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-rw-r--r--drivers/acpi/ec.c869
1 files changed, 389 insertions, 480 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 31067a0a367..7e1a445955b 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -38,130 +38,112 @@
#include <acpi/actypes.h>
#define _COMPONENT ACPI_EC_COMPONENT
-ACPI_MODULE_NAME ("acpi_ec")
-
+ACPI_MODULE_NAME("acpi_ec")
#define ACPI_EC_COMPONENT 0x00100000
#define ACPI_EC_CLASS "embedded_controller"
#define ACPI_EC_HID "PNP0C09"
#define ACPI_EC_DRIVER_NAME "ACPI Embedded Controller Driver"
#define ACPI_EC_DEVICE_NAME "Embedded Controller"
#define ACPI_EC_FILE_INFO "info"
-
-
#define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */
#define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */
#define ACPI_EC_FLAG_BURST 0x10 /* burst mode */
#define ACPI_EC_FLAG_SCI 0x20 /* EC-SCI occurred */
-
#define ACPI_EC_EVENT_OBF 0x01 /* Output buffer full */
#define ACPI_EC_EVENT_IBE 0x02 /* Input buffer empty */
-
#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_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
-
#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 int acpi_ec_polling_add ( struct acpi_device *device);
+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 int acpi_ec_polling_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_polling_add,
- .remove = acpi_ec_remove,
- .start = acpi_ec_start,
- .stop = acpi_ec_stop,
- },
+ .name = ACPI_EC_DRIVER_NAME,
+ .class = ACPI_EC_CLASS,
+ .ids = ACPI_EC_HID,
+ .ops = {
+ .add = acpi_ec_polling_add,
+ .remove = acpi_ec_remove,
+ .start = acpi_ec_start,
+ .stop = acpi_ec_stop,
+ },
};
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;
+ 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;
+ 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;
+ 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_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 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);
+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);
+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 union acpi_ec *ec_ecdt;
+static union acpi_ec *ec_ecdt;
/* External interfaces use first EC only, so remember */
static struct acpi_device *first_ec;
@@ -173,30 +155,24 @@ static int acpi_ec_polling_mode = EC_POLLING;
static inline u32 acpi_ec_read_status(union acpi_ec *ec)
{
- u32 status = 0;
+ u32 status = 0;
acpi_hw_low_level_read(8, &status, &ec->common.status_addr);
return status;
}
-static int
-acpi_ec_wait (
- union acpi_ec *ec,
- u8 event)
+static int acpi_ec_wait(union acpi_ec *ec, u8 event)
{
- if (acpi_ec_polling_mode)
- return acpi_ec_polling_wait (ec, event);
+ if (acpi_ec_polling_mode)
+ return acpi_ec_polling_wait(ec, event);
else
- return acpi_ec_burst_wait (ec, event);
+ return acpi_ec_burst_wait(ec, event);
}
-static int
-acpi_ec_polling_wait (
- union acpi_ec *ec,
- u8 event)
+static int acpi_ec_polling_wait(union acpi_ec *ec, u8 event)
{
- u32 acpi_ec_status = 0;
- u32 i = ACPI_EC_UDELAY_COUNT;
+ u32 acpi_ec_status = 0;
+ u32 i = ACPI_EC_UDELAY_COUNT;
if (!ec)
return -EINVAL;
@@ -205,19 +181,21 @@ acpi_ec_polling_wait (
switch (event) {
case ACPI_EC_EVENT_OBF:
do {
- acpi_hw_low_level_read(8, &acpi_ec_status, &ec->common.status_addr);
+ 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);
+ } while (--i > 0);
break;
case ACPI_EC_EVENT_IBE:
do {
- acpi_hw_low_level_read(8, &acpi_ec_status, &ec->common.status_addr);
+ 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);
+ } while (--i > 0);
break;
default:
return -EINVAL;
@@ -227,7 +205,7 @@ acpi_ec_polling_wait (
}
static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)
{
- int result = 0;
+ int result = 0;
ACPI_FUNCTION_TRACE("acpi_ec_wait");
@@ -251,9 +229,9 @@ static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)
