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V4L/DVB (8428): videodev: rename 'dev' to 'parent'
[linux-2.6-block.git] / drivers / media / video / usbvision / usbvision-video.c
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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.
c5f48367
TM		 39 * - Add audio on endpoint 3 for nt1004 chip.
40 * Seems impossible, needs a codec interface. Which one?
483dfdb6
TM		 41 * - Clean up the driver.
42 * - optimization for performance.
43 * - Add Videotext capability (VBI). Working on it.....
44 * - Check audio for other devices
45 *
46 */
47
f30ebd43 48#include <linux/version.h>
483dfdb6 49#include <linux/kernel.h>
483dfdb6
TM		 50#include <linux/list.h>
51#include <linux/timer.h>
52#include <linux/slab.h>
53#include <linux/mm.h>
54#include <linux/utsname.h>
55#include <linux/highmem.h>
483dfdb6
TM		 56#include <linux/videodev.h>
57#include <linux/vmalloc.h>
58#include <linux/module.h>
59#include <linux/init.h>
60#include <linux/spinlock.h>
61#include <asm/io.h>
62#include <linux/videodev2.h>
63#include <linux/video_decoder.h>
64#include <linux/i2c.h>
65
66#include <media/saa7115.h>
67#include <media/v4l2-common.h>
68#include <media/tuner.h>
69#include <media/audiochip.h>
70
a1ed551c 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 79
c5f48367
TM		 80#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
81 Dwaine Garden <DwaineGarden@rogers.com>"
483dfdb6
TM		 82#define DRIVER_NAME "usbvision"
83#define DRIVER_ALIAS "USBVision"
84#define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
85#define DRIVER_LICENSE "GPL"
86#define USBVISION_DRIVER_VERSION_MAJOR 0
87#define USBVISION_DRIVER_VERSION_MINOR 9
88#define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
c5f48367
TM		 89#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
90USBVISION_DRIVER_VERSION_MINOR,\
91USBVISION_DRIVER_VERSION_PATCHLEVEL)
92#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
93 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
94 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
483dfdb6
TM		 95
96#define ENABLE_HEXDUMP 0 /* Enable if you need it */
97
98
483dfdb6 99#ifdef USBVISION_DEBUG
df18c319 100 #define PDEBUG(level, fmt, args...) { \
c5f48367 101 if (video_debug & (level)) \
df18c319
TM		 102 info("[%s:%d] " fmt, __func__, __LINE__ , ## args); \
103 }
483dfdb6
TM		 104#else
105 #define PDEBUG(level, fmt, args...) do {} while(0)
106#endif
107
483dfdb6
TM		 108#define DBG_IO 1<<1
109#define DBG_PROBE 1<<2
c876a346 110#define DBG_MMAP 1<<3
483dfdb6
TM		 111
112//String operations
113#define rmspace(str) while(*str==' ') str++;
114#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
115
116
c5f48367 117/* sequential number of usbvision device */
ff699e6b 118static int usbvision_nr;
483dfdb6
TM		 119
120static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
121 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
122 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
123 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
124 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
125 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
126 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
127 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
128 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
129};
130
c5f48367 131/* Function prototypes */
483dfdb6
TM		 132static void usbvision_release(struct usb_usbvision *usbvision);
133
c84e6036 134/* Default initialization of device driver parameters */
c5f48367
TM		 135/* Set the default format for ISOC endpoint */
136static int isocMode = ISOC_MODE_COMPRESS;
137/* Set the default Debug Mode of the device driver */
ff699e6b 138static int video_debug;
c5f48367
TM		 139/* Set the default device to power on at startup */
140static int PowerOnAtOpen = 1;
141/* Sequential Number of Video Device */
142static int video_nr = -1;
143/* Sequential Number of Radio Device */
144static int radio_nr = -1;
145/* Sequential Number of VBI Device */
146static int vbi_nr = -1;
147
148/* Grab parameters for the device driver */
149
150/* Showing parameters under SYSFS */
483dfdb6
TM		 151module_param(isocMode, int, 0444);
152module_param(video_debug, int, 0444);
153module_param(PowerOnAtOpen, int, 0444);
154module_param(video_nr, int, 0444);
155module_param(radio_nr, int, 0444);
156module_param(vbi_nr, int, 0444);
483dfdb6
TM		 157
158MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
159MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
160MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
161MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
162MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
163MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
483dfdb6
TM		 164
165
166// Misc stuff
167MODULE_AUTHOR(DRIVER_AUTHOR);
168MODULE_DESCRIPTION(DRIVER_DESC);
169MODULE_LICENSE(DRIVER_LICENSE);
a1ed551c
MCC		 170MODULE_VERSION(USBVISION_VERSION_STRING);
171MODULE_ALIAS(DRIVER_ALIAS);
483dfdb6
TM		 172
173
c5f48367
TM		 174/*****************************************************************************/
175/* SYSFS Code - Copied from the stv680.c usb module. */
176/* Device information is located at /sys/class/video4linux/video0 */
177/* Device parameters information is located at /sys/module/usbvision */
178/* Device USB Information is located at */
179/* /sys/bus/usb/drivers/USBVision Video Grabber */
180/*****************************************************************************/
483dfdb6 181
483dfdb6
TM		 182#define YES_NO(x) ((x) ? "Yes" : "No")
183
54bd5b66 184static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
483dfdb6 185{
c5f48367
TM		 186 struct video_device *vdev =
187 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 188 return video_get_drvdata(vdev);
189}
190
54bd5b66
KS		 191static ssize_t show_version(struct device *cd,
192 struct device_attribute *attr, char *buf)
483dfdb6
TM		 193{
194 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
195}
54bd5b66 196static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
483dfdb6 197
54bd5b66
KS		 198static ssize_t show_model(struct device *cd,
199 struct device_attribute *attr, char *buf)
483dfdb6 200{
c5f48367
TM		 201 struct video_device *vdev =
202 container_of(cd, struct video_device, class_dev);
483dfdb6 203 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 204 return sprintf(buf, "%s\n",
205 usbvision_device_data[usbvision->DevModel].ModelString);
483dfdb6 206}
54bd5b66 207static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
483dfdb6 208
54bd5b66
KS		 209static ssize_t show_hue(struct device *cd,
210 struct device_attribute *attr, char *buf)
483dfdb6 211{
c5f48367
TM		 212 struct video_device *vdev =
213 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 214 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
215 struct v4l2_control ctrl;
216 ctrl.id = V4L2_CID_HUE;
217 ctrl.value = 0;
ed00b41d
DG		 218 if(usbvision->user)
219 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 220 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6 221}
54bd5b66 222static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
483dfdb6 223
54bd5b66
KS		 224static ssize_t show_contrast(struct device *cd,
225 struct device_attribute *attr, char *buf)
483dfdb6 226{
c5f48367
TM		 227 struct video_device *vdev =
228 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 229 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
230 struct v4l2_control ctrl;
231 ctrl.id = V4L2_CID_CONTRAST;
232 ctrl.value = 0;
ed00b41d
