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

   1 /*
   2  * stradis.c - stradis 4:2:2 mpeg decoder driver
   3  *
   4  * Stradis 4:2:2 MPEG-2 Decoder Driver
   5  * Copyright (C) 1999 Nathan Laredo <laredo@gnu.org>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/delay.h>
  24 #include <linux/errno.h>
  25 #include <linux/fs.h>
  26 #include <linux/kernel.h>
  27 #include <linux/major.h>
  28 #include <linux/slab.h>
  29 #include <linux/mm.h>
  30 #include <linux/init.h>
  31 #include <linux/poll.h>
  32 #include <linux/pci.h>
  33 #include <linux/signal.h>
  34 #include <asm/io.h>
  35 #include <linux/ioport.h>
  36 #include <asm/pgtable.h>
  37 #include <asm/page.h>
  38 #include <linux/sched.h>
  39 #include <asm/types.h>
  40 #include <linux/types.h>
  41 #include <linux/interrupt.h>
  42 #include <asm/uaccess.h>
  43 #include <linux/vmalloc.h>
  44 #include <linux/videodev.h>
  45 #include <media/v4l2-common.h>
  46
  47 #include "saa7146.h"
  48 #include "saa7146reg.h"
  49 #include "ibmmpeg2.h"
  50 #include "saa7121.h"
  51 #include "cs8420.h"
  52
  53 #define DEBUG(x)                /* debug driver */
  54 #undef  IDEBUG                  /* debug irq handler */
  55 #undef  MDEBUG                  /* debug memory management */
  56
  57 #define SAA7146_MAX 6
  58
  59 static struct saa7146 saa7146s[SAA7146_MAX];
  60
  61 static int saa_num = 0;         /* number of SAA7146s in use */
  62
  63 static int video_nr = -1;
  64 module_param(video_nr, int, 0);
  65 MODULE_LICENSE("GPL");
  66
  67 #define nDebNormal      0x00480000
  68 #define nDebNoInc       0x00480000
  69 #define nDebVideo       0xd0480000
  70 #define nDebAudio       0xd0400000
  71 #define nDebDMA         0x02c80000
  72
  73 #define oDebNormal      0x13c80000
  74 #define oDebNoInc       0x13c80000
  75 #define oDebVideo       0xd1080000
  76 #define oDebAudio       0xd1080000
  77 #define oDebDMA         0x03080000
  78
  79 #define NewCard         (saa->boardcfg[3])
  80 #define ChipControl     (saa->boardcfg[1])
  81 #define NTSCFirstActive (saa->boardcfg[4])
  82 #define PALFirstActive  (saa->boardcfg[5])
  83 #define NTSCLastActive  (saa->boardcfg[54])
  84 #define PALLastActive   (saa->boardcfg[55])
  85 #define Have2MB         (saa->boardcfg[18] & 0x40)
  86 #define HaveCS8420      (saa->boardcfg[18] & 0x04)
  87 #define IBMMPEGCD20     (saa->boardcfg[18] & 0x20)
  88 #define HaveCS3310      (saa->boardcfg[18] & 0x01)
  89 #define CS3310MaxLvl    ((saa->boardcfg[30] << 8) | saa->boardcfg[31])
  90 #define HaveCS4341      (saa->boardcfg[40] == 2)
  91 #define SDIType         (saa->boardcfg[27])
  92 #define CurrentMode     (saa->boardcfg[2])
  93
  94 #define debNormal       (NewCard ? nDebNormal : oDebNormal)
  95 #define debNoInc        (NewCard ? nDebNoInc : oDebNoInc)
  96 #define debVideo        (NewCard ? nDebVideo : oDebVideo)
  97 #define debAudio        (NewCard ? nDebAudio : oDebAudio)
  98 #define debDMA          (NewCard ? nDebDMA : oDebDMA)
  99
 100 #ifdef USE_RESCUE_EEPROM_SDM275
 101 static unsigned char rescue_eeprom[64] = {
 102         0x00, 0x01, 0x04, 0x13, 0x26, 0x0f, 0x10, 0x00, 0x00, 0x00, 0x43, 0x63,
 103         0x22, 0x01, 0x29, 0x15, 0x73, 0x00, 0x1f,  'd',  'e',  'c',  'x',  'l',
 104          'd',  'v',  'a', 0x02, 0x00, 0x01, 0x00, 0xcc, 0xa4, 0x63, 0x09, 0xe2,
 105         0x10, 0x00, 0x0a, 0x00, 0x02, 0x02,  'd',  'e',  'c',  'x',  'l',  'a',
 106         0x00, 0x00, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 107         0x00, 0x00, 0x00, 0x00,
 108 };
 109 #endif
 110
 111 /* ----------------------------------------------------------------------- */
 112 /* Hardware I2C functions */
 113 static void I2CWipe(struct saa7146 *saa)
 114 {
 115         int i;
 116         /* set i2c to ~=100kHz, abort transfer, clear busy */
 117         saawrite(0x600 | SAA7146_I2C_ABORT, SAA7146_I2C_STATUS);
 118         saawrite((SAA7146_MC2_UPLD_I2C << 16) |
 119                  SAA7146_MC2_UPLD_I2C, SAA7146_MC2);
 120         /* wait for i2c registers to be programmed */
 121         for (i = 0; i < 1000 &&
 122              !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++)
 123                 schedule();
 124         saawrite(0x600, SAA7146_I2C_STATUS);
 125         saawrite((SAA7146_MC2_UPLD_I2C << 16) |
 126                  SAA7146_MC2_UPLD_I2C, SAA7146_MC2);
 127         /* wait for i2c registers to be programmed */
 128         for (i = 0; i < 1000 &&
 129              !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++)
 130                 schedule();
 131         saawrite(0x600, SAA7146_I2C_STATUS);
 132         saawrite((SAA7146_MC2_UPLD_I2C << 16) |
 133                  SAA7146_MC2_UPLD_I2C, SAA7146_MC2);
 134         /* wait for i2c registers to be programmed */
 135         for (i = 0; i < 1000 &&
 136              !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++)
 137                 schedule();
 138 }
 139
 140 /* read I2C */
 141 static int I2CRead(struct saa7146 *saa, unsigned char addr,
 142                    unsigned char subaddr, int dosub)
 143 {
 144         int i;
 145
 146         if (saaread(SAA7146_I2C_STATUS) & 0x3c)
 147                 I2CWipe(saa);
 148         for (i = 0;
 149                 i < 1000 && (saaread(SAA7146_I2C_STATUS) & SAA7146_I2C_BUSY);
 150                 i++)
 151                 schedule();
 152         if (i == 1000)
 153                 I2CWipe(saa);
 154         if (dosub)
 155                 saawrite(((addr & 0xfe) << 24) | (((addr | 1) & 0xff) << 8) |
 156                         ((subaddr & 0xff) << 16) | 0xed, SAA7146_I2C_TRANSFER);
 157         else
 158                 saawrite(((addr & 0xfe) << 24) | (((addr | 1) & 0xff) << 16) |
 159                         0xf1, SAA7146_I2C_TRANSFER);
 160         saawrite((SAA7146_MC2_UPLD_I2C << 16) |
 161                  SAA7146_MC2_UPLD_I2C, SAA7146_MC2);
 162         /* wait for i2c registers to be programmed */
 163         for (i = 0; i < 1000 &&
 164              !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++)
 165                 schedule();
 166         /* wait for valid data */
 167         for (i = 0; i < 1000 &&
 168              (saaread(SAA7146_I2C_STATUS) & SAA7146_I2C_BUSY); i++)
 169                 schedule();
 170         if (saaread(SAA7146_I2C_STATUS) & SAA7146_I2C_ERR)
 171                 return -1;
 172         if (i == 1000)
 173                 printk("i2c setup read timeout\n");
 174         saawrite(0x41, SAA7146_I2C_TRANSFER);
 175         saawrite((SAA7146_MC2_UPLD_I2C << 16) |
 176                  SAA7146_MC2_UPLD_I2C, SAA7146_MC2);
 177         /* wait for i2c registers to be programmed */
 178         for (i = 0; i < 1000 &&
 179              !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++)
 180                 schedule();
 181         /* wait for valid data */
 182         for (i = 0; i < 1000 &&
 183              (saaread(SAA7146_I2C_TRANSFER) & SAA7146_I2C_BUSY); i++)
 184                 schedule();
 185         if (saaread(SAA7146_I2C_TRANSFER) & SAA7146_I2C_ERR)
 186                 return -1;
 187         if (i == 1000)
 188                 printk("i2c read timeout\n");
 189         return ((saaread(SAA7146_I2C_TRANSFER) >> 24) & 0xff);
 190 }
 191
 192 /* set both to write both bytes, reset it to write only b1 */
 193
 194 static int I2CWrite(struct saa7146 *saa, unsigned char addr, unsigned char b1,
 195                     unsigned char b2, int both)
 196 {
 197         int i;
 198         u32 data;
 199
 200         if (saaread(SAA7146_I2C_STATUS) & 0x3c)
 201                 I2CWipe(saa);
 202         for (i = 0; i < 1000 &&
 203              (saaread(SAA7146_I2C_STATUS) & SAA7146_I2C_BUSY); i++)
 204                 schedule();
 205         if (i == 1000)
 206                 I2CWipe(saa);
 207         data = ((addr & 0xfe) << 24) | ((b1 & 0xff) << 16);
 208         if (both)
 209                 data |= ((b2 & 0xff) << 8) | 0xe5;
 210         else
 211                 data |= 0xd1;
 212         saawrite(data, SAA7146_I2C_TRANSFER);
 213         saawrite((SAA7146_MC2_UPLD_I2C << 16) | SAA7146_MC2_UPLD_I2C,
 214                  SAA7146_MC2);
 215         return 0;
 216 }
 217
 218 static void attach_inform(struct saa7146 *saa, int id)
 219 {
 220         int i;
 221
 222         DEBUG(printk(KERN_DEBUG "stradis%d: i2c: device found=%02x\n", saa->nr,
 223                 id));
 224         if (id == 0xa0) {       /* we have rev2 or later board, fill in info */
 225                 for (i = 0; i < 64; i++)
 226                         saa->boardcfg[i] = I2CRead(saa, 0xa0, i, 1);
 227 #ifdef USE_RESCUE_EEPROM_SDM275
 228                 if (saa->boardcfg[0] != 0) {
 229                         printk("stradis%d: WARNING: EEPROM STORED VALUES HAVE "
 230                                 "BEEN IGNORED\n", saa->nr);
 231                         for (i = 0; i < 64; i++)
 232                                 saa->boardcfg[i] = rescue_eeprom[i];
 233                 }
 234 #endif
 235                 printk("stradis%d: config =", saa->nr);
 236                 for (i = 0; i < 51; i++) {
 237                         printk(" %02x", saa->boardcfg[i]);
 238                 }
 239                 printk("\n");
 240         }
 241 }
 242
 243 static void I2CBusScan(struct saa7146 *saa)
 244 {
 245         int i;
 246         for (i = 0; i < 0xff; i += 2)
 247                 if ((I2CRead(saa, i, 0, 0)) >= 0)
 248                         attach_inform(saa, i);
 249 }
 250
 251 static int debiwait_maxwait = 0;
 252
 253 static int wait_for_debi_done(struct saa7146 *saa)
 254 {
 255         int i;
 256
 257         /* wait for registers to be programmed */
 258         for (i = 0; i < 100000 &&
 259              !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_DEBI); i++)
 260                 saaread(SAA7146_MC2);
 261         /* wait for transfer to complete */
 262         for (i = 0; i < 500000 &&
 263              (saaread(SAA7146_PSR) & SAA7146_PSR_DEBI_S); i++)
 264                 saaread(SAA7146_MC2);
 265
 266         if (i > debiwait_maxwait)
 267                 printk("wait-for-debi-done maxwait: %d\n",
 268                         debiwait_maxwait = i);
 269
 270         if (i == 500000)
 271                 return -1;
 272
 273         return 0;
 274 }
 275
 276 static int debiwrite(struct saa7146 *saa, u32 config, int addr,
 277         u32 val, int count)
 278 {
 279         u32 cmd;
 280         if (count <= 0 || count > 32764)
 281                 return -1;
 282         if (wait_for_debi_done(saa) < 0)
 283                 return -1;
 284         saawrite(config, SAA7146_DEBI_CONFIG);
 285         if (count <= 4)         /* immediate transfer */
 286                 saawrite(val, SAA7146_DEBI_AD);
 287         else                    /* block transfer */
 288                 saawrite(virt_to_bus(saa->dmadebi), SAA7146_DEBI_AD);
 289         saawrite((cmd = (count << 17) | (addr & 0xffff)), SAA7146_DEBI_COMMAND);
 290         saawrite((SAA7146_MC2_UPLD_DEBI << 16) | SAA7146_MC2_UPLD_DEBI,
 291                  SAA7146_MC2);
 292         return 0;
 293 }
 294
 295 static u32 debiread(struct saa7146 *saa, u32 config, int addr, int count)
 296 {
 297         u32 result = 0;
 298
 299         if (count > 32764 || count <= 0)
 300                 return 0;
 301         if (wait_for_debi_done(saa) < 0)
 302                 return 0;
 303         saawrite(virt_to_bus(saa->dmadebi), SAA7146_DEBI_AD);
 304         saawrite((count << 17) | 0x10000 | (addr & 0xffff),
 305                  SAA7146_DEBI_COMMAND);
 306         saawrite(config, SAA7146_DEBI_CONFIG);
 307         saawrite((SAA7146_MC2_UPLD_DEBI << 16) | SAA7146_MC2_UPLD_DEBI,
 308                  SAA7146_MC2);
 309         if (count > 4)          /* not an immediate transfer */
 310                 return count;
 311         wait_for_debi_done(saa);
 312         result = saaread(SAA7146_DEBI_AD);
 313         if (count == 1)
 314                 result &= 0xff;
 315         if (count == 2)
 316                 result &= 0xffff;
 317         if (count == 3)
 318                 result &= 0xffffff;
 319         return result;
 320 }
 321
 322 static void do_irq_send_data(struct saa7146 *saa)
 323 {
 324         int split, audbytes, vidbytes;
 325
 326         saawrite(SAA7146_PSR_PIN1, SAA7146_IER);
 327         /* if special feature mode in effect, disable audio sending */
 328         if (saa->playmode != VID_PLAY_NORMAL)
 329                 saa->audtail = saa->audhead = 0;
 330         if (saa->audhead <= saa->audtail)
 331                 audbytes = saa->audtail - saa->audhead;
 332         else
 333                 audbytes = 65536 - (saa->audhead - saa->audtail);
 334         if (saa->vidhead <= saa->vidtail)
 335                 vidbytes = saa->vidtail - saa->vidhead;
 336         else
 337                 vidbytes = 524288 - (saa->vidhead - saa->vidtail);
 338         if (audbytes == 0 && vidbytes == 0 && saa->osdtail == saa->osdhead) {
 339                 saawrite(0, SAA7146_IER);
 340                 return;
 341         }
 342         /* if at least 1 block audio waiting and audio fifo isn't full */
 343         if (audbytes >= 2048 && (debiread(saa, debNormal, IBM_MP2_AUD_FIFO, 2)
 344                         & 0xff) < 60) {
 345                 if (saa->audhead > saa->audtail)
