[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / cx25821 / cx25821-video7.c

/*
 *  Driver for the Conexant CX25821 PCIe bridge
 *
 *  Copyright (C) 2009 Conexant Systems Inc.
 *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
 *  Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
 *
 *  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 "cx25821-video.h"

static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
{
	struct cx25821_buffer *buf =
	    container_of(vb, struct cx25821_buffer, vb);
	struct cx25821_buffer *prev;
	struct cx25821_fh *fh = vq->priv_data;
	struct cx25821_dev *dev = fh->dev;
	struct cx25821_dmaqueue *q = &dev->vidq[SRAM_CH07];

	/* add jump to stopper */
	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
	buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
	buf->risc.jmp[2] = cpu_to_le32(0);	/* bits 63-32 */

	dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
	if (!list_empty(&q->queued)) {
		list_add_tail(&buf->vb.queue, &q->queued);
		buf->vb.state = VIDEOBUF_QUEUED;
		dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
			buf->vb.i);

	} else if (list_empty(&q->active)) {
		list_add_tail(&buf->vb.queue, &q->active);
		cx25821_start_video_dma(dev, q, buf,
					&dev->sram_channels[SRAM_CH07]);
		buf->vb.state = VIDEOBUF_ACTIVE;
		buf->count = q->count++;
		mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
		dprintk(2,
			"[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n",
			buf, buf->vb.i, buf->count, q->count);
	} else {
		prev =
		    list_entry(q->active.prev, struct cx25821_buffer, vb.queue);
		if (prev->vb.width == buf->vb.width
		    && prev->vb.height == buf->vb.height
		    && prev->fmt == buf->fmt) {
			list_add_tail(&buf->vb.queue, &q->active);
			buf->vb.state = VIDEOBUF_ACTIVE;
			buf->count = q->count++;
			prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);

			/* 64 bit bits 63-32 */
			prev->risc.jmp[2] = cpu_to_le32(0);
			dprintk(2,
				"[%p/%d] buffer_queue - append to active, buf->count=%d\n",
				buf, buf->vb.i, buf->count);

		} else {
			list_add_tail(&buf->vb.queue, &q->queued);
			buf->vb.state = VIDEOBUF_QUEUED;
			dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
				buf->vb.i);
		}
	}

	if (list_empty(&q->active)) {
		dprintk(2, "active queue empty!\n");
	}
}

static struct videobuf_queue_ops cx25821_video_qops = {
	.buf_setup = cx25821_buffer_setup,
	.buf_prepare = cx25821_buffer_prepare,
	.buf_queue = buffer_queue,
	.buf_release = cx25821_buffer_release,
};

static int video_open(struct file *file)
{
	struct video_device *vdev = video_devdata(file);
	struct cx25821_dev *dev = video_drvdata(file);
	struct cx25821_fh *fh;
	enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	u32 pix_format;

	printk("open dev=%s type=%s\n", video_device_node_name(vdev),
		v4l2_type_names[type]);

	/* allocate + initialize per filehandle data */
	fh = kzalloc(sizeof(*fh), GFP_KERNEL);
	if (NULL == fh)
		return -ENOMEM;

	lock_kernel();

	file->private_data = fh;
	fh->dev = dev;
	fh->type = type;
	fh->width = 720;

	if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
		fh->height = 576;
	else
		fh->height = 480;

	dev->channel_opened = SRAM_CH07;
	pix_format =
	    (dev->pixel_formats[dev->channel_opened] ==
	     PIXEL_FRMT_411) ? V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV;
	fh->fmt = format_by_fourcc(pix_format);

	v4l2_prio_open(&dev->prio, &fh->prio);

	videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
			       &dev->pci->dev, &dev->slock,
			       V4L2_BUF_TYPE_VIDEO_CAPTURE,
			       V4L2_FIELD_INTERLACED,
			       sizeof(struct cx25821_buffer), fh);

	dprintk(1, "post videobuf_queue_init()\n");
	unlock_kernel();

	return 0;
}

static ssize_t video_read(struct file *file, char __user * data, size_t count,
			  loff_t * ppos)
{
	struct cx25821_fh *fh = file->private_data;

