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HID: lg-g15: Add a lg_g15_handle_lcd_menu_keys() helper function 

Factor out the handling of the G15 LCD menu keys out of
lg_g15_event() into a new lg_g15_handle_lcd_menu_keys() helper function.

This is a preparation patch for adding support for the LCD menu
keys on the Logitech Z-10 speakers (with LCD) which use the same
funky HID report format.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Hans de Goede 2021-04-16 15:13:19 +02:00 committed by Jiri Kosina
parent 042d05b2e3
commit ba3e054e7a
1 changed files with 14 additions and 7 deletions
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21
drivers/hid/hid-lg-g15.c
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@ -464,6 +464,19 @@ static int lg_g15_get_initial_led_brightness(struct lg_g15_data *g15)
/******** Input functions ********/
/* On the G15 Mark I Logitech has been quite creative with which bit is what */
static void lg_g15_handle_lcd_menu_keys(struct lg_g15_data *g15, u8 *data)
{
int i, val;
/* Most left (round/display) button below the LCD */
input_report_key(g15->input, KEY_KBD_LCD_MENU1, data[8] & 0x80);
/* 4 other buttons below the LCD */
for (i = 0; i < 4; i++) {
val = data[i + 2] & 0x80;
input_report_key(g15->input, KEY_KBD_LCD_MENU2 + i, val);
}
}
static int lg_g15_event(struct lg_g15_data *g15, u8 *data)
{
int i, val;
@ -494,13 +507,7 @@ static int lg_g15_event(struct lg_g15_data *g15, u8 *data)
/* MR */
input_report_key(g15->input, KEY_MACRO_RECORD_START, data[7] & 0x40);
/* Most left (round) button below the LCD */
input_report_key(g15->input, KEY_KBD_LCD_MENU1, data[8] & 0x80);
/* 4 other buttons below the LCD */
for (i = 0; i < 4; i++) {
val = data[i + 2] & 0x80;
input_report_key(g15->input, KEY_KBD_LCD_MENU2 + i, val);
}
lg_g15_handle_lcd_menu_keys(g15, data);
/* Backlight cycle button pressed? */
if (data[1] & 0x80)