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 <linux/module.h> 30 #include <sound/core.h> 31 #include <sound/pcm.h> 32 #include <sound/asoundef.h> 33 #include <sound/info.h> 34 #include <asm/io.h> 35 #include <sound/vx_core.h> 36 #include "vx_cmd.h" 37 38 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); 39 MODULE_DESCRIPTION("Common routines for Digigram VX drivers"); 40 MODULE_LICENSE("GPL"); 41 42 43 /* 44 * vx_check_reg_bit - wait for the specified bit is set/reset on a register 45 * @reg: register to check 46 * @mask: bit mask 47 * @bit: resultant bit to be checked 48 * @time: time-out of loop in msec 49 * 50 * returns zero if a bit matches, or a negative error code. 51 */ 52 int snd_vx_check_reg_bit(struct vx_core *chip, int reg, int mask, int bit, int time) 53 { 54 unsigned long end_time = jiffies + (time * HZ + 999) / 1000; 55 #ifdef CONFIG_SND_DEBUG 56 static char *reg_names[VX_REG_MAX] = { 57 "ICR", "CVR", "ISR", "IVR", "RXH", "RXM", "RXL", 58 "DMA", "CDSP", "RFREQ", "RUER/V2", "DATA", "MEMIRQ", 59 "ACQ", "BIT0", "BIT1", "MIC0", "MIC1", "MIC2", 60 "MIC3", "INTCSR", "CNTRL", "GPIOC", 61 "LOFREQ", "HIFREQ", "CSUER", "RUER" 62 }; 63 #endif 64 do { 65 if ((snd_vx_inb(chip, reg) & mask) == bit) 66 return 0; 67 //msleep(10); 68 } while (time_after_eq(end_time, jiffies)); 69 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)); 70 return -EIO; 71 } 72 73 EXPORT_SYMBOL(snd_vx_check_reg_bit); 74 75 /* 76 * vx_send_irq_dsp - set command irq bit 77 * @num: the requested IRQ type, IRQ_XXX 78 * 79 * this triggers the specified IRQ request 80 * returns 0 if successful, or a negative error code. 81 * 82 */ 83 static int vx_send_irq_dsp(struct vx_core *chip, int num) 84 { 85 int nirq; 86 87 /* wait for Hc = 0 */ 88 if (snd_vx_check_reg_bit(chip, VX_CVR, CVR_HC, 0, 200) < 0) 89 return -EIO; 90 91 nirq = num; 92 if (vx_has_new_dsp(chip)) 93 nirq += VXP_IRQ_OFFSET; 94 vx_outb(chip, CVR, (nirq >> 1) | CVR_HC); 95 return 0; 96 } 97 98 99 /* 100 * vx_reset_chk - reset CHK bit on ISR 101 * 102 * returns 0 if successful, or a negative error code. 103 */ 104 static int vx_reset_chk(struct vx_core *chip) 105 { 106 /* Reset irq CHK */ 107 if (vx_send_irq_dsp(chip, IRQ_RESET_CHK) < 0) 108 return -EIO; 109 /* Wait until CHK = 0 */ 110 if (vx_check_isr(chip, ISR_CHK, 0, 200) < 0) 111 return -EIO; 112 return 0; 113 } 114 115 /* 116 * vx_transfer_end - terminate message transfer 117 * @cmd: IRQ message to send (IRQ_MESS_XXX_END) 118 * 119 * returns 0 if successful, or a negative error code. 120 * the error code can be VX-specific, retrieved via vx_get_error(). 121 * NB: call with spinlock held! 122 */ 123 static int vx_transfer_end(struct vx_core *chip, int cmd) 124 { 125 int err; 126 127 if ((err = vx_reset_chk(chip)) < 0) 128 return err; 129 130 /* irq MESS_READ/WRITE_END */ 131 if ((err = vx_send_irq_dsp(chip, cmd)) < 0) 132 return err; 133 134 /* Wait CHK = 1 */ 135 if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 136 return err; 137 138 /* If error, Read RX */ 139 if ((err = vx_inb(chip, ISR)) & ISR_ERR) { 140 if ((err = vx_wait_for_rx_full(chip)) < 0) { 141 snd_printd(KERN_DEBUG "transfer_end: error in rx_full\n"); 142 return err; 143 } 144 err = vx_inb(chip, RXH) << 16; 145 err |= vx_inb(chip, RXM) << 8; 146 err |= vx_inb(chip, RXL); 147 snd_printd(KERN_DEBUG "transfer_end: error = 0x%x\n", err); 148 return -(VX_ERR_MASK | err); 149 } 150 return 0; 151 } 152 153 /* 154 * vx_read_status - return the status rmh 155 * @rmh: rmh record to store the status 156 * 157 * returns 0 if successful, or a negative error code. 158 * the error code can be VX-specific, retrieved via vx_get_error(). 