[deliverable/linux.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 unsigned int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug,"enable debug messages");

#define dprintk(fmt, arg...)	if (debug)			\
	printk(KERN_DEBUG "%s/empress: " fmt, dev->name , ## arg)

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

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_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) {
		dprintk("no video signal\n");
	} else {
		dprintk("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;

	dprintk("%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_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;
	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) {
		printk(KERN_INFO "%s: can't register video device\n",
		       dev->name);
		video_device_release(dev->empress_dev);
		dev->empress_dev = NULL;
		return err;
	}
	printk(KERN_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)
{
	dprintk("%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
ff699e6b	42	static unsigned int debug;
1da177e4 LT	43	module_param(debug, int, 0644);
	44	MODULE_PARM_DESC(debug,"enable debug messages");
	45
	46	#define dprintk(fmt, arg...) if (debug) \
	47	printk(KERN_DEBUG "%s/empress: " fmt, dev->name , ## arg)
	48
	49	/* ------------------------------------------------------------------ */
	50
2ada815f	51	static int start_streaming(struct vb2_queue *vq, unsigned int count)
1da177e4	52	{
2ada815f HV	53	struct saa7134_dmaqueue *dmaq = vq->drv_priv;
2ada815f HV	54	struct saa7134_dev *dev = dmaq->dev;
f03813e4	55	u32 leading_null_bytes = 0;
2ada815f HV	56	int err;
	57
	58	err = saa7134_ts_start_streaming(vq, count);
	59	if (err)
	60	return err;
86b79d66	61
f03813e4 DB	62	/* If more cards start to need this, then this
	63	should probably be added to the card definitions. */
	64	switch (dev->board) {
	65	case SAA7134_BOARD_BEHOLD_M6:
	66	case SAA7134_BOARD_BEHOLD_M63:
	67	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
	68	leading_null_bytes = 1;
	69	break;
	70	}
fac6986c	71	saa_call_all(dev, core, init, leading_null_bytes);
2ada815f HV	72	/* Unmute audio */
	73	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
	74	saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
1da177e4	75	dev->empress_started = 1;
4ac97914	76	return 0;
1da177e4 LT	77	}
1da177e4 LT	78
2ada815f	79	static void stop_streaming(struct vb2_queue *vq)
51aefd73	80	{
2ada815f HV	81	struct saa7134_dmaqueue *dmaq = vq->drv_priv;
2ada815f HV	82	struct saa7134_dev *dev = dmaq->dev;
51aefd73	83
2ada815f	84	saa7134_ts_stop_streaming(vq);
51aefd73	85	saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
2ada815f	86	msleep(20);
51aefd73 HV	87	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
51aefd73 HV	88	msleep(100);
2ada815f	89	/* Mute audio */
b784e526	90	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
2ada815f HV	91	saa_readb(SAA7134_AUDIO_MUTE_CTRL) \| (1 << 6));
2ada815f HV	92	dev->empress_started = 0;
1da177e4 LT	93	}
1da177e4 LT	94
2ada815f HV	95	static struct vb2_ops saa7134_empress_qops = {
	96	.queue_setup = saa7134_ts_queue_setup,
	97	.buf_init = saa7134_ts_buffer_init,
	98	.buf_prepare = saa7134_ts_buffer_prepare,
2ada815f HV	99	.buf_queue = saa7134_vb2_buffer_queue,
	100	.wait_prepare = vb2_ops_wait_prepare,
	101	.wait_finish = vb2_ops_wait_finish,
	102	.start_streaming = start_streaming,
	103	.stop_streaming = stop_streaming,
	104	};
1da177e4	105
2ada815f	106	/* ------------------------------------------------------------------ */
1da177e4	107
78b526a4	108	static int empress_enum_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	109	struct v4l2_fmtdesc *f)
	110	{
	111	if (f->index != 0)
	112	return -EINVAL;
1da177e4	113
2c10e8a8 MCC	114	strlcpy(f->description, "MPEG TS", sizeof(f->description));
2c10e8a8 MCC	115	f->pixelformat = V4L2_PIX_FMT_MPEG;
cabc6508	116	f->flags = V4L2_FMT_FLAG_COMPRESSED;
2c10e8a8 MCC	117	return 0;
2c10e8a8 MCC	118	}
1da177e4	119
78b526a4	120	static int empress_g_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	121	struct v4l2_format *f)
2c10e8a8 MCC	122	{
b9f63b25	123	struct saa7134_dev *dev = video_drvdata(file);
da298c6d HV	124	struct v4l2_subdev_format fmt = {
