Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame^] | 1 | /**************************************************************************** |
| 2 | * |
| 3 | * Filename: cpia2_v4l.c |
| 4 | * |
| 5 | * Copyright 2001, STMicrolectronics, Inc. |
| 6 | * Contact: steve.miller@st.com |
| 7 | * Copyright 2001,2005, Scott J. Bertin <scottbertin@yahoo.com> |
| 8 | * |
| 9 | * Description: |
| 10 | * This is a USB driver for CPia2 based video cameras. |
| 11 | * The infrastructure of this driver is based on the cpia usb driver by |
| 12 | * Jochen Scharrlach and Johannes Erdfeldt. |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this program; if not, write to the Free Software |
| 26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 27 | * |
| 28 | * Stripped of 2.4 stuff ready for main kernel submit by |
| 29 | * Alan Cox <alan@redhat.com> |
| 30 | ****************************************************************************/ |
| 31 | |
| 32 | #include <linux/version.h> |
| 33 | |
| 34 | #include <linux/config.h> |
| 35 | |
| 36 | #include <linux/module.h> |
| 37 | #include <linux/time.h> |
| 38 | #include <linux/sched.h> |
| 39 | #include <linux/slab.h> |
| 40 | #include <linux/init.h> |
| 41 | #include <linux/moduleparam.h> |
| 42 | |
| 43 | #include "cpia2.h" |
| 44 | #include "cpia2dev.h" |
| 45 | |
| 46 | |
| 47 | //#define _CPIA2_DEBUG_ |
| 48 | |
| 49 | #define MAKE_STRING_1(x) #x |
| 50 | #define MAKE_STRING(x) MAKE_STRING_1(x) |
| 51 | |
| 52 | static int video_nr = -1; |
| 53 | module_param(video_nr, int, 0); |
| 54 | MODULE_PARM_DESC(video_nr,"video device to register (0=/dev/video0, etc)"); |
| 55 | |
| 56 | static int buffer_size = 68*1024; |
| 57 | module_param(buffer_size, int, 0); |
| 58 | MODULE_PARM_DESC(buffer_size, "Size for each frame buffer in bytes (default 68k)"); |
| 59 | |
| 60 | static int num_buffers = 3; |
| 61 | module_param(num_buffers, int, 0); |
| 62 | MODULE_PARM_DESC(num_buffers, "Number of frame buffers (1-" |
| 63 | MAKE_STRING(VIDEO_MAX_FRAME) ", default 3)"); |
| 64 | |
| 65 | static int alternate = DEFAULT_ALT; |
| 66 | module_param(alternate, int, 0); |
| 67 | MODULE_PARM_DESC(alternate, "USB Alternate (" MAKE_STRING(USBIF_ISO_1) "-" |
| 68 | MAKE_STRING(USBIF_ISO_6) ", default " |
| 69 | MAKE_STRING(DEFAULT_ALT) ")"); |
| 70 | |
| 71 | static int flicker_freq = 60; |
| 72 | module_param(flicker_freq, int, 0); |
| 73 | MODULE_PARM_DESC(flicker_freq, "Flicker frequency (" MAKE_STRING(50) "or" |
| 74 | MAKE_STRING(60) ", default " |
| 75 | MAKE_STRING(60) ")"); |
| 76 | |
| 77 | static int flicker_mode = NEVER_FLICKER; |
| 78 | module_param(flicker_mode, int, 0); |
| 79 | MODULE_PARM_DESC(flicker_mode, |
| 80 | "Flicker supression (" MAKE_STRING(NEVER_FLICKER) "or" |
| 81 | MAKE_STRING(ANTI_FLICKER_ON) ", default " |
| 82 | MAKE_STRING(NEVER_FLICKER) ")"); |
| 83 | |
| 84 | MODULE_AUTHOR("Steve Miller (STMicroelectronics) <steve.miller@st.com>"); |
| 85 | MODULE_DESCRIPTION("V4L-driver for STMicroelectronics CPiA2 based cameras"); |
| 86 | MODULE_SUPPORTED_DEVICE("video"); |
| 87 | MODULE_LICENSE("GPL"); |
| 88 | |
| 89 | #define ABOUT "V4L-Driver for Vision CPiA2 based cameras" |
| 90 | |
| 91 | #ifndef VID_HARDWARE_CPIA2 |
| 92 | #error "VID_HARDWARE_CPIA2 should have been defined in linux/videodev.h" |
| 93 | #endif |
| 94 | |
| 95 | struct control_menu_info { |
| 96 | int value; |
| 97 | char name[32]; |
| 98 | }; |
| 99 | |
| 100 | static struct control_menu_info framerate_controls[] = |
| 101 | { |
| 102 | { CPIA2_VP_FRAMERATE_6_25, "6.25 fps" }, |
| 103 | { CPIA2_VP_FRAMERATE_7_5, "7.5 fps" }, |
| 104 | { CPIA2_VP_FRAMERATE_12_5, "12.5 fps" }, |
| 105 | { CPIA2_VP_FRAMERATE_15, "15 fps" }, |
| 106 | { CPIA2_VP_FRAMERATE_25, "25 fps" }, |
| 107 | { CPIA2_VP_FRAMERATE_30, "30 fps" }, |
| 108 | }; |
| 109 | #define NUM_FRAMERATE_CONTROLS (sizeof(framerate_controls)/sizeof(framerate_controls[0])) |
| 110 | |
| 111 | static struct control_menu_info flicker_controls[] = |
| 112 | { |
| 113 | { NEVER_FLICKER, "Off" }, |
| 114 | { FLICKER_50, "50 Hz" }, |
| 115 | { FLICKER_60, "60 Hz" }, |
| 116 | }; |
| 117 | #define NUM_FLICKER_CONTROLS (sizeof(flicker_controls)/sizeof(flicker_controls[0])) |
| 118 | |
| 119 | static struct control_menu_info lights_controls[] = |
| 120 | { |
| 121 | { 0, "Off" }, |
| 122 | { 64, "Top" }, |
| 123 | { 128, "Bottom" }, |
| 124 | { 192, "Both" }, |
| 125 | }; |
| 126 | #define NUM_LIGHTS_CONTROLS (sizeof(lights_controls)/sizeof(lights_controls[0])) |
| 127 | #define GPIO_LIGHTS_MASK 192 |
| 128 | |
| 129 | static struct v4l2_queryctrl controls[] = { |
| 130 | { |
| 131 | .id = V4L2_CID_BRIGHTNESS, |
| 132 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 133 | .name = "Brightness", |
| 134 | .minimum = 0, |
| 135 | .maximum = 255, |
| 136 | .step = 1, |
| 137 | .default_value = DEFAULT_BRIGHTNESS, |
| 138 | }, |
| 139 | { |
| 140 | .id = V4L2_CID_CONTRAST, |
| 141 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 142 | .name = "Contrast", |
| 143 | .minimum = 0, |
| 144 | .maximum = 255, |
| 145 | .step = 1, |
| 146 | .default_value = DEFAULT_CONTRAST, |
| 147 | }, |
| 148 | { |
| 149 | .id = V4L2_CID_SATURATION, |
| 150 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 151 | .name = "Saturation", |
| 152 | .minimum = 0, |
| 153 | .maximum = 255, |
| 154 | .step = 1, |
| 155 | .default_value = DEFAULT_SATURATION, |
| 156 | }, |
| 157 | { |
| 158 | .id = V4L2_CID_HFLIP, |
| 159 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 160 | .name = "Mirror Horizontally", |
| 161 | .minimum = 0, |
| 162 | .maximum = 1, |
| 163 | .step = 1, |
| 164 | .default_value = 0, |
| 165 | }, |
| 166 | { |
| 167 | .id = V4L2_CID_VFLIP, |
| 168 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 169 | .name = "Flip Vertically", |
| 170 | .minimum = 0, |
| 171 | .maximum = 1, |
| 172 | .step = 1, |
| 173 | .default_value = 0, |
| 174 | }, |
| 175 | { |
| 176 | .id = CPIA2_CID_TARGET_KB, |
| 177 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 178 | .name = "Target KB", |
| 179 | .minimum = 0, |
| 180 | .maximum = 255, |
| 181 | .step = 1, |
| 182 | .default_value = DEFAULT_TARGET_KB, |
| 183 | }, |
| 184 | { |
| 185 | .id = CPIA2_CID_GPIO, |
| 186 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 187 | .name = "GPIO", |
| 188 | .minimum = 0, |
| 189 | .maximum = 255, |
| 190 | .step = 1, |
| 191 | .default_value = 0, |
| 192 | }, |
| 193 | { |
| 194 | .id = CPIA2_CID_FLICKER_MODE, |
| 195 | .type = V4L2_CTRL_TYPE_MENU, |
| 196 | .name = "Flicker Reduction", |
| 197 | .minimum = 0, |
| 198 | .maximum = NUM_FLICKER_CONTROLS-1, |
| 199 | .step = 1, |
| 200 | .default_value = 0, |
| 201 | }, |
| 202 | { |
| 203 | .id = CPIA2_CID_FRAMERATE, |
| 204 | .type = V4L2_CTRL_TYPE_MENU, |
| 205 | .name = "Framerate", |
| 206 | .minimum = 0, |
| 207 | .maximum = NUM_FRAMERATE_CONTROLS-1, |
| 208 | .step = 1, |
| 209 | .default_value = NUM_FRAMERATE_CONTROLS-1, |
| 210 | }, |
| 211 | { |
| 212 | .id = CPIA2_CID_USB_ALT, |
| 213 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 214 | .name = "USB Alternate", |
| 215 | .minimum = USBIF_ISO_1, |
| 216 | .maximum = USBIF_ISO_6, |
| 217 | .step = 1, |
| 218 | .default_value = DEFAULT_ALT, |
| 219 | }, |
| 220 | { |
| 221 | .id = CPIA2_CID_LIGHTS, |
| 222 | .type = V4L2_CTRL_TYPE_MENU, |
| 223 | .name = "Lights", |
| 224 | .minimum = 0, |
| 225 | .maximum = NUM_LIGHTS_CONTROLS-1, |
| 226 | .step = 1, |
| 227 | .default_value = 0, |
| 228 | }, |
| 229 | { |
| 230 | .id = CPIA2_CID_RESET_CAMERA, |
| 231 | .type = V4L2_CTRL_TYPE_BUTTON, |
| 232 | .name = "Reset Camera", |
| 233 | .minimum = 0, |
| 234 | .maximum = 0, |
| 235 | .step = 0, |
| 236 | .default_value = 0, |
| 237 | }, |
| 238 | }; |
| 239 | #define NUM_CONTROLS (sizeof(controls)/sizeof(controls[0])) |
| 240 | |
| 241 | |
| 242 | /****************************************************************************** |
| 243 | * |
| 244 | * cpia2_open |
| 245 | * |
| 246 | *****************************************************************************/ |
| 247 | static int cpia2_open(struct inode *inode, struct file *file) |
| 248 | { |
| 249 | struct video_device *dev = video_devdata(file); |
| 250 | struct camera_data *cam = video_get_drvdata(dev); |
| 251 | int retval = 0; |
| 252 | |
| 253 | if (!cam) { |
| 254 | ERR("Internal error, camera_data not found!\n"); |
| 255 | return -ENODEV; |
| 256 | } |
| 257 | |
| 258 | if(down_interruptible(&cam->busy_lock)) |
| 259 | return -ERESTARTSYS; |
| 260 | |
| 261 | if(!cam->present) { |
| 262 | retval = -ENODEV; |
| 263 | goto err_return; |
| 264 | } |
| 265 | |
| 266 | if (cam->open_count > 0) { |
| 267 | goto skip_init; |
| 268 | } |
| 269 | |
| 270 | if (cpia2_allocate_buffers(cam)) { |
