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Commit b8af2d6a authored by Hari Kanigeri's avatar Hari Kanigeri
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remove tesla driver from syslink 

This patch removes tesla driver from syslink tree.
As this dirver is currently dependended on dspbridge,
the right place for this driver for this is in the
tree that has dspbridge.
Signed-off-by: default avatarHari Kanigeri <h-kanigeri@ti.com>
parent 6e7176db
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drivers/Makefile
View file @ b8af2d6a
......@@ -112,7 +112,6 @@ obj-y += platform/
obj-$(CONFIG_MPU_SYSLINK_IPC) += dsp/syslink/multicore_ipc/
obj-$(CONFIG_MPU_BRIDGE_NOTIFY) += dsp/syslink/omap_notify/
obj-$(CONFIG_NOTIFY_DISPATCHER) += dsp/syslink/notify_dispatcher/
obj-$(CONFIG_NOTIFY_TESLA) += dsp/syslink/notify_tesladriver/
obj-$(CONFIG_NOTIFY_DUCATI) += dsp/syslink/notify_ducatidriver/
obj-$(CONFIG_SYSLINK_PROC) += dsp/syslink/procmgr/
obj-$(CONFIG_SYSLINK_PROC4430) += dsp/syslink/procmgr/proc4430/
drivers/dsp/syslink/Kconfig
View file @ b8af2d6a
......@@ -25,13 +25,6 @@ config NOTIFY_DISPATCHER
help
MailBox Dispatcher Module
config NOTIFY_TESLA
tristate "OMAP Notify Tesla Module"
depends on MPU_BRIDGE_NOTIFY
default m
help
Notify Tesla Module
config NOTIFY_DUCATI
tristate "OMAP Notify Ducati Module"
depends on MPU_BRIDGE_NOTIFY
......
drivers/dsp/syslink/notify_tesladriver/Kbuild deleted 100644 → 0
View file @ 6e7176db
omap_tesladriver = notify_tesla.o drv_tesla.o
obj-$(CONFIG_NOTIFY_TESLA) += notify_tesladriver.o
notify_tesladriver-objs = $(omap_tesladriver)
ccflags-y += -Wno-strict-prototypes
#Machine dependent
ccflags-y += -DCONFIG_DISABLE_BRIDGE_PM -DDSP_TRACEBUF_DISABLED \
-DVPOM4430_1_06
#Header files
ccflags-y += -Idrivers/dsp/syslink/inc
ccflags-y += -Iarch/arm/plat-omap/include
drivers/dsp/syslink/notify_tesladriver/drv_tesla.c deleted 100755 → 0
View file @ 6e7176db
/*
* drv_notifytesla.c
*
* Syslink driver support functions for TI OMAP processors.
*
* Copyright (C) 2008-2009 Texas Instruments, Inc.
*
* This package 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 PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* ----------------------------------- OS Specific Headers */
#include <linux/autoconf.h>
#include <linux/spinlock.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/io.h>
#include <asm/pgtable.h>
#include <syslink/notify_tesladriver.h>
#include <syslink/notify_driverdefs.h>
#include <syslink/GlobalTypes.h>
/* Major number of driver */
static signed long int major = 233 ;
/* driver function to open the notify mailbox driver object. */
static int drvtesla_open(struct inode *inode, struct file *filp);
/* notify mailbox driver initialization function. */
static int __init drvtesla_initialize_module(void) ;
/* notify mailbox driver cleanup function. */
static void __exit drvtesla_finalize_module(void) ;
/* Function to invoke the APIs through ioctl. */
static struct file_operations driver_ops = {
.open = drvtesla_open,
};
/* Initialization function */
static int __init drvtesla_initialize_module(void)
{
int result = 0;
result = register_chrdev(major, "notifytesladrv", &driver_ops);
if (result < 0)
pr_err("Notify tesla driver initialization file\n");
return result ;
}
/* Finalization function */
static void __exit drvtesla_finalize_module(void)
{
unregister_chrdev(major, "notifytesladrv");
}
static int drvtesla_open(struct inode *inode, struct file *filp)
{
return 0 ;
}
MODULE_LICENSE("GPL");
module_init(drvtesla_initialize_module);
module_exit(drvtesla_finalize_module);
drivers/dsp/syslink/notify_tesladriver/notify_tesla.c deleted 100644 → 0
View file @ 6e7176db
/*
* notify_mbxDriver.c
*
* DSP-BIOS Bridge driver support functions for TI OMAP processors.