	125	.which = V4L2_SUBDEV_FORMAT_ACTIVE,
	126	};
	127	struct v4l2_mbus_framefmt *mbus_fmt = &fmt.format;
1da177e4	128
da298c6d	129	saa_call_all(dev, pad, get_fmt, NULL, &fmt);
1da177e4	130
da298c6d	131	v4l2_fill_pix_format(&f->fmt.pix, mbus_fmt);
2c10e8a8 MCC	132	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	133	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
cabc6508	134	f->fmt.pix.bytesperline = 0;
1da177e4	135
2c10e8a8 MCC	136	return 0;
2c10e8a8 MCC	137	}
1da177e4	138
78b526a4	139	static int empress_s_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	140	struct v4l2_format *f)
2c10e8a8 MCC	141	{
b9f63b25	142	struct saa7134_dev *dev = video_drvdata(file);
ebf984bb HV	143	struct v4l2_subdev_format format = {
	144	.which = V4L2_SUBDEV_FORMAT_ACTIVE,
	145	};
1da177e4	146
ebf984bb HV	147	v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
	148	saa_call_all(dev, pad, set_fmt, NULL, &format);
	149	v4l2_fill_pix_format(&f->fmt.pix, &format.format);
1da177e4	150
2c10e8a8 MCC	151	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	152	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
cabc6508	153	f->fmt.pix.bytesperline = 0;
1da177e4	154
2c10e8a8 MCC	155	return 0;
	156	}
	157
6b6b7543 DB	158	static int empress_try_fmt_vid_cap(struct file file, void priv,
	159	struct v4l2_format *f)
	160	{
b9f63b25	161	struct saa7134_dev *dev = video_drvdata(file);
5eab4983 HV	162	struct v4l2_subdev_pad_config pad_cfg;
	163	struct v4l2_subdev_format format = {
	164	.which = V4L2_SUBDEV_FORMAT_TRY,
	165	};
cabc6508	166
5eab4983 HV	167	v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
	168	saa_call_all(dev, pad, set_fmt, &pad_cfg, &format);
	169	v4l2_fill_pix_format(&f->fmt.pix, &format.format);
6b6b7543 DB	170
	171	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
	172	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
cabc6508	173	f->fmt.pix.bytesperline = 0;
6b6b7543 DB	174
	175	return 0;
	176	}
2c10e8a8	177
bec43661	178	static const struct v4l2_file_operations ts_fops =
1da177e4 LT	179	{
1da177e4 LT	180	.owner = THIS_MODULE,
2ada815f HV	181	.open = v4l2_fh_open,
	182	.release = vb2_fop_release,
	183	.read = vb2_fop_read,
	184	.poll = vb2_fop_poll,
	185	.mmap = vb2_fop_mmap,
13936af3	186	.unlocked_ioctl = video_ioctl2,
1da177e4 LT	187	};
1da177e4 LT	188
a399810c	189	static const struct v4l2_ioctl_ops ts_ioctl_ops = {
b93a18d5	190	.vidioc_querycap = saa7134_querycap,
78b526a4	191	.vidioc_enum_fmt_vid_cap = empress_enum_fmt_vid_cap,
6b6b7543	192	.vidioc_try_fmt_vid_cap = empress_try_fmt_vid_cap,
78b526a4 HV	193	.vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap,
78b526a4 HV	194	.vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap,
2ada815f HV	195	.vidioc_reqbufs = vb2_ioctl_reqbufs,
	196	.vidioc_querybuf = vb2_ioctl_querybuf,
	197	.vidioc_qbuf = vb2_ioctl_qbuf,
	198	.vidioc_dqbuf = vb2_ioctl_dqbuf,
	199	.vidioc_streamon = vb2_ioctl_streamon,
	200	.vidioc_streamoff = vb2_ioctl_streamoff,
b93a18d5 HV	201	.vidioc_g_frequency = saa7134_g_frequency,
	202	.vidioc_s_frequency = saa7134_s_frequency,
	203	.vidioc_g_tuner = saa7134_g_tuner,
	204	.vidioc_s_tuner = saa7134_s_tuner,
	205	.vidioc_enum_input = saa7134_enum_input,
	206	.vidioc_g_input = saa7134_g_input,
	207	.vidioc_s_input = saa7134_s_input,
	208	.vidioc_s_std = saa7134_s_std,
	209	.vidioc_g_std = saa7134_g_std,
707b7f80	210	.vidioc_querystd = saa7134_querystd,
a2004502 HV	211	.vidioc_log_status = v4l2_ctrl_log_status,
	212	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
	213	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
a399810c HV	214	};
	215
	216	/* ----------------------------------------------------------- */
	217
	218	static struct video_device saa7134_empress_template = {
	219	.name = "saa7134-empress",
a399810c	220	.fops = &ts_fops,
a399810c	221	.ioctl_ops = &ts_ioctl_ops,
2c10e8a8 MCC	222
2c10e8a8 MCC	223	.tvnorms = SAA7134_NORMS,
1da177e4 LT	224	};
1da177e4 LT	225
c4028958	226	static void empress_signal_update(struct work_struct *work)
1da177e4	227	{
c4028958 DH	228	struct saa7134_dev* dev =
c4028958 DH	229	container_of(work, struct saa7134_dev, empress_workqueue);
1da177e4 LT	230
	231	if (dev->nosignal) {
	232	dprintk("no video signal\n");
