2 * USB USBVISION Video device driver 0.9.9
6 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
8 * This module is part of usbvision driver project.
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.
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.
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.
24 * Let's call the version 0.... until compression decoding is completely
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
36 * - use submit_urb for all setup packets
37 * - Fix memory settings for nt1004. It is 4 times as big as the
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
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>
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>
61 #include <linux/videodev2.h>
62 #include <linux/video_decoder.h>
63 #include <linux/i2c.h>
65 #include <media/saa7115.h>
66 #include <media/v4l2-common.h>
67 #include <media/v4l2-ioctl.h>
68 #include <media/tuner.h>
70 #include <linux/workqueue.h>
72 #include "usbvision.h"
73 #include "usbvision-cards.h"
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)
91 #define ENABLE_HEXDUMP 0 /* Enable if you need it */
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); \
101 #define PDEBUG(level, fmt, args...) do {} while(0)
105 #define DBG_PROBE 1<<2
106 #define DBG_MMAP 1<<3
109 #define rmspace(str) while(*str==' ') str++;
110 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
113 /* sequential number of usbvision device */
114 static int usbvision_nr
;
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" }
127 /* Function prototypes */
128 static void usbvision_release(struct usb_usbvision
*usbvision
);
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;
144 /* Grab parameters for the device driver */
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);
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)");
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
);
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 /*****************************************************************************/
178 #define YES_NO(x) ((x) ? "Yes" : "No")
180 static inline struct usb_usbvision
*cd_to_usbvision(struct device
*cd
)
182 struct video_device
*vdev
=
183 container_of(cd
, struct video_device
, dev
);
184 return video_get_drvdata(vdev
);
187 static ssize_t
show_version(struct device
*cd
,
188 struct device_attribute
*attr
, char *buf
)
190 return sprintf(buf
, "%s\n", USBVISION_VERSION_STRING
);
192 static DEVICE_ATTR(version
, S_IRUGO
, show_version
, NULL
);
194 static ssize_t
show_model(struct device
*cd
,
195 struct device_attribute
*attr
, char *buf
)
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
);
203 static DEVICE_ATTR(model
, S_IRUGO
, show_model
, NULL
);
205 static ssize_t
show_hue(struct device
*cd
,
206 struct device_attribute
*attr
, char *buf
)
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
;
215 call_i2c_clients(usbvision
, VIDIOC_G_CTRL
, &ctrl
);
216 return sprintf(buf
, "%d\n", ctrl
.value
);
218 static DEVICE_ATTR(hue
, S_IRUGO
, show_hue
, NULL
);
220 static ssize_t
show_contrast(struct device
*cd
,
221 struct device_attribute
*attr
, char *buf
)
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
;
230 call_i2c_clients(usbvision
, VIDIOC_G_CTRL
, &ctrl
);
231 return sprintf(buf
, "%d\n", ctrl
.value
);
233 static DEVICE_ATTR(contrast
, S_IRUGO
, show_contrast
, NULL
);
235 static ssize_t
show_brightness(struct device
*cd
,
236 struct device_attribute
*attr
, char *buf
)
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
;
245 call_i2c_clients(usbvision
, VIDIOC_G_CTRL
, &ctrl
);
246 return sprintf(buf
, "%d\n", ctrl
.value
);
248 static DEVICE_ATTR(brightness
, S_IRUGO
, show_brightness
, NULL
);
250 static ssize_t
show_saturation(struct device
*cd
,
251 struct device_attribute
*attr
, char *buf
)
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
;
260 call_i2c_clients(usbvision
, VIDIOC_G_CTRL
, &ctrl
);
261 return sprintf(buf
, "%d\n", ctrl
.value
);
263 static DEVICE_ATTR(saturation
, S_IRUGO
, show_saturation
, NULL
);
265 static ssize_t
show_streaming(struct device
*cd
,
266 struct device_attribute
*attr
, char *buf
)
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));
274 static DEVICE_ATTR(streaming
, S_IRUGO
, show_streaming
, NULL
);
276 static ssize_t
show_compression(struct device
*cd
,
277 struct device_attribute
*attr
, char *buf
)
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
));
285 static DEVICE_ATTR(compression
, S_IRUGO
, show_compression
, NULL
);
287 static ssize_t
show_device_bridge(struct device
*cd
,
288 struct device_attribute
*attr
, char *buf
)
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
);
295 static DEVICE_ATTR(bridge
, S_IRUGO
, show_device_bridge
, NULL
);
297 static void usbvision_create_sysfs(struct video_device
*vdev
)
303 res
= device_create_file(&vdev
->dev
, &dev_attr_version
);
306 res
= device_create_file(&vdev
->dev
, &dev_attr_model
);
309 res
= device_create_file(&vdev
->dev
, &dev_attr_hue
);
312 res
= device_create_file(&vdev
->dev
, &dev_attr_contrast
);
315 res
= device_create_file(&vdev
->dev
, &dev_attr_brightness
);
318 res
= device_create_file(&vdev
->dev
, &dev_attr_saturation
);
321 res
= device_create_file(&vdev
->dev
, &dev_attr_streaming
);
324 res
= device_create_file(&vdev
->dev
, &dev_attr_compression
);
327 res
= device_create_file(&vdev
->dev
, &dev_attr_bridge
);
332 err("%s error: %d\n", __func__
, res
);
335 static void usbvision_remove_sysfs(struct video_device
*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
);
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.
358 static int usbvision_v4l2_open(struct file
*file
)
360 struct usb_usbvision
*usbvision
= video_drvdata(file
);
363 PDEBUG(DBG_IO
, "open");
366 usbvision_reset_powerOffTimer(usbvision
);
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
376 errCode
= usbvision_decompress_alloc(usbvision
);
379 /* Deallocate all buffers if trouble */
380 usbvision_scratch_free(usbvision
);
381 usbvision_decompress_free(usbvision
);
385 /* If so far no errors then we shall start the camera */
387 mutex_lock(&usbvision
->lock
);
388 if (usbvision
->power
== 0) {
389 usbvision_power_on(usbvision
);
390 usbvision_i2c_register(usbvision
);
393 /* Send init sequence only once, it's large! */
394 if (!usbvision
->initialized
) {
396 setup_ok
= usbvision_setup(usbvision
,isocMode
);
398 usbvision
->initialized
= 1;
404 usbvision_begin_streaming(usbvision
);
405 errCode
= usbvision_init_isoc(usbvision
);
406 /* device must be initialized before isoc transfer */
407 usbvision_muxsel(usbvision
,0);
411 usbvision_i2c_unregister(usbvision
);
412 usbvision_power_off(usbvision
);
413 usbvision
->initialized
= 0;
416 mutex_unlock(&usbvision
->lock
);
420 usbvision_empty_framequeues(usbvision
);
422 PDEBUG(DBG_IO
, "success");
428 * usbvision_v4l2_close()
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().
