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1275 |
phoenix |
/*
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* USB ViCam WebCam driver
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* Copyright (c) 2002 Joe Burks (jburks@wavicle.org),
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* Christopher L Cheney (ccheney@cheney.cx),
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* Pavel Machek (pavel@suse.cz),
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* John Tyner (jtyner@cs.ucr.edu),
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* Monroe Williams (monroe@pobox.com)
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*
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* Supports 3COM HomeConnect PC Digital WebCam
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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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* This source code is based heavily on the CPiA webcam driver which was
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* written by Peter Pregler, Scott J. Bertin and Johannes Erdfelt
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*
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* Portions of this code were also copied from usbvideo.c
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*
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* Special thanks to the the whole team at Sourceforge for help making
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* this driver become a reality. Notably:
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* Andy Armstrong who reverse engineered the color encoding and
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* Pavel Machek and Chris Cheney who worked on reverse engineering the
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* camera controls and wrote the first generation driver.
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*/
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#include <linux/kernel.h>
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#include <linux/wrapper.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/videodev.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 "usbvideo.h"
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// #define VICAM_DEBUG
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#ifndef MODULE_LICENSE
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#define MODULE_LICENSE(a)
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#endif
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#ifndef bool
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#define bool int
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#endif
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#ifdef VICAM_DEBUG
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#define ADBG(lineno,fmt,args...) printk(fmt, jiffies, __FUNCTION__, lineno, ##args)
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#define DBG(fmt,args...) ADBG((__LINE__),KERN_DEBUG __FILE__"(%ld):%s (%d):"fmt,##args)
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#else
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#define DBG(fmn,args...) do {} while(0)
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#endif
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/* Version Information */
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#define DRIVER_VERSION "v1.0"
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#define DRIVER_AUTHOR "Joe Burks, jburks@wavicle.org"
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#define DRIVER_DESC "ViCam WebCam Driver"
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/* Define these values to match your device */
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#define USB_VICAM_VENDOR_ID 0x04c1
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#define USB_VICAM_PRODUCT_ID 0x009d
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#define VICAM_BYTES_PER_PIXEL 3
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#define VICAM_MAX_READ_SIZE (512*242+128)
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#define VICAM_MAX_FRAME_SIZE (VICAM_BYTES_PER_PIXEL*320*240)
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#define VICAM_FRAMES 2
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/* Not sure what all the bytes in these char
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* arrays do, but they're necessary to make
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* the camera work.
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*/
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| 84 |
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static unsigned char setup1[] = {
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| 85 |
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0xB6, 0xC3, 0x1F, 0x00, 0x02, 0x64, 0xE7, 0x67,
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| 86 |
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0xFD, 0xFF, 0x0E, 0xC0, 0xE7, 0x09, 0xDE, 0x00,
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| 87 |
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0x8E, 0x00, 0xC0, 0x09, 0x40, 0x03, 0xC0, 0x17,
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| 88 |
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0x44, 0x03, 0x4B, 0xAF, 0xC0, 0x07, 0x00, 0x00,
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| 89 |
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0x4B, 0xAF, 0x97, 0xCF, 0x00, 0x00
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| 90 |
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};
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| 91 |
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| 92 |
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static unsigned char setup2[] = {
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| 93 |
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0xB6, 0xC3, 0x03, 0x00, 0x03, 0x64, 0x18, 0x00,
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| 94 |
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0x00, 0x00
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| 95 |
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};
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| 96 |
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| 97 |
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static unsigned char setup3[] = {
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| 98 |
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0xB6, 0xC3, 0x01, 0x00, 0x06, 0x64, 0x00, 0x00
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| 99 |
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};
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| 100 |
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|
|
| 101 |
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static unsigned char setup4[] = {
|
| 102 |
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0xB6, 0xC3, 0x8F, 0x06, 0x02, 0x64, 0xE7, 0x07,
|
| 103 |
|
|
0x00, 0x00, 0x08, 0xC0, 0xE7, 0x07, 0x00, 0x00,
|
| 104 |
|
|
0x3E, 0xC0, 0xE7, 0x07, 0x54, 0x01, 0xAA, 0x00,
|
| 105 |
|
|
0xE7, 0x07, 0xC8, 0x05, 0xB6, 0x00, 0xE7, 0x07,
|
| 106 |
|
|
0x42, 0x01, 0xD2, 0x00, 0xE7, 0x07, 0x7C, 0x00,
|
| 107 |
|
|
0x16, 0x00, 0xE7, 0x07, 0x56, 0x00, 0x18, 0x00,
|
| 108 |
|
|
0xE7, 0x07, 0x06, 0x00, 0x92, 0xC0, 0xE7, 0x07,
|
| 109 |
|
|
0x00, 0x00, 0x1E, 0xC0, 0xE7, 0x07, 0xFF, 0xFF,
|
| 110 |
|
|
0x22, 0xC0, 0xE7, 0x07, 0x04, 0x00, 0x24, 0xC0,
|
| 111 |
|
|
0xE7, 0x07, 0xEC, 0x27, 0x28, 0xC0, 0xE7, 0x07,
|
| 112 |
|
|
0x16, 0x01, 0x8E, 0x00, 0xE7, 0x87, 0x01, 0x00,
|
| 113 |
|
|
0x0E, 0xC0, 0x97, 0xCF, 0xD7, 0x09, 0x00, 0xC0,
|
| 114 |
|
|
0xE7, 0x77, 0x01, 0x00, 0x92, 0xC0, 0x09, 0xC1,
|
| 115 |
|
|
0xE7, 0x09, 0xFE, 0x05, 0x24, 0x01, 0xE7, 0x09,
