From 90a2b166cbcb5ca9a9110d579de30dac804e2f12 Mon Sep 17 00:00:00 2001
From: Rocco Marco Guglielmi <roccomarco.guglielmi@live.com>
Date: Fri, 13 May 2016 12:46:36 +0000
Subject: Added support for UART4 and UART5 in STM32L1xx Category 5 devices

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9476 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.h |  6 ++--
 os/hal/ports/STM32/STM32L1xx/stm32_isr.h      |  5 ++-
 os/hal/ports/STM32/STM32L1xx/stm32_rcc.h      | 50 +++++++++++++++++++++++++++
 3 files changed, 58 insertions(+), 3 deletions(-)

(limited to 'os/hal/ports')

diff --git a/os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.h b/os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.h
index 14966216d..8f4c34efe 100644
--- a/os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.h
+++ b/os/hal/ports/STM32/LLD/USARTv1/hal_uart_lld.h
@@ -226,7 +226,8 @@
 #error "UART4 not present in the selected device"
 #endif
 
-#if !defined(STM32F2XX) && !defined(STM32F4XX)
+#if !defined(STM32F2XX) && !defined(STM32F4XX) && !defined(STM32L151xE)  && \
+    !defined(STM32L152xE) && !defined(STM32L162xE)
 #error "UART4 DMA access not supported in this platform"
 #endif
 #endif /* STM32_UART_USE_UART4 */
@@ -236,7 +237,8 @@
 #error "UART5 not present in the selected device"
 #endif
 
-#if !defined(STM32F2XX) && !defined(STM32F4XX)
+#if !defined(STM32F2XX) && !defined(STM32F4XX) && !defined(STM32L151xE)  && \
+    !defined(STM32L152xE) && !defined(STM32L162xE)
 #error "UART5 DMA access not supported in this platform"
 #endif
 #endif /* STM32_UART_USE_UART5 */
diff --git a/os/hal/ports/STM32/STM32L1xx/stm32_isr.h b/os/hal/ports/STM32/STM32L1xx/stm32_isr.h
index c36a430d2..7275c3a4f 100644
--- a/os/hal/ports/STM32/STM32L1xx/stm32_isr.h
+++ b/os/hal/ports/STM32/STM32L1xx/stm32_isr.h
@@ -75,11 +75,14 @@
 #define STM32_USART1_HANDLER        VectorD4
 #define STM32_USART2_HANDLER        VectorD8
 #define STM32_USART3_HANDLER        VectorDC
+#define STM32_UART4_HANDLER         Vector100
+#define STM32_UART5_HANDLER         Vector105
 
 #define STM32_USART1_NUMBER         37
 #define STM32_USART2_NUMBER         38
 #define STM32_USART3_NUMBER         39
-
+#define STM32_UART4_NUMBER          48
+#define STM32_UART5_NUMBER          49
 /*
  * USB units.
  */
diff --git a/os/hal/ports/STM32/STM32L1xx/stm32_rcc.h b/os/hal/ports/STM32/STM32L1xx/stm32_rcc.h
index d13158c05..55ef32535 100644
--- a/os/hal/ports/STM32/STM32L1xx/stm32_rcc.h
+++ b/os/hal/ports/STM32/STM32L1xx/stm32_rcc.h
@@ -744,6 +744,56 @@
  * @api
  */
 #define rccResetUSART3() rccResetAPB1(RCC_APB1RSTR_USART3RST)
+
+/**
+ * @brief   Enables the UART4 peripheral clock.
+ *
+ * @param[in] lp        low power enable flag
+ *
+ * @api
+ */
+#define rccEnableUART4(lp) rccEnableAPB1(RCC_APB1ENR_UART4EN, lp)
+
+/**
+ * @brief   Disables the UART4 peripheral clock.
+ *
+ * @param[in] lp        low power enable flag
+ *
+ * @api
+ */
+#define rccDisableUART4(lp) rccDisableAPB1(RCC_APB1ENR_UART4EN, lp)
+
+/**
+ * @brief   Resets the UART4 peripheral.
+ *
+ * @api
+ */
+#define rccResetUART4() rccResetAPB1(RCC_APB1RSTR_UART4RST)
+
+/**
+ * @brief   Enables the UART5 peripheral clock.
+ *
+ * @param[in] lp        low power enable flag
+ *
+ * @api
+ */
+#define rccEnableUART5(lp) rccEnableAPB1(RCC_APB1ENR_UART5EN, lp)
+
+/**
+ * @brief   Disables the UART5 peripheral clock.
+ *
+ * @param[in] lp        low power enable flag
+ *
+ * @api
+ */
+#define rccDisableUART5(lp) rccDisableAPB1(RCC_APB1ENR_UART5EN, lp)
+
+/**
+ * @brief   Resets the UART5 peripheral.
+ *
+ * @api
+ */
+#define rccResetUART5() rccResetAPB1(RCC_APB1RSTR_UART5RST)
 /** @} */
 
 /**
-- 
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