wl12xx: add driver

wl12xx is a driver for TI wl1251 802.11 chipset designed for embedded
devices, supporting both SDIO and SPI busses. Currently the driver
supports only SPI. Adding support 1253 (the 5 GHz version) should be
relatively easy. More information here:

http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?contentId=4711&navigationId=12494&templateId=6123

(Collapsed original sequence of pre-merge patches into single commit for
initial merge. -- JWL)
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/Kconfig

@@ -500,5 +500,6 @@ source "drivers/net/wireless/b43legacy/Kconfig"
 source "drivers/net/wireless/zd1211rw/Kconfig"
 source "drivers/net/wireless/rt2x00/Kconfig"
 source "drivers/net/wireless/orinoco/Kconfig"
+source "drivers/net/wireless/wl12xx/Kconfig"
 
 endmenu

drivers/net/wireless/Makefile

@@ -58,3 +58,5 @@ obj-$(CONFIG_P54_COMMON)	+= p54/
 obj-$(CONFIG_ATH_COMMON)	+= ath/
 
 obj-$(CONFIG_MAC80211_HWSIM)	+= mac80211_hwsim.o
+
+obj-$(CONFIG_WL12XX)	+= wl12xx/

drivers/net/wireless/wl12xx/Kconfig

+config WL12XX
+	tristate "TI wl1251/wl1271 support"
+	depends on MAC80211 && WLAN_80211 && SPI_MASTER && EXPERIMENTAL
+	select FW_LOADER
+	select CRC7
+	---help---
+	  This module adds support for wireless adapters based on
+	  TI wl1251/wl1271 chipsets.
+
+	  If you choose to build a module, it'll be called wl12xx. Say N if
+	  unsure.

drivers/net/wireless/wl12xx/Makefile

+wl12xx-objs		= main.o spi.o event.o tx.o rx.o \
+			  ps.o cmd.o acx.o boot.o init.o wl1251.o \
+			  debugfs.o
+obj-$(CONFIG_WL12XX)	+= wl12xx.o

drivers/net/wireless/wl12xx/acx.c

+#include "acx.h"
+
+#include <linux/module.h>
+#include <linux/crc7.h>
+#include <linux/spi/spi.h>
+
+#include "wl12xx.h"
+#include "wl12xx_80211.h"
+#include "reg.h"
+#include "spi.h"
+#include "ps.h"
+
+int wl12xx_acx_frame_rates(struct wl12xx *wl, u8 ctrl_rate, u8 ctrl_mod,
+			   u8 mgt_rate, u8 mgt_mod)
+{
+	int ret;
+	struct acx_fw_gen_frame_rates rates;
+
+	wl12xx_debug(DEBUG_ACX, "acx frame rates");
+
+	rates.header.id = ACX_FW_GEN_FRAME_RATES;
+	rates.header.len = sizeof(struct acx_fw_gen_frame_rates) -
+		sizeof(struct acx_header);
+
+	rates.tx_ctrl_frame_rate = ctrl_rate;
+	rates.tx_ctrl_frame_mod = ctrl_mod;
+	rates.tx_mgt_frame_rate = mgt_rate;
+	rates.tx_mgt_frame_mod = mgt_mod;
+
+	ret = wl12xx_cmd_configure(wl, &rates, sizeof(rates));
+	if (ret < 0) {
+		wl12xx_error("Failed to set FW rates and modulation");
+		return ret;
+	}
+
+	return 0;
+}
+
+
+int wl12xx_acx_station_id(struct wl12xx *wl)
+{
+	int ret, i;
+	struct dot11_station_id mac;
+
+	wl12xx_debug(DEBUG_ACX, "acx dot11_station_id");
+
+	mac.header.id = DOT11_STATION_ID;
+	mac.header.len = sizeof(mac) - sizeof(struct acx_header);
+
+	for (i = 0; i < ETH_ALEN; i++)
+		mac.mac[i] = wl->mac_addr[ETH_ALEN - 1 - i];
+
+	ret = wl12xx_cmd_configure(wl, &mac, sizeof(mac));
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_acx_default_key(struct wl12xx *wl, u8 key_id)
+{
+	struct acx_dot11_default_key default_key;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx dot11_default_key (%d)", key_id);
+
+	default_key.header.id = DOT11_DEFAULT_KEY;
+	default_key.header.len = sizeof(default_key) -
+		sizeof(struct acx_header);
+
+	default_key.id = key_id;
+
+	ret = wl12xx_cmd_configure(wl, &default_key, sizeof(default_key));
+	if (ret < 0) {
+		wl12xx_error("Couldnt set default key");
+		return ret;
+	}
+
+	wl->default_key = key_id;
+
+	return 0;
+}
+
+int wl12xx_acx_wake_up_conditions(struct wl12xx *wl, u8 listen_interval)
+{
+	struct acx_wake_up_condition wake_up;
+
+	wl12xx_debug(DEBUG_ACX, "acx wake up conditions");
+
+	wake_up.header.id = ACX_WAKE_UP_CONDITIONS;
+	wake_up.header.len = sizeof(wake_up) - sizeof(struct acx_header);
+
+	wake_up.wake_up_event = WAKE_UP_EVENT_DTIM_BITMAP;
+	wake_up.listen_interval = listen_interval;
+
+	return wl12xx_cmd_configure(wl, &wake_up, sizeof(wake_up));
+}
+
+int wl12xx_acx_sleep_auth(struct wl12xx *wl, u8 sleep_auth)
+{
+	int ret;
+	struct acx_sleep_auth auth;
+
+	wl12xx_debug(DEBUG_ACX, "acx sleep auth");
+
+	auth.header.id = ACX_SLEEP_AUTH;
+	auth.header.len = sizeof(auth) - sizeof(struct acx_header);
+
+	auth.sleep_auth = sleep_auth;
+
+	ret = wl12xx_cmd_configure(wl, &auth, sizeof(auth));
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_acx_fw_version(struct wl12xx *wl, char *buf, size_t len)
+{
+	struct wl12xx_command cmd;
+	struct acx_revision *rev;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx fw rev");
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	ret = wl12xx_cmd_interrogate(wl, ACX_FW_REV, sizeof(*rev), &cmd);
+	if (ret < 0) {
+		wl12xx_warning("ACX_FW_REV interrogate failed");
+		return ret;
+	}
+
+	rev = (struct acx_revision *) &cmd.parameters;
+
+	/* be careful with the buffer sizes */
+	strncpy(buf, rev->fw_version, min(len, sizeof(rev->fw_version)));
+
+	/*
+	 * if the firmware version string is exactly
+	 * sizeof(rev->fw_version) long or fw_len is less than
+	 * sizeof(rev->fw_version) it won't be null terminated
+	 */
+	buf[min(len, sizeof(rev->fw_version)) - 1] = '\0';
+
+	return 0;
+}
+
+int wl12xx_acx_tx_power(struct wl12xx *wl, int power)
+{
+	struct acx_current_tx_power ie;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx dot11_cur_tx_pwr");
+
+	if (power < 0 || power > 25)
+		return -EINVAL;
+
+	memset(&ie, 0, sizeof(ie));
+
+	ie.header.id = DOT11_CUR_TX_PWR;
+	ie.header.len = sizeof(ie) - sizeof(struct acx_header);
+	ie.current_tx_power = power * 10;
+
+	ret = wl12xx_cmd_configure(wl, &ie, sizeof(ie));
+	if (ret < 0) {
+		wl12xx_warning("configure of tx power failed: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_feature_cfg(struct wl12xx *wl)
+{
+	struct acx_feature_config feature;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx feature cfg");
+
+	memset(&feature, 0, sizeof(feature));
+
+	feature.header.id = ACX_FEATURE_CFG;
+	feature.header.len = sizeof(feature) - sizeof(struct acx_header);
+
+	/* DF_ENCRYPTION_DISABLE and DF_SNIFF_MODE_ENABLE are disabled */
+	feature.data_flow_options = 0;
+	feature.options = 0;
+
+	ret = wl12xx_cmd_configure(wl, &feature, sizeof(feature));
+	if (ret < 0)
+		wl12xx_error("Couldnt set HW encryption");
+
+	return ret;
+}
+
+int wl12xx_acx_mem_map(struct wl12xx *wl, void *mem_map, size_t len)
+{
+	struct wl12xx_command cmd;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx mem map");
+
+	ret = wl12xx_cmd_interrogate(wl, ACX_MEM_MAP, len, &cmd);
+	if (ret < 0)
+		return ret;
+	else if (cmd.status != CMD_STATUS_SUCCESS)
+		return -EIO;
+
+	memcpy(mem_map, &cmd.parameters, len);
+
+	return 0;
+}
+
+int wl12xx_acx_data_path_params(struct wl12xx *wl,
+				struct acx_data_path_params_resp *data_path)
+{
+	struct acx_data_path_params params;
+	struct wl12xx_command cmd;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx data path params");
+
+	params.rx_packet_ring_chunk_size = DP_RX_PACKET_RING_CHUNK_SIZE;
+	params.tx_packet_ring_chunk_size = DP_TX_PACKET_RING_CHUNK_SIZE;
+
+	params.rx_packet_ring_chunk_num = DP_RX_PACKET_RING_CHUNK_NUM;
+	params.tx_packet_ring_chunk_num = DP_TX_PACKET_RING_CHUNK_NUM;
+
+	params.tx_complete_threshold = 1;
+
+	params.tx_complete_ring_depth = FW_TX_CMPLT_BLOCK_SIZE;
+
+	params.tx_complete_timeout = DP_TX_COMPLETE_TIME_OUT;
+
+	params.header.id = ACX_DATA_PATH_PARAMS;
+	params.header.len = sizeof(params) - sizeof(struct acx_header);
+
+	ret = wl12xx_cmd_configure(wl, &params, sizeof(params));
+	if (ret < 0)
+		return ret;
+
+
+	ret = wl12xx_cmd_interrogate(wl, ACX_DATA_PATH_PARAMS,
+				     sizeof(struct acx_data_path_params_resp),
+				     &cmd);
+
+	if (ret < 0) {
+		wl12xx_warning("failed to read data path parameters: %d", ret);
+		return ret;
+	} else if (cmd.status != CMD_STATUS_SUCCESS) {
+		wl12xx_warning("data path parameter acx status failed");
+		return -EIO;
+	}
+
+	memcpy(data_path, &cmd.parameters, sizeof(*data_path));
+
+	return 0;
+}
+
+int wl12xx_acx_rx_msdu_life_time(struct wl12xx *wl, u32 life_time)
+{
+	struct rx_msdu_lifetime msdu_lifetime;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx rx msdu life time");
+
+	msdu_lifetime.header.id = DOT11_RX_MSDU_LIFE_TIME;
+	msdu_lifetime.header.len = sizeof(msdu_lifetime) -
+		sizeof(struct acx_header);
+	msdu_lifetime.lifetime = life_time;
+
+	ret = wl12xx_cmd_configure(wl, &msdu_lifetime, sizeof(msdu_lifetime));
+	if (ret < 0) {
+		wl12xx_warning("failed to set rx msdu life time: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_rx_config(struct wl12xx *wl, u32 config, u32 filter)
+{
+	struct acx_rx_config rx_config;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx rx config");
+
+	rx_config.header.id = ACX_RX_CFG;
+	rx_config.header.len = sizeof(rx_config) - sizeof(struct acx_header);
+	rx_config.config_options = config;
+	rx_config.filter_options = filter;
+
+	ret = wl12xx_cmd_configure(wl, &rx_config, sizeof(rx_config));
+	if (ret < 0) {
+		wl12xx_warning("failed to set rx config: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_pd_threshold(struct wl12xx *wl)
+{
+	struct acx_packet_detection packet_detection;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx data pd threshold");
+
+	/* FIXME: threshold value not set */
+	packet_detection.header.id = ACX_PD_THRESHOLD;
+	packet_detection.header.len = sizeof(packet_detection) -
+		sizeof(struct acx_header);
+
+	ret = wl12xx_cmd_configure(wl, &packet_detection,
+				   sizeof(packet_detection));
+	if (ret < 0) {
+		wl12xx_warning("failed to set pd threshold: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_slot(struct wl12xx *wl, enum acx_slot_type slot_time)
+{
+	struct acx_slot slot;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx slot");
+
+	slot.header.id = ACX_SLOT;
+	slot.header.len = sizeof(slot) - sizeof(struct acx_header);
+
+	slot.wone_index = STATION_WONE_INDEX;
+	slot.slot_time = slot_time;
+
+	ret = wl12xx_cmd_configure(wl, &slot, sizeof(slot));
+	if (ret < 0) {
+		wl12xx_warning("failed to set slot time: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_group_address_tbl(struct wl12xx *wl)
+{
+	struct multicast_grp_addr_start multicast;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx group address tbl");
+
+	/* MAC filtering */
+	multicast.header.id = DOT11_GROUP_ADDRESS_TBL;
+	multicast.header.len = sizeof(multicast) - sizeof(struct acx_header);
+
+	multicast.enabled = 0;
+	multicast.num_groups = 0;
+	memset(multicast.mac_table, 0, ADDRESS_GROUP_MAX_LEN);
+
+	ret = wl12xx_cmd_configure(wl, &multicast, sizeof(multicast));
+	if (ret < 0) {
+		wl12xx_warning("failed to set group addr table: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_service_period_timeout(struct wl12xx *wl)
+{
+	struct acx_rx_timeout rx_timeout;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx service period timeout");
+
+	/* RX timeout */
+	rx_timeout.header.id = ACX_SERVICE_PERIOD_TIMEOUT;
+	rx_timeout.header.len = sizeof(rx_timeout) - sizeof(struct acx_header);
+
+	rx_timeout.ps_poll_timeout = RX_TIMEOUT_PS_POLL_DEF;
+	rx_timeout.upsd_timeout = RX_TIMEOUT_UPSD_DEF;
+
+	ret = wl12xx_cmd_configure(wl, &rx_timeout, sizeof(rx_timeout));
+	if (ret < 0) {
+		wl12xx_warning("failed to set service period timeout: %d",
+			       ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_rts_threshold(struct wl12xx *wl, u16 rts_threshold)
+{
+	struct acx_rts_threshold rts;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx rts threshold");
+
+	rts.header.id = DOT11_RTS_THRESHOLD;
+	rts.header.len = sizeof(rts) - sizeof(struct acx_header);
+
+	rts.threshold = rts_threshold;
+
+	ret = wl12xx_cmd_configure(wl, &rts, sizeof(rts));
+	if (ret < 0) {
+		wl12xx_warning("failed to set rts threshold: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_beacon_filter_opt(struct wl12xx *wl)
+{
+	struct acx_beacon_filter_option beacon_filter;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx beacon filter opt");
+
+	beacon_filter.header.id = ACX_BEACON_FILTER_OPT;
+	beacon_filter.header.len = sizeof(beacon_filter) -
+		sizeof(struct acx_header);
+
+	beacon_filter.enable = 0;
+	beacon_filter.max_num_beacons = 0;
+
+	ret = wl12xx_cmd_configure(wl, &beacon_filter, sizeof(beacon_filter));
+	if (ret < 0) {
+		wl12xx_warning("failed to set beacon filter opt: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_beacon_filter_table(struct wl12xx *wl)
+{
+	struct acx_beacon_filter_ie_table ie_table;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx beacon filter table");
+
+	ie_table.header.id = ACX_BEACON_FILTER_TABLE;
+	ie_table.header.len = sizeof(ie_table) - sizeof(struct acx_header);
+
+	ie_table.num_ie = 0;
+	memset(ie_table.table, 0, BEACON_FILTER_TABLE_MAX_SIZE);
+
+	ret = wl12xx_cmd_configure(wl, &ie_table, sizeof(ie_table));
+	if (ret < 0) {
+		wl12xx_warning("failed to set beacon filter table: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_sg_enable(struct wl12xx *wl)
+{
+	struct acx_bt_wlan_coex pta;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx sg enable");
+
+	pta.header.id = ACX_SG_ENABLE;
+	pta.header.len = sizeof(pta) - sizeof(struct acx_header);
+
+	pta.enable = SG_ENABLE;
+
+	ret = wl12xx_cmd_configure(wl, &pta, sizeof(pta));
+	if (ret < 0) {
+		wl12xx_warning("failed to set softgemini enable: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_sg_cfg(struct wl12xx *wl)
+{
+	struct acx_bt_wlan_coex_param param;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx sg cfg");
+
+	/* BT-WLAN coext parameters */
+	param.header.id = ACX_SG_CFG;
+	param.header.len = sizeof(param) - sizeof(struct acx_header);
+
+	param.min_rate = RATE_INDEX_24MBPS;
+	param.bt_hp_max_time = PTA_BT_HP_MAXTIME_DEF;
+	param.wlan_hp_max_time = PTA_WLAN_HP_MAX_TIME_DEF;
+	param.sense_disable_timer = PTA_SENSE_DISABLE_TIMER_DEF;
+	param.rx_time_bt_hp = PTA_PROTECTIVE_RX_TIME_DEF;
+	param.tx_time_bt_hp = PTA_PROTECTIVE_TX_TIME_DEF;
+	param.rx_time_bt_hp_fast = PTA_PROTECTIVE_RX_TIME_FAST_DEF;
+	param.tx_time_bt_hp_fast = PTA_PROTECTIVE_TX_TIME_FAST_DEF;
+	param.wlan_cycle_fast = PTA_CYCLE_TIME_FAST_DEF;
+	param.bt_anti_starvation_period = PTA_ANTI_STARVE_PERIOD_DEF;
+	param.next_bt_lp_packet = PTA_TIMEOUT_NEXT_BT_LP_PACKET_DEF;
+	param.wake_up_beacon = PTA_TIME_BEFORE_BEACON_DEF;
+	param.hp_dm_max_guard_time = PTA_HPDM_MAX_TIME_DEF;
+	param.next_wlan_packet = PTA_TIME_OUT_NEXT_WLAN_DEF;
+	param.antenna_type = PTA_ANTENNA_TYPE_DEF;
+	param.signal_type = PTA_SIGNALING_TYPE_DEF;
+	param.afh_leverage_on = PTA_AFH_LEVERAGE_ON_DEF;
+	param.quiet_cycle_num = PTA_NUMBER_QUIET_CYCLE_DEF;
+	param.max_cts = PTA_MAX_NUM_CTS_DEF;
+	param.wlan_packets_num = PTA_NUMBER_OF_WLAN_PACKETS_DEF;
+	param.bt_packets_num = PTA_NUMBER_OF_BT_PACKETS_DEF;
+	param.missed_rx_avalanche = PTA_RX_FOR_AVALANCHE_DEF;
+	param.wlan_elp_hp = PTA_ELP_HP_DEF;
+	param.bt_anti_starvation_cycles = PTA_ANTI_STARVE_NUM_CYCLE_DEF;
+	param.ack_mode_dual_ant = PTA_ACK_MODE_DEF;
+	param.pa_sd_enable = PTA_ALLOW_PA_SD_DEF;
+	param.pta_auto_mode_enable = PTA_AUTO_MODE_NO_CTS_DEF;
+	param.bt_hp_respected_num = PTA_BT_HP_RESPECTED_DEF;
+
+	ret = wl12xx_cmd_configure(wl, &param, sizeof(param));
+	if (ret < 0) {
+		wl12xx_warning("failed to set sg config: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_cca_threshold(struct wl12xx *wl)
+{
+	struct acx_energy_detection detection;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx cca threshold");
+
+	detection.header.id = ACX_CCA_THRESHOLD;
+	detection.header.len = sizeof(detection) - sizeof(struct acx_header);
+
+	detection.rx_cca_threshold = CCA_THRSH_DISABLE_ENERGY_D;
+	detection.tx_energy_detection = 0;
+
+	ret = wl12xx_cmd_configure(wl, &detection, sizeof(detection));
+	if (ret < 0) {
+		wl12xx_warning("failed to set cca threshold: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_bcn_dtim_options(struct wl12xx *wl)
+{
+	struct acx_beacon_broadcast bb;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx bcn dtim options");
+
+	bb.header.id = ACX_BCN_DTIM_OPTIONS;
+	bb.header.len = sizeof(bb) - sizeof(struct acx_header);
+
+	bb.beacon_rx_timeout = BCN_RX_TIMEOUT_DEF_VALUE;
+	bb.broadcast_timeout = BROADCAST_RX_TIMEOUT_DEF_VALUE;
+	bb.rx_broadcast_in_ps = RX_BROADCAST_IN_PS_DEF_VALUE;
+	bb.ps_poll_threshold = CONSECUTIVE_PS_POLL_FAILURE_DEF;
+
+	ret = wl12xx_cmd_configure(wl, &bb, sizeof(bb));
+	if (ret < 0) {
+		wl12xx_warning("failed to set rx config: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_aid(struct wl12xx *wl, u16 aid)
+{
+	struct acx_aid acx_aid;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx aid");
+
+	acx_aid.header.id = ACX_AID;
+	acx_aid.header.len = sizeof(acx_aid) - sizeof(struct acx_header);
+
+	acx_aid.aid = aid;
+
+	ret = wl12xx_cmd_configure(wl, &acx_aid, sizeof(acx_aid));
+	if (ret < 0) {
+		wl12xx_warning("failed to set aid: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_event_mbox_mask(struct wl12xx *wl, u32 event_mask)
+{
+	struct acx_event_mask mask;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx event mbox mask");
+
+	mask.header.id = ACX_EVENT_MBOX_MASK;
+	mask.header.len = sizeof(mask) - sizeof(struct acx_header);
+
+	/* high event mask is unused */
+	mask.high_event_mask = 0xffffffff;
+
+	mask.event_mask = event_mask;
+
+	ret = wl12xx_cmd_configure(wl, &mask, sizeof(mask));
+	if (ret < 0) {
+		wl12xx_warning("failed to set aid: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_acx_set_preamble(struct wl12xx *wl, enum acx_preamble_type preamble)
+{
+	struct acx_preamble ie;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx_set_preamble");
+
+	memset(&ie, 0, sizeof(ie));
+
+	ie.header.id = ACX_PREAMBLE_TYPE;
+	ie.header.len = sizeof(ie) - sizeof(struct acx_header);
+	ie.preamble = preamble;
+	ret = wl12xx_cmd_configure(wl, &ie, sizeof(ie));
+	if (ret < 0) {
+		wl12xx_warning("Setting of preamble failed: %d", ret);
+		return ret;
+	}
+	return 0;
+}
+
+int wl12xx_acx_cts_protect(struct wl12xx *wl,
+			   enum acx_ctsprotect_type ctsprotect)
+{
+	struct acx_ctsprotect ie;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx_set_ctsprotect");
+
+	memset(&ie, 0, sizeof(ie));
+
+	ie.header.id = ACX_CTS_PROTECTION;
+	ie.header.len = sizeof(ie) - sizeof(struct acx_header);
+	ie.ctsprotect = ctsprotect;
+	ret = wl12xx_cmd_configure(wl, &ie, sizeof(ie));
+	if (ret < 0) {
+		wl12xx_warning("Setting of ctsprotect failed: %d", ret);
+		return ret;
+	}
+	return 0;
+}
+
+int wl12xx_acx_statistics(struct wl12xx *wl, struct acx_statistics *stats)
+{
+	struct wl12xx_command *answer;
+	int ret;
+
+	wl12xx_debug(DEBUG_ACX, "acx statistics");
+
+	answer = kmalloc(sizeof(*answer), GFP_KERNEL);
+	if (!answer) {
+		wl12xx_warning("could not allocate memory for acx statistics");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ret = wl12xx_cmd_interrogate(wl, ACX_STATISTICS, sizeof(*answer),
+				     answer);
+	if (ret < 0) {
+		wl12xx_warning("acx statistics failed: %d", ret);
+		goto out;
+	}
+
+	memcpy(stats, answer->parameters, sizeof(*stats));
+
+out:
+	kfree(answer);
+	return ret;
+}

