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 #ifndef __KERNEL__
  37 #define __KERNEL__
  38 #endif
  39
  40 #include <linux/init.h>
  41 #include <linux/module.h>
  42 #include <linux/delay.h>
  43 #include <linux/errno.h>
  44 #include <linux/kernel.h>
  45 #include <linux/slab.h>
  46 #include <linux/proc_fs.h>
  47 #include "ks0127.h"
  48
  49 #include <linux/i2c.h>
  50 #include <linux/video_decoder.h>
  51
  52 #define dprintk     if (debug) printk
  53
  54 /* i2c identification */
  55 #define I2C_KS0127_ADDON   0xD8
  56 #define I2C_KS0127_ONBOARD 0xDA
  57
  58 #define KS_TYPE_UNKNOWN 0
  59 #define KS_TYPE_0122S   1
  60 #define KS_TYPE_0127    2
  61 #define KS_TYPE_0127B   3
  62
  63 /* ks0127 control registers */
  64 #define KS_STAT     0x00
  65 #define KS_CMDA     0x01
  66 #define KS_CMDB     0x02
  67 #define KS_CMDC     0x03
  68 #define KS_CMDD     0x04
  69 #define KS_HAVB     0x05
  70 #define KS_HAVE     0x06
  71 #define KS_HS1B     0x07
  72 #define KS_HS1E     0x08
  73 #define KS_HS2B     0x09
  74 #define KS_HS2E     0x0a
  75 #define KS_AGC      0x0b
  76 #define KS_HXTRA    0x0c
  77 #define KS_CDEM     0x0d
  78 #define KS_PORTAB   0x0e
  79 #define KS_LUMA     0x0f
  80 #define KS_CON      0x10
  81 #define KS_BRT      0x11
  82 #define KS_CHROMA   0x12
  83 #define KS_CHROMB   0x13
  84 #define KS_DEMOD    0x14
  85 #define KS_SAT      0x15
  86 #define KS_HUE      0x16
  87 #define KS_VERTIA   0x17
  88 #define KS_VERTIB   0x18
  89 #define KS_VERTIC   0x19
  90 #define KS_HSCLL    0x1a
  91 #define KS_HSCLH    0x1b
  92 #define KS_VSCLL    0x1c
  93 #define KS_VSCLH    0x1d
  94 #define KS_OFMTA    0x1e
  95 #define KS_OFMTB    0x1f
  96 #define KS_VBICTL   0x20
  97 #define KS_CCDAT2   0x21
  98 #define KS_CCDAT1   0x22
  99 #define KS_VBIL30   0x23
 100 #define KS_VBIL74   0x24
 101 #define KS_VBIL118  0x25
 102 #define KS_VBIL1512 0x26
 103 #define KS_TTFRAM   0x27
 104 #define KS_TESTA    0x28
 105 #define KS_UVOFFH   0x29
 106 #define KS_UVOFFL   0x2a
 107 #define KS_UGAIN    0x2b
 108 #define KS_VGAIN    0x2c
 109 #define KS_VAVB     0x2d
 110 #define KS_VAVE     0x2e
 111 #define KS_CTRACK   0x2f
 112 #define KS_POLCTL   0x30
 113 #define KS_REFCOD   0x31
 114 #define KS_INVALY   0x32
 115 #define KS_INVALU   0x33
 116 #define KS_INVALV   0x34
 117 #define KS_UNUSEY   0x35
 118 #define KS_UNUSEU   0x36
 119 #define KS_UNUSEV   0x37
 120 #define KS_USRSAV   0x38
 121 #define KS_USREAV   0x39
 122 #define KS_SHS1A    0x3a
 123 #define KS_SHS1B    0x3b
 124 #define KS_SHS1C    0x3c
 125 #define KS_CMDE     0x3d
 126 #define KS_VSDEL    0x3e
 127 #define KS_CMDF     0x3f
 128 #define KS_GAMMA0   0x40
 129 #define KS_GAMMA1   0x41
 130 #define KS_GAMMA2   0x42
 131 #define KS_GAMMA3   0x43
 132 #define KS_GAMMA4   0x44
 133 #define KS_GAMMA5   0x45
 134 #define KS_GAMMA6   0x46
 135 #define KS_GAMMA7   0x47
 136 #define KS_GAMMA8   0x48
 137 #define KS_GAMMA9   0x49
 138 #define KS_GAMMA10  0x4a
 139 #define KS_GAMMA11  0x4b
 140 #define KS_GAMMA12  0x4c
 141 #define KS_GAMMA13  0x4d
 142 #define KS_GAMMA14  0x4e
 143 #define KS_GAMMA15  0x4f
 144 #define KS_GAMMA16  0x50
 145 #define KS_GAMMA17  0x51
 146 #define KS_GAMMA18  0x52
 147 #define KS_GAMMA19  0x53
 148 #define KS_GAMMA20  0x54
 149 #define KS_GAMMA21  0x55
 150 #define KS_GAMMA22  0x56
 151 #define KS_GAMMA23  0x57
 152 #define KS_GAMMA24  0x58
 153 #define KS_GAMMA25  0x59
 154 #define KS_GAMMA26  0x5a
 155 #define KS_GAMMA27  0x5b
 156 #define KS_GAMMA28  0x5c
 157 #define KS_GAMMA29  0x5d
 158 #define KS_GAMMA30  0x5e
