git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/saa7114.c

   1 /*
   2  * saa7114 - Philips SAA7114H video decoder driver version 0.0.1
   3  *
   4  * Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
   5  *
   6  * Based on saa7111 driver by Dave Perks
   7  *
   8  * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
   9  *
  10  * Slight changes for video timing and attachment output by
  11  * Wolfgang Scherr <scherr@net4you.net>
  12  *
  13  * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
  14  *    - moved over to linux>=2.4.x i2c protocol (1/1/2003)
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  29  */
  30
  31 #include <linux/module.h>
  32 #include <linux/types.h>
  33 #include <linux/ioctl.h>
  34 #include <asm/uaccess.h>
  35 #include <linux/i2c.h>
  36 #include <linux/i2c-id.h>
  37 #include <linux/videodev.h>
  38 #include <linux/video_decoder.h>
  39 #include <media/v4l2-common.h>
  40 #include <media/v4l2-i2c-drv-legacy.h>
  41
  42 MODULE_DESCRIPTION("Philips SAA7114H video decoder driver");
  43 MODULE_AUTHOR("Maxim Yevtyushkin");
  44 MODULE_LICENSE("GPL");
  45
  46 static int debug;
  47 module_param(debug, int, 0);
  48 MODULE_PARM_DESC(debug, "Debug level (0-1)");
  49
  50 /* ----------------------------------------------------------------------- */
  51
  52 struct saa7114 {
  53         unsigned char reg[0xf0 * 2];
  54
  55         int norm;
  56         int input;
  57         int enable;
  58         int bright;
  59         int contrast;
  60         int hue;
  61         int sat;
  62         int playback;
  63 };
  64
  65 #define   I2C_DELAY   10
  66
  67
  68 //#define SAA_7114_NTSC_HSYNC_START       (-3)
  69 //#define SAA_7114_NTSC_HSYNC_STOP        (-18)
  70
  71 #define SAA_7114_NTSC_HSYNC_START  (-17)
  72 #define SAA_7114_NTSC_HSYNC_STOP   (-32)
  73
  74 //#define SAA_7114_NTSC_HOFFSET           (5)
  75 #define SAA_7114_NTSC_HOFFSET           (6)
  76 #define SAA_7114_NTSC_VOFFSET           (10)
  77 #define SAA_7114_NTSC_WIDTH             (720)
  78 #define SAA_7114_NTSC_HEIGHT            (250)
  79
  80 #define SAA_7114_SECAM_HSYNC_START      (-17)
  81 #define SAA_7114_SECAM_HSYNC_STOP       (-32)
  82
  83 #define SAA_7114_SECAM_HOFFSET          (2)
  84 #define SAA_7114_SECAM_VOFFSET          (10)
  85 #define SAA_7114_SECAM_WIDTH            (720)
  86 #define SAA_7114_SECAM_HEIGHT           (300)
  87
  88 #define SAA_7114_PAL_HSYNC_START        (-17)
  89 #define SAA_7114_PAL_HSYNC_STOP         (-32)
  90
  91 #define SAA_7114_PAL_HOFFSET            (2)
  92 #define SAA_7114_PAL_VOFFSET            (10)
  93 #define SAA_7114_PAL_WIDTH              (720)
  94 #define SAA_7114_PAL_HEIGHT             (300)
  95
  96
  97
  98 #define SAA_7114_VERTICAL_CHROMA_OFFSET         0       //0x50504040
  99 #define SAA_7114_VERTICAL_LUMA_OFFSET           0
 100
 101 #define REG_ADDR(x) (((x) << 1) + 1)
 102 #define LOBYTE(x) ((unsigned char)((x) & 0xff))
 103 #define HIBYTE(x) ((unsigned char)(((x) >> 8) & 0xff))
 104 #define LOWORD(x) ((unsigned short int)((x) & 0xffff))
 105 #define HIWORD(x) ((unsigned short int)(((x) >> 16) & 0xffff))
 106
 107
 108 /* ----------------------------------------------------------------------- */
 109
 110 static inline int saa7114_write(struct i2c_client *client, u8 reg, u8 value)
 111 {
 112         return i2c_smbus_write_byte_data(client, reg, value);
 113 }
 114
 115 static int saa7114_write_block(struct i2c_client *client, const u8 *data, unsigned int len)
 116 {
 117         int ret = -1;
 118         u8 reg;
 119
 120         /* the saa7114 has an autoincrement function, use it if
 121          * the adapter understands raw I2C */
 122         if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
 123                 /* do raw I2C, not smbus compatible */
 124                 u8 block_data[32];
 125                 int block_len;
 126
 127                 while (len >= 2) {
 128                         block_len = 0;
 129                         block_data[block_len++] = reg = data[0];
 130                         do {
 131                                 block_data[block_len++] = data[1];
 132                                 reg++;
 133                                 len -= 2;
 134                                 data += 2;
 135                         } while (len >= 2 && data[0] == reg && block_len < 32);
 136                         ret = i2c_master_send(client, block_data, block_len);
 137                         if (ret < 0)
 138                                 break;
 139                 }
 140         } else {
 141                 /* do some slow I2C emulation kind of thing */
 142                 while (len >= 2) {
 143                         reg = *data++;
 144                         ret = saa7114_write(client, reg, *data++);
 145                         if (ret < 0)
 146                                 break;
 147                         len -= 2;
 148                 }
 149         }
 150
 151         return ret;
 152 }
 153
 154 static inline int saa7114_read(struct i2c_client *client, u8 reg)
 155 {
 156         return i2c_smbus_read_byte_data(client, reg);
 157 }
 158
 159 /* ----------------------------------------------------------------------- */
 160
 161 // initially set NTSC, composite
 162
 163
 164 static const unsigned char init[] = {
 165         0x00, 0x00,             /* 00 - ID byte , chip version,
 166                                  * read only */
 167         0x01, 0x08,             /* 01 - X,X,X,X, IDEL3 to IDEL0 -
 168                                  * horizontal increment delay,
 169                                  * recommended position */