159 * NB: call with spinlock held! 160 */ 161 static int vx_read_status(struct vx_core *chip, struct vx_rmh *rmh) 162 { 163 int i, err, val, size; 164 165 /* no read necessary? */ 166 if (rmh->DspStat == RMH_SSIZE_FIXED && rmh->LgStat == 0) 167 return 0; 168 169 /* Wait for RX full (with timeout protection) 170 * The first word of status is in RX 171 */ 172 err = vx_wait_for_rx_full(chip); 173 if (err < 0) 174 return err; 175 176 /* Read RX */ 177 val = vx_inb(chip, RXH) << 16; 178 val |= vx_inb(chip, RXM) << 8; 179 val |= vx_inb(chip, RXL); 180 181 /* If status given by DSP, let's decode its size */ 182 switch (rmh->DspStat) { 183 case RMH_SSIZE_ARG: 184 size = val & 0xff; 185 rmh->Stat[0] = val & 0xffff00; 186 rmh->LgStat = size + 1; 187 break; 188 case RMH_SSIZE_MASK: 189 /* Let's count the arg numbers from a mask */ 190 rmh->Stat[0] = val; 191 size = 0; 192 while (val) { 193 if (val & 0x01) 194 size++; 195 val >>= 1; 196 } 197 rmh->LgStat = size + 1; 198 break; 199 default: 200 /* else retrieve the status length given by the driver */ 201 size = rmh->LgStat; 202 rmh->Stat[0] = val; /* Val is the status 1st word */ 203 size--; /* hence adjust remaining length */ 204 break; 205 } 206 207 if (size < 1) 208 return 0; 209 if (snd_BUG_ON(size > SIZE_MAX_STATUS)) 210 return -EINVAL; 211 212 for (i = 1; i <= size; i++) { 213 /* trigger an irq MESS_WRITE_NEXT */ 214 err = vx_send_irq_dsp(chip, IRQ_MESS_WRITE_NEXT); 215 if (err < 0) 216 return err; 217 /* Wait for RX full (with timeout protection) */ 218 err = vx_wait_for_rx_full(chip); 219 if (err < 0) 220 return err; 221 rmh->Stat[i] = vx_inb(chip, RXH) << 16; 222 rmh->Stat[i] |= vx_inb(chip, RXM) << 8; 223 rmh->Stat[i] |= vx_inb(chip, RXL); 224 } 225 226 return vx_transfer_end(chip, IRQ_MESS_WRITE_END); 227 } 228 229 230 #define MASK_MORE_THAN_1_WORD_COMMAND 0x00008000 231 #define MASK_1_WORD_COMMAND 0x00ff7fff 232 233 /* 234 * vx_send_msg_nolock - send a DSP message and read back the status 235 * @rmh: the rmh record to send and receive 236 * 237 * returns 0 if successful, or a negative error code. 238 * the error code can be VX-specific, retrieved via vx_get_error(). 239 * 240 * this function doesn't call spinlock at all. 241 */ 242 int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh) 243 { 244 int i, err; 245 246 if (chip->chip_status & VX_STAT_IS_STALE) 247 return -EBUSY; 248 249 if ((err = vx_reset_chk(chip)) < 0) { 250 snd_printd(KERN_DEBUG "vx_send_msg: vx_reset_chk error\n"); 251 return err; 252 } 253 254 #if 0 255 printk(KERN_DEBUG "rmh: cmd = 0x%06x, length = %d, stype = %d\n", 256 rmh->Cmd[0], rmh->LgCmd, rmh->DspStat); 257 if (rmh->LgCmd > 1) { 258 printk(KERN_DEBUG " "); 259 for (i = 1; i < rmh->LgCmd; i++) 260 printk("0x%06x ", rmh->Cmd[i]); 261 printk("\n"); 262 } 263 #endif 264 /* Check bit M is set according to length of the command */ 265 if (rmh->LgCmd > 1) 266 rmh->Cmd[0] |= MASK_MORE_THAN_1_WORD_COMMAND; 267 else 268 rmh->Cmd[0] &= MASK_1_WORD_COMMAND; 269 270 /* Wait for TX empty */ 271 if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { 272 snd_printd(KERN_DEBUG "vx_send_msg: wait tx empty error\n"); 273 return err; 274 } 275 276 /* Write Cmd[0] */ 277 