471 lines
15 KiB
C
471 lines
15 KiB
C
/* Copyright (c) 2013 Nordic Semiconductor. All Rights Reserved.
|
|
*
|
|
* The information contained herein is property of Nordic Semiconductor ASA.
|
|
* Terms and conditions of usage are described in detail in NORDIC
|
|
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
|
|
*
|
|
* Licensees are granted free, non-transferable use of the information. NO
|
|
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
|
|
* the file.
|
|
*
|
|
*/
|
|
|
|
#include "sdk_common.h"
|
|
#include "bootloader.h"
|
|
#include "bootloader_types.h"
|
|
#include "bootloader_util.h"
|
|
#include "bootloader_settings.h"
|
|
#include "dfu.h"
|
|
#include "dfu_transport.h"
|
|
#include "nrf.h"
|
|
#include "app_error.h"
|
|
#include "nrf_sdm.h"
|
|
#include "nrf_mbr.h"
|
|
#include "nordic_common.h"
|
|
#include "crc16.h"
|
|
#include "pstorage.h"
|
|
#include "app_scheduler.h"
|
|
|
|
#include "nrfx.h"
|
|
#include "nrf_wdt.h"
|
|
#include "app_timer.h"
|
|
|
|
#include "boards.h"
|
|
|
|
#ifdef NRF52840_XXAA
|
|
#include "tusb.h"
|
|
#endif
|
|
|
|
#define APP_TIMER_PRESCALER 0
|
|
|
|
#define IRQ_ENABLED 0x01 /**< Field identifying if an interrupt is enabled. */
|
|
|
|
/**< Maximum number of interrupts available. */
|
|
#if defined(NRF52832_XXAA)
|
|
#define MAX_NUMBER_INTERRUPTS 39
|
|
#elif defined(NRF52840_XXAA)
|
|
#define MAX_NUMBER_INTERRUPTS 48
|
|
#endif
|
|
|
|
/**@brief Enumeration for specifying current bootloader status.
|
|
*/
|
|
typedef enum
|
|
{
|
|
BOOTLOADER_UPDATING, /**< Bootloader status for indicating that an update is in progress. */
|
|
BOOTLOADER_SETTINGS_SAVING, /**< Bootloader status for indicating that saving of bootloader settings is in progress. */
|
|
BOOTLOADER_COMPLETE, /**< Bootloader status for indicating that all operations for the update procedure has completed and it is safe to reset the system. */
|
|
BOOTLOADER_TIMEOUT, /**< Bootloader status field for indicating that a timeout has occured and current update process should be aborted. */
|
|
BOOTLOADER_RESET, /**< Bootloader status field for indicating that a reset has been requested and current update process should be aborted. */
|
|
} bootloader_status_t;
|
|
|
|
static pstorage_handle_t m_bootsettings_handle; /**< Pstorage handle to use for registration and identifying the bootloader module on subsequent calls to the pstorage module for load and store of bootloader setting in flash. */
|
|
static bootloader_status_t m_update_status; /**< Current update status for the bootloader module to ensure correct behaviour when updating settings and when update completes. */
|
|
|
|
APP_TIMER_DEF( _dfu_startup_timer );
|
|
volatile bool dfu_startup_packet_received = false;
|
|
|
|
/**@brief Function for handling callbacks from pstorage module.
|
|
*
|
|
* @details Handles pstorage results for clear and storage operation. For detailed description of
|
|
* the parameters provided with the callback, please refer to \ref pstorage_ntf_cb_t.
|
|
*/
|
|
static void pstorage_callback_handler(pstorage_handle_t * p_handle,
|
|
uint8_t op_code,
|
|
uint32_t result,
|
|
uint8_t * p_data,
|
|
uint32_t data_len)
|
|
{
|
|
// If we are in BOOTLOADER_SETTINGS_SAVING state and we receive an PSTORAGE_STORE_OP_CODE
|
|
// response then settings has been saved and update has completed.
