V4L/DVB (5257): USB: add zr364xx V4L2 driver
This patch adds a V4L2 driver giving support for USB webcams based on the zr364xx chipsets. Signed-off-by: Antoine Jacquet <royale@zerezo.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Antoine Jacquet
Mauro Carvalho Chehab
Родитель
a205752d1a
Коммит
b7eee616ad
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@ -0,0 +1,65 @@
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Zoran 364xx based USB webcam module version 0.72
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site: http://royale.zerezo.com/zr364xx/
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mail: royale@zerezo.com
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introduction:
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This brings support under Linux for the Aiptek PocketDV 3300 in webcam mode.
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If you just want to get on your PC the pictures and movies on the camera, you should use the usb-storage module instead.
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The driver works with several other cameras in webcam mode (see the list below).
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Maybe this code can work for other JPEG/USB cams based on the Coach chips from Zoran?
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Possible chipsets are : ZR36430 (ZR36430BGC) and maybe ZR36431, ZR36440, ZR36442...
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You can try the experience changing the vendor/product ID values (look at the source code).
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You can get these values by looking at /var/log/messages when you plug your camera, or by typing : cat /proc/bus/usb/devices.
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If you manage to use your cam with this code, you can send me a mail (royale@zerezo.com) with the name of your cam and a patch if needed.
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This is a beta release of the driver.
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Since version 0.70, this driver is only compatible with V4L2 API and 2.6.x kernels.
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If you need V4L1 or 2.4x kernels support, please use an older version, but the code is not maintained anymore.
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Good luck!
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install:
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In order to use this driver, you must compile it with your kernel.
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Location: Device Drivers -> Multimedia devices -> Video For Linux -> Video Capture Adapters -> V4L USB devices
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usage:
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modprobe zr364xx debug=X mode=Y
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- debug : set to 1 to enable verbose debug messages
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- mode : 0 = 320x240, 1 = 160x120, 2 = 640x480
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You can then use the camera with V4L2 compatible applications, for example Ekiga.
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To capture a single image, try this: dd if=/dev/video0 of=test.jpg bs=1 count=1
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links :
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http://mxhaard.free.fr/ (support for many others cams including some Aiptek PocketDV)
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http://www.harmwal.nl/pccam880/ (this project also supports cameras based on this chipset)
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supported devices:
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------ ------- ----------- -----
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Vendor Product Distributor Model
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------ ------- ----------- -----
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0x08ca 0x0109 Aiptek PocketDV 3300
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0x08ca 0x0109 Maxell Maxcam PRO DV3
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0x041e 0x4024 Creative PC-CAM 880
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0x0d64 0x0108 Aiptek Fidelity 3200
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0x0d64 0x0108 Praktica DCZ 1.3 S
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0x0d64 0x0108 Genius Digital Camera (?)
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0x0d64 0x0108 DXG Technology Fashion Cam
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0x0546 0x3187 Polaroid iON 230
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0x0d64 0x3108 Praktica Exakta DC 2200
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0x0d64 0x3108 Genius G-Shot D211
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0x0595 0x4343 Concord Eye-Q Duo 1300
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0x0595 0x4343 Concord Eye-Q Duo 2000
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0x0595 0x4343 Fujifilm EX-10
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0x0595 0x4343 Ricoh RDC-6000
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0x0595 0x4343 Digitrex DSC 1300
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0x0595 0x4343 Firstline FDC 2000
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0x0bb0 0x500d Concord EyeQ Go Wireless
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0x0feb 0x2004 CRS Electronic 3.3 Digital Camera
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0x0feb 0x2004 Packard Bell DSC-300
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0x055f 0xb500 Mustek MDC 3000
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0x08ca 0x2062 Aiptek PocketDV 5700
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0x052b 0x1a18 Chiphead Megapix V12
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0x04c8 0x0729 Konica Revio 2
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0x04f2 0xa208 Creative PC-CAM 850
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0x0784 0x0040 Traveler Slimline X5
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0x06d6 0x0034 Trust Powerc@m 750
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0x0a17 0x0062 Pentax Optio 50L
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10
MAINTAINERS
10
MAINTAINERS
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@ -55,7 +55,7 @@ trivial patch so apply some common sense.
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8. Happy hacking.