 170         0x02, 0x00,             /* 02 - FUSE=3, GUDL=2, MODE=0 ;
 171                                  * input control */
 172         0x03, 0x10,             /* 03 - HLNRS=0, VBSL=1, WPOFF=0,
 173                                  * HOLDG=0, GAFIX=0, GAI1=256, GAI2=256 */
 174         0x04, 0x90,             /* 04 - GAI1=256 */
 175         0x05, 0x90,             /* 05 - GAI2=256 */
 176         0x06, SAA_7114_NTSC_HSYNC_START,        /* 06 - HSB: hsync start,
 177                                  * depends on the video standard */
 178         0x07, SAA_7114_NTSC_HSYNC_STOP, /* 07 - HSS: hsync stop, depends
 179                                  *on the video standard */
 180         0x08, 0xb8,             /* 08 - AUFD=1, FSEL=1, EXFIL=0, VTRC=1,
 181                                  * HPLL: free running in playback, locked
 182                                  * in capture, VNOI=0 */
 183         0x09, 0x80,             /* 09 - BYPS=0, PREF=0, BPSS=0, VBLB=0,
 184                                  * UPTCV=0, APER=1; depends from input */
 185         0x0a, 0x80,             /* 0a - BRIG=128 */
 186         0x0b, 0x44,             /* 0b - CONT=1.109 */
 187         0x0c, 0x40,             /* 0c - SATN=1.0 */
 188         0x0d, 0x00,             /* 0d - HUE=0 */
 189         0x0e, 0x84,             /* 0e - CDTO, CSTD2 to 0, DCVF, FCTC,
 190                                  * CCOMB; depends from video standard */
 191         0x0f, 0x24,             /* 0f - ACGC,CGAIN6 to CGAIN0; depends
 192                                  * from video standard */
 193         0x10, 0x03,             /* 10 - OFFU1 to 0, OFFV1 to 0, CHBW,
 194                                  * LCBW2 to 0 */
 195         0x11, 0x59,             /* 11 - COLO, RTP1, HEDL1 to 0, RTP0,
 196                                  * YDEL2 to 0 */
 197         0x12, 0xc9,             /* 12 - RT signal control RTSE13 to 10
 198                                  * and 03 to 00 */
 199         0x13, 0x80,             /* 13 - RT/X port output control  */
 200         0x14, 0x00,             /* 14 - analog, ADC, compatibility control */
 201         0x15, 0x00,             /* 15 - VGATE start FID change  */
 202         0x16, 0xfe,             /* 16 - VGATE stop */
 203         0x17, 0x00,             /* 17 - Misc., VGATE MSBs */
 204         0x18, 0x40,             /* RAWG */
 205         0x19, 0x80,             /* RAWO */
 206         0x1a, 0x00,
 207         0x1b, 0x00,
 208         0x1c, 0x00,
 209         0x1d, 0x00,
 210         0x1e, 0x00,
 211         0x1f, 0x00,             /* status byte, read only */
 212         0x20, 0x00,             /* video decoder reserved part */
 213         0x21, 0x00,
 214         0x22, 0x00,
 215         0x23, 0x00,
 216         0x24, 0x00,
 217         0x25, 0x00,
 218         0x26, 0x00,
 219         0x27, 0x00,
 220         0x28, 0x00,
 221         0x29, 0x00,
 222         0x2a, 0x00,
 223         0x2b, 0x00,
 224         0x2c, 0x00,
 225         0x2d, 0x00,
 226         0x2e, 0x00,
 227         0x2f, 0x00,
 228         0x30, 0xbc,             /* audio clock generator */
 229         0x31, 0xdf,
 230         0x32, 0x02,
 231         0x33, 0x00,
 232         0x34, 0xcd,
 233         0x35, 0xcc,
 234         0x36, 0x3a,
 235         0x37, 0x00,
 236         0x38, 0x03,
 237         0x39, 0x10,
 238         0x3a, 0x00,
 239         0x3b, 0x00,
 240         0x3c, 0x00,
 241         0x3d, 0x00,
 242         0x3e, 0x00,
 243         0x3f, 0x00,
 244         0x40, 0x00,             /* VBI data slicer */
 245         0x41, 0xff,
 246         0x42, 0xff,
 247         0x43, 0xff,
 248         0x44, 0xff,
 249         0x45, 0xff,
 250         0x46, 0xff,
 251         0x47, 0xff,
 252         0x48, 0xff,
 253         0x49, 0xff,
 254         0x4a, 0xff,
 255         0x4b, 0xff,
 256         0x4c, 0xff,
 257         0x4d, 0xff,
 258         0x4e, 0xff,
 259         0x4f, 0xff,
 260         0x50, 0xff,
 261         0x51, 0xff,
 262         0x52, 0xff,
 263         0x53, 0xff,
 264         0x54, 0xff,
 265         0x55, 0xff,
 266         0x56, 0xff,
 267         0x57, 0xff,
 268         0x58, 0x40,             // framing code
 269         0x59, 0x47,             // horizontal offset
 270         0x5a, 0x06,             // vertical offset
 271         0x5b, 0x83,             // field offset
 272         0x5c, 0x00,             // reserved
 273         0x5d, 0x3e,             // header and data
 274         0x5e, 0x00,             // sliced data
 275         0x5f, 0x00,             // reserved
 276         0x60, 0x00,             /* video decoder reserved part */
 277         0x61, 0x00,
 278         0x62, 0x00,
 279         0x63, 0x00,
 280         0x64, 0x00,
 281         0x65, 0x00,
 282         0x66, 0x00,
 283         0x67, 0x00,
 284         0x68, 0x00,
 285         0x69, 0x00,
 286         0x6a, 0x00,
 287         0x6b, 0x00,
 288         0x6c, 0x00,
 289         0x6d, 0x00,
 290         0x6e, 0x00,
 291         0x6f, 0x00,
 292         0x70, 0x00,             /* video decoder reserved part */
 293         0x71, 0x00,
 294         0x72, 0x00,
 295         0x73, 0x00,
 296         0x74, 0x00,
 297         0x75, 0x00,
 298         0x76, 0x00,
 299         0x77, 0x00,
 300         0x78, 0x00,
 301         0x79, 0x00,
 302         0x7a, 0x00,
 303         0x7b, 0x00,
 304         0x7c, 0x00,
 305         0x7d, 0x00,
 306         0x7e, 0x00,
 307         0x7f, 0x00,
 308         0x80, 0x00,             /* X-port, I-port and scaler */
 309         0x81, 0x00,
 310         0x82, 0x00,
 311         0x83, 0x00,
 312         0x84, 0xc5,
 313         0x85, 0x0d,             // hsync and vsync ?
