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linux-davinci-2.6.23
Commit d6ac1a79 authored by Len Brown's avatar Len Brown
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/home/lenb/src/to-linus branch 'acpi-2.6.12'

parents 577a4f81 87bec66b
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Showing with 980 additions and 233 deletions
arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
View file @ d6ac1a79
......@@ -442,6 +442,13 @@ acpi_cpufreq_cpu_init (
(u32) data->acpi_data.states[i].transition_latency);
cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu);
/*
* the first call to ->target() should result in us actually
* writing something to the appropriate registers.
*/
data->resume = 1;
return (result);
err_freqfree:
......
arch/i386/pci/acpi.c
View file @ d6ac1a79
......@@ -30,6 +30,7 @@ static int __init pci_acpi_init(void)
acpi_irq_penalty_init();
pcibios_scanned++;
pcibios_enable_irq = acpi_pci_irq_enable;
pcibios_disable_irq = acpi_pci_irq_disable;
if (pci_routeirq) {
/*
......
arch/i386/pci/common.c
View file @ d6ac1a79
......@@ -254,3 +254,9 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
return pcibios_enable_irq(dev);
}
void pcibios_disable_device (struct pci_dev *dev)
{
if (pcibios_disable_irq)
pcibios_disable_irq(dev);
}
arch/i386/pci/irq.c
View file @ d6ac1a79
......@@ -56,6 +56,7 @@ struct irq_router_handler {
};
int (*pcibios_enable_irq)(struct pci_dev *dev) = NULL;
void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
/*
* Check passed address for the PCI IRQ Routing Table signature
......
arch/i386/pci/pci.h
View file @ d6ac1a79
......@@ -73,3 +73,4 @@ extern int pcibios_scanned;
extern spinlock_t pci_config_lock;
extern int (*pcibios_enable_irq)(struct pci_dev *dev);
extern void (*pcibios_disable_irq)(struct pci_dev *dev);
drivers/acpi/ec.c
View file @ d6ac1a79
......@@ -59,76 +59,185 @@ ACPI_MODULE_NAME ("acpi_ec")
#define ACPI_EC_DELAY 50 /* Wait 50ms max. during EC ops */
#define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */
#define ACPI_EC_UDELAY 100 /* Poll @ 100us increments */
#define ACPI_EC_UDELAY_COUNT 1000 /* Wait 10ms max. during EC ops */
#define ACPI_EC_COMMAND_READ 0x80
#define ACPI_EC_COMMAND_WRITE 0x81
#define ACPI_EC_BURST_ENABLE 0x82
#define ACPI_EC_BURST_DISABLE 0x83
#define ACPI_EC_COMMAND_QUERY 0x84
static int acpi_ec_add (struct acpi_device *device);
#define EC_POLLING 0xFF
#define EC_BURST 0x00
static int acpi_ec_remove (struct acpi_device *device, int type);
static int acpi_ec_start (struct acpi_device *device);
static int acpi_ec_stop (struct acpi_device *device, int type);
static int acpi_ec_burst_add ( struct acpi_device *device);
static struct acpi_driver acpi_ec_driver = {
.name = ACPI_EC_DRIVER_NAME,
.class = ACPI_EC_CLASS,
.ids = ACPI_EC_HID,
.ops = {
.add = acpi_ec_add,
.add = acpi_ec_burst_add,
.remove = acpi_ec_remove,
.start = acpi_ec_start,
.stop = acpi_ec_stop,
},
};
struct acpi_ec {
acpi_handle handle;
unsigned long uid;
unsigned long gpe_bit;
struct acpi_generic_address status_addr;
struct acpi_generic_address command_addr;
struct acpi_generic_address data_addr;
unsigned long global_lock;
unsigned int expect_event;
atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort*/
atomic_t pending_gpe;
struct semaphore sem;
wait_queue_head_t wait;
union acpi_ec {
struct {
u32 mode;
acpi_handle handle;
unsigned long uid;
unsigned long gpe_bit;
struct acpi_generic_address status_addr;
struct acpi_generic_address command_addr;
struct acpi_generic_address data_addr;
unsigned long global_lock;
} common;
struct {
u32 mode;
acpi_handle handle;
unsigned long uid;
unsigned long gpe_bit;
struct acpi_generic_address status_addr;
struct acpi_generic_address command_addr;
struct acpi_generic_address data_addr;
unsigned long global_lock;
unsigned int expect_event;
atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort*/
atomic_t pending_gpe;
struct semaphore sem;
wait_queue_head_t wait;
}burst;
struct {
u32 mode;
acpi_handle handle;
unsigned long uid;
unsigned long gpe_bit;
struct acpi_generic_address status_addr;
struct acpi_generic_address command_addr;
struct acpi_generic_address data_addr;
unsigned long global_lock;
spinlock_t lock;
}polling;
};
static int acpi_ec_polling_wait ( union acpi_ec *ec, u8 event);
static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event);
static int acpi_ec_polling_read ( union acpi_ec *ec, u8 address, u32 *data);
static int acpi_ec_burst_read( union acpi_ec *ec, u8 address, u32 *data);
static int acpi_ec_polling_write ( union acpi_ec *ec, u8 address, u8 data);
static int acpi_ec_burst_write ( union acpi_ec *ec, u8 address, u8 data);
static int acpi_ec_polling_query ( union acpi_ec *ec, u32 *data);
static int acpi_ec_burst_query ( union acpi_ec *ec, u32 *data);
static void acpi_ec_gpe_polling_query ( void *ec_cxt);
static void acpi_ec_gpe_burst_query ( void *ec_cxt);
static u32 acpi_ec_gpe_polling_handler ( void *data);
static u32 acpi_ec_gpe_burst_handler ( void *data);
static acpi_status __init
acpi_fake_ecdt_polling_callback (
acpi_handle handle,
u32 Level,
void *context,
void **retval);
static acpi_status __init
acpi_fake_ecdt_burst_callback (
acpi_handle handle,
u32 Level,
void *context,
void **retval);
static int __init
acpi_ec_polling_get_real_ecdt(void);
static int __init
acpi_ec_burst_get_real_ecdt(void);
/* If we find an EC via the ECDT, we need to keep a ptr to its context */
static struct acpi_ec *ec_ecdt;
static union acpi_ec *ec_ecdt;
/* External interfaces use first EC only, so remember */
static struct acpi_device *first_ec;
static int acpi_ec_polling_mode;
/* --------------------------------------------------------------------------
Transaction Management
-------------------------------------------------------------------------- */
static inline u32 acpi_ec_read_status(struct acpi_ec *ec)
static inline u32 acpi_ec_read_status(union acpi_ec *ec)
{
u32 status = 0;
acpi_hw_low_level_read(8, &status, &ec->status_addr);
acpi_hw_low_level_read(8, &status, &ec->common.status_addr);
return status;
}
static int acpi_ec_wait(struct acpi_ec *ec, unsigned int event)
static int
acpi_ec_wait (
union acpi_ec *ec,
u8 event)
{
if (acpi_ec_polling_mode)
return acpi_ec_polling_wait (ec, event);
else
return acpi_ec_burst_wait (ec, event);
}
static int
acpi_ec_polling_wait (
union acpi_ec *ec,
u8 event)
{
u32 acpi_ec_status = 0;
u32 i = ACPI_EC_UDELAY_COUNT;
if (!ec)
return -EINVAL;
/* Poll the EC status register waiting for the event to occur. */
switch (event) {
case ACPI_EC_EVENT_OBF:
do {
acpi_hw_low_level_read(8, &acpi_ec_status, &ec->common.status_addr);
if (acpi_ec_status & ACPI_EC_FLAG_OBF)
return 0;
udelay(ACPI_EC_UDELAY);
} while (--i>0);
break;
case ACPI_EC_EVENT_IBE:
do {
acpi_hw_low_level_read(8, &acpi_ec_status, &ec->common.status_addr);
if (!(acpi_ec_status & ACPI_EC_FLAG_IBF))
return 0;
udelay(ACPI_EC_UDELAY);
} while (--i>0);
break;
default:
return -EINVAL;
}
return -ETIME;
}
static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)
{
int result = 0;
ACPI_FUNCTION_TRACE("acpi_ec_wait");
ec->expect_event = event;
ec->burst.expect_event = event;
smp_mb();
result = wait_event_interruptible_timeout(ec->wait,
!ec->expect_event,
result = wait_event_interruptible_timeout(ec->burst.wait,
!ec->burst.expect_event,
msecs_to_jiffies(ACPI_EC_DELAY));
ec->expect_event = 0;
ec->burst.expect_event = 0;
smp_mb();
if (result < 0){
......@@ -160,7 +269,7 @@ static int acpi_ec_wait(struct acpi_ec *ec, unsigned int event)
static int
acpi_ec_enter_burst_mode (
struct acpi_ec *ec)
union acpi_ec *ec)
{
u32 tmp = 0;
int status = 0;
......@@ -170,43 +279,43 @@ acpi_ec_enter_burst_mode (
status = acpi_ec_read_status(ec);
if (status != -EINVAL &&
!(status & ACPI_EC_FLAG_BURST)){
acpi_hw_low_level_write(8, ACPI_EC_BURST_ENABLE, &ec->command_addr);
