Diff: targets/cmsis/TARGET_WIZNET/TARGET_W7500x/W7500x_i2c.c

Revision:

619:034e698bc035

Parent:

618:484341a108bc

Child:

620:49241b7c6da5

--- a/targets/cmsis/TARGET_WIZNET/TARGET_W7500x/W7500x_i2c.c	Fri Sep 04 08:45:09 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,290 +0,0 @@
-/* mbed Microcontroller Library 
- *******************************************************************************
- * Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
- * 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 ARM Limited 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 HOLDER 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.
- *******************************************************************************
- */
-/*include -------------------------------------*/
-#include <stdio.h>
-#include "W7500x.h"
-
-GPIO_InitTypeDef GPIO_InitDef;
-
-uint32_t I2C_Init(I2C_ConfigStruct* conf)
-{
-    uint32_t scl_port_num;
-    uint32_t scl_pin_index;
-    uint32_t sda_port_num;
-    uint32_t sda_pin_index;
-    
-    scl_port_num = I2C_PORT(conf->scl);
-    scl_pin_index = I2C_PIN_INDEX(conf->scl);
-    
-    sda_port_num = I2C_PORT(conf->sda);
-    sda_pin_index = I2C_PIN_INDEX(conf->sda);
-    
-    //SCL setting
-    GPIO_InitDef.GPIO_Pin = scl_pin_index;
-    GPIO_InitDef.GPIO_Mode = GPIO_Mode_OUT;
-
-    HAL_GPIO_Init((GPIO_TypeDef*)(GPIOA_BASE + (scl_port_num << 24)), &GPIO_InitDef);
-    HAL_GPIO_SetBits((GPIO_TypeDef*)(GPIOA_BASE + (scl_port_num << 24)), scl_pin_index);
-    
-    //SDA setting
-    GPIO_InitDef.GPIO_Pin = sda_pin_index;
-    GPIO_InitDef.GPIO_Mode = GPIO_Mode_IN;
-    
-    HAL_GPIO_Init((GPIO_TypeDef*)(GPIOA_BASE + (sda_port_num << 24)), &GPIO_InitDef);
-    HAL_GPIO_ResetBits((GPIO_TypeDef*)(GPIOA_BASE + (sda_port_num << 24)), sda_pin_index);
-    
-    //Pin muxing
-    HAL_PAD_AFConfig(scl_port_num, scl_pin_index, PAD_AF1);
-    HAL_PAD_AFConfig(sda_port_num, sda_pin_index, PAD_AF1);
-
-    return 0;
-}
-
-void I2C_WriteBitSCL(I2C_ConfigStruct* conf, uint8_t data)
-{
-    uint32_t scl_port_num = I2C_PORT(conf->scl);
-    uint32_t scl_pin_index = I2C_PIN_INDEX(conf->scl);
-
-    if(data == 1)
-        HAL_GPIO_SetBits((GPIO_TypeDef*)(GPIOA_BASE + (scl_port_num << 24)), scl_pin_index);
-    else
-        HAL_GPIO_ResetBits((GPIO_TypeDef*)(GPIOA_BASE + (scl_port_num << 24)), scl_pin_index);
-    
-}
-
-void I2C_WriteBitSDA(I2C_ConfigStruct* conf, uint8_t data)
-{
-    uint32_t sda_port_num = I2C_PORT(conf->sda);
-    uint32_t sda_pin_index = I2C_PIN_INDEX(conf->sda);
-
-    if(data == 1)
-        GPIO_OutEnClr((GPIO_TypeDef*)(GPIOA_BASE + (sda_port_num << 24)), sda_pin_index);
-    else
-        GPIO_OutEnSet((GPIO_TypeDef*)(GPIOA_BASE + (sda_port_num << 24)), sda_pin_index);
-    
-}
-
-uint8_t I2C_ReadBitSDA(I2C_ConfigStruct* conf)
-{
-    uint32_t sda_port_num = I2C_PORT(conf->sda);
-    uint32_t sda_pin_index = I2C_PIN_INDEX(conf->sda);
-    
-    if(HAL_GPIO_ReadInputDataBit((GPIO_TypeDef*)(GPIOA_BASE + (sda_port_num << 24)), sda_pin_index))
-        return 1;
-    else
-        return 0;
-    
-    
-    return 0;
-}
-
-void I2C_Start(I2C_ConfigStruct* conf)
-{
-    I2C_WriteBitSCL(conf, 1);
-    I2C_WriteBitSDA(conf, 1);
-    
-    I2C_WriteBitSDA(conf, 0);
-    I2C_WriteBitSCL(conf, 0);
-}
-
-void I2C_Stop(I2C_ConfigStruct* conf)
-{
-    I2C_WriteBitSCL(conf, 0);
-    I2C_WriteBitSDA(conf, 0);
