sound/drivers/vx/vx_core.c

   1 /*
   2  * Driver for Digigram VX soundcards
   3  *
   4  * Hardware core part
   5  *
   6  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22
  23 #include <linux/delay.h>
  24 #include <linux/slab.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/init.h>
  27 #include <linux/device.h>
  28 #include <linux/firmware.h>
  29 #include <sound/core.h>
  30 #include <sound/pcm.h>
  31 #include <sound/asoundef.h>
  32 #include <sound/info.h>
  33 #include <asm/io.h>
  34 #include <sound/vx_core.h>
  35 #include "vx_cmd.h"
  36
  37 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  38 MODULE_DESCRIPTION("Common routines for Digigram VX drivers");
  39 MODULE_LICENSE("GPL");
  40
  41
  42 /*
  43  * vx_check_reg_bit - wait for the specified bit is set/reset on a register
  44  * @reg: register to check
  45  * @mask: bit mask
  46  * @bit: resultant bit to be checked
  47  * @time: time-out of loop in msec
  48  *
  49  * returns zero if a bit matches, or a negative error code.
  50  */
  51 int snd_vx_check_reg_bit(struct vx_core *chip, int reg, int mask, int bit, int time)
  52 {
  53         unsigned long end_time = jiffies + (time * HZ + 999) / 1000;
  54 #ifdef CONFIG_SND_DEBUG
  55         static char *reg_names[VX_REG_MAX] = {
  56                 "ICR", "CVR", "ISR", "IVR", "RXH", "RXM", "RXL",
  57                 "DMA", "CDSP", "RFREQ", "RUER/V2", "DATA", "MEMIRQ",
  58                 "ACQ", "BIT0", "BIT1", "MIC0", "MIC1", "MIC2",
  59                 "MIC3", "INTCSR", "CNTRL", "GPIOC",
  60                 "LOFREQ", "HIFREQ", "CSUER", "RUER"
  61         };
  62 #endif
  63         do {
  64                 if ((snd_vx_inb(chip, reg) & mask) == bit)
  65                         return 0;
  66                 //msleep(10);
  67         } while (time_after_eq(end_time, jiffies));
  68         snd_printd(KERN_DEBUG "vx_check_reg_bit: timeout, reg=%s, mask=0x%x, val=0x%x\n", reg_names[reg], mask, snd_vx_inb(chip, reg));
  69         return -EIO;
  70 }
  71
  72 EXPORT_SYMBOL(snd_vx_check_reg_bit);
  73
  74 /*
  75  * vx_send_irq_dsp - set command irq bit
  76  * @num: the requested IRQ type, IRQ_XXX
  77  *
  78  * this triggers the specified IRQ request
  79  * returns 0 if successful, or a negative error code.
  80  *
  81  */
  82 static int vx_send_irq_dsp(struct vx_core *chip, int num)
  83 {
  84         int nirq;
  85
  86         /* wait for Hc = 0 */
  87         if (snd_vx_check_reg_bit(chip, VX_CVR, CVR_HC, 0, 200) < 0)
  88                 return -EIO;
  89
  90         nirq = num;
  91         if (vx_has_new_dsp(chip))
  92                 nirq += VXP_IRQ_OFFSET;
  93         vx_outb(chip, CVR, (nirq >> 1) | CVR_HC);
  94         return 0;
  95 }
  96
  97
  98 /*
  99  * vx_reset_chk - reset CHK bit on ISR
 100  *
 101  * returns 0 if successful, or a negative error code.
 102  */
 103 static int vx_reset_chk(struct vx_core *chip)
 104 {
 105         /* Reset irq CHK */
 106         if (vx_send_irq_dsp(chip, IRQ_RESET_CHK) < 0)
 107                 return -EIO;
 108         /* Wait until CHK = 0 */
 109         if (vx_check_isr(chip, ISR_CHK, 0, 200) < 0)
 110                 return -EIO;
 111         return 0;
 112 }
 113
 114 /*
 115  * vx_transfer_end - terminate message transfer
 116  * @cmd: IRQ message to send (IRQ_MESS_XXX_END)
 117  *
 118  * returns 0 if successful, or a negative error code.
