tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1
2#ifndef __LINUX_se401_H
3#define __LINUX_se401_H
4
5#include <asm/uaccess.h>
6#include <linux/videodev.h>
7#include <media/v4l2-common.h>
8#include <media/v4l2-ioctl.h>
9#include <linux/mutex.h>
10
11#define se401_DEBUG /* Turn on debug messages */
12
13#ifdef se401_DEBUG
14# define PDEBUG(level, fmt, args...) \
15if (debug >= level) info("[" __PRETTY_FUNCTION__ ":%d] " fmt, __LINE__ , ## args)
16#else
17# define PDEBUG(level, fmt, args...) do {} while(0)
18#endif
19
20/* An almost drop-in replacement for sleep_on_interruptible */
21#define wait_interruptible(test, queue, wait) \
22{ \
23 add_wait_queue(queue, wait); \
24 set_current_state(TASK_INTERRUPTIBLE); \
25 if (test) \
26 schedule(); \
27 remove_wait_queue(queue, wait); \
28 set_current_state(TASK_RUNNING); \
29 if (signal_pending(current)) \
30 break; \
31}
32
33#define SE401_REQ_GET_CAMERA_DESCRIPTOR 0x06
34#define SE401_REQ_START_CONTINUOUS_CAPTURE 0x41
35#define SE401_REQ_STOP_CONTINUOUS_CAPTURE 0x42
36#define SE401_REQ_CAPTURE_FRAME 0x43
37#define SE401_REQ_GET_BRT 0x44
38#define SE401_REQ_SET_BRT 0x45
39#define SE401_REQ_GET_WIDTH 0x4c
40#define SE401_REQ_SET_WIDTH 0x4d
41#define SE401_REQ_GET_HEIGHT 0x4e
42#define SE401_REQ_SET_HEIGHT 0x4f
43#define SE401_REQ_GET_OUTPUT_MODE 0x50
44#define SE401_REQ_SET_OUTPUT_MODE 0x51
45#define SE401_REQ_GET_EXT_FEATURE 0x52
46#define SE401_REQ_SET_EXT_FEATURE 0x53
47#define SE401_REQ_CAMERA_POWER 0x56
48#define SE401_REQ_LED_CONTROL 0x57
49#define SE401_REQ_BIOS 0xff
50
51#define SE401_BIOS_READ 0x07
52
53#define SE401_FORMAT_BAYER 0x40
54
55/* Hyundai hv7131b registers
56 7121 and 7141 should be the same (haven't really checked...) */
57/* Mode registers: */
58#define HV7131_REG_MODE_A 0x00
59#define HV7131_REG_MODE_B 0x01
60#define HV7131_REG_MODE_C 0x02
61/* Frame registers: */
62#define HV7131_REG_FRSU 0x10
63#define HV7131_REG_FRSL 0x11
64#define HV7131_REG_FCSU 0x12
65#define HV7131_REG_FCSL 0x13
66#define HV7131_REG_FWHU 0x14
67#define HV7131_REG_FWHL 0x15
68#define HV7131_REG_FWWU 0x16
69#define HV7131_REG_FWWL 0x17
70/* Timing registers: */
71#define HV7131_REG_THBU 0x20
72#define HV7131_REG_THBL 0x21
73#define HV7131_REG_TVBU 0x22
74#define HV7131_REG_TVBL 0x23
75#define HV7131_REG_TITU 0x25
76#define HV7131_REG_TITM 0x26
77#define HV7131_REG_TITL 0x27
78#define HV7131_REG_TMCD 0x28
79/* Adjust Registers: */
80#define HV7131_REG_ARLV 0x30
81#define HV7131_REG_ARCG 0x31
82#define HV7131_REG_AGCG 0x32
83#define HV7131_REG_ABCG 0x33
84#define HV7131_REG_APBV 0x34
85#define HV7131_REG_ASLP 0x54
86/* Offset Registers: */
87#define HV7131_REG_OFSR 0x50
88#define HV7131_REG_OFSG 0x51
89#define HV7131_REG_OFSB 0x52
90/* REset level statistics registers: */
91#define HV7131_REG_LOREFNOH 0x57
92#define HV7131_REG_LOREFNOL 0x58
93#define HV7131_REG_HIREFNOH 0x59
94#define HV7131_REG_HIREFNOL 0x5a
95
96/* se401 registers */
97#define SE401_OPERATINGMODE 0x2000
98
99
100/* size of usb transfers */
