Commit 02b28a33 authored by Len Brown's avatar Len Brown
Browse files

[ACPI] Embedded Controller (EC) driver syntax update 



"intr" largely replaces "burst" for syntax to follow semantics
"poll" largely replaces "polling" for economy of expression
append "interrupt mode" or "polling mode" to dmesg line

no functional changes

Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 06a2a385

drivers/acpi/ec.c

+117 −116
Original line number Diff line number Diff line
@@ -60,20 +60,20 @@ ACPI_MODULE_NAME("acpi_ec") 
#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

#define EC_POLL			0xFF

#define EC_INTR			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_intr_add(struct acpi_device *device);

static int acpi_ec_poll_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,

		.add = acpi_ec_poll_add,

		.remove = acpi_ec_remove,

		.start = acpi_ec_start,

		.stop = acpi_ec_stop,
@@ -105,7 +105,7 @@ union acpi_ec { 
		atomic_t pending_gpe;

		struct semaphore sem;

		wait_queue_head_t wait;

	} burst;

	} intr;



	struct {

		u32 mode;
@@ -117,37 +117,37 @@ union acpi_ec { 
		struct acpi_generic_address data_addr;

		unsigned long global_lock;

		spinlock_t lock;

	} polling;

	} poll;

};



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_poll_wait(union acpi_ec *ec, u8 event);

static int acpi_ec_intr_wait(union acpi_ec *ec, unsigned int event);

static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data);

static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data);

static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data);

static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data);

static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data);

static int acpi_ec_intr_query(union acpi_ec *ec, u32 * data);

static void acpi_ec_gpe_poll_query(void *ec_cxt);

static void acpi_ec_gpe_intr_query(void *ec_cxt);

static u32 acpi_ec_gpe_poll_handler(void *data);

static u32 acpi_ec_gpe_intr_handler(void *data);

static acpi_status __init

acpi_fake_ecdt_polling_callback(acpi_handle handle,

acpi_fake_ecdt_poll_callback(acpi_handle handle,

				u32 Level, void *context, void **retval);



static acpi_status __init

acpi_fake_ecdt_burst_callback(acpi_handle handle,

acpi_fake_ecdt_intr_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);

static int __init acpi_ec_poll_get_real_ecdt(void);

static int __init acpi_ec_intr_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;



/* External interfaces use first EC only, so remember */

static struct acpi_device *first_ec;

static int acpi_ec_polling_mode = EC_POLLING;

static int acpi_ec_poll_mode = EC_POLL;



/* --------------------------------------------------------------------------

                             Transaction Management
@@ -163,13 +163,13 @@ static inline u32 acpi_ec_read_status(union acpi_ec *ec) 


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_poll_mode)

		return acpi_ec_poll_wait(ec, event);

	else

		return acpi_ec_burst_wait(ec, event);

		return acpi_ec_intr_wait(ec, event);

}



static int acpi_ec_polling_wait(union acpi_ec *ec, u8 event)

static int acpi_ec_poll_wait(union acpi_ec *ec, u8 event)

{

	u32 acpi_ec_status = 0;

	u32 i = ACPI_EC_UDELAY_COUNT;
@@ -203,19 +203,19 @@ static int acpi_ec_polling_wait(union acpi_ec *ec, u8 event) 


	return -ETIME;

}

static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)

static int acpi_ec_intr_wait(union acpi_ec *ec, unsigned int event)

{

	int result = 0;



	ACPI_FUNCTION_TRACE("acpi_ec_wait");



	ec->burst.expect_event = event;

	ec->intr.expect_event = event;

	smp_mb();



	switch (event) {

	case ACPI_EC_EVENT_IBE:

		if (~acpi_ec_read_status(ec) & event) {

			ec->burst.expect_event = 0;

			ec->intr.expect_event = 0;

			return_VALUE(0);

		}

		break;
@@ -223,11 +223,11 @@ static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event) 
		break;

	}



	result = wait_event_timeout(ec->burst.wait,

				    !ec->burst.expect_event,

	result = wait_event_timeout(ec->intr.wait,

				    !ec->intr.expect_event,

				    msecs_to_jiffies(ACPI_EC_DELAY));



	ec->burst.expect_event = 0;

	ec->intr.expect_event = 0;

	smp_mb();



	/*
@@ -250,6 +250,7 @@ static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event) 
	return_VALUE(-ETIME);

}



#ifdef ACPI_FUTURE_USAGE

/*

 * Note: samsung nv5000 doesn't work with ec burst mode.