 159 #define KS_GAMMA31  0x5f
 160 #define KS_GAMMAD0  0x60
 161 #define KS_GAMMAD1  0x61
 162 #define KS_GAMMAD2  0x62
 163 #define KS_GAMMAD3  0x63
 164 #define KS_GAMMAD4  0x64
 165 #define KS_GAMMAD5  0x65
 166 #define KS_GAMMAD6  0x66
 167 #define KS_GAMMAD7  0x67
 168 #define KS_GAMMAD8  0x68
 169 #define KS_GAMMAD9  0x69
 170 #define KS_GAMMAD10 0x6a
 171 #define KS_GAMMAD11 0x6b
 172 #define KS_GAMMAD12 0x6c
 173 #define KS_GAMMAD13 0x6d
 174 #define KS_GAMMAD14 0x6e
 175 #define KS_GAMMAD15 0x6f
 176 #define KS_GAMMAD16 0x70
 177 #define KS_GAMMAD17 0x71
 178 #define KS_GAMMAD18 0x72
 179 #define KS_GAMMAD19 0x73
 180 #define KS_GAMMAD20 0x74
 181 #define KS_GAMMAD21 0x75
 182 #define KS_GAMMAD22 0x76
 183 #define KS_GAMMAD23 0x77
 184 #define KS_GAMMAD24 0x78
 185 #define KS_GAMMAD25 0x79
 186 #define KS_GAMMAD26 0x7a
 187 #define KS_GAMMAD27 0x7b
 188 #define KS_GAMMAD28 0x7c
 189 #define KS_GAMMAD29 0x7d
 190 #define KS_GAMMAD30 0x7e
 191 #define KS_GAMMAD31 0x7f
 192
 193
 194 /****************************************************************************
 195 * mga_dev : represents one ks0127 chip.
 196 ****************************************************************************/
 197
 198 struct adjust {
 199         int     contrast;
 200         int     bright;
 201         int     hue;
 202         int     ugain;
 203         int     vgain;
 204 };
 205
 206 struct ks0127 {
 207         struct i2c_client *client;
 208         unsigned char   addr;
 209         int             format_width;
 210         int             format_height;
 211         int             cap_width;
 212         int             cap_height;
 213         int             norm;
 214         int             ks_type;
 215         u8              regs[256];
 216 };
 217
 218
 219 static int debug; /* insmod parameter */
 220
 221 module_param(debug, int, 0);
 222 MODULE_PARM_DESC(debug, "Debug output");
 223 MODULE_LICENSE("GPL");
 224
 225 static u8 reg_defaults[64];
 226
 227
 228
 229 static void init_reg_defaults(void)
 230 {
 231         u8 *table = reg_defaults;
 232
 233         table[KS_CMDA]     = 0x2c;  /* VSE=0, CCIR 601, autodetect standard */
 234         table[KS_CMDB]     = 0x12;  /* VALIGN=0, AGC control and input */
 235         table[KS_CMDC]     = 0x00;  /* Test options */
 236         /* clock & input select, write 1 to PORTA */
 237         table[KS_CMDD]     = 0x01;
 238         table[KS_HAVB]     = 0x00;  /* HAV Start Control */
 239         table[KS_HAVE]     = 0x00;  /* HAV End Control */
 240         table[KS_HS1B]     = 0x10;  /* HS1 Start Control */
 241         table[KS_HS1E]     = 0x00;  /* HS1 End Control */
 242         table[KS_HS2B]     = 0x00;  /* HS2 Start Control */
 243         table[KS_HS2E]     = 0x00;  /* HS2 End Control */
 244         table[KS_AGC]      = 0x53;  /* Manual setting for AGC */
 245         table[KS_HXTRA]    = 0x00;  /* Extra Bits for HAV and HS1/2 */
 246         table[KS_CDEM]     = 0x00;  /* Chroma Demodulation Control */
 247         table[KS_PORTAB]   = 0x0f;  /* port B is input, port A output GPPORT */
 248         table[KS_LUMA]     = 0x01;  /* Luma control */
 249         table[KS_CON]      = 0x00;  /* Contrast Control */
 250         table[KS_BRT]      = 0x00;  /* Brightness Control */
 251         table[KS_CHROMA]   = 0x2a;  /* Chroma control A */
 252         table[KS_CHROMB]   = 0x90;  /* Chroma control B */
 253         table[KS_DEMOD]    = 0x00;  /* Chroma Demodulation Control & Status */
 254         table[KS_SAT]      = 0x00;  /* Color Saturation Control*/
