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 | |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 34 | |
| 35 | #include <linux/module.h> |
| 36 | #include <linux/time.h> |
| 37 | #include <linux/sched.h> |
| 38 | #include <linux/slab.h> |
| 39 | #include <linux/init.h> |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 40 | |
| 41 | #include "cpia2.h" |
| 42 | #include "cpia2dev.h" |
| 43 | |
| 44 | |
| 45 | //#define _CPIA2_DEBUG_ |
| 46 | |
| 47 | #define MAKE_STRING_1(x) #x |
| 48 | #define MAKE_STRING(x) MAKE_STRING_1(x) |
| 49 | |
| 50 | static int video_nr = -1; |
| 51 | module_param(video_nr, int, 0); |
| 52 | MODULE_PARM_DESC(video_nr,"video device to register (0=/dev/video0, etc)"); |
| 53 | |
| 54 | static int buffer_size = 68*1024; |
| 55 | module_param(buffer_size, int, 0); |
| 56 | MODULE_PARM_DESC(buffer_size, "Size for each frame buffer in bytes (default 68k)"); |
| 57 | |
| 58 | static int num_buffers = 3; |
| 59 | module_param(num_buffers, int, 0); |
| 60 | MODULE_PARM_DESC(num_buffers, "Number of frame buffers (1-" |
| 61 | MAKE_STRING(VIDEO_MAX_FRAME) ", default 3)"); |
| 62 | |
| 63 | static int alternate = DEFAULT_ALT; |
| 64 | module_param(alternate, int, 0); |
| 65 | MODULE_PARM_DESC(alternate, "USB Alternate (" MAKE_STRING(USBIF_ISO_1) "-" |
| 66 | MAKE_STRING(USBIF_ISO_6) ", default " |
| 67 | MAKE_STRING(DEFAULT_ALT) ")"); |
| 68 | |
| 69 | static int flicker_freq = 60; |
| 70 | module_param(flicker_freq, int, 0); |
| 71 | MODULE_PARM_DESC(flicker_freq, "Flicker frequency (" MAKE_STRING(50) "or" |
| 72 | MAKE_STRING(60) ", default " |
| 73 | MAKE_STRING(60) ")"); |
| 74 | |
| 75 | static int flicker_mode = NEVER_FLICKER; |
| 76 | module_param(flicker_mode, int, 0); |
| 77 | MODULE_PARM_DESC(flicker_mode, |
| 78 | "Flicker supression (" MAKE_STRING(NEVER_FLICKER) "or" |
| 79 | MAKE_STRING(ANTI_FLICKER_ON) ", default " |
| 80 | MAKE_STRING(NEVER_FLICKER) ")"); |
| 81 | |
| 82 | MODULE_AUTHOR("Steve Miller (STMicroelectronics) <steve.miller@st.com>"); |
| 83 | MODULE_DESCRIPTION("V4L-driver for STMicroelectronics CPiA2 based cameras"); |
| 84 | MODULE_SUPPORTED_DEVICE("video"); |
| 85 | MODULE_LICENSE("GPL"); |
| 86 | |
| 87 | #define ABOUT "V4L-Driver for Vision CPiA2 based cameras" |
| 88 | |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 89 | struct control_menu_info { |
| 90 | int value; |
| 91 | char name[32]; |
| 92 | }; |
| 93 | |
| 94 | static struct control_menu_info framerate_controls[] = |
| 95 | { |
| 96 | { CPIA2_VP_FRAMERATE_6_25, "6.25 fps" }, |
| 97 | { CPIA2_VP_FRAMERATE_7_5, "7.5 fps" }, |
| 98 | { CPIA2_VP_FRAMERATE_12_5, "12.5 fps" }, |
| 99 | { CPIA2_VP_FRAMERATE_15, "15 fps" }, |
| 100 | { CPIA2_VP_FRAMERATE_25, "25 fps" }, |
| 101 | { CPIA2_VP_FRAMERATE_30, "30 fps" }, |
| 102 | }; |
Robert P. J. Day | 0c71bf1 | 2007-06-05 05:20:56 -0300 | [diff] [blame] | 103 | #define NUM_FRAMERATE_CONTROLS (ARRAY_SIZE(framerate_controls)) |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 104 | |
| 105 | static struct control_menu_info flicker_controls[] = |
| 106 | { |
| 107 | { NEVER_FLICKER, "Off" }, |
| 108 | { FLICKER_50, "50 Hz" }, |
| 109 | { FLICKER_60, "60 Hz" }, |
| 110 | }; |
Robert P. J. Day | 0c71bf1 | 2007-06-05 05:20:56 -0300 | [diff] [blame] | 111 | #define NUM_FLICKER_CONTROLS (ARRAY_SIZE(flicker_controls)) |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 112 | |
| 113 | static struct control_menu_info lights_controls[] = |
| 114 | { |
| 115 | { 0, "Off" }, |
| 116 | { 64, "Top" }, |
| 117 | { 128, "Bottom" }, |
| 118 | { 192, "Both" }, |
| 119 | }; |
Robert P. J. Day | 0c71bf1 | 2007-06-05 05:20:56 -0300 | [diff] [blame] | 120 | #define NUM_LIGHTS_CONTROLS (ARRAY_SIZE(lights_controls)) |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 121 | #define GPIO_LIGHTS_MASK 192 |
| 122 | |
| 123 | static struct v4l2_queryctrl controls[] = { |
| 124 | { |
| 125 | .id = V4L2_CID_BRIGHTNESS, |
| 126 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 127 | .name = "Brightness", |
| 128 | .minimum = 0, |
| 129 | .maximum = 255, |
| 130 | .step = 1, |
| 131 | .default_value = DEFAULT_BRIGHTNESS, |
| 132 | }, |
| 133 | { |
| 134 | .id = V4L2_CID_CONTRAST, |
| 135 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 136 | .name = "Contrast", |
| 137 | .minimum = 0, |
| 138 | .maximum = 255, |
| 139 | .step = 1, |
| 140 | .default_value = DEFAULT_CONTRAST, |
| 141 | }, |
| 142 | { |
| 143 | .id = V4L2_CID_SATURATION, |
| 144 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 145 | .name = "Saturation", |
| 146 | .minimum = 0, |
| 147 | .maximum = 255, |
| 148 | .step = 1, |
| 149 | .default_value = DEFAULT_SATURATION, |
| 150 | }, |
| 151 | { |
| 152 | .id = V4L2_CID_HFLIP, |
| 153 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 154 | .name = "Mirror Horizontally", |
| 155 | .minimum = 0, |
| 156 | .maximum = 1, |
| 157 | .step = 1, |
| 158 | .default_value = 0, |
| 159 | }, |
| 160 | { |
| 161 | .id = V4L2_CID_VFLIP, |
| 162 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 163 | .name = "Flip Vertically", |
| 164 | .minimum = 0, |
| 165 | .maximum = 1, |
| 166 | .step = 1, |
| 167 | .default_value = 0, |
| 168 | }, |
| 169 | { |
| 170 | .id = CPIA2_CID_TARGET_KB, |
| 171 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 172 | .name = "Target KB", |
| 173 | .minimum = 0, |
| 174 | .maximum = 255, |
| 175 | .step = 1, |
| 176 | .default_value = DEFAULT_TARGET_KB, |
| 177 | }, |
| 178 | { |
| 179 | .id = CPIA2_CID_GPIO, |
| 180 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 181 | .name = "GPIO", |
| 182 | .minimum = 0, |
| 183 | .maximum = 255, |
| 184 | .step = 1, |
| 185 | .default_value = 0, |
| 186 | }, |
| 187 | { |
| 188 | .id = CPIA2_CID_FLICKER_MODE, |
| 189 | .type = V4L2_CTRL_TYPE_MENU, |
| 190 | .name = "Flicker Reduction", |
| 191 | .minimum = 0, |
| 192 | .maximum = NUM_FLICKER_CONTROLS-1, |
| 193 | .step = 1, |
| 194 | .default_value = 0, |
| 195 | }, |
| 196 | { |
| 197 | .id = CPIA2_CID_FRAMERATE, |
| 198 | .type = V4L2_CTRL_TYPE_MENU, |
| 199 | .name = "Framerate", |
| 200 | .minimum = 0, |
| 201 | .maximum = NUM_FRAMERATE_CONTROLS-1, |
| 202 | .step = 1, |
| 203 | .default_value = NUM_FRAMERATE_CONTROLS-1, |
| 204 | }, |
| 205 | { |
| 206 | .id = CPIA2_CID_USB_ALT, |
| 207 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 208 | .name = "USB Alternate", |
| 209 | .minimum = USBIF_ISO_1, |
| 210 | .maximum = USBIF_ISO_6, |
| 211 | .step = 1, |
| 212 | .default_value = DEFAULT_ALT, |
| 213 | }, |
| 214 | { |
| 215 | .id = CPIA2_CID_LIGHTS, |
| 216 | .type = V4L2_CTRL_TYPE_MENU, |
| 217 | .name = "Lights", |
| 218 | .minimum = 0, |
| 219 | .maximum = NUM_LIGHTS_CONTROLS-1, |
| 220 | .step = 1, |
| 221 | .default_value = 0, |
| 222 | }, |
| 223 | { |
| 224 | .id = CPIA2_CID_RESET_CAMERA, |
| 225 | .type = V4L2_CTRL_TYPE_BUTTON, |
| 226 | .name = "Reset Camera", |
| 227 | .minimum = 0, |
| 228 | .maximum = 0, |
| 229 | .step = 0, |
| 230 | .default_value = 0, |
| 231 | }, |
| 232 | }; |
Robert P. J. Day | 0c71bf1 | 2007-06-05 05:20:56 -0300 | [diff] [blame] | 233 | #define NUM_CONTROLS (ARRAY_SIZE(controls)) |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 234 | |
| 235 | |
| 236 | /****************************************************************************** |
| 237 | * |
| 238 | * cpia2_open |
| 239 | * |
| 240 | *****************************************************************************/ |
| 241 | static int cpia2_open(struct inode *inode, struct file *file) |
| 242 | { |
| 243 | struct video_device *dev = video_devdata(file); |
| 244 | struct camera_data *cam = video_get_drvdata(dev); |
| 245 | int retval = 0; |
| 246 | |
| 247 | if (!cam) { |
| 248 | ERR("Internal error, camera_data not found!\n"); |
| 249 | return -ENODEV; |
| 250 | } |
| 251 | |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 252 | if(mutex_lock_interruptible(&cam->busy_lock)) |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 253 | return -ERESTARTSYS; |
| 254 | |
| 255 | if(!cam->present) { |
| 256 | retval = -ENODEV; |
| 257 | goto err_return; |
| 258 | } |
| 259 | |
| 260 | if (cam->open_count > 0) { |
| 261 | goto skip_init; |
| 262 | } |
| 263 | |
| 264 | if (cpia2_allocate_buffers(cam)) { |
| 265 | retval = -ENOMEM; |
| 266 | goto err_return; |
| 267 | } |
| 268 | |
| 269 | /* reset the camera */ |
| 270 | if (cpia2_reset_camera(cam) < 0) { |
| 271 | retval = -EIO; |
| 272 | goto err_return; |
| 273 | } |
| 274 | |
| 275 | cam->APP_len = 0; |
| 276 | cam->COM_len = 0; |
| 277 | |
| 278 | skip_init: |
| 279 | { |
| 280 | struct cpia2_fh *fh = kmalloc(sizeof(*fh),GFP_KERNEL); |
| 281 | if(!fh) { |
| 282 | retval = -ENOMEM; |
| 283 | goto err_return; |
| 284 | } |
| 285 | file->private_data = fh; |
| 286 | fh->prio = V4L2_PRIORITY_UNSET; |
| 287 | v4l2_prio_open(&cam->prio, &fh->prio); |
| 288 | fh->mmapped = 0; |