435 static int usbvision_v4l2_close(struct file
*file
)
437 struct usb_usbvision
*usbvision
= video_drvdata(file
);
439 PDEBUG(DBG_IO
, "close");
440 mutex_lock(&usbvision
->lock
);
442 usbvision_audio_off(usbvision
);
443 usbvision_restart_isoc(usbvision
);
444 usbvision_stop_isoc(usbvision
);
446 usbvision_decompress_free(usbvision
);
447 usbvision_frames_free(usbvision
);
448 usbvision_empty_framequeues(usbvision
);
449 usbvision_scratch_free(usbvision
);
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;
460 mutex_unlock(&usbvision
->lock
);
462 if (usbvision
->remove_pending
) {
463 printk(KERN_INFO
"%s: Final disconnect\n", __func__
);
464 usbvision_release(usbvision
);
467 PDEBUG(DBG_IO
, "success");
475 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
478 #ifdef CONFIG_VIDEO_ADV_DEBUG
479 static int vidioc_g_register (struct file
*file
, void *priv
,
480 struct v4l2_dbg_register
*reg
)
482 struct usb_usbvision
*usbvision
= video_drvdata(file
);
485 if (!v4l2_chip_match_host(®
->match
))
487 /* NT100x has a 8-bit register space */
488 errCode
= usbvision_read_reg(usbvision
, reg
->reg
&0xff);
490 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
499 static int vidioc_s_register (struct file
*file
, void *priv
,
500 struct v4l2_dbg_register
*reg
)
502 struct usb_usbvision
*usbvision
= video_drvdata(file
);
505 if (!v4l2_chip_match_host(®
->match
))
507 /* NT100x has a 8-bit register space */
508 errCode
= usbvision_write_reg(usbvision
, reg
->reg
&0xff, reg
->val
);
510 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
518 static int vidioc_querycap (struct file
*file
, void *priv
,
519 struct v4l2_capability
*vc
)
521 struct usb_usbvision
*usbvision
= video_drvdata(file
);
523 strlcpy(vc
->driver
, "USBVision", sizeof(vc
->driver
));
525 usbvision_device_data
[usbvision
->DevModel
].ModelString
,
527 strlcpy(vc
->bus_info
, dev_name(&usbvision
->dev
->dev
),
528 sizeof(vc
->bus_info
));
529 vc
->version
= USBVISION_DRIVER_VERSION
;
530 vc
->capabilities
= V4L2_CAP_VIDEO_CAPTURE
|
534 (usbvision
->have_tuner
? V4L2_CAP_TUNER
: 0);
538 static int vidioc_enum_input (struct file
*file
, void *priv
,
539 struct v4l2_input
*vi
)
541 struct usb_usbvision
*usbvision
= video_drvdata(file
);
544 if ((vi
->index
>= usbvision
->video_inputs
) || (vi
->index
< 0) )
546 if (usbvision
->have_tuner
) {
549 chan
= vi
->index
+ 1; /*skip Television string*/
551 /* Determine the requested input characteristics
552 specific for each usbvision card model */
555 if (usbvision_device_data
[usbvision
->DevModel
].VideoChannels
== 4) {
556 strcpy(vi
->name
, "White Video Input");
558 strcpy(vi
->name
, "Television");
559 vi
->type
= V4L2_INPUT_TYPE_TUNER
;
562 vi
->std
= USBVISION_NORMS
;
566 vi
->type
= V4L2_INPUT_TYPE_CAMERA
;
567 if (usbvision_device_data
[usbvision
->DevModel
].VideoChannels
== 4) {
568 strcpy(vi
->name
, "Green Video Input");
570 strcpy(vi
->name
, "Composite Video Input");
572 vi
->std
= V4L2_STD_PAL
;
575 vi
->type
= V4L2_INPUT_TYPE_CAMERA
;
576 if (usbvision_device_data
[usbvision
->DevModel
].VideoChannels
== 4) {
577 strcpy(vi
->name
, "Yellow Video Input");
579 strcpy(vi
->name
, "S-Video Input");
581 vi
->std
= V4L2_STD_PAL
;
584 vi
->type
= V4L2_INPUT_TYPE_CAMERA
;
585 strcpy(vi
->name
, "Red Video Input");
586 vi
->std
= V4L2_STD_PAL
;
592 static int vidioc_g_input (struct file
*file
, void *priv
, unsigned int *input
)
594 struct usb_usbvision
*usbvision
= video_drvdata(file
);
596 *input
= usbvision
->ctl_input
;
600 static int vidioc_s_input (struct file
*file
, void *priv
, unsigned int input
)
602 struct usb_usbvision
*usbvision
= video_drvdata(file
);
604 if ((input
>= usbvision
->video_inputs
) || (input
< 0) )
607 mutex_lock(&usbvision
->lock
);
608 usbvision_muxsel(usbvision
, input
);
609 usbvision_set_input(usbvision
);
610 usbvision_set_output(usbvision
,
612 usbvision
->curheight
);
613 mutex_unlock(&usbvision
->lock
);
617 static int vidioc_s_std (struct file
*file
, void *priv
, v4l2_std_id
*id
)
619 struct usb_usbvision
*usbvision
= video_drvdata(file
);
621 usbvision
->tvnormId
=*id
;
623 mutex_lock(&usbvision
->lock
);
624 call_i2c_clients(usbvision
, VIDIOC_S_STD
,
625 &usbvision
->tvnormId
);
626 mutex_unlock(&usbvision
->lock
);
627 /* propagate the change to the decoder */
628 usbvision_muxsel(usbvision
, usbvision
->ctl_input
);
633 static int vidioc_g_tuner (struct file
*file
, void *priv
,
634 struct v4l2_tuner
*vt
)
636 struct usb_usbvision
*usbvision
= video_drvdata(file
);
638 if (!usbvision
->have_tuner
|| vt
->index
) // Only tuner 0
640 if(usbvision
->radio
) {
641 strcpy(vt
->name
, "Radio");
642 vt
->type
= V4L2_TUNER_RADIO
;
644 strcpy(vt
->name
, "Television");
646 /* Let clients fill in the remainder of this struct */
647 call_i2c_clients(usbvision
,VIDIOC_G_TUNER
,vt
);
652 static int vidioc_s_tuner (struct file
*file
, void *priv
,
653 struct v4l2_tuner
*vt
)
655 struct usb_usbvision
*usbvision
= video_drvdata(file
);
657 // Only no or one tuner for now
658 if (!usbvision
->have_tuner
|| vt
->index
)
660 /* let clients handle this */