|
| 116 |
|
|
0x04, 0x06, 0x26, 0x01, 0xE7, 0x07, 0x07, 0x00,
|
| 117 |
|
|
0x92, 0xC0, 0xE7, 0x05, 0x00, 0xC0, 0xC0, 0xDF,
|
| 118 |
|
|
0x97, 0xCF, 0x17, 0x00, 0x57, 0x00, 0x17, 0x02,
|
| 119 |
|
|
0xD7, 0x09, 0x00, 0xC0, 0xE7, 0x77, 0x01, 0x00,
|
| 120 |
|
|
0x92, 0xC0, 0x0A, 0xC1, 0xE7, 0x57, 0xFF, 0xFF,
|
| 121 |
|
|
0xFA, 0x05, 0x0D, 0xC0, 0xE7, 0x57, 0x00, 0x00,
|
| 122 |
|
|
0xFA, 0x05, 0x0F, 0xC0, 0x9F, 0xAF, 0xC6, 0x00,
|
| 123 |
|
|
0xE7, 0x05, 0x00, 0xC0, 0xC8, 0x05, 0xC1, 0x05,
|
| 124 |
|
|
0xC0, 0x05, 0xC0, 0xDF, 0x97, 0xCF, 0x27, 0xDA,
|
| 125 |
|
|
0xFA, 0x05, 0xEF, 0x07, 0x01, 0x00, 0x0B, 0x06,
|
| 126 |
|
|
0x73, 0xCF, 0x9F, 0xAF, 0x78, 0x01, 0x9F, 0xAF,
|
| 127 |
|
|
0x1A, 0x03, 0x6E, 0xCF, 0xE7, 0x09, 0xFC, 0x05,
|
| 128 |
|
|
0x24, 0x01, 0xE7, 0x09, 0x02, 0x06, 0x26, 0x01,
|
| 129 |
|
|
0xE7, 0x07, 0x07, 0x00, 0x92, 0xC0, 0xE7, 0x09,
|
| 130 |
|
|
0xFC, 0x05, 0xFE, 0x05, 0xE7, 0x09, 0x02, 0x06,
|
| 131 |
|
|
0x04, 0x06, 0xE7, 0x09, 0x00, 0x06, 0xFC, 0x05,
|
| 132 |
|
|
0xE7, 0x09, 0xFE, 0x05, 0x00, 0x06, 0x27, 0xDA,
|
| 133 |
|
|
0xFA, 0x05, 0xE7, 0x57, 0x01, 0x00, 0xFA, 0x05,
|
| 134 |
|
|
0x02, 0xCA, 0x04, 0xC0, 0x97, 0xCF, 0x9F, 0xAF,
|
| 135 |
|
|
0x66, 0x05, 0x97, 0xCF, 0xE7, 0x07, 0x40, 0x00,
|
| 136 |
|
|
0x02, 0x06, 0xC8, 0x09, 0xFC, 0x05, 0x9F, 0xAF,
|
| 137 |
|
|
0xDA, 0x02, 0x97, 0xCF, 0xCF, 0x17, 0x02, 0x00,
|
| 138 |
|
|
0xEF, 0x57, 0x81, 0x00, 0x09, 0x06, 0x9F, 0xA0,
|
| 139 |
|
|
0xB6, 0x01, 0xEF, 0x57, 0x80, 0x00, 0x09, 0x06,
|
| 140 |
|
|
0x9F, 0xA0, 0x40, 0x02, 0xEF, 0x57, 0x01, 0x00,
|
| 141 |
|
|
0x0B, 0x06, 0x9F, 0xA0, 0x46, 0x03, 0xE7, 0x07,
|
| 142 |
|
|
0x01, 0x00, 0x0A, 0xC0, 0x46, 0xAF, 0x47, 0xAF,
|
| 143 |
|
|
0x9F, 0xAF, 0x40, 0x02, 0xE7, 0x07, 0x2E, 0x00,
|
| 144 |
|
|
0x0A, 0xC0, 0xEF, 0x87, 0x80, 0x00, 0x09, 0x06,
|
| 145 |
|
|
0x97, 0xCF, 0x00, 0x0E, 0x01, 0x00, 0xC0, 0x57,
|
| 146 |
|
|
0x51, 0x00, 0x9F, 0xC0, 0x9E, 0x02, 0xC0, 0x57,
|
| 147 |
|
|
0x50, 0x00, 0x20, 0xC0, 0xC0, 0x57, 0x55, 0x00,
|
| 148 |
|
|
0x12, 0xC0, 0xC0, 0x57, 0x56, 0x00, 0x9F, 0xC0,
|
| 149 |
|
|
0x72, 0x02, 0x9F, 0xCF, 0xD6, 0x02, 0xC1, 0x0B,
|
| 150 |
|
|
0x08, 0x06, 0x01, 0xD0, 0x6F, 0x90, 0x08, 0x06,
|
| 151 |
|
|
0xC0, 0x07, 0x08, 0x00, 0xC1, 0x0B, 0x08, 0x06,
|
| 152 |
|
|
0x9F, 0xAF, 0x28, 0x05, 0x97, 0xCF, 0x2F, 0x0E,
|
| 153 |
|
|
0x02, 0x00, 0x08, 0x06, 0xC0, 0x07, 0x08, 0x00,
|
| 154 |
|
|
0xC1, 0x0B, 0x08, 0x06, 0x9F, 0xAF, 0x28, 0x05,
|
| 155 |
|
|
0x9F, 0xCF, 0xD6, 0x02, 0x2F, 0x0E, 0x02, 0x00,
|
| 156 |
|
|
0x09, 0x06, 0xEF, 0x87, 0x80, 0x00, 0x09, 0x06,
|
| 157 |
|
|
0x9F, 0xCF, 0xD6, 0x02, 0xEF, 0x67, 0x7F, 0xFF,
|
| 158 |
|
|
0x09, 0x06, 0xE7, 0x67, 0xFF, 0xFD, 0x22, 0xC0,
|
| 159 |
|
|
0xE7, 0x67, 0xEF, 0xFF, 0x24, 0xC0, 0xE7, 0x87,
|
| 160 |
|
|
0x10, 0x00, 0x28, 0xC0, 0x9F, 0xAF, 0xB8, 0x05,
|
| 161 |
|
|
0xE7, 0x87, 0xE0, 0x21, 0x24, 0xC0, 0x9F, 0xAF,
|
| 162 |
|
|
0xA8, 0x05, 0xE7, 0x87, 0x08, 0x00, 0x24, 0xC0,
|
| 163 |
|
|
0xE7, 0x67, 0xDF, 0xFF, 0x24, 0xC0, 0xC8, 0x07,
|
| 164 |
|
|
0x0A, 0x00, 0xC0, 0x07, 0x00, 0x00, 0xC1, 0x07,
|
| 165 |
|
|
0x01, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0x9F, 0xAF,
|
| 166 |
|
|
0xB8, 0x05, 0xC0, 0x07, 0x9E, 0x00, 0x9F, 0xAF,
|
| 167 |
|
|
0x44, 0x05, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0,
|
| 168 |
|
|
0xC0, 0x09, 0x20, 0xC0, 0xE7, 0x87, 0x00, 0x01,
|
| 169 |
|
|
0x24, 0xC0, 0xC0, 0x77, 0x00, 0x02, 0x0F, 0xC1,
|
| 170 |
|
|
0xE7, 0x67, 0xF7, 0xFF, 0x24, 0xC0, 0xE7, 0x67,
|
| 171 |
|
|
0xF7, 0xFF, 0x24, 0xC0, 0xE7, 0x87, 0x08, 0x00,
|
| 172 |
|
|
0x24, 0xC0, 0x08, 0xDA, 0x5E, 0xC1, 0xEF, 0x07,
|
| 173 |
|
|
0x80, 0x00, 0x09, 0x06, 0x97, 0xCF, 0xEF, 0x07,
|
| 174 |
|
|
0x01, 0x00, 0x0A, 0x06, 0x97, 0xCF, 0xEF, 0x07,
|
| 175 |
|
|
0x00, 0x00, 0x0B, 0x06, 0xEF, 0x07, 0x00, 0x00,
|
| 176 |
|
|
0x0A, 0x06, 0xEF, 0x67, 0x7F, 0xFF, 0x09, 0x06,
|
| 177 |
|
|
0xEF, 0x07, 0x00, 0x00, 0x0D, 0x06, 0xE7, 0x67,
|
| 178 |
|
|
0xEF, 0xFF, 0x28, 0xC0, 0xE7, 0x67, 0x17, 0xD8,
|
| 179 |
|
|
0x24, 0xC0, 0xE7, 0x07, 0x00, 0x00, 0x1E, 0xC0,
|
| 180 |
|
|
0xE7, 0x07, 0xFF, 0xFF, 0x22, 0xC0, 0x97, 0xCF,
|
| 181 |
|
|
0xC8, 0x07, 0x0E, 0x06, 0x9F, 0xAF, 0xDA, 0x02,
|
| 182 |
|
|
0xE7, 0x07, 0x00, 0x00, 0xF2, 0x05, 0xE7, 0x07,
|
| 183 |
|
|
0x10, 0x00, 0xF6, 0x05, 0xE7, 0x07, 0x0E, 0x06,
|
| 184 |
|
|
0xF4, 0x05, 0xE7, 0x07, 0xD6, 0x02, 0xF8, 0x05,
|
| 185 |
|
|
0xC8, 0x07, 0xF2, 0x05, 0xC1, 0x07, 0x00, 0x80,
|
| 186 |
|
|
0x50, 0xAF, 0x97, 0xCF, 0x2F, 0x0C, 0x02, 0x00,
|
| 187 |
|
|
0x07, 0x06, 0x2F, 0x0C, 0x04, 0x00, 0x06, 0x06,
|
| 188 |
|
|
0xE7, 0x07, 0x00, 0x00, 0xF2, 0x05, 0xE7, 0x07,
|
| 189 |
|
|
0x10, 0x00, 0xF6, 0x05, 0xE7, 0x07, 0xE2, 0x05,
|
| 190 |
|
|
0xF4, 0x05, 0xE7, 0x07, 0xCE, 0x02, 0xF8, 0x05,
|
| 191 |
|
|
0xC8, 0x07, 0xF2, 0x05, 0xC1, 0x07, 0x00, 0x80,
|
| 192 |
|
|
0x51, 0xAF, 0x97, 0xCF, 0x9F, 0xAF, 0x66, 0x04,
|
| 193 |
|
|
0x9F, 0xAF, 0x1A, 0x03, 0x59, 0xAF, 0x97, 0xCF,
|
| 194 |
|
|
0xC0, 0x07, 0x0E, 0x00, 0xC1, 0x0B, 0x0C, 0x06,
|
| 195 |
|
|
0x41, 0xD1, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07,
|
| 196 |
|
|
0x3C, 0x00, 0x9F, 0xAF, 0x44, 0x05, 0x68, 0x00,
|
| 197 |
|
|
0xC0, 0x07, 0x3B, 0x00, 0x9F, 0xAF, 0x44, 0x05,
|
| 198 |
|
|
0x6F, 0x00, 0x0C, 0x06, 0x68, 0x00, 0xE0, 0x07,
|
| 199 |
|
|
0x04, 0x01, 0xE8, 0x0B, 0x0A, 0x06, 0xE8, 0x07,
|
| 200 |
|
|
0x00, 0x00, 0xE0, 0x07, 0x00, 0x02, 0xE0, 0x07,
|
| 201 |
|
|
0xEC, 0x01, 0xE0, 0x07, 0xFC, 0xFF, 0x97, 0xCF,
|
| 202 |
|
|
0xE7, 0x07, 0xFF, 0xFF, 0xFA, 0x05, 0xEF, 0x07,
|
| 203 |
|
|
0x00, 0x00, 0x0B, 0x06, 0xE7, 0x07, 0x0E, 0x06,
|
| 204 |
|
|
0x24, 0x01, 0xE7, 0x07, 0x0E, 0x06, 0xFE, 0x05,
|
| 205 |
|
|
0xE7, 0x07, 0x40, 0x00, 0x26, 0x01, 0xE7, 0x07,
|
| 206 |
|
|
0x40, 0x00, 0x04, 0x06, 0xE7, 0x07, 0x07, 0x00,
|
| 207 |
|
|
0x92, 0xC0, 0x97, 0xCF, 0xEF, 0x07, 0x02, 0x00,
|
| 208 |
|
|
0x0B, 0x06, 0x9F, 0xAF, 0x78, 0x01, 0xEF, 0x77,
|
| 209 |
|
|
0x80, 0x00, 0x07, 0x06, 0x9F, 0xC0, 0x14, 0x04,
|
| 210 |
|
|
0xEF, 0x77, 0x01, 0x00, 0x07, 0x06, 0x37, 0xC0,
|
| 211 |
|
|
0xEF, 0x77, 0x01, 0x00, 0x0D, 0x06, 0x0F, 0xC1,
|
| 212 |
|
|
0xEF, 0x07, 0x01, 0x00, 0x0D, 0x06, 0xC0, 0x07,
|
| 213 |
|
|
0x02, 0x00, 0xC1, 0x07, 0x30, 0x00, 0x9F, 0xAF,
|
| 214 |
|
|
0x28, 0x05, 0xC0, 0x07, 0x01, 0x00, 0xC1, 0x07,
|
| 215 |
|
|
0x02, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0xC8, 0x07,
|
| 216 |
|
|
0xFF, 0x4F, 0x9F, 0xAF, 0xA8, 0x05, 0xC0, 0x07,
|
| 217 |
|
|
0x38, 0x00, 0x9F, 0xAF, 0x44, 0x05, 0xC1, 0x77,
|
| 218 |
|
|
0x03, 0x00, 0x02, 0xC1, 0x08, 0xDA, 0x75, 0xC1,
|
| 219 |
|
|
0xC1, 0x77, 0x01, 0x00, 0x0A, 0xC1, 0xC0, 0x07,
|
| 220 |
|
|
0x01, 0x00, 0xC1, 0x07, 0x02, 0x00, 0x9F, 0xAF,
|
| 221 |
|
|
0x28, 0x05, 0xEF, 0x07, 0x01, 0x00, 0x06, 0x06,
|
| 222 |
|
|
0x2C, 0xCF, 0xC0, 0x07, 0x01, 0x00, 0xC1, 0x07,
|
| 223 |
|
|
0x04, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0xEF, 0x07,
|
| 224 |
|
|
0x00, 0x00, 0x06, 0x06, 0x22, 0xCF, 0xEF, 0x07,
|
| 225 |
|
|
0x00, 0x00, 0x0D, 0x06, 0xEF, 0x57, 0x01, 0x00,
|
| 226 |
|
|
0x06, 0x06, 0x1B, 0xC0, 0xC0, 0x07, 0x01, 0x00,
|
| 227 |
|
|
0xC1, 0x07, 0x01, 0x00, 0x9F, 0xAF, 0x28, 0x05,
|
| 228 |
|
|
0xC0, 0x07, 0x02, 0x00, 0xC1, 0x07, 0x30, 0x00,
|
| 229 |
|
|
0x9F, 0xAF, 0x28, 0x05, 0xC8, 0x07, 0xFF, 0x4F,
|
| 230 |
|
|
0x9F, 0xAF, 0xA8, 0x05, 0xC0, 0x07, 0x38, 0x00,
|
| 231 |
|
|
0x9F, 0xAF, 0x44, 0x05, 0xC1, 0x67, 0x03, 0x00,
|
| 232 |
|
|
0xC1, 0x57, 0x03, 0x00, 0x02, 0xC0, 0x08, 0xDA,
|
| 233 |
|
|
0x73, 0xC1, 0xC0, 0x07, 0x02, 0x00, 0xC1, 0x07,
|
| 234 |
|
|
0x12, 0x00, 0xEF, 0x57, 0x00, 0x00, 0x06, 0x06,
|
| 235 |
|
|
0x02, 0xC0, 0xC1, 0x07, 0x23, 0x00, 0x9F, 0xAF,
|
| 236 |
|
|
0x28, 0x05, 0xC0, 0x07, 0x14, 0x00, 0xC1, 0x0B,
|
| 237 |
|
|
0xEA, 0x05, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07,
|
| 238 |
|
|
0x3E, 0x00, 0x9F, 0xAF, 0x0A, 0x05, 0xE7, 0x09,
|
| 239 |
|
|
0xE4, 0x05, 0xFA, 0x05, 0x27, 0xD8, 0xFA, 0x05,
|
| 240 |
|
|
0xE7, 0x07, 0x0E, 0x06, 0xFC, 0x05, 0xE7, 0x07,
|
| 241 |