| 289 | } |
| 290 | |
| 291 | ++cam->open_count; |
| 292 | |
| 293 | cpia2_dbg_dump_registers(cam); |
| 294 | |
| 295 | err_return: |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 296 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 297 | return retval; |
| 298 | } |
| 299 | |
| 300 | /****************************************************************************** |
| 301 | * |
| 302 | * cpia2_close |
| 303 | * |
| 304 | *****************************************************************************/ |
| 305 | static int cpia2_close(struct inode *inode, struct file *file) |
| 306 | { |
| 307 | struct video_device *dev = video_devdata(file); |
| 308 | struct camera_data *cam = video_get_drvdata(dev); |
| 309 | struct cpia2_fh *fh = file->private_data; |
| 310 | |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 311 | mutex_lock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 312 | |
| 313 | if (cam->present && |
| 314 | (cam->open_count == 1 |
| 315 | || fh->prio == V4L2_PRIORITY_RECORD |
| 316 | )) { |
| 317 | cpia2_usb_stream_stop(cam); |
| 318 | |
| 319 | if(cam->open_count == 1) { |
| 320 | /* save camera state for later open */ |
| 321 | cpia2_save_camera_state(cam); |
| 322 | |
| 323 | cpia2_set_low_power(cam); |
| 324 | cpia2_free_buffers(cam); |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | { |
| 329 | if(fh->mmapped) |
| 330 | cam->mmapped = 0; |
| 331 | v4l2_prio_close(&cam->prio,&fh->prio); |
| 332 | file->private_data = NULL; |
| 333 | kfree(fh); |
| 334 | } |
| 335 | |
| 336 | if (--cam->open_count == 0) { |
| 337 | cpia2_free_buffers(cam); |
| 338 | if (!cam->present) { |
| 339 | video_unregister_device(dev); |
Jesper Juhl | bafefc0 | 2006-06-23 13:27:36 -0300 | [diff] [blame] | 340 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 341 | kfree(cam); |
Jesper Juhl | bafefc0 | 2006-06-23 13:27:36 -0300 | [diff] [blame] | 342 | return 0; |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 343 | } |
| 344 | } |
| 345 | |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 346 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 347 | |
| 348 | return 0; |
| 349 | } |
| 350 | |
| 351 | /****************************************************************************** |
| 352 | * |
| 353 | * cpia2_v4l_read |
| 354 | * |
| 355 | *****************************************************************************/ |
| 356 | static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count, |
| 357 | loff_t *off) |
| 358 | { |
| 359 | struct video_device *dev = video_devdata(file); |
| 360 | struct camera_data *cam = video_get_drvdata(dev); |
| 361 | int noblock = file->f_flags&O_NONBLOCK; |
| 362 | |
| 363 | struct cpia2_fh *fh = file->private_data; |
| 364 | |
| 365 | if(!cam) |
| 366 | return -EINVAL; |
| 367 | |
| 368 | /* Priority check */ |
| 369 | if(fh->prio != V4L2_PRIORITY_RECORD) { |
| 370 | return -EBUSY; |
| 371 | } |
| 372 | |
| 373 | return cpia2_read(cam, buf, count, noblock); |
| 374 | } |
| 375 | |
| 376 | |
| 377 | /****************************************************************************** |
| 378 | * |
| 379 | * cpia2_v4l_poll |
| 380 | * |
| 381 | *****************************************************************************/ |
| 382 | static unsigned int cpia2_v4l_poll(struct file *filp, struct poll_table_struct *wait) |
| 383 | { |
| 384 | struct video_device *dev = video_devdata(filp); |
| 385 | struct camera_data *cam = video_get_drvdata(dev); |
| 386 | |
| 387 | struct cpia2_fh *fh = filp->private_data; |
| 388 | |
| 389 | if(!cam) |
| 390 | return POLLERR; |
| 391 | |
| 392 | /* Priority check */ |
| 393 | if(fh->prio != V4L2_PRIORITY_RECORD) { |
| 394 | return POLLERR; |
| 395 | } |
| 396 | |
| 397 | return cpia2_poll(cam, filp, wait); |
| 398 | } |
| 399 | |
| 400 | |
| 401 | /****************************************************************************** |
| 402 | * |
| 403 | * ioctl_cap_query |
| 404 | * |
| 405 | *****************************************************************************/ |
| 406 | static int ioctl_cap_query(void *arg, struct camera_data *cam) |
| 407 | { |
| 408 | struct video_capability *vc; |
| 409 | int retval = 0; |
| 410 | vc = arg; |
| 411 | |
| 412 | if (cam->params.pnp_id.product == 0x151) |
| 413 | strcpy(vc->name, "QX5 Microscope"); |
| 414 | else |
| 415 | strcpy(vc->name, "CPiA2 Camera"); |
| 416 | |
| 417 | vc->type = VID_TYPE_CAPTURE | VID_TYPE_MJPEG_ENCODER; |
| 418 | vc->channels = 1; |
| 419 | vc->audios = 0; |
| 420 | vc->minwidth = 176; /* VIDEOSIZE_QCIF */ |
| 421 | vc->minheight = 144; |
| 422 | switch (cam->params.version.sensor_flags) { |
| 423 | case CPIA2_VP_SENSOR_FLAGS_500: |
| 424 | vc->maxwidth = STV_IMAGE_VGA_COLS; |
| 425 | vc->maxheight = STV_IMAGE_VGA_ROWS; |
| 426 | break; |
| 427 | case CPIA2_VP_SENSOR_FLAGS_410: |
| 428 | vc->maxwidth = STV_IMAGE_CIF_COLS; |
| 429 | vc->maxheight = STV_IMAGE_CIF_ROWS; |
| 430 | break; |
| 431 | default: |
| 432 | return -EINVAL; |
| 433 | } |
| 434 | |
| 435 | return retval; |
| 436 | } |
| 437 | |
| 438 | /****************************************************************************** |
| 439 | * |
| 440 | * ioctl_get_channel |
| 441 | * |
| 442 | *****************************************************************************/ |
| 443 | static int ioctl_get_channel(void *arg) |
| 444 | { |
| 445 | int retval = 0; |
| 446 | struct video_channel *v; |
| 447 | v = arg; |
| 448 | |
| 449 | if (v->channel != 0) |
| 450 | return -EINVAL; |
| 451 | |
| 452 | v->channel = 0; |
| 453 | strcpy(v->name, "Camera"); |
| 454 | v->tuners = 0; |
| 455 | v->flags = 0; |
| 456 | v->type = VIDEO_TYPE_CAMERA; |
| 457 | v->norm = 0; |
| 458 | |
| 459 | return retval; |
| 460 | } |
| 461 | |
| 462 | /****************************************************************************** |
| 463 | * |
| 464 | * ioctl_set_channel |
| 465 | * |
| 466 | *****************************************************************************/ |
| 467 | static int ioctl_set_channel(void *arg) |
| 468 | { |
| 469 | struct video_channel *v; |
| 470 | int retval = 0; |
| 471 | v = arg; |
| 472 | |
| 473 | if (retval == 0 && v->channel != 0) |
| 474 | retval = -EINVAL; |
| 475 | |
| 476 | return retval; |
| 477 | } |
| 478 | |
| 479 | /****************************************************************************** |
| 480 | * |
| 481 | * ioctl_set_image_prop |
| 482 | * |
| 483 | *****************************************************************************/ |
| 484 | static int ioctl_set_image_prop(void *arg, struct camera_data *cam) |
| 485 | { |
| 486 | struct video_picture *vp; |
| 487 | int retval = 0; |
| 488 | vp = arg; |
| 489 | |
| 490 | /* brightness, color, contrast need no check 0-65535 */ |
| 491 | memcpy(&cam->vp, vp, sizeof(*vp)); |
| 492 | |
| 493 | /* update cam->params.colorParams */ |
| 494 | cam->params.color_params.brightness = vp->brightness / 256; |
| 495 | cam->params.color_params.saturation = vp->colour / 256; |
| 496 | cam->params.color_params.contrast = vp->contrast / 256; |
| 497 | |
| 498 | DBG("Requested params: bright 0x%X, sat 0x%X, contrast 0x%X\n", |
| 499 | cam->params.color_params.brightness, |
| 500 | cam->params.color_params.saturation, |
| 501 | cam->params.color_params.contrast); |
| 502 | |
| 503 | cpia2_set_color_params(cam); |
| 504 | |
| 505 | return retval; |
| 506 | } |
| 507 | |
| 508 | static int sync(struct camera_data *cam, int frame_nr) |
| 509 | { |
| 510 | struct framebuf *frame = &cam->buffers[frame_nr]; |
| 511 | |
| 512 | while (1) { |
| 513 | if (frame->status == FRAME_READY) |
| 514 | return 0; |
| 515 | |
| 516 | if (!cam->streaming) { |
| 517 | frame->status = FRAME_READY; |
| 518 | frame->length = 0; |
| 519 | return 0; |
| 520 | } |
| 521 | |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 522 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 523 | wait_event_interruptible(cam->wq_stream, |
| 524 | !cam->streaming || |
| 525 | frame->status == FRAME_READY); |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 526 | mutex_lock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 527 | if (signal_pending(current)) |
| 528 | return -ERESTARTSYS; |
| 529 | if(!cam->present) |
| 530 | return -ENOTTY; |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | /****************************************************************************** |
| 535 | * |
| 536 | * ioctl_set_window_size |
| 537 | * |
| 538 | *****************************************************************************/ |
| 539 | static int ioctl_set_window_size(void *arg, struct camera_data *cam, |
| 540 | struct cpia2_fh *fh) |
| 541 | { |
| 542 | /* copy_from_user, check validity, copy to internal structure */ |
| 543 | struct video_window *vw; |
| 544 | int frame, err; |
| 545 | vw = arg; |
| 546 | |
| 547 | if (vw->clipcount != 0) /* clipping not supported */ |
| 548 | return -EINVAL; |