| 271 | retval = -ENOMEM; |
| 272 | goto err_return; |
| 273 | } |
| 274 | |
| 275 | /* reset the camera */ |
| 276 | if (cpia2_reset_camera(cam) < 0) { |
| 277 | retval = -EIO; |
| 278 | goto err_return; |
| 279 | } |
| 280 | |
| 281 | cam->APP_len = 0; |
| 282 | cam->COM_len = 0; |
| 283 | |
| 284 | skip_init: |
| 285 | { |
| 286 | struct cpia2_fh *fh = kmalloc(sizeof(*fh),GFP_KERNEL); |
| 287 | if(!fh) { |
| 288 | retval = -ENOMEM; |
| 289 | goto err_return; |
| 290 | } |
| 291 | file->private_data = fh; |
| 292 | fh->prio = V4L2_PRIORITY_UNSET; |
| 293 | v4l2_prio_open(&cam->prio, &fh->prio); |
| 294 | fh->mmapped = 0; |
| 295 | } |
| 296 | |
| 297 | ++cam->open_count; |
| 298 | |
| 299 | cpia2_dbg_dump_registers(cam); |
| 300 | |
| 301 | err_return: |
| 302 | up(&cam->busy_lock); |
| 303 | return retval; |
| 304 | } |
| 305 | |
| 306 | /****************************************************************************** |
| 307 | * |
| 308 | * cpia2_close |
| 309 | * |
| 310 | *****************************************************************************/ |
| 311 | static int cpia2_close(struct inode *inode, struct file *file) |
| 312 | { |
| 313 | struct video_device *dev = video_devdata(file); |
| 314 | struct camera_data *cam = video_get_drvdata(dev); |
| 315 | struct cpia2_fh *fh = file->private_data; |
| 316 | |
| 317 | down(&cam->busy_lock); |
| 318 | |
| 319 | if (cam->present && |
| 320 | (cam->open_count == 1 |
| 321 | || fh->prio == V4L2_PRIORITY_RECORD |
| 322 | )) { |
| 323 | cpia2_usb_stream_stop(cam); |
| 324 | |
| 325 | if(cam->open_count == 1) { |
| 326 | /* save camera state for later open */ |
| 327 | cpia2_save_camera_state(cam); |
| 328 | |
| 329 | cpia2_set_low_power(cam); |
| 330 | cpia2_free_buffers(cam); |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | { |
| 335 | if(fh->mmapped) |
| 336 | cam->mmapped = 0; |
| 337 | v4l2_prio_close(&cam->prio,&fh->prio); |
| 338 | file->private_data = NULL; |
| 339 | kfree(fh); |
| 340 | } |
| 341 | |
| 342 | if (--cam->open_count == 0) { |
| 343 | cpia2_free_buffers(cam); |
| 344 | if (!cam->present) { |
| 345 | video_unregister_device(dev); |
| 346 | kfree(cam); |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | up(&cam->busy_lock); |
| 351 | |
| 352 | return 0; |
| 353 | } |
| 354 | |
| 355 | /****************************************************************************** |
| 356 | * |
| 357 | * cpia2_v4l_read |
| 358 | * |
| 359 | *****************************************************************************/ |
| 360 | static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count, |
| 361 | loff_t *off) |
| 362 | { |
| 363 | struct video_device *dev = video_devdata(file); |
| 364 | struct camera_data *cam = video_get_drvdata(dev); |
| 365 | int noblock = file->f_flags&O_NONBLOCK; |
| 366 | |
| 367 | struct cpia2_fh *fh = file->private_data; |
| 368 | |
| 369 | if(!cam) |
| 370 | return -EINVAL; |
| 371 | |
| 372 | /* Priority check */ |
| 373 | if(fh->prio != V4L2_PRIORITY_RECORD) { |
| 374 | return -EBUSY; |
| 375 | } |
| 376 | |
| 377 | return cpia2_read(cam, buf, count, noblock); |
| 378 | } |
| 379 | |
| 380 | |
| 381 | /****************************************************************************** |
| 382 | * |
| 383 | * cpia2_v4l_poll |
| 384 | * |
| 385 | *****************************************************************************/ |
| 386 | static unsigned int cpia2_v4l_poll(struct file *filp, struct poll_table_struct *wait) |
| 387 | { |
| 388 | struct video_device *dev = video_devdata(filp); |
| 389 | struct camera_data *cam = video_get_drvdata(dev); |
| 390 | |
| 391 | struct cpia2_fh *fh = filp->private_data; |
| 392 | |
| 393 | if(!cam) |
| 394 | return POLLERR; |
| 395 | |
| 396 | /* Priority check */ |
| 397 | if(fh->prio != V4L2_PRIORITY_RECORD) { |
| 398 | return POLLERR; |
| 399 | } |
| 400 | |
| 401 | return cpia2_poll(cam, filp, wait); |
| 402 | } |
| 403 | |
| 404 | |
| 405 | /****************************************************************************** |
| 406 | * |
| 407 | * ioctl_cap_query |
| 408 | * |
| 409 | *****************************************************************************/ |
| 410 | static int ioctl_cap_query(void *arg, struct camera_data *cam) |
| 411 | { |
| 412 | struct video_capability *vc; |
| 413 | int retval = 0; |
| 414 | vc = arg; |
| 415 | |
| 416 | if (cam->params.pnp_id.product == 0x151) |
| 417 | strcpy(vc->name, "QX5 Microscope"); |
| 418 | else |
| 419 | strcpy(vc->name, "CPiA2 Camera"); |
| 420 | |
| 421 | vc->type = VID_TYPE_CAPTURE | VID_TYPE_MJPEG_ENCODER; |
| 422 | vc->channels = 1; |
| 423 | vc->audios = 0; |
| 424 | vc->minwidth = 176; /* VIDEOSIZE_QCIF */ |
| 425 | vc->minheight = 144; |
| 426 | switch (cam->params.version.sensor_flags) { |
| 427 | case CPIA2_VP_SENSOR_FLAGS_500: |
| 428 | vc->maxwidth = STV_IMAGE_VGA_COLS; |
| 429 | vc->maxheight = STV_IMAGE_VGA_ROWS; |
| 430 | break; |
| 431 | case CPIA2_VP_SENSOR_FLAGS_410: |
| 432 | vc->maxwidth = STV_IMAGE_CIF_COLS; |
| 433 | vc->maxheight = STV_IMAGE_CIF_ROWS; |
| 434 | break; |
| 435 | default: |
| 436 | return -EINVAL; |
| 437 | } |
| 438 | |
| 439 | return retval; |
| 440 | } |
| 441 | |
| 442 | /****************************************************************************** |
| 443 | * |
| 444 | * ioctl_get_channel |
| 445 | * |
| 446 | *****************************************************************************/ |
| 447 | static int ioctl_get_channel(void *arg) |
| 448 | { |
| 449 | int retval = 0; |
| 450 | struct video_channel *v; |
| 451 | v = arg; |
| 452 | |
| 453 | if (v->channel != 0) |
| 454 | return -EINVAL; |
| 455 | |
| 456 | v->channel = 0; |
| 457 | strcpy(v->name, "Camera"); |
| 458 | v->tuners = 0; |
| 459 | v->flags = 0; |
| 460 | v->type = VIDEO_TYPE_CAMERA; |
| 461 | v->norm = 0; |
| 462 | |
| 463 | return retval; |
| 464 | } |
| 465 | |
| 466 | /****************************************************************************** |
| 467 | * |
| 468 | * ioctl_set_channel |
| 469 | * |
| 470 | *****************************************************************************/ |
| 471 | static int ioctl_set_channel(void *arg) |
| 472 | { |
| 473 | struct video_channel *v; |
| 474 | int retval = 0; |
| 475 | v = arg; |
| 476 | |
| 477 | if (retval == 0 && v->channel != 0) |
| 478 | retval = -EINVAL; |
| 479 | |
| 480 | return retval; |
| 481 | } |
| 482 | |
| 483 | /****************************************************************************** |
| 484 | * |
| 485 | * ioctl_set_image_prop |
| 486 | * |
| 487 | *****************************************************************************/ |
| 488 | static int ioctl_set_image_prop(void *arg, struct camera_data *cam) |
| 489 | { |
| 490 | struct video_picture *vp; |
| 491 | int retval = 0; |
| 492 | vp = arg; |
| 493 | |
| 494 | /* brightness, color, contrast need no check 0-65535 */ |
| 495 | memcpy(&cam->vp, vp, sizeof(*vp)); |
| 496 | |
| 497 | /* update cam->params.colorParams */ |
| 498 | cam->params.color_params.brightness = vp->brightness / 256; |
| 499 | cam->params.color_params.saturation = vp->colour / 256; |
| 500 | cam->params.color_params.contrast = vp->contrast / 256; |
| 501 | |
| 502 | DBG("Requested params: bright 0x%X, sat 0x%X, contrast 0x%X\n", |
| 503 | cam->params.color_params.brightness, |
| 504 | cam->params.color_params.saturation, |
| 505 | cam->params.color_params.contrast); |
| 506 | |
| 507 | cpia2_set_color_params(cam); |
| 508 | |
| 509 | return retval; |
| 510 | } |
| 511 | |
| 512 | static int sync(struct camera_data *cam, int frame_nr) |
| 513 | { |
| 514 | struct framebuf *frame = &cam->buffers[frame_nr]; |
| 515 | |
| 516 | while (1) { |
| 517 | if (frame->status == FRAME_READY) |
| 518 | return 0; |
| 519 | |
| 520 | if (!cam->streaming) { |
| 521 | frame->status = FRAME_READY; |
| 522 | frame->length = 0; |
| 523 | return 0; |
| 524 | } |
| 525 | |
| 526 | up(&cam->busy_lock); |
| 527 | wait_event_interruptible(cam->wq_stream, |
| 528 | !cam->streaming || |
| 529 | frame->status == FRAME_READY); |
| 530 | down(&cam->busy_lock); |
| 531 | if (signal_pending(current)) |
| 532 | return -ERESTARTSYS; |
| 533 | if(!cam->present) |
| 534 | return -ENOTTY; |
| 535 | } |
| 536 | } |
| 537 | |
| 538 | /****************************************************************************** |
| 539 | * |
| 540 | * ioctl_set_window_size |
| 541 | * |
| 542 | *****************************************************************************/ |
| 543 | static int ioctl_set_window_size(void *arg, struct camera_data *cam, |
| 544 | struct cpia2_fh *fh) |
| 545 | { |
| 546 | /* copy_from_user, check validity, copy to internal structure */ |
| 547 | struct video_window *vw; |
| 548 | int frame, err; |
| 549 | vw = arg; |
