1 /*
2 * USB NB Camera driver
3 */
4
5 #include <linux/kernel.h>
6 #include <linux/sched.h>
7 #include <linux/wrapper.h>
8 #include <linux/module.h>
9 #include <linux/init.h>
10
11 #include "usbvideo.h"
12
13 #define ULTRACAM_VENDOR_ID 0x0461
14 #define ULTRACAM_PRODUCT_ID 0x0813
15
16 #define MAX_CAMERAS 4 /* How many devices we allow to connect */
17
18 /*
19 * This structure lives in uvd->user field.
20 */
21 typedef struct {
22 int initialized; /* Had we already sent init sequence? */
23 int camera_model; /* What type of IBM camera we got? */
24 int has_hdr;
25 } ultracam_t;
26 #define ULTRACAM_T(uvd) ((ultracam_t *)((uvd)->user_data))
27
28 static struct usbvideo *cams = NULL;
29
30 static int debug = 0;
31
32 static int flags = 0; /* FLAGS_DISPLAY_HINTS | FLAGS_OVERLAY_STATS; */
33
34 static const int min_canvasWidth = 8;
35 static const int min_canvasHeight = 4;
36
37 //static int lighting = 1; /* Medium */
38
39 #define SHARPNESS_MIN 0
40 #define SHARPNESS_MAX 6
41 //static int sharpness = 4; /* Low noise, good details */
42
43 #define FRAMERATE_MIN 0
44 #define FRAMERATE_MAX 6
45 static int framerate = -1;
46
47 /*
48 * Here we define several initialization variables. They may
49 * be used to automatically set color, hue, brightness and
50 * contrast to desired values. This is particularly useful in
51 * case of webcams (which have no controls and no on-screen
52 * output) and also when a client V4L software is used that
53 * does not have some of those controls. In any case it's
54 * good to have startup values as options.
55 *
56 * These values are all in [0..255] range. This simplifies
57 * operation. Note that actual values of V4L variables may
58 * be scaled up (as much as << 8). User can see that only
59 * on overlay output, however, or through a V4L client.
60 */
61 static int init_brightness = 128;
62 static int init_contrast = 192;
63 static int init_color = 128;
64 static int init_hue = 128;
65 static int hue_correction = 128;
66
67 MODULE_PARM(debug, "i");
68 MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
69 MODULE_PARM(flags, "i");
70 MODULE_PARM_DESC(flags,
71 "Bitfield: 0=VIDIOCSYNC, "
72 "1=B/W, "
73 "2=show hints, "
74 "3=show stats, "
75 "4=test pattern, "
76 "5=separate frames, "
77 "6=clean frames");
78 MODULE_PARM(framerate, "i");
79 MODULE_PARM_DESC(framerate, "Framerate setting: 0=slowest, 6=fastest (default=2)");
80 MODULE_PARM(lighting, "i");
81 MODULE_PARM_DESC(lighting, "Photosensitivity: 0=bright, 1=medium (default), 2=low light");
82 MODULE_PARM(sharpness, "i");
83 MODULE_PARM_DESC(sharpness, "Model1 noise reduction: 0=smooth, 6=sharp (default=4)");
84
85 MODULE_PARM(init_brightness, "i");
86 MODULE_PARM_DESC(init_brightness, "Brightness preconfiguration: 0-255 (default=128)");
87 MODULE_PARM(init_contrast, "i");
88 MODULE_PARM_DESC(init_contrast, "Contrast preconfiguration: 0-255 (default=192)");
89 MODULE_PARM(init_color, "i");
90 MODULE_PARM_DESC(init_color, "Color preconfiguration: 0-255 (default=128)");
91 MODULE_PARM(init_hue, "i");
92 MODULE_PARM_DESC(init_hue, "Hue preconfiguration: 0-255 (default=128)");
93 MODULE_PARM(hue_correction, "i");
94 MODULE_PARM_DESC(hue_correction, "YUV colorspace regulation: 0-255 (default=128)");
95
96 /*
97 * ultracam_ProcessIsocData()
98 *
99 * Generic routine to parse the ring queue data. It employs either
100 * ultracam_find_header() or ultracam_parse_lines() to do most
101 * of work.
