[deliverable/linux.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/slab.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);
	saa7134_i2c_call_clients(dev, VIDIOC_INT_INIT, &leading_null_bytes);
	dev->empress_started = 1;
	return 0;
}

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

static int ts_open(struct file *file)
{
	int minor = video_devdata(file)->minor;
	struct saa7134_dev *dev;
	int err;

	lock_kernel();
	list_for_each_entry(dev, &saa7134_devlist, devlist)
		if (dev->empress_dev && dev->empress_dev->minor == minor)
			goto found;
	unlock_kernel();
	return -ENODEV;
 found:

	dprintk("open minor=%d\n",minor);
	err = -EBUSY;
	if (!mutex_trylock(&dev->empress_tsq.vb_lock))
		goto done;
	if (atomic_read(&dev->empress_users))
		goto done_up;

	/* 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_up:
	mutex_unlock(&dev->empress_tsq.vb_lock);
done:
	unlock_kernel();
	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;

	saa7134_i2c_call_clients(dev, VIDIOC_G_FMT, f);

	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;

	saa7134_i2c_call_clients(dev, VIDIOC_S_FMT, f);

	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 = saa7134_i2c_call_saa6752(dev, VIDIOC_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 saa7134_i2c_call_saa6752(dev, VIDIOC_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)
{
	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
	};

	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_std(c);
	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
		return saa7134_queryctrl(file, priv, c);
	return saa7134_i2c_call_saa6752(dev, VIDIOC_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 saa7134_i2c_call_saa6752(dev, VIDIOC_QUERYMENU, c);
}

static int empress_g_chip_ident(struct file *file, void *fh,
	       struct v4l2_chip_ident *chip)
{
	struct saa7134_dev *dev = file->private_data;

	chip->ident = V4L2_IDENT_NONE;
	chip->revision = 0;
	if (dev->mpeg_i2c_client == NULL)
		return -EINVAL;
	if (chip->match_type == V4L2_CHIP_MATCH_I2C_DRIVER &&
	    chip->match_chip == I2C_DRIVERID_SAA6752HS)
		return saa7134_i2c_call_saa6752(dev, VIDIOC_G_CHIP_IDENT, chip);
	if (chip->match_type == V4L2_CHIP_MATCH_I2C_ADDR &&
	    chip->match_chip == dev->mpeg_i2c_client->addr)
		return saa7134_i2c_call_saa6752(dev, VIDIOC_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_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,
	.minor	       = -1,
	.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");
		ts_reset_encoder(dev);
	} else {
		dprintk("video signal acquired\n");
		if (atomic_read(&dev->empress_users))
			ts_init_encoder(dev);
	}
}

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);

	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 video%d [mpeg]\n",
	       dev->name, dev->empress_dev->num);

	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);

