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1/*
2 * USBVISION.H
3 * usbvision header file
4 *
5 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
6 * Dwaine Garden <dwainegarden@rogers.com>
7 *
8 *
9 * Report problems to v4l MailingList: linux-media@vger.kernel.org
10 *
11 * This module is part of usbvision driver project.
12 * Updates to driver completed by Dwaine P. Garden
13 * v4l2 conversion by Thierry Merle <thierry.merle@free.fr>
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>
35#include <linux/usb.h>
36#include <linux/i2c.h>
37#include <linux/mutex.h>
38#include <media/v4l2-device.h>
39#include <media/v4l2-ctrls.h>
40#include <media/tuner.h>
41#include <linux/videodev2.h>
42
43#define USBVISION_DEBUG /* Turn on debug messages */
44
45#define USBVISION_PWR_REG 0x00
46 #define USBVISION_SSPND_EN (1 << 1)
47 #define USBVISION_RES2 (1 << 2)
48 #define USBVISION_PWR_VID (1 << 5)
49 #define USBVISION_E2_EN (1 << 7)
50#define USBVISION_CONFIG_REG 0x01
51#define USBVISION_ADRS_REG 0x02
52#define USBVISION_ALTER_REG 0x03
53#define USBVISION_FORCE_ALTER_REG 0x04
54#define USBVISION_STATUS_REG 0x05
55#define USBVISION_IOPIN_REG 0x06
56 #define USBVISION_IO_1 (1 << 0)
57 #define USBVISION_IO_2 (1 << 1)
58 #define USBVISION_AUDIO_IN 0
59 #define USBVISION_AUDIO_TV 1
60 #define USBVISION_AUDIO_RADIO 2
61 #define USBVISION_AUDIO_MUTE 3
62#define USBVISION_SER_MODE 0x07
63 #define USBVISION_CLK_OUT (1 << 0)
64 #define USBVISION_DAT_IO (1 << 1)
65 #define USBVISION_SENS_OUT (1 << 2)
66 #define USBVISION_SER_MODE_SOFT (0 << 4)
67 #define USBVISION_SER_MODE_SIO (1 << 4)
68#define USBVISION_SER_ADRS 0x08
69#define USBVISION_SER_CONT 0x09
70#define USBVISION_SER_DAT1 0x0A
71#define USBVISION_SER_DAT2 0x0B
72#define USBVISION_SER_DAT3 0x0C
73#define USBVISION_SER_DAT4 0x0D
74#define USBVISION_EE_DATA 0x0E
75#define USBVISION_EE_LSBAD 0x0F
76#define USBVISION_EE_CONT 0x10
77#define USBVISION_DRM_CONT 0x12
78 #define USBVISION_REF (1 << 0)
79 #define USBVISION_RES_UR (1 << 2)
80 #define USBVISION_RES_FDL (1 << 3)
81 #define USBVISION_RES_VDW (1 << 4)
82#define USBVISION_DRM_PRM1 0x13
83#define USBVISION_DRM_PRM2 0x14
84#define USBVISION_DRM_PRM3 0x15
85#define USBVISION_DRM_PRM4 0x16
86#define USBVISION_DRM_PRM5 0x17
87#define USBVISION_DRM_PRM6 0x18
88#define USBVISION_DRM_PRM7 0x19
89#define USBVISION_DRM_PRM8 0x1A
90#define USBVISION_VIN_REG1 0x1B
91 #define USBVISION_8_422_SYNC 0x01
92 #define USBVISION_16_422_SYNC 0x02
93 #define USBVISION_VSNC_POL (1 << 3)
94 #define USBVISION_HSNC_POL (1 << 4)
95 #define USBVISION_FID_POL (1 << 5)
96 #define USBVISION_HVALID_PO (1 << 6)
97 #define USBVISION_VCLK_POL (1 << 7)
98#define USBVISION_VIN_REG2 0x1C
99 #define USBVISION_AUTO_FID (1 << 0)
100 #define USBVISION_NONE_INTER (1 << 1)
101 #define USBVISION_NOHVALID (1 << 2)
102 #define USBVISION_UV_ID (1 << 3)
103 #define USBVISION_FIX_2C (1 << 4)
104 #define USBVISION_SEND_FID (1 << 5)
105 #define USBVISION_KEEP_BLANK (1 << 7)
106#define USBVISION_LXSIZE_I 0x1D
107#define USBVISION_MXSIZE_I 0x1E
108#define USBVISION_LYSIZE_I 0x1F
109#define USBVISION_MYSIZE_I 0x20
110#define USBVISION_LX_OFFST 0x21
111#define USBVISION_MX_OFFST 0x22
112#define USBVISION_LY_OFFST 0x23
113#define USBVISION_MY_OFFST 0x24
114#define USBVISION_FRM_RATE 0x25
115#define USBVISION_LXSIZE_O 0x26
116#define USBVISION_MXSIZE_O 0x27
117#define USBVISION_LYSIZE_O 0x28
118#define USBVISION_MYSIZE_O 0x29
119#define USBVISION_FILT_CONT 0x2A
120#define USBVISION_VO_MODE 0x2B
121#define USBVISION_INTRA_CYC 0x2C
122#define USBVISION_STRIP_SZ 0x2D
123#define USBVISION_FORCE_INTRA 0x2E
124#define USBVISION_FORCE_UP 0x2F
125#define USBVISION_BUF_THR 0x30
126#define USBVISION_DVI_YUV 0x31
127#define USBVISION_AUDIO_CONT 0x32
128#define USBVISION_AUD_PK_LEN 0x33
129#define USBVISION_BLK_PK_LEN 0x34
130#define USBVISION_PCM_THR1 0x38
131#define USBVISION_PCM_THR2 0x39
132#define USBVISION_DIST_THR_L 0x3A
133#define USBVISION_DIST_THR_H 0x3B
134#define USBVISION_MAX_DIST_L 0x3C
135#define USBVISION_MAX_DIST_H 0x3D
136#define USBVISION_OP_CODE 0x33
137
138#define MAX_BYTES_PER_PIXEL 4
139
140#define MIN_FRAME_WIDTH 64
141#define MAX_USB_WIDTH 320 /* 384 */
142#define MAX_FRAME_WIDTH 320 /* 384 */ /* streching sometimes causes crashes*/
143
144#define MIN_FRAME_HEIGHT 48
145#define MAX_USB_HEIGHT 240 /* 288 */
146#define MAX_FRAME_HEIGHT 240 /* 288 */ /* Streching sometimes causes crashes*/
147
148#define MAX_FRAME_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * MAX_BYTES_PER_PIXEL)
149#define USBVISION_CLIPMASK_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) /* bytesize of clipmask */
150
151#define USBVISION_URB_FRAMES 32
152
153#define USBVISION_NUM_HEADERMARKER 20
154#define USBVISION_NUMFRAMES 3 /* Maximum number of frames an application can get */
155#define USBVISION_NUMSBUF 2 /* Dimensioning the USB S buffering */
156
157#define USBVISION_POWEROFF_TIME (3 * HZ) /* 3 seconds */
158
159
160#define FRAMERATE_MIN 0
161#define FRAMERATE_MAX 31
162
163enum {
164 ISOC_MODE_YUV422 = 0x03,
165 ISOC_MODE_YUV420 = 0x14,
166 ISOC_MODE_COMPRESS = 0x60,
167};
168
169/* This macro restricts an int variable to an inclusive range */
170#define RESTRICT_TO_RANGE(v, mi, ma) \
171 { if (((int)v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); }
172
173/*
174 * We use macros to do YUV -> RGB conversion because this is
175 * very important for speed and totally unimportant for size.
176 *
177 * YUV -> RGB Conversion
178 * ---------------------
179 *
180 * B = 1.164*(Y-16) + 2.018*(V-128)
181 * G = 1.164*(Y-16) - 0.813*(U-128) - 0.391*(V-128)
182 * R = 1.164*(Y-16) + 1.596*(U-128)
183 *
184 * If you fancy integer arithmetics (as you should), hear this:
185 *
186 * 65536*B = 76284*(Y-16) + 132252*(V-128)
187 * 65536*G = 76284*(Y-16) - 53281*(U-128) - 25625*(V-128)
188 * 65536*R = 76284*(Y-16) + 104595*(U-128)
189 *
190 * Make sure the output values are within [0..255] range.
191 */
192#define LIMIT_RGB(x) (((x) < 0) ? 0 : (((x) > 255) ? 255 : (x)))
193#define YUV_TO_RGB_BY_THE_BOOK(my, mu, mv, mr, mg, mb) { \
194 int mm_y, mm_yc, mm_u, mm_v, mm_r, mm_g, mm_b; \
195 mm_y = (my) - 16; \
196 mm_u = (mu) - 128; \
197 mm_v = (mv) - 128; \
198 mm_yc = mm_y * 76284; \
199 mm_b = (mm_yc + 132252 * mm_v) >> 16; \
200 mm_g = (mm_yc - 53281 * mm_u - 25625 * mm_v) >> 16; \
201 mm_r = (mm_yc + 104595 * mm_u) >> 16; \
202 mb = LIMIT_RGB(mm_b); \
203 mg = LIMIT_RGB(mm_g); \
204 mr = LIMIT_RGB(mm_r); \
205}
206
207/*
208 * This macro checks if usbvision is still operational. The 'usbvision'
209 * pointer must be valid, usbvision->dev must be valid, we are not
210 * removing the device and the device has not erred on us.
211 */
212#define USBVISION_IS_OPERATIONAL(udevice) (\
213 (udevice != NULL) && \
214 ((udevice)->dev != NULL) && \
215 ((udevice)->last_error == 0) && \
216 (!(udevice)->remove_pending))
217
218#define I2C_USB_ADAP_MAX 16
219
220#define USBVISION_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_M)
221
222/* ----------------------------------------------------------------- */
223/* usbvision video structures */
224/* ----------------------------------------------------------------- */
225enum scan_state {
226 scan_state_scanning, /* Scanning for header */
227 scan_state_lines /* Parsing lines */
228};
229
230/* Completion states of the data parser */
231enum parse_state {
232 parse_state_continue, /* Just parse next item */
233 parse_state_next_frame, /* Frame done, send it to V4L */
234 parse_state_out, /* Not enough data for frame */
235 parse_state_end_parse /* End parsing */
236};
237
238enum frame_state {
239 frame_state_unused, /* Unused (no MCAPTURE) */
240 frame_state_ready, /* Ready to start grabbing */
241 frame_state_grabbing, /* In the process of being grabbed into */
242 frame_state_done, /* Finished grabbing, but not been synced yet */
243 frame_state_done_hold, /* Are syncing or reading */
244 frame_state_error, /* Something bad happened while processing */
245};
246
247/* stream states */
248enum stream_state {
249 stream_off, /* Driver streaming is completely OFF */
250 stream_idle, /* Driver streaming is ready to be put ON by the application */
251 stream_interrupt, /* Driver streaming must be interrupted */
252 stream_on, /* Driver streaming is put ON by the application */
253};
254
255enum isoc_state {
256 isoc_state_in_frame, /* Isoc packet is member of frame */
257 isoc_state_no_frame, /* Isoc packet is not member of any frame */
258};
259
260struct usb_device;
261
262struct usbvision_sbuf {
263 char *data;
264 struct urb *urb;
265};
266
267#define USBVISION_MAGIC_1 0x55
268#define USBVISION_MAGIC_2 0xAA
269#define USBVISION_HEADER_LENGTH 0x0c
270#define USBVISION_SAA7111_ADDR 0x48
271#define USBVISION_SAA7113_ADDR 0x4a
272#define USBVISION_IIC_LRACK 0x20
273#define USBVISION_IIC_LRNACK 0x30
274#define USBVISION_FRAME_FORMAT_PARAM_INTRA (1<<7)
275
276struct usbvision_v4l2_format_st {
277 int supported;
278 int bytes_per_pixel;
279 int depth;
280 int format;
281 char *desc;
282};
283#define USBVISION_SUPPORTED_PALETTES ARRAY_SIZE(usbvision_v4l2_format)
284
285struct usbvision_frame_header {
286 unsigned char magic_1; /* 0 magic */
287 unsigned char magic_2; /* 1 magic */
288 unsigned char header_length; /* 2 */
289 unsigned char frame_num; /* 3 */
290 unsigned char frame_phase; /* 4 */
291 unsigned char frame_latency; /* 5 */
292 unsigned char data_format; /* 6 */
293 unsigned char format_param; /* 7 */
294 unsigned char frame_width_lo; /* 8 */
295 unsigned char frame_width_hi; /* 9 */
296 unsigned char frame_height_lo; /* 10 */
297 unsigned char frame_height_hi; /* 11 */
298 __u16 frame_width; /* 8 - 9 after endian correction*/
299 __u16 frame_height; /* 10 - 11 after endian correction*/
300};
301
302struct usbvision_frame {
303 char *data; /* Frame buffer */
304 struct usbvision_frame_header isoc_header; /* Header from stream */
305
306 int width; /* Width application is expecting */
307 int height; /* Height */
308 int index; /* Frame index */
309 int frmwidth; /* Width the frame actually is */
310 int frmheight; /* Height */
311
312 volatile int grabstate; /* State of grabbing */
313 int scanstate; /* State of scanning */
314
315 struct list_head frame;
316
317 int curline; /* Line of frame we're working on */
318
319 long scanlength; /* uncompressed, raw data length of frame */
320 long bytes_read; /* amount of scanlength that has been read from data */
321 struct usbvision_v4l2_format_st v4l2_format; /* format the user needs*/
322 int v4l2_linesize; /* bytes for one videoline*/
323 struct timeval timestamp;
324 int sequence; /* How many video frames we send to user */
325};
326
327#define CODEC_SAA7113 7113
328#define CODEC_SAA7111 7111
329#define CODEC_WEBCAM 3000
330#define BRIDGE_NT1003 1003
331#define BRIDGE_NT1004 1004
332#define BRIDGE_NT1005 1005
333
334struct usbvision_device_data_st {
335 __u64 video_norm;
336 const char *model_string;
337 int interface; /* to handle special interface number like BELKIN and Hauppauge WinTV-USB II */
338 __u16 codec;
339 unsigned video_channels:3;
340 unsigned audio_channels:2;
341 unsigned radio:1;
342 unsigned vbi:1;
343 unsigned tuner:1;
344 unsigned vin_reg1_override:1; /* Override default value with */
345 unsigned vin_reg2_override:1; /* vin_reg1, vin_reg2, etc. */
346 unsigned dvi_yuv_override:1;
347 __u8 vin_reg1;
348 __u8 vin_reg2;
349 __u8 dvi_yuv;
350 __u8 tuner_type;
351 __s16 x_offset;
352 __s16 y_offset;
353};
354
355/* Declared on usbvision-cards.c */
356extern struct usbvision_device_data_st usbvision_device_data[];
357extern struct usb_device_id usbvision_table[];
358
359struct usb_usbvision {
360 struct v4l2_device v4l2_dev;
361 struct v4l2_ctrl_handler hdl;
362 struct video_device vdev; /* Video Device */
363 struct video_device rdev; /* Radio Device */
364
365 /* i2c Declaration Section*/
366 struct i2c_adapter i2c_adap;
367 int registered_i2c;
368
369 struct urb *ctrl_urb;
370 unsigned char ctrl_urb_buffer[8];
371 int ctrl_urb_busy;
372 struct usb_ctrlrequest ctrl_urb_setup;
373 wait_queue_head_t ctrl_urb_wq; /* Processes waiting */
374
375 /* configuration part */
376 int have_tuner;
377 int tuner_type;
378 int bridge_type; /* NT1003, NT1004, NT1005 */
379 int radio;
380 int video_inputs; /* # of inputs */
381 unsigned long radio_freq;
382 unsigned long tv_freq;
383 int audio_mute;
384 int audio_channel;
385 int isoc_mode; /* format of video data for the usb isoc-transfer */
386 unsigned int nr; /* Number of the device */
387
388 /* Device structure */
389 struct usb_device *dev;
390 /* usb transfer */
391 int num_alt; /* Number of alternative settings */
392 unsigned int *alt_max_pkt_size; /* array of max_packet_size */
393 unsigned char iface; /* Video interface number */
394 unsigned char iface_alt; /* Alt settings */
395 unsigned char vin_reg2_preset;
396 struct mutex v4l2_lock;
397 int power; /* is the device powered on? */
398 int user; /* user count for exclusive use */
399 int initialized; /* Had we already sent init sequence? */
400 int dev_model; /* What type of USBVISION device we got? */
401 enum stream_state streaming; /* Are we streaming Isochronous? */
402 int last_error; /* What calamity struck us? */
403 int curwidth; /* width of the frame the device is currently set to*/
404 int curheight; /* height of the frame the device is currently set to*/
405 int stretch_width; /* stretch-factor for frame width (from usb to screen)*/
406 int stretch_height; /* stretch-factor for frame height (from usb to screen)*/
407 char *fbuf; /* Videodev buffer area for mmap*/
408 int max_frame_size; /* Bytes in one video frame */
409 int fbuf_size; /* Videodev buffer size */
410 spinlock_t queue_lock; /* spinlock for protecting mods on inqueue and outqueue */
411 struct list_head inqueue, outqueue; /* queued frame list and ready to dequeue frame list */
412 wait_queue_head_t wait_frame; /* Processes waiting */
413 wait_queue_head_t wait_stream; /* Processes waiting */
414 struct usbvision_frame *cur_frame; /* pointer to current frame, set by usbvision_find_header */
415 struct usbvision_frame frame[USBVISION_NUMFRAMES]; /* frame buffer */
416 int num_frames; /* number of frames allocated */
417 struct usbvision_sbuf sbuf[USBVISION_NUMSBUF]; /* S buffering */
418 volatile int remove_pending; /* If set then about to exit */
419
420 /* Scratch space from the Isochronous Pipe.*/
421 unsigned char *scratch;
422 int scratch_read_ptr;
423 int scratch_write_ptr;
424 int scratch_headermarker[USBVISION_NUM_HEADERMARKER];
425 int scratch_headermarker_read_ptr;
426 int scratch_headermarker_write_ptr;
427 enum isoc_state isocstate;
428 struct usbvision_v4l2_format_st palette;
429
430 struct v4l2_capability vcap; /* Video capabilities */
431 unsigned int ctl_input; /* selected input */
432 v4l2_std_id tvnorm_id; /* selected tv norm */
433 unsigned char video_endp; /* 0x82 for USBVISION devices based */
434
435 /* Decompression stuff: */
436 unsigned char *intra_frame_buffer; /* Buffer for reference frame */
437 int block_pos; /* for test only */
438 int request_intra; /* 0 = normal; 1 = intra frame is requested; */
439 int last_isoc_frame_num; /* check for lost isoc frames */
440 int isoc_packet_size; /* need to calculate used_bandwidth */
441 int used_bandwidth; /* used bandwidth 0-100%, need to set compr_level */
442 int compr_level; /* How strong (100) or weak (0) is compression */
443 int last_compr_level; /* How strong (100) or weak (0) was compression */
444 int usb_bandwidth; /* Mbit/s */
445
446 /* Statistics that can be overlayed on the screen */
447 unsigned long isoc_urb_count; /* How many URBs we received so far */
448 unsigned long urb_length; /* Length of last URB */
449 unsigned long isoc_data_count; /* How many bytes we received */
450 unsigned long header_count; /* How many frame headers we found */
451 unsigned long scratch_ovf_count; /* How many times we overflowed scratch */
452 unsigned long isoc_skip_count; /* How many empty ISO packets received */
453 unsigned long isoc_err_count; /* How many bad ISO packets received */
454 unsigned long isoc_packet_count; /* How many packets we totally got */
455 unsigned long time_in_irq; /* How long do we need for interrupt */
456 int isoc_measure_bandwidth_count;
457 int frame_num; /* How many video frames we send to user */
458 int max_strip_len; /* How big is the biggest strip */
459 int comprblock_pos;
460 int strip_len_errors; /* How many times was block_pos greater than strip_len */
461 int strip_magic_errors;
462 int strip_line_number_errors;
463 int compr_block_types[4];
464};
465
466static inline struct usb_usbvision *to_usbvision(struct v4l2_device *v4l2_dev)
467{
468 return container_of(v4l2_dev, struct usb_usbvision, v4l2_dev);
469}
470
471#define call_all(usbvision, o, f, args...) \
472 v4l2_device_call_all(&usbvision->v4l2_dev, 0, o, f, ##args)
473
474/* --------------------------------------------------------------- */
475/* defined in usbvision-i2c.c */
476/* i2c-algo-usb declaration */
477/* --------------------------------------------------------------- */
478
479/* ----------------------------------------------------------------------- */
480/* usbvision specific I2C functions */
481/* ----------------------------------------------------------------------- */
482int usbvision_i2c_register(struct usb_usbvision *usbvision);
483int usbvision_i2c_unregister(struct usb_usbvision *usbvision);
484
485/* defined in usbvision-core.c */
486int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg);
487int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
488 unsigned char value);
489
490int usbvision_frames_alloc(struct usb_usbvision *usbvision, int number_of_frames);
491void usbvision_frames_free(struct usb_usbvision *usbvision);
492int usbvision_scratch_alloc(struct usb_usbvision *usbvision);
493void usbvision_scratch_free(struct usb_usbvision *usbvision);
494int usbvision_decompress_alloc(struct usb_usbvision *usbvision);
495void usbvision_decompress_free(struct usb_usbvision *usbvision);
496
497int usbvision_setup(struct usb_usbvision *usbvision, int format);
498int usbvision_init_isoc(struct usb_usbvision *usbvision);
499int usbvision_restart_isoc(struct usb_usbvision *usbvision);
500void usbvision_stop_isoc(struct usb_usbvision *usbvision);
501int usbvision_set_alternate(struct usb_usbvision *dev);
502
503int usbvision_set_audio(struct usb_usbvision *usbvision, int audio_channel);
504int usbvision_audio_off(struct usb_usbvision *usbvision);
505
506int usbvision_begin_streaming(struct usb_usbvision *usbvision);
507void usbvision_empty_framequeues(struct usb_usbvision *dev);
508int usbvision_stream_interrupt(struct usb_usbvision *dev);
509
510int usbvision_muxsel(struct usb_usbvision *usbvision, int channel);
511int usbvision_set_input(struct usb_usbvision *usbvision);
512int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height);
513
514int usbvision_power_off(struct usb_usbvision *usbvision);
515int usbvision_power_on(struct usb_usbvision *usbvision);
516
517#endif /* __LINUX_USBVISION_H */