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
59 /* Enumeration of image sizes */
60 #define PSZ_SQCIF 0x00
61 #define PSZ_QSIF 0x01
62 #define PSZ_QCIF 0x02
63 #define PSZ_SIF 0x03
64 #define PSZ_CIF 0x04
65 #define PSZ_VGA 0x05
66 #define PSZ_MAX 6
67
68
69 /* The frame rate is encoded in the video_window.flags parameter using
70 the upper 16 bits, since some flags are defined nowadays. The following
71 defines provide a mask and shift to filter out this value.
72 This value can also be passing using the private flag when using v4l2 and
73 VIDIOC_S_FMT ioctl.
74
75 In 'Snapshot' mode the camera freezes its automatic exposure and colour
76 balance controls.
77 */
78 #define PWC_FPS_SHIFT 16
79 #define PWC_FPS_MASK 0x00FF0000
80 #define PWC_FPS_FRMASK 0x003F0000
81 #define PWC_FPS_SNAPSHOT 0x00400000
82 #define PWC_QLT_MASK 0x03000000
83 #define PWC_QLT_SHIFT 24
84
85
86 /* structure for transferring x & y coordinates */
87 struct pwc_coord
88 {
89 int x, y; /* guess what */
90 int size; /* size, or offset */
91 };
92
93
94 /* Used with VIDIOCPWCPROBE */
95 struct pwc_probe
96 {
97 char name[32];
98 int type;
99 };
100
101 struct pwc_serial
102 {
103 char serial[30]; /* String with serial number. Contains terminating 0 */
104 };
105
106 /* pwc_whitebalance.mode values */
107 #define PWC_WB_INDOOR 0
108 #define PWC_WB_OUTDOOR 1
109 #define PWC_WB_FL 2
110 #define PWC_WB_MANUAL 3
111 #define PWC_WB_AUTO 4
112
113 /* Used with VIDIOCPWC[SG]AWB (Auto White Balance).
114 Set mode to one of the PWC_WB_* values above.
115 *red and *blue are the respective gains of these colour components inside
116 the camera; range 0..65535
117 When 'mode' == PWC_WB_MANUAL, 'manual_red' and 'manual_blue' are set or read;
118 otherwise undefined.
119 'read_red' and 'read_blue' are read-only.
120 */
121 struct pwc_whitebalance
122 {
123 int mode;
124 int manual_red, manual_blue; /* R/W */
125 int read_red, read_blue; /* R/O */
126 };
127
128 /*
129 'control_speed' and 'control_delay' are used in automatic whitebalance mode,
130 and tell the camera how fast it should react to changes in lighting, and
131 with how much delay. Valid values are 0..65535.
132 */
133 struct pwc_wb_speed
134 {
135 int control_speed;
136 int control_delay;
137
138 };
139
140 /* Used with VIDIOCPWC[SG]LED */
141 struct pwc_leds
142 {
143 int led_on; /* Led on-time; range = 0..25000 */
144 int led_off; /* Led off-time; range = 0..25000 */
145 };
146
147 /* Image size (used with GREALSIZE) */
148 struct pwc_imagesize
149 {
150 int width;
151 int height;
152 };
153
154 /* Defines and structures for Motorized Pan & Tilt */
155 #define PWC_MPT_PAN 0x01
156 #define PWC_MPT_TILT 0x02
157 #define PWC_MPT_TIMEOUT 0x04 /* for status */
158
159 /* Set angles; when absolute != 0, the angle is absolute and the
160 driver calculates the relative offset for you. This can only
161 be used with VIDIOCPWCSANGLE; VIDIOCPWCGANGLE always returns
162 absolute angles.
163 */
164 struct pwc_mpt_angles
165 {
166 int absolute; /* write-only */
167 int pan; /* degrees * 100 */
168 int tilt; /* degress * 100 */
169 };
170
171 /* Range of angles of the camera, both horizontally and vertically.
