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ab33d507 AC |
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 | ||
ab33d507 AC |
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> | |
35ea11ff | 40 | #include <media/v4l2-ioctl.h> |
ab33d507 AC |
41 | |
42 | #include "cpia2.h" | |
43 | #include "cpia2dev.h" | |
44 | ||
45 | ||
46 | //#define _CPIA2_DEBUG_ | |
47 | ||
48 | #define MAKE_STRING_1(x) #x | |
49 | #define MAKE_STRING(x) MAKE_STRING_1(x) | |
50 | ||
51 | static int video_nr = -1; | |
52 | module_param(video_nr, int, 0); | |
53 | MODULE_PARM_DESC(video_nr,"video device to register (0=/dev/video0, etc)"); | |
54 | ||
55 | static int buffer_size = 68*1024; | |
56 | module_param(buffer_size, int, 0); | |
57 | MODULE_PARM_DESC(buffer_size, "Size for each frame buffer in bytes (default 68k)"); | |
58 | ||
59 | static int num_buffers = 3; | |
60 | module_param(num_buffers, int, 0); | |
61 | MODULE_PARM_DESC(num_buffers, "Number of frame buffers (1-" | |
62 | MAKE_STRING(VIDEO_MAX_FRAME) ", default 3)"); | |
63 | ||
64 | static int alternate = DEFAULT_ALT; | |
65 | module_param(alternate, int, 0); | |
66 | MODULE_PARM_DESC(alternate, "USB Alternate (" MAKE_STRING(USBIF_ISO_1) "-" | |
67 | MAKE_STRING(USBIF_ISO_6) ", default " | |
68 | MAKE_STRING(DEFAULT_ALT) ")"); | |
69 | ||
70 | static int flicker_freq = 60; | |
71 | module_param(flicker_freq, int, 0); | |
72 | MODULE_PARM_DESC(flicker_freq, "Flicker frequency (" MAKE_STRING(50) "or" | |
73 | MAKE_STRING(60) ", default " | |
74 | MAKE_STRING(60) ")"); | |
75 | ||
76 | static int flicker_mode = NEVER_FLICKER; | |
77 | module_param(flicker_mode, int, 0); | |
78 | MODULE_PARM_DESC(flicker_mode, | |
79 | "Flicker supression (" MAKE_STRING(NEVER_FLICKER) "or" | |
80 | MAKE_STRING(ANTI_FLICKER_ON) ", default " | |
81 | MAKE_STRING(NEVER_FLICKER) ")"); | |
82 | ||
83 | MODULE_AUTHOR("Steve Miller (STMicroelectronics) <steve.miller@st.com>"); | |
84 | MODULE_DESCRIPTION("V4L-driver for STMicroelectronics CPiA2 based cameras"); | |
85 | MODULE_SUPPORTED_DEVICE("video"); | |
86 | MODULE_LICENSE("GPL"); | |
87 | ||
88 | #define ABOUT "V4L-Driver for Vision CPiA2 based cameras" | |
89 | ||
ab33d507 AC |
90 | struct control_menu_info { |
91 | int value; | |
92 | char name[32]; | |
93 | }; | |
94 | ||
95 | static struct control_menu_info framerate_controls[] = | |
96 | { | |
97 | { CPIA2_VP_FRAMERATE_6_25, "6.25 fps" }, | |
98 | { CPIA2_VP_FRAMERATE_7_5, "7.5 fps" }, | |
99 | { CPIA2_VP_FRAMERATE_12_5, "12.5 fps" }, | |
100 | { CPIA2_VP_FRAMERATE_15, "15 fps" }, | |
101 | { CPIA2_VP_FRAMERATE_25, "25 fps" }, | |
102 | { CPIA2_VP_FRAMERATE_30, "30 fps" }, | |
103 | }; | |
0c71bf1c | 104 | #define NUM_FRAMERATE_CONTROLS (ARRAY_SIZE(framerate_controls)) |
ab33d507 AC |
105 | |
106 | static struct control_menu_info flicker_controls[] = | |
107 | { | |
108 | { NEVER_FLICKER, "Off" }, | |
109 | { FLICKER_50, "50 Hz" }, | |
110 | { FLICKER_60, "60 Hz" }, | |
111 | }; | |
0c71bf1c | 112 | #define NUM_FLICKER_CONTROLS (ARRAY_SIZE(flicker_controls)) |
ab33d507 AC |
113 | |
114 | static struct control_menu_info lights_controls[] = | |
115 | { | |
116 | { 0, "Off" }, | |
117 | { 64, "Top" }, | |
118 | { 128, "Bottom" }, | |
119 | { 192, "Both" }, | |
120 | }; | |
0c71bf1c | 121 | #define NUM_LIGHTS_CONTROLS (ARRAY_SIZE(lights_controls)) |
ab33d507 AC |
122 | #define GPIO_LIGHTS_MASK 192 |
123 | ||
124 | static struct v4l2_queryctrl controls[] = { | |
125 | { | |
126 | .id = V4L2_CID_BRIGHTNESS, | |
127 | .type = V4L2_CTRL_TYPE_INTEGER, | |
128 | .name = "Brightness", | |
129 | .minimum = 0, | |
130 | .maximum = 255, | |
131 | .step = 1, | |
132 | .default_value = DEFAULT_BRIGHTNESS, | |
133 | }, | |
134 | { | |
135 | .id = V4L2_CID_CONTRAST, | |
136 | .type = V4L2_CTRL_TYPE_INTEGER, | |
137 | .name = "Contrast", | |
138 | .minimum = 0, | |
139 | .maximum = 255, | |
140 | .step = 1, | |
141 | .default_value = DEFAULT_CONTRAST, | |
142 | }, | |
143 | { | |
144 | .id = V4L2_CID_SATURATION, | |
145 | .type = V4L2_CTRL_TYPE_INTEGER, | |
146 | .name = "Saturation", | |
147 | .minimum = 0, | |
148 | .maximum = 255, | |
149 | .step = 1, | |
150 | .default_value = DEFAULT_SATURATION, | |
151 | }, | |
152 | { | |
153 | .id = V4L2_CID_HFLIP, | |
154 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
155 | .name = "Mirror Horizontally", | |
156 | .minimum = 0, | |
157 | .maximum = 1, | |
158 | .step = 1, | |
159 | .default_value = 0, | |
160 | }, | |
161 | { | |
162 | .id = V4L2_CID_VFLIP, | |
163 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
164 | .name = "Flip Vertically", | |
165 | .minimum = 0, | |
166 | .maximum = 1, | |
167 | .step = 1, | |
168 | .default_value = 0, | |
169 | }, | |
170 | { | |
171 | .id = CPIA2_CID_TARGET_KB, | |
172 | .type = V4L2_CTRL_TYPE_INTEGER, | |
173 | .name = "Target KB", | |
174 | .minimum = 0, | |
175 | .maximum = 255, | |
176 | .step = 1, | |
177 | .default_value = DEFAULT_TARGET_KB, | |
178 | }, | |
179 | { | |
180 | .id = CPIA2_CID_GPIO, | |
181 | .type = V4L2_CTRL_TYPE_INTEGER, | |
182 | .name = "GPIO", | |
183 | .minimum = 0, | |
184 | .maximum = 255, | |
185 | .step = 1, | |
186 | .default_value = 0, | |
187 | }, | |
188 | { | |
189 | .id = CPIA2_CID_FLICKER_MODE, | |
190 | .type = V4L2_CTRL_TYPE_MENU, | |
191 | .name = "Flicker Reduction", | |
192 | .minimum = 0, | |
193 | .maximum = NUM_FLICKER_CONTROLS-1, | |
194 | .step = 1, | |
195 | .default_value = 0, | |
196 | }, | |
197 | { | |
198 | .id = CPIA2_CID_FRAMERATE, | |
199 | .type = V4L2_CTRL_TYPE_MENU, | |
200 | .name = "Framerate", | |
201 | .minimum = 0, | |
202 | .maximum = NUM_FRAMERATE_CONTROLS-1, | |
203 | .step = 1, | |
204 | .default_value = NUM_FRAMERATE_CONTROLS-1, | |
205 | }, | |
206 | { | |
207 | .id = CPIA2_CID_USB_ALT, | |
208 | .type = V4L2_CTRL_TYPE_INTEGER, | |
209 | .name = "USB Alternate", | |
210 | .minimum = USBIF_ISO_1, | |
211 | .maximum = USBIF_ISO_6, | |
212 | .step = 1, | |
213 | .default_value = DEFAULT_ALT, | |
214 | }, | |
215 | { | |
216 | .id = CPIA2_CID_LIGHTS, | |
217 | .type = V4L2_CTRL_TYPE_MENU, | |
218 | .name = "Lights", | |
219 | .minimum = 0, | |
220 | .maximum = NUM_LIGHTS_CONTROLS-1, | |
221 | .step = 1, | |
222 | .default_value = 0, | |
223 | }, | |
224 | { | |
225 | .id = CPIA2_CID_RESET_CAMERA, | |
226 | .type = V4L2_CTRL_TYPE_BUTTON, | |
227 | .name = "Reset Camera", | |
228 | .minimum = 0, | |
229 | .maximum = 0, | |
230 | .step = 0, | |
231 | .default_value = 0, | |
232 | }, | |
233 | }; | |
0c71bf1c | 234 | #define NUM_CONTROLS (ARRAY_SIZE(controls)) |
ab33d507 AC |
235 | |
236 | ||
237 | /****************************************************************************** | |
238 | * | |
239 | * cpia2_open | |
240 | * | |
241 | *****************************************************************************/ | |
242 | static int cpia2_open(struct inode *inode, struct file *file) | |
243 | { | |
c170ecf4 | 244 | struct camera_data *cam = video_drvdata(file); |
ab33d507 AC |
245 | int retval = 0; |
246 | ||
247 | if (!cam) { | |
248 | ERR("Internal error, camera_data not found!\n"); | |
249 | return -ENODEV; | |
250 | } | |
251 | ||
2ae15191 | 252 | if(mutex_lock_interruptible(&cam->busy_lock)) |
ab33d507 AC |
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: | |
2ae15191 | 296 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
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 | ||
2ae15191 | 311 | mutex_lock(&cam->busy_lock); |
ab33d507 AC |
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); | |
bafefc0c | 340 | mutex_unlock(&cam->busy_lock); |
ab33d507 | 341 | kfree(cam); |
bafefc0c | 342 | return 0; |
ab33d507 AC |
343 | } |
344 | } | |
345 | ||
2ae15191 | 346 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
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 | { | |
c170ecf4 | 359 | struct camera_data *cam = video_drvdata(file); |
ab33d507 AC |
360 | int noblock = file->f_flags&O_NONBLOCK; |
361 | ||
362 | struct cpia2_fh *fh = file->private_data; | |
363 | ||
364 | if(!cam) | |
365 | return -EINVAL; | |
366 | ||
367 | /* Priority check */ | |
368 | if(fh->prio != V4L2_PRIORITY_RECORD) { | |
369 | return -EBUSY; | |