102 *
103 * 02-Nov-2000 First (mostly dummy) version.
104 * 06-Nov-2000 Rewrote to dump all data into frame.
105 */
ultracam_ProcessIsocData(struct uvd * uvd,struct usbvideo_frame * frame)106 void ultracam_ProcessIsocData(struct uvd *uvd, struct usbvideo_frame *frame)
107 {
108 int n;
109
110 assert(uvd != NULL);
111 assert(frame != NULL);
112
113 /* Try to move data from queue into frame buffer */
114 n = RingQueue_GetLength(&uvd->dp);
115 if (n > 0) {
116 int m;
117 /* See how much spare we have left */
118 m = uvd->max_frame_size - frame->seqRead_Length;
119 if (n > m)
120 n = m;
121 /* Now move that much data into frame buffer */
122 RingQueue_Dequeue(
123 &uvd->dp,
124 frame->data + frame->seqRead_Length,
125 m);
126 frame->seqRead_Length += m;
127 }
128 /* See if we filled the frame */
129 if (frame->seqRead_Length >= uvd->max_frame_size) {
130 frame->frameState = FrameState_Done;
131 uvd->curframe = -1;
132 uvd->stats.frame_num++;
133 }
134 }
135
136 /*
137 * ultracam_veio()
138 *
139 * History:
140 * 1/27/00 Added check for dev == NULL; this happens if camera is unplugged.
141 */
ultracam_veio(struct uvd * uvd,unsigned char req,unsigned short value,unsigned short index,int is_out)142 static int ultracam_veio(
143 struct uvd *uvd,
144 unsigned char req,
145 unsigned short value,
146 unsigned short index,
147 int is_out)
148 {
149 static const char proc[] = "ultracam_veio";
150 unsigned char cp[8] /* = { 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef } */;
151 int i;
152
153 if (!CAMERA_IS_OPERATIONAL(uvd))
154 return 0;
155
156 if (!is_out) {
157 i = usb_control_msg(
158 uvd->dev,
159 usb_rcvctrlpipe(uvd->dev, 0),
160 req,
161 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
162 value,
163 index,
164 cp,
165 sizeof(cp),
166 HZ);
167 #if 1
168 info("USB => %02x%02x%02x%02x%02x%02x%02x%02x "
169 "(req=$%02x val=$%04x ind=$%04x)",
170 cp[0],cp[1],cp[2],cp[3],cp[4],cp[5],cp[6],cp[7],
171 req, value, index);
172 #endif
173 } else {
174 i = usb_control_msg(
175 uvd->dev,
176 usb_sndctrlpipe(uvd->dev, 0),
177 req,
178 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
179 value,
180 index,
181 NULL,
182 0,
183 HZ);
184 }
185 if (i < 0) {
186 err("%s: ERROR=%d. Camera stopped; Reconnect or reload driver.",
187 proc, i);
188 uvd->last_error = i;
189 }
190 return i;
191 }
192
193 /*
194 * ultracam_calculate_fps()
195 */
ultracam_calculate_fps(struct uvd * uvd)196 static int ultracam_calculate_fps(struct uvd *uvd)
197 {
198 return 3 + framerate*4 + framerate/2;
199 }
200
201 /*
202 * ultracam_adjust_contrast()
203 */
ultracam_adjust_contrast(struct uvd * uvd)204 static void ultracam_adjust_contrast(struct uvd *uvd)
205 {
206 }
207
208 /*
209 * ultracam_change_lighting_conditions()
210 */
ultracam_change_lighting_conditions(struct uvd * uvd)211 static void ultracam_change_lighting_conditions(struct uvd *uvd)
212 {
213 }
214
215 /*
216 * ultracam_set_sharpness()
217 *
218 * Cameras model 1 have internal smoothing feature. It is controlled by value in
219 * range [0..6], where 0 is most smooth and 6 is most sharp (raw image, I guess).
220 * Recommended value is 4. Cameras model 2 do not have this feature at all.
