[mirror_ubuntu-artful-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/slab.h>
#include <linux/delay.h>

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

#include <media/saa6752hs.h>
#include <media/v4l2-common.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)
{
	struct v4l2_ext_controls ctrls = { V4L2_CTRL_CLASS_MPEG, 0 };

	ts_reset_encoder(dev);
	saa7134_i2c_call_clients(dev, VIDIOC_S_EXT_CTRLS, &ctrls);
	dev->empress_started = 1;
	return 0;
}

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

static int ts_open(struct inode *inode, struct file *file)
{
	int minor = iminor(inode);
	struct saa7134_dev *dev;
	int err;

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

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

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

	dev->empress_users++;
	file->private_data = dev;
	err = 0;

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

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

	mutex_lock(&dev->empress_tsq.vb_lock);

	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));

	dev->empress_users--;

	mutex_unlock(&dev->empress_tsq.vb_lock);

	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 saa7134_i2c_call_saa6752(struct saa7134_dev *dev,
					      unsigned int cmd, void *arg)
{
	if (dev->mpeg_i2c_client == NULL)
		return -EINVAL;
	return dev->mpeg_i2c_client->driver->command(dev->mpeg_i2c_client,
								cmd, arg);
}

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_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 const struct 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,
	.llseek   = no_llseek,
};

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

static struct video_device saa7134_empress_template =
{
	.name          = "saa7134-empress",
	.type          = 0 /* FIXME */,
	.type2         = 0 /* FIXME */,
	.fops          = &ts_fops,
	.minor	       = -1,

	.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			= saa7134_g_ctrl,
	.vidioc_s_ctrl			= saa7134_s_ctrl,

	.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 (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->minor & 0x1f);