370 | } | |
371 | ||
372 | return cpia2_read(cam, buf, count, noblock); | |
373 | } | |
374 | ||
375 | ||
376 | /****************************************************************************** | |
377 | * | |
378 | * cpia2_v4l_poll | |
379 | * | |
380 | *****************************************************************************/ | |
381 | static unsigned int cpia2_v4l_poll(struct file *filp, struct poll_table_struct *wait) | |
382 | { | |
c170ecf4 | 383 | struct camera_data *cam = video_drvdata(filp); |
ab33d507 AC |
384 | struct cpia2_fh *fh = filp->private_data; |
385 | ||
386 | if(!cam) | |
387 | return POLLERR; | |
388 | ||
389 | /* Priority check */ | |
390 | if(fh->prio != V4L2_PRIORITY_RECORD) { | |
391 | return POLLERR; | |
392 | } | |
393 | ||
394 | return cpia2_poll(cam, filp, wait); | |
395 | } | |
396 | ||
397 | ||
398 | /****************************************************************************** | |
399 | * | |
400 | * ioctl_cap_query | |
401 | * | |
402 | *****************************************************************************/ | |
403 | static int ioctl_cap_query(void *arg, struct camera_data *cam) | |
404 | { | |
405 | struct video_capability *vc; | |
406 | int retval = 0; | |
407 | vc = arg; | |
408 | ||
409 | if (cam->params.pnp_id.product == 0x151) | |
410 | strcpy(vc->name, "QX5 Microscope"); | |
411 | else | |
412 | strcpy(vc->name, "CPiA2 Camera"); | |
413 | ||
414 | vc->type = VID_TYPE_CAPTURE | VID_TYPE_MJPEG_ENCODER; | |
415 | vc->channels = 1; | |
416 | vc->audios = 0; | |
417 | vc->minwidth = 176; /* VIDEOSIZE_QCIF */ | |
418 | vc->minheight = 144; | |
419 | switch (cam->params.version.sensor_flags) { | |
420 | case CPIA2_VP_SENSOR_FLAGS_500: | |
421 | vc->maxwidth = STV_IMAGE_VGA_COLS; | |
422 | vc->maxheight = STV_IMAGE_VGA_ROWS; | |
423 | break; | |
424 | case CPIA2_VP_SENSOR_FLAGS_410: | |
425 | vc->maxwidth = STV_IMAGE_CIF_COLS; | |
426 | vc->maxheight = STV_IMAGE_CIF_ROWS; | |
427 | break; | |
428 | default: | |
429 | return -EINVAL; | |
430 | } | |
431 | ||
432 | return retval; | |
433 | } | |
434 | ||
435 | /****************************************************************************** | |
436 | * | |
437 | * ioctl_get_channel | |
438 | * | |
439 | *****************************************************************************/ | |
440 | static int ioctl_get_channel(void *arg) | |
441 | { | |
442 | int retval = 0; | |
443 | struct video_channel *v; | |
444 | v = arg; | |
445 | ||
446 | if (v->channel != 0) | |
447 | return -EINVAL; | |
448 | ||
449 | v->channel = 0; | |
450 | strcpy(v->name, "Camera"); | |
451 | v->tuners = 0; | |
452 | v->flags = 0; | |
453 | v->type = VIDEO_TYPE_CAMERA; | |
454 | v->norm = 0; | |
455 | ||
456 | return retval; | |
457 | } | |
458 | ||
459 | /****************************************************************************** | |
460 | * | |
461 | * ioctl_set_channel | |
462 | * | |
463 | *****************************************************************************/ | |
464 | static int ioctl_set_channel(void *arg) | |
465 | { | |
466 | struct video_channel *v; | |
467 | int retval = 0; | |
468 | v = arg; | |
469 | ||
470 | if (retval == 0 && v->channel != 0) | |
471 | retval = -EINVAL; | |
472 | ||
473 | return retval; | |
474 | } | |
475 | ||
476 | /****************************************************************************** | |
477 | * | |
478 | * ioctl_set_image_prop | |
479 | * | |
480 | *****************************************************************************/ | |
481 | static int ioctl_set_image_prop(void *arg, struct camera_data *cam) | |
482 | { | |
483 | struct video_picture *vp; | |
484 | int retval = 0; | |
485 | vp = arg; | |
486 | ||
487 | /* brightness, color, contrast need no check 0-65535 */ | |
488 | memcpy(&cam->vp, vp, sizeof(*vp)); | |
489 | ||
490 | /* update cam->params.colorParams */ | |
491 | cam->params.color_params.brightness = vp->brightness / 256; | |
492 | cam->params.color_params.saturation = vp->colour / 256; | |
493 | cam->params.color_params.contrast = vp->contrast / 256; | |
494 | ||
495 | DBG("Requested params: bright 0x%X, sat 0x%X, contrast 0x%X\n", | |
496 | cam->params.color_params.brightness, | |
497 | cam->params.color_params.saturation, | |
498 | cam->params.color_params.contrast); | |
499 | ||
500 | cpia2_set_color_params(cam); | |
501 | ||
502 | return retval; | |
503 | } | |
504 | ||
505 | static int sync(struct camera_data *cam, int frame_nr) | |
506 | { | |
507 | struct framebuf *frame = &cam->buffers[frame_nr]; | |
508 | ||
509 | while (1) { | |
510 | if (frame->status == FRAME_READY) | |
511 | return 0; | |
512 | ||
513 | if (!cam->streaming) { | |
514 | frame->status = FRAME_READY; | |
515 | frame->length = 0; | |
516 | return 0; | |
517 | } | |
518 | ||
2ae15191 | 519 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
520 | wait_event_interruptible(cam->wq_stream, |
521 | !cam->streaming || | |
522 | frame->status == FRAME_READY); | |
2ae15191 | 523 | mutex_lock(&cam->busy_lock); |
ab33d507 AC |
524 | if (signal_pending(current)) |
525 | return -ERESTARTSYS; | |
526 | if(!cam->present) | |
527 | return -ENOTTY; | |
528 | } | |
529 | } | |
530 | ||
531 | /****************************************************************************** | |
532 | * | |
533 | * ioctl_set_window_size | |
534 | * | |
535 | *****************************************************************************/ | |
536 | static int ioctl_set_window_size(void *arg, struct camera_data *cam, | |
537 | struct cpia2_fh *fh) | |
538 | { | |
539 | /* copy_from_user, check validity, copy to internal structure */ | |
540 | struct video_window *vw; | |
541 | int frame, err; | |
542 | vw = arg; | |
543 | ||
544 | if (vw->clipcount != 0) /* clipping not supported */ | |
545 | return -EINVAL; | |
546 | ||
547 | if (vw->clips != NULL) /* clipping not supported */ | |
548 | return -EINVAL; | |
549 | ||
550 | /* Ensure that only this process can change the format. */ | |
551 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); | |
552 | if(err != 0) | |
553 | return err; | |
554 | ||
555 | cam->pixelformat = V4L2_PIX_FMT_JPEG; | |
556 | ||
557 | /* Be sure to supply the Huffman tables, this isn't MJPEG */ | |
558 | cam->params.compression.inhibit_htables = 0; | |
559 | ||
560 | /* we set the video window to something smaller or equal to what | |
561 | * is requested by the user??? | |
562 | */ | |
563 | DBG("Requested width = %d, height = %d\n", vw->width, vw->height); | |
564 | if (vw->width != cam->vw.width || vw->height != cam->vw.height) { | |
565 | cam->vw.width = vw->width; | |
566 | cam->vw.height = vw->height; | |
567 | cam->params.roi.width = vw->width; | |
568 | cam->params.roi.height = vw->height; | |
569 | cpia2_set_format(cam); | |
570 | } | |
571 | ||
572 | for (frame = 0; frame < cam->num_frames; ++frame) { | |
573 | if (cam->buffers[frame].status == FRAME_READING) | |
574 | if ((err = sync(cam, frame)) < 0) | |
575 | return err; | |
576 | ||
577 | cam->buffers[frame].status = FRAME_EMPTY; | |
578 | } | |
579 | ||
580 | return 0; | |
581 | } | |
582 | ||
583 | /****************************************************************************** | |
584 | * | |
585 | * ioctl_get_mbuf | |
586 | * | |
587 | *****************************************************************************/ | |
588 | static int ioctl_get_mbuf(void *arg, struct camera_data *cam) | |
589 | { | |
590 | struct video_mbuf *vm; | |
591 | int i; | |
592 | vm = arg; | |
593 | ||
594 | memset(vm, 0, sizeof(*vm)); | |
595 | vm->size = cam->frame_size*cam->num_frames; | |
596 | vm->frames = cam->num_frames; | |
597 | for (i = 0; i < cam->num_frames; i++) | |
598 | vm->offsets[i] = cam->frame_size * i; | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
603 | /****************************************************************************** | |
604 | * | |
605 | * ioctl_mcapture | |
606 | * | |
607 | *****************************************************************************/ | |
608 | static int ioctl_mcapture(void *arg, struct camera_data *cam, | |
609 | struct cpia2_fh *fh) | |
610 | { | |
611 | struct video_mmap *vm; | |
612 | int video_size, err; | |
613 | vm = arg; | |