	switch (fh->type) {
	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
		if (cx25821_res_locked(fh->dev, RESOURCE_VIDEO7))
			return -EBUSY;

		return videobuf_read_one(&fh->vidq, data, count, ppos,
					 file->f_flags & O_NONBLOCK);

	default:
		BUG();
		return 0;
	}
}

static unsigned int video_poll(struct file *file,
			       struct poll_table_struct *wait)
{
	struct cx25821_fh *fh = file->private_data;
	struct cx25821_buffer *buf;

	if (cx25821_res_check(fh, RESOURCE_VIDEO7)) {
		/* streaming capture */
		if (list_empty(&fh->vidq.stream))
			return POLLERR;
		buf = list_entry(fh->vidq.stream.next,
				 struct cx25821_buffer, vb.stream);
	} else {
		/* read() capture */
		buf = (struct cx25821_buffer *)fh->vidq.read_buf;
		if (NULL == buf)
			return POLLERR;
	}

	poll_wait(file, &buf->vb.done, wait);
	if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
		if (buf->vb.state == VIDEOBUF_DONE) {
			struct cx25821_dev *dev = fh->dev;

			if (dev && dev->use_cif_resolution[SRAM_CH07]) {
				u8 cam_id = *((char *)buf->vb.baddr + 3);
				memcpy((char *)buf->vb.baddr,
				       (char *)buf->vb.baddr + (fh->width * 2),
				       (fh->width * 2));
				*((char *)buf->vb.baddr + 3) = cam_id;
			}
		}

		return POLLIN | POLLRDNORM;
	}

	return 0;
}

static int video_release(struct file *file)
{
	struct cx25821_fh *fh = file->private_data;
	struct cx25821_dev *dev = fh->dev;

	//stop the risc engine and fifo
	cx_write(channel7->dma_ctl, 0);	/* FIFO and RISC disable */

	/* stop video capture */
	if (cx25821_res_check(fh, RESOURCE_VIDEO7)) {
		videobuf_queue_cancel(&fh->vidq);
		cx25821_res_free(dev, fh, RESOURCE_VIDEO7);
	}

	if (fh->vidq.read_buf) {
		cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
		kfree(fh->vidq.read_buf);
	}

	videobuf_mmap_free(&fh->vidq);

	v4l2_prio_close(&dev->prio, fh->prio);
	file->private_data = NULL;
	kfree(fh);

	return 0;
}

static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
{
	struct cx25821_fh *fh = priv;
	struct cx25821_dev *dev = fh->dev;

	if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) {
		return -EINVAL;
	}

	if (unlikely(i != fh->type)) {
		return -EINVAL;
	}

	if (unlikely(!cx25821_res_get(dev, fh, cx25821_get_resource(fh, RESOURCE_VIDEO7)))) {
		return -EBUSY;
	}

	return videobuf_streamon(get_queue(fh));
}

static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
{
	struct cx25821_fh *fh = priv;
	struct cx25821_dev *dev = fh->dev;
	int err, res;

	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
		return -EINVAL;
	if (i != fh->type)
		return -EINVAL;

	res = cx25821_get_resource(fh, RESOURCE_VIDEO7);
	err = videobuf_streamoff(get_queue(fh));
	if (err < 0)
		return err;
	cx25821_res_free(dev, fh, res);
	return 0;
}

static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
				struct v4l2_format *f)
{
	struct cx25821_fh *fh = priv;
	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
	int err;
	int pix_format = 0;

	if (fh) {
		err = v4l2_prio_check(&dev->prio, fh->prio);
		if (0 != err)
			return err;
	}

	dprintk(2, "%s()\n", __func__);
	err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);

	if (0 != err)
		return err;

	fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
	fh->vidq.field = f->fmt.pix.field;

	// check if width and height is valid based on set standard
	if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm)) {
		fh->width = f->fmt.pix.width;
	}

	if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm)) {
		fh->height = f->fmt.pix.height;
	}

	if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
		pix_format = PIXEL_FRMT_411;
	else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
		pix_format = PIXEL_FRMT_422;
	else
		return -EINVAL;

	cx25821_set_pixel_format(dev, SRAM_CH07, pix_format);