 314         0x86, 0x40,
 315         0x87, 0x01,
 316         0x88, 0x00,
 317         0x89, 0x00,
 318         0x8a, 0x00,
 319         0x8b, 0x00,
 320         0x8c, 0x00,
 321         0x8d, 0x00,
 322         0x8e, 0x00,
 323         0x8f, 0x00,
 324         0x90, 0x03,             /* Task A definition           */
 325         0x91, 0x08,
 326         0x92, 0x00,
 327         0x93, 0x40,
 328         0x94, 0x00,             // window settings
 329         0x95, 0x00,
 330         0x96, 0x00,
 331         0x97, 0x00,
 332         0x98, 0x00,
 333         0x99, 0x00,
 334         0x9a, 0x00,
 335         0x9b, 0x00,
 336         0x9c, 0x00,
 337         0x9d, 0x00,
 338         0x9e, 0x00,
 339         0x9f, 0x00,
 340         0xa0, 0x01,             /* horizontal integer prescaling ratio */
 341         0xa1, 0x00,             /* horizontal prescaler accumulation
 342                                  * sequence length */
 343         0xa2, 0x00,             /* UV FIR filter, Y FIR filter, prescaler
 344                                  * DC gain */
 345         0xa3, 0x00,
 346         0xa4, 0x80,             // luminance brightness
 347         0xa5, 0x40,             // luminance gain
 348         0xa6, 0x40,             // chrominance saturation
 349         0xa7, 0x00,
 350         0xa8, 0x00,             // horizontal luminance scaling increment
 351         0xa9, 0x04,
 352         0xaa, 0x00,             // horizontal luminance phase offset
 353         0xab, 0x00,
 354         0xac, 0x00,             // horizontal chrominance scaling increment
 355         0xad, 0x02,
 356         0xae, 0x00,             // horizontal chrominance phase offset
 357         0xaf, 0x00,
 358         0xb0, 0x00,             // vertical luminance scaling increment
 359         0xb1, 0x04,
 360         0xb2, 0x00,             // vertical chrominance scaling increment
 361         0xb3, 0x04,
 362         0xb4, 0x00,
 363         0xb5, 0x00,
 364         0xb6, 0x00,
 365         0xb7, 0x00,
 366         0xb8, 0x00,
 367         0xb9, 0x00,
 368         0xba, 0x00,
 369         0xbb, 0x00,
 370         0xbc, 0x00,
 371         0xbd, 0x00,
 372         0xbe, 0x00,
 373         0xbf, 0x00,
 374         0xc0, 0x02,             // Task B definition
 375         0xc1, 0x08,
 376         0xc2, 0x00,
 377         0xc3, 0x40,
 378         0xc4, 0x00,             // window settings
 379         0xc5, 0x00,
 380         0xc6, 0x00,
 381         0xc7, 0x00,
 382         0xc8, 0x00,
 383         0xc9, 0x00,
 384         0xca, 0x00,
 385         0xcb, 0x00,
 386         0xcc, 0x00,
 387         0xcd, 0x00,
 388         0xce, 0x00,
 389         0xcf, 0x00,
 390         0xd0, 0x01,             // horizontal integer prescaling ratio
 391         0xd1, 0x00,             // horizontal prescaler accumulation sequence length
 392         0xd2, 0x00,             // UV FIR filter, Y FIR filter, prescaler DC gain
 393         0xd3, 0x00,
 394         0xd4, 0x80,             // luminance brightness
 395         0xd5, 0x40,             // luminance gain
 396         0xd6, 0x40,             // chrominance saturation
 397         0xd7, 0x00,
 398         0xd8, 0x00,             // horizontal luminance scaling increment
 399         0xd9, 0x04,
 400         0xda, 0x00,             // horizontal luminance phase offset
 401         0xdb, 0x00,
 402         0xdc, 0x00,             // horizontal chrominance scaling increment
 403         0xdd, 0x02,
 404         0xde, 0x00,             // horizontal chrominance phase offset
 405         0xdf, 0x00,
 406         0xe0, 0x00,             // vertical luminance scaling increment
 407         0xe1, 0x04,
 408         0xe2, 0x00,             // vertical chrominance scaling increment
 409         0xe3, 0x04,
 410         0xe4, 0x00,
 411         0xe5, 0x00,
 412         0xe6, 0x00,
 413         0xe7, 0x00,
 414         0xe8, 0x00,
 415         0xe9, 0x00,
 416         0xea, 0x00,
 417         0xeb, 0x00,
 418         0xec, 0x00,
 419         0xed, 0x00,
 420         0xee, 0x00,
 421         0xef, 0x00
 422 };
 423
 424 static int saa7114_command(struct i2c_client *client, unsigned cmd, void *arg)
 425 {
 426         struct saa7114 *decoder = i2c_get_clientdata(client);
 427
 428         switch (cmd) {
 429         case 0:
 430                 //dprintk(1, KERN_INFO "%s: writing init\n", I2C_NAME(client));
 431                 //saa7114_write_block(client, init, sizeof(init));
 432                 break;
 433
 434         case DECODER_DUMP:
 435         {
 436                 int i;
 437
 438                 if (!debug)
 439                         break;
 440                 v4l_info(client, "decoder dump\n");
 441
 442                 for (i = 0; i < 32; i += 16) {
 443                         int j;
 444
 445                         v4l_info(client, "%03x", i);
 446                         for (j = 0; j < 16; ++j) {
 447                                 printk(KERN_CONT " %02x",
 448                                        saa7114_read(client, i + j));
 449                         }
 450                         printk(KERN_CONT "\n");
 451                 }
 452                 break;
 453         }
 454
 455         case DECODER_GET_CAPABILITIES:
 456         {
 457                 struct video_decoder_capability *cap = arg;
 458
 459                 v4l_dbg(1, debug, client, "get capabilities\n");
 460
 461                 cap->flags = VIDEO_DECODER_PAL |
 462                              VIDEO_DECODER_NTSC |
