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483dfdb6 | 1 | /* |
7ca659e3 | 2 | * USB USBVISION Video device driver 0.9.9 |
483dfdb6 TM |
3 | * |
4 | * | |
5 | * | |
6 | * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> | |
7 | * | |
8 | * This module is part of usbvision driver project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | * Let's call the version 0.... until compression decoding is completely | |
25 | * implemented. | |
26 | * | |
27 | * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach. | |
28 | * It was based on USB CPiA driver written by Peter Pregler, | |
29 | * Scott J. Bertin and Johannes Erdfelt | |
30 | * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler & | |
31 | * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink | |
32 | * Updates to driver completed by Dwaine P. Garden | |
33 | * | |
34 | * | |
35 | * TODO: | |
36 | * - use submit_urb for all setup packets | |
37 | * - Fix memory settings for nt1004. It is 4 times as big as the | |
38 | * nt1003 memory. | |
39 | * - Add audio on endpoint 3 for nt1004 chip. Seems impossible, needs a codec interface. Which one? | |
40 | * - Clean up the driver. | |
41 | * - optimization for performance. | |
42 | * - Add Videotext capability (VBI). Working on it..... | |
43 | * - Check audio for other devices | |
44 | * | |
45 | */ | |
46 | ||
f30ebd43 | 47 | #include <linux/version.h> |
483dfdb6 | 48 | #include <linux/kernel.h> |
483dfdb6 TM |
49 | #include <linux/list.h> |
50 | #include <linux/timer.h> | |
51 | #include <linux/slab.h> | |
52 | #include <linux/mm.h> | |
53 | #include <linux/utsname.h> | |
54 | #include <linux/highmem.h> | |
483dfdb6 TM |
55 | #include <linux/videodev.h> |
56 | #include <linux/vmalloc.h> | |
57 | #include <linux/module.h> | |
58 | #include <linux/init.h> | |
59 | #include <linux/spinlock.h> | |
60 | #include <asm/io.h> | |
61 | #include <linux/videodev2.h> | |
62 | #include <linux/video_decoder.h> | |
63 | #include <linux/i2c.h> | |
64 | ||
65 | #include <media/saa7115.h> | |
66 | #include <media/v4l2-common.h> | |
67 | #include <media/tuner.h> | |
68 | #include <media/audiochip.h> | |
69 | ||
a1ed551c MCC |
70 | #include <linux/moduleparam.h> |
71 | #include <linux/workqueue.h> | |
483dfdb6 TM |
72 | |
73 | #ifdef CONFIG_KMOD | |
74 | #include <linux/kmod.h> | |
75 | #endif | |
76 | ||
77 | #include "usbvision.h" | |
659ae56d | 78 | #include "usbvision-cards.h" |
483dfdb6 TM |
79 | |
80 | #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, Dwaine Garden <DwaineGarden@rogers.com>" | |
81 | #define DRIVER_NAME "usbvision" | |
82 | #define DRIVER_ALIAS "USBVision" | |
83 | #define DRIVER_DESC "USBVision USB Video Device Driver for Linux" | |
84 | #define DRIVER_LICENSE "GPL" | |
85 | #define USBVISION_DRIVER_VERSION_MAJOR 0 | |
86 | #define USBVISION_DRIVER_VERSION_MINOR 9 | |
87 | #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9 | |
88 | #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL) | |
89 | #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) | |
90 | ||
91 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ | |
92 | ||
93 | ||
483dfdb6 TM |
94 | #ifdef USBVISION_DEBUG |
95 | #define PDEBUG(level, fmt, args...) \ | |
96 | if (video_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args) | |
97 | #else | |
98 | #define PDEBUG(level, fmt, args...) do {} while(0) | |
99 | #endif | |
100 | ||
101 | #define DBG_IOCTL 1<<0 | |
102 | #define DBG_IO 1<<1 | |
103 | #define DBG_PROBE 1<<2 | |
c876a346 | 104 | #define DBG_MMAP 1<<3 |
483dfdb6 TM |
105 | |
106 | //String operations | |
107 | #define rmspace(str) while(*str==' ') str++; | |
108 | #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++; | |
109 | ||
110 | ||
111 | static int usbvision_nr = 0; // sequential number of usbvision device | |
112 | ||
113 | static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { | |
114 | { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, | |
115 | { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, | |
116 | { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, | |
117 | { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, | |
118 | { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, | |
119 | { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, | |
120 | { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 ! | |
121 | { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } | |
122 | }; | |
123 | ||
124 | /* supported tv norms */ | |
125 | static struct usbvision_tvnorm tvnorms[] = { | |
126 | { | |
127 | .name = "PAL", | |
128 | .id = V4L2_STD_PAL, | |
129 | }, { | |
130 | .name = "NTSC", | |
131 | .id = V4L2_STD_NTSC, | |
132 | }, { | |
133 | .name = "SECAM", | |
134 | .id = V4L2_STD_SECAM, | |
135 | }, { | |
136 | .name = "PAL-M", | |
137 | .id = V4L2_STD_PAL_M, | |
138 | } | |
139 | }; | |
140 | ||
141 | #define TVNORMS ARRAY_SIZE(tvnorms) | |
142 | ||
143 | // Function prototypes | |
144 | static void usbvision_release(struct usb_usbvision *usbvision); | |
145 | ||
146 | // Default initalization of device driver parameters | |
147 | static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint | |
148 | static int video_debug = 0; // Set the default Debug Mode of the device driver | |
149 | static int PowerOnAtOpen = 1; // Set the default device to power on at startup | |
150 | static int video_nr = -1; // Sequential Number of Video Device | |
151 | static int radio_nr = -1; // Sequential Number of Radio Device | |
152 | static int vbi_nr = -1; // Sequential Number of VBI Device | |
483dfdb6 TM |
153 | |
154 | // Grab parameters for the device driver | |
155 | ||
156 | #if defined(module_param) // Showing parameters under SYSFS | |
157 | module_param(isocMode, int, 0444); | |
158 | module_param(video_debug, int, 0444); | |
159 | module_param(PowerOnAtOpen, int, 0444); | |
160 | module_param(video_nr, int, 0444); | |
161 | module_param(radio_nr, int, 0444); | |
162 | module_param(vbi_nr, int, 0444); | |
483dfdb6 TM |
163 | #else // Old Style |
164 | MODULE_PARAM(isocMode, "i"); | |
165 | MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver | |
166 | MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive | |
167 | MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup | |
168 | MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently. | |
169 | MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...) | |
170 | MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...) | |
171 | MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...) | |
483dfdb6 TM |
172 | #endif |
173 | ||
174 | MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); | |
175 | MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); | |
176 | MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)"); | |
177 | MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); | |
178 | MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); | |
179 | MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)"); | |
483dfdb6 TM |
180 | |
181 | ||
182 | // Misc stuff | |
183 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
184 | MODULE_DESCRIPTION(DRIVER_DESC); | |
185 | MODULE_LICENSE(DRIVER_LICENSE); | |
a1ed551c MCC |
186 | MODULE_VERSION(USBVISION_VERSION_STRING); |
187 | MODULE_ALIAS(DRIVER_ALIAS); | |
483dfdb6 TM |
188 | |
189 | ||
190 | /****************************************************************************************/ | |
191 | /* SYSFS Code - Copied from the stv680.c usb module. */ | |
192 | /* Device information is located at /sys/class/video4linux/video0 */ | |
193 | /* Device parameters information is located at /sys/module/usbvision */ | |
194 | /* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */ | |
195 | /****************************************************************************************/ | |
196 | ||
197 | ||
198 | #define YES_NO(x) ((x) ? "Yes" : "No") | |
199 | ||
200 | static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd) | |
201 | { | |
ed00b41d | 202 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
203 | return video_get_drvdata(vdev); |
204 | } | |
205 | ||
206 | static ssize_t show_version(struct class_device *cd, char *buf) | |
207 | { | |
208 | return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); | |
209 | } | |
210 | static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL); | |
211 | ||
ed00b41d | 212 | static ssize_t show_model(struct class_device *cd, char *buf) |
483dfdb6 | 213 | { |
ed00b41d | 214 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
215 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
216 | return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString); | |
217 | } | |
218 | static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); | |
219 | ||
ed00b41d | 220 | static ssize_t show_hue(struct class_device *cd, char *buf) |
483dfdb6 | 221 | { |
ed00b41d | 222 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
