1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* Linux driver for Philips webcam |
3 | USB and Video4Linux interface part. |
4 | (C) 1999-2004 Nemosoft Unv. |
5 | (C) 2004-2006 Luc Saillard (luc@saillard.org) |
6 | (C) 2011 Hans de Goede <hdegoede@redhat.com> |
7 | |
8 | NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx |
9 | driver and thus may have bugs that are not present in the original version. |
10 | Please send bug reports and support requests to <luc@saillard.org>. |
11 | The decompression routines have been implemented by reverse-engineering the |
12 | Nemosoft binary pwcx module. Caveat emptor. |
13 | |
14 | |
15 | */ |
16 | |
17 | /* |
18 | This code forms the interface between the USB layers and the Philips |
19 | specific stuff. Some adanved stuff of the driver falls under an |
20 | NDA, signed between me and Philips B.V., Eindhoven, the Netherlands, and |
21 | is thus not distributed in source form. The binary pwcx.o module |
22 | contains the code that falls under the NDA. |
23 | |
24 | In case you're wondering: 'pwc' stands for "Philips WebCam", but |
25 | I really didn't want to type 'philips_web_cam' every time (I'm lazy as |
26 | any Linux kernel hacker, but I don't like uncomprehensible abbreviations |
27 | without explanation). |
28 | |
29 | Oh yes, convention: to disctinguish between all the various pointers to |
30 | device-structures, I use these names for the pointer variables: |
31 | udev: struct usb_device * |
32 | vdev: struct video_device (member of pwc_dev) |
33 | pdev: struct pwc_devive * |
34 | */ |
35 | |
36 | /* Contributors: |
37 | - Alvarado: adding whitebalance code |
38 | - Alistar Moire: QuickCam 3000 Pro device/product ID |
39 | - Tony Hoyle: Creative Labs Webcam 5 device/product ID |
40 | - Mark Burazin: solving hang in VIDIOCSYNC when camera gets unplugged |
41 | - Jk Fang: Sotec Afina Eye ID |
42 | - Xavier Roche: QuickCam Pro 4000 ID |
43 | - Jens Knudsen: QuickCam Zoom ID |
44 | - J. Debert: QuickCam for Notebooks ID |
45 | - Pham Thanh Nam: webcam snapshot button as an event input device |
46 | */ |
47 | |
48 | #include <linux/errno.h> |
49 | #include <linux/init.h> |
50 | #include <linux/mm.h> |
51 | #include <linux/module.h> |
52 | #include <linux/poll.h> |
53 | #include <linux/slab.h> |
54 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV |
55 | #include <linux/usb/input.h> |
56 | #endif |
57 | #include <linux/vmalloc.h> |
58 | #include <asm/io.h> |
59 | #include <linux/kernel.h> /* simple_strtol() */ |
60 | |
61 | #include "pwc.h" |
62 | #include "pwc-kiara.h" |
63 | #include "pwc-timon.h" |
64 | #include "pwc-dec23.h" |
65 | #include "pwc-dec1.h" |
66 | |
67 | #define CREATE_TRACE_POINTS |
68 | #include <trace/events/pwc.h> |
69 | |
70 | /* Function prototypes and driver templates */ |
71 | |
72 | /* hotplug device table support */ |
73 | static const struct usb_device_id pwc_device_table [] = { |
74 | { USB_DEVICE(0x041E, 0x400C) }, /* Creative Webcam 5 */ |
75 | { USB_DEVICE(0x041E, 0x4011) }, /* Creative Webcam Pro Ex */ |
76 | |
77 | { USB_DEVICE(0x046D, 0x08B0) }, /* Logitech QuickCam 3000 Pro */ |
78 | { USB_DEVICE(0x046D, 0x08B1) }, /* Logitech QuickCam Notebook Pro */ |
79 | { USB_DEVICE(0x046D, 0x08B2) }, /* Logitech QuickCam 4000 Pro */ |
80 | { USB_DEVICE(0x046D, 0x08B3) }, /* Logitech QuickCam Zoom (old model) */ |
81 | { USB_DEVICE(0x046D, 0x08B4) }, /* Logitech QuickCam Zoom (new model) */ |
82 | { USB_DEVICE(0x046D, 0x08B5) }, /* Logitech QuickCam Orbit/Sphere */ |
83 | { USB_DEVICE(0x046D, 0x08B6) }, /* Logitech/Cisco VT Camera */ |
84 | { USB_DEVICE(0x046D, 0x08B7) }, /* Logitech ViewPort AV 100 */ |
85 | { USB_DEVICE(0x046D, 0x08B8) }, /* Logitech QuickCam */ |
86 | |
87 | { USB_DEVICE(0x0471, 0x0302) }, /* Philips PCA645VC */ |
88 | { USB_DEVICE(0x0471, 0x0303) }, /* Philips PCA646VC */ |
89 | { USB_DEVICE(0x0471, 0x0304) }, /* Askey VC010 type 2 */ |
90 | { USB_DEVICE(0x0471, 0x0307) }, /* Philips PCVC675K (Vesta) */ |
91 | { USB_DEVICE(0x0471, 0x0308) }, /* Philips PCVC680K (Vesta Pro) */ |
92 | { USB_DEVICE(0x0471, 0x030C) }, /* Philips PCVC690K (Vesta Pro Scan) */ |
93 | { USB_DEVICE(0x0471, 0x0310) }, /* Philips PCVC730K (ToUCam Fun)/PCVC830 (ToUCam II) */ |
94 | { USB_DEVICE(0x0471, 0x0311) }, /* Philips PCVC740K (ToUCam Pro)/PCVC840 (ToUCam II) */ |
95 | { USB_DEVICE(0x0471, 0x0312) }, /* Philips PCVC750K (ToUCam Pro Scan) */ |
96 | { USB_DEVICE(0x0471, 0x0313) }, /* Philips PCVC720K/40 (ToUCam XS) */ |
97 | { USB_DEVICE(0x0471, 0x0329) }, /* Philips SPC 900NC webcam */ |
98 | { USB_DEVICE(0x0471, 0x032C) }, /* Philips SPC 880NC webcam */ |
99 | |
100 | { USB_DEVICE(0x04CC, 0x8116) }, /* Sotec Afina Eye */ |
101 | |
102 | { USB_DEVICE(0x055D, 0x9000) }, /* Samsung MPC-C10 */ |
103 | { USB_DEVICE(0x055D, 0x9001) }, /* Samsung MPC-C30 */ |
104 | { USB_DEVICE(0x055D, 0x9002) }, /* Samsung SNC-35E (Ver3.0) */ |
105 | |
106 | { USB_DEVICE(0x069A, 0x0001) }, /* Askey VC010 type 1 */ |
107 | |
108 | { USB_DEVICE(0x06BE, 0x8116) }, /* AME Co. Afina Eye */ |
109 | |
110 | { USB_DEVICE(0x0d81, 0x1900) }, /* Visionite VCS-UC300 */ |
111 | { USB_DEVICE(0x0d81, 0x1910) }, /* Visionite VCS-UM100 */ |
112 | |
113 | { } |
114 | }; |
115 | MODULE_DEVICE_TABLE(usb, pwc_device_table); |
116 | |
117 | static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id *id); |
118 | static void usb_pwc_disconnect(struct usb_interface *intf); |
119 | static void pwc_isoc_cleanup(struct pwc_device *pdev); |
120 | |
121 | static struct usb_driver pwc_driver = { |
122 | .name = "Philips webcam" , /* name */ |
123 | .id_table = pwc_device_table, |
124 | .probe = usb_pwc_probe, /* probe() */ |
125 | .disconnect = usb_pwc_disconnect, /* disconnect() */ |
126 | }; |
127 | |
128 | #define MAX_DEV_HINTS 20 |
129 | #define MAX_ISOC_ERRORS 20 |
130 | |
131 | #ifdef CONFIG_USB_PWC_DEBUG |
132 | int pwc_trace = PWC_DEBUG_LEVEL; |
133 | #endif |
134 | static int power_save = -1; |
135 | static int leds[2] = { 100, 0 }; |
136 | |
137 | /***/ |
138 | |
139 | static const struct v4l2_file_operations pwc_fops = { |
140 | .owner = THIS_MODULE, |
141 | .open = v4l2_fh_open, |
142 | .release = vb2_fop_release, |
143 | .read = vb2_fop_read, |
144 | .poll = vb2_fop_poll, |
145 | .mmap = vb2_fop_mmap, |
146 | .unlocked_ioctl = video_ioctl2, |
147 | }; |
148 | static const struct video_device pwc_template = { |
149 | .name = "Philips Webcam" , /* Filled in later */ |
150 | .release = video_device_release_empty, |
151 | .fops = &pwc_fops, |
152 | .ioctl_ops = &pwc_ioctl_ops, |
153 | }; |
154 | |
155 | /***************************************************************************/ |
156 | /* Private functions */ |
157 | |
158 | static void *pwc_alloc_urb_buffer(struct usb_device *dev, |
159 | size_t size, dma_addr_t *dma_handle) |
160 | { |
161 | struct device *dmadev = dev->bus->sysdev; |
162 | void *buffer = kmalloc(size, GFP_KERNEL); |
163 | |
164 | if (!buffer) |
165 | return NULL; |
166 | |
167 | *dma_handle = dma_map_single(dmadev, buffer, size, DMA_FROM_DEVICE); |
168 | if (dma_mapping_error(dev: dmadev, dma_addr: *dma_handle)) { |
169 | kfree(objp: buffer); |
170 | return NULL; |
171 | } |
172 | |
173 | return buffer; |
174 | } |
175 | |
176 | static void pwc_free_urb_buffer(struct usb_device *dev, |
177 | size_t size, |
178 | void *buffer, |
179 | dma_addr_t dma_handle) |
180 | { |
181 | struct device *dmadev = dev->bus->sysdev; |
182 | |
183 | dma_unmap_single(dmadev, dma_handle, size, DMA_FROM_DEVICE); |
184 | kfree(objp: buffer); |
185 | } |
186 | |
187 | static struct pwc_frame_buf *pwc_get_next_fill_buf(struct pwc_device *pdev) |
188 | { |
189 | unsigned long flags = 0; |
190 | struct pwc_frame_buf *buf = NULL; |
191 | |
192 | spin_lock_irqsave(&pdev->queued_bufs_lock, flags); |
193 | if (list_empty(head: &pdev->queued_bufs)) |
194 | goto leave; |
195 | |
196 | buf = list_entry(pdev->queued_bufs.next, struct pwc_frame_buf, list); |
197 | list_del(entry: &buf->list); |
198 | leave: |
199 | spin_unlock_irqrestore(lock: &pdev->queued_bufs_lock, flags); |
200 | return buf; |
201 | } |
202 | |
203 | static void pwc_snapshot_button(struct pwc_device *pdev, int down) |
204 | { |
205 | if (down) { |
206 | PWC_TRACE("Snapshot button pressed.\n" ); |
207 | } else { |
208 | PWC_TRACE("Snapshot button released.\n" ); |
209 | } |
210 | |
211 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV |
212 | if (pdev->button_dev) { |
213 | input_report_key(dev: pdev->button_dev, KEY_CAMERA, value: down); |
214 | input_sync(dev: pdev->button_dev); |
215 | } |
216 | #endif |
217 | } |
218 | |
219 | static void pwc_frame_complete(struct pwc_device *pdev) |
220 | { |
221 | struct pwc_frame_buf *fbuf = pdev->fill_buf; |
222 | |
223 | /* The ToUCam Fun CMOS sensor causes the firmware to send 2 or 3 bogus |
224 | frames on the USB wire after an exposure change. This conditition is |
225 | however detected in the cam and a bit is set in the header. |
226 | */ |
227 | if (pdev->type == 730) { |
228 | unsigned char *ptr = (unsigned char *)fbuf->data; |
229 | |
230 | if (ptr[1] == 1 && ptr[0] & 0x10) { |
231 | PWC_TRACE("Hyundai CMOS sensor bug. Dropping frame.\n" ); |
232 | pdev->drop_frames += 2; |
233 | } |
234 | if ((ptr[0] ^ pdev->vmirror) & 0x01) { |
235 | pwc_snapshot_button(pdev, down: ptr[0] & 0x01); |
236 | } |
237 | if ((ptr[0] ^ pdev->vmirror) & 0x02) { |
238 | if (ptr[0] & 0x02) |
239 | PWC_TRACE("Image is mirrored.\n" ); |
240 | else |
241 | PWC_TRACE("Image is normal.\n" ); |
242 | } |
243 | pdev->vmirror = ptr[0] & 0x03; |
244 | /* Sometimes the trailer of the 730 is still sent as a 4 byte packet |
245 | after a short frame; this condition is filtered out specifically. A 4 byte |
246 | frame doesn't make sense anyway. |
247 | So we get either this sequence: |
248 | drop_bit set -> 4 byte frame -> short frame -> good frame |
249 | Or this one: |
250 | drop_bit set -> short frame -> good frame |
251 | So we drop either 3 or 2 frames in all! |
252 | */ |
253 | if (fbuf->filled == 4) |
254 | pdev->drop_frames++; |
255 | } else if (pdev->type == 740 || pdev->type == 720) { |
256 | unsigned char *ptr = (unsigned char *)fbuf->data; |
257 | if ((ptr[0] ^ pdev->vmirror) & 0x01) { |
258 | pwc_snapshot_button(pdev, down: ptr[0] & 0x01); |
259 | } |
260 | pdev->vmirror = ptr[0] & 0x03; |
261 | } |
262 | |
263 | /* In case we were instructed to drop the frame, do so silently. */ |
264 | if (pdev->drop_frames > 0) { |
265 | pdev->drop_frames--; |
266 | } else { |
267 | /* Check for underflow first */ |
268 | if (fbuf->filled < pdev->frame_total_size) { |
269 | PWC_DEBUG_FLOW("Frame buffer underflow (%d bytes); discarded.\n" , |
270 | fbuf->filled); |
271 | } else { |
272 | fbuf->vb.field = V4L2_FIELD_NONE; |
273 | fbuf->vb.sequence = pdev->vframe_count; |
274 | vb2_buffer_done(vb: &fbuf->vb.vb2_buf, state: VB2_BUF_STATE_DONE); |
275 | pdev->fill_buf = NULL; |
276 | pdev->vsync = 0; |
277 | } |
278 | } /* !drop_frames */ |
279 | pdev->vframe_count++; |
280 | } |
281 | |
282 | /* This gets called for the Isochronous pipe (video). This is done in |
283 | * interrupt time, so it has to be fast, not crash, and not stall. Neat. |
284 | */ |
285 | static void pwc_isoc_handler(struct urb *urb) |
286 | { |
287 | struct pwc_device *pdev = (struct pwc_device *)urb->context; |
288 | struct device *dmadev = urb->dev->bus->sysdev; |
289 | int i, fst, flen; |
290 | unsigned char *iso_buf = NULL; |
291 | |
292 | trace_pwc_handler_enter(urb, pdev); |
293 | |
294 | if (urb->status == -ENOENT || urb->status == -ECONNRESET || |
295 | urb->status == -ESHUTDOWN) { |
296 | PWC_DEBUG_OPEN("URB (%p) unlinked %ssynchronously.\n" , |
297 | urb, urb->status == -ENOENT ? "" : "a" ); |
298 | return; |
299 | } |
300 | |
301 | if (pdev->fill_buf == NULL) |
302 | pdev->fill_buf = pwc_get_next_fill_buf(pdev); |
303 | |
304 | if (urb->status != 0) { |
305 | const char *errmsg; |
306 | |
307 | errmsg = "Unknown" ; |
308 | switch(urb->status) { |
309 | case -ENOSR: errmsg = "Buffer error (overrun)" ; break; |
310 | case -EPIPE: errmsg = "Stalled (device not responding)" ; break; |
311 | case -EOVERFLOW: errmsg = "Babble (bad cable?)" ; break; |
312 | case -EPROTO: errmsg = "Bit-stuff error (bad cable?)" ; break; |
313 | case -EILSEQ: errmsg = "CRC/Timeout (could be anything)" ; break; |
314 | case -ETIME: errmsg = "Device does not respond" ; break; |
315 | } |
316 | PWC_ERROR("pwc_isoc_handler() called with status %d [%s].\n" , |
317 | urb->status, errmsg); |
318 | /* Give up after a number of contiguous errors */ |
319 | if (++pdev->visoc_errors > MAX_ISOC_ERRORS) |
320 | { |
321 | PWC_ERROR("Too many ISOC errors, bailing out.\n" ); |
322 | if (pdev->fill_buf) { |
323 | vb2_buffer_done(vb: &pdev->fill_buf->vb.vb2_buf, |
324 | state: VB2_BUF_STATE_ERROR); |
325 | pdev->fill_buf = NULL; |
326 | } |
327 | } |
328 | pdev->vsync = 0; /* Drop the current frame */ |
329 | goto handler_end; |
330 | } |
331 | |
332 | /* Reset ISOC error counter. We did get here, after all. */ |
333 | pdev->visoc_errors = 0; |
334 | |
335 | dma_sync_single_for_cpu(dev: dmadev, |
336 | addr: urb->transfer_dma, |
337 | size: urb->transfer_buffer_length, |
338 | dir: DMA_FROM_DEVICE); |
339 | |
340 | /* vsync: 0 = don't copy data |
341 | 1 = sync-hunt |
342 | 2 = synched |
343 | */ |
344 | /* Compact data */ |
345 | for (i = 0; i < urb->number_of_packets; i++) { |
346 | fst = urb->iso_frame_desc[i].status; |
347 | flen = urb->iso_frame_desc[i].actual_length; |
348 | iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; |
349 | if (fst != 0) { |
350 | PWC_ERROR("Iso frame %d has error %d\n" , i, fst); |
351 | continue; |
352 | } |
353 | if (flen > 0 && pdev->vsync) { |
354 | struct pwc_frame_buf *fbuf = pdev->fill_buf; |
355 | |
356 | if (pdev->vsync == 1) { |
357 | fbuf->vb.vb2_buf.timestamp = ktime_get_ns(); |
358 | pdev->vsync = 2; |
359 | } |
360 | |
361 | if (flen + fbuf->filled > pdev->frame_total_size) { |
362 | PWC_ERROR("Frame overflow (%d > %d)\n" , |
363 | flen + fbuf->filled, |
364 | pdev->frame_total_size); |
365 | pdev->vsync = 0; /* Let's wait for an EOF */ |
366 | } else { |
367 | memcpy(fbuf->data + fbuf->filled, iso_buf, |
368 | flen); |
369 | fbuf->filled += flen; |
370 | } |
371 | } |
372 | if (flen < pdev->vlast_packet_size) { |
373 | /* Shorter packet... end of frame */ |
374 | if (pdev->vsync == 2) |
375 | pwc_frame_complete(pdev); |
376 | if (pdev->fill_buf == NULL) |
377 | pdev->fill_buf = pwc_get_next_fill_buf(pdev); |
378 | if (pdev->fill_buf) { |
379 | pdev->fill_buf->filled = 0; |
380 | pdev->vsync = 1; |
381 | } |
382 | } |
383 | pdev->vlast_packet_size = flen; |
384 | } |
385 | |
386 | dma_sync_single_for_device(dev: dmadev, |
387 | addr: urb->transfer_dma, |
388 | size: urb->transfer_buffer_length, |
389 | dir: DMA_FROM_DEVICE); |
390 | |
391 | handler_end: |
392 | trace_pwc_handler_exit(urb, pdev); |
393 | |
394 | i = usb_submit_urb(urb, GFP_ATOMIC); |
395 | if (i != 0) |
396 | PWC_ERROR("Error (%d) re-submitting urb in pwc_isoc_handler.\n" , i); |
397 | } |
398 | |
399 | /* Both v4l2_lock and vb_queue_lock should be locked when calling this */ |
400 | static int pwc_isoc_init(struct pwc_device *pdev) |
401 | { |
402 | struct usb_device *udev; |
403 | struct urb *urb; |
404 | int i, j, ret; |
405 | struct usb_interface *intf; |
406 | struct usb_host_interface *idesc = NULL; |
407 | int compression = 0; /* 0..3 = uncompressed..high */ |
408 | |
409 | pdev->vsync = 0; |
410 | pdev->vlast_packet_size = 0; |
411 | pdev->fill_buf = NULL; |
412 | pdev->vframe_count = 0; |
413 | pdev->visoc_errors = 0; |
414 | udev = pdev->udev; |
415 | |
416 | retry: |
417 | /* We first try with low compression and then retry with a higher |
418 | compression setting if there is not enough bandwidth. */ |
419 | ret = pwc_set_video_mode(pdev, width: pdev->width, height: pdev->height, pixfmt: pdev->pixfmt, |
420 | frames: pdev->vframes, compression: &compression, send_to_cam: 1); |
421 | |
422 | /* Get the current alternate interface, adjust packet size */ |
423 | intf = usb_ifnum_to_if(dev: udev, ifnum: 0); |
424 | if (intf) |
425 | idesc = usb_altnum_to_altsetting(intf, altnum: pdev->valternate); |
426 | if (!idesc) |
427 | return -EIO; |
428 | |
429 | /* Search video endpoint */ |
430 | pdev->vmax_packet_size = -1; |
431 | for (i = 0; i < idesc->desc.bNumEndpoints; i++) { |
432 | if ((idesc->endpoint[i].desc.bEndpointAddress & 0xF) == pdev->vendpoint) { |
433 | pdev->vmax_packet_size = le16_to_cpu(idesc->endpoint[i].desc.wMaxPacketSize); |
434 | break; |
435 | } |
436 | } |
437 | |
438 | if (pdev->vmax_packet_size < 0 || pdev->vmax_packet_size > ISO_MAX_FRAME_SIZE) { |
439 | PWC_ERROR("Failed to find packet size for video endpoint in current alternate setting.\n" ); |
440 | return -ENFILE; /* Odd error, that should be noticeable */ |
441 | } |
442 | |
443 | /* Set alternate interface */ |
444 | PWC_DEBUG_OPEN("Setting alternate interface %d\n" , pdev->valternate); |
445 | ret = usb_set_interface(dev: pdev->udev, ifnum: 0, alternate: pdev->valternate); |
446 | if (ret == -ENOSPC && compression < 3) { |
447 | compression++; |
448 | goto retry; |
449 | } |
450 | if (ret < 0) |
451 | return ret; |
452 | |
453 | /* Allocate and init Isochronuous urbs */ |
454 | for (i = 0; i < MAX_ISO_BUFS; i++) { |
455 | urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); |
456 | if (urb == NULL) { |
457 | pwc_isoc_cleanup(pdev); |
458 | return -ENOMEM; |
459 | } |
460 | pdev->urbs[i] = urb; |
461 | PWC_DEBUG_MEMORY("Allocated URB at 0x%p\n" , urb); |
462 | |
463 | urb->interval = 1; // devik |
464 | urb->dev = udev; |
465 | urb->pipe = usb_rcvisocpipe(udev, pdev->vendpoint); |
466 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
467 | urb->transfer_buffer_length = ISO_BUFFER_SIZE; |
468 | urb->transfer_buffer = pwc_alloc_urb_buffer(dev: udev, |
469 | size: urb->transfer_buffer_length, |
470 | dma_handle: &urb->transfer_dma); |
471 | if (urb->transfer_buffer == NULL) { |
472 | PWC_ERROR("Failed to allocate urb buffer %d\n" , i); |
473 | pwc_isoc_cleanup(pdev); |
474 | return -ENOMEM; |
475 | } |
476 | urb->complete = pwc_isoc_handler; |
477 | urb->context = pdev; |
478 | urb->start_frame = 0; |
479 | urb->number_of_packets = ISO_FRAMES_PER_DESC; |
480 | for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { |
481 | urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; |
482 | urb->iso_frame_desc[j].length = pdev->vmax_packet_size; |
483 | } |
484 | } |
485 | |
486 | /* link */ |
487 | for (i = 0; i < MAX_ISO_BUFS; i++) { |
488 | ret = usb_submit_urb(urb: pdev->urbs[i], GFP_KERNEL); |
489 | if (ret == -ENOSPC && compression < 3) { |
490 | compression++; |
491 | pwc_isoc_cleanup(pdev); |
492 | goto retry; |
493 | } |
494 | if (ret) { |
495 | PWC_ERROR("isoc_init() submit_urb %d failed with error %d\n" , i, ret); |
496 | pwc_isoc_cleanup(pdev); |
497 | return ret; |
498 | } |
499 | PWC_DEBUG_MEMORY("URB 0x%p submitted.\n" , pdev->urbs[i]); |
500 | } |
501 | |
502 | /* All is done... */ |
503 | PWC_DEBUG_OPEN("<< pwc_isoc_init()\n" ); |
504 | return 0; |
505 | } |
506 | |
507 | static void pwc_iso_stop(struct pwc_device *pdev) |
508 | { |
509 | int i; |
510 | |
511 | /* Unlinking ISOC buffers one by one */ |
512 | for (i = 0; i < MAX_ISO_BUFS; i++) { |
513 | if (pdev->urbs[i]) { |
514 | PWC_DEBUG_MEMORY("Unlinking URB %p\n" , pdev->urbs[i]); |
515 | usb_kill_urb(urb: pdev->urbs[i]); |
516 | } |
517 | } |
518 | } |
519 | |
520 | static void pwc_iso_free(struct pwc_device *pdev) |
521 | { |
522 | int i; |
523 | |
524 | /* Freeing ISOC buffers one by one */ |
525 | for (i = 0; i < MAX_ISO_BUFS; i++) { |
526 | struct urb *urb = pdev->urbs[i]; |
527 | |
528 | if (urb) { |
529 | PWC_DEBUG_MEMORY("Freeing URB\n" ); |
530 | if (urb->transfer_buffer) |
531 | pwc_free_urb_buffer(dev: urb->dev, |
532 | size: urb->transfer_buffer_length, |
533 | buffer: urb->transfer_buffer, |
534 | dma_handle: urb->transfer_dma); |
535 | usb_free_urb(urb); |
536 | pdev->urbs[i] = NULL; |
537 | } |
538 | } |
539 | } |
540 | |
541 | /* Both v4l2_lock and vb_queue_lock should be locked when calling this */ |
542 | static void pwc_isoc_cleanup(struct pwc_device *pdev) |
543 | { |
544 | PWC_DEBUG_OPEN(">> pwc_isoc_cleanup()\n" ); |
545 | |
546 | pwc_iso_stop(pdev); |
547 | pwc_iso_free(pdev); |
548 | usb_set_interface(dev: pdev->udev, ifnum: 0, alternate: 0); |
549 | |
550 | PWC_DEBUG_OPEN("<< pwc_isoc_cleanup()\n" ); |
551 | } |
552 | |
553 | /* Must be called with vb_queue_lock hold */ |
554 | static void pwc_cleanup_queued_bufs(struct pwc_device *pdev, |
555 | enum vb2_buffer_state state) |
556 | { |
557 | unsigned long flags = 0; |
558 | |
559 | spin_lock_irqsave(&pdev->queued_bufs_lock, flags); |
560 | while (!list_empty(head: &pdev->queued_bufs)) { |
561 | struct pwc_frame_buf *buf; |
562 | |
563 | buf = list_entry(pdev->queued_bufs.next, struct pwc_frame_buf, |
564 | list); |
565 | list_del(entry: &buf->list); |
566 | vb2_buffer_done(vb: &buf->vb.vb2_buf, state); |
567 | } |
568 | spin_unlock_irqrestore(lock: &pdev->queued_bufs_lock, flags); |
569 | } |
570 | |
571 | #ifdef CONFIG_USB_PWC_DEBUG |
572 | static const char *pwc_sensor_type_to_string(unsigned int sensor_type) |
573 | { |
574 | switch(sensor_type) { |
575 | case 0x00: |
576 | return "Hyundai CMOS sensor" ; |
577 | case 0x20: |
578 | return "Sony CCD sensor + TDA8787" ; |
579 | case 0x2E: |
580 | return "Sony CCD sensor + Exas 98L59" ; |
581 | case 0x2F: |
582 | return "Sony CCD sensor + ADI 9804" ; |
583 | case 0x30: |
584 | return "Sharp CCD sensor + TDA8787" ; |
585 | case 0x3E: |
586 | return "Sharp CCD sensor + Exas 98L59" ; |
587 | case 0x3F: |
588 | return "Sharp CCD sensor + ADI 9804" ; |
589 | case 0x40: |
590 | return "UPA 1021 sensor" ; |
591 | case 0x100: |
592 | return "VGA sensor" ; |
593 | case 0x101: |
594 | return "PAL MR sensor" ; |
595 | default: |
596 | return "unknown type of sensor" ; |
597 | } |
598 | } |
599 | #endif |
600 | |
601 | /***************************************************************************/ |
602 | /* Video4Linux functions */ |
603 | |
604 | static void pwc_video_release(struct v4l2_device *v) |
605 | { |
606 | struct pwc_device *pdev = container_of(v, struct pwc_device, v4l2_dev); |
607 | |
608 | v4l2_ctrl_handler_free(hdl: &pdev->ctrl_handler); |
609 | v4l2_device_unregister(v4l2_dev: &pdev->v4l2_dev); |
610 | kfree(objp: pdev->ctrl_buf); |
611 | kfree(objp: pdev); |
612 | } |
613 | |
614 | /***************************************************************************/ |
615 | /* Videobuf2 operations */ |
616 | |
617 | static int queue_setup(struct vb2_queue *vq, |
618 | unsigned int *nbuffers, unsigned int *nplanes, |
619 | unsigned int sizes[], struct device *alloc_devs[]) |
620 | { |
621 | struct pwc_device *pdev = vb2_get_drv_priv(q: vq); |
622 | int size; |
623 | |
624 | if (*nbuffers < MIN_FRAMES) |
625 | *nbuffers = MIN_FRAMES; |
626 | else if (*nbuffers > MAX_FRAMES) |
627 | *nbuffers = MAX_FRAMES; |
628 | |
629 | *nplanes = 1; |
630 | |
631 | size = pwc_get_size(pdev, MAX_WIDTH, MAX_HEIGHT); |
632 | sizes[0] = PAGE_ALIGN(pwc_image_sizes[size][0] * |
633 | pwc_image_sizes[size][1] * 3 / 2); |
634 | |
635 | return 0; |
636 | } |
637 | |
638 | static int buffer_init(struct vb2_buffer *vb) |
639 | { |
640 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
641 | struct pwc_frame_buf *buf = |
642 | container_of(vbuf, struct pwc_frame_buf, vb); |
643 | |
644 | /* need vmalloc since frame buffer > 128K */ |
645 | buf->data = vzalloc(PWC_FRAME_SIZE); |
646 | if (buf->data == NULL) |
647 | return -ENOMEM; |
648 | |
649 | return 0; |
650 | } |
651 | |
652 | static int buffer_prepare(struct vb2_buffer *vb) |
653 | { |
654 | struct pwc_device *pdev = vb2_get_drv_priv(q: vb->vb2_queue); |
655 | |
656 | /* Don't allow queueing new buffers after device disconnection */ |
657 | if (!pdev->udev) |
658 | return -ENODEV; |
659 | |
660 | return 0; |
661 | } |
662 | |
663 | static void buffer_finish(struct vb2_buffer *vb) |
664 | { |
665 | struct pwc_device *pdev = vb2_get_drv_priv(q: vb->vb2_queue); |
666 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
667 | struct pwc_frame_buf *buf = |
668 | container_of(vbuf, struct pwc_frame_buf, vb); |
669 | |
670 | if (vb->state == VB2_BUF_STATE_DONE) { |
671 | /* |
672 | * Application has called dqbuf and is getting back a buffer |
673 | * we've filled, take the pwc data we've stored in buf->data |
674 | * and decompress it into a usable format, storing the result |
675 | * in the vb2_buffer. |
676 | */ |
677 | pwc_decompress(pdev, fbuf: buf); |
678 | } |
679 | } |
680 | |
681 | static void buffer_cleanup(struct vb2_buffer *vb) |
682 | { |
683 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
684 | struct pwc_frame_buf *buf = |
685 | container_of(vbuf, struct pwc_frame_buf, vb); |
686 | |
687 | vfree(addr: buf->data); |
688 | } |
689 | |
690 | static void buffer_queue(struct vb2_buffer *vb) |
691 | { |
692 | struct pwc_device *pdev = vb2_get_drv_priv(q: vb->vb2_queue); |
693 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
694 | struct pwc_frame_buf *buf = |
695 | container_of(vbuf, struct pwc_frame_buf, vb); |
696 | unsigned long flags = 0; |
697 | |
698 | /* Check the device has not disconnected between prep and queuing */ |
699 | if (!pdev->udev) { |
700 | vb2_buffer_done(vb, state: VB2_BUF_STATE_ERROR); |
701 | return; |
702 | } |
703 | |
704 | spin_lock_irqsave(&pdev->queued_bufs_lock, flags); |
705 | list_add_tail(new: &buf->list, head: &pdev->queued_bufs); |
706 | spin_unlock_irqrestore(lock: &pdev->queued_bufs_lock, flags); |
707 | } |
708 | |
709 | static int start_streaming(struct vb2_queue *vq, unsigned int count) |
710 | { |
711 | struct pwc_device *pdev = vb2_get_drv_priv(q: vq); |
712 | int r; |
713 | |
714 | if (!pdev->udev) |
715 | return -ENODEV; |
716 | |
717 | if (mutex_lock_interruptible(&pdev->v4l2_lock)) |
718 | return -ERESTARTSYS; |
719 | /* Turn on camera and set LEDS on */ |
720 | pwc_camera_power(pdev, power: 1); |
721 | pwc_set_leds(pdev, on_value: leds[0], off_value: leds[1]); |
722 | |
723 | r = pwc_isoc_init(pdev); |
724 | if (r) { |
725 | /* If we failed turn camera and LEDS back off */ |
726 | pwc_set_leds(pdev, on_value: 0, off_value: 0); |
727 | pwc_camera_power(pdev, power: 0); |
728 | /* And cleanup any queued bufs!! */ |
729 | pwc_cleanup_queued_bufs(pdev, state: VB2_BUF_STATE_QUEUED); |
730 | } |
731 | mutex_unlock(lock: &pdev->v4l2_lock); |
732 | |
733 | return r; |
734 | } |
735 | |
736 | static void stop_streaming(struct vb2_queue *vq) |
737 | { |
738 | struct pwc_device *pdev = vb2_get_drv_priv(q: vq); |
739 | |
740 | mutex_lock(&pdev->v4l2_lock); |
741 | if (pdev->udev) { |
742 | pwc_set_leds(pdev, on_value: 0, off_value: 0); |
743 | pwc_camera_power(pdev, power: 0); |
744 | pwc_isoc_cleanup(pdev); |
745 | } |
746 | |
747 | pwc_cleanup_queued_bufs(pdev, state: VB2_BUF_STATE_ERROR); |
748 | if (pdev->fill_buf) |
749 | vb2_buffer_done(vb: &pdev->fill_buf->vb.vb2_buf, |
750 | state: VB2_BUF_STATE_ERROR); |
751 | mutex_unlock(lock: &pdev->v4l2_lock); |
752 | } |
753 | |
754 | static const struct vb2_ops pwc_vb_queue_ops = { |
755 | .queue_setup = queue_setup, |
756 | .buf_init = buffer_init, |
757 | .buf_prepare = buffer_prepare, |
758 | .buf_finish = buffer_finish, |
759 | .buf_cleanup = buffer_cleanup, |
760 | .buf_queue = buffer_queue, |
761 | .start_streaming = start_streaming, |
762 | .stop_streaming = stop_streaming, |
763 | .wait_prepare = vb2_ops_wait_prepare, |
764 | .wait_finish = vb2_ops_wait_finish, |
765 | }; |
766 | |
767 | /***************************************************************************/ |
768 | /* USB functions */ |
769 | |
770 | /* This function gets called when a new device is plugged in or the usb core |
771 | * is loaded. |
772 | */ |
773 | |
774 | static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id *id) |
775 | { |
776 | struct usb_device *udev = interface_to_usbdev(intf); |
777 | struct pwc_device *pdev = NULL; |
778 | int vendor_id, product_id, type_id; |
779 | int rc; |
780 | int features = 0; |
781 | int compression = 0; |
782 | int my_power_save = power_save; |
783 | char serial_number[30], *name; |
784 | |
785 | vendor_id = le16_to_cpu(udev->descriptor.idVendor); |
786 | product_id = le16_to_cpu(udev->descriptor.idProduct); |
787 | |
788 | /* Check if we can handle this device */ |
789 | PWC_DEBUG_PROBE("probe() called [%04X %04X], if %d\n" , |
790 | vendor_id, product_id, |
791 | intf->altsetting->desc.bInterfaceNumber); |
792 | |
793 | /* the interfaces are probed one by one. We are only interested in the |
794 | video interface (0) now. |
795 | Interface 1 is the Audio Control, and interface 2 Audio itself. |
796 | */ |
797 | if (intf->altsetting->desc.bInterfaceNumber > 0) |
798 | return -ENODEV; |
799 | |
800 | if (vendor_id == 0x0471) { |
801 | switch (product_id) { |
802 | case 0x0302: |
803 | PWC_INFO("Philips PCA645VC USB webcam detected.\n" ); |
804 | name = "Philips 645 webcam" ; |
805 | type_id = 645; |
806 | break; |
807 | case 0x0303: |
808 | PWC_INFO("Philips PCA646VC USB webcam detected.\n" ); |
809 | name = "Philips 646 webcam" ; |
810 | type_id = 646; |
811 | break; |
812 | case 0x0304: |
813 | PWC_INFO("Askey VC010 type 2 USB webcam detected.\n" ); |
814 | name = "Askey VC010 webcam" ; |
815 | type_id = 646; |
816 | break; |
817 | case 0x0307: |
818 | PWC_INFO("Philips PCVC675K (Vesta) USB webcam detected.\n" ); |
819 | name = "Philips 675 webcam" ; |
820 | type_id = 675; |
821 | break; |
822 | case 0x0308: |
823 | PWC_INFO("Philips PCVC680K (Vesta Pro) USB webcam detected.\n" ); |
824 | name = "Philips 680 webcam" ; |
825 | type_id = 680; |
826 | break; |
827 | case 0x030C: |
828 | PWC_INFO("Philips PCVC690K (Vesta Pro Scan) USB webcam detected.\n" ); |
829 | name = "Philips 690 webcam" ; |
830 | type_id = 690; |
831 | break; |
832 | case 0x0310: |
833 | PWC_INFO("Philips PCVC730K (ToUCam Fun)/PCVC830 (ToUCam II) USB webcam detected.\n" ); |
834 | name = "Philips 730 webcam" ; |
835 | type_id = 730; |
836 | break; |
837 | case 0x0311: |
838 | PWC_INFO("Philips PCVC740K (ToUCam Pro)/PCVC840 (ToUCam II) USB webcam detected.\n" ); |
839 | name = "Philips 740 webcam" ; |
840 | type_id = 740; |
841 | break; |
842 | case 0x0312: |
843 | PWC_INFO("Philips PCVC750K (ToUCam Pro Scan) USB webcam detected.\n" ); |
844 | name = "Philips 750 webcam" ; |
845 | type_id = 750; |
846 | break; |
847 | case 0x0313: |
848 | PWC_INFO("Philips PCVC720K/40 (ToUCam XS) USB webcam detected.\n" ); |
849 | name = "Philips 720K/40 webcam" ; |
850 | type_id = 720; |
851 | break; |
852 | case 0x0329: |
853 | PWC_INFO("Philips SPC 900NC USB webcam detected.\n" ); |
854 | name = "Philips SPC 900NC webcam" ; |
855 | type_id = 740; |
856 | break; |
857 | case 0x032C: |
858 | PWC_INFO("Philips SPC 880NC USB webcam detected.\n" ); |
859 | name = "Philips SPC 880NC webcam" ; |
860 | type_id = 740; |
861 | break; |
862 | default: |
863 | return -ENODEV; |
864 | } |
865 | } |
866 | else if (vendor_id == 0x069A) { |
867 | switch(product_id) { |
868 | case 0x0001: |
869 | PWC_INFO("Askey VC010 type 1 USB webcam detected.\n" ); |
870 | name = "Askey VC010 webcam" ; |
871 | type_id = 645; |
872 | break; |
873 | default: |
874 | return -ENODEV; |
875 | } |
876 | } |
877 | else if (vendor_id == 0x046d) { |
878 | switch(product_id) { |
879 | case 0x08b0: |
880 | PWC_INFO("Logitech QuickCam Pro 3000 USB webcam detected.\n" ); |
881 | name = "Logitech QuickCam Pro 3000" ; |
882 | type_id = 740; /* CCD sensor */ |
883 | break; |
884 | case 0x08b1: |
885 | PWC_INFO("Logitech QuickCam Notebook Pro USB webcam detected.\n" ); |
886 | name = "Logitech QuickCam Notebook Pro" ; |
887 | type_id = 740; /* CCD sensor */ |
888 | break; |
889 | case 0x08b2: |
890 | PWC_INFO("Logitech QuickCam 4000 Pro USB webcam detected.\n" ); |
891 | name = "Logitech QuickCam Pro 4000" ; |
892 | type_id = 740; /* CCD sensor */ |
893 | if (my_power_save == -1) |
894 | my_power_save = 1; |
895 | break; |
896 | case 0x08b3: |
897 | PWC_INFO("Logitech QuickCam Zoom USB webcam detected.\n" ); |
898 | name = "Logitech QuickCam Zoom" ; |
899 | type_id = 740; /* CCD sensor */ |
900 | break; |
901 | case 0x08B4: |
902 | PWC_INFO("Logitech QuickCam Zoom (new model) USB webcam detected.\n" ); |
903 | name = "Logitech QuickCam Zoom" ; |
904 | type_id = 740; /* CCD sensor */ |
905 | if (my_power_save == -1) |
906 | my_power_save = 1; |
907 | break; |
908 | case 0x08b5: |
909 | PWC_INFO("Logitech QuickCam Orbit/Sphere USB webcam detected.\n" ); |
910 | name = "Logitech QuickCam Orbit" ; |
911 | type_id = 740; /* CCD sensor */ |
912 | if (my_power_save == -1) |
913 | my_power_save = 1; |
914 | features |= FEATURE_MOTOR_PANTILT; |
915 | break; |
916 | case 0x08b6: |
917 | PWC_INFO("Logitech/Cisco VT Camera webcam detected.\n" ); |
918 | name = "Cisco VT Camera" ; |
919 | type_id = 740; /* CCD sensor */ |
920 | break; |
921 | case 0x08b7: |
922 | PWC_INFO("Logitech ViewPort AV 100 webcam detected.\n" ); |
923 | name = "Logitech ViewPort AV 100" ; |
924 | type_id = 740; /* CCD sensor */ |
925 | break; |
926 | case 0x08b8: /* Where this released? */ |
927 | PWC_INFO("Logitech QuickCam detected (reserved ID).\n" ); |
928 | name = "Logitech QuickCam (res.)" ; |
929 | type_id = 730; /* Assuming CMOS */ |
930 | break; |
931 | default: |
932 | return -ENODEV; |
933 | } |
934 | } |
935 | else if (vendor_id == 0x055d) { |
936 | /* I don't know the difference between the C10 and the C30; |
937 | I suppose the difference is the sensor, but both cameras |
938 | work equally well with a type_id of 675 |
939 | */ |
940 | switch(product_id) { |
941 | case 0x9000: |
942 | PWC_INFO("Samsung MPC-C10 USB webcam detected.\n" ); |
943 | name = "Samsung MPC-C10" ; |
944 | type_id = 675; |
945 | break; |
946 | case 0x9001: |
947 | PWC_INFO("Samsung MPC-C30 USB webcam detected.\n" ); |
948 | name = "Samsung MPC-C30" ; |
949 | type_id = 675; |
950 | break; |
951 | case 0x9002: |
952 | PWC_INFO("Samsung SNC-35E (v3.0) USB webcam detected.\n" ); |
953 | name = "Samsung MPC-C30" ; |
954 | type_id = 740; |
955 | break; |
956 | default: |
957 | return -ENODEV; |
958 | } |
959 | } |
960 | else if (vendor_id == 0x041e) { |
961 | switch(product_id) { |
962 | case 0x400c: |
963 | PWC_INFO("Creative Labs Webcam 5 detected.\n" ); |
964 | name = "Creative Labs Webcam 5" ; |
965 | type_id = 730; |
966 | if (my_power_save == -1) |
967 | my_power_save = 1; |
968 | break; |
969 | case 0x4011: |
970 | PWC_INFO("Creative Labs Webcam Pro Ex detected.\n" ); |
971 | name = "Creative Labs Webcam Pro Ex" ; |
972 | type_id = 740; |
973 | break; |
974 | default: |
975 | return -ENODEV; |
976 | } |
977 | } |
978 | else if (vendor_id == 0x04cc) { |
979 | switch(product_id) { |
980 | case 0x8116: |
981 | PWC_INFO("Sotec Afina Eye USB webcam detected.\n" ); |
982 | name = "Sotec Afina Eye" ; |
983 | type_id = 730; |
984 | break; |
985 | default: |
986 | return -ENODEV; |
987 | } |
988 | } |
989 | else if (vendor_id == 0x06be) { |
990 | switch(product_id) { |
991 | case 0x8116: |
992 | /* This is essentially the same cam as the Sotec Afina Eye */ |
993 | PWC_INFO("AME Co. Afina Eye USB webcam detected.\n" ); |
994 | name = "AME Co. Afina Eye" ; |
995 | type_id = 750; |
996 | break; |
997 | default: |
998 | return -ENODEV; |
999 | } |
1000 | |
1001 | } |
1002 | else if (vendor_id == 0x0d81) { |
1003 | switch(product_id) { |
1004 | case 0x1900: |
1005 | PWC_INFO("Visionite VCS-UC300 USB webcam detected.\n" ); |
1006 | name = "Visionite VCS-UC300" ; |
1007 | type_id = 740; /* CCD sensor */ |
1008 | break; |
1009 | case 0x1910: |
1010 | PWC_INFO("Visionite VCS-UM100 USB webcam detected.\n" ); |
1011 | name = "Visionite VCS-UM100" ; |
1012 | type_id = 730; /* CMOS sensor */ |
1013 | break; |
1014 | default: |
1015 | return -ENODEV; |
1016 | } |
1017 | } |
1018 | else |
1019 | return -ENODEV; /* Not any of the know types; but the list keeps growing. */ |
1020 | |
1021 | if (my_power_save == -1) |
1022 | my_power_save = 0; |
1023 | |
1024 | memset(serial_number, 0, 30); |
1025 | usb_string(dev: udev, index: udev->descriptor.iSerialNumber, buf: serial_number, size: 29); |
1026 | PWC_DEBUG_PROBE("Device serial number is %s\n" , serial_number); |
1027 | |
1028 | if (udev->descriptor.bNumConfigurations > 1) |
1029 | PWC_WARNING("Warning: more than 1 configuration available.\n" ); |
1030 | |
1031 | /* Allocate structure, initialize pointers, mutexes, etc. and link it to the usb_device */ |
1032 | pdev = kzalloc(size: sizeof(struct pwc_device), GFP_KERNEL); |
1033 | if (pdev == NULL) { |
1034 | PWC_ERROR("Oops, could not allocate memory for pwc_device.\n" ); |
1035 | return -ENOMEM; |
1036 | } |
1037 | pdev->type = type_id; |
1038 | pdev->features = features; |
1039 | pwc_construct(pdev); /* set min/max sizes correct */ |
1040 | |
1041 | mutex_init(&pdev->v4l2_lock); |
1042 | mutex_init(&pdev->vb_queue_lock); |
1043 | spin_lock_init(&pdev->queued_bufs_lock); |
1044 | INIT_LIST_HEAD(list: &pdev->queued_bufs); |
1045 | |
1046 | pdev->udev = udev; |
1047 | pdev->power_save = my_power_save; |
1048 | |
1049 | /* Init videobuf2 queue structure */ |
1050 | pdev->vb_queue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
1051 | pdev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; |
1052 | pdev->vb_queue.drv_priv = pdev; |
1053 | pdev->vb_queue.buf_struct_size = sizeof(struct pwc_frame_buf); |
1054 | pdev->vb_queue.ops = &pwc_vb_queue_ops; |
1055 | pdev->vb_queue.mem_ops = &vb2_vmalloc_memops; |
1056 | pdev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
1057 | rc = vb2_queue_init(q: &pdev->vb_queue); |
1058 | if (rc < 0) { |
1059 | PWC_ERROR("Oops, could not initialize vb2 queue.\n" ); |
1060 | goto err_free_mem; |
1061 | } |
1062 | |
1063 | /* Init video_device structure */ |
1064 | pdev->vdev = pwc_template; |
1065 | strscpy(pdev->vdev.name, name, sizeof(pdev->vdev.name)); |
1066 | pdev->vdev.queue = &pdev->vb_queue; |
1067 | pdev->vdev.queue->lock = &pdev->vb_queue_lock; |
1068 | video_set_drvdata(vdev: &pdev->vdev, data: pdev); |
1069 | |
1070 | pdev->release = le16_to_cpu(udev->descriptor.bcdDevice); |
1071 | PWC_DEBUG_PROBE("Release: %04x\n" , pdev->release); |
1072 | |
1073 | /* Allocate USB command buffers */ |
1074 | pdev->ctrl_buf = kmalloc(size: sizeof(pdev->cmd_buf), GFP_KERNEL); |
1075 | if (!pdev->ctrl_buf) { |
1076 | PWC_ERROR("Oops, could not allocate memory for pwc_device.\n" ); |
