usb.rar_EP9315_linux usb

/* * OmniVision OV511 Camera-to-USB Bridge Driver * * Copyright (c) 1999-2003 Mark W. McClelland * Original decompression code Copyright 1998-2000 OmniVision Technologies * Many improvements by Bret Wallach <[email protected]> * Color fixes by by Orion Sky Lawlor <[email protected]> (2/26/2000) * Snapshot code by Kevin Moore * OV7620 fixes by Charl P. Botha <[email protected]> * Changes by Claudio Matsuoka <[email protected]> * Original SAA7111A code by Dave Perks <[email protected]> * URB error messages from pwc driver by Nemosoft * generic_ioctl() code from videodev.c by Gerd Knorr and Alan Cox * Memory management (rvmalloc) code from bttv driver, by Gerd Knorr and others * * Based on the Linux CPiA driver written by Peter Pregler, * Scott J. Bertin and Johannes Erdfelt. * * Please see the file: linux/Documentation/usb/ov511.txt * and the website at: http://alpha.dyndns.org/ov511 * for more info. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/config.h> #include <linux/version.h> #include <linux/module.h> #include <linux/init.h> #include <linux/fs.h> #include <linux/vmalloc.h> #include <linux/slab.h> #include <linux/proc_fs.h> #include <linux/ctype.h> #include <linux/pagemap.h> #include <asm/io.h> #include <asm/semaphore.h> #include <asm/processor.h> #include <linux/wrapper.h> #include <linux/mm.h> #if defined (__i386__) #include <asm/cpufeature.h> #endif #include "ov511.h" /* * Version Information */ #define DRIVER_VERSION "v1.63 for Linux 2.4" #define EMAIL "[email protected]" #define DRIVER_AUTHOR "Mark McClelland <[email protected]> & Bret Wallach \ & Orion Sky Lawlor <[email protected]> & Kevin Moore & Charl P. Botha \ <[email protected]> & Claudio Matsuoka <[email protected]>" #define DRIVER_DESC "ov511 USB Camera Driver" #define OV511_I2C_RETRIES 3 #define ENABLE_Y_QUANTABLE 1 #define ENABLE_UV_QUANTABLE 1 #define OV511_MAX_UNIT_VIDEO 16 /* Pixel count * 3 bytes for RGB */ #define MAX_FRAME_SIZE(w, h) ((w) * (h) * 3) #define MAX_DATA_SIZE(w, h) (MAX_FRAME_SIZE(w, h) + sizeof(struct timeval)) /* Max size * bytes per YUV420 pixel (1.5) + one extra isoc frame for safety */ #define MAX_RAW_DATA_SIZE(w, h) ((w) * (h) * 3 / 2 + 1024) #define FATAL_ERROR(rc) ((rc) < 0 && (rc) != -EPERM) /********************************************************************** * Module Parameters * (See ov511.txt for detailed descriptions of these) **********************************************************************/ /* These variables (and all static globals) default to zero */ static int autobright = 1; static int autogain = 1; static int autoexp = 1; static int debug; static int snapshot; static int fix_rgb_offset; static int force_rgb; static int cams = 1; static int compress; static int testpat; static int dumppix; static int led = 1; static int dump_bridge; static int dump_sensor; static int printph; static int phy = 0x1f; static int phuv = 0x05; static int pvy = 0x06; static int pvuv = 0x06; static int qhy = 0x14; static int qhuv = 0x03; static int qvy = 0x04; static int qvuv = 0x04; static int lightfreq; static int bandingfilter; static int clockdiv = -1; static int packetsize = -1; static int framedrop = -1; static int fastset; static int force_palette; static int backlight; static int unit_video[OV511_MAX_UNIT_VIDEO]; static int remove_zeros; static int mirror; static int ov518_color; MODULE_PARM(autobright, "i"); MODULE_PARM_DESC(autobright, "Sensor automatically changes brightness"); MODULE_PARM(autogain, "i"); MODULE_PARM_DESC(autogain, "Sensor automatically changes gain"); MODULE_PARM(autoexp, "i"); MODULE_PARM_DESC(autoexp, "Sensor