drivers/net/wireless/wl12xx/acx.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_ACX_H__
+#define __WL12XX_ACX_H__
+
+#include "wl12xx.h"
+
+/* Target's information element */
+struct acx_header {
+	u16 id;
+	u16 len;
+};
+
+struct acx_error_counter {
+	struct acx_header header;
+
+	/* The number of PLCP errors since the last time this */
+	/* information element was interrogated. This field is */
+	/* automatically cleared when it is interrogated.*/
+	u32 PLCP_error;
+
+	/* The number of FCS errors since the last time this */
+	/* information element was interrogated. This field is */
+	/* automatically cleared when it is interrogated.*/
+	u32 FCS_error;
+
+	/* The number of MPDUs without PLCP header errors received*/
+	/* since the last time this information element was interrogated. */
+	/* This field is automatically cleared when it is interrogated.*/
+	u32 valid_frame;
+
+	/* the number of missed sequence numbers in the squentially */
+	/* values of frames seq numbers */
+	u32 seq_num_miss;
+} __attribute__ ((packed));
+
+struct acx_revision {
+	struct acx_header header;
+
+	/*
+	 * The WiLink firmware version, an ASCII string x.x.x.x,
+	 * that uniquely identifies the current firmware.
+	 * The left most digit is incremented each time a
+	 * significant change is made to the firmware, such as
+	 * code redesign or new platform support.
+	 * The second digit is incremented when major enhancements
+	 * are added or major fixes are made.
+	 * The third digit is incremented for each GA release.
+	 * The fourth digit is incremented for each build.
+	 * The first two digits identify a firmware release version,
+	 * in other words, a unique set of features.
+	 * The first three digits identify a GA release.
+	 */
+	char fw_version[20];
+
+	/*
+	 * This 4 byte field specifies the WiLink hardware version.
+	 * bits 0  - 15: Reserved.
+	 * bits 16 - 23: Version ID - The WiLink version ID
+	 *              (1 = first spin, 2 = second spin, and so on).
+	 * bits 24 - 31: Chip ID - The WiLink chip ID.
+	 */
+	u32 hw_version;
+} __attribute__ ((packed));
+
+enum wl12xx_psm_mode {
+	/* Active mode */
+	WL12XX_PSM_CAM = 0,
+
+	/* Power save mode */
+	WL12XX_PSM_PS = 1,
+
+	/* Extreme low power */
+	WL12XX_PSM_ELP = 2,
+};
+
+struct acx_sleep_auth {
+	struct acx_header header;
+
+	/* The sleep level authorization of the device. */
+	/* 0 - Always active*/
+	/* 1 - Power down mode: light / fast sleep*/
+	/* 2 - ELP mode: Deep / Max sleep*/
+	u8  sleep_auth;
+	u8  padding[3];
+} __attribute__ ((packed));
+
+#define TIM_ELE_ID    5
+#define PARTIAL_VBM_MAX    251
+
+struct tim {
+	u8 identity;
+	u8 length;
+	u8 dtim_count;
+	u8 dtim_period;
+	u8 bitmap_ctrl;
+	u8 pvb_field[PARTIAL_VBM_MAX]; /* Partial Virtual Bitmap */
+} __attribute__ ((packed));
+
+/* Virtual Bit Map update */
+struct vbm_update_request {
+	__le16 len;
+	u8  padding[2];
+	struct tim tim;
+} __attribute__ ((packed));
+
+enum {
+	HOSTIF_PCI_MASTER_HOST_INDIRECT,
+	HOSTIF_PCI_MASTER_HOST_DIRECT,
+	HOSTIF_SLAVE,
+	HOSTIF_PKT_RING,
+	HOSTIF_DONTCARE = 0xFF
+};
+
+#define DEFAULT_UCAST_PRIORITY          0
+#define DEFAULT_RX_Q_PRIORITY           0
+#define DEFAULT_NUM_STATIONS            1
+#define DEFAULT_RXQ_PRIORITY            0 /* low 0 .. 15 high  */
+#define DEFAULT_RXQ_TYPE                0x07    /* All frames, Data/Ctrl/Mgmt */
+#define TRACE_BUFFER_MAX_SIZE           256
+
+#define  DP_RX_PACKET_RING_CHUNK_SIZE 1600
+#define  DP_TX_PACKET_RING_CHUNK_SIZE 1600
+#define  DP_RX_PACKET_RING_CHUNK_NUM 2
+#define  DP_TX_PACKET_RING_CHUNK_NUM 2
+#define  DP_TX_COMPLETE_TIME_OUT 20
+#define  FW_TX_CMPLT_BLOCK_SIZE 16
+
+struct acx_data_path_params {
+	struct acx_header header;
+
+	u16 rx_packet_ring_chunk_size;
+	u16 tx_packet_ring_chunk_size;
+
+	u8 rx_packet_ring_chunk_num;
+	u8 tx_packet_ring_chunk_num;
+
+	/*
+	 * Maximum number of packets that can be gathered
+	 * in the TX complete ring before an interrupt
+	 * is generated.
+	 */
+	u8 tx_complete_threshold;
+
+	/* Number of pending TX complete entries in cyclic ring.*/
+	u8 tx_complete_ring_depth;
+
+	/*
+	 * Max num microseconds since a packet enters the TX
+	 * complete ring until an interrupt is generated.
+	 */
+	u32 tx_complete_timeout;
+} __attribute__ ((packed));
+
+
+struct acx_data_path_params_resp {
+	struct acx_header header;
+
+	u16 rx_packet_ring_chunk_size;
+	u16 tx_packet_ring_chunk_size;
+
+	u8 rx_packet_ring_chunk_num;
+	u8 tx_packet_ring_chunk_num;
+
+	u8 pad[2];
+
+	u32 rx_packet_ring_addr;
+	u32 tx_packet_ring_addr;
+
+	u32 rx_control_addr;
+	u32 tx_control_addr;
+
+	u32 tx_complete_addr;
+} __attribute__ ((packed));
+
+#define TX_MSDU_LIFETIME_MIN       0
+#define TX_MSDU_LIFETIME_MAX       3000
+#define TX_MSDU_LIFETIME_DEF       512
+#define RX_MSDU_LIFETIME_MIN       0
+#define RX_MSDU_LIFETIME_MAX       0xFFFFFFFF
+#define RX_MSDU_LIFETIME_DEF       512000
+
+struct rx_msdu_lifetime {
+	struct acx_header header;
+
+	/*
+	 * The maximum amount of time, in TU, before the
+	 * firmware discards the MSDU.
+	 */
+	u32 lifetime;
+} __attribute__ ((packed));
+
+/*
+ * RX Config Options Table
+ * Bit		Definition
+ * ===		==========
+ * 31:14		Reserved
+ * 13		Copy RX Status - when set, write three receive status words
+ * 	 	to top of rx'd MPDUs.
+ * 		When cleared, do not write three status words (added rev 1.5)
+ * 12		Reserved
+ * 11		RX Complete upon FCS error - when set, give rx complete
+ *	 	interrupt for FCS errors, after the rx filtering, e.g. unicast
+ *	 	frames not to us with FCS error will not generate an interrupt.
+ * 10		SSID Filter Enable - When set, the WiLink discards all beacon,
+ *	        probe request, and probe response frames with an SSID that does
+ *		not match the SSID specified by the host in the START/JOIN
+ *		command.
+ *		When clear, the WiLink receives frames with any SSID.
+ * 9		Broadcast Filter Enable - When set, the WiLink discards all
+ * 	 	broadcast frames. When clear, the WiLink receives all received
+ *		broadcast frames.
+ * 8:6		Reserved
+ * 5		BSSID Filter Enable - When set, the WiLink discards any frames
+ * 	 	with a BSSID that does not match the BSSID specified by the
+ *		host.
+ *		When clear, the WiLink receives frames from any BSSID.
+ * 4		MAC Addr Filter - When set, the WiLink discards any frames
+ * 	 	with a destination address that does not match the MAC address
+ *		of the adaptor.
+ *		When clear, the WiLink receives frames destined to any MAC
+ *		address.
+ * 3		Promiscuous - When set, the WiLink receives all valid frames
+ * 	 	(i.e., all frames that pass the FCS check).
+ *		When clear, only frames that pass the other filters specified
+ *		are received.
+ * 2		FCS - When set, the WiLink includes the FCS with the received
+ *	 	frame.
+ *		When cleared, the FCS is discarded.
+ * 1		PLCP header - When set, write all data from baseband to frame
+ * 	 	buffer including PHY header.
+ * 0		Reserved - Always equal to 0.
+ *
+ * RX Filter Options Table
+ * Bit		Definition
+ * ===		==========
+ * 31:12		Reserved - Always equal to 0.
+ * 11		Association - When set, the WiLink receives all association
+ * 	 	related frames (association request/response, reassocation
+ *		request/response, and disassociation). When clear, these frames
+ *		are discarded.
+ * 10		Auth/De auth - When set, the WiLink receives all authentication
+ * 	 	and de-authentication frames. When clear, these frames are
+ *		discarded.
+ * 9		Beacon - When set, the WiLink receives all beacon frames.
+ * 	 	When clear, these frames are discarded.
+ * 8		Contention Free - When set, the WiLink receives all contention
+ * 	 	free frames.
+ *		When clear, these frames are discarded.
+ * 7		Control - When set, the WiLink receives all control frames.
+ * 	 	When clear, these frames are discarded.
+ * 6		Data - When set, the WiLink receives all data frames.
+ * 	 	When clear, these frames are discarded.
+ * 5		FCS Error - When set, the WiLink receives frames that have FCS
+ *	 	errors.
+ *		When clear, these frames are discarded.
+ * 4		Management - When set, the WiLink receives all management
+ *		frames.
+ * 	 	When clear, these frames are discarded.
+ * 3		Probe Request - When set, the WiLink receives all probe request
+ * 	 	frames.
+ *		When clear, these frames are discarded.
+ * 2		Probe Response - When set, the WiLink receives all probe
+ * 		response frames.
+ *		When clear, these frames are discarded.
+ * 1		RTS/CTS/ACK - When set, the WiLink receives all RTS, CTS and ACK
+ * 	 	frames.
+ *		When clear, these frames are discarded.
+ * 0		Rsvd Type/Sub Type - When set, the WiLink receives all frames
+ * 	 	that have reserved frame types and sub types as defined by the
+ *		802.11 specification.
+ *		When clear, these frames are discarded.
+ */
+struct acx_rx_config {
+	struct acx_header header;
+
+	u32 config_options;
+	u32 filter_options;
+} __attribute__ ((packed));
+
+enum {
+	QOS_AC_BE = 0,
+	QOS_AC_BK,
+	QOS_AC_VI,
+	QOS_AC_VO,
+	QOS_HIGHEST_AC_INDEX = QOS_AC_VO,
+};
+
+#define MAX_NUM_OF_AC             (QOS_HIGHEST_AC_INDEX+1)
+#define FIRST_AC_INDEX            QOS_AC_BE
+#define MAX_NUM_OF_802_1d_TAGS    8
+#define AC_PARAMS_MAX_TSID        15
+#define MAX_APSD_CONF             0xffff
+
+#define  QOS_TX_HIGH_MIN      (0)
+#define  QOS_TX_HIGH_MAX      (100)
+
+#define  QOS_TX_HIGH_BK_DEF   (25)
+#define  QOS_TX_HIGH_BE_DEF   (35)
+#define  QOS_TX_HIGH_VI_DEF   (35)
+#define  QOS_TX_HIGH_VO_DEF   (35)
+
+#define  QOS_TX_LOW_BK_DEF    (15)
+#define  QOS_TX_LOW_BE_DEF    (25)
+#define  QOS_TX_LOW_VI_DEF    (25)
+#define  QOS_TX_LOW_VO_DEF    (25)
+
+struct acx_tx_queue_qos_config {
+	struct acx_header header;
+
+	u8 qid;
+	u8 pad[3];
+
+	/* Max number of blocks allowd in the queue */
+	u16 high_threshold;
+
+	/* Lowest memory blocks guaranteed for this queue */
+	u16 low_threshold;
+} __attribute__ ((packed));
+
+struct acx_packet_detection {
+	struct acx_header header;
+
+	u32 threshold;
+} __attribute__ ((packed));
+
+
+enum acx_slot_type {
+	SLOT_TIME_LONG = 0,
+	SLOT_TIME_SHORT = 1,
+	DEFAULT_SLOT_TIME = SLOT_TIME_SHORT,
+	MAX_SLOT_TIMES = 0xFF
+};
+
+#define STATION_WONE_INDEX 0
+
+struct acx_slot {
+	struct acx_header header;
+
+	u8 wone_index; /* Reserved */
+	u8 slot_time;
+	u8 reserved[6];
+} __attribute__ ((packed));
+
+
+#define ADDRESS_GROUP_MAX	(8)
+#define ADDRESS_GROUP_MAX_LEN	(ETH_ALEN * ADDRESS_GROUP_MAX)
+
+struct multicast_grp_addr_start {
+	struct acx_header header;
+
+	u8 enabled;
+	u8 num_groups;
+	u8 pad[2];
+	u8 mac_table[ADDRESS_GROUP_MAX_LEN];
+} __attribute__ ((packed));
+
+
+#define  RX_TIMEOUT_PS_POLL_MIN    0
+#define  RX_TIMEOUT_PS_POLL_MAX    (200000)
+#define  RX_TIMEOUT_PS_POLL_DEF    (15)
+#define  RX_TIMEOUT_UPSD_MIN       0
+#define  RX_TIMEOUT_UPSD_MAX       (200000)
+#define  RX_TIMEOUT_UPSD_DEF       (15)
+
+struct acx_rx_timeout {
+	struct acx_header header;
+
+	/*
+	 * The longest time the STA will wait to receive
+	 * traffic from the AP after a PS-poll has been
+	 * transmitted.
+	 */
+	u16 ps_poll_timeout;
+
+	/*
+	 * The longest time the STA will wait to receive
+	 * traffic from the AP after a frame has been sent
+	 * from an UPSD enabled queue.
+	 */
+	u16 upsd_timeout;
+} __attribute__ ((packed));
+
+#define RTS_THRESHOLD_MIN              0
+#define RTS_THRESHOLD_MAX              4096
+#define RTS_THRESHOLD_DEF              2347
+
+struct acx_rts_threshold {
+	struct acx_header header;
+
+	u16 threshold;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+struct acx_beacon_filter_option {
+	struct acx_header header;
+
+	u8 enable;
+
+	/*
+	 * The number of beacons without the unicast TIM
+	 * bit set that the firmware buffers before
+	 * signaling the host about ready frames.
+	 * When set to 0 and the filter is enabled, beacons
+	 * without the unicast TIM bit set are dropped.
+	 */
+	u8 max_num_beacons;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+/*
+ * ACXBeaconFilterEntry (not 221)
+ * Byte Offset     Size (Bytes)    Definition
+ * ===========     ============    ==========
+ * 0				1               IE identifier
+ * 1               1               Treatment bit mask
+ *
+ * ACXBeaconFilterEntry (221)
+ * Byte Offset     Size (Bytes)    Definition
+ * ===========     ============    ==========
+ * 0               1               IE identifier
+ * 1               1               Treatment bit mask
+ * 2               3               OUI
+ * 5               1               Type
+ * 6               2               Version
+ *
+ *
+ * Treatment bit mask - The information element handling:
+ * bit 0 - The information element is compared and transferred
+ * in case of change.
+ * bit 1 - The information element is transferred to the host
+ * with each appearance or disappearance.
+ * Note that both bits can be set at the same time.
+ */
+#define	BEACON_FILTER_TABLE_MAX_IE_NUM		       (32)
+#define BEACON_FILTER_TABLE_MAX_VENDOR_SPECIFIC_IE_NUM (6)
+#define BEACON_FILTER_TABLE_IE_ENTRY_SIZE	       (2)
+#define BEACON_FILTER_TABLE_EXTRA_VENDOR_SPECIFIC_IE_SIZE (6)
+#define BEACON_FILTER_TABLE_MAX_SIZE ((BEACON_FILTER_TABLE_MAX_IE_NUM * \
+			    BEACON_FILTER_TABLE_IE_ENTRY_SIZE) + \
+			   (BEACON_FILTER_TABLE_MAX_VENDOR_SPECIFIC_IE_NUM * \
+			    BEACON_FILTER_TABLE_EXTRA_VENDOR_SPECIFIC_IE_SIZE))
+
+struct acx_beacon_filter_ie_table {
+	struct acx_header header;
+
+	u8 num_ie;
+	u8 table[BEACON_FILTER_TABLE_MAX_SIZE];
+	u8 pad[3];
+} __attribute__ ((packed));
+
+enum {
+	SG_ENABLE = 0,
+	SG_DISABLE,
+	SG_SENSE_NO_ACTIVITY,
+	SG_SENSE_ACTIVE
+};
+
+struct acx_bt_wlan_coex {
+	struct acx_header header;
+
+	/*
+	 * 0 -> PTA enabled
+	 * 1 -> PTA disabled
+	 * 2 -> sense no active mode, i.e.
+	 *      an interrupt is sent upon
+	 *      BT activity.
+	 * 3 -> PTA is switched on in response
+	 *      to the interrupt sending.
+	 */
+	u8 enable;
+	u8 pad[3];
+} __attribute__ ((packed));
+
+#define PTA_ANTENNA_TYPE_DEF		  (0)
+#define PTA_BT_HP_MAXTIME_DEF		  (2000)
+#define PTA_WLAN_HP_MAX_TIME_DEF	  (5000)
+#define PTA_SENSE_DISABLE_TIMER_DEF	  (1350)
+#define PTA_PROTECTIVE_RX_TIME_DEF	  (1500)
+#define PTA_PROTECTIVE_TX_TIME_DEF	  (1500)
+#define PTA_TIMEOUT_NEXT_BT_LP_PACKET_DEF (3000)
+#define PTA_SIGNALING_TYPE_DEF		  (1)
+#define PTA_AFH_LEVERAGE_ON_DEF		  (0)
+#define PTA_NUMBER_QUIET_CYCLE_DEF	  (0)
+#define PTA_MAX_NUM_CTS_DEF		  (3)
+#define PTA_NUMBER_OF_WLAN_PACKETS_DEF	  (2)
+#define PTA_NUMBER_OF_BT_PACKETS_DEF	  (2)
+#define PTA_PROTECTIVE_RX_TIME_FAST_DEF	  (1500)
+#define PTA_PROTECTIVE_TX_TIME_FAST_DEF	  (3000)
+#define PTA_CYCLE_TIME_FAST_DEF		  (8700)
+#define PTA_RX_FOR_AVALANCHE_DEF	  (5)
+#define PTA_ELP_HP_DEF			  (0)
+#define PTA_ANTI_STARVE_PERIOD_DEF	  (500)
+#define PTA_ANTI_STARVE_NUM_CYCLE_DEF	  (4)
+#define PTA_ALLOW_PA_SD_DEF		  (1)
+#define PTA_TIME_BEFORE_BEACON_DEF	  (6300)
+#define PTA_HPDM_MAX_TIME_DEF		  (1600)
+#define PTA_TIME_OUT_NEXT_WLAN_DEF	  (2550)
+#define PTA_AUTO_MODE_NO_CTS_DEF	  (0)
+#define PTA_BT_HP_RESPECTED_DEF		  (3)
+#define PTA_WLAN_RX_MIN_RATE_DEF	  (24)
+#define PTA_ACK_MODE_DEF		  (1)
+
+struct acx_bt_wlan_coex_param {
+	struct acx_header header;
+
+	/*
+	 * The minimum rate of a received WLAN packet in the STA,
+	 * during protective mode, of which a new BT-HP request
+	 * during this Rx will always be respected and gain the antenna.
+	 */
+	u32 min_rate;
+
+	/* Max time the BT HP will be respected. */
+	u16 bt_hp_max_time;
+
+	/* Max time the WLAN HP will be respected. */
+	u16 wlan_hp_max_time;
+
+	/*
+	 * The time between the last BT activity
+	 * and the moment when the sense mode returns
+	 * to SENSE_INACTIVE.
+	 */
+	u16 sense_disable_timer;
+
+	/* Time before the next BT HP instance */
+	u16 rx_time_bt_hp;
+	u16 tx_time_bt_hp;
+
+	/* range: 10-20000    default: 1500 */
+	u16 rx_time_bt_hp_fast;
+	u16 tx_time_bt_hp_fast;
+
+	/* range: 2000-65535  default: 8700 */
+	u16 wlan_cycle_fast;
+
+	/* range: 0 - 15000 (Msec) default: 1000 */
+	u16 bt_anti_starvation_period;
+
+	/* range 400-10000(Usec) default: 3000 */
+	u16 next_bt_lp_packet;
+
+	/* Deafult: worst case for BT DH5 traffic */
+	u16 wake_up_beacon;
+
+	/* range: 0-50000(Usec) default: 1050 */
+	u16 hp_dm_max_guard_time;
+
+	/*
+	 * This is to prevent both BT & WLAN antenna
+	 * starvation.
+	 * Range: 100-50000(Usec) default:2550
+	 */
+	u16 next_wlan_packet;
+
+	/* 0 -> shared antenna */
+	u8 antenna_type;
+
+	/*
+	 * 0 -> TI legacy
+	 * 1 -> Palau
+	 */
+	u8 signal_type;
+
+	/*
+	 * BT AFH status
+	 * 0 -> no AFH
+	 * 1 -> from dedicated GPIO
+	 * 2 -> AFH on (from host)
+	 */
+	u8 afh_leverage_on;
+
+	/*
+	 * The number of cycles during which no
+	 * TX will be sent after 1 cycle of RX
+	 * transaction in protective mode
+	 */
+	u8 quiet_cycle_num;
+
+	/*
+	 * The maximum number of CTSs that will
+	 * be sent for receiving RX packet in
+	 * protective mode
+	 */
+	u8 max_cts;
+
+	/*
+	 * The number of WLAN packets
+	 * transferred in common mode before
+	 * switching to BT.
+	 */
+	u8 wlan_packets_num;
+
+	/*
+	 * The number of BT packets
+	 * transferred in common mode before
+	 * switching to WLAN.
+	 */
+	u8 bt_packets_num;
+
+	/* range: 1-255  default: 5 */
+	u8 missed_rx_avalanche;
+
+	/* range: 0-1    default: 1 */
+	u8 wlan_elp_hp;
+
+	/* range: 0 - 15  default: 4 */
+	u8 bt_anti_starvation_cycles;
+
+	u8 ack_mode_dual_ant;
+
+	/*
+	 * Allow PA_SD assertion/de-assertion
+	 * during enabled BT activity.
+	 */
+	u8 pa_sd_enable;
+
+	/*
+	 * Enable/Disable PTA in auto mode:
+	 * Support Both Active & P.S modes
+	 */
+	u8 pta_auto_mode_enable;
+
+	/* range: 0 - 20  default: 1 */
+	u8 bt_hp_respected_num;
+} __attribute__ ((packed));
+
+#define CCA_THRSH_ENABLE_ENERGY_D       0x140A
+#define CCA_THRSH_DISABLE_ENERGY_D      0xFFEF
+
+struct acx_energy_detection {
+	struct acx_header header;
+
+	/* The RX Clear Channel Assessment threshold in the PHY */
+	u16 rx_cca_threshold;
+	u8 tx_energy_detection;
+	u8 pad;
+} __attribute__ ((packed));
+
+#define BCN_RX_TIMEOUT_DEF_VALUE        10000
+#define BROADCAST_RX_TIMEOUT_DEF_VALUE  20000
+#define RX_BROADCAST_IN_PS_DEF_VALUE    1
+#define CONSECUTIVE_PS_POLL_FAILURE_DEF 4
+
+struct acx_beacon_broadcast {
+	struct acx_header header;
+
+	u16 beacon_rx_timeout;
+	u16 broadcast_timeout;
+
+	/* Enables receiving of broadcast packets in PS mode */
+	u8 rx_broadcast_in_ps;
+
+	/* Consecutive PS Poll failures before updating the host */
+	u8 ps_poll_threshold;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+struct acx_event_mask {
+	struct acx_header header;
+
+	u32 event_mask;
+	u32 high_event_mask; /* Unused */
+} __attribute__ ((packed));
+
+#define CFG_RX_FCS		BIT(2)
+#define CFG_RX_ALL_GOOD		BIT(3)
+#define CFG_UNI_FILTER_EN	BIT(4)
+#define CFG_BSSID_FILTER_EN	BIT(5)
+#define CFG_MC_FILTER_EN	BIT(6)
+#define CFG_MC_ADDR0_EN		BIT(7)
+#define CFG_MC_ADDR1_EN		BIT(8)
+#define CFG_BC_REJECT_EN	BIT(9)
+#define CFG_SSID_FILTER_EN	BIT(10)
+#define CFG_RX_INT_FCS_ERROR	BIT(11)
+#define CFG_RX_INT_ENCRYPTED	BIT(12)
+#define CFG_RX_WR_RX_STATUS	BIT(13)
+#define CFG_RX_FILTER_NULTI	BIT(14)
+#define CFG_RX_RESERVE		BIT(15)
+#define CFG_RX_TIMESTAMP_TSF	BIT(16)
+
+#define CFG_RX_RSV_EN		BIT(0)
+#define CFG_RX_RCTS_ACK		BIT(1)
+#define CFG_RX_PRSP_EN		BIT(2)
+#define CFG_RX_PREQ_EN		BIT(3)
+#define CFG_RX_MGMT_EN		BIT(4)
+#define CFG_RX_FCS_ERROR	BIT(5)
+#define CFG_RX_DATA_EN		BIT(6)
+#define CFG_RX_CTL_EN		BIT(7)
+#define CFG_RX_CF_EN		BIT(8)
+#define CFG_RX_BCN_EN		BIT(9)
+#define CFG_RX_AUTH_EN		BIT(10)
+#define CFG_RX_ASSOC_EN		BIT(11)
+
+#define SCAN_PASSIVE		BIT(0)
+#define SCAN_5GHZ_BAND		BIT(1)
+#define SCAN_TRIGGERED		BIT(2)
+#define SCAN_PRIORITY_HIGH	BIT(3)
+
+struct acx_fw_gen_frame_rates {
+	struct acx_header header;
+
+	u8 tx_ctrl_frame_rate; /* RATE_* */
+	u8 tx_ctrl_frame_mod; /* CCK_* or PBCC_* */
+	u8 tx_mgt_frame_rate;
+	u8 tx_mgt_frame_mod;
+} __attribute__ ((packed));
+
+/* STA MAC */
+struct dot11_station_id {
+	struct acx_header header;
+
+	u8 mac[ETH_ALEN];
+	u8 pad[2];
+} __attribute__ ((packed));
+
+/* HW encryption keys */
+#define NUM_ACCESS_CATEGORIES_COPY 4
+#define MAX_KEY_SIZE 32
+
+/* When set, disable HW encryption */
+#define DF_ENCRYPTION_DISABLE      0x01
+/* When set, disable HW decryption */
+#define DF_SNIFF_MODE_ENABLE       0x80
+
+struct acx_feature_config {
+	struct acx_header header;
+
+	u32 options;
+	u32 data_flow_options;
+} __attribute__ ((packed));
+
+enum acx_key_action {
+	KEY_ADD_OR_REPLACE = 1,
+	KEY_REMOVE         = 2,
+	KEY_SET_ID         = 3,
+	MAX_KEY_ACTION     = 0xffff,
+};
+
+enum acx_key_type {
+	KEY_WEP_DEFAULT       = 0,
+	KEY_WEP_ADDR          = 1,
+	KEY_AES_GROUP         = 4,
+	KEY_AES_PAIRWISE      = 5,
+	KEY_WEP_GROUP         = 6,
+	KEY_TKIP_MIC_GROUP    = 10,
+	KEY_TKIP_MIC_PAIRWISE = 11,
+};
+
+/*
+ *
+ * key_type_e   key size    key format
+ * ----------   ---------   ----------
+ * 0x00         5, 13, 29   Key data
+ * 0x01         5, 13, 29   Key data
+ * 0x04         16          16 bytes of key data
+ * 0x05         16          16 bytes of key data
+ * 0x0a         32          16 bytes of TKIP key data
+ *                          8 bytes of RX MIC key data
+ *                          8 bytes of TX MIC key data
+ * 0x0b         32          16 bytes of TKIP key data
+ *                          8 bytes of RX MIC key data
+ *                          8 bytes of TX MIC key data
+ *
+ */
+
+struct acx_set_key {
+	/* Ignored for default WEP key */
+	u8 addr[ETH_ALEN];
+
+	/* key_action_e */
+	u16 key_action;
+
+	u16 reserved_1;
+
+	/* key size in bytes */
+	u8 key_size;
+
+	/* key_type_e */
+	u8 key_type;
+	u8 ssid_profile;
+
+	/*
+	 * TKIP, AES: frame's key id field.
+	 * For WEP default key: key id;
+	 */
+	u8 id;
+	u8 reserved_2[6];
+	u8 key[MAX_KEY_SIZE];
+	u16 ac_seq_num16[NUM_ACCESS_CATEGORIES_COPY];
+	u32 ac_seq_num32[NUM_ACCESS_CATEGORIES_COPY];
+} __attribute__ ((packed));
+
+struct acx_current_tx_power {
+	struct acx_header header;
+
+	u8  current_tx_power;
+	u8  padding[3];
+} __attribute__ ((packed));
+
+struct acx_dot11_default_key {
+	struct acx_header header;
+
+	u8 id;
+	u8 pad[3];
+} __attribute__ ((packed));
+
+struct acx_tsf_info {
+	struct acx_header header;
+
+	u32 current_tsf_msb;
+	u32 current_tsf_lsb;
+	u32 last_TBTT_msb;
+	u32 last_TBTT_lsb;
+	u8 last_dtim_count;
+	u8 pad[3];
+} __attribute__ ((packed));
+
+/* 802.11 PS */
+enum acx_ps_mode {
+	STATION_ACTIVE_MODE,
+	STATION_POWER_SAVE_MODE
+};
+
+struct acx_ps_params {
+	u8 ps_mode; /* STATION_* */
+	u8 send_null_data; /* Do we have to send NULL data packet ? */
+	u8 retries; /* Number of retires for the initial NULL data packet */
+
+	 /*
+	  * TUs during which the target stays awake after switching
+	  * to power save mode.
+	  */
+	u8 hang_over_period;
+	u16 null_data_rate;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+enum acx_wake_up_event {
+	WAKE_UP_EVENT_BEACON_BITMAP	= 0x01, /* Wake on every Beacon*/
+	WAKE_UP_EVENT_DTIM_BITMAP	= 0x02,	/* Wake on every DTIM*/
+	WAKE_UP_EVENT_N_DTIM_BITMAP	= 0x04, /* Wake on every Nth DTIM */
+	WAKE_UP_EVENT_N_BEACONS_BITMAP	= 0x08, /* Wake on every Nth Beacon */
+	WAKE_UP_EVENT_BITS_MASK		= 0x0F
+};
+
+struct acx_wake_up_condition {
+	struct acx_header header;
+
+	u8 wake_up_event; /* Only one bit can be set */
+	u8 listen_interval;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+struct acx_aid {
+	struct acx_header header;
+
+	/*
+	 * To be set when associated with an AP.
+	 */
+	u16 aid;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+enum acx_preamble_type {
+	ACX_PREAMBLE_LONG = 0,
+	ACX_PREAMBLE_SHORT = 1
+};
+
+struct acx_preamble {
+	struct acx_header header;
+	/*
+	 * When set, the WiLink transmits the frames with a short preamble and
+	 * when cleared, the WiLink transmits the frames with a long preamble.
+	 */
+	u8 preamble;
+	u8 padding[3];
+} __attribute__ ((packed));
+
+enum acx_ctsprotect_type {
+	CTSPROTECT_DISABLE = 0,
+	CTSPROTECT_ENABLE = 1
+};
+
+struct acx_ctsprotect {
+	struct acx_header header;
+	u8 ctsprotect;
+	u8 padding[3];
+} __attribute__ ((packed));
+
+struct acx_tx_statistics {
+	u32 internal_desc_overflow;
+}  __attribute__ ((packed));
+
+struct acx_rx_statistics {
+	u32 out_of_mem;
+	u32 hdr_overflow;
+	u32 hw_stuck;
+	u32 dropped;
+	u32 fcs_err;
+	u32 xfr_hint_trig;
+	u32 path_reset;
+	u32 reset_counter;
+} __attribute__ ((packed));
+
+struct acx_dma_statistics {
+	u32 rx_requested;
+	u32 rx_errors;
+	u32 tx_requested;
+	u32 tx_errors;
+}  __attribute__ ((packed));
+
+struct acx_isr_statistics {
+	/* host command complete */
+	u32 cmd_cmplt;
+
+	/* fiqisr() */
+	u32 fiqs;
+
+	/* (INT_STS_ND & INT_TRIG_RX_HEADER) */
+	u32 rx_headers;
+
+	/* (INT_STS_ND & INT_TRIG_RX_CMPLT) */
+	u32 rx_completes;
+
+	/* (INT_STS_ND & INT_TRIG_NO_RX_BUF) */
+	u32 rx_mem_overflow;
+
+	/* (INT_STS_ND & INT_TRIG_S_RX_RDY) */
+	u32 rx_rdys;
+
+	/* irqisr() */
+	u32 irqs;
+
+	/* (INT_STS_ND & INT_TRIG_TX_PROC) */
+	u32 tx_procs;
+
+	/* (INT_STS_ND & INT_TRIG_DECRYPT_DONE) */
+	u32 decrypt_done;
+
+	/* (INT_STS_ND & INT_TRIG_DMA0) */
+	u32 dma0_done;
+
+	/* (INT_STS_ND & INT_TRIG_DMA1) */
+	u32 dma1_done;
+
+	/* (INT_STS_ND & INT_TRIG_TX_EXC_CMPLT) */
+	u32 tx_exch_complete;
+
+	/* (INT_STS_ND & INT_TRIG_COMMAND) */
+	u32 commands;
+
+	/* (INT_STS_ND & INT_TRIG_RX_PROC) */
+	u32 rx_procs;
+
+	/* (INT_STS_ND & INT_TRIG_PM_802) */
+	u32 hw_pm_mode_changes;
+
+	/* (INT_STS_ND & INT_TRIG_ACKNOWLEDGE) */
+	u32 host_acknowledges;
+
+	/* (INT_STS_ND & INT_TRIG_PM_PCI) */
+	u32 pci_pm;
+
+	/* (INT_STS_ND & INT_TRIG_ACM_WAKEUP) */
+	u32 wakeups;
+
+	/* (INT_STS_ND & INT_TRIG_LOW_RSSI) */
+	u32 low_rssi;
+} __attribute__ ((packed));
+
+struct acx_wep_statistics {
+	/* WEP address keys configured */
+	u32 addr_key_count;
+
+	/* default keys configured */
+	u32 default_key_count;
+
+	u32 reserved;
+
+	/* number of times that WEP key not found on lookup */
+	u32 key_not_found;
+
+	/* number of times that WEP key decryption failed */
+	u32 decrypt_fail;
+
+	/* WEP packets decrypted */
+	u32 packets;
+
+	/* WEP decrypt interrupts */
+	u32 interrupt;
+} __attribute__ ((packed));
+
+#define ACX_MISSED_BEACONS_SPREAD 10
+
+struct acx_pwr_statistics {
+	/* the amount of enters into power save mode (both PD & ELP) */
+	u32 ps_enter;
+
+	/* the amount of enters into ELP mode */
+	u32 elp_enter;
+
+	/* the amount of missing beacon interrupts to the host */
+	u32 missing_bcns;
+
+	/* the amount of wake on host-access times */
+	u32 wake_on_host;
+
+	/* the amount of wake on timer-expire */
+	u32 wake_on_timer_exp;
+
+	/* the number of packets that were transmitted with PS bit set */
+	u32 tx_with_ps;
+
+	/* the number of packets that were transmitted with PS bit clear */
+	u32 tx_without_ps;
+
+	/* the number of received beacons */
+	u32 rcvd_beacons;
+
+	/* the number of entering into PowerOn (power save off) */
+	u32 power_save_off;
+
+	/* the number of entries into power save mode */
+	u16 enable_ps;
+
+	/*
+	 * the number of exits from power save, not including failed PS
+	 * transitions
+	 */
+	u16 disable_ps;
+
+	/*
+	 * the number of times the TSF counter was adjusted because
+	 * of drift
+	 */
+	u32 fix_tsf_ps;
+
+	/* Gives statistics about the spread continuous missed beacons.
+	 * The 16 LSB are dedicated for the PS mode.
+	 * The 16 MSB are dedicated for the PS mode.
+	 * cont_miss_bcns_spread[0] - single missed beacon.
+	 * cont_miss_bcns_spread[1] - two continuous missed beacons.
+	 * cont_miss_bcns_spread[2] - three continuous missed beacons.
+	 * ...
+	 * cont_miss_bcns_spread[9] - ten and more continuous missed beacons.
+	*/
+	u32 cont_miss_bcns_spread[ACX_MISSED_BEACONS_SPREAD];
+
+	/* the number of beacons in awake mode */
+	u32 rcvd_awake_beacons;
+} __attribute__ ((packed));
+
+struct acx_mic_statistics {
+	u32 rx_pkts;
+	u32 calc_failure;
+} __attribute__ ((packed));
+
+struct acx_aes_statistics {
+	u32 encrypt_fail;
+	u32 decrypt_fail;
+	u32 encrypt_packets;
+	u32 decrypt_packets;
+	u32 encrypt_interrupt;
+	u32 decrypt_interrupt;
+} __attribute__ ((packed));
+
+struct acx_event_statistics {
+	u32 heart_beat;
+	u32 calibration;
+	u32 rx_mismatch;
+	u32 rx_mem_empty;
+	u32 rx_pool;
+	u32 oom_late;
+	u32 phy_transmit_error;
+	u32 tx_stuck;
+} __attribute__ ((packed));
+
+struct acx_ps_statistics {
+	u32 pspoll_timeouts;
+	u32 upsd_timeouts;
+	u32 upsd_max_sptime;
+	u32 upsd_max_apturn;
+	u32 pspoll_max_apturn;
+	u32 pspoll_utilization;
+	u32 upsd_utilization;
+} __attribute__ ((packed));
+
+struct acx_rxpipe_statistics {
+	u32 rx_prep_beacon_drop;
+	u32 descr_host_int_trig_rx_data;
+	u32 beacon_buffer_thres_host_int_trig_rx_data;
+	u32 missed_beacon_host_int_trig_rx_data;
+	u32 tx_xfr_host_int_trig_rx_data;
+} __attribute__ ((packed));
+
+struct acx_statistics {
+	struct acx_header header;
+
+	struct acx_tx_statistics tx;
+	struct acx_rx_statistics rx;
+	struct acx_dma_statistics dma;
+	struct acx_isr_statistics isr;
+	struct acx_wep_statistics wep;
+	struct acx_pwr_statistics pwr;
+	struct acx_aes_statistics aes;
+	struct acx_mic_statistics mic;
+	struct acx_event_statistics event;
+	struct acx_ps_statistics ps;
+	struct acx_rxpipe_statistics rxpipe;
+} __attribute__ ((packed));
+
+enum {
+	ACX_WAKE_UP_CONDITIONS      = 0x0002,
+	ACX_MEM_CFG                 = 0x0003,
+	ACX_SLOT                    = 0x0004,
+	ACX_QUEUE_HEAD              = 0x0005, /* for MASTER mode only */
+	ACX_AC_CFG                  = 0x0007,
+	ACX_MEM_MAP                 = 0x0008,
+	ACX_AID                     = 0x000A,
+	ACX_RADIO_PARAM             = 0x000B, /* Not used */
+	ACX_CFG                     = 0x000C, /* Not used */
+	ACX_FW_REV                  = 0x000D,
+	ACX_MEDIUM_USAGE            = 0x000F,
+	ACX_RX_CFG                  = 0x0010,
+	ACX_TX_QUEUE_CFG            = 0x0011, /* FIXME: only used by wl1251 */
+	ACX_BSS_IN_PS               = 0x0012, /* for AP only */
+	ACX_STATISTICS              = 0x0013, /* Debug API */
+	ACX_FEATURE_CFG             = 0x0015,
+	ACX_MISC_CFG                = 0x0017, /* Not used */
+	ACX_TID_CFG                 = 0x001A,
+	ACX_BEACON_FILTER_OPT       = 0x001F,
+	ACX_LOW_RSSI                = 0x0020,
+	ACX_NOISE_HIST              = 0x0021,
+	ACX_HDK_VERSION             = 0x0022, /* ??? */
+	ACX_PD_THRESHOLD            = 0x0023,
+	ACX_DATA_PATH_PARAMS        = 0x0024, /* WO */
+	ACX_DATA_PATH_RESP_PARAMS   = 0x0024, /* RO */
+	ACX_CCA_THRESHOLD           = 0x0025,
+	ACX_EVENT_MBOX_MASK         = 0x0026,
+#ifdef FW_RUNNING_AS_AP
+	ACX_DTIM_PERIOD             = 0x0027, /* for AP only */
+#else
+	ACX_WR_TBTT_AND_DTIM        = 0x0027, /* STA only */
+#endif
+	ACX_ACI_OPTION_CFG          = 0x0029, /* OBSOLETE (for 1251)*/
+	ACX_GPIO_CFG                = 0x002A, /* Not used */
+	ACX_GPIO_SET                = 0x002B, /* Not used */
+	ACX_PM_CFG                  = 0x002C, /* To Be Documented */
+	ACX_CONN_MONIT_PARAMS       = 0x002D,
+	ACX_AVERAGE_RSSI            = 0x002E, /* Not used */
+	ACX_CONS_TX_FAILURE         = 0x002F,
+	ACX_BCN_DTIM_OPTIONS        = 0x0031,
+	ACX_SG_ENABLE               = 0x0032,
+	ACX_SG_CFG                  = 0x0033,
+	ACX_ANTENNA_DIVERSITY_CFG   = 0x0035, /* To Be Documented */
+	ACX_LOW_SNR		    = 0x0037, /* To Be Documented */
+	ACX_BEACON_FILTER_TABLE     = 0x0038,
+	ACX_ARP_IP_FILTER           = 0x0039,
+	ACX_ROAMING_STATISTICS_TBL  = 0x003B,
+	ACX_RATE_POLICY             = 0x003D,
+	ACX_CTS_PROTECTION          = 0x003E,
+	ACX_SLEEP_AUTH              = 0x003F,
+	ACX_PREAMBLE_TYPE	    = 0x0040,
+	ACX_ERROR_CNT               = 0x0041,
+	ACX_FW_GEN_FRAME_RATES      = 0x0042,
+	ACX_IBSS_FILTER		    = 0x0044,
+	ACX_SERVICE_PERIOD_TIMEOUT  = 0x0045,
+	ACX_TSF_INFO                = 0x0046,
+	ACX_CONFIG_PS_WMM           = 0x0049,
+	ACX_ENABLE_RX_DATA_FILTER   = 0x004A,
+	ACX_SET_RX_DATA_FILTER      = 0x004B,
+	ACX_GET_DATA_FILTER_STATISTICS = 0x004C,
+	ACX_POWER_LEVEL_TABLE       = 0x004D,
+	ACX_BET_ENABLE              = 0x0050,
+	DOT11_STATION_ID            = 0x1001,
+	DOT11_RX_MSDU_LIFE_TIME     = 0x1004,
+	DOT11_CUR_TX_PWR            = 0x100D,
+	DOT11_DEFAULT_KEY           = 0x1010,
+	DOT11_RX_DOT11_MODE         = 0x1012,
+	DOT11_RTS_THRESHOLD         = 0x1013,
+	DOT11_GROUP_ADDRESS_TBL     = 0x1014,
+
+	MAX_DOT11_IE = DOT11_GROUP_ADDRESS_TBL,
+
+	MAX_IE = 0xFFFF
+};
+
+
+int wl12xx_acx_frame_rates(struct wl12xx *wl, u8 ctrl_rate, u8 ctrl_mod,
+			   u8 mgt_rate, u8 mgt_mod);
+int wl12xx_acx_station_id(struct wl12xx *wl);
+int wl12xx_acx_default_key(struct wl12xx *wl, u8 key_id);
+int wl12xx_acx_wake_up_conditions(struct wl12xx *wl, u8 listen_interval);
+int wl12xx_acx_sleep_auth(struct wl12xx *wl, u8 sleep_auth);
+int wl12xx_acx_fw_version(struct wl12xx *wl, char *buf, size_t len);
+int wl12xx_acx_tx_power(struct wl12xx *wl, int power);
+int wl12xx_acx_feature_cfg(struct wl12xx *wl);
+int wl12xx_acx_mem_map(struct wl12xx *wl, void *mem_map, size_t len);
+int wl12xx_acx_data_path_params(struct wl12xx *wl,
+				struct acx_data_path_params_resp *data_path);
+int wl12xx_acx_rx_msdu_life_time(struct wl12xx *wl, u32 life_time);
+int wl12xx_acx_rx_config(struct wl12xx *wl, u32 config, u32 filter);
+int wl12xx_acx_pd_threshold(struct wl12xx *wl);
+int wl12xx_acx_slot(struct wl12xx *wl, enum acx_slot_type slot_time);
+int wl12xx_acx_group_address_tbl(struct wl12xx *wl);
+int wl12xx_acx_service_period_timeout(struct wl12xx *wl);
+int wl12xx_acx_rts_threshold(struct wl12xx *wl, u16 rts_threshold);
+int wl12xx_acx_beacon_filter_opt(struct wl12xx *wl);
+int wl12xx_acx_beacon_filter_table(struct wl12xx *wl);
+int wl12xx_acx_sg_enable(struct wl12xx *wl);
+int wl12xx_acx_sg_cfg(struct wl12xx *wl);
+int wl12xx_acx_cca_threshold(struct wl12xx *wl);
+int wl12xx_acx_bcn_dtim_options(struct wl12xx *wl);
+int wl12xx_acx_aid(struct wl12xx *wl, u16 aid);
+int wl12xx_acx_event_mbox_mask(struct wl12xx *wl, u32 event_mask);
+int wl12xx_acx_set_preamble(struct wl12xx *wl, enum acx_preamble_type preamble);
+int wl12xx_acx_cts_protect(struct wl12xx *wl,
+			    enum acx_ctsprotect_type ctsprotect);
+int wl12xx_acx_statistics(struct wl12xx *wl, struct acx_statistics *stats);
+
+#endif /* __WL12XX_ACX_H__ */

drivers/net/wireless/wl12xx/boot.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/gpio.h>
+
+#include "reg.h"
+#include "boot.h"
+#include "spi.h"
+#include "event.h"
+
+static void wl12xx_boot_enable_interrupts(struct wl12xx *wl)
+{
+	enable_irq(wl->irq);
+}
+
+void wl12xx_boot_target_enable_interrupts(struct wl12xx *wl)
+{
+	wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask));
+	wl12xx_reg_write32(wl, HI_CFG, HI_CFG_DEF_VAL);
+}
+
+int wl12xx_boot_soft_reset(struct wl12xx *wl)
+{
+	unsigned long timeout;
+	u32 boot_data;
+
+	/* perform soft reset */
+	wl12xx_reg_write32(wl, ACX_REG_SLV_SOFT_RESET, ACX_SLV_SOFT_RESET_BIT);
+
+	/* SOFT_RESET is self clearing */
+	timeout = jiffies + usecs_to_jiffies(SOFT_RESET_MAX_TIME);
+	while (1) {
+		boot_data = wl12xx_reg_read32(wl, ACX_REG_SLV_SOFT_RESET);
+		wl12xx_debug(DEBUG_BOOT, "soft reset bootdata 0x%x", boot_data);
+		if ((boot_data & ACX_SLV_SOFT_RESET_BIT) == 0)
+			break;
+
+		if (time_after(jiffies, timeout)) {
+			/* 1.2 check pWhalBus->uSelfClearTime if the
+			 * timeout was reached */
+			wl12xx_error("soft reset timeout");
+			return -1;
+		}
+
+		udelay(SOFT_RESET_STALL_TIME);
+	}
+
+	/* disable Rx/Tx */
+	wl12xx_reg_write32(wl, ENABLE, 0x0);
+
+	/* disable auto calibration on start*/
+	wl12xx_reg_write32(wl, SPARE_A2, 0xffff);
+
+	return 0;
+}
+
+int wl12xx_boot_init_seq(struct wl12xx *wl)
+{
+	u32 scr_pad6, init_data, tmp, elp_cmd, ref_freq;
+
+	/*
+	 * col #1: INTEGER_DIVIDER
+	 * col #2: FRACTIONAL_DIVIDER
+	 * col #3: ATTN_BB
+	 * col #4: ALPHA_BB
+	 * col #5: STOP_TIME_BB
+	 * col #6: BB_PLL_LOOP_FILTER
+	 */
+	static const u32 LUT[REF_FREQ_NUM][LUT_PARAM_NUM] = {
+
+		{   83, 87381,  0xB, 5, 0xF00,  3}, /* REF_FREQ_19_2*/
+		{   61, 141154, 0xB, 5, 0x1450, 2}, /* REF_FREQ_26_0*/
+		{   41, 174763, 0xC, 6, 0x2D00, 1}, /* REF_FREQ_38_4*/
+		{   40, 0,      0xC, 6, 0x2EE0, 1}, /* REF_FREQ_40_0*/
+		{   47, 162280, 0xC, 6, 0x2760, 1}  /* REF_FREQ_33_6        */
+	};
+
+	/* read NVS params */
+	scr_pad6 = wl12xx_reg_read32(wl, SCR_PAD6);
+	wl12xx_debug(DEBUG_BOOT, "scr_pad6 0x%x", scr_pad6);
+
+	/* read ELP_CMD */
+	elp_cmd = wl12xx_reg_read32(wl, ELP_CMD);
+	wl12xx_debug(DEBUG_BOOT, "elp_cmd 0x%x", elp_cmd);
+
+	/* set the BB calibration time to be 300 usec (PLL_CAL_TIME) */
+	ref_freq = scr_pad6 & 0x000000FF;
+	wl12xx_debug(DEBUG_BOOT, "ref_freq 0x%x", ref_freq);
+
+	wl12xx_reg_write32(wl, PLL_CAL_TIME, 0x9);
+
+	/*
+	 * PG 1.2: set the clock buffer time to be 210 usec (CLK_BUF_TIME)
+	 */
+	wl12xx_reg_write32(wl, CLK_BUF_TIME, 0x6);
+
+	/*
+	 * set the clock detect feature to work in the restart wu procedure
+	 * (ELP_CFG_MODE[14]) and Select the clock source type
+	 * (ELP_CFG_MODE[13:12])
+	 */
+	tmp = ((scr_pad6 & 0x0000FF00) << 4) | 0x00004000;
+	wl12xx_reg_write32(wl, ELP_CFG_MODE, tmp);
+
+	/* PG 1.2: enable the BB PLL fix. Enable the PLL_LIMP_CLK_EN_CMD */
+	elp_cmd |= 0x00000040;
+	wl12xx_reg_write32(wl, ELP_CMD, elp_cmd);
+
+	/* PG 1.2: Set the BB PLL stable time to be 1000usec
+	 * (PLL_STABLE_TIME) */
+	wl12xx_reg_write32(wl, CFG_PLL_SYNC_CNT, 0x20);
+
+	/* PG 1.2: read clock request time */
+	init_data = wl12xx_reg_read32(wl, CLK_REQ_TIME);
+
+	/*
+	 * PG 1.2: set the clock request time to be ref_clk_settling_time -
+	 * 1ms = 4ms
+	 */
+	if (init_data > 0x21)
+		tmp = init_data - 0x21;
+	else
+		tmp = 0;
+	wl12xx_reg_write32(wl, CLK_REQ_TIME, tmp);
+
+	/* set BB PLL configurations in RF AFE */
+	wl12xx_reg_write32(wl, 0x003058cc, 0x4B5);
+
+	/* set RF_AFE_REG_5 */
+	wl12xx_reg_write32(wl, 0x003058d4, 0x50);
+
+	/* set RF_AFE_CTRL_REG_2 */
+	wl12xx_reg_write32(wl, 0x00305948, 0x11c001);
+
+	/*
+	 * change RF PLL and BB PLL divider for VCO clock and adjust VCO
+	 * bais current(RF_AFE_REG_13)
+	 */
+	wl12xx_reg_write32(wl, 0x003058f4, 0x1e);
+
+	/* set BB PLL configurations */
+	tmp = LUT[ref_freq][LUT_PARAM_INTEGER_DIVIDER] | 0x00017000;
+	wl12xx_reg_write32(wl, 0x00305840, tmp);
+
+	/* set fractional divider according to Appendix C-BB PLL
+	 * Calculations
+	 */
+	tmp = LUT[ref_freq][LUT_PARAM_FRACTIONAL_DIVIDER];
+	wl12xx_reg_write32(wl, 0x00305844, tmp);
+
+	/* set the initial data for the sigma delta */
+	wl12xx_reg_write32(wl, 0x00305848, 0x3039);
+
+	/*
+	 * set the accumulator attenuation value, calibration loop1
+	 * (alpha), calibration loop2 (beta), calibration loop3 (gamma) and
+	 * the VCO gain
+	 */
+	tmp = (LUT[ref_freq][LUT_PARAM_ATTN_BB] << 16) |
+		(LUT[ref_freq][LUT_PARAM_ALPHA_BB] << 12) | 0x1;
+	wl12xx_reg_write32(wl, 0x00305854, tmp);
+
+	/*
+	 * set the calibration stop time after holdoff time expires and set
+	 * settling time HOLD_OFF_TIME_BB
+	 */
+	tmp = LUT[ref_freq][LUT_PARAM_STOP_TIME_BB] | 0x000A0000;
+	wl12xx_reg_write32(wl, 0x00305858, tmp);
+
+	/*
+	 * set BB PLL Loop filter capacitor3- BB_C3[2:0] and set BB PLL
+	 * constant leakage current to linearize PFD to 0uA -
+	 * BB_ILOOPF[7:3]
+	 */
+	tmp = LUT[ref_freq][LUT_PARAM_BB_PLL_LOOP_FILTER] | 0x00000030;
+	wl12xx_reg_write32(wl, 0x003058f8, tmp);
+
+	/*
+	 * set regulator output voltage for n divider to
+	 * 1.35-BB_REFDIV[1:0], set charge pump current- BB_CPGAIN[4:2],
+	 * set BB PLL Loop filter capacitor2- BB_C2[7:5], set gain of BB
+	 * PLL auto-call to normal mode- BB_CALGAIN_3DB[8]
+	 */
+	wl12xx_reg_write32(wl, 0x003058f0, 0x29);
+
+	/* enable restart wakeup sequence (ELP_CMD[0]) */
+	wl12xx_reg_write32(wl, ELP_CMD, elp_cmd | 0x1);
+
+	/* restart sequence completed */
+	udelay(2000);
+
+	return 0;
+}
+
+int wl12xx_boot_run_firmware(struct wl12xx *wl)
+{
+	int loop, ret;
+	u32 chip_id, interrupt;
+
+	wl->chip.op_set_ecpu_ctrl(wl, ECPU_CONTROL_HALT);
+
+	chip_id = wl12xx_reg_read32(wl, CHIP_ID_B);
+
+	wl12xx_debug(DEBUG_BOOT, "chip id after firmware boot: 0x%x", chip_id);
+
+	if (chip_id != wl->chip.id) {
+		wl12xx_error("chip id doesn't match after firmware boot");
+		return -EIO;
+	}
+
+	/* wait for init to complete */
+	loop = 0;
+	while (loop++ < INIT_LOOP) {
+		udelay(INIT_LOOP_DELAY);
+		interrupt = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
+
+		if (interrupt == 0xffffffff) {
+			wl12xx_error("error reading hardware complete "
+				     "init indication");
+			return -EIO;
+		}
+		/* check that ACX_INTR_INIT_COMPLETE is enabled */
+		else if (interrupt & wl->chip.intr_init_complete) {
+			wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
+					   wl->chip.intr_init_complete);
+			break;
+		}
+	}
+
+	if (loop >= INIT_LOOP) {
+		wl12xx_error("timeout waiting for the hardware to "
+			     "complete initialization");
+		return -EIO;
+	}
+
+	/* get hardware config command mail box */
+	wl->cmd_box_addr = wl12xx_reg_read32(wl, REG_COMMAND_MAILBOX_PTR);
+
+	/* get hardware config event mail box */
+	wl->event_box_addr = wl12xx_reg_read32(wl, REG_EVENT_MAILBOX_PTR);
+
+	/* set the working partition to its "running" mode offset */
+	wl12xx_set_partition(wl,
+			     wl->chip.p_table[PART_WORK].mem.start,
+			     wl->chip.p_table[PART_WORK].mem.size,
+			     wl->chip.p_table[PART_WORK].reg.start,
+			     wl->chip.p_table[PART_WORK].reg.size);
+
+	wl12xx_debug(DEBUG_MAILBOX, "cmd_box_addr 0x%x event_box_addr 0x%x",
+		     wl->cmd_box_addr, wl->event_box_addr);
+
+	/*
+	 * in case of full asynchronous mode the firmware event must be
+	 * ready to receive event from the command mailbox
+	 */
+
+	/* enable gpio interrupts */
+	wl12xx_boot_enable_interrupts(wl);
+
+	wl->chip.op_target_enable_interrupts(wl);
+
+	/* unmask all mbox events  */
+	wl->event_mask = 0xffffffff;
+
+	ret = wl12xx_event_unmask(wl);
+	if (ret < 0) {
+		wl12xx_error("EVENT mask setting failed");
+		return ret;
+	}
+
+	wl12xx_event_mbox_config(wl);
+
+	/* firmware startup completed */
+	return 0;
+}