661 call_i2c_clients(usbvision
,VIDIOC_S_TUNER
,vt
);
666 static int vidioc_g_frequency (struct file
*file
, void *priv
,
667 struct v4l2_frequency
*freq
)
669 struct usb_usbvision
*usbvision
= video_drvdata(file
);
671 freq
->tuner
= 0; // Only one tuner
672 if(usbvision
->radio
) {
673 freq
->type
= V4L2_TUNER_RADIO
;
675 freq
->type
= V4L2_TUNER_ANALOG_TV
;
677 freq
->frequency
= usbvision
->freq
;
682 static int vidioc_s_frequency (struct file
*file
, void *priv
,
683 struct v4l2_frequency
*freq
)
685 struct usb_usbvision
*usbvision
= video_drvdata(file
);
687 // Only no or one tuner for now
688 if (!usbvision
->have_tuner
|| freq
->tuner
)
691 usbvision
->freq
= freq
->frequency
;
692 call_i2c_clients(usbvision
, VIDIOC_S_FREQUENCY
, freq
);
697 static int vidioc_g_audio (struct file
*file
, void *priv
, struct v4l2_audio
*a
)
699 struct usb_usbvision
*usbvision
= video_drvdata(file
);
701 memset(a
,0,sizeof(*a
));
702 if(usbvision
->radio
) {
703 strcpy(a
->name
,"Radio");
705 strcpy(a
->name
, "TV");
711 static int vidioc_s_audio (struct file
*file
, void *fh
,
712 struct v4l2_audio
*a
)
721 static int vidioc_queryctrl (struct file
*file
, void *priv
,
722 struct v4l2_queryctrl
*ctrl
)
724 struct usb_usbvision
*usbvision
= video_drvdata(file
);
727 memset(ctrl
,0,sizeof(*ctrl
));
730 call_i2c_clients(usbvision
, VIDIOC_QUERYCTRL
, ctrl
);
738 static int vidioc_g_ctrl (struct file
*file
, void *priv
,
739 struct v4l2_control
*ctrl
)
741 struct usb_usbvision
*usbvision
= video_drvdata(file
);
742 call_i2c_clients(usbvision
, VIDIOC_G_CTRL
, ctrl
);
747 static int vidioc_s_ctrl (struct file
*file
, void *priv
,
748 struct v4l2_control
*ctrl
)
750 struct usb_usbvision
*usbvision
= video_drvdata(file
);
751 call_i2c_clients(usbvision
, VIDIOC_S_CTRL
, ctrl
);
756 static int vidioc_reqbufs (struct file
*file
,
757 void *priv
, struct v4l2_requestbuffers
*vr
)
759 struct usb_usbvision
*usbvision
= video_drvdata(file
);
762 RESTRICT_TO_RANGE(vr
->count
,1,USBVISION_NUMFRAMES
);
764 /* Check input validity:
765 the user must do a VIDEO CAPTURE and MMAP method. */
766 if((vr
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
) ||
767 (vr
->memory
!= V4L2_MEMORY_MMAP
))
770 if(usbvision
->streaming
== Stream_On
) {
771 if ((ret
= usbvision_stream_interrupt(usbvision
)))
775 usbvision_frames_free(usbvision
);
776 usbvision_empty_framequeues(usbvision
);
777 vr
->count
= usbvision_frames_alloc(usbvision
,vr
->count
);
779 usbvision
->curFrame
= NULL
;
784 static int vidioc_querybuf (struct file
*file
,
785 void *priv
, struct v4l2_buffer
*vb
)
787 struct usb_usbvision
*usbvision
= video_drvdata(file
);
788 struct usbvision_frame
*frame
;
790 /* FIXME : must control
791 that buffers are mapped (VIDIOC_REQBUFS has been called) */
792 if(vb
->type
!= V4L2_CAP_VIDEO_CAPTURE
) {
795 if(vb
->index
>=usbvision
->num_frames
) {
798 /* Updating the corresponding frame state */
800 frame
= &usbvision
->frame
[vb
->index
];
801 if(frame
->grabstate
>= FrameState_Ready
)
802 vb
->flags
|= V4L2_BUF_FLAG_QUEUED
;
803 if(frame
->grabstate
>= FrameState_Done
)
804 vb
->flags
|= V4L2_BUF_FLAG_DONE
;
805 if(frame
->grabstate
== FrameState_Unused
)
806 vb
->flags
|= V4L2_BUF_FLAG_MAPPED
;
807 vb
->memory
= V4L2_MEMORY_MMAP
;
809 vb
->m
.offset
= vb
->index
*PAGE_ALIGN(usbvision
->max_frame_size
);
811 vb
->memory
= V4L2_MEMORY_MMAP
;
812 vb
->field
= V4L2_FIELD_NONE
;
813 vb
->length
= usbvision
->curwidth
*
814 usbvision
->curheight
*
815 usbvision
->palette
.bytes_per_pixel
;
816 vb
->timestamp
= usbvision
->frame
[vb
->index
].timestamp
;
817 vb
->sequence
= usbvision
->frame
[vb
->index
].sequence
;
821 static int vidioc_qbuf (struct file
*file
, void *priv
, struct v4l2_buffer
*vb
)
823 struct usb_usbvision
*usbvision
= video_drvdata(file
);
824 struct usbvision_frame
*frame
;
825 unsigned long lock_flags
;
827 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
828 if(vb
->type
!= V4L2_CAP_VIDEO_CAPTURE
) {
831 if(vb
->index
>=usbvision
->num_frames
) {
835 frame
= &usbvision
->frame
[vb
->index
];
837 if (frame
->grabstate
!= FrameState_Unused
) {
841 /* Mark it as ready and enqueue frame */
842 frame
->grabstate
= FrameState_Ready
;
843 frame
->scanstate
= ScanState_Scanning
;
844 frame
->scanlength
= 0; /* Accumulated in usbvision_parse_data() */
846 vb
->flags
&= ~V4L2_BUF_FLAG_DONE
;
848 /* set v4l2_format index */
849 frame
->v4l2_format
= usbvision
->palette
;
851 spin_lock_irqsave(&usbvision
->queue_lock
, lock_flags
);
852 list_add_tail(&usbvision
->frame
[vb
->index
].frame
, &usbvision
->inqueue
);
853 spin_unlock_irqrestore(&usbvision
->queue_lock
, lock_flags
);
858 static int vidioc_dqbuf (struct file
*file
, void *priv
, struct v4l2_buffer
*vb
)
860 struct usb_usbvision
*usbvision
= video_drvdata(file
);
862 struct usbvision_frame
*f
;
863 unsigned long lock_flags
;
865 if (vb
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
868 if (list_empty(&(usbvision
->outqueue
))) {
869 if (usbvision
->streaming
== Stream_Idle
)
871 ret
= wait_event_interruptible
872 (usbvision
->wait_frame
,
