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1da177e4 LT |
1 | /* Linux driver for Philips webcam |
2 | USB and Video4Linux interface part. | |
3 | (C) 1999-2004 Nemosoft Unv. | |
2b455db6 | 4 | (C) 2004-2006 Luc Saillard (luc@saillard.org) |
1da177e4 LT |
5 | |
6 | NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx | |
7 | driver and thus may have bugs that are not present in the original version. | |
8 | Please send bug reports and support requests to <luc@saillard.org>. | |
9 | The decompression routines have been implemented by reverse-engineering the | |
10 | Nemosoft binary pwcx module. Caveat emptor. | |
11 | ||
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
25 | ||
26 | */ | |
27 | ||
d56410e0 | 28 | /* |
1da177e4 LT |
29 | This code forms the interface between the USB layers and the Philips |
30 | specific stuff. Some adanved stuff of the driver falls under an | |
31 | NDA, signed between me and Philips B.V., Eindhoven, the Netherlands, and | |
d56410e0 | 32 | is thus not distributed in source form. The binary pwcx.o module |
1da177e4 | 33 | contains the code that falls under the NDA. |
d56410e0 MCC |
34 | |
35 | In case you're wondering: 'pwc' stands for "Philips WebCam", but | |
1da177e4 LT |
36 | I really didn't want to type 'philips_web_cam' every time (I'm lazy as |
37 | any Linux kernel hacker, but I don't like uncomprehensible abbreviations | |
38 | without explanation). | |
d56410e0 | 39 | |
1da177e4 LT |
40 | Oh yes, convention: to disctinguish between all the various pointers to |
41 | device-structures, I use these names for the pointer variables: | |
42 | udev: struct usb_device * | |
9a7b2d1f | 43 | vdev: struct video_device (member of pwc_dev) |
1da177e4 LT |
44 | pdev: struct pwc_devive * |
45 | */ | |
46 | ||
47 | /* Contributors: | |
48 | - Alvarado: adding whitebalance code | |
49 | - Alistar Moire: QuickCam 3000 Pro device/product ID | |
50 | - Tony Hoyle: Creative Labs Webcam 5 device/product ID | |
51 | - Mark Burazin: solving hang in VIDIOCSYNC when camera gets unplugged | |
52 | - Jk Fang: Sotec Afina Eye ID | |
53 | - Xavier Roche: QuickCam Pro 4000 ID | |
54 | - Jens Knudsen: QuickCam Zoom ID | |
55 | - J. Debert: QuickCam for Notebooks ID | |
e32a7ecc | 56 | - Pham Thanh Nam: webcam snapshot button as an event input device |
1da177e4 LT |
57 | */ |
58 | ||
59 | #include <linux/errno.h> | |
60 | #include <linux/init.h> | |
61 | #include <linux/mm.h> | |
62 | #include <linux/module.h> | |
63 | #include <linux/poll.h> | |
64 | #include <linux/slab.h> | |
e32a7ecc NPT |
65 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV |
66 | #include <linux/usb/input.h> | |
67 | #endif | |
1da177e4 LT |
68 | #include <linux/vmalloc.h> |
69 | #include <asm/io.h> | |
2d8d7762 | 70 | #include <linux/kernel.h> /* simple_strtol() */ |
1da177e4 LT |
71 | |
72 | #include "pwc.h" | |
1da177e4 LT |
73 | #include "pwc-kiara.h" |
74 | #include "pwc-timon.h" | |
2b455db6 LS |
75 | #include "pwc-dec23.h" |
76 | #include "pwc-dec1.h" | |
1da177e4 LT |
77 | #include "pwc-uncompress.h" |
78 | ||
79 | /* Function prototypes and driver templates */ | |
80 | ||
81 | /* hotplug device table support */ | |
2b455db6 | 82 | static const struct usb_device_id pwc_device_table [] = { |
1da177e4 LT |
83 | { USB_DEVICE(0x0471, 0x0302) }, /* Philips models */ |
84 | { USB_DEVICE(0x0471, 0x0303) }, | |
85 | { USB_DEVICE(0x0471, 0x0304) }, | |
86 | { USB_DEVICE(0x0471, 0x0307) }, | |
87 | { USB_DEVICE(0x0471, 0x0308) }, | |
88 | { USB_DEVICE(0x0471, 0x030C) }, | |
89 | { USB_DEVICE(0x0471, 0x0310) }, | |
2b455db6 | 90 | { USB_DEVICE(0x0471, 0x0311) }, /* Philips ToUcam PRO II */ |
1da177e4 LT |
91 | { USB_DEVICE(0x0471, 0x0312) }, |
92 | { USB_DEVICE(0x0471, 0x0313) }, /* the 'new' 720K */ | |
2b455db6 | 93 | { USB_DEVICE(0x0471, 0x0329) }, /* Philips SPC 900NC PC Camera */ |
1da177e4 LT |
94 | { USB_DEVICE(0x069A, 0x0001) }, /* Askey */ |
95 | { USB_DEVICE(0x046D, 0x08B0) }, /* Logitech QuickCam Pro 3000 */ | |
96 | { USB_DEVICE(0x046D, 0x08B1) }, /* Logitech QuickCam Notebook Pro */ | |
97 | { USB_DEVICE(0x046D, 0x08B2) }, /* Logitech QuickCam Pro 4000 */ | |
98 | { USB_DEVICE(0x046D, 0x08B3) }, /* Logitech QuickCam Zoom (old model) */ | |
99 | { USB_DEVICE(0x046D, 0x08B4) }, /* Logitech QuickCam Zoom (new model) */ | |
100 | { USB_DEVICE(0x046D, 0x08B5) }, /* Logitech QuickCam Orbit/Sphere */ | |
6b1ce3c1 MCC |
101 | { USB_DEVICE(0x046D, 0x08B6) }, /* Cisco VT Camera */ |
102 | { USB_DEVICE(0x046D, 0x08B7) }, /* Logitech ViewPort AV 100 */ | |
1da177e4 | 103 | { USB_DEVICE(0x046D, 0x08B8) }, /* Logitech (reserved) */ |
2b455db6 LS |
104 | { USB_DEVICE(0x055D, 0x9000) }, /* Samsung MPC-C10 */ |
105 | { USB_DEVICE(0x055D, 0x9001) }, /* Samsung MPC-C30 */ | |
106 | { USB_DEVICE(0x055D, 0x9002) }, /* Samsung SNC-35E (Ver3.0) */ | |
1da177e4 LT |
107 | { USB_DEVICE(0x041E, 0x400C) }, /* Creative Webcam 5 */ |
108 | { USB_DEVICE(0x041E, 0x4011) }, /* Creative Webcam Pro Ex */ | |
109 | { USB_DEVICE(0x04CC, 0x8116) }, /* Afina Eye */ | |
110 | { USB_DEVICE(0x06BE, 0x8116) }, /* new Afina Eye */ | |
111 | { USB_DEVICE(0x0d81, 0x1910) }, /* Visionite */ | |
112 | { USB_DEVICE(0x0d81, 0x1900) }, | |
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 | ||
120 | static struct usb_driver pwc_driver = { | |
1da177e4 LT |
121 | .name = "Philips webcam", /* name */ |
122 | .id_table = pwc_device_table, | |
123 | .probe = usb_pwc_probe, /* probe() */ | |
124 | .disconnect = usb_pwc_disconnect, /* disconnect() */ | |
125 | }; | |
126 | ||
127 | #define MAX_DEV_HINTS 20 | |
128 | #define MAX_ISOC_ERRORS 20 | |
129 | ||
130 | static int default_size = PSZ_QCIF; | |
131 | static int default_fps = 10; | |
132 | static int default_fbufs = 3; /* Default number of frame buffers */ | |
b930e1d8 | 133 | int pwc_mbufs = 2; /* Default number of mmap() buffers */ |
05ad3907 | 134 | #ifdef CONFIG_USB_PWC_DEBUG |
b930e1d8 | 135 | int pwc_trace = PWC_DEBUG_LEVEL; |
2b455db6 | 136 | #endif |
ff699e6b DSL |
137 | static int power_save; |
138 | static int led_on = 100, led_off; /* defaults to LED that is on while in use */ | |
b20c3cf0 | 139 | static int pwc_preferred_compression = 1; /* 0..3 = uncompressed..high */ |
1da177e4 LT |
140 | static struct { |
141 | int type; | |
142 | char serial_number[30]; | |
143 | int device_node; | |
144 | struct pwc_device *pdev; | |
145 | } device_hint[MAX_DEV_HINTS]; | |
146 | ||
147 | /***/ | |
148 | ||
bec43661 HV |
149 | static int pwc_video_open(struct file *file); |
150 | static int pwc_video_close(struct file *file); | |
2b455db6 | 151 | static ssize_t pwc_video_read(struct file *file, char __user *buf, |
1da177e4 LT |
152 | size_t count, loff_t *ppos); |
153 | static unsigned int pwc_video_poll(struct file *file, poll_table *wait); | |
1da177e4 | 154 | static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma); |
9a7b2d1f | 155 | static void pwc_video_release(struct video_device *vfd); |
1da177e4 | 156 | |
bec43661 | 157 | static const struct v4l2_file_operations pwc_fops = { |
1da177e4 LT |
158 | .owner = THIS_MODULE, |
159 | .open = pwc_video_open, | |
160 | .release = pwc_video_close, | |
161 | .read = pwc_video_read, | |
162 | .poll = pwc_video_poll, | |
163 | .mmap = pwc_video_mmap, | |
afa38521 | 164 | .unlocked_ioctl = video_ioctl2, |
1da177e4 LT |
165 | }; |
166 | static struct video_device pwc_template = { | |
1da177e4 | 167 | .name = "Philips Webcam", /* Filled in later */ |
9a7b2d1f | 168 | .release = pwc_video_release, |
1da177e4 | 169 | .fops = &pwc_fops, |
9a7b2d1f | 170 | .ioctl_ops = &pwc_ioctl_ops, |
1da177e4 LT |
171 | }; |
172 | ||
1da177e4 LT |
173 | /***************************************************************************/ |
174 | /* Private functions */ | |
175 | ||
176 | /* Here we want the physical address of the memory. | |
177 | * This is used when initializing the contents of the area. | |
178 | */ | |
1da177e4 | 179 | |
1da177e4 | 180 | |
2b455db6 LS |
181 | |
182 | static void *pwc_rvmalloc(unsigned long size) | |
1da177e4 LT |
183 | { |
184 | void * mem; | |
185 | unsigned long adr; | |
186 | ||
d56410e0 | 187 | mem=vmalloc_32(size); |
2b455db6 LS |
188 | if (!mem) |
189 | return NULL; | |
190 | ||
191 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
192 | adr=(unsigned long) mem; | |
193 | while (size > 0) | |
194 | { | |
195 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
196 | adr += PAGE_SIZE; | |
197 | size -= PAGE_SIZE; | |
198 | } | |
1da177e4 LT |
199 | return mem; |
200 | } | |
201 | ||
2b455db6 | 202 | static void pwc_rvfree(void * mem, unsigned long size) |
1da177e4 | 203 | { |
d56410e0 | 204 | unsigned long adr; |
1da177e4 | 205 | |
2b455db6 LS |
206 | if (!mem) |
207 | return; | |
208 | ||
209 | adr=(unsigned long) mem; | |
210 | while ((long) size > 0) | |
211 | { | |
212 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
213 | adr += PAGE_SIZE; | |
214 | size -= PAGE_SIZE; | |
215 | } | |
216 | vfree(mem); | |
1da177e4 LT |
217 | } |
218 | ||
219 | ||
220 | ||
221 | ||
222 | static int pwc_allocate_buffers(struct pwc_device *pdev) | |
223 | { | |
2b455db6 | 224 | int i, err; |
1da177e4 LT |
225 | void *kbuf; |
226 | ||
2b455db6 | 227 | PWC_DEBUG_MEMORY(">> pwc_allocate_buffers(pdev = 0x%p)\n", pdev); |
1da177e4 | 228 | |
2b455db6 | 229 | /* Allocate Isochronuous pipe buffers */ |
1da177e4 LT |
230 | for (i = 0; i < MAX_ISO_BUFS; i++) { |
231 | if (pdev->sbuf[i].data == NULL) { | |
2b455db6 | 232 | kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL); |
1da177e4 | 233 | if (kbuf == NULL) { |
2b455db6 | 234 | PWC_ERROR("Failed to allocate iso buffer %d.\n", i); |
1da177e4 LT |
235 | return -ENOMEM; |
236 | } | |
2b455db6 | 237 | PWC_DEBUG_MEMORY("Allocated iso buffer at %p.\n", kbuf); |
1da177e4 | 238 | pdev->sbuf[i].data = kbuf; |
1da177e4 LT |
239 | } |
240 | } | |
241 | ||
242 | /* Allocate frame buffer structure */ | |
243 | if (pdev->fbuf == NULL) { | |
2b455db6 | 244 | kbuf = kzalloc(default_fbufs * sizeof(struct pwc_frame_buf), GFP_KERNEL); |
1da177e4 | 245 | if (kbuf == NULL) { |
