V4L/DVB (9165): ivtv: V4L2_FBUF_FLAG_OVERLAY status fix
[linux-2.6] / drivers / media / video / usbvision / usbvision-video.c
1 /*
2  * USB USBVISION Video device driver 0.9.9
3  *
4  *
5  *
6  * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
7  *
8  * This module is part of usbvision driver project.
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23  *
24  * Let's call the version 0.... until compression decoding is completely
25  * implemented.
26  *
27  * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach.
28  * It was based on USB CPiA driver written by Peter Pregler,
29  * Scott J. Bertin and Johannes Erdfelt
30  * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler &
31  * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink
32  * Updates to driver completed by Dwaine P. Garden
33  *
34  *
35  * TODO:
36  *     - use submit_urb for all setup packets
37  *     - Fix memory settings for nt1004. It is 4 times as big as the
38  *       nt1003 memory.
39  *     - Add audio on endpoint 3 for nt1004 chip.
40  *         Seems impossible, needs a codec interface.  Which one?
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
48 #include <linux/version.h>
49 #include <linux/kernel.h>
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>
56 #include <linux/vmalloc.h>
57 #include <linux/module.h>
58 #include <linux/init.h>
59 #include <linux/spinlock.h>
60 #include <asm/io.h>
61 #include <linux/videodev2.h>
62 #include <linux/video_decoder.h>
63 #include <linux/i2c.h>
64
65 #include <media/saa7115.h>
66 #include <media/v4l2-common.h>
67 #include <media/v4l2-ioctl.h>
68 #include <media/tuner.h>
69
70 #include <linux/workqueue.h>
71
72 #ifdef CONFIG_KMOD
73 #include <linux/kmod.h>
74 #endif
75
76 #include "usbvision.h"
77 #include "usbvision-cards.h"
78
79 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
80  Dwaine Garden <DwaineGarden@rogers.com>"
81 #define DRIVER_NAME "usbvision"
82 #define DRIVER_ALIAS "USBVision"
83 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
84 #define DRIVER_LICENSE "GPL"
85 #define USBVISION_DRIVER_VERSION_MAJOR 0
86 #define USBVISION_DRIVER_VERSION_MINOR 9
87 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
88 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
89 USBVISION_DRIVER_VERSION_MINOR,\
90 USBVISION_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)
94
95 #define ENABLE_HEXDUMP  0       /* Enable if you need it */
96
97
98 #ifdef USBVISION_DEBUG
99         #define PDEBUG(level, fmt, args...) { \
100                 if (video_debug & (level)) \
101                         printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \
102                                 __func__, __LINE__ , ## args); \
103         }
104 #else
105         #define PDEBUG(level, fmt, args...) do {} while(0)
106 #endif
107
108 #define DBG_IO          1<<1
109 #define DBG_PROBE       1<<2
110 #define DBG_MMAP        1<<3
111
112 //String operations
113 #define rmspace(str)    while(*str==' ') str++;
114 #define goto2next(str)  while(*str!=' ') str++; while(*str==' ') str++;
115
116
117 /* sequential number of usbvision device */
118 static int usbvision_nr;
119
120 static 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
131 /* Function prototypes */
132 static void usbvision_release(struct usb_usbvision *usbvision);
133
134 /* Default initialization of device driver parameters */
135 /* Set the default format for ISOC endpoint */
136 static int isocMode = ISOC_MODE_COMPRESS;
137 /* Set the default Debug Mode of the device driver */
138 static int video_debug;
139 /* Set the default device to power on at startup */
140 static int PowerOnAtOpen = 1;
141 /* Sequential Number of Video Device */
142 static int video_nr = -1;
143 /* Sequential Number of Radio Device */
144 static int radio_nr = -1;
145 /* Sequential Number of VBI Device */
146 static int vbi_nr = -1;
147
148 /* Grab parameters for the device driver */
149
150 /* Showing parameters under SYSFS */
151 module_param(isocMode, int, 0444);
152 module_param(video_debug, int, 0444);
153 module_param(PowerOnAtOpen, int, 0444);
154 module_param(video_nr, int, 0444);
155 module_param(radio_nr, int, 0444);
156 module_param(vbi_nr, int, 0444);
157
158 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint.  Default: 0x60 (Compression On)");
159 MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver.  Default: 0 (Off)");
160 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened.  Default: 1 (On)");
161 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX).  Default: -1 (autodetect)");
162 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX).  Default: -1 (autodetect)");
163 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX).  Default: -1 (autodetect)");
164
165
166 // Misc stuff
167 MODULE_AUTHOR(DRIVER_AUTHOR);
168 MODULE_DESCRIPTION(DRIVER_DESC);
169 MODULE_LICENSE(DRIVER_LICENSE);
170 MODULE_VERSION(USBVISION_VERSION_STRING);
171 MODULE_ALIAS(DRIVER_ALIAS);
172
173
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 /*****************************************************************************/
181
182 #define YES_NO(x) ((x) ? "Yes" : "No")
183
184 static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
185 {
186         struct video_device *vdev =
187                 container_of(cd, struct video_device, dev);
188         return video_get_drvdata(vdev);
189 }
190
191 static ssize_t show_version(struct device *cd,
192                             struct device_attribute *attr, char *buf)
193 {
194         return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
195 }
196 static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
197
198 static ssize_t show_model(struct device *cd,
199                           struct device_attribute *attr, char *buf)
200 {
201         struct video_device *vdev =
202                 container_of(cd, struct video_device, dev);
203         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
204         return sprintf(buf, "%s\n",
205                        usbvision_device_data[usbvision->DevModel].ModelString);
206 }
207 static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
208
209 static ssize_t show_hue(struct device *cd,
210                         struct device_attribute *attr, char *buf)
211 {
212         struct video_device *vdev =
213                 container_of(cd, struct video_device, dev);
214         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
215         struct v4l2_control ctrl;
216         ctrl.id = V4L2_CID_HUE;
217         ctrl.value = 0;
218         if(usbvision->user)
219                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
220         return sprintf(buf, "%d\n", ctrl.value);
221 }
222 static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
223
224 static ssize_t show_contrast(struct device *cd,
225                              struct device_attribute *attr, char *buf)
226 {
227         struct video_device *vdev =
228                 container_of(cd, struct video_device, dev);
229         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
230         struct v4l2_control ctrl;
231         ctrl.id = V4L2_CID_CONTRAST;
232         ctrl.value = 0;
233         if(usbvision->user)
234                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
235         return sprintf(buf, "%d\n", ctrl.value);
236 }
237 static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
238
239 static ssize_t show_brightness(struct device *cd,
240                                struct device_attribute *attr, char *buf)
241 {
242         struct video_device *vdev =
243                 container_of(cd, struct video_device, dev);
244         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
245         struct v4l2_control ctrl;
246         ctrl.id = V4L2_CID_BRIGHTNESS;
247         ctrl.value = 0;
248         if(usbvision->user)