| 549 | |
| 550 | if (vw->clips != NULL) /* clipping not supported */ |
| 551 | return -EINVAL; |
| 552 | |
| 553 | /* Ensure that only this process can change the format. */ |
| 554 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); |
| 555 | if(err != 0) |
| 556 | return err; |
| 557 | |
| 558 | cam->pixelformat = V4L2_PIX_FMT_JPEG; |
| 559 | |
| 560 | /* Be sure to supply the Huffman tables, this isn't MJPEG */ |
| 561 | cam->params.compression.inhibit_htables = 0; |
| 562 | |
| 563 | /* we set the video window to something smaller or equal to what |
| 564 | * is requested by the user??? |
| 565 | */ |
| 566 | DBG("Requested width = %d, height = %d\n", vw->width, vw->height); |
| 567 | if (vw->width != cam->vw.width || vw->height != cam->vw.height) { |
| 568 | cam->vw.width = vw->width; |
| 569 | cam->vw.height = vw->height; |
| 570 | cam->params.roi.width = vw->width; |
| 571 | cam->params.roi.height = vw->height; |
| 572 | cpia2_set_format(cam); |
| 573 | } |
| 574 | |
| 575 | for (frame = 0; frame < cam->num_frames; ++frame) { |
| 576 | if (cam->buffers[frame].status == FRAME_READING) |
| 577 | if ((err = sync(cam, frame)) < 0) |
| 578 | return err; |
| 579 | |
| 580 | cam->buffers[frame].status = FRAME_EMPTY; |
| 581 | } |
| 582 | |
| 583 | return 0; |
| 584 | } |
| 585 | |
| 586 | /****************************************************************************** |
| 587 | * |
| 588 | * ioctl_get_mbuf |
| 589 | * |
| 590 | *****************************************************************************/ |
| 591 | static int ioctl_get_mbuf(void *arg, struct camera_data *cam) |
| 592 | { |
| 593 | struct video_mbuf *vm; |
| 594 | int i; |
| 595 | vm = arg; |
| 596 | |
| 597 | memset(vm, 0, sizeof(*vm)); |
| 598 | vm->size = cam->frame_size*cam->num_frames; |
| 599 | vm->frames = cam->num_frames; |
| 600 | for (i = 0; i < cam->num_frames; i++) |
| 601 | vm->offsets[i] = cam->frame_size * i; |
| 602 | |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | /****************************************************************************** |
| 607 | * |
| 608 | * ioctl_mcapture |
| 609 | * |
| 610 | *****************************************************************************/ |
| 611 | static int ioctl_mcapture(void *arg, struct camera_data *cam, |
| 612 | struct cpia2_fh *fh) |
| 613 | { |
| 614 | struct video_mmap *vm; |
| 615 | int video_size, err; |
| 616 | vm = arg; |
| 617 | |
| 618 | if (vm->frame < 0 || vm->frame >= cam->num_frames) |
| 619 | return -EINVAL; |
| 620 | |
| 621 | /* set video size */ |
| 622 | video_size = cpia2_match_video_size(vm->width, vm->height); |
| 623 | if (cam->video_size < 0) { |
| 624 | return -EINVAL; |
| 625 | } |
| 626 | |
| 627 | /* Ensure that only this process can change the format. */ |
| 628 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); |
| 629 | if(err != 0) |
| 630 | return err; |
| 631 | |
| 632 | if (video_size != cam->video_size) { |
| 633 | cam->video_size = video_size; |
| 634 | cam->params.roi.width = vm->width; |
| 635 | cam->params.roi.height = vm->height; |
| 636 | cpia2_set_format(cam); |
| 637 | } |
| 638 | |
| 639 | if (cam->buffers[vm->frame].status == FRAME_READING) |
| 640 | if ((err=sync(cam, vm->frame)) < 0) |
| 641 | return err; |
| 642 | |
| 643 | cam->buffers[vm->frame].status = FRAME_EMPTY; |
| 644 | |
| 645 | return cpia2_usb_stream_start(cam,cam->params.camera_state.stream_mode); |
| 646 | } |
| 647 | |
| 648 | /****************************************************************************** |
| 649 | * |
| 650 | * ioctl_sync |
| 651 | * |
| 652 | *****************************************************************************/ |
| 653 | static int ioctl_sync(void *arg, struct camera_data *cam) |
| 654 | { |
| 655 | int frame; |
| 656 | |
| 657 | frame = *(int*)arg; |
| 658 | |
| 659 | if (frame < 0 || frame >= cam->num_frames) |
| 660 | return -EINVAL; |
| 661 | |
| 662 | return sync(cam, frame); |
| 663 | } |
| 664 | |
| 665 | |
| 666 | /****************************************************************************** |
| 667 | * |
| 668 | * ioctl_set_gpio |
| 669 | * |
| 670 | *****************************************************************************/ |
| 671 | |
| 672 | static int ioctl_set_gpio(void *arg, struct camera_data *cam) |
| 673 | { |
| 674 | __u32 gpio_val; |
| 675 | |
| 676 | gpio_val = *(__u32*) arg; |
| 677 | |
| 678 | if (gpio_val &~ 0xFFU) |
| 679 | return -EINVAL; |
| 680 | |
| 681 | return cpia2_set_gpio(cam, (unsigned char)gpio_val); |
| 682 | } |
| 683 | |
| 684 | /****************************************************************************** |
| 685 | * |
| 686 | * ioctl_querycap |
| 687 | * |
| 688 | * V4L2 device capabilities |
| 689 | * |
| 690 | *****************************************************************************/ |
| 691 | |
| 692 | static int ioctl_querycap(void *arg, struct camera_data *cam) |
| 693 | { |
| 694 | struct v4l2_capability *vc = arg; |
| 695 | |
| 696 | memset(vc, 0, sizeof(*vc)); |
| 697 | strcpy(vc->driver, "cpia2"); |
| 698 | |
| 699 | if (cam->params.pnp_id.product == 0x151) |
| 700 | strcpy(vc->card, "QX5 Microscope"); |
| 701 | else |
| 702 | strcpy(vc->card, "CPiA2 Camera"); |
| 703 | switch (cam->params.pnp_id.device_type) { |
| 704 | case DEVICE_STV_672: |
| 705 | strcat(vc->card, " (672/"); |
| 706 | break; |
| 707 | case DEVICE_STV_676: |
| 708 | strcat(vc->card, " (676/"); |
| 709 | break; |
| 710 | default: |
| 711 | strcat(vc->card, " (???/"); |
| 712 | break; |
| 713 | } |
| 714 | switch (cam->params.version.sensor_flags) { |
| 715 | case CPIA2_VP_SENSOR_FLAGS_404: |
| 716 | strcat(vc->card, "404)"); |
| 717 | break; |
| 718 | case CPIA2_VP_SENSOR_FLAGS_407: |
| 719 | strcat(vc->card, "407)"); |
| 720 | break; |
| 721 | case CPIA2_VP_SENSOR_FLAGS_409: |
| 722 | strcat(vc->card, "409)"); |
| 723 | break; |
| 724 | case CPIA2_VP_SENSOR_FLAGS_410: |
| 725 | strcat(vc->card, "410)"); |
| 726 | break; |
| 727 | case CPIA2_VP_SENSOR_FLAGS_500: |
| 728 | strcat(vc->card, "500)"); |
| 729 | break; |
| 730 | default: |
| 731 | strcat(vc->card, "???)"); |
| 732 | break; |
| 733 | } |
| 734 | |
| 735 | if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) <0) |
| 736 | memset(vc->bus_info,0, sizeof(vc->bus_info)); |
| 737 | |
| 738 | vc->version = KERNEL_VERSION(CPIA2_MAJ_VER, CPIA2_MIN_VER, |
| 739 | CPIA2_PATCH_VER); |
| 740 | |
| 741 | vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 742 | V4L2_CAP_READWRITE | |
| 743 | V4L2_CAP_STREAMING; |
| 744 | |
| 745 | return 0; |
| 746 | } |
| 747 | |
| 748 | /****************************************************************************** |
| 749 | * |
| 750 | * ioctl_input |
| 751 | * |
| 752 | * V4L2 input get/set/enumerate |
| 753 | * |
| 754 | *****************************************************************************/ |
| 755 | |
| 756 | static int ioctl_input(unsigned int ioclt_nr,void *arg,struct camera_data *cam) |
| 757 | { |
| 758 | struct v4l2_input *i = arg; |
| 759 | |
| 760 | if(ioclt_nr != VIDIOC_G_INPUT) { |
| 761 | if (i->index != 0) |
| 762 | return -EINVAL; |
| 763 | } |
| 764 | |
| 765 | memset(i, 0, sizeof(*i)); |
| 766 | strcpy(i->name, "Camera"); |
| 767 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 768 | |
| 769 | return 0; |
| 770 | } |
| 771 | |
| 772 | /****************************************************************************** |
| 773 | * |
| 774 | * ioctl_enum_fmt |
| 775 | * |
| 776 | * V4L2 format enumerate |
| 777 | * |
| 778 | *****************************************************************************/ |
| 779 | |
| 780 | static int ioctl_enum_fmt(void *arg,struct camera_data *cam) |
| 781 | { |
| 782 | struct v4l2_fmtdesc *f = arg; |
| 783 | int index = f->index; |
| 784 | |
| 785 | if (index < 0 || index > 1) |
| 786 | return -EINVAL; |
| 787 | |
| 788 | memset(f, 0, sizeof(*f)); |
| 789 | f->index = index; |
| 790 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 791 | f->flags = V4L2_FMT_FLAG_COMPRESSED; |
| 792 | switch(index) { |
| 793 | case 0: |
| 794 | strcpy(f->description, "MJPEG"); |
| 795 | f->pixelformat = V4L2_PIX_FMT_MJPEG; |
| 796 | break; |
| 797 | case 1: |
| 798 | strcpy(f->description, "JPEG"); |
| 799 | f->pixelformat = V4L2_PIX_FMT_JPEG; |
| 800 | break; |
| 801 | default: |
| 802 | return -EINVAL; |
| 803 | } |
| 804 | |
| 805 | return 0; |
| 806 | } |
| 807 | |
| 808 | /****************************************************************************** |
| 809 | * |
| 810 | * ioctl_try_fmt |
| 811 | * |
| 812 | * V4L2 format try |
| 813 | * |
| 814 | *****************************************************************************/ |
| 815 | |
| 816 | static int ioctl_try_fmt(void *arg,struct camera_data *cam) |
| 817 | { |
| 818 | struct v4l2_format *f = arg; |
| 819 | |
| 820 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 821 | return -EINVAL; |
