1
2 #ifndef __LINUX_se401_H
3 #define __LINUX_se401_H
4
5 #include <asm/uaccess.h>
6 #include <linux/videodev.h>
7 #include <linux/smp_lock.h>
8 #include <linux/mutex.h>
9
10 #define se401_DEBUG /* Turn on debug messages */
11
12 #ifdef se401_DEBUG
13 # define PDEBUG(level, fmt, args...) \
14 if (debug >= level) info("[" __PRETTY_FUNCTION__ ":%d] " fmt, __LINE__ , ## args)
15 #else
16 # define PDEBUG(level, fmt, args...) do {} while(0)
17 #endif
18
19 /* An almost drop-in replacement for sleep_on_interruptible */
20 #define wait_interruptible(test, queue, wait) \
21 { \
22 add_wait_queue(queue, wait); \
23 set_current_state(TASK_INTERRUPTIBLE); \
24 if (test) \
25 schedule(); \
26 remove_wait_queue(queue, wait); \
27 set_current_state(TASK_RUNNING); \
28 if (signal_pending(current)) \
29 break; \
30 }
31
32 #define SE401_REQ_GET_CAMERA_DESCRIPTOR 0x06
33 #define SE401_REQ_START_CONTINUOUS_CAPTURE 0x41
34 #define SE401_REQ_STOP_CONTINUOUS_CAPTURE 0x42
35 #define SE401_REQ_CAPTURE_FRAME 0x43
36 #define SE401_REQ_GET_BRT 0x44
37 #define SE401_REQ_SET_BRT 0x45
38 #define SE401_REQ_GET_WIDTH 0x4c
39 #define SE401_REQ_SET_WIDTH 0x4d
40 #define SE401_REQ_GET_HEIGHT 0x4e
41 #define SE401_REQ_SET_HEIGHT 0x4f
42 #define SE401_REQ_GET_OUTPUT_MODE 0x50
43 #define SE401_REQ_SET_OUTPUT_MODE 0x51
44 #define SE401_REQ_GET_EXT_FEATURE 0x52
45 #define SE401_REQ_SET_EXT_FEATURE 0x53
46 #define SE401_REQ_CAMERA_POWER 0x56
47 #define SE401_REQ_LED_CONTROL 0x57
48 #define SE401_REQ_BIOS 0xff
49
50 #define SE401_BIOS_READ 0x07
51
52 #define SE401_FORMAT_BAYER 0x40
53
54 /* Hyundai hv7131b registers
55 7121 and 7141 should be the same (haven't really checked...) */
56 /* Mode registers: */
57 #define HV7131_REG_MODE_A 0x00
58 #define HV7131_REG_MODE_B 0x01
59 #define HV7131_REG_MODE_C 0x02
60 /* Frame registers: */
61 #define HV7131_REG_FRSU 0x10
62 #define HV7131_REG_FRSL 0x11
63 #define HV7131_REG_FCSU 0x12
64 #define HV7131_REG_FCSL 0x13
65 #define HV7131_REG_FWHU 0x14
66 #define HV7131_REG_FWHL 0x15
67 #define HV7131_REG_FWWU 0x16
68 #define HV7131_REG_FWWL 0x17
69 /* Timing registers: */
70 #define HV7131_REG_THBU 0x20
71 #define HV7131_REG_THBL 0x21
72 #define HV7131_REG_TVBU 0x22
73 #define HV7131_REG_TVBL 0x23
74 #define HV7131_REG_TITU 0x25
75 #define HV7131_REG_TITM 0x26
76 #define HV7131_REG_TITL 0x27
77 #define HV7131_REG_TMCD 0x28
78 /* Adjust Registers: */
79 #define HV7131_REG_ARLV 0x30
80 #define HV7131_REG_ARCG 0x31
81 #define HV7131_REG_AGCG 0x32
82 #define HV7131_REG_ABCG 0x33
83 #define HV7131_REG_APBV 0x34
84 #define HV7131_REG_ASLP 0x54
85 /* Offset Registers: */
86 #define HV7131_REG_OFSR 0x50
87 #define HV7131_REG_OFSG 0x51
88 #define HV7131_REG_OFSB 0x52
89 /* REset level statistics registers: */
90 #define HV7131_REG_LOREFNOH 0x57
91 #define HV7131_REG_LOREFNOL 0x58
92 #define HV7131_REG_HIREFNOH 0x59
93 #define HV7131_REG_HIREFNOL 0x5a
94
95 /* se401 registers */
96 #define SE401_OPERATINGMODE 0x2000
97
98
99 /* size of usb transfers */
100 #define SE401_PACKETSIZE 4096
