2 * USB USBVISION Video device driver 0.9.10
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>
53 #include <linux/smp_lock.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/i2c.h>
64 #include <media/saa7115.h>
65 #include <media/v4l2-common.h>
66 #include <media/v4l2-ioctl.h>
67 #include <media/tuner.h>
69 #include <linux/workqueue.h>
71 #include "usbvision.h"
72 #include "usbvision-cards.h"
74 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
75 Dwaine Garden <DwaineGarden@rogers.com>"
76 #define DRIVER_NAME "usbvision"
77 #define DRIVER_ALIAS "USBVision"
78 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
79 #define DRIVER_LICENSE "GPL"
80 #define USBVISION_DRIVER_VERSION_MAJOR 0
81 #define USBVISION_DRIVER_VERSION_MINOR 9
82 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 10
83 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
84 USBVISION_DRIVER_VERSION_MINOR,\
85 USBVISION_DRIVER_VERSION_PATCHLEVEL)
86 #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
87 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
88 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
90 #define ENABLE_HEXDUMP 0 /* Enable if you need it */
93 #ifdef USBVISION_DEBUG
94 #define PDEBUG(level, fmt, args...) { \
95 if (video_debug & (level)) \
96 printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \
97 __func__, __LINE__ , ## args); \
100 #define PDEBUG(level, fmt, args...) do {} while(0)
104 #define DBG_PROBE 1<<2
105 #define DBG_MMAP 1<<3
108 #define rmspace(str) while(*str==' ') str++;
109 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
112 /* sequential number of usbvision device */
113 static int usbvision_nr
;
115 static struct usbvision_v4l2_format_st usbvision_v4l2_format
[] = {
116 { 1, 1, 8, V4L2_PIX_FMT_GREY
, "GREY" },
117 { 1, 2, 16, V4L2_PIX_FMT_RGB565
, "RGB565" },
118 { 1, 3, 24, V4L2_PIX_FMT_RGB24
, "RGB24" },
119 { 1, 4, 32, V4L2_PIX_FMT_RGB32
, "RGB32" },
120 { 1, 2, 16, V4L2_PIX_FMT_RGB555
, "RGB555" },
121 { 1, 2, 16, V4L2_PIX_FMT_YUYV
, "YUV422" },
122 { 1, 2, 12, V4L2_PIX_FMT_YVU420
, "YUV420P" }, // 1.5 !
123 { 1, 2, 16, V4L2_PIX_FMT_YUV422P
, "YUV422P" }
126 /* Function prototypes */
127 static void usbvision_release(struct usb_usbvision
*usbvision
);
129 /* Default initialization of device driver parameters */
130 /* Set the default format for ISOC endpoint */
131 static int isocMode
= ISOC_MODE_COMPRESS
;
132 /* Set the default Debug Mode of the device driver */
133 static int video_debug
;
134 /* Set the default device to power on at startup */
135 static int PowerOnAtOpen
= 1;
136 /* Sequential Number of Video Device */
137 static int video_nr
= -1;
138 /* Sequential Number of Radio Device */
139 static int radio_nr
= -1;
141 /* Grab parameters for the device driver */
143 /* Showing parameters under SYSFS */
144 module_param(isocMode
, int, 0444);
145 module_param(video_debug
, int, 0444);
146 module_param(PowerOnAtOpen
, int, 0444);
147 module_param(video_nr
, int, 0444);
148 module_param(radio_nr
, int, 0444);
150 MODULE_PARM_DESC(isocMode
, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
151 MODULE_PARM_DESC(video_debug
, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
152 MODULE_PARM_DESC(PowerOnAtOpen
, " Set the default device to power on when device is opened. Default: 1 (On)");
153 MODULE_PARM_DESC(video_nr
, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
154 MODULE_PARM_DESC(radio_nr
, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
158 MODULE_AUTHOR(DRIVER_AUTHOR
);
159 MODULE_DESCRIPTION(DRIVER_DESC
);
160 MODULE_LICENSE(DRIVER_LICENSE
);
161 MODULE_VERSION(USBVISION_VERSION_STRING
);
162 MODULE_ALIAS(DRIVER_ALIAS
);
165 /*****************************************************************************/
166 /* SYSFS Code - Copied from the stv680.c usb module. */
167 /* Device information is located at /sys/class/video4linux/video0 */
168 /* Device parameters information is located at /sys/module/usbvision */
169 /* Device USB Information is located at */
170 /* /sys/bus/usb/drivers/USBVision Video Grabber */
171 /*****************************************************************************/
173 #define YES_NO(x) ((x) ? "Yes" : "No")
175 static inline struct usb_usbvision
*cd_to_usbvision(struct device
*cd
)
177 struct video_device
*vdev
=
178 container_of(cd
, struct video_device
, dev
);
179 return video_get_drvdata(vdev
);
182 static ssize_t
show_version(struct device
*cd
,
183 struct device_attribute
*attr
, char *buf
)
185 return sprintf(buf
, "%s\n", USBVISION_VERSION_STRING
);
187 static DEVICE_ATTR(version
, S_IRUGO
, show_version
, NULL
);
189 static ssize_t
show_model(struct device
*cd
,
190 struct device_attribute
*attr
, char *buf
)
192 struct video_device
*vdev
=
193 container_of(cd
, struct video_device
, dev
);
194 struct usb_usbvision
*usbvision
= video_get_drvdata(vdev
);
195 return sprintf(buf
, "%s\n",
196 usbvision_device_data
[usbvision
->DevModel
].ModelString
);
198 static DEVICE_ATTR(model
, S_IRUGO
, show_model
, NULL
);
200 static ssize_t
show_hue(struct device
*cd
,
201 struct device_attribute
*attr
, char *buf
)
203 struct video_device
*vdev
=
204 container_of(cd
, struct video_device
, dev
);
205 struct usb_usbvision
*usbvision
= video_get_drvdata(vdev
);
206 struct v4l2_control ctrl
;
207 ctrl
.id
= V4L2_CID_HUE
;
210 call_all(usbvision
, core
, g_ctrl
, &ctrl
);
211 return sprintf(buf
, "%d\n", ctrl
.value
);
213 static DEVICE_ATTR(hue
, S_IRUGO
, show_hue
, NULL
);
215 static ssize_t
show_contrast(struct device
*cd
,
216 struct device_attribute
*attr
, char *buf
)
218 struct video_device
