[mirror_ubuntu-zesty-kernel.git] / drivers / media / video / 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 <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>

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

#include <media/saa6752hs.h>
#include <media/v4l2-common.h>
#include <media/v4l2-chip-ident.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 void ts_reset_encoder(struct saa7134_dev* dev)
{
	if (!dev->empress_started)
		return;

	saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
	msleep(10);
	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
	msleep(100);
	dev->empress_started = 0;
}

static int ts_init_encoder(struct saa7134_dev* dev)
{
	u32 leading_null_bytes = 0;

	/* 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;
	}
	ts_reset_encoder(dev);
	saa_call_all(dev, core, init, leading_null_bytes);
	dev->empress_started = 1;
	return 0;
}

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

static int ts_open(struct file *file)
{
	struct video_device *vdev = video_devdata(file);
	struct saa7134_dev *dev = video_drvdata(file);
	int err;

	dprintk("open dev=%s\n", video_device_node_name(vdev));
	err = -EBUSY;
	if (!mutex_trylock(&dev->empress_tsq.vb_lock))
		return err;
	if (atomic_read(&dev->empress_users))
		goto done;

	/* Unmute audio */
	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
		saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));

	atomic_inc(&dev->empress_users);
	file->private_data = dev;
	err = 0;

done:
	mutex_unlock(&dev->empress_tsq.vb_lock);
	return err;
}

static int ts_release(struct file *file)
{
	struct saa7134_dev *dev = file->private_data;

	videobuf_stop(&dev->empress_tsq);
	videobuf_mmap_free(&dev->empress_tsq);

	/* stop the encoder */
	ts_reset_encoder(dev);

	/* Mute audio */
	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
		saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6));

	atomic_dec(&dev->empress_users);

	return 0;
}

static ssize_t
ts_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
{
	struct saa7134_dev *dev = file->private_data;

	if (!dev->empress_started)
		ts_init_encoder(dev);

	return videobuf_read_stream(&dev->empress_tsq,
				    data, count, ppos, 0,
				    file->f_flags & O_NONBLOCK);
}

static unsigned int
ts_poll(struct file *file, struct poll_table_struct *wait)
{
	struct saa7134_dev *dev = file->private_data;

	return videobuf_poll_stream(file, &dev->empress_tsq, wait);
}


static int
ts_mmap(struct file *file, struct vm_area_struct * vma)
{
	struct saa7134_dev *dev = file->private_data;

	return videobuf_mmap_mapper(&dev->empress_tsq, vma);
}

/*
 * This function is _not_ called directly, but from
 * video_generic_ioctl (and maybe others).  userspace
 * copying is done already, arg is a kernel pointer.
 */

static int empress_querycap(struct file *file, void  *priv,
					struct v4l2_capability *cap)
{
	struct saa7134_dev *dev = file->private_data;

	strcpy(cap->driver, "saa7134");
	strlcpy(cap->card, saa7134_boards[dev->board].name,
		sizeof(cap->card));
	sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
	cap->version = SAA7134_VERSION_CODE;
	cap->capabilities =
		V4L2_CAP_VIDEO_CAPTURE |
		V4L2_CAP_READWRITE |
		V4L2_CAP_STREAMING;
	return 0;
}

static int empress_enum_input(struct file *file, void *priv,
					struct v4l2_input *i)
{
	if (i->index != 0)
		return -EINVAL;

	i->type = V4L2_INPUT_TYPE_CAMERA;
	strcpy(i->name, "CCIR656");

	return 0;
}

static int empress_g_input(struct file *file, void *priv, unsigned int *i)
{
	*i = 0;
	return 0;
}

static int empress_s_input(struct file *file, void *priv, unsigned int i)
{
	if (i != 0)
		return -EINVAL;

	return 0;
}

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;

	return 0;
}

static int empress_g_fmt_vid_cap(struct file *file, void *priv,
				struct v4l2_format *f)
{
	struct saa7134_dev *dev = file->private_data;
	struct v4l2_mbus_framefmt mbus_fmt;

	saa_call_all(dev, video, g_mbus_fmt, &mbus_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;

	return 0;
}

static int empress_s_fmt_vid_cap(struct file *file, void *priv,
				struct v4l2_format *f)
{
	struct saa7134_dev *dev = file->private_data;
	struct v4l2_mbus_framefmt mbus_fmt;

	v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
	saa_call_all(dev, video, s_mbus_fmt, &mbus_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;

	return 0;
}

static int empress_try_fmt_vid_cap(struct file *file, void *priv,
				struct v4l2_format *f)
{
	struct saa7134_dev *dev = file->private_data;

