--- /dev/null
+#ifndef PWC_IOCTL_H
+#define PWC_IOCTL_H
+
+/* (C) 2001-2004 Nemosoft Unv.
+ (C) 2004-2006 Luc Saillard (luc@saillard.org)
+
+ NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
+ driver and thus may have bugs that are not present in the original version.
+ Please send bug reports and support requests to <luc@saillard.org>.
+ The decompression routines have been implemented by reverse-engineering the
+ Nemosoft binary pwcx module. Caveat emptor.
+
+ 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
+*/
+
+/* This is pwc-ioctl.h belonging to PWC 10.0.10
+ It contains structures and defines to communicate from user space
+ directly to the driver.
+ */
+
+/*
+ Changes
+ 2001/08/03 Alvarado Added ioctl constants to access methods for
+ changing white balance and red/blue gains
+ 2002/12/15 G. H. Fernandez-Toribio VIDIOCGREALSIZE
+ 2003/12/13 Nemosft Unv. Some modifications to make interfacing to
+ PWCX easier
+ 2006/01/01 Luc Saillard Add raw format definition
+ */
+
+/* These are private ioctl() commands, specific for the Philips webcams.
+ They contain functions not found in other webcams, and settings not
+ specified in the Video4Linux API.
+
+ The #define names are built up like follows:
+ VIDIOC VIDeo IOCtl prefix
+ PWC Philps WebCam
+ G optional: Get
+ S optional: Set
+ ... the function
+ */
+
+#include <linux/types.h>
+#include <linux/version.h>
+
+
+ /* Enumeration of image sizes */
+#define PSZ_SQCIF 0x00
+#define PSZ_QSIF 0x01
+#define PSZ_QCIF 0x02
+#define PSZ_SIF 0x03
+#define PSZ_CIF 0x04
+#define PSZ_VGA 0x05
+#define PSZ_MAX 6
+
+
+/* The frame rate is encoded in the video_window.flags parameter using
+ the upper 16 bits, since some flags are defined nowadays. The following
+ defines provide a mask and shift to filter out this value.
+ This value can also be passing using the private flag when using v4l2 and
+ VIDIOC_S_FMT ioctl.
+
+ In 'Snapshot' mode the camera freezes its automatic exposure and colour
+ balance controls.
+ */
+#define PWC_FPS_SHIFT 16
+#define PWC_FPS_MASK 0x00FF0000
+#define PWC_FPS_FRMASK 0x003F0000
+#define PWC_FPS_SNAPSHOT 0x00400000
+#define PWC_QLT_MASK 0x03000000
+#define PWC_QLT_SHIFT 24
+
+
+/* structure for transferring x & y coordinates */
+struct pwc_coord
+{
+ int x, y; /* guess what */
+ int size; /* size, or offset */
+};
+
+
+/* Used with VIDIOCPWCPROBE */
+struct pwc_probe
+{
+ char name[32];
+ int type;
+};
+
+struct pwc_serial
+{
+ char serial[30]; /* String with serial number. Contains terminating 0 */
+};
+
+/* pwc_whitebalance.mode values */
+#define PWC_WB_INDOOR 0
+#define PWC_WB_OUTDOOR 1
+#define PWC_WB_FL 2
+#define PWC_WB_MANUAL 3
+#define PWC_WB_AUTO 4
+
+/* Used with VIDIOCPWC[SG]AWB (Auto White Balance).
+ Set mode to one of the PWC_WB_* values above.
+ *red and *blue are the respective gains of these colour components inside
+ the camera; range 0..65535
+ When 'mode' == PWC_WB_MANUAL, 'manual_red' and 'manual_blue' are set or read;
+ otherwise undefined.
+ 'read_red' and 'read_blue' are read-only.
+*/
+struct pwc_whitebalance
+{
+ int mode;
+ int manual_red, manual_blue; /* R/W */
+ int read_red, read_blue; /* R/O */
+};
+
+/*
+ 'control_speed' and 'control_delay' are used in automatic whitebalance mode,
+ and tell the camera how fast it should react to changes in lighting, and
+ with how much delay. Valid values are 0..65535.