*
* Copyright (C) 2008-2009 Texas Instruments, Inc.
*
* This package 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 PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <linux/spinlock.h>
#include <linux/semaphore.h>
#include <linux/timer.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/io.h>
#include <linux/module.h>
#include <syslink/_bitops.h>
#include <syslink/notify_driver.h>
#include <syslink/notifydefs.h>
#include <syslink/notify_driverdefs.h>
#include <syslink/notify_tesladriver.h>
#include <syslink/gt.h>
#include <syslink/notify_dispatcher.h>
#define NOTIFYSHMDRV_MEM_ALIGN 0
#define NOTIFYSHMDRV_MAX_EVENTS 32
#define NOTIFYSHMDRV_INIT_STAMP 0xA9C8B7D6
#define NOTIFYNONSHMDRV_MAX_EVENTS 1
#define NOTIFYNONSHMDRV_RESERVED_EVENTS 1
#define NOTIFYDRV_TESLA_RECV_MBX 1
#define NOTIFYDRV_TESLA_SEND_MBX 0
#define SELF_ID 0
#define OTHER_ID 1
#define UP 1
#define DOWN 0
#define PROC_TESLA 0
#define PROC_DUCATI 1
#define PROC_GPP 2
irqreturn_t(*irq_handler)(int, void *, struct pt_regs *);
EXPORT_SYMBOL(irq_handler);
/*
* brief NotifyDriverShm instance object.
*/
struct notify_tesladrv_object {
struct notify_tesladrv_params params;
short int proc_id;
struct notify_drv_eventlist *event_list;
struct notify_shmdrv_ctrl *ctrl_ptr;
struct notify_shmdrv_eventreg *reg_chart;
struct notify_driver_object *drv_handle;
short int self_id;
short int other_id;
};
/*
* brief Defines the NotifyDriverShm state object, which contains all the
* module specific information.
*/
struct notify_tesladrv_module {
struct notify_tesladrv_config cfg;
struct notify_tesladrv_config def_cfg;
struct notify_tesladrv_params def_inst_params;
bool is_setup;
struct mutex *gate_handle;
} ;
static struct notify_tesladrv_module notify_tesladriver_state = {
.is_setup = false,
.gate_handle = NULL,
.def_cfg.gate_handle = NULL,
.def_inst_params.shared_addr = 0x0,
.def_inst_params.shared_addr_size = 0x0,
.def_inst_params.num_events = NOTIFYSHMDRV_MAX_EVENTS,
.def_inst_params.num_reserved_events = 3,
.def_inst_params.send_event_poll_count = (int) -1,
.def_inst_params.remote_proc_id = -1,
.def_inst_params.recv_int_id = (int) -1,
.def_inst_params.send_int_id = (int) -1
};
void notify_tesladrv_isr(void *ref_data);
/*
*This function searchs for a element the List.
*/
static void notify_tesladrv_qsearch_elem(struct list_head *list,
struct notify_drv_eventlistner *check_obj,
struct notify_drv_eventlistner **listener);
/*!
* brief Get the default configuration for the NotifyDriverShm module.
*
* This function can be called by the application to get their
* configuration parameter to NotifyDriverShm_setup filled in by
* the NotifyDriverShm module with the default parameters. If the
* user does not wish to make any change in the default parameters,
* this API is not required to be called.
*/
void notify_tesladrv_getconfig(struct notify_tesladrv_config *cfg)
{
BUG_ON(cfg == NULL);
memcpy(cfg,
&(notify_tesladriver_state.def_cfg),
sizeof(struct notify_tesladrv_config));
}
EXPORT_SYMBOL(notify_tesladrv_getconfig);
/*
* brief Function to open a handle to an existing NotifyDriverShm object
* handling the procId.
*
* This function returns a handle to an existing NotifyDriverShm
* instance created for this procId. It enables other entities to
* access and use this NotifyDriverShm instance.
*
*/
int notify_tesladrv_open(char *driver_name,
struct notify_driver_object **handle_ptr)
{
int status = 0;
BUG_ON(driver_name == NULL);
BUG_ON(handle_ptr == NULL);
/* Enter critical section protection. */
WARN_ON(mutex_lock_interruptible(notify_tesladriver_state.gate_handle) != 0);
/* Get the handle from Notify module. */
status = notify_get_driver_handle(driver_name, handle_ptr);
if (status < 0)
status = -EINVAL;
mutex_unlock(notify_tesladriver_state.gate_handle);
return status;
}
/*
* brief Function to close this handle to the NotifyDriverShm instance.