| 822 | |
| 823 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG && |
| 824 | f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) |
| 825 | return -EINVAL; |
| 826 | |
| 827 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 828 | f->fmt.pix.bytesperline = 0; |
| 829 | f->fmt.pix.sizeimage = cam->frame_size; |
| 830 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; |
| 831 | f->fmt.pix.priv = 0; |
| 832 | |
| 833 | switch (cpia2_match_video_size(f->fmt.pix.width, f->fmt.pix.height)) { |
| 834 | case VIDEOSIZE_VGA: |
| 835 | f->fmt.pix.width = 640; |
| 836 | f->fmt.pix.height = 480; |
| 837 | break; |
| 838 | case VIDEOSIZE_CIF: |
| 839 | f->fmt.pix.width = 352; |
| 840 | f->fmt.pix.height = 288; |
| 841 | break; |
| 842 | case VIDEOSIZE_QVGA: |
| 843 | f->fmt.pix.width = 320; |
| 844 | f->fmt.pix.height = 240; |
| 845 | break; |
| 846 | case VIDEOSIZE_288_216: |
| 847 | f->fmt.pix.width = 288; |
| 848 | f->fmt.pix.height = 216; |
| 849 | break; |
| 850 | case VIDEOSIZE_256_192: |
| 851 | f->fmt.pix.width = 256; |
| 852 | f->fmt.pix.height = 192; |
| 853 | break; |
| 854 | case VIDEOSIZE_224_168: |
| 855 | f->fmt.pix.width = 224; |
| 856 | f->fmt.pix.height = 168; |
| 857 | break; |
| 858 | case VIDEOSIZE_192_144: |
| 859 | f->fmt.pix.width = 192; |
| 860 | f->fmt.pix.height = 144; |
| 861 | break; |
| 862 | case VIDEOSIZE_QCIF: |
| 863 | default: |
| 864 | f->fmt.pix.width = 176; |
| 865 | f->fmt.pix.height = 144; |
| 866 | break; |
| 867 | } |
| 868 | |
| 869 | return 0; |
| 870 | } |
| 871 | |
| 872 | /****************************************************************************** |
| 873 | * |
| 874 | * ioctl_set_fmt |
| 875 | * |
| 876 | * V4L2 format set |
| 877 | * |
| 878 | *****************************************************************************/ |
| 879 | |
| 880 | static int ioctl_set_fmt(void *arg,struct camera_data *cam, struct cpia2_fh *fh) |
| 881 | { |
| 882 | struct v4l2_format *f = arg; |
| 883 | int err, frame; |
| 884 | |
| 885 | err = ioctl_try_fmt(arg, cam); |
| 886 | if(err != 0) |
| 887 | return err; |
| 888 | |
| 889 | /* Ensure that only this process can change the format. */ |
| 890 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); |
| 891 | if(err != 0) { |
| 892 | return err; |
| 893 | } |
| 894 | |
| 895 | cam->pixelformat = f->fmt.pix.pixelformat; |
| 896 | |
| 897 | /* NOTE: This should be set to 1 for MJPEG, but some apps don't handle |
| 898 | * the missing Huffman table properly. */ |
| 899 | cam->params.compression.inhibit_htables = 0; |
| 900 | /*f->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG;*/ |
| 901 | |
| 902 | /* we set the video window to something smaller or equal to what |
| 903 | * is requested by the user??? |
| 904 | */ |
| 905 | DBG("Requested width = %d, height = %d\n", |
| 906 | f->fmt.pix.width, f->fmt.pix.height); |
| 907 | if (f->fmt.pix.width != cam->vw.width || |
| 908 | f->fmt.pix.height != cam->vw.height) { |
| 909 | cam->vw.width = f->fmt.pix.width; |
| 910 | cam->vw.height = f->fmt.pix.height; |
| 911 | cam->params.roi.width = f->fmt.pix.width; |
| 912 | cam->params.roi.height = f->fmt.pix.height; |
| 913 | cpia2_set_format(cam); |
| 914 | } |
| 915 | |
| 916 | for (frame = 0; frame < cam->num_frames; ++frame) { |
| 917 | if (cam->buffers[frame].status == FRAME_READING) |
| 918 | if ((err = sync(cam, frame)) < 0) |
| 919 | return err; |
| 920 | |
| 921 | cam->buffers[frame].status = FRAME_EMPTY; |
| 922 | } |
| 923 | |
| 924 | return 0; |
| 925 | } |
| 926 | |
| 927 | /****************************************************************************** |
| 928 | * |
| 929 | * ioctl_get_fmt |
| 930 | * |
| 931 | * V4L2 format get |
| 932 | * |
| 933 | *****************************************************************************/ |
| 934 | |
| 935 | static int ioctl_get_fmt(void *arg,struct camera_data *cam) |
| 936 | { |
| 937 | struct v4l2_format *f = arg; |
| 938 | |
| 939 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 940 | return -EINVAL; |
| 941 | |
| 942 | f->fmt.pix.width = cam->vw.width; |
| 943 | f->fmt.pix.height = cam->vw.height; |
| 944 | f->fmt.pix.pixelformat = cam->pixelformat; |
| 945 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 946 | f->fmt.pix.bytesperline = 0; |
| 947 | f->fmt.pix.sizeimage = cam->frame_size; |
| 948 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; |
| 949 | f->fmt.pix.priv = 0; |
| 950 | |
| 951 | return 0; |
| 952 | } |
| 953 | |
| 954 | /****************************************************************************** |
| 955 | * |
| 956 | * ioctl_cropcap |
| 957 | * |
| 958 | * V4L2 query cropping capabilities |
| 959 | * NOTE: cropping is currently disabled |
| 960 | * |
| 961 | *****************************************************************************/ |
| 962 | |
| 963 | static int ioctl_cropcap(void *arg,struct camera_data *cam) |
| 964 | { |
| 965 | struct v4l2_cropcap *c = arg; |
| 966 | |
| 967 | if (c->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 968 | return -EINVAL; |
| 969 | |
| 970 | c->bounds.left = 0; |
| 971 | c->bounds.top = 0; |
| 972 | c->bounds.width = cam->vw.width; |
| 973 | c->bounds.height = cam->vw.height; |
| 974 | c->defrect.left = 0; |
| 975 | c->defrect.top = 0; |
| 976 | c->defrect.width = cam->vw.width; |
| 977 | c->defrect.height = cam->vw.height; |
| 978 | c->pixelaspect.numerator = 1; |
| 979 | c->pixelaspect.denominator = 1; |
| 980 | |
| 981 | return 0; |
| 982 | } |
| 983 | |
| 984 | /****************************************************************************** |
| 985 | * |
| 986 | * ioctl_queryctrl |
| 987 | * |
| 988 | * V4L2 query possible control variables |
| 989 | * |
| 990 | *****************************************************************************/ |
| 991 | |
| 992 | static int ioctl_queryctrl(void *arg,struct camera_data *cam) |
| 993 | { |
| 994 | struct v4l2_queryctrl *c = arg; |
| 995 | int i; |
| 996 | |
| 997 | for(i=0; i<NUM_CONTROLS; ++i) { |
| 998 | if(c->id == controls[i].id) { |
| 999 | memcpy(c, controls+i, sizeof(*c)); |
| 1000 | break; |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | if(i == NUM_CONTROLS) |
| 1005 | return -EINVAL; |
| 1006 | |
| 1007 | /* Some devices have additional limitations */ |
| 1008 | switch(c->id) { |
| 1009 | case V4L2_CID_BRIGHTNESS: |
| 1010 | /*** |
| 1011 | * Don't let the register be set to zero - bug in VP4 |
| 1012 | * flash of full brightness |
| 1013 | ***/ |
| 1014 | if (cam->params.pnp_id.device_type == DEVICE_STV_672) |
| 1015 | c->minimum = 1; |
| 1016 | break; |
| 1017 | case V4L2_CID_VFLIP: |
| 1018 | // VP5 Only |
| 1019 | if(cam->params.pnp_id.device_type == DEVICE_STV_672) |
| 1020 | c->flags |= V4L2_CTRL_FLAG_DISABLED; |
| 1021 | break; |
| 1022 | case CPIA2_CID_FRAMERATE: |
| 1023 | if(cam->params.pnp_id.device_type == DEVICE_STV_672 && |
| 1024 | cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ |
| 1025 | // Maximum 15fps |
| 1026 | int i; |
| 1027 | for(i=0; i<c->maximum; ++i) { |
| 1028 | if(framerate_controls[i].value == |
| 1029 | CPIA2_VP_FRAMERATE_15) { |
| 1030 | c->maximum = i; |
| 1031 | c->default_value = i; |
| 1032 | } |
| 1033 | } |
| 1034 | } |
| 1035 | break; |
| 1036 | case CPIA2_CID_FLICKER_MODE: |
| 1037 | // Flicker control only valid for 672. |
| 1038 | if(cam->params.pnp_id.device_type != DEVICE_STV_672) |
| 1039 | c->flags |= V4L2_CTRL_FLAG_DISABLED; |
| 1040 | break; |
| 1041 | case CPIA2_CID_LIGHTS: |
| 1042 | // Light control only valid for the QX5 Microscope. |
| 1043 | if(cam->params.pnp_id.product != 0x151) |
| 1044 | c->flags |= V4L2_CTRL_FLAG_DISABLED; |
| 1045 | break; |
| 1046 | default: |
| 1047 | break; |
| 1048 | } |
| 1049 | |
| 1050 | return 0; |
| 1051 | } |
| 1052 | |
| 1053 | /****************************************************************************** |
| 1054 | * |
| 1055 | * ioctl_querymenu |
| 1056 | * |
| 1057 | * V4L2 query possible control variables |
| 1058 | * |
| 1059 | *****************************************************************************/ |
| 1060 | |
| 1061 | static int ioctl_querymenu(void *arg,struct camera_data *cam) |
| 1062 | { |
| 1063 | struct v4l2_querymenu *m = arg; |
| 1064 | |
| 1065 | memset(m->name, 0, sizeof(m->name)); |
| 1066 | m->reserved = 0; |
| 1067 | |
| 1068 | switch(m->id) { |
| 1069 | case CPIA2_CID_FLICKER_MODE: |
| 1070 | if(m->index < 0 || m->index >= NUM_FLICKER_CONTROLS) |
| 1071 | return -EINVAL; |
| 1072 | |
| 1073 | strcpy(m->name, flicker_controls[m->index].name); |
| 1074 | break; |
| 1075 | case CPIA2_CID_FRAMERATE: |
| 1076 | { |
| 1077 | int maximum = NUM_FRAMERATE_CONTROLS - 1; |
| 1078 | if(cam->params.pnp_id.device_type == DEVICE_STV_672 && |
| 1079 | cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ |
| 1080 | // Maximum 15fps |
| 1081 | int i; |
| 1082 | for(i=0; i<maximum; ++i) { |
| 1083 | if(framerate_controls[i].value == |