*vdev
=
219 container_of(cd
, struct video_device
, dev
);
220 struct usb_usbvision
*usbvision
= video_get_drvdata(vdev
);
221 struct v4l2_control ctrl
;
222 ctrl
.id
= V4L2_CID_CONTRAST
;
225 call_all(usbvision
, core
, g_ctrl
, &ctrl
);
226 return sprintf(buf
, "%d\n", ctrl
.value
);
228 static DEVICE_ATTR(contrast
, S_IRUGO
, show_contrast
, NULL
);
230 static ssize_t
show_brightness(struct device
*cd
,
231 struct device_attribute
*attr
, char *buf
)
233 struct video_device
*vdev
=
234 container_of(cd
, struct video_device
, dev
);
235 struct usb_usbvision
*usbvision
= video_get_drvdata(vdev
);
236 struct v4l2_control ctrl
;
237 ctrl
.id
= V4L2_CID_BRIGHTNESS
;
240 call_all(usbvision
, core
, g_ctrl
, &ctrl
);
241 return sprintf(buf
, "%d\n", ctrl
.value
);
243 static DEVICE_ATTR(brightness
, S_IRUGO
, show_brightness
, NULL
);
245 static ssize_t
show_saturation(struct device
*cd
,
246 struct device_attribute
*attr
, char *buf
)
248 struct video_device
*vdev
=
249 container_of(cd
, struct video_device
, dev
);
250 struct usb_usbvision
*usbvision
= video_get_drvdata(vdev
);
251 struct v4l2_control ctrl
;
252 ctrl
.id
= V4L2_CID_SATURATION
;
255 call_all(usbvision
, core
, g_ctrl
, &ctrl
);
256 return sprintf(buf
, "%d\n", ctrl
.value
);
258 static DEVICE_ATTR(saturation
, S_IRUGO
, show_saturation
, NULL
);
260 static ssize_t
show_streaming(struct device
*cd
,
261 struct device_attribute
*attr
, char *buf
)
263 struct video_device
*vdev
=
264 container_of(cd
, struct video_device
, dev
);
265 struct usb_usbvision
*usbvision
= video_get_drvdata(vdev
);
266 return sprintf(buf
, "%s\n",
267 YES_NO(usbvision
->streaming
==Stream_On
?1:0));
269 static DEVICE_ATTR(streaming
, S_IRUGO
, show_streaming
, NULL
);
271 static ssize_t
show_compression(struct device
*cd
,
272 struct device_attribute
*attr
, char *buf
)
274 struct video_device
*vdev
=
275 container_of(cd
, struct video_device
, dev
);
276 struct usb_usbvision
*usbvision
= video_get_drvdata(vdev
);
277 return sprintf(buf
, "%s\n",
278 YES_NO(usbvision
->isocMode
==ISOC_MODE_COMPRESS
));
280 static DEVICE_ATTR(compression
, S_IRUGO
, show_compression
, NULL
);
282 static ssize_t
show_device_bridge(struct device
*cd
,
283 struct device_attribute
*attr
, char *buf
)
285 struct video_device
*vdev
=
286 container_of(cd
, struct video_device
, dev
);
287 struct usb_usbvision
*usbvision
= video_get_drvdata(vdev
);
288 return sprintf(buf
, "%d\n", usbvision
->bridgeType
);
290 static DEVICE_ATTR(bridge
, S_IRUGO
, show_device_bridge
, NULL
);
292 static void usbvision_create_sysfs(struct video_device
*vdev
)
298 res
= device_create_file(&vdev
->dev
, &dev_attr_version
);
301 res
= device_create_file(&vdev
->dev
, &dev_attr_model
);
304 res
= device_create_file(&vdev
->dev
, &dev_attr_hue
);
307 res
= device_create_file(&vdev
->dev
, &dev_attr_contrast
);
310 res
= device_create_file(&vdev
->dev
, &dev_attr_brightness
);
313 res
= device_create_file(&vdev
->dev
, &dev_attr_saturation
);
316 res
= device_create_file(&vdev
->dev
, &dev_attr_streaming
);
319 res
= device_create_file(&vdev
->dev
, &dev_attr_compression
);
322 res
= device_create_file(&vdev
->dev
, &dev_attr_bridge
);
327 dev_err(&vdev
->dev
, "%s error: %d\n", __func__
, res
);
330 static void usbvision_remove_sysfs(struct video_device
*vdev
)
333 device_remove_file(&vdev
->dev
, &dev_attr_version
);
334 device_remove_file(&vdev
->dev
, &dev_attr_model
);
335 device_remove_file(&vdev
->dev
, &dev_attr_hue
);
336 device_remove_file(&vdev
->dev
, &dev_attr_contrast
);
337 device_remove_file(&vdev
->dev
, &dev_attr_brightness
);
338 device_remove_file(&vdev
->dev
, &dev_attr_saturation
);
339 device_remove_file(&vdev
->dev
, &dev_attr_streaming
);
340 device_remove_file(&vdev
->dev
, &dev_attr_compression
);
341 device_remove_file(&vdev
->dev
, &dev_attr_bridge
);
348 * This is part of Video 4 Linux API. The driver can be opened by one
349 * client only (checks internal counter 'usbvision->user'). The procedure
350 * then allocates buffers needed for video processing.
353 static int usbvision_v4l2_open(struct file
*file
)
355 struct usb_usbvision
*usbvision
= video_drvdata(file
);
358 PDEBUG(DBG_IO
, "open");
360 mutex_lock(&usbvision
->lock
);
361 usbvision_reset_powerOffTimer(usbvision
);
366 /* Allocate memory for the scratch ring buffer */
367 errCode
= usbvision_scratch_alloc(usbvision
);
368 if (isocMode
==ISOC_MODE_COMPRESS
) {
369 /* Allocate intermediate decompression buffers
371 errCode
= usbvision_decompress_alloc(usbvision
);
374 /* Deallocate all buffers if trouble */
375 usbvision_scratch_free(usbvision
);
376 usbvision_decompress_free(usbvision
);
380 /* If so far no errors then we shall start the camera */
382 if (usbvision
->power
== 0) {
383 usbvision_power_on(usbvision
);
384 usbvision_i2c_register(usbvision
);
387 /* Send init sequence only once, it's large! */
388 if (!usbvision
->initialized
) {
390 setup_ok
= usbvision_setup(usbvision
,isocMode
);
392 usbvision
->initialized
= 1;
398 usbvision_begin_streaming(usbvision
);
399 errCode
= usbvision_init_isoc(usbvision
);
400 /* device must be initialized before isoc transfer */
401 usbvision_muxsel(usbvision
,0);
405 usbvision_i2c_unregister(usbvision
);
406 usbvision_power_off(usbvision
);
407 usbvision
->initialized
= 0;
413 usbvision_empty_framequeues(usbvision
);
415 PDEBUG(DBG_IO
, "success");
416 mutex_unlock(&usbvision
->lock
);
421 * usbvision_v4l2_close()
423 * This is part of Video 4 Linux API. The procedure
424 * stops streaming and deallocates all buffers that were earlier
425 * allocated in usbvision_v4l2_open().