|
|
if ((m_update_status == BOOTLOADER_SETTINGS_SAVING) && (op_code == PSTORAGE_STORE_OP_CODE))
|
|
{
|
|
m_update_status = BOOTLOADER_COMPLETE;
|
|
}
|
|
|
|
APP_ERROR_CHECK(result);
|
|
}
|
|
|
|
/* Terminate the forced DFU mode on startup if no packets is received
|
|
* by put an terminal handler to scheduler
|
|
*/
|
|
static void dfu_startup_timer_handler(void * p_context)
|
|
{
|
|
// No packets are received within timeout, terminal and DFU mode
|
|
// dfu_startup_packet_received is set by process_dfu_packet() in dfu_transport_serial.c
|
|
if (!dfu_startup_packet_received)
|
|
{
|
|
dfu_update_status_t update_status;
|
|
update_status.status_code = DFU_TIMEOUT;
|
|
|
|
bootloader_dfu_update_process(update_status);
|
|
}
|
|
}
|
|
|
|
/**@brief Function for waiting for events.
|
|
*
|
|
* @details This function will place the chip in low power mode while waiting for events from
|
|
* the SoftDevice or other peripherals. When interrupted by an event, it will call the
|
|
* @ref app_sched_execute function to process the received event. This function will return
|
|
* when the final state of the firmware update is reached OR when a tear down is in
|
|
* progress.
|
|
*/
|
|
static void wait_for_events(void)
|
|
{
|
|
for ( ;; )
|
|
{
|
|
// Wait in low power state for any events.
|
|
// uint32_t err_code = sd_app_evt_wait();
|
|
// APP_ERROR_CHECK(err_code);
|
|
|
|
// Feed all Watchdog just in case application enable it
|
|
// WDT cannot be disabled once started. It even last through soft reset (NVIC Reset)
|
|
if ( nrf_wdt_started() )
|
|
{
|
|
for (uint8_t i=0; i<8; i++) nrf_wdt_reload_request_set(i);
|
|
}
|
|
|
|
// Event received. Process it from the scheduler.
|
|
app_sched_execute();
|
|
|
|
#ifdef NRF52840_XXAA
|
|
// usb is not enabled in OTA
|
|
if ( !is_ota() )
|
|
{
|
|
tusb_task();
|
|
tud_cdc_write_flush();
|
|
}
|
|
#endif
|
|
|
|
if ((m_update_status == BOOTLOADER_COMPLETE) ||
|
|
(m_update_status == BOOTLOADER_TIMEOUT) ||
|
|
(m_update_status == BOOTLOADER_RESET) )
|
|
{
|
|
// When update has completed or a timeout/reset occured we will return.
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool bootloader_app_is_valid(uint32_t app_addr)
|
|
{
|
|
bootloader_settings_t const * p_bootloader_settings;
|
|
|
|
// There exists an application in CODE region 1.
|
|
if (*((uint32_t *)app_addr) == EMPTY_FLASH_MASK)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool success = false;
|
|
|
|
bootloader_util_settings_get(&p_bootloader_settings);
|
|
|
|
// The application in CODE region 1 is flagged as valid during update.
|
|
if (p_bootloader_settings->bank_0 == BANK_VALID_APP)
|
|
{
|
|
uint16_t image_crc = 0;
|
|
|
|
// A stored crc value of 0 indicates that CRC checking is not used.