2b455db6 | 246 | PWC_ERROR("Failed to allocate frame buffer structure.\n"); |
1da177e4 LT |
247 | return -ENOMEM; |
248 | } | |
2b455db6 | 249 | PWC_DEBUG_MEMORY("Allocated frame buffer structure at %p.\n", kbuf); |
1da177e4 | 250 | pdev->fbuf = kbuf; |
1da177e4 | 251 | } |
2b455db6 | 252 | |
1da177e4 LT |
253 | /* create frame buffers, and make circular ring */ |
254 | for (i = 0; i < default_fbufs; i++) { | |
255 | if (pdev->fbuf[i].data == NULL) { | |
101b25b5 | 256 | kbuf = vzalloc(PWC_FRAME_SIZE); /* need vmalloc since frame buffer > 128K */ |
1da177e4 | 257 | if (kbuf == NULL) { |
2b455db6 | 258 | PWC_ERROR("Failed to allocate frame buffer %d.\n", i); |
1da177e4 LT |
259 | return -ENOMEM; |
260 | } | |
2b455db6 | 261 | PWC_DEBUG_MEMORY("Allocated frame buffer %d at %p.\n", i, kbuf); |
1da177e4 | 262 | pdev->fbuf[i].data = kbuf; |
1da177e4 LT |
263 | } |
264 | } | |
d56410e0 | 265 | |
1da177e4 | 266 | /* Allocate decompressor table space */ |
2b455db6 LS |
267 | if (DEVICE_USE_CODEC1(pdev->type)) |
268 | err = pwc_dec1_alloc(pdev); | |
269 | else | |
270 | err = pwc_dec23_alloc(pdev); | |
271 | ||
272 | if (err) { | |
273 | PWC_ERROR("Failed to allocate decompress table.\n"); | |
274 | return err; | |
275 | } | |
d56410e0 | 276 | |
1da177e4 | 277 | /* Allocate image buffer; double buffer for mmap() */ |
2b455db6 | 278 | kbuf = pwc_rvmalloc(pwc_mbufs * pdev->len_per_image); |
1da177e4 | 279 | if (kbuf == NULL) { |
2b455db6 LS |
280 | PWC_ERROR("Failed to allocate image buffer(s). needed (%d)\n", |
281 | pwc_mbufs * pdev->len_per_image); | |
1da177e4 LT |
282 | return -ENOMEM; |
283 | } | |
2b455db6 | 284 | PWC_DEBUG_MEMORY("Allocated image buffer at %p.\n", kbuf); |
1da177e4 | 285 | pdev->image_data = kbuf; |
2b455db6 LS |
286 | for (i = 0; i < pwc_mbufs; i++) { |
287 | pdev->images[i].offset = i * pdev->len_per_image; | |
288 | pdev->images[i].vma_use_count = 0; | |
289 | } | |
290 | for (; i < MAX_IMAGES; i++) { | |
291 | pdev->images[i].offset = 0; | |
292 | } | |
1da177e4 LT |
293 | |
294 | kbuf = NULL; | |
d56410e0 | 295 | |
2b455db6 | 296 | PWC_DEBUG_MEMORY("<< pwc_allocate_buffers()\n"); |
1da177e4 LT |
297 | return 0; |
298 | } | |
299 | ||
300 | static void pwc_free_buffers(struct pwc_device *pdev) | |
301 | { | |
302 | int i; | |
303 | ||
2b455db6 | 304 | PWC_DEBUG_MEMORY("Entering free_buffers(%p).\n", pdev); |
1da177e4 | 305 | |
1da177e4 LT |
306 | /* Release Iso-pipe buffers */ |
307 | for (i = 0; i < MAX_ISO_BUFS; i++) | |
308 | if (pdev->sbuf[i].data != NULL) { | |
2b455db6 | 309 | PWC_DEBUG_MEMORY("Freeing ISO buffer at %p.\n", pdev->sbuf[i].data); |
1da177e4 LT |
310 | kfree(pdev->sbuf[i].data); |
311 | pdev->sbuf[i].data = NULL; | |
312 | } | |
313 | ||
314 | /* The same for frame buffers */ | |
315 | if (pdev->fbuf != NULL) { | |
316 | for (i = 0; i < default_fbufs; i++) { | |
317 | if (pdev->fbuf[i].data != NULL) { | |
2b455db6 | 318 | PWC_DEBUG_MEMORY("Freeing frame buffer %d at %p.\n", i, pdev->fbuf[i].data); |
1da177e4 LT |
319 | vfree(pdev->fbuf[i].data); |
320 | pdev->fbuf[i].data = NULL; | |
321 | } | |
322 | } | |
323 | kfree(pdev->fbuf); | |
324 | pdev->fbuf = NULL; | |
325 | } | |
326 | ||
327 | /* Intermediate decompression buffer & tables */ | |
328 | if (pdev->decompress_data != NULL) { | |
2b455db6 | 329 | PWC_DEBUG_MEMORY("Freeing decompression buffer at %p.\n", pdev->decompress_data); |
1da177e4 LT |
330 | kfree(pdev->decompress_data); |
331 | pdev->decompress_data = NULL; | |
332 | } | |
1da177e4 LT |
333 | |
334 | /* Release image buffers */ | |
335 | if (pdev->image_data != NULL) { | |
2b455db6 LS |
336 | PWC_DEBUG_MEMORY("Freeing image buffer at %p.\n", pdev->image_data); |
337 | pwc_rvfree(pdev->image_data, pwc_mbufs * pdev->len_per_image); | |
1da177e4 LT |
338 | } |
339 | pdev->image_data = NULL; | |
d56410e0 | 340 | |
2b455db6 | 341 | PWC_DEBUG_MEMORY("Leaving free_buffers().\n"); |
1da177e4 LT |
342 | } |
343 | ||
d56410e0 | 344 | /* The frame & image buffer mess. |
1da177e4 LT |
345 | |
346 | Yes, this is a mess. Well, it used to be simple, but alas... In this | |
347 | module, 3 buffers schemes are used to get the data from the USB bus to | |
348 | the user program. The first scheme involves the ISO buffers (called thus | |
349 | since they transport ISO data from the USB controller), and not really | |
d56410e0 | 350 | interesting. Suffices to say the data from this buffer is quickly |
1da177e4 LT |
351 | gathered in an interrupt handler (pwc_isoc_handler) and placed into the |
352 | frame buffer. | |
353 | ||
354 | The frame buffer is the second scheme, and is the central element here. | |
355 | It collects the data from a single frame from the camera (hence, the | |
356 | name). Frames are delimited by the USB camera with a short USB packet, | |
357 | so that's easy to detect. The frame buffers form a list that is filled | |
358 | by the camera+USB controller and drained by the user process through | |
359 | either read() or mmap(). | |
360 | ||
361 | The image buffer is the third scheme, in which frames are decompressed | |
362 | and converted into planar format. For mmap() there is more than | |
363 | one image buffer available. | |
364 | ||
365 | The frame buffers provide the image buffering. In case the user process | |
366 | is a bit slow, this introduces lag and some undesired side-effects. | |
367 | The problem arises when the frame buffer is full. I used to drop the last | |
368 | frame, which makes the data in the queue stale very quickly. But dropping | |
369 | the frame at the head of the queue proved to be a litte bit more difficult. | |
370 | I tried a circular linked scheme, but this introduced more problems than | |
371 | it solved. | |
372 | ||
373 | Because filling and draining are completely asynchronous processes, this | |
374 | requires some fiddling with pointers and mutexes. | |
375 | ||
376 | Eventually, I came up with a system with 2 lists: an 'empty' frame list | |
377 | and a 'full' frame list: | |
378 | * Initially, all frame buffers but one are on the 'empty' list; the one | |
379 | remaining buffer is our initial fill frame. | |
d56410e0 MCC |
380 | * If a frame is needed for filling, we try to take it from the 'empty' |
381 | list, unless that list is empty, in which case we take the buffer at | |
1da177e4 LT |
382 | the head of the 'full' list. |
383 | * When our fill buffer has been filled, it is appended to the 'full' | |
384 | list. | |
385 | * If a frame is needed by read() or mmap(), it is taken from the head of | |
386 | the 'full' list, handled, and then appended to the 'empty' list. If no | |
387 | buffer is present on the 'full' list, we wait. | |
388 | The advantage is that the buffer that is currently being decompressed/ | |
389 | converted, is on neither list, and thus not in our way (any other scheme | |
390 | I tried had the problem of old data lingering in the queue). | |
391 | ||
392 | Whatever strategy you choose, it always remains a tradeoff: with more | |
393 | frame buffers the chances of a missed frame are reduced. On the other | |
394 | hand, on slower machines it introduces lag because the queue will | |
395 | always be full. | |
396 | */ | |
397 | ||
398 | /** | |
399 | \brief Find next frame buffer to fill. Take from empty or full list, whichever comes first. | |
400 | */ | |
2b455db6 | 401 | static int pwc_next_fill_frame(struct pwc_device *pdev) |
1da177e4 LT |
402 | { |
403 | int ret; | |
404 | unsigned long flags; | |
405 | ||
406 | ret = 0; | |
407 | spin_lock_irqsave(&pdev->ptrlock, flags); | |
408 | if (pdev->fill_frame != NULL) { | |
409 | /* append to 'full' list */ | |
410 | if (pdev->full_frames == NULL) { | |
411 | pdev->full_frames = pdev->fill_frame; | |
412 | pdev->full_frames_tail = pdev->full_frames; | |
413 | } | |
414 | else { | |
415 | pdev->full_frames_tail->next = pdev->fill_frame; | |
416 | pdev->full_frames_tail = pdev->fill_frame; | |
417 | } | |
418 | } | |
419 | if (pdev->empty_frames != NULL) { | |
420 | /* We have empty frames available. That's easy */ | |
421 | pdev->fill_frame = pdev->empty_frames; | |
422 | pdev->empty_frames = pdev->empty_frames->next; | |
423 | } | |
424 | else { | |
425 | /* Hmm. Take it from the full list */ | |
1da177e4 LT |
426 | /* sanity check */ |
427 | if (pdev->full_frames == NULL) { | |
2b455db6 | 428 | PWC_ERROR("Neither empty or full frames available!\n"); |
1da177e4 LT |
429 | spin_unlock_irqrestore(&pdev->ptrlock, flags); |
430 | return -EINVAL; | |
431 | } | |
1da177e4 LT |
432 | pdev->fill_frame = pdev->full_frames; |
433 | pdev->full_frames = pdev->full_frames->next; | |
434 | ret = 1; | |
435 | } | |
436 | pdev->fill_frame->next = NULL; | |
1da177e4 LT |
437 | spin_unlock_irqrestore(&pdev->ptrlock, flags); |
438 | return ret; | |
439 | } | |
440 | ||
441 | ||
442 | /** | |
443 | \brief Reset all buffers, pointers and lists, except for the image_used[] buffer. | |
444 | ||
445 | If the image_used[] buffer is cleared too, mmap()/VIDIOCSYNC will run into trouble. | |
446 | */ | |
447 | static void pwc_reset_buffers(struct pwc_device *pdev) | |
448 | { | |
449 | int i; | |
450 | unsigned long flags; | |
451 | ||
645635b0 | 452 | PWC_DEBUG_MEMORY(">> %s __enter__\n", __func__); |
2b455db6 | 453 | |
1da177e4 LT |
454 | spin_lock_irqsave(&pdev->ptrlock, flags); |
455 | pdev->full_frames = NULL; | |
456 | pdev->full_frames_tail = NULL; | |
457 | for (i = 0; i < default_fbufs; i++) { | |
458 | pdev->fbuf[i].filled = 0; | |
459 | if (i > 0) | |
460 | pdev->fbuf[i].next = &pdev->fbuf[i - 1]; | |
461 | else | |
462 | pdev->fbuf->next = NULL; | |
463 | } | |
464 | pdev->empty_frames = &pdev->fbuf[default_fbufs - 1]; | |
465 | pdev->empty_frames_tail = pdev->fbuf; | |
466 | pdev->read_frame = NULL; | |
467 | pdev->fill_frame = pdev->empty_frames; | |
468 | pdev->empty_frames = pdev->empty_frames->next; | |
469 | ||
470 | pdev->image_read_pos = 0; | |
471 | pdev->fill_image = 0; | |
472 | spin_unlock_irqrestore(&pdev->ptrlock, flags); | |
2b455db6 | 473 | |
645635b0 | 474 | PWC_DEBUG_MEMORY("<< %s __leaving__\n", __func__); |
