stk1160-v4l.c (ead5d1f4d877e92c051e1a1ade623d0d30e71619) stk1160-v4l.c (fbe04b49a54e31f4321d632270207f0e6304cd16)
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * STK1160 driver
4 *
5 * Copyright (C) 2012 Ezequiel Garcia
6 * <elezegarcia--a.t--gmail.com>
7 *
8 * Based on Easycap driver by R.M. Thomas

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253 mutex_unlock(&dev->v4l_lock);
254
255 return 0;
256
257out_uninit:
258 stk1160_uninit_isoc(dev);
259out_stop_hw:
260 usb_set_interface(dev->udev, 0, 0);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * STK1160 driver
4 *
5 * Copyright (C) 2012 Ezequiel Garcia
6 * <elezegarcia--a.t--gmail.com>
7 *
8 * Based on Easycap driver by R.M. Thomas

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253 mutex_unlock(&dev->v4l_lock);
254
255 return 0;
256
257out_uninit:
258 stk1160_uninit_isoc(dev);
259out_stop_hw:
260 usb_set_interface(dev->udev, 0, 0);
261 stk1160_clear_queue(dev);
261 stk1160_clear_queue(dev, VB2_BUF_STATE_QUEUED);
262
263 mutex_unlock(&dev->v4l_lock);
264
265 return rc;
266}
267
268/* Must be called with v4l_lock hold */
269static void stk1160_stop_hw(struct stk1160 *dev)

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301 * It is possible to keep buffers around using a module parameter.
302 * This is intended to avoid memory fragmentation.
303 */
304 if (!keep_buffers)
305 stk1160_free_isoc(dev);
306
307 stk1160_stop_hw(dev);
308
262
263 mutex_unlock(&dev->v4l_lock);
264
265 return rc;
266}
267
268/* Must be called with v4l_lock hold */
269static void stk1160_stop_hw(struct stk1160 *dev)

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301 * It is possible to keep buffers around using a module parameter.
302 * This is intended to avoid memory fragmentation.
303 */
304 if (!keep_buffers)
305 stk1160_free_isoc(dev);
306
307 stk1160_stop_hw(dev);
308
309 stk1160_clear_queue(dev);
309 stk1160_clear_queue(dev, VB2_BUF_STATE_ERROR);
310
311 stk1160_dbg("streaming stopped\n");
312
313 mutex_unlock(&dev->v4l_lock);
314
315 return 0;
316}
317

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740 .fops = &stk1160_fops,
741 .ioctl_ops = &stk1160_ioctl_ops,
742 .release = video_device_release_empty,
743};
744
745/********************************************************************/
746
747/* Must be called with both v4l_lock and vb_queue_lock hold */
310
311 stk1160_dbg("streaming stopped\n");
312
313 mutex_unlock(&dev->v4l_lock);
314
315 return 0;
316}
317

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740 .fops = &stk1160_fops,
741 .ioctl_ops = &stk1160_ioctl_ops,
742 .release = video_device_release_empty,
743};
744
745/********************************************************************/
746
747/* Must be called with both v4l_lock and vb_queue_lock hold */
748void stk1160_clear_queue(struct stk1160 *dev)
748void stk1160_clear_queue(struct stk1160 *dev, enum vb2_buffer_state vb2_state)
749{
750 struct stk1160_buffer *buf;
751 unsigned long flags;
752
753 /* Release all active buffers */
754 spin_lock_irqsave(&dev->buf_lock, flags);
755 while (!list_empty(&dev->avail_bufs)) {
756 buf = list_first_entry(&dev->avail_bufs,
757 struct stk1160_buffer, list);
758 list_del(&buf->list);
749{
750 struct stk1160_buffer *buf;
751 unsigned long flags;
752
753 /* Release all active buffers */
754 spin_lock_irqsave(&dev->buf_lock, flags);
755 while (!list_empty(&dev->avail_bufs)) {
756 buf = list_first_entry(&dev->avail_bufs,
757 struct stk1160_buffer, list);
758 list_del(&buf->list);
759 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
759 vb2_buffer_done(&buf->vb.vb2_buf, vb2_state);
760 stk1160_dbg("buffer [%p/%d] aborted\n",
761 buf, buf->vb.vb2_buf.index);
762 }
763
764 /* It's important to release the current buffer */
765 if (dev->isoc_ctl.buf) {
766 buf = dev->isoc_ctl.buf;
767 dev->isoc_ctl.buf = NULL;
768
760 stk1160_dbg("buffer [%p/%d] aborted\n",
761 buf, buf->vb.vb2_buf.index);
762 }
763
764 /* It's important to release the current buffer */
765 if (dev->isoc_ctl.buf) {
766 buf = dev->isoc_ctl.buf;
767 dev->isoc_ctl.buf = NULL;
768
769 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
769 vb2_buffer_done(&buf->vb.vb2_buf, vb2_state);
770 stk1160_dbg("buffer [%p/%d] aborted\n",
771 buf, buf->vb.vb2_buf.index);
772 }
773 spin_unlock_irqrestore(&dev->buf_lock, flags);
774}
775
776int stk1160_vb2_setup(struct stk1160 *dev)
777{

--- 66 unchanged lines hidden --- 		770 stk1160_dbg("buffer [%p/%d] aborted\n",
771 buf, buf->vb.vb2_buf.index);
772 }
773 spin_unlock_irqrestore(&dev->buf_lock, flags);
774}
775
776int stk1160_vb2_setup(struct stk1160 *dev)
777{

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