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f2242ee5 1/*
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2 * USBVISION.H
3 * usbvision header file
4 *
5 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
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6 * Dwaine Garden <dwainegarden@rogers.com>
7 *
8 *
15965f06 9 * Report problems to v4l MailingList: linux-media@vger.kernel.org
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10 *
11 * This module is part of usbvision driver project.
12 * Updates to driver completed by Dwaine P. Garden
c876a346 13 * v4l2 conversion by Thierry Merle <thierry.merle@free.fr>
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14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 */
29
30
31#ifndef __LINUX_USBVISION_H
32#define __LINUX_USBVISION_H
33
34#include <linux/list.h>
6714b012 35#include <linux/usb.h>
2a9f8b5d 36#include <linux/i2c.h>
289d4d2f 37#include <linux/mutex.h>
1df79537 38#include <media/v4l2-device.h>
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39#include <media/tuner.h>
40#include <linux/videodev2.h>
781aa1d1 41
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42#define USBVISION_DEBUG /* Turn on debug messages */
43
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44#define USBVISION_PWR_REG 0x00
45 #define USBVISION_SSPND_EN (1 << 1)
46 #define USBVISION_RES2 (1 << 2)
47 #define USBVISION_PWR_VID (1 << 5)
f2242ee5 48 #define USBVISION_E2_EN (1 << 7)
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49#define USBVISION_CONFIG_REG 0x01
50#define USBVISION_ADRS_REG 0x02
51#define USBVISION_ALTER_REG 0x03
52#define USBVISION_FORCE_ALTER_REG 0x04
53#define USBVISION_STATUS_REG 0x05
54#define USBVISION_IOPIN_REG 0x06
55 #define USBVISION_IO_1 (1 << 0)
56 #define USBVISION_IO_2 (1 << 1)
57 #define USBVISION_AUDIO_IN 0
58 #define USBVISION_AUDIO_TV 1
59 #define USBVISION_AUDIO_RADIO 2
60 #define USBVISION_AUDIO_MUTE 3
61#define USBVISION_SER_MODE 0x07
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62 #define USBVISION_CLK_OUT (1 << 0)
63 #define USBVISION_DAT_IO (1 << 1)
64 #define USBVISION_SENS_OUT (1 << 2)
65 #define USBVISION_SER_MODE_SOFT (0 << 4)
66 #define USBVISION_SER_MODE_SIO (1 << 4)
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67#define USBVISION_SER_ADRS 0x08
68#define USBVISION_SER_CONT 0x09
69#define USBVISION_SER_DAT1 0x0A
70#define USBVISION_SER_DAT2 0x0B
71#define USBVISION_SER_DAT3 0x0C
72#define USBVISION_SER_DAT4 0x0D
73#define USBVISION_EE_DATA 0x0E
74#define USBVISION_EE_LSBAD 0x0F
75#define USBVISION_EE_CONT 0x10
76#define USBVISION_DRM_CONT 0x12
77 #define USBVISION_REF (1 << 0)
78 #define USBVISION_RES_UR (1 << 2)
79 #define USBVISION_RES_FDL (1 << 3)
80 #define USBVISION_RES_VDW (1 << 4)
81#define USBVISION_DRM_PRM1 0x13
82#define USBVISION_DRM_PRM2 0x14
83#define USBVISION_DRM_PRM3 0x15
84#define USBVISION_DRM_PRM4 0x16
85#define USBVISION_DRM_PRM5 0x17
86#define USBVISION_DRM_PRM6 0x18
87#define USBVISION_DRM_PRM7 0x19
88#define USBVISION_DRM_PRM8 0x1A
89#define USBVISION_VIN_REG1 0x1B
90 #define USBVISION_8_422_SYNC 0x01
91 #define USBVISION_16_422_SYNC 0x02
92 #define USBVISION_VSNC_POL (1 << 3)
93 #define USBVISION_HSNC_POL (1 << 4)
94 #define USBVISION_FID_POL (1 << 5)
95 #define USBVISION_HVALID_PO (1 << 6)
96 #define USBVISION_VCLK_POL (1 << 7)
97#define USBVISION_VIN_REG2 0x1C
98 #define USBVISION_AUTO_FID (1 << 0)
99 #define USBVISION_NONE_INTER (1 << 1)
100 #define USBVISION_NOHVALID (1 << 2)
101 #define USBVISION_UV_ID (1 << 3)
102 #define USBVISION_FIX_2C (1 << 4)
103 #define USBVISION_SEND_FID (1 << 5)
104 #define USBVISION_KEEP_BLANK (1 << 7)
105#define USBVISION_LXSIZE_I 0x1D
106#define USBVISION_MXSIZE_I 0x1E
107#define USBVISION_LYSIZE_I 0x1F
108#define USBVISION_MYSIZE_I 0x20
109#define USBVISION_LX_OFFST 0x21
110#define USBVISION_MX_OFFST 0x22
111#define USBVISION_LY_OFFST 0x23
112#define USBVISION_MY_OFFST 0x24
113#define USBVISION_FRM_RATE 0x25
114#define USBVISION_LXSIZE_O 0x26
115#define USBVISION_MXSIZE_O 0x27
116#define USBVISION_LYSIZE_O 0x28
117#define USBVISION_MYSIZE_O 0x29
118#define USBVISION_FILT_CONT 0x2A
119#define USBVISION_VO_MODE 0x2B
120#define USBVISION_INTRA_CYC 0x2C
121#define USBVISION_STRIP_SZ 0x2D
122#define USBVISION_FORCE_INTRA 0x2E
123#define USBVISION_FORCE_UP 0x2F
124#define USBVISION_BUF_THR 0x30
125#define USBVISION_DVI_YUV 0x31
126#define USBVISION_AUDIO_CONT 0x32
127#define USBVISION_AUD_PK_LEN 0x33
128#define USBVISION_BLK_PK_LEN 0x34
129#define USBVISION_PCM_THR1 0x38
130#define USBVISION_PCM_THR2 0x39
131#define USBVISION_DIST_THR_L 0x3A
132#define USBVISION_DIST_THR_H 0x3B
133#define USBVISION_MAX_DIST_L 0x3C
134#define USBVISION_MAX_DIST_H 0x3D
135#define USBVISION_OP_CODE 0x33
136
137#define MAX_BYTES_PER_PIXEL 4
138
139#define MIN_FRAME_WIDTH 64
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140#define MAX_USB_WIDTH 320 /* 384 */
141#define MAX_FRAME_WIDTH 320 /* 384 */ /* streching sometimes causes crashes*/
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142
143#define MIN_FRAME_HEIGHT 48
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144#define MAX_USB_HEIGHT 240 /* 288 */
145#define MAX_FRAME_HEIGHT 240 /* 288 */ /* Streching sometimes causes crashes*/
781aa1d1 146
6d6a48e5 147#define MAX_FRAME_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * MAX_BYTES_PER_PIXEL)
52cb0bf2 148#define USBVISION_CLIPMASK_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) /* bytesize of clipmask */
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149
150#define USBVISION_URB_FRAMES 32
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151
152#define USBVISION_NUM_HEADERMARKER 20
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153#define USBVISION_NUMFRAMES 3 /* Maximum number of frames an application can get */
154#define USBVISION_NUMSBUF 2 /* Dimensioning the USB S buffering */
781aa1d1 155
6d6a48e5 156#define USBVISION_POWEROFF_TIME (3 * HZ) /* 3 seconds */
781aa1d1 157
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158
159#define FRAMERATE_MIN 0
160#define FRAMERATE_MAX 31
161
162enum {
163 ISOC_MODE_YUV422 = 0x03,
164 ISOC_MODE_YUV420 = 0x14,
165 ISOC_MODE_COMPRESS = 0x60,
166};
167
781aa1d1 168/* This macro restricts an int variable to an inclusive range */
6d6a48e5 169#define RESTRICT_TO_RANGE(v, mi, ma) \
534d0326 170 { if (((int)v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); }
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171
172/*
173 * We use macros to do YUV -> RGB conversion because this is
174 * very important for speed and totally unimportant for size.
175 *
176 * YUV -> RGB Conversion
177 * ---------------------
178 *
179 * B = 1.164*(Y-16) + 2.018*(V-128)
180 * G = 1.164*(Y-16) - 0.813*(U-128) - 0.391*(V-128)
181 * R = 1.164*(Y-16) + 1.596*(U-128)
182 *
183 * If you fancy integer arithmetics (as you should), hear this:
184 *
185 * 65536*B = 76284*(Y-16) + 132252*(V-128)
186 * 65536*G = 76284*(Y-16) - 53281*(U-128) - 25625*(V-128)
187 * 65536*R = 76284*(Y-16) + 104595*(U-128)
188 *
189 * Make sure the output values are within [0..255] range.
190 */
191#define LIMIT_RGB(x) (((x) < 0) ? 0 : (((x) > 255) ? 255 : (x)))
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192#define YUV_TO_RGB_BY_THE_BOOK(my, mu, mv, mr, mg, mb) { \
193 int mm_y, mm_yc, mm_u, mm_v, mm_r, mm_g, mm_b; \
194 mm_y = (my) - 16; \
195 mm_u = (mu) - 128; \
196 mm_v = (mv) - 128; \
197 mm_yc = mm_y * 76284; \
198 mm_b = (mm_yc + 132252 * mm_v) >> 16; \
199 mm_g = (mm_yc - 53281 * mm_u - 25625 * mm_v) >> 16; \
200 mm_r = (mm_yc + 104595 * mm_u) >> 16; \
201 mb = LIMIT_RGB(mm_b); \
202 mg = LIMIT_RGB(mm_g); \
203 mr = LIMIT_RGB(mm_r); \
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204}
205
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206/*
207 * This macro checks if usbvision is still operational. The 'usbvision'
208 * pointer must be valid, usbvision->dev must be valid, we are not
209 * removing the device and the device has not erred on us.
210 */
211#define USBVISION_IS_OPERATIONAL(udevice) (\
212 (udevice != NULL) && \
213 ((udevice)->dev != NULL) && \
214 ((udevice)->last_error == 0) && \
215 (!(udevice)->remove_pending))
216
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217#define I2C_USB_ADAP_MAX 16
218
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219#define USBVISION_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_M)
220
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221/* ----------------------------------------------------------------- */
222/* usbvision video structures */
223/* ----------------------------------------------------------------- */
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224enum scan_state {
225 scan_state_scanning, /* Scanning for header */
226 scan_state_lines /* Parsing lines */
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227};
228
229/* Completion states of the data parser */
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230enum parse_state {
231 parse_state_continue, /* Just parse next item */
232 parse_state_next_frame, /* Frame done, send it to V4L */
233 parse_state_out, /* Not enough data for frame */
234 parse_state_end_parse /* End parsing */
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235};
236
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237enum frame_state {
238 frame_state_unused, /* Unused (no MCAPTURE) */
239 frame_state_ready, /* Ready to start grabbing */
240 frame_state_grabbing, /* In the process of being grabbed into */
241 frame_state_done, /* Finished grabbing, but not been synced yet */
242 frame_state_done_hold, /* Are syncing or reading */
243 frame_state_error, /* Something bad happened while processing */
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244};
245
f2242ee5 246/* stream states */
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247enum stream_state {
248 stream_off, /* Driver streaming is completely OFF */
249 stream_idle, /* Driver streaming is ready to be put ON by the application */
250 stream_interrupt, /* Driver streaming must be interrupted */
251 stream_on, /* Driver streaming is put ON by the application */
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252};
253
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254enum isoc_state {
255 isoc_state_in_frame, /* Isoc packet is member of frame */
256 isoc_state_no_frame, /* Isoc packet is not member of any frame */
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257};
258
259struct usb_device;
260
261struct usbvision_sbuf {
262 char *data;
263 struct urb *urb;
264};
265
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266#define USBVISION_MAGIC_1 0x55
267#define USBVISION_MAGIC_2 0xAA
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268#define USBVISION_HEADER_LENGTH 0x0c
269#define USBVISION_SAA7111_ADDR 0x48
270#define USBVISION_SAA7113_ADDR 0x4a
271#define USBVISION_IIC_LRACK 0x20
272#define USBVISION_IIC_LRNACK 0x30
273#define USBVISION_FRAME_FORMAT_PARAM_INTRA (1<<7)
274
6714b012 275struct usbvision_v4l2_format_st {
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276 int supported;
277 int bytes_per_pixel;
278 int depth;
279 int format;
280 char *desc;
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281};
282#define USBVISION_SUPPORTED_PALETTES ARRAY_SIZE(usbvision_v4l2_format)
283
284struct usbvision_frame_header {
285 unsigned char magic_1; /* 0 magic */
286 unsigned char magic_2; /* 1 magic */
5490a7cb 287 unsigned char header_length; /* 2 */
52cb0bf2 288 unsigned char frame_num; /* 3 */
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289 unsigned char frame_phase; /* 4 */
290 unsigned char frame_latency; /* 5 */
291 unsigned char data_format; /* 6 */
292 unsigned char format_param; /* 7 */
293 unsigned char frame_width_lo; /* 8 */
294 unsigned char frame_width_hi; /* 9 */
295 unsigned char frame_height_lo; /* 10 */
296 unsigned char frame_height_hi; /* 11 */
297 __u16 frame_width; /* 8 - 9 after endian correction*/
298 __u16 frame_height; /* 10 - 11 after endian correction*/
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299};
300
301struct usbvision_frame {
302 char *data; /* Frame buffer */
5490a7cb 303 struct usbvision_frame_header isoc_header; /* Header from stream */
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304
305 int width; /* Width application is expecting */
306 int height; /* Height */
f2242ee5 307 int index; /* Frame index */
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308 int frmwidth; /* Width the frame actually is */
309 int frmheight; /* Height */
310
311 volatile int grabstate; /* State of grabbing */
312 int scanstate; /* State of scanning */
313
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314 struct list_head frame;
315
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316 int curline; /* Line of frame we're working on */
317
318 long scanlength; /* uncompressed, raw data length of frame */
319 long bytes_read; /* amount of scanlength that has been read from data */
320 struct usbvision_v4l2_format_st v4l2_format; /* format the user needs*/
321 int v4l2_linesize; /* bytes for one videoline*/
f2242ee5 322 struct timeval timestamp;
52cb0bf2 323 int sequence; /* How many video frames we send to user */
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324};
325
326#define CODEC_SAA7113 7113
327#define CODEC_SAA7111 7111
240d57bb 328#define CODEC_WEBCAM 3000
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329#define BRIDGE_NT1003 1003
330#define BRIDGE_NT1004 1004
331#define BRIDGE_NT1005 1005
332
6714b012 333struct usbvision_device_data_st {
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334 __u64 video_norm;
335 const char *model_string;
336 int interface; /* to handle special interface number like BELKIN and Hauppauge WinTV-USB II */
337 __u16 codec;
338 unsigned video_channels:3;
339 unsigned audio_channels:2;
340 unsigned radio:1;
c682b3a7 341 unsigned vbi:1;
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342 unsigned tuner:1;
343 unsigned vin_reg1_override:1; /* Override default value with */
344 unsigned vin_reg2_override:1; /* vin_reg1, vin_reg2, etc. */
345 unsigned dvi_yuv_override:1;
346 __u8 vin_reg1;
347 __u8 vin_reg2;
348 __u8 dvi_yuv;
349 __u8 tuner_type;
350 __s16 x_offset;
351 __s16 y_offset;
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352};
353
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354/* Declared on usbvision-cards.c */
355extern struct usbvision_device_data_st usbvision_device_data[];
356extern struct usb_device_id usbvision_table[];
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357
358struct usb_usbvision {
1df79537 359 struct v4l2_device v4l2_dev;
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360 struct video_device vdev; /* Video Device */
361 struct video_device rdev; /* Radio Device */
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362
363 /* i2c Declaration Section*/
364 struct i2c_adapter i2c_adap;
8403472f 365 int registered_i2c;
781aa1d1 366
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367 struct urb *ctrl_urb;
368 unsigned char ctrl_urb_buffer[8];
369 int ctrl_urb_busy;
370 struct usb_ctrlrequest ctrl_urb_setup;
52cb0bf2 371 wait_queue_head_t ctrl_urb_wq; /* Processes waiting */
781aa1d1 372
483dfdb6 373 /* configuration part */
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374 int have_tuner;
375 int tuner_type;
52cb0bf2 376 int bridge_type; /* NT1003, NT1004, NT1005 */
781aa1d1 377 int radio;
52cb0bf2 378 int video_inputs; /* # of inputs */
781aa1d1 379 unsigned long freq;
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380 int audio_mute;
381 int audio_channel;
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382 int isoc_mode; /* format of video data for the usb isoc-transfer */
383 unsigned int nr; /* Number of the device */
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384
385 /* Device structure */
386 struct usb_device *dev;
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387 /* usb transfer */
388 int num_alt; /* Number of alternative settings */
5490a7cb 389 unsigned int *alt_max_pkt_size; /* array of max_packet_size */
781aa1d1 390 unsigned char iface; /* Video interface number */
52cb0bf2 391 unsigned char iface_alt; /* Alt settings */
5490a7cb 392 unsigned char vin_reg2_preset;
c627b9d1 393 struct mutex v4l2_lock;
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394 int power; /* is the device powered on? */
395 int user; /* user count for exclusive use */
781aa1d1 396 int initialized; /* Had we already sent init sequence? */
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397 int dev_model; /* What type of USBVISION device we got? */
398 enum stream_state streaming; /* Are we streaming Isochronous? */
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399 int last_error; /* What calamity struck us? */
400 int curwidth; /* width of the frame the device is currently set to*/
6d6a48e5 401 int curheight; /* height of the frame the device is currently set to*/
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402 int stretch_width; /* stretch-factor for frame width (from usb to screen)*/
403 int stretch_height; /* stretch-factor for frame height (from usb to screen)*/
404 char *fbuf; /* Videodev buffer area for mmap*/
405 int max_frame_size; /* Bytes in one video frame */
406 int fbuf_size; /* Videodev buffer size */
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407 spinlock_t queue_lock; /* spinlock for protecting mods on inqueue and outqueue */
408 struct list_head inqueue, outqueue; /* queued frame list and ready to dequeue frame list */
409 wait_queue_head_t wait_frame; /* Processes waiting */
410 wait_queue_head_t wait_stream; /* Processes waiting */
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411 struct usbvision_frame *cur_frame; /* pointer to current frame, set by usbvision_find_header */
412 struct usbvision_frame frame[USBVISION_NUMFRAMES]; /* frame buffer */
413 int num_frames; /* number of frames allocated */
414 struct usbvision_sbuf sbuf[USBVISION_NUMSBUF]; /* S buffering */
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415 volatile int remove_pending; /* If set then about to exit */
416
417 /* Scratch space from the Isochronous Pipe.*/
418 unsigned char *scratch;
419 int scratch_read_ptr;
420 int scratch_write_ptr;
421 int scratch_headermarker[USBVISION_NUM_HEADERMARKER];
422 int scratch_headermarker_read_ptr;
423 int scratch_headermarker_write_ptr;
5490a7cb 424 enum isoc_state isocstate;
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425 struct usbvision_v4l2_format_st palette;
426
427 struct v4l2_capability vcap; /* Video capabilities */
f2242ee5 428 unsigned int ctl_input; /* selected input */
5490a7cb 429 v4l2_std_id tvnorm_id; /* selected tv norm */
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430 unsigned char video_endp; /* 0x82 for USBVISION devices based */
431
52cb0bf2 432 /* Decompression stuff: */
5490a7cb 433 unsigned char *intra_frame_buffer; /* Buffer for reference frame */
6d6a48e5 434 int block_pos; /* for test only */
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435 int request_intra; /* 0 = normal; 1 = intra frame is requested; */
436 int last_isoc_frame_num; /* check for lost isoc frames */
437 int isoc_packet_size; /* need to calculate used_bandwidth */
438 int used_bandwidth; /* used bandwidth 0-100%, need to set compr_level */
439 int compr_level; /* How strong (100) or weak (0) is compression */
440 int last_compr_level; /* How strong (100) or weak (0) was compression */
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441 int usb_bandwidth; /* Mbit/s */
442
781aa1d1 443 /* Statistics that can be overlayed on the screen */
52cb0bf2 444 unsigned long isoc_urb_count; /* How many URBs we received so far */
781aa1d1 445 unsigned long urb_length; /* Length of last URB */
5490a7cb 446 unsigned long isoc_data_count; /* How many bytes we received */
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447 unsigned long header_count; /* How many frame headers we found */
448 unsigned long scratch_ovf_count; /* How many times we overflowed scratch */
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449 unsigned long isoc_skip_count; /* How many empty ISO packets received */
450 unsigned long isoc_err_count; /* How many bad ISO packets received */
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451 unsigned long isoc_packet_count; /* How many packets we totally got */
452 unsigned long time_in_irq; /* How long do we need for interrupt */
5490a7cb 453 int isoc_measure_bandwidth_count;
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454 int frame_num; /* How many video frames we send to user */
455 int max_strip_len; /* How big is the biggest strip */
5490a7cb 456 int comprblock_pos;
52cb0bf2 457 int strip_len_errors; /* How many times was block_pos greater than strip_len */
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458 int strip_magic_errors;
459 int strip_line_number_errors;
460 int compr_block_types[4];
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461};
462
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463static inline struct usb_usbvision *to_usbvision(struct v4l2_device *v4l2_dev)
464{
465 return container_of(v4l2_dev, struct usb_usbvision, v4l2_dev);
466}
467
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468#define call_all(usbvision, o, f, args...) \
469 v4l2_device_call_all(&usbvision->v4l2_dev, 0, o, f, ##args)
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470
471/* --------------------------------------------------------------- */
472/* defined in usbvision-i2c.c */
473/* i2c-algo-usb declaration */
474/* --------------------------------------------------------------- */
475
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476/* ----------------------------------------------------------------------- */
477/* usbvision specific I2C functions */
478/* ----------------------------------------------------------------------- */
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479int usbvision_i2c_register(struct usb_usbvision *usbvision);
480int usbvision_i2c_unregister(struct usb_usbvision *usbvision);
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481
482/* defined in usbvision-core.c */
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483int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg);
484int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
485 unsigned char value);
486
6f78e186 487int usbvision_frames_alloc(struct usb_usbvision *usbvision, int number_of_frames);
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488void usbvision_frames_free(struct usb_usbvision *usbvision);
489int usbvision_scratch_alloc(struct usb_usbvision *usbvision);
490void usbvision_scratch_free(struct usb_usbvision *usbvision);
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491int usbvision_decompress_alloc(struct usb_usbvision *usbvision);
492void usbvision_decompress_free(struct usb_usbvision *usbvision);
493
6d6a48e5 494int usbvision_setup(struct usb_usbvision *usbvision, int format);
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495int usbvision_init_isoc(struct usb_usbvision *usbvision);
496int usbvision_restart_isoc(struct usb_usbvision *usbvision);
497void usbvision_stop_isoc(struct usb_usbvision *usbvision);
2a9f8b5d 498int usbvision_set_alternate(struct usb_usbvision *dev);
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5490a7cb 500int usbvision_set_audio(struct usb_usbvision *usbvision, int audio_channel);
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501int usbvision_audio_off(struct usb_usbvision *usbvision);
502
503int usbvision_begin_streaming(struct usb_usbvision *usbvision);
504void usbvision_empty_framequeues(struct usb_usbvision *dev);
505int usbvision_stream_interrupt(struct usb_usbvision *dev);
506
507int usbvision_muxsel(struct usb_usbvision *usbvision, int channel);
508int usbvision_set_input(struct usb_usbvision *usbvision);
509int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height);
510
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511int usbvision_power_off(struct usb_usbvision *usbvision);
512int usbvision_power_on(struct usb_usbvision *usbvision);
513
781aa1d1 514#endif /* __LINUX_USBVISION_H */