|
|
0x4E, 0x06, 0x00, 0x06, 0xE7, 0x07, 0x40, 0x00,
|
| 242 |
|
|
0x02, 0x06, 0x9F, 0xAF, 0x66, 0x05, 0x9F, 0xAF,
|
| 243 |
|
|
0xC6, 0x00, 0x97, 0xCF, 0xC1, 0x0B, 0xE2, 0x05,
|
| 244 |
|
|
0x41, 0xD0, 0x01, 0xD2, 0xC1, 0x17, 0x23, 0x00,
|
| 245 |
|
|
0x9F, 0xAF, 0xDC, 0x04, 0xC0, 0x07, 0x04, 0x00,
|
| 246 |
|
|
0xC1, 0x0B, 0xE3, 0x05, 0x9F, 0xAF, 0x28, 0x05,
|
| 247 |
|
|
0xC0, 0x07, 0x06, 0x00, 0xC1, 0x09, 0xE6, 0x05,
|
| 248 |
|
|
0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x07, 0x00,
|
| 249 |
|
|
0xC1, 0x09, 0xE6, 0x05, 0xC1, 0xD1, 0x9F, 0xAF,
|
| 250 |
|
|
0x28, 0x05, 0xC0, 0x07, 0x0B, 0x00, 0xC1, 0x09,
|
| 251 |
|
|
0xE8, 0x05, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07,
|
| 252 |
|
|
0x0C, 0x00, 0xC1, 0x09, 0xE8, 0x05, 0xC1, 0xD1,
|
| 253 |
|
|
0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x0D, 0x00,
|
| 254 |
|
|
0xC1, 0x07, 0x09, 0x00, 0x9F, 0xAF, 0x28, 0x05,
|
| 255 |
|
|
0xC0, 0x07, 0x03, 0x00, 0xC1, 0x07, 0x32, 0x00,
|
| 256 |
|
|
0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x0F, 0x00,
|
| 257 |
|
|
0xC1, 0x07, 0x00, 0x00, 0x9F, 0xAF, 0x28, 0x05,
|
| 258 |
|
|
0x97, 0xCF, 0xE7, 0x67, 0xFF, 0xD9, 0x24, 0xC0,
|
| 259 |
|
|
0xC8, 0x07, 0x0A, 0x00, 0x40, 0x00, 0xC0, 0x67,
|
| 260 |
|
|
0x00, 0x02, 0x27, 0x80, 0x24, 0xC0, 0xE7, 0x87,
|
| 261 |
|
|
0x00, 0x04, 0x24, 0xC0, 0xE7, 0x67, 0xFF, 0xF9,
|
| 262 |
|
|
0x24, 0xC0, 0x01, 0xD2, 0x08, 0xDA, 0x72, 0xC1,
|
| 263 |
|
|
0xE7, 0x87, 0x00, 0x20, 0x24, 0xC0, 0x97, 0xCF,
|
| 264 |
|
|
0x27, 0x00, 0x1E, 0xC0, 0xE7, 0x87, 0xFF, 0x00,
|
| 265 |
|
|
0x22, 0xC0, 0xE7, 0x67, 0x7F, 0xFF, 0x24, 0xC0,
|
| 266 |
|
|
0xE7, 0x87, 0x80, 0x00, 0x24, 0xC0, 0xE7, 0x87,
|
| 267 |
|
|
0x80, 0x00, 0x24, 0xC0, 0x97, 0xCF, 0x9F, 0xAF,
|
| 268 |
|
|
0x0A, 0x05, 0x67, 0x00, 0x1E, 0xC0, 0xE7, 0x67,
|
| 269 |
|
|
0xBF, 0xFF, 0x24, 0xC0, 0xE7, 0x87, 0x40, 0x00,
|
| 270 |
|
|
0x24, 0xC0, 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0,
|
| 271 |
|
|
0x97, 0xCF, 0x9F, 0xAF, 0x0A, 0x05, 0xE7, 0x67,
|
| 272 |
|
|
0x00, 0xFF, 0x22, 0xC0, 0xE7, 0x67, 0xFF, 0xFE,
|
| 273 |
|
|
0x24, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0,
|
| 274 |
|
|
0xC1, 0x09, 0x20, 0xC0, 0xE7, 0x87, 0x00, 0x01,
|
| 275 |
|
|
0x24, 0xC0, 0x97, 0xCF, 0xC0, 0x07, 0x40, 0x00,
|
| 276 |
|
|
0xC8, 0x09, 0xFC, 0x05, 0xE7, 0x67, 0x00, 0xFF,
|
| 277 |
|
|
0x22, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0,
|
| 278 |
|
|
0xE7, 0x67, 0xBF, 0xFF, 0x24, 0xC0, 0xE7, 0x67,
|
| 279 |
|
|
0xBF, 0xFF, 0x24, 0xC0, 0x00, 0xDA, 0xE8, 0x09,
|
| 280 |
|
|
0x20, 0xC0, 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0,
|
| 281 |
|
|
0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0, 0x00, 0xDA,
|
| 282 |
|
|
0xE8, 0x09, 0x20, 0xC0, 0x6D, 0xC1, 0xE7, 0x87,
|
| 283 |
|
|
0x00, 0x01, 0x24, 0xC0, 0x97, 0xCF, 0xE7, 0x07,
|
| 284 |
|
|
0x32, 0x00, 0x12, 0xC0, 0xE7, 0x77, 0x00, 0x80,
|
| 285 |
|
|
0x12, 0xC0, 0x7C, 0xC0, 0x97, 0xCF, 0xE7, 0x07,
|
| 286 |
|
|
0x20, 0x4E, 0x12, 0xC0, 0xE7, 0x77, 0x00, 0x80,
|
| 287 |
|
|
0x12, 0xC0, 0x7C, 0xC0, 0x97, 0xCF, 0x09, 0x02,
|
| 288 |
|
|
0x19, 0x00, 0x01, 0x01, 0x00, 0x80, 0x96, 0x09,
|
| 289 |
|
|
0x04, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
|
| 290 |
|
|
0x07, 0x05, 0x81, 0x02, 0x40, 0x00, 0x00, 0x00,
|
| 291 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 292 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 293 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 294 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 295 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 296 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 297 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 298 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 299 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 300 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 301 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 302 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 303 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 304 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 305 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 306 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 307 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 308 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 309 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 310 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 311 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 312 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
| 313 |
|
|
};
|
| 314 |
|
|
|
| 315 |
|
|
static unsigned char setup5[] = {
|
| 316 |
|
|
0xB6, 0xC3, 0x2F, 0x01, 0x03, 0x64, 0x0E, 0x00,
|
| 317 |
|
|
0x14, 0x00, 0x1A, 0x00, 0x20, 0x00, 0x26, 0x00,
|
| 318 |
|
|
0x4A, 0x00, 0x64, 0x00, 0x6A, 0x00, 0x92, 0x00,
|
| 319 |
|
|
0x9A, 0x00, 0xA0, 0x00, 0xB2, 0x00, 0xB8, 0x00,
|
| 320 |
|
|
0xBE, 0x00, 0xC2, 0x00, 0xC8, 0x00, 0xCE, 0x00,
|
| 321 |
|
|
0xDC, 0x00, 0xDA, 0x00, 0xE2, 0x00, 0xE0, 0x00,
|
| 322 |
|
|
0xE8, 0x00, 0xE6, 0x00, 0xEE, 0x00, 0xEC, 0x00,
|
| 323 |
|
|
0xF2, 0x00, 0xF8, 0x00, 0x02, 0x01, 0x0A, 0x01,
|
| 324 |
|
|
0x0E, 0x01, 0x12, 0x01, 0x1E, 0x01, 0x22, 0x01,
|
| 325 |
|
|
0x28, 0x01, 0x2C, 0x01, 0x32, 0x01, 0x36, 0x01,
|
| 326 |
|
|
0x44, 0x01, 0x50, 0x01, 0x5E, 0x01, 0x72, 0x01,
|
| 327 |
|
|
0x76, 0x01, 0x7A, 0x01, 0x80, 0x01, 0x88, 0x01,
|
| 328 |
|
|
0x8C, 0x01, 0x94, 0x01, 0x9C, 0x01, 0xA0, 0x01,
|
| 329 |
|
|
0xA4, 0x01, 0xAA, 0x01, 0xB0, 0x01, 0xB4, 0x01,
|
| 330 |
|
|
0xBA, 0x01, 0xD0, 0x01, 0xDA, 0x01, 0xF6, 0x01,
|
| 331 |
|
|
0xFA, 0x01, 0x02, 0x02, 0x34, 0x02, 0x3C, 0x02,
|
| 332 |
|
|
0x44, 0x02, 0x4A, 0x02, 0x50, 0x02, 0x56, 0x02,
|
| 333 |
|
|
0x74, 0x02, 0x78, 0x02, 0x7E, 0x02, 0x84, 0x02,
|
| 334 |
|
|
0x8A, 0x02, 0x88, 0x02, 0x90, 0x02, 0x8E, 0x02,
|
| 335 |
|
|
0x94, 0x02, 0xA2, 0x02, 0xA8, 0x02, 0xAE, 0x02,
|
| 336 |
|
|
0xB4, 0x02, 0xBA, 0x02, 0xB8, 0x02, 0xC0, 0x02,
|
| 337 |
|
|
0xBE, 0x02, 0xC4, 0x02, 0xD0, 0x02, 0xD4, 0x02,
|
| 338 |
|
|
0xE0, 0x02, 0xE6, 0x02, 0xEE, 0x02, 0xF8, 0x02,
|
| 339 |
|
|
0xFC, 0x02, 0x06, 0x03, 0x1E, 0x03, 0x24, 0x03,
|
| 340 |
|
|
0x28, 0x03, 0x30, 0x03, 0x2E, 0x03, 0x3C, 0x03,
|
| 341 |
|
|
0x4A, 0x03, 0x4E, 0x03, 0x54, 0x03, 0x58, 0x03,
|
| 342 |
|
|
0x5E, 0x03, 0x66, 0x03, 0x6E, 0x03, 0x7A, 0x03,
|
| 343 |
|
|
0x86, 0x03, 0x8E, 0x03, 0x96, 0x03, 0xB2, 0x03,
|
| 344 |
|
|
0xB8, 0x03, 0xC6, 0x03, 0xCC, 0x03, 0xD4, 0x03,
|
| 345 |
|
|
0xDA, 0x03, 0xE8, 0x03, 0xF4, 0x03, 0xFC, 0x03,
|
| 346 |
|
|
0x04, 0x04, 0x20, 0x04, 0x2A, 0x04, 0x32, 0x04,
|
| 347 |
|
|
0x36, 0x04, 0x3E, 0x04, 0x44, 0x04, 0x42, 0x04,
|
| 348 |
|
|
0x48, 0x04, 0x4E, 0x04, 0x4C, 0x04, 0x54, 0x04,
|
| 349 |
|
|
0x52, 0x04, 0x5A, 0x04, 0x5E, 0x04, 0x62, 0x04,
|
| 350 |
|
|
0x68, 0x04, 0x74, 0x04, 0x7C, 0x04, 0x80, 0x04,
|
| 351 |
|
|
0x88, 0x04, 0x8C, 0x04, 0x94, 0x04, 0x9A, 0x04,
|
| 352 |
|
|
0xA2, 0x04, 0xA6, 0x04, 0xAE, 0x04, 0xB4, 0x04,
|
| 353 |
|
|
0xC0, 0x04, 0xCC, 0x04, 0xD8, 0x04, 0x2A, 0x05,
|
| 354 |
|
|
0x46, 0x05, 0x6C, 0x05, 0x00, 0x00
|
| 355 |
|
|
};
|
| 356 |
|
|
|
| 357 |
|
|
struct vicam_camera {
|
| 358 |
|
|
u16 shutter_speed; // capture shutter speed
|
| 359 |
|
|
u16 gain; // capture gain
|
| 360 |
|
|
|
| 361 |
|
|
u8 *raw_image; // raw data captured from the camera
|
| 362 |
|
|
u8 *framebuf; // processed data in RGB24 format
|
| 363 |
|
|
|
| 364 |
|
|
struct video_device vdev; // v4l video device
|
| 365 |
|
|
struct usb_device *udev; // usb device
|
| 366 |
|
|
|
| 367 |
|
|
struct semaphore busy_lock; // guard against SMP multithreading
|
| 368 |
|
|
|
| 369 |
|
|
bool is_initialized;
|
| 370 |
|
|
bool is_removed;
|
| 371 |
|
|
bool is_opened;
|
| 372 |
|
|
u8 bulkEndpoint;
|
| 373 |
|
|
bool needsDummyRead;
|
| 374 |
|
|
|
| 375 |
|
|
u32 framebuf_size; // # of valid bytes in framebuf
|
| 376 |
|
|
u32 framebuf_read_start; // position in frame buf that a read is happening at.