|
|
if (p_bootloader_settings->bank_0_crc != 0)
|
|
{
|
|
image_crc = crc16_compute((uint8_t *)DFU_BANK_0_REGION_START,
|
|
p_bootloader_settings->bank_0_size,
|
|
NULL);
|
|
}
|
|
|
|
success = (image_crc == p_bootloader_settings->bank_0_crc);
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
|
|
static void bootloader_settings_save(bootloader_settings_t * p_settings)
|
|
{
|
|
if ( is_ota() )
|
|
{
|
|
uint32_t err_code = pstorage_clear(&m_bootsettings_handle, sizeof(bootloader_settings_t));
|
|
APP_ERROR_CHECK(err_code);
|
|
|
|
err_code = pstorage_store(&m_bootsettings_handle, (uint8_t *) p_settings, sizeof(bootloader_settings_t), 0);
|
|
APP_ERROR_CHECK(err_code);
|
|
}
|
|
else
|
|
{
|
|
nrf_nvmc_page_erase(BOOTLOADER_SETTINGS_ADDRESS);
|
|
nrf_nvmc_write_words(BOOTLOADER_SETTINGS_ADDRESS, (uint32_t *) p_settings, sizeof(bootloader_settings_t) / 4);
|
|
|
|
pstorage_callback_handler(&m_bootsettings_handle, PSTORAGE_STORE_OP_CODE, NRF_SUCCESS, (uint8_t *) p_settings, sizeof(bootloader_settings_t));
|
|
}
|
|
}
|
|
|
|
|
|
void bootloader_dfu_update_process(dfu_update_status_t update_status)
|
|
{
|
|
__attribute__((aligned(4))) static bootloader_settings_t settings;
|
|
bootloader_settings_t const * p_bootloader_settings;
|
|
|
|
bootloader_util_settings_get(&p_bootloader_settings);
|
|
|
|
if (update_status.status_code == DFU_UPDATE_APP_COMPLETE)
|
|
{
|
|
settings.bank_0_crc = update_status.app_crc;
|
|
settings.bank_0_size = update_status.app_size;
|
|
settings.bank_0 = BANK_VALID_APP;
|
|
settings.bank_1 = BANK_INVALID_APP;
|
|
|
|
m_update_status = BOOTLOADER_SETTINGS_SAVING;
|
|
bootloader_settings_save(&settings);
|
|
}
|
|
else if (update_status.status_code == DFU_UPDATE_SD_COMPLETE)
|
|
{
|
|
settings.bank_0_crc = update_status.app_crc;
|
|
settings.bank_0_size = update_status.sd_size +
|
|
update_status.bl_size +
|
|
update_status.app_size;
|
|
settings.bank_0 = BANK_VALID_SD;
|
|
settings.bank_1 = BANK_INVALID_APP;
|
|
settings.sd_image_size = update_status.sd_size;
|
|
settings.bl_image_size = update_status.bl_size;
|
|
settings.app_image_size = update_status.app_size;
|
|
settings.sd_image_start = update_status.sd_image_start;
|
|
|
|
m_update_status = BOOTLOADER_SETTINGS_SAVING;
|
|
bootloader_settings_save(&settings);
|
|
}
|
|
else if (update_status.status_code == DFU_UPDATE_BOOT_COMPLETE)
|
|
{
|
|
settings.bank_0 = p_bootloader_settings->bank_0;
|
|
settings.bank_0_crc = p_bootloader_settings->bank_0_crc;
|
|
settings.bank_0_size = p_bootloader_settings->bank_0_size;
|
|
settings.bank_1 = BANK_VALID_BOOT;
|
|
settings.sd_image_size = update_status.sd_size;
|
|
settings.bl_image_size = update_status.bl_size;
|
|
settings.app_image_size = update_status.app_size;
|
|
|
|
m_update_status = BOOTLOADER_SETTINGS_SAVING;
|
|
bootloader_settings_save(&settings);
|
|
}
|
|
else if (update_status.status_code == DFU_UPDATE_SD_SWAPPED)
|
|
{
|
|
if (p_bootloader_settings->bank_0 == BANK_VALID_SD)
|
|
{
|
|
settings.bank_0_crc = 0;
|
|
settings.bank_0_size = 0;
|
|
settings.bank_0 = BANK_INVALID_APP;
|
|
}
|
|
// This handles cases where SoftDevice was not updated, hence bank0 keeps its settings.
