/*
* cx2341x - generic code for cx23415/6 based devices
*
* Copyright (C) 2006 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/videodev2.h>
#include <linux/i2c.h>
#include <media/tuner.h>
#include <media/cx2341x.h>
#include <media/v4l2-common.h>
MODULE_DESCRIPTION("cx23415/6 driver");
MODULE_AUTHOR("Hans Verkuil");
MODULE_LICENSE("GPL");
static int debug = 0;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
/* Map the control ID to the correct field in the cx2341x_mpeg_params
struct. Return -EINVAL if the ID is unknown, else return 0. */
static int cx2341x_get_ctrl(struct cx2341x_mpeg_params *params,
struct v4l2_ext_control *ctrl)
{
switch (ctrl->id) {
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
ctrl->value = params->audio_sampling_freq;
break;
case V4L2_CID_MPEG_AUDIO_ENCODING:
ctrl->value = params->audio_encoding;
break;
case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
ctrl->value = params->audio_l2_bitrate;
break;
case V4L2_CID_MPEG_AUDIO_MODE:
ctrl->value = params->audio_mode;
break;
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
ctrl->value = params->audio_mode_extension;
break;
case V4L2_CID_MPEG_AUDIO_EMPHASIS:
ctrl->value = params->audio_emphasis;
break;
case V4L2_CID_MPEG_AUDIO_CRC:
ctrl->value = params->audio_crc;
break;
case V4L2_CID_MPEG_VIDEO_ENCODING:
ctrl->value = params->video_encoding;
break;
case V4L2_CID_MPEG_VIDEO_ASPECT:
ctrl->value = params->video_aspect;
break;
case V4L2_CID_MPEG_VIDEO_B_FRAMES:
ctrl->value = params->video_b_frames;
break;
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
ctrl->value = params->video_gop_size;
break;
case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
ctrl->value = params->video_gop_closure;
break;
case V4L2_CID_MPEG_VIDEO_PULLDOWN:
ctrl->value = params->video_pulldown;
break;
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
ctrl->value = params->video_bitrate_mode;
break;
case V4L2_CID_MPEG_VIDEO_BITRATE:
ctrl->value = params->video_bitrate;
break;
case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
ctrl->value = params->video_bitrate_peak;
break;
case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION:
ctrl->value = params->video_temporal_decimation;
break;
case V4L2_CID_MPEG_STREAM_TYPE:
ctrl->value = params->stream_type;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
ctrl->value = params->video_spatial_filter_mode;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER:
ctrl->value = params->video_spatial_filter;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE:
ctrl->value = params->video_luma_spatial_filter_type;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE:
ctrl->value = params->video_chroma_spatial_filter_type;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE:
ctrl->value = params->video_temporal_filter_mode;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER:
ctrl->value = params->video_temporal_filter;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE:
ctrl->value = params->video_median_filter_type;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP:
ctrl->value = params->video_luma_median_filter_top;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM:
ctrl->value = params->video_luma_median_filter_bottom;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP:
ctrl->value = params->video_chroma_median_filter_top;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM:
ctrl->value = params->video_chroma_median_filter_bottom;
break;
default:
return -EINVAL;
}
return 0;
}
/* Map the control ID to the correct field in the cx2341x_mpeg_params
struct. Return -EINVAL if the ID is unknown, else return 0. */
static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params,
struct v4l2_ext_control *ctrl)
{
switch (ctrl->id) {
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
params->audio_sampling_freq = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_ENCODING:
params->audio_encoding = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
params->audio_l2_bitrate = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_MODE:
params->audio_mode = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
params->audio_mode_extension = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_EMPHASIS:
params->audio_emphasis = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_CRC:
params->audio_crc = ctrl->value;
break;
case V4L2_CID_MPEG_VIDEO_ASPECT:
params->video_aspect = ctrl->value;
break;
case V4L2_CID_MPEG_VIDEO_B_FRAMES: {
int b = ctrl->value + 1;
int gop = params->video_gop_size;
params->video_b_frames = ctrl->value;
params->video_gop_size = b * ((gop + b - 1) / b);
/* Max GOP size = 34 */
while (params->video_gop_size > 34)
params->video_gop_size -= b;
break;
}
case V4L2_CID_MPEG_VIDEO_GOP_SIZE: {
int b = params->video_b_frames + 1;
int gop = ctrl->value;
params->video_gop_size = b * ((gop + b - 1) / b);
/* Max GOP size = 34 */
while (params->video_gop_size > 34)
params->video_gop_size -= b;
ctrl->value = params->video_gop_size;
break;
}
case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
params->video_gop_closure = ctrl->value;
break;
case V4L2_CID_MPEG_VIDEO_PULLDOWN:
params->video_pulldown = ctrl->value;
break;
