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1 | /**************************************************************************** |
2 | * | |
3 | * Filename: cpia2_v4l.c | |
4 | * | |
5 | * Copyright 2001, STMicrolectronics, Inc. | |
6 | * Contact: steve.miller@st.com | |
7 | * Copyright 2001,2005, Scott J. Bertin <scottbertin@yahoo.com> | |
8 | * | |
9 | * Description: | |
10 | * This is a USB driver for CPia2 based video cameras. | |
11 | * The infrastructure of this driver is based on the cpia usb driver by | |
12 | * Jochen Scharrlach and Johannes Erdfeldt. | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
27 | * | |
28 | * Stripped of 2.4 stuff ready for main kernel submit by | |
29 | * Alan Cox <alan@redhat.com> | |
30 | ****************************************************************************/ | |
31 | ||
32 | #include <linux/version.h> | |
33 | ||
34 | #include <linux/config.h> | |
35 | ||
36 | #include <linux/module.h> | |
37 | #include <linux/time.h> | |
38 | #include <linux/sched.h> | |
39 | #include <linux/slab.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/moduleparam.h> | |
42 | ||
43 | #include "cpia2.h" | |
44 | #include "cpia2dev.h" | |
45 | ||
46 | ||
47 | //#define _CPIA2_DEBUG_ | |
48 | ||
49 | #define MAKE_STRING_1(x) #x | |
50 | #define MAKE_STRING(x) MAKE_STRING_1(x) | |
51 | ||
52 | static int video_nr = -1; | |
53 | module_param(video_nr, int, 0); | |
54 | MODULE_PARM_DESC(video_nr,"video device to register (0=/dev/video0, etc)"); | |
55 | ||
56 | static int buffer_size = 68*1024; | |
57 | module_param(buffer_size, int, 0); | |
58 | MODULE_PARM_DESC(buffer_size, "Size for each frame buffer in bytes (default 68k)"); | |
59 | ||
60 | static int num_buffers = 3; | |
61 | module_param(num_buffers, int, 0); | |
62 | MODULE_PARM_DESC(num_buffers, "Number of frame buffers (1-" | |
63 | MAKE_STRING(VIDEO_MAX_FRAME) ", default 3)"); | |
64 | ||
65 | static int alternate = DEFAULT_ALT; | |
66 | module_param(alternate, int, 0); | |
67 | MODULE_PARM_DESC(alternate, "USB Alternate (" MAKE_STRING(USBIF_ISO_1) "-" | |
68 | MAKE_STRING(USBIF_ISO_6) ", default " | |
69 | MAKE_STRING(DEFAULT_ALT) ")"); | |
70 | ||
71 | static int flicker_freq = 60; | |
72 | module_param(flicker_freq, int, 0); | |
73 | MODULE_PARM_DESC(flicker_freq, "Flicker frequency (" MAKE_STRING(50) "or" | |
74 | MAKE_STRING(60) ", default " | |
75 | MAKE_STRING(60) ")"); | |
76 | ||
77 | static int flicker_mode = NEVER_FLICKER; | |
78 | module_param(flicker_mode, int, 0); | |
79 | MODULE_PARM_DESC(flicker_mode, | |
80 | "Flicker supression (" MAKE_STRING(NEVER_FLICKER) "or" | |
81 | MAKE_STRING(ANTI_FLICKER_ON) ", default " | |
82 | MAKE_STRING(NEVER_FLICKER) ")"); | |
83 | ||
84 | MODULE_AUTHOR("Steve Miller (STMicroelectronics) <steve.miller@st.com>"); | |
85 | MODULE_DESCRIPTION("V4L-driver for STMicroelectronics CPiA2 based cameras"); | |
86 | MODULE_SUPPORTED_DEVICE("video"); | |
87 | MODULE_LICENSE("GPL"); | |
88 | ||
89 | #define ABOUT "V4L-Driver for Vision CPiA2 based cameras" | |
90 | ||
91 | #ifndef VID_HARDWARE_CPIA2 | |
92 | #error "VID_HARDWARE_CPIA2 should have been defined in linux/videodev.h" | |
93 | #endif | |
94 | ||
95 | struct control_menu_info { | |
96 | int value; | |
97 | char name[32]; | |
98 | }; | |
99 | ||
100 | static struct control_menu_info framerate_controls[] = | |
101 | { | |
102 | { CPIA2_VP_FRAMERATE_6_25, "6.25 fps" }, | |
103 | { CPIA2_VP_FRAMERATE_7_5, "7.5 fps" }, | |
104 | { CPIA2_VP_FRAMERATE_12_5, "12.5 fps" }, | |
105 | { CPIA2_VP_FRAMERATE_15, "15 fps" }, | |
106 | { CPIA2_VP_FRAMERATE_25, "25 fps" }, | |
107 | { CPIA2_VP_FRAMERATE_30, "30 fps" }, | |
108 | }; | |
109 | #define NUM_FRAMERATE_CONTROLS (sizeof(framerate_controls)/sizeof(framerate_controls[0])) | |
110 | ||
111 | static struct control_menu_info flicker_controls[] = | |
112 | { | |
113 | { NEVER_FLICKER, "Off" }, | |
114 | { FLICKER_50, "50 Hz" }, | |
115 | { FLICKER_60, "60 Hz" }, | |
116 | }; | |
117 | #define NUM_FLICKER_CONTROLS (sizeof(flicker_controls)/sizeof(flicker_controls[0])) | |
118 | ||
119 | static struct control_menu_info lights_controls[] = | |
120 | { | |
121 | { 0, "Off" }, | |
122 | { 64, "Top" }, | |
123 | { 128, "Bottom" }, | |
124 | { 192, "Both" }, | |
125 | }; | |
126 | #define NUM_LIGHTS_CONTROLS (sizeof(lights_controls)/sizeof(lights_controls[0])) | |
127 | #define GPIO_LIGHTS_MASK 192 | |
128 | ||
129 | static struct v4l2_queryctrl controls[] = { | |
130 | { | |
131 | .id = V4L2_CID_BRIGHTNESS, | |
132 | .type = V4L2_CTRL_TYPE_INTEGER, | |
133 | .name = "Brightness", | |
134 | .minimum = 0, | |
135 | .maximum = 255, | |
136 | .step = 1, | |
137 | .default_value = DEFAULT_BRIGHTNESS, | |
138 | }, | |
139 | { | |
140 | .id = V4L2_CID_CONTRAST, | |
141 | .type = V4L2_CTRL_TYPE_INTEGER, | |
142 | .name = "Contrast", | |
143 | .minimum = 0, | |
144 | .maximum = 255, | |
145 | .step = 1, | |
146 | .default_value = DEFAULT_CONTRAST, | |
147 | }, | |
148 | { | |
149 | .id = V4L2_CID_SATURATION, | |
150 | .type = V4L2_CTRL_TYPE_INTEGER, | |
151 | .name = "Saturation", | |
152 | .minimum = 0, | |
153 | .maximum = 255, | |
154 | .step = 1, | |
155 | .default_value = DEFAULT_SATURATION, | |
156 | }, | |
157 | { | |
158 | .id = V4L2_CID_HFLIP, | |
159 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
160 | .name = "Mirror Horizontally", | |
161 | .minimum = 0, | |
162 | .maximum = 1, | |
163 | .step = 1, | |
164 | .default_value = 0, | |
165 | }, | |
166 | { | |
167 | .id = V4L2_CID_VFLIP, | |
168 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
169 | .name = "Flip Vertically", | |
170 | .minimum = 0, | |
171 | .maximum = 1, | |
172 | .step = 1, | |
173 | .default_value = 0, | |
174 | }, | |
175 | { | |
176 | .id = CPIA2_CID_TARGET_KB, | |
177 | .type = V4L2_CTRL_TYPE_INTEGER, | |
178 | .name = "Target KB", | |
179 | .minimum = 0, | |
180 | .maximum = 255, | |
181 | .step = 1, | |
182 | .default_value = DEFAULT_TARGET_KB, | |
183 | }, | |
184 | { | |
185 | .id = CPIA2_CID_GPIO, | |
186 | .type = V4L2_CTRL_TYPE_INTEGER, | |
187 | .name = "GPIO", | |
188 | .minimum = 0, | |
189 | .maximum = 255, | |
190 | .step = 1, | |
191 | .default_value = 0, | |
192 | }, | |
193 | { | |
194 | .id = CPIA2_CID_FLICKER_MODE, | |
195 | .type = V4L2_CTRL_TYPE_MENU, | |
196 | .name = "Flicker Reduction", | |
197 | .minimum = 0, | |
198 | .maximum = NUM_FLICKER_CONTROLS-1, | |
199 | .step = 1, | |
200 | .default_value = 0, | |
201 | }, | |
202 | { | |
203 | .id = CPIA2_CID_FRAMERATE, | |
204 | .type = V4L2_CTRL_TYPE_MENU, | |
205 | .name = "Framerate", | |
206 | .minimum = 0, | |
207 | .maximum = NUM_FRAMERATE_CONTROLS-1, | |
208 | .step = 1, | |
209 | .default_value = NUM_FRAMERATE_CONTROLS-1, | |
210 | }, | |
211 | { | |
212 | .id = CPIA2_CID_USB_ALT, | |
213 | .type = V4L2_CTRL_TYPE_INTEGER, | |
214 | .name = "USB Alternate", | |
215 | .minimum = USBIF_ISO_1, | |
216 | .maximum = USBIF_ISO_6, | |
217 | .step = 1, | |
218 | .default_value = DEFAULT_ALT, | |
219 | }, | |
220 | { | |
221 | .id = CPIA2_CID_LIGHTS, | |
222 | .type = V4L2_CTRL_TYPE_MENU, | |
223 | .name = "Lights", | |
224 | .minimum = 0, | |
225 | .maximum = NUM_LIGHTS_CONTROLS-1, | |
226 | .step = 1, | |
227 | .default_value = 0, | |
228 | }, | |
229 | { | |
230 | .id = CPIA2_CID_RESET_CAMERA, | |
231 | .type = V4L2_CTRL_TYPE_BUTTON, | |
232 | .name = "Reset Camera", | |
233 | .minimum = 0, | |
234 | .maximum = 0, | |
235 | .step = 0, | |
236 | .default_value = 0, | |
237 | }, | |
238 | }; | |
239 | #define NUM_CONTROLS (sizeof(controls)/sizeof(controls[0])) | |
240 | ||
241 | ||
242 | /****************************************************************************** | |
243 | * | |
244 | * cpia2_open | |
245 | * | |
246 | *****************************************************************************/ | |
247 | static int cpia2_open(struct inode *inode, struct file *file) | |
248 | { | |
249 | struct video_device *dev = video_devdata(file); | |
250 | struct camera_data *cam = video_get_drvdata(dev); | |
251 | int retval = 0; | |
252 | ||
253 | if (!cam) { | |
254 | ERR("Internal error, camera_data not found!\n"); | |
255 | return -ENODEV; | |
256 | } | |
257 | ||
2ae15191 | 258 | if(mutex_lock_interruptible(&cam->busy_lock)) |
ab33d507 AC |
259 | return -ERESTARTSYS; |
260 | ||
261 | if(!cam->present) { | |
262 | retval = -ENODEV; | |
263 | goto err_return; | |
264 | } | |
265 | ||
266 | if (cam->open_count > 0) { | |
267 | goto skip_init; | |
268 | } | |
269 | ||
270 | if (cpia2_allocate_buffers(cam)) { | |
271 | retval = -ENOMEM; | |
272 | goto err_return; | |
273 | } | |
274 | ||
275 | /* reset the camera */ | |
