221 lines
5.4 KiB
C
221 lines
5.4 KiB
C
#include "./rfid_hal.h"
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#include "gSensor/gSensor_manage.h"
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#include "./include/rfid_main.h"
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#include "./include/READER_REG.h"
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#include "asm/spi.h"
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#define FUN_ENABLE_XLOG 1
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#ifdef xlog
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#undef xlog
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#endif
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#if FUN_ENABLE_XLOG
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#define xlog(format, ...) printf("[XT:%s] " format, __func__, ##__VA_ARGS__)
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#else
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#define xlog(format, ...) ((void)0)
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#endif
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/*
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IFSEL1 IFSEL0 Host_Interface
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0 0 UART
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1 0 SPI
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0 1 IIC
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1 1 SPI
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INTERFACE_TYPE == 0：iic
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== 1: spi
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== 2: uart
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*/
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#define INTERFACE_TYPE 0
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//////////////////////////////////////////////////////////////////////////////////////////////////
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//
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#if INTERFACE_TYPE == 0 //iic接口
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/*
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注：iic读取rfid不建议使用底层的硬件iic，很容易造成程序崩溃，并且时序有时候对不上会造成读写信息错误
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这里利用底层写好的软件iic接口来实现寄存器的读写
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*/
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/*
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IF2 IF0 ADDR
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0 0 0x28
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0 1 0x29
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1 0 0x2A
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1 1 0x2B
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*/
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#define FM176_7BIT_ADDR 0x28 //后两位地址由IF2、IF1决定
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#define FM176_WRITE_ADDR (FM176_7BIT_ADDR << 1)
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#define FM176_READ_ADDR ((FM176_7BIT_ADDR << 1) | 0x01)
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unsigned char FM176XX_HardInit(void){
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#if TCFG_GSENOR_USER_IIC_TYPE == 1// 硬件iic
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int ret = hw_iic_init(0);
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#else
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int ret = soft_iic_init(0);
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#endif
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xlog("init iic result:%d\n", ret); //返回0成功
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}
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/**
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* @brief 从FM176XX芯片读取一个字节的寄存器值。
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* @param address [in] 目标寄存器的地址。
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* @param reg_data [out] 指向用于存储读取数据的字节的指针。
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* @return 操作状态，SUCCESS表示成功。
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* @details
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* 接口：iic
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*/
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unsigned char GetReg(unsigned char address, unsigned char *reg_data){
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soft_iic_start(0);
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if (0 == soft_iic_tx_byte(0, FM176_WRITE_ADDR)) {
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soft_iic_stop(0);
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return FAIL;
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}
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if (0 == soft_iic_tx_byte(0, address)) {
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soft_iic_stop(0);
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return FAIL;
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}
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soft_iic_start(0);
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if (0 == soft_iic_tx_byte(0, FM176_READ_ADDR)) {
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soft_iic_stop(0);
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return FAIL;
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}
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*reg_data = soft_iic_rx_byte(0, 0);
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soft_iic_stop(0);
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return SUCCESS;
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}
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/**
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* @brief 向FM176XX芯片写入一个字节的寄存器值。
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* @param address [in] 目标寄存器的地址。
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* @param reg_data [in] 要写入的字节数据。
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* @return 操作状态，SUCCESS表示成功。
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* @details
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* 接口：iic
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*/
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unsigned char SetReg(unsigned char address, unsigned char reg_data){
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soft_iic_start(0);
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if (0 == soft_iic_tx_byte(0, FM176_WRITE_ADDR)) {
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soft_iic_stop(0);
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return FAIL;
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}
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if (0 == soft_iic_tx_byte(0, address)) {
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soft_iic_stop(0);
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return FAIL;
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}
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if (0 == soft_iic_tx_byte(0, reg_data)) {
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soft_iic_stop(0);
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return FAIL;
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}
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soft_iic_stop(0);
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return SUCCESS;
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}
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/**
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* @brief 软件复位，命令：0x1F
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*
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* @return unsigned char
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*/
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unsigned char FM176XX_SoftReset(void){
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return SetReg(REG_COMMAND, 0x1F);
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}
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#elif INTERFACE_TYPE == 1 //spi
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unsigned char FM176XX_HardInit(void){
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gpio_set_direction(IO_PORTA_05,0); //nss
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gpio_set_output_value(IO_PORTA_05, 1); //初始设置为高
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spi_open(SPI1); //初始化spi1：PC3、PC5
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return SUCCESS;
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}
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/**
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* @brief 从FM176XX芯片读取一个字节的寄存器值。
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* @param address [in] 目标寄存器的地址。
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* @param reg_data [out] 指向用于存储读取数据的字节的指针。
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* @return 操作状态，SUCCESS表示成功。
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* @details
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* 接口：SPI
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*/
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unsigned char GetReg(unsigned char address, unsigned char *reg_data){
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unsigned char addr_byte;
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int err;
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// 准备地址字节：地址左移1位，Bit0置1表示读
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addr_byte = (address << 1) | 0x01;
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// ---- 开始SPI事务 ----
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gpio_set_output_value(IO_PORTA_05,0);
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// 1. 发送地址字节，忽略接收到的数据
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spi_send_byte(SPI1, addr_byte);
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asm("nop");
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// 2. 接收数据字节 (通过发送一个Dummy Byte 0xFF 来产生时钟)
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*reg_data = spi_recv_byte(SPI1, &err);
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asm("nop");
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// ---- 结束SPI事务 ----
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gpio_set_output_value(IO_PORTA_05,1);
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if (err != 0) {
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xlog("GetReg error\n");
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return FAIL;
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}
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return SUCCESS;
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}
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/**
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* @brief 向FM176XX芯片写入一个字节的寄存器值。
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* @param address [in] 目标寄存器的地址。
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* @param reg_data [in] 要写入的字节数据。
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* @return 操作状态，SUCCESS表示成功。
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* @details
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* 接口：SPI
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*/
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unsigned char SetReg(unsigned char address, unsigned char reg_data){
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unsigned char addr_byte = (address << 1) & 0xFE; // Bit0=0 for write
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int err1, err2;
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gpio_set_output_value(IO_PORTA_05,0); // <<-- CS拉低，开始事务
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err1 = spi_send_byte(SPI1, addr_byte); // 发送地址
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asm("nop");
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err2 = spi_send_byte(SPI1, reg_data); // 发送数据
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asm("nop");
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gpio_set_output_value(IO_PORTA_05,1); // <<-- CS拉高，结束事务
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if (err1 != 0 || err2 != 0) {
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return FAIL;
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}
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return SUCCESS;
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}
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/**
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* @brief 软件复位，命令：0x1F
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*
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* @return unsigned char
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*/
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unsigned char FM176XX_SoftReset(void){
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return SetReg(REG_COMMAND, 0x1F);
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}
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#elif INTERFACE_TYPE == 2 //uart
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#endif
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void rfid_delay_ms(unsigned int ms){
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// delay(ms);
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os_time_dly(ms/10);
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}
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