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1da177e4 LT |
1 | /* |
2 | * USB ViCam WebCam driver | |
3 | * Copyright (c) 2002 Joe Burks (jburks@wavicle.org), | |
4 | * Christopher L Cheney (ccheney@cheney.cx), | |
5 | * Pavel Machek (pavel@suse.cz), | |
6 | * John Tyner (jtyner@cs.ucr.edu), | |
7 | * Monroe Williams (monroe@pobox.com) | |
8 | * | |
9 | * Supports 3COM HomeConnect PC Digital WebCam | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | * | |
25 | * This source code is based heavily on the CPiA webcam driver which was | |
26 | * written by Peter Pregler, Scott J. Bertin and Johannes Erdfelt | |
27 | * | |
28 | * Portions of this code were also copied from usbvideo.c | |
29 | * | |
30 | * Special thanks to the the whole team at Sourceforge for help making | |
31 | * this driver become a reality. Notably: | |
32 | * Andy Armstrong who reverse engineered the color encoding and | |
33 | * Pavel Machek and Chris Cheney who worked on reverse engineering the | |
34 | * camera controls and wrote the first generation driver. | |
35 | */ | |
36 | ||
37 | #include <linux/kernel.h> | |
38 | #include <linux/module.h> | |
39 | #include <linux/init.h> | |
40 | #include <linux/videodev.h> | |
41 | #include <linux/usb.h> | |
42 | #include <linux/vmalloc.h> | |
43 | #include <linux/slab.h> | |
44 | #include <linux/proc_fs.h> | |
4186ecf8 | 45 | #include <linux/mutex.h> |
1da177e4 LT |
46 | #include "usbvideo.h" |
47 | ||
48 | // #define VICAM_DEBUG | |
49 | ||
50 | #ifdef VICAM_DEBUG | |
51 | #define ADBG(lineno,fmt,args...) printk(fmt, jiffies, __FUNCTION__, lineno, ##args) | |
52 | #define DBG(fmt,args...) ADBG((__LINE__),KERN_DEBUG __FILE__"(%ld):%s (%d):"fmt,##args) | |
53 | #else | |
54 | #define DBG(fmn,args...) do {} while(0) | |
55 | #endif | |
56 | ||
57 | #define DRIVER_AUTHOR "Joe Burks, jburks@wavicle.org" | |
58 | #define DRIVER_DESC "ViCam WebCam Driver" | |
59 | ||
60 | /* Define these values to match your device */ | |
61 | #define USB_VICAM_VENDOR_ID 0x04c1 | |
62 | #define USB_VICAM_PRODUCT_ID 0x009d | |
63 | ||
64 | #define VICAM_BYTES_PER_PIXEL 3 | |
65 | #define VICAM_MAX_READ_SIZE (512*242+128) | |
66 | #define VICAM_MAX_FRAME_SIZE (VICAM_BYTES_PER_PIXEL*320*240) | |
67 | #define VICAM_FRAMES 2 | |
68 | ||
69 | #define VICAM_HEADER_SIZE 64 | |
70 | ||
71 | #define clamp( x, l, h ) max_t( __typeof__( x ), \ | |
72 | ( l ), \ | |
73 | min_t( __typeof__( x ), \ | |
74 | ( h ), \ | |
75 | ( x ) ) ) | |
76 | ||
77 | /* Not sure what all the bytes in these char | |
78 | * arrays do, but they're necessary to make | |
79 | * the camera work. | |
80 | */ | |
81 | ||
82 | static unsigned char setup1[] = { | |
83 | 0xB6, 0xC3, 0x1F, 0x00, 0x02, 0x64, 0xE7, 0x67, | |
84 | 0xFD, 0xFF, 0x0E, 0xC0, 0xE7, 0x09, 0xDE, 0x00, | |
85 | 0x8E, 0x00, 0xC0, 0x09, 0x40, 0x03, 0xC0, 0x17, | |
86 | 0x44, 0x03, 0x4B, 0xAF, 0xC0, 0x07, 0x00, 0x00, | |
87 | 0x4B, 0xAF, 0x97, 0xCF, 0x00, 0x00 | |
88 | }; | |
89 | ||
90 | static unsigned char setup2[] = { | |
91 | 0xB6, 0xC3, 0x03, 0x00, 0x03, 0x64, 0x18, 0x00, | |
92 | 0x00, 0x00 | |
93 | }; | |
94 | ||
95 | static unsigned char setup3[] = { | |
96 | 0xB6, 0xC3, 0x01, 0x00, 0x06, 0x64, 0x00, 0x00 | |
97 | }; | |
98 | ||
99 | static unsigned char setup4[] = { | |
100 | 0xB6, 0xC3, 0x8F, 0x06, 0x02, 0x64, 0xE7, 0x07, | |
101 | 0x00, 0x00, 0x08, 0xC0, 0xE7, 0x07, 0x00, 0x00, | |
102 | 0x3E, 0xC0, 0xE7, 0x07, 0x54, 0x01, 0xAA, 0x00, | |
103 | 0xE7, 0x07, 0xC8, 0x05, 0xB6, 0x00, 0xE7, 0x07, | |
104 | 0x42, 0x01, 0xD2, 0x00, 0xE7, 0x07, 0x7C, 0x00, | |
105 | 0x16, 0x00, 0xE7, 0x07, 0x56, 0x00, 0x18, 0x00, | |
106 | 0xE7, 0x07, 0x06, 0x00, 0x92, 0xC0, 0xE7, 0x07, | |
107 | 0x00, 0x00, 0x1E, 0xC0, 0xE7, 0x07, 0xFF, 0xFF, | |
108 | 0x22, 0xC0, 0xE7, 0x07, 0x04, 0x00, 0x24, 0xC0, | |
109 | 0xE7, 0x07, 0xEC, 0x27, 0x28, 0xC0, 0xE7, 0x07, | |
110 | 0x16, 0x01, 0x8E, 0x00, 0xE7, 0x87, 0x01, 0x00, | |
111 | 0x0E, 0xC0, 0x97, 0xCF, 0xD7, 0x09, 0x00, 0xC0, | |
112 | 0xE7, 0x77, 0x01, 0x00, 0x92, 0xC0, 0x09, 0xC1, | |
113 | 0xE7, 0x09, 0xFE, 0x05, 0x24, 0x01, 0xE7, 0x09, | |
114 | 0x04, 0x06, 0x26, 0x01, 0xE7, 0x07, 0x07, 0x00, | |
115 | 0x92, 0xC0, 0xE7, 0x05, 0x00, 0xC0, 0xC0, 0xDF, | |
116 | 0x97, 0xCF, 0x17, 0x00, 0x57, 0x00, 0x17, 0x02, | |
