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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 | |
81409ed0 | 10 | * Supports Compro PS39U WebCam |
1da177e4 LT |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | * | |
26 | * This source code is based heavily on the CPiA webcam driver which was | |
27 | * written by Peter Pregler, Scott J. Bertin and Johannes Erdfelt | |
28 | * | |
29 | * Portions of this code were also copied from usbvideo.c | |
30 | * | |
59c51591 | 31 | * Special thanks to the whole team at Sourceforge for help making |
1da177e4 LT |
32 | * this driver become a reality. Notably: |
33 | * Andy Armstrong who reverse engineered the color encoding and | |
34 | * Pavel Machek and Chris Cheney who worked on reverse engineering the | |
35 | * camera controls and wrote the first generation driver. | |
36 | */ | |
37 | ||
38 | #include <linux/kernel.h> | |
39 | #include <linux/module.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/videodev.h> | |
42 | #include <linux/usb.h> | |
43 | #include <linux/vmalloc.h> | |
44 | #include <linux/slab.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 | |
81409ed0 BB |
63 | #define USB_COMPRO_VENDOR_ID 0x0602 |
64 | #define USB_COMPRO_PRODUCT_ID 0x1001 | |
1da177e4 LT |
65 | |
66 | #define VICAM_BYTES_PER_PIXEL 3 | |
67 | #define VICAM_MAX_READ_SIZE (512*242+128) | |
68 | #define VICAM_MAX_FRAME_SIZE (VICAM_BYTES_PER_PIXEL*320*240) | |
69 | #define VICAM_FRAMES 2 | |
70 | ||
71 | #define VICAM_HEADER_SIZE 64 | |
72 | ||
73 | #define clamp( x, l, h ) max_t( __typeof__( x ), \ | |
d56410e0 MCC |
74 | ( l ), \ |
75 | min_t( __typeof__( x ), \ | |
76 | ( h ), \ | |
77 | ( x ) ) ) | |
1da177e4 LT |
78 | |
79 | /* Not sure what all the bytes in these char | |
80 | * arrays do, but they're necessary to make | |
81 | * the camera work. | |
82 | */ | |
83 | ||
84 | static unsigned char setup1[] = { | |
85 | 0xB6, 0xC3, 0x1F, 0x00, 0x02, 0x64, 0xE7, 0x67, | |
86 | 0xFD, 0xFF, 0x0E, 0xC0, 0xE7, 0x09, 0xDE, 0x00, | |
87 | 0x8E, 0x00, 0xC0, 0x09, 0x40, 0x03, 0xC0, 0x17, | |
88 | 0x44, 0x03, 0x4B, 0xAF, 0xC0, 0x07, 0x00, 0x00, | |
89 | 0x4B, 0xAF, 0x97, 0xCF, 0x00, 0x00 | |
90 | }; | |
91 | ||
92 | static unsigned char setup2[] = { | |
93 | 0xB6, 0xC3, 0x03, 0x00, 0x03, 0x64, 0x18, 0x00, | |
94 | 0x00, 0x00 | |
95 | }; | |
96 | ||
97 | static unsigned char setup3[] = { | |
98 | 0xB6, 0xC3, 0x01, 0x00, 0x06, 0x64, 0x00, 0x00 | |
99 | }; | |
100 | ||
101 | static unsigned char setup4[] = { | |
102 | 0xB6, 0xC3, 0x8F, 0x06, 0x02, 0x64, 0xE7, 0x07, | |
103 | 0x00, 0x00, 0x08, 0xC0, 0xE7, 0x07, 0x00, 0x00, | |
104 | 0x3E, 0xC0, 0xE7, 0x07, 0x54, 0x01, 0xAA, 0x00, | |
105 | 0xE7, 0x07, 0xC8, 0x05, 0xB6, 0x00, 0xE7, 0x07, | |
106 | 0x42, 0x01, 0xD2, 0x00, 0xE7, 0x07, 0x7C, 0x00, | |
107 | 0x16, 0x00, 0xE7, 0x07, 0x56, 0x00, 0x18, 0x00, | |
108 | 0xE7, 0x07, 0x06, 0x00, 0x92, 0xC0, 0xE7, 0x07, | |
109 | 0x00, 0x00, 0x1E, 0xC0, 0xE7, 0x07, 0xFF, 0xFF, | |
110 | 0x22, 0xC0, 0xE7, 0x07, 0x04, 0x00, 0x24, 0xC0, | |
111 | 0xE7, 0x07, 0xEC, 0x27, 0x28, 0xC0, 0xE7, 0x07, | |
112 | 0x16, 0x01, 0x8E, 0x00, 0xE7, 0x87, 0x01, 0x00, | |
113 | 0x0E, 0xC0, 0x97, 0xCF, 0xD7, 0x09, 0x00, 0xC0, | |
114 | 0xE7, 0x77, 0x01, 0x00, 0x92, 0xC0, 0x09, 0xC1, | |
115 | 0xE7, 0x09, 0xFE, 0x05, 0x24, 0x01, 0xE7, 0x09, | |
116 | 0x04, 0x06, 0x26, 0x01, 0xE7, 0x07, 0x07, 0x00, | |
117 | 0x92, 0xC0, 0xE7, 0x05, 0x00, 0xC0, 0xC0, 0xDF, | |
118 | 0x97, 0xCF, 0x17, 0x00, 0x57, 0x00, 0x17, 0x02, | |
119 | 0xD7, 0x09, 0x00, 0xC0, 0xE7, 0x77, 0x01, 0x00, | |
120 | 0x92, 0xC0, 0x0A, 0xC1, 0xE7, 0x57, 0xFF, 0xFF, | |
121 | 0xFA, 0x05, 0x0D, 0xC0, 0xE7, 0x57, 0x00, 0x00, | |
122 | 0xFA, 0x05, 0x0F, 0xC0, 0x9F, 0xAF, 0xC6, 0x00, | |
123 | 0xE7, 0x05, 0x00, 0xC0, 0xC8, 0x05, 0xC1, 0x05, | |
124 | 0xC0, 0x05, 0xC0, 0xDF, 0x97, 0xCF, 0x27, 0xDA, | |
125 | 0xFA, 0x05, 0xEF, 0x07, 0x01, 0x00, 0x0B, 0x06, | |
126 | 0x73, 0xCF, 0x9F, 0xAF, 0x78, 0x01, 0x9F, 0xAF, | |
127 | 0x1A, 0x03, 0x6E, 0xCF, 0xE7, 0x09, 0xFC, 0x05, | |
128 | 0x24, 0x01, 0xE7, 0x09, 0x02, 0x06, 0x26, 0x01, | |
129 | 0xE7, 0x07, 0x07, 0x00, 0x92, 0xC0, 0xE7, 0x09, | |
130 | 0xFC, 0x05, 0xFE, 0x05, 0xE7, 0x09, 0x02, 0x06, | |
131 | 0x04, 0x06, 0xE7, 0x09, 0x00, 0x06, 0xFC, 0x05, | |
132 | 0xE7, 0x09, 0xFE, 0x05, 0x00, 0x06, 0x27, 0xDA, | |
133 | 0xFA, 0x05, 0xE7, 0x57, 0x01, 0x00, 0xFA, 0x05, | |
134 | 0x02, 0xCA, 0x04, 0xC0, 0x97, 0xCF, 0x9F, 0xAF, | |
135 | 0x66, 0x05, 0x97, 0xCF, 0xE7, 0x07, 0x40, 0x00, | |
136 | 0x02, 0x06, 0xC8, 0x09, 0xFC, 0x05, 0x9F, 0xAF, | |
137 | 0xDA, 0x02, 0x97, 0xCF, 0xCF, 0x17, 0x02, 0x00, | |
138 | 0xEF, 0x57, 0x81, 0x00, 0x09, 0x06, 0x9F, 0xA0, | |
139 | 0xB6, 0x01, 0xEF, 0x57, 0x80, 0x00, 0x09, 0x06, | |
140 | 0x9F, 0xA0, 0x40, 0x02, 0xEF, 0x57, 0x01, 0x00, | |
141 | 0x0B, 0x06, 0x9F, 0xA0, 0x46, 0x03, 0xE7, 0x07, | |
142 | 0x01, 0x00, 0x0A, 0xC0, 0x46, 0xAF, 0x47, 0xAF, | |
143 | 0x9F, 0xAF, 0x40, 0x02, 0xE7, 0x07, 0x2E, 0x00, | |
144 | 0x0A, 0xC0, 0xEF, 0x87, 0x80, 0x00, 0x09, 0x06, | |
145 | 0x97, 0xCF, 0x00, 0x0E, 0x01, 0x00, 0xC0, 0x57, | |
146 | 0x51, 0x00, 0x9F, 0xC0, 0x9E, 0x02, 0xC0, 0x57, | |
147 | 0x50, 0x00, 0x20, 0xC0, 0xC0, 0x57, 0x55, 0x00, | |
148 | 0x12, 0xC0, 0xC0, 0x57, 0x56, 0x00, 0x9F, 0xC0, | |
149 | 0x72, 0x02, 0x9F, 0xCF, 0xD6, 0x02, 0xC1, 0x0B, | |
150 | 0x08, 0x06, 0x01, 0xD0, 0x6F, 0x90, 0x08, 0x06, | |
151 | 0xC0, 0x07, 0x08, 0x00, 0xC1, 0x0B, 0x08, 0x06, | |
152 | 0x9F, 0xAF, 0x28, 0x05, 0x97, 0xCF, 0x2F, 0x0E, | |
153 | 0x02, 0x00, 0x08, 0x06, 0xC0, 0x07, 0x08, 0x00, | |
