16 int usb_urb_reconfig(struct usb_data_stream *stream,
21 	struct usb_data_stream *stream = urb->context;  in usb_urb_complete()  local
26 	dev_dbg_ratelimited(&stream->udev->dev,  in usb_urb_complete()
42 		dev_dbg_ratelimited(&stream->udev->dev,  in usb_urb_complete()
53 				dev_dbg(&stream->udev->dev,  in usb_urb_complete()
58 				stream->complete(stream,  in usb_urb_complete()
68 			stream->complete(stream, b, urb->actual_length);  in usb_urb_complete()
71 		dev_err(&stream->udev->dev,  in usb_urb_complete()
79 int usb_urb_killv2(struct usb_data_stream *stream)  in usb_urb_killv2()  argument
82 	for (i = 0; i < stream->urbs_submitted; i++) {  in usb_urb_killv2()
83 		dev_dbg(&stream->udev->dev, "%s: kill urb=%d\n", __func__, i);  in usb_urb_killv2()
85 		usb_kill_urb(stream->urb_list[i]);  in usb_urb_killv2()
87 	stream->urbs_submitted = 0;  in usb_urb_killv2()
91 int usb_urb_submitv2(struct usb_data_stream *stream,  in usb_urb_submitv2()  argument
97 		ret = usb_urb_reconfig(stream, props);  in usb_urb_submitv2()
102 	for (i = 0; i < stream->urbs_initialized; i++) {  in usb_urb_submitv2()
103 		dev_dbg(&stream->udev->dev, "%s: submit urb=%d\n", __func__, i);  in usb_urb_submitv2()
104 		ret = usb_submit_urb(stream->urb_list[i], GFP_ATOMIC);  in usb_urb_submitv2()
106 			dev_err(&stream->udev->dev,  in usb_urb_submitv2()
109 			usb_urb_killv2(stream);  in usb_urb_submitv2()
112 		stream->urbs_submitted++;  in usb_urb_submitv2()
117 static int usb_urb_free_urbs(struct usb_data_stream *stream)  in usb_urb_free_urbs()  argument
121 	usb_urb_killv2(stream);  in usb_urb_free_urbs()
123 	for (i = stream->urbs_initialized - 1; i >= 0; i--) {  in usb_urb_free_urbs()
124 		if (stream->urb_list[i]) {  in usb_urb_free_urbs()
125 			dev_dbg(&stream->udev->dev, "%s: free urb=%d\n",  in usb_urb_free_urbs()
128 			usb_free_urb(stream->urb_list[i]);  in usb_urb_free_urbs()
131 	stream->urbs_initialized = 0;  in usb_urb_free_urbs()
136 static int usb_urb_alloc_bulk_urbs(struct usb_data_stream *stream)  in usb_urb_alloc_bulk_urbs()  argument
141 	for (i = 0; i < stream->props.count; i++) {  in usb_urb_alloc_bulk_urbs()
142 		dev_dbg(&stream->udev->dev, "%s: alloc urb=%d\n", __func__, i);  in usb_urb_alloc_bulk_urbs()
143 		stream->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC);  in usb_urb_alloc_bulk_urbs()
144 		if (!stream->urb_list[i]) {  in usb_urb_alloc_bulk_urbs()
145 			dev_dbg(&stream->udev->dev, "%s: failed\n", __func__);  in usb_urb_alloc_bulk_urbs()
147 				usb_free_urb(stream->urb_list[j]);  in usb_urb_alloc_bulk_urbs()
150 		usb_fill_bulk_urb(stream->urb_list[i],  in usb_urb_alloc_bulk_urbs()
151 				stream->udev,  in usb_urb_alloc_bulk_urbs()
152 				usb_rcvbulkpipe(stream->udev,  in usb_urb_alloc_bulk_urbs()
153 						stream->props.endpoint),  in usb_urb_alloc_bulk_urbs()
154 				stream->buf_list[i],  in usb_urb_alloc_bulk_urbs()
155 				stream->props.u.bulk.buffersize,  in usb_urb_alloc_bulk_urbs()
