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ec709bb801
usbvision has a module parameter that ables the user to add a new USB entry at driver load. This functionality is useless by experience (adding statically the entry is easy). Furthermore, the USB_DEVICE(0xfff0, 0xfff0) USB entry caused usbvision_probe to be called for all unclaimed devices. Signed-off-by: Thierry MERLE <thierry.merle@free.fr> Acked-by: Dwaine Garden <DwaineGarden@rogers.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
1993 lines
55 KiB
C
1993 lines
55 KiB
C
/*
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* USB USBVISION Video device driver 0.9.9
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*
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*
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*
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* Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
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*
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* This module is part of usbvision driver project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Let's call the version 0.... until compression decoding is completely
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* implemented.
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*
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* This driver is written by Jose Ignacio Gijon and Joerg Heckenbach.
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* It was based on USB CPiA driver written by Peter Pregler,
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* Scott J. Bertin and Johannes Erdfelt
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* Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler &
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* Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink
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* Updates to driver completed by Dwaine P. Garden
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*
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*
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* TODO:
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* - use submit_urb for all setup packets
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* - Fix memory settings for nt1004. It is 4 times as big as the
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* nt1003 memory.
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* - Add audio on endpoint 3 for nt1004 chip. Seems impossible, needs a codec interface. Which one?
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* - Clean up the driver.
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* - optimization for performance.
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* - Add Videotext capability (VBI). Working on it.....
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* - Check audio for other devices
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*
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*/
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#include <linux/version.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/slab.h>
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#include <linux/mm.h>
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#include <linux/utsname.h>
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#include <linux/highmem.h>
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#include <linux/smp_lock.h>
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#include <linux/videodev.h>
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#include <linux/vmalloc.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/spinlock.h>
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#include <asm/io.h>
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#include <linux/videodev2.h>
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#include <linux/video_decoder.h>
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#include <linux/i2c.h>
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#include <media/saa7115.h>
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#include <media/v4l2-common.h>
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#include <media/tuner.h>
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#include <media/audiochip.h>
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#include <linux/moduleparam.h>
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#include <linux/workqueue.h>
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#ifdef CONFIG_KMOD
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#include <linux/kmod.h>
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#endif
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#include "usbvision.h"
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#include "usbvision-cards.h"
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#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, Dwaine Garden <DwaineGarden@rogers.com>"
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#define DRIVER_NAME "usbvision"
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#define DRIVER_ALIAS "USBVision"
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#define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
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#define DRIVER_LICENSE "GPL"
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#define USBVISION_DRIVER_VERSION_MAJOR 0
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#define USBVISION_DRIVER_VERSION_MINOR 9
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#define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
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#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL)
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#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
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#define ENABLE_HEXDUMP 0 /* Enable if you need it */
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#ifdef USBVISION_DEBUG
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#define PDEBUG(level, fmt, args...) \
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if (video_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
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#else
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#define PDEBUG(level, fmt, args...) do {} while(0)
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#endif
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#define DBG_IOCTL 1<<0
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#define DBG_IO 1<<1
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#define DBG_PROBE 1<<2
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#define DBG_MMAP 1<<3
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//String operations
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#define rmspace(str) while(*str==' ') str++;
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#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
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static int usbvision_nr = 0; // sequential number of usbvision device
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static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
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{ 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
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{ 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
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{ 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
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{ 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
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{ 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
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{ 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
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{ 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
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{ 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
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};
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/* supported tv norms */
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static struct usbvision_tvnorm tvnorms[] = {
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{
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.name = "PAL",
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.id = V4L2_STD_PAL,
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}, {
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.name = "NTSC",
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.id = V4L2_STD_NTSC,
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}, {
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.name = "SECAM",
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.id = V4L2_STD_SECAM,
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}, {
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.name = "PAL-M",
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.id = V4L2_STD_PAL_M,
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}
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};
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#define TVNORMS ARRAY_SIZE(tvnorms)
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// Function prototypes
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static void usbvision_release(struct usb_usbvision *usbvision);
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// Default initalization of device driver parameters
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static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint
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static int video_debug = 0; // Set the default Debug Mode of the device driver
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static int PowerOnAtOpen = 1; // Set the default device to power on at startup
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static int video_nr = -1; // Sequential Number of Video Device
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static int radio_nr = -1; // Sequential Number of Radio Device
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static int vbi_nr = -1; // Sequential Number of VBI Device
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// Grab parameters for the device driver
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#if defined(module_param) // Showing parameters under SYSFS
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module_param(isocMode, int, 0444);
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module_param(video_debug, int, 0444);
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module_param(PowerOnAtOpen, int, 0444);
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module_param(video_nr, int, 0444);
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module_param(radio_nr, int, 0444);
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module_param(vbi_nr, int, 0444);
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#else // Old Style
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MODULE_PARAM(isocMode, "i");
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MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver
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MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive
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MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup
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MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently.
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MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...)
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MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...)
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MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...)
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#endif
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MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
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MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
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MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
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MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
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MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
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MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
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// Misc stuff
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE(DRIVER_LICENSE);
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MODULE_VERSION(USBVISION_VERSION_STRING);
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MODULE_ALIAS(DRIVER_ALIAS);
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/****************************************************************************************/
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/* SYSFS Code - Copied from the stv680.c usb module. */
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/* Device information is located at /sys/class/video4linux/video0 */
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/* Device parameters information is located at /sys/module/usbvision */
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/* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */
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/****************************************************************************************/
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#define YES_NO(x) ((x) ? "Yes" : "No")
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static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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return video_get_drvdata(vdev);
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}
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static ssize_t show_version(struct class_device *cd, char *buf)
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{
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return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
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}
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static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
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static ssize_t show_model(struct class_device *cd, char *buf)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString);
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}
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static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
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static ssize_t show_hue(struct class_device *cd, char *buf)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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struct v4l2_control ctrl;
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ctrl.id = V4L2_CID_HUE;
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ctrl.value = 0;
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if(usbvision->user)
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call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
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return sprintf(buf, "%d\n", ctrl.value);
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}
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static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
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static ssize_t show_contrast(struct class_device *cd, char *buf)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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struct v4l2_control ctrl;
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ctrl.id = V4L2_CID_CONTRAST;
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ctrl.value = 0;
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if(usbvision->user)
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call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
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return sprintf(buf, "%d\n", ctrl.value);
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}
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static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
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static ssize_t show_brightness(struct class_device *cd, char *buf)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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struct v4l2_control ctrl;
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ctrl.id = V4L2_CID_BRIGHTNESS;
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ctrl.value = 0;
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if(usbvision->user)
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call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
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return sprintf(buf, "%d\n", ctrl.value);
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}
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static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
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static ssize_t show_saturation(struct class_device *cd, char *buf)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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struct v4l2_control ctrl;
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ctrl.id = V4L2_CID_SATURATION;
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ctrl.value = 0;
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if(usbvision->user)
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call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
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return sprintf(buf, "%d\n", ctrl.value);
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}
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static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
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static ssize_t show_streaming(struct class_device *cd, char *buf)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0));
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}
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static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
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static ssize_t show_compression(struct class_device *cd, char *buf)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
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}
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static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
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static ssize_t show_device_bridge(struct class_device *cd, char *buf)
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{
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struct video_device *vdev = container_of(cd, struct video_device, class_dev);
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struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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return sprintf(buf, "%d\n", usbvision->bridgeType);
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}
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static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
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static void usbvision_create_sysfs(struct video_device *vdev)
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{
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int res;
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if (!vdev)
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return;
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do {
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_version);
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if (res<0)
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break;
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_model);
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if (res<0)
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break;
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_hue);
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if (res<0)
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break;
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_contrast);
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if (res<0)
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break;
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_brightness);
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if (res<0)
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break;
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_saturation);
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if (res<0)
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break;
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_streaming);
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if (res<0)
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break;
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_compression);
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if (res<0)
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break;
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res=class_device_create_file(&vdev->class_dev,
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&class_device_attr_bridge);
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if (res>=0)
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return;
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} while (0);
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err("%s error: %d\n", __FUNCTION__, res);
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}
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static void usbvision_remove_sysfs(struct video_device *vdev)
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{
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if (vdev) {
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_version);
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_model);
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_hue);
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_contrast);
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_brightness);
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_saturation);
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_streaming);
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_compression);
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class_device_remove_file(&vdev->class_dev,
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&class_device_attr_bridge);
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}
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}
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/*
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* usbvision_open()
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*
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* This is part of Video 4 Linux API. The driver can be opened by one
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* client only (checks internal counter 'usbvision->user'). The procedure
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* then allocates buffers needed for video processing.
