1#ifndef PWC_IOCTL_H 2#define PWC_IOCTL_H 3 4/* (C) 2001-2004 Nemosoft Unv. 5 (C) 2004-2006 Luc Saillard (luc@saillard.org) 6 7 NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx 8 driver and thus may have bugs that are not present in the original version. 9 Please send bug reports and support requests to <luc@saillard.org>. 10 The decompression routines have been implemented by reverse-engineering the 11 Nemosoft binary pwcx module. Caveat emptor. 12 13 This program is free software; you can redistribute it and/or modify 14 it under the terms of the GNU General Public License as published by 15 the Free Software Foundation; either version 2 of the License, or 16 (at your option) any later version. 17 18 This program is distributed in the hope that it will be useful, 19 but WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 GNU General Public License for more details. 22 23 You should have received a copy of the GNU General Public License 24 along with this program; if not, write to the Free Software 25 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 26*/ 27 28/* This is pwc-ioctl.h belonging to PWC 10.0.10 29 It contains structures and defines to communicate from user space 30 directly to the driver. 31 */ 32 33/* 34 Changes 35 2001/08/03 Alvarado Added ioctl constants to access methods for 36 changing white balance and red/blue gains 37 2002/12/15 G. H. Fernandez-Toribio VIDIOCGREALSIZE 38 2003/12/13 Nemosft Unv. Some modifications to make interfacing to 39 PWCX easier 40 2006/01/01 Luc Saillard Add raw format definition 41 */ 42 43/* These are private ioctl() commands, specific for the Philips webcams. 44 They contain functions not found in other webcams, and settings not 45 specified in the Video4Linux API. 46 47 The #define names are built up like follows: 48 VIDIOC VIDeo IOCtl prefix 49 PWC Philps WebCam 50 G optional: Get 51 S optional: Set 52 ... the function 53 */ 54 55#include <linux/types.h> 56#include <linux/version.h> 57 58/* Enumeration of image sizes */ 59#define PSZ_SQCIF 0x00 60#define PSZ_QSIF 0x01 61#define PSZ_QCIF 0x02 62#define PSZ_SIF 0x03 63#define PSZ_CIF 0x04 64#define PSZ_VGA 0x05 65#define PSZ_MAX 6 66 67 68/* The frame rate is encoded in the video_window.flags parameter using 69 the upper 16 bits, since some flags are defined nowadays. The following 70 defines provide a mask and shift to filter out this value. 71 This value can also be passing using the private flag when using v4l2 and 72 VIDIOC_S_FMT ioctl. 73 74 In 'Snapshot' mode the camera freezes its automatic exposure and colour 75 balance controls. 76 */ 77#define PWC_FPS_SHIFT 16 78#define PWC_FPS_MASK 0x00FF0000 79#define PWC_FPS_FRMASK 0x003F0000 80#define PWC_FPS_SNAPSHOT 0x00400000 81#define PWC_QLT_MASK 0x03000000 82#define PWC_QLT_SHIFT 24 83 84 85/* structure for transferring x & y coordinates */ 86struct pwc_coord 87{ 88 int x, y; /* guess what */ 89 int size; /* size, or offset */ 90}; 91 92 93/* Used with VIDIOCPWCPROBE */ 94struct pwc_probe 95{ 96 char name[32]; 97 int type; 98}; 99 100struct pwc_serial 101{ 102 char serial[30]; /* String with serial number. Contains terminating 0 */ 103}; 104 105/* pwc_whitebalance.mode values */ 106#define PWC_WB_INDOOR 0 107#define PWC_WB_OUTDOOR 1 108#define PWC_WB_FL 2 109#define PWC_WB_MANUAL 3 110#define PWC_WB_AUTO 4 111 112/* Used with VIDIOCPWC[SG]AWB (Auto White Balance). 113 Set mode to one of the PWC_WB_* values above. 114 *red and *blue are the respective gains of these colour components inside 115 the camera; range 0..65535 116 When 'mode' == PWC_WB_MANUAL, 'manual_red' and 'manual_blue' are set or read; 117 otherwise undefined. 