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Commit 50526df6 authored by Len Brown's avatar Len Brown
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[ACPI] Lindent drivers/acpi/ec.c 

necessary for clean merge from acpi-2.6.12 to-akpm
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 716e084e
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Showing with 389 additions and 480 deletions
drivers/acpi/ec.c
View file @ 50526df6
...@@ -38,45 +38,35 @@ ...@@ -38,45 +38,35 @@
#include <acpi/actypes.h> #include <acpi/actypes.h>
#define _COMPONENT ACPI_EC_COMPONENT #define _COMPONENT ACPI_EC_COMPONENT
ACPI_MODULE_NAME ("acpi_ec") ACPI_MODULE_NAME("acpi_ec")
#define ACPI_EC_COMPONENT 0x00100000 #define ACPI_EC_COMPONENT 0x00100000
#define ACPI_EC_CLASS "embedded_controller" #define ACPI_EC_CLASS "embedded_controller"
#define ACPI_EC_HID "PNP0C09" #define ACPI_EC_HID "PNP0C09"
#define ACPI_EC_DRIVER_NAME "ACPI Embedded Controller Driver" #define ACPI_EC_DRIVER_NAME "ACPI Embedded Controller Driver"
#define ACPI_EC_DEVICE_NAME "Embedded Controller" #define ACPI_EC_DEVICE_NAME "Embedded Controller"
#define ACPI_EC_FILE_INFO "info" #define ACPI_EC_FILE_INFO "info"
#define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */ #define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */
#define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */ #define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */
#define ACPI_EC_FLAG_BURST 0x10 /* burst mode */ #define ACPI_EC_FLAG_BURST 0x10 /* burst mode */
#define ACPI_EC_FLAG_SCI 0x20 /* EC-SCI occurred */ #define ACPI_EC_FLAG_SCI 0x20 /* EC-SCI occurred */
#define ACPI_EC_EVENT_OBF 0x01 /* Output buffer full */ #define ACPI_EC_EVENT_OBF 0x01 /* Output buffer full */
#define ACPI_EC_EVENT_IBE 0x02 /* Input buffer empty */ #define ACPI_EC_EVENT_IBE 0x02 /* Input buffer empty */
#define ACPI_EC_DELAY 50 /* Wait 50ms max. during EC ops */ #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_GLK 1000 /* Wait 1ms max. to get global lock */
#define ACPI_EC_UDELAY 100 /* Poll @ 100us increments */ #define ACPI_EC_UDELAY 100 /* Poll @ 100us increments */
#define ACPI_EC_UDELAY_COUNT 1000 /* Wait 10ms max. during EC ops */ #define ACPI_EC_UDELAY_COUNT 1000 /* Wait 10ms max. during EC ops */
#define ACPI_EC_COMMAND_READ 0x80 #define ACPI_EC_COMMAND_READ 0x80
#define ACPI_EC_COMMAND_WRITE 0x81 #define ACPI_EC_COMMAND_WRITE 0x81
#define ACPI_EC_BURST_ENABLE 0x82 #define ACPI_EC_BURST_ENABLE 0x82
#define ACPI_EC_BURST_DISABLE 0x83 #define ACPI_EC_BURST_DISABLE 0x83
#define ACPI_EC_COMMAND_QUERY 0x84 #define ACPI_EC_COMMAND_QUERY 0x84
#define EC_POLLING 0xFF #define EC_POLLING 0xFF
#define EC_BURST 0x00 #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_remove (struct acpi_device *device, int type); static int acpi_ec_stop(struct acpi_device *device, int type);
static int acpi_ec_start (struct acpi_device *device); static int acpi_ec_burst_add(struct acpi_device *device);
static int acpi_ec_stop (struct acpi_device *device, int type); static int acpi_ec_polling_add(struct acpi_device *device);
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 = { static struct acpi_driver acpi_ec_driver = {
.name = ACPI_EC_DRIVER_NAME, .name = ACPI_EC_DRIVER_NAME,
...@@ -111,11 +101,11 @@ union acpi_ec { ...@@ -111,11 +101,11 @@ union acpi_ec {
struct acpi_generic_address data_addr; struct acpi_generic_address data_addr;
unsigned long global_lock; unsigned long global_lock;
unsigned int expect_event; unsigned int expect_event;
atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort*/ atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort */
atomic_t pending_gpe; atomic_t pending_gpe;
struct semaphore sem; struct semaphore sem;
wait_queue_head_t wait; wait_queue_head_t wait;
}burst; } burst;
struct { struct {
u32 mode; u32 mode;
...@@ -127,39 +117,31 @@ union acpi_ec { ...@@ -127,39 +117,31 @@ union acpi_ec {
struct acpi_generic_address data_addr; struct acpi_generic_address data_addr;
unsigned long global_lock; unsigned long global_lock;
spinlock_t lock; spinlock_t lock;
}polling; } 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_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_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_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_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_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_polling_query(union acpi_ec *ec, u32 * data);
static int acpi_ec_burst_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_polling_query(void *ec_cxt);
static void acpi_ec_gpe_burst_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_polling_handler(void *data);
static u32 acpi_ec_gpe_burst_handler ( void *data); static u32 acpi_ec_gpe_burst_handler(void *data);
static acpi_status __init static acpi_status __init
acpi_fake_ecdt_polling_callback ( acpi_fake_ecdt_polling_callback(acpi_handle handle,
acpi_handle handle, u32 Level, void *context, void **retval);
u32 Level,
void *context,
void **retval);
static acpi_status __init static acpi_status __init
acpi_fake_ecdt_burst_callback ( acpi_fake_ecdt_burst_callback(acpi_handle handle,
acpi_handle handle, u32 Level, void *context, void **retval);
u32 Level,
void *context, static int __init acpi_ec_polling_get_real_ecdt(void);
void **retval); static int __init acpi_ec_burst_get_real_ecdt(void);
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 */ /* 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;