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*
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*/
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static int usbvision_v4l2_open(struct inode *inode, struct file *file)
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{
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struct video_device *dev = video_devdata(file);
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struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
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int errCode = 0;
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PDEBUG(DBG_IO, "open");
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usbvision_reset_powerOffTimer(usbvision);
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if (usbvision->user)
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errCode = -EBUSY;
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else {
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/* Allocate memory for the scratch ring buffer */
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errCode = usbvision_scratch_alloc(usbvision);
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if (isocMode==ISOC_MODE_COMPRESS) {
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/* Allocate intermediate decompression buffers only if needed */
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errCode = usbvision_decompress_alloc(usbvision);
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}
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if (errCode) {
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/* Deallocate all buffers if trouble */
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usbvision_scratch_free(usbvision);
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usbvision_decompress_free(usbvision);
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}
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}
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/* If so far no errors then we shall start the camera */
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if (!errCode) {
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down(&usbvision->lock);
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if (usbvision->power == 0) {
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usbvision_power_on(usbvision);
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usbvision_i2c_register(usbvision);
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}
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/* Send init sequence only once, it's large! */
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if (!usbvision->initialized) {
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int setup_ok = 0;
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setup_ok = usbvision_setup(usbvision,isocMode);
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if (setup_ok)
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usbvision->initialized = 1;
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else
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errCode = -EBUSY;
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}
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if (!errCode) {
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usbvision_begin_streaming(usbvision);
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errCode = usbvision_init_isoc(usbvision);
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/* device needs to be initialized before isoc transfer */
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usbvision_muxsel(usbvision,0);
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usbvision->user++;
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}
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else {
|
|
if (PowerOnAtOpen) {
|
|
usbvision_i2c_unregister(usbvision);
|
|
usbvision_power_off(usbvision);
|
|
usbvision->initialized = 0;
|
|
}
|
|
}
|
|
up(&usbvision->lock);
|
|
}
|
|
|
|
if (errCode) {
|
|
}
|
|
|
|
/* prepare queues */
|
|
usbvision_empty_framequeues(usbvision);
|
|
|
|
PDEBUG(DBG_IO, "success");
|
|
return errCode;
|
|
}
|
|
|
|
/*
|
|
* usbvision_v4l2_close()
|
|
*
|
|
* This is part of Video 4 Linux API. The procedure
|
|
* stops streaming and deallocates all buffers that were earlier
|
|
* allocated in usbvision_v4l2_open().
|
|
*
|
|
*/
|
|
static int usbvision_v4l2_close(struct inode *inode, struct file *file)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
|
|
|
|
PDEBUG(DBG_IO, "close");
|
|
down(&usbvision->lock);
|
|
|
|
usbvision_audio_off(usbvision);
|
|
usbvision_restart_isoc(usbvision);
|
|
usbvision_stop_isoc(usbvision);
|
|
|
|
usbvision_decompress_free(usbvision);
|
|
usbvision_frames_free(usbvision);
|
|
usbvision_empty_framequeues(usbvision);
|
|
usbvision_scratch_free(usbvision);
|
|
|
|
usbvision->user--;
|
|
|
|
if (PowerOnAtOpen) {
|
|
/* power off in a little while to avoid off/on every close/open short sequences */
|
|
usbvision_set_powerOffTimer(usbvision);
|
|
usbvision->initialized = 0;
|
|
}
|
|
|
|
up(&usbvision->lock);
|
|
|
|
if (usbvision->remove_pending) {
|
|
printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
|
|
usbvision_release(usbvision);
|
|
}
|
|
|
|
PDEBUG(DBG_IO, "success");
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* usbvision_ioctl()
|
|
*
|
|
* This is part of Video 4 Linux API. The procedure handles ioctl() calls.