1077 | rc = -ENOMEM; |
1078 | goto err_free_mem; |
1079 | } |
1080 | |
1081 | #ifdef CONFIG_USB_PWC_DEBUG |
1082 | /* Query sensor type */ |
1083 | if (pwc_get_cmos_sensor(pdev, sensor: &rc) >= 0) { |
1084 | PWC_DEBUG_OPEN("This %s camera is equipped with a %s (%d).\n" , |
1085 | pdev->vdev.name, |
1086 | pwc_sensor_type_to_string(rc), rc); |
1087 | } |
1088 | #endif |
1089 | |
1090 | /* Set the leds off */ |
1091 | pwc_set_leds(pdev, on_value: 0, off_value: 0); |
1092 | |
1093 | /* Setup initial videomode */ |
1094 | rc = pwc_set_video_mode(pdev, MAX_WIDTH, MAX_HEIGHT, |
1095 | V4L2_PIX_FMT_YUV420, frames: 30, compression: &compression, send_to_cam: 1); |
1096 | if (rc) |
1097 | goto err_free_mem; |
1098 | |
1099 | /* Register controls (and read default values from camera */ |
1100 | rc = pwc_init_controls(pdev); |
1101 | if (rc) { |
1102 | PWC_ERROR("Failed to register v4l2 controls (%d).\n" , rc); |
1103 | goto err_free_mem; |
1104 | } |
1105 | |
1106 | /* And powerdown the camera until streaming starts */ |
1107 | pwc_camera_power(pdev, power: 0); |
1108 | |
1109 | /* Register the v4l2_device structure */ |
1110 | pdev->v4l2_dev.release = pwc_video_release; |
1111 | rc = v4l2_device_register(dev: &intf->dev, v4l2_dev: &pdev->v4l2_dev); |
1112 | if (rc) { |
1113 | PWC_ERROR("Failed to register v4l2-device (%d).\n" , rc); |
1114 | goto err_free_controls; |
1115 | } |
1116 | |
1117 | pdev->v4l2_dev.ctrl_handler = &pdev->ctrl_handler; |
1118 | pdev->vdev.v4l2_dev = &pdev->v4l2_dev; |
1119 | pdev->vdev.lock = &pdev->v4l2_lock; |
1120 | pdev->vdev.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | |
1121 | V4L2_CAP_READWRITE; |
1122 | |
1123 | rc = video_register_device(vdev: &pdev->vdev, type: VFL_TYPE_VIDEO, nr: -1); |
1124 | if (rc < 0) { |
1125 | PWC_ERROR("Failed to register as video device (%d).\n" , rc); |
1126 | goto err_unregister_v4l2_dev; |
1127 | } |
1128 | PWC_INFO("Registered as %s.\n" , video_device_node_name(&pdev->vdev)); |
1129 | |
1130 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV |
1131 | /* register webcam snapshot button input device */ |
1132 | pdev->button_dev = input_allocate_device(); |
1133 | if (!pdev->button_dev) { |
1134 | rc = -ENOMEM; |
1135 | goto err_video_unreg; |
1136 | } |
1137 | |
1138 | usb_make_path(dev: udev, buf: pdev->button_phys, size: sizeof(pdev->button_phys)); |
1139 | strlcat(p: pdev->button_phys, q: "/input0" , avail: sizeof(pdev->button_phys)); |
1140 | |
1141 | pdev->button_dev->name = "PWC snapshot button" ; |
1142 | pdev->button_dev->phys = pdev->button_phys; |
1143 | usb_to_input_id(dev: pdev->udev, id: &pdev->button_dev->id); |
1144 | pdev->button_dev->dev.parent = &pdev->udev->dev; |
1145 | pdev->button_dev->evbit[0] = BIT_MASK(EV_KEY); |
1146 | pdev->button_dev->keybit[BIT_WORD(KEY_CAMERA)] = BIT_MASK(KEY_CAMERA); |
1147 | |
1148 | rc = input_register_device(pdev->button_dev); |
1149 | if (rc) { |
1150 | input_free_device(dev: pdev->button_dev); |
1151 | pdev->button_dev = NULL; |
1152 | goto err_video_unreg; |
1153 | } |
1154 | #endif |
1155 | |
1156 | return 0; |
1157 | |
1158 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV |
1159 | err_video_unreg: |
1160 | video_unregister_device(vdev: &pdev->vdev); |
1161 | #endif |
1162 | err_unregister_v4l2_dev: |
1163 | v4l2_device_unregister(v4l2_dev: &pdev->v4l2_dev); |
1164 | err_free_controls: |
1165 | v4l2_ctrl_handler_free(hdl: &pdev->ctrl_handler); |
1166 | err_free_mem: |
1167 | kfree(objp: pdev->ctrl_buf); |
1168 | kfree(objp: pdev); |
1169 | return rc; |
1170 | } |
1171 | |
1172 | /* The user yanked out the cable... */ |
1173 | static void usb_pwc_disconnect(struct usb_interface *intf) |
1174 | { |
1175 | struct v4l2_device *v = usb_get_intfdata(intf); |
1176 | struct pwc_device *pdev = container_of(v, struct pwc_device, v4l2_dev); |
1177 | |
1178 | mutex_lock(&pdev->vb_queue_lock); |
1179 | mutex_lock(&pdev->v4l2_lock); |
1180 | /* No need to keep the urbs around after disconnection */ |
1181 | if (pdev->vb_queue.streaming) |
1182 | pwc_isoc_cleanup(pdev); |
1183 | pdev->udev = NULL; |
1184 | |
1185 | v4l2_device_disconnect(v4l2_dev: &pdev->v4l2_dev); |
1186 | video_unregister_device(vdev: &pdev->vdev); |
1187 | mutex_unlock(lock: &pdev->v4l2_lock); |
1188 | mutex_unlock(lock: &pdev->vb_queue_lock); |
1189 | |
1190 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV |
1191 | if (pdev->button_dev) |
1192 | input_unregister_device(pdev->button_dev); |
1193 | #endif |
1194 | |
1195 | v4l2_device_put(v4l2_dev: &pdev->v4l2_dev); |
1196 | } |
1197 | |
1198 | |
1199 | /* |
1200 | * Initialization code & module stuff |
1201 | */ |
1202 | |
1203 | static unsigned int leds_nargs; |
1204 | |
1205 | #ifdef CONFIG_USB_PWC_DEBUG |
1206 | module_param_named(trace, pwc_trace, int, 0644); |
1207 | #endif |
1208 | module_param(power_save, int, 0644); |
1209 | module_param_array(leds, int, &leds_nargs, 0444); |
1210 | |
1211 | #ifdef CONFIG_USB_PWC_DEBUG |
1212 | MODULE_PARM_DESC(trace, "For debugging purposes" ); |
1213 | #endif |
1214 | MODULE_PARM_DESC(power_save, "Turn power saving for new cameras on or off" ); |
1215 | MODULE_PARM_DESC(leds, "LED on,off time in milliseconds" ); |
1216 | |
1217 | MODULE_DESCRIPTION("Philips & OEM USB webcam driver" ); |
1218 | MODULE_AUTHOR("Luc Saillard <luc@saillard.org>" ); |
1219 | MODULE_LICENSE("GPL" ); |
1220 | MODULE_ALIAS("pwcx" ); |
1221 | MODULE_VERSION( PWC_VERSION ); |
1222 | |
1223 | module_usb_driver(pwc_driver); |
1224 | |