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...) \
13if (debug >= level) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __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
116struct usb_device;
117
118struct se401_sbuf {
119	unsigned char *data;
120};
121
122enum {
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
130enum {
131	FMT_BAYER,
132	FMT_JANGGU,
133};
134
135enum {
136	BUFFER_UNUSED,
137	BUFFER_READY,
138	BUFFER_BUSY,
139	BUFFER_DONE,
140};
141
142struct se401_scratch {
143	unsigned char *data;
144	volatile int state;
145	int offset;
146	int length;
147};
148
149struct 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
159struct 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	struct urb *urb[SE401_NUMSBUF];
201	struct urb *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
233static inline void usb_se401_remove_disconnected (struct usb_se401 *se401);
234
235
236#endif
237
238