|
|
*
|
|
*/
|
|
static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
|
|
|
|
if (!USBVISION_IS_OPERATIONAL(usbvision))
|
|
return -EFAULT;
|
|
|
|
switch (cmd) {
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
/* ioctls to allow direct acces to the NT100x registers */
|
|
case VIDIOC_DBG_G_REGISTER:
|
|
case VIDIOC_DBG_S_REGISTER:
|
|
{
|
|
struct v4l2_register *reg = arg;
|
|
int errCode;
|
|
|
|
if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
|
|
return -EINVAL;
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
return -EPERM;
|
|
/* NT100x has a 8-bit register space */
|
|
if (cmd == VIDIOC_DBG_G_REGISTER)
|
|
errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
|
|
else
|
|
errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
|
|
if (errCode < 0) {
|
|
err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__,
|
|
cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode);
|
|
return errCode;
|
|
}
|
|
if (cmd == VIDIOC_DBG_S_REGISTER)
|
|
reg->val = (u8)errCode;
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X",
|
|
cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S',
|
|
(unsigned int)reg->reg, (unsigned int)reg->val);
|
|
return 0;
|
|
}
|
|
#endif
|
|
case VIDIOC_QUERYCAP:
|
|
{
|
|
struct v4l2_capability *vc=arg;
|
|
|
|
memset(vc, 0, sizeof(*vc));
|
|
strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
|
|
strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
|
|
sizeof(vc->card));
|
|
strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
|
|
sizeof(vc->bus_info));
|
|
vc->version = USBVISION_DRIVER_VERSION;
|
|
vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_AUDIO |
|
|
V4L2_CAP_READWRITE |
|
|
V4L2_CAP_STREAMING |
|
|
(usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP");
|
|
return 0;
|
|
}
|
|
case VIDIOC_ENUMINPUT:
|
|
{
|
|
struct v4l2_input *vi = arg;
|
|
int chan;
|
|
|
|
if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
|
|
return -EINVAL;
|
|
if (usbvision->have_tuner) {
|
|
chan = vi->index;
|
|
}
|
|
else {
|
|
chan = vi->index + 1; //skip Television string
|
|
}
|
|
switch(chan) {
|
|
case 0:
|
|
if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
|
|
strcpy(vi->name, "White Video Input");
|
|
}
|
|
else {
|
|
strcpy(vi->name, "Television");
|
|
vi->type = V4L2_INPUT_TYPE_TUNER;
|
|
vi->audioset = 1;
|
|
vi->tuner = chan;
|
|
vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM;
|
|
}
|
|
break;
|
|
case 1:
|
|
vi->type = V4L2_INPUT_TYPE_CAMERA;
|
|
if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
|
|
strcpy(vi->name, "Green Video Input");
|
|
}
|
|
else {
|
|
strcpy(vi->name, "Composite Video Input");
|
|
}
|
|
vi->std = V4L2_STD_PAL;
|
|
break;
|
|
case 2:
|
|
vi->type = V4L2_INPUT_TYPE_CAMERA;
|
|
if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
|
|
strcpy(vi->name, "Yellow Video Input");
|
|
}
|
|
else {
|
|
strcpy(vi->name, "S-Video Input");
|
|
}
|
|
vi->std = V4L2_STD_PAL;
|
|
break;
|
|
case 3:
|
|
vi->type = V4L2_INPUT_TYPE_CAMERA;
|
|
strcpy(vi->name, "Red Video Input");
|
|
vi->std = V4L2_STD_PAL;
|
|
break;
|
|
}
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x",
|
|
vi->name, vi->index, vi->tuner,vi->type,(int)vi->std);
|
|
return 0;
|
|
}
|
|
case VIDIOC_ENUMSTD:
|
|
{
|
|
struct v4l2_standard *e = arg;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
i = e->index;
|
|
if (i >= TVNORMS)
|
|
return -EINVAL;
|
|
ret = v4l2_video_std_construct(e, tvnorms[e->index].id,
|
|
tvnorms[e->index].name);
|
|
e->index = i;
|
|
if (ret < 0)
|
|
return ret;
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_INPUT:
|
|
{
|
|
int *input = arg;
|
|
*input = usbvision->ctl_input;
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_INPUT:
|
|
{
|
|
int *input = arg;
|
|
if ((*input >= usbvision->video_inputs) || (*input < 0) )
|
|
return -EINVAL;
|
|
usbvision->ctl_input = *input;
|
|
|
|
down(&usbvision->lock);
|
|
usbvision_muxsel(usbvision, usbvision->ctl_input);
|
|
usbvision_set_input(usbvision);
|
|
usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
|
|
up(&usbvision->lock);
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_STD:
|
|
{
|
|
v4l2_std_id *id = arg;
|
|
|
|
*id = usbvision->tvnorm->id;
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name);
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_STD:
|
|
{
|
|
v4l2_std_id *id = arg;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < TVNORMS; i++)
|
|
if (*id == tvnorms[i].id)
|
|
break;
|
|
if (i == TVNORMS)
|
|
for (i = 0; i < TVNORMS; i++)
|
|
if (*id & tvnorms[i].id)
|
|
break;
|
|
if (i == TVNORMS)
|
|
return -EINVAL;
|
|
|
|
down(&usbvision->lock);
|
|
usbvision->tvnorm = &tvnorms[i];
|
|
|
|
call_i2c_clients(usbvision, VIDIOC_S_STD,
|
|
&usbvision->tvnorm->id);
|
|
|
|
up(&usbvision->lock);
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name);
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_TUNER:
|
|
{
|
|
struct v4l2_tuner *vt = arg;
|
|
|
|
if (!usbvision->have_tuner || vt->index) // Only tuner 0
|
|
return -EINVAL;
|
|
strcpy(vt->name, "Television");
|
|
/* Let clients fill in the remainder of this struct */
|
|
call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc);
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_TUNER:
|
|
{
|
|
struct v4l2_tuner *vt = arg;
|
|
|
|
// Only no or one tuner for now
|
|
if (!usbvision->have_tuner || vt->index)
|
|
return -EINVAL;
|
|
/* let clients handle this */
|
|
call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER");
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *freq = arg;
|
|
|
|
freq->tuner = 0; // Only one tuner
|
|
freq->type = V4L2_TUNER_ANALOG_TV;
|
|
freq->frequency = usbvision->freq;
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *freq = arg;
|
|
|
|
// Only no or one tuner for now
|
|
if (!usbvision->have_tuner || freq->tuner)
|
|
return -EINVAL;
|
|
|
|
usbvision->freq = freq->frequency;
|
|
call_i2c_clients(usbvision, cmd, freq);
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_AUDIO:
|
|
{
|
|
struct v4l2_audio *v = arg;
|
|
memset(v,0, sizeof(v));
|
|
strcpy(v->name, "TV");
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_AUDIO:
|
|
{
|
|
struct v4l2_audio *v = arg;
|
|
if(v->index) {
|
|
return -EINVAL;
|
|
}
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
|
|
return 0;
|
|
}
|
|
case VIDIOC_QUERYCTRL:
|
|
{
|
|
struct v4l2_queryctrl *ctrl = arg;
|
|
int id=ctrl->id;
|
|
|
|
memset(ctrl,0,sizeof(*ctrl));
|
|
ctrl->id=id;
|
|
|
|
call_i2c_clients(usbvision, cmd, arg);
|
|
|
|
if (ctrl->type)
|
|
return 0;
|
|
else
|
|
return -EINVAL;
|
|
|
|
PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
|
|
}
|
|
case VIDIOC_G_CTRL:
|
|
{
|
|
struct v4l2_control *ctrl = arg;
|
|
call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
|
|
PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_CTRL:
|
|
{
|
|
struct v4l2_control *ctrl = arg;
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
|
|
call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
|
|
return 0;
|
|
}
|
|
case VIDIOC_REQBUFS:
|
|
{
|
|
struct v4l2_requestbuffers *vr = arg;
|
|
int ret;
|
|
|
|
RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
|
|
|
|
// Check input validity : the user must do a VIDEO CAPTURE and MMAP method.