acpi_hw_low_level_write(8, ACPI_EC_BURST_ENABLE, &ec->common.command_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (status){
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
return_VALUE(-EINVAL);
}
acpi_hw_low_level_read(8, &tmp, &ec->data_addr);
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
if(tmp != 0x90 ) {/* Burst ACK byte*/
return_VALUE(-EINVAL);
}
}
atomic_set(&ec->leaving_burst , 0);
atomic_set(&ec->burst.leaving_burst , 0);
return_VALUE(0);
}
static int
acpi_ec_leave_burst_mode (
struct acpi_ec *ec)
union acpi_ec *ec)
{
int status =0;
ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode");
atomic_set(&ec->leaving_burst , 1);
atomic_set(&ec->burst.leaving_burst , 1);
status = acpi_ec_read_status(ec);
if (status != -EINVAL &&
(status & ACPI_EC_FLAG_BURST)){
acpi_hw_low_level_write(8, ACPI_EC_BURST_DISABLE, &ec->command_addr);
acpi_hw_low_level_write(8, ACPI_EC_BURST_DISABLE, &ec->common.command_addr);
status = acpi_ec_wait(ec, ACPI_EC_FLAG_IBF);
if (status){
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,"------->wait fail\n"));
return_VALUE(-EINVAL);
}
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
status = acpi_ec_read_status(ec);
}
......@@ -215,7 +324,131 @@ acpi_ec_leave_burst_mode (
static int
acpi_ec_read (
struct acpi_ec *ec,
union acpi_ec *ec,
u8 address,
u32 *data)
{
if (acpi_ec_polling_mode)
return acpi_ec_polling_read(ec, address, data);
else
return acpi_ec_burst_read(ec, address, data);
}
static int
acpi_ec_write (
union acpi_ec *ec,
u8 address,
u8 data)
{
if (acpi_ec_polling_mode)
return acpi_ec_polling_write(ec, address, data);
else
return acpi_ec_burst_write(ec, address, data);
}
static int
acpi_ec_polling_read (
union acpi_ec *ec,
u8 address,
u32 *data)
{
acpi_status status = AE_OK;
int result = 0;
unsigned long flags = 0;
u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_read");
if (!ec || !data)
return_VALUE(-EINVAL);
*data = 0;
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
}
spin_lock_irqsave(&ec->polling.lock, flags);
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ, &ec->common.command_addr);
result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (result)
goto end;
acpi_hw_low_level_write(8, address, &ec->common.data_addr);
result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (result)
goto end;
acpi_hw_low_level_read(8, data, &ec->common.data_addr);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n",
*data, address));
end:
spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(result);
}
static int
acpi_ec_polling_write (
union acpi_ec *ec,
u8 address,
u8 data)
{
int result = 0;
acpi_status status = AE_OK;
unsigned long flags = 0;
u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_write");
if (!ec)
return_VALUE(-EINVAL);
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
}
spin_lock_irqsave(&ec->polling.lock, flags);
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE, &ec->common.command_addr);
result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (result)
goto end;
acpi_hw_low_level_write(8, address, &ec->common.data_addr);
result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (result)
goto end;
acpi_hw_low_level_write(8, data, &ec->common.data_addr);
result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (result)
goto end;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n",
data, address));
end:
spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(result);
}
static int
acpi_ec_burst_read (
union acpi_ec *ec,
u8 address,
u32 *data)
{
......@@ -230,51 +463,51 @@ acpi_ec_read (
retry:
*data = 0;
if (ec->global_lock) {
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
}
WARN_ON(in_interrupt());
down(&ec->sem);
down(&ec->burst.sem);
if(acpi_ec_enter_burst_mode(ec))
goto end;
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ, &ec->command_addr);
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ, &ec->common.command_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
if (status) {
goto end;
}
acpi_hw_low_level_write(8, address, &ec->data_addr);
acpi_hw_low_level_write(8, address, &ec->common.data_addr);
status= acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (status){
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
goto end;
}
acpi_hw_low_level_read(8, data, &ec->data_addr);
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_hw_low_level_read(8, data, &ec->common.data_addr);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n",
*data, address));
end:
acpi_ec_leave_burst_mode(ec);
up(&ec->sem);
up(&ec->burst.sem);
if (ec->global_lock)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
if(atomic_read(&ec->leaving_burst) == 2){
if(atomic_read(&ec->burst.leaving_burst) == 2){
ACPI_DEBUG_PRINT((ACPI_DB_INFO,"aborted, retry ...\n"));
while(atomic_read(&ec->pending_gpe)){
while(atomic_read(&ec->burst.pending_gpe)){
msleep(1);
}
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
goto retry;
}
......@@ -283,8 +516,8 @@ end:
static int
acpi_ec_write (
struct acpi_ec *ec,
acpi_ec_burst_write (
union acpi_ec *ec,
u8 address,
u8 data)
{
......@@ -297,14 +530,14 @@ acpi_ec_write (
if (!ec)
return_VALUE(-EINVAL);
retry:
if (ec->global_lock) {
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
}
WARN_ON(in_interrupt());
down(&ec->sem);
down(&ec->burst.sem);
if(acpi_ec_enter_burst_mode(ec))
goto end;
......@@ -312,33 +545,33 @@ retry:
status = acpi_ec_read_status(ec);
if (status != -EINVAL &&
!(status & ACPI_EC_FLAG_BURST)){
acpi_hw_low_level_write(8, ACPI_EC_BURST_ENABLE, &ec->command_addr);
acpi_hw_low_level_write(8, ACPI_EC_BURST_ENABLE, &ec->common.command_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (status)
goto end;
acpi_hw_low_level_read(8, &tmp, &ec->data_addr);
acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr);
if(tmp != 0x90 ) /* Burst ACK byte*/
goto end;
}
/*Now we are in burst mode*/
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE, &ec->command_addr);
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE, &ec->common.command_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
if (status){
goto end;
}
acpi_hw_low_level_write(8, address, &ec->data_addr);
acpi_hw_low_level_write(8, address, &ec->common.data_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (status){
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
goto end;
}
acpi_hw_low_level_write(8, data, &ec->data_addr);
acpi_hw_low_level_write(8, data, &ec->common.data_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
if (status)
goto end;
......@@ -347,17 +580,17 @@ retry:
end:
acpi_ec_leave_burst_mode(ec);
up(&ec->sem);
up(&ec->burst.sem);
if (ec->global_lock)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
if(atomic_read(&ec->leaving_burst) == 2){
if(atomic_read(&ec->burst.leaving_burst) == 2){
ACPI_DEBUG_PRINT((ACPI_DB_INFO,"aborted, retry ...\n"));
while(atomic_read(&ec->pending_gpe)){
while(atomic_read(&ec->burst.pending_gpe)){
msleep(1);
}
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
goto retry;
}
......@@ -370,7 +603,7 @@ end:
int
ec_read(u8 addr, u8 *val)
{
struct acpi_ec *ec;
union acpi_ec *ec;
int err;
u32 temp_data;
......@@ -393,7 +626,7 @@ EXPORT_SYMBOL(ec_read);
int
ec_write(u8 addr, u8 val)
{
struct acpi_ec *ec;
union acpi_ec *ec;
int err;
if (!first_ec)
......@@ -407,10 +640,66 @@ ec_write(u8 addr, u8 val)
}
EXPORT_SYMBOL(ec_write);
static int
acpi_ec_query (
struct acpi_ec *ec,
union acpi_ec *ec,
u32 *data)
{
if (acpi_ec_polling_mode)
return acpi_ec_polling_query(ec, data);
else
return acpi_ec_burst_query(ec, data);
}
static int
acpi_ec_polling_query (
union acpi_ec *ec,
u32 *data)
{
int result = 0;
acpi_status status = AE_OK;
unsigned long flags = 0;
u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_query");
if (!ec || !data)
return_VALUE(-EINVAL);
*data = 0;
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
}
/*
* Query the EC to find out which _Qxx method we need to evaluate.