drivers/net/wireless/wl12xx/boot.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __BOOT_H__
+#define __BOOT_H__
+
+#include "wl12xx.h"
+
+int wl12xx_boot_soft_reset(struct wl12xx *wl);
+int wl12xx_boot_init_seq(struct wl12xx *wl);
+int wl12xx_boot_run_firmware(struct wl12xx *wl);
+void wl12xx_boot_target_enable_interrupts(struct wl12xx *wl);
+
+/* number of times we try to read the INIT interrupt */
+#define INIT_LOOP 20000
+
+/* delay between retries */
+#define INIT_LOOP_DELAY 50
+
+#endif

drivers/net/wireless/wl12xx/cmd.c

+#include "cmd.h"
+
+#include <linux/module.h>
+#include <linux/crc7.h>
+#include <linux/spi/spi.h>
+
+#include "wl12xx.h"
+#include "wl12xx_80211.h"
+#include "reg.h"
+#include "spi.h"
+#include "ps.h"
+
+int wl12xx_cmd_send(struct wl12xx *wl, u16 type, void *buf, size_t buf_len)
+{
+	struct wl12xx_command cmd;
+	unsigned long timeout;
+	size_t cmd_len;
+	u32 intr;
+	int ret = 0;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.id = type;
+	cmd.status = 0;
+	memcpy(cmd.parameters, buf, buf_len);
+	cmd_len = ALIGN(buf_len, 4) + CMDMBOX_HEADER_LEN;
+
+	wl12xx_ps_elp_wakeup(wl);
+
+	wl12xx_spi_mem_write(wl, wl->cmd_box_addr, &cmd, cmd_len);
+
+	wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
+
+	timeout = jiffies + msecs_to_jiffies(WL12XX_COMMAND_TIMEOUT);
+
+	intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
+	while (!(intr & wl->chip.intr_cmd_complete)) {
+		if (time_after(jiffies, timeout)) {
+			wl12xx_error("command complete timeout");
+			ret = -ETIMEDOUT;
+			goto out;
+		}
+
+		msleep(1);
+
+		intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
+	}
+
+	wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
+			   wl->chip.intr_cmd_complete);
+
+out:
+	wl12xx_ps_elp_sleep(wl);
+
+	return ret;
+}
+
+int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer)
+{
+	int ret;
+
+	wl12xx_debug(DEBUG_CMD, "cmd test");
+
+	ret = wl12xx_cmd_send(wl, CMD_TEST, buf, buf_len);
+	if (ret < 0) {
+		wl12xx_warning("TEST command failed");
+		return ret;
+	}
+
+	if (answer) {
+		struct wl12xx_command *cmd_answer;
+
+		/*
+		 * The test command got in, we can read the answer.
+		 * The answer would be a wl12xx_command, where the
+		 * parameter array contains the actual answer.
+		 */
+
+		wl12xx_ps_elp_wakeup(wl);
+
+		wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
+
+		wl12xx_ps_elp_sleep(wl);
+
+		cmd_answer = buf;
+		if (cmd_answer->status != CMD_STATUS_SUCCESS)
+			wl12xx_error("TEST command answer error: %d",
+				     cmd_answer->status);
+	}
+
+	return 0;
+}
+
+
+int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 ie_id, u16 ie_len,
+			   void *answer)
+{
+	struct wl12xx_command *cmd;
+	struct acx_header header;
+	int ret;
+
+	wl12xx_debug(DEBUG_CMD, "cmd interrogate");
+
+	header.id = ie_id;
+	header.len = ie_len - sizeof(header);
+
+	ret = wl12xx_cmd_send(wl, CMD_INTERROGATE, &header, sizeof(header));
+	if (ret < 0) {
+		wl12xx_error("INTERROGATE command failed");
+		return ret;
+	}
+
+	wl12xx_ps_elp_wakeup(wl);
+
+	/* the interrogate command got in, we can read the answer */
+	wl12xx_spi_mem_read(wl, wl->cmd_box_addr, answer,
+			    CMDMBOX_HEADER_LEN + ie_len);
+
+	wl12xx_ps_elp_sleep(wl);
+
+	cmd = answer;
+	if (cmd->status != CMD_STATUS_SUCCESS)
+		wl12xx_error("INTERROGATE command error: %d",
+			     cmd->status);
+
+	return 0;
+
+}
+
+int wl12xx_cmd_configure(struct wl12xx *wl, void *ie, int ie_len)
+{
+	int ret;
+
+	wl12xx_debug(DEBUG_CMD, "cmd configure");
+
+	ret = wl12xx_cmd_send(wl, CMD_CONFIGURE, ie,
+			      ie_len);
+	if (ret < 0) {
+		wl12xx_warning("CONFIGURE command NOK");
+		return ret;
+	}
+
+	return 0;
+
+}
+
+int wl12xx_cmd_vbm(struct wl12xx *wl, u8 identity,
+		   void *bitmap, u16 bitmap_len, u8 bitmap_control)
+{
+	struct vbm_update_request vbm;
+	int ret;
+
+	wl12xx_debug(DEBUG_CMD, "cmd vbm");
+
+	/* Count and period will be filled by the target */
+	vbm.tim.bitmap_ctrl = bitmap_control;
+	if (bitmap_len > PARTIAL_VBM_MAX) {
+		wl12xx_warning("cmd vbm len is %d B, truncating to %d",
+			       bitmap_len, PARTIAL_VBM_MAX);
+		bitmap_len = PARTIAL_VBM_MAX;
+	}
+	memcpy(vbm.tim.pvb_field, bitmap, bitmap_len);
+	vbm.tim.identity = identity;
+	vbm.tim.length = bitmap_len + 3;
+
+	vbm.len = cpu_to_le16(bitmap_len + 5);
+
+	ret = wl12xx_cmd_send(wl, CMD_VBM, &vbm, sizeof(vbm));
+	if (ret < 0) {
+		wl12xx_error("VBM command failed");
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_cmd_data_path(struct wl12xx *wl, u8 channel, u8 enable)
+{
+	int ret;
+	u16 cmd_rx, cmd_tx;
+
+	wl12xx_debug(DEBUG_CMD, "cmd data path");
+
+	if (enable) {
+		cmd_rx = CMD_ENABLE_RX;
+		cmd_tx = CMD_ENABLE_TX;
+	} else {
+		cmd_rx = CMD_DISABLE_RX;
+		cmd_tx = CMD_DISABLE_TX;
+	}
+
+	ret = wl12xx_cmd_send(wl, cmd_rx, &channel, sizeof(channel));
+	if (ret < 0) {
+		wl12xx_error("rx %s cmd for channel %d failed",
+			     enable ? "start" : "stop", channel);
+		return ret;
+	}
+
+	wl12xx_debug(DEBUG_BOOT, "rx %s cmd channel %d",
+		     enable ? "start" : "stop", channel);
+
+	ret = wl12xx_cmd_send(wl, cmd_tx, &channel, sizeof(channel));
+	if (ret < 0) {
+		wl12xx_error("tx %s cmd for channel %d failed",
+			     enable ? "start" : "stop", channel);
+		return ret;
+	}
+
+	wl12xx_debug(DEBUG_BOOT, "tx %s cmd channel %d",
+		     enable ? "start" : "stop", channel);
+
+	return 0;
+}
+
+int wl12xx_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval,
+		    u16 beacon_interval, u8 wait)
+{
+	unsigned long timeout;
+	struct cmd_join join = {};
+	int ret, i;
+	u8 *bssid;
+
+	/* FIXME: this should be in main.c */
+	ret = wl12xx_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE,
+				     DEFAULT_HW_GEN_MODULATION_TYPE,
+				     wl->tx_mgmt_frm_rate,
+				     wl->tx_mgmt_frm_mod);
+	if (ret < 0)
+		return ret;
+
+	wl12xx_debug(DEBUG_CMD, "cmd join");
+
+	/* Reverse order BSSID */
+	bssid = (u8 *)&join.bssid_lsb;
+	for (i = 0; i < ETH_ALEN; i++)
+		bssid[i] = wl->bssid[ETH_ALEN - i - 1];
+
+	join.rx_config_options = wl->rx_config;
+	join.rx_filter_options = wl->rx_filter;
+
+	join.basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
+		RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
+
+	join.beacon_interval = beacon_interval;
+	join.dtim_interval = dtim_interval;
+	join.bss_type = bss_type;
+	join.channel = wl->channel;
+	join.ctrl = JOIN_CMD_CTRL_TX_FLUSH;
+
+	ret = wl12xx_cmd_send(wl, CMD_START_JOIN, &join, sizeof(join));
+	if (ret < 0) {
+		wl12xx_error("failed to initiate cmd join");
+		return ret;
+	}
+
+	timeout = msecs_to_jiffies(JOIN_TIMEOUT);
+
+	/*
+	 * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
+	 * simplify locking we just sleep instead, for now
+	 */
+	if (wait)
+		msleep(10);
+
+	return 0;
+}
+
+int wl12xx_cmd_ps_mode(struct wl12xx *wl, u8 ps_mode)
+{
+	int ret;
+	struct acx_ps_params ps_params;
+
+	/* FIXME: this should be in ps.c */
+	ret = wl12xx_acx_wake_up_conditions(wl, wl->listen_int);
+	if (ret < 0) {
+		wl12xx_error("Couldnt set wake up conditions");
+		return ret;
+	}
+
+	wl12xx_debug(DEBUG_CMD, "cmd set ps mode");
+
+	ps_params.ps_mode = ps_mode;
+	ps_params.send_null_data = 1;
+	ps_params.retries = 5;
+	ps_params.hang_over_period = 128;
+	ps_params.null_data_rate = 1; /* 1 Mbps */
+
+	ret = wl12xx_cmd_send(wl, CMD_SET_PS_MODE, &ps_params,
+			      sizeof(ps_params));
+	if (ret < 0) {
+		wl12xx_error("cmd set_ps_mode failed");
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_cmd_read_memory(struct wl12xx *wl, u32 addr, u32 len, void *answer)
+{
+	struct cmd_read_write_memory mem_cmd, *mem_answer;
+	struct wl12xx_command cmd;
+	int ret;
+
+	wl12xx_debug(DEBUG_CMD, "cmd read memory");
+
+	memset(&mem_cmd, 0, sizeof(mem_cmd));
+	mem_cmd.addr = addr;
+	mem_cmd.size = len;
+
+	ret = wl12xx_cmd_send(wl, CMD_READ_MEMORY, &mem_cmd, sizeof(mem_cmd));
+	if (ret < 0) {
+		wl12xx_error("read memory command failed: %d", ret);
+		return ret;
+	}
+
+	/* the read command got in, we can now read the answer */
+	wl12xx_spi_mem_read(wl, wl->cmd_box_addr, &cmd,
+			    CMDMBOX_HEADER_LEN + sizeof(mem_cmd));
+
+	if (cmd.status != CMD_STATUS_SUCCESS)
+		wl12xx_error("error in read command result: %d", cmd.status);
+
+	mem_answer = (struct cmd_read_write_memory *) cmd.parameters;
+	memcpy(answer, mem_answer->value, len);
+
+	return 0;
+}
+
+int wl12xx_cmd_template_set(struct wl12xx *wl, u16 cmd_id,
+			    void *buf, size_t buf_len)
+{
+	struct wl12xx_cmd_packet_template template;
+	int ret;
+
+	wl12xx_debug(DEBUG_CMD, "cmd template %d", cmd_id);
+
+	memset(&template, 0, sizeof(template));
+
+	WARN_ON(buf_len > WL12XX_MAX_TEMPLATE_SIZE);
+	buf_len = min_t(size_t, buf_len, WL12XX_MAX_TEMPLATE_SIZE);
+	template.size = cpu_to_le16(buf_len);
+
+	if (buf)
+		memcpy(template.template, buf, buf_len);
+
+	ret = wl12xx_cmd_send(wl, cmd_id, &template,
+			      sizeof(template.size) + buf_len);
+	if (ret < 0) {
+		wl12xx_warning("cmd set_template failed: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}

drivers/net/wireless/wl12xx/cmd.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_CMD_H__
+#define __WL12XX_CMD_H__
+
+#include "wl12xx.h"
+
+int wl12xx_cmd_send(struct wl12xx *wl, u16 type, void *buf, size_t buf_len);
+int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer);
+int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 ie_id, u16 ie_len,
+			   void *answer);
+int wl12xx_cmd_configure(struct wl12xx *wl, void *ie, int ie_len);
+int wl12xx_cmd_vbm(struct wl12xx *wl, u8 identity,
+		   void *bitmap, u16 bitmap_len, u8 bitmap_control);
+int wl12xx_cmd_data_path(struct wl12xx *wl, u8 channel, u8 enable);
+int wl12xx_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval,
+		    u16 beacon_interval, u8 wait);
+int wl12xx_cmd_ps_mode(struct wl12xx *wl, u8 ps_mode);
+int wl12xx_cmd_read_memory(struct wl12xx *wl, u32 addr, u32 len, void *answer);
+int wl12xx_cmd_template_set(struct wl12xx *wl, u16 cmd_id,
+			    void *buf, size_t buf_len);
+
+/* unit ms */
+#define WL12XX_COMMAND_TIMEOUT 2000
+
+#define WL12XX_MAX_TEMPLATE_SIZE 300
+
+struct wl12xx_cmd_packet_template {
+	__le16 size;
+	u8 template[WL12XX_MAX_TEMPLATE_SIZE];
+} __attribute__ ((packed));
+
+enum wl12xx_commands {
+	CMD_RESET           = 0,
+	CMD_INTERROGATE     = 1,    /*use this to read information elements*/
+	CMD_CONFIGURE       = 2,    /*use this to write information elements*/
+	CMD_ENABLE_RX       = 3,
+	CMD_ENABLE_TX       = 4,
+	CMD_DISABLE_RX      = 5,
+	CMD_DISABLE_TX      = 6,
+	CMD_SCAN            = 8,
+	CMD_STOP_SCAN       = 9,
+	CMD_VBM             = 10,
+	CMD_START_JOIN      = 11,
+	CMD_SET_KEYS        = 12,
+	CMD_READ_MEMORY     = 13,
+	CMD_WRITE_MEMORY    = 14,
+	CMD_BEACON          = 19,
+	CMD_PROBE_RESP      = 20,
+	CMD_NULL_DATA       = 21,
+	CMD_PROBE_REQ       = 22,
+	CMD_TEST            = 23,
+	CMD_RADIO_CALIBRATE     = 25,   /* OBSOLETE */
+	CMD_ENABLE_RX_PATH      = 27,   /* OBSOLETE */
+	CMD_NOISE_HIST      = 28,
+	CMD_RX_RESET        = 29,
+	CMD_PS_POLL         = 30,
+	CMD_QOS_NULL_DATA   = 31,
+	CMD_LNA_CONTROL     = 32,
+	CMD_SET_BCN_MODE    = 33,
+	CMD_MEASUREMENT      = 34,
+	CMD_STOP_MEASUREMENT = 35,
+	CMD_DISCONNECT       = 36,
+	CMD_SET_PS_MODE      = 37,
+	CMD_CHANNEL_SWITCH   = 38,
+	CMD_STOP_CHANNEL_SWICTH = 39,
+	CMD_AP_DISCOVERY     = 40,
+	CMD_STOP_AP_DISCOVERY = 41,
+	CMD_SPS_SCAN = 42,
+	CMD_STOP_SPS_SCAN = 43,
+	CMD_HEALTH_CHECK     = 45,
+	CMD_DEBUG            = 46,
+	CMD_TRIGGER_SCAN_TO  = 47,
+
+	NUM_COMMANDS,
+	MAX_COMMAND_ID = 0xFFFF,
+};
+
+#define MAX_CMD_PARAMS 572
+
+struct  wl12xx_command {
+	u16 id;
+	u16 status;
+	u8  parameters[MAX_CMD_PARAMS];
+};
+
+enum {
+	CMD_MAILBOX_IDLE              		=  0,
+	CMD_STATUS_SUCCESS            		=  1,
+	CMD_STATUS_UNKNOWN_CMD        		=  2,
+	CMD_STATUS_UNKNOWN_IE         		=  3,
+	CMD_STATUS_REJECT_MEAS_SG_ACTIVE 	= 11,
+	CMD_STATUS_RX_BUSY            		= 13,
+	CMD_STATUS_INVALID_PARAM      		= 14,
+	CMD_STATUS_TEMPLATE_TOO_LARGE 		= 15,
+	CMD_STATUS_OUT_OF_MEMORY      		= 16,
+	CMD_STATUS_STA_TABLE_FULL     		= 17,
+	CMD_STATUS_RADIO_ERROR        		= 18,
+	CMD_STATUS_WRONG_NESTING      		= 19,
+	CMD_STATUS_TIMEOUT            		= 21, /* Driver internal use.*/
+	CMD_STATUS_FW_RESET           		= 22, /* Driver internal use.*/
+	MAX_COMMAND_STATUS            		= 0xff
+};
+
+
+/*
+ * CMD_READ_MEMORY
+ *
+ * The host issues this command to read the WiLink device memory/registers.
+ *
+ * Note: The Base Band address has special handling (16 bits registers and
+ * addresses). For more information, see the hardware specification.
+ */
+/*
+ * CMD_WRITE_MEMORY
+ *
+ * The host issues this command to write the WiLink device memory/registers.
+ *
+ * The Base Band address has special handling (16 bits registers and
+ * addresses). For more information, see the hardware specification.
+ */
+#define MAX_READ_SIZE 256
+
+struct cmd_read_write_memory {
+	/* The address of the memory to read from or write to.*/
+	u32 addr;
+
+	/* The amount of data in bytes to read from or write to the WiLink
+	 * device.*/
+	u32 size;
+
+	/* The actual value read from or written to the Wilink. The source
+	   of this field is the Host in WRITE command or the Wilink in READ
+	   command. */
+	u8 value[MAX_READ_SIZE];
+};
+
+#define CMDMBOX_HEADER_LEN 4
+#define CMDMBOX_INFO_ELEM_HEADER_LEN 4
+
+
+struct basic_scan_parameters {
+	u32 rx_config_options;
+	u32 rx_filter_options;
+
+	/*
+	 * Scan options:
+	 * bit 0: When this bit is set, passive scan.
+	 * bit 1: Band, when this bit is set we scan
+	 * in the 5Ghz band.
+	 * bit 2: voice mode, 0 for normal scan.
+	 * bit 3: scan priority, 1 for high priority.
+	 */
+	u16 scan_options;
+
+	/* Number of channels to scan */
+	u8 num_channels;
+
+	/* Number opf probe requests to send, per channel */
+	u8 num_probe_requests;
+
+	/* Rate and modulation for probe requests */
+	u16 tx_rate;
+
+	u8 tid_trigger;
+	u8 ssid_len;
+	u32 ssid[8];
+
+} __attribute__ ((packed));
+
+struct basic_scan_channel_parameters {
+	u32 min_duration; /* in TU */
+	u32 max_duration; /* in TU */
+	u32 bssid_lsb;
+	u16 bssid_msb;
+
+	/*
+	 * bits 0-3: Early termination count.
+	 * bits 4-5: Early termination condition.
+	 */
+	u8 early_termination;
+
+	u8 tx_power_att;
+	u8 channel;
+	u8 pad[3];
+} __attribute__ ((packed));
+
+/* SCAN parameters */
+#define SCAN_MAX_NUM_OF_CHANNELS 16
+
+struct cmd_scan {
+	struct basic_scan_parameters params;
+	struct basic_scan_channel_parameters channels[SCAN_MAX_NUM_OF_CHANNELS];
+} __attribute__ ((packed));
+
+enum {
+	BSS_TYPE_IBSS = 0,
+	BSS_TYPE_STA_BSS = 2,
+	BSS_TYPE_AP_BSS = 3,
+	MAX_BSS_TYPE = 0xFF
+};
+
+#define JOIN_CMD_CTRL_TX_FLUSH             0x80 /* Firmware flushes all Tx */
+#define JOIN_CMD_CTRL_EARLY_WAKEUP_ENABLE  0x01 /* Early wakeup time */
+
+
+struct cmd_join {
+	u32 bssid_lsb;
+	u16 bssid_msb;
+	u16 beacon_interval; /* in TBTTs */
+	u32 rx_config_options;
+	u32 rx_filter_options;
+
+	/*
+	 * The target uses this field to determine the rate at
+	 * which to transmit control frame responses (such as
+	 * ACK or CTS frames).
+	 */
+	u16 basic_rate_set;
+	u8 dtim_interval;
+	u8 tx_ctrl_frame_rate; /* OBSOLETE */
+	u8 tx_ctrl_frame_mod;  /* OBSOLETE */
+	/*
+	 * bits 0-2: This bitwise field specifies the type
+	 * of BSS to start or join (BSS_TYPE_*).
+	 * bit 4: Band - The radio band in which to join
+	 * or start.
+	 *  0 - 2.4GHz band
+	 *  1 - 5GHz band
+	 * bits 3, 5-7: Reserved
+	 */
+	u8 bss_type;
+	u8 channel;
+	u8 ssid_len;
+	u8 ssid[IW_ESSID_MAX_SIZE];
+	u8 ctrl; /* JOIN_CMD_CTRL_* */
+	u8 tx_mgt_frame_rate; /* OBSOLETE */
+	u8 tx_mgt_frame_mod;  /* OBSOLETE */
+	u8 reserved;
+} __attribute__ ((packed));
+
+
+#endif /* __WL12XX_CMD_H__ */

drivers/net/wireless/wl12xx/debugfs.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include "debugfs.h"
+
+#include <linux/skbuff.h>
+
+#include "wl12xx.h"
+#include "acx.h"
+
+/* ms */
+#define WL12XX_DEBUGFS_STATS_LIFETIME 1000
+
+/* debugfs macros idea from mac80211 */
+
+#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)		\
+static ssize_t name## _read(struct file *file, char __user *userbuf,	\
+			    size_t count, loff_t *ppos)			\
+{									\
+	struct wl12xx *wl = file->private_data;				\
+	char buf[buflen];						\
+	int res;							\
+									\
+	res = scnprintf(buf, buflen, fmt "\n", ##value);		\
+	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
+}									\
+									\
+static const struct file_operations name## _ops = {			\
+	.read = name## _read,						\
+	.open = wl12xx_open_file_generic,				\
+};
+
+#define DEBUGFS_ADD(name, parent)					\
+	wl->debugfs.name = debugfs_create_file(#name, 0400, parent,	\
+					       wl, &name## _ops);	\
+	if (IS_ERR(wl->debugfs.name)) {					\
+		ret = PTR_ERR(wl->debugfs.name);			\
+		wl->debugfs.name = NULL;				\
+		goto out;						\
+	}
+
+#define DEBUGFS_DEL(name)						\
+	do {								\
+		debugfs_remove(wl->debugfs.name);			\
+		wl->debugfs.name = NULL;				\
+	} while (0)
+
+#define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt)			\
+static ssize_t sub## _ ##name## _read(struct file *file,		\
+				      char __user *userbuf,		\
+				      size_t count, loff_t *ppos)	\
+{									\
+	struct wl12xx *wl = file->private_data;				\
+	char buf[buflen];						\
+	int res;							\
+									\
+	wl12xx_debugfs_update_stats(wl);				\
+									\
+	res = scnprintf(buf, buflen, fmt "\n",				\
+			wl->stats.fw_stats->sub.name);			\
+	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
+}									\
+									\
+static const struct file_operations sub## _ ##name## _ops = {		\
+	.read = sub## _ ##name## _read,					\
+	.open = wl12xx_open_file_generic,				\
+};
+
+#define DEBUGFS_FWSTATS_ADD(sub, name)				\
+	DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics)
+
+#define DEBUGFS_FWSTATS_DEL(sub, name)				\
+	DEBUGFS_DEL(sub## _ ##name)
+
+static void wl12xx_debugfs_update_stats(struct wl12xx *wl)
+{
+	mutex_lock(&wl->mutex);
+
+	if (wl->state == WL12XX_STATE_ON &&
+	    time_after(jiffies, wl->stats.fw_stats_update +
+		       msecs_to_jiffies(WL12XX_DEBUGFS_STATS_LIFETIME))) {
+		wl12xx_acx_statistics(wl, wl->stats.fw_stats);
+		wl->stats.fw_stats_update = jiffies;
+	}
+
+	mutex_unlock(&wl->mutex);
+}
+
+static int wl12xx_open_file_generic(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+	return 0;
+}
+
+DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
+DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
+DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
+DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
+DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
+DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
+/* skipping wep.reserved */
+DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
+DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
+DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
+DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
+/* skipping cont_miss_bcns_spread for now */
+DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
+DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
+DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
+DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
+DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
+DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
+DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
+DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
+DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
+DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
+DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
+DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
+DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
+DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
+DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
+DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
+DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
+DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
+DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
+DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");
+
+DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
+		     20, "%u");
+DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
+DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");
+
+DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
+DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u",
+		      wl->stats.excessive_retries);
+
+static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
+				 size_t count, loff_t *ppos)
+{
+	struct wl12xx *wl = file->private_data;
+	u32 queue_len;
+	char buf[20];
+	int res;
+
+	queue_len = skb_queue_len(&wl->tx_queue);
+
+	res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
+	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+
+static const struct file_operations tx_queue_len_ops = {
+	.read = tx_queue_len_read,
+	.open = wl12xx_open_file_generic,
+};
+
+static void wl12xx_debugfs_delete_files(struct wl12xx *wl)
+{
+	DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);
+
+	DEBUGFS_FWSTATS_DEL(rx, out_of_mem);
+	DEBUGFS_FWSTATS_DEL(rx, hdr_overflow);
+	DEBUGFS_FWSTATS_DEL(rx, hw_stuck);
+	DEBUGFS_FWSTATS_DEL(rx, dropped);
+	DEBUGFS_FWSTATS_DEL(rx, fcs_err);
+	DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig);
+	DEBUGFS_FWSTATS_DEL(rx, path_reset);
+	DEBUGFS_FWSTATS_DEL(rx, reset_counter);
+
+	DEBUGFS_FWSTATS_DEL(dma, rx_requested);
+	DEBUGFS_FWSTATS_DEL(dma, rx_errors);
+	DEBUGFS_FWSTATS_DEL(dma, tx_requested);
+	DEBUGFS_FWSTATS_DEL(dma, tx_errors);
+
+	DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt);
+	DEBUGFS_FWSTATS_DEL(isr, fiqs);
+	DEBUGFS_FWSTATS_DEL(isr, rx_headers);
+	DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow);
+	DEBUGFS_FWSTATS_DEL(isr, rx_rdys);
+	DEBUGFS_FWSTATS_DEL(isr, irqs);
+	DEBUGFS_FWSTATS_DEL(isr, tx_procs);
+	DEBUGFS_FWSTATS_DEL(isr, decrypt_done);
+	DEBUGFS_FWSTATS_DEL(isr, dma0_done);
+	DEBUGFS_FWSTATS_DEL(isr, dma1_done);
+	DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete);
+	DEBUGFS_FWSTATS_DEL(isr, commands);
+	DEBUGFS_FWSTATS_DEL(isr, rx_procs);
+	DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes);
+	DEBUGFS_FWSTATS_DEL(isr, host_acknowledges);
+	DEBUGFS_FWSTATS_DEL(isr, pci_pm);
+	DEBUGFS_FWSTATS_DEL(isr, wakeups);
+	DEBUGFS_FWSTATS_DEL(isr, low_rssi);
+
+	DEBUGFS_FWSTATS_DEL(wep, addr_key_count);
+	DEBUGFS_FWSTATS_DEL(wep, default_key_count);
+	/* skipping wep.reserved */
+	DEBUGFS_FWSTATS_DEL(wep, key_not_found);
+	DEBUGFS_FWSTATS_DEL(wep, decrypt_fail);
+	DEBUGFS_FWSTATS_DEL(wep, packets);
+	DEBUGFS_FWSTATS_DEL(wep, interrupt);
+
+	DEBUGFS_FWSTATS_DEL(pwr, ps_enter);
+	DEBUGFS_FWSTATS_DEL(pwr, elp_enter);
+	DEBUGFS_FWSTATS_DEL(pwr, missing_bcns);
+	DEBUGFS_FWSTATS_DEL(pwr, wake_on_host);
+	DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp);
+	DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps);
+	DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps);
+	DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons);
+	DEBUGFS_FWSTATS_DEL(pwr, power_save_off);
+	DEBUGFS_FWSTATS_DEL(pwr, enable_ps);
+	DEBUGFS_FWSTATS_DEL(pwr, disable_ps);
+	DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps);
+	/* skipping cont_miss_bcns_spread for now */
+	DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons);
+
+	DEBUGFS_FWSTATS_DEL(mic, rx_pkts);
+	DEBUGFS_FWSTATS_DEL(mic, calc_failure);
+
+	DEBUGFS_FWSTATS_DEL(aes, encrypt_fail);
+	DEBUGFS_FWSTATS_DEL(aes, decrypt_fail);
+	DEBUGFS_FWSTATS_DEL(aes, encrypt_packets);
+	DEBUGFS_FWSTATS_DEL(aes, decrypt_packets);
+	DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt);
+	DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt);
+
+	DEBUGFS_FWSTATS_DEL(event, heart_beat);
+	DEBUGFS_FWSTATS_DEL(event, calibration);
+	DEBUGFS_FWSTATS_DEL(event, rx_mismatch);
+	DEBUGFS_FWSTATS_DEL(event, rx_mem_empty);
+	DEBUGFS_FWSTATS_DEL(event, rx_pool);
+	DEBUGFS_FWSTATS_DEL(event, oom_late);
+	DEBUGFS_FWSTATS_DEL(event, phy_transmit_error);
+	DEBUGFS_FWSTATS_DEL(event, tx_stuck);
+
+	DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts);
+	DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts);
+	DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime);
+	DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn);
+	DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn);
+	DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization);
+	DEBUGFS_FWSTATS_DEL(ps, upsd_utilization);
+
+	DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop);
+	DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data);
+	DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
+	DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data);
+	DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);
+
+	DEBUGFS_DEL(tx_queue_len);
+	DEBUGFS_DEL(retry_count);
+	DEBUGFS_DEL(excessive_retries);
+}
+
+static int wl12xx_debugfs_add_files(struct wl12xx *wl)
+{
+	int ret = 0;
+
+	DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
+
+	DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
+	DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
+	DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
+	DEBUGFS_FWSTATS_ADD(rx, dropped);
+	DEBUGFS_FWSTATS_ADD(rx, fcs_err);
+	DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
+	DEBUGFS_FWSTATS_ADD(rx, path_reset);
+	DEBUGFS_FWSTATS_ADD(rx, reset_counter);
+
+	DEBUGFS_FWSTATS_ADD(dma, rx_requested);
+	DEBUGFS_FWSTATS_ADD(dma, rx_errors);
+	DEBUGFS_FWSTATS_ADD(dma, tx_requested);
+	DEBUGFS_FWSTATS_ADD(dma, tx_errors);
+
+	DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
+	DEBUGFS_FWSTATS_ADD(isr, fiqs);
+	DEBUGFS_FWSTATS_ADD(isr, rx_headers);
+	DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
+	DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
+	DEBUGFS_FWSTATS_ADD(isr, irqs);
+	DEBUGFS_FWSTATS_ADD(isr, tx_procs);
+	DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
+	DEBUGFS_FWSTATS_ADD(isr, dma0_done);
+	DEBUGFS_FWSTATS_ADD(isr, dma1_done);
+	DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
+	DEBUGFS_FWSTATS_ADD(isr, commands);
+	DEBUGFS_FWSTATS_ADD(isr, rx_procs);
+	DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
+	DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
+	DEBUGFS_FWSTATS_ADD(isr, pci_pm);
+	DEBUGFS_FWSTATS_ADD(isr, wakeups);
+	DEBUGFS_FWSTATS_ADD(isr, low_rssi);
+
+	DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
+	DEBUGFS_FWSTATS_ADD(wep, default_key_count);
+	/* skipping wep.reserved */
+	DEBUGFS_FWSTATS_ADD(wep, key_not_found);
+	DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
+	DEBUGFS_FWSTATS_ADD(wep, packets);
+	DEBUGFS_FWSTATS_ADD(wep, interrupt);
+
+	DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
+	DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
+	DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
+	DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
+	DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
+	DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
+	DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
+	DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
+	DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
+	DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
+	DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
+	DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
+	/* skipping cont_miss_bcns_spread for now */
+	DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
+
+	DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
+	DEBUGFS_FWSTATS_ADD(mic, calc_failure);
+
+	DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
+	DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
+	DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
+	DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
+	DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
+	DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
+
+	DEBUGFS_FWSTATS_ADD(event, heart_beat);
+	DEBUGFS_FWSTATS_ADD(event, calibration);
+	DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
+	DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
+	DEBUGFS_FWSTATS_ADD(event, rx_pool);
+	DEBUGFS_FWSTATS_ADD(event, oom_late);
+	DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
+	DEBUGFS_FWSTATS_ADD(event, tx_stuck);
+
+	DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
+	DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
+	DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
+	DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
+	DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
+	DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
+	DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
+
+	DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
+	DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
+	DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
+	DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
+	DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
+
+	DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
+	DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
+	DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
+
+out:
+	if (ret < 0)
+		wl12xx_debugfs_delete_files(wl);
+
+	return ret;
+}
+
+void wl12xx_debugfs_reset(struct wl12xx *wl)
+{
+	memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
+	wl->stats.retry_count = 0;
+	wl->stats.excessive_retries = 0;
+}
+
+int wl12xx_debugfs_init(struct wl12xx *wl)
+{
+	int ret;
+
+	wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
+
+	if (IS_ERR(wl->debugfs.rootdir)) {
+		ret = PTR_ERR(wl->debugfs.rootdir);
+		wl->debugfs.rootdir = NULL;
+		goto err;
+	}
+
+	wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
+						       wl->debugfs.rootdir);
+
+	if (IS_ERR(wl->debugfs.fw_statistics)) {
+		ret = PTR_ERR(wl->debugfs.fw_statistics);
+		wl->debugfs.fw_statistics = NULL;
+		goto err_root;
+	}
+
+	wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
+				      GFP_KERNEL);
+
+	if (!wl->stats.fw_stats) {
+		ret = -ENOMEM;
+		goto err_fw;
+	}
+
+	wl->stats.fw_stats_update = jiffies;
+
+	ret = wl12xx_debugfs_add_files(wl);
+
+	if (ret < 0)
+		goto err_file;
+
+	return 0;
+
+err_file:
+	kfree(wl->stats.fw_stats);
+	wl->stats.fw_stats = NULL;
+
+err_fw:
+	debugfs_remove(wl->debugfs.fw_statistics);
+	wl->debugfs.fw_statistics = NULL;
+
+err_root:
+	debugfs_remove(wl->debugfs.rootdir);
+	wl->debugfs.rootdir = NULL;
+
+err:
+	return ret;
+}
+
+void wl12xx_debugfs_exit(struct wl12xx *wl)
+{
+	wl12xx_debugfs_delete_files(wl);
+
+	kfree(wl->stats.fw_stats);
+	wl->stats.fw_stats = NULL;
+
+	debugfs_remove(wl->debugfs.fw_statistics);
+	wl->debugfs.fw_statistics = NULL;
+
+	debugfs_remove(wl->debugfs.rootdir);
+	wl->debugfs.rootdir = NULL;
+
+}

