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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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69 |
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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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80 |
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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,
|
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[] = {
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102 |
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0xB6, 0xC3, 0x8F, 0x06, 0x02, 0x64, 0xE7, 0x07,
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103 |
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0x00, 0x00, 0x08, 0xC0, 0xE7, 0x07, 0x00, 0x00,
|
104 |
|
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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 |
|
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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");
|