*
* This function closes the handle to the NotifyDriverShm instance
* obtained through NotifyDriverShm_open call made earlier.
*/
int notify_tesladrv_close(struct notify_driver_object **handle_ptr)
{
int status = 0;
BUG_ON(handle_ptr == NULL);
BUG_ON(*handle_ptr == NULL);
*handle_ptr = NULL;
return status;
}
/*
* brief Function to initialize the parameters for this NotifyDriver
* instance.
*
*/
void notify_tesladrv_params_init(struct notify_driver_object *handle,
struct notify_tesladrv_params *params)
{
struct notify_tesladrv_object *driver_obj;
BUG_ON(params == NULL);
if (handle == NULL) {
memcpy(params,
&(notify_tesladriver_state.def_inst_params),
sizeof(struct notify_tesladrv_params));
} else {
/* Return updated NotifyDriverShm instance specific parameters. */
driver_obj = (struct notify_tesladrv_object *)
handle->driver_object;
memcpy(params, &(driver_obj->params),
sizeof(struct notify_tesladrv_params));
}
}
EXPORT_SYMBOL(notify_tesladrv_params_init);
/*
* brief Function to create an instance of this NotifyDriver.
*
*/
struct notify_driver_object *notify_tesladrv_create(char *driver_name,
const struct notify_tesladrv_params *params) {
int status = 0;
struct notify_tesladrv_object *driver_obj = NULL;
struct notify_driver_object *drv_handle = NULL;
struct notify_drv_eventlist *event_list = NULL;
struct notify_shmdrv_proc_ctrl *ctrl_ptr = NULL;
struct notify_driver_attrs drv_attrs;
struct notify_interface fxn_table;
int proc_id;
int i;
unsigned long int num_events = NOTIFYNONSHMDRV_MAX_EVENTS;
struct mbox_config *mbox_hw_config;
int mbox_module_no;
int interrupt_no;
int mbx_ret_val;
BUG_ON(driver_name == NULL);
BUG_ON(params == NULL);
BUG_ON(notify_tesladriver_state.is_setup == false);
if (params->num_events > NOTIFYSHMDRV_MAX_EVENTS) {
status = -EINVAL;
goto func_end;
} else {
if (mutex_lock_interruptible(notify_tesladriver_state.
gate_handle) != 0)
WARN_ON(1);
proc_id = PROC_TESLA;
if (proc_id == PROC_TESLA) {
printk(KERN_WARNING " --Tesla currently"
" not using driverAttrs--\n");
}
drv_attrs.numProc = 1;
drv_attrs.proc_info[PROC_TESLA].max_events = num_events;
drv_attrs.proc_info[PROC_TESLA].reserved_events =
params->num_reserved_events;
/* 32-bit payload supported. */
drv_attrs.proc_info[PROC_TESLA].payload_size = sizeof(int);
drv_attrs.proc_info[PROC_TESLA].proc_id =
params->remote_proc_id;
/* Function table information */
fxn_table.register_event = (void*)&notify_tesladrv_register_event;
fxn_table.unregister_event = (void*)&notify_tesladrv_unregister_event;
fxn_table.send_event = (void*)&notify_tesladrv_sendevent;
fxn_table.disable = (void*)&notify_tesladrv_disable;
fxn_table.restore = (void*)&notify_tesladrv_restore;
fxn_table.disable_event = (void*)&notify_tesladrv_disable_event;
fxn_table.enable_event = (void*)&notify_tesladrv_enable_event;
status = notify_register_driver(driver_name,
&fxn_table, &drv_attrs, &drv_handle);
if (status != NOTIFY_SUCCESS) {
/*! @retval NULL Failed to register driver with Notify module!*/
pr_err("notify_register_driver failed and status = %d\n", status);
status = -EINVAL;
goto func_end;
} else {
/* Allocate memory for the NotifyDriverShm_Object object. */
drv_handle->driver_object = driver_obj =
kmalloc(sizeof(struct notify_tesladrv_object),
GFP_ATOMIC);
if (driver_obj == NULL) {
status = -ENOMEM;
goto func_end;
} else {
memcpy(&(driver_obj->params), (void *) params,
sizeof(struct notify_tesladrv_params));
}
}
}
/*FIXME: Check with MultiProc_getId */
driver_obj->self_id = 1;