223 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
224 | struct v4l2_control ctrl; | |
225 | ctrl.id = V4L2_CID_HUE; | |
226 | ctrl.value = 0; | |
ed00b41d DG |
227 | if(usbvision->user) |
228 | call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); | |
2a9f8b5d | 229 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 TM |
230 | } |
231 | static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); | |
232 | ||
ed00b41d | 233 | static ssize_t show_contrast(struct class_device *cd, char *buf) |
483dfdb6 | 234 | { |
ed00b41d | 235 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
236 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
237 | struct v4l2_control ctrl; | |
238 | ctrl.id = V4L2_CID_CONTRAST; | |
239 | ctrl.value = 0; | |
ed00b41d DG |
240 | if(usbvision->user) |
241 | call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); | |
2a9f8b5d | 242 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 TM |
243 | } |
244 | static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); | |
245 | ||
ed00b41d | 246 | static ssize_t show_brightness(struct class_device *cd, char *buf) |
483dfdb6 | 247 | { |
ed00b41d | 248 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
249 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
250 | struct v4l2_control ctrl; | |
251 | ctrl.id = V4L2_CID_BRIGHTNESS; | |
252 | ctrl.value = 0; | |
ed00b41d DG |
253 | if(usbvision->user) |
254 | call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); | |
2a9f8b5d | 255 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 TM |
256 | } |
257 | static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); | |
258 | ||
ed00b41d | 259 | static ssize_t show_saturation(struct class_device *cd, char *buf) |
483dfdb6 | 260 | { |
ed00b41d | 261 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
262 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
263 | struct v4l2_control ctrl; | |
264 | ctrl.id = V4L2_CID_SATURATION; | |
265 | ctrl.value = 0; | |
ed00b41d DG |
266 | if(usbvision->user) |
267 | call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); | |
2a9f8b5d | 268 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 TM |
269 | } |
270 | static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); | |
271 | ||
ed00b41d | 272 | static ssize_t show_streaming(struct class_device *cd, char *buf) |
483dfdb6 | 273 | { |
ed00b41d | 274 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
275 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
276 | return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0)); | |
277 | } | |
278 | static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); | |
279 | ||
ed00b41d | 280 | static ssize_t show_compression(struct class_device *cd, char *buf) |
483dfdb6 | 281 | { |
ed00b41d | 282 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
283 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
284 | return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); | |
285 | } | |
286 | static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); | |
287 | ||
ed00b41d | 288 | static ssize_t show_device_bridge(struct class_device *cd, char *buf) |
483dfdb6 | 289 | { |
ed00b41d | 290 | struct video_device *vdev = container_of(cd, struct video_device, class_dev); |
483dfdb6 TM |
291 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
292 | return sprintf(buf, "%d\n", usbvision->bridgeType); | |
293 | } | |
294 | static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); | |
295 | ||
296 | static void usbvision_create_sysfs(struct video_device *vdev) | |
297 | { | |
298 | int res; | |
ed00b41d DG |
299 | if (!vdev) |
300 | return; | |
301 | do { | |
302 | res=class_device_create_file(&vdev->class_dev, | |
303 | &class_device_attr_version); | |
304 | if (res<0) | |
305 | break; | |
306 | res=class_device_create_file(&vdev->class_dev, | |
307 | &class_device_attr_model); | |
308 | if (res<0) | |
309 | break; | |
310 | res=class_device_create_file(&vdev->class_dev, | |
311 | &class_device_attr_hue); | |
312 | if (res<0) | |
313 | break; | |
314 | res=class_device_create_file(&vdev->class_dev, | |
315 | &class_device_attr_contrast); | |
316 | if (res<0) | |
317 | break; | |
318 | res=class_device_create_file(&vdev->class_dev, | |
319 | &class_device_attr_brightness); | |
320 | if (res<0) | |
321 | break; | |
322 | res=class_device_create_file(&vdev->class_dev, | |
323 | &class_device_attr_saturation); | |
324 | if (res<0) | |
325 | break; | |
326 | res=class_device_create_file(&vdev->class_dev, | |
327 | &class_device_attr_streaming); | |
328 | if (res<0) | |
329 | break; | |
330 | res=class_device_create_file(&vdev->class_dev, | |
331 | &class_device_attr_compression); | |
332 | if (res<0) | |
333 | break; | |
334 | res=class_device_create_file(&vdev->class_dev, | |
335 | &class_device_attr_bridge); | |
336 | if (res>=0) | |
337 | return; | |
338 | } while (0); | |
339 | ||
340 | err("%s error: %d\n", __FUNCTION__, res); | |
483dfdb6 TM |
341 | } |
342 | ||
343 | static void usbvision_remove_sysfs(struct video_device *vdev) | |
344 | { | |
345 | if (vdev) { | |
ed00b41d DG |
346 | class_device_remove_file(&vdev->class_dev, |
347 | &class_device_attr_version); | |
348 | class_device_remove_file(&vdev->class_dev, | |
349 | &class_device_attr_model); | |
350 | class_device_remove_file(&vdev->class_dev, | |
351 | &class_device_attr_hue); | |
352 | class_device_remove_file(&vdev->class_dev, | |
353 | &class_device_attr_contrast); | |
354 | class_device_remove_file(&vdev->class_dev, | |
355 | &class_device_attr_brightness); | |
356 | class_device_remove_file(&vdev->class_dev, | |
357 | &class_device_attr_saturation); | |
358 | class_device_remove_file(&vdev->class_dev, | |
359 | &class_device_attr_streaming); | |
360 | class_device_remove_file(&vdev->class_dev, | |
361 | &class_device_attr_compression); | |
362 | class_device_remove_file(&vdev->class_dev, | |
363 | &class_device_attr_bridge); | |
483dfdb6 TM |
364 | } |
365 | } | |
366 | ||
367 | ||
368 | /* | |
369 | * usbvision_open() | |
370 | * | |
371 | * This is part of Video 4 Linux API. The driver can be opened by one | |
372 | * client only (checks internal counter 'usbvision->user'). The procedure | |
373 | * then allocates buffers needed for video processing. | |
374 | * | |
375 | */ | |
376 | static int usbvision_v4l2_open(struct inode *inode, struct file *file) | |
377 | { | |
378 | struct video_device *dev = video_devdata(file); | |
379 | struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); | |
380 | int errCode = 0; | |
381 | ||
382 | PDEBUG(DBG_IO, "open"); | |
383 | ||
384 | ||
385 | usbvision_reset_powerOffTimer(usbvision); | |
386 | ||
387 | if (usbvision->user) | |
388 | errCode = -EBUSY; | |
389 | else { | |
6f78e186 TM |
390 | /* Allocate memory for the scratch ring buffer */ |
391 | errCode = usbvision_scratch_alloc(usbvision); | |
392 | if (isocMode==ISOC_MODE_COMPRESS) { | |
393 | /* Allocate intermediate decompression buffers only if needed */ | |
394 | errCode = usbvision_decompress_alloc(usbvision); | |
483dfdb6 TM |
395 | } |
396 | if (errCode) { | |
397 | /* Deallocate all buffers if trouble */ | |
483dfdb6 | 398 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
399 | usbvision_decompress_free(usbvision); |
400 | } | |
401 | } | |
402 | ||
403 | /* If so far no errors then we shall start the camera */ | |
404 | if (!errCode) { | |
405 | down(&usbvision->lock); | |
406 | if (usbvision->power == 0) { | |
407 | usbvision_power_on(usbvision); | |
1ff16c20 | 408 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
409 | } |
410 | ||
411 | /* Send init sequence only once, it's large! */ | |
412 | if (!usbvision->initialized) { | |
413 | int setup_ok = 0; | |
414 | setup_ok = usbvision_setup(usbvision,isocMode); | |
415 | if (setup_ok) | |
416 | usbvision->initialized = 1; | |
417 | else | |
418 | errCode = -EBUSY; | |
419 | } | |
420 | ||
421 | if (!errCode) { | |
422 | usbvision_begin_streaming(usbvision); | |
423 | errCode = usbvision_init_isoc(usbvision); | |
424 | /* device needs to be initialized before isoc transfer */ | |
425 | usbvision_muxsel(usbvision,0); | |
426 | usbvision->user++; | |
427 | } | |
428 | else { | |
429 | if (PowerOnAtOpen) { | |
1ff16c20 | 430 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
431 | usbvision_power_off(usbvision); |
432 | usbvision->initialized = 0; | |
433 | } | |
434 | } | |
435 | up(&usbvision->lock); | |
436 | } | |
437 | ||
438 | if (errCode) { | |
439 | } | |
440 | ||
441 | /* prepare queues */ | |
442 | usbvision_empty_framequeues(usbvision); | |
443 | ||
444 | PDEBUG(DBG_IO, "success"); | |
445 | return errCode; | |
446 | } | |
447 | ||
448 | /* | |
449 | * usbvision_v4l2_close() | |
450 | * | |
451 | * This is part of Video 4 Linux API. The procedure | |
452 | * stops streaming and deallocates all buffers that were earlier | |
453 | * allocated in usbvision_v4l2_open(). | |
