diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/portable/nuvoton/nuc121/dcd_nuc121.c | 54 |
1 files changed, 50 insertions, 4 deletions
diff --git a/src/portable/nuvoton/nuc121/dcd_nuc121.c b/src/portable/nuvoton/nuc121/dcd_nuc121.c index c9ead6de0..1560d5642 100644 --- a/src/portable/nuvoton/nuc121/dcd_nuc121.c +++ b/src/portable/nuvoton/nuc121/dcd_nuc121.c @@ -144,7 +144,15 @@ static void dcd_in_xfer(struct xfer_ctl_t *xfer, USBD_EP_T *ep) { uint16_t bytes_now = tu_min16(xfer->in_remaining_bytes, xfer->max_packet_size); - memcpy((uint8_t *)(USBD_BUF_BASE + ep->BUFSEG), xfer->data_ptr, bytes_now); + if (xfer->data_ptr) + { + memcpy((uint8_t *)(USBD_BUF_BASE + ep->BUFSEG), xfer->data_ptr, bytes_now); + } + else + { + tu_fifo_read_n(xfer->ff, (void *) (USBD_BUF_BASE + ep->BUFSEG), bytes_now); + } + ep->MXPLD = bytes_now; } @@ -292,6 +300,36 @@ bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t *buffer, uint16_t to return true; } +bool dcd_edpt_iso_xfer (uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16_t total_bytes) +{ + (void) rhport; + + /* mine the data for the information we need */ + tusb_dir_t dir = tu_edpt_dir(ep_addr); + USBD_EP_T *ep = ep_entry(ep_addr, false); + struct xfer_ctl_t *xfer = &xfer_table[ep - USBD->EP]; + + /* store away the information we'll needing now and later */ + xfer->data_ptr = NULL; // Indicates a FIFO shall be used + xfer->ff = ff; + xfer->in_remaining_bytes = total_bytes; + xfer->total_bytes = total_bytes; + + if (TUSB_DIR_IN == dir) + { + tu_fifo_set_copy_mode_write(ff, TU_FIFO_COPY_INC); // For the PHY in nuc120 the source and destination pointer have to be incremented! + dcd_in_xfer(xfer, ep); + } + else + { + tu_fifo_set_copy_mode_read(ff, TU_FIFO_COPY_INC); // For the PHY in nuc120 the source and destination pointer have to be incremented! + xfer->out_bytes_so_far = 0; + ep->MXPLD = xfer->max_packet_size; + } + + return true; +} + void dcd_edpt_stall(uint8_t rhport, uint8_t ep_addr) { (void) rhport; @@ -400,9 +438,17 @@ void dcd_int_handler(uint8_t rhport) if (out_ep) { /* copy the data from the PC to the previously provided buffer */ - memcpy(xfer->data_ptr, (uint8_t *)(USBD_BUF_BASE + ep->BUFSEG), available_bytes); + if (xfer->data_ptr) + { + memcpy(xfer->data_ptr, (uint8_t *)(USBD_BUF_BASE + ep->BUFSEG), available_bytes); + xfer->data_ptr += available_bytes; + } + else + { + tu_fifo_write_n(xfer->ff, (const void *) (USBD_BUF_BASE + ep->BUFSEG), available_bytes); + } + xfer->out_bytes_so_far += available_bytes; - xfer->data_ptr += available_bytes; /* when the transfer is finished, alert TinyUSB; otherwise, accept more data */ if ( (xfer->total_bytes == xfer->out_bytes_so_far) || (available_bytes < xfer->max_packet_size) ) @@ -414,7 +460,7 @@ void dcd_int_handler(uint8_t rhport) { /* update the bookkeeping to reflect the data that has now been sent to the PC */ xfer->in_remaining_bytes -= available_bytes; - xfer->data_ptr += available_bytes; + if (xfer->data_ptr) xfer->data_ptr += available_bytes; /* if more data to send, send it; otherwise, alert TinyUSB that we've finished */ if (xfer->in_remaining_bytes) |