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V4L/DVB (8787): v4l2-dev: cleanups and add video_drvdata helper function
[linux-2.6-block.git] / drivers / media / video / usbvision / usbvision-video.c
CommitLineData
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/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>
35ea11ff 67#include <media/v4l2-ioctl.h>
483dfdb6 68#include <media/tuner.h>
483dfdb6 69
a1ed551c 70#include <linux/workqueue.h>
483dfdb6
TM		 71
72#ifdef CONFIG_KMOD
73#include <linux/kmod.h>
74#endif
75
76#include "usbvision.h"
659ae56d 77#include "usbvision-cards.h"
483dfdb6 78
c5f48367
TM		 79#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
80 Dwaine Garden <DwaineGarden@rogers.com>"
483dfdb6
TM		 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
c5f48367
TM		 88#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
89USBVISION_DRIVER_VERSION_MINOR,\
90USBVISION_DRIVER_VERSION_PATCHLEVEL)
91#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
92 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
93 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
483dfdb6
TM		 94
95#define ENABLE_HEXDUMP 0 /* Enable if you need it */
96
97
483dfdb6 98#ifdef USBVISION_DEBUG
df18c319 99 #define PDEBUG(level, fmt, args...) { \
c5f48367 100 if (video_debug & (level)) \
df18c319
TM		 101 info("[%s:%d] " fmt, __func__, __LINE__ , ## args); \
102 }
483dfdb6
TM		 103#else
104 #define PDEBUG(level, fmt, args...) do {} while(0)
105#endif
106
483dfdb6
TM		 107#define DBG_IO 1<<1
108#define DBG_PROBE 1<<2
c876a346 109#define DBG_MMAP 1<<3
483dfdb6
TM		 110
111//String operations
112#define rmspace(str) while(*str==' ') str++;
113#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
114
115
c5f48367 116/* sequential number of usbvision device */
ff699e6b 117static int usbvision_nr;
483dfdb6
TM		 118
119static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
120 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
121 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
122 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
123 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
124 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
125 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
126 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
127 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
128};
129
c5f48367 130/* Function prototypes */
483dfdb6
TM		 131static void usbvision_release(struct usb_usbvision *usbvision);
132
c84e6036 133/* Default initialization of device driver parameters */
c5f48367
TM		 134/* Set the default format for ISOC endpoint */
135static int isocMode = ISOC_MODE_COMPRESS;
136/* Set the default Debug Mode of the device driver */
ff699e6b 137static int video_debug;
c5f48367
TM		 138/* Set the default device to power on at startup */
139static int PowerOnAtOpen = 1;
140/* Sequential Number of Video Device */
141static int video_nr = -1;
142/* Sequential Number of Radio Device */
143static int radio_nr = -1;
144/* Sequential Number of VBI Device */
145static int vbi_nr = -1;
146
147/* Grab parameters for the device driver */
148
149/* Showing parameters under SYSFS */
483dfdb6
TM		 150module_param(isocMode, int, 0444);
151module_param(video_debug, int, 0444);
152module_param(PowerOnAtOpen, int, 0444);
153module_param(video_nr, int, 0444);
154module_param(radio_nr, int, 0444);
155module_param(vbi_nr, int, 0444);
483dfdb6
TM		 156
157MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
158MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
159MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
160MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
161MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
162MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
483dfdb6
TM		 163
164
165// Misc stuff
166MODULE_AUTHOR(DRIVER_AUTHOR);
167MODULE_DESCRIPTION(DRIVER_DESC);
168MODULE_LICENSE(DRIVER_LICENSE);
a1ed551c
MCC		 169MODULE_VERSION(USBVISION_VERSION_STRING);
170MODULE_ALIAS(DRIVER_ALIAS);
483dfdb6
TM		 171
172
c5f48367
TM		 173/*****************************************************************************/
174/* SYSFS Code - Copied from the stv680.c usb module. */
175/* Device information is located at /sys/class/video4linux/video0 */
176/* Device parameters information is located at /sys/module/usbvision */
177/* Device USB Information is located at */
178/* /sys/bus/usb/drivers/USBVision Video Grabber */
179/*****************************************************************************/
483dfdb6 180
483dfdb6
TM		 181#define YES_NO(x) ((x) ? "Yes" : "No")
182
54bd5b66 183static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
483dfdb6 184{
c5f48367 185 struct video_device *vdev =
22a04f10 186 container_of(cd, struct video_device, dev);
483dfdb6
TM		 187 return video_get_drvdata(vdev);
188}
189
54bd5b66
KS		 190static ssize_t show_version(struct device *cd,
191 struct device_attribute *attr, char *buf)
483dfdb6
TM		 192{
193 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
194}
54bd5b66 195static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
483dfdb6 196
54bd5b66
KS		 197static ssize_t show_model(struct device *cd,
198 struct device_attribute *attr, char *buf)
483dfdb6 199{
c5f48367 200 struct video_device *vdev =
22a04f10 201 container_of(cd, struct video_device, dev);
483dfdb6 202 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 203 return sprintf(buf, "%s\n",
204 usbvision_device_data[usbvision->DevModel].ModelString);
483dfdb6 205}
54bd5b66 206static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
483dfdb6 207
54bd5b66
KS		 208static ssize_t show_hue(struct device *cd,
209 struct device_attribute *attr, char *buf)
483dfdb6 210{
c5f48367 211 struct video_device *vdev =
22a04f10 212 container_of(cd, struct video_device, dev);
483dfdb6
TM		 213 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
214 struct v4l2_control ctrl;
215 ctrl.id = V4L2_CID_HUE;
216 ctrl.value = 0;
ed00b41d
DG		 217 if(usbvision->user)
218 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 219 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6 220}
54bd5b66 221static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
483dfdb6 222
54bd5b66
KS		 223static ssize_t show_contrast(struct device *cd,
224 struct device_attribute *attr, char *buf)
483dfdb6 225{
c5f48367 226 struct video_device *vdev =
22a04f10 227 container_of(cd, struct video_device, dev);
483dfdb6
TM		 228 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
229 struct v4l2_control ctrl;
230 ctrl.id = V4L2_CID_CONTRAST;
231 ctrl.value = 0;
ed00b41d
DG		 232 if(usbvision->user)
233 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 234 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6 235}
54bd5b66 236static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
483dfdb6 237
54bd5b66
KS		 238static ssize_t show_brightness(struct device *cd,
239 struct device_attribute *attr, char *buf)
483dfdb6 240{
c5f48367 241 struct video_device *vdev =