| 550 | |
| 551 | if (vw->clipcount != 0) /* clipping not supported */ |
| 552 | return -EINVAL; |
| 553 | |
| 554 | if (vw->clips != NULL) /* clipping not supported */ |
| 555 | return -EINVAL; |
| 556 | |
| 557 | /* Ensure that only this process can change the format. */ |
| 558 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); |
| 559 | if(err != 0) |
| 560 | return err; |
| 561 | |
| 562 | cam->pixelformat = V4L2_PIX_FMT_JPEG; |
| 563 | |
| 564 | /* Be sure to supply the Huffman tables, this isn't MJPEG */ |
| 565 | cam->params.compression.inhibit_htables = 0; |
| 566 | |
| 567 | /* we set the video window to something smaller or equal to what |
| 568 | * is requested by the user??? |
| 569 | */ |
| 570 | DBG("Requested width = %d, height = %d\n", vw->width, vw->height); |
| 571 | if (vw->width != cam->vw.width || vw->height != cam->vw.height) { |
| 572 | cam->vw.width = vw->width; |
| 573 | cam->vw.height = vw->height; |
| 574 | cam->params.roi.width = vw->width; |
| 575 | cam->params.roi.height = vw->height; |
| 576 | cpia2_set_format(cam); |
| 577 | } |
| 578 | |
| 579 | for (frame = 0; frame < cam->num_frames; ++frame) { |
| 580 | if (cam->buffers[frame].status == FRAME_READING) |
| 581 | if ((err = sync(cam, frame)) < 0) |
| 582 | return err; |
| 583 | |
| 584 | cam->buffers[frame].status = FRAME_EMPTY; |
| 585 | } |
| 586 | |
| 587 | return 0; |
| 588 | } |
| 589 | |
| 590 | /****************************************************************************** |
| 591 | * |
| 592 | * ioctl_get_mbuf |
| 593 | * |
| 594 | *****************************************************************************/ |
| 595 | static int ioctl_get_mbuf(void *arg, struct camera_data *cam) |
| 596 | { |
| 597 | struct video_mbuf *vm; |
| 598 | int i; |
| 599 | vm = arg; |
| 600 | |
| 601 | memset(vm, 0, sizeof(*vm)); |
| 602 | vm->size = cam->frame_size*cam->num_frames; |
| 603 | vm->frames = cam->num_frames; |
| 604 | for (i = 0; i < cam->num_frames; i++) |
| 605 | vm->offsets[i] = cam->frame_size * i; |
| 606 | |
| 607 | return 0; |
| 608 | } |
| 609 | |
| 610 | /****************************************************************************** |
| 611 | * |
| 612 | * ioctl_mcapture |
| 613 | * |
| 614 | *****************************************************************************/ |
| 615 | static int ioctl_mcapture(void *arg, struct camera_data *cam, |
| 616 | struct cpia2_fh *fh) |
| 617 | { |
| 618 | struct video_mmap *vm; |
| 619 | int video_size, err; |
| 620 | vm = arg; |
| 621 | |
| 622 | if (vm->frame < 0 || vm->frame >= cam->num_frames) |
| 623 | return -EINVAL; |
| 624 | |
| 625 | /* set video size */ |
| 626 | video_size = cpia2_match_video_size(vm->width, vm->height); |
| 627 | if (cam->video_size < 0) { |
| 628 | return -EINVAL; |
| 629 | } |
| 630 | |
| 631 | /* Ensure that only this process can change the format. */ |
| 632 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); |
| 633 | if(err != 0) |
| 634 | return err; |
| 635 | |
| 636 | if (video_size != cam->video_size) { |
| 637 | cam->video_size = video_size; |
| 638 | cam->params.roi.width = vm->width; |
| 639 | cam->params.roi.height = vm->height; |
| 640 | cpia2_set_format(cam); |
| 641 | } |
| 642 | |
| 643 | if (cam->buffers[vm->frame].status == FRAME_READING) |
| 644 | if ((err=sync(cam, vm->frame)) < 0) |
| 645 | return err; |
| 646 | |
| 647 | cam->buffers[vm->frame].status = FRAME_EMPTY; |
| 648 | |
| 649 | return cpia2_usb_stream_start(cam,cam->params.camera_state.stream_mode); |
| 650 | } |
| 651 | |
| 652 | /****************************************************************************** |
| 653 | * |
| 654 | * ioctl_sync |
| 655 | * |
| 656 | *****************************************************************************/ |
| 657 | static int ioctl_sync(void *arg, struct camera_data *cam) |
| 658 | { |
| 659 | int frame; |
| 660 | |
| 661 | frame = *(int*)arg; |
| 662 | |
| 663 | if (frame < 0 || frame >= cam->num_frames) |
| 664 | return -EINVAL; |
| 665 | |
| 666 | return sync(cam, frame); |
| 667 | } |
| 668 | |
| 669 | |
| 670 | /****************************************************************************** |
| 671 | * |
| 672 | * ioctl_set_gpio |
| 673 | * |
| 674 | *****************************************************************************/ |
| 675 | |
| 676 | static int ioctl_set_gpio(void *arg, struct camera_data *cam) |
| 677 | { |
| 678 | __u32 gpio_val; |
| 679 | |
| 680 | gpio_val = *(__u32*) arg; |
| 681 | |
| 682 | if (gpio_val &~ 0xFFU) |
| 683 | return -EINVAL; |
| 684 | |
| 685 | return cpia2_set_gpio(cam, (unsigned char)gpio_val); |
| 686 | } |
| 687 | |
| 688 | /****************************************************************************** |
| 689 | * |
| 690 | * ioctl_querycap |
| 691 | * |
| 692 | * V4L2 device capabilities |
| 693 | * |
| 694 | *****************************************************************************/ |
| 695 | |
| 696 | static int ioctl_querycap(void *arg, struct camera_data *cam) |
| 697 | { |
| 698 | struct v4l2_capability *vc = arg; |
| 699 | |
| 700 | memset(vc, 0, sizeof(*vc)); |
| 701 | strcpy(vc->driver, "cpia2"); |
| 702 | |
| 703 | if (cam->params.pnp_id.product == 0x151) |
| 704 | strcpy(vc->card, "QX5 Microscope"); |
| 705 | else |
| 706 | strcpy(vc->card, "CPiA2 Camera"); |
| 707 | switch (cam->params.pnp_id.device_type) { |
| 708 | case DEVICE_STV_672: |
| 709 | strcat(vc->card, " (672/"); |
| 710 | break; |
| 711 | case DEVICE_STV_676: |
| 712 | strcat(vc->card, " (676/"); |
| 713 | break; |
| 714 | default: |
| 715 | strcat(vc->card, " (???/"); |
| 716 | break; |
| 717 | } |
| 718 | switch (cam->params.version.sensor_flags) { |
| 719 | case CPIA2_VP_SENSOR_FLAGS_404: |
| 720 | strcat(vc->card, "404)"); |
| 721 | break; |
| 722 | case CPIA2_VP_SENSOR_FLAGS_407: |
| 723 | strcat(vc->card, "407)"); |
| 724 | break; |
| 725 | case CPIA2_VP_SENSOR_FLAGS_409: |
| 726 | strcat(vc->card, "409)"); |
| 727 | break; |
| 728 | case CPIA2_VP_SENSOR_FLAGS_410: |
| 729 | strcat(vc->card, "410)"); |
| 730 | break; |
| 731 | case CPIA2_VP_SENSOR_FLAGS_500: |
| 732 | strcat(vc->card, "500)"); |
| 733 | break; |
| 734 | default: |
| 735 | strcat(vc->card, "???)"); |
| 736 | break; |
| 737 | } |
| 738 | |
| 739 | if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) <0) |
| 740 | memset(vc->bus_info,0, sizeof(vc->bus_info)); |
| 741 | |
| 742 | vc->version = KERNEL_VERSION(CPIA2_MAJ_VER, CPIA2_MIN_VER, |
| 743 | CPIA2_PATCH_VER); |
| 744 | |
| 745 | vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 746 | V4L2_CAP_READWRITE | |
| 747 | V4L2_CAP_STREAMING; |
| 748 | |
| 749 | return 0; |
| 750 | } |
| 751 | |
| 752 | /****************************************************************************** |
| 753 | * |
| 754 | * ioctl_input |
| 755 | * |
| 756 | * V4L2 input get/set/enumerate |
| 757 | * |
| 758 | *****************************************************************************/ |
| 759 | |
| 760 | static int ioctl_input(unsigned int ioclt_nr,void *arg,struct camera_data *cam) |
| 761 | { |
| 762 | struct v4l2_input *i = arg; |
| 763 | |
| 764 | if(ioclt_nr != VIDIOC_G_INPUT) { |
| 765 | if (i->index != 0) |
| 766 | return -EINVAL; |
| 767 | } |
| 768 | |
| 769 | memset(i, 0, sizeof(*i)); |
| 770 | strcpy(i->name, "Camera"); |
| 771 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 772 | |
| 773 | return 0; |
| 774 | } |
| 775 | |
| 776 | /****************************************************************************** |
| 777 | * |
| 778 | * ioctl_enum_fmt |
| 779 | * |
| 780 | * V4L2 format enumerate |
| 781 | * |
| 782 | *****************************************************************************/ |
| 783 | |
| 784 | static int ioctl_enum_fmt(void *arg,struct camera_data *cam) |
| 785 | { |
| 786 | struct v4l2_fmtdesc *f = arg; |
| 787 | int index = f->index; |
| 788 | |
| 789 | if (index < 0 || index > 1) |
| 790 | return -EINVAL; |
| 791 | |
| 792 | memset(f, 0, sizeof(*f)); |
| 793 | f->index = index; |
| 794 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 795 | f->flags = V4L2_FMT_FLAG_COMPRESSED; |
| 796 | switch(index) { |
| 797 | case 0: |
| 798 | strcpy(f->description, "MJPEG"); |
| 799 | f->pixelformat = V4L2_PIX_FMT_MJPEG; |
| 800 | break; |
| 801 | case 1: |
| 802 | strcpy(f->description, "JPEG"); |
| 803 | f->pixelformat = V4L2_PIX_FMT_JPEG; |
| 804 | break; |
| 805 | default: |
| 806 | return -EINVAL; |
| 807 | } |
| 808 | |
| 809 | return 0; |
| 810 | } |
| 811 | |
| 812 | /****************************************************************************** |
| 813 | * |
| 814 | * ioctl_try_fmt |
| 815 | * |
| 816 | * V4L2 format try |
| 817 | * |
| 818 | *****************************************************************************/ |
| 819 | |