276 | if (cpia2_reset_camera(cam) < 0) { | |
277 | retval = -EIO; | |
278 | goto err_return; | |
279 | } | |
280 | ||
281 | cam->APP_len = 0; | |
282 | cam->COM_len = 0; | |
283 | ||
284 | skip_init: | |
285 | { | |
286 | struct cpia2_fh *fh = kmalloc(sizeof(*fh),GFP_KERNEL); | |
287 | if(!fh) { | |
288 | retval = -ENOMEM; | |
289 | goto err_return; | |
290 | } | |
291 | file->private_data = fh; | |
292 | fh->prio = V4L2_PRIORITY_UNSET; | |
293 | v4l2_prio_open(&cam->prio, &fh->prio); | |
294 | fh->mmapped = 0; | |
295 | } | |
296 | ||
297 | ++cam->open_count; | |
298 | ||
299 | cpia2_dbg_dump_registers(cam); | |
300 | ||
301 | err_return: | |
2ae15191 | 302 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
303 | return retval; |
304 | } | |
305 | ||
306 | /****************************************************************************** | |
307 | * | |
308 | * cpia2_close | |
309 | * | |
310 | *****************************************************************************/ | |
311 | static int cpia2_close(struct inode *inode, struct file *file) | |
312 | { | |
313 | struct video_device *dev = video_devdata(file); | |
314 | struct camera_data *cam = video_get_drvdata(dev); | |
315 | struct cpia2_fh *fh = file->private_data; | |
316 | ||
2ae15191 | 317 | mutex_lock(&cam->busy_lock); |
ab33d507 AC |
318 | |
319 | if (cam->present && | |
320 | (cam->open_count == 1 | |
321 | || fh->prio == V4L2_PRIORITY_RECORD | |
322 | )) { | |
323 | cpia2_usb_stream_stop(cam); | |
324 | ||
325 | if(cam->open_count == 1) { | |
326 | /* save camera state for later open */ | |
327 | cpia2_save_camera_state(cam); | |
328 | ||
329 | cpia2_set_low_power(cam); | |
330 | cpia2_free_buffers(cam); | |
331 | } | |
332 | } | |
333 | ||
334 | { | |
335 | if(fh->mmapped) | |
336 | cam->mmapped = 0; | |
337 | v4l2_prio_close(&cam->prio,&fh->prio); | |
338 | file->private_data = NULL; | |
339 | kfree(fh); | |
340 | } | |
341 | ||
342 | if (--cam->open_count == 0) { | |
343 | cpia2_free_buffers(cam); | |
344 | if (!cam->present) { | |
345 | video_unregister_device(dev); | |
346 | kfree(cam); | |
347 | } | |
348 | } | |
349 | ||
2ae15191 | 350 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
351 | |
352 | return 0; | |
353 | } | |
354 | ||
355 | /****************************************************************************** | |
356 | * | |
357 | * cpia2_v4l_read | |
358 | * | |
359 | *****************************************************************************/ | |
360 | static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count, | |
361 | loff_t *off) | |
362 | { | |
363 | struct video_device *dev = video_devdata(file); | |
364 | struct camera_data *cam = video_get_drvdata(dev); | |
365 | int noblock = file->f_flags&O_NONBLOCK; | |
366 | ||
367 | struct cpia2_fh *fh = file->private_data; | |
368 | ||
369 | if(!cam) | |
370 | return -EINVAL; | |
371 | ||
372 | /* Priority check */ | |
373 | if(fh->prio != V4L2_PRIORITY_RECORD) { | |
374 | return -EBUSY; | |
375 | } | |
376 | ||
377 | return cpia2_read(cam, buf, count, noblock); | |
378 | } | |
379 | ||
380 | ||
381 | /****************************************************************************** | |
382 | * | |
383 | * cpia2_v4l_poll | |
384 | * | |
385 | *****************************************************************************/ | |
386 | static unsigned int cpia2_v4l_poll(struct file *filp, struct poll_table_struct *wait) | |
387 | { | |
388 | struct video_device *dev = video_devdata(filp); | |
389 | struct camera_data *cam = video_get_drvdata(dev); | |
390 | ||
391 | struct cpia2_fh *fh = filp->private_data; | |
392 | ||
393 | if(!cam) | |
394 | return POLLERR; | |
395 | ||
396 | /* Priority check */ | |
397 | if(fh->prio != V4L2_PRIORITY_RECORD) { | |
398 | return POLLERR; | |
399 | } | |
400 | ||
401 | return cpia2_poll(cam, filp, wait); | |
402 | } | |
403 | ||
404 | ||
405 | /****************************************************************************** | |
406 | * | |
407 | * ioctl_cap_query | |
408 | * | |
409 | *****************************************************************************/ | |
410 | static int ioctl_cap_query(void *arg, struct camera_data *cam) | |
411 | { | |
412 | struct video_capability *vc; | |
413 | int retval = 0; | |
414 | vc = arg; | |
415 | ||
416 | if (cam->params.pnp_id.product == 0x151) | |
417 | strcpy(vc->name, "QX5 Microscope"); | |
418 | else | |
419 | strcpy(vc->name, "CPiA2 Camera"); | |
420 | ||
421 | vc->type = VID_TYPE_CAPTURE | VID_TYPE_MJPEG_ENCODER; | |
422 | vc->channels = 1; | |
423 | vc->audios = 0; | |
424 | vc->minwidth = 176; /* VIDEOSIZE_QCIF */ | |
425 | vc->minheight = 144; | |
426 | switch (cam->params.version.sensor_flags) { | |
427 | case CPIA2_VP_SENSOR_FLAGS_500: | |
428 | vc->maxwidth = STV_IMAGE_VGA_COLS; | |
429 | vc->maxheight = STV_IMAGE_VGA_ROWS; | |
430 | break; | |
431 | case CPIA2_VP_SENSOR_FLAGS_410: | |
432 | vc->maxwidth = STV_IMAGE_CIF_COLS; | |
433 | vc->maxheight = STV_IMAGE_CIF_ROWS; | |
434 | break; | |
435 | default: | |
436 | return -EINVAL; | |
437 | } | |
438 | ||
439 | return retval; | |
440 | } | |
441 | ||
442 | /****************************************************************************** | |
443 | * | |
444 | * ioctl_get_channel | |
445 | * | |
446 | *****************************************************************************/ | |
447 | static int ioctl_get_channel(void *arg) | |
448 | { | |
449 | int retval = 0; | |
450 | struct video_channel *v; | |
451 | v = arg; | |
452 | ||
453 | if (v->channel != 0) | |
454 | return -EINVAL; | |
455 | ||
456 | v->channel = 0; | |
457 | strcpy(v->name, "Camera"); | |
458 | v->tuners = 0; | |
459 | v->flags = 0; | |
460 | v->type = VIDEO_TYPE_CAMERA; | |
461 | v->norm = 0; | |
462 | ||
463 | return retval; | |
464 | } | |
465 | ||
466 | /****************************************************************************** | |
467 | * | |
468 | * ioctl_set_channel | |
469 | * | |
470 | *****************************************************************************/ | |
471 | static int ioctl_set_channel(void *arg) | |
472 | { | |
473 | struct video_channel *v; | |
474 | int retval = 0; | |
475 | v = arg; | |
476 | ||
477 | if (retval == 0 && v->channel != 0) | |
478 | retval = -EINVAL; | |
479 | ||
480 | return retval; | |
481 | } | |
482 | ||
483 | /****************************************************************************** | |
484 | * | |
485 | * ioctl_set_image_prop | |
486 | * | |
487 | *****************************************************************************/ | |
488 | static int ioctl_set_image_prop(void *arg, struct camera_data *cam) | |
489 | { | |
490 | struct video_picture *vp; | |
491 | int retval = 0; | |
492 | vp = arg; | |
493 | ||
494 | /* brightness, color, contrast need no check 0-65535 */ | |
495 | memcpy(&cam->vp, vp, sizeof(*vp)); | |
496 | ||
497 | /* update cam->params.colorParams */ | |
498 | cam->params.color_params.brightness = vp->brightness / 256; | |
499 | cam->params.color_params.saturation = vp->colour / 256; | |
500 | cam->params.color_params.contrast = vp->contrast / 256; | |
501 | ||
502 | DBG("Requested params: bright 0x%X, sat 0x%X, contrast 0x%X\n", | |
503 | cam->params.color_params.brightness, | |
504 | cam->params.color_params.saturation, | |
505 | cam->params.color_params.contrast); | |
506 | ||
507 | cpia2_set_color_params(cam); | |
508 | ||
509 | return retval; | |
510 | } | |
511 | ||
512 | static int sync(struct camera_data *cam, int frame_nr) | |
513 | { | |
514 | struct framebuf *frame = &cam->buffers[frame_nr]; | |
515 | ||
516 | while (1) { | |
517 | if (frame->status == FRAME_READY) | |
518 | return 0; | |
519 | ||
520 | if (!cam->streaming) { | |
521 | frame->status = FRAME_READY; | |
522 | frame->length = 0; | |
523 | return 0; | |
524 | } | |
525 | ||
2ae15191 | 526 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
527 | wait_event_interruptible(cam->wq_stream, |
528 | !cam->streaming || | |
529 | frame->status == FRAME_READY); | |
2ae15191 | 530 | mutex_lock(&cam->busy_lock); |
ab33d507 AC |
531 | if (signal_pending(current)) |
532 | return -ERESTARTSYS; | |
533 | if(!cam->present) | |
534 | return -ENOTTY; | |
535 | } | |
536 | } | |
537 | ||
538 | /****************************************************************************** | |
539 | * | |
540 | * ioctl_set_window_size | |
541 | * | |
542 | *****************************************************************************/ | |
543 | static int ioctl_set_window_size(void *arg, struct camera_data *cam, | |
544 | struct cpia2_fh *fh) | |
545 | { | |
546 | /* copy_from_user, check validity, copy to internal structure */ | |