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-----------------------------------
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-----------------------------------
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Maintainers List (try to look for most precise areas first)
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@ -3649,6 +3649,14 @@ L: linux-usb-devel@lists.sourceforge.net
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W: http://linux-lc100020.sourceforge.net
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S: Maintained
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USB ZR364XX DRIVER
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P: Antoine Jacquet
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M: royale@zerezo.com
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L: linux-usb-devel@lists.sourceforge.net
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L: video4linux-list@redhat.com
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W: http://royale.zerezo.com/zr364xx/
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S: Maintained
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USER-MODE LINUX
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P: Jeff Dike
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M: jdike@karaya.com
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@ -761,6 +761,18 @@ source "drivers/media/video/zc0301/Kconfig"
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source "drivers/media/video/pwc/Kconfig"
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config USB_ZR364XX
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tristate "USB ZR364XX Camera support"
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depends on USB && VIDEO_V4L2
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---help---
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Say Y here if you want to connect this type of camera to your
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computer's USB port.
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See <file:Documentation/video4linux/zr364xx.txt> for more info
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and list of supported cameras.
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To compile this driver as a module, choose M here: the
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module will be called zr364xx.
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endmenu # V4L USB devices
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endmenu
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@ -99,6 +99,7 @@ obj-$(CONFIG_USB_OV511) += ov511.o
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obj-$(CONFIG_USB_SE401) += se401.o
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obj-$(CONFIG_USB_STV680) += stv680.o
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obj-$(CONFIG_USB_W9968CF) += w9968cf.o
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obj-$(CONFIG_USB_ZR364XX) += zr364xx.o
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obj-$(CONFIG_USB_SN9C102) += sn9c102/
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obj-$(CONFIG_USB_ET61X251) += et61x251/
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@ -0,0 +1,929 @@
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/*
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* Zoran 364xx based USB webcam module version 0.72
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*
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* Allows you to use your USB webcam with V4L2 applications
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* This is still in heavy developpement !
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*
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* Copyright (C) 2004 Antoine Jacquet <royale@zerezo.com>
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* http://royale.zerezo.com/zr364xx/
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*
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* Heavily inspired by usb-skeleton.c, vicam.c, cpia.c and spca50x.c drivers
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* V4L2 version inspired by meye.c driver
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/version.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/usb.h>
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#include <linux/vmalloc.h>
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#include <linux/slab.h>
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#include <linux/proc_fs.h>
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#include <media/v4l2-common.h>
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/* Version Information */
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#define DRIVER_VERSION "v0.72"
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#define DRIVER_AUTHOR "Antoine Jacquet, http://royale.zerezo.com/"
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#define DRIVER_DESC "Zoran 364xx"
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/* Camera */
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#define FRAMES 2
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#define MAX_FRAME_SIZE 100000
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#define BUFFER_SIZE 0x1000