614 | ||
615 | if (vm->frame < 0 || vm->frame >= cam->num_frames) | |
616 | return -EINVAL; | |
617 | ||
618 | /* set video size */ | |
619 | video_size = cpia2_match_video_size(vm->width, vm->height); | |
620 | if (cam->video_size < 0) { | |
621 | return -EINVAL; | |
622 | } | |
623 | ||
624 | /* Ensure that only this process can change the format. */ | |
625 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); | |
626 | if(err != 0) | |
627 | return err; | |
628 | ||
629 | if (video_size != cam->video_size) { | |
630 | cam->video_size = video_size; | |
631 | cam->params.roi.width = vm->width; | |
632 | cam->params.roi.height = vm->height; | |
633 | cpia2_set_format(cam); | |
634 | } | |
635 | ||
636 | if (cam->buffers[vm->frame].status == FRAME_READING) | |
637 | if ((err=sync(cam, vm->frame)) < 0) | |
638 | return err; | |
639 | ||
640 | cam->buffers[vm->frame].status = FRAME_EMPTY; | |
641 | ||
642 | return cpia2_usb_stream_start(cam,cam->params.camera_state.stream_mode); | |
643 | } | |
644 | ||
645 | /****************************************************************************** | |
646 | * | |
647 | * ioctl_sync | |
648 | * | |
649 | *****************************************************************************/ | |
650 | static int ioctl_sync(void *arg, struct camera_data *cam) | |
651 | { | |
652 | int frame; | |
653 | ||
654 | frame = *(int*)arg; | |
655 | ||
656 | if (frame < 0 || frame >= cam->num_frames) | |
657 | return -EINVAL; | |
658 | ||
659 | return sync(cam, frame); | |
660 | } | |
661 | ||
662 | ||
663 | /****************************************************************************** | |
664 | * | |
665 | * ioctl_set_gpio | |
666 | * | |
667 | *****************************************************************************/ | |
668 | ||
669 | static int ioctl_set_gpio(void *arg, struct camera_data *cam) | |
670 | { | |
671 | __u32 gpio_val; | |
672 | ||
673 | gpio_val = *(__u32*) arg; | |
674 | ||
675 | if (gpio_val &~ 0xFFU) | |
676 | return -EINVAL; | |
677 | ||
678 | return cpia2_set_gpio(cam, (unsigned char)gpio_val); | |
679 | } | |
680 | ||
681 | /****************************************************************************** | |
682 | * | |
683 | * ioctl_querycap | |
684 | * | |
685 | * V4L2 device capabilities | |
686 | * | |
687 | *****************************************************************************/ | |
688 | ||
689 | static int ioctl_querycap(void *arg, struct camera_data *cam) | |
690 | { | |
691 | struct v4l2_capability *vc = arg; | |
692 | ||
693 | memset(vc, 0, sizeof(*vc)); | |
694 | strcpy(vc->driver, "cpia2"); | |
695 | ||
696 | if (cam->params.pnp_id.product == 0x151) | |
697 | strcpy(vc->card, "QX5 Microscope"); | |
698 | else | |
699 | strcpy(vc->card, "CPiA2 Camera"); | |
700 | switch (cam->params.pnp_id.device_type) { | |
701 | case DEVICE_STV_672: | |
702 | strcat(vc->card, " (672/"); | |
703 | break; | |
704 | case DEVICE_STV_676: | |
705 | strcat(vc->card, " (676/"); | |
706 | break; | |
707 | default: | |
708 | strcat(vc->card, " (???/"); | |
709 | break; | |
710 | } | |
711 | switch (cam->params.version.sensor_flags) { | |
712 | case CPIA2_VP_SENSOR_FLAGS_404: | |
713 | strcat(vc->card, "404)"); | |
714 | break; | |
715 | case CPIA2_VP_SENSOR_FLAGS_407: | |
716 | strcat(vc->card, "407)"); | |
717 | break; | |
718 | case CPIA2_VP_SENSOR_FLAGS_409: | |
719 | strcat(vc->card, "409)"); | |
720 | break; | |
721 | case CPIA2_VP_SENSOR_FLAGS_410: | |
722 | strcat(vc->card, "410)"); | |
723 | break; | |
724 | case CPIA2_VP_SENSOR_FLAGS_500: | |
725 | strcat(vc->card, "500)"); | |
726 | break; | |
727 | default: | |
728 | strcat(vc->card, "???)"); | |
729 | break; | |
730 | } | |
731 | ||
732 | if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) <0) | |
733 | memset(vc->bus_info,0, sizeof(vc->bus_info)); | |
734 | ||
735 | vc->version = KERNEL_VERSION(CPIA2_MAJ_VER, CPIA2_MIN_VER, | |
736 | CPIA2_PATCH_VER); | |
737 | ||
738 | vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | | |
739 | V4L2_CAP_READWRITE | | |
740 | V4L2_CAP_STREAMING; | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | /****************************************************************************** | |
746 | * | |
747 | * ioctl_input | |
748 | * | |
749 | * V4L2 input get/set/enumerate | |
750 | * | |
751 | *****************************************************************************/ | |
752 | ||
753 | static int ioctl_input(unsigned int ioclt_nr,void *arg,struct camera_data *cam) | |
754 | { | |
755 | struct v4l2_input *i = arg; | |
756 | ||
757 | if(ioclt_nr != VIDIOC_G_INPUT) { | |
758 | if (i->index != 0) | |
759 | return -EINVAL; | |
760 | } | |
761 | ||
762 | memset(i, 0, sizeof(*i)); | |
763 | strcpy(i->name, "Camera"); | |
764 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
765 | ||
766 | return 0; | |
767 | } | |
768 | ||
769 | /****************************************************************************** | |
770 | * | |
771 | * ioctl_enum_fmt | |
772 | * | |
773 | * V4L2 format enumerate | |
774 | * | |
775 | *****************************************************************************/ | |
776 | ||
777 | static int ioctl_enum_fmt(void *arg,struct camera_data *cam) | |
778 | { | |
779 | struct v4l2_fmtdesc *f = arg; | |
780 | int index = f->index; | |
781 | ||
782 | if (index < 0 || index > 1) | |
783 | return -EINVAL; | |
784 | ||
785 | memset(f, 0, sizeof(*f)); | |
786 | f->index = index; | |
787 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
788 | f->flags = V4L2_FMT_FLAG_COMPRESSED; | |
789 | switch(index) { | |
790 | case 0: | |
791 | strcpy(f->description, "MJPEG"); | |
792 | f->pixelformat = V4L2_PIX_FMT_MJPEG; | |
793 | break; | |
794 | case 1: | |
795 | strcpy(f->description, "JPEG"); | |
796 | f->pixelformat = V4L2_PIX_FMT_JPEG; | |
797 | break; | |
798 | default: | |
799 | return -EINVAL; | |
800 | } | |
801 | ||
802 | return 0; | |
803 | } | |
804 | ||
805 | /****************************************************************************** | |
806 | * | |
807 | * ioctl_try_fmt | |
808 | * | |
809 | * V4L2 format try | |
810 | * | |
811 | *****************************************************************************/ | |
812 | ||
813 | static int ioctl_try_fmt(void *arg,struct camera_data *cam) | |
814 | { | |
815 | struct v4l2_format *f = arg; | |
816 | ||
817 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
818 | return -EINVAL; | |
819 | ||
820 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG && | |
821 | f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) | |
822 | return -EINVAL; | |
823 | ||
824 | f->fmt.pix.field = V4L2_FIELD_NONE; | |
825 | f->fmt.pix.bytesperline = 0; | |
826 | f->fmt.pix.sizeimage = cam->frame_size; | |
827 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; | |
828 | f->fmt.pix.priv = 0; | |
829 | ||
830 | switch (cpia2_match_video_size(f->fmt.pix.width, f->fmt.pix.height)) { | |
831 | case VIDEOSIZE_VGA: | |
832 | f->fmt.pix.width = 640; | |
833 | f->fmt.pix.height = 480; | |
834 | break; | |
835 | case VIDEOSIZE_CIF: | |
836 | f->fmt.pix.width = 352; | |
837 | f->fmt.pix.height = 288; | |
838 | break; | |
839 | case VIDEOSIZE_QVGA: | |
840 | f->fmt.pix.width = 320; | |
841 | f->fmt.pix.height = 240; | |
842 | break; | |
843 | case VIDEOSIZE_288_216: | |
844 | f->fmt.pix.width = 288; | |
845 | f->fmt.pix.height = 216; | |
846 | break; | |
847 | case VIDEOSIZE_256_192: | |
848 | f->fmt.pix.width = 256; | |
849 | f->fmt.pix.height = 192; | |
850 | break; | |
851 | case VIDEOSIZE_224_168: | |
852 | f->fmt.pix.width = 224; | |
853 | f->fmt.pix.height = 168; | |
854 | break; | |
855 | case VIDEOSIZE_192_144: | |
856 | f->fmt.pix.width = 192; | |
857 | f->fmt.pix.height = 144; | |
858 | break; | |
859 | case VIDEOSIZE_QCIF: | |
860 | default: | |
861 | f->fmt.pix.width = 176; | |
862 | f->fmt.pix.height = 144; | |
863 | break; | |
864 | } | |
865 | ||
866 | return 0; | |
867 | } | |
868 | ||
869 | /****************************************************************************** | |
870 | * | |
871 | * ioctl_set_fmt | |
872 | * | |
873 | * V4L2 format set | |
874 | * | |
875 | *****************************************************************************/ | |
