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simmel-bootloader/lib/sdk11/components/libraries/bootloader_dfu/bootloader.c

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/* 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 NRF_USBD
#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. (from IRQn_Type) */
#if defined(NRF52832_XXAA)
#define MAX_NUMBER_INTERRUPTS 39
#elif defined(NRF52840_XXAA) || defined(NRF52833_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(NRF_WDT) )
{
for (uint8_t i=0; i<8; i++) nrf_wdt_reload_request_set(NRF_WDT, i);
}
// Event received. Process it from the scheduler.
app_sched_execute();
#ifdef NRF_USBD
// skip if usb is not inited ( e.g OTA / finializing sd/bootloader )
if ( tusb_inited() )
{
tud_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)
{
nrfx_nvmc_page_erase(BOOTLOADER_SETTINGS_ADDRESS);
nrfx_nvmc_words_write(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;
}
void bootloader_run(uint32_t timeout_ms)
{
// uint32_t err_code;
// // Clear swap if banked update is used.
// err_code = dfu_init();
// VERIFY_SUCCESS(err_code);
// 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;
}
/**@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 = { 0 };
// update_status.status_code = 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;
}
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