V4L/DVB (9222): S2API: Add Multiple-frontend on a single adapter support.
[linux-2.6.git] / drivers / media / video / ks0127.c
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/video_decoder.h>
43 #include <media/v4l2-common.h>
44 #include <media/v4l2-i2c-drv-legacy.h>
45 #include "ks0127.h"
46
47 MODULE_DESCRIPTION("KS0127 video decoder driver");
48 MODULE_AUTHOR("Ryan Drake");
49 MODULE_LICENSE("GPL");
50
51 #define KS_TYPE_UNKNOWN 0
52 #define KS_TYPE_0122S   1
53 #define KS_TYPE_0127    2
54 #define KS_TYPE_0127B   3
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         int             format_width;
201         int             format_height;
202         int             cap_width;
203         int             cap_height;
204         int             norm;
205         int             ks_type;
206         u8              regs[256];
207 };
208
209
210 static int debug; /* insmod parameter */
211
212 module_param(debug, int, 0);
213 MODULE_PARM_DESC(debug, "Debug output");
214
215 static u8 reg_defaults[64];
216
217 static void init_reg_defaults(void)
218 {
219         static int initialized;
220         u8 *table = reg_defaults;
221
222         if (initialized)
223                 return;
224         initialized = 1;
225
226         table[KS_CMDA]     = 0x2c;  /* VSE=0, CCIR 601, autodetect standard */
227         table[KS_CMDB]     = 0x12;  /* VALIGN=0, AGC control and input */
228         table[KS_CMDC]     = 0x00;  /* Test options */
229         /* clock & input select, write 1 to PORTA */
230         table[KS_CMDD]     = 0x01;
231         table[KS_HAVB]     = 0x00;  /* HAV Start Control */
232         table[KS_HAVE]     = 0x00;  /* HAV End Control */
233         table[KS_HS1B]     = 0x10;  /* HS1 Start Control */
234         table[KS_HS1E]     = 0x00;  /* HS1 End Control */
235         table[KS_HS2B]     = 0x00;  /* HS2 Start Control */
236         table[KS_HS2E]     = 0x00;  /* HS2 End Control */
237         table[KS_AGC]      = 0x53;  /* Manual setting for AGC */
238         table[KS_HXTRA]    = 0x00;  /* Extra Bits for HAV and HS1/2 */
239         table[KS_CDEM]     = 0x00;  /* Chroma Demodulation Control */
240         table[KS_PORTAB]   = 0x0f;  /* port B is input, port A output GPPORT */
241         table[KS_LUMA]     = 0x01;  /* Luma control */
242         table[KS_CON]      = 0x00;  /* Contrast Control */
243         table[KS_BRT]      = 0x00;  /* Brightness Control */
244         table[KS_CHROMA]   = 0x2a;  /* Chroma control A */
245         table[KS_CHROMB]   = 0x90;  /* Chroma control B */
246         table[KS_DEMOD]    = 0x00;  /* Chroma Demodulation Control & Status */
247         table[KS_SAT]      = 0x00;  /* Color Saturation Control*/
248         table[KS_HUE]      = 0x00;  /* Hue Control */
249         table[KS_VERTIA]   = 0x00;  /* Vertical Processing Control A */
250         /* Vertical Processing Control B, luma 1 line delayed */
251         table[KS_VERTIB]   = 0x12;
252         table[KS_VERTIC]   = 0x0b;  /* Vertical Processing Control C */
253         table[KS_HSCLL]    = 0x00;  /* Horizontal Scaling Ratio Low */
254         table[KS_HSCLH]    = 0x00;  /* Horizontal Scaling Ratio High */