 119  * the error code can be VX-specific, retrieved via vx_get_error().
 120  * NB: call with spinlock held!
 121  */
 122 static int vx_transfer_end(struct vx_core *chip, int cmd)
 123 {
 124         int err;
 125
 126         if ((err = vx_reset_chk(chip)) < 0)
 127                 return err;
 128
 129         /* irq MESS_READ/WRITE_END */
 130         if ((err = vx_send_irq_dsp(chip, cmd)) < 0)
 131                 return err;
 132
 133         /* Wait CHK = 1 */
 134         if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
 135                 return err;
 136
 137         /* If error, Read RX */
 138         if ((err = vx_inb(chip, ISR)) & ISR_ERR) {
 139                 if ((err = vx_wait_for_rx_full(chip)) < 0) {
 140                         snd_printd(KERN_DEBUG "transfer_end: error in rx_full\n");
 141                         return err;
 142                 }
 143                 err = vx_inb(chip, RXH) << 16;
 144                 err |= vx_inb(chip, RXM) << 8;
 145                 err |= vx_inb(chip, RXL);
 146                 snd_printd(KERN_DEBUG "transfer_end: error = 0x%x\n", err);
 147                 return -(VX_ERR_MASK | err);
 148         }
 149         return 0;
 150 }
 151
 152 /*
 153  * vx_read_status - return the status rmh
 154  * @rmh: rmh record to store the status
 155  *
 156  * returns 0 if successful, or a negative error code.
 157  * the error code can be VX-specific, retrieved via vx_get_error().
 158  * NB: call with spinlock held!
 159  */
 160 static int vx_read_status(struct vx_core *chip, struct vx_rmh *rmh)
 161 {
 162         int i, err, val, size;
 163
 164         /* no read necessary? */
 165         if (rmh->DspStat == RMH_SSIZE_FIXED && rmh->LgStat == 0)
 166                 return 0;
 167
 168         /* Wait for RX full (with timeout protection)
 169          * The first word of status is in RX
 170          */
 171         err = vx_wait_for_rx_full(chip);
 172         if (err < 0)
 173                 return err;
 174
 175         /* Read RX */
 176         val = vx_inb(chip, RXH) << 16;
 177         val |= vx_inb(chip, RXM) << 8;
 178         val |= vx_inb(chip, RXL);
 179
 180         /* If status given by DSP, let's decode its size */
 181         switch (rmh->DspStat) {
 182         case RMH_SSIZE_ARG:
 183                 size = val & 0xff;
 184                 rmh->Stat[0] = val & 0xffff00;
 185                 rmh->LgStat = size + 1;
 186                 break;
 187         case RMH_SSIZE_MASK:
 188                 /* Let's count the arg numbers from a mask */
 189                 rmh->Stat[0] = val;
 190                 size = 0;
 191                 while (val) {
 192                         if (val & 0x01)
 193                                 size++;
 194                         val >>= 1;
 195                 }
 196                 rmh->LgStat = size + 1;
 197                 break;
 198         default:
 199                 /* else retrieve the status length given by the driver */
 200                 size = rmh->LgStat;
 201                 rmh->Stat[0] = val;  /* Val is the status 1st word */
 202                 size--;              /* hence adjust remaining length */
 203                 break;
 204         }
 205
 206         if (size < 1)
 207                 return 0;
 208         snd_assert(size <= SIZE_MAX_STATUS, return -EINVAL);
 209
 210         for (i = 1; i <= size; i++) {
 211                 /* trigger an irq MESS_WRITE_NEXT */
 212                 err = vx_send_irq_dsp(chip, IRQ_MESS_WRITE_NEXT);
 213                 if (err < 0)
 214                         return err;
 215                 /* Wait for RX full (with timeout protection) */
 216                 err = vx_wait_for_rx_full(chip);
 217                 if (err < 0)
 218                         return err;
 219                 rmh->Stat[i] = vx_inb(chip, RXH) << 16;
 220                 rmh->Stat[i] |= vx_inb(chip, RXM) <<  8;
 221                 rmh->Stat[i] |= vx_inb(chip, RXL);
 222         }
 223
 224         return vx_transfer_end(chip, IRQ_MESS_WRITE_END);
 225 }
 226
 227
 228 #define MASK_MORE_THAN_1_WORD_COMMAND   0x00008000
 229 #define MASK_1_WORD_COMMAND             0x00ff7fff
 230
 231 /*
 232  * vx_send_msg_nolock - send a DSP message and read back the status
 233  * @rmh: the rmh record to send and receive
 234  *
 235  * returns 0 if successful, or a negative error code.