 * http://bugzilla.kernel.org/show_bug.cgi?id=4980
@@ -275,7 +276,7 @@ int acpi_ec_enter_burst_mode(union acpi_ec *ec) 
		}

	}



	atomic_set(&ec->burst.leaving_burst, 0);

	atomic_set(&ec->intr.leaving_burst, 0);

	return_VALUE(0);

      end:

	printk("Error in acpi_ec_wait\n");
@@ -296,28 +297,29 @@ int acpi_ec_leave_burst_mode(union acpi_ec *ec) 
		acpi_hw_low_level_write(8, ACPI_EC_BURST_DISABLE, &ec->common.command_addr);

		acpi_ec_wait(ec, ACPI_EC_FLAG_IBF);

	} 

	atomic_set(&ec->burst.leaving_burst, 1);

	atomic_set(&ec->intr.leaving_burst, 1);

	return_VALUE(0);

end:

	printk("leave burst_mode:error \n");

	return_VALUE(-1);

}

#endif /* ACPI_FUTURE_USAGE */



static int acpi_ec_read(union acpi_ec *ec, u8 address, u32 * data)

{

	if (acpi_ec_polling_mode)

		return acpi_ec_polling_read(ec, address, data);

	if (acpi_ec_poll_mode)

		return acpi_ec_poll_read(ec, address, data);

	else

		return acpi_ec_burst_read(ec, address, data);

		return acpi_ec_intr_read(ec, address, data);

}

static int acpi_ec_write(union acpi_ec *ec, u8 address, u8 data)

{

	if (acpi_ec_polling_mode)

		return acpi_ec_polling_write(ec, address, data);

	if (acpi_ec_poll_mode)

		return acpi_ec_poll_write(ec, address, data);

	else

		return acpi_ec_burst_write(ec, address, data);

		return acpi_ec_intr_write(ec, address, data);

}

static int acpi_ec_polling_read(union acpi_ec *ec, u8 address, u32 * data)

static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data)

{

	acpi_status status = AE_OK;

	int result = 0;
@@ -337,7 +339,7 @@ static int acpi_ec_polling_read(union acpi_ec *ec, u8 address, u32 * data) 
			return_VALUE(-ENODEV);

	}



	spin_lock_irqsave(&ec->polling.lock, flags);

	spin_lock_irqsave(&ec->poll.lock, flags);



	acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ,

				&ec->common.command_addr);
@@ -356,7 +358,7 @@ static int acpi_ec_polling_read(union acpi_ec *ec, u8 address, u32 * data) 
			  *data, address));



      end:

	spin_unlock_irqrestore(&ec->polling.lock, flags);

	spin_unlock_irqrestore(&ec->poll.lock, flags);



	if (ec->common.global_lock)

		acpi_release_global_lock(glk);
@@ -364,7 +366,7 @@ static int acpi_ec_polling_read(union acpi_ec *ec, u8 address, u32 * data) 
	return_VALUE(result);

}



static int acpi_ec_polling_write(union acpi_ec *ec, u8 address, u8 data)

static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)

{

	int result = 0;

	acpi_status status = AE_OK;
@@ -382,7 +384,7 @@ static int acpi_ec_polling_write(union acpi_ec *ec, u8 address, u8 data) 
			return_VALUE(-ENODEV);