...@@ -179,21 +161,15 @@ static inline u32 acpi_ec_read_status(union acpi_ec *ec) ...@@ -179,21 +161,15 @@ static inline u32 acpi_ec_read_status(union acpi_ec *ec)
return status; return status;
} }
static int static int acpi_ec_wait(union acpi_ec *ec, u8 event)
acpi_ec_wait (
union acpi_ec *ec,
u8 event)
{ {
if (acpi_ec_polling_mode) if (acpi_ec_polling_mode)
return acpi_ec_polling_wait (ec, event); return acpi_ec_polling_wait(ec, event);
else else
return acpi_ec_burst_wait (ec, event); return acpi_ec_burst_wait(ec, event);
} }
static int static int acpi_ec_polling_wait(union acpi_ec *ec, u8 event)
acpi_ec_polling_wait (
union acpi_ec *ec,
u8 event)
{ {
u32 acpi_ec_status = 0; u32 acpi_ec_status = 0;
u32 i = ACPI_EC_UDELAY_COUNT; u32 i = ACPI_EC_UDELAY_COUNT;
...@@ -205,19 +181,21 @@ acpi_ec_polling_wait ( ...@@ -205,19 +181,21 @@ acpi_ec_polling_wait (
switch (event) { switch (event) {
case ACPI_EC_EVENT_OBF: case ACPI_EC_EVENT_OBF:
do { 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) if (acpi_ec_status & ACPI_EC_FLAG_OBF)
return 0; return 0;
udelay(ACPI_EC_UDELAY); udelay(ACPI_EC_UDELAY);
} while (--i>0); } while (--i > 0);
break; break;
case ACPI_EC_EVENT_IBE: case ACPI_EC_EVENT_IBE:
do { 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)) if (!(acpi_ec_status & ACPI_EC_FLAG_IBF))
return 0; return 0;
udelay(ACPI_EC_UDELAY); udelay(ACPI_EC_UDELAY);
} while (--i>0); } while (--i > 0);
break; break;
default: default:
return -EINVAL; return -EINVAL;
...@@ -277,11 +255,7 @@ static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event) ...@@ -277,11 +255,7 @@ static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)
return_VALUE(-ETIME); 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; u32 tmp = 0;
int status = 0; int status = 0;
...@@ -289,31 +263,29 @@ acpi_ec_enter_burst_mode ( ...@@ -289,31 +263,29 @@ acpi_ec_enter_burst_mode (
ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode"); ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode");
status = acpi_ec_read_status(ec); status = acpi_ec_read_status(ec);
if (status != -EINVAL && if (status != -EINVAL && !(status & ACPI_EC_FLAG_BURST)) {
!(status & ACPI_EC_FLAG_BURST)){
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if(status) if (status)
goto end; 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); status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (status) if (status)
return_VALUE(-EINVAL); return_VALUE(-EINVAL);
acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr); 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); return_VALUE(-EINVAL);
} }
} }
atomic_set(&ec->burst.leaving_burst , 0); atomic_set(&ec->burst.leaving_burst, 0);
return_VALUE(0); return_VALUE(0);
end: end:
printk("Error in acpi_ec_wait\n"); printk("Error in acpi_ec_wait\n");
return_VALUE(-1); return_VALUE(-1);
} }
static int static int acpi_ec_leave_burst_mode(union acpi_ec *ec)
acpi_ec_leave_burst_mode (
union acpi_ec *ec)
{ {
ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode"); ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode");
...@@ -322,33 +294,21 @@ acpi_ec_leave_burst_mode ( ...@@ -322,33 +294,21 @@ acpi_ec_leave_burst_mode (
return_VALUE(0); return_VALUE(0);
} }
static int static int acpi_ec_read(union acpi_ec *ec, u8 address, u32 * data)
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); return acpi_ec_polling_read(ec, address, data);
else else
return acpi_ec_burst_read(ec, address, data); return acpi_ec_burst_read(ec, address, data);
} }
static int static int acpi_ec_write(union acpi_ec *ec, u8 address, u8 data)
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); return acpi_ec_polling_write(ec, address, data);
else else
return acpi_ec_burst_write(ec, address, data); return acpi_ec_burst_write(ec, address, data);
} }
static int static int acpi_ec_polling_read(union acpi_ec *ec, u8 address, u32 * data)
acpi_ec_polling_read (
union acpi_ec *ec,
u8 address,
u32 *data)
{ {
acpi_status status = AE_OK; acpi_status status = AE_OK;
int result = 0; int result = 0;
...@@ -370,7 +330,8 @@ acpi_ec_polling_read ( ...@@ -370,7 +330,8 @@ acpi_ec_polling_read (
spin_lock_irqsave(&ec->polling.lock, flags); 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); result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (result) if (result)
goto end; goto end;
...@@ -385,7 +346,7 @@ acpi_ec_polling_read ( ...@@ -385,7 +346,7 @@ acpi_ec_polling_read (
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n", ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n",
*data, address)); *data, address));
end: end:
spin_unlock_irqrestore(&ec->polling.lock, flags); spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock) if (ec->common.global_lock)
...@@ -394,12 +355,7 @@ acpi_ec_polling_read ( ...@@ -394,12 +355,7 @@ acpi_ec_polling_read (
return_VALUE(result); 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; int result = 0;
acpi_status status = AE_OK; acpi_status status = AE_OK;
...@@ -419,7 +375,8 @@ acpi_ec_polling_write ( ...@@ -419,7 +375,8 @@ acpi_ec_polling_write (
spin_lock_irqsave(&ec->polling.lock, flags); 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); result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (result) if (result)
goto end; goto end;
...@@ -437,7 +394,7 @@ acpi_ec_polling_write ( ...@@ -437,7 +394,7 @@ acpi_ec_polling_write (