vx_outb(chip, TXH, (rmh->Cmd[0] >> 16) & 0xff); 278 vx_outb(chip, TXM, (rmh->Cmd[0] >> 8) & 0xff); 279 vx_outb(chip, TXL, rmh->Cmd[0] & 0xff); 280 281 /* Trigger irq MESSAGE */ 282 if ((err = vx_send_irq_dsp(chip, IRQ_MESSAGE)) < 0) { 283 snd_printd(KERN_DEBUG "vx_send_msg: send IRQ_MESSAGE error\n"); 284 return err; 285 } 286 287 /* Wait for CHK = 1 */ 288 if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 289 return err; 290 291 /* If error, get error value from RX */ 292 if (vx_inb(chip, ISR) & ISR_ERR) { 293 if ((err = vx_wait_for_rx_full(chip)) < 0) { 294 snd_printd(KERN_DEBUG "vx_send_msg: rx_full read error\n"); 295 return err; 296 } 297 err = vx_inb(chip, RXH) << 16; 298 err |= vx_inb(chip, RXM) << 8; 299 err |= vx_inb(chip, RXL); 300 snd_printd(KERN_DEBUG "msg got error = 0x%x at cmd[0]\n", err); 301 err = -(VX_ERR_MASK | err); 302 return err; 303 } 304 305 /* Send the other words */ 306 if (rmh->LgCmd > 1) { 307 for (i = 1; i < rmh->LgCmd; i++) { 308 /* Wait for TX ready */ 309 if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) { 310 snd_printd(KERN_DEBUG "vx_send_msg: tx_ready error\n"); 311 return err; 312 } 313 314 /* Write Cmd[i] */ 315 vx_outb(chip, TXH, (rmh->Cmd[i] >> 16) & 0xff); 316 vx_outb(chip, TXM, (rmh->Cmd[i] >> 8) & 0xff); 317 vx_outb(chip, TXL, rmh->Cmd[i] & 0xff); 318 319 /* Trigger irq MESS_READ_NEXT */ 320 if ((err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT)) < 0) { 321 snd_printd(KERN_DEBUG "vx_send_msg: IRQ_READ_NEXT error\n"); 322 return err; 323 } 324 } 325 /* Wait for TX empty */ 326 if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) { 327 snd_printd(KERN_DEBUG "vx_send_msg: TX_READY error\n"); 328 return err; 329 } 330 /* End of transfer */ 331 err = vx_transfer_end(chip, IRQ_MESS_READ_END); 332 if (err < 0) 333 return err; 334 } 335 336 return vx_read_status(chip, rmh); 337 } 338 339 340 /* 341 * vx_send_msg - send a DSP message with spinlock 342 * @rmh: the rmh record to send and receive 343 * 344 * returns 0 if successful, or a negative error code. 345 * see vx_send_msg_nolock(). 346 */ 347 int vx_send_msg(struct vx_core *chip, struct vx_rmh *rmh) 348 { 349 unsigned long flags; 350 int err; 351 352 spin_lock_irqsave(&chip->lock, flags); 353 err = vx_send_msg_nolock(chip, rmh); 354 spin_unlock_irqrestore(&chip->lock, flags); 355 return err; 356 } 357 358 359 /* 360 * vx_send_rih_nolock - send an RIH to xilinx 361 * @cmd: the command to send 362 * 363 * returns 0 if successful, or a negative error code. 364 * the error code can be VX-specific, retrieved via vx_get_error(). 365 * 366 * this function doesn't call spinlock at all. 367 * 368 * unlike RMH, no command is sent to DSP. 369 */ 370 int vx_send_rih_nolock(struct vx_core *chip, int cmd) 371 { 372 int err; 373 374 if (chip->chip_status & VX_STAT_IS_STALE) 375 return -EBUSY; 376 377 #if 0 378 printk(KERN_DEBUG "send_rih: cmd = 0x%x\n", cmd); 379 #endif 380 if ((err = vx_reset_chk(chip)) < 0) 381 return err; 382 /* send the IRQ */ 383 if ((err = vx_send_irq_dsp(chip, cmd)) < 0) 384 return err; 385 /* Wait CHK = 1 */ 386 if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 387 return err; 388 /* If error, read RX */ 389 if (vx_inb(chip, ISR) & ISR_ERR) { 390 if ((err = vx_wait_for_rx_full(chip)) < 0) 391 return err; 392 err = vx_inb(chip, RXH) << 16; 393 err |= vx_inb(chip, RXM) << 8; 394 err |= vx_inb(chip, RXL); 395 return -(VX_ERR_MASK | err); 396 } 397 return 0; 398 } 399 400 401 /* 402 * vx_send_rih - send an RIH with spinlock 403 * @cmd: the command to send 404 * 405 * see vx_send_rih_nolock(). 