454 | * | |
455 | */ | |
456 | static int usbvision_v4l2_close(struct inode *inode, struct file *file) | |
457 | { | |
458 | struct video_device *dev = video_devdata(file); | |
459 | struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); | |
460 | ||
461 | PDEBUG(DBG_IO, "close"); | |
462 | down(&usbvision->lock); | |
463 | ||
464 | usbvision_audio_off(usbvision); | |
465 | usbvision_restart_isoc(usbvision); | |
466 | usbvision_stop_isoc(usbvision); | |
467 | ||
468 | usbvision_decompress_free(usbvision); | |
38284ba3 | 469 | usbvision_frames_free(usbvision); |
6f78e186 | 470 | usbvision_empty_framequeues(usbvision); |
483dfdb6 | 471 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
472 | |
473 | usbvision->user--; | |
474 | ||
475 | if (PowerOnAtOpen) { | |
476 | /* power off in a little while to avoid off/on every close/open short sequences */ | |
477 | usbvision_set_powerOffTimer(usbvision); | |
478 | usbvision->initialized = 0; | |
479 | } | |
480 | ||
481 | up(&usbvision->lock); | |
482 | ||
483 | if (usbvision->remove_pending) { | |
de6a1b8e | 484 | printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); |
483dfdb6 TM |
485 | usbvision_release(usbvision); |
486 | } | |
487 | ||
488 | PDEBUG(DBG_IO, "success"); | |
489 | ||
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | ||
495 | /* | |
496 | * usbvision_ioctl() | |
497 | * | |
498 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
499 | * | |
500 | */ | |
501 | static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file, | |
502 | unsigned int cmd, void *arg) | |
503 | { | |
504 | struct video_device *dev = video_devdata(file); | |
505 | struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); | |
506 | ||
507 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
508 | return -EFAULT; | |
509 | ||
510 | switch (cmd) { | |
511 | ||
512 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
513 | /* ioctls to allow direct acces to the NT100x registers */ | |
52ebc763 | 514 | case VIDIOC_DBG_G_REGISTER: |
52ebc763 | 515 | case VIDIOC_DBG_S_REGISTER: |
483dfdb6 TM |
516 | { |
517 | struct v4l2_register *reg = arg; | |
518 | int errCode; | |
519 | ||
f3d092b8 | 520 | if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) |
483dfdb6 TM |
521 | return -EINVAL; |
522 | if (!capable(CAP_SYS_ADMIN)) | |
523 | return -EPERM; | |
62d50add TP |
524 | /* NT100x has a 8-bit register space */ |
525 | if (cmd == VIDIOC_DBG_G_REGISTER) | |
526 | errCode = usbvision_read_reg(usbvision, reg->reg&0xff); | |
527 | else | |
528 | errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); | |
483dfdb6 | 529 | if (errCode < 0) { |
62d50add TP |
530 | err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__, |
531 | cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode); | |
532 | return errCode; | |
483dfdb6 | 533 | } |
62d50add TP |
534 | if (cmd == VIDIOC_DBG_S_REGISTER) |
535 | reg->val = (u8)errCode; | |
536 | ||
537 | PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X", | |
538 | cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', | |
f3d092b8 | 539 | (unsigned int)reg->reg, (unsigned int)reg->val); |
483dfdb6 TM |
540 | return 0; |
541 | } | |
542 | #endif | |
543 | case VIDIOC_QUERYCAP: | |
544 | { | |
545 | struct v4l2_capability *vc=arg; | |
546 | ||
547 | memset(vc, 0, sizeof(*vc)); | |
548 | strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); | |
549 | strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, | |
550 | sizeof(vc->card)); | |
551 | strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, | |
552 | sizeof(vc->bus_info)); | |
553 | vc->version = USBVISION_DRIVER_VERSION; | |
554 | vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | | |
555 | V4L2_CAP_AUDIO | | |
556 | V4L2_CAP_READWRITE | | |
557 | V4L2_CAP_STREAMING | | |
558 | (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); | |
559 | PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP"); | |
560 | return 0; | |
561 | } | |
562 | case VIDIOC_ENUMINPUT: | |
563 | { | |
564 | struct v4l2_input *vi = arg; | |
565 | int chan; | |
566 | ||
567 | if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) | |
568 | return -EINVAL; | |
569 | if (usbvision->have_tuner) { | |
570 | chan = vi->index; | |
571 | } | |
572 | else { | |
573 | chan = vi->index + 1; //skip Television string | |
574 | } | |
575 | switch(chan) { | |
576 | case 0: | |
577 | if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { | |
578 | strcpy(vi->name, "White Video Input"); | |
579 | } | |
580 | else { | |
581 | strcpy(vi->name, "Television"); | |
582 | vi->type = V4L2_INPUT_TYPE_TUNER; | |
583 | vi->audioset = 1; | |
584 | vi->tuner = chan; | |
585 | vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM; | |
586 | } | |
587 | break; | |
588 | case 1: | |
589 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
590 | if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { | |
591 | strcpy(vi->name, "Green Video Input"); | |
592 | } | |
593 | else { | |
594 | strcpy(vi->name, "Composite Video Input"); | |
595 | } | |
596 | vi->std = V4L2_STD_PAL; | |
597 | break; | |
598 | case 2: | |
599 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
600 | if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { | |
601 | strcpy(vi->name, "Yellow Video Input"); | |
602 | } | |
603 | else { | |
604 | strcpy(vi->name, "S-Video Input"); | |
605 | } | |
606 | vi->std = V4L2_STD_PAL; | |
607 | break; | |
608 | case 3: | |
609 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
610 | strcpy(vi->name, "Red Video Input"); | |
611 | vi->std = V4L2_STD_PAL; | |
612 | break; | |
613 | } | |
614 | PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x", | |
615 | vi->name, vi->index, vi->tuner,vi->type,(int)vi->std); | |
616 | return 0; | |
617 | } | |
618 | case VIDIOC_ENUMSTD: | |
619 | { | |
620 | struct v4l2_standard *e = arg; | |
621 | unsigned int i; | |
622 | int ret; | |
623 | ||
624 | i = e->index; | |
625 | if (i >= TVNORMS) | |
626 | return -EINVAL; | |
627 | ret = v4l2_video_std_construct(e, tvnorms[e->index].id, | |
628 | tvnorms[e->index].name); | |
629 | e->index = i; | |
630 | if (ret < 0) | |
631 | return ret; | |
632 | return 0; | |
633 | } | |
634 | case VIDIOC_G_INPUT: | |
635 | { | |
636 | int *input = arg; | |
637 | *input = usbvision->ctl_input; | |
638 | return 0; | |
639 | } | |
640 | case VIDIOC_S_INPUT: | |
641 | { | |
642 | int *input = arg; | |
643 | if ((*input >= usbvision->video_inputs) || (*input < 0) ) | |
644 | return -EINVAL; | |
645 | usbvision->ctl_input = *input; | |
646 | ||
647 | down(&usbvision->lock); | |
648 | usbvision_muxsel(usbvision, usbvision->ctl_input); | |
649 | usbvision_set_input(usbvision); | |
650 | usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight); | |
651 | up(&usbvision->lock); | |
652 | return 0; | |
653 | } | |
654 | case VIDIOC_G_STD: | |
655 | { | |
656 | v4l2_std_id *id = arg; | |
657 | ||
658 | *id = usbvision->tvnorm->id; | |
659 | ||
660 | PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name); | |
661 | return 0; | |
662 | } | |
663 | case VIDIOC_S_STD: | |
664 | { | |
665 | v4l2_std_id *id = arg; | |
666 | unsigned int i; | |
667 | ||
668 | for (i = 0; i < TVNORMS; i++) | |
669 | if (*id == tvnorms[i].id) | |
670 | break; | |
671 | if (i == TVNORMS) | |
672 | for (i = 0; i < TVNORMS; i++) | |
673 | if (*id & tvnorms[i].id) | |
674 | break; | |
675 | if (i == TVNORMS) | |
676 | return -EINVAL; | |
677 | ||
678 | down(&usbvision->lock); | |
679 | usbvision->tvnorm = &tvnorms[i]; | |
680 | ||
681 | call_i2c_clients(usbvision, VIDIOC_S_STD, | |
682 | &usbvision->tvnorm->id); | |
683 | ||
684 | up(&usbvision->lock); | |
685 | ||
686 | PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name); | |
687 | return 0; | |
688 | } | |
689 | case VIDIOC_G_TUNER: | |
690 | { | |
691 | struct v4l2_tuner *vt = arg; | |
692 | ||
693 | if (!usbvision->have_tuner || vt->index) // Only tuner 0 | |
694 | return -EINVAL; | |
695 | strcpy(vt->name, "Television"); | |
696 | /* Let clients fill in the remainder of this struct */ | |
697 | call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); | |
698 | ||
699 | PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc); | |
700 | return 0; | |
701 | } | |
702 | case VIDIOC_S_TUNER: | |
703 | { | |
704 | struct v4l2_tuner *vt = arg; | |
705 | ||
706 | // Only no or one tuner for now | |
707 | if (!usbvision->have_tuner || vt->index) | |
708 | return -EINVAL; | |
709 | /* let clients handle this */ | |
710 | call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); | |
711 | ||
712 | PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER"); | |
713 | return 0; | |
714 | } | |
715 | case VIDIOC_G_FREQUENCY: | |
716 | { | |
717 | struct v4l2_frequency *freq = arg; | |
718 | ||
719 | freq->tuner = 0; // Only one tuner | |
720 | freq->type = V4L2_TUNER_ANALOG_TV; | |
721 | freq->frequency = usbvision->freq; | |