 463                              VIDEO_DECODER_AUTO |
 464                              VIDEO_DECODER_CCIR;
 465                 cap->inputs = 8;
 466                 cap->outputs = 1;
 467                 break;
 468         }
 469
 470         case DECODER_GET_STATUS:
 471         {
 472                 int *iarg = arg;
 473                 int status;
 474                 int res;
 475
 476                 status = saa7114_read(client, 0x1f);
 477
 478                 v4l_dbg(1, debug, client, "status: 0x%02x\n", status);
 479                 res = 0;
 480                 if ((status & (1 << 6)) == 0) {
 481                         res |= DECODER_STATUS_GOOD;
 482                 }
 483                 switch (decoder->norm) {
 484                 case VIDEO_MODE_NTSC:
 485                         res |= DECODER_STATUS_NTSC;
 486                         break;
 487                 case VIDEO_MODE_PAL:
 488                         res |= DECODER_STATUS_PAL;
 489                         break;
 490                 case VIDEO_MODE_SECAM:
 491                         res |= DECODER_STATUS_SECAM;
 492                         break;
 493                 default:
 494                 case VIDEO_MODE_AUTO:
 495                         if ((status & (1 << 5)) != 0) {
 496                                 res |= DECODER_STATUS_NTSC;
 497                         } else {
 498                                 res |= DECODER_STATUS_PAL;
 499                         }
 500                         break;
 501                 }
 502                 if ((status & (1 << 0)) != 0) {
 503                         res |= DECODER_STATUS_COLOR;
 504                 }
 505                 *iarg = res;
 506                 break;
 507         }
 508
 509         case DECODER_SET_NORM:
 510         {
 511                 int *iarg = arg;
 512
 513                 short int hoff = 0, voff = 0, w = 0, h = 0;
 514
 515                 v4l_dbg(1, debug, client, "set norm\n");
 516
 517                 switch (*iarg) {
 518                 case VIDEO_MODE_NTSC:
 519                         v4l_dbg(1, debug, client, "NTSC\n");
 520                         decoder->reg[REG_ADDR(0x06)] =
 521                             SAA_7114_NTSC_HSYNC_START;
 522                         decoder->reg[REG_ADDR(0x07)] =
 523                             SAA_7114_NTSC_HSYNC_STOP;
 524
 525                         decoder->reg[REG_ADDR(0x08)] = decoder->playback ? 0x7c : 0xb8; // PLL free when playback, PLL close when capture
 526
 527                         decoder->reg[REG_ADDR(0x0e)] = 0x85;
 528                         decoder->reg[REG_ADDR(0x0f)] = 0x24;
 529
 530                         hoff = SAA_7114_NTSC_HOFFSET;
 531                         voff = SAA_7114_NTSC_VOFFSET;
 532                         w = SAA_7114_NTSC_WIDTH;
 533                         h = SAA_7114_NTSC_HEIGHT;
 534
 535                         break;
 536
 537                 case VIDEO_MODE_PAL:
 538                         v4l_dbg(1, debug, client, "PAL\n");
 539                         decoder->reg[REG_ADDR(0x06)] =
 540                             SAA_7114_PAL_HSYNC_START;
 541                         decoder->reg[REG_ADDR(0x07)] =
 542                             SAA_7114_PAL_HSYNC_STOP;
 543
 544                         decoder->reg[REG_ADDR(0x08)] = decoder->playback ? 0x7c : 0xb8; // PLL free when playback, PLL close when capture
 545
 546                         decoder->reg[REG_ADDR(0x0e)] = 0x81;
 547                         decoder->reg[REG_ADDR(0x0f)] = 0x24;
 548
 549                         hoff = SAA_7114_PAL_HOFFSET;
 550                         voff = SAA_7114_PAL_VOFFSET;
 551                         w = SAA_7114_PAL_WIDTH;
 552                         h = SAA_7114_PAL_HEIGHT;
 553
 554                         break;
 555
 556                 default:
 557                         v4l_dbg(1, debug, client, "Unknown video mode\n");
 558                         return -EINVAL;
 559                 }
 560
 561
 562                 decoder->reg[REG_ADDR(0x94)] = LOBYTE(hoff);    // hoffset low
 563                 decoder->reg[REG_ADDR(0x95)] = HIBYTE(hoff) & 0x0f;     // hoffset high
 564                 decoder->reg[REG_ADDR(0x96)] = LOBYTE(w);       // width low
 565                 decoder->reg[REG_ADDR(0x97)] = HIBYTE(w) & 0x0f;        // width high
 566                 decoder->reg[REG_ADDR(0x98)] = LOBYTE(voff);    // voffset low
 567                 decoder->reg[REG_ADDR(0x99)] = HIBYTE(voff) & 0x0f;     // voffset high
 568                 decoder->reg[REG_ADDR(0x9a)] = LOBYTE(h + 2);   // height low
 569                 decoder->reg[REG_ADDR(0x9b)] = HIBYTE(h + 2) & 0x0f;    // height high
 570                 decoder->reg[REG_ADDR(0x9c)] = LOBYTE(w);       // out width low
 571                 decoder->reg[REG_ADDR(0x9d)] = HIBYTE(w) & 0x0f;        // out width high
 572                 decoder->reg[REG_ADDR(0x9e)] = LOBYTE(h);       // out height low
 573                 decoder->reg[REG_ADDR(0x9f)] = HIBYTE(h) & 0x0f;        // out height high
 574
 575                 decoder->reg[REG_ADDR(0xc4)] = LOBYTE(hoff);    // hoffset low
 576                 decoder->reg[REG_ADDR(0xc5)] = HIBYTE(hoff) & 0x0f;     // hoffset high
 577                 decoder->reg[REG_ADDR(0xc6)] = LOBYTE(w);       // width low
 578                 decoder->reg[REG_ADDR(0xc7)] = HIBYTE(w) & 0x0f;        // width high
 579                 decoder->reg[REG_ADDR(0xc8)] = LOBYTE(voff);    // voffset low