DG		 233 if(usbvision->user)
234 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 235 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6 236}
54bd5b66 237static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
483dfdb6 238
54bd5b66
KS		 239static ssize_t show_brightness(struct device *cd,
240 struct device_attribute *attr, char *buf)
483dfdb6 241{
c5f48367
TM		 242 struct video_device *vdev =
243 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 244 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
245 struct v4l2_control ctrl;
246 ctrl.id = V4L2_CID_BRIGHTNESS;
247 ctrl.value = 0;
ed00b41d
DG		 248 if(usbvision->user)
249 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 250 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6 251}
54bd5b66 252static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
483dfdb6 253
54bd5b66
KS		 254static ssize_t show_saturation(struct device *cd,
255 struct device_attribute *attr, char *buf)
483dfdb6 256{
c5f48367
TM		 257 struct video_device *vdev =
258 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 259 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
260 struct v4l2_control ctrl;
261 ctrl.id = V4L2_CID_SATURATION;
262 ctrl.value = 0;
ed00b41d
DG		 263 if(usbvision->user)
264 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 265 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6 266}
54bd5b66 267static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
483dfdb6 268
54bd5b66
KS		 269static ssize_t show_streaming(struct device *cd,
270 struct device_attribute *attr, char *buf)
483dfdb6 271{
c5f48367
TM		 272 struct video_device *vdev =
273 container_of(cd, struct video_device, class_dev);
483dfdb6 274 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 275 return sprintf(buf, "%s\n",
276 YES_NO(usbvision->streaming==Stream_On?1:0));
483dfdb6 277}
54bd5b66 278static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
483dfdb6 279
54bd5b66
KS		 280static ssize_t show_compression(struct device *cd,
281 struct device_attribute *attr, char *buf)
483dfdb6 282{
c5f48367
TM		 283 struct video_device *vdev =
284 container_of(cd, struct video_device, class_dev);
483dfdb6 285 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 286 return sprintf(buf, "%s\n",
287 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
483dfdb6 288}
54bd5b66 289static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
483dfdb6 290
54bd5b66
KS		 291static ssize_t show_device_bridge(struct device *cd,
292 struct device_attribute *attr, char *buf)
483dfdb6 293{
c5f48367
TM		 294 struct video_device *vdev =
295 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 296 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
297 return sprintf(buf, "%d\n", usbvision->bridgeType);
298}
54bd5b66 299static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
483dfdb6
TM		 300
301static void usbvision_create_sysfs(struct video_device *vdev)
302{
303 int res;
ed00b41d
DG		 304 if (!vdev)
305 return;
306 do {
54bd5b66
KS		 307 res = device_create_file(&vdev->class_dev,
308 &dev_attr_version);
ed00b41d
DG		 309 if (res<0)
310 break;
54bd5b66
KS		 311 res = device_create_file(&vdev->class_dev,
312 &dev_attr_model);
ed00b41d
DG		 313 if (res<0)
314 break;
54bd5b66
KS		 315 res = device_create_file(&vdev->class_dev,
316 &dev_attr_hue);
ed00b41d
DG		 317 if (res<0)
318 break;
54bd5b66
KS		 319 res = device_create_file(&vdev->class_dev,
320 &dev_attr_contrast);
ed00b41d
DG		 321 if (res<0)
322 break;
54bd5b66
KS		 323 res = device_create_file(&vdev->class_dev,
324 &dev_attr_brightness);
ed00b41d
DG		 325 if (res<0)
326 break;
54bd5b66
KS		 327 res = device_create_file(&vdev->class_dev,
328 &dev_attr_saturation);
ed00b41d
DG		 329 if (res<0)
330 break;
54bd5b66
KS		 331 res = device_create_file(&vdev->class_dev,
332 &dev_attr_streaming);
ed00b41d
DG		 333 if (res<0)
334 break;
54bd5b66
KS		 335 res = device_create_file(&vdev->class_dev,
336 &dev_attr_compression);
ed00b41d
DG		 337 if (res<0)
338 break;
54bd5b66
KS		 339 res = device_create_file(&vdev->class_dev,
340 &dev_attr_bridge);
ed00b41d
DG		 341 if (res>=0)
342 return;
343 } while (0);
344
d2db42dd 345 err("%s error: %d\n", __func__, res);
483dfdb6
TM		 346}
347
348static void usbvision_remove_sysfs(struct video_device *vdev)
349{
350 if (vdev) {
54bd5b66
KS		 351 device_remove_file(&vdev->class_dev,
352 &dev_attr_version);
353 device_remove_file(&vdev->class_dev,
354 &dev_attr_model);
355 device_remove_file(&vdev->class_dev,
356 &dev_attr_hue);
357 device_remove_file(&vdev->class_dev,
358 &dev_attr_contrast);
359 device_remove_file(&vdev->class_dev,
360 &dev_attr_brightness);
361 device_remove_file(&vdev->class_dev,
362 &dev_attr_saturation);
363 device_remove_file(&vdev->class_dev,
364 &dev_attr_streaming);
365 device_remove_file(&vdev->class_dev,
366 &dev_attr_compression);
367 device_remove_file(&vdev->class_dev,
368 &dev_attr_bridge);
483dfdb6
TM		 369 }
370}
371
483dfdb6
TM		 372/*
373 * usbvision_open()
374 *
375 * This is part of Video 4 Linux API. The driver can be opened by one
376 * client only (checks internal counter 'usbvision->user'). The procedure
377 * then allocates buffers needed for video processing.
378 *
379 */
380static int usbvision_v4l2_open(struct inode *inode, struct file *file)
381{
382 struct video_device *dev = video_devdata(file);
c5f48367
TM		 383 struct usb_usbvision *usbvision =
384 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 385 int errCode = 0;
386
387 PDEBUG(DBG_IO, "open");
388
483dfdb6
TM		 389 usbvision_reset_powerOffTimer(usbvision);
390
391 if (usbvision->user)
392 errCode = -EBUSY;
393 else {
6f78e186
TM		 394 /* Allocate memory for the scratch ring buffer */
395 errCode = usbvision_scratch_alloc(usbvision);
396 if (isocMode==ISOC_MODE_COMPRESS) {
c5f48367
TM		 397 /* Allocate intermediate decompression buffers
398 only if needed */
6f78e186 399 errCode = usbvision_decompress_alloc(usbvision);
483dfdb6
TM		 400 }
401 if (errCode) {
402 /* Deallocate all buffers if trouble */
483dfdb6 403 usbvision_scratch_free(usbvision);
483dfdb6
TM		 404 usbvision_decompress_free(usbvision);
405 }
406 }
407
408 /* If so far no errors then we shall start the camera */
409 if (!errCode) {
289d4d2f 410 mutex_lock(&usbvision->lock);
483dfdb6
TM		 411 if (usbvision->power == 0) {
412 usbvision_power_on(usbvision);
1ff16c20 413 usbvision_i2c_register(usbvision);
483dfdb6
TM		 414 }
415
416 /* Send init sequence only once, it's large! */
417 if (!usbvision->initialized) {
418 int setup_ok = 0;
419 setup_ok = usbvision_setup(usbvision,isocMode);
420 if (setup_ok)
421 usbvision->initialized = 1;
422 else
423 errCode = -EBUSY;
424 }
425
426 if (!errCode) {
427 usbvision_begin_streaming(usbvision);
428 errCode = usbvision_init_isoc(usbvision);
c5f48367 429 /* device must be initialized before isoc transfer */
483dfdb6
TM		 430 usbvision_muxsel(usbvision,0);
431 usbvision->user++;
c5f48367 432 } else {
483dfdb6 433 if (PowerOnAtOpen) {
1ff16c20 434 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 435 usbvision_power_off(usbvision);
436 usbvision->initialized = 0;
437 }
438 }
289d4d2f 439 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 440 }
441
483dfdb6
TM		 442 /* prepare queues */
443 usbvision_empty_framequeues(usbvision);
444
445 PDEBUG(DBG_IO, "success");
446 return errCode;
447}
448
449/*
450 * usbvision_v4l2_close()
451 *
452 * This is part of Video 4 Linux API. The procedure
453 * stops streaming and deallocates all buffers that were earlier
454 * allocated in usbvision_v4l2_open().