873 !list_empty(&(usbvision
->outqueue
)));
878 spin_lock_irqsave(&usbvision
->queue_lock
, lock_flags
);
879 f
= list_entry(usbvision
->outqueue
.next
,
880 struct usbvision_frame
, frame
);
881 list_del(usbvision
->outqueue
.next
);
882 spin_unlock_irqrestore(&usbvision
->queue_lock
, lock_flags
);
884 f
->grabstate
= FrameState_Unused
;
886 vb
->memory
= V4L2_MEMORY_MMAP
;
887 vb
->flags
= V4L2_BUF_FLAG_MAPPED
|
888 V4L2_BUF_FLAG_QUEUED
|
890 vb
->index
= f
->index
;
891 vb
->sequence
= f
->sequence
;
892 vb
->timestamp
= f
->timestamp
;
893 vb
->field
= V4L2_FIELD_NONE
;
894 vb
->bytesused
= f
->scanlength
;
899 static int vidioc_streamon(struct file
*file
, void *priv
, enum v4l2_buf_type i
)
901 struct usb_usbvision
*usbvision
= video_drvdata(file
);
902 int b
=V4L2_BUF_TYPE_VIDEO_CAPTURE
;
904 usbvision
->streaming
= Stream_On
;
905 call_i2c_clients(usbvision
,VIDIOC_STREAMON
, &b
);
910 static int vidioc_streamoff(struct file
*file
,
911 void *priv
, enum v4l2_buf_type type
)
913 struct usb_usbvision
*usbvision
= video_drvdata(file
);
914 int b
=V4L2_BUF_TYPE_VIDEO_CAPTURE
;
916 if (type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
919 if(usbvision
->streaming
== Stream_On
) {
920 usbvision_stream_interrupt(usbvision
);
921 /* Stop all video streamings */
922 call_i2c_clients(usbvision
,VIDIOC_STREAMOFF
, &b
);
924 usbvision_empty_framequeues(usbvision
);
929 static int vidioc_enum_fmt_vid_cap (struct file
*file
, void *priv
,
930 struct v4l2_fmtdesc
*vfd
)
932 if(vfd
->index
>=USBVISION_SUPPORTED_PALETTES
-1) {
936 vfd
->type
= V4L2_BUF_TYPE_VIDEO_CAPTURE
;
937 strcpy(vfd
->description
,usbvision_v4l2_format
[vfd
->index
].desc
);
938 vfd
->pixelformat
= usbvision_v4l2_format
[vfd
->index
].format
;
939 memset(vfd
->reserved
, 0, sizeof(vfd
->reserved
));
943 static int vidioc_g_fmt_vid_cap (struct file
*file
, void *priv
,
944 struct v4l2_format
*vf
)
946 struct usb_usbvision
*usbvision
= video_drvdata(file
);
947 vf
->fmt
.pix
.width
= usbvision
->curwidth
;
948 vf
->fmt
.pix
.height
= usbvision
->curheight
;
949 vf
->fmt
.pix
.pixelformat
= usbvision
->palette
.format
;
950 vf
->fmt
.pix
.bytesperline
=
951 usbvision
->curwidth
*usbvision
->palette
.bytes_per_pixel
;
952 vf
->fmt
.pix
.sizeimage
= vf
->fmt
.pix
.bytesperline
*usbvision
->curheight
;
953 vf
->fmt
.pix
.colorspace
= V4L2_COLORSPACE_SMPTE170M
;
954 vf
->fmt
.pix
.field
= V4L2_FIELD_NONE
; /* Always progressive image */
959 static int vidioc_try_fmt_vid_cap (struct file
*file
, void *priv
,
960 struct v4l2_format
*vf
)
962 struct usb_usbvision
*usbvision
= video_drvdata(file
);
965 /* Find requested format in available ones */
966 for(formatIdx
=0;formatIdx
<USBVISION_SUPPORTED_PALETTES
;formatIdx
++) {
967 if(vf
->fmt
.pix
.pixelformat
==
968 usbvision_v4l2_format
[formatIdx
].format
) {
969 usbvision
->palette
= usbvision_v4l2_format
[formatIdx
];
974 if(formatIdx
== USBVISION_SUPPORTED_PALETTES
) {
977 RESTRICT_TO_RANGE(vf
->fmt
.pix
.width
, MIN_FRAME_WIDTH
, MAX_FRAME_WIDTH
);
978 RESTRICT_TO_RANGE(vf
->fmt
.pix
.height
, MIN_FRAME_HEIGHT
, MAX_FRAME_HEIGHT
);
980 vf
->fmt
.pix
.bytesperline
= vf
->fmt
.pix
.width
*
981 usbvision
->palette
.bytes_per_pixel
;
982 vf
->fmt
.pix
.sizeimage
= vf
->fmt
.pix
.bytesperline
*vf
->fmt
.pix
.height
;
987 static int vidioc_s_fmt_vid_cap(struct file
*file
, void *priv
,
988 struct v4l2_format
*vf
)
990 struct usb_usbvision
*usbvision
= video_drvdata(file
);
993 if( 0 != (ret
=vidioc_try_fmt_vid_cap (file
, priv
, vf
)) ) {
997 /* stop io in case it is already in progress */
998 if(usbvision
->streaming
== Stream_On
) {
999 if ((ret
= usbvision_stream_interrupt(usbvision
)))
1002 usbvision_frames_free(usbvision
);
1003 usbvision_empty_framequeues(usbvision
);
1005 usbvision
->curFrame
= NULL
;
1007 /* by now we are committed to the new data... */
1008 mutex_lock(&usbvision
->lock
);
1009 usbvision_set_output(usbvision
, vf
->fmt
.pix
.width
, vf
->fmt
.pix
.height
);
1010 mutex_unlock(&usbvision
->lock
);
1015 static ssize_t
usbvision_v4l2_read(struct file
*file
, char __user
*buf
,
1016 size_t count
, loff_t
*ppos
)
1018 struct usb_usbvision
*usbvision
= video_drvdata(file
);
1019 int noblock
= file
->f_flags
& O_NONBLOCK
;
1020 unsigned long lock_flags
;
1023 struct usbvision_frame
*frame
;
1025 PDEBUG(DBG_IO
, "%s: %ld bytes, noblock=%d", __func__
,
1026 (unsigned long)count
, noblock
);
1028 if (!USBVISION_IS_OPERATIONAL(usbvision
) || (buf
== NULL
))
1031 /* This entry point is compatible with the mmap routines
1032 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1033 to get frames or call read on the device. */
1034 if(!usbvision
->num_frames
) {
1035 /* First, allocate some frames to work with
1036 if this has not been done with VIDIOC_REQBUF */
1037 usbvision_frames_free(usbvision
);
1038 usbvision_empty_framequeues(usbvision
);
1039 usbvision_frames_alloc(usbvision
,USBVISION_NUMFRAMES
);
1042 if(usbvision
->streaming
!= Stream_On
) {
1043 /* no stream is running, make it running ! */
1044 usbvision
->streaming
= Stream_On
;
1045 call_i2c_clients(usbvision
,VIDIOC_STREAMON