22a04f10 242 container_of(cd, struct video_device, dev);
483dfdb6
TM		 243 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
244 struct v4l2_control ctrl;
245 ctrl.id = V4L2_CID_BRIGHTNESS;
246 ctrl.value = 0;
ed00b41d
DG		 247 if(usbvision->user)
248 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 249 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6 250}
54bd5b66 251static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
483dfdb6 252
54bd5b66
KS		 253static ssize_t show_saturation(struct device *cd,
254 struct device_attribute *attr, char *buf)
483dfdb6 255{
c5f48367 256 struct video_device *vdev =
22a04f10 257 container_of(cd, struct video_device, dev);
483dfdb6
TM		 258 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
259 struct v4l2_control ctrl;
260 ctrl.id = V4L2_CID_SATURATION;
261 ctrl.value = 0;
ed00b41d
DG		 262 if(usbvision->user)
263 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 264 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6 265}
54bd5b66 266static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
483dfdb6 267
54bd5b66
KS		 268static ssize_t show_streaming(struct device *cd,
269 struct device_attribute *attr, char *buf)
483dfdb6 270{
c5f48367 271 struct video_device *vdev =
22a04f10 272 container_of(cd, struct video_device, dev);
483dfdb6 273 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 274 return sprintf(buf, "%s\n",
275 YES_NO(usbvision->streaming==Stream_On?1:0));
483dfdb6 276}
54bd5b66 277static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
483dfdb6 278
54bd5b66
KS		 279static ssize_t show_compression(struct device *cd,
280 struct device_attribute *attr, char *buf)
483dfdb6 281{
c5f48367 282 struct video_device *vdev =
22a04f10 283 container_of(cd, struct video_device, dev);
483dfdb6 284 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 285 return sprintf(buf, "%s\n",
286 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
483dfdb6 287}
54bd5b66 288static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
483dfdb6 289
54bd5b66
KS		 290static ssize_t show_device_bridge(struct device *cd,
291 struct device_attribute *attr, char *buf)
483dfdb6 292{
c5f48367 293 struct video_device *vdev =
22a04f10 294 container_of(cd, struct video_device, dev);
483dfdb6
TM		 295 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
296 return sprintf(buf, "%d\n", usbvision->bridgeType);
297}
54bd5b66 298static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
483dfdb6
TM		 299
300static void usbvision_create_sysfs(struct video_device *vdev)
301{
302 int res;
ed00b41d
DG		 303 if (!vdev)
304 return;
305 do {
22a04f10 306 res = device_create_file(&vdev->dev, &dev_attr_version);
ed00b41d
DG		 307 if (res<0)
308 break;
22a04f10 309 res = device_create_file(&vdev->dev, &dev_attr_model);
ed00b41d
DG		 310 if (res<0)
311 break;
22a04f10 312 res = device_create_file(&vdev->dev, &dev_attr_hue);
ed00b41d
DG		 313 if (res<0)
314 break;
22a04f10 315 res = device_create_file(&vdev->dev, &dev_attr_contrast);
ed00b41d
DG		 316 if (res<0)
317 break;
22a04f10 318 res = device_create_file(&vdev->dev, &dev_attr_brightness);
ed00b41d
DG		 319 if (res<0)
320 break;
22a04f10 321 res = device_create_file(&vdev->dev, &dev_attr_saturation);
ed00b41d
DG		 322 if (res<0)
323 break;
22a04f10 324 res = device_create_file(&vdev->dev, &dev_attr_streaming);
ed00b41d
DG		 325 if (res<0)
326 break;
22a04f10 327 res = device_create_file(&vdev->dev, &dev_attr_compression);
ed00b41d
DG		 328 if (res<0)
329 break;
22a04f10 330 res = device_create_file(&vdev->dev, &dev_attr_bridge);
ed00b41d
DG		 331 if (res>=0)
332 return;
333 } while (0);
334
d2db42dd 335 err("%s error: %d\n", __func__, res);
483dfdb6
TM		 336}
337
338static void usbvision_remove_sysfs(struct video_device *vdev)
339{
340 if (vdev) {
22a04f10
HV		 341 device_remove_file(&vdev->dev, &dev_attr_version);
342 device_remove_file(&vdev->dev, &dev_attr_model);
343 device_remove_file(&vdev->dev, &dev_attr_hue);
344 device_remove_file(&vdev->dev, &dev_attr_contrast);
345 device_remove_file(&vdev->dev, &dev_attr_brightness);
346 device_remove_file(&vdev->dev, &dev_attr_saturation);
347 device_remove_file(&vdev->dev, &dev_attr_streaming);
348 device_remove_file(&vdev->dev, &dev_attr_compression);
349 device_remove_file(&vdev->dev, &dev_attr_bridge);
483dfdb6
TM		 350 }
351}
352
483dfdb6
TM		 353/*
354 * usbvision_open()
355 *
356 * This is part of Video 4 Linux API. The driver can be opened by one
357 * client only (checks internal counter 'usbvision->user'). The procedure
358 * then allocates buffers needed for video processing.
359 *
360 */
361static int usbvision_v4l2_open(struct inode *inode, struct file *file)
362{
363 struct video_device *dev = video_devdata(file);
c5f48367
TM		 364 struct usb_usbvision *usbvision =
365 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 366 int errCode = 0;
367
368 PDEBUG(DBG_IO, "open");
369
d56dc612 370 lock_kernel();
483dfdb6
TM		 371 usbvision_reset_powerOffTimer(usbvision);
372
373 if (usbvision->user)
374 errCode = -EBUSY;
375 else {
6f78e186
TM		 376 /* Allocate memory for the scratch ring buffer */
377 errCode = usbvision_scratch_alloc(usbvision);
378 if (isocMode==ISOC_MODE_COMPRESS) {
c5f48367
TM		 379 /* Allocate intermediate decompression buffers
380 only if needed */
6f78e186 381 errCode = usbvision_decompress_alloc(usbvision);
483dfdb6
TM		 382 }
383 if (errCode) {
384 /* Deallocate all buffers if trouble */
483dfdb6 385 usbvision_scratch_free(usbvision);
483dfdb6
TM		 386 usbvision_decompress_free(usbvision);
387 }
388 }
389
390 /* If so far no errors then we shall start the camera */
391 if (!errCode) {
289d4d2f 392 mutex_lock(&usbvision->lock);
483dfdb6
TM		 393 if (usbvision->power == 0) {
394 usbvision_power_on(usbvision);
1ff16c20 395 usbvision_i2c_register(usbvision);
483dfdb6
TM		 396 }
397
398 /* Send init sequence only once, it's large! */
399 if (!usbvision->initialized) {
400 int setup_ok = 0;
401 setup_ok = usbvision_setup(usbvision,isocMode);
402 if (setup_ok)
403 usbvision->initialized = 1;
404 else
405 errCode = -EBUSY;
406 }
407
408 if (!errCode) {
409 usbvision_begin_streaming(usbvision);
410 errCode = usbvision_init_isoc(usbvision);
c5f48367 411 /* device must be initialized before isoc transfer */
483dfdb6
TM		 412 usbvision_muxsel(usbvision,0);
413 usbvision->user++;
c5f48367 414 } else {
483dfdb6 415 if (PowerOnAtOpen) {
1ff16c20 416 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 417 usbvision_power_off(usbvision);
418 usbvision->initialized = 0;
419 }
420 }
289d4d2f 421 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 422 }
423
483dfdb6
TM		 424 /* prepare queues */
425 usbvision_empty_framequeues(usbvision);
426
427 PDEBUG(DBG_IO, "success");
d56dc612 428 unlock_kernel();
483dfdb6
TM		 429 return errCode;
430}
431
432/*
433 * usbvision_v4l2_close()
434 *
435 * This is part of Video 4 Linux API. The procedure
436 * stops streaming and deallocates all buffers that were earlier
437 * allocated in usbvision_v4l2_open().