406 */ 407 int vx_send_rih(struct vx_core *chip, int cmd) 408 { 409 unsigned long flags; 410 int err; 411 412 spin_lock_irqsave(&chip->lock, flags); 413 err = vx_send_rih_nolock(chip, cmd); 414 spin_unlock_irqrestore(&chip->lock, flags); 415 return err; 416 } 417 418 #define END_OF_RESET_WAIT_TIME 500 /* us */ 419 420 /** 421 * snd_vx_boot_xilinx - boot up the xilinx interface 422 * @boot: the boot record to load 423 */ 424 int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *boot) 425 { 426 unsigned int i; 427 int no_fillup = vx_has_new_dsp(chip); 428 429 /* check the length of boot image */ 430 if (boot->size <= 0) 431 return -EINVAL; 432 if (boot->size % 3) 433 return -EINVAL; 434 #if 0 435 { 436 /* more strict check */ 437 unsigned int c = ((u32)boot->data[0] << 16) | ((u32)boot->data[1] << 8) | boot->data[2]; 438 if (boot->size != (c + 2) * 3) 439 return -EINVAL; 440 } 441 #endif 442 443 /* reset dsp */ 444 vx_reset_dsp(chip); 445 446 udelay(END_OF_RESET_WAIT_TIME); /* another wait? */ 447 448 /* download boot strap */ 449 for (i = 0; i < 0x600; i += 3) { 450 if (i >= boot->size) { 451 if (no_fillup) 452 break; 453 if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { 454 snd_printk(KERN_ERR "dsp boot failed at %d\n", i); 455 return -EIO; 456 } 457 vx_outb(chip, TXH, 0); 458 vx_outb(chip, TXM, 0); 459 vx_outb(chip, TXL, 0); 460 } else { 461 const unsigned char *image = boot->data + i; 462 if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { 463 snd_printk(KERN_ERR "dsp boot failed at %d\n", i); 464 return -EIO; 465 } 466 vx_outb(chip, TXH, image[0]); 467 vx_outb(chip, TXM, image[1]); 468 vx_outb(chip, TXL, image[2]); 469 } 470 } 471 return 0; 472 } 473 474 EXPORT_SYMBOL(snd_vx_load_boot_image); 475 476 /* 477 * vx_test_irq_src - query the source of interrupts 478 * 479 * called from irq handler only 480 */ 481 static int vx_test_irq_src(struct vx_core *chip, unsigned int *ret) 482 { 483 int err; 484 485 vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT); 486 spin_lock(&chip->lock); 487 err = vx_send_msg_nolock(chip, &chip->irq_rmh); 488 if (err < 0) 489 *ret = 0; 490 else 491 *ret = chip->irq_rmh.Stat[0]; 492 spin_unlock(&chip->lock); 493 return err; 494 } 495 496 497 /* 498 * vx_interrupt - soft irq handler 499 */ 500 static void vx_interrupt(unsigned long private_data) 501 { 502 struct vx_core *chip = (struct vx_core *) private_data; 503 unsigned int events; 504 505 if (chip->chip_status & VX_STAT_IS_STALE) 506 return; 507 508 if (vx_test_irq_src(chip, &events) < 0) 509 return; 510 511 #if 0 512 if (events & 0x000800) 513 printk(KERN_ERR "DSP Stream underrun ! IRQ events = 0x%x\n", events); 514 #endif 515 // printk(KERN_DEBUG "IRQ events = 0x%x\n", events); 516 517 /* We must prevent any application using this DSP 518 * and block any further request until the application 519 * either unregisters or reloads the DSP 520 */ 521 if (events & FATAL_DSP_ERROR) { 522 snd_printk(KERN_ERR "vx_core: fatal DSP error!!\n"); 523 return; 524 } 525 526 /* The start on time code conditions are filled (ie the time code 527 * received by the board is equal to one of those given to it). 