117 | 0xD7, 0x09, 0x00, 0xC0, 0xE7, 0x77, 0x01, 0x00, | |
118 | 0x92, 0xC0, 0x0A, 0xC1, 0xE7, 0x57, 0xFF, 0xFF, | |
119 | 0xFA, 0x05, 0x0D, 0xC0, 0xE7, 0x57, 0x00, 0x00, | |
120 | 0xFA, 0x05, 0x0F, 0xC0, 0x9F, 0xAF, 0xC6, 0x00, | |
121 | 0xE7, 0x05, 0x00, 0xC0, 0xC8, 0x05, 0xC1, 0x05, | |
122 | 0xC0, 0x05, 0xC0, 0xDF, 0x97, 0xCF, 0x27, 0xDA, | |
123 | 0xFA, 0x05, 0xEF, 0x07, 0x01, 0x00, 0x0B, 0x06, | |
124 | 0x73, 0xCF, 0x9F, 0xAF, 0x78, 0x01, 0x9F, 0xAF, | |
125 | 0x1A, 0x03, 0x6E, 0xCF, 0xE7, 0x09, 0xFC, 0x05, | |
126 | 0x24, 0x01, 0xE7, 0x09, 0x02, 0x06, 0x26, 0x01, | |
127 | 0xE7, 0x07, 0x07, 0x00, 0x92, 0xC0, 0xE7, 0x09, | |
128 | 0xFC, 0x05, 0xFE, 0x05, 0xE7, 0x09, 0x02, 0x06, | |
129 | 0x04, 0x06, 0xE7, 0x09, 0x00, 0x06, 0xFC, 0x05, | |
130 | 0xE7, 0x09, 0xFE, 0x05, 0x00, 0x06, 0x27, 0xDA, | |
131 | 0xFA, 0x05, 0xE7, 0x57, 0x01, 0x00, 0xFA, 0x05, | |
132 | 0x02, 0xCA, 0x04, 0xC0, 0x97, 0xCF, 0x9F, 0xAF, | |
133 | 0x66, 0x05, 0x97, 0xCF, 0xE7, 0x07, 0x40, 0x00, | |
134 | 0x02, 0x06, 0xC8, 0x09, 0xFC, 0x05, 0x9F, 0xAF, | |
135 | 0xDA, 0x02, 0x97, 0xCF, 0xCF, 0x17, 0x02, 0x00, | |
136 | 0xEF, 0x57, 0x81, 0x00, 0x09, 0x06, 0x9F, 0xA0, | |
137 | 0xB6, 0x01, 0xEF, 0x57, 0x80, 0x00, 0x09, 0x06, | |
138 | 0x9F, 0xA0, 0x40, 0x02, 0xEF, 0x57, 0x01, 0x00, | |
139 | 0x0B, 0x06, 0x9F, 0xA0, 0x46, 0x03, 0xE7, 0x07, | |
140 | 0x01, 0x00, 0x0A, 0xC0, 0x46, 0xAF, 0x47, 0xAF, | |
141 | 0x9F, 0xAF, 0x40, 0x02, 0xE7, 0x07, 0x2E, 0x00, | |
142 | 0x0A, 0xC0, 0xEF, 0x87, 0x80, 0x00, 0x09, 0x06, | |
143 | 0x97, 0xCF, 0x00, 0x0E, 0x01, 0x00, 0xC0, 0x57, | |
144 | 0x51, 0x00, 0x9F, 0xC0, 0x9E, 0x02, 0xC0, 0x57, | |
145 | 0x50, 0x00, 0x20, 0xC0, 0xC0, 0x57, 0x55, 0x00, | |
146 | 0x12, 0xC0, 0xC0, 0x57, 0x56, 0x00, 0x9F, 0xC0, | |
147 | 0x72, 0x02, 0x9F, 0xCF, 0xD6, 0x02, 0xC1, 0x0B, | |
148 | 0x08, 0x06, 0x01, 0xD0, 0x6F, 0x90, 0x08, 0x06, | |
149 | 0xC0, 0x07, 0x08, 0x00, 0xC1, 0x0B, 0x08, 0x06, | |
150 | 0x9F, 0xAF, 0x28, 0x05, 0x97, 0xCF, 0x2F, 0x0E, | |
151 | 0x02, 0x00, 0x08, 0x06, 0xC0, 0x07, 0x08, 0x00, | |
152 | 0xC1, 0x0B, 0x08, 0x06, 0x9F, 0xAF, 0x28, 0x05, | |
153 | 0x9F, 0xCF, 0xD6, 0x02, 0x2F, 0x0E, 0x02, 0x00, | |
154 | 0x09, 0x06, 0xEF, 0x87, 0x80, 0x00, 0x09, 0x06, | |
155 | 0x9F, 0xCF, 0xD6, 0x02, 0xEF, 0x67, 0x7F, 0xFF, | |
156 | 0x09, 0x06, 0xE7, 0x67, 0xFF, 0xFD, 0x22, 0xC0, | |
157 | 0xE7, 0x67, 0xEF, 0xFF, 0x24, 0xC0, 0xE7, 0x87, | |
158 | 0x10, 0x00, 0x28, 0xC0, 0x9F, 0xAF, 0xB8, 0x05, | |
159 | 0xE7, 0x87, 0xE0, 0x21, 0x24, 0xC0, 0x9F, 0xAF, | |
160 | 0xA8, 0x05, 0xE7, 0x87, 0x08, 0x00, 0x24, 0xC0, | |
161 | 0xE7, 0x67, 0xDF, 0xFF, 0x24, 0xC0, 0xC8, 0x07, | |
162 | 0x0A, 0x00, 0xC0, 0x07, 0x00, 0x00, 0xC1, 0x07, | |
163 | 0x01, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0x9F, 0xAF, | |
164 | 0xB8, 0x05, 0xC0, 0x07, 0x9E, 0x00, 0x9F, 0xAF, | |
165 | 0x44, 0x05, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0, | |
166 | 0xC0, 0x09, 0x20, 0xC0, 0xE7, 0x87, 0x00, 0x01, | |
167 | 0x24, 0xC0, 0xC0, 0x77, 0x00, 0x02, 0x0F, 0xC1, | |
168 | 0xE7, 0x67, 0xF7, 0xFF, 0x24, 0xC0, 0xE7, 0x67, | |
169 | 0xF7, 0xFF, 0x24, 0xC0, 0xE7, 0x87, 0x08, 0x00, | |
170 | 0x24, 0xC0, 0x08, 0xDA, 0x5E, 0xC1, 0xEF, 0x07, | |
171 | 0x80, 0x00, 0x09, 0x06, 0x97, 0xCF, 0xEF, 0x07, | |
172 | 0x01, 0x00, 0x0A, 0x06, 0x97, 0xCF, 0xEF, 0x07, | |
173 | 0x00, 0x00, 0x0B, 0x06, 0xEF, 0x07, 0x00, 0x00, | |
174 | 0x0A, 0x06, 0xEF, 0x67, 0x7F, 0xFF, 0x09, 0x06, | |
175 | 0xEF, 0x07, 0x00, 0x00, 0x0D, 0x06, 0xE7, 0x67, | |
176 | 0xEF, 0xFF, 0x28, 0xC0, 0xE7, 0x67, 0x17, 0xD8, | |
177 | 0x24, 0xC0, 0xE7, 0x07, 0x00, 0x00, 0x1E, 0xC0, | |
178 | 0xE7, 0x07, 0xFF, 0xFF, 0x22, 0xC0, 0x97, 0xCF, | |
179 | 0xC8, 0x07, 0x0E, 0x06, 0x9F, 0xAF, 0xDA, 0x02, | |
180 | 0xE7, 0x07, 0x00, 0x00, 0xF2, 0x05, 0xE7, 0x07, | |
181 | 0x10, 0x00, 0xF6, 0x05, 0xE7, 0x07, 0x0E, 0x06, | |
182 | 0xF4, 0x05, 0xE7, 0x07, 0xD6, 0x02, 0xF8, 0x05, | |
183 | 0xC8, 0x07, 0xF2, 0x05, 0xC1, 0x07, 0x00, 0x80, | |
184 | 0x50, 0xAF, 0x97, 0xCF, 0x2F, 0x0C, 0x02, 0x00, | |
185 | 0x07, 0x06, 0x2F, 0x0C, 0x04, 0x00, 0x06, 0x06, | |
186 | 0xE7, 0x07, 0x00, 0x00, 0xF2, 0x05, 0xE7, 0x07, | |
187 | 0x10, 0x00, 0xF6, 0x05, 0xE7, 0x07, 0xE2, 0x05, | |
188 | 0xF4, 0x05, 0xE7, 0x07, 0xCE, 0x02, 0xF8, 0x05, | |
189 | 0xC8, 0x07, 0xF2, 0x05, 0xC1, 0x07, 0x00, 0x80, | |