1da177e4 LT |
475 | } |
476 | ||
477 | ||
478 | /** | |
479 | \brief Do all the handling for getting one frame: get pointer, decompress, advance pointers. | |
480 | */ | |
2b455db6 | 481 | int pwc_handle_frame(struct pwc_device *pdev) |
1da177e4 LT |
482 | { |
483 | int ret = 0; | |
484 | unsigned long flags; | |
485 | ||
486 | spin_lock_irqsave(&pdev->ptrlock, flags); | |
487 | /* First grab our read_frame; this is removed from all lists, so | |
488 | we can release the lock after this without problems */ | |
489 | if (pdev->read_frame != NULL) { | |
490 | /* This can't theoretically happen */ | |
2b455db6 LS |
491 | PWC_ERROR("Huh? Read frame still in use?\n"); |
492 | spin_unlock_irqrestore(&pdev->ptrlock, flags); | |
493 | return ret; | |
494 | } | |
495 | ||
496 | ||
497 | if (pdev->full_frames == NULL) { | |
498 | PWC_ERROR("Woops. No frames ready.\n"); | |
1da177e4 LT |
499 | } |
500 | else { | |
2b455db6 LS |
501 | pdev->read_frame = pdev->full_frames; |
502 | pdev->full_frames = pdev->full_frames->next; | |
503 | pdev->read_frame->next = NULL; | |
504 | } | |
505 | ||
506 | if (pdev->read_frame != NULL) { | |
efad798b | 507 | /* Decompression is a lengthy process, so it's outside of the lock. |
2b455db6 LS |
508 | This gives the isoc_handler the opportunity to fill more frames |
509 | in the mean time. | |
510 | */ | |
511 | spin_unlock_irqrestore(&pdev->ptrlock, flags); | |
512 | ret = pwc_decompress(pdev); | |
513 | spin_lock_irqsave(&pdev->ptrlock, flags); | |
514 | ||
515 | /* We're done with read_buffer, tack it to the end of the empty buffer list */ | |
516 | if (pdev->empty_frames == NULL) { | |
517 | pdev->empty_frames = pdev->read_frame; | |
518 | pdev->empty_frames_tail = pdev->empty_frames; | |
1da177e4 LT |
519 | } |
520 | else { | |
2b455db6 LS |
521 | pdev->empty_frames_tail->next = pdev->read_frame; |
522 | pdev->empty_frames_tail = pdev->read_frame; | |
1da177e4 | 523 | } |
2b455db6 | 524 | pdev->read_frame = NULL; |
1da177e4 LT |
525 | } |
526 | spin_unlock_irqrestore(&pdev->ptrlock, flags); | |
527 | return ret; | |
528 | } | |
529 | ||
530 | /** | |
531 | \brief Advance pointers of image buffer (after each user request) | |
532 | */ | |
2b455db6 | 533 | void pwc_next_image(struct pwc_device *pdev) |
1da177e4 LT |
534 | { |
535 | pdev->image_used[pdev->fill_image] = 0; | |
2b455db6 | 536 | pdev->fill_image = (pdev->fill_image + 1) % pwc_mbufs; |
1da177e4 LT |
537 | } |
538 | ||
2b455db6 LS |
539 | /** |
540 | * Print debug information when a frame is discarded because all of our buffer | |
541 | * is full | |
542 | */ | |
543 | static void pwc_frame_dumped(struct pwc_device *pdev) | |
544 | { | |
545 | pdev->vframes_dumped++; | |
546 | if (pdev->vframe_count < FRAME_LOWMARK) | |
547 | return; | |
548 | ||
549 | if (pdev->vframes_dumped < 20) | |
550 | PWC_DEBUG_FLOW("Dumping frame %d\n", pdev->vframe_count); | |
551 | else if (pdev->vframes_dumped == 20) | |
552 | PWC_DEBUG_FLOW("Dumping frame %d (last message)\n", | |
553 | pdev->vframe_count); | |
554 | } | |
555 | ||
e32a7ecc NPT |
556 | static void pwc_snapshot_button(struct pwc_device *pdev, int down) |
557 | { | |
558 | if (down) { | |
559 | PWC_TRACE("Snapshot button pressed.\n"); | |
560 | pdev->snapshot_button_status = 1; | |
561 | } else { | |
562 | PWC_TRACE("Snapshot button released.\n"); | |
563 | } | |
564 | ||
565 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV | |
566 | if (pdev->button_dev) { | |
bcd3e4b3 | 567 | input_report_key(pdev->button_dev, KEY_CAMERA, down); |
e32a7ecc NPT |
568 | input_sync(pdev->button_dev); |
569 | } | |
570 | #endif | |
571 | } | |
572 | ||
2b455db6 LS |
573 | static int pwc_rcv_short_packet(struct pwc_device *pdev, const struct pwc_frame_buf *fbuf) |
574 | { | |
575 | int awake = 0; | |
576 | ||
577 | /* The ToUCam Fun CMOS sensor causes the firmware to send 2 or 3 bogus | |
578 | frames on the USB wire after an exposure change. This conditition is | |
579 | however detected in the cam and a bit is set in the header. | |
580 | */ | |
581 | if (pdev->type == 730) { | |
582 | unsigned char *ptr = (unsigned char *)fbuf->data; | |
583 | ||
584 | if (ptr[1] == 1 && ptr[0] & 0x10) { | |
585 | PWC_TRACE("Hyundai CMOS sensor bug. Dropping frame.\n"); | |
586 | pdev->drop_frames += 2; | |
587 | pdev->vframes_error++; | |
588 | } | |
589 | if ((ptr[0] ^ pdev->vmirror) & 0x01) { | |
e32a7ecc | 590 | pwc_snapshot_button(pdev, ptr[0] & 0x01); |
2b455db6 LS |
591 | } |
592 | if ((ptr[0] ^ pdev->vmirror) & 0x02) { | |
593 | if (ptr[0] & 0x02) | |
594 | PWC_TRACE("Image is mirrored.\n"); | |
595 | else | |
596 | PWC_TRACE("Image is normal.\n"); | |
597 | } | |
598 | pdev->vmirror = ptr[0] & 0x03; | |
599 | /* Sometimes the trailer of the 730 is still sent as a 4 byte packet | |
600 | after a short frame; this condition is filtered out specifically. A 4 byte | |
601 | frame doesn't make sense anyway. | |
602 | So we get either this sequence: | |
603 | drop_bit set -> 4 byte frame -> short frame -> good frame | |
604 | Or this one: | |
605 | drop_bit set -> short frame -> good frame | |
606 | So we drop either 3 or 2 frames in all! | |
607 | */ | |
608 | if (fbuf->filled == 4) | |
609 | pdev->drop_frames++; | |
610 | } | |
611 | else if (pdev->type == 740 || pdev->type == 720) { | |
612 | unsigned char *ptr = (unsigned char *)fbuf->data; | |
613 | if ((ptr[0] ^ pdev->vmirror) & 0x01) { | |
e32a7ecc | 614 | pwc_snapshot_button(pdev, ptr[0] & 0x01); |
2b455db6 LS |
615 | } |
616 | pdev->vmirror = ptr[0] & 0x03; | |
617 | } | |
618 | ||
619 | /* In case we were instructed to drop the frame, do so silently. | |
620 | The buffer pointers are not updated either (but the counters are reset below). | |
621 | */ | |
622 | if (pdev->drop_frames > 0) | |
623 | pdev->drop_frames--; | |
624 | else { | |
625 | /* Check for underflow first */ | |
626 | if (fbuf->filled < pdev->frame_total_size) { | |
627 | PWC_DEBUG_FLOW("Frame buffer underflow (%d bytes);" | |
628 | " discarded.\n", fbuf->filled); | |
629 | pdev->vframes_error++; | |
630 | } | |
631 | else { | |
632 | /* Send only once per EOF */ | |
633 | awake = 1; /* delay wake_ups */ | |
634 | ||
635 | /* Find our next frame to fill. This will always succeed, since we | |
636 | * nick a frame from either empty or full list, but if we had to | |
637 | * take it from the full list, it means a frame got dropped. | |
638 | */ | |
639 | if (pwc_next_fill_frame(pdev)) | |
640 | pwc_frame_dumped(pdev); | |
641 | ||
642 | } | |
643 | } /* !drop_frames */ | |
644 | pdev->vframe_count++; | |
645 | return awake; | |
646 | } | |
1da177e4 LT |
647 | |
648 | /* This gets called for the Isochronous pipe (video). This is done in | |
649 | * interrupt time, so it has to be fast, not crash, and not stall. Neat. | |
650 | */ | |
7d12e780 | 651 | static void pwc_isoc_handler(struct urb *urb) |
1da177e4 LT |
652 | { |
653 | struct pwc_device *pdev; | |
654 | int i, fst, flen; | |
655 | int awake; | |
656 | struct pwc_frame_buf *fbuf; | |
657 | unsigned char *fillptr = NULL, *iso_buf = NULL; | |
658 | ||
659 | awake = 0; | |
660 | pdev = (struct pwc_device *)urb->context; | |
661 | if (pdev == NULL) { | |
2b455db6 | 662 | PWC_ERROR("isoc_handler() called with NULL device?!\n"); |
1da177e4 LT |
663 | return; |
664 | } | |
2b455db6 | 665 | |
1da177e4 | 666 | if (urb->status == -ENOENT || urb->status == -ECONNRESET) { |
2b455db6 | 667 | PWC_DEBUG_OPEN("URB (%p) unlinked %ssynchronuously.\n", urb, urb->status == -ENOENT ? "" : "a"); |
1da177e4 LT |
668 | return; |
669 | } | |
670 | if (urb->status != -EINPROGRESS && urb->status != 0) { | |
671 | const char *errmsg; | |
672 | ||
673 | errmsg = "Unknown"; | |
674 | switch(urb->status) { | |
675 | case -ENOSR: errmsg = "Buffer error (overrun)"; break; | |
676 | case -EPIPE: errmsg = "Stalled (device not responding)"; break; | |
677 | case -EOVERFLOW: errmsg = "Babble (bad cable?)"; break; | |
678 | case -EPROTO: errmsg = "Bit-stuff error (bad cable?)"; break; | |
679 | case -EILSEQ: errmsg = "CRC/Timeout (could be anything)"; break; | |
38e2bfc9 | 680 | case -ETIME: errmsg = "Device does not respond"; break; |
1da177e4 | 681 | } |
2b455db6 | 682 | PWC_DEBUG_FLOW("pwc_isoc_handler() called with status %d [%s].\n", urb->status, errmsg); |
d56410e0 | 683 | /* Give up after a number of contiguous errors on the USB bus. |
1da177e4 LT |
684 | Appearantly something is wrong so we simulate an unplug event. |
685 | */ | |
686 | if (++pdev->visoc_errors > MAX_ISOC_ERRORS) | |
687 | { | |
2b455db6 | 688 | PWC_INFO("Too many ISOC errors, bailing out.\n"); |
1da177e4 LT |
689 | pdev->error_status = EIO; |
690 | awake = 1; | |
691 | wake_up_interruptible(&pdev->frameq); | |
692 | } | |
693 | goto handler_end; // ugly, but practical | |
694 | } | |
695 | ||
696 | fbuf = pdev->fill_frame; | |
697 | if (fbuf == NULL) { | |
2b455db6 | 698 | PWC_ERROR("pwc_isoc_handler without valid fill frame.\n"); |
1da177e4 LT |
699 | awake = 1; |
700 | goto handler_end; | |
701 | } | |
702 | else { | |
703 | fillptr = fbuf->data + fbuf->filled; | |
704 | } | |
705 | ||
706 | /* Reset ISOC error counter. We did get here, after all. */ | |
707 | pdev->visoc_errors = 0; | |
708 | ||
709 | /* vsync: 0 = don't copy data | |
d56410e0 MCC |
710 | 1 = sync-hunt |
711 | 2 = synched | |
1da177e4 LT |
712 | */ |
713 | /* Compact data */ | |
714 | for (i = 0; i < urb->number_of_packets; i++) { | |
715 | fst = urb->iso_frame_desc[i].status; | |
716 | flen = urb->iso_frame_desc[i].actual_length; | |
717 | iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
718 | if (fst == 0) { | |
719 | if (flen > 0) { /* if valid data... */ | |
720 | if (pdev->vsync > 0) { /* ...and we are not sync-hunting... */ | |
721 | pdev->vsync = 2; | |
722 | ||
723 | /* ...copy data to frame buffer, if possible */ | |
724 | if (flen + fbuf->filled > pdev->frame_total_size) { | |
2b455db6 | 725 | PWC_DEBUG_FLOW("Frame buffer overflow (flen = %d, frame_total_size = %d).\n", flen, pdev->frame_total_size); |
1da177e4 LT |
726 | pdev->vsync = 0; /* Hmm, let's wait for an EOF (end-of-frame) */ |