|
|
if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
|
|
(vr->memory != V4L2_MEMORY_MMAP))
|
|
return -EINVAL;
|
|
|
|
if(usbvision->streaming == Stream_On) {
|
|
if ((ret = usbvision_stream_interrupt(usbvision)))
|
|
return ret;
|
|
}
|
|
|
|
usbvision_frames_free(usbvision);
|
|
usbvision_empty_framequeues(usbvision);
|
|
vr->count = usbvision_frames_alloc(usbvision,vr->count);
|
|
|
|
usbvision->curFrame = NULL;
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count);
|
|
return 0;
|
|
}
|
|
case VIDIOC_QUERYBUF:
|
|
{
|
|
struct v4l2_buffer *vb = arg;
|
|
struct usbvision_frame *frame;
|
|
|
|
// FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called)
|
|
|
|
if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
|
|
return -EINVAL;
|
|
}
|
|
if(vb->index>=usbvision->num_frames) {
|
|
return -EINVAL;
|
|
}
|
|
// Updating the corresponding frame state
|
|
vb->flags = 0;
|
|
frame = &usbvision->frame[vb->index];
|
|
if(frame->grabstate >= FrameState_Ready)
|
|
vb->flags |= V4L2_BUF_FLAG_QUEUED;
|
|
if(frame->grabstate >= FrameState_Done)
|
|
vb->flags |= V4L2_BUF_FLAG_DONE;
|
|
if(frame->grabstate == FrameState_Unused)
|
|
vb->flags |= V4L2_BUF_FLAG_MAPPED;
|
|
vb->memory = V4L2_MEMORY_MMAP;
|
|
|
|
vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
|
|
|
|
vb->memory = V4L2_MEMORY_MMAP;
|
|
vb->field = V4L2_FIELD_NONE;
|
|
vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel;
|
|
vb->timestamp = usbvision->frame[vb->index].timestamp;
|
|
vb->sequence = usbvision->frame[vb->index].sequence;
|
|
return 0;
|
|
}
|
|
case VIDIOC_QBUF:
|
|
{
|
|
struct v4l2_buffer *vb = arg;
|
|
struct usbvision_frame *frame;
|
|
unsigned long lock_flags;
|
|
|
|
// FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
|
|
if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
|
|
return -EINVAL;
|
|
}
|
|
if(vb->index>=usbvision->num_frames) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
frame = &usbvision->frame[vb->index];
|
|
|
|
if (frame->grabstate != FrameState_Unused) {
|
|
return -EAGAIN;
|
|
}
|
|
|
|
/* Mark it as ready and enqueue frame */
|
|
frame->grabstate = FrameState_Ready;
|
|
frame->scanstate = ScanState_Scanning;
|
|
frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
|
|
|
|
vb->flags &= ~V4L2_BUF_FLAG_DONE;
|
|
|
|
/* set v4l2_format index */
|
|
frame->v4l2_format = usbvision->palette;
|
|
|
|
spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
|
|
list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
|
|
spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index);
|
|
return 0;
|
|
}
|
|
case VIDIOC_DQBUF:
|
|
{
|
|
struct v4l2_buffer *vb = arg;
|
|
int ret;
|
|
struct usbvision_frame *f;
|
|
unsigned long lock_flags;
|
|
|
|
if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
if (list_empty(&(usbvision->outqueue))) {
|
|
if (usbvision->streaming == Stream_Idle)
|
|
return -EINVAL;
|
|
ret = wait_event_interruptible
|
|
(usbvision->wait_frame,
|
|
!list_empty(&(usbvision->outqueue)));
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
|
|
f = list_entry(usbvision->outqueue.next,
|
|
struct usbvision_frame, frame);
|
|
list_del(usbvision->outqueue.next);
|
|
spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
|
|
|
|
f->grabstate = FrameState_Unused;
|
|
|
|
vb->memory = V4L2_MEMORY_MMAP;
|
|
vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE;
|
|
vb->index = f->index;
|
|
vb->sequence = f->sequence;
|
|
vb->timestamp = f->timestamp;
|
|
vb->field = V4L2_FIELD_NONE;
|
|
vb->bytesused = f->scanlength;
|
|
|
|
return 0;
|
|
}
|
|
case VIDIOC_STREAMON:
|
|
{
|
|
int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
usbvision->streaming = Stream_On;
|
|
|
|
call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON");
|
|
|
|
return 0;
|
|
}
|
|
case VIDIOC_STREAMOFF:
|
|
{
|
|
int *type = arg;
|
|
int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
if(usbvision->streaming == Stream_On) {
|
|
usbvision_stream_interrupt(usbvision);
|
|
// Stop all video streamings
|
|
call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
|
|
}
|
|
usbvision_empty_framequeues(usbvision);
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF");
|
|
return 0;
|
|
}
|
|
case VIDIOC_ENUM_FMT:
|
|
{
|
|
struct v4l2_fmtdesc *vfd = arg;
|
|
|
|
if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
|
|
return -EINVAL;
|
|
}
|
|
vfd->flags = 0;
|
|
vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
|
|
vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
|
|
memset(vfd->reserved, 0, sizeof(vfd->reserved));
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_FMT:
|
|
{
|
|
struct v4l2_format *vf = arg;
|
|
|
|
switch (vf->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
{
|
|
vf->fmt.pix.width = usbvision->curwidth;
|
|
vf->fmt.pix.height = usbvision->curheight;
|
|
vf->fmt.pix.pixelformat = usbvision->palette.format;
|
|
vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel;
|
|
vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
|
|
vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s",
|
|
vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
|
|
return 0;
|
|
}
|
|
default:
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
case VIDIOC_TRY_FMT:
|
|
case VIDIOC_S_FMT:
|
|
{
|
|
struct v4l2_format *vf = arg;
|
|
int formatIdx,ret;
|
|
|
|
switch(vf->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
{
|
|
/* Find requested format in available ones */
|
|
for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
|
|
if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) {
|
|
usbvision->palette = usbvision_v4l2_format[formatIdx];
|
|
break;
|
|
}
|
|
}
|
|
/* robustness */
|
|
if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
|
|
return -EINVAL;
|
|
}
|
|
RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
|
|
RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
|
|
|
|
vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel;
|
|
vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
|
|
|
|
if(cmd == VIDIOC_TRY_FMT) {
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s",
|
|
vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
|
|
return 0;
|
|
}
|
|
|
|
/* stop io in case it is already in progress */
|
|
if(usbvision->streaming == Stream_On) {
|
|
if ((ret = usbvision_stream_interrupt(usbvision)))
|
|
return ret;
|
|
}
|
|
usbvision_frames_free(usbvision);
|
|
usbvision_empty_framequeues(usbvision);
|
|
|
|
usbvision->curFrame = NULL;
|
|
|
|
// by now we are committed to the new data...