}
result = wait_event_timeout(ec->burst.wait,
- !ec->burst.expect_event,
- msecs_to_jiffies(ACPI_EC_DELAY));
-
+ !ec->burst.expect_event,
+ msecs_to_jiffies(ACPI_EC_DELAY));
+
ec->burst.expect_event = 0;
smp_mb();
@@ -277,43 +255,37 @@ static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)
return_VALUE(-ETIME);
}
-
-
-static int
-acpi_ec_enter_burst_mode (
- union acpi_ec *ec)
+static int acpi_ec_enter_burst_mode(union acpi_ec *ec)
{
- u32 tmp = 0;
- int status = 0;
+ u32 tmp = 0;
+ int status = 0;
ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode");
status = acpi_ec_read_status(ec);
- if (status != -EINVAL &&
- !(status & ACPI_EC_FLAG_BURST)){
+ if (status != -EINVAL && !(status & ACPI_EC_FLAG_BURST)) {
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
- if(status)
+ if (status)
goto end;
- acpi_hw_low_level_write(8, ACPI_EC_BURST_ENABLE, &ec->common.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)
return_VALUE(-EINVAL);
acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr);
- if(tmp != 0x90 ) {/* Burst ACK byte*/
+ if (tmp != 0x90) { /* Burst ACK byte */
return_VALUE(-EINVAL);
}
}
- atomic_set(&ec->burst.leaving_burst , 0);
+ atomic_set(&ec->burst.leaving_burst, 0);
return_VALUE(0);
-end:
+ end:
printk("Error in acpi_ec_wait\n");
return_VALUE(-1);
}
-static int
-acpi_ec_leave_burst_mode (
- union acpi_ec *ec)
+static int acpi_ec_leave_burst_mode(union acpi_ec *ec)
{
ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode");
@@ -322,38 +294,26 @@ acpi_ec_leave_burst_mode (
return_VALUE(0);
}
-static int
-acpi_ec_read (
- union acpi_ec *ec,
- u8 address,
- u32 *data)
+static int acpi_ec_read(union acpi_ec *ec, u8 address, u32 * data)
{
- if (acpi_ec_polling_mode)
+ 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)
+static int acpi_ec_write(union acpi_ec *ec, u8 address, u8 data)
{
- if (acpi_ec_polling_mode)
+ 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)
+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_status status = AE_OK;
+ int result = 0;
+ unsigned long flags = 0;
+ u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_read");
@@ -370,7 +330,8 @@ acpi_ec_polling_read (
spin_lock_irqsave(&ec->polling.lock, flags);
- acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ, &ec->common.command_addr);
+ 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;
@@ -383,9 +344,9 @@ acpi_ec_polling_read (
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:
+ *data, address));
+
+ end:
spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock)
@@ -394,17 +355,12 @@ end:
return_VALUE(result);
}
-
-static int
-acpi_ec_polling_write (
- union acpi_ec *ec,
- u8 address,
- u8 data)
+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;
+ int result = 0;
+ acpi_status status = AE_OK;
+ unsigned long flags = 0;
+ u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_write");
@@ -419,7 +375,8 @@ acpi_ec_polling_write (
spin_lock_irqsave(&ec->polling.lock, flags);
- acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE, &ec->common.command_addr);
+ 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;
@@ -435,9 +392,9 @@ acpi_ec_polling_write (
goto end;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n",
- data, address));
+ data, address));
-end:
+ end:
spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock)
@@ -446,14 +403,10 @@ end:
return_VALUE(result);
}
-static int
-acpi_ec_burst_read (
- union acpi_ec *ec,
- u8 address,
- u32 *data)
+static int acpi_ec_burst_read(union acpi_ec *ec, u8 address, u32 * data)
{
- int status = 0;
- u32 glk;
+ int status = 0;
+ u32 glk;
ACPI_FUNCTION_TRACE("acpi_ec_read");
@@ -477,23 +430,24 @@ acpi_ec_burst_read (
printk("read EC, IB not empty\n");
goto end;
}
- acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ, &ec->common.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);
