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1da177e4 LT |
1 | /* |
2 | * konicawc.c - konica webcam driver | |
3 | * | |
4 | * Author: Simon Evans <spse@secret.org.uk> | |
5 | * | |
6 | * Copyright (C) 2002 Simon Evans | |
7 | * | |
8 | * Licence: GPL | |
9 | * | |
10 | * Driver for USB webcams based on Konica chipset. This | |
11 | * chipset is used in Intel YC76 camera. | |
12 | * | |
13 | */ | |
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/module.h> | |
17 | #include <linux/init.h> | |
18 | #include <linux/input.h> | |
16a334c0 | 19 | #include <linux/usb_input.h> |
1da177e4 LT |
20 | |
21 | #include "usbvideo.h" | |
22 | ||
23 | #define MAX_BRIGHTNESS 108 | |
24 | #define MAX_CONTRAST 108 | |
25 | #define MAX_SATURATION 108 | |
26 | #define MAX_SHARPNESS 108 | |
27 | #define MAX_WHITEBAL 372 | |
28 | #define MAX_SPEED 6 | |
29 | ||
30 | ||
31 | #define MAX_CAMERAS 1 | |
32 | ||
33 | #define DRIVER_VERSION "v1.4" | |
34 | #define DRIVER_DESC "Konica Webcam driver" | |
35 | ||
36 | enum ctrl_req { | |
37 | SetWhitebal = 0x01, | |
38 | SetBrightness = 0x02, | |
39 | SetSharpness = 0x03, | |
40 | SetContrast = 0x04, | |
41 | SetSaturation = 0x05, | |
42 | }; | |
43 | ||
44 | ||
45 | enum frame_sizes { | |
46 | SIZE_160X120 = 0, | |
47 | SIZE_160X136 = 1, | |
48 | SIZE_176X144 = 2, | |
49 | SIZE_320X240 = 3, | |
50 | ||
51 | }; | |
52 | ||
53 | #define MAX_FRAME_SIZE SIZE_320X240 | |
54 | ||
55 | static struct usbvideo *cams; | |
56 | ||
57 | #ifdef CONFIG_USB_DEBUG | |
58 | static int debug; | |
59 | #define DEBUG(n, format, arg...) \ | |
60 | if (n <= debug) { \ | |
61 | printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \ | |
62 | } | |
63 | #else | |
64 | #define DEBUG(n, arg...) | |
65 | static const int debug = 0; | |
66 | #endif | |
67 | ||
68 | ||
69 | /* Some default values for initial camera settings, | |
70 | can be set by modprobe */ | |
71 | ||
72 | static int size; | |
73 | static int speed = 6; /* Speed (fps) 0 (slowest) to 6 (fastest) */ | |
74 | static int brightness = MAX_BRIGHTNESS/2; | |
75 | static int contrast = MAX_CONTRAST/2; | |
76 | static int saturation = MAX_SATURATION/2; | |
77 | static int sharpness = MAX_SHARPNESS/2; | |
78 | static int whitebal = 3*(MAX_WHITEBAL/4); | |
79 | ||
4c4c9432 | 80 | static const int spd_to_iface[] = { 1, 0, 3, 2, 4, 5, 6 }; |
1da177e4 LT |
81 | |
82 | /* These FPS speeds are from the windows config box. They are | |
83 | * indexed on size (0-2) and speed (0-6). Divide by 3 to get the | |
84 | * real fps. | |
85 | */ | |
86 | ||
4c4c9432 | 87 | static const int spd_to_fps[][7] = { { 24, 40, 48, 60, 72, 80, 100 }, |
1da177e4 LT |
88 | { 24, 40, 48, 60, 72, 80, 100 }, |
89 | { 18, 30, 36, 45, 54, 60, 75 }, | |
90 | { 6, 10, 12, 15, 18, 21, 25 } }; | |
91 | ||
92 | struct cam_size { | |
93 | u16 width; | |
94 | u16 height; | |
95 | u8 cmd; | |
96 | }; | |
97 | ||
4c4c9432 | 98 | static const struct cam_size camera_sizes[] = { { 160, 120, 0x7 }, |
1da177e4 LT |
99 | { 160, 136, 0xa }, |
100 | { 176, 144, 0x4 }, | |
101 | { 320, 240, 0x5 } }; | |
102 | ||
103 | struct konicawc { | |
104 | u8 brightness; /* camera uses 0 - 9, x11 for real value */ | |
105 | u8 contrast; /* as above */ | |
106 | u8 saturation; /* as above */ | |
107 | u8 sharpness; /* as above */ | |
108 | u8 white_bal; /* 0 - 33, x11 for real value */ | |
109 | u8 speed; /* Stored as 0 - 6, used as index in spd_to_* (above) */ | |
110 | u8 size; /* Frame Size */ | |
111 | int height; | |
112 | int width; | |
113 | struct urb *sts_urb[USBVIDEO_NUMSBUF]; | |
114 | u8 sts_buf[USBVIDEO_NUMSBUF][FRAMES_PER_DESC]; | |
115 | struct urb *last_data_urb; | |
116 | int lastframe; | |
117 | int cur_frame_size; /* number of bytes in current frame size */ | |
118 | int maxline; /* number of lines per frame */ | |
119 | int yplanesz; /* Number of bytes in the Y plane */ | |
120 | unsigned int buttonsts:1; | |
121 | #ifdef CONFIG_INPUT | |
0259567a | 122 | struct input_dev *input; |
1da177e4 LT |
123 | char input_physname[64]; |
124 | #endif | |
125 | }; | |
126 | ||
127 | ||
128 | #define konicawc_set_misc(uvd, req, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, req, value, index, NULL, 0) | |
129 | #define konicawc_get_misc(uvd, req, value, index, buf, sz) konicawc_ctrl_msg(uvd, USB_DIR_IN, req, value, index, buf, sz) | |
