[mirror_ubuntu-bionic-kernel.git] / drivers / media / video / cx18 / cx18-controls.c

/*
 *  cx18 ioctl control functions
 *
 *  Derived from ivtv-controls.c
 *
 *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA
 *  02111-1307  USA
 */

#include "cx18-driver.h"
#include "cx18-av-core.h"
#include "cx18-cards.h"
#include "cx18-ioctl.h"
#include "cx18-audio.h"
#include "cx18-i2c.h"
#include "cx18-mailbox.h"
#include "cx18-controls.h"

/* 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_BALANCE,
	V4L2_CID_AUDIO_BASS,
	V4L2_CID_AUDIO_TREBLE,
	V4L2_CID_AUDIO_MUTE,
	V4L2_CID_AUDIO_LOUDNESS,
	0
};

static const u32 *ctrl_classes[] = {
	user_ctrls,
	cx2341x_mpeg_ctrls,
	NULL
};

int cx18_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl)
{
	struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
	const char *name;

	qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
	if (qctrl->id == 0)
		return -EINVAL;

	switch (qctrl->id) {
	/* Standard V4L2 controls */
	case V4L2_CID_BRIGHTNESS:
	case V4L2_CID_HUE:
	case V4L2_CID_SATURATION:
	case V4L2_CID_CONTRAST:
		if (v4l2_subdev_call(cx->sd_av, core, queryctrl, qctrl))
			qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
		return 0;

	case V4L2_CID_AUDIO_VOLUME:
	case V4L2_CID_AUDIO_MUTE:
	case V4L2_CID_AUDIO_BALANCE:
	case V4L2_CID_AUDIO_BASS:
	case V4L2_CID_AUDIO_TREBLE:
	case V4L2_CID_AUDIO_LOUDNESS:
		if (cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, VIDIOC_QUERYCTRL, qctrl))
			qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
		return 0;

	default:
		if (cx2341x_ctrl_query(&cx->params, qctrl))
			qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
		return 0;
	}
	strncpy(qctrl->name, name, sizeof(qctrl->name) - 1);
	qctrl->name[sizeof(qctrl->name) - 1] = 0;
	return 0;
}

int cx18_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu)
{
	struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
	struct v4l2_queryctrl qctrl;

	qctrl.id = qmenu->id;
	cx18_queryctrl(file, fh, &qctrl);
	return v4l2_ctrl_query_menu(qmenu, &qctrl,
			cx2341x_ctrl_get_menu(&cx->params, qmenu->id));
}

static int cx18_try_ctrl(struct file *file, void *fh,
					struct v4l2_ext_control *vctrl)
{
	struct v4l2_queryctrl qctrl;
	const char **menu_items = NULL;
	int err;

	qctrl.id = vctrl->id;
	err = cx18_queryctrl(file, fh, &qctrl);
	if (err)
		return err;
	if (qctrl.type == V4L2_CTRL_TYPE_MENU)
		menu_items = v4l2_ctrl_get_menu(qctrl.id);
	return v4l2_ctrl_check(vctrl, &qctrl, menu_items);
}

static int cx18_s_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
{
	switch (vctrl->id) {
		/* Standard V4L2 controls */
	case V4L2_CID_BRIGHTNESS:
	case V4L2_CID_HUE:
	case V4L2_CID_SATURATION:
	case V4L2_CID_CONTRAST:
		return v4l2_subdev_call(cx->sd_av, core, s_ctrl, vctrl);

	case V4L2_CID_AUDIO_VOLUME:
	case V4L2_CID_AUDIO_MUTE:
	case V4L2_CID_AUDIO_BALANCE:
	case V4L2_CID_AUDIO_BASS:
	case V4L2_CID_AUDIO_TREBLE:
	case V4L2_CID_AUDIO_LOUDNESS:
		return cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, VIDIOC_S_CTRL, vctrl);

	default:
		CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
		return -EINVAL;
	}
	return 0;
}