 346                         split = 65536 - saa->audhead;
 347                 else
 348                         split = 0;
 349                 audbytes = 2048;
 350                 if (split > 0 && split < 2048) {
 351                         memcpy(saa->dmadebi, saa->audbuf + saa->audhead, split);
 352                         saa->audhead = 0;
 353                         audbytes -= split;
 354                 } else
 355                         split = 0;
 356                 memcpy(saa->dmadebi + split, saa->audbuf + saa->audhead,
 357                         audbytes);
 358                 saa->audhead += audbytes;
 359                 saa->audhead &= 0xffff;
 360                 debiwrite(saa, debAudio, (NewCard ? IBM_MP2_AUD_FIFO :
 361                         IBM_MP2_AUD_FIFOW), 0, 2048);
 362                 wake_up_interruptible(&saa->audq);
 363                 /* if at least 1 block video waiting and video fifo isn't full */
 364         } else if (vidbytes >= 30720 && (debiread(saa, debNormal,
 365                                                   IBM_MP2_FIFO, 2)) < 16384) {
 366                 if (saa->vidhead > saa->vidtail)
 367                         split = 524288 - saa->vidhead;
 368                 else
 369                         split = 0;
 370                 vidbytes = 30720;
 371                 if (split > 0 && split < 30720) {
 372                         memcpy(saa->dmadebi, saa->vidbuf + saa->vidhead, split);
 373                         saa->vidhead = 0;
 374                         vidbytes -= split;
 375                 } else
 376                         split = 0;
 377                 memcpy(saa->dmadebi + split, saa->vidbuf + saa->vidhead,
 378                         vidbytes);
 379                 saa->vidhead += vidbytes;
 380                 saa->vidhead &= 0x7ffff;
 381                 debiwrite(saa, debVideo, (NewCard ? IBM_MP2_FIFO :
 382                                           IBM_MP2_FIFOW), 0, 30720);
 383                 wake_up_interruptible(&saa->vidq);
 384         }
 385         saawrite(SAA7146_PSR_DEBI_S | SAA7146_PSR_PIN1, SAA7146_IER);
 386 }
 387
 388 static void send_osd_data(struct saa7146 *saa)
 389 {
 390         int size = saa->osdtail - saa->osdhead;
 391         if (size > 30720)
 392                 size = 30720;
 393         /* ensure some multiple of 8 bytes is transferred */
 394         size = 8 * ((size + 8) >> 3);
 395         if (size) {
 396                 debiwrite(saa, debNormal, IBM_MP2_OSD_ADDR,
 397                           (saa->osdhead >> 3), 2);
 398                 memcpy(saa->dmadebi, &saa->osdbuf[saa->osdhead], size);
 399                 saa->osdhead += size;
 400                 /* block transfer of next 8 bytes to ~32k bytes */
 401                 debiwrite(saa, debNormal, IBM_MP2_OSD_DATA, 0, size);
 402         }
 403         if (saa->osdhead >= saa->osdtail) {
 404                 saa->osdhead = saa->osdtail = 0;
 405                 debiwrite(saa, debNormal, IBM_MP2_MASK0, 0xc00c, 2);
 406         }
 407 }
 408
 409 static irqreturn_t saa7146_irq(int irq, void *dev_id)
 410 {
 411         struct saa7146 *saa = dev_id;
 412         u32 stat, astat;
 413         int count;
 414         int handled = 0;
 415
 416         count = 0;
 417         while (1) {
 418                 /* get/clear interrupt status bits */
 419                 stat = saaread(SAA7146_ISR);
 420                 astat = stat & saaread(SAA7146_IER);
 421                 if (!astat)
 422                         break;
 423                 handled = 1;
 424                 saawrite(astat, SAA7146_ISR);
 425                 if (astat & SAA7146_PSR_DEBI_S) {
 426                         do_irq_send_data(saa);
 427                 }
 428                 if (astat & SAA7146_PSR_PIN1) {
 429                         int istat;
 430                         /* the following read will trigger DEBI_S */
 431                         istat = debiread(saa, debNormal, IBM_MP2_HOST_INT, 2);
 432                         if (istat & 1) {
 433                                 saawrite(0, SAA7146_IER);
 434                                 send_osd_data(saa);
 435                                 saawrite(SAA7146_PSR_DEBI_S |
 436                                          SAA7146_PSR_PIN1, SAA7146_IER);
 437                         }
 438                         if (istat & 0x20) {     /* Video Start */
 439                                 saa->vidinfo.frame_count++;
 440                         }
 441                         if (istat & 0x400) {    /* Picture Start */
 442                                 /* update temporal reference */
 443                         }
 444                         if (istat & 0x200) {    /* Picture Resolution Change */
 445                                 /* read new resolution */
 446                         }
 447                         if (istat & 0x100) {    /* New User Data found */
 448                                 /* read new user data */
 449                         }
 450                         if (istat & 0x1000) {   /* new GOP/SMPTE */
 451                                 /* read new SMPTE */
 452                         }
 453                         if (istat & 0x8000) {   /* Sequence Start Code */
 454                                 /* reset frame counter, load sizes */
 455                                 saa->vidinfo.frame_count = 0;
 456                                 saa->vidinfo.h_size = 704;
 457                                 saa->vidinfo.v_size = 480;
 458 #if 0
 459                                 if (saa->endmarkhead != saa->endmarktail) {
 460                                         saa->audhead =
 461                                                 saa->endmark[saa->endmarkhead];
 462                                         saa->endmarkhead++;
 463                                         if (saa->endmarkhead >= MAX_MARKS)
 464                                                 saa->endmarkhead = 0;
 465                                 }
 466 #endif
 467                         }
 468                         if (istat & 0x4000) {   /* Sequence Error Code */
 469                                 if (saa->endmarkhead != saa->endmarktail) {
 470                                         saa->audhead =
 471                                                 saa->endmark[saa->endmarkhead];
 472                                         saa->endmarkhead++;
 473                                         if (saa->endmarkhead >= MAX_MARKS)
 474                                                 saa->endmarkhead = 0;
 475                                 }
 476                         }
 477                 }
 478 #ifdef IDEBUG
 479                 if (astat & SAA7146_PSR_PPEF) {
 480                         IDEBUG(printk("stradis%d irq: PPEF\n", saa->nr));
 481                 }
 482                 if (astat & SAA7146_PSR_PABO) {
 483                         IDEBUG(printk("stradis%d irq: PABO\n", saa->nr));
 484                 }
 485                 if (astat & SAA7146_PSR_PPED) {
 486                         IDEBUG(printk("stradis%d irq: PPED\n", saa->nr));
 487                 }
 488                 if (astat & SAA7146_PSR_RPS_I1) {
 489                         IDEBUG(printk("stradis%d irq: RPS_I1\n", saa->nr));
 490                 }
 491                 if (astat & SAA7146_PSR_RPS_I0) {
 492                         IDEBUG(printk("stradis%d irq: RPS_I0\n", saa->nr));
 493                 }
 494                 if (astat & SAA7146_PSR_RPS_LATE1) {
 495                         IDEBUG(printk("stradis%d irq: RPS_LATE1\n", saa->nr));
 496                 }
 497                 if (astat & SAA7146_PSR_RPS_LATE0) {
 498                         IDEBUG(printk("stradis%d irq: RPS_LATE0\n", saa->nr));
 499                 }
 500                 if (astat & SAA7146_PSR_RPS_E1) {
 501                         IDEBUG(printk("stradis%d irq: RPS_E1\n", saa->nr));
 502                 }
 503                 if (astat & SAA7146_PSR_RPS_E0) {
 504                         IDEBUG(printk("stradis%d irq: RPS_E0\n", saa->nr));
 505                 }
 506                 if (astat & SAA7146_PSR_RPS_TO1) {
 507                         IDEBUG(printk("stradis%d irq: RPS_TO1\n", saa->nr));
 508                 }
 509                 if (astat & SAA7146_PSR_RPS_TO0) {
 510                         IDEBUG(printk("stradis%d irq: RPS_TO0\n", saa->nr));
 511                 }
 512                 if (astat & SAA7146_PSR_UPLD) {
 513                         IDEBUG(printk("stradis%d irq: UPLD\n", saa->nr));
 514                 }
 515                 if (astat & SAA7146_PSR_DEBI_E) {
 516                         IDEBUG(printk("stradis%d irq: DEBI_E\n", saa->nr));
 517                 }
 518                 if (astat & SAA7146_PSR_I2C_S) {
 519                         IDEBUG(printk("stradis%d irq: I2C_S\n", saa->nr));
 520                 }
 521                 if (astat & SAA7146_PSR_I2C_E) {
 522                         IDEBUG(printk("stradis%d irq: I2C_E\n", saa->nr));
 523                 }
 524                 if (astat & SAA7146_PSR_A2_IN) {
 525                         IDEBUG(printk("stradis%d irq: A2_IN\n", saa->nr));
 526                 }
 527                 if (astat & SAA7146_PSR_A2_OUT) {
 528                         IDEBUG(printk("stradis%d irq: A2_OUT\n", saa->nr));
 529                 }
 530                 if (astat & SAA7146_PSR_A1_IN) {
 531                         IDEBUG(printk("stradis%d irq: A1_IN\n", saa->nr));
 532                 }
 533                 if (astat & SAA7146_PSR_A1_OUT) {
 534                         IDEBUG(printk("stradis%d irq: A1_OUT\n", saa->nr));
 535                 }
 536                 if (astat & SAA7146_PSR_AFOU) {
 537                         IDEBUG(printk("stradis%d irq: AFOU\n", saa->nr));
 538                 }
 539                 if (astat & SAA7146_PSR_V_PE) {
 540                         IDEBUG(printk("stradis%d irq: V_PE\n", saa->nr));
 541                 }
 542                 if (astat & SAA7146_PSR_VFOU) {
 543                         IDEBUG(printk("stradis%d irq: VFOU\n", saa->nr));
 544                 }
 545                 if (astat & SAA7146_PSR_FIDA) {
 546                         IDEBUG(printk("stradis%d irq: FIDA\n", saa->nr));
 547                 }
 548                 if (astat & SAA7146_PSR_FIDB) {
 549                         IDEBUG(printk("stradis%d irq: FIDB\n", saa->nr));
 550                 }
 551                 if (astat & SAA7146_PSR_PIN3) {
 552                         IDEBUG(printk("stradis%d irq: PIN3\n", saa->nr));
 553                 }
 554                 if (astat & SAA7146_PSR_PIN2) {
 555                         IDEBUG(printk("stradis%d irq: PIN2\n", saa->nr));
 556                 }
 557                 if (astat & SAA7146_PSR_PIN0) {
 558                         IDEBUG(printk("stradis%d irq: PIN0\n", saa->nr));
 559                 }
 560                 if (astat & SAA7146_PSR_ECS) {
 561                         IDEBUG(printk("stradis%d irq: ECS\n", saa->nr));
 562                 }
 563                 if (astat & SAA7146_PSR_EC3S) {
 564                         IDEBUG(printk("stradis%d irq: EC3S\n", saa->nr));
 565                 }
 566                 if (astat & SAA7146_PSR_EC0S) {
 567                         IDEBUG(printk("stradis%d irq: EC0S\n", saa->nr));
 568                 }
 569 #endif
 570                 count++;
 571                 if (count > 15)
 572                         printk(KERN_WARNING "stradis%d: irq loop %d\n",
 573                                saa->nr, count);
 574                 if (count > 20) {
 575                         saawrite(0, SAA7146_IER);
 576                         printk(KERN_ERR
 577                                "stradis%d: IRQ loop cleared\n", saa->nr);
 578                 }
 579         }
 580         return IRQ_RETVAL(handled);
 581 }
 582
 583 static int ibm_send_command(struct saa7146 *saa,
 584                             int command, int data, int chain)
 585 {
 586         int i;
 587
 588         if (chain)
 589                 debiwrite(saa, debNormal, IBM_MP2_COMMAND, (command << 1)| 1,2);
 590         else
 591                 debiwrite(saa, debNormal, IBM_MP2_COMMAND, command << 1, 2);
 592         debiwrite(saa, debNormal, IBM_MP2_CMD_DATA, data, 2);
 593         debiwrite(saa, debNormal, IBM_MP2_CMD_STAT, 1, 2);
 594         for (i = 0; i < 100 &&
 595              (debiread(saa, debNormal, IBM_MP2_CMD_STAT, 2) & 1); i++)
 596                 schedule();
 597         if (i == 100)
 598                 return -1;
 599         return 0;
 600 }
 601
 602 static void cs4341_setlevel(struct saa7146 *saa, int left, int right)
 603 {
 604         I2CWrite(saa, 0x22, 0x03, left > 94 ? 94 : left, 2);
 605         I2CWrite(saa, 0x22, 0x04, right > 94 ? 94 : right, 2);
 606 }
 607
 608 static void initialize_cs4341(struct saa7146 *saa)
 609 {
 610         int i;
 611         for (i = 0; i < 200; i++) {
 612                 /* auto mute off, power on, no de-emphasis */
 613                 /* I2S data up to 24-bit 64xFs internal SCLK */
 614                 I2CWrite(saa, 0x22, 0x01, 0x11, 2);
 615                 /* ATAPI mixer settings */
 616                 I2CWrite(saa, 0x22, 0x02, 0x49, 2);
 617                 /* attenuation left 3db */
 618                 I2CWrite(saa, 0x22, 0x03, 0x00, 2);