	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 LT	23	#include <linux/kernel.h>
	24	#include <linux/slab.h>
	25	#include <linux/delay.h>
	26
	27	#include "saa7134-reg.h"
	28	#include "saa7134.h"
	29
	30	#include <media/saa6752hs.h>
5e453dc7	31	#include <media/v4l2-common.h>
e281db58	32	#include <media/v4l2-chip-ident.h>
1da177e4 LT	33
	34	/* ------------------------------------------------------------------ */
	35
	36	MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
	37	MODULE_LICENSE("GPL");
	38
	39	static unsigned int empress_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
674434c6	40
1da177e4 LT	41	module_param_array(empress_nr, int, NULL, 0444);
	42	MODULE_PARM_DESC(empress_nr,"ts device number");
	43
ff699e6b	44	static unsigned int debug;
1da177e4 LT	45	module_param(debug, int, 0644);
	46	MODULE_PARM_DESC(debug,"enable debug messages");
	47
	48	#define dprintk(fmt, arg...) if (debug) \
	49	printk(KERN_DEBUG "%s/empress: " fmt, dev->name , ## arg)
	50
	51	/* ------------------------------------------------------------------ */
	52
	53	static void ts_reset_encoder(struct saa7134_dev* dev)
	54	{
	55	if (!dev->empress_started)
	56	return;
	57
	58	saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
	59	msleep(10);
4ac97914	60	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
1da177e4 LT	61	msleep(100);
	62	dev->empress_started = 0;
	63	}
	64
	65	static int ts_init_encoder(struct saa7134_dev* dev)
	66	{
f03813e4	67	u32 leading_null_bytes = 0;
86b79d66	68
f03813e4 DB	69	/* If more cards start to need this, then this
	70	should probably be added to the card definitions. */
	71	switch (dev->board) {
	72	case SAA7134_BOARD_BEHOLD_M6:
	73	case SAA7134_BOARD_BEHOLD_M63:
	74	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
	75	leading_null_bytes = 1;
	76	break;
	77	}
1da177e4	78	ts_reset_encoder(dev);
f03813e4	79	saa7134_i2c_call_clients(dev, VIDIOC_INT_INIT, &leading_null_bytes);
1da177e4	80	dev->empress_started = 1;
4ac97914	81	return 0;
1da177e4 LT	82	}
	83
	84	/* ------------------------------------------------------------------ */
	85
bec43661	86	static int ts_open(struct file *file)
1da177e4	87	{
bec43661	88	int minor = video_devdata(file)->minor;
6d28e989	89	struct saa7134_dev *dev;
1da177e4 LT	90	int err;
1da177e4 LT	91
d56dc612	92	lock_kernel();
6d28e989 TP	93	list_for_each_entry(dev, &saa7134_devlist, devlist)
	94	if (dev->empress_dev && dev->empress_dev->minor == minor)
	95	goto found;
d56dc612	96	unlock_kernel();
6d28e989 TP	97	return -ENODEV;
6d28e989 TP	98	found:
1da177e4 LT	99
	100	dprintk("open minor=%d\n",minor);
	101	err = -EBUSY;
64f9477f	102	if (!mutex_trylock(&dev->empress_tsq.vb_lock))
1da177e4	103	goto done;
1052efe0	104	if (atomic_read(&dev->empress_users))
1da177e4 LT	105	goto done_up;
1da177e4 LT	106
b784e526 RB	107	/* Unmute audio */
	108	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
	109	saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
	110
1052efe0	111	atomic_inc(&dev->empress_users);
1da177e4 LT	112	file->private_data = dev;
	113	err = 0;
	114
	115	done_up:
64f9477f	116	mutex_unlock(&dev->empress_tsq.vb_lock);
1da177e4	117	done:
d56dc612	118	unlock_kernel();
1da177e4 LT	119	return err;
	120	}
	121
bec43661	122	static int ts_release(struct file *file)
1da177e4 LT	123	{
	124	struct saa7134_dev *dev = file->private_data;
	125
053fcb60	126	videobuf_stop(&dev->empress_tsq);
1da177e4	127	videobuf_mmap_free(&dev->empress_tsq);