727 | pdev->vframes_error++; | |
728 | } | |
729 | else { | |
730 | memmove(fillptr, iso_buf, flen); | |
731 | fillptr += flen; | |
732 | } | |
733 | } | |
734 | fbuf->filled += flen; | |
735 | } /* ..flen > 0 */ | |
736 | ||
737 | if (flen < pdev->vlast_packet_size) { | |
d56410e0 | 738 | /* Shorter packet... We probably have the end of an image-frame; |
1da177e4 LT |
739 | wake up read() process and let select()/poll() do something. |
740 | Decompression is done in user time over there. | |
2b455db6 | 741 | */ |
1da177e4 | 742 | if (pdev->vsync == 2) { |
2b455db6 LS |
743 | if (pwc_rcv_short_packet(pdev, fbuf)) { |
744 | awake = 1; | |
745 | fbuf = pdev->fill_frame; | |
1da177e4 | 746 | } |
1da177e4 LT |
747 | } |
748 | fbuf->filled = 0; | |
749 | fillptr = fbuf->data; | |
750 | pdev->vsync = 1; | |
2b455db6 LS |
751 | } |
752 | ||
1da177e4 LT |
753 | pdev->vlast_packet_size = flen; |
754 | } /* ..status == 0 */ | |
1da177e4 | 755 | else { |
2b455db6 | 756 | /* This is normally not interesting to the user, unless |
ff699e6b DSL |
757 | * you are really debugging something, default = 0 */ |
758 | static int iso_error; | |
1da177e4 LT |
759 | iso_error++; |
760 | if (iso_error < 20) | |
2b455db6 | 761 | PWC_DEBUG_FLOW("Iso frame %d of USB has error %d\n", i, fst); |
1da177e4 | 762 | } |
1da177e4 LT |
763 | } |
764 | ||
765 | handler_end: | |
766 | if (awake) | |
767 | wake_up_interruptible(&pdev->frameq); | |
768 | ||
769 | urb->dev = pdev->udev; | |
770 | i = usb_submit_urb(urb, GFP_ATOMIC); | |
771 | if (i != 0) | |
2b455db6 | 772 | PWC_ERROR("Error (%d) re-submitting urb in pwc_isoc_handler.\n", i); |
1da177e4 LT |
773 | } |
774 | ||
775 | ||
2b455db6 | 776 | int pwc_isoc_init(struct pwc_device *pdev) |
1da177e4 LT |
777 | { |
778 | struct usb_device *udev; | |
779 | struct urb *urb; | |
780 | int i, j, ret; | |
1da177e4 LT |
781 | struct usb_interface *intf; |
782 | struct usb_host_interface *idesc = NULL; | |
783 | ||
1da177e4 LT |
784 | if (pdev->iso_init) |
785 | return 0; | |
786 | pdev->vsync = 0; | |
787 | udev = pdev->udev; | |
788 | ||
789 | /* Get the current alternate interface, adjust packet size */ | |
1da177e4 LT |
790 | intf = usb_ifnum_to_if(udev, 0); |
791 | if (intf) | |
792 | idesc = usb_altnum_to_altsetting(intf, pdev->valternate); | |
1da177e4 | 793 | if (!idesc) |
c2464121 | 794 | return -EIO; |
1da177e4 LT |
795 | |
796 | /* Search video endpoint */ | |
797 | pdev->vmax_packet_size = -1; | |
2b455db6 | 798 | for (i = 0; i < idesc->desc.bNumEndpoints; i++) { |
1da177e4 LT |
799 | if ((idesc->endpoint[i].desc.bEndpointAddress & 0xF) == pdev->vendpoint) { |
800 | pdev->vmax_packet_size = le16_to_cpu(idesc->endpoint[i].desc.wMaxPacketSize); | |
801 | break; | |
802 | } | |
2b455db6 | 803 | } |
d56410e0 | 804 | |
1da177e4 | 805 | if (pdev->vmax_packet_size < 0 || pdev->vmax_packet_size > ISO_MAX_FRAME_SIZE) { |
2b455db6 | 806 | PWC_ERROR("Failed to find packet size for video endpoint in current alternate setting.\n"); |
093cf723 | 807 | return -ENFILE; /* Odd error, that should be noticeable */ |
1da177e4 LT |
808 | } |
809 | ||
810 | /* Set alternate interface */ | |
811 | ret = 0; | |
2b455db6 | 812 | PWC_DEBUG_OPEN("Setting alternate interface %d\n", pdev->valternate); |
1da177e4 LT |
813 | ret = usb_set_interface(pdev->udev, 0, pdev->valternate); |
814 | if (ret < 0) | |
815 | return ret; | |
816 | ||
817 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
818 | urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); | |
819 | if (urb == NULL) { | |
2b455db6 | 820 | PWC_ERROR("Failed to allocate urb %d\n", i); |
1da177e4 LT |
821 | ret = -ENOMEM; |
822 | break; | |
823 | } | |
824 | pdev->sbuf[i].urb = urb; | |
2b455db6 | 825 | PWC_DEBUG_MEMORY("Allocated URB at 0x%p\n", urb); |
1da177e4 LT |
826 | } |
827 | if (ret) { | |
828 | /* De-allocate in reverse order */ | |
444f4f91 | 829 | while (i--) { |
90b2625a | 830 | usb_free_urb(pdev->sbuf[i].urb); |
1da177e4 | 831 | pdev->sbuf[i].urb = NULL; |
1da177e4 LT |
832 | } |
833 | return ret; | |
834 | } | |
835 | ||
d56410e0 | 836 | /* init URB structure */ |
1da177e4 LT |
837 | for (i = 0; i < MAX_ISO_BUFS; i++) { |
838 | urb = pdev->sbuf[i].urb; | |
839 | ||
840 | urb->interval = 1; // devik | |
841 | urb->dev = udev; | |
d56410e0 | 842 | urb->pipe = usb_rcvisocpipe(udev, pdev->vendpoint); |
1da177e4 | 843 | urb->transfer_flags = URB_ISO_ASAP; |
d56410e0 MCC |
844 | urb->transfer_buffer = pdev->sbuf[i].data; |
845 | urb->transfer_buffer_length = ISO_BUFFER_SIZE; | |
846 | urb->complete = pwc_isoc_handler; | |
847 | urb->context = pdev; | |
1da177e4 LT |
848 | urb->start_frame = 0; |
849 | urb->number_of_packets = ISO_FRAMES_PER_DESC; | |
850 | for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { | |
851 | urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; | |
852 | urb->iso_frame_desc[j].length = pdev->vmax_packet_size; | |
853 | } | |
854 | } | |
855 | ||
856 | /* link */ | |
857 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
858 | ret = usb_submit_urb(pdev->sbuf[i].urb, GFP_KERNEL); | |
622d9f5d | 859 | if (ret) { |
2b455db6 | 860 | PWC_ERROR("isoc_init() submit_urb %d failed with error %d\n", i, ret); |
622d9f5d HG |
861 | pdev->iso_init = 1; |
862 | pwc_isoc_cleanup(pdev); | |
863 | return ret; | |
864 | } | |
865 | PWC_DEBUG_MEMORY("URB 0x%p submitted.\n", pdev->sbuf[i].urb); | |
1da177e4 LT |
866 | } |
867 | ||
868 | /* All is done... */ | |
869 | pdev->iso_init = 1; | |
2b455db6 | 870 | PWC_DEBUG_OPEN("<< pwc_isoc_init()\n"); |
1da177e4 LT |
871 | return 0; |
872 | } | |
873 | ||
0b67f5c5 | 874 | static void pwc_iso_stop(struct pwc_device *pdev) |
1da177e4 LT |
875 | { |
876 | int i; | |
877 | ||
1da177e4 LT |
878 | /* Unlinking ISOC buffers one by one */ |
879 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
880 | struct urb *urb; | |
881 | ||
882 | urb = pdev->sbuf[i].urb; | |
5fa1247a | 883 | if (urb) { |
0b67f5c5 ON |
884 | PWC_DEBUG_MEMORY("Unlinking URB %p\n", urb); |
885 | usb_kill_urb(urb); | |
886 | } | |
887 | } | |
888 | } | |
889 | ||
890 | static void pwc_iso_free(struct pwc_device *pdev) | |
891 | { | |
892 | int i; | |
893 | ||
894 | /* Freeing ISOC buffers one by one */ | |
895 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
896 | struct urb *urb; | |
897 | ||
898 | urb = pdev->sbuf[i].urb; | |
5fa1247a | 899 | if (urb) { |
2b455db6 | 900 | PWC_DEBUG_MEMORY("Freeing URB\n"); |
1da177e4 LT |
901 | usb_free_urb(urb); |
902 | pdev->sbuf[i].urb = NULL; | |
903 | } | |
904 | } | |
0b67f5c5 ON |
905 | } |
906 | ||
907 | void pwc_isoc_cleanup(struct pwc_device *pdev) | |
908 | { | |
909 | PWC_DEBUG_OPEN(">> pwc_isoc_cleanup()\n"); | |
c2464121 | 910 | |
0b67f5c5 ON |
911 | if (pdev->iso_init == 0) |
912 | return; | |
913 | ||
914 | pwc_iso_stop(pdev); | |
915 | pwc_iso_free(pdev); | |
1da177e4 LT |
916 | |
917 | /* Stop camera, but only if we are sure the camera is still there (unplug | |
d56410e0 | 918 | is signalled by EPIPE) |
1da177e4 | 919 | */ |
c7d18867 | 920 | if (pdev->error_status != EPIPE) { |
2b455db6 | 921 | PWC_DEBUG_OPEN("Setting alternate interface 0.\n"); |
1da177e4 LT |
922 | usb_set_interface(pdev->udev, 0, 0); |
923 | } | |
924 | ||
925 | pdev->iso_init = 0; | |
2b455db6 | 926 | PWC_DEBUG_OPEN("<< pwc_isoc_cleanup()\n"); |
1da177e4 LT |
927 | } |
928 | ||
2b455db6 LS |
929 | /********* |
930 | * sysfs | |
931 | *********/ | |
54bd5b66 | 932 | static struct pwc_device *cd_to_pwc(struct device *cd) |
2b455db6 LS |
933 | { |
934 | struct video_device *vdev = to_video_device(cd); | |
935 | return video_get_drvdata(vdev); | |
936 | } | |
937 | ||
54bd5b66 KS |
938 | static ssize_t show_pan_tilt(struct device *class_dev, |
939 | struct device_attribute *attr, char *buf) | |
2b455db6 LS |
940 | { |
941 | struct pwc_device *pdev = cd_to_pwc(class_dev); | |
942 | return sprintf(buf, "%d %d\n", pdev->pan_angle, pdev->tilt_angle); | |
943 | } | |
944 | ||
54bd5b66 KS |
945 | static ssize_t store_pan_tilt(struct device *class_dev, |
946 | struct device_attribute *attr, | |
947 | const char *buf, size_t count) | |
2b455db6 LS |
948 | { |
949 | struct pwc_device *pdev = cd_to_pwc(class_dev); | |
950 | int pan, tilt; | |
951 | int ret = -EINVAL; | |
952 | ||
953 | if (strncmp(buf, "reset", 5) == 0) | |
954 | ret = pwc_mpt_reset(pdev, 0x3); | |
955 | ||
956 | else if (sscanf(buf, "%d %d", &pan, &tilt) > 0) | |
957 | ret = pwc_mpt_set_angle(pdev, pan, tilt); | |
958 | ||
959 | if (ret < 0) | |
960 | return ret; | |
961 | return strlen(buf); | |
962 | } | |
54bd5b66 KS |
963 | static DEVICE_ATTR(pan_tilt, S_IRUGO | S_IWUSR, show_pan_tilt, |
964 | store_pan_tilt); | |
2b455db6 | 965 | |
54bd5b66 KS |
966 | static ssize_t show_snapshot_button_status(struct device *class_dev, |
967 | struct device_attribute *attr, char *buf) | |
2b455db6 LS |
968 | { |
969 | struct pwc_device *pdev = cd_to_pwc(class_dev); | |
970 | int status = pdev->snapshot_button_status; | |
971 | pdev->snapshot_button_status = 0; | |
972 | return sprintf(buf, "%d\n", status); | |
973 | } | |
974 | ||
54bd5b66 KS |
975 | static DEVICE_ATTR(button, S_IRUGO | S_IWUSR, show_snapshot_button_status, |
976 | NULL); | |
2b455db6 | 977 | |
9a7b2d1f | 978 | static int pwc_create_sysfs_files(struct pwc_device *pdev) |
2b455db6 | 979 | { |
c12e3be0 JG |
980 | int rc; |
981 | ||
9a7b2d1f | 982 | rc = device_create_file(&pdev->vdev.dev, &dev_attr_button); |
c12e3be0 JG |
983 | if (rc) |
984 | goto err; | |
985 | if (pdev->features & FEATURE_MOTOR_PANTILT) { | |
9a7b2d1f | 986 | rc = device_create_file(&pdev->vdev.dev, &dev_attr_pan_tilt); |
89dec01b DT |
987 | if (rc) |
988 | goto err_button; | |
c12e3be0 JG |
989 | } |
990 | ||
991 | return 0; | |
992 | ||
993 | err_button: | |
9a7b2d1f | 994 | device_remove_file(&pdev->vdev.dev, &dev_attr_button); |
c12e3be0 | 995 | err: |
f894dfd7 | 996 | PWC_ERROR("Could not create sysfs files.\n"); |
c12e3be0 | 997 | return rc; |
2b455db6 LS |
998 | } |
999 | ||
9a7b2d1f | 1000 | static void pwc_remove_sysfs_files(struct pwc_device *pdev) |
2b455db6 | 1001 | { |
