[linux-2.6-block.git] / drivers / media / platform / vivid / vivid-vbi-cap.c

/*
 * vivid-vbi-cap.c - vbi capture support functions.
 *
 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 *
 * This program is free software; you may redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>

#include "vivid-core.h"
#include "vivid-kthread-cap.h"
#include "vivid-vbi-cap.h"
#include "vivid-vbi-gen.h"

static void vivid_sliced_vbi_cap_fill(struct vivid_dev *dev, unsigned seqnr)
{
	struct vivid_vbi_gen_data *vbi_gen = &dev->vbi_gen;
	bool is_60hz = dev->std_cap & V4L2_STD_525_60;

	vivid_vbi_gen_sliced(vbi_gen, is_60hz, seqnr);

	if (!is_60hz) {
		if (dev->loop_video) {
			if (dev->vbi_out_have_wss) {
				vbi_gen->data[12].data[0] = dev->vbi_out_wss[0];
				vbi_gen->data[12].data[1] = dev->vbi_out_wss[1];
			} else {
				vbi_gen->data[12].id = 0;
			}
		} else {
			switch (tpg_g_video_aspect(&dev->tpg)) {
			case TPG_VIDEO_ASPECT_14X9_CENTRE:
				vbi_gen->data[12].data[0] = 0x01;
				break;
			case TPG_VIDEO_ASPECT_16X9_CENTRE:
				vbi_gen->data[12].data[0] = 0x0b;
				break;
			case TPG_VIDEO_ASPECT_16X9_ANAMORPHIC:
				vbi_gen->data[12].data[0] = 0x07;
				break;
			case TPG_VIDEO_ASPECT_4X3:
			default:
				vbi_gen->data[12].data[0] = 0x08;
				break;
			}
		}
	} else if (dev->loop_video && is_60hz) {
		if (dev->vbi_out_have_cc[0]) {
			vbi_gen->data[0].data[0] = dev->vbi_out_cc[0][0];
			vbi_gen->data[0].data[1] = dev->vbi_out_cc[0][1];
		} else {
			vbi_gen->data[0].id = 0;
		}
		if (dev->vbi_out_have_cc[1]) {
			vbi_gen->data[1].data[0] = dev->vbi_out_cc[1][0];
			vbi_gen->data[1].data[1] = dev->vbi_out_cc[1][1];
		} else {
			vbi_gen->data[1].id = 0;
		}
	}
}

static void vivid_g_fmt_vbi_cap(struct vivid_dev *dev, struct v4l2_vbi_format *vbi)
{
	bool is_60hz = dev->std_cap & V4L2_STD_525_60;

	vbi->sampling_rate = 27000000;
	vbi->offset = 24;
	vbi->samples_per_line = 1440;
	vbi->sample_format = V4L2_PIX_FMT_GREY;
	vbi->start[0] = is_60hz ? V4L2_VBI_ITU_525_F1_START + 9 : V4L2_VBI_ITU_625_F1_START + 5;
	vbi->start[1] = is_60hz ? V4L2_VBI_ITU_525_F2_START + 9 : V4L2_VBI_ITU_625_F2_START + 5;
	vbi->count[0] = vbi->count[1] = is_60hz ? 12 : 18;
	vbi->flags = dev->vbi_cap_interlaced ? V4L2_VBI_INTERLACED : 0;
	vbi->reserved[0] = 0;
	vbi->reserved[1] = 0;
}

void vivid_raw_vbi_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf)
{
	struct v4l2_vbi_format vbi;
	u8 *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);

	vivid_g_fmt_vbi_cap(dev, &vbi);
	buf->vb.sequence = dev->vbi_cap_seq_count;
	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
		buf->vb.sequence /= 2;

	vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence);

	memset(vbuf, 0x10, vb2_plane_size(&buf->vb.vb2_buf, 0));

	if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode))
		vivid_vbi_gen_raw(&dev->vbi_gen, &vbi, vbuf);

	v4l2_get_timestamp(&buf->vb.timestamp);
	buf->vb.timestamp.tv_sec += dev->time_wrap_offset;
}