130 | #define konicawc_set_value(uvd, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, 2, value, index, NULL, 0) | |
131 | ||
132 | ||
133 | static int konicawc_ctrl_msg(struct uvd *uvd, u8 dir, u8 request, u16 value, u16 index, void *buf, int len) | |
134 | { | |
135 | int retval = usb_control_msg(uvd->dev, | |
136 | dir ? usb_rcvctrlpipe(uvd->dev, 0) : usb_sndctrlpipe(uvd->dev, 0), | |
137 | request, 0x40 | dir, value, index, buf, len, 1000); | |
138 | return retval < 0 ? retval : 0; | |
139 | } | |
140 | ||
141 | ||
142 | static inline void konicawc_camera_on(struct uvd *uvd) | |
143 | { | |
144 | DEBUG(0, "camera on"); | |
145 | konicawc_set_misc(uvd, 0x2, 1, 0x0b); | |
146 | } | |
147 | ||
148 | ||
149 | static inline void konicawc_camera_off(struct uvd *uvd) | |
150 | { | |
151 | DEBUG(0, "camera off"); | |
152 | konicawc_set_misc(uvd, 0x2, 0, 0x0b); | |
153 | } | |
154 | ||
155 | ||
156 | static void konicawc_set_camera_size(struct uvd *uvd) | |
157 | { | |
158 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
159 | ||
160 | konicawc_set_misc(uvd, 0x2, camera_sizes[cam->size].cmd, 0x08); | |
161 | cam->width = camera_sizes[cam->size].width; | |
162 | cam->height = camera_sizes[cam->size].height; | |
163 | cam->yplanesz = cam->height * cam->width; | |
164 | cam->cur_frame_size = (cam->yplanesz * 3) / 2; | |
165 | cam->maxline = cam->yplanesz / 256; | |
166 | uvd->videosize = VIDEOSIZE(cam->width, cam->height); | |
167 | } | |
168 | ||
169 | ||
170 | static int konicawc_setup_on_open(struct uvd *uvd) | |
171 | { | |
172 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
173 | ||
174 | DEBUG(1, "setting brightness to %d (%d)", cam->brightness, | |
175 | cam->brightness * 11); | |
176 | konicawc_set_value(uvd, cam->brightness, SetBrightness); | |
177 | DEBUG(1, "setting white balance to %d (%d)", cam->white_bal, | |
178 | cam->white_bal * 11); | |
179 | konicawc_set_value(uvd, cam->white_bal, SetWhitebal); | |
180 | DEBUG(1, "setting contrast to %d (%d)", cam->contrast, | |
181 | cam->contrast * 11); | |
182 | konicawc_set_value(uvd, cam->contrast, SetContrast); | |
183 | DEBUG(1, "setting saturation to %d (%d)", cam->saturation, | |
184 | cam->saturation * 11); | |
185 | konicawc_set_value(uvd, cam->saturation, SetSaturation); | |
186 | DEBUG(1, "setting sharpness to %d (%d)", cam->sharpness, | |
187 | cam->sharpness * 11); | |
188 | konicawc_set_value(uvd, cam->sharpness, SetSharpness); | |
189 | konicawc_set_camera_size(uvd); | |
190 | cam->lastframe = -2; | |
191 | cam->buttonsts = 0; | |
192 | return 0; | |
193 | } | |
194 | ||
195 | ||
196 | static void konicawc_adjust_picture(struct uvd *uvd) | |
197 | { | |
198 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
199 | ||
200 | konicawc_camera_off(uvd); | |
201 | DEBUG(1, "new brightness: %d", uvd->vpic.brightness); | |
202 | uvd->vpic.brightness = (uvd->vpic.brightness > MAX_BRIGHTNESS) ? MAX_BRIGHTNESS : uvd->vpic.brightness; | |
203 | if(cam->brightness != uvd->vpic.brightness / 11) { | |
204 | cam->brightness = uvd->vpic.brightness / 11; | |
205 | DEBUG(1, "setting brightness to %d (%d)", cam->brightness, | |
206 | cam->brightness * 11); | |
207 | konicawc_set_value(uvd, cam->brightness, SetBrightness); | |
208 | } | |
209 | ||
210 | DEBUG(1, "new contrast: %d", uvd->vpic.contrast); | |
211 | uvd->vpic.contrast = (uvd->vpic.contrast > MAX_CONTRAST) ? MAX_CONTRAST : uvd->vpic.contrast; | |
212 | if(cam->contrast != uvd->vpic.contrast / 11) { | |
213 | cam->contrast = uvd->vpic.contrast / 11; | |
214 | DEBUG(1, "setting contrast to %d (%d)", cam->contrast, | |
215 | cam->contrast * 11); | |
216 | konicawc_set_value(uvd, cam->contrast, SetContrast); | |
217 | } | |
218 | konicawc_camera_on(uvd); | |
219 | } | |
220 | ||
0259567a DT |
221 | #ifdef CONFIG_INPUT |
222 | ||
223 | static void konicawc_register_input(struct konicawc *cam, struct usb_device *dev) | |
224 | { | |
225 | struct input_dev *input_dev; | |
226 | ||
227 | usb_make_path(dev, cam->input_physname, sizeof(cam->input_physname)); | |
228 | strncat(cam->input_physname, "/input0", sizeof(cam->input_physname)); | |
229 | ||
230 | cam->input = input_dev = input_allocate_device(); | |
231 | if (!input_dev) { | |
232 | warn("Not enough memory for camera's input device\n"); | |
233 | return; | |
234 | } | |
235 | ||
236 | input_dev->name = "Konicawc snapshot button"; | |
237 | input_dev->phys = cam->input_physname; | |