428 static int usbvision_v4l2_close(struct file
*file
)
430 struct usb_usbvision
*usbvision
= video_drvdata(file
);
432 PDEBUG(DBG_IO
, "close");
433 mutex_lock(&usbvision
->lock
);
435 usbvision_audio_off(usbvision
);
436 usbvision_restart_isoc(usbvision
);
437 usbvision_stop_isoc(usbvision
);
439 usbvision_decompress_free(usbvision
);
440 usbvision_frames_free(usbvision
);
441 usbvision_empty_framequeues(usbvision
);
442 usbvision_scratch_free(usbvision
);
447 /* power off in a little while
448 to avoid off/on every close/open short sequences */
449 usbvision_set_powerOffTimer(usbvision
);
450 usbvision
->initialized
= 0;
453 mutex_unlock(&usbvision
->lock
);
455 if (usbvision
->remove_pending
) {
456 printk(KERN_INFO
"%s: Final disconnect\n", __func__
);
457 usbvision_release(usbvision
);
460 PDEBUG(DBG_IO
, "success");
468 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
471 #ifdef CONFIG_VIDEO_ADV_DEBUG
472 static int vidioc_g_register (struct file
*file
, void *priv
,
473 struct v4l2_dbg_register
*reg
)
475 struct usb_usbvision
*usbvision
= video_drvdata(file
);
478 if (!v4l2_chip_match_host(®
->match
))
480 /* NT100x has a 8-bit register space */
481 errCode
= usbvision_read_reg(usbvision
, reg
->reg
&0xff);
483 dev_err(&usbvision
->vdev
->dev
,
484 "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n",
493 static int vidioc_s_register (struct file
*file
, void *priv
,
494 struct v4l2_dbg_register
*reg
)
496 struct usb_usbvision
*usbvision
= video_drvdata(file
);
499 if (!v4l2_chip_match_host(®
->match
))
501 /* NT100x has a 8-bit register space */
502 errCode
= usbvision_write_reg(usbvision
, reg
->reg
&0xff, reg
->val
);
504 dev_err(&usbvision
->vdev
->dev
,
505 "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n",
513 static int vidioc_querycap (struct file
*file
, void *priv
,
514 struct v4l2_capability
*vc
)
516 struct usb_usbvision
*usbvision
= video_drvdata(file
);
518 strlcpy(vc
->driver
, "USBVision", sizeof(vc
->driver
));
520 usbvision_device_data
[usbvision
->DevModel
].ModelString
,
522 usb_make_path(usbvision
->dev
, vc
->bus_info
, sizeof(vc
->bus_info
));
523 vc
->version
= USBVISION_DRIVER_VERSION
;
524 vc
->capabilities
= V4L2_CAP_VIDEO_CAPTURE
|
528 (usbvision
->have_tuner
? V4L2_CAP_TUNER
: 0);
532 static int vidioc_enum_input (struct file
*file
, void *priv
,
533 struct v4l2_input
*vi
)
535 struct usb_usbvision
*usbvision
= video_drvdata(file
);
538 if (vi
->index
>= usbvision
->video_inputs
)
540 if (usbvision
->have_tuner
) {
543 chan
= vi
->index
+ 1; /*skip Television string*/
545 /* Determine the requested input characteristics
546 specific for each usbvision card model */
549 if (usbvision_device_data
[usbvision
->DevModel
].VideoChannels
== 4) {
550 strcpy(vi
->name
, "White Video Input");
552 strcpy(vi
->name
, "Television");
553 vi
->type
= V4L2_INPUT_TYPE_TUNER
;
556 vi
->std
= USBVISION_NORMS
;
560 vi
->type
= V4L2_INPUT_TYPE_CAMERA
;
561 if (usbvision_device_data
[usbvision
->DevModel
].VideoChannels
== 4) {
562 strcpy(vi
->name
, "Green Video Input");
564 strcpy(vi
->name
, "Composite Video Input");
566 vi
->std
= V4L2_STD_PAL
;
569 vi
->type
= V4L2_INPUT_TYPE_CAMERA
;
570 if (usbvision_device_data
[usbvision
->DevModel
].VideoChannels
== 4) {
571 strcpy(vi
->name
, "Yellow Video Input");
573 strcpy(vi
->name
, "S-Video Input");
575 vi
->std
= V4L2_STD_PAL
;
578 vi
->type
= V4L2_INPUT_TYPE_CAMERA
;
579 strcpy(vi
->name
, "Red Video Input");
580 vi
->std
= V4L2_STD_PAL
;
586 static int vidioc_g_input (struct file
*file
, void *priv
, unsigned int *input
)
588 struct usb_usbvision
*usbvision
= video_drvdata(file
);
590 *input
= usbvision
->ctl_input
;
594 static int vidioc_s_input (struct file
*file
, void *priv
, unsigned int input
)
596 struct usb_usbvision
*usbvision
= video_drvdata(file
);
598 if (input
>= usbvision
->video_inputs
)
601 mutex_lock(&usbvision
->lock
);
602 usbvision_muxsel(usbvision
, input
);
603 usbvision_set_input(usbvision
);
604 usbvision_set_output(usbvision
,
606 usbvision
->curheight
);
607 mutex_unlock(&usbvision
->lock
);
611 static int vidioc_s_std (struct file
*file
, void *priv
, v4l2_std_id
*id
)
613 struct usb_usbvision
*usbvision
= video_drvdata(file
);
615 usbvision
->tvnormId
=*id
;
617 mutex_lock(&usbvision
->lock
);
618 call_all(usbvision
, core
, s_std
, usbvision
->tvnormId
);
619 mutex_unlock(&usbvision
->lock
);
620 /* propagate the change to the decoder */
621 usbvision_muxsel(usbvision
, usbvision
->ctl_input
);
626 static int vidioc_g_tuner (struct file
*file
, void *priv
,
627 struct v4l2_tuner
*vt
)
629 struct usb_usbvision
*usbvision
= video_drvdata(file
);
631 if (!usbvision
->have_tuner
|| vt
->index
) // Only tuner 0
633 if(usbvision
->radio
) {
634 strcpy(vt
->name
, "Radio");
635 vt
->type
= V4L2_TUNER_RADIO
;
637 strcpy(vt
->name
, "Television");
639 /* Let clients fill in the remainder of this struct */
640 call_all(usbvision
, tuner
, g_tuner
, vt
);
645 static int vidioc_s_tuner (struct file
*file
, void *priv
,
646 struct v4l2_tuner
*vt
)
648 struct usb_usbvision
*usbvision
= video_drvdata(file
);
650 // Only no or one tuner for now
651 if (!usbvision
->have_tuner
|| vt
->index
)
653 /* let clients handle this */
654 call_all(usbvision
, tuner
, s_tuner
, vt
);
659 static int vidioc_g_frequency (struct file
*file
, void *priv
,
660 struct v4l2_frequency
*freq
)
662 struct usb_usbvision
*usbvision
= video_drvdata(file
);
664 freq
->tuner
= 0; // Only one tuner
665 if(usbvision
->radio
) {
666 freq
->type
= V4L2_TUNER_RADIO
;
668 freq
->type
= V4L2_TUNER_ANALOG_TV
;
670 freq
->frequency
= usbvision
->freq
;
675 static int vidioc_s_frequency (struct file
*file
