[linux-2.6-block.git] / drivers / media / pci / saa7134 / saa7134-empress.c

/*
 *
 * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "saa7134.h"
#include "saa7134-reg.h"

#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>

#include <media/v4l2-common.h>
#include <media/v4l2-event.h>

/* ------------------------------------------------------------------ */

MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
MODULE_LICENSE("GPL");

static unsigned int empress_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };

module_param_array(empress_nr, int, NULL, 0444);
MODULE_PARM_DESC(empress_nr,"ts device number");

/* ------------------------------------------------------------------ */

static int start_streaming(struct vb2_queue *vq, unsigned int count)
{
	struct saa7134_dmaqueue *dmaq = vq->drv_priv;
	struct saa7134_dev *dev = dmaq->dev;
	u32 leading_null_bytes = 0;
	int err;

	err = saa7134_ts_start_streaming(vq, count);
	if (err)
		return err;

	/* If more cards start to need this, then this
	   should probably be added to the card definitions. */
	switch (dev->board) {
	case SAA7134_BOARD_BEHOLD_M6:
	case SAA7134_BOARD_BEHOLD_M63:
	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
		leading_null_bytes = 1;
		break;
	}
	saa_call_all(dev, core, init, leading_null_bytes);
	/* Unmute audio */
	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
			saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
	dev->empress_started = 1;
	return 0;
}

static void stop_streaming(struct vb2_queue *vq)
{
	struct saa7134_dmaqueue *dmaq = vq->drv_priv;
	struct saa7134_dev *dev = dmaq->dev;

	saa7134_ts_stop_streaming(vq);
	saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
	msleep(20);
	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
	msleep(100);
	/* Mute audio */
	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
			saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6));
	dev->empress_started = 0;
}

static struct vb2_ops saa7134_empress_qops = {
	.queue_setup	= saa7134_ts_queue_setup,
	.buf_init	= saa7134_ts_buffer_init,
	.buf_prepare	= saa7134_ts_buffer_prepare,
	.buf_queue	= saa7134_vb2_buffer_queue,
	.wait_prepare	= vb2_ops_wait_prepare,
	.wait_finish	= vb2_ops_wait_finish,
	.start_streaming = start_streaming,
	.stop_streaming = stop_streaming,
};

/* ------------------------------------------------------------------ */

static int empress_enum_fmt_vid_cap(struct file *file, void  *priv,
					struct v4l2_fmtdesc *f)
{
	if (f->index != 0)
		return -EINVAL;

	strlcpy(f->description, "MPEG TS", sizeof(f->description));
	f->pixelformat = V4L2_PIX_FMT_MPEG;
	f->flags = V4L2_FMT_FLAG_COMPRESSED;
	return 0;
}

static int empress_g_fmt_vid_cap(struct file *file, void *priv,
				struct v4l2_format *f)
{
	struct saa7134_dev *dev = video_drvdata(file);
	struct v4l2_subdev_format fmt = {
		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
	};
	struct v4l2_mbus_framefmt *mbus_fmt = &fmt.format;

	saa_call_all(dev, pad, get_fmt, NULL, &fmt);

	v4l2_fill_pix_format(&f->fmt.pix, mbus_fmt);
	f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
	f->fmt.pix.sizeimage    = TS_PACKET_SIZE * dev->ts.nr_packets;
	f->fmt.pix.bytesperline = 0;

	return 0;
}

static int empress_s_fmt_vid_cap(struct file *file, void *priv,
				struct v4l2_format *f)
{
	struct saa7134_dev *dev = video_drvdata(file);
	struct v4l2_subdev_format format = {
		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
	};

	v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
	saa_call_all(dev, pad, set_fmt, NULL, &format);
	v4l2_fill_pix_format(&f->fmt.pix, &format.format);

	f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
	f->fmt.pix.sizeimage    = TS_PACKET_SIZE * dev->ts.nr_packets;
	f->fmt.pix.bytesperline = 0;

	return 0;
}

static int empress_try_fmt_vid_cap(struct file *file, void *priv,
				struct v4l2_format *f)
{
	struct saa7134_dev *dev = video_drvdata(file);
	struct v4l2_subdev_pad_config pad_cfg;
	struct v4l2_subdev_format format = {
		.which = V4L2_SUBDEV_FORMAT_TRY,
	};

	v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
	saa_call_all(dev, pad, set_fmt, &pad_cfg, &format);
	v4l2_fill_pix_format(&f->fmt.pix, &format.format);

