diff options
author | Ryan <fauxpark@gmail.com> | 2021-12-27 21:10:07 +1100 |
---|---|---|
committer | GitHub <noreply@github.com> | 2021-12-27 21:10:07 +1100 |
commit | 6bc870d899c474bce82457699ec4b753d1538123 (patch) | |
tree | 600b8dda41f4b90f98199d4afd3037374a679a74 /platforms/avr/bootloaders/caterina.c | |
parent | cffe143ca20d938c910b59410dcd3d96dd7d433b (diff) |
Refactor `bootloader_jump()` implementations (#15450)
* Refactor `bootloader_jump()` implementations
* Fix tests?
* Rename `atmel-samba` to `md-boot`
Diffstat (limited to 'platforms/avr/bootloaders/caterina.c')
-rw-r--r-- | platforms/avr/bootloaders/caterina.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/platforms/avr/bootloaders/caterina.c b/platforms/avr/bootloaders/caterina.c new file mode 100644 index 0000000000..1b43ed4e44 --- /dev/null +++ b/platforms/avr/bootloaders/caterina.c @@ -0,0 +1,39 @@ +/* Copyright 2021 QMK + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "bootloader.h" + +#include <avr/wdt.h> + +__attribute__((weak)) +void bootloader_jump(void) { + // this block may be optional + // TODO: figure it out + + uint16_t *const bootKeyPtr = (uint16_t *)0x0800; + + // Value used by Caterina bootloader use to determine whether to run the + // sketch or the bootloader programmer. + uint16_t bootKey = 0x7777; + + *bootKeyPtr = bootKey; + + // setup watchdog timeout + wdt_enable(WDTO_60MS); + + // wait for watchdog timer to trigger + while (1) { } +} |