void vivid_sliced_vbi_cap_process(struct vivid_dev *dev,
			struct vivid_buffer *buf)
{
	struct v4l2_sliced_vbi_data *vbuf =
			vb2_plane_vaddr(&buf->vb.vb2_buf, 0);

	buf->vb.sequence = dev->vbi_cap_seq_count;
	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
		buf->vb.sequence /= 2;

	vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence);

	memset(vbuf, 0, vb2_plane_size(&buf->vb.vb2_buf, 0));
	if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
		unsigned i;

		for (i = 0; i < 25; i++)
			vbuf[i] = dev->vbi_gen.data[i];
	}

	v4l2_get_timestamp(&buf->vb.timestamp);
	buf->vb.timestamp.tv_sec += dev->time_wrap_offset;
}

static int vbi_cap_queue_setup(struct vb2_queue *vq, const void *parg,
		       unsigned *nbuffers, unsigned *nplanes,
		       unsigned sizes[], void *alloc_ctxs[])
{
	struct vivid_dev *dev = vb2_get_drv_priv(vq);
	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
		36 * sizeof(struct v4l2_sliced_vbi_data) :
		1440 * 2 * (is_60hz ? 12 : 18);

	if (!vivid_is_sdtv_cap(dev))
		return -EINVAL;

	sizes[0] = size;

	if (vq->num_buffers + *nbuffers < 2)
		*nbuffers = 2 - vq->num_buffers;

	*nplanes = 1;
	return 0;
}

static int vbi_cap_buf_prepare(struct vb2_buffer *vb)
{
	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	unsigned size = vb->vb2_queue->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
		36 * sizeof(struct v4l2_sliced_vbi_data) :
		1440 * 2 * (is_60hz ? 12 : 18);

	dprintk(dev, 1, "%s\n", __func__);

	if (dev->buf_prepare_error) {
		/*
		 * Error injection: test what happens if buf_prepare() returns
		 * an error.
		 */
		dev->buf_prepare_error = false;
		return -EINVAL;
	}
	if (vb2_plane_size(vb, 0) < size) {
		dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
				__func__, vb2_plane_size(vb, 0), size);
		return -EINVAL;
	}
	vb2_set_plane_payload(vb, 0, size);

	return 0;
}

static void vbi_cap_buf_queue(struct vb2_buffer *vb)
{
	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);

	dprintk(dev, 1, "%s\n", __func__);

	spin_lock(&dev->slock);
	list_add_tail(&buf->list, &dev->vbi_cap_active);
	spin_unlock(&dev->slock);
}

static int vbi_cap_start_streaming(struct vb2_queue *vq, unsigned count)
{
	struct vivid_dev *dev = vb2_get_drv_priv(vq);
	int err;

	dprintk(dev, 1, "%s\n", __func__);
	dev->vbi_cap_seq_count = 0;
	if (dev->start_streaming_error) {
		dev->start_streaming_error = false;
		err = -EINVAL;
	} else {
		err = vivid_start_generating_vid_cap(dev, &dev->vbi_cap_streaming);
	}
	if (err) {
		struct vivid_buffer *buf, *tmp;

		list_for_each_entry_safe(buf, tmp, &dev->vbi_cap_active, list) {
			list_del(&buf->list);
			vb2_buffer_done(&buf->vb.vb2_buf,
					VB2_BUF_STATE_QUEUED);
		}
	}
	return err;
}

/* abort streaming and wait for last buffer */
static void vbi_cap_stop_streaming(struct vb2_queue *vq)
{
	struct vivid_dev *dev = vb2_get_drv_priv(vq);

	dprintk(dev, 1, "%s\n", __func__);
	vivid_stop_generating_vid_cap(dev, &dev->vbi_cap_streaming);
}

const struct vb2_ops vivid_vbi_cap_qops = {
	.queue_setup		= vbi_cap_queue_setup,
	.buf_prepare		= vbi_cap_buf_prepare,
	.buf_queue		= vbi_cap_buf_queue,
	.start_streaming	= vbi_cap_start_streaming,
	.stop_streaming		= vbi_cap_stop_streaming,
	.wait_prepare		= vb2_ops_wait_prepare,
	.wait_finish		= vb2_ops_wait_finish,
};