547 | struct video_window *vw; | |
548 | int frame, err; | |
549 | vw = arg; | |
550 | ||
551 | if (vw->clipcount != 0) /* clipping not supported */ | |
552 | return -EINVAL; | |
553 | ||
554 | if (vw->clips != NULL) /* clipping not supported */ | |
555 | return -EINVAL; | |
556 | ||
557 | /* Ensure that only this process can change the format. */ | |
558 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); | |
559 | if(err != 0) | |
560 | return err; | |
561 | ||
562 | cam->pixelformat = V4L2_PIX_FMT_JPEG; | |
563 | ||
564 | /* Be sure to supply the Huffman tables, this isn't MJPEG */ | |
565 | cam->params.compression.inhibit_htables = 0; | |
566 | ||
567 | /* we set the video window to something smaller or equal to what | |
568 | * is requested by the user??? | |
569 | */ | |
570 | DBG("Requested width = %d, height = %d\n", vw->width, vw->height); | |
571 | if (vw->width != cam->vw.width || vw->height != cam->vw.height) { | |
572 | cam->vw.width = vw->width; | |
573 | cam->vw.height = vw->height; | |
574 | cam->params.roi.width = vw->width; | |
575 | cam->params.roi.height = vw->height; | |
576 | cpia2_set_format(cam); | |
577 | } | |
578 | ||
579 | for (frame = 0; frame < cam->num_frames; ++frame) { | |
580 | if (cam->buffers[frame].status == FRAME_READING) | |
581 | if ((err = sync(cam, frame)) < 0) | |
582 | return err; | |
583 | ||
584 | cam->buffers[frame].status = FRAME_EMPTY; | |
585 | } | |
586 | ||
587 | return 0; | |
588 | } | |
589 | ||
590 | /****************************************************************************** | |
591 | * | |
592 | * ioctl_get_mbuf | |
593 | * | |
594 | *****************************************************************************/ | |
595 | static int ioctl_get_mbuf(void *arg, struct camera_data *cam) | |
596 | { | |
597 | struct video_mbuf *vm; | |
598 | int i; | |
599 | vm = arg; | |
600 | ||
601 | memset(vm, 0, sizeof(*vm)); | |
602 | vm->size = cam->frame_size*cam->num_frames; | |
603 | vm->frames = cam->num_frames; | |
604 | for (i = 0; i < cam->num_frames; i++) | |
605 | vm->offsets[i] = cam->frame_size * i; | |
606 | ||
607 | return 0; | |
608 | } | |
609 | ||
610 | /****************************************************************************** | |
611 | * | |
612 | * ioctl_mcapture | |
613 | * | |
614 | *****************************************************************************/ | |
615 | static int ioctl_mcapture(void *arg, struct camera_data *cam, | |
616 | struct cpia2_fh *fh) | |
617 | { | |
618 | struct video_mmap *vm; | |
619 | int video_size, err; | |
620 | vm = arg; | |
621 | ||
622 | if (vm->frame < 0 || vm->frame >= cam->num_frames) | |
623 | return -EINVAL; | |
624 | ||
625 | /* set video size */ | |
626 | video_size = cpia2_match_video_size(vm->width, vm->height); | |
627 | if (cam->video_size < 0) { | |
628 | return -EINVAL; | |
629 | } | |
630 | ||
631 | /* Ensure that only this process can change the format. */ | |
632 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); | |
633 | if(err != 0) | |
634 | return err; | |
635 | ||
636 | if (video_size != cam->video_size) { | |
637 | cam->video_size = video_size; | |
638 | cam->params.roi.width = vm->width; | |
639 | cam->params.roi.height = vm->height; | |
640 | cpia2_set_format(cam); | |
641 | } | |
642 | ||
643 | if (cam->buffers[vm->frame].status == FRAME_READING) | |
644 | if ((err=sync(cam, vm->frame)) < 0) | |
645 | return err; | |
646 | ||
647 | cam->buffers[vm->frame].status = FRAME_EMPTY; | |
648 | ||
649 | return cpia2_usb_stream_start(cam,cam->params.camera_state.stream_mode); | |
650 | } | |
651 | ||
652 | /****************************************************************************** | |
653 | * | |
654 | * ioctl_sync | |
655 | * | |
656 | *****************************************************************************/ | |
657 | static int ioctl_sync(void *arg, struct camera_data *cam) | |
658 | { | |
659 | int frame; | |
660 | ||
661 | frame = *(int*)arg; | |
662 | ||
663 | if (frame < 0 || frame >= cam->num_frames) | |
664 | return -EINVAL; | |
665 | ||
666 | return sync(cam, frame); | |
667 | } | |
668 | ||
669 | ||
670 | /****************************************************************************** | |
671 | * | |
672 | * ioctl_set_gpio | |
673 | * | |
674 | *****************************************************************************/ | |
675 | ||
676 | static int ioctl_set_gpio(void *arg, struct camera_data *cam) | |
677 | { | |
678 | __u32 gpio_val; | |
679 | ||
680 | gpio_val = *(__u32*) arg; | |
681 | ||
682 | if (gpio_val &~ 0xFFU) | |
683 | return -EINVAL; | |
684 | ||
685 | return cpia2_set_gpio(cam, (unsigned char)gpio_val); | |
686 | } | |
687 | ||
688 | /****************************************************************************** | |
689 | * | |
690 | * ioctl_querycap | |
691 | * | |
692 | * V4L2 device capabilities | |
693 | * | |
694 | *****************************************************************************/ | |
695 | ||
696 | static int ioctl_querycap(void *arg, struct camera_data *cam) | |
697 | { | |
698 | struct v4l2_capability *vc = arg; | |
699 | ||
700 | memset(vc, 0, sizeof(*vc)); | |
701 | strcpy(vc->driver, "cpia2"); | |
702 | ||
703 | if (cam->params.pnp_id.product == 0x151) | |
704 | strcpy(vc->card, "QX5 Microscope"); | |
705 | else | |
706 | strcpy(vc->card, "CPiA2 Camera"); | |
707 | switch (cam->params.pnp_id.device_type) { | |
708 | case DEVICE_STV_672: | |
709 | strcat(vc->card, " (672/"); | |
710 | break; | |
711 | case DEVICE_STV_676: | |
712 | strcat(vc->card, " (676/"); | |
713 | break; | |
714 | default: | |
715 | strcat(vc->card, " (???/"); | |
716 | break; | |
717 | } | |
718 | switch (cam->params.version.sensor_flags) { | |
719 | case CPIA2_VP_SENSOR_FLAGS_404: | |
720 | strcat(vc->card, "404)"); | |
721 | break; | |
722 | case CPIA2_VP_SENSOR_FLAGS_407: | |
723 | strcat(vc->card, "407)"); | |
724 | break; | |
725 | case CPIA2_VP_SENSOR_FLAGS_409: | |
726 | strcat(vc->card, "409)"); | |
727 | break; | |
728 | case CPIA2_VP_SENSOR_FLAGS_410: | |
729 | strcat(vc->card, "410)"); | |
730 | break; | |
731 | case CPIA2_VP_SENSOR_FLAGS_500: | |
732 | strcat(vc->card, "500)"); | |
733 | break; | |
734 | default: | |
735 | strcat(vc->card, "???)"); | |
736 | break; | |
737 | } | |
738 | ||
739 | if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) <0) | |
740 | memset(vc->bus_info,0, sizeof(vc->bus_info)); | |
741 | ||
742 | vc->version = KERNEL_VERSION(CPIA2_MAJ_VER, CPIA2_MIN_VER, | |
743 | CPIA2_PATCH_VER); | |
744 | ||
745 | vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | | |
746 | V4L2_CAP_READWRITE | | |
747 | V4L2_CAP_STREAMING; | |
748 | ||
749 | return 0; | |
750 | } | |
751 | ||
752 | /****************************************************************************** | |
753 | * | |
754 | * ioctl_input | |
755 | * | |
756 | * V4L2 input get/set/enumerate | |
757 | * | |
758 | *****************************************************************************/ | |
759 | ||
760 | static int ioctl_input(unsigned int ioclt_nr,void *arg,struct camera_data *cam) | |
761 | { | |
762 | struct v4l2_input *i = arg; | |
763 | ||
764 | if(ioclt_nr != VIDIOC_G_INPUT) { | |
765 | if (i->index != 0) | |
766 | return -EINVAL; | |
767 | } | |
768 | ||
769 | memset(i, 0, sizeof(*i)); | |
770 | strcpy(i->name, "Camera"); | |
771 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
772 | ||
773 | return 0; | |
774 | } | |
775 | ||
776 | /****************************************************************************** | |
777 | * | |
778 | * ioctl_enum_fmt | |
779 | * | |
780 | * V4L2 format enumerate | |
781 | * | |
782 | *****************************************************************************/ | |
783 | ||
784 | static int ioctl_enum_fmt(void *arg,struct camera_data *cam) | |
785 | { | |
786 | struct v4l2_fmtdesc *f = arg; | |
787 | int index = f->index; | |
788 | ||
789 | if (index < 0 || index > 1) | |
790 | return -EINVAL; | |
791 | ||
792 | memset(f, 0, sizeof(*f)); | |
793 | f->index = index; | |
794 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
795 | f->flags = V4L2_FMT_FLAG_COMPRESSED; | |
796 | switch(index) { | |
797 | case 0: | |
798 | strcpy(f->description, "MJPEG"); | |
799 | f->pixelformat = V4L2_PIX_FMT_MJPEG; | |
800 | break; | |
801 | case 1: | |
802 | strcpy(f->description, "JPEG"); | |
803 | f->pixelformat = V4L2_PIX_FMT_JPEG; | |
804 | break; | |
805 | default: | |
806 | return -EINVAL; | |
807 | } | |
808 | ||
809 | return 0; | |
810 | } | |
811 | ||
812 | /****************************************************************************** | |
813 | * | |
814 | * ioctl_try_fmt | |
815 | * | |
