15 int usb_urb_reconfig(struct usb_data_stream *stream,
20 	struct usb_data_stream *stream = urb->context;  in usb_urb_complete()  local
25 	dev_dbg_ratelimited(&stream->udev->dev,  in usb_urb_complete()
41 		dev_dbg_ratelimited(&stream->udev->dev,  in usb_urb_complete()
52 				dev_dbg(&stream->udev->dev,  in usb_urb_complete()
57 				stream->complete(stream,  in usb_urb_complete()
67 			stream->complete(stream, b, urb->actual_length);  in usb_urb_complete()
70 		dev_err(&stream->udev->dev,  in usb_urb_complete()
78 int usb_urb_killv2(struct usb_data_stream *stream)  in usb_urb_killv2()  argument
81 	for (i = 0; i < stream->urbs_submitted; i++) {  in usb_urb_killv2()
82 		dev_dbg(&stream->udev->dev, "%s: kill urb=%d\n", __func__, i);  in usb_urb_killv2()
84 		usb_kill_urb(stream->urb_list[i]);  in usb_urb_killv2()
86 	stream->urbs_submitted = 0;  in usb_urb_killv2()
90 int usb_urb_submitv2(struct usb_data_stream *stream,  in usb_urb_submitv2()  argument
96 		ret = usb_urb_reconfig(stream, props);  in usb_urb_submitv2()
101 	for (i = 0; i < stream->urbs_initialized; i++) {  in usb_urb_submitv2()
102 		dev_dbg(&stream->udev->dev, "%s: submit urb=%d\n", __func__, i);  in usb_urb_submitv2()
103 		ret = usb_submit_urb(stream->urb_list[i], GFP_ATOMIC);  in usb_urb_submitv2()
105 			dev_err(&stream->udev->dev,  in usb_urb_submitv2()
108 			usb_urb_killv2(stream);  in usb_urb_submitv2()
111 		stream->urbs_submitted++;  in usb_urb_submitv2()
116 static int usb_urb_free_urbs(struct usb_data_stream *stream)  in usb_urb_free_urbs()  argument
120 	usb_urb_killv2(stream);  in usb_urb_free_urbs()
122 	for (i = stream->urbs_initialized - 1; i >= 0; i--) {  in usb_urb_free_urbs()
123 		if (stream->urb_list[i]) {  in usb_urb_free_urbs()
124 			dev_dbg(&stream->udev->dev, "%s: free urb=%d\n",  in usb_urb_free_urbs()
127 			usb_free_urb(stream->urb_list[i]);  in usb_urb_free_urbs()
130 	stream->urbs_initialized = 0;  in usb_urb_free_urbs()
135 static int usb_urb_alloc_bulk_urbs(struct usb_data_stream *stream)  in usb_urb_alloc_bulk_urbs()  argument
140 	for (i = 0; i < stream->props.count; i++) {  in usb_urb_alloc_bulk_urbs()
141 		dev_dbg(&stream->udev->dev, "%s: alloc urb=%d\n", __func__, i);  in usb_urb_alloc_bulk_urbs()
142 		stream->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC);  in usb_urb_alloc_bulk_urbs()
143 		if (!stream->urb_list[i]) {  in usb_urb_alloc_bulk_urbs()
144 			dev_dbg(&stream->udev->dev, "%s: failed\n", __func__);  in usb_urb_alloc_bulk_urbs()
146 				usb_free_urb(stream->urb_list[j]);  in usb_urb_alloc_bulk_urbs()
149 		usb_fill_bulk_urb(stream->urb_list[i],  in usb_urb_alloc_bulk_urbs()
150 				stream->udev,  in usb_urb_alloc_bulk_urbs()
151 				usb_rcvbulkpipe(stream->udev,  in usb_urb_alloc_bulk_urbs()
152 						stream->props.endpoint),  in usb_urb_alloc_bulk_urbs()
153 				stream->buf_list[i],  in usb_urb_alloc_bulk_urbs()
154 				stream->props.u.bulk.buffersize,  in usb_urb_alloc_bulk_urbs()
155 				usb_urb_complete, stream);  in usb_urb_alloc_bulk_urbs()
157 		stream->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;  in usb_urb_alloc_bulk_urbs()
158 		stream->urb_list[i]->transfer_dma = stream->dma_addr[i];  in usb_urb_alloc_bulk_urbs()
