PERFORCE change 164369 for review

[Sylvestre Gallon]

http://perforce.freebsd.org/chv.cgi?CH=164369

Change 164369 by syl at syl_atuin on 2009/06/14 18:58:10

	Add isochronous transfer init.

Affected files ...

.. //depot/projects/soc2009/syl_usb/src/lib/libusb/libusb10.c#32 edit

Differences ...

==== //depot/projects/soc2009/syl_usb/src/lib/libusb/libusb10.c#32 (text+ko) ====

@@ -684,6 +684,8 @@
 	libusb_transfer *usb_xfer;
 	libusb_context *ctx;
 	uint8_t status;
+	uint32_t iso_packets;
+	int i;
 
 	usb_backend = (struct usb_transfer *) ((uint8_t *)xfer - 
 	    sizeof(struct usb_transfer));
@@ -713,6 +715,14 @@
 				    usb_xfer->timeout);
 				break ;
 			case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
+				iso_packets = libusb20_tr_get_max_frames(xfer);
+				if (usb_xfer->num_iso_packets > iso_packets)
+					usb_xfer->num_iso_packets = iso_packets;
+				for (i = 0 ; i < usb_xfer->num_iso_packets ; i++) {
+					libusb20_tr_setup_isoc(usb_xfer, 
+					    usb_xfer->buffer, usb_xfer->length, i);
+				}
+				libusb20_tr_set_total_frames(i);
 				break ;
 			case LIBUSB_TRANSFER_TYPE_BULK:
 				libusb20_tr_setup_bulk(xfer, usb_xfer->buffer,