876 | ||
877 | static int ioctl_set_fmt(void *arg,struct camera_data *cam, struct cpia2_fh *fh) | |
878 | { | |
879 | struct v4l2_format *f = arg; | |
880 | int err, frame; | |
881 | ||
882 | err = ioctl_try_fmt(arg, cam); | |
883 | if(err != 0) | |
884 | return err; | |
885 | ||
886 | /* Ensure that only this process can change the format. */ | |
887 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); | |
888 | if(err != 0) { | |
889 | return err; | |
890 | } | |
891 | ||
892 | cam->pixelformat = f->fmt.pix.pixelformat; | |
893 | ||
894 | /* NOTE: This should be set to 1 for MJPEG, but some apps don't handle | |
895 | * the missing Huffman table properly. */ | |
896 | cam->params.compression.inhibit_htables = 0; | |
897 | /*f->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG;*/ | |
898 | ||
899 | /* we set the video window to something smaller or equal to what | |
900 | * is requested by the user??? | |
901 | */ | |
902 | DBG("Requested width = %d, height = %d\n", | |
903 | f->fmt.pix.width, f->fmt.pix.height); | |
904 | if (f->fmt.pix.width != cam->vw.width || | |
905 | f->fmt.pix.height != cam->vw.height) { | |
906 | cam->vw.width = f->fmt.pix.width; | |
907 | cam->vw.height = f->fmt.pix.height; | |
908 | cam->params.roi.width = f->fmt.pix.width; | |
909 | cam->params.roi.height = f->fmt.pix.height; | |
910 | cpia2_set_format(cam); | |
911 | } | |
912 | ||
913 | for (frame = 0; frame < cam->num_frames; ++frame) { | |
914 | if (cam->buffers[frame].status == FRAME_READING) | |
915 | if ((err = sync(cam, frame)) < 0) | |
916 | return err; | |
917 | ||
918 | cam->buffers[frame].status = FRAME_EMPTY; | |
919 | } | |
920 | ||
921 | return 0; | |
922 | } | |
923 | ||
924 | /****************************************************************************** | |
925 | * | |
926 | * ioctl_get_fmt | |
927 | * | |
928 | * V4L2 format get | |
929 | * | |
930 | *****************************************************************************/ | |
931 | ||
932 | static int ioctl_get_fmt(void *arg,struct camera_data *cam) | |
933 | { | |
934 | struct v4l2_format *f = arg; | |
935 | ||
936 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
937 | return -EINVAL; | |
938 | ||
939 | f->fmt.pix.width = cam->vw.width; | |
940 | f->fmt.pix.height = cam->vw.height; | |
941 | f->fmt.pix.pixelformat = cam->pixelformat; | |
942 | f->fmt.pix.field = V4L2_FIELD_NONE; | |
943 | f->fmt.pix.bytesperline = 0; | |
944 | f->fmt.pix.sizeimage = cam->frame_size; | |
945 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; | |
946 | f->fmt.pix.priv = 0; | |
947 | ||
948 | return 0; | |
949 | } | |
950 | ||
951 | /****************************************************************************** | |
952 | * | |
953 | * ioctl_cropcap | |
954 | * | |
955 | * V4L2 query cropping capabilities | |
956 | * NOTE: cropping is currently disabled | |
957 | * | |
958 | *****************************************************************************/ | |
959 | ||
960 | static int ioctl_cropcap(void *arg,struct camera_data *cam) | |
961 | { | |
962 | struct v4l2_cropcap *c = arg; | |
963 | ||
964 | if (c->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
965 | return -EINVAL; | |
966 | ||
967 | c->bounds.left = 0; | |
968 | c->bounds.top = 0; | |
969 | c->bounds.width = cam->vw.width; | |
970 | c->bounds.height = cam->vw.height; | |
971 | c->defrect.left = 0; | |
972 | c->defrect.top = 0; | |
973 | c->defrect.width = cam->vw.width; | |
974 | c->defrect.height = cam->vw.height; | |
975 | c->pixelaspect.numerator = 1; | |
976 | c->pixelaspect.denominator = 1; | |
977 | ||
978 | return 0; | |
979 | } | |
980 | ||
981 | /****************************************************************************** | |
982 | * | |
983 | * ioctl_queryctrl | |
984 | * | |
985 | * V4L2 query possible control variables | |
986 | * | |
987 | *****************************************************************************/ | |
988 | ||
989 | static int ioctl_queryctrl(void *arg,struct camera_data *cam) | |
990 | { | |
991 | struct v4l2_queryctrl *c = arg; | |
992 | int i; | |
993 | ||
994 | for(i=0; i<NUM_CONTROLS; ++i) { | |
995 | if(c->id == controls[i].id) { | |
996 | memcpy(c, controls+i, sizeof(*c)); | |
997 | break; | |
998 | } | |
999 | } | |
1000 | ||
1001 | if(i == NUM_CONTROLS) | |
1002 | return -EINVAL; | |
1003 | ||
1004 | /* Some devices have additional limitations */ | |
1005 | switch(c->id) { | |
1006 | case V4L2_CID_BRIGHTNESS: | |
1007 | /*** | |
1008 | * Don't let the register be set to zero - bug in VP4 | |
1009 | * flash of full brightness | |
1010 | ***/ | |
1011 | if (cam->params.pnp_id.device_type == DEVICE_STV_672) | |
1012 | c->minimum = 1; | |
1013 | break; | |
1014 | case V4L2_CID_VFLIP: | |
1015 | // VP5 Only | |
1016 | if(cam->params.pnp_id.device_type == DEVICE_STV_672) | |
1017 | c->flags |= V4L2_CTRL_FLAG_DISABLED; | |
1018 | break; | |
1019 | case CPIA2_CID_FRAMERATE: | |
1020 | if(cam->params.pnp_id.device_type == DEVICE_STV_672 && | |
1021 | cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ | |
1022 | // Maximum 15fps | |
ab33d507 AC |
1023 | for(i=0; i<c->maximum; ++i) { |
1024 | if(framerate_controls[i].value == | |
1025 | CPIA2_VP_FRAMERATE_15) { | |
1026 | c->maximum = i; | |
1027 | c->default_value = i; | |
1028 | } | |
1029 | } | |
1030 | } | |
1031 | break; | |
1032 | case CPIA2_CID_FLICKER_MODE: | |
1033 | // Flicker control only valid for 672. | |
1034 | if(cam->params.pnp_id.device_type != DEVICE_STV_672) | |
1035 | c->flags |= V4L2_CTRL_FLAG_DISABLED; | |
1036 | break; | |
1037 | case CPIA2_CID_LIGHTS: | |
1038 | // Light control only valid for the QX5 Microscope. | |
1039 | if(cam->params.pnp_id.product != 0x151) | |
1040 | c->flags |= V4L2_CTRL_FLAG_DISABLED; | |
1041 | break; | |
1042 | default: | |
1043 | break; | |
1044 | } | |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | /****************************************************************************** | |
1050 | * | |
1051 | * ioctl_querymenu | |
1052 | * | |
1053 | * V4L2 query possible control variables | |
1054 | * | |
1055 | *****************************************************************************/ | |
1056 | ||
1057 | static int ioctl_querymenu(void *arg,struct camera_data *cam) | |
1058 | { | |
1059 | struct v4l2_querymenu *m = arg; | |
1060 | ||
1061 | memset(m->name, 0, sizeof(m->name)); | |
1062 | m->reserved = 0; | |
1063 | ||
1064 | switch(m->id) { | |
1065 | case CPIA2_CID_FLICKER_MODE: | |
1066 | if(m->index < 0 || m->index >= NUM_FLICKER_CONTROLS) | |
1067 | return -EINVAL; | |
1068 | ||
1069 | strcpy(m->name, flicker_controls[m->index].name); | |
1070 | break; | |
1071 | case CPIA2_CID_FRAMERATE: | |
1072 | { | |
1073 | int maximum = NUM_FRAMERATE_CONTROLS - 1; | |
1074 | if(cam->params.pnp_id.device_type == DEVICE_STV_672 && | |
1075 | cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ | |
1076 | // Maximum 15fps | |
1077 | int i; | |
1078 | for(i=0; i<maximum; ++i) { | |
1079 | if(framerate_controls[i].value == | |
1080 | CPIA2_VP_FRAMERATE_15) | |
1081 | maximum = i; | |
1082 | } | |
1083 | } | |
1084 | if(m->index < 0 || m->index > maximum) | |
1085 | return -EINVAL; | |
1086 | ||
1087 | strcpy(m->name, framerate_controls[m->index].name); | |
1088 | break; | |
1089 | } | |
1090 | case CPIA2_CID_LIGHTS: | |
1091 | if(m->index < 0 || m->index >= NUM_LIGHTS_CONTROLS) | |
1092 | return -EINVAL; | |
1093 | ||
1094 | strcpy(m->name, lights_controls[m->index].name); | |
1095 | break; | |
1096 | default: | |
1097 | return -EINVAL; | |
1098 | } | |
1099 | ||
1100 | return 0; | |
1101 | } | |
1102 | ||
1103 | /****************************************************************************** | |
1104 | * | |
1105 | * ioctl_g_ctrl | |
1106 | * | |
1107 | * V4L2 get the value of a control variable | |
1108 | * | |
1109 | *****************************************************************************/ | |
1110 | ||
1111 | static int ioctl_g_ctrl(void *arg,struct camera_data *cam) | |
1112 | { | |
1113 | struct v4l2_control *c = arg; | |
1114 | ||
1115 | switch(c->id) { | |
1116 | case V4L2_CID_BRIGHTNESS: | |
1117 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_BRIGHTNESS, | |