255         table[KS_VSCLL]    = 0x00;  /* Vertical Scaling Ratio Low */
256         table[KS_VSCLH]    = 0x00;  /* Vertical Scaling Ratio High */
257         /* 16 bit YCbCr 4:2:2 output; I can't make the bt866 like 8 bit /Sam */
258         table[KS_OFMTA]    = 0x30;
259         table[KS_OFMTB]    = 0x00;  /* Output Control B */
260         /* VBI Decoder Control; 4bit fmt: avoid Y overflow */
261         table[KS_VBICTL]   = 0x5d;
262         table[KS_CCDAT2]   = 0x00;  /* Read Only register */
263         table[KS_CCDAT1]   = 0x00;  /* Read Only register */
264         table[KS_VBIL30]   = 0xa8;  /* VBI data decoding options */
265         table[KS_VBIL74]   = 0xaa;  /* VBI data decoding options */
266         table[KS_VBIL118]  = 0x2a;  /* VBI data decoding options */
267         table[KS_VBIL1512] = 0x00;  /* VBI data decoding options */
268         table[KS_TTFRAM]   = 0x00;  /* Teletext frame alignment pattern */
269         table[KS_TESTA]    = 0x00;  /* test register, shouldn't be written */
270         table[KS_UVOFFH]   = 0x00;  /* UV Offset Adjustment High */
271         table[KS_UVOFFL]   = 0x00;  /* UV Offset Adjustment Low */
272         table[KS_UGAIN]    = 0x00;  /* U Component Gain Adjustment */
273         table[KS_VGAIN]    = 0x00;  /* V Component Gain Adjustment */
274         table[KS_VAVB]     = 0x07;  /* VAV Begin */
275         table[KS_VAVE]     = 0x00;  /* VAV End */
276         table[KS_CTRACK]   = 0x00;  /* Chroma Tracking Control */
277         table[KS_POLCTL]   = 0x41;  /* Timing Signal Polarity Control */
278         table[KS_REFCOD]   = 0x80;  /* Reference Code Insertion Control */
279         table[KS_INVALY]   = 0x10;  /* Invalid Y Code */
280         table[KS_INVALU]   = 0x80;  /* Invalid U Code */
281         table[KS_INVALV]   = 0x80;  /* Invalid V Code */
282         table[KS_UNUSEY]   = 0x10;  /* Unused Y Code */
283         table[KS_UNUSEU]   = 0x80;  /* Unused U Code */
284         table[KS_UNUSEV]   = 0x80;  /* Unused V Code */
285         table[KS_USRSAV]   = 0x00;  /* reserved */
286         table[KS_USREAV]   = 0x00;  /* reserved */
287         table[KS_SHS1A]    = 0x00;  /* User Defined SHS1 A */
288         /* User Defined SHS1 B, ALT656=1 on 0127B */
289         table[KS_SHS1B]    = 0x80;
290         table[KS_SHS1C]    = 0x00;  /* User Defined SHS1 C */
291         table[KS_CMDE]     = 0x00;  /* Command Register E */
292         table[KS_VSDEL]    = 0x00;  /* VS Delay Control */
293         /* Command Register F, update -immediately- */
294         /* (there might come no vsync)*/
295         table[KS_CMDF]     = 0x02;
296 }
297
298
299 /* We need to manually read because of a bug in the KS0127 chip.
300  *
301  * An explanation from kayork@mail.utexas.edu:
302  *
303  * During I2C reads, the KS0127 only samples for a stop condition
304  * during the place where the acknowledge bit should be. Any standard
305  * I2C implementation (correctly) throws in another clock transition
306  * at the 9th bit, and the KS0127 will not recognize the stop condition
307  * and will continue to clock out data.
308  *
309  * So we have to do the read ourself.  Big deal.
