[BSP][ls1c]新增PIN接口

将龙芯1c库中的gpio接口重新封装为RTT统一标准的pin接口

bsp/ls1cdev/drivers/drv_gpio.c

+/*
+ * File      : drv_gpio.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-11-24     Ϊ       first version
+ */
+
+#include <rtthread.h>
+#include <drivers/pin.h>
+#include "../libraries/ls1c_gpio.h"
+
+
+void ls1c_pin_mode(struct rt_device *device, rt_base_t pin, rt_base_t mode)
+{
+    unsigned int gpio = pin;
+    
+    if (PIN_MODE_OUTPUT == mode)
+    {
+        gpio_init(gpio, gpio_mode_output);
+    }
+    else
+    {
+        gpio_init(gpio, gpio_mode_input);
+    }
+
+    return ;
+}
+
+
+void ls1c_pin_write(struct rt_device *device, rt_base_t pin, rt_base_t value)
+{
+    unsigned int gpio = pin;
+    
+    if (PIN_LOW == value)
+    {
+        gpio_set(gpio, gpio_level_low);
+    }
+    else
+    {
+        gpio_set(gpio, gpio_level_high);
+    }
+
+    return ;
+}
+
+
+int ls1c_pin_read(struct rt_device *device, rt_base_t pin)
+{
+    unsigned int gpio = pin;
+    int value = PIN_LOW;
+
+    if (0 == gpio_get(gpio))
+    {
+        value = PIN_LOW;
+    }
+    else
+    {
+        value = PIN_HIGH;
+    }
+
+    return value;
+}
+
+
+const static struct rt_pin_ops _ls1c_pin_ops = 
+{
+    ls1c_pin_mode,
+    ls1c_pin_write,
+    ls1c_pin_read,
+};
+
+
+int hw_pin_init(void)
+{
+    rt_device_pin_register("pin", &_ls1c_pin_ops, RT_NULL);
+    return 0;
+}
+INIT_BOARD_EXPORT(hw_pin_init);
+
+

bsp/ls1cdev/drivers/drv_gpio.h

+/*
+ * File      : drv_gpio.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-11-24     ÇÚΪ±¾       first version
+ */
+
+#ifndef LS1C_DRV_GPIO_H
+#define LS1C_DRV_GPIO_H
+
+
+int hw_pin_init(void);
+
+
+#endif
+

bsp/ls1cdev/rtconfig.h

@@ -235,6 +235,9 @@
 #define RT_USING_I2C_BITOPS
 
 
+#define RT_USING_PIN
+
+
 // </RDTConfigurator>
 
 #endif