238 | usb_to_input_id(dev, &input_dev->id); | |
239 | input_dev->cdev.dev = &dev->dev; | |
240 | ||
241 | input_dev->evbit[0] = BIT(EV_KEY); | |
242 | input_dev->keybit[LONG(BTN_0)] = BIT(BTN_0); | |
243 | ||
244 | input_dev->private = cam; | |
245 | ||
246 | input_register_device(cam->input); | |
247 | } | |
248 | ||
249 | static void konicawc_unregister_input(struct konicawc *cam) | |
250 | { | |
251 | if (cam->input) { | |
252 | input_unregister_device(cam->input); | |
253 | cam->input = NULL; | |
254 | } | |
255 | } | |
256 | ||
257 | static void konicawc_report_buttonstat(struct konicawc *cam) | |
258 | { | |
259 | if (cam->input) { | |
260 | input_report_key(cam->input, BTN_0, cam->buttonsts); | |
261 | input_sync(cam->input); | |
262 | } | |
263 | } | |
264 | ||
265 | #else | |
266 | ||
267 | static inline void konicawc_register_input(struct konicawc *cam, struct usb_device *dev) { } | |
268 | static inline void konicawc_unregister_input(struct konicawc *cam) { } | |
269 | static inline void konicawc_report_buttonstat(struct konicawc *cam) { } | |
270 | ||
271 | #endif /* CONFIG_INPUT */ | |
1da177e4 LT |
272 | |
273 | static int konicawc_compress_iso(struct uvd *uvd, struct urb *dataurb, struct urb *stsurb) | |
274 | { | |
275 | char *cdata; | |
276 | int i, totlen = 0; | |
277 | unsigned char *status = stsurb->transfer_buffer; | |
278 | int keep = 0, discard = 0, bad = 0; | |
279 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
280 | ||
281 | for (i = 0; i < dataurb->number_of_packets; i++) { | |
282 | int button = cam->buttonsts; | |
283 | unsigned char sts; | |
284 | int n = dataurb->iso_frame_desc[i].actual_length; | |
285 | int st = dataurb->iso_frame_desc[i].status; | |
286 | cdata = dataurb->transfer_buffer + | |
287 | dataurb->iso_frame_desc[i].offset; | |
288 | ||
289 | /* Detect and ignore errored packets */ | |
290 | if (st < 0) { | |
291 | DEBUG(1, "Data error: packet=%d. len=%d. status=%d.", | |
292 | i, n, st); | |
293 | uvd->stats.iso_err_count++; | |
294 | continue; | |
295 | } | |
296 | ||
297 | /* Detect and ignore empty packets */ | |
298 | if (n <= 0) { | |
299 | uvd->stats.iso_skip_count++; | |
300 | continue; | |
301 | } | |
302 | ||
303 | /* See what the status data said about the packet */ | |
304 | sts = *(status+stsurb->iso_frame_desc[i].offset); | |
305 | ||
306 | /* sts: 0x80-0xff: frame start with frame number (ie 0-7f) | |
307 | * otherwise: | |
308 | * bit 0 0: keep packet | |
309 | * 1: drop packet (padding data) | |
310 | * | |
311 | * bit 4 0 button not clicked | |
312 | * 1 button clicked | |
313 | * button is used to `take a picture' (in software) | |
314 | */ | |
315 | ||
316 | if(sts < 0x80) { | |
317 | button = !!(sts & 0x40); | |
318 | sts &= ~0x40; | |
319 | } | |
320 | ||
321 | /* work out the button status, but don't do | |
322 | anything with it for now */ | |
323 | ||
324 | if(button != cam->buttonsts) { | |
325 | DEBUG(2, "button: %sclicked", button ? "" : "un"); | |
326 | cam->buttonsts = button; | |
0259567a | 327 | konicawc_report_buttonstat(cam); |
1da177e4 LT |
328 | } |
329 | ||
330 | if(sts == 0x01) { /* drop frame */ | |
331 | discard++; | |
332 | continue; | |
333 | } | |
334 | ||
335 | if((sts > 0x01) && (sts < 0x80)) { | |
336 | info("unknown status %2.2x", sts); | |
337 | bad++; | |
338 | continue; | |
339 | } | |
340 | if(!sts && cam->lastframe == -2) { | |
341 | DEBUG(2, "dropping frame looking for image start"); | |
342 | continue; | |
343 | } | |
344 | ||
345 | keep++; | |
346 | if(sts & 0x80) { /* frame start */ | |
347 | unsigned char marker[] = { 0, 0xff, 0, 0x00 }; | |
348 | ||
349 | if(cam->lastframe == -2) { | |
350 | DEBUG(2, "found initial image"); | |
351 | cam->lastframe = -1; | |
352 | } | |
353 | ||
354 | marker[3] = sts & 0x7F; | |
355 | RingQueue_Enqueue(&uvd->dp, marker, 4); | |
356 | totlen += 4; | |
357 | } | |
358 | ||
359 | totlen += n; /* Little local accounting */ | |
360 | RingQueue_Enqueue(&uvd->dp, cdata, n); | |
361 | } | |
362 | DEBUG(8, "finished: keep = %d discard = %d bad = %d added %d bytes", | |
363 | keep, discard, bad, totlen); | |
364 | return totlen; | |
365 | } | |
366 | ||
367 | ||
368 | static void resubmit_urb(struct uvd *uvd, struct urb *urb) | |
369 | { | |
370 | int i, ret; | |
371 | for (i = 0; i < FRAMES_PER_DESC; i++) { | |
372 | urb->iso_frame_desc[i].status = 0; | |
373 | } | |
374 | urb->dev = uvd->dev; | |