1da177e4 LT	233	} else {
1da177e4 LT	234	dprintk("video signal acquired\n");
1da177e4 LT	235	}
	236	}
	237
	238	static void empress_signal_change(struct saa7134_dev *dev)
	239	{
	240	schedule_work(&dev->empress_workqueue);
	241	}
	242
718bde1a HV	243	static bool empress_ctrl_filter(const struct v4l2_ctrl *ctrl)
	244	{
	245	switch (ctrl->id) {
	246	case V4L2_CID_BRIGHTNESS:
	247	case V4L2_CID_HUE:
	248	case V4L2_CID_CONTRAST:
	249	case V4L2_CID_SATURATION:
	250	case V4L2_CID_AUDIO_MUTE:
	251	case V4L2_CID_AUDIO_VOLUME:
	252	case V4L2_CID_PRIVATE_INVERT:
	253	case V4L2_CID_PRIVATE_AUTOMUTE:
	254	return true;
	255	default:
	256	return false;
	257	}
	258	}
1da177e4 LT	259
	260	static int empress_init(struct saa7134_dev *dev)
	261	{
718bde1a	262	struct v4l2_ctrl_handler *hdl = &dev->empress_ctrl_handler;
2ada815f	263	struct vb2_queue *q;
1da177e4 LT	264	int err;
1da177e4 LT	265
5016381c	266	dprintk("%s: %s\n",dev->name,__func__);
1da177e4 LT	267	dev->empress_dev = video_device_alloc();
	268	if (NULL == dev->empress_dev)
	269	return -ENOMEM;
	270	*(dev->empress_dev) = saa7134_empress_template;
d481c581	271	dev->empress_dev->v4l2_dev = &dev->v4l2_dev;
1da177e4	272	dev->empress_dev->release = video_device_release;
2ada815f	273	dev->empress_dev->lock = &dev->lock;
1da177e4 LT	274	snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name),
	275	"%s empress (%s)", dev->name,
	276	saa7134_boards[dev->board].name);
718bde1a HV	277	v4l2_ctrl_handler_init(hdl, 21);
	278	v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler, empress_ctrl_filter);
	279	if (dev->empress_sd)
	280	v4l2_ctrl_add_handler(hdl, dev->empress_sd->ctrl_handler, NULL);
	281	if (hdl->error) {
	282	video_device_release(dev->empress_dev);
	283	return hdl->error;
	284	}
	285	dev->empress_dev->ctrl_handler = hdl;
1da177e4	286
c4028958	287	INIT_WORK(&dev->empress_workqueue, empress_signal_update);
1da177e4	288
2ada815f HV	289	q = &dev->empress_vbq;
	290	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	291	/*
	292	* Do not add VB2_USERPTR: the saa7134 DMA engine cannot handle
	293	* transfers that do not start at the beginning of a page. A USERPTR
	294	* can start anywhere in a page, so USERPTR support is a no-go.
	295	*/
	296	q->io_modes = VB2_MMAP \| VB2_READ;
	297	q->drv_priv = &dev->ts_q;
	298	q->ops = &saa7134_empress_qops;
	299	q->gfp_flags = GFP_DMA32;
	300	q->mem_ops = &vb2_dma_sg_memops;
	301	q->buf_struct_size = sizeof(struct saa7134_buf);
	302	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
	303	q->lock = &dev->lock;
	304	err = vb2_queue_init(q);
	305	if (err)
	306	return err;
	307	dev->empress_dev->queue = q;
	308
63b0d5ad	309	video_set_drvdata(dev->empress_dev, dev);
1da177e4 LT	310	err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER,
	311	empress_nr[dev->nr]);
	312	if (err < 0) {
	313	printk(KERN_INFO "%s: can't register video device\n",
	314	dev->name);
	315	video_device_release(dev->empress_dev);
	316	dev->empress_dev = NULL;
	317	return err;
	318	}
38c7c036 LP	319	printk(KERN_INFO "%s: registered device %s [mpeg]\n",
38c7c036 LP	320	dev->name, video_device_node_name(dev->empress_dev));
1da177e4	321
c4028958	322	empress_signal_update(&dev->empress_workqueue);
1da177e4 LT	323	return 0;
	324	}
	325
	326	static int empress_fini(struct saa7134_dev *dev)
	327	{
5016381c	328	dprintk("%s: %s\n",dev->name,__func__);
1da177e4 LT	329
	330	if (NULL == dev->empress_dev)
	331	return 0;
43829731	332	flush_work(&dev->empress_workqueue);
1da177e4	333	video_unregister_device(dev->empress_dev);
2ada815f	334	vb2_queue_release(&dev->empress_vbq);
718bde1a	335	v4l2_ctrl_handler_free(&dev->empress_ctrl_handler);
1da177e4 LT	336	dev->empress_dev = NULL;
	337	return 0;
	338	}
	339
	340	static struct saa7134_mpeg_ops empress_ops = {
	341	.type = SAA7134_MPEG_EMPRESS,
	342	.init = empress_init,
	343	.fini = empress_fini,
	344	.signal_change = empress_signal_change,
	345	};
	346
	347	static int __init empress_register(void)
	348	{
	349	return saa7134_ts_register(&empress_ops);
	350	}
	351
	352	static void __exit empress_unregister(void)
	353	{
	354	saa7134_ts_unregister(&empress_ops);
	355	}
	356
	357	module_init(empress_register);
	358	module_exit(empress_unregister);