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dm thin metadata: fix __udivdi3 undefined on 32-bit
[linux/fpc-iii.git] / drivers / media / i2c / ks0127.c
blob77551baab068bd2358a5abfbbe9aa8b5dfeecca0
1 /*
2 * Video Capture Driver (Video for Linux 1/2)
3 * for the Matrox Marvel G200,G400 and Rainbow Runner-G series
4 *
5 * This module is an interface to the KS0127 video decoder chip.
6 *
7 * Copyright (C) 1999 Ryan Drake <stiletto@mediaone.net>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 *
23 *****************************************************************************
24 *
25 * Modified and extended by
26 * Mike Bernson <mike@mlb.org>
27 * Gerard v.d. Horst
28 * Leon van Stuivenberg <l.vanstuivenberg@chello.nl>
29 * Gernot Ziegler <gz@lysator.liu.se>
30 *
31 * Version History:
32 * V1.0 Ryan Drake Initial version by Ryan Drake
33 * V1.1 Gerard v.d. Horst Added some debugoutput, reset the video-standard
34 */
35
36 #include <linux/init.h>
37 #include <linux/module.h>
38 #include <linux/delay.h>
39 #include <linux/errno.h>
40 #include <linux/kernel.h>
41 #include <linux/i2c.h>
42 #include <linux/videodev2.h>
43 #include <linux/slab.h>
44 #include <media/v4l2-device.h>
45 #include "ks0127.h"
46
47 MODULE_DESCRIPTION("KS0127 video decoder driver");
48 MODULE_AUTHOR("Ryan Drake");
49 MODULE_LICENSE("GPL");
50
51 /* Addresses */
52 #define I2C_KS0127_ADDON 0xD8
53 #define I2C_KS0127_ONBOARD 0xDA
54
55
56 /* ks0127 control registers */
57 #define KS_STAT 0x00
58 #define KS_CMDA 0x01
59 #define KS_CMDB 0x02
60 #define KS_CMDC 0x03
61 #define KS_CMDD 0x04
62 #define KS_HAVB 0x05
63 #define KS_HAVE 0x06
64 #define KS_HS1B 0x07
65 #define KS_HS1E 0x08
66 #define KS_HS2B 0x09
67 #define KS_HS2E 0x0a
68 #define KS_AGC 0x0b
69 #define KS_HXTRA 0x0c
70 #define KS_CDEM 0x0d
71 #define KS_PORTAB 0x0e
72 #define KS_LUMA 0x0f
73 #define KS_CON 0x10
74 #define KS_BRT 0x11
75 #define KS_CHROMA 0x12
76 #define KS_CHROMB 0x13
77 #define KS_DEMOD 0x14
78 #define KS_SAT 0x15
79 #define KS_HUE 0x16
80 #define KS_VERTIA 0x17
81 #define KS_VERTIB 0x18
82 #define KS_VERTIC 0x19
83 #define KS_HSCLL 0x1a
84 #define KS_HSCLH 0x1b
85 #define KS_VSCLL 0x1c
86 #define KS_VSCLH 0x1d
87 #define KS_OFMTA 0x1e
88 #define KS_OFMTB 0x1f
89 #define KS_VBICTL 0x20
90 #define KS_CCDAT2 0x21
91 #define KS_CCDAT1 0x22
92 #define KS_VBIL30 0x23
93 #define KS_VBIL74 0x24
94 #define KS_VBIL118 0x25
95 #define KS_VBIL1512 0x26
96 #define KS_TTFRAM 0x27
97 #define KS_TESTA 0x28
98 #define KS_UVOFFH 0x29