|
| 377 |
|
|
|
| 378 |
|
|
#ifdef CONFIG_PROC_FS
|
| 379 |
|
|
struct proc_dir_entry *proc_entry;
|
| 380 |
|
|
#endif
|
| 381 |
|
|
|
| 382 |
|
|
};
|
| 383 |
|
|
|
| 384 |
|
|
static void *vicam_probe(struct usb_device *dev, unsigned int ifnum,
|
| 385 |
|
|
const struct usb_device_id *id);
|
| 386 |
|
|
static void vicam_disconnect(struct usb_device *dev, void *ptr);
|
| 387 |
|
|
static void read_frame(struct vicam_camera *cam, int framenum);
|
| 388 |
|
|
static void vicam_purge(struct vicam_camera *cam);
|
| 389 |
|
|
|
| 390 |
|
|
static int
|
| 391 |
|
|
send_control_msg(struct usb_device *udev, u8 request, u16 value, u16 index,
|
| 392 |
|
|
unsigned char *cp, u16 size)
|
| 393 |
|
|
{
|
| 394 |
|
|
int status;
|
| 395 |
|
|
|
| 396 |
|
|
// for reasons not yet known to me, you can't send USB control messages
|
| 397 |
|
|
// with data in the module (if you are compiled as a module). Whatever
|
| 398 |
|
|
// the reason, copying it to memory allocated as kernel memory then
|
| 399 |
|
|
// doing the usb control message fixes the problem.
|
| 400 |
|
|
|
| 401 |
|
|
unsigned char *transfer_buffer = kmalloc(size, GFP_KERNEL);
|
| 402 |
|
|
memcpy(transfer_buffer, cp, size);
|
| 403 |
|
|
|
| 404 |
|
|
status = usb_control_msg(udev,
|
| 405 |
|
|
usb_sndctrlpipe(udev, 0),
|
| 406 |
|
|
request,
|
| 407 |
|
|
USB_DIR_OUT | USB_TYPE_VENDOR |
|
| 408 |
|
|
USB_RECIP_DEVICE, value, index,
|
| 409 |
|
|
transfer_buffer, size, HZ);
|
| 410 |
|
|
|
| 411 |
|
|
kfree(transfer_buffer);
|
| 412 |
|
|
|
| 413 |
|
|
if (status < 0) {
|
| 414 |
|
|
printk(KERN_INFO "Failed sending control message, error %d.\n",
|
| 415 |
|
|
status);
|
| 416 |
|
|
}
|
| 417 |
|
|
|
| 418 |
|
|
return status;
|
| 419 |
|
|
}
|
| 420 |
|
|
|
| 421 |
|
|
static int
|
| 422 |
|
|
initialize_camera(struct vicam_camera *cam)
|
| 423 |
|
|
{
|
| 424 |
|
|
struct usb_device *udev = cam->udev;
|
| 425 |
|
|
int status;
|
| 426 |
|
|
|
| 427 |
|
|
if ((status =
|
| 428 |
|
|
send_control_msg(udev, 0xff, 0, 0, setup1, sizeof (setup1))) < 0)
|
| 429 |
|
|
return status;
|
| 430 |
|
|
if ((status =
|
| 431 |
|
|
send_control_msg(udev, 0xff, 0, 0, setup2, sizeof (setup2))) < 0)
|
| 432 |
|
|
return status;
|
| 433 |
|
|
if ((status =
|
| 434 |
|
|
send_control_msg(udev, 0xff, 0, 0, setup3, sizeof (setup3))) < 0)
|
| 435 |
|
|
return status;
|
| 436 |
|
|
if ((status =
|
| 437 |
|
|
send_control_msg(udev, 0xff, 0, 0, setup4, sizeof (setup4))) < 0)
|
| 438 |
|
|
return status;
|
| 439 |
|
|
if ((status =
|
| 440 |
|
|
send_control_msg(udev, 0xff, 0, 0, setup5, sizeof (setup5))) < 0)
|
| 441 |
|
|
return status;
|
| 442 |
|
|
if ((status =
|
| 443 |
|
|
send_control_msg(udev, 0xff, 0, 0, setup3, sizeof (setup3))) < 0)
|
| 444 |
|
|
return status;
|
| 445 |
|
|
|
| 446 |
|
|
return 0;
|
| 447 |
|
|
}
|
| 448 |
|
|
|
| 449 |
|
|
static int
|
| 450 |
|
|
set_camera_power(struct vicam_camera *cam, int state)
|
| 451 |
|
|
{
|
| 452 |
|
|
int status;
|
| 453 |
|
|
|
| 454 |
|
|
if ((status = send_control_msg(cam->udev, 0x50, state, 0, NULL, 0)) < 0)
|
| 455 |
|
|
return status;
|
| 456 |
|
|
|
| 457 |
|
|
if (state) {
|
| 458 |
|
|
send_control_msg(cam->udev, 0x55, 1, 0, NULL, 0);
|
| 459 |
|
|
}
|
| 460 |
|
|
|
| 461 |
|
|
return 0;
|
| 462 |
|
|
}
|
| 463 |
|
|
|
| 464 |
|
|
static int
|
| 465 |
|
|
vicam_ioctl(struct video_device *dev, unsigned int ioctlnr, void *arg)
|
| 466 |
|
|
{
|
| 467 |
|
|
struct vicam_camera *cam = dev->priv;
|
| 468 |
|
|
int retval = 0;
|
| 469 |
|
|
|
| 470 |
|
|
if (!cam)
|
| 471 |
|
|
return -ENODEV;
|
| 472 |
|
|
|
| 473 |
|
|
/* make this _really_ smp-safe */
|
| 474 |
|
|
if (down_interruptible(&cam->busy_lock))
|
| 475 |
|
|
return -EINTR;
|
| 476 |
|
|
|
| 477 |
|
|
switch (ioctlnr) {
|
| 478 |
|
|
/* query capabilites */
|
| 479 |
|
|
case VIDIOCGCAP:
|
| 480 |
|
|
{
|
| 481 |
|
|
struct video_capability b;
|
| 482 |
|
|
|
| 483 |
|
|
DBG("VIDIOCGCAP\n");
|
| 484 |
|
|
strcpy(b.name, "ViCam-based Camera");
|
| 485 |
|
|
b.type = VID_TYPE_CAPTURE;
|
| 486 |
|
|
b.channels = 1;
|
| 487 |
|
|
b.audios = 0;
|
| 488 |
|
|
b.maxwidth = 320; /* VIDEOSIZE_CIF */
|
| 489 |
|
|
b.maxheight = 240;
|
| 490 |
|
|
b.minwidth = 320; /* VIDEOSIZE_48_48 */
|
| 491 |
|
|
b.minheight = 240;
|
| 492 |
|
|
|
| 493 |
|
|
if (copy_to_user(arg, &b, sizeof (b)))
|
| 494 |
|
|
retval = -EFAULT;
|
| 495 |
|
|
|
| 496 |
|
|
break;
|
| 497 |
|
|
}
|
| 498 |
|
|
/* get/set video source - we are a camera and nothing else */
|
| 499 |
|
|
case VIDIOCGCHAN:
|
| 500 |
|
|
{
|
| 501 |
|
|
struct video_channel v;
|
| 502 |
|
|
|
| 503 |
|
|
DBG("VIDIOCGCHAN\n");
|
| 504 |
|
|
if (copy_from_user(&v, arg, sizeof (v))) {
|
| 505 |
|
|
retval = -EFAULT;
|
| 506 |
|
|
break;
|
| 507 |
|
|
}
|
| 508 |
|
|
if (v.channel != 0) {
|
| 509 |
|
|
retval = -EINVAL;
|
| 510 |
|
|
break;
|
| 511 |
|
|
}
|
| 512 |
|
|
|
| 513 |
|
|
v.channel = 0;
|
| 514 |
|
|
strcpy(v.name, "Camera");
|
| 515 |
|
|
v.tuners = 0;
|
| 516 |
|
|
v.flags = 0;
|
| 517 |
|
|
v.type = VIDEO_TYPE_CAMERA;
|
| 518 |
|
|
v.norm = 0;
|
| 519 |
|
|
|
| 520 |
|
|
if (copy_to_user(arg, &v, sizeof (v)))
|
| 521 |
|
|
retval = -EFAULT;
|
| 522 |
|
|
break;
|
| 523 |
|
|
}
|
| 524 |
|
|
|
| 525 |
|
|
case VIDIOCSCHAN:
|
| 526 |
|
|
{
|
| 527 |
|
|
int v;
|
| 528 |
|
|
|
| 529 |
|
|
if (copy_from_user(&v, arg, sizeof (v)))
|
| 530 |
|
|
retval = -EFAULT;
|
| 531 |
|
|
DBG("VIDIOCSCHAN %d\n", v);
|
| 532 |
|
|
|
| 533 |
|
|
if (retval == 0 && v != 0)
|
| 534 |
|
|
retval = -EINVAL;
|
| 535 |
|
|
|
| 536 |
|
|
break;
|
| 537 |
|
|
}
|
| 538 |
|
|
|
| 539 |
|
|
/* image properties */
|
| 540 |
|
|
case VIDIOCGPICT:
|
| 541 |
|
|
{
|
| 542 |
|
|
struct video_picture vp;
|
| 543 |
|
|
DBG("VIDIOCGPICT\n");
|
| 544 |
|
|
memset(&vp, 0, sizeof (struct video_picture));
|
| 545 |
|
|
vp.brightness = cam->gain << 8;
|
| 546 |
|
|
vp.depth = 24;
|
| 547 |
|
|
vp.palette = VIDEO_PALETTE_RGB24;
|
| 548 |
|
|
if (copy_to_user
|
| 549 |
|
|
(arg, &vp, sizeof (struct video_picture)))
|
| 550 |
|
|
retval = -EFAULT;
|
| 551 |
|
|
break;
|
| 552 |
|
|
}
|
| 553 |
|
|
|
| 554 |
|
|
case VIDIOCSPICT:
|
| 555 |
|
|
{
|
| 556 |
|
|
struct video_picture vp;
|
| 557 |
|
|
|
| 558 |
|
|
if(copy_from_user(&vp, (struct video_picture *) arg,
|
| 559 |
|
|
sizeof(struct video_picture)))
|
| 560 |
|
|
retval = -EFAULT;
|
| 561 |
|
|
|
| 562 |
|
|
else
|
| 563 |
|
|
{
|
| 564 |
|
|
DBG("VIDIOCSPICT depth = %d, pal = %d\n", vp.depth,
|
| 565 |
|
|
vp.palette);
|
| 566 |
|
|
|
| 567 |
|
|
cam->gain = vp.brightness >> 8;
|
| 568 |
|
|
|
| 569 |
|
|
if (vp.depth != 24
|
| 570 |
|
|
|| vp.palette != VIDEO_PALETTE_RGB24)
|
| 571 |
|
|
retval = -EINVAL;
|
| 572 |
|
|
}
|
| 573 |
|
|
|
| 574 |
|
|
break;
|
| 575 |
|
|
}
|
| 576 |
|
|
|
| 577 |
|
|
/* get/set capture window */
|
| 578 |
|
|
case VIDIOCGWIN:
|
| 579 |
|
|
{
|
| 580 |
|
|
struct video_window vw;
|
| 581 |
|
|
vw.x = 0;
|
| 582 |
|
|
vw.y = 0;
|
| 583 |
|
|
vw.width = 320;
|
| 584 |
|
|
vw.height = 240;
|
| 585 |
|
|
vw.chromakey = 0;
|
| 586 |
|
|
vw.flags = 0;
|
| 587 |
|
|
vw.clips = NULL;
|
| 588 |
|
|
vw.clipcount = 0;
|
| 589 |
|
|
|
| 590 |
|
|
DBG("VIDIOCGWIN\n");
|
| 591 |
|
|
|
| 592 |
|
|
if (copy_to_user
|
| 593 |
|
|
((void *) arg, (void *) &vw, sizeof (vw)))
|
| 594 |
|
|
retval = -EFAULT;
|
| 595 |
|
|
|
| 596 |
|
|
// I'm not sure what the deal with a capture window is, it is very poorly described
|
| 597 |
|
|
// in the doc. So I won't support it now.