, NULL
);
1048 /* Then, enqueue as many frames as possible
1049 (like a user of VIDIOC_QBUF would do) */
1050 for(i
=0;i
<usbvision
->num_frames
;i
++) {
1051 frame
= &usbvision
->frame
[i
];
1052 if(frame
->grabstate
== FrameState_Unused
) {
1053 /* Mark it as ready and enqueue frame */
1054 frame
->grabstate
= FrameState_Ready
;
1055 frame
->scanstate
= ScanState_Scanning
;
1056 /* Accumulated in usbvision_parse_data() */
1057 frame
->scanlength
= 0;
1059 /* set v4l2_format index */
1060 frame
->v4l2_format
= usbvision
->palette
;
1062 spin_lock_irqsave(&usbvision
->queue_lock
, lock_flags
);
1063 list_add_tail(&frame
->frame
, &usbvision
->inqueue
);
1064 spin_unlock_irqrestore(&usbvision
->queue_lock
,
1069 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1070 if (list_empty(&(usbvision
->outqueue
))) {
1074 ret
= wait_event_interruptible
1075 (usbvision
->wait_frame
,
1076 !list_empty(&(usbvision
->outqueue
)));
1081 spin_lock_irqsave(&usbvision
->queue_lock
, lock_flags
);
1082 frame
= list_entry(usbvision
->outqueue
.next
,
1083 struct usbvision_frame
, frame
);
1084 list_del(usbvision
->outqueue
.next
);
1085 spin_unlock_irqrestore(&usbvision
->queue_lock
, lock_flags
);
1087 /* An error returns an empty frame */
1088 if (frame
->grabstate
== FrameState_Error
) {
1089 frame
->bytes_read
= 0;
1093 PDEBUG(DBG_IO
, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1095 frame
->index
, frame
->bytes_read
, frame
->scanlength
);
1097 /* copy bytes to user space; we allow for partials reads */
1098 if ((count
+ frame
->bytes_read
) > (unsigned long)frame
->scanlength
)
1099 count
= frame
->scanlength
- frame
->bytes_read
;
1101 if (copy_to_user(buf
, frame
->data
+ frame
->bytes_read
, count
)) {
1105 frame
->bytes_read
+= count
;
1106 PDEBUG(DBG_IO
, "%s: {copy} count used=%ld, new bytes_read=%ld",
1108 (unsigned long)count
, frame
->bytes_read
);
1110 /* For now, forget the frame if it has not been read in one shot. */
1111 /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1112 frame
->bytes_read
= 0;
1114 /* Mark it as available to be used again. */
1115 frame
->grabstate
= FrameState_Unused
;
1121 static int usbvision_v4l2_mmap(struct file
*file
, struct vm_area_struct
*vma
)
1123 unsigned long size
= vma
->vm_end
- vma
->vm_start
,
1124 start
= vma
->vm_start
;
1127 struct usb_usbvision
*usbvision
= video_drvdata(file
);
1129 PDEBUG(DBG_MMAP
, "mmap");
1131 mutex_lock(&usbvision
->lock
);
1133 if (!USBVISION_IS_OPERATIONAL(usbvision
)) {
1134 mutex_unlock(&usbvision
->lock
);
1138 if (!(vma
->vm_flags
& VM_WRITE
) ||
1139 size
!= PAGE_ALIGN(usbvision
->max_frame_size
)) {
1140 mutex_unlock(&usbvision
->lock
);
1144 for (i
= 0; i
< usbvision
->num_frames
; i
++) {
1145 if (((PAGE_ALIGN(usbvision
->max_frame_size
)*i
) >> PAGE_SHIFT
) ==
1149 if (i
== usbvision
->num_frames
) {
1151 "mmap: user supplied mapping address is out of range");
1152 mutex_unlock(&usbvision
->lock
);
1156 /* VM_IO is eventually going to replace PageReserved altogether */
1157 vma
->vm_flags
|= VM_IO
;
1158 vma
->vm_flags
|= VM_RESERVED
; /* avoid to swap out this VMA */
1160 pos
= usbvision
->frame
[i
].data
;
1163 if (vm_insert_page(vma
, start
, vmalloc_to_page(pos
))) {
1164 PDEBUG(DBG_MMAP
, "mmap: vm_insert_page failed");
1165 mutex_unlock(&usbvision
->lock
);
1173 mutex_unlock(&usbvision
->lock
);
1179 * Here comes the stuff for radio on usbvision based devices
1182 static int usbvision_radio_open(struct file
*file
)
1184 struct usb_usbvision
*usbvision
= video_drvdata(file
);
1187 PDEBUG(DBG_IO
, "%s:", __func__
);
1189 mutex_lock(&usbvision
->lock
);
1191 if (usbvision
->user
) {
1192 err("%s: Someone tried to open an already opened USBVision Radio!", __func__
);
1197 usbvision_reset_powerOffTimer(usbvision
);
1198 if (usbvision
->power
== 0) {
1199 usbvision_power_on(usbvision
);
1200 usbvision_i2c_register(usbvision
);
1204 /* Alternate interface 1 is is the biggest frame size */
1205 errCode
= usbvision_set_alternate(usbvision
);
1207 usbvision
->last_error
= errCode
;
1212 // If so far no errors then we shall start the radio
1213 usbvision
->radio
= 1;
1214 call_i2c_clients(usbvision
,AUDC_SET_RADIO
,&usbvision
->tuner_type
);
1215 usbvision_set_audio(usbvision
, USBVISION_AUDIO_RADIO
);
1220 if (PowerOnAtOpen
) {
1221 usbvision_i2c_unregister(usbvision
);
1222 usbvision_power_off(usbvision
);
1223 usbvision
->initialized
= 0;
1227 mutex_unlock(&usbvision
->lock
);
1232 static int usbvision_radio_close(struct file
*file
)
1234 struct usb_usbvision
*usbvision
= video_drvdata(file
);
1239 mutex_lock(&usbvision
->lock
);
1241 /* Set packet size to 0 */
1242 usbvision
->ifaceAlt
=0;
1243 errCode
= usb_set_interface(usbvision
->dev
, usbvision
->iface
,
1244 usbvision
->ifaceAlt
);
1246 usbvision_audio_off(usbvision
);
1250 if (PowerOnAtOpen
) {
1251 usbvision_set_powerOffTimer(usbvision
);
1252 usbvision
->initialized
= 0;
1255 mutex_unlock(&usbvision
->lock
);
1257 if (usbvision
->remove_pending
) {
1258 printk(KERN_INFO
"%s: Final disconnect\n", __func__
);
1259 usbvision_release(usbvision
);