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
/* MPEG-1 only allows CBR */
if (params->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1 &&
ctrl->value != V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
return -EINVAL;
params->video_bitrate_mode = ctrl->value;
break;
case V4L2_CID_MPEG_VIDEO_BITRATE:
params->video_bitrate = ctrl->value;
break;
case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
params->video_bitrate_peak = ctrl->value;
break;
case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION:
params->video_temporal_decimation = ctrl->value;
break;
case V4L2_CID_MPEG_STREAM_TYPE:
params->stream_type = ctrl->value;
params->video_encoding =
(params->stream_type == V4L2_MPEG_STREAM_TYPE_MPEG1_SS ||
params->stream_type == V4L2_MPEG_STREAM_TYPE_MPEG1_VCD) ?
V4L2_MPEG_VIDEO_ENCODING_MPEG_1 : V4L2_MPEG_VIDEO_ENCODING_MPEG_2;
if (params->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1) {
/* MPEG-1 implies CBR */
params->video_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_CBR;
}
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
params->video_spatial_filter_mode = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER:
params->video_spatial_filter = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE:
params->video_luma_spatial_filter_type = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE:
params->video_chroma_spatial_filter_type = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE:
params->video_temporal_filter_mode = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER:
params->video_temporal_filter = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE:
params->video_median_filter_type = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP:
params->video_luma_median_filter_top = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM:
params->video_luma_median_filter_bottom = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP:
params->video_chroma_median_filter_top = ctrl->value;
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM:
params->video_chroma_median_filter_bottom = ctrl->value;
break;
default:
return -EINVAL;
}
return 0;
}
static int cx2341x_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def)
{
const char *name;
qctrl->flags = 0;
switch (qctrl->id) {
/* MPEG controls */
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
name = "Spatial Filter Mode";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER:
name = "Spatial Filter";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE:
name = "Spatial Luma Filter Type";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE:
name = "Spatial Chroma Filter Type";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE:
name = "Temporal Filter Mode";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER:
name = "Temporal Filter";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE:
name = "Median Filter Type";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP:
name = "Median Luma Filter Maximum";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM:
name = "Median Luma Filter Minimum";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP:
name = "Median Chroma Filter Maximum";
break;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM:
name = "Median Chroma Filter Minimum";
break;
default:
return v4l2_ctrl_query_fill(qctrl, min, max, step, def);
}
switch (qctrl->id) {
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE:
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE:
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE:
case V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE:
qctrl->type = V4L2_CTRL_TYPE_MENU;
min = 0;
step = 1;
break;
default:
qctrl->type = V4L2_CTRL_TYPE_INTEGER;
break;
}
switch (qctrl->id) {
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE:
case V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE:
qctrl->flags |= V4L2_CTRL_FLAG_UPDATE;
break;
}
qctrl->minimum = min;
qctrl->maximum = max;
qctrl->step = step;
qctrl->default_value = def;
qctrl->reserved[0] = qctrl->reserved[1] = 0;
snprintf(qctrl->name, sizeof(qctrl->name), name);
return 0;
}
int cx2341x_ctrl_query(struct cx2341x_mpeg_params *params, struct v4l2_queryctrl *qctrl)
{
int err;
switch (qctrl->id) {
case V4L2_CID_MPEG_AUDIO_ENCODING:
return v4l2_ctrl_query_fill(qctrl,
V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
V4L2_MPEG_AUDIO_ENCODING_LAYER_2, 1,
V4L2_MPEG_AUDIO_ENCODING_LAYER_2);
case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
return v4l2_ctrl_query_fill(qctrl,
V4L2_MPEG_AUDIO_L2_BITRATE_192K,
V4L2_MPEG_AUDIO_L2_BITRATE_384K, 1,
V4L2_MPEG_AUDIO_L2_BITRATE_224K);
case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
return -EINVAL;
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
err = v4l2_ctrl_query_fill_std(qctrl);
if (err == 0 && params->audio_mode != V4L2_MPEG_AUDIO_MODE_JOINT_STEREO)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return err;
case V4L2_CID_MPEG_VIDEO_ENCODING:
/* this setting is read-only for the cx2341x since the
V4L2_CID_MPEG_STREAM_TYPE really determines the
MPEG-1/2 setting */
err = v4l2_ctrl_query_fill_std(qctrl);
if (err == 0)
qctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
return err;