 619                 /* attenuation right 3db */
 620                 I2CWrite(saa, 0x22, 0x04, 0x00, 2);
 621                 I2CWrite(saa, 0x22, 0x01, 0x10, 2);
 622                 if (I2CRead(saa, 0x22, 0x02, 1) == 0x49)
 623                         break;
 624                 schedule();
 625         }
 626         printk("stradis%d: CS4341 initialized (%d)\n", saa->nr, i);
 627         return;
 628 }
 629
 630 static void initialize_cs8420(struct saa7146 *saa, int pro)
 631 {
 632         int i;
 633         u8 *sequence;
 634         if (pro)
 635                 sequence = mode8420pro;
 636         else
 637                 sequence = mode8420con;
 638         for (i = 0; i < INIT8420LEN; i++)
 639                 I2CWrite(saa, 0x20, init8420[i * 2], init8420[i * 2 + 1], 2);
 640         for (i = 0; i < MODE8420LEN; i++)
 641                 I2CWrite(saa, 0x20, sequence[i * 2], sequence[i * 2 + 1], 2);
 642         printk("stradis%d: CS8420 initialized\n", saa->nr);
 643 }
 644
 645 static void initialize_saa7121(struct saa7146 *saa, int dopal)
 646 {
 647         int i, mod;
 648         u8 *sequence;
 649         if (dopal)
 650                 sequence = init7121pal;
 651         else
 652                 sequence = init7121ntsc;
 653         mod = saaread(SAA7146_PSR) & 0x08;
 654         /* initialize PAL/NTSC video encoder */
 655         for (i = 0; i < INIT7121LEN; i++) {
 656                 if (NewCard) {  /* handle new card encoder differences */
 657                         if (sequence[i * 2] == 0x3a)
 658                                 I2CWrite(saa, 0x88, 0x3a, 0x13, 2);
 659                         else if (sequence[i * 2] == 0x6b)
 660                                 I2CWrite(saa, 0x88, 0x6b, 0x20, 2);
 661                         else if (sequence[i * 2] == 0x6c)
 662                                 I2CWrite(saa, 0x88, 0x6c,
 663                                          dopal ? 0x09 : 0xf5, 2);
 664                         else if (sequence[i * 2] == 0x6d)
 665                                 I2CWrite(saa, 0x88, 0x6d,
 666                                          dopal ? 0x20 : 0x00, 2);
 667                         else if (sequence[i * 2] == 0x7a)
 668                                 I2CWrite(saa, 0x88, 0x7a,
 669                                          dopal ? (PALFirstActive - 1) :
 670                                          (NTSCFirstActive - 4), 2);
 671                         else if (sequence[i * 2] == 0x7b)
 672                                 I2CWrite(saa, 0x88, 0x7b,
 673                                          dopal ? PALLastActive :
 674                                          NTSCLastActive, 2);
 675                         else
 676                                 I2CWrite(saa, 0x88, sequence[i * 2],
 677                                          sequence[i * 2 + 1], 2);
 678                 } else {
 679                         if (sequence[i * 2] == 0x6b && mod)
 680                                 I2CWrite(saa, 0x88, 0x6b,
 681                                          (sequence[i * 2 + 1] ^ 0x09), 2);
 682                         else if (sequence[i * 2] == 0x7a)
 683                                 I2CWrite(saa, 0x88, 0x7a,
 684                                          dopal ? (PALFirstActive - 1) :
 685                                          (NTSCFirstActive - 4), 2);
 686                         else if (sequence[i * 2] == 0x7b)
 687                                 I2CWrite(saa, 0x88, 0x7b,
 688                                          dopal ? PALLastActive :
 689                                          NTSCLastActive, 2);
 690                         else
 691                                 I2CWrite(saa, 0x88, sequence[i * 2],
 692                                          sequence[i * 2 + 1], 2);
 693                 }
 694         }
 695 }
 696
 697 static void set_genlock_offset(struct saa7146 *saa, int noffset)
 698 {
 699         int nCode;
 700         int PixelsPerLine = 858;
 701         if (CurrentMode == VIDEO_MODE_PAL)
 702                 PixelsPerLine = 864;
 703         if (noffset > 500)
 704                 noffset = 500;
 705         else if (noffset < -500)
 706                 noffset = -500;
 707         nCode = noffset + 0x100;
 708         if (nCode == 1)
 709                 nCode = 0x401;
 710         else if (nCode < 1)
 711                 nCode = 0x400 + PixelsPerLine + nCode;
 712         debiwrite(saa, debNormal, XILINX_GLDELAY, nCode, 2);
 713 }
 714
 715 static void set_out_format(struct saa7146 *saa, int mode)
 716 {
 717         initialize_saa7121(saa, (mode == VIDEO_MODE_NTSC ? 0 : 1));
 718         saa->boardcfg[2] = mode;
 719         /* do not adjust analog video parameters here, use saa7121 init */
 720         /* you will affect the SDI output on the new card */
 721         if (mode == VIDEO_MODE_PAL) {   /* PAL */
 722                 debiwrite(saa, debNormal, XILINX_CTL0, 0x0808, 2);
 723                 mdelay(50);
 724                 saawrite(0x012002c0, SAA7146_NUM_LINE_BYTE1);
 725                 if (NewCard) {
 726                         debiwrite(saa, debNormal, IBM_MP2_DISP_MODE, 0xe100, 2);
 727                         mdelay(50);
 728                 }
 729                 debiwrite(saa, debNormal, IBM_MP2_DISP_MODE,
 730                           NewCard ? 0xe500 : 0x6500, 2);
 731                 debiwrite(saa, debNormal, IBM_MP2_DISP_DLY,
 732                           (1 << 8) |
 733                           (NewCard ? PALFirstActive : PALFirstActive - 6), 2);
 734         } else {                /* NTSC */
 735                 debiwrite(saa, debNormal, XILINX_CTL0, 0x0800, 2);
 736                 mdelay(50);
 737                 saawrite(0x00f002c0, SAA7146_NUM_LINE_BYTE1);
 738                 debiwrite(saa, debNormal, IBM_MP2_DISP_MODE,
 739                           NewCard ? 0xe100 : 0x6100, 2);
 740                 debiwrite(saa, debNormal, IBM_MP2_DISP_DLY,
 741                           (1 << 8) |
 742                           (NewCard ? NTSCFirstActive : NTSCFirstActive - 6), 2);
 743         }
 744 }
 745
 746 /* Intialize bitmangler to map from a byte value to the mangled word that
 747  * must be output to program the Xilinx part through the DEBI port.
 748  * Xilinx Data Bit->DEBI Bit: 0->15 1->7 2->6 3->12 4->11 5->2 6->1 7->0
 749  * transfer FPGA code, init IBM chip, transfer IBM microcode
 750  * rev2 card mangles: 0->7 1->6 2->5 3->4 4->3 5->2 6->1 7->0
 751  */
 752 static u16 bitmangler[256];
 753
 754 static int initialize_fpga(struct video_code *bitdata)
 755 {
 756         int i, num, startindex, failure = 0, loadtwo, loadfile = 0;
 757         u16 *dmabuf;
 758         u8 *newdma;
 759         struct saa7146 *saa;
 760
 761         /* verify fpga code */
 762         for (startindex = 0; startindex < bitdata->datasize; startindex++)
 763                 if (bitdata->data[startindex] == 255)
 764                         break;
 765         if (startindex == bitdata->datasize) {
 766                 printk(KERN_INFO "stradis: bad fpga code\n");
 767                 return -1;
 768         }
 769         /* initialize all detected cards */
 770         for (num = 0; num < saa_num; num++) {
 771                 saa = &saa7146s[num];
 772                 if (saa->boardcfg[0] > 20)
 773                         continue;       /* card was programmed */
 774                 loadtwo = (saa->boardcfg[18] & 0x10);
 775                 if (!NewCard)   /* we have an old board */
 776                         for (i = 0; i < 256; i++)
 777                                 bitmangler[i] = ((i & 0x01) << 15) |
 778                                         ((i & 0x02) << 6) | ((i & 0x04) << 4) |
 779                                         ((i & 0x08) << 9) | ((i & 0x10) << 7) |
 780                                         ((i & 0x20) >> 3) | ((i & 0x40) >> 5) |
 781                                         ((i & 0x80) >> 7);
 782                 else            /* else we have a new board */
 783                         for (i = 0; i < 256; i++)
 784                                 bitmangler[i] = ((i & 0x01) << 7) |
 785                                         ((i & 0x02) << 5) | ((i & 0x04) << 3) |
 786                                         ((i & 0x08) << 1) | ((i & 0x10) >> 1) |
 787                                         ((i & 0x20) >> 3) | ((i & 0x40) >> 5) |
 788                                         ((i & 0x80) >> 7);
 789
 790                 dmabuf = (u16 *) saa->dmadebi;
 791                 newdma = (u8 *) saa->dmadebi;
 792                 if (NewCard) {  /* SDM2xxx */
 793                         if (!strncmp(bitdata->loadwhat, "decoder2", 8))
 794                                 continue;       /* fpga not for this card */
 795                         if (!strncmp(&saa->boardcfg[42], bitdata->loadwhat, 8))
 796                                 loadfile = 1;
 797                         else if (loadtwo && !strncmp(&saa->boardcfg[19],
 798                                        bitdata->loadwhat, 8))
 799                                 loadfile = 2;
 800                         else if (!saa->boardcfg[42] && !strncmp("decxl",
 801                                         bitdata->loadwhat, 8))
 802                                 loadfile = 1;   /* special */
 803                         else
 804                                 continue;       /* fpga not for this card */
 805                         if (loadfile != 1 && loadfile != 2)
 806                                 continue;       /* skip to next card */
 807                         if (saa->boardcfg[0] && loadfile == 1)
 808                                 continue;       /* skip to next card */
 809                         if (saa->boardcfg[0] != 1 && loadfile == 2)
 810                                 continue;       /* skip to next card */
 811                         saa->boardcfg[0]++;     /* mark fpga handled */
 812                         printk("stradis%d: loading %s\n", saa->nr,
 813                                 bitdata->loadwhat);
 814                         if (loadtwo && loadfile == 2)
 815                                 goto send_fpga_stuff;
 816                         /* turn on the Audio interface to set PROG low */
 817                         saawrite(0x00400040, SAA7146_GPIO_CTRL);
 818                         saaread(SAA7146_PSR);   /* ensure posted write */
 819                         /* wait for everyone to reset */
 820                         mdelay(10);
 821                         saawrite(0x00400000, SAA7146_GPIO_CTRL);
 822                 } else {        /* original card */
 823                         if (strncmp(bitdata->loadwhat, "decoder2", 8))
 824                                 continue;       /* fpga not for this card */
 825                         /* Pull the Xilinx PROG signal WS3 low */
 826                         saawrite(0x02000200, SAA7146_MC1);
 827                         /* Turn on the Audio interface so can set PROG low */
 828                         saawrite(0x000000c0, SAA7146_ACON1);
 829                         /* Pull the Xilinx INIT signal (GPIO2) low */
 830                         saawrite(0x00400000, SAA7146_GPIO_CTRL);
 831                         /* Make sure everybody resets */
 832                         saaread(SAA7146_PSR);   /* ensure posted write */
 833                         mdelay(10);
 834                         /* Release the Xilinx PROG signal */
 835                         saawrite(0x00000000, SAA7146_ACON1);
 836                         /* Turn off the Audio interface */
 837                         saawrite(0x02000000, SAA7146_MC1);
 838                 }
 839                 /* Release Xilinx INIT signal (WS2) */
 840                 saawrite(0x00000000, SAA7146_GPIO_CTRL);
 841                 /* Wait for the INIT to go High */
 842                 for (i = 0;
 843                         i < 10000 && !(saaread(SAA7146_PSR) & SAA7146_PSR_PIN2);
 844                         i++)
 845                         schedule();
 846                 if (i == 1000) {
 847                         printk(KERN_INFO "stradis%d: no fpga INIT\n", saa->nr);
 848                         return -1;
 849                 }
 850 send_fpga_stuff:
 851                 if (NewCard) {
 852                         for (i = startindex; i < bitdata->datasize; i++)
 853                                 newdma[i - startindex] =
 854                                     bitmangler[bitdata->data[i]];
 855                         debiwrite(saa, 0x01420000, 0, 0,
 856                                 ((bitdata->datasize - startindex) + 5));
 857                         if (loadtwo && loadfile == 1) {
 858                                 printk("stradis%d: awaiting 2nd FPGA bitfile\n",
 859                                        saa->nr);
 860                                 continue;       /* skip to next card */
 861                         }
 862                 } else {
 863                         for (i = startindex; i < bitdata->datasize; i++)
 864                                 dmabuf[i - startindex] =
 865                                         bitmangler[bitdata->data[i]];
 866                         debiwrite(saa, 0x014a0000, 0, 0,
 867                                 ((bitdata->datasize - startindex) + 5) * 2);
