Add basic support for the light sensor found in some models, like M7A/M7V.
Signed-off-by: Corentin Chary <[EMAIL PROTECTED]>
---
asus_acpi.c | 90
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 90 insertions(+)
--- a/drivers/acpi/asus_acpi.c 2006-12-15 13:14:25.000000000 +0100
+++ b/drivers/acpi/asus_acpi.c 2006-12-15 13:11:00.000000000 +0100
@@ -29,6 +29,7 @@
* John Belmonte - ACPI code for Toshiba laptop was a good starting point.
* Eric Burghard - LED display support for W1N
* Brice Arnould - Some help for parse_method()
+ * Josh Green - Light Sens support
*
*/
@@ -53,6 +54,8 @@
#define PROC_LCD "lcd"
#define PROC_BRN "brn"
#define PROC_DISP "disp"
+#define PROC_LSSW "lssw"
+#define PROC_LSLVL "lslvl"
#define ACPI_HOTK_NAME "Asus Laptop ACPI Extras Driver"
#define ACPI_HOTK_CLASS "hotkey"
@@ -103,6 +106,8 @@
char *brightness_set; //method to set absolute brightness_R
char *brightness_get; //method to get absolute brightness_R
char *brightness_status; //node to get brightness____________A
+ char *light_sens_switch; //light sensor toggle method________R
+ char *light_sens_level; //light sensor level set method_____R
char *display_set; //method to set video output________R
char *display_get; //method to get video output________R
};
@@ -125,6 +130,8 @@
u32 ledd_status; //status of the LED display
struct model_data *methods; //methods available on the laptop
u8 brightness; //brightness level
+ u8 light_level; //light sensor level
+ u8 light_switch; //light sensor switch value
enum {
A1x = 0, //A1340D, A1300F
A2x, //A2500H
@@ -907,6 +914,65 @@
return rv;
}
+static void set_light_sens_switch(int value)
+{
+ if (!write_acpi_int(hotk->handle, hotk->methods->light_sens_switch,
+ value, NULL))
+ printk(KERN_WARNING "Asus ACPI: Error setting light sensor "
+ " switch\n");
+ hotk->light_switch = value;
+}
+
+static int proc_read_lssw(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ return sprintf(page, "%d\n", hotk->light_switch);
+}
+
+static int proc_write_lssw(struct file *file, const char __user *buffer,
+ unsigned long count, void *data)
+{
+ int rv, value;
+
+ rv = parse_arg(buffer, count, &value);
+ if (rv > 0)
+ set_light_sens_switch(value ? 1 : 0);
+
+ return rv;
+}
+
+static void set_light_sens_level(int value)
+{
+ if (!write_acpi_int(hotk->handle, hotk->methods->light_sens_level,
+ value, NULL))
+ printk(KERN_WARNING "Asus ACPI: Error setting light sensor"
+ " level\n");
+ hotk->light_level = value;
+}
+
+static int
+proc_read_lslvl(char *page, char **start, off_t off, int count, int *eof,
+ void *data)
+{
+ return sprintf(page, "%d\n", hotk->light_level);
+}
+
+static int
+proc_write_lslvl(struct file *file, const char __user *buffer,
+ unsigned long count, void *data)
+{
+ int rv, value;
+
+ rv = parse_arg(buffer, count, &value);
+ if (rv > 0) {
+ value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
+ /* 0 <= value <= 15 */
+ set_light_sens_level(value);
+ }
+
+ return rv;
+}
+
typedef int (proc_readfunc) (char *page, char **start, off_t off, int count,
int *eof, void *data);
typedef int (proc_writefunc) (struct file * file, const char __user * buffer,
@@ -1000,6 +1066,16 @@
mode, device);
}
+ if (hotk->methods->light_sens_switch) {
+ asus_proc_add(PROC_LSSW, &proc_write_lssw, &proc_read_lssw,
+ mode, device);
+ }
+
+ if (hotk->methods->light_sens_level) {
+ asus_proc_add(PROC_LSLVL, &proc_write_lslvl, &proc_read_lslvl,
+ mode, device);
+ }
+
return 0;
}
@@ -1026,6 +1102,10 @@
remove_proc_entry(PROC_BRN, acpi_device_dir(device));
if (hotk->methods->display_set)
remove_proc_entry(PROC_DISP, acpi_device_dir(device));
+ if (hotk->methods->light_sens_switch)
+ remove_proc_entry(PROC_LSSW, acpi_device_dir(device));
+ if (hotk->methods->light_sens_level)
+ remove_proc_entry(PROC_LSLVL,
acpi_device_dir(device));
}
return 0;
}
@@ -1305,6 +1385,16 @@
/* LED display is off by default */
hotk->ledd_status = 0xFFF;
+ /* Set initial values of light sensor and level */
+ hotk->light_switch = 1;/* Default to light sensor disabled */
+ hotk->light_level = 0;/* level 5 for sensor sensitivity */
+
+ if (hotk->methods->light_sens_switch)
+ set_light_sens_switch(hotk->light_switch);
+
+ if (hotk->methods->light_sens_level)
+ set_light_sens_level(hotk->light_level);
+
end:
if (result) {
kfree(hotk);
--
CHARY 'Iksaif' Corentin
http://xf.iksaif.net
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