4daee77976
The v4l2_ctrl_check() helper function is now only used in cx2341x. Move it there and make it static. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
193 lines
6.4 KiB
C
193 lines
6.4 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_
|
|
|
|
#include <media/v4l2-dev.h>
|
|
|
|
/* 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)
|
|
|
|
#define v4l_client_printk(level, client, fmt, arg...) \
|
|
v4l_printk(level, (client)->dev.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, debug, client, fmt, arg...) \
|
|
do { \
|
|
if (debug >= (level)) \
|
|
v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \
|
|
} while (0)
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/* These printk constructs can be used with v4l2_device and v4l2_subdev */
|
|
#define v4l2_printk(level, dev, fmt, arg...) \
|
|
printk(level "%s: " fmt, (dev)->name , ## arg)
|
|
|
|
#define v4l2_err(dev, fmt, arg...) \
|
|
v4l2_printk(KERN_ERR, dev, fmt , ## arg)
|
|
|
|
#define v4l2_warn(dev, fmt, arg...) \
|
|
v4l2_printk(KERN_WARNING, dev, fmt , ## arg)
|
|
|
|
#define v4l2_info(dev, fmt, arg...) \
|
|
v4l2_printk(KERN_INFO, dev, fmt , ## arg)
|
|
|
|
/* These three macros assume that the debug level is set with a module
|
|
parameter called 'debug'. */
|
|
#define v4l2_dbg(level, debug, dev, fmt, arg...) \
|
|
do { \
|
|
if (debug >= (level)) \
|
|
v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
|
|
} while (0)
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/* Control helper function */
|
|
|
|
int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/* I2C Helper functions */
|
|
|
|
struct i2c_driver;
|
|
struct i2c_adapter;
|
|
struct i2c_client;
|
|
struct i2c_device_id;
|
|
struct v4l2_device;
|
|
struct v4l2_subdev;
|
|
struct v4l2_subdev_ops;
|
|
|
|
|
|
/* Load an i2c module and return an initialized v4l2_subdev struct.
|
|
The client_type argument is the name of the chip that's on the adapter. */
|
|
struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
|
|
struct i2c_adapter *adapter, const char *client_type,
|
|
u8 addr, const unsigned short *probe_addrs);
|
|
|
|
struct i2c_board_info;
|
|
|
|
struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
|
|
struct i2c_adapter *adapter, struct i2c_board_info *info,
|
|
const unsigned short *probe_addrs);
|
|
|
|
/* Initialize a v4l2_subdev with data from an i2c_client struct */
|
|
void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
|
|
const struct v4l2_subdev_ops *ops);
|
|
/* Return i2c client address of v4l2_subdev. */
|
|
unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd);
|
|
|
|
enum v4l2_i2c_tuner_type {
|
|
ADDRS_RADIO, /* Radio tuner addresses */
|
|
ADDRS_DEMOD, /* Demod tuner addresses */
|
|
ADDRS_TV, /* TV tuner addresses */
|
|
/* TV tuner addresses if demod is present, this excludes
|
|
addresses used by the demodulator from the list of
|
|
candidates. */
|
|
ADDRS_TV_WITH_DEMOD,
|
|
};
|
|
/* Return a list of I2C tuner addresses to probe. Use only if the tuner
|
|
addresses are unknown. */
|
|
const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type);
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/* SPI Helper functions */
|
|
#if defined(CONFIG_SPI)
|
|
|
|
#include <linux/spi/spi.h>
|
|
|
|
struct spi_device;
|
|
|
|
/* Load an spi module and return an initialized v4l2_subdev struct.
|
|
The client_type argument is the name of the chip that's on the adapter. */
|
|
struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
|
|
struct spi_master *master, struct spi_board_info *info);
|
|
|
|
/* Initialize a v4l2_subdev with data from an spi_device struct */
|
|
void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,
|
|
const struct v4l2_subdev_ops *ops);
|
|
#endif
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/* Note: these remaining ioctls/structs should be removed as well, but they are
|
|
still used in tuner-simple.c (TUNER_SET_CONFIG), cx18/ivtv (RESET) and
|
|
v4l2-int-device.h (v4l2_routing). To remove these ioctls some more cleanup
|
|
is needed in those modules. */
|
|
|
|
/* s_config */
|
|
struct v4l2_priv_tun_config {
|
|
int tuner;
|
|
void *priv;
|
|
};
|
|
#define TUNER_SET_CONFIG _IOW('d', 92, struct v4l2_priv_tun_config)
|
|
|
|
#define VIDIOC_INT_RESET _IOW ('d', 102, u32)
|
|
|
|
struct v4l2_routing {
|
|
u32 input;
|
|
u32 output;
|
|
};
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/* Miscellaneous helper functions */
|
|
|
|
void v4l_bound_align_image(unsigned int *w, unsigned int wmin,
|
|
unsigned int wmax, unsigned int walign,
|
|
unsigned int *h, unsigned int hmin,
|
|
unsigned int hmax, unsigned int halign,
|
|
unsigned int salign);
|
|
|
|
struct v4l2_discrete_probe {
|
|
const struct v4l2_frmsize_discrete *sizes;
|
|
int num_sizes;
|
|
};
|
|
|
|
const struct v4l2_frmsize_discrete *v4l2_find_nearest_format(
|
|
const struct v4l2_discrete_probe *probe,
|
|
s32 width, s32 height);
|
|
|
|
void v4l2_get_timestamp(struct timeval *tv);
|
|
|
|
#endif /* V4L2_COMMON_H_ */
|