156 				usb_urb_complete, stream);  in usb_urb_alloc_bulk_urbs()
158 		stream->urbs_initialized++;  in usb_urb_alloc_bulk_urbs()
163 static int usb_urb_alloc_isoc_urbs(struct usb_data_stream *stream)  in usb_urb_alloc_isoc_urbs()  argument
168 	for (i = 0; i < stream->props.count; i++) {  in usb_urb_alloc_isoc_urbs()
171 		dev_dbg(&stream->udev->dev, "%s: alloc urb=%d\n", __func__, i);  in usb_urb_alloc_isoc_urbs()
172 		stream->urb_list[i] = usb_alloc_urb(  in usb_urb_alloc_isoc_urbs()
173 				stream->props.u.isoc.framesperurb, GFP_ATOMIC);  in usb_urb_alloc_isoc_urbs()
174 		if (!stream->urb_list[i]) {  in usb_urb_alloc_isoc_urbs()
175 			dev_dbg(&stream->udev->dev, "%s: failed\n", __func__);  in usb_urb_alloc_isoc_urbs()
177 				usb_free_urb(stream->urb_list[j]);  in usb_urb_alloc_isoc_urbs()
181 		urb = stream->urb_list[i];  in usb_urb_alloc_isoc_urbs()
183 		urb->dev = stream->udev;  in usb_urb_alloc_isoc_urbs()
184 		urb->context = stream;  in usb_urb_alloc_isoc_urbs()
186 		urb->pipe = usb_rcvisocpipe(stream->udev,  in usb_urb_alloc_isoc_urbs()
187 				stream->props.endpoint);  in usb_urb_alloc_isoc_urbs()
189 		urb->interval = stream->props.u.isoc.interval;  in usb_urb_alloc_isoc_urbs()
190 		urb->number_of_packets = stream->props.u.isoc.framesperurb;  in usb_urb_alloc_isoc_urbs()
191 		urb->transfer_buffer_length = stream->props.u.isoc.framesize *  in usb_urb_alloc_isoc_urbs()
192 				stream->props.u.isoc.framesperurb;  in usb_urb_alloc_isoc_urbs()
193 		urb->transfer_buffer = stream->buf_list[i];  in usb_urb_alloc_isoc_urbs()
195 		for (j = 0; j < stream->props.u.isoc.framesperurb; j++) {  in usb_urb_alloc_isoc_urbs()
198 					stream->props.u.isoc.framesize;  in usb_urb_alloc_isoc_urbs()
199 			frame_offset += stream->props.u.isoc.framesize;  in usb_urb_alloc_isoc_urbs()
202 		stream->urbs_initialized++;  in usb_urb_alloc_isoc_urbs()
207 static int usb_free_stream_buffers(struct usb_data_stream *stream)  in usb_free_stream_buffers()  argument
209 	if (stream->state & USB_STATE_URB_BUF) {  in usb_free_stream_buffers()
210 		while (stream->buf_num) {  in usb_free_stream_buffers()
211 			stream->buf_num--;  in usb_free_stream_buffers()
212 			kfree(stream->buf_list[stream->buf_num]);  in usb_free_stream_buffers()
216 	stream->state &= ~USB_STATE_URB_BUF;  in usb_free_stream_buffers()
221 static int usb_alloc_stream_buffers(struct usb_data_stream *stream, int num,  in usb_alloc_stream_buffers()  argument
224 	stream->buf_num = 0;  in usb_alloc_stream_buffers()
225 	stream->buf_size = size;  in usb_alloc_stream_buffers()
227 	dev_dbg(&stream->udev->dev,  in usb_alloc_stream_buffers()
231 	for (stream->buf_num = 0; stream->buf_num < num; stream->buf_num++) {  in usb_alloc_stream_buffers()
232 		stream->buf_list[stream->buf_num] = kzalloc(size, GFP_ATOMIC);  in usb_alloc_stream_buffers()
233 		if (!stream->buf_list[stream->buf_num]) {  in usb_alloc_stream_buffers()
