spi: Put argument of macro SPI_SWAP_DATA_TX/RX in parentheses
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@@ -41,11 +41,11 @@ extern "C"
*
* Then points tx_buffer to ``&data``.
*
- * @param data Data to be sent, can be uint8_t, uint16_t or uint32_t. @param
- * len Length of data to be sent, since the SPI peripheral sends from the MSB,
- * this helps to shift the data to the MSB.
+ * @param DATA Data to be sent, can be uint8_t, uint16_t or uint32_t.
+ * @param LEN Length of data to be sent, since the SPI peripheral sends from
+ * the MSB, this helps to shift the data to the MSB.
*/
-#define SPI_SWAP_DATA_TX(data, len) __builtin_bswap32((uint32_t)data<<(32-len))
+#define SPI_SWAP_DATA_TX(DATA, LEN) __builtin_bswap32((uint32_t)(DATA)<<(32-(LEN)))
/**
* Transform received data of length <= 32 bits to the format of an unsigned integer.
@@ -54,11 +54,11 @@ extern "C"
*
* uint16_t data = SPI_SWAP_DATA_RX(*(uint32_t*)t->rx_data, 15);
*
- * @param data Data to be rearranged, can be uint8_t, uint16_t or uint32_t.
- * @param len Length of data received, since the SPI peripheral writes from
+ * @param DATA Data to be rearranged, can be uint8_t, uint16_t or uint32_t.
+ * @param LEN Length of data received, since the SPI peripheral writes from
* the MSB, this helps to shift the data to the LSB.
*/
-#define SPI_SWAP_DATA_RX(data, len) (__builtin_bswap32(data)>>(32-len))
+#define SPI_SWAP_DATA_RX(DATA, LEN) (__builtin_bswap32(DATA)>>(32-(LEN)))
/**
* @brief This is a configuration structure for a SPI bus.