1118 | TRANSFER_READ, 0); | |
1119 | c->value = cam->params.color_params.brightness; | |
1120 | break; | |
1121 | case V4L2_CID_CONTRAST: | |
1122 | cpia2_do_command(cam, CPIA2_CMD_GET_CONTRAST, | |
1123 | TRANSFER_READ, 0); | |
1124 | c->value = cam->params.color_params.contrast; | |
1125 | break; | |
1126 | case V4L2_CID_SATURATION: | |
1127 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_SATURATION, | |
1128 | TRANSFER_READ, 0); | |
1129 | c->value = cam->params.color_params.saturation; | |
1130 | break; | |
1131 | case V4L2_CID_HFLIP: | |
1132 | cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, | |
1133 | TRANSFER_READ, 0); | |
1134 | c->value = (cam->params.vp_params.user_effects & | |
1135 | CPIA2_VP_USER_EFFECTS_MIRROR) != 0; | |
1136 | break; | |
1137 | case V4L2_CID_VFLIP: | |
1138 | cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, | |
1139 | TRANSFER_READ, 0); | |
1140 | c->value = (cam->params.vp_params.user_effects & | |
1141 | CPIA2_VP_USER_EFFECTS_FLIP) != 0; | |
1142 | break; | |
1143 | case CPIA2_CID_TARGET_KB: | |
1144 | c->value = cam->params.vc_params.target_kb; | |
1145 | break; | |
1146 | case CPIA2_CID_GPIO: | |
1147 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, | |
1148 | TRANSFER_READ, 0); | |
1149 | c->value = cam->params.vp_params.gpio_data; | |
1150 | break; | |
1151 | case CPIA2_CID_FLICKER_MODE: | |
1152 | { | |
1153 | int i, mode; | |
1154 | cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES, | |
1155 | TRANSFER_READ, 0); | |
1156 | if(cam->params.flicker_control.cam_register & | |
1157 | CPIA2_VP_FLICKER_MODES_NEVER_FLICKER) { | |
1158 | mode = NEVER_FLICKER; | |
1159 | } else { | |
1160 | if(cam->params.flicker_control.cam_register & | |
1161 | CPIA2_VP_FLICKER_MODES_50HZ) { | |
657de3cd | 1162 | mode = FLICKER_50; |
ab33d507 | 1163 | } else { |
657de3cd | 1164 | mode = FLICKER_60; |
ab33d507 AC |
1165 | } |
1166 | } | |
1167 | for(i=0; i<NUM_FLICKER_CONTROLS; i++) { | |
1168 | if(flicker_controls[i].value == mode) { | |
1169 | c->value = i; | |
1170 | break; | |
1171 | } | |
1172 | } | |
1173 | if(i == NUM_FLICKER_CONTROLS) | |
1174 | return -EINVAL; | |
1175 | break; | |
1176 | } | |
1177 | case CPIA2_CID_FRAMERATE: | |
1178 | { | |
1179 | int maximum = NUM_FRAMERATE_CONTROLS - 1; | |
1180 | int i; | |
1181 | for(i=0; i<= maximum; i++) { | |
1182 | if(cam->params.vp_params.frame_rate == | |
1183 | framerate_controls[i].value) | |
1184 | break; | |
1185 | } | |
1186 | if(i > maximum) | |
1187 | return -EINVAL; | |
1188 | c->value = i; | |
1189 | break; | |
1190 | } | |
1191 | case CPIA2_CID_USB_ALT: | |
1192 | c->value = cam->params.camera_state.stream_mode; | |
1193 | break; | |
1194 | case CPIA2_CID_LIGHTS: | |
1195 | { | |
1196 | int i; | |
1197 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, | |
1198 | TRANSFER_READ, 0); | |
1199 | for(i=0; i<NUM_LIGHTS_CONTROLS; i++) { | |
1200 | if((cam->params.vp_params.gpio_data&GPIO_LIGHTS_MASK) == | |
1201 | lights_controls[i].value) { | |
1202 | break; | |
1203 | } | |
1204 | } | |
1205 | if(i == NUM_LIGHTS_CONTROLS) | |
1206 | return -EINVAL; | |
1207 | c->value = i; | |
1208 | break; | |
1209 | } | |
1210 | case CPIA2_CID_RESET_CAMERA: | |
1211 | return -EINVAL; | |
1212 | default: | |
1213 | return -EINVAL; | |
1214 | } | |
1215 | ||
1216 | DBG("Get control id:%d, value:%d\n", c->id, c->value); | |
1217 | ||
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | /****************************************************************************** | |
1222 | * | |
1223 | * ioctl_s_ctrl | |
1224 | * | |
1225 | * V4L2 set the value of a control variable | |
1226 | * | |
1227 | *****************************************************************************/ | |
1228 | ||
1229 | static int ioctl_s_ctrl(void *arg,struct camera_data *cam) | |
1230 | { | |
1231 | struct v4l2_control *c = arg; | |
1232 | int i; | |
1233 | int retval = 0; | |
1234 | ||
1235 | DBG("Set control id:%d, value:%d\n", c->id, c->value); | |
1236 | ||
1237 | /* Check that the value is in range */ | |
1238 | for(i=0; i<NUM_CONTROLS; i++) { | |
1239 | if(c->id == controls[i].id) { | |
1240 | if(c->value < controls[i].minimum || | |
1241 | c->value > controls[i].maximum) { | |
1242 | return -EINVAL; | |
1243 | } | |
1244 | break; | |
1245 | } | |
1246 | } | |
1247 | if(i == NUM_CONTROLS) | |
1248 | return -EINVAL; | |
1249 | ||
1250 | switch(c->id) { | |
1251 | case V4L2_CID_BRIGHTNESS: | |
1252 | cpia2_set_brightness(cam, c->value); | |
1253 | break; | |
1254 | case V4L2_CID_CONTRAST: | |
1255 | cpia2_set_contrast(cam, c->value); | |
1256 | break; | |
1257 | case V4L2_CID_SATURATION: | |
1258 | cpia2_set_saturation(cam, c->value); | |
1259 | break; | |
1260 | case V4L2_CID_HFLIP: | |
1261 | cpia2_set_property_mirror(cam, c->value); | |
1262 | break; | |
1263 | case V4L2_CID_VFLIP: | |
1264 | cpia2_set_property_flip(cam, c->value); | |
1265 | break; | |
1266 | case CPIA2_CID_TARGET_KB: | |
1267 | retval = cpia2_set_target_kb(cam, c->value); | |
1268 | break; | |
1269 | case CPIA2_CID_GPIO: | |
1270 | retval = cpia2_set_gpio(cam, c->value); | |
1271 | break; | |
1272 | case CPIA2_CID_FLICKER_MODE: | |
1273 | retval = cpia2_set_flicker_mode(cam, | |
1274 | flicker_controls[c->value].value); | |
1275 | break; | |
1276 | case CPIA2_CID_FRAMERATE: | |
1277 | retval = cpia2_set_fps(cam, framerate_controls[c->value].value); | |
1278 | break; | |
1279 | case CPIA2_CID_USB_ALT: | |
1280 | retval = cpia2_usb_change_streaming_alternate(cam, c->value); | |
1281 | break; | |
1282 | case CPIA2_CID_LIGHTS: | |
1283 | retval = cpia2_set_gpio(cam, lights_controls[c->value].value); | |
1284 | break; | |
1285 | case CPIA2_CID_RESET_CAMERA: | |
1286 | cpia2_usb_stream_pause(cam); | |
1287 | cpia2_reset_camera(cam); | |
1288 | cpia2_usb_stream_resume(cam); | |
1289 | break; | |
1290 | default: | |
1291 | retval = -EINVAL; | |
1292 | } | |
1293 | ||
1294 | return retval; | |
1295 | } | |
1296 | ||
1297 | /****************************************************************************** | |
1298 | * | |
1299 | * ioctl_g_jpegcomp | |
1300 | * | |
1301 | * V4L2 get the JPEG compression parameters | |
1302 | * | |
1303 | *****************************************************************************/ | |
1304 | ||
1305 | static int ioctl_g_jpegcomp(void *arg,struct camera_data *cam) | |
1306 | { | |
1307 | struct v4l2_jpegcompression *parms = arg; | |
1308 | ||
1309 | memset(parms, 0, sizeof(*parms)); | |
1310 | ||
1311 | parms->quality = 80; // TODO: Can this be made meaningful? | |
1312 | ||
1313 | parms->jpeg_markers = V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI; | |
1314 | if(!cam->params.compression.inhibit_htables) { | |
1315 | parms->jpeg_markers |= V4L2_JPEG_MARKER_DHT; | |
1316 | } | |
1317 | ||
1318 | parms->APPn = cam->APPn; | |
1319 | parms->APP_len = cam->APP_len; | |
1320 | if(cam->APP_len > 0) { | |
1321 | memcpy(parms->APP_data, cam->APP_data, cam->APP_len); | |
1322 | parms->jpeg_markers |= V4L2_JPEG_MARKER_APP; | |
1323 | } | |
1324 | ||
1325 | parms->COM_len = cam->COM_len; | |
1326 | if(cam->COM_len > 0) { | |
1327 | memcpy(parms->COM_data, cam->COM_data, cam->COM_len); | |
1328 | parms->jpeg_markers |= JPEG_MARKER_COM; | |
1329 | } | |
1330 | ||
1331 | DBG("G_JPEGCOMP APP_len:%d COM_len:%d\n", | |
1332 | parms->APP_len, parms->COM_len); | |
1333 | ||
1334 | return 0; | |
1335 | } | |
1336 | ||
1337 | /****************************************************************************** | |
1338 | * | |
1339 | * ioctl_s_jpegcomp | |
1340 | * | |
1341 | * V4L2 set the JPEG compression parameters | |
1342 | * NOTE: quality and some jpeg_markers are ignored. | |
1343 | * | |
1344 | *****************************************************************************/ | |
1345 | ||
1346 | static int ioctl_s_jpegcomp(void *arg,struct camera_data *cam) | |
1347 | { | |
1348 | struct v4l2_jpegcompression *parms = arg; | |
1349 | ||
1350 | DBG("S_JPEGCOMP APP_len:%d COM_len:%d\n", | |
1351 | parms->APP_len, parms->COM_len); | |
1352 | ||
1353 | cam->params.compression.inhibit_htables = | |
1354 | !(parms->jpeg_markers & V4L2_JPEG_MARKER_DHT); | |
