[deliverable/linux.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);

	buf->vb.vb2_buf.timestamp = ktime_get_ns() + 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];
	}

	buf->vb.vb2_buf.timestamp = ktime_get_ns() + dev->time_wrap_offset;
}

static int vbi_cap_queue_setup(struct vb2_queue *vq,
		       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
d6dd645e	111	buf->vb.vb2_buf.timestamp = ktime_get_ns() + dev->time_wrap_offset;
7bb70caa HV	112	}
	113
	114
2d700715 JS	115	void vivid_sliced_vbi_cap_process(struct vivid_dev *dev,
2d700715 JS	116	struct vivid_buffer *buf)
7bb70caa	117	{
2d700715 JS	118	struct v4l2_sliced_vbi_data *vbuf =
2d700715 JS	119	vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
7bb70caa	120
2d700715	121	buf->vb.sequence = dev->vbi_cap_seq_count;
7bb70caa	122	if (dev->field_cap == V4L2_FIELD_ALTERNATE)
2d700715	123	buf->vb.sequence /= 2;
7bb70caa	124
2d700715	125	vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence);
7bb70caa	126
2d700715	127	memset(vbuf, 0, vb2_plane_size(&buf->vb.vb2_buf, 0));
7bb70caa	128	if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
62f28725 HV	129	unsigned i;
	130
	131	for (i = 0; i < 25; i++)
	132	vbuf[i] = dev->vbi_gen.data[i];
7bb70caa HV	133	}
7bb70caa HV	134
d6dd645e	135	buf->vb.vb2_buf.timestamp = ktime_get_ns() + dev->time_wrap_offset;
7bb70caa HV	136	}
7bb70caa HV	137
df9ecb0c	138	static int vbi_cap_queue_setup(struct vb2_queue *vq,
33119e80 JS	139	unsigned nbuffers, unsigned nplanes,
33119e80 JS	140	unsigned sizes[], void *alloc_ctxs[])
7bb70caa HV	141	{
	142	struct vivid_dev *dev = vb2_get_drv_priv(vq);
	143	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	144	unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
	145	36 * sizeof(struct v4l2_sliced_vbi_data) :
	146	1440 * 2 * (is_60hz ? 12 : 18);
	147
	148	if (!vivid_is_sdtv_cap(dev))
	149	return -EINVAL;
	150
	151	sizes[0] = size;
	152
	153	if (vq->num_buffers + *nbuffers < 2)
	154	*nbuffers = 2 - vq->num_buffers;
	155
	156	*nplanes = 1;
	157	return 0;
	158	}
	159
	160	static int vbi_cap_buf_prepare(struct vb2_buffer *vb)
	161	{
	162	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
	163	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	164	unsigned size = vb->vb2_queue->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
	165	36 * sizeof(struct v4l2_sliced_vbi_data) :
	166	1440 * 2 * (is_60hz ? 12 : 18);
	167
	168	dprintk(dev, 1, "%s\n", __func__);
	169
	170	if (dev->buf_prepare_error) {
	171	/*
	172	* Error injection: test what happens if buf_prepare() returns
	173	* an error.