	// check if cif resolution
	if (fh->width == 320 || fh->width == 352) {
		dev->use_cif_resolution[SRAM_CH07] = 1;
	} else {
		dev->use_cif_resolution[SRAM_CH07] = 0;
	}
	dev->cif_width[SRAM_CH07] = fh->width;
	medusa_set_resolution(dev, fh->width, SRAM_CH07);

	dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, fh->width,
		fh->height, fh->vidq.field);
	cx25821_call_all(dev, video, s_fmt, f);

	return 0;
}

static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
{
	int ret_val = 0;
	struct cx25821_fh *fh = priv;
	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;

	ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);

	p->sequence = dev->vidq[SRAM_CH07].count;

	return ret_val;
}
static int vidioc_log_status(struct file *file, void *priv)
{
	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
	char name[32 + 2];

	struct sram_channel *sram_ch = &dev->sram_channels[SRAM_CH07];
	u32 tmp = 0;

	snprintf(name, sizeof(name), "%s/2", dev->name);
	printk(KERN_INFO "%s/2: ============  START LOG STATUS  ============\n",
	       dev->name);
	cx25821_call_all(dev, core, log_status);

	tmp = cx_read(sram_ch->dma_ctl);
	printk(KERN_INFO "Video input 7 is %s\n",
	       (tmp & 0x11) ? "streaming" : "stopped");
	printk(KERN_INFO "%s/2: =============  END LOG STATUS  =============\n",
	       dev->name);
	return 0;
}

static int vidioc_s_ctrl(struct file *file, void *priv,
			 struct v4l2_control *ctl)
{
	struct cx25821_fh *fh = priv;
	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
	int err;

	if (fh) {
		err = v4l2_prio_check(&dev->prio, fh->prio);
		if (0 != err)
			return err;
	}

	return cx25821_set_control(dev, ctl, SRAM_CH07);
}

// exported stuff
static const struct v4l2_file_operations video_fops = {
	.owner = THIS_MODULE,
	.open = video_open,
	.release = video_release,
	.read = video_read,
	.poll = video_poll,
	.mmap = cx25821_video_mmap,
	.ioctl = video_ioctl2,
};

static const struct v4l2_ioctl_ops video_ioctl_ops = {
	.vidioc_querycap = cx25821_vidioc_querycap,
	.vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
	.vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
	.vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
	.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
	.vidioc_reqbufs = cx25821_vidioc_reqbufs,
	.vidioc_querybuf = cx25821_vidioc_querybuf,
	.vidioc_qbuf = cx25821_vidioc_qbuf,
	.vidioc_dqbuf = vidioc_dqbuf,
#ifdef TUNER_FLAG
	.vidioc_s_std = cx25821_vidioc_s_std,
	.vidioc_querystd = cx25821_vidioc_querystd,
#endif
	.vidioc_cropcap = cx25821_vidioc_cropcap,
	.vidioc_s_crop = cx25821_vidioc_s_crop,
	.vidioc_g_crop = cx25821_vidioc_g_crop,
	.vidioc_enum_input = cx25821_vidioc_enum_input,
	.vidioc_g_input = cx25821_vidioc_g_input,
	.vidioc_s_input = cx25821_vidioc_s_input,
	.vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
	.vidioc_s_ctrl = vidioc_s_ctrl,
	.vidioc_queryctrl = cx25821_vidioc_queryctrl,
	.vidioc_streamon = vidioc_streamon,
	.vidioc_streamoff = vidioc_streamoff,
	.vidioc_log_status = vidioc_log_status,
	.vidioc_g_priority = cx25821_vidioc_g_priority,
	.vidioc_s_priority = cx25821_vidioc_s_priority,
#ifdef CONFIG_VIDEO_V4L1_COMPAT
	.vidiocgmbuf = cx25821_vidiocgmbuf,
#endif
#ifdef TUNER_FLAG
	.vidioc_g_tuner = cx25821_vidioc_g_tuner,
	.vidioc_s_tuner = cx25821_vidioc_s_tuner,
	.vidioc_g_frequency = cx25821_vidioc_g_frequency,
	.vidioc_s_frequency = cx25821_vidioc_s_frequency,
#endif
#ifdef CONFIG_VIDEO_ADV_DEBUG
	.vidioc_g_register = cx25821_vidioc_g_register,
	.vidioc_s_register = cx25821_vidioc_s_register,
#endif
};

