File: /usr/src/linux/drivers/usb/se401.h
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
9 #define se401_DEBUG /* Turn on debug messages */
10
11 #ifdef se401_DEBUG
12 # define PDEBUG(level, fmt, args...) \
13 if (debug >= level) info("[" __PRETTY_FUNCTION__ ":%d] " fmt, __LINE__ , ## args)
14 #else
15 # define PDEBUG(level, fmt, args...) do {} while(0)
16 #endif
17
18 /* An almost drop-in replacement for sleep_on_interruptible */
19 #define wait_interruptible(test, queue, wait) \
20 { \
21 add_wait_queue(queue, wait); \
22 set_current_state(TASK_INTERRUPTIBLE); \
23 if (test) \
24 schedule(); \
25 remove_wait_queue(queue, wait); \
26 set_current_state(TASK_RUNNING); \
27 if (signal_pending(current)) \
28 break; \
29 }
30
31 #define SE401_REQ_GET_CAMERA_DESCRIPTOR 0x06
32 #define SE401_REQ_START_CONTINUOUS_CAPTURE 0x41
33 #define SE401_REQ_STOP_CONTINUOUS_CAPTURE 0x42
34 #define SE401_REQ_CAPTURE_FRAME 0x43
35 #define SE401_REQ_GET_BRT 0x44
36 #define SE401_REQ_SET_BRT 0x45
37 #define SE401_REQ_GET_WIDTH 0x4c
38 #define SE401_REQ_SET_WIDTH 0x4d
39 #define SE401_REQ_GET_HEIGHT 0x4e
40 #define SE401_REQ_SET_HEIGHT 0x4f
41 #define SE401_REQ_GET_OUTPUT_MODE 0x50
42 #define SE401_REQ_SET_OUTPUT_MODE 0x51
43 #define SE401_REQ_GET_EXT_FEATURE 0x52
44 #define SE401_REQ_SET_EXT_FEATURE 0x53
45 #define SE401_REQ_CAMERA_POWER 0x56
46 #define SE401_REQ_LED_CONTROL 0x57
47 #define SE401_REQ_BIOS 0xff
48
49 #define SE401_BIOS_READ 0x07
50
51 #define SE401_FORMAT_BAYER 0x40
52
53 /* Hyundai hv7131b registers
54 7121 and 7141 should be the same (haven't really checked...) */
55 /* Mode registers: */
56 #define HV7131_REG_MODE_A 0x00
57 #define HV7131_REG_MODE_B 0x01
58 #define HV7131_REG_MODE_C 0x02
59 /* Frame registers: */
60 #define HV7131_REG_FRSU 0x10
61 #define HV7131_REG_FRSL 0x11
62 #define HV7131_REG_FCSU 0x12
63 #define HV7131_REG_FCSL 0x13
64 #define HV7131_REG_FWHU 0x14
65 #define HV7131_REG_FWHL 0x15
66 #define HV7131_REG_FWWU 0x16
67 #define HV7131_REG_FWWL 0x17
68 /* Timing registers: */
69 #define HV7131_REG_THBU 0x20
70 #define HV7131_REG_THBL 0x21
71 #define HV7131_REG_TVBU 0x22
72 #define HV7131_REG_TVBL 0x23
73 #define HV7131_REG_TITU 0x25
74 #define HV7131_REG_TITM 0x26
75 #define HV7131_REG_TITL 0x27
76 #define HV7131_REG_TMCD 0x28
77 /* Adjust Registers: */
78 #define HV7131_REG_ARLV 0x30
79 #define HV7131_REG_ARCG 0x31
80 #define HV7131_REG_AGCG 0x32
81 #define HV7131_REG_ABCG 0x33
82 #define HV7131_REG_APBV 0x34
83 #define HV7131_REG_ASLP 0x54
84 /* Offset Registers: */
85 #define HV7131_REG_OFSR 0x50
86 #define HV7131_REG_OFSG 0x51
87 #define HV7131_REG_OFSB 0x52
88 /* REset level statistics registers: */
89 #define HV7131_REG_LOREFNOH 0x57
90 #define HV7131_REG_LOREFNOL 0x58
91 #define HV7131_REG_HIREFNOH 0x59
92 #define HV7131_REG_HIREFNOL 0x5a
93
94 /* se401 registers */
95 #define SE401_OPERATINGMODE 0x2000
96
97
98 /* size of usb transfers */
99 #define SE401_PACKETSIZE 4096
100 /* number of queued bulk transfers to use, should be about 8 */
101 #define SE401_NUMSBUF 1
102 /* read the usb specs for this one :) */