 236  * the error code can be VX-specific, retrieved via vx_get_error().
 237  *
 238  * this function doesn't call spinlock at all.
 239  */
 240 int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh)
 241 {
 242         int i, err;
 243
 244         if (chip->chip_status & VX_STAT_IS_STALE)
 245                 return -EBUSY;
 246
 247         if ((err = vx_reset_chk(chip)) < 0) {
 248                 snd_printd(KERN_DEBUG "vx_send_msg: vx_reset_chk error\n");
 249                 return err;
 250         }
 251
 252 #if 0
 253         printk(KERN_DEBUG "rmh: cmd = 0x%06x, length = %d, stype = %d\n",
 254                rmh->Cmd[0], rmh->LgCmd, rmh->DspStat);
 255         if (rmh->LgCmd > 1) {
 256                 printk(KERN_DEBUG "  ");
 257                 for (i = 1; i < rmh->LgCmd; i++)
 258                         printk("0x%06x ", rmh->Cmd[i]);
 259                 printk("\n");
 260         }
 261 #endif
 262         /* Check bit M is set according to length of the command */
 263         if (rmh->LgCmd > 1)
 264                 rmh->Cmd[0] |= MASK_MORE_THAN_1_WORD_COMMAND;
 265         else
 266                 rmh->Cmd[0] &= MASK_1_WORD_COMMAND;
 267
 268         /* Wait for TX empty */
 269         if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) {
 270                 snd_printd(KERN_DEBUG "vx_send_msg: wait tx empty error\n");
 271                 return err;
 272         }
 273
 274         /* Write Cmd[0] */
 275         vx_outb(chip, TXH, (rmh->Cmd[0] >> 16) & 0xff);
 276         vx_outb(chip, TXM, (rmh->Cmd[0] >> 8) & 0xff);
 277         vx_outb(chip, TXL, rmh->Cmd[0] & 0xff);
 278
 279         /* Trigger irq MESSAGE */
 280         if ((err = vx_send_irq_dsp(chip, IRQ_MESSAGE)) < 0) {
 281                 snd_printd(KERN_DEBUG "vx_send_msg: send IRQ_MESSAGE error\n");
 282                 return err;
 283         }
 284
 285         /* Wait for CHK = 1 */
 286         if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
 287                 return err;
 288
 289         /* If error, get error value from RX */
 290         if (vx_inb(chip, ISR) & ISR_ERR) {
 291                 if ((err = vx_wait_for_rx_full(chip)) < 0) {
 292                         snd_printd(KERN_DEBUG "vx_send_msg: rx_full read error\n");
 293                         return err;
 294                 }
 295                 err = vx_inb(chip, RXH) << 16;
 296                 err |= vx_inb(chip, RXM) << 8;
 297                 err |= vx_inb(chip, RXL);
 298                 snd_printd(KERN_DEBUG "msg got error = 0x%x at cmd[0]\n", err);
 299                 err = -(VX_ERR_MASK | err);
 300                 return err;
 301         }
 302
 303         /* Send the other words */
 304         if (rmh->LgCmd > 1) {
 305                 for (i = 1; i < rmh->LgCmd; i++) {
 306                         /* Wait for TX ready */
 307                         if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) {
 308                                 snd_printd(KERN_DEBUG "vx_send_msg: tx_ready error\n");
 309                                 return err;
 310                         }
 311
 312                         /* Write Cmd[i] */