if (status) {
printk("read EC, IB not empty\n");
}
acpi_hw_low_level_write(8, address, &ec->common.data_addr);
- status= acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
- if (status){
+ status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
+ if (status) {
printk("read EC, OB not full\n");
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:
+ *data, address));
+
+ end:
acpi_ec_leave_burst_mode(ec);
up(&ec->burst.sem);
@@ -503,15 +457,10 @@ end:
return_VALUE(status);
}
-
-static int
-acpi_ec_burst_write (
- union acpi_ec *ec,
- u8 address,
- u8 data)
+static int acpi_ec_burst_write(union acpi_ec *ec, u8 address, u8 data)
{
- int status = 0;
- u32 glk;
+ int status = 0;
+ u32 glk;
ACPI_FUNCTION_TRACE("acpi_ec_write");
@@ -530,25 +479,26 @@ acpi_ec_burst_write (
acpi_ec_enter_burst_mode(ec);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
- if ( status) {
+ if (status) {
printk("write EC, IB not empty\n");
}
- acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE, &ec->common.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);
if (status) {
- printk ("write EC, IB not empty\n");
+ printk("write EC, IB not empty\n");
}
acpi_hw_low_level_write(8, address, &ec->common.data_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
- if (status){
+ if (status) {
printk("write EC, IB not empty\n");
}
acpi_hw_low_level_write(8, data, &ec->common.data_addr);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n",
- data, address));
+ data, address));
acpi_ec_leave_burst_mode(ec);
up(&ec->burst.sem);
@@ -562,8 +512,7 @@ acpi_ec_burst_write (
/*
* Externally callable EC access functions. For now, assume 1 EC only
*/
-int
-ec_read(u8 addr, u8 *val)
+int ec_read(u8 addr, u8 * val)
{
union acpi_ec *ec;
int err;
@@ -579,14 +528,13 @@ ec_read(u8 addr, u8 *val)
if (!err) {
*val = temp_data;
return 0;
- }
- else
+ } else
return err;
}
+
EXPORT_SYMBOL(ec_read);
-int
-ec_write(u8 addr, u8 val)
+int ec_write(u8 addr, u8 val)
{
union acpi_ec *ec;
int err;
@@ -600,27 +548,22 @@ ec_write(u8 addr, u8 val)
return err;
}
+
EXPORT_SYMBOL(ec_write);
-static int
-acpi_ec_query (
- union acpi_ec *ec,
- u32 *data)
+static int acpi_ec_query(union acpi_ec *ec, u32 * data)
{
- if (acpi_ec_polling_mode)
+ 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)
+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;
+ int result = 0;
+ acpi_status status = AE_OK;
+ unsigned long flags = 0;
+ u32 glk = 0;
ACPI_FUNCTION_TRACE("acpi_ec_query");
@@ -642,7 +585,8 @@ acpi_ec_polling_query (
*/
spin_lock_irqsave(&ec->polling.lock, flags);
- acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY, &ec->common.command_addr);
+ 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;
@@ -651,7 +595,7 @@ acpi_ec_polling_query (
if (!*data)
result = -ENODATA;
-end:
+ end:
spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock)
@@ -659,13 +603,10 @@ end:
return_VALUE(result);
}
-static int
-acpi_ec_burst_query (
- union acpi_ec *ec,
- u32 *data)
+static int acpi_ec_burst_query(union acpi_ec *ec, u32 * data)
{
- int status = 0;
- u32 glk;
+ int status = 0;
+ u32 glk;
ACPI_FUNCTION_TRACE("acpi_ec_query");
@@ -691,9 +632,10 @@ acpi_ec_burst_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->common.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){
+ if (status) {
printk("query EC, OB not full\n");
goto end;
}
@@ -702,7 +644,7 @@ acpi_ec_burst_query (
if (!*data)
status = -ENODATA;
-end:
+ end:
up(&ec->burst.sem);
if (ec->common.global_lock)
@@ -711,36 +653,32 @@ end:
return_VALUE(status);
}
-
/* --------------------------------------------------------------------------
Event Management
-------------------------------------------------------------------------- */
union acpi_ec_query_data {
- acpi_handle handle;
- u8 data;
