git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1251 35acf78f-673a-0410-8e92-d51de3d6d3f4

demos/ARMCM3-STM32F103-GCC/Makefile

@@ -68,8 +68,10 @@ CSRC = ${PORTSRC} \
        ${TESTSRC} \
        ${CHIBIOS}/os/io/pal.c \
        ${CHIBIOS}/os/io/serial.c \
+       ${CHIBIOS}/os/io/spi.c \
        ${CHIBIOS}/os/io/platforms/STM32/pal_lld.c \
        ${CHIBIOS}/os/io/platforms/STM32/serial_lld.c \
+       ${CHIBIOS}/os/io/platforms/STM32/spi_lld.c \
        ${CHIBIOS}/os/various/evtimer.c \
        board.c main.c
 

demos/ARMCM3-STM32F103-GCC/board.h

@@ -24,13 +24,11 @@
  * Tricks required to make the TRUE/FALSE declaration inside the library
  * compatible.
  */
-#ifndef __STM32F10x_H
 #undef FALSE
 #undef TRUE
 #include <stm32f10x.h>
 #define FALSE 0
 #define TRUE (!FALSE)
-#endif
 
 /*
  * Uncomment this if you want a 48MHz system clock, else it will be 72MHz.

os/io/platforms/STM32/pal_lld.h

@@ -27,17 +27,11 @@
 #ifndef _PAL_LLD_H_
 #define _PAL_LLD_H_
 
-/*
- * Tricks required to make the TRUE/FALSE declaration inside the library
- * compatible.
- */
-#ifndef __STM32F10x_H
 #undef FALSE
 #undef TRUE
 #include <stm32f10x.h>
 #define FALSE 0
 #define TRUE (!FALSE)
-#endif
 
 /*===========================================================================*/
 /* I/O Ports Types and constants.                                            */

os/io/platforms/STM32/serial_lld.h

@@ -27,17 +27,11 @@
 #ifndef _SERIAL_LLD_H_
 #define _SERIAL_LLD_H_
 
-/*
- * Tricks required to make the TRUE/FALSE declaration inside the library
- * compatible.
- */
-#ifndef __STM32F10x_H
 #undef FALSE
 #undef TRUE
 #include <stm32f10x.h>
 #define FALSE 0
 #define TRUE (!FALSE)
-#endif
 
 /*===========================================================================*/
 /* Driver pre-compile time settings.                                         */

os/io/platforms/STM32/spi_lld.c

@@ -27,11 +27,41 @@
 #include <ch.h>
 #include <spi.h>
 
+#include "nvic.h"
+#include "board.h"
+
+#if USE_STM32_SPI1 || defined(__DOXYGEN__)
+/** @brief SPI1 driver identifier.*/
+SPIDriver SPID1;
+#endif
+
+#if USE_STM32_SPI2 || defined(__DOXYGEN__)
+/** @brief SPI2 driver identifier.*/
+SPIDriver SPID2;
+#endif
+
 /**
  * @brief Low level SPI driver initialization.
  */
 void spi_lld_init(void) {
 
+#if USE_STM32_SPI1
+  spiObjectInit(&SPID1);
+  SPID1.spd_spi = SPI1;
+  SPID1.spd_dmarx = DMA1_Channel2;
+  SPID1.spd_dmatx = DMA1_Channel3;
+  RCC->APB2ENR |= RCC_APB2ENR_SPI1EN;
+  GPIOA->CRH = (GPIOA->CRH & 0x000FFFFF) | 0xB4B00000;
+#endif
+
+#if USE_STM32_SPI2
+  spiObjectInit(&SPID2);
+  SPID2.spd_spi = SPI2;
+  SPID2.spd_dmarx = DMA1_Channel4;
+  SPID2.spd_dmatx = DMA1_Channel5;
+  RCC->APB1ENR |= RCC_APB1ENR_SPI2EN;
+  GPIOB->CRL = (GPIOB->CRL & 0x000FFFFF) | 0xB4B00000;
+#endif
 }
 
 /**

os/io/platforms/STM32/spi_lld.h

@@ -27,19 +27,32 @@
 #ifndef _SPI_LLD_H_
 #define _SPI_LLD_H_
 
+#undef FALSE
+#undef TRUE
+#include <stm32f10x.h>
+#define FALSE 0
+#define TRUE (!FALSE)
+
 /*===========================================================================*/
 /* Driver pre-compile time settings.                                         */
 /*===========================================================================*/
 
