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Fix uw kbd bl enable and set/restore enabled state

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This commit is contained in:
Christoffer Sandberg 2020-08-05 14:55:49 +02:00 committed by test
parent 97c6da3e5b
commit f98573aa21
1 changed files with 22 additions and 6 deletions
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28
src/uniwill_keyboard.h
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@ -87,6 +87,8 @@ static struct key_entry uniwill_wmi_keymap[] = {
{ KE_END, 0 }
};
static u8 uniwill_kbd_bl_enable_state_on_start;
static void key_event_work(struct work_struct *work)
{
sparse_keymap_report_known_event(
@ -132,7 +134,7 @@ static struct notifier_block keyboard_notifier_block = {
.notifier_call = keyboard_notifier_callb
};
static u8 uniwill_read_kbd_bl_enable(void)
static u8 uniwill_read_kbd_bl_enabled(void)
{
union uw_ec_read_return reg_read_return;
@ -143,8 +145,9 @@ static u8 uniwill_read_kbd_bl_enable(void)
__uniwill_wmi_ec_read = symbol_get(uniwill_wmi_ec_read);
if (__uniwill_wmi_ec_read) {
__uniwill_wmi_ec_read(0x07, 0x8c, &reg_read_return);
__uniwill_wmi_ec_read(0x8c, 0x07, &reg_read_return);
enabled = (reg_read_return.bytes.data_low >> 1) & 0x01;
enabled = !enabled;
} else {
TUXEDO_DEBUG("tuxedo-cc-wmi symbols not found\n");
}
@ -169,10 +172,10 @@ static void uniwill_write_kbd_bl_enable(u8 enable)
__uniwill_wmi_ec_write = symbol_get(uniwill_wmi_ec_write);
if (__uniwill_wmi_ec_read && __uniwill_wmi_ec_write) {
__uniwill_wmi_ec_read(0x07, 0x8c, &reg_read_return);
write_value = reg_read_return.bytes.data_low & (0 << 1);
write_value |= (enable << 1);
__uniwill_wmi_ec_write(0x07, 0x8c, write_value, reg_read_return.bytes.data_high, &reg_write_return);
__uniwill_wmi_ec_read(0x8c, 0x07, &reg_read_return);
write_value = reg_read_return.bytes.data_low & ~(1 << 1);
write_value |= (!enable << 1);
__uniwill_wmi_ec_write(0x8c, 0x07, write_value, reg_read_return.bytes.data_high, &reg_write_return);
} else {
TUXEDO_DEBUG("tuxedo-cc-wmi symbols not found\n");
}
@ -352,12 +355,18 @@ static int uniwill_keyboard_probe(struct platform_device *dev)
status = register_keyboard_notifier(&keyboard_notifier_block);
// Save previous enable state
uniwill_kbd_bl_enable_state_on_start = uniwill_read_kbd_bl_enabled();
// Initialize keyboard backlight driver state according to parameters
if (param_brightness > UNIWILL_BRIGHTNESS_MAX) param_brightness = UNIWILL_BRIGHTNESS_DEFAULT;
kbd_led_state_uw.brightness = param_brightness;
if (color_lookup(&color_list, param_color) <= (u32) 0xffffff) kbd_led_state_uw.color = color_lookup(&color_list, param_color);
else kbd_led_state_uw.color = UNIWILL_COLOR_DEFAULT;
// Enable keyboard backlight
uniwill_write_kbd_bl_enable(1);
// Update keyboard according to the current state
uniwill_write_kbd_bl_state();
@ -373,6 +382,11 @@ err_remove_notifiers:
static int uniwill_keyboard_remove(struct platform_device *dev)
{
// Restore previous backlight enable state
if (uniwill_kbd_bl_enable_state_on_start != 0xff) {
uniwill_write_kbd_bl_enable(uniwill_kbd_bl_enable_state_on_start);
}
unregister_keyboard_notifier(&keyboard_notifier_block);
wmi_remove_notify_handler(UNIWILL_WMI_EVENT_GUID_0);
wmi_remove_notify_handler(UNIWILL_WMI_EVENT_GUID_1);
@ -383,11 +397,13 @@ static int uniwill_keyboard_remove(struct platform_device *dev)
static int uniwill_keyboard_suspend(struct platform_device *dev, pm_message_t state)
{
uniwill_write_kbd_bl_enable(0);
return 0;
}
static int uniwill_keyboard_resume(struct platform_device *dev)
{
uniwill_write_kbd_bl_enable(1);
uniwill_write_kbd_bl_state();
return 0;
}