Keyboard backlight control for some Vaio Fit models
SVF1521P6EW, SVF1521DCXW, SVF13N1L2ES and likely most SVF*. do not expose separate timeout controls in auto mode. Signed-off-by: Dominik Matta <dominik@matta.sk> Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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@ -1393,6 +1393,7 @@ static void sony_nc_function_setup(struct acpi_device *device,
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case 0x0143:
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case 0x014b:
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case 0x014c:
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case 0x0153:
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case 0x0163:
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result = sony_nc_kbd_backlight_setup(pf_device, handle);
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if (result)
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@ -1490,6 +1491,7 @@ static void sony_nc_function_cleanup(struct platform_device *pd)
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case 0x0143:
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case 0x014b:
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case 0x014c:
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case 0x0153:
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case 0x0163:
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sony_nc_kbd_backlight_cleanup(pd, handle);
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break;
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@ -1773,6 +1775,7 @@ struct kbd_backlight {
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unsigned int base;
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unsigned int mode;
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unsigned int timeout;
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unsigned int has_timeout;
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struct device_attribute mode_attr;
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struct device_attribute timeout_attr;
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};
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@ -1877,6 +1880,8 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
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unsigned int handle)
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{
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int result;
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int probe_base = 0;
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int ctl_base = 0;
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int ret = 0;
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if (kbdbl_ctl) {
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@ -1885,11 +1890,25 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
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return -EBUSY;
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}
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/* verify the kbd backlight presence, these handles are not used for
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* keyboard backlight only
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/* verify the kbd backlight presence, some of these handles are not used
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* for keyboard backlight only
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*/
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ret = sony_call_snc_handle(handle, handle == 0x0137 ? 0x0B00 : 0x0100,
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&result);
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switch (handle) {
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case 0x0153:
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probe_base = 0x0;
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ctl_base = 0x0;
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break;
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case 0x0137:
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probe_base = 0x0B00;
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ctl_base = 0x0C00;
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break;
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default:
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probe_base = 0x0100;
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ctl_base = 0x4000;
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break;
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}
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ret = sony_call_snc_handle(handle, probe_base, &result);
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if (ret)
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return ret;
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@ -1906,10 +1925,9 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
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kbdbl_ctl->mode = kbd_backlight;
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kbdbl_ctl->timeout = kbd_backlight_timeout;
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kbdbl_ctl->handle = handle;
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if (handle == 0x0137)
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kbdbl_ctl->base = 0x0C00;
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else
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kbdbl_ctl->base = 0x4000;
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kbdbl_ctl->base = ctl_base;
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/* Some models do not allow timeout control */
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kbdbl_ctl->has_timeout = handle != 0x0153;
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sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
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kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
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@ -1917,22 +1935,28 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
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kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
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kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
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sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
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kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
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kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
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kbdbl_ctl->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
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kbdbl_ctl->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
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ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
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if (ret)
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goto outkzalloc;
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ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
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if (ret)
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goto outmode;
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__sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
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__sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
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if (kbdbl_ctl->has_timeout) {
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sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
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kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
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kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
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kbdbl_ctl->timeout_attr.show =
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sony_nc_kbd_backlight_timeout_show;
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kbdbl_ctl->timeout_attr.store =
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sony_nc_kbd_backlight_timeout_store;
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ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
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if (ret)
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goto outmode;
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__sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
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}
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return 0;
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@ -1949,7 +1973,8 @@ static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
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{
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if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
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device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
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device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
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if (kbdbl_ctl->has_timeout)
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device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
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kfree(kbdbl_ctl);
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kbdbl_ctl = NULL;
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}
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