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Merge pull request #224 from aabadie/bootloader
Testbed: add bootloader application with examples
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| /** | ||
| * @file partition.c | ||
| * @addtogroup BSP | ||
| * | ||
| * @brief Implementation of the "partition" bsp module. | ||
| * | ||
| * @author Alexandre Abadie <[email protected]> | ||
| * | ||
| * @copyright Inria, 2023 | ||
| */ | ||
|
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| #include <assert.h> | ||
| #include <stdlib.h> | ||
| #include <stdint.h> | ||
| #include <string.h> | ||
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| #include "nrf.h" | ||
| #include "nvmc.h" | ||
| #include "partition.h" | ||
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| //=========================== defines ========================================= | ||
|
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| //=========================== defines ========================================= | ||
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| #if defined(NRF5340_XXAA) && defined(NRF_APPLICATION) | ||
| #define NRF_NVMC NRF_NVMC_S | ||
| #elif defined(NRF5340_XXAA) && defined(NRF_NETWORK) | ||
| #define NRF_NVMC NRF_NVMC_NS | ||
| #endif | ||
|
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| #define DB_PARTITIONS_TABLE_ADDRESS (0x00001000UL + DB_FLASH_OFFSET) | ||
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| //=========================== public ========================================== | ||
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| void db_read_partitions_table(db_partitions_table_t *partitions) { | ||
| memcpy((void *)partitions, (uint32_t *)DB_PARTITIONS_TABLE_ADDRESS, sizeof(db_partitions_table_t)); | ||
| } | ||
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| void db_write_partitions_table(const db_partitions_table_t *partitions) { | ||
| uint32_t *addr = (uint32_t *)DB_PARTITIONS_TABLE_ADDRESS; | ||
| NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Een << NVMC_CONFIG_WEN_Pos); | ||
| #if defined(NRF5340_XXAA) | ||
| *(uint32_t *)addr = 0xFFFFFFFF; | ||
| #else | ||
| NRF_NVMC->ERASEPAGE = (uint32_t)addr; | ||
| #endif | ||
| while (!NRF_NVMC->READY) {} | ||
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| NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos); | ||
| *addr++ = partitions->magic; | ||
| *addr++ = partitions->length; | ||
| *addr++ = partitions->active_image; | ||
| for (uint32_t i = 0; i < partitions->length; i++) { | ||
| *addr++ = partitions->partitions[i].address; | ||
| *addr++ = partitions->partitions[i].size; | ||
| } | ||
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| NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| #ifndef __PARTITION_H | ||
| #define __PARTITION_H | ||
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| /** | ||
| * @file partition.h | ||
| * @addtogroup BSP | ||
| * | ||
| * @brief Cross-platform declaration "partition" bsp module. | ||
| * | ||
| * @author Alexandre Abadie <[email protected]> | ||
| * | ||
| * @copyright Inria, 2023 | ||
| */ | ||
|
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| #include <stdint.h> | ||
| #include <string.h> | ||
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| #include <nrf.h> | ||
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| #define DB_PARTITIONS_TABLE_MAGIC (0xD07B0723UL) ///< Magic number used at the beginning of the partition table | ||
| #define DB_PARTITIONS_MAX_COUNT (4U) ///< Maximum number of available partitions | ||
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| typedef struct { | ||
| uint32_t address; ///< Start address of a partition | ||
| uint32_t size; ///< Size of the partition | ||
| } db_partition_t; | ||
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| typedef struct { | ||
| uint32_t magic; ///< Magic number | ||
| uint32_t length; ///< Current number of partitions in the table | ||
| uint32_t active_image; ///< Active image to boot on | ||
| db_partition_t partitions[DB_PARTITIONS_MAX_COUNT]; ///< List of partitions | ||
| } db_partitions_table_t; | ||
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| /** | ||
| * @brief Read partition table on flash | ||
| * @param data Pointer to the runtime partition table | ||
| */ | ||
| void db_read_partitions_table(db_partitions_table_t *partitions); | ||