| 820 | static int ioctl_try_fmt(void *arg,struct camera_data *cam) |
| 821 | { |
| 822 | struct v4l2_format *f = arg; |
| 823 | |
| 824 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 825 | return -EINVAL; |
| 826 | |
| 827 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG && |
| 828 | f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) |
| 829 | return -EINVAL; |
| 830 | |
| 831 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 832 | f->fmt.pix.bytesperline = 0; |
| 833 | f->fmt.pix.sizeimage = cam->frame_size; |
| 834 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; |
| 835 | f->fmt.pix.priv = 0; |
| 836 | |
| 837 | switch (cpia2_match_video_size(f->fmt.pix.width, f->fmt.pix.height)) { |
| 838 | case VIDEOSIZE_VGA: |
| 839 | f->fmt.pix.width = 640; |
| 840 | f->fmt.pix.height = 480; |
| 841 | break; |
| 842 | case VIDEOSIZE_CIF: |
| 843 | f->fmt.pix.width = 352; |
| 844 | f->fmt.pix.height = 288; |
| 845 | break; |
| 846 | case VIDEOSIZE_QVGA: |
| 847 | f->fmt.pix.width = 320; |
| 848 | f->fmt.pix.height = 240; |
| 849 | break; |
| 850 | case VIDEOSIZE_288_216: |
| 851 | f->fmt.pix.width = 288; |
| 852 | f->fmt.pix.height = 216; |
| 853 | break; |
| 854 | case VIDEOSIZE_256_192: |
| 855 | f->fmt.pix.width = 256; |
| 856 | f->fmt.pix.height = 192; |
| 857 | break; |
| 858 | case VIDEOSIZE_224_168: |
| 859 | f->fmt.pix.width = 224; |
| 860 | f->fmt.pix.height = 168; |
| 861 | break; |
| 862 | case VIDEOSIZE_192_144: |
| 863 | f->fmt.pix.width = 192; |
| 864 | f->fmt.pix.height = 144; |
| 865 | break; |
| 866 | case VIDEOSIZE_QCIF: |
| 867 | default: |
| 868 | f->fmt.pix.width = 176; |
| 869 | f->fmt.pix.height = 144; |
| 870 | break; |
| 871 | } |
| 872 | |
| 873 | return 0; |
| 874 | } |
| 875 | |
| 876 | /****************************************************************************** |
| 877 | * |
| 878 | * ioctl_set_fmt |
| 879 | * |
| 880 | * V4L2 format set |
| 881 | * |
| 882 | *****************************************************************************/ |
| 883 | |
| 884 | static int ioctl_set_fmt(void *arg,struct camera_data *cam, struct cpia2_fh *fh) |
| 885 | { |
| 886 | struct v4l2_format *f = arg; |
| 887 | int err, frame; |
| 888 | |
| 889 | err = ioctl_try_fmt(arg, cam); |
| 890 | if(err != 0) |
| 891 | return err; |
| 892 | |
| 893 | /* Ensure that only this process can change the format. */ |
| 894 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); |
| 895 | if(err != 0) { |
| 896 | return err; |
| 897 | } |
| 898 | |
| 899 | cam->pixelformat = f->fmt.pix.pixelformat; |
| 900 | |
| 901 | /* NOTE: This should be set to 1 for MJPEG, but some apps don't handle |
| 902 | * the missing Huffman table properly. */ |
| 903 | cam->params.compression.inhibit_htables = 0; |
| 904 | /*f->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG;*/ |
| 905 | |
| 906 | /* we set the video window to something smaller or equal to what |
| 907 | * is requested by the user??? |
| 908 | */ |
| 909 | DBG("Requested width = %d, height = %d\n", |
| 910 | f->fmt.pix.width, f->fmt.pix.height); |
| 911 | if (f->fmt.pix.width != cam->vw.width || |
| 912 | f->fmt.pix.height != cam->vw.height) { |
| 913 | cam->vw.width = f->fmt.pix.width; |
| 914 | cam->vw.height = f->fmt.pix.height; |
| 915 | cam->params.roi.width = f->fmt.pix.width; |
| 916 | cam->params.roi.height = f->fmt.pix.height; |
| 917 | cpia2_set_format(cam); |
| 918 | } |
| 919 | |
| 920 | for (frame = 0; frame < cam->num_frames; ++frame) { |
| 921 | if (cam->buffers[frame].status == FRAME_READING) |
| 922 | if ((err = sync(cam, frame)) < 0) |
| 923 | return err; |
| 924 | |
| 925 | cam->buffers[frame].status = FRAME_EMPTY; |
| 926 | } |
| 927 | |
| 928 | return 0; |
| 929 | } |
| 930 | |
| 931 | /****************************************************************************** |
| 932 | * |
| 933 | * ioctl_get_fmt |
| 934 | * |
| 935 | * V4L2 format get |
| 936 | * |
| 937 | *****************************************************************************/ |
| 938 | |
| 939 | static int ioctl_get_fmt(void *arg,struct camera_data *cam) |
| 940 | { |
| 941 | struct v4l2_format *f = arg; |
| 942 | |
| 943 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 944 | return -EINVAL; |
| 945 | |
| 946 | f->fmt.pix.width = cam->vw.width; |
| 947 | f->fmt.pix.height = cam->vw.height; |
| 948 | f->fmt.pix.pixelformat = cam->pixelformat; |
| 949 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 950 | f->fmt.pix.bytesperline = 0; |
| 951 | f->fmt.pix.sizeimage = cam->frame_size; |
| 952 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; |
| 953 | f->fmt.pix.priv = 0; |
| 954 | |
| 955 | return 0; |
| 956 | } |
| 957 | |
| 958 | /****************************************************************************** |
| 959 | * |
| 960 | * ioctl_cropcap |
| 961 | * |
| 962 | * V4L2 query cropping capabilities |
| 963 | * NOTE: cropping is currently disabled |
| 964 | * |
| 965 | *****************************************************************************/ |
| 966 | |
| 967 | static int ioctl_cropcap(void *arg,struct camera_data *cam) |
| 968 | { |
| 969 | struct v4l2_cropcap *c = arg; |
| 970 | |
| 971 | if (c->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 972 | return -EINVAL; |
| 973 | |
| 974 | c->bounds.left = 0; |
| 975 | c->bounds.top = 0; |
| 976 | c->bounds.width = cam->vw.width; |
| 977 | c->bounds.height = cam->vw.height; |
| 978 | c->defrect.left = 0; |
| 979 | c->defrect.top = 0; |
| 980 | c->defrect.width = cam->vw.width; |
| 981 | c->defrect.height = cam->vw.height; |
| 982 | c->pixelaspect.numerator = 1; |
| 983 | c->pixelaspect.denominator = 1; |
| 984 | |
| 985 | return 0; |
| 986 | } |
| 987 | |
| 988 | /****************************************************************************** |
| 989 | * |
| 990 | * ioctl_queryctrl |
| 991 | * |
| 992 | * V4L2 query possible control variables |
| 993 | * |
| 994 | *****************************************************************************/ |
| 995 | |
| 996 | static int ioctl_queryctrl(void *arg,struct camera_data *cam) |
| 997 | { |
| 998 | struct v4l2_queryctrl *c = arg; |
| 999 | int i; |
| 1000 | |
| 1001 | for(i=0; i<NUM_CONTROLS; ++i) { |
| 1002 | if(c->id == controls[i].id) { |
| 1003 | memcpy(c, controls+i, sizeof(*c)); |
| 1004 | break; |
| 1005 | } |
| 1006 | } |
| 1007 | |
| 1008 | if(i == NUM_CONTROLS) |
| 1009 | return -EINVAL; |
| 1010 | |
| 1011 | /* Some devices have additional limitations */ |
| 1012 | switch(c->id) { |
| 1013 | case V4L2_CID_BRIGHTNESS: |
| 1014 | /*** |
| 1015 | * Don't let the register be set to zero - bug in VP4 |
| 1016 | * flash of full brightness |
| 1017 | ***/ |
| 1018 | if (cam->params.pnp_id.device_type == DEVICE_STV_672) |
| 1019 | c->minimum = 1; |
| 1020 | break; |
| 1021 | case V4L2_CID_VFLIP: |
| 1022 | // VP5 Only |
| 1023 | if(cam->params.pnp_id.device_type == DEVICE_STV_672) |
| 1024 | c->flags |= V4L2_CTRL_FLAG_DISABLED; |
| 1025 | break; |
| 1026 | case CPIA2_CID_FRAMERATE: |
| 1027 | if(cam->params.pnp_id.device_type == DEVICE_STV_672 && |
| 1028 | cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ |
| 1029 | // Maximum 15fps |
| 1030 | int i; |
| 1031 | for(i=0; i<c->maximum; ++i) { |
| 1032 | if(framerate_controls[i].value == |
| 1033 | CPIA2_VP_FRAMERATE_15) { |
| 1034 | c->maximum = i; |
| 1035 | c->default_value = i; |
| 1036 | } |
| 1037 | } |
| 1038 | } |
| 1039 | break; |
| 1040 | case CPIA2_CID_FLICKER_MODE: |
| 1041 | // Flicker control only valid for 672. |
| 1042 | if(cam->params.pnp_id.device_type != DEVICE_STV_672) |
| 1043 | c->flags |= V4L2_CTRL_FLAG_DISABLED; |
| 1044 | break; |
| 1045 | case CPIA2_CID_LIGHTS: |
| 1046 | // Light control only valid for the QX5 Microscope. |
| 1047 | if(cam->params.pnp_id.product != 0x151) |
| 1048 | c->flags |= V4L2_CTRL_FLAG_DISABLED; |
| 1049 | break; |
| 1050 | default: |
| 1051 | break; |
| 1052 | } |
| 1053 | |
| 1054 | return 0; |
| 1055 | } |
| 1056 | |
| 1057 | /****************************************************************************** |
| 1058 | * |
| 1059 | * ioctl_querymenu |
| 1060 | * |
| 1061 | * V4L2 query possible control variables |
| 1062 | * |
| 1063 | *****************************************************************************/ |
| 1064 | |
| 1065 | static int ioctl_querymenu(void *arg,struct camera_data *cam) |
| 1066 | { |
| 1067 | struct v4l2_querymenu *m = arg; |
| 1068 | |
| 1069 | memset(m->name, 0, sizeof(m->name)); |
| 1070 | m->reserved = 0; |
| 1071 | |
| 1072 | switch(m->id) { |
| 1073 | case CPIA2_CID_FLICKER_MODE: |
| 1074 | if(m->index < 0 || m->index >= NUM_FLICKER_CONTROLS) |
| 1075 | return -EINVAL; |
| 1076 | |
| 1077 | strcpy(m->name, flicker_controls[m->index].name); |
| 1078 | break; |
| 1079 | case CPIA2_CID_FRAMERATE: |