1da177e4 LT	128
	129	/* stop the encoder */
	130	ts_reset_encoder(dev);
	131
b784e526 RB	132	/* Mute audio */
	133	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
	134	saa_readb(SAA7134_AUDIO_MUTE_CTRL) \| (1 << 6));
	135
1052efe0	136	atomic_dec(&dev->empress_users);
a1789873	137
1da177e4 LT	138	return 0;
	139	}
	140
	141	static ssize_t
	142	ts_read(struct file file, char __user data, size_t count, loff_t *ppos)
	143	{
	144	struct saa7134_dev *dev = file->private_data;
	145
	146	if (!dev->empress_started)
	147	ts_init_encoder(dev);
	148
	149	return videobuf_read_stream(&dev->empress_tsq,
	150	data, count, ppos, 0,
	151	file->f_flags & O_NONBLOCK);
	152	}
	153
	154	static unsigned int
	155	ts_poll(struct file file, struct poll_table_struct wait)
	156	{
	157	struct saa7134_dev *dev = file->private_data;
	158
	159	return videobuf_poll_stream(file, &dev->empress_tsq, wait);
	160	}
	161
	162
	163	static int
	164	ts_mmap(struct file file, struct vm_area_struct vma)
	165	{
	166	struct saa7134_dev *dev = file->private_data;
	167
	168	return videobuf_mmap_mapper(&dev->empress_tsq, vma);
	169	}
	170
	171	/*
	172	* This function is _not_ called directly, but from
	173	* video_generic_ioctl (and maybe others). userspace
	174	* copying is done already, arg is a kernel pointer.
	175	*/
2c10e8a8 MCC	176
	177	static int empress_querycap(struct file file, void priv,
	178	struct v4l2_capability *cap)
1da177e4	179	{
388748e6	180	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	181
	182	strcpy(cap->driver, "saa7134");
	183	strlcpy(cap->card, saa7134_boards[dev->board].name,
	184	sizeof(cap->card));
	185	sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
	186	cap->version = SAA7134_VERSION_CODE;
	187	cap->capabilities =
	188	V4L2_CAP_VIDEO_CAPTURE \|
	189	V4L2_CAP_READWRITE \|
	190	V4L2_CAP_STREAMING;
	191	return 0;
	192	}
1da177e4	193
2c10e8a8 MCC	194	static int empress_enum_input(struct file file, void priv,
	195	struct v4l2_input *i)
	196	{
	197	if (i->index != 0)
	198	return -EINVAL;
1da177e4	199
2c10e8a8 MCC	200	i->type = V4L2_INPUT_TYPE_CAMERA;
2c10e8a8 MCC	201	strcpy(i->name, "CCIR656");
1da177e4	202
2c10e8a8 MCC	203	return 0;
2c10e8a8 MCC	204	}
1da177e4	205
2c10e8a8 MCC	206	static int empress_g_input(struct file file, void priv, unsigned int *i)
	207	{
	208	*i = 0;
	209	return 0;
	210	}
1da177e4	211
2c10e8a8 MCC	212	static int empress_s_input(struct file file, void priv, unsigned int i)
	213	{
	214	if (i != 0)
	215	return -EINVAL;
1da177e4	216
2c10e8a8 MCC	217	return 0;
2c10e8a8 MCC	218	}
1da177e4	219
78b526a4	220	static int empress_enum_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	221	struct v4l2_fmtdesc *f)
	222	{
	223	if (f->index != 0)
	224	return -EINVAL;
1da177e4	225
2c10e8a8 MCC	226	strlcpy(f->description, "MPEG TS", sizeof(f->description));
2c10e8a8 MCC	227	f->pixelformat = V4L2_PIX_FMT_MPEG;
1da177e4	228
2c10e8a8 MCC	229	return 0;
2c10e8a8 MCC	230	}
1da177e4	231
78b526a4	232	static int empress_g_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	233	struct v4l2_format *f)
2c10e8a8 MCC	234	{
a14fe960	235	struct saa7134_dev *dev = file->private_data;
1da177e4	236
2c10e8a8	237	saa7134_i2c_call_clients(dev, VIDIOC_G_FMT, f);
1da177e4	238
2c10e8a8 MCC	239	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	240	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
1da177e4	241
2c10e8a8 MCC	242	return 0;
2c10e8a8 MCC	243	}