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

	return 0;
}

static int empress_reqbufs(struct file *file, void *priv,
					struct v4l2_requestbuffers *p)
{
	struct saa7134_dev *dev = file->private_data;

	return videobuf_reqbufs(&dev->empress_tsq, p);
}

static int empress_querybuf(struct file *file, void *priv,
					struct v4l2_buffer *b)
{
	struct saa7134_dev *dev = file->private_data;

	return videobuf_querybuf(&dev->empress_tsq, b);
}

static int empress_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
	struct saa7134_dev *dev = file->private_data;

	return videobuf_qbuf(&dev->empress_tsq, b);
}

static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
	struct saa7134_dev *dev = file->private_data;

	return videobuf_dqbuf(&dev->empress_tsq, b,
				file->f_flags & O_NONBLOCK);
}

static int empress_streamon(struct file *file, void *priv,
					enum v4l2_buf_type type)
{
	struct saa7134_dev *dev = file->private_data;

	return videobuf_streamon(&dev->empress_tsq);
}

static int empress_streamoff(struct file *file, void *priv,
					enum v4l2_buf_type type)
{
	struct saa7134_dev *dev = file->private_data;

	return videobuf_streamoff(&dev->empress_tsq);
}

static int empress_s_ext_ctrls(struct file *file, void *priv,
			       struct v4l2_ext_controls *ctrls)
{
	struct saa7134_dev *dev = file->private_data;
	int err;

	/* count == 0 is abused in saa6752hs.c, so that special
		case is handled here explicitly. */
	if (ctrls->count == 0)
		return 0;

	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
		return -EINVAL;

	err = saa_call_empress(dev, core, s_ext_ctrls, ctrls);
	ts_init_encoder(dev);

	return err;
}

static int empress_g_ext_ctrls(struct file *file, void *priv,
			       struct v4l2_ext_controls *ctrls)
{
	struct saa7134_dev *dev = file->private_data;

	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
		return -EINVAL;
	return saa_call_empress(dev, core, g_ext_ctrls, ctrls);
}

static int empress_g_ctrl(struct file *file, void *priv,
					struct v4l2_control *c)
{
	struct saa7134_dev *dev = file->private_data;

	return saa7134_g_ctrl_internal(dev, NULL, c);
}

static int empress_s_ctrl(struct file *file, void *priv,
					struct v4l2_control *c)
{
	struct saa7134_dev *dev = file->private_data;

	return saa7134_s_ctrl_internal(dev, NULL, c);
}

static int empress_queryctrl(struct file *file, void *priv,
					struct v4l2_queryctrl *c)
{
	/* Must be sorted from low to high control ID! */
	static const u32 user_ctrls[] = {
		V4L2_CID_USER_CLASS,
		V4L2_CID_BRIGHTNESS,
		V4L2_CID_CONTRAST,
		V4L2_CID_SATURATION,
		V4L2_CID_HUE,
		V4L2_CID_AUDIO_VOLUME,
		V4L2_CID_AUDIO_MUTE,
		V4L2_CID_HFLIP,
		0
	};

	/* Must be sorted from low to high control ID! */
	static const u32 mpeg_ctrls[] = {
		V4L2_CID_MPEG_CLASS,
		V4L2_CID_MPEG_STREAM_TYPE,
		V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
		V4L2_CID_MPEG_AUDIO_ENCODING,
		V4L2_CID_MPEG_AUDIO_L2_BITRATE,
		V4L2_CID_MPEG_VIDEO_ENCODING,
		V4L2_CID_MPEG_VIDEO_ASPECT,
		V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
		V4L2_CID_MPEG_VIDEO_BITRATE,
		V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
		0
	};
	static const u32 *ctrl_classes[] = {
		user_ctrls,
		mpeg_ctrls,
		NULL
	};
	struct saa7134_dev *dev = file->private_data;

	c->id = v4l2_ctrl_next(ctrl_classes, c->id);
	if (c->id == 0)
		return -EINVAL;
	if (c->id == V4L2_CID_USER_CLASS || c->id == V4L2_CID_MPEG_CLASS)
		return v4l2_ctrl_query_fill(c, 0, 0, 0, 0);
	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
		return saa7134_queryctrl(file, priv, c);
	return saa_call_empress(dev, core, queryctrl, c);
}

static int empress_querymenu(struct file *file, void *priv,
					struct v4l2_querymenu *c)
{
	struct saa7134_dev *dev = file->private_data;