| 1080 | { |
| 1081 | int maximum = NUM_FRAMERATE_CONTROLS - 1; |
| 1082 | if(cam->params.pnp_id.device_type == DEVICE_STV_672 && |
| 1083 | cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ |
| 1084 | // Maximum 15fps |
| 1085 | int i; |
| 1086 | for(i=0; i<maximum; ++i) { |
| 1087 | if(framerate_controls[i].value == |
| 1088 | CPIA2_VP_FRAMERATE_15) |
| 1089 | maximum = i; |
| 1090 | } |
| 1091 | } |
| 1092 | if(m->index < 0 || m->index > maximum) |
| 1093 | return -EINVAL; |
| 1094 | |
| 1095 | strcpy(m->name, framerate_controls[m->index].name); |
| 1096 | break; |
| 1097 | } |
| 1098 | case CPIA2_CID_LIGHTS: |
| 1099 | if(m->index < 0 || m->index >= NUM_LIGHTS_CONTROLS) |
| 1100 | return -EINVAL; |
| 1101 | |
| 1102 | strcpy(m->name, lights_controls[m->index].name); |
| 1103 | break; |
| 1104 | default: |
| 1105 | return -EINVAL; |
| 1106 | } |
| 1107 | |
| 1108 | return 0; |
| 1109 | } |
| 1110 | |
| 1111 | /****************************************************************************** |
| 1112 | * |
| 1113 | * ioctl_g_ctrl |
| 1114 | * |
| 1115 | * V4L2 get the value of a control variable |
| 1116 | * |
| 1117 | *****************************************************************************/ |
| 1118 | |
| 1119 | static int ioctl_g_ctrl(void *arg,struct camera_data *cam) |
| 1120 | { |
| 1121 | struct v4l2_control *c = arg; |
| 1122 | |
| 1123 | switch(c->id) { |
| 1124 | case V4L2_CID_BRIGHTNESS: |
| 1125 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_BRIGHTNESS, |
| 1126 | TRANSFER_READ, 0); |
| 1127 | c->value = cam->params.color_params.brightness; |
| 1128 | break; |
| 1129 | case V4L2_CID_CONTRAST: |
| 1130 | cpia2_do_command(cam, CPIA2_CMD_GET_CONTRAST, |
| 1131 | TRANSFER_READ, 0); |
| 1132 | c->value = cam->params.color_params.contrast; |
| 1133 | break; |
| 1134 | case V4L2_CID_SATURATION: |
| 1135 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_SATURATION, |
| 1136 | TRANSFER_READ, 0); |
| 1137 | c->value = cam->params.color_params.saturation; |
| 1138 | break; |
| 1139 | case V4L2_CID_HFLIP: |
| 1140 | cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, |
| 1141 | TRANSFER_READ, 0); |
| 1142 | c->value = (cam->params.vp_params.user_effects & |
| 1143 | CPIA2_VP_USER_EFFECTS_MIRROR) != 0; |
| 1144 | break; |
| 1145 | case V4L2_CID_VFLIP: |
| 1146 | cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, |
| 1147 | TRANSFER_READ, 0); |
| 1148 | c->value = (cam->params.vp_params.user_effects & |
| 1149 | CPIA2_VP_USER_EFFECTS_FLIP) != 0; |
| 1150 | break; |
| 1151 | case CPIA2_CID_TARGET_KB: |
| 1152 | c->value = cam->params.vc_params.target_kb; |
| 1153 | break; |
| 1154 | case CPIA2_CID_GPIO: |
| 1155 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, |
| 1156 | TRANSFER_READ, 0); |
| 1157 | c->value = cam->params.vp_params.gpio_data; |
| 1158 | break; |
| 1159 | case CPIA2_CID_FLICKER_MODE: |
| 1160 | { |
| 1161 | int i, mode; |
| 1162 | cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES, |
| 1163 | TRANSFER_READ, 0); |
| 1164 | if(cam->params.flicker_control.cam_register & |
| 1165 | CPIA2_VP_FLICKER_MODES_NEVER_FLICKER) { |
| 1166 | mode = NEVER_FLICKER; |
| 1167 | } else { |
| 1168 | if(cam->params.flicker_control.cam_register & |
| 1169 | CPIA2_VP_FLICKER_MODES_50HZ) { |
| 1170 | mode = FLICKER_50; |
| 1171 | } else { |
| 1172 | mode = FLICKER_60; |
| 1173 | } |
| 1174 | } |
| 1175 | for(i=0; i<NUM_FLICKER_CONTROLS; i++) { |
| 1176 | if(flicker_controls[i].value == mode) { |
| 1177 | c->value = i; |
| 1178 | break; |
| 1179 | } |
| 1180 | } |
| 1181 | if(i == NUM_FLICKER_CONTROLS) |
| 1182 | return -EINVAL; |
| 1183 | break; |
| 1184 | } |
| 1185 | case CPIA2_CID_FRAMERATE: |
| 1186 | { |
| 1187 | int maximum = NUM_FRAMERATE_CONTROLS - 1; |
| 1188 | int i; |
| 1189 | for(i=0; i<= maximum; i++) { |
| 1190 | if(cam->params.vp_params.frame_rate == |
| 1191 | framerate_controls[i].value) |
| 1192 | break; |
| 1193 | } |
| 1194 | if(i > maximum) |
| 1195 | return -EINVAL; |
| 1196 | c->value = i; |
| 1197 | break; |
| 1198 | } |
| 1199 | case CPIA2_CID_USB_ALT: |
| 1200 | c->value = cam->params.camera_state.stream_mode; |
| 1201 | break; |
| 1202 | case CPIA2_CID_LIGHTS: |
| 1203 | { |
| 1204 | int i; |
| 1205 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, |
| 1206 | TRANSFER_READ, 0); |
| 1207 | for(i=0; i<NUM_LIGHTS_CONTROLS; i++) { |
| 1208 | if((cam->params.vp_params.gpio_data&GPIO_LIGHTS_MASK) == |
| 1209 | lights_controls[i].value) { |
| 1210 | break; |
| 1211 | } |
| 1212 | } |
| 1213 | if(i == NUM_LIGHTS_CONTROLS) |
| 1214 | return -EINVAL; |
| 1215 | c->value = i; |
| 1216 | break; |
| 1217 | } |
| 1218 | case CPIA2_CID_RESET_CAMERA: |
| 1219 | return -EINVAL; |
| 1220 | default: |
| 1221 | return -EINVAL; |
| 1222 | } |
| 1223 | |
| 1224 | DBG("Get control id:%d, value:%d\n", c->id, c->value); |
| 1225 | |
| 1226 | return 0; |
| 1227 | } |
| 1228 | |
| 1229 | /****************************************************************************** |
| 1230 | * |
| 1231 | * ioctl_s_ctrl |
| 1232 | * |
| 1233 | * V4L2 set the value of a control variable |
| 1234 | * |
| 1235 | *****************************************************************************/ |
| 1236 | |
| 1237 | static int ioctl_s_ctrl(void *arg,struct camera_data *cam) |
| 1238 | { |
| 1239 | struct v4l2_control *c = arg; |
| 1240 | int i; |
| 1241 | int retval = 0; |
| 1242 | |
| 1243 | DBG("Set control id:%d, value:%d\n", c->id, c->value); |
| 1244 | |
| 1245 | /* Check that the value is in range */ |
| 1246 | for(i=0; i<NUM_CONTROLS; i++) { |
| 1247 | if(c->id == controls[i].id) { |
| 1248 | if(c->value < controls[i].minimum || |
| 1249 | c->value > controls[i].maximum) { |
| 1250 | return -EINVAL; |
| 1251 | } |
| 1252 | break; |
| 1253 | } |
| 1254 | } |
| 1255 | if(i == NUM_CONTROLS) |
| 1256 | return -EINVAL; |
| 1257 | |
| 1258 | switch(c->id) { |
| 1259 | case V4L2_CID_BRIGHTNESS: |
| 1260 | cpia2_set_brightness(cam, c->value); |
| 1261 | break; |
| 1262 | case V4L2_CID_CONTRAST: |
| 1263 | cpia2_set_contrast(cam, c->value); |
| 1264 | break; |
| 1265 | case V4L2_CID_SATURATION: |
| 1266 | cpia2_set_saturation(cam, c->value); |
| 1267 | break; |
| 1268 | case V4L2_CID_HFLIP: |
| 1269 | cpia2_set_property_mirror(cam, c->value); |
| 1270 | break; |
| 1271 | case V4L2_CID_VFLIP: |
| 1272 | cpia2_set_property_flip(cam, c->value); |
| 1273 | break; |
| 1274 | case CPIA2_CID_TARGET_KB: |
| 1275 | retval = cpia2_set_target_kb(cam, c->value); |
| 1276 | break; |
| 1277 | case CPIA2_CID_GPIO: |
| 1278 | retval = cpia2_set_gpio(cam, c->value); |
| 1279 | break; |
| 1280 | case CPIA2_CID_FLICKER_MODE: |
| 1281 | retval = cpia2_set_flicker_mode(cam, |
| 1282 | flicker_controls[c->value].value); |
| 1283 | break; |
| 1284 | case CPIA2_CID_FRAMERATE: |
| 1285 | retval = cpia2_set_fps(cam, framerate_controls[c->value].value); |
| 1286 | break; |
| 1287 | case CPIA2_CID_USB_ALT: |
| 1288 | retval = cpia2_usb_change_streaming_alternate(cam, c->value); |
| 1289 | break; |
| 1290 | case CPIA2_CID_LIGHTS: |
| 1291 | retval = cpia2_set_gpio(cam, lights_controls[c->value].value); |
| 1292 | break; |
| 1293 | case CPIA2_CID_RESET_CAMERA: |
| 1294 | cpia2_usb_stream_pause(cam); |
| 1295 | cpia2_reset_camera(cam); |
| 1296 | cpia2_usb_stream_resume(cam); |
| 1297 | break; |
| 1298 | default: |
| 1299 | retval = -EINVAL; |
| 1300 | } |
| 1301 | |
| 1302 | return retval; |
| 1303 | } |
| 1304 | |
| 1305 | /****************************************************************************** |
| 1306 | * |
| 1307 | * ioctl_g_jpegcomp |
| 1308 | * |
| 1309 | * V4L2 get the JPEG compression parameters |
| 1310 | * |
| 1311 | *****************************************************************************/ |
| 1312 | |
| 1313 | static int ioctl_g_jpegcomp(void *arg,struct camera_data *cam) |
| 1314 | { |
| 1315 | struct v4l2_jpegcompression *parms = arg; |
| 1316 | |
| 1317 | memset(parms, 0, sizeof(*parms)); |
| 1318 | |
| 1319 | parms->quality = 80; // TODO: Can this be made meaningful? |
| 1320 | |
| 1321 | parms->jpeg_markers = V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI; |
| 1322 | if(!cam->params.compression.inhibit_htables) { |
| 1323 | parms->jpeg_markers |= V4L2_JPEG_MARKER_DHT; |
| 1324 | } |
| 1325 | |
| 1326 | parms->APPn = cam->APPn; |
| 1327 | parms->APP_len = cam->APP_len; |
| 1328 | if(cam->APP_len > 0) { |
| 1329 | memcpy(parms->APP_data, cam->APP_data, cam->APP_len); |
| 1330 | parms->jpeg_markers |= V4L2_JPEG_MARKER_APP; |
| 1331 | } |
| 1332 | |
| 1333 | parms->COM_len = cam->COM_len; |
| 1334 | if(cam->COM_len > 0) { |
| 1335 | memcpy(parms->COM_data, cam->COM_data, cam->COM_len); |
| 1336 | parms->jpeg_markers |= JPEG_MARKER_COM; |
| 1337 | } |
