altos/stm: Add more SPI status register bits

These weren't the original version of the docs that we had.

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

diff --git a/src/stm/stm32l.h b/src/stm/stm32l.h
index 0b6b27983d6a3633d891be36bfdd0f0ecb3063fe..352214ffdbc055c50c8fb44a3cde16dee23ea8d8 100644 (file)
--- a/src/stm/stm32l.h
+++ b/src/stm/stm32l.h
@@ -1359,10 +1359,13 @@ extern struct stm_spi stm_spi1, stm_spi2, stm_spi3;
 #define STM_SPI_CR2_TXDMAEN    1
 #define STM_SPI_CR2_RXDMAEN    0
 
+#define STM_SPI_SR_FRE         8
 #define STM_SPI_SR_BSY         7
 #define STM_SPI_SR_OVR         6
 #define STM_SPI_SR_MODF                5
 #define STM_SPI_SR_CRCERR      4
+#define STM_SPI_SR_UDR         3
+#define STM_SPI_SR_CHSIDE      2
 #define STM_SPI_SR_TXE         1
 #define STM_SPI_SR_RXNE                0