 580                 decoder->reg[REG_ADDR(0xc9)] = HIBYTE(voff) & 0x0f;     // voffset high
 581                 decoder->reg[REG_ADDR(0xca)] = LOBYTE(h + 2);   // height low
 582                 decoder->reg[REG_ADDR(0xcb)] = HIBYTE(h + 2) & 0x0f;    // height high
 583                 decoder->reg[REG_ADDR(0xcc)] = LOBYTE(w);       // out width low
 584                 decoder->reg[REG_ADDR(0xcd)] = HIBYTE(w) & 0x0f;        // out width high
 585                 decoder->reg[REG_ADDR(0xce)] = LOBYTE(h);       // out height low
 586                 decoder->reg[REG_ADDR(0xcf)] = HIBYTE(h) & 0x0f;        // out height high
 587
 588
 589                 saa7114_write(client, 0x80, 0x06);      // i-port and scaler back end clock selection, task A&B off
 590                 saa7114_write(client, 0x88, 0xd8);      // sw reset scaler
 591                 saa7114_write(client, 0x88, 0xf8);      // sw reset scaler release
 592
 593                 saa7114_write_block(client, decoder->reg + (0x06 << 1),
 594                                     3 << 1);
 595                 saa7114_write_block(client, decoder->reg + (0x0e << 1),
 596                                     2 << 1);
 597                 saa7114_write_block(client, decoder->reg + (0x5a << 1),
 598                                     2 << 1);
 599
 600                 saa7114_write_block(client, decoder->reg + (0x94 << 1),
 601                                     (0x9f + 1 - 0x94) << 1);
 602                 saa7114_write_block(client, decoder->reg + (0xc4 << 1),
 603                                     (0xcf + 1 - 0xc4) << 1);
 604
 605                 saa7114_write(client, 0x88, 0xd8);      // sw reset scaler
 606                 saa7114_write(client, 0x88, 0xf8);      // sw reset scaler release
 607                 saa7114_write(client, 0x80, 0x36);      // i-port and scaler back end clock selection
 608
 609                 decoder->norm = *iarg;
 610                 break;
 611         }
 612
 613         case DECODER_SET_INPUT:
 614         {
 615                 int *iarg = arg;
 616
 617                 v4l_dbg(1, debug, client, "set input (%d)\n", *iarg);
 618                 if (*iarg < 0 || *iarg > 7) {
 619                         return -EINVAL;
 620                 }
 621
 622                 if (decoder->input != *iarg) {
 623                         v4l_dbg(1, debug, client, "now setting %s input\n",
 624                                 *iarg >= 6 ? "S-Video" : "Composite");
 625                         decoder->input = *iarg;
 626
 627                         /* select mode */
 628                         decoder->reg[REG_ADDR(0x02)] =
 629                             (decoder->
 630                              reg[REG_ADDR(0x02)] & 0xf0) | (decoder->
 631                                                             input <
 632                                                             6 ? 0x0 : 0x9);
 633                         saa7114_write(client, 0x02,
 634                                       decoder->reg[REG_ADDR(0x02)]);
 635
 636                         /* bypass chrominance trap for modes 6..9 */
 637                         decoder->reg[REG_ADDR(0x09)] =
 638                             (decoder->
 639                              reg[REG_ADDR(0x09)] & 0x7f) | (decoder->
 640                                                             input <
 641                                                             6 ? 0x0 :
 642                                                             0x80);
 643                         saa7114_write(client, 0x09,
 644                                       decoder->reg[REG_ADDR(0x09)]);
 645
 646                         decoder->reg[REG_ADDR(0x0e)] =
 647                             decoder->input <
 648                             6 ? decoder->
 649                             reg[REG_ADDR(0x0e)] | 1 : decoder->
 650                             reg[REG_ADDR(0x0e)] & ~1;
 651                         saa7114_write(client, 0x0e,
 652                                       decoder->reg[REG_ADDR(0x0e)]);
 653                 }
 654                 break;
 655         }
 656
 657         case DECODER_SET_OUTPUT:
 658         {
 659                 int *iarg = arg;
 660
 661                 v4l_dbg(1, debug, client, "set output\n");
 662
 663                 /* not much choice of outputs */
 664                 if (*iarg != 0) {
 665                         return -EINVAL;
 666                 }
 667                 break;
 668         }
 669
 670         case DECODER_ENABLE_OUTPUT:
 671         {
 672                 int *iarg = arg;
 673                 int enable = (*iarg != 0);
 674
 675                 v4l_dbg(1, debug, client, "%s output\n",
 676                         enable ? "enable" : "disable");
 677
 678                 decoder->playback = !enable;
 679
 680                 if (decoder->enable != enable) {
 681                         decoder->enable = enable;
 682
 683                         /* RJ: If output should be disabled (for
 684                          * playing videos), we also need a open PLL.
 685                          * The input is set to 0 (where no input
 686                          * source is connected), although this
 687                          * is not necessary.
 688                          *
 689                          * If output should be enabled, we have to
 690                          * reverse the above.