| 1084 | CPIA2_VP_FRAMERATE_15) |
| 1085 | maximum = i; |
| 1086 | } |
| 1087 | } |
| 1088 | if(m->index < 0 || m->index > maximum) |
| 1089 | return -EINVAL; |
| 1090 | |
| 1091 | strcpy(m->name, framerate_controls[m->index].name); |
| 1092 | break; |
| 1093 | } |
| 1094 | case CPIA2_CID_LIGHTS: |
| 1095 | if(m->index < 0 || m->index >= NUM_LIGHTS_CONTROLS) |
| 1096 | return -EINVAL; |
| 1097 | |
| 1098 | strcpy(m->name, lights_controls[m->index].name); |
| 1099 | break; |
| 1100 | default: |
| 1101 | return -EINVAL; |
| 1102 | } |
| 1103 | |
| 1104 | return 0; |
| 1105 | } |
| 1106 | |
| 1107 | /****************************************************************************** |
| 1108 | * |
| 1109 | * ioctl_g_ctrl |
| 1110 | * |
| 1111 | * V4L2 get the value of a control variable |
| 1112 | * |
| 1113 | *****************************************************************************/ |
| 1114 | |
| 1115 | static int ioctl_g_ctrl(void *arg,struct camera_data *cam) |
| 1116 | { |
| 1117 | struct v4l2_control *c = arg; |
| 1118 | |
| 1119 | switch(c->id) { |
| 1120 | case V4L2_CID_BRIGHTNESS: |
| 1121 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_BRIGHTNESS, |
| 1122 | TRANSFER_READ, 0); |
| 1123 | c->value = cam->params.color_params.brightness; |
| 1124 | break; |
| 1125 | case V4L2_CID_CONTRAST: |
| 1126 | cpia2_do_command(cam, CPIA2_CMD_GET_CONTRAST, |
| 1127 | TRANSFER_READ, 0); |
| 1128 | c->value = cam->params.color_params.contrast; |
| 1129 | break; |
| 1130 | case V4L2_CID_SATURATION: |
| 1131 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_SATURATION, |
| 1132 | TRANSFER_READ, 0); |
| 1133 | c->value = cam->params.color_params.saturation; |
| 1134 | break; |
| 1135 | case V4L2_CID_HFLIP: |
| 1136 | cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, |
| 1137 | TRANSFER_READ, 0); |
| 1138 | c->value = (cam->params.vp_params.user_effects & |
| 1139 | CPIA2_VP_USER_EFFECTS_MIRROR) != 0; |
| 1140 | break; |
| 1141 | case V4L2_CID_VFLIP: |
| 1142 | cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, |
| 1143 | TRANSFER_READ, 0); |
| 1144 | c->value = (cam->params.vp_params.user_effects & |
| 1145 | CPIA2_VP_USER_EFFECTS_FLIP) != 0; |
| 1146 | break; |
| 1147 | case CPIA2_CID_TARGET_KB: |
| 1148 | c->value = cam->params.vc_params.target_kb; |
| 1149 | break; |
| 1150 | case CPIA2_CID_GPIO: |
| 1151 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, |
| 1152 | TRANSFER_READ, 0); |
| 1153 | c->value = cam->params.vp_params.gpio_data; |
| 1154 | break; |
| 1155 | case CPIA2_CID_FLICKER_MODE: |
| 1156 | { |
| 1157 | int i, mode; |
| 1158 | cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES, |
| 1159 | TRANSFER_READ, 0); |
| 1160 | if(cam->params.flicker_control.cam_register & |
| 1161 | CPIA2_VP_FLICKER_MODES_NEVER_FLICKER) { |
| 1162 | mode = NEVER_FLICKER; |
| 1163 | } else { |
| 1164 | if(cam->params.flicker_control.cam_register & |
| 1165 | CPIA2_VP_FLICKER_MODES_50HZ) { |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 1166 | mode = FLICKER_50; |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1167 | } else { |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 1168 | mode = FLICKER_60; |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1169 | } |
| 1170 | } |
| 1171 | for(i=0; i<NUM_FLICKER_CONTROLS; i++) { |
| 1172 | if(flicker_controls[i].value == mode) { |
| 1173 | c->value = i; |
| 1174 | break; |
| 1175 | } |
| 1176 | } |
| 1177 | if(i == NUM_FLICKER_CONTROLS) |
| 1178 | return -EINVAL; |
| 1179 | break; |
| 1180 | } |
| 1181 | case CPIA2_CID_FRAMERATE: |
| 1182 | { |
| 1183 | int maximum = NUM_FRAMERATE_CONTROLS - 1; |
| 1184 | int i; |
| 1185 | for(i=0; i<= maximum; i++) { |
| 1186 | if(cam->params.vp_params.frame_rate == |
| 1187 | framerate_controls[i].value) |
| 1188 | break; |
| 1189 | } |
| 1190 | if(i > maximum) |
| 1191 | return -EINVAL; |
| 1192 | c->value = i; |
| 1193 | break; |
| 1194 | } |
| 1195 | case CPIA2_CID_USB_ALT: |
| 1196 | c->value = cam->params.camera_state.stream_mode; |
| 1197 | break; |
| 1198 | case CPIA2_CID_LIGHTS: |
| 1199 | { |
| 1200 | int i; |
| 1201 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, |
| 1202 | TRANSFER_READ, 0); |
| 1203 | for(i=0; i<NUM_LIGHTS_CONTROLS; i++) { |
| 1204 | if((cam->params.vp_params.gpio_data&GPIO_LIGHTS_MASK) == |
| 1205 | lights_controls[i].value) { |
| 1206 | break; |
| 1207 | } |
| 1208 | } |
| 1209 | if(i == NUM_LIGHTS_CONTROLS) |
| 1210 | return -EINVAL; |
| 1211 | c->value = i; |
| 1212 | break; |
| 1213 | } |
| 1214 | case CPIA2_CID_RESET_CAMERA: |
| 1215 | return -EINVAL; |
| 1216 | default: |
| 1217 | return -EINVAL; |
| 1218 | } |
| 1219 | |
| 1220 | DBG("Get control id:%d, value:%d\n", c->id, c->value); |
| 1221 | |
| 1222 | return 0; |
| 1223 | } |
| 1224 | |
| 1225 | /****************************************************************************** |
| 1226 | * |
| 1227 | * ioctl_s_ctrl |
| 1228 | * |
| 1229 | * V4L2 set the value of a control variable |
| 1230 | * |
| 1231 | *****************************************************************************/ |
| 1232 | |
| 1233 | static int ioctl_s_ctrl(void *arg,struct camera_data *cam) |
| 1234 | { |
| 1235 | struct v4l2_control *c = arg; |
| 1236 | int i; |
| 1237 | int retval = 0; |
| 1238 | |
| 1239 | DBG("Set control id:%d, value:%d\n", c->id, c->value); |
| 1240 | |
| 1241 | /* Check that the value is in range */ |
| 1242 | for(i=0; i<NUM_CONTROLS; i++) { |
| 1243 | if(c->id == controls[i].id) { |
| 1244 | if(c->value < controls[i].minimum || |
| 1245 | c->value > controls[i].maximum) { |
| 1246 | return -EINVAL; |
| 1247 | } |
| 1248 | break; |
| 1249 | } |
| 1250 | } |
| 1251 | if(i == NUM_CONTROLS) |
| 1252 | return -EINVAL; |
| 1253 | |
| 1254 | switch(c->id) { |
| 1255 | case V4L2_CID_BRIGHTNESS: |
| 1256 | cpia2_set_brightness(cam, c->value); |
| 1257 | break; |
| 1258 | case V4L2_CID_CONTRAST: |
| 1259 | cpia2_set_contrast(cam, c->value); |
| 1260 | break; |
| 1261 | case V4L2_CID_SATURATION: |
| 1262 | cpia2_set_saturation(cam, c->value); |
| 1263 | break; |
| 1264 | case V4L2_CID_HFLIP: |
| 1265 | cpia2_set_property_mirror(cam, c->value); |
| 1266 | break; |
| 1267 | case V4L2_CID_VFLIP: |
| 1268 | cpia2_set_property_flip(cam, c->value); |
| 1269 | break; |
| 1270 | case CPIA2_CID_TARGET_KB: |
| 1271 | retval = cpia2_set_target_kb(cam, c->value); |
| 1272 | break; |
| 1273 | case CPIA2_CID_GPIO: |
| 1274 | retval = cpia2_set_gpio(cam, c->value); |
| 1275 | break; |
| 1276 | case CPIA2_CID_FLICKER_MODE: |
| 1277 | retval = cpia2_set_flicker_mode(cam, |
| 1278 | flicker_controls[c->value].value); |
| 1279 | break; |
| 1280 | case CPIA2_CID_FRAMERATE: |
| 1281 | retval = cpia2_set_fps(cam, framerate_controls[c->value].value); |
| 1282 | break; |
| 1283 | case CPIA2_CID_USB_ALT: |
| 1284 | retval = cpia2_usb_change_streaming_alternate(cam, c->value); |
| 1285 | break; |
| 1286 | case CPIA2_CID_LIGHTS: |
| 1287 | retval = cpia2_set_gpio(cam, lights_controls[c->value].value); |
| 1288 | break; |
| 1289 | case CPIA2_CID_RESET_CAMERA: |
| 1290 | cpia2_usb_stream_pause(cam); |
| 1291 | cpia2_reset_camera(cam); |
| 1292 | cpia2_usb_stream_resume(cam); |
| 1293 | break; |
| 1294 | default: |
| 1295 | retval = -EINVAL; |
| 1296 | } |
| 1297 | |
| 1298 | return retval; |
| 1299 | } |
| 1300 | |
| 1301 | /****************************************************************************** |
| 1302 | * |
| 1303 | * ioctl_g_jpegcomp |
| 1304 | * |
| 1305 | * V4L2 get the JPEG compression parameters |
| 1306 | * |
| 1307 | *****************************************************************************/ |
| 1308 | |
| 1309 | static int ioctl_g_jpegcomp(void *arg,struct camera_data *cam) |
| 1310 | { |
| 1311 | struct v4l2_jpegcompression *parms = arg; |
| 1312 | |
| 1313 | memset(parms, 0, sizeof(*parms)); |
| 1314 | |
| 1315 | parms->quality = 80; // TODO: Can this be made meaningful? |
| 1316 | |
| 1317 | parms->jpeg_markers = V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI; |
| 1318 | if(!cam->params.compression.inhibit_htables) { |
| 1319 | parms->jpeg_markers |= V4L2_JPEG_MARKER_DHT; |
| 1320 | } |
| 1321 | |
| 1322 | parms->APPn = cam->APPn; |
| 1323 | parms->APP_len = cam->APP_len; |
| 1324 | if(cam->APP_len > 0) { |
| 1325 | memcpy(parms->APP_data, cam->APP_data, cam->APP_len); |
| 1326 | parms->jpeg_markers |= V4L2_JPEG_MARKER_APP; |
| 1327 | } |
| 1328 | |
| 1329 | parms->COM_len = cam->COM_len; |
| 1330 | if(cam->COM_len > 0) { |
| 1331 | memcpy(parms->COM_data, cam->COM_data, cam->COM_len); |
| 1332 | parms->jpeg_markers |= JPEG_MARKER_COM; |
| 1333 | } |
| 1334 | |
| 1335 | DBG("G_JPEGCOMP APP_len:%d COM_len:%d\n", |
| 1336 | parms->APP_len, parms->COM_len); |
| 1337 | |
| 1338 | return 0; |
| 1339 | } |
| 1340 | |
| 1341 | /****************************************************************************** |
| 1342 | * |