|
|
else
|
|
{
|
|
settings.bank_0 = p_bootloader_settings->bank_0;
|
|
settings.bank_0_crc = p_bootloader_settings->bank_0_crc;
|
|
settings.bank_0_size = p_bootloader_settings->bank_0_size;
|
|
}
|
|
|
|
settings.bank_1 = BANK_INVALID_APP;
|
|
settings.sd_image_size = 0;
|
|
settings.bl_image_size = 0;
|
|
settings.app_image_size = 0;
|
|
|
|
m_update_status = BOOTLOADER_SETTINGS_SAVING;
|
|
bootloader_settings_save(&settings);
|
|
}
|
|
else if (update_status.status_code == DFU_TIMEOUT)
|
|
{
|
|
// Timeout has occurred. Close the connection with the DFU Controller.
|
|
uint32_t err_code;
|
|
if ( is_ota() )
|
|
{
|
|
err_code = dfu_transport_ble_close();
|
|
}else
|
|
{
|
|
err_code = dfu_transport_serial_close();
|
|
}
|
|
APP_ERROR_CHECK(err_code);
|
|
|
|
m_update_status = BOOTLOADER_TIMEOUT;
|
|
}
|
|
else if (update_status.status_code == DFU_BANK_0_ERASED)
|
|
{
|
|
settings.bank_0_crc = 0;
|
|
settings.bank_0_size = 0;
|
|
settings.bank_0 = BANK_INVALID_APP;
|
|
settings.bank_1 = p_bootloader_settings->bank_1;
|
|
|
|
bootloader_settings_save(&settings);
|
|
}
|
|
else if (update_status.status_code == DFU_RESET)
|
|
{
|
|
m_update_status = BOOTLOADER_RESET;
|
|
}
|
|
else
|
|
{
|
|
// No implementation needed.
|
|
}
|
|
}
|
|
|
|
|
|
uint32_t bootloader_init(void)
|
|
{
|
|
uint32_t err_code;
|
|
pstorage_module_param_t storage_params = {.cb = pstorage_callback_handler};
|
|
|
|
err_code = pstorage_init();
|
|
VERIFY_SUCCESS(err_code);
|
|
|
|
m_bootsettings_handle.block_id = BOOTLOADER_SETTINGS_ADDRESS;
|
|
err_code = pstorage_register(&storage_params, &m_bootsettings_handle);
|
|
|
|
return err_code;
|
|
}
|
|
|
|
|
|
uint32_t bootloader_dfu_start(bool ota, uint32_t timeout_ms)
|
|
{
|
|
uint32_t err_code;
|
|
|
|
// Clear swap if banked update is used.
|
|
err_code = dfu_init();
|
|
VERIFY_SUCCESS(err_code);
|
|
|
|
if ( ota )
|
|
{
|
|
err_code = dfu_transport_ble_update_start();
|
|
}else
|
|
{
|
|
// timeout_ms > 0 is forced startup DFU
|
|
if ( timeout_ms )
|
|
{
|
|
dfu_startup_packet_received = false;
|
|
|
|
app_timer_create(&_dfu_startup_timer, APP_TIMER_MODE_SINGLE_SHOT, dfu_startup_timer_handler);
|
|
app_timer_start(_dfu_startup_timer, APP_TIMER_TICKS(timeout_ms), NULL);
|
|
}
|
|
|
|
err_code = dfu_transport_serial_update_start();
|
|
}
|
|
|
|
wait_for_events();
|
|
|
|
return err_code;
|
|
}
|
|
|
|
|
|
/**@brief Function for disabling all interrupts before jumping from bootloader to application.
|
|
*/
|
|
static void interrupts_disable(void)
|
|
{
|
|
uint32_t interrupt_setting_mask;
|
|
uint32_t irq = 0; // We start from first interrupt, i.e. interrupt 0.
|
|
|
|
// Fetch the current interrupt settings.
