/** * @file bus_common.h * @author XRADIO IOT WLAN Team */ /* * Copyright (C) 2017 XRADIO TECHNOLOGY CO., LTD. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the * distribution. * 3. Neither the name of XRADIO TECHNOLOGY CO., LTD. nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __BUS_COMMON_H__ #define __BUS_COMMON_H__ #include "driver/chip/hal_i2c.h" #ifdef __cplusplus extern "C" { #endif static int axp_i2cdev_read(I2C_ID i2cID, uint16_t i2caddr, uint8_t reg, uint8_t *data, int size) { int ret; ret = HAL_I2C_Master_Transmit_IT(i2cID, i2caddr, ®, size); if (ret != size) { printf("IIC transmit error %d\r\n", ret); HAL_I2C_Busy_Reset(i2cID); return -1; } ret = HAL_I2C_Master_Receive_IT(i2cID, i2caddr, data, size); if (ret != size) { printf("IIC receive error %d\r\n", ret); HAL_I2C_Busy_Reset(i2cID); return -1; } return 0; } static int axp_i2cdev_write(I2C_ID i2cID, uint16_t i2caddr, uint8_t reg, uint8_t *regdata, int bytenum) { int ret, i; int len = 2; uint8_t send_data[2]; for (i = 0; i < bytenum; i++) { send_data[0] = reg + i; send_data[1] = *(regdata + i); ret = HAL_I2C_Master_Transmit_IT(i2cID, i2caddr, send_data, len); if (ret != len) { printf("IIC transmit error %d\r\n", ret); HAL_I2C_Busy_Reset(i2cID); return -1; } } return 0; } #ifdef __cplusplus } #endif #endif /* __BUS_COMMON_H__ */