	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
		return -EINVAL;
	return saa_call_empress(dev, core, querymenu, c);
}

static int empress_g_chip_ident(struct file *file, void *fh,
	       struct v4l2_dbg_chip_ident *chip)
{
	struct saa7134_dev *dev = file->private_data;

	chip->ident = V4L2_IDENT_NONE;
	chip->revision = 0;
	if (chip->match.type == V4L2_CHIP_MATCH_I2C_DRIVER &&
	    !strcmp(chip->match.name, "saa6752hs"))
		return saa_call_empress(dev, core, g_chip_ident, chip);
	if (chip->match.type == V4L2_CHIP_MATCH_I2C_ADDR)
		return saa_call_empress(dev, core, g_chip_ident, chip);
	return -EINVAL;
}

static int empress_s_std(struct file *file, void *priv, v4l2_std_id *id)
{
	struct saa7134_dev *dev = file->private_data;

	return saa7134_s_std_internal(dev, NULL, id);
}

static int empress_g_std(struct file *file, void *priv, v4l2_std_id *id)
{
	struct saa7134_dev *dev = file->private_data;

	*id = dev->tvnorm->id;
	return 0;
}

static const struct v4l2_file_operations ts_fops =
{
	.owner	  = THIS_MODULE,
	.open	  = ts_open,
	.release  = ts_release,
	.read	  = ts_read,
	.poll	  = ts_poll,
	.mmap	  = ts_mmap,
	.ioctl	  = video_ioctl2,
};

static const struct v4l2_ioctl_ops ts_ioctl_ops = {
	.vidioc_querycap		= empress_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			= empress_reqbufs,
	.vidioc_querybuf		= empress_querybuf,
	.vidioc_qbuf			= empress_qbuf,
	.vidioc_dqbuf			= empress_dqbuf,
	.vidioc_streamon		= empress_streamon,
	.vidioc_streamoff		= empress_streamoff,
	.vidioc_s_ext_ctrls		= empress_s_ext_ctrls,
	.vidioc_g_ext_ctrls		= empress_g_ext_ctrls,
	.vidioc_enum_input		= empress_enum_input,
	.vidioc_g_input			= empress_g_input,
	.vidioc_s_input			= empress_s_input,
	.vidioc_queryctrl		= empress_queryctrl,
	.vidioc_querymenu		= empress_querymenu,
	.vidioc_g_ctrl			= empress_g_ctrl,
	.vidioc_s_ctrl			= empress_s_ctrl,
	.vidioc_g_chip_ident 		= empress_g_chip_ident,
	.vidioc_s_std			= empress_s_std,
	.vidioc_g_std			= empress_g_std,
};

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

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

	.tvnorms			= SAA7134_NORMS,
	.current_norm			= V4L2_STD_PAL,
};

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 int empress_init(struct saa7134_dev *dev)
{
	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->parent  = &dev->pci->dev;
	dev->empress_dev->release = video_device_release;
	snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name),
		 "%s empress (%s)", dev->name,
		 saa7134_boards[dev->board].name);

	INIT_WORK(&dev->empress_workqueue, empress_signal_update);

	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));

	videobuf_queue_sg_init(&dev->empress_tsq, &saa7134_ts_qops,
			    &dev->pci->dev, &dev->slock,
			    V4L2_BUF_TYPE_VIDEO_CAPTURE,
			    V4L2_FIELD_ALTERNATE,
			    sizeof(struct saa7134_buf),
			    dev, NULL);

	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_scheduled_work();
	video_unregister_device(dev->empress_dev);
	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);