+ acpi_handle handle;
+ u8 data;
};
-static void
-acpi_ec_gpe_query (
- void *ec_cxt)
+static void acpi_ec_gpe_query(void *ec_cxt)
{
- if (acpi_ec_polling_mode)
+ 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)
+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'};
+ 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");
@@ -770,19 +708,18 @@ acpi_ec_gpe_polling_query (
acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);
-end:
+ end:
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
}
-static void
-acpi_ec_gpe_burst_query (
- void *ec_cxt)
+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'};
- const char hex[] = {'0','1','2','3','4','5','6','7',
- '8','9','A','B','C','D','E','F'};
+ union acpi_ec *ec = (union acpi_ec *)ec_cxt;
+ u32 value;
+ int result = -ENODATA;
+ 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");
@@ -798,26 +735,22 @@ acpi_ec_gpe_burst_query (
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluating %s\n", object_name));
acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);
-end:
+ end:
atomic_dec(&ec->burst.pending_gpe);
return;
}
-static u32
-acpi_ec_gpe_handler (
- void *data)
+static u32 acpi_ec_gpe_handler(void *data)
{
- if (acpi_ec_polling_mode)
+ if (acpi_ec_polling_mode)
return acpi_ec_gpe_polling_handler(data);
else
- return acpi_ec_gpe_burst_handler(data);
+ return acpi_ec_gpe_burst_handler(data);
}
-static u32
-acpi_ec_gpe_polling_handler (
- void *data)
+static u32 acpi_ec_gpe_polling_handler(void *data)
{
- acpi_status status = AE_OK;
- union acpi_ec *ec = (union acpi_ec *) data;
+ acpi_status status = AE_OK;
+ union acpi_ec *ec = (union acpi_ec *)data;
if (!ec)
return ACPI_INTERRUPT_NOT_HANDLED;
@@ -825,20 +758,18 @@ acpi_ec_gpe_polling_handler (
acpi_disable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
- acpi_ec_gpe_query, ec);
+ 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)
+static u32 acpi_ec_gpe_burst_handler(void *data)
{
- acpi_status status = AE_OK;
- u32 value;
- union acpi_ec *ec = (union acpi_ec *) data;
+ acpi_status status = AE_OK;
+ u32 value;
+ union acpi_ec *ec = (union acpi_ec *)data;
if (!ec)
return ACPI_INTERRUPT_NOT_HANDLED;
@@ -846,7 +777,7 @@ acpi_ec_gpe_burst_handler (
acpi_clear_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
value = acpi_ec_read_status(ec);
- switch ( ec->burst.expect_event) {
+ switch (ec->burst.expect_event) {
case ACPI_EC_EVENT_OBF:
if (!(value & ACPI_EC_FLAG_OBF))
break;
@@ -860,16 +791,16 @@ acpi_ec_gpe_burst_handler (
break;
}
- if (value & ACPI_EC_FLAG_SCI){
- atomic_add(1, &ec->burst.pending_gpe) ;
+ if (value & ACPI_EC_FLAG_SCI) {
+ atomic_add(1, &ec->burst.pending_gpe);
status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
- acpi_ec_gpe_query, ec);
+ acpi_ec_gpe_query, ec);
return status == AE_OK ?
- ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
- }
+ ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
+ }
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
return status == AE_OK ?
- ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
+ ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
}
/* --------------------------------------------------------------------------
@@ -877,37 +808,31 @@ acpi_ec_gpe_burst_handler (
-------------------------------------------------------------------------- */
static acpi_status
-acpi_ec_space_setup (
- acpi_handle region_handle,
- u32 function,
- void *handler_context,
- void **return_context)
+acpi_ec_space_setup(acpi_handle region_handle,
+ u32 function, void *handler_context, void **return_context)
{
/*
* The EC object is in the handler context and is needed
* when calling the acpi_ec_space_handler.
*/
- *return_context = (function != ACPI_REGION_DEACTIVATE) ?
- handler_context : NULL;
+ *return_context = (function != ACPI_REGION_DEACTIVATE) ?