struct video_device cx25821_video_template7 = {
	.name = "cx25821-video",
	.fops = &video_fops,
	.ioctl_ops = &video_ioctl_ops,
	.tvnorms = CX25821_NORMS,
	.current_norm = V4L2_STD_NTSC_M,
};
Commit	Line	Data
02b20b0b MCC	1	/*
	2	* Driver for the Conexant CX25821 PCIe bridge
	3	*
bb4c9a74	4	* Copyright (C) 2009 Conexant Systems Inc.
02b20b0b MCC	5	* Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
	6	* Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	*
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	22	*/
	23
	24	#include "cx25821-video.h"
	25
02b20b0b MCC	26	static void buffer_queue(struct videobuf_queue vq, struct videobuf_buffer vb)
02b20b0b MCC	27	{
1a9fc855 MCC	28	struct cx25821_buffer *buf =
	29	container_of(vb, struct cx25821_buffer, vb);
	30	struct cx25821_buffer *prev;
	31	struct cx25821_fh *fh = vq->priv_data;
	32	struct cx25821_dev *dev = fh->dev;
	33	struct cx25821_dmaqueue *q = &dev->vidq[SRAM_CH07];
	34
	35	/* add jump to stopper */
	36	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP \| RISC_IRQ1 \| RISC_CNT_INC);
	37	buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
	38	buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
02b20b0b	39
bb4c9a74	40	dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
1a9fc855 MCC	41	if (!list_empty(&q->queued)) {
	42	list_add_tail(&buf->vb.queue, &q->queued);
	43	buf->vb.state = VIDEOBUF_QUEUED;
	44	dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
	45	buf->vb.i);
	46
	47	} else if (list_empty(&q->active)) {
	48	list_add_tail(&buf->vb.queue, &q->active);
	49	cx25821_start_video_dma(dev, q, buf,
	50	&dev->sram_channels[SRAM_CH07]);
	51	buf->vb.state = VIDEOBUF_ACTIVE;
	52	buf->count = q->count++;
	53	mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
	54	dprintk(2,
	55	"[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n",
	56	buf, buf->vb.i, buf->count, q->count);
bb4c9a74	57	} else {
1a9fc855 MCC	58	prev =
	59	list_entry(q->active.prev, struct cx25821_buffer, vb.queue);
	60	if (prev->vb.width == buf->vb.width
	61	&& prev->vb.height == buf->vb.height
	62	&& prev->fmt == buf->fmt) {
	63	list_add_tail(&buf->vb.queue, &q->active);
	64	buf->vb.state = VIDEOBUF_ACTIVE;
	65	buf->count = q->count++;
	66	prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
	67
	68	/* 64 bit bits 63-32 */
	69	prev->risc.jmp[2] = cpu_to_le32(0);
	70	dprintk(2,
	71	"[%p/%d] buffer_queue - append to active, buf->count=%d\n",
	72	buf, buf->vb.i, buf->count);
	73
	74	} else {
	75	list_add_tail(&buf->vb.queue, &q->queued);
	76	buf->vb.state = VIDEOBUF_QUEUED;
	77	dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
	78	buf->vb.i);
	79	}
bb4c9a74	80	}
02b20b0b	81
1a9fc855 MCC	82	if (list_empty(&q->active)) {
	83	dprintk(2, "active queue empty!\n");
	84	}
02b20b0b MCC	85	}
02b20b0b MCC	86
02b20b0b	87	static struct videobuf_queue_ops cx25821_video_qops = {
f2466d63 MCC	88	.buf_setup = cx25821_buffer_setup,
f2466d63 MCC	89	.buf_prepare = cx25821_buffer_prepare,
1a9fc855	90	.buf_queue = buffer_queue,