/* ----------------------------------------------------------- */
/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */
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
	20	#include <linux/init.h>
	21	#include <linux/list.h>
	22	#include <linux/module.h>
1da177e4	23	#include <linux/kernel.h>
1da177e4 LT	24	#include <linux/delay.h>
	25
	26	#include "saa7134-reg.h"
	27	#include "saa7134.h"
	28
	29	#include <media/saa6752hs.h>
5e453dc7	30	#include <media/v4l2-common.h>
e281db58	31	#include <media/v4l2-chip-ident.h>
1da177e4 LT	32
	33	/* ------------------------------------------------------------------ */
	34
	35	MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
	36	MODULE_LICENSE("GPL");
	37
	38	static unsigned int empress_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
674434c6	39
1da177e4 LT	40	module_param_array(empress_nr, int, NULL, 0444);
	41	MODULE_PARM_DESC(empress_nr,"ts device number");
	42
ff699e6b	43	static unsigned int debug;
1da177e4 LT	44	module_param(debug, int, 0644);
	45	MODULE_PARM_DESC(debug,"enable debug messages");
	46
	47	#define dprintk(fmt, arg...) if (debug) \
	48	printk(KERN_DEBUG "%s/empress: " fmt, dev->name , ## arg)
	49
	50	/* ------------------------------------------------------------------ */
	51
	52	static void ts_reset_encoder(struct saa7134_dev* dev)
	53	{
	54	if (!dev->empress_started)
	55	return;
	56
	57	saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
	58	msleep(10);
4ac97914	59	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
1da177e4 LT	60	msleep(100);
	61	dev->empress_started = 0;
	62	}
	63
	64	static int ts_init_encoder(struct saa7134_dev* dev)
	65	{
f03813e4	66	u32 leading_null_bytes = 0;
86b79d66	67
f03813e4 DB	68	/* If more cards start to need this, then this
	69	should probably be added to the card definitions. */
	70	switch (dev->board) {
	71	case SAA7134_BOARD_BEHOLD_M6:
	72	case SAA7134_BOARD_BEHOLD_M63:
	73	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
	74	leading_null_bytes = 1;
	75	break;
	76	}
1da177e4	77	ts_reset_encoder(dev);
fac6986c	78	saa_call_all(dev, core, init, leading_null_bytes);
1da177e4	79	dev->empress_started = 1;
4ac97914	80	return 0;
1da177e4 LT	81	}
	82
	83	/* ------------------------------------------------------------------ */
	84
bec43661	85	static int ts_open(struct file *file)
1da177e4	86	{
50462eb0	87	struct video_device *vdev = video_devdata(file);
63b0d5ad	88	struct saa7134_dev *dev = video_drvdata(file);
1da177e4 LT	89	int err;
1da177e4 LT	90
50462eb0	91	dprintk("open dev=%s\n", video_device_node_name(vdev));
1da177e4	92	err = -EBUSY;
64f9477f	93	if (!mutex_trylock(&dev->empress_tsq.vb_lock))
7415c760	94	return err;
1052efe0	95	if (atomic_read(&dev->empress_users))
7415c760	96	goto done;
1da177e4	97
b784e526 RB	98	/* Unmute audio */
	99	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
	100	saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
	101
1052efe0	102	atomic_inc(&dev->empress_users);
1da177e4 LT	103	file->private_data = dev;
	104	err = 0;
	105
1da177e4	106	done:
7415c760	107	mutex_unlock(&dev->empress_tsq.vb_lock);
1da177e4 LT	108	return err;
	109	}
	110
bec43661	111	static int ts_release(struct file *file)
1da177e4 LT	112	{
	113	struct saa7134_dev *dev = file->private_data;
	114
053fcb60	115	videobuf_stop(&dev->empress_tsq);
1da177e4	116	videobuf_mmap_free(&dev->empress_tsq);
1da177e4 LT	117
	118	/* stop the encoder */
	119	ts_reset_encoder(dev);
	120
b784e526 RB	121	/* Mute audio */
	122	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
	123	saa_readb(SAA7134_AUDIO_MUTE_CTRL) \| (1 << 6));
	124
1052efe0	125	atomic_dec(&dev->empress_users);
a1789873	126
1da177e4 LT	127	return 0;
	128	}
	129
	130	static ssize_t