722 | PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency); | |
723 | return 0; | |
724 | } | |
725 | case VIDIOC_S_FREQUENCY: | |
726 | { | |
727 | struct v4l2_frequency *freq = arg; | |
728 | ||
729 | // Only no or one tuner for now | |
730 | if (!usbvision->have_tuner || freq->tuner) | |
731 | return -EINVAL; | |
732 | ||
733 | usbvision->freq = freq->frequency; | |
734 | call_i2c_clients(usbvision, cmd, freq); | |
735 | PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency); | |
736 | return 0; | |
737 | } | |
738 | case VIDIOC_G_AUDIO: | |
739 | { | |
740 | struct v4l2_audio *v = arg; | |
741 | memset(v,0, sizeof(v)); | |
742 | strcpy(v->name, "TV"); | |
743 | PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO"); | |
744 | return 0; | |
745 | } | |
746 | case VIDIOC_S_AUDIO: | |
747 | { | |
748 | struct v4l2_audio *v = arg; | |
749 | if(v->index) { | |
750 | return -EINVAL; | |
751 | } | |
752 | PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO"); | |
753 | return 0; | |
754 | } | |
755 | case VIDIOC_QUERYCTRL: | |
756 | { | |
757 | struct v4l2_queryctrl *ctrl = arg; | |
758 | int id=ctrl->id; | |
759 | ||
760 | memset(ctrl,0,sizeof(*ctrl)); | |
761 | ctrl->id=id; | |
762 | ||
763 | call_i2c_clients(usbvision, cmd, arg); | |
764 | ||
765 | if (ctrl->type) | |
766 | return 0; | |
767 | else | |
768 | return -EINVAL; | |
769 | ||
770 | PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); | |
771 | } | |
772 | case VIDIOC_G_CTRL: | |
773 | { | |
774 | struct v4l2_control *ctrl = arg; | |
483dfdb6 | 775 | call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); |
2a9f8b5d | 776 | PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); |
483dfdb6 TM |
777 | return 0; |
778 | } | |
779 | case VIDIOC_S_CTRL: | |
780 | { | |
781 | struct v4l2_control *ctrl = arg; | |
782 | ||
783 | PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); | |
784 | call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); | |
785 | return 0; | |
786 | } | |
787 | case VIDIOC_REQBUFS: | |
788 | { | |
789 | struct v4l2_requestbuffers *vr = arg; | |
790 | int ret; | |
791 | ||
792 | RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); | |
793 | ||
794 | // Check input validity : the user must do a VIDEO CAPTURE and MMAP method. | |
795 | if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || | |
796 | (vr->memory != V4L2_MEMORY_MMAP)) | |
797 | return -EINVAL; | |
798 | ||
799 | if(usbvision->streaming == Stream_On) { | |
800 | if ((ret = usbvision_stream_interrupt(usbvision))) | |
801 | return ret; | |
802 | } | |
803 | ||
6f78e186 | 804 | usbvision_frames_free(usbvision); |
483dfdb6 | 805 | usbvision_empty_framequeues(usbvision); |
6f78e186 | 806 | vr->count = usbvision_frames_alloc(usbvision,vr->count); |
483dfdb6 TM |
807 | |
808 | usbvision->curFrame = NULL; | |
809 | ||
810 | PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count); | |
811 | return 0; | |
812 | } | |
813 | case VIDIOC_QUERYBUF: | |
814 | { | |
815 | struct v4l2_buffer *vb = arg; | |
816 | struct usbvision_frame *frame; | |
817 | ||
818 | // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called) | |
819 | ||
820 | if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { | |
821 | return -EINVAL; | |
822 | } | |
6f78e186 | 823 | if(vb->index>=usbvision->num_frames) { |
483dfdb6 TM |
824 | return -EINVAL; |
825 | } | |
826 | // Updating the corresponding frame state | |
827 | vb->flags = 0; | |
828 | frame = &usbvision->frame[vb->index]; | |
829 | if(frame->grabstate >= FrameState_Ready) | |
830 | vb->flags |= V4L2_BUF_FLAG_QUEUED; | |
831 | if(frame->grabstate >= FrameState_Done) | |
832 | vb->flags |= V4L2_BUF_FLAG_DONE; | |
833 | if(frame->grabstate == FrameState_Unused) | |
834 | vb->flags |= V4L2_BUF_FLAG_MAPPED; | |
835 | vb->memory = V4L2_MEMORY_MMAP; | |
836 | ||
6f78e186 | 837 | vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); |
483dfdb6 TM |
838 | |
839 | vb->memory = V4L2_MEMORY_MMAP; | |
840 | vb->field = V4L2_FIELD_NONE; | |
c876a346 | 841 | vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel; |
483dfdb6 TM |
842 | vb->timestamp = usbvision->frame[vb->index].timestamp; |
843 | vb->sequence = usbvision->frame[vb->index].sequence; | |
844 | return 0; | |
845 | } | |
846 | case VIDIOC_QBUF: | |
847 | { | |
848 | struct v4l2_buffer *vb = arg; | |
849 | struct usbvision_frame *frame; | |
850 | unsigned long lock_flags; | |
851 | ||
852 | // FIXME : works only on VIDEO_CAPTURE MODE, MMAP. | |
853 | if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { | |
854 | return -EINVAL; | |
855 | } | |
6f78e186 | 856 | if(vb->index>=usbvision->num_frames) { |
483dfdb6 TM |
857 | return -EINVAL; |
858 | } | |
859 | ||
860 | frame = &usbvision->frame[vb->index]; | |
861 | ||
862 | if (frame->grabstate != FrameState_Unused) { | |
863 | return -EAGAIN; | |
864 | } | |
865 | ||
866 | /* Mark it as ready and enqueue frame */ | |
867 | frame->grabstate = FrameState_Ready; | |
868 | frame->scanstate = ScanState_Scanning; | |
869 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ | |
870 | ||
871 | vb->flags &= ~V4L2_BUF_FLAG_DONE; | |
872 | ||
873 | /* set v4l2_format index */ | |
874 | frame->v4l2_format = usbvision->palette; | |
875 | ||
876 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
877 | list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); | |
878 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
879 | ||
880 | PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index); | |
881 | return 0; | |
882 | } | |
883 | case VIDIOC_DQBUF: | |
884 | { | |
885 | struct v4l2_buffer *vb = arg; | |
886 | int ret; | |
887 | struct usbvision_frame *f; | |
888 | unsigned long lock_flags; | |
889 | ||
890 | if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
891 | return -EINVAL; | |
892 | ||
893 | if (list_empty(&(usbvision->outqueue))) { | |
894 | if (usbvision->streaming == Stream_Idle) | |
895 | return -EINVAL; | |
896 | ret = wait_event_interruptible | |
897 | (usbvision->wait_frame, | |
898 | !list_empty(&(usbvision->outqueue))); | |
899 | if (ret) | |
900 | return ret; | |
901 | } | |
902 | ||
903 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
904 | f = list_entry(usbvision->outqueue.next, | |
905 | struct usbvision_frame, frame); | |
906 | list_del(usbvision->outqueue.next); | |
907 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
908 | ||
909 | f->grabstate = FrameState_Unused; | |
910 | ||
911 | vb->memory = V4L2_MEMORY_MMAP; | |
912 | vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE; | |
913 | vb->index = f->index; | |
914 | vb->sequence = f->sequence; | |
915 | vb->timestamp = f->timestamp; | |
916 | vb->field = V4L2_FIELD_NONE; | |
917 | vb->bytesused = f->scanlength; | |
918 | ||
919 | return 0; | |
920 | } | |
921 | case VIDIOC_STREAMON: | |
922 | { | |
923 | int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
924 | ||
925 | usbvision->streaming = Stream_On; | |
926 | ||
927 | call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); | |
928 | ||
929 | PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON"); | |
930 | ||
931 | return 0; | |
932 | } | |
933 | case VIDIOC_STREAMOFF: | |
934 | { | |
935 | int *type = arg; | |
936 | int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
937 | ||
938 | if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
939 | return -EINVAL; | |
940 | ||
941 | if(usbvision->streaming == Stream_On) { | |
942 | usbvision_stream_interrupt(usbvision); | |
943 | // Stop all video streamings | |
944 | call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); | |
945 | } | |
946 | usbvision_empty_framequeues(usbvision); | |
947 | ||
948 | PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF"); | |
949 | return 0; | |
950 | } | |
951 | case VIDIOC_ENUM_FMT: | |
952 | { | |
953 | struct v4l2_fmtdesc *vfd = arg; | |
954 | ||
955 | if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { | |
956 | return -EINVAL; | |
957 | } | |
958 | vfd->flags = 0; | |
959 | vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
960 | strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); | |
961 | vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; | |
962 | memset(vfd->reserved, 0, sizeof(vfd->reserved)); | |
963 | return 0; | |
964 | } | |
965 | case VIDIOC_G_FMT: | |
966 | { | |
967 | struct v4l2_format *vf = arg; | |
968 | ||
969 | switch (vf->type) { | |
970 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
971 | { | |
972 | vf->fmt.pix.width = usbvision->curwidth; | |
973 | vf->fmt.pix.height = usbvision->curheight; | |
974 | vf->fmt.pix.pixelformat = usbvision->palette.format; | |
975 | vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel; | |
976 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; | |
977 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
978 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
c876a346 TM |