	f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
	f->fmt.pix.sizeimage    = TS_PACKET_SIZE * dev->ts.nr_packets;
	f->fmt.pix.bytesperline = 0;

	return 0;
}

static const struct v4l2_file_operations ts_fops =
{
	.owner	  = THIS_MODULE,
	.open	  = v4l2_fh_open,
	.release  = vb2_fop_release,
	.read	  = vb2_fop_read,
	.poll	  = vb2_fop_poll,
	.mmap	  = vb2_fop_mmap,
	.unlocked_ioctl = video_ioctl2,
};

static const struct v4l2_ioctl_ops ts_ioctl_ops = {
	.vidioc_querycap		= saa7134_querycap,
	.vidioc_enum_fmt_vid_cap	= empress_enum_fmt_vid_cap,
	.vidioc_try_fmt_vid_cap		= empress_try_fmt_vid_cap,
	.vidioc_s_fmt_vid_cap		= empress_s_fmt_vid_cap,
	.vidioc_g_fmt_vid_cap		= empress_g_fmt_vid_cap,
	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
	.vidioc_querybuf		= vb2_ioctl_querybuf,
	.vidioc_qbuf			= vb2_ioctl_qbuf,
	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
	.vidioc_expbuf			= vb2_ioctl_expbuf,
	.vidioc_streamon		= vb2_ioctl_streamon,
	.vidioc_streamoff		= vb2_ioctl_streamoff,
	.vidioc_g_frequency		= saa7134_g_frequency,
	.vidioc_s_frequency		= saa7134_s_frequency,
	.vidioc_g_tuner			= saa7134_g_tuner,
	.vidioc_s_tuner			= saa7134_s_tuner,
	.vidioc_enum_input		= saa7134_enum_input,
	.vidioc_g_input			= saa7134_g_input,
	.vidioc_s_input			= saa7134_s_input,
	.vidioc_s_std			= saa7134_s_std,
	.vidioc_g_std			= saa7134_g_std,
	.vidioc_querystd		= saa7134_querystd,
	.vidioc_log_status		= v4l2_ctrl_log_status,
	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,
	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
};

/* ----------------------------------------------------------- */

static struct video_device saa7134_empress_template = {
	.name          = "saa7134-empress",
	.fops          = &ts_fops,
	.ioctl_ops     = &ts_ioctl_ops,

	.tvnorms			= SAA7134_NORMS,
};

static void empress_signal_update(struct work_struct *work)
{
	struct saa7134_dev* dev =
		container_of(work, struct saa7134_dev, empress_workqueue);

	if (dev->nosignal) {
		pr_debug("no video signal\n");
	} else {
		pr_debug("video signal acquired\n");
	}
}

static void empress_signal_change(struct saa7134_dev *dev)
{
	schedule_work(&dev->empress_workqueue);
}

static bool empress_ctrl_filter(const struct v4l2_ctrl *ctrl)
{
	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
	case V4L2_CID_HUE:
	case V4L2_CID_CONTRAST:
	case V4L2_CID_SATURATION:
	case V4L2_CID_AUDIO_MUTE:
	case V4L2_CID_AUDIO_VOLUME:
	case V4L2_CID_PRIVATE_INVERT:
	case V4L2_CID_PRIVATE_AUTOMUTE:
		return true;
	default:
		return false;
	}
}

static int empress_init(struct saa7134_dev *dev)
{
	struct v4l2_ctrl_handler *hdl = &dev->empress_ctrl_handler;
	struct vb2_queue *q;
	int err;

	pr_debug("%s: %s\n", dev->name, __func__);
	dev->empress_dev = video_device_alloc();
	if (NULL == dev->empress_dev)
		return -ENOMEM;
	*(dev->empress_dev) = saa7134_empress_template;
	dev->empress_dev->v4l2_dev  = &dev->v4l2_dev;
	dev->empress_dev->release = video_device_release;
	dev->empress_dev->lock = &dev->lock;
	snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name),
		 "%s empress (%s)", dev->name,
		 saa7134_boards[dev->board].name);
	v4l2_ctrl_handler_init(hdl, 21);
	v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler, empress_ctrl_filter);
	if (dev->empress_sd)
		v4l2_ctrl_add_handler(hdl, dev->empress_sd->ctrl_handler, NULL);
	if (hdl->error) {
		video_device_release(dev->empress_dev);
		return hdl->error;
	}
	dev->empress_dev->ctrl_handler = hdl;