816 | * V4L2 format try | |
817 | * | |
818 | *****************************************************************************/ | |
819 | ||
820 | static int ioctl_try_fmt(void *arg,struct camera_data *cam) | |
821 | { | |
822 | struct v4l2_format *f = arg; | |
823 | ||
824 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
825 | return -EINVAL; | |
826 | ||
827 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG && | |
828 | f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) | |
829 | return -EINVAL; | |
830 | ||
831 | f->fmt.pix.field = V4L2_FIELD_NONE; | |
832 | f->fmt.pix.bytesperline = 0; | |
833 | f->fmt.pix.sizeimage = cam->frame_size; | |
834 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; | |
835 | f->fmt.pix.priv = 0; | |
836 | ||
837 | switch (cpia2_match_video_size(f->fmt.pix.width, f->fmt.pix.height)) { | |
838 | case VIDEOSIZE_VGA: | |
839 | f->fmt.pix.width = 640; | |
840 | f->fmt.pix.height = 480; | |
841 | break; | |
842 | case VIDEOSIZE_CIF: | |
843 | f->fmt.pix.width = 352; | |
844 | f->fmt.pix.height = 288; | |
845 | break; | |
846 | case VIDEOSIZE_QVGA: | |
847 | f->fmt.pix.width = 320; | |
848 | f->fmt.pix.height = 240; | |
849 | break; | |
850 | case VIDEOSIZE_288_216: | |
851 | f->fmt.pix.width = 288; | |
852 | f->fmt.pix.height = 216; | |
853 | break; | |
854 | case VIDEOSIZE_256_192: | |
855 | f->fmt.pix.width = 256; | |
856 | f->fmt.pix.height = 192; | |
857 | break; | |
858 | case VIDEOSIZE_224_168: | |
859 | f->fmt.pix.width = 224; | |
860 | f->fmt.pix.height = 168; | |
861 | break; | |
862 | case VIDEOSIZE_192_144: | |
863 | f->fmt.pix.width = 192; | |
864 | f->fmt.pix.height = 144; | |
865 | break; | |
866 | case VIDEOSIZE_QCIF: | |
867 | default: | |
868 | f->fmt.pix.width = 176; | |
869 | f->fmt.pix.height = 144; | |
870 | break; | |
871 | } | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
876 | /****************************************************************************** | |
877 | * | |
878 | * ioctl_set_fmt | |
879 | * | |
880 | * V4L2 format set | |
881 | * | |
882 | *****************************************************************************/ | |
883 | ||
884 | static int ioctl_set_fmt(void *arg,struct camera_data *cam, struct cpia2_fh *fh) | |
885 | { | |
886 | struct v4l2_format *f = arg; | |
887 | int err, frame; | |
888 | ||
889 | err = ioctl_try_fmt(arg, cam); | |
890 | if(err != 0) | |
891 | return err; | |
892 | ||
893 | /* Ensure that only this process can change the format. */ | |
894 | err = v4l2_prio_change(&cam->prio, &fh->prio, V4L2_PRIORITY_RECORD); | |
895 | if(err != 0) { | |
896 | return err; | |
897 | } | |
898 | ||
899 | cam->pixelformat = f->fmt.pix.pixelformat; | |
900 | ||
901 | /* NOTE: This should be set to 1 for MJPEG, but some apps don't handle | |
902 | * the missing Huffman table properly. */ | |
903 | cam->params.compression.inhibit_htables = 0; | |
904 | /*f->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG;*/ | |
905 | ||
906 | /* we set the video window to something smaller or equal to what | |
907 | * is requested by the user??? | |
908 | */ | |
909 | DBG("Requested width = %d, height = %d\n", | |
910 | f->fmt.pix.width, f->fmt.pix.height); | |
911 | if (f->fmt.pix.width != cam->vw.width || | |
912 | f->fmt.pix.height != cam->vw.height) { | |
913 | cam->vw.width = f->fmt.pix.width; | |
914 | cam->vw.height = f->fmt.pix.height; | |
915 | cam->params.roi.width = f->fmt.pix.width; | |
916 | cam->params.roi.height = f->fmt.pix.height; | |
917 | cpia2_set_format(cam); | |
918 | } | |
919 | ||
920 | for (frame = 0; frame < cam->num_frames; ++frame) { | |
921 | if (cam->buffers[frame].status == FRAME_READING) | |
922 | if ((err = sync(cam, frame)) < 0) | |
923 | return err; | |
924 | ||
925 | cam->buffers[frame].status = FRAME_EMPTY; | |
926 | } | |
927 | ||
928 | return 0; | |
929 | } | |
930 | ||
931 | /****************************************************************************** | |
932 | * | |
933 | * ioctl_get_fmt | |
934 | * | |
935 | * V4L2 format get | |
936 | * | |
937 | *****************************************************************************/ | |
938 | ||
939 | static int ioctl_get_fmt(void *arg,struct camera_data *cam) | |
940 | { | |
941 | struct v4l2_format *f = arg; | |
942 | ||
943 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
944 | return -EINVAL; | |
945 | ||
946 | f->fmt.pix.width = cam->vw.width; | |
947 | f->fmt.pix.height = cam->vw.height; | |
948 | f->fmt.pix.pixelformat = cam->pixelformat; | |
949 | f->fmt.pix.field = V4L2_FIELD_NONE; | |
950 | f->fmt.pix.bytesperline = 0; | |
951 | f->fmt.pix.sizeimage = cam->frame_size; | |
952 | f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; | |
953 | f->fmt.pix.priv = 0; | |
954 | ||
955 | return 0; | |
956 | } | |
957 | ||
958 | /****************************************************************************** | |
959 | * | |
960 | * ioctl_cropcap | |
961 | * | |
962 | * V4L2 query cropping capabilities | |
963 | * NOTE: cropping is currently disabled | |
964 | * | |
965 | *****************************************************************************/ | |
966 | ||
967 | static int ioctl_cropcap(void *arg,struct camera_data *cam) | |
968 | { | |
969 | struct v4l2_cropcap *c = arg; | |
970 | ||
971 | if (c->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
972 | return -EINVAL; | |
973 | ||
974 | c->bounds.left = 0; | |
975 | c->bounds.top = 0; | |
976 | c->bounds.width = cam->vw.width; | |
977 | c->bounds.height = cam->vw.height; | |
978 | c->defrect.left = 0; | |
979 | c->defrect.top = 0; | |
980 | c->defrect.width = cam->vw.width; | |
981 | c->defrect.height = cam->vw.height; | |
982 | c->pixelaspect.numerator = 1; | |
983 | c->pixelaspect.denominator = 1; | |
984 | ||
985 | return 0; | |
986 | } | |
987 | ||
988 | /****************************************************************************** | |
989 | * | |
990 | * ioctl_queryctrl | |
991 | * | |
992 | * V4L2 query possible control variables | |
993 | * | |
994 | *****************************************************************************/ | |
995 | ||
996 | static int ioctl_queryctrl(void *arg,struct camera_data *cam) | |
997 | { | |
998 | struct v4l2_queryctrl *c = arg; | |
999 | int i; | |
1000 | ||
1001 | for(i=0; i<NUM_CONTROLS; ++i) { | |
1002 | if(c->id == controls[i].id) { | |
1003 | memcpy(c, controls+i, sizeof(*c)); | |
1004 | break; | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | if(i == NUM_CONTROLS) | |
1009 | return -EINVAL; | |
1010 | ||
1011 | /* Some devices have additional limitations */ | |
1012 | switch(c->id) { | |
1013 | case V4L2_CID_BRIGHTNESS: | |
1014 | /*** | |
1015 | * Don't let the register be set to zero - bug in VP4 | |
1016 | * flash of full brightness | |
1017 | ***/ | |
1018 | if (cam->params.pnp_id.device_type == DEVICE_STV_672) | |
1019 | c->minimum = 1; | |
1020 | break; | |
1021 | case V4L2_CID_VFLIP: | |
1022 | // VP5 Only | |
1023 | if(cam->params.pnp_id.device_type == DEVICE_STV_672) | |
1024 | c->flags |= V4L2_CTRL_FLAG_DISABLED; | |
1025 | break; | |
1026 | case CPIA2_CID_FRAMERATE: | |
1027 | if(cam->params.pnp_id.device_type == DEVICE_STV_672 && | |
1028 | cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ | |
1029 | // Maximum 15fps | |
1030 | int i; | |
1031 | for(i=0; i<c->maximum; ++i) { | |
1032 | if(framerate_controls[i].value == | |
1033 | CPIA2_VP_FRAMERATE_15) { | |
1034 | c->maximum = i; | |
1035 | c->default_value = i; | |
1036 | } | |
1037 | } | |
1038 | } | |
1039 | break; | |
1040 | case CPIA2_CID_FLICKER_MODE: | |
1041 | // Flicker control only valid for 672. | |
1042 | if(cam->params.pnp_id.device_type != DEVICE_STV_672) | |
1043 | c->flags |= V4L2_CTRL_FLAG_DISABLED; | |
1044 | break; | |
1045 | case CPIA2_CID_LIGHTS: | |
1046 | // Light control only valid for the QX5 Microscope. | |
1047 | if(cam->params.pnp_id.product != 0x151) | |
1048 | c->flags |= V4L2_CTRL_FLAG_DISABLED; | |
1049 | break; | |
1050 | default: | |
1051 | break; | |
1052 | } | |
1053 | ||
1054 | return 0; | |
1055 | } | |
1056 | ||
1057 | /****************************************************************************** | |
1058 | * | |
1059 | * ioctl_querymenu | |
1060 | * | |
1061 | * V4L2 query possible control variables | |
1062 | * | |
1063 | *****************************************************************************/ | |
1064 | ||
1065 | static int ioctl_querymenu(void *arg,struct camera_data *cam) | |
1066 | { | |
1067 | struct v4l2_querymenu *m = arg; | |
1068 | ||
1069 | memset(m->name, 0, sizeof(m->name)); | |
1070 | m->reserved = 0; | |
1071 | ||
1072 | switch(m->id) { | |
1073 | case CPIA2_CID_FLICKER_MODE: | |