249                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
250         return sprintf(buf, "%d\n", ctrl.value);
251 }
252 static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
253
254 static ssize_t show_saturation(struct device *cd,
255                                struct device_attribute *attr, char *buf)
256 {
257         struct video_device *vdev =
258                 container_of(cd, struct video_device, dev);
259         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
260         struct v4l2_control ctrl;
261         ctrl.id = V4L2_CID_SATURATION;
262         ctrl.value = 0;
263         if(usbvision->user)
264                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
265         return sprintf(buf, "%d\n", ctrl.value);
266 }
267 static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
268
269 static ssize_t show_streaming(struct device *cd,
270                               struct device_attribute *attr, char *buf)
271 {
272         struct video_device *vdev =
273                 container_of(cd, struct video_device, dev);
274         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
275         return sprintf(buf, "%s\n",
276                        YES_NO(usbvision->streaming==Stream_On?1:0));
277 }
278 static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
279
280 static ssize_t show_compression(struct device *cd,
281                                 struct device_attribute *attr, char *buf)
282 {
283         struct video_device *vdev =
284                 container_of(cd, struct video_device, dev);
285         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
286         return sprintf(buf, "%s\n",
287                        YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
288 }
289 static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
290
291 static ssize_t show_device_bridge(struct device *cd,
292                                   struct device_attribute *attr, char *buf)
293 {
294         struct video_device *vdev =
295                 container_of(cd, struct video_device, dev);
296         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
297         return sprintf(buf, "%d\n", usbvision->bridgeType);
298 }
299 static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
300
301 static void usbvision_create_sysfs(struct video_device *vdev)
302 {
303         int res;
304         if (!vdev)
305                 return;
306         do {
307                 res = device_create_file(&vdev->dev, &dev_attr_version);
308                 if (res<0)
309                         break;
310                 res = device_create_file(&vdev->dev, &dev_attr_model);
311                 if (res<0)
312                         break;
313                 res = device_create_file(&vdev->dev, &dev_attr_hue);
314                 if (res<0)
315                         break;
316                 res = device_create_file(&vdev->dev, &dev_attr_contrast);
317                 if (res<0)
318                         break;
319                 res = device_create_file(&vdev->dev, &dev_attr_brightness);
320                 if (res<0)
321                         break;
322                 res = device_create_file(&vdev->dev, &dev_attr_saturation);
323                 if (res<0)
324                         break;
325                 res = device_create_file(&vdev->dev, &dev_attr_streaming);
326                 if (res<0)
327                         break;
328                 res = device_create_file(&vdev->dev, &dev_attr_compression);
329                 if (res<0)
330                         break;
331                 res = device_create_file(&vdev->dev, &dev_attr_bridge);
332                 if (res>=0)
333                         return;
334         } while (0);
335
336         err("%s error: %d\n", __func__, res);
337 }
338
339 static void usbvision_remove_sysfs(struct video_device *vdev)
340 {
341         if (vdev) {
342                 device_remove_file(&vdev->dev, &dev_attr_version);
343                 device_remove_file(&vdev->dev, &dev_attr_model);
344                 device_remove_file(&vdev->dev, &dev_attr_hue);
345                 device_remove_file(&vdev->dev, &dev_attr_contrast);
346                 device_remove_file(&vdev->dev, &dev_attr_brightness);
347                 device_remove_file(&vdev->dev, &dev_attr_saturation);
348                 device_remove_file(&vdev->dev, &dev_attr_streaming);
349                 device_remove_file(&vdev->dev, &dev_attr_compression);
350                 device_remove_file(&vdev->dev, &dev_attr_bridge);
351         }
352 }
353
354 /*
355  * usbvision_open()
356  *
357  * This is part of Video 4 Linux API. The driver can be opened by one
358  * client only (checks internal counter 'usbvision->user'). The procedure
359  * then allocates buffers needed for video processing.
360  *
361  */
362 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
363 {
364         struct usb_usbvision *usbvision = video_drvdata(file);
365         int errCode = 0;
366
367         PDEBUG(DBG_IO, "open");
368
369         lock_kernel();
370         usbvision_reset_powerOffTimer(usbvision);
371
372         if (usbvision->user)
373                 errCode = -EBUSY;
374         else {
375                 /* Allocate memory for the scratch ring buffer */
376                 errCode = usbvision_scratch_alloc(usbvision);
377                 if (isocMode==ISOC_MODE_COMPRESS) {
378                         /* Allocate intermediate decompression buffers
379                            only if needed */
380                         errCode = usbvision_decompress_alloc(usbvision);
381                 }
382                 if (errCode) {
383                         /* Deallocate all buffers if trouble */
384                         usbvision_scratch_free(usbvision);
385                         usbvision_decompress_free(usbvision);
386                 }
387         }
388
389         /* If so far no errors then we shall start the camera */
390         if (!errCode) {
391                 mutex_lock(&usbvision->lock);
392                 if (usbvision->power == 0) {
393                         usbvision_power_on(usbvision);
394                         usbvision_i2c_register(usbvision);
395                 }
396
397                 /* Send init sequence only once, it's large! */
398                 if (!usbvision->initialized) {
399                         int setup_ok = 0;
400                         setup_ok = usbvision_setup(usbvision,isocMode);
401                         if (setup_ok)
402                                 usbvision->initialized = 1;
403                         else
404                                 errCode = -EBUSY;
405                 }
406
407                 if (!errCode) {
408                         usbvision_begin_streaming(usbvision);
409                         errCode = usbvision_init_isoc(usbvision);
410                         /* device must be initialized before isoc transfer */
411                         usbvision_muxsel(usbvision,0);
412                         usbvision->user++;
413                 } else {
414                         if (PowerOnAtOpen) {
415                                 usbvision_i2c_unregister(usbvision);
416                                 usbvision_power_off(usbvision);
417                                 usbvision->initialized = 0;
418                         }
419                 }
420                 mutex_unlock(&usbvision->lock);
421         }
422
423         /* prepare queues */
424         usbvision_empty_framequeues(usbvision);
425
426         PDEBUG(DBG_IO, "success");
427         unlock_kernel();
428         return errCode;
429 }
430
431 /*
432  * usbvision_v4l2_close()
433  *
434  * This is part of Video 4 Linux API. The procedure
435  * stops streaming and deallocates all buffers that were earlier
436  * allocated in usbvision_v4l2_open().
