25 static int submit_audio_in_urb(struct snd_line6_pcm *line6pcm)  in submit_audio_in_urb()  argument
32 	index = find_first_zero_bit(&line6pcm->in.active_urbs,  in submit_audio_in_urb()
33 				    line6pcm->line6->iso_buffers);  in submit_audio_in_urb()
35 	if (index < 0 || index >= line6pcm->line6->iso_buffers) {  in submit_audio_in_urb()
36 		dev_err(line6pcm->line6->ifcdev, "no free URB found\n");  in submit_audio_in_urb()
40 	urb_in = line6pcm->in.urbs[index];  in submit_audio_in_urb()
47 		fin->length = line6pcm->max_packet_size_in;  in submit_audio_in_urb()
48 		urb_size += line6pcm->max_packet_size_in;  in submit_audio_in_urb()
52 	    line6pcm->in.buffer +  in submit_audio_in_urb()
53 	    index * LINE6_ISO_PACKETS * line6pcm->max_packet_size_in;  in submit_audio_in_urb()
55 	urb_in->context = line6pcm;  in submit_audio_in_urb()
60 		set_bit(index, &line6pcm->in.active_urbs);  in submit_audio_in_urb()
62 		dev_err(line6pcm->line6->ifcdev,  in submit_audio_in_urb()
72 int line6_submit_audio_in_all_urbs(struct snd_line6_pcm *line6pcm)  in line6_submit_audio_in_all_urbs()  argument
76 	for (i = 0; i < line6pcm->line6->iso_buffers; ++i) {  in line6_submit_audio_in_all_urbs()
77 		ret = submit_audio_in_urb(line6pcm);  in line6_submit_audio_in_all_urbs()
88 void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf, int fsize)  in line6_capture_copy()  argument
91 	    get_substream(line6pcm, SNDRV_PCM_STREAM_CAPTURE);  in line6_capture_copy()
94 		line6pcm->properties->bytes_per_channel *  in line6_capture_copy()
95 		line6pcm->properties->capture_hw.channels_max;  in line6_capture_copy()
101 	if (line6pcm->in.pos_done + frames > runtime->buffer_size) {  in line6_capture_copy()
108 		len = runtime->buffer_size - line6pcm->in.pos_done;  in line6_capture_copy()
112 			       line6pcm->in.pos_done * bytes_per_frame, fbuf,  in line6_capture_copy()
118 			dev_err(line6pcm->line6->ifcdev,  in line6_capture_copy()
124 		       line6pcm->in.pos_done * bytes_per_frame, fbuf, fsize);  in line6_capture_copy()
127 	line6pcm->in.pos_done += frames;  in line6_capture_copy()
128 	if (line6pcm->in.pos_done >= runtime->buffer_size)  in line6_capture_copy()
129 		line6pcm->in.pos_done -= runtime->buffer_size;  in line6_capture_copy()
132 void line6_capture_check_period(struct snd_line6_pcm *line6pcm, int length)  in line6_capture_check_period()  argument
135 	    get_substream(line6pcm, SNDRV_PCM_STREAM_CAPTURE);  in line6_capture_check_period()
137 	line6pcm->in.bytes += length;  in line6_capture_check_period()
138 	if (line6pcm->in.bytes >= line6pcm->in.period) {  in line6_capture_check_period()
139 		line6pcm->in.bytes %= line6pcm->in.period;  in line6_capture_check_period()
140 		spin_unlock(&line6pcm->in.lock);  in line6_capture_check_period()
142 		spin_lock(&line6pcm->in.lock);  in line6_capture_check_period()
154 	struct snd_line6_pcm *line6pcm = (struct snd_line6_pcm *)urb->context;  in audio_in_callback()  local
156 	line6pcm->in.last_frame = urb->start_frame;  in audio_in_callback()
159 	for (index = 0; index < line6pcm->line6->iso_buffers; ++index)  in audio_in_callback()
160 		if (urb == line6pcm->in.urbs[index])  in audio_in_callback()
163 	spin_lock_irqsave(&line6pcm->in.lock, flags);  in audio_in_callback()
178 		if (fsize > line6pcm->max_packet_size_in) {  in audio_in_callback()
179 			dev_err(line6pcm->line6->ifcdev,  in audio_in_callback()
181 				fsize, line6pcm->max_packet_size_in);  in audio_in_callback()
195 		line6pcm->prev_fbuf = fbuf;  in audio_in_callback()
196 		line6pcm->prev_fsize = fsize /  in audio_in_callback()
197 			(line6pcm->properties->bytes_per_channel *  in audio_in_callback()
198 			line6pcm->properties->capture_hw.channels_max);  in audio_in_callback()
200 		if (!test_bit(LINE6_STREAM_IMPULSE, &line6pcm->in.running) &&  in audio_in_callback()
201 		    test_bit(LINE6_STREAM_PCM, &line6pcm->in.running) &&  in audio_in_callback()
203 			line6_capture_copy(line6pcm, fbuf, fsize);  in audio_in_callback()
206 	clear_bit(index, &line6pcm->in.active_urbs);  in audio_in_callback()
208 	if (test_and_clear_bit(index, &line6pcm->in.unlink_urbs))  in audio_in_callback()
212 		submit_audio_in_urb(line6pcm);  in audio_in_callback()
214 		if (!test_bit(LINE6_STREAM_IMPULSE, &line6pcm->in.running) &&  in audio_in_callback()
215 		    test_bit(LINE6_STREAM_PCM, &line6pcm->in.running))  in audio_in_callback()
216 			line6_capture_check_period(line6pcm, length);  in audio_in_callback()
219 	spin_unlock_irqrestore(&line6pcm->in.lock, flags);  in audio_in_callback()
227 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);  in snd_line6_capture_open()  local
231 					    &line6pcm->properties->rates);  in snd_line6_capture_open()
235 	line6_pcm_acquire(line6pcm, LINE6_STREAM_CAPTURE_HELPER, false);  in snd_line6_capture_open()
237 	runtime->hw = line6pcm->properties->capture_hw;  in snd_line6_capture_open()
244 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);  in snd_line6_capture_close()  local
246 	line6_pcm_release(line6pcm, LINE6_STREAM_CAPTURE_HELPER);  in snd_line6_capture_close()
262 int line6_create_audio_in_urbs(struct snd_line6_pcm *line6pcm)  in line6_create_audio_in_urbs()  argument
264 	struct usb_line6 *line6 = line6pcm->line6;  in line6_create_audio_in_urbs()
267 	line6pcm->in.urbs = kcalloc(line6->iso_buffers, sizeof(struct urb *),  in line6_create_audio_in_urbs()
269 	if (line6pcm->in.urbs == NULL)  in line6_create_audio_in_urbs()
277 		urb = line6pcm->in.urbs[i] =  in line6_create_audio_in_urbs()