| 1338 | |
| 1339 | DBG("G_JPEGCOMP APP_len:%d COM_len:%d\n", |
| 1340 | parms->APP_len, parms->COM_len); |
| 1341 | |
| 1342 | return 0; |
| 1343 | } |
| 1344 | |
| 1345 | /****************************************************************************** |
| 1346 | * |
| 1347 | * ioctl_s_jpegcomp |
| 1348 | * |
| 1349 | * V4L2 set the JPEG compression parameters |
| 1350 | * NOTE: quality and some jpeg_markers are ignored. |
| 1351 | * |
| 1352 | *****************************************************************************/ |
| 1353 | |
| 1354 | static int ioctl_s_jpegcomp(void *arg,struct camera_data *cam) |
| 1355 | { |
| 1356 | struct v4l2_jpegcompression *parms = arg; |
| 1357 | |
| 1358 | DBG("S_JPEGCOMP APP_len:%d COM_len:%d\n", |
| 1359 | parms->APP_len, parms->COM_len); |
| 1360 | |
| 1361 | cam->params.compression.inhibit_htables = |
| 1362 | !(parms->jpeg_markers & V4L2_JPEG_MARKER_DHT); |
| 1363 | |
| 1364 | if(parms->APP_len != 0) { |
| 1365 | if(parms->APP_len > 0 && |
| 1366 | parms->APP_len <= sizeof(cam->APP_data) && |
| 1367 | parms->APPn >= 0 && parms->APPn <= 15) { |
| 1368 | cam->APPn = parms->APPn; |
| 1369 | cam->APP_len = parms->APP_len; |
| 1370 | memcpy(cam->APP_data, parms->APP_data, parms->APP_len); |
| 1371 | } else { |
| 1372 | LOG("Bad APPn Params n=%d len=%d\n", |
| 1373 | parms->APPn, parms->APP_len); |
| 1374 | return -EINVAL; |
| 1375 | } |
| 1376 | } else { |
| 1377 | cam->APP_len = 0; |
| 1378 | } |
| 1379 | |
| 1380 | if(parms->COM_len != 0) { |
| 1381 | if(parms->COM_len > 0 && |
| 1382 | parms->COM_len <= sizeof(cam->COM_data)) { |
| 1383 | cam->COM_len = parms->COM_len; |
| 1384 | memcpy(cam->COM_data, parms->COM_data, parms->COM_len); |
| 1385 | } else { |
| 1386 | LOG("Bad COM_len=%d\n", parms->COM_len); |
| 1387 | return -EINVAL; |
| 1388 | } |
| 1389 | } |
| 1390 | |
| 1391 | return 0; |
| 1392 | } |
| 1393 | |
| 1394 | /****************************************************************************** |
| 1395 | * |
| 1396 | * ioctl_reqbufs |
| 1397 | * |
| 1398 | * V4L2 Initiate memory mapping. |
| 1399 | * NOTE: The user's request is ignored. For now the buffers are fixed. |
| 1400 | * |
| 1401 | *****************************************************************************/ |
| 1402 | |
| 1403 | static int ioctl_reqbufs(void *arg,struct camera_data *cam) |
| 1404 | { |
| 1405 | struct v4l2_requestbuffers *req = arg; |
| 1406 | |
| 1407 | if(req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1408 | req->memory != V4L2_MEMORY_MMAP) |
| 1409 | return -EINVAL; |
| 1410 | |
| 1411 | DBG("REQBUFS requested:%d returning:%d\n", req->count, cam->num_frames); |
| 1412 | req->count = cam->num_frames; |
| 1413 | memset(&req->reserved, 0, sizeof(req->reserved)); |
| 1414 | |
| 1415 | return 0; |
| 1416 | } |
| 1417 | |
| 1418 | /****************************************************************************** |
| 1419 | * |
| 1420 | * ioctl_querybuf |
| 1421 | * |
| 1422 | * V4L2 Query memory buffer status. |
| 1423 | * |
| 1424 | *****************************************************************************/ |
| 1425 | |
| 1426 | static int ioctl_querybuf(void *arg,struct camera_data *cam) |
| 1427 | { |
| 1428 | struct v4l2_buffer *buf = arg; |
| 1429 | |
| 1430 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1431 | buf->index > cam->num_frames) |
| 1432 | return -EINVAL; |
| 1433 | |
| 1434 | buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; |
| 1435 | buf->length = cam->frame_size; |
| 1436 | |
| 1437 | buf->memory = V4L2_MEMORY_MMAP; |
| 1438 | |
| 1439 | if(cam->mmapped) |
| 1440 | buf->flags = V4L2_BUF_FLAG_MAPPED; |
| 1441 | else |
| 1442 | buf->flags = 0; |
| 1443 | |
| 1444 | switch (cam->buffers[buf->index].status) { |
| 1445 | case FRAME_EMPTY: |
| 1446 | case FRAME_ERROR: |
| 1447 | case FRAME_READING: |
| 1448 | buf->bytesused = 0; |
| 1449 | buf->flags = V4L2_BUF_FLAG_QUEUED; |
| 1450 | break; |
| 1451 | case FRAME_READY: |
| 1452 | buf->bytesused = cam->buffers[buf->index].length; |
| 1453 | buf->timestamp = cam->buffers[buf->index].timestamp; |
| 1454 | buf->sequence = cam->buffers[buf->index].seq; |
| 1455 | buf->flags = V4L2_BUF_FLAG_DONE; |
| 1456 | break; |
| 1457 | } |
| 1458 | |
| 1459 | DBG("QUERYBUF index:%d offset:%d flags:%d seq:%d bytesused:%d\n", |
| 1460 | buf->index, buf->m.offset, buf->flags, buf->sequence, |
| 1461 | buf->bytesused); |
| 1462 | |
| 1463 | return 0; |
| 1464 | } |
| 1465 | |
| 1466 | /****************************************************************************** |
| 1467 | * |
| 1468 | * ioctl_qbuf |
| 1469 | * |
| 1470 | * V4L2 User is freeing buffer |
| 1471 | * |
| 1472 | *****************************************************************************/ |
| 1473 | |
| 1474 | static int ioctl_qbuf(void *arg,struct camera_data *cam) |
| 1475 | { |
| 1476 | struct v4l2_buffer *buf = arg; |
| 1477 | |
| 1478 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1479 | buf->memory != V4L2_MEMORY_MMAP || |
| 1480 | buf->index > cam->num_frames) |
| 1481 | return -EINVAL; |
| 1482 | |
| 1483 | DBG("QBUF #%d\n", buf->index); |
| 1484 | |
| 1485 | if(cam->buffers[buf->index].status == FRAME_READY) |
| 1486 | cam->buffers[buf->index].status = FRAME_EMPTY; |
| 1487 | |
| 1488 | return 0; |
| 1489 | } |
| 1490 | |
| 1491 | /****************************************************************************** |
| 1492 | * |
| 1493 | * find_earliest_filled_buffer |
| 1494 | * |
| 1495 | * Helper for ioctl_dqbuf. Find the next ready buffer. |
| 1496 | * |
| 1497 | *****************************************************************************/ |
| 1498 | |
| 1499 | static int find_earliest_filled_buffer(struct camera_data *cam) |
| 1500 | { |
| 1501 | int i; |
| 1502 | int found = -1; |
| 1503 | for (i=0; i<cam->num_frames; i++) { |
| 1504 | if(cam->buffers[i].status == FRAME_READY) { |
| 1505 | if(found < 0) { |
| 1506 | found = i; |
| 1507 | } else { |
| 1508 | /* find which buffer is earlier */ |
| 1509 | struct timeval *tv1, *tv2; |
| 1510 | tv1 = &cam->buffers[i].timestamp; |
| 1511 | tv2 = &cam->buffers[found].timestamp; |
| 1512 | if(tv1->tv_sec < tv2->tv_sec || |
| 1513 | (tv1->tv_sec == tv2->tv_sec && |
| 1514 | tv1->tv_usec < tv2->tv_usec)) |
| 1515 | found = i; |
| 1516 | } |
| 1517 | } |
| 1518 | } |
| 1519 | return found; |
| 1520 | } |
| 1521 | |
| 1522 | /****************************************************************************** |
| 1523 | * |
| 1524 | * ioctl_dqbuf |
| 1525 | * |
| 1526 | * V4L2 User is asking for a filled buffer. |
| 1527 | * |
| 1528 | *****************************************************************************/ |
| 1529 | |
| 1530 | static int ioctl_dqbuf(void *arg,struct camera_data *cam, struct file *file) |
| 1531 | { |
| 1532 | struct v4l2_buffer *buf = arg; |
| 1533 | int frame; |
| 1534 | |
| 1535 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1536 | buf->memory != V4L2_MEMORY_MMAP) |
| 1537 | return -EINVAL; |
| 1538 | |
| 1539 | frame = find_earliest_filled_buffer(cam); |
| 1540 | |
| 1541 | if(frame < 0 && file->f_flags&O_NONBLOCK) |
| 1542 | return -EAGAIN; |
| 1543 | |
| 1544 | if(frame < 0) { |
| 1545 | /* Wait for a frame to become available */ |
| 1546 | struct framebuf *cb=cam->curbuff; |
| 1547 | up(&cam->busy_lock); |
| 1548 | wait_event_interruptible(cam->wq_stream, |
| 1549 | !cam->present || |
| 1550 | (cb=cam->curbuff)->status == FRAME_READY); |
| 1551 | down(&cam->busy_lock); |
| 1552 | if (signal_pending(current)) |
| 1553 | return -ERESTARTSYS; |
| 1554 | if(!cam->present) |
| 1555 | return -ENOTTY; |
| 1556 | frame = cb->num; |
| 1557 | } |
| 1558 | |
| 1559 | |
| 1560 | buf->index = frame; |
| 1561 | buf->bytesused = cam->buffers[buf->index].length; |
| 1562 | buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE; |
| 1563 | buf->field = V4L2_FIELD_NONE; |
| 1564 | buf->timestamp = cam->buffers[buf->index].timestamp; |
| 1565 | buf->sequence = cam->buffers[buf->index].seq; |
| 1566 | buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; |
| 1567 | buf->length = cam->frame_size; |
| 1568 | buf->input = 0; |
| 1569 | buf->reserved = 0; |
| 1570 | memset(&buf->timecode, 0, sizeof(buf->timecode)); |
| 1571 | |
| 1572 | DBG("DQBUF #%d status:%d seq:%d length:%d\n", buf->index, |
| 1573 | cam->buffers[buf->index].status, buf->sequence, buf->bytesused); |
| 1574 | |
| 1575 | return 0; |
| 1576 | } |
| 1577 | |
| 1578 | /****************************************************************************** |
| 1579 | * |
| 1580 | * cpia2_ioctl |
| 1581 | * |
| 1582 | *****************************************************************************/ |
| 1583 | static int cpia2_do_ioctl(struct inode *inode, struct file *file, |
| 1584 | unsigned int ioctl_nr, void *arg) |
