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Commit 9a816850 authored by Corentin Chary's avatar Corentin Chary Committed by Len Brown
Browse files

asus-laptop: use acpi_evaluate_integer instead of read_acpi_int 



Use acpi_evaluate_integer() instead of read_acpi_int()

Signed-off-by: default avatarCorentin Chary <corentincj@iksaif.net>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent be521466

drivers/misc/asus-laptop.c

+34 −34
Original line number Diff line number Diff line
@@ -245,32 +245,19 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val, 
	return (status == AE_OK);

}



static int read_acpi_int(acpi_handle handle, const char *method, int *val,

			 struct acpi_object_list *params)

{

	struct acpi_buffer output;

	union acpi_object out_obj;

	acpi_status status;



	output.length = sizeof(out_obj);

	output.pointer = &out_obj;



	status = acpi_evaluate_object(handle, (char *)method, params, &output);

	*val = out_obj.integer.value;

	return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER);

}



static int read_wireless_status(int mask)

{

	int status;

	ulong status;

	acpi_status rv = AE_OK;



	if (!wireless_status_handle)

		return (hotk->status & mask) ? 1 : 0;



	if (read_acpi_int(wireless_status_handle, NULL, &status, NULL)) {

		return (status & mask) ? 1 : 0;

	} else

	rv = acpi_evaluate_integer(wireless_status_handle, NULL, NULL, &status);

	if (ACPI_FAILURE(rv))

		printk(ASUS_WARNING "Error reading Wireless status\n");

	else

		return (status & mask) ? 1 : 0;



	return (hotk->status & mask) ? 1 : 0;

}
@@ -354,9 +341,11 @@ static void lcd_blank(int blank) 


static int read_brightness(struct backlight_device *bd)

{

	int value;

	ulong value;

	acpi_status rv = AE_OK;



	if (!read_acpi_int(brightness_get_handle, NULL, &value, NULL))

	rv = acpi_evaluate_integer(brightness_get_handle, NULL, NULL, &value);

	if (ACPI_FAILURE(rv))

		printk(ASUS_WARNING "Error reading brightness\n");



	return value;
@@ -403,8 +392,10 @@ static ssize_t show_infos(struct device *dev, 
			  struct device_attribute *attr, char *page)

{

	int len = 0;

	int temp;

	ulong temp;

	char buf[16];		//enough for all info

	acpi_status rv = AE_OK;



	/*

	 * We use the easy way, we don't care of off and count, so we don't set eof

	 * to 1
@@ -418,9 +409,10 @@ static ssize_t show_infos(struct device *dev, 
	 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.

	 * The significance of others is yet to be found.

	 */

	if (read_acpi_int(hotk->handle, "SFUN", &temp, NULL))

		len +=

		    sprintf(page + len, "SFUN value         : 0x%04x\n", temp);

	rv = acpi_evaluate_integer(hotk->handle, "SFUN", NULL, &temp);

	if (!ACPI_FAILURE(rv))

		len += sprintf(page + len, "SFUN value         : 0x%04x\n",

			       (uint) temp);

	/*

	 * Another value for userspace: the ASYM method returns 0x02 for

	 * battery low and 0x04 for battery critical, its readings tend to be
@@ -428,9 +420,10 @@ static ssize_t show_infos(struct device *dev, 
	 * Note: since not all the laptops provide this method, errors are

	 * silently ignored.

	 */

	if (read_acpi_int(hotk->handle, "ASYM", &temp, NULL))

		len +=

		    sprintf(page + len, "ASYM value         : 0x%04x\n", temp);

	rv = acpi_evaluate_integer(hotk->handle, "ASYM", NULL, &temp);

	if (!ACPI_FAILURE(rv))

		len += sprintf(page + len, "ASYM value         : 0x%04x\n",

			       (uint) temp);

	if (asus_info) {

		snprintf(buf, 16, "%d", asus_info->length);

		len += sprintf(page + len, "DSDT length        : %s\n", buf);
@@ -547,12 +540,15 @@ static void set_display(int value) 


static int read_display(void)

{

	int value = 0;

	ulong value = 0;

	acpi_status rv = AE_OK;



	/* In most of the case, we know how to set the display, but sometime

	   we can't read it */

	if (display_get_handle) {

		if (!read_acpi_int(display_get_handle, NULL, &value, NULL))

		rv = acpi_evaluate_integer(display_get_handle, NULL,

					   NULL, &value);

		if (ACPI_FAILURE(rv))

			printk(ASUS_WARNING "Error reading display status\n");

	}
@@ -771,7 +767,7 @@ static int asus_hotk_get_info(void) 
{

	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };

	union acpi_object *model = NULL;

	int bsts_result, hwrs_result;

	ulong bsts_result, hwrs_result;

	char *string = NULL;

	acpi_status status;
@@ -794,11 +790,13 @@ static int asus_hotk_get_info(void) 
	}



	/* This needs to be called for some laptops to init properly */

	if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result, NULL))

	status =

	    acpi_evaluate_integer(hotk->handle, "BSTS", NULL, &bsts_result);

	if (ACPI_FAILURE(status))

		printk(ASUS_WARNING "Error calling BSTS\n");

	else if (bsts_result)

		printk(ASUS_NOTICE "BSTS called, 0x%02x returned\n",

		       bsts_result);

		       (uint) bsts_result);



	/*

	 * Try to match the object returned by INIT to the specific model.
@@ -840,7 +838,9 @@ static int asus_hotk_get_info(void) 
	 * The significance of others is yet to be found.

	 * If we don't find the method, we assume the device are present.

	 */

	if (!read_acpi_int(hotk->handle, "HRWS", &hwrs_result, NULL))

	status =

	    acpi_evaluate_integer(hotk->handle, "HRWS", NULL, &hwrs_result);

	if (ACPI_FAILURE(status))

		hwrs_result = WL_HWRS | BT_HWRS;



	if (hwrs_result & WL_HWRS)