190 | 0x51, 0xAF, 0x97, 0xCF, 0x9F, 0xAF, 0x66, 0x04, | |
191 | 0x9F, 0xAF, 0x1A, 0x03, 0x59, 0xAF, 0x97, 0xCF, | |
192 | 0xC0, 0x07, 0x0E, 0x00, 0xC1, 0x0B, 0x0C, 0x06, | |
193 | 0x41, 0xD1, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, | |
194 | 0x3C, 0x00, 0x9F, 0xAF, 0x44, 0x05, 0x68, 0x00, | |
195 | 0xC0, 0x07, 0x3B, 0x00, 0x9F, 0xAF, 0x44, 0x05, | |
196 | 0x6F, 0x00, 0x0C, 0x06, 0x68, 0x00, 0xE0, 0x07, | |
197 | 0x04, 0x01, 0xE8, 0x0B, 0x0A, 0x06, 0xE8, 0x07, | |
198 | 0x00, 0x00, 0xE0, 0x07, 0x00, 0x02, 0xE0, 0x07, | |
199 | 0xEC, 0x01, 0xE0, 0x07, 0xFC, 0xFF, 0x97, 0xCF, | |
200 | 0xE7, 0x07, 0xFF, 0xFF, 0xFA, 0x05, 0xEF, 0x07, | |
201 | 0x00, 0x00, 0x0B, 0x06, 0xE7, 0x07, 0x0E, 0x06, | |
202 | 0x24, 0x01, 0xE7, 0x07, 0x0E, 0x06, 0xFE, 0x05, | |
203 | 0xE7, 0x07, 0x40, 0x00, 0x26, 0x01, 0xE7, 0x07, | |
204 | 0x40, 0x00, 0x04, 0x06, 0xE7, 0x07, 0x07, 0x00, | |
205 | 0x92, 0xC0, 0x97, 0xCF, 0xEF, 0x07, 0x02, 0x00, | |
206 | 0x0B, 0x06, 0x9F, 0xAF, 0x78, 0x01, 0xEF, 0x77, | |
207 | 0x80, 0x00, 0x07, 0x06, 0x9F, 0xC0, 0x14, 0x04, | |
208 | 0xEF, 0x77, 0x01, 0x00, 0x07, 0x06, 0x37, 0xC0, | |
209 | 0xEF, 0x77, 0x01, 0x00, 0x0D, 0x06, 0x0F, 0xC1, | |
210 | 0xEF, 0x07, 0x01, 0x00, 0x0D, 0x06, 0xC0, 0x07, | |
211 | 0x02, 0x00, 0xC1, 0x07, 0x30, 0x00, 0x9F, 0xAF, | |
212 | 0x28, 0x05, 0xC0, 0x07, 0x01, 0x00, 0xC1, 0x07, | |
213 | 0x02, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0xC8, 0x07, | |
214 | 0xFF, 0x4F, 0x9F, 0xAF, 0xA8, 0x05, 0xC0, 0x07, | |
215 | 0x38, 0x00, 0x9F, 0xAF, 0x44, 0x05, 0xC1, 0x77, | |
216 | 0x03, 0x00, 0x02, 0xC1, 0x08, 0xDA, 0x75, 0xC1, | |
217 | 0xC1, 0x77, 0x01, 0x00, 0x0A, 0xC1, 0xC0, 0x07, | |
218 | 0x01, 0x00, 0xC1, 0x07, 0x02, 0x00, 0x9F, 0xAF, | |
219 | 0x28, 0x05, 0xEF, 0x07, 0x01, 0x00, 0x06, 0x06, | |
220 | 0x2C, 0xCF, 0xC0, 0x07, 0x01, 0x00, 0xC1, 0x07, | |
221 | 0x04, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0xEF, 0x07, | |
222 | 0x00, 0x00, 0x06, 0x06, 0x22, 0xCF, 0xEF, 0x07, | |
223 | 0x00, 0x00, 0x0D, 0x06, 0xEF, 0x57, 0x01, 0x00, | |
224 | 0x06, 0x06, 0x1B, 0xC0, 0xC0, 0x07, 0x01, 0x00, | |
225 | 0xC1, 0x07, 0x01, 0x00, 0x9F, 0xAF, 0x28, 0x05, | |
226 | 0xC0, 0x07, 0x02, 0x00, 0xC1, 0x07, 0x30, 0x00, | |
227 | 0x9F, 0xAF, 0x28, 0x05, 0xC8, 0x07, 0xFF, 0x4F, | |
228 | 0x9F, 0xAF, 0xA8, 0x05, 0xC0, 0x07, 0x38, 0x00, | |
229 | 0x9F, 0xAF, 0x44, 0x05, 0xC1, 0x67, 0x03, 0x00, | |
230 | 0xC1, 0x57, 0x03, 0x00, 0x02, 0xC0, 0x08, 0xDA, | |
231 | 0x73, 0xC1, 0xC0, 0x07, 0x02, 0x00, 0xC1, 0x07, | |
232 | 0x12, 0x00, 0xEF, 0x57, 0x00, 0x00, 0x06, 0x06, | |
233 | 0x02, 0xC0, 0xC1, 0x07, 0x23, 0x00, 0x9F, 0xAF, | |
234 | 0x28, 0x05, 0xC0, 0x07, 0x14, 0x00, 0xC1, 0x0B, | |
235 | 0xEA, 0x05, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, | |
236 | 0x3E, 0x00, 0x9F, 0xAF, 0x0A, 0x05, 0xE7, 0x09, | |
237 | 0xE4, 0x05, 0xFA, 0x05, 0x27, 0xD8, 0xFA, 0x05, | |
238 | 0xE7, 0x07, 0x0E, 0x06, 0xFC, 0x05, 0xE7, 0x07, | |
239 | 0x4E, 0x06, 0x00, 0x06, 0xE7, 0x07, 0x40, 0x00, | |
240 | 0x02, 0x06, 0x9F, 0xAF, 0x66, 0x05, 0x9F, 0xAF, | |
241 | 0xC6, 0x00, 0x97, 0xCF, 0xC1, 0x0B, 0xE2, 0x05, | |
242 | 0x41, 0xD0, 0x01, 0xD2, 0xC1, 0x17, 0x23, 0x00, | |
243 | 0x9F, 0xAF, 0xDC, 0x04, 0xC0, 0x07, 0x04, 0x00, | |
244 | 0xC1, 0x0B, 0xE3, 0x05, 0x9F, 0xAF, 0x28, 0x05, | |
245 | 0xC0, 0x07, 0x06, 0x00, 0xC1, 0x09, 0xE6, 0x05, | |
246 | 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x07, 0x00, | |
247 | 0xC1, 0x09, 0xE6, 0x05, 0xC1, 0xD1, 0x9F, 0xAF, | |
248 | 0x28, 0x05, 0xC0, 0x07, 0x0B, 0x00, 0xC1, 0x09, | |
249 | 0xE8, 0x05, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, | |
250 | 0x0C, 0x00, 0xC1, 0x09, 0xE8, 0x05, 0xC1, 0xD1, | |
251 | 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x0D, 0x00, | |
252 | 0xC1, 0x07, 0x09, 0x00, 0x9F, 0xAF, 0x28, 0x05, | |
253 | 0xC0, 0x07, 0x03, 0x00, 0xC1, 0x07, 0x32, 0x00, | |
254 | 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x0F, 0x00, | |
255 | 0xC1, 0x07, 0x00, 0x00, 0x9F, 0xAF, 0x28, 0x05, | |
256 | 0x97, 0xCF, 0xE7, 0x67, 0xFF, 0xD9, 0x24, 0xC0, | |
257 | 0xC8, 0x07, 0x0A, 0x00, 0x40, 0x00, 0xC0, 0x67, | |
258 | 0x00, 0x02, 0x27, 0x80, 0x24, 0xC0, 0xE7, 0x87, | |
259 | 0x00, 0x04, 0x24, 0xC0, 0xE7, 0x67, 0xFF, 0xF9, | |
260 | 0x24, 0xC0, 0x01, 0xD2, 0x08, 0xDA, 0x72, 0xC1, | |