|
|
interrupt_setting_mask = NVIC->ISER[0];
|
|
|
|
for (; irq < MAX_NUMBER_INTERRUPTS; irq++)
|
|
{
|
|
if (interrupt_setting_mask & (IRQ_ENABLED << irq))
|
|
{
|
|
// The interrupt was enabled, and hence disable it.
|
|
NVIC_DisableIRQ((IRQn_Type)irq);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void bootloader_app_start(uint32_t app_addr)
|
|
{
|
|
// If the applications CRC has been checked and passed, the magic number will be written and we
|
|
// can start the application safely.
|
|
APP_ERROR_CHECK ( sd_softdevice_disable() );
|
|
|
|
interrupts_disable();
|
|
|
|
#if 0 // may need set forward irq
|
|
sd_mbr_command_t command =
|
|
{
|
|
.command = SD_MBR_COMMAND_IRQ_FORWARD_ADDRESS_SET,
|
|
.params.irq_forward_address_set.address = MBR_SIZE,
|
|
};
|
|
|
|
sd_mbr_command(&command);
|
|
#endif
|
|
|
|
APP_ERROR_CHECK( sd_softdevice_vector_table_base_set(CODE_REGION_1_START) );
|
|
|
|
bootloader_util_app_start(CODE_REGION_1_START);
|
|
}
|
|
|
|
|
|
bool bootloader_dfu_sd_in_progress(void)
|
|
{
|
|
bootloader_settings_t const * p_bootloader_settings;
|
|
|
|
bootloader_util_settings_get(&p_bootloader_settings);
|
|
|
|
if (p_bootloader_settings->bank_0 == BANK_VALID_SD ||
|
|
p_bootloader_settings->bank_1 == BANK_VALID_BOOT)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
uint32_t bootloader_dfu_sd_update_continue(void)
|
|
{
|
|
uint32_t err_code;
|
|
|
|
if ((dfu_sd_image_validate() == NRF_SUCCESS) &&
|
|
(dfu_bl_image_validate() == NRF_SUCCESS))
|
|
{
|
|
return NRF_SUCCESS;
|
|
}
|
|
|
|
// Ensure that flash operations are not executed within the first 100 ms seconds to allow
|
|
// a debugger to be attached.
|
|
NRFX_DELAY_MS(100);
|
|
|
|
err_code = dfu_sd_image_swap();
|
|
APP_ERROR_CHECK(err_code);
|
|
|
|
err_code = dfu_sd_image_validate();
|
|
APP_ERROR_CHECK(err_code);
|
|
|
|
err_code = dfu_bl_image_swap();
|
|
APP_ERROR_CHECK(err_code);
|
|
|
|
return err_code;
|
|
}
|
|
|
|
|
|
uint32_t bootloader_dfu_sd_update_finalize(void)
|
|
{
|
|
dfu_update_status_t update_status = {DFU_UPDATE_SD_SWAPPED, };
|
|
|
|
bootloader_dfu_update_process(update_status);
|
|
|
|
wait_for_events();
|
|
|
|
return NRF_SUCCESS;
|
|
}
|
|
|
|
|
|
void bootloader_settings_get(bootloader_settings_t * const p_settings)
|
|
{
|
|
bootloader_settings_t const * p_bootloader_settings;
|
|
|
|
bootloader_util_settings_get(&p_bootloader_settings);
|
|
|
|
p_settings->bank_0 = p_bootloader_settings->bank_0;
|
|
p_settings->bank_0_crc = p_bootloader_settings->bank_0_crc;
|
|
p_settings->bank_0_size = p_bootloader_settings->bank_0_size;
|
|
p_settings->bank_1 = p_bootloader_settings->bank_1;
|
|
p_settings->sd_image_size = p_bootloader_settings->sd_image_size;
|
|
p_settings->bl_image_size = p_bootloader_settings->bl_image_size;
|
|
p_settings->app_image_size = p_bootloader_settings->app_image_size;
|
|
p_settings->sd_image_start = p_bootloader_settings->sd_image_start;
|
|
}
|
|
|