1262 PDEBUG(DBG_IO
, "success");
1267 * Here comes the stuff for vbi on usbvision based devices
1270 static int usbvision_vbi_open(struct file
*file
)
1276 static int usbvision_vbi_close(struct file
*file
)
1282 static long usbvision_do_vbi_ioctl(struct file
*file
,
1283 unsigned int cmd
, void *arg
)
1286 return -ENOIOCTLCMD
;
1289 static long usbvision_vbi_ioctl(struct file
*file
,
1290 unsigned int cmd
, unsigned long arg
)
1292 return video_usercopy(file
, cmd
, arg
, usbvision_do_vbi_ioctl
);
1297 // Video registration stuff
1301 static const struct v4l2_file_operations usbvision_fops
= {
1302 .owner
= THIS_MODULE
,
1303 .open
= usbvision_v4l2_open
,
1304 .release
= usbvision_v4l2_close
,
1305 .read
= usbvision_v4l2_read
,
1306 .mmap
= usbvision_v4l2_mmap
,
1307 .ioctl
= video_ioctl2
,
1308 /* .poll = video_poll, */
1311 static const struct v4l2_ioctl_ops usbvision_ioctl_ops
= {
1312 .vidioc_querycap
= vidioc_querycap
,
1313 .vidioc_enum_fmt_vid_cap
= vidioc_enum_fmt_vid_cap
,
1314 .vidioc_g_fmt_vid_cap
= vidioc_g_fmt_vid_cap
,
1315 .vidioc_try_fmt_vid_cap
= vidioc_try_fmt_vid_cap
,
1316 .vidioc_s_fmt_vid_cap
= vidioc_s_fmt_vid_cap
,
1317 .vidioc_reqbufs
= vidioc_reqbufs
,
1318 .vidioc_querybuf
= vidioc_querybuf
,
1319 .vidioc_qbuf
= vidioc_qbuf
,
1320 .vidioc_dqbuf
= vidioc_dqbuf
,
1321 .vidioc_s_std
= vidioc_s_std
,
1322 .vidioc_enum_input
= vidioc_enum_input
,
1323 .vidioc_g_input
= vidioc_g_input
,
1324 .vidioc_s_input
= vidioc_s_input
,
1325 .vidioc_queryctrl
= vidioc_queryctrl
,
1326 .vidioc_g_audio
= vidioc_g_audio
,
1327 .vidioc_s_audio
= vidioc_s_audio
,
1328 .vidioc_g_ctrl
= vidioc_g_ctrl
,
1329 .vidioc_s_ctrl
= vidioc_s_ctrl
,
1330 .vidioc_streamon
= vidioc_streamon
,
1331 .vidioc_streamoff
= vidioc_streamoff
,
1332 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1333 /* .vidiocgmbuf = vidiocgmbuf, */
1335 .vidioc_g_tuner
= vidioc_g_tuner
,
1336 .vidioc_s_tuner
= vidioc_s_tuner
,
1337 .vidioc_g_frequency
= vidioc_g_frequency
,
1338 .vidioc_s_frequency
= vidioc_s_frequency
,
1339 #ifdef CONFIG_VIDEO_ADV_DEBUG
1340 .vidioc_g_register
= vidioc_g_register
,
1341 .vidioc_s_register
= vidioc_s_register
,
1345 static struct video_device usbvision_video_template
= {
1346 .fops
= &usbvision_fops
,
1347 .ioctl_ops
= &usbvision_ioctl_ops
,
1348 .name
= "usbvision-video",
1349 .release
= video_device_release
,
1351 .tvnorms
= USBVISION_NORMS
,
1352 .current_norm
= V4L2_STD_PAL
1357 static const struct v4l2_file_operations usbvision_radio_fops
= {
1358 .owner
= THIS_MODULE
,
1359 .open
= usbvision_radio_open
,
1360 .release
= usbvision_radio_close
,
1361 .ioctl
= video_ioctl2
,
1364 static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops
= {
1365 .vidioc_querycap
= vidioc_querycap
,
1366 .vidioc_enum_input
= vidioc_enum_input
,
1367 .vidioc_g_input
= vidioc_g_input
,
1368 .vidioc_s_input
= vidioc_s_input
,
1369 .vidioc_queryctrl
= vidioc_queryctrl
,
1370 .vidioc_g_audio
= vidioc_g_audio
,
1371 .vidioc_s_audio
= vidioc_s_audio
,
1372 .vidioc_g_ctrl
= vidioc_g_ctrl
,
1373 .vidioc_s_ctrl
= vidioc_s_ctrl
,
1374 .vidioc_g_tuner
= vidioc_g_tuner
,
1375 .vidioc_s_tuner
= vidioc_s_tuner
,
1376 .vidioc_g_frequency
= vidioc_g_frequency
,
1377 .vidioc_s_frequency
= vidioc_s_frequency
,
1380 static struct video_device usbvision_radio_template
= {
1381 .fops
= &usbvision_radio_fops
,
1382 .name
= "usbvision-radio",
1383 .release
= video_device_release
,
1385 .ioctl_ops
= &usbvision_radio_ioctl_ops
,
1387 .tvnorms
= USBVISION_NORMS
,
1388 .current_norm
= V4L2_STD_PAL
1392 static const struct v4l2_file_operations usbvision_vbi_fops
= {
1393 .owner
= THIS_MODULE
,
1394 .open
= usbvision_vbi_open
,
1395 .release
= usbvision_vbi_close
,
1396 .ioctl
= usbvision_vbi_ioctl
,
1399 static struct video_device usbvision_vbi_template
=
1401 .fops
= &usbvision_vbi_fops
,
1402 .release
= video_device_release
,
1403 .name
= "usbvision-vbi",
1408 static struct video_device
*usbvision_vdev_init(struct usb_usbvision
*usbvision
,
1409 struct video_device
*vdev_template
,
1412 struct usb_device
*usb_dev
= usbvision
->dev
;
1413 struct video_device
*vdev
;
1415 if (usb_dev
== NULL
) {
1416 err("%s: usbvision->dev is not set", __func__
);
1420 vdev
= video_device_alloc();
1424 *vdev
= *vdev_template
;
1425 // vdev->minor = -1;
1426 vdev
->parent
= &usb_dev
->dev
;
1427 snprintf(vdev
->name
, sizeof(vdev
->name
), "%s", name
);
1428 video_set_drvdata(vdev
, usbvision
);
1432 // unregister video4linux devices
1433 static void usbvision_unregister_video(struct usb_usbvision
*usbvision
)
1436 if (usbvision
->vbi
) {
1437 PDEBUG(DBG_PROBE
, "unregister /dev/vbi%d [v4l2]",
1438 usbvision
->vbi
->num
);
1439 if (usbvision
->vbi
->minor
!= -1) {
1440 video_unregister_device(usbvision
->vbi
);
1442 video_device_release(usbvision
->vbi
);
1444 usbvision
->vbi
= NULL
;
1448 if (usbvision
->rdev
) {
1449 PDEBUG(DBG_PROBE
, "unregister /dev/radio%d [v4l2]",
1450 usbvision
->rdev
->num
);
1451 if (usbvision
->rdev
->minor
!= -1) {
1452 video_unregister_device(usbvision
->rdev
);
1454 video_device_release(usbvision
->rdev
);
1456 usbvision