case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
err = v4l2_ctrl_query_fill_std(qctrl);
if (err == 0 && params->video_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return err;
/* CX23415/6 specific */
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
return cx2341x_ctrl_query_fill(qctrl,
V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_MANUAL,
V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_AUTO, 1,
V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_MANUAL);
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER:
cx2341x_ctrl_query_fill(qctrl, 0, 15, 1, 0);
qctrl->flags |= V4L2_CTRL_FLAG_SLIDER;
if (params->video_spatial_filter_mode == V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_AUTO)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE:
cx2341x_ctrl_query_fill(qctrl,
V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_OFF,
V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_SYM_NON_SEPARABLE, 1,
V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_OFF);
if (params->video_spatial_filter_mode == V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_AUTO)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE:
cx2341x_ctrl_query_fill(qctrl,
V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_OFF,
V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_1D_HOR, 1,
V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_OFF);
if (params->video_spatial_filter_mode == V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_AUTO)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE:
return cx2341x_ctrl_query_fill(qctrl,
V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_MANUAL,
V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_AUTO, 1,
V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_MANUAL);
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER:
cx2341x_ctrl_query_fill(qctrl, 0, 31, 1, 0);
qctrl->flags |= V4L2_CTRL_FLAG_SLIDER;
if (params->video_temporal_filter_mode == V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_AUTO)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
case V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE:
return cx2341x_ctrl_query_fill(qctrl,
V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF,
V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_DIAG, 1,
V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF);
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP:
cx2341x_ctrl_query_fill(qctrl, 0, 255, 1, 255);
qctrl->flags |= V4L2_CTRL_FLAG_SLIDER;
if (params->video_median_filter_type == V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM:
cx2341x_ctrl_query_fill(qctrl, 0, 255, 1, 0);
qctrl->flags |= V4L2_CTRL_FLAG_SLIDER;
if (params->video_median_filter_type == V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP:
cx2341x_ctrl_query_fill(qctrl, 0, 255, 1, 255);
qctrl->flags |= V4L2_CTRL_FLAG_SLIDER;
if (params->video_median_filter_type == V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM:
cx2341x_ctrl_query_fill(qctrl, 0, 255, 1, 0);
qctrl->flags |= V4L2_CTRL_FLAG_SLIDER;
if (params->video_median_filter_type == V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF)
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
default:
return v4l2_ctrl_query_fill_std(qctrl);
}
}
const char **cx2341x_ctrl_get_menu(u32 id)
{
static const char *mpeg_stream_type[] = {
"MPEG-2 Program Stream",
"",
"MPEG-1 System Stream",
"MPEG-2 DVD-compatible Stream",
"MPEG-1 VCD-compatible Stream",
"MPEG-2 SVCD-compatible Stream",
NULL
};
static const char *cx2341x_video_spatial_filter_mode_menu[] = {
"Manual",
"Auto",
NULL
};
static const char *cx2341x_video_luma_spatial_filter_type_menu[] = {
"Off",
"1D Horizontal",
"1D Vertical",
"2D H/V Separable",
"2D Symmetric non-separable",
NULL
};
static const char *cx2341x_video_chroma_spatial_filter_type_menu[] = {
"Off",
"1D Horizontal",
NULL
};
static const char *cx2341x_video_temporal_filter_mode_menu[] = {
"Manual",
"Auto",
NULL
};
static const char *cx2341x_video_median_filter_type_menu[] = {
"Off",
"Horizontal",
"Vertical",
"Horizontal/Vertical",
"Diagonal",
NULL
};
switch (id) {
case V4L2_CID_MPEG_STREAM_TYPE:
return mpeg_stream_type;
case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
return NULL;
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
return cx2341x_video_spatial_filter_mode_menu;
case V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE:
return cx2341x_video_luma_spatial_filter_type_menu;
case V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE:
return cx2341x_video_chroma_spatial_filter_type_menu;
case V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE:
return cx2341x_video_temporal_filter_mode_menu;
case V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE:
return cx2341x_video_median_filter_type_menu;
default:
return v4l2_ctrl_get_menu(id);
}
}
static void cx2341x_calc_audio_properties(struct cx2341x_mpeg_params *params)
{
params->audio_properties = (params->audio_sampling_freq << 0) |
((3 - params->audio_encoding) << 2) |
((1 + params->audio_l2_bitrate) << 4) |
(params->audio_mode << 8) |
(params->audio_mode_extension << 10) |
(((params->audio_emphasis == V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17) ?