* Note that successful completion of the query causes the ACPI_EC_SCI
* bit to be cleared (and thus clearing the interrupt source).
*/
spin_lock_irqsave(&ec->polling.lock, flags);
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY, &ec->common.command_addr);
result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (result)
goto end;
acpi_hw_low_level_read(8, data, &ec->common.data_addr);
if (!*data)
result = -ENODATA;
end:
spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock)
acpi_release_global_lock(glk);
return_VALUE(result);
}
static int
acpi_ec_burst_query (
union acpi_ec *ec,
u32 *data)
{
int status = 0;
......@@ -422,13 +711,13 @@ acpi_ec_query (
return_VALUE(-EINVAL);
*data = 0;
if (ec->global_lock) {
if (ec->common.global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
}
down(&ec->sem);
down(&ec->burst.sem);
if(acpi_ec_enter_burst_mode(ec))
goto end;
/*
......@@ -436,28 +725,28 @@ acpi_ec_query (
* Note that successful completion of the query causes the ACPI_EC_SCI
* bit to be cleared (and thus clearing the interrupt source).
*/
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY, &ec->command_addr);
acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY, &ec->common.command_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (status){
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
goto end;
}
acpi_hw_low_level_read(8, data, &ec->data_addr);
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_hw_low_level_read(8, data, &ec->common.data_addr);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
if (!*data)
status = -ENODATA;
end:
acpi_ec_leave_burst_mode(ec);
up(&ec->sem);
up(&ec->burst.sem);
if (ec->global_lock)
if (ec->common.global_lock)
acpi_release_global_lock(glk);
if(atomic_read(&ec->leaving_burst) == 2){
if(atomic_read(&ec->burst.leaving_burst) == 2){
ACPI_DEBUG_PRINT((ACPI_DB_INFO,"aborted, retry ...\n"));
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
status = -ENODATA;
}
return_VALUE(status);
......@@ -468,7 +757,7 @@ end:
Event Management
-------------------------------------------------------------------------- */
struct acpi_ec_query_data {
union acpi_ec_query_data {
acpi_handle handle;
u8 data;
};
......@@ -477,7 +766,59 @@ static void
acpi_ec_gpe_query (
void *ec_cxt)
{
struct acpi_ec *ec = (struct acpi_ec *) ec_cxt;
if (acpi_ec_polling_mode)
acpi_ec_gpe_polling_query(ec_cxt);
else
acpi_ec_gpe_burst_query(ec_cxt);
}
static void
acpi_ec_gpe_polling_query (
void *ec_cxt)
{
union acpi_ec *ec = (union acpi_ec *) ec_cxt;
u32 value = 0;
unsigned long flags = 0;
static char object_name[5] = {'_','Q','0','0','\0'};
const char hex[] = {'0','1','2','3','4','5','6','7',
'8','9','A','B','C','D','E','F'};
ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
if (!ec_cxt)
goto end;
spin_lock_irqsave(&ec->polling.lock, flags);
acpi_hw_low_level_read(8, &value, &ec->common.command_addr);
spin_unlock_irqrestore(&ec->polling.lock, flags);
/* TBD: Implement asynch events!
* NOTE: All we care about are EC-SCI's. Other EC events are
* handled via polling (yuck!). This is because some systems
* treat EC-SCIs as level (versus EDGE!) triggered, preventing
* a purely interrupt-driven approach (grumble, grumble).
*/
if (!(value & ACPI_EC_FLAG_SCI))
goto end;
if (acpi_ec_query(ec, &value))
goto end;
object_name[2] = hex[((value >> 4) & 0x0F)];
object_name[3] = hex[(value & 0x0F)];
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluating %s\n", object_name));
acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);
end:
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
}
static void
acpi_ec_gpe_burst_query (
void *ec_cxt)
{
union acpi_ec *ec = (union acpi_ec *) ec_cxt;
u32 value;
int result = -ENODATA;
static char object_name[5] = {'_','Q','0','0','\0'};
......@@ -497,58 +838,87 @@ acpi_ec_gpe_query (
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluating %s\n", object_name));
acpi_evaluate_object(ec->handle, object_name, NULL, NULL);
acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);
end:
atomic_dec(&ec->pending_gpe);
atomic_dec(&ec->burst.pending_gpe);
return;
}
static u32
acpi_ec_gpe_handler (
void *data)
{
if (acpi_ec_polling_mode)
return acpi_ec_gpe_polling_handler(data);
else
return acpi_ec_gpe_burst_handler(data);
}
static u32
acpi_ec_gpe_polling_handler (
void *data)
{
acpi_status status = AE_OK;
union acpi_ec *ec = (union acpi_ec *) data;
if (!ec)
return ACPI_INTERRUPT_NOT_HANDLED;
acpi_disable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
acpi_ec_gpe_query, ec);
if (status == AE_OK)
return ACPI_INTERRUPT_HANDLED;
else
return ACPI_INTERRUPT_NOT_HANDLED;
}
static u32
acpi_ec_gpe_burst_handler (
void *data)
{
acpi_status status = AE_OK;
u32 value;
struct acpi_ec *ec = (struct acpi_ec *) data;
union acpi_ec *ec = (union acpi_ec *) data;
if (!ec)
return ACPI_INTERRUPT_NOT_HANDLED;
acpi_disable_gpe(NULL, ec->gpe_bit, ACPI_ISR);
acpi_disable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
value = acpi_ec_read_status(ec);
if((value & ACPI_EC_FLAG_IBF) &&
!(value & ACPI_EC_FLAG_BURST) &&
(atomic_read(&ec->leaving_burst) == 0)) {
(atomic_read(&ec->burst.leaving_burst) == 0)) {
/*
* the embedded controller disables
* burst mode for any reason other
* than the burst disable command
* to process critical event.
*/
atomic_set(&ec->leaving_burst , 2); /* block current pending transaction
atomic_set(&ec->burst.leaving_burst , 2); /* block current pending transaction
and retry */
wake_up(&ec->wait);
wake_up(&ec->burst.wait);
}else {
if ((ec->expect_event == ACPI_EC_EVENT_OBF &&
if ((ec->burst.expect_event == ACPI_EC_EVENT_OBF &&
(value & ACPI_EC_FLAG_OBF)) ||
(ec->expect_event == ACPI_EC_EVENT_IBE &&
(ec->burst.expect_event == ACPI_EC_EVENT_IBE &&
!(value & ACPI_EC_FLAG_IBF))) {
ec->expect_event = 0;
wake_up(&ec->wait);
ec->burst.expect_event = 0;
wake_up(&ec->burst.wait);
return ACPI_INTERRUPT_HANDLED;
}
}
if (value & ACPI_EC_FLAG_SCI){
atomic_add(1, &ec->pending_gpe) ;
atomic_add(1, &ec->burst.pending_gpe) ;
status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
acpi_ec_gpe_query, ec);
return status == AE_OK ?
ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
}
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_ISR);
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
return status == AE_OK ?
ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
}
......@@ -585,7 +955,7 @@ acpi_ec_space_handler (
void *region_context)
{
int result = 0;
struct acpi_ec *ec = NULL;
union acpi_ec *ec = NULL;
u64 temp = *value;
acpi_integer f_v = 0;
int i = 0;
......@@ -600,7 +970,7 @@ acpi_ec_space_handler (
return_VALUE(AE_BAD_PARAMETER);
}
ec = (struct acpi_ec *) handler_context;
ec = (union acpi_ec *) handler_context;
next_byte:
switch (function) {
......@@ -661,7 +1031,7 @@ static struct proc_dir_entry *acpi_ec_dir;
static int
acpi_ec_read_info (struct seq_file *seq, void *offset)
{
struct acpi_ec *ec = (struct acpi_ec *) seq->private;
union acpi_ec *ec = (union acpi_ec *) seq->private;
ACPI_FUNCTION_TRACE("acpi_ec_read_info");
......@@ -669,12 +1039,12 @@ acpi_ec_read_info (struct seq_file *seq, void *offset)
goto end;
seq_printf(seq, "gpe bit: 0x%02x\n",
(u32) ec->gpe_bit);
(u32) ec->common.gpe_bit);
seq_printf(seq, "ports: 0x%02x, 0x%02x\n",
(u32) ec->status_addr.address, (u32) ec->data_addr.address);
(u32) ec->common.status_addr.address, (u32) ec->common.data_addr.address);
seq_printf(seq, "use global lock: %s\n",
ec->global_lock?"yes":"no");
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);
ec->common.global_lock?"yes":"no");
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
end:
return_VALUE(0);
......@@ -697,7 +1067,7 @@ static int
acpi_ec_add_fs (
struct acpi_device *device)
{
struct proc_dir_entry *entry;
struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_add_fs");
......@@ -744,13 +1114,82 @@ acpi_ec_remove_fs (
Driver Interface
-------------------------------------------------------------------------- */
static int
acpi_ec_add (
acpi_ec_polling_add (
struct acpi_device *device)
{
int result;
acpi_status status;
struct acpi_ec *ec;
int result = 0;
acpi_status status = AE_OK;
union acpi_ec *ec = NULL;
unsigned long uid;
ACPI_FUNCTION_TRACE("acpi_ec_add");
if (!device)
return_VALUE(-EINVAL);
ec = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
if (!ec)
return_VALUE(-ENOMEM);
memset(ec, 0, sizeof(union acpi_ec));
ec->common.handle = device->handle;
ec->common.uid = -1;
spin_lock_init(&ec->polling.lock);
strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_EC_CLASS);
acpi_driver_data(device) = ec;
/* Use the global lock for all EC transactions? */
acpi_evaluate_integer(ec->common.handle, "_GLK", NULL, &ec->common.global_lock);
/* If our UID matches the UID for the ECDT-enumerated EC,
we now have the *real* EC info, so kill the makeshift one.*/
acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid);
if (ec_ecdt && ec_ecdt->common.uid == uid) {
acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler);
acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit, &acpi_ec_gpe_handler);
kfree(ec_ecdt);
}
/* Get GPE bit assignment (EC events). */
/* TODO: Add support for _GPE returning a package */
status = acpi_evaluate_integer(ec->common.handle, "_GPE", NULL, &ec->common.gpe_bit);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error obtaining GPE bit assignment\n"));
result = -ENODEV;
goto end;
}
result = acpi_ec_add_fs(device);
if (result)
goto end;
printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n",
acpi_device_name(device), acpi_device_bid(device),
(u32) ec->common.gpe_bit);
if (!first_ec)
first_ec = device;
end:
if (result)
kfree(ec);
return_VALUE(result);
}
static int
acpi_ec_burst_add (
struct acpi_device *device)
{
int result = 0;
acpi_status status = AE_OK;
union acpi_ec *ec = NULL;
unsigned long uid;
ACPI_FUNCTION_TRACE("acpi_ec_add");
......@@ -758,39 +1197,39 @@ acpi_ec_add (
if (!device)
return_VALUE(-EINVAL);
ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL);
ec = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
if (!ec)
return_VALUE(-ENOMEM);
memset(ec, 0, sizeof(struct acpi_ec));
ec->handle = device->handle;
ec->uid = -1;
atomic_set(&ec->pending_gpe, 0);
atomic_set(&ec->leaving_burst , 1);
init_MUTEX(&ec->sem);
init_waitqueue_head(&ec->wait);
memset(ec, 0, sizeof(union acpi_ec));
ec->common.handle = device->handle;
ec->common.uid = -1;
atomic_set(&ec->burst.pending_gpe, 0);
atomic_set(&ec->burst.leaving_burst , 1);
init_MUTEX(&ec->burst.sem);
init_waitqueue_head(&ec->burst.wait);
strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_EC_CLASS);
acpi_driver_data(device) = ec;
/* Use the global lock for all EC transactions? */
acpi_evaluate_integer(ec->handle, "_GLK", NULL, &ec->global_lock);
acpi_evaluate_integer(ec->common.handle, "_GLK", NULL, &ec->common.global_lock);
/* If our UID matches the UID for the ECDT-enumerated EC,
we now have the *real* EC info, so kill the makeshift one.*/
acpi_evaluate_integer(ec->handle, "_UID", NULL, &uid);
if (ec_ecdt && ec_ecdt->uid == uid) {
acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid);
if (ec_ecdt && ec_ecdt->common.uid == uid) {
acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler);
acpi_remove_gpe_handler(NULL, ec_ecdt->gpe_bit, &acpi_ec_gpe_handler);
acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit, &acpi_ec_gpe_handler);
kfree(ec_ecdt);
}
/* Get GPE bit assignment (EC events). */
/* TODO: Add support for _GPE returning a package */
status = acpi_evaluate_integer(ec->handle, "_GPE", NULL, &ec->gpe_bit);
status = acpi_evaluate_integer(ec->common.handle, "_GPE", NULL, &ec->common.gpe_bit);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error obtaining GPE bit assignment\n"));
......@@ -804,7 +1243,7 @@ acpi_ec_add (
printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n",
acpi_device_name(device), acpi_device_bid(device),
(u32) ec->gpe_bit);
(u32) ec->common.gpe_bit);
if (!first_ec)
first_ec = device;
......@@ -822,7 +1261,7 @@ acpi_ec_remove (
struct acpi_device *device,
int type)
{
struct acpi_ec *ec;
union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_remove");
......@@ -844,7 +1283,7 @@ acpi_ec_io_ports (
struct acpi_resource *resource,
void *context)
{
struct acpi_ec *ec = (struct acpi_ec *) context;
union acpi_ec *ec = (union acpi_ec *) context;
struct acpi_generic_address *addr;
if (resource->id != ACPI_RSTYPE_IO) {
......@@ -856,10 +1295,10 @@ acpi_ec_io_ports (
* the second address region returned is the status/command
* port.
*/
if (ec->data_addr.register_bit_width == 0) {
addr = &ec->data_addr;
} else if (ec->command_addr.register_bit_width == 0) {
addr = &ec->command_addr;
if (ec->common.data_addr.register_bit_width == 0) {
addr = &ec->common.data_addr;
} else if (ec->common.command_addr.register_bit_width == 0) {
addr = &ec->common.command_addr;
} else {
return AE_CTRL_TERMINATE;
}
......@@ -877,8 +1316,8 @@ static int
acpi_ec_start (
struct acpi_device *device)
{
acpi_status status;
struct acpi_ec *ec;
acpi_status status = AE_OK;
union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_start");
......@@ -893,35 +1332,36 @@ acpi_ec_start (
/*
* Get I/O port addresses. Convert to GAS format.