979 | PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s", |
980 | vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); | |
981 | return 0; | |
483dfdb6 | 982 | } |
483dfdb6 TM |
983 | default: |
984 | PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type); | |
985 | return -EINVAL; | |
986 | } | |
483dfdb6 TM |
987 | return 0; |
988 | } | |
989 | case VIDIOC_TRY_FMT: | |
990 | case VIDIOC_S_FMT: | |
991 | { | |
992 | struct v4l2_format *vf = arg; | |
993 | int formatIdx,ret; | |
994 | ||
995 | switch(vf->type) { | |
996 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
997 | { | |
998 | /* Find requested format in available ones */ | |
999 | for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { | |
1000 | if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) { | |
1001 | usbvision->palette = usbvision_v4l2_format[formatIdx]; | |
1002 | break; | |
1003 | } | |
1004 | } | |
1005 | /* robustness */ | |
1006 | if(formatIdx == USBVISION_SUPPORTED_PALETTES) { | |
1007 | return -EINVAL; | |
1008 | } | |
1009 | RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); | |
1010 | RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); | |
1011 | ||
c876a346 TM |
1012 | vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel; |
1013 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; | |
1014 | ||
1015 | if(cmd == VIDIOC_TRY_FMT) { | |
1016 | PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s", | |
1017 | vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); | |
1018 | return 0; | |
1019 | } | |
1020 | ||
483dfdb6 TM |
1021 | /* stop io in case it is already in progress */ |
1022 | if(usbvision->streaming == Stream_On) { | |
1023 | if ((ret = usbvision_stream_interrupt(usbvision))) | |
1024 | return ret; | |
1025 | } | |
6f78e186 | 1026 | usbvision_frames_free(usbvision); |
483dfdb6 TM |
1027 | usbvision_empty_framequeues(usbvision); |
1028 | ||
1029 | usbvision->curFrame = NULL; | |
1030 | ||
1031 | // by now we are committed to the new data... | |
1032 | down(&usbvision->lock); | |
1033 | usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); | |
1034 | up(&usbvision->lock); | |
1035 | ||
1036 | PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s", | |
1037 | vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); | |
1038 | return 0; | |
1039 | } | |
1040 | default: | |
1041 | return -EINVAL; | |
1042 | } | |
1043 | } | |
1044 | default: | |
1045 | return -ENOIOCTLCMD; | |
1046 | } | |
1047 | return 0; | |
1048 | } | |
1049 | ||
1050 | static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file, | |
1051 | unsigned int cmd, unsigned long arg) | |
1052 | { | |
1053 | return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl); | |
1054 | } | |
1055 | ||
1056 | ||
8a5ab415 | 1057 | static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, |
483dfdb6 TM |
1058 | size_t count, loff_t *ppos) |
1059 | { | |
1060 | struct video_device *dev = video_devdata(file); | |
1061 | struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); | |
1062 | int noblock = file->f_flags & O_NONBLOCK; | |
1063 | unsigned long lock_flags; | |
1064 | ||
483dfdb6 TM |
1065 | int ret,i; |
1066 | struct usbvision_frame *frame; | |
1067 | ||
1068 | PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock); | |
1069 | ||
1070 | if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) | |
1071 | return -EFAULT; | |
1072 | ||
6f78e186 TM |
1073 | /* This entry point is compatible with the mmap routines so that a user can do either |
1074 | VIDIOC_QBUF/VIDIOC_DQBUF to get frames or call read on the device. */ | |
1075 | if(!usbvision->num_frames) { | |
1076 | /* First, allocate some frames to work with if this has not been done with | |
1077 | VIDIOC_REQBUF */ | |
1078 | usbvision_frames_free(usbvision); | |
1079 | usbvision_empty_framequeues(usbvision); | |
1080 | usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); | |
1081 | } | |
1082 | ||
1083 | if(usbvision->streaming != Stream_On) { | |
1084 | /* no stream is running, make it running ! */ | |
1085 | usbvision->streaming = Stream_On; | |
1086 | call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); | |
1087 | } | |
483dfdb6 | 1088 | |
6f78e186 TM |
1089 | /* Then, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */ |
1090 | for(i=0;i<usbvision->num_frames;i++) { | |
483dfdb6 TM |
1091 | frame = &usbvision->frame[i]; |
1092 | if(frame->grabstate == FrameState_Unused) { | |
1093 | /* Mark it as ready and enqueue frame */ | |
1094 | frame->grabstate = FrameState_Ready; | |
1095 | frame->scanstate = ScanState_Scanning; | |
1096 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ | |
1097 | ||
1098 | /* set v4l2_format index */ | |
1099 | frame->v4l2_format = usbvision->palette; | |
1100 | ||
1101 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
1102 | list_add_tail(&frame->frame, &usbvision->inqueue); | |
1103 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
1104 | } | |
1105 | } | |
1106 | ||
1107 | /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ | |
1108 | if (list_empty(&(usbvision->outqueue))) { | |
1109 | if(noblock) | |
1110 | return -EAGAIN; | |
1111 | ||
1112 | ret = wait_event_interruptible | |
1113 | (usbvision->wait_frame, | |
1114 | !list_empty(&(usbvision->outqueue))); | |
1115 | if (ret) | |
1116 | return ret; | |
1117 | } | |
1118 | ||
1119 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
1120 | frame = list_entry(usbvision->outqueue.next, | |
1121 | struct usbvision_frame, frame); | |
1122 | list_del(usbvision->outqueue.next); | |
1123 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
1124 | ||
1125 | /* An error returns an empty frame */ | |
1126 | if (frame->grabstate == FrameState_Error) { | |
1127 | frame->bytes_read = 0; | |
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__, | |
1132 | frame->index, frame->bytes_read, frame->scanlength); | |
1133 | ||
1134 | /* copy bytes to user space; we allow for partials reads */ | |
1135 | if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) | |
1136 | count = frame->scanlength - frame->bytes_read; | |
1137 | ||
1138 | if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { | |
1139 | return -EFAULT; | |
1140 | } | |
1141 | ||
1142 | frame->bytes_read += count; | |
1143 | PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__, | |
1144 | (unsigned long)count, frame->bytes_read); | |
1145 | ||
1146 | // For now, forget the frame if it has not been read in one shot. | |
1147 | /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ | |
1148 | frame->bytes_read = 0; | |
1149 | ||
1150 | /* Mark it as available to be used again. */ | |
c430ca1e | 1151 | frame->grabstate = FrameState_Unused; |
483dfdb6 TM |
1152 | /* } */ |
1153 | ||
1154 | return count; | |
1155 | } | |
1156 | ||
1157 | static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) | |
1158 | { | |
1159 | unsigned long size = vma->vm_end - vma->vm_start, | |
1160 | start = vma->vm_start; | |
1161 | void *pos; | |
1162 | u32 i; | |
1163 | ||
1164 | struct video_device *dev = video_devdata(file); | |
1165 | struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); | |
1166 | ||
6f78e186 TM |
1167 | PDEBUG(DBG_MMAP, "mmap"); |
1168 | ||
483dfdb6 TM |
1169 | down(&usbvision->lock); |
1170 | ||
1171 | if (!USBVISION_IS_OPERATIONAL(usbvision)) { | |
1172 | up(&usbvision->lock); | |
1173 | return -EFAULT; | |
1174 | } | |
1175 | ||
1176 | if (!(vma->vm_flags & VM_WRITE) || | |
6f78e186 | 1177 | size != PAGE_ALIGN(usbvision->max_frame_size)) { |
483dfdb6 TM |
1178 | up(&usbvision->lock); |
1179 | return -EINVAL; | |
1180 | } | |
1181 | ||
6f78e186 TM |
1182 | for (i = 0; i < usbvision->num_frames; i++) { |
1183 | if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == vma->vm_pgoff) | |
483dfdb6 TM |
1184 | break; |
1185 | } | |
6f78e186 | 1186 | if (i == usbvision->num_frames) { |
c876a346 | 1187 | PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range"); |
483dfdb6 TM |
1188 | up(&usbvision->lock); |
1189 | return -EINVAL; | |
1190 | } | |
1191 | ||
1192 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
1193 | vma->vm_flags |= VM_IO; | |
1194 | vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ | |
1195 | ||
1196 | pos = usbvision->frame[i].data; | |
1197 | while (size > 0) { | |
1198 | ||
1199 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { | |
c876a346 | 1200 | PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); |
483dfdb6 TM |
1201 | up(&usbvision->lock); |
1202 | return -EAGAIN; | |
1203 | } | |
1204 | start += PAGE_SIZE; | |
1205 | pos += PAGE_SIZE; | |
1206 | size -= PAGE_SIZE; | |
1207 | } | |
1208 | ||
1209 | up(&usbvision->lock); | |
1210 | return 0; | |
1211 | } | |
1212 | ||
1213 | ||
1214 | /* | |
1215 | * Here comes the stuff for radio on usbvision based devices | |
1216 | * | |
1217 | */ | |
1218 | static int usbvision_radio_open(struct inode *inode, struct file *file) | |