 313                         vx_outb(chip, TXH, (rmh->Cmd[i] >> 16) & 0xff);
 314                         vx_outb(chip, TXM, (rmh->Cmd[i] >> 8) & 0xff);
 315                         vx_outb(chip, TXL, rmh->Cmd[i] & 0xff);
 316
 317                         /* Trigger irq MESS_READ_NEXT */
 318                         if ((err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT)) < 0) {
 319                                 snd_printd(KERN_DEBUG "vx_send_msg: IRQ_READ_NEXT error\n");
 320                                 return err;
 321                         }
 322                 }
 323                 /* Wait for TX empty */
 324                 if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) {
 325                         snd_printd(KERN_DEBUG "vx_send_msg: TX_READY error\n");
 326                         return err;
 327                 }
 328                 /* End of transfer */
 329                 err = vx_transfer_end(chip, IRQ_MESS_READ_END);
 330                 if (err < 0)
 331                         return err;
 332         }
 333
 334         return vx_read_status(chip, rmh);
 335 }
 336
 337
 338 /*
 339  * vx_send_msg - send a DSP message with spinlock
 340  * @rmh: the rmh record to send and receive
 341  *
 342  * returns 0 if successful, or a negative error code.
 343  * see vx_send_msg_nolock().
 344  */
 345 int vx_send_msg(struct vx_core *chip, struct vx_rmh *rmh)
 346 {
 347         unsigned long flags;
 348         int err;
 349
 350         spin_lock_irqsave(&chip->lock, flags);
 351         err = vx_send_msg_nolock(chip, rmh);
 352         spin_unlock_irqrestore(&chip->lock, flags);
 353         return err;
 354 }
 355
 356
 357 /*
 358  * vx_send_rih_nolock - send an RIH to xilinx
 359  * @cmd: the command to send
 360  *
 361  * returns 0 if successful, or a negative error code.
 362  * the error code can be VX-specific, retrieved via vx_get_error().
 363  *
 364  * this function doesn't call spinlock at all.
 365  *
 366  * unlike RMH, no command is sent to DSP.
 367  */
 368 int vx_send_rih_nolock(struct vx_core *chip, int cmd)
 369 {
 370         int err;
 371
 372         if (chip->chip_status & VX_STAT_IS_STALE)
 373                 return -EBUSY;
 374
 375 #if 0
 376         printk(KERN_DEBUG "send_rih: cmd = 0x%x\n", cmd);
 377 #endif
 378         if ((err = vx_reset_chk(chip)) < 0)
 379                 return err;
 380         /* send the IRQ */
 381         if ((err = vx_send_irq_dsp(chip, cmd)) < 0)
 382                 return err;
 383         /* Wait CHK = 1 */
 384         if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
 385                 return err;
 386         /* If error, read RX */
 387         if (vx_inb(chip, ISR) & ISR_ERR) {
 388                 if ((err = vx_wait_for_rx_full(chip)) < 0)
 389                         return err;
 390                 err = vx_inb(chip, RXH) << 16;
 391                 err |= vx_inb(chip, RXM) << 8;
 392                 err |= vx_inb(chip, RXL);
 393                 return -(VX_ERR_MASK | err);
 394         }
 395         return 0;
 396 }
 397
 398
 399 /*
 400  * vx_send_rih - send an RIH with spinlock
 401  * @cmd: the command to send
 402  *
 403  * see vx_send_rih_nolock().