261 | 0xE7, 0x87, 0x00, 0x20, 0x24, 0xC0, 0x97, 0xCF, | |
262 | 0x27, 0x00, 0x1E, 0xC0, 0xE7, 0x87, 0xFF, 0x00, | |
263 | 0x22, 0xC0, 0xE7, 0x67, 0x7F, 0xFF, 0x24, 0xC0, | |
264 | 0xE7, 0x87, 0x80, 0x00, 0x24, 0xC0, 0xE7, 0x87, | |
265 | 0x80, 0x00, 0x24, 0xC0, 0x97, 0xCF, 0x9F, 0xAF, | |
266 | 0x0A, 0x05, 0x67, 0x00, 0x1E, 0xC0, 0xE7, 0x67, | |
267 | 0xBF, 0xFF, 0x24, 0xC0, 0xE7, 0x87, 0x40, 0x00, | |
268 | 0x24, 0xC0, 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0, | |
269 | 0x97, 0xCF, 0x9F, 0xAF, 0x0A, 0x05, 0xE7, 0x67, | |
270 | 0x00, 0xFF, 0x22, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, | |
271 | 0x24, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0, | |
272 | 0xC1, 0x09, 0x20, 0xC0, 0xE7, 0x87, 0x00, 0x01, | |
273 | 0x24, 0xC0, 0x97, 0xCF, 0xC0, 0x07, 0x40, 0x00, | |
274 | 0xC8, 0x09, 0xFC, 0x05, 0xE7, 0x67, 0x00, 0xFF, | |
275 | 0x22, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0, | |
276 | 0xE7, 0x67, 0xBF, 0xFF, 0x24, 0xC0, 0xE7, 0x67, | |
277 | 0xBF, 0xFF, 0x24, 0xC0, 0x00, 0xDA, 0xE8, 0x09, | |
278 | 0x20, 0xC0, 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0, | |
279 | 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0, 0x00, 0xDA, | |
280 | 0xE8, 0x09, 0x20, 0xC0, 0x6D, 0xC1, 0xE7, 0x87, | |
281 | 0x00, 0x01, 0x24, 0xC0, 0x97, 0xCF, 0xE7, 0x07, | |
282 | 0x32, 0x00, 0x12, 0xC0, 0xE7, 0x77, 0x00, 0x80, | |
283 | 0x12, 0xC0, 0x7C, 0xC0, 0x97, 0xCF, 0xE7, 0x07, | |
284 | 0x20, 0x4E, 0x12, 0xC0, 0xE7, 0x77, 0x00, 0x80, | |
285 | 0x12, 0xC0, 0x7C, 0xC0, 0x97, 0xCF, 0x09, 0x02, | |
286 | 0x19, 0x00, 0x01, 0x01, 0x00, 0x80, 0x96, 0x09, | |
287 | 0x04, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, | |
288 | 0x07, 0x05, 0x81, 0x02, 0x40, 0x00, 0x00, 0x00, | |
289 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
290 | 0x00, 0x00, 0x00, 0x00, 0x00, 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, | |
311 | }; | |
312 | ||
313 | static unsigned char setup5[] = { | |
314 | 0xB6, 0xC3, 0x2F, 0x01, 0x03, 0x64, 0x0E, 0x00, | |
315 | 0x14, 0x00, 0x1A, 0x00, 0x20, 0x00, 0x26, 0x00, | |
316 | 0x4A, 0x00, 0x64, 0x00, 0x6A, 0x00, 0x92, 0x00, | |
317 | 0x9A, 0x00, 0xA0, 0x00, 0xB2, 0x00, 0xB8, 0x00, | |
318 | 0xBE, 0x00, 0xC2, 0x00, 0xC8, 0x00, 0xCE, 0x00, | |
319 | 0xDC, 0x00, 0xDA, 0x00, 0xE2, 0x00, 0xE0, 0x00, | |
320 | 0xE8, 0x00, 0xE6, 0x00, 0xEE, 0x00, 0xEC, 0x00, | |
321 | 0xF2, 0x00, 0xF8, 0x00, 0x02, 0x01, 0x0A, 0x01, | |
322 | 0x0E, 0x01, 0x12, 0x01, 0x1E, 0x01, 0x22, 0x01, | |
323 | 0x28, 0x01, 0x2C, 0x01, 0x32, 0x01, 0x36, 0x01, | |
324 | 0x44, 0x01, 0x50, 0x01, 0x5E, 0x01, 0x72, 0x01, | |
325 | 0x76, 0x01, 0x7A, 0x01, 0x80, 0x01, 0x88, 0x01, | |
326 | 0x8C, 0x01, 0x94, 0x01, 0x9C, 0x01, 0xA0, 0x01, | |
327 | 0xA4, 0x01, 0xAA, 0x01, 0xB0, 0x01, 0xB4, 0x01, | |
328 | 0xBA, 0x01, 0xD0, 0x01, 0xDA, 0x01, 0xF6, 0x01, | |
329 | 0xFA, 0x01, 0x02, 0x02, 0x34, 0x02, 0x3C, 0x02, | |
330 | 0x44, 0x02, 0x4A, 0x02, 0x50, 0x02, 0x56, 0x02, | |
331 | 0x74, 0x02, 0x78, 0x02, 0x7E, 0x02, 0x84, 0x02, | |
332 | 0x8A, 0x02, 0x88, 0x02, 0x90, 0x02, 0x8E, 0x02, | |
333 | 0x94, 0x02, 0xA2, 0x02, 0xA8, 0x02, 0xAE, 0x02, | |
334 | 0xB4, 0x02, 0xBA, 0x02, 0xB8, 0x02, 0xC0, 0x02, | |
335 | 0xBE, 0x02, 0xC4, 0x02, 0xD0, 0x02, 0xD4, 0x02, | |
336 | 0xE0, 0x02, 0xE6, 0x02, 0xEE, 0x02, 0xF8, 0x02, | |
337 | 0xFC, 0x02, 0x06, 0x03, 0x1E, 0x03, 0x24, 0x03, | |
338 | 0x28, 0x03, 0x30, 0x03, 0x2E, 0x03, 0x3C, 0x03, | |
339 | 0x4A, 0x03, 0x4E, 0x03, 0x54, 0x03, 0x58, 0x03, | |
340 | 0x5E, 0x03, 0x66, 0x03, 0x6E, 0x03, 0x7A, 0x03, | |
341 | 0x86, 0x03, 0x8E, 0x03, 0x96, 0x03, 0xB2, 0x03, | |
342 | 0xB8, 0x03, 0xC6, 0x03, 0xCC, 0x03, 0xD4, 0x03, | |
343 | 0xDA, 0x03, 0xE8, 0x03, 0xF4, 0x03, 0xFC, 0x03, | |
344 | 0x04, 0x04, 0x20, 0x04, 0x2A, 0x04, 0x32, 0x04, | |
345 | 0x36, 0x04, 0x3E, 0x04, 0x44, 0x04, 0x42, 0x04, | |
346 | 0x48, 0x04, 0x4E, 0x04, 0x4C, 0x04, 0x54, 0x04, | |
347 | 0x52, 0x04, 0x5A, 0x04, 0x5E, 0x04, 0x62, 0x04, | |
348 | 0x68, 0x04, 0x74, 0x04, 0x7C, 0x04, 0x80, 0x04, | |
349 | 0x88, 0x04, 0x8C, 0x04, 0x94, 0x04, 0x9A, 0x04, | |
350 | 0xA2, 0x04, 0xA6, 0x04, 0xAE, 0x04, 0xB4, 0x04, | |
351 | 0xC0, 0x04, 0xCC, 0x04, 0xD8, 0x04, 0x2A, 0x05, | |
352 | 0x46, 0x05, 0x6C, 0x05, 0x00, 0x00 | |
353 | }; | |
354 | ||
355 | /* rvmalloc / rvfree copied from usbvideo.c | |
