diff options
author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
commit | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch) | |
tree | bc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/media/v4l2-subdev.h | |
parent | 21adb5284111190057db245cfc2b54091920c373 (diff) |
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/media/v4l2-subdev.h')
-rw-r--r-- | libdde_linux26/contrib/include/media/v4l2-subdev.h | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/libdde_linux26/contrib/include/media/v4l2-subdev.h b/libdde_linux26/contrib/include/media/v4l2-subdev.h deleted file mode 100644 index 37b09e56..00000000 --- a/libdde_linux26/contrib/include/media/v4l2-subdev.h +++ /dev/null @@ -1,189 +0,0 @@ -/* - V4L2 sub-device support header. - - Copyright (C) 2008 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_SUBDEV_H -#define _V4L2_SUBDEV_H - -#include <media/v4l2-common.h> - -struct v4l2_device; -struct v4l2_subdev; -struct tuner_setup; - -/* Sub-devices are devices that are connected somehow to the main bridge - device. These devices are usually audio/video muxers/encoders/decoders or - sensors and webcam controllers. - - Usually these devices are controlled through an i2c bus, but other busses - may also be used. - - The v4l2_subdev struct provides a way of accessing these devices in a - generic manner. Most operations that these sub-devices support fall in - a few categories: core ops, audio ops, video ops and tuner ops. - - More categories can be added if needed, although this should remain a - limited set (no more than approx. 8 categories). - - Each category has its own set of ops that subdev drivers can implement. - - A subdev driver can leave the pointer to the category ops NULL if - it does not implement them (e.g. an audio subdev will generally not - implement the video category ops). The exception is the core category: - this must always be present. - - These ops are all used internally so it is no problem to change, remove - or add ops or move ops from one to another category. Currently these - ops are based on the original ioctls, but since ops are not limited to - one argument there is room for improvement here once all i2c subdev - drivers are converted to use these ops. - */ - -/* Core ops: it is highly recommended to implement at least these ops: - - g_chip_ident - log_status - g_register - s_register - - This provides basic debugging support. - - The ioctl ops is meant for generic ioctl-like commands. Depending on - the use-case it might be better to use subdev-specific ops (currently - not yet implemented) since ops provide proper type-checking. - */ -struct v4l2_subdev_core_ops { - int (*g_chip_ident)(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip); - int (*log_status)(struct v4l2_subdev *sd); - int (*init)(struct v4l2_subdev *sd, u32 val); - int (*s_standby)(struct v4l2_subdev *sd, u32 standby); - int (*reset)(struct v4l2_subdev *sd, u32 val); - int (*s_gpio)(struct v4l2_subdev *sd, u32 val); - int (*queryctrl)(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc); - int (*g_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl); - int (*s_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl); - int (*querymenu)(struct v4l2_subdev *sd, struct v4l2_querymenu *qm); - long (*ioctl)(struct v4l2_subdev *sd, unsigned int cmd, void *arg); -#ifdef CONFIG_VIDEO_ADV_DEBUG - int (*g_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg); - int (*s_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg); -#endif -}; - -struct v4l2_subdev_tuner_ops { - int (*s_mode)(struct v4l2_subdev *sd, enum v4l2_tuner_type); - int (*s_radio)(struct v4l2_subdev *sd); - int (*s_frequency)(struct v4l2_subdev *sd, struct v4l2_frequency *freq); - int (*g_frequency)(struct v4l2_subdev *sd, struct v4l2_frequency *freq); - int (*g_tuner)(struct v4l2_subdev *sd, struct v4l2_tuner *vt); - int (*s_tuner)(struct v4l2_subdev *sd, struct v4l2_tuner *vt); - int (*s_std)(struct v4l2_subdev *sd, v4l2_std_id norm); - int (*s_type_addr)(struct v4l2_subdev *sd, struct tuner_setup *type); - int (*s_config)(struct v4l2_subdev *sd, const struct v4l2_priv_tun_config *config); -}; - -struct v4l2_subdev_audio_ops { - int (*s_clock_freq)(struct v4l2_subdev *sd, u32 freq); - int (*s_i2s_clock_freq)(struct v4l2_subdev *sd, u32 freq); - int (*s_routing)(struct v4l2_subdev *sd, const struct v4l2_routing *route); -}; - -struct v4l2_subdev_video_ops { - int (*s_routing)(struct v4l2_subdev *sd, const struct v4l2_routing *route); - int (*s_crystal_freq)(struct v4l2_subdev *sd, struct v4l2_crystal_freq *freq); - int (*decode_vbi_line)(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi_line); - int (*s_vbi_data)(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *vbi_data); - int (*g_vbi_data)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_data *vbi_data); - int (*g_sliced_vbi_cap)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_cap *cap); - int (*s_std_output)(struct v4l2_subdev *sd, v4l2_std_id std); - int (*s_stream)(struct v4l2_subdev *sd, int enable); - int (*s_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt); - int (*g_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt); -}; - -struct v4l2_subdev_ops { - const struct v4l2_subdev_core_ops *core; - const struct v4l2_subdev_tuner_ops *tuner; - const struct v4l2_subdev_audio_ops *audio; - const struct v4l2_subdev_video_ops *video; -}; - -#define V4L2_SUBDEV_NAME_SIZE 32 - -/* Each instance of a subdev driver should create this struct, either - stand-alone or embedded in a larger struct. - */ -struct v4l2_subdev { - struct list_head list; - struct module *owner; - struct v4l2_device *dev; - const struct v4l2_subdev_ops *ops; - /* name must be unique */ - char name[V4L2_SUBDEV_NAME_SIZE]; - /* can be used to group similar subdevs, value is driver-specific */ - u32 grp_id; - /* pointer to private data */ - void *priv; -}; - -static inline void v4l2_set_subdevdata(struct v4l2_subdev *sd, void *p) -{ - sd->priv = p; -} - -static inline void *v4l2_get_subdevdata(const struct v4l2_subdev *sd) -{ - return sd->priv; -} - -/* Convert an ioctl-type command to the proper v4l2_subdev_ops function call. - This is used by subdev modules that can be called by both old-style ioctl - commands and through the v4l2_subdev_ops. - - The ioctl API of the subdev driver can call this function to call the - right ops based on the ioctl cmd and arg. - - Once all subdev drivers have been converted and all drivers no longer - use the ioctl interface, then this function can be removed. - */ -int v4l2_subdev_command(struct v4l2_subdev *sd, unsigned cmd, void *arg); - -static inline void v4l2_subdev_init(struct v4l2_subdev *sd, - const struct v4l2_subdev_ops *ops) -{ - INIT_LIST_HEAD(&sd->list); - /* ops->core MUST be set */ - BUG_ON(!ops || !ops->core); - sd->ops = ops; - sd->dev = NULL; - sd->name[0] = '\0'; - sd->grp_id = 0; - sd->priv = NULL; -} - -/* Call an ops of a v4l2_subdev, doing the right checks against - NULL pointers. - - Example: err = v4l2_subdev_call(sd, core, g_chip_ident, &chip); - */ -#define v4l2_subdev_call(sd, o, f, args...) \ - (!(sd) ? -ENODEV : (((sd) && (sd)->ops->o && (sd)->ops->o->f) ? \ - (sd)->ops->o->f((sd) , ##args) : -ENOIOCTLCMD)) - -#endif |