118 'read_red' and 'read_blue' are read-only. 119*/ 120struct pwc_whitebalance 121{ 122 int mode; 123 int manual_red, manual_blue; /* R/W */ 124 int read_red, read_blue; /* R/O */ 125}; 126 127/* 128 'control_speed' and 'control_delay' are used in automatic whitebalance mode, 129 and tell the camera how fast it should react to changes in lighting, and 130 with how much delay. Valid values are 0..65535. 131*/ 132struct pwc_wb_speed 133{ 134 int control_speed; 135 int control_delay; 136 137}; 138 139/* Used with VIDIOCPWC[SG]LED */ 140struct pwc_leds 141{ 142 int led_on; /* Led on-time; range = 0..25000 */ 143 int led_off; /* Led off-time; range = 0..25000 */ 144}; 145 146/* Image size (used with GREALSIZE) */ 147struct pwc_imagesize 148{ 149 int width; 150 int height; 151}; 152 153/* Defines and structures for Motorized Pan & Tilt */ 154#define PWC_MPT_PAN 0x01 155#define PWC_MPT_TILT 0x02 156#define PWC_MPT_TIMEOUT 0x04 /* for status */ 157 158/* Set angles; when absolute != 0, the angle is absolute and the 159 driver calculates the relative offset for you. This can only 160 be used with VIDIOCPWCSANGLE; VIDIOCPWCGANGLE always returns 161 absolute angles. 162 */ 163struct pwc_mpt_angles 164{ 165 int absolute; /* write-only */ 166 int pan; /* degrees * 100 */ 167 int tilt; /* degress * 100 */ 168}; 169 170/* Range of angles of the camera, both horizontally and vertically. 171 */ 172struct pwc_mpt_range 173{ 174 int pan_min, pan_max; /* degrees * 100 */ 175 int tilt_min, tilt_max; 176}; 177 178struct pwc_mpt_status 179{ 180 int status; 181 int time_pan; 182 int time_tilt; 183}; 184 185 186/* This is used for out-of-kernel decompression. With it, you can get 187 all the necessary information to initialize and use the decompressor 188 routines in standalone applications. 189 */ 190struct pwc_video_command 191{ 192 int type; /* camera type (645, 675, 730, etc.) */ 193 int release; /* release number */ 194 195 int size; /* one of PSZ_* */ 196 int alternate; 197 int command_len; /* length of USB video command */ 198 unsigned char command_buf[13]; /* Actual USB video command */ 199 int bandlength; /* >0 = compressed */ 200 int frame_size; /* Size of one (un)compressed frame */ 201}; 202 203/* Flags for PWCX subroutines. Not all modules honour all flags. */ 204#define PWCX_FLAG_PLANAR 0x0001 205#define PWCX_FLAG_BAYER 0x0008 206 207 208/* IOCTL definitions */ 209 210 /* Restore user settings */ 211#define VIDIOCPWCRUSER _IO('v', 192) 212 /* Save user settings */ 213#define VIDIOCPWCSUSER _IO('v', 193) 214 /* Restore factory settings */ 215#define VIDIOCPWCFACTORY _IO('v', 194) 216 217 /* You can manipulate the compression factor. A compression preference of 0 218 means use uncompressed modes when available; 1 is low compression, 2 is 219 medium and 3 is high compression preferred. Of course, the higher the 220 compression, the lower the bandwidth used but more chance of artefacts 221 in the image. The driver automatically chooses a higher compression when 222 the preferred mode is not available. 223 */ 224 /* Set preferred compression quality (0 = uncompressed, 3 = highest compression) */ 225#define VIDIOCPWCSCQUAL _IOW('v', 195, int) 226 /* Get preferred compression quality */ 227#define VIDIOCPWCGCQUAL _IOR('v', 195, int) 228 229 230/* Retrieve serial number of camera */ 231#define VIDIOCPWCGSERIAL _IOR('v', 198, struct pwc_serial) 232 233 /* This is a probe function; since so many devices are supported, it 234 becomes difficult to include all the names in programs that want to 235 check for the enhanced Philips stuff. So in stead, try this PROBE; 236 it returns a structure with the original name, and the corresponding 237 Philips type. 238 To use, fill the structure with zeroes, call PROBE and if that succeeds, 239 compare the name with that returned from VIDIOCGCAP; they should be the 240 same. If so, you can be assured it is a Philips (OEM) cam and the type 241 is valid. 