|
|
down(&usbvision->lock);
|
|
usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
|
|
up(&usbvision->lock);
|
|
|
|
PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s",
|
|
vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
|
|
return 0;
|
|
}
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
default:
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl);
|
|
}
|
|
|
|
|
|
static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
|
|
int noblock = file->f_flags & O_NONBLOCK;
|
|
unsigned long lock_flags;
|
|
|
|
int ret,i;
|
|
struct usbvision_frame *frame;
|
|
|
|
PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock);
|
|
|
|
if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
|
|
return -EFAULT;
|
|
|
|
/* This entry point is compatible with the mmap routines so that a user can do either
|
|
VIDIOC_QBUF/VIDIOC_DQBUF to get frames or call read on the device. */
|
|
if(!usbvision->num_frames) {
|
|
/* First, allocate some frames to work with if this has not been done with
|
|
VIDIOC_REQBUF */
|
|
usbvision_frames_free(usbvision);
|
|
usbvision_empty_framequeues(usbvision);
|
|
usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
|
|
}
|
|
|
|
if(usbvision->streaming != Stream_On) {
|
|
/* no stream is running, make it running ! */
|
|
usbvision->streaming = Stream_On;
|
|
call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
|
|
}
|
|
|
|
/* Then, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */
|
|
for(i=0;i<usbvision->num_frames;i++) {
|
|
frame = &usbvision->frame[i];
|
|
if(frame->grabstate == FrameState_Unused) {
|
|
/* Mark it as ready and enqueue frame */
|
|
frame->grabstate = FrameState_Ready;
|
|
frame->scanstate = ScanState_Scanning;
|
|
frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
|
|
|
|
/* set v4l2_format index */
|
|
frame->v4l2_format = usbvision->palette;
|
|
|
|
spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
|
|
list_add_tail(&frame->frame, &usbvision->inqueue);
|
|
spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
|
|
}
|
|
}
|
|
|
|
/* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
|
|
if (list_empty(&(usbvision->outqueue))) {
|
|
if(noblock)
|
|
return -EAGAIN;
|
|
|
|
ret = wait_event_interruptible
|
|
(usbvision->wait_frame,
|
|
!list_empty(&(usbvision->outqueue)));
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
|
|
frame = list_entry(usbvision->outqueue.next,
|
|
struct usbvision_frame, frame);
|
|
list_del(usbvision->outqueue.next);
|
|
spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
|
|
|
|
/* An error returns an empty frame */
|
|
if (frame->grabstate == FrameState_Error) {
|
|
frame->bytes_read = 0;
|
|
return 0;
|
|
}
|
|
|
|
PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__,
|
|
frame->index, frame->bytes_read, frame->scanlength);
|
|
|
|
/* copy bytes to user space; we allow for partials reads */
|
|
if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
|
|
count = frame->scanlength - frame->bytes_read;
|
|
|
|
if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
|
|
return -EFAULT;
|
|
}
|
|
|
|
frame->bytes_read += count;
|
|
PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__,
|
|
(unsigned long)count, frame->bytes_read);
|
|
|
|
// For now, forget the frame if it has not been read in one shot.
|
|
/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
|
|
frame->bytes_read = 0;
|
|
|
|
/* Mark it as available to be used again. */
|
|
frame->grabstate = FrameState_Unused;
|
|
/* } */
|
|
|
|
return count;
|
|
}
|
|
|
|
static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
|
|
{
|
|
unsigned long size = vma->vm_end - vma->vm_start,
|
|
start = vma->vm_start;
|
|
void *pos;
|
|
u32 i;
|
|
|
|
struct video_device *dev = video_devdata(file);
|
|
struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
|
|
|
|
PDEBUG(DBG_MMAP, "mmap");
|
|
|
|
down(&usbvision->lock);
|
|
|
|
if (!USBVISION_IS_OPERATIONAL(usbvision)) {
|
|
up(&usbvision->lock);
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (!(vma->vm_flags & VM_WRITE) ||
|
|
size != PAGE_ALIGN(usbvision->max_frame_size)) {
|
|
up(&usbvision->lock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < usbvision->num_frames; i++) {
|
|
if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == vma->vm_pgoff)
|
|
break;
|
|
}
|
|
if (i == usbvision->num_frames) {
|
|
PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range");
|
|
up(&usbvision->lock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* VM_IO is eventually going to replace PageReserved altogether */
|
|
vma->vm_flags |= VM_IO;
|
|
vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
|
|
|
|
pos = usbvision->frame[i].data;
|
|
while (size > 0) {
|
|
|
|
if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
|
|
PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
|
|
up(&usbvision->lock);
|
|
return -EAGAIN;
|
|
}
|
|
start += PAGE_SIZE;
|
|
pos += PAGE_SIZE;
|
|
size -= PAGE_SIZE;
|
|
}
|
|
|
|
up(&usbvision->lock);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Here comes the stuff for radio on usbvision based devices
|
|
*
|
|
*/
|
|
static int usbvision_radio_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
|
|
struct v4l2_frequency freq;
|
|
int errCode = 0;
|
|
|
|
PDEBUG(DBG_IO, "%s:", __FUNCTION__);
|
|
|
|
down(&usbvision->lock);
|
|
|
|
if (usbvision->user) {
|
|
err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
|
|
errCode = -EBUSY;
|
|
}
|
|
else {
|
|
if(PowerOnAtOpen) {
|
|
usbvision_reset_powerOffTimer(usbvision);
|
|
if (usbvision->power == 0) {
|
|
usbvision_power_on(usbvision);
|
|
usbvision_i2c_register(usbvision);
|
|
}
|
|
}
|
|
|
|
/* Alternate interface 1 is is the biggest frame size */
|
|
errCode = usbvision_set_alternate(usbvision);
|
|
if (errCode < 0) {
|
|
usbvision->last_error = errCode;
|
|
return -EBUSY;
|
|
}
|
|
|
|
// If so far no errors then we shall start the radio
|
|
usbvision->radio = 1;
|
|
call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
|
|
freq.frequency = 1517; //SWR3 @ 94.8MHz
|
|
call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq);
|
|
usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
|
|
usbvision->user++;
|
|
}
|
|
|
|
if (errCode) {
|
|
if (PowerOnAtOpen) {
|
|