static int cx18_g_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
{
	switch (vctrl->id) {
		/* Standard V4L2 controls */
	case V4L2_CID_BRIGHTNESS:
	case V4L2_CID_HUE:
	case V4L2_CID_SATURATION:
	case V4L2_CID_CONTRAST:
		return v4l2_subdev_call(cx->sd_av, core, g_ctrl, vctrl);

	case V4L2_CID_AUDIO_VOLUME:
	case V4L2_CID_AUDIO_MUTE:
	case V4L2_CID_AUDIO_BALANCE:
	case V4L2_CID_AUDIO_BASS:
	case V4L2_CID_AUDIO_TREBLE:
	case V4L2_CID_AUDIO_LOUDNESS:
		return cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, VIDIOC_G_CTRL, vctrl);
	default:
		CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
		return -EINVAL;
	}
	return 0;
}

static int cx18_setup_vbi_fmt(struct cx18 *cx, enum v4l2_mpeg_stream_vbi_fmt fmt)
{
	if (!(cx->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE))
		return -EINVAL;
	if (atomic_read(&cx->ana_capturing) > 0)
		return -EBUSY;

	/* First try to allocate sliced VBI buffers if needed. */
	if (fmt && cx->vbi.sliced_mpeg_data[0] == NULL) {
		int i;

		for (i = 0; i < CX18_VBI_FRAMES; i++) {
			cx->vbi.sliced_mpeg_data[i] =
			       kmalloc(CX18_SLICED_MPEG_DATA_BUFSZ, GFP_KERNEL);
			if (cx->vbi.sliced_mpeg_data[i] == NULL) {
				while (--i >= 0) {
					kfree(cx->vbi.sliced_mpeg_data[i]);
					cx->vbi.sliced_mpeg_data[i] = NULL;
				}
				return -ENOMEM;
			}
		}
	}

	cx->vbi.insert_mpeg = fmt;

	if (cx->vbi.insert_mpeg == 0)
		return 0;
	/* Need sliced data for mpeg insertion */
	if (cx18_get_service_set(cx->vbi.sliced_in) == 0) {
		if (cx->is_60hz)
			cx->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
		else
			cx->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
		cx18_expand_service_set(cx->vbi.sliced_in, cx->is_50hz);
	}
	return 0;
}

int cx18_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
{
	struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
	struct v4l2_control ctrl;

	if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
		int i;
		int err = 0;

		for (i = 0; i < c->count; i++) {
			ctrl.id = c->controls[i].id;
			ctrl.value = c->controls[i].value;
			err = cx18_g_ctrl(cx, &ctrl);
			c->controls[i].value = ctrl.value;
			if (err) {
				c->error_idx = i;
				break;
			}
		}
		return err;
	}
	if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
		return cx2341x_ext_ctrls(&cx->params, 0, c, VIDIOC_G_EXT_CTRLS);
	return -EINVAL;
}

int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
{
	struct cx18_open_id *id = fh;
	struct cx18 *cx = id->cx;
	int ret;
	struct v4l2_control ctrl;

	ret = v4l2_prio_check(&cx->prio, &id->prio);
	if (ret)
		return ret;

	if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
		int i;
		int err = 0;

		for (i = 0; i < c->count; i++) {
			ctrl.id = c->controls[i].id;
			ctrl.value = c->controls[i].value;
			err = cx18_s_ctrl(cx, &ctrl);
			c->controls[i].value = ctrl.value;
			if (err) {
				c->error_idx = i;
				break;
			}
		}
		return err;
	}
	if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
		struct cx18_api_func_private priv;
		struct cx2341x_mpeg_params p = cx->params;
		int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->ana_capturing),
						c, VIDIOC_S_EXT_CTRLS);

		if (err)
			return err;

		if (p.video_encoding != cx->params.video_encoding) {
			int is_mpeg1 = p.video_encoding ==
						V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
			struct v4l2_format fmt;