driver_obj->other_id = 0;
driver_obj->ctrl_ptr = (struct notify_shmdrv_ctrl *) params->shared_addr;
ctrl_ptr = &(driver_obj->ctrl_ptr->proc_ctrl[driver_obj->self_id]);
ctrl_ptr->self_event_chart = (struct notify_shmdrv_event_entry *)
((int)(driver_obj->ctrl_ptr)
+ sizeof(struct notify_shmdrv_ctrl)
+(sizeof(struct notify_shmdrv_event_entry)
* params->num_events
* driver_obj->other_id));
ctrl_ptr->other_event_chart = (struct notify_shmdrv_event_entry *)
((int)(driver_obj->ctrl_ptr)
+ sizeof(struct notify_shmdrv_ctrl)
+(sizeof(struct notify_shmdrv_event_entry)
* params->num_events
* driver_obj->self_id));
driver_obj->proc_id = params->remote_proc_id;
driver_obj->event_list = kmalloc((sizeof(struct notify_drv_eventlist)
* params->num_events), GFP_ATOMIC);
if (driver_obj->event_list == NULL) {
status = -ENOMEM;
goto func_end;
} else {
memset(driver_obj->event_list, 0,
sizeof(struct notify_drv_eventlist)*params->num_events);
}
driver_obj->reg_chart = kmalloc(sizeof(struct notify_shmdrv_eventreg)
*params->num_events, GFP_ATOMIC);
if (driver_obj->reg_chart == NULL) {
status = -ENOMEM;
goto func_end;
} else {
memset(driver_obj->reg_chart, 0, sizeof(struct notify_shmdrv_eventreg)
*params->num_events);
}
event_list = driver_obj->event_list;
for (i = 0 ; (i < params->num_events) ; i++) {
ctrl_ptr->self_event_chart[i].flag = 0;
driver_obj->reg_chart[i].reg_event_no = (int) -1;
event_list[i].event_handler_count = 0;
INIT_LIST_HEAD(&event_list[i].listeners);
}
ctrl_ptr->reg_mask.mask = 0x0;
/* Enable all events initially.*/
ctrl_ptr->reg_mask.enable_mask = 0xFFFFFFFF;
mbox_hw_config = ntfy_disp_get_config();
mbox_module_no = mbox_hw_config->mbox_modules;
interrupt_no = mbox_hw_config->interrupt_lines[mbox_module_no-1];
mbx_ret_val = ntfy_disp_bind_interrupt(interrupt_no,
(void *)notify_mailbx0_user0_isr, NULL);
/*Set up the ISR on the Modena-Tesla FIFO */
if (mbx_ret_val == 0) {
proc_id = PROC_TESLA;
mbx_ret_val = ntfy_disp_register(mbox_module_no,
(NOTIFYDRV_TESLA_RECV_MBX * 2),
(void *)notify_tesladrv_isr,
(void *)driver_obj);
if (mbx_ret_val == 0) {
mbx_ret_val = ntfy_disp_interrupt_enable(
mbox_module_no, (NOTIFYDRV_TESLA_RECV_MBX * 2));
}
}
/*Set up the ISR on the Modena-Ducati FIFO */
if (mbx_ret_val != 0) {
status = -ENODEV;
WARN_ON(1);
goto func_end;
} else
status = 0;
if (status == 0) {
driver_obj = drv_handle->driver_object;
ctrl_ptr->reg_mask.mask = 0x0;
ctrl_ptr->reg_mask.enable_mask = 0xFFFFFFFF;
ctrl_ptr->recv_init_status = NOTIFYSHMDRV_INIT_STAMP;
ctrl_ptr->send_init_status = NOTIFYSHMDRV_INIT_STAMP;
drv_handle->is_init = NOTIFY_DRIVERINITSTATUS_DONE;
}
func_end:
mutex_unlock(notify_tesladriver_state.gate_handle);
return drv_handle;
}
EXPORT_SYMBOL(notify_tesladrv_create);
/*
* brief Function to delete the instance of tesla driver
*
*/
int notify_tesladrv_delete(struct notify_driver_object **handlePtr)
{
int status = 0;
struct notify_driver_object *drv_handle = NULL;
struct notify_tesladrv_object *driver_obj = NULL;
struct notify_drv_eventlist *event_list;
short int i;
int proc_id;
struct mbox_config *mbox_hw_config;
int mbox_module_no;
int interrupt_no;
int mbx_ret_val = 0;
WARN_ON(handlePtr == NULL);
if (handlePtr == NULL)
return -1;
driver_obj = (struct notify_tesladrv_object *)(*handlePtr)->driver_object;
drv_handle = (*handlePtr);
WARN_ON((*handlePtr)->driver_object == NULL);
/*Uninstall the ISRs & Disable the Mailbox interrupt.*/
mbox_hw_config = ntfy_disp_get_config();
mbox_module_no = mbox_hw_config->mbox_modules;