| 1343 | * ioctl_s_jpegcomp |
| 1344 | * |
| 1345 | * V4L2 set the JPEG compression parameters |
| 1346 | * NOTE: quality and some jpeg_markers are ignored. |
| 1347 | * |
| 1348 | *****************************************************************************/ |
| 1349 | |
| 1350 | static int ioctl_s_jpegcomp(void *arg,struct camera_data *cam) |
| 1351 | { |
| 1352 | struct v4l2_jpegcompression *parms = arg; |
| 1353 | |
| 1354 | DBG("S_JPEGCOMP APP_len:%d COM_len:%d\n", |
| 1355 | parms->APP_len, parms->COM_len); |
| 1356 | |
| 1357 | cam->params.compression.inhibit_htables = |
| 1358 | !(parms->jpeg_markers & V4L2_JPEG_MARKER_DHT); |
| 1359 | |
| 1360 | if(parms->APP_len != 0) { |
| 1361 | if(parms->APP_len > 0 && |
| 1362 | parms->APP_len <= sizeof(cam->APP_data) && |
| 1363 | parms->APPn >= 0 && parms->APPn <= 15) { |
| 1364 | cam->APPn = parms->APPn; |
| 1365 | cam->APP_len = parms->APP_len; |
| 1366 | memcpy(cam->APP_data, parms->APP_data, parms->APP_len); |
| 1367 | } else { |
| 1368 | LOG("Bad APPn Params n=%d len=%d\n", |
| 1369 | parms->APPn, parms->APP_len); |
| 1370 | return -EINVAL; |
| 1371 | } |
| 1372 | } else { |
| 1373 | cam->APP_len = 0; |
| 1374 | } |
| 1375 | |
| 1376 | if(parms->COM_len != 0) { |
| 1377 | if(parms->COM_len > 0 && |
| 1378 | parms->COM_len <= sizeof(cam->COM_data)) { |
| 1379 | cam->COM_len = parms->COM_len; |
| 1380 | memcpy(cam->COM_data, parms->COM_data, parms->COM_len); |
| 1381 | } else { |
| 1382 | LOG("Bad COM_len=%d\n", parms->COM_len); |
| 1383 | return -EINVAL; |
| 1384 | } |
| 1385 | } |
| 1386 | |
| 1387 | return 0; |
| 1388 | } |
| 1389 | |
| 1390 | /****************************************************************************** |
| 1391 | * |
| 1392 | * ioctl_reqbufs |
| 1393 | * |
| 1394 | * V4L2 Initiate memory mapping. |
| 1395 | * NOTE: The user's request is ignored. For now the buffers are fixed. |
| 1396 | * |
| 1397 | *****************************************************************************/ |
| 1398 | |
| 1399 | static int ioctl_reqbufs(void *arg,struct camera_data *cam) |
| 1400 | { |
| 1401 | struct v4l2_requestbuffers *req = arg; |
| 1402 | |
| 1403 | if(req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1404 | req->memory != V4L2_MEMORY_MMAP) |
| 1405 | return -EINVAL; |
| 1406 | |
| 1407 | DBG("REQBUFS requested:%d returning:%d\n", req->count, cam->num_frames); |
| 1408 | req->count = cam->num_frames; |
| 1409 | memset(&req->reserved, 0, sizeof(req->reserved)); |
| 1410 | |
| 1411 | return 0; |
| 1412 | } |
| 1413 | |
| 1414 | /****************************************************************************** |
| 1415 | * |
| 1416 | * ioctl_querybuf |
| 1417 | * |
| 1418 | * V4L2 Query memory buffer status. |
| 1419 | * |
| 1420 | *****************************************************************************/ |
| 1421 | |
| 1422 | static int ioctl_querybuf(void *arg,struct camera_data *cam) |
| 1423 | { |
| 1424 | struct v4l2_buffer *buf = arg; |
| 1425 | |
| 1426 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1427 | buf->index > cam->num_frames) |
| 1428 | return -EINVAL; |
| 1429 | |
| 1430 | buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; |
| 1431 | buf->length = cam->frame_size; |
| 1432 | |
| 1433 | buf->memory = V4L2_MEMORY_MMAP; |
| 1434 | |
| 1435 | if(cam->mmapped) |
| 1436 | buf->flags = V4L2_BUF_FLAG_MAPPED; |
| 1437 | else |
| 1438 | buf->flags = 0; |
| 1439 | |
| 1440 | switch (cam->buffers[buf->index].status) { |
| 1441 | case FRAME_EMPTY: |
| 1442 | case FRAME_ERROR: |
| 1443 | case FRAME_READING: |
| 1444 | buf->bytesused = 0; |
| 1445 | buf->flags = V4L2_BUF_FLAG_QUEUED; |
| 1446 | break; |
| 1447 | case FRAME_READY: |
| 1448 | buf->bytesused = cam->buffers[buf->index].length; |
| 1449 | buf->timestamp = cam->buffers[buf->index].timestamp; |
| 1450 | buf->sequence = cam->buffers[buf->index].seq; |
| 1451 | buf->flags = V4L2_BUF_FLAG_DONE; |
| 1452 | break; |
| 1453 | } |
| 1454 | |
| 1455 | DBG("QUERYBUF index:%d offset:%d flags:%d seq:%d bytesused:%d\n", |
| 1456 | buf->index, buf->m.offset, buf->flags, buf->sequence, |
| 1457 | buf->bytesused); |
| 1458 | |
| 1459 | return 0; |
| 1460 | } |
| 1461 | |
| 1462 | /****************************************************************************** |
| 1463 | * |
| 1464 | * ioctl_qbuf |
| 1465 | * |
| 1466 | * V4L2 User is freeing buffer |
| 1467 | * |
| 1468 | *****************************************************************************/ |
| 1469 | |
| 1470 | static int ioctl_qbuf(void *arg,struct camera_data *cam) |
| 1471 | { |
| 1472 | struct v4l2_buffer *buf = arg; |
| 1473 | |
| 1474 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1475 | buf->memory != V4L2_MEMORY_MMAP || |
| 1476 | buf->index > cam->num_frames) |
| 1477 | return -EINVAL; |
| 1478 | |
| 1479 | DBG("QBUF #%d\n", buf->index); |
| 1480 | |
| 1481 | if(cam->buffers[buf->index].status == FRAME_READY) |
| 1482 | cam->buffers[buf->index].status = FRAME_EMPTY; |
| 1483 | |
| 1484 | return 0; |
| 1485 | } |
| 1486 | |
| 1487 | /****************************************************************************** |
| 1488 | * |
| 1489 | * find_earliest_filled_buffer |
| 1490 | * |
| 1491 | * Helper for ioctl_dqbuf. Find the next ready buffer. |
| 1492 | * |
| 1493 | *****************************************************************************/ |
| 1494 | |
| 1495 | static int find_earliest_filled_buffer(struct camera_data *cam) |
| 1496 | { |
| 1497 | int i; |
| 1498 | int found = -1; |
| 1499 | for (i=0; i<cam->num_frames; i++) { |
| 1500 | if(cam->buffers[i].status == FRAME_READY) { |
| 1501 | if(found < 0) { |
| 1502 | found = i; |
| 1503 | } else { |
| 1504 | /* find which buffer is earlier */ |
| 1505 | struct timeval *tv1, *tv2; |
| 1506 | tv1 = &cam->buffers[i].timestamp; |
| 1507 | tv2 = &cam->buffers[found].timestamp; |
| 1508 | if(tv1->tv_sec < tv2->tv_sec || |
| 1509 | (tv1->tv_sec == tv2->tv_sec && |
| 1510 | tv1->tv_usec < tv2->tv_usec)) |
| 1511 | found = i; |
| 1512 | } |
| 1513 | } |
| 1514 | } |
| 1515 | return found; |
| 1516 | } |
| 1517 | |
| 1518 | /****************************************************************************** |
| 1519 | * |
| 1520 | * ioctl_dqbuf |
| 1521 | * |
| 1522 | * V4L2 User is asking for a filled buffer. |
| 1523 | * |
| 1524 | *****************************************************************************/ |
| 1525 | |
| 1526 | static int ioctl_dqbuf(void *arg,struct camera_data *cam, struct file *file) |
| 1527 | { |
| 1528 | struct v4l2_buffer *buf = arg; |
| 1529 | int frame; |
| 1530 | |
| 1531 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1532 | buf->memory != V4L2_MEMORY_MMAP) |
| 1533 | return -EINVAL; |
| 1534 | |
| 1535 | frame = find_earliest_filled_buffer(cam); |
| 1536 | |
| 1537 | if(frame < 0 && file->f_flags&O_NONBLOCK) |
| 1538 | return -EAGAIN; |
| 1539 | |
| 1540 | if(frame < 0) { |
| 1541 | /* Wait for a frame to become available */ |
| 1542 | struct framebuf *cb=cam->curbuff; |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1543 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1544 | wait_event_interruptible(cam->wq_stream, |
| 1545 | !cam->present || |
| 1546 | (cb=cam->curbuff)->status == FRAME_READY); |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1547 | mutex_lock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1548 | if (signal_pending(current)) |
| 1549 | return -ERESTARTSYS; |
| 1550 | if(!cam->present) |
| 1551 | return -ENOTTY; |
| 1552 | frame = cb->num; |
| 1553 | } |
| 1554 | |
| 1555 | |
| 1556 | buf->index = frame; |
| 1557 | buf->bytesused = cam->buffers[buf->index].length; |
| 1558 | buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE; |
| 1559 | buf->field = V4L2_FIELD_NONE; |
| 1560 | buf->timestamp = cam->buffers[buf->index].timestamp; |
| 1561 | buf->sequence = cam->buffers[buf->index].seq; |
| 1562 | buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; |
| 1563 | buf->length = cam->frame_size; |
| 1564 | buf->input = 0; |
| 1565 | buf->reserved = 0; |
| 1566 | memset(&buf->timecode, 0, sizeof(buf->timecode)); |
| 1567 | |
| 1568 | DBG("DQBUF #%d status:%d seq:%d length:%d\n", buf->index, |
| 1569 | cam->buffers[buf->index].status, buf->sequence, buf->bytesused); |
| 1570 | |
| 1571 | return 0; |
| 1572 | } |
| 1573 | |
| 1574 | /****************************************************************************** |
| 1575 | * |
| 1576 | * cpia2_ioctl |
| 1577 | * |
| 1578 | *****************************************************************************/ |
| 1579 | static int cpia2_do_ioctl(struct inode *inode, struct file *file, |
| 1580 | unsigned int ioctl_nr, void *arg) |
| 1581 | { |
| 1582 | struct video_device *dev = video_devdata(file); |
| 1583 | struct camera_data *cam = video_get_drvdata(dev); |
| 1584 | int retval = 0; |
| 1585 | |
| 1586 | if (!cam) |
| 1587 | return -ENOTTY; |
| 1588 | |
