#ifndef __SPIS_H__
#define __SPIS_H__
#include "lib.h"
#include "gpios.h"

typedef struct SPIS spi_t;

typedef enum
{
    SPI_TYPE_NORMAL = 0, ///< SPI1:NORMAL
    SPI_TYPE_LCD,        ///< SPI2:LCD
    SPI_TYPE_MAX,
} spi_type_e;

/**
 * @brief SPI GPIO group structure
 */
typedef struct
{
    gpio_t *mosi; ///< MOSI
    gpio_t *miso; ///< MISO
    gpio_t *sck;  ///< SCK
    gpio_t *cs;   ///< CS
    gpio_t *rst;  ///< RST
    gpio_t *rdy;  ///< DRDY
    gpio_t *dc;   ///< DC
} spi_gpio_group_t;

/**
 * @brief SPI LCD interface structure
 */
typedef struct
{
    uint8_t (*write_cmd)(spi_t *handle, uint8_t cmd);                  ///< Write a command via SPI
    uint8_t (*write_data)(spi_t *handle, uint8_t *data, uint16_t len); ///< Write data via SPI
} spi_lcd_interface_t;

typedef struct
{
    union
    {
        // spi_normal_interface_t normal;
        spi_lcd_interface_t lcd;
    } u;
    void (*hardware_enable)(spi_t *handle, SPI_HandleTypeDef *spi); ///< Enable hardware SPI
    // void (*dma_enable)(spi_t *handle, DMA_TypeDef *dma, uint32_t dma_rx_channel, spis_dma_callback *dma_rx_cb,
    //                    uint32_t dma_tx_channel, spis_dma_callback *dma_tx_cb); ///< Enable DMA SPI
    // void (*spi_dma_callback)(spi_t *spi);                                      ///< DMA send completion callback
    // BOOL(*spi_dma_send)
    // (spi_t *handle, uint8_t *data, uint16_t length); ///< DMA send
} spi_interface_t;

struct SPIS
{
    uint16_t delay_ticks;   ///< Delay in NOP ticks
    spi_gpio_group_t gpios; ///< SPI GPIOs
    SPI_HandleTypeDef *spi; ///< SPI handle

    spi_interface_t interface; ///< SPI interface
    spi_type_e spi_type;       ///< SPI type
    BOOL simualte_gpio;        ///< Simulate GPIO
};

/**
 * @brief Create a new SPI instance
 *
 * @param spi_type The type of SPI
 * @param gpios The SPI GPIO group
 * @param delay_ticks The delay in NOP ticks
 * @return spi_t* The created SPI instance
 */
extern spi_t *spi_create(spi_type_e spi_type, spi_gpio_group_t gpios, uint16_t delay_ticks);

#endif ///< __SPIS_H__