drivers/net/wireless/wl12xx/debugfs.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef WL12XX_DEBUGFS_H
+#define WL12XX_DEBUGFS_H
+
+#include "wl12xx.h"
+
+int wl12xx_debugfs_init(struct wl12xx *wl);
+void wl12xx_debugfs_exit(struct wl12xx *wl);
+void wl12xx_debugfs_reset(struct wl12xx *wl);
+
+#endif /* WL12XX_DEBUGFS_H */

drivers/net/wireless/wl12xx/event.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include "wl12xx.h"
+#include "reg.h"
+#include "spi.h"
+#include "event.h"
+#include "ps.h"
+
+static int wl12xx_event_scan_complete(struct wl12xx *wl,
+				      struct event_mailbox *mbox)
+{
+	wl12xx_debug(DEBUG_EVENT, "status: 0x%x, channels: %d",
+		     mbox->scheduled_scan_status,
+		     mbox->scheduled_scan_channels);
+
+	if (wl->scanning) {
+		mutex_unlock(&wl->mutex);
+		ieee80211_scan_completed(wl->hw, false);
+		mutex_lock(&wl->mutex);
+		wl->scanning = false;
+	}
+
+	return 0;
+}
+
+static void wl12xx_event_mbox_dump(struct event_mailbox *mbox)
+{
+	wl12xx_debug(DEBUG_EVENT, "MBOX DUMP:");
+	wl12xx_debug(DEBUG_EVENT, "\tvector: 0x%x", mbox->events_vector);
+	wl12xx_debug(DEBUG_EVENT, "\tmask: 0x%x", mbox->events_mask);
+}
+
+static int wl12xx_event_process(struct wl12xx *wl, struct event_mailbox *mbox)
+{
+	int ret;
+	u32 vector;
+
+	wl12xx_event_mbox_dump(mbox);
+
+	vector = mbox->events_vector & ~(mbox->events_mask);
+	wl12xx_debug(DEBUG_EVENT, "vector: 0x%x", vector);
+
+	if (vector & SCAN_COMPLETE_EVENT_ID) {
+		ret = wl12xx_event_scan_complete(wl, mbox);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (vector & BSS_LOSE_EVENT_ID) {
+		wl12xx_debug(DEBUG_EVENT, "BSS_LOSE_EVENT");
+
+		if (wl->psm_requested && wl->psm) {
+			ret = wl12xx_ps_set_mode(wl, STATION_ACTIVE_MODE);
+			if (ret < 0)
+				return ret;
+		}
+	}
+
+	return 0;
+}
+
+int wl12xx_event_unmask(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl12xx_acx_event_mbox_mask(wl, ~(wl->event_mask));
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+void wl12xx_event_mbox_config(struct wl12xx *wl)
+{
+	wl->mbox_ptr[0] = wl12xx_reg_read32(wl, REG_EVENT_MAILBOX_PTR);
+	wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox);
+
+	wl12xx_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x",
+		     wl->mbox_ptr[0], wl->mbox_ptr[1]);
+}
+
+int wl12xx_event_handle(struct wl12xx *wl, u8 mbox_num)
+{
+	struct event_mailbox mbox;
+	int ret;
+
+	wl12xx_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
+
+	if (mbox_num > 1)
+		return -EINVAL;
+
+	/* first we read the mbox descriptor */
+	wl12xx_spi_mem_read(wl, wl->mbox_ptr[mbox_num], &mbox,
+			    sizeof(struct event_mailbox));
+
+	/* process the descriptor */
+	ret = wl12xx_event_process(wl, &mbox);
+	if (ret < 0)
+		return ret;
+
+	/* then we let the firmware know it can go on...*/
+	wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK);
+
+	return 0;
+}

drivers/net/wireless/wl12xx/event.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_EVENT_H__
+#define __WL12XX_EVENT_H__
+
+/*
+ * Mbox events
+ *
+ * The event mechanism is based on a pair of event buffers (buffers A and
+ * B) at fixed locations in the target's memory. The host processes one
+ * buffer while the other buffer continues to collect events. If the host
+ * is not processing events, an interrupt is issued to signal that a buffer
+ * is ready. Once the host is done with processing events from one buffer,
+ * it signals the target (with an ACK interrupt) that the event buffer is
+ * free.
+ */
+
+enum {
+	RESERVED1_EVENT_ID                       = BIT(0),
+	RESERVED2_EVENT_ID                       = BIT(1),
+	MEASUREMENT_START_EVENT_ID               = BIT(2),
+	SCAN_COMPLETE_EVENT_ID                   = BIT(3),
+	CALIBRATION_COMPLETE_EVENT_ID            = BIT(4),
+	ROAMING_TRIGGER_LOW_RSSI_EVENT_ID        = BIT(5),
+	PS_REPORT_EVENT_ID                       = BIT(6),
+	SYNCHRONIZATION_TIMEOUT_EVENT_ID         = BIT(7),
+	HEALTH_REPORT_EVENT_ID                   = BIT(8),
+	ACI_DETECTION_EVENT_ID                   = BIT(9),
+	DEBUG_REPORT_EVENT_ID                    = BIT(10),
+	MAC_STATUS_EVENT_ID                      = BIT(11),
+	DISCONNECT_EVENT_COMPLETE_ID             = BIT(12),
+	JOIN_EVENT_COMPLETE_ID                   = BIT(13),
+	CHANNEL_SWITCH_COMPLETE_EVENT_ID         = BIT(14),
+	BSS_LOSE_EVENT_ID                        = BIT(15),
+	ROAMING_TRIGGER_MAX_TX_RETRY_EVENT_ID    = BIT(16),
+	MEASUREMENT_COMPLETE_EVENT_ID            = BIT(17),
+	AP_DISCOVERY_COMPLETE_EVENT_ID           = BIT(18),
+	SCHEDULED_SCAN_COMPLETE_EVENT_ID         = BIT(19),
+	PSPOLL_DELIVERY_FAILURE_EVENT_ID 	 = BIT(20),
+	RESET_BSS_EVENT_ID                       = BIT(21),
+	REGAINED_BSS_EVENT_ID                    = BIT(22),
+	ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID   = BIT(23),
+	ROAMING_TRIGGER_LOW_SNR_EVENT_ID         = BIT(24),
+	ROAMING_TRIGGER_REGAINED_SNR_EVENT_ID    = BIT(25),
+
+	DBG_EVENT_ID                             = BIT(26),
+	BT_PTA_SENSE_EVENT_ID                    = BIT(27),
+	BT_PTA_PREDICTION_EVENT_ID               = BIT(28),
+	BT_PTA_AVALANCHE_EVENT_ID                = BIT(29),
+
+	PLT_RX_CALIBRATION_COMPLETE_EVENT_ID     = BIT(30),
+
+	EVENT_MBOX_ALL_EVENT_ID                  = 0x7fffffff,
+};
+
+struct event_debug_report {
+	u8 debug_event_id;
+	u8 num_params;
+	u16 pad;
+	u32 report_1;
+	u32 report_2;
+	u32 report_3;
+} __attribute__ ((packed));
+
+struct event_mailbox {
+	u32 events_vector;
+	u32 events_mask;
+	u32 reserved_1;
+	u32 reserved_2;
+
+	char average_rssi_level;
+	u8 ps_status;
+	u8 channel_switch_status;
+	u8 scheduled_scan_status;
+
+	/* Channels scanned by the scheduled scan */
+	u16 scheduled_scan_channels;
+
+	/* If bit 0 is set -> target's fatal error */
+	u16 health_report;
+	u16 bad_fft_counter;
+	u8 bt_pta_sense_info;
+	u8 bt_pta_protective_info;
+	u32 reserved;
+	u32 debug_report[2];
+
+	/* Number of FCS errors since last event */
+	u32 fcs_err_counter;
+
+	struct event_debug_report report;
+	u8 average_snr_level;
+	u8 padding[19];
+} __attribute__ ((packed));
+
+int wl12xx_event_unmask(struct wl12xx *wl);
+void wl12xx_event_mbox_config(struct wl12xx *wl);
+int wl12xx_event_handle(struct wl12xx *wl, u8 mbox);
+
+#endif

drivers/net/wireless/wl12xx/init.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "init.h"
+#include "wl12xx_80211.h"
+#include "acx.h"
+#include "cmd.h"
+
+int wl12xx_hw_init_hwenc_config(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl12xx_acx_feature_cfg(wl);
+	if (ret < 0) {
+		wl12xx_warning("couldn't set feature config");
+		return ret;
+	}
+
+	ret = wl12xx_acx_default_key(wl, wl->default_key);
+	if (ret < 0) {
+		wl12xx_warning("couldn't set default key");
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_hw_init_templates_config(struct wl12xx *wl)
+{
+	int ret;
+	u8 partial_vbm[PARTIAL_VBM_MAX];
+
+	/* send empty templates for fw memory reservation */
+	ret = wl12xx_cmd_template_set(wl, CMD_PROBE_REQ, NULL,
+				      sizeof(struct wl12xx_probe_req_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_cmd_template_set(wl, CMD_NULL_DATA, NULL,
+				      sizeof(struct wl12xx_null_data_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_cmd_template_set(wl, CMD_PS_POLL, NULL,
+				      sizeof(struct wl12xx_ps_poll_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_cmd_template_set(wl, CMD_QOS_NULL_DATA, NULL,
+				      sizeof
+				      (struct wl12xx_qos_null_data_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_cmd_template_set(wl, CMD_PROBE_RESP, NULL,
+				      sizeof
+				      (struct wl12xx_probe_resp_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_cmd_template_set(wl, CMD_BEACON, NULL,
+				      sizeof
+				      (struct wl12xx_beacon_template));
+	if (ret < 0)
+		return ret;
+
+	/* tim templates, first reserve space then allocate an empty one */
+	memset(partial_vbm, 0, PARTIAL_VBM_MAX);
+	ret = wl12xx_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, PARTIAL_VBM_MAX, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, 1, 0);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_hw_init_rx_config(struct wl12xx *wl, u32 config, u32 filter)
+{
+	int ret;
+
+	ret = wl12xx_acx_rx_msdu_life_time(wl, RX_MSDU_LIFETIME_DEF);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_acx_rx_config(wl, config, filter);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_hw_init_phy_config(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl12xx_acx_pd_threshold(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_acx_slot(wl, DEFAULT_SLOT_TIME);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_acx_group_address_tbl(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_acx_service_period_timeout(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_acx_rts_threshold(wl, RTS_THRESHOLD_DEF);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_hw_init_beacon_filter(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl12xx_acx_beacon_filter_opt(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_acx_beacon_filter_table(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_hw_init_pta(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl12xx_acx_sg_enable(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_acx_sg_cfg(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_hw_init_energy_detection(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl12xx_acx_cca_threshold(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_hw_init_beacon_broadcast(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl12xx_acx_bcn_dtim_options(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_hw_init_power_auth(struct wl12xx *wl)
+{
+	return wl12xx_acx_sleep_auth(wl, WL12XX_PSM_CAM);
+}

drivers/net/wireless/wl12xx/init.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_INIT_H__
+#define __WL12XX_INIT_H__
+
+#include "wl12xx.h"
+
+int wl12xx_hw_init_hwenc_config(struct wl12xx *wl);
+int wl12xx_hw_init_templates_config(struct wl12xx *wl);
+int wl12xx_hw_init_mem_config(struct wl12xx *wl);
+int wl12xx_hw_init_rx_config(struct wl12xx *wl, u32 config, u32 filter);
+int wl12xx_hw_init_phy_config(struct wl12xx *wl);
+int wl12xx_hw_init_beacon_filter(struct wl12xx *wl);
+int wl12xx_hw_init_pta(struct wl12xx *wl);
+int wl12xx_hw_init_energy_detection(struct wl12xx *wl);
+int wl12xx_hw_init_beacon_broadcast(struct wl12xx *wl);
+int wl12xx_hw_init_power_auth(struct wl12xx *wl);
+
+#endif

drivers/net/wireless/wl12xx/main.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/spi/spi.h>
+#include <linux/crc32.h>
+#include <linux/etherdevice.h>
+#include <linux/spi/wl12xx.h>
+
+#include "wl12xx.h"
+#include "wl12xx_80211.h"
+#include "reg.h"
+#include "wl1251.h"
+#include "spi.h"
+#include "event.h"
+#include "tx.h"
+#include "rx.h"
+#include "ps.h"
+#include "init.h"
+#include "debugfs.h"
+
+static void wl12xx_disable_interrupts(struct wl12xx *wl)
+{
+	disable_irq(wl->irq);
+}
+
+static void wl12xx_power_off(struct wl12xx *wl)
+{
+	wl->set_power(false);
+}
+
+static void wl12xx_power_on(struct wl12xx *wl)
+{
+	wl->set_power(true);
+}
+
+static irqreturn_t wl12xx_irq(int irq, void *cookie)
+{
+	struct wl12xx *wl;
+
+	wl12xx_debug(DEBUG_IRQ, "IRQ");
+
+	wl = cookie;
+
+	schedule_work(&wl->irq_work);
+
+	return IRQ_HANDLED;
+}
+
+static int wl12xx_fetch_firmware(struct wl12xx *wl)
+{
+	const struct firmware *fw;
+	int ret;
+
+	ret = request_firmware(&fw, wl->chip.fw_filename, &wl->spi->dev);
+
+	if (ret < 0) {
+		wl12xx_error("could not get firmware: %d", ret);
+		return ret;
+	}
+
+	if (fw->size % 4) {
+		wl12xx_error("firmware size is not multiple of 32 bits: %d",
+			     fw->size);
+		ret = -EILSEQ;
+		goto out;
+	}
+
+	wl->fw_len = fw->size;
+	wl->fw = kmalloc(wl->fw_len, GFP_KERNEL);
+
+	if (!wl->fw) {
+		wl12xx_error("could not allocate memory for the firmware");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	memcpy(wl->fw, fw->data, wl->fw_len);
+
+	ret = 0;
+
+out:
+	release_firmware(fw);
+
+	return ret;
+}
+
+static int wl12xx_fetch_nvs(struct wl12xx *wl)
+{
+	const struct firmware *fw;
+	int ret;
+
+	ret = request_firmware(&fw, wl->chip.nvs_filename, &wl->spi->dev);
+
+	if (ret < 0) {
+		wl12xx_error("could not get nvs file: %d", ret);
+		return ret;
+	}
+
+	if (fw->size % 4) {
+		wl12xx_error("nvs size is not multiple of 32 bits: %d",
+			     fw->size);
+		ret = -EILSEQ;
+		goto out;
+	}
+
+	wl->nvs_len = fw->size;
+	wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL);
+
+	if (!wl->nvs) {
+		wl12xx_error("could not allocate memory for the nvs file");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	memcpy(wl->nvs, fw->data, wl->nvs_len);
+
+	ret = 0;
+
+out:
+	release_firmware(fw);
+
+	return ret;
+}
+
+static void wl12xx_fw_wakeup(struct wl12xx *wl)
+{
+	u32 elp_reg;
+
+	elp_reg = ELPCTRL_WAKE_UP;
+	wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
+	elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
+
+	if (!(elp_reg & ELPCTRL_WLAN_READY)) {
+		wl12xx_warning("WLAN not ready");
+		elp_reg = ELPCTRL_WAKE_UP_WLAN_READY;
+		wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
+	}
+}
+
+static int wl12xx_chip_wakeup(struct wl12xx *wl)
+{
+	int ret = 0;
+
+	wl12xx_power_on(wl);
+	msleep(wl->chip.power_on_sleep);
+	wl12xx_spi_reset(wl);
+	wl12xx_spi_init(wl);
+
+	/* We don't need a real memory partition here, because we only want
+	 * to use the registers at this point. */
+	wl12xx_set_partition(wl,
+			     0x00000000,
+			     0x00000000,
+			     REGISTERS_BASE,
+			     REGISTERS_DOWN_SIZE);
+
+	/* ELP module wake up */
+	wl12xx_fw_wakeup(wl);
+
+	/* whal_FwCtrl_BootSm() */
+
+	/* 0. read chip id from CHIP_ID */
+	wl->chip.id = wl12xx_reg_read32(wl, CHIP_ID_B);
+
+	/* 1. check if chip id is valid */
+
+	switch (wl->chip.id) {
+	case CHIP_ID_1251_PG12:
+		wl12xx_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)",
+			     wl->chip.id);
+
+		wl1251_setup(wl);
+
+		break;
+	case CHIP_ID_1271_PG10:
+	case CHIP_ID_1251_PG10:
+	case CHIP_ID_1251_PG11:
+	default:
+		wl12xx_error("unsupported chip id: 0x%x", wl->chip.id);
+		ret = -ENODEV;
+		goto out;
+	}
+
+	if (wl->fw == NULL) {
+		ret = wl12xx_fetch_firmware(wl);
+		if (ret < 0)
+			goto out;
+	}
+
+	/* No NVS from netlink, try to get it from the filesystem */
+	if (wl->nvs == NULL) {
+		ret = wl12xx_fetch_nvs(wl);
+		if (ret < 0)
+			goto out;
+	}
+
+out:
+	return ret;
+}
+
+static void wl12xx_filter_work(struct work_struct *work)
+{
+	struct wl12xx *wl =
+		container_of(work, struct wl12xx, filter_work);
+	int ret;
+
+	mutex_lock(&wl->mutex);
+
+	if (wl->state == WL12XX_STATE_OFF)
+		goto out;
+
+	ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0);
+	if (ret < 0)
+		goto out;
+
+out:
+	mutex_unlock(&wl->mutex);
+}
+
+int wl12xx_plt_start(struct wl12xx *wl)
+{
+	int ret;
+
+	wl12xx_notice("power up");
+
+	if (wl->state != WL12XX_STATE_OFF) {
+		wl12xx_error("cannot go into PLT state because not "
+			     "in off state: %d", wl->state);
+		return -EBUSY;
+	}
+
+	wl->state = WL12XX_STATE_PLT;
+
+	ret = wl12xx_chip_wakeup(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl->chip.op_boot(wl);
+	if (ret < 0)
+		return ret;
+
+	wl12xx_notice("firmware booted in PLT mode (%s)", wl->chip.fw_ver);
+
+	ret = wl->chip.op_plt_init(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl12xx_plt_stop(struct wl12xx *wl)
+{
+	wl12xx_notice("power down");
+
+	if (wl->state != WL12XX_STATE_PLT) {
+		wl12xx_error("cannot power down because not in PLT "
+			     "state: %d", wl->state);
+		return -EBUSY;
+	}
+
+	wl12xx_disable_interrupts(wl);
+	wl12xx_power_off(wl);
+
+	wl->state = WL12XX_STATE_OFF;
+
+	return 0;
+}
+
+
+static int wl12xx_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+	struct wl12xx *wl = hw->priv;
+
+	skb_queue_tail(&wl->tx_queue, skb);
+
+	schedule_work(&wl->tx_work);
+
+	/*
+	 * The workqueue is slow to process the tx_queue and we need stop
+	 * the queue here, otherwise the queue will get too long.
+	 */
+	if (skb_queue_len(&wl->tx_queue) >= WL12XX_TX_QUEUE_MAX_LENGTH) {
+		ieee80211_stop_queues(wl->hw);
+
+		/*
+		 * FIXME: this is racy, the variable is not properly
+		 * protected. Maybe fix this by removing the stupid
+		 * variable altogether and checking the real queue state?
+		 */
+		wl->tx_queue_stopped = true;
+	}
+
+	return NETDEV_TX_OK;
+}
+
+static int wl12xx_op_start(struct ieee80211_hw *hw)
+{
+	struct wl12xx *wl = hw->priv;
+	int ret = 0;
+
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 start");
+
+	mutex_lock(&wl->mutex);
+
+	if (wl->state != WL12XX_STATE_OFF) {
+		wl12xx_error("cannot start because not in off state: %d",
+			     wl->state);
+		ret = -EBUSY;
+		goto out;
+	}
+
+	ret = wl12xx_chip_wakeup(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl->chip.op_boot(wl);
+	if (ret < 0)
+		goto out;
+
+	ret = wl->chip.op_hw_init(wl);
+	if (ret < 0)
+		goto out;
+
+	ret = wl12xx_acx_station_id(wl);
+	if (ret < 0)
+		goto out;
+
+	wl->state = WL12XX_STATE_ON;
+
+	wl12xx_info("firmware booted (%s)", wl->chip.fw_ver);
+
+out:
+	if (ret < 0)
+		wl12xx_power_off(wl);
+
+	mutex_unlock(&wl->mutex);
+
+	return ret;
+}
+
+static void wl12xx_op_stop(struct ieee80211_hw *hw)
+{
+	struct wl12xx *wl = hw->priv;
+
+	wl12xx_info("down");
+
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 stop");
+
+	mutex_lock(&wl->mutex);
+
+	WARN_ON(wl->state != WL12XX_STATE_ON);
+
+	if (wl->scanning) {
+		mutex_unlock(&wl->mutex);
+		ieee80211_scan_completed(wl->hw, true);
+		mutex_lock(&wl->mutex);
+		wl->scanning = false;
+	}
+
+	wl->state = WL12XX_STATE_OFF;
+
+	wl12xx_disable_interrupts(wl);
+
+	mutex_unlock(&wl->mutex);
+
+	cancel_work_sync(&wl->irq_work);
+	cancel_work_sync(&wl->tx_work);
+	cancel_work_sync(&wl->filter_work);
+
+	mutex_lock(&wl->mutex);
+
+	/* let's notify MAC80211 about the remaining pending TX frames */
+	wl12xx_tx_flush(wl);
+
+	wl12xx_power_off(wl);
+
+	memset(wl->bssid, 0, ETH_ALEN);
+	wl->listen_int = 1;
+	wl->bss_type = MAX_BSS_TYPE;
+
+	wl->data_in_count = 0;
+	wl->rx_counter = 0;
+	wl->rx_handled = 0;
+	wl->rx_current_buffer = 0;
+	wl->rx_last_id = 0;
+	wl->next_tx_complete = 0;
+	wl->elp = false;
+	wl->psm = 0;
+	wl->tx_queue_stopped = false;
+	wl->power_level = WL12XX_DEFAULT_POWER_LEVEL;
+
+	wl12xx_debugfs_reset(wl);
+
+	mutex_unlock(&wl->mutex);
+}
+
+static int wl12xx_op_add_interface(struct ieee80211_hw *hw,
+				   struct ieee80211_if_init_conf *conf)
+{
+	struct wl12xx *wl = hw->priv;
+	DECLARE_MAC_BUF(mac);
+	int ret = 0;
+
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %s",
+		     conf->type, print_mac(mac, conf->mac_addr));
+
+	mutex_lock(&wl->mutex);
+
+	switch (conf->type) {
+	case NL80211_IFTYPE_STATION:
+		wl->bss_type = BSS_TYPE_STA_BSS;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		wl->bss_type = BSS_TYPE_IBSS;
+		break;
+	default:
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (memcmp(wl->mac_addr, conf->mac_addr, ETH_ALEN)) {
+		memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN);
+		SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
+		ret = wl12xx_acx_station_id(wl);
+		if (ret < 0)
+			goto out;
+	}
+
+out:
+	mutex_unlock(&wl->mutex);
+	return ret;
+}
+
+static void wl12xx_op_remove_interface(struct ieee80211_hw *hw,
+					 struct ieee80211_if_init_conf *conf)
+{
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 remove interface");
+}
+
+static int wl12xx_build_null_data(struct wl12xx *wl)
+{
+	struct wl12xx_null_data_template template;
+
+	if (!is_zero_ether_addr(wl->bssid)) {
+		memcpy(template.header.da, wl->bssid, ETH_ALEN);
+		memcpy(template.header.bssid, wl->bssid, ETH_ALEN);
+	} else {
+		memset(template.header.da, 0xff, ETH_ALEN);
+		memset(template.header.bssid, 0xff, ETH_ALEN);
+	}
+
+	memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
+	template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
+						IEEE80211_STYPE_NULLFUNC);
+
+	return wl12xx_cmd_template_set(wl, CMD_NULL_DATA, &template,
+				       sizeof(template));
+
+}
+
+static int wl12xx_build_ps_poll(struct wl12xx *wl, u16 aid)
+{
+	struct wl12xx_ps_poll_template template;
+
+	memcpy(template.bssid, wl->bssid, ETH_ALEN);
+	memcpy(template.ta, wl->mac_addr, ETH_ALEN);
+	template.aid = aid;
+	template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
+
+	return wl12xx_cmd_template_set(wl, CMD_PS_POLL, &template,
+				       sizeof(template));
+
+}
+
+static int wl12xx_op_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct wl12xx *wl = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+	int channel, ret = 0;
+
+	channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
+
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d",
+		     channel,
+		     conf->flags & IEEE80211_CONF_PS ? "on" : "off",
+		     conf->power_level);
+
+	mutex_lock(&wl->mutex);
+
+	if (channel != wl->channel) {
+		/* FIXME: use beacon interval provided by mac80211 */
+		ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0);
+		if (ret < 0)
+			goto out;
+
+		wl->channel = channel;
+	}
+
+	ret = wl12xx_build_null_data(wl);
+	if (ret < 0)
+		goto out;
+
+	if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) {
+		wl12xx_info("psm enabled");
+
+		wl->psm_requested = true;
+
+		/*
+		 * We enter PSM only if we're already associated.
+		 * If we're not, we'll enter it when joining an SSID,
+		 * through the bss_info_changed() hook.
+		 */
+		ret = wl12xx_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
+	} else if (!(conf->flags & IEEE80211_CONF_PS) &&
+		   wl->psm_requested) {
+		wl12xx_info("psm disabled");
+
+		wl->psm_requested = false;
+
+		if (wl->psm)
+			ret = wl12xx_ps_set_mode(wl, STATION_ACTIVE_MODE);
+	}
+
+	if (conf->power_level != wl->power_level) {
+		ret = wl12xx_acx_tx_power(wl, conf->power_level);
+		if (ret < 0)
+			goto out;
+
+		wl->power_level = conf->power_level;
+	}
+
+out:
+	mutex_unlock(&wl->mutex);
+	return ret;
+}
+
+#define WL12XX_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
+				  FIF_ALLMULTI | \
+				  FIF_FCSFAIL | \
+				  FIF_BCN_PRBRESP_PROMISC | \
+				  FIF_CONTROL | \
+				  FIF_OTHER_BSS)
+
+static void wl12xx_op_configure_filter(struct ieee80211_hw *hw,
+				       unsigned int changed,
+				       unsigned int *total,
+				       int mc_count,
+				       struct dev_addr_list *mc_list)
+{
+	struct wl12xx *wl = hw->priv;
+
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 configure filter");
+
+	*total &= WL12XX_SUPPORTED_FILTERS;
+	changed &= WL12XX_SUPPORTED_FILTERS;
+
+	if (changed == 0)
+		/* no filters which we support changed */
+		return;
+
+	/* FIXME: wl->rx_config and wl->rx_filter are not protected */
+
+	wl->rx_config = WL12XX_DEFAULT_RX_CONFIG;
+	wl->rx_filter = WL12XX_DEFAULT_RX_FILTER;
+
+	if (*total & FIF_PROMISC_IN_BSS) {
+		wl->rx_config |= CFG_BSSID_FILTER_EN;
+		wl->rx_config |= CFG_RX_ALL_GOOD;
+	}
+	if (*total & FIF_ALLMULTI)
+		/*
+		 * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive
+		 * all multicast frames
+		 */
+		wl->rx_config &= ~CFG_MC_FILTER_EN;
+	if (*total & FIF_FCSFAIL)
+		wl->rx_filter |= CFG_RX_FCS_ERROR;
+	if (*total & FIF_BCN_PRBRESP_PROMISC) {
+		wl->rx_config &= ~CFG_BSSID_FILTER_EN;
+		wl->rx_config &= ~CFG_SSID_FILTER_EN;
+	}
+	if (*total & FIF_CONTROL)
+		wl->rx_filter |= CFG_RX_CTL_EN;
+	if (*total & FIF_OTHER_BSS)
+		wl->rx_filter &= ~CFG_BSSID_FILTER_EN;
+
+	/*
+	 * FIXME: workqueues need to be properly cancelled on stop(), for
+	 * now let's just disable changing the filter settings. They will
+	 * be updated any on config().
+	 */
+	/* schedule_work(&wl->filter_work); */
+}
+
+/* HW encryption */
+static int wl12xx_set_key_type(struct wl12xx *wl, struct acx_set_key *key,
+			       enum set_key_cmd cmd,
+			       struct ieee80211_key_conf *mac80211_key,
+			       const u8 *addr)
+{
+	switch (mac80211_key->alg) {
+	case ALG_WEP:
+		if (is_broadcast_ether_addr(addr))
+			key->key_type = KEY_WEP_DEFAULT;
+		else
+			key->key_type = KEY_WEP_ADDR;
+
+		mac80211_key->hw_key_idx = mac80211_key->keyidx;
+		break;
+	case ALG_TKIP:
+		if (is_broadcast_ether_addr(addr))
+			key->key_type = KEY_TKIP_MIC_GROUP;
+		else
+			key->key_type = KEY_TKIP_MIC_PAIRWISE;
+
+		mac80211_key->hw_key_idx = mac80211_key->keyidx;
+		break;
+	case ALG_CCMP:
+		if (is_broadcast_ether_addr(addr))
+			key->key_type = KEY_AES_GROUP;
+		else
+			key->key_type = KEY_AES_PAIRWISE;
+		mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+		break;
+	default:
+		wl12xx_error("Unknown key algo 0x%x", mac80211_key->alg);
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int wl12xx_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+			     struct ieee80211_vif *vif,
+			     struct ieee80211_sta *sta,
+			     struct ieee80211_key_conf *key)
+{
+	struct wl12xx *wl = hw->priv;
+	struct acx_set_key wl_key;
+	const u8 *addr;
+	int ret;
+
+	static const u8 bcast_addr[ETH_ALEN] =
+		{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 set key");
+
+	memset(&wl_key, 0, sizeof(wl_key));
+
+	addr = sta ? sta->addr : bcast_addr;
+
+	wl12xx_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd);
+	wl12xx_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN);
+	wl12xx_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
+		     key->alg, key->keyidx, key->keylen, key->flags);
+	wl12xx_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen);
+
+	mutex_lock(&wl->mutex);
+
+	switch (cmd) {
+	case SET_KEY:
+		wl_key.key_action = KEY_ADD_OR_REPLACE;
+		break;
+	case DISABLE_KEY:
+		wl_key.key_action = KEY_REMOVE;
+		break;
+	default:
+		wl12xx_error("Unsupported key cmd 0x%x", cmd);
+		break;
+	}
+
+	ret = wl12xx_set_key_type(wl, &wl_key, cmd, key, addr);
+	if (ret < 0) {
+		wl12xx_error("Set KEY type failed");
+		goto out;
+	}
+
+	if (wl_key.key_type != KEY_WEP_DEFAULT)
+		memcpy(wl_key.addr, addr, ETH_ALEN);
+
+	if ((wl_key.key_type == KEY_TKIP_MIC_GROUP) ||
+	    (wl_key.key_type == KEY_TKIP_MIC_PAIRWISE)) {
+		/*
+		 * We get the key in the following form:
+		 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
+		 * but the target is expecting:
+		 * TKIP - RX MIC - TX MIC
+		 */
+		memcpy(wl_key.key, key->key, 16);
+		memcpy(wl_key.key + 16, key->key + 24, 8);
+		memcpy(wl_key.key + 24, key->key + 16, 8);
+
+	} else {
+		memcpy(wl_key.key, key->key, key->keylen);
+	}
+	wl_key.key_size = key->keylen;
+
+	wl_key.id = key->keyidx;
+	wl_key.ssid_profile = 0;
+
+	wl12xx_dump(DEBUG_CRYPT, "TARGET KEY: ", &wl_key, sizeof(wl_key));
+
+	if (wl12xx_cmd_send(wl, CMD_SET_KEYS, &wl_key, sizeof(wl_key)) < 0) {
+		wl12xx_error("Set KEY failed");
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+out:
+	mutex_unlock(&wl->mutex);
+	return ret;
+}
+
+static int wl12xx_build_basic_rates(char *rates)
+{
+	u8 index = 0;
+
+	rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
+	rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
+	rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
+	rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
+
+	return index;
+}
+
+static int wl12xx_build_extended_rates(char *rates)
+{
+	u8 index = 0;
+
+	rates[index++] = IEEE80211_OFDM_RATE_6MB;
+	rates[index++] = IEEE80211_OFDM_RATE_9MB;
+	rates[index++] = IEEE80211_OFDM_RATE_12MB;
+	rates[index++] = IEEE80211_OFDM_RATE_18MB;
+	rates[index++] = IEEE80211_OFDM_RATE_24MB;
+	rates[index++] = IEEE80211_OFDM_RATE_36MB;
+	rates[index++] = IEEE80211_OFDM_RATE_48MB;
+	rates[index++] = IEEE80211_OFDM_RATE_54MB;
+
+	return index;
+}
+
+
+static int wl12xx_build_probe_req(struct wl12xx *wl, u8 *ssid, size_t ssid_len)
+{
+	struct wl12xx_probe_req_template template;
+	struct wl12xx_ie_rates *rates;
+	char *ptr;
+	u16 size;
+
+	ptr = (char *)&template;
+	size = sizeof(struct ieee80211_header);
+
+	memset(template.header.da, 0xff, ETH_ALEN);
+	memset(template.header.bssid, 0xff, ETH_ALEN);
+	memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
+	template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
+
+	/* IEs */
+	/* SSID */
+	template.ssid.header.id = WLAN_EID_SSID;
+	template.ssid.header.len = ssid_len;
+	if (ssid_len && ssid)
+		memcpy(template.ssid.ssid, ssid, ssid_len);
+	size += sizeof(struct wl12xx_ie_header) + ssid_len;
+	ptr += size;
+
+	/* Basic Rates */
+	rates = (struct wl12xx_ie_rates *)ptr;
+	rates->header.id = WLAN_EID_SUPP_RATES;
+	rates->header.len = wl12xx_build_basic_rates(rates->rates);
+	size += sizeof(struct wl12xx_ie_header) + rates->header.len;
+	ptr += sizeof(struct wl12xx_ie_header) + rates->header.len;
+
+	/* Extended rates */
+	rates = (struct wl12xx_ie_rates *)ptr;
+	rates->header.id = WLAN_EID_EXT_SUPP_RATES;
+	rates->header.len = wl12xx_build_extended_rates(rates->rates);
+	size += sizeof(struct wl12xx_ie_header) + rates->header.len;
+
+	wl12xx_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size);
+
+	return wl12xx_cmd_template_set(wl, CMD_PROBE_REQ, &template,
+				      size);
+}
+
+static int wl12xx_hw_scan(struct wl12xx *wl, u8 *ssid, size_t len,
+			  u8 active_scan, u8 high_prio, u8 num_channels,
+			  u8 probe_requests)
+{
+	int i, ret;
+	u32 split_scan = 0;
+	u16 scan_options = 0;
+	struct cmd_scan *params;
+	struct wl12xx_command *cmd_answer;
+
+	if (wl->scanning)
+		return -EINVAL;
+
+	params = kzalloc(sizeof(*params), GFP_KERNEL);
+	if (!params)
+		return -ENOMEM;
+
+	params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
+	params->params.rx_filter_options =
+		cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
+
+	/* High priority scan */
+	if (!active_scan)
+		scan_options |= SCAN_PASSIVE;
+	if (high_prio)
+		scan_options |= SCAN_PRIORITY_HIGH;
+	params->params.scan_options = scan_options;
+
+	params->params.num_channels = num_channels;
+	params->params.num_probe_requests = probe_requests;
+	params->params.tx_rate = cpu_to_le16(1 << 1); /* 2 Mbps */
+	params->params.tid_trigger = 0;
+
+	for (i = 0; i < num_channels; i++) {
+		params->channels[i].min_duration = cpu_to_le32(30000);
+		params->channels[i].max_duration = cpu_to_le32(60000);
+		memset(&params->channels[i].bssid_lsb, 0xff, 4);
+		memset(&params->channels[i].bssid_msb, 0xff, 2);
+		params->channels[i].early_termination = 0;
+		params->channels[i].tx_power_att = 0;
+		params->channels[i].channel = i + 1;
+		memset(params->channels[i].pad, 0, 3);
+	}
+
+	for (i = num_channels; i < SCAN_MAX_NUM_OF_CHANNELS; i++)
+		memset(&params->channels[i], 0,
+		       sizeof(struct basic_scan_channel_parameters));
+
+	if (len && ssid) {
+		params->params.ssid_len = len;
+		memcpy(params->params.ssid, ssid, len);
+	} else {
+		params->params.ssid_len = 0;
+		memset(params->params.ssid, 0, 32);
+	}
+
+	ret = wl12xx_build_probe_req(wl, ssid, len);
+	if (ret < 0) {
+		wl12xx_error("PROBE request template failed");
+		goto out;
+	}
+
+	ret = wl12xx_cmd_send(wl, CMD_TRIGGER_SCAN_TO, &split_scan,
+			      sizeof(u32));
+	if (ret < 0) {
+		wl12xx_error("Split SCAN failed");
+		goto out;
+	}
+
+	wl12xx_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
+
+	wl->scanning = true;
+
+	ret = wl12xx_cmd_send(wl, CMD_SCAN, params, sizeof(*params));
+	if (ret < 0)
+		wl12xx_error("SCAN failed");
+
+	wl12xx_spi_mem_read(wl, wl->cmd_box_addr, params, sizeof(*params));
+
+	cmd_answer = (struct wl12xx_command *) params;
+	if (cmd_answer->status != CMD_STATUS_SUCCESS) {
+		wl12xx_error("TEST command answer error: %d",
+			     cmd_answer->status);
+		wl->scanning = false;
+		ret = -EIO;
+		goto out;
+	}
+
+out:
+	kfree(params);
+	return ret;
+
+}
+
+static int wl12xx_op_hw_scan(struct ieee80211_hw *hw,
+			     struct cfg80211_scan_request *req)
+{
+	struct wl12xx *wl = hw->priv;
+	int ret;
+	u8 *ssid = NULL;
+	size_t ssid_len = 0;
+
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 hw scan");
+
+	if (req->n_ssids) {
+		ssid = req->ssids[0].ssid;
+		ssid_len = req->ssids[0].ssid_len;
+	}
+
+	mutex_lock(&wl->mutex);
+	ret = wl12xx_hw_scan(hw->priv, ssid, ssid_len, 1, 0, 13, 3);
+	mutex_unlock(&wl->mutex);
+
+	return ret;
+}
+
+static int wl12xx_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct wl12xx *wl = hw->priv;
+	int ret;
+
+	ret = wl12xx_acx_rts_threshold(wl, (u16) value);
+
+	if (ret < 0)
+		wl12xx_warning("wl12xx_op_set_rts_threshold failed: %d", ret);
+
+	return ret;
+}
+
+static void wl12xx_op_bss_info_changed(struct ieee80211_hw *hw,
+				       struct ieee80211_vif *vif,
+				       struct ieee80211_bss_conf *bss_conf,
+				       u32 changed)
+{
+	enum acx_ps_mode mode;
+	struct wl12xx *wl = hw->priv;
+	struct sk_buff *beacon;
+	int ret;
+
+	wl12xx_debug(DEBUG_MAC80211, "mac80211 bss info changed");
+
+	mutex_lock(&wl->mutex);
+
+	if (changed & BSS_CHANGED_ASSOC) {
+		if (bss_conf->assoc) {
+			wl->aid = bss_conf->aid;
+
+			ret = wl12xx_build_ps_poll(wl, wl->aid);
+			if (ret < 0)
+				goto out;
+
+			ret = wl12xx_acx_aid(wl, wl->aid);
+			if (ret < 0)
+				goto out;
+
+			/* If we want to go in PSM but we're not there yet */
+			if (wl->psm_requested && !wl->psm) {
+				mode = STATION_POWER_SAVE_MODE;
+				ret = wl12xx_ps_set_mode(wl, mode);
+				if (ret < 0)
+					goto out;
+			}
+		}
+	}
+	if (changed & BSS_CHANGED_ERP_SLOT) {
+		if (bss_conf->use_short_slot)
+			ret = wl12xx_acx_slot(wl, SLOT_TIME_SHORT);
+		else
+			ret = wl12xx_acx_slot(wl, SLOT_TIME_LONG);
+		if (ret < 0) {
+			wl12xx_warning("Set slot time failed %d", ret);
+			goto out;
+		}
+	}
+
+	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
+		if (bss_conf->use_short_preamble)
+			wl12xx_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
+		else
+			wl12xx_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
+	}
+
+	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
+		if (bss_conf->use_cts_prot)
+			ret = wl12xx_acx_cts_protect(wl, CTSPROTECT_ENABLE);
+		else
+			ret = wl12xx_acx_cts_protect(wl, CTSPROTECT_DISABLE);
+		if (ret < 0) {
+			wl12xx_warning("Set ctsprotect failed %d", ret);
+			goto out;
+		}
+	}
+
+	if (changed & BSS_CHANGED_BSSID) {
+		memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
+
+		ret = wl12xx_build_null_data(wl);
+		if (ret < 0)
+			goto out;
+
+		if (wl->bss_type != BSS_TYPE_IBSS) {
+			ret = wl12xx_cmd_join(wl, wl->bss_type, 5, 100, 1);
+			if (ret < 0)
+				goto out;
+		}
+	}
+
+	if (changed & BSS_CHANGED_BEACON) {
+		beacon = ieee80211_beacon_get(hw, vif);
+		ret = wl12xx_cmd_template_set(wl, CMD_BEACON, beacon->data,
+					      beacon->len);
+
+		if (ret < 0) {
+			dev_kfree_skb(beacon);
+			goto out;
+		}
+
+		ret = wl12xx_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data,
+					      beacon->len);
+
+		dev_kfree_skb(beacon);
+
+		if (ret < 0)
+			goto out;
+
+		ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0);
+
+		if (ret < 0)
+			goto out;
+	}
+
+out:
+	mutex_unlock(&wl->mutex);
+}
+
+
+/* can't be const, mac80211 writes to this */
+static struct ieee80211_rate wl12xx_rates[] = {
+	{ .bitrate = 10,
+	  .hw_value = 0x1,
+	  .hw_value_short = 0x1, },
+	{ .bitrate = 20,
+	  .hw_value = 0x2,
+	  .hw_value_short = 0x2,
+	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 55,
+	  .hw_value = 0x4,
+	  .hw_value_short = 0x4,
+	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 110,
+	  .hw_value = 0x20,
+	  .hw_value_short = 0x20,
+	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 60,
+	  .hw_value = 0x8,
+	  .hw_value_short = 0x8, },
+	{ .bitrate = 90,
+	  .hw_value = 0x10,
+	  .hw_value_short = 0x10, },
+	{ .bitrate = 120,
+	  .hw_value = 0x40,
+	  .hw_value_short = 0x40, },
+	{ .bitrate = 180,
+	  .hw_value = 0x80,
+	  .hw_value_short = 0x80, },
+	{ .bitrate = 240,
+	  .hw_value = 0x200,
+	  .hw_value_short = 0x200, },
+	{ .bitrate = 360,
+	 .hw_value = 0x400,
+	 .hw_value_short = 0x400, },
+	{ .bitrate = 480,
+	  .hw_value = 0x800,
+	  .hw_value_short = 0x800, },
+	{ .bitrate = 540,
+	  .hw_value = 0x1000,
+	  .hw_value_short = 0x1000, },
+};
+
+/* can't be const, mac80211 writes to this */
+static struct ieee80211_channel wl12xx_channels[] = {
+	{ .hw_value = 1, .center_freq = 2412},
+	{ .hw_value = 2, .center_freq = 2417},
+	{ .hw_value = 3, .center_freq = 2422},
+	{ .hw_value = 4, .center_freq = 2427},
+	{ .hw_value = 5, .center_freq = 2432},
+	{ .hw_value = 6, .center_freq = 2437},
+	{ .hw_value = 7, .center_freq = 2442},
+	{ .hw_value = 8, .center_freq = 2447},
+	{ .hw_value = 9, .center_freq = 2452},
+	{ .hw_value = 10, .center_freq = 2457},
+	{ .hw_value = 11, .center_freq = 2462},
+	{ .hw_value = 12, .center_freq = 2467},
+	{ .hw_value = 13, .center_freq = 2472},
+};
+
+/* can't be const, mac80211 writes to this */
+static struct ieee80211_supported_band wl12xx_band_2ghz = {
+	.channels = wl12xx_channels,
+	.n_channels = ARRAY_SIZE(wl12xx_channels),
+	.bitrates = wl12xx_rates,
+	.n_bitrates = ARRAY_SIZE(wl12xx_rates),
+};
+
+static const struct ieee80211_ops wl12xx_ops = {
+	.start = wl12xx_op_start,
+	.stop = wl12xx_op_stop,
+	.add_interface = wl12xx_op_add_interface,
+	.remove_interface = wl12xx_op_remove_interface,
+	.config = wl12xx_op_config,
+	.configure_filter = wl12xx_op_configure_filter,
+	.tx = wl12xx_op_tx,
+	.set_key = wl12xx_op_set_key,
+	.hw_scan = wl12xx_op_hw_scan,
+	.bss_info_changed = wl12xx_op_bss_info_changed,
+	.set_rts_threshold = wl12xx_op_set_rts_threshold,
+};
+
+static int wl12xx_register_hw(struct wl12xx *wl)
+{
+	int ret;
+
+	if (wl->mac80211_registered)
+		return 0;
+
+	SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
+
+	ret = ieee80211_register_hw(wl->hw);
+	if (ret < 0) {
+		wl12xx_error("unable to register mac80211 hw: %d", ret);
+		return ret;
+	}
+
+	wl->mac80211_registered = true;
+
+	wl12xx_notice("loaded");
+
+	return 0;
+}
+
+static int wl12xx_init_ieee80211(struct wl12xx *wl)
+{
+	/* The tx descriptor buffer and the TKIP space */
+	wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc)
+		+ WL12XX_TKIP_IV_SPACE;
+
+	/* unit us */
+	/* FIXME: find a proper value */
+	wl->hw->channel_change_time = 10000;
+
+	wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
+		IEEE80211_HW_NOISE_DBM;
+
+	wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+	wl->hw->wiphy->max_scan_ssids = 1;
+	wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl12xx_band_2ghz;
+
+	SET_IEEE80211_DEV(wl->hw, &wl->spi->dev);
+
+	return 0;
+}
+
+#define WL12XX_DEFAULT_CHANNEL 1
+static int __devinit wl12xx_probe(struct spi_device *spi)
+{
+	struct wl12xx_platform_data *pdata;
+	struct ieee80211_hw *hw;
+	struct wl12xx *wl;
+	int ret, i;
+	static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf};
+
+	pdata = spi->dev.platform_data;
+	if (!pdata) {
+		wl12xx_error("no platform data");
+		return -ENODEV;
+	}
+
+	hw = ieee80211_alloc_hw(sizeof(*wl), &wl12xx_ops);
+	if (!hw) {
+		wl12xx_error("could not alloc ieee80211_hw");
+		return -ENOMEM;
+	}
+
+	wl = hw->priv;
+	memset(wl, 0, sizeof(*wl));
+
+	wl->hw = hw;
+	dev_set_drvdata(&spi->dev, wl);
+	wl->spi = spi;
+
+	wl->data_in_count = 0;
+
+	skb_queue_head_init(&wl->tx_queue);
+
+	INIT_WORK(&wl->tx_work, wl12xx_tx_work);
+	INIT_WORK(&wl->filter_work, wl12xx_filter_work);
+	wl->channel = WL12XX_DEFAULT_CHANNEL;
+	wl->scanning = false;
+	wl->default_key = 0;
+	wl->listen_int = 1;
+	wl->rx_counter = 0;
+	wl->rx_handled = 0;
+	wl->rx_current_buffer = 0;
+	wl->rx_last_id = 0;
+	wl->rx_config = WL12XX_DEFAULT_RX_CONFIG;
+	wl->rx_filter = WL12XX_DEFAULT_RX_FILTER;
+	wl->elp = false;
+	wl->psm = 0;
+	wl->psm_requested = false;
+	wl->tx_queue_stopped = false;
+	wl->power_level = WL12XX_DEFAULT_POWER_LEVEL;
+
+	/* We use the default power on sleep time until we know which chip
+	 * we're using */
+	wl->chip.power_on_sleep = WL12XX_DEFAULT_POWER_ON_SLEEP;
+
+	for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++)
+		wl->tx_frames[i] = NULL;
+
+	wl->next_tx_complete = 0;
+
+	/*
+	 * In case our MAC address is not correctly set,
+	 * we use a random but Nokia MAC.
+	 */
+	memcpy(wl->mac_addr, nokia_oui, 3);
+	get_random_bytes(wl->mac_addr + 3, 3);
+
+	wl->state = WL12XX_STATE_OFF;
+	mutex_init(&wl->mutex);
+
+	wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE;
+	wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE;
+
+	/* This is the only SPI value that we need to set here, the rest
+	 * comes from the board-peripherals file */
+	spi->bits_per_word = 32;
+
+	ret = spi_setup(spi);
+	if (ret < 0) {
+		wl12xx_error("spi_setup failed");
+		goto out_free;
+	}
+
+	wl->set_power = pdata->set_power;
+	if (!wl->set_power) {
+		wl12xx_error("set power function missing in platform data");
+		return -ENODEV;
+	}
+
+	wl->irq = spi->irq;
+	if (wl->irq < 0) {
+		wl12xx_error("irq missing in platform data");
+		return -ENODEV;
+	}
+
+	ret = request_irq(wl->irq, wl12xx_irq, 0, DRIVER_NAME, wl);
+	if (ret < 0) {
+		wl12xx_error("request_irq() failed: %d", ret);
+		goto out_free;
+	}
+
+	set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
+
+	disable_irq(wl->irq);
+
+	ret = wl12xx_init_ieee80211(wl);
+	if (ret)
+		goto out_irq;
+
+	ret = wl12xx_register_hw(wl);
+	if (ret)
+		goto out_irq;
+
+	wl12xx_debugfs_init(wl);
+
+	wl12xx_notice("initialized");
+
+	return 0;
+
+ out_irq:
+	free_irq(wl->irq, wl);
+
+ out_free:
+	ieee80211_free_hw(hw);
+
+	return ret;
+}
+
+static int __devexit wl12xx_remove(struct spi_device *spi)
+{
+	struct wl12xx *wl = dev_get_drvdata(&spi->dev);
+
+	ieee80211_unregister_hw(wl->hw);
+
+	wl12xx_debugfs_exit(wl);
+
+	free_irq(wl->irq, wl);
+	kfree(wl->target_mem_map);
+	kfree(wl->data_path);
+	kfree(wl->fw);
+	wl->fw = NULL;
+	kfree(wl->nvs);
+	wl->nvs = NULL;
+	ieee80211_free_hw(wl->hw);
+
+	return 0;
+}
+
+
+static struct spi_driver wl12xx_spi_driver = {
+	.driver = {
+		.name		= "wl12xx",
+		.bus		= &spi_bus_type,
+		.owner		= THIS_MODULE,
+	},
+
+	.probe		= wl12xx_probe,
+	.remove		= __devexit_p(wl12xx_remove),
+};
+
+static int __init wl12xx_init(void)
+{
+	int ret;
+
+	ret = spi_register_driver(&wl12xx_spi_driver);
+	if (ret < 0) {
+		wl12xx_error("failed to register spi driver: %d", ret);
+		goto out;
+	}
+
+out:
+	return ret;
+}
+
+static void __exit wl12xx_exit(void)
+{
+	spi_unregister_driver(&wl12xx_spi_driver);
+
+	wl12xx_notice("unloaded");
+}
+
+module_init(wl12xx_init);
+module_exit(wl12xx_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Kalle Valo <Kalle.Valo@nokia.com>, "
+		"Luciano Coelho <luciano.coelho@nokia.com>");

