busses/usb/uhci.cpp

270 print_descriptor_chain(uhci_td *descriptor)
272 	while (descriptor) {
275 			descriptor->this_phy & 0xffffffff, descriptor->link_phy & 0xfffffff0,
276 			descriptor->link_phy & 0x4 ? "y" : "n",
277 			descriptor->link_phy & 0x2 ? "qh" : "td",
278 			descriptor->link_phy & 0x1 ? "y" : "n",
279 			descriptor->status, descriptor->token);
281 		if (descriptor->link_phy & TD_TERMINATE)
284 		descriptor = (uhci_td *)descriptor->link_log;
371 	// descriptor in order to get some chipset to work nicely (like the PIIX).
376 		TRACE_ERROR("failed to allocate a stray transfer descriptor\n");
630 		TRACE_ERROR("faild to allocate memory for first isochronous descriptor\n");
636 		TRACE_ERROR("failed to allocate memory for last isochronous descriptor\n");
905 	uhci_td *descriptor = transferData->first_descriptor;
907 	while (descriptor) {
908 		uint32 status = descriptor->status;
917 		if ((descriptor->link_phy & TD_TERMINATE)
918 			|| uhci_td_actual_length(descriptor)
919 				< uhci_td_maximum_length(descriptor)) {
924 		descriptor = (uhci_td *)descriptor->link_log;
963 	uhci_td *descriptor = transferData->first_descriptor;
964 	while (descriptor) {
965 		descriptor->status &= ~TD_STATUS_ACTIVE;
966 		descriptor = (uhci_td *)descriptor->link_log;
1003 			uhci_td *descriptor = current->first_descriptor;
1004 			while (descriptor) {
1005 				descriptor->status &= ~TD_STATUS_ACTIVE;
1006 				descriptor = (uhci_td *)descriptor->link_log;
1057 			// Set the active bit off on every descriptor in order to prevent
1269 	// Ignore the fact that the last descriptor might need less bandwidth.
1273 	TRACE("isochronous transfer descriptor bandwidth %d\n", bandwidth);
1275 	// The following holds the list of transfer descriptor of the
1301 	// Create the last transfer descriptor which should be of smaller size
1315 	// If direction is out set every descriptor data
1326 	// Find the entry where to start inserting the first Isochronous descriptor
1403 UHCI::FindIsochronousTransfer(uhci_td *descriptor)
1405 	// Simply check every last descriptor of the isochronous transfer list
1410 				!= descriptor) {
1424 UHCI::LinkIsochronousDescriptor(uhci_td *descriptor, uint16 frame)
1426 	// The transfer descriptor is appended to the last
1427 	// existing isochronous transfer descriptor (if any)
1431 			// Insert the transfer descriptor in the first position
1432 			fFrameList[frame] = descriptor->this_phy & ~FRAMELIST_NEXT_IS_QH;
1433 			fFirstIsochronousDescriptor[frame] = descriptor;
1434 			fLastIsochronousDescriptor[frame] = descriptor;
1436 			// Append to the last transfer descriptor
1437 			fLastIsochronousDescriptor[frame]->link_log = descriptor;
1439 				= descriptor->this_phy & ~TD_NEXT_IS_QH;
1440 			fLastIsochronousDescriptor[frame] = descriptor;
1443 		descriptor->link_phy
1457 		uhci_td *descriptor = fFirstIsochronousDescriptor[frame];
1458 		if (descriptor) {
1459 			// The descriptor will be freed later.
1460 			fFrameList[frame] = descriptor->link_phy;
1461 			if (descriptor->link_log) {
1463 					= (uhci_td *)descriptor->link_log;
1470 		return descriptor;
1509 			uhci_td *descriptor = transfer->first_descriptor;
1512 			while (descriptor) {
1513 				uint32 status = descriptor->status;
1517 						descriptor->this_phy);
1525 						descriptor->this_phy, status, descriptor->token);
1565 				if ((descriptor->link_phy & TD_TERMINATE)
1566 					|| ((descriptor->status & TD_CONTROL_SPD) != 0
1567 						&& uhci_td_actual_length(descriptor)
1568 							< uhci_td_maximum_length(descriptor))) {
1570 					TRACE("td (0x%08" B_PRIx32 ") ok\n", descriptor->this_phy);
1576 				descriptor = (uhci_td *)descriptor->link_log;
1756 	 * isochronous descriptor. Once it finds the last isochronous descriptor
1779 				// Process the transfer if we found the last descriptor
2120 UHCI::CreateTransferQueue(uhci_td *descriptor)
2129 	queueHead->element_phy = descriptor->this_phy;
2152 		TRACE_ERROR("failed to allocate a transfer descriptor\n");
2210 		uhci_td *descriptor = CreateDescriptor(pipe, direction,
2213 		if (!descriptor) {
2219 			descriptor->token |= TD_TOKEN_DATA1;
2223 			LinkDescriptors(lastDescriptor, descriptor);
2227 		lastDescriptor = descriptor;
2229 			firstDescriptor = descriptor;
2239 UHCI::FreeDescriptor(uhci_td *descriptor)
2241 	if (!descriptor)
2244 	if (descriptor->buffer_log) {
2245 		fStack->FreeChunk(descriptor->buffer_log,
2246 			descriptor->buffer_phy, descriptor->buffer_size);
2249 	fStack->FreeChunk(descriptor, descriptor->this_phy, sizeof(uhci_td));
2307 					TRACE("wrote descriptor chain (%ld bytes, no more vectors)\n",
2327 	TRACE("wrote descriptor chain (%ld bytes)\n", actualLength);
2368 					TRACE("read descriptor chain (%ld bytes, no more vectors)\n",
2393 	TRACE("read descriptor chain (%ld bytes)\n", actualLength);