*/
status = acpi_walk_resources(ec->handle, METHOD_NAME__CRS,
status = acpi_walk_resources(ec->common.handle, METHOD_NAME__CRS,
acpi_ec_io_ports, ec);
if (ACPI_FAILURE(status) || ec->command_addr.register_bit_width == 0) {
if (ACPI_FAILURE(status) || ec->common.command_addr.register_bit_width == 0) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error getting I/O port addresses"));
return_VALUE(-ENODEV);
}
ec->status_addr = ec->command_addr;
ec->common.status_addr = ec->common.command_addr;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "gpe=0x%02x, ports=0x%2x,0x%2x\n",
(u32) ec->gpe_bit, (u32) ec->command_addr.address,
(u32) ec->data_addr.address));
(u32) ec->common.gpe_bit, (u32) ec->common.command_addr.address,
(u32) ec->common.data_addr.address));
/*
* Install GPE handler
*/
status = acpi_install_gpe_handler(NULL, ec->gpe_bit,
status = acpi_install_gpe_handler(NULL, ec->common.gpe_bit,
ACPI_GPE_EDGE_TRIGGERED, &acpi_ec_gpe_handler, ec);
if (ACPI_FAILURE(status)) {
return_VALUE(-ENODEV);
}
acpi_set_gpe_type (NULL, ec->gpe_bit, ACPI_GPE_TYPE_RUNTIME);
acpi_enable_gpe (NULL, ec->gpe_bit, ACPI_NOT_ISR);
acpi_set_gpe_type (NULL, ec->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME);
acpi_enable_gpe (NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
status = acpi_install_address_space_handler (ec->handle,
status = acpi_install_address_space_handler (ec->common.handle,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler,
&acpi_ec_space_setup, ec);
if (ACPI_FAILURE(status)) {
acpi_remove_gpe_handler(NULL, ec->gpe_bit, &acpi_ec_gpe_handler);
acpi_remove_gpe_handler(NULL, ec->common.gpe_bit, &acpi_ec_gpe_handler);
return_VALUE(-ENODEV);
}
......@@ -934,8 +1374,8 @@ acpi_ec_stop (
struct acpi_device *device,
int type)
{
acpi_status status;
struct acpi_ec *ec;
acpi_status status = AE_OK;
union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_stop");
......@@ -944,12 +1384,12 @@ acpi_ec_stop (
ec = acpi_driver_data(device);
status = acpi_remove_address_space_handler(ec->handle,
status = acpi_remove_address_space_handler(ec->common.handle,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
status = acpi_remove_gpe_handler(NULL, ec->gpe_bit, &acpi_ec_gpe_handler);
status = acpi_remove_gpe_handler(NULL, ec->common.gpe_bit, &acpi_ec_gpe_handler);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
......@@ -963,26 +1403,76 @@ acpi_fake_ecdt_callback (
void *context,
void **retval)
{
if (acpi_ec_polling_mode)
return acpi_fake_ecdt_polling_callback(handle,
Level, context, retval);
else
return acpi_fake_ecdt_burst_callback(handle,
Level, context, retval);
}
static acpi_status __init
acpi_fake_ecdt_polling_callback (
acpi_handle handle,
u32 Level,
void *context,
void **retval)
{
acpi_status status;
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
acpi_ec_io_ports, ec_ecdt);
if (ACPI_FAILURE(status))
return status;
ec_ecdt->common.status_addr = ec_ecdt->common.command_addr;
ec_ecdt->common.uid = -1;
acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->common.uid);
status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec_ecdt->common.gpe_bit);
if (ACPI_FAILURE(status))
return status;
spin_lock_init(&ec_ecdt->polling.lock);
ec_ecdt->common.global_lock = TRUE;
ec_ecdt->common.handle = handle;
printk(KERN_INFO PREFIX "GPE=0x%02x, ports=0x%2x, 0x%2x\n",
(u32) ec_ecdt->common.gpe_bit, (u32) ec_ecdt->common.command_addr.address,
(u32) ec_ecdt->common.data_addr.address);
return AE_CTRL_TERMINATE;
}
static acpi_status __init
acpi_fake_ecdt_burst_callback (
acpi_handle handle,
u32 Level,
void *context,
void **retval)
{
acpi_status status;
init_MUTEX(&ec_ecdt->burst.sem);
init_waitqueue_head(&ec_ecdt->burst.wait);
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
acpi_ec_io_ports, ec_ecdt);
if (ACPI_FAILURE(status))
return status;
ec_ecdt->status_addr = ec_ecdt->command_addr;
ec_ecdt->common.status_addr = ec_ecdt->common.command_addr;
ec_ecdt->uid = -1;
acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->uid);
ec_ecdt->common.uid = -1;
acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->common.uid);
status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec_ecdt->gpe_bit);
status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec_ecdt->common.gpe_bit);
if (ACPI_FAILURE(status))
return status;
ec_ecdt->global_lock = TRUE;
ec_ecdt->handle = handle;
ec_ecdt->common.global_lock = TRUE;
ec_ecdt->common.handle = handle;
printk(KERN_INFO PREFIX "GPE=0x%02x, ports=0x%2x, 0x%2x\n",
(u32) ec_ecdt->gpe_bit, (u32) ec_ecdt->command_addr.address,
(u32) ec_ecdt->data_addr.address);
(u32) ec_ecdt->common.gpe_bit, (u32) ec_ecdt->common.command_addr.address,
(u32) ec_ecdt->common.data_addr.address);
return AE_CTRL_TERMINATE;
}
......@@ -1005,12 +1495,12 @@ acpi_ec_fake_ecdt(void)
printk(KERN_INFO PREFIX "Try to make an fake ECDT\n");
ec_ecdt = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL);
ec_ecdt = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
if (!ec_ecdt) {
ret = -ENOMEM;
goto error;
}
memset(ec_ecdt, 0, sizeof(struct acpi_ec));
memset(ec_ecdt, 0, sizeof(union acpi_ec));
status = acpi_get_devices (ACPI_EC_HID,
acpi_fake_ecdt_callback,
......@@ -1030,6 +1520,60 @@ error:
static int __init
acpi_ec_get_real_ecdt(void)
{
if (acpi_ec_polling_mode)
return acpi_ec_polling_get_real_ecdt();
else
return acpi_ec_burst_get_real_ecdt();
}
static int __init
acpi_ec_polling_get_real_ecdt(void)
{
acpi_status status;
struct acpi_table_ecdt *ecdt_ptr;
status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING,
(struct acpi_table_header **) &ecdt_ptr);
if (ACPI_FAILURE(status))
return -ENODEV;
printk(KERN_INFO PREFIX "Found ECDT\n");
/*
* Generate a temporary ec context to use until the namespace is scanned
*/
ec_ecdt = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
if (!ec_ecdt)
return -ENOMEM;
memset(ec_ecdt, 0, sizeof(union acpi_ec));
ec_ecdt->common.command_addr = ecdt_ptr->ec_control;
ec_ecdt->common.status_addr = ecdt_ptr->ec_control;
ec_ecdt->common.data_addr = ecdt_ptr->ec_data;
ec_ecdt->common.gpe_bit = ecdt_ptr->gpe_bit;
spin_lock_init(&ec_ecdt->polling.lock);
/* use the GL just to be safe */
ec_ecdt->common.global_lock = TRUE;
ec_ecdt->common.uid = ecdt_ptr->uid;
status = acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->common.handle);
if (ACPI_FAILURE(status)) {
goto error;
}
return 0;
error:
printk(KERN_ERR PREFIX "Could not use ECDT\n");
kfree(ec_ecdt);
