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sniper: Keypad support, with recovery and fastboot key combinations

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Using the twl4030 keypad allows booting directly into some special boot modes,
such as recovery or fastboot. the VOL+ key will trigger a boot to recovery while
the VOL- key will trigger a boot to fastboot.

The G (gesture) key remains unused at this point.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Paul Kocialkowski 2015-07-20 15:17:18 +02:00 committed by Tom Rini
parent 0e14f88957
commit 5c2cff85fc
1 changed files with 16 additions and 0 deletions
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16
board/lge/sniper/sniper.c
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@ -91,18 +91,34 @@ int board_init(void)
int misc_init_r(void)
{
unsigned char keypad_matrix[64] = { 0 };
char serial_string[17] = { 0 };
char reboot_mode[2] = { 0 };
u32 dieid[4] = { 0 };
unsigned char keys[3];
unsigned char data = 0;
/* Power button reset init */
twl4030_power_reset_init();
/* Keypad */
twl4030_keypad_scan((unsigned char *)&keypad_matrix);
keys[0] = twl4030_keypad_key((unsigned char *)&keypad_matrix, 0, 0);
keys[1] = twl4030_keypad_key((unsigned char *)&keypad_matrix, 0, 1);
keys[2] = twl4030_keypad_key((unsigned char *)&keypad_matrix, 0, 2);
/* Reboot mode */
reboot_mode[0] = omap_reboot_mode();
if (keys[0])
reboot_mode[0] = 'r';
else if (keys[1])
reboot_mode[0] = 'b';
if (reboot_mode[0] > 0 && isascii(reboot_mode[0])) {
if (!getenv("reboot-mode"))
setenv("reboot-mode", (char *)reboot_mode);