usbvision_i2c_unregister(usbvision);
|
|
usbvision_power_off(usbvision);
|
|
usbvision->initialized = 0;
|
|
}
|
|
}
|
|
up(&usbvision->lock);
|
|
return errCode;
|
|
}
|
|
|
|
|
|
static int usbvision_radio_close(struct inode *inode, struct file *file)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
|
|
int errCode = 0;
|
|
|
|
PDEBUG(DBG_IO, "");
|
|
|
|
down(&usbvision->lock);
|
|
|
|
/* Set packet size to 0 */
|
|
usbvision->ifaceAlt=0;
|
|
errCode = usb_set_interface(usbvision->dev, usbvision->iface,
|
|
usbvision->ifaceAlt);
|
|
|
|
usbvision_audio_off(usbvision);
|
|
usbvision->radio=0;
|
|
usbvision->user--;
|
|
|
|
if (PowerOnAtOpen) {
|
|
usbvision_set_powerOffTimer(usbvision);
|
|
usbvision->initialized = 0;
|
|
}
|
|
|
|
up(&usbvision->lock);
|
|
|
|
if (usbvision->remove_pending) {
|
|
printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
|
|
usbvision_release(usbvision);
|
|
}
|
|
|
|
|
|
PDEBUG(DBG_IO, "success");
|
|
|
|
return errCode;
|
|
}
|
|
|
|
static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
|
|
|
|
if (!USBVISION_IS_OPERATIONAL(usbvision))
|
|
return -EIO;
|
|
|
|
switch (cmd) {
|
|
case VIDIOC_QUERYCAP:
|
|
{
|
|
struct v4l2_capability *vc=arg;
|
|
|
|
memset(vc, 0, sizeof(*vc));
|
|
strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
|
|
strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
|
|
sizeof(vc->card));
|
|
strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
|
|
sizeof(vc->bus_info));
|
|
vc->version = USBVISION_DRIVER_VERSION;
|
|
vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
|
|
PDEBUG(DBG_IO, "VIDIOC_QUERYCAP");
|
|
return 0;
|
|
}
|
|
case VIDIOC_QUERYCTRL:
|
|
{
|
|
struct v4l2_queryctrl *ctrl = arg;
|
|
int id=ctrl->id;
|
|
|
|
memset(ctrl,0,sizeof(*ctrl));
|
|
ctrl->id=id;
|
|
|
|
call_i2c_clients(usbvision, cmd, arg);
|
|
PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
|
|
|
|
if (ctrl->type)
|
|
return 0;
|
|
else
|
|
return -EINVAL;
|
|
|
|
}
|
|
case VIDIOC_G_CTRL:
|
|
{
|
|
struct v4l2_control *ctrl = arg;
|
|
|
|
call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
|
|
PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_CTRL:
|
|
{
|
|
struct v4l2_control *ctrl = arg;
|
|
|
|
call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
|
|
PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_TUNER:
|
|
{
|
|
struct v4l2_tuner *t = arg;
|
|
|
|
if (t->index > 0)
|
|
return -EINVAL;
|
|
|
|
memset(t,0,sizeof(*t));
|
|
strcpy(t->name, "Radio");
|
|
t->type = V4L2_TUNER_RADIO;
|
|
|
|
/* Let clients fill in the remainder of this struct */
|
|
call_i2c_clients(usbvision,VIDIOC_G_TUNER,t);
|
|
PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc);
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_TUNER:
|
|
{
|
|
struct v4l2_tuner *vt = arg;
|
|
|
|
// Only no or one tuner for now
|
|
if (!usbvision->have_tuner || vt->index)
|
|
return -EINVAL;
|
|
/* let clients handle this */
|
|
call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
|
|
|
|
PDEBUG(DBG_IO, "VIDIOC_S_TUNER");
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_AUDIO:
|
|
{
|
|
struct v4l2_audio *a = arg;
|
|
|
|
memset(a,0,sizeof(*a));
|
|
strcpy(a->name,"Radio");
|
|
PDEBUG(DBG_IO, "VIDIOC_G_AUDIO");
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_AUDIO:
|
|
case VIDIOC_S_INPUT:
|
|
case VIDIOC_S_STD:
|
|
return 0;
|
|
|
|
case VIDIOC_G_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *f = arg;
|
|
|
|
memset(f,0,sizeof(*f));
|
|
|
|
f->type = V4L2_TUNER_RADIO;
|
|
f->frequency = usbvision->freq;
|
|
call_i2c_clients(usbvision, cmd, f);
|
|
PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency);
|
|
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *f = arg;
|
|
|
|
if (f->tuner != 0)
|
|
return -EINVAL;
|
|
usbvision->freq = f->frequency;
|
|
call_i2c_clients(usbvision, cmd, f);
|
|
PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency);
|
|
|
|
return 0;
|
|
}
|
|
default:
|
|
{
|
|
PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd);
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int usbvision_radio_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl);
|
|
}
|
|
|
|
|
|
/*
|
|
* Here comes the stuff for vbi on usbvision based devices
|
|
*
|
|
*/
|
|
static int usbvision_vbi_open(struct inode *inode, struct file *file)
|
|
{
|
|
/* TODO */
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
static int usbvision_vbi_close(struct inode *inode, struct file *file)
|
|
{
|
|
/* TODO */
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
/* TODO */
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
|
|
}
|
|
|
|
|
|
//
|
|
// Video registration stuff
|
|
//
|
|
|
|
// Video template
|
|
static const struct file_operations usbvision_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = usbvision_v4l2_open,
|
|
.release = usbvision_v4l2_close,
|
|
.read = usbvision_v4l2_read,
|
|
.mmap = usbvision_v4l2_mmap,
|
|
.ioctl = usbvision_v4l2_ioctl,
|
|
.llseek = no_llseek,
|
|
};
|
|
static struct video_device usbvision_video_template = {
|
|
.owner = THIS_MODULE,
|
|
.type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
|
|
.hardware = VID_HARDWARE_USBVISION,
|
|
.fops = &usbvision_fops,
|
|
.name = "usbvision-video",
|
|
.release = video_device_release,
|
|
.minor = -1,
|
|
};
|
|
|
|
|
|
// Radio template
|
|
static const struct file_operations usbvision_radio_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = usbvision_radio_open,
|
|
.release = usbvision_radio_close,
|
|
.ioctl = usbvision_radio_ioctl,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
static struct video_device usbvision_radio_template=
|
|
{
|
|
.owner = THIS_MODULE,
|
|
.type = VID_TYPE_TUNER,
|
|
.hardware = VID_HARDWARE_USBVISION,
|
|
.fops = &usbvision_radio_fops,
|
|
.release = video_device_release,
|
|
.name = "usbvision-radio",
|
|
.minor = -1,
|
|
};
|
|
|
|
|
|
// vbi template
|
|
static const struct file_operations usbvision_vbi_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = usbvision_vbi_open,
|
|
.release = usbvision_vbi_close,
|
|
.ioctl = usbvision_vbi_ioctl,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
static struct video_device usbvision_vbi_template=
|
|
{
|
|
.owner = THIS_MODULE,
|
|
.type = VID_TYPE_TUNER,