	INIT_WORK(&dev->empress_workqueue, empress_signal_update);

	q = &dev->empress_vbq;
	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	/*
	 * Do not add VB2_USERPTR: the saa7134 DMA engine cannot handle
	 * transfers that do not start at the beginning of a page. A USERPTR
	 * can start anywhere in a page, so USERPTR support is a no-go.
	 */
	q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
	q->drv_priv = &dev->ts_q;
	q->ops = &saa7134_empress_qops;
	q->gfp_flags = GFP_DMA32;
	q->mem_ops = &vb2_dma_sg_memops;
	q->buf_struct_size = sizeof(struct saa7134_buf);
	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
	q->lock = &dev->lock;
	q->dev = &dev->pci->dev;
	err = vb2_queue_init(q);
	if (err)
		return err;
	dev->empress_dev->queue = q;

	video_set_drvdata(dev->empress_dev, dev);
	err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER,
				    empress_nr[dev->nr]);
	if (err < 0) {
		pr_info("%s: can't register video device\n",
		       dev->name);
		video_device_release(dev->empress_dev);
		dev->empress_dev = NULL;
		return err;
	}
	pr_info("%s: registered device %s [mpeg]\n",
	       dev->name, video_device_node_name(dev->empress_dev));

	empress_signal_update(&dev->empress_workqueue);
	return 0;
}

static int empress_fini(struct saa7134_dev *dev)
{
	pr_debug("%s: %s\n", dev->name, __func__);

	if (NULL == dev->empress_dev)
		return 0;
	flush_work(&dev->empress_workqueue);
	video_unregister_device(dev->empress_dev);
	vb2_queue_release(&dev->empress_vbq);
	v4l2_ctrl_handler_free(&dev->empress_ctrl_handler);
	dev->empress_dev = NULL;
	return 0;
}

static struct saa7134_mpeg_ops empress_ops = {
	.type          = SAA7134_MPEG_EMPRESS,
	.init          = empress_init,
	.fini          = empress_fini,
	.signal_change = empress_signal_change,
};

static int __init empress_register(void)
{
	return saa7134_ts_register(&empress_ops);
}

static void __exit empress_unregister(void)
{
	saa7134_ts_unregister(&empress_ops);
}