	}



	spin_lock_irqsave(&ec->polling.lock, flags);

	spin_lock_irqsave(&ec->poll.lock, flags);



	acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE,

				&ec->common.command_addr);
@@ -404,7 +406,7 @@ static int acpi_ec_polling_write(union acpi_ec *ec, u8 address, u8 data) 
			  data, address));



      end:

	spin_unlock_irqrestore(&ec->polling.lock, flags);

	spin_unlock_irqrestore(&ec->poll.lock, flags);



	if (ec->common.global_lock)

		acpi_release_global_lock(glk);
@@ -412,7 +414,7 @@ static int acpi_ec_polling_write(union acpi_ec *ec, u8 address, u8 data) 
	return_VALUE(result);

}



static int acpi_ec_burst_read(union acpi_ec *ec, u8 address, u32 * data)

static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data)

{

	int status = 0;

	u32 glk;
@@ -431,7 +433,7 @@ static int acpi_ec_burst_read(union acpi_ec *ec, u8 address, u32 * data) 
	}



	WARN_ON(in_interrupt());

	down(&ec->burst.sem);

	down(&ec->intr.sem);



	status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);

	if (status) {
@@ -456,7 +458,7 @@ static int acpi_ec_burst_read(union acpi_ec *ec, u8 address, u32 * data) 
			  *data, address));



      end:

	up(&ec->burst.sem);

	up(&ec->intr.sem);



	if (ec->common.global_lock)

		acpi_release_global_lock(glk);
@@ -464,7 +466,7 @@ static int acpi_ec_burst_read(union acpi_ec *ec, u8 address, u32 * data) 
	return_VALUE(status);

}



static int acpi_ec_burst_write(union acpi_ec *ec, u8 address, u8 data)

static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data)

{

	int status = 0;

	u32 glk;
@@ -481,7 +483,7 @@ static int acpi_ec_burst_write(union acpi_ec *ec, u8 address, u8 data) 
	}



	WARN_ON(in_interrupt());

	down(&ec->burst.sem);

	down(&ec->intr.sem);



	status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);

	if (status) {
@@ -505,7 +507,7 @@ static int acpi_ec_burst_write(union acpi_ec *ec, u8 address, u8 data) 
	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n",

			  data, address));



	up(&ec->burst.sem);

	up(&ec->intr.sem);



	if (ec->common.global_lock)

		acpi_release_global_lock(glk);
@@ -557,12 +559,12 @@ EXPORT_SYMBOL(ec_write); 


static int acpi_ec_query(union acpi_ec *ec, u32 * data)

{

	if (acpi_ec_polling_mode)

		return acpi_ec_polling_query(ec, data);

	if (acpi_ec_poll_mode)

		return acpi_ec_poll_query(ec, data);

	else

		return acpi_ec_burst_query(ec, data);

		return acpi_ec_intr_query(ec, data);

}

static int acpi_ec_polling_query(union acpi_ec *ec, u32 * data)

static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data)

{

	int result = 0;

	acpi_status status = AE_OK;
@@ -587,7 +589,7 @@ static int acpi_ec_polling_query(union acpi_ec *ec, u32 * data) 
	 * Note that successful completion of the query causes the ACPI_EC_SCI

	 * bit to be cleared (and thus clearing the interrupt source).

	 */

	spin_lock_irqsave(&ec->polling.lock, flags);

	spin_lock_irqsave(&ec->poll.lock, flags);



	acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY,

				&ec->common.command_addr);
@@ -600,14 +602,14 @@ static int acpi_ec_polling_query(union acpi_ec *ec, u32 * data) 
		result = -ENODATA;



      end:

	spin_unlock_irqrestore(&ec->polling.lock, flags);

	spin_unlock_irqrestore(&ec->poll.lock, flags);



	if (ec->common.global_lock)

		acpi_release_global_lock(glk);



	return_VALUE(result);

}

static int acpi_ec_burst_query(union acpi_ec *ec, u32 * data)

static int acpi_ec_intr_query(union acpi_ec *ec, u32 * data)

