From 1641dd7e8d32192c322872dfd265e5998771c7c3 Mon Sep 17 00:00:00 2001
From: mazgch <mazgch@gmail.com>
Date: Fri, 20 Feb 2015 13:38:11 +0100
Subject: [PATCH] enable the additional uart 7&8 of the STM32F439

---
 .../TARGET_UBLOX_C029/PeripheralNames.h       |  4 +-
 .../TARGET_UBLOX_C029/PeripheralPins.c        |  2 +
 .../TARGET_STM/TARGET_STM32F4/serial_api.c    | 56 ++++++++++++++++++-
 3 files changed, 59 insertions(+), 3 deletions(-)

diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/PeripheralNames.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/PeripheralNames.h
index c2de03ab09..47f03095d0 100644
--- a/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/PeripheralNames.h
+++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/PeripheralNames.h
@@ -53,7 +53,9 @@ typedef enum {
     UART_3 = (int)USART3_BASE,
     UART_4 = (int)UART4_BASE,
     UART_5 = (int)UART5_BASE,
-    UART_6 = (int)USART6_BASE
+    UART_6 = (int)USART6_BASE,
+    UART_7 = (int)UART7_BASE,
+    UART_8 = (int)UART8_BASE
 } UARTName;
 
 #define STDIO_UART_TX  PD_8
diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/PeripheralPins.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/PeripheralPins.c
index b139dafcc6..63720ea40b 100644
--- a/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/PeripheralPins.c
+++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/PeripheralPins.c
@@ -133,12 +133,14 @@ const PinMap PinMap_PWM[] = {
 const PinMap PinMap_UART_TX[] = {
     {PA_9,  UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
     {PD_8,  UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PF_7,  UART_7, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_UART7)},
     {NC,    NC,     0}
 };
 
 const PinMap PinMap_UART_RX[] = {
     {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
     {PD_9,  UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PF_6,  UART_7, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_UART7)},
     {NC,    NC,     0}
 };
 
diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/serial_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/serial_api.c
index 3a8535bf5f..c89d1e5302 100644
--- a/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/serial_api.c
+++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/serial_api.c
@@ -37,9 +37,9 @@
 #include <string.h>
 #include "PeripheralPins.h"
 
-#define UART_NUM (6)
+#define UART_NUM (8)
 
-static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0, 0};
+static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0, 0, 0, 0};
 
 static uart_irq_handler irq_handler;
 
@@ -111,6 +111,18 @@ void serial_init(serial_t *obj, PinName tx, PinName rx)
             __USART6_CLK_ENABLE();
             obj->index = 5;
             break;
+#if defined(UART7_BASE)
+        case UART_7:
+            __UART7_CLK_ENABLE();
+            obj->index = 6;
+            break;
+#endif
+#if defined(UART8_BASE)
+        case UART_8:
+            __UART8_CLK_ENABLE();
+            obj->index = 7;
+            break;
+#endif
     }
 
     // Configure the UART pins
@@ -181,6 +193,20 @@ void serial_free(serial_t *obj)
             __USART6_RELEASE_RESET();
             __USART6_CLK_DISABLE();
             break;
+#if defined(UART7_BASE)
+        case UART_7:
+            __UART7_FORCE_RESET();
+            __UART7_RELEASE_RESET();
+            __UART7_CLK_DISABLE();
+            break;
+#endif
+#if defined(UART8_BASE)
+        case UART_8:
+            __UART8_FORCE_RESET();
+            __UART8_RELEASE_RESET();
+            __UART8_CLK_DISABLE();
+            break;
+#endif
     }
     // Configure GPIOs
     pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
@@ -281,6 +307,20 @@ static void uart6_irq(void)
     uart_irq(UART_6, 5);
 }
 
+#if defined(UART7_BASE)
+static void uart7_irq(void) 
+{
+    uart_irq(UART_7, 6);
+}
+#endif
+
+#if defined(UART8_BASE)
+static void uart8_irq(void) 
+{
+    uart_irq(UART_8, 7);
+}
+#endif
+
 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
 {
     irq_handler = handler;
@@ -326,6 +366,18 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
             irq_n = USART6_IRQn;
             vector = (uint32_t)&uart6_irq;
             break;
+#if defined(UART7_BASE)
+        case UART_7:
+            irq_n = UART7_IRQn;
+            vector = (uint32_t)&uart7_irq;
+            break;
+#endif
+#if defined(UART8_BASE)
+        case UART_8:
+            irq_n = UART8_IRQn;
+            vector = (uint32_t)&uart8_irq;
+            break;
+#endif
     }
 
     if (enable) {