 691                          */
 692
 693                         if (decoder->enable) {
 694                                 decoder->reg[REG_ADDR(0x08)] = 0xb8;
 695                                 decoder->reg[REG_ADDR(0x12)] = 0xc9;
 696                                 decoder->reg[REG_ADDR(0x13)] = 0x80;
 697                                 decoder->reg[REG_ADDR(0x87)] = 0x01;
 698                         } else {
 699                                 decoder->reg[REG_ADDR(0x08)] = 0x7c;
 700                                 decoder->reg[REG_ADDR(0x12)] = 0x00;
 701                                 decoder->reg[REG_ADDR(0x13)] = 0x00;
 702                                 decoder->reg[REG_ADDR(0x87)] = 0x00;
 703                         }
 704
 705                         saa7114_write_block(client,
 706                                             decoder->reg + (0x12 << 1),
 707                                             2 << 1);
 708                         saa7114_write(client, 0x08,
 709                                       decoder->reg[REG_ADDR(0x08)]);
 710                         saa7114_write(client, 0x87,
 711                                       decoder->reg[REG_ADDR(0x87)]);
 712                         saa7114_write(client, 0x88, 0xd8);      // sw reset scaler
 713                         saa7114_write(client, 0x88, 0xf8);      // sw reset scaler release
 714                         saa7114_write(client, 0x80, 0x36);
 715
 716                 }
 717                 break;
 718         }
 719
 720         case DECODER_SET_PICTURE:
 721         {
 722                 struct video_picture *pic = arg;
 723
 724                 v4l_dbg(1, debug, client,
 725                         "decoder set picture bright=%d contrast=%d saturation=%d hue=%d\n",
 726                         pic->brightness, pic->contrast, pic->colour, pic->hue);
 727
 728                 if (decoder->bright != pic->brightness) {
 729                         /* We want 0 to 255 we get 0-65535 */
 730                         decoder->bright = pic->brightness;
 731                         saa7114_write(client, 0x0a, decoder->bright >> 8);
 732                 }
 733                 if (decoder->contrast != pic->contrast) {
 734                         /* We want 0 to 127 we get 0-65535 */
 735                         decoder->contrast = pic->contrast;
 736                         saa7114_write(client, 0x0b,
 737                                       decoder->contrast >> 9);
 738                 }
 739                 if (decoder->sat != pic->colour) {
 740                         /* We want 0 to 127 we get 0-65535 */
 741                         decoder->sat = pic->colour;
 742                         saa7114_write(client, 0x0c, decoder->sat >> 9);
 743                 }
 744                 if (decoder->hue != pic->hue) {
 745                         /* We want -128 to 127 we get 0-65535 */
 746                         decoder->hue = pic->hue;
 747                         saa7114_write(client, 0x0d,
 748                                       (decoder->hue - 32768) >> 8);
 749                 }
 750                 break;
 751         }
 752
 753         default:
 754                 return -EINVAL;
 755         }
 756
 757         return 0;
 758 }
 759
 760 /* ----------------------------------------------------------------------- */
 761
 762 static unsigned short normal_i2c[] = { 0x42 >> 1, 0x40 >> 1, I2C_CLIENT_END };
 763
 764 I2C_CLIENT_INSMOD;
 765
 766 static int saa7114_probe(struct i2c_client *client,
 767                         const struct i2c_device_id *id)
 768 {
 769         int i, err[30];
 770         short int hoff = SAA_7114_NTSC_HOFFSET;
 771         short int voff = SAA_7114_NTSC_VOFFSET;
 772         short int w = SAA_7114_NTSC_WIDTH;
 773         short int h = SAA_7114_NTSC_HEIGHT;
 774         struct saa7114 *decoder;
 775
 776         /* Check if the adapter supports the needed features */
 777         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 778                 return -ENODEV;
 779
 780         v4l_info(client, "chip found @ 0x%x (%s)\n",
 781                         client->addr << 1, client->adapter->name);
 782
 783         decoder = kzalloc(sizeof(struct saa7114), GFP_KERNEL);
 784         if (decoder == NULL)
 785                 return -ENOMEM;
 786         decoder->norm = VIDEO_MODE_NTSC;
 787         decoder->input = -1;
 788         decoder->enable = 1;
 789         decoder->bright = 32768;
 790         decoder->contrast = 32768;
 791         decoder->hue = 32768;
 792         decoder->sat = 32768;
 793         decoder->playback = 0;  // initially capture mode useda
 794         i2c_set_clientdata(client, decoder);
 795
 796         memcpy(decoder->reg, init, sizeof(init));
 797
 798         decoder->reg[REG_ADDR(0x94)] = LOBYTE(hoff);    // hoffset low
 799         decoder->reg[REG_ADDR(0x95)] = HIBYTE(hoff) & 0x0f;     // hoffset high
 800         decoder->reg[REG_ADDR(0x96)] = LOBYTE(w);       // width low
 801         decoder->reg[REG_ADDR(0x97)] = HIBYTE(w) & 0x0f;        // width high
 802         decoder->reg[REG_ADDR(0x98)] = LOBYTE(voff);    // voffset low
 803         decoder->reg[REG_ADDR(0x99)] = HIBYTE(voff) & 0x0f;     // voffset high
 804         decoder->reg[REG_ADDR(0x9a)] = LOBYTE(h + 2);   // height low
 805         decoder->reg[REG_ADDR(0x9b)] = HIBYTE(h + 2) & 0x0f;    // height high
 806         decoder->reg[REG_ADDR(0x9c)] = LOBYTE(w);       // out width low
 807         decoder->reg[REG_ADDR(0x9d)] = HIBYTE(w) & 0x0f;        // out width high
 808         decoder->reg[REG_ADDR(0x9e)] = LOBYTE(h);       // out height low
 809         decoder->reg[REG_ADDR(0x9f)] = HIBYTE(h) & 0x0f;        // out height high
 810
 811         decoder->reg[REG_ADDR(0xc4)] = LOBYTE(hoff);    // hoffset low
 812         decoder->reg[REG_ADDR(0xc5)] = HIBYTE(hoff) & 0x0f;     // hoffset high
 813         decoder->reg[REG_ADDR(0xc6)] = LOBYTE(w);       // width low
 814         decoder->reg[REG_ADDR(0xc7)] = HIBYTE(w) & 0x0f;        // width high