 255         table[KS_HUE]      = 0x00;  /* Hue Control */
 256         table[KS_VERTIA]   = 0x00;  /* Vertical Processing Control A */
 257         /* Vertical Processing Control B, luma 1 line delayed */
 258         table[KS_VERTIB]   = 0x12;
 259         table[KS_VERTIC]   = 0x0b;  /* Vertical Processing Control C */
 260         table[KS_HSCLL]    = 0x00;  /* Horizontal Scaling Ratio Low */
 261         table[KS_HSCLH]    = 0x00;  /* Horizontal Scaling Ratio High */
 262         table[KS_VSCLL]    = 0x00;  /* Vertical Scaling Ratio Low */
 263         table[KS_VSCLH]    = 0x00;  /* Vertical Scaling Ratio High */
 264         /* 16 bit YCbCr 4:2:2 output; I can't make the bt866 like 8 bit /Sam */
 265         table[KS_OFMTA]    = 0x30;
 266         table[KS_OFMTB]    = 0x00;  /* Output Control B */
 267         /* VBI Decoder Control; 4bit fmt: avoid Y overflow */
 268         table[KS_VBICTL]   = 0x5d;
 269         table[KS_CCDAT2]   = 0x00;  /* Read Only register */
 270         table[KS_CCDAT1]   = 0x00;  /* Read Only register */
 271         table[KS_VBIL30]   = 0xa8;  /* VBI data decoding options */
 272         table[KS_VBIL74]   = 0xaa;  /* VBI data decoding options */
 273         table[KS_VBIL118]  = 0x2a;  /* VBI data decoding options */
 274         table[KS_VBIL1512] = 0x00;  /* VBI data decoding options */
 275         table[KS_TTFRAM]   = 0x00;  /* Teletext frame alignment pattern */
 276         table[KS_TESTA]    = 0x00;  /* test register, shouldn't be written */
 277         table[KS_UVOFFH]   = 0x00;  /* UV Offset Adjustment High */
 278         table[KS_UVOFFL]   = 0x00;  /* UV Offset Adjustment Low */
 279         table[KS_UGAIN]    = 0x00;  /* U Component Gain Adjustment */
 280         table[KS_VGAIN]    = 0x00;  /* V Component Gain Adjustment */
 281         table[KS_VAVB]     = 0x07;  /* VAV Begin */
 282         table[KS_VAVE]     = 0x00;  /* VAV End */
 283         table[KS_CTRACK]   = 0x00;  /* Chroma Tracking Control */
 284         table[KS_POLCTL]   = 0x41;  /* Timing Signal Polarity Control */
 285         table[KS_REFCOD]   = 0x80;  /* Reference Code Insertion Control */
 286         table[KS_INVALY]   = 0x10;  /* Invalid Y Code */
 287         table[KS_INVALU]   = 0x80;  /* Invalid U Code */
 288         table[KS_INVALV]   = 0x80;  /* Invalid V Code */
 289         table[KS_UNUSEY]   = 0x10;  /* Unused Y Code */
 290         table[KS_UNUSEU]   = 0x80;  /* Unused U Code */
 291         table[KS_UNUSEV]   = 0x80;  /* Unused V Code */
 292         table[KS_USRSAV]   = 0x00;  /* reserved */
 293         table[KS_USREAV]   = 0x00;  /* reserved */
 294         table[KS_SHS1A]    = 0x00;  /* User Defined SHS1 A */
 295         /* User Defined SHS1 B, ALT656=1 on 0127B */
 296         table[KS_SHS1B]    = 0x80;
 297         table[KS_SHS1C]    = 0x00;  /* User Defined SHS1 C */
 298         table[KS_CMDE]     = 0x00;  /* Command Register E */
 299         table[KS_VSDEL]    = 0x00;  /* VS Delay Control */
 300         /* Command Register F, update -immediately- */
 301         /* (there might come no vsync)*/
 302         table[KS_CMDF]     = 0x02;
 303 }
 304
 305
 306 /* We need to manually read because of a bug in the KS0127 chip.
 307  *
 308  * An explanation from kayork@mail.utexas.edu:
 309  *
 310  * During I2C reads, the KS0127 only samples for a stop condition
 311  * during the place where the acknoledge bit should be. Any standard
 312  * I2C implementation (correctly) throws in another clock transition
 313  * at the 9th bit, and the KS0127 will not recognize the stop condition
 314  * and will continue to clock out data.