{

	int status = 0;

	u32 glk;
@@ -624,7 +626,7 @@ static int acpi_ec_burst_query(union acpi_ec *ec, u32 * data) 
			return_VALUE(-ENODEV);

	}



	down(&ec->burst.sem);

	down(&ec->intr.sem);



	status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);

	if (status) {
@@ -649,7 +651,7 @@ static int acpi_ec_burst_query(union acpi_ec *ec, u32 * data) 
		status = -ENODATA;



      end:

	up(&ec->burst.sem);

	up(&ec->intr.sem);



	if (ec->common.global_lock)

		acpi_release_global_lock(glk);
@@ -668,13 +670,13 @@ union acpi_ec_query_data { 


static void acpi_ec_gpe_query(void *ec_cxt)

{

	if (acpi_ec_polling_mode)

		acpi_ec_gpe_polling_query(ec_cxt);

	if (acpi_ec_poll_mode)

		acpi_ec_gpe_poll_query(ec_cxt);

	else

		acpi_ec_gpe_burst_query(ec_cxt);

		acpi_ec_gpe_intr_query(ec_cxt);

}



static void acpi_ec_gpe_polling_query(void *ec_cxt)

static void acpi_ec_gpe_poll_query(void *ec_cxt)

{

	union acpi_ec *ec = (union acpi_ec *)ec_cxt;

	u32 value = 0;
@@ -689,9 +691,9 @@ static void acpi_ec_gpe_polling_query(void *ec_cxt) 
	if (!ec_cxt)

		goto end;



	spin_lock_irqsave(&ec->polling.lock, flags);

	spin_lock_irqsave(&ec->poll.lock, flags);

	acpi_hw_low_level_read(8, &value, &ec->common.command_addr);

	spin_unlock_irqrestore(&ec->polling.lock, flags);

	spin_unlock_irqrestore(&ec->poll.lock, flags);



	/* TBD: Implement asynch events!

	 * NOTE: All we care about are EC-SCI's.  Other EC events are
@@ -715,7 +717,7 @@ static void acpi_ec_gpe_polling_query(void *ec_cxt) 
      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_intr_query(void *ec_cxt)

{

	union acpi_ec *ec = (union acpi_ec *)ec_cxt;

	u32 value;
@@ -740,18 +742,18 @@ static void acpi_ec_gpe_burst_query(void *ec_cxt) 


	acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);

      end:

	atomic_dec(&ec->burst.pending_gpe);

	atomic_dec(&ec->intr.pending_gpe);

	return;

}



static u32 acpi_ec_gpe_handler(void *data)

{

	if (acpi_ec_polling_mode)

		return acpi_ec_gpe_polling_handler(data);

	if (acpi_ec_poll_mode)

		return acpi_ec_gpe_poll_handler(data);

	else

		return acpi_ec_gpe_burst_handler(data);

		return acpi_ec_gpe_intr_handler(data);

}

static u32 acpi_ec_gpe_polling_handler(void *data)

static u32 acpi_ec_gpe_poll_handler(void *data)

{

	acpi_status status = AE_OK;

	union acpi_ec *ec = (union acpi_ec *)data;
@@ -769,7 +771,7 @@ static u32 acpi_ec_gpe_polling_handler(void *data) 
	else

		return ACPI_INTERRUPT_NOT_HANDLED;

}

static u32 acpi_ec_gpe_burst_handler(void *data)

static u32 acpi_ec_gpe_intr_handler(void *data)

{

	acpi_status status = AE_OK;

	u32 value;
@@ -781,22 +783,22 @@ static u32 acpi_ec_gpe_burst_handler(void *data) 
	acpi_clear_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);

	value = acpi_ec_read_status(ec);



	switch (ec->burst.expect_event) {

	switch (ec->intr.expect_event) {

	case ACPI_EC_EVENT_OBF:

		if (!(value & ACPI_EC_FLAG_OBF))

			break;

	case ACPI_EC_EVENT_IBE:

		if ((value & ACPI_EC_FLAG_IBF))

			break;

		ec->burst.expect_event = 0;

		wake_up(&ec->burst.wait);

		ec->intr.expect_event = 0;

		wake_up(&ec->intr.wait);

		return ACPI_INTERRUPT_HANDLED;

	default:

		break;