|
| 598 |
|
|
break;
|
| 599 |
|
|
}
|
| 600 |
|
|
|
| 601 |
|
|
case VIDIOCSWIN:
|
| 602 |
|
|
{
|
| 603 |
|
|
|
| 604 |
|
|
struct video_window vw;
|
| 605 |
|
|
|
| 606 |
|
|
if (copy_from_user(&vw, arg, sizeof(vw)))
|
| 607 |
|
|
{
|
| 608 |
|
|
retval = -EFAULT;
|
| 609 |
|
|
break;
|
| 610 |
|
|
}
|
| 611 |
|
|
|
| 612 |
|
|
DBG("VIDIOCSWIN %d x %d\n", vw->width, vw->height);
|
| 613 |
|
|
|
| 614 |
|
|
if ( vw.width != 320 || vw.height != 240 )
|
| 615 |
|
|
retval = -EFAULT;
|
| 616 |
|
|
|
| 617 |
|
|
break;
|
| 618 |
|
|
}
|
| 619 |
|
|
|
| 620 |
|
|
/* mmap interface */
|
| 621 |
|
|
case VIDIOCGMBUF:
|
| 622 |
|
|
{
|
| 623 |
|
|
struct video_mbuf vm;
|
| 624 |
|
|
int i;
|
| 625 |
|
|
|
| 626 |
|
|
DBG("VIDIOCGMBUF\n");
|
| 627 |
|
|
memset(&vm, 0, sizeof (vm));
|
| 628 |
|
|
vm.size =
|
| 629 |
|
|
VICAM_MAX_FRAME_SIZE * VICAM_FRAMES;
|
| 630 |
|
|
vm.frames = VICAM_FRAMES;
|
| 631 |
|
|
for (i = 0; i < VICAM_FRAMES; i++)
|
| 632 |
|
|
vm.offsets[i] = VICAM_MAX_FRAME_SIZE * i;
|
| 633 |
|
|
|
| 634 |
|
|
if (copy_to_user
|
| 635 |
|
|
((void *) arg, (void *) &vm, sizeof (vm)))
|
| 636 |
|
|
retval = -EFAULT;
|
| 637 |
|
|
|
| 638 |
|
|
break;
|
| 639 |
|
|
}
|
| 640 |
|
|
|
| 641 |
|
|
case VIDIOCMCAPTURE:
|
| 642 |
|
|
{
|
| 643 |
|
|
struct video_mmap vm;
|
| 644 |
|
|
// int video_size;
|
| 645 |
|
|
|
| 646 |
|
|
if (copy_from_user
|
| 647 |
|
|
((void *) &vm, (void *) arg, sizeof (vm))) {
|
| 648 |
|
|
retval = -EFAULT;
|
| 649 |
|
|
break;
|
| 650 |
|
|
}
|
| 651 |
|
|
|
| 652 |
|
|
DBG("VIDIOCMCAPTURE frame=%d, height=%d, width=%d, format=%d.\n",vm.frame,vm.width,vm.height,vm.format);
|
| 653 |
|
|
|
| 654 |
|
|
if ( vm.frame >= VICAM_FRAMES || vm.format != VIDEO_PALETTE_RGB24 )
|
| 655 |
|
|
retval = -EINVAL;
|
| 656 |
|
|
|
| 657 |
|
|
// in theory right here we'd start the image capturing
|
| 658 |
|
|
// (fill in a bulk urb and submit it asynchronously)
|
| 659 |
|
|
//
|
| 660 |
|
|
// Instead we're going to do a total hack job for now and
|
| 661 |
|
|
// retrieve the frame in VIDIOCSYNC
|
| 662 |
|
|
|
| 663 |
|
|
break;
|
| 664 |
|
|
}
|
| 665 |
|
|
|
| 666 |
|
|
case VIDIOCSYNC:
|
| 667 |
|
|
{
|
| 668 |
|
|
int frame;
|
| 669 |
|
|
|
| 670 |
|
|
if (copy_from_user((void *) &frame, arg, sizeof (int))) {
|
| 671 |
|
|
retval = -EFAULT;
|
| 672 |
|
|
break;
|
| 673 |
|
|
}
|
| 674 |
|
|
DBG("VIDIOCSYNC: %d\n", frame);
|
| 675 |
|
|
|
| 676 |
|
|
read_frame(cam, frame);
|
| 677 |
|
|
|
| 678 |
|
|
break;
|
| 679 |
|
|
}
|
| 680 |
|
|
|
| 681 |
|
|
/* pointless to implement overlay with this camera */
|
| 682 |
|
|
case VIDIOCCAPTURE:
|
| 683 |
|
|
case VIDIOCGFBUF:
|
| 684 |
|
|
case VIDIOCSFBUF:
|
| 685 |
|
|
case VIDIOCKEY:
|
| 686 |
|
|
retval = -EINVAL;
|
| 687 |
|
|
break;
|
| 688 |
|
|
|
| 689 |
|
|
/* tuner interface - we have none */
|
| 690 |
|
|
case VIDIOCGTUNER:
|
| 691 |
|
|
case VIDIOCSTUNER:
|
| 692 |
|
|
case VIDIOCGFREQ:
|
| 693 |
|
|
case VIDIOCSFREQ:
|
| 694 |
|
|
retval = -EINVAL;
|
| 695 |
|
|
break;
|
| 696 |
|
|
|
| 697 |
|
|
/* audio interface - we have none */
|
| 698 |
|
|
case VIDIOCGAUDIO:
|
| 699 |
|
|
case VIDIOCSAUDIO:
|
| 700 |
|
|
retval = -EINVAL;
|
| 701 |
|
|
break;
|
| 702 |
|
|
default:
|
| 703 |
|
|
retval = -ENOIOCTLCMD;
|
| 704 |
|
|
break;
|
| 705 |
|
|
}
|
| 706 |
|
|
|
| 707 |
|
|
up(&cam->busy_lock);
|
| 708 |
|
|
return retval;
|
| 709 |
|
|
}
|
| 710 |
|
|
|
| 711 |
|
|
static int
|
| 712 |
|
|
vicam_open(struct video_device *dev, int flags)
|
| 713 |
|
|
{
|
| 714 |
|
|
struct vicam_camera *cam =
|
| 715 |
|
|
(struct vicam_camera *) dev->priv;
|
| 716 |
|
|
int intr;
|
| 717 |
|
|
DBG("open\n");
|
| 718 |
|
|
|
| 719 |
|
|
if (!cam) {
|
| 720 |
|
|
printk(KERN_ERR
|
| 721 |
|
|
"vicam video_device improperly initialized");
|
| 722 |
|
|
}
|
| 723 |
|
|
|
| 724 |
|
|
intr = down_interruptible(&cam->busy_lock);
|
| 725 |
|
|
if (intr)
|
| 726 |
|
|
return -EINTR;
|
| 727 |
|
|
|
| 728 |
|
|
if (cam->is_opened) {
|
| 729 |
|
|
printk(KERN_INFO
|
| 730 |
|
|
"vicam_open called on already opened camera");
|
| 731 |
|
|
up(&cam->busy_lock);
|
| 732 |
|
|
return -EBUSY;
|
| 733 |
|
|
}
|
| 734 |
|
|
|
| 735 |
|
|
if (!cam->raw_image) {
|
| 736 |
|
|
cam->raw_image = kmalloc(VICAM_MAX_READ_SIZE, GFP_KERNEL);
|
| 737 |
|
|
if (!cam->raw_image) {
|
| 738 |
|
|
up(&cam->busy_lock);
|
| 739 |
|
|
return -ENOMEM;
|
| 740 |
|
|
}
|
| 741 |
|
|
}
|
| 742 |
|
|
|
| 743 |
|
|
if (!cam->framebuf) {
|
| 744 |
|
|
cam->framebuf =
|
| 745 |
|
|
usbvideo_rvmalloc(VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
|
| 746 |
|
|
if (!cam->framebuf) {
|
| 747 |
|
|
kfree(cam->raw_image);
|
| 748 |
|
|
up(&cam->busy_lock);
|
| 749 |
|
|
return -ENOMEM;
|
| 750 |
|
|
}
|
| 751 |
|
|
}
|
| 752 |
|
|
// First upload firmware, then turn the camera on
|
| 753 |
|
|
|
| 754 |
|
|
if (!cam->is_initialized) {
|
| 755 |
|
|
initialize_camera(cam);
|
| 756 |
|
|
|
| 757 |
|
|
cam->is_initialized = 1;
|
| 758 |
|
|
}
|
| 759 |
|
|
|
| 760 |
|
|
set_camera_power(cam, 1);
|
| 761 |
|
|
|
| 762 |
|
|
cam->needsDummyRead = 1;
|
| 763 |
|
|
cam->is_opened = 1;
|
| 764 |
|
|
|
| 765 |
|
|
up(&cam->busy_lock);
|
| 766 |
|
|
|
| 767 |
|
|
return 0;
|
| 768 |
|
|
}
|
| 769 |
|
|
|
| 770 |
|
|
static void
|
| 771 |
|
|
vicam_close(struct video_device *dev)
|
| 772 |
|
|
{
|
| 773 |
|
|
struct vicam_camera *cam = (struct vicam_camera *) dev->priv;
|
| 774 |
|
|
DBG("close\n");
|
| 775 |
|
|
|
| 776 |
|
|
|
| 777 |
|
|
if (cam->is_removed) {
|
| 778 |
|
|
vicam_purge(cam);
|
| 779 |
|
|
} else {
|
| 780 |
|
|
set_camera_power(cam, 0);
|
| 781 |
|
|
cam->is_opened = 0;
|
| 782 |
|
|
}
|
| 783 |
|
|
}
|
| 784 |
|
|
|
| 785 |
|
|
inline int pin(int x)
|
| 786 |
|
|
{
|
| 787 |
|
|
return((x > 255) ? 255 : ((x < 0) ? 0 : x));
|
| 788 |
|
|
}
|
| 789 |
|
|
|
| 790 |
|
|
inline void writepixel(char *rgb, int Y, int Cr, int Cb)
|
| 791 |
|
|
{
|
| 792 |
|
|
Y = 1160 * (Y - 16);
|
| 793 |
|
|
|
| 794 |
|
|
rgb[2] = pin( ( ( Y + ( 1594 * Cr ) ) + 500 ) / 1300 );
|
| 795 |
|
|
rgb[1] = pin( ( ( Y - ( 392 * Cb ) - ( 813 * Cr ) ) + 500 ) / 1000 );
|
| 796 |
|
|
rgb[0] = pin( ( ( Y + ( 2017 * Cb ) ) + 500 ) / 900 );
|
| 797 |
|
|
}
|
| 798 |
|
|
|
| 799 |
|
|
#define DATA_HEADER_SIZE 64
|
| 800 |
|
|
|
| 801 |
|
|
// --------------------------------------------------------------------------------
|
| 802 |
|
|
// vicam_decode_color - Convert from Vicam Y-Cr-Cb to RGB
|
| 803 |
|
|
//
|
| 804 |
|
|
// Copyright (C) 2002 Monroe Williams (monroe@pobox.com)
|
| 805 |
|
|
// --------------------------------------------------------------------------------
|
| 806 |
|
|
|
| 807 |
|
|
void vicam_decode_color( char *data, char *rgb)