221 */
ultracam_set_sharpness(struct uvd * uvd)222 static void ultracam_set_sharpness(struct uvd *uvd)
223 {
224 }
225
226 /*
227 * ultracam_set_brightness()
228 *
229 * This procedure changes brightness of the picture.
230 */
ultracam_set_brightness(struct uvd * uvd)231 static void ultracam_set_brightness(struct uvd *uvd)
232 {
233 }
234
ultracam_set_hue(struct uvd * uvd)235 static void ultracam_set_hue(struct uvd *uvd)
236 {
237 }
238
239 /*
240 * ultracam_adjust_picture()
241 *
242 * This procedure gets called from V4L interface to update picture settings.
243 * Here we change brightness and contrast.
244 */
ultracam_adjust_picture(struct uvd * uvd)245 static void ultracam_adjust_picture(struct uvd *uvd)
246 {
247 ultracam_adjust_contrast(uvd);
248 ultracam_set_brightness(uvd);
249 ultracam_set_hue(uvd);
250 }
251
252 /*
253 * ultracam_video_stop()
254 *
255 * This code tells camera to stop streaming. The interface remains
256 * configured and bandwidth - claimed.
257 */
ultracam_video_stop(struct uvd * uvd)258 static void ultracam_video_stop(struct uvd *uvd)
259 {
260 }
261
262 /*
263 * ultracam_reinit_iso()
264 *
265 * This procedure sends couple of commands to the camera and then
266 * resets the video pipe. This sequence was observed to reinit the
267 * camera or, at least, to initiate ISO data stream.
268 */
ultracam_reinit_iso(struct uvd * uvd,int do_stop)269 static void ultracam_reinit_iso(struct uvd *uvd, int do_stop)
270 {
271 }
272
ultracam_video_start(struct uvd * uvd)273 static void ultracam_video_start(struct uvd *uvd)
274 {
275 ultracam_change_lighting_conditions(uvd);
276 ultracam_set_sharpness(uvd);
277 ultracam_reinit_iso(uvd, 0);
278 }
279
ultracam_resetPipe(struct uvd * uvd)280 static int ultracam_resetPipe(struct uvd *uvd)
281 {
282 usb_clear_halt(uvd->dev, uvd->video_endp);
283 return 0;
284 }
285
ultracam_alternateSetting(struct uvd * uvd,int setting)286 static int ultracam_alternateSetting(struct uvd *uvd, int setting)
287 {
288 static const char proc[] = "ultracam_alternateSetting";
289 int i;
290 i = usb_set_interface(uvd->dev, uvd->iface, setting);
291 if (i < 0) {
292 err("%s: usb_set_interface error", proc);
293 uvd->last_error = i;
294 return -EBUSY;
295 }
296 return 0;
297 }
298
299 /*
300 * Return negative code on failure, 0 on success.
301 */
ultracam_setup_on_open(struct uvd * uvd)302 static int ultracam_setup_on_open(struct uvd *uvd)
303 {
304 int setup_ok = 0; /* Success by default */
305 /* Send init sequence only once, it's large! */
306 if (!ULTRACAM_T(uvd)->initialized) {
307 ultracam_alternateSetting(uvd, 0x04);
308 ultracam_alternateSetting(uvd, 0x00);
309 ultracam_veio(uvd, 0x02, 0x0004, 0x000b, 1);
310 ultracam_veio(uvd, 0x02, 0x0001, 0x0005, 1);
311 ultracam_veio(uvd, 0x02, 0x8000, 0x0000, 1);
312 ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
313 ultracam_veio(uvd, 0x00, 0x00b0, 0x0001, 1);
314 ultracam_veio(uvd, 0x00, 0x0000, 0x0002, 1);
315 ultracam_veio(uvd, 0x00, 0x000c, 0x0003, 1);
316 ultracam_veio(uvd, 0x00, 0x000b, 0x0004, 1);
317 ultracam_veio(uvd, 0x00, 0x0000, 0x0005, 1);
318 ultracam_veio(uvd, 0x00, 0x0000, 0x0006, 1);
319 ultracam_veio(uvd, 0x00, 0x0079, 0x0007, 1);
320 ultracam_veio(uvd, 0x00, 0x003b, 0x0008, 1);
321 ultracam_veio(uvd, 0x00, 0x0002, 0x000f, 1);
322 ultracam_veio(uvd, 0x00, 0x0001, 0x0010, 1);
323 ultracam_veio(uvd, 0x00, 0x0000, 0x0011, 1);
324 ultracam_veio(uvd, 0x00, 0x0000, 0x00bf, 1);
325 ultracam_veio(uvd, 0x00, 0x0001, 0x00c0, 1);
326 ultracam_veio(uvd, 0x00, 0x0010, 0x00cb, 1);
327 ultracam_veio(uvd, 0x01, 0x00a4, 0x0001, 1);
328 ultracam_veio(uvd, 0x01, 0x0010, 0x0002, 1);
329 ultracam_veio(uvd, 0x01, 0x0066, 0x0007, 1);
330 ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
331 ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