, void *priv
,
676 struct v4l2_frequency
*freq
)
678 struct usb_usbvision
*usbvision
= video_drvdata(file
);
680 // Only no or one tuner for now
681 if (!usbvision
->have_tuner
|| freq
->tuner
)
684 usbvision
->freq
= freq
->frequency
;
685 call_all(usbvision
, tuner
, s_frequency
, freq
);
690 static int vidioc_g_audio (struct file
*file
, void *priv
, struct v4l2_audio
*a
)
692 struct usb_usbvision
*usbvision
= video_drvdata(file
);
694 if(usbvision
->radio
) {
695 strcpy(a
->name
,"Radio");
697 strcpy(a
->name
, "TV");
703 static int vidioc_s_audio (struct file
*file
, void *fh
,
704 struct v4l2_audio
*a
)
713 static int vidioc_queryctrl (struct file
*file
, void *priv
,
714 struct v4l2_queryctrl
*ctrl
)
716 struct usb_usbvision
*usbvision
= video_drvdata(file
);
718 call_all(usbvision
, core
, queryctrl
, ctrl
);
726 static int vidioc_g_ctrl (struct file
*file
, void *priv
,
727 struct v4l2_control
*ctrl
)
729 struct usb_usbvision
*usbvision
= video_drvdata(file
);
730 call_all(usbvision
, core
, g_ctrl
, ctrl
);
735 static int vidioc_s_ctrl (struct file
*file
, void *priv
,
736 struct v4l2_control
*ctrl
)
738 struct usb_usbvision
*usbvision
= video_drvdata(file
);
739 call_all(usbvision
, core
, s_ctrl
, ctrl
);
744 static int vidioc_reqbufs (struct file
*file
,
745 void *priv
, struct v4l2_requestbuffers
*vr
)
747 struct usb_usbvision
*usbvision
= video_drvdata(file
);
750 RESTRICT_TO_RANGE(vr
->count
,1,USBVISION_NUMFRAMES
);
752 /* Check input validity:
753 the user must do a VIDEO CAPTURE and MMAP method. */
754 if (vr
->memory
!= V4L2_MEMORY_MMAP
)
757 if(usbvision
->streaming
== Stream_On
) {
758 if ((ret
= usbvision_stream_interrupt(usbvision
)))
762 usbvision_frames_free(usbvision
);
763 usbvision_empty_framequeues(usbvision
);
764 vr
->count
= usbvision_frames_alloc(usbvision
,vr
->count
);
766 usbvision
->curFrame
= NULL
;
771 static int vidioc_querybuf (struct file
*file
,
772 void *priv
, struct v4l2_buffer
*vb
)
774 struct usb_usbvision
*usbvision
= video_drvdata(file
);
775 struct usbvision_frame
*frame
;
777 /* FIXME : must control
778 that buffers are mapped (VIDIOC_REQBUFS has been called) */
779 if(vb
->index
>=usbvision
->num_frames
) {
782 /* Updating the corresponding frame state */
784 frame
= &usbvision
->frame
[vb
->index
];
785 if(frame
->grabstate
>= FrameState_Ready
)
786 vb
->flags
|= V4L2_BUF_FLAG_QUEUED
;
787 if(frame
->grabstate
>= FrameState_Done
)
788 vb
->flags
|= V4L2_BUF_FLAG_DONE
;
789 if(frame
->grabstate
== FrameState_Unused
)
790 vb
->flags
|= V4L2_BUF_FLAG_MAPPED
;
791 vb
->memory
= V4L2_MEMORY_MMAP
;
793 vb
->m
.offset
= vb
->index
*PAGE_ALIGN(usbvision
->max_frame_size
);
795 vb
->memory
= V4L2_MEMORY_MMAP
;
796 vb
->field
= V4L2_FIELD_NONE
;
797 vb
->length
= usbvision
->curwidth
*
798 usbvision
->curheight
*
799 usbvision
->palette
.bytes_per_pixel
;
800 vb
->timestamp
= usbvision
->frame
[vb
->index
].timestamp
;
801 vb
->sequence
= usbvision
->frame
[vb
->index
].sequence
;
805 static int vidioc_qbuf (struct file
*file
, void *priv
, struct v4l2_buffer
*vb
)
807 struct usb_usbvision
*usbvision
= video_drvdata(file
);
808 struct usbvision_frame
*frame
;
809 unsigned long lock_flags
;
811 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
812 if(vb
->index
>=usbvision
->num_frames
) {
816 frame
= &usbvision
->frame
[vb
->index
];
818 if (frame
->grabstate
!= FrameState_Unused
) {
822 /* Mark it as ready and enqueue frame */
823 frame
->grabstate
= FrameState_Ready
;
824 frame
->scanstate
= ScanState_Scanning
;
825 frame
->scanlength
= 0; /* Accumulated in usbvision_parse_data() */
827 vb
->flags
&= ~V4L2_BUF_FLAG_DONE
;
829 /* set v4l2_format index */
830 frame
->v4l2_format
= usbvision
->palette
;
832 spin_lock_irqsave(&usbvision
->queue_lock
, lock_flags
);
833 list_add_tail(&usbvision
->frame
[vb
->index
].frame
, &usbvision
->inqueue
);
834 spin_unlock_irqrestore(&usbvision
->queue_lock
, lock_flags
);
839 static int vidioc_dqbuf (struct file
*file
, void *priv
, struct v4l2_buffer
*vb
)
841 struct usb_usbvision
*usbvision
= video_drvdata(file
);
843 struct usbvision_frame
*f
;
844 unsigned long lock_flags
;
846 if (list_empty(&(usbvision
->outqueue
))) {
847 if (usbvision
->streaming
== Stream_Idle
)
849 ret
= wait_event_interruptible
850 (usbvision
->wait_frame
,
851 !list_empty(&(usbvision
->outqueue
)));
856 spin_lock_irqsave(&usbvision
->queue_lock
, lock_flags
);
857 f
= list_entry(usbvision
->outqueue
.next
,
858 struct usbvision_frame
, frame
);
859 list_del(usbvision
->outqueue
.next
);
860 spin_unlock_irqrestore(&usbvision
->queue_lock
, lock_flags
);
862 f
->grabstate
= FrameState_Unused
;
864 vb
->memory
= V4L2_MEMORY_MMAP
;
865 vb
->flags
= V4L2_BUF_FLAG_MAPPED
|
866 V4L2_BUF_FLAG_QUEUED
|
868 vb
->index
= f
->index
;
869 vb
->sequence
= f
->sequence
;
870 vb
->timestamp
= f
->timestamp
;
871 vb
->field
= V4L2_FIELD_NONE
;
872 vb
->bytesused
= f
->scanlength
;
877 static int vidioc_streamon(struct file
*file
, void *priv
, enum v4l2_buf_type i
)
879 struct usb_usbvision
*usbvision
= video_drvdata(file
);
881 usbvision
->streaming
= Stream_On
;
882 call_all(usbvision
, video
, s_stream
, 1);
887 static int vidioc_streamoff(struct file
*file
,
888 void *priv
, enum v4l2_buf_type type
)
890 struct usb_usbvision
*usbvision
= video_drvdata(file
);
892 if (type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
895 if(usbvision
->streaming
== Stream_On
) {
896 usbvision_stream_interrupt(usbvision
);
897 /* Stop all video streamings */
898 call_all(usbvision
, video
, s_stream
, 0);
900 usbvision_empty_framequeues(usbvision
);
905 static int vidioc_enum_fmt_vid_cap (struct file
*file
, void *priv
,
906 struct v4l2_fmtdesc
