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+/*
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+ v4l2 common internal API header
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+
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+ This header contains internal shared ioctl definitions for use by the
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+ internal low-level v4l2 drivers.
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+ Each ioctl begins with VIDIOC_INT_ to clearly mark that it is an internal
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+ define,
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+
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+ Copyright (C) 2005 Hans Verkuil <hverkuil@xs4all.nl>
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+ */
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+
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+#ifndef V4L2_COMMON_H_
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+#define V4L2_COMMON_H_
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+
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+/* VIDIOC_INT_AUDIO_CLOCK_FREQ */
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+enum v4l2_audio_clock_freq {
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+ V4L2_AUDCLK_32_KHZ = 32000,
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+ V4L2_AUDCLK_441_KHZ = 44100,
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+ V4L2_AUDCLK_48_KHZ = 48000,
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+};
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+
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+/* VIDIOC_INT_G_REGISTER and VIDIOC_INT_S_REGISTER */
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+struct v4l2_register {
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+ u32 i2c_id; /* I2C driver ID of the I2C chip. 0 for the I2C adapter. */
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+ unsigned long reg;
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+ u32 val;
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+};
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+
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+/* VIDIOC_INT_DECODE_VBI_LINE */
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+struct v4l2_decode_vbi_line {
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+ u32 is_second_field; /* Set to 0 for the first (odd) field,
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+ set to 1 for the second (even) field. */
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+ u8 *p; /* Pointer to the sliced VBI data from the decoder.
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+ On exit points to the start of the payload. */
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+ u32 line; /* Line number of the sliced VBI data (1-23) */
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+ u32 type; /* VBI service type (V4L2_SLICED_*). 0 if no service found */
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+};
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+
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+/* VIDIOC_INT_G_CHIP_IDENT: identifies the actual chip installed on the board */
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+enum v4l2_chip_ident {
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+ /* general idents: reserved range 0-49 */
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+ V4L2_IDENT_UNKNOWN = 0,
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+
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+ /* module saa7115: reserved range 100-149 */
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+ V4L2_IDENT_SAA7114 = 104,
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+ V4L2_IDENT_SAA7115 = 105,
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+
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+ /* module saa7127: reserved range 150-199 */
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+ V4L2_IDENT_SAA7127 = 157,
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+ V4L2_IDENT_SAA7129 = 159,
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+
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+ /* module cx25840: reserved range 200-249 */
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+ V4L2_IDENT_CX25840 = 240,
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+ V4L2_IDENT_CX25841 = 241,
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+ V4L2_IDENT_CX25842 = 242,
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+ V4L2_IDENT_CX25843 = 243,
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+};
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+
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+/* only implemented if CONFIG_VIDEO_ADV_DEBUG is defined */
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+#define VIDIOC_INT_S_REGISTER _IOR ('d', 100, struct v4l2_register)
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+#define VIDIOC_INT_G_REGISTER _IOWR('d', 101, struct v4l2_register)
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+
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+/* Reset the I2C chip */
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+#define VIDIOC_INT_RESET _IO ('d', 102)
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+
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+/* Set the frequency of the audio clock output.
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+ Used to slave an audio processor to the video decoder, ensuring that audio
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+ and video remain synchronized. */
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+#define VIDIOC_INT_AUDIO_CLOCK_FREQ _IOR ('d', 103, enum v4l2_audio_clock_freq)
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+
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+/* Video decoders that support sliced VBI need to implement this ioctl.
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+ Field p of the v4l2_sliced_vbi_line struct is set to the start of the VBI
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+ data that was generated by the decoder. The driver then parses the sliced
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+ VBI data and sets the other fields in the struct accordingly. The pointer p
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+ is updated to point to the start of the payload which can be copied
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+ verbatim into the data field of the v4l2_sliced_vbi_data struct. If no
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+ valid VBI data was found, then the type field is set to 0 on return. */
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+#define VIDIOC_INT_DECODE_VBI_LINE _IOWR('d', 104, struct v4l2_decode_vbi_line)
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+
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+/* Used to generate VBI signals on a video signal. v4l2_sliced_vbi_data is
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+ filled with the data packets that should be output. Note that if you set
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+ the line field to 0, then that VBI signal is disabled. */
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+#define VIDIOC_INT_S_VBI_DATA _IOW ('d', 105, struct v4l2_sliced_vbi_data)
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+
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+/* Used to obtain the sliced VBI packet from a readback register. Not all
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+ video decoders support this. If no data is available because the readback
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+ register contains invalid or erroneous data -EIO is returned. Note that
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+ you must fill in the 'id' member and the 'field' member (to determine
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+ whether CC data from the first or second field should be obtained). */
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+#define VIDIOC_INT_G_VBI_DATA _IOWR('d', 106, struct v4l2_sliced_vbi_data *)
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+
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+/* Returns the chip identifier or V4L2_IDENT_UNKNOWN if no identification can
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+ be made. */
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+#define VIDIOC_INT_G_CHIP_IDENT _IOR ('d', 107, enum v4l2_chip_ident *)
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+
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+#endif /* V4L2_COMMON_H_ */
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