1074 | if(m->index < 0 || m->index >= NUM_FLICKER_CONTROLS) | |
1075 | return -EINVAL; | |
1076 | ||
1077 | strcpy(m->name, flicker_controls[m->index].name); | |
1078 | break; | |
1079 | case CPIA2_CID_FRAMERATE: | |
1080 | { | |
1081 | int maximum = NUM_FRAMERATE_CONTROLS - 1; | |
1082 | if(cam->params.pnp_id.device_type == DEVICE_STV_672 && | |
1083 | cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){ | |
1084 | // Maximum 15fps | |
1085 | int i; | |
1086 | for(i=0; i<maximum; ++i) { | |
1087 | if(framerate_controls[i].value == | |
1088 | CPIA2_VP_FRAMERATE_15) | |
1089 | maximum = i; | |
1090 | } | |
1091 | } | |
1092 | if(m->index < 0 || m->index > maximum) | |
1093 | return -EINVAL; | |
1094 | ||
1095 | strcpy(m->name, framerate_controls[m->index].name); | |
1096 | break; | |
1097 | } | |
1098 | case CPIA2_CID_LIGHTS: | |
1099 | if(m->index < 0 || m->index >= NUM_LIGHTS_CONTROLS) | |
1100 | return -EINVAL; | |
1101 | ||
1102 | strcpy(m->name, lights_controls[m->index].name); | |
1103 | break; | |
1104 | default: | |
1105 | return -EINVAL; | |
1106 | } | |
1107 | ||
1108 | return 0; | |
1109 | } | |
1110 | ||
1111 | /****************************************************************************** | |
1112 | * | |
1113 | * ioctl_g_ctrl | |
1114 | * | |
1115 | * V4L2 get the value of a control variable | |
1116 | * | |
1117 | *****************************************************************************/ | |
1118 | ||
1119 | static int ioctl_g_ctrl(void *arg,struct camera_data *cam) | |
1120 | { | |
1121 | struct v4l2_control *c = arg; | |
1122 | ||
1123 | switch(c->id) { | |
1124 | case V4L2_CID_BRIGHTNESS: | |
1125 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_BRIGHTNESS, | |
1126 | TRANSFER_READ, 0); | |
1127 | c->value = cam->params.color_params.brightness; | |
1128 | break; | |
1129 | case V4L2_CID_CONTRAST: | |
1130 | cpia2_do_command(cam, CPIA2_CMD_GET_CONTRAST, | |
1131 | TRANSFER_READ, 0); | |
1132 | c->value = cam->params.color_params.contrast; | |
1133 | break; | |
1134 | case V4L2_CID_SATURATION: | |
1135 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_SATURATION, | |
1136 | TRANSFER_READ, 0); | |
1137 | c->value = cam->params.color_params.saturation; | |
1138 | break; | |
1139 | case V4L2_CID_HFLIP: | |
1140 | cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, | |
1141 | TRANSFER_READ, 0); | |
1142 | c->value = (cam->params.vp_params.user_effects & | |
1143 | CPIA2_VP_USER_EFFECTS_MIRROR) != 0; | |
1144 | break; | |
1145 | case V4L2_CID_VFLIP: | |
1146 | cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, | |
1147 | TRANSFER_READ, 0); | |
1148 | c->value = (cam->params.vp_params.user_effects & | |
1149 | CPIA2_VP_USER_EFFECTS_FLIP) != 0; | |
1150 | break; | |
1151 | case CPIA2_CID_TARGET_KB: | |
1152 | c->value = cam->params.vc_params.target_kb; | |
1153 | break; | |
1154 | case CPIA2_CID_GPIO: | |
1155 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, | |
1156 | TRANSFER_READ, 0); | |
1157 | c->value = cam->params.vp_params.gpio_data; | |
1158 | break; | |
1159 | case CPIA2_CID_FLICKER_MODE: | |
1160 | { | |
1161 | int i, mode; | |
1162 | cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES, | |
1163 | TRANSFER_READ, 0); | |
1164 | if(cam->params.flicker_control.cam_register & | |
1165 | CPIA2_VP_FLICKER_MODES_NEVER_FLICKER) { | |
1166 | mode = NEVER_FLICKER; | |
1167 | } else { | |
1168 | if(cam->params.flicker_control.cam_register & | |
1169 | CPIA2_VP_FLICKER_MODES_50HZ) { | |
657de3cd | 1170 | mode = FLICKER_50; |
ab33d507 | 1171 | } else { |
657de3cd | 1172 | mode = FLICKER_60; |
ab33d507 AC |
1173 | } |
1174 | } | |
1175 | for(i=0; i<NUM_FLICKER_CONTROLS; i++) { | |
1176 | if(flicker_controls[i].value == mode) { | |
1177 | c->value = i; | |
1178 | break; | |
1179 | } | |
1180 | } | |
1181 | if(i == NUM_FLICKER_CONTROLS) | |
1182 | return -EINVAL; | |
1183 | break; | |
1184 | } | |
1185 | case CPIA2_CID_FRAMERATE: | |
1186 | { | |
1187 | int maximum = NUM_FRAMERATE_CONTROLS - 1; | |
1188 | int i; | |
1189 | for(i=0; i<= maximum; i++) { | |
1190 | if(cam->params.vp_params.frame_rate == | |
1191 | framerate_controls[i].value) | |
1192 | break; | |
1193 | } | |
1194 | if(i > maximum) | |
1195 | return -EINVAL; | |
1196 | c->value = i; | |
1197 | break; | |
1198 | } | |
1199 | case CPIA2_CID_USB_ALT: | |
1200 | c->value = cam->params.camera_state.stream_mode; | |
1201 | break; | |
1202 | case CPIA2_CID_LIGHTS: | |
1203 | { | |
1204 | int i; | |
1205 | cpia2_do_command(cam, CPIA2_CMD_GET_VP_GPIO_DATA, | |
1206 | TRANSFER_READ, 0); | |
1207 | for(i=0; i<NUM_LIGHTS_CONTROLS; i++) { | |
1208 | if((cam->params.vp_params.gpio_data&GPIO_LIGHTS_MASK) == | |
1209 | lights_controls[i].value) { | |
1210 | break; | |
1211 | } | |
1212 | } | |
1213 | if(i == NUM_LIGHTS_CONTROLS) | |
1214 | return -EINVAL; | |
1215 | c->value = i; | |
1216 | break; | |
1217 | } | |
1218 | case CPIA2_CID_RESET_CAMERA: | |
1219 | return -EINVAL; | |
1220 | default: | |
1221 | return -EINVAL; | |
1222 | } | |
1223 | ||
1224 | DBG("Get control id:%d, value:%d\n", c->id, c->value); | |
1225 | ||
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | /****************************************************************************** | |
1230 | * | |
1231 | * ioctl_s_ctrl | |
1232 | * | |
1233 | * V4L2 set the value of a control variable | |
1234 | * | |
1235 | *****************************************************************************/ | |
1236 | ||
1237 | static int ioctl_s_ctrl(void *arg,struct camera_data *cam) | |
1238 | { | |
1239 | struct v4l2_control *c = arg; | |
1240 | int i; | |
1241 | int retval = 0; | |
1242 | ||
1243 | DBG("Set control id:%d, value:%d\n", c->id, c->value); | |
1244 | ||
1245 | /* Check that the value is in range */ | |
1246 | for(i=0; i<NUM_CONTROLS; i++) { | |
1247 | if(c->id == controls[i].id) { | |
1248 | if(c->value < controls[i].minimum || | |
1249 | c->value > controls[i].maximum) { | |
1250 | return -EINVAL; | |
1251 | } | |
1252 | break; | |
1253 | } | |
1254 | } | |
1255 | if(i == NUM_CONTROLS) | |
1256 | return -EINVAL; | |
1257 | ||
1258 | switch(c->id) { | |
1259 | case V4L2_CID_BRIGHTNESS: | |
1260 | cpia2_set_brightness(cam, c->value); | |
1261 | break; | |
1262 | case V4L2_CID_CONTRAST: | |
1263 | cpia2_set_contrast(cam, c->value); | |
1264 | break; | |
1265 | case V4L2_CID_SATURATION: | |
1266 | cpia2_set_saturation(cam, c->value); | |
1267 | break; | |
1268 | case V4L2_CID_HFLIP: | |
1269 | cpia2_set_property_mirror(cam, c->value); | |
1270 | break; | |
1271 | case V4L2_CID_VFLIP: | |
1272 | cpia2_set_property_flip(cam, c->value); | |
1273 | break; | |
1274 | case CPIA2_CID_TARGET_KB: | |
1275 | retval = cpia2_set_target_kb(cam, c->value); | |
1276 | break; | |
1277 | case CPIA2_CID_GPIO: | |
1278 | retval = cpia2_set_gpio(cam, c->value); | |
1279 | break; | |
1280 | case CPIA2_CID_FLICKER_MODE: | |
1281 | retval = cpia2_set_flicker_mode(cam, | |
1282 | flicker_controls[c->value].value); | |
1283 | break; | |
1284 | case CPIA2_CID_FRAMERATE: | |
1285 | retval = cpia2_set_fps(cam, framerate_controls[c->value].value); | |
1286 | break; | |
1287 | case CPIA2_CID_USB_ALT: | |
1288 | retval = cpia2_usb_change_streaming_alternate(cam, c->value); | |
1289 | break; | |
1290 | case CPIA2_CID_LIGHTS: | |
1291 | retval = cpia2_set_gpio(cam, lights_controls[c->value].value); | |
1292 | break; | |
1293 | case CPIA2_CID_RESET_CAMERA: | |
1294 | cpia2_usb_stream_pause(cam); | |
1295 | cpia2_reset_camera(cam); | |
1296 | cpia2_usb_stream_resume(cam); | |
1297 | break; | |
1298 | default: | |
1299 | retval = -EINVAL; | |
1300 | } | |
1301 | ||
1302 | return retval; | |
1303 | } | |
1304 | ||
1305 | /****************************************************************************** | |
1306 | * | |
1307 | * ioctl_g_jpegcomp | |
1308 | * | |
1309 | * V4L2 get the JPEG compression parameters | |
1310 | * | |
1311 | *****************************************************************************/ | |
1312 | ||
1313 | static int ioctl_g_jpegcomp(void *arg,struct camera_data *cam) | |
1314 | { | |
1315 | struct v4l2_jpegcompression *parms = arg; | |
1316 | ||
1317 | memset(parms, 0, sizeof(*parms)); | |
1318 | ||
1319 | parms->quality = 80; // TODO: Can this be made meaningful? | |
1320 | ||
1321 | parms->jpeg_markers = V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI; | |
1322 | if(!cam->params.compression.inhibit_htables) { | |
1323 | parms->jpeg_markers |= V4L2_JPEG_MARKER_DHT; | |
1324 | } | |
1325 | ||
1326 | parms->APPn = cam->APPn; | |
1327 | parms->APP_len = cam->APP_len; | |
1328 | if(cam->APP_len > 0) { | |