int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
					struct v4l2_format *f)
{
	struct vivid_dev *dev = video_drvdata(file);
	struct v4l2_vbi_format *vbi = &f->fmt.vbi;

	if (!vivid_is_sdtv_cap(dev) || !dev->has_raw_vbi_cap)
		return -EINVAL;

	vivid_g_fmt_vbi_cap(dev, vbi);
	return 0;
}

int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
					struct v4l2_format *f)
{
	struct vivid_dev *dev = video_drvdata(file);
	int ret = vidioc_g_fmt_vbi_cap(file, priv, f);

	if (ret)
		return ret;
	if (dev->stream_sliced_vbi_cap && vb2_is_busy(&dev->vb_vbi_cap_q))
		return -EBUSY;
	dev->stream_sliced_vbi_cap = false;
	dev->vbi_cap_dev.queue->type = V4L2_BUF_TYPE_VBI_CAPTURE;
	return 0;
}

void vivid_fill_service_lines(struct v4l2_sliced_vbi_format *vbi, u32 service_set)
{
	vbi->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
	vbi->service_set = service_set;
	memset(vbi->service_lines, 0, sizeof(vbi->service_lines));
	memset(vbi->reserved, 0, sizeof(vbi->reserved));

	if (vbi->service_set == 0)
		return;

	if (vbi->service_set & V4L2_SLICED_CAPTION_525) {
		vbi->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
		vbi->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
	}
	if (vbi->service_set & V4L2_SLICED_WSS_625) {
		unsigned i;

		for (i = 7; i <= 18; i++)
			vbi->service_lines[0][i] =
			vbi->service_lines[1][i] = V4L2_SLICED_TELETEXT_B;
		vbi->service_lines[0][23] = V4L2_SLICED_WSS_625;
	}
}

int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct vivid_dev *dev = video_drvdata(file);
	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;

	if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap)
		return -EINVAL;

	vivid_fill_service_lines(vbi, dev->service_set_cap);
	return 0;
}

int vidioc_try_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct vivid_dev *dev = video_drvdata(file);
	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	u32 service_set = vbi->service_set;

	if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap)
		return -EINVAL;

	service_set &= is_60hz ? V4L2_SLICED_CAPTION_525 :
				 V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
	vivid_fill_service_lines(vbi, service_set);
	return 0;
}

int vidioc_s_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct vivid_dev *dev = video_drvdata(file);
	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
	int ret = vidioc_try_fmt_sliced_vbi_cap(file, fh, fmt);

	if (ret)
		return ret;
	if (!dev->stream_sliced_vbi_cap && vb2_is_busy(&dev->vb_vbi_cap_q))
		return -EBUSY;
	dev->service_set_cap = vbi->service_set;
	dev->stream_sliced_vbi_cap = true;
	dev->vbi_cap_dev.queue->type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
	return 0;
}

int vidioc_g_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_sliced_vbi_cap *cap)
{
	struct vivid_dev *dev = video_drvdata(file);
	struct video_device *vdev = video_devdata(file);
	bool is_60hz;

	if (vdev->vfl_dir == VFL_DIR_RX) {
		is_60hz = dev->std_cap & V4L2_STD_525_60;
		if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap ||
		    cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
			return -EINVAL;
	} else {
		is_60hz = dev->std_out & V4L2_STD_525_60;
		if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out ||
		    cap->type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT)
			return -EINVAL;
	}

	cap->service_set = is_60hz ? V4L2_SLICED_CAPTION_525 :
				     V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
	if (is_60hz) {
		cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
		cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
	} else {
		unsigned i;