*vfd
)
908 if(vfd
->index
>=USBVISION_SUPPORTED_PALETTES
-1) {
911 strcpy(vfd
->description
,usbvision_v4l2_format
[vfd
->index
].desc
);
912 vfd
->pixelformat
= usbvision_v4l2_format
[vfd
->index
].format
;
916 static int vidioc_g_fmt_vid_cap (struct file
*file
, void *priv
,
917 struct v4l2_format
*vf
)
919 struct usb_usbvision
*usbvision
= video_drvdata(file
);
920 vf
->fmt
.pix
.width
= usbvision
->curwidth
;
921 vf
->fmt
.pix
.height
= usbvision
->curheight
;
922 vf
->fmt
.pix
.pixelformat
= usbvision
->palette
.format
;
923 vf
->fmt
.pix
.bytesperline
=
924 usbvision
->curwidth
*usbvision
->palette
.bytes_per_pixel
;
925 vf
->fmt
.pix
.sizeimage
= vf
->fmt
.pix
.bytesperline
*usbvision
->curheight
;
926 vf
->fmt
.pix
.colorspace
= V4L2_COLORSPACE_SMPTE170M
;
927 vf
->fmt
.pix
.field
= V4L2_FIELD_NONE
; /* Always progressive image */
932 static int vidioc_try_fmt_vid_cap (struct file
*file
, void *priv
,
933 struct v4l2_format
*vf
)
935 struct usb_usbvision
*usbvision
= video_drvdata(file
);
938 /* Find requested format in available ones */
939 for(formatIdx
=0;formatIdx
<USBVISION_SUPPORTED_PALETTES
;formatIdx
++) {
940 if(vf
->fmt
.pix
.pixelformat
==
941 usbvision_v4l2_format
[formatIdx
].format
) {
942 usbvision
->palette
= usbvision_v4l2_format
[formatIdx
];
947 if(formatIdx
== USBVISION_SUPPORTED_PALETTES
) {
950 RESTRICT_TO_RANGE(vf
->fmt
.pix
.width
, MIN_FRAME_WIDTH
, MAX_FRAME_WIDTH
);
951 RESTRICT_TO_RANGE(vf
->fmt
.pix
.height
, MIN_FRAME_HEIGHT
, MAX_FRAME_HEIGHT
);
953 vf
->fmt
.pix
.bytesperline
= vf
->fmt
.pix
.width
*
954 usbvision
->palette
.bytes_per_pixel
;
955 vf
->fmt
.pix
.sizeimage
= vf
->fmt
.pix
.bytesperline
*vf
->fmt
.pix
.height
;
960 static int vidioc_s_fmt_vid_cap(struct file
*file
, void *priv
,
961 struct v4l2_format
*vf
)
963 struct usb_usbvision
*usbvision
= video_drvdata(file
);
966 if( 0 != (ret
=vidioc_try_fmt_vid_cap (file
, priv
, vf
)) ) {
970 /* stop io in case it is already in progress */
971 if(usbvision
->streaming
== Stream_On
) {
972 if ((ret
= usbvision_stream_interrupt(usbvision
)))
975 usbvision_frames_free(usbvision
);
976 usbvision_empty_framequeues(usbvision
);
978 usbvision
->curFrame
= NULL
;
980 /* by now we are committed to the new data... */
981 mutex_lock(&usbvision
->lock
);
982 usbvision_set_output(usbvision
, vf
->fmt
.pix
.width
, vf
->fmt
.pix
.height
);
983 mutex_unlock(&usbvision
->lock
);
988 static ssize_t
usbvision_v4l2_read(struct file
*file
, char __user
*buf
,
989 size_t count
, loff_t
*ppos
)
991 struct usb_usbvision
*usbvision
= video_drvdata(file
);
992 int noblock
= file
->f_flags
& O_NONBLOCK
;
993 unsigned long lock_flags
;
996 struct usbvision_frame
*frame
;
998 PDEBUG(DBG_IO
, "%s: %ld bytes, noblock=%d", __func__
,
999 (unsigned long)count
, noblock
);
1001 if (!USBVISION_IS_OPERATIONAL(usbvision
) || (buf
== NULL
))
1004 /* This entry point is compatible with the mmap routines
1005 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1006 to get frames or call read on the device. */
1007 if(!usbvision
->num_frames
) {
1008 /* First, allocate some frames to work with
1009 if this has not been done with VIDIOC_REQBUF */
1010 usbvision_frames_free(usbvision
);
1011 usbvision_empty_framequeues(usbvision
);
1012 usbvision_frames_alloc(usbvision
,USBVISION_NUMFRAMES
);
1015 if(usbvision
->streaming
!= Stream_On
) {
1016 /* no stream is running, make it running ! */
1017 usbvision
->streaming
= Stream_On
;
1018 call_all(usbvision
, video
, s_stream
, 1);
1021 /* Then, enqueue as many frames as possible
1022 (like a user of VIDIOC_QBUF would do) */
1023 for(i
=0;i
<usbvision
->num_frames
;i
++) {
1024 frame
= &usbvision
->frame
[i
];
1025 if(frame
->grabstate
== FrameState_Unused
) {
1026 /* Mark it as ready and enqueue frame */
1027 frame
->grabstate
= FrameState_Ready
;
1028 frame
->scanstate
= ScanState_Scanning
;
1029 /* Accumulated in usbvision_parse_data() */
1030 frame
->scanlength
= 0;
1032 /* set v4l2_format index */
1033 frame
->v4l2_format
= usbvision
->palette
;
1035 spin_lock_irqsave(&usbvision
->queue_lock
, lock_flags
);
1036 list_add_tail(&frame
->frame
, &usbvision
->inqueue
);
1037 spin_unlock_irqrestore(&usbvision
->queue_lock
,
1042 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1043 if (list_empty(&(usbvision
->outqueue
))) {
1047 ret
= wait_event_interruptible
1048 (usbvision
->wait_frame
,
1049 !list_empty(&(usbvision
->outqueue
)));
1054 spin_lock_irqsave(&usbvision
->queue_lock
, lock_flags
);
1055 frame
= list_entry(usbvision
->outqueue
.next
,
1056 struct usbvision_frame
, frame
);
1057 list_del(usbvision
->outqueue
.next
);
1058 spin_unlock_irqrestore(&usbvision
->queue_lock
, lock_flags
);
1060 /* An error returns an empty frame */
1061 if (frame
->grabstate
== FrameState_Error
) {
1062 frame
->bytes_read
= 0;
1066 PDEBUG(DBG_IO
, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1068 frame
->index
, frame
->bytes_read
, frame
->scanlength
);
1070 /* copy bytes to user space; we allow for partials reads */
1071 if ((count
+ frame
->bytes_read
) > (unsigned long)frame
->scanlength
)
1072 count
= frame
->scanlength
- frame
->bytes_read
;
1074 if (copy_to_user(buf
, frame
->data
+ frame
->bytes_read
, count
)) {
1078 frame
->bytes_read
+= count
;
1079 PDEBUG(DBG_IO
, "%s: {copy} count used=%ld, new bytes_read=%ld",
1081 (unsigned long)count
, frame
->bytes_read
);
1083 /* For now, forget the frame if it has not been read in one shot. */
1084 /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1085 frame
->bytes_read
= 0;
1087 /* Mark it as available to be used again. */
1088 frame
->grabstate
= FrameState_Unused
;
1094 static int usbvision_v4l2_mmap(struct file
