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+/*
+ 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_
+
+/* VIDIOC_INT_AUDIO_CLOCK_FREQ */
+enum v4l2_audio_clock_freq {
+ V4L2_AUDCLK_32_KHZ = 32000,
+ V4L2_AUDCLK_441_KHZ = 44100,
+ V4L2_AUDCLK_48_KHZ = 48000,
+};
+
+/* 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,
+};
+
+/* 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)
+
+/* Set the frequency of the audio clock output.
+ Used to slave an audio processor to the video decoder, ensuring that audio
+ and video remain synchronized. */
+#define VIDIOC_INT_AUDIO_CLOCK_FREQ _IOR ('d', 103, enum v4l2_audio_clock_freq)
+
+/* 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 *)
+
+#endif /* V4L2_COMMON_H_ */
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