	131	ts_read(struct file file, char __user data, size_t count, loff_t *ppos)
	132	{
	133	struct saa7134_dev *dev = file->private_data;
	134
	135	if (!dev->empress_started)
	136	ts_init_encoder(dev);
	137
	138	return videobuf_read_stream(&dev->empress_tsq,
	139	data, count, ppos, 0,
	140	file->f_flags & O_NONBLOCK);
	141	}
	142
	143	static unsigned int
	144	ts_poll(struct file file, struct poll_table_struct wait)
	145	{
	146	struct saa7134_dev *dev = file->private_data;
	147
	148	return videobuf_poll_stream(file, &dev->empress_tsq, wait);
	149	}
	150
	151
	152	static int
	153	ts_mmap(struct file file, struct vm_area_struct vma)
	154	{
	155	struct saa7134_dev *dev = file->private_data;
	156
	157	return videobuf_mmap_mapper(&dev->empress_tsq, vma);
	158	}
	159
	160	/*
	161	* This function is _not_ called directly, but from
	162	* video_generic_ioctl (and maybe others). userspace
	163	* copying is done already, arg is a kernel pointer.
	164	*/
2c10e8a8 MCC	165
	166	static int empress_querycap(struct file file, void priv,
	167	struct v4l2_capability *cap)
1da177e4	168	{
388748e6	169	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	170
	171	strcpy(cap->driver, "saa7134");
	172	strlcpy(cap->card, saa7134_boards[dev->board].name,
	173	sizeof(cap->card));
	174	sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
	175	cap->version = SAA7134_VERSION_CODE;
	176	cap->capabilities =
	177	V4L2_CAP_VIDEO_CAPTURE \|
	178	V4L2_CAP_READWRITE \|
	179	V4L2_CAP_STREAMING;
	180	return 0;
	181	}
1da177e4	182
2c10e8a8 MCC	183	static int empress_enum_input(struct file file, void priv,
	184	struct v4l2_input *i)
	185	{
	186	if (i->index != 0)
	187	return -EINVAL;
1da177e4	188
2c10e8a8 MCC	189	i->type = V4L2_INPUT_TYPE_CAMERA;
2c10e8a8 MCC	190	strcpy(i->name, "CCIR656");
1da177e4	191
2c10e8a8 MCC	192	return 0;
2c10e8a8 MCC	193	}
1da177e4	194
2c10e8a8 MCC	195	static int empress_g_input(struct file file, void priv, unsigned int *i)
	196	{
	197	*i = 0;
	198	return 0;
	199	}
1da177e4	200
2c10e8a8 MCC	201	static int empress_s_input(struct file file, void priv, unsigned int i)
	202	{
	203	if (i != 0)
	204	return -EINVAL;
1da177e4	205
2c10e8a8 MCC	206	return 0;
2c10e8a8 MCC	207	}
1da177e4	208
78b526a4	209	static int empress_enum_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	210	struct v4l2_fmtdesc *f)
	211	{
	212	if (f->index != 0)
	213	return -EINVAL;
1da177e4	214
2c10e8a8 MCC	215	strlcpy(f->description, "MPEG TS", sizeof(f->description));
2c10e8a8 MCC	216	f->pixelformat = V4L2_PIX_FMT_MPEG;
1da177e4	217
2c10e8a8 MCC	218	return 0;
2c10e8a8 MCC	219	}
1da177e4	220
78b526a4	221	static int empress_g_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	222	struct v4l2_format *f)
2c10e8a8 MCC	223	{
a14fe960	224	struct saa7134_dev *dev = file->private_data;
31bf95fb	225	struct v4l2_mbus_framefmt mbus_fmt;
1da177e4	226
31bf95fb	227	saa_call_all(dev, video, g_mbus_fmt, &mbus_fmt);
1da177e4	228
31bf95fb	229	v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
2c10e8a8 MCC	230	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	231	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
1da177e4	232
2c10e8a8 MCC	233	return 0;
2c10e8a8 MCC	234	}
1da177e4	235
78b526a4	236	static int empress_s_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	237	struct v4l2_format *f)
2c10e8a8 MCC	238	{
a14fe960	239	struct saa7134_dev *dev = file->private_data;
31bf95fb	240	struct v4l2_mbus_framefmt mbus_fmt;
1da177e4	241
31bf95fb HV	242	v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
	243	saa_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
	244	v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
1da177e4	245
2c10e8a8 MCC	246	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	247	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