154 | 0xC1, 0x0B, 0x08, 0x06, 0x9F, 0xAF, 0x28, 0x05, | |
155 | 0x9F, 0xCF, 0xD6, 0x02, 0x2F, 0x0E, 0x02, 0x00, | |
156 | 0x09, 0x06, 0xEF, 0x87, 0x80, 0x00, 0x09, 0x06, | |
157 | 0x9F, 0xCF, 0xD6, 0x02, 0xEF, 0x67, 0x7F, 0xFF, | |
158 | 0x09, 0x06, 0xE7, 0x67, 0xFF, 0xFD, 0x22, 0xC0, | |
159 | 0xE7, 0x67, 0xEF, 0xFF, 0x24, 0xC0, 0xE7, 0x87, | |
160 | 0x10, 0x00, 0x28, 0xC0, 0x9F, 0xAF, 0xB8, 0x05, | |
161 | 0xE7, 0x87, 0xE0, 0x21, 0x24, 0xC0, 0x9F, 0xAF, | |
162 | 0xA8, 0x05, 0xE7, 0x87, 0x08, 0x00, 0x24, 0xC0, | |
163 | 0xE7, 0x67, 0xDF, 0xFF, 0x24, 0xC0, 0xC8, 0x07, | |
164 | 0x0A, 0x00, 0xC0, 0x07, 0x00, 0x00, 0xC1, 0x07, | |
165 | 0x01, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0x9F, 0xAF, | |
166 | 0xB8, 0x05, 0xC0, 0x07, 0x9E, 0x00, 0x9F, 0xAF, | |
167 | 0x44, 0x05, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0, | |
168 | 0xC0, 0x09, 0x20, 0xC0, 0xE7, 0x87, 0x00, 0x01, | |
169 | 0x24, 0xC0, 0xC0, 0x77, 0x00, 0x02, 0x0F, 0xC1, | |
170 | 0xE7, 0x67, 0xF7, 0xFF, 0x24, 0xC0, 0xE7, 0x67, | |
171 | 0xF7, 0xFF, 0x24, 0xC0, 0xE7, 0x87, 0x08, 0x00, | |
172 | 0x24, 0xC0, 0x08, 0xDA, 0x5E, 0xC1, 0xEF, 0x07, | |
173 | 0x80, 0x00, 0x09, 0x06, 0x97, 0xCF, 0xEF, 0x07, | |
174 | 0x01, 0x00, 0x0A, 0x06, 0x97, 0xCF, 0xEF, 0x07, | |
175 | 0x00, 0x00, 0x0B, 0x06, 0xEF, 0x07, 0x00, 0x00, | |
176 | 0x0A, 0x06, 0xEF, 0x67, 0x7F, 0xFF, 0x09, 0x06, | |
177 | 0xEF, 0x07, 0x00, 0x00, 0x0D, 0x06, 0xE7, 0x67, | |
178 | 0xEF, 0xFF, 0x28, 0xC0, 0xE7, 0x67, 0x17, 0xD8, | |
179 | 0x24, 0xC0, 0xE7, 0x07, 0x00, 0x00, 0x1E, 0xC0, | |
180 | 0xE7, 0x07, 0xFF, 0xFF, 0x22, 0xC0, 0x97, 0xCF, | |
181 | 0xC8, 0x07, 0x0E, 0x06, 0x9F, 0xAF, 0xDA, 0x02, | |
182 | 0xE7, 0x07, 0x00, 0x00, 0xF2, 0x05, 0xE7, 0x07, | |
183 | 0x10, 0x00, 0xF6, 0x05, 0xE7, 0x07, 0x0E, 0x06, | |
184 | 0xF4, 0x05, 0xE7, 0x07, 0xD6, 0x02, 0xF8, 0x05, | |
185 | 0xC8, 0x07, 0xF2, 0x05, 0xC1, 0x07, 0x00, 0x80, | |
186 | 0x50, 0xAF, 0x97, 0xCF, 0x2F, 0x0C, 0x02, 0x00, | |
187 | 0x07, 0x06, 0x2F, 0x0C, 0x04, 0x00, 0x06, 0x06, | |
188 | 0xE7, 0x07, 0x00, 0x00, 0xF2, 0x05, 0xE7, 0x07, | |
189 | 0x10, 0x00, 0xF6, 0x05, 0xE7, 0x07, 0xE2, 0x05, | |
190 | 0xF4, 0x05, 0xE7, 0x07, 0xCE, 0x02, 0xF8, 0x05, | |
191 | 0xC8, 0x07, 0xF2, 0x05, 0xC1, 0x07, 0x00, 0x80, | |
192 | 0x51, 0xAF, 0x97, 0xCF, 0x9F, 0xAF, 0x66, 0x04, | |
193 | 0x9F, 0xAF, 0x1A, 0x03, 0x59, 0xAF, 0x97, 0xCF, | |
194 | 0xC0, 0x07, 0x0E, 0x00, 0xC1, 0x0B, 0x0C, 0x06, | |
195 | 0x41, 0xD1, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, | |
196 | 0x3C, 0x00, 0x9F, 0xAF, 0x44, 0x05, 0x68, 0x00, | |
197 | 0xC0, 0x07, 0x3B, 0x00, 0x9F, 0xAF, 0x44, 0x05, | |
198 | 0x6F, 0x00, 0x0C, 0x06, 0x68, 0x00, 0xE0, 0x07, | |
199 | 0x04, 0x01, 0xE8, 0x0B, 0x0A, 0x06, 0xE8, 0x07, | |
200 | 0x00, 0x00, 0xE0, 0x07, 0x00, 0x02, 0xE0, 0x07, | |
201 | 0xEC, 0x01, 0xE0, 0x07, 0xFC, 0xFF, 0x97, 0xCF, | |
202 | 0xE7, 0x07, 0xFF, 0xFF, 0xFA, 0x05, 0xEF, 0x07, | |
203 | 0x00, 0x00, 0x0B, 0x06, 0xE7, 0x07, 0x0E, 0x06, | |
204 | 0x24, 0x01, 0xE7, 0x07, 0x0E, 0x06, 0xFE, 0x05, | |
205 | 0xE7, 0x07, 0x40, 0x00, 0x26, 0x01, 0xE7, 0x07, | |
206 | 0x40, 0x00, 0x04, 0x06, 0xE7, 0x07, 0x07, 0x00, | |
207 | 0x92, 0xC0, 0x97, 0xCF, 0xEF, 0x07, 0x02, 0x00, | |
208 | 0x0B, 0x06, 0x9F, 0xAF, 0x78, 0x01, 0xEF, 0x77, | |
209 | 0x80, 0x00, 0x07, 0x06, 0x9F, 0xC0, 0x14, 0x04, | |
210 | 0xEF, 0x77, 0x01, 0x00, 0x07, 0x06, 0x37, 0xC0, | |
211 | 0xEF, 0x77, 0x01, 0x00, 0x0D, 0x06, 0x0F, 0xC1, | |
212 | 0xEF, 0x07, 0x01, 0x00, 0x0D, 0x06, 0xC0, 0x07, | |
213 | 0x02, 0x00, 0xC1, 0x07, 0x30, 0x00, 0x9F, 0xAF, | |
214 | 0x28, 0x05, 0xC0, 0x07, 0x01, 0x00, 0xC1, 0x07, | |
215 | 0x02, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0xC8, 0x07, | |
216 | 0xFF, 0x4F, 0x9F, 0xAF, 0xA8, 0x05, 0xC0, 0x07, | |
217 | 0x38, 0x00, 0x9F, 0xAF, 0x44, 0x05, 0xC1, 0x77, | |
218 | 0x03, 0x00, 0x02, 0xC1, 0x08, 0xDA, 0x75, 0xC1, | |
219 | 0xC1, 0x77, 0x01, 0x00, 0x0A, 0xC1, 0xC0, 0x07, | |
220 | 0x01, 0x00, 0xC1, 0x07, 0x02, 0x00, 0x9F, 0xAF, | |
221 | 0x28, 0x05, 0xEF, 0x07, 0x01, 0x00, 0x06, 0x06, | |
222 | 0x2C, 0xCF, 0xC0, 0x07, 0x01, 0x00, 0xC1, 0x07, | |
223 | 0x04, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0xEF, 0x07, | |
224 | 0x00, 0x00, 0x06, 0x06, 0x22, 0xCF, 0xEF, 0x07, | |
225 | 0x00, 0x00, 0x0D, 0x06, 0xEF, 0x57, 0x01, 0x00, | |
226 | 0x06, 0x06, 0x1B, 0xC0, 0xC0, 0x07, 0x01, 0x00, | |
227 | 0xC1, 0x07, 0x01, 0x00, 0x9F, 0xAF, 0x28, 0x05, | |
228 | 0xC0, 0x07, 0x02, 0x00, 0xC1, 0x07, 0x30, 0x00, | |
229 | 0x9F, 0xAF, 0x28, 0x05, 0xC8, 0x07, 0xFF, 0x4F, | |
230 | 0x9F, 0xAF, 0xA8, 0x05, 0xC0, 0x07, 0x38, 0x00, | |
231 | 0x9F, 0xAF, 0x44, 0x05, 0xC1, 0x67, 0x03, 0x00, | |
232 | 0xC1, 0x57, 0x03, 0x00, 0x02, 0xC0, 0x08, 0xDA, | |
233 | 0x73, 0xC1, 0xC0, 0x07, 0x02, 0x00, 0xC1, 0x07, | |
234 | 0x12, 0x00, 0xEF, 0x57, 0x00, 0x00, 0x06, 0x06, | |
235 | 0x02, 0xC0, 0xC1, 0x07, 0x23, 0x00, 0x9F, 0xAF, | |
236 | 0x28, 0x05, 0xC0, 0x07, 0x14, 0x00, 0xC1, 0x0B, | |
237 | 0xEA, 0x05, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, | |
238 | 0x3E, 0x00, 0x9F, 0xAF, 0x0A, 0x05, 0xE7, 0x09, | |
239 | 0xE4, 0x05, 0xFA, 0x05, 0x27, 0xD8, 0xFA, 0x05, | |
240 | 0xE7, 0x07, 0x0E, 0x06, 0xFC, 0x05, 0xE7, 0x07, | |
241 | 0x4E, 0x06, 0x00, 0x06, 0xE7, 0x07, 0x40, 0x00, | |
242 | 0x02, 0x06, 0x9F, 0xAF, 0x66, 0x05, 0x9F, 0xAF, | |
243 | 0xC6, 0x00, 0x97, 0xCF, 0xC1, 0x0B, 0xE2, 0x05, | |
244 | 0x41, 0xD0, 0x01, 0xD2, 0xC1, 0x17, 0x23, 0x00, | |
245 | 0x9F, 0xAF, 0xDC, 0x04, 0xC0, 0x07, 0x04, 0x00, | |