		for (i = 7; i <= 18; i++)
			cap->service_lines[0][i] =
			cap->service_lines[1][i] = V4L2_SLICED_TELETEXT_B;
		cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
	}
	return 0;
}
Commit	Line	Data
7bb70caa HV	1	/*
	2	* vivid-vbi-cap.c - vbi capture support functions.
	3	*
	4	* Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
	5	*
	6	* This program is free software; you may redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; version 2 of the License.
	9	*
	10	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	11	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	12	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	13	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	14	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	15	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	16	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	17	* SOFTWARE.
	18	*/
	19
	20	#include <linux/errno.h>
	21	#include <linux/kernel.h>
	22	#include <linux/videodev2.h>
	23	#include <media/v4l2-common.h>
	24
	25	#include "vivid-core.h"
	26	#include "vivid-kthread-cap.h"
	27	#include "vivid-vbi-cap.h"
	28	#include "vivid-vbi-gen.h"
	29
	30	static void vivid_sliced_vbi_cap_fill(struct vivid_dev *dev, unsigned seqnr)
	31	{
	32	struct vivid_vbi_gen_data *vbi_gen = &dev->vbi_gen;
	33	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	34
	35	vivid_vbi_gen_sliced(vbi_gen, is_60hz, seqnr);
	36
	37	if (!is_60hz) {
	38	if (dev->loop_video) {
	39	if (dev->vbi_out_have_wss) {
62f28725 HV	40	vbi_gen->data[12].data[0] = dev->vbi_out_wss[0];
62f28725 HV	41	vbi_gen->data[12].data[1] = dev->vbi_out_wss[1];
7bb70caa	42	} else {
62f28725	43	vbi_gen->data[12].id = 0;
7bb70caa HV	44	}
	45	} else {
	46	switch (tpg_g_video_aspect(&dev->tpg)) {
	47	case TPG_VIDEO_ASPECT_14X9_CENTRE:
62f28725	48	vbi_gen->data[12].data[0] = 0x01;
7bb70caa HV	49	break;
7bb70caa HV	50	case TPG_VIDEO_ASPECT_16X9_CENTRE:
62f28725	51	vbi_gen->data[12].data[0] = 0x0b;
7bb70caa HV	52	break;
7bb70caa HV	53	case TPG_VIDEO_ASPECT_16X9_ANAMORPHIC:
62f28725	54	vbi_gen->data[12].data[0] = 0x07;
7bb70caa HV	55	break;
	56	case TPG_VIDEO_ASPECT_4X3:
	57	default:
62f28725	58	vbi_gen->data[12].data[0] = 0x08;
7bb70caa HV	59	break;
	60	}
	61	}
	62	} else if (dev->loop_video && is_60hz) {
	63	if (dev->vbi_out_have_cc[0]) {
	64	vbi_gen->data[0].data[0] = dev->vbi_out_cc[0][0];
	65	vbi_gen->data[0].data[1] = dev->vbi_out_cc[0][1];
	66	} else {
	67	vbi_gen->data[0].id = 0;
	68	}
	69	if (dev->vbi_out_have_cc[1]) {
	70	vbi_gen->data[1].data[0] = dev->vbi_out_cc[1][0];
	71	vbi_gen->data[1].data[1] = dev->vbi_out_cc[1][1];
	72	} else {
	73	vbi_gen->data[1].id = 0;
	74	}
	75	}
	76	}
	77
	78	static void vivid_g_fmt_vbi_cap(struct vivid_dev dev, struct v4l2_vbi_format vbi)
	79	{
	80	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	81
	82	vbi->sampling_rate = 27000000;
	83	vbi->offset = 24;
	84	vbi->samples_per_line = 1440;
	85	vbi->sample_format = V4L2_PIX_FMT_GREY;
62f28725 HV	86	vbi->start[0] = is_60hz ? V4L2_VBI_ITU_525_F1_START + 9 : V4L2_VBI_ITU_625_F1_START + 5;
62f28725 HV	87	vbi->start[1] = is_60hz ? V4L2_VBI_ITU_525_F2_START + 9 : V4L2_VBI_ITU_625_F2_START + 5;
7bb70caa HV	88	vbi->count[0] = vbi->count[1] = is_60hz ? 12 : 18;