*file
, struct vm_area_struct
*vma
)
1096 unsigned long size
= vma
->vm_end
- vma
->vm_start
,
1097 start
= vma
->vm_start
;
1100 struct usb_usbvision
*usbvision
= video_drvdata(file
);
1102 PDEBUG(DBG_MMAP
, "mmap");
1104 mutex_lock(&usbvision
->lock
);
1106 if (!USBVISION_IS_OPERATIONAL(usbvision
)) {
1107 mutex_unlock(&usbvision
->lock
);
1111 if (!(vma
->vm_flags
& VM_WRITE
) ||
1112 size
!= PAGE_ALIGN(usbvision
->max_frame_size
)) {
1113 mutex_unlock(&usbvision
->lock
);
1117 for (i
= 0; i
< usbvision
->num_frames
; i
++) {
1118 if (((PAGE_ALIGN(usbvision
->max_frame_size
)*i
) >> PAGE_SHIFT
) ==
1122 if (i
== usbvision
->num_frames
) {
1124 "mmap: user supplied mapping address is out of range");
1125 mutex_unlock(&usbvision
->lock
);
1129 /* VM_IO is eventually going to replace PageReserved altogether */
1130 vma
->vm_flags
|= VM_IO
;
1131 vma
->vm_flags
|= VM_RESERVED
; /* avoid to swap out this VMA */
1133 pos
= usbvision
->frame
[i
].data
;
1136 if (vm_insert_page(vma
, start
, vmalloc_to_page(pos
))) {
1137 PDEBUG(DBG_MMAP
, "mmap: vm_insert_page failed");
1138 mutex_unlock(&usbvision
->lock
);
1146 mutex_unlock(&usbvision
->lock
);
1152 * Here comes the stuff for radio on usbvision based devices
1155 static int usbvision_radio_open(struct file
*file
)
1157 struct usb_usbvision
*usbvision
= video_drvdata(file
);
1160 PDEBUG(DBG_IO
, "%s:", __func__
);
1162 mutex_lock(&usbvision
->lock
);
1164 if (usbvision
->user
) {
1165 dev_err(&usbvision
->rdev
->dev
,
1166 "%s: Someone tried to open an already opened USBVision Radio!\n",
1172 usbvision_reset_powerOffTimer(usbvision
);
1173 if (usbvision
->power
== 0) {
1174 usbvision_power_on(usbvision
);
1175 usbvision_i2c_register(usbvision
);
1179 /* Alternate interface 1 is is the biggest frame size */
1180 errCode
= usbvision_set_alternate(usbvision
);
1182 usbvision
->last_error
= errCode
;
1187 // If so far no errors then we shall start the radio
1188 usbvision
->radio
= 1;
1189 call_all(usbvision
, tuner
, s_radio
);
1190 usbvision_set_audio(usbvision
, USBVISION_AUDIO_RADIO
);
1195 if (PowerOnAtOpen
) {
1196 usbvision_i2c_unregister(usbvision
);
1197 usbvision_power_off(usbvision
);
1198 usbvision
->initialized
= 0;
1202 mutex_unlock(&usbvision
->lock
);
1207 static int usbvision_radio_close(struct file
*file
)
1209 struct usb_usbvision
*usbvision
= video_drvdata(file
);
1214 mutex_lock(&usbvision
->lock
);
1216 /* Set packet size to 0 */
1217 usbvision
->ifaceAlt
=0;
1218 errCode
= usb_set_interface(usbvision
->dev
, usbvision
->iface
,
1219 usbvision
->ifaceAlt
);
1221 usbvision_audio_off(usbvision
);
1225 if (PowerOnAtOpen
) {
1226 usbvision_set_powerOffTimer(usbvision
);
1227 usbvision
->initialized
= 0;
1230 mutex_unlock(&usbvision
->lock
);
1232 if (usbvision
->remove_pending
) {
1233 printk(KERN_INFO
"%s: Final disconnect\n", __func__
);
1234 usbvision_release(usbvision
);
1237 PDEBUG(DBG_IO
, "success");
1242 // Video registration stuff
1246 static const struct v4l2_file_operations usbvision_fops
= {
1247 .owner
= THIS_MODULE
,
1248 .open
= usbvision_v4l2_open
,
1249 .release
= usbvision_v4l2_close
,
1250 .read
= usbvision_v4l2_read
,
1251 .mmap
= usbvision_v4l2_mmap
,
1252 .ioctl
= video_ioctl2
,
1253 /* .poll = video_poll, */
1256 static const struct v4l2_ioctl_ops usbvision_ioctl_ops
= {
1257 .vidioc_querycap
= vidioc_querycap
,
1258 .vidioc_enum_fmt_vid_cap
= vidioc_enum_fmt_vid_cap
,
1259 .vidioc_g_fmt_vid_cap
= vidioc_g_fmt_vid_cap
,
1260 .vidioc_try_fmt_vid_cap
= vidioc_try_fmt_vid_cap
,
1261 .vidioc_s_fmt_vid_cap
= vidioc_s_fmt_vid_cap
,
1262 .vidioc_reqbufs
= vidioc_reqbufs
,
1263 .vidioc_querybuf
= vidioc_querybuf
,
1264 .vidioc_qbuf
= vidioc_qbuf
,
1265 .vidioc_dqbuf
= vidioc_dqbuf
,
1266 .vidioc_s_std
= vidioc_s_std
,
1267 .vidioc_enum_input
= vidioc_enum_input
,
1268 .vidioc_g_input
= vidioc_g_input
,
1269 .vidioc_s_input
= vidioc_s_input
,
1270 .vidioc_queryctrl
= vidioc_queryctrl
,
1271 .vidioc_g_audio
= vidioc_g_audio
,
1272 .vidioc_s_audio
= vidioc_s_audio
,
1273 .vidioc_g_ctrl
= vidioc_g_ctrl
,
1274 .vidioc_s_ctrl
= vidioc_s_ctrl
,
1275 .vidioc_streamon
= vidioc_streamon
,
1276 .vidioc_streamoff
= vidioc_streamoff
,
1277 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1278 /* .vidiocgmbuf = vidiocgmbuf, */
1280 .vidioc_g_tuner
= vidioc_g_tuner
,
1281 .vidioc_s_tuner
= vidioc_s_tuner
,
1282 .vidioc_g_frequency
= vidioc_g_frequency
,
1283 .vidioc_s_frequency
= vidioc_s_frequency
,
1284 #ifdef CONFIG_VIDEO_ADV_DEBUG
1285 .vidioc_g_register
= vidioc_g_register
,
1286 .vidioc_s_register
= vidioc_s_register
,
1290 static struct video_device usbvision_video_template
= {
1291 .fops
= &usbvision_fops
,
1292 .ioctl_ops
= &usbvision_ioctl_ops
,
1293 .name
= "usbvision-video",
1294 .release
= video_device_release
,
1295 .tvnorms
= USBVISION_NORMS
,
1296 .current_norm
= V4L2_STD_PAL
1301 static const struct v4l2_file_operations usbvision_radio_fops
= {
1302 .owner
= THIS_MODULE
,
1303 .open
= usbvision_radio_open
,
1304 .release
= usbvision_radio_close
,
1305 .ioctl
= video_ioctl2
,
1308 static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops
= {
1309 .vidioc_querycap
= vidioc_querycap
,
1310 .vidioc_enum_input
= vidioc_enum_input
,
1311 .vidioc_g_input
= vidioc_g_input
,
1312 .vidioc_s_input
= vidioc_s_input
,
1313 .vidioc_queryctrl
= vidioc_queryctrl
,
1314 .vidioc_g_audio
= vidioc_g_audio
,
1315 .vidioc_s_audio
= vidioc_s_audio
,
1316 .vidioc_g_ctrl
= vidioc_g_ctrl
,
1317 .vidioc_s_ctrl
= vidioc_s_ctrl
,
1318 .vidioc_g_tuner
= vidioc_g_tuner
,
1319 .vidioc_s_tuner
= vidioc_s_tuner
,
1320 .vidioc_g_frequency
= vidioc_g_frequency
,
1321 .vidioc_s_frequency
= vidioc_s_frequency