375 | urb->status = 0; | |
376 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
377 | DEBUG(3, "submitting urb of length %d", urb->transfer_buffer_length); | |
378 | if(ret) | |
379 | err("usb_submit_urb error (%d)", ret); | |
380 | ||
381 | } | |
382 | ||
383 | ||
384 | static void konicawc_isoc_irq(struct urb *urb, struct pt_regs *regs) | |
385 | { | |
386 | struct uvd *uvd = urb->context; | |
387 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
388 | ||
389 | /* We don't want to do anything if we are about to be removed! */ | |
390 | if (!CAMERA_IS_OPERATIONAL(uvd)) | |
391 | return; | |
392 | ||
393 | if (!uvd->streaming) { | |
394 | DEBUG(1, "Not streaming, but interrupt!"); | |
395 | return; | |
396 | } | |
397 | ||
398 | DEBUG(3, "got frame %d len = %d buflen =%d", urb->start_frame, urb->actual_length, urb->transfer_buffer_length); | |
399 | ||
400 | uvd->stats.urb_count++; | |
401 | ||
402 | if (urb->transfer_buffer_length > 32) { | |
403 | cam->last_data_urb = urb; | |
404 | return; | |
405 | } | |
406 | /* Copy the data received into ring queue */ | |
407 | if(cam->last_data_urb) { | |
408 | int len = 0; | |
409 | if(urb->start_frame != cam->last_data_urb->start_frame) | |
410 | err("Lost sync on frames"); | |
411 | else if (!urb->status && !cam->last_data_urb->status) | |
412 | len = konicawc_compress_iso(uvd, cam->last_data_urb, urb); | |
413 | ||
414 | resubmit_urb(uvd, cam->last_data_urb); | |
415 | resubmit_urb(uvd, urb); | |
416 | cam->last_data_urb = NULL; | |
417 | uvd->stats.urb_length = len; | |
418 | uvd->stats.data_count += len; | |
419 | if(len) | |
420 | RingQueue_WakeUpInterruptible(&uvd->dp); | |
421 | return; | |
422 | } | |
423 | return; | |
424 | } | |
425 | ||
426 | ||
427 | static int konicawc_start_data(struct uvd *uvd) | |
428 | { | |
429 | struct usb_device *dev = uvd->dev; | |
430 | int i, errFlag; | |
431 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
432 | int pktsz; | |
433 | struct usb_interface *intf; | |
434 | struct usb_host_interface *interface = NULL; | |
435 | ||
436 | intf = usb_ifnum_to_if(dev, uvd->iface); | |
437 | if (intf) | |
438 | interface = usb_altnum_to_altsetting(intf, | |
439 | spd_to_iface[cam->speed]); | |
440 | if (!interface) | |
441 | return -ENXIO; | |
442 | pktsz = le16_to_cpu(interface->endpoint[1].desc.wMaxPacketSize); | |
443 | DEBUG(1, "pktsz = %d", pktsz); | |
444 | if (!CAMERA_IS_OPERATIONAL(uvd)) { | |
445 | err("Camera is not operational"); | |
446 | return -EFAULT; | |
447 | } | |
448 | uvd->curframe = -1; | |
449 | konicawc_camera_on(uvd); | |
450 | /* Alternate interface 1 is is the biggest frame size */ | |
451 | i = usb_set_interface(dev, uvd->iface, uvd->ifaceAltActive); | |
452 | if (i < 0) { | |
453 | err("usb_set_interface error"); | |
454 | uvd->last_error = i; | |
455 | return -EBUSY; | |
456 | } | |
457 | ||
458 | /* We double buffer the Iso lists */ | |
459 | for (i=0; i < USBVIDEO_NUMSBUF; i++) { | |
460 | int j, k; | |
461 | struct urb *urb = uvd->sbuf[i].urb; | |
462 | urb->dev = dev; | |
463 | urb->context = uvd; | |
464 | urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp); | |
465 | urb->interval = 1; | |
466 | urb->transfer_flags = URB_ISO_ASAP; | |
467 | urb->transfer_buffer = uvd->sbuf[i].data; | |
468 | urb->complete = konicawc_isoc_irq; | |
469 | urb->number_of_packets = FRAMES_PER_DESC; | |
470 | urb->transfer_buffer_length = pktsz * FRAMES_PER_DESC; | |
471 | for (j=k=0; j < FRAMES_PER_DESC; j++, k += pktsz) { | |
472 | urb->iso_frame_desc[j].offset = k; | |
473 | urb->iso_frame_desc[j].length = pktsz; | |
474 | } | |
475 | ||
476 | urb = cam->sts_urb[i]; | |
477 | urb->dev = dev; | |
478 | urb->context = uvd; | |
479 | urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp-1); | |
480 | urb->interval = 1; | |
481 | urb->transfer_flags = URB_ISO_ASAP; | |
482 | urb->transfer_buffer = cam->sts_buf[i]; | |
483 | urb->complete = konicawc_isoc_irq; | |
484 | urb->number_of_packets = FRAMES_PER_DESC; | |
485 | urb->transfer_buffer_length = FRAMES_PER_DESC; | |
486 | for (j=0; j < FRAMES_PER_DESC; j++) { | |
487 | urb->iso_frame_desc[j].offset = j; | |
488 | urb->iso_frame_desc[j].length = 1; | |
489 | } | |
490 | } | |
491 | ||
492 | cam->last_data_urb = NULL; | |
493 | ||
494 | /* Submit all URBs */ | |
495 | for (i=0; i < USBVIDEO_NUMSBUF; i++) { | |