drivers/net/wireless/wl12xx/ps.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include "reg.h"
+#include "ps.h"
+#include "spi.h"
+
+#define WL12XX_WAKEUP_TIMEOUT 2000
+
+/* Routines to toggle sleep mode while in ELP */
+void wl12xx_ps_elp_sleep(struct wl12xx *wl)
+{
+	if (wl->elp || !wl->psm)
+		return;
+
+	wl12xx_debug(DEBUG_PSM, "chip to elp");
+
+	wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_SLEEP);
+
+	wl->elp = true;
+}
+
+int wl12xx_ps_elp_wakeup(struct wl12xx *wl)
+{
+	unsigned long timeout;
+	u32 elp_reg;
+
+	if (!wl->elp)
+		return 0;
+
+	wl12xx_debug(DEBUG_PSM, "waking up chip from elp");
+
+	timeout = jiffies + msecs_to_jiffies(WL12XX_WAKEUP_TIMEOUT);
+
+	wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP);
+
+	elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
+
+	/*
+	 * FIXME: we should wait for irq from chip but, as a temporary
+	 * solution to simplify locking, let's poll instead
+	 */
+	while (!(elp_reg & ELPCTRL_WLAN_READY)) {
+		if (time_after(jiffies, timeout)) {
+			wl12xx_error("elp wakeup timeout");
+			return -ETIMEDOUT;
+		}
+		msleep(1);
+		elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
+	}
+
+	wl12xx_debug(DEBUG_PSM, "wakeup time: %u ms",
+		     jiffies_to_msecs(jiffies) -
+		     (jiffies_to_msecs(timeout) - WL12XX_WAKEUP_TIMEOUT));
+
+	wl->elp = false;
+
+	return 0;
+}
+
+static int wl12xx_ps_set_elp(struct wl12xx *wl, bool enable)
+{
+	int ret;
+
+	if (enable) {
+		wl12xx_debug(DEBUG_PSM, "sleep auth psm/elp");
+
+		/*
+		 * FIXME: we should PSM_ELP, but because of firmware wakeup
+		 * problems let's use only PSM_PS
+		 */
+		ret = wl12xx_acx_sleep_auth(wl, WL12XX_PSM_PS);
+		if (ret < 0)
+			return ret;
+
+		wl12xx_ps_elp_sleep(wl);
+	} else {
+		wl12xx_debug(DEBUG_PSM, "sleep auth cam");
+
+		/*
+		 * When the target is in ELP, we can only
+		 * access the ELP control register. Thus,
+		 * we have to wake the target up before
+		 * changing the power authorization.
+		 */
+
+		wl12xx_ps_elp_wakeup(wl);
+
+		ret = wl12xx_acx_sleep_auth(wl, WL12XX_PSM_CAM);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+int wl12xx_ps_set_mode(struct wl12xx *wl, enum acx_ps_mode mode)
+{
+	int ret;
+
+	switch (mode) {
+	case STATION_POWER_SAVE_MODE:
+		wl12xx_debug(DEBUG_PSM, "entering psm");
+		ret = wl12xx_cmd_ps_mode(wl, STATION_POWER_SAVE_MODE);
+		if (ret < 0)
+			return ret;
+
+		ret = wl12xx_ps_set_elp(wl, true);
+		if (ret < 0)
+			return ret;
+
+		wl->psm = 1;
+		break;
+	case STATION_ACTIVE_MODE:
+	default:
+		wl12xx_debug(DEBUG_PSM, "leaving psm");
+		ret = wl12xx_ps_set_elp(wl, false);
+		if (ret < 0)
+			return ret;
+
+		ret = wl12xx_cmd_ps_mode(wl, STATION_ACTIVE_MODE);
+		if (ret < 0)
+			return ret;
+
+		wl->psm = 0;
+		break;
+	}
+
+	return ret;
+}
+

drivers/net/wireless/wl12xx/ps.h

+#ifndef __WL12XX_PS_H__
+#define __WL12XX_PS_H__
+
+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include "wl12xx.h"
+#include "acx.h"
+
+int wl12xx_ps_set_mode(struct wl12xx *wl, enum acx_ps_mode mode);
+void wl12xx_ps_elp_sleep(struct wl12xx *wl);
+int wl12xx_ps_elp_wakeup(struct wl12xx *wl);
+
+
+#endif /* __WL12XX_PS_H__ */

drivers/net/wireless/wl12xx/reg.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __REG_H__
+#define __REG_H__
+
+#include <linux/bitops.h>
+#include "wl12xx.h"
+
+#define REGISTERS_BASE 0x00300000
+#define DRPW_BASE      0x00310000
+
+#define REGISTERS_DOWN_SIZE 0x00008800
+#define REGISTERS_WORK_SIZE 0x0000b000
+
+#define HW_ACCESS_ELP_CTRL_REG_ADDR         0x1FFFC
+
+/* ELP register commands */
+#define ELPCTRL_WAKE_UP             0x1
+#define ELPCTRL_WAKE_UP_WLAN_READY  0x5
+#define ELPCTRL_SLEEP               0x0
+/* ELP WLAN_READY bit */
+#define ELPCTRL_WLAN_READY          0x2
+
+/*
+ * Interrupt registers.
+ * 64 bit interrupt sources registers ws ced.
+ * sme interupts were removed and new ones were added.
+ * Order was changed.
+ */
+#define FIQ_MASK                       (REGISTERS_BASE + 0x0400)
+#define FIQ_MASK_L                     (REGISTERS_BASE + 0x0400)
+#define FIQ_MASK_H                     (REGISTERS_BASE + 0x0404)
+#define FIQ_MASK_SET                   (REGISTERS_BASE + 0x0408)
+#define FIQ_MASK_SET_L                 (REGISTERS_BASE + 0x0408)
+#define FIQ_MASK_SET_H                 (REGISTERS_BASE + 0x040C)
+#define FIQ_MASK_CLR                   (REGISTERS_BASE + 0x0410)
+#define FIQ_MASK_CLR_L                 (REGISTERS_BASE + 0x0410)
+#define FIQ_MASK_CLR_H                 (REGISTERS_BASE + 0x0414)
+#define IRQ_MASK                       (REGISTERS_BASE + 0x0418)
+#define IRQ_MASK_L                     (REGISTERS_BASE + 0x0418)
+#define IRQ_MASK_H                     (REGISTERS_BASE + 0x041C)
+#define IRQ_MASK_SET                   (REGISTERS_BASE + 0x0420)
+#define IRQ_MASK_SET_L                 (REGISTERS_BASE + 0x0420)
+#define IRQ_MASK_SET_H                 (REGISTERS_BASE + 0x0424)
+#define IRQ_MASK_CLR                   (REGISTERS_BASE + 0x0428)
+#define IRQ_MASK_CLR_L                 (REGISTERS_BASE + 0x0428)
+#define IRQ_MASK_CLR_H                 (REGISTERS_BASE + 0x042C)
+#define ECPU_MASK                      (REGISTERS_BASE + 0x0448)
+#define FIQ_STS_L                      (REGISTERS_BASE + 0x044C)
+#define FIQ_STS_H                      (REGISTERS_BASE + 0x0450)
+#define IRQ_STS_L                      (REGISTERS_BASE + 0x0454)
+#define IRQ_STS_H                      (REGISTERS_BASE + 0x0458)
+#define INT_STS_ND                     (REGISTERS_BASE + 0x0464)
+#define INT_STS_RAW_L                  (REGISTERS_BASE + 0x0464)
+#define INT_STS_RAW_H                  (REGISTERS_BASE + 0x0468)
+#define INT_STS_CLR                    (REGISTERS_BASE + 0x04B4)
+#define INT_STS_CLR_L                  (REGISTERS_BASE + 0x04B4)
+#define INT_STS_CLR_H                  (REGISTERS_BASE + 0x04B8)
+#define INT_ACK                        (REGISTERS_BASE + 0x046C)
+#define INT_ACK_L                      (REGISTERS_BASE + 0x046C)
+#define INT_ACK_H                      (REGISTERS_BASE + 0x0470)
+#define INT_TRIG                       (REGISTERS_BASE + 0x0474)
+#define INT_TRIG_L                     (REGISTERS_BASE + 0x0474)
+#define INT_TRIG_H                     (REGISTERS_BASE + 0x0478)
+#define HOST_STS_L                     (REGISTERS_BASE + 0x045C)
+#define HOST_STS_H                     (REGISTERS_BASE + 0x0460)
+#define HOST_MASK                      (REGISTERS_BASE + 0x0430)
+#define HOST_MASK_L                    (REGISTERS_BASE + 0x0430)
+#define HOST_MASK_H                    (REGISTERS_BASE + 0x0434)
+#define HOST_MASK_SET                  (REGISTERS_BASE + 0x0438)
+#define HOST_MASK_SET_L                (REGISTERS_BASE + 0x0438)
+#define HOST_MASK_SET_H                (REGISTERS_BASE + 0x043C)
+#define HOST_MASK_CLR                  (REGISTERS_BASE + 0x0440)
+#define HOST_MASK_CLR_L                (REGISTERS_BASE + 0x0440)
+#define HOST_MASK_CLR_H                (REGISTERS_BASE + 0x0444)
+
+/* Host Interrupts*/
+#define HINT_MASK                      (REGISTERS_BASE + 0x0494)
+#define HINT_MASK_SET                  (REGISTERS_BASE + 0x0498)
+#define HINT_MASK_CLR                  (REGISTERS_BASE + 0x049C)
+#define HINT_STS_ND_MASKED             (REGISTERS_BASE + 0x04A0)
+/*1150 spec calls this HINT_STS_RAW*/
+#define HINT_STS_ND		       (REGISTERS_BASE + 0x04B0)
+#define HINT_STS_CLR                   (REGISTERS_BASE + 0x04A4)
+#define HINT_ACK                       (REGISTERS_BASE + 0x04A8)
+#define HINT_TRIG                      (REGISTERS_BASE + 0x04AC)
+
+/* Device Configuration registers*/
+#define SOR_CFG                        (REGISTERS_BASE + 0x0800)
+#define ECPU_CTRL                      (REGISTERS_BASE + 0x0804)
+#define HI_CFG                         (REGISTERS_BASE + 0x0808)
+#define EE_START                       (REGISTERS_BASE + 0x080C)
+
+#define CHIP_ID_B                      (REGISTERS_BASE + 0x5674)
+
+#define CHIP_ID_1251_PG10	           (0x7010101)
+#define CHIP_ID_1251_PG11	           (0x7020101)
+#define CHIP_ID_1251_PG12	           (0x7030101)
+
+#define ENABLE                         (REGISTERS_BASE + 0x5450)
+
+/* Power Management registers */
+#define ELP_CFG_MODE                   (REGISTERS_BASE + 0x5804)
+#define ELP_CMD                        (REGISTERS_BASE + 0x5808)
+#define PLL_CAL_TIME                   (REGISTERS_BASE + 0x5810)
+#define CLK_REQ_TIME                   (REGISTERS_BASE + 0x5814)
+#define CLK_BUF_TIME                   (REGISTERS_BASE + 0x5818)
+
+#define CFG_PLL_SYNC_CNT               (REGISTERS_BASE + 0x5820)
+
+/* Scratch Pad registers*/
+#define SCR_PAD0                       (REGISTERS_BASE + 0x5608)
+#define SCR_PAD1                       (REGISTERS_BASE + 0x560C)
+#define SCR_PAD2                       (REGISTERS_BASE + 0x5610)
+#define SCR_PAD3                       (REGISTERS_BASE + 0x5614)
+#define SCR_PAD4                       (REGISTERS_BASE + 0x5618)
+#define SCR_PAD4_SET                   (REGISTERS_BASE + 0x561C)
+#define SCR_PAD4_CLR                   (REGISTERS_BASE + 0x5620)
+#define SCR_PAD5                       (REGISTERS_BASE + 0x5624)
+#define SCR_PAD5_SET                   (REGISTERS_BASE + 0x5628)
+#define SCR_PAD5_CLR                   (REGISTERS_BASE + 0x562C)
+#define SCR_PAD6                       (REGISTERS_BASE + 0x5630)
+#define SCR_PAD7                       (REGISTERS_BASE + 0x5634)
+#define SCR_PAD8                       (REGISTERS_BASE + 0x5638)
+#define SCR_PAD9                       (REGISTERS_BASE + 0x563C)
+
+/* Spare registers*/
+#define SPARE_A1                       (REGISTERS_BASE + 0x0994)
+#define SPARE_A2                       (REGISTERS_BASE + 0x0998)
+#define SPARE_A3                       (REGISTERS_BASE + 0x099C)
+#define SPARE_A4                       (REGISTERS_BASE + 0x09A0)
+#define SPARE_A5                       (REGISTERS_BASE + 0x09A4)
+#define SPARE_A6                       (REGISTERS_BASE + 0x09A8)
+#define SPARE_A7                       (REGISTERS_BASE + 0x09AC)
+#define SPARE_A8                       (REGISTERS_BASE + 0x09B0)
+#define SPARE_B1                       (REGISTERS_BASE + 0x5420)
+#define SPARE_B2                       (REGISTERS_BASE + 0x5424)
+#define SPARE_B3                       (REGISTERS_BASE + 0x5428)
+#define SPARE_B4                       (REGISTERS_BASE + 0x542C)
+#define SPARE_B5                       (REGISTERS_BASE + 0x5430)
+#define SPARE_B6                       (REGISTERS_BASE + 0x5434)
+#define SPARE_B7                       (REGISTERS_BASE + 0x5438)
+#define SPARE_B8                       (REGISTERS_BASE + 0x543C)
+
+enum wl12xx_acx_int_reg {
+	ACX_REG_INTERRUPT_TRIG,
+	ACX_REG_INTERRUPT_TRIG_H,
+
+/*=============================================
+  Host Interrupt Mask Register - 32bit (RW)
+  ------------------------------------------
+  Setting a bit in this register masks the
+  corresponding interrupt to the host.
+  0 - RX0		- Rx first dubble buffer Data Interrupt
+  1 - TXD		- Tx Data Interrupt
+  2 - TXXFR		- Tx Transfer Interrupt
+  3 - RX1		- Rx second dubble buffer Data Interrupt
+  4 - RXXFR		- Rx Transfer Interrupt
+  5 - EVENT_A	- Event Mailbox interrupt
+  6 - EVENT_B	- Event Mailbox interrupt
+  7 - WNONHST	- Wake On Host Interrupt
+  8 - TRACE_A	- Debug Trace interrupt
+  9 - TRACE_B	- Debug Trace interrupt
+ 10 - CDCMP		- Command Complete Interrupt
+ 11 -
+ 12 -
+ 13 -
+ 14 - ICOMP		- Initialization Complete Interrupt
+ 16 - SG SE		- Soft Gemini - Sense enable interrupt
+ 17 - SG SD		- Soft Gemini - Sense disable interrupt
+ 18 -			-
+ 19 -			-
+ 20 -			-
+ 21-			-
+ Default: 0x0001
+*==============================================*/
+	ACX_REG_INTERRUPT_MASK,
+
+/*=============================================
+  Host Interrupt Mask Set 16bit, (Write only)
+  ------------------------------------------
+ Setting a bit in this register sets
+ the corresponding bin in ACX_HINT_MASK register
+ without effecting the mask
+ state of other bits (0 = no effect).
+==============================================*/
+	ACX_REG_HINT_MASK_SET,
+
+/*=============================================
+  Host Interrupt Mask Clear 16bit,(Write only)
+  ------------------------------------------
+ Setting a bit in this register clears
+ the corresponding bin in ACX_HINT_MASK register
+ without effecting the mask
+ state of other bits (0 = no effect).
+=============================================*/
+	ACX_REG_HINT_MASK_CLR,
+
+/*=============================================
+  Host Interrupt Status Nondestructive Read
+  16bit,(Read only)
+  ------------------------------------------
+ The host can read this register to determine
+ which interrupts are active.
+ Reading this register doesn't
+ effect its content.
+=============================================*/
+	ACX_REG_INTERRUPT_NO_CLEAR,
+
+/*=============================================
+  Host Interrupt Status Clear on Read  Register
+  16bit,(Read only)
+  ------------------------------------------
+ The host can read this register to determine
+ which interrupts are active.
+ Reading this register clears it,
+ thus making all interrupts inactive.
+==============================================*/
+	ACX_REG_INTERRUPT_CLEAR,
+
+/*=============================================
+  Host Interrupt Acknowledge Register
+  16bit,(Write only)
+  ------------------------------------------
+ The host can set individual bits in this
+ register to clear (acknowledge) the corresp.
+ interrupt status bits in the HINT_STS_CLR and
+ HINT_STS_ND registers, thus making the
+ assotiated interrupt inactive. (0-no effect)
+==============================================*/
+	ACX_REG_INTERRUPT_ACK,
+
+/*===============================================
+   Host Software Reset - 32bit RW
+ ------------------------------------------
+    [31:1] Reserved
+    0  SOFT_RESET Soft Reset  - When this bit is set,
+    it holds the Wlan hardware in a soft reset state.
+    This reset disables all MAC and baseband processor
+    clocks except the CardBus/PCI interface clock.
+    It also initializes all MAC state machines except
+    the host interface. It does not reload the
+    contents of the EEPROM. When this bit is cleared
+    (not self-clearing), the Wlan hardware
+    exits the software reset state.
+===============================================*/
+	ACX_REG_SLV_SOFT_RESET,
+
+/*===============================================
+ EEPROM Burst Read Start  - 32bit RW
+ ------------------------------------------
+ [31:1] Reserved
+ 0  ACX_EE_START -  EEPROM Burst Read Start 0
+ Setting this bit starts a burst read from
+ the external EEPROM.
+ If this bit is set (after reset) before an EEPROM read/write,
+ the burst read starts at EEPROM address 0.
+ Otherwise, it starts at the address
+ following the address of the previous access.
+ TheWlan hardware hardware clears this bit automatically.
+
+ Default: 0x00000000
+*================================================*/
+	ACX_REG_EE_START,
+
+/* Embedded ARM CPU Control */
+
+/*===============================================
+ Halt eCPU   - 32bit RW
+ ------------------------------------------
+ 0 HALT_ECPU Halt Embedded CPU - This bit is the
+ compliment of bit 1 (MDATA2) in the SOR_CFG register.
+ During a hardware reset, this bit holds
+ the inverse of MDATA2.
+ When downloading firmware from the host,
+ set this bit (pull down MDATA2).
+ The host clears this bit after downloading the firmware into
+ zero-wait-state SSRAM.
+ When loading firmware from Flash, clear this bit (pull up MDATA2)
+ so that the eCPU can run the bootloader code in Flash
+ HALT_ECPU eCPU State
+ --------------------
+ 1 halt eCPU
+ 0 enable eCPU
+ ===============================================*/
+	ACX_REG_ECPU_CONTROL,
+
+	ACX_REG_TABLE_LEN
+};
+
+#define ACX_SLV_SOFT_RESET_BIT   BIT(1)
+#define ACX_REG_EEPROM_START_BIT BIT(1)
+
+/* Command/Information Mailbox Pointers */
+
+/*===============================================
+  Command Mailbox Pointer - 32bit RW
+ ------------------------------------------
+ This register holds the start address of
+ the command mailbox located in the Wlan hardware memory.
+ The host must read this pointer after a reset to
+ find the location of the command mailbox.
+ The Wlan hardware initializes the command mailbox
+ pointer with the default address of the command mailbox.
+ The command mailbox pointer is not valid until after
+ the host receives the Init Complete interrupt from
+ the Wlan hardware.
+ ===============================================*/
+#define REG_COMMAND_MAILBOX_PTR				(SCR_PAD0)
+
+/*===============================================
+  Information Mailbox Pointer - 32bit RW
+ ------------------------------------------
+ This register holds the start address of
+ the information mailbox located in the Wlan hardware memory.
+ The host must read this pointer after a reset to find
+ the location of the information mailbox.
+ The Wlan hardware initializes the information mailbox pointer
+ with the default address of the information mailbox.
+ The information mailbox pointer is not valid
+ until after the host receives the Init Complete interrupt from
+ the Wlan hardware.
+ ===============================================*/
+#define REG_EVENT_MAILBOX_PTR				(SCR_PAD1)
+
+
+/* Misc */
+
+#define REG_ENABLE_TX_RX				(ENABLE)
+/*
+ * Rx configuration (filter) information element
+ * ---------------------------------------------
+ */
+#define REG_RX_CONFIG				(RX_CFG)
+#define REG_RX_FILTER				(RX_FILTER_CFG)
+
+
+#define RX_CFG_ENABLE_PHY_HEADER_PLCP	 0x0002
+
+/* promiscuous - receives all valid frames */
+#define RX_CFG_PROMISCUOUS		 0x0008
+
+/* receives frames from any BSSID */
+#define RX_CFG_BSSID			 0x0020
+
+/* receives frames destined to any MAC address */
+#define RX_CFG_MAC			 0x0010
+
+#define RX_CFG_ENABLE_ONLY_MY_DEST_MAC	 0x0010
+#define RX_CFG_ENABLE_ANY_DEST_MAC	 0x0000
+#define RX_CFG_ENABLE_ONLY_MY_BSSID	 0x0020
+#define RX_CFG_ENABLE_ANY_BSSID		 0x0000
+
+/* discards all broadcast frames */
+#define RX_CFG_DISABLE_BCAST		 0x0200
+
+#define RX_CFG_ENABLE_ONLY_MY_SSID	 0x0400
+#define RX_CFG_ENABLE_RX_CMPLT_FCS_ERROR 0x0800
+#define RX_CFG_COPY_RX_STATUS		 0x2000
+#define RX_CFG_TSF			 0x10000
+
+#define RX_CONFIG_OPTION_ANY_DST_MY_BSS	 (RX_CFG_ENABLE_ANY_DEST_MAC | \
+					  RX_CFG_ENABLE_ONLY_MY_BSSID)
+
+#define RX_CONFIG_OPTION_MY_DST_ANY_BSS	 (RX_CFG_ENABLE_ONLY_MY_DEST_MAC\
+					  | RX_CFG_ENABLE_ANY_BSSID)
+
+#define RX_CONFIG_OPTION_ANY_DST_ANY_BSS (RX_CFG_ENABLE_ANY_DEST_MAC | \
+					  RX_CFG_ENABLE_ANY_BSSID)
+
+#define RX_CONFIG_OPTION_MY_DST_MY_BSS	 (RX_CFG_ENABLE_ONLY_MY_DEST_MAC\
+					  | RX_CFG_ENABLE_ONLY_MY_BSSID)
+
+#define RX_CONFIG_OPTION_FOR_SCAN  (RX_CFG_ENABLE_PHY_HEADER_PLCP \
+				    | RX_CFG_ENABLE_RX_CMPLT_FCS_ERROR \
+				    | RX_CFG_COPY_RX_STATUS | RX_CFG_TSF)
+
+#define RX_CONFIG_OPTION_FOR_MEASUREMENT (RX_CFG_ENABLE_ANY_DEST_MAC)
+
+#define RX_CONFIG_OPTION_FOR_JOIN	 (RX_CFG_ENABLE_ONLY_MY_BSSID | \
+					  RX_CFG_ENABLE_ONLY_MY_DEST_MAC)
+
+#define RX_CONFIG_OPTION_FOR_IBSS_JOIN   (RX_CFG_ENABLE_ONLY_MY_SSID | \
+					  RX_CFG_ENABLE_ONLY_MY_DEST_MAC)
+
+#define RX_FILTER_OPTION_DEF	      (CFG_RX_MGMT_EN | CFG_RX_DATA_EN\
+				       | CFG_RX_CTL_EN | CFG_RX_BCN_EN\
+				       | CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
+
+#define RX_FILTER_OPTION_FILTER_ALL	 0
+
+#define RX_FILTER_OPTION_DEF_PRSP_BCN  (CFG_RX_PRSP_EN | CFG_RX_MGMT_EN\
+					| CFG_RX_RCTS_ACK | CFG_RX_BCN_EN)
+
+#define RX_FILTER_OPTION_JOIN	     (CFG_RX_MGMT_EN | CFG_RX_DATA_EN\
+				      | CFG_RX_BCN_EN | CFG_RX_AUTH_EN\
+				      | CFG_RX_ASSOC_EN | CFG_RX_RCTS_ACK\
+				      | CFG_RX_PRSP_EN)
+
+
+/*===============================================
+  Phy regs
+ ===============================================*/
+#define ACX_PHY_ADDR_REG                SBB_ADDR
+#define ACX_PHY_DATA_REG                SBB_DATA
+#define ACX_PHY_CTRL_REG                SBB_CTL
+#define ACX_PHY_REG_WR_MASK             0x00000001ul
+#define ACX_PHY_REG_RD_MASK             0x00000002ul
+
+
+/*===============================================
+ EEPROM Read/Write Request 32bit RW
+ ------------------------------------------
+ 1 EE_READ - EEPROM Read Request 1 - Setting this bit
+ loads a single byte of data into the EE_DATA
+ register from the EEPROM location specified in
+ the EE_ADDR register.
+ The Wlan hardware hardware clears this bit automatically.
+ EE_DATA is valid when this bit is cleared.
+
+ 0 EE_WRITE  - EEPROM Write Request  - Setting this bit
+ writes a single byte of data from the EE_DATA register into the
+ EEPROM location specified in the EE_ADDR register.
+ The Wlan hardware hardware clears this bit automatically.
+*===============================================*/
+#define ACX_EE_CTL_REG                      EE_CTL
+#define EE_WRITE                            0x00000001ul
+#define EE_READ                             0x00000002ul
+
+/*===============================================
+  EEPROM Address  - 32bit RW
+  ------------------------------------------
+  This register specifies the address
+  within the EEPROM from/to which to read/write data.
+  ===============================================*/
+#define ACX_EE_ADDR_REG                     EE_ADDR
+
+/*===============================================
+  EEPROM Data  - 32bit RW
+  ------------------------------------------
+  This register either holds the read 8 bits of
+  data from the EEPROM or the write data
+  to be written to the EEPROM.
+  ===============================================*/
+#define ACX_EE_DATA_REG                     EE_DATA
+
+/*===============================================
+  EEPROM Base Address  - 32bit RW
+  ------------------------------------------
+  This register holds the upper nine bits
+  [23:15] of the 24-bit Wlan hardware memory
+  address for burst reads from EEPROM accesses.
+  The EEPROM provides the lower 15 bits of this address.
+  The MSB of the address from the EEPROM is ignored.
+  ===============================================*/
+#define ACX_EE_CFG                          EE_CFG
+
+/*===============================================
+  GPIO Output Values  -32bit, RW
+  ------------------------------------------
+  [31:16]  Reserved
+  [15: 0]  Specify the output values (at the output driver inputs) for
+  GPIO[15:0], respectively.
+  ===============================================*/
+#define ACX_GPIO_OUT_REG            GPIO_OUT
+#define ACX_MAX_GPIO_LINES          15
+
+/*===============================================
+  Contention window  -32bit, RW
+  ------------------------------------------
+  [31:26]  Reserved
+  [25:16]  Max (0x3ff)
+  [15:07]  Reserved
+  [06:00]  Current contention window value - default is 0x1F
+  ===============================================*/
+#define ACX_CONT_WIND_CFG_REG    CONT_WIND_CFG
+#define ACX_CONT_WIND_MIN_MASK   0x0000007f
+#define ACX_CONT_WIND_MAX        0x03ff0000
+
+/*
+ * Indirect slave register/memory registers
+ * ----------------------------------------
+ */
+#define HW_SLAVE_REG_ADDR_REG		0x00000004
+#define HW_SLAVE_REG_DATA_REG		0x00000008
+#define HW_SLAVE_REG_CTRL_REG		0x0000000c
+
+#define SLAVE_AUTO_INC				0x00010000
+#define SLAVE_NO_AUTO_INC			0x00000000
+#define SLAVE_HOST_LITTLE_ENDIAN	0x00000000
+
+#define HW_SLAVE_MEM_ADDR_REG		SLV_MEM_ADDR
+#define HW_SLAVE_MEM_DATA_REG		SLV_MEM_DATA
+#define HW_SLAVE_MEM_CTRL_REG		SLV_MEM_CTL
+#define HW_SLAVE_MEM_ENDIAN_REG		SLV_END_CTL
+
+#define HW_FUNC_EVENT_INT_EN		0x8000
+#define HW_FUNC_EVENT_MASK_REG		0x00000034
+
+#define ACX_MAC_TIMESTAMP_REG	(MAC_TIMESTAMP)
+
+/*===============================================
+  HI_CFG Interface Configuration Register Values
+  ------------------------------------------
+  ===============================================*/
+#define HI_CFG_UART_ENABLE          0x00000004
+#define HI_CFG_RST232_ENABLE        0x00000008
+#define HI_CFG_CLOCK_REQ_SELECT     0x00000010
+#define HI_CFG_HOST_INT_ENABLE      0x00000020
+#define HI_CFG_VLYNQ_OUTPUT_ENABLE  0x00000040
+#define HI_CFG_HOST_INT_ACTIVE_LOW  0x00000080
+#define HI_CFG_UART_TX_OUT_GPIO_15  0x00000100
+#define HI_CFG_UART_TX_OUT_GPIO_14  0x00000200
+#define HI_CFG_UART_TX_OUT_GPIO_7   0x00000400
+
+/*
+ * NOTE: USE_ACTIVE_HIGH compilation flag should be defined in makefile
+ *       for platforms using active high interrupt level
+ */
+#ifdef USE_ACTIVE_HIGH
+#define HI_CFG_DEF_VAL              \
+	(HI_CFG_UART_ENABLE |        \
+	HI_CFG_RST232_ENABLE |      \
+	HI_CFG_CLOCK_REQ_SELECT |   \
+	HI_CFG_HOST_INT_ENABLE)
+#else
+#define HI_CFG_DEF_VAL              \
+	(HI_CFG_UART_ENABLE |        \
+	HI_CFG_RST232_ENABLE |      \
+	HI_CFG_CLOCK_REQ_SELECT |   \
+	HI_CFG_HOST_INT_ENABLE)
+
+#endif
+
+#define REF_FREQ_19_2                       0
+#define REF_FREQ_26_0                       1
+#define REF_FREQ_38_4                       2
+#define REF_FREQ_40_0                       3
+#define REF_FREQ_33_6                       4
+#define REF_FREQ_NUM                        5
+
+#define LUT_PARAM_INTEGER_DIVIDER           0
+#define LUT_PARAM_FRACTIONAL_DIVIDER        1
+#define LUT_PARAM_ATTN_BB                   2
+#define LUT_PARAM_ALPHA_BB                  3
+#define LUT_PARAM_STOP_TIME_BB              4
+#define LUT_PARAM_BB_PLL_LOOP_FILTER        5
+#define LUT_PARAM_NUM                       6
+
+#define ACX_EEPROMLESS_IND_REG              (SCR_PAD4)
+#define USE_EEPROM                          0
+#define SOFT_RESET_MAX_TIME                 1000000
+#define SOFT_RESET_STALL_TIME               1000
+#define NVS_DATA_BUNDARY_ALIGNMENT          4
+
+
+/* Firmware image load chunk size */
+#define CHUNK_SIZE          512
+
+/* Firmware image header size */
+#define FW_HDR_SIZE 8
+
+#define ECPU_CONTROL_HALT					0x00000101
+
+
+/******************************************************************************
+
+    CHANNELS, BAND & REG DOMAINS definitions
+
+******************************************************************************/
+
+
+enum {
+	RADIO_BAND_2_4GHZ = 0,  /* 2.4 Ghz band */
+	RADIO_BAND_5GHZ = 1,    /* 5 Ghz band */
+	RADIO_BAND_JAPAN_4_9_GHZ = 2,
+	DEFAULT_BAND = RADIO_BAND_2_4GHZ,
+	INVALID_BAND = 0xFE,
+	MAX_RADIO_BANDS = 0xFF
+};
+
+enum {
+	NO_RATE      = 0,
+	RATE_1MBPS   = 0x0A,
+	RATE_2MBPS   = 0x14,
+	RATE_5_5MBPS = 0x37,
+	RATE_6MBPS   = 0x0B,
+	RATE_9MBPS   = 0x0F,
+	RATE_11MBPS  = 0x6E,
+	RATE_12MBPS  = 0x0A,
+	RATE_18MBPS  = 0x0E,
+	RATE_22MBPS  = 0xDC,
+	RATE_24MBPS  = 0x09,
+	RATE_36MBPS  = 0x0D,
+	RATE_48MBPS  = 0x08,
+	RATE_54MBPS  = 0x0C
+};
+
+enum {
+	RATE_INDEX_1MBPS   =  0,
+	RATE_INDEX_2MBPS   =  1,
+	RATE_INDEX_5_5MBPS =  2,
+	RATE_INDEX_6MBPS   =  3,
+	RATE_INDEX_9MBPS   =  4,
+	RATE_INDEX_11MBPS  =  5,
+	RATE_INDEX_12MBPS  =  6,
+	RATE_INDEX_18MBPS  =  7,
+	RATE_INDEX_22MBPS  =  8,
+	RATE_INDEX_24MBPS  =  9,
+	RATE_INDEX_36MBPS  =  10,
+	RATE_INDEX_48MBPS  =  11,
+	RATE_INDEX_54MBPS  =  12,
+	RATE_INDEX_MAX     =  RATE_INDEX_54MBPS,
+	MAX_RATE_INDEX,
+	INVALID_RATE_INDEX = MAX_RATE_INDEX,
+	RATE_INDEX_ENUM_MAX_SIZE = 0x7FFFFFFF
+};
+
+enum {
+	RATE_MASK_1MBPS = 0x1,
+	RATE_MASK_2MBPS = 0x2,
+	RATE_MASK_5_5MBPS = 0x4,
+	RATE_MASK_11MBPS = 0x20,
+};
+
+#define SHORT_PREAMBLE_BIT   BIT(0) /* CCK or Barker depending on the rate */
+#define OFDM_RATE_BIT        BIT(6)
+#define PBCC_RATE_BIT        BIT(7)
+
+enum {
+	CCK_LONG = 0,
+	CCK_SHORT = SHORT_PREAMBLE_BIT,
+	PBCC_LONG = PBCC_RATE_BIT,
+	PBCC_SHORT = PBCC_RATE_BIT | SHORT_PREAMBLE_BIT,
+	OFDM = OFDM_RATE_BIT
+};
+
+/******************************************************************************
+
+Transmit-Descriptor RATE-SET field definitions...
+
+Define a new "Rate-Set" for TX path that incorporates the
+Rate & Modulation info into a single 16-bit field.
+
+TxdRateSet_t:
+b15   - Indicates Preamble type (1=SHORT, 0=LONG).
+	Notes:
+	Must be LONG (0) for 1Mbps rate.
+	Does not apply (set to 0) for RevG-OFDM rates.
+b14   - Indicates PBCC encoding (1=PBCC, 0=not).
+	Notes:
+	Does not apply (set to 0) for rates 1 and 2 Mbps.
+	Does not apply (set to 0) for RevG-OFDM rates.
+b13    - Unused (set to 0).
+b12-b0 - Supported Rate indicator bits as defined below.
+
+******************************************************************************/
+
+
+#define TNETW1251_CHIP_ID_PG1_0         0x07010101
+#define TNETW1251_CHIP_ID_PG1_1         0x07020101
+#define TNETW1251_CHIP_ID_PG1_2	        0x07030101
+
+/*************************************************************************
+
+    Interrupt Trigger Register (Host -> WiLink)
+
+**************************************************************************/
+
+/* Hardware to Embedded CPU Interrupts - first 32-bit register set */
+
+/*
+ * Host Command Interrupt. Setting this bit masks
+ * the interrupt that the host issues to inform
+ * the FW that it has sent a command
+ * to the Wlan hardware Command Mailbox.
+ */
+#define INTR_TRIG_CMD       BIT(0)
+
+/*
+ * Host Event Acknowlegde Interrupt. The host
+ * sets this bit to acknowledge that it received
+ * the unsolicited information from the event
+ * mailbox.
+ */
+#define INTR_TRIG_EVENT_ACK BIT(1)
+
+/*
+ * The host sets this bit to inform the Wlan
+ * FW that a TX packet is in the XFER
+ * Buffer #0.
+ */
+#define INTR_TRIG_TX_PROC0 BIT(2)
+
+/*
+ * The host sets this bit to inform the FW
+ * that it read a packet from RX XFER
+ * Buffer #0.
+ */
+#define INTR_TRIG_RX_PROC0 BIT(3)
+
+#define INTR_TRIG_DEBUG_ACK BIT(4)
+
+#define INTR_TRIG_STATE_CHANGED BIT(5)
+
+
+/* Hardware to Embedded CPU Interrupts - second 32-bit register set */
+
+/*
+ * The host sets this bit to inform the FW
+ * that it read a packet from RX XFER
+ * Buffer #1.
+ */
+#define INTR_TRIG_RX_PROC1 BIT(17)
+
+/*
+ * The host sets this bit to inform the Wlan
+ * hardware that a TX packet is in the XFER
+ * Buffer #1.
+ */
+#define INTR_TRIG_TX_PROC1 BIT(18)
+
+#endif