-    
-    I2C_WriteBitSCL(conf, 1);
-    I2C_WriteBitSDA(conf, 1);
-}
-
-uint8_t I2C_WriteByte(I2C_ConfigStruct* conf, uint8_t data)
-{
-    int i;
-    uint8_t ret;
-    
-    //Write byte
-    for(i=0; i<8; i++)
-    {
-        if((data << i) & 0x80)
-            I2C_WriteBitSDA(conf, 1);
-        else
-            I2C_WriteBitSDA(conf, 0);
-        
-        I2C_WriteBitSCL(conf, 1);
-        I2C_WriteBitSCL(conf, 0);
-    }
-    //Make clk for receiving ack
-    I2C_WriteBitSDA(conf, 1);
-    I2C_WriteBitSCL(conf, 1);
-    //Read Ack/Nack
-    ret = I2C_ReadBitSDA(conf);
-    
-    I2C_WriteBitSCL(conf, 0);
-    
-    return ret;
-}
-
-void I2C_SendACK(I2C_ConfigStruct* conf)
-{
-    I2C_WriteBitSDA(conf, 0);
-    I2C_WriteBitSCL(conf, 1);
-    
-    I2C_WriteBitSCL(conf, 0);
-}
-    
-void I2C_SendNACK(I2C_ConfigStruct* conf)
-{
-    I2C_WriteBitSDA(conf, 1);
-    I2C_WriteBitSCL(conf, 1);
-    
-    I2C_WriteBitSCL(conf, 0);
-}
-
-uint8_t I2C_ReadByte(I2C_ConfigStruct* conf)
-{
-    int i;
-    uint8_t ret = 0;
-    
-    I2C_WriteBitSDA(conf, 1); //out enable clear(GPIO is input)
-    
-    //Read byte
-    for(i=0; i<8; i++)
-    {
-        I2C_WriteBitSCL(conf, 1);
-        ret = (ret << 1) | (I2C_ReadBitSDA(conf));
-        I2C_WriteBitSCL(conf, 0);
-    }
-        
-    return ret;
-}
-
-int I2C_Write(I2C_ConfigStruct* conf, uint8_t addr, uint8_t* data, uint32_t len)
-{
-    int i;
-    
-    I2C_Start(conf);
-    
-    //Write addr
-    if(I2C_WriteByte(conf, addr) != 0)
-    {
-        printf("Received NACK at address phase!!\r\n");
-        return -1;
-    }
-
-    //Write data
-    for(i=0; i<len; i++)
-    {
-        if(I2C_WriteByte(conf, data[i]))
-            return -1;
-    }
-    
-    I2C_Stop(conf);
-    
-    return 0;//success
-}
-
-int I2C_WriteRepeated(I2C_ConfigStruct* conf, uint8_t addr, uint8_t* data, uint32_t len)
-{
-    int i;
-    
-    I2C_Start(conf);
-    
-    //Write addr
-    if(I2C_WriteByte(conf, addr) != 0)
-    {
-        printf("Received NACK at address phase!!\r\n");
-        return -1;
-    }
-
-    //Write data
-    for(i=0; i<len; i++)
-    {
-        if(I2C_WriteByte(conf, data[i]))
-            return -1;
-    }
-    
-    return 0;//success
-}
-
-int I2C_Read(I2C_ConfigStruct* conf, uint8_t addr, uint8_t* data, uint32_t len)
-{
-    int i;
-    
-    I2C_Start(conf);
-    
-    //Write addr | read command
-    if(I2C_WriteByte(conf, (addr | 1)) != 0)
-    {
-        printf("Received NACK at address phase!!\r\n");
-        return -1;
-    }
-    
-    //Read data
-    for(i=0; i<len; i++)
-    {
-        data[i] = I2C_ReadByte(conf);
-        
-        if( i == (len - 1) )
-            I2C_SendNACK(conf);
-        else
-            I2C_SendACK(conf);
-    }
-    
-    I2C_Stop(conf);
-    
-    return 0;//success
-}
-
-int I2C_ReadRepeated(I2C_ConfigStruct* conf, uint8_t addr, uint8_t* data, uint32_t len)
-{
-    int i;
-    
-    I2C_Start(conf);
-    
-    //Write addr | read command
-    if(I2C_WriteByte(conf, (addr | 1)) != 0)
-    {
-        printf("Received NACK at address phase!!\r\n");
-        return -1;
-    }
-    
-    //Read data
-    for(i=0; i<len; i++)
-    {
-        data[i] = I2C_ReadByte(conf);
-        
-        if( i == (len - 1) )
-            I2C_SendNACK(conf);
-        else
-            I2C_SendACK(conf);
-    }
-    
-    return 0;//success
-}
-