	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>
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	{
86b79d66 HV	66	struct v4l2_ext_controls ctrls = { V4L2_CTRL_CLASS_MPEG, 0 };
86b79d66 HV	67
1da177e4	68	ts_reset_encoder(dev);
86b79d66	69	saa7134_i2c_call_clients(dev, VIDIOC_S_EXT_CTRLS, &ctrls);
1da177e4	70	dev->empress_started = 1;
4ac97914	71	return 0;
1da177e4 LT	72	}
	73
	74	/* ------------------------------------------------------------------ */
	75
	76	static int ts_open(struct inode inode, struct file file)
	77	{
	78	int minor = iminor(inode);
6d28e989	79	struct saa7134_dev *dev;
1da177e4 LT	80	int err;
1da177e4 LT	81
6d28e989 TP	82	list_for_each_entry(dev, &saa7134_devlist, devlist)
	83	if (dev->empress_dev && dev->empress_dev->minor == minor)
	84	goto found;
	85	return -ENODEV;
	86	found:
1da177e4 LT	87
	88	dprintk("open minor=%d\n",minor);
	89	err = -EBUSY;
64f9477f	90	if (!mutex_trylock(&dev->empress_tsq.vb_lock))
1da177e4 LT	91	goto done;
	92	if (dev->empress_users)
	93	goto done_up;
	94
b784e526 RB	95	/* Unmute audio */
	96	saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
	97	saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
	98
1da177e4 LT	99	dev->empress_users++;
	100	file->private_data = dev;
	101	err = 0;
	102
	103	done_up:
64f9477f	104	mutex_unlock(&dev->empress_tsq.vb_lock);
1da177e4 LT	105	done:
	106	return err;
	107	}
	108
	109	static int ts_release(struct inode inode, struct file file)
	110	{
	111	struct saa7134_dev *dev = file->private_data;
	112
a1789873 AV	113	mutex_lock(&dev->empress_tsq.vb_lock);
a1789873 AV	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
913f5fc2 MS	125	dev->empress_users--;
913f5fc2 MS	126
a1789873 AV	127	mutex_unlock(&dev->empress_tsq.vb_lock);
a1789873 AV	128
1da177e4 LT	129	return 0;
	130	}
	131
	132	static ssize_t
	133	ts_read(struct file file, char __user data, size_t count, loff_t *ppos)
	134	{
	135	struct saa7134_dev *dev = file->private_data;
	136
	137	if (!dev->empress_started)
	138	ts_init_encoder(dev);
	139
	140	return videobuf_read_stream(&dev->empress_tsq,
	141	data, count, ppos, 0,
	142	file->f_flags & O_NONBLOCK);
	143	}
	144
	145	static unsigned int
	146	ts_poll(struct file file, struct poll_table_struct wait)
	147	{
	148	struct saa7134_dev *dev = file->private_data;
	149
	150	return videobuf_poll_stream(file, &dev->empress_tsq, wait);
	151	}
	152
	153
	154	static int
	155	ts_mmap(struct file file, struct vm_area_struct vma)
	156	{
	157	struct saa7134_dev *dev = file->private_data;
	158
	159	return videobuf_mmap_mapper(&dev->empress_tsq, vma);
	160	}
	161
	162	/*
	163	* This function is _not_ called directly, but from
	164	* video_generic_ioctl (and maybe others). userspace
	165	* copying is done already, arg is a kernel pointer.
	166	*/
2c10e8a8 MCC	167
	168	static int empress_querycap(struct file file, void priv,
	169	struct v4l2_capability *cap)
1da177e4	170	{
388748e6	171	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	172
	173	strcpy(cap->driver, "saa7134");
	174	strlcpy(cap->card, saa7134_boards[dev->board].name,
	175	sizeof(cap->card));
	176	sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
	177	cap->version = SAA7134_VERSION_CODE;
	178	cap->capabilities =
	179	V4L2_CAP_VIDEO_CAPTURE \|
	180	V4L2_CAP_READWRITE \|
	181	V4L2_CAP_STREAMING;
	182	return 0;
	183	}
1da177e4	184
2c10e8a8 MCC	185	static int empress_enum_input(struct file file, void priv,
	186	struct v4l2_input *i)
	187	{
	188	if (i->index != 0)
	189	return -EINVAL;
1da177e4	190
2c10e8a8 MCC	191	i->type = V4L2_INPUT_TYPE_CAMERA;
2c10e8a8 MCC	192	strcpy(i->name, "CCIR656");
1da177e4	193
2c10e8a8 MCC	194	return 0;
2c10e8a8 MCC	195	}
1da177e4	196
2c10e8a8 MCC	197	static int empress_g_input(struct file file, void priv, unsigned int *i)
	198	{
	199	*i = 0;
	200	return 0;
	201	}
1da177e4	202
2c10e8a8 MCC	203	static int empress_s_input(struct file file, void priv, unsigned int i)
	204	{
	205	if (i != 0)
	206	return -EINVAL;
1da177e4	207
2c10e8a8 MCC	208	return 0;
2c10e8a8 MCC	209	}
1da177e4	210
78b526a4	211	static int empress_enum_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	212	struct v4l2_fmtdesc *f)
	213	{
	214	if (f->index != 0)
	215	return -EINVAL;
1da177e4	216
2c10e8a8 MCC	217	strlcpy(f->description, "MPEG TS", sizeof(f->description));
2c10e8a8 MCC	218	f->pixelformat = V4L2_PIX_FMT_MPEG;
1da177e4	219