356 | * | |
357 | * Not sure why these are not yet non-statics which I can reference through | |
358 | * usbvideo.h the same as it is in 2.4.20. I bet this will get fixed sometime | |
359 | * in the future. | |
360 | * | |
361 | */ | |
362 | static void *rvmalloc(unsigned long size) | |
363 | { | |
364 | void *mem; | |
365 | unsigned long adr; | |
366 | ||
367 | size = PAGE_ALIGN(size); | |
368 | mem = vmalloc_32(size); | |
369 | if (!mem) | |
370 | return NULL; | |
371 | ||
372 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
373 | adr = (unsigned long) mem; | |
374 | while (size > 0) { | |
375 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
376 | adr += PAGE_SIZE; | |
377 | size -= PAGE_SIZE; | |
378 | } | |
379 | ||
380 | return mem; | |
381 | } | |
382 | ||
383 | static void rvfree(void *mem, unsigned long size) | |
384 | { | |
385 | unsigned long adr; | |
386 | ||
387 | if (!mem) | |
388 | return; | |
389 | ||
390 | adr = (unsigned long) mem; | |
391 | while ((long) size > 0) { | |
392 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
393 | adr += PAGE_SIZE; | |
394 | size -= PAGE_SIZE; | |
395 | } | |
396 | vfree(mem); | |
397 | } | |
398 | ||
399 | struct vicam_camera { | |
400 | u16 shutter_speed; // capture shutter speed | |
401 | u16 gain; // capture gain | |
402 | ||
403 | u8 *raw_image; // raw data captured from the camera | |
404 | u8 *framebuf; // processed data in RGB24 format | |
405 | u8 *cntrlbuf; // area used to send control msgs | |
406 | ||
407 | struct video_device vdev; // v4l video device | |
408 | struct usb_device *udev; // usb device | |
409 | ||
410 | /* guard against simultaneous accesses to the camera */ | |
4186ecf8 | 411 | struct mutex cam_lock; |
1da177e4 LT |
412 | |
413 | int is_initialized; | |
414 | u8 open_count; | |
415 | u8 bulkEndpoint; | |
416 | int needsDummyRead; | |
417 | ||
418 | #if defined(CONFIG_VIDEO_PROC_FS) | |
419 | struct proc_dir_entry *proc_dir; | |
420 | #endif | |
421 | ||
422 | }; | |
423 | ||
424 | static int vicam_probe( struct usb_interface *intf, const struct usb_device_id *id); | |
425 | static void vicam_disconnect(struct usb_interface *intf); | |
426 | static void read_frame(struct vicam_camera *cam, int framenum); | |
427 | static void vicam_decode_color(const u8 *, u8 *); | |
428 | ||
429 | static int __send_control_msg(struct vicam_camera *cam, | |
430 | u8 request, | |
431 | u16 value, | |
432 | u16 index, | |
433 | unsigned char *cp, | |
434 | u16 size) | |
435 | { | |
436 | int status; | |
437 | ||
438 | /* cp must be memory that has been allocated by kmalloc */ | |
439 | ||
440 | status = usb_control_msg(cam->udev, | |
441 | usb_sndctrlpipe(cam->udev, 0), | |
442 | request, | |
443 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
444 | USB_RECIP_DEVICE, value, index, | |
445 | cp, size, 1000); | |
446 | ||
447 | status = min(status, 0); | |
448 | ||
449 | if (status < 0) { | |
450 | printk(KERN_INFO "Failed sending control message, error %d.\n", | |
451 | status); | |
452 | } | |
453 | ||
454 | return status; | |
455 | } | |
456 | ||
457 | static int send_control_msg(struct vicam_camera *cam, | |
458 | u8 request, | |
459 | u16 value, | |
460 | u16 index, | |
461 | unsigned char *cp, | |
462 | u16 size) | |
463 | { | |
464 | int status = -ENODEV; | |
4186ecf8 | 465 | mutex_lock(&cam->cam_lock); |
1da177e4 LT |
466 | if (cam->udev) { |
467 | status = __send_control_msg(cam, request, value, | |
468 | index, cp, size); | |
469 | } | |
4186ecf8 | 470 | mutex_unlock(&cam->cam_lock); |
1da177e4 LT |
471 | return status; |
472 | } | |
473 | static int | |
474 | initialize_camera(struct vicam_camera *cam) | |
475 | { | |
476 | const struct { | |
477 | u8 *data; | |
478 | u32 size; | |
479 | } firmware[] = { | |
480 | { .data = setup1, .size = sizeof(setup1) }, | |
481 | { .data = setup2, .size = sizeof(setup2) }, | |
482 | { .data = setup3, .size = sizeof(setup3) }, | |
483 | { .data = setup4, .size = sizeof(setup4) }, | |
484 | { .data = setup5, .size = sizeof(setup5) }, | |
485 | { .data = setup3, .size = sizeof(setup3) }, | |
486 | { .data = NULL, .size = 0 } | |
487 | }; | |
488 | ||
489 | int err, i; | |
490 | ||
491 | for (i = 0, err = 0; firmware[i].data && !err; i++) { | |