99 #define KS_UVOFFL 0x2a
100 #define KS_UGAIN 0x2b
101 #define KS_VGAIN 0x2c
102 #define KS_VAVB 0x2d
103 #define KS_VAVE 0x2e
104 #define KS_CTRACK 0x2f
105 #define KS_POLCTL 0x30
106 #define KS_REFCOD 0x31
107 #define KS_INVALY 0x32
108 #define KS_INVALU 0x33
109 #define KS_INVALV 0x34
110 #define KS_UNUSEY 0x35
111 #define KS_UNUSEU 0x36
112 #define KS_UNUSEV 0x37
113 #define KS_USRSAV 0x38
114 #define KS_USREAV 0x39
115 #define KS_SHS1A 0x3a
116 #define KS_SHS1B 0x3b
117 #define KS_SHS1C 0x3c
118 #define KS_CMDE 0x3d
119 #define KS_VSDEL 0x3e
120 #define KS_CMDF 0x3f
121 #define KS_GAMMA0 0x40
122 #define KS_GAMMA1 0x41
123 #define KS_GAMMA2 0x42
124 #define KS_GAMMA3 0x43
125 #define KS_GAMMA4 0x44
126 #define KS_GAMMA5 0x45
127 #define KS_GAMMA6 0x46
128 #define KS_GAMMA7 0x47
129 #define KS_GAMMA8 0x48
130 #define KS_GAMMA9 0x49
131 #define KS_GAMMA10 0x4a
132 #define KS_GAMMA11 0x4b
133 #define KS_GAMMA12 0x4c
134 #define KS_GAMMA13 0x4d
135 #define KS_GAMMA14 0x4e
136 #define KS_GAMMA15 0x4f
137 #define KS_GAMMA16 0x50
138 #define KS_GAMMA17 0x51
139 #define KS_GAMMA18 0x52
140 #define KS_GAMMA19 0x53
141 #define KS_GAMMA20 0x54
142 #define KS_GAMMA21 0x55
143 #define KS_GAMMA22 0x56
144 #define KS_GAMMA23 0x57
145 #define KS_GAMMA24 0x58
146 #define KS_GAMMA25 0x59
147 #define KS_GAMMA26 0x5a
148 #define KS_GAMMA27 0x5b
149 #define KS_GAMMA28 0x5c
150 #define KS_GAMMA29 0x5d
151 #define KS_GAMMA30 0x5e
152 #define KS_GAMMA31 0x5f
153 #define KS_GAMMAD0 0x60
154 #define KS_GAMMAD1 0x61
155 #define KS_GAMMAD2 0x62
156 #define KS_GAMMAD3 0x63
157 #define KS_GAMMAD4 0x64
158 #define KS_GAMMAD5 0x65
159 #define KS_GAMMAD6 0x66
160 #define KS_GAMMAD7 0x67
161 #define KS_GAMMAD8 0x68
162 #define KS_GAMMAD9 0x69
163 #define KS_GAMMAD10 0x6a
164 #define KS_GAMMAD11 0x6b
165 #define KS_GAMMAD12 0x6c
166 #define KS_GAMMAD13 0x6d
167 #define KS_GAMMAD14 0x6e
168 #define KS_GAMMAD15 0x6f
169 #define KS_GAMMAD16 0x70
170 #define KS_GAMMAD17 0x71
171 #define KS_GAMMAD18 0x72
172 #define KS_GAMMAD19 0x73
173 #define KS_GAMMAD20 0x74
174 #define KS_GAMMAD21 0x75
175 #define KS_GAMMAD22 0x76
176 #define KS_GAMMAD23 0x77
177 #define KS_GAMMAD24 0x78
178 #define KS_GAMMAD25 0x79
179 #define KS_GAMMAD26 0x7a
180 #define KS_GAMMAD27 0x7b
181 #define KS_GAMMAD28 0x7c
182 #define KS_GAMMAD29 0x7d
183 #define KS_GAMMAD30 0x7e
184 #define KS_GAMMAD31 0x7f
185
186
187 /****************************************************************************
188 * mga_dev : represents one ks0127 chip.