332 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
333 ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
334 ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
335 ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
336 ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
337 ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
338 ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
339 ultracam_veio(uvd, 0x01, 0x000b, 0x0011, 1);
340 ultracam_veio(uvd, 0x01, 0x0001, 0x0012, 1);
341 ultracam_veio(uvd, 0x01, 0x0000, 0x0013, 1);
342 ultracam_veio(uvd, 0x01, 0x0000, 0x0014, 1);
343 ultracam_veio(uvd, 0x01, 0x0087, 0x0051, 1);
344 ultracam_veio(uvd, 0x01, 0x0040, 0x0052, 1);
345 ultracam_veio(uvd, 0x01, 0x0058, 0x0053, 1);
346 ultracam_veio(uvd, 0x01, 0x0040, 0x0054, 1);
347 ultracam_veio(uvd, 0x01, 0x0000, 0x0040, 1);
348 ultracam_veio(uvd, 0x01, 0x0010, 0x0041, 1);
349 ultracam_veio(uvd, 0x01, 0x0020, 0x0042, 1);
350 ultracam_veio(uvd, 0x01, 0x0030, 0x0043, 1);
351 ultracam_veio(uvd, 0x01, 0x0040, 0x0044, 1);
352 ultracam_veio(uvd, 0x01, 0x0050, 0x0045, 1);
353 ultracam_veio(uvd, 0x01, 0x0060, 0x0046, 1);
354 ultracam_veio(uvd, 0x01, 0x0070, 0x0047, 1);
355 ultracam_veio(uvd, 0x01, 0x0080, 0x0048, 1);
356 ultracam_veio(uvd, 0x01, 0x0090, 0x0049, 1);
357 ultracam_veio(uvd, 0x01, 0x00a0, 0x004a, 1);
358 ultracam_veio(uvd, 0x01, 0x00b0, 0x004b, 1);
359 ultracam_veio(uvd, 0x01, 0x00c0, 0x004c, 1);
360 ultracam_veio(uvd, 0x01, 0x00d0, 0x004d, 1);
361 ultracam_veio(uvd, 0x01, 0x00e0, 0x004e, 1);
362 ultracam_veio(uvd, 0x01, 0x00f0, 0x004f, 1);
363 ultracam_veio(uvd, 0x01, 0x00ff, 0x0050, 1);
364 ultracam_veio(uvd, 0x01, 0x0000, 0x0056, 1);
365 ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
366 ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
367 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
368 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
369 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
370 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
371 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
372 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
373 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
374 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
375 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
376 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
377 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
378 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
379 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
380 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
381 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
382 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
383 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
384 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
385 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
386 ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
387 ultracam_veio(uvd, 0x00, 0x0004, 0x00c2, 1);
388 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
389 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
390 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
391 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
392 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
393 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
394 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
395 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
396 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
397 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
398 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
399 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
400 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