drivers/net/wireless/wl12xx/rx.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/skbuff.h>
+#include <net/mac80211.h>
+
+#include "wl12xx.h"
+#include "reg.h"
+#include "spi.h"
+#include "rx.h"
+
+static void wl12xx_rx_header(struct wl12xx *wl,
+			     struct wl12xx_rx_descriptor *desc)
+{
+	u32 rx_packet_ring_addr;
+
+	rx_packet_ring_addr = wl->data_path->rx_packet_ring_addr;
+	if (wl->rx_current_buffer)
+		rx_packet_ring_addr += wl->data_path->rx_packet_ring_chunk_size;
+
+	wl12xx_spi_mem_read(wl, rx_packet_ring_addr, desc,
+			    sizeof(struct wl12xx_rx_descriptor));
+}
+
+static void wl12xx_rx_status(struct wl12xx *wl,
+			     struct wl12xx_rx_descriptor *desc,
+			     struct ieee80211_rx_status *status,
+			     u8 beacon)
+{
+	memset(status, 0, sizeof(struct ieee80211_rx_status));
+
+	status->band = IEEE80211_BAND_2GHZ;
+	status->mactime = desc->timestamp;
+
+	/*
+	 * The rx status timestamp is a 32 bits value while the TSF is a
+	 * 64 bits one.
+	 * For IBSS merging, TSF is mandatory, so we have to get it
+	 * somehow, so we ask for ACX_TSF_INFO.
+	 * That could be moved to the get_tsf() hook, but unfortunately,
+	 * this one must be atomic, while our SPI routines can sleep.
+	 */
+	if ((wl->bss_type == BSS_TYPE_IBSS) && beacon) {
+		u64 mactime;
+		int ret;
+		struct wl12xx_command cmd;
+		struct acx_tsf_info *tsf_info;
+
+		memset(&cmd, 0, sizeof(cmd));
+
+		ret = wl12xx_cmd_interrogate(wl, ACX_TSF_INFO,
+					     sizeof(struct acx_tsf_info),
+					     &cmd);
+		if (ret < 0) {
+			wl12xx_warning("ACX_FW_REV interrogate failed");
+			return;
+		}
+
+		tsf_info = (struct acx_tsf_info *)&(cmd.parameters);
+
+		mactime = tsf_info->current_tsf_lsb |
+			(tsf_info->current_tsf_msb << 31);
+
+		status->mactime = mactime;
+	}
+
+	status->signal = desc->rssi;
+	status->qual = (desc->rssi - WL12XX_RX_MIN_RSSI) * 100 /
+		(WL12XX_RX_MAX_RSSI - WL12XX_RX_MIN_RSSI);
+	status->qual = min(status->qual, 100);
+	status->qual = max(status->qual, 0);
+
+	/*
+	 * FIXME: guessing that snr needs to be divided by two, otherwise
+	 * the values don't make any sense
+	 */
+	status->noise = desc->rssi - desc->snr / 2;
+
+	status->freq = ieee80211_channel_to_frequency(desc->channel);
+
+	status->flag |= RX_FLAG_TSFT;
+
+	if (desc->flags & RX_DESC_ENCRYPTION_MASK) {
+		status->flag |= RX_FLAG_IV_STRIPPED | RX_FLAG_MMIC_STRIPPED;
+
+		if (likely(!(desc->flags & RX_DESC_DECRYPT_FAIL)))
+			status->flag |= RX_FLAG_DECRYPTED;
+
+		if (unlikely(desc->flags & RX_DESC_MIC_FAIL))
+			status->flag |= RX_FLAG_MMIC_ERROR;
+	}
+
+	if (unlikely(!(desc->flags & RX_DESC_VALID_FCS)))
+		status->flag |= RX_FLAG_FAILED_FCS_CRC;
+
+
+	/* FIXME: set status->rate_idx */
+}
+
+static void wl12xx_rx_body(struct wl12xx *wl,
+			   struct wl12xx_rx_descriptor *desc)
+{
+	struct sk_buff *skb;
+	struct ieee80211_rx_status status;
+	u8 *rx_buffer, beacon = 0;
+	u16 length, *fc;
+	u32 curr_id, last_id_inc, rx_packet_ring_addr;
+
+	length = WL12XX_RX_ALIGN(desc->length  - PLCP_HEADER_LENGTH);
+	curr_id = (desc->flags & RX_DESC_SEQNUM_MASK) >> RX_DESC_PACKETID_SHIFT;
+	last_id_inc = (wl->rx_last_id + 1) % (RX_MAX_PACKET_ID + 1);
+
+	if (last_id_inc != curr_id) {
+		wl12xx_warning("curr ID:%d, last ID inc:%d",
+			       curr_id, last_id_inc);
+		wl->rx_last_id = curr_id;
+	} else {
+		wl->rx_last_id = last_id_inc;
+	}
+
+	rx_packet_ring_addr = wl->data_path->rx_packet_ring_addr +
+		sizeof(struct wl12xx_rx_descriptor) + 20;
+	if (wl->rx_current_buffer)
+		rx_packet_ring_addr += wl->data_path->rx_packet_ring_chunk_size;
+
+	skb = dev_alloc_skb(length);
+	if (!skb) {
+		wl12xx_error("Couldn't allocate RX frame");
+		return;
+	}
+
+	rx_buffer = skb_put(skb, length);
+	wl12xx_spi_mem_read(wl, rx_packet_ring_addr, rx_buffer, length);
+
+	/* The actual lenght doesn't include the target's alignment */
+	skb->len = desc->length  - PLCP_HEADER_LENGTH;
+
+	fc = (u16 *)skb->data;
+
+	if ((*fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON)
+		beacon = 1;
+
+	wl12xx_rx_status(wl, desc, &status, beacon);
+
+	wl12xx_debug(DEBUG_RX, "rx skb 0x%p: %d B %s", skb, skb->len,
+		     beacon ? "beacon" : "");
+
+	ieee80211_rx(wl->hw, skb, &status);
+}
+
+static void wl12xx_rx_ack(struct wl12xx *wl)
+{
+	u32 data, addr;
+
+	if (wl->rx_current_buffer) {
+		addr = ACX_REG_INTERRUPT_TRIG_H;
+		data = INTR_TRIG_RX_PROC1;
+	} else {
+		addr = ACX_REG_INTERRUPT_TRIG;
+		data = INTR_TRIG_RX_PROC0;
+	}
+
+	wl12xx_reg_write32(wl, addr, data);
+
+	/* Toggle buffer ring */
+	wl->rx_current_buffer = !wl->rx_current_buffer;
+}
+
+
+void wl12xx_rx(struct wl12xx *wl)
+{
+	struct wl12xx_rx_descriptor rx_desc;
+
+	if (wl->state != WL12XX_STATE_ON)
+		return;
+
+	/* We first read the frame's header */
+	wl12xx_rx_header(wl, &rx_desc);
+
+	/* Now we can read the body */
+	wl12xx_rx_body(wl, &rx_desc);
+
+	/* Finally, we need to ACK the RX */
+	wl12xx_rx_ack(wl);
+
+	return;
+}

drivers/net/wireless/wl12xx/rx.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_RX_H__
+#define __WL12XX_RX_H__
+
+#include <linux/bitops.h>
+
+/*
+ * RX PATH
+ *
+ * The Rx path uses a double buffer and an rx_contro structure, each located
+ * at a fixed address in the device memory. The host keeps track of which
+ * buffer is available and alternates between them on a per packet basis.
+ * The size of each of the two buffers is large enough to hold the longest
+ * 802.3 packet.
+ * The RX path goes like that:
+ * 1) The target generates an interrupt each time a new packet is received.
+ *   There are 2 RX interrupts, one for each buffer.
+ * 2) The host reads the received packet from one of the double buffers.
+ * 3) The host triggers a target interrupt.
+ * 4) The target prepares the next RX packet.
+ */
+
+#define WL12XX_RX_MAX_RSSI -30
+#define WL12XX_RX_MIN_RSSI -95
+
+#define WL12XX_RX_ALIGN_TO 4
+#define WL12XX_RX_ALIGN(len) (((len) + WL12XX_RX_ALIGN_TO - 1) & \
+			     ~(WL12XX_RX_ALIGN_TO - 1))
+
+#define SHORT_PREAMBLE_BIT   BIT(0)
+#define OFDM_RATE_BIT        BIT(6)
+#define PBCC_RATE_BIT        BIT(7)
+
+#define PLCP_HEADER_LENGTH 8
+#define RX_DESC_PACKETID_SHIFT 11
+#define RX_MAX_PACKET_ID 3
+
+#define RX_DESC_VALID_FCS         0x0001
+#define RX_DESC_MATCH_RXADDR1     0x0002
+#define RX_DESC_MCAST             0x0004
+#define RX_DESC_STAINTIM          0x0008
+#define RX_DESC_VIRTUAL_BM        0x0010
+#define RX_DESC_BCAST             0x0020
+#define RX_DESC_MATCH_SSID        0x0040
+#define RX_DESC_MATCH_BSSID       0x0080
+#define RX_DESC_ENCRYPTION_MASK   0x0300
+#define RX_DESC_MEASURMENT        0x0400
+#define RX_DESC_SEQNUM_MASK       0x1800
+#define	RX_DESC_MIC_FAIL	  0x2000
+#define	RX_DESC_DECRYPT_FAIL	  0x4000
+
+struct wl12xx_rx_descriptor {
+	u32 timestamp; /* In microseconds */
+	u16 length; /* Paylod length, including headers */
+	u16 flags;
+
+	/*
+	 * 0 - 802.11
+	 * 1 - 802.3
+	 * 2 - IP
+	 * 3 - Raw Codec
+	 */
+	u8 type;
+
+	/*
+	 * Recevied Rate:
+	 * 0x0A - 1MBPS
+	 * 0x14 - 2MBPS
+	 * 0x37 - 5_5MBPS
+	 * 0x0B - 6MBPS
+	 * 0x0F - 9MBPS
+	 * 0x6E - 11MBPS
+	 * 0x0A - 12MBPS
+	 * 0x0E - 18MBPS
+	 * 0xDC - 22MBPS
+	 * 0x09 - 24MBPS
+	 * 0x0D - 36MBPS
+	 * 0x08 - 48MBPS
+	 * 0x0C - 54MBPS
+	 */
+	u8 rate;
+
+	u8 mod_pre; /* Modulation and preamble */
+	u8 channel;
+
+	/*
+	 * 0 - 2.4 Ghz
+	 * 1 - 5 Ghz
+	 */
+	u8 band;
+
+	s8 rssi; /* in dB */
+	u8 rcpi; /* in dB */
+	u8 snr; /* in dB */
+} __attribute__ ((packed));
+
+void wl12xx_rx(struct wl12xx *wl);
+
+#endif

drivers/net/wireless/wl12xx/spi.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/crc7.h>
+#include <linux/spi/spi.h>
+
+#include "wl12xx.h"
+#include "wl12xx_80211.h"
+#include "reg.h"
+#include "spi.h"
+#include "ps.h"
+
+static int wl12xx_translate_reg_addr(struct wl12xx *wl, int addr)
+{
+	/* If the address is lower than REGISTERS_BASE, it means that this is
+	 * a chip-specific register address, so look it up in the registers
+	 * table */
+	if (addr < REGISTERS_BASE) {
+		/* Make sure we don't go over the table */
+		if (addr >= ACX_REG_TABLE_LEN) {
+			wl12xx_error("address out of range (%d)", addr);
+			return -EINVAL;
+		}
+		addr = wl->chip.acx_reg_table[addr];
+	}
+
+	return addr - wl->physical_reg_addr + wl->virtual_reg_addr;
+}
+
+static int wl12xx_translate_mem_addr(struct wl12xx *wl, int addr)
+{
+	return addr - wl->physical_mem_addr + wl->virtual_mem_addr;
+}
+
+
+void wl12xx_spi_reset(struct wl12xx *wl)
+{
+	u8 *cmd;
+	struct spi_transfer t;
+	struct spi_message m;
+
+	cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
+	if (!cmd) {
+		wl12xx_error("could not allocate cmd for spi reset");
+		return;
+	}
+
+	memset(&t, 0, sizeof(t));
+	spi_message_init(&m);
+
+	memset(cmd, 0xff, WSPI_INIT_CMD_LEN);
+
+	t.tx_buf = cmd;
+	t.len = WSPI_INIT_CMD_LEN;
+	spi_message_add_tail(&t, &m);
+
+	spi_sync(wl->spi, &m);
+
+	wl12xx_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN);
+}
+
+void wl12xx_spi_init(struct wl12xx *wl)
+{
+	u8 crc[WSPI_INIT_CMD_CRC_LEN], *cmd;
+	struct spi_transfer t;
+	struct spi_message m;
+
+	cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
+	if (!cmd) {
+		wl12xx_error("could not allocate cmd for spi init");
+		return;
+	}
+
+	memset(crc, 0, sizeof(crc));
+	memset(&t, 0, sizeof(t));
+	spi_message_init(&m);
+
+	/*
+	 * Set WSPI_INIT_COMMAND
+	 * the data is being send from the MSB to LSB
+	 */
+	cmd[2] = 0xff;
+	cmd[3] = 0xff;
+	cmd[1] = WSPI_INIT_CMD_START | WSPI_INIT_CMD_TX;
+	cmd[0] = 0;
+	cmd[7] = 0;
+	cmd[6] |= HW_ACCESS_WSPI_INIT_CMD_MASK << 3;
+	cmd[6] |= HW_ACCESS_WSPI_FIXED_BUSY_LEN & WSPI_INIT_CMD_FIXEDBUSY_LEN;
+
+	if (HW_ACCESS_WSPI_FIXED_BUSY_LEN == 0)
+		cmd[5] |=  WSPI_INIT_CMD_DIS_FIXEDBUSY;
+	else
+		cmd[5] |= WSPI_INIT_CMD_EN_FIXEDBUSY;
+
+	cmd[5] |= WSPI_INIT_CMD_IOD | WSPI_INIT_CMD_IP | WSPI_INIT_CMD_CS
+		| WSPI_INIT_CMD_WSPI | WSPI_INIT_CMD_WS;
+
+	crc[0] = cmd[1];
+	crc[1] = cmd[0];
+	crc[2] = cmd[7];
+	crc[3] = cmd[6];
+	crc[4] = cmd[5];
+
+	cmd[4] |= crc7(0, crc, WSPI_INIT_CMD_CRC_LEN) << 1;
+	cmd[4] |= WSPI_INIT_CMD_END;
+
+	t.tx_buf = cmd;
+	t.len = WSPI_INIT_CMD_LEN;
+	spi_message_add_tail(&t, &m);
+
+	spi_sync(wl->spi, &m);
+
+	wl12xx_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN);
+}
+
+/* Set the SPI partitions to access the chip addresses
+ *
+ * There are two VIRTUAL (SPI) partitions (the memory partition and the
+ * registers partition), which are mapped to two different areas of the
+ * PHYSICAL (hardware) memory.  This function also makes other checks to
+ * ensure that the partitions are not overlapping.  In the diagram below, the
+ * memory partition comes before the register partition, but the opposite is
+ * also supported.
+ *
+ *                               PHYSICAL address
+ *                                     space
+ *
+ *                                    |    |
+ *                                 ...+----+--> mem_start
+ *          VIRTUAL address     ...   |    |
+ *               space       ...      |    | [PART_0]
+ *                        ...         |    |
+ * 0x00000000 <--+----+...         ...+----+--> mem_start + mem_size
+ *               |    |         ...   |    |
+ *               |MEM |      ...      |    |
+ *               |    |   ...         |    |
+ *  part_size <--+----+...            |    | {unused area)
+ *               |    |   ...         |    |
+ *               |REG |      ...      |    |
+ *  part_size    |    |         ...   |    |
+ *      +     <--+----+...         ...+----+--> reg_start
+ *  reg_size              ...         |    |
+ *                           ...      |    | [PART_1]
+ *                              ...   |    |
+ *                                 ...+----+--> reg_start + reg_size
+ *                                    |    |
+ *
+ */
+void wl12xx_set_partition(struct wl12xx *wl,
+			  u32 mem_start, u32 mem_size,
+			  u32 reg_start, u32 reg_size)
+{
+	u8 tx_buf[sizeof(u32) + 2 * sizeof(struct wl12xx_partition)];
+	struct wl12xx_partition *partition;
+	struct spi_transfer t;
+	struct spi_message m;
+	u32 *cmd;
+	size_t len;
+	int addr;
+
+	spi_message_init(&m);
+	memset(&t, 0, sizeof(t));
+	memset(tx_buf, 0, sizeof(tx_buf));
+
+	cmd = (u32 *) tx_buf;
+	partition = (struct wl12xx_partition *) (tx_buf + sizeof(u32));
+	addr = HW_ACCESS_PART0_SIZE_ADDR;
+	len = 2 * sizeof(struct wl12xx_partition);
+
+	*cmd |= WSPI_CMD_WRITE;
+	*cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
+	*cmd |= addr & WSPI_CMD_BYTE_ADDR;
+
+	wl12xx_debug(DEBUG_SPI, "mem_start %08X mem_size %08X",
+		     mem_start, mem_size);
+	wl12xx_debug(DEBUG_SPI, "reg_start %08X reg_size %08X",
+		     reg_start, reg_size);
+
+	/* Make sure that the two partitions together don't exceed the
+	 * address range */
+	if ((mem_size + reg_size) > HW_ACCESS_MEMORY_MAX_RANGE) {
+		wl12xx_debug(DEBUG_SPI, "Total size exceeds maximum virtual"
+			     " address range.  Truncating partition[0].");
+		mem_size = HW_ACCESS_MEMORY_MAX_RANGE - reg_size;
+		wl12xx_debug(DEBUG_SPI, "mem_start %08X mem_size %08X",
+			     mem_start, mem_size);
+		wl12xx_debug(DEBUG_SPI, "reg_start %08X reg_size %08X",
+			     reg_start, reg_size);
+	}
+
+	if ((mem_start < reg_start) &&
+	    ((mem_start + mem_size) > reg_start)) {
+		/* Guarantee that the memory partition doesn't overlap the
+		 * registers partition */
+		wl12xx_debug(DEBUG_SPI, "End of partition[0] is "
+			     "overlapping partition[1].  Adjusted.");
+		mem_size = reg_start - mem_start;
+		wl12xx_debug(DEBUG_SPI, "mem_start %08X mem_size %08X",
+			     mem_start, mem_size);
+		wl12xx_debug(DEBUG_SPI, "reg_start %08X reg_size %08X",
+			     reg_start, reg_size);
+	} else if ((reg_start < mem_start) &&
+		   ((reg_start + reg_size) > mem_start)) {
+		/* Guarantee that the register partition doesn't overlap the
+		 * memory partition */
+		wl12xx_debug(DEBUG_SPI, "End of partition[1] is"
+			     " overlapping partition[0].  Adjusted.");
+		reg_size = mem_start - reg_start;
+		wl12xx_debug(DEBUG_SPI, "mem_start %08X mem_size %08X",
+			     mem_start, mem_size);
+		wl12xx_debug(DEBUG_SPI, "reg_start %08X reg_size %08X",
+			     reg_start, reg_size);
+	}
+
+	partition[0].start = mem_start;
+	partition[0].size  = mem_size;
+	partition[1].start = reg_start;
+	partition[1].size  = reg_size;
+
+	wl->physical_mem_addr = mem_start;
+	wl->physical_reg_addr = reg_start;
+
+	wl->virtual_mem_addr = 0;
+	wl->virtual_reg_addr = mem_size;
+
+	t.tx_buf = tx_buf;
+	t.len = sizeof(tx_buf);
+	spi_message_add_tail(&t, &m);
+
+	spi_sync(wl->spi, &m);
+}
+
+void wl12xx_spi_read(struct wl12xx *wl, int addr, void *buf,
+		     size_t len)
+{
+	struct spi_transfer t[3];
+	struct spi_message m;
+	char busy_buf[TNETWIF_READ_OFFSET_BYTES];
+	u32 cmd;
+
+	cmd = 0;
+	cmd |= WSPI_CMD_READ;
+	cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
+	cmd |= addr & WSPI_CMD_BYTE_ADDR;
+
+	spi_message_init(&m);
+	memset(t, 0, sizeof(t));
+
+	t[0].tx_buf = &cmd;
+	t[0].len = 4;
+	spi_message_add_tail(&t[0], &m);
+
+	/* Busy and non busy words read */
+	t[1].rx_buf = busy_buf;
+	t[1].len = TNETWIF_READ_OFFSET_BYTES;
+	spi_message_add_tail(&t[1], &m);
+
+	t[2].rx_buf = buf;
+	t[2].len = len;
+	spi_message_add_tail(&t[2], &m);
+
+	spi_sync(wl->spi, &m);
+
+	/* FIXME: check busy words */
+
+	wl12xx_dump(DEBUG_SPI, "spi_read cmd -> ", &cmd, sizeof(cmd));
+	wl12xx_dump(DEBUG_SPI, "spi_read buf <- ", buf, len);
+}
+
+void wl12xx_spi_write(struct wl12xx *wl, int addr, void *buf,
+		      size_t len)
+{
+	struct spi_transfer t[2];
+	struct spi_message m;
+	u32 cmd;
+
+	cmd = 0;
+	cmd |= WSPI_CMD_WRITE;
+	cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
+	cmd |= addr & WSPI_CMD_BYTE_ADDR;
+
+	spi_message_init(&m);
+	memset(t, 0, sizeof(t));
+
+	t[0].tx_buf = &cmd;
+	t[0].len = sizeof(cmd);
+	spi_message_add_tail(&t[0], &m);
+
+	t[1].tx_buf = buf;
+	t[1].len = len;
+	spi_message_add_tail(&t[1], &m);
+
+	spi_sync(wl->spi, &m);
+
+	wl12xx_dump(DEBUG_SPI, "spi_write cmd -> ", &cmd, sizeof(cmd));
+	wl12xx_dump(DEBUG_SPI, "spi_write buf -> ", buf, len);
+}
+
+void wl12xx_spi_mem_read(struct wl12xx *wl, int addr, void *buf,
+			 size_t len)
+{
+	int physical;
+
+	physical = wl12xx_translate_mem_addr(wl, addr);
+
+	wl12xx_spi_read(wl, physical, buf, len);
+}
+
+void wl12xx_spi_mem_write(struct wl12xx *wl, int addr, void *buf,
+			  size_t len)
+{
+	int physical;
+
+	physical = wl12xx_translate_mem_addr(wl, addr);
+
+	wl12xx_spi_write(wl, physical, buf, len);
+}
+
+u32 wl12xx_mem_read32(struct wl12xx *wl, int addr)
+{
+	return wl12xx_read32(wl, wl12xx_translate_mem_addr(wl, addr));
+}
+
+void wl12xx_mem_write32(struct wl12xx *wl, int addr, u32 val)
+{
+	wl12xx_write32(wl, wl12xx_translate_mem_addr(wl, addr), val);
+}
+
+u32 wl12xx_reg_read32(struct wl12xx *wl, int addr)
+{
+	return wl12xx_read32(wl, wl12xx_translate_reg_addr(wl, addr));
+}
+
+void wl12xx_reg_write32(struct wl12xx *wl, int addr, u32 val)
+{
+	wl12xx_write32(wl, wl12xx_translate_reg_addr(wl, addr), val);
+}