	174	*/
	175	dev->buf_prepare_error = false;
	176	return -EINVAL;
	177	}
	178	if (vb2_plane_size(vb, 0) < size) {
	179	dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
	180	__func__, vb2_plane_size(vb, 0), size);
	181	return -EINVAL;
	182	}
	183	vb2_set_plane_payload(vb, 0, size);
	184
	185	return 0;
	186	}
	187
	188	static void vbi_cap_buf_queue(struct vb2_buffer *vb)
	189	{
2d700715	190	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
7bb70caa	191	struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
2d700715	192	struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
7bb70caa HV	193
	194	dprintk(dev, 1, "%s\n", __func__);
	195
	196	spin_lock(&dev->slock);
	197	list_add_tail(&buf->list, &dev->vbi_cap_active);
	198	spin_unlock(&dev->slock);
	199	}
	200
	201	static int vbi_cap_start_streaming(struct vb2_queue *vq, unsigned count)
	202	{
	203	struct vivid_dev *dev = vb2_get_drv_priv(vq);
	204	int err;
	205
	206	dprintk(dev, 1, "%s\n", __func__);
	207	dev->vbi_cap_seq_count = 0;
	208	if (dev->start_streaming_error) {
	209	dev->start_streaming_error = false;
	210	err = -EINVAL;
	211	} else {
	212	err = vivid_start_generating_vid_cap(dev, &dev->vbi_cap_streaming);
	213	}
	214	if (err) {
	215	struct vivid_buffer buf, tmp;
	216
	217	list_for_each_entry_safe(buf, tmp, &dev->vbi_cap_active, list) {
	218	list_del(&buf->list);
2d700715 JS	219	vb2_buffer_done(&buf->vb.vb2_buf,
2d700715 JS	220	VB2_BUF_STATE_QUEUED);
7bb70caa HV	221	}
	222	}
	223	return err;
	224	}
	225
	226	/* abort streaming and wait for last buffer */
	227	static void vbi_cap_stop_streaming(struct vb2_queue *vq)
	228	{
	229	struct vivid_dev *dev = vb2_get_drv_priv(vq);
	230
	231	dprintk(dev, 1, "%s\n", __func__);
	232	vivid_stop_generating_vid_cap(dev, &dev->vbi_cap_streaming);
	233	}
	234
	235	const struct vb2_ops vivid_vbi_cap_qops = {
	236	.queue_setup = vbi_cap_queue_setup,
	237	.buf_prepare = vbi_cap_buf_prepare,
	238	.buf_queue = vbi_cap_buf_queue,
	239	.start_streaming = vbi_cap_start_streaming,
	240	.stop_streaming = vbi_cap_stop_streaming,
6dfa5131 PL	241	.wait_prepare = vb2_ops_wait_prepare,
6dfa5131 PL	242	.wait_finish = vb2_ops_wait_finish,
7bb70caa HV	243	};
	244
	245	int vidioc_g_fmt_vbi_cap(struct file file, void priv,
	246	struct v4l2_format *f)
	247	{
	248	struct vivid_dev *dev = video_drvdata(file);
	249	struct v4l2_vbi_format *vbi = &f->fmt.vbi;
	250
	251	if (!vivid_is_sdtv_cap(dev) \|\| !dev->has_raw_vbi_cap)
	252	return -EINVAL;
	253
	254	vivid_g_fmt_vbi_cap(dev, vbi);
	255	return 0;
	256	}
	257
	258	int vidioc_s_fmt_vbi_cap(struct file file, void priv,
	259	struct v4l2_format *f)
	260	{
	261	struct vivid_dev *dev = video_drvdata(file);
	262	int ret = vidioc_g_fmt_vbi_cap(file, priv, f);
	263
	264	if (ret)
	265	return ret;
	266	if (dev->stream_sliced_vbi_cap && vb2_is_busy(&dev->vb_vbi_cap_q))
	267	return -EBUSY;
	268	dev->stream_sliced_vbi_cap = false;
	269	dev->vbi_cap_dev.queue->type = V4L2_BUF_TYPE_VBI_CAPTURE;
	270	return 0;
	271	}
	272
	273	void vivid_fill_service_lines(struct v4l2_sliced_vbi_format *vbi, u32 service_set)
	274	{
	275	vbi->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
	276	vbi->service_set = service_set;
	277	memset(vbi->service_lines, 0, sizeof(vbi->service_lines));
	278	memset(vbi->reserved, 0, sizeof(vbi->reserved));
	279
	280	if (vbi->service_set == 0)