455 *
456 */
457static int usbvision_v4l2_close(struct inode *inode, struct file *file)
458{
459 struct video_device *dev = video_devdata(file);
c5f48367
TM		 460 struct usb_usbvision *usbvision =
461 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 462
463 PDEBUG(DBG_IO, "close");
289d4d2f 464 mutex_lock(&usbvision->lock);
483dfdb6
TM		 465
466 usbvision_audio_off(usbvision);
467 usbvision_restart_isoc(usbvision);
468 usbvision_stop_isoc(usbvision);
469
470 usbvision_decompress_free(usbvision);
38284ba3 471 usbvision_frames_free(usbvision);
6f78e186 472 usbvision_empty_framequeues(usbvision);
483dfdb6 473 usbvision_scratch_free(usbvision);
483dfdb6
TM		 474
475 usbvision->user--;
476
477 if (PowerOnAtOpen) {
c5f48367
TM		 478 /* power off in a little while
479 to avoid off/on every close/open short sequences */
483dfdb6
TM		 480 usbvision_set_powerOffTimer(usbvision);
481 usbvision->initialized = 0;
482 }
483
289d4d2f 484 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 485
486 if (usbvision->remove_pending) {
d2db42dd 487 printk(KERN_INFO "%s: Final disconnect\n", __func__);
483dfdb6
TM		 488 usbvision_release(usbvision);
489 }
490
491 PDEBUG(DBG_IO, "success");
483dfdb6
TM		 492 return 0;
493}
494
495
496/*
497 * usbvision_ioctl()
498 *
499 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
500 *
501 */
c5f48367
TM		 502#ifdef CONFIG_VIDEO_ADV_DEBUG
503static int vidioc_g_register (struct file *file, void *priv,
504 struct v4l2_register *reg)
483dfdb6
TM		 505{
506 struct video_device *dev = video_devdata(file);
c5f48367
TM		 507 struct usb_usbvision *usbvision =
508 (struct usb_usbvision *) video_get_drvdata(dev);
509 int errCode;
483dfdb6 510
c5f48367
TM		 511 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
512 return -EINVAL;
513 /* NT100x has a 8-bit register space */
514 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
515 if (errCode < 0) {
516 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
d2db42dd 517 __func__, errCode);
c5f48367
TM		 518 return errCode;
519 }
bc147135 520 reg->val = errCode;
c5f48367
TM		 521 return 0;
522}
483dfdb6 523
c5f48367
TM		 524static int vidioc_s_register (struct file *file, void *priv,
525 struct v4l2_register *reg)
526{
527 struct video_device *dev = video_devdata(file);
528 struct usb_usbvision *usbvision =
529 (struct usb_usbvision *) video_get_drvdata(dev);
530 int errCode;
62d50add 531
c5f48367
TM		 532 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
533 return -EINVAL;
534 /* NT100x has a 8-bit register space */
bc147135
TP		 535 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
536 if (errCode < 0) {
c5f48367 537 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
d2db42dd 538 __func__, errCode);
c5f48367
TM		 539 return errCode;
540 }
541 return 0;
542}
483dfdb6 543#endif
c5f48367
TM		 544
545static int vidioc_querycap (struct file *file, void *priv,
546 struct v4l2_capability *vc)
547{
548 struct video_device *dev = video_devdata(file);
549 struct usb_usbvision *usbvision =
550 (struct usb_usbvision *) video_get_drvdata(dev);
551
552 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
553 strlcpy(vc->card,
554 usbvision_device_data[usbvision->DevModel].ModelString,
555 sizeof(vc->card));
556 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
557 sizeof(vc->bus_info));
558 vc->version = USBVISION_DRIVER_VERSION;
559 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
560 V4L2_CAP_AUDIO |
561 V4L2_CAP_READWRITE |
562 V4L2_CAP_STREAMING |
563 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
564 return 0;
565}
566
567static int vidioc_enum_input (struct file *file, void *priv,
568 struct v4l2_input *vi)
569{
570 struct video_device *dev = video_devdata(file);
571 struct usb_usbvision *usbvision =
572 (struct usb_usbvision *) video_get_drvdata(dev);
573 int chan;
574
575 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
576 return -EINVAL;
577 if (usbvision->have_tuner) {
578 chan = vi->index;
579 } else {
580 chan = vi->index + 1; /*skip Television string*/
581 }
582 /* Determine the requested input characteristics
583 specific for each usbvision card model */
584 switch(chan) {
585 case 0:
586 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
587 strcpy(vi->name, "White Video Input");
588 } else {
589 strcpy(vi->name, "Television");
590 vi->type = V4L2_INPUT_TYPE_TUNER;
591 vi->audioset = 1;
592 vi->tuner = chan;
593 vi->std = USBVISION_NORMS;
483dfdb6 594 }
c5f48367
TM		 595 break;
596 case 1:
597 vi->type = V4L2_INPUT_TYPE_CAMERA;
598 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
599 strcpy(vi->name, "Green Video Input");
600 } else {
601 strcpy(vi->name, "Composite Video Input");
483dfdb6 602 }
c5f48367
TM		 603 vi->std = V4L2_STD_PAL;
604 break;
605 case 2:
606 vi->type = V4L2_INPUT_TYPE_CAMERA;
607 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
608 strcpy(vi->name, "Yellow Video Input");
609 } else {
610 strcpy(vi->name, "S-Video Input");
483dfdb6 611 }
c5f48367
TM		 612 vi->std = V4L2_STD_PAL;
613 break;
614 case 3:
615 vi->type = V4L2_INPUT_TYPE_CAMERA;
616 strcpy(vi->name, "Red Video Input");
617 vi->std = V4L2_STD_PAL;
618 break;
619 }
620 return 0;
621}
483dfdb6 622
c5f48367
TM		 623static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
624{
625 struct video_device *dev = video_devdata(file);
626 struct usb_usbvision *usbvision =
627 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 628
c5f48367
TM		 629 *input = usbvision->ctl_input;
630 return 0;
631}
483dfdb6 632
c5f48367
TM		 633static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
634{
635 struct video_device *dev = video_devdata(file);
636 struct usb_usbvision *usbvision =
637 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 638
c5f48367
TM		 639 if ((input >= usbvision->video_inputs) || (input < 0) )
640 return -EINVAL;
483dfdb6 641
289d4d2f 642 mutex_lock(&usbvision->lock);
66a17879 643 usbvision_muxsel(usbvision, input);
c5f48367
TM		 644 usbvision_set_input(usbvision);
645 usbvision_set_output(usbvision,
646 usbvision->curwidth,
647 usbvision->curheight);
289d4d2f 648 mutex_unlock(&usbvision->lock);
c5f48367
TM		 649 return 0;
650}
483dfdb6 651
c5f48367
TM		 652static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
653{
654 struct video_device *dev = video_devdata(file);
655 struct usb_usbvision *usbvision =
656 (struct usb_usbvision *) video_get_drvdata(dev);
657 usbvision->tvnormId=*id;
483dfdb6 658
289d4d2f 659 mutex_lock(&usbvision->lock);
c5f48367
TM		 660 call_i2c_clients(usbvision, VIDIOC_S_STD,
661 &usbvision->tvnormId);
289d4d2f 662 mutex_unlock(&usbvision->lock);
66a17879
TM		 663 /* propagate the change to the decoder */
664 usbvision_muxsel(usbvision, usbvision->ctl_input);
483dfdb6 665
c5f48367
TM		 666 return 0;
667}
483dfdb6 668
c5f48367
TM		 669static int vidioc_g_tuner (struct file *file, void *priv,
670 struct v4l2_tuner *vt)
671{
672 struct video_device *dev = video_devdata(file);
673 struct usb_usbvision *usbvision =
674 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 675
c5f48367
TM		 676 if (!usbvision->have_tuner || vt->index) // Only tuner 0
677 return -EINVAL;
678 if(usbvision->radio) {
679 strcpy(vt->name, "Radio");
680 vt->type = V4L2_TUNER_RADIO;
681 } else {
682 strcpy(vt->name, "Television");
683 }
684 /* Let clients fill in the remainder of this struct */
685 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
483dfdb6 686
c5f48367
TM		 687 return 0;
688}
483dfdb6 689
c5f48367
TM		 690static int vidioc_s_tuner (struct file *file, void *priv,
691 struct v4l2_tuner *vt)
692{
693 struct video_device *dev = video_devdata(file);
694 struct usb_usbvision *usbvision =
695 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 696