2b455db6 | 1002 | if (pdev->features & FEATURE_MOTOR_PANTILT) |
9a7b2d1f HG |
1003 | device_remove_file(&pdev->vdev.dev, &dev_attr_pan_tilt); |
1004 | device_remove_file(&pdev->vdev.dev, &dev_attr_button); | |
2b455db6 LS |
1005 | } |
1006 | ||
05ad3907 | 1007 | #ifdef CONFIG_USB_PWC_DEBUG |
2b455db6 LS |
1008 | static const char *pwc_sensor_type_to_string(unsigned int sensor_type) |
1009 | { | |
1010 | switch(sensor_type) { | |
1011 | case 0x00: | |
1012 | return "Hyundai CMOS sensor"; | |
1013 | case 0x20: | |
1014 | return "Sony CCD sensor + TDA8787"; | |
1015 | case 0x2E: | |
1016 | return "Sony CCD sensor + Exas 98L59"; | |
1017 | case 0x2F: | |
1018 | return "Sony CCD sensor + ADI 9804"; | |
1019 | case 0x30: | |
1020 | return "Sharp CCD sensor + TDA8787"; | |
1021 | case 0x3E: | |
1022 | return "Sharp CCD sensor + Exas 98L59"; | |
1023 | case 0x3F: | |
1024 | return "Sharp CCD sensor + ADI 9804"; | |
1025 | case 0x40: | |
1026 | return "UPA 1021 sensor"; | |
1027 | case 0x100: | |
1028 | return "VGA sensor"; | |
1029 | case 0x101: | |
1030 | return "PAL MR sensor"; | |
1031 | default: | |
657de3cd | 1032 | return "unknown type of sensor"; |
2b455db6 LS |
1033 | } |
1034 | } | |
1035 | #endif | |
1da177e4 LT |
1036 | |
1037 | /***************************************************************************/ | |
1038 | /* Video4Linux functions */ | |
1039 | ||
bec43661 | 1040 | static int pwc_video_open(struct file *file) |
1da177e4 | 1041 | { |
2b455db6 | 1042 | int i, ret; |
1da177e4 LT |
1043 | struct video_device *vdev = video_devdata(file); |
1044 | struct pwc_device *pdev; | |
1045 | ||
2b455db6 | 1046 | PWC_DEBUG_OPEN(">> video_open called(vdev = 0x%p).\n", vdev); |
d56410e0 | 1047 | |
601e9444 | 1048 | pdev = video_get_drvdata(vdev); |
2b455db6 LS |
1049 | if (pdev->vopen) { |
1050 | PWC_DEBUG_OPEN("I'm busy, someone is using the device.\n"); | |
1da177e4 | 1051 | return -EBUSY; |
2b455db6 | 1052 | } |
d56410e0 | 1053 | |
5c8e2403 | 1054 | pwc_construct(pdev); /* set min/max sizes correct */ |
1da177e4 | 1055 | if (!pdev->usb_init) { |
2b455db6 | 1056 | PWC_DEBUG_OPEN("Doing first time initialization.\n"); |
1da177e4 | 1057 | pdev->usb_init = 1; |
d56410e0 | 1058 | |
2b455db6 LS |
1059 | /* Query sensor type */ |
1060 | ret = pwc_get_cmos_sensor(pdev, &i); | |
1061 | if (ret >= 0) | |
1da177e4 | 1062 | { |
2b455db6 | 1063 | PWC_DEBUG_OPEN("This %s camera is equipped with a %s (%d).\n", |
9a7b2d1f | 1064 | pdev->vdev.name, |
2b455db6 | 1065 | pwc_sensor_type_to_string(i), i); |
1da177e4 LT |
1066 | } |
1067 | } | |
1068 | ||
1069 | /* Turn on camera */ | |
1070 | if (power_save) { | |
1071 | i = pwc_camera_power(pdev, 1); | |
1072 | if (i < 0) | |
2b455db6 | 1073 | PWC_DEBUG_OPEN("Failed to restore power to the camera! (%d)\n", i); |
1da177e4 LT |
1074 | } |
1075 | /* Set LED on/off time */ | |
1076 | if (pwc_set_leds(pdev, led_on, led_off) < 0) | |
2b455db6 | 1077 | PWC_DEBUG_OPEN("Failed to set LED on/off time.\n"); |
d56410e0 | 1078 | |
1da177e4 LT |
1079 | |
1080 | /* So far, so good. Allocate memory. */ | |
1081 | i = pwc_allocate_buffers(pdev); | |
1082 | if (i < 0) { | |
2b455db6 LS |
1083 | PWC_DEBUG_OPEN("Failed to allocate buffers memory.\n"); |
1084 | pwc_free_buffers(pdev); | |
1da177e4 LT |
1085 | return i; |
1086 | } | |
d56410e0 | 1087 | |
1da177e4 LT |
1088 | /* Reset buffers & parameters */ |
1089 | pwc_reset_buffers(pdev); | |
2b455db6 | 1090 | for (i = 0; i < pwc_mbufs; i++) |
1da177e4 LT |
1091 | pdev->image_used[i] = 0; |
1092 | pdev->vframe_count = 0; | |
1093 | pdev->vframes_dumped = 0; | |
1094 | pdev->vframes_error = 0; | |
1095 | pdev->visoc_errors = 0; | |
1096 | pdev->error_status = 0; | |
1da177e4 LT |
1097 | pwc_construct(pdev); /* set min/max sizes correct */ |
1098 | ||
1099 | /* Set some defaults */ | |
1100 | pdev->vsnapshot = 0; | |
1101 | ||
3751e288 | 1102 | /* Set video size, first try the last used video size |
1da177e4 LT |
1103 | (or the default one); if that fails try QCIF/10 or QSIF/10; |
1104 | it that fails too, give up. | |
1105 | */ | |
1106 | i = pwc_set_video_mode(pdev, pwc_image_sizes[pdev->vsize].x, pwc_image_sizes[pdev->vsize].y, pdev->vframes, pdev->vcompression, 0); | |
1107 | if (i) { | |
2b455db6 LS |
1108 | unsigned int default_resolution; |
1109 | PWC_DEBUG_OPEN("First attempt at set_video_mode failed.\n"); | |
1110 | if (pdev->type>= 730) | |
1111 | default_resolution = PSZ_QSIF; | |
1da177e4 | 1112 | else |
2b455db6 LS |
1113 | default_resolution = PSZ_QCIF; |
1114 | ||
1115 | i = pwc_set_video_mode(pdev, | |
1116 | pwc_image_sizes[default_resolution].x, | |
1117 | pwc_image_sizes[default_resolution].y, | |
1118 | 10, | |
1119 | pdev->vcompression, | |
1120 | 0); | |
1da177e4 LT |
1121 | } |
1122 | if (i) { | |
2b455db6 LS |
1123 | PWC_DEBUG_OPEN("Second attempt at set_video_mode failed.\n"); |
1124 | pwc_free_buffers(pdev); | |
1da177e4 LT |
1125 | return i; |
1126 | } | |
d56410e0 | 1127 | |
2b455db6 LS |
1128 | /* Initialize the webcam to sane value */ |
1129 | pwc_set_brightness(pdev, 0x7fff); | |
1130 | pwc_set_agc(pdev, 1, 0); | |
1131 | ||
1da177e4 LT |
1132 | pdev->vopen++; |
1133 | file->private_data = vdev; | |
2b455db6 | 1134 | PWC_DEBUG_OPEN("<< video_open() returns 0.\n"); |
1da177e4 LT |
1135 | return 0; |
1136 | } | |
1137 | ||
9a7b2d1f | 1138 | static void pwc_video_release(struct video_device *vfd) |
85237f20 | 1139 | { |
9a7b2d1f HG |
1140 | struct pwc_device *pdev = container_of(vfd, struct pwc_device, vdev); |
1141 | int hint; | |
e32a7ecc | 1142 | |
9a7b2d1f HG |
1143 | /* search device_hint[] table if we occupy a slot, by any chance */ |
1144 | for (hint = 0; hint < MAX_DEV_HINTS; hint++) | |
1145 | if (device_hint[hint].pdev == pdev) | |
1146 | device_hint[hint].pdev = NULL; | |
89dec01b DT |
1147 | |
1148 | kfree(pdev); | |
85237f20 ON |
1149 | } |
1150 | ||
1da177e4 | 1151 | /* Note that all cleanup is done in the reverse order as in _open */ |
bec43661 | 1152 | static int pwc_video_close(struct file *file) |
1da177e4 LT |
1153 | { |
1154 | struct video_device *vdev = file->private_data; | |
1155 | struct pwc_device *pdev; | |
9a7b2d1f | 1156 | int i; |
1da177e4 | 1157 | |
2b455db6 | 1158 | PWC_DEBUG_OPEN(">> video_close called(vdev = 0x%p).\n", vdev); |
1da177e4 | 1159 | |
601e9444 | 1160 | pdev = video_get_drvdata(vdev); |
1da177e4 | 1161 | if (pdev->vopen == 0) |
2b455db6 | 1162 | PWC_DEBUG_MODULE("video_close() called on closed device?\n"); |
1da177e4 LT |
1163 | |
1164 | /* Dump statistics, but only if a reasonable amount of frames were | |
1165 | processed (to prevent endless log-entries in case of snap-shot | |
1166 | programs) | |
1167 | */ | |
1168 | if (pdev->vframe_count > 20) | |
2b455db6 | 1169 | PWC_DEBUG_MODULE("Closing video device: %d frames received, dumped %d frames, %d frames with errors.\n", pdev->vframe_count, pdev->vframes_dumped, pdev->vframes_error); |
1da177e4 | 1170 | |
2b455db6 LS |
1171 | if (DEVICE_USE_CODEC1(pdev->type)) |
1172 | pwc_dec1_exit(); | |
1173 | else | |
1174 | pwc_dec23_exit(); | |
1da177e4 LT |
1175 | |
1176 | pwc_isoc_cleanup(pdev); | |
1177 | pwc_free_buffers(pdev); | |
1178 | ||
1179 | /* Turn off LEDS and power down camera, but only when not unplugged */ | |
85237f20 | 1180 | if (!pdev->unplugged) { |
1da177e4 LT |
1181 | /* Turn LEDs off */ |
1182 | if (pwc_set_leds(pdev, 0, 0) < 0) | |
2b455db6 | 1183 | PWC_DEBUG_MODULE("Failed to set LED on/off time.\n"); |
1da177e4 LT |
1184 | if (power_save) { |
1185 | i = pwc_camera_power(pdev, 0); | |
1186 | if (i < 0) | |
2b455db6 | 1187 | PWC_ERROR("Failed to power down camera (%d)\n", i); |
1da177e4 | 1188 | } |
85237f20 | 1189 | pdev->vopen--; |
7b9fbc3e | 1190 | PWC_DEBUG_OPEN("<< video_close() vopen=%d\n", pdev->vopen); |
1da177e4 | 1191 | } |
85237f20 | 1192 | |
1da177e4 LT |
1193 | return 0; |
1194 | } | |
1195 | ||
1196 | /* | |
1197 | * FIXME: what about two parallel reads ???? | |
1198 | * ANSWER: Not supported. You can't open the device more than once, | |
d56410e0 MCC |
1199 | despite what the V4L1 interface says. First, I don't see |
1200 | the need, second there's no mechanism of alerting the | |
1201 | 2nd/3rd/... process of events like changing image size. | |
1202 | And I don't see the point of blocking that for the | |
1203 | 2nd/3rd/... process. | |
1204 | In multi-threaded environments reading parallel from any | |
1205 | device is tricky anyhow. | |
1da177e4 LT |
1206 | */ |
1207 | ||
2b455db6 | 1208 | static ssize_t pwc_video_read(struct file *file, char __user *buf, |
1da177e4 LT |
1209 | size_t count, loff_t *ppos) |
1210 | { | |
1211 | struct video_device *vdev = file->private_data; | |
1212 | struct pwc_device *pdev; | |
1213 | int noblock = file->f_flags & O_NONBLOCK; | |
1214 | DECLARE_WAITQUEUE(wait, current); | |
0b67f5c5 | 1215 | int bytes_to_read, rv = 0; |
2b455db6 | 1216 | void *image_buffer_addr; |
1da177e4 | 1217 | |
2b455db6 LS |
1218 | PWC_DEBUG_READ("pwc_video_read(vdev=0x%p, buf=%p, count=%zd) called.\n", |
1219 | vdev, buf, count); | |
601e9444 | 1220 | pdev = video_get_drvdata(vdev); |
0b67f5c5 | 1221 | |
0b67f5c5 ON |
1222 | if (pdev->error_status) { |
1223 | rv = -pdev->error_status; /* Something happened, report what. */ | |
1224 | goto err_out; | |
1225 | } | |
1da177e4 | 1226 | |
3751e288 HG |
1227 | /* Start the stream (if not already started) */ |
1228 | rv = pwc_isoc_init(pdev); | |
1229 | if (rv) | |
1230 | goto err_out; | |
1231 | ||
1da177e4 LT |
1232 | /* In case we're doing partial reads, we don't have to wait for a frame */ |
1233 | if (pdev->image_read_pos == 0) { | |
1234 | /* Do wait queueing according to the (doc)book */ | |
1235 | add_wait_queue(&pdev->frameq, &wait); | |
1236 | while (pdev->full_frames == NULL) { | |
1237 | /* Check for unplugged/etc. here */ | |
1238 | if (pdev->error_status) { | |
1239 | remove_wait_queue(&pdev->frameq, &wait); | |
1240 | set_current_state(TASK_RUNNING); | |
0b67f5c5 ON |
1241 | rv = -pdev->error_status ; |
1242 | goto err_out; | |
1da177e4 | 1243 | } |
d56410e0 MCC |
1244 | if (noblock) { |