496 | errFlag = usb_submit_urb(cam->sts_urb[i], GFP_KERNEL); | |
497 | if (errFlag) | |
498 | err("usb_submit_isoc(%d) ret %d", i, errFlag); | |
499 | ||
500 | errFlag = usb_submit_urb(uvd->sbuf[i].urb, GFP_KERNEL); | |
501 | if (errFlag) | |
502 | err ("usb_submit_isoc(%d) ret %d", i, errFlag); | |
503 | } | |
504 | ||
505 | uvd->streaming = 1; | |
506 | DEBUG(1, "streaming=1 video_endp=$%02x", uvd->video_endp); | |
507 | return 0; | |
508 | } | |
509 | ||
510 | ||
511 | static void konicawc_stop_data(struct uvd *uvd) | |
512 | { | |
513 | int i, j; | |
514 | struct konicawc *cam; | |
515 | ||
516 | if ((uvd == NULL) || (!uvd->streaming) || (uvd->dev == NULL)) | |
517 | return; | |
518 | ||
519 | konicawc_camera_off(uvd); | |
520 | uvd->streaming = 0; | |
521 | cam = (struct konicawc *)uvd->user_data; | |
522 | cam->last_data_urb = NULL; | |
523 | ||
524 | /* Unschedule all of the iso td's */ | |
525 | for (i=0; i < USBVIDEO_NUMSBUF; i++) { | |
526 | usb_kill_urb(uvd->sbuf[i].urb); | |
527 | usb_kill_urb(cam->sts_urb[i]); | |
528 | } | |
529 | ||
530 | if (!uvd->remove_pending) { | |
531 | /* Set packet size to 0 */ | |
532 | j = usb_set_interface(uvd->dev, uvd->iface, uvd->ifaceAltInactive); | |
533 | if (j < 0) { | |
534 | err("usb_set_interface() error %d.", j); | |
535 | uvd->last_error = j; | |
536 | } | |
537 | } | |
538 | } | |
539 | ||
540 | ||
541 | static void konicawc_process_isoc(struct uvd *uvd, struct usbvideo_frame *frame) | |
542 | { | |
543 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
544 | int maxline = cam->maxline; | |
545 | int yplanesz = cam->yplanesz; | |
546 | ||
547 | assert(frame != NULL); | |
548 | ||
549 | DEBUG(5, "maxline = %d yplanesz = %d", maxline, yplanesz); | |
550 | DEBUG(3, "Frame state = %d", frame->scanstate); | |
551 | ||
552 | if(frame->scanstate == ScanState_Scanning) { | |
553 | int drop = 0; | |
554 | int curframe; | |
555 | int fdrops = 0; | |
556 | DEBUG(3, "Searching for marker, queue len = %d", RingQueue_GetLength(&uvd->dp)); | |
557 | while(RingQueue_GetLength(&uvd->dp) >= 4) { | |
558 | if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) && | |
559 | (RING_QUEUE_PEEK(&uvd->dp, 1) == 0xff) && | |
560 | (RING_QUEUE_PEEK(&uvd->dp, 2) == 0x00) && | |
561 | (RING_QUEUE_PEEK(&uvd->dp, 3) < 0x80)) { | |
562 | curframe = RING_QUEUE_PEEK(&uvd->dp, 3); | |
563 | if(cam->lastframe >= 0) { | |
564 | fdrops = (0x80 + curframe - cam->lastframe) & 0x7F; | |
565 | fdrops--; | |
566 | if(fdrops) { | |
567 | info("Dropped %d frames (%d -> %d)", fdrops, | |
568 | cam->lastframe, curframe); | |
569 | } | |
570 | } | |
571 | cam->lastframe = curframe; | |
572 | frame->curline = 0; | |
573 | frame->scanstate = ScanState_Lines; | |
574 | RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 4); | |
575 | break; | |
576 | } | |
577 | RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1); | |
578 | drop++; | |
579 | } | |
580 | if(drop) | |
581 | DEBUG(2, "dropped %d bytes looking for new frame", drop); | |
582 | } | |
583 | ||
584 | if(frame->scanstate == ScanState_Scanning) | |
585 | return; | |
586 | ||
587 | /* Try to move data from queue into frame buffer | |
588 | * We get data in blocks of 384 bytes made up of: | |
589 | * 256 Y, 64 U, 64 V. | |
590 | * This needs to be written out as a Y plane, a U plane and a V plane. | |
591 | */ | |
592 | ||
593 | while ( frame->curline < maxline && (RingQueue_GetLength(&uvd->dp) >= 384)) { | |
594 | /* Y */ | |
595 | RingQueue_Dequeue(&uvd->dp, frame->data + (frame->curline * 256), 256); | |
596 | /* U */ | |
597 | RingQueue_Dequeue(&uvd->dp, frame->data + yplanesz + (frame->curline * 64), 64); | |
598 | /* V */ | |
599 | RingQueue_Dequeue(&uvd->dp, frame->data + (5 * yplanesz)/4 + (frame->curline * 64), 64); | |
600 | frame->seqRead_Length += 384; | |
601 | frame->curline++; | |
602 | } | |
603 | /* See if we filled the frame */ | |
604 | if (frame->curline == maxline) { | |
605 | DEBUG(5, "got whole frame"); | |
606 | ||
607 | frame->frameState = FrameState_Done_Hold; | |
608 | frame->curline = 0; | |
609 | uvd->curframe = -1; | |
610 | uvd->stats.frame_num++; | |
611 | } | |
612 | } | |
613 | ||
614 | ||
615 | static int konicawc_find_fps(int size, int fps) | |
616 | { | |
617 | int i; | |
618 | ||
619 | fps *= 3; | |
620 | DEBUG(1, "konica_find_fps: size = %d fps = %d", size, fps); | |
621 | if(fps <= spd_to_fps[size][0]) | |
622 | return 0; | |