 868                 }
 869                 for (i = 0;
 870                         i < 1000 && !(saaread(SAA7146_PSR) & SAA7146_PSR_PIN2);
 871                         i++)
 872                         schedule();
 873                 if (i == 1000) {
 874                         printk(KERN_INFO "stradis%d: FPGA load failed\n",
 875                                saa->nr);
 876                         failure++;
 877                         continue;
 878                 }
 879                 if (!NewCard) {
 880                         /* Pull the Xilinx INIT signal (GPIO2) low */
 881                         saawrite(0x00400000, SAA7146_GPIO_CTRL);
 882                         saaread(SAA7146_PSR);   /* ensure posted write */
 883                         mdelay(2);
 884                         saawrite(0x00000000, SAA7146_GPIO_CTRL);
 885                         mdelay(2);
 886                 }
 887                 printk(KERN_INFO "stradis%d: FPGA Loaded\n", saa->nr);
 888                 saa->boardcfg[0] = 26;  /* mark fpga programmed */
 889                 /* set VXCO to its lowest frequency */
 890                 debiwrite(saa, debNormal, XILINX_PWM, 0, 2);
 891                 if (NewCard) {
 892                         /* mute CS3310 */
 893                         if (HaveCS3310)
 894                                 debiwrite(saa, debNormal, XILINX_CS3310_CMPLT,
 895                                         0, 2);
 896                         /* set VXCO to PWM mode, release reset, blank on */
 897                         debiwrite(saa, debNormal, XILINX_CTL0, 0xffc4, 2);
 898                         mdelay(10);
 899                         /* unmute CS3310 */
 900                         if (HaveCS3310)
 901                                 debiwrite(saa, debNormal, XILINX_CTL0,
 902                                         0x2020, 2);
 903                 }
 904                 /* set source Black */
 905                 debiwrite(saa, debNormal, XILINX_CTL0, 0x1707, 2);
 906                 saa->boardcfg[4] = 22;  /* set NTSC First Active Line */
 907                 saa->boardcfg[5] = 23;  /* set PAL First Active Line */
 908                 saa->boardcfg[54] = 2;  /* set NTSC Last Active Line - 256 */
 909                 saa->boardcfg[55] = 54; /* set PAL Last Active Line - 256 */
 910                 set_out_format(saa, VIDEO_MODE_NTSC);
 911                 mdelay(50);
 912                 /* begin IBM chip init */
 913                 debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 4, 2);
 914                 saaread(SAA7146_PSR);   /* wait for reset */
 915                 mdelay(5);
 916                 debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 0, 2);
 917                 debiread(saa, debNormal, IBM_MP2_CHIP_CONTROL, 2);
 918                 debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 0x10, 2);
 919                 debiwrite(saa, debNormal, IBM_MP2_CMD_ADDR, 0, 2);
 920                 debiwrite(saa, debNormal, IBM_MP2_CHIP_MODE, 0x2e, 2);
 921                 if (NewCard) {
 922                         mdelay(5);
 923                         /* set i2s rate converter to 48KHz */
 924                         debiwrite(saa, debNormal, 0x80c0, 6, 2);
 925                         /* we must init CS8420 first since rev b pulls i2s */
 926                         /* master clock low and CS4341 needs i2s master to */
 927                         /* run the i2c port. */
 928                         if (HaveCS8420)
 929                                 /* 0=consumer, 1=pro */
 930                                 initialize_cs8420(saa, 0);
 931
 932                         mdelay(5);
 933                         if (HaveCS4341)
 934                                 initialize_cs4341(saa);
 935                 }
 936                 debiwrite(saa, debNormal, IBM_MP2_INFC_CTL, 0x48, 2);
 937                 debiwrite(saa, debNormal, IBM_MP2_BEEP_CTL, 0xa000, 2);
 938                 debiwrite(saa, debNormal, IBM_MP2_DISP_LBOR, 0, 2);
 939                 debiwrite(saa, debNormal, IBM_MP2_DISP_TBOR, 0, 2);
 940                 if (NewCard)
 941                         set_genlock_offset(saa, 0);
 942                 debiwrite(saa, debNormal, IBM_MP2_FRNT_ATTEN, 0, 2);
 943 #if 0
 944                 /* enable genlock */
 945                 debiwrite(saa, debNormal, XILINX_CTL0, 0x8000, 2);
 946 #else
 947                 /* disable genlock */
 948                 debiwrite(saa, debNormal, XILINX_CTL0, 0x8080, 2);
 949 #endif
 950         }
 951
 952         return failure;
 953 }
 954
 955 static int do_ibm_reset(struct saa7146 *saa)
 956 {
 957         /* failure if decoder not previously programmed */
 958         if (saa->boardcfg[0] < 37)
 959                 return -EIO;
 960         /* mute CS3310 */
 961         if (HaveCS3310)
 962                 debiwrite(saa, debNormal, XILINX_CS3310_CMPLT, 0, 2);
 963         /* disable interrupts */
 964         saawrite(0, SAA7146_IER);
 965         saa->audhead = saa->audtail = 0;
 966         saa->vidhead = saa->vidtail = 0;
 967         /* tristate debi bus, disable debi transfers */
 968         saawrite(0x00880000, SAA7146_MC1);
 969         /* ensure posted write */
 970         saaread(SAA7146_MC1);
 971         mdelay(50);
 972         /* re-enable debi transfers */
 973         saawrite(0x00880088, SAA7146_MC1);
 974         /* set source Black */
 975         debiwrite(saa, debNormal, XILINX_CTL0, 0x1707, 2);
 976         /* begin IBM chip init */
 977         set_out_format(saa, CurrentMode);
 978         debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 4, 2);
 979         saaread(SAA7146_PSR);   /* wait for reset */
 980         mdelay(5);
 981         debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 0, 2);
 982         debiread(saa, debNormal, IBM_MP2_CHIP_CONTROL, 2);
 983         debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2);
 984         debiwrite(saa, debNormal, IBM_MP2_CHIP_MODE, 0x2e, 2);
 985         if (NewCard) {
 986                 mdelay(5);
 987                 /* set i2s rate converter to 48KHz */
 988                 debiwrite(saa, debNormal, 0x80c0, 6, 2);
 989                 /* we must init CS8420 first since rev b pulls i2s */
 990                 /* master clock low and CS4341 needs i2s master to */
 991                 /* run the i2c port. */
 992                 if (HaveCS8420)
 993                         /* 0=consumer, 1=pro */
 994                         initialize_cs8420(saa, 1);
 995
 996                 mdelay(5);
 997                 if (HaveCS4341)
 998                         initialize_cs4341(saa);
 999         }
1000         debiwrite(saa, debNormal, IBM_MP2_INFC_CTL, 0x48, 2);
1001         debiwrite(saa, debNormal, IBM_MP2_BEEP_CTL, 0xa000, 2);
1002         debiwrite(saa, debNormal, IBM_MP2_DISP_LBOR, 0, 2);
1003         debiwrite(saa, debNormal, IBM_MP2_DISP_TBOR, 0, 2);
1004         if (NewCard)
1005                 set_genlock_offset(saa, 0);
1006         debiwrite(saa, debNormal, IBM_MP2_FRNT_ATTEN, 0, 2);
1007         debiwrite(saa, debNormal, IBM_MP2_OSD_SIZE, 0x2000, 2);
1008         debiwrite(saa, debNormal, IBM_MP2_AUD_CTL, 0x4552, 2);
1009         if (ibm_send_command(saa, IBM_MP2_CONFIG_DECODER,
1010                         (ChipControl == 0x43 ? 0xe800 : 0xe000), 1)) {
1011                 printk(KERN_ERR "stradis%d: IBM config failed\n", saa->nr);
1012         }
1013         if (HaveCS3310) {
1014                 int i = CS3310MaxLvl;
1015                 debiwrite(saa, debNormal, XILINX_CS3310_CMPLT, ((i << 8)| i),2);
1016         }
1017         /* start video decoder */
1018         debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2);
1019         /* 256k vid, 3520 bytes aud */
1020         debiwrite(saa, debNormal, IBM_MP2_RB_THRESHOLD, 0x4037, 2);
1021         debiwrite(saa, debNormal, IBM_MP2_AUD_CTL, 0x4573, 2);
1022         ibm_send_command(saa, IBM_MP2_PLAY, 0, 0);
1023         /* enable buffer threshold irq */
1024         debiwrite(saa, debNormal, IBM_MP2_MASK0, 0xc00c, 2);
1025         /* clear pending interrupts */
1026         debiread(saa, debNormal, IBM_MP2_HOST_INT, 2);
1027         debiwrite(saa, debNormal, XILINX_CTL0, 0x1711, 2);
1028
1029         return 0;
1030 }
1031
1032 /* load the decoder microcode */
1033 static int initialize_ibmmpeg2(struct video_code *microcode)
1034 {
1035         int i, num;
1036         struct saa7146 *saa;
1037
1038         for (num = 0; num < saa_num; num++) {
1039                 saa = &saa7146s[num];
1040                 /* check that FPGA is loaded */
1041                 debiwrite(saa, debNormal, IBM_MP2_OSD_SIZE, 0xa55a, 2);
1042                 i = debiread(saa, debNormal, IBM_MP2_OSD_SIZE, 2);
1043                 if (i != 0xa55a) {
1044                         printk(KERN_INFO "stradis%d: %04x != 0xa55a\n",
1045                                 saa->nr, i);
1046 #if 0
1047                         return -1;
1048 #endif
1049                 }
1050                 if (!strncmp(microcode->loadwhat, "decoder.vid", 11)) {
1051                         if (saa->boardcfg[0] > 27)
1052                                 continue;       /* skip to next card */
1053                         /* load video control store */
1054                         saa->boardcfg[1] = 0x13;        /* no-sync default */
1055                         debiwrite(saa, debNormal, IBM_MP2_WR_PROT, 1, 2);
1056                         debiwrite(saa, debNormal, IBM_MP2_PROC_IADDR, 0, 2);
1057                         for (i = 0; i < microcode->datasize / 2; i++)
1058                                 debiwrite(saa, debNormal, IBM_MP2_PROC_IDATA,
1059                                         (microcode->data[i * 2] << 8) |
1060                                         microcode->data[i * 2 + 1], 2);
1061                         debiwrite(saa, debNormal, IBM_MP2_PROC_IADDR, 0, 2);
1062                         debiwrite(saa, debNormal, IBM_MP2_WR_PROT, 0, 2);
1063                         debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL,
1064                                 ChipControl, 2);
1065                         saa->boardcfg[0] = 28;
1066                 }
1067                 if (!strncmp(microcode->loadwhat, "decoder.aud", 11)) {
1068                         if (saa->boardcfg[0] > 35)
1069                                 continue;       /* skip to next card */
1070                         /* load audio control store */
1071                         debiwrite(saa, debNormal, IBM_MP2_WR_PROT, 1, 2);
1072                         debiwrite(saa, debNormal, IBM_MP2_AUD_IADDR, 0, 2);
1073                         for (i = 0; i < microcode->datasize; i++)
1074                                 debiwrite(saa, debNormal, IBM_MP2_AUD_IDATA,
1075                                         microcode->data[i], 1);
1076                         debiwrite(saa, debNormal, IBM_MP2_AUD_IADDR, 0, 2);
1077                         debiwrite(saa, debNormal, IBM_MP2_WR_PROT, 0, 2);
1078                         debiwrite(saa, debNormal, IBM_MP2_OSD_SIZE, 0x2000, 2);
1079                         debiwrite(saa, debNormal, IBM_MP2_AUD_CTL, 0x4552, 2);
1080                         if (ibm_send_command(saa, IBM_MP2_CONFIG_DECODER,
1081                                         0xe000, 1)) {
1082                                 printk(KERN_ERR "stradis%d: IBM config "
1083                                         "failed\n", saa->nr);
1084                                 return -1;
1085                         }
1086                         /* set PWM to center value */
1087                         if (NewCard) {
1088                                 debiwrite(saa, debNormal, XILINX_PWM,
1089                                         saa->boardcfg[14] +
1090                                         (saa->boardcfg[13] << 8), 2);
1091                         } else
1092                                 debiwrite(saa, debNormal, XILINX_PWM, 0x46, 2);
1093
1094                         if (HaveCS3310) {
1095                                 i = CS3310MaxLvl;
1096                                 debiwrite(saa, debNormal, XILINX_CS3310_CMPLT,
1097                                         (i << 8) | i, 2);
1098                         }
1099                         printk(KERN_INFO "stradis%d: IBM MPEGCD%d Inited\n",
1100                                 saa->nr, 18 + (debiread(saa, debNormal,
1101                                 IBM_MP2_CHIP_CONTROL, 2) >> 12));
1102                         /* start video decoder */
1103                         debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL,
1104                                 ChipControl, 2);
1105                         debiwrite(saa, debNormal, IBM_MP2_RB_THRESHOLD, 0x4037,
1106                                 2);     /* 256k vid, 3520 bytes aud */
1107                         debiwrite(saa, debNormal, IBM_MP2_AUD_CTL, 0x4573, 2);
1108                         ibm_send_command(saa, IBM_MP2_PLAY, 0, 0);
1109                         /* enable buffer threshold irq */
1110                         debiwrite(saa, debNormal, IBM_MP2_MASK0, 0xc00c, 2);
1111                         debiread(saa, debNormal, IBM_MP2_HOST_INT, 2);
1112                         /* enable gpio irq */
1113                         saawrite(0x00002000, SAA7146_GPIO_CTRL);