1329 | memcpy(parms->APP_data, cam->APP_data, cam->APP_len); | |
1330 | parms->jpeg_markers |= V4L2_JPEG_MARKER_APP; | |
1331 | } | |
1332 | ||
1333 | parms->COM_len = cam->COM_len; | |
1334 | if(cam->COM_len > 0) { | |
1335 | memcpy(parms->COM_data, cam->COM_data, cam->COM_len); | |
1336 | parms->jpeg_markers |= JPEG_MARKER_COM; | |
1337 | } | |
1338 | ||
1339 | DBG("G_JPEGCOMP APP_len:%d COM_len:%d\n", | |
1340 | parms->APP_len, parms->COM_len); | |
1341 | ||
1342 | return 0; | |
1343 | } | |
1344 | ||
1345 | /****************************************************************************** | |
1346 | * | |
1347 | * ioctl_s_jpegcomp | |
1348 | * | |
1349 | * V4L2 set the JPEG compression parameters | |
1350 | * NOTE: quality and some jpeg_markers are ignored. | |
1351 | * | |
1352 | *****************************************************************************/ | |
1353 | ||
1354 | static int ioctl_s_jpegcomp(void *arg,struct camera_data *cam) | |
1355 | { | |
1356 | struct v4l2_jpegcompression *parms = arg; | |
1357 | ||
1358 | DBG("S_JPEGCOMP APP_len:%d COM_len:%d\n", | |
1359 | parms->APP_len, parms->COM_len); | |
1360 | ||
1361 | cam->params.compression.inhibit_htables = | |
1362 | !(parms->jpeg_markers & V4L2_JPEG_MARKER_DHT); | |
1363 | ||
1364 | if(parms->APP_len != 0) { | |
1365 | if(parms->APP_len > 0 && | |
1366 | parms->APP_len <= sizeof(cam->APP_data) && | |
1367 | parms->APPn >= 0 && parms->APPn <= 15) { | |
1368 | cam->APPn = parms->APPn; | |
1369 | cam->APP_len = parms->APP_len; | |
1370 | memcpy(cam->APP_data, parms->APP_data, parms->APP_len); | |
1371 | } else { | |
1372 | LOG("Bad APPn Params n=%d len=%d\n", | |
1373 | parms->APPn, parms->APP_len); | |
1374 | return -EINVAL; | |
1375 | } | |
1376 | } else { | |
1377 | cam->APP_len = 0; | |
1378 | } | |
1379 | ||
1380 | if(parms->COM_len != 0) { | |
1381 | if(parms->COM_len > 0 && | |
1382 | parms->COM_len <= sizeof(cam->COM_data)) { | |
1383 | cam->COM_len = parms->COM_len; | |
1384 | memcpy(cam->COM_data, parms->COM_data, parms->COM_len); | |
1385 | } else { | |
1386 | LOG("Bad COM_len=%d\n", parms->COM_len); | |
1387 | return -EINVAL; | |
1388 | } | |
1389 | } | |
1390 | ||
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | /****************************************************************************** | |
1395 | * | |
1396 | * ioctl_reqbufs | |
1397 | * | |
1398 | * V4L2 Initiate memory mapping. | |
1399 | * NOTE: The user's request is ignored. For now the buffers are fixed. | |
1400 | * | |
1401 | *****************************************************************************/ | |
1402 | ||
1403 | static int ioctl_reqbufs(void *arg,struct camera_data *cam) | |
1404 | { | |
1405 | struct v4l2_requestbuffers *req = arg; | |
1406 | ||
1407 | if(req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1408 | req->memory != V4L2_MEMORY_MMAP) | |
1409 | return -EINVAL; | |
1410 | ||
1411 | DBG("REQBUFS requested:%d returning:%d\n", req->count, cam->num_frames); | |
1412 | req->count = cam->num_frames; | |
1413 | memset(&req->reserved, 0, sizeof(req->reserved)); | |
1414 | ||
1415 | return 0; | |
1416 | } | |
1417 | ||
1418 | /****************************************************************************** | |
1419 | * | |
1420 | * ioctl_querybuf | |
1421 | * | |
1422 | * V4L2 Query memory buffer status. | |
1423 | * | |
1424 | *****************************************************************************/ | |
1425 | ||
1426 | static int ioctl_querybuf(void *arg,struct camera_data *cam) | |
1427 | { | |
1428 | struct v4l2_buffer *buf = arg; | |
1429 | ||
1430 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1431 | buf->index > cam->num_frames) | |
1432 | return -EINVAL; | |
1433 | ||
1434 | buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; | |
1435 | buf->length = cam->frame_size; | |
1436 | ||
1437 | buf->memory = V4L2_MEMORY_MMAP; | |
1438 | ||
1439 | if(cam->mmapped) | |
1440 | buf->flags = V4L2_BUF_FLAG_MAPPED; | |
1441 | else | |
1442 | buf->flags = 0; | |
1443 | ||
1444 | switch (cam->buffers[buf->index].status) { | |
1445 | case FRAME_EMPTY: | |
1446 | case FRAME_ERROR: | |
1447 | case FRAME_READING: | |
1448 | buf->bytesused = 0; | |
1449 | buf->flags = V4L2_BUF_FLAG_QUEUED; | |
1450 | break; | |
1451 | case FRAME_READY: | |
1452 | buf->bytesused = cam->buffers[buf->index].length; | |
1453 | buf->timestamp = cam->buffers[buf->index].timestamp; | |
1454 | buf->sequence = cam->buffers[buf->index].seq; | |
1455 | buf->flags = V4L2_BUF_FLAG_DONE; | |
1456 | break; | |
1457 | } | |
1458 | ||
1459 | DBG("QUERYBUF index:%d offset:%d flags:%d seq:%d bytesused:%d\n", | |
1460 | buf->index, buf->m.offset, buf->flags, buf->sequence, | |
1461 | buf->bytesused); | |
1462 | ||
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | /****************************************************************************** | |
1467 | * | |
1468 | * ioctl_qbuf | |
1469 | * | |
1470 | * V4L2 User is freeing buffer | |
1471 | * | |
1472 | *****************************************************************************/ | |
1473 | ||
1474 | static int ioctl_qbuf(void *arg,struct camera_data *cam) | |
1475 | { | |
1476 | struct v4l2_buffer *buf = arg; | |
1477 | ||
1478 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1479 | buf->memory != V4L2_MEMORY_MMAP || | |
1480 | buf->index > cam->num_frames) | |
1481 | return -EINVAL; | |
1482 | ||
1483 | DBG("QBUF #%d\n", buf->index); | |
1484 | ||
1485 | if(cam->buffers[buf->index].status == FRAME_READY) | |
1486 | cam->buffers[buf->index].status = FRAME_EMPTY; | |
1487 | ||
1488 | return 0; | |
1489 | } | |
1490 | ||
1491 | /****************************************************************************** | |
1492 | * | |
1493 | * find_earliest_filled_buffer | |
1494 | * | |
1495 | * Helper for ioctl_dqbuf. Find the next ready buffer. | |
1496 | * | |
1497 | *****************************************************************************/ | |
1498 | ||
1499 | static int find_earliest_filled_buffer(struct camera_data *cam) | |
1500 | { | |
1501 | int i; | |
1502 | int found = -1; | |
1503 | for (i=0; i<cam->num_frames; i++) { | |
1504 | if(cam->buffers[i].status == FRAME_READY) { | |
1505 | if(found < 0) { | |
1506 | found = i; | |
1507 | } else { | |
1508 | /* find which buffer is earlier */ | |
1509 | struct timeval *tv1, *tv2; | |
1510 | tv1 = &cam->buffers[i].timestamp; | |
1511 | tv2 = &cam->buffers[found].timestamp; | |
1512 | if(tv1->tv_sec < tv2->tv_sec || | |
1513 | (tv1->tv_sec == tv2->tv_sec && | |
1514 | tv1->tv_usec < tv2->tv_usec)) | |
1515 | found = i; | |
1516 | } | |
1517 | } | |
1518 | } | |
1519 | return found; | |
1520 | } | |
1521 | ||
1522 | /****************************************************************************** | |
1523 | * | |
1524 | * ioctl_dqbuf | |
1525 | * | |
1526 | * V4L2 User is asking for a filled buffer. | |
1527 | * | |
1528 | *****************************************************************************/ | |
1529 | ||
1530 | static int ioctl_dqbuf(void *arg,struct camera_data *cam, struct file *file) | |
1531 | { | |
1532 | struct v4l2_buffer *buf = arg; | |
1533 | int frame; | |
1534 | ||
1535 | if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1536 | buf->memory != V4L2_MEMORY_MMAP) | |
1537 | return -EINVAL; | |
1538 | ||
1539 | frame = find_earliest_filled_buffer(cam); | |
1540 | ||
1541 | if(frame < 0 && file->f_flags&O_NONBLOCK) | |
1542 | return -EAGAIN; | |
1543 | ||
1544 | if(frame < 0) { | |
1545 | /* Wait for a frame to become available */ | |
1546 | struct framebuf *cb=cam->curbuff; | |
2ae15191 | 1547 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1548 | wait_event_interruptible(cam->wq_stream, |
1549 | !cam->present || | |
1550 | (cb=cam->curbuff)->status == FRAME_READY); | |
2ae15191 | 1551 | mutex_lock(&cam->busy_lock); |
ab33d507 AC |
1552 | if (signal_pending(current)) |
1553 | return -ERESTARTSYS; | |
1554 | if(!cam->present) | |
1555 | return -ENOTTY; | |
1556 | frame = cb->num; | |
1557 | } | |
1558 | ||
1559 | ||
1560 | buf->index = frame; | |
1561 | buf->bytesused = cam->buffers[buf->index].length; | |
1562 | buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE; | |
1563 | buf->field = V4L2_FIELD_NONE; | |
1564 | buf->timestamp = cam->buffers[buf->index].timestamp; | |
1565 | buf->sequence = cam->buffers[buf->index].seq; | |
1566 | buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; | |
1567 | buf->length = cam->frame_size; | |
1568 | buf->input = 0; | |
1569 | buf->reserved = 0; | |
1570 | memset(&buf->timecode, 0, sizeof(buf->timecode)); | |
1571 | ||
1572 | DBG("DQBUF #%d status:%d seq:%d length:%d\n", buf->index, | |