246 | 0xC1, 0x0B, 0xE3, 0x05, 0x9F, 0xAF, 0x28, 0x05, | |
247 | 0xC0, 0x07, 0x06, 0x00, 0xC1, 0x09, 0xE6, 0x05, | |
248 | 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x07, 0x00, | |
249 | 0xC1, 0x09, 0xE6, 0x05, 0xC1, 0xD1, 0x9F, 0xAF, | |
250 | 0x28, 0x05, 0xC0, 0x07, 0x0B, 0x00, 0xC1, 0x09, | |
251 | 0xE8, 0x05, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, | |
252 | 0x0C, 0x00, 0xC1, 0x09, 0xE8, 0x05, 0xC1, 0xD1, | |
253 | 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x0D, 0x00, | |
254 | 0xC1, 0x07, 0x09, 0x00, 0x9F, 0xAF, 0x28, 0x05, | |
255 | 0xC0, 0x07, 0x03, 0x00, 0xC1, 0x07, 0x32, 0x00, | |
256 | 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x0F, 0x00, | |
257 | 0xC1, 0x07, 0x00, 0x00, 0x9F, 0xAF, 0x28, 0x05, | |
258 | 0x97, 0xCF, 0xE7, 0x67, 0xFF, 0xD9, 0x24, 0xC0, | |
259 | 0xC8, 0x07, 0x0A, 0x00, 0x40, 0x00, 0xC0, 0x67, | |
260 | 0x00, 0x02, 0x27, 0x80, 0x24, 0xC0, 0xE7, 0x87, | |
261 | 0x00, 0x04, 0x24, 0xC0, 0xE7, 0x67, 0xFF, 0xF9, | |
262 | 0x24, 0xC0, 0x01, 0xD2, 0x08, 0xDA, 0x72, 0xC1, | |
263 | 0xE7, 0x87, 0x00, 0x20, 0x24, 0xC0, 0x97, 0xCF, | |
264 | 0x27, 0x00, 0x1E, 0xC0, 0xE7, 0x87, 0xFF, 0x00, | |
265 | 0x22, 0xC0, 0xE7, 0x67, 0x7F, 0xFF, 0x24, 0xC0, | |
266 | 0xE7, 0x87, 0x80, 0x00, 0x24, 0xC0, 0xE7, 0x87, | |
267 | 0x80, 0x00, 0x24, 0xC0, 0x97, 0xCF, 0x9F, 0xAF, | |
268 | 0x0A, 0x05, 0x67, 0x00, 0x1E, 0xC0, 0xE7, 0x67, | |
269 | 0xBF, 0xFF, 0x24, 0xC0, 0xE7, 0x87, 0x40, 0x00, | |
270 | 0x24, 0xC0, 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0, | |
271 | 0x97, 0xCF, 0x9F, 0xAF, 0x0A, 0x05, 0xE7, 0x67, | |
272 | 0x00, 0xFF, 0x22, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, | |
273 | 0x24, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0, | |
274 | 0xC1, 0x09, 0x20, 0xC0, 0xE7, 0x87, 0x00, 0x01, | |
275 | 0x24, 0xC0, 0x97, 0xCF, 0xC0, 0x07, 0x40, 0x00, | |
276 | 0xC8, 0x09, 0xFC, 0x05, 0xE7, 0x67, 0x00, 0xFF, | |
277 | 0x22, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0, | |
278 | 0xE7, 0x67, 0xBF, 0xFF, 0x24, 0xC0, 0xE7, 0x67, | |
279 | 0xBF, 0xFF, 0x24, 0xC0, 0x00, 0xDA, 0xE8, 0x09, | |
280 | 0x20, 0xC0, 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0, | |
281 | 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0, 0x00, 0xDA, | |
282 | 0xE8, 0x09, 0x20, 0xC0, 0x6D, 0xC1, 0xE7, 0x87, | |
283 | 0x00, 0x01, 0x24, 0xC0, 0x97, 0xCF, 0xE7, 0x07, | |
284 | 0x32, 0x00, 0x12, 0xC0, 0xE7, 0x77, 0x00, 0x80, | |
285 | 0x12, 0xC0, 0x7C, 0xC0, 0x97, 0xCF, 0xE7, 0x07, | |
286 | 0x20, 0x4E, 0x12, 0xC0, 0xE7, 0x77, 0x00, 0x80, | |
287 | 0x12, 0xC0, 0x7C, 0xC0, 0x97, 0xCF, 0x09, 0x02, | |
288 | 0x19, 0x00, 0x01, 0x01, 0x00, 0x80, 0x96, 0x09, | |
289 | 0x04, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, | |
290 | 0x07, 0x05, 0x81, 0x02, 0x40, 0x00, 0x00, 0x00, | |
291 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
292 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
293 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
294 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
295 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
296 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
297 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
298 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
299 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
300 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
301 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
302 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
303 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
304 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
305 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
306 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
307 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
308 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
309 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
310 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
311 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
312 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
313 | }; | |
314 | ||
315 | static unsigned char setup5[] = { | |
316 | 0xB6, 0xC3, 0x2F, 0x01, 0x03, 0x64, 0x0E, 0x00, | |
317 | 0x14, 0x00, 0x1A, 0x00, 0x20, 0x00, 0x26, 0x00, | |
318 | 0x4A, 0x00, 0x64, 0x00, 0x6A, 0x00, 0x92, 0x00, | |
319 | 0x9A, 0x00, 0xA0, 0x00, 0xB2, 0x00, 0xB8, 0x00, | |
320 | 0xBE, 0x00, 0xC2, 0x00, 0xC8, 0x00, 0xCE, 0x00, | |
321 | 0xDC, 0x00, 0xDA, 0x00, 0xE2, 0x00, 0xE0, 0x00, | |
322 | 0xE8, 0x00, 0xE6, 0x00, 0xEE, 0x00, 0xEC, 0x00, | |
323 | 0xF2, 0x00, 0xF8, 0x00, 0x02, 0x01, 0x0A, 0x01, | |
324 | 0x0E, 0x01, 0x12, 0x01, 0x1E, 0x01, 0x22, 0x01, | |
325 | 0x28, 0x01, 0x2C, 0x01, 0x32, 0x01, 0x36, 0x01, | |
326 | 0x44, 0x01, 0x50, 0x01, 0x5E, 0x01, 0x72, 0x01, | |
327 | 0x76, 0x01, 0x7A, 0x01, 0x80, 0x01, 0x88, 0x01, | |
328 | 0x8C, 0x01, 0x94, 0x01, 0x9C, 0x01, 0xA0, 0x01, | |
329 | 0xA4, 0x01, 0xAA, 0x01, 0xB0, 0x01, 0xB4, 0x01, | |
330 | 0xBA, 0x01, 0xD0, 0x01, 0xDA, 0x01, 0xF6, 0x01, | |
331 | 0xFA, 0x01, 0x02, 0x02, 0x34, 0x02, 0x3C, 0x02, | |
332 | 0x44, 0x02, 0x4A, 0x02, 0x50, 0x02, 0x56, 0x02, | |
333 | 0x74, 0x02, 0x78, 0x02, 0x7E, 0x02, 0x84, 0x02, | |
334 | 0x8A, 0x02, 0x88, 0x02, 0x90, 0x02, 0x8E, 0x02, | |
335 | 0x94, 0x02, 0xA2, 0x02, 0xA8, 0x02, 0xAE, 0x02, | |
336 | 0xB4, 0x02, 0xBA, 0x02, 0xB8, 0x02, 0xC0, 0x02, | |
337 | 0xBE, 0x02, 0xC4, 0x02, 0xD0, 0x02, 0xD4, 0x02, | |
338 | 0xE0, 0x02, 0xE6, 0x02, 0xEE, 0x02, 0xF8, 0x02, | |