f2466d63	91	.buf_release = cx25821_buffer_release,
02b20b0b MCC	92	};
02b20b0b MCC	93
02b20b0b MCC	94	static int video_open(struct file *file)
02b20b0b MCC	95	{
50462eb0	96	struct video_device *vdev = video_devdata(file);
63b0d5ad	97	struct cx25821_dev *dev = video_drvdata(file);
1a9fc855	98	struct cx25821_fh *fh;
63b0d5ad	99	enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1a9fc855 MCC	100	u32 pix_format;
1a9fc855 MCC	101
50462eb0 LP	102	printk("open dev=%s type=%s\n", video_device_node_name(vdev),
50462eb0 LP	103	v4l2_type_names[type]);
02b20b0b	104
1a9fc855 MCC	105	/* allocate + initialize per filehandle data */
1a9fc855 MCC	106	fh = kzalloc(sizeof(*fh), GFP_KERNEL);
63b0d5ad	107	if (NULL == fh)
1a9fc855	108	return -ENOMEM;
63b0d5ad LP	109
	110	lock_kernel();
	111
1a9fc855 MCC	112	file->private_data = fh;
	113	fh->dev = dev;
	114	fh->type = type;
	115	fh->width = 720;
	116
	117	if (dev->tvnorm & V4L2_STD_PAL_BG \|\| dev->tvnorm & V4L2_STD_PAL_DK)
	118	fh->height = 576;
	119	else
	120	fh->height = 480;
	121
	122	dev->channel_opened = SRAM_CH07;
	123	pix_format =
	124	(dev->pixel_formats[dev->channel_opened] ==
	125	PIXEL_FRMT_411) ? V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV;
	126	fh->fmt = format_by_fourcc(pix_format);
	127
	128	v4l2_prio_open(&dev->prio, &fh->prio);
	129
	130	videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
	131	&dev->pci->dev, &dev->slock,
	132	V4L2_BUF_TYPE_VIDEO_CAPTURE,
	133	V4L2_FIELD_INTERLACED,
	134	sizeof(struct cx25821_buffer), fh);
	135
	136	dprintk(1, "post videobuf_queue_init()\n");
bb4c9a74	137	unlock_kernel();
1a9fc855 MCC	138
1a9fc855 MCC	139	return 0;
02b20b0b MCC	140	}
02b20b0b MCC	141
1a9fc855 MCC	142	static ssize_t video_read(struct file file, char __user data, size_t count,
1a9fc855 MCC	143	loff_t * ppos)
02b20b0b	144	{
1a9fc855	145	struct cx25821_fh *fh = file->private_data;
02b20b0b	146
1a9fc855	147	switch (fh->type) {
bb4c9a74	148	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
f2466d63	149	if (cx25821_res_locked(fh->dev, RESOURCE_VIDEO7))
1a9fc855	150	return -EBUSY;
02b20b0b	151
1a9fc855 MCC	152	return videobuf_read_one(&fh->vidq, data, count, ppos,
1a9fc855 MCC	153	file->f_flags & O_NONBLOCK);
02b20b0b	154
bb4c9a74	155	default:
1a9fc855 MCC	156	BUG();
	157	return 0;
	158	}
02b20b0b MCC	159	}
02b20b0b MCC	160
1a9fc855 MCC	161	static unsigned int video_poll(struct file *file,
1a9fc855 MCC	162	struct poll_table_struct *wait)
02b20b0b	163	{
1a9fc855 MCC	164	struct cx25821_fh *fh = file->private_data;
	165	struct cx25821_buffer *buf;
	166
f2466d63	167	if (cx25821_res_check(fh, RESOURCE_VIDEO7)) {
1a9fc855 MCC	168	/* streaming capture */
	169	if (list_empty(&fh->vidq.stream))
	170	return POLLERR;
	171	buf = list_entry(fh->vidq.stream.next,
	172	struct cx25821_buffer, vb.stream);
	173	} else {
	174	/* read() capture */
	175	buf = (struct cx25821_buffer *)fh->vidq.read_buf;
	176	if (NULL == buf)
	177	return POLLERR;
bb4c9a74 MCC	178	}
bb4c9a74 MCC	179
1a9fc855 MCC	180	poll_wait(file, &buf->vb.done, wait);