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#define CTRL_TIMEOUT 500
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/* Debug macro */
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#define DBG(x...) if (debug) info(x)
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/* Init methods, need to find nicer names for these
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* the exact names of the chipsets would be the best if someone finds it */
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#define METHOD0 0
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#define METHOD1 1
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#define METHOD2 2
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/* Module parameters */
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static int debug = 0;
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static int mode = 0;
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/* Module parameters interface */
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Debug level");
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module_param(mode, int, 0644);
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MODULE_PARM_DESC(mode, "0 = 320x240, 1 = 160x120, 2 = 640x480");
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/* Devices supported by this driver
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* .driver_info contains the init method used by the camera */
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static struct usb_device_id device_table[] = {
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{USB_DEVICE(0x08ca, 0x0109), .driver_info = METHOD0 },
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{USB_DEVICE(0x041e, 0x4024), .driver_info = METHOD0 },
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{USB_DEVICE(0x0d64, 0x0108), .driver_info = METHOD0 },
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{USB_DEVICE(0x0546, 0x3187), .driver_info = METHOD0 },
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{USB_DEVICE(0x0d64, 0x3108), .driver_info = METHOD0 },
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{USB_DEVICE(0x0595, 0x4343), .driver_info = METHOD0 },
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{USB_DEVICE(0x0bb0, 0x500d), .driver_info = METHOD0 },
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{USB_DEVICE(0x0feb, 0x2004), .driver_info = METHOD0 },
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{USB_DEVICE(0x055f, 0xb500), .driver_info = METHOD0 },
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{USB_DEVICE(0x08ca, 0x2062), .driver_info = METHOD2 },
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{USB_DEVICE(0x052b, 0x1a18), .driver_info = METHOD1 },
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{USB_DEVICE(0x04c8, 0x0729), .driver_info = METHOD0 },
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{USB_DEVICE(0x04f2, 0xa208), .driver_info = METHOD0 },
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{USB_DEVICE(0x0784, 0x0040), .driver_info = METHOD1 },
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{USB_DEVICE(0x06d6, 0x0034), .driver_info = METHOD0 },
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{USB_DEVICE(0x0a17, 0x0062), .driver_info = METHOD2 },
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{} /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, device_table);
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/* Camera stuff */
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struct zr364xx_camera {
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struct usb_device *udev; /* save off the usb device pointer */
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struct usb_interface *interface;/* the interface for this device */
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struct video_device *vdev; /* v4l video device */
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u8 *framebuf;
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int nb;
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unsigned char *buffer;
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int skip;
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int brightness;
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int width;
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int height;
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int method;
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struct mutex lock;
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};
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/* function used to send initialisation commands to the camera */
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static int send_control_msg(struct usb_device *udev, u8 request, u16 value,
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u16 index, unsigned char *cp, u16 size)
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{
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int status;
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unsigned char *transfer_buffer = kmalloc(size, GFP_KERNEL);
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if (!transfer_buffer) {
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info("kmalloc(%d) failed", size);
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return -ENOMEM;
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}
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memcpy(transfer_buffer, cp, size);
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status = usb_control_msg(udev,
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usb_sndctrlpipe(udev, 0),
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request,
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USB_DIR_OUT | USB_TYPE_VENDOR |
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USB_RECIP_DEVICE, value, index,
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transfer_buffer, size, CTRL_TIMEOUT);
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kfree(transfer_buffer);
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if (status < 0)
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info("Failed sending control message, error %d.", status);
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return status;
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}
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/* Control messages sent to the camera to initialize it
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* and launch the capture */
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typedef struct {
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unsigned int value;
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unsigned int size;
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unsigned char *bytes;
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} message;
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/* method 0 */
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static unsigned char m0d1[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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static unsigned char m0d2[] = { 0, 0, 0, 0, 0, 0 };
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static unsigned char m0d3[] = { 0, 0 };
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static message m0[] = {
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{0x1f30, 0, NULL},
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{0xd000, 0, NULL},
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{0x3370, sizeof(m0d1), m0d1},
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{0x2000, 0, NULL},
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{0x2f0f, 0, NULL},
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{0x2610, sizeof(m0d2), m0d2},
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{0xe107, 0, NULL},
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{0x2502, 0, NULL},
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{0x1f70, 0, NULL},
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{0xd000, 0, NULL},
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{0x9a01, sizeof(m0d3), m0d3},
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{-1, -1, NULL}
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};
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/* method 1 */
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static unsigned char m1d1[] = { 0xff, 0xff };
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static unsigned char m1d2[] = { 0x00, 0x00 };
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static message m1[] = {
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{0x1f30, 0, NULL},
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{0xd000, 0, NULL},
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{0xf000, 0, NULL},
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{0x2000, 0, NULL},
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{0x2f0f, 0, NULL},
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{0x2650, 0, NULL},
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{0xe107, 0, NULL},
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{0x2502, sizeof(m1d1), m1d1},
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{0x1f70, 0, NULL},
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{0xd000, 0, NULL},
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{0xd000, 0, NULL},
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{0xd000, 0, NULL},
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{0x9a01, sizeof(m1d2), m1d2},
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{-1, -1, NULL}
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};
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/* method 2 */
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static unsigned char m2d1[] = { 0xff, 0xff };
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static message m2[] = {
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{0x1f30, 0, NULL},
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{0xf000, 0, NULL},
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{0x2000, 0, NULL},
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{0x2f0f, 0, NULL},
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{0x2650, 0, NULL},
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{0xe107, 0, NULL},
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{0x2502, sizeof(m2d1), m2d1},
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{0x1f70, 0, NULL},
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{-1, -1, NULL}
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};
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/* init table */
