54 static void vivid_thread_vid_out_tick(struct vivid_dev *dev)  in vivid_thread_vid_out_tick()  argument
59 	dprintk(dev, 1, "Video Output Thread Tick\n");  in vivid_thread_vid_out_tick()
62 	if (dev->perc_dropped_buffers &&  in vivid_thread_vid_out_tick()
63 	    prandom_u32_max(100) < dev->perc_dropped_buffers)  in vivid_thread_vid_out_tick()
66 	spin_lock(&dev->slock);  in vivid_thread_vid_out_tick()
71 	if (!list_empty(&dev->vid_out_active) &&  in vivid_thread_vid_out_tick()
72 	    !list_is_singular(&dev->vid_out_active)) {  in vivid_thread_vid_out_tick()
73 		vid_out_buf = list_entry(dev->vid_out_active.next,  in vivid_thread_vid_out_tick()
77 	if (!list_empty(&dev->vbi_out_active) &&  in vivid_thread_vid_out_tick()
78 	    (dev->field_out != V4L2_FIELD_ALTERNATE ||  in vivid_thread_vid_out_tick()
79 	     (dev->vbi_out_seq_count & 1))) {  in vivid_thread_vid_out_tick()
80 		vbi_out_buf = list_entry(dev->vbi_out_active.next,  in vivid_thread_vid_out_tick()
84 	spin_unlock(&dev->slock);  in vivid_thread_vid_out_tick()
90 		vid_out_buf->vb.sequence = dev->vid_out_seq_count;  in vivid_thread_vid_out_tick()
91 		if (dev->field_out == V4L2_FIELD_ALTERNATE) {  in vivid_thread_vid_out_tick()
99 		vid_out_buf->vb.timestamp.tv_sec += dev->time_wrap_offset;  in vivid_thread_vid_out_tick()
100 		vb2_buffer_done(&vid_out_buf->vb.vb2_buf, dev->dqbuf_error ?  in vivid_thread_vid_out_tick()
102 		dprintk(dev, 2, "vid_out buffer %d done\n",  in vivid_thread_vid_out_tick()
107 		if (dev->stream_sliced_vbi_out)  in vivid_thread_vid_out_tick()
108 			vivid_sliced_vbi_out_process(dev, vbi_out_buf);  in vivid_thread_vid_out_tick()
110 		vbi_out_buf->vb.sequence = dev->vbi_out_seq_count;  in vivid_thread_vid_out_tick()
112 		vbi_out_buf->vb.timestamp.tv_sec += dev->time_wrap_offset;  in vivid_thread_vid_out_tick()
113 		vb2_buffer_done(&vbi_out_buf->vb.vb2_buf, dev->dqbuf_error ?  in vivid_thread_vid_out_tick()
115 		dprintk(dev, 2, "vbi_out buffer %d done\n",  in vivid_thread_vid_out_tick()
118 	dev->dqbuf_error = false;  in vivid_thread_vid_out_tick()
123 	struct vivid_dev *dev = data;  in vivid_thread_vid_out()  local
133 	dprintk(dev, 1, "Video Output Thread Start\n");  in vivid_thread_vid_out()
138 	dev->out_seq_offset = 0;  in vivid_thread_vid_out()
139 	if (dev->seq_wrap)  in vivid_thread_vid_out()
140 		dev->out_seq_count = 0xffffff80U;  in vivid_thread_vid_out()
141 	dev->jiffies_vid_out = jiffies;  in vivid_thread_vid_out()
142 	dev->vid_out_seq_start = dev->vbi_out_seq_start = 0;  in vivid_thread_vid_out()
143 	dev->out_seq_resync = false;  in vivid_thread_vid_out()
150 		mutex_lock(&dev->mutex);  in vivid_thread_vid_out()
152 		if (dev->out_seq_resync) {  in vivid_thread_vid_out()
153 			dev->jiffies_vid_out = cur_jiffies;  in vivid_thread_vid_out()
154 			dev->out_seq_offset = dev->out_seq_count + 1;  in vivid_thread_vid_out()
155 			dev->out_seq_count = 0;  in vivid_thread_vid_out()
156 			dev->out_seq_resync = false;  in vivid_thread_vid_out()
158 		numerator = dev->timeperframe_vid_out.numerator;  in vivid_thread_vid_out()
159 		denominator = dev->timeperframe_vid_out.denominator;  in vivid_thread_vid_out()
161 		if (dev->field_out == V4L2_FIELD_ALTERNATE)  in vivid_thread_vid_out()
165 		jiffies_since_start = cur_jiffies - dev->jiffies_vid_out;  in vivid_thread_vid_out()
178 			dev->jiffies_vid_out = cur_jiffies;  in vivid_thread_vid_out()
179 			dev->out_seq_offset = buffers_since_start;  in vivid_thread_vid_out()
182 		dev->out_seq_count = buffers_since_start + dev->out_seq_offset;  in vivid_thread_vid_out()
183 		dev->vid_out_seq_count = dev->out_seq_count - dev->vid_out_seq_start;  in vivid_thread_vid_out()