	89	vbi->flags = dev->vbi_cap_interlaced ? V4L2_VBI_INTERLACED : 0;
	90	vbi->reserved[0] = 0;
	91	vbi->reserved[1] = 0;
	92	}
	93
	94	void vivid_raw_vbi_cap_process(struct vivid_dev dev, struct vivid_buffer buf)
	95	{
	96	struct v4l2_vbi_format vbi;
2d700715	97	u8 *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
7bb70caa HV	98
7bb70caa HV	99	vivid_g_fmt_vbi_cap(dev, &vbi);
2d700715	100	buf->vb.sequence = dev->vbi_cap_seq_count;
7bb70caa	101	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
2d700715	102	buf->vb.sequence /= 2;
7bb70caa	103
2d700715	104	vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence);
7bb70caa	105
2d700715	106	memset(vbuf, 0x10, vb2_plane_size(&buf->vb.vb2_buf, 0));
7bb70caa HV	107
	108	if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode))
	109	vivid_vbi_gen_raw(&dev->vbi_gen, &vbi, vbuf);
	110
2d700715 JS	111	v4l2_get_timestamp(&buf->vb.timestamp);
2d700715 JS	112	buf->vb.timestamp.tv_sec += dev->time_wrap_offset;
7bb70caa HV	113	}
	114
	115
2d700715 JS	116	void vivid_sliced_vbi_cap_process(struct vivid_dev *dev,
2d700715 JS	117	struct vivid_buffer *buf)
7bb70caa	118	{
2d700715 JS	119	struct v4l2_sliced_vbi_data *vbuf =
2d700715 JS	120	vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
7bb70caa	121
2d700715	122	buf->vb.sequence = dev->vbi_cap_seq_count;
7bb70caa	123	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
2d700715	124	buf->vb.sequence /= 2;
7bb70caa	125
2d700715	126	vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence);
7bb70caa	127
2d700715	128	memset(vbuf, 0, vb2_plane_size(&buf->vb.vb2_buf, 0));
7bb70caa	129	if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
62f28725 HV	130	unsigned i;
	131
	132	for (i = 0; i < 25; i++)
	133	vbuf[i] = dev->vbi_gen.data[i];
7bb70caa HV	134	}
7bb70caa HV	135
2d700715 JS	136	v4l2_get_timestamp(&buf->vb.timestamp);
2d700715 JS	137	buf->vb.timestamp.tv_sec += dev->time_wrap_offset;
7bb70caa HV	138	}
7bb70caa HV	139
33119e80 JS	140	static int vbi_cap_queue_setup(struct vb2_queue vq, const void parg,
	141	unsigned nbuffers, unsigned nplanes,
	142	unsigned sizes[], void *alloc_ctxs[])
7bb70caa HV	143	{
	144	struct vivid_dev *dev = vb2_get_drv_priv(vq);
	145	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	146	unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
	147	36 * sizeof(struct v4l2_sliced_vbi_data) :
	148	1440 * 2 * (is_60hz ? 12 : 18);
	149
	150	if (!vivid_is_sdtv_cap(dev))
	151	return -EINVAL;
	152
	153	sizes[0] = size;
	154
	155	if (vq->num_buffers + *nbuffers < 2)
	156	*nbuffers = 2 - vq->num_buffers;
	157
	158	*nplanes = 1;
	159	return 0;
	160	}
	161
	162	static int vbi_cap_buf_prepare(struct vb2_buffer *vb)
	163	{
	164	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
	165	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	166	unsigned size = vb->vb2_queue->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
	167	36 * sizeof(struct v4l2_sliced_vbi_data) :
	168	1440 * 2 * (is_60hz ? 12 : 18);
	169
	170	dprintk(dev, 1, "%s\n", __func__);
	171
	172	if (dev->buf_prepare_error) {
	173	/*
	174	* Error injection: test what happens if buf_prepare() returns
	175	* an error.
	176	*/
	177	dev->buf_prepare_error = false;
	178	return -EINVAL;
	179	}
	180	if (vb2_plane_size(vb, 0) < size) {
	181	dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