1da177e4	244
78b526a4	245	static int empress_s_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	246	struct v4l2_format *f)
2c10e8a8 MCC	247	{
a14fe960	248	struct saa7134_dev *dev = file->private_data;
1da177e4	249
2c10e8a8	250	saa7134_i2c_call_clients(dev, VIDIOC_S_FMT, f);
1da177e4	251
2c10e8a8 MCC	252	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	253	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
1da177e4	254
2c10e8a8 MCC	255	return 0;
	256	}
	257
	258
	259	static int empress_reqbufs(struct file file, void priv,
	260	struct v4l2_requestbuffers *p)
	261	{
a14fe960	262	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	263
	264	return videobuf_reqbufs(&dev->empress_tsq, p);
	265	}
	266
	267	static int empress_querybuf(struct file file, void priv,
	268	struct v4l2_buffer *b)
	269	{
a14fe960	270	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	271
	272	return videobuf_querybuf(&dev->empress_tsq, b);
	273	}
	274
	275	static int empress_qbuf(struct file file, void priv, struct v4l2_buffer *b)
	276	{
a14fe960	277	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	278
	279	return videobuf_qbuf(&dev->empress_tsq, b);
	280	}
	281
	282	static int empress_dqbuf(struct file file, void priv, struct v4l2_buffer *b)
	283	{
a14fe960	284	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	285
	286	return videobuf_dqbuf(&dev->empress_tsq, b,
	287	file->f_flags & O_NONBLOCK);
	288	}
	289
	290	static int empress_streamon(struct file file, void priv,
	291	enum v4l2_buf_type type)
	292	{
a14fe960	293	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	294
	295	return videobuf_streamon(&dev->empress_tsq);
	296	}
	297
	298	static int empress_streamoff(struct file file, void priv,
	299	enum v4l2_buf_type type)
	300	{
a14fe960	301	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	302
	303	return videobuf_streamoff(&dev->empress_tsq);
	304	}
	305
	306	static int empress_s_ext_ctrls(struct file file, void priv,
	307	struct v4l2_ext_controls *ctrls)
	308	{
a14fe960	309	struct saa7134_dev *dev = file->private_data;
8b53b39d	310	int err;
2c10e8a8 MCC	311
	312	/* count == 0 is abused in saa6752hs.c, so that special
	313	case is handled here explicitly. */
	314	if (ctrls->count == 0)
86b79d66	315	return 0;
1da177e4	316
2c10e8a8 MCC	317	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
	318	return -EINVAL;
	319
8b53b39d	320	err = saa7134_i2c_call_saa6752(dev, VIDIOC_S_EXT_CTRLS, ctrls);
2c10e8a8 MCC	321	ts_init_encoder(dev);
2c10e8a8 MCC	322
8b53b39d	323	return err;
1da177e4 LT	324	}
1da177e4 LT	325
2c10e8a8 MCC	326	static int empress_g_ext_ctrls(struct file file, void priv,
2c10e8a8 MCC	327	struct v4l2_ext_controls *ctrls)
1da177e4	328	{
a14fe960	329	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	330
	331	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
	332	return -EINVAL;
8b53b39d HV	333	return saa7134_i2c_call_saa6752(dev, VIDIOC_G_EXT_CTRLS, ctrls);
8b53b39d HV	334	}
2c10e8a8	335
531d83a3 HV	336	static int empress_g_ctrl(struct file file, void priv,
	337	struct v4l2_control *c)
	338	{
	339	struct saa7134_dev *dev = file->private_data;
	340
	341	return saa7134_g_ctrl_internal(dev, NULL, c);
	342	}
	343
	344	static int empress_s_ctrl(struct file file, void priv,
	345	struct v4l2_control *c)
	346	{
	347	struct saa7134_dev *dev = file->private_data;
	348
	349	return saa7134_s_ctrl_internal(dev, NULL, c);
	350	}
	351