1573 | cam->buffers[buf->index].status, buf->sequence, buf->bytesused); | |
1574 | ||
1575 | return 0; | |
1576 | } | |
1577 | ||
1578 | /****************************************************************************** | |
1579 | * | |
1580 | * cpia2_ioctl | |
1581 | * | |
1582 | *****************************************************************************/ | |
1583 | static int cpia2_do_ioctl(struct inode *inode, struct file *file, | |
1584 | unsigned int ioctl_nr, void *arg) | |
1585 | { | |
1586 | struct video_device *dev = video_devdata(file); | |
1587 | struct camera_data *cam = video_get_drvdata(dev); | |
1588 | int retval = 0; | |
1589 | ||
1590 | if (!cam) | |
1591 | return -ENOTTY; | |
1592 | ||
1593 | /* make this _really_ smp-safe */ | |
2ae15191 | 1594 | if (mutex_lock_interruptible(&cam->busy_lock)) |
ab33d507 AC |
1595 | return -ERESTARTSYS; |
1596 | ||
1597 | if (!cam->present) { | |
2ae15191 | 1598 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1599 | return -ENODEV; |
1600 | } | |
1601 | ||
1602 | /* Priority check */ | |
1603 | switch (ioctl_nr) { | |
1604 | case VIDIOCSWIN: | |
1605 | case VIDIOCMCAPTURE: | |
1606 | case VIDIOC_S_FMT: | |
1607 | { | |
1608 | struct cpia2_fh *fh = file->private_data; | |
1609 | retval = v4l2_prio_check(&cam->prio, &fh->prio); | |
1610 | if(retval) { | |
2ae15191 | 1611 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1612 | return retval; |
1613 | } | |
1614 | break; | |
1615 | } | |
1616 | case VIDIOCGMBUF: | |
1617 | case VIDIOCSYNC: | |
1618 | { | |
1619 | struct cpia2_fh *fh = file->private_data; | |
1620 | if(fh->prio != V4L2_PRIORITY_RECORD) { | |
2ae15191 | 1621 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1622 | return -EBUSY; |
1623 | } | |
1624 | break; | |
1625 | } | |
1626 | default: | |
1627 | break; | |
1628 | } | |
1629 | ||
1630 | switch (ioctl_nr) { | |
be787ace | 1631 | case VIDIOCGCAP: /* query capabilities */ |
ab33d507 AC |
1632 | retval = ioctl_cap_query(arg, cam); |
1633 | break; | |
1634 | ||
1635 | case VIDIOCGCHAN: /* get video source - we are a camera, nothing else */ | |
1636 | retval = ioctl_get_channel(arg); | |
1637 | break; | |
1638 | case VIDIOCSCHAN: /* set video source - we are a camera, nothing else */ | |
1639 | retval = ioctl_set_channel(arg); | |
1640 | break; | |
1641 | case VIDIOCGPICT: /* image properties */ | |
1642 | memcpy(arg, &cam->vp, sizeof(struct video_picture)); | |
1643 | break; | |
1644 | case VIDIOCSPICT: | |
1645 | retval = ioctl_set_image_prop(arg, cam); | |
1646 | break; | |
1647 | case VIDIOCGWIN: /* get/set capture window */ | |
1648 | memcpy(arg, &cam->vw, sizeof(struct video_window)); | |
1649 | break; | |
1650 | case VIDIOCSWIN: | |
1651 | retval = ioctl_set_window_size(arg, cam, file->private_data); | |
1652 | break; | |
1653 | case VIDIOCGMBUF: /* mmap interface */ | |
1654 | retval = ioctl_get_mbuf(arg, cam); | |
1655 | break; | |
1656 | case VIDIOCMCAPTURE: | |
1657 | retval = ioctl_mcapture(arg, cam, file->private_data); | |
1658 | break; | |
1659 | case VIDIOCSYNC: | |
1660 | retval = ioctl_sync(arg, cam); | |
1661 | break; | |
1662 | /* pointless to implement overlay with this camera */ | |
1663 | case VIDIOCCAPTURE: | |
1664 | case VIDIOCGFBUF: | |
1665 | case VIDIOCSFBUF: | |
1666 | case VIDIOCKEY: | |
1667 | retval = -EINVAL; | |
1668 | break; | |
1669 | ||
1670 | /* tuner interface - we have none */ | |
1671 | case VIDIOCGTUNER: | |
1672 | case VIDIOCSTUNER: | |
1673 | case VIDIOCGFREQ: | |
1674 | case VIDIOCSFREQ: | |
1675 | retval = -EINVAL; | |
1676 | break; | |
1677 | ||
1678 | /* audio interface - we have none */ | |
1679 | case VIDIOCGAUDIO: | |
1680 | case VIDIOCSAUDIO: | |
1681 | retval = -EINVAL; | |
1682 | break; | |
1683 | ||
1684 | /* CPIA2 extension to Video4Linux API */ | |
1685 | case CPIA2_IOC_SET_GPIO: | |
1686 | retval = ioctl_set_gpio(arg, cam); | |
1687 | break; | |
1688 | case VIDIOC_QUERYCAP: | |
1689 | retval = ioctl_querycap(arg,cam); | |
1690 | break; | |
1691 | ||
1692 | case VIDIOC_ENUMINPUT: | |
1693 | case VIDIOC_G_INPUT: | |
1694 | case VIDIOC_S_INPUT: | |
1695 | retval = ioctl_input(ioctl_nr, arg,cam); | |
1696 | break; | |
1697 | ||
1698 | case VIDIOC_ENUM_FMT: | |
1699 | retval = ioctl_enum_fmt(arg,cam); | |
1700 | break; | |
1701 | case VIDIOC_TRY_FMT: | |
1702 | retval = ioctl_try_fmt(arg,cam); | |
1703 | break; | |
1704 | case VIDIOC_G_FMT: | |
1705 | retval = ioctl_get_fmt(arg,cam); | |
1706 | break; | |
1707 | case VIDIOC_S_FMT: | |
1708 | retval = ioctl_set_fmt(arg,cam,file->private_data); | |
1709 | break; | |
1710 | ||
1711 | case VIDIOC_CROPCAP: | |
1712 | retval = ioctl_cropcap(arg,cam); | |
1713 | break; | |
1714 | case VIDIOC_G_CROP: | |
1715 | case VIDIOC_S_CROP: | |
1716 | // TODO: I think cropping can be implemented - SJB | |
1717 | retval = -EINVAL; | |
1718 | break; | |
1719 | ||
1720 | case VIDIOC_QUERYCTRL: | |
1721 | retval = ioctl_queryctrl(arg,cam); | |
1722 | break; | |
1723 | case VIDIOC_QUERYMENU: | |
1724 | retval = ioctl_querymenu(arg,cam); | |
1725 | break; | |
1726 | case VIDIOC_G_CTRL: | |
1727 | retval = ioctl_g_ctrl(arg,cam); | |
1728 | break; | |
1729 | case VIDIOC_S_CTRL: | |
1730 | retval = ioctl_s_ctrl(arg,cam); | |
1731 | break; | |
1732 | ||
1733 | case VIDIOC_G_JPEGCOMP: | |
1734 | retval = ioctl_g_jpegcomp(arg,cam); | |
1735 | break; | |
1736 | case VIDIOC_S_JPEGCOMP: | |
1737 | retval = ioctl_s_jpegcomp(arg,cam); | |
1738 | break; | |
1739 | ||
1740 | case VIDIOC_G_PRIORITY: | |
1741 | { | |
1742 | struct cpia2_fh *fh = file->private_data; | |
1743 | *(enum v4l2_priority*)arg = fh->prio; | |
1744 | break; | |
1745 | } | |
1746 | case VIDIOC_S_PRIORITY: | |
1747 | { | |
1748 | struct cpia2_fh *fh = file->private_data; | |
1749 | enum v4l2_priority prio; | |
1750 | prio = *(enum v4l2_priority*)arg; | |
1751 | if(cam->streaming && | |
1752 | prio != fh->prio && | |
1753 | fh->prio == V4L2_PRIORITY_RECORD) { | |
1754 | /* Can't drop record priority while streaming */ | |
1755 | retval = -EBUSY; | |
1756 | } else if(prio == V4L2_PRIORITY_RECORD && | |
1757 | prio != fh->prio && | |
1758 | v4l2_prio_max(&cam->prio) == V4L2_PRIORITY_RECORD) { | |
1759 | /* Only one program can record at a time */ | |
1760 | retval = -EBUSY; | |
1761 | } else { | |
1762 | retval = v4l2_prio_change(&cam->prio, &fh->prio, prio); | |
1763 | } | |
1764 | break; | |
1765 | } | |
1766 | ||
1767 | case VIDIOC_REQBUFS: | |
1768 | retval = ioctl_reqbufs(arg,cam); | |
1769 | break; | |
1770 | case VIDIOC_QUERYBUF: | |
1771 | retval = ioctl_querybuf(arg,cam); | |
1772 | break; | |
1773 | case VIDIOC_QBUF: | |
1774 | retval = ioctl_qbuf(arg,cam); | |
1775 | break; | |
1776 | case VIDIOC_DQBUF: | |
1777 | retval = ioctl_dqbuf(arg,cam,file); | |
1778 | break; | |
1779 | case VIDIOC_STREAMON: | |
1780 | { | |
1781 | int type; | |
1782 | DBG("VIDIOC_STREAMON, streaming=%d\n", cam->streaming); | |
1783 | type = *(int*)arg; | |
1784 | if(!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1785 | retval = -EINVAL; | |
1786 | ||
1787 | if(!cam->streaming) { | |
1788 | retval = cpia2_usb_stream_start(cam, | |
1789 | cam->params.camera_state.stream_mode); | |
1790 | } else { | |
1791 | retval = -EINVAL; | |
1792 | } | |
1793 | ||
1794 | break; | |
1795 | } | |
1796 | case VIDIOC_STREAMOFF: | |
1797 | { | |
1798 | int type; | |
1799 | DBG("VIDIOC_STREAMOFF, streaming=%d\n", cam->streaming); | |
1800 | type = *(int*)arg; | |
1801 | if(!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1802 | retval = -EINVAL; | |
1803 | ||
1804 | if(cam->streaming) { | |
1805 | retval = cpia2_usb_stream_stop(cam); | |
1806 | } else { | |
1807 | retval = -EINVAL; | |
1808 | } | |
1809 | ||
1810 | break; | |
1811 | } | |
1812 | ||
1813 | case VIDIOC_ENUMOUTPUT: | |
1814 | case VIDIOC_G_OUTPUT: | |
1815 | case VIDIOC_S_OUTPUT: | |
1816 | case VIDIOC_G_MODULATOR: | |
1817 | case VIDIOC_S_MODULATOR: | |
1818 | ||
1819 | case VIDIOC_ENUMAUDIO: | |
1820 | case VIDIOC_G_AUDIO: | |
1821 | case VIDIOC_S_AUDIO: | |
1822 | ||
1823 | case VIDIOC_ENUMAUDOUT: | |
1824 | case VIDIOC_G_AUDOUT: | |
1825 | case VIDIOC_S_AUDOUT: | |
1826 | ||
1827 | case VIDIOC_ENUMSTD: | |
1828 | case VIDIOC_QUERYSTD: | |
1829 | case VIDIOC_G_STD: | |
1830 | case VIDIOC_S_STD: | |
1831 | ||
1832 | case VIDIOC_G_TUNER: | |
1833 | case VIDIOC_S_TUNER: | |
1834 | case VIDIOC_G_FREQUENCY: | |
1835 | case VIDIOC_S_FREQUENCY: | |
1836 | ||
1837 | case VIDIOC_OVERLAY: | |
1838 | case VIDIOC_G_FBUF: | |
1839 | case VIDIOC_S_FBUF: | |
1840 | ||
1841 | case VIDIOC_G_PARM: | |
1842 | case VIDIOC_S_PARM: | |
1843 | retval = -EINVAL; | |
1844 | break; | |
1845 | default: | |
