summaryrefslogtreecommitdiff
path: root/libdde-linux26/contrib/include/media/v4l2-common.h
diff options
context:
space:
mode:
authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:15:01 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:15:01 +0000
commit7996a3d79d55b7f879dfd62e202bbfe2963718d3 (patch)
tree8d9f6759fec4099b9be503c11c7ed174f7204980 /libdde-linux26/contrib/include/media/v4l2-common.h
parent4fbe7358c7747a9165f776eb19addbb9baf7def2 (diff)
really properly move files
Diffstat (limited to 'libdde-linux26/contrib/include/media/v4l2-common.h')
-rw-r--r--libdde-linux26/contrib/include/media/v4l2-common.h287
1 files changed, 287 insertions, 0 deletions
diff --git a/libdde-linux26/contrib/include/media/v4l2-common.h b/libdde-linux26/contrib/include/media/v4l2-common.h
new file mode 100644
index 00000000..95e74f18
--- /dev/null
+++ b/libdde-linux26/contrib/include/media/v4l2-common.h
@@ -0,0 +1,287 @@
+/*
+ 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)->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, 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)
+
+/* ------------------------------------------------------------------------- */
+
+/* Priority helper functions */
+
+struct v4l2_prio_state {
+ atomic_t prios[4];
+};
+int v4l2_prio_init(struct v4l2_prio_state *global);
+int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
+ enum v4l2_priority new);
+int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
+int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
+enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
+int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
+
+/* ------------------------------------------------------------------------- */
+
+/* Control helper functions */
+
+int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
+ const char **menu_items);
+const char *v4l2_ctrl_get_name(u32 id);
+const char **v4l2_ctrl_get_menu(u32 id);
+int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
+int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl);
+int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu,
+ struct v4l2_queryctrl *qctrl, const char **menu_items);
+#define V4L2_CTRL_MENU_IDS_END (0xffffffff)
+int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids);
+u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id);
+
+/* ------------------------------------------------------------------------- */
+
+/* Register/chip ident helper function */
+
+struct i2c_client; /* forward reference */
+int v4l2_chip_match_i2c_client(struct i2c_client *c, const struct v4l2_dbg_match *match);
+int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_dbg_chip_ident *chip,
+ u32 ident, u32 revision);
+int v4l2_chip_match_host(const struct v4l2_dbg_match *match);
+
+/* ------------------------------------------------------------------------- */
+
+/* Helper function for I2C legacy drivers */
+
+struct i2c_driver;
+struct i2c_adapter;
+struct i2c_client;
+struct i2c_device_id;
+struct v4l2_device;
+struct v4l2_subdev;
+struct v4l2_subdev_ops;
+
+int v4l2_i2c_attach(struct i2c_adapter *adapter, int address, struct i2c_driver *driver,
+ const char *name,
+ int (*probe)(struct i2c_client *, const struct i2c_device_id *));
+
+/* Load an i2c module and return an initialized v4l2_subdev struct.
+ Only call request_module if module_name != NULL.
+ The client_type argument is the name of the chip that's on the adapter. */
+struct v4l2_subdev *v4l2_i2c_new_subdev(struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type, u8 addr);
+/* Probe and load an i2c module and return an initialized v4l2_subdev struct.
+ Only call request_module if module_name != NULL.
+ The client_type argument is the name of the chip that's on the adapter. */
+struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,
+ const char *module_name, const char *client_type,
+ const unsigned short *addrs);
+/* Initialize an 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);
+
+/* ------------------------------------------------------------------------- */
+
+/* Internal ioctls */
+
+/* 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 */
+};
+
+struct v4l2_priv_tun_config {
+ int tuner;
+ void *priv;
+};
+
+/* audio ioctls */
+
+/* v4l device was opened in Radio mode, to be replaced by VIDIOC_INT_S_TUNER_MODE */
+#define AUDC_SET_RADIO _IO('d',88)
+
+/* 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. To be replaced
+ by VIDIOC_INT_S_STANDBY. */
+#define TUNER_SET_STANDBY _IOW('d', 91, int)
+
+/* Sets tda9887 specific stuff, like port1, port2 and qss */
+#define TUNER_SET_CONFIG _IOW('d', 92, struct v4l2_priv_tun_config)
+
+/* Switch the tuner to a specific tuner mode. Replacement of AUDC_SET_RADIO */
+#define VIDIOC_INT_S_TUNER_MODE _IOW('d', 93, enum v4l2_tuner_type)
+
+/* Generic standby command. Passing -1 (all bits set to 1) will put the whole
+ chip into standby mode, value 0 will make the chip fully active. Specific
+ bits can be used by certain chips to enable/disable specific subsystems.