|
|
.hardware = VID_HARDWARE_USBVISION,
|
|
.fops = &usbvision_vbi_fops,
|
|
.release = video_device_release,
|
|
.name = "usbvision-vbi",
|
|
.minor = -1,
|
|
};
|
|
|
|
|
|
static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
|
|
struct video_device *vdev_template,
|
|
char *name)
|
|
{
|
|
struct usb_device *usb_dev = usbvision->dev;
|
|
struct video_device *vdev;
|
|
|
|
if (usb_dev == NULL) {
|
|
err("%s: usbvision->dev is not set", __FUNCTION__);
|
|
return NULL;
|
|
}
|
|
|
|
vdev = video_device_alloc();
|
|
if (NULL == vdev) {
|
|
return NULL;
|
|
}
|
|
*vdev = *vdev_template;
|
|
// vdev->minor = -1;
|
|
vdev->dev = &usb_dev->dev;
|
|
snprintf(vdev->name, sizeof(vdev->name), "%s", name);
|
|
video_set_drvdata(vdev, usbvision);
|
|
return vdev;
|
|
}
|
|
|
|
// unregister video4linux devices
|
|
static void usbvision_unregister_video(struct usb_usbvision *usbvision)
|
|
{
|
|
// vbi Device:
|
|
if (usbvision->vbi) {
|
|
PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f);
|
|
if (usbvision->vbi->minor != -1) {
|
|
video_unregister_device(usbvision->vbi);
|
|
}
|
|
else {
|
|
video_device_release(usbvision->vbi);
|
|
}
|
|
usbvision->vbi = NULL;
|
|
}
|
|
|
|
// Radio Device:
|
|
if (usbvision->rdev) {
|
|
PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f);
|
|
if (usbvision->rdev->minor != -1) {
|
|
video_unregister_device(usbvision->rdev);
|
|
}
|
|
else {
|
|
video_device_release(usbvision->rdev);
|
|
}
|
|
usbvision->rdev = NULL;
|
|
}
|
|
|
|
// Video Device:
|
|
if (usbvision->vdev) {
|
|
PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f);
|
|
if (usbvision->vdev->minor != -1) {
|
|
video_unregister_device(usbvision->vdev);
|
|
}
|
|
else {
|
|
video_device_release(usbvision->vdev);
|
|
}
|
|
usbvision->vdev = NULL;
|
|
}
|
|
}
|
|
|
|
// register video4linux devices
|
|
static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
|
|
{
|
|
// Video Device:
|
|
usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video");
|
|
if (usbvision->vdev == NULL) {
|
|
goto err_exit;
|
|
}
|
|
if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) {
|
|
goto err_exit;
|
|
}
|
|
printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f);
|
|
|
|
// Radio Device:
|
|
if (usbvision_device_data[usbvision->DevModel].Radio) {
|
|
// usbvision has radio
|
|
usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio");
|
|
if (usbvision->rdev == NULL) {
|
|
goto err_exit;
|
|
}
|
|
if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) {
|
|
goto err_exit;
|
|
}
|
|
printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f);
|
|
}
|
|
// vbi Device:
|
|
if (usbvision_device_data[usbvision->DevModel].vbi) {
|
|
usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI");
|
|
if (usbvision->vdev == NULL) {
|
|
goto err_exit;
|
|
}
|
|
if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) {
|
|
goto err_exit;
|
|
}
|
|
printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f);
|
|
}
|
|
// all done
|
|
return 0;
|
|
|
|
err_exit:
|
|
err("USBVision[%d]: video_register_device() failed", usbvision->nr);
|
|
usbvision_unregister_video(usbvision);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* usbvision_alloc()
|
|
*
|
|
* This code allocates the struct usb_usbvision. It is filled with default values.
|
|
*
|
|
* Returns NULL on error, a pointer to usb_usbvision else.
|
|
*
|
|
*/
|
|
static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
|
|
{
|
|
struct usb_usbvision *usbvision;
|
|
|
|
if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) {
|
|
goto err_exit;
|
|
}
|
|
|
|
usbvision->dev = dev;
|
|
|
|
init_MUTEX(&usbvision->lock); /* to 1 == available */
|
|
|
|
// prepare control urb for control messages during interrupts
|
|
usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
|
|
if (usbvision->ctrlUrb == NULL) {
|
|
goto err_exit;
|
|
}
|
|
init_waitqueue_head(&usbvision->ctrlUrb_wq);
|
|
init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */
|
|
|
|
usbvision_init_powerOffTimer(usbvision);
|
|
|
|
return usbvision;
|
|
|
|
err_exit:
|
|
if (usbvision && usbvision->ctrlUrb) {
|
|
usb_free_urb(usbvision->ctrlUrb);
|
|
}
|
|
if (usbvision) {
|
|
kfree(usbvision);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* usbvision_release()
|
|
*
|
|
* This code does final release of struct usb_usbvision. This happens
|
|
* after the device is disconnected -and- all clients closed their files.
|
|
*
|
|
*/
|
|
static void usbvision_release(struct usb_usbvision *usbvision)
|
|
{
|
|
PDEBUG(DBG_PROBE, "");
|
|
|
|
down(&usbvision->lock);
|
|
|
|
usbvision_reset_powerOffTimer(usbvision);
|
|
|
|
usbvision->initialized = 0;
|
|
|
|
up(&usbvision->lock);
|
|
|
|
usbvision_remove_sysfs(usbvision->vdev);
|
|
usbvision_unregister_video(usbvision);
|
|
|
|
if (usbvision->ctrlUrb) {
|
|
usb_free_urb(usbvision->ctrlUrb);
|
|
}
|
|
|
|
kfree(usbvision);
|
|
|
|
PDEBUG(DBG_PROBE, "success");
|
|
}
|
|
|
|
|
|
/******************************** usb interface *****************************************/
|
|
|
|
static void usbvision_configure_video(struct usb_usbvision *usbvision)
|
|
{
|
|
int model,i;
|
|
|
|
if (usbvision == NULL)
|
|
return;
|
|
|
|
model = usbvision->DevModel;
|
|
usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
|
|
|
|
if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
|
|
usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2;
|
|
} else {
|
|
usbvision->Vin_Reg2_Preset = 0;
|
|
}
|
|
|
|
for (i = 0; i < TVNORMS; i++)
|
|
if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode)
|
|
break;
|
|
if (i == TVNORMS)
|
|
i = 0;
|
|
usbvision->tvnorm = &tvnorms[i]; /* set default norm */
|
|
|
|
usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
|
|
usbvision->ctl_input = 0;
|
|
|
|
/* This should be here to make i2c clients to be able to register */
|
|
usbvision_audio_off(usbvision); //first switch off audio
|
|
if (!PowerOnAtOpen) {
|
|
usbvision_power_on(usbvision); //and then power up the noisy tuner
|
|
usbvision_i2c_register(usbvision);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* usbvision_probe()
|
|
*
|
|
* This procedure queries device descriptor and accepts the interface
|
|
* if it looks like USBVISION video device
|
|
*
|
|