interrupt_no = mbox_hw_config->interrupt_lines[mbox_module_no-1];
if (drv_handle != NULL) {
status = notify_unregister_driver(drv_handle);
driver_obj = drv_handle->driver_object;
}
if (status != NOTIFY_SUCCESS)
printk(KERN_WARNING "driver is not registerd\n");
if (driver_obj != NULL) {
if (driver_obj->ctrl_ptr != NULL) {
/* Clear initialization status in shared memory. */
driver_obj->ctrl_ptr->proc_ctrl[driver_obj->self_id].recv_init_status =
0x0;
driver_obj->ctrl_ptr->proc_ctrl[driver_obj->self_id].send_init_status =
0x0;
driver_obj->ctrl_ptr = NULL;
}
event_list = driver_obj->event_list;
if (event_list != NULL) {
/* Check if lists were created. */
for (i = 0 ; i < driver_obj->params.num_events ; i++) {
WARN_ON(event_list[i].event_handler_count != 0);
event_list[i].event_handler_count = 0;
list_del((struct list_head *)&event_list[i].listeners);
}
kfree(event_list);
driver_obj->event_list = NULL;
}
/* Check if reg_chart was allocated. */
if (driver_obj->reg_chart != NULL) {
kfree(driver_obj->reg_chart);
driver_obj->reg_chart = NULL;
}
/* Disable the interrupt, Uninstall the ISR and delete it. */
/* Check if ISR was created. */
/*Remove the ISR on the Modena-Tesla FIFO */
proc_id = PROC_TESLA;
ntfy_disp_interrupt_disable(mbox_module_no,
(NOTIFYDRV_TESLA_RECV_MBX * 2));
ntfy_disp_unregister(mbox_module_no,
(NOTIFYDRV_TESLA_RECV_MBX * 2));
/*Remove the generic ISR */
mbx_ret_val = ntfy_disp_unbind_interrupt(interrupt_no);
if (mbx_ret_val != 0)
WARN_ON(1);
kfree(driver_obj);
driver_obj = NULL;
}
return status;
}
EXPORT_SYMBOL(notify_tesladrv_delete);
/*
* brief Destroy the notify tesla module.
*
*/
int notify_tesladrv_destroy(void)
{
int status = 0;
WARN_ON(notify_tesladriver_state.is_setup != true);
/* Check if the gate_handle was created internally. */
if (notify_tesladriver_state.cfg.gate_handle == NULL) {
if (notify_tesladriver_state.gate_handle != NULL) {
kfree(notify_tesladriver_state.gate_handle);
}
}
notify_tesladriver_state.is_setup = false;
return status;
}
EXPORT_SYMBOL(notify_tesladrv_destroy);
/*
* brief Setup the notify tesla module.
*
* This function sets up the notify tesla module. This function
* must be called before any other instance-level APIs can be
* invoked.
* Module-level configuration needs to be provided to this
* function. If the user wishes to change some specific config
* parameters, then notify_tesla_get_config can be called to get
* the configuration filled with the default values. After this,
* only the required configuration values can be changed. If the
* user does not wish to make any change in the default parameters,
* the application can simply call notify_tesla_setup with NULL
* parameters. The default parameters would get automatically used.
*
*/
int notify_tesladrv_setup(struct notify_tesladrv_config *cfg)
{
int status = 0;
struct notify_tesladrv_config tmpCfg;
if (cfg == NULL) {
notify_tesladrv_getconfig(&tmpCfg);
cfg = &tmpCfg;
}
if (cfg->gate_handle != NULL)
notify_tesladriver_state.gate_handle = cfg->gate_handle;
else {
notify_tesladriver_state.gate_handle = kmalloc(sizeof(struct mutex),
GFP_KERNEL);
mutex_init(notify_tesladriver_state.gate_handle);
}
if (notify_tesladriver_state.gate_handle == NULL) {
status = -ENOMEM;
} else {
memcpy(&notify_tesladriver_state.cfg,
cfg, sizeof(struct notify_tesladrv_config));
notify_tesladriver_state.is_setup = true;
}
return status;
}
EXPORT_SYMBOL(notify_tesladrv_setup);
/*
* brief Register a callback for an event with the Notify driver.