2c10e8a8 MCC	220	return 0;
2c10e8a8 MCC	221	}
1da177e4	222
78b526a4	223	static int empress_g_fmt_vid_cap(struct file file, void priv,
2c10e8a8 MCC	224	struct v4l2_format *f)
2c10e8a8 MCC	225	{
a14fe960	226	struct saa7134_dev *dev = file->private_data;
1da177e4	227
2c10e8a8	228	saa7134_i2c_call_clients(dev, VIDIOC_G_FMT, f);
1da177e4	229
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;
1da177e4	240
2c10e8a8	241	saa7134_i2c_call_clients(dev, VIDIOC_S_FMT, f);
1da177e4	242
2c10e8a8 MCC	243	f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
2c10e8a8 MCC	244	f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
1da177e4	245
2c10e8a8 MCC	246	return 0;
	247	}
	248
	249
	250	static int empress_reqbufs(struct file file, void priv,
	251	struct v4l2_requestbuffers *p)
	252	{
a14fe960	253	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	254
	255	return videobuf_reqbufs(&dev->empress_tsq, p);
	256	}
	257
	258	static int empress_querybuf(struct file file, void priv,
	259	struct v4l2_buffer *b)
	260	{
a14fe960	261	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	262
	263	return videobuf_querybuf(&dev->empress_tsq, b);
	264	}
	265
	266	static int empress_qbuf(struct file file, void priv, struct v4l2_buffer *b)
	267	{
a14fe960	268	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	269
	270	return videobuf_qbuf(&dev->empress_tsq, b);
	271	}
	272
	273	static int empress_dqbuf(struct file file, void priv, struct v4l2_buffer *b)
	274	{
a14fe960	275	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	276
	277	return videobuf_dqbuf(&dev->empress_tsq, b,
	278	file->f_flags & O_NONBLOCK);
	279	}
	280
	281	static int empress_streamon(struct file file, void priv,
	282	enum v4l2_buf_type type)
	283	{
a14fe960	284	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	285
	286	return videobuf_streamon(&dev->empress_tsq);
	287	}
	288
	289	static int empress_streamoff(struct file file, void priv,
	290	enum v4l2_buf_type type)
	291	{
a14fe960	292	struct saa7134_dev *dev = file->private_data;
2c10e8a8 MCC	293
	294	return videobuf_streamoff(&dev->empress_tsq);
	295	}
	296
8b53b39d HV	297	static int saa7134_i2c_call_saa6752(struct saa7134_dev *dev,
	298	unsigned int cmd, void *arg)
	299	{
	300	if (dev->mpeg_i2c_client == NULL)
	301	return -EINVAL;
	302	return dev->mpeg_i2c_client->driver->command(dev->mpeg_i2c_client,
	303	cmd, arg);
	304	}
	305
2c10e8a8 MCC	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
8b53b39d HV	336	static int empress_queryctrl(struct file file, void priv,
	337	struct v4l2_queryctrl *c)
	338	{
	339	static const u32 user_ctrls[] = {
	340	V4L2_CID_USER_CLASS,
	341	V4L2_CID_BRIGHTNESS,
	342	V4L2_CID_CONTRAST,
	343	V4L2_CID_SATURATION,
	344	V4L2_CID_HUE,
	345	V4L2_CID_AUDIO_VOLUME,
	346	V4L2_CID_AUDIO_MUTE,
	347	V4L2_CID_HFLIP,
	348	0
	349	};
	350
	351	static const u32 mpeg_ctrls[] = {
	352	V4L2_CID_MPEG_CLASS,
	353	V4L2_CID_MPEG_STREAM_TYPE,
	354	V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
	355	V4L2_CID_MPEG_AUDIO_ENCODING,
	356	V4L2_CID_MPEG_AUDIO_L2_BITRATE,
	357	V4L2_CID_MPEG_VIDEO_ENCODING,
	358	V4L2_CID_MPEG_VIDEO_ASPECT,
	359	V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
	360	V4L2_CID_MPEG_VIDEO_BITRATE,
	361	V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
	362	0
	363	};
	364	static const u32 *ctrl_classes[] = {
	365	user_ctrls,
	366	mpeg_ctrls,
	367	NULL
	368	};
	369	struct saa7134_dev *dev = file->private_data;
	370
	371	c->id = v4l2_ctrl_next(ctrl_classes, c->id);
	372	if (c->id == 0)
	373	return -EINVAL;
	374	if (c->id == V4L2_CID_USER_CLASS \|\| c->id == V4L2_CID_MPEG_CLASS)
	375	return v4l2_ctrl_query_fill_std(c);
	376	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
	377	return saa7134_queryctrl(file, priv, c);
	378	return saa7134_i2c_call_saa6752(dev, VIDIOC_QUERYCTRL, c);
	379	}
	380
	381	static int empress_querymenu(struct file file, void priv,
	382	struct v4l2_querymenu *c)
	383	{
	384	struct saa7134_dev *dev = file->private_data;
	385
	386	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
	387	return -EINVAL;
	388	return saa7134_i2c_call_saa6752(dev, VIDIOC_QUERYMENU, c);
1da177e4 LT	389	}
1da177e4 LT	390
fa027c2a	391	static const struct file_operations ts_fops =
1da177e4 LT	392	{
	393	.owner = THIS_MODULE,
	394	.open = ts_open,
	395	.release = ts_release,
	396	.read = ts_read,
	397	.poll = ts_poll,
	398	.mmap = ts_mmap,