	181	if (buf->vb.state == VIDEOBUF_DONE \|\| buf->vb.state == VIDEOBUF_ERROR) {
	182	if (buf->vb.state == VIDEOBUF_DONE) {
	183	struct cx25821_dev *dev = fh->dev;
	184
	185	if (dev && dev->use_cif_resolution[SRAM_CH07]) {
	186	u8 cam_id = ((char )buf->vb.baddr + 3);
	187	memcpy((char *)buf->vb.baddr,
	188	(char )buf->vb.baddr + (fh->width 2),
	189	(fh->width * 2));
	190	((char )buf->vb.baddr + 3) = cam_id;
	191	}
	192	}
	193
	194	return POLLIN \| POLLRDNORM;
	195	}
02b20b0b	196
1a9fc855	197	return 0;
02b20b0b MCC	198	}
02b20b0b MCC	199
02b20b0b MCC	200	static int video_release(struct file *file)
02b20b0b MCC	201	{
1a9fc855 MCC	202	struct cx25821_fh *fh = file->private_data;
1a9fc855 MCC	203	struct cx25821_dev *dev = fh->dev;
02b20b0b	204
1a9fc855 MCC	205	//stop the risc engine and fifo
1a9fc855 MCC	206	cx_write(channel7->dma_ctl, 0); /* FIFO and RISC disable */
02b20b0b	207
1a9fc855	208	/* stop video capture */
f2466d63	209	if (cx25821_res_check(fh, RESOURCE_VIDEO7)) {
1a9fc855	210	videobuf_queue_cancel(&fh->vidq);
f2466d63	211	cx25821_res_free(dev, fh, RESOURCE_VIDEO7);
1a9fc855	212	}
02b20b0b	213
1a9fc855	214	if (fh->vidq.read_buf) {
f2466d63	215	cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
1a9fc855 MCC	216	kfree(fh->vidq.read_buf);
1a9fc855 MCC	217	}
02b20b0b	218
1a9fc855	219	videobuf_mmap_free(&fh->vidq);
02b20b0b	220
ffb4877b	221	v4l2_prio_close(&dev->prio, fh->prio);
1a9fc855 MCC	222	file->private_data = NULL;
1a9fc855 MCC	223	kfree(fh);
02b20b0b	224
1a9fc855	225	return 0;
02b20b0b MCC	226	}
02b20b0b MCC	227
02b20b0b MCC	228	static int vidioc_streamon(struct file file, void priv, enum v4l2_buf_type i)
02b20b0b MCC	229	{
1a9fc855 MCC	230	struct cx25821_fh *fh = priv;
1a9fc855 MCC	231	struct cx25821_dev *dev = fh->dev;
02b20b0b	232
1a9fc855 MCC	233	if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) {
	234	return -EINVAL;
	235	}
02b20b0b	236
1a9fc855 MCC	237	if (unlikely(i != fh->type)) {
	238	return -EINVAL;
	239	}
02b20b0b	240
f2466d63	241	if (unlikely(!cx25821_res_get(dev, fh, cx25821_get_resource(fh, RESOURCE_VIDEO7)))) {
1a9fc855 MCC	242	return -EBUSY;
1a9fc855 MCC	243	}
02b20b0b	244
1a9fc855	245	return videobuf_streamon(get_queue(fh));
02b20b0b MCC	246	}
	247
	248	static int vidioc_streamoff(struct file file, void priv, enum v4l2_buf_type i)
	249	{
1a9fc855 MCC	250	struct cx25821_fh *fh = priv;
	251	struct cx25821_dev *dev = fh->dev;
	252	int err, res;
	253
	254	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
	255	return -EINVAL;
	256	if (i != fh->type)
	257	return -EINVAL;
	258
f2466d63	259	res = cx25821_get_resource(fh, RESOURCE_VIDEO7);
1a9fc855 MCC	260	err = videobuf_streamoff(get_queue(fh));
	261	if (err < 0)
	262	return err;
f2466d63	263	cx25821_res_free(dev, fh, res);
1a9fc855	264	return 0;
02b20b0b MCC	265	}
02b20b0b MCC	266
1a9fc855 MCC	267	static int vidioc_s_fmt_vid_cap(struct file file, void priv,
1a9fc855 MCC	268	struct v4l2_format *f)
02b20b0b	269	{
1a9fc855 MCC	270	struct cx25821_fh *fh = priv;
	271	struct cx25821_dev dev = ((struct cx25821_fh )priv)->dev;