drivers/net/wireless/wl12xx/spi.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_SPI_H__
+#define __WL12XX_SPI_H__
+
+#include "cmd.h"
+#include "acx.h"
+#include "reg.h"
+
+#define HW_ACCESS_MEMORY_MAX_RANGE		0x1FFC0
+
+#define HW_ACCESS_PART0_SIZE_ADDR           0x1FFC0
+#define HW_ACCESS_PART0_START_ADDR          0x1FFC4
+#define HW_ACCESS_PART1_SIZE_ADDR           0x1FFC8
+#define HW_ACCESS_PART1_START_ADDR          0x1FFCC
+
+#define HW_ACCESS_REGISTER_SIZE             4
+
+#define HW_ACCESS_PRAM_MAX_RANGE		0x3c000
+
+#define WSPI_CMD_READ                 0x40000000
+#define WSPI_CMD_WRITE                0x00000000
+#define WSPI_CMD_FIXED                0x20000000
+#define WSPI_CMD_BYTE_LENGTH          0x1FFE0000
+#define WSPI_CMD_BYTE_LENGTH_OFFSET   17
+#define WSPI_CMD_BYTE_ADDR            0x0001FFFF
+
+#define WSPI_INIT_CMD_CRC_LEN       5
+
+#define WSPI_INIT_CMD_START         0x00
+#define WSPI_INIT_CMD_TX            0x40
+/* the extra bypass bit is sampled by the TNET as '1' */
+#define WSPI_INIT_CMD_BYPASS_BIT    0x80
+#define WSPI_INIT_CMD_FIXEDBUSY_LEN 0x07
+#define WSPI_INIT_CMD_EN_FIXEDBUSY  0x80
+#define WSPI_INIT_CMD_DIS_FIXEDBUSY 0x00
+#define WSPI_INIT_CMD_IOD           0x40
+#define WSPI_INIT_CMD_IP            0x20
+#define WSPI_INIT_CMD_CS            0x10
+#define WSPI_INIT_CMD_WS            0x08
+#define WSPI_INIT_CMD_WSPI          0x01
+#define WSPI_INIT_CMD_END           0x01
+
+#define WSPI_INIT_CMD_LEN           8
+
+#define TNETWIF_READ_OFFSET_BYTES  8
+#define HW_ACCESS_WSPI_FIXED_BUSY_LEN \
+		((TNETWIF_READ_OFFSET_BYTES - 4) / sizeof(u32))
+#define HW_ACCESS_WSPI_INIT_CMD_MASK  0
+
+
+/* Raw target IO, address is not translated */
+void wl12xx_spi_read(struct wl12xx *wl, int addr, void *buf, size_t len);
+void wl12xx_spi_write(struct wl12xx *wl, int addr, void *buf, size_t len);
+
+/* Memory target IO, address is tranlated to partition 0 */
+void wl12xx_spi_mem_read(struct wl12xx *wl, int addr, void *buf, size_t len);
+void wl12xx_spi_mem_write(struct wl12xx *wl, int addr, void *buf, size_t len);
+u32 wl12xx_mem_read32(struct wl12xx *wl, int addr);
+void wl12xx_mem_write32(struct wl12xx *wl, int addr, u32 val);
+
+/* Registers IO */
+u32 wl12xx_reg_read32(struct wl12xx *wl, int addr);
+void wl12xx_reg_write32(struct wl12xx *wl, int addr, u32 val);
+
+/* INIT and RESET words */
+void wl12xx_spi_reset(struct wl12xx *wl);
+void wl12xx_spi_init(struct wl12xx *wl);
+void wl12xx_set_partition(struct wl12xx *wl,
+			  u32 part_start, u32 part_size,
+			  u32 reg_start,  u32 reg_size);
+
+static inline u32 wl12xx_read32(struct wl12xx *wl, int addr)
+{
+	u32 response;
+
+	wl12xx_spi_read(wl, addr, &response, sizeof(u32));
+
+	return response;
+}
+
+static inline void wl12xx_write32(struct wl12xx *wl, int addr, u32 val)
+{
+	wl12xx_spi_write(wl, addr, &val, sizeof(u32));
+}
+
+#endif /* __WL12XX_SPI_H__ */

drivers/net/wireless/wl12xx/tx.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "wl12xx.h"
+#include "reg.h"
+#include "spi.h"
+#include "tx.h"
+#include "ps.h"
+
+static bool wl12xx_tx_double_buffer_busy(struct wl12xx *wl, u32 data_out_count)
+{
+	int used, data_in_count;
+
+	data_in_count = wl->data_in_count;
+
+	if (data_in_count < data_out_count)
+		/* data_in_count has wrapped */
+		data_in_count += TX_STATUS_DATA_OUT_COUNT_MASK + 1;
+
+	used = data_in_count - data_out_count;
+
+	WARN_ON(used < 0);
+	WARN_ON(used > DP_TX_PACKET_RING_CHUNK_NUM);
+
+	if (used >= DP_TX_PACKET_RING_CHUNK_NUM)
+		return true;
+	else
+		return false;
+}
+
+static int wl12xx_tx_path_status(struct wl12xx *wl)
+{
+	u32 status, addr, data_out_count;
+	bool busy;
+
+	addr = wl->data_path->tx_control_addr;
+	status = wl12xx_mem_read32(wl, addr);
+	data_out_count = status & TX_STATUS_DATA_OUT_COUNT_MASK;
+	busy = wl12xx_tx_double_buffer_busy(wl, data_out_count);
+
+	if (busy)
+		return -EBUSY;
+
+	return 0;
+}
+
+static int wl12xx_tx_id(struct wl12xx *wl, struct sk_buff *skb)
+{
+	int i;
+
+	for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++)
+		if (wl->tx_frames[i] == NULL) {
+			wl->tx_frames[i] = skb;
+			return i;
+		}
+
+	return -EBUSY;
+}
+
+static void wl12xx_tx_control(struct tx_double_buffer_desc *tx_hdr,
+			      struct ieee80211_tx_info *control, u16 fc)
+{
+	*(u16 *)&tx_hdr->control = 0;
+
+	tx_hdr->control.rate_policy = 0;
+
+	/* 802.11 packets */
+	tx_hdr->control.packet_type = 0;
+
+	if (control->flags & IEEE80211_TX_CTL_NO_ACK)
+		tx_hdr->control.ack_policy = 1;
+
+	tx_hdr->control.tx_complete = 1;
+
+	if ((fc & IEEE80211_FTYPE_DATA) &&
+	    ((fc & IEEE80211_STYPE_QOS_DATA) ||
+	     (fc & IEEE80211_STYPE_QOS_NULLFUNC)))
+		tx_hdr->control.qos = 1;
+}
+
+/* RSN + MIC = 8 + 8 = 16 bytes (worst case - AES). */
+#define MAX_MSDU_SECURITY_LENGTH      16
+#define MAX_MPDU_SECURITY_LENGTH      16
+#define WLAN_QOS_HDR_LEN              26
+#define MAX_MPDU_HEADER_AND_SECURITY  (MAX_MPDU_SECURITY_LENGTH + \
+				       WLAN_QOS_HDR_LEN)
+#define HW_BLOCK_SIZE                 252
+static void wl12xx_tx_frag_block_num(struct tx_double_buffer_desc *tx_hdr)
+{
+	u16 payload_len, frag_threshold, mem_blocks;
+	u16 num_mpdus, mem_blocks_per_frag;
+
+	frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
+	tx_hdr->frag_threshold = cpu_to_le16(frag_threshold);
+
+	payload_len = tx_hdr->length + MAX_MSDU_SECURITY_LENGTH;
+
+	if (payload_len > frag_threshold) {
+		mem_blocks_per_frag =
+			((frag_threshold + MAX_MPDU_HEADER_AND_SECURITY) /
+			 HW_BLOCK_SIZE) + 1;
+		num_mpdus = payload_len / frag_threshold;
+		mem_blocks = num_mpdus * mem_blocks_per_frag;
+		payload_len -= num_mpdus * frag_threshold;
+		num_mpdus++;
+
+	} else {
+		mem_blocks_per_frag = 0;
+		mem_blocks = 0;
+		num_mpdus = 1;
+	}
+
+	mem_blocks += (payload_len / HW_BLOCK_SIZE) + 1;
+
+	if (num_mpdus > 1)
+		mem_blocks += min(num_mpdus, mem_blocks_per_frag);
+
+	tx_hdr->num_mem_blocks = mem_blocks;
+}
+
+static int wl12xx_tx_fill_hdr(struct wl12xx *wl, struct sk_buff *skb,
+			      struct ieee80211_tx_info *control)
+{
+	struct tx_double_buffer_desc *tx_hdr;
+	struct ieee80211_rate *rate;
+	int id;
+	u16 fc;
+
+	if (!skb)
+		return -EINVAL;
+
+	id = wl12xx_tx_id(wl, skb);
+	if (id < 0)
+		return id;
+
+	fc = *(u16 *)skb->data;
+	tx_hdr = (struct tx_double_buffer_desc *) skb_push(skb,
+							   sizeof(*tx_hdr));
+
+	tx_hdr->length = cpu_to_le16(skb->len - sizeof(*tx_hdr));
+	rate = ieee80211_get_tx_rate(wl->hw, control);
+	tx_hdr->rate = cpu_to_le16(rate->hw_value);
+	tx_hdr->expiry_time = cpu_to_le32(1 << 16);
+	tx_hdr->id = id;
+
+	/* FIXME: how to get the correct queue id? */
+	tx_hdr->xmit_queue = 0;
+
+	wl12xx_tx_control(tx_hdr, control, fc);
+	wl12xx_tx_frag_block_num(tx_hdr);
+
+	return 0;
+}
+
+/* We copy the packet to the target */
+static int wl12xx_tx_send_packet(struct wl12xx *wl, struct sk_buff *skb,
+				 struct ieee80211_tx_info *control)
+{
+	struct tx_double_buffer_desc *tx_hdr;
+	int len;
+	u32 addr;
+
+	if (!skb)
+		return -EINVAL;
+
+	tx_hdr = (struct tx_double_buffer_desc *) skb->data;
+
+	if (control->control.hw_key &&
+	    control->control.hw_key->alg == ALG_TKIP) {
+		int hdrlen;
+		u16 fc;
+		u8 *pos;
+
+		fc = *(u16 *)(skb->data + sizeof(*tx_hdr));
+		tx_hdr->length += WL12XX_TKIP_IV_SPACE;
+
+		hdrlen = ieee80211_hdrlen(fc);
+
+		pos = skb_push(skb, WL12XX_TKIP_IV_SPACE);
+		memmove(pos, pos + WL12XX_TKIP_IV_SPACE,
+			sizeof(*tx_hdr) + hdrlen);
+	}
+
+	/* Revisit. This is a workaround for getting non-aligned packets.
+	   This happens at least with EAPOL packets from the user space.
+	   Our DMA requires packets to be aligned on a 4-byte boundary.
+	*/
+	if (unlikely((long)skb->data & 0x03)) {
+		int offset = (4 - (long)skb->data) & 0x03;
+		wl12xx_debug(DEBUG_TX, "skb offset %d", offset);
+
+		/* check whether the current skb can be used */
+		if (!skb_cloned(skb) && (skb_tailroom(skb) >= offset)) {
+			unsigned char *src = skb->data;
+
+			/* align the buffer on a 4-byte boundary */
+			skb_reserve(skb, offset);
+			memmove(skb->data, src, skb->len);
+		} else {
+			wl12xx_info("No handler, fixme!");
+			return -EINVAL;
+		}
+	}
+
+	/* Our skb->data at this point includes the HW header */
+	len = WL12XX_TX_ALIGN(skb->len);
+
+	if (wl->data_in_count & 0x1)
+		addr = wl->data_path->tx_packet_ring_addr +
+			wl->data_path->tx_packet_ring_chunk_size;
+	else
+		addr = wl->data_path->tx_packet_ring_addr;
+
+	wl12xx_spi_mem_write(wl, addr, skb->data, len);
+
+	wl12xx_debug(DEBUG_TX, "tx id %u skb 0x%p payload %u rate 0x%x",
+		     tx_hdr->id, skb, tx_hdr->length, tx_hdr->rate);
+
+	return 0;
+}
+
+static void wl12xx_tx_trigger(struct wl12xx *wl)
+{
+	u32 data, addr;
+
+	if (wl->data_in_count & 0x1) {
+		addr = ACX_REG_INTERRUPT_TRIG_H;
+		data = INTR_TRIG_TX_PROC1;
+	} else {
+		addr = ACX_REG_INTERRUPT_TRIG;
+		data = INTR_TRIG_TX_PROC0;
+	}
+
+	wl12xx_reg_write32(wl, addr, data);
+
+	/* Bumping data in */
+	wl->data_in_count = (wl->data_in_count + 1) &
+		TX_STATUS_DATA_OUT_COUNT_MASK;
+}
+
+/* caller must hold wl->mutex */
+static int wl12xx_tx_frame(struct wl12xx *wl, struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info;
+	int ret = 0;
+	u8 idx;
+
+	info = IEEE80211_SKB_CB(skb);
+
+	if (info->control.hw_key) {
+		idx = info->control.hw_key->hw_key_idx;
+		if (unlikely(wl->default_key != idx)) {
+			ret = wl12xx_acx_default_key(wl, idx);
+			if (ret < 0)
+				return ret;
+		}
+	}
+
+	ret = wl12xx_tx_path_status(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_tx_fill_hdr(wl, skb, info);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_tx_send_packet(wl, skb, info);
+	if (ret < 0)
+		return ret;
+
+	wl12xx_tx_trigger(wl);
+
+	return ret;
+}
+
+void wl12xx_tx_work(struct work_struct *work)
+{
+	struct wl12xx *wl = container_of(work, struct wl12xx, tx_work);
+	struct sk_buff *skb;
+	bool woken_up = false;
+	int ret;
+
+	mutex_lock(&wl->mutex);
+
+	if (unlikely(wl->state == WL12XX_STATE_OFF))
+		goto out;
+
+	while ((skb = skb_dequeue(&wl->tx_queue))) {
+		if (!woken_up) {
+			wl12xx_ps_elp_wakeup(wl);
+			woken_up = true;
+		}
+
+		ret = wl12xx_tx_frame(wl, skb);
+		if (ret == -EBUSY) {
+			/* firmware buffer is full, stop queues */
+			wl12xx_debug(DEBUG_TX, "tx_work: fw buffer full, "
+				     "stop queues");
+			ieee80211_stop_queues(wl->hw);
+			wl->tx_queue_stopped = true;
+			skb_queue_head(&wl->tx_queue, skb);
+			goto out;
+		} else if (ret < 0) {
+			dev_kfree_skb(skb);
+			goto out;
+		}
+	}
+
+out:
+	if (woken_up)
+		wl12xx_ps_elp_sleep(wl);
+
+	mutex_unlock(&wl->mutex);
+}
+
+static const char *wl12xx_tx_parse_status(u8 status)
+{
+	/* 8 bit status field, one character per bit plus null */
+	static char buf[9];
+	int i = 0;
+
+	memset(buf, 0, sizeof(buf));
+
+	if (status & TX_DMA_ERROR)
+		buf[i++] = 'm';
+	if (status & TX_DISABLED)
+		buf[i++] = 'd';
+	if (status & TX_RETRY_EXCEEDED)
+		buf[i++] = 'r';
+	if (status & TX_TIMEOUT)
+		buf[i++] = 't';
+	if (status & TX_KEY_NOT_FOUND)
+		buf[i++] = 'k';
+	if (status & TX_ENCRYPT_FAIL)
+		buf[i++] = 'e';
+	if (status & TX_UNAVAILABLE_PRIORITY)
+		buf[i++] = 'p';
+
+	/* bit 0 is unused apparently */
+
+	return buf;
+}
+
+static void wl12xx_tx_packet_cb(struct wl12xx *wl,
+				struct tx_result *result)
+{
+	struct ieee80211_tx_info *info;
+	struct sk_buff *skb;
+	int hdrlen, ret;
+	u8 *frame;
+
+	skb = wl->tx_frames[result->id];
+	if (skb == NULL) {
+		wl12xx_error("SKB for packet %d is NULL", result->id);
+		return;
+	}
+
+	info = IEEE80211_SKB_CB(skb);
+
+	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
+	    (result->status == TX_SUCCESS))
+		info->flags |= IEEE80211_TX_STAT_ACK;
+
+	info->status.rates[0].count = result->ack_failures + 1;
+	wl->stats.retry_count += result->ack_failures;
+
+	/*
+	 * We have to remove our private TX header before pushing
+	 * the skb back to mac80211.
+	 */
+	frame = skb_pull(skb, sizeof(struct tx_double_buffer_desc));
+	if (info->control.hw_key &&
+	    info->control.hw_key->alg == ALG_TKIP) {
+		hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+		memmove(frame + WL12XX_TKIP_IV_SPACE, frame, hdrlen);
+		skb_pull(skb, WL12XX_TKIP_IV_SPACE);
+	}
+
+	wl12xx_debug(DEBUG_TX, "tx status id %u skb 0x%p failures %u rate 0x%x"
+		     " status 0x%x (%s)",
+		     result->id, skb, result->ack_failures, result->rate,
+		     result->status, wl12xx_tx_parse_status(result->status));
+
+
+	ieee80211_tx_status(wl->hw, skb);
+
+	wl->tx_frames[result->id] = NULL;
+
+	if (wl->tx_queue_stopped) {
+		wl12xx_debug(DEBUG_TX, "cb: queue was stopped");
+
+		skb = skb_dequeue(&wl->tx_queue);
+
+		/* The skb can be NULL because tx_work might have been
+		   scheduled before the queue was stopped making the
+		   queue empty */
+
+		if (skb) {
+			ret = wl12xx_tx_frame(wl, skb);
+			if (ret == -EBUSY) {
+				/* firmware buffer is still full */
+				wl12xx_debug(DEBUG_TX, "cb: fw buffer "
+					     "still full");
+				skb_queue_head(&wl->tx_queue, skb);
+				return;
+			} else if (ret < 0) {
+				dev_kfree_skb(skb);
+				return;
+			}
+		}
+
+		wl12xx_debug(DEBUG_TX, "cb: waking queues");
+		ieee80211_wake_queues(wl->hw);
+		wl->tx_queue_stopped = false;
+	}
+}
+
+/* Called upon reception of a TX complete interrupt */
+void wl12xx_tx_complete(struct wl12xx *wl)
+{
+	int i, result_index, num_complete = 0;
+	struct tx_result result[FW_TX_CMPLT_BLOCK_SIZE], *result_ptr;
+
+	if (unlikely(wl->state != WL12XX_STATE_ON))
+		return;
+
+	/* First we read the result */
+	wl12xx_spi_mem_read(wl, wl->data_path->tx_complete_addr,
+			    result, sizeof(result));
+
+	result_index = wl->next_tx_complete;
+
+	for (i = 0; i < ARRAY_SIZE(result); i++) {
+		result_ptr = &result[result_index];
+
+		if (result_ptr->done_1 == 1 &&
+		    result_ptr->done_2 == 1) {
+			wl12xx_tx_packet_cb(wl, result_ptr);
+
+			result_ptr->done_1 = 0;
+			result_ptr->done_2 = 0;
+
+			result_index = (result_index + 1) &
+				(FW_TX_CMPLT_BLOCK_SIZE - 1);
+			num_complete++;
+		} else {
+			break;
+		}
+	}
+
+	/* Every completed frame needs to be acknowledged */
+	if (num_complete) {
+		/*
+		 * If we've wrapped, we have to clear
+		 * the results in 2 steps.
+		 */
+		if (result_index > wl->next_tx_complete) {
+			/* Only 1 write is needed */
+			wl12xx_spi_mem_write(wl,
+					     wl->data_path->tx_complete_addr +
+					     (wl->next_tx_complete *
+					      sizeof(struct tx_result)),
+					     &result[wl->next_tx_complete],
+					     num_complete *
+					     sizeof(struct tx_result));
+
+
+		} else if (result_index < wl->next_tx_complete) {
+			/* 2 writes are needed */
+			wl12xx_spi_mem_write(wl,
+					     wl->data_path->tx_complete_addr +
+					     (wl->next_tx_complete *
+					      sizeof(struct tx_result)),
+					     &result[wl->next_tx_complete],
+					     (FW_TX_CMPLT_BLOCK_SIZE -
+					      wl->next_tx_complete) *
+					     sizeof(struct tx_result));
+
+			wl12xx_spi_mem_write(wl,
+					     wl->data_path->tx_complete_addr,
+					     result,
+					     (num_complete -
+					      FW_TX_CMPLT_BLOCK_SIZE +
+					      wl->next_tx_complete) *
+					     sizeof(struct tx_result));
+
+		} else {
+			/* We have to write the whole array */
+			wl12xx_spi_mem_write(wl,
+					     wl->data_path->tx_complete_addr,
+					     result,
+					     FW_TX_CMPLT_BLOCK_SIZE *
+					     sizeof(struct tx_result));
+		}
+
+	}
+
+	wl->next_tx_complete = result_index;
+}
+
+/* caller must hold wl->mutex */
+void wl12xx_tx_flush(struct wl12xx *wl)
+{
+	int i;
+	struct sk_buff *skb;
+	struct ieee80211_tx_info *info;
+
+	/* TX failure */
+/* 	control->flags = 0; FIXME */
+
+	while ((skb = skb_dequeue(&wl->tx_queue))) {
+		info = IEEE80211_SKB_CB(skb);
+
+		wl12xx_debug(DEBUG_TX, "flushing skb 0x%p", skb);
+
+		if (!(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS))
+				continue;
+
+		ieee80211_tx_status(wl->hw, skb);
+	}
+
+	for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++)
+		if (wl->tx_frames[i] != NULL) {
+			skb = wl->tx_frames[i];
+			info = IEEE80211_SKB_CB(skb);
+
+			if (!(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS))
+				continue;
+
+			ieee80211_tx_status(wl->hw, skb);
+			wl->tx_frames[i] = NULL;
+		}
+}

drivers/net/wireless/wl12xx/tx.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_TX_H__
+#define __WL12XX_TX_H__
+
+#include <linux/bitops.h>
+
+/*
+ *
+ * TX PATH
+ *
+ * The Tx path uses a double buffer and a tx_control structure, each located
+ * at a fixed address in the device's memory. On startup, the host retrieves
+ * the pointers to these addresses. A double buffer allows for continuous data
+ * flow towards the device. The host keeps track of which buffer is available
+ * and alternates between these two buffers on a per packet basis.
+ *
+ * The size of each of the two buffers is large enough to hold the longest
+ * 802.3 packet - maximum size Ethernet packet + header + descriptor.
+ * TX complete indication will be received a-synchronously in a TX done cyclic
+ * buffer which is composed of 16 tx_result descriptors structures and is used
+ * in a cyclic manner.
+ *
+ * The TX (HOST) procedure is as follows:
+ * 1. Read the Tx path status, that will give the data_out_count.
+ * 2. goto 1, if not possible.
+ *    i.e. if data_in_count - data_out_count >= HwBuffer size (2 for double
+ *    buffer).
+ * 3. Copy the packet (preceded by double_buffer_desc), if possible.
+ *    i.e. if data_in_count - data_out_count < HwBuffer size (2 for double
+ *    buffer).
+ * 4. increment data_in_count.
+ * 5. Inform the firmware by generating a firmware internal interrupt.
+ * 6. FW will increment data_out_count after it reads the buffer.
+ *
+ * The TX Complete procedure:
+ * 1. To get a TX complete indication the host enables the tx_complete flag in
+ *    the TX descriptor Structure.
+ * 2. For each packet with a Tx Complete field set, the firmware adds the
+ *    transmit results to the cyclic buffer (txDoneRing) and sets both done_1
+ *    and done_2 to 1 to indicate driver ownership.
+ * 3. The firmware sends a Tx Complete interrupt to the host to trigger the
+ *    host to process the new data. Note: interrupt will be send per packet if
+ *    TX complete indication was requested in tx_control or per crossing
+ *    aggregation threshold.
+ * 4. After receiving the Tx Complete interrupt, the host reads the
+ *    TxDescriptorDone information in a cyclic manner and clears both done_1
+ *    and done_2 fields.
+ *
+ */
+
+#define TX_COMPLETE_REQUIRED_BIT	0x80
+#define TX_STATUS_DATA_OUT_COUNT_MASK   0xf
+#define WL12XX_TX_ALIGN_TO 4
+#define WL12XX_TX_ALIGN(len) (((len) + WL12XX_TX_ALIGN_TO - 1) & \
+			     ~(WL12XX_TX_ALIGN_TO - 1))
+#define WL12XX_TKIP_IV_SPACE 4
+
+struct tx_control {
+	/* Rate Policy (class) index */
+	unsigned rate_policy:3;
+
+	/* When set, no ack policy is expected */
+	unsigned ack_policy:1;
+
+	/*
+	 * Packet type:
+	 * 0 -> 802.11
+	 * 1 -> 802.3
+	 * 2 -> IP
+	 * 3 -> raw codec
+	 */
+	unsigned packet_type:2;
+
+	/* If set, this is a QoS-Null or QoS-Data frame */
+	unsigned qos:1;
+
+	/*
+	 * If set, the target triggers the tx complete INT
+	 * upon frame sending completion.
+	 */
+	unsigned tx_complete:1;
+
+	/* 2 bytes padding before packet header */
+	unsigned xfer_pad:1;
+
+	unsigned reserved:7;
+} __attribute__ ((packed));
+
+
+struct tx_double_buffer_desc {
+	/* Length of payload, including headers. */
+	u16 length;
+
+	/*
+	 * A bit mask that specifies the initial rate to be used
+	 * Possible values are:
+	 * 0x0001 - 1Mbits
+	 * 0x0002 - 2Mbits
+	 * 0x0004 - 5.5Mbits
+	 * 0x0008 - 6Mbits
+	 * 0x0010 - 9Mbits
+	 * 0x0020 - 11Mbits
+	 * 0x0040 - 12Mbits
+	 * 0x0080 - 18Mbits
+	 * 0x0100 - 22Mbits
+	 * 0x0200 - 24Mbits
+	 * 0x0400 - 36Mbits
+	 * 0x0800 - 48Mbits
+	 * 0x1000 - 54Mbits
+	 */
+	u16 rate;
+
+	/* Time in us that a packet can spend in the target */
+	u32 expiry_time;
+
+	/* index of the TX queue used for this packet */
+	u8 xmit_queue;
+
+	/* Used to identify a packet */
+	u8 id;
+
+	struct tx_control control;
+
+	/*
+	 * The FW should cut the packet into fragments
+	 * of this size.
+	 */
+	u16 frag_threshold;
+
+	/* Numbers of HW queue blocks to be allocated */
+	u8 num_mem_blocks;
+
+	u8 reserved;
+} __attribute__ ((packed));
+
+enum {
+	TX_SUCCESS              = 0,
+	TX_DMA_ERROR            = BIT(7),
+	TX_DISABLED             = BIT(6),
+	TX_RETRY_EXCEEDED       = BIT(5),
+	TX_TIMEOUT              = BIT(4),
+	TX_KEY_NOT_FOUND        = BIT(3),
+	TX_ENCRYPT_FAIL         = BIT(2),
+	TX_UNAVAILABLE_PRIORITY = BIT(1),
+};
+
+struct tx_result {
+	/*
+	 * Ownership synchronization between the host and
+	 * the firmware. If done_1 and done_2 are cleared,
+	 * owned by the FW (no info ready).
+	 */
+	u8 done_1;
+
+	/* same as double_buffer_desc->id */
+	u8 id;
+
+	/*
+	 * Total air access duration consumed by this
+	 * packet, including all retries and overheads.
+	 */
+	u16 medium_usage;
+
+	/* Total media delay (from 1st EDCA AIFS counter until TX Complete). */
+	u32 medium_delay;
+
+	/* Time between host xfer and tx complete */
+	u32 fw_hnadling_time;
+
+	/* The LS-byte of the last TKIP sequence number. */
+	u8 lsb_seq_num;
+
+	/* Retry count */
+	u8 ack_failures;
+
+	/* At which rate we got a ACK */
+	u16 rate;
+
+	u16 reserved;
+
+	/* TX_* */
+	u8 status;
+
+	/* See done_1 */
+	u8 done_2;
+} __attribute__ ((packed));
+
+void wl12xx_tx_work(struct work_struct *work);
+void wl12xx_tx_complete(struct wl12xx *wl);
+void wl12xx_tx_flush(struct wl12xx *wl);
+
+#endif