| 1585 | { |
| 1586 | struct video_device *dev = video_devdata(file); |
| 1587 | struct camera_data *cam = video_get_drvdata(dev); |
| 1588 | int retval = 0; |
| 1589 | |
| 1590 | if (!cam) |
| 1591 | return -ENOTTY; |
| 1592 | |
| 1593 | /* make this _really_ smp-safe */ |
| 1594 | if (down_interruptible(&cam->busy_lock)) |
| 1595 | return -ERESTARTSYS; |
| 1596 | |
| 1597 | if (!cam->present) { |
| 1598 | up(&cam->busy_lock); |
| 1599 | return -ENODEV; |
| 1600 | } |
| 1601 | |
| 1602 | /* Priority check */ |
| 1603 | switch (ioctl_nr) { |
| 1604 | case VIDIOCSWIN: |
| 1605 | case VIDIOCMCAPTURE: |
| 1606 | case VIDIOC_S_FMT: |
| 1607 | { |
| 1608 | struct cpia2_fh *fh = file->private_data; |
| 1609 | retval = v4l2_prio_check(&cam->prio, &fh->prio); |
| 1610 | if(retval) { |
| 1611 | up(&cam->busy_lock); |
| 1612 | return retval; |
| 1613 | } |
| 1614 | break; |
| 1615 | } |
| 1616 | case VIDIOCGMBUF: |
| 1617 | case VIDIOCSYNC: |
| 1618 | { |
| 1619 | struct cpia2_fh *fh = file->private_data; |
| 1620 | if(fh->prio != V4L2_PRIORITY_RECORD) { |
| 1621 | up(&cam->busy_lock); |
| 1622 | return -EBUSY; |
| 1623 | } |
| 1624 | break; |
| 1625 | } |
| 1626 | default: |
| 1627 | break; |
| 1628 | } |
| 1629 | |
| 1630 | switch (ioctl_nr) { |
| 1631 | case VIDIOCGCAP: /* query capabilites */ |
| 1632 | retval = ioctl_cap_query(arg, cam); |
| 1633 | break; |
| 1634 | |
| 1635 | case VIDIOCGCHAN: /* get video source - we are a camera, nothing else */ |
| 1636 | retval = ioctl_get_channel(arg); |
| 1637 | break; |
| 1638 | case VIDIOCSCHAN: /* set video source - we are a camera, nothing else */ |
| 1639 | retval = ioctl_set_channel(arg); |
| 1640 | break; |
| 1641 | case VIDIOCGPICT: /* image properties */ |
| 1642 | memcpy(arg, &cam->vp, sizeof(struct video_picture)); |
| 1643 | break; |
| 1644 | case VIDIOCSPICT: |
| 1645 | retval = ioctl_set_image_prop(arg, cam); |
| 1646 | break; |
| 1647 | case VIDIOCGWIN: /* get/set capture window */ |
| 1648 | memcpy(arg, &cam->vw, sizeof(struct video_window)); |
| 1649 | break; |
| 1650 | case VIDIOCSWIN: |
| 1651 | retval = ioctl_set_window_size(arg, cam, file->private_data); |
| 1652 | break; |
| 1653 | case VIDIOCGMBUF: /* mmap interface */ |
| 1654 | retval = ioctl_get_mbuf(arg, cam); |
| 1655 | break; |
| 1656 | case VIDIOCMCAPTURE: |
| 1657 | retval = ioctl_mcapture(arg, cam, file->private_data); |
| 1658 | break; |
| 1659 | case VIDIOCSYNC: |
| 1660 | retval = ioctl_sync(arg, cam); |
| 1661 | break; |
| 1662 | /* pointless to implement overlay with this camera */ |
| 1663 | case VIDIOCCAPTURE: |
| 1664 | case VIDIOCGFBUF: |
| 1665 | case VIDIOCSFBUF: |
| 1666 | case VIDIOCKEY: |
| 1667 | retval = -EINVAL; |
| 1668 | break; |
| 1669 | |
| 1670 | /* tuner interface - we have none */ |
| 1671 | case VIDIOCGTUNER: |
| 1672 | case VIDIOCSTUNER: |
| 1673 | case VIDIOCGFREQ: |
| 1674 | case VIDIOCSFREQ: |
| 1675 | retval = -EINVAL; |
| 1676 | break; |
| 1677 | |
| 1678 | /* audio interface - we have none */ |
| 1679 | case VIDIOCGAUDIO: |
| 1680 | case VIDIOCSAUDIO: |
| 1681 | retval = -EINVAL; |
| 1682 | break; |
| 1683 | |
| 1684 | /* CPIA2 extension to Video4Linux API */ |
| 1685 | case CPIA2_IOC_SET_GPIO: |
| 1686 | retval = ioctl_set_gpio(arg, cam); |
| 1687 | break; |
| 1688 | case VIDIOC_QUERYCAP: |
| 1689 | retval = ioctl_querycap(arg,cam); |
| 1690 | break; |
| 1691 | |
| 1692 | case VIDIOC_ENUMINPUT: |
| 1693 | case VIDIOC_G_INPUT: |
| 1694 | case VIDIOC_S_INPUT: |
| 1695 | retval = ioctl_input(ioctl_nr, arg,cam); |
| 1696 | break; |
| 1697 | |
| 1698 | case VIDIOC_ENUM_FMT: |
| 1699 | retval = ioctl_enum_fmt(arg,cam); |
| 1700 | break; |
| 1701 | case VIDIOC_TRY_FMT: |
| 1702 | retval = ioctl_try_fmt(arg,cam); |
| 1703 | break; |
| 1704 | case VIDIOC_G_FMT: |
| 1705 | retval = ioctl_get_fmt(arg,cam); |
| 1706 | break; |
| 1707 | case VIDIOC_S_FMT: |
| 1708 | retval = ioctl_set_fmt(arg,cam,file->private_data); |
| 1709 | break; |
| 1710 | |
| 1711 | case VIDIOC_CROPCAP: |
| 1712 | retval = ioctl_cropcap(arg,cam); |
| 1713 | break; |
| 1714 | case VIDIOC_G_CROP: |
| 1715 | case VIDIOC_S_CROP: |
| 1716 | // TODO: I think cropping can be implemented - SJB |
| 1717 | retval = -EINVAL; |
| 1718 | break; |
| 1719 | |
| 1720 | case VIDIOC_QUERYCTRL: |
| 1721 | retval = ioctl_queryctrl(arg,cam); |
| 1722 | break; |
| 1723 | case VIDIOC_QUERYMENU: |
| 1724 | retval = ioctl_querymenu(arg,cam); |
| 1725 | break; |
| 1726 | case VIDIOC_G_CTRL: |
| 1727 | retval = ioctl_g_ctrl(arg,cam); |
| 1728 | break; |
| 1729 | case VIDIOC_S_CTRL: |
| 1730 | retval = ioctl_s_ctrl(arg,cam); |
| 1731 | break; |
| 1732 | |
| 1733 | case VIDIOC_G_JPEGCOMP: |
| 1734 | retval = ioctl_g_jpegcomp(arg,cam); |
| 1735 | break; |
| 1736 | case VIDIOC_S_JPEGCOMP: |
| 1737 | retval = ioctl_s_jpegcomp(arg,cam); |
| 1738 | break; |
| 1739 | |
| 1740 | case VIDIOC_G_PRIORITY: |
| 1741 | { |
| 1742 | struct cpia2_fh *fh = file->private_data; |
| 1743 | *(enum v4l2_priority*)arg = fh->prio; |
| 1744 | break; |
| 1745 | } |
| 1746 | case VIDIOC_S_PRIORITY: |
| 1747 | { |
| 1748 | struct cpia2_fh *fh = file->private_data; |
| 1749 | enum v4l2_priority prio; |
| 1750 | prio = *(enum v4l2_priority*)arg; |
| 1751 | if(cam->streaming && |
| 1752 | prio != fh->prio && |
| 1753 | fh->prio == V4L2_PRIORITY_RECORD) { |
| 1754 | /* Can't drop record priority while streaming */ |
| 1755 | retval = -EBUSY; |
| 1756 | } else if(prio == V4L2_PRIORITY_RECORD && |
| 1757 | prio != fh->prio && |
| 1758 | v4l2_prio_max(&cam->prio) == V4L2_PRIORITY_RECORD) { |
| 1759 | /* Only one program can record at a time */ |
| 1760 | retval = -EBUSY; |
| 1761 | } else { |
| 1762 | retval = v4l2_prio_change(&cam->prio, &fh->prio, prio); |
| 1763 | } |
| 1764 | break; |
| 1765 | } |
| 1766 | |
| 1767 | case VIDIOC_REQBUFS: |
| 1768 | retval = ioctl_reqbufs(arg,cam); |
| 1769 | break; |
| 1770 | case VIDIOC_QUERYBUF: |
| 1771 | retval = ioctl_querybuf(arg,cam); |
| 1772 | break; |
| 1773 | case VIDIOC_QBUF: |
| 1774 | retval = ioctl_qbuf(arg,cam); |
| 1775 | break; |
| 1776 | case VIDIOC_DQBUF: |
| 1777 | retval = ioctl_dqbuf(arg,cam,file); |
| 1778 | break; |
| 1779 | case VIDIOC_STREAMON: |
| 1780 | { |
| 1781 | int type; |
| 1782 | DBG("VIDIOC_STREAMON, streaming=%d\n", cam->streaming); |
| 1783 | type = *(int*)arg; |
| 1784 | if(!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1785 | retval = -EINVAL; |
| 1786 | |
| 1787 | if(!cam->streaming) { |
| 1788 | retval = cpia2_usb_stream_start(cam, |
| 1789 | cam->params.camera_state.stream_mode); |
| 1790 | } else { |
| 1791 | retval = -EINVAL; |
| 1792 | } |
| 1793 | |
| 1794 | break; |
| 1795 | } |
| 1796 | case VIDIOC_STREAMOFF: |
| 1797 | { |
| 1798 | int type; |
| 1799 | DBG("VIDIOC_STREAMOFF, streaming=%d\n", cam->streaming); |
| 1800 | type = *(int*)arg; |
| 1801 | if(!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1802 | retval = -EINVAL; |
| 1803 | |
| 1804 | if(cam->streaming) { |
| 1805 | retval = cpia2_usb_stream_stop(cam); |
| 1806 | } else { |
| 1807 | retval = -EINVAL; |
| 1808 | } |
| 1809 | |
| 1810 | break; |
| 1811 | } |
| 1812 | |
| 1813 | case VIDIOC_ENUMOUTPUT: |
| 1814 | case VIDIOC_G_OUTPUT: |
| 1815 | case VIDIOC_S_OUTPUT: |
| 1816 | case VIDIOC_G_MODULATOR: |
| 1817 | case VIDIOC_S_MODULATOR: |
| 1818 | |
| 1819 | case VIDIOC_ENUMAUDIO: |
| 1820 | case VIDIOC_G_AUDIO: |
| 1821 | case VIDIOC_S_AUDIO: |
| 1822 | |
| 1823 | case VIDIOC_ENUMAUDOUT: |
| 1824 | case VIDIOC_G_AUDOUT: |
| 1825 | case VIDIOC_S_AUDOUT: |
| 1826 | |
| 1827 | case VIDIOC_ENUMSTD: |
| 1828 | case VIDIOC_QUERYSTD: |
| 1829 | case VIDIOC_G_STD: |
| 1830 | case VIDIOC_S_STD: |
| 1831 | |
| 1832 | case VIDIOC_G_TUNER: |
| 1833 | case VIDIOC_S_TUNER: |
| 1834 | case VIDIOC_G_FREQUENCY: |
| 1835 | case VIDIOC_S_FREQUENCY: |
| 1836 | |
| 1837 | case VIDIOC_OVERLAY: |
| 1838 | case VIDIOC_G_FBUF: |
| 1839 | case VIDIOC_S_FBUF: |
| 1840 | |
| 1841 | case VIDIOC_G_PARM: |
| 1842 | case VIDIOC_S_PARM: |
| 1843 | retval = -EINVAL; |
| 1844 | break; |
| 1845 | default: |
| 1846 | retval = -ENOIOCTLCMD; |
| 1847 | break; |
| 1848 | } |
| 1849 | |
| 1850 | up(&cam->busy_lock); |
| 1851 | return retval; |
| 1852 | } |
| 1853 | |
| 1854 | static int cpia2_ioctl(struct inode *inode, struct file *file, |
| 1855 | unsigned int ioctl_nr, unsigned long iarg) |
| 1856 | { |
| 1857 | return video_usercopy(inode, file, ioctl_nr, iarg, cpia2_do_ioctl); |
| 1858 | } |
| 1859 | |
| 1860 | /****************************************************************************** |
| 1861 | * |
| 1862 | * cpia2_mmap |
| 1863 | * |
| 1864 | *****************************************************************************/ |
| 1865 | static int cpia2_mmap(struct file *file, struct vm_area_struct *area) |