 315  *
 316  * So we have to do the read ourself.  Big deal.
 317            workaround in i2c-algo-bit
 318  */
 319
 320
 321 static u8 ks0127_read(struct ks0127 *ks, u8 reg)
 322 {
 323         struct i2c_client *c = ks->client;
 324         char val = 0;
 325         struct i2c_msg msgs[] = {
 326                 {c->addr, 0, sizeof(reg), &reg},
 327                 {c->addr, I2C_M_RD | I2C_M_NO_RD_ACK, sizeof(val), &val}};
 328         int ret;
 329
 330         ret = i2c_transfer(c->adapter, msgs, ARRAY_SIZE(msgs));
 331         if (ret != ARRAY_SIZE(msgs))
 332                 dprintk("ks0127_write error\n");
 333
 334         return val;
 335 }
 336
 337
 338 static void ks0127_write(struct ks0127 *ks, u8 reg, u8 val)
 339 {
 340         char msg[] = {reg, val};
 341
 342         if (i2c_master_send(ks->client, msg, sizeof(msg)) != sizeof(msg))
 343                 dprintk("ks0127_write error\n");
 344
 345         ks->regs[reg] = val;
 346 }
 347
 348
 349 /* generic bit-twiddling */
 350 static void ks0127_and_or(struct ks0127 *ks, u8 reg, u8 and_v, u8 or_v)
 351 {
 352         u8 val = ks->regs[reg];
 353         val = (val & and_v) | or_v;
 354         ks0127_write(ks, reg, val);
 355 }
 356
 357
 358
 359 /****************************************************************************
 360 * ks0127 private api
 361 ****************************************************************************/
 362 static void ks0127_reset(struct ks0127* ks)
 363 {
 364         int i;
 365         u8 *table = reg_defaults;
 366
 367         ks->ks_type = KS_TYPE_UNKNOWN;
 368
 369         dprintk("ks0127: reset\n");
 370         msleep(1);
 371
 372         /* initialize all registers to known values */
 373         /* (except STAT, 0x21, 0x22, TEST and 0x38,0x39) */
 374
 375         for(i = 1; i < 33; i++)
 376                 ks0127_write(ks, i, table[i]);
 377
 378         for(i = 35; i < 40; i++)
 379                 ks0127_write(ks, i, table[i]);
 380
 381         for(i = 41; i < 56; i++)
 382                 ks0127_write(ks, i, table[i]);
 383
 384         for(i = 58; i < 64; i++)
 385                 ks0127_write(ks, i, table[i]);
 386
 387
 388         if ((ks0127_read(ks, KS_STAT) & 0x80) == 0) {
 389                 ks->ks_type = KS_TYPE_0122S;
 390                 dprintk("ks0127: ks0122s Found\n");
 391                 return;
 392         }
 393
 394         switch(ks0127_read(ks, KS_CMDE) & 0x0f) {
 395
 396         case 0:
 397                 ks->ks_type = KS_TYPE_0127;
 398                 dprintk("ks0127: ks0127 found\n");
 399                 break;
 400
 401         case 9:
 402                 ks->ks_type = KS_TYPE_0127B;
 403                 dprintk("ks0127: ks0127B Revision A found\n");
 404                 break;
 405
 406         default:
 407                 dprintk("ks0127: unknown revision\n");
 408                 break;
 409         }
 410 }
 411
 412 static int ks0127_command(struct i2c_client *client,
 413                           unsigned int cmd, void *arg)
 414 {
 415         struct ks0127 *ks = i2c_get_clientdata(client);
 416
 417         int             *iarg = (int*)arg;
 418
 419         int             status;
 420
 421         if (!ks)
 422                 return -ENODEV;
 423
 424         switch (cmd) {
 425
 426         case DECODER_INIT:
 427                 dprintk("ks0127: command DECODER_INIT\n");
 428                 ks0127_reset(ks);
 429                 break;
 430
 431         case DECODER_SET_INPUT:
 432                 switch(*iarg) {
 433                 case KS_INPUT_COMPOSITE_1:
 434                 case KS_INPUT_COMPOSITE_2:
 435                 case KS_INPUT_COMPOSITE_3:
 436                 case KS_INPUT_COMPOSITE_4:
 437                 case KS_INPUT_COMPOSITE_5:
 438                 case KS_INPUT_COMPOSITE_6:
 439                         dprintk("ks0127: command DECODER_SET_INPUT %d: "
 440                                 "Composite\n", *iarg);
 441                         /* autodetect 50/60 Hz */
 442                         ks0127_and_or(ks, KS_CMDA,   0xfc, 0x00);
 443                         /* VSE=0 */
 444                         ks0127_and_or(ks, KS_CMDA,   ~0x40, 0x00);
 445                         /* set input line */
 446                         ks0127_and_or(ks, KS_CMDB,   0xb0, *iarg);
 447                         /* non-freerunning mode */
 448                         ks0127_and_or(ks, KS_CMDC,   0x70, 0x0a);
 449                         /* analog input */