	272	int err;
	273	int pix_format = 0;
	274
	275	if (fh) {
ffb4877b	276	err = v4l2_prio_check(&dev->prio, fh->prio);
1a9fc855 MCC	277	if (0 != err)
	278	return err;
	279	}
	280
	281	dprintk(2, "%s()\n", __func__);
f2466d63	282	err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
1a9fc855	283
bb4c9a74	284	if (0 != err)
1a9fc855 MCC	285	return err;
	286
	287	fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
	288	fh->vidq.field = f->fmt.pix.field;
	289
	290	// check if width and height is valid based on set standard
f2466d63	291	if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm)) {
1a9fc855 MCC	292	fh->width = f->fmt.pix.width;
	293	}
	294
f2466d63	295	if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm)) {
1a9fc855 MCC	296	fh->height = f->fmt.pix.height;
	297	}
	298
	299	if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
	300	pix_format = PIXEL_FRMT_411;
	301	else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
	302	pix_format = PIXEL_FRMT_422;
	303	else
	304	return -EINVAL;
	305
	306	cx25821_set_pixel_format(dev, SRAM_CH07, pix_format);
	307
	308	// check if cif resolution
	309	if (fh->width == 320 \|\| fh->width == 352) {
	310	dev->use_cif_resolution[SRAM_CH07] = 1;
	311	} else {
	312	dev->use_cif_resolution[SRAM_CH07] = 0;
	313	}
	314	dev->cif_width[SRAM_CH07] = fh->width;
	315	medusa_set_resolution(dev, fh->width, SRAM_CH07);
	316
	317	dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, fh->width,
	318	fh->height, fh->vidq.field);
	319	cx25821_call_all(dev, video, s_fmt, f);
	320
	321	return 0;
02b20b0b MCC	322	}
	323
	324	static int vidioc_dqbuf(struct file file, void priv, struct v4l2_buffer *p)
	325	{
1a9fc855 MCC	326	int ret_val = 0;
	327	struct cx25821_fh *fh = priv;
	328	struct cx25821_dev dev = ((struct cx25821_fh )priv)->dev;
02b20b0b	329
1a9fc855	330	ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
02b20b0b	331
1a9fc855	332	p->sequence = dev->vidq[SRAM_CH07].count;
02b20b0b	333
1a9fc855	334	return ret_val;
02b20b0b	335	}
1a9fc855	336	static int vidioc_log_status(struct file file, void priv)
02b20b0b	337	{
1a9fc855 MCC	338	struct cx25821_dev dev = ((struct cx25821_fh )priv)->dev;
1a9fc855 MCC	339	char name[32 + 2];
02b20b0b	340
1a9fc855 MCC	341	struct sram_channel *sram_ch = &dev->sram_channels[SRAM_CH07];
1a9fc855 MCC	342	u32 tmp = 0;
02b20b0b	343
1a9fc855 MCC	344	snprintf(name, sizeof(name), "%s/2", dev->name);
1a9fc855 MCC	345	printk(KERN_INFO "%s/2: ============ START LOG STATUS ============\n",
02b20b0b	346	dev->name);
1a9fc855	347	cx25821_call_all(dev, core, log_status);
bb4c9a74	348
1a9fc855 MCC	349	tmp = cx_read(sram_ch->dma_ctl);
	350	printk(KERN_INFO "Video input 7 is %s\n",
	351	(tmp & 0x11) ? "streaming" : "stopped");
	352	printk(KERN_INFO "%s/2: ============= END LOG STATUS =============\n",
02b20b0b	353	dev->name);
1a9fc855	354	return 0;
02b20b0b MCC	355	}
	356
	357	static int vidioc_s_ctrl(struct file file, void priv,
1a9fc855	358	struct v4l2_control *ctl)
02b20b0b MCC	359	{