|
| 808 |
|
|
{
|
| 809 |
|
|
int x,y;
|
| 810 |
|
|
int Cr, Cb;
|
| 811 |
|
|
int sign;
|
| 812 |
|
|
int prevX, nextX, prevY, nextY;
|
| 813 |
|
|
int skip;
|
| 814 |
|
|
unsigned char *src;
|
| 815 |
|
|
unsigned char *dst;
|
| 816 |
|
|
|
| 817 |
|
|
prevY = 512;
|
| 818 |
|
|
nextY = 512;
|
| 819 |
|
|
|
| 820 |
|
|
src = data + DATA_HEADER_SIZE;
|
| 821 |
|
|
dst = rgb;
|
| 822 |
|
|
|
| 823 |
|
|
for(y = 1; y < 241; y += 2)
|
| 824 |
|
|
{
|
| 825 |
|
|
// even line
|
| 826 |
|
|
sign = 1;
|
| 827 |
|
|
prevX = 1;
|
| 828 |
|
|
nextX = 1;
|
| 829 |
|
|
|
| 830 |
|
|
skip = 0;
|
| 831 |
|
|
|
| 832 |
|
|
dst = rgb + (y-1)*320*3;
|
| 833 |
|
|
|
| 834 |
|
|
for(x = 0; x < 512; x++)
|
| 835 |
|
|
{
|
| 836 |
|
|
if(x == 512-1)
|
| 837 |
|
|
nextX = -1;
|
| 838 |
|
|
|
| 839 |
|
|
Cr = sign * ((src[prevX] - src[0]) + (src[nextX] - src[0])) >> 1;
|
| 840 |
|
|
Cb = sign * ((src[prevY] - src[prevX + prevY]) + (src[prevY] - src[nextX + prevY]) + (src[nextY] - src[prevX + nextY]) + (src[nextY] - src[nextX + nextY])) >> 2;
|
| 841 |
|
|
|
| 842 |
|
|
writepixel(
|
| 843 |
|
|
dst + ((x*5)>>3)*3,
|
| 844 |
|
|
src[0] + (sign * (Cr >> 1)),
|
| 845 |
|
|
Cr,
|
| 846 |
|
|
Cb);
|
| 847 |
|
|
|
| 848 |
|
|
src++;
|
| 849 |
|
|
sign *= -1;
|
| 850 |
|
|
prevX = -1;
|
| 851 |
|
|
}
|
| 852 |
|
|
|
| 853 |
|
|
prevY = -512;
|
| 854 |
|
|
|
| 855 |
|
|
if(y == (242 - 2))
|
| 856 |
|
|
nextY = -512;
|
| 857 |
|
|
|
| 858 |
|
|
// odd line
|
| 859 |
|
|
sign = 1;
|
| 860 |
|
|
prevX = 1;
|
| 861 |
|
|
nextX = 1;
|
| 862 |
|
|
|
| 863 |
|
|
skip = 0;
|
| 864 |
|
|
|
| 865 |
|
|
dst = rgb + (y)*320*3;
|
| 866 |
|
|
|
| 867 |
|
|
for(x = 0; x < 512; x++)
|
| 868 |
|
|
{
|
| 869 |
|
|
if(x == 512-1)
|
| 870 |
|
|
nextX = -1;
|
| 871 |
|
|
|
| 872 |
|
|
Cr = sign * ((src[prevX + prevY] - src[prevY]) + (src[nextX + prevY] - src[prevY]) + (src[prevX + nextY] - src[nextY]) + (src[nextX + nextY] - src[nextY])) >> 2;
|
| 873 |
|
|
Cb = sign * ((src[0] - src[prevX]) + (src[0] - src[nextX])) >> 1;
|
| 874 |
|
|
|
| 875 |
|
|
writepixel(
|
| 876 |
|
|
dst + ((x * 5)>>3)*3,
|
| 877 |
|
|
src[0] - (sign * (Cb >> 1)),
|
| 878 |
|
|
Cr,
|
| 879 |
|
|
Cb);
|
| 880 |
|
|
|
| 881 |
|
|
src++;
|
| 882 |
|
|
sign *= -1;
|
| 883 |
|
|
prevX = -1;
|
| 884 |
|
|
}
|
| 885 |
|
|
}
|
| 886 |
|
|
}
|
| 887 |
|
|
|
| 888 |
|
|
static void
|
| 889 |
|
|
read_frame(struct vicam_camera *cam, int framenum)
|
| 890 |
|
|
{
|
| 891 |
|
|
unsigned char request[16];
|
| 892 |
|
|
int realShutter;
|
| 893 |
|
|
int n;
|
| 894 |
|
|
int actual_length;
|
| 895 |
|
|
|
| 896 |
|
|
memset(request, 0, 16);
|
| 897 |
|
|
request[0] = cam->gain; // 0 = 0% gain, FF = 100% gain
|
| 898 |
|
|
|
| 899 |
|
|
request[1] = 0; // 512x242 capture
|
| 900 |
|
|
|
| 901 |
|
|
request[2] = 0x90; // the function of these two bytes
|
| 902 |
|
|
request[3] = 0x07; // is not yet understood
|
| 903 |
|
|
|
| 904 |
|
|
if (cam->shutter_speed > 60) {
|
| 905 |
|
|
// Short exposure
|
| 906 |
|
|
realShutter =
|
| 907 |
|
|
((-15631900 / cam->shutter_speed) + 260533) / 1000;
|
| 908 |
|
|
request[4] = realShutter & 0xFF;
|
| 909 |
|
|
request[5] = (realShutter >> 8) & 0xFF;
|
| 910 |
|
|
request[6] = 0x03;
|
| 911 |
|
|
request[7] = 0x01;
|
| 912 |
|
|
} else {
|
| 913 |
|
|
// Long exposure
|
| 914 |
|
|
realShutter = 15600 / cam->shutter_speed - 1;
|
| 915 |
|
|
request[4] = 0;
|
| 916 |
|
|
request[5] = 0;
|
| 917 |
|
|
request[6] = realShutter & 0xFF;
|
| 918 |
|
|
request[7] = realShutter >> 8;
|
| 919 |
|
|
}
|
| 920 |
|
|
|
| 921 |
|
|
// Per John Markus Bjørndalen, byte at index 8 causes problems if it isn't 0
|
| 922 |
|
|
request[8] = 0;
|
| 923 |
|
|
// bytes 9-15 do not seem to affect exposure or image quality
|
| 924 |
|
|
|
| 925 |
|
|
n = send_control_msg(cam->udev, 0x51, 0x80, 0, request, 16);
|
| 926 |
|
|
|
| 927 |
|
|
if (n < 0) {
|
| 928 |
|
|
printk(KERN_ERR
|
| 929 |
|
|
" Problem sending frame capture control message");
|
| 930 |
|
|
return;
|
| 931 |
|
|
}
|
| 932 |
|
|
|
| 933 |
|
|
n = usb_bulk_msg(cam->udev,
|
| 934 |
|
|
usb_rcvbulkpipe(cam->udev, cam->bulkEndpoint),
|
| 935 |
|
|
cam->raw_image,
|
| 936 |
|
|
512 * 242 + 128, &actual_length, 500);
|
| 937 |
|
|
|
| 938 |
|
|
if (n < 0) {
|
| 939 |
|
|
printk(KERN_ERR "Problem during bulk read of frame data: %d\n",
|
| 940 |
|
|
n);
|
| 941 |
|
|
}
|
| 942 |
|
|
|
| 943 |
|
|
vicam_decode_color(cam->raw_image,
|
| 944 |
|
|
cam->framebuf +
|
| 945 |
|
|
framenum * VICAM_MAX_FRAME_SIZE );
|
| 946 |
|
|
|
| 947 |
|
|
cam->framebuf_size =
|
| 948 |
|
|
320 * 240 * VICAM_BYTES_PER_PIXEL;
|
| 949 |
|
|
cam->framebuf_read_start = 0;
|
| 950 |
|
|
|
| 951 |
|
|
return;
|
| 952 |
|
|
|
| 953 |
|
|
}
|
| 954 |
|
|
|
| 955 |
|
|
static long
|
| 956 |
|
|
vicam_read(struct video_device *dev, char *buf,
|
| 957 |
|
|
unsigned long count, int noblock)
|
| 958 |
|
|
{
|
| 959 |
|
|
struct vicam_camera *cam = dev->priv;
|
| 960 |
|
|
int intr;
|
| 961 |
|
|
DBG("read %d bytes.\n", (int) count);
|
| 962 |
|
|
|
| 963 |
|
|
if (!buf)
|
| 964 |
|
|
return -EINVAL;
|
| 965 |
|
|
|
| 966 |
|
|
if (!count)
|
| 967 |
|
|
return -EINVAL;
|
| 968 |
|
|
|
| 969 |
|
|
// This is some code that will hopefully allow us to do shell copies from
|
| 970 |
|
|
// the /dev/videoX to a file and have it actually work.
|
| 971 |
|
|
if (cam->framebuf_size != 0) {
|
| 972 |
|
|
if (cam->framebuf_read_start == cam->framebuf_size) {
|
| 973 |
|
|
cam->framebuf_size = cam->framebuf_read_start = 0;
|
| 974 |
|
|
return 0;
|
| 975 |
|
|
} else {
|
| 976 |
|
|
if (cam->framebuf_read_start + count <=
|
| 977 |
|
|
cam->framebuf_size) {
|
| 978 |
|
|
// count does not exceed available bytes
|
| 979 |
|
|
if (copy_to_user(buf,
|
| 980 |
|
|
(cam->framebuf) +
|
| 981 |
|
|
cam->framebuf_read_start, count))
|
| 982 |
|
|
return -EFAULT;
|
| 983 |
|
|
cam->framebuf_read_start += count;
|
| 984 |
|
|
return count;
|
| 985 |
|
|
} else {
|
| 986 |
|
|
count =
|
| 987 |
|
|
cam->framebuf_size -
|
| 988 |
|
|
cam->framebuf_read_start;
|
| 989 |
|
|
if (copy_to_user(buf,
|
| 990 |
|
|
(cam->framebuf) +
|
| 991 |
|
|
cam->framebuf_read_start, count))
|
| 992 |
|
|
return -EFAULT;
|
| 993 |
|
|
cam->framebuf_read_start = cam->framebuf_size;
|
| 994 |
|
|
return count;
|
| 995 |
|
|
}
|
| 996 |
|
|
}
|
| 997 |
|
|
}
|
| 998 |
|
|
|
| 999 |
|
|
intr = down_interruptible(&cam->busy_lock);
|
| 1000 |
|
|
if (intr)
|
| 1001 |
|
|
return -EINTR;
|
| 1002 |
|
|
|
| 1003 |
|
|
if (cam->needsDummyRead) {
|
| 1004 |
|
|
read_frame(cam, 0);
|
| 1005 |
|
|
cam->needsDummyRead = 0;
|
| 1006 |
|
|
}
|
| 1007 |
|
|
// read_frame twice because the camera doesn't seem to take the shutter speed for the first one.