 450                         ks0127_and_or(ks, KS_CMDD,   0x03, 0x00);
 451                         /* enable chroma demodulation */
 452                         ks0127_and_or(ks, KS_CTRACK, 0xcf, 0x00);
 453                         /* chroma trap, HYBWR=1 */
 454                         ks0127_and_or(ks, KS_LUMA,   0x00,
 455                                        (reg_defaults[KS_LUMA])|0x0c);
 456                         /* scaler fullbw, luma comb off */
 457                         ks0127_and_or(ks, KS_VERTIA, 0x08, 0x81);
 458                         /* manual chroma comb .25 .5 .25 */
 459                         ks0127_and_or(ks, KS_VERTIC, 0x0f, 0x90);
 460
 461                         /* chroma path delay */
 462                         ks0127_and_or(ks, KS_CHROMB, 0x0f, 0x90);
 463
 464                         ks0127_write(ks, KS_UGAIN, reg_defaults[KS_UGAIN]);
 465                         ks0127_write(ks, KS_VGAIN, reg_defaults[KS_VGAIN]);
 466                         ks0127_write(ks, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
 467                         ks0127_write(ks, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
 468                         break;
 469
 470                 case KS_INPUT_SVIDEO_1:
 471                 case KS_INPUT_SVIDEO_2:
 472                 case KS_INPUT_SVIDEO_3:
 473                         dprintk("ks0127: command DECODER_SET_INPUT %d: "
 474                                 "S-Video\n", *iarg);
 475                         /* autodetect 50/60 Hz */
 476                         ks0127_and_or(ks, KS_CMDA,   0xfc, 0x00);
 477                         /* VSE=0 */
 478                         ks0127_and_or(ks, KS_CMDA,   ~0x40, 0x00);
 479                         /* set input line */
 480                         ks0127_and_or(ks, KS_CMDB,   0xb0, *iarg);
 481                         /* non-freerunning mode */
 482                         ks0127_and_or(ks, KS_CMDC,   0x70, 0x0a);
 483                         /* analog input */
 484                         ks0127_and_or(ks, KS_CMDD,   0x03, 0x00);
 485                         /* enable chroma demodulation */
 486                         ks0127_and_or(ks, KS_CTRACK, 0xcf, 0x00);
 487                         ks0127_and_or(ks, KS_LUMA, 0x00,
 488                                        reg_defaults[KS_LUMA]);
 489                         /* disable luma comb */
 490                         ks0127_and_or(ks, KS_VERTIA, 0x08,
 491                                        (reg_defaults[KS_VERTIA]&0xf0)|0x01);
 492                         ks0127_and_or(ks, KS_VERTIC, 0x0f,
 493                                        reg_defaults[KS_VERTIC]&0xf0);
 494
 495                         ks0127_and_or(ks, KS_CHROMB, 0x0f,
 496                                        reg_defaults[KS_CHROMB]&0xf0);
 497
 498                         ks0127_write(ks, KS_UGAIN, reg_defaults[KS_UGAIN]);
 499                         ks0127_write(ks, KS_VGAIN, reg_defaults[KS_VGAIN]);
 500                         ks0127_write(ks, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
 501                         ks0127_write(ks, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
 502                         break;
 503
 504                 case KS_INPUT_YUV656:
 505                         dprintk("ks0127: command DECODER_SET_INPUT 15: "
 506                                 "YUV656\n");
 507                         if (ks->norm == VIDEO_MODE_NTSC ||
 508                             ks->norm == KS_STD_PAL_M)
 509                                 /* force 60 Hz */
 510                                 ks0127_and_or(ks, KS_CMDA,   0xfc, 0x03);
 511                         else
 512                                 /* force 50 Hz */
 513                                 ks0127_and_or(ks, KS_CMDA,   0xfc, 0x02);
 514
 515                         ks0127_and_or(ks, KS_CMDA,   0xff, 0x40); /* VSE=1 */
 516                         /* set input line and VALIGN */
 517                         ks0127_and_or(ks, KS_CMDB,   0xb0, (*iarg | 0x40));
 518                         /* freerunning mode, */
 519                         /* TSTGEN = 1 TSTGFR=11 TSTGPH=0 TSTGPK=0  VMEM=1*/
 520                         ks0127_and_or(ks, KS_CMDC,   0x70, 0x87);
 521                         /* digital input, SYNDIR = 0 INPSL=01 CLKDIR=0 EAV=0 */
 522                         ks0127_and_or(ks, KS_CMDD,   0x03, 0x08);
 523                         /* disable chroma demodulation */
