altos: Add SPI-based companion board support

[fw/altos] / src / ao_flash.c

diff --git a/src/ao_flash.c b/src/ao_flash.c
index 00e9639869cdf0a0a5b1345cbb3da4c22213c1ff..bb40f6f708b95515d165da8e131031639474593b 100644 (file)
--- a/src/ao_flash.c
+++ b/src/ao_flash.c
@@ -43,19 +43,9 @@ __xdata uint8_t ao_flash_mutex;
        _asm nop _endasm; \
 } while(0)
 
-void ao_flash_cs_low(void)
-{
-       ao_flash_delay();
-       FLASH_CS = 0;
-       ao_flash_delay();
-}
+#define ao_flash_cs_low()      ao_spi_get_bit(FLASH_CS)
 
-void ao_flash_cs_high(void)
-{
-       ao_flash_delay();
-       FLASH_CS = 1;
-       ao_flash_delay();
-}
+#define ao_flash_cs_high()     ao_spi_put_bit(FLASH_CS)
 
 struct ao_flash_instruction {
        uint8_t instruction;