1846 | retval = -ENOIOCTLCMD; | |
1847 | break; | |
1848 | } | |
1849 | ||
2ae15191 | 1850 | mutex_unlock(&cam->busy_lock); |
ab33d507 AC |
1851 | return retval; |
1852 | } | |
1853 | ||
1854 | static int cpia2_ioctl(struct inode *inode, struct file *file, | |
1855 | unsigned int ioctl_nr, unsigned long iarg) | |
1856 | { | |
1857 | return video_usercopy(inode, file, ioctl_nr, iarg, cpia2_do_ioctl); | |
1858 | } | |
1859 | ||
1860 | /****************************************************************************** | |
1861 | * | |
1862 | * cpia2_mmap | |
1863 | * | |
1864 | *****************************************************************************/ | |
1865 | static int cpia2_mmap(struct file *file, struct vm_area_struct *area) | |
1866 | { | |
1867 | int retval; | |
1868 | struct video_device *dev = video_devdata(file); | |
1869 | struct camera_data *cam = video_get_drvdata(dev); | |
1870 | ||
1871 | /* Priority check */ | |
1872 | struct cpia2_fh *fh = file->private_data; | |
1873 | if(fh->prio != V4L2_PRIORITY_RECORD) { | |
1874 | return -EBUSY; | |
1875 | } | |
1876 | ||
1877 | retval = cpia2_remap_buffer(cam, area); | |
1878 | ||
1879 | if(!retval) | |
1880 | fh->mmapped = 1; | |
1881 | return retval; | |
1882 | } | |
1883 | ||
1884 | /****************************************************************************** | |
1885 | * | |
1886 | * reset_camera_struct_v4l | |
1887 | * | |
1888 | * Sets all values to the defaults | |
1889 | *****************************************************************************/ | |
1890 | static void reset_camera_struct_v4l(struct camera_data *cam) | |
1891 | { | |
1892 | /*** | |
1893 | * Fill in the v4l structures. video_cap is filled in inside the VIDIOCCAP | |
1894 | * Ioctl. Here, just do the window and picture stucts. | |
1895 | ***/ | |
1896 | cam->vp.palette = (u16) VIDEO_PALETTE_RGB24; /* Is this right? */ | |
1897 | cam->vp.brightness = (u16) cam->params.color_params.brightness * 256; | |
1898 | cam->vp.colour = (u16) cam->params.color_params.saturation * 256; | |
1899 | cam->vp.contrast = (u16) cam->params.color_params.contrast * 256; | |
1900 | ||
1901 | cam->vw.x = 0; | |
1902 | cam->vw.y = 0; | |
1903 | cam->vw.width = cam->params.roi.width; | |
1904 | cam->vw.height = cam->params.roi.height; | |
1905 | cam->vw.flags = 0; | |
1906 | cam->vw.clipcount = 0; | |
1907 | ||
1908 | cam->frame_size = buffer_size; | |
1909 | cam->num_frames = num_buffers; | |
1910 | ||
1911 | /* FlickerModes */ | |
1912 | cam->params.flicker_control.flicker_mode_req = flicker_mode; | |
1913 | cam->params.flicker_control.mains_frequency = flicker_freq; | |
1914 | ||
1915 | /* streamMode */ | |
1916 | cam->params.camera_state.stream_mode = alternate; | |
1917 | ||
1918 | cam->pixelformat = V4L2_PIX_FMT_JPEG; | |
1919 | v4l2_prio_init(&cam->prio); | |
1920 | return; | |
1921 | } | |
1922 | ||
1923 | /*** | |
1924 | * The v4l video device structure initialized for this device | |
1925 | ***/ | |
1926 | static struct file_operations fops_template = { | |
2ae15191 AC |
1927 | .owner = THIS_MODULE, |
1928 | .open = cpia2_open, | |
1929 | .release = cpia2_close, | |
1930 | .read = cpia2_v4l_read, | |
1931 | .poll = cpia2_v4l_poll, | |
1932 | .ioctl = cpia2_ioctl, | |
1933 | .llseek = no_llseek, | |
1934 | .compat_ioctl = v4l_compat_ioctl32, | |
1935 | .mmap = cpia2_mmap, | |
ab33d507 AC |
1936 | }; |
1937 | ||
1938 | static struct video_device cpia2_template = { | |
1939 | /* I could not find any place for the old .initialize initializer?? */ | |
1940 | .owner= THIS_MODULE, | |
1941 | .name= "CPiA2 Camera", | |
1942 | .type= VID_TYPE_CAPTURE, | |
1943 | .type2 = V4L2_CAP_VIDEO_CAPTURE | | |
1944 | V4L2_CAP_STREAMING, | |
1945 | .hardware= VID_HARDWARE_CPIA2, | |
1946 | .minor= -1, | |
1947 | .fops= &fops_template, | |
1948 | .release= video_device_release, | |
1949 | }; | |
1950 | ||
1951 | /****************************************************************************** | |
1952 | * | |
1953 | * cpia2_register_camera | |
1954 | * | |
1955 | *****************************************************************************/ | |
1956 | int cpia2_register_camera(struct camera_data *cam) | |
1957 | { | |
1958 | cam->vdev = video_device_alloc(); | |
1959 | if(!cam->vdev) | |
1960 | return -ENOMEM; | |
1961 | ||
1962 | memcpy(cam->vdev, &cpia2_template, sizeof(cpia2_template)); | |
1963 | video_set_drvdata(cam->vdev, cam); | |
1964 | ||
1965 | reset_camera_struct_v4l(cam); | |
1966 | ||
1967 | /* register v4l device */ | |
1968 | if (video_register_device | |
1969 | (cam->vdev, VFL_TYPE_GRABBER, video_nr) == -1) { | |
1970 | ERR("video_register_device failed\n"); | |
1971 | video_device_release(cam->vdev); | |
1972 | return -ENODEV; | |
1973 | } | |
1974 | ||
1975 | return 0; | |
1976 | } | |
1977 | ||
1978 | /****************************************************************************** | |
1979 | * | |
1980 | * cpia2_unregister_camera | |
1981 | * | |
1982 | *****************************************************************************/ | |
1983 | void cpia2_unregister_camera(struct camera_data *cam) | |
1984 | { | |
1985 | if (!cam->open_count) { | |
1986 | video_unregister_device(cam->vdev); | |
1987 | } else { | |
1988 | LOG("/dev/video%d removed while open, " | |
1989 | "deferring video_unregister_device\n", | |
1990 | cam->vdev->minor); | |
1991 | } | |
1992 | } | |
1993 | ||
1994 | /****************************************************************************** | |
1995 | * | |
1996 | * check_parameters | |
1997 | * | |
1998 | * Make sure that all user-supplied parameters are sensible | |
1999 | *****************************************************************************/ | |
2000 | static void __init check_parameters(void) | |
2001 | { | |
2002 | if(buffer_size < PAGE_SIZE) { | |
2003 | buffer_size = PAGE_SIZE; | |
2004 | LOG("buffer_size too small, setting to %d\n", buffer_size); | |
2005 | } else if(buffer_size > 1024*1024) { | |
2006 | /* arbitrary upper limiit */ | |
2007 | buffer_size = 1024*1024; | |
2008 | LOG("buffer_size ridiculously large, setting to %d\n", | |
2009 | buffer_size); | |
2010 | } else { | |
2011 | buffer_size += PAGE_SIZE-1; | |
2012 | buffer_size &= ~(PAGE_SIZE-1); | |
2013 | } | |
2014 | ||
2015 | if(num_buffers < 1) { | |
2016 | num_buffers = 1; | |
2017 | LOG("num_buffers too small, setting to %d\n", num_buffers); | |
2018 | } else if(num_buffers > VIDEO_MAX_FRAME) { | |
2019 | num_buffers = VIDEO_MAX_FRAME; | |
2020 | LOG("num_buffers too large, setting to %d\n", num_buffers); | |
2021 | } | |
2022 | ||
2023 | if(alternate < USBIF_ISO_1 || alternate > USBIF_ISO_6) { | |
2024 | alternate = DEFAULT_ALT; | |
2025 | LOG("alternate specified is invalid, using %d\n", alternate); | |
2026 | } | |
2027 | ||
2028 | if (flicker_mode != NEVER_FLICKER && flicker_mode != ANTI_FLICKER_ON) { | |
2029 | flicker_mode = NEVER_FLICKER; | |
2030 | LOG("Flicker mode specified is invalid, using %d\n", | |
2031 | flicker_mode); | |
2032 | } | |
2033 | ||
2034 | if (flicker_freq != FLICKER_50 && flicker_freq != FLICKER_60) { | |
2035 | flicker_freq = FLICKER_60; | |
2036 | LOG("Flicker mode specified is invalid, using %d\n", | |
2037 | flicker_freq); | |
2038 | } | |
2039 | ||
2040 | if(video_nr < -1 || video_nr > 64) { | |
2041 | video_nr = -1; | |
2042 | LOG("invalid video_nr specified, must be -1 to 64\n"); | |
2043 | } | |
2044 | ||
2045 | DBG("Using %d buffers, each %d bytes, alternate=%d\n", | |
2046 | num_buffers, buffer_size, alternate); | |
2047 | } | |
2048 | ||
2049 | /************ Module Stuff ***************/ | |
2050 | ||
2051 | ||
2052 | /****************************************************************************** | |
2053 | * | |
2054 | * cpia2_init/module_init | |
2055 | * | |
2056 | *****************************************************************************/ | |
8cbe84f3 | 2057 | static int __init cpia2_init(void) |
ab33d507 AC |
2058 | { |
2059 | LOG("%s v%d.%d.%d\n", | |
2060 | ABOUT, CPIA2_MAJ_VER, CPIA2_MIN_VER, CPIA2_PATCH_VER); | |
2061 | check_parameters(); | |
2062 | cpia2_usb_init(); | |
2063 | return 0; | |
2064 | } | |
2065 | ||
2066 | ||
2067 | /****************************************************************************** | |
2068 | * | |
2069 | * cpia2_exit/module_exit | |
2070 | * | |
2071 | *****************************************************************************/ | |
8cbe84f3 | 2072 | static void __exit cpia2_exit(void) |
ab33d507 AC |
2073 | { |
2074 | cpia2_usb_cleanup(); | |
2075 | schedule_timeout(2 * HZ); | |
2076 | } | |
2077 | ||
ab33d507 AC |
2078 | module_init(cpia2_init); |
2079 | module_exit(cpia2_exit); | |
2080 |