492 | memcpy(cam->cntrlbuf, firmware[i].data, firmware[i].size); | |
493 | ||
494 | err = send_control_msg(cam, 0xff, 0, 0, | |
495 | cam->cntrlbuf, firmware[i].size); | |
496 | } | |
497 | ||
498 | return err; | |
499 | } | |
500 | ||
501 | static int | |
502 | set_camera_power(struct vicam_camera *cam, int state) | |
503 | { | |
504 | int status; | |
505 | ||
506 | if ((status = send_control_msg(cam, 0x50, state, 0, NULL, 0)) < 0) | |
507 | return status; | |
508 | ||
509 | if (state) { | |
510 | send_control_msg(cam, 0x55, 1, 0, NULL, 0); | |
511 | } | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | static int | |
517 | vicam_ioctl(struct inode *inode, struct file *file, unsigned int ioctlnr, unsigned long arg) | |
518 | { | |
519 | void __user *user_arg = (void __user *)arg; | |
520 | struct vicam_camera *cam = file->private_data; | |
521 | int retval = 0; | |
522 | ||
523 | if (!cam) | |
524 | return -ENODEV; | |
525 | ||
526 | switch (ioctlnr) { | |
527 | /* query capabilities */ | |
528 | case VIDIOCGCAP: | |
529 | { | |
530 | struct video_capability b; | |
531 | ||
532 | DBG("VIDIOCGCAP\n"); | |
533 | memset(&b, 0, sizeof(b)); | |
534 | strcpy(b.name, "ViCam-based Camera"); | |
535 | b.type = VID_TYPE_CAPTURE; | |
536 | b.channels = 1; | |
537 | b.audios = 0; | |
538 | b.maxwidth = 320; /* VIDEOSIZE_CIF */ | |
539 | b.maxheight = 240; | |
540 | b.minwidth = 320; /* VIDEOSIZE_48_48 */ | |
541 | b.minheight = 240; | |
542 | ||
543 | if (copy_to_user(user_arg, &b, sizeof(b))) | |
544 | retval = -EFAULT; | |
545 | ||
546 | break; | |
547 | } | |
548 | /* get/set video source - we are a camera and nothing else */ | |
549 | case VIDIOCGCHAN: | |
550 | { | |
551 | struct video_channel v; | |
552 | ||
553 | DBG("VIDIOCGCHAN\n"); | |
554 | if (copy_from_user(&v, user_arg, sizeof(v))) { | |
555 | retval = -EFAULT; | |
556 | break; | |
557 | } | |
558 | if (v.channel != 0) { | |
559 | retval = -EINVAL; | |
560 | break; | |
561 | } | |
562 | ||
563 | v.channel = 0; | |
564 | strcpy(v.name, "Camera"); | |
565 | v.tuners = 0; | |
566 | v.flags = 0; | |
567 | v.type = VIDEO_TYPE_CAMERA; | |
568 | v.norm = 0; | |
569 | ||
570 | if (copy_to_user(user_arg, &v, sizeof(v))) | |
571 | retval = -EFAULT; | |
572 | break; | |
573 | } | |
574 | ||
575 | case VIDIOCSCHAN: | |
576 | { | |
577 | int v; | |
578 | ||
579 | if (copy_from_user(&v, user_arg, sizeof(v))) | |
580 | retval = -EFAULT; | |
581 | DBG("VIDIOCSCHAN %d\n", v); | |
582 | ||
583 | if (retval == 0 && v != 0) | |
584 | retval = -EINVAL; | |
585 | ||
586 | break; | |
587 | } | |
588 | ||
589 | /* image properties */ | |
590 | case VIDIOCGPICT: | |
591 | { | |
592 | struct video_picture vp; | |
593 | DBG("VIDIOCGPICT\n"); | |
594 | memset(&vp, 0, sizeof (struct video_picture)); | |
595 | vp.brightness = cam->gain << 8; | |
596 | vp.depth = 24; | |
597 | vp.palette = VIDEO_PALETTE_RGB24; | |
598 | if (copy_to_user(user_arg, &vp, sizeof (struct video_picture))) | |
599 | retval = -EFAULT; | |
600 | break; | |
601 | } | |
602 | ||
603 | case VIDIOCSPICT: | |
604 | { | |
605 | struct video_picture vp; | |
606 | ||
607 | if (copy_from_user(&vp, user_arg, sizeof(vp))) { | |
608 | retval = -EFAULT; | |
609 | break; | |
610 | } | |
611 | ||
612 | DBG("VIDIOCSPICT depth = %d, pal = %d\n", vp.depth, | |
613 | vp.palette); | |
614 | ||
615 | cam->gain = vp.brightness >> 8; | |
616 | ||
617 | if (vp.depth != 24 | |
618 | || vp.palette != VIDEO_PALETTE_RGB24) | |
619 | retval = -EINVAL; | |
620 | ||
621 | break; | |
622 | } | |
623 | ||
624 | /* get/set capture window */ | |
625 | case VIDIOCGWIN: | |
626 | { | |
627 | struct video_window vw; | |
628 | vw.x = 0; | |
629 | vw.y = 0; | |
630 | vw.width = 320; | |
631 | vw.height = 240; | |
632 | vw.chromakey = 0; | |
633 | vw.flags = 0; | |
634 | vw.clips = NULL; | |
635 | vw.clipcount = 0; | |
636 | ||
637 | DBG("VIDIOCGWIN\n"); | |
638 | ||
639 | if (copy_to_user(user_arg, (void *)&vw, sizeof(vw))) | |
640 | retval = -EFAULT; | |
641 | ||
642 | // I'm not sure what the deal with a capture window is, it is very poorly described | |
643 | // in the doc. So I won't support it now. | |
644 | break; | |
645 | } | |
646 | ||
647 | case VIDIOCSWIN: | |
648 | { | |
649 | ||
650 | struct video_window vw; | |
651 | ||
652 | if (copy_from_user(&vw, user_arg, sizeof(vw))) { | |