1355 | ||
1356 | if(parms->APP_len != 0) { | |
1357 | if(parms->APP_len > 0 && | |
1358 | parms->APP_len <= sizeof(cam->APP_data) && | |
1359 | parms->APPn >= 0 && parms->APPn <= 15) { | |
1360 | cam->APPn = parms->APPn; | |
1361 | cam->APP_len = parms->APP_len; | |
1362 | memcpy(cam->APP_data, parms->APP_data, parms->APP_len); | |
1363 | } else { | |
1364 | LOG("Bad APPn Params n=%d len=%d\n", | |
1365 | parms->APPn, parms->APP_len); | |
1366 | return -EINVAL; | |
1367 | } | |
1368 | } else { | |
1369 | cam->APP_len = 0; | |
1370 | } | |
1371 | ||
1372 | if(parms->COM_len != 0) { | |
1373 | if(parms->COM_len > 0 && | |
1374 | parms->COM_len <= sizeof(cam->COM_data)) { | |
1375 | cam->COM_len = parms->COM_len; | |
1376 | memcpy(cam->COM_data, parms->COM_data, parms->COM_len); | |
1377 | } else { | |
1378 | LOG("Bad COM_len=%d\n", parms->COM_len); | |
1379 | return -EINVAL; | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | /****************************************************************************** | |
1387 | * | |
1388 | * ioctl_reqbufs | |
1389 | * | |
1390 | * V4L2 Initiate memory mapping. | |
1391 | * NOTE: The user's request is ignored. For now the buffers are fixed. | |
1392 | * | |
1393 | *****************************************************************************/ | |
1394 | ||
1395 | static int ioctl_reqbufs(void *arg,struct camera_data *cam) | |
1396 | { | |
1397 | struct v4l2_requestbuffers *req = arg; | |
1398 | ||
1399 | if(req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1400 | req->memory != V4L2_MEMORY_MMAP) | |
1401 | return -EINVAL; | |
1402 | ||
1403 | DBG("REQBUFS requested:%d returning:%d\n", req->count, cam->num_frames); | |
1404 | req->count = cam->num_frames; | |
1405 | memset(&req->reserved, 0, sizeof(req->reserved)); | |
1406 | ||
1407 | return 0; | |
1408 | } | |
1409 | ||
1410 | /****************************************************************************** | |
1411 | * | |
1412 | * ioctl_querybuf | |
1413 | * | |
1414 | * V4L2 Query memory buffer status. | |
1415 | * | |
1416 | *****************************************************************************/ | |
1417 | ||
1418 | static int ioctl_querybuf(void *arg,struct camera_data *cam) | |
1419 | { | |
1420 | struct v4l2_buffer *buf = arg; | |
1421 | ||
1422 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1423 | buf->index > cam->num_frames) | |
1424 | return -EINVAL; | |
1425 | ||
1426 | buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; | |
1427 | buf->length = cam->frame_size; | |
1428 | ||
1429 | buf->memory = V4L2_MEMORY_MMAP; | |
1430 | ||
1431 | if(cam->mmapped) | |
1432 | buf->flags = V4L2_BUF_FLAG_MAPPED; | |
1433 | else | |
1434 | buf->flags = 0; | |
1435 | ||
1436 | switch (cam->buffers[buf->index].status) { | |
1437 | case FRAME_EMPTY: | |
1438 | case FRAME_ERROR: | |
1439 | case FRAME_READING: | |
1440 | buf->bytesused = 0; | |
1441 | buf->flags = V4L2_BUF_FLAG_QUEUED; | |
1442 | break; | |
1443 | case FRAME_READY: | |
1444 | buf->bytesused = cam->buffers[buf->index].length; | |
1445 | buf->timestamp = cam->buffers[buf->index].timestamp; | |
1446 | buf->sequence = cam->buffers[buf->index].seq; | |
1447 | buf->flags = V4L2_BUF_FLAG_DONE; | |
1448 | break; | |
1449 | } | |
1450 | ||
1451 | DBG("QUERYBUF index:%d offset:%d flags:%d seq:%d bytesused:%d\n", | |
1452 | buf->index, buf->m.offset, buf->flags, buf->sequence, | |
1453 | buf->bytesused); | |
1454 | ||
1455 | return 0; | |
1456 | } | |
1457 | ||
1458 | /****************************************************************************** | |
1459 | * | |
1460 | * ioctl_qbuf | |
1461 | * | |
1462 | * V4L2 User is freeing buffer | |
1463 | * | |
1464 | *****************************************************************************/ | |
1465 | ||
1466 | static int ioctl_qbuf(void *arg,struct camera_data *cam) | |
1467 | { | |
1468 | struct v4l2_buffer *buf = arg; | |
1469 | ||
1470 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1471 | buf->memory != V4L2_MEMORY_MMAP || | |
1472 | buf->index > cam->num_frames) | |
1473 | return -EINVAL; | |
1474 | ||
1475 | DBG("QBUF #%d\n", buf->index); | |
1476 | ||
1477 | if(cam->buffers[buf->index].status == FRAME_READY) | |
1478 | cam->buffers[buf->index].status = FRAME_EMPTY; | |
1479 | ||
1480 | return 0; | |
1481 | } | |
1482 | ||
1483 | /****************************************************************************** | |
1484 | * | |
1485 | * find_earliest_filled_buffer | |
1486 | * | |
1487 | * Helper for ioctl_dqbuf. Find the next ready buffer. | |
1488 | * | |
1489 | *****************************************************************************/ | |
1490 | ||
1491 | static int find_earliest_filled_buffer(struct camera_data *cam) | |
1492 | { | |
1493 | int i; | |
1494 | int found = -1; | |
1495 | for (i=0; i<cam->num_frames; i++) { | |
1496 | if(cam->buffers[i].status == FRAME_READY) { | |
1497 | if(found < 0) { | |
1498 | found = i; | |
1499 | } else { | |
1500 | /* find which buffer is earlier */ | |
1501 | struct timeval *tv1, *tv2; | |
1502 | tv1 = &cam->buffers[i].timestamp; | |
1503 | tv2 = &cam->buffers[found].timestamp; | |
1504 | if(tv1->tv_sec < tv2->tv_sec || | |
1505 | (tv1->tv_sec == tv2->tv_sec && | |
1506 | tv1->tv_usec < tv2->tv_usec)) | |
1507 | found = i; | |
1508 | } | |
1509 | } | |
1510 | } | |
1511 | return found; | |
1512 | } | |
1513 | ||
1514 | /****************************************************************************** | |
1515 | * | |
1516 | * ioctl_dqbuf | |
1517 | * | |
1518 | * V4L2 User is asking for a filled buffer. | |
1519 | * | |
1520 | *****************************************************************************/ | |
1521 | ||
1522 | static int ioctl_dqbuf(void *arg,struct camera_data *cam, struct file *file) | |
1523 | { | |
1524 | struct v4l2_buffer *buf = arg; | |
1525 | int frame; | |
1526 | ||
1527 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1528 | buf->memory != V4L2_MEMORY_MMAP) | |
1529 | return -EINVAL; | |
1530 | ||
1531 | frame = find_earliest_filled_buffer(cam); | |
1532 | ||
1533 | if(frame < 0 && file->f_flags&O_NONBLOCK) | |
1534 | return -EAGAIN; | |
1535 | ||
1536 | if(frame < 0) { | |
1537 | /* Wait for a frame to become available */ | |
1538 | struct framebuf *cb=cam->curbuff; | |
2ae15191 | 1539 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1540 | wait_event_interruptible(cam->wq_stream, |
1541 | !cam->present || | |
1542 | (cb=cam->curbuff)->status == FRAME_READY); | |
2ae15191 | 1543 | mutex_lock(&cam->busy_lock); |
ab33d507 AC |
1544 | if (signal_pending(current)) |
1545 | return -ERESTARTSYS; | |
1546 | if(!cam->present) | |
1547 | return -ENOTTY; | |
1548 | frame = cb->num; | |
1549 | } | |
1550 | ||
1551 | ||
1552 | buf->index = frame; | |
1553 | buf->bytesused = cam->buffers[buf->index].length; | |
1554 | buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE; | |
1555 | buf->field = V4L2_FIELD_NONE; | |
1556 | buf->timestamp = cam->buffers[buf->index].timestamp; | |
1557 | buf->sequence = cam->buffers[buf->index].seq; | |
1558 | buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; | |
1559 | buf->length = cam->frame_size; | |
1560 | buf->input = 0; | |
1561 | buf->reserved = 0; | |
1562 | memset(&buf->timecode, 0, sizeof(buf->timecode)); | |
1563 | ||
1564 | DBG("DQBUF #%d status:%d seq:%d length:%d\n", buf->index, | |
1565 | cam->buffers[buf->index].status, buf->sequence, buf->bytesused); | |
1566 | ||
1567 | return 0; | |
1568 | } | |
1569 | ||
1570 | /****************************************************************************** | |
1571 | * | |
1572 | * cpia2_ioctl | |
1573 | * | |
1574 | *****************************************************************************/ | |
1575 | static int cpia2_do_ioctl(struct inode *inode, struct file *file, | |
1576 | unsigned int ioctl_nr, void *arg) | |
1577 | { | |
c170ecf4 | 1578 | struct camera_data *cam = video_drvdata(file); |
ab33d507 AC |
1579 | int retval = 0; |
1580 | ||
1581 | if (!cam) | |
1582 | return -ENOTTY; | |
1583 | ||
1584 | /* make this _really_ smp-safe */ | |
2ae15191 | 1585 | if (mutex_lock_interruptible(&cam->busy_lock)) |
ab33d507 AC |
1586 | return -ERESTARTSYS; |