1da177e4	248
2c10e8a8 MCC	249	return 0;
	250	}
	251
6b6b7543 DB	252	static int empress_try_fmt_vid_cap(struct file file, void priv,
	253	struct v4l2_format *f)
	254	{
	255	struct saa7134_dev *dev = file->private_data;
	256
	257	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
	258	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
	259
	260	return 0;
	261	}
2c10e8a8 MCC	262
	263	static int empress_reqbufs(struct file file, void priv,
	264	struct v4l2_requestbuffers *p)
	265	{
a14fe960	266	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	267
	268	return videobuf_reqbufs(&dev->empress_tsq, p);
	269	}
	270
	271	static int empress_querybuf(struct file file, void priv,
	272	struct v4l2_buffer *b)
	273	{
a14fe960	274	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	275
	276	return videobuf_querybuf(&dev->empress_tsq, b);
	277	}
	278
	279	static int empress_qbuf(struct file file, void priv, struct v4l2_buffer *b)
	280	{
a14fe960	281	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	282
	283	return videobuf_qbuf(&dev->empress_tsq, b);
	284	}
	285
	286	static int empress_dqbuf(struct file file, void priv, struct v4l2_buffer *b)
	287	{
a14fe960	288	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	289
	290	return videobuf_dqbuf(&dev->empress_tsq, b,
	291	file->f_flags & O_NONBLOCK);
	292	}
	293
	294	static int empress_streamon(struct file file, void priv,
	295	enum v4l2_buf_type type)
	296	{
a14fe960	297	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	298
	299	return videobuf_streamon(&dev->empress_tsq);
	300	}
	301
	302	static int empress_streamoff(struct file file, void priv,
	303	enum v4l2_buf_type type)
	304	{
a14fe960	305	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	306
	307	return videobuf_streamoff(&dev->empress_tsq);
	308	}
	309
	310	static int empress_s_ext_ctrls(struct file file, void priv,
	311	struct v4l2_ext_controls *ctrls)
	312	{
a14fe960	313	struct saa7134_dev *dev = file->private_data;
8b53b39d	314	int err;
2c10e8a8 MCC	315
	316	/* count == 0 is abused in saa6752hs.c, so that special
	317	case is handled here explicitly. */
	318	if (ctrls->count == 0)
86b79d66	319	return 0;
1da177e4	320
2c10e8a8 MCC	321	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
	322	return -EINVAL;
	323
fac6986c	324	err = saa_call_empress(dev, core, s_ext_ctrls, ctrls);
2c10e8a8 MCC	325	ts_init_encoder(dev);
2c10e8a8 MCC	326
8b53b39d	327	return err;
1da177e4 LT	328	}
1da177e4 LT	329
2c10e8a8 MCC	330	static int empress_g_ext_ctrls(struct file file, void priv,
2c10e8a8 MCC	331	struct v4l2_ext_controls *ctrls)
1da177e4	332	{
a14fe960	333	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	334
	335	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
	336	return -EINVAL;
fac6986c	337	return saa_call_empress(dev, core, g_ext_ctrls, ctrls);
8b53b39d	338	}
2c10e8a8	339
531d83a3 HV	340	static int empress_g_ctrl(struct file file, void priv,
	341	struct v4l2_control *c)
	342	{
	343	struct saa7134_dev *dev = file->private_data;
	344
	345	return saa7134_g_ctrl_internal(dev, NULL, c);
	346	}
	347
	348	static int empress_s_ctrl(struct file file, void priv,
	349	struct v4l2_control *c)
	350	{
	351	struct saa7134_dev *dev = file->private_data;
	352
	353	return saa7134_s_ctrl_internal(dev, NULL, c);
	354	}
	355
8b53b39d HV	356	static int empress_queryctrl(struct file file, void priv,
	357	struct v4l2_queryctrl *c)
	358	{
2ba58894	359	/* Must be sorted from low to high control ID! */
8b53b39d HV	360	static const u32 user_ctrls[] = {
	361	V4L2_CID_USER_CLASS,
	362	V4L2_CID_BRIGHTNESS,
	363	V4L2_CID_CONTRAST,
	364	V4L2_CID_SATURATION,
	365	V4L2_CID_HUE,
	366	V4L2_CID_AUDIO_VOLUME,
	367	V4L2_CID_AUDIO_MUTE,