528 */ 529 if (events & TIME_CODE_EVENT_PENDING) 530 ; /* so far, nothing to do yet */ 531 532 /* The frequency has changed on the board (UER mode). */ 533 if (events & FREQUENCY_CHANGE_EVENT_PENDING) 534 vx_change_frequency(chip); 535 536 /* update the pcm streams */ 537 vx_pcm_update_intr(chip, events); 538 } 539 540 541 /** 542 * snd_vx_irq_handler - interrupt handler 543 */ 544 irqreturn_t snd_vx_irq_handler(int irq, void *dev) 545 { 546 struct vx_core *chip = dev; 547 548 if (! (chip->chip_status & VX_STAT_CHIP_INIT) || 549 (chip->chip_status & VX_STAT_IS_STALE)) 550 return IRQ_NONE; 551 if (! vx_test_and_ack(chip)) 552 tasklet_schedule(&chip->tq); 553 return IRQ_HANDLED; 554 } 555 556 EXPORT_SYMBOL(snd_vx_irq_handler); 557 558 /* 559 */ 560 static void vx_reset_board(struct vx_core *chip, int cold_reset) 561 { 562 if (snd_BUG_ON(!chip->ops->reset_board)) 563 return; 564 565 /* current source, later sync'ed with target */ 566 chip->audio_source = VX_AUDIO_SRC_LINE; 567 if (cold_reset) { 568 chip->audio_source_target = chip->audio_source; 569 chip->clock_source = INTERNAL_QUARTZ; 570 chip->clock_mode = VX_CLOCK_MODE_AUTO; 571 chip->freq = 48000; 572 chip->uer_detected = VX_UER_MODE_NOT_PRESENT; 573 chip->uer_bits = SNDRV_PCM_DEFAULT_CON_SPDIF; 574 } 575 576 chip->ops->reset_board(chip, cold_reset); 577 578 vx_reset_codec(chip, cold_reset); 579 580 vx_set_internal_clock(chip, chip->freq); 581 582 /* Reset the DSP */ 583 vx_reset_dsp(chip); 584 585 if (vx_is_pcmcia(chip)) { 586 /* Acknowledge any pending IRQ and reset the MEMIRQ flag. */ 587 vx_test_and_ack(chip); 588 vx_validate_irq(chip, 1); 589 } 590 591 /* init CBits */ 592 vx_set_iec958_status(chip, chip->uer_bits); 593 } 594 595 596 /* 597 * proc interface 598 */ 599 600 static void vx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) 601 { 602 struct vx_core *chip = entry->private_data; 603 static char *audio_src_vxp[] = { "Line", "Mic", "Digital" }; 604 static char *audio_src_vx2[] = { "Analog", "Analog", "Digital" }; 605 static char *clock_mode[] = { "Auto", "Internal", "External" }; 606 static char *clock_src[] = { "Internal", "External" }; 607 static char *uer_type[] = { "Consumer", "Professional", "Not Present" }; 608 609 snd_iprintf(buffer, "%s\n", chip->card->longname); 610 snd_iprintf(buffer, "Xilinx Firmware: %s\n", 611 chip->chip_status & VX_STAT_XILINX_LOADED ? "Loaded" : "No"); 612 snd_iprintf(buffer, "Device Initialized: %s\n", 613 chip->chip_status & VX_STAT_DEVICE_INIT ? "Yes" : "No"); 614 snd_iprintf(buffer, "DSP audio info:"); 615 if (chip->audio_info & VX_AUDIO_INFO_REAL_TIME) 616 snd_iprintf(buffer, " realtime"); 617 if (chip->audio_info & VX_AUDIO_INFO_OFFLINE) 618 snd_iprintf(buffer, " offline"); 619 if (chip->audio_info & VX_AUDIO_INFO_MPEG1) 620 snd_iprintf(buffer, " mpeg1"); 621 if (chip->audio_info & VX_AUDIO_INFO_MPEG2) 622 snd_iprintf(buffer, " mpeg2"); 623 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_8) 624 snd_iprintf(buffer, " linear8"); 625 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_16) 626 snd_iprintf(buffer, " linear16"); 627 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_24) 628 snd_iprintf(buffer, " linear24"); 629 snd_iprintf(buffer, "\n"); 630 snd_iprintf(buffer, "Input Source: %s\n", vx_is_pcmcia(chip) ? 