189 ****************************************************************************/
190
191 struct adjust {
192 int contrast;
193 int bright;
194 int hue;
195 int ugain;
196 int vgain;
197 };
198
199 struct ks0127 {
200 struct v4l2_subdev sd;
201 v4l2_std_id norm;
202 u8 regs[256];
203 };
204
205 static inline struct ks0127 *to_ks0127(struct v4l2_subdev *sd)
206 {
207 return container_of(sd, struct ks0127, sd);
208 }
209
210
211 static int debug; /* insmod parameter */
212
213 module_param(debug, int, 0);
214 MODULE_PARM_DESC(debug, "Debug output");
215
216 static u8 reg_defaults[64];
217
218 static void init_reg_defaults(void)
219 {
220 static int initialized;
221 u8 *table = reg_defaults;
222
223 if (initialized)
224 return;
225 initialized = 1;
226
227 table[KS_CMDA] = 0x2c; /* VSE=0, CCIR 601, autodetect standard */
228 table[KS_CMDB] = 0x12; /* VALIGN=0, AGC control and input */
229 table[KS_CMDC] = 0x00; /* Test options */
230 /* clock & input select, write 1 to PORTA */
231 table[KS_CMDD] = 0x01;
232 table[KS_HAVB] = 0x00; /* HAV Start Control */
233 table[KS_HAVE] = 0x00; /* HAV End Control */
234 table[KS_HS1B] = 0x10; /* HS1 Start Control */
235 table[KS_HS1E] = 0x00; /* HS1 End Control */
236 table[KS_HS2B] = 0x00; /* HS2 Start Control */
237 table[KS_HS2E] = 0x00; /* HS2 End Control */
238 table[KS_AGC] = 0x53; /* Manual setting for AGC */
239 table[KS_HXTRA] = 0x00; /* Extra Bits for HAV and HS1/2 */
240 table[KS_CDEM] = 0x00; /* Chroma Demodulation Control */
241 table[KS_PORTAB] = 0x0f; /* port B is input, port A output GPPORT */
242 table[KS_LUMA] = 0x01; /* Luma control */
243 table[KS_CON] = 0x00; /* Contrast Control */
244 table[KS_BRT] = 0x00; /* Brightness Control */
245 table[KS_CHROMA] = 0x2a; /* Chroma control A */
246 table[KS_CHROMB] = 0x90; /* Chroma control B */
247 table[KS_DEMOD] = 0x00; /* Chroma Demodulation Control & Status */
248 table[KS_SAT] = 0x00; /* Color Saturation Control*/
249 table[KS_HUE] = 0x00; /* Hue Control */
250 table[KS_VERTIA] = 0x00; /* Vertical Processing Control A */
251 /* Vertical Processing Control B, luma 1 line delayed */
252 table[KS_VERTIB] = 0x12;
253 table[KS_VERTIC] = 0x0b; /* Vertical Processing Control C */
254 table[KS_HSCLL] = 0x00; /* Horizontal Scaling Ratio Low */
255 table[KS_HSCLH] = 0x00; /* Horizontal Scaling Ratio High */
256 table[KS_VSCLL] = 0x00; /* Vertical Scaling Ratio Low */
257 table[KS_VSCLH] = 0x00; /* Vertical Scaling Ratio High */
258 /* 16 bit YCbCr 4:2:2 output; I can't make the bt866 like 8 bit /Sam */
259 table[KS_OFMTA] = 0x30;
260 table[KS_OFMTB] = 0x00; /* Output Control B */
261 /* VBI Decoder Control; 4bit fmt: avoid Y overflow */
262 table[KS_VBICTL] = 0x5d;
263 table[KS_CCDAT2] = 0x00; /* Read Only register */
264 table[KS_CCDAT1] = 0x00; /* Read Only register */
265 table[KS_VBIL30] = 0xa8; /* VBI data decoding options */
266 table[KS_VBIL74] = 0xaa; /* VBI data decoding options */
267 table[KS_VBIL118] = 0x2a; /* VBI data decoding options */
268 table[KS_VBIL1512] = 0x00; /* VBI data decoding options */
269 table[KS_TTFRAM] = 0x00; /* Teletext frame alignment pattern */
270 table[KS_TESTA] = 0x00; /* test register, shouldn't be written */
271 table[KS_UVOFFH] = 0x00; /* UV Offset Adjustment High */
272 table[KS_UVOFFL] = 0x00; /* UV Offset Adjustment Low */
273 table[KS_UGAIN] = 0x00; /* U Component Gain Adjustment */
274 table[KS_VGAIN] = 0x00; /* V Component Gain Adjustment */
275 table[KS_VAVB] = 0x07; /* VAV Begin */
276 table[KS_VAVE] = 0x00; /* VAV End */
277 table[KS_CTRACK] = 0x00; /* Chroma Tracking Control */
278 table[KS_POLCTL] = 0x41; /* Timing Signal Polarity Control */
279 table[KS_REFCOD] = 0x80; /* Reference Code Insertion Control */
280 table[KS_INVALY] = 0x10; /* Invalid Y Code */
281 table[KS_INVALU] = 0x80; /* Invalid U Code */
282 table[KS_INVALV] = 0x80; /* Invalid V Code */
283 table[KS_UNUSEY] = 0x10; /* Unused Y Code */
284 table[KS_UNUSEU] = 0x80; /* Unused U Code */
285 table[KS_UNUSEV] = 0x80; /* Unused V Code */
286 table[KS_USRSAV] = 0x00; /* reserved */
287 table[KS_USREAV] = 0x00; /* reserved */
288 table[KS_SHS1A] = 0x00; /* User Defined SHS1 A */
289 /* User Defined SHS1 B, ALT656=1 on 0127B */
290 table[KS_SHS1B] = 0x80;
291 table[KS_SHS1C] = 0x00; /* User Defined SHS1 C */
292 table[KS_CMDE] = 0x00; /* Command Register E */
293 table[KS_VSDEL] = 0x00; /* VS Delay Control */
294 /* Command Register F, update -immediately- */
295 /* (there might come no vsync)*/
296 table[KS_CMDF] = 0x02;
297 }
298
299
300 /* We need to manually read because of a bug in the KS0127 chip.