module_init(empress_register);
module_exit(empress_unregister);
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	*
	3	* (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	18	*/
	19
9a12ccfc MCC	20	#include "saa7134.h"
	21	#include "saa7134-reg.h"
	22
1da177e4 LT	23	#include <linux/init.h>
	24	#include <linux/list.h>
	25	#include <linux/module.h>
1da177e4	26	#include <linux/kernel.h>
1da177e4 LT	27	#include <linux/delay.h>
1da177e4 LT	28
5e453dc7	29	#include <media/v4l2-common.h>
a2004502 HV	30	#include <media/v4l2-event.h>
a2004502 HV	31
1da177e4 LT	32	/* ------------------------------------------------------------------ */
	33
	34	MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
	35	MODULE_LICENSE("GPL");
	36
	37	static unsigned int empress_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
674434c6	38
1da177e4 LT	39	module_param_array(empress_nr, int, NULL, 0444);
	40	MODULE_PARM_DESC(empress_nr,"ts device number");
	41
1da177e4 LT	42	/* ------------------------------------------------------------------ */
1da177e4 LT	43
2ada815f	44	static int start_streaming(struct vb2_queue *vq, unsigned int count)
1da177e4	45	{
2ada815f HV	46	struct saa7134_dmaqueue *dmaq = vq->drv_priv;
2ada815f HV	47	struct saa7134_dev *dev = dmaq->dev;
f03813e4	48	u32 leading_null_bytes = 0;
2ada815f HV	49	int err;
	50
	51	err = saa7134_ts_start_streaming(vq, count);
	52	if (err)
	53	return err;
86b79d66	54
f03813e4 DB	55	/* If more cards start to need this, then this
	56	should probably be added to the card definitions. */
	57	switch (dev->board) {
	58	case SAA7134_BOARD_BEHOLD_M6:
	59	case SAA7134_BOARD_BEHOLD_M63:
	60	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
	61	leading_null_bytes = 1;
	62	break;
	63	}
fac6986c	64	saa_call_all(dev, core, init, leading_null_bytes);
2ada815f HV	65	/* Unmute audio */
	66	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
	67	saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
1da177e4	68	dev->empress_started = 1;
4ac97914	69	return 0;
1da177e4 LT	70	}
1da177e4 LT	71
2ada815f	72	static void stop_streaming(struct vb2_queue *vq)
51aefd73	73	{
2ada815f HV	74	struct saa7134_dmaqueue *dmaq = vq->drv_priv;
2ada815f HV	75	struct saa7134_dev *dev = dmaq->dev;
51aefd73	76
2ada815f	77	saa7134_ts_stop_streaming(vq);
51aefd73	78	saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
2ada815f	79	msleep(20);
51aefd73 HV	80	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
51aefd73 HV	81	msleep(100);
2ada815f	82	/* Mute audio */
b784e526	83	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
2ada815f HV	84	saa_readb(SAA7134_AUDIO_MUTE_CTRL) \| (1 << 6));
2ada815f HV	85	dev->empress_started = 0;
1da177e4 LT	86	}
1da177e4 LT	87
2ada815f HV	88	static struct vb2_ops saa7134_empress_qops = {
	89	.queue_setup = saa7134_ts_queue_setup,
	90	.buf_init = saa7134_ts_buffer_init,
	91	.buf_prepare = saa7134_ts_buffer_prepare,
2ada815f HV	92	.buf_queue = saa7134_vb2_buffer_queue,
	93	.wait_prepare = vb2_ops_wait_prepare,
	94	.wait_finish = vb2_ops_wait_finish,
	95	.start_streaming = start_streaming,
	96	.stop_streaming = stop_streaming,
	97	};
1da177e4	98
2ada815f	99	/* ------------------------------------------------------------------ */
1da177e4	100
78b526a4	101	static int empress_enum_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	102	struct v4l2_fmtdesc *f)
	103	{
	104	if (f->index != 0)
	105	return -EINVAL;
1da177e4	106
2c10e8a8 MCC	107	strlcpy(f->description, "MPEG TS", sizeof(f->description));
2c10e8a8 MCC	108	f->pixelformat = V4L2_PIX_FMT_MPEG;
cabc6508	109	f->flags = V4L2_FMT_FLAG_COMPRESSED;
2c10e8a8 MCC	110	return 0;
2c10e8a8 MCC	111	}
1da177e4	112
78b526a4	113	static int empress_g_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	114	struct v4l2_format *f)
2c10e8a8 MCC	115	{
b9f63b25	116	struct saa7134_dev *dev = video_drvdata(file);
da298c6d HV	117	struct v4l2_subdev_format fmt = {
	118	.which = V4L2_SUBDEV_FORMAT_ACTIVE,
	119	};
	120	struct v4l2_mbus_framefmt *mbus_fmt = &fmt.format;
1da177e4	121
da298c6d	122	saa_call_all(dev, pad, get_fmt, NULL, &fmt);
1da177e4	123
da298c6d	124	v4l2_fill_pix_format(&f->fmt.pix, mbus_fmt);