8b53b39d HV	352	static int empress_queryctrl(struct file file, void priv,
	353	struct v4l2_queryctrl *c)
	354	{
	355	static const u32 user_ctrls[] = {
	356	V4L2_CID_USER_CLASS,
	357	V4L2_CID_BRIGHTNESS,
	358	V4L2_CID_CONTRAST,
	359	V4L2_CID_SATURATION,
	360	V4L2_CID_HUE,
	361	V4L2_CID_AUDIO_VOLUME,
	362	V4L2_CID_AUDIO_MUTE,
	363	V4L2_CID_HFLIP,
	364	0
	365	};
	366
	367	static const u32 mpeg_ctrls[] = {
	368	V4L2_CID_MPEG_CLASS,
	369	V4L2_CID_MPEG_STREAM_TYPE,
	370	V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
	371	V4L2_CID_MPEG_AUDIO_ENCODING,
	372	V4L2_CID_MPEG_AUDIO_L2_BITRATE,
	373	V4L2_CID_MPEG_VIDEO_ENCODING,
	374	V4L2_CID_MPEG_VIDEO_ASPECT,
	375	V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
	376	V4L2_CID_MPEG_VIDEO_BITRATE,
	377	V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
	378	0
	379	};
	380	static const u32 *ctrl_classes[] = {
	381	user_ctrls,
	382	mpeg_ctrls,
	383	NULL
	384	};
	385	struct saa7134_dev *dev = file->private_data;
	386
	387	c->id = v4l2_ctrl_next(ctrl_classes, c->id);
	388	if (c->id == 0)
	389	return -EINVAL;
	390	if (c->id == V4L2_CID_USER_CLASS \|\| c->id == V4L2_CID_MPEG_CLASS)
	391	return v4l2_ctrl_query_fill_std(c);
	392	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
	393	return saa7134_queryctrl(file, priv, c);
	394	return saa7134_i2c_call_saa6752(dev, VIDIOC_QUERYCTRL, c);
	395	}
	396
	397	static int empress_querymenu(struct file file, void priv,
	398	struct v4l2_querymenu *c)
	399	{
	400	struct saa7134_dev *dev = file->private_data;
	401
	402	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
	403	return -EINVAL;
	404	return saa7134_i2c_call_saa6752(dev, VIDIOC_QUERYMENU, c);
1da177e4 LT	405	}
1da177e4 LT	406
e281db58 HV	407	static int empress_g_chip_ident(struct file file, void fh,
	408	struct v4l2_chip_ident *chip)
	409	{
	410	struct saa7134_dev *dev = file->private_data;
	411
	412	chip->ident = V4L2_IDENT_NONE;
	413	chip->revision = 0;
	414	if (dev->mpeg_i2c_client == NULL)
	415	return -EINVAL;
	416	if (chip->match_type == V4L2_CHIP_MATCH_I2C_DRIVER &&
	417	chip->match_chip == I2C_DRIVERID_SAA6752HS)
	418	return saa7134_i2c_call_saa6752(dev, VIDIOC_G_CHIP_IDENT, chip);
	419	if (chip->match_type == V4L2_CHIP_MATCH_I2C_ADDR &&
	420	chip->match_chip == dev->mpeg_i2c_client->addr)
	421	return saa7134_i2c_call_saa6752(dev, VIDIOC_G_CHIP_IDENT, chip);
	422	return -EINVAL;
	423	}
	424
9afb7377 HV	425	static int empress_s_std(struct file file, void priv, v4l2_std_id *id)
	426	{
	427	struct saa7134_dev *dev = file->private_data;
	428
	429	return saa7134_s_std_internal(dev, NULL, id);
	430	}
	431
	432	static int empress_g_std(struct file file, void priv, v4l2_std_id *id)
	433	{
	434	struct saa7134_dev *dev = file->private_data;
	435
	436	*id = dev->tvnorm->id;
	437	return 0;
	438	}
e281db58	439
bec43661	440	static const struct v4l2_file_operations ts_fops =
1da177e4 LT	441	{
	442	.owner = THIS_MODULE,
	443	.open = ts_open,
	444	.release = ts_release,
	445	.read = ts_read,
	446	.poll = ts_poll,
	447	.mmap = ts_mmap,
2c10e8a8	448	.ioctl = video_ioctl2,
1da177e4 LT	449	};
1da177e4 LT	450
a399810c	451	static const struct v4l2_ioctl_ops ts_ioctl_ops = {
2c10e8a8	452	.vidioc_querycap = empress_querycap,
78b526a4 HV	453	.vidioc_enum_fmt_vid_cap = empress_enum_fmt_vid_cap,
	454	.vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap,
	455	.vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap,
2c10e8a8 MCC	456	.vidioc_reqbufs = empress_reqbufs,