|
| 1008 |
|
|
|
| 1009 |
|
|
read_frame(cam, 0);
|
| 1010 |
|
|
|
| 1011 |
|
|
if (count > cam->framebuf_size)
|
| 1012 |
|
|
count = cam->framebuf_size;
|
| 1013 |
|
|
|
| 1014 |
|
|
if (copy_to_user(buf, cam->framebuf, count)) {
|
| 1015 |
|
|
up(&cam->busy_lock);
|
| 1016 |
|
|
return -EFAULT;
|
| 1017 |
|
|
}
|
| 1018 |
|
|
|
| 1019 |
|
|
if (count != cam->framebuf_size)
|
| 1020 |
|
|
cam->framebuf_read_start = count;
|
| 1021 |
|
|
else
|
| 1022 |
|
|
cam->framebuf_size = 0;
|
| 1023 |
|
|
|
| 1024 |
|
|
up(&cam->busy_lock);
|
| 1025 |
|
|
|
| 1026 |
|
|
return count;
|
| 1027 |
|
|
}
|
| 1028 |
|
|
|
| 1029 |
|
|
static int
|
| 1030 |
|
|
vicam_mmap(struct video_device *dev, const char *adr, unsigned long size)
|
| 1031 |
|
|
{
|
| 1032 |
|
|
// TODO: allocate the raw frame buffer if necessary
|
| 1033 |
|
|
unsigned long start = (unsigned long) adr;
|
| 1034 |
|
|
unsigned long page, pos;
|
| 1035 |
|
|
struct vicam_camera *cam = dev->priv;
|
| 1036 |
|
|
|
| 1037 |
|
|
if (!cam)
|
| 1038 |
|
|
return -ENODEV;
|
| 1039 |
|
|
|
| 1040 |
|
|
DBG("vicam_mmap: %ld\n", size);
|
| 1041 |
|
|
|
| 1042 |
|
|
/* We let mmap allocate as much as it wants because Linux was adding 2048 bytes
|
| 1043 |
|
|
* to the size the application requested for mmap and it was screwing apps up.
|
| 1044 |
|
|
if (size > VICAM_FRAMES*VICAM_MAX_FRAME_SIZE)
|
| 1045 |
|
|
return -EINVAL;
|
| 1046 |
|
|
*/
|
| 1047 |
|
|
|
| 1048 |
|
|
/* make this _really_ smp-safe */
|
| 1049 |
|
|
if (down_interruptible(&cam->busy_lock))
|
| 1050 |
|
|
return -EINTR;
|
| 1051 |
|
|
|
| 1052 |
|
|
if (!cam->framebuf) { /* we do lazy allocation */
|
| 1053 |
|
|
cam->framebuf =
|
| 1054 |
|
|
usbvideo_rvmalloc(VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
|
| 1055 |
|
|
if (!cam->framebuf) {
|
| 1056 |
|
|
up(&cam->busy_lock);
|
| 1057 |
|
|
return -ENOMEM;
|
| 1058 |
|
|
}
|
| 1059 |
|
|
}
|
| 1060 |
|
|
|
| 1061 |
|
|
pos = (unsigned long) (cam->framebuf);
|
| 1062 |
|
|
while (size > 0) {
|
| 1063 |
|
|
page = usbvideo_kvirt_to_pa(pos);
|
| 1064 |
|
|
if (remap_page_range(start, page, PAGE_SIZE, PAGE_SHARED)) {
|
| 1065 |
|
|
up(&cam->busy_lock);
|
| 1066 |
|
|
return -EAGAIN;
|
| 1067 |
|
|
}
|
| 1068 |
|
|
start += PAGE_SIZE;
|
| 1069 |
|
|
pos += PAGE_SIZE;
|
| 1070 |
|
|
if (size > PAGE_SIZE)
|
| 1071 |
|
|
size -= PAGE_SIZE;
|
| 1072 |
|
|
else
|
| 1073 |
|
|
size = 0;
|
| 1074 |
|
|
}
|
| 1075 |
|
|
|
| 1076 |
|
|
up(&cam->busy_lock);
|
| 1077 |
|
|
|
| 1078 |
|
|
return 0;
|
| 1079 |
|
|
}
|
| 1080 |
|
|
|
| 1081 |
|
|
#ifdef CONFIG_PROC_FS
|
| 1082 |
|
|
|
| 1083 |
|
|
static struct proc_dir_entry *vicam_proc_root = NULL;
|
| 1084 |
|
|
|
| 1085 |
|
|
static int
|
| 1086 |
|
|
vicam_read_proc(char *page, char **start, off_t off,
|
| 1087 |
|
|
int count, int *eof, void *data)
|
| 1088 |
|
|
{
|
| 1089 |
|
|
char *out = page;
|
| 1090 |
|
|
int len;
|
| 1091 |
|
|
struct vicam_camera *cam = (struct vicam_camera *) data;
|
| 1092 |
|
|
|
| 1093 |
|
|
out +=
|
| 1094 |
|
|
sprintf(out, "Vicam-based WebCam Linux Driver.\n");
|
| 1095 |
|
|
out += sprintf(out, "(c) 2002 Joe Burks (jburks@wavicle.org)\n");
|
| 1096 |
|
|
out += sprintf(out, "vicam stats:\n");
|
| 1097 |
|
|
out += sprintf(out, " Shutter Speed: 1/%d\n", cam->shutter_speed);
|
| 1098 |
|
|
out += sprintf(out, " Gain: %d\n", cam->gain);
|
| 1099 |
|
|
|
| 1100 |
|
|
len = out - page;
|
| 1101 |
|
|
len -= off;
|
| 1102 |
|
|
if (len < count) {
|
| 1103 |
|
|
*eof = 1;
|
| 1104 |
|
|
if (len <= 0)
|
| 1105 |
|
|
return 0;
|
| 1106 |
|
|
} else
|
| 1107 |
|
|
len = count;
|
| 1108 |
|
|
|
| 1109 |
|
|
*start = page + off;
|
| 1110 |
|
|
return len;
|
| 1111 |
|
|
}
|
| 1112 |
|
|
|
| 1113 |
|
|
static int
|
| 1114 |
|
|
vicam_write_proc(struct file *file, const char *buffer,
|
| 1115 |
|
|
unsigned long count, void *data)
|
| 1116 |
|
|
{
|
| 1117 |
|
|
char *in;
|
| 1118 |
|
|
char *start;
|
| 1119 |
|
|
struct vicam_camera *cam = (struct vicam_camera *) data;
|
| 1120 |
|
|
|
| 1121 |
|
|
in = kmalloc(count + 1, GFP_KERNEL);
|
| 1122 |
|
|
if (!in)
|
| 1123 |
|
|
return -ENOMEM;
|
| 1124 |
|
|
|
| 1125 |
|
|
in[count] = 0; // I'm not sure buffer is gauranteed to be null terminated
|
| 1126 |
|
|
// so I do this to make sure I have a null in there.
|
| 1127 |
|
|
|
| 1128 |
|
|
strncpy(in, buffer, count);
|
| 1129 |
|
|
|
| 1130 |
|
|
start = strstr(in, "gain=");
|
| 1131 |
|
|
if (start
|
| 1132 |
|
|
&& (start == in || *(start - 1) == ' ' || *(start - 1) == ','))
|
| 1133 |
|
|
cam->gain = simple_strtoul(start + 5, NULL, 10);
|
| 1134 |
|
|
|
| 1135 |
|
|
start = strstr(in, "shutter=");
|
| 1136 |
|
|
if (start
|
| 1137 |
|
|
&& (start == in || *(start - 1) == ' ' || *(start - 1) == ','))
|
| 1138 |
|
|
cam->shutter_speed = simple_strtoul(start + 8, NULL, 10);
|
| 1139 |
|
|
|
| 1140 |
|
|
kfree(in);
|
| 1141 |
|
|
return count;
|
| 1142 |
|
|
}
|
| 1143 |
|
|
|
| 1144 |
|
|
void
|
| 1145 |
|
|
vicam_create_proc_root(void)
|
| 1146 |
|
|
{
|
| 1147 |
|
|
vicam_proc_root = create_proc_entry("video/vicam", S_IFDIR, 0);
|
| 1148 |
|
|
|
| 1149 |
|
|
if (vicam_proc_root)
|
| 1150 |
|
|
vicam_proc_root->owner = THIS_MODULE;
|
| 1151 |
|
|
else
|
| 1152 |
|
|
printk(KERN_ERR
|
| 1153 |
|
|
"could not create /proc entry for vicam!");
|
| 1154 |
|
|
}
|
| 1155 |
|
|
|
| 1156 |
|
|
void
|
| 1157 |
|
|
vicam_destroy_proc_root(void)
|
| 1158 |
|
|
{
|
| 1159 |
|
|
if (vicam_proc_root)
|
| 1160 |
|
|
remove_proc_entry("video/vicam", 0);
|
| 1161 |
|
|
}
|
| 1162 |
|
|
|
| 1163 |
|
|
void
|
| 1164 |
|
|
vicam_create_proc_entry(void *ptr)
|
| 1165 |
|
|
{
|
| 1166 |
|
|
struct vicam_camera *cam = (struct vicam_camera *) ptr;
|
| 1167 |
|
|
|
| 1168 |
|
|
char name[7];
|
| 1169 |
|
|
struct proc_dir_entry *ent;
|
| 1170 |
|
|
|
| 1171 |
|
|
DBG(KERN_INFO "vicam: creating proc entry\n");
|
| 1172 |
|
|
|
| 1173 |
|
|
if (!vicam_proc_root || !cam) {
|
| 1174 |
|
|
printk(KERN_INFO
|
| 1175 |
|
|
"vicam: could not create proc entry, %s pointer is null.\n",
|
| 1176 |
|
|
(!cam ? "camera" : "root"));
|
| 1177 |
|
|
return;
|
| 1178 |
|
|
}
|
| 1179 |
|
|
|
| 1180 |
|
|
sprintf(name, "video%d", cam->vdev.minor);
|
| 1181 |
|
|
|
| 1182 |
|
|
ent =
|
| 1183 |
|
|
create_proc_entry(name, S_IFREG | S_IRUGO | S_IWUSR,
|
| 1184 |
|
|
vicam_proc_root);
|
| 1185 |
|
|
if (!ent)
|
| 1186 |
|
|
return;
|
| 1187 |
|
|
|
| 1188 |
|
|
ent->data = cam;
|
| 1189 |
|
|
ent->read_proc = vicam_read_proc;
|
| 1190 |
|
|
ent->write_proc = vicam_write_proc;
|
| 1191 |
|
|
ent->size = 512;
|
| 1192 |
|
|
cam->proc_entry = ent;
|
| 1193 |
|
|
}
|
| 1194 |
|
|
|
| 1195 |
|
|
void
|
| 1196 |
|
|
vicam_destroy_proc_entry(void *ptr)
|
| 1197 |
|
|
{
|
| 1198 |
|
|
struct vicam_camera *cam = (struct vicam_camera *) ptr;
|
| 1199 |
|
|
char name[7];
|
| 1200 |
|
|
|
| 1201 |
|
|
if (!cam || !cam->proc_entry)
|
| 1202 |
|
|
return;
|
| 1203 |
|
|
|
| 1204 |
|
|
sprintf(name, "video%d", cam->vdev.minor);
|
| 1205 |
|
|
remove_proc_entry(name, vicam_proc_root);
|
| 1206 |
|
|
