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Add OTA rollback for Pico boards

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robert committed 2026-06-17 14:53:23 +03:00
1 parent cabab3d6e6
commit 2b2f85781a
5 files changed
+154 -236
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src/arch_picosdk.h
+37
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@@ -19,7 +19,44 @@ int mkdir(const char *, mode_t);
#if MG_OTA == MG_OTA_PICOSDK
#include <hardware/flash.h>
#include <hardware/watchdog.h>
#include <hardware/structs/watchdog.h>
#include <pico/bootrom.h>
#ifndef MG_OTA_WATCHDOG_MS
#if PICO_RP2040
#define MG_OTA_WATCHDOG_MS 8000U // max delay on RP2040 is 8.3 seconds
#else
#define MG_OTA_WATCHDOG_MS 10000U // max delay on RP2350 is 16 seconds
#endif
#endif
#ifndef MG_OTA_ROLLBACK_TIMER_START
#define MG_OTA_ROLLBACK_TIMER_START() watchdog_enable(MG_OTA_WATCHDOG_MS, false)
#endif
#ifndef MG_OTA_ROLLBACK_TIMER_FEED
#define MG_OTA_ROLLBACK_TIMER_FEED() watchdog_update()
#endif
#define MG_OTA_STATE_GET() ((uint32_t) watchdog_hw->scratch[0])
#define MG_OTA_STATE_SET(v) \
(watchdog_hw->scratch[0] = (uint32_t) (v), (uint32_t) watchdog_hw->scratch[0])
#if PICO_RP2040
#define MG_OTA_ROLLBACK() \
do { \
mg_flash->swap_fn(); \
*(volatile unsigned long *) 0xe000ed0c = 0x5fa0004; \
} while (0)
#else
#define MG_OTA_ROLLBACK() \
do { \
mg_flash->swap_fn(); \
((rom_reboot_fn) rom_func_lookup(ROM_FUNC_REBOOT))( \
BOOT_TYPE_NORMAL | 0x100, 1, 0, 0); \
} while (0)
#endif
#endif
#endif