[SPI] Allow to enable HAL module only

Allow HAL SPI module usage without any usage by the core.

Fixes #697

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

cores/arduino/board.h

@@ -14,7 +14,6 @@
 #include "hw_config.h"
 #include "low_power.h"
 #include "rtc.h"
-#include "spi_com.h"
 #include "stm32_eeprom.h"
 #include "timer.h"
 #include "uart.h"

libraries/SPI/src/SPI.h

@@ -14,6 +14,9 @@
 
 #include "Arduino.h"
 #include <stdio.h>
+extern "C" {
+#include "utility/spi_com.h"
+}
 
 // SPI_HAS_TRANSACTION means SPI has
 //   - beginTransaction()

libraries/SPI/src/utility/spi_com.c

@@ -37,14 +37,13 @@
   */
 #include "core_debug.h"
 #include "stm32_def.h"
-#include "spi_com.h"
+#include "utility/spi_com.h"
 #include "PinAF_STM32F1.h"
 #include "pinconfig.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
-#if defined(HAL_SPI_MODULE_ENABLED)
 
 /* Private Functions */
 /**
@@ -405,7 +404,6 @@ spi_status_e spi_transfer(spi_t *obj, uint8_t *tx_buffer,
 
   return ret;
 }
-#endif /* HAL_SPI_MODULE_ENABLED */
 
 #ifdef __cplusplus
 }

libraries/SPI/src/utility/spi_com.h

@@ -46,7 +46,6 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-#if defined(HAL_SPI_MODULE_ENABLED)
 
 /* Exported types ------------------------------------------------------------*/
 
@@ -102,7 +101,6 @@ spi_status_e spi_send(spi_t *obj, uint8_t *Data, uint16_t len, uint32_t Timeout)
 spi_status_e spi_transfer(spi_t *obj, uint8_t *tx_buffer,
                           uint8_t *rx_buffer, uint16_t len, uint32_t Timeout);
 uint32_t spi_getClkFreq(spi_t *obj);
-#endif /* HAL_SPI_MODULE_ENABLED */
 
 #ifdef __cplusplus
 }