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authorZixun LI <[email protected]>2026-04-24 11:19:41 +0200
committerGitHub <[email protected]>2026-04-24 11:19:41 +0200
commit4c7fd70e53b34bf63ef9334f2b5624cac48299f1 (patch)
tree827d5c3ab5e53bdf2ab633a5805715ef05c8e686 /src/common
parent1e644339fd984fd6168b8cc09728d3bb56f2eea2 (diff)
parent5939831f17272571911d089508b458f496a4cc62 (diff)
Merge pull request #3597 from canokeys/big-endian-for-setup-packets
fix #3596: big-endian host support for SETUP packet handling
Diffstat (limited to 'src/common')
-rw-r--r--src/common/tusb_compiler.h9
-rw-r--r--src/common/tusb_types.h17
2 files changed, 26 insertions, 0 deletions
diff --git a/src/common/tusb_compiler.h b/src/common/tusb_compiler.h
index f20834cea..a8971c3df 100644
--- a/src/common/tusb_compiler.h
+++ b/src/common/tusb_compiler.h
@@ -66,6 +66,9 @@
#define TU_LITTLE_ENDIAN (0x12u)
#define TU_BIG_ENDIAN (0x21u)
+#define TU_BITFIELD_LE (0x34u)
+#define TU_BITFIELD_BE (0x43u)
+
/*------------------------------------------------------------------*/
/* Count number of arguments of __VA_ARGS__
* - reference www.stackoverflow.com/questions/2124339/c-preprocessor-va-args-number-of-arguments
@@ -167,8 +170,10 @@
// For TI ARM compiler, __BYTE_ORDER__ is not defined for MSP430 but still LE
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ || defined(__MSP430__)
#define TU_BYTE_ORDER TU_LITTLE_ENDIAN
+ #define TU_BITFIELD_ORDER TU_BITFIELD_LE
#else
#define TU_BYTE_ORDER TU_BIG_ENDIAN
+ #define TU_BITFIELD_ORDER TU_BITFIELD_BE
#endif
// Unfortunately XC16 doesn't provide builtins for 32bit endian conversion
@@ -212,8 +217,10 @@
// Endian conversion use well-known host to network (big endian) naming
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define TU_BYTE_ORDER TU_LITTLE_ENDIAN
+ #define TU_BITFIELD_ORDER TU_BITFIELD_LE
#else
#define TU_BYTE_ORDER TU_BIG_ENDIAN
+ #define TU_BITFIELD_ORDER TU_BITFIELD_BE
#endif
#define TU_BSWAP16(u16) (__iar_builtin_REV16(u16))
@@ -239,8 +246,10 @@
// Endian conversion use well-known host to network (big endian) naming
#if defined(__LIT)
#define TU_BYTE_ORDER TU_LITTLE_ENDIAN
+ #define TU_BITFIELD_ORDER TU_BITFIELD_LE
#else
#define TU_BYTE_ORDER TU_BIG_ENDIAN
+ #define TU_BITFIELD_ORDER TU_BITFIELD_BE
#endif
#define TU_BSWAP16(u16) ((unsigned short)_builtin_revw((unsigned long)u16))
diff --git a/src/common/tusb_types.h b/src/common/tusb_types.h
index d8b6a8823..8ae1407f8 100644
--- a/src/common/tusb_types.h
+++ b/src/common/tusb_types.h
@@ -409,10 +409,19 @@ typedef struct TU_ATTR_PACKED {
uint8_t bEndpointAddress ; // The address of the endpoint
struct TU_ATTR_PACKED {
+#if (TU_BITFIELD_ORDER == TU_BITFIELD_LE)
uint8_t xfer : 2; // Control, ISO, Bulk, Interrupt
uint8_t sync : 2; // None, Asynchronous, Adaptive, Synchronous
uint8_t usage : 2; // Data, Feedback, Implicit feedback
uint8_t : 2;
+#elif (TU_BITFIELD_ORDER == TU_BITFIELD_BE)
+ uint8_t : 2;
+ uint8_t usage : 2;
+ uint8_t sync : 2;
+ uint8_t xfer : 2;
+#else
+ #error "Please define TU_BITFIELD_ORDER as TU_BITFIELD_LE or TU_BITFIELD_BE"
+#endif
} bmAttributes;
uint16_t wMaxPacketSize ; // Bit 10..0 : max packet size, bit 12..11 additional transaction per highspeed micro-frame
@@ -522,9 +531,17 @@ typedef struct TU_ATTR_PACKED {
typedef struct TU_ATTR_PACKED {
union {
struct TU_ATTR_PACKED {
+#if (TU_BITFIELD_ORDER == TU_BITFIELD_LE)
uint8_t recipient : 5; ///< Recipient type tusb_request_recipient_t.
uint8_t type : 2; ///< Request type tusb_request_type_t.
uint8_t direction : 1; ///< Direction type. tusb_dir_t
+#elif (TU_BITFIELD_ORDER == TU_BITFIELD_BE)
+ uint8_t direction : 1; ///< Direction type. tusb_dir_t
+ uint8_t type : 2; ///< Request type tusb_request_type_t.
+ uint8_t recipient : 5; ///< Recipient type tusb_request_recipient_t.
+#else
+ #error "Please define TU_BITFIELD_ORDER as TU_BITFIELD_LE or TU_BITFIELD_BE"
+#endif
} bmRequestType_bit;
uint8_t bmRequestType;