+ handler_context : NULL;
return AE_OK;
}
-
static acpi_status
-acpi_ec_space_handler (
- u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer *value,
- void *handler_context,
- void *region_context)
+acpi_ec_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
{
- int result = 0;
- union acpi_ec *ec = NULL;
- u64 temp = *value;
- acpi_integer f_v = 0;
- int i = 0;
+ int result = 0;
+ union acpi_ec *ec = NULL;
+ u64 temp = *value;
+ acpi_integer f_v = 0;
+ int i = 0;
ACPI_FUNCTION_TRACE("acpi_ec_space_handler");
@@ -915,17 +840,18 @@ acpi_ec_space_handler (
return_VALUE(AE_BAD_PARAMETER);
if (bit_width != 8 && acpi_strict) {
- printk(KERN_WARNING PREFIX "acpi_ec_space_handler: bit_width should be 8\n");
+ printk(KERN_WARNING PREFIX
+ "acpi_ec_space_handler: bit_width should be 8\n");
return_VALUE(AE_BAD_PARAMETER);
}
- ec = (union acpi_ec *) handler_context;
+ ec = (union acpi_ec *)handler_context;
-next_byte:
+ next_byte:
switch (function) {
case ACPI_READ:
temp = 0;
- result = acpi_ec_read(ec, (u8) address, (u32 *)&temp);
+ result = acpi_ec_read(ec, (u8) address, (u32 *) & temp);
break;
case ACPI_WRITE:
result = acpi_ec_write(ec, (u8) address, (u8) temp);
@@ -952,8 +878,7 @@ next_byte:
*value = f_v;
}
-
-out:
+ out:
switch (result) {
case -EINVAL:
return_VALUE(AE_BAD_PARAMETER);
@@ -969,18 +894,15 @@ out:
}
}
-
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
-static struct proc_dir_entry *acpi_ec_dir;
+static struct proc_dir_entry *acpi_ec_dir;
-
-static int
-acpi_ec_read_info (struct seq_file *seq, void *offset)
+static int acpi_ec_read_info(struct seq_file *seq, void *offset)
{
- union acpi_ec *ec = (union acpi_ec *) seq->private;
+ union acpi_ec *ec = (union acpi_ec *)seq->private;
ACPI_FUNCTION_TRACE("acpi_ec_read_info");
@@ -988,14 +910,15 @@ acpi_ec_read_info (struct seq_file *seq, void *offset)
goto end;
seq_printf(seq, "gpe bit: 0x%02x\n",
- (u32) ec->common.gpe_bit);
+ (u32) ec->common.gpe_bit);
seq_printf(seq, "ports: 0x%02x, 0x%02x\n",
- (u32) ec->common.status_addr.address, (u32) ec->common.data_addr.address);
+ (u32) ec->common.status_addr.address,
+ (u32) ec->common.data_addr.address);
seq_printf(seq, "use global lock: %s\n",
- ec->common.global_lock?"yes":"no");
+ ec->common.global_lock ? "yes" : "no");
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
-end:
+ end:
return_VALUE(0);
}
@@ -1005,34 +928,32 @@ static int acpi_ec_info_open_fs(struct inode *inode, struct file *file)
}
static struct file_operations acpi_ec_info_ops = {
- .open = acpi_ec_info_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_ec_info_open_fs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
.owner = THIS_MODULE,
};
-static int
-acpi_ec_add_fs (
- struct acpi_device *device)
+static int acpi_ec_add_fs(struct acpi_device *device)
{
- struct proc_dir_entry *entry = NULL;
+ struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_add_fs");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_ec_dir);
+ acpi_ec_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
}
entry = create_proc_entry(ACPI_EC_FILE_INFO, S_IRUGO,
- acpi_device_dir(device));
+ acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_WARN,
- "Unable to create '%s' fs entry\n",
- ACPI_EC_FILE_INFO));
+ "Unable to create '%s' fs entry\n",
+ ACPI_EC_FILE_INFO));
else {
entry->proc_fops = &acpi_ec_info_ops;
entry->data = acpi_driver_data(device);
@@ -1042,10 +963,7 @@ acpi_ec_add_fs (
return_VALUE(0);
}
-
-static int
-acpi_ec_remove_fs (
- struct acpi_device *device)
+static int acpi_ec_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_ec_remove_fs");
@@ -1058,20 +976,16 @@ acpi_ec_remove_fs (
return_VALUE(0);
}
-
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
-
-static int
-acpi_ec_polling_add (
- struct acpi_device *device)
+static int acpi_ec_polling_add(struct acpi_device *device)
{
- int result = 0;
- acpi_status status = AE_OK;
- union acpi_ec *ec = NULL;