| 1589 | /* make this _really_ smp-safe */ |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1590 | if (mutex_lock_interruptible(&cam->busy_lock)) |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1591 | return -ERESTARTSYS; |
| 1592 | |
| 1593 | if (!cam->present) { |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1594 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1595 | return -ENODEV; |
| 1596 | } |
| 1597 | |
| 1598 | /* Priority check */ |
| 1599 | switch (ioctl_nr) { |
| 1600 | case VIDIOCSWIN: |
| 1601 | case VIDIOCMCAPTURE: |
| 1602 | case VIDIOC_S_FMT: |
| 1603 | { |
| 1604 | struct cpia2_fh *fh = file->private_data; |
| 1605 | retval = v4l2_prio_check(&cam->prio, &fh->prio); |
| 1606 | if(retval) { |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1607 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1608 | return retval; |
| 1609 | } |
| 1610 | break; |
| 1611 | } |
| 1612 | case VIDIOCGMBUF: |
| 1613 | case VIDIOCSYNC: |
| 1614 | { |
| 1615 | struct cpia2_fh *fh = file->private_data; |
| 1616 | if(fh->prio != V4L2_PRIORITY_RECORD) { |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1617 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1618 | return -EBUSY; |
| 1619 | } |
| 1620 | break; |
| 1621 | } |
| 1622 | default: |
| 1623 | break; |
| 1624 | } |
| 1625 | |
| 1626 | switch (ioctl_nr) { |
Alexey Dobriyan | be787ac | 2006-03-07 22:20:23 -0300 | [diff] [blame] | 1627 | case VIDIOCGCAP: /* query capabilities */ |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1628 | retval = ioctl_cap_query(arg, cam); |
| 1629 | break; |
| 1630 | |
| 1631 | case VIDIOCGCHAN: /* get video source - we are a camera, nothing else */ |
| 1632 | retval = ioctl_get_channel(arg); |
| 1633 | break; |
| 1634 | case VIDIOCSCHAN: /* set video source - we are a camera, nothing else */ |
| 1635 | retval = ioctl_set_channel(arg); |
| 1636 | break; |
| 1637 | case VIDIOCGPICT: /* image properties */ |
| 1638 | memcpy(arg, &cam->vp, sizeof(struct video_picture)); |
| 1639 | break; |
| 1640 | case VIDIOCSPICT: |
| 1641 | retval = ioctl_set_image_prop(arg, cam); |
| 1642 | break; |
| 1643 | case VIDIOCGWIN: /* get/set capture window */ |
| 1644 | memcpy(arg, &cam->vw, sizeof(struct video_window)); |
| 1645 | break; |
| 1646 | case VIDIOCSWIN: |
| 1647 | retval = ioctl_set_window_size(arg, cam, file->private_data); |
| 1648 | break; |
| 1649 | case VIDIOCGMBUF: /* mmap interface */ |
| 1650 | retval = ioctl_get_mbuf(arg, cam); |
| 1651 | break; |
| 1652 | case VIDIOCMCAPTURE: |
| 1653 | retval = ioctl_mcapture(arg, cam, file->private_data); |
| 1654 | break; |
| 1655 | case VIDIOCSYNC: |
| 1656 | retval = ioctl_sync(arg, cam); |
| 1657 | break; |
| 1658 | /* pointless to implement overlay with this camera */ |
| 1659 | case VIDIOCCAPTURE: |
| 1660 | case VIDIOCGFBUF: |
| 1661 | case VIDIOCSFBUF: |
| 1662 | case VIDIOCKEY: |
| 1663 | retval = -EINVAL; |
| 1664 | break; |
| 1665 | |
| 1666 | /* tuner interface - we have none */ |
| 1667 | case VIDIOCGTUNER: |
| 1668 | case VIDIOCSTUNER: |
| 1669 | case VIDIOCGFREQ: |
| 1670 | case VIDIOCSFREQ: |
| 1671 | retval = -EINVAL; |
| 1672 | break; |
| 1673 | |
| 1674 | /* audio interface - we have none */ |
| 1675 | case VIDIOCGAUDIO: |
| 1676 | case VIDIOCSAUDIO: |
| 1677 | retval = -EINVAL; |
| 1678 | break; |
| 1679 | |
| 1680 | /* CPIA2 extension to Video4Linux API */ |
| 1681 | case CPIA2_IOC_SET_GPIO: |
| 1682 | retval = ioctl_set_gpio(arg, cam); |
| 1683 | break; |
| 1684 | case VIDIOC_QUERYCAP: |
| 1685 | retval = ioctl_querycap(arg,cam); |
| 1686 | break; |
| 1687 | |
| 1688 | case VIDIOC_ENUMINPUT: |
| 1689 | case VIDIOC_G_INPUT: |
| 1690 | case VIDIOC_S_INPUT: |
| 1691 | retval = ioctl_input(ioctl_nr, arg,cam); |
| 1692 | break; |
| 1693 | |
| 1694 | case VIDIOC_ENUM_FMT: |
| 1695 | retval = ioctl_enum_fmt(arg,cam); |
| 1696 | break; |
| 1697 | case VIDIOC_TRY_FMT: |
| 1698 | retval = ioctl_try_fmt(arg,cam); |
| 1699 | break; |
| 1700 | case VIDIOC_G_FMT: |
| 1701 | retval = ioctl_get_fmt(arg,cam); |
| 1702 | break; |
| 1703 | case VIDIOC_S_FMT: |
| 1704 | retval = ioctl_set_fmt(arg,cam,file->private_data); |
| 1705 | break; |
| 1706 | |
| 1707 | case VIDIOC_CROPCAP: |
| 1708 | retval = ioctl_cropcap(arg,cam); |
| 1709 | break; |
| 1710 | case VIDIOC_G_CROP: |
| 1711 | case VIDIOC_S_CROP: |
| 1712 | // TODO: I think cropping can be implemented - SJB |
| 1713 | retval = -EINVAL; |
| 1714 | break; |
| 1715 | |
| 1716 | case VIDIOC_QUERYCTRL: |
| 1717 | retval = ioctl_queryctrl(arg,cam); |
| 1718 | break; |
| 1719 | case VIDIOC_QUERYMENU: |
| 1720 | retval = ioctl_querymenu(arg,cam); |
| 1721 | break; |
| 1722 | case VIDIOC_G_CTRL: |
| 1723 | retval = ioctl_g_ctrl(arg,cam); |
| 1724 | break; |
| 1725 | case VIDIOC_S_CTRL: |
| 1726 | retval = ioctl_s_ctrl(arg,cam); |
| 1727 | break; |
| 1728 | |
| 1729 | case VIDIOC_G_JPEGCOMP: |
| 1730 | retval = ioctl_g_jpegcomp(arg,cam); |
| 1731 | break; |
| 1732 | case VIDIOC_S_JPEGCOMP: |
| 1733 | retval = ioctl_s_jpegcomp(arg,cam); |
| 1734 | break; |
| 1735 | |
| 1736 | case VIDIOC_G_PRIORITY: |
| 1737 | { |
| 1738 | struct cpia2_fh *fh = file->private_data; |
| 1739 | *(enum v4l2_priority*)arg = fh->prio; |
| 1740 | break; |
| 1741 | } |
| 1742 | case VIDIOC_S_PRIORITY: |
| 1743 | { |
| 1744 | struct cpia2_fh *fh = file->private_data; |
| 1745 | enum v4l2_priority prio; |
| 1746 | prio = *(enum v4l2_priority*)arg; |
| 1747 | if(cam->streaming && |
| 1748 | prio != fh->prio && |
| 1749 | fh->prio == V4L2_PRIORITY_RECORD) { |
| 1750 | /* Can't drop record priority while streaming */ |
| 1751 | retval = -EBUSY; |
| 1752 | } else if(prio == V4L2_PRIORITY_RECORD && |
| 1753 | prio != fh->prio && |
| 1754 | v4l2_prio_max(&cam->prio) == V4L2_PRIORITY_RECORD) { |
| 1755 | /* Only one program can record at a time */ |
| 1756 | retval = -EBUSY; |
| 1757 | } else { |
| 1758 | retval = v4l2_prio_change(&cam->prio, &fh->prio, prio); |
| 1759 | } |
| 1760 | break; |
| 1761 | } |
| 1762 | |
| 1763 | case VIDIOC_REQBUFS: |
| 1764 | retval = ioctl_reqbufs(arg,cam); |
| 1765 | break; |
| 1766 | case VIDIOC_QUERYBUF: |
| 1767 | retval = ioctl_querybuf(arg,cam); |
| 1768 | break; |
| 1769 | case VIDIOC_QBUF: |
| 1770 | retval = ioctl_qbuf(arg,cam); |
| 1771 | break; |
| 1772 | case VIDIOC_DQBUF: |
| 1773 | retval = ioctl_dqbuf(arg,cam,file); |
| 1774 | break; |
| 1775 | case VIDIOC_STREAMON: |
| 1776 | { |
| 1777 | int type; |
| 1778 | DBG("VIDIOC_STREAMON, streaming=%d\n", cam->streaming); |
| 1779 | type = *(int*)arg; |
| 1780 | if(!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1781 | retval = -EINVAL; |
| 1782 | |
| 1783 | if(!cam->streaming) { |
| 1784 | retval = cpia2_usb_stream_start(cam, |
| 1785 | cam->params.camera_state.stream_mode); |
| 1786 | } else { |
| 1787 | retval = -EINVAL; |
| 1788 | } |
| 1789 | |
| 1790 | break; |
| 1791 | } |
| 1792 | case VIDIOC_STREAMOFF: |
| 1793 | { |
| 1794 | int type; |
| 1795 | DBG("VIDIOC_STREAMOFF, streaming=%d\n", cam->streaming); |
| 1796 | type = *(int*)arg; |
| 1797 | if(!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1798 | retval = -EINVAL; |
| 1799 | |
| 1800 | if(cam->streaming) { |
| 1801 | retval = cpia2_usb_stream_stop(cam); |
| 1802 | } else { |
| 1803 | retval = -EINVAL; |
| 1804 | } |
| 1805 | |
| 1806 | break; |
| 1807 | } |
| 1808 | |
| 1809 | case VIDIOC_ENUMOUTPUT: |
| 1810 | case VIDIOC_G_OUTPUT: |
| 1811 | case VIDIOC_S_OUTPUT: |
| 1812 | case VIDIOC_G_MODULATOR: |
| 1813 | case VIDIOC_S_MODULATOR: |
| 1814 | |
| 1815 | case VIDIOC_ENUMAUDIO: |
| 1816 | case VIDIOC_G_AUDIO: |
| 1817 | case VIDIOC_S_AUDIO: |
| 1818 | |
| 1819 | case VIDIOC_ENUMAUDOUT: |
| 1820 | case VIDIOC_G_AUDOUT: |
| 1821 | case VIDIOC_S_AUDOUT: |
| 1822 | |
| 1823 | case VIDIOC_ENUMSTD: |
| 1824 | case VIDIOC_QUERYSTD: |
| 1825 | case VIDIOC_G_STD: |
| 1826 | case VIDIOC_S_STD: |
| 1827 | |
| 1828 | case VIDIOC_G_TUNER: |
| 1829 | case VIDIOC_S_TUNER: |
| 1830 | case VIDIOC_G_FREQUENCY: |
| 1831 | case VIDIOC_S_FREQUENCY: |
| 1832 | |
| 1833 | case VIDIOC_OVERLAY: |
| 1834 | case VIDIOC_G_FBUF: |
| 1835 | case VIDIOC_S_FBUF: |
| 1836 | |
| 1837 | case VIDIOC_G_PARM: |
| 1838 | case VIDIOC_S_PARM: |
| 1839 | retval = -EINVAL; |
| 1840 | break; |
| 1841 | default: |
| 1842 | retval = -ENOIOCTLCMD; |
| 1843 | break; |
| 1844 | } |
| 1845 | |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1846 | mutex_unlock(&cam->busy_lock); |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1847 | return retval; |
| 1848 | } |
| 1849 | |
| 1850 | static int cpia2_ioctl(struct inode *inode, struct file *file, |
| 1851 | unsigned int ioctl_nr, unsigned long iarg) |
| 1852 | { |
| 1853 | return video_usercopy(inode, file, ioctl_nr, iarg, cpia2_do_ioctl); |
| 1854 | } |
| 1855 | |
| 1856 | /****************************************************************************** |
| 1857 | * |
