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sony-laptop: Group functions and structures to better draw subsytems usage

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Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Mattia Dongili 2007-02-07 20:01:56 +01:00 committed by Len Brown
parent 287ddfd522
commit d78865cdb0
1 changed files with 53 additions and 43 deletions
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92
drivers/misc/sony-laptop.c
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@ -54,16 +54,6 @@ module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
"the development of this driver");
static int sony_backlight_update_status(struct backlight_device *bd);
static int sony_backlight_get_brightness(struct backlight_device *bd);
static struct backlight_device *sony_backlight_device;
static struct backlight_properties sony_backlight_properties = {
.owner = THIS_MODULE,
.update_status = sony_backlight_update_status,
.get_brightness = sony_backlight_get_brightness,
.max_brightness = SONY_MAX_BRIGHTNESS - 1,
};
static ssize_t sony_acpi_show(struct device *, struct device_attribute *, char *);
static ssize_t sony_acpi_store(struct device *, struct device_attribute *, const char *, size_t);
@ -137,6 +127,9 @@ static struct sony_acpi_value sony_acpi_values[] = {
static acpi_handle sony_acpi_handle;
static struct acpi_device *sony_acpi_acpi_device = NULL;
/*
* acpi_evaluate_object wrappers
*/
static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
{
struct acpi_buffer output;
@ -335,25 +328,37 @@ static void sony_snc_pf_remove(void)
platform_driver_unregister(&sncpf_driver);
}
static int sony_acpi_resume(struct acpi_device *device)
/*
* Backlight device
*/
static int sony_backlight_update_status(struct backlight_device *bd)
{
struct sony_acpi_value *item;
for (item = sony_acpi_values; item->name; item++) {
int ret;
if (!item->valid)
continue;
ret = acpi_callsetfunc(sony_acpi_handle, *item->acpiset,
item->value, NULL);
if (ret < 0) {
printk("%s: %d\n", __FUNCTION__, ret);
break;
}
return acpi_callsetfunc(sony_acpi_handle, "SBRT",
bd->props->brightness + 1,
NULL);
}
static int sony_backlight_get_brightness(struct backlight_device *bd)
{
int value;
if (acpi_callgetfunc(sony_acpi_handle, "GBRT", &value))
return 0;
/* brightness levels are 1-based, while backlight ones are 0-based */
return value - 1;
}
static struct backlight_device *sony_backlight_device;
static struct backlight_properties sony_backlight_properties = {
.owner = THIS_MODULE,
.update_status = sony_backlight_update_status,
.get_brightness = sony_backlight_get_brightness,
.max_brightness = SONY_MAX_BRIGHTNESS - 1,
};
/*
* ACPI callbacks
*/
static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
{
if (debug)
@ -376,6 +381,28 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
return AE_OK;
}
/*
* ACPI device
*/
static int sony_acpi_resume(struct acpi_device *device)
{
struct sony_acpi_value *item;
for (item = sony_acpi_values; item->name; item++) {
int ret;
if (!item->valid)
continue;
ret = acpi_callsetfunc(sony_acpi_handle, *item->acpiset,
item->value, NULL);
if (ret < 0) {
printk("%s: %d\n", __FUNCTION__, ret);
break;
}
}
return 0;
}
static int sony_acpi_add(struct acpi_device *device)
{
acpi_status status;
@ -461,23 +488,6 @@ static int sony_acpi_remove(struct acpi_device *device, int type)
return 0;
}
static int sony_backlight_update_status(struct backlight_device *bd)
{
return acpi_callsetfunc(sony_acpi_handle, "SBRT",
bd->props->brightness + 1,
NULL);
}
static int sony_backlight_get_brightness(struct backlight_device *bd)
{
int value;
if (acpi_callgetfunc(sony_acpi_handle, "GBRT", &value))
return 0;
/* brightness levels are 1-based, while backlight ones are 0-based */
return value - 1;
}
static struct acpi_driver sony_acpi_driver = {
.name = ACPI_SNC_DRIVER_NAME,
.class = ACPI_SNC_CLASS,