101 /* number of queued bulk transfers to use, should be about 8 */
102 #define SE401_NUMSBUF 1
103 /* read the usb specs for this one :) */
104 #define SE401_VIDEO_ENDPOINT 1
105 #define SE401_BUTTON_ENDPOINT 2
106 /* number of frames supported by the v4l part */
107 #define SE401_NUMFRAMES 2
108 /* scratch buffers for passing data to the decoders */
109 #define SE401_NUMSCRATCH 32
110 /* maximum amount of data in a JangGu packet */
111 #define SE401_VLCDATALEN 1024
112 /* number of nul sized packets to receive before kicking the camera */
113 #define SE401_MAX_NULLPACKETS 4000
114 /* number of decoding errors before kicking the camera */
115 #define SE401_MAX_ERRORS 200
116
117 struct usb_device;
118
119 struct se401_sbuf {
120 unsigned char *data;
121 };
122
123 enum {
124 FRAME_UNUSED, /* Unused (no MCAPTURE) */
125 FRAME_READY, /* Ready to start grabbing */
126 FRAME_GRABBING, /* In the process of being grabbed into */
127 FRAME_DONE, /* Finished grabbing, but not been synced yet */
128 FRAME_ERROR, /* Something bad happened while processing */
129 };
130
131 enum {
132 FMT_BAYER,
133 FMT_JANGGU,
134 };
135
136 enum {
137 BUFFER_UNUSED,
138 BUFFER_READY,
139 BUFFER_BUSY,
140 BUFFER_DONE,
141 };
142
143 struct se401_scratch {
144 unsigned char *data;
145 volatile int state;
146 int offset;
147 int length;
148 };
149
150 struct se401_frame {
151 unsigned char *data; /* Frame buffer */
152
153 volatile int grabstate; /* State of grabbing */
154
155 unsigned char *curline;
156 int curlinepix;
157 int curpix;
158 };
159
160 struct usb_se401 {
161 struct video_device vdev;
162
163 /* Device structure */
164 struct usb_device *dev;
165
166 unsigned char iface;
167
168 char *camera_name;
169
170 int change;
171 int brightness;
172 int hue;
173 int rgain;
174 int ggain;
175 int bgain;
176 int expose_h;
177 int expose_m;
178 int expose_l;
179 int resetlevel;
180
181 int enhance;
182
183 int format;
184 int sizes;
185 int *width;
186 int *height;
187 int cwidth; /* current width */
188 int cheight; /* current height */
189 int palette;
190 int maxframesize;
191 int cframesize; /* current framesize */
192
193 struct mutex lock;
194 int user; /* user count for exclusive use */
195 int removed; /* device disconnected */
196
197 int streaming; /* Are we streaming video? */
198
199 char *fbuf; /* Videodev buffer area */
200
201 struct urb *urb[SE401_NUMSBUF];
202 struct urb *inturb;
203
204 int button;
205 int buttonpressed;
206
207 int curframe; /* Current receiving frame */
208 struct se401_frame frame[SE401_NUMFRAMES];
209 int readcount;
210 int framecount;
211 int error;
212 int dropped;
213
214 int scratch_next;
215 int scratch_use;
216 int scratch_overflow;
217 struct se401_scratch scratch[SE401_NUMSCRATCH];
218
219 /* Decoder specific data: */
220 unsigned char vlcdata[SE401_VLCDATALEN];
221 int vlcdatapos;
222 int bayeroffset;
223
224 struct se401_sbuf sbuf[SE401_NUMSBUF];
225
226 wait_queue_head_t wq; /* Processes waiting */
227
228 int nullpackets;
229 };
230
231
232
233 #endif
234
235
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