ec_ecdt = NULL;
return -ENODEV;
}
static int __init
acpi_ec_burst_get_real_ecdt(void)
{
acpi_status status;
struct acpi_table_ecdt *ecdt_ptr;
......@@ -1044,22 +1588,22 @@ acpi_ec_get_real_ecdt(void)
/*
* Generate a temporary ec context to use until the namespace is scanned
*/
ec_ecdt = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL);
ec_ecdt = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
if (!ec_ecdt)
return -ENOMEM;
memset(ec_ecdt, 0, sizeof(struct acpi_ec));
init_MUTEX(&ec_ecdt->sem);
init_waitqueue_head(&ec_ecdt->wait);
ec_ecdt->command_addr = ecdt_ptr->ec_control;
ec_ecdt->status_addr = ecdt_ptr->ec_control;
ec_ecdt->data_addr = ecdt_ptr->ec_data;
ec_ecdt->gpe_bit = ecdt_ptr->gpe_bit;
memset(ec_ecdt, 0, sizeof(union acpi_ec));
init_MUTEX(&ec_ecdt->burst.sem);
init_waitqueue_head(&ec_ecdt->burst.wait);
ec_ecdt->common.command_addr = ecdt_ptr->ec_control;
ec_ecdt->common.status_addr = ecdt_ptr->ec_control;
ec_ecdt->common.data_addr = ecdt_ptr->ec_data;
ec_ecdt->common.gpe_bit = ecdt_ptr->gpe_bit;
/* use the GL just to be safe */
ec_ecdt->global_lock = TRUE;
ec_ecdt->uid = ecdt_ptr->uid;
ec_ecdt->common.global_lock = TRUE;
ec_ecdt->common.uid = ecdt_ptr->uid;
status = acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->handle);
status = acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->common.handle);
if (ACPI_FAILURE(status)) {
goto error;
}
......@@ -1092,20 +1636,20 @@ acpi_ec_ecdt_probe (void)
/*
* Install GPE handler
*/
status = acpi_install_gpe_handler(NULL, ec_ecdt->gpe_bit,
status = acpi_install_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
ACPI_GPE_EDGE_TRIGGERED, &acpi_ec_gpe_handler,
ec_ecdt);
if (ACPI_FAILURE(status)) {
goto error;
}
acpi_set_gpe_type (NULL, ec_ecdt->gpe_bit, ACPI_GPE_TYPE_RUNTIME);
acpi_enable_gpe (NULL, ec_ecdt->gpe_bit, ACPI_NOT_ISR);
acpi_set_gpe_type (NULL, ec_ecdt->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME);
acpi_enable_gpe (NULL, ec_ecdt->common.gpe_bit, ACPI_NOT_ISR);
status = acpi_install_address_space_handler (ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler,
&acpi_ec_space_setup, ec_ecdt);
if (ACPI_FAILURE(status)) {
acpi_remove_gpe_handler(NULL, ec_ecdt->gpe_bit,
acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
&acpi_ec_gpe_handler);
goto error;
}
......@@ -1123,7 +1667,7 @@ error:
static int __init acpi_ec_init (void)
{
int result;
int result = 0;
ACPI_FUNCTION_TRACE("acpi_ec_init");
......@@ -1167,3 +1711,10 @@ static int __init acpi_fake_ecdt_setup(char *str)
return 0;
}
__setup("acpi_fake_ecdt", acpi_fake_ecdt_setup);
static int __init acpi_ec_set_polling_mode(char *str)
{
acpi_ec_polling_mode = EC_POLLING;
acpi_ec_driver.ops.add = acpi_ec_polling_add;
return 0;
}
__setup("ec_polling", acpi_ec_set_polling_mode);
drivers/acpi/pci_irq.c
View file @ d6ac1a79
......@@ -269,7 +269,51 @@ acpi_pci_irq_del_prt (int segment, int bus)
/* --------------------------------------------------------------------------
PCI Interrupt Routing Support
-------------------------------------------------------------------------- */
typedef int (*irq_lookup_func)(struct acpi_prt_entry *, int *, int *, char **);
static int
acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
int *edge_level,
int *active_high_low,
char **link)
{
int irq;
ACPI_FUNCTION_TRACE("acpi_pci_allocate_irq");
if (entry->link.handle) {
irq = acpi_pci_link_allocate_irq(entry->link.handle,
entry->link.index, edge_level, active_high_low, link);
if (irq < 0) {
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid IRQ link routing entry\n"));
return_VALUE(-1);
}
} else {
irq = entry->link.index;
*edge_level = ACPI_LEVEL_SENSITIVE;
*active_high_low = ACPI_ACTIVE_LOW;
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IRQ %d\n", irq));
return_VALUE(irq);
}
static int
acpi_pci_free_irq(struct acpi_prt_entry *entry,
int *edge_level,
int *active_high_low,
char **link)
{
int irq;
ACPI_FUNCTION_TRACE("acpi_pci_free_irq");
if (entry->link.handle) {
irq = acpi_pci_link_free_irq(entry->link.handle);
} else {
irq = entry->link.index;
}
return_VALUE(irq);
}
/*
* acpi_pci_irq_lookup
* success: return IRQ >= 0
......@@ -282,12 +326,13 @@ acpi_pci_irq_lookup (
int pin,
int *edge_level,
int *active_high_low,
char **link)
char **link,
irq_lookup_func func)
{
struct acpi_prt_entry *entry = NULL;
int segment = pci_domain_nr(bus);
int bus_nr = bus->number;
int irq;
int ret;
ACPI_FUNCTION_TRACE("acpi_pci_irq_lookup");
......@@ -301,22 +346,8 @@ acpi_pci_irq_lookup (
return_VALUE(-1);
}
if (entry->link.handle) {
irq = acpi_pci_link_get_irq(entry->link.handle,
entry->link.index, edge_level, active_high_low, link);
if (irq < 0) {
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid IRQ link routing entry\n"));
return_VALUE(-1);
}
} else {
irq = entry->link.index;
*edge_level = ACPI_LEVEL_SENSITIVE;
*active_high_low = ACPI_ACTIVE_LOW;
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IRQ %d\n", irq));
return_VALUE(irq);
ret = func(entry, edge_level, active_high_low, link);
return_VALUE(ret);
}
/*
......@@ -330,7 +361,8 @@ acpi_pci_irq_derive (
int pin,
int *edge_level,
int *active_high_low,
char **link)
char **link,
irq_lookup_func func)
{
struct pci_dev *bridge = dev;
int irq = -1;
......@@ -363,7 +395,7 @@ acpi_pci_irq_derive (
}
irq = acpi_pci_irq_lookup(bridge->bus, PCI_SLOT(bridge->devfn),
pin, edge_level, active_high_low, link);
pin, edge_level, active_high_low, link, func);
}
if (irq < 0) {
......@@ -415,7 +447,7 @@ acpi_pci_irq_enable (
* values override any BIOS-assigned IRQs set during boot.
*/
irq = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin,
&edge_level, &active_high_low, &link);
&edge_level, &active_high_low, &link, acpi_pci_allocate_irq);
/*
* If no PRT entry was found, we'll try to derive an IRQ from the
......@@ -423,7 +455,7 @@ acpi_pci_irq_enable (
*/
if (irq < 0)
irq = acpi_pci_irq_derive(dev, pin, &edge_level,
&active_high_low, &link);
&active_high_low, &link, acpi_pci_allocate_irq);
/*
* No IRQ known to the ACPI subsystem - maybe the BIOS /
......@@ -462,7 +494,9 @@ acpi_pci_irq_enable (
EXPORT_SYMBOL(acpi_pci_irq_enable);
#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
/* FIXME: implement x86/x86_64 version */
void __attribute__((weak)) acpi_unregister_gsi(u32 i) {}
void
acpi_pci_irq_disable (
struct pci_dev *dev)
......@@ -489,14 +523,14 @@ acpi_pci_irq_disable (
* First we check the PCI IRQ routing table (PRT) for an IRQ.