 /**
- * @brief Enables the mutual exclusion APIs on the SPI bus.
+ * @brief SPI1 driver enable switch.
+ * @details If set to @p TRUE the support for SPI is included.
+ * @note The default is @p TRUE.
  */
-#if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#if !defined(USE_STM32_SPI1) || defined(__DOXYGEN__)
-#define SPI_USE_MUTUAL_EXCLUSION    TRUE
+#define USE_STM32_SPI1              TRUE
 #endif
 
-#if SPI_USE_MUTUAL_EXCLUSION && !CH_USE_MUTEXES && !CH_USE_SEMAPHORES
+/**
-#error "SPI_USE_MUTUAL_EXCLUSION requires CH_USE_MUTEXES and/or CH_USE_SEMAPHORES"
+ * @brief SPI1 driver enable switch.
+ * @details If set to @p TRUE the support for SPI is included.
+ * @note The default is @p TRUE.
+ */
+#if !defined(USE_STM32_SPI2) || defined(__DOXYGEN__)
+#define USE_STM32_SPI2              TRUE
 #endif
 
 /*===========================================================================*/
@@ -50,9 +63,9 @@
  * @brief Driver state machine possible states.
  */
 typedef enum {
-  SPI_UNINIT = 0,//!< SPI_UNINIT
+  SPI_UNINIT = 0,
-  SPI_IDLE = 1,  //!< SPI_IDLE
+  SPI_IDLE = 1,
-  SPI_ACTIVE = 2 //!< SPI_ACTIVE
+  SPI_ACTIVE = 2
 } spistate_t;
 
 /**
@@ -85,16 +98,28 @@ typedef struct {
 #endif
 #endif /* SPI_USE_MUTUAL_EXCLUSION */
   /**
-   * Current configuration data.
+   * @brief Current configuration data.
    */
   const SPIConfig       *spd_config;
   /* End of the mandatory fields.*/
+  SPI_TypeDef           *spd_spi;
+  DMA_Channel_TypeDef   *spd_dmarx;
+  DMA_Channel_TypeDef   *spd_dmatx;
 } SPIDriver;
 
 /*===========================================================================*/
 /* External declarations.                                                    */
 /*===========================================================================*/
 
+/** @cond never*/
+#if USE_STM32_SPI1
+extern SPIDriver SPID1;
+#endif
+
+#if USE_STM32_SPI2
+extern SPIDriver SPID2;
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -106,6 +131,7 @@ extern "C" {
 #ifdef __cplusplus
 }
 #endif
+/** @endcond*/
 
 #endif /* _SPI_LLD_H_ */
 

os/io/spi.h

@@ -27,6 +27,17 @@
 #ifndef _SPI_H_
 #define _SPI_H_
 
+/**
+ * @brief Enables the mutual exclusion APIs on the SPI bus.
+ */
+#if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define SPI_USE_MUTUAL_EXCLUSION    TRUE
+#endif
+
+#if SPI_USE_MUTUAL_EXCLUSION && !CH_USE_MUTEXES && !CH_USE_SEMAPHORES
+#error "SPI_USE_MUTUAL_EXCLUSION requires CH_USE_MUTEXES and/or CH_USE_SEMAPHORES"
+#endif
+
 #include "spi_lld.h"
 
 #ifdef __cplusplus

os/io/templates/spi_lld.h

@@ -50,9 +50,9 @@
  * @brief Driver state machine possible states.
  */
 typedef enum {
-  SPI_UNINIT = 0,//!< SPI_UNINIT
+  SPI_UNINIT = 0,
-  SPI_IDLE = 1,  //!< SPI_IDLE
+  SPI_IDLE = 1,
-  SPI_ACTIVE = 2 //!< SPI_ACTIVE
+  SPI_ACTIVE = 2
 } spistate_t;
 
 /**
@@ -85,7 +85,7 @@ typedef struct {
 #endif
 #endif /* SPI_USE_MUTUAL_EXCLUSION */
   /**
-   * Current configuration data.
+   * @brief Current configuration data.
    */
   const SPIConfig       *spd_config;
   /* End of the mandatory fields.*/