301 *
302 * An explanation from kayork@mail.utexas.edu:
303 *
304 * During I2C reads, the KS0127 only samples for a stop condition
305 * during the place where the acknowledge bit should be. Any standard
306 * I2C implementation (correctly) throws in another clock transition
307 * at the 9th bit, and the KS0127 will not recognize the stop condition
308 * and will continue to clock out data.
309 *
310 * So we have to do the read ourself. Big deal.
311 * workaround in i2c-algo-bit
312 */
313
314
315 static u8 ks0127_read(struct v4l2_subdev *sd, u8 reg)
316 {
317 struct i2c_client *client = v4l2_get_subdevdata(sd);
318 char val = 0;
319 struct i2c_msg msgs[] = {
320 {
321 .addr = client->addr,
322 .len = sizeof(reg),
323 .buf = &reg
324 },
325 {
326 .addr = client->addr,
327 .flags = I2C_M_RD | I2C_M_NO_RD_ACK,
328 .len = sizeof(val),
329 .buf = &val
330 }
331 };
332 int ret;
333
334 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
335 if (ret != ARRAY_SIZE(msgs))
336 v4l2_dbg(1, debug, sd, "read error\n");
337
338 return val;
339 }
340
341
342 static void ks0127_write(struct v4l2_subdev *sd, u8 reg, u8 val)
343 {
344 struct i2c_client *client = v4l2_get_subdevdata(sd);
345 struct ks0127 *ks = to_ks0127(sd);
346 char msg[] = { reg, val };
347
348 if (i2c_master_send(client, msg, sizeof(msg)) != sizeof(msg))
349 v4l2_dbg(1, debug, sd, "write error\n");
350
351 ks->regs[reg] = val;
352 }
353
354
355 /* generic bit-twiddling */
356 static void ks0127_and_or(struct v4l2_subdev *sd, u8 reg, u8 and_v, u8 or_v)
357 {
358 struct ks0127 *ks = to_ks0127(sd);
359
360 u8 val = ks->regs[reg];
361 val = (val & and_v) | or_v;
362 ks0127_write(sd, reg, val);
363 }
364
365
366
367 /****************************************************************************
368 * ks0127 private api
369 ****************************************************************************/
370 static void ks0127_init(struct v4l2_subdev *sd)
371 {
372 u8 *table = reg_defaults;
373 int i;
374
375 v4l2_dbg(1, debug, sd, "reset\n");
376 msleep(1);
377
378 /* initialize all registers to known values */
379 /* (except STAT, 0x21, 0x22, TEST and 0x38,0x39) */
380
381 for (i = 1; i < 33; i++)
382 ks0127_write(sd, i, table[i]);
383
384 for (i = 35; i < 40; i++)
385 ks0127_write(sd, i, table[i]);
386
387 for (i = 41; i < 56; i++)
388 ks0127_write(sd, i, table[i]);
389
390 for (i = 58; i < 64; i++)
391 ks0127_write(sd, i, table[i]);
392
393
394 if ((ks0127_read(sd, KS_STAT) & 0x80) == 0) {
395 v4l2_dbg(1, debug, sd, "ks0122s found\n");
396 return;
397 }
398
399 switch (ks0127_read(sd, KS_CMDE) & 0x0f) {
400 case 0:
401 v4l2_dbg(1, debug, sd, "ks0127 found\n");
402 break;
403
404 case 9:
405 v4l2_dbg(1, debug, sd, "ks0127B Revision A found\n");
406 break;
407
408 default:
409 v4l2_dbg(1, debug, sd, "unknown revision\n");
410 break;
411 }
412 }
413
414 static int ks0127_s_routing(struct v4l2_subdev *sd,
415 u32 input, u32 output, u32 config)
416 {
417 struct ks0127 *ks = to_ks0127(sd);
418
419 switch (input) {
420 case KS_INPUT_COMPOSITE_1:
421 case KS_INPUT_COMPOSITE_2:
422 case KS_INPUT_COMPOSITE_3:
423 case KS_INPUT_COMPOSITE_4:
424 case KS_INPUT_COMPOSITE_5:
425 case KS_INPUT_COMPOSITE_6:
426 v4l2_dbg(1, debug, sd,
427 "s_routing %d: Composite\n", input);
428 /* autodetect 50/60 Hz */
429 ks0127_and_or(sd, KS_CMDA, 0xfc, 0x00);
430 /* VSE=0 */
431 ks0127_and_or(sd, KS_CMDA, ~0x40, 0x00);
432 /* set input line */
433 ks0127_and_or(sd, KS_CMDB, 0xb0, input);
434 /* non-freerunning mode */
435 ks0127_and_or(sd, KS_CMDC, 0x70, 0x0a);
436 /* analog input */
437 ks0127_and_or(sd, KS_CMDD, 0x03, 0x00);
438 /* enable chroma demodulation */
439 ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x00);
440 /* chroma trap, HYBWR=1 */
441 ks0127_and_or(sd, KS_LUMA, 0x00,
442 (reg_defaults[KS_LUMA])|0x0c);
443 /* scaler fullbw, luma comb off */
444 ks0127_and_or(sd, KS_VERTIA, 0x08, 0x81);
445 /* manual chroma comb .25 .5 .25 */
446 ks0127_and_or(sd, KS_VERTIC, 0x0f, 0x90);
447
448 /* chroma path delay */
449 ks0127_and_or(sd, KS_CHROMB, 0x0f, 0x90);
450
451 ks0127_write(sd, KS_UGAIN, reg_defaults[KS_UGAIN]);
452 ks0127_write(sd, KS_VGAIN, reg_defaults[KS_VGAIN]);
453 ks0127_write(sd, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
454 ks0127_write(sd, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
455 break;
456
457 case KS_INPUT_SVIDEO_1:
458 case KS_INPUT_SVIDEO_2:
459 case KS_INPUT_SVIDEO_3:
460 v4l2_dbg(1, debug, sd,
461 "s_routing %d: S-Video\n", input);
462 /* autodetect 50/60 Hz */
463 ks0127_and_or(sd, KS_CMDA, 0xfc, 0x00);
464 /* VSE=0 */
465 ks0127_and_or(sd, KS_CMDA, ~0x40, 0x00);
466 /* set input line */
467 ks0127_and_or(sd, KS_CMDB, 0xb0, input);
468 /* non-freerunning mode */
469 ks0127_and_or(sd, KS_CMDC, 0x70, 0x0a);
470 /* analog input */
471 ks0127_and_or(sd, KS_CMDD, 0x03, 0x00);
472 /* enable chroma demodulation */
473 ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x00);
474 ks0127_and_or(sd, KS_LUMA, 0x00,
475 reg_defaults[KS_LUMA]);
476 /* disable luma comb */
477 ks0127_and_or(sd, KS_VERTIA, 0x08,
478 (reg_defaults[KS_VERTIA]&0xf0)|0x01);
479 ks0127_and_or(sd, KS_VERTIC, 0x0f,
480 reg_defaults[KS_VERTIC]&0xf0);
481
482 ks0127_and_or(sd, KS_CHROMB, 0x0f,
483 reg_defaults[KS_CHROMB]&0xf0);
484
485 ks0127_write(sd, KS_UGAIN, reg_defaults[KS_UGAIN]);
486 ks0127_write(sd, KS_VGAIN, reg_defaults[KS_VGAIN]);
487 ks0127_write(sd, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
488 ks0127_write(sd, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
489 break;
490
491 case KS_INPUT_YUV656:
492 v4l2_dbg(1, debug, sd, "s_routing 15: YUV656\n");
493 if (ks->norm & V4L2_STD_525_60)
494 /* force 60 Hz */
495 ks0127_and_or(sd, KS_CMDA, 0xfc, 0x03);
496 else
497 /* force 50 Hz */
498 ks0127_and_or(sd, KS_CMDA, 0xfc, 0x02);
499
500 ks0127_and_or(sd, KS_CMDA, 0xff, 0x40); /* VSE=1 */
501 /* set input line and VALIGN */
502 ks0127_and_or(sd, KS_CMDB, 0xb0, (input | 0x40));
503 /* freerunning mode, */
504 /* TSTGEN = 1 TSTGFR=11 TSTGPH=0 TSTGPK=0 VMEM=1*/
505 ks0127_and_or(sd, KS_CMDC, 0x70, 0x87);
506 /* digital input, SYNDIR = 0 INPSL=01 CLKDIR=0 EAV=0 */
507 ks0127_and_or(sd, KS_CMDD, 0x03, 0x08);
508 /* disable chroma demodulation */
509 ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x30);
510 /* HYPK =01 CTRAP = 0 HYBWR=0 PED=1 RGBH=1 UNIT=1 */
511 ks0127_and_or(sd, KS_LUMA, 0x00, 0x71);
512 ks0127_and_or(sd, KS_VERTIC, 0x0f,
513 reg_defaults[KS_VERTIC]&0xf0);
514
515 /* scaler fullbw, luma comb off */
516 ks0127_and_or(sd, KS_VERTIA, 0x08, 0x81);
517
518 ks0127_and_or(sd, KS_CHROMB, 0x0f,
519 reg_defaults[KS_CHROMB]&0xf0);
520
521 ks0127_and_or(sd, KS_CON, 0x00, 0x00);
522 ks0127_and_or(sd, KS_BRT, 0x00, 32); /* spec: 34 */
523 /* spec: 229 (e5) */
524 ks0127_and_or(sd, KS_SAT, 0x00, 0xe8);
525 ks0127_and_or(sd, KS_HUE, 0x00, 0);
526
527 ks0127_and_or(sd, KS_UGAIN, 0x00, 238);
528 ks0127_and_or(sd, KS_VGAIN, 0x00, 0x00);
529
530 /*UOFF:0x30, VOFF:0x30, TSTCGN=1 */
531 ks0127_and_or(sd, KS_UVOFFH, 0x00, 0x4f);
532 ks0127_and_or(sd, KS_UVOFFL, 0x00, 0x00);
533 break;
534
535 default:
536 v4l2_dbg(1, debug, sd,
537 "s_routing: Unknown input %d\n", input);
538 break;
539 }
540
541 /* hack: CDMLPF sometimes spontaneously switches on; */
542 /* force back off */
543 ks0127_write(sd, KS_DEMOD, reg_defaults[KS_DEMOD]);
544 return 0;
545 }
546
547 static int ks0127_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
548 {
549 struct ks0127 *ks = to_ks0127(sd);
550
551 /* Set to automatic SECAM/Fsc mode */
552 ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x00);
553
554 ks->norm = std;
555 if (std & V4L2_STD_NTSC) {
556 v4l2_dbg(1, debug, sd,
557 "s_std: NTSC_M\n");
558 ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x20);
559 } else if (std & V4L2_STD_PAL_N) {
560 v4l2_dbg(1, debug, sd,
561 "s_std: NTSC_N (fixme)\n");
562 ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x40);
563 } else if (std & V4L2_STD_PAL) {
564 v4l2_dbg(1, debug, sd,
565 "s_std: PAL_N\n");
566 ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x20);
567 } else if (std & V4L2_STD_PAL_M) {
568 v4l2_dbg(1, debug, sd,
569 "s_std: PAL_M (fixme)\n");
570 ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x40);
571 } else if (std & V4L2_STD_SECAM) {
572 v4l2_dbg(1, debug, sd,
573 "s_std: SECAM\n");
574
575 /* set to secam autodetection */
576 ks0127_and_or(sd, KS_CHROMA, 0xdf, 0x20);
577 ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x00);
578 schedule_timeout_interruptible(HZ/10+1);
579
580 /* did it autodetect? */
581 if (!(ks0127_read(sd, KS_DEMOD) & 0x40))
582 /* force to secam mode */
583 ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x0f);
584 } else {
585 v4l2_dbg(1, debug, sd, "s_std: Unknown norm %llx\n",
586 (unsigned long long)std);
587 }
588 return 0;
589 }
590
591 static int ks0127_s_stream(struct v4l2_subdev *sd, int enable)
592 {
593 v4l2_dbg(1, debug, sd, "s_stream(%d)\n", enable);
594 if (enable) {
595 /* All output pins on */
596 ks0127_and_or(sd, KS_OFMTA, 0xcf, 0x30);
597 /* Obey the OEN pin */
598 ks0127_and_or(sd, KS_CDEM, 0x7f, 0x00);
599 } else {
600 /* Video output pins off */
601 ks0127_and_or(sd, KS_OFMTA, 0xcf, 0x00);
602 /* Ignore the OEN pin */
603 ks0127_and_or(sd, KS_CDEM, 0x7f, 0x80);
604 }
605 return 0;
606 }
607
608 static int ks0127_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd)
609 {
610 int stat = V4L2_IN_ST_NO_SIGNAL;
611 u8 status;
612 v4l2_std_id std = pstd ? *pstd : V4L2_STD_ALL;
613
614 status = ks0127_read(sd, KS_STAT);
615 if (!(status & 0x20)) /* NOVID not set */
616 stat = 0;
617 if (!(status & 0x01)) { /* CLOCK set */
618 stat |= V4L2_IN_ST_NO_COLOR;
619 std = V4L2_STD_UNKNOWN;
620 } else {
621 if ((status & 0x08)) /* PALDET set */
622 std &= V4L2_STD_PAL;
623 else
624 std &= V4L2_STD_NTSC;
625 }
626 if ((status & 0x10)) /* PALDET set */
627 std &= V4L2_STD_525_60;
628 else
629 std &= V4L2_STD_625_50;
630 if (pstd)
631 *pstd = std;
632 if (pstatus)
633 *pstatus = stat;
634 return 0;
635 }
636
637 static int ks0127_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
638 {
639 v4l2_dbg(1, debug, sd, "querystd\n");
640 return ks0127_status(sd, NULL, std);
641 }
642
643 static int ks0127_g_input_status(struct v4l2_subdev *sd, u32 *status)
644 {
645 v4l2_dbg(1, debug, sd, "g_input_status\n");
646 return ks0127_status(sd, status, NULL);
647 }
648
649 /* ----------------------------------------------------------------------- */
650
651 static const struct v4l2_subdev_video_ops ks0127_video_ops = {
652 .s_std = ks0127_s_std,
653 .s_routing = ks0127_s_routing,
654 .s_stream = ks0127_s_stream,
655 .querystd = ks0127_querystd,
656 .g_input_status = ks0127_g_input_status,
657 };
658
659 static const struct v4l2_subdev_ops ks0127_ops = {
660 .video = &ks0127_video_ops,
661 };
662
663 /* ----------------------------------------------------------------------- */
664
665
666 static int ks0127_probe(struct i2c_client *client, const struct i2c_device_id *id)
667 {
668 struct ks0127 *ks;
669 struct v4l2_subdev *sd;
670
671 v4l_info(client, "%s chip found @ 0x%x (%s)\n",
672 client->addr == (I2C_KS0127_ADDON >> 1) ? "addon" : "on-board",
673 client->addr << 1, client->adapter->name);
674
675 ks = devm_kzalloc(&client->dev, sizeof(*ks), GFP_KERNEL);
676 if (ks == NULL)
677 return -ENOMEM;
678 sd = &ks->sd;
679 v4l2_i2c_subdev_init(sd, client, &ks0127_ops);
680
681 /* power up */
682 init_reg_defaults();
683 ks0127_write(sd, KS_CMDA, 0x2c);
684 mdelay(10);
685
686 /* reset the device */
687 ks0127_init(sd);
688 return 0;
689 }
690
691 static int ks0127_remove(struct i2c_client *client)
692 {
693 struct v4l2_subdev *sd = i2c_get_clientdata(client);
694
695 v4l2_device_unregister_subdev(sd);
696 ks0127_write(sd, KS_OFMTA, 0x20); /* tristate */
697 ks0127_write(sd, KS_CMDA, 0x2c | 0x80); /* power down */
698 return 0;
699 }
700
701 static const struct i2c_device_id ks0127_id[] = {
702 { "ks0127", 0 },
703 { "ks0127b", 0 },
704 { "ks0122s", 0 },
705 { }
706 };
707 MODULE_DEVICE_TABLE(i2c, ks0127_id);
708
709 static struct i2c_driver ks0127_driver = {
710 .driver = {
711 .name = "ks0127",
712 },
713 .probe = ks0127_probe,
714 .remove = ks0127_remove,
715 .id_table = ks0127_id,
716 };
717
718 module_i2c_driver(ks0127_driver);
Linux with added FPC-III support