 524                         ks0127_and_or(ks, KS_CTRACK, 0xcf, 0x30);
 525                         /* HYPK =01 CTRAP = 0 HYBWR=0 PED=1 RGBH=1 UNIT=1 */
 526                         ks0127_and_or(ks, KS_LUMA,   0x00, 0x71);
 527                         ks0127_and_or(ks, KS_VERTIC, 0x0f,
 528                                        reg_defaults[KS_VERTIC]&0xf0);
 529
 530                         /* scaler fullbw, luma comb off */
 531                         ks0127_and_or(ks, KS_VERTIA, 0x08, 0x81);
 532
 533                         ks0127_and_or(ks, KS_CHROMB, 0x0f,
 534                                        reg_defaults[KS_CHROMB]&0xf0);
 535
 536                         ks0127_and_or(ks, KS_CON, 0x00, 0x00);
 537                         ks0127_and_or(ks, KS_BRT, 0x00, 32);    /* spec: 34 */
 538                                 /* spec: 229 (e5) */
 539                         ks0127_and_or(ks, KS_SAT, 0x00, 0xe8);
 540                         ks0127_and_or(ks, KS_HUE, 0x00, 0);
 541
 542                         ks0127_and_or(ks, KS_UGAIN, 0x00, 238);
 543                         ks0127_and_or(ks, KS_VGAIN, 0x00, 0x00);
 544
 545                         /*UOFF:0x30, VOFF:0x30, TSTCGN=1 */
 546                         ks0127_and_or(ks, KS_UVOFFH, 0x00, 0x4f);
 547                         ks0127_and_or(ks, KS_UVOFFL, 0x00, 0x00);
 548                         break;
 549
 550                 default:
 551                         dprintk("ks0127: command DECODER_SET_INPUT: "
 552                                 "Unknown input %d\n", *iarg);
 553                         break;
 554                 }
 555
 556                 /* hack: CDMLPF sometimes spontaneously switches on; */
 557                 /* force back off */
 558                 ks0127_write(ks, KS_DEMOD, reg_defaults[KS_DEMOD]);
 559                 break;
 560
 561         case DECODER_SET_OUTPUT:
 562                 switch(*iarg) {
 563                 case KS_OUTPUT_YUV656E:
 564                         dprintk("ks0127: command DECODER_SET_OUTPUT: "
 565                                 "OUTPUT_YUV656E (Missing)\n");
 566                         return -EINVAL;
 567                         break;
 568
 569                 case KS_OUTPUT_EXV:
 570                         dprintk("ks0127: command DECODER_SET_OUTPUT: "
 571                                 "OUTPUT_EXV\n");
 572                         ks0127_and_or(ks, KS_OFMTA, 0xf0, 0x09);
 573                         break;
 574                 }
 575                 break;
 576
 577         case DECODER_SET_NORM: //sam This block mixes old and new norm names...
 578                 /* Set to automatic SECAM/Fsc mode */
 579                 ks0127_and_or(ks, KS_DEMOD, 0xf0, 0x00);
 580
 581                 ks->norm = *iarg;
 582                 switch(*iarg)
 583                 {
 584                 /* this is untested !! */
 585                 /* It just detects PAL_N/NTSC_M (no special frequencies) */
 586                 /* And you have to set the standard a second time afterwards */
 587                 case VIDEO_MODE_AUTO:
 588                         dprintk("ks0127: command DECODER_SET_NORM: AUTO\n");
 589
 590                         /* The chip determines the format */
 591                         /* based on the current field rate */
 592                         ks0127_and_or(ks, KS_CMDA,   0xfc, 0x00);
 593                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x20);
 594                         /* This is wrong for PAL ! As I said, */
 595                         /* you need to set the standard once again !! */
 596                         ks->format_height = 240;
 597                         ks->format_width = 704;
 598                         break;
 599
 600                 case VIDEO_MODE_NTSC:
 601                         dprintk("ks0127: command DECODER_SET_NORM: NTSC_M\n");
 602                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x20);
 603                         ks->format_height = 240;
 604                         ks->format_width = 704;
 605                         break;
 606
 607                 case KS_STD_NTSC_N:
 608                         dprintk("ks0127: command KS0127_SET_STANDARD: "
 609                                 "NTSC_N (fixme)\n");
 610                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x40);
 611                         ks->format_height = 240;
 612                         ks->format_width = 704;