	}



	if (value & ACPI_EC_FLAG_SCI) {

		atomic_add(1, &ec->burst.pending_gpe);

		atomic_add(1, &ec->intr.pending_gpe);

		status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,

						     acpi_ec_gpe_query, ec);

		return status == AE_OK ?
@@ -984,7 +986,7 @@ static int acpi_ec_remove_fs(struct acpi_device *device) 
                               Driver Interface

   -------------------------------------------------------------------------- */



static int acpi_ec_polling_add(struct acpi_device *device)

static int acpi_ec_poll_add(struct acpi_device *device)

{

	int result = 0;

	acpi_status status = AE_OK;
@@ -1003,7 +1005,7 @@ static int acpi_ec_polling_add(struct acpi_device *device) 


	ec->common.handle = device->handle;

	ec->common.uid = -1;

	spin_lock_init(&ec->polling.lock);

	spin_lock_init(&ec->poll.lock);

	strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);

	strcpy(acpi_device_class(device), ACPI_EC_CLASS);

	acpi_driver_data(device) = ec;
@@ -1042,7 +1044,7 @@ static int acpi_ec_polling_add(struct acpi_device *device) 
	if (result)

		goto end;



	printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n",

	printk(KERN_INFO PREFIX "%s [%s] (gpe %d) polling mode.\n",

	       acpi_device_name(device), acpi_device_bid(device),

	       (u32) ec->common.gpe_bit);
@@ -1055,7 +1057,7 @@ static int acpi_ec_polling_add(struct acpi_device *device) 


	return_VALUE(result);

}

static int acpi_ec_burst_add(struct acpi_device *device)

static int acpi_ec_intr_add(struct acpi_device *device)

{

	int result = 0;

	acpi_status status = AE_OK;
@@ -1074,10 +1076,10 @@ static int acpi_ec_burst_add(struct acpi_device *device) 


	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->intr.pending_gpe, 0);

	atomic_set(&ec->intr.leaving_burst, 1);

	init_MUTEX(&ec->intr.sem);

	init_waitqueue_head(&ec->intr.wait);

	strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);

	strcpy(acpi_device_class(device), ACPI_EC_CLASS);

	acpi_driver_data(device) = ec;
@@ -1116,8 +1118,7 @@ static int acpi_ec_burst_add(struct acpi_device *device) 
	if (result)

		goto end;



	printk("burst-mode-ec-10-Aug\n");

	printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n",

	printk(KERN_INFO PREFIX "%s [%s] (gpe %d) interrupt mode.\n",

	       acpi_device_name(device), acpi_device_bid(device),

	       (u32) ec->common.gpe_bit);
@@ -1271,16 +1272,16 @@ 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,

	if (acpi_ec_poll_mode)

		return acpi_fake_ecdt_poll_callback(handle,

						       Level, context, retval);

	else

		return acpi_fake_ecdt_burst_callback(handle,

		return acpi_fake_ecdt_intr_callback(handle,

						     Level, context, retval);

}



static acpi_status __init

acpi_fake_ecdt_polling_callback(acpi_handle handle,

acpi_fake_ecdt_poll_callback(acpi_handle handle,

				u32 Level, void *context, void **retval)

{

	acpi_status status;
@@ -1299,7 +1300,7 @@ acpi_fake_ecdt_polling_callback(acpi_handle handle, 
				  &ec_ecdt->common.gpe_bit);

	if (ACPI_FAILURE(status))

		return status;

	spin_lock_init(&ec_ecdt->polling.lock);

	spin_lock_init(&ec_ecdt->poll.lock);

	ec_ecdt->common.global_lock = TRUE;

	ec_ecdt->common.handle = handle;
@@ -1312,13 +1313,13 @@ acpi_fake_ecdt_polling_callback(acpi_handle handle, 
}



static acpi_status __init

acpi_fake_ecdt_burst_callback(acpi_handle handle,

acpi_fake_ecdt_intr_callback(acpi_handle handle,

			      u32 Level, void *context, void **retval)