2c10e8a8	399	.ioctl = video_ioctl2,
1da177e4 LT	400	.llseek = no_llseek,
	401	};
	402
	403	/* ----------------------------------------------------------- */
	404
	405	static struct video_device saa7134_empress_template =
	406	{
	407	.name = "saa7134-empress",
	408	.type = 0 /* FIXME */,
	409	.type2 = 0 /* FIXME */,
1da177e4 LT	410	.fops = &ts_fops,
1da177e4 LT	411	.minor = -1,
2c10e8a8 MCC	412
2c10e8a8 MCC	413	.vidioc_querycap = empress_querycap,
78b526a4 HV	414	.vidioc_enum_fmt_vid_cap = empress_enum_fmt_vid_cap,
	415	.vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap,
	416	.vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap,
2c10e8a8 MCC	417	.vidioc_reqbufs = empress_reqbufs,
	418	.vidioc_querybuf = empress_querybuf,
	419	.vidioc_qbuf = empress_qbuf,
	420	.vidioc_dqbuf = empress_dqbuf,
	421	.vidioc_streamon = empress_streamon,
	422	.vidioc_streamoff = empress_streamoff,
	423	.vidioc_s_ext_ctrls = empress_s_ext_ctrls,
	424	.vidioc_g_ext_ctrls = empress_g_ext_ctrls,
	425	.vidioc_enum_input = empress_enum_input,
	426	.vidioc_g_input = empress_g_input,
	427	.vidioc_s_input = empress_s_input,
	428
8b53b39d HV	429	.vidioc_queryctrl = empress_queryctrl,
8b53b39d HV	430	.vidioc_querymenu = empress_querymenu,
2c10e8a8 MCC	431	.vidioc_g_ctrl = saa7134_g_ctrl,
	432	.vidioc_s_ctrl = saa7134_s_ctrl,
	433
	434	.tvnorms = SAA7134_NORMS,
	435	.current_norm = V4L2_STD_PAL,
1da177e4 LT	436	};
1da177e4 LT	437
c4028958	438	static void empress_signal_update(struct work_struct *work)
1da177e4	439	{
c4028958 DH	440	struct saa7134_dev* dev =
c4028958 DH	441	container_of(work, struct saa7134_dev, empress_workqueue);
1da177e4 LT	442
	443	if (dev->nosignal) {
	444	dprintk("no video signal\n");
	445	ts_reset_encoder(dev);
	446	} else {
	447	dprintk("video signal acquired\n");
	448	if (dev->empress_users)
	449	ts_init_encoder(dev);
	450	}
	451	}
	452
	453	static void empress_signal_change(struct saa7134_dev *dev)
	454	{
	455	schedule_work(&dev->empress_workqueue);
	456	}
	457
	458
	459	static int empress_init(struct saa7134_dev *dev)
	460	{
	461	int err;
	462
5016381c	463	dprintk("%s: %s\n",dev->name,__func__);
1da177e4 LT	464	dev->empress_dev = video_device_alloc();
	465	if (NULL == dev->empress_dev)
	466	return -ENOMEM;
	467	*(dev->empress_dev) = saa7134_empress_template;
5e85e732	468	dev->empress_dev->parent = &dev->pci->dev;
1da177e4 LT	469	dev->empress_dev->release = video_device_release;
	470	snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name),
	471	"%s empress (%s)", dev->name,
	472	saa7134_boards[dev->board].name);
	473
c4028958	474	INIT_WORK(&dev->empress_workqueue, empress_signal_update);
1da177e4 LT	475
	476	err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER,
	477	empress_nr[dev->nr]);
	478	if (err < 0) {
	479	printk(KERN_INFO "%s: can't register video device\n",
	480	dev->name);
	481	video_device_release(dev->empress_dev);
	482	dev->empress_dev = NULL;
	483	return err;
	484	}
	485	printk(KERN_INFO "%s: registered device video%d [mpeg]\n",
	486	dev->name,dev->empress_dev->minor & 0x1f);
	487
0705135e GL	488	videobuf_queue_sg_init(&dev->empress_tsq, &saa7134_ts_qops,
0705135e GL	489	&dev->pci->dev, &dev->slock,
1da177e4 LT	490	V4L2_BUF_TYPE_VIDEO_CAPTURE,
	491	V4L2_FIELD_ALTERNATE,
	492	sizeof(struct saa7134_buf),
	493	dev);
	494
c4028958	495	empress_signal_update(&dev->empress_workqueue);
1da177e4 LT	496	return 0;
	497	}
	498
	499	static int empress_fini(struct saa7134_dev *dev)
	500	{
5016381c	501	dprintk("%s: %s\n",dev->name,__func__);
1da177e4 LT	502
	503	if (NULL == dev->empress_dev)
	504	return 0;
	505	flush_scheduled_work();
	506	video_unregister_device(dev->empress_dev);
	507	dev->empress_dev = NULL;
	508	return 0;
	509	}
	510
	511	static struct saa7134_mpeg_ops empress_ops = {
	512	.type = SAA7134_MPEG_EMPRESS,
	513	.init = empress_init,
	514	.fini = empress_fini,
	515	.signal_change = empress_signal_change,
	516	};
	517
	518	static int __init empress_register(void)
	519	{
	520	return saa7134_ts_register(&empress_ops);
	521	}
	522
	523	static void __exit empress_unregister(void)
	524	{
	525	saa7134_ts_unregister(&empress_ops);
	526	}
	527
	528	module_init(empress_register);
	529	module_exit(empress_unregister);
	530
	531	/* ----------------------------------------------------------- */
	532	/*
	533	* Local variables:
	534	* c-basic-offset: 8
	535	* End:
	536	*/