 404  */
 405 int vx_send_rih(struct vx_core *chip, int cmd)
 406 {
 407         unsigned long flags;
 408         int err;
 409
 410         spin_lock_irqsave(&chip->lock, flags);
 411         err = vx_send_rih_nolock(chip, cmd);
 412         spin_unlock_irqrestore(&chip->lock, flags);
 413         return err;
 414 }
 415
 416 #define END_OF_RESET_WAIT_TIME          500     /* us */
 417
 418 /**
 419  * snd_vx_boot_xilinx - boot up the xilinx interface
 420  * @boot: the boot record to load
 421  */
 422 int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *boot)
 423 {
 424         unsigned int i;
 425         int no_fillup = vx_has_new_dsp(chip);
 426
 427         /* check the length of boot image */
 428         snd_assert(boot->size > 0, return -EINVAL);
 429         snd_assert(boot->size % 3 == 0, return -EINVAL);
 430 #if 0
 431         {
 432                 /* more strict check */
 433                 unsigned int c = ((u32)boot->data[0] << 16) | ((u32)boot->data[1] << 8) | boot->data[2];
 434                 snd_assert(boot->size == (c + 2) * 3, return -EINVAL);
 435         }
 436 #endif
 437
 438         /* reset dsp */
 439         vx_reset_dsp(chip);
 440
 441         udelay(END_OF_RESET_WAIT_TIME); /* another wait? */
 442
 443         /* download boot strap */
 444         for (i = 0; i < 0x600; i += 3) {
 445                 if (i >= boot->size) {
 446                         if (no_fillup)
 447                                 break;
 448                         if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) {
 449                                 snd_printk(KERN_ERR "dsp boot failed at %d\n", i);
 450                                 return -EIO;
 451                         }
 452                         vx_outb(chip, TXH, 0);
 453                         vx_outb(chip, TXM, 0);
 454                         vx_outb(chip, TXL, 0);
 455                 } else {
 456                         unsigned char *image = boot->data + i;
 457                         if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) {
 458                                 snd_printk(KERN_ERR "dsp boot failed at %d\n", i);
 459                                 return -EIO;
 460                         }
 461                         vx_outb(chip, TXH, image[0]);
 462                         vx_outb(chip, TXM, image[1]);
 463                         vx_outb(chip, TXL, image[2]);
 464                 }
 465         }
 466         return 0;
 467 }
 468
 469 EXPORT_SYMBOL(snd_vx_load_boot_image);
 470
 471 /*
 472  * vx_test_irq_src - query the source of interrupts
 473  *
 474  * called from irq handler only
 475  */
 476 static int vx_test_irq_src(struct vx_core *chip, unsigned int *ret)
 477 {
 478         int err;
 479
 480         vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT);
 481         spin_lock(&chip->lock);
 482         err = vx_send_msg_nolock(chip, &chip->irq_rmh);
 483         if (err < 0)
 484                 *ret = 0;
 485         else
 486                 *ret = chip->irq_rmh.Stat[0];
 487         spin_unlock(&chip->lock);
 488         return err;
 489 }
 490
 491
 492 /*
 493  * vx_interrupt - soft irq handler
 494  */
 495 static void vx_interrupt(unsigned long private_data)
 496 {
 497         struct vx_core *chip = (struct vx_core *) private_data;
 498         unsigned int events;
 499
 500         if (chip->chip_status & VX_STAT_IS_STALE)
 501                 return;
 502
 503         if (vx_test_irq_src(chip, &events) < 0)
 504                 return;
 505
 506 #if 0
 507         if (events & 0x000800)
 508                 printk(KERN_ERR "DSP Stream underrun ! IRQ events = 0x%x\n", events);
 509 #endif
 510         // printk(KERN_DEBUG "IRQ events = 0x%x\n", events);
 511
 512         /* We must prevent any application using this DSP
 513          * and block any further request until the application
 514          * either unregisters or reloads the DSP
 515          */
 516         if (events & FATAL_DSP_ERROR) {
 517                 snd_printk(KERN_ERR "vx_core: fatal DSP error!!\n");
 518                 return;
 519         }
 520
 521         /* The start on time code conditions are filled (ie the time code
 522          * received by the board is equal to one of those given to it).