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static message *init[3] = { m0, m1, m2 };
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/* JPEG static data in header (Huffman table, etc) */
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static unsigned char header1[] = {
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0xFF, 0xD8,
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/*
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0xFF, 0xE0, 0x00, 0x10, 'J', 'F', 'I', 'F',
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0x00, 0x01, 0x01, 0x00, 0x33, 0x8A, 0x00, 0x00, 0x33, 0x88,
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*/
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0xFF, 0xDB, 0x00, 0x84
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};
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static unsigned char header2[] = {
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0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
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0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02,
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0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01,
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0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06,
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0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1,
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0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33,
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0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25,
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0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
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0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54,
|
||||
0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67,
|
||||
0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A,
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0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94,
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0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
|
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0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8,
|
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0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA,
|
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0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2,
|
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0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3,
|
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0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F,
|
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0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
|
||||
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04,
|
||||
0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5,
|
||||
0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05,
|
||||
0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11,
|
||||
0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
|
||||
0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1,
|
||||
0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16,
|
||||
0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27,
|
||||
0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44,
|
||||
0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57,
|
||||
0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A,
|
||||
0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84,
|
||||
0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96,
|
||||
0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
|
||||
0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA,
|
||||
0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3,
|
||||
0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5,
|
||||
0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
|
||||
0xF8, 0xF9, 0xFA, 0xFF, 0xC0, 0x00, 0x11, 0x08, 0x00, 0xF0, 0x01,
|
||||
0x40, 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01,
|
||||
0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11,
|
||||
0x00, 0x3F, 0x00
|
||||
};
|
||||
static unsigned char header3;
|
||||
|
||||
|
||||
|
||||
/********************/
|
||||
/* V4L2 integration */
|
||||
/********************/
|
||||
|
||||
/* this function reads a full JPEG picture synchronously
|
||||
* TODO: do it asynchronously... */
|
||||
static int read_frame(struct zr364xx_camera *cam, int framenum)
|
||||
{
|
||||
int i, n, temp, head, size, actual_length;
|
||||
unsigned char *ptr = NULL, *jpeg, swap;
|
||||
|
||||
redo:
|
||||
/* hardware brightness */
|
||||
n = send_control_msg(cam->udev, 1, 0x2001, 0, NULL, 0);
|
||||
temp = (0x60 << 8) + 127 - cam->brightness;
|
||||
n = send_control_msg(cam->udev, 1, temp, 0, NULL, 0);
|
||||
|
||||
/* during the first loop we are going to insert JPEG header */
|
||||
head = 0;
|
||||
/* this is the place in memory where we are going to build
|
||||
* the JPEG image */
|
||||
jpeg = cam->framebuf + framenum * MAX_FRAME_SIZE;
|
||||
/* read data... */
|
||||
do {
|
||||
n = usb_bulk_msg(cam->udev,
|
||||
usb_rcvbulkpipe(cam->udev, 0x81),
|
||||
cam->buffer, BUFFER_SIZE, &actual_length,
|
||||
CTRL_TIMEOUT);