437  *
438  */
439 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
440 {
441         struct usb_usbvision *usbvision = video_drvdata(file);
442
443         PDEBUG(DBG_IO, "close");
444         mutex_lock(&usbvision->lock);
445
446         usbvision_audio_off(usbvision);
447         usbvision_restart_isoc(usbvision);
448         usbvision_stop_isoc(usbvision);
449
450         usbvision_decompress_free(usbvision);
451         usbvision_frames_free(usbvision);
452         usbvision_empty_framequeues(usbvision);
453         usbvision_scratch_free(usbvision);
454
455         usbvision->user--;
456
457         if (PowerOnAtOpen) {
458                 /* power off in a little while
459                    to avoid off/on every close/open short sequences */
460                 usbvision_set_powerOffTimer(usbvision);
461                 usbvision->initialized = 0;
462         }
463
464         mutex_unlock(&usbvision->lock);
465
466         if (usbvision->remove_pending) {
467                 printk(KERN_INFO "%s: Final disconnect\n", __func__);
468                 usbvision_release(usbvision);
469         }
470
471         PDEBUG(DBG_IO, "success");
472         return 0;
473 }
474
475
476 /*
477  * usbvision_ioctl()
478  *
479  * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
480  *
481  */
482 #ifdef CONFIG_VIDEO_ADV_DEBUG
483 static int vidioc_g_register (struct file *file, void *priv,
484                                 struct v4l2_register *reg)
485 {
486         struct usb_usbvision *usbvision = video_drvdata(file);
487         int errCode;
488
489         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
490                 return -EINVAL;
491         /* NT100x has a 8-bit register space */
492         errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
493         if (errCode < 0) {
494                 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
495                     __func__, errCode);
496                 return errCode;
497         }
498         reg->val = errCode;
499         return 0;
500 }
501
502 static int vidioc_s_register (struct file *file, void *priv,
503                                 struct v4l2_register *reg)
504 {
505         struct usb_usbvision *usbvision = video_drvdata(file);
506         int errCode;
507
508         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
509                 return -EINVAL;
510         /* NT100x has a 8-bit register space */
511         errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
512         if (errCode < 0) {
513                 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
514                     __func__, errCode);
515                 return errCode;
516         }
517         return 0;
518 }
519 #endif
520
521 static int vidioc_querycap (struct file *file, void  *priv,
522                                         struct v4l2_capability *vc)
523 {
524         struct usb_usbvision *usbvision = video_drvdata(file);
525
526         strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
527         strlcpy(vc->card,
528                 usbvision_device_data[usbvision->DevModel].ModelString,
529                 sizeof(vc->card));
530         strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
531                 sizeof(vc->bus_info));
532         vc->version = USBVISION_DRIVER_VERSION;
533         vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
534                 V4L2_CAP_AUDIO |
535                 V4L2_CAP_READWRITE |
536                 V4L2_CAP_STREAMING |
537                 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
538         return 0;
539 }
540
541 static int vidioc_enum_input (struct file *file, void *priv,
542                                 struct v4l2_input *vi)
543 {
544         struct usb_usbvision *usbvision = video_drvdata(file);
545         int chan;
546
547         if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
548                 return -EINVAL;
549         if (usbvision->have_tuner) {
550                 chan = vi->index;
551         } else {
552                 chan = vi->index + 1; /*skip Television string*/
553         }
554         /* Determine the requested input characteristics
555            specific for each usbvision card model */
556         switch(chan) {
557         case 0:
558                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
559                         strcpy(vi->name, "White Video Input");
560                 } else {
561                         strcpy(vi->name, "Television");
562                         vi->type = V4L2_INPUT_TYPE_TUNER;
563                         vi->audioset = 1;
564                         vi->tuner = chan;
565                         vi->std = USBVISION_NORMS;
566                 }
567                 break;
568         case 1:
569                 vi->type = V4L2_INPUT_TYPE_CAMERA;
570                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
571                         strcpy(vi->name, "Green Video Input");
572                 } else {
573                         strcpy(vi->name, "Composite Video Input");
574                 }
575                 vi->std = V4L2_STD_PAL;
576                 break;
577         case 2:
578                 vi->type = V4L2_INPUT_TYPE_CAMERA;
579                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
580                         strcpy(vi->name, "Yellow Video Input");
581                 } else {
582                         strcpy(vi->name, "S-Video Input");
583                 }
584                 vi->std = V4L2_STD_PAL;
585                 break;
586         case 3:
587                 vi->type = V4L2_INPUT_TYPE_CAMERA;
588                 strcpy(vi->name, "Red Video Input");
589                 vi->std = V4L2_STD_PAL;
590                 break;
591         }
592         return 0;
593 }
594
595 static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
596 {
597         struct usb_usbvision *usbvision = video_drvdata(file);
598
599         *input = usbvision->ctl_input;
600         return 0;
601 }
602
603 static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
604 {
605         struct usb_usbvision *usbvision = video_drvdata(file);
606
607         if ((input >= usbvision->video_inputs) || (input < 0) )
608                 return -EINVAL;
609
610         mutex_lock(&usbvision->lock);
611         usbvision_muxsel(usbvision, input);
612         usbvision_set_input(usbvision);
613         usbvision_set_output(usbvision,
614                              usbvision->curwidth,
615                              usbvision->curheight);
616         mutex_unlock(&usbvision->lock);
617         return 0;
618 }
619
620 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
621 {
622         struct usb_usbvision *usbvision = video_drvdata(file);
623
624         usbvision->tvnormId=*id;
625
626         mutex_lock(&usbvision->lock);
627         call_i2c_clients(usbvision, VIDIOC_S_STD,
628                          &usbvision->tvnormId);
629         mutex_unlock(&usbvision->lock);
630         /* propagate the change to the decoder */
631         usbvision_muxsel(usbvision, usbvision->ctl_input);
632
633         return 0;
634 }
635
636 static int vidioc_g_tuner (struct file *file, void *priv,
637                                 struct v4l2_tuner *vt)
638 {
639         struct usb_usbvision *usbvision = video_drvdata(file);
640
641         if (!usbvision->have_tuner || vt->index)        // Only tuner 0
642                 return -EINVAL;
643         if(usbvision->radio) {
644                 strcpy(vt->name, "Radio");
645                 vt->type = V4L2_TUNER_RADIO;
646         } else {
647                 strcpy(vt->name, "Television");
648         }
649         /* Let clients fill in the remainder of this struct */
650         call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
651
652         return 0;
653 }
654
655 static int vidioc_s_tuner (struct file *file, void *priv,
656                                 struct v4l2_tuner *vt)
657 {
658         struct usb_usbvision *usbvision = video_drvdata(file);
659
660         // Only no or one tuner for now
661         if (!usbvision->have_tuner || vt->index)
662                 return -EINVAL;
663         /* let clients handle this */
664         call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
665
666         return 0;
667 }
668
669 static int vidioc_g_frequency (struct file *file, void *priv,
670                                 struct v4l2_frequency *freq)
671 {
672         struct usb_usbvision *usbvision = video_drvdata(file);
673
674         freq->tuner = 0; // Only one tuner