339 | 0xFC, 0x02, 0x06, 0x03, 0x1E, 0x03, 0x24, 0x03, | |
340 | 0x28, 0x03, 0x30, 0x03, 0x2E, 0x03, 0x3C, 0x03, | |
341 | 0x4A, 0x03, 0x4E, 0x03, 0x54, 0x03, 0x58, 0x03, | |
342 | 0x5E, 0x03, 0x66, 0x03, 0x6E, 0x03, 0x7A, 0x03, | |
343 | 0x86, 0x03, 0x8E, 0x03, 0x96, 0x03, 0xB2, 0x03, | |
344 | 0xB8, 0x03, 0xC6, 0x03, 0xCC, 0x03, 0xD4, 0x03, | |
345 | 0xDA, 0x03, 0xE8, 0x03, 0xF4, 0x03, 0xFC, 0x03, | |
346 | 0x04, 0x04, 0x20, 0x04, 0x2A, 0x04, 0x32, 0x04, | |
347 | 0x36, 0x04, 0x3E, 0x04, 0x44, 0x04, 0x42, 0x04, | |
348 | 0x48, 0x04, 0x4E, 0x04, 0x4C, 0x04, 0x54, 0x04, | |
349 | 0x52, 0x04, 0x5A, 0x04, 0x5E, 0x04, 0x62, 0x04, | |
350 | 0x68, 0x04, 0x74, 0x04, 0x7C, 0x04, 0x80, 0x04, | |
351 | 0x88, 0x04, 0x8C, 0x04, 0x94, 0x04, 0x9A, 0x04, | |
352 | 0xA2, 0x04, 0xA6, 0x04, 0xAE, 0x04, 0xB4, 0x04, | |
353 | 0xC0, 0x04, 0xCC, 0x04, 0xD8, 0x04, 0x2A, 0x05, | |
354 | 0x46, 0x05, 0x6C, 0x05, 0x00, 0x00 | |
355 | }; | |
356 | ||
357 | /* rvmalloc / rvfree copied from usbvideo.c | |
358 | * | |
359 | * Not sure why these are not yet non-statics which I can reference through | |
360 | * usbvideo.h the same as it is in 2.4.20. I bet this will get fixed sometime | |
361 | * in the future. | |
d56410e0 | 362 | * |
1da177e4 LT |
363 | */ |
364 | static void *rvmalloc(unsigned long size) | |
365 | { | |
366 | void *mem; | |
367 | unsigned long adr; | |
368 | ||
369 | size = PAGE_ALIGN(size); | |
370 | mem = vmalloc_32(size); | |
371 | if (!mem) | |
372 | return NULL; | |
373 | ||
374 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
375 | adr = (unsigned long) mem; | |
376 | while (size > 0) { | |
377 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
378 | adr += PAGE_SIZE; | |
379 | size -= PAGE_SIZE; | |
380 | } | |
381 | ||
382 | return mem; | |
383 | } | |
384 | ||
385 | static void rvfree(void *mem, unsigned long size) | |
386 | { | |
387 | unsigned long adr; | |
388 | ||
389 | if (!mem) | |
390 | return; | |
391 | ||
392 | adr = (unsigned long) mem; | |
393 | while ((long) size > 0) { | |
394 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
395 | adr += PAGE_SIZE; | |
396 | size -= PAGE_SIZE; | |
397 | } | |
398 | vfree(mem); | |
399 | } | |
400 | ||
401 | struct vicam_camera { | |
402 | u16 shutter_speed; // capture shutter speed | |
403 | u16 gain; // capture gain | |
404 | ||
405 | u8 *raw_image; // raw data captured from the camera | |
406 | u8 *framebuf; // processed data in RGB24 format | |
407 | u8 *cntrlbuf; // area used to send control msgs | |
408 | ||
409 | struct video_device vdev; // v4l video device | |
410 | struct usb_device *udev; // usb device | |
411 | ||
412 | /* guard against simultaneous accesses to the camera */ | |
4186ecf8 | 413 | struct mutex cam_lock; |
1da177e4 LT |
414 | |
415 | int is_initialized; | |
416 | u8 open_count; | |
417 | u8 bulkEndpoint; | |
418 | int needsDummyRead; | |
1da177e4 LT |
419 | }; |
420 | ||
421 | static int vicam_probe( struct usb_interface *intf, const struct usb_device_id *id); | |
422 | static void vicam_disconnect(struct usb_interface *intf); | |
423 | static void read_frame(struct vicam_camera *cam, int framenum); | |
424 | static void vicam_decode_color(const u8 *, u8 *); | |
425 | ||
426 | static int __send_control_msg(struct vicam_camera *cam, | |
427 | u8 request, | |
428 | u16 value, | |
429 | u16 index, | |
430 | unsigned char *cp, | |
431 | u16 size) | |
432 | { | |
433 | int status; | |
434 | ||
435 | /* cp must be memory that has been allocated by kmalloc */ | |
436 | ||
437 | status = usb_control_msg(cam->udev, | |
438 | usb_sndctrlpipe(cam->udev, 0), | |
439 | request, | |
440 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
441 | USB_RECIP_DEVICE, value, index, | |
442 | cp, size, 1000); | |
443 | ||
444 | status = min(status, 0); | |
445 | ||
446 | if (status < 0) { | |
447 | printk(KERN_INFO "Failed sending control message, error %d.\n", | |
448 | status); | |
449 | } | |
450 | ||
451 | return status; | |
452 | } | |
453 | ||
454 | static int send_control_msg(struct vicam_camera *cam, | |
455 | u8 request, | |
456 | u16 value, | |
457 | u16 index, | |
458 | unsigned char *cp, | |
459 | u16 size) | |
460 | { | |
461 | int status = -ENODEV; | |
4186ecf8 | 462 | mutex_lock(&cam->cam_lock); |
1da177e4 LT |
463 | if (cam->udev) { |
464 | status = __send_control_msg(cam, request, value, | |
465 | index, cp, size); | |
466 | } | |
4186ecf8 | 467 | mutex_unlock(&cam->cam_lock); |
1da177e4 LT |
468 | return status; |
469 | } | |
470 | static int | |
471 | initialize_camera(struct vicam_camera *cam) | |
472 | { | |
473 | const struct { | |
474 | u8 *data; | |
475 | u32 size; | |
476 | } firmware[] = { | |
477 | { .data = setup1, .size = sizeof(setup1) }, | |
478 | { .data = setup2, .size = sizeof(setup2) }, | |
479 | { .data = setup3, .size = sizeof(setup3) }, | |
480 | { .data = setup4, .size = sizeof(setup4) }, | |
481 | { .data = setup5, .size = sizeof(setup5) }, | |
482 | { .data = setup3, .size = sizeof(setup3) }, | |
483 | { .data = NULL, .size = 0 } | |
484 | }; | |
485 | ||
486 | int err, i; | |
487 | ||
488 | for (i = 0, err = 0; firmware[i].data && !err; i++) { | |
489 | memcpy(cam->cntrlbuf, firmware[i].data, firmware[i].size); | |
490 | ||
491 | err = send_control_msg(cam, 0xff, 0, 0, | |
492 | cam->cntrlbuf, firmware[i].size); | |
493 | } | |
494 | ||
495 | return err; | |
496 | } | |
497 | ||
498 | static int | |
499 | set_camera_power(struct vicam_camera *cam, int state) | |
500 | { | |
501 | int status; | |
