altos/stmf0: Add spi format configuration options

[fw/altos] / src / stmf0 / ao_arch_funcs.h

diff --git a/src/stmf0/ao_arch_funcs.h b/src/stmf0/ao_arch_funcs.h
index defe259896e67b4eaf0f78ae0be48808dddcbede..5a9cf6b5258f87620bf70e9965f5b616431f383b 100644 (file)
--- a/src/stmf0/ao_arch_funcs.h
+++ b/src/stmf0/ao_arch_funcs.h
@@ -74,6 +74,17 @@ ao_spi_speed(uint32_t hz)
 #define AO_SPI_INDEX(id)       ((id) & AO_SPI_INDEX_MASK)
 #define AO_SPI_CONFIG(id)      ((id) & AO_SPI_CONFIG_MASK)
 
+#define AO_SPI_CPOL_BIT                4
+#define AO_SPI_CPHA_BIT                5
+#define AO_SPI_CPOL(id)                ((uint32_t) (((id) >> AO_SPI_CPOL_BIT) & 1))
+#define AO_SPI_CPHA(id)                ((uint32_t) (((id) >> AO_SPI_CPHA_BIT) & 1))
+
+#define AO_SPI_MAKE_MODE(pol,pha)      (((pol) << AO_SPI_CPOL_BIT) | ((pha) << AO_SPI_CPHA_BIT))
+#define AO_SPI_MODE_0          AO_SPI_MAKE_MODE(0,0)
+#define AO_SPI_MODE_1          AO_SPI_MAKE_MODE(0,1)
+#define AO_SPI_MODE_2          AO_SPI_MAKE_MODE(1,0)
+#define AO_SPI_MODE_3          AO_SPI_MAKE_MODE(1,1)
+
 uint8_t
 ao_spi_try_get(uint8_t spi_index, uint32_t speed, uint8_t task_id);