	182	__func__, vb2_plane_size(vb, 0), size);
	183	return -EINVAL;
	184	}
	185	vb2_set_plane_payload(vb, 0, size);
	186
	187	return 0;
	188	}
	189
	190	static void vbi_cap_buf_queue(struct vb2_buffer *vb)
	191	{
2d700715	192	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
7bb70caa	193	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
2d700715	194	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
7bb70caa HV	195
	196	dprintk(dev, 1, "%s\n", __func__);
	197
	198	spin_lock(&dev->slock);
	199	list_add_tail(&buf->list, &dev->vbi_cap_active);
	200	spin_unlock(&dev->slock);
	201	}
	202
	203	static int vbi_cap_start_streaming(struct vb2_queue *vq, unsigned count)
	204	{
	205	struct vivid_dev *dev = vb2_get_drv_priv(vq);
	206	int err;
	207
	208	dprintk(dev, 1, "%s\n", __func__);
	209	dev->vbi_cap_seq_count = 0;
	210	if (dev->start_streaming_error) {
	211	dev->start_streaming_error = false;
	212	err = -EINVAL;
	213	} else {
	214	err = vivid_start_generating_vid_cap(dev, &dev->vbi_cap_streaming);
	215	}
	216	if (err) {
	217	struct vivid_buffer buf, tmp;
	218
	219	list_for_each_entry_safe(buf, tmp, &dev->vbi_cap_active, list) {
	220	list_del(&buf->list);
2d700715 JS	221	vb2_buffer_done(&buf->vb.vb2_buf,
2d700715 JS	222	VB2_BUF_STATE_QUEUED);
7bb70caa HV	223	}
	224	}
	225	return err;
	226	}
	227
	228	/* abort streaming and wait for last buffer */
	229	static void vbi_cap_stop_streaming(struct vb2_queue *vq)
	230	{
	231	struct vivid_dev *dev = vb2_get_drv_priv(vq);
	232
	233	dprintk(dev, 1, "%s\n", __func__);
	234	vivid_stop_generating_vid_cap(dev, &dev->vbi_cap_streaming);
	235	}
	236
	237	const struct vb2_ops vivid_vbi_cap_qops = {
	238	.queue_setup = vbi_cap_queue_setup,
	239	.buf_prepare = vbi_cap_buf_prepare,
	240	.buf_queue = vbi_cap_buf_queue,
	241	.start_streaming = vbi_cap_start_streaming,
	242	.stop_streaming = vbi_cap_stop_streaming,
6dfa5131 PL	243	.wait_prepare = vb2_ops_wait_prepare,
6dfa5131 PL	244	.wait_finish = vb2_ops_wait_finish,
7bb70caa HV	245	};
	246
	247	int vidioc_g_fmt_vbi_cap(struct file file, void priv,
	248	struct v4l2_format *f)
	249	{
	250	struct vivid_dev *dev = video_drvdata(file);
	251	struct v4l2_vbi_format *vbi = &f->fmt.vbi;
	252
	253	if (!vivid_is_sdtv_cap(dev) \|\| !dev->has_raw_vbi_cap)
	254	return -EINVAL;
	255
	256	vivid_g_fmt_vbi_cap(dev, vbi);
	257	return 0;
	258	}
	259
	260	int vidioc_s_fmt_vbi_cap(struct file file, void priv,
	261	struct v4l2_format *f)
	262	{
	263	struct vivid_dev *dev = video_drvdata(file);
	264	int ret = vidioc_g_fmt_vbi_cap(file, priv, f);
	265
	266	if (ret)
	267	return ret;
	268	if (dev->stream_sliced_vbi_cap && vb2_is_busy(&dev->vb_vbi_cap_q))
	269	return -EBUSY;
	270	dev->stream_sliced_vbi_cap = false;
	271	dev->vbi_cap_dev.queue->type = V4L2_BUF_TYPE_VBI_CAPTURE;
	272	return 0;
	273	}
	274
	275	void vivid_fill_service_lines(struct v4l2_sliced_vbi_format *vbi, u32 service_set)
	276	{
	277	vbi->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
	278	vbi->service_set = service_set;
	279	memset(vbi->service_lines, 0, sizeof(vbi->service_lines));
	280	memset(vbi->reserved, 0, sizeof(vbi->reserved));
	281
	282	if (vbi->service_set == 0)
	283	return;
	284
	285	if (vbi->service_set & V4L2_SLICED_CAPTION_525) {