->rdev
= NULL
;
1460 if (usbvision
->vdev
) {
1461 PDEBUG(DBG_PROBE
, "unregister /dev/video%d [v4l2]",
1462 usbvision
->vdev
->num
);
1463 if (usbvision
->vdev
->minor
!= -1) {
1464 video_unregister_device(usbvision
->vdev
);
1466 video_device_release(usbvision
->vdev
);
1468 usbvision
->vdev
= NULL
;
1472 // register video4linux devices
1473 static int __devinit
usbvision_register_video(struct usb_usbvision
*usbvision
)
1476 usbvision
->vdev
= usbvision_vdev_init(usbvision
,
1477 &usbvision_video_template
,
1479 if (usbvision
->vdev
== NULL
) {
1482 if (video_register_device(usbvision
->vdev
,
1487 printk(KERN_INFO
"USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1488 usbvision
->nr
, usbvision
->vdev
->num
);
1491 if (usbvision_device_data
[usbvision
->DevModel
].Radio
) {
1492 // usbvision has radio
1493 usbvision
->rdev
= usbvision_vdev_init(usbvision
,
1494 &usbvision_radio_template
,
1496 if (usbvision
->rdev
== NULL
) {
1499 if (video_register_device(usbvision
->rdev
,
1504 printk(KERN_INFO
"USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1505 usbvision
->nr
, usbvision
->rdev
->num
);
1508 if (usbvision_device_data
[usbvision
->DevModel
].vbi
) {
1509 usbvision
->vbi
= usbvision_vdev_init(usbvision
,
1510 &usbvision_vbi_template
,
1512 if (usbvision
->vdev
== NULL
) {
1515 if (video_register_device(usbvision
->vbi
,
1520 printk(KERN_INFO
"USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1521 usbvision
->nr
, usbvision
->vbi
->num
);
1527 err("USBVision[%d]: video_register_device() failed", usbvision
->nr
);
1528 usbvision_unregister_video(usbvision
);
1535 * This code allocates the struct usb_usbvision.
1536 * It is filled with default values.
1538 * Returns NULL on error, a pointer to usb_usbvision else.
1541 static struct usb_usbvision
*usbvision_alloc(struct usb_device
*dev
)
1543 struct usb_usbvision
*usbvision
;
1545 if ((usbvision
= kzalloc(sizeof(struct usb_usbvision
), GFP_KERNEL
)) ==
1550 usbvision
->dev
= dev
;
1552 mutex_init(&usbvision
->lock
); /* available */
1554 // prepare control urb for control messages during interrupts
1555 usbvision
->ctrlUrb
= usb_alloc_urb(USBVISION_URB_FRAMES
, GFP_KERNEL
);
1556 if (usbvision
->ctrlUrb
== NULL
) {
1559 init_waitqueue_head(&usbvision
->ctrlUrb_wq
);
1561 usbvision_init_powerOffTimer(usbvision
);
1566 if (usbvision
&& usbvision
->ctrlUrb
) {
1567 usb_free_urb(usbvision
->ctrlUrb
);
1576 * usbvision_release()
1578 * This code does final release of struct usb_usbvision. This happens
1579 * after the device is disconnected -and- all clients closed their files.
1582 static void usbvision_release(struct usb_usbvision
*usbvision
)
1584 PDEBUG(DBG_PROBE
, "");
1586 mutex_lock(&usbvision
->lock
);
1588 usbvision_reset_powerOffTimer(usbvision
);
1590 usbvision
->initialized
= 0;
1592 mutex_unlock(&usbvision
->lock
);
1594 usbvision_remove_sysfs(usbvision
->vdev
);
1595 usbvision_unregister_video(usbvision
);
1597 if (usbvision
->ctrlUrb
) {
1598 usb_free_urb(usbvision
->ctrlUrb
);
1603 PDEBUG(DBG_PROBE
, "success");
1607 /*********************** usb interface **********************************/
1609 static void usbvision_configure_video(struct usb_usbvision
*usbvision
)
1613 if (usbvision
== NULL
)
1616 model
= usbvision
->DevModel
;
1617 usbvision
->palette
= usbvision_v4l2_format
[2]; // V4L2_PIX_FMT_RGB24;
1619 if (usbvision_device_data
[usbvision
->DevModel
].Vin_Reg2_override
) {
1620 usbvision
->Vin_Reg2_Preset
=
1621 usbvision_device_data
[usbvision
->DevModel
].Vin_Reg2
;
1623 usbvision
->Vin_Reg2_Preset
= 0;
1626 usbvision
->tvnormId
= usbvision_device_data
[model
].VideoNorm
;
1628 usbvision
->video_inputs
= usbvision_device_data
[model
].VideoChannels
;
1629 usbvision
->ctl_input
= 0;
1631 /* This should be here to make i2c clients to be able to register */
1632 /* first switch off audio */
1633 usbvision_audio_off(usbvision
);
1634 if (!PowerOnAtOpen
) {
1635 /* and then power up the noisy tuner */
1636 usbvision_power_on(usbvision
);
1637 usbvision_i2c_register(usbvision
);
1644 * This procedure queries device descriptor and accepts the interface
1645 * if it looks like USBVISION video device
1648 static int __devinit
usbvision_probe(struct usb_interface
*intf
,
1649 const struct usb_device_id
*devid
)
1651 struct usb_device
*dev
= usb_get_dev(interface_to_usbdev(intf
));
1652 struct usb_interface
*uif
;
1653 __u8 ifnum
= intf
->altsetting
->desc
.bInterfaceNumber
;
1654 const struct usb_host_interface
*interface
;
1655 struct usb_usbvision
*usbvision
= NULL
;
1656 const struct usb_endpoint_descriptor
*endpoint
;
1659 PDEBUG(DBG_PROBE
, "VID=%#04x, PID=%#04x, ifnum=%u",
1660 dev
->descriptor
.idVendor
,
1661 dev
->descriptor
.idProduct
, ifnum
);
1663 model
= devid
->driver_info
;
1664 if ( (model
<0) || (model
>=usbvision_device_data_size
) ) {
1665 PDEBUG(DBG_PROBE
, "model out of bounds %d",model
);
1668 printk(KERN_INFO
"%s: %s found\n", __func__
,
1669 usbvision_device_data
[model
].ModelString
);
1671 if (usbvision_device_data
[model
].Interface
>= 0) {
1672 interface
= &dev
->actconfig
->interface