101#define SE401_PACKETSIZE 4096
102/* number of queued bulk transfers to use, should be about 8 */
103#define SE401_NUMSBUF 1
104/* read the usb specs for this one :) */
105#define SE401_VIDEO_ENDPOINT 1
106#define SE401_BUTTON_ENDPOINT 2
107/* number of frames supported by the v4l part */
108#define SE401_NUMFRAMES 2
109/* scratch buffers for passing data to the decoders */
110#define SE401_NUMSCRATCH 32
111/* maximum amount of data in a JangGu packet */
112#define SE401_VLCDATALEN 1024
113/* number of nul sized packets to receive before kicking the camera */
114#define SE401_MAX_NULLPACKETS 4000
115/* number of decoding errors before kicking the camera */
116#define SE401_MAX_ERRORS 200
117
118struct usb_device;
119
120struct se401_sbuf {
121 unsigned char *data;
122};
123
124enum {
125 FRAME_UNUSED, /* Unused (no MCAPTURE) */
126 FRAME_READY, /* Ready to start grabbing */
127 FRAME_GRABBING, /* In the process of being grabbed into */
128 FRAME_DONE, /* Finished grabbing, but not been synced yet */
129 FRAME_ERROR, /* Something bad happened while processing */
130};
131
132enum {
133 FMT_BAYER,
134 FMT_JANGGU,
135};
136
137enum {
138 BUFFER_UNUSED,
139 BUFFER_READY,
140 BUFFER_BUSY,
141 BUFFER_DONE,
142};
143
144struct se401_scratch {
145 unsigned char *data;
146 volatile int state;
147 int offset;
148 int length;
149};
150
151struct se401_frame {
152 unsigned char *data; /* Frame buffer */
153
154 volatile int grabstate; /* State of grabbing */
155
156 unsigned char *curline;
157 int curlinepix;
158 int curpix;
159};
160
161struct usb_se401 {
162 struct video_device vdev;
163
164 /* Device structure */
165 struct usb_device *dev;
166
167 unsigned char iface;
168
169 char *camera_name;
170
171 int change;
172 int brightness;
173 int hue;
174 int rgain;
175 int ggain;
176 int bgain;
177 int expose_h;
178 int expose_m;
179 int expose_l;
180 int resetlevel;
181
182 int enhance;
183
184 int format;
185 int sizes;
186 int *width;
187 int *height;
188 int cwidth; /* current width */
189 int cheight; /* current height */
190 int palette;
191 int maxframesize;
192 int cframesize; /* current framesize */
193
194 struct mutex lock;
195 int user; /* user count for exclusive use */
196 int removed; /* device disconnected */
197
198 int streaming; /* Are we streaming video? */
199
200 char *fbuf; /* Videodev buffer area */
201
202 struct urb *urb[SE401_NUMSBUF];
203 struct urb *inturb;
204
205 int button;
206 int buttonpressed;
207
208 int curframe; /* Current receiving frame */
209 struct se401_frame frame[SE401_NUMFRAMES];
210 int readcount;
211 int framecount;
212 int error;
213 int dropped;
214
215 int scratch_next;
216 int scratch_use;
217 int scratch_overflow;
218 struct se401_scratch scratch[SE401_NUMSCRATCH];
219
220 /* Decoder specific data: */
221 unsigned char vlcdata[SE401_VLCDATALEN];
222 int vlcdatapos;
223 int bayeroffset;
224
225 struct se401_sbuf sbuf[SE401_NUMSBUF];
226
227 wait_queue_head_t wq; /* Processes waiting */
228
229 int nullpackets;
230};
231
232
233
234#endif
235