438 *
439 */
440static int usbvision_v4l2_close(struct inode *inode, struct file *file)
441{
442 struct video_device *dev = video_devdata(file);
c5f48367
TM		 443 struct usb_usbvision *usbvision =
444 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 445
446 PDEBUG(DBG_IO, "close");
289d4d2f 447 mutex_lock(&usbvision->lock);
483dfdb6
TM		 448
449 usbvision_audio_off(usbvision);
450 usbvision_restart_isoc(usbvision);
451 usbvision_stop_isoc(usbvision);
452
453 usbvision_decompress_free(usbvision);
38284ba3 454 usbvision_frames_free(usbvision);
6f78e186 455 usbvision_empty_framequeues(usbvision);
483dfdb6 456 usbvision_scratch_free(usbvision);
483dfdb6
TM		 457
458 usbvision->user--;
459
460 if (PowerOnAtOpen) {
c5f48367
TM		 461 /* power off in a little while
462 to avoid off/on every close/open short sequences */
483dfdb6
TM		 463 usbvision_set_powerOffTimer(usbvision);
464 usbvision->initialized = 0;
465 }
466
289d4d2f 467 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 468
469 if (usbvision->remove_pending) {
d2db42dd 470 printk(KERN_INFO "%s: Final disconnect\n", __func__);
483dfdb6
TM		 471 usbvision_release(usbvision);
472 }
473
474 PDEBUG(DBG_IO, "success");
483dfdb6
TM		 475 return 0;
476}
477
478
479/*
480 * usbvision_ioctl()
481 *
482 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
483 *
484 */
c5f48367
TM		 485#ifdef CONFIG_VIDEO_ADV_DEBUG
486static int vidioc_g_register (struct file *file, void *priv,
487 struct v4l2_register *reg)
483dfdb6
TM		 488{
489 struct video_device *dev = video_devdata(file);
c5f48367
TM		 490 struct usb_usbvision *usbvision =
491 (struct usb_usbvision *) video_get_drvdata(dev);
492 int errCode;
483dfdb6 493
c5f48367
TM		 494 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
495 return -EINVAL;
496 /* NT100x has a 8-bit register space */
497 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
498 if (errCode < 0) {
499 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
d2db42dd 500 __func__, errCode);
c5f48367
TM		 501 return errCode;
502 }
bc147135 503 reg->val = errCode;
c5f48367
TM		 504 return 0;
505}
483dfdb6 506
c5f48367
TM		 507static int vidioc_s_register (struct file *file, void *priv,
508 struct v4l2_register *reg)
509{
510 struct video_device *dev = video_devdata(file);
511 struct usb_usbvision *usbvision =
512 (struct usb_usbvision *) video_get_drvdata(dev);
513 int errCode;
62d50add 514
c5f48367
TM		 515 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
516 return -EINVAL;
517 /* NT100x has a 8-bit register space */
bc147135
TP		 518 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
519 if (errCode < 0) {
c5f48367 520 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
d2db42dd 521 __func__, errCode);
c5f48367
TM		 522 return errCode;
523 }
524 return 0;
525}
483dfdb6 526#endif
c5f48367
TM		 527
528static int vidioc_querycap (struct file *file, void *priv,
529 struct v4l2_capability *vc)
530{
531 struct video_device *dev = video_devdata(file);
532 struct usb_usbvision *usbvision =
533 (struct usb_usbvision *) video_get_drvdata(dev);
534
535 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
536 strlcpy(vc->card,
537 usbvision_device_data[usbvision->DevModel].ModelString,
538 sizeof(vc->card));
539 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
540 sizeof(vc->bus_info));
541 vc->version = USBVISION_DRIVER_VERSION;
542 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
543 V4L2_CAP_AUDIO |
544 V4L2_CAP_READWRITE |
545 V4L2_CAP_STREAMING |
546 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
547 return 0;
548}
549
550static int vidioc_enum_input (struct file *file, void *priv,
551 struct v4l2_input *vi)
552{
553 struct video_device *dev = video_devdata(file);
554 struct usb_usbvision *usbvision =
555 (struct usb_usbvision *) video_get_drvdata(dev);
556 int chan;
557
558 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
559 return -EINVAL;
560 if (usbvision->have_tuner) {
561 chan = vi->index;
562 } else {
563 chan = vi->index + 1; /*skip Television string*/
564 }
565 /* Determine the requested input characteristics
566 specific for each usbvision card model */
567 switch(chan) {
568 case 0:
569 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
570 strcpy(vi->name, "White Video Input");
571 } else {
572 strcpy(vi->name, "Television");
573 vi->type = V4L2_INPUT_TYPE_TUNER;
574 vi->audioset = 1;
575 vi->tuner = chan;
576 vi->std = USBVISION_NORMS;
483dfdb6 577 }
c5f48367
TM		 578 break;
579 case 1:
580 vi->type = V4L2_INPUT_TYPE_CAMERA;
581 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
582 strcpy(vi->name, "Green Video Input");
583 } else {
584 strcpy(vi->name, "Composite Video Input");
483dfdb6 585 }
c5f48367
TM		 586 vi->std = V4L2_STD_PAL;
587 break;
588 case 2:
589 vi->type = V4L2_INPUT_TYPE_CAMERA;
590 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
591 strcpy(vi->name, "Yellow Video Input");
592 } else {
593 strcpy(vi->name, "S-Video Input");
483dfdb6 594 }
c5f48367
TM		 595 vi->std = V4L2_STD_PAL;
596 break;
597 case 3:
598 vi->type = V4L2_INPUT_TYPE_CAMERA;
599 strcpy(vi->name, "Red Video Input");
600 vi->std = V4L2_STD_PAL;
601 break;
602 }
603 return 0;
604}
483dfdb6 605
c5f48367
TM		 606static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
607{
608 struct video_device *dev = video_devdata(file);
609 struct usb_usbvision *usbvision =
610 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 611
c5f48367
TM		 612 *input = usbvision->ctl_input;
613 return 0;
614}
483dfdb6 615
c5f48367
TM		 616static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
617{
618 struct video_device *dev = video_devdata(file);
619 struct usb_usbvision *usbvision =
620 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 621
c5f48367
TM		 622 if ((input >= usbvision->video_inputs) || (input < 0) )
623 return -EINVAL;
483dfdb6 624
289d4d2f 625 mutex_lock(&usbvision->lock);
66a17879 626 usbvision_muxsel(usbvision, input);
c5f48367
TM		 627 usbvision_set_input(usbvision);
628 usbvision_set_output(usbvision,
629 usbvision->curwidth,
630 usbvision->curheight);
289d4d2f 631 mutex_unlock(&usbvision->lock);
c5f48367
TM		 632 return 0;
633}
483dfdb6 634
c5f48367
TM		 635static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
636{
637 struct video_device *dev = video_devdata(file);
638 struct usb_usbvision *usbvision =
639 (struct usb_usbvision *) video_get_drvdata(dev);
640 usbvision->tvnormId=*id;
483dfdb6 641
289d4d2f 642 mutex_lock(&usbvision->lock);
c5f48367
TM		 643 call_i2c_clients(usbvision, VIDIOC_S_STD,
644 &usbvision->tvnormId);
289d4d2f 645 mutex_unlock(&usbvision->lock);
66a17879
TM		 646 /* propagate the change to the decoder */
647 usbvision_muxsel(usbvision, usbvision->ctl_input);
483dfdb6 648
c5f48367
TM		 649 return 0;
650}
483dfdb6 651
c5f48367
TM		 652static int vidioc_g_tuner (struct file *file, void *priv,
653 struct v4l2_tuner *vt)
654{
655 struct video_device *dev = video_devdata(file);
656 struct usb_usbvision *usbvision =
657 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 658
c5f48367
TM		 659 if (!usbvision->have_tuner || vt->index) // Only tuner 0
660 return -EINVAL;
661 if(usbvision->radio) {
662 strcpy(vt->name, "Radio");
663 vt->type = V4L2_TUNER_RADIO;
664 } else {
665 strcpy(vt->name, "Television");
666 }
667 /* Let clients fill in the remainder of this struct */
668 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
483dfdb6 669
c5f48367
TM		 670 return 0;
671}
483dfdb6 672
c5f48367
TM		 673static int vidioc_s_tuner (struct file *file, void *priv,
674 struct v4l2_tuner *vt)
675{
676 struct video_device *dev = video_devdata(file);
677 struct usb_usbvision *usbvision =
678 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 679
