ZYNQ连载07-PIN设备

1. 简述

RT-Thread PIN设备
这里参看RT-Thread提供的PIN设备管理接口，简单封装了几个接口函数。

2. 实现

#include "include/drv_gpio.h"
#define LOG_TAG    "drv_gpio"
static XGpioPs xgpiops;void rt_pin_mode(rt_base_t pin, rt_uint8_t mode)
{XGpioPs_Config *xgpiops_config;xgpiops_config = XGpioPs_LookupConfig(XPAR_XGPIOPS_0_DEVICE_ID);if (XST_SUCCESS != XGpioPs_CfgInitialize(&xgpiops, xgpiops_config, xgpiops_config->BaseAddr))log_e("XGpioPs_CfgInitialize fail");switch (mode){case PIN_MODE_OUTPUT:XGpioPs_SetDirectionPin(&xgpiops, pin, 1);XGpioPs_SetOutputEnablePin(&xgpiops, pin, 1);break;case PIN_MODE_INPUT:XGpioPs_SetDirectionPin(&xgpiops, pin, 0);break;default:log_e("XGpioPs_SetDirectionPin fail");break;}
}void rt_pin_write(rt_base_t pin, rt_uint8_t value)
{XGpioPs_WritePin(&xgpiops, pin, value);
}rt_int8_t rt_pin_read(rt_base_t pin)
{return (rt_int8_t)XGpioPs_ReadPin(&xgpiops, pin);
}