1114                         /* enable decoder output to HPS */
1115                         debiwrite(saa, debNormal, XILINX_CTL0, 0x1711, 2);
1116                         saa->boardcfg[0] = 37;
1117                 }
1118         }
1119
1120         return 0;
1121 }
1122
1123 static u32 palette2fmt[] = {    /* some of these YUV translations are wrong */
1124         0xffffffff, 0x86000000, 0x87000000, 0x80000000, 0x8100000, 0x82000000,
1125         0x83000000, 0x00000000, 0x03000000, 0x03000000, 0x0a00000, 0x03000000,
1126         0x06000000, 0x00000000, 0x03000000, 0x0a000000, 0x0300000
1127 };
1128 static int bpp2fmt[4] = {
1129         VIDEO_PALETTE_HI240, VIDEO_PALETTE_RGB565, VIDEO_PALETTE_RGB24,
1130         VIDEO_PALETTE_RGB32
1131 };
1132
1133 /* I wish I could find a formula to calculate these... */
1134 static u32 h_prescale[64] = {
1135         0x10000000, 0x18040202, 0x18080000, 0x380c0606, 0x38100204, 0x38140808,
1136         0x38180000, 0x381c0000, 0x3820161c, 0x38242a3b, 0x38281230, 0x382c4460,
1137         0x38301040, 0x38340080, 0x38380000, 0x383c0000, 0x3840fefe, 0x3844ee9f,
1138         0x3848ee9f, 0x384cee9f, 0x3850ee9f, 0x38542a3b, 0x38581230, 0x385c0000,
1139         0x38600000, 0x38640000, 0x38680000, 0x386c0000, 0x38700000, 0x38740000,
1140         0x38780000, 0x387c0000, 0x30800000, 0x38840000, 0x38880000, 0x388c0000,
1141         0x38900000, 0x38940000, 0x38980000, 0x389c0000, 0x38a00000, 0x38a40000,
1142         0x38a80000, 0x38ac0000, 0x38b00000, 0x38b40000, 0x38b80000, 0x38bc0000,
1143         0x38c00000, 0x38c40000, 0x38c80000, 0x38cc0000, 0x38d00000, 0x38d40000,
1144         0x38d80000, 0x38dc0000, 0x38e00000, 0x38e40000, 0x38e80000, 0x38ec0000,
1145         0x38f00000, 0x38f40000, 0x38f80000, 0x38fc0000,
1146 };
1147 static u32 v_gain[64] = {
1148         0x016000ff, 0x016100ff, 0x016100ff, 0x016200ff, 0x016200ff, 0x016200ff,
1149         0x016200ff, 0x016300ff, 0x016300ff, 0x016300ff, 0x016300ff, 0x016300ff,
1150         0x016300ff, 0x016300ff, 0x016300ff, 0x016400ff, 0x016400ff, 0x016400ff,
1151         0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff,
1152         0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff,
1153         0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff,
1154         0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff,
1155         0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff,
1156         0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff,
1157         0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff,
1158         0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff,
1159 };
1160
1161 static void saa7146_set_winsize(struct saa7146 *saa)
1162 {
1163         u32 format;
1164         int offset, yacl, ysci;
1165         saa->win.color_fmt = format =
1166             (saa->win.depth == 15) ? palette2fmt[VIDEO_PALETTE_RGB555] :
1167             palette2fmt[bpp2fmt[(saa->win.bpp - 1) & 3]];
1168         offset = saa->win.x * saa->win.bpp + saa->win.y * saa->win.bpl;
1169         saawrite(saa->win.vidadr + offset, SAA7146_BASE_EVEN1);
1170         saawrite(saa->win.vidadr + offset + saa->win.bpl, SAA7146_BASE_ODD1);
1171         saawrite(saa->win.bpl * 2, SAA7146_PITCH1);
1172         saawrite(saa->win.vidadr + saa->win.bpl * saa->win.sheight,
1173                  SAA7146_PROT_ADDR1);
1174         saawrite(0, SAA7146_PAGE1);
1175         saawrite(format | 0x60, SAA7146_CLIP_FORMAT_CTRL);
1176         offset = (704 / (saa->win.width - 1)) & 0x3f;
1177         saawrite(h_prescale[offset], SAA7146_HPS_H_PRESCALE);
1178         offset = (720896 / saa->win.width) / (offset + 1);
1179         saawrite((offset << 12) | 0x0c, SAA7146_HPS_H_SCALE);
1180         if (CurrentMode == VIDEO_MODE_NTSC) {
1181                 yacl = /*(480 / saa->win.height - 1) & 0x3f */ 0;
1182                 ysci = 1024 - (saa->win.height * 1024 / 480);
1183         } else {
1184                 yacl = /*(576 / saa->win.height - 1) & 0x3f */ 0;
1185                 ysci = 1024 - (saa->win.height * 1024 / 576);
1186         }
1187         saawrite((1 << 31) | (ysci << 21) | (yacl << 15), SAA7146_HPS_V_SCALE);
1188         saawrite(v_gain[yacl], SAA7146_HPS_V_GAIN);
1189         saawrite(((SAA7146_MC2_UPLD_DMA1 | SAA7146_MC2_UPLD_HPS_V |
1190                 SAA7146_MC2_UPLD_HPS_H) << 16) | (SAA7146_MC2_UPLD_DMA1 |
1191                 SAA7146_MC2_UPLD_HPS_V | SAA7146_MC2_UPLD_HPS_H), SAA7146_MC2);
1192 }
1193
1194 /* clip_draw_rectangle(cm,x,y,w,h) -- handle clipping an area
1195  * bitmap is fixed width, 128 bytes (1024 pixels represented)
1196  * arranged most-sigificant-bit-left in 32-bit words
1197  * based on saa7146 clipping hardware, it swaps bytes if LE
1198  * much of this makes up for egcs brain damage -- so if you
1199  * are wondering "why did he do this?" it is because the C
1200  * was adjusted to generate the optimal asm output without
1201  * writing non-portable __asm__ directives.
1202  */
1203
1204 static void clip_draw_rectangle(u32 *clipmap, int x, int y, int w, int h)
1205 {
1206         register int startword, endword;
1207         register u32 bitsleft, bitsright;
1208         u32 *temp;
1209         if (x < 0) {
1210                 w += x;
1211                 x = 0;
1212         }
1213         if (y < 0) {
1214                 h += y;
1215                 y = 0;
1216         }
1217         if (w <= 0 || h <= 0 || x > 1023 || y > 639)
1218                 return;         /* throw away bad clips */
1219         if (x + w > 1024)
1220                 w = 1024 - x;
1221         if (y + h > 640)
1222                 h = 640 - y;
1223         startword = (x >> 5);
1224         endword = ((x + w) >> 5);
1225         bitsleft = (0xffffffff >> (x & 31));
1226         bitsright = (0xffffffff << (~((x + w) - (endword << 5))));
1227         temp = &clipmap[(y << 5) + startword];
1228         w = endword - startword;
1229         if (!w) {
1230                 bitsleft |= bitsright;
1231                 for (y = 0; y < h; y++) {
1232                         *temp |= bitsleft;
1233                         temp += 32;
1234                 }
1235         } else {
1236                 for (y = 0; y < h; y++) {
1237                         *temp++ |= bitsleft;
1238                         for (x = 1; x < w; x++)
1239                                 *temp++ = 0xffffffff;
1240                         *temp |= bitsright;
1241                         temp += (32 - w);
1242                 }
1243         }
1244 }
1245
1246 static void make_clip_tab(struct saa7146 *saa, struct video_clip *cr, int ncr)
1247 {
1248         int i, width, height;
1249         u32 *clipmap;
1250
1251         clipmap = saa->dmavid2;
1252         if ((width = saa->win.width) > 1023)
1253                 width = 1023;   /* sanity check */
1254         if ((height = saa->win.height) > 640)
1255                 height = 639;   /* sanity check */
1256         if (ncr > 0) {          /* rectangles pased */
1257                 /* convert rectangular clips to a bitmap */
1258                 memset(clipmap, 0, VIDEO_CLIPMAP_SIZE); /* clear map */
1259                 for (i = 0; i < ncr; i++)
1260                         clip_draw_rectangle(clipmap, cr[i].x, cr[i].y,
1261                                 cr[i].width, cr[i].height);
1262         }
1263         /* clip against viewing window AND screen
1264            so we do not have to rely on the user program
1265          */
1266         clip_draw_rectangle(clipmap, (saa->win.x + width > saa->win.swidth) ?
1267                 (saa->win.swidth - saa->win.x) : width, 0, 1024, 768);
1268         clip_draw_rectangle(clipmap, 0,
1269                 (saa->win.y + height > saa->win.sheight) ?
1270                 (saa->win.sheight - saa->win.y) : height, 1024, 768);
1271         if (saa->win.x < 0)
1272                 clip_draw_rectangle(clipmap, 0, 0, -saa->win.x, 768);
1273         if (saa->win.y < 0)
1274                 clip_draw_rectangle(clipmap, 0, 0, 1024, -saa->win.y);
1275 }
1276
1277 static int saa_ioctl(struct inode *inode, struct file *file,
1278                      unsigned int cmd, unsigned long argl)
1279 {
1280         struct saa7146 *saa = file->private_data;
1281         void __user *arg = (void __user *)argl;
1282
1283         switch (cmd) {
1284         case VIDIOCGCAP:
1285                 {
1286                         struct video_capability b;
1287                         strcpy(b.name, saa->video_dev.name);
1288                         b.type = VID_TYPE_CAPTURE | VID_TYPE_OVERLAY |
1289                                 VID_TYPE_CLIPPING | VID_TYPE_FRAMERAM |
1290                                 VID_TYPE_SCALES;
1291                         b.channels = 1;
1292                         b.audios = 1;
1293                         b.maxwidth = 768;
1294                         b.maxheight = 576;
1295                         b.minwidth = 32;
1296                         b.minheight = 32;
1297                         if (copy_to_user(arg, &b, sizeof(b)))
1298                                 return -EFAULT;
1299                         return 0;
1300                 }
1301         case VIDIOCGPICT:
1302                 {
1303                         struct video_picture p = saa->picture;
1304                         if (saa->win.depth == 8)
1305                                 p.palette = VIDEO_PALETTE_HI240;
1306                         if (saa->win.depth == 15)
1307                                 p.palette = VIDEO_PALETTE_RGB555;
1308                         if (saa->win.depth == 16)
1309                                 p.palette = VIDEO_PALETTE_RGB565;
1310                         if (saa->win.depth == 24)
1311                                 p.palette = VIDEO_PALETTE_RGB24;
1312                         if (saa->win.depth == 32)
1313                                 p.palette = VIDEO_PALETTE_RGB32;
1314                         if (copy_to_user(arg, &p, sizeof(p)))
1315                                 return -EFAULT;
1316                         return 0;
1317                 }
1318         case VIDIOCSPICT:
1319                 {
1320                         struct video_picture p;
1321                         u32 format;
1322                         if (copy_from_user(&p, arg, sizeof(p)))
1323                                 return -EFAULT;
1324                         if (p.palette < sizeof(palette2fmt) / sizeof(u32)) {
1325                                 format = palette2fmt[p.palette];
1326                                 saa->win.color_fmt = format;
1327                                 saawrite(format | 0x60,
1328                                         SAA7146_CLIP_FORMAT_CTRL);
1329                         }
1330                         saawrite(((p.brightness & 0xff00) << 16) |
1331                                 ((p.contrast & 0xfe00) << 7) |
1332                                 ((p.colour & 0xfe00) >> 9), SAA7146_BCS_CTRL);
1333                         saa->picture = p;
1334                         /* upload changed registers */
1335                         saawrite(((SAA7146_MC2_UPLD_HPS_H |
1336                                 SAA7146_MC2_UPLD_HPS_V) << 16) |
1337                                 SAA7146_MC2_UPLD_HPS_H |
1338                                 SAA7146_MC2_UPLD_HPS_V, SAA7146_MC2);
1339                         return 0;
1340                 }
1341         case VIDIOCSWIN:
1342                 {
1343                         struct video_window vw;
1344                         struct video_clip *vcp = NULL;
1345
1346                         if (copy_from_user(&vw, arg, sizeof(vw)))
1347                                 return -EFAULT;
1348
1349                         /* stop capture */
1350                         if (vw.flags || vw.width < 16 || vw.height < 16) {
1351                                 saawrite((SAA7146_MC1_TR_E_1 << 16),
1352                                         SAA7146_MC1);
1353                                 return -EINVAL;
1354                         }
1355                         /* 32-bit align start and adjust width */
1356                         if (saa->win.bpp < 4) {
1357                                 int i = vw.x;
1358                                 vw.x = (vw.x + 3) & ~3;
1359                                 i = vw.x - i;
1360                                 vw.width -= i;
1361                         }
1362                         saa->win.x = vw.x;
1363                         saa->win.y = vw.y;
1364                         saa->win.width = vw.width;
1365                         if (saa->win.width > 768)
1366                                 saa->win.width = 768;
1367                         saa->win.height = vw.height;
1368                         if (CurrentMode == VIDEO_MODE_NTSC) {
1369                                 if (saa->win.height > 480)
1370                                         saa->win.height = 480;
1371                         } else {
1372                                 if (saa->win.height > 576)
1373                                         saa->win.height = 576;
1374                         }
1375
1376                         /* stop capture */
1377                         saawrite((SAA7146_MC1_TR_E_1 << 16), SAA7146_MC1);
1378                         saa7146_set_winsize(saa);
1379
1380                         /*
1381                          *    Do any clips.
