Merge pull request #137 from whj4674672/master

【修改】eth 复位引脚使用新的 pin 框架

Author: Guozhanxin

libraries/Kconfig

@@ -255,15 +255,13 @@ menu "On-chip Peripheral"
         default n        
         select RT_USING_LWIP
         if BSP_USING_ETH
-            comment "Notice: PA3 --> 3"
             config ETH_RESET_PIN
-                int "ETH RESET PIN"
-                range 0 175
-                default 3
+                string "ETH RESET PIN"
+                default "PA.3"
         endif
         if BSP_USING_ETH
             choice
-                prompt "Choose Eth PHY"
+                prompt "Choose ETH PHY"
                 default PHY_USING_LAN8720A
                         config PHY_USING_LAN8720A
                     bool "USING LAN8720A"

libraries/drivers/drv_eth.c

@@ -58,6 +58,7 @@ static ETH_HandleTypeDef EthHandle;
 static ETH_TxPacketConfig TxConfig;
 static struct rt_stm32_eth stm32_eth_device;
 static uint8_t PHY_ADDR = 0x1F;
+static rt_uint32_t reset_pin = 0;
 
 #if defined ( __ICCARM__ ) /*!< IAR Compiler */
 #pragma location=0x30040000
@@ -106,9 +107,9 @@ static void dump_hex(const rt_uint8_t *ptr, rt_size_t buflen)
 
 static void phy_reset(void)
 {
-    rt_pin_write(ETH_RESET_PIN, PIN_LOW);
+    rt_pin_write(reset_pin, PIN_LOW);
     rt_thread_mdelay(50);
-    rt_pin_write(ETH_RESET_PIN, PIN_HIGH);
+    rt_pin_write(reset_pin, PIN_HIGH);
 }
 
 
@@ -499,9 +500,10 @@ static void phy_monitor_thread_entry(void *parameter)
 static int rt_hw_stm32_eth_init(void)
 {
     rt_err_t state = RT_EOK;
+    reset_pin = rt_pin_get(ETH_RESET_PIN);
 
-    rt_pin_mode(ETH_RESET_PIN, PIN_MODE_OUTPUT);
-    rt_pin_write(ETH_RESET_PIN, PIN_HIGH);
+    rt_pin_mode(reset_pin, PIN_MODE_OUTPUT);
+    rt_pin_write(reset_pin, PIN_HIGH);
 
     stm32_eth_device.ETH_Speed = ETH_SPEED_100M;
     stm32_eth_device.ETH_Mode = ETH_FULLDUPLEX_MODE;