3 :
params->audio_emphasis) << 12) |
(params->audio_crc << 14);
}
int cx2341x_ext_ctrls(struct cx2341x_mpeg_params *params,
struct v4l2_ext_controls *ctrls, int cmd)
{
int err = 0;
int i;
if (cmd == VIDIOC_G_EXT_CTRLS) {
for (i = 0; i < ctrls->count; i++) {
struct v4l2_ext_control *ctrl = ctrls->controls + i;
err = cx2341x_get_ctrl(params, ctrl);
if (err) {
ctrls->error_idx = i;
break;
}
}
return err;
}
for (i = 0; i < ctrls->count; i++) {
struct v4l2_ext_control *ctrl = ctrls->controls + i;
struct v4l2_queryctrl qctrl;
const char **menu_items = NULL;
qctrl.id = ctrl->id;
err = cx2341x_ctrl_query(params, &qctrl);
if (err)
break;
if (qctrl.type == V4L2_CTRL_TYPE_MENU)
menu_items = cx2341x_ctrl_get_menu(qctrl.id);
err = v4l2_ctrl_check(ctrl, &qctrl, menu_items);
if (err)
break;
err = cx2341x_set_ctrl(params, ctrl);
if (err)
break;
}
if (err == 0 && params->video_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
params->video_bitrate_peak < params->video_bitrate) {
err = -ERANGE;
ctrls->error_idx = ctrls->count;
}
if (err) {
ctrls->error_idx = i;
}
else {
cx2341x_calc_audio_properties(params);
}
return err;
}
void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p)
{
static struct cx2341x_mpeg_params default_params = {
/* misc */
.width = 720,
.height = 480,
.is_50hz = 0,
/* stream */
.stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
/* audio */
.audio_sampling_freq = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000,
.audio_encoding = V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
.audio_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_224K,
.audio_mode = V4L2_MPEG_AUDIO_MODE_STEREO,
.audio_mode_extension = V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4,
.audio_emphasis = V4L2_MPEG_AUDIO_EMPHASIS_NONE,
.audio_crc = V4L2_MPEG_AUDIO_CRC_NONE,
/* video */
.video_encoding = V4L2_MPEG_VIDEO_ENCODING_MPEG_2,
.video_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3,
.video_b_frames = 2,
.video_gop_size = 12,
.video_gop_closure = 1,
.video_pulldown = 0,
.video_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
.video_bitrate = 6000000,
.video_bitrate_peak = 8000000,
.video_temporal_decimation = 0,
/* encoding filters */
.video_spatial_filter_mode = V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_MANUAL,
.video_spatial_filter = 0,
.video_luma_spatial_filter_type = V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_HOR,
.video_chroma_spatial_filter_type = V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_1D_HOR,
.video_temporal_filter_mode = V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_MANUAL,
.video_temporal_filter = 0,
.video_median_filter_type = V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF,
.video_luma_median_filter_top = 255,
.video_luma_median_filter_bottom = 0,
.video_chroma_median_filter_top = 255,
.video_chroma_median_filter_bottom = 0,
};
*p = default_params;
cx2341x_calc_audio_properties(p);
}
static int cx2341x_api(void *priv, cx2341x_mbox_func func, int cmd, int args, ...)
{
u32 data[CX2341X_MBOX_MAX_DATA];
va_list vargs;
int i;
va_start(vargs, args);
for (i = 0; i < args; i++) {
data[i] = va_arg(vargs, int);
}
va_end(vargs);
return func(priv, cmd, args, 0, data);
}
int cx2341x_update(void *priv, cx2341x_mbox_func func,
const struct cx2341x_mpeg_params *old, const struct cx2341x_mpeg_params *new)
{
static int mpeg_stream_type[] = {
0, /* MPEG-2 PS */
1, /* MPEG-2 TS */
2, /* MPEG-1 SS */
14, /* DVD */
11, /* VCD */
12, /* SVCD */
};
int err = 0;
cx2341x_api(priv, func, CX2341X_ENC_SET_OUTPUT_PORT, 1, 0); /* 0 = Memory */
if (old == NULL || old->is_50hz != new->is_50hz) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_FRAME_RATE, 1, new->is_50hz);
if (err) return err;
}
if (old == NULL || old->width != new->width || old->height != new->height ||
old->video_encoding != new->video_encoding) {
u16 w = new->width;
u16 h = new->height;
if (new->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1) {
w /= 2;
h /= 2;
}
err = cx2341x_api(priv, func, CX2341X_ENC_SET_FRAME_SIZE, 2, h, w);
if (err) return err;
}
if (old == NULL || old->stream_type != new->stream_type) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_STREAM_TYPE, 1, mpeg_stream_type[new->stream_type]);
if (err) return err;
}
if (old == NULL || old->video_aspect != new->video_aspect) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_ASPECT_RATIO, 1, 1 + new->video_aspect);
if (err) return err;
}
if (old == NULL || old->video_b_frames != new->video_b_frames ||
old->video_gop_size != new->video_gop_size) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_GOP_PROPERTIES, 2,
new->video_gop_size, new->video_b_frames + 1);
if (err) return err;
}
if (old == NULL || old->video_gop_closure != new->video_gop_closure) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_GOP_CLOSURE, 1, new->video_gop_closure);
if (err) return err;
}
if (old == NULL || old->video_pulldown != new->video_pulldown) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_3_2_PULLDOWN, 1, new->video_pulldown);
if (err) return err;
}
if (old == NULL || old->audio_properties != new->audio_properties) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_AUDIO_PROPERTIES, 1, new->audio_properties);
if (err) return err;
}
if (old == NULL || old->video_bitrate_mode != new->video_bitrate_mode ||
old->video_bitrate != new->video_bitrate ||
old->video_bitrate_peak != new->video_bitrate_peak) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_BIT_RATE, 5,
new->video_bitrate_mode, new->video_bitrate,
new->video_bitrate_peak / 400, 0, 0);
if (err) return err;
}
if (old == NULL || old->video_spatial_filter_mode != new->video_spatial_filter_mode ||
old->video_temporal_filter_mode != new->video_temporal_filter_mode ||
old->video_median_filter_type != new->video_median_filter_type) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_DNR_FILTER_MODE, 2,
new->video_spatial_filter_mode | (new->video_temporal_filter_mode << 1),
new->video_median_filter_type);
if (err) return err;
}
if (old == NULL ||
old->video_luma_median_filter_bottom != new->video_luma_median_filter_bottom ||
old->video_luma_median_filter_top != new->video_luma_median_filter_top ||
old->video_chroma_median_filter_bottom != new->video_chroma_median_filter_bottom ||
old->video_chroma_median_filter_top != new->video_chroma_median_filter_top) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_CORING_LEVELS, 4,
new->video_luma_median_filter_bottom,
new->video_luma_median_filter_top,
new->video_chroma_median_filter_bottom,
new->video_chroma_median_filter_top);
if (err) return err;
}
if (old == NULL ||
old->video_luma_spatial_filter_type != new->video_luma_spatial_filter_type ||
old->video_chroma_spatial_filter_type != new->video_chroma_spatial_filter_type) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_SPATIAL_FILTER_TYPE, 2,
new->video_luma_spatial_filter_type, new->video_chroma_spatial_filter_type);
if (err) return err;
}
if (old == NULL ||
old->video_spatial_filter != new->video_spatial_filter ||
old->video_temporal_filter != new->video_temporal_filter) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_DNR_FILTER_PROPS, 2,
new->video_spatial_filter, new->video_temporal_filter);
if (err) return err;
}
if (old == NULL || old->video_temporal_decimation != new->video_temporal_decimation) {
err = cx2341x_api(priv, func, CX2341X_ENC_SET_FRAME_DROP_RATE, 1,
new->video_temporal_decimation);
if (err) return err;
}
return 0;
}
static const char *cx2341x_menu_item(struct cx2341x_mpeg_params *p, u32 id)
{
const char **menu = cx2341x_ctrl_get_menu(id);
struct v4l2_ext_control ctrl;
if (menu == NULL)
goto invalid;
ctrl.id = id;
if (cx2341x_get_ctrl(p, &ctrl))
goto invalid;
while (ctrl.value-- && *menu) menu++;
if (*menu == NULL)
goto invalid;
return *menu;
invalid:
return "<invalid>";
}
void cx2341x_log_status(struct cx2341x_mpeg_params *p, int card_id)
{
int is_mpeg1 = p->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
/* Stream */
printk(KERN_INFO "cx2341x-%d: Stream: %s\n",
card_id,
cx2341x_menu_item(p, V4L2_CID_MPEG_STREAM_TYPE));
/* Video */
printk(KERN_INFO "cx2341x-%d: Video: %dx%d, %d fps\n",
card_id,
p->width / (is_mpeg1 ? 2 : 1), p->height / (is_mpeg1 ? 2 : 1),
p->is_50hz ? 25 : 30);
printk(KERN_INFO "cx2341x-%d: Video: %s, %s, %s, %d",
card_id,
cx2341x_menu_item(p, V4L2_CID_MPEG_VIDEO_ENCODING),
cx2341x_menu_item(p, V4L2_CID_MPEG_VIDEO_ASPECT),
cx2341x_menu_item(p, V4L2_CID_MPEG_VIDEO_BITRATE_MODE),
p->video_bitrate);
if (p->video_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) {
printk(", Peak %d", p->video_bitrate_peak);
}
printk("\n");
printk(KERN_INFO "cx2341x-%d: Video: GOP Size %d, %d B-Frames, %sGOP Closure, %s3:2 Pulldown\n",
card_id,
p->video_gop_size, p->video_b_frames,
p->video_gop_closure ? "" : "No ",
p->video_pulldown ? "" : "No ");
if (p->video_temporal_decimation) {
printk(KERN_INFO "cx2341x-%d: Video: Temporal Decimation %d\n",
card_id, p->video_temporal_decimation);
}
/* Audio */
printk(KERN_INFO "cx2341x-%d: Audio: %s, %s, %s, %s",
card_id,
cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ),
cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_ENCODING),
cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_L2_BITRATE),
cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_MODE));
if (p->audio_mode == V4L2_MPEG_AUDIO_MODE_JOINT_STEREO) {
printk(", %s",
cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_MODE_EXTENSION));
}
printk(", %s, %s\n",
cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_EMPHASIS),
cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_CRC));
/* Encoding filters */
printk(KERN_INFO "cx2341x-%d: Spatial Filter: %s, Luma %s, Chroma %s, %d\n",
card_id,
cx2341x_menu_item(p, V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE),
cx2341x_menu_item(p, V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE),
cx2341x_menu_item(p, V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE),
p->video_spatial_filter);
printk(KERN_INFO "cx2341x-%d: Temporal Filter: %s, %d\n",
card_id,
cx2341x_menu_item(p, V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE),
p->video_temporal_filter);
printk(KERN_INFO "cx2341x-%d: Median Filter: %s, Luma [%d, %d], Chroma [%d, %d]\n",
card_id,
cx2341x_menu_item(p, V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE),
p->video_luma_median_filter_bottom,
p->video_luma_median_filter_top,
p->video_chroma_median_filter_bottom,
p->video_chroma_median_filter_top);
}
EXPORT_SYMBOL(cx2341x_fill_defaults);
EXPORT_SYMBOL(cx2341x_ctrl_query);
EXPORT_SYMBOL(cx2341x_ctrl_get_menu);
EXPORT_SYMBOL(cx2341x_ext_ctrls);
EXPORT_SYMBOL(cx2341x_update);
EXPORT_SYMBOL(cx2341x_log_status);
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