*
*/
int notify_tesladrv_register_event(
struct notify_driver_object *handle,
short int proc_id,
int event_no,
fn_notify_cbck fn_notify_cbck,
void *cbck_arg)
{
int status = 0;
int firstReg = false;
bool done = true;
struct notify_drv_eventlistner *event_listener;
struct notify_drv_eventlist *event_list;
struct notify_tesladrv_object *driver_object;
struct notify_shmdrv_eventreg *reg_chart;
struct notify_shmdrv_ctrl *ctrl_ptr;
struct notify_shmdrv_event_entry *self_event_chart;
int i;
int j;
BUG_ON(handle == NULL);
BUG_ON(handle->is_init != NOTIFY_DRIVERINITSTATUS_DONE);
BUG_ON(handle->driver_object == NULL);
BUG_ON(fn_notify_cbck == NULL);
driver_object = (struct notify_tesladrv_object *) handle->driver_object;
ctrl_ptr = driver_object->ctrl_ptr;
/* Allocate memory for event listener. */
event_listener = kmalloc(sizeof(struct notify_drv_eventlistner), GFP_ATOMIC);
if (event_listener == NULL) {
status = -ENOMEM;
goto func_end;
} else {
memset(event_listener, 0, sizeof(struct notify_drv_eventlistner));
}
if (mutex_lock_interruptible(notify_tesladriver_state.gate_handle) != 0)
WARN_ON(1);
event_list = driver_object->event_list;
WARN_ON(event_list == NULL);
event_listener->fn_notify_cbck = fn_notify_cbck;
event_listener->cbck_arg = cbck_arg;
/* Check if this is the first registration for this event. */
if (list_empty((struct list_head *)
&event_list[event_no].listeners)) {
firstReg = true;
self_event_chart = ctrl_ptr->proc_ctrl[driver_object->self_id].
self_event_chart;
/* Clear any pending unserviced event as there are no listeners
* for the pending event
*/
self_event_chart[event_no].flag = DOWN;
}
list_add_tail((struct list_head *)
&(event_listener->element),
(struct list_head *)
&event_list[event_no].listeners);
event_list[event_no].event_handler_count++;
if (firstReg == true) {
reg_chart = driver_object->reg_chart;
for (i = 0 ; i < driver_object->params.num_events ; i++) {
/* Find the correct slot in the registration array. */
if (reg_chart[i].reg_event_no == (int) -1) {
for (j = (i - 1); j >= 0; j--) {
if (event_no < reg_chart[j].reg_event_no) {
reg_chart[j + 1].reg_event_no =
reg_chart[j].reg_event_no;
reg_chart[j + 1].reserved =
reg_chart[j].reserved;
i = j;
} else {
/* End the loop, slot found. */
j = -1;
}
}
reg_chart[i].reg_event_no = event_no;
done = true;
break;
}
}
if (done) {
SET_BIT(ctrl_ptr->proc_ctrl[driver_object->self_id].
reg_mask.mask,
event_no);
} else {
/*! @retval NOTIFY_E_MAXEVENTS Maximum number of
supported events have already been registered. */
status = -EINVAL;
list_del((struct list_head *)&
(event_listener->element));
kfree(event_listener);
}
}
func_end:
mutex_unlock(notify_tesladriver_state.gate_handle);
return status;
}
/*
*
* brief unregister a callback for an event with the Notify driver.
*
*/
int notify_tesladrv_unregister_event(
struct notify_driver_object *handle,
short int proc_id,
int event_no,
fn_notify_cbck fn_notify_cbck,
void *cbck_arg)
{
int status = 0;
struct notify_drv_eventlistner *listener = NULL;
int num_events;
struct notify_tesladrv_object *driver_object;
struct notify_drv_eventlist *event_list;
struct notify_shmdrv_eventreg *reg_chart;
struct notify_shmdrv_ctrl *ctrl_ptr = NULL;
struct notify_drv_eventlistner unreg_info;
struct notify_shmdrv_event_entry *self_event_chart;
int i;
int j;
BUG_ON(fn_notify_cbck == NULL);
BUG_ON(handle == NULL);
BUG_ON(handle->driver_object == NULL);
driver_object = (struct notify_tesladrv_object *) handle->driver_object;
num_events = driver_object->params.num_events;
ctrl_ptr = driver_object->ctrl_ptr;
/* Enter critical section protection. */
if (mutex_lock_interruptible(notify_tesladriver_state.gate_handle) != 0)
WARN_ON(1);
event_list = driver_object->event_list;
unreg_info.fn_notify_cbck = fn_notify_cbck;
unreg_info.cbck_arg = cbck_arg;
notify_tesladrv_qsearch_elem(&event_list[event_no].listeners,
&unreg_info,
&listener);
if (listener == NULL) {
status = -EFAULT;
goto func_end;
}
list_del((struct list_head *)&(listener->element));
event_list[event_no].event_handler_count--;
kfree(listener);
if (list_empty((struct list_head *)
&event_list[event_no].listeners) == true) {
CLEAR_BIT(ctrl_ptr->proc_ctrl[driver_object->self_id].reg_mask.