401 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
402 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
403 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
404 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
405 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
406 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
407 ultracam_veio(uvd, 0x00, 0x0002, 0x00c1, 1);
408 ultracam_veio(uvd, 0x00, 0x0020, 0x00c2, 1);
409 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
410 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
411 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
412 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
413 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
414 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
415 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
416 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
417 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
418 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
419 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
420 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
421 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
422 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
423 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
424 ultracam_veio(uvd, 0x00, 0x0040, 0x00c1, 1);
425 ultracam_veio(uvd, 0x00, 0x0017, 0x00c2, 1);
426 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
427 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
428 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
429 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
430 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
431 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
432 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
433 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
434 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
435 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
436 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
437 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
438 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
439 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
440 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
441 ultracam_veio(uvd, 0x00, 0x00c0, 0x00c1, 1);
442 ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
443 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
444 ultracam_veio(uvd, 0x02, 0xc040, 0x0001, 1);
445 ultracam_veio(uvd, 0x01, 0x0000, 0x0008, 0);
446 ultracam_veio(uvd, 0x01, 0x0000, 0x0009, 0);
447 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 0);
448 ultracam_veio(uvd, 0x01, 0x0000, 0x000b, 0);
449 ultracam_veio(uvd, 0x01, 0x0000, 0x000c, 0);
450 ultracam_veio(uvd, 0x01, 0x0000, 0x000d, 0);
451 ultracam_veio(uvd, 0x01, 0x0000, 0x000e, 0);
452 ultracam_veio(uvd, 0x01, 0x0000, 0x000f, 0);
453 ultracam_veio(uvd, 0x01, 0x0000, 0x0010, 0);
454 ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
455 ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
456 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
457 ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
458 ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
459 ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
460 ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
461 ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
462 ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
463 ultracam_veio(uvd, 0x01, 0x0000, 0x0001, 0);
464 ultracam_veio(uvd, 0x01, 0x0064, 0x0001, 1);
465 ultracam_veio(uvd, 0x01, 0x0059, 0x0051, 1);
466 ultracam_veio(uvd, 0x01, 0x003f, 0x0052, 1);
467 ultracam_veio(uvd, 0x01, 0x0094, 0x0053, 1);
468 ultracam_veio(uvd, 0x01, 0x00ff, 0x0011, 1);
469 ultracam_veio(uvd, 0x01, 0x0003, 0x0012, 1);
470 ultracam_veio(uvd, 0x01, 0x00f7, 0x0013, 1);
471 ultracam_veio(uvd, 0x00, 0x0009, 0x0011, 1);
472 ultracam_veio(uvd, 0x00, 0x0000, 0x0001, 1);
473 ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
474 ultracam_veio(uvd, 0x00, 0x0020, 0x00c1, 1);
475 ultracam_veio(uvd, 0x00, 0x0010, 0x00c2, 1);
476 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
477 ultracam_alternateSetting(uvd, 0x04);
478 ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
479 ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
480 ultracam_veio(uvd, 0x02, 0x0000, 0x0006, 1);
481 ultracam_veio(uvd, 0x02, 0x9000, 0x0007, 1);
482 ultracam_veio(uvd, 0x02, 0x0042, 0x0001, 1);
483 ultracam_veio(uvd, 0x02, 0x0000, 0x000b, 0);
484 ultracam_resetPipe(uvd);
485 ULTRACAM_T(uvd)->initialized = (setup_ok != 0);
486 }
487 return setup_ok;
488 }
489
ultracam_configure_video(struct uvd * uvd)490 static void ultracam_configure_video(struct uvd *uvd)
491 {
492 if (uvd == NULL)
493 return;
494
495 RESTRICT_TO_RANGE(init_brightness, 0, 255);
496 RESTRICT_TO_RANGE(init_contrast, 0, 255);
497 RESTRICT_TO_RANGE(init_color, 0, 255);
498 RESTRICT_TO_RANGE(init_hue, 0, 255);
499 RESTRICT_TO_RANGE(hue_correction, 0, 255);
500
501 memset(&uvd->vpic, 0, sizeof(uvd->vpic));
502 memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));
503
504 uvd->vpic.colour = init_color << 8;
505 uvd->vpic.hue = init_hue << 8;
506 uvd->vpic.brightness = init_brightness << 8;
507 uvd->vpic.contrast = init_contrast << 8;
508 uvd->vpic.whiteness = 105 << 8; /* This one isn't used */
509 uvd->vpic.depth = 24;
510 uvd->vpic.palette = VIDEO_PALETTE_RGB24;
511
512 memset(&uvd->vcap, 0, sizeof(uvd->vcap));
513 strcpy(uvd->vcap.name, "IBM Ultra Camera");
514 uvd->vcap.type = VID_TYPE_CAPTURE;
515 uvd->vcap.channels = 1;
516 uvd->vcap.audios = 0;
517 uvd->vcap.maxwidth = VIDEOSIZE_X(uvd->canvas);
518 uvd->vcap.maxheight = VIDEOSIZE_Y(uvd->canvas);
519 uvd->vcap.minwidth = min_canvasWidth;
520 uvd->vcap.minheight = min_canvasHeight;
521
522 memset(&uvd->vchan, 0, sizeof(uvd->vchan));
523 uvd->vchan.flags = 0;
524 uvd->vchan.tuners = 0;
525 uvd->vchan.channel = 0;
526 uvd->vchan.type = VIDEO_TYPE_CAMERA;
527 strcpy(uvd->vchan.name, "Camera");
528 }
529
530 /*
531 * ultracam_probe()
532 *
533 * This procedure queries device descriptor and accepts the interface
534 * if it looks like our camera.
535 *
536 * History:
537 * 12-Nov-2000 Reworked to comply with new probe() signature.
538 * 23-Jan-2001 Added compatibility with 2.2.x kernels.
539 */
ultracam_probe(struct usb_device * dev,unsigned int ifnum,const struct usb_device_id * devid)540 static void *ultracam_probe(struct usb_device *dev, unsigned int ifnum ,const struct usb_device_id *devid)
541 {
542 struct uvd *uvd = NULL;
543 int i, nas;
544 int actInterface=-1, inactInterface=-1, maxPS=0;
545 unsigned char video_ep = 0;
546
547 if (debug >= 1)
548 info("ultracam_probe(%p,%u.)", dev, ifnum);
549
550 /* We don't handle multi-config cameras */
551 if (dev->descriptor.bNumConfigurations != 1)
552 return NULL;
553
554 /* Is it an IBM camera? */
555 if ((dev->descriptor.idVendor != ULTRACAM_VENDOR_ID) ||
556 (dev->descriptor.idProduct != ULTRACAM_PRODUCT_ID))
557 return NULL;
558
559 info("IBM Ultra camera found (rev. 0x%04x)", dev->descriptor.bcdDevice);
560
561 /* Validate found interface: must have one ISO endpoint */
562 nas = dev->actconfig->interface[ifnum].num_altsetting;
563 if (debug > 0)
564 info("Number of alternate settings=%d.", nas);
565 if (nas < 8) {
566 err("Too few alternate settings for this camera!");
567 return NULL;
568 }
569 /* Validate all alternate settings */
570 for (i=0; i < nas; i++) {
571 const struct usb_interface_descriptor *interface;
572 const struct usb_endpoint_descriptor *endpoint;