*/
|
|
static int __devinit usbvision_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *devid)
|
|
{
|
|
struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
|
|
struct usb_interface *uif;
|
|
__u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
|
|
const struct usb_host_interface *interface;
|
|
struct usb_usbvision *usbvision = NULL;
|
|
const struct usb_endpoint_descriptor *endpoint;
|
|
int model,i;
|
|
|
|
PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
|
|
dev->descriptor.idVendor,
|
|
dev->descriptor.idProduct, ifnum);
|
|
|
|
model = devid->driver_info;
|
|
if ( (model<0) || (model>=usbvision_device_data_size) ) {
|
|
PDEBUG(DBG_PROBE, "model out of bounds %d",model);
|
|
return -ENODEV;
|
|
}
|
|
printk(KERN_INFO "%s: %s found\n", __FUNCTION__,
|
|
usbvision_device_data[model].ModelString);
|
|
|
|
if (usbvision_device_data[model].Interface >= 0) {
|
|
interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
|
|
}
|
|
else {
|
|
interface = &dev->actconfig->interface[ifnum]->altsetting[0];
|
|
}
|
|
endpoint = &interface->endpoint[1].desc;
|
|
if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) {
|
|
err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum);
|
|
err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes);
|
|
return -ENODEV;
|
|
}
|
|
if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
|
|
err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if ((usbvision = usbvision_alloc(dev)) == NULL) {
|
|
err("%s: couldn't allocate USBVision struct", __FUNCTION__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (dev->descriptor.bNumConfigurations > 1) {
|
|
usbvision->bridgeType = BRIDGE_NT1004;
|
|
}
|
|
else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
|
|
usbvision->bridgeType = BRIDGE_NT1005;
|
|
}
|
|
else {
|
|
usbvision->bridgeType = BRIDGE_NT1003;
|
|
}
|
|
PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
|
|
|
|
down(&usbvision->lock);
|
|
|
|
/* compute alternate max packet sizes */
|
|
uif = dev->actconfig->interface[0];
|
|
|
|
usbvision->num_alt=uif->num_altsetting;
|
|
PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
|
|
usbvision->alt_max_pkt_size = kmalloc(32*
|
|
usbvision->num_alt,GFP_KERNEL);
|
|
if (usbvision->alt_max_pkt_size == NULL) {
|
|
err("usbvision: out of memory!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < usbvision->num_alt ; i++) {
|
|
u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
|
|
wMaxPacketSize);
|
|
usbvision->alt_max_pkt_size[i] =
|
|
(tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
|
|
PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
|
|
usbvision->alt_max_pkt_size[i]);
|
|
}
|
|
|
|
|
|
usbvision->nr = usbvision_nr++;
|
|
|
|
usbvision->have_tuner = usbvision_device_data[model].Tuner;
|
|
if (usbvision->have_tuner) {
|
|
usbvision->tuner_type = usbvision_device_data[model].TunerType;
|
|
}
|
|
|
|
usbvision->tuner_addr = ADDR_UNSET;
|
|
|
|
usbvision->DevModel = model;
|
|
usbvision->remove_pending = 0;
|
|
usbvision->iface = ifnum;
|
|
usbvision->ifaceAlt = 0;
|
|
usbvision->video_endp = endpoint->bEndpointAddress;
|
|
usbvision->isocPacketSize = 0;
|
|
usbvision->usb_bandwidth = 0;
|
|
usbvision->user = 0;
|
|
usbvision->streaming = Stream_Off;
|
|
usbvision_register_video(usbvision);
|
|
usbvision_configure_video(usbvision);
|
|
up(&usbvision->lock);
|
|
|
|
|
|
usb_set_intfdata (intf, usbvision);
|
|
usbvision_create_sysfs(usbvision->vdev);
|
|
|
|
PDEBUG(DBG_PROBE, "success");
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* usbvision_disconnect()
|
|
*
|
|
* This procedure stops all driver activity, deallocates interface-private
|
|
* structure (pointed by 'ptr') and after that driver should be removable
|
|
* with no ill consequences.
|
|
*
|
|
*/
|
|
static void __devexit usbvision_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct usb_usbvision *usbvision = usb_get_intfdata(intf);
|
|
|
|
PDEBUG(DBG_PROBE, "");
|
|
|
|
if (usbvision == NULL) {
|
|
err("%s: usb_get_intfdata() failed", __FUNCTION__);
|
|
return;
|
|
}
|
|
usb_set_intfdata (intf, NULL);
|
|
|
|
down(&usbvision->lock);
|
|
|
|
// At this time we ask to cancel outstanding URBs
|
|
usbvision_stop_isoc(usbvision);
|
|
|
|
if (usbvision->power) {
|
|
usbvision_i2c_unregister(usbvision);
|
|
usbvision_power_off(usbvision);
|
|
}
|
|
usbvision->remove_pending = 1; // Now all ISO data will be ignored
|
|
|
|
usb_put_dev(usbvision->dev);
|
|
usbvision->dev = NULL; // USB device is no more
|
|
|
|
up(&usbvision->lock);
|
|
|
|
if (usbvision->user) {
|
|
printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__);
|
|
wake_up_interruptible(&usbvision->wait_frame);
|
|
wake_up_interruptible(&usbvision->wait_stream);
|
|
}
|
|
else {
|
|
usbvision_release(usbvision);
|
|
}
|
|
|
|
PDEBUG(DBG_PROBE, "success");
|
|
|
|
}
|
|
|
|
static struct usb_driver usbvision_driver = {
|
|
.name = "usbvision",
|
|
.id_table = usbvision_table,
|
|
.probe = usbvision_probe,
|
|
.disconnect = usbvision_disconnect
|
|
};
|
|
|
|
/*
|
|
* usbvision_init()
|
|
*
|
|
* This code is run to initialize the driver.
|
|
*
|
|
*/
|
|
static int __init usbvision_init(void)
|
|
{
|
|
int errCode;
|
|
|
|
PDEBUG(DBG_PROBE, "");
|
|
|
|
PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]");
|
|
PDEBUG(DBG_IO, "IO debugging is enabled [video]");
|
|
PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
|
|
PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
|
|
|
|
/* disable planar mode support unless compression enabled */
|
|
if (isocMode != ISOC_MODE_COMPRESS ) {
|
|
// FIXME : not the right way to set supported flag
|
|
usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
|
|
usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
|
|
}
|
|
|
|
errCode = usb_register(&usbvision_driver);
|
|
|
|
if (errCode == 0) {
|
|
printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
|
|
PDEBUG(DBG_PROBE, "success");
|
|
}
|
|
return errCode;
|
|
}
|
|
|
|
static void __exit usbvision_exit(void)
|
|
{
|
|
PDEBUG(DBG_PROBE, "");
|
|
|
|
usb_deregister(&usbvision_driver);
|
|
PDEBUG(DBG_PROBE, "success");
|
|
}
|
|
|
|
module_init(usbvision_init);
|
|
module_exit(usbvision_exit);
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|