mask, event_no);
self_event_chart = ctrl_ptr->proc_ctrl[driver_object->self_id].
self_event_chart;
/* Clear any pending unserviced event as there are no
* listeners for the pending event
*/
self_event_chart[event_no].flag = DOWN;
reg_chart = driver_object->reg_chart;
for (i = 0; i < num_events; i++) {
/* Find the correct slot in the registration array. */
if (event_no == reg_chart[i].reg_event_no) {
reg_chart[i].reg_event_no = (int) -1;
for (j = (i + 1);
(reg_chart[j].reg_event_no != (int) -1)
&& (j != num_events); j++) {
reg_chart[j - 1].reg_event_no =
reg_chart[j].reg_event_no;
reg_chart[j - 1].reserved =
reg_chart[j].reserved;
}
if (j == num_events) {
reg_chart[j - 1].reg_event_no = (int) -1;
}
break;
}
}
}
func_end:
mutex_unlock(notify_tesladriver_state.gate_handle);
return status;
}
/*
*brief Send a notification event to the registered users for this
* notification on the specified processor.
*
*/
int notify_tesladrv_sendevent(struct notify_driver_object *handle,
short int proc_id, int event_no,
int payload, short int wait_clear)
{
int status = 0;
struct notify_tesladrv_object*driver_object;
struct notify_shmdrv_ctrl *ctrl_ptr;
int max_poll_count;
struct mbox_config *mbox_hw_config = ntfy_disp_get_config();
int mbox_module_no = mbox_hw_config->mbox_modules;
int mbx_ret_val = 0;
BUG_ON(handle == NULL);
BUG_ON(handle->driver_object == NULL);
driver_object = (struct notify_tesladrv_object *) handle->driver_object;
BUG_ON(event_no > driver_object->params.num_events);
ctrl_ptr = driver_object->ctrl_ptr;
max_poll_count = driver_object->params.send_event_poll_count;
mbx_ret_val = ntfy_disp_send(mbox_module_no,
NOTIFYDRV_TESLA_SEND_MBX, payload);
return status;
}
/*
* brief Disable all events for this Notify driver.
*
*/
void *notify_tesladrv_disable(struct notify_driver_object *handle, u16 proc_id)
{
int mbx_ret_val = KErrNone;
struct mbox_config *mbox_hw_config = ntfy_disp_get_config();
int mbox_module_no = mbox_hw_config->mbox_modules;
mbx_ret_val = ntfy_disp_interrupt_disable(mbox_module_no,
(NOTIFYDRV_TESLA_RECV_MBX * 2));
return NULL; /*No flags to be returned. */
}
/*
* brief Restore the Notify driver to the state before the last disable was
* called.
*
*/
int notify_tesladrv_restore(struct notify_driver_object *handle,
u32 key, u16 proc_id)
{
int mbx_ret_val = 0;
struct mbox_config *mbox_hw_config = ntfy_disp_get_config();
int mbox_module_no = mbox_hw_config->mbox_modules;
(void) handle;
(void) key;
(void) proc_id;
/*Enable the receive interrupt for Tesla */
mbx_ret_val = ntfy_disp_interrupt_enable(mbox_module_no,
(NOTIFYDRV_TESLA_RECV_MBX * 2));
return mbx_ret_val;
}
/*
* brief Disable a specific event for this Notify driver.
*
*/
int notify_tesladrv_disable_event(
struct notify_driver_object *handle,
short int proc_id, int event_no)
{
static int access_count ;
signed long int status = 0;
struct notify_tesladrv_object *driver_object;
BUG_ON(handle == NULL);
BUG_ON(handle->driver_object == NULL);
access_count++;
driver_object = (struct notify_tesladrv_object *) handle->driver_object;
/* Enter critical section protection. */
WARN_ON(mutex_lock_interruptible(notify_tesladriver_state.gate_handle) != 0);
CLEAR_BIT(driver_object->ctrl_ptr->proc_ctrl[driver_object->self_id].
reg_mask.enable_mask, event_no);
/* Leave critical section protection. */
mutex_unlock(notify_tesladriver_state.gate_handle);
return status;
}
/*
* brief Enable a specific event for this Notify driver.