2c10e8a8 MCC	125	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	126	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
cabc6508	127	f->fmt.pix.bytesperline = 0;
1da177e4	128
2c10e8a8 MCC	129	return 0;
2c10e8a8 MCC	130	}
1da177e4	131
78b526a4	132	static int empress_s_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	133	struct v4l2_format *f)
2c10e8a8 MCC	134	{
b9f63b25	135	struct saa7134_dev *dev = video_drvdata(file);
ebf984bb HV	136	struct v4l2_subdev_format format = {
	137	.which = V4L2_SUBDEV_FORMAT_ACTIVE,
	138	};
1da177e4	139
ebf984bb HV	140	v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
	141	saa_call_all(dev, pad, set_fmt, NULL, &format);
	142	v4l2_fill_pix_format(&f->fmt.pix, &format.format);
1da177e4	143
2c10e8a8 MCC	144	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	145	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
cabc6508	146	f->fmt.pix.bytesperline = 0;
1da177e4	147
2c10e8a8 MCC	148	return 0;
	149	}
	150
6b6b7543 DB	151	static int empress_try_fmt_vid_cap(struct file file, void priv,
	152	struct v4l2_format *f)
	153	{
b9f63b25	154	struct saa7134_dev *dev = video_drvdata(file);
5eab4983 HV	155	struct v4l2_subdev_pad_config pad_cfg;
	156	struct v4l2_subdev_format format = {
	157	.which = V4L2_SUBDEV_FORMAT_TRY,
	158	};
cabc6508	159
5eab4983 HV	160	v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
	161	saa_call_all(dev, pad, set_fmt, &pad_cfg, &format);
	162	v4l2_fill_pix_format(&f->fmt.pix, &format.format);
6b6b7543 DB	163
	164	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
	165	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
cabc6508	166	f->fmt.pix.bytesperline = 0;
6b6b7543 DB	167
	168	return 0;
	169	}
2c10e8a8	170
bec43661	171	static const struct v4l2_file_operations ts_fops =
1da177e4 LT	172	{
1da177e4 LT	173	.owner = THIS_MODULE,
2ada815f HV	174	.open = v4l2_fh_open,
	175	.release = vb2_fop_release,
	176	.read = vb2_fop_read,
	177	.poll = vb2_fop_poll,
	178	.mmap = vb2_fop_mmap,
13936af3	179	.unlocked_ioctl = video_ioctl2,
1da177e4 LT	180	};
1da177e4 LT	181
a399810c	182	static const struct v4l2_ioctl_ops ts_ioctl_ops = {
b93a18d5	183	.vidioc_querycap = saa7134_querycap,
78b526a4	184	.vidioc_enum_fmt_vid_cap = empress_enum_fmt_vid_cap,
6b6b7543	185	.vidioc_try_fmt_vid_cap = empress_try_fmt_vid_cap,
78b526a4 HV	186	.vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap,
78b526a4 HV	187	.vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap,
2ada815f HV	188	.vidioc_reqbufs = vb2_ioctl_reqbufs,
	189	.vidioc_querybuf = vb2_ioctl_querybuf,
	190	.vidioc_qbuf = vb2_ioctl_qbuf,
	191	.vidioc_dqbuf = vb2_ioctl_dqbuf,
9f183020	192	.vidioc_expbuf = vb2_ioctl_expbuf,
2ada815f HV	193	.vidioc_streamon = vb2_ioctl_streamon,
2ada815f HV	194	.vidioc_streamoff = vb2_ioctl_streamoff,
b93a18d5 HV	195	.vidioc_g_frequency = saa7134_g_frequency,
	196	.vidioc_s_frequency = saa7134_s_frequency,
	197	.vidioc_g_tuner = saa7134_g_tuner,
	198	.vidioc_s_tuner = saa7134_s_tuner,
	199	.vidioc_enum_input = saa7134_enum_input,
	200	.vidioc_g_input = saa7134_g_input,
	201	.vidioc_s_input = saa7134_s_input,
	202	.vidioc_s_std = saa7134_s_std,
	203	.vidioc_g_std = saa7134_g_std,
707b7f80	204	.vidioc_querystd = saa7134_querystd,
a2004502 HV	205	.vidioc_log_status = v4l2_ctrl_log_status,
	206	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
	207	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
a399810c HV	208	};
	209
	210	/* ----------------------------------------------------------- */
	211
	212	static struct video_device saa7134_empress_template = {
	213	.name = "saa7134-empress",
a399810c	214	.fops = &ts_fops,
a399810c	215	.ioctl_ops = &ts_ioctl_ops,
2c10e8a8 MCC	216
2c10e8a8 MCC	217	.tvnorms = SAA7134_NORMS,
1da177e4 LT	218	};
1da177e4 LT	219
c4028958	220	static void empress_signal_update(struct work_struct *work)
1da177e4	221	{
c4028958 DH	222	struct saa7134_dev* dev =
c4028958 DH	223	container_of(work, struct saa7134_dev, empress_workqueue);
1da177e4 LT	224
1da177e4 LT	225	if (dev->nosignal) {
e43c1732	226	pr_debug("no video signal\n");
1da177e4	227	} else {
e43c1732	228	pr_debug("video signal acquired\n");
1da177e4 LT	229	}
	230	}
	231