242 */ 243#define VIDIOCPWCPROBE _IOR('v', 199, struct pwc_probe) 244 245 /* Set AGC (Automatic Gain Control); int < 0 = auto, 0..65535 = fixed */ 246#define VIDIOCPWCSAGC _IOW('v', 200, int) 247 /* Get AGC; int < 0 = auto; >= 0 = fixed, range 0..65535 */ 248#define VIDIOCPWCGAGC _IOR('v', 200, int) 249 /* Set shutter speed; int < 0 = auto; >= 0 = fixed, range 0..65535 */ 250#define VIDIOCPWCSSHUTTER _IOW('v', 201, int) 251 252 /* Color compensation (Auto White Balance) */ 253#define VIDIOCPWCSAWB _IOW('v', 202, struct pwc_whitebalance) 254#define VIDIOCPWCGAWB _IOR('v', 202, struct pwc_whitebalance) 255 256 /* Auto WB speed */ 257#define VIDIOCPWCSAWBSPEED _IOW('v', 203, struct pwc_wb_speed) 258#define VIDIOCPWCGAWBSPEED _IOR('v', 203, struct pwc_wb_speed) 259 260 /* LEDs on/off/blink; int range 0..65535 */ 261#define VIDIOCPWCSLED _IOW('v', 205, struct pwc_leds) 262#define VIDIOCPWCGLED _IOR('v', 205, struct pwc_leds) 263 264 /* Contour (sharpness); int < 0 = auto, 0..65536 = fixed */ 265#define VIDIOCPWCSCONTOUR _IOW('v', 206, int) 266#define VIDIOCPWCGCONTOUR _IOR('v', 206, int) 267 268 /* Backlight compensation; 0 = off, otherwise on */ 269#define VIDIOCPWCSBACKLIGHT _IOW('v', 207, int) 270#define VIDIOCPWCGBACKLIGHT _IOR('v', 207, int) 271 272 /* Flickerless mode; = 0 off, otherwise on */ 273#define VIDIOCPWCSFLICKER _IOW('v', 208, int) 274#define VIDIOCPWCGFLICKER _IOR('v', 208, int) 275 276 /* Dynamic noise reduction; 0 off, 3 = high noise reduction */ 277#define VIDIOCPWCSDYNNOISE _IOW('v', 209, int) 278#define VIDIOCPWCGDYNNOISE _IOR('v', 209, int) 279 280 /* Real image size as used by the camera; tells you whether or not there's a gray border around the image */ 281#define VIDIOCPWCGREALSIZE _IOR('v', 210, struct pwc_imagesize) 282 283 /* Motorized pan & tilt functions */ 284#define VIDIOCPWCMPTRESET _IOW('v', 211, int) 285#define VIDIOCPWCMPTGRANGE _IOR('v', 211, struct pwc_mpt_range) 286#define VIDIOCPWCMPTSANGLE _IOW('v', 212, struct pwc_mpt_angles) 287#define VIDIOCPWCMPTGANGLE _IOR('v', 212, struct pwc_mpt_angles) 288#define VIDIOCPWCMPTSTATUS _IOR('v', 213, struct pwc_mpt_status) 289 290 /* Get the USB set-video command; needed for initializing libpwcx */ 291#define VIDIOCPWCGVIDCMD _IOR('v', 215, struct pwc_video_command) 292struct pwc_table_init_buffer { 293 int len; 294 char *buffer; 295 296}; 297#define VIDIOCPWCGVIDTABLE _IOR('v', 216, struct pwc_table_init_buffer) 298 299/* 300 * This is private command used when communicating with v4l2. 301 * In the future all private ioctl will be remove/replace to 302 * use interface offer by v4l2. 303 */ 304 305#define V4L2_CID_PRIVATE_SAVE_USER (V4L2_CID_PRIVATE_BASE + 0) 306#define V4L2_CID_PRIVATE_RESTORE_USER (V4L2_CID_PRIVATE_BASE + 1) 307#define V4L2_CID_PRIVATE_RESTORE_FACTORY (V4L2_CID_PRIVATE_BASE + 2) 308#define V4L2_CID_PRIVATE_COLOUR_MODE (V4L2_CID_PRIVATE_BASE + 3) 309#define V4L2_CID_PRIVATE_AUTOCONTOUR (V4L2_CID_PRIVATE_BASE + 4) 310#define V4L2_CID_PRIVATE_CONTOUR (V4L2_CID_PRIVATE_BASE + 5) 311#define V4L2_CID_PRIVATE_BACKLIGHT (V4L2_CID_PRIVATE_BASE + 6) 312#define V4L2_CID_PRIVATE_FLICKERLESS (V4L2_CID_PRIVATE_BASE + 7) 313#define V4L2_CID_PRIVATE_NOISE_REDUCTION (V4L2_CID_PRIVATE_BASE + 8) 314 315struct pwc_raw_frame { 316 __le16 type; /* type of the webcam */ 317 __le16 vbandlength; /* Size of 4lines compressed (used by the decompressor) */ 318 __u8 cmd[4]; /* the four byte of the command (in case of nala, 319 only the first 3 bytes is filled) */ 320 __u8 rawframe[0]; /* frame_size = H/4*vbandlength */ 321} __attribute__ ((packed)); 322 323 324#endif 325