*
*/
int notify_tesladrv_enable_event(struct notify_driver_object *handle,
short int proc_id, int event_no)
{
int status = 0;
struct notify_tesladrv_object *driver_object;
BUG_ON(handle == NULL);
BUG_ON(handle->driver_object == NULL);
driver_object = (struct notify_tesladrv_object *) handle->driver_object;
/* Enter critical section protection. */
WARN_ON(mutex_lock_interruptible(notify_tesladriver_state.gate_handle) != 0);
SET_BIT(driver_object->ctrl_ptr->proc_ctrl[driver_object->self_id].
reg_mask.enable_mask, event_no);
mutex_unlock(notify_tesladriver_state.gate_handle);
return status;
}
/*
* brief Print debug information for the Notify driver.
*
*/
int notify_tesladrv_debug(struct notify_driver_object *handle)
{
int status = 0;
printk(KERN_WARNING "Tesla Debug: Nothing being printed currently.\n");
return status;
}
/*
* brief This function implements the interrupt service routine for the
* interrupt received from the DSP.
*
*/
void notify_tesladrv_isr(void *ref_data)
{
int payload = 0;
int i = 0;
struct list_head *temp;
int j = 0;
struct notify_shmdrv_eventreg *reg_chart;
int event_no;
struct notify_tesladrv_object *drv_object;
struct notify_shmdrv_proc_ctrl *ctrl_ptr;
struct mbox_config *mbox_hw_config = ntfy_disp_get_config();
unsigned long int mbox_module_no = mbox_hw_config->mbox_modules;
signed long int mbx_ret_val = 0;
int num_messages = 0;
int num_events = 0;
drv_object = (struct notify_tesladrv_object *) ref_data;
ctrl_ptr = &(drv_object->ctrl_ptr->proc_ctrl[drv_object->self_id]);
reg_chart = drv_object->reg_chart;
num_events = drv_object->params.num_events;
/* Commented out, since this function will be called in an ISR */
BUG_ON(drv_object == NULL);
do {
event_no = reg_chart[i].reg_event_no;
if (event_no != (unsigned long int) -1) {
if (TEST_BIT(ctrl_ptr->reg_mask.enable_mask, event_no) == 1) {
mbx_ret_val = ntfy_disp_read(mbox_module_no,
NOTIFYDRV_TESLA_RECV_MBX,
&payload,
&num_messages, false);
BUG_ON(mbx_ret_val != 0);
temp = drv_object->event_list[event_no].
listeners.next;
for (j = 0; j <
drv_object->event_list[event_no].
event_handler_count; j++) {
if (temp > (struct list_head *)0) {
((struct
notify_drv_eventlistner
*)temp)->fn_notify_cbck(
drv_object->
proc_id,
event_no,
((struct
notify_drv_eventlistner
*)
temp)->cbck_arg,
payload);
temp = temp->next;
}
}
}
i++;
}
} while ((event_no != (unsigned long int) -1) && (i < num_events));
}
EXPORT_SYMBOL(notify_tesladrv_isr);
/*
* brief This function searchs for a element the List.
*
*/
static void notify_tesladrv_qsearch_elem(struct list_head *list,
struct notify_drv_eventlistner *check_obj,
struct notify_drv_eventlistner **listener)
{
struct list_head *temp = NULL ;
struct notify_drv_eventlistner *l_temp = NULL ;
short int found = false;
BUG_ON(list == NULL);
BUG_ON(check_obj == NULL);
WARN_ON(listener == NULL);
if (listener != NULL)
return;
*listener = NULL;
if ((check_obj != NULL)) {
if (list_empty((struct list_head *)list) == false) {
temp = list->next;
while ((found == false) && (temp != NULL)) {
l_temp =
(struct notify_drv_eventlistner *)(temp);
if ((l_temp->fn_notify_cbck ==
check_obj->fn_notify_cbck) &&
(l_temp->cbck_arg ==
check_obj->cbck_arg)) {
found = true;
} else
temp = temp->next;
}
if (found == true)
*listener = l_temp;
}
}
return;
}
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