 613                         break;
 614
 615                 case VIDEO_MODE_PAL:
 616                         dprintk("ks0127: command DECODER_SET_NORM: PAL_N\n");
 617                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x20);
 618                         ks->format_height = 290;
 619                         ks->format_width = 704;
 620                         break;
 621
 622                 case KS_STD_PAL_M:
 623                         dprintk("ks0127: command KS0127_SET_STANDARD: "
 624                                 "PAL_M (fixme)\n");
 625                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x40);
 626                         ks->format_height = 290;
 627                         ks->format_width = 704;
 628                         break;
 629
 630                 case VIDEO_MODE_SECAM:
 631                         dprintk("ks0127: command KS0127_SET_STANDARD: "
 632                                 "SECAM\n");
 633                         ks->format_height = 290;
 634                         ks->format_width = 704;
 635
 636                         /* set to secam autodetection */
 637                         ks0127_and_or(ks, KS_CHROMA, 0xdf, 0x20);
 638                         ks0127_and_or(ks, KS_DEMOD, 0xf0, 0x00);
 639                         schedule_timeout_interruptible(HZ/10+1);
 640
 641                         /* did it autodetect? */
 642                         if (ks0127_read(ks, KS_DEMOD) & 0x40)
 643                                 break;
 644
 645                         /* force to secam mode */
 646                         ks0127_and_or(ks, KS_DEMOD, 0xf0, 0x0f);
 647                         break;
 648
 649                 default:
 650                         dprintk("ks0127: command DECODER_SET_NORM: "
 651                                 "Unknown norm %d\n", *iarg);
 652                         break;
 653                 }
 654                 break;
 655
 656         case DECODER_SET_PICTURE:
 657                 dprintk("ks0127: command DECODER_SET_PICTURE "
 658                         "not yet supported (fixme)\n");
 659                 return -EINVAL;
 660
 661         //sam todo: KS0127_SET_BRIGHTNESS: Merge into DECODER_SET_PICTURE
 662         //sam todo: KS0127_SET_CONTRAST: Merge into DECODER_SET_PICTURE
 663         //sam todo: KS0127_SET_HUE: Merge into DECODER_SET_PICTURE?
 664         //sam todo: KS0127_SET_SATURATION: Merge into DECODER_SET_PICTURE
 665         //sam todo: KS0127_SET_AGC_MODE:
 666         //sam todo: KS0127_SET_AGC:
 667         //sam todo: KS0127_SET_CHROMA_MODE:
 668         //sam todo: KS0127_SET_PIXCLK_MODE:
 669         //sam todo: KS0127_SET_GAMMA_MODE:
 670         //sam todo: KS0127_SET_UGAIN:
 671         //sam todo: KS0127_SET_VGAIN:
 672         //sam todo: KS0127_SET_INVALY:
 673         //sam todo: KS0127_SET_INVALU:
 674         //sam todo: KS0127_SET_INVALV:
 675         //sam todo: KS0127_SET_UNUSEY:
 676         //sam todo: KS0127_SET_UNUSEU:
 677         //sam todo: KS0127_SET_UNUSEV:
 678         //sam todo: KS0127_SET_VSALIGN_MODE:
 679
 680         case DECODER_ENABLE_OUTPUT:
 681         {
 682                 int enable;
 683
 684                 iarg = arg;
 685                 enable = (*iarg != 0);
 686                 if (enable) {
 687                         dprintk("ks0127: command "
 688                                         "DECODER_ENABLE_OUTPUT on "
 689                                         "(%d)\n", enable);
 690                         /* All output pins on */
 691                         ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x30);
 692                         /* Obey the OEN pin */
 693                         ks0127_and_or(ks, KS_CDEM, 0x7f, 0x00);
 694                 } else {
 695                         dprintk("ks0127: command "
 696                                         "DECODER_ENABLE_OUTPUT off "
 697                                         "(%d)\n", enable);
 698                         /* Video output pins off */
 699                         ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x00);
 700                         /* Ignore the OEN pin */
 701                         ks0127_and_or(ks, KS_CDEM, 0x7f, 0x80);
 702                 }
 703         }
 704                 break;
 705
 706         //sam todo: KS0127_SET_OUTPUT_MODE:
 707         //sam todo: KS0127_SET_WIDTH:
 708         //sam todo: KS0127_SET_HEIGHT:
 709         //sam todo: KS0127_SET_HSCALE:
