altos/lpc: Declare SPI send parameters as const

This matches STM

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/lpc/ao_arch_funcs.h b/src/lpc/ao_arch_funcs.h
index 21a7a8e5702f779fd2ddce6e164e89a8bf77ab9e..ff8a184d28198252bbff6787456d9cb9491f9fee 100644 (file)
--- a/src/lpc/ao_arch_funcs.h
+++ b/src/lpc/ao_arch_funcs.h
@@ -201,7 +201,7 @@ void
 ao_spi_put(uint8_t spi_index);
 
 void
-ao_spi_send(void *block, uint16_t len, uint8_t spi_index);
+ao_spi_send(const void *block, uint16_t len, uint8_t spi_index);
 
 void
 ao_spi_send_fixed(uint8_t value, uint16_t len, uint8_t spi_index);
@@ -210,7 +210,7 @@ void
 ao_spi_recv(void *block, uint16_t len, uint8_t spi_index);
 
 void
-ao_spi_duplex(void *out, void *in, uint16_t len, uint8_t spi_index);
+ao_spi_duplex(const void *out, void *in, uint16_t len, uint8_t spi_index);
 
 extern uint16_t        ao_spi_speed[LPC_NUM_SPI];
 

diff --git a/src/lpc/ao_spi_lpc.c b/src/lpc/ao_spi_lpc.c
index e72b8286634adfbb0fe3b8e3f97bcfbbf2c92d3e..bc8f9c690cbcde29a3220c3d864ec9b4b03130c3 100644 (file)
--- a/src/lpc/ao_spi_lpc.c
+++ b/src/lpc/ao_spi_lpc.c
@@ -43,9 +43,9 @@ static struct lpc_ssp * const ao_lpc_ssp[LPC_NUM_SPI] = { &lpc_ssp0, &lpc_ssp1 }
        } 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));
@@ -69,9 +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];