c5f48367
TM		 697 // Only no or one tuner for now
698 if (!usbvision->have_tuner || vt->index)
699 return -EINVAL;
700 /* let clients handle this */
701 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
483dfdb6 702
c5f48367
TM		 703 return 0;
704}
483dfdb6 705
c5f48367
TM		 706static int vidioc_g_frequency (struct file *file, void *priv,
707 struct v4l2_frequency *freq)
708{
709 struct video_device *dev = video_devdata(file);
710 struct usb_usbvision *usbvision =
711 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 712
c5f48367
TM		 713 freq->tuner = 0; // Only one tuner
714 if(usbvision->radio) {
715 freq->type = V4L2_TUNER_RADIO;
716 } else {
717 freq->type = V4L2_TUNER_ANALOG_TV;
718 }
719 freq->frequency = usbvision->freq;
483dfdb6 720
c5f48367
TM		 721 return 0;
722}
483dfdb6 723
c5f48367
TM		 724static int vidioc_s_frequency (struct file *file, void *priv,
725 struct v4l2_frequency *freq)
726{
727 struct video_device *dev = video_devdata(file);
728 struct usb_usbvision *usbvision =
729 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 730
c5f48367
TM		 731 // Only no or one tuner for now
732 if (!usbvision->have_tuner || freq->tuner)
733 return -EINVAL;
483dfdb6 734
c5f48367
TM		 735 usbvision->freq = freq->frequency;
736 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
483dfdb6 737
c5f48367
TM		 738 return 0;
739}
483dfdb6 740
c5f48367
TM		 741static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
742{
743 struct video_device *dev = video_devdata(file);
744 struct usb_usbvision *usbvision =
745 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 746
c5f48367
TM		 747 memset(a,0,sizeof(*a));
748 if(usbvision->radio) {
749 strcpy(a->name,"Radio");
750 } else {
751 strcpy(a->name, "TV");
752 }
483dfdb6 753
c5f48367
TM		 754 return 0;
755}
483dfdb6 756
c5f48367
TM		 757static int vidioc_s_audio (struct file *file, void *fh,
758 struct v4l2_audio *a)
759{
760 if(a->index) {
761 return -EINVAL;
762 }
483dfdb6 763
c5f48367
TM		 764 return 0;
765}
483dfdb6 766
c5f48367
TM		 767static int vidioc_queryctrl (struct file *file, void *priv,
768 struct v4l2_queryctrl *ctrl)
769{
770 struct video_device *dev = video_devdata(file);
771 struct usb_usbvision *usbvision =
772 (struct usb_usbvision *) video_get_drvdata(dev);
773 int id=ctrl->id;
483dfdb6 774
c5f48367
TM		 775 memset(ctrl,0,sizeof(*ctrl));
776 ctrl->id=id;
483dfdb6 777
c5f48367 778 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
483dfdb6 779
c5f48367
TM		 780 if (!ctrl->type)
781 return -EINVAL;
483dfdb6 782
c5f48367
TM		 783 return 0;
784}
483dfdb6 785
c5f48367
TM		 786static int vidioc_g_ctrl (struct file *file, void *priv,
787 struct v4l2_control *ctrl)
788{
789 struct video_device *dev = video_devdata(file);
790 struct usb_usbvision *usbvision =
791 (struct usb_usbvision *) video_get_drvdata(dev);
792 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
483dfdb6 793
c5f48367
TM		 794 return 0;
795}
796
797static int vidioc_s_ctrl (struct file *file, void *priv,
798 struct v4l2_control *ctrl)
799{
800 struct video_device *dev = video_devdata(file);
801 struct usb_usbvision *usbvision =
802 (struct usb_usbvision *) video_get_drvdata(dev);
803 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
804
805 return 0;
806}
807
808static int vidioc_reqbufs (struct file *file,
809 void *priv, struct v4l2_requestbuffers *vr)
810{
811 struct video_device *dev = video_devdata(file);
812 struct usb_usbvision *usbvision =
813 (struct usb_usbvision *) video_get_drvdata(dev);
814 int ret;
815
816 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
817
818 /* Check input validity:
819 the user must do a VIDEO CAPTURE and MMAP method. */
820 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
821 (vr->memory != V4L2_MEMORY_MMAP))
822 return -EINVAL;
823
824 if(usbvision->streaming == Stream_On) {
825 if ((ret = usbvision_stream_interrupt(usbvision)))
826 return ret;
483dfdb6 827 }
c5f48367
TM		 828
829 usbvision_frames_free(usbvision);
830 usbvision_empty_framequeues(usbvision);
831 vr->count = usbvision_frames_alloc(usbvision,vr->count);
832
833 usbvision->curFrame = NULL;
834
483dfdb6
TM		 835 return 0;
836}
837
c5f48367
TM		 838static int vidioc_querybuf (struct file *file,
839 void *priv, struct v4l2_buffer *vb)
483dfdb6 840{
c5f48367
TM		 841 struct video_device *dev = video_devdata(file);
842 struct usb_usbvision *usbvision =
843 (struct usb_usbvision *) video_get_drvdata(dev);
844 struct usbvision_frame *frame;
845
846 /* FIXME : must control
847 that buffers are mapped (VIDIOC_REQBUFS has been called) */
848 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
849 return -EINVAL;
850 }
851 if(vb->index>=usbvision->num_frames) {
852 return -EINVAL;
853 }
854 /* Updating the corresponding frame state */
855 vb->flags = 0;
856 frame = &usbvision->frame[vb->index];
857 if(frame->grabstate >= FrameState_Ready)
858 vb->flags |= V4L2_BUF_FLAG_QUEUED;
859 if(frame->grabstate >= FrameState_Done)
860 vb->flags |= V4L2_BUF_FLAG_DONE;
861 if(frame->grabstate == FrameState_Unused)
862 vb->flags |= V4L2_BUF_FLAG_MAPPED;
863 vb->memory = V4L2_MEMORY_MMAP;
864
865 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
866
867 vb->memory = V4L2_MEMORY_MMAP;
868 vb->field = V4L2_FIELD_NONE;
869 vb->length = usbvision->curwidth*
870 usbvision->curheight*
871 usbvision->palette.bytes_per_pixel;
872 vb->timestamp = usbvision->frame[vb->index].timestamp;
873 vb->sequence = usbvision->frame[vb->index].sequence;
874 return 0;
483dfdb6
TM		 875}
876
c5f48367
TM		 877static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
878{
879 struct video_device *dev = video_devdata(file);
880 struct usb_usbvision *usbvision =
881 (struct usb_usbvision *) video_get_drvdata(dev);
882 struct usbvision_frame *frame;
883 unsigned long lock_flags;
884
885 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
886 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
887 return -EINVAL;
888 }
889 if(vb->index>=usbvision->num_frames) {
890 return -EINVAL;
891 }
892
893 frame = &usbvision->frame[vb->index];
894
895 if (frame->grabstate != FrameState_Unused) {
896 return -EAGAIN;
897 }
898
899 /* Mark it as ready and enqueue frame */
900 frame->grabstate = FrameState_Ready;
901 frame->scanstate = ScanState_Scanning;
902 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
903
904 vb->flags &= ~V4L2_BUF_FLAG_DONE;
905
906 /* set v4l2_format index */
907 frame->v4l2_format = usbvision->palette;
908
909 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
910 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
911 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
912
913 return 0;
914}
915
916static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
917{
918 struct video_device *dev = video_devdata(file);
919 struct usb_usbvision *usbvision =
920 (struct usb_usbvision *) video_get_drvdata(dev);
921 int ret;
922 struct usbvision_frame *f;
923 unsigned long lock_flags;
924
925 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
926 return -EINVAL;
927
928 if (list_empty(&(usbvision->outqueue))) {
929 if (usbvision->streaming == Stream_Idle)
930 return -EINVAL;
931 ret = wait_event_interruptible
932 (usbvision->wait_frame,
933 !list_empty(&(usbvision->outqueue)));
934 if (ret)
935 return ret;
936 }
937
938 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
939 f = list_entry(usbvision->outqueue.next,
940 struct usbvision_frame, frame);
941 list_del(usbvision->outqueue.next);
942 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
943
944 f->grabstate = FrameState_Unused;
945
946 vb->memory = V4L2_MEMORY_MMAP;
947 vb->flags = V4L2_BUF_FLAG_MAPPED |
948 V4L2_BUF_FLAG_QUEUED |
949 V4L2_BUF_FLAG_DONE;
950 vb->index = f->index;
