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Color and brightness param + scaling of current set color

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This commit is contained in:
Christoffer Sandberg 2020-07-28 13:25:08 +02:00
parent f90c513aad
commit 06492b22ef
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GPG key ID: BF563F71B6C7A96D
2 changed files with 43 additions and 7 deletions
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5
src/tuxedo_keyboard_common.h
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@ -132,4 +132,9 @@ module_param_cb(brightness, &param_ops_brightness_ops, &param_brightness,
S_IRUSR);
MODULE_PARM_DESC(brightness, "Set the Keyboard Brightness");
#define COLOR_STRING_LEN 20
static char param_color[COLOR_STRING_LEN];
module_param_string(color, param_color, COLOR_STRING_LEN, S_IRUSR);
MODULE_PARM_DESC(color, "Preset color for the keyboard backlight as string");
#endif

45
src/uniwill_keyboard.h
View file

@ -36,8 +36,11 @@
#define UNIWILL_OSD_TOUCHPADWORKAROUND 0xFFF
#define UNIWILL_BRIGHTNESS_DEFAULT 0xc8 * 0.75 // Note: values 0x00 - 0xc8
#define UNIWILL_BRIGHTNESS_MIN 0x00
#define UNIWILL_BRIGHTNESS_MAX 0xc8
#define UNIWILL_BRIGHTNESS_DEFAULT UNIWILL_BRIGHTNESS_MAX * 0.75
#define UNIWILL_COLOR_DEFAULT 0xffffff
#define UNIWILL_COLOR_STRING_DEFAULT "white"
union uw_ec_read_return {
u32 dword;
@ -65,9 +68,11 @@ struct tuxedo_keyboard_driver uniwill_keyboard_driver;
struct kbd_led_state_uw_t {
u8 brightness;
u32 color;
} kbd_led_state_cl = {
char color_string[COLOR_STRING_LEN];
} kbd_led_state_uw = {
.brightness = UNIWILL_BRIGHTNESS_DEFAULT,
.color = UNIWILL_COLOR_DEFAULT,
.color_string = "white"
};
static struct key_entry uniwill_wmi_keymap[] = {
@ -153,6 +158,21 @@ static void write_keyb_rgb(u8 red, u8 green, u8 blue)
if (__uniwill_wmi_ec_write) symbol_put(uniwill_wmi_ec_write);
}
static void uniwill_write_kdb_led_state(void) {
// Get single colors from state
u32 color_red = (kbd_led_state_uw.color >> 0x10) && 0xff;
u32 color_green = (kbd_led_state_uw.color >> 0x08) && 0xff;
u32 color_blue = (kbd_led_state_uw.color >> 0x00) && 0xff;
// Scale the respective values
u32 brightness_percentage = (kbd_led_state_uw.brightness * 100) / UNIWILL_BRIGHTNESS_MAX;
color_red = (color_red * brightness_percentage) / 100;
color_green = (color_green * brightness_percentage) / 100;
color_blue = (color_blue * brightness_percentage) / 100;
write_keyb_rgb(color_red, color_green, color_blue);
}
static void uniwill_wmi_handle_event(u32 value, void *context, u32 guid_nr)
{
struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
@ -189,21 +209,23 @@ static void uniwill_wmi_handle_event(u32 value, void *context, u32 guid_nr)
// Keyboard backlight brightness toggle
switch (code) {
case 0x3b:
write_keyb_rgb(0x00, 0x00, 0x00);
kbd_led_state_uw.brightness = 0x00;
break;
case 0x3c:
write_keyb_rgb(0x40, 0x40, 0x40);
kbd_led_state_uw.brightness = 0x10;
break;
case 0x3d:
write_keyb_rgb(0x80, 0x80, 0x80);
kbd_led_state_uw.brightness = 0x30;
break;
case 0x3e:
write_keyb_rgb(0xa0, 0xa0, 0xa0);
kbd_led_state_uw.brightness = 0x80;
break;
case 0x3f:
write_keyb_rgb(0xc8, 0xc8, 0xc8);
kbd_led_state_uw.brightness = 0xc8;
break;
}
uniwill_write_kdb_led_state();
}
kfree(obj);
@ -263,6 +285,15 @@ static int uniwill_keyboard_probe(struct platform_device *dev)
status = register_keyboard_notifier(&keyboard_notifier_block);
// 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) != -1) kbd_led_state_uw.color = color_lookup(&color_list, param_color);
else kbd_led_state_uw.color = UNIWILL_COLOR_DEFAULT;
// Update keyboard according to the current state
uniwill_write_kdb_led_state();
return 0;
err_remove_notifiers: