tjh.dev / kernel
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kernel / drivers / usb / media / ultracam.c
at v2.6.12 679 lines 21 kB view raw
1/* 2 * USB NB Camera driver 3 * 4 * HISTORY: 5 * 25-Dec-2002 Dmitri Removed lighting, sharpness parameters, methods. 6 */ 7 8#include <linux/kernel.h> 9#include <linux/sched.h> 10#include <linux/module.h> 11#include <linux/init.h> 12 13#include "usbvideo.h" 14 15#define ULTRACAM_VENDOR_ID 0x0461 16#define ULTRACAM_PRODUCT_ID 0x0813 17 18#define MAX_CAMERAS 4 /* How many devices we allow to connect */ 19 20/* 21 * This structure lives in uvd_t->user field. 22 */ 23typedef struct { 24 int initialized; /* Had we already sent init sequence? */ 25 int camera_model; /* What type of IBM camera we got? */ 26 int has_hdr; 27} ultracam_t; 28#define ULTRACAM_T(uvd) ((ultracam_t *)((uvd)->user_data)) 29 30static struct usbvideo *cams = NULL; 31 32static int debug = 0; 33 34static int flags = 0; /* FLAGS_DISPLAY_HINTS | FLAGS_OVERLAY_STATS; */ 35 36static const int min_canvasWidth = 8; 37static const int min_canvasHeight = 4; 38 39#define FRAMERATE_MIN 0 40#define FRAMERATE_MAX 6 41static int framerate = -1; 42 43/* 44 * Here we define several initialization variables. They may 45 * be used to automatically set color, hue, brightness and 46 * contrast to desired values. This is particularly useful in 47 * case of webcams (which have no controls and no on-screen 48 * output) and also when a client V4L software is used that 49 * does not have some of those controls. In any case it's 50 * good to have startup values as options. 51 * 52 * These values are all in [0..255] range. This simplifies 53 * operation. Note that actual values of V4L variables may 54 * be scaled up (as much as << 8). User can see that only 55 * on overlay output, however, or through a V4L client. 56 */ 57static int init_brightness = 128; 58static int init_contrast = 192; 59static int init_color = 128; 60static int init_hue = 128; 61static int hue_correction = 128; 62 63module_param(debug, int, S_IRUGO | S_IWUSR); 64MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)"); 65module_param(flags, int, 0); 66MODULE_PARM_DESC(flags, 67 "Bitfield: 0=VIDIOCSYNC, " 68 "1=B/W, " 69 "2=show hints, " 70 "3=show stats, " 71 "4=test pattern, " 72 "5=separate frames, " 73 "6=clean frames"); 74module_param(framerate, int, 0); 75MODULE_PARM_DESC(framerate, "Framerate setting: 0=slowest, 6=fastest (default=2)"); 76 77module_param(init_brightness, int, 0); 78MODULE_PARM_DESC(init_brightness, "Brightness preconfiguration: 0-255 (default=128)"); 79module_param(init_contrast, int, 0); 80MODULE_PARM_DESC(init_contrast, "Contrast preconfiguration: 0-255 (default=192)"); 81module_param(init_color, int, 0); 82MODULE_PARM_DESC(init_color, "Color preconfiguration: 0-255 (default=128)"); 83module_param(init_hue, int, 0); 84MODULE_PARM_DESC(init_hue, "Hue preconfiguration: 0-255 (default=128)"); 85module_param(hue_correction, int, 0); 86MODULE_PARM_DESC(hue_correction, "YUV colorspace regulation: 0-255 (default=128)"); 87 88/* 89 * ultracam_ProcessIsocData() 90 * 91 * Generic routine to parse the ring queue data. It employs either 92 * ultracam_find_header() or ultracam_parse_lines() to do most 93 * of work. 94 * 95 * 02-Nov-2000 First (mostly dummy) version. 96 * 06-Nov-2000 Rewrote to dump all data into frame. 97 */ 98static void ultracam_ProcessIsocData(struct uvd *uvd, struct usbvideo_frame *frame) 99{ 100 int n; 101 102 assert(uvd != NULL); 103 assert(frame != NULL); 104 105 /* Try to move data from queue into frame buffer */ 106 n = RingQueue_GetLength(&uvd->dp); 107 if (n > 0) { 108 int m; 109 /* See how much spare we have left */ 110 m = uvd->max_frame_size - frame->seqRead_Length; 111 if (n > m) 112 n = m; 113 /* Now move that much data into frame buffer */ 114 RingQueue_Dequeue( 115 &uvd->dp, 116 frame->data + frame->seqRead_Length, 117 m); 118 frame->seqRead_Length += m; 119 } 120 /* See if we filled the frame */ 121 if (frame->seqRead_Length >= uvd->max_frame_size) { 122 frame->frameState = FrameState_Done; 123 uvd->curframe = -1; 124 uvd->stats.frame_num++; 125 } 126} 127 128/* 129 * ultracam_veio() 130 * 131 * History: 132 * 1/27/00 Added check for dev == NULL; this happens if camera is unplugged. 133 */ 134static int ultracam_veio( 135 struct uvd *uvd, 136 unsigned char req, 137 unsigned short value, 138 unsigned short index, 139 int is_out) 140{ 141 static const char proc[] = "ultracam_veio"; 142 unsigned char cp[8] /* = { 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef } */; 143 int i; 144 145 if (!CAMERA_IS_OPERATIONAL(uvd)) 146 return 0; 147 148 if (!is_out) { 149 i = usb_control_msg( 150 uvd->dev, 151 usb_rcvctrlpipe(uvd->dev, 0), 152 req, 153 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 154 value, 155 index, 156 cp, 157 sizeof(cp), 158 1000); 159#if 1 160 info("USB => %02x%02x%02x%02x%02x%02x%02x%02x " 161 "(req=$%02x val=$%04x ind=$%04x)", 162 cp[0],cp[1],cp[2],cp[3],cp[4],cp[5],cp[6],cp[7], 163 req, value, index); 164#endif 165 } else { 166 i = usb_control_msg( 167 uvd->dev, 168 usb_sndctrlpipe(uvd->dev, 0), 169 req, 170 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 171 value, 172 index, 173 NULL, 174 0, 175 1000); 176 } 177 if (i < 0) { 178 err("%s: ERROR=%d. Camera stopped; Reconnect or reload driver.", 179 proc, i); 180 uvd->last_error = i; 181 } 182 return i; 183} 184 185/* 186 * ultracam_calculate_fps() 187 */ 188static int ultracam_calculate_fps(struct uvd *uvd) 189{ 190 return 3 + framerate*4 + framerate/2; 191} 192 193/* 194 * ultracam_adjust_contrast() 195 */ 196static void ultracam_adjust_contrast(struct uvd *uvd) 197{ 198} 199 200/* 201 * ultracam_set_brightness() 202 * 203 * This procedure changes brightness of the picture. 204 */ 205static void ultracam_set_brightness(struct uvd *uvd) 206{ 207} 208 209static void ultracam_set_hue(struct uvd *uvd) 210{ 211} 212 213/* 214 * ultracam_adjust_picture() 215 * 216 * This procedure gets called from V4L interface to update picture settings. 217 * Here we change brightness and contrast. 218 */ 219static void ultracam_adjust_picture(struct uvd *uvd) 220{ 221 ultracam_adjust_contrast(uvd); 222 ultracam_set_brightness(uvd); 223 ultracam_set_hue(uvd); 224} 225 226/* 227 * ultracam_video_stop() 228 * 229 * This code tells camera to stop streaming. The interface remains 230 * configured and bandwidth - claimed. 231 */ 232static void ultracam_video_stop(struct uvd *uvd) 233{ 234} 235 236/* 237 * ultracam_reinit_iso() 238 * 239 * This procedure sends couple of commands to the camera and then 240 * resets the video pipe. This sequence was observed to reinit the 241 * camera or, at least, to initiate ISO data stream. 242 */ 243static void ultracam_reinit_iso(struct uvd *uvd, int do_stop) 244{ 245} 246 247static void ultracam_video_start(struct uvd *uvd) 248{ 249 ultracam_reinit_iso(uvd, 0); 250} 251 252static int ultracam_resetPipe(struct uvd *uvd) 253{ 254 usb_clear_halt(uvd->dev, uvd->video_endp); 255 return 0; 256} 257 258static int ultracam_alternateSetting(struct uvd *uvd, int setting) 259{ 260 static const char proc[] = "ultracam_alternateSetting"; 261 int i; 262 i = usb_set_interface(uvd->dev, uvd->iface, setting); 263 if (i < 0) { 264 err("%s: usb_set_interface error", proc); 265 uvd->last_error = i; 266 return -EBUSY; 267 } 268 return 0; 269} 270 271/* 272 * Return negative code on failure, 0 on success. 273 */ 274static int ultracam_setup_on_open(struct uvd *uvd) 275{ 276 int setup_ok = 0; /* Success by default */ 277 /* Send init sequence only once, it's large! */ 278 if (!ULTRACAM_T(uvd)->initialized) { 279 ultracam_alternateSetting(uvd, 0x04); 280 ultracam_alternateSetting(uvd, 0x00); 281 ultracam_veio(uvd, 0x02, 0x0004, 0x000b, 1); 282 ultracam_veio(uvd, 0x02, 0x0001, 0x0005, 1); 283 ultracam_veio(uvd, 0x02, 0x8000, 0x0000, 1); 284 ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1); 285 ultracam_veio(uvd, 0x00, 0x00b0, 0x0001, 1); 286 ultracam_veio(uvd, 0x00, 0x0000, 0x0002, 1); 287 ultracam_veio(uvd, 0x00, 0x000c, 0x0003, 1); 288 ultracam_veio(uvd, 0x00, 0x000b, 0x0004, 1); 289 ultracam_veio(uvd, 0x00, 0x0000, 0x0005, 1); 290 ultracam_veio(uvd, 0x00, 0x0000, 0x0006, 1); 291 ultracam_veio(uvd, 0x00, 0x0079, 0x0007, 1); 292 ultracam_veio(uvd, 0x00, 0x003b, 0x0008, 1); 293 ultracam_veio(uvd, 0x00, 0x0002, 0x000f, 1); 294 ultracam_veio(uvd, 0x00, 0x0001, 0x0010, 1); 295 ultracam_veio(uvd, 0x00, 0x0000, 0x0011, 1); 296 ultracam_veio(uvd, 0x00, 0x0000, 0x00bf, 1); 297 ultracam_veio(uvd, 0x00, 0x0001, 0x00c0, 1); 298 ultracam_veio(uvd, 0x00, 0x0010, 0x00cb, 1); 299 ultracam_veio(uvd, 0x01, 0x00a4, 0x0001, 1); 300 ultracam_veio(uvd, 0x01, 0x0010, 0x0002, 1); 301 ultracam_veio(uvd, 0x01, 0x0066, 0x0007, 1); 302 ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1); 303 ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1); 304 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1); 305 ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1); 306 ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1); 307 ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1); 308 ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1); 309 ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1); 310 ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1); 311 ultracam_veio(uvd, 0x01, 0x000b, 0x0011, 1); 312 ultracam_veio(uvd, 0x01, 0x0001, 0x0012, 1); 313 ultracam_veio(uvd, 0x01, 0x0000, 0x0013, 1); 314 ultracam_veio(uvd, 0x01, 0x0000, 0x0014, 1); 315 ultracam_veio(uvd, 0x01, 0x0087, 0x0051, 1); 316 ultracam_veio(uvd, 0x01, 0x0040, 0x0052, 1); 317 ultracam_veio(uvd, 0x01, 0x0058, 0x0053, 1); 318 ultracam_veio(uvd, 0x01, 0x0040, 0x0054, 1); 319 ultracam_veio(uvd, 0x01, 0x0000, 0x0040, 1); 320 ultracam_veio(uvd, 0x01, 0x0010, 0x0041, 1); 321 ultracam_veio(uvd, 0x01, 0x0020, 0x0042, 1); 322 ultracam_veio(uvd, 0x01, 0x0030, 0x0043, 1); 323 ultracam_veio(uvd, 0x01, 0x0040, 0x0044, 1); 324 ultracam_veio(uvd, 0x01, 0x0050, 0x0045, 1); 325 ultracam_veio(uvd, 0x01, 0x0060, 0x0046, 1); 326 ultracam_veio(uvd, 0x01, 0x0070, 0x0047, 1); 327 ultracam_veio(uvd, 0x01, 0x0080, 0x0048, 1); 328 ultracam_veio(uvd, 0x01, 0x0090, 0x0049, 1); 329 ultracam_veio(uvd, 0x01, 0x00a0, 0x004a, 1); 330 ultracam_veio(uvd, 0x01, 0x00b0, 0x004b, 1); 331 ultracam_veio(uvd, 0x01, 0x00c0, 0x004c, 1); 332 ultracam_veio(uvd, 0x01, 0x00d0, 0x004d, 1); 333 ultracam_veio(uvd, 0x01, 0x00e0, 0x004e, 1); 334 ultracam_veio(uvd, 0x01, 0x00f0, 0x004f, 1); 335 ultracam_veio(uvd, 0x01, 0x00ff, 0x0050, 1); 336 ultracam_veio(uvd, 0x01, 0x0000, 0x0056, 1); 337 ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1); 338 ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1); 339 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1); 340 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 341 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 342 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 343 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 344 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 345 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 346 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 347 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 348 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 349 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 350 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 351 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 352 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 353 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 354 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 355 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 356 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 357 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 358 ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1); 359 ultracam_veio(uvd, 0x00, 0x0004, 0x00c2, 1); 360 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1); 361 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 362 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 363 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 364 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 365 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 366 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 367 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 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, 0x0002, 0x00c1, 1); 380 ultracam_veio(uvd, 0x00, 0x0020, 0x00c2, 1); 381 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1); 382 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1); 383 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1); 384 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1); 385 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1); 386 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1); 387 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1); 388 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 389 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1); 390 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1); 391 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1); 392 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1); 393 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1); 394 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1); 395 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 396 ultracam_veio(uvd, 0x00, 0x0040, 0x00c1, 1); 397 ultracam_veio(uvd, 0x00, 0x0017, 0x00c2, 1); 398 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1); 399 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1); 400 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1); 401 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1); 402 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1); 403 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1); 404 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1); 405 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 406 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1); 407 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1); 408 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1); 409 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1); 410 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1); 411 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1); 412 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1); 413 ultracam_veio(uvd, 0x00, 0x00c0, 0x00c1, 1); 414 ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1); 415 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1); 416 ultracam_veio(uvd, 0x02, 0xc040, 0x0001, 1); 417 ultracam_veio(uvd, 0x01, 0x0000, 0x0008, 0); 418 ultracam_veio(uvd, 0x01, 0x0000, 0x0009, 0); 419 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 0); 420 ultracam_veio(uvd, 0x01, 0x0000, 0x000b, 0); 421 ultracam_veio(uvd, 0x01, 0x0000, 0x000c, 0); 422 ultracam_veio(uvd, 0x01, 0x0000, 0x000d, 0); 423 ultracam_veio(uvd, 0x01, 0x0000, 0x000e, 0); 424 ultracam_veio(uvd, 0x01, 0x0000, 0x000f, 0); 425 ultracam_veio(uvd, 0x01, 0x0000, 0x0010, 0); 426 ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1); 427 ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1); 428 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1); 429 ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1); 430 ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1); 431 ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1); 432 ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1); 433 ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1); 434 ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1); 435 ultracam_veio(uvd, 0x01, 0x0000, 0x0001, 0); 436 ultracam_veio(uvd, 0x01, 0x0064, 0x0001, 1); 437 ultracam_veio(uvd, 0x01, 0x0059, 0x0051, 1); 438 ultracam_veio(uvd, 0x01, 0x003f, 0x0052, 1); 439 ultracam_veio(uvd, 0x01, 0x0094, 0x0053, 1); 440 ultracam_veio(uvd, 0x01, 0x00ff, 0x0011, 1); 441 ultracam_veio(uvd, 0x01, 0x0003, 0x0012, 1); 442 ultracam_veio(uvd, 0x01, 0x00f7, 0x0013, 1); 443 ultracam_veio(uvd, 0x00, 0x0009, 0x0011, 1); 444 ultracam_veio(uvd, 0x00, 0x0000, 0x0001, 1); 445 ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1); 446 ultracam_veio(uvd, 0x00, 0x0020, 0x00c1, 1); 447 ultracam_veio(uvd, 0x00, 0x0010, 0x00c2, 1); 448 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1); 449 ultracam_alternateSetting(uvd, 0x04); 450 ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1); 451 ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1); 452 ultracam_veio(uvd, 0x02, 0x0000, 0x0006, 1); 453 ultracam_veio(uvd, 0x02, 0x9000, 0x0007, 1); 454 ultracam_veio(uvd, 0x02, 0x0042, 0x0001, 1); 455 ultracam_veio(uvd, 0x02, 0x0000, 0x000b, 0); 456 ultracam_resetPipe(uvd); 457 ULTRACAM_T(uvd)->initialized = (setup_ok != 0); 458 } 459 return setup_ok; 460} 461 462static void ultracam_configure_video(struct uvd *uvd) 463{ 464 if (uvd == NULL) 465 return; 466 467 RESTRICT_TO_RANGE(init_brightness, 0, 255); 468 RESTRICT_TO_RANGE(init_contrast, 0, 255); 469 RESTRICT_TO_RANGE(init_color, 0, 255); 470 RESTRICT_TO_RANGE(init_hue, 0, 255); 471 RESTRICT_TO_RANGE(hue_correction, 0, 255); 472 473 memset(&uvd->vpic, 0, sizeof(uvd->vpic)); 474 memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old)); 475 476 uvd->vpic.colour = init_color << 8; 477 uvd->vpic.hue = init_hue << 8; 478 uvd->vpic.brightness = init_brightness << 8; 479 uvd->vpic.contrast = init_contrast << 8; 480 uvd->vpic.whiteness = 105 << 8; /* This one isn't used */ 481 uvd->vpic.depth = 24; 482 uvd->vpic.palette = VIDEO_PALETTE_RGB24; 483 484 memset(&uvd->vcap, 0, sizeof(uvd->vcap)); 485 strcpy(uvd->vcap.name, "IBM Ultra Camera"); 486 uvd->vcap.type = VID_TYPE_CAPTURE; 487 uvd->vcap.channels = 1; 488 uvd->vcap.audios = 0; 489 uvd->vcap.maxwidth = VIDEOSIZE_X(uvd->canvas); 490 uvd->vcap.maxheight = VIDEOSIZE_Y(uvd->canvas); 491 uvd->vcap.minwidth = min_canvasWidth; 492 uvd->vcap.minheight = min_canvasHeight; 493 494 memset(&uvd->vchan, 0, sizeof(uvd->vchan)); 495 uvd->vchan.flags = 0; 496 uvd->vchan.tuners = 0; 497 uvd->vchan.channel = 0; 498 uvd->vchan.type = VIDEO_TYPE_CAMERA; 499 strcpy(uvd->vchan.name, "Camera"); 500} 501 502/* 503 * ultracam_probe() 504 * 505 * This procedure queries device descriptor and accepts the interface 506 * if it looks like our camera. 507 * 508 * History: 509 * 12-Nov-2000 Reworked to comply with new probe() signature. 510 * 23-Jan-2001 Added compatibility with 2.2.x kernels. 511 */ 512static int ultracam_probe(struct usb_interface *intf, const struct usb_device_id *devid) 513{ 514 struct usb_device *dev = interface_to_usbdev(intf); 515 struct uvd *uvd = NULL; 516 int ix, i, nas; 517 int actInterface=-1, inactInterface=-1, maxPS=0; 518 unsigned char video_ep = 0; 519 520 if (debug >= 1) 521 info("ultracam_probe(%p)", intf); 522 523 /* We don't handle multi-config cameras */ 524 if (dev->descriptor.bNumConfigurations != 1) 525 return -ENODEV; 526 527 info("IBM Ultra camera found (rev. 0x%04x)", 528 le16_to_cpu(dev->descriptor.bcdDevice)); 529 530 /* Validate found interface: must have one ISO endpoint */ 531 nas = intf->num_altsetting; 532 if (debug > 0) 533 info("Number of alternate settings=%d.", nas); 534 if (nas < 8) { 535 err("Too few alternate settings for this camera!"); 536 return -ENODEV; 537 } 538 /* Validate all alternate settings */ 539 for (ix=0; ix < nas; ix++) { 540 const struct usb_host_interface *interface; 541 const struct usb_endpoint_descriptor *endpoint; 542 543 interface = &intf->altsetting[ix]; 544 i = interface->desc.bAlternateSetting; 545 if (interface->desc.bNumEndpoints != 1) { 546 err("Interface %d. has %u. endpoints!", 547 interface->desc.bInterfaceNumber, 548 (unsigned)(interface->desc.bNumEndpoints)); 549 return -ENODEV; 550 } 551 endpoint = &interface->endpoint[0].desc; 552 if (video_ep == 0) 553 video_ep = endpoint->bEndpointAddress; 554 else if (video_ep != endpoint->bEndpointAddress) { 555 err("Alternate settings have different endpoint addresses!"); 556 return -ENODEV; 557 } 558 if ((endpoint->bmAttributes & 0x03) != 0x01) { 559 err("Interface %d. has non-ISO endpoint!", 560 interface->desc.bInterfaceNumber); 561 return -ENODEV; 562 } 563 if ((endpoint->bEndpointAddress & 0x80) == 0) { 564 err("Interface %d. has ISO OUT endpoint!", 565 interface->desc.bInterfaceNumber); 566 return -ENODEV; 567 } 568 if (le16_to_cpu(endpoint->wMaxPacketSize) == 0) { 569 if (inactInterface < 0) 570 inactInterface = i; 571 else { 572 err("More than one inactive alt. setting!"); 573 return -ENODEV; 574 } 575 } else { 576 if (actInterface < 0) { 577 actInterface = i; 578 maxPS = le16_to_cpu(endpoint->wMaxPacketSize); 579 if (debug > 0) 580 info("Active setting=%d. maxPS=%d.", i, maxPS); 581 } else { 582 /* Got another active alt. setting */ 583 if (maxPS < le16_to_cpu(endpoint->wMaxPacketSize)) { 584 /* This one is better! */ 585 actInterface = i; 586 maxPS = le16_to_cpu(endpoint->wMaxPacketSize); 587 if (debug > 0) { 588 info("Even better ctive setting=%d. maxPS=%d.", 589 i, maxPS); 590 } 591 } 592 } 593 } 594 } 595 if ((maxPS <= 0) || (actInterface < 0) || (inactInterface < 0)) { 596 err("Failed to recognize the camera!"); 597 return -ENODEV; 598 } 599 600 uvd = usbvideo_AllocateDevice(cams); 601 if (uvd != NULL) { 602 /* Here uvd is a fully allocated uvd object */ 603 uvd->flags = flags; 604 uvd->debug = debug; 605 uvd->dev = dev; 606 uvd->iface = intf->altsetting->desc.bInterfaceNumber; 607 uvd->ifaceAltInactive = inactInterface; 608 uvd->ifaceAltActive = actInterface; 609 uvd->video_endp = video_ep; 610 uvd->iso_packet_len = maxPS; 611 uvd->paletteBits = 1L << VIDEO_PALETTE_RGB24; 612 uvd->defaultPalette = VIDEO_PALETTE_RGB24; 613 uvd->canvas = VIDEOSIZE(640, 480); /* FIXME */ 614 uvd->videosize = uvd->canvas; /* ultracam_size_to_videosize(size);*/ 615 616 /* Initialize ibmcam-specific data */ 617 assert(ULTRACAM_T(uvd) != NULL); 618 ULTRACAM_T(uvd)->camera_model = 0; /* Not used yet */ 619 ULTRACAM_T(uvd)->initialized = 0; 620 621 ultracam_configure_video(uvd); 622 623 i = usbvideo_RegisterVideoDevice(uvd); 624 if (i != 0) { 625 err("usbvideo_RegisterVideoDevice() failed."); 626 uvd = NULL; 627 } 628 } 629 630 if (uvd) { 631 usb_set_intfdata (intf, uvd); 632 return 0; 633 } 634 return -EIO; 635} 636 637 638static struct usb_device_id id_table[] = { 639 { USB_DEVICE(ULTRACAM_VENDOR_ID, ULTRACAM_PRODUCT_ID) }, 640 { } /* Terminating entry */ 641}; 642 643/* 644 * ultracam_init() 645 * 646 * This code is run to initialize the driver. 647 */ 648static int __init ultracam_init(void) 649{ 650 struct usbvideo_cb cbTbl; 651 memset(&cbTbl, 0, sizeof(cbTbl)); 652 cbTbl.probe = ultracam_probe; 653 cbTbl.setupOnOpen = ultracam_setup_on_open; 654 cbTbl.videoStart = ultracam_video_start; 655 cbTbl.videoStop = ultracam_video_stop; 656 cbTbl.processData = ultracam_ProcessIsocData; 657 cbTbl.postProcess = usbvideo_DeinterlaceFrame; 658 cbTbl.adjustPicture = ultracam_adjust_picture; 659 cbTbl.getFPS = ultracam_calculate_fps; 660 return usbvideo_register( 661 &cams, 662 MAX_CAMERAS, 663 sizeof(ultracam_t), 664 "ultracam", 665 &cbTbl, 666 THIS_MODULE, 667 id_table); 668} 669 670static void __exit ultracam_cleanup(void) 671{ 672 usbvideo_Deregister(&cams); 673} 674 675MODULE_DEVICE_TABLE(usb, id_table); 676MODULE_LICENSE("GPL"); 677 678module_init(ultracam_init); 679module_exit(ultracam_cleanup);