{

	acpi_status status;



	init_MUTEX(&ec_ecdt->burst.sem);

	init_waitqueue_head(&ec_ecdt->burst.wait);

	init_MUTEX(&ec_ecdt->intr.sem);

	init_waitqueue_head(&ec_ecdt->intr.wait);

	status = acpi_walk_resources(handle, METHOD_NAME__CRS,

				     acpi_ec_io_ports, ec_ecdt);

	if (ACPI_FAILURE(status))
@@ -1384,13 +1385,13 @@ static int __init acpi_ec_fake_ecdt(void) 


static int __init acpi_ec_get_real_ecdt(void)

{

	if (acpi_ec_polling_mode)

		return acpi_ec_polling_get_real_ecdt();

	if (acpi_ec_poll_mode)

		return acpi_ec_poll_get_real_ecdt();

	else

		return acpi_ec_burst_get_real_ecdt();

		return acpi_ec_intr_get_real_ecdt();

}



static int __init acpi_ec_polling_get_real_ecdt(void)

static int __init acpi_ec_poll_get_real_ecdt(void)

{

	acpi_status status;

	struct acpi_table_ecdt *ecdt_ptr;
@@ -1415,7 +1416,7 @@ static int __init acpi_ec_polling_get_real_ecdt(void) 
	ec_ecdt->common.status_addr = ecdt_ptr->ec_control;

	ec_ecdt->common.data_addr = ecdt_ptr->ec_data;

	ec_ecdt->common.gpe_bit = ecdt_ptr->gpe_bit;

	spin_lock_init(&ec_ecdt->polling.lock);

	spin_lock_init(&ec_ecdt->poll.lock);

	/* use the GL just to be safe */

	ec_ecdt->common.global_lock = TRUE;

	ec_ecdt->common.uid = ecdt_ptr->uid;
@@ -1435,7 +1436,7 @@ static int __init acpi_ec_polling_get_real_ecdt(void) 
	return -ENODEV;

}



static int __init acpi_ec_burst_get_real_ecdt(void)

static int __init acpi_ec_intr_get_real_ecdt(void)

{

	acpi_status status;

	struct acpi_table_ecdt *ecdt_ptr;
@@ -1456,8 +1457,8 @@ static int __init 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->intr.sem);

	init_waitqueue_head(&ec_ecdt->intr.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;
@@ -1575,22 +1576,22 @@ static int __init acpi_fake_ecdt_setup(char *str) 
}



__setup("acpi_fake_ecdt", acpi_fake_ecdt_setup);

static int __init acpi_ec_set_polling_mode(char *str)

static int __init acpi_ec_set_intr_mode(char *str)

{

	int burst;

	int intr;



	if (!get_option(&str, &burst))

	if (!get_option(&str, &intr))

		return 0;



	if (burst) {

		acpi_ec_polling_mode = EC_BURST;

		acpi_ec_driver.ops.add = acpi_ec_burst_add;

	if (intr) {

		acpi_ec_poll_mode = EC_INTR;

		acpi_ec_driver.ops.add = acpi_ec_intr_add;

	} else {

		acpi_ec_polling_mode = EC_POLLING;

		acpi_ec_driver.ops.add = acpi_ec_polling_add;

		acpi_ec_poll_mode = EC_POLL;

		acpi_ec_driver.ops.add = acpi_ec_poll_add;

	}

	printk(KERN_INFO PREFIX "EC %s mode.\n", burst ? "burst" : "polling");

	printk(KERN_INFO PREFIX "EC %s mode.\n", intr ? "interrupt" : "polling");

	return 0;

}



__setup("ec_burst=", acpi_ec_set_polling_mode);
 
__setup("ec_burst=", acpi_ec_set_intr_mode);

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