02b20b0b MCC	360	struct cx25821_fh *fh = priv;
bb4c9a74 MCC	361	struct cx25821_dev dev = ((struct cx25821_fh )priv)->dev;
bb4c9a74 MCC	362	int err;
02b20b0b	363
bb4c9a74	364	if (fh) {
ffb4877b	365	err = v4l2_prio_check(&dev->prio, fh->prio);
02b20b0b MCC	366	if (0 != err)
	367	return err;
	368	}
	369
	370	return cx25821_set_control(dev, ctl, SRAM_CH07);
	371	}
	372
	373	// exported stuff
	374	static const struct v4l2_file_operations video_fops = {
1a9fc855 MCC	375	.owner = THIS_MODULE,
	376	.open = video_open,
	377	.release = video_release,
	378	.read = video_read,
	379	.poll = video_poll,
f2466d63	380	.mmap = cx25821_video_mmap,
1a9fc855	381	.ioctl = video_ioctl2,
02b20b0b MCC	382	};
	383
	384	static const struct v4l2_ioctl_ops video_ioctl_ops = {
f2466d63 MCC	385	.vidioc_querycap = cx25821_vidioc_querycap,
	386	.vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
	387	.vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
	388	.vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
1a9fc855	389	.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
f2466d63 MCC	390	.vidioc_reqbufs = cx25821_vidioc_reqbufs,
	391	.vidioc_querybuf = cx25821_vidioc_querybuf,
	392	.vidioc_qbuf = cx25821_vidioc_qbuf,
1a9fc855	393	.vidioc_dqbuf = vidioc_dqbuf,
02b20b0b	394	#ifdef TUNER_FLAG
f2466d63 MCC	395	.vidioc_s_std = cx25821_vidioc_s_std,
f2466d63 MCC	396	.vidioc_querystd = cx25821_vidioc_querystd,
02b20b0b	397	#endif
f2466d63 MCC	398	.vidioc_cropcap = cx25821_vidioc_cropcap,
	399	.vidioc_s_crop = cx25821_vidioc_s_crop,
	400	.vidioc_g_crop = cx25821_vidioc_g_crop,
	401	.vidioc_enum_input = cx25821_vidioc_enum_input,
	402	.vidioc_g_input = cx25821_vidioc_g_input,
	403	.vidioc_s_input = cx25821_vidioc_s_input,
	404	.vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
1a9fc855	405	.vidioc_s_ctrl = vidioc_s_ctrl,
f2466d63	406	.vidioc_queryctrl = cx25821_vidioc_queryctrl,
1a9fc855 MCC	407	.vidioc_streamon = vidioc_streamon,
	408	.vidioc_streamoff = vidioc_streamoff,
	409	.vidioc_log_status = vidioc_log_status,
f2466d63 MCC	410	.vidioc_g_priority = cx25821_vidioc_g_priority,
f2466d63 MCC	411	.vidioc_s_priority = cx25821_vidioc_s_priority,
02b20b0b	412	#ifdef CONFIG_VIDEO_V4L1_COMPAT
f2466d63	413	.vidiocgmbuf = cx25821_vidiocgmbuf,
02b20b0b MCC	414	#endif
02b20b0b MCC	415	#ifdef TUNER_FLAG
f2466d63 MCC	416	.vidioc_g_tuner = cx25821_vidioc_g_tuner,
	417	.vidioc_s_tuner = cx25821_vidioc_s_tuner,
	418	.vidioc_g_frequency = cx25821_vidioc_g_frequency,
	419	.vidioc_s_frequency = cx25821_vidioc_s_frequency,
02b20b0b MCC	420	#endif
02b20b0b MCC	421	#ifdef CONFIG_VIDEO_ADV_DEBUG
f2466d63 MCC	422	.vidioc_g_register = cx25821_vidioc_g_register,
f2466d63 MCC	423	.vidioc_s_register = cx25821_vidioc_s_register,
02b20b0b MCC	424	#endif
	425	};
	426
	427	struct video_device cx25821_video_template7 = {
1a9fc855 MCC	428	.name = "cx25821-video",
1a9fc855 MCC	429	.fops = &video_fops,
1a9fc855 MCC	430	.ioctl_ops = &video_ioctl_ops,
	431	.tvnorms = CX25821_NORMS,
	432	.current_norm = V4L2_STD_NTSC_M,
02b20b0b	433	};