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n", 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); spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock) if (ec->common.global_lock)
...@@ -446,11 +403,7 @@ acpi_ec_polling_write ( ...@@ -446,11 +403,7 @@ acpi_ec_polling_write (
return_VALUE(result); return_VALUE(result);
} }
static int static int acpi_ec_burst_read(union acpi_ec *ec, u8 address, u32 * data)
acpi_ec_burst_read (
union acpi_ec *ec,
u8 address,
u32 *data)
{ {
int status = 0; int status = 0;
u32 glk; u32 glk;
...@@ -477,15 +430,16 @@ acpi_ec_burst_read ( ...@@ -477,15 +430,16 @@ acpi_ec_burst_read (
printk("read EC, IB not empty\n"); printk("read EC, IB not empty\n");
goto end; 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); status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (status) { if (status) {
printk("read EC, IB not empty\n"); printk("read EC, IB not empty\n");
} }
acpi_hw_low_level_write(8, address, &ec->common.data_addr); acpi_hw_low_level_write(8, address, &ec->common.data_addr);
status= acpi_ec_wait(ec, ACPI_EC_EVENT_OBF); status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (status){ if (status) {
printk("read EC, OB not full\n"); printk("read EC, OB not full\n");
goto end; goto end;
} }
...@@ -493,7 +447,7 @@ acpi_ec_burst_read ( ...@@ -493,7 +447,7 @@ acpi_ec_burst_read (
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n", ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n",
*data, address)); *data, address));
end: end:
acpi_ec_leave_burst_mode(ec); acpi_ec_leave_burst_mode(ec);
up(&ec->burst.sem); up(&ec->burst.sem);
...@@ -503,12 +457,7 @@ acpi_ec_burst_read ( ...@@ -503,12 +457,7 @@ acpi_ec_burst_read (
return_VALUE(status); 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; int status = 0;
u32 glk; u32 glk;
...@@ -530,18 +479,19 @@ acpi_ec_burst_write ( ...@@ -530,18 +479,19 @@ acpi_ec_burst_write (
acpi_ec_enter_burst_mode(ec); acpi_ec_enter_burst_mode(ec);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if ( status) { if (status) {
printk("write EC, IB not empty\n"); 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); status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (status) { 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); acpi_hw_low_level_write(8, address, &ec->common.data_addr);
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
if (status){ if (status) {
printk("write EC, IB not empty\n"); printk("write EC, IB not empty\n");
} }
...@@ -562,8 +512,7 @@ acpi_ec_burst_write ( ...@@ -562,8 +512,7 @@ acpi_ec_burst_write (
/* /*
* Externally callable EC access functions. For now, assume 1 EC only * Externally callable EC access functions. For now, assume 1 EC only
*/ */
int int ec_read(u8 addr, u8 * val)
ec_read(u8 addr, u8 *val)
{ {
union acpi_ec *ec; union acpi_ec *ec;
int err; int err;
...@@ -579,14 +528,13 @@ ec_read(u8 addr, u8 *val) ...@@ -579,14 +528,13 @@ ec_read(u8 addr, u8 *val)
if (!err) { if (!err) {
*val = temp_data; *val = temp_data;
return 0; return 0;
} } else
else
return err; return err;
} }
EXPORT_SYMBOL(ec_read); EXPORT_SYMBOL(ec_read);
int int ec_write(u8 addr, u8 val)
ec_write(u8 addr, u8 val)
{ {
union acpi_ec *ec; union acpi_ec *ec;
int err; int err;
...@@ -600,22 +548,17 @@ ec_write(u8 addr, u8 val) ...@@ -600,22 +548,17 @@ ec_write(u8 addr, u8 val)
return err; return err;
} }
EXPORT_SYMBOL(ec_write); EXPORT_SYMBOL(ec_write);
static int static int acpi_ec_query(union acpi_ec *ec, u32 * data)
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); return acpi_ec_polling_query(ec, data);
else else
return acpi_ec_burst_query(ec, data); return acpi_ec_burst_query(ec, data);
} }
static int static int acpi_ec_polling_query(union acpi_ec *ec, u32 * data)
acpi_ec_polling_query (
union acpi_ec *ec,
u32 *data)
{ {
int result = 0; int result = 0;
acpi_status status = AE_OK; acpi_status status = AE_OK;
...@@ -642,7 +585,8 @@ acpi_ec_polling_query ( ...@@ -642,7 +585,8 @@ acpi_ec_polling_query (
*/ */
spin_lock_irqsave(&ec->polling.lock, flags); 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); result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (result) if (result)
goto end; goto end;
...@@ -651,7 +595,7 @@ acpi_ec_polling_query ( ...@@ -651,7 +595,7 @@ acpi_ec_polling_query (
if (!*data) if (!*data)
result = -ENODATA; result = -ENODATA;
end: end:
spin_unlock_irqrestore(&ec->polling.lock, flags); spin_unlock_irqrestore(&ec->polling.lock, flags);
if (ec->common.global_lock) if (ec->common.global_lock)
...@@ -659,10 +603,7 @@ acpi_ec_polling_query ( ...@@ -659,10 +603,7 @@ acpi_ec_polling_query (
return_VALUE(result); return_VALUE(result);
} }
static int static int acpi_ec_burst_query(union acpi_ec *ec, u32 * data)
acpi_ec_burst_query (
union acpi_ec *ec,
u32 *data)
{ {
int status = 0; int status = 0;
u32 glk; u32 glk;
...@@ -691,9 +632,10 @@ acpi_ec_burst_query ( ...@@ -691,9 +632,10 @@ acpi_ec_burst_query (
* Note that successful completion of the query causes the ACPI_EC_SCI * Note that successful completion of the query causes the ACPI_EC_SCI
* bit to be cleared (and thus clearing the interrupt source). * 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); status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
if (status){ if (status) {
printk("query EC, OB not full\n"); printk("query EC, OB not full\n");
goto end; goto end;
} }
...@@ -702,7 +644,7 @@ acpi_ec_burst_query ( ...@@ -702,7 +644,7 @@ acpi_ec_burst_query (
if (!*data) if (!*data)
status = -ENODATA; status = -ENODATA;
end: end:
up(&ec->burst.sem); up(&ec->burst.sem);
if (ec->common.global_lock) if (ec->common.global_lock)
...@@ -711,7 +653,6 @@ acpi_ec_burst_query ( ...@@ -711,7 +653,6 @@ acpi_ec_burst_query (
return_VALUE(status); return_VALUE(status);
} }
/* -------------------------------------------------------------------------- /* --------------------------------------------------------------------------
Event Management Event Management
-------------------------------------------------------------------------- */ -------------------------------------------------------------------------- */
...@@ -721,9 +662,7 @@ union acpi_ec_query_data { ...@@ -721,9 +662,7 @@ union acpi_ec_query_data {
u8 data; u8 data;
}; };
static void static void acpi_ec_gpe_query(void *ec_cxt)
acpi_ec_gpe_query (
void *ec_cxt)
{ {
if (acpi_ec_polling_mode) if (acpi_ec_polling_mode)
acpi_ec_gpe_polling_query(ec_cxt); acpi_ec_gpe_polling_query(ec_cxt);
...@@ -731,16 +670,15 @@ acpi_ec_gpe_query ( ...@@ -731,16 +670,15 @@ acpi_ec_gpe_query (
acpi_ec_gpe_burst_query(ec_cxt); acpi_ec_gpe_burst_query(ec_cxt);
} }
static void static void acpi_ec_gpe_polling_query(void *ec_cxt)
acpi_ec_gpe_polling_query (
void *ec_cxt)
{ {
union acpi_ec *ec = (union acpi_ec *) ec_cxt; union acpi_ec *ec = (union acpi_ec *)ec_cxt;
u32 value = 0; u32 value = 0;
unsigned long flags = 0; unsigned long flags = 0;
static char object_name[5] = {'_','Q','0','0','\0'}; static char object_name[5] = { '_', 'Q', '0', '0', '\0' };
const char hex[] = {'0','1','2','3','4','5','6','7', const char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7',
'8','9','A','B','C','D','E','F'}; '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
ACPI_FUNCTION_TRACE("acpi_ec_gpe_query"); ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
...@@ -770,19 +708,18 @@ acpi_ec_gpe_polling_query ( ...@@ -770,19 +708,18 @@ acpi_ec_gpe_polling_query (
acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL); acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);
end: end:
acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR); acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
} }
static void static void acpi_ec_gpe_burst_query(void *ec_cxt)
acpi_ec_gpe_burst_query (
void *ec_cxt)
{ {
union acpi_ec *ec = (union acpi_ec *) ec_cxt; union acpi_ec *ec = (union acpi_ec *)ec_cxt;
u32 value; u32 value;
int result = -ENODATA; int result = -ENODATA;
static char object_name[5] = {'_','Q','0','0','\0'}; static char object_name[5] = { '_', 'Q', '0', '0', '\0' };
const char hex[] = {'0','1','2','3','4','5','6','7', const char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7',
'8','9','A','B','C','D','E','F'}; '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
ACPI_FUNCTION_TRACE("acpi_ec_gpe_query"); ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
...@@ -798,26 +735,22 @@ acpi_ec_gpe_burst_query ( ...@@ -798,26 +735,22 @@ acpi_ec_gpe_burst_query (
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluating %s\n", object_name)); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluating %s\n", object_name));
acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL); acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);
end: end:
atomic_dec(&ec->burst.pending_gpe); atomic_dec(&ec->burst.pending_gpe);
return; return;
} }
static u32 static u32 acpi_ec_gpe_handler(void *data)
acpi_ec_gpe_handler (
void *data)
{ {
if (acpi_ec_polling_mode) if (acpi_ec_polling_mode)
return acpi_ec_gpe_polling_handler(data); return acpi_ec_gpe_polling_handler(data);
else else
return acpi_ec_gpe_burst_handler(data); return acpi_ec_gpe_burst_handler(data);
} }
static u32 static u32 acpi_ec_gpe_polling_handler(void *data)
acpi_ec_gpe_polling_handler (
void *data)
{ {
acpi_status status = AE_OK; acpi_status status = AE_OK;
union acpi_ec *ec = (union acpi_ec *) data; union acpi_ec *ec = (union acpi_ec *)data;
if (!ec) if (!ec)
return ACPI_INTERRUPT_NOT_HANDLED; return ACPI_INTERRUPT_NOT_HANDLED;
...@@ -832,13 +765,11 @@ acpi_ec_gpe_polling_handler ( ...@@ -832,13 +765,11 @@ acpi_ec_gpe_polling_handler (
else else
return ACPI_INTERRUPT_NOT_HANDLED; return ACPI_INTERRUPT_NOT_HANDLED;
} }
static u32 static u32 acpi_ec_gpe_burst_handler(void *data)
acpi_ec_gpe_burst_handler (
void *data)
{ {
acpi_status status = AE_OK; acpi_status status = AE_OK;
u32 value; u32 value;
union acpi_ec *ec = (union acpi_ec *) data; union acpi_ec *ec = (union acpi_ec *)data;
if (!ec) if (!ec)
return ACPI_INTERRUPT_NOT_HANDLED; return ACPI_INTERRUPT_NOT_HANDLED;
...@@ -846,7 +777,7 @@ acpi_ec_gpe_burst_handler ( ...@@ -846,7 +777,7 @@ acpi_ec_gpe_burst_handler (
acpi_clear_gpe(NULL, ec->common.gpe_bit, ACPI_ISR); acpi_clear_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
value = acpi_ec_read_status(ec); value = acpi_ec_read_status(ec);
switch ( ec->burst.expect_event) { switch (ec->burst.expect_event) {
case ACPI_EC_EVENT_OBF: case ACPI_EC_EVENT_OBF:
if (!(value & ACPI_EC_FLAG_OBF)) if (!(value & ACPI_EC_FLAG_OBF))
break; break;
...@@ -860,8 +791,8 @@ acpi_ec_gpe_burst_handler ( ...@@ -860,8 +791,8 @@ acpi_ec_gpe_burst_handler (
break; break;
} }
if (value & ACPI_EC_FLAG_SCI){ if (value & ACPI_EC_FLAG_SCI) {
atomic_add(1, &ec->burst.pending_gpe) ; atomic_add(1, &ec->burst.pending_gpe);
status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE, status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
acpi_ec_gpe_query, ec); acpi_ec_gpe_query, ec);
return status == AE_OK ? return status == AE_OK ?
