diff options
| author | hathach <[email protected]> | 2026-02-06 23:56:30 +0700 |
|---|---|---|
| committer | hathach <[email protected]> | 2026-02-06 23:56:30 +0700 |
| commit | 9f1d86c2e30b318eb78cb8c0c976793a7812cd34 (patch) | |
| tree | 940cbe6c565227c05b68a82b82a23035720f8da5 /src | |
| parent | cb19d620e8084765dddc2ddb93c00565934c5ac4 (diff) | |
adjust handle_xfer_in logic to simplify ZLP handling
Diffstat (limited to 'src')
| -rw-r--r-- | src/portable/mentor/musb/dcd_musb.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/src/portable/mentor/musb/dcd_musb.c b/src/portable/mentor/musb/dcd_musb.c index 9e6ee6f5d..d329285e9 100644 --- a/src/portable/mentor/musb/dcd_musb.c +++ b/src/portable/mentor/musb/dcd_musb.c @@ -189,14 +189,13 @@ static void process_setup_packet(uint8_t rhport) { } } -static bool handle_xfer_in(uint8_t rhport, uint_fast8_t ep_addr, bool is_zlp) -{ +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 && !is_zlp) { + if (rem == 0 && pipe->length > 0) { pipe->buf = NULL; return true; } @@ -268,7 +267,7 @@ static bool edpt_n_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t *buffer, uint16 pipe->remaining = total_bytes; if (dir_in) { - handle_xfer_in(rhport, ep_addr, total_bytes == 0); + handle_xfer_in(rhport, ep_addr); } else { musb_regs_t* musb_regs = MUSB_REGS(rhport); musb_ep_csr_t* ep_csr = get_ep_csr(musb_regs, epnum); @@ -445,7 +444,7 @@ static void process_edpt_n(uint8_t rhport, uint_fast8_t ep_addr) ep_csr->tx_csrl &= ~(MUSB_TXCSRL1_STALLED | MUSB_TXCSRL1_UNDRN); return; } - completed = handle_xfer_in(rhport, ep_addr, false); + completed = handle_xfer_in(rhport, ep_addr); } else { // TU_LOG1(" RX CSRL%d = %x\r\n", epn, ep_csr->rx_csrl); if (ep_csr->rx_csrl & MUSB_RXCSRL1_STALLED) { |