drivers/net/wireless/wl12xx/wl1251.c

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "wl1251.h"
+#include "reg.h"
+#include "spi.h"
+#include "boot.h"
+#include "event.h"
+#include "acx.h"
+#include "tx.h"
+#include "rx.h"
+#include "ps.h"
+#include "init.h"
+
+static struct wl12xx_partition_set wl1251_part_table[PART_TABLE_LEN] = {
+	[PART_DOWN] = {
+		.mem = {
+			.start = 0x00000000,
+			.size  = 0x00016800
+		},
+		.reg = {
+			.start = REGISTERS_BASE,
+			.size  = REGISTERS_DOWN_SIZE
+		},
+	},
+
+	[PART_WORK] = {
+		.mem = {
+			.start = 0x00028000,
+			.size  = 0x00014000
+		},
+		.reg = {
+			.start = REGISTERS_BASE,
+			.size  = REGISTERS_WORK_SIZE
+		},
+	},
+
+	/* WL1251 doesn't use the DRPW partition, so we don't set it here */
+};
+
+static enum wl12xx_acx_int_reg wl1251_acx_reg_table[ACX_REG_TABLE_LEN] = {
+	[ACX_REG_INTERRUPT_TRIG]     = (REGISTERS_BASE + 0x0474),
+	[ACX_REG_INTERRUPT_TRIG_H]   = (REGISTERS_BASE + 0x0478),
+	[ACX_REG_INTERRUPT_MASK]     = (REGISTERS_BASE + 0x0494),
+	[ACX_REG_HINT_MASK_SET]      = (REGISTERS_BASE + 0x0498),
+	[ACX_REG_HINT_MASK_CLR]      = (REGISTERS_BASE + 0x049C),
+	[ACX_REG_INTERRUPT_NO_CLEAR] = (REGISTERS_BASE + 0x04B0),
+	[ACX_REG_INTERRUPT_CLEAR]    = (REGISTERS_BASE + 0x04A4),
+	[ACX_REG_INTERRUPT_ACK]      = (REGISTERS_BASE + 0x04A8),
+	[ACX_REG_SLV_SOFT_RESET]     = (REGISTERS_BASE + 0x0000),
+	[ACX_REG_EE_START]           = (REGISTERS_BASE + 0x080C),
+	[ACX_REG_ECPU_CONTROL]       = (REGISTERS_BASE + 0x0804)
+};
+
+static int wl1251_upload_firmware(struct wl12xx *wl)
+{
+	struct wl12xx_partition_set *p_table = wl->chip.p_table;
+	int addr, chunk_num, partition_limit;
+	size_t fw_data_len;
+	u8 *p;
+
+	/* whal_FwCtrl_LoadFwImageSm() */
+
+	wl12xx_debug(DEBUG_BOOT, "chip id before fw upload: 0x%x",
+		     wl12xx_reg_read32(wl, CHIP_ID_B));
+
+	/* 10.0 check firmware length and set partition */
+	fw_data_len =  (wl->fw[4] << 24) | (wl->fw[5] << 16) |
+		(wl->fw[6] << 8) | (wl->fw[7]);
+
+	wl12xx_debug(DEBUG_BOOT, "fw_data_len %d chunk_size %d", fw_data_len,
+		CHUNK_SIZE);
+
+	if ((fw_data_len % 4) != 0) {
+		wl12xx_error("firmware length not multiple of four");
+		return -EIO;
+	}
+
+	wl12xx_set_partition(wl,
+			     p_table[PART_DOWN].mem.start,
+			     p_table[PART_DOWN].mem.size,
+			     p_table[PART_DOWN].reg.start,
+			     p_table[PART_DOWN].reg.size);
+
+	/* 10.1 set partition limit and chunk num */
+	chunk_num = 0;
+	partition_limit = p_table[PART_DOWN].mem.size;
+
+	while (chunk_num < fw_data_len / CHUNK_SIZE) {
+		/* 10.2 update partition, if needed */
+		addr = p_table[PART_DOWN].mem.start +
+			(chunk_num + 2) * CHUNK_SIZE;
+		if (addr > partition_limit) {
+			addr = p_table[PART_DOWN].mem.start +
+				chunk_num * CHUNK_SIZE;
+			partition_limit = chunk_num * CHUNK_SIZE +
+				p_table[PART_DOWN].mem.size;
+			wl12xx_set_partition(wl,
+					     addr,
+					     p_table[PART_DOWN].mem.size,
+					     p_table[PART_DOWN].reg.start,
+					     p_table[PART_DOWN].reg.size);
+		}
+
+		/* 10.3 upload the chunk */
+		addr = p_table[PART_DOWN].mem.start + chunk_num * CHUNK_SIZE;
+		p = wl->fw + FW_HDR_SIZE + chunk_num * CHUNK_SIZE;
+		wl12xx_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x",
+			     p, addr);
+		wl12xx_spi_mem_write(wl, addr, p, CHUNK_SIZE);
+
+		chunk_num++;
+	}
+
+	/* 10.4 upload the last chunk */
+	addr = p_table[PART_DOWN].mem.start + chunk_num * CHUNK_SIZE;
+	p = wl->fw + FW_HDR_SIZE + chunk_num * CHUNK_SIZE;
+	wl12xx_debug(DEBUG_BOOT, "uploading fw last chunk (%d B) 0x%p to 0x%x",
+		     fw_data_len % CHUNK_SIZE, p, addr);
+	wl12xx_spi_mem_write(wl, addr, p, fw_data_len % CHUNK_SIZE);
+
+	return 0;
+}
+
+static int wl1251_upload_nvs(struct wl12xx *wl)
+{
+	size_t nvs_len, nvs_bytes_written, burst_len;
+	int nvs_start, i;
+	u32 dest_addr, val;
+	u8 *nvs_ptr, *nvs;
+
+	nvs = wl->nvs;
+	if (nvs == NULL)
+		return -ENODEV;
+
+	nvs_ptr = nvs;
+
+	nvs_len = wl->nvs_len;
+	nvs_start = wl->fw_len;
+
+	/*
+	 * Layout before the actual NVS tables:
+	 * 1 byte : burst length.
+	 * 2 bytes: destination address.
+	 * n bytes: data to burst copy.
+	 *
+	 * This is ended by a 0 length, then the NVS tables.
+	 */
+
+	while (nvs_ptr[0]) {
+		burst_len = nvs_ptr[0];
+		dest_addr = (nvs_ptr[1] & 0xfe) | ((u32)(nvs_ptr[2] << 8));
+
+		/* We move our pointer to the data */
+		nvs_ptr += 3;
+
+		for (i = 0; i < burst_len; i++) {
+			val = (nvs_ptr[0] | (nvs_ptr[1] << 8)
+			       | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24));
+
+			wl12xx_debug(DEBUG_BOOT,
+				     "nvs burst write 0x%x: 0x%x",
+				     dest_addr, val);
+			wl12xx_mem_write32(wl, dest_addr, val);
+
+			nvs_ptr += 4;
+			dest_addr += 4;
+		}
+	}
+
+	/*
+	 * We've reached the first zero length, the first NVS table
+	 * is 7 bytes further.
+	 */
+	nvs_ptr += 7;
+	nvs_len -= nvs_ptr - nvs;
+	nvs_len = ALIGN(nvs_len, 4);
+
+	/* Now we must set the partition correctly */
+	wl12xx_set_partition(wl, nvs_start,
+			     wl->chip.p_table[PART_DOWN].mem.size,
+			     wl->chip.p_table[PART_DOWN].reg.start,
+			     wl->chip.p_table[PART_DOWN].reg.size);
+
+	/* And finally we upload the NVS tables */
+	nvs_bytes_written = 0;
+	while (nvs_bytes_written < nvs_len) {
+		val = (nvs_ptr[0] | (nvs_ptr[1] << 8)
+		       | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24));
+
+		val = cpu_to_le32(val);
+
+		wl12xx_debug(DEBUG_BOOT,
+			     "nvs write table 0x%x: 0x%x",
+			     nvs_start, val);
+		wl12xx_mem_write32(wl, nvs_start, val);
+
+		nvs_ptr += 4;
+		nvs_bytes_written += 4;
+		nvs_start += 4;
+	}
+
+	return 0;
+}
+
+static int wl1251_boot(struct wl12xx *wl)
+{
+	int ret = 0, minor_minor_e2_ver;
+	u32 tmp, boot_data;
+
+	ret = wl12xx_boot_soft_reset(wl);
+	if (ret < 0)
+		goto out;
+
+	/* 2. start processing NVS file */
+	ret = wl->chip.op_upload_nvs(wl);
+	if (ret < 0)
+		goto out;
+
+	/* write firmware's last address (ie. it's length) to
+	 * ACX_EEPROMLESS_IND_REG */
+	wl12xx_reg_write32(wl, ACX_EEPROMLESS_IND_REG, wl->fw_len);
+
+	/* 6. read the EEPROM parameters */
+	tmp = wl12xx_reg_read32(wl, SCR_PAD2);
+
+	/* 7. read bootdata */
+	wl->boot_attr.radio_type = (tmp & 0x0000FF00) >> 8;
+	wl->boot_attr.major = (tmp & 0x00FF0000) >> 16;
+	tmp = wl12xx_reg_read32(wl, SCR_PAD3);
+
+	/* 8. check bootdata and call restart sequence */
+	wl->boot_attr.minor = (tmp & 0x00FF0000) >> 16;
+	minor_minor_e2_ver = (tmp & 0xFF000000) >> 24;
+
+	wl12xx_debug(DEBUG_BOOT, "radioType 0x%x majorE2Ver 0x%x "
+		     "minorE2Ver 0x%x minor_minor_e2_ver 0x%x",
+		     wl->boot_attr.radio_type, wl->boot_attr.major,
+		     wl->boot_attr.minor, minor_minor_e2_ver);
+
+	ret = wl12xx_boot_init_seq(wl);
+	if (ret < 0)
+		goto out;
+
+	/* 9. NVS processing done */
+	boot_data = wl12xx_reg_read32(wl, ACX_REG_ECPU_CONTROL);
+
+	wl12xx_debug(DEBUG_BOOT, "halt boot_data 0x%x", boot_data);
+
+	/* 10. check that ECPU_CONTROL_HALT bits are set in
+	 * pWhalBus->uBootData and start uploading firmware
+	 */
+	if ((boot_data & ECPU_CONTROL_HALT) == 0) {
+		wl12xx_error("boot failed, ECPU_CONTROL_HALT not set");
+		ret = -EIO;
+		goto out;
+	}
+
+	ret = wl->chip.op_upload_fw(wl);
+	if (ret < 0)
+		goto out;
+
+	/* 10.5 start firmware */
+	ret = wl12xx_boot_run_firmware(wl);
+	if (ret < 0)
+		goto out;
+
+	/* Get and save the firmware version */
+	wl12xx_acx_fw_version(wl, wl->chip.fw_ver, sizeof(wl->chip.fw_ver));
+
+out:
+	return ret;
+}
+
+static int wl1251_mem_cfg(struct wl12xx *wl)
+{
+	struct wl1251_acx_config_memory mem_conf;
+	int ret, i;
+
+	wl12xx_debug(DEBUG_ACX, "wl1251 mem cfg");
+
+	/* memory config */
+	mem_conf.mem_config.num_stations = cpu_to_le16(DEFAULT_NUM_STATIONS);
+	mem_conf.mem_config.rx_mem_block_num = 35;
+	mem_conf.mem_config.tx_min_mem_block_num = 64;
+	mem_conf.mem_config.num_tx_queues = MAX_TX_QUEUES;
+	mem_conf.mem_config.host_if_options = HOSTIF_PKT_RING;
+	mem_conf.mem_config.num_ssid_profiles = 1;
+	mem_conf.mem_config.debug_buffer_size =
+		cpu_to_le16(TRACE_BUFFER_MAX_SIZE);
+
+	/* RX queue config */
+	mem_conf.rx_queue_config.dma_address = 0;
+	mem_conf.rx_queue_config.num_descs = ACX_RX_DESC_DEF;
+	mem_conf.rx_queue_config.priority = DEFAULT_RXQ_PRIORITY;
+	mem_conf.rx_queue_config.type = DEFAULT_RXQ_TYPE;
+
+	/* TX queue config */
+	for (i = 0; i < MAX_TX_QUEUES; i++) {
+		mem_conf.tx_queue_config[i].num_descs = ACX_TX_DESC_DEF;
+		mem_conf.tx_queue_config[i].attributes = i;
+	}
+
+	mem_conf.header.id = ACX_MEM_CFG;
+	mem_conf.header.len = sizeof(struct wl1251_acx_config_memory) -
+		sizeof(struct acx_header);
+	mem_conf.header.len -=
+		(MAX_TX_QUEUE_CONFIGS - mem_conf.mem_config.num_tx_queues) *
+		sizeof(struct wl1251_acx_tx_queue_config);
+
+	ret = wl12xx_cmd_configure(wl, &mem_conf,
+				   sizeof(struct wl1251_acx_config_memory));
+	if (ret < 0)
+		wl12xx_warning("wl1251 mem config failed: %d", ret);
+
+	return ret;
+}
+
+static int wl1251_hw_init_mem_config(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl1251_mem_cfg(wl);
+	if (ret < 0)
+		return ret;
+
+	wl->target_mem_map = kzalloc(sizeof(struct wl1251_acx_mem_map),
+					  GFP_KERNEL);
+	if (!wl->target_mem_map) {
+		wl12xx_error("couldn't allocate target memory map");
+		return -ENOMEM;
+	}
+
+	/* we now ask for the firmware built memory map */
+	ret = wl12xx_acx_mem_map(wl, wl->target_mem_map,
+				 sizeof(struct wl1251_acx_mem_map));
+	if (ret < 0) {
+		wl12xx_error("couldn't retrieve firmware memory map");
+		kfree(wl->target_mem_map);
+		wl->target_mem_map = NULL;
+		return ret;
+	}
+
+	return 0;
+}
+
+static void wl1251_set_ecpu_ctrl(struct wl12xx *wl, u32 flag)
+{
+	u32 cpu_ctrl;
+
+	/* 10.5.0 run the firmware (I) */
+	cpu_ctrl = wl12xx_reg_read32(wl, ACX_REG_ECPU_CONTROL);
+
+	/* 10.5.1 run the firmware (II) */
+	cpu_ctrl &= ~flag;
+	wl12xx_reg_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl);
+}
+
+static void wl1251_target_enable_interrupts(struct wl12xx *wl)
+{
+	/* Enable target's interrupts */
+	wl->intr_mask = WL1251_ACX_INTR_RX0_DATA |
+		WL1251_ACX_INTR_RX1_DATA |
+		WL1251_ACX_INTR_TX_RESULT |
+		WL1251_ACX_INTR_EVENT_A |
+		WL1251_ACX_INTR_EVENT_B |
+		WL1251_ACX_INTR_INIT_COMPLETE;
+	wl12xx_boot_target_enable_interrupts(wl);
+}
+
+static void wl1251_irq_work(struct work_struct *work)
+{
+	u32 intr;
+	struct wl12xx *wl =
+		container_of(work, struct wl12xx, irq_work);
+
+	mutex_lock(&wl->mutex);
+
+	wl12xx_debug(DEBUG_IRQ, "IRQ work");
+
+	if (wl->state == WL12XX_STATE_OFF)
+		goto out;
+
+	wl12xx_ps_elp_wakeup(wl);
+
+	wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL);
+
+	intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR);
+	wl12xx_debug(DEBUG_IRQ, "intr: 0x%x", intr);
+
+	if (wl->data_path) {
+		wl12xx_spi_mem_read(wl, wl->data_path->rx_control_addr,
+				    &wl->rx_counter, sizeof(u32));
+
+		/* We handle a frmware bug here */
+		switch ((wl->rx_counter - wl->rx_handled) & 0xf) {
+		case 0:
+			wl12xx_debug(DEBUG_IRQ, "RX: FW and host in sync");
+			intr &= ~WL1251_ACX_INTR_RX0_DATA;
+			intr &= ~WL1251_ACX_INTR_RX1_DATA;
+			break;
+		case 1:
+			wl12xx_debug(DEBUG_IRQ, "RX: FW +1");
+			intr |= WL1251_ACX_INTR_RX0_DATA;
+			intr &= ~WL1251_ACX_INTR_RX1_DATA;
+			break;
+		case 2:
+			wl12xx_debug(DEBUG_IRQ, "RX: FW +2");
+			intr |= WL1251_ACX_INTR_RX0_DATA;
+			intr |= WL1251_ACX_INTR_RX1_DATA;
+			break;
+		default:
+			wl12xx_warning("RX: FW and host out of sync: %d",
+				       wl->rx_counter - wl->rx_handled);
+			break;
+		}
+
+		wl->rx_handled = wl->rx_counter;
+
+
+		wl12xx_debug(DEBUG_IRQ, "RX counter: %d", wl->rx_counter);
+	}
+
+	intr &= wl->intr_mask;
+
+	if (intr == 0) {
+		wl12xx_debug(DEBUG_IRQ, "INTR is 0");
+		wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK,
+				   ~(wl->intr_mask));
+
+		goto out_sleep;
+	}
+
+	if (intr & WL1251_ACX_INTR_RX0_DATA) {
+		wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA");
+		wl12xx_rx(wl);
+	}
+
+	if (intr & WL1251_ACX_INTR_RX1_DATA) {
+		wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA");
+		wl12xx_rx(wl);
+	}
+
+	if (intr & WL1251_ACX_INTR_TX_RESULT) {
+		wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT");
+		wl12xx_tx_complete(wl);
+	}
+
+	if (intr & (WL1251_ACX_INTR_EVENT_A | WL1251_ACX_INTR_EVENT_B)) {
+		wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT (0x%x)", intr);
+		if (intr & WL1251_ACX_INTR_EVENT_A)
+			wl12xx_event_handle(wl, 0);
+		else
+			wl12xx_event_handle(wl, 1);
+	}
+
+	if (intr & WL1251_ACX_INTR_INIT_COMPLETE)
+		wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_INIT_COMPLETE");
+
+	wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask));
+
+out_sleep:
+	wl12xx_ps_elp_sleep(wl);
+out:
+	mutex_unlock(&wl->mutex);
+}
+
+static int wl1251_hw_init_txq_fill(u8 qid,
+				   struct acx_tx_queue_qos_config *config,
+				   u32 num_blocks)
+{
+	config->qid = qid;
+
+	switch (qid) {
+	case QOS_AC_BE:
+		config->high_threshold =
+			(QOS_TX_HIGH_BE_DEF * num_blocks) / 100;
+		config->low_threshold =
+			(QOS_TX_LOW_BE_DEF * num_blocks) / 100;
+		break;
+	case QOS_AC_BK:
+		config->high_threshold =
+			(QOS_TX_HIGH_BK_DEF * num_blocks) / 100;
+		config->low_threshold =
+			(QOS_TX_LOW_BK_DEF * num_blocks) / 100;
+		break;
+	case QOS_AC_VI:
+		config->high_threshold =
+			(QOS_TX_HIGH_VI_DEF * num_blocks) / 100;
+		config->low_threshold =
+			(QOS_TX_LOW_VI_DEF * num_blocks) / 100;
+		break;
+	case QOS_AC_VO:
+		config->high_threshold =
+			(QOS_TX_HIGH_VO_DEF * num_blocks) / 100;
+		config->low_threshold =
+			(QOS_TX_LOW_VO_DEF * num_blocks) / 100;
+		break;
+	default:
+		wl12xx_error("Invalid TX queue id: %d", qid);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int wl1251_hw_init_tx_queue_config(struct wl12xx *wl)
+{
+	struct acx_tx_queue_qos_config config;
+	struct wl1251_acx_mem_map *wl_mem_map = wl->target_mem_map;
+	int ret, i;
+
+	wl12xx_debug(DEBUG_ACX, "acx tx queue config");
+
+	config.header.id = ACX_TX_QUEUE_CFG;
+	config.header.len = sizeof(struct acx_tx_queue_qos_config) -
+		sizeof(struct acx_header);
+
+	for (i = 0; i < MAX_NUM_OF_AC; i++) {
+		ret = wl1251_hw_init_txq_fill(i, &config,
+					      wl_mem_map->num_tx_mem_blocks);
+		if (ret < 0)
+			return ret;
+
+		ret = wl12xx_cmd_configure(wl, &config, sizeof(config));
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int wl1251_hw_init_data_path_config(struct wl12xx *wl)
+{
+	int ret;
+
+	/* asking for the data path parameters */
+	wl->data_path = kzalloc(sizeof(struct acx_data_path_params_resp),
+				GFP_KERNEL);
+	if (!wl->data_path) {
+		wl12xx_error("Couldnt allocate data path parameters");
+		return -ENOMEM;
+	}
+
+	ret = wl12xx_acx_data_path_params(wl, wl->data_path);
+	if (ret < 0) {
+		kfree(wl->data_path);
+		wl->data_path = NULL;
+		return ret;
+	}
+
+	return 0;
+}
+
+static int wl1251_hw_init(struct wl12xx *wl)
+{
+	struct wl1251_acx_mem_map *wl_mem_map;
+	int ret;
+
+	ret = wl12xx_hw_init_hwenc_config(wl);
+	if (ret < 0)
+		return ret;
+
+	/* Template settings */
+	ret = wl12xx_hw_init_templates_config(wl);
+	if (ret < 0)
+		return ret;
+
+	/* Default memory configuration */
+	ret = wl1251_hw_init_mem_config(wl);
+	if (ret < 0)
+		return ret;
+
+	/* Default data path configuration  */
+	ret = wl1251_hw_init_data_path_config(wl);
+	if (ret < 0)
+		goto out_free_memmap;
+
+	/* RX config */
+	ret = wl12xx_hw_init_rx_config(wl,
+				       RX_CFG_PROMISCUOUS | RX_CFG_TSF,
+				       RX_FILTER_OPTION_DEF);
+	/* RX_CONFIG_OPTION_ANY_DST_ANY_BSS,
+	   RX_FILTER_OPTION_FILTER_ALL); */
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* TX queues config */
+	ret = wl1251_hw_init_tx_queue_config(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* PHY layer config */
+	ret = wl12xx_hw_init_phy_config(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Beacon filtering */
+	ret = wl12xx_hw_init_beacon_filter(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Bluetooth WLAN coexistence */
+	ret = wl12xx_hw_init_pta(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Energy detection */
+	ret = wl12xx_hw_init_energy_detection(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Beacons and boradcast settings */
+	ret = wl12xx_hw_init_beacon_broadcast(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Enable data path */
+	ret = wl12xx_cmd_data_path(wl, wl->channel, 1);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Default power state */
+	ret = wl12xx_hw_init_power_auth(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	wl_mem_map = wl->target_mem_map;
+	wl12xx_info("%d tx blocks at 0x%x, %d rx blocks at 0x%x",
+		    wl_mem_map->num_tx_mem_blocks,
+		    wl->data_path->tx_control_addr,
+		    wl_mem_map->num_rx_mem_blocks,
+		    wl->data_path->rx_control_addr);
+
+	return 0;
+
+ out_free_data_path:
+	kfree(wl->data_path);
+
+ out_free_memmap:
+	kfree(wl->target_mem_map);
+
+	return ret;
+}
+
+static int wl1251_plt_init(struct wl12xx *wl)
+{
+	int ret;
+
+	ret = wl1251_hw_init_mem_config(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl12xx_cmd_data_path(wl, wl->channel, 1);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+void wl1251_setup(struct wl12xx *wl)
+{
+	/* FIXME: Is it better to use strncpy here or is this ok? */
+	wl->chip.fw_filename = WL1251_FW_NAME;
+	wl->chip.nvs_filename = WL1251_NVS_NAME;
+
+	/* Now we know what chip we're using, so adjust the power on sleep
+	 * time accordingly */
+	wl->chip.power_on_sleep = WL1251_POWER_ON_SLEEP;
+
+	wl->chip.intr_cmd_complete = WL1251_ACX_INTR_CMD_COMPLETE;
+	wl->chip.intr_init_complete = WL1251_ACX_INTR_INIT_COMPLETE;
+
+	wl->chip.op_upload_nvs = wl1251_upload_nvs;
+	wl->chip.op_upload_fw = wl1251_upload_firmware;
+	wl->chip.op_boot = wl1251_boot;
+	wl->chip.op_set_ecpu_ctrl = wl1251_set_ecpu_ctrl;
+	wl->chip.op_target_enable_interrupts = wl1251_target_enable_interrupts;
+	wl->chip.op_hw_init = wl1251_hw_init;
+	wl->chip.op_plt_init = wl1251_plt_init;
+
+	wl->chip.p_table = wl1251_part_table;
+	wl->chip.acx_reg_table = wl1251_acx_reg_table;
+
+	INIT_WORK(&wl->irq_work, wl1251_irq_work);
+}

drivers/net/wireless/wl12xx/wl1251.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL1251_H__
+#define __WL1251_H__
+
+#include <linux/bitops.h>
+
+#include "wl12xx.h"
+#include "acx.h"
+
+#define WL1251_FW_NAME "wl1251-fw.bin"
+#define WL1251_NVS_NAME "wl1251-nvs.bin"
+
+#define WL1251_POWER_ON_SLEEP 10 /* in miliseconds */
+
+void wl1251_setup(struct wl12xx *wl);
+
+
+struct wl1251_acx_memory {
+	__le16 num_stations; /* number of STAs to be supported. */
+	u16 reserved_1;
+
+	/*
+	 * Nmber of memory buffers for the RX mem pool.
+	 * The actual number may be less if there are
+	 * not enough blocks left for the minimum num
+	 * of TX ones.
+	 */
+	u8 rx_mem_block_num;
+	u8 reserved_2;
+	u8 num_tx_queues; /* From 1 to 16 */
+	u8 host_if_options; /* HOST_IF* */
+	u8 tx_min_mem_block_num;
+	u8 num_ssid_profiles;
+	__le16 debug_buffer_size;
+} __attribute__ ((packed));
+
+
+#define ACX_RX_DESC_MIN                1
+#define ACX_RX_DESC_MAX                127
+#define ACX_RX_DESC_DEF                32
+struct wl1251_acx_rx_queue_config {
+	u8 num_descs;
+	u8 pad;
+	u8 type;
+	u8 priority;
+	__le32 dma_address;
+} __attribute__ ((packed));
+
+#define ACX_TX_DESC_MIN                1
+#define ACX_TX_DESC_MAX                127
+#define ACX_TX_DESC_DEF                16
+struct wl1251_acx_tx_queue_config {
+    u8 num_descs;
+    u8 pad[2];
+    u8 attributes;
+} __attribute__ ((packed));
+
+#define MAX_TX_QUEUE_CONFIGS 5
+#define MAX_TX_QUEUES 4
+struct wl1251_acx_config_memory {
+	struct acx_header header;
+
+	struct wl1251_acx_memory mem_config;
+	struct wl1251_acx_rx_queue_config rx_queue_config;
+	struct wl1251_acx_tx_queue_config tx_queue_config[MAX_TX_QUEUE_CONFIGS];
+} __attribute__ ((packed));
+
+struct wl1251_acx_mem_map {
+	struct acx_header header;
+
+	void *code_start;
+	void *code_end;
+
+	void *wep_defkey_start;
+	void *wep_defkey_end;
+
+	void *sta_table_start;
+	void *sta_table_end;
+
+	void *packet_template_start;
+	void *packet_template_end;
+
+	void *queue_memory_start;
+	void *queue_memory_end;
+
+	void *packet_memory_pool_start;
+	void *packet_memory_pool_end;
+
+	void *debug_buffer1_start;
+	void *debug_buffer1_end;
+
+	void *debug_buffer2_start;
+	void *debug_buffer2_end;
+
+	/* Number of blocks FW allocated for TX packets */
+	u32 num_tx_mem_blocks;
+
+	/* Number of blocks FW allocated for RX packets */
+	u32 num_rx_mem_blocks;
+} __attribute__ ((packed));
+
+/*************************************************************************
+
+    Host Interrupt Register (WiLink -> Host)
+
+**************************************************************************/
+
+/* RX packet is ready in Xfer buffer #0 */
+#define WL1251_ACX_INTR_RX0_DATA      BIT(0)
+
+/* TX result(s) are in the TX complete buffer */
+#define WL1251_ACX_INTR_TX_RESULT	BIT(1)
+
+/* OBSOLETE */
+#define WL1251_ACX_INTR_TX_XFR		BIT(2)
+
+/* RX packet is ready in Xfer buffer #1 */
+#define WL1251_ACX_INTR_RX1_DATA	BIT(3)
+
+/* Event was entered to Event MBOX #A */
+#define WL1251_ACX_INTR_EVENT_A		BIT(4)
+
+/* Event was entered to Event MBOX #B */
+#define WL1251_ACX_INTR_EVENT_B		BIT(5)
+
+/* OBSOLETE */
+#define WL1251_ACX_INTR_WAKE_ON_HOST	BIT(6)
+
+/* Trace meassge on MBOX #A */
+#define WL1251_ACX_INTR_TRACE_A		BIT(7)
+
+/* Trace meassge on MBOX #B */
+#define WL1251_ACX_INTR_TRACE_B		BIT(8)
+
+/* Command processing completion */
+#define WL1251_ACX_INTR_CMD_COMPLETE	BIT(9)
+
+/* Init sequence is done */
+#define WL1251_ACX_INTR_INIT_COMPLETE	BIT(14)
+
+#define WL1251_ACX_INTR_ALL           0xFFFFFFFF
+
+#endif

drivers/net/wireless/wl12xx/wl12xx.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_H__
+#define __WL12XX_H__
+
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/bitops.h>
+#include <net/mac80211.h>
+
+#define DRIVER_NAME "wl12xx"
+#define DRIVER_PREFIX DRIVER_NAME ": "
+
+enum {
+	DEBUG_NONE	= 0,
+	DEBUG_IRQ	= BIT(0),
+	DEBUG_SPI	= BIT(1),
+	DEBUG_BOOT	= BIT(2),
+	DEBUG_MAILBOX	= BIT(3),
+	DEBUG_NETLINK	= BIT(4),
+	DEBUG_EVENT	= BIT(5),
+	DEBUG_TX	= BIT(6),
+	DEBUG_RX	= BIT(7),
+	DEBUG_SCAN	= BIT(8),
+	DEBUG_CRYPT	= BIT(9),
+	DEBUG_PSM	= BIT(10),
+	DEBUG_MAC80211	= BIT(11),
+	DEBUG_CMD	= BIT(12),
+	DEBUG_ACX	= BIT(13),
+	DEBUG_ALL	= ~0,
+};
+
+#define DEBUG_LEVEL (DEBUG_NONE)
+
+#define DEBUG_DUMP_LIMIT 1024
+
+#define wl12xx_error(fmt, arg...) \
+	printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
+
+#define wl12xx_warning(fmt, arg...) \
+	printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
+
+#define wl12xx_notice(fmt, arg...) \
+	printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg)
+
+#define wl12xx_info(fmt, arg...) \
+	printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg)
+
+#define wl12xx_debug(level, fmt, arg...) \
+	do { \
+		if (level & DEBUG_LEVEL) \
+			printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \
+	} while (0)
+
+#define wl12xx_dump(level, prefix, buf, len)	\
+	do { \
+		if (level & DEBUG_LEVEL) \
+			print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
+				       DUMP_PREFIX_OFFSET, 16, 1,	\
+				       buf,				\
+				       min_t(size_t, len, DEBUG_DUMP_LIMIT), \
+				       0);				\
+	} while (0)
+
+#define wl12xx_dump_ascii(level, prefix, buf, len)	\
+	do { \
+		if (level & DEBUG_LEVEL) \
+			print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
+				       DUMP_PREFIX_OFFSET, 16, 1,	\
+				       buf,				\
+				       min_t(size_t, len, DEBUG_DUMP_LIMIT), \
+				       true);				\
+	} while (0)
+
+#define WL12XX_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN |	\
+				  CFG_BSSID_FILTER_EN)
+
+#define WL12XX_DEFAULT_RX_FILTER (CFG_RX_PRSP_EN |  \
+				  CFG_RX_MGMT_EN |  \
+				  CFG_RX_DATA_EN |  \
+				  CFG_RX_CTL_EN |   \
+				  CFG_RX_BCN_EN |   \
+				  CFG_RX_AUTH_EN |  \
+				  CFG_RX_ASSOC_EN)
+
+
+struct boot_attr {
+	u32 radio_type;
+	u8 mac_clock;
+	u8 arm_clock;
+	int firmware_debug;
+	u32 minor;
+	u32 major;
+	u32 bugfix;
+};
+
+enum wl12xx_state {
+	WL12XX_STATE_OFF,
+	WL12XX_STATE_ON,
+	WL12XX_STATE_PLT,
+};
+
+enum wl12xx_partition_type {
+	PART_DOWN,
+	PART_WORK,
+	PART_DRPW,
+
+	PART_TABLE_LEN
+};
+
+struct wl12xx_partition {
+	u32 size;
+	u32 start;
+};
+
+struct wl12xx_partition_set {
+	struct wl12xx_partition mem;
+	struct wl12xx_partition reg;
+};
+
+struct wl12xx;
+
+/* FIXME: I'm not sure about this structure name */
+struct wl12xx_chip {
+	u32 id;
+
+	const char *fw_filename;
+	const char *nvs_filename;
+
+	char fw_ver[21];
+
+	unsigned int power_on_sleep;
+	int intr_cmd_complete;
+	int intr_init_complete;
+
+	int (*op_upload_fw)(struct wl12xx *wl);
+	int (*op_upload_nvs)(struct wl12xx *wl);
+	int (*op_boot)(struct wl12xx *wl);
+	void (*op_set_ecpu_ctrl)(struct wl12xx *wl, u32 flag);
+	void (*op_target_enable_interrupts)(struct wl12xx *wl);
+	int (*op_hw_init)(struct wl12xx *wl);
+	int (*op_plt_init)(struct wl12xx *wl);
+
+	struct wl12xx_partition_set *p_table;
+	enum wl12xx_acx_int_reg *acx_reg_table;
+};
+
+struct wl12xx_stats {
+	struct acx_statistics *fw_stats;
+	unsigned long fw_stats_update;
+
+	unsigned int retry_count;
+	unsigned int excessive_retries;
+};
+
+struct wl12xx_debugfs {
+	struct dentry *rootdir;
+	struct dentry *fw_statistics;
+
+	struct dentry *tx_internal_desc_overflow;
+
+	struct dentry *rx_out_of_mem;
+	struct dentry *rx_hdr_overflow;
+	struct dentry *rx_hw_stuck;
+	struct dentry *rx_dropped;
+	struct dentry *rx_fcs_err;
+	struct dentry *rx_xfr_hint_trig;
+	struct dentry *rx_path_reset;
+	struct dentry *rx_reset_counter;
+
+	struct dentry *dma_rx_requested;
+	struct dentry *dma_rx_errors;
+	struct dentry *dma_tx_requested;
+	struct dentry *dma_tx_errors;
+
+	struct dentry *isr_cmd_cmplt;
+	struct dentry *isr_fiqs;
+	struct dentry *isr_rx_headers;
+	struct dentry *isr_rx_mem_overflow;
+	struct dentry *isr_rx_rdys;
+	struct dentry *isr_irqs;
+	struct dentry *isr_tx_procs;
+	struct dentry *isr_decrypt_done;
+	struct dentry *isr_dma0_done;
+	struct dentry *isr_dma1_done;
+	struct dentry *isr_tx_exch_complete;
+	struct dentry *isr_commands;
+	struct dentry *isr_rx_procs;
+	struct dentry *isr_hw_pm_mode_changes;
+	struct dentry *isr_host_acknowledges;
+	struct dentry *isr_pci_pm;
+	struct dentry *isr_wakeups;
+	struct dentry *isr_low_rssi;
+
+	struct dentry *wep_addr_key_count;
+	struct dentry *wep_default_key_count;
+	/* skipping wep.reserved */
+	struct dentry *wep_key_not_found;
+	struct dentry *wep_decrypt_fail;
+	struct dentry *wep_packets;
+	struct dentry *wep_interrupt;
+
+	struct dentry *pwr_ps_enter;
+	struct dentry *pwr_elp_enter;
+	struct dentry *pwr_missing_bcns;
+	struct dentry *pwr_wake_on_host;
+	struct dentry *pwr_wake_on_timer_exp;
+	struct dentry *pwr_tx_with_ps;
+	struct dentry *pwr_tx_without_ps;
+	struct dentry *pwr_rcvd_beacons;
+	struct dentry *pwr_power_save_off;
+	struct dentry *pwr_enable_ps;
+	struct dentry *pwr_disable_ps;
+	struct dentry *pwr_fix_tsf_ps;
+	/* skipping cont_miss_bcns_spread for now */
+	struct dentry *pwr_rcvd_awake_beacons;
+
+	struct dentry *mic_rx_pkts;
+	struct dentry *mic_calc_failure;
+
+	struct dentry *aes_encrypt_fail;
+	struct dentry *aes_decrypt_fail;
+	struct dentry *aes_encrypt_packets;
+	struct dentry *aes_decrypt_packets;
+	struct dentry *aes_encrypt_interrupt;
+	struct dentry *aes_decrypt_interrupt;
+
+	struct dentry *event_heart_beat;
+	struct dentry *event_calibration;
+	struct dentry *event_rx_mismatch;
+	struct dentry *event_rx_mem_empty;
+	struct dentry *event_rx_pool;
+	struct dentry *event_oom_late;
+	struct dentry *event_phy_transmit_error;
+	struct dentry *event_tx_stuck;
+
+	struct dentry *ps_pspoll_timeouts;
+	struct dentry *ps_upsd_timeouts;
+	struct dentry *ps_upsd_max_sptime;
+	struct dentry *ps_upsd_max_apturn;
+	struct dentry *ps_pspoll_max_apturn;
+	struct dentry *ps_pspoll_utilization;
+	struct dentry *ps_upsd_utilization;
+
+	struct dentry *rxpipe_rx_prep_beacon_drop;
+	struct dentry *rxpipe_descr_host_int_trig_rx_data;
+	struct dentry *rxpipe_beacon_buffer_thres_host_int_trig_rx_data;
+	struct dentry *rxpipe_missed_beacon_host_int_trig_rx_data;
+	struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data;
+
+	struct dentry *tx_queue_len;
+
+	struct dentry *retry_count;
+	struct dentry *excessive_retries;
+};
+
+struct wl12xx {
+	struct ieee80211_hw *hw;
+	bool mac80211_registered;
+
+	struct spi_device *spi;
+
+	void (*set_power)(bool enable);
+	int irq;
+
+	enum wl12xx_state state;
+	struct mutex mutex;
+
+	int physical_mem_addr;
+	int physical_reg_addr;
+	int virtual_mem_addr;
+	int virtual_reg_addr;
+
+	struct wl12xx_chip chip;
+
+	int cmd_box_addr;
+	int event_box_addr;
+	struct boot_attr boot_attr;
+
+	u8 *fw;
+	size_t fw_len;
+	u8 *nvs;
+	size_t nvs_len;
+
+	u8 bssid[ETH_ALEN];
+	u8 mac_addr[ETH_ALEN];
+	u8 bss_type;
+	u8 listen_int;
+	int channel;
+
+	void *target_mem_map;
+	struct acx_data_path_params_resp *data_path;
+
+	/* Number of TX packets transferred to the FW, modulo 16 */
+	u32 data_in_count;
+
+	/* Frames scheduled for transmission, not handled yet */
+	struct sk_buff_head tx_queue;
+	bool tx_queue_stopped;
+
+	struct work_struct tx_work;
+	struct work_struct filter_work;
+
+	/* Pending TX frames */
+	struct sk_buff *tx_frames[16];
+
+	/*
+	 * Index pointing to the next TX complete entry
+	 * in the cyclic XT complete array we get from
+	 * the FW.
+	 */
+	u32 next_tx_complete;
+
+	/* FW Rx counter */
+	u32 rx_counter;
+
+	/* Rx frames handled */
+	u32 rx_handled;
+
+	/* Current double buffer */
+	u32 rx_current_buffer;
+	u32 rx_last_id;
+
+	/* The target interrupt mask */
+	u32 intr_mask;
+	struct work_struct irq_work;
+
+	/* The mbox event mask */
+	u32 event_mask;
+
+	/* Mailbox pointers */
+	u32 mbox_ptr[2];
+
+	/* Are we currently scanning */
+	bool scanning;
+
+	/* Our association ID */
+	u16 aid;
+
+	/* Default key (for WEP) */
+	u32 default_key;
+
+	unsigned int tx_mgmt_frm_rate;
+	unsigned int tx_mgmt_frm_mod;
+
+	unsigned int rx_config;
+	unsigned int rx_filter;
+
+	/* is firmware in elp mode */
+	bool elp;
+
+	/* we can be in psm, but not in elp, we have to differentiate */
+	bool psm;
+
+	/* PSM mode requested */
+	bool psm_requested;
+
+	/* in dBm */
+	int power_level;
+
+	struct wl12xx_stats stats;
+	struct wl12xx_debugfs debugfs;
+};
+
+int wl12xx_plt_start(struct wl12xx *wl);
+int wl12xx_plt_stop(struct wl12xx *wl);
+
+#define DEFAULT_HW_GEN_MODULATION_TYPE    CCK_LONG /* Long Preamble */
+#define DEFAULT_HW_GEN_TX_RATE          RATE_2MBPS
+#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
+
+#define WL12XX_DEFAULT_POWER_LEVEL 20
+
+#define WL12XX_TX_QUEUE_MAX_LENGTH 20
+
+/* Different chips need different sleep times after power on.  WL1271 needs
+ * 200ms, WL1251 needs only 10ms.  By default we use 200ms, but as soon as we
+ * know the chip ID, we change the sleep value in the wl12xx chip structure,
+ * so in subsequent power ons, we don't waste more time then needed.  */
+#define WL12XX_DEFAULT_POWER_ON_SLEEP 200
+
+#define CHIP_ID_1251_PG10	           (0x7010101)
+#define CHIP_ID_1251_PG11	           (0x7020101)
+#define CHIP_ID_1251_PG12	           (0x7030101)
+#define CHIP_ID_1271_PG10	           (0x4030101)
+
+#endif

drivers/net/wireless/wl12xx/wl12xx_80211.h

+#ifndef __WL12XX_80211_H__
+#define __WL12XX_80211_H__
+
+#include <linux/if_ether.h>	/* ETH_ALEN */
+
+/* RATES */
+#define IEEE80211_CCK_RATE_1MB		        0x02
+#define IEEE80211_CCK_RATE_2MB		        0x04
+#define IEEE80211_CCK_RATE_5MB		        0x0B
+#define IEEE80211_CCK_RATE_11MB		        0x16
+#define IEEE80211_OFDM_RATE_6MB		        0x0C
+#define IEEE80211_OFDM_RATE_9MB		        0x12
+#define IEEE80211_OFDM_RATE_12MB		0x18
+#define IEEE80211_OFDM_RATE_18MB		0x24
+#define IEEE80211_OFDM_RATE_24MB		0x30
+#define IEEE80211_OFDM_RATE_36MB		0x48
+#define IEEE80211_OFDM_RATE_48MB		0x60
+#define IEEE80211_OFDM_RATE_54MB		0x6C
+#define IEEE80211_BASIC_RATE_MASK		0x80
+
+#define IEEE80211_CCK_RATE_1MB_MASK		(1<<0)
+#define IEEE80211_CCK_RATE_2MB_MASK		(1<<1)
+#define IEEE80211_CCK_RATE_5MB_MASK		(1<<2)
+#define IEEE80211_CCK_RATE_11MB_MASK		(1<<3)
+#define IEEE80211_OFDM_RATE_6MB_MASK		(1<<4)
+#define IEEE80211_OFDM_RATE_9MB_MASK		(1<<5)
+#define IEEE80211_OFDM_RATE_12MB_MASK		(1<<6)
+#define IEEE80211_OFDM_RATE_18MB_MASK		(1<<7)
+#define IEEE80211_OFDM_RATE_24MB_MASK		(1<<8)
+#define IEEE80211_OFDM_RATE_36MB_MASK		(1<<9)
+#define IEEE80211_OFDM_RATE_48MB_MASK		(1<<10)
+#define IEEE80211_OFDM_RATE_54MB_MASK		(1<<11)
+
+#define IEEE80211_CCK_RATES_MASK	  0x0000000F
+#define IEEE80211_CCK_BASIC_RATES_MASK	 (IEEE80211_CCK_RATE_1MB_MASK | \
+	IEEE80211_CCK_RATE_2MB_MASK)
+#define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
+	IEEE80211_CCK_RATE_5MB_MASK | \
+	IEEE80211_CCK_RATE_11MB_MASK)
+
+#define IEEE80211_OFDM_RATES_MASK	  0x00000FF0
+#define IEEE80211_OFDM_BASIC_RATES_MASK	  (IEEE80211_OFDM_RATE_6MB_MASK | \
+	IEEE80211_OFDM_RATE_12MB_MASK | \
+	IEEE80211_OFDM_RATE_24MB_MASK)
+#define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
+	IEEE80211_OFDM_RATE_9MB_MASK  | \
+	IEEE80211_OFDM_RATE_18MB_MASK | \
+	IEEE80211_OFDM_RATE_36MB_MASK | \
+	IEEE80211_OFDM_RATE_48MB_MASK | \
+	IEEE80211_OFDM_RATE_54MB_MASK)
+#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
+				      IEEE80211_CCK_DEFAULT_RATES_MASK)
+
+
+/* This really should be 8, but not for our firmware */
+#define MAX_SUPPORTED_RATES 32
+#define COUNTRY_STRING_LEN 3
+#define MAX_COUNTRY_TRIPLETS 32
+
+/* Headers */
+struct ieee80211_header {
+	__le16 frame_ctl;
+	__le16 duration_id;
+	u8 da[ETH_ALEN];
+	u8 sa[ETH_ALEN];
+	u8 bssid[ETH_ALEN];
+	__le16 seq_ctl;
+	u8 payload[0];
+} __attribute__ ((packed));
+
+struct wl12xx_ie_header {
+	u8 id;
+	u8 len;
+} __attribute__ ((packed));
+
+/* IEs */
+
+struct wl12xx_ie_ssid {
+	struct wl12xx_ie_header header;
+	char ssid[IW_ESSID_MAX_SIZE];
+} __attribute__ ((packed));
+
+struct wl12xx_ie_rates {
+	struct wl12xx_ie_header header;
+	u8 rates[MAX_SUPPORTED_RATES];
+} __attribute__ ((packed));
+
+struct wl12xx_ie_ds_params {
+	struct wl12xx_ie_header header;
+	u8 channel;
+} __attribute__ ((packed));
+
+struct country_triplet {
+	u8 channel;
+	u8 num_channels;
+	u8 max_tx_power;
+} __attribute__ ((packed));
+
+struct wl12xx_ie_country {
+	struct wl12xx_ie_header header;
+	u8 country_string[COUNTRY_STRING_LEN];
+	struct country_triplet triplets[MAX_COUNTRY_TRIPLETS];
+} __attribute__ ((packed));
+
+
+/* Templates */
+
+struct wl12xx_beacon_template {
+	struct ieee80211_header header;
+	__le32 time_stamp[2];
+	__le16 beacon_interval;
+	__le16 capability;
+	struct wl12xx_ie_ssid ssid;
+	struct wl12xx_ie_rates rates;
+	struct wl12xx_ie_rates ext_rates;
+	struct wl12xx_ie_ds_params ds_params;
+	struct wl12xx_ie_country country;
+} __attribute__ ((packed));
+
+struct wl12xx_null_data_template {
+	struct ieee80211_header header;
+} __attribute__ ((packed));
+
+struct wl12xx_ps_poll_template {
+	u16 fc;
+	u16 aid;
+	u8 bssid[ETH_ALEN];
+	u8 ta[ETH_ALEN];
+} __attribute__ ((packed));
+
+struct wl12xx_qos_null_data_template {
+	struct ieee80211_header header;
+	__le16 qos_ctl;
+} __attribute__ ((packed));
+
+struct wl12xx_probe_req_template {
+	struct ieee80211_header header;
+	struct wl12xx_ie_ssid ssid;
+	struct wl12xx_ie_rates rates;
+	struct wl12xx_ie_rates ext_rates;
+} __attribute__ ((packed));
+
+
+struct wl12xx_probe_resp_template {
+	struct ieee80211_header header;
+	__le32 time_stamp[2];
+	__le16 beacon_interval;
+	__le16 capability;
+	struct wl12xx_ie_ssid ssid;
+	struct wl12xx_ie_rates rates;
+	struct wl12xx_ie_rates ext_rates;
+	struct wl12xx_ie_ds_params ds_params;
+	struct wl12xx_ie_country country;
+} __attribute__ ((packed));
+
+#endif

include/linux/spi/wl12xx.h

+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef _LINUX_SPI_WL12XX_H
+#define _LINUX_SPI_WL12XX_H
+
+struct wl12xx_platform_data {
+	void (*set_power)(bool enable);
+};
+
+#endif