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| /** | ||
| * @brief Write partition table on flash | ||
| * @param data Pointer to the runtime partition table | ||
| */ | ||
| void db_write_partitions_table(const db_partitions_table_t *partitions); | ||
|
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| #endif // __PARTITION_H |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| #ifndef __OTA_H | ||
| #define __OTA_H | ||
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| /** | ||
| * @file ota.h | ||
| * @addtogroup BSP | ||
| * | ||
| * @brief Cross-platform declaration "ota" drv module. | ||
| * | ||
| * @author Alexandre Abadie <[email protected]> | ||
| * | ||
| * @copyright Inria, 2023 | ||
| */ | ||
|
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| #include <stdint.h> | ||
|
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| //=========================== defines ========================================== | ||
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| #define DB_OTA_CHUNK_SIZE (32U) | ||
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| typedef struct __attribute__((packed, aligned(4))) { | ||
| uint32_t index; | ||
| uint32_t chunk_count; | ||
| uint8_t fw_chunk[DB_OTA_CHUNK_SIZE]; | ||
| } db_ota_pkt_t; | ||
|
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| //=========================== prototypes ======================================= | ||
|
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| /** | ||
| * @brief Start the OTA process | ||
| */ | ||
| void db_ota_start(void); | ||
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| /** | ||
| * @brief Finalize the OTA process: switch the active partition and reboot | ||
| */ | ||
| void db_ota_finish(void); | ||
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| /** | ||
| * @brief Write a chunk of the firmware on the inactive partition | ||
| * | ||
| * @param[in] pkt Pointer the OTA packet | ||
| */ | ||
| void db_ota_write_chunk(const db_ota_pkt_t *pkt); | ||
|
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| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| /** | ||
| * @file ota.c | ||
| * @addtogroup DRV | ||
| * | ||
| * @brief nRF52833-specific definition of the "ota" drv module. | ||
| * | ||
| * @author Alexandre Abadie <[email protected]> | ||
| * | ||
| * @copyright Inria, 2023 | ||
| */ | ||
| #include <nrf.h> | ||
| #include <assert.h> | ||
| #include <stdbool.h> | ||
| #include <stdint.h> | ||
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| #include "nvmc.h" | ||
| #include "ota.h" | ||
| #include "partition.h" | ||
|
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| //=========================== defines ========================================== | ||
|
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| typedef struct { | ||
| db_partitions_table_t table; | ||
| uint32_t slot; | ||
| uint32_t addr; | ||
| } db_ota_vars_t; | ||
|
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| //=========================== variables ======================================== | ||
|
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| static db_ota_vars_t _ota_vars = { 0 }; | ||
|
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| //============================ public ========================================== | ||
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| void db_ota_start(void) { | ||
| db_read_partitions_table(&_ota_vars.table); | ||
| _ota_vars.slot = (_ota_vars.table.active_image + 1) % 2; | ||
| _ota_vars.addr = _ota_vars.table.partitions[_ota_vars.slot].address; | ||
| } | ||
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| void db_ota_finish(void) { | ||
| // Switch active image in partition table before resetting the device | ||
| // TODO: do more verifications (CRC, etc) before rebooting | ||
| _ota_vars.table.active_image = _ota_vars.slot; | ||
| db_write_partitions_table(&_ota_vars.table); | ||
| NVIC_SystemReset(); | ||
| } | ||
|
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| void db_ota_write_chunk(const db_ota_pkt_t *pkt) { | ||
| uint32_t addr = _ota_vars.addr + pkt->index * DB_OTA_CHUNK_SIZE; | ||
| if (addr % DB_FLASH_PAGE_SIZE == 0) { | ||
| db_nvmc_page_erase(addr / DB_FLASH_PAGE_SIZE); | ||
| } | ||
| db_nvmc_write((uint32_t *)addr, pkt->fw_chunk, DB_OTA_CHUNK_SIZE); | ||
| } |
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