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Store safe mode state in the RTC.

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Also print backtrace before reset when DEBUG. This will help debug
safe mode issues which calls reset.
This commit is contained in:
Scott Shawcroft 2020-12-07 16:39:54 -08:00
parent 054eafd42f
commit 44b56f76c4
No known key found for this signature in database
GPG Key ID: 0DFD512649C052DA
1 changed files with 11 additions and 1 deletions
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12
ports/esp32s2/supervisor/port.c
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@ -54,8 +54,11 @@
#include "peripherals/rmt.h"
#include "peripherals/pcnt.h"
#include "peripherals/timer.h"
#include "components/esp_rom/include/esp_rom_uart.h"
#include "components/heap/include/esp_heap_caps.h"
#include "components/xtensa/include/esp_debug_helpers.h"
#include "components/soc/soc/esp32s2/include/soc/cache_memory.h"
#include "components/soc/soc/esp32s2/include/soc/rtc_cntl_reg.h"
#define HEAP_SIZE (48 * 1024)
@ -78,6 +81,11 @@ safe_mode_t port_init(void) {
args.name = "CircuitPython Tick";
esp_timer_create(&args, &_tick_timer);
#ifdef DEBUG
// Send the ROM output out of the UART. This includes early logs.
esp_rom_install_channel_putc(1, esp_rom_uart_putc);
#endif
heap = NULL;
never_reset_module_internal_pins();
@ -165,6 +173,7 @@ void reset_to_bootloader(void) {
}
void reset_cpu(void) {
esp_backtrace_print(100);
esp_restart();
}
@ -204,10 +213,11 @@ bool port_has_fixed_stack(void) {
// Place the word to save just after our BSS section that gets blanked.
void port_set_saved_word(uint32_t value) {
REG_WRITE(RTC_CNTL_STORE0_REG, value);
}
uint32_t port_get_saved_word(void) {
return 0;
return REG_READ(RTC_CNTL_STORE0_REG);
}
uint64_t port_get_raw_ticks(uint8_t* subticks) {