184 		dev->vbi_out_seq_count = dev->out_seq_count - dev->vbi_out_seq_start;  in vivid_thread_vid_out()
186 		vivid_thread_vid_out_tick(dev);  in vivid_thread_vid_out()
187 		mutex_unlock(&dev->mutex);  in vivid_thread_vid_out()
196 		jiffies_since_start = jiffies - dev->jiffies_vid_out;  in vivid_thread_vid_out()
214 	dprintk(dev, 1, "Video Output Thread End\n");  in vivid_thread_vid_out()
218 static void vivid_grab_controls(struct vivid_dev *dev, bool grab)  in vivid_grab_controls()  argument
220 	v4l2_ctrl_grab(dev->ctrl_has_crop_out, grab);  in vivid_grab_controls()
221 	v4l2_ctrl_grab(dev->ctrl_has_compose_out, grab);  in vivid_grab_controls()
222 	v4l2_ctrl_grab(dev->ctrl_has_scaler_out, grab);  in vivid_grab_controls()
223 	v4l2_ctrl_grab(dev->ctrl_tx_mode, grab);  in vivid_grab_controls()
224 	v4l2_ctrl_grab(dev->ctrl_tx_rgb_range, grab);  in vivid_grab_controls()
227 int vivid_start_generating_vid_out(struct vivid_dev *dev, bool *pstreaming)  in vivid_start_generating_vid_out()  argument
229 	dprintk(dev, 1, "%s\n", __func__);  in vivid_start_generating_vid_out()
231 	if (dev->kthread_vid_out) {  in vivid_start_generating_vid_out()
232 		u32 seq_count = dev->out_seq_count + dev->seq_wrap * 128;  in vivid_start_generating_vid_out()
234 		if (pstreaming == &dev->vid_out_streaming)  in vivid_start_generating_vid_out()
235 			dev->vid_out_seq_start = seq_count;  in vivid_start_generating_vid_out()
237 			dev->vbi_out_seq_start = seq_count;  in vivid_start_generating_vid_out()
243 	dev->jiffies_vid_out = jiffies;  in vivid_start_generating_vid_out()
244 	dev->vid_out_seq_start = dev->seq_wrap * 128;  in vivid_start_generating_vid_out()
245 	dev->vbi_out_seq_start = dev->seq_wrap * 128;  in vivid_start_generating_vid_out()
247 	dev->kthread_vid_out = kthread_run(vivid_thread_vid_out, dev,  in vivid_start_generating_vid_out()
248 			"%s-vid-out", dev->v4l2_dev.name);  in vivid_start_generating_vid_out()
250 	if (IS_ERR(dev->kthread_vid_out)) {  in vivid_start_generating_vid_out()
251 		v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n");  in vivid_start_generating_vid_out()
252 		return PTR_ERR(dev->kthread_vid_out);  in vivid_start_generating_vid_out()
255 	vivid_grab_controls(dev, true);  in vivid_start_generating_vid_out()
257 	dprintk(dev, 1, "returning from %s\n", __func__);  in vivid_start_generating_vid_out()
261 void vivid_stop_generating_vid_out(struct vivid_dev *dev, bool *pstreaming)  in vivid_stop_generating_vid_out()  argument
263 	dprintk(dev, 1, "%s\n", __func__);  in vivid_stop_generating_vid_out()
265 	if (dev->kthread_vid_out == NULL)  in vivid_stop_generating_vid_out()
269 	if (pstreaming == &dev->vid_out_streaming) {  in vivid_stop_generating_vid_out()
271 		while (!list_empty(&dev->vid_out_active)) {  in vivid_stop_generating_vid_out()
274 			buf = list_entry(dev->vid_out_active.next,  in vivid_stop_generating_vid_out()
278 			dprintk(dev, 2, "vid_out buffer %d done\n",  in vivid_stop_generating_vid_out()
283 	if (pstreaming == &dev->vbi_out_streaming) {  in vivid_stop_generating_vid_out()
284 		while (!list_empty(&dev->vbi_out_active)) {  in vivid_stop_generating_vid_out()
287 			buf = list_entry(dev->vbi_out_active.next,  in vivid_stop_generating_vid_out()
291 			dprintk(dev, 2, "vbi_out buffer %d done\n",  in vivid_stop_generating_vid_out()
296 	if (dev->vid_out_streaming || dev->vbi_out_streaming)  in vivid_stop_generating_vid_out()
300 	vivid_grab_controls(dev, false);  in vivid_stop_generating_vid_out()
301 	mutex_unlock(&dev->mutex);  in vivid_stop_generating_vid_out()
302 	kthread_stop(dev->kthread_vid_out);  in vivid_stop_generating_vid_out()
303 	dev->kthread_vid_out = NULL;  in vivid_stop_generating_vid_out()
304 	mutex_lock(&dev->mutex);  in vivid_stop_generating_vid_out()