502 | ||
503 | if ((status = send_control_msg(cam, 0x50, state, 0, NULL, 0)) < 0) | |
504 | return status; | |
505 | ||
506 | if (state) { | |
507 | send_control_msg(cam, 0x55, 1, 0, NULL, 0); | |
508 | } | |
509 | ||
510 | return 0; | |
511 | } | |
512 | ||
513 | static int | |
514 | vicam_ioctl(struct inode *inode, struct file *file, unsigned int ioctlnr, unsigned long arg) | |
515 | { | |
516 | void __user *user_arg = (void __user *)arg; | |
517 | struct vicam_camera *cam = file->private_data; | |
518 | int retval = 0; | |
519 | ||
520 | if (!cam) | |
521 | return -ENODEV; | |
522 | ||
523 | switch (ioctlnr) { | |
524 | /* query capabilities */ | |
525 | case VIDIOCGCAP: | |
526 | { | |
527 | struct video_capability b; | |
528 | ||
529 | DBG("VIDIOCGCAP\n"); | |
530 | memset(&b, 0, sizeof(b)); | |
531 | strcpy(b.name, "ViCam-based Camera"); | |
532 | b.type = VID_TYPE_CAPTURE; | |
533 | b.channels = 1; | |
534 | b.audios = 0; | |
535 | b.maxwidth = 320; /* VIDEOSIZE_CIF */ | |
536 | b.maxheight = 240; | |
537 | b.minwidth = 320; /* VIDEOSIZE_48_48 */ | |
538 | b.minheight = 240; | |
539 | ||
540 | if (copy_to_user(user_arg, &b, sizeof(b))) | |
541 | retval = -EFAULT; | |
542 | ||
543 | break; | |
544 | } | |
545 | /* get/set video source - we are a camera and nothing else */ | |
546 | case VIDIOCGCHAN: | |
547 | { | |
548 | struct video_channel v; | |
549 | ||
550 | DBG("VIDIOCGCHAN\n"); | |
551 | if (copy_from_user(&v, user_arg, sizeof(v))) { | |
552 | retval = -EFAULT; | |
553 | break; | |
554 | } | |
555 | if (v.channel != 0) { | |
556 | retval = -EINVAL; | |
557 | break; | |
558 | } | |
559 | ||
560 | v.channel = 0; | |
561 | strcpy(v.name, "Camera"); | |
562 | v.tuners = 0; | |
563 | v.flags = 0; | |
564 | v.type = VIDEO_TYPE_CAMERA; | |
565 | v.norm = 0; | |
566 | ||
567 | if (copy_to_user(user_arg, &v, sizeof(v))) | |
568 | retval = -EFAULT; | |
569 | break; | |
570 | } | |
571 | ||
572 | case VIDIOCSCHAN: | |
573 | { | |
574 | int v; | |
575 | ||
576 | if (copy_from_user(&v, user_arg, sizeof(v))) | |
577 | retval = -EFAULT; | |
578 | DBG("VIDIOCSCHAN %d\n", v); | |
579 | ||
580 | if (retval == 0 && v != 0) | |
581 | retval = -EINVAL; | |
582 | ||
583 | break; | |
584 | } | |
585 | ||
586 | /* image properties */ | |
587 | case VIDIOCGPICT: | |
588 | { | |
589 | struct video_picture vp; | |
590 | DBG("VIDIOCGPICT\n"); | |
591 | memset(&vp, 0, sizeof (struct video_picture)); | |
592 | vp.brightness = cam->gain << 8; | |
593 | vp.depth = 24; | |
594 | vp.palette = VIDEO_PALETTE_RGB24; | |
595 | if (copy_to_user(user_arg, &vp, sizeof (struct video_picture))) | |
596 | retval = -EFAULT; | |
597 | break; | |
598 | } | |
599 | ||
600 | case VIDIOCSPICT: | |
601 | { | |
602 | struct video_picture vp; | |
d56410e0 | 603 | |
1da177e4 LT |
604 | if (copy_from_user(&vp, user_arg, sizeof(vp))) { |
605 | retval = -EFAULT; | |
606 | break; | |
607 | } | |
d56410e0 | 608 | |
1da177e4 LT |
609 | DBG("VIDIOCSPICT depth = %d, pal = %d\n", vp.depth, |
610 | vp.palette); | |
611 | ||
612 | cam->gain = vp.brightness >> 8; | |
613 | ||
614 | if (vp.depth != 24 | |
615 | || vp.palette != VIDEO_PALETTE_RGB24) | |
616 | retval = -EINVAL; | |
617 | ||
618 | break; | |
619 | } | |
620 | ||
621 | /* get/set capture window */ | |
622 | case VIDIOCGWIN: | |
623 | { | |
624 | struct video_window vw; | |
625 | vw.x = 0; | |
626 | vw.y = 0; | |
627 | vw.width = 320; | |
628 | vw.height = 240; | |
629 | vw.chromakey = 0; | |
630 | vw.flags = 0; | |
631 | vw.clips = NULL; | |
632 | vw.clipcount = 0; | |
633 | ||
634 | DBG("VIDIOCGWIN\n"); | |
635 | ||
636 | if (copy_to_user(user_arg, (void *)&vw, sizeof(vw))) | |
637 | retval = -EFAULT; | |
638 | ||
639 | // I'm not sure what the deal with a capture window is, it is very poorly described | |
640 | // in the doc. So I won't support it now. | |
641 | break; | |
642 | } | |
643 | ||
644 | case VIDIOCSWIN: | |
645 | { | |
646 | ||
647 | struct video_window vw; | |
648 | ||
649 | if (copy_from_user(&vw, user_arg, sizeof(vw))) { | |
650 | retval = -EFAULT; | |
651 | break; | |
652 | } | |
653 | ||
654 | DBG("VIDIOCSWIN %d x %d\n", vw.width, vw.height); | |
d56410e0 | 655 | |
1da177e4 LT |
656 | if ( vw.width != 320 || vw.height != 240 ) |
657 | retval = -EFAULT; | |
658 | ||
659 | break; | |
660 | } | |
661 | ||
662 | /* mmap interface */ | |
663 | case VIDIOCGMBUF: | |
664 | { | |
665 | struct video_mbuf vm; | |
666 | int i; | |
667 | ||
668 | DBG("VIDIOCGMBUF\n"); | |
669 | memset(&vm, 0, sizeof (vm)); | |
670 | vm.size = | |
671 | VICAM_MAX_FRAME_SIZE * VICAM_FRAMES; | |
672 | vm.frames = VICAM_FRAMES; | |
673 | for (i = 0; i < VICAM_FRAMES; i++) | |
674 | vm.offsets[i] = VICAM_MAX_FRAME_SIZE * i; | |
675 | ||
676 | if (copy_to_user(user_arg, (void *)&vm, sizeof(vm))) | |
677 | retval = -EFAULT; | |
678 | ||
679 | break; | |
680 | } | |
681 | ||
682 | case VIDIOCMCAPTURE: | |
683 | { | |
684 | struct video_mmap vm; | |
685 | // int video_size; | |
686 | ||
687 | if (copy_from_user((void *)&vm, user_arg, sizeof(vm))) { | |
688 | retval = -EFAULT; | |
689 | break; | |
690 | } | |
691 | ||
692 | DBG("VIDIOCMCAPTURE frame=%d, height=%d, width=%d, format=%d.\n",vm.frame,vm.width,vm.height,vm.format); | |
693 | ||
694 | if ( vm.frame >= VICAM_FRAMES || vm.format != VIDEO_PALETTE_RGB24 ) | |
695 | retval = -EINVAL; | |
696 | ||
697 | // in theory right here we'd start the image capturing | |
698 | // (fill in a bulk urb and submit it asynchronously) | |
699 | // | |