c5f48367
TM		 680 // Only no or one tuner for now
681 if (!usbvision->have_tuner || vt->index)
682 return -EINVAL;
683 /* let clients handle this */
684 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
483dfdb6 685
c5f48367
TM		 686 return 0;
687}
483dfdb6 688
c5f48367
TM		 689static int vidioc_g_frequency (struct file *file, void *priv,
690 struct v4l2_frequency *freq)
691{
692 struct video_device *dev = video_devdata(file);
693 struct usb_usbvision *usbvision =
694 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 695
c5f48367
TM		 696 freq->tuner = 0; // Only one tuner
697 if(usbvision->radio) {
698 freq->type = V4L2_TUNER_RADIO;
699 } else {
700 freq->type = V4L2_TUNER_ANALOG_TV;
701 }
702 freq->frequency = usbvision->freq;
483dfdb6 703
c5f48367
TM		 704 return 0;
705}
483dfdb6 706
c5f48367
TM		 707static int vidioc_s_frequency (struct file *file, void *priv,
708 struct v4l2_frequency *freq)
709{
710 struct video_device *dev = video_devdata(file);
711 struct usb_usbvision *usbvision =
712 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 713
c5f48367
TM		 714 // Only no or one tuner for now
715 if (!usbvision->have_tuner || freq->tuner)
716 return -EINVAL;
483dfdb6 717
c5f48367
TM		 718 usbvision->freq = freq->frequency;
719 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
483dfdb6 720
c5f48367
TM		 721 return 0;
722}
483dfdb6 723
c5f48367
TM		 724static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
725{
726 struct video_device *dev = video_devdata(file);
727 struct usb_usbvision *usbvision =
728 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 729
c5f48367
TM		 730 memset(a,0,sizeof(*a));
731 if(usbvision->radio) {
732 strcpy(a->name,"Radio");
733 } else {
734 strcpy(a->name, "TV");
735 }
483dfdb6 736
c5f48367
TM		 737 return 0;
738}
483dfdb6 739
c5f48367
TM		 740static int vidioc_s_audio (struct file *file, void *fh,
741 struct v4l2_audio *a)
742{
743 if(a->index) {
744 return -EINVAL;
745 }
483dfdb6 746
c5f48367
TM		 747 return 0;
748}
483dfdb6 749
c5f48367
TM		 750static int vidioc_queryctrl (struct file *file, void *priv,
751 struct v4l2_queryctrl *ctrl)
752{
753 struct video_device *dev = video_devdata(file);
754 struct usb_usbvision *usbvision =
755 (struct usb_usbvision *) video_get_drvdata(dev);
756 int id=ctrl->id;
483dfdb6 757
c5f48367
TM		 758 memset(ctrl,0,sizeof(*ctrl));
759 ctrl->id=id;
483dfdb6 760
c5f48367 761 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
483dfdb6 762
c5f48367
TM		 763 if (!ctrl->type)
764 return -EINVAL;
483dfdb6 765
c5f48367
TM		 766 return 0;
767}
483dfdb6 768
c5f48367
TM		 769static int vidioc_g_ctrl (struct file *file, void *priv,
770 struct v4l2_control *ctrl)
771{
772 struct video_device *dev = video_devdata(file);
773 struct usb_usbvision *usbvision =
774 (struct usb_usbvision *) video_get_drvdata(dev);
775 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
483dfdb6 776
c5f48367
TM		 777 return 0;
778}
779
780static int vidioc_s_ctrl (struct file *file, void *priv,
781 struct v4l2_control *ctrl)
782{
783 struct video_device *dev = video_devdata(file);
784 struct usb_usbvision *usbvision =
785 (struct usb_usbvision *) video_get_drvdata(dev);
786 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
787
788 return 0;
789}
790
791static int vidioc_reqbufs (struct file *file,
792 void *priv, struct v4l2_requestbuffers *vr)
793{
794 struct video_device *dev = video_devdata(file);
795 struct usb_usbvision *usbvision =
796 (struct usb_usbvision *) video_get_drvdata(dev);
797 int ret;
798
799 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
800
801 /* Check input validity:
802 the user must do a VIDEO CAPTURE and MMAP method. */
803 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
804 (vr->memory != V4L2_MEMORY_MMAP))
805 return -EINVAL;
806
807 if(usbvision->streaming == Stream_On) {
808 if ((ret = usbvision_stream_interrupt(usbvision)))
809 return ret;
483dfdb6 810 }
c5f48367
TM		 811
812 usbvision_frames_free(usbvision);
813 usbvision_empty_framequeues(usbvision);
814 vr->count = usbvision_frames_alloc(usbvision,vr->count);
815
816 usbvision->curFrame = NULL;
817
483dfdb6
TM		 818 return 0;
819}
820
c5f48367
TM		 821static int vidioc_querybuf (struct file *file,
822 void *priv, struct v4l2_buffer *vb)
483dfdb6 823{
c5f48367
TM		 824 struct video_device *dev = video_devdata(file);
825 struct usb_usbvision *usbvision =
826 (struct usb_usbvision *) video_get_drvdata(dev);
827 struct usbvision_frame *frame;
828
829 /* FIXME : must control
830 that buffers are mapped (VIDIOC_REQBUFS has been called) */
831 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
832 return -EINVAL;
833 }
834 if(vb->index>=usbvision->num_frames) {
835 return -EINVAL;
836 }
837 /* Updating the corresponding frame state */
838 vb->flags = 0;
839 frame = &usbvision->frame[vb->index];
840 if(frame->grabstate >= FrameState_Ready)
841 vb->flags |= V4L2_BUF_FLAG_QUEUED;
842 if(frame->grabstate >= FrameState_Done)
843 vb->flags |= V4L2_BUF_FLAG_DONE;
844 if(frame->grabstate == FrameState_Unused)
845 vb->flags |= V4L2_BUF_FLAG_MAPPED;
846 vb->memory = V4L2_MEMORY_MMAP;
847
848 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
849
850 vb->memory = V4L2_MEMORY_MMAP;
851 vb->field = V4L2_FIELD_NONE;
852 vb->length = usbvision->curwidth*
853 usbvision->curheight*
854 usbvision->palette.bytes_per_pixel;
855 vb->timestamp = usbvision->frame[vb->index].timestamp;
856 vb->sequence = usbvision->frame[vb->index].sequence;
857 return 0;
483dfdb6
TM		 858}
859
c5f48367
TM		 860static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
861{
862 struct video_device *dev = video_devdata(file);
863 struct usb_usbvision *usbvision =
864 (struct usb_usbvision *) video_get_drvdata(dev);
865 struct usbvision_frame *frame;
866 unsigned long lock_flags;
867
868 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
869 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
870 return -EINVAL;
871 }
872 if(vb->index>=usbvision->num_frames) {
873 return -EINVAL;
874 }
875
876 frame = &usbvision->frame[vb->index];
877
878 if (frame->grabstate != FrameState_Unused) {
879 return -EAGAIN;
880 }
881
882 /* Mark it as ready and enqueue frame */
883 frame->grabstate = FrameState_Ready;
884 frame->scanstate = ScanState_Scanning;
885 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
886
887 vb->flags &= ~V4L2_BUF_FLAG_DONE;
888
889 /* set v4l2_format index */
890 frame->v4l2_format = usbvision->palette;
891
892 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
893 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
894 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
895
896 return 0;
897}
898
899static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
900{
901 struct video_device *dev = video_devdata(file);
902 struct usb_usbvision *usbvision =
903 (struct usb_usbvision *) video_get_drvdata(dev);
904 int ret;
905 struct usbvision_frame *f;
906 unsigned long lock_flags;
907
908 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
909 return -EINVAL;
910
911 if (list_empty(&(usbvision->outqueue))) {
912 if (usbvision->streaming == Stream_Idle)
913 return -EINVAL;
914 ret = wait_event_interruptible
915 (usbvision->wait_frame,
916 !list_empty(&(usbvision->outqueue)));
917 if (ret)
918 return ret;
919 }
920
921 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
922 f = list_entry(usbvision->outqueue.next,
923 struct usbvision_frame, frame);
924 list_del(usbvision->outqueue.next);
925 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
926
927 f->grabstate = FrameState_Unused;
928
929 vb->memory = V4L2_MEMORY_MMAP;
930 vb->flags = V4L2_BUF_FLAG_MAPPED |
931 V4L2_BUF_FLAG_QUEUED |
932 V4L2_BUF_FLAG_DONE;
933 vb->index = f->index;
