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Basic uniwill rgb keyboard backlight control through tuxedo-cc-wmi

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This commit is contained in:
Christoffer Sandberg 2020-07-24 12:09:28 +02:00 committed by test
parent 84442d0b2f
commit af54fb8d9b
1 changed files with 66 additions and 0 deletions
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66
src/uniwill_keyboard.h
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@ -36,6 +36,27 @@
#define UNIWILL_OSD_TOUCHPADWORKAROUND 0xFFF
union uw_ec_read_return {
u32 dword;
struct {
u8 data_low;
u8 data_high;
} bytes;
};
union uw_ec_write_return {
u32 dword;
struct {
u8 addr_low;
u8 addr_high;
u8 data_low;
u8 data_high;
} bytes;
};
extern u32 uniwill_wmi_ec_read(u8, u8, union uw_ec_read_return *);
extern u32 uniwill_wmi_ec_write(u8, u8, u8, u8, union uw_ec_write_return *);
struct tuxedo_keyboard_driver uniwill_keyboard_driver;
static struct key_entry uniwill_wmi_keymap[] = {
@ -95,6 +116,32 @@ static struct notifier_block keyboard_notifier_block = {
.notifier_call = keyboard_notifier_callb
};
static void write_keyb_rgb(u8 red, u8 green, u8 blue)
{
union uw_ec_read_return reg_read_return;
union uw_ec_write_return reg_write_return;
u32 (*__uniwill_wmi_ec_read)(u8, u8, union uw_ec_read_return *);
u32 (*__uniwill_wmi_ec_write)(u8, u8, u8, u8, union uw_ec_write_return *);
__uniwill_wmi_ec_read = symbol_get(uniwill_wmi_ec_read);
__uniwill_wmi_ec_write = symbol_get(uniwill_wmi_ec_write);
if (__uniwill_wmi_ec_read && __uniwill_wmi_ec_write) {
__uniwill_wmi_ec_read(0x03, 0x18, &reg_read_return);
__uniwill_wmi_ec_write(0x03, 0x18, red, reg_read_return.bytes.data_high, &reg_write_return);
__uniwill_wmi_ec_read(0x05, 0x18, &reg_read_return);
__uniwill_wmi_ec_write(0x05, 0x18, green, reg_read_return.bytes.data_high, &reg_write_return);
__uniwill_wmi_ec_read(0x08, 0x18, &reg_read_return);
__uniwill_wmi_ec_write(0x08, 0x18, blue, reg_read_return.bytes.data_high, &reg_write_return);
} else {
TUXEDO_DEBUG("tuxedo-cc-wmi symbols not found\n");
}
if (__uniwill_wmi_ec_read) symbol_put(uniwill_wmi_ec_read);
if (__uniwill_wmi_ec_write) symbol_put(uniwill_wmi_ec_write);
}
static void uniwill_wmi_handle_event(u32 value, void *context, u32 guid_nr)
{
struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
@ -127,6 +174,25 @@ static void uniwill_wmi_handle_event(u32 value, void *context, u32 guid_nr)
input_report_key(current_driver->input_device, KEY_LEFTMETA, 0);
input_sync(current_driver->input_device);
}
// Keyboard backlight brightness toggle
switch (code) {
case 0x3b:
write_keyb_rgb(0x00, 0x00, 0x00);
break;
case 0x3c:
write_keyb_rgb(0x40, 0x40, 0x40);
break;
case 0x3d:
write_keyb_rgb(0x80, 0x80, 0x80);
break;
case 0x3e:
write_keyb_rgb(0xa0, 0xa0, 0xa0);
break;
case 0x3f:
write_keyb_rgb(0xc8, 0xc8, 0xc8);
break;
}
}
kfree(obj);