1245 | remove_wait_queue(&pdev->frameq, &wait); | |
1246 | set_current_state(TASK_RUNNING); | |
0b67f5c5 ON |
1247 | rv = -EWOULDBLOCK; |
1248 | goto err_out; | |
d56410e0 MCC |
1249 | } |
1250 | if (signal_pending(current)) { | |
1251 | remove_wait_queue(&pdev->frameq, &wait); | |
1252 | set_current_state(TASK_RUNNING); | |
0b67f5c5 ON |
1253 | rv = -ERESTARTSYS; |
1254 | goto err_out; | |
d56410e0 | 1255 | } |
b577f962 | 1256 | mutex_unlock(&pdev->modlock); |
d56410e0 MCC |
1257 | schedule(); |
1258 | set_current_state(TASK_INTERRUPTIBLE); | |
b577f962 | 1259 | mutex_lock(&pdev->modlock); |
1da177e4 LT |
1260 | } |
1261 | remove_wait_queue(&pdev->frameq, &wait); | |
1262 | set_current_state(TASK_RUNNING); | |
d56410e0 | 1263 | |
1da177e4 | 1264 | /* Decompress and release frame */ |
c2464121 HG |
1265 | rv = pwc_handle_frame(pdev); |
1266 | if (rv) | |
0b67f5c5 | 1267 | goto err_out; |
1da177e4 LT |
1268 | } |
1269 | ||
2b455db6 | 1270 | PWC_DEBUG_READ("Copying data to user space.\n"); |
479567ce | 1271 | if (pdev->pixfmt != V4L2_PIX_FMT_YUV420) |
2b455db6 | 1272 | bytes_to_read = pdev->frame_size + sizeof(struct pwc_raw_frame); |
1da177e4 | 1273 | else |
d56410e0 | 1274 | bytes_to_read = pdev->view.size; |
1da177e4 LT |
1275 | |
1276 | /* copy bytes to user space; we allow for partial reads */ | |
1277 | if (count + pdev->image_read_pos > bytes_to_read) | |
1278 | count = bytes_to_read - pdev->image_read_pos; | |
2b455db6 LS |
1279 | image_buffer_addr = pdev->image_data; |
1280 | image_buffer_addr += pdev->images[pdev->fill_image].offset; | |
1281 | image_buffer_addr += pdev->image_read_pos; | |
0b67f5c5 ON |
1282 | if (copy_to_user(buf, image_buffer_addr, count)) { |
1283 | rv = -EFAULT; | |
1284 | goto err_out; | |
1285 | } | |
1da177e4 LT |
1286 | pdev->image_read_pos += count; |
1287 | if (pdev->image_read_pos >= bytes_to_read) { /* All data has been read */ | |
1288 | pdev->image_read_pos = 0; | |
1289 | pwc_next_image(pdev); | |
1290 | } | |
1291 | return count; | |
0b67f5c5 | 1292 | err_out: |
0b67f5c5 | 1293 | return rv; |
1da177e4 LT |
1294 | } |
1295 | ||
1296 | static unsigned int pwc_video_poll(struct file *file, poll_table *wait) | |
1297 | { | |
1298 | struct video_device *vdev = file->private_data; | |
1299 | struct pwc_device *pdev; | |
3751e288 | 1300 | int ret; |
1da177e4 | 1301 | |
601e9444 | 1302 | pdev = video_get_drvdata(vdev); |
1da177e4 | 1303 | |
3751e288 | 1304 | /* Start the stream (if not already started) */ |
3751e288 | 1305 | ret = pwc_isoc_init(pdev); |
3751e288 HG |
1306 | if (ret) |
1307 | return ret; | |
1308 | ||
1da177e4 LT |
1309 | poll_wait(file, &pdev->frameq, wait); |
1310 | if (pdev->error_status) | |
1311 | return POLLERR; | |
1312 | if (pdev->full_frames != NULL) /* we have frames waiting */ | |
1313 | return (POLLIN | POLLRDNORM); | |
1314 | ||
1315 | return 0; | |
1316 | } | |
1317 | ||
1da177e4 LT |
1318 | static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma) |
1319 | { | |
1320 | struct video_device *vdev = file->private_data; | |
1321 | struct pwc_device *pdev; | |
2b455db6 LS |
1322 | unsigned long start; |
1323 | unsigned long size; | |
1324 | unsigned long page, pos = 0; | |
1325 | int index; | |
d56410e0 | 1326 | |
645635b0 | 1327 | PWC_DEBUG_MEMORY(">> %s\n", __func__); |
601e9444 | 1328 | pdev = video_get_drvdata(vdev); |
2b455db6 LS |
1329 | size = vma->vm_end - vma->vm_start; |
1330 | start = vma->vm_start; | |
d56410e0 | 1331 | |
2b455db6 LS |
1332 | /* Find the idx buffer for this mapping */ |
1333 | for (index = 0; index < pwc_mbufs; index++) { | |
1334 | pos = pdev->images[index].offset; | |
1335 | if ((pos>>PAGE_SHIFT) == vma->vm_pgoff) | |
1336 | break; | |
1337 | } | |
1338 | if (index == MAX_IMAGES) | |
1339 | return -EINVAL; | |
1340 | if (index == 0) { | |
1341 | /* | |
1342 | * Special case for v4l1. In v4l1, we map only one big buffer, | |
1343 | * but in v4l2 each buffer is mapped | |
1344 | */ | |
1345 | unsigned long total_size; | |
1346 | total_size = pwc_mbufs * pdev->len_per_image; | |
1347 | if (size != pdev->len_per_image && size != total_size) { | |
1348 | PWC_ERROR("Wrong size (%lu) needed to be len_per_image=%d or total_size=%lu\n", | |
1349 | size, pdev->len_per_image, total_size); | |
1350 | return -EINVAL; | |
1351 | } | |
1352 | } else if (size > pdev->len_per_image) | |
1353 | return -EINVAL; | |
1354 | ||
1355 | vma->vm_flags |= VM_IO; /* from 2.6.9-acX */ | |
1da177e4 | 1356 | |
2b455db6 | 1357 | pos += (unsigned long)pdev->image_data; |
1da177e4 LT |
1358 | while (size > 0) { |
1359 | page = vmalloc_to_pfn((void *)pos); | |
1360 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) | |
1361 | return -EAGAIN; | |
1da177e4 LT |
1362 | start += PAGE_SIZE; |
1363 | pos += PAGE_SIZE; | |
1364 | if (size > PAGE_SIZE) | |
1365 | size -= PAGE_SIZE; | |
1366 | else | |
1367 | size = 0; | |
1368 | } | |
1da177e4 LT |
1369 | return 0; |
1370 | } | |
1371 | ||
1372 | /***************************************************************************/ | |
1373 | /* USB functions */ | |
1374 | ||
1375 | /* This function gets called when a new device is plugged in or the usb core | |
1376 | * is loaded. | |
1377 | */ | |
1378 | ||
1379 | static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
1380 | { | |
1381 | struct usb_device *udev = interface_to_usbdev(intf); | |
1382 | struct pwc_device *pdev = NULL; | |
1383 | int vendor_id, product_id, type_id; | |
89dec01b | 1384 | int hint, rc; |
1da177e4 LT |
1385 | int features = 0; |
1386 | int video_nr = -1; /* default: use next available device */ | |
1387 | char serial_number[30], *name; | |
1388 | ||
2b455db6 LS |
1389 | vendor_id = le16_to_cpu(udev->descriptor.idVendor); |
1390 | product_id = le16_to_cpu(udev->descriptor.idProduct); | |
1391 | ||
1da177e4 | 1392 | /* Check if we can handle this device */ |
2b455db6 LS |
1393 | PWC_DEBUG_PROBE("probe() called [%04X %04X], if %d\n", |
1394 | vendor_id, product_id, | |
1da177e4 LT |
1395 | intf->altsetting->desc.bInterfaceNumber); |
1396 | ||
1397 | /* the interfaces are probed one by one. We are only interested in the | |
1398 | video interface (0) now. | |
1399 | Interface 1 is the Audio Control, and interface 2 Audio itself. | |
1400 | */ | |
1401 | if (intf->altsetting->desc.bInterfaceNumber > 0) | |
1402 | return -ENODEV; | |
1403 | ||
1da177e4 LT |
1404 | if (vendor_id == 0x0471) { |
1405 | switch (product_id) { | |
1406 | case 0x0302: | |
2b455db6 | 1407 | PWC_INFO("Philips PCA645VC USB webcam detected.\n"); |
1da177e4 LT |
1408 | name = "Philips 645 webcam"; |
1409 | type_id = 645; | |
1410 | break; | |
1411 | case 0x0303: | |
2b455db6 | 1412 | PWC_INFO("Philips PCA646VC USB webcam detected.\n"); |
1da177e4 LT |
1413 | name = "Philips 646 webcam"; |
1414 | type_id = 646; | |
1415 | break; | |
1416 | case 0x0304: | |
2b455db6 | 1417 | PWC_INFO("Askey VC010 type 2 USB webcam detected.\n"); |
1da177e4 LT |
1418 | name = "Askey VC010 webcam"; |
1419 | type_id = 646; | |
1420 | break; | |
1421 | case 0x0307: | |
2b455db6 | 1422 | PWC_INFO("Philips PCVC675K (Vesta) USB webcam detected.\n"); |
1da177e4 LT |
1423 | name = "Philips 675 webcam"; |
1424 | type_id = 675; | |
1425 | break; | |
1426 | case 0x0308: | |
2b455db6 | 1427 | PWC_INFO("Philips PCVC680K (Vesta Pro) USB webcam detected.\n"); |
1da177e4 LT |
1428 | name = "Philips 680 webcam"; |
1429 | type_id = 680; | |
1430 | break; | |
1431 | case 0x030C: | |
2b455db6 | 1432 | PWC_INFO("Philips PCVC690K (Vesta Pro Scan) USB webcam detected.\n"); |
1da177e4 LT |
1433 | name = "Philips 690 webcam"; |
1434 | type_id = 690; | |
1435 | break; | |
1436 | case 0x0310: | |
2b455db6 | 1437 | PWC_INFO("Philips PCVC730K (ToUCam Fun)/PCVC830 (ToUCam II) USB webcam detected.\n"); |
1da177e4 LT |
1438 | name = "Philips 730 webcam"; |
1439 | type_id = 730; | |
1440 | break; | |
1441 | case 0x0311: | |
2b455db6 | 1442 | PWC_INFO("Philips PCVC740K (ToUCam Pro)/PCVC840 (ToUCam II) USB webcam detected.\n"); |
1da177e4 LT |
1443 | name = "Philips 740 webcam"; |
1444 | type_id = 740; | |
1445 | break; | |
1446 | case 0x0312: | |
2b455db6 | 1447 | PWC_INFO("Philips PCVC750K (ToUCam Pro Scan) USB webcam detected.\n"); |
1da177e4 LT |
1448 | name = "Philips 750 webcam"; |
1449 | type_id = 750; | |
1450 | break; | |
1451 | case 0x0313: | |
2b455db6 | 1452 | PWC_INFO("Philips PCVC720K/40 (ToUCam XS) USB webcam detected.\n"); |
1da177e4 LT |
1453 | name = "Philips 720K/40 webcam"; |
1454 | type_id = 720; | |
1455 | break; | |
2b455db6 LS |
1456 | case 0x0329: |
1457 | PWC_INFO("Philips SPC 900NC USB webcam detected.\n"); | |
1458 | name = "Philips SPC 900NC webcam"; | |
9ee6d78c | 1459 | type_id = 740; |
2b455db6 | 1460 | break; |
1da177e4 LT |
1461 | default: |
1462 | return -ENODEV; | |
1463 | break; | |
1464 | } | |
1465 | } | |
1466 | else if (vendor_id == 0x069A) { | |
1467 | switch(product_id) { | |
1468 | case 0x0001: | |
2b455db6 | 1469 | PWC_INFO("Askey VC010 type 1 USB webcam detected.\n"); |
1da177e4 LT |
1470 | name = "Askey VC010 webcam"; |
1471 | type_id = 645; | |
1472 | break; | |
1473 | default: | |
1474 | return -ENODEV; | |
1475 | break; | |
1476 | } | |
1477 | } | |
1478 | else if (vendor_id == 0x046d) { | |
1479 | switch(product_id) { | |
1480 | case 0x08b0: | |
2b455db6 | 1481 | PWC_INFO("Logitech QuickCam Pro 3000 USB webcam detected.\n"); |
1da177e4 LT |
1482 | name = "Logitech QuickCam Pro 3000"; |
1483 | type_id = 740; /* CCD sensor */ | |
1484 | break; | |
1485 | case 0x08b1: | |
2b455db6 | 1486 | PWC_INFO("Logitech QuickCam Notebook Pro USB webcam detected.\n"); |
1da177e4 LT |
1487 | name = "Logitech QuickCam Notebook Pro"; |
1488 | type_id = 740; /* CCD sensor */ | |
1489 | break; | |
1490 | case 0x08b2: | |
2b455db6 | 1491 | PWC_INFO("Logitech QuickCam 4000 Pro USB webcam detected.\n"); |
1da177e4 LT |
1492 | name = "Logitech QuickCam Pro 4000"; |
1493 | type_id = 740; /* CCD sensor */ | |
1494 | break; | |
1495 | case 0x08b3: | |
2b455db6 | 1496 | PWC_INFO("Logitech QuickCam Zoom USB webcam detected.\n"); |
1da177e4 LT |
1497 | name = "Logitech QuickCam Zoom"; |
