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-rw-r--r--libmaple/bitband.h38
1 files changed, 10 insertions, 28 deletions
diff --git a/libmaple/bitband.h b/libmaple/bitband.h
index 076335f..b817f73 100644
--- a/libmaple/bitband.h
+++ b/libmaple/bitband.h
@@ -35,18 +35,7 @@
#define BB_PERI_REF 0x40000000
#define BB_PERI_BASE 0x42000000
-static inline uint32* __bb_addr(void*, uint32, uint32, uint32);
-static inline __io uint32* __bb_addrv(__io void*, uint32, uint32, uint32);
-
-/**
- * @brief Obtain a pointer to the bit-band address corresponding to a
- * bit in an SRAM address.
- * @param address Address in the bit-banded SRAM region
- * @param bit Bit in address to bit-band
- */
-static inline uint32* bb_sramp(void *address, uint32 bit) {
- return __bb_addr(address, bit, BB_SRAM_BASE, BB_SRAM_REF);
-}
+static inline __io uint32* __bb_addr(__io void*, uint32, uint32, uint32);
/**
* @brief Obtain a pointer to the bit-band address corresponding to a
@@ -54,8 +43,8 @@ static inline uint32* bb_sramp(void *address, uint32 bit) {
* @param address Address in the bit-banded SRAM region
* @param bit Bit in address to bit-band
*/
-static inline __io uint32* bb_srampv(__io void *address, uint32 bit) {
- return __bb_addrv(address, bit, BB_SRAM_BASE, BB_SRAM_REF);
+static inline __io uint32* bb_sramp(__io void *address, uint32 bit) {
+ return __bb_addr(address, bit, BB_SRAM_BASE, BB_SRAM_REF);
}
/**
@@ -64,20 +53,13 @@ static inline __io uint32* bb_srampv(__io void *address, uint32 bit) {
* @param address Address in the bit-banded peripheral region
* @param bit Bit in address to bit-band
*/
-static inline __io uint32* bb_peripv(__io void *address, uint32 bit) {
- return __bb_addrv(address, bit, BB_PERI_BASE, BB_PERI_REF);
-}
-
-static inline uint32* __bb_addr(void *address,
- uint32 bit,
- uint32 bb_base,
- uint32 bb_ref) {
- return (uint32*)(bb_base + ((uint32)address - bb_ref) * 32 + bit * 4);
+static inline __io uint32* bb_perip(__io void *address, uint32 bit) {
+ return __bb_addr(address, bit, BB_PERI_BASE, BB_PERI_REF);
}
-static inline __io uint32* __bb_addrv(__io void *address,
- uint32 bit,
- uint32 bb_base,
- uint32 bb_ref) {
- return (__io uint32*)__bb_addr((void*)address, bit, bb_base, bb_ref);
+static inline __io uint32* __bb_addr(__io void *address,
+ uint32 bit,
+ uint32 bb_base,
+ uint32 bb_ref) {
+ return (__io uint32*)(bb_base + ((uint32)address - bb_ref) * 32 + bit * 4);
}