- unsigned long uid;
+ int result = 0;
+ acpi_status status = AE_OK;
+ union acpi_ec *ec = NULL;
+ unsigned long uid;
ACPI_FUNCTION_TRACE("acpi_ec_add");
@@ -1091,26 +1005,31 @@ acpi_ec_polling_add (
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);
+ 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.*/
+ 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);
+ 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);
+ 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"));
+ "Error obtaining GPE bit assignment\n"));
result = -ENODEV;
goto end;
}
@@ -1120,26 +1039,24 @@ acpi_ec_polling_add (
goto end;
printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n",
- acpi_device_name(device), acpi_device_bid(device),
- (u32) ec->common.gpe_bit);
+ acpi_device_name(device), acpi_device_bid(device),
+ (u32) ec->common.gpe_bit);
if (!first_ec)
first_ec = device;
-end:
+ end:
if (result)
kfree(ec);
return_VALUE(result);
}
-static int
-acpi_ec_burst_add (
- struct acpi_device *device)
+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;
+ int result = 0;
+ acpi_status status = AE_OK;
+ union acpi_ec *ec = NULL;
+ unsigned long uid;
ACPI_FUNCTION_TRACE("acpi_ec_add");
@@ -1153,35 +1070,40 @@ acpi_ec_burst_add (
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);
+ 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->common.handle, "_GLK", NULL, &ec->common.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.*/
+ 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_ADR_SPACE_EC,
+ &acpi_ec_space_handler);
- acpi_remove_gpe_handler(NULL, ec_ecdt->common.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->common.handle, "_GPE", NULL, &ec->common.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"));
+ "Error obtaining GPE bit assignment\n"));
result = -ENODEV;
goto end;
}
@@ -1192,26 +1114,22 @@ acpi_ec_burst_add (
printk("burst-mode-ec-10-Aug\n");
printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n",
- acpi_device_name(device), acpi_device_bid(device),
- (u32) ec->common.gpe_bit);
+ acpi_device_name(device), acpi_device_bid(device),
+ (u32) ec->common.gpe_bit);
if (!first_ec)
first_ec = device;
-end:
+ end:
if (result)
kfree(ec);
return_VALUE(result);
}
-
-static int
-acpi_ec_remove (
- struct acpi_device *device,
- int type)
+static int acpi_ec_remove(struct acpi_device *device, int type)
{
- union acpi_ec *ec = NULL;
+ union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_remove");
@@ -1227,13 +1145,10 @@ acpi_ec_remove (
return_VALUE(0);
}
-
static acpi_status
-acpi_ec_io_ports (
- struct acpi_resource *resource,
- void *context)
+acpi_ec_io_ports(struct acpi_resource *resource, void *context)
{
- union acpi_ec *ec = (union acpi_ec *) context;
+ union acpi_ec *ec = (union acpi_ec *)context;
struct acpi_generic_address *addr;
if (resource->id != ACPI_RSTYPE_IO) {
@@ -1261,13 +1176,10 @@ acpi_ec_io_ports (
return AE_OK;
}
-
-static int
-acpi_ec_start (
- struct acpi_device *device)
+static int acpi_ec_start(struct acpi_device *device)
{
- acpi_status status = AE_OK;
- union acpi_ec *ec = NULL;
+ acpi_status status = AE_OK;
+ union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_start");
@@ -1283,49 +1195,50 @@ acpi_ec_start (
* Get I/O port addresses. Convert to GAS format.
*/
status = acpi_walk_resources(ec->common.handle, METHOD_NAME__CRS,
- acpi_ec_io_ports, ec);
- if (ACPI_FAILURE(status) || ec->common.command_addr.register_bit_width == 0) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error getting I/O port addresses"));
+ acpi_ec_io_ports, ec);
+ 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->common.status_addr = ec->common.command_addr;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "gpe=0x%02x, ports=0x%2x,0x%2x\n",
- (u32) ec->common.gpe_bit, (u32) ec->common.command_addr.address,
- (u32) ec->common.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->common.gpe_bit,