[usbvision_device_data
[model
].Interface
]->altsetting
[0];
1674 interface
= &dev
->actconfig
->interface
[ifnum
]->altsetting
[0];
1676 endpoint
= &interface
->endpoint
[1].desc
;
1677 if (usb_endpoint_type(endpoint
) !=
1678 USB_ENDPOINT_XFER_ISOC
) {
1679 err("%s: interface %d. has non-ISO endpoint!",
1681 err("%s: Endpoint attributes %d",
1682 __func__
, endpoint
->bmAttributes
);
1685 if (usb_endpoint_dir_out(endpoint
)) {
1686 err("%s: interface %d. has ISO OUT endpoint!",
1691 if ((usbvision
= usbvision_alloc(dev
)) == NULL
) {
1692 err("%s: couldn't allocate USBVision struct", __func__
);
1696 if (dev
->descriptor
.bNumConfigurations
> 1) {
1697 usbvision
->bridgeType
= BRIDGE_NT1004
;
1698 } else if (model
== DAZZLE_DVC_90_REV_1_SECAM
) {
1699 usbvision
->bridgeType
= BRIDGE_NT1005
;
1701 usbvision
->bridgeType
= BRIDGE_NT1003
;
1703 PDEBUG(DBG_PROBE
, "bridgeType %d", usbvision
->bridgeType
);
1705 mutex_lock(&usbvision
->lock
);
1707 /* compute alternate max packet sizes */
1708 uif
= dev
->actconfig
->interface
[0];
1710 usbvision
->num_alt
=uif
->num_altsetting
;
1711 PDEBUG(DBG_PROBE
, "Alternate settings: %i",usbvision
->num_alt
);
1712 usbvision
->alt_max_pkt_size
= kmalloc(32*
1713 usbvision
->num_alt
,GFP_KERNEL
);
1714 if (usbvision
->alt_max_pkt_size
== NULL
) {
1715 err("usbvision: out of memory!\n");
1716 mutex_unlock(&usbvision
->lock
);
1720 for (i
= 0; i
< usbvision
->num_alt
; i
++) {
1721 u16 tmp
= le16_to_cpu(uif
->altsetting
[i
].endpoint
[1].desc
.
1723 usbvision
->alt_max_pkt_size
[i
] =
1724 (tmp
& 0x07ff) * (((tmp
& 0x1800) >> 11) + 1);
1725 PDEBUG(DBG_PROBE
, "Alternate setting %i, max size= %i",i
,
1726 usbvision
->alt_max_pkt_size
[i
]);
1730 usbvision
->nr
= usbvision_nr
++;
1732 usbvision
->have_tuner
= usbvision_device_data
[model
].Tuner
;
1733 if (usbvision
->have_tuner
) {
1734 usbvision
->tuner_type
= usbvision_device_data
[model
].TunerType
;
1737 usbvision
->tuner_addr
= ADDR_UNSET
;
1739 usbvision
->DevModel
= model
;
1740 usbvision
->remove_pending
= 0;
1741 usbvision
->iface
= ifnum
;
1742 usbvision
->ifaceAlt
= 0;
1743 usbvision
->video_endp
= endpoint
->bEndpointAddress
;
1744 usbvision
->isocPacketSize
= 0;
1745 usbvision
->usb_bandwidth
= 0;
1746 usbvision
->user
= 0;
1747 usbvision
->streaming
= Stream_Off
;
1748 usbvision_register_video(usbvision
);
1749 usbvision_configure_video(usbvision
);
1750 mutex_unlock(&usbvision
->lock
);
1753 usb_set_intfdata (intf
, usbvision
);
1754 usbvision_create_sysfs(usbvision
->vdev
);
1756 PDEBUG(DBG_PROBE
, "success");
1762 * usbvision_disconnect()
1764 * This procedure stops all driver activity, deallocates interface-private
1765 * structure (pointed by 'ptr') and after that driver should be removable
1766 * with no ill consequences.
1769 static void __devexit
usbvision_disconnect(struct usb_interface
*intf
)
1771 struct usb_usbvision
*usbvision
= usb_get_intfdata(intf
);
1773 PDEBUG(DBG_PROBE
, "");
1775 if (usbvision
== NULL
) {
1776 err("%s: usb_get_intfdata() failed", __func__
);
1779 usb_set_intfdata (intf
, NULL
);
1781 mutex_lock(&usbvision
->lock
);
1783 // At this time we ask to cancel outstanding URBs
1784 usbvision_stop_isoc(usbvision
);
1786 if (usbvision
->power
) {
1787 usbvision_i2c_unregister(usbvision
);
1788 usbvision_power_off(usbvision
);
1790 usbvision
->remove_pending
= 1; // Now all ISO data will be ignored
1792 usb_put_dev(usbvision
->dev
);
1793 usbvision
->dev
= NULL
; // USB device is no more
1795 mutex_unlock(&usbvision
->lock
);
1797 if (usbvision
->user
) {
1798 printk(KERN_INFO
"%s: In use, disconnect pending\n",
1800 wake_up_interruptible(&usbvision
->wait_frame
);
1801 wake_up_interruptible(&usbvision
->wait_stream
);
1803 usbvision_release(usbvision
);
1806 PDEBUG(DBG_PROBE
, "success");
1809 static struct usb_driver usbvision_driver
= {
1810 .name
= "usbvision",
1811 .id_table
= usbvision_table
,
1812 .probe
= usbvision_probe
,
1813 .disconnect
= usbvision_disconnect
1819 * This code is run to initialize the driver.
1822 static int __init
usbvision_init(void)
1826 PDEBUG(DBG_PROBE
, "");
1828 PDEBUG(DBG_IO
, "IO debugging is enabled [video]");
1829 PDEBUG(DBG_PROBE
, "PROBE debugging is enabled [video]");
1830 PDEBUG(DBG_MMAP
, "MMAP debugging is enabled [video]");
1832 /* disable planar mode support unless compression enabled */
1833 if (isocMode
!= ISOC_MODE_COMPRESS
) {
1834 // FIXME : not the right way to set supported flag
1835 usbvision_v4l2_format
[6].supported
= 0; // V4L2_PIX_FMT_YVU420
1836 usbvision_v4l2_format
[7].supported
= 0; // V4L2_PIX_FMT_YUV422P
1839 errCode
= usb_register(&usbvision_driver
);
1842 printk(KERN_INFO DRIVER_DESC
" : " USBVISION_VERSION_STRING
"\n");
1843 PDEBUG(DBG_PROBE
, "success");
1848 static void __exit
usbvision_exit(void)
1850 PDEBUG(DBG_PROBE
, "");
1852 usb_deregister(&usbvision_driver
);
1853 PDEBUG(DBG_PROBE
, "success");
1856 module_init(usbvision_init
);
1857 module_exit(usbvision_exit
);
1860 * Overrides for Emacs so that we follow Linus's tabbing style.
1861 * ---------------------------------------------------------------------------