1587 | ||
1588 | if (!cam->present) { | |
2ae15191 | 1589 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1590 | return -ENODEV; |
1591 | } | |
1592 | ||
1593 | /* Priority check */ | |
1594 | switch (ioctl_nr) { | |
1595 | case VIDIOCSWIN: | |
1596 | case VIDIOCMCAPTURE: | |
1597 | case VIDIOC_S_FMT: | |
1598 | { | |
1599 | struct cpia2_fh *fh = file->private_data; | |
1600 | retval = v4l2_prio_check(&cam->prio, &fh->prio); | |
1601 | if(retval) { | |
2ae15191 | 1602 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1603 | return retval; |
1604 | } | |
1605 | break; | |
1606 | } | |
1607 | case VIDIOCGMBUF: | |
1608 | case VIDIOCSYNC: | |
1609 | { | |
1610 | struct cpia2_fh *fh = file->private_data; | |
1611 | if(fh->prio != V4L2_PRIORITY_RECORD) { | |
2ae15191 | 1612 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1613 | return -EBUSY; |
1614 | } | |
1615 | break; | |
1616 | } | |
1617 | default: | |
1618 | break; | |
1619 | } | |
1620 | ||
1621 | switch (ioctl_nr) { | |
be787ace | 1622 | case VIDIOCGCAP: /* query capabilities */ |
ab33d507 AC |
1623 | retval = ioctl_cap_query(arg, cam); |
1624 | break; | |
1625 | ||
1626 | case VIDIOCGCHAN: /* get video source - we are a camera, nothing else */ | |
1627 | retval = ioctl_get_channel(arg); | |
1628 | break; | |
1629 | case VIDIOCSCHAN: /* set video source - we are a camera, nothing else */ | |
1630 | retval = ioctl_set_channel(arg); | |
1631 | break; | |
1632 | case VIDIOCGPICT: /* image properties */ | |
1633 | memcpy(arg, &cam->vp, sizeof(struct video_picture)); | |
1634 | break; | |
1635 | case VIDIOCSPICT: | |
1636 | retval = ioctl_set_image_prop(arg, cam); | |
1637 | break; | |
1638 | case VIDIOCGWIN: /* get/set capture window */ | |
1639 | memcpy(arg, &cam->vw, sizeof(struct video_window)); | |
1640 | break; | |
1641 | case VIDIOCSWIN: | |
1642 | retval = ioctl_set_window_size(arg, cam, file->private_data); | |
1643 | break; | |
1644 | case VIDIOCGMBUF: /* mmap interface */ | |
1645 | retval = ioctl_get_mbuf(arg, cam); | |
1646 | break; | |
1647 | case VIDIOCMCAPTURE: | |
1648 | retval = ioctl_mcapture(arg, cam, file->private_data); | |
1649 | break; | |
1650 | case VIDIOCSYNC: | |
1651 | retval = ioctl_sync(arg, cam); | |
1652 | break; | |
1653 | /* pointless to implement overlay with this camera */ | |
1654 | case VIDIOCCAPTURE: | |
1655 | case VIDIOCGFBUF: | |
1656 | case VIDIOCSFBUF: | |
1657 | case VIDIOCKEY: | |
1658 | retval = -EINVAL; | |
1659 | break; | |
1660 | ||
1661 | /* tuner interface - we have none */ | |
1662 | case VIDIOCGTUNER: | |
1663 | case VIDIOCSTUNER: | |
1664 | case VIDIOCGFREQ: | |
1665 | case VIDIOCSFREQ: | |
1666 | retval = -EINVAL; | |
1667 | break; | |
1668 | ||
1669 | /* audio interface - we have none */ | |
1670 | case VIDIOCGAUDIO: | |
1671 | case VIDIOCSAUDIO: | |
1672 | retval = -EINVAL; | |
1673 | break; | |
1674 | ||
1675 | /* CPIA2 extension to Video4Linux API */ | |
1676 | case CPIA2_IOC_SET_GPIO: | |
1677 | retval = ioctl_set_gpio(arg, cam); | |
1678 | break; | |
1679 | case VIDIOC_QUERYCAP: | |
1680 | retval = ioctl_querycap(arg,cam); | |
1681 | break; | |
1682 | ||
1683 | case VIDIOC_ENUMINPUT: | |
1684 | case VIDIOC_G_INPUT: | |
1685 | case VIDIOC_S_INPUT: | |
1686 | retval = ioctl_input(ioctl_nr, arg,cam); | |
1687 | break; | |
1688 | ||
1689 | case VIDIOC_ENUM_FMT: | |
1690 | retval = ioctl_enum_fmt(arg,cam); | |
1691 | break; | |
1692 | case VIDIOC_TRY_FMT: | |
1693 | retval = ioctl_try_fmt(arg,cam); | |
1694 | break; | |
1695 | case VIDIOC_G_FMT: | |
1696 | retval = ioctl_get_fmt(arg,cam); | |
1697 | break; | |
1698 | case VIDIOC_S_FMT: | |
1699 | retval = ioctl_set_fmt(arg,cam,file->private_data); | |
1700 | break; | |
1701 | ||
1702 | case VIDIOC_CROPCAP: | |
1703 | retval = ioctl_cropcap(arg,cam); | |
1704 | break; | |
1705 | case VIDIOC_G_CROP: | |
1706 | case VIDIOC_S_CROP: | |
1707 | // TODO: I think cropping can be implemented - SJB | |
1708 | retval = -EINVAL; | |
1709 | break; | |
1710 | ||
1711 | case VIDIOC_QUERYCTRL: | |
1712 | retval = ioctl_queryctrl(arg,cam); | |
1713 | break; | |
1714 | case VIDIOC_QUERYMENU: | |
1715 | retval = ioctl_querymenu(arg,cam); | |
1716 | break; | |
1717 | case VIDIOC_G_CTRL: | |
1718 | retval = ioctl_g_ctrl(arg,cam); | |
1719 | break; | |
1720 | case VIDIOC_S_CTRL: | |
1721 | retval = ioctl_s_ctrl(arg,cam); | |
1722 | break; | |
1723 | ||
1724 | case VIDIOC_G_JPEGCOMP: | |
1725 | retval = ioctl_g_jpegcomp(arg,cam); | |
1726 | break; | |
1727 | case VIDIOC_S_JPEGCOMP: | |
1728 | retval = ioctl_s_jpegcomp(arg,cam); | |
1729 | break; | |
1730 | ||
1731 | case VIDIOC_G_PRIORITY: | |
1732 | { | |
1733 | struct cpia2_fh *fh = file->private_data; | |
1734 | *(enum v4l2_priority*)arg = fh->prio; | |
1735 | break; | |
1736 | } | |
1737 | case VIDIOC_S_PRIORITY: | |
1738 | { | |
1739 | struct cpia2_fh *fh = file->private_data; | |
1740 | enum v4l2_priority prio; | |
1741 | prio = *(enum v4l2_priority*)arg; | |
1742 | if(cam->streaming && | |
1743 | prio != fh->prio && | |
1744 | fh->prio == V4L2_PRIORITY_RECORD) { | |
1745 | /* Can't drop record priority while streaming */ | |
1746 | retval = -EBUSY; | |
1747 | } else if(prio == V4L2_PRIORITY_RECORD && | |
1748 | prio != fh->prio && | |
1749 | v4l2_prio_max(&cam->prio) == V4L2_PRIORITY_RECORD) { | |
1750 | /* Only one program can record at a time */ | |
1751 | retval = -EBUSY; | |
1752 | } else { | |
1753 | retval = v4l2_prio_change(&cam->prio, &fh->prio, prio); | |
1754 | } | |
1755 | break; | |
1756 | } | |
1757 | ||
1758 | case VIDIOC_REQBUFS: | |
1759 | retval = ioctl_reqbufs(arg,cam); | |
1760 | break; | |
1761 | case VIDIOC_QUERYBUF: | |
1762 | retval = ioctl_querybuf(arg,cam); | |
1763 | break; | |
1764 | case VIDIOC_QBUF: | |
1765 | retval = ioctl_qbuf(arg,cam); | |
1766 | break; | |
1767 | case VIDIOC_DQBUF: | |
1768 | retval = ioctl_dqbuf(arg,cam,file); | |
1769 | break; | |
1770 | case VIDIOC_STREAMON: | |
1771 | { | |
1772 | int type; | |
1773 | DBG("VIDIOC_STREAMON, streaming=%d\n", cam->streaming); | |
1774 | type = *(int*)arg; | |
1775 | if(!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1776 | retval = -EINVAL; | |
1777 | ||
1778 | if(!cam->streaming) { | |
1779 | retval = cpia2_usb_stream_start(cam, | |
1780 | cam->params.camera_state.stream_mode); | |
1781 | } else { | |
1782 | retval = -EINVAL; | |
1783 | } | |
1784 | ||
1785 | break; | |
1786 | } | |
1787 | case VIDIOC_STREAMOFF: | |
1788 | { | |
1789 | int type; | |
1790 | DBG("VIDIOC_STREAMOFF, streaming=%d\n", cam->streaming); | |
1791 | type = *(int*)arg; | |
1792 | if(!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1793 | retval = -EINVAL; | |
1794 | ||
1795 | if(cam->streaming) { | |
1796 | retval = cpia2_usb_stream_stop(cam); | |
1797 | } else { | |
1798 | retval = -EINVAL; | |
1799 | } | |
1800 | ||
1801 | break; | |
1802 | } | |
1803 | ||
1804 | case VIDIOC_ENUMOUTPUT: | |
1805 | case VIDIOC_G_OUTPUT: | |
1806 | case VIDIOC_S_OUTPUT: | |
1807 | case VIDIOC_G_MODULATOR: | |
1808 | case VIDIOC_S_MODULATOR: | |
1809 | ||
1810 | case VIDIOC_ENUMAUDIO: | |
1811 | case VIDIOC_G_AUDIO: | |
1812 | case VIDIOC_S_AUDIO: | |
1813 | ||
1814 | case VIDIOC_ENUMAUDOUT: | |
1815 | case VIDIOC_G_AUDOUT: | |
1816 | case VIDIOC_S_AUDOUT: | |
1817 | ||
1818 | case VIDIOC_ENUMSTD: | |
1819 | case VIDIOC_QUERYSTD: | |
1820 | case VIDIOC_G_STD: | |
1821 | case VIDIOC_S_STD: | |
1822 | ||
1823 | case VIDIOC_G_TUNER: | |
1824 | case VIDIOC_S_TUNER: | |
1825 | case VIDIOC_G_FREQUENCY: | |
1826 | case VIDIOC_S_FREQUENCY: | |
1827 | ||
1828 | case VIDIOC_OVERLAY: | |
1829 | case VIDIOC_G_FBUF: | |
1830 | case VIDIOC_S_FBUF: | |
1831 | ||
1832 | case VIDIOC_G_PARM: | |
1833 | case VIDIOC_S_PARM: | |
1834 | retval = -EINVAL; | |
1835 | break; | |
1836 | default: | |
1837 | retval = -ENOIOCTLCMD; | |
1838 | break; | |
1839 | } | |
1840 | ||
2ae15191 | 1841 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1842 | return retval; |
1843 | } | |
1844 | ||
1845 | static int cpia2_ioctl(struct inode *inode, struct file *file, | |
1846 | unsigned int ioctl_nr, unsigned long iarg) | |
1847 | { | |
1848 | return video_usercopy(inode, file, ioctl_nr, iarg, cpia2_do_ioctl); | |