1219 | { | |
1220 | struct video_device *dev = video_devdata(file); | |
1221 | struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); | |
1222 | struct v4l2_frequency freq; | |
1223 | int errCode = 0; | |
1224 | ||
1225 | PDEBUG(DBG_IO, "%s:", __FUNCTION__); | |
1226 | ||
1227 | down(&usbvision->lock); | |
1228 | ||
1229 | if (usbvision->user) { | |
1230 | err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__); | |
1231 | errCode = -EBUSY; | |
1232 | } | |
1233 | else { | |
1234 | if(PowerOnAtOpen) { | |
1235 | usbvision_reset_powerOffTimer(usbvision); | |
1236 | if (usbvision->power == 0) { | |
1237 | usbvision_power_on(usbvision); | |
1ff16c20 | 1238 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
1239 | } |
1240 | } | |
1241 | ||
2a9f8b5d TM |
1242 | /* Alternate interface 1 is is the biggest frame size */ |
1243 | errCode = usbvision_set_alternate(usbvision); | |
1244 | if (errCode < 0) { | |
1245 | usbvision->last_error = errCode; | |
1246 | return -EBUSY; | |
1247 | } | |
1248 | ||
483dfdb6 TM |
1249 | // If so far no errors then we shall start the radio |
1250 | usbvision->radio = 1; | |
1251 | call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); | |
1252 | freq.frequency = 1517; //SWR3 @ 94.8MHz | |
1253 | call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq); | |
1254 | usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); | |
1255 | usbvision->user++; | |
1256 | } | |
1257 | ||
1258 | if (errCode) { | |
1259 | if (PowerOnAtOpen) { | |
1ff16c20 | 1260 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
1261 | usbvision_power_off(usbvision); |
1262 | usbvision->initialized = 0; | |
1263 | } | |
1264 | } | |
1265 | up(&usbvision->lock); | |
1266 | return errCode; | |
1267 | } | |
1268 | ||
1269 | ||
1270 | static int usbvision_radio_close(struct inode *inode, struct file *file) | |
1271 | { | |
1272 | struct video_device *dev = video_devdata(file); | |
1273 | struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); | |
1274 | int errCode = 0; | |
1275 | ||
1276 | PDEBUG(DBG_IO, ""); | |
1277 | ||
1278 | down(&usbvision->lock); | |
1279 | ||
2a9f8b5d TM |
1280 | /* Set packet size to 0 */ |
1281 | usbvision->ifaceAlt=0; | |
1282 | errCode = usb_set_interface(usbvision->dev, usbvision->iface, | |
1283 | usbvision->ifaceAlt); | |
1284 | ||
483dfdb6 TM |
1285 | usbvision_audio_off(usbvision); |
1286 | usbvision->radio=0; | |
1287 | usbvision->user--; | |
1288 | ||
1289 | if (PowerOnAtOpen) { | |
1290 | usbvision_set_powerOffTimer(usbvision); | |
1291 | usbvision->initialized = 0; | |
1292 | } | |
1293 | ||
1294 | up(&usbvision->lock); | |
1295 | ||
1296 | if (usbvision->remove_pending) { | |
de6a1b8e | 1297 | printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); |
483dfdb6 TM |
1298 | usbvision_release(usbvision); |
1299 | } | |
1300 | ||
1301 | ||
1302 | PDEBUG(DBG_IO, "success"); | |
1303 | ||
1304 | return errCode; | |
1305 | } | |
1306 | ||
1307 | static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file, | |
1308 | unsigned int cmd, void *arg) | |
1309 | { | |
1310 | struct video_device *dev = video_devdata(file); | |
1311 | struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); | |
1312 | ||
1313 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1314 | return -EIO; | |
1315 | ||
1316 | switch (cmd) { | |
1317 | case VIDIOC_QUERYCAP: | |
1318 | { | |
1319 | struct v4l2_capability *vc=arg; | |
1320 | ||
1321 | memset(vc, 0, sizeof(*vc)); | |
1322 | strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); | |
1323 | strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, | |
1324 | sizeof(vc->card)); | |
1325 | strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, | |
1326 | sizeof(vc->bus_info)); | |
1327 | vc->version = USBVISION_DRIVER_VERSION; | |
1328 | vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); | |
1329 | PDEBUG(DBG_IO, "VIDIOC_QUERYCAP"); | |
1330 | return 0; | |
1331 | } | |
1332 | case VIDIOC_QUERYCTRL: | |
1333 | { | |
1334 | struct v4l2_queryctrl *ctrl = arg; | |
1335 | int id=ctrl->id; | |
1336 | ||
1337 | memset(ctrl,0,sizeof(*ctrl)); | |
1338 | ctrl->id=id; | |
1339 | ||
1340 | call_i2c_clients(usbvision, cmd, arg); | |
1341 | PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); | |
1342 | ||
1343 | if (ctrl->type) | |
1344 | return 0; | |
1345 | else | |
1346 | return -EINVAL; | |
1347 | ||
1348 | } | |
1349 | case VIDIOC_G_CTRL: | |
1350 | { | |
1351 | struct v4l2_control *ctrl = arg; | |
1352 | ||
1353 | call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); | |
1354 | PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); | |
1355 | return 0; | |
1356 | } | |
1357 | case VIDIOC_S_CTRL: | |
1358 | { | |
1359 | struct v4l2_control *ctrl = arg; | |
1360 | ||
1361 | call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); | |
1362 | PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); | |
1363 | return 0; | |
1364 | } | |
1365 | case VIDIOC_G_TUNER: | |
1366 | { | |
1367 | struct v4l2_tuner *t = arg; | |
1368 | ||
1369 | if (t->index > 0) | |
1370 | return -EINVAL; | |
1371 | ||
1372 | memset(t,0,sizeof(*t)); | |
1373 | strcpy(t->name, "Radio"); | |
1374 | t->type = V4L2_TUNER_RADIO; | |
1375 | ||
1376 | /* Let clients fill in the remainder of this struct */ | |
1377 | call_i2c_clients(usbvision,VIDIOC_G_TUNER,t); | |
1378 | PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc); | |
1379 | return 0; | |
1380 | } | |
1381 | case VIDIOC_S_TUNER: | |
1382 | { | |
1383 | struct v4l2_tuner *vt = arg; | |
1384 | ||
1385 | // Only no or one tuner for now | |
1386 | if (!usbvision->have_tuner || vt->index) | |
1387 | return -EINVAL; | |
1388 | /* let clients handle this */ | |
1389 | call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); | |
1390 | ||
1391 | PDEBUG(DBG_IO, "VIDIOC_S_TUNER"); | |
1392 | return 0; | |
1393 | } | |
1394 | case VIDIOC_G_AUDIO: | |
1395 | { | |
1396 | struct v4l2_audio *a = arg; | |
1397 | ||
1398 | memset(a,0,sizeof(*a)); | |
1399 | strcpy(a->name,"Radio"); | |
1400 | PDEBUG(DBG_IO, "VIDIOC_G_AUDIO"); | |
1401 | return 0; | |
1402 | } | |
1403 | case VIDIOC_S_AUDIO: | |
1404 | case VIDIOC_S_INPUT: | |
1405 | case VIDIOC_S_STD: | |
1406 | return 0; | |
1407 | ||
1408 | case VIDIOC_G_FREQUENCY: | |
1409 | { | |
1410 | struct v4l2_frequency *f = arg; | |
1411 | ||
1412 | memset(f,0,sizeof(*f)); | |
1413 | ||
1414 | f->type = V4L2_TUNER_RADIO; | |
1415 | f->frequency = usbvision->freq; | |
1416 | call_i2c_clients(usbvision, cmd, f); | |
1417 | PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency); | |
1418 | ||
1419 | return 0; | |
1420 | } | |
1421 | case VIDIOC_S_FREQUENCY: | |
1422 | { | |
1423 | struct v4l2_frequency *f = arg; | |
1424 | ||
1425 | if (f->tuner != 0) | |
1426 | return -EINVAL; | |
1427 | usbvision->freq = f->frequency; | |
1428 | call_i2c_clients(usbvision, cmd, f); | |
1429 | PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency); | |
1430 | ||
1431 | return 0; | |
1432 | } | |
1433 | default: | |
1434 | { | |
1435 | PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd); | |
1436 | return -ENOIOCTLCMD; | |
1437 | } | |
1438 | } | |
1439 | return 0; | |
1440 | } | |
1441 | ||
1442 | ||
1443 | static int usbvision_radio_ioctl(struct inode *inode, struct file *file, | |
1444 | unsigned int cmd, unsigned long arg) | |
1445 | { | |
1446 | return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl); | |
1447 | } | |
1448 | ||
1449 | ||
1450 | /* | |
1451 | * Here comes the stuff for vbi on usbvision based devices | |
1452 | * | |
1453 | */ | |
1454 | static int usbvision_vbi_open(struct inode *inode, struct file *file) | |
1455 | { | |
1456 | /* TODO */ | |
1457 | return -EINVAL; | |
1458 | ||
1459 | } | |
1460 | ||
1461 | static int usbvision_vbi_close(struct inode *inode, struct file *file) | |
1462 | { | |
1463 | /* TODO */ | |
1464 | return -EINVAL; | |
1465 | } | |
1466 | ||
1467 | static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, | |
1468 | unsigned int cmd, void *arg) | |
1469 | { | |
1470 | /* TODO */ | |
1471 | return -EINVAL; | |
1472 | } | |
1473 | ||
1474 | static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, | |
1475 | unsigned int cmd, unsigned long arg) | |
1476 | { | |
1477 | return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl); | |
1478 | } | |
1479 | ||
1480 | ||
1481 | // | |
1482 | // Video registration stuff | |
1483 | // | |
1484 | ||
1485 | // Video template | |
fa027c2a | 1486 | static const struct file_operations usbvision_fops = { |
483dfdb6 | 1487 | .owner = THIS_MODULE, |
483dfdb6 TM |
1488 | .open = usbvision_v4l2_open, |
1489 | .release = usbvision_v4l2_close, | |
1490 | .read = usbvision_v4l2_read, | |
1491 | .mmap = usbvision_v4l2_mmap, | |
1492 | .ioctl = usbvision_v4l2_ioctl, | |
1493 | .llseek = no_llseek, | |
1494 | }; | |
1495 | static struct video_device usbvision_video_template = { | |
483dfdb6 | 1496 | .owner = THIS_MODULE, |
