altos/stmf0: Add CRC driver

[fw/altos] / src / stmf0 / stm32f0.h

diff --git a/src/stmf0/stm32f0.h b/src/stmf0/stm32f0.h
index 32864ced9f63ca1e1836d00171399178c14b91a3..ce8ca456d66d2660d7e073f4e3e93db9256d8ccb 100644 (file)
--- a/src/stmf0/stm32f0.h
+++ b/src/stmf0/stm32f0.h
@@ -23,6 +23,7 @@
 typedef volatile uint32_t      vuint32_t;
 typedef volatile void *                vvoid_t;
 typedef volatile uint16_t      vuint16_t;
+typedef volatile uint8_t       vuint8_t;
 
 struct stm_gpio {
        vuint32_t       moder;
@@ -568,6 +569,37 @@ extern struct stm_pwr stm_pwr;
 #define STM_PWR_CSR_SBF                (1)
 #define STM_PWR_CSR_WUF                (0)
 
+struct stm_crc {
+       union {
+               vuint32_t       u32;
+               vuint16_t       u16;
+               vuint8_t        u8;
+       }               dr;
+       vuint32_t       idr;
+       vuint32_t       cr;
+       uint32_t        _0c;
+
+       vuint32_t       init;
+       vuint32_t       pol;
+};
+
+extern struct stm_crc  stm_crc;
+
+#define stm_crc        (*((struct stm_crc *) 0x40023000))
+
+#define STM_CRC_CR_REV_OUT     7
+#define STM_CRC_CR_REV_IN      5
+#define  STM_CRC_CR_REV_IN_NONE                0
+#define  STM_CRC_CR_REV_IN_BY_BYTE     1
+#define  STM_CRC_CR_REV_IN_BY_HALF_WORD        2
+#define  STM_CRC_CR_REV_IN_BY_WORD     3
+#define STM_CRC_CR_POLYSIZE    3
+#define  STM_CRC_CR_POLYSIZE_32                0
+#define  STM_CRC_CR_POLYSIZE_16                1
+#define  STM_CRC_CR_POLYSIZE_8         2
+#define  STM_CRC_CR_POLYSIZE_7         3
+#define STM_CRC_CR_RESET       0
+
 /* The SYSTICK starts at 0xe000e010 */
 
 struct stm_systick {