172 */
173 struct pwc_mpt_range
174 {
175 int pan_min, pan_max; /* degrees * 100 */
176 int tilt_min, tilt_max;
177 };
178
179 struct pwc_mpt_status
180 {
181 int status;
182 int time_pan;
183 int time_tilt;
184 };
185
186
187 /* This is used for out-of-kernel decompression. With it, you can get
188 all the necessary information to initialize and use the decompressor
189 routines in standalone applications.
190 */
191 struct pwc_video_command
192 {
193 int type; /* camera type (645, 675, 730, etc.) */
194 int release; /* release number */
195
196 int size; /* one of PSZ_* */
197 int alternate;
198 int command_len; /* length of USB video command */
199 unsigned char command_buf[13]; /* Actual USB video command */
200 int bandlength; /* >0 = compressed */
201 int frame_size; /* Size of one (un)compressed frame */
202 };
203
204 /* Flags for PWCX subroutines. Not all modules honour all flags. */
205 #define PWCX_FLAG_PLANAR 0x0001
206 #define PWCX_FLAG_BAYER 0x0008
207
208
209 /* IOCTL definitions */
210
211 /* Restore user settings */
212 #define VIDIOCPWCRUSER _IO('v', 192)
213 /* Save user settings */
214 #define VIDIOCPWCSUSER _IO('v', 193)
215 /* Restore factory settings */
216 #define VIDIOCPWCFACTORY _IO('v', 194)
217
218 /* You can manipulate the compression factor. A compression preference of 0
219 means use uncompressed modes when available; 1 is low compression, 2 is
220 medium and 3 is high compression preferred. Of course, the higher the
221 compression, the lower the bandwidth used but more chance of artefacts
222 in the image. The driver automatically chooses a higher compression when
223 the preferred mode is not available.
224 */
225 /* Set preferred compression quality (0 = uncompressed, 3 = highest compression) */
226 #define VIDIOCPWCSCQUAL _IOW('v', 195, int)
227 /* Get preferred compression quality */
228 #define VIDIOCPWCGCQUAL _IOR('v', 195, int)
229
230
231 /* Retrieve serial number of camera */
232 #define VIDIOCPWCGSERIAL _IOR('v', 198, struct pwc_serial)
233
234 /* This is a probe function; since so many devices are supported, it
235 becomes difficult to include all the names in programs that want to
236 check for the enhanced Philips stuff. So in stead, try this PROBE;
237 it returns a structure with the original name, and the corresponding
238 Philips type.
239 To use, fill the structure with zeroes, call PROBE and if that succeeds,
240 compare the name with that returned from VIDIOCGCAP; they should be the
241 same. If so, you can be assured it is a Philips (OEM) cam and the type
242 is valid.
243 */
244 #define VIDIOCPWCPROBE _IOR('v', 199, struct pwc_probe)
245
246 /* Set AGC (Automatic Gain Control); int < 0 = auto, 0..65535 = fixed */
247 #define VIDIOCPWCSAGC _IOW('v', 200, int)
248 /* Get AGC; int < 0 = auto; >= 0 = fixed, range 0..65535 */
249 #define VIDIOCPWCGAGC _IOR('v', 200, int)
250 /* Set shutter speed; int < 0 = auto; >= 0 = fixed, range 0..65535 */
251 #define VIDIOCPWCSSHUTTER _IOW('v', 201, int)
252
253 /* Color compensation (Auto White Balance) */
254 #define VIDIOCPWCSAWB _IOW('v', 202, struct pwc_whitebalance)