	368	V4L2_CID_HFLIP,
	369	0
	370	};
	371
2ba58894	372	/* Must be sorted from low to high control ID! */
8b53b39d HV	373	static const u32 mpeg_ctrls[] = {
	374	V4L2_CID_MPEG_CLASS,
	375	V4L2_CID_MPEG_STREAM_TYPE,
	376	V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
	377	V4L2_CID_MPEG_AUDIO_ENCODING,
	378	V4L2_CID_MPEG_AUDIO_L2_BITRATE,
	379	V4L2_CID_MPEG_VIDEO_ENCODING,
	380	V4L2_CID_MPEG_VIDEO_ASPECT,
	381	V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
	382	V4L2_CID_MPEG_VIDEO_BITRATE,
	383	V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
	384	0
	385	};
	386	static const u32 *ctrl_classes[] = {
	387	user_ctrls,
	388	mpeg_ctrls,
	389	NULL
	390	};
	391	struct saa7134_dev *dev = file->private_data;
	392
	393	c->id = v4l2_ctrl_next(ctrl_classes, c->id);
	394	if (c->id == 0)
	395	return -EINVAL;
	396	if (c->id == V4L2_CID_USER_CLASS \|\| c->id == V4L2_CID_MPEG_CLASS)
10afbef1	397	return v4l2_ctrl_query_fill(c, 0, 0, 0, 0);
8b53b39d HV	398	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
8b53b39d HV	399	return saa7134_queryctrl(file, priv, c);
fac6986c	400	return saa_call_empress(dev, core, queryctrl, c);
8b53b39d HV	401	}
	402
	403	static int empress_querymenu(struct file file, void priv,
	404	struct v4l2_querymenu *c)
	405	{
	406	struct saa7134_dev *dev = file->private_data;
	407
	408	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
	409	return -EINVAL;
fac6986c	410	return saa_call_empress(dev, core, querymenu, c);
1da177e4 LT	411	}
1da177e4 LT	412
e281db58	413	static int empress_g_chip_ident(struct file file, void fh,
aecde8b5	414	struct v4l2_dbg_chip_ident *chip)
e281db58 HV	415	{
	416	struct saa7134_dev *dev = file->private_data;
	417
	418	chip->ident = V4L2_IDENT_NONE;
	419	chip->revision = 0;
aecde8b5 HV	420	if (chip->match.type == V4L2_CHIP_MATCH_I2C_DRIVER &&
aecde8b5 HV	421	!strcmp(chip->match.name, "saa6752hs"))
fac6986c	422	return saa_call_empress(dev, core, g_chip_ident, chip);
195784b8	423	if (chip->match.type == V4L2_CHIP_MATCH_I2C_ADDR)
fac6986c	424	return saa_call_empress(dev, core, g_chip_ident, chip);
e281db58 HV	425	return -EINVAL;
	426	}
	427
9afb7377 HV	428	static int empress_s_std(struct file file, void priv, v4l2_std_id *id)
	429	{
	430	struct saa7134_dev *dev = file->private_data;
	431
	432	return saa7134_s_std_internal(dev, NULL, id);
	433	}
	434
	435	static int empress_g_std(struct file file, void priv, v4l2_std_id *id)
	436	{
	437	struct saa7134_dev *dev = file->private_data;
	438
	439	*id = dev->tvnorm->id;
	440	return 0;
	441	}
e281db58	442
bec43661	443	static const struct v4l2_file_operations ts_fops =
1da177e4 LT	444	{
	445	.owner = THIS_MODULE,
	446	.open = ts_open,
	447	.release = ts_release,
	448	.read = ts_read,
	449	.poll = ts_poll,
	450	.mmap = ts_mmap,
2c10e8a8	451	.ioctl = video_ioctl2,
1da177e4 LT	452	};
1da177e4 LT	453
a399810c	454	static const struct v4l2_ioctl_ops ts_ioctl_ops = {
2c10e8a8	455	.vidioc_querycap = empress_querycap,
78b526a4	456	.vidioc_enum_fmt_vid_cap = empress_enum_fmt_vid_cap,
6b6b7543	457	.vidioc_try_fmt_vid_cap = empress_try_fmt_vid_cap,
78b526a4 HV	458	.vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap,
78b526a4 HV	459	.vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap,
2c10e8a8 MCC	460	.vidioc_reqbufs = empress_reqbufs,
	461	.vidioc_querybuf = empress_querybuf,
	462	.vidioc_qbuf = empress_qbuf,
	463	.vidioc_dqbuf = empress_dqbuf,
	464	.vidioc_streamon = empress_streamon,
	465	.vidioc_streamoff = empress_streamoff,
	466	.vidioc_s_ext_ctrls = empress_s_ext_ctrls,
	467	.vidioc_g_ext_ctrls = empress_g_ext_ctrls,
	468	.vidioc_enum_input = empress_enum_input,
	469	.vidioc_g_input = empress_g_input,
	470	.vidioc_s_input = empress_s_input,
