/* * Copyright (c) 2020 AIIT XUOS Lab * XiUOS is licensed under Mulan PSL v2. * You can use this software according to the terms and conditions of the Mulan PSL v2. * You may obtain a copy of Mulan PSL v2 at: * http://license.coscl.org.cn/MulanPSL2 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. * See the Mulan PSL v2 for more details. */ /** * @file: test_i2c.c * @brief: a application of i2c function * @version: 1.1 * @author: AIIT XUOS Lab * @date: 2022/12/17 */ #include #include #include #ifdef ADD_XIZI_FEATURES #define I2C_SLAVE_ADDRESS 0x0012U int OpenIic(void) { int iic_fd = PrivOpen(I2C_DEV_DRIVER, O_RDWR); if (iic_fd < 0) { printf("[TestI2C] Open iic_fd fd error: %d\n", iic_fd); return -ERROR; } printf("[TestI2C] IIC open successful!\n"); uint16 iic_address = I2C_SLAVE_ADDRESS; struct PrivIoctlCfg ioctl_cfg; ioctl_cfg.ioctl_driver_type = I2C_TYPE; ioctl_cfg.args = (void *)&iic_address; if (0 != PrivIoctl(iic_fd, OPE_INT, &ioctl_cfg)) { printf("[TestI2C] Ioctl iic fd error %d\n", iic_fd); PrivClose(iic_fd); return -ERROR; } printf("IIC configure successful!\n"); return iic_fd; } static const int nr_transmit = 15; void TestMasterI2c(void) { char recv_buff[13] = { 0 }; int iic_fd = OpenIic(); if (iic_fd < 0) { printf("[%s] Error open iic\n", __func__); return; } for (int transmit_cnt = 0; transmit_cnt < nr_transmit; transmit_cnt++) { // wait if you like. PrivTaskDelay(500); memset(recv_buff, 0, sizeof(recv_buff)); PrivRead(iic_fd, recv_buff, sizeof(recv_buff)); printf("[%s] Msg recv: %s\n", __func__, recv_buff); } PrivClose(iic_fd); } void TestSlaveI2c(void) { char send_buff[] = "Hello, World"; int iic_fd = OpenIic(); for (int transmit_cnt = 0; transmit_cnt < nr_transmit; transmit_cnt++) { // wait if you like. PrivTaskDelay(500); PrivWrite(iic_fd, send_buff, sizeof(send_buff)); printf("[%s] Msg send: %s\n", __func__, send_buff); } PrivClose(iic_fd); } PRIV_SHELL_CMD_FUNCTION(TestMasterI2c, a iic test sample, PRIV_SHELL_CMD_MAIN_ATTR); PRIV_SHELL_CMD_FUNCTION(TestSlaveI2c, a iic test sample, PRIV_SHELL_CMD_MAIN_ATTR); #endif