951 vb->sequence = f->sequence;
952 vb->timestamp = f->timestamp;
953 vb->field = V4L2_FIELD_NONE;
954 vb->bytesused = f->scanlength;
955
956 return 0;
957}
958
959static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
960{
961 struct video_device *dev = video_devdata(file);
962 struct usb_usbvision *usbvision =
963 (struct usb_usbvision *) video_get_drvdata(dev);
964 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
965
966 usbvision->streaming = Stream_On;
967 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
968
969 return 0;
970}
971
972static int vidioc_streamoff(struct file *file,
973 void *priv, enum v4l2_buf_type type)
974{
975 struct video_device *dev = video_devdata(file);
976 struct usb_usbvision *usbvision =
977 (struct usb_usbvision *) video_get_drvdata(dev);
978 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
979
980 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
981 return -EINVAL;
982
983 if(usbvision->streaming == Stream_On) {
984 usbvision_stream_interrupt(usbvision);
985 /* Stop all video streamings */
986 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
987 }
988 usbvision_empty_framequeues(usbvision);
989
990 return 0;
991}
992
78b526a4 993static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
c5f48367
TM		 994 struct v4l2_fmtdesc *vfd)
995{
996 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
997 return -EINVAL;
998 }
999 vfd->flags = 0;
1000 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1001 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
1002 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
1003 memset(vfd->reserved, 0, sizeof(vfd->reserved));
1004 return 0;
1005}
1006
78b526a4 1007static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
c5f48367
TM		 1008 struct v4l2_format *vf)
1009{
1010 struct video_device *dev = video_devdata(file);
1011 struct usb_usbvision *usbvision =
1012 (struct usb_usbvision *) video_get_drvdata(dev);
1013 vf->fmt.pix.width = usbvision->curwidth;
1014 vf->fmt.pix.height = usbvision->curheight;
1015 vf->fmt.pix.pixelformat = usbvision->palette.format;
1016 vf->fmt.pix.bytesperline =
1017 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
1018 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
1019 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1020 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
1021
1022 return 0;
1023}
1024
78b526a4 1025static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
c5f48367
TM		 1026 struct v4l2_format *vf)
1027{
1028 struct video_device *dev = video_devdata(file);
1029 struct usb_usbvision *usbvision =
1030 (struct usb_usbvision *) video_get_drvdata(dev);
1031 int formatIdx;
1032
1033 /* Find requested format in available ones */
1034 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
1035 if(vf->fmt.pix.pixelformat ==
1036 usbvision_v4l2_format[formatIdx].format) {
1037 usbvision->palette = usbvision_v4l2_format[formatIdx];
1038 break;
1039 }
1040 }
1041 /* robustness */
1042 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
1043 return -EINVAL;
1044 }
1045 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
1046 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
1047
1048 vf->fmt.pix.bytesperline = vf->fmt.pix.width*
1049 usbvision->palette.bytes_per_pixel;
1050 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
1051
1052 return 0;
1053}
1054
78b526a4 1055static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
c5f48367
TM		 1056 struct v4l2_format *vf)
1057{
1058 struct video_device *dev = video_devdata(file);
1059 struct usb_usbvision *usbvision =
1060 (struct usb_usbvision *) video_get_drvdata(dev);
1061 int ret;
1062
78b526a4 1063 if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
c5f48367
TM		 1064 return ret;
1065 }
1066
1067 /* stop io in case it is already in progress */
1068 if(usbvision->streaming == Stream_On) {
1069 if ((ret = usbvision_stream_interrupt(usbvision)))
1070 return ret;
1071 }
1072 usbvision_frames_free(usbvision);
1073 usbvision_empty_framequeues(usbvision);
1074
1075 usbvision->curFrame = NULL;
1076
1077 /* by now we are committed to the new data... */
289d4d2f 1078 mutex_lock(&usbvision->lock);
c5f48367 1079 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
289d4d2f 1080 mutex_unlock(&usbvision->lock);
c5f48367
TM		 1081
1082 return 0;
1083}
483dfdb6 1084
8a5ab415 1085static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
483dfdb6
TM		 1086 size_t count, loff_t *ppos)
1087{
1088 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1089 struct usb_usbvision *usbvision =
1090 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1091 int noblock = file->f_flags & O_NONBLOCK;
1092 unsigned long lock_flags;
1093
483dfdb6
TM		 1094 int ret,i;
1095 struct usbvision_frame *frame;
1096
d2db42dd 1097 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
c5f48367 1098 (unsigned long)count, noblock);
483dfdb6
TM		 1099
1100 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1101 return -EFAULT;
1102
c5f48367
TM		 1103 /* This entry point is compatible with the mmap routines
1104 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1105 to get frames or call read on the device. */
6f78e186 1106 if(!usbvision->num_frames) {
c5f48367
TM		 1107 /* First, allocate some frames to work with
1108 if this has not been done with VIDIOC_REQBUF */
6f78e186
TM		 1109 usbvision_frames_free(usbvision);
1110 usbvision_empty_framequeues(usbvision);
1111 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1112 }
1113
1114 if(usbvision->streaming != Stream_On) {
1115 /* no stream is running, make it running ! */
1116 usbvision->streaming = Stream_On;
1117 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1118 }
483dfdb6 1119
c5f48367
TM		 1120 /* Then, enqueue as many frames as possible
1121 (like a user of VIDIOC_QBUF would do) */
6f78e186 1122 for(i=0;i<usbvision->num_frames;i++) {
483dfdb6
TM		 1123 frame = &usbvision->frame[i];
1124 if(frame->grabstate == FrameState_Unused) {
1125 /* Mark it as ready and enqueue frame */
1126 frame->grabstate = FrameState_Ready;
1127 frame->scanstate = ScanState_Scanning;
c5f48367
TM		 1128 /* Accumulated in usbvision_parse_data() */
1129 frame->scanlength = 0;
483dfdb6
TM		 1130
1131 /* set v4l2_format index */
1132 frame->v4l2_format = usbvision->palette;
1133
1134 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1135 list_add_tail(&frame->frame, &usbvision->inqueue);
c5f48367
TM		 1136 spin_unlock_irqrestore(&usbvision->queue_lock,
1137 lock_flags);
483dfdb6
TM		 1138 }
1139 }
1140
1141 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1142 if (list_empty(&(usbvision->outqueue))) {
1143 if(noblock)
1144 return -EAGAIN;
1145
1146 ret = wait_event_interruptible
1147 (usbvision->wait_frame,
1148 !list_empty(&(usbvision->outqueue)));
1149 if (ret)
1150 return ret;
1151 }
1152
1153 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1154 frame = list_entry(usbvision->outqueue.next,
1155 struct usbvision_frame, frame);
1156 list_del(usbvision->outqueue.next);
1157 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1158
1159 /* An error returns an empty frame */
1160 if (frame->grabstate == FrameState_Error) {
1161 frame->bytes_read = 0;
1162 return 0;
1163 }
1164
c5f48367 1165 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
d2db42dd 1166 __func__,
c5f48367 1167 frame->index, frame->bytes_read, frame->scanlength);
483dfdb6
TM		 1168
1169 /* copy bytes to user space; we allow for partials reads */
1170 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1171 count = frame->scanlength - frame->bytes_read;
1172
1173 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1174 return -EFAULT;
1175 }
1176
1177 frame->bytes_read += count;
