3d9d6198c8
How To Run:
see TencentOS-tiny\board\ALPHA_I.MX_emmc_256ddr\README.md
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1. VFP support
2. fault diagnosis support
3. qemu vexpress ca9 support
4. raspberry pi support
5. SMP support
140 lines
4.4 KiB
C
140 lines
4.4 KiB
C
/***************************************************************
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Copyright © zuozhongkai Co., Ltd. 1998-2019. All rights reserved.
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文件名 : bsp_ap3216c.c
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作者 : 左忠凯
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版本 : V1.0
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描述 : AP3216C驱动文件。
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其他 : 无
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论坛 : www.openedv.com
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日志 : 初版V1.0 2019/3/26 左忠凯创建
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***************************************************************/
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#include "bsp_ap3216c.h"
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#include "bsp_i2c.h"
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#include "bsp_delay.h"
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#include "cc.h"
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#include "printf.h"
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/*
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* @description : 初始化AP3216C
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* @param : 无
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* @return : 0 成功，其他值 错误代码
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*/
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unsigned char ap3216c_init(void)
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{
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unsigned char data = 0;
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/* 1、IO初始化，配置I2C IO属性
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* I2C1_SCL -> UART4_TXD
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* I2C1_SDA -> UART4_RXD
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*/
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IOMUXC_SetPinMux(IOMUXC_UART4_TX_DATA_I2C1_SCL, 1);
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IOMUXC_SetPinMux(IOMUXC_UART4_RX_DATA_I2C1_SDA, 1);
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/*
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*bit 16:0 HYS关闭
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*bit [15:14]: 1 默认47K上拉
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*bit [13]: 1 pull功能
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*bit [12]: 1 pull/keeper使能
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*bit [11]: 0 关闭开路输出
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*bit [7:6]: 10 速度100Mhz
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*bit [5:3]: 110 驱动能力为R0/6
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*bit [0]: 1 高转换率
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*/
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IOMUXC_SetPinConfig(IOMUXC_UART4_TX_DATA_I2C1_SCL, 0x70B0);
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IOMUXC_SetPinConfig(IOMUXC_UART4_RX_DATA_I2C1_SDA, 0X70B0);
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i2c_init(I2C1); /* 初始化I2C1 */
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/* 2、初始化AP3216C */
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ap3216c_writeonebyte(AP3216C_ADDR, AP3216C_SYSTEMCONG, 0X04); /* 复位AP3216C */
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delayms(50); /* AP33216C复位至少10ms */
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ap3216c_writeonebyte(AP3216C_ADDR, AP3216C_SYSTEMCONG, 0X03); /* 开启ALS、PS+IR */
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data = ap3216c_readonebyte(AP3216C_ADDR, AP3216C_SYSTEMCONG); /* 读取刚刚写进去的0X03 */
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if(data == 0X03)
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return 0; /* AP3216C正常 */
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else
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return 1; /* AP3216C失败 */
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}
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/*
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* @description : 向AP3216C写入数据
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* @param - addr: 设备地址
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* @param - reg : 要写入的寄存器
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* @param - data: 要写入的数据
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* @return : 操作结果
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*/
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unsigned char ap3216c_writeonebyte(unsigned char addr,unsigned char reg, unsigned char data)
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{
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unsigned char status=0;
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unsigned char writedata=data;
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struct i2c_transfer masterXfer;
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/* 配置I2C xfer结构体 */
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masterXfer.slaveAddress = addr; /* 设备地址 */
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masterXfer.direction = kI2C_Write; /* 写入数据 */
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masterXfer.subaddress = reg; /* 要写入的寄存器地址 */
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masterXfer.subaddressSize = 1; /* 地址长度一个字节 */
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masterXfer.data = &writedata; /* 要写入的数据 */
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masterXfer.dataSize = 1; /* 写入数据长度1个字节 */
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if(i2c_master_transfer(I2C1, &masterXfer))
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status=1;
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return status;
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}
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/*
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* @description : 从AP3216C读取一个字节的数据
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* @param - addr: 设备地址
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* @param - reg : 要读取的寄存器
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* @return : 读取到的数据。
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*/
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unsigned char ap3216c_readonebyte(unsigned char addr,unsigned char reg)
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{
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unsigned char val=0;
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struct i2c_transfer masterXfer;
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masterXfer.slaveAddress = addr; /* 设备地址 */
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masterXfer.direction = kI2C_Read; /* 读取数据 */
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masterXfer.subaddress = reg; /* 要读取的寄存器地址 */
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masterXfer.subaddressSize = 1; /* 地址长度一个字节 */
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masterXfer.data = &val; /* 接收数据缓冲区 */
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masterXfer.dataSize = 1; /* 读取数据长度1个字节 */
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i2c_master_transfer(I2C1, &masterXfer);
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return val;
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}
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/*
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* @description : 读取AP3216C的数据，读取原始数据，包括ALS,PS和IR, 注意！
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* : 如果同时打开ALS,IR+PS的话两次数据读取的时间间隔要大于112.5ms
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* @param - ir : ir数据
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* @param - ps : ps数据
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* @param - ps : als数据
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* @return : 无。
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*/
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void ap3216c_readdata(unsigned short *ir, unsigned short *ps, unsigned short *als)
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{
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unsigned char buf[6];
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unsigned char i;
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/* 循环读取所有传感器数据 */
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for(i = 0; i < 6; i++)
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{
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buf[i] = ap3216c_readonebyte(AP3216C_ADDR, AP3216C_IRDATALOW + i);
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}
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if(buf[0] & 0X80) /* IR_OF位为1,则数据无效 */
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*ir = 0;
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else /* 读取IR传感器的数据 */
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*ir = ((unsigned short)buf[1] << 2) | (buf[0] & 0X03);
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*als = ((unsigned short)buf[3] << 8) | buf[2]; /* 读取ALS传感器的数据 */
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if(buf[4] & 0x40) /* IR_OF位为1,则数据无效 */
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*ps = 0;
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else /* 读取PS传感器的数据 */
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*ps = ((unsigned short)(buf[5] & 0X3F) << 4) | (buf[4] & 0X0F);
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}
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