cam->proc_entry = NULL;
|
| 1207 |
|
|
|
| 1208 |
|
|
}
|
| 1209 |
|
|
|
| 1210 |
|
|
#endif
|
| 1211 |
|
|
|
| 1212 |
|
|
int
|
| 1213 |
|
|
vicam_video_init(struct video_device *vdev)
|
| 1214 |
|
|
{
|
| 1215 |
|
|
// This would normally create the proc entry for this camera
|
| 1216 |
|
|
#ifdef CONFIG_PROC_FS
|
| 1217 |
|
|
vicam_create_proc_entry(vdev->priv);
|
| 1218 |
|
|
#endif
|
| 1219 |
|
|
return 0;
|
| 1220 |
|
|
}
|
| 1221 |
|
|
|
| 1222 |
|
|
static long
|
| 1223 |
|
|
vicam_write(struct video_device *v, const char *buf, unsigned long count,
|
| 1224 |
|
|
int nonblock)
|
| 1225 |
|
|
{
|
| 1226 |
|
|
|
| 1227 |
|
|
return -EINVAL;
|
| 1228 |
|
|
}
|
| 1229 |
|
|
|
| 1230 |
|
|
static struct video_device vicam_template = {
|
| 1231 |
|
|
owner:THIS_MODULE,
|
| 1232 |
|
|
name:"ViCam-based USB Camera",
|
| 1233 |
|
|
type:VID_TYPE_CAPTURE,
|
| 1234 |
|
|
hardware:VID_HARDWARE_VICAM,
|
| 1235 |
|
|
open:vicam_open,
|
| 1236 |
|
|
close:vicam_close,
|
| 1237 |
|
|
read:vicam_read,
|
| 1238 |
|
|
write:vicam_write,
|
| 1239 |
|
|
ioctl:vicam_ioctl,
|
| 1240 |
|
|
mmap:vicam_mmap,
|
| 1241 |
|
|
initialize:vicam_video_init,
|
| 1242 |
|
|
minor:-1,
|
| 1243 |
|
|
};
|
| 1244 |
|
|
|
| 1245 |
|
|
/* table of devices that work with this driver */
|
| 1246 |
|
|
static struct usb_device_id vicam_table[] = {
|
| 1247 |
|
|
{USB_DEVICE(USB_VICAM_VENDOR_ID, USB_VICAM_PRODUCT_ID)},
|
| 1248 |
|
|
{} /* Terminating entry */
|
| 1249 |
|
|
};
|
| 1250 |
|
|
|
| 1251 |
|
|
MODULE_DEVICE_TABLE(usb, vicam_table);
|
| 1252 |
|
|
|
| 1253 |
|
|
static struct usb_driver vicam_driver = {
|
| 1254 |
|
|
name:"vicam",
|
| 1255 |
|
|
probe:vicam_probe,
|
| 1256 |
|
|
disconnect:vicam_disconnect,
|
| 1257 |
|
|
id_table:vicam_table
|
| 1258 |
|
|
};
|
| 1259 |
|
|
|
| 1260 |
|
|
/**
|
| 1261 |
|
|
* vicam_probe
|
| 1262 |
|
|
*
|
| 1263 |
|
|
* Called by the usb core when a new device is connected that it thinks
|
| 1264 |
|
|
* this driver might be interested in.
|
| 1265 |
|
|
*/
|
| 1266 |
|
|
static void *
|
| 1267 |
|
|
vicam_probe(struct usb_device *dev, unsigned int ifnum,
|
| 1268 |
|
|
const struct usb_device_id *id)
|
| 1269 |
|
|
{
|
| 1270 |
|
|
int nas, bulkEndpoint = 0;
|
| 1271 |
|
|
const struct usb_interface_descriptor *interface;
|
| 1272 |
|
|
const struct usb_endpoint_descriptor *endpoint;
|
| 1273 |
|
|
struct vicam_camera *cam;
|
| 1274 |
|
|
|
| 1275 |
|
|
/* See if the device offered us matches what we can accept */
|
| 1276 |
|
|
if ((dev->descriptor.idVendor != USB_VICAM_VENDOR_ID) ||
|
| 1277 |
|
|
(dev->descriptor.idProduct != USB_VICAM_PRODUCT_ID)) {
|
| 1278 |
|
|
return NULL;
|
| 1279 |
|
|
}
|
| 1280 |
|
|
|
| 1281 |
|
|
printk(KERN_INFO "ViCam based webcam connected\n");
|
| 1282 |
|
|
|
| 1283 |
|
|
nas = dev->actconfig->interface[ifnum].num_altsetting;
|
| 1284 |
|
|
if (nas != 1) {
|
| 1285 |
|
|
printk(KERN_WARNING
|
| 1286 |
|
|
"Expected only one alternate setting for this camera!\n");
|
| 1287 |
|
|
return NULL;
|
| 1288 |
|
|
}
|
| 1289 |
|
|
|
| 1290 |
|
|
interface = &dev->actconfig->interface[ifnum].altsetting[0];
|
| 1291 |
|
|
DBG(KERN_DEBUG "Interface %d. has %u. endpoints!\n",
|
| 1292 |
|
|
ifnum, (unsigned) (interface->bNumEndpoints));
|
| 1293 |
|
|
endpoint = &interface->endpoint[0];
|
| 1294 |
|
|
|
| 1295 |
|
|
if ((endpoint->bEndpointAddress & 0x80) &&
|
| 1296 |
|
|
((endpoint->bmAttributes & 3) == 0x02)) {
|
| 1297 |
|
|
/* we found a bulk in endpoint */
|
| 1298 |
|
|
bulkEndpoint = endpoint->bEndpointAddress;
|
| 1299 |
|
|
} else {
|
| 1300 |
|
|
printk(KERN_ERR
|
| 1301 |
|
|
"No bulk in endpoint was found ?! (this is bad)\n");
|
| 1302 |
|
|
}
|
| 1303 |
|
|
|
| 1304 |
|
|
if ((cam =
|
| 1305 |
|
|
kmalloc(sizeof (struct vicam_camera), GFP_KERNEL)) == NULL) {
|
| 1306 |
|
|
printk(KERN_WARNING
|
| 1307 |
|
|
"could not allocate kernel memory for vicam_camera struct\n");
|
| 1308 |
|
|
return NULL;
|
| 1309 |
|
|
}
|
| 1310 |
|
|
|
| 1311 |
|
|
memset(cam, 0, sizeof (struct vicam_camera));
|
| 1312 |
|
|
|
| 1313 |
|
|
cam->shutter_speed = 15;
|
| 1314 |
|
|
|
| 1315 |
|
|
init_MUTEX(&cam->busy_lock);
|
| 1316 |
|
|
|
| 1317 |
|
|
memcpy(&cam->vdev, &vicam_template,
|
| 1318 |
|
|
sizeof (vicam_template));
|
| 1319 |
|
|
cam->vdev.priv = cam; // sort of a reverse mapping for those functions that get vdev only
|
| 1320 |
|
|
|
| 1321 |
|
|
cam->udev = dev;
|
| 1322 |
|
|
cam->bulkEndpoint = bulkEndpoint;
|
| 1323 |
|
|
|
| 1324 |
|
|
if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, -1) == -1) {
|
| 1325 |
|
|
kfree(cam);
|
| 1326 |
|
|
printk(KERN_WARNING "video_register_device failed\n");
|
| 1327 |
|
|
return NULL;
|
| 1328 |
|
|
}
|
| 1329 |
|
|
|
| 1330 |
|
|
printk(KERN_INFO "ViCam webcam driver now controlling video device %d\n",cam->vdev.minor);
|
| 1331 |
|
|
|
| 1332 |
|
|
return cam;
|
| 1333 |
|
|
}
|
| 1334 |
|
|
|
| 1335 |
|
|
|
| 1336 |
|
|
static void
|
| 1337 |
|
|
vicam_purge(struct vicam_camera *cam)
|
| 1338 |
|
|
{
|
| 1339 |
|
|
video_unregister_device(&cam->vdev);
|
| 1340 |
|
|
|
| 1341 |
|
|
#ifdef CONFIG_PROC_FS
|
| 1342 |
|
|
vicam_destroy_proc_entry(cam);
|
| 1343 |
|
|
#endif
|
| 1344 |
|
|
|
| 1345 |
|
|
if (cam->raw_image)
|
| 1346 |
|
|
kfree(cam->raw_image);
|
| 1347 |
|
|
if (cam->framebuf)
|
| 1348 |
|
|
usbvideo_rvfree(cam->framebuf,
|
| 1349 |
|
|
VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
|
| 1350 |
|
|
|
| 1351 |
|
|
kfree(cam);
|
| 1352 |
|
|
|
| 1353 |
|
|
printk(KERN_DEBUG "ViCam-based WebCam disconnected\n");
|
| 1354 |
|
|
}
|
| 1355 |
|
|
|
| 1356 |
|
|
static void
|
| 1357 |
|
|
vicam_disconnect(struct usb_device *dev, void *ptr)
|
| 1358 |
|
|
{
|
| 1359 |
|
|
struct vicam_camera *cam = ptr;
|
| 1360 |
|
|
|
| 1361 |
|
|
if (cam->is_opened) {
|
| 1362 |
|
|
cam->is_removed = 1;
|
| 1363 |
|
|
} else {
|
| 1364 |
|
|
vicam_purge(cam);
|
| 1365 |
|
|
}
|
| 1366 |
|
|
}
|
| 1367 |
|
|
|
| 1368 |
|
|
/*
|
| 1369 |
|
|
*/
|
| 1370 |
|
|
static int __init
|
| 1371 |
|
|
usb_vicam_init(void)
|
| 1372 |
|
|
{
|
| 1373 |
|
|
DBG(KERN_INFO "ViCam-based WebCam driver startup\n");
|
| 1374 |
|
|
#ifdef CONFIG_PROC_FS
|
| 1375 |
|
|
vicam_create_proc_root();
|
| 1376 |
|
|
#endif
|
| 1377 |
|
|
if (usb_register(&vicam_driver) != 0)
|
| 1378 |
|
|
printk(KERN_WARNING "usb_register failed!\n");
|
| 1379 |
|
|
return 0;
|
| 1380 |
|
|
}
|
| 1381 |
|
|
|
| 1382 |
|
|
static void __exit
|
| 1383 |
|
|
usb_vicam_exit(void)
|
| 1384 |
|
|
{
|
| 1385 |
|
|
DBG(KERN_INFO
|
| 1386 |
|
|
"ViCam-based WebCam driver shutdown\n");
|
| 1387 |
|
|
|
| 1388 |
|
|
usb_deregister(&vicam_driver);
|
| 1389 |
|
|
#ifdef CONFIG_PROC_FS
|
| 1390 |
|
|
vicam_destroy_proc_root();
|
| 1391 |
|
|
#endif
|
| 1392 |
|
|
}
|
| 1393 |
|
|
|
| 1394 |
|
|
module_init(usb_vicam_init);
|
| 1395 |
|
|
module_exit(usb_vicam_exit);
|
| 1396 |
|
|
|
| 1397 |
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
| 1398 |
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
| 1399 |
|
|
MODULE_LICENSE("GPL");
|