700 | // Instead we're going to do a total hack job for now and | |
701 | // retrieve the frame in VIDIOCSYNC | |
702 | ||
703 | break; | |
704 | } | |
705 | ||
706 | case VIDIOCSYNC: | |
707 | { | |
708 | int frame; | |
709 | ||
710 | if (copy_from_user((void *)&frame, user_arg, sizeof(int))) { | |
711 | retval = -EFAULT; | |
712 | break; | |
713 | } | |
714 | DBG("VIDIOCSYNC: %d\n", frame); | |
715 | ||
716 | read_frame(cam, frame); | |
717 | vicam_decode_color(cam->raw_image, | |
718 | cam->framebuf + | |
719 | frame * VICAM_MAX_FRAME_SIZE ); | |
720 | ||
721 | break; | |
722 | } | |
723 | ||
724 | /* pointless to implement overlay with this camera */ | |
725 | case VIDIOCCAPTURE: | |
726 | case VIDIOCGFBUF: | |
727 | case VIDIOCSFBUF: | |
728 | case VIDIOCKEY: | |
729 | retval = -EINVAL; | |
730 | break; | |
731 | ||
732 | /* tuner interface - we have none */ | |
733 | case VIDIOCGTUNER: | |
734 | case VIDIOCSTUNER: | |
735 | case VIDIOCGFREQ: | |
736 | case VIDIOCSFREQ: | |
737 | retval = -EINVAL; | |
738 | break; | |
739 | ||
740 | /* audio interface - we have none */ | |
741 | case VIDIOCGAUDIO: | |
742 | case VIDIOCSAUDIO: | |
743 | retval = -EINVAL; | |
744 | break; | |
745 | default: | |
746 | retval = -ENOIOCTLCMD; | |
747 | break; | |
748 | } | |
749 | ||
750 | return retval; | |
751 | } | |
752 | ||
753 | static int | |
754 | vicam_open(struct inode *inode, struct file *file) | |
755 | { | |
756 | struct video_device *dev = video_devdata(file); | |
757 | struct vicam_camera *cam = | |
758 | (struct vicam_camera *) dev->priv; | |
759 | DBG("open\n"); | |
760 | ||
761 | if (!cam) { | |
762 | printk(KERN_ERR | |
763 | "vicam video_device improperly initialized"); | |
f88f8295 | 764 | return -EINVAL; |
1da177e4 LT |
765 | } |
766 | ||
767 | /* the videodev_lock held above us protects us from | |
768 | * simultaneous opens...for now. we probably shouldn't | |
769 | * rely on this fact forever. | |
770 | */ | |
771 | ||
772 | if (cam->open_count > 0) { | |
773 | printk(KERN_INFO | |
774 | "vicam_open called on already opened camera"); | |
775 | return -EBUSY; | |
776 | } | |
777 | ||
778 | cam->raw_image = kmalloc(VICAM_MAX_READ_SIZE, GFP_KERNEL); | |
779 | if (!cam->raw_image) { | |
780 | return -ENOMEM; | |
781 | } | |
782 | ||
783 | cam->framebuf = rvmalloc(VICAM_MAX_FRAME_SIZE * VICAM_FRAMES); | |
784 | if (!cam->framebuf) { | |
785 | kfree(cam->raw_image); | |
786 | return -ENOMEM; | |
787 | } | |
788 | ||
789 | cam->cntrlbuf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
790 | if (!cam->cntrlbuf) { | |
791 | kfree(cam->raw_image); | |
792 | rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES); | |
793 | return -ENOMEM; | |
794 | } | |
795 | ||
796 | // First upload firmware, then turn the camera on | |
797 | ||
798 | if (!cam->is_initialized) { | |
799 | initialize_camera(cam); | |
800 | ||
801 | cam->is_initialized = 1; | |
802 | } | |
803 | ||
804 | set_camera_power(cam, 1); | |
805 | ||
806 | cam->needsDummyRead = 1; | |
807 | cam->open_count++; | |
808 | ||
d56410e0 MCC |
809 | file->private_data = cam; |
810 | ||
1da177e4 LT |
811 | return 0; |
812 | } | |
813 | ||
d56410e0 | 814 | static int |
1da177e4 LT |
815 | vicam_close(struct inode *inode, struct file *file) |
816 | { | |
817 | struct vicam_camera *cam = file->private_data; | |
818 | int open_count; | |
819 | struct usb_device *udev; | |
820 | ||
821 | DBG("close\n"); | |
822 | ||
823 | /* it's not the end of the world if | |
824 | * we fail to turn the camera off. | |
825 | */ | |
826 | ||
827 | set_camera_power(cam, 0); | |
828 | ||
829 | kfree(cam->raw_image); | |
830 | rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES); | |
831 | kfree(cam->cntrlbuf); | |
832 | ||
4186ecf8 | 833 | mutex_lock(&cam->cam_lock); |
1da177e4 LT |
834 | |
835 | cam->open_count--; | |
836 | open_count = cam->open_count; | |
837 | udev = cam->udev; | |
838 | ||
4186ecf8 | 839 | mutex_unlock(&cam->cam_lock); |
1da177e4 LT |
840 | |
841 | if (!open_count && !udev) { | |
842 | kfree(cam); | |
843 | } | |
844 | ||
845 | return 0; | |
846 | } | |
847 | ||
848 | static void vicam_decode_color(const u8 *data, u8 *rgb) | |
849 | { | |
850 | /* vicam_decode_color - Convert from Vicam Y-Cr-Cb to RGB | |
851 | * Copyright (C) 2002 Monroe Williams (monroe@pobox.com) | |
852 | */ | |
853 | ||
854 | int i, prevY, nextY; | |
855 | ||
856 | prevY = 512; | |
857 | nextY = 512; | |
858 | ||
859 | data += VICAM_HEADER_SIZE; | |
860 | ||
861 | for( i = 0; i < 240; i++, data += 512 ) { | |
862 | const int y = ( i * 242 ) / 240; | |
863 | ||
864 | int j, prevX, nextX; | |
865 | int Y, Cr, Cb; | |
866 | ||
867 | if ( y == 242 - 1 ) { | |
868 | nextY = -512; | |
869 | } | |
870 | ||
871 | prevX = 1; | |
872 | nextX = 1; | |
873 | ||
874 | for ( j = 0; j < 320; j++, rgb += 3 ) { | |
875 | const int x = ( j * 512 ) / 320; | |
876 | const u8 * const src = &data[x]; | |
877 | ||
878 | if ( x == 512 - 1 ) { | |
879 | nextX = -1; | |
880 | } | |
881 | ||
882 | Cr = ( src[prevX] - src[0] ) + | |
883 | ( src[nextX] - src[0] ); | |
884 | Cr /= 2; | |
885 | ||
886 | Cb = ( src[prevY] - src[prevX + prevY] ) + | |
887 | ( src[prevY] - src[nextX + prevY] ) + | |
888 | ( src[nextY] - src[prevX + nextY] ) + | |
889 | ( src[nextY] - src[nextX + nextY] ); | |
890 | Cb /= 4; | |
891 | ||
892 | Y = 1160 * ( src[0] + ( Cr / 2 ) - 16 ); | |
893 | ||
894 | if ( i & 1 ) { | |
895 | int Ct = Cr; | |
896 | Cr = Cb; | |
897 | Cb = Ct; | |
898 | } | |