934 vb->sequence = f->sequence;
935 vb->timestamp = f->timestamp;
936 vb->field = V4L2_FIELD_NONE;
937 vb->bytesused = f->scanlength;
938
939 return 0;
940}
941
942static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
943{
944 struct video_device *dev = video_devdata(file);
945 struct usb_usbvision *usbvision =
946 (struct usb_usbvision *) video_get_drvdata(dev);
947 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
948
949 usbvision->streaming = Stream_On;
950 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
951
952 return 0;
953}
954
955static int vidioc_streamoff(struct file *file,
956 void *priv, enum v4l2_buf_type type)
957{
958 struct video_device *dev = video_devdata(file);
959 struct usb_usbvision *usbvision =
960 (struct usb_usbvision *) video_get_drvdata(dev);
961 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
962
963 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
964 return -EINVAL;
965
966 if(usbvision->streaming == Stream_On) {
967 usbvision_stream_interrupt(usbvision);
968 /* Stop all video streamings */
969 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
970 }
971 usbvision_empty_framequeues(usbvision);
972
973 return 0;
974}
975
78b526a4 976static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
c5f48367
TM		 977 struct v4l2_fmtdesc *vfd)
978{
979 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
980 return -EINVAL;
981 }
982 vfd->flags = 0;
983 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
984 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
985 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
986 memset(vfd->reserved, 0, sizeof(vfd->reserved));
987 return 0;
988}
989
78b526a4 990static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
c5f48367
TM		 991 struct v4l2_format *vf)
992{
993 struct video_device *dev = video_devdata(file);
994 struct usb_usbvision *usbvision =
995 (struct usb_usbvision *) video_get_drvdata(dev);
996 vf->fmt.pix.width = usbvision->curwidth;
997 vf->fmt.pix.height = usbvision->curheight;
998 vf->fmt.pix.pixelformat = usbvision->palette.format;
999 vf->fmt.pix.bytesperline =
1000 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
1001 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
1002 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1003 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
1004
1005 return 0;
1006}
1007
78b526a4 1008static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
c5f48367
TM		 1009 struct v4l2_format *vf)
1010{
1011 struct video_device *dev = video_devdata(file);
1012 struct usb_usbvision *usbvision =
1013 (struct usb_usbvision *) video_get_drvdata(dev);
1014 int formatIdx;
1015
1016 /* Find requested format in available ones */
1017 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
1018 if(vf->fmt.pix.pixelformat ==
1019 usbvision_v4l2_format[formatIdx].format) {
1020 usbvision->palette = usbvision_v4l2_format[formatIdx];
1021 break;
1022 }
1023 }
1024 /* robustness */
1025 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
1026 return -EINVAL;
1027 }
1028 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
1029 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
1030
1031 vf->fmt.pix.bytesperline = vf->fmt.pix.width*
1032 usbvision->palette.bytes_per_pixel;
1033 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
1034
1035 return 0;
1036}
1037
78b526a4 1038static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
c5f48367
TM		 1039 struct v4l2_format *vf)
1040{
1041 struct video_device *dev = video_devdata(file);
1042 struct usb_usbvision *usbvision =
1043 (struct usb_usbvision *) video_get_drvdata(dev);
1044 int ret;
1045
78b526a4 1046 if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
c5f48367
TM		 1047 return ret;
1048 }
1049
1050 /* stop io in case it is already in progress */
1051 if(usbvision->streaming == Stream_On) {
1052 if ((ret = usbvision_stream_interrupt(usbvision)))
1053 return ret;
1054 }
1055 usbvision_frames_free(usbvision);
1056 usbvision_empty_framequeues(usbvision);
1057
1058 usbvision->curFrame = NULL;
1059
1060 /* by now we are committed to the new data... */
289d4d2f 1061 mutex_lock(&usbvision->lock);
c5f48367 1062 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
289d4d2f 1063 mutex_unlock(&usbvision->lock);
c5f48367
TM		 1064
1065 return 0;
1066}
483dfdb6 1067
8a5ab415 1068static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
483dfdb6
TM		 1069 size_t count, loff_t *ppos)
1070{
1071 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1072 struct usb_usbvision *usbvision =
1073 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1074 int noblock = file->f_flags & O_NONBLOCK;
1075 unsigned long lock_flags;
1076
483dfdb6
TM		 1077 int ret,i;
1078 struct usbvision_frame *frame;
1079
d2db42dd 1080 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
c5f48367 1081 (unsigned long)count, noblock);
483dfdb6
TM		 1082
1083 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1084 return -EFAULT;
1085
c5f48367
TM		 1086 /* This entry point is compatible with the mmap routines
1087 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1088 to get frames or call read on the device. */
6f78e186 1089 if(!usbvision->num_frames) {
c5f48367
TM		 1090 /* First, allocate some frames to work with
1091 if this has not been done with VIDIOC_REQBUF */
6f78e186
TM		 1092 usbvision_frames_free(usbvision);
1093 usbvision_empty_framequeues(usbvision);
1094 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1095 }
1096
1097 if(usbvision->streaming != Stream_On) {
1098 /* no stream is running, make it running ! */
1099 usbvision->streaming = Stream_On;
1100 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1101 }
483dfdb6 1102
c5f48367
TM		 1103 /* Then, enqueue as many frames as possible
1104 (like a user of VIDIOC_QBUF would do) */
6f78e186 1105 for(i=0;i<usbvision->num_frames;i++) {
483dfdb6
TM		 1106 frame = &usbvision->frame[i];
1107 if(frame->grabstate == FrameState_Unused) {
1108 /* Mark it as ready and enqueue frame */
1109 frame->grabstate = FrameState_Ready;
1110 frame->scanstate = ScanState_Scanning;
c5f48367
TM		 1111 /* Accumulated in usbvision_parse_data() */
1112 frame->scanlength = 0;
483dfdb6
TM		 1113
1114 /* set v4l2_format index */
1115 frame->v4l2_format = usbvision->palette;
1116
1117 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1118 list_add_tail(&frame->frame, &usbvision->inqueue);
c5f48367
TM		 1119 spin_unlock_irqrestore(&usbvision->queue_lock,
1120 lock_flags);
483dfdb6
TM		 1121 }
1122 }
1123
1124 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1125 if (list_empty(&(usbvision->outqueue))) {
1126 if(noblock)
1127 return -EAGAIN;
1128
1129 ret = wait_event_interruptible
1130 (usbvision->wait_frame,
1131 !list_empty(&(usbvision->outqueue)));
1132 if (ret)
1133 return ret;
1134 }
1135
1136 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1137 frame = list_entry(usbvision->outqueue.next,
1138 struct usbvision_frame, frame);
1139 list_del(usbvision->outqueue.next);
1140 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1141
1142 /* An error returns an empty frame */
1143 if (frame->grabstate == FrameState_Error) {
1144 frame->bytes_read = 0;
1145 return 0;
1146 }
1147
c5f48367 1148 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
d2db42dd 1149 __func__,
c5f48367 1150 frame->index, frame->bytes_read, frame->scanlength);
483dfdb6
TM		 1151
1152 /* copy bytes to user space; we allow for partials reads */
1153 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1154 count = frame->scanlength - frame->bytes_read;
1155
1156 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1157 return -EFAULT;
1158 }
1159
1160 frame->bytes_read += count;
