altos: Grab SPI mutex until MPU6000 I2C mode is disabled

[fw/altos] / src / stm / ao_arch_funcs.h

diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h
index 1e78cabc5fbadb9a9519aaf9a63f1321a7a6d7a0..6fe86e62c4dc5718a6c159d1cb15e8324423488c 100644 (file)
--- a/src/stm/ao_arch_funcs.h
+++ b/src/stm/ao_arch_funcs.h
@@ -87,13 +87,16 @@ extern uint16_t     ao_spi_speed[STM_NUM_SPI];
 void
 ao_spi_init(void);
 
+#define ao_spi_set_cs(reg,mask) ((reg)->bsrr = ((uint32_t) (mask)) << 16)
+#define ao_spi_clr_cs(reg,mask) ((reg)->bsrr = (mask))
+
 #define ao_spi_get_mask(reg,mask,bus, speed) do {              \
                ao_spi_get(bus, speed);                         \
-               (reg)->bsrr = ((uint32_t) mask) << 16;  \
+               ao_spi_set_cs(reg,mask);                        \
        } while (0)
 
 #define ao_spi_put_mask(reg,mask,bus) do {     \
-               (reg)->bsrr = mask;             \
+               ao_spi_clr_cs(reg,mask);        \
                ao_spi_put(bus);                \
        } while (0)