1382                          */
1383                         if (vw.clipcount < 0) {
1384                                 if (copy_from_user(saa->dmavid2, vw.clips,
1385                                                 VIDEO_CLIPMAP_SIZE))
1386                                         return -EFAULT;
1387                         } else if (vw.clipcount > 16384) {
1388                                 return -EINVAL;
1389                         } else if (vw.clipcount > 0) {
1390                                 vcp = vmalloc(sizeof(struct video_clip) *
1391                                         vw.clipcount);
1392                                 if (vcp == NULL)
1393                                         return -ENOMEM;
1394                                 if (copy_from_user(vcp, vw.clips,
1395                                                 sizeof(struct video_clip) *
1396                                                 vw.clipcount)) {
1397                                         vfree(vcp);
1398                                         return -EFAULT;
1399                                 }
1400                         } else  /* nothing clipped */
1401                                 memset(saa->dmavid2, 0, VIDEO_CLIPMAP_SIZE);
1402
1403                         make_clip_tab(saa, vcp, vw.clipcount);
1404                         if (vw.clipcount > 0)
1405                                 vfree(vcp);
1406
1407                         /* start capture & clip dma if we have an address */
1408                         if ((saa->cap & 3) && saa->win.vidadr != 0)
1409                                 saawrite(((SAA7146_MC1_TR_E_1 |
1410                                         SAA7146_MC1_TR_E_2) << 16) | 0xffff,
1411                                         SAA7146_MC1);
1412                         return 0;
1413                 }
1414         case VIDIOCGWIN:
1415                 {
1416                         struct video_window vw;
1417                         vw.x = saa->win.x;
1418                         vw.y = saa->win.y;
1419                         vw.width = saa->win.width;
1420                         vw.height = saa->win.height;
1421                         vw.chromakey = 0;
1422                         vw.flags = 0;
1423                         if (copy_to_user(arg, &vw, sizeof(vw)))
1424                                 return -EFAULT;
1425                         return 0;
1426                 }
1427         case VIDIOCCAPTURE:
1428                 {
1429                         int v;
1430                         if (copy_from_user(&v, arg, sizeof(v)))
1431                                 return -EFAULT;
1432                         if (v == 0) {
1433                                 saa->cap &= ~1;
1434                                 saawrite((SAA7146_MC1_TR_E_1 << 16),
1435                                         SAA7146_MC1);
1436                         } else {
1437                                 if (saa->win.vidadr == 0 || saa->win.width == 0
1438                                                 || saa->win.height == 0)
1439                                         return -EINVAL;
1440                                 saa->cap |= 1;
1441                                 saawrite((SAA7146_MC1_TR_E_1 << 16) | 0xffff,
1442                                         SAA7146_MC1);
1443                         }
1444                         return 0;
1445                 }
1446         case VIDIOCGFBUF:
1447                 {
1448                         struct video_buffer v;
1449                         v.base = (void *)saa->win.vidadr;
1450                         v.height = saa->win.sheight;
1451                         v.width = saa->win.swidth;
1452                         v.depth = saa->win.depth;
1453                         v.bytesperline = saa->win.bpl;
1454                         if (copy_to_user(arg, &v, sizeof(v)))
1455                                 return -EFAULT;
1456                         return 0;
1457
1458                 }
1459         case VIDIOCSFBUF:
1460                 {
1461                         struct video_buffer v;
1462                         if (!capable(CAP_SYS_ADMIN))
1463                                 return -EPERM;
1464                         if (copy_from_user(&v, arg, sizeof(v)))
1465                                 return -EFAULT;
1466                         if (v.depth != 8 && v.depth != 15 && v.depth != 16 &&
1467                             v.depth != 24 && v.depth != 32 && v.width > 16 &&
1468                             v.height > 16 && v.bytesperline > 16)
1469                                 return -EINVAL;
1470                         if (v.base)
1471                                 saa->win.vidadr = (unsigned long)v.base;
1472                         saa->win.sheight = v.height;
1473                         saa->win.swidth = v.width;
1474                         saa->win.bpp = ((v.depth + 7) & 0x38) / 8;
1475                         saa->win.depth = v.depth;
1476                         saa->win.bpl = v.bytesperline;
1477
1478                         DEBUG(printk("Display at %p is %d by %d, bytedepth %d, "
1479                                         "bpl %d\n", v.base, v.width, v.height,
1480                                         saa->win.bpp, saa->win.bpl));
1481                         saa7146_set_winsize(saa);
1482                         return 0;
1483                 }
1484         case VIDIOCKEY:
1485                 {
1486                         /* Will be handled higher up .. */
1487                         return 0;
1488                 }
1489
1490         case VIDIOCGAUDIO:
1491                 {
1492                         struct video_audio v;
1493                         v = saa->audio_dev;
1494                         v.flags &= ~(VIDEO_AUDIO_MUTE | VIDEO_AUDIO_MUTABLE);
1495                         v.flags |= VIDEO_AUDIO_MUTABLE | VIDEO_AUDIO_VOLUME;
1496                         strcpy(v.name, "MPEG");
1497                         v.mode = VIDEO_SOUND_STEREO;
1498                         if (copy_to_user(arg, &v, sizeof(v)))
1499                                 return -EFAULT;
1500                         return 0;
1501                 }
1502         case VIDIOCSAUDIO:
1503                 {
1504                         struct video_audio v;
1505                         int i;
1506                         if (copy_from_user(&v, arg, sizeof(v)))
1507                                 return -EFAULT;
1508                         i = (~(v.volume >> 8)) & 0xff;
1509                         if (!HaveCS4341) {
1510                                 if (v.flags & VIDEO_AUDIO_MUTE)
1511                                         debiwrite(saa, debNormal,
1512                                                 IBM_MP2_FRNT_ATTEN, 0xffff, 2);
1513                                 if (!(v.flags & VIDEO_AUDIO_MUTE))
1514                                         debiwrite(saa, debNormal,
1515                                                 IBM_MP2_FRNT_ATTEN, 0x0000, 2);
1516                                 if (v.flags & VIDEO_AUDIO_VOLUME)
1517                                         debiwrite(saa, debNormal,
1518                                                 IBM_MP2_FRNT_ATTEN,
1519                                                 (i << 8) | i, 2);
1520                         } else {
1521                                 if (v.flags & VIDEO_AUDIO_MUTE)
1522                                         cs4341_setlevel(saa, 0xff, 0xff);
1523                                 if (!(v.flags & VIDEO_AUDIO_MUTE))
1524                                         cs4341_setlevel(saa, 0, 0);
1525                                 if (v.flags & VIDEO_AUDIO_VOLUME)
1526                                         cs4341_setlevel(saa, i, i);
1527                         }
1528                         saa->audio_dev = v;
1529                         return 0;
1530                 }
1531
1532         case VIDIOCGUNIT:
1533                 {
1534                         struct video_unit vu;
1535                         vu.video = saa->video_dev.minor;
1536                         vu.vbi = VIDEO_NO_UNIT;
1537                         vu.radio = VIDEO_NO_UNIT;
1538                         vu.audio = VIDEO_NO_UNIT;
1539                         vu.teletext = VIDEO_NO_UNIT;
1540                         if (copy_to_user(arg, &vu, sizeof(vu)))
1541                                 return -EFAULT;
1542                         return 0;
1543                 }
1544         case VIDIOCSPLAYMODE:
1545                 {
1546                         struct video_play_mode pmode;
1547                         if (copy_from_user((void *)&pmode, arg,
1548                                         sizeof(struct video_play_mode)))
1549                                 return -EFAULT;
1550                         switch (pmode.mode) {
1551                         case VID_PLAY_VID_OUT_MODE:
1552                                 if (pmode.p1 != VIDEO_MODE_NTSC &&
1553                                                 pmode.p1 != VIDEO_MODE_PAL)
1554                                         return -EINVAL;
1555                                 set_out_format(saa, pmode.p1);
1556                                 return 0;
1557                         case VID_PLAY_GENLOCK:
1558                                 debiwrite(saa, debNormal, XILINX_CTL0,
1559                                         pmode.p1 ? 0x8000 : 0x8080, 2);
1560                                 if (NewCard)
1561                                         set_genlock_offset(saa, pmode.p2);
1562                                 return 0;
1563                         case VID_PLAY_NORMAL:
1564                                 debiwrite(saa, debNormal,
1565                                         IBM_MP2_CHIP_CONTROL, ChipControl, 2);
1566                                 ibm_send_command(saa, IBM_MP2_PLAY, 0, 0);
1567                                 saa->playmode = pmode.mode;
1568                                 return 0;
1569                         case VID_PLAY_PAUSE:
1570                                 /* IBM removed the PAUSE command */
1571                                 /* they say use SINGLE_FRAME now */
1572                         case VID_PLAY_SINGLE_FRAME:
1573                                 ibm_send_command(saa, IBM_MP2_SINGLE_FRAME,0,0);
1574                                 if (saa->playmode == pmode.mode) {
1575                                         debiwrite(saa, debNormal,
1576                                                 IBM_MP2_CHIP_CONTROL,
1577                                                 ChipControl, 2);
1578                                 }
1579                                 saa->playmode = pmode.mode;
1580                                 return 0;
1581                         case VID_PLAY_FAST_FORWARD:
1582                                 ibm_send_command(saa, IBM_MP2_FAST_FORWARD,0,0);
1583                                 saa->playmode = pmode.mode;
1584                                 return 0;
1585                         case VID_PLAY_SLOW_MOTION:
1586                                 ibm_send_command(saa, IBM_MP2_SLOW_MOTION,
1587                                         pmode.p1, 0);
1588                                 saa->playmode = pmode.mode;
1589                                 return 0;
1590                         case VID_PLAY_IMMEDIATE_NORMAL:
1591                                 /* ensure transfers resume */
1592                                 debiwrite(saa, debNormal,
1593                                         IBM_MP2_CHIP_CONTROL, ChipControl, 2);
1594                                 ibm_send_command(saa, IBM_MP2_IMED_NORM_PLAY,
1595                                         0, 0);
1596                                 saa->playmode = VID_PLAY_NORMAL;
1597                                 return 0;
1598                         case VID_PLAY_SWITCH_CHANNELS:
1599                                 saa->audhead = saa->audtail = 0;
1600                                 saa->vidhead = saa->vidtail = 0;
1601                                 ibm_send_command(saa, IBM_MP2_FREEZE_FRAME,0,1);
1602                                 ibm_send_command(saa, IBM_MP2_RESET_AUD_RATE,
1603                                         0, 1);
1604                                 debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL,
1605                                         0, 2);
1606                                 ibm_send_command(saa, IBM_MP2_CHANNEL_SWITCH,
1607                                         0, 1);
1608                                 debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL,
1609                                         ChipControl, 2);
1610                                 ibm_send_command(saa, IBM_MP2_PLAY, 0, 0);
1611                                 saa->playmode = VID_PLAY_NORMAL;
1612                                 return 0;
1613                         case VID_PLAY_FREEZE_FRAME:
1614                                 ibm_send_command(saa, IBM_MP2_FREEZE_FRAME,0,0);
1615                                 saa->playmode = pmode.mode;
1616                                 return 0;
1617                         case VID_PLAY_STILL_MODE:
1618                                 ibm_send_command(saa, IBM_MP2_SET_STILL_MODE,
1619                                         0, 0);
1620                                 saa->playmode = pmode.mode;
1621                                 return 0;
1622                         case VID_PLAY_MASTER_MODE:
1623                                 if (pmode.p1 == VID_PLAY_MASTER_NONE)
1624                                         saa->boardcfg[1] = 0x13;
1625                                 else if (pmode.p1 == VID_PLAY_MASTER_VIDEO)
1626                                         saa->boardcfg[1] = 0x23;
1627                                 else if (pmode.p1 == VID_PLAY_MASTER_AUDIO)
1628                                         saa->boardcfg[1] = 0x43;
1629                                 else
1630                                         return -EINVAL;
1631                                 debiwrite(saa, debNormal,
1632                                           IBM_MP2_CHIP_CONTROL, ChipControl, 2);
1633                                 return 0;
1634                         case VID_PLAY_ACTIVE_SCANLINES:
1635                                 if (CurrentMode == VIDEO_MODE_PAL) {
1636                                         if (pmode.p1 < 1 || pmode.p2 > 625)
1637                                                 return -EINVAL;
1638                                         saa->boardcfg[5] = pmode.p1;
1639                                         saa->boardcfg[55] = (pmode.p1 +
1640                                                 (pmode.p2 / 2) - 1) & 0xff;
1641                                 } else {
1642                                         if (pmode.p1 < 4 || pmode.p2 > 525)
1643                                                 return -EINVAL;
1644                                         saa->boardcfg[4] = pmode.p1;
1645                                         saa->boardcfg[54] = (pmode.p1 +
1646                                                 (pmode.p2 / 2) - 4) & 0xff;
1647                                 }
1648                                 set_out_format(saa, CurrentMode);
1649                         case VID_PLAY_RESET:
1650                                 return do_ibm_reset(saa);
1651                         case VID_PLAY_END_MARK:
1652                                 if (saa->endmarktail < saa->endmarkhead) {
1653                                         if (saa->endmarkhead -
1654                                                         saa->endmarktail < 2)
1655                                                 return -ENOSPC;
1656                                 } else if (saa->endmarkhead <=saa->endmarktail){
1657                                         if (saa->endmarktail - saa->endmarkhead
1658                                                         > (MAX_MARKS - 2))
1659                                                 return -ENOSPC;
1660                                 } else
1661                                         return -ENOSPC;
1662                                 saa->endmark[saa->endmarktail] = saa->audtail;
1663                                 saa->endmarktail++;
1664                                 if (saa->endmarktail >= MAX_MARKS)
1665                                         saa->endmarktail = 0;
1666                         }
1667                         return -EINVAL;
1668                 }
1669         case VIDIOCSWRITEMODE:
1670                 {
1671                         int mode;
1672                         if (copy_from_user((void *)&mode, arg, sizeof(int)))
1673                                 return -EFAULT;
1674                         if (mode == VID_WRITE_MPEG_AUD ||
1675                                         mode == VID_WRITE_MPEG_VID ||
1676                                         mode == VID_WRITE_CC ||
1677                                         mode == VID_WRITE_TTX ||
1678                                         mode == VID_WRITE_OSD) {
1679                                 saa->writemode = mode;
1680                                 return 0;
1681                         }
1682                         return -EINVAL;
1683                 }
1684         case VIDIOCSMICROCODE:
1685                 {
1686                         struct video_code ucode;
1687                         __u8 *udata;
1688                         int i;
1689                         if (copy_from_user(&ucode, arg, sizeof(ucode)))
1690                                 return -EFAULT;
1691                         if (ucode.datasize > 65536 || ucode.datasize < 1024 ||
1692                                         strncmp(ucode.loadwhat, "dec", 3))
1693                                 return -EINVAL;
1694                         if ((udata = vmalloc(ucode.datasize)) == NULL)
1695                                 return -ENOMEM;
1696                         if (copy_from_user(udata, ucode.data, ucode.datasize)) {
1697                                 vfree(udata);
1698                                 return -EFAULT;
1699                         }
1700                         ucode.data = udata;
1701                         if (!strncmp(ucode.loadwhat, "decoder.aud", 11) ||
1702                                 !strncmp(ucode.loadwhat, "decoder.vid", 11))
1703                                 i = initialize_ibmmpeg2(&ucode);
1704                         else
1705                                 i = initialize_fpga(&ucode);
1706                         vfree(udata);
1707                         if (i)
1708                                 return -EINVAL;
1709                         return 0;
1710
1711                 }
1712         case VIDIOCGCHAN:       /* this makes xawtv happy */
1713                 {
1714                         struct video_channel v;
1715                         if (copy_from_user(&v, arg, sizeof(v)))
1716                                 return -EFAULT;
1717                         v.flags = VIDEO_VC_AUDIO;
1718                         v.tuners = 0;
1719                         v.type = VID_TYPE_MPEG_DECODER;
1720                         v.norm = CurrentMode;
1721                         strcpy(v.name, "MPEG2");
1722                         if (copy_to_user(arg, &v, sizeof(v)))
1723                                 return -EFAULT;
1724                         return 0;
1725                 }
1726         case VIDIOCSCHAN:       /* this makes xawtv happy */
1727                 {
1728                         struct video_channel v;
1729                         if (copy_from_user(&v, arg, sizeof(v)))
1730                                 return -EFAULT;
1731                         /* do nothing */
1732                         return 0;
1733                 }
1734         default:
1735                 return -ENOIOCTLCMD;
1736         }
1737         return 0;
1738 }
1739
1740 static int saa_mmap(struct file *file, struct vm_area_struct *vma)
1741 {
1742         struct saa7146 *saa = file->private_data;
1743         printk(KERN_DEBUG "stradis%d: saa_mmap called\n", saa->nr);
1744         return -EINVAL;
1745 }
1746
1747 static ssize_t saa_read(struct file *file, char __user * buf,
1748         size_t count, loff_t * ppos)
1749 {
1750         return -EINVAL;
1751 }
1752
1753 static ssize_t saa_write(struct file *file, const char __user * buf,
1754         size_t count, loff_t * ppos)
1755 {
1756         struct saa7146 *saa = file->private_data;
1757         unsigned long todo = count;
1758         int blocksize, split;
1759         unsigned long flags;
1760
1761         while (todo > 0) {
1762                 if (saa->writemode == VID_WRITE_MPEG_AUD) {
1763                         spin_lock_irqsave(&saa->lock, flags);
1764                         if (saa->audhead <= saa->audtail)
1765                                 blocksize = 65536 -
1766                                         (saa->audtail - saa->audhead);
1767                         else
1768                                 blocksize = saa->audhead - saa->audtail;
1769                         spin_unlock_irqrestore(&saa->lock, flags);
1770                         if (blocksize < 16384) {
1771                                 saawrite(SAA7146_PSR_DEBI_S |
1772                                         SAA7146_PSR_PIN1, SAA7146_IER);
1773                                 saawrite(SAA7146_PSR_PIN1, SAA7146_PSR);
1774                                 /* wait for buffer space to open */
1775                                 interruptible_sleep_on(&saa->audq);
1776                         }
1777                         spin_lock_irqsave(&saa->lock, flags);
1778                         if (saa->audhead <= saa->audtail) {
1779                                 blocksize = 65536 -
1780                                         (saa->audtail - saa->audhead);
1781                                 split = 65536 - saa->audtail;
1782                         } else {
1783                                 blocksize = saa->audhead - saa->audtail;
1784                                 split = 65536;
1785                         }
1786                         spin_unlock_irqrestore(&saa->lock, flags);
1787                         blocksize--;
1788                         if (blocksize > todo)
1789                                 blocksize = todo;
1790                         /* double check that we really have space */
1791                         if (!blocksize)
1792                                 return -ENOSPC;
1793                         if (split < blocksize) {
1794                                 if (copy_from_user(saa->audbuf +
1795                                                 saa->audtail, buf, split))
1796                                         return -EFAULT;
1797                                 buf += split;
1798                                 todo -= split;
1799                                 blocksize -= split;
1800                                 saa->audtail = 0;
1801                         }
1802                         if (copy_from_user(saa->audbuf + saa->audtail, buf,
1803                                         blocksize))
1804                                 return -EFAULT;
1805                         saa->audtail += blocksize;
1806                         todo -= blocksize;
1807                         buf += blocksize;
1808                         saa->audtail &= 0xffff;
1809                 } else if (saa->writemode == VID_WRITE_MPEG_VID) {
1810                         spin_lock_irqsave(&saa->lock, flags);
1811                         if (saa->vidhead <= saa->vidtail)
1812                                 blocksize = 524288 -
1813                                         (saa->vidtail - saa->vidhead);
1814                         else
1815                                 blocksize = saa->vidhead - saa->vidtail;
1816                         spin_unlock_irqrestore(&saa->lock, flags);
1817                         if (blocksize < 65536) {
1818                                 saawrite(SAA7146_PSR_DEBI_S |
1819                                         SAA7146_PSR_PIN1, SAA7146_IER);
1820                                 saawrite(SAA7146_PSR_PIN1, SAA7146_PSR);
1821                                 /* wait for buffer space to open */
1822                                 interruptible_sleep_on(&saa->vidq);
1823                         }
1824                         spin_lock_irqsave(&saa->lock, flags);
1825                         if (saa->vidhead <= saa->vidtail) {
1826                                 blocksize = 524288 -
1827                                         (saa->vidtail - saa->vidhead);
1828                                 split = 524288 - saa->vidtail;
1829                         } else {
1830                                 blocksize = saa->vidhead - saa->vidtail;
1831                                 split = 524288;
1832                         }
1833                         spin_unlock_irqrestore(&saa->lock, flags);
1834                         blocksize--;
1835                         if (blocksize > todo)
1836                                 blocksize = todo;
1837                         /* double check that we really have space */
1838                         if (!blocksize)
1839                                 return -ENOSPC;
1840                         if (split < blocksize) {
1841                                 if (copy_from_user(saa->vidbuf +
1842                                                 saa->vidtail, buf, split))
1843                                         return -EFAULT;
1844                                 buf += split;
1845                                 todo -= split;
1846                                 blocksize -= split;
1847                                 saa->vidtail = 0;
1848                         }
1849                         if (copy_from_user(saa->vidbuf + saa->vidtail, buf,
1850                                         blocksize))
1851                                 return -EFAULT;
1852                         saa->vidtail += blocksize;
1853                         todo -= blocksize;
1854                         buf += blocksize;
1855                         saa->vidtail &= 0x7ffff;
1856                 } else if (saa->writemode == VID_WRITE_OSD) {
1857                         if (count > 131072)
1858                                 return -ENOSPC;
1859                         if (copy_from_user(saa->osdbuf, buf, count))
1860                                 return -EFAULT;
1861                         buf += count;
1862                         saa->osdhead = 0;
1863                         saa->osdtail = count;
1864                         debiwrite(saa, debNormal, IBM_MP2_OSD_ADDR, 0, 2);
1865                         debiwrite(saa, debNormal, IBM_MP2_OSD_LINK_ADDR, 0, 2);
1866                         debiwrite(saa, debNormal, IBM_MP2_MASK0, 0xc00d, 2);
1867                         debiwrite(saa, debNormal, IBM_MP2_DISP_MODE,