,
1324 static struct video_device usbvision_radio_template
= {
1325 .fops
= &usbvision_radio_fops
,
1326 .name
= "usbvision-radio",
1327 .release
= video_device_release
,
1328 .ioctl_ops
= &usbvision_radio_ioctl_ops
,
1330 .tvnorms
= USBVISION_NORMS
,
1331 .current_norm
= V4L2_STD_PAL
1335 static struct video_device
*usbvision_vdev_init(struct usb_usbvision
*usbvision
,
1336 struct video_device
*vdev_template
,
1339 struct usb_device
*usb_dev
= usbvision
->dev
;
1340 struct video_device
*vdev
;
1342 if (usb_dev
== NULL
) {
1343 dev_err(&usbvision
->dev
->dev
,
1344 "%s: usbvision->dev is not set\n", __func__
);
1348 vdev
= video_device_alloc();
1352 *vdev
= *vdev_template
;
1353 vdev
->v4l2_dev
= &usbvision
->v4l2_dev
;
1354 snprintf(vdev
->name
, sizeof(vdev
->name
), "%s", name
);
1355 video_set_drvdata(vdev
, usbvision
);
1359 // unregister video4linux devices
1360 static void usbvision_unregister_video(struct usb_usbvision
*usbvision
)
1363 if (usbvision
->rdev
) {
1364 PDEBUG(DBG_PROBE
, "unregister %s [v4l2]",
1365 video_device_node_name(usbvision
->rdev
));
1366 if (video_is_registered(usbvision
->rdev
)) {
1367 video_unregister_device(usbvision
->rdev
);
1369 video_device_release(usbvision
->rdev
);
1371 usbvision
->rdev
= NULL
;
1375 if (usbvision
->vdev
) {
1376 PDEBUG(DBG_PROBE
, "unregister %s [v4l2]",
1377 video_device_node_name(usbvision
->vdev
));
1378 if (video_is_registered(usbvision
->vdev
)) {
1379 video_unregister_device(usbvision
->vdev
);
1381 video_device_release(usbvision
->vdev
);
1383 usbvision
->vdev
= NULL
;
1387 // register video4linux devices
1388 static int __devinit
usbvision_register_video(struct usb_usbvision
*usbvision
)
1391 usbvision
->vdev
= usbvision_vdev_init(usbvision
,
1392 &usbvision_video_template
,
1394 if (usbvision
->vdev
== NULL
) {
1397 if (video_register_device(usbvision
->vdev
,
1402 printk(KERN_INFO
"USBVision[%d]: registered USBVision Video device %s [v4l2]\n",
1403 usbvision
->nr
, video_device_node_name(usbvision
->vdev
));
1406 if (usbvision_device_data
[usbvision
->DevModel
].Radio
) {
1407 // usbvision has radio
1408 usbvision
->rdev
= usbvision_vdev_init(usbvision
,
1409 &usbvision_radio_template
,
1411 if (usbvision
->rdev
== NULL
) {
1414 if (video_register_device(usbvision
->rdev
,
1419 printk(KERN_INFO
"USBVision[%d]: registered USBVision Radio device %s [v4l2]\n",
1420 usbvision
->nr
, video_device_node_name(usbvision
->rdev
));
1426 dev_err(&usbvision
->dev
->dev
,
1427 "USBVision[%d]: video_register_device() failed\n",
1429 usbvision_unregister_video(usbvision
);
1436 * This code allocates the struct usb_usbvision.
1437 * It is filled with default values.
1439 * Returns NULL on error, a pointer to usb_usbvision else.
1442 static struct usb_usbvision
*usbvision_alloc(struct usb_device
*dev
,
1443 struct usb_interface
*intf
)
1445 struct usb_usbvision
*usbvision
;
1447 usbvision
= kzalloc(sizeof(struct usb_usbvision
), GFP_KERNEL
);
1448 if (usbvision
== NULL
)
1451 usbvision
->dev
= dev
;
1452 if (v4l2_device_register(&intf
->dev
, &usbvision
->v4l2_dev
))
1455 mutex_init(&usbvision
->lock
); /* available */
1457 // prepare control urb for control messages during interrupts
1458 usbvision
->ctrlUrb
= usb_alloc_urb(USBVISION_URB_FRAMES
, GFP_KERNEL
);
1459 if (usbvision
->ctrlUrb
== NULL
)
1461 init_waitqueue_head(&usbvision
->ctrlUrb_wq
);
1463 usbvision_init_powerOffTimer(usbvision
);
1468 v4l2_device_unregister(&usbvision
->v4l2_dev
);
1475 * usbvision_release()
1477 * This code does final release of struct usb_usbvision. This happens
1478 * after the device is disconnected -and- all clients closed their files.
1481 static void usbvision_release(struct usb_usbvision
*usbvision
)
1483 PDEBUG(DBG_PROBE
, "");
1485 mutex_lock(&usbvision
->lock
);
1487 usbvision_reset_powerOffTimer(usbvision
);
1489 usbvision
->initialized
= 0;
1491 mutex_unlock(&usbvision
->lock
);
1493 usbvision_remove_sysfs(usbvision
->vdev
);
1494 usbvision_unregister_video(usbvision
);
1496 if (usbvision
->ctrlUrb
) {
1497 usb_free_urb(usbvision
->ctrlUrb
);
1500 v4l2_device_unregister(&usbvision
->v4l2_dev
);
1503 PDEBUG(DBG_PROBE
, "success");
1507 /*********************** usb interface **********************************/
1509 static void usbvision_configure_video(struct usb_usbvision
*usbvision
)
1513 if (usbvision
== NULL
)
1516 model
= usbvision
->DevModel
;
1517 usbvision
->palette
= usbvision_v4l2_format
[2]; // V4L2_PIX_FMT_RGB24;
1519 if (usbvision_device_data
[usbvision
->DevModel
].Vin_Reg2_override
) {
1520 usbvision
->Vin_Reg2_Preset
=
1521 usbvision_device_data
[usbvision
->DevModel
].Vin_Reg2
;
1523 usbvision
->Vin_Reg2_Preset
= 0;
1526 usbvision
->tvnormId
= usbvision_device_data
[model
].VideoNorm
;
1528 usbvision
->video_inputs
= usbvision_device_data
[model
].VideoChannels
;
1529 usbvision
->ctl_input
= 0;
1531 /* This should be here to make i2c clients to be able to register */
1532 /* first switch off audio */
1533 usbvision_audio_off(usbvision
);
1534 if (!PowerOnAtOpen
) {
1535 /* and then power up the noisy tuner */
1536 usbvision_power_on(usbvision
);
1537 usbvision_i2c_register(usbvision
);
1544 * This procedure queries device descriptor and accepts the interface
1545 * if it looks like USBVISION video device
1548 static int __devinit
usbvision_probe(struct usb_interface
*intf
,
1549 const struct usb_device_id
*devid
)
1551 struct usb_device
*dev
= usb_get_dev(interface_to_usbdev(intf
));
1552 struct usb_interface
*uif
;
1553 __u8 ifnum
= intf
->altsetting
->desc
.bInterfaceNumber
;
1554 const struct usb_host_interface
*interface
;
1555 struct usb_usbvision
*usbvision
= NULL
;
1556 const struct usb_endpoint_descriptor