1498 | type_id = 740; /* CCD sensor */ | |
1499 | break; | |
1500 | case 0x08B4: | |
2b455db6 | 1501 | PWC_INFO("Logitech QuickCam Zoom (new model) USB webcam detected.\n"); |
1da177e4 LT |
1502 | name = "Logitech QuickCam Zoom"; |
1503 | type_id = 740; /* CCD sensor */ | |
2b455db6 | 1504 | power_save = 1; |
1da177e4 LT |
1505 | break; |
1506 | case 0x08b5: | |
2b455db6 | 1507 | PWC_INFO("Logitech QuickCam Orbit/Sphere USB webcam detected.\n"); |
1da177e4 LT |
1508 | name = "Logitech QuickCam Orbit"; |
1509 | type_id = 740; /* CCD sensor */ | |
1510 | features |= FEATURE_MOTOR_PANTILT; | |
1511 | break; | |
1512 | case 0x08b6: | |
a63e157f JT |
1513 | PWC_INFO("Logitech/Cisco VT Camera webcam detected.\n"); |
1514 | name = "Cisco VT Camera"; | |
1515 | type_id = 740; /* CCD sensor */ | |
1516 | break; | |
1da177e4 | 1517 | case 0x08b7: |
6b1ce3c1 MCC |
1518 | PWC_INFO("Logitech ViewPort AV 100 webcam detected.\n"); |
1519 | name = "Logitech ViewPort AV 100"; | |
1520 | type_id = 740; /* CCD sensor */ | |
1521 | break; | |
1522 | case 0x08b8: /* Where this released? */ | |
2b455db6 | 1523 | PWC_INFO("Logitech QuickCam detected (reserved ID).\n"); |
1da177e4 LT |
1524 | name = "Logitech QuickCam (res.)"; |
1525 | type_id = 730; /* Assuming CMOS */ | |
1526 | break; | |
d56410e0 | 1527 | default: |
1da177e4 | 1528 | return -ENODEV; |
d56410e0 MCC |
1529 | break; |
1530 | } | |
1531 | } | |
1da177e4 LT |
1532 | else if (vendor_id == 0x055d) { |
1533 | /* I don't know the difference between the C10 and the C30; | |
1534 | I suppose the difference is the sensor, but both cameras | |
1535 | work equally well with a type_id of 675 | |
1536 | */ | |
1537 | switch(product_id) { | |
1538 | case 0x9000: | |
2b455db6 | 1539 | PWC_INFO("Samsung MPC-C10 USB webcam detected.\n"); |
1da177e4 LT |
1540 | name = "Samsung MPC-C10"; |
1541 | type_id = 675; | |
1542 | break; | |
1543 | case 0x9001: | |
2b455db6 | 1544 | PWC_INFO("Samsung MPC-C30 USB webcam detected.\n"); |
1da177e4 LT |
1545 | name = "Samsung MPC-C30"; |
1546 | type_id = 675; | |
1547 | break; | |
2b455db6 LS |
1548 | case 0x9002: |
1549 | PWC_INFO("Samsung SNC-35E (v3.0) USB webcam detected.\n"); | |
1550 | name = "Samsung MPC-C30"; | |
1551 | type_id = 740; | |
1552 | break; | |
1da177e4 LT |
1553 | default: |
1554 | return -ENODEV; | |
1555 | break; | |
1556 | } | |
1557 | } | |
1558 | else if (vendor_id == 0x041e) { | |
1559 | switch(product_id) { | |
1560 | case 0x400c: | |
2b455db6 | 1561 | PWC_INFO("Creative Labs Webcam 5 detected.\n"); |
1da177e4 LT |
1562 | name = "Creative Labs Webcam 5"; |
1563 | type_id = 730; | |
1564 | break; | |
1565 | case 0x4011: | |
2b455db6 | 1566 | PWC_INFO("Creative Labs Webcam Pro Ex detected.\n"); |
1da177e4 LT |
1567 | name = "Creative Labs Webcam Pro Ex"; |
1568 | type_id = 740; | |
1569 | break; | |
1570 | default: | |
1571 | return -ENODEV; | |
1572 | break; | |
1573 | } | |
1574 | } | |
1575 | else if (vendor_id == 0x04cc) { | |
1576 | switch(product_id) { | |
1577 | case 0x8116: | |
2b455db6 | 1578 | PWC_INFO("Sotec Afina Eye USB webcam detected.\n"); |
1da177e4 LT |
1579 | name = "Sotec Afina Eye"; |
1580 | type_id = 730; | |
1581 | break; | |
1582 | default: | |
1583 | return -ENODEV; | |
1584 | break; | |
1585 | } | |
1586 | } | |
1587 | else if (vendor_id == 0x06be) { | |
1588 | switch(product_id) { | |
1589 | case 0x8116: | |
1590 | /* This is essentially the same cam as the Sotec Afina Eye */ | |
2b455db6 | 1591 | PWC_INFO("AME Co. Afina Eye USB webcam detected.\n"); |
1da177e4 LT |
1592 | name = "AME Co. Afina Eye"; |
1593 | type_id = 750; | |
1594 | break; | |
1595 | default: | |
1596 | return -ENODEV; | |
1597 | break; | |
1598 | } | |
d56410e0 | 1599 | |
1da177e4 LT |
1600 | } |
1601 | else if (vendor_id == 0x0d81) { | |
1602 | switch(product_id) { | |
1603 | case 0x1900: | |
2b455db6 | 1604 | PWC_INFO("Visionite VCS-UC300 USB webcam detected.\n"); |
1da177e4 LT |
1605 | name = "Visionite VCS-UC300"; |
1606 | type_id = 740; /* CCD sensor */ | |
1607 | break; | |
1608 | case 0x1910: | |
2b455db6 | 1609 | PWC_INFO("Visionite VCS-UM100 USB webcam detected.\n"); |
1da177e4 LT |
1610 | name = "Visionite VCS-UM100"; |
1611 | type_id = 730; /* CMOS sensor */ | |
1612 | break; | |
1613 | default: | |
1614 | return -ENODEV; | |
1615 | break; | |
1616 | } | |
1617 | } | |
d56410e0 | 1618 | else |
1da177e4 LT |
1619 | return -ENODEV; /* Not any of the know types; but the list keeps growing. */ |
1620 | ||
1621 | memset(serial_number, 0, 30); | |
1622 | usb_string(udev, udev->descriptor.iSerialNumber, serial_number, 29); | |
2b455db6 | 1623 | PWC_DEBUG_PROBE("Device serial number is %s\n", serial_number); |
1da177e4 LT |
1624 | |
1625 | if (udev->descriptor.bNumConfigurations > 1) | |
2b455db6 | 1626 | PWC_WARNING("Warning: more than 1 configuration available.\n"); |
1da177e4 LT |
1627 | |
1628 | /* Allocate structure, initialize pointers, mutexes, etc. and link it to the usb_device */ | |
80b6ca48 | 1629 | pdev = kzalloc(sizeof(struct pwc_device), GFP_KERNEL); |
1da177e4 | 1630 | if (pdev == NULL) { |
2b455db6 | 1631 | PWC_ERROR("Oops, could not allocate memory for pwc_device.\n"); |
1da177e4 LT |
1632 | return -ENOMEM; |
1633 | } | |
1da177e4 LT |
1634 | pdev->type = type_id; |
1635 | pdev->vsize = default_size; | |
1636 | pdev->vframes = default_fps; | |
1637 | strcpy(pdev->serial, serial_number); | |
1638 | pdev->features = features; | |
89dec01b | 1639 | if (vendor_id == 0x046D && product_id == 0x08B5) { |
1da177e4 | 1640 | /* Logitech QuickCam Orbit |
d56410e0 MCC |
1641 | The ranges have been determined experimentally; they may differ from cam to cam. |
1642 | Also, the exact ranges left-right and up-down are different for my cam | |
1643 | */ | |
1da177e4 LT |
1644 | pdev->angle_range.pan_min = -7000; |
1645 | pdev->angle_range.pan_max = 7000; | |
1646 | pdev->angle_range.tilt_min = -3000; | |
1647 | pdev->angle_range.tilt_max = 2500; | |
1648 | } | |
1649 | ||
b9378fdb | 1650 | mutex_init(&pdev->modlock); |
1da177e4 LT |
1651 | spin_lock_init(&pdev->ptrlock); |
1652 | ||
1653 | pdev->udev = udev; | |
1654 | init_waitqueue_head(&pdev->frameq); | |
1655 | pdev->vcompression = pwc_preferred_compression; | |
1656 | ||
9a7b2d1f HG |
1657 | /* Init video_device structure */ |
1658 | memcpy(&pdev->vdev, &pwc_template, sizeof(pwc_template)); | |
1659 | pdev->vdev.parent = &intf->dev; | |
1660 | pdev->vdev.lock = &pdev->modlock; | |
1661 | strcpy(pdev->vdev.name, name); | |
1662 | video_set_drvdata(&pdev->vdev, pdev); | |
1da177e4 LT |
1663 | |
1664 | pdev->release = le16_to_cpu(udev->descriptor.bcdDevice); | |
2b455db6 | 1665 | PWC_DEBUG_PROBE("Release: %04x\n", pdev->release); |
1da177e4 LT |
1666 | |
1667 | /* Now search device_hint[] table for a match, so we can hint a node number. */ | |
1668 | for (hint = 0; hint < MAX_DEV_HINTS; hint++) { | |
1669 | if (((device_hint[hint].type == -1) || (device_hint[hint].type == pdev->type)) && | |
1670 | (device_hint[hint].pdev == NULL)) { | |
1671 | /* so far, so good... try serial number */ | |
1672 | if ((device_hint[hint].serial_number[0] == '*') || !strcmp(device_hint[hint].serial_number, serial_number)) { | |
657de3cd TP |
1673 | /* match! */ |
1674 | video_nr = device_hint[hint].device_node; | |
1675 | PWC_DEBUG_PROBE("Found hint, will try to register as /dev/video%d\n", video_nr); | |
1676 | break; | |
1da177e4 LT |
1677 | } |
1678 | } | |
1679 | } | |
1680 | ||
1da177e4 | 1681 | /* occupy slot */ |
d56410e0 | 1682 | if (hint < MAX_DEV_HINTS) |
1da177e4 LT |
1683 | device_hint[hint].pdev = pdev; |
1684 | ||
2b455db6 | 1685 | PWC_DEBUG_PROBE("probe() function returning struct at 0x%p.\n", pdev); |
89dec01b | 1686 | usb_set_intfdata(intf, pdev); |
2b455db6 LS |
1687 | |
1688 | /* Set the leds off */ | |
1689 | pwc_set_leds(pdev, 0, 0); | |
1690 | pwc_camera_power(pdev, 0); | |
1691 | ||
9a7b2d1f | 1692 | rc = video_register_device(&pdev->vdev, VFL_TYPE_GRABBER, video_nr); |
479567ce HV |
1693 | if (rc < 0) { |
1694 | PWC_ERROR("Failed to register as video device (%d).\n", rc); | |
9a7b2d1f | 1695 | goto err_free_mem; |
479567ce | 1696 | } |
9a7b2d1f | 1697 | rc = pwc_create_sysfs_files(pdev); |
479567ce HV |
1698 | if (rc) |
1699 | goto err_video_unreg; | |
1700 | ||
9a7b2d1f | 1701 | PWC_INFO("Registered as %s.\n", video_device_node_name(&pdev->vdev)); |
479567ce | 1702 | |
e32a7ecc NPT |
1703 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV |
1704 | /* register webcam snapshot button input device */ | |
1705 | pdev->button_dev = input_allocate_device(); | |
1706 | if (!pdev->button_dev) { | |
1707 | PWC_ERROR("Err, insufficient memory for webcam snapshot button device."); | |
89dec01b | 1708 | rc = -ENOMEM; |
9a7b2d1f | 1709 | pwc_remove_sysfs_files(pdev); |
89dec01b | 1710 | goto err_video_unreg; |
e32a7ecc NPT |
1711 | } |
1712 | ||
89dec01b DT |
1713 | usb_make_path(udev, pdev->button_phys, sizeof(pdev->button_phys)); |
1714 | strlcat(pdev->button_phys, "/input0", sizeof(pdev->button_phys)); | |
1715 | ||
e32a7ecc | 1716 | pdev->button_dev->name = "PWC snapshot button"; |
89dec01b | 1717 | pdev->button_dev->phys = pdev->button_phys; |
e32a7ecc NPT |
1718 | usb_to_input_id(pdev->udev, &pdev->button_dev->id); |
1719 | pdev->button_dev->dev.parent = &pdev->udev->dev; | |
1720 | pdev->button_dev->evbit[0] = BIT_MASK(EV_KEY); | |
bcd3e4b3 | 1721 | pdev->button_dev->keybit[BIT_WORD(KEY_CAMERA)] = BIT_MASK(KEY_CAMERA); |
e32a7ecc NPT |
1722 | |
1723 | rc = input_register_device(pdev->button_dev); | |
1724 | if (rc) { | |
1725 | input_free_device(pdev->button_dev); | |
e32a7ecc | 1726 | pdev->button_dev = NULL; |
9a7b2d1f | 1727 | pwc_remove_sysfs_files(pdev); |
89dec01b | 1728 | goto err_video_unreg; |
e32a7ecc NPT |
1729 | } |
1730 | #endif | |
1731 | ||
1da177e4 | 1732 | return 0; |
c12e3be0 | 1733 | |
89dec01b | 1734 | err_video_unreg: |
c12e3be0 JG |
1735 | if (hint < MAX_DEV_HINTS) |
1736 | device_hint[hint].pdev = NULL; | |
9a7b2d1f | 1737 | video_unregister_device(&pdev->vdev); |
89dec01b DT |
1738 | err_free_mem: |
1739 | kfree(pdev); | |