1849 | } | |
1850 | ||
1851 | /****************************************************************************** | |
1852 | * | |
1853 | * cpia2_mmap | |
1854 | * | |
1855 | *****************************************************************************/ | |
1856 | static int cpia2_mmap(struct file *file, struct vm_area_struct *area) | |
1857 | { | |
c170ecf4 | 1858 | struct camera_data *cam = video_drvdata(file); |
ab33d507 | 1859 | int retval; |
ab33d507 AC |
1860 | |
1861 | /* Priority check */ | |
1862 | struct cpia2_fh *fh = file->private_data; | |
1863 | if(fh->prio != V4L2_PRIORITY_RECORD) { | |
1864 | return -EBUSY; | |
1865 | } | |
1866 | ||
1867 | retval = cpia2_remap_buffer(cam, area); | |
1868 | ||
1869 | if(!retval) | |
1870 | fh->mmapped = 1; | |
1871 | return retval; | |
1872 | } | |
1873 | ||
1874 | /****************************************************************************** | |
1875 | * | |
1876 | * reset_camera_struct_v4l | |
1877 | * | |
1878 | * Sets all values to the defaults | |
1879 | *****************************************************************************/ | |
1880 | static void reset_camera_struct_v4l(struct camera_data *cam) | |
1881 | { | |
1882 | /*** | |
1883 | * Fill in the v4l structures. video_cap is filled in inside the VIDIOCCAP | |
1884 | * Ioctl. Here, just do the window and picture stucts. | |
1885 | ***/ | |
1886 | cam->vp.palette = (u16) VIDEO_PALETTE_RGB24; /* Is this right? */ | |
1887 | cam->vp.brightness = (u16) cam->params.color_params.brightness * 256; | |
1888 | cam->vp.colour = (u16) cam->params.color_params.saturation * 256; | |
1889 | cam->vp.contrast = (u16) cam->params.color_params.contrast * 256; | |
1890 | ||
1891 | cam->vw.x = 0; | |
1892 | cam->vw.y = 0; | |
1893 | cam->vw.width = cam->params.roi.width; | |
1894 | cam->vw.height = cam->params.roi.height; | |
1895 | cam->vw.flags = 0; | |
1896 | cam->vw.clipcount = 0; | |
1897 | ||
1898 | cam->frame_size = buffer_size; | |
1899 | cam->num_frames = num_buffers; | |
1900 | ||
1901 | /* FlickerModes */ | |
1902 | cam->params.flicker_control.flicker_mode_req = flicker_mode; | |
1903 | cam->params.flicker_control.mains_frequency = flicker_freq; | |
1904 | ||
1905 | /* streamMode */ | |
1906 | cam->params.camera_state.stream_mode = alternate; | |
1907 | ||
1908 | cam->pixelformat = V4L2_PIX_FMT_JPEG; | |
1909 | v4l2_prio_init(&cam->prio); | |
1910 | return; | |
1911 | } | |
1912 | ||
1913 | /*** | |
1914 | * The v4l video device structure initialized for this device | |
1915 | ***/ | |
fa027c2a | 1916 | static const struct file_operations fops_template = { |
2ae15191 AC |
1917 | .owner = THIS_MODULE, |
1918 | .open = cpia2_open, | |
1919 | .release = cpia2_close, | |
1920 | .read = cpia2_v4l_read, | |
1921 | .poll = cpia2_v4l_poll, | |
1922 | .ioctl = cpia2_ioctl, | |
1923 | .llseek = no_llseek, | |
078ff795 | 1924 | #ifdef CONFIG_COMPAT |
2ae15191 | 1925 | .compat_ioctl = v4l_compat_ioctl32, |
078ff795 | 1926 | #endif |
2ae15191 | 1927 | .mmap = cpia2_mmap, |
ab33d507 AC |
1928 | }; |
1929 | ||
1930 | static struct video_device cpia2_template = { | |
1931 | /* I could not find any place for the old .initialize initializer?? */ | |
ab33d507 | 1932 | .name= "CPiA2 Camera", |
ab33d507 AC |
1933 | .minor= -1, |
1934 | .fops= &fops_template, | |
1935 | .release= video_device_release, | |
1936 | }; | |
1937 | ||
1938 | /****************************************************************************** | |
1939 | * | |
1940 | * cpia2_register_camera | |
1941 | * | |
1942 | *****************************************************************************/ | |
1943 | int cpia2_register_camera(struct camera_data *cam) | |
1944 | { | |
1945 | cam->vdev = video_device_alloc(); | |
1946 | if(!cam->vdev) | |
1947 | return -ENOMEM; | |
1948 | ||
1949 | memcpy(cam->vdev, &cpia2_template, sizeof(cpia2_template)); | |
1950 | video_set_drvdata(cam->vdev, cam); | |
1951 | ||
1952 | reset_camera_struct_v4l(cam); | |
1953 | ||
1954 | /* register v4l device */ | |
dc60de33 | 1955 | if (video_register_device(cam->vdev, VFL_TYPE_GRABBER, video_nr) < 0) { |
ab33d507 AC |
1956 | ERR("video_register_device failed\n"); |
1957 | video_device_release(cam->vdev); | |
1958 | return -ENODEV; | |
1959 | } | |
1960 | ||
1961 | return 0; | |
1962 | } | |
1963 | ||
1964 | /****************************************************************************** | |
1965 | * | |
1966 | * cpia2_unregister_camera | |
1967 | * | |
1968 | *****************************************************************************/ | |
1969 | void cpia2_unregister_camera(struct camera_data *cam) | |
1970 | { | |
1971 | if (!cam->open_count) { | |
1972 | video_unregister_device(cam->vdev); | |
1973 | } else { | |
1974 | LOG("/dev/video%d removed while open, " | |
1975 | "deferring video_unregister_device\n", | |
c6330fb8 | 1976 | cam->vdev->num); |
ab33d507 AC |
1977 | } |
1978 | } | |
1979 | ||
1980 | /****************************************************************************** | |
1981 | * | |
1982 | * check_parameters | |
1983 | * | |
1984 | * Make sure that all user-supplied parameters are sensible | |
1985 | *****************************************************************************/ | |
1986 | static void __init check_parameters(void) | |
1987 | { | |
1988 | if(buffer_size < PAGE_SIZE) { | |
1989 | buffer_size = PAGE_SIZE; | |
1990 | LOG("buffer_size too small, setting to %d\n", buffer_size); | |
1991 | } else if(buffer_size > 1024*1024) { | |
1992 | /* arbitrary upper limiit */ | |
1993 | buffer_size = 1024*1024; | |
1994 | LOG("buffer_size ridiculously large, setting to %d\n", | |
1995 | buffer_size); | |
1996 | } else { | |
1997 | buffer_size += PAGE_SIZE-1; | |
1998 | buffer_size &= ~(PAGE_SIZE-1); | |
1999 | } | |
2000 | ||
2001 | if(num_buffers < 1) { | |
2002 | num_buffers = 1; | |
2003 | LOG("num_buffers too small, setting to %d\n", num_buffers); | |
2004 | } else if(num_buffers > VIDEO_MAX_FRAME) { | |
2005 | num_buffers = VIDEO_MAX_FRAME; | |
2006 | LOG("num_buffers too large, setting to %d\n", num_buffers); | |
2007 | } | |
2008 | ||
2009 | if(alternate < USBIF_ISO_1 || alternate > USBIF_ISO_6) { | |
2010 | alternate = DEFAULT_ALT; | |
2011 | LOG("alternate specified is invalid, using %d\n", alternate); | |
2012 | } | |
2013 | ||
2014 | if (flicker_mode != NEVER_FLICKER && flicker_mode != ANTI_FLICKER_ON) { | |
2015 | flicker_mode = NEVER_FLICKER; | |
2016 | LOG("Flicker mode specified is invalid, using %d\n", | |
2017 | flicker_mode); | |
2018 | } | |
2019 | ||
2020 | if (flicker_freq != FLICKER_50 && flicker_freq != FLICKER_60) { | |
2021 | flicker_freq = FLICKER_60; | |
2022 | LOG("Flicker mode specified is invalid, using %d\n", | |
2023 | flicker_freq); | |
2024 | } | |
2025 | ||
2026 | if(video_nr < -1 || video_nr > 64) { | |
2027 | video_nr = -1; | |
2028 | LOG("invalid video_nr specified, must be -1 to 64\n"); | |
2029 | } | |
2030 | ||
2031 | DBG("Using %d buffers, each %d bytes, alternate=%d\n", | |
2032 | num_buffers, buffer_size, alternate); | |
2033 | } | |
2034 | ||
2035 | /************ Module Stuff ***************/ | |
2036 | ||
2037 | ||
2038 | /****************************************************************************** | |
2039 | * | |
2040 | * cpia2_init/module_init | |
2041 | * | |
2042 | *****************************************************************************/ | |
8cbe84f3 | 2043 | static int __init cpia2_init(void) |
ab33d507 AC |
2044 | { |
2045 | LOG("%s v%d.%d.%d\n", | |
2046 | ABOUT, CPIA2_MAJ_VER, CPIA2_MIN_VER, CPIA2_PATCH_VER); | |
2047 | check_parameters(); | |
2048 | cpia2_usb_init(); | |
2049 | return 0; | |
2050 | } | |
2051 | ||
2052 | ||
2053 | /****************************************************************************** | |
2054 | * | |
2055 | * cpia2_exit/module_exit | |
2056 | * | |
2057 | *****************************************************************************/ | |
8cbe84f3 | 2058 | static void __exit cpia2_exit(void) |
ab33d507 AC |
2059 | { |
2060 | cpia2_usb_cleanup(); | |
2061 | schedule_timeout(2 * HZ); | |
2062 | } | |
2063 | ||
ab33d507 AC |
2064 | module_init(cpia2_init); |
2065 | module_exit(cpia2_exit); | |
2066 |