...@@ -877,11 +808,8 @@ acpi_ec_gpe_burst_handler ( ...@@ -877,11 +808,8 @@ acpi_ec_gpe_burst_handler (
-------------------------------------------------------------------------- */ -------------------------------------------------------------------------- */
static acpi_status static acpi_status
acpi_ec_space_setup ( acpi_ec_space_setup(acpi_handle region_handle,
acpi_handle region_handle, u32 function, void *handler_context, void **return_context)
u32 function,
void *handler_context,
void **return_context)
{ {
/* /*
* The EC object is in the handler context and is needed * The EC object is in the handler context and is needed
...@@ -893,15 +821,12 @@ acpi_ec_space_setup ( ...@@ -893,15 +821,12 @@ acpi_ec_space_setup (
return AE_OK; return AE_OK;
} }
static acpi_status static acpi_status
acpi_ec_space_handler ( acpi_ec_space_handler(u32 function,
u32 function,
acpi_physical_address address, acpi_physical_address address,
u32 bit_width, u32 bit_width,
acpi_integer *value, acpi_integer * value,
void *handler_context, void *handler_context, void *region_context)
void *region_context)
{ {
int result = 0; int result = 0;
union acpi_ec *ec = NULL; union acpi_ec *ec = NULL;
...@@ -915,17 +840,18 @@ acpi_ec_space_handler ( ...@@ -915,17 +840,18 @@ acpi_ec_space_handler (
return_VALUE(AE_BAD_PARAMETER); return_VALUE(AE_BAD_PARAMETER);
if (bit_width != 8 && acpi_strict) { 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); return_VALUE(AE_BAD_PARAMETER);
} }
ec = (union acpi_ec *) handler_context; ec = (union acpi_ec *)handler_context;
next_byte: next_byte:
switch (function) { switch (function) {
case ACPI_READ: case ACPI_READ:
temp = 0; temp = 0;
result = acpi_ec_read(ec, (u8) address, (u32 *)&temp); result = acpi_ec_read(ec, (u8) address, (u32 *) & temp);
break; break;
case ACPI_WRITE: case ACPI_WRITE:
result = acpi_ec_write(ec, (u8) address, (u8) temp); result = acpi_ec_write(ec, (u8) address, (u8) temp);
...@@ -952,8 +878,7 @@ acpi_ec_space_handler ( ...@@ -952,8 +878,7 @@ acpi_ec_space_handler (
*value = f_v; *value = f_v;
} }
out:
out:
switch (result) { switch (result) {
case -EINVAL: case -EINVAL:
return_VALUE(AE_BAD_PARAMETER); return_VALUE(AE_BAD_PARAMETER);
...@@ -969,18 +894,15 @@ acpi_ec_space_handler ( ...@@ -969,18 +894,15 @@ acpi_ec_space_handler (
} }
} }
/* -------------------------------------------------------------------------- /* --------------------------------------------------------------------------
FS Interface (/proc) 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"); ACPI_FUNCTION_TRACE("acpi_ec_read_info");
...@@ -990,12 +912,13 @@ acpi_ec_read_info (struct seq_file *seq, void *offset) ...@@ -990,12 +912,13 @@ acpi_ec_read_info (struct seq_file *seq, void *offset)
seq_printf(seq, "gpe bit: 0x%02x\n", 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", 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", 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); acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
end: end:
return_VALUE(0); return_VALUE(0);
} }
...@@ -1012,9 +935,7 @@ static struct file_operations acpi_ec_info_ops = { ...@@ -1012,9 +935,7 @@ static struct file_operations acpi_ec_info_ops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
}; };
static int static int acpi_ec_add_fs(struct acpi_device *device)
acpi_ec_add_fs (
struct acpi_device *device)
{ {
struct proc_dir_entry *entry = NULL; struct proc_dir_entry *entry = NULL;
...@@ -1042,10 +963,7 @@ acpi_ec_add_fs ( ...@@ -1042,10 +963,7 @@ acpi_ec_add_fs (
return_VALUE(0); 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"); ACPI_FUNCTION_TRACE("acpi_ec_remove_fs");
...@@ -1058,15 +976,11 @@ acpi_ec_remove_fs ( ...@@ -1058,15 +976,11 @@ acpi_ec_remove_fs (
return_VALUE(0); return_VALUE(0);
} }
/* -------------------------------------------------------------------------- /* --------------------------------------------------------------------------
Driver Interface 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; int result = 0;
acpi_status status = AE_OK; acpi_status status = AE_OK;
...@@ -1091,23 +1005,28 @@ acpi_ec_polling_add ( ...@@ -1091,23 +1005,28 @@ acpi_ec_polling_add (
acpi_driver_data(device) = ec; acpi_driver_data(device) = ec;
/* Use the global lock for all EC transactions? */ /* 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, /* 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); acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid);
if (ec_ecdt && ec_ecdt->common.uid == uid) { if (ec_ecdt && ec_ecdt->common.uid == uid) {
acpi_remove_address_space_handler(ACPI_ROOT_OBJECT, 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); kfree(ec_ecdt);
} }
/* Get GPE bit assignment (EC events). */ /* Get GPE bit assignment (EC events). */
/* TODO: Add support for _GPE returning a package */ /* 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)) { if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error obtaining GPE bit assignment\n")); "Error obtaining GPE bit assignment\n"));
