iio_ad4080.h

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/***************************************************************************/
#ifndef __IIO_AD4080_H__
#define __IIO_AD4080_H__
#include <stddef.h>
#include <errno.h>
#include "no_os_irq.h"
#include "iio.h"
#include "iio_types.h"
#include "ad4080.h"
 
#define AD4080_IIO_APP_DEVICE_NAME_LEN  16
 
/* Developer notes. We pattern a 15 second around the Max32665 Fthr which has
 * a core clock of 96Mhz or ~10.4ns.
 */
#define AD4080_FIFO_TIMEOUT     1440000000

struct iio_ad4080_fifo_struct {
    struct ad4080_dev *ad4080;
    struct no_os_gpio_desc *ff_full;
    struct no_os_irq_ctrl_desc *irq_desc;
    size_t i_gp;
 
    size_t watermark;
    uint8_t *raw_fifo;
    size_t bufsize;
    uint32_t *formatted_fifo;
    size_t formatted_bufsize;
};

struct iio_ad4080_desc {
    struct ad4080_dev *ad4080;
    struct iio_ad4080_fifo_struct fifo;
    struct no_os_gpio_desc *afe_ctrl;
 
    /* Per-instance channel/scan_type so two AD408x parts of different
     * resolution don't clobber each other's realbits. */
    struct scan_type scan_type;
    struct iio_channel ch;
 
    uint32_t app_device_count;
    char app_device_name[AD4080_IIO_APP_DEVICE_NAME_LEN];
    unsigned long sampling_frequency_idx;
};

struct iio_ad4080_init_param {
    struct ad4080_init_param *ad4080_init_param;
    struct no_os_gpio_init_param *ff_full_init_param;
    struct no_os_gpio_init_param *afe_ctrl_init_param;
    size_t i_gp;
    size_t watermark;
};

int iio_ad4080_init(struct iio_ad4080_desc **iio_ad4080,
            struct iio_ad4080_init_param *iio_ad4080_init_param);

void iio_ad4080_fini(struct iio_ad4080_desc *iio_ad4080);

int ad4080_device(struct iio_ad4080_desc *iio_ad4080,
          struct ad4080_dev **ad4080);

int ad4080_iio_device(struct iio_ad4080_desc *iio_ad4080,
              struct iio_device *iio_device);
 
#endif /* _IIO_AD4080_H__ */