483dfdb6 TM |
1497 | .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE, |
1498 | .hardware = VID_HARDWARE_USBVISION, | |
1499 | .fops = &usbvision_fops, | |
483dfdb6 TM |
1500 | .name = "usbvision-video", |
1501 | .release = video_device_release, | |
483dfdb6 TM |
1502 | .minor = -1, |
1503 | }; | |
1504 | ||
1505 | ||
1506 | // Radio template | |
fa027c2a | 1507 | static const struct file_operations usbvision_radio_fops = { |
483dfdb6 | 1508 | .owner = THIS_MODULE, |
483dfdb6 TM |
1509 | .open = usbvision_radio_open, |
1510 | .release = usbvision_radio_close, | |
1511 | .ioctl = usbvision_radio_ioctl, | |
1512 | .llseek = no_llseek, | |
1513 | }; | |
1514 | ||
1515 | static struct video_device usbvision_radio_template= | |
1516 | { | |
483dfdb6 | 1517 | .owner = THIS_MODULE, |
483dfdb6 TM |
1518 | .type = VID_TYPE_TUNER, |
1519 | .hardware = VID_HARDWARE_USBVISION, | |
1520 | .fops = &usbvision_radio_fops, | |
483dfdb6 TM |
1521 | .release = video_device_release, |
1522 | .name = "usbvision-radio", | |
483dfdb6 TM |
1523 | .minor = -1, |
1524 | }; | |
1525 | ||
1526 | ||
1527 | // vbi template | |
fa027c2a | 1528 | static const struct file_operations usbvision_vbi_fops = { |
483dfdb6 | 1529 | .owner = THIS_MODULE, |
483dfdb6 TM |
1530 | .open = usbvision_vbi_open, |
1531 | .release = usbvision_vbi_close, | |
1532 | .ioctl = usbvision_vbi_ioctl, | |
1533 | .llseek = no_llseek, | |
1534 | }; | |
1535 | ||
1536 | static struct video_device usbvision_vbi_template= | |
1537 | { | |
483dfdb6 | 1538 | .owner = THIS_MODULE, |
483dfdb6 TM |
1539 | .type = VID_TYPE_TUNER, |
1540 | .hardware = VID_HARDWARE_USBVISION, | |
1541 | .fops = &usbvision_vbi_fops, | |
483dfdb6 TM |
1542 | .release = video_device_release, |
1543 | .name = "usbvision-vbi", | |
483dfdb6 TM |
1544 | .minor = -1, |
1545 | }; | |
1546 | ||
1547 | ||
1548 | static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, | |
1549 | struct video_device *vdev_template, | |
1550 | char *name) | |
1551 | { | |
1552 | struct usb_device *usb_dev = usbvision->dev; | |
1553 | struct video_device *vdev; | |
1554 | ||
1555 | if (usb_dev == NULL) { | |
1556 | err("%s: usbvision->dev is not set", __FUNCTION__); | |
1557 | return NULL; | |
1558 | } | |
1559 | ||
1560 | vdev = video_device_alloc(); | |
1561 | if (NULL == vdev) { | |
1562 | return NULL; | |
1563 | } | |
1564 | *vdev = *vdev_template; | |
1565 | // vdev->minor = -1; | |
1566 | vdev->dev = &usb_dev->dev; | |
1567 | snprintf(vdev->name, sizeof(vdev->name), "%s", name); | |
1568 | video_set_drvdata(vdev, usbvision); | |
1569 | return vdev; | |
1570 | } | |
1571 | ||
1572 | // unregister video4linux devices | |
1573 | static void usbvision_unregister_video(struct usb_usbvision *usbvision) | |
1574 | { | |
1575 | // vbi Device: | |
1576 | if (usbvision->vbi) { | |
1577 | PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f); | |
1578 | if (usbvision->vbi->minor != -1) { | |
1579 | video_unregister_device(usbvision->vbi); | |
1580 | } | |
1581 | else { | |
1582 | video_device_release(usbvision->vbi); | |
1583 | } | |
1584 | usbvision->vbi = NULL; | |
1585 | } | |
1586 | ||
1587 | // Radio Device: | |
1588 | if (usbvision->rdev) { | |
1589 | PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f); | |
1590 | if (usbvision->rdev->minor != -1) { | |
1591 | video_unregister_device(usbvision->rdev); | |
1592 | } | |
1593 | else { | |
1594 | video_device_release(usbvision->rdev); | |
1595 | } | |
1596 | usbvision->rdev = NULL; | |
1597 | } | |
1598 | ||
1599 | // Video Device: | |
1600 | if (usbvision->vdev) { | |
1601 | PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f); | |
1602 | if (usbvision->vdev->minor != -1) { | |
1603 | video_unregister_device(usbvision->vdev); | |
1604 | } | |
1605 | else { | |
1606 | video_device_release(usbvision->vdev); | |
1607 | } | |
1608 | usbvision->vdev = NULL; | |
1609 | } | |
1610 | } | |
1611 | ||
1612 | // register video4linux devices | |
1613 | static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) | |
1614 | { | |
1615 | // Video Device: | |
1616 | usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video"); | |
1617 | if (usbvision->vdev == NULL) { | |
1618 | goto err_exit; | |
1619 | } | |
1620 | if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) { | |
1621 | goto err_exit; | |
1622 | } | |
de6a1b8e | 1623 | printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f); |
483dfdb6 TM |
1624 | |
1625 | // Radio Device: | |
1626 | if (usbvision_device_data[usbvision->DevModel].Radio) { | |
1627 | // usbvision has radio | |
1628 | usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio"); | |
1629 | if (usbvision->rdev == NULL) { | |
1630 | goto err_exit; | |
1631 | } | |
1632 | if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) { | |
1633 | goto err_exit; | |
1634 | } | |
de6a1b8e | 1635 | printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f); |
483dfdb6 TM |
1636 | } |
1637 | // vbi Device: | |
1638 | if (usbvision_device_data[usbvision->DevModel].vbi) { | |
1639 | usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI"); | |
1640 | if (usbvision->vdev == NULL) { | |
1641 | goto err_exit; | |
1642 | } | |
1643 | if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) { | |
1644 | goto err_exit; | |
1645 | } | |
de6a1b8e | 1646 | printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f); |
483dfdb6 TM |
1647 | } |
1648 | // all done | |
1649 | return 0; | |
1650 | ||
1651 | err_exit: | |
1652 | err("USBVision[%d]: video_register_device() failed", usbvision->nr); | |
1653 | usbvision_unregister_video(usbvision); | |
1654 | return -1; | |
1655 | } | |
1656 | ||
1657 | /* | |
1658 | * usbvision_alloc() | |
1659 | * | |
1660 | * This code allocates the struct usb_usbvision. It is filled with default values. | |
1661 | * | |
1662 | * Returns NULL on error, a pointer to usb_usbvision else. | |
1663 | * | |
1664 | */ | |
1665 | static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) | |
1666 | { | |
1667 | struct usb_usbvision *usbvision; | |
1668 | ||
1669 | if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) { | |
1670 | goto err_exit; | |
1671 | } | |
1672 | ||
1673 | usbvision->dev = dev; | |
1674 | ||
1675 | init_MUTEX(&usbvision->lock); /* to 1 == available */ | |
1676 | ||
1677 | // prepare control urb for control messages during interrupts | |
1678 | usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); | |
1679 | if (usbvision->ctrlUrb == NULL) { | |
1680 | goto err_exit; | |
1681 | } | |
1682 | init_waitqueue_head(&usbvision->ctrlUrb_wq); | |
1683 | init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */ | |
1684 | ||
1685 | usbvision_init_powerOffTimer(usbvision); | |
1686 | ||
1687 | return usbvision; | |
1688 | ||
1689 | err_exit: | |
1690 | if (usbvision && usbvision->ctrlUrb) { | |
1691 | usb_free_urb(usbvision->ctrlUrb); | |
1692 | } | |
1693 | if (usbvision) { | |
1694 | kfree(usbvision); | |
1695 | } | |
1696 | return NULL; | |
1697 | } | |
1698 | ||
1699 | /* | |
1700 | * usbvision_release() | |
1701 | * | |
1702 | * This code does final release of struct usb_usbvision. This happens | |
1703 | * after the device is disconnected -and- all clients closed their files. | |
1704 | * | |
1705 | */ | |
1706 | static void usbvision_release(struct usb_usbvision *usbvision) | |
1707 | { | |
1708 | PDEBUG(DBG_PROBE, ""); | |
1709 | ||
1710 | down(&usbvision->lock); | |
1711 | ||
1712 | usbvision_reset_powerOffTimer(usbvision); | |
1713 | ||
1714 | usbvision->initialized = 0; | |
1715 | ||
1716 | up(&usbvision->lock); | |
1717 | ||
1718 | usbvision_remove_sysfs(usbvision->vdev); | |
1719 | usbvision_unregister_video(usbvision); | |
1720 | ||
1721 | if (usbvision->ctrlUrb) { | |
1722 | usb_free_urb(usbvision->ctrlUrb); | |
1723 | } | |
1724 | ||
1725 | kfree(usbvision); | |
1726 | ||
1727 | PDEBUG(DBG_PROBE, "success"); | |
1728 | } | |
1729 | ||
1730 | ||
1731 | /******************************** usb interface *****************************************/ | |
1732 | ||
1733 | static void usbvision_configure_video(struct usb_usbvision *usbvision) | |
1734 | { | |
1735 | int model,i; | |
1736 | ||
1737 | if (usbvision == NULL) | |
1738 | return; | |
1739 | ||
1740 | model = usbvision->DevModel; | |
1741 | usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; | |
1742 | ||
c682b3a7 TP |
1743 | if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) { |
1744 | usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2; | |
483dfdb6 TM |
1745 | } else { |
1746 | usbvision->Vin_Reg2_Preset = 0; | |
1747 | } | |
1748 | ||
1749 | for (i = 0; i < TVNORMS; i++) | |
1750 | if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode) | |
1751 | break; | |
1752 | if (i == TVNORMS) | |
1753 | i = 0; | |
1754 | usbvision->tvnorm = &tvnorms[i]; /* set default norm */ | |
1755 | ||
1756 | usbvision->video_inputs = usbvision_device_data[model].VideoChannels; | |