...@@ -1126,15 +1045,13 @@ acpi_ec_polling_add ( ...@@ -1126,15 +1045,13 @@ acpi_ec_polling_add (
if (!first_ec) if (!first_ec)
first_ec = device; first_ec = device;
end: end:
if (result) if (result)
kfree(ec); kfree(ec);
return_VALUE(result); return_VALUE(result);
} }
static int static int acpi_ec_burst_add(struct acpi_device *device)
acpi_ec_burst_add (
struct acpi_device *device)
{ {
int result = 0; int result = 0;
acpi_status status = AE_OK; acpi_status status = AE_OK;
...@@ -1154,7 +1071,7 @@ acpi_ec_burst_add ( ...@@ -1154,7 +1071,7 @@ acpi_ec_burst_add (
ec->common.handle = device->handle; ec->common.handle = device->handle;
ec->common.uid = -1; ec->common.uid = -1;
atomic_set(&ec->burst.pending_gpe, 0); atomic_set(&ec->burst.pending_gpe, 0);
atomic_set(&ec->burst.leaving_burst , 1); atomic_set(&ec->burst.leaving_burst, 1);
init_MUTEX(&ec->burst.sem); init_MUTEX(&ec->burst.sem);
init_waitqueue_head(&ec->burst.wait); init_waitqueue_head(&ec->burst.wait);
strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME); strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);
...@@ -1162,23 +1079,28 @@ acpi_ec_burst_add ( ...@@ -1162,23 +1079,28 @@ acpi_ec_burst_add (
acpi_driver_data(device) = ec; acpi_driver_data(device) = ec;
/* Use the global lock for all EC transactions? */ /* 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, /* 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); acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid);
if (ec_ecdt && ec_ecdt->common.uid == uid) { if (ec_ecdt && ec_ecdt->common.uid == uid) {
acpi_remove_address_space_handler(ACPI_ROOT_OBJECT, 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); kfree(ec_ecdt);
} }
/* Get GPE bit assignment (EC events). */ /* Get GPE bit assignment (EC events). */
/* TODO: Add support for _GPE returning a package */ /* 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)) { if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error obtaining GPE bit assignment\n")); "Error obtaining GPE bit assignment\n"));
...@@ -1198,18 +1120,14 @@ acpi_ec_burst_add ( ...@@ -1198,18 +1120,14 @@ acpi_ec_burst_add (
if (!first_ec) if (!first_ec)
first_ec = device; first_ec = device;
end: end:
if (result) if (result)
kfree(ec); kfree(ec);
return_VALUE(result); 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;
...@@ -1227,13 +1145,10 @@ acpi_ec_remove ( ...@@ -1227,13 +1145,10 @@ acpi_ec_remove (
return_VALUE(0); return_VALUE(0);
} }
static acpi_status static acpi_status
acpi_ec_io_ports ( acpi_ec_io_ports(struct acpi_resource *resource, void *context)
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; struct acpi_generic_address *addr;
if (resource->id != ACPI_RSTYPE_IO) { if (resource->id != ACPI_RSTYPE_IO) {
...@@ -1261,10 +1176,7 @@ acpi_ec_io_ports ( ...@@ -1261,10 +1176,7 @@ acpi_ec_io_ports (
return AE_OK; 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; acpi_status status = AE_OK;
union acpi_ec *ec = NULL; union acpi_ec *ec = NULL;
...@@ -1284,45 +1196,46 @@ acpi_ec_start ( ...@@ -1284,45 +1196,46 @@ acpi_ec_start (
*/ */
status = acpi_walk_resources(ec->common.handle, METHOD_NAME__CRS, status = acpi_walk_resources(ec->common.handle, METHOD_NAME__CRS,
acpi_ec_io_ports, ec); acpi_ec_io_ports, ec);
if (ACPI_FAILURE(status) || ec->common.command_addr.register_bit_width == 0) { if (ACPI_FAILURE(status)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error getting I/O port addresses")); || ec->common.command_addr.register_bit_width == 0) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error getting I/O port addresses"));
return_VALUE(-ENODEV); return_VALUE(-ENODEV);
} }
ec->common.status_addr = ec->common.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", 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.gpe_bit,
(u32) ec->common.command_addr.address,
(u32) ec->common.data_addr.address)); (u32) ec->common.data_addr.address));
/* /*
* Install GPE handler * Install GPE handler
*/ */
status = acpi_install_gpe_handler(NULL, ec->common.gpe_bit, 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)) { if (ACPI_FAILURE(status)) {
return_VALUE(-ENODEV); return_VALUE(-ENODEV);
} }
acpi_set_gpe_type (NULL, ec->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME); 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_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
status = acpi_install_address_space_handler (ec->common.handle, status = acpi_install_address_space_handler(ec->common.handle,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler, ACPI_ADR_SPACE_EC,
&acpi_ec_space_handler,
&acpi_ec_space_setup, ec); &acpi_ec_space_setup, ec);
if (ACPI_FAILURE(status)) { 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(-ENODEV);
} }
return_VALUE(AE_OK); 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; acpi_status status = AE_OK;
union acpi_ec *ec = NULL; union acpi_ec *ec = NULL;
...@@ -1335,11 +1248,14 @@ acpi_ec_stop ( ...@@ -1335,11 +1248,14 @@ acpi_ec_stop (
ec = acpi_driver_data(device); ec = acpi_driver_data(device);
status = acpi_remove_address_space_handler(ec->common.handle, 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)) if (ACPI_FAILURE(status))
return_VALUE(-ENODEV); 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)) if (ACPI_FAILURE(status))
return_VALUE(-ENODEV); return_VALUE(-ENODEV);
...@@ -1347,11 +1263,8 @@ acpi_ec_stop ( ...@@ -1347,11 +1263,8 @@ acpi_ec_stop (
} }
static acpi_status __init static acpi_status __init
acpi_fake_ecdt_callback ( acpi_fake_ecdt_callback(acpi_handle handle,
acpi_handle handle, u32 Level, void *context, void **retval)
u32 Level,
void *context,
void **retval)
{ {
if (acpi_ec_polling_mode) if (acpi_ec_polling_mode)
...@@ -1363,11 +1276,8 @@ acpi_fake_ecdt_callback ( ...@@ -1363,11 +1276,8 @@ acpi_fake_ecdt_callback (
} }
static acpi_status __init static acpi_status __init
acpi_fake_ecdt_polling_callback ( acpi_fake_ecdt_polling_callback(acpi_handle handle,
acpi_handle handle, u32 Level, void *context, void **retval)
u32 Level,
void *context,
void **retval)
{ {
acpi_status status; acpi_status status;
...@@ -1380,7 +1290,9 @@ acpi_fake_ecdt_polling_callback ( ...@@ -1380,7 +1290,9 @@ acpi_fake_ecdt_polling_callback (
ec_ecdt->common.uid = -1; ec_ecdt->common.uid = -1;
acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->common.uid); 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)) if (ACPI_FAILURE(status))
return status; return status;
spin_lock_init(&ec_ecdt->polling.lock); spin_lock_init(&ec_ecdt->polling.lock);
...@@ -1388,18 +1300,16 @@ acpi_fake_ecdt_polling_callback ( ...@@ -1388,18 +1300,16 @@ acpi_fake_ecdt_polling_callback (
ec_ecdt->common.handle = handle; ec_ecdt->common.handle = handle;
printk(KERN_INFO PREFIX "GPE=0x%02x, ports=0x%2x, 0x%2x\n", 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.gpe_bit,
(u32) ec_ecdt->common.command_addr.address,
(u32) ec_ecdt->common.data_addr.address); (u32) ec_ecdt->common.data_addr.address);
return AE_CTRL_TERMINATE; return AE_CTRL_TERMINATE;
} }
static acpi_status __init static acpi_status __init
acpi_fake_ecdt_burst_callback ( acpi_fake_ecdt_burst_callback(acpi_handle handle,
acpi_handle handle, u32 Level, void *context, void **retval)
u32 Level,
void *context,
void **retval)
{ {
acpi_status status; acpi_status status;
...@@ -1414,14 +1324,17 @@ acpi_fake_ecdt_burst_callback ( ...@@ -1414,14 +1324,17 @@ acpi_fake_ecdt_burst_callback (
ec_ecdt->common.uid = -1; ec_ecdt->common.uid = -1;
acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->common.uid); 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)) if (ACPI_FAILURE(status))
return status; return status;
ec_ecdt->common.global_lock = TRUE; ec_ecdt->common.global_lock = TRUE;
ec_ecdt->common.handle = handle; ec_ecdt->common.handle = handle;
printk(KERN_INFO PREFIX "GPE=0x%02x, ports=0x%2x, 0x%2x\n", 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.gpe_bit,
(u32) ec_ecdt->common.command_addr.address,
(u32) ec_ecdt->common.data_addr.address); (u32) ec_ecdt->common.data_addr.address);
return AE_CTRL_TERMINATE; return AE_CTRL_TERMINATE;
...@@ -1437,8 +1350,7 @@ acpi_fake_ecdt_burst_callback ( ...@@ -1437,8 +1350,7 @@ acpi_fake_ecdt_burst_callback (
* op region (since _REG isn't invoked yet). The assumption is true for * op region (since _REG isn't invoked yet). The assumption is true for
* all systems found. * all systems found.
*/ */
static int __init static int __init acpi_ec_fake_ecdt(void)
acpi_ec_fake_ecdt(void)
{ {
acpi_status status; acpi_status status;
int ret = 0; int ret = 0;
...@@ -1452,10 +1364,8 @@ acpi_ec_fake_ecdt(void) ...@@ -1452,10 +1364,8 @@ acpi_ec_fake_ecdt(void)
} }
memset(ec_ecdt, 0, sizeof(union acpi_ec)); memset(ec_ecdt, 0, sizeof(union acpi_ec));
status = acpi_get_devices (ACPI_EC_HID, status = acpi_get_devices(ACPI_EC_HID,
acpi_fake_ecdt_callback, acpi_fake_ecdt_callback, NULL, NULL);
NULL,
NULL);
if (ACPI_FAILURE(status)) { if (ACPI_FAILURE(status)) {
kfree(ec_ecdt); kfree(ec_ecdt);
ec_ecdt = NULL; ec_ecdt = NULL;
...@@ -1463,13 +1373,12 @@ acpi_ec_fake_ecdt(void) ...@@ -1463,13 +1373,12 @@ acpi_ec_fake_ecdt(void)
goto error; goto error;
} }
return 0; return 0;
error: error:
printk(KERN_ERR PREFIX "Can't make an fake ECDT\n"); printk(KERN_ERR PREFIX "Can't make an fake ECDT\n");
return ret; return ret;
} }
static int __init static int __init acpi_ec_get_real_ecdt(void)
acpi_ec_get_real_ecdt(void)
{ {
if (acpi_ec_polling_mode) if (acpi_ec_polling_mode)
return acpi_ec_polling_get_real_ecdt(); return acpi_ec_polling_get_real_ecdt();
...@@ -1477,14 +1386,14 @@ acpi_ec_get_real_ecdt(void) ...@@ -1477,14 +1386,14 @@ acpi_ec_get_real_ecdt(void)
return acpi_ec_burst_get_real_ecdt(); return acpi_ec_burst_get_real_ecdt();
} }
static int __init static int __init acpi_ec_polling_get_real_ecdt(void)
