altos/stm: Change ao_spi_send_sync definition to take const source

Provides for a bit better error checking.

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

diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h
index 25b435879b3fbab71e5625b3a2ddebaaf2586fca..8393898de33d47b0272574eb3e8e591048ad41a9 100644 (file)
--- a/src/stm/ao_arch_funcs.h
+++ b/src/stm/ao_arch_funcs.h
@@ -80,7 +80,7 @@ void
 ao_spi_send_fixed(uint8_t value, uint16_t len, uint8_t spi_index);
 
 void
-ao_spi_send_sync(void *block, uint16_t len, uint8_t spi_index);
+ao_spi_send_sync(const void *block, uint16_t len, uint8_t spi_index);
 
 static inline void
 ao_spi_send_byte(uint8_t byte, uint8_t spi_index)

diff --git a/src/stm/ao_spi_stm.c b/src/stm/ao_spi_stm.c
index 7eaa392418438ea56c9c7c4ae774ef6a52b0bed1..8ed820ebfb71fd0aad831d41c804e6743911c261 100644 (file)
--- a/src/stm/ao_spi_stm.c
+++ b/src/stm/ao_spi_stm.c
@@ -154,7 +154,7 @@ ao_spi_send_fixed(uint8_t value, uint16_t len, uint8_t spi_index)
 }
 
 void
-ao_spi_send_sync(void *block, uint16_t len, uint8_t spi_index)
+ao_spi_send_sync(const void *block, uint16_t len, uint8_t spi_index)
 {
        uint8_t         *b = block;
        struct stm_spi  *stm_spi = ao_spi_stm_info[AO_SPI_INDEX(spi_index)].stm_spi;