675         if(usbvision->radio) {
676                 freq->type = V4L2_TUNER_RADIO;
677         } else {
678                 freq->type = V4L2_TUNER_ANALOG_TV;
679         }
680         freq->frequency = usbvision->freq;
681
682         return 0;
683 }
684
685 static int vidioc_s_frequency (struct file *file, void *priv,
686                                 struct v4l2_frequency *freq)
687 {
688         struct usb_usbvision *usbvision = video_drvdata(file);
689
690         // Only no or one tuner for now
691         if (!usbvision->have_tuner || freq->tuner)
692                 return -EINVAL;
693
694         usbvision->freq = freq->frequency;
695         call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
696
697         return 0;
698 }
699
700 static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
701 {
702         struct usb_usbvision *usbvision = video_drvdata(file);
703
704         memset(a,0,sizeof(*a));
705         if(usbvision->radio) {
706                 strcpy(a->name,"Radio");
707         } else {
708                 strcpy(a->name, "TV");
709         }
710
711         return 0;
712 }
713
714 static int vidioc_s_audio (struct file *file, void *fh,
715                           struct v4l2_audio *a)
716 {
717         if(a->index) {
718                 return -EINVAL;
719         }
720
721         return 0;
722 }
723
724 static int vidioc_queryctrl (struct file *file, void *priv,
725                             struct v4l2_queryctrl *ctrl)
726 {
727         struct usb_usbvision *usbvision = video_drvdata(file);
728         int id=ctrl->id;
729
730         memset(ctrl,0,sizeof(*ctrl));
731         ctrl->id=id;
732
733         call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
734
735         if (!ctrl->type)
736                 return -EINVAL;
737
738         return 0;
739 }
740
741 static int vidioc_g_ctrl (struct file *file, void *priv,
742                                 struct v4l2_control *ctrl)
743 {
744         struct usb_usbvision *usbvision = video_drvdata(file);
745         call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
746
747         return 0;
748 }
749
750 static int vidioc_s_ctrl (struct file *file, void *priv,
751                                 struct v4l2_control *ctrl)
752 {
753         struct usb_usbvision *usbvision = video_drvdata(file);
754         call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
755
756         return 0;
757 }
758
759 static int vidioc_reqbufs (struct file *file,
760                            void *priv, struct v4l2_requestbuffers *vr)
761 {
762         struct usb_usbvision *usbvision = video_drvdata(file);
763         int ret;
764
765         RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
766
767         /* Check input validity:
768            the user must do a VIDEO CAPTURE and MMAP method. */
769         if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
770            (vr->memory != V4L2_MEMORY_MMAP))
771                 return -EINVAL;
772
773         if(usbvision->streaming == Stream_On) {
774                 if ((ret = usbvision_stream_interrupt(usbvision)))
775                         return ret;
776         }
777
778         usbvision_frames_free(usbvision);
779         usbvision_empty_framequeues(usbvision);
780         vr->count = usbvision_frames_alloc(usbvision,vr->count);
781
782         usbvision->curFrame = NULL;
783
784         return 0;
785 }
786
787 static int vidioc_querybuf (struct file *file,
788                             void *priv, struct v4l2_buffer *vb)
789 {
790         struct usb_usbvision *usbvision = video_drvdata(file);
791         struct usbvision_frame *frame;
792
793         /* FIXME : must control
794            that buffers are mapped (VIDIOC_REQBUFS has been called) */
795         if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
796                 return -EINVAL;
797         }
798         if(vb->index>=usbvision->num_frames)  {
799                 return -EINVAL;
800         }
801         /* Updating the corresponding frame state */
802         vb->flags = 0;
803         frame = &usbvision->frame[vb->index];
804         if(frame->grabstate >= FrameState_Ready)
805                 vb->flags |= V4L2_BUF_FLAG_QUEUED;
806         if(frame->grabstate >= FrameState_Done)
807                 vb->flags |= V4L2_BUF_FLAG_DONE;
808         if(frame->grabstate == FrameState_Unused)
809                 vb->flags |= V4L2_BUF_FLAG_MAPPED;
810         vb->memory = V4L2_MEMORY_MMAP;
811
812         vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
813
814         vb->memory = V4L2_MEMORY_MMAP;
815         vb->field = V4L2_FIELD_NONE;
816         vb->length = usbvision->curwidth*
817                 usbvision->curheight*
818                 usbvision->palette.bytes_per_pixel;
819         vb->timestamp = usbvision->frame[vb->index].timestamp;
820         vb->sequence = usbvision->frame[vb->index].sequence;
821         return 0;
822 }
823
824 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
825 {
826         struct usb_usbvision *usbvision = video_drvdata(file);
827         struct usbvision_frame *frame;
828         unsigned long lock_flags;
829
830         /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
831         if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
832                 return -EINVAL;
833         }
834         if(vb->index>=usbvision->num_frames)  {
835                 return -EINVAL;
836         }
837
838         frame = &usbvision->frame[vb->index];
839
840         if (frame->grabstate != FrameState_Unused) {
841                 return -EAGAIN;
842         }
843
844         /* Mark it as ready and enqueue frame */
845         frame->grabstate = FrameState_Ready;
846         frame->scanstate = ScanState_Scanning;
847         frame->scanlength = 0;  /* Accumulated in usbvision_parse_data() */
848
849         vb->flags &= ~V4L2_BUF_FLAG_DONE;
850
851         /* set v4l2_format index */
852         frame->v4l2_format = usbvision->palette;
853
854         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
855         list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
856         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
857
858         return 0;
859 }
860
861 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
862 {
863         struct usb_usbvision *usbvision = video_drvdata(file);
864         int ret;
865         struct usbvision_frame *f;
866         unsigned long lock_flags;
867
868         if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
869                 return -EINVAL;
870
871         if (list_empty(&(usbvision->outqueue))) {
872                 if (usbvision->streaming == Stream_Idle)
873                         return -EINVAL;
874                 ret = wait_event_interruptible
875                         (usbvision->wait_frame,
876                          !list_empty(&(usbvision->outqueue)));
877                 if (ret)
878                         return ret;
879         }
880
881         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
882         f = list_entry(usbvision->outqueue.next,
883                        struct usbvision_frame, frame);
884         list_del(usbvision->outqueue.next);
885         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
886
887         f->grabstate = FrameState_Unused;
888
889         vb->memory = V4L2_MEMORY_MMAP;
890         vb->flags = V4L2_BUF_FLAG_MAPPED |
891                 V4L2_BUF_FLAG_QUEUED |
892                 V4L2_BUF_FLAG_DONE;
893         vb->index = f->index;
894         vb->sequence = f->sequence;
895         vb->timestamp = f->timestamp;
896         vb->field = V4L2_FIELD_NONE;
897         vb->bytesused = f->scanlength;
898
899         return 0;
900 }
901
902 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
903 {
904         struct usb_usbvision *usbvision = video_drvdata(file);
905         int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
906
907         usbvision->streaming = Stream_On;
908         call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
909
910         return 0;
911 }
912
913 static int vidioc_streamoff(struct file *file,
914                             void *priv, enum v4l2_buf_type type)
915 {
916         struct usb_usbvision *usbvision = video_drvdata(file);
917         int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
918
919         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
920                 return -EINVAL;
921
922         if(usbvision->streaming == Stream_On) {
923                 usbvision_stream_interrupt(usbvision);
924                 /* Stop all video streamings */
925                 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
926         }
927         usbvision_empty_framequeues(usbvision);
928
929         return 0;
930 }
931
932 static int vidioc_enum_fmt_vid_cap (struct file *file, void  *priv,
933                                         struct v4l2_fmtdesc *vfd)
934 {
935         if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
936                 return -EINVAL;
937         }
938         vfd->flags = 0;
939         vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
940         strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
941         vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
942         memset(vfd->reserved, 0, sizeof(vfd->reserved));
943         return 0;
944 }
945
946 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
947                                         struct v4l2_format *vf)
948 {
949         struct usb_usbvision *usbvision = video_drvdata(file);
950         vf->fmt.pix.width = usbvision->curwidth;
951         vf->fmt.pix.height = usbvision->curheight;
952         vf->fmt.pix.pixelformat = usbvision->palette.format;
953         vf->fmt.pix.bytesperline =
954                 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
955         vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
956         vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
957         vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
958
959         return 0;
960 }
961
962 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
963                                struct v4l2_format *vf)
964 {
965         struct usb_usbvision *usbvision = video_drvdata(file);
966         int formatIdx;
967
968         /* Find requested format in available ones */
969         for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
970                 if(vf->fmt.pix.pixelformat ==
971                    usbvision_v4l2_format[formatIdx].format) {
972                         usbvision->palette = usbvision_v4l2_format[formatIdx];
973                         break;
974                 }
975         }
976         /* robustness */
977         if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
978                 return -EINVAL;
979         }
980         RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
981         RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
982
983         vf->fmt.pix.bytesperline = vf->fmt.pix.width*
984                 usbvision->palette.bytes_per_pixel;
985         vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
986
987         return 0;
988 }
989
990 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
991                                struct v4l2_format *vf)
992 {
993         struct usb_usbvision *usbvision = video_drvdata(file);
994         int ret;
995
996         if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
997                 return ret;
998         }
999
1000         /* stop io in case it is already in progress */
1001         if(usbvision->streaming == Stream_On) {
1002                 if ((ret = usbvision_stream_interrupt(usbvision)))
1003                         return ret;
1004         }
1005         usbvision_frames_free(usbvision);
1006         usbvision_empty_framequeues(usbvision);
1007
1008         usbvision->curFrame = NULL;
1009
1010         /* by now we are committed to the new data... */
1011         mutex_lock(&usbvision->lock);
1012         usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1013         mutex_unlock(&usbvision->lock);
1014
1015         return 0;
1016 }
1017
1018 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1019                       size_t count, loff_t *ppos)
1020 {
1021         struct usb_usbvision *usbvision = video_drvdata(file);
1022         int noblock = file->f_flags & O_NONBLOCK;
1023         unsigned long lock_flags;
1024
1025         int ret,i;
1026         struct usbvision_frame *frame;
1027
1028         PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
1029                (unsigned long)count, noblock);
1030
1031         if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1032                 return -EFAULT;
1033
1034         /* This entry point is compatible with the mmap routines
1035            so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1036            to get frames or call read on the device. */
1037         if(!usbvision->num_frames) {
1038                 /* First, allocate some frames to work with
1039                    if this has not been done with VIDIOC_REQBUF */
1040                 usbvision_frames_free(usbvision);
1041                 usbvision_empty_framequeues(usbvision);
1042                 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1043         }
1044
1045         if(usbvision->streaming != Stream_On) {
1046                 /* no stream is running, make it running ! */
1047                 usbvision->streaming = Stream_On;
1048                 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1049         }
1050
1051         /* Then, enqueue as many frames as possible
1052            (like a user of VIDIOC_QBUF would do) */
1053         for(i=0;i<usbvision->num_frames;i++) {
1054                 frame = &usbvision->frame[i];
1055                 if(frame->grabstate == FrameState_Unused) {
1056                         /* Mark it as ready and enqueue frame */
1057                         frame->grabstate = FrameState_Ready;
1058                         frame->scanstate = ScanState_Scanning;
1059                         /* Accumulated in usbvision_parse_data() */
1060                         frame->scanlength = 0;
1061
1062                         /* set v4l2_format index */
1063                         frame->v4l2_format = usbvision->palette;
1064
1065                         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1066                         list_add_tail(&frame->frame, &usbvision->inqueue);
1067                         spin_unlock_irqrestore(&usbvision->queue_lock,
1068                                                lock_flags);
1069                 }
1070         }
1071
1072         /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1073         if (list_empty(&(usbvision->outqueue))) {
1074                 if(noblock)
1075                         return -EAGAIN;
1076
1077                 ret = wait_event_interruptible
1078                         (usbvision->wait_frame,
1079                          !list_empty(&(usbvision->outqueue)));
1080                 if (ret)
1081                         return ret;
1082         }
1083
1084         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1085         frame = list_entry(usbvision->outqueue.next,
1086                            struct usbvision_frame, frame);
1087         list_del(usbvision->outqueue.next);
1088         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1089
1090         /* An error returns an empty frame */
1091         if (frame->grabstate == FrameState_Error) {
1092                 frame->bytes_read = 0;
1093                 return 0;
1094         }
1095
1096         PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1097                __func__,
1098                frame->index, frame->bytes_read, frame->scanlength);
1099
1100         /* copy bytes to user space; we allow for partials reads */
1101         if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1102                 count = frame->scanlength - frame->bytes_read;
1103
1104         if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1105                 return -EFAULT;
1106         }
1107
1108         frame->bytes_read += count;
1109         PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
1110                __func__,
1111                (unsigned long)count, frame->bytes_read);
1112
1113         /* For now, forget the frame if it has not been read in one shot. */
1114 /*      if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1115                 frame->bytes_read = 0;
1116
1117                 /* Mark it as available to be used again. */
1118                 frame->grabstate = FrameState_Unused;
1119 /*      } */
1120
1121         return count;
1122 }
1123
1124 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1125 {
1126         unsigned long size = vma->vm_end - vma->vm_start,
1127                 start = vma->vm_start;
1128         void *pos;
1129         u32 i;
1130         struct usb_usbvision *usbvision = video_drvdata(file);
1131
1132         PDEBUG(DBG_MMAP, "mmap");
1133
1134         mutex_lock(&usbvision->lock);
1135
1136         if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1137                 mutex_unlock(&usbvision->lock);
1138                 return -EFAULT;
1139         }
1140
1141         if (!(vma->vm_flags & VM_WRITE) ||
1142             size != PAGE_ALIGN(usbvision->max_frame_size)) {
1143                 mutex_unlock(&usbvision->lock);
1144                 return -EINVAL;
1145         }
1146
1147         for (i = 0; i < usbvision->num_frames; i++) {
1148                 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1149                     vma->vm_pgoff)
1150                         break;
1151         }
1152         if (i == usbvision->num_frames) {
1153                 PDEBUG(DBG_MMAP,
1154                        "mmap: user supplied mapping address is out of range");
1155                 mutex_unlock(&usbvision->lock);
1156                 return -EINVAL;
1157         }
1158
1159         /* VM_IO is eventually going to replace PageReserved altogether */
1160         vma->vm_flags |= VM_IO;
1161         vma->vm_flags |= VM_RESERVED;   /* avoid to swap out this VMA */
1162
1163         pos = usbvision->frame[i].data;
1164         while (size > 0) {
1165
1166                 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1167                         PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1168                         mutex_unlock(&usbvision->lock);
1169                         return -EAGAIN;
1170                 }
1171                 start += PAGE_SIZE;
1172                 pos += PAGE_SIZE;
1173                 size -= PAGE_SIZE;
1174         }
1175
1176         mutex_unlock(&usbvision->lock);
1177         return 0;
1178 }
1179
1180
1181 /*
1182  * Here comes the stuff for radio on usbvision based devices
1183  *
1184  */
1185 static int usbvision_radio_open(struct inode *inode, struct file *file)
1186 {
1187         struct usb_usbvision *usbvision = video_drvdata(file);
1188         int errCode = 0;
1189
1190         PDEBUG(DBG_IO, "%s:", __func__);
1191
1192         mutex_lock(&usbvision->lock);
1193
1194         if (usbvision->user) {
1195                 err("%s: Someone tried to open an already opened USBVision Radio!", __func__);
1196                 errCode = -EBUSY;
1197         }
1198         else {
1199                 if(PowerOnAtOpen) {
1200                         usbvision_reset_powerOffTimer(usbvision);
1201                         if (usbvision->power == 0) {
1202                                 usbvision_power_on(usbvision);
1203                                 usbvision_i2c_register(usbvision);
1204                         }
1205                 }
1206
1207                 /* Alternate interface 1 is is the biggest frame size */
1208                 errCode = usbvision_set_alternate(usbvision);
1209                 if (errCode < 0) {
1210                         usbvision->last_error = errCode;
1211                         errCode = -EBUSY;
1212                         goto out;
1213                 }
1214
1215                 // If so far no errors then we shall start the radio
1216                 usbvision->radio = 1;
1217                 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1218                 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1219                 usbvision->user++;
1220         }
1221
1222         if (errCode) {
1223                 if (PowerOnAtOpen) {
1224                         usbvision_i2c_unregister(usbvision);
1225                         usbvision_power_off(usbvision);
1226                         usbvision->initialized = 0;
1227                 }
1228         }
1229 out:
1230         mutex_unlock(&usbvision->lock);
1231         return errCode;
1232 }
1233
1234
1235 static int usbvision_radio_close(struct inode *inode, struct file *file)
1236 {
1237         struct usb_usbvision *usbvision = video_drvdata(file);
1238         int errCode = 0;
1239
1240         PDEBUG(DBG_IO, "");
1241
1242         mutex_lock(&usbvision->lock);
1243
1244         /* Set packet size to 0 */
1245         usbvision->ifaceAlt=0;
1246         errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1247                                     usbvision->ifaceAlt);
1248
1249         usbvision_audio_off(usbvision);
1250         usbvision->radio=0;
1251         usbvision->user--;
1252
1253         if (PowerOnAtOpen) {
1254                 usbvision_set_powerOffTimer(usbvision);
1255                 usbvision->initialized = 0;
1256         }
1257
1258         mutex_unlock(&usbvision->lock);
1259
1260         if (usbvision->remove_pending) {
1261                 printk(KERN_INFO "%s: Final disconnect\n", __func__);
1262                 usbvision_release(usbvision);
1263         }
1264
1265         PDEBUG(DBG_IO, "success");
1266         return errCode;
1267 }
1268
1269 /*
1270  * Here comes the stuff for vbi on usbvision based devices
1271  *
1272  */
1273 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1274 {
1275         /* TODO */
1276         return -ENODEV;
1277 }
1278
1279 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1280 {
1281         /* TODO */
1282         return -ENODEV;
1283 }
1284
1285 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1286                                  unsigned int cmd, void *arg)
1287 {
1288         /* TODO */
1289         return -ENOIOCTLCMD;
1290 }
1291
1292 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1293                        unsigned int cmd, unsigned long arg)
1294 {
1295         return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1296 }
1297
1298
1299 //
1300 // Video registration stuff
1301 //
1302
1303 // Video template
1304 static const struct file_operations usbvision_fops = {
1305         .owner             = THIS_MODULE,
1306         .open           = usbvision_v4l2_open,
1307         .release        = usbvision_v4l2_close,
1308         .read           = usbvision_v4l2_read,
1309         .mmap           = usbvision_v4l2_mmap,
1310         .ioctl          = video_ioctl2,
1311         .llseek         = no_llseek,
1312 /*      .poll          = video_poll, */
1313         .compat_ioctl  = v4l_compat_ioctl32,
1314 };
1315
1316 static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
1317         .vidioc_querycap      = vidioc_querycap,
1318         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1319         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1320         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1321         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1322         .vidioc_reqbufs       = vidioc_reqbufs,
1323         .vidioc_querybuf      = vidioc_querybuf,
1324         .vidioc_qbuf          = vidioc_qbuf,
1325         .vidioc_dqbuf         = vidioc_dqbuf,
1326         .vidioc_s_std         = vidioc_s_std,
1327         .vidioc_enum_input    = vidioc_enum_input,
1328         .vidioc_g_input       = vidioc_g_input,
1329         .vidioc_s_input       = vidioc_s_input,
1330         .vidioc_queryctrl     = vidioc_queryctrl,
1331         .vidioc_g_audio       = vidioc_g_audio,
1332         .vidioc_s_audio       = vidioc_s_audio,
1333         .vidioc_g_ctrl        = vidioc_g_ctrl,
1334         .vidioc_s_ctrl        = vidioc_s_ctrl,
1335         .vidioc_streamon      = vidioc_streamon,
1336         .vidioc_streamoff     = vidioc_streamoff,
1337 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1338 /*      .vidiocgmbuf          = vidiocgmbuf, */
1339 #endif
1340         .vidioc_g_tuner       = vidioc_g_tuner,
1341         .vidioc_s_tuner       = vidioc_s_tuner,
1342         .vidioc_g_frequency   = vidioc_g_frequency,
1343         .vidioc_s_frequency   = vidioc_s_frequency,
1344 #ifdef CONFIG_VIDEO_ADV_DEBUG
1345         .vidioc_g_register    = vidioc_g_register,
1346         .vidioc_s_register    = vidioc_s_register,
1347 #endif
1348 };
1349
1350 static struct video_device usbvision_video_template = {
1351         .fops           = &usbvision_fops,
1352         .ioctl_ops      = &usbvision_ioctl_ops,
1353         .name           = "usbvision-video",
1354         .release        = video_device_release,
1355         .minor          = -1,
1356         .tvnorms              = USBVISION_NORMS,
1357         .current_norm         = V4L2_STD_PAL
1358 };
1359
1360
1361 // Radio template
1362 static const struct file_operations usbvision_radio_fops = {
1363         .owner             = THIS_MODULE,
1364         .open           = usbvision_radio_open,
1365         .release        = usbvision_radio_close,
1366         .ioctl          = video_ioctl2,
1367         .llseek         = no_llseek,
1368         .compat_ioctl  = v4l_compat_ioctl32,
1369 };
1370
1371 static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = {
1372         .vidioc_querycap      = vidioc_querycap,
1373         .vidioc_enum_input    = vidioc_enum_input,
1374         .vidioc_g_input       = vidioc_g_input,
1375         .vidioc_s_input       = vidioc_s_input,
1376         .vidioc_queryctrl     = vidioc_queryctrl,
1377         .vidioc_g_audio       = vidioc_g_audio,
1378         .vidioc_s_audio       = vidioc_s_audio,
1379         .vidioc_g_ctrl        = vidioc_g_ctrl,
1380         .vidioc_s_ctrl        = vidioc_s_ctrl,
1381         .vidioc_g_tuner       = vidioc_g_tuner,
1382         .vidioc_s_tuner       = vidioc_s_tuner,
1383         .vidioc_g_frequency   = vidioc_g_frequency,
1384         .vidioc_s_frequency   = vidioc_s_frequency,
1385 };
1386
1387 static struct video_device usbvision_radio_template = {
1388         .fops           = &usbvision_radio_fops,
1389         .name           = "usbvision-radio",
1390         .release        = video_device_release,
1391         .minor          = -1,
1392         .ioctl_ops      = &usbvision_radio_ioctl_ops,
1393
1394         .tvnorms              = USBVISION_NORMS,
1395         .current_norm         = V4L2_STD_PAL
1396 };
1397
1398 // vbi template
1399 static const struct file_operations usbvision_vbi_fops = {
1400         .owner             = THIS_MODULE,
1401         .open           = usbvision_vbi_open,
1402         .release        = usbvision_vbi_close,
1403         .ioctl          = usbvision_vbi_ioctl,
1404         .llseek         = no_llseek,
1405         .compat_ioctl  = v4l_compat_ioctl32,
1406 };
1407
1408 static struct video_device usbvision_vbi_template=
1409 {
1410         .fops           = &usbvision_vbi_fops,
1411         .release        = video_device_release,
1412         .name           = "usbvision-vbi",
1413         .minor          = -1,
1414 };
1415
1416
1417 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1418                                         struct video_device *vdev_template,
1419                                         char *name)
1420 {
1421         struct usb_device *usb_dev = usbvision->dev;
1422         struct video_device *vdev;
1423
1424         if (usb_dev == NULL) {
1425                 err("%s: usbvision->dev is not set", __func__);
1426                 return NULL;
1427         }
1428
1429         vdev = video_device_alloc();
1430         if (NULL == vdev) {
1431                 return NULL;
1432         }
1433         *vdev = *vdev_template;
1434 //      vdev->minor   = -1;
1435         vdev->parent  = &usb_dev->dev;
1436         snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1437         video_set_drvdata(vdev, usbvision);
1438         return vdev;
1439 }
1440
1441 // unregister video4linux devices
1442 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1443 {
1444         // vbi Device:
1445         if (usbvision->vbi) {
1446                 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1447                        usbvision->vbi->minor & 0x1f);
1448                 if (usbvision->vbi->minor != -1) {
1449                         video_unregister_device(usbvision->vbi);
1450                 } else {
1451                         video_device_release(usbvision->vbi);
1452                 }
1453                 usbvision->vbi = NULL;
1454         }
1455
1456         // Radio Device:
1457         if (usbvision->rdev) {
1458                 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1459                        usbvision->rdev->minor & 0x1f);
1460                 if (usbvision->rdev->minor != -1) {
1461                         video_unregister_device(usbvision->rdev);
1462                 } else {
1463                         video_device_release(usbvision->rdev);
1464                 }
1465                 usbvision->rdev = NULL;
1466         }
1467
1468         // Video Device:
1469         if (usbvision->vdev) {
1470                 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1471                        usbvision->vdev->minor & 0x1f);
1472                 if (usbvision->vdev->minor != -1) {
1473                         video_unregister_device(usbvision->vdev);
1474                 } else {
1475                         video_device_release(usbvision->vdev);
1476                 }
1477                 usbvision->vdev = NULL;
1478         }
1479 }
1480
1481 // register video4linux devices
1482 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1483 {
1484         // Video Device:
1485         usbvision->vdev = usbvision_vdev_init(usbvision,
1486                                               &usbvision_video_template,
1487                                               "USBVision Video");
1488         if (usbvision->vdev == NULL) {
1489                 goto err_exit;
1490         }
1491         if (video_register_device(usbvision->vdev,
1492                                   VFL_TYPE_GRABBER,
1493                                   video_nr)<0) {
1494                 goto err_exit;
1495         }
1496         printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1497                usbvision->nr,usbvision->vdev->minor & 0x1f);
1498
1499         // Radio Device:
1500         if (usbvision_device_data[usbvision->DevModel].Radio) {
1501                 // usbvision has radio
1502                 usbvision->rdev = usbvision_vdev_init(usbvision,
1503                                                       &usbvision_radio_template,
1504                                                       "USBVision Radio");
1505                 if (usbvision->rdev == NULL) {
1506                         goto err_exit;
1507                 }
1508                 if (video_register_device(usbvision->rdev,
1509                                           VFL_TYPE_RADIO,
1510                                           radio_nr)<0) {
1511                         goto err_exit;
1512                 }
1513                 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1514                        usbvision->nr, usbvision->rdev->minor & 0x1f);
1515         }
1516         // vbi Device:
1517         if (usbvision_device_data[usbvision->DevModel].vbi) {
1518                 usbvision->vbi = usbvision_vdev_init(usbvision,
1519                                                      &usbvision_vbi_template,
1520                                                      "USBVision VBI");
1521                 if (usbvision->vdev == NULL) {
1522                         goto err_exit;
1523                 }
1524                 if (video_register_device(usbvision->vbi,
1525                                           VFL_TYPE_VBI,
1526                                           vbi_nr)<0) {
1527                         goto err_exit;
1528                 }
1529                 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1530                        usbvision->nr,usbvision->vbi->minor & 0x1f);
1531         }
1532         // all done
1533         return 0;
1534
1535  err_exit:
1536         err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1537         usbvision_unregister_video(usbvision);
1538         return -1;
1539 }
1540
1541 /*
1542  * usbvision_alloc()
1543  *
1544  * This code allocates the struct usb_usbvision.
1545  * It is filled with default values.
1546  *
1547  * Returns NULL on error, a pointer to usb_usbvision else.
1548  *
1549  */
1550 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1551 {
1552         struct usb_usbvision *usbvision;
1553
1554         if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1555             NULL) {
1556                 goto err_exit;
1557         }
1558
1559         usbvision->dev = dev;
1560
1561         mutex_init(&usbvision->lock);   /* available */
1562
1563         // prepare control urb for control messages during interrupts
1564         usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1565         if (usbvision->ctrlUrb == NULL) {
1566                 goto err_exit;
1567         }
1568         init_waitqueue_head(&usbvision->ctrlUrb_wq);
1569
1570         usbvision_init_powerOffTimer(usbvision);
1571
1572         return usbvision;
1573
1574 err_exit:
1575         if (usbvision && usbvision->ctrlUrb) {
1576                 usb_free_urb(usbvision->ctrlUrb);
1577         }
1578         if (usbvision) {
1579                 kfree(usbvision);
1580         }
1581         return NULL;
1582 }
1583
1584 /*
1585  * usbvision_release()
1586  *
1587  * This code does final release of struct usb_usbvision. This happens
1588  * after the device is disconnected -and- all clients closed their files.
1589  *
1590  */
1591 static void usbvision_release(struct usb_usbvision *usbvision)
1592 {
1593         PDEBUG(DBG_PROBE, "");
1594
1595         mutex_lock(&usbvision->lock);
1596
1597         usbvision_reset_powerOffTimer(usbvision);
1598
1599         usbvision->initialized = 0;
1600
1601         mutex_unlock(&usbvision->lock);
1602
1603         usbvision_remove_sysfs(usbvision->vdev);
1604         usbvision_unregister_video(usbvision);
1605
1606         if (usbvision->ctrlUrb) {
1607                 usb_free_urb(usbvision->ctrlUrb);
1608         }
1609
1610         kfree(usbvision);
1611
1612         PDEBUG(DBG_PROBE, "success");
1613 }
1614
1615
1616 /*********************** usb interface **********************************/
1617
1618 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1619 {
1620         int model;
1621
1622         if (usbvision == NULL)
1623                 return;
1624
1625         model = usbvision->DevModel;
1626         usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1627
1628         if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1629                 usbvision->Vin_Reg2_Preset =
1630                         usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1631         } else {
1632                 usbvision->Vin_Reg2_Preset = 0;
1633         }
1634
1635         usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1636
1637         usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1638         usbvision->ctl_input = 0;
1639
1640         /* This should be here to make i2c clients to be able to register */
1641         /* first switch off audio */
1642         usbvision_audio_off(usbvision);
1643         if (!PowerOnAtOpen) {
1644                 /* and then power up the noisy tuner */
1645                 usbvision_power_on(usbvision);
1646                 usbvision_i2c_register(usbvision);
1647         }
1648 }
1649
1650 /*
1651  * usbvision_probe()
1652  *
1653  * This procedure queries device descriptor and accepts the interface
1654  * if it looks like USBVISION video device
1655  *
1656  */
1657 static int __devinit usbvision_probe(struct usb_interface *intf,
1658                                      const struct usb_device_id *devid)
1659 {
1660         struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1661         struct usb_interface *uif;
1662         __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1663         const struct usb_host_interface *interface;
1664         struct usb_usbvision *usbvision = NULL;
1665         const struct usb_endpoint_descriptor *endpoint;
1666         int model,i;
1667
1668         PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1669                                 dev->descriptor.idVendor,
1670                                 dev->descriptor.idProduct, ifnum);
1671
1672         model = devid->driver_info;
1673         if ( (model<0) || (model>=usbvision_device_data_size) ) {
1674                 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1675                 return -ENODEV;
1676         }
1677         printk(KERN_INFO "%s: %s found\n", __func__,
1678                                 usbvision_device_data[model].ModelString);
1679
1680         if (usbvision_device_data[model].Interface >= 0) {
1681                 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1682         } else {
1683                 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1684         }
1685         endpoint = &interface->endpoint[1].desc;
1686         if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1687             USB_ENDPOINT_XFER_ISOC) {
1688                 err("%s: interface %d. has non-ISO endpoint!",
1689                     __func__, ifnum);
1690                 err("%s: Endpoint attributes %d",
1691                     __func__, endpoint->bmAttributes);
1692                 return -ENODEV;
1693         }
1694         if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1695             USB_DIR_OUT) {
1696                 err("%s: interface %d. has ISO OUT endpoint!",
1697                     __func__, ifnum);
1698                 return -ENODEV;
1699         }
1700
1701         if ((usbvision = usbvision_alloc(dev)) == NULL) {
1702                 err("%s: couldn't allocate USBVision struct", __func__);
1703                 return -ENOMEM;
1704         }
1705
1706         if (dev->descriptor.bNumConfigurations > 1) {
1707                 usbvision->bridgeType = BRIDGE_NT1004;
1708         } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1709                 usbvision->bridgeType = BRIDGE_NT1005;
1710         } else {
1711                 usbvision->bridgeType = BRIDGE_NT1003;
1712         }
1713         PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1714
1715         mutex_lock(&usbvision->lock);
1716
1717         /* compute alternate max packet sizes */
1718         uif = dev->actconfig->interface[0];
1719
1720         usbvision->num_alt=uif->num_altsetting;
1721         PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1722         usbvision->alt_max_pkt_size = kmalloc(32*
1723                                               usbvision->num_alt,GFP_KERNEL);
1724         if (usbvision->alt_max_pkt_size == NULL) {
1725                 err("usbvision: out of memory!\n");
1726                 mutex_unlock(&usbvision->lock);
1727                 return -ENOMEM;
1728         }
1729
1730         for (i = 0; i < usbvision->num_alt ; i++) {
1731                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1732                                       wMaxPacketSize);
1733                 usbvision->alt_max_pkt_size[i] =
1734                         (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1735                 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1736                        usbvision->alt_max_pkt_size[i]);
1737         }
1738
1739
1740         usbvision->nr = usbvision_nr++;
1741
1742         usbvision->have_tuner = usbvision_device_data[model].Tuner;
1743         if (usbvision->have_tuner) {
1744                 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1745         }
1746
1747         usbvision->tuner_addr = ADDR_UNSET;
1748
1749         usbvision->DevModel = model;
1750         usbvision->remove_pending = 0;
1751         usbvision->iface = ifnum;
1752         usbvision->ifaceAlt = 0;
1753         usbvision->video_endp = endpoint->bEndpointAddress;
1754         usbvision->isocPacketSize = 0;
1755         usbvision->usb_bandwidth = 0;
1756         usbvision->user = 0;
1757         usbvision->streaming = Stream_Off;
1758         usbvision_register_video(usbvision);
1759         usbvision_configure_video(usbvision);
1760         mutex_unlock(&usbvision->lock);
1761
1762
1763         usb_set_intfdata (intf, usbvision);
1764         usbvision_create_sysfs(usbvision->vdev);
1765
1766         PDEBUG(DBG_PROBE, "success");
1767         return 0;
1768 }
1769
1770
1771 /*
1772  * usbvision_disconnect()
1773  *
1774  * This procedure stops all driver activity, deallocates interface-private
1775  * structure (pointed by 'ptr') and after that driver should be removable
1776  * with no ill consequences.
1777  *
1778  */
1779 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1780 {
1781         struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1782
1783         PDEBUG(DBG_PROBE, "");
1784
1785         if (usbvision == NULL) {
1786                 err("%s: usb_get_intfdata() failed", __func__);
1787                 return;
1788         }
1789         usb_set_intfdata (intf, NULL);
1790
1791         mutex_lock(&usbvision->lock);
1792
1793         // At this time we ask to cancel outstanding URBs
1794         usbvision_stop_isoc(usbvision);
1795
1796         if (usbvision->power) {
1797                 usbvision_i2c_unregister(usbvision);
1798                 usbvision_power_off(usbvision);
1799         }
1800         usbvision->remove_pending = 1;  // Now all ISO data will be ignored
1801
1802         usb_put_dev(usbvision->dev);
1803         usbvision->dev = NULL;  // USB device is no more
1804
1805         mutex_unlock(&usbvision->lock);
1806
1807         if (usbvision->user) {
1808                 printk(KERN_INFO "%s: In use, disconnect pending\n",
1809                        __func__);
1810                 wake_up_interruptible(&usbvision->wait_frame);
1811                 wake_up_interruptible(&usbvision->wait_stream);
1812         } else {
1813                 usbvision_release(usbvision);
1814         }
1815
1816         PDEBUG(DBG_PROBE, "success");
1817 }
1818
1819 static struct usb_driver usbvision_driver = {
1820         .name           = "usbvision",
1821         .id_table       = usbvision_table,
1822         .probe          = usbvision_probe,
1823         .disconnect     = usbvision_disconnect
1824 };
1825
1826 /*
1827  * usbvision_init()
1828  *
1829  * This code is run to initialize the driver.
1830  *
1831  */
1832 static int __init usbvision_init(void)
1833 {
1834         int errCode;
1835
1836         PDEBUG(DBG_PROBE, "");
1837
1838         PDEBUG(DBG_IO,  "IO      debugging is enabled [video]");
1839         PDEBUG(DBG_PROBE, "PROBE   debugging is enabled [video]");
1840         PDEBUG(DBG_MMAP, "MMAP    debugging is enabled [video]");
1841
1842         /* disable planar mode support unless compression enabled */
1843         if (isocMode != ISOC_MODE_COMPRESS ) {
1844                 // FIXME : not the right way to set supported flag
1845                 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1846                 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1847         }
1848
1849         errCode = usb_register(&usbvision_driver);
1850
1851         if (errCode == 0) {
1852                 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
1853                 PDEBUG(DBG_PROBE, "success");
1854         }
1855         return errCode;
1856 }
1857
1858 static void __exit usbvision_exit(void)
1859 {
1860  PDEBUG(DBG_PROBE, "");
1861
1862  usb_deregister(&usbvision_driver);
1863  PDEBUG(DBG_PROBE, "success");
1864 }
1865
1866 module_init(usbvision_init);
1867 module_exit(usbvision_exit);
1868
1869 /*
1870  * Overrides for Emacs so that we follow Linus's tabbing style.
1871  * ---------------------------------------------------------------------------
1872  * Local variables:
1873  * c-basic-offset: 8
1874  * End:
1875  */