c5f48367 1161 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
d2db42dd 1162 __func__,
c5f48367 1163 (unsigned long)count, frame->bytes_read);
483dfdb6 1164
c5f48367 1165 /* For now, forget the frame if it has not been read in one shot. */
483dfdb6
TM		 1166/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1167 frame->bytes_read = 0;
1168
1169 /* Mark it as available to be used again. */
c430ca1e 1170 frame->grabstate = FrameState_Unused;
483dfdb6
TM		 1171/* } */
1172
1173 return count;
1174}
1175
1176static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1177{
1178 unsigned long size = vma->vm_end - vma->vm_start,
1179 start = vma->vm_start;
1180 void *pos;
1181 u32 i;
1182
1183 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1184 struct usb_usbvision *usbvision =
1185 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 1186
6f78e186
TM		 1187 PDEBUG(DBG_MMAP, "mmap");
1188
289d4d2f 1189 mutex_lock(&usbvision->lock);
483dfdb6
TM		 1190
1191 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
289d4d2f 1192 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1193 return -EFAULT;
1194 }
1195
1196 if (!(vma->vm_flags & VM_WRITE) ||
6f78e186 1197 size != PAGE_ALIGN(usbvision->max_frame_size)) {
289d4d2f 1198 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1199 return -EINVAL;
1200 }
1201
6f78e186 1202 for (i = 0; i < usbvision->num_frames; i++) {
c5f48367
TM		 1203 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1204 vma->vm_pgoff)
483dfdb6
TM		 1205 break;
1206 }
6f78e186 1207 if (i == usbvision->num_frames) {
c5f48367
TM		 1208 PDEBUG(DBG_MMAP,
1209 "mmap: user supplied mapping address is out of range");
289d4d2f 1210 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1211 return -EINVAL;
1212 }
1213
1214 /* VM_IO is eventually going to replace PageReserved altogether */
1215 vma->vm_flags |= VM_IO;
1216 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1217
1218 pos = usbvision->frame[i].data;
1219 while (size > 0) {
1220
1221 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
c876a346 1222 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
289d4d2f 1223 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1224 return -EAGAIN;
1225 }
1226 start += PAGE_SIZE;
1227 pos += PAGE_SIZE;
1228 size -= PAGE_SIZE;
1229 }
1230
289d4d2f 1231 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1232 return 0;
1233}
1234
1235
1236/*
1237 * Here comes the stuff for radio on usbvision based devices
1238 *
1239 */
1240static int usbvision_radio_open(struct inode *inode, struct file *file)
1241{
1242 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1243 struct usb_usbvision *usbvision =
1244 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1245 int errCode = 0;
1246
d2db42dd 1247 PDEBUG(DBG_IO, "%s:", __func__);
483dfdb6 1248
289d4d2f 1249 mutex_lock(&usbvision->lock);
483dfdb6
TM		 1250
1251 if (usbvision->user) {
d2db42dd 1252 err("%s: Someone tried to open an already opened USBVision Radio!", __func__);
483dfdb6
TM		 1253 errCode = -EBUSY;
1254 }
1255 else {
1256 if(PowerOnAtOpen) {
1257 usbvision_reset_powerOffTimer(usbvision);
1258 if (usbvision->power == 0) {
1259 usbvision_power_on(usbvision);
1ff16c20 1260 usbvision_i2c_register(usbvision);
483dfdb6
TM		 1261 }
1262 }
1263
2a9f8b5d
TM		 1264 /* Alternate interface 1 is is the biggest frame size */
1265 errCode = usbvision_set_alternate(usbvision);
1266 if (errCode < 0) {
1267 usbvision->last_error = errCode;
544e6175
AM		 1268 errCode = -EBUSY;
1269 goto out;
2a9f8b5d
TM		 1270 }
1271
483dfdb6
TM		 1272 // If so far no errors then we shall start the radio
1273 usbvision->radio = 1;
1274 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
483dfdb6
TM		 1275 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1276 usbvision->user++;
1277 }
1278
1279 if (errCode) {
1280 if (PowerOnAtOpen) {
1ff16c20 1281 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 1282 usbvision_power_off(usbvision);
1283 usbvision->initialized = 0;
1284 }
1285 }
544e6175 1286out:
289d4d2f 1287 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1288 return errCode;
1289}
1290
1291
1292static int usbvision_radio_close(struct inode *inode, struct file *file)
1293{
1294 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1295 struct usb_usbvision *usbvision =
1296 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1297 int errCode = 0;
1298
1299 PDEBUG(DBG_IO, "");
1300
289d4d2f 1301 mutex_lock(&usbvision->lock);
483dfdb6 1302
2a9f8b5d
TM		 1303 /* Set packet size to 0 */
1304 usbvision->ifaceAlt=0;
1305 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1306 usbvision->ifaceAlt);
1307
483dfdb6
TM		 1308 usbvision_audio_off(usbvision);
1309 usbvision->radio=0;
1310 usbvision->user--;
1311
1312 if (PowerOnAtOpen) {
1313 usbvision_set_powerOffTimer(usbvision);
1314 usbvision->initialized = 0;
1315 }
1316
289d4d2f 1317 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1318
1319 if (usbvision->remove_pending) {
d2db42dd 1320 printk(KERN_INFO "%s: Final disconnect\n", __func__);
483dfdb6
TM		 1321 usbvision_release(usbvision);
1322 }
1323
483dfdb6 1324 PDEBUG(DBG_IO, "success");
483dfdb6
TM		 1325 return errCode;
1326}
1327
483dfdb6
TM		 1328/*
1329 * Here comes the stuff for vbi on usbvision based devices
1330 *
1331 */
1332static int usbvision_vbi_open(struct inode *inode, struct file *file)
1333{
1334 /* TODO */
c5f48367 1335 return -ENODEV;
483dfdb6
TM		 1336}
1337
1338static int usbvision_vbi_close(struct inode *inode, struct file *file)
1339{
1340 /* TODO */
c5f48367 1341 return -ENODEV;
483dfdb6
TM		 1342}
1343
1344static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1345 unsigned int cmd, void *arg)
1346{
1347 /* TODO */
c5f48367 1348 return -ENOIOCTLCMD;
483dfdb6
TM		 1349}
1350
1351static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1352 unsigned int cmd, unsigned long arg)
1353{
1354 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1355}
1356
1357
1358//
1359// Video registration stuff
1360//
1361
1362// Video template
fa027c2a 1363static const struct file_operations usbvision_fops = {
483dfdb6 1364 .owner = THIS_MODULE,
483dfdb6
TM		 1365 .open = usbvision_v4l2_open,
1366 .release = usbvision_v4l2_close,
1367 .read = usbvision_v4l2_read,
1368 .mmap = usbvision_v4l2_mmap,
c5f48367 1369 .ioctl = video_ioctl2,
483dfdb6 1370 .llseek = no_llseek,
c5f48367 1371/* .poll = video_poll, */
c5f48367 1372 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6 1373};
a399810c
HV		 1374
1375static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
c5f48367 1376 .vidioc_querycap = vidioc_querycap,
78b526a4
HV		 1377 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1378 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1379 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1380 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
c5f48367
TM		 1381 .vidioc_reqbufs = vidioc_reqbufs,
1382 .vidioc_querybuf = vidioc_querybuf,
1383 .vidioc_qbuf = vidioc_qbuf,
1384 .vidioc_dqbuf = vidioc_dqbuf,
1385 .vidioc_s_std = vidioc_s_std,
1386 .vidioc_enum_input = vidioc_enum_input,
1387 .vidioc_g_input = vidioc_g_input,
1388 .vidioc_s_input = vidioc_s_input,
1389 .vidioc_queryctrl = vidioc_queryctrl,
1390 .vidioc_g_audio = vidioc_g_audio,
ed4d6375 1391 .vidioc_s_audio = vidioc_s_audio,
c5f48367
TM		 1392 .vidioc_g_ctrl = vidioc_g_ctrl,
1393 .vidioc_s_ctrl = vidioc_s_ctrl,
1394 .vidioc_streamon = vidioc_streamon,
1395 .vidioc_streamoff = vidioc_streamoff,
1396#ifdef CONFIG_VIDEO_V4L1_COMPAT
1397/* .vidiocgmbuf = vidiocgmbuf, */
1398#endif
1399 .vidioc_g_tuner = vidioc_g_tuner,
1400 .vidioc_s_tuner = vidioc_s_tuner,
1401 .vidioc_g_frequency = vidioc_g_frequency,
1402 .vidioc_s_frequency = vidioc_s_frequency,
1403#ifdef CONFIG_VIDEO_ADV_DEBUG
1404 .vidioc_g_register = vidioc_g_register,
1405 .vidioc_s_register = vidioc_s_register,
1406#endif
a399810c
HV		 1407};
1408
1409static struct video_device usbvision_video_template = {
a399810c
HV		 1410 .fops = &usbvision_fops,
1411 .ioctl_ops = &usbvision_ioctl_ops,
1412 .name = "usbvision-video",
1413 .release = video_device_release,
1414 .minor = -1,
c5f48367
TM		 1415 .tvnorms = USBVISION_NORMS,
1416 .current_norm = V4L2_STD_PAL
483dfdb6
TM		 1417};
1418
1419
1420// Radio template
fa027c2a 1421static const struct file_operations usbvision_radio_fops = {
483dfdb6 1422 .owner = THIS_MODULE,
483dfdb6
TM		 1423 .open = usbvision_radio_open,
1424 .release = usbvision_radio_close,
c5f48367 1425 .ioctl = video_ioctl2,
483dfdb6 1426 .llseek = no_llseek,
c5f48367 1427 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6
TM		 1428};
1429
a399810c 1430static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = {
c5f48367
TM		 1431 .vidioc_querycap = vidioc_querycap,
1432 .vidioc_enum_input = vidioc_enum_input,
1433 .vidioc_g_input = vidioc_g_input,
1434 .vidioc_s_input = vidioc_s_input,
1435 .vidioc_queryctrl = vidioc_queryctrl,
1436 .vidioc_g_audio = vidioc_g_audio,
ed4d6375 1437 .vidioc_s_audio = vidioc_s_audio,
c5f48367
TM		 1438 .vidioc_g_ctrl = vidioc_g_ctrl,
1439 .vidioc_s_ctrl = vidioc_s_ctrl,
1440 .vidioc_g_tuner = vidioc_g_tuner,
1441 .vidioc_s_tuner = vidioc_s_tuner,
1442 .vidioc_g_frequency = vidioc_g_frequency,
1443 .vidioc_s_frequency = vidioc_s_frequency,
a399810c
HV		 1444};
1445
1446static struct video_device usbvision_radio_template = {
a399810c
HV		 1447 .fops = &usbvision_radio_fops,
1448 .name = "usbvision-radio",
1449 .release = video_device_release,
1450 .minor = -1,
1451 .ioctl_ops = &usbvision_radio_ioctl_ops,
c5f48367
TM		 1452
1453 .tvnorms = USBVISION_NORMS,
1454 .current_norm = V4L2_STD_PAL
483dfdb6
TM		 1455};
1456
483dfdb6 1457// vbi template
fa027c2a 1458static const struct file_operations usbvision_vbi_fops = {
483dfdb6 1459 .owner = THIS_MODULE,
483dfdb6
TM		 1460 .open = usbvision_vbi_open,
1461 .release = usbvision_vbi_close,
1462 .ioctl = usbvision_vbi_ioctl,
1463 .llseek = no_llseek,
c5f48367 1464 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6
TM		 1465};
1466
1467static struct video_device usbvision_vbi_template=
1468{
483dfdb6 1469 .fops = &usbvision_vbi_fops,
483dfdb6
TM		 1470 .release = video_device_release,
1471 .name = "usbvision-vbi",
483dfdb6
TM		 1472 .minor = -1,
1473};
1474
1475
1476static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1477 struct video_device *vdev_template,
1478 char *name)
1479{
1480 struct usb_device *usb_dev = usbvision->dev;
1481 struct video_device *vdev;
1482
1483 if (usb_dev == NULL) {
d2db42dd 1484 err("%s: usbvision->dev is not set", __func__);
483dfdb6
TM		 1485 return NULL;
1486 }
1487
1488 vdev = video_device_alloc();
1489 if (NULL == vdev) {
1490 return NULL;
1491 }
1492 *vdev = *vdev_template;
1493// vdev->minor = -1;
5e85e732 1494 vdev->parent = &usb_dev->dev;
483dfdb6
TM		 1495 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1496 video_set_drvdata(vdev, usbvision);
1497 return vdev;
1498}
1499
1500// unregister video4linux devices
1501static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1502{
1503 // vbi Device:
1504 if (usbvision->vbi) {
c5f48367
TM		 1505 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1506 usbvision->vbi->minor & 0x1f);
483dfdb6
TM		 1507 if (usbvision->vbi->minor != -1) {
1508 video_unregister_device(usbvision->vbi);
c5f48367 1509 } else {
483dfdb6
TM		 1510 video_device_release(usbvision->vbi);
1511 }
1512 usbvision->vbi = NULL;
1513 }
1514
1515 // Radio Device:
1516 if (usbvision->rdev) {
c5f48367
TM		 1517 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1518 usbvision->rdev->minor & 0x1f);
483dfdb6
TM		 1519 if (usbvision->rdev->minor != -1) {
1520 video_unregister_device(usbvision->rdev);
c5f48367 1521 } else {
483dfdb6
TM		 1522 video_device_release(usbvision->rdev);
1523 }
1524 usbvision->rdev = NULL;
1525 }
1526
1527 // Video Device:
1528 if (usbvision->vdev) {
c5f48367
TM		 1529 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1530 usbvision->vdev->minor & 0x1f);
483dfdb6
TM		 1531 if (usbvision->vdev->minor != -1) {
1532 video_unregister_device(usbvision->vdev);
c5f48367 1533 } else {
483dfdb6
TM		 1534 video_device_release(usbvision->vdev);
1535 }
1536 usbvision->vdev = NULL;
1537 }
1538}
1539
1540// register video4linux devices
1541static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1542{
1543 // Video Device:
c5f48367
TM		 1544 usbvision->vdev = usbvision_vdev_init(usbvision,
1545 &usbvision_video_template,
1546 "USBVision Video");
483dfdb6
TM		 1547 if (usbvision->vdev == NULL) {
1548 goto err_exit;
1549 }
c5f48367
TM		 1550 if (video_register_device(usbvision->vdev,
1551 VFL_TYPE_GRABBER,
1552 video_nr)<0) {
483dfdb6
TM		 1553 goto err_exit;
1554 }
c5f48367
TM		 1555 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1556 usbvision->nr,usbvision->vdev->minor & 0x1f);
483dfdb6
TM		 1557
1558 // Radio Device:
1559 if (usbvision_device_data[usbvision->DevModel].Radio) {
1560 // usbvision has radio
c5f48367
TM		 1561 usbvision->rdev = usbvision_vdev_init(usbvision,
1562 &usbvision_radio_template,
1563 "USBVision Radio");
483dfdb6
TM		 1564 if (usbvision->rdev == NULL) {
1565 goto err_exit;
1566 }
c5f48367
TM		 1567 if (video_register_device(usbvision->rdev,
1568 VFL_TYPE_RADIO,
1569 radio_nr)<0) {
483dfdb6
TM		 1570 goto err_exit;
1571 }
c5f48367
TM		 1572 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1573 usbvision->nr, usbvision->rdev->minor & 0x1f);
483dfdb6
TM		 1574 }
1575 // vbi Device:
1576 if (usbvision_device_data[usbvision->DevModel].vbi) {
c5f48367
TM		 1577 usbvision->vbi = usbvision_vdev_init(usbvision,
1578 &usbvision_vbi_template,
1579 "USBVision VBI");
483dfdb6
TM		 1580 if (usbvision->vdev == NULL) {
1581 goto err_exit;
1582 }
c5f48367
TM		 1583 if (video_register_device(usbvision->vbi,
1584 VFL_TYPE_VBI,
1585 vbi_nr)<0) {
483dfdb6
TM		 1586 goto err_exit;
1587 }
c5f48367
TM		 1588 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1589 usbvision->nr,usbvision->vbi->minor & 0x1f);
483dfdb6
TM		 1590 }
1591 // all done
1592 return 0;
1593
1594 err_exit:
1595 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1596 usbvision_unregister_video(usbvision);
1597 return -1;
1598}
1599
1600/*
1601 * usbvision_alloc()
1602 *
c5f48367
TM		 1603 * This code allocates the struct usb_usbvision.
1604 * It is filled with default values.
483dfdb6
TM		 1605 *
1606 * Returns NULL on error, a pointer to usb_usbvision else.
1607 *
1608 */
1609static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1610{
1611 struct usb_usbvision *usbvision;
1612
c5f48367
TM		 1613 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1614 NULL) {
483dfdb6
TM		 1615 goto err_exit;
1616 }
1617
1618 usbvision->dev = dev;
1619
289d4d2f 1620 mutex_init(&usbvision->lock); /* available */
483dfdb6
TM		 1621
1622 // prepare control urb for control messages during interrupts
1623 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1624 if (usbvision->ctrlUrb == NULL) {
1625 goto err_exit;
1626 }
1627 init_waitqueue_head(&usbvision->ctrlUrb_wq);
483dfdb6
TM		 1628
1629 usbvision_init_powerOffTimer(usbvision);
1630
1631 return usbvision;
1632
1633err_exit:
1634 if (usbvision && usbvision->ctrlUrb) {
1635 usb_free_urb(usbvision->ctrlUrb);
1636 }
1637 if (usbvision) {
1638 kfree(usbvision);
1639 }
1640 return NULL;
1641}
1642
1643/*
1644 * usbvision_release()
1645 *
1646 * This code does final release of struct usb_usbvision. This happens
1647 * after the device is disconnected -and- all clients closed their files.
1648 *
1649 */
1650static void usbvision_release(struct usb_usbvision *usbvision)
1651{
1652 PDEBUG(DBG_PROBE, "");
1653
289d4d2f 1654 mutex_lock(&usbvision->lock);
483dfdb6
TM		 1655
1656 usbvision_reset_powerOffTimer(usbvision);
1657
1658 usbvision->initialized = 0;
1659
289d4d2f 1660 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1661
1662 usbvision_remove_sysfs(usbvision->vdev);
1663 usbvision_unregister_video(usbvision);
1664
1665 if (usbvision->ctrlUrb) {
1666 usb_free_urb(usbvision->ctrlUrb);
1667 }
1668
1669 kfree(usbvision);
1670
1671 PDEBUG(DBG_PROBE, "success");
1672}
1673
1674
c5f48367 1675/*********************** usb interface **********************************/
483dfdb6
TM		 1676
1677static void usbvision_configure_video(struct usb_usbvision *usbvision)
1678{
c5f48367 1679 int model;
483dfdb6
TM		 1680
1681 if (usbvision == NULL)
1682 return;
1683
1684 model = usbvision->DevModel;
1685 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1686
c682b3a7 1687 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
c5f48367
TM		 1688 usbvision->Vin_Reg2_Preset =
1689 usbvision_device_data[usbvision->DevModel].Vin_Reg2;
483dfdb6
TM		 1690 } else {
1691 usbvision->Vin_Reg2_Preset = 0;
1692 }
1693
c5f48367 1694 usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
483dfdb6
TM		 1695
1696 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1697 usbvision->ctl_input = 0;
1698
1699 /* This should be here to make i2c clients to be able to register */
c5f48367
TM		 1700 /* first switch off audio */
1701 usbvision_audio_off(usbvision);
483dfdb6 1702 if (!PowerOnAtOpen) {
c5f48367
TM		 1703 /* and then power up the noisy tuner */
1704 usbvision_power_on(usbvision);
1ff16c20 1705 usbvision_i2c_register(usbvision);
483dfdb6
TM		 1706 }
1707}
1708
1709/*
1710 * usbvision_probe()
1711 *
1712 * This procedure queries device descriptor and accepts the interface
1713 * if it looks like USBVISION video device
1714 *
1715 */
659ae56d
MCC		 1716static int __devinit usbvision_probe(struct usb_interface *intf,
1717 const struct usb_device_id *devid)
483dfdb6 1718{
2a9f8b5d
TM		 1719 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1720 struct usb_interface *uif;
483dfdb6
TM		 1721 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1722 const struct usb_host_interface *interface;
1723 struct usb_usbvision *usbvision = NULL;
1724 const struct usb_endpoint_descriptor *endpoint;
2a9f8b5d 1725 int model,i;
483dfdb6
TM		 1726
1727 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
659ae56d
MCC		 1728 dev->descriptor.idVendor,
1729 dev->descriptor.idProduct, ifnum);
2a9f8b5d 1730
659ae56d 1731 model = devid->driver_info;
f8a389db 1732 if ( (model<0) || (model>=usbvision_device_data_size) ) {
672d013b 1733 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
f8a389db
MCC		 1734 return -ENODEV;
1735 }
d2db42dd 1736 printk(KERN_INFO "%s: %s found\n", __func__,
659ae56d 1737 usbvision_device_data[model].ModelString);
483dfdb6 1738
483dfdb6
TM		 1739 if (usbvision_device_data[model].Interface >= 0) {
1740 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
c5f48367 1741 } else {
483dfdb6
TM		 1742 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1743 }
1744 endpoint = &interface->endpoint[1].desc;
c5f48367
TM		 1745 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1746 USB_ENDPOINT_XFER_ISOC) {
1747 err("%s: interface %d. has non-ISO endpoint!",
d2db42dd 1748 __func__, ifnum);
c5f48367 1749 err("%s: Endpoint attributes %d",
d2db42dd 1750 __func__, endpoint->bmAttributes);
483dfdb6
TM		 1751 return -ENODEV;
1752 }
c5f48367
TM		 1753 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1754 USB_DIR_OUT) {
1755 err("%s: interface %d. has ISO OUT endpoint!",
d2db42dd 1756 __func__, ifnum);
483dfdb6
TM		 1757 return -ENODEV;
1758 }
1759
483dfdb6 1760 if ((usbvision = usbvision_alloc(dev)) == NULL) {
d2db42dd 1761 err("%s: couldn't allocate USBVision struct", __func__);
483dfdb6
TM		 1762 return -ENOMEM;
1763 }
659ae56d 1764
483dfdb6
TM		 1765 if (dev->descriptor.bNumConfigurations > 1) {
1766 usbvision->bridgeType = BRIDGE_NT1004;
c5f48367 1767 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
483dfdb6 1768 usbvision->bridgeType = BRIDGE_NT1005;
c5f48367 1769 } else {
483dfdb6
TM		 1770 usbvision->bridgeType = BRIDGE_NT1003;
1771 }
1772 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1773
289d4d2f 1774 mutex_lock(&usbvision->lock);
483dfdb6 1775
2a9f8b5d
TM		 1776 /* compute alternate max packet sizes */
1777 uif = dev->actconfig->interface[0];
1778
1779 usbvision->num_alt=uif->num_altsetting;
1780 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1781 usbvision->alt_max_pkt_size = kmalloc(32*
1782 usbvision->num_alt,GFP_KERNEL);
1783 if (usbvision->alt_max_pkt_size == NULL) {
1784 err("usbvision: out of memory!\n");
0991112c 1785 mutex_unlock(&usbvision->lock);
2a9f8b5d
TM		 1786 return -ENOMEM;
1787 }
1788
1789 for (i = 0; i < usbvision->num_alt ; i++) {
1790 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1791 wMaxPacketSize);
1792 usbvision->alt_max_pkt_size[i] =
1793 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1794 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1795 usbvision->alt_max_pkt_size[i]);
1796 }
1797
1798
483dfdb6
TM		 1799 usbvision->nr = usbvision_nr++;
1800
1801 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1802 if (usbvision->have_tuner) {
1803 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1804 }
1805
1806 usbvision->tuner_addr = ADDR_UNSET;
1807
1808 usbvision->DevModel = model;
1809 usbvision->remove_pending = 0;
1810 usbvision->iface = ifnum;
2a9f8b5d 1811 usbvision->ifaceAlt = 0;
483dfdb6
TM		 1812 usbvision->video_endp = endpoint->bEndpointAddress;
1813 usbvision->isocPacketSize = 0;
1814 usbvision->usb_bandwidth = 0;
1815 usbvision->user = 0;
1816 usbvision->streaming = Stream_Off;
1817 usbvision_register_video(usbvision);
1818 usbvision_configure_video(usbvision);
289d4d2f 1819 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1820
1821
1822 usb_set_intfdata (intf, usbvision);
1823 usbvision_create_sysfs(usbvision->vdev);
1824
1825 PDEBUG(DBG_PROBE, "success");
1826 return 0;
1827}
1828
1829
1830/*
1831 * usbvision_disconnect()
1832 *
1833 * This procedure stops all driver activity, deallocates interface-private
1834 * structure (pointed by 'ptr') and after that driver should be removable
1835 * with no ill consequences.
1836 *
1837 */
1838static void __devexit usbvision_disconnect(struct usb_interface *intf)
1839{
1840 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1841
1842 PDEBUG(DBG_PROBE, "");
1843
1844 if (usbvision == NULL) {
d2db42dd 1845 err("%s: usb_get_intfdata() failed", __func__);
483dfdb6
TM		 1846 return;
1847 }
1848 usb_set_intfdata (intf, NULL);
1849
289d4d2f 1850 mutex_lock(&usbvision->lock);
483dfdb6
TM		 1851
1852 // At this time we ask to cancel outstanding URBs
1853 usbvision_stop_isoc(usbvision);
1854
1855 if (usbvision->power) {
1ff16c20 1856 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 1857 usbvision_power_off(usbvision);
1858 }
1859 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1860
1861 usb_put_dev(usbvision->dev);
1862 usbvision->dev = NULL; // USB device is no more
1863
289d4d2f 1864 mutex_unlock(&usbvision->lock);
483dfdb6
TM		 1865
1866 if (usbvision->user) {
c5f48367 1867 printk(KERN_INFO "%s: In use, disconnect pending\n",
d2db42dd 1868 __func__);
483dfdb6
TM		 1869 wake_up_interruptible(&usbvision->wait_frame);
1870 wake_up_interruptible(&usbvision->wait_stream);
c5f48367 1871 } else {
483dfdb6
TM		 1872 usbvision_release(usbvision);
1873 }
1874
1875 PDEBUG(DBG_PROBE, "success");
483dfdb6
TM		 1876}
1877
1878static struct usb_driver usbvision_driver = {
1879 .name = "usbvision",
1880 .id_table = usbvision_table,
1881 .probe = usbvision_probe,
1882 .disconnect = usbvision_disconnect
1883};
1884
483dfdb6
TM		 1885/*
1886 * usbvision_init()
1887 *
1888 * This code is run to initialize the driver.
1889 *
1890 */
1891static int __init usbvision_init(void)
1892{
1893 int errCode;
1894
1895 PDEBUG(DBG_PROBE, "");
1896
483dfdb6
TM		 1897 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
1898 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
c876a346 1899 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
483dfdb6
TM		 1900
1901 /* disable planar mode support unless compression enabled */
1902 if (isocMode != ISOC_MODE_COMPRESS ) {
1903 // FIXME : not the right way to set supported flag
1904 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1905 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1906 }
1907
483dfdb6
TM		 1908 errCode = usb_register(&usbvision_driver);
1909
1910 if (errCode == 0) {
de6a1b8e 1911 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
483dfdb6
TM		 1912 PDEBUG(DBG_PROBE, "success");
1913 }
1914 return errCode;
1915}
1916
1917static void __exit usbvision_exit(void)
1918{
1919 PDEBUG(DBG_PROBE, "");
1920
1921 usb_deregister(&usbvision_driver);
1922 PDEBUG(DBG_PROBE, "success");
1923}
1924
1925module_init(usbvision_init);
1926module_exit(usbvision_exit);
1927
1928/*
1929 * Overrides for Emacs so that we follow Linus's tabbing style.
1930 * ---------------------------------------------------------------------------
1931 * Local variables:
1932 * c-basic-offset: 8
1933 * End:
1934 */
Linux 6.x block layer and io_uring tree(s)