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 };