 815         decoder->reg[REG_ADDR(0xc8)] = LOBYTE(voff);    // voffset low
 816         decoder->reg[REG_ADDR(0xc9)] = HIBYTE(voff) & 0x0f;     // voffset high
 817         decoder->reg[REG_ADDR(0xca)] = LOBYTE(h + 2);   // height low
 818         decoder->reg[REG_ADDR(0xcb)] = HIBYTE(h + 2) & 0x0f;    // height high
 819         decoder->reg[REG_ADDR(0xcc)] = LOBYTE(w);       // out width low
 820         decoder->reg[REG_ADDR(0xcd)] = HIBYTE(w) & 0x0f;        // out width high
 821         decoder->reg[REG_ADDR(0xce)] = LOBYTE(h);       // out height low
 822         decoder->reg[REG_ADDR(0xcf)] = HIBYTE(h) & 0x0f;        // out height high
 823
 824         decoder->reg[REG_ADDR(0xb8)] =
 825             LOBYTE(LOWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
 826         decoder->reg[REG_ADDR(0xb9)] =
 827             HIBYTE(LOWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
 828         decoder->reg[REG_ADDR(0xba)] =
 829             LOBYTE(HIWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
 830         decoder->reg[REG_ADDR(0xbb)] =
 831             HIBYTE(HIWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
 832
 833         decoder->reg[REG_ADDR(0xbc)] =
 834             LOBYTE(LOWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
 835         decoder->reg[REG_ADDR(0xbd)] =
 836             HIBYTE(LOWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
 837         decoder->reg[REG_ADDR(0xbe)] =
 838             LOBYTE(HIWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
 839         decoder->reg[REG_ADDR(0xbf)] =
 840             HIBYTE(HIWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
 841
 842         decoder->reg[REG_ADDR(0xe8)] =
 843             LOBYTE(LOWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
 844         decoder->reg[REG_ADDR(0xe9)] =
 845             HIBYTE(LOWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
 846         decoder->reg[REG_ADDR(0xea)] =
 847             LOBYTE(HIWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
 848         decoder->reg[REG_ADDR(0xeb)] =
 849             HIBYTE(HIWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
 850
 851         decoder->reg[REG_ADDR(0xec)] =
 852             LOBYTE(LOWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
 853         decoder->reg[REG_ADDR(0xed)] =
 854             HIBYTE(LOWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
 855         decoder->reg[REG_ADDR(0xee)] =
 856             LOBYTE(HIWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
 857         decoder->reg[REG_ADDR(0xef)] =
 858             HIBYTE(HIWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
 859
 860
 861         decoder->reg[REG_ADDR(0x13)] = 0x80;    // RTC0 on
 862         decoder->reg[REG_ADDR(0x87)] = 0x01;    // I-Port
 863         decoder->reg[REG_ADDR(0x12)] = 0xc9;    // RTS0
 864
 865         decoder->reg[REG_ADDR(0x02)] = 0xc0;    // set composite1 input, aveasy
 866         decoder->reg[REG_ADDR(0x09)] = 0x00;    // chrominance trap
 867         decoder->reg[REG_ADDR(0x0e)] |= 1;      // combfilter on
 868
 869
 870         v4l_dbg(1, debug, client, "starting init\n");
 871
 872         err[0] =
 873             saa7114_write_block(client, decoder->reg + (0x20 << 1),
 874                                 0x10 << 1);
 875         err[1] =
 876             saa7114_write_block(client, decoder->reg + (0x30 << 1),
 877                                 0x10 << 1);
 878         err[2] =
 879             saa7114_write_block(client, decoder->reg + (0x63 << 1),
 880                                 (0x7f + 1 - 0x63) << 1);
 881         err[3] =
 882             saa7114_write_block(client, decoder->reg + (0x89 << 1),
 883                                 6 << 1);
 884         err[4] =
 885             saa7114_write_block(client, decoder->reg + (0xb8 << 1),
 886                                 8 << 1);
 887         err[5] =
 888             saa7114_write_block(client, decoder->reg + (0xe8 << 1),
 889                                 8 << 1);
 890
 891
 892         for (i = 0; i <= 5; i++) {
 893                 if (err[i] < 0) {
 894                         v4l_dbg(1, debug, client,
 895                                 "init error %d at stage %d, leaving attach.\n",
 896                                 i, err[i]);
 897                         kfree(decoder);
 898                         return -EIO;
 899                 }
 900         }
 901
 902         for (i = 6; i < 8; i++) {
 903                 v4l_dbg(1, debug, client,
 904                         "reg[0x%02x] = 0x%02x (0x%02x)\n",
 905                         i, saa7114_read(client, i),
 906                         decoder->reg[REG_ADDR(i)]);
 907         }
 908
 909         v4l_dbg(1, debug, client,
 910                 "performing decoder reset sequence\n");
 911
 912         err[6] = saa7114_write(client, 0x80, 0x06);     // i-port and scaler backend clock selection, task A&B off
 913         err[7] = saa7114_write(client, 0x88, 0xd8);     // sw reset scaler
 914         err[8] = saa7114_write(client, 0x88, 0xf8);     // sw reset scaler release
 915
 916         for (i = 6; i <= 8; i++) {
 917                 if (err[i] < 0) {
 918                         v4l_dbg(1, debug, client,
 919                                 "init error %d at stage %d, leaving attach.\n",
 920                                 i, err[i]);
 921                         kfree(decoder);
 922                         return -EIO;
 923                 }
 924         }
 925
 926         v4l_dbg(1, debug, client, "performing the rest of init\n");
 927
 928         err[9] = saa7114_write(client, 0x01, decoder->reg[REG_ADDR(0x01)]);
 929         err[10] = saa7114_write_block(client, decoder->reg + (0x03 << 1), (0x1e + 1 - 0x03) << 1);      // big seq
 930         err[11] = saa7114_write_block(client, decoder->reg + (0x40 << 1), (0x5f + 1 - 0x40) << 1);      // slicer
 931         err[12] = saa7114_write_block(client, decoder->reg + (0x81 << 1), 2 << 1);      // ?