c5f48367 1178 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
d2db42dd 1179 __func__,
c5f48367 1180 (unsigned long)count, frame->bytes_read);
483dfdb6 1181
c5f48367 1182 /* For now, forget the frame if it has not been read in one shot. */
483dfdb6
TM		 1183/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1184 frame->bytes_read = 0;
1185
1186 /* Mark it as available to be used again. */
c430ca1e 1187 frame->grabstate = FrameState_Unused;
483dfdb6
TM		 1188/* } */
1189
1190 return count;
1191}
1192
1193static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1194{
1195 unsigned long size = vma->vm_end - vma->vm_start,
1196 start = vma->vm_start;
1197 void *pos;
1198 u32 i;
1199
1200 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1201 struct usb_usbvision *usbvision =
1202 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 1203
6f78e186
TM		 1204 PDEBUG(DBG_MMAP, "mmap");
1205
289d4d2f 1206 mutex_lock(&usbvision->lock);
483dfdb6
TM		 1207
1208 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
289d4d2f 1209 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1210 return -EFAULT;
1211 }
1212
1213 if (!(vma->vm_flags & VM_WRITE) ||
6f78e186 1214 size != PAGE_ALIGN(usbvision->max_frame_size)) {
289d4d2f 1215 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1216 return -EINVAL;
1217 }
1218
6f78e186 1219 for (i = 0; i < usbvision->num_frames; i++) {
c5f48367
TM		 1220 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1221 vma->vm_pgoff)
483dfdb6
TM		 1222 break;
1223 }
6f78e186 1224 if (i == usbvision->num_frames) {
c5f48367
TM		 1225 PDEBUG(DBG_MMAP,
1226 "mmap: user supplied mapping address is out of range");
289d4d2f 1227 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1228 return -EINVAL;
1229 }
1230
1231 /* VM_IO is eventually going to replace PageReserved altogether */
1232 vma->vm_flags |= VM_IO;
1233 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1234
1235 pos = usbvision->frame[i].data;
1236 while (size > 0) {
1237
1238 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
c876a346 1239 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
289d4d2f 1240 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1241 return -EAGAIN;
1242 }
1243 start += PAGE_SIZE;
1244 pos += PAGE_SIZE;
1245 size -= PAGE_SIZE;
1246 }
1247
289d4d2f 1248 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1249 return 0;
1250}
1251
1252
1253/*
1254 * Here comes the stuff for radio on usbvision based devices
1255 *
1256 */
1257static int usbvision_radio_open(struct inode *inode, struct file *file)
1258{
1259 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1260 struct usb_usbvision *usbvision =
1261 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1262 int errCode = 0;
1263
d2db42dd 1264 PDEBUG(DBG_IO, "%s:", __func__);
483dfdb6 1265
289d4d2f 1266 mutex_lock(&usbvision->lock);
483dfdb6
TM		 1267
1268 if (usbvision->user) {
d2db42dd 1269 err("%s: Someone tried to open an already opened USBVision Radio!", __func__);
483dfdb6
TM		 1270 errCode = -EBUSY;
1271 }
1272 else {
1273 if(PowerOnAtOpen) {
1274 usbvision_reset_powerOffTimer(usbvision);
1275 if (usbvision->power == 0) {
1276 usbvision_power_on(usbvision);
1ff16c20 1277 usbvision_i2c_register(usbvision);
483dfdb6
TM		 1278 }
1279 }
1280
2a9f8b5d
TM		 1281 /* Alternate interface 1 is is the biggest frame size */
1282 errCode = usbvision_set_alternate(usbvision);
1283 if (errCode < 0) {
1284 usbvision->last_error = errCode;
544e6175
AM		 1285 errCode = -EBUSY;
1286 goto out;
2a9f8b5d
TM		 1287 }
1288
483dfdb6
TM		 1289 // If so far no errors then we shall start the radio
1290 usbvision->radio = 1;
1291 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
483dfdb6
TM		 1292 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1293 usbvision->user++;
1294 }
1295
1296 if (errCode) {
1297 if (PowerOnAtOpen) {
1ff16c20 1298 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 1299 usbvision_power_off(usbvision);
1300 usbvision->initialized = 0;
1301 }
1302 }
544e6175 1303out:
289d4d2f 1304 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1305 return errCode;
1306}
1307
1308
1309static int usbvision_radio_close(struct inode *inode, struct file *file)
1310{
1311 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1312 struct usb_usbvision *usbvision =
1313 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1314 int errCode = 0;
1315
1316 PDEBUG(DBG_IO, "");
1317
289d4d2f 1318 mutex_lock(&usbvision->lock);
483dfdb6 1319
2a9f8b5d
TM		 1320 /* Set packet size to 0 */
1321 usbvision->ifaceAlt=0;
1322 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1323 usbvision->ifaceAlt);
1324
483dfdb6
TM		 1325 usbvision_audio_off(usbvision);
1326 usbvision->radio=0;
1327 usbvision->user--;
1328
1329 if (PowerOnAtOpen) {
1330 usbvision_set_powerOffTimer(usbvision);
1331 usbvision->initialized = 0;
1332 }
1333
289d4d2f 1334 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1335
1336 if (usbvision->remove_pending) {
d2db42dd 1337 printk(KERN_INFO "%s: Final disconnect\n", __func__);
483dfdb6
TM		 1338 usbvision_release(usbvision);
1339 }
1340
483dfdb6 1341 PDEBUG(DBG_IO, "success");
483dfdb6
TM		 1342 return errCode;
1343}
1344
483dfdb6
TM		 1345/*
1346 * Here comes the stuff for vbi on usbvision based devices
1347 *
1348 */
1349static int usbvision_vbi_open(struct inode *inode, struct file *file)
1350{
1351 /* TODO */
c5f48367 1352 return -ENODEV;
483dfdb6
TM		 1353}
1354
1355static int usbvision_vbi_close(struct inode *inode, struct file *file)
1356{
1357 /* TODO */
c5f48367 1358 return -ENODEV;
483dfdb6
TM		 1359}
1360
1361static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1362 unsigned int cmd, void *arg)
1363{
1364 /* TODO */
c5f48367 1365 return -ENOIOCTLCMD;
483dfdb6
TM		 1366}
1367
1368static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1369 unsigned int cmd, unsigned long arg)
1370{
1371 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1372}
1373
1374
1375//
1376// Video registration stuff
1377//
1378
1379// Video template
fa027c2a 1380static const struct file_operations usbvision_fops = {
483dfdb6 1381 .owner = THIS_MODULE,
483dfdb6
TM		 1382 .open = usbvision_v4l2_open,
1383 .release = usbvision_v4l2_close,
1384 .read = usbvision_v4l2_read,
1385 .mmap = usbvision_v4l2_mmap,
c5f48367 1386 .ioctl = video_ioctl2,
483dfdb6 1387 .llseek = no_llseek,
c5f48367 1388/* .poll = video_poll, */
c5f48367 1389 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6
TM		 1390};
1391static struct video_device usbvision_video_template = {
483dfdb6 1392 .owner = THIS_MODULE,
483dfdb6 1393 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
483dfdb6 1394 .fops = &usbvision_fops,
483dfdb6
TM		 1395 .name = "usbvision-video",
1396 .release = video_device_release,
483dfdb6 1397 .minor = -1,
c5f48367 1398 .vidioc_querycap = vidioc_querycap,
78b526a4
HV		 1399 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1400 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1401 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1402 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
c5f48367
TM		 1403 .vidioc_reqbufs = vidioc_reqbufs,
1404 .vidioc_querybuf = vidioc_querybuf,
1405 .vidioc_qbuf = vidioc_qbuf,
1406 .vidioc_dqbuf = vidioc_dqbuf,
1407 .vidioc_s_std = vidioc_s_std,
1408 .vidioc_enum_input = vidioc_enum_input,
1409 .vidioc_g_input = vidioc_g_input,
1410 .vidioc_s_input = vidioc_s_input,
1411 .vidioc_queryctrl = vidioc_queryctrl,
1412 .vidioc_g_audio = vidioc_g_audio,
ed4d6375 1413 .vidioc_s_audio = vidioc_s_audio,
c5f48367
TM		 1414 .vidioc_g_ctrl = vidioc_g_ctrl,
1415 .vidioc_s_ctrl = vidioc_s_ctrl,
1416 .vidioc_streamon = vidioc_streamon,
1417 .vidioc_streamoff = vidioc_streamoff,
