/* -------------------------------------------------------------------------- */
/* --- DEPENDANCIES --------------------------------------------------------- */

#include <stdint.h> /* C99 types*/
#include <fcntl.h> /* open */
#include <linux/spi/spidev.h>
#include <stdio.h>  /* printf fprintf */
#include <stdlib.h> /* malloc free */
#include <string.h> /* memset */
#include <sys/ioctl.h>
#include <unistd.h> /* lseek, close */
/* -------------------------------------------------------------------------- */
/* --- PUBLIC CONSTANTS ----------------------------------------------------- */

#define MTAC_BURST_CHUNK 1024

#define MTAC_SPI_MUX_MODE0 0x0 /* No FPGA */
#define MTAC_SPI_MUX_MODE1 0x1 /* FPGA, with spi mux header */

#define MTAC_SX1301 0x0
#define MTAC_FPGA 	0x1
#define MTAC_EEPROM 0x2
#define MTAC_SX127X 0x3

/* -------------------------------------------------------------------------- */
/* --- Flash opcodes ---------------------------------------------------------*/
#define WR_STATUS_REG 0x01   /* Write Status Register */
#define PAGE_PROGRAM 0x02    /* Write up to a Page of the Memory */
#define READ_DATA 0x03       /* Read from the Memory */
#define WRITE_DISABLE 0x04   /* Disable Writing to the Memory */
#define RD_STATUS_REG_1 0x05 /* Read Status Register-1 */
#define WRITE_ENABLE 0x06    /* Enable Writing to the Memory */
#define FAST_READ_DATA 0x0B  /* Fast Read from the Memory */
#define SECTOR_ERASE 0x20    /* Erase a Sector (4kb) */
#define RD_STATUS_REG_2 0x35 /* Read Status Register-2 */
#define UNIQUE_ID 0x4B       /* Read Unique ID */
#define WE_STATUS_REG 0x50   /* Write Enable for Status Registers */
#define BLOCK_ERASE_32 0x52  /* Erase a Block (32kb) */
#define CHIP_ERASE 0x60      /* Erase Entire Chip */
#define MNFTR_DEV_ID 0x90    /* Read Manufacturer ID followed by Device ID */
#define JEDEC_ID 0x9F        /* Read JEDEC ID */
#define CHIP_RELEASE 0xAB    /* Release chip from power down */
#define BLOCK_ERASE_64 0xD8  /* Erase a Block (64kb) */
/* -------------------------------------------------------------------------- */
/* --- PUBLIC FUNCTIONS PROTOTYPES ------------------------------------------ */

int mtac_spi_open(char *spidev, void **spi_target_ptr);

int mtac_spi_close(void *spi_target);

int mtac_spi_w(void *spi_target, uint8_t spi_mux_mode, uint8_t spi_mux_target,
               uint8_t address, uint8_t data);

int mtac_spi_r(void *spi_target, uint8_t spi_mux_mode, uint8_t spi_mux_target,
               uint8_t address, uint8_t *data);

int chip_erase(char *spidev, void *spi_target);

int mtac_release(char *spidev, void *spi_target);

int page_program(char *spidev, void *spi_target, uint8_t adr_lower, uint8_t adr_higher,
                 int data[256]);

int write_enable(char *spidev, void *spi_target);

int mtac_id(char *spidev, void *spi_target);

/* --- EOF ------------------------------------------------------------------ */