luatos-soc-air105/application/src/luat_i2c_air105.c

#include "luat_base.h"
#include "luat_i2c.h"

#include "app_interface.h"

#define LUAT_LOG_TAG "luat.i2c"
#include "luat_log.h"

int luat_i2c_exist(int id) {
    return id == 0;
}
    
int luat_i2c_setup(int id, int speed, int slaveaddr) {
    if (speed == 0)
        speed = 100 * 1000; // SLOW
    else if (speed == 1)
        speed = 400 * 1000; // FAST
    else if (speed == 2)
        speed = 400 * 1000; // SuperFast
	GPIO_Iomux(GPIOE_06, 2);
	GPIO_Iomux(GPIOE_07, 2);
	I2C_MasterSetup(id, speed);
    return 0;
}

int luat_i2c_close(int id) {
    return 0;
}

int luat_i2c_send(int id, int addr, void* buff, size_t len) {
    I2C_BlockWrite(id, addr, (const uint8_t *)buff, len, 100, NULL, NULL);
    // I2C_Prepare(id, addr, 1, NULL, NULL);
    // I2C_MasterXfer(id, I2C_OP_WRITE, 0, buff, len, 20);
    return 0;
}

int luat_i2c_recv(int id, int addr, void* buff, size_t len) {
    I2C_BlockRead(id, addr, 0, (uint8_t *)buff, len, 100, NULL, NULL);
    // I2C_Prepare(id, addr, 1, NULL, NULL);
    // I2C_MasterXfer(id, I2C_OP_READ, 0, buff, len, 20);
    return 0;
}