 710
 711         case DECODER_GET_STATUS:
 712                 dprintk("ks0127: command DECODER_GET_STATUS\n");
 713                 *iarg = 0;
 714                 status = ks0127_read(ks, KS_STAT);
 715                 if (!(status & 0x20))            /* NOVID not set */
 716                         *iarg = (*iarg | DECODER_STATUS_GOOD);
 717                 if ((status & 0x01))                  /* CLOCK set */
 718                         *iarg = (*iarg | DECODER_STATUS_COLOR);
 719                 if ((status & 0x08))               /* PALDET set */
 720                         *iarg = (*iarg | DECODER_STATUS_PAL);
 721                 else
 722                         *iarg = (*iarg | DECODER_STATUS_NTSC);
 723                 break;
 724
 725         //Catch any unknown command
 726         default:
 727                 dprintk("ks0127: command unknown: %04X\n", cmd);
 728                 return -EINVAL;
 729         }
 730         return 0;
 731 }
 732
 733
 734
 735
 736 static int ks0127_probe(struct i2c_adapter *adapter);
 737 static int ks0127_detach(struct i2c_client *client);
 738 static int ks0127_command(struct i2c_client *client,
 739                           unsigned int cmd, void *arg);
 740
 741
 742
 743 /* Addresses to scan */
 744 static unsigned short normal_i2c[] = {I2C_KS0127_ADDON>>1,
 745                                        I2C_KS0127_ONBOARD>>1, I2C_CLIENT_END};
 746 static unsigned short probe[2] =        {I2C_CLIENT_END, I2C_CLIENT_END};
 747 static unsigned short ignore[2] =       {I2C_CLIENT_END, I2C_CLIENT_END};
 748 static struct i2c_client_address_data addr_data = {
 749         normal_i2c,
 750         probe,
 751         ignore,
 752 };
 753
 754 static struct i2c_driver i2c_driver_ks0127 = {
 755         .driver.name = "ks0127",
 756         .id             = I2C_DRIVERID_KS0127,
 757         .attach_adapter = ks0127_probe,
 758         .detach_client  = ks0127_detach,
 759         .command        = ks0127_command
 760 };
 761
 762 static struct i2c_client ks0127_client_tmpl =
 763 {
 764         .name = "(ks0127 unset)",
 765         .addr = 0,
 766         .adapter = NULL,
 767         .driver = &i2c_driver_ks0127,
 768 };
 769
 770 static int ks0127_found_proc(struct i2c_adapter *adapter, int addr, int kind)
 771 {
 772         struct ks0127 *ks;
 773         struct i2c_client *client;
 774
 775         client = kzalloc(sizeof(*client), GFP_KERNEL);
 776         if (client == NULL)
 777                 return -ENOMEM;
 778         memcpy(client, &ks0127_client_tmpl, sizeof(*client));
 779
 780         ks = kzalloc(sizeof(*ks), GFP_KERNEL);
 781         if (ks == NULL) {
 782                 kfree(client);
 783                 return -ENOMEM;
 784         }
 785
 786         i2c_set_clientdata(client, ks);
 787         client->adapter = adapter;
 788         client->addr = addr;
 789         sprintf(client->name, "ks0127-%02x", adapter->id);
 790
 791         ks->client = client;
 792         ks->addr = addr;
 793         ks->ks_type = KS_TYPE_UNKNOWN;
 794
 795         /* power up */
 796         ks0127_write(ks, KS_CMDA, 0x2c);
 797         mdelay(10);
 798
 799         /* reset the device */
 800         ks0127_reset(ks);
 801         printk(KERN_INFO "ks0127: attach: %s video decoder\n",
 802                ks->addr==(I2C_KS0127_ADDON>>1) ? "addon" : "on-board");
 803
 804         i2c_attach_client(client);
 805         return 0;
 806 }
 807
 808
 809 static int ks0127_probe(struct i2c_adapter *adapter)
 810 {
 811         if (adapter->id == I2C_HW_B_ZR36067)
 812                 return i2c_probe(adapter, &addr_data, ks0127_found_proc);
 813         return 0;
 814 }
 815
 816 static int ks0127_detach(struct i2c_client *client)
 817 {
 818         struct ks0127 *ks = i2c_get_clientdata(client);
 819
 820         ks0127_write(ks, KS_OFMTA, 0x20); /*tristate*/
 821         ks0127_write(ks, KS_CMDA, 0x2c | 0x80); /* power down */
 822
 823         i2c_detach_client(client);
 824         kfree(ks);
 825         kfree(client);
 826
 827         dprintk("ks0127: detach\n");
 828         return 0;
 829 }
 830
 831
 832 static int __devinit ks0127_init_module(void)
 833 {
 834         init_reg_defaults();
 835         return i2c_add_driver(&i2c_driver_ks0127);
 836 }
 837
 838 static void __devexit ks0127_cleanup_module(void)
 839 {
 840         i2c_del_driver(&i2c_driver_ks0127);
 841 }
 842
 843
 844 module_init(ks0127_init_module);
 845 module_exit(ks0127_cleanup_module);