c12e3be0 | 1740 | return rc; |
1da177e4 LT |
1741 | } |
1742 | ||
89dec01b | 1743 | /* The user yanked out the cable... */ |
1da177e4 LT |
1744 | static void usb_pwc_disconnect(struct usb_interface *intf) |
1745 | { | |
9a7b2d1f | 1746 | struct pwc_device *pdev = usb_get_intfdata(intf); |
1da177e4 | 1747 | |
7074f407 | 1748 | mutex_lock(&pdev->modlock); |
1da177e4 | 1749 | usb_set_intfdata (intf, NULL); |
d56410e0 | 1750 | |
1da177e4 | 1751 | /* We got unplugged; this is signalled by an EPIPE error code */ |
9a7b2d1f HG |
1752 | pdev->error_status = EPIPE; |
1753 | pdev->unplugged = 1; | |
1da177e4 LT |
1754 | |
1755 | /* Alert waiting processes */ | |
1756 | wake_up_interruptible(&pdev->frameq); | |
1da177e4 | 1757 | |
9a7b2d1f HG |
1758 | /* No need to keep the urbs around after disconnection */ |
1759 | pwc_isoc_cleanup(pdev); | |
1da177e4 | 1760 | |
7074f407 | 1761 | mutex_unlock(&pdev->modlock); |
9a7b2d1f HG |
1762 | |
1763 | pwc_remove_sysfs_files(pdev); | |
1764 | video_unregister_device(&pdev->vdev); | |
1765 | ||
1766 | #ifdef CONFIG_USB_PWC_INPUT_EVDEV | |
1767 | if (pdev->button_dev) | |
1768 | input_unregister_device(pdev->button_dev); | |
1769 | #endif | |
1da177e4 LT |
1770 | } |
1771 | ||
1da177e4 | 1772 | |
d56410e0 MCC |
1773 | /* |
1774 | * Initialization code & module stuff | |
1da177e4 LT |
1775 | */ |
1776 | ||
2b455db6 LS |
1777 | static char *size; |
1778 | static int fps; | |
1779 | static int fbufs; | |
1780 | static int mbufs; | |
1da177e4 LT |
1781 | static int compression = -1; |
1782 | static int leds[2] = { -1, -1 }; | |
64a6f950 | 1783 | static unsigned int leds_nargs; |
2b455db6 | 1784 | static char *dev_hint[MAX_DEV_HINTS]; |
64a6f950 | 1785 | static unsigned int dev_hint_nargs; |
2b455db6 LS |
1786 | |
1787 | module_param(size, charp, 0444); | |
1788 | module_param(fps, int, 0444); | |
1789 | module_param(fbufs, int, 0444); | |
1790 | module_param(mbufs, int, 0444); | |
05ad3907 | 1791 | #ifdef CONFIG_USB_PWC_DEBUG |
2b455db6 LS |
1792 | module_param_named(trace, pwc_trace, int, 0644); |
1793 | #endif | |
1794 | module_param(power_save, int, 0444); | |
1795 | module_param(compression, int, 0444); | |
1796 | module_param_array(leds, int, &leds_nargs, 0444); | |
1797 | module_param_array(dev_hint, charp, &dev_hint_nargs, 0444); | |
1da177e4 | 1798 | |
1da177e4 | 1799 | MODULE_PARM_DESC(size, "Initial image size. One of sqcif, qsif, qcif, sif, cif, vga"); |
1da177e4 | 1800 | MODULE_PARM_DESC(fps, "Initial frames per second. Varies with model, useful range 5-30"); |
1da177e4 | 1801 | MODULE_PARM_DESC(fbufs, "Number of internal frame buffers to reserve"); |
1da177e4 | 1802 | MODULE_PARM_DESC(mbufs, "Number of external (mmap()ed) image buffers"); |
4315c414 | 1803 | #ifdef CONFIG_USB_PWC_DEBUG |
1da177e4 | 1804 | MODULE_PARM_DESC(trace, "For debugging purposes"); |
4315c414 | 1805 | #endif |
1da177e4 | 1806 | MODULE_PARM_DESC(power_save, "Turn power save feature in camera on or off"); |
1da177e4 | 1807 | MODULE_PARM_DESC(compression, "Preferred compression quality. Range 0 (uncompressed) to 3 (high compression)"); |
1da177e4 | 1808 | MODULE_PARM_DESC(leds, "LED on,off time in milliseconds"); |
1da177e4 LT |
1809 | MODULE_PARM_DESC(dev_hint, "Device node hints"); |
1810 | ||
1811 | MODULE_DESCRIPTION("Philips & OEM USB webcam driver"); | |
1812 | MODULE_AUTHOR("Luc Saillard <luc@saillard.org>"); | |
1813 | MODULE_LICENSE("GPL"); | |
2b455db6 LS |
1814 | MODULE_ALIAS("pwcx"); |
1815 | MODULE_VERSION( PWC_VERSION ); | |
1da177e4 LT |
1816 | |
1817 | static int __init usb_pwc_init(void) | |
1818 | { | |
1819 | int i, sz; | |
1820 | char *sizenames[PSZ_MAX] = { "sqcif", "qsif", "qcif", "sif", "cif", "vga" }; | |
1821 | ||
2b455db6 LS |
1822 | PWC_INFO("Philips webcam module version " PWC_VERSION " loaded.\n"); |
1823 | PWC_INFO("Supports Philips PCA645/646, PCVC675/680/690, PCVC720[40]/730/740/750 & PCVC830/840.\n"); | |
1824 | PWC_INFO("Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10 and MPC-C30,\n"); | |
1825 | PWC_INFO("the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite VCS-UC300 and VCS-UM100.\n"); | |
1da177e4 LT |
1826 | |
1827 | if (fps) { | |
1828 | if (fps < 4 || fps > 30) { | |
2b455db6 | 1829 | PWC_ERROR("Framerate out of bounds (4-30).\n"); |
1da177e4 LT |
1830 | return -EINVAL; |
1831 | } | |
1832 | default_fps = fps; | |
2b455db6 | 1833 | PWC_DEBUG_MODULE("Default framerate set to %d.\n", default_fps); |
1da177e4 LT |
1834 | } |
1835 | ||
2b455db6 | 1836 | if (size) { |
1da177e4 LT |
1837 | /* string; try matching with array */ |
1838 | for (sz = 0; sz < PSZ_MAX; sz++) { | |
1839 | if (!strcmp(sizenames[sz], size)) { /* Found! */ | |
1840 | default_size = sz; | |
1841 | break; | |
1842 | } | |
1843 | } | |
1844 | if (sz == PSZ_MAX) { | |
2b455db6 | 1845 | PWC_ERROR("Size not recognized; try size=[sqcif | qsif | qcif | sif | cif | vga].\n"); |
1da177e4 LT |
1846 | return -EINVAL; |
1847 | } | |
2b455db6 | 1848 | PWC_DEBUG_MODULE("Default image size set to %s [%dx%d].\n", sizenames[default_size], pwc_image_sizes[default_size].x, pwc_image_sizes[default_size].y); |
1da177e4 LT |
1849 | } |
1850 | if (mbufs) { | |
1851 | if (mbufs < 1 || mbufs > MAX_IMAGES) { | |
2b455db6 | 1852 | PWC_ERROR("Illegal number of mmap() buffers; use a number between 1 and %d.\n", MAX_IMAGES); |
1da177e4 LT |
1853 | return -EINVAL; |
1854 | } | |
2b455db6 LS |
1855 | pwc_mbufs = mbufs; |
1856 | PWC_DEBUG_MODULE("Number of image buffers set to %d.\n", pwc_mbufs); | |
1da177e4 LT |
1857 | } |
1858 | if (fbufs) { | |
1859 | if (fbufs < 2 || fbufs > MAX_FRAMES) { | |
2b455db6 | 1860 | PWC_ERROR("Illegal number of frame buffers; use a number between 2 and %d.\n", MAX_FRAMES); |
1da177e4 LT |
1861 | return -EINVAL; |
1862 | } | |
1863 | default_fbufs = fbufs; | |
2b455db6 | 1864 | PWC_DEBUG_MODULE("Number of frame buffers set to %d.\n", default_fbufs); |
1da177e4 | 1865 | } |
05ad3907 | 1866 | #ifdef CONFIG_USB_PWC_DEBUG |
2b455db6 LS |
1867 | if (pwc_trace >= 0) { |
1868 | PWC_DEBUG_MODULE("Trace options: 0x%04x\n", pwc_trace); | |
1da177e4 | 1869 | } |
2b455db6 | 1870 | #endif |
1da177e4 LT |
1871 | if (compression >= 0) { |
1872 | if (compression > 3) { | |
2b455db6 | 1873 | PWC_ERROR("Invalid compression setting; use a number between 0 (uncompressed) and 3 (high).\n"); |
1da177e4 LT |
1874 | return -EINVAL; |
1875 | } | |
1876 | pwc_preferred_compression = compression; | |
2b455db6 | 1877 | PWC_DEBUG_MODULE("Preferred compression set to %d.\n", pwc_preferred_compression); |
1da177e4 LT |
1878 | } |
1879 | if (power_save) | |
2b455db6 | 1880 | PWC_DEBUG_MODULE("Enabling power save on open/close.\n"); |
1da177e4 LT |
1881 | if (leds[0] >= 0) |
1882 | led_on = leds[0]; | |
1883 | if (leds[1] >= 0) | |
1884 | led_off = leds[1]; | |
1885 | ||
093cf723 | 1886 | /* Big device node whoopla. Basically, it allows you to assign a |
1da177e4 LT |
1887 | device node (/dev/videoX) to a camera, based on its type |
1888 | & serial number. The format is [type[.serialnumber]:]node. | |
1889 | ||
1890 | Any camera that isn't matched by these rules gets the next | |
1891 | available free device node. | |
1892 | */ | |
1893 | for (i = 0; i < MAX_DEV_HINTS; i++) { | |
1894 | char *s, *colon, *dot; | |
1895 | ||
1896 | /* This loop also initializes the array */ | |
1897 | device_hint[i].pdev = NULL; | |
1898 | s = dev_hint[i]; | |
1899 | if (s != NULL && *s != '\0') { | |
1900 | device_hint[i].type = -1; /* wildcard */ | |
1901 | strcpy(device_hint[i].serial_number, "*"); | |
1902 | ||
1903 | /* parse string: chop at ':' & '/' */ | |
1904 | colon = dot = s; | |
1905 | while (*colon != '\0' && *colon != ':') | |
1906 | colon++; | |
1907 | while (*dot != '\0' && *dot != '.') | |
1908 | dot++; | |
1909 | /* Few sanity checks */ | |
1910 | if (*dot != '\0' && dot > colon) { | |
2b455db6 | 1911 | PWC_ERROR("Malformed camera hint: the colon must be after the dot.\n"); |
1da177e4 LT |
1912 | return -EINVAL; |
1913 | } | |
1914 | ||
1915 | if (*colon == '\0') { | |
1916 | /* No colon */ | |
1917 | if (*dot != '\0') { | |
2b455db6 | 1918 | PWC_ERROR("Malformed camera hint: no colon + device node given.\n"); |
1da177e4 LT |
1919 | return -EINVAL; |
1920 | } | |
1921 | else { | |
1922 | /* No type or serial number specified, just a number. */ | |
2d8d7762 AS |
1923 | device_hint[i].device_node = |
1924 | simple_strtol(s, NULL, 10); | |
1da177e4 LT |
1925 | } |
1926 | } | |
1927 | else { | |
1928 | /* There's a colon, so we have at least a type and a device node */ | |
2d8d7762 AS |
1929 | device_hint[i].type = |
1930 | simple_strtol(s, NULL, 10); | |
1931 | device_hint[i].device_node = | |
1932 | simple_strtol(colon + 1, NULL, 10); | |
1da177e4 LT |
1933 | if (*dot != '\0') { |
1934 | /* There's a serial number as well */ | |
1935 | int k; | |
d56410e0 | 1936 | |
1da177e4 LT |
1937 | dot++; |
1938 | k = 0; | |
1939 | while (*dot != ':' && k < 29) { | |
1940 | device_hint[i].serial_number[k++] = *dot; | |
1941 | dot++; | |
1942 | } | |
1943 | device_hint[i].serial_number[k] = '\0'; | |
1944 | } | |
1945 | } | |
2b455db6 LS |
1946 | PWC_TRACE("device_hint[%d]:\n", i); |
1947 | PWC_TRACE(" type : %d\n", device_hint[i].type); | |
1948 | PWC_TRACE(" serial# : %s\n", device_hint[i].serial_number); | |
1949 | PWC_TRACE(" node : %d\n", device_hint[i].device_node); | |
1da177e4 LT |
1950 | } |
1951 | else | |
1952 | device_hint[i].type = 0; /* not filled */ | |
1953 | } /* ..for MAX_DEV_HINTS */ | |
1954 | ||
2b455db6 | 1955 | PWC_DEBUG_PROBE("Registering driver at address 0x%p.\n", &pwc_driver); |
1da177e4 LT |
1956 | return usb_register(&pwc_driver); |
1957 | } | |
1958 | ||
1959 | static void __exit usb_pwc_exit(void) | |
1960 | { | |
2b455db6 | 1961 | PWC_DEBUG_MODULE("Deregistering driver.\n"); |
1da177e4 | 1962 | usb_deregister(&pwc_driver); |
2b455db6 | 1963 | PWC_INFO("Philips webcam module removed.\n"); |
1da177e4 LT |
1964 | } |
1965 | ||
1966 | module_init(usb_pwc_init); | |
1967 | module_exit(usb_pwc_exit); | |
1968 | ||
2b455db6 | 1969 | /* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */ |