Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
[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 #include "usbvision.h"
73 #include "usbvision-cards.h"
74
75 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
76  Dwaine Garden <DwaineGarden@rogers.com>"
77 #define DRIVER_NAME "usbvision"
78 #define DRIVER_ALIAS "USBVision"
79 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
80 #define DRIVER_LICENSE "GPL"
81 #define USBVISION_DRIVER_VERSION_MAJOR 0
82 #define USBVISION_DRIVER_VERSION_MINOR 9
83 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
84 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
85 USBVISION_DRIVER_VERSION_MINOR,\
86 USBVISION_DRIVER_VERSION_PATCHLEVEL)
87 #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
88  "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
89  "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
90
91 #define ENABLE_HEXDUMP  0       /* Enable if you need it */
92
93
94 #ifdef USBVISION_DEBUG
95         #define PDEBUG(level, fmt, args...) { \
96                 if (video_debug & (level)) \
97                         printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \
98                                 __func__, __LINE__ , ## args); \
99         }
100 #else
101         #define PDEBUG(level, fmt, args...) do {} while(0)
102 #endif
103
104 #define DBG_IO          1<<1
105 #define DBG_PROBE       1<<2
106 #define DBG_MMAP        1<<3
107
108 //String operations
109 #define rmspace(str)    while(*str==' ') str++;
110 #define goto2next(str)  while(*str!=' ') str++; while(*str==' ') str++;
111
112
113 /* sequential number of usbvision device */
114 static int usbvision_nr;
115
116 static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
117         { 1, 1,  8, V4L2_PIX_FMT_GREY    , "GREY" },
118         { 1, 2, 16, V4L2_PIX_FMT_RGB565  , "RGB565" },
119         { 1, 3, 24, V4L2_PIX_FMT_RGB24   , "RGB24" },
120         { 1, 4, 32, V4L2_PIX_FMT_RGB32   , "RGB32" },
121         { 1, 2, 16, V4L2_PIX_FMT_RGB555  , "RGB555" },
122         { 1, 2, 16, V4L2_PIX_FMT_YUYV    , "YUV422" },
123         { 1, 2, 12, V4L2_PIX_FMT_YVU420  , "YUV420P" }, // 1.5 !
124         { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
125 };
126
127 /* Function prototypes */
128 static void usbvision_release(struct usb_usbvision *usbvision);
129
130 /* Default initialization of device driver parameters */
131 /* Set the default format for ISOC endpoint */
132 static int isocMode = ISOC_MODE_COMPRESS;
133 /* Set the default Debug Mode of the device driver */
134 static int video_debug;
135 /* Set the default device to power on at startup */
136 static int PowerOnAtOpen = 1;
137 /* Sequential Number of Video Device */
138 static int video_nr = -1;
139 /* Sequential Number of Radio Device */
140 static int radio_nr = -1;
141 /* Sequential Number of VBI Device */
142 static int vbi_nr = -1;
143
144 /* Grab parameters for the device driver */
145
146 /* Showing parameters under SYSFS */
147 module_param(isocMode, int, 0444);
148 module_param(video_debug, int, 0444);
149 module_param(PowerOnAtOpen, int, 0444);
150 module_param(video_nr, int, 0444);
151 module_param(radio_nr, int, 0444);
152 module_param(vbi_nr, int, 0444);
153
154 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint.  Default: 0x60 (Compression On)");
155 MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver.  Default: 0 (Off)");
156 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened.  Default: 1 (On)");
157 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX).  Default: -1 (autodetect)");
158 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX).  Default: -1 (autodetect)");
159 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX).  Default: -1 (autodetect)");
160
161
162 // Misc stuff
163 MODULE_AUTHOR(DRIVER_AUTHOR);
164 MODULE_DESCRIPTION(DRIVER_DESC);
165 MODULE_LICENSE(DRIVER_LICENSE);
166 MODULE_VERSION(USBVISION_VERSION_STRING);
167 MODULE_ALIAS(DRIVER_ALIAS);
168
169
170 /*****************************************************************************/
171 /* SYSFS Code - Copied from the stv680.c usb module.                         */
172 /* Device information is located at /sys/class/video4linux/video0            */
173 /* Device parameters information is located at /sys/module/usbvision         */
174 /* Device USB Information is located at                                      */
175 /*   /sys/bus/usb/drivers/USBVision Video Grabber                            */
176 /*****************************************************************************/
177
178 #define YES_NO(x) ((x) ? "Yes" : "No")
179
180 static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
181 {
182         struct video_device *vdev =
183                 container_of(cd, struct video_device, dev);
184         return video_get_drvdata(vdev);
185 }
186
187 static ssize_t show_version(struct device *cd,
188                             struct device_attribute *attr, char *buf)
189 {
190         return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
191 }
192 static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
193
194 static ssize_t show_model(struct device *cd,
195                           struct device_attribute *attr, char *buf)
196 {
197         struct video_device *vdev =
198                 container_of(cd, struct video_device, dev);
199         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
200         return sprintf(buf, "%s\n",
201                        usbvision_device_data[usbvision->DevModel].ModelString);
202 }
203 static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
204
205 static ssize_t show_hue(struct device *cd,
206                         struct device_attribute *attr, char *buf)
207 {
208         struct video_device *vdev =
209                 container_of(cd, struct video_device, dev);
210         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
211         struct v4l2_control ctrl;
212         ctrl.id = V4L2_CID_HUE;
213         ctrl.value = 0;
214         if(usbvision->user)
215                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
216         return sprintf(buf, "%d\n", ctrl.value);
217 }
218 static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
219
220 static ssize_t show_contrast(struct device *cd,
221                              struct device_attribute *attr, char *buf)
222 {
223         struct video_device *vdev =
224                 container_of(cd, struct video_device, dev);
225         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
226         struct v4l2_control ctrl;
227         ctrl.id = V4L2_CID_CONTRAST;
228         ctrl.value = 0;
229         if(usbvision->user)
230                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
231         return sprintf(buf, "%d\n", ctrl.value);
232 }
233 static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
234
235 static ssize_t show_brightness(struct device *cd,
236                                struct device_attribute *attr, char *buf)
237 {
238         struct video_device *vdev =
239                 container_of(cd, struct video_device, dev);
240         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
241         struct v4l2_control ctrl;
242         ctrl.id = V4L2_CID_BRIGHTNESS;
243         ctrl.value = 0;
244         if(usbvision->user)
245                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
246         return sprintf(buf, "%d\n", ctrl.value);
247 }
248 static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
249
250 static ssize_t show_saturation(struct device *cd,
251                                struct device_attribute *attr, char *buf)
252 {
253         struct video_device *vdev =
254                 container_of(cd, struct video_device, dev);
255         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
256         struct v4l2_control ctrl;
257         ctrl.id = V4L2_CID_SATURATION;
258         ctrl.value = 0;
259         if(usbvision->user)
260                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
261         return sprintf(buf, "%d\n", ctrl.value);
262 }
263 static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
264
265 static ssize_t show_streaming(struct device *cd,
266                               struct device_attribute *attr, char *buf)
267 {
268         struct video_device *vdev =
269                 container_of(cd, struct video_device, dev);
270         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
271         return sprintf(buf, "%s\n",
272                        YES_NO(usbvision->streaming==Stream_On?1:0));
273 }
274 static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
275
276 static ssize_t show_compression(struct device *cd,
277                                 struct device_attribute *attr, char *buf)
278 {
279         struct video_device *vdev =
280                 container_of(cd, struct video_device, dev);
281         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
282         return sprintf(buf, "%s\n",
283                        YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
284 }
285 static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
286
287 static ssize_t show_device_bridge(struct device *cd,
288                                   struct device_attribute *attr, char *buf)
289 {
290         struct video_device *vdev =
291                 container_of(cd, struct video_device, dev);
292         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
293         return sprintf(buf, "%d\n", usbvision->bridgeType);
294 }
295 static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
296
297 static void usbvision_create_sysfs(struct video_device *vdev)
298 {
299         int res;
300         if (!vdev)
301                 return;
302         do {
303                 res = device_create_file(&vdev->dev, &dev_attr_version);
304                 if (res<0)
305                         break;
306                 res = device_create_file(&vdev->dev, &dev_attr_model);
307                 if (res<0)
308                         break;
309                 res = device_create_file(&vdev->dev, &dev_attr_hue);
310                 if (res<0)
311                         break;
312                 res = device_create_file(&vdev->dev, &dev_attr_contrast);
313                 if (res<0)
314                         break;
315                 res = device_create_file(&vdev->dev, &dev_attr_brightness);
316                 if (res<0)
317                         break;
318                 res = device_create_file(&vdev->dev, &dev_attr_saturation);
319                 if (res<0)
320                         break;
321                 res = device_create_file(&vdev->dev, &dev_attr_streaming);
322                 if (res<0)
323                         break;
324                 res = device_create_file(&vdev->dev, &dev_attr_compression);
325                 if (res<0)
326                         break;
327                 res = device_create_file(&vdev->dev, &dev_attr_bridge);
328                 if (res>=0)
329                         return;
330         } while (0);
331
332         err("%s error: %d\n", __func__, res);
333 }
334
335 static void usbvision_remove_sysfs(struct video_device *vdev)
336 {
337         if (vdev) {
338                 device_remove_file(&vdev->dev, &dev_attr_version);
339                 device_remove_file(&vdev->dev, &dev_attr_model);
340                 device_remove_file(&vdev->dev, &dev_attr_hue);
341                 device_remove_file(&vdev->dev, &dev_attr_contrast);
342                 device_remove_file(&vdev->dev, &dev_attr_brightness);
343                 device_remove_file(&vdev->dev, &dev_attr_saturation);
344                 device_remove_file(&vdev->dev, &dev_attr_streaming);
345                 device_remove_file(&vdev->dev, &dev_attr_compression);
346                 device_remove_file(&vdev->dev, &dev_attr_bridge);
347         }
348 }
349
350 /*
351  * usbvision_open()
352  *
353  * This is part of Video 4 Linux API. The driver can be opened by one
354  * client only (checks internal counter 'usbvision->user'). The procedure
355  * then allocates buffers needed for video processing.
356  *
357  */
358 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
359 {
360         struct usb_usbvision *usbvision = video_drvdata(file);
361         int errCode = 0;
362
363         PDEBUG(DBG_IO, "open");
364
365         lock_kernel();
366         usbvision_reset_powerOffTimer(usbvision);
367
368         if (usbvision->user)
369                 errCode = -EBUSY;
370         else {
371                 /* Allocate memory for the scratch ring buffer */
372                 errCode = usbvision_scratch_alloc(usbvision);
373                 if (isocMode==ISOC_MODE_COMPRESS) {
374                         /* Allocate intermediate decompression buffers
375                            only if needed */
376                         errCode = usbvision_decompress_alloc(usbvision);
377                 }
378                 if (errCode) {
379                         /* Deallocate all buffers if trouble */
380                         usbvision_scratch_free(usbvision);
381                         usbvision_decompress_free(usbvision);
382                 }
383         }
384
385         /* If so far no errors then we shall start the camera */
386         if (!errCode) {
387                 mutex_lock(&usbvision->lock);
388                 if (usbvision->power == 0) {
389                         usbvision_power_on(usbvision);
390                         usbvision_i2c_register(usbvision);
391                 }
392
393                 /* Send init sequence only once, it's large! */
394                 if (!usbvision->initialized) {
395                         int setup_ok = 0;
396                         setup_ok = usbvision_setup(usbvision,isocMode);
397                         if (setup_ok)
398                                 usbvision->initialized = 1;
399                         else
400                                 errCode = -EBUSY;
401                 }
402
403                 if (!errCode) {
404                         usbvision_begin_streaming(usbvision);
405                         errCode = usbvision_init_isoc(usbvision);
406                         /* device must be initialized before isoc transfer */
407                         usbvision_muxsel(usbvision,0);
408                         usbvision->user++;
409                 } else {
410                         if (PowerOnAtOpen) {
411                                 usbvision_i2c_unregister(usbvision);
412                                 usbvision_power_off(usbvision);
413                                 usbvision->initialized = 0;
414                         }
415                 }
416                 mutex_unlock(&usbvision->lock);
417         }
418
419         /* prepare queues */
420         usbvision_empty_framequeues(usbvision);
421
422         PDEBUG(DBG_IO, "success");
423         unlock_kernel();
424         return errCode;
425 }
426
427 /*
428  * usbvision_v4l2_close()
429  *
430  * This is part of Video 4 Linux API. The procedure
431  * stops streaming and deallocates all buffers that were earlier
432  * allocated in usbvision_v4l2_open().
433  *
434  */
435 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
436 {
437         struct usb_usbvision *usbvision = video_drvdata(file);
438
439         PDEBUG(DBG_IO, "close");
440         mutex_lock(&usbvision->lock);
441
442         usbvision_audio_off(usbvision);
443         usbvision_restart_isoc(usbvision);
444         usbvision_stop_isoc(usbvision);
445
446         usbvision_decompress_free(usbvision);
447         usbvision_frames_free(usbvision);
448         usbvision_empty_framequeues(usbvision);
449         usbvision_scratch_free(usbvision);
450
451         usbvision->user--;
452
453         if (PowerOnAtOpen) {
454                 /* power off in a little while
455                    to avoid off/on every close/open short sequences */
456                 usbvision_set_powerOffTimer(usbvision);
457                 usbvision->initialized = 0;
458         }
459
460         mutex_unlock(&usbvision->lock);
461
462         if (usbvision->remove_pending) {
463                 printk(KERN_INFO "%s: Final disconnect\n", __func__);
464                 usbvision_release(usbvision);
465         }
466
467         PDEBUG(DBG_IO, "success");
468         return 0;
469 }
470
471
472 /*
473  * usbvision_ioctl()
474  *
475  * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
476  *
477  */
478 #ifdef CONFIG_VIDEO_ADV_DEBUG
479 static int vidioc_g_register (struct file *file, void *priv,
480                                 struct v4l2_register *reg)
481 {
482         struct usb_usbvision *usbvision = video_drvdata(file);
483         int errCode;
484
485         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
486                 return -EINVAL;
487         /* NT100x has a 8-bit register space */
488         errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
489         if (errCode < 0) {
490                 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
491                     __func__, errCode);
492                 return errCode;
493         }
494         reg->val = errCode;
495         return 0;
496 }
497
498 static int vidioc_s_register (struct file *file, void *priv,
499                                 struct v4l2_register *reg)
500 {
501         struct usb_usbvision *usbvision = video_drvdata(file);
502         int errCode;
503
504         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
505                 return -EINVAL;
506         /* NT100x has a 8-bit register space */
507         errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
508         if (errCode < 0) {
509                 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
510                     __func__, errCode);
511                 return errCode;
512         }
513         return 0;
514 }
515 #endif
516
517 static int vidioc_querycap (struct file *file, void  *priv,
518                                         struct v4l2_capability *vc)
519 {
520         struct usb_usbvision *usbvision = video_drvdata(file);
521
522         strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
523         strlcpy(vc->card,
524                 usbvision_device_data[usbvision->DevModel].ModelString,
525                 sizeof(vc->card));
526         strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
527                 sizeof(vc->bus_info));
528         vc->version = USBVISION_DRIVER_VERSION;
529         vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
530                 V4L2_CAP_AUDIO |
531                 V4L2_CAP_READWRITE |
532                 V4L2_CAP_STREAMING |
533                 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
534         return 0;
535 }
536
537 static int vidioc_enum_input (struct file *file, void *priv,
538                                 struct v4l2_input *vi)
539 {
540         struct usb_usbvision *usbvision = video_drvdata(file);
541         int chan;
542
543         if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
544                 return -EINVAL;
545         if (usbvision->have_tuner) {
546                 chan = vi->index;
547         } else {
548                 chan = vi->index + 1; /*skip Television string*/
549         }
550         /* Determine the requested input characteristics
551            specific for each usbvision card model */
552         switch(chan) {
553         case 0:
554                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
555                         strcpy(vi->name, "White Video Input");
556                 } else {
557                         strcpy(vi->name, "Television");
558                         vi->type = V4L2_INPUT_TYPE_TUNER;
559                         vi->audioset = 1;
560                         vi->tuner = chan;
561                         vi->std = USBVISION_NORMS;
562                 }
563                 break;
564         case 1:
565                 vi->type = V4L2_INPUT_TYPE_CAMERA;
566                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
567                         strcpy(vi->name, "Green Video Input");
568                 } else {
569                         strcpy(vi->name, "Composite Video Input");
570                 }
571                 vi->std = V4L2_STD_PAL;
572                 break;
573         case 2:
574                 vi->type = V4L2_INPUT_TYPE_CAMERA;
575                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
576                         strcpy(vi->name, "Yellow Video Input");
577                 } else {
578                         strcpy(vi->name, "S-Video Input");
579                 }
580                 vi->std = V4L2_STD_PAL;
581                 break;
582         case 3:
583                 vi->type = V4L2_INPUT_TYPE_CAMERA;
584                 strcpy(vi->name, "Red Video Input");
585                 vi->std = V4L2_STD_PAL;
586                 break;
587         }
588         return 0;
589 }
590
591 static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
592 {
593         struct usb_usbvision *usbvision = video_drvdata(file);
594
595         *input = usbvision->ctl_input;
596         return 0;
597 }
598
599 static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
600 {
601         struct usb_usbvision *usbvision = video_drvdata(file);
602
603         if ((input >= usbvision->video_inputs) || (input < 0) )
604                 return -EINVAL;
605
606         mutex_lock(&usbvision->lock);
607         usbvision_muxsel(usbvision, input);
608         usbvision_set_input(usbvision);
609         usbvision_set_output(usbvision,
610                              usbvision->curwidth,
611                              usbvision->curheight);
612         mutex_unlock(&usbvision->lock);
613         return 0;
614 }
615
616 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
617 {
618         struct usb_usbvision *usbvision = video_drvdata(file);
619
620         usbvision->tvnormId=*id;
621
622         mutex_lock(&usbvision->lock);
623         call_i2c_clients(usbvision, VIDIOC_S_STD,
624                          &usbvision->tvnormId);
625         mutex_unlock(&usbvision->lock);
626         /* propagate the change to the decoder */
627         usbvision_muxsel(usbvision, usbvision->ctl_input);
628
629         return 0;
630 }
631
632 static int vidioc_g_tuner (struct file *file, void *priv,
633                                 struct v4l2_tuner *vt)
634 {
635         struct usb_usbvision *usbvision = video_drvdata(file);
636
637         if (!usbvision->have_tuner || vt->index)        // Only tuner 0
638                 return -EINVAL;
639         if(usbvision->radio) {
640                 strcpy(vt->name, "Radio");
641                 vt->type = V4L2_TUNER_RADIO;
642         } else {
643                 strcpy(vt->name, "Television");
644         }
645         /* Let clients fill in the remainder of this struct */
646         call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
647
648         return 0;
649 }
650
651 static int vidioc_s_tuner (struct file *file, void *priv,
652                                 struct v4l2_tuner *vt)
653 {
654         struct usb_usbvision *usbvision = video_drvdata(file);
655
656         // Only no or one tuner for now
657         if (!usbvision->have_tuner || vt->index)
658                 return -EINVAL;
659         /* let clients handle this */
660         call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
661
662         return 0;
663 }
664
665 static int vidioc_g_frequency (struct file *file, void *priv,
666                                 struct v4l2_frequency *freq)
667 {
668         struct usb_usbvision *usbvision = video_drvdata(file);
669
670         freq->tuner = 0; // Only one tuner
671         if(usbvision->radio) {
672                 freq->type = V4L2_TUNER_RADIO;
673         } else {
674                 freq->type = V4L2_TUNER_ANALOG_TV;
675         }
676         freq->frequency = usbvision->freq;
677
678         return 0;
679 }
680
681 static int vidioc_s_frequency (struct file *file, void *priv,
682                                 struct v4l2_frequency *freq)
683 {
684         struct usb_usbvision *usbvision = video_drvdata(file);
685
686         // Only no or one tuner for now
687         if (!usbvision->have_tuner || freq->tuner)
688                 return -EINVAL;
689
690         usbvision->freq = freq->frequency;
691         call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
692
693         return 0;
694 }
695
696 static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
697 {
698         struct usb_usbvision *usbvision = video_drvdata(file);
699
700         memset(a,0,sizeof(*a));
701         if(usbvision->radio) {
702                 strcpy(a->name,"Radio");
703         } else {
704                 strcpy(a->name, "TV");
705         }
706
707         return 0;
708 }
709
710 static int vidioc_s_audio (struct file *file, void *fh,
711                           struct v4l2_audio *a)
712 {
713         if(a->index) {
714                 return -EINVAL;
715         }
716
717         return 0;
718 }
719
720 static int vidioc_queryctrl (struct file *file, void *priv,
721                             struct v4l2_queryctrl *ctrl)
722 {
723         struct usb_usbvision *usbvision = video_drvdata(file);
724         int id=ctrl->id;
725
726         memset(ctrl,0,sizeof(*ctrl));
727         ctrl->id=id;
728
729         call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
730
731         if (!ctrl->type)
732                 return -EINVAL;
733
734         return 0;
735 }
736
737 static int vidioc_g_ctrl (struct file *file, void *priv,
738                                 struct v4l2_control *ctrl)
739 {
740         struct usb_usbvision *usbvision = video_drvdata(file);
741         call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
742
743         return 0;
744 }
745
746 static int vidioc_s_ctrl (struct file *file, void *priv,
747                                 struct v4l2_control *ctrl)
748 {
749         struct usb_usbvision *usbvision = video_drvdata(file);
750         call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
751
752         return 0;
753 }
754
755 static int vidioc_reqbufs (struct file *file,
756                            void *priv, struct v4l2_requestbuffers *vr)
757 {
758         struct usb_usbvision *usbvision = video_drvdata(file);
759         int ret;
760
761         RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
762
763         /* Check input validity:
764            the user must do a VIDEO CAPTURE and MMAP method. */
765         if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
766            (vr->memory != V4L2_MEMORY_MMAP))
767                 return -EINVAL;
768
769         if(usbvision->streaming == Stream_On) {
770                 if ((ret = usbvision_stream_interrupt(usbvision)))
771                         return ret;
772         }
773
774         usbvision_frames_free(usbvision);
775         usbvision_empty_framequeues(usbvision);
776         vr->count = usbvision_frames_alloc(usbvision,vr->count);
777
778         usbvision->curFrame = NULL;
779
780         return 0;
781 }
782
783 static int vidioc_querybuf (struct file *file,
784                             void *priv, struct v4l2_buffer *vb)
785 {
786         struct usb_usbvision *usbvision = video_drvdata(file);
787         struct usbvision_frame *frame;
788
789         /* FIXME : must control
790            that buffers are mapped (VIDIOC_REQBUFS has been called) */
791         if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
792                 return -EINVAL;
793         }
794         if(vb->index>=usbvision->num_frames)  {
795                 return -EINVAL;
796         }
797         /* Updating the corresponding frame state */
798         vb->flags = 0;
799         frame = &usbvision->frame[vb->index];
800         if(frame->grabstate >= FrameState_Ready)
801                 vb->flags |= V4L2_BUF_FLAG_QUEUED;
802         if(frame->grabstate >= FrameState_Done)
803                 vb->flags |= V4L2_BUF_FLAG_DONE;
804         if(frame->grabstate == FrameState_Unused)
805                 vb->flags |= V4L2_BUF_FLAG_MAPPED;
806         vb->memory = V4L2_MEMORY_MMAP;
807
808         vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
809
810         vb->memory = V4L2_MEMORY_MMAP;
811         vb->field = V4L2_FIELD_NONE;
812         vb->length = usbvision->curwidth*
813                 usbvision->curheight*
814                 usbvision->palette.bytes_per_pixel;
815         vb->timestamp = usbvision->frame[vb->index].timestamp;
816         vb->sequence = usbvision->frame[vb->index].sequence;
817         return 0;
818 }
819
820 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
821 {
822         struct usb_usbvision *usbvision = video_drvdata(file);
823         struct usbvision_frame *frame;
824         unsigned long lock_flags;
825
826         /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
827         if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
828                 return -EINVAL;
829         }
830         if(vb->index>=usbvision->num_frames)  {
831                 return -EINVAL;
832         }
833
834         frame = &usbvision->frame[vb->index];
835
836         if (frame->grabstate != FrameState_Unused) {
837                 return -EAGAIN;
838         }
839
840         /* Mark it as ready and enqueue frame */
841         frame->grabstate = FrameState_Ready;
842         frame->scanstate = ScanState_Scanning;
843         frame->scanlength = 0;  /* Accumulated in usbvision_parse_data() */
844
845         vb->flags &= ~V4L2_BUF_FLAG_DONE;
846
847         /* set v4l2_format index */
848         frame->v4l2_format = usbvision->palette;
849
850         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
851         list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
852         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
853
854         return 0;
855 }
856
857 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
858 {
859         struct usb_usbvision *usbvision = video_drvdata(file);
860         int ret;
861         struct usbvision_frame *f;
862         unsigned long lock_flags;
863
864         if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
865                 return -EINVAL;
866
867         if (list_empty(&(usbvision->outqueue))) {
868                 if (usbvision->streaming == Stream_Idle)
869                         return -EINVAL;
870                 ret = wait_event_interruptible
871                         (usbvision->wait_frame,
872                          !list_empty(&(usbvision->outqueue)));
873                 if (ret)
874                         return ret;
875         }
876
877         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
878         f = list_entry(usbvision->outqueue.next,
879                        struct usbvision_frame, frame);
880         list_del(usbvision->outqueue.next);
881         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
882
883         f->grabstate = FrameState_Unused;
884
885         vb->memory = V4L2_MEMORY_MMAP;
886         vb->flags = V4L2_BUF_FLAG_MAPPED |
887                 V4L2_BUF_FLAG_QUEUED |
888                 V4L2_BUF_FLAG_DONE;
889         vb->index = f->index;
890         vb->sequence = f->sequence;
891         vb->timestamp = f->timestamp;
892         vb->field = V4L2_FIELD_NONE;
893         vb->bytesused = f->scanlength;
894
895         return 0;
896 }
897
898 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
899 {
900         struct usb_usbvision *usbvision = video_drvdata(file);
901         int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
902
903         usbvision->streaming = Stream_On;
904         call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
905
906         return 0;
907 }
908
909 static int vidioc_streamoff(struct file *file,
910                             void *priv, enum v4l2_buf_type type)
911 {
912         struct usb_usbvision *usbvision = video_drvdata(file);
913         int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
914
915         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
916                 return -EINVAL;
917
918         if(usbvision->streaming == Stream_On) {
919                 usbvision_stream_interrupt(usbvision);
920                 /* Stop all video streamings */
921                 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
922         }
923         usbvision_empty_framequeues(usbvision);
924
925         return 0;
926 }
927
928 static int vidioc_enum_fmt_vid_cap (struct file *file, void  *priv,
929                                         struct v4l2_fmtdesc *vfd)
930 {
931         if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
932                 return -EINVAL;
933         }
934         vfd->flags = 0;
935         vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
936         strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
937         vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
938         memset(vfd->reserved, 0, sizeof(vfd->reserved));
939         return 0;
940 }
941
942 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
943                                         struct v4l2_format *vf)
944 {
945         struct usb_usbvision *usbvision = video_drvdata(file);
946         vf->fmt.pix.width = usbvision->curwidth;
947         vf->fmt.pix.height = usbvision->curheight;
948         vf->fmt.pix.pixelformat = usbvision->palette.format;
949         vf->fmt.pix.bytesperline =
950                 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
951         vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
952         vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
953         vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
954
955         return 0;
956 }
957
958 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
959                                struct v4l2_format *vf)
960 {
961         struct usb_usbvision *usbvision = video_drvdata(file);
962         int formatIdx;
963
964         /* Find requested format in available ones */
965         for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
966                 if(vf->fmt.pix.pixelformat ==
967                    usbvision_v4l2_format[formatIdx].format) {
968                         usbvision->palette = usbvision_v4l2_format[formatIdx];
969                         break;
970                 }
971         }
972         /* robustness */
973         if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
974                 return -EINVAL;
975         }
976         RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
977         RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
978
979         vf->fmt.pix.bytesperline = vf->fmt.pix.width*
980                 usbvision->palette.bytes_per_pixel;
981         vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
982
983         return 0;
984 }
985
986 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
987                                struct v4l2_format *vf)
988 {
989         struct usb_usbvision *usbvision = video_drvdata(file);
990         int ret;
991
992         if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
993                 return ret;
994         }
995
996         /* stop io in case it is already in progress */
997         if(usbvision->streaming == Stream_On) {
998                 if ((ret = usbvision_stream_interrupt(usbvision)))
999                         return ret;
1000         }
1001         usbvision_frames_free(usbvision);
1002         usbvision_empty_framequeues(usbvision);
1003
1004         usbvision->curFrame = NULL;
1005
1006         /* by now we are committed to the new data... */
1007         mutex_lock(&usbvision->lock);
1008         usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1009         mutex_unlock(&usbvision->lock);
1010
1011         return 0;
1012 }
1013
1014 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1015                       size_t count, loff_t *ppos)
1016 {
1017         struct usb_usbvision *usbvision = video_drvdata(file);
1018         int noblock = file->f_flags & O_NONBLOCK;
1019         unsigned long lock_flags;
1020
1021         int ret,i;
1022         struct usbvision_frame *frame;
1023
1024         PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
1025                (unsigned long)count, noblock);
1026
1027         if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1028                 return -EFAULT;
1029
1030         /* This entry point is compatible with the mmap routines
1031            so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1032            to get frames or call read on the device. */
1033         if(!usbvision->num_frames) {
1034                 /* First, allocate some frames to work with
1035                    if this has not been done with VIDIOC_REQBUF */
1036                 usbvision_frames_free(usbvision);
1037                 usbvision_empty_framequeues(usbvision);
1038                 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1039         }
1040
1041         if(usbvision->streaming != Stream_On) {
1042                 /* no stream is running, make it running ! */
1043                 usbvision->streaming = Stream_On;
1044                 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1045         }
1046
1047         /* Then, enqueue as many frames as possible
1048            (like a user of VIDIOC_QBUF would do) */
1049         for(i=0;i<usbvision->num_frames;i++) {
1050                 frame = &usbvision->frame[i];
1051                 if(frame->grabstate == FrameState_Unused) {
1052                         /* Mark it as ready and enqueue frame */
1053                         frame->grabstate = FrameState_Ready;
1054                         frame->scanstate = ScanState_Scanning;
1055                         /* Accumulated in usbvision_parse_data() */
1056                         frame->scanlength = 0;
1057
1058                         /* set v4l2_format index */
1059                         frame->v4l2_format = usbvision->palette;
1060
1061                         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1062                         list_add_tail(&frame->frame, &usbvision->inqueue);
1063                         spin_unlock_irqrestore(&usbvision->queue_lock,
1064                                                lock_flags);
1065                 }
1066         }
1067
1068         /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1069         if (list_empty(&(usbvision->outqueue))) {
1070                 if(noblock)
1071                         return -EAGAIN;
1072
1073                 ret = wait_event_interruptible
1074                         (usbvision->wait_frame,
1075                          !list_empty(&(usbvision->outqueue)));
1076                 if (ret)
1077                         return ret;
1078         }
1079
1080         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1081         frame = list_entry(usbvision->outqueue.next,
1082                            struct usbvision_frame, frame);
1083         list_del(usbvision->outqueue.next);
1084         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1085
1086         /* An error returns an empty frame */
1087         if (frame->grabstate == FrameState_Error) {
1088                 frame->bytes_read = 0;
1089                 return 0;
1090         }
1091
1092         PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1093                __func__,
1094                frame->index, frame->bytes_read, frame->scanlength);
1095
1096         /* copy bytes to user space; we allow for partials reads */
1097         if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1098                 count = frame->scanlength - frame->bytes_read;
1099
1100         if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1101                 return -EFAULT;
1102         }
1103
1104         frame->bytes_read += count;
1105         PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
1106                __func__,
1107                (unsigned long)count, frame->bytes_read);
1108
1109         /* For now, forget the frame if it has not been read in one shot. */
1110 /*      if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1111                 frame->bytes_read = 0;
1112
1113                 /* Mark it as available to be used again. */
1114                 frame->grabstate = FrameState_Unused;
1115 /*      } */
1116
1117         return count;
1118 }
1119
1120 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1121 {
1122         unsigned long size = vma->vm_end - vma->vm_start,
1123                 start = vma->vm_start;
1124         void *pos;
1125         u32 i;
1126         struct usb_usbvision *usbvision = video_drvdata(file);
1127
1128         PDEBUG(DBG_MMAP, "mmap");
1129
1130         mutex_lock(&usbvision->lock);
1131
1132         if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1133                 mutex_unlock(&usbvision->lock);
1134                 return -EFAULT;
1135         }
1136
1137         if (!(vma->vm_flags & VM_WRITE) ||
1138             size != PAGE_ALIGN(usbvision->max_frame_size)) {
1139                 mutex_unlock(&usbvision->lock);
1140                 return -EINVAL;
1141         }
1142
1143         for (i = 0; i < usbvision->num_frames; i++) {
1144                 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1145                     vma->vm_pgoff)
1146                         break;
1147         }
1148         if (i == usbvision->num_frames) {
1149                 PDEBUG(DBG_MMAP,
1150                        "mmap: user supplied mapping address is out of range");
1151                 mutex_unlock(&usbvision->lock);
1152                 return -EINVAL;
1153         }
1154
1155         /* VM_IO is eventually going to replace PageReserved altogether */
1156         vma->vm_flags |= VM_IO;
1157         vma->vm_flags |= VM_RESERVED;   /* avoid to swap out this VMA */
1158
1159         pos = usbvision->frame[i].data;
1160         while (size > 0) {
1161
1162                 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1163                         PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1164                         mutex_unlock(&usbvision->lock);
1165                         return -EAGAIN;
1166                 }
1167                 start += PAGE_SIZE;
1168                 pos += PAGE_SIZE;
1169                 size -= PAGE_SIZE;
1170         }
1171
1172         mutex_unlock(&usbvision->lock);
1173         return 0;
1174 }
1175
1176
1177 /*
1178  * Here comes the stuff for radio on usbvision based devices
1179  *
1180  */
1181 static int usbvision_radio_open(struct inode *inode, struct file *file)
1182 {
1183         struct usb_usbvision *usbvision = video_drvdata(file);
1184         int errCode = 0;
1185
1186         PDEBUG(DBG_IO, "%s:", __func__);
1187
1188         mutex_lock(&usbvision->lock);
1189
1190         if (usbvision->user) {
1191                 err("%s: Someone tried to open an already opened USBVision Radio!", __func__);
1192                 errCode = -EBUSY;
1193         }
1194         else {
1195                 if(PowerOnAtOpen) {
1196                         usbvision_reset_powerOffTimer(usbvision);
1197                         if (usbvision->power == 0) {
1198                                 usbvision_power_on(usbvision);
1199                                 usbvision_i2c_register(usbvision);
1200                         }
1201                 }
1202
1203                 /* Alternate interface 1 is is the biggest frame size */
1204                 errCode = usbvision_set_alternate(usbvision);
1205                 if (errCode < 0) {
1206                         usbvision->last_error = errCode;
1207                         errCode = -EBUSY;
1208                         goto out;
1209                 }
1210
1211                 // If so far no errors then we shall start the radio
1212                 usbvision->radio = 1;
1213                 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1214                 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1215                 usbvision->user++;
1216         }
1217
1218         if (errCode) {
1219                 if (PowerOnAtOpen) {
1220                         usbvision_i2c_unregister(usbvision);
1221                         usbvision_power_off(usbvision);
1222                         usbvision->initialized = 0;
1223                 }
1224         }
1225 out:
1226         mutex_unlock(&usbvision->lock);
1227         return errCode;
1228 }
1229
1230
1231 static int usbvision_radio_close(struct inode *inode, struct file *file)
1232 {
1233         struct usb_usbvision *usbvision = video_drvdata(file);
1234         int errCode = 0;
1235
1236         PDEBUG(DBG_IO, "");
1237
1238         mutex_lock(&usbvision->lock);
1239
1240         /* Set packet size to 0 */
1241         usbvision->ifaceAlt=0;
1242         errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1243                                     usbvision->ifaceAlt);
1244
1245         usbvision_audio_off(usbvision);
1246         usbvision->radio=0;
1247         usbvision->user--;
1248
1249         if (PowerOnAtOpen) {
1250                 usbvision_set_powerOffTimer(usbvision);
1251                 usbvision->initialized = 0;
1252         }
1253
1254         mutex_unlock(&usbvision->lock);
1255
1256         if (usbvision->remove_pending) {
1257                 printk(KERN_INFO "%s: Final disconnect\n", __func__);
1258                 usbvision_release(usbvision);
1259         }
1260
1261         PDEBUG(DBG_IO, "success");
1262         return errCode;
1263 }
1264
1265 /*
1266  * Here comes the stuff for vbi on usbvision based devices
1267  *
1268  */
1269 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1270 {
1271         /* TODO */
1272         return -ENODEV;
1273 }
1274
1275 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1276 {
1277         /* TODO */
1278         return -ENODEV;
1279 }
1280
1281 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1282                                  unsigned int cmd, void *arg)
1283 {
1284         /* TODO */
1285         return -ENOIOCTLCMD;
1286 }
1287
1288 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1289                        unsigned int cmd, unsigned long arg)
1290 {
1291         return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1292 }
1293
1294
1295 //
1296 // Video registration stuff
1297 //
1298
1299 // Video template
1300 static const struct file_operations usbvision_fops = {
1301         .owner             = THIS_MODULE,
1302         .open           = usbvision_v4l2_open,
1303         .release        = usbvision_v4l2_close,
1304         .read           = usbvision_v4l2_read,
1305         .mmap           = usbvision_v4l2_mmap,
1306         .ioctl          = video_ioctl2,
1307         .llseek         = no_llseek,
1308 /*      .poll          = video_poll, */
1309         .compat_ioctl  = v4l_compat_ioctl32,
1310 };
1311
1312 static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
1313         .vidioc_querycap      = vidioc_querycap,
1314         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1315         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1316         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1317         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1318         .vidioc_reqbufs       = vidioc_reqbufs,
1319         .vidioc_querybuf      = vidioc_querybuf,
1320         .vidioc_qbuf          = vidioc_qbuf,
1321         .vidioc_dqbuf         = vidioc_dqbuf,
1322         .vidioc_s_std         = vidioc_s_std,
1323         .vidioc_enum_input    = vidioc_enum_input,
1324         .vidioc_g_input       = vidioc_g_input,
1325         .vidioc_s_input       = vidioc_s_input,
1326         .vidioc_queryctrl     = vidioc_queryctrl,
1327         .vidioc_g_audio       = vidioc_g_audio,
1328         .vidioc_s_audio       = vidioc_s_audio,
1329         .vidioc_g_ctrl        = vidioc_g_ctrl,
1330         .vidioc_s_ctrl        = vidioc_s_ctrl,
1331         .vidioc_streamon      = vidioc_streamon,
1332         .vidioc_streamoff     = vidioc_streamoff,
1333 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1334 /*      .vidiocgmbuf          = vidiocgmbuf, */
1335 #endif
1336         .vidioc_g_tuner       = vidioc_g_tuner,
1337         .vidioc_s_tuner       = vidioc_s_tuner,
1338         .vidioc_g_frequency   = vidioc_g_frequency,
1339         .vidioc_s_frequency   = vidioc_s_frequency,
1340 #ifdef CONFIG_VIDEO_ADV_DEBUG
1341         .vidioc_g_register    = vidioc_g_register,
1342         .vidioc_s_register    = vidioc_s_register,
1343 #endif
1344 };
1345
1346 static struct video_device usbvision_video_template = {
1347         .fops           = &usbvision_fops,
1348         .ioctl_ops      = &usbvision_ioctl_ops,
1349         .name           = "usbvision-video",
1350         .release        = video_device_release,
1351         .minor          = -1,
1352         .tvnorms              = USBVISION_NORMS,
1353         .current_norm         = V4L2_STD_PAL
1354 };
1355
1356
1357 // Radio template
1358 static const struct file_operations usbvision_radio_fops = {
1359         .owner             = THIS_MODULE,
1360         .open           = usbvision_radio_open,
1361         .release        = usbvision_radio_close,
1362         .ioctl          = video_ioctl2,
1363         .llseek         = no_llseek,
1364         .compat_ioctl  = v4l_compat_ioctl32,
1365 };
1366
1367 static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = {
1368         .vidioc_querycap      = vidioc_querycap,
1369         .vidioc_enum_input    = vidioc_enum_input,
1370         .vidioc_g_input       = vidioc_g_input,
1371         .vidioc_s_input       = vidioc_s_input,
1372         .vidioc_queryctrl     = vidioc_queryctrl,
1373         .vidioc_g_audio       = vidioc_g_audio,
1374         .vidioc_s_audio       = vidioc_s_audio,
1375         .vidioc_g_ctrl        = vidioc_g_ctrl,
1376         .vidioc_s_ctrl        = vidioc_s_ctrl,
1377         .vidioc_g_tuner       = vidioc_g_tuner,
1378         .vidioc_s_tuner       = vidioc_s_tuner,
1379         .vidioc_g_frequency   = vidioc_g_frequency,
1380         .vidioc_s_frequency   = vidioc_s_frequency,
1381 };
1382
1383 static struct video_device usbvision_radio_template = {
1384         .fops           = &usbvision_radio_fops,
1385         .name           = "usbvision-radio",
1386         .release        = video_device_release,
1387         .minor          = -1,
1388         .ioctl_ops      = &usbvision_radio_ioctl_ops,
1389
1390         .tvnorms              = USBVISION_NORMS,
1391         .current_norm         = V4L2_STD_PAL
1392 };
1393
1394 // vbi template
1395 static const struct file_operations usbvision_vbi_fops = {
1396         .owner             = THIS_MODULE,
1397         .open           = usbvision_vbi_open,
1398         .release        = usbvision_vbi_close,
1399         .ioctl          = usbvision_vbi_ioctl,
1400         .llseek         = no_llseek,
1401         .compat_ioctl  = v4l_compat_ioctl32,
1402 };
1403
1404 static struct video_device usbvision_vbi_template=
1405 {
1406         .fops           = &usbvision_vbi_fops,
1407         .release        = video_device_release,
1408         .name           = "usbvision-vbi",
1409         .minor          = -1,
1410 };
1411
1412
1413 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1414                                         struct video_device *vdev_template,
1415                                         char *name)
1416 {
1417         struct usb_device *usb_dev = usbvision->dev;
1418         struct video_device *vdev;
1419
1420         if (usb_dev == NULL) {
1421                 err("%s: usbvision->dev is not set", __func__);
1422                 return NULL;
1423         }
1424
1425         vdev = video_device_alloc();
1426         if (NULL == vdev) {
1427                 return NULL;
1428         }
1429         *vdev = *vdev_template;
1430 //      vdev->minor   = -1;
1431         vdev->parent  = &usb_dev->dev;
1432         snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1433         video_set_drvdata(vdev, usbvision);
1434         return vdev;
1435 }
1436
1437 // unregister video4linux devices
1438 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1439 {
1440         // vbi Device:
1441         if (usbvision->vbi) {
1442                 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1443                        usbvision->vbi->minor & 0x1f);
1444                 if (usbvision->vbi->minor != -1) {
1445                         video_unregister_device(usbvision->vbi);
1446                 } else {
1447                         video_device_release(usbvision->vbi);
1448                 }
1449                 usbvision->vbi = NULL;
1450         }
1451
1452         // Radio Device:
1453         if (usbvision->rdev) {
1454                 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1455                        usbvision->rdev->minor & 0x1f);
1456                 if (usbvision->rdev->minor != -1) {
1457                         video_unregister_device(usbvision->rdev);
1458                 } else {
1459                         video_device_release(usbvision->rdev);
1460                 }
1461                 usbvision->rdev = NULL;
1462         }
1463
1464         // Video Device:
1465         if (usbvision->vdev) {
1466                 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1467                        usbvision->vdev->minor & 0x1f);
1468                 if (usbvision->vdev->minor != -1) {
1469                         video_unregister_device(usbvision->vdev);
1470                 } else {
1471                         video_device_release(usbvision->vdev);
1472                 }
1473                 usbvision->vdev = NULL;
1474         }
1475 }
1476
1477 // register video4linux devices
1478 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1479 {
1480         // Video Device:
1481         usbvision->vdev = usbvision_vdev_init(usbvision,
1482                                               &usbvision_video_template,
1483                                               "USBVision Video");
1484         if (usbvision->vdev == NULL) {
1485                 goto err_exit;
1486         }
1487         if (video_register_device(usbvision->vdev,
1488                                   VFL_TYPE_GRABBER,
1489                                   video_nr)<0) {
1490                 goto err_exit;
1491         }
1492         printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1493                usbvision->nr,usbvision->vdev->minor & 0x1f);
1494
1495         // Radio Device:
1496         if (usbvision_device_data[usbvision->DevModel].Radio) {
1497                 // usbvision has radio
1498                 usbvision->rdev = usbvision_vdev_init(usbvision,
1499                                                       &usbvision_radio_template,
1500                                                       "USBVision Radio");
1501                 if (usbvision->rdev == NULL) {
1502                         goto err_exit;
1503                 }
1504                 if (video_register_device(usbvision->rdev,
1505                                           VFL_TYPE_RADIO,
1506                                           radio_nr)<0) {
1507                         goto err_exit;
1508                 }
1509                 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1510                        usbvision->nr, usbvision->rdev->minor & 0x1f);
1511         }
1512         // vbi Device:
1513         if (usbvision_device_data[usbvision->DevModel].vbi) {
1514                 usbvision->vbi = usbvision_vdev_init(usbvision,
1515                                                      &usbvision_vbi_template,
1516                                                      "USBVision VBI");
1517                 if (usbvision->vdev == NULL) {
1518                         goto err_exit;
1519                 }
1520                 if (video_register_device(usbvision->vbi,
1521                                           VFL_TYPE_VBI,
1522                                           vbi_nr)<0) {
1523                         goto err_exit;
1524                 }
1525                 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1526                        usbvision->nr,usbvision->vbi->minor & 0x1f);
1527         }
1528         // all done
1529         return 0;
1530
1531  err_exit:
1532         err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1533         usbvision_unregister_video(usbvision);
1534         return -1;
1535 }
1536
1537 /*
1538  * usbvision_alloc()
1539  *
1540  * This code allocates the struct usb_usbvision.
1541  * It is filled with default values.
1542  *
1543  * Returns NULL on error, a pointer to usb_usbvision else.
1544  *
1545  */
1546 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1547 {
1548         struct usb_usbvision *usbvision;
1549
1550         if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1551             NULL) {
1552                 goto err_exit;
1553         }
1554
1555         usbvision->dev = dev;
1556
1557         mutex_init(&usbvision->lock);   /* available */
1558
1559         // prepare control urb for control messages during interrupts
1560         usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1561         if (usbvision->ctrlUrb == NULL) {
1562                 goto err_exit;
1563         }
1564         init_waitqueue_head(&usbvision->ctrlUrb_wq);
1565
1566         usbvision_init_powerOffTimer(usbvision);
1567
1568         return usbvision;
1569
1570 err_exit:
1571         if (usbvision && usbvision->ctrlUrb) {
1572                 usb_free_urb(usbvision->ctrlUrb);
1573         }
1574         if (usbvision) {
1575                 kfree(usbvision);
1576         }
1577         return NULL;
1578 }
1579
1580 /*
1581  * usbvision_release()
1582  *
1583  * This code does final release of struct usb_usbvision. This happens
1584  * after the device is disconnected -and- all clients closed their files.
1585  *
1586  */
1587 static void usbvision_release(struct usb_usbvision *usbvision)
1588 {
1589         PDEBUG(DBG_PROBE, "");
1590
1591         mutex_lock(&usbvision->lock);
1592
1593         usbvision_reset_powerOffTimer(usbvision);
1594
1595         usbvision->initialized = 0;
1596
1597         mutex_unlock(&usbvision->lock);
1598
1599         usbvision_remove_sysfs(usbvision->vdev);
1600         usbvision_unregister_video(usbvision);
1601
1602         if (usbvision->ctrlUrb) {
1603                 usb_free_urb(usbvision->ctrlUrb);
1604         }
1605
1606         kfree(usbvision);
1607
1608         PDEBUG(DBG_PROBE, "success");
1609 }
1610
1611
1612 /*********************** usb interface **********************************/
1613
1614 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1615 {
1616         int model;
1617
1618         if (usbvision == NULL)
1619                 return;
1620
1621         model = usbvision->DevModel;
1622         usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1623
1624         if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1625                 usbvision->Vin_Reg2_Preset =
1626                         usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1627         } else {
1628                 usbvision->Vin_Reg2_Preset = 0;
1629         }
1630
1631         usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1632
1633         usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1634         usbvision->ctl_input = 0;
1635
1636         /* This should be here to make i2c clients to be able to register */
1637         /* first switch off audio */
1638         usbvision_audio_off(usbvision);
1639         if (!PowerOnAtOpen) {
1640                 /* and then power up the noisy tuner */
1641                 usbvision_power_on(usbvision);
1642                 usbvision_i2c_register(usbvision);
1643         }
1644 }
1645
1646 /*
1647  * usbvision_probe()
1648  *
1649  * This procedure queries device descriptor and accepts the interface
1650  * if it looks like USBVISION video device
1651  *
1652  */
1653 static int __devinit usbvision_probe(struct usb_interface *intf,
1654                                      const struct usb_device_id *devid)
1655 {
1656         struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1657         struct usb_interface *uif;
1658         __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1659         const struct usb_host_interface *interface;
1660         struct usb_usbvision *usbvision = NULL;
1661         const struct usb_endpoint_descriptor *endpoint;
1662         int model,i;
1663
1664         PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1665                                 dev->descriptor.idVendor,
1666                                 dev->descriptor.idProduct, ifnum);
1667
1668         model = devid->driver_info;
1669         if ( (model<0) || (model>=usbvision_device_data_size) ) {
1670                 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1671                 return -ENODEV;
1672         }
1673         printk(KERN_INFO "%s: %s found\n", __func__,
1674                                 usbvision_device_data[model].ModelString);
1675
1676         if (usbvision_device_data[model].Interface >= 0) {
1677                 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1678         } else {
1679                 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1680         }
1681         endpoint = &interface->endpoint[1].desc;
1682         if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1683             USB_ENDPOINT_XFER_ISOC) {
1684                 err("%s: interface %d. has non-ISO endpoint!",
1685                     __func__, ifnum);
1686                 err("%s: Endpoint attributes %d",
1687                     __func__, endpoint->bmAttributes);
1688                 return -ENODEV;
1689         }
1690         if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1691             USB_DIR_OUT) {
1692                 err("%s: interface %d. has ISO OUT endpoint!",
1693                     __func__, ifnum);
1694                 return -ENODEV;
1695         }
1696
1697         if ((usbvision = usbvision_alloc(dev)) == NULL) {
1698                 err("%s: couldn't allocate USBVision struct", __func__);
1699                 return -ENOMEM;
1700         }
1701
1702         if (dev->descriptor.bNumConfigurations > 1) {
1703                 usbvision->bridgeType = BRIDGE_NT1004;
1704         } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1705                 usbvision->bridgeType = BRIDGE_NT1005;
1706         } else {
1707                 usbvision->bridgeType = BRIDGE_NT1003;
1708         }
1709         PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1710
1711         mutex_lock(&usbvision->lock);
1712
1713         /* compute alternate max packet sizes */
1714         uif = dev->actconfig->interface[0];
1715
1716         usbvision->num_alt=uif->num_altsetting;
1717         PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1718         usbvision->alt_max_pkt_size = kmalloc(32*
1719                                               usbvision->num_alt,GFP_KERNEL);
1720         if (usbvision->alt_max_pkt_size == NULL) {
1721                 err("usbvision: out of memory!\n");
1722                 mutex_unlock(&usbvision->lock);
1723                 return -ENOMEM;
1724         }
1725
1726         for (i = 0; i < usbvision->num_alt ; i++) {
1727                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1728                                       wMaxPacketSize);
1729                 usbvision->alt_max_pkt_size[i] =
1730                         (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1731                 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1732                        usbvision->alt_max_pkt_size[i]);
1733         }
1734
1735
1736         usbvision->nr = usbvision_nr++;
1737
1738         usbvision->have_tuner = usbvision_device_data[model].Tuner;
1739         if (usbvision->have_tuner) {
1740                 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1741         }
1742
1743         usbvision->tuner_addr = ADDR_UNSET;
1744
1745         usbvision->DevModel = model;
1746         usbvision->remove_pending = 0;
1747         usbvision->iface = ifnum;
1748         usbvision->ifaceAlt = 0;
1749         usbvision->video_endp = endpoint->bEndpointAddress;
1750         usbvision->isocPacketSize = 0;
1751         usbvision->usb_bandwidth = 0;
1752         usbvision->user = 0;
1753         usbvision->streaming = Stream_Off;
1754         usbvision_register_video(usbvision);
1755         usbvision_configure_video(usbvision);
1756         mutex_unlock(&usbvision->lock);
1757
1758
1759         usb_set_intfdata (intf, usbvision);
1760         usbvision_create_sysfs(usbvision->vdev);
1761
1762         PDEBUG(DBG_PROBE, "success");
1763         return 0;
1764 }
1765
1766
1767 /*
1768  * usbvision_disconnect()
1769  *
1770  * This procedure stops all driver activity, deallocates interface-private
1771  * structure (pointed by 'ptr') and after that driver should be removable
1772  * with no ill consequences.
1773  *
1774  */
1775 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1776 {
1777         struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1778
1779         PDEBUG(DBG_PROBE, "");
1780
1781         if (usbvision == NULL) {
1782                 err("%s: usb_get_intfdata() failed", __func__);
1783                 return;
1784         }
1785         usb_set_intfdata (intf, NULL);
1786
1787         mutex_lock(&usbvision->lock);
1788
1789         // At this time we ask to cancel outstanding URBs
1790         usbvision_stop_isoc(usbvision);
1791
1792         if (usbvision->power) {
1793                 usbvision_i2c_unregister(usbvision);
1794                 usbvision_power_off(usbvision);
1795         }
1796         usbvision->remove_pending = 1;  // Now all ISO data will be ignored
1797
1798         usb_put_dev(usbvision->dev);
1799         usbvision->dev = NULL;  // USB device is no more
1800
1801         mutex_unlock(&usbvision->lock);
1802
1803         if (usbvision->user) {
1804                 printk(KERN_INFO "%s: In use, disconnect pending\n",
1805                        __func__);
1806                 wake_up_interruptible(&usbvision->wait_frame);
1807                 wake_up_interruptible(&usbvision->wait_stream);
1808         } else {
1809                 usbvision_release(usbvision);
1810         }
1811
1812         PDEBUG(DBG_PROBE, "success");
1813 }
1814
1815 static struct usb_driver usbvision_driver = {
1816         .name           = "usbvision",
1817         .id_table       = usbvision_table,
1818         .probe          = usbvision_probe,
1819         .disconnect     = usbvision_disconnect
1820 };
1821
1822 /*
1823  * usbvision_init()
1824  *
1825  * This code is run to initialize the driver.
1826  *
1827  */
1828 static int __init usbvision_init(void)
1829 {
1830         int errCode;
1831
1832         PDEBUG(DBG_PROBE, "");
1833
1834         PDEBUG(DBG_IO,  "IO      debugging is enabled [video]");
1835         PDEBUG(DBG_PROBE, "PROBE   debugging is enabled [video]");
1836         PDEBUG(DBG_MMAP, "MMAP    debugging is enabled [video]");
1837
1838         /* disable planar mode support unless compression enabled */
1839         if (isocMode != ISOC_MODE_COMPRESS ) {
1840                 // FIXME : not the right way to set supported flag
1841                 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1842                 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1843         }
1844
1845         errCode = usb_register(&usbvision_driver);
1846
1847         if (errCode == 0) {
1848                 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
1849                 PDEBUG(DBG_PROBE, "success");
1850         }
1851         return errCode;
1852 }
1853
1854 static void __exit usbvision_exit(void)
1855 {
1856  PDEBUG(DBG_PROBE, "");
1857
1858  usb_deregister(&usbvision_driver);
1859  PDEBUG(DBG_PROBE, "success");
1860 }
1861
1862 module_init(usbvision_init);
1863 module_exit(usbvision_exit);
1864
1865 /*
1866  * Overrides for Emacs so that we follow Linus's tabbing style.
1867  * ---------------------------------------------------------------------------
1868  * Local variables:
1869  * c-basic-offset: 8
1870  * End:
1871  */