	281	return;
	282
	283	if (vbi->service_set & V4L2_SLICED_CAPTION_525) {
	284	vbi->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
	285	vbi->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
	286	}
62f28725 HV	287	if (vbi->service_set & V4L2_SLICED_WSS_625) {
	288	unsigned i;
	289
	290	for (i = 7; i <= 18; i++)
	291	vbi->service_lines[0][i] =
	292	vbi->service_lines[1][i] = V4L2_SLICED_TELETEXT_B;
7bb70caa	293	vbi->service_lines[0][23] = V4L2_SLICED_WSS_625;
62f28725	294	}
7bb70caa HV	295	}
	296
	297	int vidioc_g_fmt_sliced_vbi_cap(struct file file, void fh, struct v4l2_format *fmt)
	298	{
	299	struct vivid_dev *dev = video_drvdata(file);
	300	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
	301
	302	if (!vivid_is_sdtv_cap(dev) \|\| !dev->has_sliced_vbi_cap)
	303	return -EINVAL;
	304
	305	vivid_fill_service_lines(vbi, dev->service_set_cap);
	306	return 0;
	307	}
	308
	309	int vidioc_try_fmt_sliced_vbi_cap(struct file file, void fh, struct v4l2_format *fmt)
	310	{
	311	struct vivid_dev *dev = video_drvdata(file);
	312	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
	313	bool is_60hz = dev->std_cap & V4L2_STD_525_60;
	314	u32 service_set = vbi->service_set;
	315
	316	if (!vivid_is_sdtv_cap(dev) \|\| !dev->has_sliced_vbi_cap)
	317	return -EINVAL;
	318
62f28725 HV	319	service_set &= is_60hz ? V4L2_SLICED_CAPTION_525 :
62f28725 HV	320	V4L2_SLICED_WSS_625 \| V4L2_SLICED_TELETEXT_B;
7bb70caa HV	321	vivid_fill_service_lines(vbi, service_set);
	322	return 0;
	323	}
	324
	325	int vidioc_s_fmt_sliced_vbi_cap(struct file file, void fh, struct v4l2_format *fmt)
	326	{
	327	struct vivid_dev *dev = video_drvdata(file);
	328	struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
	329	int ret = vidioc_try_fmt_sliced_vbi_cap(file, fh, fmt);
	330
	331	if (ret)
	332	return ret;
	333	if (!dev->stream_sliced_vbi_cap && vb2_is_busy(&dev->vb_vbi_cap_q))
	334	return -EBUSY;
	335	dev->service_set_cap = vbi->service_set;
	336	dev->stream_sliced_vbi_cap = true;
	337	dev->vbi_cap_dev.queue->type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
	338	return 0;
	339	}
	340
	341	int vidioc_g_sliced_vbi_cap(struct file file, void fh, struct v4l2_sliced_vbi_cap *cap)
	342	{
	343	struct vivid_dev *dev = video_drvdata(file);
	344	struct video_device *vdev = video_devdata(file);
	345	bool is_60hz;
	346
	347	if (vdev->vfl_dir == VFL_DIR_RX) {
	348	is_60hz = dev->std_cap & V4L2_STD_525_60;
	349	if (!vivid_is_sdtv_cap(dev) \|\| !dev->has_sliced_vbi_cap \|\|
	350	cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
	351	return -EINVAL;
	352	} else {
	353	is_60hz = dev->std_out & V4L2_STD_525_60;
	354	if (!vivid_is_svid_out(dev) \|\| !dev->has_sliced_vbi_out \|\|
	355	cap->type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT)
	356	return -EINVAL;
	357	}
	358
62f28725 HV	359	cap->service_set = is_60hz ? V4L2_SLICED_CAPTION_525 :
62f28725 HV	360	V4L2_SLICED_WSS_625 \| V4L2_SLICED_TELETEXT_B;
7bb70caa HV	361	if (is_60hz) {
	362	cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
	363	cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
	364	} else {
62f28725 HV	365	unsigned i;
	366
	367	for (i = 7; i <= 18; i++)
	368	cap->service_lines[0][i] =
	369	cap->service_lines[1][i] = V4L2_SLICED_TELETEXT_B;
7bb70caa HV	370	cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
	371	}
	372	return 0;
	373	}