acpi_ec_polling_get_real_ecdt(void)
{ {
acpi_status status; acpi_status status;
struct acpi_table_ecdt *ecdt_ptr; struct acpi_table_ecdt *ecdt_ptr;
status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING, 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)) if (ACPI_FAILURE(status))
return -ENODEV; return -ENODEV;
...@@ -1507,13 +1416,14 @@ acpi_ec_polling_get_real_ecdt(void) ...@@ -1507,13 +1416,14 @@ acpi_ec_polling_get_real_ecdt(void)
ec_ecdt->common.global_lock = TRUE; ec_ecdt->common.global_lock = TRUE;
ec_ecdt->common.uid = ecdt_ptr->uid; 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)) { if (ACPI_FAILURE(status)) {
goto error; goto error;
} }
return 0; return 0;
error: error:
printk(KERN_ERR PREFIX "Could not use ECDT\n"); printk(KERN_ERR PREFIX "Could not use ECDT\n");
kfree(ec_ecdt); kfree(ec_ecdt);
ec_ecdt = NULL; ec_ecdt = NULL;
...@@ -1521,15 +1431,14 @@ acpi_ec_polling_get_real_ecdt(void) ...@@ -1521,15 +1431,14 @@ acpi_ec_polling_get_real_ecdt(void)
return -ENODEV; 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; acpi_status status;
struct acpi_table_ecdt *ecdt_ptr; struct acpi_table_ecdt *ecdt_ptr;
status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING, 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)) if (ACPI_FAILURE(status))
return -ENODEV; return -ENODEV;
...@@ -1553,13 +1462,14 @@ acpi_ec_burst_get_real_ecdt(void) ...@@ -1553,13 +1462,14 @@ acpi_ec_burst_get_real_ecdt(void)
ec_ecdt->common.global_lock = TRUE; ec_ecdt->common.global_lock = TRUE;
ec_ecdt->common.uid = ecdt_ptr->uid; 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)) { if (ACPI_FAILURE(status)) {
goto error; goto error;
} }
return 0; return 0;
error: error:
printk(KERN_ERR PREFIX "Could not use ECDT\n"); printk(KERN_ERR PREFIX "Could not use ECDT\n");
kfree(ec_ecdt); kfree(ec_ecdt);
ec_ecdt = NULL; ec_ecdt = NULL;
...@@ -1568,8 +1478,7 @@ acpi_ec_burst_get_real_ecdt(void) ...@@ -1568,8 +1478,7 @@ acpi_ec_burst_get_real_ecdt(void)
} }
static int __initdata acpi_fake_ecdt_enabled; static int __initdata acpi_fake_ecdt_enabled;
int __init int __init acpi_ec_ecdt_probe(void)
acpi_ec_ecdt_probe (void)
{ {
acpi_status status; acpi_status status;
int ret; int ret;
...@@ -1587,17 +1496,19 @@ acpi_ec_ecdt_probe (void) ...@@ -1587,17 +1496,19 @@ acpi_ec_ecdt_probe (void)
* Install GPE handler * Install GPE handler
*/ */
status = acpi_install_gpe_handler(NULL, ec_ecdt->common.gpe_bit, status = acpi_install_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
ACPI_GPE_EDGE_TRIGGERED, &acpi_ec_gpe_handler, ACPI_GPE_EDGE_TRIGGERED,
ec_ecdt); &acpi_ec_gpe_handler, ec_ecdt);
if (ACPI_FAILURE(status)) { if (ACPI_FAILURE(status)) {
goto error; goto error;
} }
acpi_set_gpe_type (NULL, ec_ecdt->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME); 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); acpi_enable_gpe(NULL, ec_ecdt->common.gpe_bit, ACPI_NOT_ISR);
status = acpi_install_address_space_handler (ACPI_ROOT_OBJECT, status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler, ACPI_ADR_SPACE_EC,
&acpi_ec_space_setup, ec_ecdt); &acpi_ec_space_handler,
&acpi_ec_space_setup,
ec_ecdt);
if (ACPI_FAILURE(status)) { if (ACPI_FAILURE(status)) {
acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit, acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
&acpi_ec_gpe_handler); &acpi_ec_gpe_handler);
...@@ -1606,7 +1517,7 @@ acpi_ec_ecdt_probe (void) ...@@ -1606,7 +1517,7 @@ acpi_ec_ecdt_probe (void)
return 0; return 0;
error: error:
printk(KERN_ERR PREFIX "Could not use ECDT\n"); printk(KERN_ERR PREFIX "Could not use ECDT\n");
kfree(ec_ecdt); kfree(ec_ecdt);
ec_ecdt = NULL; ec_ecdt = NULL;
...@@ -1614,8 +1525,7 @@ acpi_ec_ecdt_probe (void) ...@@ -1614,8 +1525,7 @@ acpi_ec_ecdt_probe (void)
return -ENODEV; return -ENODEV;
} }
static int __init acpi_ec_init(void)
static int __init acpi_ec_init (void)
{ {
int result = 0; int result = 0;
...@@ -1642,8 +1552,7 @@ subsys_initcall(acpi_ec_init); ...@@ -1642,8 +1552,7 @@ subsys_initcall(acpi_ec_init);
/* EC driver currently not unloadable */ /* EC driver currently not unloadable */
#if 0 #if 0
static void __exit static void __exit acpi_ec_exit(void)
acpi_ec_exit (void)
{ {
ACPI_FUNCTION_TRACE("acpi_ec_exit"); ACPI_FUNCTION_TRACE("acpi_ec_exit");
...@@ -1676,8 +1585,8 @@ static int __init acpi_ec_set_polling_mode(char *str) ...@@ -1676,8 +1585,8 @@ static int __init acpi_ec_set_polling_mode(char *str)
acpi_ec_polling_mode = EC_POLLING; acpi_ec_polling_mode = EC_POLLING;
acpi_ec_driver.ops.add = acpi_ec_polling_add; acpi_ec_driver.ops.add = acpi_ec_polling_add;
} }
printk(KERN_INFO PREFIX "EC %s mode.\n", printk(KERN_INFO PREFIX "EC %s mode.\n", burst ? "burst" : "polling");
burst ? "burst": "polling");
return 0; return 0;
} }
__setup("ec_burst=", acpi_ec_set_polling_mode); __setup("ec_burst=", acpi_ec_set_polling_mode);
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