- ACPI_GPE_EDGE_TRIGGERED, &acpi_ec_gpe_handler, ec);
+ ACPI_GPE_EDGE_TRIGGERED,
+ &acpi_ec_gpe_handler, ec);
if (ACPI_FAILURE(status)) {
return_VALUE(-ENODEV);
}
- acpi_set_gpe_type (NULL, ec->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME);
- acpi_enable_gpe (NULL, ec->common.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->common.handle,
- ACPI_ADR_SPACE_EC, &acpi_ec_space_handler,
- &acpi_ec_space_setup, ec);
+ 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->common.gpe_bit, &acpi_ec_gpe_handler);
+ acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
+ &acpi_ec_gpe_handler);
return_VALUE(-ENODEV);
}
return_VALUE(AE_OK);
}
-
-static int
-acpi_ec_stop (
- struct acpi_device *device,
- int type)
+static int acpi_ec_stop(struct acpi_device *device, int type)
{
- acpi_status status = AE_OK;
- union acpi_ec *ec = NULL;
+ acpi_status status = AE_OK;
+ union acpi_ec *ec = NULL;
ACPI_FUNCTION_TRACE("acpi_ec_stop");
@@ -1335,11 +1248,14 @@ acpi_ec_stop (
ec = acpi_driver_data(device);
status = acpi_remove_address_space_handler(ec->common.handle,
- ACPI_ADR_SPACE_EC, &acpi_ec_space_handler);
+ ACPI_ADR_SPACE_EC,
+ &acpi_ec_space_handler);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
- status = acpi_remove_gpe_handler(NULL, ec->common.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);
@@ -1347,32 +1263,26 @@ acpi_ec_stop (
}
static acpi_status __init
-acpi_fake_ecdt_callback (
- acpi_handle handle,
- u32 Level,
- void *context,
- void **retval)
+acpi_fake_ecdt_callback(acpi_handle handle,
+ u32 Level, void *context, void **retval)
{
if (acpi_ec_polling_mode)
return acpi_fake_ecdt_polling_callback(handle,
- Level, context, retval);
+ Level, context, retval);
else
return acpi_fake_ecdt_burst_callback(handle,
- Level, context, retval);
+ Level, context, retval);
}
static acpi_status __init
-acpi_fake_ecdt_polling_callback (
- acpi_handle handle,
- u32 Level,
- void *context,
- void **retval)
+acpi_fake_ecdt_polling_callback(acpi_handle handle,
+ u32 Level, void *context, void **retval)
{
- acpi_status status;
+ acpi_status status;
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
- acpi_ec_io_ports, ec_ecdt);
+ acpi_ec_io_ports, ec_ecdt);
if (ACPI_FAILURE(status))
return status;
ec_ecdt->common.status_addr = ec_ecdt->common.command_addr;
@@ -1380,33 +1290,33 @@ acpi_fake_ecdt_polling_callback (
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);
+ 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);
+ 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_fake_ecdt_burst_callback(acpi_handle handle,
+ u32 Level, void *context, void **retval)
{
- acpi_status status;
+ 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);
+ acpi_ec_io_ports, ec_ecdt);
if (ACPI_FAILURE(status))
return status;
ec_ecdt->common.status_addr = ec_ecdt->common.command_addr;
@@ -1414,15 +1324,18 @@ acpi_fake_ecdt_burst_callback (
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);
+ status =
+ acpi_evaluate_integer(handle, "_GPE", NULL,
+ &ec_ecdt->common.gpe_bit);
if (ACPI_FAILURE(status))
return status;
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);
+ 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;
}
@@ -1437,11 +1350,10 @@ acpi_fake_ecdt_burst_callback (
* op region (since _REG isn't invoked yet). The assumption is true for
* all systems found.
*/
-static int __init
-acpi_ec_fake_ecdt(void)
+static int __init acpi_ec_fake_ecdt(void)
{
- acpi_status status;
- int ret = 0;
+ acpi_status status;
+ int ret = 0;
printk(KERN_INFO PREFIX "Try to make an fake ECDT\n");
@@ -1452,10 +1364,8 @@ acpi_ec_fake_ecdt(void)
}
memset(ec_ecdt, 0, sizeof(union acpi_ec));
- status = acpi_get_devices (ACPI_EC_HID,
- acpi_fake_ecdt_callback,
- NULL,
- NULL);
+ status = acpi_get_devices(ACPI_EC_HID,
+ acpi_fake_ecdt_callback, NULL, NULL);
if (ACPI_FAILURE(status)) {
kfree(ec_ecdt);
ec_ecdt = NULL;
@@ -1463,13 +1373,12 @@ acpi_ec_fake_ecdt(void)