159 		stream->urbs_initialized++;  in usb_urb_alloc_bulk_urbs()
164 static int usb_urb_alloc_isoc_urbs(struct usb_data_stream *stream)  in usb_urb_alloc_isoc_urbs()  argument
169 	for (i = 0; i < stream->props.count; i++) {  in usb_urb_alloc_isoc_urbs()
172 		dev_dbg(&stream->udev->dev, "%s: alloc urb=%d\n", __func__, i);  in usb_urb_alloc_isoc_urbs()
173 		stream->urb_list[i] = usb_alloc_urb(  in usb_urb_alloc_isoc_urbs()
174 				stream->props.u.isoc.framesperurb, GFP_ATOMIC);  in usb_urb_alloc_isoc_urbs()
175 		if (!stream->urb_list[i]) {  in usb_urb_alloc_isoc_urbs()
176 			dev_dbg(&stream->udev->dev, "%s: failed\n", __func__);  in usb_urb_alloc_isoc_urbs()
178 				usb_free_urb(stream->urb_list[j]);  in usb_urb_alloc_isoc_urbs()
182 		urb = stream->urb_list[i];  in usb_urb_alloc_isoc_urbs()
184 		urb->dev = stream->udev;  in usb_urb_alloc_isoc_urbs()
185 		urb->context = stream;  in usb_urb_alloc_isoc_urbs()
187 		urb->pipe = usb_rcvisocpipe(stream->udev,  in usb_urb_alloc_isoc_urbs()
188 				stream->props.endpoint);  in usb_urb_alloc_isoc_urbs()
190 		urb->interval = stream->props.u.isoc.interval;  in usb_urb_alloc_isoc_urbs()
191 		urb->number_of_packets = stream->props.u.isoc.framesperurb;  in usb_urb_alloc_isoc_urbs()
192 		urb->transfer_buffer_length = stream->props.u.isoc.framesize *  in usb_urb_alloc_isoc_urbs()
193 				stream->props.u.isoc.framesperurb;  in usb_urb_alloc_isoc_urbs()
194 		urb->transfer_buffer = stream->buf_list[i];  in usb_urb_alloc_isoc_urbs()
195 		urb->transfer_dma = stream->dma_addr[i];  in usb_urb_alloc_isoc_urbs()
197 		for (j = 0; j < stream->props.u.isoc.framesperurb; j++) {  in usb_urb_alloc_isoc_urbs()
200 					stream->props.u.isoc.framesize;  in usb_urb_alloc_isoc_urbs()
201 			frame_offset += stream->props.u.isoc.framesize;  in usb_urb_alloc_isoc_urbs()
204 		stream->urbs_initialized++;  in usb_urb_alloc_isoc_urbs()
209 static int usb_free_stream_buffers(struct usb_data_stream *stream)  in usb_free_stream_buffers()  argument
211 	if (stream->state & USB_STATE_URB_BUF) {  in usb_free_stream_buffers()
212 		while (stream->buf_num) {  in usb_free_stream_buffers()
213 			stream->buf_num--;  in usb_free_stream_buffers()
214 			dev_dbg(&stream->udev->dev, "%s: free buf=%d\n",  in usb_free_stream_buffers()
215 				__func__, stream->buf_num);  in usb_free_stream_buffers()
216 			usb_free_coherent(stream->udev, stream->buf_size,  in usb_free_stream_buffers()
217 					  stream->buf_list[stream->buf_num],  in usb_free_stream_buffers()
218 					  stream->dma_addr[stream->buf_num]);  in usb_free_stream_buffers()
222 	stream->state &= ~USB_STATE_URB_BUF;  in usb_free_stream_buffers()
227 static int usb_alloc_stream_buffers(struct usb_data_stream *stream, int num,  in usb_alloc_stream_buffers()  argument
230 	stream->buf_num = 0;  in usb_alloc_stream_buffers()
231 	stream->buf_size = size;  in usb_alloc_stream_buffers()
233 	dev_dbg(&stream->udev->dev,  in usb_alloc_stream_buffers()
237 	for (stream->buf_num = 0; stream->buf_num < num; stream->buf_num++) {  in usb_alloc_stream_buffers()
238 		stream->buf_list[stream->buf_num] = usb_alloc_coherent(  in usb_alloc_stream_buffers()
239 				stream->udev, size, GFP_ATOMIC,  in usb_alloc_stream_buffers()
