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esp32: Bootloader wake deep sleep stub

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App can contain a stub program resident in RTC fast memory. Bootloader
will load the stub on initial boot. If the device wakes from deep sleep,
the stub is run immediately (before any other data is loaded, etc.)

To implement a custom wake stub, implement a function in your program:

```
void RTC_IRAM_ATTR esp_wake_deep_sleep(void)
{
  esp_default_wake_deep_sleep();
  // other wake logic
}
```

... and it will replace the default implementation.
This commit is contained in:
Angus Gratton
2016-09-12 17:23:15 +10:00
committed by Wu Jian Gang
parent b77bf9bc90
commit 7c494055e3
12 changed files with 264 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
components/bootloader/src/main/bootloader_config.h
View File

@@ -30,6 +30,10 @@ extern "C"
#define IROM_HIGH 0x40400000
#define DROM_LOW 0x3F400000
#define DROM_HIGH 0x3F800000
#define RTC_IRAM_LOW 0x400C0000
#define RTC_IRAM_HIGH 0x400C2000
#define RTC_DATA_LOW 0x50000000
#define RTC_DATA_HIGH 0x50002000
/*spi mode,saved in third byte in flash */
enum {

26
components/bootloader/src/main/bootloader_start.c
View File

@@ -22,6 +22,7 @@
#include "rom/ets_sys.h"
#include "rom/spi_flash.h"
#include "rom/crc.h"
#include "rom/rtc.h"
#include "soc/soc.h"
#include "soc/cpu.h"
@@ -362,11 +363,15 @@ void unpack_load_app(const partition_pos_t* partition)
uint32_t irom_load_addr = 0;
uint32_t irom_size = 0;
/* Reload the RTC memory sections whenever a non-deepsleep reset
is occuring */
bool load_rtc_memory = rtc_get_reset_reason(0) != DEEPSLEEP_RESET;
ESP_LOGD(TAG, "bin_header: %u %u %u %u %08x", image_header.magic,
image_header.blocks,
image_header.spi_mode,
image_header.spi_size,
(unsigned)image_header.entry_addr);
image_header.blocks,
image_header.spi_mode,
image_header.spi_size,
(unsigned)image_header.entry_addr);
for (uint32_t section_index = 0;
section_index < image_header.blocks;
@@ -406,7 +411,18 @@ void unpack_load_app(const partition_pos_t* partition)
map = true;
}
ESP_LOGI(TAG, "section %d: paddr=0x%08x vaddr=0x%08x size=0x%05x (%6d) %s", section_index, pos, section_header.load_addr, section_header.data_len, section_header.data_len, (load)?"load":(map)?"map":"");
if(!load_rtc_memory && address >= RTC_IRAM_LOW && address < RTC_IRAM_HIGH) {
ESP_LOGD(TAG, "Skipping RTC code section at %08x\n", pos);
load = false;
}
if(!load_rtc_memory && address >= RTC_DATA_LOW && address < RTC_DATA_HIGH) {
ESP_LOGD(TAG, "Skipping RTC data section at %08x\n", pos);
load = false;
}
ESP_LOGI(TAG, "section %d: paddr=0x%08x vaddr=0x%08x size=0x%05x (%6d) %s", section_index, pos,
section_header.load_addr, section_header.data_len, section_header.data_len, (load)?"load":(map)?"map":"");
if (!load) {
pos += section_header.data_len;