*/
gsi = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin,
&edge_level, &active_high_low, NULL);
&edge_level, &active_high_low, NULL, acpi_pci_free_irq);
/*
* If no PRT entry was found, we'll try to derive an IRQ from the
* device's parent bridge.
*/
if (gsi < 0)
gsi = acpi_pci_irq_derive(dev, pin,
&edge_level, &active_high_low, NULL);
&edge_level, &active_high_low, NULL, acpi_pci_free_irq);
if (gsi < 0)
return_VOID;
......@@ -512,4 +546,3 @@ acpi_pci_irq_disable (
return_VOID;
}
#endif /* CONFIG_ACPI_DEALLOCATE_IRQ */
drivers/acpi/pci_link.c
View file @ d6ac1a79
......@@ -68,6 +68,10 @@ static struct acpi_driver acpi_pci_link_driver = {
},
};
/*
* If a link is initialized, we never change its active and initialized
* later even the link is disable. Instead, we just repick the active irq
*/
struct acpi_pci_link_irq {
u8 active; /* Current IRQ */
u8 edge_level; /* All IRQs */
......@@ -76,8 +80,7 @@ struct acpi_pci_link_irq {
u8 possible_count;
u8 possible[ACPI_PCI_LINK_MAX_POSSIBLE];
u8 initialized:1;
u8 suspend_resume:1;
u8 reserved:6;
u8 reserved:7;
};
struct acpi_pci_link {
......@@ -85,12 +88,14 @@ struct acpi_pci_link {
struct acpi_device *device;
acpi_handle handle;
struct acpi_pci_link_irq irq;
int refcnt;
};
static struct {
int count;
struct list_head entries;
} acpi_link;
DECLARE_MUTEX(acpi_link_lock);
/* --------------------------------------------------------------------------
......@@ -532,12 +537,12 @@ static int acpi_pci_link_allocate(
ACPI_FUNCTION_TRACE("acpi_pci_link_allocate");
if (link->irq.suspend_resume) {
acpi_pci_link_set(link, link->irq.active);
link->irq.suspend_resume = 0;
}
if (link->irq.initialized)
if (link->irq.initialized) {
if (link->refcnt == 0)
/* This means the link is disabled but initialized */
acpi_pci_link_set(link, link->irq.active);
return_VALUE(0);
}
/*
* search for active IRQ in list of possible IRQs.
......@@ -596,13 +601,13 @@ static int acpi_pci_link_allocate(
}
/*
* acpi_pci_link_get_irq
* acpi_pci_link_allocate_irq
* success: return IRQ >= 0
* failure: return -1
*/
int
acpi_pci_link_get_irq (
acpi_pci_link_allocate_irq (
acpi_handle handle,
int index,
int *edge_level,
......@@ -613,7 +618,7 @@ acpi_pci_link_get_irq (
struct acpi_device *device = NULL;
struct acpi_pci_link *link = NULL;
ACPI_FUNCTION_TRACE("acpi_pci_link_get_irq");
ACPI_FUNCTION_TRACE("acpi_pci_link_allocate_irq");
result = acpi_bus_get_device(handle, &device);
if (result) {
......@@ -633,21 +638,70 @@ acpi_pci_link_get_irq (
return_VALUE(-1);
}
if (acpi_pci_link_allocate(link))
down(&acpi_link_lock);
if (acpi_pci_link_allocate(link)) {
up(&acpi_link_lock);
return_VALUE(-1);
}
if (!link->irq.active) {
up(&acpi_link_lock);
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link active IRQ is 0!\n"));
return_VALUE(-1);
}
link->refcnt ++;
up(&acpi_link_lock);
if (edge_level) *edge_level = link->irq.edge_level;
if (active_high_low) *active_high_low = link->irq.active_high_low;
if (name) *name = acpi_device_bid(link->device);
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Link %s is referenced\n", acpi_device_bid(link->device)));
return_VALUE(link->irq.active);
}
/*
* We don't change link's irq information here. After it is reenabled, we
* continue use the info
*/
int
acpi_pci_link_free_irq(acpi_handle handle)
{
struct acpi_device *device = NULL;
struct acpi_pci_link *link = NULL;
acpi_status result;
ACPI_FUNCTION_TRACE("acpi_pci_link_free_irq");
result = acpi_bus_get_device(handle, &device);
if (result) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link device\n"));
return_VALUE(-1);
}
link = (struct acpi_pci_link *) acpi_driver_data(device);
if (!link) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
return_VALUE(-1);
}
down(&acpi_link_lock);
if (!link->irq.initialized) {
up(&acpi_link_lock);
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link isn't initialized\n"));
return_VALUE(-1);
}
link->refcnt --;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Link %s is dereferenced\n", acpi_device_bid(link->device)));
if (link->refcnt == 0) {
acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
}
up(&acpi_link_lock);
return_VALUE(link->irq.active);
}
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
......@@ -677,6 +731,7 @@ acpi_pci_link_add (
strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
acpi_driver_data(device) = link;
down(&acpi_link_lock);
result = acpi_pci_link_get_possible(link);
if (result)
goto end;
......@@ -712,6 +767,7 @@ acpi_pci_link_add (
end:
/* disable all links -- to be activated on use */
acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
up(&acpi_link_lock);
if (result)
kfree(link);
......@@ -726,19 +782,32 @@ irqrouter_suspend(
{
struct list_head *node = NULL;
struct acpi_pci_link *link = NULL;
int ret = 0;
ACPI_FUNCTION_TRACE("irqrouter_suspend");
list_for_each(node, &acpi_link.entries) {
link = list_entry(node, struct acpi_pci_link, node);
if (!link) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Invalid link context\n"));
continue;
}
if (link->irq.active && link->irq.initialized)
link->irq.suspend_resume = 1;
if (link->irq.initialized && link->refcnt != 0
/* We ignore legacy IDE device irq */
&& link->irq.active != 14 && link->irq.active !=15) {
printk(KERN_WARNING PREFIX
"%d drivers with interrupt %d neglected to call"
" pci_disable_device at .suspend\n",
link->refcnt,
link->irq.active);
printk(KERN_WARNING PREFIX
"Fix the driver, or rmmod before suspend\n");
link->refcnt = 0;
ret = -EINVAL;
}
}
return_VALUE(0);
return_VALUE(ret);
}
......@@ -756,8 +825,9 @@ acpi_pci_link_remove (
link = (struct acpi_pci_link *) acpi_driver_data(device);
/* TBD: Acquire/release lock */
down(&acpi_link_lock);
list_del(&link->node);
up(&acpi_link_lock);
kfree(link);
......@@ -849,6 +919,7 @@ int __init acpi_irq_balance_set(char *str)
__setup("acpi_irq_balance", acpi_irq_balance_set);
/* FIXME: we will remove this interface after all drivers call pci_disable_device */
static struct sysdev_class irqrouter_sysdev_class = {
set_kset_name("irqrouter"),
.suspend = irqrouter_suspend,
......
drivers/acpi/processor_idle.c
View file @ d6ac1a79
......@@ -81,30 +81,33 @@ module_param(bm_history, uint, 0644);
*
* To skip this limit, boot/load with a large max_cstate limit.
*/
static int no_c2c3(struct dmi_system_id *id)
static int set_max_cstate(struct dmi_system_id *id)
{
if (max_cstate > ACPI_PROCESSOR_MAX_POWER)
return 0;
printk(KERN_NOTICE PREFIX "%s detected - C2,C3 disabled."
printk(KERN_NOTICE PREFIX "%s detected - %s disabled."