 932         err[13] = saa7114_write_block(client, decoder->reg + (0x83 << 1), 5 << 1);      // ?
 933         err[14] = saa7114_write_block(client, decoder->reg + (0x90 << 1), 4 << 1);      // Task A
 934         err[15] =
 935             saa7114_write_block(client, decoder->reg + (0x94 << 1),
 936                                 12 << 1);
 937         err[16] =
 938             saa7114_write_block(client, decoder->reg + (0xa0 << 1),
 939                                 8 << 1);
 940         err[17] =
 941             saa7114_write_block(client, decoder->reg + (0xa8 << 1),
 942                                 8 << 1);
 943         err[18] =
 944             saa7114_write_block(client, decoder->reg + (0xb0 << 1),
 945                                 8 << 1);
 946         err[19] = saa7114_write_block(client, decoder->reg + (0xc0 << 1), 4 << 1);      // Task B
 947         err[15] =
 948             saa7114_write_block(client, decoder->reg + (0xc4 << 1),
 949                                 12 << 1);
 950         err[16] =
 951             saa7114_write_block(client, decoder->reg + (0xd0 << 1),
 952                                 8 << 1);
 953         err[17] =
 954             saa7114_write_block(client, decoder->reg + (0xd8 << 1),
 955                                 8 << 1);
 956         err[18] =
 957             saa7114_write_block(client, decoder->reg + (0xe0 << 1),
 958                                 8 << 1);
 959
 960         for (i = 9; i <= 18; i++) {
 961                 if (err[i] < 0) {
 962                         v4l_dbg(1, debug, client,
 963                                 "init error %d at stage %d, leaving attach.\n",
 964                                 i, err[i]);
 965                         kfree(decoder);
 966                         return -EIO;
 967                 }
 968         }
 969
 970
 971         for (i = 6; i < 8; i++) {
 972                 v4l_dbg(1, debug, client,
 973                         "reg[0x%02x] = 0x%02x (0x%02x)\n",
 974                         i, saa7114_read(client, i),
 975                         decoder->reg[REG_ADDR(i)]);
 976         }
 977
 978
 979         for (i = 0x11; i <= 0x13; i++) {
 980                 v4l_dbg(1, debug, client,
 981                         "reg[0x%02x] = 0x%02x (0x%02x)\n",
 982                         i, saa7114_read(client, i),
 983                         decoder->reg[REG_ADDR(i)]);
 984         }
 985
 986
 987         v4l_dbg(1, debug, client, "setting video input\n");
 988
 989         err[19] =
 990             saa7114_write(client, 0x02, decoder->reg[REG_ADDR(0x02)]);
 991         err[20] =
 992             saa7114_write(client, 0x09, decoder->reg[REG_ADDR(0x09)]);
 993         err[21] =
 994             saa7114_write(client, 0x0e, decoder->reg[REG_ADDR(0x0e)]);
 995
 996         for (i = 19; i <= 21; i++) {
 997                 if (err[i] < 0) {
 998                         v4l_dbg(1, debug, client,
 999                                 "init error %d at stage %d, leaving attach.\n",
1000                                 i, err[i]);
1001                         kfree(decoder);
1002                         return -EIO;
1003                 }
1004         }
1005
1006         v4l_dbg(1, debug, client, "performing decoder reset sequence\n");
1007
1008         err[22] = saa7114_write(client, 0x88, 0xd8);    // sw reset scaler
1009         err[23] = saa7114_write(client, 0x88, 0xf8);    // sw reset scaler release
1010         err[24] = saa7114_write(client, 0x80, 0x36);    // i-port and scaler backend clock selection, task A&B off
1011
1012
1013         for (i = 22; i <= 24; i++) {
1014                 if (err[i] < 0) {
1015                         v4l_dbg(1, debug, client,
1016                                 "init error %d at stage %d, leaving attach.\n",
1017                                 i, err[i]);
1018                         kfree(decoder);
1019                         return -EIO;
1020                 }
1021         }
1022
1023         err[25] = saa7114_write(client, 0x06, init[REG_ADDR(0x06)]);
1024         err[26] = saa7114_write(client, 0x07, init[REG_ADDR(0x07)]);
1025         err[27] = saa7114_write(client, 0x10, init[REG_ADDR(0x10)]);
1026
1027         v4l_dbg(1, debug, client, "chip version %x, decoder status 0x%02x\n",
1028                 saa7114_read(client, 0x00) >> 4,
1029                 saa7114_read(client, 0x1f));
1030         v4l_dbg(1, debug, client,
1031                 "power save control: 0x%02x, scaler status: 0x%02x\n",
1032                 saa7114_read(client, 0x88),
1033                 saa7114_read(client, 0x8f));
1034
1035
1036         for (i = 0x94; i < 0x96; i++) {
1037                 v4l_dbg(1, debug, client,
1038                         "reg[0x%02x] = 0x%02x (0x%02x)\n",
1039                         i, saa7114_read(client, i),
1040                         decoder->reg[REG_ADDR(i)]);
1041         }
1042
1043         //i = saa7114_write_block(client, init, sizeof(init));
1044         return 0;
1045 }
1046
1047 static int saa7114_remove(struct i2c_client *client)
1048 {
1049         kfree(i2c_get_clientdata(client));
1050         return 0;
1051 }
1052
1053 /* ----------------------------------------------------------------------- */
1054
1055 static const struct i2c_device_id saa7114_id[] = {
1056         { "saa7114_old", 0 },   /* "saa7114" maps to the saa7115 driver */
1057         { }
1058 };
1059 MODULE_DEVICE_TABLE(i2c, saa7114_id);
1060
1061 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
1062         .name = "saa7114",
1063         .driverid = I2C_DRIVERID_SAA7114,
1064         .command = saa7114_command,
1065         .probe = saa7114_probe,
1066         .remove = saa7114_remove,
1067         .id_table = saa7114_id,
1068 };