	232	static void empress_signal_change(struct saa7134_dev *dev)
	233	{
	234	schedule_work(&dev->empress_workqueue);
	235	}
	236
718bde1a HV	237	static bool empress_ctrl_filter(const struct v4l2_ctrl *ctrl)
	238	{
	239	switch (ctrl->id) {
	240	case V4L2_CID_BRIGHTNESS:
	241	case V4L2_CID_HUE:
	242	case V4L2_CID_CONTRAST:
	243	case V4L2_CID_SATURATION:
	244	case V4L2_CID_AUDIO_MUTE:
	245	case V4L2_CID_AUDIO_VOLUME:
	246	case V4L2_CID_PRIVATE_INVERT:
	247	case V4L2_CID_PRIVATE_AUTOMUTE:
	248	return true;
	249	default:
	250	return false;
	251	}
	252	}
1da177e4 LT	253
	254	static int empress_init(struct saa7134_dev *dev)
	255	{
718bde1a	256	struct v4l2_ctrl_handler *hdl = &dev->empress_ctrl_handler;
2ada815f	257	struct vb2_queue *q;
1da177e4 LT	258	int err;
1da177e4 LT	259
6139ebc6	260	pr_debug("%s: %s\n", dev->name, __func__);
1da177e4 LT	261	dev->empress_dev = video_device_alloc();
	262	if (NULL == dev->empress_dev)
	263	return -ENOMEM;
	264	*(dev->empress_dev) = saa7134_empress_template;
d481c581	265	dev->empress_dev->v4l2_dev = &dev->v4l2_dev;
1da177e4	266	dev->empress_dev->release = video_device_release;
2ada815f	267	dev->empress_dev->lock = &dev->lock;
1da177e4 LT	268	snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name),
	269	"%s empress (%s)", dev->name,
	270	saa7134_boards[dev->board].name);
718bde1a HV	271	v4l2_ctrl_handler_init(hdl, 21);
	272	v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler, empress_ctrl_filter);
	273	if (dev->empress_sd)
	274	v4l2_ctrl_add_handler(hdl, dev->empress_sd->ctrl_handler, NULL);
	275	if (hdl->error) {
	276	video_device_release(dev->empress_dev);
	277	return hdl->error;
	278	}
	279	dev->empress_dev->ctrl_handler = hdl;
1da177e4	280
c4028958	281	INIT_WORK(&dev->empress_workqueue, empress_signal_update);
1da177e4	282
2ada815f HV	283	q = &dev->empress_vbq;
	284	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	285	/*
	286	* Do not add VB2_USERPTR: the saa7134 DMA engine cannot handle
	287	* transfers that do not start at the beginning of a page. A USERPTR
	288	* can start anywhere in a page, so USERPTR support is a no-go.
	289	*/
9f183020	290	q->io_modes = VB2_MMAP \| VB2_DMABUF \| VB2_READ;
2ada815f HV	291	q->drv_priv = &dev->ts_q;
	292	q->ops = &saa7134_empress_qops;
	293	q->gfp_flags = GFP_DMA32;
	294	q->mem_ops = &vb2_dma_sg_memops;
	295	q->buf_struct_size = sizeof(struct saa7134_buf);
	296	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
	297	q->lock = &dev->lock;
d8feef9b	298	q->dev = &dev->pci->dev;
2ada815f HV	299	err = vb2_queue_init(q);
	300	if (err)
	301	return err;
	302	dev->empress_dev->queue = q;
	303
63b0d5ad	304	video_set_drvdata(dev->empress_dev, dev);
1da177e4 LT	305	err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER,
	306	empress_nr[dev->nr]);
	307	if (err < 0) {
83582009	308	pr_info("%s: can't register video device\n",
1da177e4 LT	309	dev->name);
	310	video_device_release(dev->empress_dev);
	311	dev->empress_dev = NULL;
	312	return err;
	313	}
83582009	314	pr_info("%s: registered device %s [mpeg]\n",
38c7c036	315	dev->name, video_device_node_name(dev->empress_dev));
1da177e4	316
c4028958	317	empress_signal_update(&dev->empress_workqueue);
1da177e4 LT	318	return 0;
	319	}
	320
	321	static int empress_fini(struct saa7134_dev *dev)
	322	{
6139ebc6	323	pr_debug("%s: %s\n", dev->name, __func__);
1da177e4 LT	324
	325	if (NULL == dev->empress_dev)
	326	return 0;
43829731	327	flush_work(&dev->empress_workqueue);
1da177e4	328	video_unregister_device(dev->empress_dev);
2ada815f	329	vb2_queue_release(&dev->empress_vbq);
718bde1a	330	v4l2_ctrl_handler_free(&dev->empress_ctrl_handler);
1da177e4 LT	331	dev->empress_dev = NULL;
	332	return 0;
	333	}
	334
	335	static struct saa7134_mpeg_ops empress_ops = {
	336	.type = SAA7134_MPEG_EMPRESS,
	337	.init = empress_init,
	338	.fini = empress_fini,
	339	.signal_change = empress_signal_change,
	340	};
	341
	342	static int __init empress_register(void)
	343	{
	344	return saa7134_ts_register(&empress_ops);
	345	}
	346
	347	static void __exit empress_unregister(void)
	348	{
	349	saa7134_ts_unregister(&empress_ops);
	350	}
	351
	352	module_init(empress_register);
	353	module_exit(empress_unregister);