//
// Created by cfif on 11.02.23.
//

#include "i2c_application.h"
#include "delay_sec.h"
#include "stdbool.h"

/** @addtogroup AT32F437_periph_examples
  * @{
  */

/** @addtogroup 437_I2C_communication_smbus I2C_communication_smbus
  * @{
  */

#define I2C_TIMEOUT                      0xFFFF

//#define I2Cx_CLKCTRL                   0xB170FFFF   //10K
//#define I2Cx_CLKCTRL                   0xC0E06969   //50K
#define I2Cx_CLKCTRL                     0x80504C4E   //100K
//#define I2Cx_CLKCTRL                   0x30F03C6B   //200K

//0x6A
#define I2Cx_ADDRESS                     (0x60 << 1)

#define I2Cx_PORT                        I2C3
#define I2Cx_CLK                         CRM_I2C3_PERIPH_CLOCK
#define I2Cx_DMA                         DMA1
#define I2Cx_DMA_CLK                     CRM_DMA1_PERIPH_CLOCK

#define I2Cx_SCL_GPIO_CLK                CRM_GPIOF_PERIPH_CLOCK
#define I2Cx_SCL_GPIO_PIN                GPIO_PINS_14
#define I2Cx_SCL_GPIO_PinsSource         GPIO_PINS_SOURCE14
#define I2Cx_SCL_GPIO_PORT               GPIOF
#define I2Cx_SCL_GPIO_MUX                GPIO_MUX_4

#define I2Cx_SDA_GPIO_CLK                CRM_GPIOF_PERIPH_CLOCK
#define I2Cx_SDA_GPIO_PIN                GPIO_PINS_15
#define I2Cx_SDA_GPIO_PinsSource         GPIO_PINS_SOURCE15
#define I2Cx_SDA_GPIO_PORT               GPIOF
#define I2Cx_SDA_GPIO_MUX                GPIO_MUX_4


i2c_handle_type hi2cx;


void i2c_lowlevel_init(i2c_handle_type *hi2c) {
    gpio_init_type gpio_init_structure;

    if (hi2c->i2cx == I2Cx_PORT) {
        /* i2c periph clock enable */
        crm_periph_clock_enable(I2Cx_CLK, TRUE);
        crm_periph_clock_enable(I2Cx_SCL_GPIO_CLK, TRUE);
        crm_periph_clock_enable(I2Cx_SDA_GPIO_CLK, TRUE);

        /* gpio configuration */
        gpio_pin_mux_config(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_GPIO_PinsSource, I2Cx_SCL_GPIO_MUX);

        gpio_pin_mux_config(I2Cx_SDA_GPIO_PORT, I2Cx_SDA_GPIO_PinsSource, I2Cx_SDA_GPIO_MUX);

        /* configure i2c pins: scl */
        gpio_init_structure.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
        gpio_init_structure.gpio_mode = GPIO_MODE_MUX;
        gpio_init_structure.gpio_out_type = GPIO_OUTPUT_OPEN_DRAIN;
        gpio_init_structure.gpio_pull = GPIO_PULL_UP;

        gpio_init_structure.gpio_pins = I2Cx_SCL_GPIO_PIN;
        gpio_init(I2Cx_SCL_GPIO_PORT, &gpio_init_structure);

        /* configure i2c pins: sda */
        gpio_init_structure.gpio_pins = I2Cx_SDA_GPIO_PIN;
        gpio_init(I2Cx_SDA_GPIO_PORT, &gpio_init_structure);

        /* config i2c */
        i2c_init(hi2c->i2cx, 0, I2Cx_CLKCTRL);

        i2c_own_address1_set(hi2c->i2cx, I2C_ADDRESS_MODE_7BIT, I2Cx_ADDRESS);
    }
}

const uint16_t V = 1700;

uint8_t reg0[2] = {0x0, V & 7};
uint8_t reg1[2] = {0x1, V >> 3};
uint8_t reg2[2] = {0x2, 0x1};
uint8_t reg3[2] = {0x3, 70};
uint8_t reg_read;

bool sendI2c() {
    i2c_status_type i2c_status;

    hi2cx.i2cx = I2Cx_PORT;

    // i2c config
    i2c_config(&hi2cx);

    uint8_t adr = 1;

    // 0 - запись
    // 1 - чтение

    // Reg0 - Напряжение
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg0, 2, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg0, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, &reg_read, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }

    // Reg1 - Напряжение
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg1, 2, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg1, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, &reg_read, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }


    // Reg3 - Ток
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg3, 2, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg3, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, &reg_read, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }




    // Reg2 - Запуск
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg2, 2, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg2, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, &reg_read, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }

//    delay_ms(20);

    // Reg2
    if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg2, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }
    if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, &reg_read, 1, I2C_TIMEOUT)) != I2C_OK) {
        return false;
    }


    int a = 0;
//    // start the request reception process
//    if((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, tx_buf, 1, I2C_TIMEOUT)) != I2C_OK)
//    {
//        return false;
//    }
//
//    // start the request reception process
//    if((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, rx_buf, 1, I2C_TIMEOUT)) != I2C_OK)
//    {
//        return false;
//    }

//    // start the request reception process
//    if((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, tx_buf, 2, I2C_TIMEOUT)) != I2C_OK)
//    {
//        return false;
//    }
//    // start the request reception process
//    if((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, tx_buf, 1, I2C_TIMEOUT)) != I2C_OK)
//    {
//        return false;
//    }
//
//    // start the request reception process
//    if((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, rx_buf, 1, I2C_TIMEOUT)) != I2C_OK)
//    {
//        return false;
//    }


    /*
    // start the request reception process
    if((i2c_status = i2c_smbus_master_transmit(&hi2cx, I2Cx_ADDRESS | 1, tx_buf, BUF_SIZE, I2C_TIMEOUT)) != I2C_OK)
    {
        return false;
    }

    // start the request reception process
    if((i2c_status = i2c_smbus_master_receive(&hi2cx, I2Cx_ADDRESS | 1, rx_buf, BUF_SIZE, I2C_TIMEOUT)) != I2C_OK)
    {
        return false;
    }
     */

    return true;
}