diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/portable/mentor/musb/dcd_musb.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/src/portable/mentor/musb/dcd_musb.c b/src/portable/mentor/musb/dcd_musb.c index f0c5aa722..d329285e9 100644 --- a/src/portable/mentor/musb/dcd_musb.c +++ b/src/portable/mentor/musb/dcd_musb.c @@ -32,12 +32,6 @@ #define MUSB_DEBUG 2 #define MUSB_REGS(rhport) ((musb_regs_t*) MUSB_BASES[rhport]) -#if __GNUC__ > 8 && defined(__ARM_FEATURE_UNALIGNED) -/* GCC warns that an address may be unaligned, even though - * the target CPU has the capability for unaligned memory access. */ -_Pragma("GCC diagnostic ignored \"-Waddress-of-packed-member\""); -#endif - #include "musb_type.h" #include "device/dcd.h" @@ -73,7 +67,10 @@ typedef struct TU_ATTR_PACKED typedef struct { - tusb_control_request_t setup_packet; + union { + tusb_control_request_t setup_packet; + uint32_t setup_buffer[2]; + }; uint16_t remaining_ctrl; /* The number of bytes remaining in data stage of control transfer. */ int8_t status_out; pipe_state_t pipe0; @@ -174,9 +171,8 @@ static void process_setup_packet(uint8_t rhport) { musb_regs_t* musb_regs = MUSB_REGS(rhport); // Read setup packet - uint32_t *p = (void*)&_dcd.setup_packet; - p[0] = musb_regs->fifo[0]; - p[1] = musb_regs->fifo[0]; + _dcd.setup_buffer[0] = musb_regs->fifo[0]; + _dcd.setup_buffer[1] = musb_regs->fifo[0]; _dcd.pipe0.buf = NULL; _dcd.pipe0.length = 0; @@ -193,14 +189,13 @@ static void process_setup_packet(uint8_t rhport) { } } -static bool handle_xfer_in(uint8_t rhport, uint_fast8_t ep_addr) -{ +static bool handle_xfer_in(uint8_t rhport, uint_fast8_t ep_addr) { unsigned epnum = tu_edpt_number(ep_addr); unsigned epnum_minus1 = epnum - 1; pipe_state_t *pipe = &_dcd.pipe[tu_edpt_dir(ep_addr)][epnum_minus1]; const unsigned rem = pipe->remaining; - if (!rem) { + if (rem == 0 && pipe->length > 0) { pipe->buf = NULL; return true; } |