diff options
| author | hathach <[email protected]> | 2023-07-07 12:27:18 +0700 |
|---|---|---|
| committer | hathach <[email protected]> | 2023-07-07 12:27:18 +0700 |
| commit | 4c156100fafa682407f1a9a459d8b8800a029446 (patch) | |
| tree | 3ac906f69a3193821a3719e330721ecb1afbb69c /src/common | |
| parent | 4bbacb10089856fd6cd6e4c54da8ab2dc8575c60 (diff) | |
use unaligned access read for hw fifo
Diffstat (limited to 'src/common')
| -rw-r--r-- | src/common/tusb_common.h | 18 | ||||
| -rw-r--r-- | src/common/tusb_mcu.h | 12 |
2 files changed, 23 insertions, 7 deletions
diff --git a/src/common/tusb_common.h b/src/common/tusb_common.h index 957491aa9..576cb123f 100644 --- a/src/common/tusb_common.h +++ b/src/common/tusb_common.h @@ -260,11 +260,21 @@ TU_ATTR_ALWAYS_INLINE static inline void tu_unaligned_write16(void* mem, uint16_ #else // MCU that could access unaligned memory natively -TU_ATTR_ALWAYS_INLINE static inline uint32_t tu_unaligned_read32 (const void* mem) { return *((uint32_t const *) mem); } -TU_ATTR_ALWAYS_INLINE static inline uint16_t tu_unaligned_read16 (const void* mem) { return *((uint16_t const *) mem); } +TU_ATTR_ALWAYS_INLINE static inline uint32_t tu_unaligned_read32(const void *mem) { + return *((uint32_t const *) mem); +} + +TU_ATTR_ALWAYS_INLINE static inline uint16_t tu_unaligned_read16(const void *mem) { + return *((uint16_t const *) mem); +} -TU_ATTR_ALWAYS_INLINE static inline void tu_unaligned_write32 (void* mem, uint32_t value ) { *((uint32_t*) mem) = value; } -TU_ATTR_ALWAYS_INLINE static inline void tu_unaligned_write16 (void* mem, uint16_t value ) { *((uint16_t*) mem) = value; } +TU_ATTR_ALWAYS_INLINE static inline void tu_unaligned_write32(void *mem, uint32_t value) { + *((uint32_t *) mem) = value; +} + +TU_ATTR_ALWAYS_INLINE static inline void tu_unaligned_write16(void *mem, uint16_t value) { + *((uint16_t *) mem) = value; +} #endif diff --git a/src/common/tusb_mcu.h b/src/common/tusb_mcu.h index 496ebfc85..89f89182e 100644 --- a/src/common/tusb_mcu.h +++ b/src/common/tusb_mcu.h @@ -34,10 +34,16 @@ //------------- Unaligned Memory Access -------------// -// ARMv7+ (M3-M7, M23-M33) can access unaligned memory -#if (defined(__ARM_ARCH) && (__ARM_ARCH >= 7)) - #define TUP_ARCH_STRICT_ALIGN 0 +#ifdef __ARM_ARCH + // ARM Architecture set __ARM_FEATURE_UNALIGNED to 1 for mcu supports unaligned access + #if defined(__ARM_FEATURE_UNALIGNED) && __ARM_FEATURE_UNALIGNED == 1 + #define TUP_ARCH_STRICT_ALIGN 0 + #else + #define TUP_ARCH_STRICT_ALIGN 1 + #endif #else + // TODO default to strict align for others + // Should investigate other architecture such as risv, xtensa, mips for optimal setting #define TUP_ARCH_STRICT_ALIGN 1 #endif |