	286	vbi->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
	287	vbi->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
	288	}
62f28725 HV	289	if (vbi->service_set & V4L2_SLICED_WSS_625) {
	290	unsigned i;
	291
	292	for (i = 7; i <= 18; i++)
	293	vbi->service_lines[0][i] =
	294	vbi->service_lines[1][i] = V4L2_SLICED_TELETEXT_B;
7bb70caa	295	vbi->service_lines[0][23] = V4L2_SLICED_WSS_625;
62f28725	296	}
7bb70caa HV	297	}
	298
	299	int vidioc_g_fmt_sliced_vbi_cap(struct file file, void fh, struct v4l2_format *fmt)
	300	{
	301	struct vivid_dev *dev = video_drvdata(file);
	302	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
	303
	304	if (!vivid_is_sdtv_cap(dev) \|\| !dev->has_sliced_vbi_cap)
	305	return -EINVAL;
	306
	307	vivid_fill_service_lines(vbi, dev->service_set_cap);
	308	return 0;
	309	}
	310
	311	int vidioc_try_fmt_sliced_vbi_cap(struct file file, void fh, struct v4l2_format *fmt)
	312	{
	313	struct vivid_dev *dev = video_drvdata(file);
	314	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
	315	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	316	u32 service_set = vbi->service_set;
	317
	318	if (!vivid_is_sdtv_cap(dev) \|\| !dev->has_sliced_vbi_cap)
	319	return -EINVAL;
	320
62f28725 HV	321	service_set &= is_60hz ? V4L2_SLICED_CAPTION_525 :
62f28725 HV	322	V4L2_SLICED_WSS_625 \| V4L2_SLICED_TELETEXT_B;
7bb70caa HV	323	vivid_fill_service_lines(vbi, service_set);
	324	return 0;
	325	}
	326
	327	int vidioc_s_fmt_sliced_vbi_cap(struct file file, void fh, struct v4l2_format *fmt)
	328	{
	329	struct vivid_dev *dev = video_drvdata(file);
	330	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
	331	int ret = vidioc_try_fmt_sliced_vbi_cap(file, fh, fmt);
	332
	333	if (ret)
	334	return ret;
	335	if (!dev->stream_sliced_vbi_cap && vb2_is_busy(&dev->vb_vbi_cap_q))
	336	return -EBUSY;
	337	dev->service_set_cap = vbi->service_set;
	338	dev->stream_sliced_vbi_cap = true;
	339	dev->vbi_cap_dev.queue->type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
	340	return 0;
	341	}
	342
	343	int vidioc_g_sliced_vbi_cap(struct file file, void fh, struct v4l2_sliced_vbi_cap *cap)
	344	{
	345	struct vivid_dev *dev = video_drvdata(file);
	346	struct video_device *vdev = video_devdata(file);
	347	bool is_60hz;
	348
	349	if (vdev->vfl_dir == VFL_DIR_RX) {
	350	is_60hz = dev->std_cap & V4L2_STD_525_60;
	351	if (!vivid_is_sdtv_cap(dev) \|\| !dev->has_sliced_vbi_cap \|\|
	352	cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
	353	return -EINVAL;
	354	} else {
	355	is_60hz = dev->std_out & V4L2_STD_525_60;
	356	if (!vivid_is_svid_out(dev) \|\| !dev->has_sliced_vbi_out \|\|
	357	cap->type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT)
	358	return -EINVAL;
	359	}
	360
62f28725 HV	361	cap->service_set = is_60hz ? V4L2_SLICED_CAPTION_525 :
62f28725 HV	362	V4L2_SLICED_WSS_625 \| V4L2_SLICED_TELETEXT_B;
7bb70caa HV	363	if (is_60hz) {
	364	cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
	365	cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
	366	} else {
62f28725 HV	367	unsigned i;
	368
	369	for (i = 7; i <= 18; i++)
	370	cap->service_lines[0][i] =
	371	cap->service_lines[1][i] = V4L2_SLICED_TELETEXT_B;
7bb70caa HV	372	cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
	373	}
	374	return 0;
	375	}