103 #define SE401_VIDEO_ENDPOINT 1
104 #define SE401_BUTTON_ENDPOINT 2
105 /* number of frames supported by the v4l part */
106 #define SE401_NUMFRAMES 2
107 /* scratch buffers for passing data to the decoders */
108 #define SE401_NUMSCRATCH 32
109 /* maximum amount of data in a JangGu packet */
110 #define SE401_VLCDATALEN 1024
111 /* number of nul sized packets to receive before kicking the camera */
112 #define SE401_MAX_NULLPACKETS 4000
113 /* number of decoding errors before kicking the camera */
114 #define SE401_MAX_ERRORS 200
115
116 struct usb_device;
117
118 struct se401_sbuf {
119 unsigned char *data;
120 };
121
122 enum {
123 FRAME_UNUSED, /* Unused (no MCAPTURE) */
124 FRAME_READY, /* Ready to start grabbing */
125 FRAME_GRABBING, /* In the process of being grabbed into */
126 FRAME_DONE, /* Finished grabbing, but not been synced yet */
127 FRAME_ERROR, /* Something bad happened while processing */
128 };
129
130 enum {
131 FMT_BAYER,
132 FMT_JANGGU,
133 };
134
135 enum {
136 BUFFER_UNUSED,
137 BUFFER_READY,
138 BUFFER_BUSY,
139 BUFFER_DONE,
140 };
141
142 struct se401_scratch {
143 unsigned char *data;
144 volatile int state;
145 int offset;
146 int length;
147 };
148
149 struct se401_frame {
150 unsigned char *data; /* Frame buffer */
151
152 volatile int grabstate; /* State of grabbing */
153
154 unsigned char *curline;
155 int curlinepix;
156 int curpix;
157 };
158
159 struct usb_se401 {
160 struct video_device vdev;
161
162 /* Device structure */
163 struct usb_device *dev;
164
165 unsigned char iface;
166
167 char *camera_name;
168
169 int change;
170 int brightness;
171 int hue;
172 int rgain;
173 int ggain;
174 int bgain;
175 int expose_h;
176 int expose_m;
177 int expose_l;
178 int resetlevel;
179
180 int enhance;
181
182 int format;
183 int sizes;
184 int *width;
185 int *height;
186 int cwidth; /* current width */
187 int cheight; /* current height */
188 int palette;
189 int maxframesize;
190 int cframesize; /* current framesize */
191
192 struct semaphore lock;
193 int user; /* user count for exclusive use */
194 int removed; /* device disconnected */
195
196 int streaming; /* Are we streaming video? */
197
198 char *fbuf; /* Videodev buffer area */
199
200 urb_t *urb[SE401_NUMSBUF];
201 urb_t *inturb;
202
203 int button;
204 int buttonpressed;
205
206 int curframe; /* Current receiving frame */
207 struct se401_frame frame[SE401_NUMFRAMES];
208 int readcount;
209 int framecount;
210 int error;
211 int dropped;
212
213 int scratch_next;
214 int scratch_use;
215 int scratch_overflow;
216 struct se401_scratch scratch[SE401_NUMSCRATCH];
217
218 /* Decoder specific data: */
219 unsigned char vlcdata[SE401_VLCDATALEN];
220 int vlcdatapos;
221 int bayeroffset;
222
223 struct se401_sbuf sbuf[SE401_NUMSBUF];
224
225 wait_queue_head_t wq; /* Processes waiting */
226
227 /* proc interface */
228 struct proc_dir_entry *proc_entry; /* /proc/se401/videoX */
229
230 int nullpackets;
231 };
232
233 static inline void usb_se401_remove_disconnected (struct usb_se401 *se401);
234
235
236 #endif
237
238