 523          */
 524         if (events & TIME_CODE_EVENT_PENDING)
 525                 ; /* so far, nothing to do yet */
 526
 527         /* The frequency has changed on the board (UER mode). */
 528         if (events & FREQUENCY_CHANGE_EVENT_PENDING)
 529                 vx_change_frequency(chip);
 530
 531         /* update the pcm streams */
 532         vx_pcm_update_intr(chip, events);
 533 }
 534
 535
 536 /**
 537  * snd_vx_irq_handler - interrupt handler
 538  */
 539 irqreturn_t snd_vx_irq_handler(int irq, void *dev)
 540 {
 541         struct vx_core *chip = dev;
 542
 543         if (! (chip->chip_status & VX_STAT_CHIP_INIT) ||
 544             (chip->chip_status & VX_STAT_IS_STALE))
 545                 return IRQ_NONE;
 546         if (! vx_test_and_ack(chip))
 547                 tasklet_hi_schedule(&chip->tq);
 548         return IRQ_HANDLED;
 549 }
 550
 551 EXPORT_SYMBOL(snd_vx_irq_handler);
 552
 553 /*
 554  */
 555 static void vx_reset_board(struct vx_core *chip, int cold_reset)
 556 {
 557         snd_assert(chip->ops->reset_board, return);
 558
 559         /* current source, later sync'ed with target */
 560         chip->audio_source = VX_AUDIO_SRC_LINE;
 561         if (cold_reset) {
 562                 chip->audio_source_target = chip->audio_source;
 563                 chip->clock_source = INTERNAL_QUARTZ;
 564                 chip->clock_mode = VX_CLOCK_MODE_AUTO;
 565                 chip->freq = 48000;
 566                 chip->uer_detected = VX_UER_MODE_NOT_PRESENT;
 567                 chip->uer_bits = SNDRV_PCM_DEFAULT_CON_SPDIF;
 568         }
 569
 570         chip->ops->reset_board(chip, cold_reset);
 571
 572         vx_reset_codec(chip, cold_reset);
 573
 574         vx_set_internal_clock(chip, chip->freq);
 575
 576         /* Reset the DSP */
 577         vx_reset_dsp(chip);
 578
 579         if (vx_is_pcmcia(chip)) {
 580                 /* Acknowledge any pending IRQ and reset the MEMIRQ flag. */
 581                 vx_test_and_ack(chip);
 582                 vx_validate_irq(chip, 1);
 583         }
 584
 585         /* init CBits */
 586         vx_set_iec958_status(chip, chip->uer_bits);
 587 }
 588
 589
 590 /*
 591  * proc interface
 592  */
 593
 594 static void vx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 595 {
 596         struct vx_core *chip = entry->private_data;
 597         static char *audio_src_vxp[] = { "Line", "Mic", "Digital" };
 598         static char *audio_src_vx2[] = { "Analog", "Analog", "Digital" };
 599         static char *clock_mode[] = { "Auto", "Internal", "External" };
 600         static char *clock_src[] = { "Internal", "External" };
 601         static char *uer_type[] = { "Consumer", "Professional", "Not Present" };
 602
 603         snd_iprintf(buffer, "%s\n", chip->card->longname);
 604         snd_iprintf(buffer, "Xilinx Firmware: %s\n",
 605                     chip->chip_status & VX_STAT_XILINX_LOADED ? "Loaded" : "No");
 606         snd_iprintf(buffer, "Device Initialized: %s\n",
 607                     chip->chip_status & VX_STAT_DEVICE_INIT ? "Yes" : "No");
 608         snd_iprintf(buffer, "DSP audio info:");
 609         if (chip->audio_info & VX_AUDIO_INFO_REAL_TIME)
 610                 snd_iprintf(buffer, " realtime");
 611         if (chip->audio_info & VX_AUDIO_INFO_OFFLINE)
 612                 snd_iprintf(buffer, " offline");
 613         if (chip->audio_info & VX_AUDIO_INFO_MPEG1)
 614                 snd_iprintf(buffer, " mpeg1");
 615         if (chip->audio_info & VX_AUDIO_INFO_MPEG2)
 616                 snd_iprintf(buffer, " mpeg2");
 617         if (chip->audio_info & VX_AUDIO_INFO_LINEAR_8)
 618                 snd_iprintf(buffer, " linear8");
 619         if (chip->audio_info & VX_AUDIO_INFO_LINEAR_16)
 620                 snd_iprintf(buffer, " linear16");
 621         if (chip->audio_info & VX_AUDIO_INFO_LINEAR_24)
 622                 snd_iprintf(buffer, " linear24");
 623         snd_iprintf(buffer, "\n");
 624         snd_iprintf(buffer, "Input Source: %s\n", vx_is_pcmcia(chip) ?
