scratch/libretiny
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[realtek-ambz] Fix resetting OTA switch when it reaches 0

Browse Source
This commit is contained in:
Kuba Szczodrzyński
2023-01-19 16:53:27 +01:00
parent de0d19cda6
commit 4b25ef7516
1 changed files with 11 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
arduino/realtek-ambz/cores/arduino/LibreTuyaAPI.cpp
View File

@@ -2,6 +2,8 @@
#include <LibreTuyaAPI.h>
#include <Flash.h>
extern "C" {
#include <flash_api.h>
#include <rtl8710b.h>
@@ -155,25 +157,24 @@ bool LibreTuya::otaSwitch(bool force) {
if (!force && otaGetRunning() != otaGetStoredIndex())
// OTA has already been switched
return true;
// this function does:
// - read OTA1 firmware magic from 0xB000
// - read OTA2 address from 0x9000
// - read OTA2 firmware magic from that address
// - read current OTA switch value from 0x9004
// - reset OTA switch to 0xFFFFFFFF if it's 0x0
// - check first non-zero bit of OTA switch
// - reset OTA switch to 0xFFFFFFFE if it's 0x0
// - else check first non-zero bit of OTA switch
// - write OTA switch with first non-zero bit cleared
// sys_clear_ota_signature();
// ok, this function is broken (crashes with HardFault)
if (!otaHasImage1() || !otaHasImage2())
return false;
uint32_t value = HAL_READ32(SPI_FLASH_BASE, FLASH_SYSTEM_OFFSET + 4);
if (value == 0) {
// TODO does this work at all?
FLASH_EreaseDwordsXIP(FLASH_SYSTEM_OFFSET + 4, 1);
uint8_t *system = (uint8_t *)malloc(64);
Flash.readBlock(FLASH_SYSTEM_OFFSET, system, 64);
// reset OTA switch
((uint32_t *)system)[1] = -2;
Flash.eraseSector(FLASH_SYSTEM_OFFSET);
return Flash.writeBlock(FLASH_SYSTEM_OFFSET, system, 64);
}
uint8_t i;
// find first non-zero bit
for (i = 0; i < 32; i++) {