240 				&stream->dma_addr[stream->buf_num]);  in usb_alloc_stream_buffers()
241 		if (!stream->buf_list[stream->buf_num]) {  in usb_alloc_stream_buffers()
242 			dev_dbg(&stream->udev->dev, "%s: alloc buf=%d failed\n",  in usb_alloc_stream_buffers()
243 					__func__, stream->buf_num);  in usb_alloc_stream_buffers()
244 			usb_free_stream_buffers(stream);  in usb_alloc_stream_buffers()
248 		dev_dbg(&stream->udev->dev, "%s: alloc buf=%d %p (dma %llu)\n",  in usb_alloc_stream_buffers()
249 				__func__, stream->buf_num,  in usb_alloc_stream_buffers()
250 				stream->buf_list[stream->buf_num],  in usb_alloc_stream_buffers()
251 				(long long)stream->dma_addr[stream->buf_num]);  in usb_alloc_stream_buffers()
252 		memset(stream->buf_list[stream->buf_num], 0, size);  in usb_alloc_stream_buffers()
253 		stream->state |= USB_STATE_URB_BUF;  in usb_alloc_stream_buffers()
259 int usb_urb_reconfig(struct usb_data_stream *stream,  in usb_urb_reconfig()  argument
269 		buf_size = stream->props.u.bulk.buffersize;  in usb_urb_reconfig()
273 		dev_err(&stream->udev->dev, "%s: invalid endpoint type=%d\n",  in usb_urb_reconfig()
278 	if (stream->buf_num < props->count || stream->buf_size < buf_size) {  in usb_urb_reconfig()
279 		dev_err(&stream->udev->dev,  in usb_urb_reconfig()
286 	if (stream->props.type == props->type &&  in usb_urb_reconfig()
287 			stream->props.count == props->count &&  in usb_urb_reconfig()
288 			stream->props.endpoint == props->endpoint) {  in usb_urb_reconfig()
291 				stream->props.u.bulk.buffersize)  in usb_urb_reconfig()
295 				stream->props.u.isoc.framesperurb &&  in usb_urb_reconfig()
297 				stream->props.u.isoc.framesize &&  in usb_urb_reconfig()
299 				stream->props.u.isoc.interval)  in usb_urb_reconfig()
303 	dev_dbg(&stream->udev->dev, "%s: re-alloc urbs\n", __func__);  in usb_urb_reconfig()
305 	usb_urb_free_urbs(stream);  in usb_urb_reconfig()
306 	memcpy(&stream->props, props, sizeof(*props));  in usb_urb_reconfig()
308 		return usb_urb_alloc_bulk_urbs(stream);  in usb_urb_reconfig()
310 		return usb_urb_alloc_isoc_urbs(stream);  in usb_urb_reconfig()
315 int usb_urb_initv2(struct usb_data_stream *stream,  in usb_urb_initv2()  argument
320 	if (!stream || !props)  in usb_urb_initv2()
323 	memcpy(&stream->props, props, sizeof(*props));  in usb_urb_initv2()
325 	if (!stream->complete) {  in usb_urb_initv2()
326 		dev_err(&stream->udev->dev,  in usb_urb_initv2()
332 	switch (stream->props.type) {  in usb_urb_initv2()
334 		ret = usb_alloc_stream_buffers(stream, stream->props.count,  in usb_urb_initv2()
335 				stream->props.u.bulk.buffersize);  in usb_urb_initv2()
339 		return usb_urb_alloc_bulk_urbs(stream);  in usb_urb_initv2()
341 		ret = usb_alloc_stream_buffers(stream, stream->props.count,  in usb_urb_initv2()
342 				stream->props.u.isoc.framesize *  in usb_urb_initv2()
343 				stream->props.u.isoc.framesperurb);  in usb_urb_initv2()
347 		return usb_urb_alloc_isoc_urbs(stream);  in usb_urb_initv2()
349 		dev_err(&stream->udev->dev,  in usb_urb_initv2()
356 int usb_urb_exitv2(struct usb_data_stream *stream)  in usb_urb_exitv2()  argument
358 	usb_urb_free_urbs(stream);  in usb_urb_exitv2()
359 	usb_free_stream_buffers(stream);  in usb_urb_exitv2()