899 | ||
900 | if ( ( x ^ i ) & 1 ) { | |
901 | Cr = -Cr; | |
902 | Cb = -Cb; | |
903 | } | |
904 | ||
905 | rgb[0] = clamp( ( ( Y + ( 2017 * Cb ) ) + | |
906 | 500 ) / 900, 0, 255 ); | |
907 | rgb[1] = clamp( ( ( Y - ( 392 * Cb ) - | |
908 | ( 813 * Cr ) ) + | |
909 | 500 ) / 1000, 0, 255 ); | |
910 | rgb[2] = clamp( ( ( Y + ( 1594 * Cr ) ) + | |
911 | 500 ) / 1300, 0, 255 ); | |
912 | ||
913 | prevX = -1; | |
914 | } | |
915 | ||
916 | prevY = -512; | |
917 | } | |
918 | } | |
919 | ||
920 | static void | |
921 | read_frame(struct vicam_camera *cam, int framenum) | |
922 | { | |
923 | unsigned char *request = cam->cntrlbuf; | |
924 | int realShutter; | |
925 | int n; | |
926 | int actual_length; | |
927 | ||
928 | if (cam->needsDummyRead) { | |
929 | cam->needsDummyRead = 0; | |
930 | read_frame(cam, framenum); | |
931 | } | |
932 | ||
933 | memset(request, 0, 16); | |
934 | request[0] = cam->gain; // 0 = 0% gain, FF = 100% gain | |
935 | ||
936 | request[1] = 0; // 512x242 capture | |
937 | ||
938 | request[2] = 0x90; // the function of these two bytes | |
939 | request[3] = 0x07; // is not yet understood | |
940 | ||
941 | if (cam->shutter_speed > 60) { | |
942 | // Short exposure | |
943 | realShutter = | |
944 | ((-15631900 / cam->shutter_speed) + 260533) / 1000; | |
945 | request[4] = realShutter & 0xFF; | |
946 | request[5] = (realShutter >> 8) & 0xFF; | |
947 | request[6] = 0x03; | |
948 | request[7] = 0x01; | |
949 | } else { | |
950 | // Long exposure | |
951 | realShutter = 15600 / cam->shutter_speed - 1; | |
952 | request[4] = 0; | |
953 | request[5] = 0; | |
954 | request[6] = realShutter & 0xFF; | |
955 | request[7] = realShutter >> 8; | |
956 | } | |
957 | ||
96de0e25 | 958 | // Per John Markus Bjørndalen, byte at index 8 causes problems if it isn't 0 |
1da177e4 LT |
959 | request[8] = 0; |
960 | // bytes 9-15 do not seem to affect exposure or image quality | |
961 | ||
4186ecf8 | 962 | mutex_lock(&cam->cam_lock); |
1da177e4 LT |
963 | |
964 | if (!cam->udev) { | |
965 | goto done; | |
966 | } | |
967 | ||
968 | n = __send_control_msg(cam, 0x51, 0x80, 0, request, 16); | |
969 | ||
970 | if (n < 0) { | |
971 | printk(KERN_ERR | |
972 | " Problem sending frame capture control message"); | |
973 | goto done; | |
974 | } | |
975 | ||
976 | n = usb_bulk_msg(cam->udev, | |
977 | usb_rcvbulkpipe(cam->udev, cam->bulkEndpoint), | |
978 | cam->raw_image, | |
979 | 512 * 242 + 128, &actual_length, 10000); | |
980 | ||
981 | if (n < 0) { | |
982 | printk(KERN_ERR "Problem during bulk read of frame data: %d\n", | |
983 | n); | |
984 | } | |
985 | ||
986 | done: | |
4186ecf8 | 987 | mutex_unlock(&cam->cam_lock); |
1da177e4 LT |
988 | } |
989 | ||
990 | static ssize_t | |
991 | vicam_read( struct file *file, char __user *buf, size_t count, loff_t *ppos ) | |
992 | { | |
993 | struct vicam_camera *cam = file->private_data; | |
994 | ||
995 | DBG("read %d bytes.\n", (int) count); | |
996 | ||
997 | if (*ppos >= VICAM_MAX_FRAME_SIZE) { | |
998 | *ppos = 0; | |
999 | return 0; | |
1000 | } | |
1001 | ||
1002 | if (*ppos == 0) { | |
1003 | read_frame(cam, 0); | |
1004 | vicam_decode_color(cam->raw_image, | |
1005 | cam->framebuf + | |
1006 | 0 * VICAM_MAX_FRAME_SIZE); | |
1007 | } | |
1008 | ||
1009 | count = min_t(size_t, count, VICAM_MAX_FRAME_SIZE - *ppos); | |
1010 | ||
1011 | if (copy_to_user(buf, &cam->framebuf[*ppos], count)) { | |
1012 | count = -EFAULT; | |
1013 | } else { | |
1014 | *ppos += count; | |
1015 | } | |
1016 | ||
1017 | if (count == VICAM_MAX_FRAME_SIZE) { | |
1018 | *ppos = 0; | |
1019 | } | |
1020 | ||
1021 | return count; | |
1022 | } | |
1023 | ||
1024 | ||
1025 | static int | |
1026 | vicam_mmap(struct file *file, struct vm_area_struct *vma) | |
1027 | { | |
1028 | // TODO: allocate the raw frame buffer if necessary | |
1029 | unsigned long page, pos; | |
1030 | unsigned long start = vma->vm_start; | |
1031 | unsigned long size = vma->vm_end-vma->vm_start; | |
1032 | struct vicam_camera *cam = file->private_data; | |
1033 | ||
1034 | if (!cam) | |
1035 | return -ENODEV; | |
1036 | ||
1037 | DBG("vicam_mmap: %ld\n", size); | |
1038 | ||
1039 | /* We let mmap allocate as much as it wants because Linux was adding 2048 bytes | |
1040 | * to the size the application requested for mmap and it was screwing apps up. | |
1041 | if (size > VICAM_FRAMES*VICAM_MAX_FRAME_SIZE) | |
1042 | return -EINVAL; | |
1043 | */ | |
1044 | ||
1045 | pos = (unsigned long)cam->framebuf; | |
1046 | while (size > 0) { | |
1047 | page = vmalloc_to_pfn((void *)pos); | |
1048 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) | |
1049 | return -EAGAIN; | |
1050 | ||
1051 | start += PAGE_SIZE; | |
1052 | pos += PAGE_SIZE; | |
1053 | if (size > PAGE_SIZE) | |
1054 | size -= PAGE_SIZE; | |
1055 | else | |
1056 | size = 0; | |
1057 | } | |
1058 | ||
1059 | return 0; | |
1060 | } | |
1061 | ||
fa027c2a | 1062 | static const struct file_operations vicam_fops = { |
1da177e4 LT |
1063 | .owner = THIS_MODULE, |
1064 | .open = vicam_open, | |
1065 | .release = vicam_close, | |
1066 | .read = vicam_read, | |
1067 | .mmap = vicam_mmap, | |
1068 | .ioctl = vicam_ioctl, | |
0d0fbf81 | 1069 | .compat_ioctl = v4l_compat_ioctl32, |
1da177e4 LT |
1070 | .llseek = no_llseek, |
1071 | }; | |
1072 | ||
1073 | static struct video_device vicam_template = { | |
1074 | .owner = THIS_MODULE, | |
1075 | .name = "ViCam-based USB Camera", | |
1076 | .type = VID_TYPE_CAPTURE, | |
1077 | .hardware = VID_HARDWARE_VICAM, | |