" Override with \"processor.max_cstate=%d\"\n", id->ident,
((int)id->driver_data == 1)? "C2,C3":"C3",
ACPI_PROCESSOR_MAX_POWER + 1);
max_cstate = 1;
max_cstate = (int)id->driver_data;
return 0;
}
static struct dmi_system_id __initdata processor_power_dmi_table[] = {
{ no_c2c3, "IBM ThinkPad R40e", {
{ set_max_cstate, "IBM ThinkPad R40e", {
DMI_MATCH(DMI_BIOS_VENDOR,"IBM"),
DMI_MATCH(DMI_BIOS_VERSION,"1SET60WW") }},
{ no_c2c3, "Medion 41700", {
DMI_MATCH(DMI_BIOS_VERSION,"1SET60WW") }, (void*)1},
{ set_max_cstate, "Medion 41700", {
DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
DMI_MATCH(DMI_BIOS_VERSION,"R01-A1J") }, (void*)1},
{ set_max_cstate, "Clevo 5600D", {
DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
DMI_MATCH(DMI_BIOS_VERSION,"R01-A1J") }},
DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307") },
(void*)2},
{},
};
......@@ -549,7 +552,8 @@ static int acpi_processor_get_power_info_default_c1 (struct acpi_processor *pr)
ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_default_c1");
for (i = 0; i < ACPI_PROCESSOR_MAX_POWER; i++)
memset(pr->power.states, 0, sizeof(struct acpi_processor_cx));
memset(&(pr->power.states[i]), 0,
sizeof(struct acpi_processor_cx));
/* if info is obtained from pblk/fadt, type equals state */
pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;
......@@ -580,7 +584,8 @@ static int acpi_processor_get_power_info_cst (struct acpi_processor *pr)
pr->power.count = 0;
for (i = 0; i < ACPI_PROCESSOR_MAX_POWER; i++)
memset(pr->power.states, 0, sizeof(struct acpi_processor_cx));
memset(&(pr->power.states[i]), 0,
sizeof(struct acpi_processor_cx));
status = acpi_evaluate_object(pr->handle, "_CST", NULL, &buffer);
if (ACPI_FAILURE(status)) {
......@@ -763,7 +768,6 @@ static void acpi_processor_power_verify_c3(
}
if (pr->flags.bm_check) {
printk("Disabling BM access before entering C3\n");
/* bus mastering control is necessary */
if (!pr->flags.bm_control) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
......@@ -771,7 +775,6 @@ static void acpi_processor_power_verify_c3(
return_VOID;
}
} else {
printk("Invalidating cache before entering C3\n");
/*
* WBINVD should be set in fadt, for C3 state to be
* supported on when bm_check is not required.
......@@ -842,7 +845,7 @@ static int acpi_processor_get_power_info (
result = acpi_processor_get_power_info_cst(pr);
if ((result) || (acpi_processor_power_verify(pr) < 2)) {
result = acpi_processor_get_power_info_fadt(pr);
if (result)
if ((result) || (acpi_processor_power_verify(pr) < 2))
result = acpi_processor_get_power_info_default_c1(pr);
}
......
drivers/net/sk98lin/skge.c
View file @ d6ac1a79
......@@ -5133,6 +5133,67 @@ static void __devexit skge_remove_one(struct pci_dev *pdev)
kfree(pAC);
}
#ifdef CONFIG_PM
static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *dev = pci_get_drvdata(pdev);
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
struct net_device *otherdev = pAC->dev[1];
if (pNet->Up) {
pAC->WasIfUp[0] = SK_TRUE;
DoPrintInterfaceChange = SK_FALSE;
SkDrvDeInitAdapter(pAC, 0); /* performs SkGeClose */
}
if (otherdev != dev) {
pNet = netdev_priv(otherdev);
if (pNet->Up) {
pAC->WasIfUp[1] = SK_TRUE;
DoPrintInterfaceChange = SK_FALSE;
SkDrvDeInitAdapter(pAC, 1); /* performs SkGeClose */
}
}
pci_save_state(pdev);
pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
if (pAC->AllocFlag & SK_ALLOC_IRQ) {
free_irq(dev->irq, dev);
}
pci_disable_device(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
}
static int skge_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
pci_enable_device(pdev);
pci_set_master(pdev);
if (pAC->GIni.GIMacsFound == 2)
request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
else
request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, pAC->Name, dev);
if (pAC->WasIfUp[0] == SK_TRUE) {
DoPrintInterfaceChange = SK_FALSE;
SkDrvInitAdapter(pAC, 0); /* first device */
}
if (pAC->dev[1] != dev && pAC->WasIfUp[1] == SK_TRUE) {
DoPrintInterfaceChange = SK_FALSE;
SkDrvInitAdapter(pAC, 1); /* first device */
}
return 0;
}
#endif
static struct pci_device_id skge_pci_tbl[] = {
{ PCI_VENDOR_ID_3COM, 0x1700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_3COM, 0x80eb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
......@@ -5158,6 +5219,8 @@ static struct pci_driver skge_driver = {
.id_table = skge_pci_tbl,
.probe = skge_probe_one,
.remove = __devexit_p(skge_remove_one),
.suspend = skge_suspend,
.resume = skge_resume,
};
static int __init skge_init(void)
......
drivers/pcmcia/yenta_socket.c
View file @ d6ac1a79
......@@ -1107,6 +1107,8 @@ static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state)
pci_read_config_dword(dev, 17*4, &socket->saved_state[1]);
pci_disable_device(dev);
free_irq(dev->irq, socket);
/*
* Some laptops (IBM T22) do not like us putting the Cardbus
* bridge into D3. At a guess, some other laptop will
......@@ -1132,6 +1134,13 @@ static int yenta_dev_resume (struct pci_dev *dev)
pci_enable_device(dev);
pci_set_master(dev);
if (socket->cb_irq)
if (request_irq(socket->cb_irq, yenta_interrupt,
SA_SHIRQ, "yenta", socket)) {
printk(KERN_WARNING "Yenta: request_irq() failed on resume!\n");
socket->cb_irq = 0;
}
if (socket->type && socket->type->restore_state)
socket->type->restore_state(socket);
}
......
include/acpi/acpi_drivers.h
View file @ d6ac1a79
......@@ -56,8 +56,9 @@
/* ACPI PCI Interrupt Link (pci_link.c) */
int acpi_irq_penalty_init (void);
int acpi_pci_link_get_irq (acpi_handle handle, int index, int *edge_level,
int acpi_pci_link_allocate_irq (acpi_handle handle, int index, int *edge_level,
int *active_high_low, char **name);
int acpi_pci_link_free_irq(acpi_handle handle);
/* ACPI PCI Interrupt Routing (pci_irq.c) */
......
include/linux/acpi.h
View file @ d6ac1a79
......@@ -453,9 +453,7 @@ int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
* If this matches the last registration, any IRQ resources for gsi
* are freed.
*/
#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
void acpi_unregister_gsi (u32 gsi);
#endif
#ifdef CONFIG_ACPI_PCI
......@@ -480,9 +478,7 @@ struct pci_dev;
int acpi_pci_irq_enable (struct pci_dev *dev);
void acpi_penalize_isa_irq(int irq, int active);
#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
void acpi_pci_irq_disable (struct pci_dev *dev);
#endif
struct acpi_pci_driver {
struct acpi_pci_driver *next;
......
sound/pci/intel8x0.c
View file @ d6ac1a79
......@@ -2373,6 +2373,8 @@ static int intel8x0_suspend(snd_card_t *card, pm_message_t state)
for (i = 0; i < 3; i++)
if (chip->ac97[i])
snd_ac97_suspend(chip->ac97[i]);
if (chip->irq >= 0)
free_irq(chip->irq, (void *)chip);
pci_disable_device(chip->pci);
return 0;
}
......@@ -2384,7 +2386,9 @@ static int intel8x0_resume(snd_card_t *card)
pci_enable_device(chip->pci);
pci_set_master(chip->pci);
snd_intel8x0_chip_init(chip, 0);
request_irq(chip->irq, snd_intel8x0_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip);
synchronize_irq(chip->irq);
snd_intel8x0_chip_init(chip, 1);
/* refill nocache */
if (chip->fix_nocache)
......
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