| 1858 | * cpia2_mmap |
| 1859 | * |
| 1860 | *****************************************************************************/ |
| 1861 | static int cpia2_mmap(struct file *file, struct vm_area_struct *area) |
| 1862 | { |
| 1863 | int retval; |
| 1864 | struct video_device *dev = video_devdata(file); |
| 1865 | struct camera_data *cam = video_get_drvdata(dev); |
| 1866 | |
| 1867 | /* Priority check */ |
| 1868 | struct cpia2_fh *fh = file->private_data; |
| 1869 | if(fh->prio != V4L2_PRIORITY_RECORD) { |
| 1870 | return -EBUSY; |
| 1871 | } |
| 1872 | |
| 1873 | retval = cpia2_remap_buffer(cam, area); |
| 1874 | |
| 1875 | if(!retval) |
| 1876 | fh->mmapped = 1; |
| 1877 | return retval; |
| 1878 | } |
| 1879 | |
| 1880 | /****************************************************************************** |
| 1881 | * |
| 1882 | * reset_camera_struct_v4l |
| 1883 | * |
| 1884 | * Sets all values to the defaults |
| 1885 | *****************************************************************************/ |
| 1886 | static void reset_camera_struct_v4l(struct camera_data *cam) |
| 1887 | { |
| 1888 | /*** |
| 1889 | * Fill in the v4l structures. video_cap is filled in inside the VIDIOCCAP |
| 1890 | * Ioctl. Here, just do the window and picture stucts. |
| 1891 | ***/ |
| 1892 | cam->vp.palette = (u16) VIDEO_PALETTE_RGB24; /* Is this right? */ |
| 1893 | cam->vp.brightness = (u16) cam->params.color_params.brightness * 256; |
| 1894 | cam->vp.colour = (u16) cam->params.color_params.saturation * 256; |
| 1895 | cam->vp.contrast = (u16) cam->params.color_params.contrast * 256; |
| 1896 | |
| 1897 | cam->vw.x = 0; |
| 1898 | cam->vw.y = 0; |
| 1899 | cam->vw.width = cam->params.roi.width; |
| 1900 | cam->vw.height = cam->params.roi.height; |
| 1901 | cam->vw.flags = 0; |
| 1902 | cam->vw.clipcount = 0; |
| 1903 | |
| 1904 | cam->frame_size = buffer_size; |
| 1905 | cam->num_frames = num_buffers; |
| 1906 | |
| 1907 | /* FlickerModes */ |
| 1908 | cam->params.flicker_control.flicker_mode_req = flicker_mode; |
| 1909 | cam->params.flicker_control.mains_frequency = flicker_freq; |
| 1910 | |
| 1911 | /* streamMode */ |
| 1912 | cam->params.camera_state.stream_mode = alternate; |
| 1913 | |
| 1914 | cam->pixelformat = V4L2_PIX_FMT_JPEG; |
| 1915 | v4l2_prio_init(&cam->prio); |
| 1916 | return; |
| 1917 | } |
| 1918 | |
| 1919 | /*** |
| 1920 | * The v4l video device structure initialized for this device |
| 1921 | ***/ |
Arjan van de Ven | fa027c2 | 2007-02-12 00:55:33 -0800 | [diff] [blame] | 1922 | static const struct file_operations fops_template = { |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1923 | .owner = THIS_MODULE, |
| 1924 | .open = cpia2_open, |
| 1925 | .release = cpia2_close, |
| 1926 | .read = cpia2_v4l_read, |
| 1927 | .poll = cpia2_v4l_poll, |
| 1928 | .ioctl = cpia2_ioctl, |
| 1929 | .llseek = no_llseek, |
Douglas Schilling Landgraf | 078ff79 | 2008-04-22 14:46:11 -0300 | [diff] [blame^] | 1930 | #ifdef CONFIG_COMPAT |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1931 | .compat_ioctl = v4l_compat_ioctl32, |
Douglas Schilling Landgraf | 078ff79 | 2008-04-22 14:46:11 -0300 | [diff] [blame^] | 1932 | #endif |
Alan Cox | 2ae1519 | 2006-03-20 13:59:42 -0300 | [diff] [blame] | 1933 | .mmap = cpia2_mmap, |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1934 | }; |
| 1935 | |
| 1936 | static struct video_device cpia2_template = { |
| 1937 | /* I could not find any place for the old .initialize initializer?? */ |
| 1938 | .owner= THIS_MODULE, |
| 1939 | .name= "CPiA2 Camera", |
| 1940 | .type= VID_TYPE_CAPTURE, |
| 1941 | .type2 = V4L2_CAP_VIDEO_CAPTURE | |
| 1942 | V4L2_CAP_STREAMING, |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 1943 | .minor= -1, |
| 1944 | .fops= &fops_template, |
| 1945 | .release= video_device_release, |
| 1946 | }; |
| 1947 | |
| 1948 | /****************************************************************************** |
| 1949 | * |
| 1950 | * cpia2_register_camera |
| 1951 | * |
| 1952 | *****************************************************************************/ |
| 1953 | int cpia2_register_camera(struct camera_data *cam) |
| 1954 | { |
| 1955 | cam->vdev = video_device_alloc(); |
| 1956 | if(!cam->vdev) |
| 1957 | return -ENOMEM; |
| 1958 | |
| 1959 | memcpy(cam->vdev, &cpia2_template, sizeof(cpia2_template)); |
| 1960 | video_set_drvdata(cam->vdev, cam); |
| 1961 | |
| 1962 | reset_camera_struct_v4l(cam); |
| 1963 | |
| 1964 | /* register v4l device */ |
| 1965 | if (video_register_device |
| 1966 | (cam->vdev, VFL_TYPE_GRABBER, video_nr) == -1) { |
| 1967 | ERR("video_register_device failed\n"); |
| 1968 | video_device_release(cam->vdev); |
| 1969 | return -ENODEV; |
| 1970 | } |
| 1971 | |
| 1972 | return 0; |
| 1973 | } |
| 1974 | |
| 1975 | /****************************************************************************** |
| 1976 | * |
| 1977 | * cpia2_unregister_camera |
| 1978 | * |
| 1979 | *****************************************************************************/ |
| 1980 | void cpia2_unregister_camera(struct camera_data *cam) |
| 1981 | { |
| 1982 | if (!cam->open_count) { |
| 1983 | video_unregister_device(cam->vdev); |
| 1984 | } else { |
| 1985 | LOG("/dev/video%d removed while open, " |
| 1986 | "deferring video_unregister_device\n", |
| 1987 | cam->vdev->minor); |
| 1988 | } |
| 1989 | } |
| 1990 | |
| 1991 | /****************************************************************************** |
| 1992 | * |
| 1993 | * check_parameters |
| 1994 | * |
| 1995 | * Make sure that all user-supplied parameters are sensible |
| 1996 | *****************************************************************************/ |
| 1997 | static void __init check_parameters(void) |
| 1998 | { |
| 1999 | if(buffer_size < PAGE_SIZE) { |
| 2000 | buffer_size = PAGE_SIZE; |
| 2001 | LOG("buffer_size too small, setting to %d\n", buffer_size); |
| 2002 | } else if(buffer_size > 1024*1024) { |
| 2003 | /* arbitrary upper limiit */ |
| 2004 | buffer_size = 1024*1024; |
| 2005 | LOG("buffer_size ridiculously large, setting to %d\n", |
| 2006 | buffer_size); |
| 2007 | } else { |
| 2008 | buffer_size += PAGE_SIZE-1; |
| 2009 | buffer_size &= ~(PAGE_SIZE-1); |
| 2010 | } |
| 2011 | |
| 2012 | if(num_buffers < 1) { |
| 2013 | num_buffers = 1; |
| 2014 | LOG("num_buffers too small, setting to %d\n", num_buffers); |
| 2015 | } else if(num_buffers > VIDEO_MAX_FRAME) { |
| 2016 | num_buffers = VIDEO_MAX_FRAME; |
| 2017 | LOG("num_buffers too large, setting to %d\n", num_buffers); |
| 2018 | } |
| 2019 | |
| 2020 | if(alternate < USBIF_ISO_1 || alternate > USBIF_ISO_6) { |
| 2021 | alternate = DEFAULT_ALT; |
| 2022 | LOG("alternate specified is invalid, using %d\n", alternate); |
| 2023 | } |
| 2024 | |
| 2025 | if (flicker_mode != NEVER_FLICKER && flicker_mode != ANTI_FLICKER_ON) { |
| 2026 | flicker_mode = NEVER_FLICKER; |
| 2027 | LOG("Flicker mode specified is invalid, using %d\n", |
| 2028 | flicker_mode); |
| 2029 | } |
| 2030 | |
| 2031 | if (flicker_freq != FLICKER_50 && flicker_freq != FLICKER_60) { |
| 2032 | flicker_freq = FLICKER_60; |
| 2033 | LOG("Flicker mode specified is invalid, using %d\n", |
| 2034 | flicker_freq); |
| 2035 | } |
| 2036 | |
| 2037 | if(video_nr < -1 || video_nr > 64) { |
| 2038 | video_nr = -1; |
| 2039 | LOG("invalid video_nr specified, must be -1 to 64\n"); |
| 2040 | } |
| 2041 | |
| 2042 | DBG("Using %d buffers, each %d bytes, alternate=%d\n", |
| 2043 | num_buffers, buffer_size, alternate); |
| 2044 | } |
| 2045 | |
| 2046 | /************ Module Stuff ***************/ |
| 2047 | |
| 2048 | |
| 2049 | /****************************************************************************** |
| 2050 | * |
| 2051 | * cpia2_init/module_init |
| 2052 | * |
| 2053 | *****************************************************************************/ |
Adrian Bunk | 8cbe84f | 2006-02-28 04:40:51 -0300 | [diff] [blame] | 2054 | static int __init cpia2_init(void) |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 2055 | { |
| 2056 | LOG("%s v%d.%d.%d\n", |
| 2057 | ABOUT, CPIA2_MAJ_VER, CPIA2_MIN_VER, CPIA2_PATCH_VER); |
| 2058 | check_parameters(); |
| 2059 | cpia2_usb_init(); |
| 2060 | return 0; |
| 2061 | } |
| 2062 | |
| 2063 | |
| 2064 | /****************************************************************************** |
| 2065 | * |
| 2066 | * cpia2_exit/module_exit |
| 2067 | * |
| 2068 | *****************************************************************************/ |
Adrian Bunk | 8cbe84f | 2006-02-28 04:40:51 -0300 | [diff] [blame] | 2069 | static void __exit cpia2_exit(void) |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 2070 | { |
| 2071 | cpia2_usb_cleanup(); |
| 2072 | schedule_timeout(2 * HZ); |
| 2073 | } |
| 2074 | |
Alan Cox | ab33d50 | 2006-02-27 00:09:05 -0300 | [diff] [blame] | 2075 | module_init(cpia2_init); |
| 2076 | module_exit(cpia2_exit); |
| 2077 | |