paulbsd/pinephone-keyboard
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firmware: Allow to prevent jump to user fw after powerup by pressing Pine + F + H

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This commit is contained in:
Ondrej Jirman 2021-08-05 03:33:04 +02:00
parent b244ab9c9f
commit c5c155ca68
1 changed files with 15 additions and 5 deletions
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18
firmware/main.c
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@ -1851,6 +1851,8 @@ extern uint8_t _start__stack[];
void main(void) void main(void)
{ {
uint8_t keys[12];
SP = (uint8_t)_start__stack; SP = (uint8_t)_start__stack;
PAGESW = 0; PAGESW = 0;
@ -2036,7 +2038,7 @@ void main(void)
#if CONFIG_STOCK_FW #if CONFIG_STOCK_FW
// after 300ms check if we should jump to user firmware // after 300ms check if we should jump to user firmware
if (!user_app_checked && ticks > 300 / 20) { if (!user_app_checked && ticks > 400 / 20) {
if (app_flag == 1 && REG_SYS(USER_APP_BLOCK) != REG_SYS_USER_APP_BLOCK_MAGIC) if (app_flag == 1 && REG_SYS(USER_APP_BLOCK) != REG_SYS_USER_APP_BLOCK_MAGIC)
jmp_to_user_fw(); jmp_to_user_fw();
@ -2068,7 +2070,6 @@ void main(void)
// if we're in active scanning, scan the keys, and report // if we're in active scanning, scan the keys, and report
// new state // new state
if (scan_active) { if (scan_active) {
uint8_t keys[12];
uint8_t active_rows = keyscan_scan(keys); uint8_t active_rows = keyscan_scan(keys);
// check for changes // check for changes
@ -2094,10 +2095,19 @@ void main(void)
} }
#endif #endif
// pressing FN+PINE+F switches to flashing mode (keys 1:2 3:5 5:2, electrically) // Check for Pine + F + # being held during powerup
if (keys[0] & BIT(2) && keys[2] & BIT(5) && keys[4] & BIT(2)) if ((keys[0] & BIT(2)) && (keys[4] & BIT(2))) {
#if CONFIG_STOCK_FW
// H - stay in main firmware
if (keys[6] & BIT(2))
user_app_checked = 1;
#endif
// B - jump to USB bootloader
if (keys[5] & BIT(3))
jump_to_usb_bootloader = 1; jump_to_usb_bootloader = 1;
} }
}
if (!active_rows) if (!active_rows)
keyscan_idle(); keyscan_idle();