 625                     audio_src_vxp[chip->audio_source] :
 626                     audio_src_vx2[chip->audio_source]);
 627         snd_iprintf(buffer, "Clock Mode: %s\n", clock_mode[chip->clock_mode]);
 628         snd_iprintf(buffer, "Clock Source: %s\n", clock_src[chip->clock_source]);
 629         snd_iprintf(buffer, "Frequency: %d\n", chip->freq);
 630         snd_iprintf(buffer, "Detected Frequency: %d\n", chip->freq_detected);
 631         snd_iprintf(buffer, "Detected UER type: %s\n", uer_type[chip->uer_detected]);
 632         snd_iprintf(buffer, "Min/Max/Cur IBL: %d/%d/%d (granularity=%d)\n",
 633                     chip->ibl.min_size, chip->ibl.max_size, chip->ibl.size,
 634                     chip->ibl.granularity);
 635 }
 636
 637 static void vx_proc_init(struct vx_core *chip)
 638 {
 639         struct snd_info_entry *entry;
 640
 641         if (! snd_card_proc_new(chip->card, "vx-status", &entry))
 642                 snd_info_set_text_ops(entry, chip, vx_proc_read);
 643 }
 644
 645
 646 /**
 647  * snd_vx_dsp_boot - load the DSP boot
 648  */
 649 int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *boot)
 650 {
 651         int err;
 652         int cold_reset = !(chip->chip_status & VX_STAT_DEVICE_INIT);
 653
 654         vx_reset_board(chip, cold_reset);
 655         vx_validate_irq(chip, 0);
 656
 657         if ((err = snd_vx_load_boot_image(chip, boot)) < 0)
 658                 return err;
 659         msleep(10);
 660
 661         return 0;
 662 }
 663
 664 EXPORT_SYMBOL(snd_vx_dsp_boot);
 665
 666 /**
 667  * snd_vx_dsp_load - load the DSP image
 668  */
 669 int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp)
 670 {
 671         unsigned int i;
 672         int err;
 673         unsigned int csum = 0;
 674         unsigned char *image, *cptr;
 675
 676         snd_assert(dsp->size % 3 == 0, return -EINVAL);
 677
 678         vx_toggle_dac_mute(chip, 1);
 679
 680         /* Transfert data buffer from PC to DSP */
 681         for (i = 0; i < dsp->size; i += 3) {
 682                 image = dsp->data + i;
 683                 /* Wait DSP ready for a new read */
 684                 if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) {
 685                         printk("dsp loading error at position %d\n", i);
 686                         return err;
 687                 }
 688                 cptr = image;
 689                 csum ^= *cptr;
 690                 csum = (csum >> 24) | (csum << 8);
 691                 vx_outb(chip, TXH, *cptr++);
 692                 csum ^= *cptr;
 693                 csum = (csum >> 24) | (csum << 8);
 694                 vx_outb(chip, TXM, *cptr++);
 695                 csum ^= *cptr;
 696                 csum = (csum >> 24) | (csum << 8);
 697                 vx_outb(chip, TXL, *cptr++);
 698         }
 699         snd_printdd(KERN_DEBUG "checksum = 0x%08x\n", csum);
 700
 701         msleep(200);
 702
 703         if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
 704                 return err;
 705
 706         vx_toggle_dac_mute(chip, 0);
 707
 708         vx_test_and_ack(chip);
