Added support for handle 0x0143 (Vaio SA/SB/SC, CA/CB). Minor
corrections included.
Signed-off-by: Marco Chiappero <ma...@absence.it>
---
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -127,7 +127,7 @@ MODULE_PARM_DESC(minor,
"default is -1 (automatic)");
#endif
-static int kbd_backlight; /* = 1 */
+static int kbd_backlight; /* = 0 */
module_param(kbd_backlight, int, 0444);
MODULE_PARM_DESC(kbd_backlight,
"set this to 0 to disable keyboard backlight, "
@@ -140,15 +140,6 @@ MODULE_PARM_DESC(kbd_backlight_timeout,
"1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
"(default: 0)");
-static void sony_nc_kbd_backlight_resume(void);
-
-enum sony_nc_rfkill {
- SONY_WIFI,
- SONY_BLUETOOTH,
- SONY_WWAN,
- SONY_WIMAX,
- N_SONY_RFKILL,
-};
static int sony_rfkill_handle;
static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
@@ -1356,38 +1347,33 @@ static int sony_nc_rfkill_setup(struct a
}
/* Keyboard backlight feature */
-#define KBDBL_HANDLER 0x137
-#define KBDBL_PRESENT 0xB00
-#define SET_MODE 0xC00
-#define SET_STATE 0xD00
-#define SET_TIMEOUT 0xE00
-
struct kbd_backlight {
- int mode;
- int timeout;
+ unsigned int base;
+ unsigned int mode;
+ unsigned int timeout;
struct device_attribute mode_attr;
struct device_attribute timeout_attr;
};
-
static struct kbd_backlight *kbdbl_handle;
+static int sony_kbd_handle = -1;
-static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
+static int __sony_nc_kbd_backlight_mode_set(u8 value)
{
unsigned int result;
if (value > 1)
return -EINVAL;
- if (sony_call_snc_handle(KBDBL_HANDLER,
- (value << 0x10) | SET_MODE, &result))
+ if (sony_call_snc_handle(sony_kbd_handle, (value << 0x10) |
+ (kbdbl_handle->base), &result))
return -EIO;
- /* Try to turn the light on/off immediately */
- sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
- &result);
-
kbdbl_handle->mode = value;
+ /* Try to turn the light on/off immediately */
+ sony_call_snc_handle(sony_kbd_handle, (value << 0x10) |
+ (kbdbl_handle->base + 0x100), &result);
+
return 0;
}
@@ -1415,7 +1401,9 @@ static ssize_t sony_nc_kbd_backlight_mod
struct device_attribute *attr, char *buffer)
{
ssize_t count = 0;
+
count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
+
return count;
}
@@ -1426,8 +1414,8 @@ static int __sony_nc_kbd_backlight_timeo
if (value > 3)
return -EINVAL;
- if (sony_call_snc_handle(KBDBL_HANDLER,
- (value << 0x10) | SET_TIMEOUT, &result))
+ if (sony_call_snc_handle(sony_kbd_handle, (value << 0x10) |
+ (kbdbl_handle->base + 0x200), &result))
return -EIO;
kbdbl_handle->timeout = value;
@@ -1459,18 +1447,36 @@ static ssize_t sony_nc_kbd_backlight_tim
struct device_attribute *attr, char *buffer)
{
ssize_t count = 0;
+
count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
+
return count;
}
static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
{
- unsigned int result;
+ unsigned int result, base_cmd;
+ bool found = false;
- if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
- return 0;
- if (!(result & 0x02))
+ /* verify the kbd backlight presence, some models do not have it */
+ if (sony_kbd_handle == 0x0137) {
+ if (sony_call_snc_handle(sony_kbd_handle, 0x0B00, &result))
+ return -EIO;
+
+ found = !!(result & 0x02);
+ base_cmd = 0x0C00;
+ } else {
+ if (sony_call_snc_handle(sony_kbd_handle, 0x0100, &result))
+ return -EIO;
+
+ found = result & 0x01;
+ base_cmd = 0x4000;
+ }
+
+ if (!found) {
+ dprintk("no backlight keyboard found\n");
return 0;
+ }
kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
if (!kbdbl_handle)
@@ -1494,6 +1500,8 @@ static int sony_nc_kbd_backlight_setup(s
if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
goto outmode;
+ kbdbl_handle->base = base_cmd;
+
__sony_nc_kbd_backlight_mode_set(kbd_backlight);
__sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
@@ -1516,28 +1524,32 @@ static int sony_nc_kbd_backlight_cleanup
device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
/* restore the default hw behaviour */
- sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
- sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);
+ sony_call_snc_handle(sony_kbd_handle,
+ kbdbl_handle->base | 0x10000, &result);
+ sony_call_snc_handle(sony_kbd_handle,
+ kbdbl_handle->base + 0x200, &result);
kfree(kbdbl_handle);
+ kbdbl_handle = NULL;
}
return 0;
}
static void sony_nc_kbd_backlight_resume(void)
{
- unsigned int ignore = 0;
+ unsigned int result;
if (!kbdbl_handle)
return;
if (kbdbl_handle->mode == 0)
- sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);
+ sony_call_snc_handle(sony_kbd_handle,
+ kbdbl_handle->base, &result);
if (kbdbl_handle->timeout != 0)
- sony_call_snc_handle(KBDBL_HANDLER,
- (kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
- &ignore);
+ sony_call_snc_handle(sony_kbd_handle,
+ (kbdbl_handle->base + 0x200) |
+ (kbdbl_handle->timeout << 0x10), &result);
}
static void sony_nc_backlight_ng_read_limits(int handle,
@@ -1676,6 +1688,8 @@ static void sony_nc_snc_setup_handles(st
ret = sony_nc_function_setup(handle);
break;
case 0x0137:
+ case 0x0143:
+ sony_kbd_handle = handle;
ret = sony_nc_kbd_backlight_setup(pd);
break;
case 0x0124:
@@ -1710,6 +1724,7 @@ static void sony_nc_snc_cleanup_handles(
switch (handle) {
case 0x0137:
+ case 0x0143:
sony_nc_kbd_backlight_cleanup(pd);
break;
case 0x0124:
@@ -1814,6 +1829,7 @@ static int sony_nc_snc_resume(void)
sony_nc_rfkill_update();
break;
case 0x0137: /* kbd + als */
+ case 0x0143:
sony_nc_kbd_backlight_resume();
break;
default:
--
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