653 | retval = -EFAULT; | |
654 | break; | |
655 | } | |
656 | ||
657 | DBG("VIDIOCSWIN %d x %d\n", vw.width, vw.height); | |
658 | ||
659 | if ( vw.width != 320 || vw.height != 240 ) | |
660 | retval = -EFAULT; | |
661 | ||
662 | break; | |
663 | } | |
664 | ||
665 | /* mmap interface */ | |
666 | case VIDIOCGMBUF: | |
667 | { | |
668 | struct video_mbuf vm; | |
669 | int i; | |
670 | ||
671 | DBG("VIDIOCGMBUF\n"); | |
672 | memset(&vm, 0, sizeof (vm)); | |
673 | vm.size = | |
674 | VICAM_MAX_FRAME_SIZE * VICAM_FRAMES; | |
675 | vm.frames = VICAM_FRAMES; | |
676 | for (i = 0; i < VICAM_FRAMES; i++) | |
677 | vm.offsets[i] = VICAM_MAX_FRAME_SIZE * i; | |
678 | ||
679 | if (copy_to_user(user_arg, (void *)&vm, sizeof(vm))) | |
680 | retval = -EFAULT; | |
681 | ||
682 | break; | |
683 | } | |
684 | ||
685 | case VIDIOCMCAPTURE: | |
686 | { | |
687 | struct video_mmap vm; | |
688 | // int video_size; | |
689 | ||
690 | if (copy_from_user((void *)&vm, user_arg, sizeof(vm))) { | |
691 | retval = -EFAULT; | |
692 | break; | |
693 | } | |
694 | ||
695 | DBG("VIDIOCMCAPTURE frame=%d, height=%d, width=%d, format=%d.\n",vm.frame,vm.width,vm.height,vm.format); | |
696 | ||
697 | if ( vm.frame >= VICAM_FRAMES || vm.format != VIDEO_PALETTE_RGB24 ) | |
698 | retval = -EINVAL; | |
699 | ||
700 | // in theory right here we'd start the image capturing | |
701 | // (fill in a bulk urb and submit it asynchronously) | |
702 | // | |
703 | // Instead we're going to do a total hack job for now and | |
704 | // retrieve the frame in VIDIOCSYNC | |
705 | ||
706 | break; | |
707 | } | |
708 | ||
709 | case VIDIOCSYNC: | |
710 | { | |
711 | int frame; | |
712 | ||
713 | if (copy_from_user((void *)&frame, user_arg, sizeof(int))) { | |
714 | retval = -EFAULT; | |
715 | break; | |
716 | } | |
717 | DBG("VIDIOCSYNC: %d\n", frame); | |
718 | ||
719 | read_frame(cam, frame); | |
720 | vicam_decode_color(cam->raw_image, | |
721 | cam->framebuf + | |
722 | frame * VICAM_MAX_FRAME_SIZE ); | |
723 | ||
724 | break; | |
725 | } | |
726 | ||
727 | /* pointless to implement overlay with this camera */ | |
728 | case VIDIOCCAPTURE: | |
729 | case VIDIOCGFBUF: | |
730 | case VIDIOCSFBUF: | |
731 | case VIDIOCKEY: | |
732 | retval = -EINVAL; | |
733 | break; | |
734 | ||
735 | /* tuner interface - we have none */ | |
736 | case VIDIOCGTUNER: | |
737 | case VIDIOCSTUNER: | |
738 | case VIDIOCGFREQ: | |
739 | case VIDIOCSFREQ: | |
740 | retval = -EINVAL; | |
741 | break; | |
742 | ||
743 | /* audio interface - we have none */ | |
744 | case VIDIOCGAUDIO: | |
745 | case VIDIOCSAUDIO: | |
746 | retval = -EINVAL; | |
747 | break; | |
748 | default: | |
749 | retval = -ENOIOCTLCMD; | |
750 | break; | |
751 | } | |
752 | ||
753 | return retval; | |
754 | } | |
755 | ||
756 | static int | |
757 | vicam_open(struct inode *inode, struct file *file) | |
758 | { | |
759 | struct video_device *dev = video_devdata(file); | |
760 | struct vicam_camera *cam = | |
761 | (struct vicam_camera *) dev->priv; | |
762 | DBG("open\n"); | |
763 | ||
764 | if (!cam) { | |
765 | printk(KERN_ERR | |
766 | "vicam video_device improperly initialized"); | |
767 | } | |
768 | ||
769 | /* the videodev_lock held above us protects us from | |
770 | * simultaneous opens...for now. we probably shouldn't | |
771 | * rely on this fact forever. | |
772 | */ | |
773 | ||
774 | if (cam->open_count > 0) { | |
775 | printk(KERN_INFO | |
776 | "vicam_open called on already opened camera"); | |
777 | return -EBUSY; | |
778 | } | |
779 | ||
780 | cam->raw_image = kmalloc(VICAM_MAX_READ_SIZE, GFP_KERNEL); | |
781 | if (!cam->raw_image) { | |
782 | return -ENOMEM; | |
783 | } | |
784 | ||
785 | cam->framebuf = rvmalloc(VICAM_MAX_FRAME_SIZE * VICAM_FRAMES); | |
786 | if (!cam->framebuf) { | |
787 | kfree(cam->raw_image); | |
788 | return -ENOMEM; | |
789 | } | |
790 | ||
791 | cam->cntrlbuf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
792 | if (!cam->cntrlbuf) { | |
793 | kfree(cam->raw_image); | |
794 | rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES); | |
795 | return -ENOMEM; | |
796 | } | |
797 | ||
798 | // First upload firmware, then turn the camera on | |
799 | ||
800 | if (!cam->is_initialized) { | |
801 | initialize_camera(cam); | |
