forked from luck/tmp_suning_uos_patched
9bb13a6dc3
- Created a new ioctl to control I2S speed. Old calls to an inadequate V4L2 API replaced. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
118 lines
4.7 KiB
C
118 lines
4.7 KiB
C
/*
|
|
v4l2 common internal API header
|
|
|
|
This header contains internal shared ioctl definitions for use by the
|
|
internal low-level v4l2 drivers.
|
|
Each ioctl begins with VIDIOC_INT_ to clearly mark that it is an internal
|
|
define,
|
|
|
|
Copyright (C) 2005 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
|
|
*/
|
|
|
|
#ifndef V4L2_COMMON_H_
|
|
#define V4L2_COMMON_H_
|
|
|
|
/* VIDIOC_INT_AUDIO_CLOCK_FREQ */
|
|
enum v4l2_audio_clock_freq {
|
|
V4L2_AUDCLK_32_KHZ = 32000,
|
|
V4L2_AUDCLK_441_KHZ = 44100,
|
|
V4L2_AUDCLK_48_KHZ = 48000,
|
|
};
|
|
|
|
/* VIDIOC_INT_G_REGISTER and VIDIOC_INT_S_REGISTER */
|
|
struct v4l2_register {
|
|
u32 i2c_id; /* I2C driver ID of the I2C chip. 0 for the I2C adapter. */
|
|
unsigned long reg;
|
|
u32 val;
|
|
};
|
|
|
|
/* VIDIOC_INT_DECODE_VBI_LINE */
|
|
struct v4l2_decode_vbi_line {
|
|
u32 is_second_field; /* Set to 0 for the first (odd) field,
|
|
set to 1 for the second (even) field. */
|
|
u8 *p; /* Pointer to the sliced VBI data from the decoder.
|
|
On exit points to the start of the payload. */
|
|
u32 line; /* Line number of the sliced VBI data (1-23) */
|
|
u32 type; /* VBI service type (V4L2_SLICED_*). 0 if no service found */
|
|
};
|
|
|
|
/* VIDIOC_INT_G_CHIP_IDENT: identifies the actual chip installed on the board */
|
|
enum v4l2_chip_ident {
|
|
/* general idents: reserved range 0-49 */
|
|
V4L2_IDENT_UNKNOWN = 0,
|
|
|
|
/* module saa7115: reserved range 100-149 */
|
|
V4L2_IDENT_SAA7114 = 104,
|
|
V4L2_IDENT_SAA7115 = 105,
|
|
|
|
/* module saa7127: reserved range 150-199 */
|
|
V4L2_IDENT_SAA7127 = 157,
|
|
V4L2_IDENT_SAA7129 = 159,
|
|
|
|
/* module cx25840: reserved range 200-249 */
|
|
V4L2_IDENT_CX25840 = 240,
|
|
V4L2_IDENT_CX25841 = 241,
|
|
V4L2_IDENT_CX25842 = 242,
|
|
V4L2_IDENT_CX25843 = 243,
|
|
};
|
|
|
|
/* only implemented if CONFIG_VIDEO_ADV_DEBUG is defined */
|
|
#define VIDIOC_INT_S_REGISTER _IOR ('d', 100, struct v4l2_register)
|
|
#define VIDIOC_INT_G_REGISTER _IOWR('d', 101, struct v4l2_register)
|
|
|
|
/* Reset the I2C chip */
|
|
#define VIDIOC_INT_RESET _IO ('d', 102)
|
|
|
|
/* Set the frequency of the audio clock output.
|
|
Used to slave an audio processor to the video decoder, ensuring that audio
|
|
and video remain synchronized. */
|
|
#define VIDIOC_INT_AUDIO_CLOCK_FREQ _IOR ('d', 103, enum v4l2_audio_clock_freq)
|
|
|
|
/* Video decoders that support sliced VBI need to implement this ioctl.
|
|
Field p of the v4l2_sliced_vbi_line struct is set to the start of the VBI
|
|
data that was generated by the decoder. The driver then parses the sliced
|
|
VBI data and sets the other fields in the struct accordingly. The pointer p
|
|
is updated to point to the start of the payload which can be copied
|
|
verbatim into the data field of the v4l2_sliced_vbi_data struct. If no
|
|
valid VBI data was found, then the type field is set to 0 on return. */
|
|
#define VIDIOC_INT_DECODE_VBI_LINE _IOWR('d', 104, struct v4l2_decode_vbi_line)
|
|
|
|
/* Used to generate VBI signals on a video signal. v4l2_sliced_vbi_data is
|
|
filled with the data packets that should be output. Note that if you set
|
|
the line field to 0, then that VBI signal is disabled. */
|
|
#define VIDIOC_INT_S_VBI_DATA _IOW ('d', 105, struct v4l2_sliced_vbi_data)
|
|
|
|
/* Used to obtain the sliced VBI packet from a readback register. Not all
|
|
video decoders support this. If no data is available because the readback
|
|
register contains invalid or erroneous data -EIO is returned. Note that
|
|
you must fill in the 'id' member and the 'field' member (to determine
|
|
whether CC data from the first or second field should be obtained). */
|
|
#define VIDIOC_INT_G_VBI_DATA _IOWR('d', 106, struct v4l2_sliced_vbi_data *)
|
|
|
|
/* Returns the chip identifier or V4L2_IDENT_UNKNOWN if no identification can
|
|
be made. */
|
|
#define VIDIOC_INT_G_CHIP_IDENT _IOR ('d', 107, enum v4l2_chip_ident *)
|
|
|
|
/* Sets I2S speed in bps. This is used to provide a standard way to select I2S
|
|
clock used by driving digital audio streams at some board designs.
|
|
Usual values for the frequency are 1024000 and 2048000.
|
|
If the frequency is not supported, then -EINVAL is returned. */
|
|
#define VIDIOC_INT_I2S_CLOCK_FREQ _IOW ('d', 108, u32)
|
|
|
|
|
|
#endif /* V4L2_COMMON_H_ */
|