310  *         workaround in i2c-algo-bit
311  */
312
313
314 static u8 ks0127_read(struct i2c_client *c, u8 reg)
315 {
316         char val = 0;
317         struct i2c_msg msgs[] = {
318                 { c->addr, 0, sizeof(reg), &reg },
319                 { c->addr, I2C_M_RD | I2C_M_NO_RD_ACK, sizeof(val), &val }
320         };
321         int ret;
322
323         ret = i2c_transfer(c->adapter, msgs, ARRAY_SIZE(msgs));
324         if (ret != ARRAY_SIZE(msgs))
325                 v4l_dbg(1, debug, c, "read error\n");
326
327         return val;
328 }
329
330
331 static void ks0127_write(struct i2c_client *c, u8 reg, u8 val)
332 {
333         struct ks0127 *ks = i2c_get_clientdata(c);
334         char msg[] = { reg, val };
335
336         if (i2c_master_send(c, msg, sizeof(msg)) != sizeof(msg))
337                 v4l_dbg(1, debug, c, "write error\n");
338
339         ks->regs[reg] = val;
340 }
341
342
343 /* generic bit-twiddling */
344 static void ks0127_and_or(struct i2c_client *client, u8 reg, u8 and_v, u8 or_v)
345 {
346         struct ks0127 *ks = i2c_get_clientdata(client);
347
348         u8 val = ks->regs[reg];
349         val = (val & and_v) | or_v;
350         ks0127_write(client, reg, val);
351 }
352
353
354
355 /****************************************************************************
356 * ks0127 private api
357 ****************************************************************************/
358 static void ks0127_reset(struct i2c_client *c)
359 {
360         struct ks0127 *ks = i2c_get_clientdata(c);
361         u8 *table = reg_defaults;
362         int i;
363
364         ks->ks_type = KS_TYPE_UNKNOWN;
365
366         v4l_dbg(1, debug, c, "reset\n");
367         msleep(1);
368
369         /* initialize all registers to known values */
370         /* (except STAT, 0x21, 0x22, TEST and 0x38,0x39) */
371
372         for (i = 1; i < 33; i++)
373                 ks0127_write(c, i, table[i]);
374
375         for (i = 35; i < 40; i++)
376                 ks0127_write(c, i, table[i]);
377
378         for (i = 41; i < 56; i++)
379                 ks0127_write(c, i, table[i]);
380
381         for (i = 58; i < 64; i++)
382                 ks0127_write(c, i, table[i]);
383
384
385         if ((ks0127_read(c, KS_STAT) & 0x80) == 0) {
386                 ks->ks_type = KS_TYPE_0122S;
387                 v4l_dbg(1, debug, c, "ks0122s found\n");
388                 return;
389         }
390
391         switch (ks0127_read(c, KS_CMDE) & 0x0f) {
392         case 0:
393                 ks->ks_type = KS_TYPE_0127;
394                 v4l_dbg(1, debug, c, "ks0127 found\n");
395                 break;
396
397         case 9:
398                 ks->ks_type = KS_TYPE_0127B;
399                 v4l_dbg(1, debug, c, "ks0127B Revision A found\n");
400                 break;
401
402         default:
403                 v4l_dbg(1, debug, c, "unknown revision\n");
404                 break;
405         }
406 }
407
408 static int ks0127_command(struct i2c_client *c, unsigned cmd, void *arg)
409 {
410         struct ks0127 *ks = i2c_get_clientdata(c);
411         int             *iarg = (int *)arg;
412         int             status;
413
414         if (!ks)
415                 return -ENODEV;
416
417         switch (cmd) {
418         case DECODER_INIT:
419                 v4l_dbg(1, debug, c, "DECODER_INIT\n");
420                 ks0127_reset(c);
421                 break;
422
423         case DECODER_SET_INPUT:
424                 switch(*iarg) {
425                 case KS_INPUT_COMPOSITE_1:
426                 case KS_INPUT_COMPOSITE_2:
427                 case KS_INPUT_COMPOSITE_3:
428                 case KS_INPUT_COMPOSITE_4:
429                 case KS_INPUT_COMPOSITE_5:
430                 case KS_INPUT_COMPOSITE_6:
431                         v4l_dbg(1, debug, c,
432                                 "DECODER_SET_INPUT %d: Composite\n", *iarg);
433                         /* autodetect 50/60 Hz */
434                         ks0127_and_or(c, KS_CMDA,   0xfc, 0x00);
435                         /* VSE=0 */
