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*
* Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
*
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* modification, are permitted provided that the following conditions
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*
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*
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******************************************************************************/
#ifndef OPENOCD_LOADERS_FLASH_CC26XX_FLASHLOADER_H
#define OPENOCD_LOADERS_FLASH_CC26XX_FLASHLOADER_H
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "flash.h"
/* Number of elements in an array */
#define NELEMS(a) (sizeof(a) / sizeof(a[0]))
struct __attribute__((__packed__)) flash_params {
uint32_t dest; /* Destination address in flash */
uint32_t len; /* Number of bytes */
uint32_t cmd; /* Command */
uint32_t full; /* Handshake signal. Is buffer ready? */
uint32_t buf_addr; /* Address of data buffer. */
};
typedef enum {
CMD_NO_ACTION = 0, /* No action, default value */
CMD_ERASE_ALL = 1, /* Erase all unprotected sectors */
CMD_PROGRAM = 2, /* Program data */
CMD_ERASE_AND_PROGRAM = 3, /* Erase and program data */
CMD_ERASE_AND_PROGRAM_WITH_RETAIN = 4, /* Erase and program, but retain */
/* sector data outside given range */
CMD_ERASE_SECTORS = 5 /* Erase unprotected sectors */
} flash_commands_t;
typedef enum {
BUFFER_EMPTY = 0x0, /* No data in buffer, flags last task complete */
BUFFER_FULL = 0xFFFFFFFF /* Buffer has data, flags next task to start */
} flash_handshake_t;
#define STATUS_FLASHLOADER_STATUS_M 0x0000FFFF
#define STATUS_FLASHLOADER_STATUS_S 0
#define STATUS_ROM_CODE_M 0x00FF0000
#define STATUS_ROM_CODE_S 16
#define STATUS_EXT_INFO_M 0xFF000000
#define STATUS_EXT_INFO_S 24
typedef enum {
STATUS_OK = 0,
STATUS_FAILED_ERASE_ALL = 0x101,
STATUS_FAILED_SECTOR_ERASE = 0x102,
STATUS_FAILED_PROGRAM = 0x103,
STATUS_FAILED_INVALID_ARGUMENTS = 0x104,
STATUS_FAILED_UNKNOWN_COMMAND = 0x105,
} flash_status_t;
/* The buffer size used by the flashloader. The size of 1 flash sector. */
#define BUFFER_LEN FLASH_ERASE_SIZE
/*
* This function initializes the flashloader. The application must
* allocate memory for the two data buffers and the flash_params structures.
*
* params Pointer an flash_params array with 2 elements.
* buf1 Pointer to data buffer 1
* buf2 Pointer to data buffer 2
*
* Returns STATUS_OK
*
*/
extern uint32_t flashloader_init(struct flash_params *params, uint8_t *buf1,
uint8_t *buf2);
/*
* Erase and program the necessary sectors. Data outside the given
* range will be deleted.
*
* src Pointer to buffer containing the data.
* address Start address in device flash
* byte_count The number of bytes to program
*
* Returns STATUS_OK on success. For status on failure:
* See flashloader_program() and flashloader_erase_sectors().
*
*/
extern uint32_t flashloader_erase_and_program(uint8_t *src, uint32_t address,
uint32_t byte_count);
/*
* Erase and program the device sectors. Data outside the given
* data range will be kept unchanged.
*
* src Pointer to buffer containing the data.
* address Start address in device flash
* byte_count The number of bytes to program
*
* Returns STATUS_OK on success. For status on failure:
* See flashloader_program() and flashloader_erase_sectors().
*
*/
extern uint32_t flashloader_program_with_retain(uint8_t *src, uint32_t address,
uint32_t byte_count);
/*
* Erases all flash sectors (that are not write-protected).
*
* Returns STATUS_OK on success.
*
*/
extern uint32_t flashloader_erase_all(void);
/*
* Erases the flash sectors affected by the given range.
*
* This function only erases sectors that are not already erased.
*
* start_addr The first address in the range.
* byte_count The number of bytes in the range.
*
* Returns STATUS_OK on success. Returns a combined status on failure:
* [31:24] The sector that failed.
* [23:16] ROM function status code. 0 means success.
* [16: 0] STATUS_FAILED_SECTOR_ERASE
*
*/
extern uint32_t flashloader_erase_sectors(uint32_t start_addr,
uint32_t byte_count);
/*
* Program the given range.
*
* This function does not erase anything, it assumes the sectors are ready to
* be programmed.
*
* src Pointer to buffer containing the data.
* address Start address in device flash
* byte_count The number of bytes to program
*
* Returns STATUS_OK on success. Returns a combined status value on failure:
* [31:16] ROM function status code. 0 means success.
* [15:0 ] STATUS_FAILED_PROGRAM
*
*/
extern uint32_t flashloader_program(uint8_t *src, uint32_t address,
uint32_t byte_count);
/*
* Convert the input address into a sector number.
*
* address The address.
*
* Returns the flash sector which the address resides in. The first sector
* is sector 0.
*
*/
static inline uint32_t flashloader_address_to_sector(uint32_t address)
{ return (address / FLASH_ERASE_SIZE); };
#endif /* #ifndef OPENOCD_LOADERS_FLASH_CC26XX_FLASHLOADER_H */