+*/
+struct pwc_wb_speed
+{
+ int control_speed;
+ int control_delay;
+
+};
+
+/* Used with VIDIOCPWC[SG]LED */
+struct pwc_leds
+{
+ int led_on; /* Led on-time; range = 0..25000 */
+ int led_off; /* Led off-time; range = 0..25000 */
+};
+
+/* Image size (used with GREALSIZE) */
+struct pwc_imagesize
+{
+ int width;
+ int height;
+};
+
+/* Defines and structures for Motorized Pan & Tilt */
+#define PWC_MPT_PAN 0x01
+#define PWC_MPT_TILT 0x02
+#define PWC_MPT_TIMEOUT 0x04 /* for status */
+
+/* Set angles; when absolute != 0, the angle is absolute and the
+ driver calculates the relative offset for you. This can only
+ be used with VIDIOCPWCSANGLE; VIDIOCPWCGANGLE always returns
+ absolute angles.
+ */
+struct pwc_mpt_angles
+{
+ int absolute; /* write-only */
+ int pan; /* degrees * 100 */
+ int tilt; /* degress * 100 */
+};
+
+/* Range of angles of the camera, both horizontally and vertically.
+ */
+struct pwc_mpt_range
+{
+ int pan_min, pan_max; /* degrees * 100 */
+ int tilt_min, tilt_max;
+};
+
+struct pwc_mpt_status
+{
+ int status;
+ int time_pan;
+ int time_tilt;
+};
+
+
+/* This is used for out-of-kernel decompression. With it, you can get
+ all the necessary information to initialize and use the decompressor
+ routines in standalone applications.
+ */
+struct pwc_video_command
+{
+ int type; /* camera type (645, 675, 730, etc.) */
+ int release; /* release number */
+
+ int size; /* one of PSZ_* */
+ int alternate;
+ int command_len; /* length of USB video command */
+ unsigned char command_buf[13]; /* Actual USB video command */
+ int bandlength; /* >0 = compressed */
+ int frame_size; /* Size of one (un)compressed frame */
+};
+
+/* Flags for PWCX subroutines. Not all modules honour all flags. */
+#define PWCX_FLAG_PLANAR 0x0001
+#define PWCX_FLAG_BAYER 0x0008
+
+
+/* IOCTL definitions */
+
+ /* Restore user settings */
+#define VIDIOCPWCRUSER _IO('v', 192)
+ /* Save user settings */
+#define VIDIOCPWCSUSER _IO('v', 193)
+ /* Restore factory settings */
+#define VIDIOCPWCFACTORY _IO('v', 194)
+
+ /* You can manipulate the compression factor. A compression preference of 0
+ means use uncompressed modes when available; 1 is low compression, 2 is
+ medium and 3 is high compression preferred. Of course, the higher the
+ compression, the lower the bandwidth used but more chance of artefacts
+ in the image. The driver automatically chooses a higher compression when
+ the preferred mode is not available.
+ */
+ /* Set preferred compression quality (0 = uncompressed, 3 = highest compression) */
+#define VIDIOCPWCSCQUAL _IOW('v', 195, int)
+ /* Get preferred compression quality */
+#define VIDIOCPWCGCQUAL _IOR('v', 195, int)
+
+
+/* Retrieve serial number of camera */
+#define VIDIOCPWCGSERIAL _IOR('v', 198, struct pwc_serial)
+
+ /* This is a probe function; since so many devices are supported, it
+ becomes difficult to include all the names in programs that want to
+ check for the enhanced Philips stuff. So in stead, try this PROBE;
+ it returns a structure with the original name, and the corresponding
+ Philips type.
+ To use, fill the structure with zeroes, call PROBE and if that succeeds,
+ compare the name with that returned from VIDIOCGCAP; they should be the
+ same. If so, you can be assured it is a Philips (OEM) cam and the type
+ is valid.