 709         vx_validate_irq(chip, 1);
 710
 711         return 0;
 712 }
 713
 714 EXPORT_SYMBOL(snd_vx_dsp_load);
 715
 716 #ifdef CONFIG_PM
 717 /*
 718  * suspend
 719  */
 720 int snd_vx_suspend(struct vx_core *chip, pm_message_t state)
 721 {
 722         unsigned int i;
 723
 724         snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
 725         chip->chip_status |= VX_STAT_IN_SUSPEND;
 726         for (i = 0; i < chip->hw->num_codecs; i++)
 727                 snd_pcm_suspend_all(chip->pcm[i]);
 728
 729         return 0;
 730 }
 731
 732 EXPORT_SYMBOL(snd_vx_suspend);
 733
 734 /*
 735  * resume
 736  */
 737 int snd_vx_resume(struct vx_core *chip)
 738 {
 739         int i, err;
 740
 741         chip->chip_status &= ~VX_STAT_CHIP_INIT;
 742
 743         for (i = 0; i < 4; i++) {
 744                 if (! chip->firmware[i])
 745                         continue;
 746                 err = chip->ops->load_dsp(chip, i, chip->firmware[i]);
 747                 if (err < 0) {
 748                         snd_printk(KERN_ERR "vx: firmware resume error at DSP %d\n", i);
 749                         return -EIO;
 750                 }
 751         }
 752
 753         chip->chip_status |= VX_STAT_CHIP_INIT;
 754         chip->chip_status &= ~VX_STAT_IN_SUSPEND;
 755
 756         snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
 757         return 0;
 758 }
 759
 760 EXPORT_SYMBOL(snd_vx_resume);
 761 #endif
 762
 763 /**
 764  * snd_vx_create - constructor for struct vx_core
 765  * @hw: hardware specific record
 766  *
 767  * this function allocates the instance and prepare for the hardware
 768  * initialization.
 769  *
 770  * return the instance pointer if successful, NULL in error.
 771  */
 772 struct vx_core *snd_vx_create(struct snd_card *card, struct snd_vx_hardware *hw,
 773                               struct snd_vx_ops *ops,
 774                               int extra_size)
 775 {
 776         struct vx_core *chip;
 777
 778         snd_assert(card && hw && ops, return NULL);
 779
 780         chip = kzalloc(sizeof(*chip) + extra_size, GFP_KERNEL);
 781         if (! chip) {
 782                 snd_printk(KERN_ERR "vx_core: no memory\n");
 783                 return NULL;
 784         }
 785         spin_lock_init(&chip->lock);
 786         spin_lock_init(&chip->irq_lock);
 787         chip->irq = -1;
 788         chip->hw = hw;
 789         chip->type = hw->type;
 790         chip->ops = ops;
 791         tasklet_init(&chip->tq, vx_interrupt, (unsigned long)chip);
 792         mutex_init(&chip->mixer_mutex);
 793
 794         chip->card = card;
 795         card->private_data = chip;
 796         strcpy(card->driver, hw->name);
 797         sprintf(card->shortname, "Digigram %s", hw->name);
 798
 799         vx_proc_init(chip);
 800
 801         return chip;
 802 }
 803
 804 EXPORT_SYMBOL(snd_vx_create);
 805
 806 /*
 807  * module entries
 808  */
 809 static int __init alsa_vx_core_init(void)
 810 {
 811         return 0;
 812 }
 813
 814 static void __exit alsa_vx_core_exit(void)
 815 {
 816 }
 817
 818 module_init(alsa_vx_core_init)
 819 module_exit(alsa_vx_core_exit)