1078 | .fops = &vicam_fops, | |
1079 | .minor = -1, | |
1080 | }; | |
1081 | ||
1082 | /* table of devices that work with this driver */ | |
1083 | static struct usb_device_id vicam_table[] = { | |
1084 | {USB_DEVICE(USB_VICAM_VENDOR_ID, USB_VICAM_PRODUCT_ID)}, | |
81409ed0 | 1085 | {USB_DEVICE(USB_COMPRO_VENDOR_ID, USB_COMPRO_PRODUCT_ID)}, |
1da177e4 LT |
1086 | {} /* Terminating entry */ |
1087 | }; | |
1088 | ||
1089 | MODULE_DEVICE_TABLE(usb, vicam_table); | |
1090 | ||
1091 | static struct usb_driver vicam_driver = { | |
1da177e4 LT |
1092 | .name = "vicam", |
1093 | .probe = vicam_probe, | |
1094 | .disconnect = vicam_disconnect, | |
1095 | .id_table = vicam_table | |
1096 | }; | |
1097 | ||
1098 | /** | |
1099 | * vicam_probe | |
1100 | * @intf: the interface | |
1101 | * @id: the device id | |
1102 | * | |
1103 | * Called by the usb core when a new device is connected that it thinks | |
1104 | * this driver might be interested in. | |
1105 | */ | |
1106 | static int | |
1107 | vicam_probe( struct usb_interface *intf, const struct usb_device_id *id) | |
1108 | { | |
1109 | struct usb_device *dev = interface_to_usbdev(intf); | |
1110 | int bulkEndpoint = 0; | |
1111 | const struct usb_host_interface *interface; | |
1112 | const struct usb_endpoint_descriptor *endpoint; | |
1113 | struct vicam_camera *cam; | |
d56410e0 | 1114 | |
1da177e4 LT |
1115 | printk(KERN_INFO "ViCam based webcam connected\n"); |
1116 | ||
1117 | interface = intf->cur_altsetting; | |
1118 | ||
1119 | DBG(KERN_DEBUG "Interface %d. has %u. endpoints!\n", | |
1120 | interface->desc.bInterfaceNumber, (unsigned) (interface->desc.bNumEndpoints)); | |
1121 | endpoint = &interface->endpoint[0].desc; | |
1122 | ||
1123 | if ((endpoint->bEndpointAddress & 0x80) && | |
1124 | ((endpoint->bmAttributes & 3) == 0x02)) { | |
1125 | /* we found a bulk in endpoint */ | |
1126 | bulkEndpoint = endpoint->bEndpointAddress; | |
1127 | } else { | |
1128 | printk(KERN_ERR | |
1129 | "No bulk in endpoint was found ?! (this is bad)\n"); | |
1130 | } | |
1131 | ||
1132 | if ((cam = | |
dd00cc48 | 1133 | kzalloc(sizeof (struct vicam_camera), GFP_KERNEL)) == NULL) { |
1da177e4 LT |
1134 | printk(KERN_WARNING |
1135 | "could not allocate kernel memory for vicam_camera struct\n"); | |
1136 | return -ENOMEM; | |
1137 | } | |
1138 | ||
1da177e4 LT |
1139 | |
1140 | cam->shutter_speed = 15; | |
1141 | ||
4186ecf8 | 1142 | mutex_init(&cam->cam_lock); |
1da177e4 LT |
1143 | |
1144 | memcpy(&cam->vdev, &vicam_template, | |
1145 | sizeof (vicam_template)); | |
1146 | cam->vdev.priv = cam; // sort of a reverse mapping for those functions that get vdev only | |
1147 | ||
1148 | cam->udev = dev; | |
1149 | cam->bulkEndpoint = bulkEndpoint; | |
1150 | ||
1151 | if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, -1) == -1) { | |
1152 | kfree(cam); | |
1153 | printk(KERN_WARNING "video_register_device failed\n"); | |
1154 | return -EIO; | |
1155 | } | |
1156 | ||
1da177e4 LT |
1157 | printk(KERN_INFO "ViCam webcam driver now controlling video device %d\n",cam->vdev.minor); |
1158 | ||
1159 | usb_set_intfdata (intf, cam); | |
d56410e0 | 1160 | |
1da177e4 LT |
1161 | return 0; |
1162 | } | |
1163 | ||
1164 | static void | |
1165 | vicam_disconnect(struct usb_interface *intf) | |
1166 | { | |
1167 | int open_count; | |
1168 | struct vicam_camera *cam = usb_get_intfdata (intf); | |
1169 | usb_set_intfdata (intf, NULL); | |
1170 | ||
1171 | /* we must unregister the device before taking its | |
1172 | * cam_lock. This is because the video open call | |
1173 | * holds the same lock as video unregister. if we | |
1174 | * unregister inside of the cam_lock and open also | |
1175 | * uses the cam_lock, we get deadlock. | |
1176 | */ | |
1177 | ||
1178 | video_unregister_device(&cam->vdev); | |
1179 | ||
1180 | /* stop the camera from being used */ | |
1181 | ||
4186ecf8 | 1182 | mutex_lock(&cam->cam_lock); |
1da177e4 LT |
1183 | |
1184 | /* mark the camera as gone */ | |
1185 | ||
1186 | cam->udev = NULL; | |
1187 | ||
1da177e4 LT |
1188 | /* the only thing left to do is synchronize with |
1189 | * our close/release function on who should release | |
1190 | * the camera memory. if there are any users using the | |
1191 | * camera, it's their job. if there are no users, | |
1192 | * it's ours. | |
1193 | */ | |
1194 | ||
1195 | open_count = cam->open_count; | |
1196 | ||
4186ecf8 | 1197 | mutex_unlock(&cam->cam_lock); |
1da177e4 LT |
1198 | |
1199 | if (!open_count) { | |
1200 | kfree(cam); | |
1201 | } | |
1202 | ||
1203 | printk(KERN_DEBUG "ViCam-based WebCam disconnected\n"); | |
1204 | } | |
1205 | ||
1206 | /* | |
1207 | */ | |
1208 | static int __init | |
1209 | usb_vicam_init(void) | |
1210 | { | |
1211 | int retval; | |
1212 | DBG(KERN_INFO "ViCam-based WebCam driver startup\n"); | |
1da177e4 LT |
1213 | retval = usb_register(&vicam_driver); |
1214 | if (retval) | |
1215 | printk(KERN_WARNING "usb_register failed!\n"); | |
1216 | return retval; | |
1217 | } | |
1218 | ||
1219 | static void __exit | |
1220 | usb_vicam_exit(void) | |
1221 | { | |
1222 | DBG(KERN_INFO | |
1223 | "ViCam-based WebCam driver shutdown\n"); | |
1224 | ||
1225 | usb_deregister(&vicam_driver); | |
1da177e4 LT |
1226 | } |
1227 | ||
1228 | module_init(usb_vicam_init); | |
1229 | module_exit(usb_vicam_exit); | |
1230 | ||
1231 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1232 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1233 | MODULE_LICENSE("GPL"); |