			/* fix videodecoder resolution */
			fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
			fmt.fmt.pix.width = cx->params.width
						/ (is_mpeg1 ? 2 : 1);
			fmt.fmt.pix.height = cx->params.height;
			v4l2_subdev_call(cx->sd_av, video, s_fmt, &fmt);
		}
		priv.cx = cx;
		priv.s = &cx->streams[id->type];
		err = cx2341x_update(&priv, cx18_api_func, &cx->params, &p);
		if (!err && cx->params.stream_vbi_fmt != p.stream_vbi_fmt)
			err = cx18_setup_vbi_fmt(cx, p.stream_vbi_fmt);
		cx->params = p;
		cx->dualwatch_stereo_mode = p.audio_properties & 0x0300;
		cx18_audio_set_audio_clock_freq(cx, p.audio_properties & 0x03);
		return err;
	}
	return -EINVAL;
}

int cx18_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
{
	struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;

	if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
		int i;
		int err = 0;

		for (i = 0; i < c->count; i++) {
			err = cx18_try_ctrl(file, fh, &c->controls[i]);
			if (err) {
				c->error_idx = i;
				break;
			}
		}
		return err;
	}
	if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
		return cx2341x_ext_ctrls(&cx->params,
						atomic_read(&cx->ana_capturing),
						c, VIDIOC_TRY_EXT_CTRLS);
	return -EINVAL;
}
Commit	Line	Data
1c1e45d1 HV	1	/*
	2	* cx18 ioctl control functions
	3	*
	4	* Derived from ivtv-controls.c
	5	*
	6	* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
	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	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	21	* 02111-1307 USA
	22	*/
	23
	24	#include "cx18-driver.h"
	25	#include "cx18-av-core.h"
	26	#include "cx18-cards.h"
	27	#include "cx18-ioctl.h"
	28	#include "cx18-audio.h"
	29	#include "cx18-i2c.h"
	30	#include "cx18-mailbox.h"
	31	#include "cx18-controls.h"
	32
2ba58894	33	/* Must be sorted from low to high control ID! */
1c1e45d1 HV	34	static const u32 user_ctrls[] = {
	35	V4L2_CID_USER_CLASS,
	36	V4L2_CID_BRIGHTNESS,
	37	V4L2_CID_CONTRAST,
	38	V4L2_CID_SATURATION,
	39	V4L2_CID_HUE,
	40	V4L2_CID_AUDIO_VOLUME,
	41	V4L2_CID_AUDIO_BALANCE,
	42	V4L2_CID_AUDIO_BASS,
	43	V4L2_CID_AUDIO_TREBLE,
	44	V4L2_CID_AUDIO_MUTE,
	45	V4L2_CID_AUDIO_LOUDNESS,
	46	0
	47	};
	48
	49	static const u32 *ctrl_classes[] = {
	50	user_ctrls,
	51	cx2341x_mpeg_ctrls,
	52	NULL
	53	};
	54
3b6fe58f	55	int cx18_queryctrl(struct file file, void fh, struct v4l2_queryctrl *qctrl)
1c1e45d1	56	{
3b6fe58f	57	struct cx18 cx = ((struct cx18_open_id )fh)->cx;
1c1e45d1 HV	58	const char *name;
1c1e45d1 HV	59
1c1e45d1 HV	60	qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
	61	if (qctrl->id == 0)
	62	return -EINVAL;
	63
	64	switch (qctrl->id) {
	65	/* Standard V4L2 controls */
	66	case V4L2_CID_BRIGHTNESS:
	67	case V4L2_CID_HUE:
	68	case V4L2_CID_SATURATION:
	69	case V4L2_CID_CONTRAST:
fa3e7036	70	if (v4l2_subdev_call(cx->sd_av, core, queryctrl, qctrl))
1c1e45d1 HV	71	qctrl->flags \|= V4L2_CTRL_FLAG_DISABLED;
	72	return 0;
	73
	74	case V4L2_CID_AUDIO_VOLUME:
	75	case V4L2_CID_AUDIO_MUTE:
	76	case V4L2_CID_AUDIO_BALANCE:
	77	case V4L2_CID_AUDIO_BASS:
	78	case V4L2_CID_AUDIO_TREBLE:
	79	case V4L2_CID_AUDIO_LOUDNESS:
	80	if (cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, VIDIOC_QUERYCTRL, qctrl))
	81	qctrl->flags \|= V4L2_CTRL_FLAG_DISABLED;
	82	return 0;
	83
	84	default:
	85	if (cx2341x_ctrl_query(&cx->params, qctrl))
	86	qctrl->flags \|= V4L2_CTRL_FLAG_DISABLED;
	87	return 0;
	88	}
	89	strncpy(qctrl->name, name, sizeof(qctrl->name) - 1);
	90	qctrl->name[sizeof(qctrl->name) - 1] = 0;
	91	return 0;
	92	}
	93
3b6fe58f	94	int cx18_querymenu(struct file file, void fh, struct v4l2_querymenu *qmenu)
1c1e45d1	95	{
e0e31cdb	96	struct cx18 cx = ((struct cx18_open_id )fh)->cx;
1c1e45d1 HV	97	struct v4l2_queryctrl qctrl;
	98
	99	qctrl.id = qmenu->id;
3b6fe58f	100	cx18_queryctrl(file, fh, &qctrl);
e0e31cdb HV	101	return v4l2_ctrl_query_menu(qmenu, &qctrl,
e0e31cdb HV	102	cx2341x_ctrl_get_menu(&cx->params, qmenu->id));
1c1e45d1 HV	103	}
1c1e45d1 HV	104
adb65bc7 HV	105	static int cx18_try_ctrl(struct file file, void fh,
adb65bc7 HV	106	struct v4l2_ext_control *vctrl)
1c1e45d1	107	{
adb65bc7 HV	108	struct v4l2_queryctrl qctrl;
	109	const char **menu_items = NULL;
	110	int err;
1c1e45d1	111
adb65bc7 HV	112	qctrl.id = vctrl->id;
	113	err = cx18_queryctrl(file, fh, &qctrl);
	114	if (err)
	115	return err;
	116	if (qctrl.type == V4L2_CTRL_TYPE_MENU)
	117	menu_items = v4l2_ctrl_get_menu(qctrl.id);
	118	return v4l2_ctrl_check(vctrl, &qctrl, menu_items);
	119	}
3b6fe58f	120
adb65bc7 HV	121	static int cx18_s_ctrl(struct cx18 cx, struct v4l2_control vctrl)
adb65bc7 HV	122	{
1c1e45d1 HV	123	switch (vctrl->id) {
	124	/* Standard V4L2 controls */
	125	case V4L2_CID_BRIGHTNESS:
	126	case V4L2_CID_HUE:
	127	case V4L2_CID_SATURATION:
	128	case V4L2_CID_CONTRAST:
fa3e7036	129	return v4l2_subdev_call(cx->sd_av, core, s_ctrl, vctrl);
1c1e45d1 HV	130
	131	case V4L2_CID_AUDIO_VOLUME:
	132	case V4L2_CID_AUDIO_MUTE:
	133	case V4L2_CID_AUDIO_BALANCE:
	134	case V4L2_CID_AUDIO_BASS:
	135	case V4L2_CID_AUDIO_TREBLE:
	136	case V4L2_CID_AUDIO_LOUDNESS:
	137	return cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, VIDIOC_S_CTRL, vctrl);
	138
	139	default:
37f89f95	140	CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
1c1e45d1 HV	141	return -EINVAL;
	142	}
	143	return 0;
	144	}
	145
adb65bc7	146	static int cx18_g_ctrl(struct cx18 cx, struct v4l2_control vctrl)
1c1e45d1	147	{
1c1e45d1 HV	148	switch (vctrl->id) {
	149	/* Standard V4L2 controls */
	150	case V4L2_CID_BRIGHTNESS:
	151	case V4L2_CID_HUE:
	152	case V4L2_CID_SATURATION:
	153	case V4L2_CID_CONTRAST:
fa3e7036	154	return v4l2_subdev_call(cx->sd_av, core, g_ctrl, vctrl);
1c1e45d1 HV	155
	156	case V4L2_CID_AUDIO_VOLUME:
	157	case V4L2_CID_AUDIO_MUTE:
	158	case V4L2_CID_AUDIO_BALANCE:
	159	case V4L2_CID_AUDIO_BASS:
	160	case V4L2_CID_AUDIO_TREBLE:
	161	case V4L2_CID_AUDIO_LOUDNESS:
	162	return cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, VIDIOC_G_CTRL, vctrl);
	163	default:
37f89f95	164	CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
1c1e45d1 HV	165	return -EINVAL;
	166	}
	167	return 0;
	168	}
	169
	170	static int cx18_setup_vbi_fmt(struct cx18 *cx, enum v4l2_mpeg_stream_vbi_fmt fmt)
	171	{
	172	if (!(cx->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE))
	173	return -EINVAL;
31554ae5	174	if (atomic_read(&cx->ana_capturing) > 0)
1c1e45d1 HV	175	return -EBUSY;
	176
	177	/* First try to allocate sliced VBI buffers if needed. */
	178	if (fmt && cx->vbi.sliced_mpeg_data[0] == NULL) {
	179	int i;
	180
	181	for (i = 0; i < CX18_VBI_FRAMES; i++) {
302df970 AW	182	cx->vbi.sliced_mpeg_data[i] =
302df970 AW	183	kmalloc(CX18_SLICED_MPEG_DATA_BUFSZ, GFP_KERNEL);
1c1e45d1 HV	184	if (cx->vbi.sliced_mpeg_data[i] == NULL) {
	185	while (--i >= 0) {
	186	kfree(cx->vbi.sliced_mpeg_data[i]);
	187	cx->vbi.sliced_mpeg_data[i] = NULL;
	188	}
	189	return -ENOMEM;
	190	}
	191	}
	192	}
	193
	194	cx->vbi.insert_mpeg = fmt;
	195
	196	if (cx->vbi.insert_mpeg == 0)
	197	return 0;
	198	/* Need sliced data for mpeg insertion */
aed6abd6	199	if (cx18_get_service_set(cx->vbi.sliced_in) == 0) {
1c1e45d1 HV	200	if (cx->is_60hz)
	201	cx->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
	202	else
	203	cx->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
aed6abd6	204	cx18_expand_service_set(cx->vbi.sliced_in, cx->is_50hz);
1c1e45d1 HV	205	}
	206	return 0;
	207	}
	208
3b6fe58f	209	int cx18_g_ext_ctrls(struct file file, void fh, struct v4l2_ext_controls *c)
1c1e45d1	210	{
3b6fe58f	211	struct cx18 cx = ((struct cx18_open_id )fh)->cx;
1c1e45d1 HV	212	struct v4l2_control ctrl;
1c1e45d1 HV	213
3b6fe58f AW	214	if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
	215	int i;
	216	int err = 0;
	217
	218	for (i = 0; i < c->count; i++) {
	219	ctrl.id = c->controls[i].id;
	220	ctrl.value = c->controls[i].value;
adb65bc7	221	err = cx18_g_ctrl(cx, &ctrl);
3b6fe58f AW	222	c->controls[i].value = ctrl.value;
	223	if (err) {
	224	c->error_idx = i;
	225	break;
1c1e45d1	226	}
1c1e45d1	227	}
3b6fe58f AW	228	return err;
3b6fe58f AW	229	}
3b6fe58f AW	230	if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
	231	return cx2341x_ext_ctrls(&cx->params, 0, c, VIDIOC_G_EXT_CTRLS);
	232	return -EINVAL;
	233	}
1c1e45d1	234
3b6fe58f AW	235	int cx18_s_ext_ctrls(struct file file, void fh, struct v4l2_ext_controls *c)
	236	{
	237	struct cx18_open_id *id = fh;
	238	struct cx18 *cx = id->cx;
	239	int ret;
	240	struct v4l2_control ctrl;
1c1e45d1	241
3b6fe58f AW	242	ret = v4l2_prio_check(&cx->prio, &id->prio);
	243	if (ret)
	244	return ret;
1c1e45d1	245
3b6fe58f AW	246	if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
	247	int i;
	248	int err = 0;
	249
	250	for (i = 0; i < c->count; i++) {
	251	ctrl.id = c->controls[i].id;
	252	ctrl.value = c->controls[i].value;
adb65bc7	253	err = cx18_s_ctrl(cx, &ctrl);
3b6fe58f AW	254	c->controls[i].value = ctrl.value;
	255	if (err) {
	256	c->error_idx = i;
	257	break;
1c1e45d1	258	}
1c1e45d1	259	}
3b6fe58f	260	return err;
1c1e45d1	261	}
3b6fe58f	262	if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
50b86bac	263	struct cx18_api_func_private priv;
3b6fe58f AW	264	struct cx2341x_mpeg_params p = cx->params;
	265	int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->ana_capturing),
	266	c, VIDIOC_S_EXT_CTRLS);
1c1e45d1	267
3b6fe58f	268	if (err)
1c1e45d1	269	return err;
1c1e45d1	270
3b6fe58f AW	271	if (p.video_encoding != cx->params.video_encoding) {
	272	int is_mpeg1 = p.video_encoding ==
	273	V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
	274	struct v4l2_format fmt;
	275
	276	/* fix videodecoder resolution */
	277	fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	278	fmt.fmt.pix.width = cx->params.width
	279	/ (is_mpeg1 ? 2 : 1);
	280	fmt.fmt.pix.height = cx->params.height;
fa3e7036	281	v4l2_subdev_call(cx->sd_av, video, s_fmt, &fmt);
3b6fe58f	282	}
50b86bac AW	283	priv.cx = cx;
	284	priv.s = &cx->streams[id->type];
	285	err = cx2341x_update(&priv, cx18_api_func, &cx->params, &p);
3b6fe58f AW	286	if (!err && cx->params.stream_vbi_fmt != p.stream_vbi_fmt)
	287	err = cx18_setup_vbi_fmt(cx, p.stream_vbi_fmt);
	288	cx->params = p;
	289	cx->dualwatch_stereo_mode = p.audio_properties & 0x0300;
	290	cx18_audio_set_audio_clock_freq(cx, p.audio_properties & 0x03);
	291	return err;
1c1e45d1	292	}
3b6fe58f AW	293	return -EINVAL;
3b6fe58f AW	294	}
1c1e45d1	295
3b6fe58f AW	296	int cx18_try_ext_ctrls(struct file file, void fh, struct v4l2_ext_controls *c)
	297	{
	298	struct cx18 cx = ((struct cx18_open_id )fh)->cx;
	299
adb65bc7 HV	300	if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
	301	int i;
	302	int err = 0;
	303
	304	for (i = 0; i < c->count; i++) {
	305	err = cx18_try_ctrl(file, fh, &c->controls[i]);
	306	if (err) {
	307	c->error_idx = i;
	308	break;
	309	}
	310	}
	311	return err;
	312	}
3b6fe58f AW	313	if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
	314	return cx2341x_ext_ctrls(&cx->params,
	315	atomic_read(&cx->ana_capturing),
	316	c, VIDIOC_TRY_EXT_CTRLS);
	317	return -EINVAL;
1c1e45d1	318	}