Add UAC2 fix patch for TinyUSB 0.18

shermp · Feb 22, 2025 · 949beac · 949beac
1 parent 0bf7062
commit 949beac
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/patch/tinyusb-v0.18-patch.diff b/patch/tinyusb-v0.18-patch.diff
@@ -0,0 +1,15 @@
+diff --git a/src/portable/raspberrypi/rp2040/dcd_rp2040.c b/src/portable/raspberrypi/rp2040/dcd_rp2040.c
+index af08b549d..40c21aa71 100644
+--- a/src/portable/raspberrypi/rp2040/dcd_rp2040.c
++++ b/src/portable/raspberrypi/rp2040/dcd_rp2040.c
+@@ -496,6 +496,10 @@ bool dcd_edpt_iso_alloc(uint8_t rhport, uint8_t ep_addr, uint16_t largest_packet
+ bool dcd_edpt_iso_activate(uint8_t rhport, tusb_desc_endpoint_t const * ep_desc) {
+   (void) rhport;
+   const uint8_t ep_addr = ep_desc->bEndpointAddress;
++   // init w/o allocate
++   const uint16_t mps = ep_desc->wMaxPacketSize;
++   uint16_t size = (uint16_t)tu_div_ceil(mps, 64) * 64u;
++   hw_endpoint_init(ep_addr, size, TUSB_XFER_ISOCHRONOUS);
+   // Fill in endpoint control register with buffer offset
+   struct hw_endpoint* ep = hw_endpoint_get_by_addr(ep_addr);
+   TU_ASSERT(ep->hw_data_buf != NULL); // must be inited and buffer allocated