*endpoint
;
1559 PDEBUG(DBG_PROBE
, "VID=%#04x, PID=%#04x, ifnum=%u",
1560 dev
->descriptor
.idVendor
,
1561 dev
->descriptor
.idProduct
, ifnum
);
1563 model
= devid
->driver_info
;
1564 if ( (model
<0) || (model
>=usbvision_device_data_size
) ) {
1565 PDEBUG(DBG_PROBE
, "model out of bounds %d",model
);
1568 printk(KERN_INFO
"%s: %s found\n", __func__
,
1569 usbvision_device_data
[model
].ModelString
);
1571 if (usbvision_device_data
[model
].Interface
>= 0) {
1572 interface
= &dev
->actconfig
->interface
[usbvision_device_data
[model
].Interface
]->altsetting
[0];
1574 interface
= &dev
->actconfig
->interface
[ifnum
]->altsetting
[0];
1576 endpoint
= &interface
->endpoint
[1].desc
;
1577 if (!usb_endpoint_xfer_isoc(endpoint
)) {
1578 dev_err(&intf
->dev
, "%s: interface %d. has non-ISO endpoint!\n",
1580 dev_err(&intf
->dev
, "%s: Endpoint attributes %d",
1581 __func__
, endpoint
->bmAttributes
);
1584 if (usb_endpoint_dir_out(endpoint
)) {
1585 dev_err(&intf
->dev
, "%s: interface %d. has ISO OUT endpoint!\n",
1590 usbvision
= usbvision_alloc(dev
, intf
);
1591 if (usbvision
== NULL
) {
1592 dev_err(&intf
->dev
, "%s: couldn't allocate USBVision struct\n", __func__
);
1596 if (dev
->descriptor
.bNumConfigurations
> 1) {
1597 usbvision
->bridgeType
= BRIDGE_NT1004
;
1598 } else if (model
== DAZZLE_DVC_90_REV_1_SECAM
) {
1599 usbvision
->bridgeType
= BRIDGE_NT1005
;
1601 usbvision
->bridgeType
= BRIDGE_NT1003
;
1603 PDEBUG(DBG_PROBE
, "bridgeType %d", usbvision
->bridgeType
);
1605 mutex_lock(&usbvision
->lock
);
1607 /* compute alternate max packet sizes */
1608 uif
= dev
->actconfig
->interface
[0];
1610 usbvision
->num_alt
=uif
->num_altsetting
;
1611 PDEBUG(DBG_PROBE
, "Alternate settings: %i",usbvision
->num_alt
);
1612 usbvision
->alt_max_pkt_size
= kmalloc(32*
1613 usbvision
->num_alt
,GFP_KERNEL
);
1614 if (usbvision
->alt_max_pkt_size
== NULL
) {
1615 dev_err(&intf
->dev
, "usbvision: out of memory!\n");
1616 mutex_unlock(&usbvision
->lock
);
1620 for (i
= 0; i
< usbvision
->num_alt
; i
++) {
1621 u16 tmp
= le16_to_cpu(uif
->altsetting
[i
].endpoint
[1].desc
.
1623 usbvision
->alt_max_pkt_size
[i
] =
1624 (tmp
& 0x07ff) * (((tmp
& 0x1800) >> 11) + 1);
1625 PDEBUG(DBG_PROBE
, "Alternate setting %i, max size= %i",i
,
1626 usbvision
->alt_max_pkt_size
[i
]);
1630 usbvision
->nr
= usbvision_nr
++;
1632 usbvision
->have_tuner
= usbvision_device_data
[model
].Tuner
;
1633 if (usbvision
->have_tuner
) {
1634 usbvision
->tuner_type
= usbvision_device_data
[model
].TunerType
;
1637 usbvision
->DevModel
= model
;
1638 usbvision
->remove_pending
= 0;
1639 usbvision
->iface
= ifnum
;
1640 usbvision
->ifaceAlt
= 0;
1641 usbvision
->video_endp
= endpoint
->bEndpointAddress
;
1642 usbvision
->isocPacketSize
= 0;
1643 usbvision
->usb_bandwidth
= 0;
1644 usbvision
->user
= 0;
1645 usbvision
->streaming
= Stream_Off
;
1646 usbvision_configure_video(usbvision
);
1647 usbvision_register_video(usbvision
);
1648 mutex_unlock(&usbvision
->lock
);
1650 usbvision_create_sysfs(usbvision
->vdev
);
1652 PDEBUG(DBG_PROBE
, "success");
1658 * usbvision_disconnect()
1660 * This procedure stops all driver activity, deallocates interface-private
1661 * structure (pointed by 'ptr') and after that driver should be removable
1662 * with no ill consequences.
1665 static void __devexit
usbvision_disconnect(struct usb_interface
*intf
)
1667 struct usb_usbvision
*usbvision
= to_usbvision(usb_get_intfdata(intf
));
1669 PDEBUG(DBG_PROBE
, "");
1671 if (usbvision
== NULL
) {
1672 pr_err("%s: usb_get_intfdata() failed\n", __func__
);
1676 mutex_lock(&usbvision
->lock
);
1678 // At this time we ask to cancel outstanding URBs
1679 usbvision_stop_isoc(usbvision
);
1681 v4l2_device_disconnect(&usbvision
->v4l2_dev
);
1683 if (usbvision
->power
) {
1684 usbvision_i2c_unregister(usbvision
);
1685 usbvision_power_off(usbvision
);
1687 usbvision
->remove_pending
= 1; // Now all ISO data will be ignored
1689 usb_put_dev(usbvision
->dev
);
1690 usbvision
->dev
= NULL
; // USB device is no more
1692 mutex_unlock(&usbvision
->lock
);
1694 if (usbvision
->user
) {
1695 printk(KERN_INFO
"%s: In use, disconnect pending\n",
1697 wake_up_interruptible(&usbvision
->wait_frame
);
1698 wake_up_interruptible(&usbvision
->wait_stream
);
1700 usbvision_release(usbvision
);
1703 PDEBUG(DBG_PROBE
, "success");
1706 static struct usb_driver usbvision_driver
= {
1707 .name
= "usbvision",
1708 .id_table
= usbvision_table
,
1709 .probe
= usbvision_probe
,
1710 .disconnect
= __devexit_p(usbvision_disconnect
),
1716 * This code is run to initialize the driver.
1719 static int __init
usbvision_init(void)
1723 PDEBUG(DBG_PROBE
, "");
1725 PDEBUG(DBG_IO
, "IO debugging is enabled [video]");
1726 PDEBUG(DBG_PROBE
, "PROBE debugging is enabled [video]");
1727 PDEBUG(DBG_MMAP
, "MMAP debugging is enabled [video]");
1729 /* disable planar mode support unless compression enabled */
1730 if (isocMode
!= ISOC_MODE_COMPRESS
) {
1731 // FIXME : not the right way to set supported flag
1732 usbvision_v4l2_format
[6].supported
= 0; // V4L2_PIX_FMT_YVU420
1733 usbvision_v4l2_format
[7].supported
= 0; // V4L2_PIX_FMT_YUV422P
1736 errCode
= usb_register(&usbvision_driver
);
1739 printk(KERN_INFO DRIVER_DESC
" : " USBVISION_VERSION_STRING
"\n");
1740 PDEBUG(DBG_PROBE
, "success");
1745 static void __exit
usbvision_exit(void)
1747 PDEBUG(DBG_PROBE
, "");
1749 usb_deregister(&usbvision_driver
);
1750 PDEBUG(DBG_PROBE
, "success");
1753 module_init(usbvision_init
);
1754 module_exit(usbvision_exit
);
1757 * Overrides for Emacs so that we follow Linus's tabbing style.
1758 * ---------------------------------------------------------------------------