	457	.vidioc_querybuf = empress_querybuf,
	458	.vidioc_qbuf = empress_qbuf,
	459	.vidioc_dqbuf = empress_dqbuf,
	460	.vidioc_streamon = empress_streamon,
	461	.vidioc_streamoff = empress_streamoff,
	462	.vidioc_s_ext_ctrls = empress_s_ext_ctrls,
	463	.vidioc_g_ext_ctrls = empress_g_ext_ctrls,
	464	.vidioc_enum_input = empress_enum_input,
	465	.vidioc_g_input = empress_g_input,
	466	.vidioc_s_input = empress_s_input,
8b53b39d HV	467	.vidioc_queryctrl = empress_queryctrl,
8b53b39d HV	468	.vidioc_querymenu = empress_querymenu,
531d83a3 HV	469	.vidioc_g_ctrl = empress_g_ctrl,
531d83a3 HV	470	.vidioc_s_ctrl = empress_s_ctrl,
e281db58	471	.vidioc_g_chip_ident = empress_g_chip_ident,
9afb7377 HV	472	.vidioc_s_std = empress_s_std,
9afb7377 HV	473	.vidioc_g_std = empress_g_std,
a399810c HV	474	};
	475
	476	/* ----------------------------------------------------------- */
	477
	478	static struct video_device saa7134_empress_template = {
	479	.name = "saa7134-empress",
a399810c HV	480	.fops = &ts_fops,
	481	.minor = -1,
	482	.ioctl_ops = &ts_ioctl_ops,
2c10e8a8 MCC	483
	484	.tvnorms = SAA7134_NORMS,
	485	.current_norm = V4L2_STD_PAL,
1da177e4 LT	486	};
1da177e4 LT	487
c4028958	488	static void empress_signal_update(struct work_struct *work)
1da177e4	489	{
c4028958 DH	490	struct saa7134_dev* dev =
c4028958 DH	491	container_of(work, struct saa7134_dev, empress_workqueue);
1da177e4 LT	492
	493	if (dev->nosignal) {
	494	dprintk("no video signal\n");
	495	ts_reset_encoder(dev);
	496	} else {
	497	dprintk("video signal acquired\n");
1052efe0	498	if (atomic_read(&dev->empress_users))
1da177e4 LT	499	ts_init_encoder(dev);
	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 LT	525
	526	err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER,
	527	empress_nr[dev->nr]);
	528	if (err < 0) {
	529	printk(KERN_INFO "%s: can't register video device\n",
	530	dev->name);
	531	video_device_release(dev->empress_dev);
	532	dev->empress_dev = NULL;
	533	return err;
	534	}
	535	printk(KERN_INFO "%s: registered device video%d [mpeg]\n",
c6330fb8	536	dev->name, dev->empress_dev->num);
1da177e4	537
0705135e GL	538	videobuf_queue_sg_init(&dev->empress_tsq, &saa7134_ts_qops,
0705135e GL	539	&dev->pci->dev, &dev->slock,
1da177e4 LT	540	V4L2_BUF_TYPE_VIDEO_CAPTURE,
	541	V4L2_FIELD_ALTERNATE,
	542	sizeof(struct saa7134_buf),
	543	dev);
	544
c4028958	545	empress_signal_update(&dev->empress_workqueue);
1da177e4 LT	546	return 0;
	547	}
	548
	549	static int empress_fini(struct saa7134_dev *dev)
	550	{
5016381c	551	dprintk("%s: %s\n",dev->name,__func__);
1da177e4 LT	552
	553	if (NULL == dev->empress_dev)
	554	return 0;
	555	flush_scheduled_work();
	556	video_unregister_device(dev->empress_dev);
	557	dev->empress_dev = NULL;
	558	return 0;
	559	}
	560
	561	static struct saa7134_mpeg_ops empress_ops = {
	562	.type = SAA7134_MPEG_EMPRESS,
	563	.init = empress_init,
	564	.fini = empress_fini,
	565	.signal_change = empress_signal_change,
	566	};
	567
	568	static int __init empress_register(void)
	569	{
	570	return saa7134_ts_register(&empress_ops);
	571	}
	572
	573	static void __exit empress_unregister(void)
	574	{
	575	saa7134_ts_unregister(&empress_ops);
	576	}
	577
	578	module_init(empress_register);
	579	module_exit(empress_unregister);
	580
	581	/* ----------------------------------------------------------- */
	582	/*
	583	* Local variables:
	584	* c-basic-offset: 8
	585	* End:
	586	*/