LXR linux/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
 198struct adjust {
 199        int     contrast;
 200        int     bright;
 201        int     hue;
 202        int     ugain;
 203        int     vgain;
 204};
 205
 206struct 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
 219static int debug; /* insmod parameter */
 220
 221module_param(debug, int, 0);
 222MODULE_PARM_DESC(debug, "Debug output");
 223MODULE_LICENSE("GPL");
 224
 225static u8 reg_defaults[64];
 226
 227
 228
 229static 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
 321static 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
 338static 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 */
 350static 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****************************************************************************/
 362static 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
 412static 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
 683                int *iarg = arg;
 684                int enable = (*iarg != 0);
 685                        if (enable) {
 686                                dprintk("ks0127: command "
 687                                        "DECODER_ENABLE_OUTPUT on "
 688                                        "(%d)\n", enable);
 689                                /* All output pins on */
 690                                ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x30);
 691                                /* Obey the OEN pin */
 692                                ks0127_and_or(ks, KS_CDEM, 0x7f, 0x00);
 693                        } else {
 694                                dprintk("ks0127: command "
 695                                        "DECODER_ENABLE_OUTPUT off "
 696                                        "(%d)\n", enable);
 697                                /* Video output pins off */
 698                                ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x00);
 699                                /* Ignore the OEN pin */
 700                                ks0127_and_or(ks, KS_CDEM, 0x7f, 0x80);
 701                        }
 702        }
 703                break;
 704
 705        //sam todo: KS0127_SET_OUTPUT_MODE:
 706        //sam todo: KS0127_SET_WIDTH:
 707        //sam todo: KS0127_SET_HEIGHT:
 708        //sam todo: KS0127_SET_HSCALE:
 709
 710        case DECODER_GET_STATUS:
 711                dprintk("ks0127: command DECODER_GET_STATUS\n");
 712                *iarg = 0;
 713                status = ks0127_read(ks, KS_STAT);
 714                if (!(status & 0x20))            /* NOVID not set */
 715                        *iarg = (*iarg | DECODER_STATUS_GOOD);
 716                if ((status & 0x01))                  /* CLOCK set */
 717                        *iarg = (*iarg | DECODER_STATUS_COLOR);
 718                if ((status & 0x08))               /* PALDET set */
 719                        *iarg = (*iarg | DECODER_STATUS_PAL);
 720                else
 721                        *iarg = (*iarg | DECODER_STATUS_NTSC);
 722                break;
 723
 724        //Catch any unknown command
 725        default:
 726                dprintk("ks0127: command unknown: %04X\n", cmd);
 727                return -EINVAL;
 728        }
 729        return 0;
 730}
 731
 732
 733
 734
 735static int ks0127_probe(struct i2c_adapter *adapter);
 736static int ks0127_detach(struct i2c_client *client);
 737static int ks0127_command(struct i2c_client *client,
 738                          unsigned int cmd, void *arg);
 739
 740
 741
 742/* Addresses to scan */
 743static unsigned short normal_i2c[] = {I2C_KS0127_ADDON>>1,
 744                                       I2C_KS0127_ONBOARD>>1, I2C_CLIENT_END};
 745static unsigned short probe[2] =        {I2C_CLIENT_END, I2C_CLIENT_END};
 746static unsigned short ignore[2] =       {I2C_CLIENT_END, I2C_CLIENT_END};
 747static struct i2c_client_address_data addr_data = {
 748        normal_i2c,
 749        probe,
 750        ignore,
 751};
 752
 753static struct i2c_driver i2c_driver_ks0127 = {
 754        .driver.name = "ks0127",
 755        .id             = I2C_DRIVERID_KS0127,
 756        .attach_adapter = ks0127_probe,
 757        .detach_client  = ks0127_detach,
 758        .command        = ks0127_command
 759};
 760
 761static struct i2c_client ks0127_client_tmpl =
 762{
 763        .name = "(ks0127 unset)",
 764        .addr = 0,
 765        .adapter = NULL,
 766        .driver = &i2c_driver_ks0127,
 767        .usage_count = 0
 768};
 769
 770static 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
 809static 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
 816static 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
 832static int __devinit ks0127_init_module(void)
 833{
 834        init_reg_defaults();
 835        return i2c_add_driver(&i2c_driver_ks0127);
 836}
 837
 838static void __devexit ks0127_cleanup_module(void)
 839{
 840        i2c_del_driver(&i2c_driver_ks0127);
 841}
 842
 843
 844module_init(ks0127_init_module);
 845module_exit(ks0127_cleanup_module);
 846