1418#ifdef CONFIG_VIDEO_V4L1_COMPAT
1419/* .vidiocgmbuf = vidiocgmbuf, */
1420#endif
1421 .vidioc_g_tuner = vidioc_g_tuner,
1422 .vidioc_s_tuner = vidioc_s_tuner,
1423 .vidioc_g_frequency = vidioc_g_frequency,
1424 .vidioc_s_frequency = vidioc_s_frequency,
1425#ifdef CONFIG_VIDEO_ADV_DEBUG
1426 .vidioc_g_register = vidioc_g_register,
1427 .vidioc_s_register = vidioc_s_register,
1428#endif
1429 .tvnorms = USBVISION_NORMS,
1430 .current_norm = V4L2_STD_PAL
483dfdb6
TM		 1431};
1432
1433
1434// Radio template
fa027c2a 1435static const struct file_operations usbvision_radio_fops = {
483dfdb6 1436 .owner = THIS_MODULE,
483dfdb6
TM		 1437 .open = usbvision_radio_open,
1438 .release = usbvision_radio_close,
c5f48367 1439 .ioctl = video_ioctl2,
483dfdb6 1440 .llseek = no_llseek,
c5f48367 1441 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6
TM		 1442};
1443
1444static struct video_device usbvision_radio_template=
1445{
483dfdb6 1446 .owner = THIS_MODULE,
483dfdb6 1447 .type = VID_TYPE_TUNER,
483dfdb6 1448 .fops = &usbvision_radio_fops,
483dfdb6 1449 .name = "usbvision-radio",
c5f48367 1450 .release = video_device_release,
483dfdb6 1451 .minor = -1,
c5f48367
TM		 1452 .vidioc_querycap = vidioc_querycap,
1453 .vidioc_enum_input = vidioc_enum_input,
1454 .vidioc_g_input = vidioc_g_input,
1455 .vidioc_s_input = vidioc_s_input,
1456 .vidioc_queryctrl = vidioc_queryctrl,
1457 .vidioc_g_audio = vidioc_g_audio,
ed4d6375 1458 .vidioc_s_audio = vidioc_s_audio,
c5f48367
TM		 1459 .vidioc_g_ctrl = vidioc_g_ctrl,
1460 .vidioc_s_ctrl = vidioc_s_ctrl,
1461 .vidioc_g_tuner = vidioc_g_tuner,
1462 .vidioc_s_tuner = vidioc_s_tuner,
1463 .vidioc_g_frequency = vidioc_g_frequency,
1464 .vidioc_s_frequency = vidioc_s_frequency,
1465
1466 .tvnorms = USBVISION_NORMS,
1467 .current_norm = V4L2_STD_PAL
483dfdb6
TM		 1468};
1469
483dfdb6 1470// vbi template
fa027c2a 1471static const struct file_operations usbvision_vbi_fops = {
483dfdb6 1472 .owner = THIS_MODULE,
483dfdb6
TM		 1473 .open = usbvision_vbi_open,
1474 .release = usbvision_vbi_close,
1475 .ioctl = usbvision_vbi_ioctl,
1476 .llseek = no_llseek,
c5f48367 1477 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6
TM		 1478};
1479
1480static struct video_device usbvision_vbi_template=
1481{
483dfdb6 1482 .owner = THIS_MODULE,
483dfdb6 1483 .type = VID_TYPE_TUNER,
483dfdb6 1484 .fops = &usbvision_vbi_fops,
483dfdb6
TM		 1485 .release = video_device_release,
1486 .name = "usbvision-vbi",
483dfdb6
TM		 1487 .minor = -1,
1488};
1489
1490
1491static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1492 struct video_device *vdev_template,
1493 char *name)
1494{
1495 struct usb_device *usb_dev = usbvision->dev;
1496 struct video_device *vdev;
1497
1498 if (usb_dev == NULL) {
d2db42dd 1499 err("%s: usbvision->dev is not set", __func__);
483dfdb6
TM		 1500 return NULL;
1501 }
1502
1503 vdev = video_device_alloc();
1504 if (NULL == vdev) {
1505 return NULL;
1506 }
1507 *vdev = *vdev_template;
1508// vdev->minor = -1;
5e85e732 1509 vdev->parent = &usb_dev->dev;
483dfdb6
TM		 1510 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1511 video_set_drvdata(vdev, usbvision);
1512 return vdev;
1513}
1514
1515// unregister video4linux devices
1516static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1517{
1518 // vbi Device:
1519 if (usbvision->vbi) {
c5f48367
TM		 1520 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1521 usbvision->vbi->minor & 0x1f);
483dfdb6
TM		 1522 if (usbvision->vbi->minor != -1) {
1523 video_unregister_device(usbvision->vbi);
c5f48367 1524 } else {
483dfdb6
TM		 1525 video_device_release(usbvision->vbi);
1526 }
1527 usbvision->vbi = NULL;
1528 }
1529
1530 // Radio Device:
1531 if (usbvision->rdev) {
c5f48367
TM		 1532 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1533 usbvision->rdev->minor & 0x1f);
483dfdb6
TM		 1534 if (usbvision->rdev->minor != -1) {
1535 video_unregister_device(usbvision->rdev);
c5f48367 1536 } else {
483dfdb6
TM		 1537 video_device_release(usbvision->rdev);
1538 }
1539 usbvision->rdev = NULL;
1540 }
1541
1542 // Video Device:
1543 if (usbvision->vdev) {
c5f48367
TM		 1544 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1545 usbvision->vdev->minor & 0x1f);
483dfdb6
TM		 1546 if (usbvision->vdev->minor != -1) {
1547 video_unregister_device(usbvision->vdev);
c5f48367 1548 } else {
483dfdb6
TM		 1549 video_device_release(usbvision->vdev);
1550 }
1551 usbvision->vdev = NULL;
1552 }
1553}
1554
1555// register video4linux devices
1556static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1557{
1558 // Video Device:
c5f48367
TM		 1559 usbvision->vdev = usbvision_vdev_init(usbvision,
1560 &usbvision_video_template,
1561 "USBVision Video");
483dfdb6
TM		 1562 if (usbvision->vdev == NULL) {
1563 goto err_exit;
1564 }
c5f48367
TM		 1565 if (video_register_device(usbvision->vdev,
1566 VFL_TYPE_GRABBER,
1567 video_nr)<0) {
483dfdb6
TM		 1568 goto err_exit;
1569 }
c5f48367
TM		 1570 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1571 usbvision->nr,usbvision->vdev->minor & 0x1f);
483dfdb6
TM		 1572
1573 // Radio Device:
1574 if (usbvision_device_data[usbvision->DevModel].Radio) {
1575 // usbvision has radio
c5f48367
TM		 1576 usbvision->rdev = usbvision_vdev_init(usbvision,
1577 &usbvision_radio_template,
1578 "USBVision Radio");
483dfdb6
TM		 1579 if (usbvision->rdev == NULL) {
1580 goto err_exit;
1581 }
c5f48367
TM		 1582 if (video_register_device(usbvision->rdev,
1583 VFL_TYPE_RADIO,
1584 radio_nr)<0) {
483dfdb6
TM		 1585 goto err_exit;
1586 }
c5f48367
TM		 1587 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1588 usbvision->nr, usbvision->rdev->minor & 0x1f);
483dfdb6
TM		 1589 }
1590 // vbi Device:
1591 if (usbvision_device_data[usbvision->DevModel].vbi) {
c5f48367
TM		 1592 usbvision->vbi = usbvision_vdev_init(usbvision,
1593 &usbvision_vbi_template,
1594 "USBVision VBI");
483dfdb6
TM		 1595 if (usbvision->vdev == NULL) {
1596 goto err_exit;
1597 }
c5f48367
TM		 1598 if (video_register_device(usbvision->vbi,
1599 VFL_TYPE_VBI,
1600 vbi_nr)<0) {
483dfdb6
TM		 1601 goto err_exit;
1602 }
c5f48367
TM		 1603 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1604 usbvision->nr,usbvision->vbi->minor & 0x1f);
483dfdb6
TM		 1605 }
1606 // all done
1607 return 0;
1608
1609 err_exit:
1610 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1611 usbvision_unregister_video(usbvision);
1612 return -1;
1613}
1614
1615/*
1616 * usbvision_alloc()
1617 *
c5f48367
TM		 1618 * This code allocates the struct usb_usbvision.
1619 * It is filled with default values.
483dfdb6
TM		 1620 *
1621 * Returns NULL on error, a pointer to usb_usbvision else.
1622 *
1623 */
1624static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1625{
1626 struct usb_usbvision *usbvision;
1627
c5f48367
TM		 1628 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1629 NULL) {
483dfdb6
TM		 1630 goto err_exit;
1631 }
1632
1633 usbvision->dev = dev;
1634
289d4d2f 1635 mutex_init(&usbvision->lock); /* available */
483dfdb6
TM		 1636
1637 // prepare control urb for control messages during interrupts
1638 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1639 if (usbvision->ctrlUrb == NULL) {
1640 goto err_exit;
1641 }
1642 init_waitqueue_head(&usbvision->ctrlUrb_wq);
483dfdb6
TM		 1643
1644 usbvision_init_powerOffTimer(usbvision);
1645
1646 return usbvision;
1647
1648err_exit:
1649 if (usbvision && usbvision->ctrlUrb) {
1650 usb_free_urb(usbvision->ctrlUrb);
1651 }
1652 if (usbvision) {
1653 kfree(usbvision);
1654 }
1655 return NULL;
1656}
1657
1658/*
1659 * usbvision_release()
1660 *
1661 * This code does final release of struct usb_usbvision. This happens
1662 * after the device is disconnected -and- all clients closed their files.