234 			dev_dbg(&stream->udev->dev, "%s: alloc buf=%d failed\n",  in usb_alloc_stream_buffers()
235 					__func__, stream->buf_num);  in usb_alloc_stream_buffers()
236 			usb_free_stream_buffers(stream);  in usb_alloc_stream_buffers()
240 		dev_dbg(&stream->udev->dev, "%s: alloc buf=%d %p (dma %llu)\n",  in usb_alloc_stream_buffers()
241 				__func__, stream->buf_num,  in usb_alloc_stream_buffers()
242 				stream->buf_list[stream->buf_num],  in usb_alloc_stream_buffers()
243 				(long long)stream->dma_addr[stream->buf_num]);  in usb_alloc_stream_buffers()
244 		stream->state |= USB_STATE_URB_BUF;  in usb_alloc_stream_buffers()
250 int usb_urb_reconfig(struct usb_data_stream *stream,  in usb_urb_reconfig()  argument
260 		buf_size = stream->props.u.bulk.buffersize;  in usb_urb_reconfig()
264 		dev_err(&stream->udev->dev, "%s: invalid endpoint type=%d\n",  in usb_urb_reconfig()
269 	if (stream->buf_num < props->count || stream->buf_size < buf_size) {  in usb_urb_reconfig()
270 		dev_err(&stream->udev->dev,  in usb_urb_reconfig()
277 	if (stream->props.type == props->type &&  in usb_urb_reconfig()
278 			stream->props.count == props->count &&  in usb_urb_reconfig()
279 			stream->props.endpoint == props->endpoint) {  in usb_urb_reconfig()
282 				stream->props.u.bulk.buffersize)  in usb_urb_reconfig()
286 				stream->props.u.isoc.framesperurb &&  in usb_urb_reconfig()
288 				stream->props.u.isoc.framesize &&  in usb_urb_reconfig()
290 				stream->props.u.isoc.interval)  in usb_urb_reconfig()
294 	dev_dbg(&stream->udev->dev, "%s: re-alloc urbs\n", __func__);  in usb_urb_reconfig()
296 	usb_urb_free_urbs(stream);  in usb_urb_reconfig()
297 	memcpy(&stream->props, props, sizeof(*props));  in usb_urb_reconfig()
299 		return usb_urb_alloc_bulk_urbs(stream);  in usb_urb_reconfig()
301 		return usb_urb_alloc_isoc_urbs(stream);  in usb_urb_reconfig()
306 int usb_urb_initv2(struct usb_data_stream *stream,  in usb_urb_initv2()  argument
311 	if (!stream || !props)  in usb_urb_initv2()
314 	memcpy(&stream->props, props, sizeof(*props));  in usb_urb_initv2()
316 	if (!stream->complete) {  in usb_urb_initv2()
317 		dev_err(&stream->udev->dev,  in usb_urb_initv2()
323 	switch (stream->props.type) {  in usb_urb_initv2()
325 		ret = usb_alloc_stream_buffers(stream, stream->props.count,  in usb_urb_initv2()
326 				stream->props.u.bulk.buffersize);  in usb_urb_initv2()
330 		return usb_urb_alloc_bulk_urbs(stream);  in usb_urb_initv2()
332 		ret = usb_alloc_stream_buffers(stream, stream->props.count,  in usb_urb_initv2()
333 				stream->props.u.isoc.framesize *  in usb_urb_initv2()
334 				stream->props.u.isoc.framesperurb);  in usb_urb_initv2()
338 		return usb_urb_alloc_isoc_urbs(stream);  in usb_urb_initv2()
340 		dev_err(&stream->udev->dev,  in usb_urb_initv2()
347 int usb_urb_exitv2(struct usb_data_stream *stream)  in usb_urb_exitv2()  argument
349 	usb_urb_free_urbs(stream);  in usb_urb_exitv2()
350 	usb_free_stream_buffers(stream);  in usb_urb_exitv2()