+ Replacement of TUNER_SET_STANDBY. */
+#define VIDIOC_INT_S_STANDBY _IOW('d', 94, u32)
+
+/* 100, 101 used by VIDIOC_DBG_[SG]_REGISTER */
+
+/* Generic reset command. The argument selects which subsystems to reset.
+ Passing 0 will always reset the whole chip. */
+#define VIDIOC_INT_RESET _IOW ('d', 102, u32)
+
+/* Set the frequency (in Hz) of the audio clock output.
+ Used to slave an audio processor to the video decoder, ensuring that audio
+ 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)
+
+/* 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. If no
+ valid VBI data was found, then the type field is set to 0 on return. */
+#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)
+
+/* 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)
+
+/* Routing definition, device dependent. It specifies which inputs (if any)
+ should be routed to which outputs (if any). */
+struct v4l2_routing {
+ u32 input;
+ u32 output;
+};
+
+/* These internal commands should be used to define the inputs and outputs
+ of an audio/video chip. They will replace the v4l2 API commands
+ VIDIOC_S/G_INPUT, VIDIOC_S/G_OUTPUT, VIDIOC_S/G_AUDIO and VIDIOC_S/G_AUDOUT
+ that are meant to be used by the user.
+ The internal commands should be used to switch inputs/outputs
+ because only the driver knows how to map a 'Television' input to the precise
+ input/output routing of an A/D converter, or a DSP, or a video digitizer.
+ These four commands should only be sent directly to an i2c device, they
+ should not be broadcast as the routing is very device specific. */
+#define VIDIOC_INT_S_AUDIO_ROUTING _IOW ('d', 109, struct v4l2_routing)
+#define VIDIOC_INT_G_AUDIO_ROUTING _IOR ('d', 110, struct v4l2_routing)
+#define VIDIOC_INT_S_VIDEO_ROUTING _IOW ('d', 111, struct v4l2_routing)
+#define VIDIOC_INT_G_VIDEO_ROUTING _IOR ('d', 112, struct v4l2_routing)
+
+struct v4l2_crystal_freq {
+ u32 freq; /* frequency in Hz of the crystal */
+ u32 flags; /* device specific flags */
+};
+
+/* Sets the frequency of the crystal used to generate the clocks.
+ An extra flags field allows device specific configuration regarding
+ clock frequency dividers, etc. If not used, then set flags to 0.
+ If the frequency is not supported, then -EINVAL is returned. */
+#define VIDIOC_INT_S_CRYSTAL_FREQ _IOW('d', 113, struct v4l2_crystal_freq)
+
+/* Initialize the sensor registors to some sort of reasonable
+ default values. */
+#define VIDIOC_INT_INIT _IOW('d', 114, u32)
+
+/* Set v4l2_std_id for video OUTPUT devices. This is ignored by
+ video input devices. */
+#define VIDIOC_INT_S_STD_OUTPUT _IOW('d', 115, v4l2_std_id)
+
+/* Get v4l2_std_id for video OUTPUT devices. This is ignored by
+ video input devices. */
+#define VIDIOC_INT_G_STD_OUTPUT _IOW('d', 116, v4l2_std_id)
+
+/* Set GPIO pins. Very simple right now, might need to be extended with
+ a v4l2_gpio struct if a direction is also needed. */
+#define VIDIOC_INT_S_GPIO _IOW('d', 117, u32)
+
+#endif /* V4L2_COMMON_H_ */