|
||||
DBG("buffer : %d %d", cam->buffer[0], cam->buffer[1]);
|
||||
DBG("bulk : n=%d size=%d", n, actual_length);
|
||||
if (n < 0) {
|
||||
info("error reading bulk msg");
|
||||
return 0;
|
||||
}
|
||||
if (actual_length < 0 || actual_length > BUFFER_SIZE) {
|
||||
info("wrong number of bytes");
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* swap bytes if camera needs it */
|
||||
if (cam->method == METHOD0)
|
||||
for (i = 0; i < BUFFER_SIZE; i += 2) {
|
||||
swap = cam->buffer[i];
|
||||
cam->buffer[i] = cam->buffer[i + 1];
|
||||
cam->buffer[i + 1] = swap;
|
||||
}
|
||||
|
||||
/* write the JPEG header */
|
||||
if (!head) {
|
||||
DBG("jpeg header");
|
||||
ptr = jpeg;
|
||||
memcpy(ptr, header1, sizeof(header1));
|
||||
ptr += sizeof(header1);
|
||||
header3 = 0;
|
||||
memcpy(ptr, &header3, 1);
|
||||
ptr++;
|
||||
memcpy(ptr, cam->buffer, 64);
|
||||
ptr += 64;
|
||||
header3 = 1;
|
||||
memcpy(ptr, &header3, 1);
|
||||
ptr++;
|
||||
memcpy(ptr, cam->buffer + 64, 64);
|
||||
ptr += 64;
|
||||
memcpy(ptr, header2, sizeof(header2));
|
||||
ptr += sizeof(header2);
|
||||
memcpy(ptr, cam->buffer + 128,
|
||||
actual_length - 128);
|
||||
ptr += actual_length - 128;
|
||||
head = 1;
|
||||
DBG("header : %d %d %d %d %d %d %d %d %d",
|
||||
cam->buffer[0], cam->buffer[1], cam->buffer[2],
|
||||
cam->buffer[3], cam->buffer[4], cam->buffer[5],
|
||||
cam->buffer[6], cam->buffer[7], cam->buffer[8]);
|
||||
} else {
|
||||
memcpy(ptr, cam->buffer, actual_length);
|
||||
ptr += actual_length;
|
||||
}
|
||||
}
|
||||
/* ... until there is no more */
|
||||
while (actual_length == BUFFER_SIZE);
|
||||
|
||||
/* we skip the 2 first frames which are usually buggy */
|
||||
if (cam->skip) {
|
||||
cam->skip--;
|
||||
goto redo;
|
||||
}
|
||||
|
||||
/* go back to find the JPEG EOI marker */
|
||||
size = ptr - jpeg;
|
||||
ptr -= 2;
|
||||
while (ptr > jpeg) {
|
||||
if (*ptr == 0xFF && *(ptr + 1) == 0xD9
|
||||
&& *(ptr + 2) == 0xFF)
|
||||
break;
|
||||
ptr--;
|
||||
}
|
||||
if (ptr == jpeg)
|
||||
DBG("No EOI marker");
|
||||
|
||||
/* Sometimes there is junk data in the middle of the picture,
|
||||
* we want to skip this bogus frames */
|
||||
while (ptr > jpeg) {
|
||||
if (*ptr == 0xFF && *(ptr + 1) == 0xFF
|
||||
&& *(ptr + 2) == 0xFF)
|
||||
break;
|
||||
ptr--;
|
||||
}
|
||||
if (ptr != jpeg) {
|
||||
DBG("Bogus frame ? %d", cam->nb);
|
||||
goto redo;
|
||||
}
|
||||
|
||||
DBG("jpeg : %d %d %d %d %d %d %d %d",
|
||||
jpeg[0], jpeg[1], jpeg[2], jpeg[3],
|
||||
jpeg[4], jpeg[5], jpeg[6], jpeg[7]);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
|
||||
static ssize_t zr364xx_read(struct file *file, char *buf, size_t cnt,
|
||||
loff_t * ppos)
|
||||
{
|
||||
unsigned long count = cnt;
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
|
||||
DBG("zr364xx_read: read %d bytes.", (int) count);
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
if (!buf)
|
||||
return -EINVAL;
|
||||
|
||||
if (!count)
|
||||
return -EINVAL;
|
||||
|
||||
/* NoMan Sux ! */
|
||||
count = read_frame(cam, 0);
|
||||
|
||||
if (copy_to_user(buf, cam->framebuf, count))
|
||||
return -EFAULT;
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
|
||||
static int zr364xx_vidioc_querycap(struct file *file, void *priv,
|
||||
struct v4l2_capability *cap)
|
||||
{
|
||||
memset(cap, 0, sizeof(*cap));
|
||||
strcpy(cap->driver, DRIVER_DESC);
|
||||
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_enum_input(struct file *file, void *priv,
|
||||
struct v4l2_input *i)
|
||||
{
|
||||
if (i->index != 0)
|
||||
return -EINVAL;
|
||||
memset(i, 0, sizeof(*i));
|
||||
i->index = 0;
|
||||
strcpy(i->name, DRIVER_DESC " Camera");
|
||||
i->type = V4L2_INPUT_TYPE_CAMERA;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_g_input(struct file *file, void *priv,
|
||||
unsigned int *i)
|
||||
{
|
||||
*i = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_s_input(struct file *file, void *priv,
|
||||
unsigned int i)
|
||||
{
|
||||
if (i != 0)
|
||||
return -EINVAL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_queryctrl(struct file *file, void *priv,
|
||||
struct v4l2_queryctrl *c)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
switch (c->id) {
|
||||
case V4L2_CID_BRIGHTNESS:
|
||||
c->type = V4L2_CTRL_TYPE_INTEGER;
|
||||
strcpy(c->name, "Brightness");
|
||||
c->minimum = 0;
|
||||
c->maximum = 127;
|
||||
c->step = 1;
|
||||
c->default_value = cam->brightness;
|
||||
c->flags = 0;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_s_ctrl(struct file *file, void *priv,
|
||||
struct v4l2_control *c)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
switch (c->id) {
|
||||
case V4L2_CID_BRIGHTNESS:
|
||||
cam->brightness = c->value;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_g_ctrl(struct file *file, void *priv,
|
||||
struct v4l2_control *c)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
switch (c->id) {
|
||||
case V4L2_CID_BRIGHTNESS:
|
||||
c->value = cam->brightness;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_enum_fmt_cap(struct file *file,
|
||||
void *priv, struct v4l2_fmtdesc *f)
|
||||
{
|
||||
if (f->index > 0)
|
||||
return -EINVAL;
|
||||
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
||||
return -EINVAL;
|
||||
memset(f, 0, sizeof(*f));
|
||||
f->index = 0;
|
||||
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