623 | ||
624 | if(fps >= spd_to_fps[size][MAX_SPEED]) | |
625 | return MAX_SPEED; | |
626 | ||
627 | for(i = 0; i < MAX_SPEED; i++) { | |
628 | if((fps >= spd_to_fps[size][i]) && (fps <= spd_to_fps[size][i+1])) { | |
629 | DEBUG(2, "fps %d between %d and %d", fps, i, i+1); | |
630 | if( (fps - spd_to_fps[size][i]) < (spd_to_fps[size][i+1] - fps)) | |
631 | return i; | |
632 | else | |
633 | return i+1; | |
634 | } | |
635 | } | |
636 | return MAX_SPEED+1; | |
637 | } | |
638 | ||
639 | ||
640 | static int konicawc_set_video_mode(struct uvd *uvd, struct video_window *vw) | |
641 | { | |
642 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
643 | int newspeed = cam->speed; | |
644 | int newsize; | |
645 | int x = vw->width; | |
646 | int y = vw->height; | |
647 | int fps = vw->flags; | |
648 | ||
649 | if(x > 0 && y > 0) { | |
650 | DEBUG(2, "trying to find size %d,%d", x, y); | |
651 | for(newsize = 0; newsize <= MAX_FRAME_SIZE; newsize++) { | |
652 | if((camera_sizes[newsize].width == x) && (camera_sizes[newsize].height == y)) | |
653 | break; | |
654 | } | |
655 | } else { | |
656 | newsize = cam->size; | |
657 | } | |
658 | ||
659 | if(newsize > MAX_FRAME_SIZE) { | |
660 | DEBUG(1, "couldn't find size %d,%d", x, y); | |
661 | return -EINVAL; | |
662 | } | |
663 | ||
664 | if(fps > 0) { | |
665 | DEBUG(1, "trying to set fps to %d", fps); | |
666 | newspeed = konicawc_find_fps(newsize, fps); | |
667 | DEBUG(1, "find_fps returned %d (%d)", newspeed, spd_to_fps[newsize][newspeed]); | |
668 | } | |
669 | ||
670 | if(newspeed > MAX_SPEED) | |
671 | return -EINVAL; | |
672 | ||
673 | DEBUG(1, "setting size to %d speed to %d", newsize, newspeed); | |
674 | if((newsize == cam->size) && (newspeed == cam->speed)) { | |
675 | DEBUG(1, "Nothing to do"); | |
676 | return 0; | |
677 | } | |
678 | DEBUG(0, "setting to %dx%d @ %d fps", camera_sizes[newsize].width, | |
679 | camera_sizes[newsize].height, spd_to_fps[newsize][newspeed]/3); | |
680 | ||
681 | konicawc_stop_data(uvd); | |
682 | uvd->ifaceAltActive = spd_to_iface[newspeed]; | |
683 | DEBUG(1, "new interface = %d", uvd->ifaceAltActive); | |
684 | cam->speed = newspeed; | |
685 | ||
686 | if(cam->size != newsize) { | |
687 | cam->size = newsize; | |
688 | konicawc_set_camera_size(uvd); | |
689 | } | |
690 | ||
691 | /* Flush the input queue and clear any current frame in progress */ | |
692 | ||
693 | RingQueue_Flush(&uvd->dp); | |
694 | cam->lastframe = -2; | |
695 | if(uvd->curframe != -1) { | |
0259567a DT |
696 | uvd->frame[uvd->curframe].curline = 0; |
697 | uvd->frame[uvd->curframe].seqRead_Length = 0; | |
698 | uvd->frame[uvd->curframe].seqRead_Index = 0; | |
1da177e4 LT |
699 | } |
700 | ||
701 | konicawc_start_data(uvd); | |
702 | return 0; | |
703 | } | |
704 | ||
705 | ||
706 | static int konicawc_calculate_fps(struct uvd *uvd) | |
707 | { | |
708 | struct konicawc *cam = uvd->user_data; | |
709 | return spd_to_fps[cam->size][cam->speed]/3; | |
710 | } | |
711 | ||
712 | ||
713 | static void konicawc_configure_video(struct uvd *uvd) | |
714 | { | |
715 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
716 | u8 buf[2]; | |
717 | ||
718 | memset(&uvd->vpic, 0, sizeof(uvd->vpic)); | |
719 | memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old)); | |
720 | ||
721 | RESTRICT_TO_RANGE(brightness, 0, MAX_BRIGHTNESS); | |
722 | RESTRICT_TO_RANGE(contrast, 0, MAX_CONTRAST); | |
723 | RESTRICT_TO_RANGE(saturation, 0, MAX_SATURATION); | |
724 | RESTRICT_TO_RANGE(sharpness, 0, MAX_SHARPNESS); | |
725 | RESTRICT_TO_RANGE(whitebal, 0, MAX_WHITEBAL); | |
726 | ||
727 | cam->brightness = brightness / 11; | |
728 | cam->contrast = contrast / 11; | |
729 | cam->saturation = saturation / 11; | |
730 | cam->sharpness = sharpness / 11; | |
731 | cam->white_bal = whitebal / 11; | |
732 | ||
733 | uvd->vpic.colour = 108; | |
734 | uvd->vpic.hue = 108; | |
735 | uvd->vpic.brightness = brightness; | |
736 | uvd->vpic.contrast = contrast; | |
737 | uvd->vpic.whiteness = whitebal; | |
738 | uvd->vpic.depth = 6; | |
739 | uvd->vpic.palette = VIDEO_PALETTE_YUV420P; | |
740 | ||
741 | memset(&uvd->vcap, 0, sizeof(uvd->vcap)); | |
742 | strcpy(uvd->vcap.name, "Konica Webcam"); | |
743 | uvd->vcap.type = VID_TYPE_CAPTURE; | |
744 | uvd->vcap.channels = 1; | |
745 | uvd->vcap.audios = 0; | |
746 | uvd->vcap.minwidth = camera_sizes[SIZE_160X120].width; | |
