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stm32/mboot: Add ELEM_TYPE_STATUS element so application can get status. 

This new element takes the form: (ELEM_TYPE_STATUS, 4, <address>).  If this
element is present in the mboot command then mboot will store to the given
address the result of the filesystem firmware update process.  The address
can for example be an RTC backup register.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2021-01-28 15:46:02 +11:00
parent c1eb292927
commit 0efa0b5437
5 changed files with 12 additions and 1 deletions
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1
ports/stm32/boards/stm32f4xx_hal_conf_base.h
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@ -54,6 +54,7 @@
#include "stm32f4xx_hal_usart.h"
#include "stm32f4xx_hal_wwdg.h"
#include "stm32f4xx_ll_adc.h"
#include "stm32f4xx_ll_pwr.h"
#include "stm32f4xx_ll_rtc.h"
// Enable various HAL modules

1
ports/stm32/boards/stm32f7xx_hal_conf_base.h
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@ -54,6 +54,7 @@
#include "stm32f7xx_hal_usart.h"
#include "stm32f7xx_hal_wwdg.h"
#include "stm32f7xx_ll_adc.h"
#include "stm32f7xx_ll_pwr.h"
#include "stm32f7xx_ll_rtc.h"
// Enable various HAL modules

1
ports/stm32/boards/stm32h7xx_hal_conf_base.h
View File

@ -54,6 +54,7 @@
#include "stm32h7xx_hal_usart.h"
#include "stm32h7xx_hal_wwdg.h"
#include "stm32h7xx_ll_adc.h"
#include "stm32h7xx_ll_pwr.h"
#include "stm32h7xx_ll_rtc.h"
// Enable various HAL modules

9
ports/stm32/mboot/main.c
View File

@ -1443,7 +1443,14 @@ enter_bootloader:
// Application passed through elements, validate then process them
const uint8_t *elem_end = elem_search(ELEM_DATA_START, ELEM_TYPE_END);
if (elem_end != NULL && elem_end[-1] == 0) {
fsload_process();
int ret = fsload_process();
// If there is a valid ELEM_TYPE_STATUS element then store the status in the given location.
const uint8_t *elem_status = elem_search(ELEM_DATA_START, ELEM_TYPE_STATUS);
if (elem_status != NULL && elem_status[-1] == 4) {
uint32_t *status_ptr = (uint32_t *)get_le32(&elem_status[0]);
LL_PWR_EnableBkUpAccess(); // In case status_ptr points to backup registers
*status_ptr = ret;
}
}
// Always reset because the application is expecting to resume
led_state_all(0);

1
ports/stm32/mboot/mboot.h
View File

@ -43,6 +43,7 @@ enum {
ELEM_TYPE_END = 1,
ELEM_TYPE_MOUNT,
ELEM_TYPE_FSLOAD,
ELEM_TYPE_STATUS,
};
enum {