ad400x.h

Go to the documentation of this file.

/***************************************************************************/
#ifndef SRC_AD400X_H_
#define SRC_AD400X_H_
 
#include <stdbool.h>
 
#if !defined(USE_STANDARD_SPI)
#include "spi_engine.h"
#include "clk_axi_clkgen.h"
#include "no_os_pwm.h"
#else
#include "no_os_spi.h"
#endif
#include "no_os_gpio.h"
 
/******************************************************************************/
/********************** Macros and Constants Definitions **********************/
/******************************************************************************/
#define AD400X_READ_COMMAND 0x54
#define AD400X_WRITE_COMMAND    0x14
#define AD400X_RESERVED_MSK 0xE0
 
#define AD400X_TURBO_MODE(x)        (((x) & 0x1) << 1)
#define AD400X_HIGH_Z_MODE(x)       (((x) & 0x1) << 2)
#define AD400X_SPAN_COMPRESSION(x)  (((x) & 0x1) << 3)
#define AD400X_EN_STATUS_BITS(x)    (((x) & 0x1) << 4)
 
enum ad400x_supported_dev_ids {
    ID_AD4000,
    ID_AD4001,
    ID_AD4002,
    ID_AD4003,
    ID_AD4004,
    ID_AD4005,
    ID_AD4006,
    ID_AD4007,
    ID_AD4011,
    ID_AD4020,
    ID_ADAQ4003,
};
 
struct ad400x_dev_info {
    uint16_t resolution;
    char sign;
};
 
struct ad400x_dev {
    /* SPI */
    struct no_os_spi_desc *spi_desc;
    /* Clock gen for hdl design structure */
    struct axi_clkgen *clkgen;
    /* Trigger conversion PWM generator descriptor */
    struct no_os_pwm_desc *trigger_pwm_desc;
    struct no_os_gpio_desc *gpio_cnv;
    /* Register access speed */
    uint32_t reg_access_speed;
    /* Device Settings */
    enum ad400x_supported_dev_ids dev_id;
    struct spi_engine_offload_init_param *offload_init_param;
    const struct ad400x_dev_info *dev_info;
    void (*dcache_invalidate_range)(uint32_t address, uint32_t bytes_count);
    /* enable offload */
    bool offload_enable;
};
 
struct ad400x_init_param {
    /* SPI */
    struct no_os_spi_init_param *spi_init;
    /* PWM generator init structure */
    struct no_os_pwm_init_param *trigger_pwm_init;
    /* Clock gen for hdl design init structure */
    struct axi_clkgen_init *clkgen_init;
    /* Clock generator rate */
    uint32_t axi_clkgen_rate;
    struct no_os_gpio_init_param *gpio_cnv;
    /* Register access speed */
    uint32_t reg_access_speed;
    /* Device Settings */
    enum ad400x_supported_dev_ids dev_id;
    struct spi_engine_offload_init_param *offload_init_param;
    void (*dcache_invalidate_range)(uint32_t address, uint32_t bytes_count);
    /* buffer to store data samples */
    uint32_t *buffer;
    /* buffer size */
    uint32_t buffer_size;
    bool offload_enable;
    bool turbo_mode;
    bool high_z_mode;
    bool span_compression;
    bool en_status_bits;
};
 
int32_t ad400x_spi_reg_read(struct ad400x_dev *dev,
                uint8_t *reg_data);
int32_t ad400x_spi_reg_write(struct ad400x_dev *dev,
                 uint8_t reg_data);
int32_t ad400x_init(struct ad400x_dev **device,
            struct ad400x_init_param *init_param);
int32_t ad400x_remove(struct ad400x_dev *dev);
/* read data samples */
int32_t ad400x_read_data(struct ad400x_dev *dev, uint32_t *buf,
             uint16_t samples);
#endif /* SRC_AD400X_H_ */