8b53b39d HV	471	.vidioc_queryctrl = empress_queryctrl,
8b53b39d HV	472	.vidioc_querymenu = empress_querymenu,
531d83a3 HV	473	.vidioc_g_ctrl = empress_g_ctrl,
531d83a3 HV	474	.vidioc_s_ctrl = empress_s_ctrl,
e281db58	475	.vidioc_g_chip_ident = empress_g_chip_ident,
9afb7377 HV	476	.vidioc_s_std = empress_s_std,
9afb7377 HV	477	.vidioc_g_std = empress_g_std,
a399810c HV	478	};
	479
	480	/* ----------------------------------------------------------- */
	481
	482	static struct video_device saa7134_empress_template = {
	483	.name = "saa7134-empress",
a399810c	484	.fops = &ts_fops,
a399810c	485	.ioctl_ops = &ts_ioctl_ops,
2c10e8a8 MCC	486
	487	.tvnorms = SAA7134_NORMS,
	488	.current_norm = V4L2_STD_PAL,
1da177e4 LT	489	};
1da177e4 LT	490
c4028958	491	static void empress_signal_update(struct work_struct *work)
1da177e4	492	{
c4028958 DH	493	struct saa7134_dev* dev =
c4028958 DH	494	container_of(work, struct saa7134_dev, empress_workqueue);
1da177e4 LT	495
	496	if (dev->nosignal) {
	497	dprintk("no video signal\n");
1da177e4 LT	498	} else {
1da177e4 LT	499	dprintk("video signal acquired\n");
1da177e4 LT	500	}
	501	}
	502
	503	static void empress_signal_change(struct saa7134_dev *dev)
	504	{
	505	schedule_work(&dev->empress_workqueue);
	506	}
	507
	508
	509	static int empress_init(struct saa7134_dev *dev)
	510	{
	511	int err;
	512
5016381c	513	dprintk("%s: %s\n",dev->name,__func__);
1da177e4 LT	514	dev->empress_dev = video_device_alloc();
	515	if (NULL == dev->empress_dev)
	516	return -ENOMEM;
	517	*(dev->empress_dev) = saa7134_empress_template;
5e85e732	518	dev->empress_dev->parent = &dev->pci->dev;
1da177e4 LT	519	dev->empress_dev->release = video_device_release;
	520	snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name),
	521	"%s empress (%s)", dev->name,
	522	saa7134_boards[dev->board].name);
	523
c4028958	524	INIT_WORK(&dev->empress_workqueue, empress_signal_update);
1da177e4	525
63b0d5ad	526	video_set_drvdata(dev->empress_dev, dev);
1da177e4 LT	527	err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER,
	528	empress_nr[dev->nr]);
	529	if (err < 0) {
	530	printk(KERN_INFO "%s: can't register video device\n",
	531	dev->name);
	532	video_device_release(dev->empress_dev);
	533	dev->empress_dev = NULL;
	534	return err;
	535	}
38c7c036 LP	536	printk(KERN_INFO "%s: registered device %s [mpeg]\n",
38c7c036 LP	537	dev->name, video_device_node_name(dev->empress_dev));
1da177e4	538
0705135e GL	539	videobuf_queue_sg_init(&dev->empress_tsq, &saa7134_ts_qops,
0705135e GL	540	&dev->pci->dev, &dev->slock,
1da177e4 LT	541	V4L2_BUF_TYPE_VIDEO_CAPTURE,
	542	V4L2_FIELD_ALTERNATE,
	543	sizeof(struct saa7134_buf),
08bff03e	544	dev, NULL);
1da177e4	545
c4028958	546	empress_signal_update(&dev->empress_workqueue);
1da177e4 LT	547	return 0;
	548	}
	549
	550	static int empress_fini(struct saa7134_dev *dev)
	551	{
5016381c	552	dprintk("%s: %s\n",dev->name,__func__);
1da177e4 LT	553
	554	if (NULL == dev->empress_dev)
	555	return 0;
	556	flush_scheduled_work();
	557	video_unregister_device(dev->empress_dev);
	558	dev->empress_dev = NULL;
	559	return 0;
	560	}
	561
	562	static struct saa7134_mpeg_ops empress_ops = {
	563	.type = SAA7134_MPEG_EMPRESS,
	564	.init = empress_init,
	565	.fini = empress_fini,
	566	.signal_change = empress_signal_change,
	567	};
	568
	569	static int __init empress_register(void)
	570	{
	571	return saa7134_ts_register(&empress_ops);
	572	}
	573
	574	static void __exit empress_unregister(void)
	575	{
	576	saa7134_ts_unregister(&empress_ops);
	577	}
	578
	579	module_init(empress_register);
	580	module_exit(empress_unregister);
	581
	582	/* ----------------------------------------------------------- */
	583	/*
	584	* Local variables:
	585	* c-basic-offset: 8
	586	* End:
	587	*/