802 | ||
803 | cam->is_initialized = 1; | |
804 | } | |
805 | ||
806 | set_camera_power(cam, 1); | |
807 | ||
808 | cam->needsDummyRead = 1; | |
809 | cam->open_count++; | |
810 | ||
811 | file->private_data = cam; | |
812 | ||
813 | return 0; | |
814 | } | |
815 | ||
816 | static int | |
817 | vicam_close(struct inode *inode, struct file *file) | |
818 | { | |
819 | struct vicam_camera *cam = file->private_data; | |
820 | int open_count; | |
821 | struct usb_device *udev; | |
822 | ||
823 | DBG("close\n"); | |
824 | ||
825 | /* it's not the end of the world if | |
826 | * we fail to turn the camera off. | |
827 | */ | |
828 | ||
829 | set_camera_power(cam, 0); | |
830 | ||
831 | kfree(cam->raw_image); | |
832 | rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES); | |
833 | kfree(cam->cntrlbuf); | |
834 | ||
4186ecf8 | 835 | mutex_lock(&cam->cam_lock); |
1da177e4 LT |
836 | |
837 | cam->open_count--; | |
838 | open_count = cam->open_count; | |
839 | udev = cam->udev; | |
840 | ||
4186ecf8 | 841 | mutex_unlock(&cam->cam_lock); |
1da177e4 LT |
842 | |
843 | if (!open_count && !udev) { | |
844 | kfree(cam); | |
845 | } | |
846 | ||
847 | return 0; | |
848 | } | |
849 | ||
850 | static void vicam_decode_color(const u8 *data, u8 *rgb) | |
851 | { | |
852 | /* vicam_decode_color - Convert from Vicam Y-Cr-Cb to RGB | |
853 | * Copyright (C) 2002 Monroe Williams (monroe@pobox.com) | |
854 | */ | |
855 | ||
856 | int i, prevY, nextY; | |
857 | ||
858 | prevY = 512; | |
859 | nextY = 512; | |
860 | ||
861 | data += VICAM_HEADER_SIZE; | |
862 | ||
863 | for( i = 0; i < 240; i++, data += 512 ) { | |
864 | const int y = ( i * 242 ) / 240; | |
865 | ||
866 | int j, prevX, nextX; | |
867 | int Y, Cr, Cb; | |
868 | ||
869 | if ( y == 242 - 1 ) { | |
870 | nextY = -512; | |
871 | } | |
872 | ||
873 | prevX = 1; | |
874 | nextX = 1; | |
875 | ||
876 | for ( j = 0; j < 320; j++, rgb += 3 ) { | |
877 | const int x = ( j * 512 ) / 320; | |
878 | const u8 * const src = &data[x]; | |
879 | ||
880 | if ( x == 512 - 1 ) { | |
881 | nextX = -1; | |
882 | } | |
883 | ||
884 | Cr = ( src[prevX] - src[0] ) + | |
885 | ( src[nextX] - src[0] ); | |
886 | Cr /= 2; | |
887 | ||
888 | Cb = ( src[prevY] - src[prevX + prevY] ) + | |
889 | ( src[prevY] - src[nextX + prevY] ) + | |
890 | ( src[nextY] - src[prevX + nextY] ) + | |
891 | ( src[nextY] - src[nextX + nextY] ); | |
892 | Cb /= 4; | |
893 | ||
894 | Y = 1160 * ( src[0] + ( Cr / 2 ) - 16 ); | |
895 | ||
896 | if ( i & 1 ) { | |
897 | int Ct = Cr; | |
898 | Cr = Cb; | |
899 | Cb = Ct; | |
900 | } | |
901 | ||
902 | if ( ( x ^ i ) & 1 ) { | |
903 | Cr = -Cr; | |
904 | Cb = -Cb; | |
905 | } | |
906 | ||
907 | rgb[0] = clamp( ( ( Y + ( 2017 * Cb ) ) + | |
908 | 500 ) / 900, 0, 255 ); | |
909 | rgb[1] = clamp( ( ( Y - ( 392 * Cb ) - | |
910 | ( 813 * Cr ) ) + | |
911 | 500 ) / 1000, 0, 255 ); | |
912 | rgb[2] = clamp( ( ( Y + ( 1594 * Cr ) ) + | |
913 | 500 ) / 1300, 0, 255 ); | |
914 | ||
915 | prevX = -1; | |
916 | } | |
917 | ||
918 | prevY = -512; | |
919 | } | |
920 | } | |
921 | ||
922 | static void | |
923 | read_frame(struct vicam_camera *cam, int framenum) | |
924 | { | |
925 | unsigned char *request = cam->cntrlbuf; | |
926 | int realShutter; | |
927 | int n; | |
928 | int actual_length; | |
929 | ||
930 | if (cam->needsDummyRead) { | |
931 | cam->needsDummyRead = 0; | |
932 | read_frame(cam, framenum); | |
933 | } | |
934 | ||
935 | memset(request, 0, 16); | |
936 | request[0] = cam->gain; // 0 = 0% gain, FF = 100% gain | |
937 | ||
938 | request[1] = 0; // 512x242 capture | |
939 | ||
940 | request[2] = 0x90; // the function of these two bytes | |
941 | request[3] = 0x07; // is not yet understood | |
942 | ||
943 | if (cam->shutter_speed > 60) { | |
944 | // Short exposure | |
945 | realShutter = | |
946 | ((-15631900 / cam->shutter_speed) + 260533) / 1000; | |
947 | request[4] = realShutter & 0xFF; | |
948 | request[5] = (realShutter >> 8) & 0xFF; | |
949 | request[6] = 0x03; | |
950 | request[7] = 0x01; | |
951 | } else { | |
952 | // Long exposure | |
953 | realShutter = 15600 / cam->shutter_speed - 1; | |
954 | request[4] = 0; | |
955 | request[5] = 0; | |
956 | request[6] = realShutter & 0xFF; | |
957 | request[7] = realShutter >> 8; | |
958 | } | |
959 |