goto error;
}
return 0;
-error:
+ error:
printk(KERN_ERR PREFIX "Can't make an fake ECDT\n");
return ret;
}
-static int __init
-acpi_ec_get_real_ecdt(void)
+static int __init acpi_ec_get_real_ecdt(void)
{
if (acpi_ec_polling_mode)
return acpi_ec_polling_get_real_ecdt();
@@ -1477,14 +1386,14 @@ acpi_ec_get_real_ecdt(void)
return acpi_ec_burst_get_real_ecdt();
}
-static int __init
-acpi_ec_polling_get_real_ecdt(void)
+static int __init acpi_ec_polling_get_real_ecdt(void)
{
- acpi_status status;
- struct acpi_table_ecdt *ecdt_ptr;
+ 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);
+ status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING,
+ (struct acpi_table_header **)
+ &ecdt_ptr);
if (ACPI_FAILURE(status))
return -ENODEV;
@@ -1507,13 +1416,14 @@ acpi_ec_polling_get_real_ecdt(void)
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);
+ status =
+ acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->common.handle);
if (ACPI_FAILURE(status)) {
goto error;
}
return 0;
-error:
+ error:
printk(KERN_ERR PREFIX "Could not use ECDT\n");
kfree(ec_ecdt);
ec_ecdt = NULL;
@@ -1521,15 +1431,14 @@ error:
return -ENODEV;
}
-
-static int __init
-acpi_ec_burst_get_real_ecdt(void)
+static int __init acpi_ec_burst_get_real_ecdt(void)
{
- acpi_status status;
- struct acpi_table_ecdt *ecdt_ptr;
+ 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);
+ (struct acpi_table_header **)
+ &ecdt_ptr);
if (ACPI_FAILURE(status))
return -ENODEV;
@@ -1543,8 +1452,8 @@ acpi_ec_burst_get_real_ecdt(void)
return -ENOMEM;
memset(ec_ecdt, 0, sizeof(union acpi_ec));
- init_MUTEX(&ec_ecdt->burst.sem);
- init_waitqueue_head(&ec_ecdt->burst.wait);
+ 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;
@@ -1553,13 +1462,14 @@ acpi_ec_burst_get_real_ecdt(void)
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);
+ status =
+ acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->common.handle);
if (ACPI_FAILURE(status)) {
goto error;
}
return 0;
-error:
+ error:
printk(KERN_ERR PREFIX "Could not use ECDT\n");
kfree(ec_ecdt);
ec_ecdt = NULL;
@@ -1568,11 +1478,10 @@ error:
}
static int __initdata acpi_fake_ecdt_enabled;
-int __init
-acpi_ec_ecdt_probe (void)
+int __init acpi_ec_ecdt_probe(void)
{
- acpi_status status;
- int ret;
+ acpi_status status;
+ int ret;
ret = acpi_ec_get_real_ecdt();
/* Try to make a fake ECDT */
@@ -1587,26 +1496,28 @@ acpi_ec_ecdt_probe (void)
* Install GPE handler
*/
status = acpi_install_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
- ACPI_GPE_EDGE_TRIGGERED, &acpi_ec_gpe_handler,
- ec_ecdt);
+ ACPI_GPE_EDGE_TRIGGERED,
+ &acpi_ec_gpe_handler, ec_ecdt);
if (ACPI_FAILURE(status)) {
goto error;
}
- 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);
+ 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->common.gpe_bit,
- &acpi_ec_gpe_handler);
+ &acpi_ec_gpe_handler);
goto error;
}
return 0;
-error:
+ error:
printk(KERN_ERR PREFIX "Could not use ECDT\n");
kfree(ec_ecdt);
ec_ecdt = NULL;
@@ -1614,10 +1525,9 @@ error:
return -ENODEV;
}
-
-static int __init acpi_ec_init (void)
+static int __init acpi_ec_init(void)
{
- int result = 0;
+ int result = 0;
ACPI_FUNCTION_TRACE("acpi_ec_init");
@@ -1642,8 +1552,7 @@ subsys_initcall(acpi_ec_init);
/* EC driver currently not unloadable */
#if 0
-static void __exit
-acpi_ec_exit (void)
+static void __exit acpi_ec_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_ec_exit");
@@ -1653,7 +1562,7 @@ acpi_ec_exit (void)
return_VOID;
}
-#endif /* 0 */
+#endif /* 0 */
static int __init acpi_fake_ecdt_setup(char *str)
{
@@ -1676,8 +1585,8 @@ 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;
}
- printk(KERN_INFO PREFIX "EC %s mode.\n",
- burst ? "burst": "polling");
+ printk(KERN_INFO PREFIX "EC %s mode.\n", burst ? "burst" : "polling");
return 0;
}
+
__setup("ec_burst=", acpi_ec_set_polling_mode);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 16:08:23 +0000