747 | uvd->vcap.minheight = camera_sizes[SIZE_160X120].height; | |
748 | uvd->vcap.maxwidth = camera_sizes[SIZE_320X240].width; | |
749 | uvd->vcap.maxheight = camera_sizes[SIZE_320X240].height; | |
750 | ||
751 | memset(&uvd->vchan, 0, sizeof(uvd->vchan)); | |
752 | uvd->vchan.flags = 0 ; | |
753 | uvd->vchan.tuners = 0; | |
754 | uvd->vchan.channel = 0; | |
755 | uvd->vchan.type = VIDEO_TYPE_CAMERA; | |
756 | strcpy(uvd->vchan.name, "Camera"); | |
757 | ||
758 | /* Talk to device */ | |
759 | DEBUG(1, "device init"); | |
760 | if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2)) | |
761 | DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]); | |
762 | if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2)) | |
763 | DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]); | |
764 | if(konicawc_set_misc(uvd, 0x2, 0, 0xd)) | |
765 | DEBUG(2, "2,0,d failed"); | |
766 | DEBUG(1, "setting initial values"); | |
767 | } | |
768 | ||
1da177e4 LT |
769 | static int konicawc_probe(struct usb_interface *intf, const struct usb_device_id *devid) |
770 | { | |
771 | struct usb_device *dev = interface_to_usbdev(intf); | |
772 | struct uvd *uvd = NULL; | |
773 | int ix, i, nas; | |
774 | int actInterface=-1, inactInterface=-1, maxPS=0; | |
775 | unsigned char video_ep = 0; | |
776 | ||
777 | DEBUG(1, "konicawc_probe(%p)", intf); | |
778 | ||
779 | /* We don't handle multi-config cameras */ | |
780 | if (dev->descriptor.bNumConfigurations != 1) | |
781 | return -ENODEV; | |
782 | ||
783 | info("Konica Webcam (rev. 0x%04x)", le16_to_cpu(dev->descriptor.bcdDevice)); | |
784 | RESTRICT_TO_RANGE(speed, 0, MAX_SPEED); | |
785 | ||
786 | /* Validate found interface: must have one ISO endpoint */ | |
787 | nas = intf->num_altsetting; | |
788 | if (nas != 8) { | |
789 | err("Incorrect number of alternate settings (%d) for this camera!", nas); | |
790 | return -ENODEV; | |
791 | } | |
792 | /* Validate all alternate settings */ | |
793 | for (ix=0; ix < nas; ix++) { | |
794 | const struct usb_host_interface *interface; | |
795 | const struct usb_endpoint_descriptor *endpoint; | |
796 | ||
797 | interface = &intf->altsetting[ix]; | |
798 | i = interface->desc.bAlternateSetting; | |
799 | if (interface->desc.bNumEndpoints != 2) { | |
800 | err("Interface %d. has %u. endpoints!", | |
801 | interface->desc.bInterfaceNumber, | |
802 | (unsigned)(interface->desc.bNumEndpoints)); | |
803 | return -ENODEV; | |
804 | } | |
805 | endpoint = &interface->endpoint[1].desc; | |
806 | DEBUG(1, "found endpoint: addr: 0x%2.2x maxps = 0x%4.4x", | |
807 | endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize)); | |
808 | if (video_ep == 0) | |
809 | video_ep = endpoint->bEndpointAddress; | |
810 | else if (video_ep != endpoint->bEndpointAddress) { | |
811 | err("Alternate settings have different endpoint addresses!"); | |
812 | return -ENODEV; | |
813 | } | |
814 | if ((endpoint->bmAttributes & 0x03) != 0x01) { | |
815 | err("Interface %d. has non-ISO endpoint!", | |
816 | interface->desc.bInterfaceNumber); | |
817 | return -ENODEV; | |
818 | } | |
819 | if ((endpoint->bEndpointAddress & 0x80) == 0) { | |
820 | err("Interface %d. has ISO OUT endpoint!", | |
821 | interface->desc.bInterfaceNumber); | |
822 | return -ENODEV; | |
823 | } | |
824 | if (le16_to_cpu(endpoint->wMaxPacketSize) == 0) { | |
825 | if (inactInterface < 0) | |
826 | inactInterface = i; | |
827 | else { | |
828 | err("More than one inactive alt. setting!"); | |
829 | return -ENODEV; | |
830 | } | |
831 | } else { | |
832 | if (i == spd_to_iface[speed]) { | |
833 | /* This one is the requested one */ | |
834 | actInterface = i; | |
835 | } | |
836 | } | |
837 | if (le16_to_cpu(endpoint->wMaxPacketSize) > maxPS) | |
838 | maxPS = le16_to_cpu(endpoint->wMaxPacketSize); | |
839 | } | |
840 | if(actInterface == -1) { | |
841 | err("Cant find required endpoint"); | |
842 | return -ENODEV; | |
843 | } | |
844 | ||
845 | DEBUG(1, "Selecting requested active setting=%d. maxPS=%d.", actInterface, maxPS); | |
846 | ||
847 | uvd = usbvideo_AllocateDevice(cams); | |
848 | if (uvd != NULL) { | |
849 | struct konicawc *cam = (struct konicawc *)(uvd->user_data); | |
850 | /* Here uvd is a fully allocated uvd object */ | |
851 | for(i = 0; i < USBVIDEO_NUMSBUF; i++) { | |
852 | cam->sts_urb[i] = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL); | |
853 | if(cam->sts_urb[i] == NULL) { | |