1663 *
1664 */
1665static void usbvision_release(struct usb_usbvision *usbvision)
1666{
1667 PDEBUG(DBG_PROBE, "");
1668
289d4d2f 1669 mutex_lock(&usbvision->lock);
483dfdb6
TM		 1670
1671 usbvision_reset_powerOffTimer(usbvision);
1672
1673 usbvision->initialized = 0;
1674
289d4d2f 1675 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1676
1677 usbvision_remove_sysfs(usbvision->vdev);
1678 usbvision_unregister_video(usbvision);
1679
1680 if (usbvision->ctrlUrb) {
1681 usb_free_urb(usbvision->ctrlUrb);
1682 }
1683
1684 kfree(usbvision);
1685
1686 PDEBUG(DBG_PROBE, "success");
1687}
1688
1689
c5f48367 1690/*********************** usb interface **********************************/
483dfdb6
TM		 1691
1692static void usbvision_configure_video(struct usb_usbvision *usbvision)
1693{
c5f48367 1694 int model;
483dfdb6
TM		 1695
1696 if (usbvision == NULL)
1697 return;
1698
1699 model = usbvision->DevModel;
1700 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1701
c682b3a7 1702 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
c5f48367
TM		 1703 usbvision->Vin_Reg2_Preset =
1704 usbvision_device_data[usbvision->DevModel].Vin_Reg2;
483dfdb6
TM		 1705 } else {
1706 usbvision->Vin_Reg2_Preset = 0;
1707 }
1708
c5f48367 1709 usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
483dfdb6
TM		 1710
1711 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1712 usbvision->ctl_input = 0;
1713
1714 /* This should be here to make i2c clients to be able to register */
c5f48367
TM		 1715 /* first switch off audio */
1716 usbvision_audio_off(usbvision);
483dfdb6 1717 if (!PowerOnAtOpen) {
c5f48367
TM		 1718 /* and then power up the noisy tuner */
1719 usbvision_power_on(usbvision);
1ff16c20 1720 usbvision_i2c_register(usbvision);
483dfdb6
TM		 1721 }
1722}
1723
1724/*
1725 * usbvision_probe()
1726 *
1727 * This procedure queries device descriptor and accepts the interface
1728 * if it looks like USBVISION video device
1729 *
1730 */
659ae56d
MCC		 1731static int __devinit usbvision_probe(struct usb_interface *intf,
1732 const struct usb_device_id *devid)
483dfdb6 1733{
2a9f8b5d
TM		 1734 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1735 struct usb_interface *uif;
483dfdb6
TM		 1736 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1737 const struct usb_host_interface *interface;
1738 struct usb_usbvision *usbvision = NULL;
1739 const struct usb_endpoint_descriptor *endpoint;
2a9f8b5d 1740 int model,i;
483dfdb6
TM		 1741
1742 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
659ae56d
MCC		 1743 dev->descriptor.idVendor,
1744 dev->descriptor.idProduct, ifnum);
2a9f8b5d 1745
659ae56d 1746 model = devid->driver_info;
f8a389db 1747 if ( (model<0) || (model>=usbvision_device_data_size) ) {
672d013b 1748 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
f8a389db
MCC		 1749 return -ENODEV;
1750 }
d2db42dd 1751 printk(KERN_INFO "%s: %s found\n", __func__,
659ae56d 1752 usbvision_device_data[model].ModelString);
483dfdb6 1753
483dfdb6
TM		 1754 if (usbvision_device_data[model].Interface >= 0) {
1755 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
c5f48367 1756 } else {
483dfdb6
TM		 1757 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1758 }
1759 endpoint = &interface->endpoint[1].desc;
c5f48367
TM		 1760 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1761 USB_ENDPOINT_XFER_ISOC) {
1762 err("%s: interface %d. has non-ISO endpoint!",
d2db42dd 1763 __func__, ifnum);
c5f48367 1764 err("%s: Endpoint attributes %d",
d2db42dd 1765 __func__, endpoint->bmAttributes);
483dfdb6
TM		 1766 return -ENODEV;
1767 }
c5f48367
TM		 1768 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1769 USB_DIR_OUT) {
1770 err("%s: interface %d. has ISO OUT endpoint!",
d2db42dd 1771 __func__, ifnum);
483dfdb6
TM		 1772 return -ENODEV;
1773 }
1774
483dfdb6 1775 if ((usbvision = usbvision_alloc(dev)) == NULL) {
d2db42dd 1776 err("%s: couldn't allocate USBVision struct", __func__);
483dfdb6
TM		 1777 return -ENOMEM;
1778 }
659ae56d 1779
483dfdb6
TM		 1780 if (dev->descriptor.bNumConfigurations > 1) {
1781 usbvision->bridgeType = BRIDGE_NT1004;
c5f48367 1782 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
483dfdb6 1783 usbvision->bridgeType = BRIDGE_NT1005;
c5f48367 1784 } else {
483dfdb6
TM		 1785 usbvision->bridgeType = BRIDGE_NT1003;
1786 }
1787 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1788
289d4d2f 1789 mutex_lock(&usbvision->lock);
483dfdb6 1790
2a9f8b5d
TM		 1791 /* compute alternate max packet sizes */
1792 uif = dev->actconfig->interface[0];
1793
1794 usbvision->num_alt=uif->num_altsetting;
1795 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1796 usbvision->alt_max_pkt_size = kmalloc(32*
1797 usbvision->num_alt,GFP_KERNEL);
1798 if (usbvision->alt_max_pkt_size == NULL) {
1799 err("usbvision: out of memory!\n");
0991112c 1800 mutex_unlock(&usbvision->lock);
2a9f8b5d
TM		 1801 return -ENOMEM;
1802 }
1803
1804 for (i = 0; i < usbvision->num_alt ; i++) {
1805 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1806 wMaxPacketSize);
1807 usbvision->alt_max_pkt_size[i] =
1808 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1809 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1810 usbvision->alt_max_pkt_size[i]);
1811 }
1812
1813
483dfdb6
TM		 1814 usbvision->nr = usbvision_nr++;
1815
1816 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1817 if (usbvision->have_tuner) {
1818 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1819 }
1820
1821 usbvision->tuner_addr = ADDR_UNSET;
1822
1823 usbvision->DevModel = model;
1824 usbvision->remove_pending = 0;
1825 usbvision->iface = ifnum;
2a9f8b5d 1826 usbvision->ifaceAlt = 0;
483dfdb6
TM		 1827 usbvision->video_endp = endpoint->bEndpointAddress;
1828 usbvision->isocPacketSize = 0;
1829 usbvision->usb_bandwidth = 0;
1830 usbvision->user = 0;
1831 usbvision->streaming = Stream_Off;
1832 usbvision_register_video(usbvision);
1833 usbvision_configure_video(usbvision);
289d4d2f 1834 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1835
1836
1837 usb_set_intfdata (intf, usbvision);
1838 usbvision_create_sysfs(usbvision->vdev);
1839
1840 PDEBUG(DBG_PROBE, "success");
1841 return 0;
1842}
1843
1844
1845/*
1846 * usbvision_disconnect()
1847 *
1848 * This procedure stops all driver activity, deallocates interface-private
1849 * structure (pointed by 'ptr') and after that driver should be removable
1850 * with no ill consequences.
1851 *
1852 */
1853static void __devexit usbvision_disconnect(struct usb_interface *intf)
1854{
1855 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1856
1857 PDEBUG(DBG_PROBE, "");
1858
1859 if (usbvision == NULL) {
d2db42dd 1860 err("%s: usb_get_intfdata() failed", __func__);
483dfdb6
TM		 1861 return;
1862 }
1863 usb_set_intfdata (intf, NULL);
1864
289d4d2f 1865 mutex_lock(&usbvision->lock);
483dfdb6
TM		 1866
1867 // At this time we ask to cancel outstanding URBs
1868 usbvision_stop_isoc(usbvision);
1869
1870 if (usbvision->power) {
1ff16c20 1871 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 1872 usbvision_power_off(usbvision);
1873 }
1874 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1875
1876 usb_put_dev(usbvision->dev);
1877 usbvision->dev = NULL; // USB device is no more
1878
289d4d2f 1879 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1880
1881 if (usbvision->user) {
c5f48367 1882 printk(KERN_INFO "%s: In use, disconnect pending\n",
d2db42dd 1883 __func__);
483dfdb6
TM		 1884 wake_up_interruptible(&usbvision->wait_frame);
1885 wake_up_interruptible(&usbvision->wait_stream);
c5f48367 1886 } else {
483dfdb6
TM		 1887 usbvision_release(usbvision);
1888 }
1889
1890 PDEBUG(DBG_PROBE, "success");
483dfdb6
TM		 1891}
1892
1893static struct usb_driver usbvision_driver = {
1894 .name = "usbvision",
1895 .id_table = usbvision_table,
1896 .probe = usbvision_probe,
1897 .disconnect = usbvision_disconnect
1898};
1899
483dfdb6
TM		 1900/*
1901 * usbvision_init()
1902 *
1903 * This code is run to initialize the driver.
1904 *
1905 */
1906static int __init usbvision_init(void)
1907{
1908 int errCode;
1909
1910 PDEBUG(DBG_PROBE, "");
1911
483dfdb6
TM		 1912 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
1913 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
c876a346 1914 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
483dfdb6
TM		 1915
1916 /* disable planar mode support unless compression enabled */
1917 if (isocMode != ISOC_MODE_COMPRESS ) {
1918 // FIXME : not the right way to set supported flag
1919 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1920 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1921 }
1922
483dfdb6
TM		 1923 errCode = usb_register(&usbvision_driver);
1924
1925 if (errCode == 0) {
de6a1b8e 1926 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
483dfdb6
TM		 1927 PDEBUG(DBG_PROBE, "success");
1928 }
1929 return errCode;
1930}
1931
1932static void __exit usbvision_exit(void)
1933{
1934 PDEBUG(DBG_PROBE, "");
1935
1936 usb_deregister(&usbvision_driver);
1937 PDEBUG(DBG_PROBE, "success");
1938}
1939
1940module_init(usbvision_init);
1941module_exit(usbvision_exit);
1942
1943/*
1944 * Overrides for Emacs so that we follow Linus's tabbing style.
1945 * ---------------------------------------------------------------------------
1946 * Local variables:
1947 * c-basic-offset: 8
1948 * End:
1949 */
Linux 6.x block layer and io_uring tree(s)