2005-11-13 17:07:55 -07:00
|
|
|
/*
|
|
|
|
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_
|
|
|
|
|
2006-01-09 10:32:40 -07:00
|
|
|
/* v4l debugging and diagnostics */
|
|
|
|
|
|
|
|
/* Common printk constucts for v4l-i2c drivers. These macros create a unique
|
|
|
|
prefix consisting of the driver name, the adapter number and the i2c
|
|
|
|
address. */
|
|
|
|
#define v4l_printk(level, name, adapter, addr, fmt, arg...) \
|
|
|
|
printk(level "%s %d-%04x: " fmt, name, i2c_adapter_id(adapter), addr , ## arg)
|
|
|
|
|
2006-01-09 10:53:26 -07:00
|
|
|
#define v4l_client_printk(level, client, fmt, arg...) \
|
2006-01-09 10:32:40 -07:00
|
|
|
v4l_printk(level, (client)->driver->driver.name, (client)->adapter, \
|
|
|
|
(client)->addr, fmt , ## arg)
|
|
|
|
|
|
|
|
#define v4l_err(client, fmt, arg...) \
|
|
|
|
v4l_client_printk(KERN_ERR, client, fmt , ## arg)
|
|
|
|
|
|
|
|
#define v4l_warn(client, fmt, arg...) \
|
|
|
|
v4l_client_printk(KERN_WARNING, client, fmt , ## arg)
|
|
|
|
|
|
|
|
#define v4l_info(client, fmt, arg...) \
|
|
|
|
v4l_client_printk(KERN_INFO, client, fmt , ## arg)
|
|
|
|
|
|
|
|
/* These three macros assume that the debug level is set with a module
|
|
|
|
parameter called 'debug'. */
|
|
|
|
#define v4l_dbg(level, client, fmt, arg...) \
|
|
|
|
do { \
|
2006-01-09 10:32:40 -07:00
|
|
|
extern int debug; \
|
2006-01-09 10:32:40 -07:00
|
|
|
if (debug >= (level)) \
|
|
|
|
v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
/* Prints the ioctl in a human-readable format */
|
|
|
|
extern void v4l_printk_ioctl(unsigned int cmd);
|
|
|
|
|
|
|
|
/* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */
|
|
|
|
#define v4l_print_ioctl(name, cmd) \
|
|
|
|
do { \
|
|
|
|
printk(KERN_DEBUG "%s: ", name); \
|
|
|
|
v4l_printk_ioctl(cmd); \
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
/* Use this macro in I2C drivers where 'client' is the struct i2c_client
|
|
|
|
pointer */
|
|
|
|
#define v4l_i2c_print_ioctl(client, cmd) \
|
|
|
|
do { \
|
|
|
|
v4l_client_printk(KERN_DEBUG, client, ""); \
|
|
|
|
v4l_printk_ioctl(cmd); \
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
|
|
|
|
/* Internal ioctls */
|
|
|
|
|
2005-11-13 17:07:55 -07:00
|
|
|
/* 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,
|
|
|
|
};
|
|
|
|
|
2006-01-09 10:32:31 -07:00
|
|
|
/* audio ioctls */
|
|
|
|
/* v4l device was opened in Radio mode */
|
|
|
|
#define AUDC_SET_RADIO _IO('d',88)
|
|
|
|
/* select from TV,radio,extern,MUTE */
|
|
|
|
#define AUDC_SET_INPUT _IOW('d',89,int)
|
|
|
|
|
|
|
|
/* tuner ioctls */
|
|
|
|
/* Sets tuner type and its I2C addr */
|
|
|
|
#define TUNER_SET_TYPE_ADDR _IOW('d',90,int)
|
|
|
|
/* Puts tuner on powersaving state, disabling it, except for i2c */
|
|
|
|
#define TUNER_SET_STANDBY _IOW('d',91,int)
|
|
|
|
/* Sets tda9887 specific stuff, like port1, port2 and qss */
|
|
|
|
#define TDA9887_SET_CONFIG _IOW('d',92,int)
|
|
|
|
|
2005-11-13 17:07:55 -07:00
|
|
|
/* 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)
|
|
|
|
|
2006-01-09 10:25:41 -07:00
|
|
|
/* Set the frequency (in Hz) of the audio clock output.
|
2005-11-13 17:07:55 -07:00
|
|
|
Used to slave an audio processor to the video decoder, ensuring that audio
|
2006-01-09 10:25:41 -07:00
|
|
|
and video remain synchronized.
|
|
|
|
Usual values for the frequency are 48000, 44100 or 32000 Hz.
|
|
|
|
If the frequency is not supported, then -EINVAL is returned. */
|
|
|
|
#define VIDIOC_INT_AUDIO_CLOCK_FREQ _IOW ('d', 103, u32)
|
2005-11-13 17:07:55 -07:00
|
|
|
|
|
|
|
/* 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 *)
|
|
|
|
|
2006-01-09 10:25:37 -07:00
|
|
|
/* 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)
|
|
|
|
|
2005-11-13 17:07:55 -07:00
|
|
|
#endif /* V4L2_COMMON_H_ */
|