diff options
| -rw-r--r-- | src/portable/raspberrypi/rp2040/rp2040_usb.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/portable/raspberrypi/rp2040/rp2040_usb.c b/src/portable/raspberrypi/rp2040/rp2040_usb.c index 5c536e314..a6e0ed560 100644 --- a/src/portable/raspberrypi/rp2040/rp2040_usb.c +++ b/src/portable/raspberrypi/rp2040/rp2040_usb.c @@ -154,7 +154,14 @@ void _hw_endpoint_xfer_start(struct hw_endpoint *ep, uint8_t *buffer, uint16_t t ep->total_len = total_len; ep->len = 0; // FIXME: What if low speed - ep->transfer_size = total_len > 64 ? 64 : total_len; + if(ep->transfer_type == TUSB_XFER_ISOCHRONOUS) + { + ep->transfer_size = tu_min32(total_len, ep->wMaxPacketSize); + } + else + { + ep->transfer_size = tu_min32(total_len, 64); + } ep->active = true; ep->user_buf = buffer; // Recalculate if this is the last buffer @@ -232,7 +239,15 @@ bool _hw_endpoint_xfer_continue(struct hw_endpoint *ep) // Now we have synced our state with the hardware. Is there more data to transfer? uint remaining_bytes = ep->total_len - ep->len; - ep->transfer_size = remaining_bytes > 64 ? 64 : remaining_bytes; + + if(ep->transfer_type == TUSB_XFER_ISOCHRONOUS) + { + ep->transfer_size = tu_min32(remaining_bytes,ep->wMaxPacketSize); + } + else + { + ep->transfer_size = tu_min32(remaining_bytes, 64); + } _hw_endpoint_update_last_buf(ep); // Can happen because of programmer error so check for it |