#include "gpio_driver.h"
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Gpio_Driver::Gpio_Driver(const char *dev)
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{
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#if (PLATFORM_USED==PLATFORM_ARM)
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/* open gpio */
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fd = open(dev, 0);
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if (fd < 0) {
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qDebug("ERROR: open %s ret=%d\n", dev, fd);
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}
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#endif
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}
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int Gpio_Driver::Gpio_Init(int *lineoff,int linesnum)
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{
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if(lineoff==0 || linesnum==0){
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qDebug("invalid gpio param.\n");
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return -1;
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}
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#if (PLATFORM_USED==PLATFORM_ARM)
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for(int i=0;i<linesnum;i++){
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req.lineoffsets[i] = lineoff[i];
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}
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req.lines = linesnum;
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req.flags = GPIOHANDLE_REQUEST_OUTPUT;
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strcpy(req.consumer_label, "RS T_m");
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int lhfd = ioctl(fd, GPIO_GET_LINEHANDLE_IOCTL, &req);
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if (lhfd < 0) {
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qDebug("ERROR get line handle lhdf=%d \n", lhfd);
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return -1;
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}
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#endif
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return 0;
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}
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int Gpio_Driver::Gpio_Init_In(int *lineoff,int linesnum)
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{
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if(lineoff==0 || linesnum==0){
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qDebug("invalid gpio param.\n");
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return -1;
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}
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#if (PLATFORM_USED==PLATFORM_ARM)
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for(int i=0;i<linesnum;i++){
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req_in.lineoffsets[i] = lineoff[i];
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}
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req_in.lines = linesnum;
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req_in.flags = GPIOHANDLE_REQUEST_INPUT;
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strcpy(req_in.consumer_label, "RS T_m");
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int lhfd = ioctl(fd, GPIO_GET_LINEHANDLE_IOCTL, &req_in);
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if (lhfd < 0) {
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qDebug("ERROR get line handle lhdf=%d \n", lhfd);
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return -1;
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}
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#endif
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return 0;
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}
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int Gpio_Driver::Gpio_SetLevel(int index, bool isHigh)
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{
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#if (PLATFORM_USED==PLATFORM_ARM)
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int ret;
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if(isHigh)
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data.values[index] = 1;
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else
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data.values[index] = 0;
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ret = ioctl (req.fd, GPIOHANDLE_SET_LINE_VALUES_IOCTL, &data);
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if (ret < 0){
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qDebug("ERROR set line value ret=%d ", ret);
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return -1;
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}
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#endif
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return 0;
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}
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int Gpio_Driver::Gpio_GetLevel(int index,int *level)
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{
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#if (PLATFORM_USED==PLATFORM_ARM)
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int ret;
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ret = ioctl (req_in.fd, GPIOHANDLE_GET_LINE_VALUES_IOCTL, &data_in);
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if (ret < 0){
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qDebug("ERROR get line value ret=%d ", ret);
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return -1;
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}
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*level = data_in.values[index];
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#endif
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return 0;
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}
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