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 */
86 struct pwc_coord
87 {
88 int x, y; /* guess what */
89 int size; /* size, or offset */
90 };
91
92
93 /* Used with VIDIOCPWCPROBE */
94 struct pwc_probe
95 {
96 char name[32];
97 int type;
98 };
99
100 struct 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 */
120 struct 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 */
132 struct pwc_wb_speed
133 {
134 int control_speed;
135 int control_delay;
136
137 };
138
139 /* Used with VIDIOCPWC[SG]LED */
140 struct 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) */
147 struct 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 */
163 struct 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 */
172 struct pwc_mpt_range
173 {
174 int pan_min, pan_max; /* degrees * 100 */
175 int tilt_min, tilt_max;
176 };
177
178 struct 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 */
190 struct 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)
292 struct 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
315 struct 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
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