X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Flpc%2Fao_spi_lpc.c;h=bc8f9c690cbcde29a3220c3d864ec9b4b03130c3;hb=e5dd00ef0014364fc059970cc020f209b3b16cf8;hp=c3587698e1d26f55ac1b7b583b2ab76f7707b6ed;hpb=c1f01cd4406063191a51cb68fc4634eabfc60fc2;p=fw%2Faltos

diff --git a/src/lpc/ao_spi_lpc.c b/src/lpc/ao_spi_lpc.c
index c3587698..bc8f9c69 100644
--- a/src/lpc/ao_spi_lpc.c
+++ b/src/lpc/ao_spi_lpc.c
@@ -21,8 +21,6 @@ static uint8_t		ao_spi_mutex[LPC_NUM_SPI];
 
 static struct lpc_ssp * const ao_lpc_ssp[LPC_NUM_SPI] = { &lpc_ssp0, &lpc_ssp1 };
 
-static uint8_t	spi_dev_null;
-
 #define tx_busy(lpc_ssp) (lpc_ssp->sr & ((1 << LPC_SSP_SR_BSY) | (1 << LPC_SSP_SR_TNF))) != (1 << LPC_SSP_SR_TNF)
 #define rx_busy(lpc_ssp) (lpc_ssp->sr & ((1 << LPC_SSP_SR_BSY) | (1 << LPC_SSP_SR_RNE))) != (1 << LPC_SSP_SR_RNE)
 
@@ -42,12 +40,12 @@ static uint8_t	spi_dev_null;
 			/* recv a byte */				\
 			get lpc_ssp->dr;				\
 		}							\
-	} while (0);
+	} while (0)
 
 void
-ao_spi_send(void *block, uint16_t len, uint8_t id)
+ao_spi_send(const void *block, uint16_t len, uint8_t id)
 {
-	uint8_t	*b = block;
+	const uint8_t	*b = block;
 	struct lpc_ssp *lpc_ssp = ao_lpc_ssp[id];
 
 	spi_loop(len, *b++, (void));
@@ -71,9 +69,9 @@ ao_spi_recv(void *block, uint16_t len, uint8_t id)
 }
 
 void
-ao_spi_duplex(void *out, void *in, uint16_t len, uint8_t id)
+ao_spi_duplex(const void *out, void *in, uint16_t len, uint8_t id)
 {
-	uint8_t	*o = out;
+	const uint8_t	*o = out;
 	uint8_t	*i = in;
 	struct lpc_ssp *lpc_ssp = ao_lpc_ssp[id];