1757 | usbvision->ctl_input = 0; | |
1758 | ||
1759 | /* This should be here to make i2c clients to be able to register */ | |
1760 | usbvision_audio_off(usbvision); //first switch off audio | |
1761 | if (!PowerOnAtOpen) { | |
1762 | usbvision_power_on(usbvision); //and then power up the noisy tuner | |
1ff16c20 | 1763 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
1764 | } |
1765 | } | |
1766 | ||
1767 | /* | |
1768 | * usbvision_probe() | |
1769 | * | |
1770 | * This procedure queries device descriptor and accepts the interface | |
1771 | * if it looks like USBVISION video device | |
1772 | * | |
1773 | */ | |
659ae56d MCC |
1774 | static int __devinit usbvision_probe(struct usb_interface *intf, |
1775 | const struct usb_device_id *devid) | |
483dfdb6 | 1776 | { |
2a9f8b5d TM |
1777 | struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); |
1778 | struct usb_interface *uif; | |
483dfdb6 TM |
1779 | __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; |
1780 | const struct usb_host_interface *interface; | |
1781 | struct usb_usbvision *usbvision = NULL; | |
1782 | const struct usb_endpoint_descriptor *endpoint; | |
2a9f8b5d | 1783 | int model,i; |
483dfdb6 TM |
1784 | |
1785 | PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", | |
659ae56d MCC |
1786 | dev->descriptor.idVendor, |
1787 | dev->descriptor.idProduct, ifnum); | |
2a9f8b5d | 1788 | |
659ae56d | 1789 | model = devid->driver_info; |
f8a389db | 1790 | if ( (model<0) || (model>=usbvision_device_data_size) ) { |
672d013b | 1791 | PDEBUG(DBG_PROBE, "model out of bounds %d",model); |
f8a389db MCC |
1792 | return -ENODEV; |
1793 | } | |
659ae56d MCC |
1794 | printk(KERN_INFO "%s: %s found\n", __FUNCTION__, |
1795 | usbvision_device_data[model].ModelString); | |
483dfdb6 | 1796 | |
483dfdb6 TM |
1797 | if (usbvision_device_data[model].Interface >= 0) { |
1798 | interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; | |
1799 | } | |
1800 | else { | |
1801 | interface = &dev->actconfig->interface[ifnum]->altsetting[0]; | |
1802 | } | |
1803 | endpoint = &interface->endpoint[1].desc; | |
1804 | if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) { | |
1805 | err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum); | |
2a9f8b5d | 1806 | err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes); |
483dfdb6 TM |
1807 | return -ENODEV; |
1808 | } | |
1809 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { | |
1810 | err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum); | |
1811 | return -ENODEV; | |
1812 | } | |
1813 | ||
483dfdb6 TM |
1814 | if ((usbvision = usbvision_alloc(dev)) == NULL) { |
1815 | err("%s: couldn't allocate USBVision struct", __FUNCTION__); | |
1816 | return -ENOMEM; | |
1817 | } | |
659ae56d | 1818 | |
483dfdb6 TM |
1819 | if (dev->descriptor.bNumConfigurations > 1) { |
1820 | usbvision->bridgeType = BRIDGE_NT1004; | |
1821 | } | |
659ae56d | 1822 | else if (model == DAZZLE_DVC_90_REV_1_SECAM) { |
483dfdb6 TM |
1823 | usbvision->bridgeType = BRIDGE_NT1005; |
1824 | } | |
1825 | else { | |
1826 | usbvision->bridgeType = BRIDGE_NT1003; | |
1827 | } | |
1828 | PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); | |
1829 | ||
1830 | down(&usbvision->lock); | |
1831 | ||
2a9f8b5d TM |
1832 | /* compute alternate max packet sizes */ |
1833 | uif = dev->actconfig->interface[0]; | |
1834 | ||
1835 | usbvision->num_alt=uif->num_altsetting; | |
1836 | PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); | |
1837 | usbvision->alt_max_pkt_size = kmalloc(32* | |
1838 | usbvision->num_alt,GFP_KERNEL); | |
1839 | if (usbvision->alt_max_pkt_size == NULL) { | |
1840 | err("usbvision: out of memory!\n"); | |
1841 | return -ENOMEM; | |
1842 | } | |
1843 | ||
1844 | for (i = 0; i < usbvision->num_alt ; i++) { | |
1845 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. | |
1846 | wMaxPacketSize); | |
1847 | usbvision->alt_max_pkt_size[i] = | |
1848 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
1849 | PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, | |
1850 | usbvision->alt_max_pkt_size[i]); | |
1851 | } | |
1852 | ||
1853 | ||
483dfdb6 TM |
1854 | usbvision->nr = usbvision_nr++; |
1855 | ||
1856 | usbvision->have_tuner = usbvision_device_data[model].Tuner; | |
1857 | if (usbvision->have_tuner) { | |
1858 | usbvision->tuner_type = usbvision_device_data[model].TunerType; | |
1859 | } | |
1860 | ||
1861 | usbvision->tuner_addr = ADDR_UNSET; | |
1862 | ||
1863 | usbvision->DevModel = model; | |
1864 | usbvision->remove_pending = 0; | |
1865 | usbvision->iface = ifnum; | |
2a9f8b5d | 1866 | usbvision->ifaceAlt = 0; |
483dfdb6 TM |
1867 | usbvision->video_endp = endpoint->bEndpointAddress; |
1868 | usbvision->isocPacketSize = 0; | |
1869 | usbvision->usb_bandwidth = 0; | |
1870 | usbvision->user = 0; | |
1871 | usbvision->streaming = Stream_Off; | |
1872 | usbvision_register_video(usbvision); | |
1873 | usbvision_configure_video(usbvision); | |
1874 | up(&usbvision->lock); | |
1875 | ||
1876 | ||
1877 | usb_set_intfdata (intf, usbvision); | |
1878 | usbvision_create_sysfs(usbvision->vdev); | |
1879 | ||
1880 | PDEBUG(DBG_PROBE, "success"); | |
1881 | return 0; | |
1882 | } | |
1883 | ||
1884 | ||
1885 | /* | |
1886 | * usbvision_disconnect() | |
1887 | * | |
1888 | * This procedure stops all driver activity, deallocates interface-private | |
1889 | * structure (pointed by 'ptr') and after that driver should be removable | |
1890 | * with no ill consequences. | |
1891 | * | |
1892 | */ | |
1893 | static void __devexit usbvision_disconnect(struct usb_interface *intf) | |
1894 | { | |
1895 | struct usb_usbvision *usbvision = usb_get_intfdata(intf); | |
1896 | ||
1897 | PDEBUG(DBG_PROBE, ""); | |
1898 | ||
1899 | if (usbvision == NULL) { | |
1900 | err("%s: usb_get_intfdata() failed", __FUNCTION__); | |
1901 | return; | |
1902 | } | |
1903 | usb_set_intfdata (intf, NULL); | |
1904 | ||
1905 | down(&usbvision->lock); | |
1906 | ||
1907 | // At this time we ask to cancel outstanding URBs | |
1908 | usbvision_stop_isoc(usbvision); | |
1909 | ||
1910 | if (usbvision->power) { | |
1ff16c20 | 1911 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
1912 | usbvision_power_off(usbvision); |
1913 | } | |
1914 | usbvision->remove_pending = 1; // Now all ISO data will be ignored | |
1915 | ||
1916 | usb_put_dev(usbvision->dev); | |
1917 | usbvision->dev = NULL; // USB device is no more | |
1918 | ||
1919 | up(&usbvision->lock); | |
1920 | ||
1921 | if (usbvision->user) { | |
de6a1b8e | 1922 | printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__); |
483dfdb6 TM |
1923 | wake_up_interruptible(&usbvision->wait_frame); |
1924 | wake_up_interruptible(&usbvision->wait_stream); | |
1925 | } | |
1926 | else { | |
1927 | usbvision_release(usbvision); | |
1928 | } | |
1929 | ||
1930 | PDEBUG(DBG_PROBE, "success"); | |
1931 | ||
1932 | } | |
1933 | ||
1934 | static struct usb_driver usbvision_driver = { | |
1935 | .name = "usbvision", | |
1936 | .id_table = usbvision_table, | |
1937 | .probe = usbvision_probe, | |
1938 | .disconnect = usbvision_disconnect | |
1939 | }; | |
1940 | ||
483dfdb6 TM |
1941 | /* |
1942 | * usbvision_init() | |
1943 | * | |
1944 | * This code is run to initialize the driver. | |
1945 | * | |
1946 | */ | |
1947 | static int __init usbvision_init(void) | |
1948 | { | |
1949 | int errCode; | |
1950 | ||
1951 | PDEBUG(DBG_PROBE, ""); | |
1952 | ||
1953 | PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]"); | |
1954 | PDEBUG(DBG_IO, "IO debugging is enabled [video]"); | |
1955 | PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); | |
c876a346 | 1956 | PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); |
483dfdb6 TM |
1957 | |
1958 | /* disable planar mode support unless compression enabled */ | |
1959 | if (isocMode != ISOC_MODE_COMPRESS ) { | |
1960 | // FIXME : not the right way to set supported flag | |
1961 | usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 | |
1962 | usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P | |
1963 | } | |
1964 | ||
483dfdb6 TM |
1965 | errCode = usb_register(&usbvision_driver); |
1966 | ||
1967 | if (errCode == 0) { | |
de6a1b8e | 1968 | printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); |
483dfdb6 TM |
1969 | PDEBUG(DBG_PROBE, "success"); |
1970 | } | |
1971 | return errCode; | |
1972 | } | |
1973 | ||
1974 | static void __exit usbvision_exit(void) | |
1975 | { | |
1976 | PDEBUG(DBG_PROBE, ""); | |
1977 | ||
1978 | usb_deregister(&usbvision_driver); | |
1979 | PDEBUG(DBG_PROBE, "success"); | |
1980 | } | |
1981 | ||
1982 | module_init(usbvision_init); | |
1983 | module_exit(usbvision_exit); | |
1984 | ||
1985 | /* | |
1986 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
1987 | * --------------------------------------------------------------------------- | |
1988 | * Local variables: | |
1989 | * c-basic-offset: 8 | |
1990 | * End: | |
1991 | */ |