1868                                 debiread(saa, debNormal,
1869                                         IBM_MP2_DISP_MODE, 2) | 1, 2);
1870                         /* trigger osd data transfer */
1871                         saawrite(SAA7146_PSR_DEBI_S |
1872                                  SAA7146_PSR_PIN1, SAA7146_IER);
1873                         saawrite(SAA7146_PSR_PIN1, SAA7146_PSR);
1874                 }
1875         }
1876         return count;
1877 }
1878
1879 static int saa_open(struct inode *inode, struct file *file)
1880 {
1881         struct video_device *vdev = video_devdata(file);
1882         struct saa7146 *saa = container_of(vdev, struct saa7146, video_dev);
1883
1884         file->private_data = saa;
1885
1886         saa->user++;
1887         if (saa->user > 1)
1888                 return 0;       /* device open already, don't reset */
1889         saa->writemode = VID_WRITE_MPEG_VID;    /* default to video */
1890         return 0;
1891 }
1892
1893 static int saa_release(struct inode *inode, struct file *file)
1894 {
1895         struct saa7146 *saa = file->private_data;
1896         saa->user--;
1897
1898         if (saa->user > 0)      /* still someone using device */
1899                 return 0;
1900         saawrite(0x007f0000, SAA7146_MC1);      /* stop all overlay dma */
1901         return 0;
1902 }
1903
1904 static struct file_operations saa_fops = {
1905         .owner = THIS_MODULE,
1906         .open = saa_open,
1907         .release = saa_release,
1908         .ioctl = saa_ioctl,
1909         .compat_ioctl = v4l_compat_ioctl32,
1910         .read = saa_read,
1911         .llseek = no_llseek,
1912         .write = saa_write,
1913         .mmap = saa_mmap,
1914 };
1915
1916 /* template for video_device-structure */
1917 static struct video_device saa_template = {
1918         .name = "SAA7146A",
1919         .type = VID_TYPE_CAPTURE | VID_TYPE_OVERLAY,
1920         .hardware = VID_HARDWARE_SAA7146,
1921         .fops = &saa_fops,
1922         .minor = -1,
1923 };
1924
1925 static int __devinit configure_saa7146(struct pci_dev *pdev, int num)
1926 {
1927         int retval;
1928         struct saa7146 *saa = pci_get_drvdata(pdev);
1929
1930         saa->endmarkhead = saa->endmarktail = 0;
1931         saa->win.x = saa->win.y = 0;
1932         saa->win.width = saa->win.cropwidth = 720;
1933         saa->win.height = saa->win.cropheight = 480;
1934         saa->win.cropx = saa->win.cropy = 0;
1935         saa->win.bpp = 2;
1936         saa->win.depth = 16;
1937         saa->win.color_fmt = palette2fmt[VIDEO_PALETTE_RGB565];
1938         saa->win.bpl = 1024 * saa->win.bpp;
1939         saa->win.swidth = 1024;
1940         saa->win.sheight = 768;
1941         saa->picture.brightness = 32768;
1942         saa->picture.contrast = 38768;
1943         saa->picture.colour = 32768;
1944         saa->cap = 0;
1945         saa->nr = num;
1946         saa->playmode = VID_PLAY_NORMAL;
1947         memset(saa->boardcfg, 0, 64);   /* clear board config area */
1948         saa->saa7146_mem = NULL;
1949         saa->dmavid1 = saa->dmavid2 = saa->dmavid3 = saa->dmaa1in =
1950             saa->dmaa1out = saa->dmaa2in = saa->dmaa2out =
1951             saa->pagevid1 = saa->pagevid2 = saa->pagevid3 = saa->pagea1in =
1952             saa->pagea1out = saa->pagea2in = saa->pagea2out =
1953             saa->pagedebi = saa->dmaRPS1 = saa->dmaRPS2 = saa->pageRPS1 =
1954             saa->pageRPS2 = NULL;
1955         saa->audbuf = saa->vidbuf = saa->osdbuf = saa->dmadebi = NULL;
1956         saa->audhead = saa->vidtail = 0;
1957
1958         init_waitqueue_head(&saa->i2cq);
1959         init_waitqueue_head(&saa->audq);
1960         init_waitqueue_head(&saa->debiq);
1961         init_waitqueue_head(&saa->vidq);
1962         spin_lock_init(&saa->lock);
1963
1964         retval = pci_enable_device(pdev);
1965         if (retval) {
1966                 dev_err(&pdev->dev, "%d: pci_enable_device failed!\n", num);
1967                 goto err;
1968         }
1969
1970         saa->id = pdev->device;
1971         saa->irq = pdev->irq;
1972         saa->video_dev.minor = -1;
1973         saa->saa7146_adr = pci_resource_start(pdev, 0);
1974         pci_read_config_byte(pdev, PCI_CLASS_REVISION, &saa->revision);
1975
1976         saa->saa7146_mem = ioremap(saa->saa7146_adr, 0x200);
1977         if (saa->saa7146_mem == NULL) {
1978                 dev_err(&pdev->dev, "%d: ioremap failed!\n", num);
1979                 retval = -EIO;
1980                 goto err;
1981         }
1982
1983         memcpy(&saa->video_dev, &saa_template, sizeof(saa_template));
1984         saawrite(0, SAA7146_IER);       /* turn off all interrupts */
1985
1986         retval = request_irq(saa->irq, saa7146_irq, IRQF_SHARED | IRQF_DISABLED,
1987                 "stradis", saa);
1988         if (retval == -EINVAL)
1989                 dev_err(&pdev->dev, "%d: Bad irq number or handler\n", num);
1990         else if (retval == -EBUSY)
1991                 dev_err(&pdev->dev, "%d: IRQ %ld busy, change your PnP config "
1992                         "in BIOS\n", num, saa->irq);
1993         if (retval < 0)
1994                 goto errio;
1995
1996         pci_set_master(pdev);
1997         retval = video_register_device(&saa->video_dev, VFL_TYPE_GRABBER,
1998                 video_nr);
1999         if (retval < 0) {
2000                 dev_err(&pdev->dev, "%d: error in registering video device!\n",
2001                         num);
2002                 goto errio;
2003         }
2004
2005         return 0;
2006 errio:
2007         iounmap(saa->saa7146_mem);
2008 err:
2009         return retval;
2010 }
2011
2012 static int __devinit init_saa7146(struct pci_dev *pdev)
2013 {
2014         struct saa7146 *saa = pci_get_drvdata(pdev);
2015
2016         saa->user = 0;
2017         /* reset the saa7146 */
2018         saawrite(0xffff0000, SAA7146_MC1);
2019         mdelay(5);
2020         /* enable debi and i2c transfers and pins */
2021         saawrite(((SAA7146_MC1_EDP | SAA7146_MC1_EI2C |
2022                    SAA7146_MC1_TR_E_DEBI) << 16) | 0xffff, SAA7146_MC1);
2023         /* ensure proper state of chip */
2024         saawrite(0x00000000, SAA7146_PAGE1);
2025         saawrite(0x00f302c0, SAA7146_NUM_LINE_BYTE1);
2026         saawrite(0x00000000, SAA7146_PAGE2);
2027         saawrite(0x01400080, SAA7146_NUM_LINE_BYTE2);
2028         saawrite(0x00000000, SAA7146_DD1_INIT);
2029         saawrite(0x00000000, SAA7146_DD1_STREAM_B);
2030         saawrite(0x00000000, SAA7146_DD1_STREAM_A);
2031         saawrite(0x00000000, SAA7146_BRS_CTRL);
2032         saawrite(0x80400040, SAA7146_BCS_CTRL);
2033         saawrite(0x0000e000 /*| (1<<29) */ , SAA7146_HPS_CTRL);
2034         saawrite(0x00000060, SAA7146_CLIP_FORMAT_CTRL);
2035         saawrite(0x00000000, SAA7146_ACON1);
2036         saawrite(0x00000000, SAA7146_ACON2);
2037         saawrite(0x00000600, SAA7146_I2C_STATUS);
2038         saawrite(((SAA7146_MC2_UPLD_D1_B | SAA7146_MC2_UPLD_D1_A |
2039                 SAA7146_MC2_UPLD_BRS | SAA7146_MC2_UPLD_HPS_H |
2040                 SAA7146_MC2_UPLD_HPS_V | SAA7146_MC2_UPLD_DMA2 |
2041                 SAA7146_MC2_UPLD_DMA1 | SAA7146_MC2_UPLD_I2C) << 16) | 0xffff,
2042                 SAA7146_MC2);
2043         /* setup arbitration control registers */
2044         saawrite(0x1412121a, SAA7146_PCI_BT_V1);
2045
2046         /* allocate 32k dma buffer + 4k for page table */
2047         if ((saa->dmadebi = kmalloc(32768 + 4096, GFP_KERNEL)) == NULL) {
2048                 dev_err(&pdev->dev, "%d: debi kmalloc failed\n", saa->nr);
2049                 goto err;
2050         }
2051 #if 0
2052         saa->pagedebi = saa->dmadebi + 32768;   /* top 4k is for mmu */
2053         saawrite(virt_to_bus(saa->pagedebi) /*|0x800 */ , SAA7146_DEBI_PAGE);
2054         for (i = 0; i < 12; i++)        /* setup mmu page table */
2055                 saa->pagedebi[i] = virt_to_bus((saa->dmadebi + i * 4096));
2056 #endif
2057         saa->audhead = saa->vidhead = saa->osdhead = 0;
2058         saa->audtail = saa->vidtail = saa->osdtail = 0;
2059         if (saa->vidbuf == NULL && (saa->vidbuf = vmalloc(524288)) == NULL) {
2060                 dev_err(&pdev->dev, "%d: malloc failed\n", saa->nr);
2061                 goto err;
2062         }
2063         if (saa->audbuf == NULL && (saa->audbuf = vmalloc(65536)) == NULL) {
2064                 dev_err(&pdev->dev, "%d: malloc failed\n", saa->nr);
2065                 goto errfree;
2066         }
2067         if (saa->osdbuf == NULL && (saa->osdbuf = vmalloc(131072)) == NULL) {
2068                 dev_err(&pdev->dev, "%d: malloc failed\n", saa->nr);
2069                 goto errfree;
2070         }
2071         /* allocate 81920 byte buffer for clipping */
2072         if ((saa->dmavid2 = kzalloc(VIDEO_CLIPMAP_SIZE, GFP_KERNEL)) == NULL) {
2073                 dev_err(&pdev->dev, "%d: clip kmalloc failed\n", saa->nr);
2074                 goto errfree;
2075         }
2076         /* setup clipping registers */
2077         saawrite(virt_to_bus(saa->dmavid2), SAA7146_BASE_EVEN2);
2078         saawrite(virt_to_bus(saa->dmavid2) + 128, SAA7146_BASE_ODD2);
2079         saawrite(virt_to_bus(saa->dmavid2) + VIDEO_CLIPMAP_SIZE,
2080                  SAA7146_PROT_ADDR2);
2081         saawrite(256, SAA7146_PITCH2);
2082         saawrite(4, SAA7146_PAGE2);     /* dma direction: read, no byteswap */
2083         saawrite(((SAA7146_MC2_UPLD_DMA2) << 16) | SAA7146_MC2_UPLD_DMA2,
2084                  SAA7146_MC2);
2085         I2CBusScan(saa);
2086
2087         return 0;
2088 errfree:
2089         vfree(saa->osdbuf);
2090         vfree(saa->audbuf);
2091         vfree(saa->vidbuf);
2092         saa->audbuf = saa->osdbuf = saa->vidbuf = NULL;
2093 err:
2094         return -ENOMEM;
2095 }
2096
2097 static void stradis_release_saa(struct pci_dev *pdev)
2098 {
2099         u8 command;
2100         struct saa7146 *saa = pci_get_drvdata(pdev);
2101
2102         /* turn off all capturing, DMA and IRQs */
2103         saawrite(0xffff0000, SAA7146_MC1);      /* reset chip */
2104         saawrite(0, SAA7146_MC2);
2105         saawrite(0, SAA7146_IER);
2106         saawrite(0xffffffffUL, SAA7146_ISR);
2107
2108         /* disable PCI bus-mastering */
2109         pci_read_config_byte(pdev, PCI_COMMAND, &command);
2110         command &= ~PCI_COMMAND_MASTER;
2111         pci_write_config_byte(pdev, PCI_COMMAND, command);
2112
2113         /* unmap and free memory */
2114         saa->audhead = saa->audtail = saa->osdhead = 0;
2115         saa->vidhead = saa->vidtail = saa->osdtail = 0;
2116         vfree(saa->vidbuf);
2117         vfree(saa->audbuf);
2118         vfree(saa->osdbuf);
2119         kfree(saa->dmavid2);
2120         saa->audbuf = saa->vidbuf = saa->osdbuf = NULL;
2121         saa->dmavid2 = NULL;
2122         kfree(saa->dmadebi);
2123         kfree(saa->dmavid1);
2124         kfree(saa->dmavid3);
2125         kfree(saa->dmaa1in);
2126         kfree(saa->dmaa1out);
2127         kfree(saa->dmaa2in);
2128         kfree(saa->dmaa2out);
2129         kfree(saa->dmaRPS1);
2130         kfree(saa->dmaRPS2);
2131         free_irq(saa->irq, saa);
2132         if (saa->saa7146_mem)
2133                 iounmap(saa->saa7146_mem);
2134         if (saa->video_dev.minor != -1)
2135                 video_unregister_device(&saa->video_dev);
2136 }
2137
2138 static int __devinit stradis_probe(struct pci_dev *pdev,
2139         const struct pci_device_id *ent)
2140 {
2141         int retval = -EINVAL;
2142
2143         if (saa_num >= SAA7146_MAX)
2144                 goto err;
2145
2146         if (!pdev->subsystem_vendor)
2147                 dev_info(&pdev->dev, "%d: rev1 decoder\n", saa_num);
2148         else
2149                 dev_info(&pdev->dev, "%d: SDM2xx found\n", saa_num);
2150
2151         pci_set_drvdata(pdev, &saa7146s[saa_num]);
2152
2153         retval = configure_saa7146(pdev, saa_num);
2154         if (retval) {
2155                 dev_err(&pdev->dev, "%d: error in configuring\n", saa_num);
2156                 goto err;
2157         }
2158
2159         if (init_saa7146(pdev) < 0) {
2160                 dev_err(&pdev->dev, "%d: error in initialization\n", saa_num);
2161                 retval = -EIO;
2162                 goto errrel;
2163         }
2164
2165         saa_num++;
2166
2167         return 0;
2168 errrel:
2169         stradis_release_saa(pdev);
2170 err:
2171         return retval;
2172 }
2173
2174 static void __devexit stradis_remove(struct pci_dev *pdev)
2175 {
2176         stradis_release_saa(pdev);
2177 }
2178
2179 static struct pci_device_id stradis_pci_tbl[] = {
2180         { PCI_DEVICE(PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146) },
2181         { 0 }
2182 };
2183
2184
2185 static struct pci_driver stradis_driver = {
2186         .name = "stradis",
2187         .id_table = stradis_pci_tbl,
2188         .probe = stradis_probe,
2189         .remove = __devexit_p(stradis_remove)
2190 };
2191
2192 static int __init stradis_init(void)
2193 {
2194         int retval;
2195
2196         saa_num = 0;
2197
2198         retval = pci_register_driver(&stradis_driver);
2199         if (retval)
2200                 printk(KERN_ERR "stradis: Unable to register pci driver.\n");
2201
2202         return retval;
2203 }
2204
2205 static void __exit stradis_exit(void)
2206 {
2207         pci_unregister_driver(&stradis_driver);
2208         printk(KERN_INFO "stradis: module cleanup complete\n");
2209 }
2210
2211 module_init(stradis_init);
2212 module_exit(stradis_exit);