+ */
+#define VIDIOCPWCPROBE _IOR('v', 199, struct pwc_probe)
+
+ /* Set AGC (Automatic Gain Control); int < 0 = auto, 0..65535 = fixed */
+#define VIDIOCPWCSAGC _IOW('v', 200, int)
+ /* Get AGC; int < 0 = auto; >= 0 = fixed, range 0..65535 */
+#define VIDIOCPWCGAGC _IOR('v', 200, int)
+ /* Set shutter speed; int < 0 = auto; >= 0 = fixed, range 0..65535 */
+#define VIDIOCPWCSSHUTTER _IOW('v', 201, int)
+
+ /* Color compensation (Auto White Balance) */
+#define VIDIOCPWCSAWB _IOW('v', 202, struct pwc_whitebalance)
+#define VIDIOCPWCGAWB _IOR('v', 202, struct pwc_whitebalance)
+
+ /* Auto WB speed */
+#define VIDIOCPWCSAWBSPEED _IOW('v', 203, struct pwc_wb_speed)
+#define VIDIOCPWCGAWBSPEED _IOR('v', 203, struct pwc_wb_speed)
+
+ /* LEDs on/off/blink; int range 0..65535 */
+#define VIDIOCPWCSLED _IOW('v', 205, struct pwc_leds)
+#define VIDIOCPWCGLED _IOR('v', 205, struct pwc_leds)
+
+ /* Contour (sharpness); int < 0 = auto, 0..65536 = fixed */
+#define VIDIOCPWCSCONTOUR _IOW('v', 206, int)
+#define VIDIOCPWCGCONTOUR _IOR('v', 206, int)
+
+ /* Backlight compensation; 0 = off, otherwise on */
+#define VIDIOCPWCSBACKLIGHT _IOW('v', 207, int)
+#define VIDIOCPWCGBACKLIGHT _IOR('v', 207, int)
+
+ /* Flickerless mode; = 0 off, otherwise on */
+#define VIDIOCPWCSFLICKER _IOW('v', 208, int)
+#define VIDIOCPWCGFLICKER _IOR('v', 208, int)
+
+ /* Dynamic noise reduction; 0 off, 3 = high noise reduction */
+#define VIDIOCPWCSDYNNOISE _IOW('v', 209, int)
+#define VIDIOCPWCGDYNNOISE _IOR('v', 209, int)
+
+ /* Real image size as used by the camera; tells you whether or not there's a gray border around the image */
+#define VIDIOCPWCGREALSIZE _IOR('v', 210, struct pwc_imagesize)
+
+ /* Motorized pan & tilt functions */
+#define VIDIOCPWCMPTRESET _IOW('v', 211, int)
+#define VIDIOCPWCMPTGRANGE _IOR('v', 211, struct pwc_mpt_range)
+#define VIDIOCPWCMPTSANGLE _IOW('v', 212, struct pwc_mpt_angles)
+#define VIDIOCPWCMPTGANGLE _IOR('v', 212, struct pwc_mpt_angles)
+#define VIDIOCPWCMPTSTATUS _IOR('v', 213, struct pwc_mpt_status)
+
+ /* Get the USB set-video command; needed for initializing libpwcx */
+#define VIDIOCPWCGVIDCMD _IOR('v', 215, struct pwc_video_command)
+struct pwc_table_init_buffer {
+ int len;
+ char *buffer;
+
+};
+#define VIDIOCPWCGVIDTABLE _IOR('v', 216, struct pwc_table_init_buffer)
+
+/*
+ * This is private command used when communicating with v4l2.
+ * In the future all private ioctl will be remove/replace to
+ * use interface offer by v4l2.
+ */
+
+#define V4L2_CID_PRIVATE_SAVE_USER (V4L2_CID_PRIVATE_BASE + 0)
+#define V4L2_CID_PRIVATE_RESTORE_USER (V4L2_CID_PRIVATE_BASE + 1)
+#define V4L2_CID_PRIVATE_RESTORE_FACTORY (V4L2_CID_PRIVATE_BASE + 2)
+#define V4L2_CID_PRIVATE_COLOUR_MODE (V4L2_CID_PRIVATE_BASE + 3)
+#define V4L2_CID_PRIVATE_AUTOCONTOUR (V4L2_CID_PRIVATE_BASE + 4)
+#define V4L2_CID_PRIVATE_CONTOUR (V4L2_CID_PRIVATE_BASE + 5)
+#define V4L2_CID_PRIVATE_BACKLIGHT (V4L2_CID_PRIVATE_BASE + 6)
+#define V4L2_CID_PRIVATE_FLICKERLESS (V4L2_CID_PRIVATE_BASE + 7)
+#define V4L2_CID_PRIVATE_NOISE_REDUCTION (V4L2_CID_PRIVATE_BASE + 8)
+
+struct pwc_raw_frame {
+ __le16 type; /* type of the webcam */
+ __le16 vbandlength; /* Size of 4lines compressed (used by the decompressor) */
+ __u8 cmd[4]; /* the four byte of the command (in case of nala,
+ only the first 3 bytes is filled) */
+ __u8 rawframe[0]; /* frame_size = H/4*vbandlength */
+} __attribute__ ((packed));
+
+
+#endif
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