automatically changes exposure"); MODULE_PARM(debug, "i"); MODULE_PARM_DESC(debug, "Debug level: 0=none, 1=inits, 2=warning, 3=config, 4=functions, 5=max"); MODULE_PARM(snapshot, "i"); MODULE_PARM_DESC(snapshot, "Enable snapshot mode"); MODULE_PARM(fix_rgb_offset, "i"); MODULE_PARM_DESC(fix_rgb_offset, "Fix vertical misalignment of red and blue at 640x480"); MODULE_PARM(force_rgb, "i"); MODULE_PARM_DESC(force_rgb, "Read RGB instead of BGR"); MODULE_PARM(cams, "i"); MODULE_PARM_DESC(cams, "Number of simultaneous cameras"); MODULE_PARM(compress, "i"); MODULE_PARM_DESC(compress, "Turn on compression (not reliable yet)"); MODULE_PARM(testpat, "i"); MODULE_PARM_DESC(testpat, "Replace image with vertical bar testpattern (only partially working)"); MODULE_PARM(dumppix, "i"); MODULE_PARM_DESC(dumppix, "Dump raw pixel data"); MODULE_PARM(led, "i"); MODULE_PARM_DESC(led, "LED policy (OV511+ or later). 0=off, 1=on (default), 2=auto (on when open)"); MODULE_PARM(dump_bridge, "i"); MODULE_PARM_DESC(dump_bridge, "Dump the bridge registers"); MODULE_PARM(dump_sensor, "i"); MODULE_PARM_DESC(dump_sensor, "Dump the sensor registers"); MODULE_PARM(printph, "i"); MODULE_PARM_DESC(printph, "Print frame start/end headers"); MODULE_PARM(phy, "i"); MODULE_PARM_DESC(phy, "Prediction range (horiz. Y)"); MODULE_PARM(phuv, "i"); MODULE_PARM_DESC(phuv, "Prediction range (horiz. UV)"); MODULE_PARM(pvy, "i"); MODULE_PARM_DESC(pvy, "Prediction range (vert. Y)"); MODULE_PARM(pvuv, "i"); MODULE_PARM_DESC(pvuv, "Prediction range (vert. UV)"); MODULE_PARM(qhy, "i"); MODULE_PARM_DESC(qhy, "Quantization threshold (horiz. Y)"); MODULE_PARM(qhuv, "i"); MODULE_PARM_DESC(qhuv, "Quantization threshold (horiz. UV)"); MODULE_PARM(qvy, "i"); MODULE_PARM_DESC(qvy, "Quantization threshold (vert. Y)"); MODULE_PARM(qvuv, "i"); MODULE_PARM_DESC(qvuv, "Quantization threshold (vert. UV)"); MODULE_PARM(lightfreq, "i"); MODULE_PARM_DESC(lightfreq, "Light frequency. Set to 50 or 60 Hz, or zero for default settings"); MODULE_PARM(bandingfilter, "i"); MODULE_PARM_DESC(bandingfilter, "Enable banding filter (to reduce effects of fluorescent lighting)"); MODULE_PARM(clockdiv, "i"); MODULE_PARM_DESC(clockdiv, "Force pixel clock divisor to a specific value"); MODULE_PARM(packetsize, "i"); MODULE_PARM_DESC(packetsize, "Force a specific isoc packet size"); MODULE_PARM(framedrop, "i"); MODULE_PARM_DESC(framedrop, "Force a specific frame drop register setting"); MODULE_PARM(fastset, "i"); MODULE_PARM_DESC(fastset, "Allows picture settings to take effect immediately"); MODULE_PARM(force_palette, "i"); MODULE_PARM_DESC(force_palette, "Force the palette to a specific value"); MODULE_PARM(backlight, "i"); MODULE_PARM_DESC(backlight, "For objects that are lit from behind"); MODULE_PARM(unit_video, "1-" __MODULE_STRING(OV511_MAX_UNIT_VIDEO) "i"); MODULE_PARM_DESC(unit_video, "Force use of specific minor number(s). 0 is not allowed."); MODULE_PARM(remove_zeros, "i"); MODULE_PARM_DESC(remove_zeros, "Remove zero-padding from uncompressed incoming data"); MODULE_PARM(mirror, "i"); MODULE_PARM_DESC(mirror, "Reverse image horizontally"); MODULE_PARM(ov518_color, "i"); MODULE_PARM_DESC(ov518_color, "Enable OV518 color (experimental)"); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); /********************************************************************** * Miscellaneous Globals **********************************************************************/ static struct usb_driver ov511_driver; static struct ov51x_decomp_ops *ov511_decomp_ops; static struct ov51x_decomp_ops *ov511_mmx_decomp_ops; static struct ov5