255 #define VIDIOCPWCGAWB _IOR('v', 202, struct pwc_whitebalance)
256
257 /* Auto WB speed */
258 #define VIDIOCPWCSAWBSPEED _IOW('v', 203, struct pwc_wb_speed)
259 #define VIDIOCPWCGAWBSPEED _IOR('v', 203, struct pwc_wb_speed)
260
261 /* LEDs on/off/blink; int range 0..65535 */
262 #define VIDIOCPWCSLED _IOW('v', 205, struct pwc_leds)
263 #define VIDIOCPWCGLED _IOR('v', 205, struct pwc_leds)
264
265 /* Contour (sharpness); int < 0 = auto, 0..65536 = fixed */
266 #define VIDIOCPWCSCONTOUR _IOW('v', 206, int)
267 #define VIDIOCPWCGCONTOUR _IOR('v', 206, int)
268
269 /* Backlight compensation; 0 = off, otherwise on */
270 #define VIDIOCPWCSBACKLIGHT _IOW('v', 207, int)
271 #define VIDIOCPWCGBACKLIGHT _IOR('v', 207, int)
272
273 /* Flickerless mode; = 0 off, otherwise on */
274 #define VIDIOCPWCSFLICKER _IOW('v', 208, int)
275 #define VIDIOCPWCGFLICKER _IOR('v', 208, int)
276
277 /* Dynamic noise reduction; 0 off, 3 = high noise reduction */
278 #define VIDIOCPWCSDYNNOISE _IOW('v', 209, int)
279 #define VIDIOCPWCGDYNNOISE _IOR('v', 209, int)
280
281 /* Real image size as used by the camera; tells you whether or not there's a gray border around the image */
282 #define VIDIOCPWCGREALSIZE _IOR('v', 210, struct pwc_imagesize)
283
284 /* Motorized pan & tilt functions */
285 #define VIDIOCPWCMPTRESET _IOW('v', 211, int)
286 #define VIDIOCPWCMPTGRANGE _IOR('v', 211, struct pwc_mpt_range)
287 #define VIDIOCPWCMPTSANGLE _IOW('v', 212, struct pwc_mpt_angles)
288 #define VIDIOCPWCMPTGANGLE _IOR('v', 212, struct pwc_mpt_angles)
289 #define VIDIOCPWCMPTSTATUS _IOR('v', 213, struct pwc_mpt_status)
290
291 /* Get the USB set-video command; needed for initializing libpwcx */
292 #define VIDIOCPWCGVIDCMD _IOR('v', 215, struct pwc_video_command)
293 struct pwc_table_init_buffer {
294 int len;
295 char *buffer;
296
297 };
298 #define VIDIOCPWCGVIDTABLE _IOR('v', 216, struct pwc_table_init_buffer)
299
300 /*
301 * This is private command used when communicating with v4l2.
302 * In the future all private ioctl will be remove/replace to
303 * use interface offer by v4l2.
304 */
305
306 #define V4L2_CID_PRIVATE_SAVE_USER (V4L2_CID_PRIVATE_BASE + 0)
307 #define V4L2_CID_PRIVATE_RESTORE_USER (V4L2_CID_PRIVATE_BASE + 1)
308 #define V4L2_CID_PRIVATE_RESTORE_FACTORY (V4L2_CID_PRIVATE_BASE + 2)
309 #define V4L2_CID_PRIVATE_COLOUR_MODE (V4L2_CID_PRIVATE_BASE + 3)
310 #define V4L2_CID_PRIVATE_AUTOCONTOUR (V4L2_CID_PRIVATE_BASE + 4)
311 #define V4L2_CID_PRIVATE_CONTOUR (V4L2_CID_PRIVATE_BASE + 5)
312 #define V4L2_CID_PRIVATE_BACKLIGHT (V4L2_CID_PRIVATE_BASE + 6)
313 #define V4L2_CID_PRIVATE_FLICKERLESS (V4L2_CID_PRIVATE_BASE + 7)
314 #define V4L2_CID_PRIVATE_NOISE_REDUCTION (V4L2_CID_PRIVATE_BASE + 8)
315
316 struct pwc_raw_frame {
317 __le16 type; /* type of the webcam */
318 __le16 vbandlength; /* Size of 4lines compressed (used by the decompressor) */
319 __u8 cmd[4]; /* the four byte of the command (in case of nala,
320 only the first 3 bytes is filled) */
321 __u8 rawframe[0]; /* frame_size = H/4*vbandlength */
322 } __attribute__ ((packed));
323
324
325 #endif
326
|
This page was automatically generated by the
LXR engine.
|