Diff: api/SPI.h

Revision:

567:536c9fb088a0

Parent:

556:a1b9575155a3

Child:

568:24a7119bd73a

--- a/api/SPI.h	Tue Jun 09 15:30:08 2015 +0100
+++ b/api/SPI.h	Wed Jun 10 10:00:08 2015 +0100
@@ -123,7 +123,7 @@
      * @param event     The logical OR of events to modify
      * @return Zero if the transfer has started, or -1 if SPI peripheral is busy
      */
-    virtual int transfer(uint8_t *tx_buffer, int tx_length, uint8_t *rx_buffer, int rx_length, const event_callback_t& callback, int event = SPI_EVENT_COMPLETE) {
+    virtual int transfer(const uint8_t *tx_buffer, int tx_length, uint8_t *rx_buffer, int rx_length, const event_callback_t& callback, int event = SPI_EVENT_COMPLETE) {
         return transfer(tx_buffer, tx_length, rx_buffer, rx_length, 8, callback, event);
     }
 
@@ -139,7 +139,7 @@
      * @param event     The logical OR of events to modify
      * @return Zero if the transfer has started, or -1 if SPI peripheral is busy
      */
-    virtual int transfer(uint16_t *tx_buffer, int tx_length, uint16_t *rx_buffer, int rx_length, const event_callback_t& callback, int event = SPI_EVENT_COMPLETE) {
+    virtual int transfer(const uint16_t *tx_buffer, int tx_length, uint16_t *rx_buffer, int rx_length, const event_callback_t& callback, int event = SPI_EVENT_COMPLETE) {
         return transfer(tx_buffer, tx_length, rx_buffer, rx_length, 16, callback, event);
     }
 
@@ -155,7 +155,7 @@
      * @param event     The logical OR of events to modify
      * @return Zero if the transfer has started, or -1 if SPI peripheral is busy
      */
-    virtual int transfer(uint32_t *tx_buffer, int tx_length, uint32_t *rx_buffer, int rx_length, const event_callback_t& callback, int event = SPI_EVENT_COMPLETE)  {
+    virtual int transfer(const uint32_t *tx_buffer, int tx_length, uint32_t *rx_buffer, int rx_length, const event_callback_t& callback, int event = SPI_EVENT_COMPLETE)  {
         return transfer((void *)tx_buffer, tx_length, (void *)rx_buffer, rx_length, 32, callback, event);
     }
 
@@ -197,7 +197,7 @@
      * @param event     The logical OR of events to modify
      * @return Zero if the transfer has started or was added to the queue, or -1 if SPI peripheral is busy/buffer is full
     */
-    int transfer(void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event);
+    int transfer(const void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event);
 
     /**
      *
@@ -212,7 +212,7 @@
      * @param event     The logical OR of events to modify
      * @return Zero if a transfer was added to the queue, or -1 if the queue is full
     */
-    int queue_transfer(void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event);
+    int queue_transfer(const void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event);
 
     /** Configures a callback, spi peripheral and initiate a new transfer
      *
@@ -226,7 +226,7 @@
      * @param callback  The event callback function
      * @param event     The logical OR of events to modify
     */
-    void start_transfer(void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event);
+    void start_transfer(const void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event);
 
 #if TRANSACTION_QUEUE_SIZE_SPI