436                         ks0127_and_or(c, KS_CMDA,   ~0x40, 0x00);
437                         /* set input line */
438                         ks0127_and_or(c, KS_CMDB,   0xb0, *iarg);
439                         /* non-freerunning mode */
440                         ks0127_and_or(c, KS_CMDC,   0x70, 0x0a);
441                         /* analog input */
442                         ks0127_and_or(c, KS_CMDD,   0x03, 0x00);
443                         /* enable chroma demodulation */
444                         ks0127_and_or(c, KS_CTRACK, 0xcf, 0x00);
445                         /* chroma trap, HYBWR=1 */
446                         ks0127_and_or(c, KS_LUMA,   0x00,
447                                        (reg_defaults[KS_LUMA])|0x0c);
448                         /* scaler fullbw, luma comb off */
449                         ks0127_and_or(c, KS_VERTIA, 0x08, 0x81);
450                         /* manual chroma comb .25 .5 .25 */
451                         ks0127_and_or(c, KS_VERTIC, 0x0f, 0x90);
452
453                         /* chroma path delay */
454                         ks0127_and_or(c, KS_CHROMB, 0x0f, 0x90);
455
456                         ks0127_write(c, KS_UGAIN, reg_defaults[KS_UGAIN]);
457                         ks0127_write(c, KS_VGAIN, reg_defaults[KS_VGAIN]);
458                         ks0127_write(c, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
459                         ks0127_write(c, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
460                         break;
461
462                 case KS_INPUT_SVIDEO_1:
463                 case KS_INPUT_SVIDEO_2:
464                 case KS_INPUT_SVIDEO_3:
465                         v4l_dbg(1, debug, c,
466                                 "DECODER_SET_INPUT %d: S-Video\n", *iarg);
467                         /* autodetect 50/60 Hz */
468                         ks0127_and_or(c, KS_CMDA,   0xfc, 0x00);
469                         /* VSE=0 */
470                         ks0127_and_or(c, KS_CMDA,   ~0x40, 0x00);
471                         /* set input line */
472                         ks0127_and_or(c, KS_CMDB,   0xb0, *iarg);
473                         /* non-freerunning mode */
474                         ks0127_and_or(c, KS_CMDC,   0x70, 0x0a);
475                         /* analog input */
476                         ks0127_and_or(c, KS_CMDD,   0x03, 0x00);
477                         /* enable chroma demodulation */
478                         ks0127_and_or(c, KS_CTRACK, 0xcf, 0x00);
479                         ks0127_and_or(c, KS_LUMA, 0x00,
480                                        reg_defaults[KS_LUMA]);
481                         /* disable luma comb */
482                         ks0127_and_or(c, KS_VERTIA, 0x08,
483                                        (reg_defaults[KS_VERTIA]&0xf0)|0x01);
484                         ks0127_and_or(c, KS_VERTIC, 0x0f,
485                                        reg_defaults[KS_VERTIC]&0xf0);
486
487                         ks0127_and_or(c, KS_CHROMB, 0x0f,
488                                        reg_defaults[KS_CHROMB]&0xf0);
489
490                         ks0127_write(c, KS_UGAIN, reg_defaults[KS_UGAIN]);
491                         ks0127_write(c, KS_VGAIN, reg_defaults[KS_VGAIN]);
492                         ks0127_write(c, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
493                         ks0127_write(c, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
494                         break;
495
496                 case KS_INPUT_YUV656:
497                         v4l_dbg(1, debug, c,
498                                 "DECODER_SET_INPUT 15: YUV656\n");
499                         if (ks->norm == VIDEO_MODE_NTSC ||
500                             ks->norm == KS_STD_PAL_M)
501                                 /* force 60 Hz */
502                                 ks0127_and_or(c, KS_CMDA,   0xfc, 0x03);
503                         else
504                                 /* force 50 Hz */
505                                 ks0127_and_or(c, KS_CMDA,   0xfc, 0x02);
506
507                         ks0127_and_or(c, KS_CMDA,   0xff, 0x40); /* VSE=1 */
508                         /* set input line and VALIGN */
509                         ks0127_and_or(c, KS_CMDB,   0xb0, (*iarg | 0x40));
510                         /* freerunning mode, */
511                         /* TSTGEN = 1 TSTGFR=11 TSTGPH=0 TSTGPK=0  VMEM=1*/
512                         ks0127_and_or(c, KS_CMDC,   0x70, 0x87);
513                         /* digital input, SYNDIR = 0 INPSL=01 CLKDIR=0 EAV=0 */
514                         ks0127_and_or(c, KS_CMDD,   0x03, 0x08);
515                         /* disable chroma demodulation */
516                         ks0127_and_or(c, KS_CTRACK, 0xcf, 0x30);
517                         /* HYPK =01 CTRAP = 0 HYBWR=0 PED=1 RGBH=1 UNIT=1 */
518                         ks0127_and_or(c, KS_LUMA,   0x00, 0x71);
519                         ks0127_and_or(c, KS_VERTIC, 0x0f,
520                                        reg_defaults[KS_VERTIC]&0xf0);
521
522                         /* scaler fullbw, luma comb off */
523                         ks0127_and_or(c, KS_VERTIA, 0x08, 0x81);
524
525                         ks0127_and_or(c, KS_CHROMB, 0x0f,
526                                        reg_defaults[KS_CHROMB]&0xf0);
527
528                         ks0127_and_or(c, KS_CON, 0x00, 0x00);
529                         ks0127_and_or(c, KS_BRT, 0x00, 32);     /* spec: 34 */
530                                 /* spec: 229 (e5) */
531                         ks0127_and_or(c, KS_SAT, 0x00, 0xe8);
532                         ks0127_and_or(c, KS_HUE, 0x00, 0);
533
534                         ks0127_and_or(c, KS_UGAIN, 0x00, 238);
535                         ks0127_and_or(c, KS_VGAIN, 0x00, 0x00);
536
537                         /*UOFF:0x30, VOFF:0x30, TSTCGN=1 */
538                         ks0127_and_or(c, KS_UVOFFH, 0x00, 0x4f);
539                         ks0127_and_or(c, KS_UVOFFL, 0x00, 0x00);
540                         break;
541
542                 default:
543                         v4l_dbg(1, debug, c,
544                                 "DECODER_SET_INPUT: Unknown input %d\n", *iarg);
545                         break;
546                 }
547
548                 /* hack: CDMLPF sometimes spontaneously switches on; */
549                 /* force back off */
550                 ks0127_write(c, KS_DEMOD, reg_defaults[KS_DEMOD]);
551                 break;
552
553         case DECODER_SET_OUTPUT:
554                 switch(*iarg) {
555                 case KS_OUTPUT_YUV656E:
556                         v4l_dbg(1, debug, c,
557                                 "DECODER_SET_OUTPUT: OUTPUT_YUV656E (Missing)\n");
558                         return -EINVAL;
559
560                 case KS_OUTPUT_EXV:
561                         v4l_dbg(1, debug, c,
562                                 "DECODER_SET_OUTPUT: OUTPUT_EXV\n");
563                         ks0127_and_or(c, KS_OFMTA, 0xf0, 0x09);
564                         break;
565                 }
566                 break;
567
568         case DECODER_SET_NORM: /* sam This block mixes old and new norm names... */
569                 /* Set to automatic SECAM/Fsc mode */
570                 ks0127_and_or(c, KS_DEMOD, 0xf0, 0x00);
571
572                 ks->norm = *iarg;
573                 switch (*iarg) {
574                 /* this is untested !! */
575                 /* It just detects PAL_N/NTSC_M (no special frequencies) */
576                 /* And you have to set the standard a second time afterwards */
577                 case VIDEO_MODE_AUTO:
578                         v4l_dbg(1, debug, c,
579                                 "DECODER_SET_NORM: AUTO\n");
580
581                         /* The chip determines the format */
582                         /* based on the current field rate */
583                         ks0127_and_or(c, KS_CMDA,   0xfc, 0x00);
584                         ks0127_and_or(c, KS_CHROMA, 0x9f, 0x20);
585                         /* This is wrong for PAL ! As I said, */
586                         /* you need to set the standard once again !! */
587                         ks->format_height = 240;
588                         ks->format_width = 704;
589                         break;
590
591                 case VIDEO_MODE_NTSC:
592                         v4l_dbg(1, debug, c,
593                                 "DECODER_SET_NORM: NTSC_M\n");
594                         ks0127_and_or(c, KS_CHROMA, 0x9f, 0x20);
595                         ks->format_height = 240;
596                         ks->format_width = 704;
597                         break;
598
599                 case KS_STD_NTSC_N:
600                         v4l_dbg(1, debug, c,
601                                 "KS0127_SET_NORM: NTSC_N (fixme)\n");
602                         ks0127_and_or(c, KS_CHROMA, 0x9f, 0x40);
603                         ks->format_height = 240;
604                         ks->format_width = 704;
605                         break;
606
607                 case VIDEO_MODE_PAL:
608                         v4l_dbg(1, debug, c,
609                                 "DECODER_SET_NORM: PAL_N\n");
610                         ks0127_and_or(c, KS_CHROMA, 0x9f, 0x20);
611                         ks->format_height = 290;
612                         ks->format_width = 704;
613                         break;
614
615                 case KS_STD_PAL_M:
616                         v4l_dbg(1, debug, c,
617                                 "KS0127_SET_NORM: PAL_M (fixme)\n");
618                         ks0127_and_or(c, KS_CHROMA, 0x9f, 0x40);
619                         ks->format_height = 290;
620                         ks->format_width = 704;
621                         break;
622
623                 case VIDEO_MODE_SECAM:
624                         v4l_dbg(1, debug, c,
625                                 "KS0127_SET_NORM: SECAM\n");
626                         ks->format_height = 290;
627                         ks->format_width = 704;
628
629                         /* set to secam autodetection */
630                         ks0127_and_or(c, KS_CHROMA, 0xdf, 0x20);
631                         ks0127_and_or(c, KS_DEMOD, 0xf0, 0x00);
632                         schedule_timeout_interruptible(HZ/10+1);
633
634                         /* did it autodetect? */
635                         if (ks0127_read(c, KS_DEMOD) & 0x40)
636                                 break;
637
638                         /* force to secam mode */
639                         ks0127_and_or(c, KS_DEMOD, 0xf0, 0x0f);
640                         break;
641
642                 default:
643                         v4l_dbg(1, debug, c,
644                                 "DECODER_SET_NORM: Unknown norm %d\n", *iarg);
645                         break;
646                 }
647                 break;
648
649         case DECODER_SET_PICTURE:
650                 v4l_dbg(1, debug, c,
651                         "DECODER_SET_PICTURE: not yet supported\n");
652                 return -EINVAL;
653
654         /* sam todo: KS0127_SET_BRIGHTNESS: Merge into DECODER_SET_PICTURE */
655         /* sam todo: KS0127_SET_CONTRAST: Merge into DECODER_SET_PICTURE */
656         /* sam todo: KS0127_SET_HUE: Merge into DECODER_SET_PICTURE? */
657         /* sam todo: KS0127_SET_SATURATION: Merge into DECODER_SET_PICTURE */
658         /* sam todo: KS0127_SET_AGC_MODE: */
659         /* sam todo: KS0127_SET_AGC: */
660         /* sam todo: KS0127_SET_CHROMA_MODE: */
661         /* sam todo: KS0127_SET_PIXCLK_MODE: */
662         /* sam todo: KS0127_SET_GAMMA_MODE: */
663         /* sam todo: KS0127_SET_UGAIN: */
664         /* sam todo: KS0127_SET_VGAIN: */
665         /* sam todo: KS0127_SET_INVALY: */
666         /* sam todo: KS0127_SET_INVALU: */
667         /* sam todo: KS0127_SET_INVALV: */
668         /* sam todo: KS0127_SET_UNUSEY: */
669         /* sam todo: KS0127_SET_UNUSEU: */
670         /* sam todo: KS0127_SET_UNUSEV: */
671         /* sam todo: KS0127_SET_VSALIGN_MODE: */
672
673         case DECODER_ENABLE_OUTPUT:
674         {
675                 int enable;
676
677                 iarg = arg;
678                 enable = (*iarg != 0);
679                 if (enable) {
680                         v4l_dbg(1, debug, c,
681                                 "DECODER_ENABLE_OUTPUT on\n");
682                         /* All output pins on */
683                         ks0127_and_or(c, KS_OFMTA, 0xcf, 0x30);
684                         /* Obey the OEN pin */
685                         ks0127_and_or(c, KS_CDEM, 0x7f, 0x00);
686                 } else {
687                         v4l_dbg(1, debug, c,
688                                 "DECODER_ENABLE_OUTPUT off\n");
689                         /* Video output pins off */
690                         ks0127_and_or(c, KS_OFMTA, 0xcf, 0x00);
691                         /* Ignore the OEN pin */
692                         ks0127_and_or(c, KS_CDEM, 0x7f, 0x80);
693                 }
694                 break;
695         }
696
697         /* sam todo: KS0127_SET_OUTPUT_MODE: */
698         /* sam todo: KS0127_SET_WIDTH: */
699         /* sam todo: KS0127_SET_HEIGHT: */
700         /* sam todo: KS0127_SET_HSCALE: */
701
702         case DECODER_GET_STATUS:
703                 v4l_dbg(1, debug, c, "DECODER_GET_STATUS\n");
704                 *iarg = 0;
705                 status = ks0127_read(c, KS_STAT);
706                 if (!(status & 0x20))            /* NOVID not set */
707                         *iarg = (*iarg | DECODER_STATUS_GOOD);
708                 if ((status & 0x01))                  /* CLOCK set */
709                         *iarg = (*iarg | DECODER_STATUS_COLOR);
710                 if ((status & 0x08))               /* PALDET set */
711                         *iarg = (*iarg | DECODER_STATUS_PAL);
712                 else
713                         *iarg = (*iarg | DECODER_STATUS_NTSC);
714                 break;
715
716         /* Catch any unknown command */
717         default:
718                 v4l_dbg(1, debug, c, "unknown: 0x%08x\n", cmd);
719                 return -EINVAL;
720         }
721         return 0;
722 }
723
724
725 /* Addresses to scan */
726 #define I2C_KS0127_ADDON   0xD8
727 #define I2C_KS0127_ONBOARD 0xDA
728
729 static unsigned short normal_i2c[] = {
730         I2C_KS0127_ADDON >> 1,
731         I2C_KS0127_ONBOARD >> 1,
732         I2C_CLIENT_END
733 };
734
735 I2C_CLIENT_INSMOD;
736
737 static int ks0127_probe(struct i2c_client *c, const struct i2c_device_id *id)
738 {
739         struct ks0127 *ks;
740
741         v4l_info(c, "%s chip found @ 0x%x (%s)\n",
742                 c->addr == (I2C_KS0127_ADDON >> 1) ? "addon" : "on-board",
743                 c->addr << 1, c->adapter->name);
744
745         ks = kzalloc(sizeof(*ks), GFP_KERNEL);
746         if (ks == NULL)
747                 return -ENOMEM;
748
749         i2c_set_clientdata(c, ks);
750
751         ks->ks_type = KS_TYPE_UNKNOWN;
752
753         /* power up */
754         init_reg_defaults();
755         ks0127_write(c, KS_CMDA, 0x2c);
756         mdelay(10);
757
758         /* reset the device */
759         ks0127_reset(c);
760         return 0;
761 }
762
763 static int ks0127_remove(struct i2c_client *c)
764 {
765         struct ks0127 *ks = i2c_get_clientdata(c);
766
767         ks0127_write(c, KS_OFMTA, 0x20); /* tristate */
768         ks0127_write(c, KS_CMDA, 0x2c | 0x80); /* power down */
769
770         kfree(ks);
771         return 0;
772 }
773
774 static int ks0127_legacy_probe(struct i2c_adapter *adapter)
775 {
776         return adapter->id == I2C_HW_B_ZR36067;
777 }
778
779 static const struct i2c_device_id ks0127_id[] = {
780         { "ks0127", 0 },
781         { }
782 };
783 MODULE_DEVICE_TABLE(i2c, ks0127_id);
784
785 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
786         .name = "ks0127",
787         .driverid = I2C_DRIVERID_KS0127,
788         .command = ks0127_command,
789         .probe = ks0127_probe,
790         .remove = ks0127_remove,
791         .legacy_probe = ks0127_legacy_probe,
792         .id_table = ks0127_id,
793 };