| 1866 | { |
| 1867 | int retval; |
| 1868 | struct video_device *dev = video_devdata(file); |
| 1869 | struct camera_data *cam = video_get_drvdata(dev); |
| 1870 | |
| 1871 | /* Priority check */ |
| 1872 | struct cpia2_fh *fh = file->private_data; |
| 1873 | if(fh->prio != V4L2_PRIORITY_RECORD) { |
| 1874 | return -EBUSY; |
| 1875 | } |
| 1876 | |
| 1877 | retval = cpia2_remap_buffer(cam, area); |
| 1878 | |
| 1879 | if(!retval) |
| 1880 | fh->mmapped = 1; |
| 1881 | return retval; |
| 1882 | } |
| 1883 | |
| 1884 | /****************************************************************************** |
| 1885 | * |
| 1886 | * reset_camera_struct_v4l |
| 1887 | * |
| 1888 | * Sets all values to the defaults |
| 1889 | *****************************************************************************/ |
| 1890 | static void reset_camera_struct_v4l(struct camera_data *cam) |
| 1891 | { |
| 1892 | /*** |
| 1893 | * Fill in the v4l structures. video_cap is filled in inside the VIDIOCCAP |
| 1894 | * Ioctl. Here, just do the window and picture stucts. |
| 1895 | ***/ |
| 1896 | cam->vp.palette = (u16) VIDEO_PALETTE_RGB24; /* Is this right? */ |
| 1897 | cam->vp.brightness = (u16) cam->params.color_params.brightness * 256; |
| 1898 | cam->vp.colour = (u16) cam->params.color_params.saturation * 256; |
| 1899 | cam->vp.contrast = (u16) cam->params.color_params.contrast * 256; |
| 1900 | |
| 1901 | cam->vw.x = 0; |
| 1902 | cam->vw.y = 0; |
| 1903 | cam->vw.width = cam->params.roi.width; |
| 1904 | cam->vw.height = cam->params.roi.height; |
| 1905 | cam->vw.flags = 0; |
| 1906 | cam->vw.clipcount = 0; |
| 1907 | |
| 1908 | cam->frame_size = buffer_size; |
| 1909 | cam->num_frames = num_buffers; |
| 1910 | |
| 1911 | /* FlickerModes */ |
| 1912 | cam->params.flicker_control.flicker_mode_req = flicker_mode; |
| 1913 | cam->params.flicker_control.mains_frequency = flicker_freq; |
| 1914 | |
| 1915 | /* streamMode */ |
| 1916 | cam->params.camera_state.stream_mode = alternate; |
| 1917 | |
| 1918 | cam->pixelformat = V4L2_PIX_FMT_JPEG; |
| 1919 | v4l2_prio_init(&cam->prio); |
| 1920 | return; |
| 1921 | } |
| 1922 | |
| 1923 | /*** |
| 1924 | * The v4l video device structure initialized for this device |
| 1925 | ***/ |
| 1926 | static struct file_operations fops_template = { |
| 1927 | .owner= THIS_MODULE, |
| 1928 | .open= cpia2_open, |
| 1929 | .release= cpia2_close, |
| 1930 | .read= cpia2_v4l_read, |
| 1931 | .poll= cpia2_v4l_poll, |
| 1932 | .ioctl= cpia2_ioctl, |
| 1933 | .llseek= no_llseek, |
| 1934 | .mmap= cpia2_mmap, |
| 1935 | }; |
| 1936 | |
| 1937 | static struct video_device cpia2_template = { |
| 1938 | /* I could not find any place for the old .initialize initializer?? */ |
| 1939 | .owner= THIS_MODULE, |
| 1940 | .name= "CPiA2 Camera", |
| 1941 | .type= VID_TYPE_CAPTURE, |
| 1942 | .type2 = V4L2_CAP_VIDEO_CAPTURE | |
| 1943 | V4L2_CAP_STREAMING, |
| 1944 | .hardware= VID_HARDWARE_CPIA2, |
| 1945 | .minor= -1, |
| 1946 | .fops= &fops_template, |
| 1947 | .release= video_device_release, |
| 1948 | }; |
| 1949 | |
| 1950 | /****************************************************************************** |
| 1951 | * |
| 1952 | * cpia2_register_camera |
| 1953 | * |
| 1954 | *****************************************************************************/ |
| 1955 | int cpia2_register_camera(struct camera_data *cam) |
| 1956 | { |
| 1957 | cam->vdev = video_device_alloc(); |
| 1958 | if(!cam->vdev) |
| 1959 | return -ENOMEM; |
| 1960 | |
| 1961 | memcpy(cam->vdev, &cpia2_template, sizeof(cpia2_template)); |
| 1962 | video_set_drvdata(cam->vdev, cam); |
| 1963 | |
| 1964 | reset_camera_struct_v4l(cam); |
| 1965 | |
| 1966 | /* register v4l device */ |
| 1967 | if (video_register_device |
| 1968 | (cam->vdev, VFL_TYPE_GRABBER, video_nr) == -1) { |
| 1969 | ERR("video_register_device failed\n"); |
| 1970 | video_device_release(cam->vdev); |
| 1971 | return -ENODEV; |
| 1972 | } |
| 1973 | |
| 1974 | return 0; |
| 1975 | } |
| 1976 | |
| 1977 | /****************************************************************************** |
| 1978 | * |
| 1979 | * cpia2_unregister_camera |
| 1980 | * |
| 1981 | *****************************************************************************/ |
| 1982 | void cpia2_unregister_camera(struct camera_data *cam) |
| 1983 | { |
| 1984 | if (!cam->open_count) { |
| 1985 | video_unregister_device(cam->vdev); |
| 1986 | } else { |
| 1987 | LOG("/dev/video%d removed while open, " |
| 1988 | "deferring video_unregister_device\n", |
| 1989 | cam->vdev->minor); |
| 1990 | } |
| 1991 | } |
| 1992 | |
| 1993 | /****************************************************************************** |
| 1994 | * |
| 1995 | * check_parameters |
| 1996 | * |
| 1997 | * Make sure that all user-supplied parameters are sensible |
| 1998 | *****************************************************************************/ |
| 1999 | static void __init check_parameters(void) |
| 2000 | { |
| 2001 | if(buffer_size < PAGE_SIZE) { |
| 2002 | buffer_size = PAGE_SIZE; |
| 2003 | LOG("buffer_size too small, setting to %d\n", buffer_size); |
| 2004 | } else if(buffer_size > 1024*1024) { |
| 2005 | /* arbitrary upper limiit */ |
| 2006 | buffer_size = 1024*1024; |
| 2007 | LOG("buffer_size ridiculously large, setting to %d\n", |
| 2008 | buffer_size); |
| 2009 | } else { |
| 2010 | buffer_size += PAGE_SIZE-1; |
| 2011 | buffer_size &= ~(PAGE_SIZE-1); |
| 2012 | } |
| 2013 | |
| 2014 | if(num_buffers < 1) { |
| 2015 | num_buffers = 1; |
| 2016 | LOG("num_buffers too small, setting to %d\n", num_buffers); |
| 2017 | } else if(num_buffers > VIDEO_MAX_FRAME) { |
| 2018 | num_buffers = VIDEO_MAX_FRAME; |
| 2019 | LOG("num_buffers too large, setting to %d\n", num_buffers); |
| 2020 | } |
| 2021 | |
| 2022 | if(alternate < USBIF_ISO_1 || alternate > USBIF_ISO_6) { |
| 2023 | alternate = DEFAULT_ALT; |
| 2024 | LOG("alternate specified is invalid, using %d\n", alternate); |
| 2025 | } |
| 2026 | |
| 2027 | if (flicker_mode != NEVER_FLICKER && flicker_mode != ANTI_FLICKER_ON) { |
| 2028 | flicker_mode = NEVER_FLICKER; |
| 2029 | LOG("Flicker mode specified is invalid, using %d\n", |
| 2030 | flicker_mode); |
| 2031 | } |
| 2032 | |
| 2033 | if (flicker_freq != FLICKER_50 && flicker_freq != FLICKER_60) { |
| 2034 | flicker_freq = FLICKER_60; |
| 2035 | LOG("Flicker mode specified is invalid, using %d\n", |
| 2036 | flicker_freq); |
| 2037 | } |
| 2038 | |
| 2039 | if(video_nr < -1 || video_nr > 64) { |
| 2040 | video_nr = -1; |
| 2041 | LOG("invalid video_nr specified, must be -1 to 64\n"); |
| 2042 | } |
| 2043 | |
| 2044 | DBG("Using %d buffers, each %d bytes, alternate=%d\n", |
| 2045 | num_buffers, buffer_size, alternate); |
| 2046 | } |
| 2047 | |
| 2048 | /************ Module Stuff ***************/ |
| 2049 | |
| 2050 | |
| 2051 | /****************************************************************************** |
| 2052 | * |
| 2053 | * cpia2_init/module_init |
| 2054 | * |
| 2055 | *****************************************************************************/ |
| 2056 | int __init cpia2_init(void) |
| 2057 | { |
| 2058 | LOG("%s v%d.%d.%d\n", |
| 2059 | ABOUT, CPIA2_MAJ_VER, CPIA2_MIN_VER, CPIA2_PATCH_VER); |
| 2060 | check_parameters(); |
| 2061 | cpia2_usb_init(); |
| 2062 | return 0; |
| 2063 | } |
| 2064 | |
| 2065 | |
| 2066 | /****************************************************************************** |
| 2067 | * |
| 2068 | * cpia2_exit/module_exit |
| 2069 | * |
| 2070 | *****************************************************************************/ |
| 2071 | void __exit cpia2_exit(void) |
| 2072 | { |
| 2073 | cpia2_usb_cleanup(); |
| 2074 | schedule_timeout(2 * HZ); |
| 2075 | } |
| 2076 | |
| 2077 | |
| 2078 | int __init cpia2_setup(char *str) |
| 2079 | { |
| 2080 | while(str) { |
| 2081 | if(!strncmp(str, "buffer_size:", 12)) { |
| 2082 | buffer_size = simple_strtoul(str + 13, &str, 10); |
| 2083 | } else if(!strncmp(str, "num_buffers:", 12)) { |
| 2084 | num_buffers = simple_strtoul(str + 13, &str, 10); |
| 2085 | } else if(!strncmp(str, "alternate:", 10)) { |
| 2086 | alternate = simple_strtoul(str + 11, &str, 10); |
| 2087 | } else if(!strncmp(str, "video_nr:", 9)) { |
| 2088 | video_nr = simple_strtoul(str + 10, &str, 10); |
| 2089 | } else if(!strncmp(str, "flicker_freq:",13)) { |
| 2090 | flicker_freq = simple_strtoul(str + 14, &str, 10); |
| 2091 | } else if(!strncmp(str, "flicker_mode:",13)) { |
| 2092 | flicker_mode = simple_strtoul(str + 14, &str, 10); |
| 2093 | } else { |
| 2094 | ++str; |
| 2095 | } |
| 2096 | } |
| 2097 | return 1; |
| 2098 | } |
| 2099 | |
| 2100 | __setup("cpia2=", cpia2_setup); |
| 2101 | |
| 2102 | module_init(cpia2_init); |
| 2103 | module_exit(cpia2_exit); |
| 2104 | |