854 | while(i--) { | |
855 | usb_free_urb(cam->sts_urb[i]); | |
856 | } | |
857 | err("can't allocate urbs"); | |
858 | return -ENOMEM; | |
859 | } | |
860 | } | |
861 | cam->speed = speed; | |
862 | RESTRICT_TO_RANGE(size, SIZE_160X120, SIZE_320X240); | |
863 | cam->width = camera_sizes[size].width; | |
864 | cam->height = camera_sizes[size].height; | |
865 | cam->size = size; | |
866 | ||
867 | uvd->flags = 0; | |
868 | uvd->debug = debug; | |
869 | uvd->dev = dev; | |
870 | uvd->iface = intf->altsetting->desc.bInterfaceNumber; | |
871 | uvd->ifaceAltInactive = inactInterface; | |
872 | uvd->ifaceAltActive = actInterface; | |
873 | uvd->video_endp = video_ep; | |
874 | uvd->iso_packet_len = maxPS; | |
875 | uvd->paletteBits = 1L << VIDEO_PALETTE_YUV420P; | |
876 | uvd->defaultPalette = VIDEO_PALETTE_YUV420P; | |
877 | uvd->canvas = VIDEOSIZE(320, 240); | |
878 | uvd->videosize = VIDEOSIZE(cam->width, cam->height); | |
879 | ||
880 | /* Initialize konicawc specific data */ | |
881 | konicawc_configure_video(uvd); | |
882 | ||
883 | i = usbvideo_RegisterVideoDevice(uvd); | |
884 | uvd->max_frame_size = (320 * 240 * 3)/2; | |
885 | if (i != 0) { | |
886 | err("usbvideo_RegisterVideoDevice() failed."); | |
887 | uvd = NULL; | |
888 | } | |
0259567a DT |
889 | |
890 | konicawc_register_input(cam, dev); | |
1da177e4 LT |
891 | } |
892 | ||
893 | if (uvd) { | |
894 | usb_set_intfdata (intf, uvd); | |
895 | return 0; | |
896 | } | |
897 | return -EIO; | |
898 | } | |
899 | ||
900 | ||
901 | static void konicawc_free_uvd(struct uvd *uvd) | |
902 | { | |
903 | int i; | |
904 | struct konicawc *cam = (struct konicawc *)uvd->user_data; | |
905 | ||
0259567a DT |
906 | konicawc_unregister_input(cam); |
907 | ||
908 | for (i = 0; i < USBVIDEO_NUMSBUF; i++) { | |
1da177e4 LT |
909 | usb_free_urb(cam->sts_urb[i]); |
910 | cam->sts_urb[i] = NULL; | |
911 | } | |
912 | } | |
913 | ||
914 | ||
915 | static struct usb_device_id id_table[] = { | |
916 | { USB_DEVICE(0x04c8, 0x0720) }, /* Intel YC 76 */ | |
917 | { } /* Terminating entry */ | |
918 | }; | |
919 | ||
920 | ||
921 | static int __init konicawc_init(void) | |
922 | { | |
923 | struct usbvideo_cb cbTbl; | |
924 | info(DRIVER_DESC " " DRIVER_VERSION); | |
925 | memset(&cbTbl, 0, sizeof(cbTbl)); | |
926 | cbTbl.probe = konicawc_probe; | |
927 | cbTbl.setupOnOpen = konicawc_setup_on_open; | |
928 | cbTbl.processData = konicawc_process_isoc; | |
929 | cbTbl.getFPS = konicawc_calculate_fps; | |
930 | cbTbl.setVideoMode = konicawc_set_video_mode; | |
931 | cbTbl.startDataPump = konicawc_start_data; | |
932 | cbTbl.stopDataPump = konicawc_stop_data; | |
933 | cbTbl.adjustPicture = konicawc_adjust_picture; | |
934 | cbTbl.userFree = konicawc_free_uvd; | |
935 | return usbvideo_register( | |
936 | &cams, | |
937 | MAX_CAMERAS, | |
938 | sizeof(struct konicawc), | |
939 | "konicawc", | |
940 | &cbTbl, | |
941 | THIS_MODULE, | |
942 | id_table); | |
943 | } | |
944 | ||
945 | ||
946 | static void __exit konicawc_cleanup(void) | |
947 | { | |
948 | usbvideo_Deregister(&cams); | |
949 | } | |
950 | ||
951 | ||
952 | MODULE_DEVICE_TABLE(usb, id_table); | |
953 | ||
954 | MODULE_LICENSE("GPL"); | |
955 | MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>"); | |
956 | MODULE_DESCRIPTION(DRIVER_DESC); | |
957 | module_param(speed, int, 0); | |
958 | MODULE_PARM_DESC(speed, "Initial speed: 0 (slowest) - 6 (fastest)"); | |
959 | module_param(size, int, 0); | |
960 | MODULE_PARM_DESC(size, "Initial Size 0: 160x120 1: 160x136 2: 176x144 3: 320x240"); | |
961 | module_param(brightness, int, 0); | |
962 | MODULE_PARM_DESC(brightness, "Initial brightness 0 - 108"); | |
963 | module_param(contrast, int, 0); | |
964 | MODULE_PARM_DESC(contrast, "Initial contrast 0 - 108"); | |
965 | module_param(saturation, int, 0); | |
966 | MODULE_PARM_DESC(saturation, "Initial saturation 0 - 108"); | |
967 | module_param(sharpness, int, 0); | |
968 | MODULE_PARM_DESC(sharpness, "Initial brightness 0 - 108"); | |
969 | module_param(whitebal, int, 0); | |
970 | MODULE_PARM_DESC(whitebal, "Initial white balance 0 - 363"); | |
971 | ||
972 | #ifdef CONFIG_USB_DEBUG | |
973 | module_param(debug, int, S_IRUGO | S_IWUSR); | |
974 | MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)"); | |
975 | #endif | |
976 | ||
977 | module_init(konicawc_init); | |
978 | module_exit(konicawc_cleanup); |