f->flags = V4L2_FMT_FLAG_COMPRESSED;
|
||||
strcpy(f->description, "JPEG");
|
||||
f->pixelformat = V4L2_PIX_FMT_JPEG;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_try_fmt_cap(struct file *file, void *priv,
|
||||
struct v4l2_format *f)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
||||
return -EINVAL;
|
||||
if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG)
|
||||
return -EINVAL;
|
||||
if (f->fmt.pix.field != V4L2_FIELD_ANY &&
|
||||
f->fmt.pix.field != V4L2_FIELD_NONE)
|
||||
return -EINVAL;
|
||||
f->fmt.pix.field = V4L2_FIELD_NONE;
|
||||
f->fmt.pix.width = cam->width;
|
||||
f->fmt.pix.height = cam->height;
|
||||
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
|
||||
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
|
||||
f->fmt.pix.colorspace = 0;
|
||||
f->fmt.pix.priv = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_g_fmt_cap(struct file *file, void *priv,
|
||||
struct v4l2_format *f)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
||||
return -EINVAL;
|
||||
memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format));
|
||||
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
f->fmt.pix.pixelformat = V4L2_PIX_FMT_JPEG;
|
||||
f->fmt.pix.field = V4L2_FIELD_NONE;
|
||||
f->fmt.pix.width = cam->width;
|
||||
f->fmt.pix.height = cam->height;
|
||||
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
|
||||
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
|
||||
f->fmt.pix.colorspace = 0;
|
||||
f->fmt.pix.priv = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_s_fmt_cap(struct file *file, void *priv,
|
||||
struct v4l2_format *f)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
||||
return -EINVAL;
|
||||
if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG)
|
||||
return -EINVAL;
|
||||
if (f->fmt.pix.field != V4L2_FIELD_ANY &&
|
||||
f->fmt.pix.field != V4L2_FIELD_NONE)
|
||||
return -EINVAL;
|
||||
f->fmt.pix.field = V4L2_FIELD_NONE;
|
||||
f->fmt.pix.width = cam->width;
|
||||
f->fmt.pix.height = cam->height;
|
||||
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
|
||||
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
|
||||
f->fmt.pix.colorspace = 0;
|
||||
f->fmt.pix.priv = 0;
|
||||
DBG("ok!");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_streamon(struct file *file, void *priv,
|
||||
enum v4l2_buf_type type)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int zr364xx_vidioc_streamoff(struct file *file, void *priv,
|
||||
enum v4l2_buf_type type)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* open the camera */
|
||||
static int zr364xx_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam = video_get_drvdata(vdev);
|
||||
struct usb_device *udev = cam->udev;
|
||||
int i, err;
|
||||
|
||||
DBG("zr364xx_open");
|
||||
|
||||
cam->skip = 2;
|
||||
|
||||
err = video_exclusive_open(inode, file);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
if (!cam->framebuf) {
|
||||
cam->framebuf = vmalloc_32(MAX_FRAME_SIZE * FRAMES);
|
||||
if (!cam->framebuf) {
|
||||
info("vmalloc_32 failed!");
|
||||
return -ENOMEM;
|
||||
}
|
||||
}
|
||||
|
||||
mutex_lock(&cam->lock);
|
||||
for (i = 0; init[cam->method][i].size != -1; i++) {
|
||||
err =
|
||||
send_control_msg(udev, 1, init[cam->method][i].value,
|
||||
0, init[cam->method][i].bytes,
|
||||
init[cam->method][i].size);
|
||||
if (err < 0) {
|
||||
info("error during open sequence: %d", i);
|
||||
mutex_unlock(&cam->lock);
|
||||
return err;
|
||||
}
|
||||
}
|
||||
|
||||
file->private_data = vdev;
|
||||
|
||||
/* Added some delay here, since opening/closing the camera quickly,
|
||||
* like Ekiga does during its startup, can crash the webcam
|
||||
*/
|
||||
mdelay(100);
|
||||
|
||||
mutex_unlock(&cam->lock);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* release the camera */
|
||||
static int zr364xx_release(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
struct usb_device *udev;
|
||||
int i, err;
|
||||
|
||||
DBG("zr364xx_release");
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
udev = cam->udev;
|
||||
|
||||
mutex_lock(&cam->lock);
|
||||
for (i = 0; i < 2; i++) {
|
||||
err =
|
||||
send_control_msg(udev, 1, init[cam->method][i].value,
|
||||
0, init[i][cam->method].bytes,
|
||||
init[cam->method][i].size);
|
||||
if (err < 0) {
|
||||
info("error during release sequence");
|
||||
mutex_unlock(&cam->lock);
|
||||
return err;
|
||||
}
|
||||
}
|
||||
|
||||
file->private_data = NULL;
|
||||
video_exclusive_release(inode, file);
|
||||
|
||||
/* Added some delay here, since opening/closing the camera quickly,
|
||||
* like Ekiga does during its startup, can crash the webcam
|
||||
*/
|
||||
mdelay(100);
|
||||
|
||||
mutex_unlock(&cam->lock);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma)
|
||||
{
|
||||
void *pos;
|
||||
unsigned long start = vma->vm_start;
|
||||
unsigned long size = vma->vm_end - vma->vm_start;
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct zr364xx_camera *cam;
|
||||
|
||||
DBG("zr364xx_mmap: %ld\n", size);
|
||||
|
||||
if (vdev == NULL)
|
||||
return -ENODEV;
|
||||
cam = video_get_drvdata(vdev);
|
||||
|
||||
pos = cam->framebuf;
|
||||
while (size > 0) {
|
||||
if (vm_insert_page(vma, start, vmalloc_to_page(pos)))
|
||||
return -EAGAIN;
|
||||
start += PAGE_SIZE;
|
||||
pos += PAGE_SIZE;
|
||||
if (size > PAGE_SIZE)
|
||||
size -= PAGE_SIZE;
|
||||
else
|
||||