573
574 interface = &dev->actconfig->interface[ifnum].altsetting[i];
575 if (interface->bNumEndpoints != 1) {
576 err("Interface %d. has %u. endpoints!",
577 ifnum, (unsigned)(interface->bNumEndpoints));
578 return NULL;
579 }
580 endpoint = &interface->endpoint[0];
581 if (video_ep == 0)
582 video_ep = endpoint->bEndpointAddress;
583 else if (video_ep != endpoint->bEndpointAddress) {
584 err("Alternate settings have different endpoint addresses!");
585 return NULL;
586 }
587 if ((endpoint->bmAttributes & 0x03) != 0x01) {
588 err("Interface %d. has non-ISO endpoint!", ifnum);
589 return NULL;
590 }
591 if ((endpoint->bEndpointAddress & 0x80) == 0) {
592 err("Interface %d. has ISO OUT endpoint!", ifnum);
593 return NULL;
594 }
595 if (endpoint->wMaxPacketSize == 0) {
596 if (inactInterface < 0)
597 inactInterface = i;
598 else {
599 err("More than one inactive alt. setting!");
600 return NULL;
601 }
602 } else {
603 if (actInterface < 0) {
604 actInterface = i;
605 maxPS = endpoint->wMaxPacketSize;
606 if (debug > 0)
607 info("Active setting=%d. maxPS=%d.", i, maxPS);
608 } else {
609 /* Got another active alt. setting */
610 if (maxPS < endpoint->wMaxPacketSize) {
611 /* This one is better! */
612 actInterface = i;
613 maxPS = endpoint->wMaxPacketSize;
614 if (debug > 0) {
615 info("Even better ctive setting=%d. maxPS=%d.",
616 i, maxPS);
617 }
618 }
619 }
620 }
621 }
622 if ((maxPS <= 0) || (actInterface < 0) || (inactInterface < 0)) {
623 err("Failed to recognize the camera!");
624 return NULL;
625 }
626
627 /* Code below may sleep, need to lock module while we are here */
628 MOD_INC_USE_COUNT;
629 uvd = usbvideo_AllocateDevice(cams);
630 if (uvd != NULL) {
631 /* Here uvd is a fully allocated uvd object */
632 uvd->flags = flags;
633 uvd->debug = debug;
634 uvd->dev = dev;
635 uvd->iface = ifnum;
636 uvd->ifaceAltInactive = inactInterface;
637 uvd->ifaceAltActive = actInterface;
638 uvd->video_endp = video_ep;
639 uvd->iso_packet_len = maxPS;
640 uvd->paletteBits = 1L << VIDEO_PALETTE_RGB24;
641 uvd->defaultPalette = VIDEO_PALETTE_RGB24;
642 uvd->canvas = VIDEOSIZE(640, 480); /* FIXME */
643 uvd->videosize = uvd->canvas; /* ultracam_size_to_videosize(size);*/
644
645 /* Initialize ibmcam-specific data */
646 assert(ULTRACAM_T(uvd) != NULL);
647 ULTRACAM_T(uvd)->camera_model = 0; /* Not used yet */
648 ULTRACAM_T(uvd)->initialized = 0;
649
650 ultracam_configure_video(uvd);
651
652 i = usbvideo_RegisterVideoDevice(uvd);
653 if (i != 0) {
654 err("usbvideo_RegisterVideoDevice() failed.");
655 uvd = NULL;
656 }
657 }
658 MOD_DEC_USE_COUNT;
659 return uvd;
660 }
661
662
663 static struct usb_device_id id_table[] = {
664 { USB_DEVICE(ULTRACAM_VENDOR_ID, ULTRACAM_PRODUCT_ID) },
665 { } /* Terminating entry */
666 };
667
668 /*
669 * ultracam_init()
670 *
671 * This code is run to initialize the driver.
672 */
ultracam_init(void)673 static int __init ultracam_init(void)
674 {
675 struct usbvideo_cb cbTbl;
676 memset(&cbTbl, 0, sizeof(cbTbl));
677 cbTbl.probe = ultracam_probe;
678 cbTbl.setupOnOpen = ultracam_setup_on_open;
679 cbTbl.videoStart = ultracam_video_start;
680 cbTbl.videoStop = ultracam_video_stop;
681 cbTbl.processData = ultracam_ProcessIsocData;
682 cbTbl.postProcess = usbvideo_DeinterlaceFrame;
683 cbTbl.adjustPicture = ultracam_adjust_picture;
684 cbTbl.getFPS = ultracam_calculate_fps;
685 return usbvideo_register(
686 &cams,
687 MAX_CAMERAS,
688 sizeof(ultracam_t),
689 "ultracam",
690 &cbTbl,
691 THIS_MODULE,
692 id_table);
693 }
694
ultracam_cleanup(void)695 static void __exit ultracam_cleanup(void)
696 {
697 usbvideo_Deregister(&cams);
698 }
699
700 MODULE_DEVICE_TABLE(usb, id_table);
701 MODULE_LICENSE("GPL");
702
703 module_init(ultracam_init);
704 module_exit(ultracam_cleanup);
705