size = 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static struct file_operations zr364xx_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = zr364xx_open,
|
||||
.release = zr364xx_release,
|
||||
.read = zr364xx_read,
|
||||
.mmap = zr364xx_mmap,
|
||||
.ioctl = video_ioctl2,
|
||||
.llseek = no_llseek,
|
||||
};
|
||||
|
||||
static struct video_device zr364xx_template = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = DRIVER_DESC,
|
||||
.type = VID_TYPE_CAPTURE,
|
||||
.fops = &zr364xx_fops,
|
||||
.release = video_device_release,
|
||||
.minor = -1,
|
||||
|
||||
.vidioc_querycap = zr364xx_vidioc_querycap,
|
||||
.vidioc_enum_fmt_cap = zr364xx_vidioc_enum_fmt_cap,
|
||||
.vidioc_try_fmt_cap = zr364xx_vidioc_try_fmt_cap,
|
||||
.vidioc_s_fmt_cap = zr364xx_vidioc_s_fmt_cap,
|
||||
.vidioc_g_fmt_cap = zr364xx_vidioc_g_fmt_cap,
|
||||
.vidioc_enum_input = zr364xx_vidioc_enum_input,
|
||||
.vidioc_g_input = zr364xx_vidioc_g_input,
|
||||
.vidioc_s_input = zr364xx_vidioc_s_input,
|
||||
.vidioc_streamon = zr364xx_vidioc_streamon,
|
||||
.vidioc_streamoff = zr364xx_vidioc_streamoff,
|
||||
.vidioc_queryctrl = zr364xx_vidioc_queryctrl,
|
||||
.vidioc_g_ctrl = zr364xx_vidioc_g_ctrl,
|
||||
.vidioc_s_ctrl = zr364xx_vidioc_s_ctrl,
|
||||
};
|
||||
|
||||
|
||||
|
||||
/*******************/
|
||||
/* USB integration */
|
||||
/*******************/
|
||||
|
||||
static int zr364xx_probe(struct usb_interface *intf,
|
||||
const struct usb_device_id *id)
|
||||
{
|
||||
struct usb_device *udev = interface_to_usbdev(intf);
|
||||
struct zr364xx_camera *cam = NULL;
|
||||
|
||||
DBG("probing...");
|
||||
|
||||
info(DRIVER_DESC " compatible webcam plugged");
|
||||
info("model %04x:%04x detected", udev->descriptor.idVendor,
|
||||
udev->descriptor.idProduct);
|
||||
|
||||
if ((cam =
|
||||
kmalloc(sizeof(struct zr364xx_camera), GFP_KERNEL)) == NULL) {
|
||||
info("cam: out of memory !");
|
||||
return -ENODEV;
|
||||
}
|
||||
memset(cam, 0x00, sizeof(struct zr364xx_camera));
|
||||
/* save the init method used by this camera */
|
||||
cam->method = id->driver_info;
|
||||
|
||||
cam->vdev = video_device_alloc();
|
||||
if (cam->vdev == NULL) {
|
||||
info("cam->vdev: out of memory !");
|
||||
kfree(cam);
|
||||
return -ENODEV;
|
||||
}
|
||||
memcpy(cam->vdev, &zr364xx_template, sizeof(zr364xx_template));
|
||||
video_set_drvdata(cam->vdev, cam);
|
||||
if (debug)
|
||||
cam->vdev->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
|
||||
|
||||
cam->udev = udev;
|
||||
|
||||
if ((cam->buffer = kmalloc(BUFFER_SIZE, GFP_KERNEL)) == NULL) {
|
||||
info("cam->buffer: out of memory !");
|
||||
video_device_release(cam->vdev);
|
||||
kfree(cam);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
switch (mode) {
|
||||
case 1:
|
||||
info("160x120 mode selected");
|
||||
cam->width = 160;
|
||||
cam->height = 120;
|
||||
break;
|
||||
case 2:
|
||||
info("640x480 mode selected");
|
||||
cam->width = 640;
|
||||
cam->height = 480;
|
||||
break;
|
||||
default:
|
||||
info("320x240 mode selected");
|
||||
cam->width = 320;
|
||||
cam->height = 240;
|
||||
break;
|
||||
}
|
||||
|
||||
m0d1[0] = mode;
|
||||
m1[2].value = 0xf000 + mode;
|
||||
m2[1].value = 0xf000 + mode;
|
||||
header2[437] = cam->height / 256;
|
||||
header2[438] = cam->height % 256;
|
||||
header2[439] = cam->width / 256;
|
||||
header2[440] = cam->width % 256;
|
||||
|
||||
cam->nb = 0;
|
||||
cam->brightness = 64;
|
||||
mutex_init(&cam->lock);
|
||||
|
||||
if (video_register_device(cam->vdev, VFL_TYPE_GRABBER, -1) == -1) {
|
||||
info("video_register_device failed");
|
||||
video_device_release(cam->vdev);
|
||||
kfree(cam->buffer);
|
||||
kfree(cam);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
usb_set_intfdata(intf, cam);
|
||||
|
||||
info(DRIVER_DESC " controlling video device %d", cam->vdev->minor);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static void zr364xx_disconnect(struct usb_interface *intf)
|
||||
{
|
||||
struct zr364xx_camera *cam = usb_get_intfdata(intf);
|
||||
usb_set_intfdata(intf, NULL);
|
||||
dev_set_drvdata(&intf->dev, NULL);
|
||||
info(DRIVER_DESC " webcam unplugged");
|
||||
if (cam->vdev)
|
||||
video_unregister_device(cam->vdev);
|
||||
cam->vdev = NULL;
|
||||
kfree(cam->buffer);
|
||||
if (cam->framebuf)
|
||||
vfree(cam->framebuf);
|
||||
kfree(cam);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**********************/
|
||||
/* Module integration */
|
||||
/**********************/
|
||||
|
||||
static struct usb_driver zr364xx_driver = {
|
||||
.name = "zr364xx",
|
||||
.probe = zr364xx_probe,
|
||||
.disconnect = zr364xx_disconnect,
|
||||
.id_table = device_table
|
||||
};
|
||||
|
||||
|
||||
static int __init zr364xx_init(void)
|
||||
{
|
||||
int retval;
|
||||
retval = usb_register(&zr364xx_driver) < 0;
|
||||
if (retval)
|
||||
info("usb_register failed!");
|
||||
else
|
||||
info(DRIVER_DESC " module loaded");
|
||||
return retval;
|
||||
}
|
||||
|
||||
|
||||
static void __exit zr364xx_exit(void)
|
||||
{
|
||||
info(DRIVER_DESC " module unloaded");
|
||||
usb_deregister(&zr364xx_driver);
|
||||
}
|
||||
|
||||
|
||||
module_init(zr364xx_init);
|
||||
module_exit(zr364xx_exit);
|
||||
|
||||
MODULE_AUTHOR(DRIVER_AUTHOR);
|
||||
MODULE_DESCRIPTION(DRIVER_DESC);
|
||||
MODULE_LICENSE("GPL");
|
||||
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