631 audio_src_vxp[chip->audio_source] : 632 audio_src_vx2[chip->audio_source]); 633 snd_iprintf(buffer, "Clock Mode: %s\n", clock_mode[chip->clock_mode]); 634 snd_iprintf(buffer, "Clock Source: %s\n", clock_src[chip->clock_source]); 635 snd_iprintf(buffer, "Frequency: %d\n", chip->freq); 636 snd_iprintf(buffer, "Detected Frequency: %d\n", chip->freq_detected); 637 snd_iprintf(buffer, "Detected UER type: %s\n", uer_type[chip->uer_detected]); 638 snd_iprintf(buffer, "Min/Max/Cur IBL: %d/%d/%d (granularity=%d)\n", 639 chip->ibl.min_size, chip->ibl.max_size, chip->ibl.size, 640 chip->ibl.granularity); 641 } 642 643 static void vx_proc_init(struct vx_core *chip) 644 { 645 struct snd_info_entry *entry; 646 647 if (! snd_card_proc_new(chip->card, "vx-status", &entry)) 648 snd_info_set_text_ops(entry, chip, vx_proc_read); 649 } 650 651 652 /** 653 * snd_vx_dsp_boot - load the DSP boot 654 */ 655 int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *boot) 656 { 657 int err; 658 int cold_reset = !(chip->chip_status & VX_STAT_DEVICE_INIT); 659 660 vx_reset_board(chip, cold_reset); 661 vx_validate_irq(chip, 0); 662 663 if ((err = snd_vx_load_boot_image(chip, boot)) < 0) 664 return err; 665 msleep(10); 666 667 return 0; 668 } 669 670 EXPORT_SYMBOL(snd_vx_dsp_boot); 671 672 /** 673 * snd_vx_dsp_load - load the DSP image 674 */ 675 int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp) 676 { 677 unsigned int i; 678 int err; 679 unsigned int csum = 0; 680 const unsigned char *image, *cptr; 681 682 if (dsp->size % 3) 683 return -EINVAL; 684 685 vx_toggle_dac_mute(chip, 1); 686 687 /* Transfert data buffer from PC to DSP */ 688 for (i = 0; i < dsp->size; i += 3) { 689 image = dsp->data + i; 690 /* Wait DSP ready for a new read */ 691 if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { 692 printk(KERN_ERR 693 "dsp loading error at position %d\n", i); 694 return err; 695 } 696 cptr = image; 697 csum ^= *cptr; 698 csum = (csum >> 24) | (csum << 8); 699 vx_outb(chip, TXH, *cptr++); 700 csum ^= *cptr; 701 csum = (csum >> 24) | (csum << 8); 702 vx_outb(chip, TXM, *cptr++); 703 csum ^= *cptr; 704 csum = (csum >> 24) | (csum << 8); 705 vx_outb(chip, TXL, *cptr++); 706 } 707 snd_printdd(KERN_DEBUG "checksum = 0x%08x\n", csum); 708 709 msleep(200); 710 711 if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 712 return err; 713 714 vx_toggle_dac_mute(chip, 0); 715 716 vx_test_and_ack(chip); 717 vx_validate_irq(chip, 1); 718 719 return 0; 720 } 721 722 EXPORT_SYMBOL(snd_vx_dsp_load); 723 724 #ifdef CONFIG_PM 725 /* 726 * suspend 727 */ 728 int snd_vx_suspend(struct vx_core *chip) 729 { 730 unsigned int i; 731 732 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); 733 chip->chip_status |= VX_STAT_IN_SUSPEND; 734 for (i = 0; i < chip->hw->num_codecs; i++) 735 snd_pcm_suspend_all(chip->pcm[i]); 736 737 return 0; 738 } 739 740 EXPORT_SYMBOL(snd_vx_suspend); 741 742 /* 743 * resume 744 */ 745 int snd_vx_resume(struct vx_core *chip) 746 { 747 int i, err; 748 749 chip->chip_status &= ~VX_STAT_CHIP_INIT; 750 751 for (i = 0; i < 4; i++) { 752 if (! chip->firmware[i]) 753 continue; 754 err = chip->ops->load_dsp(chip, i, chip->firmware[i]); 755 if (err < 0) { 756 snd_printk(KERN_ERR "vx: firmware resume error at DSP %d\n", i); 757 return -EIO; 758 } 759 } 760 761 chip->chip_status |= VX_STAT_CHIP_INIT; 762 chip->chip_status &= ~VX_STAT_IN_SUSPEND; 763 764 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); 765 return 0; 766 } 767 768 EXPORT_SYMBOL(snd_vx_resume); 769 #endif 770 771 /** 772 * snd_vx_create - constructor for struct vx_core 773 * @hw: hardware specific record 774 * 775 * this function allocates the instance and prepare for the hardware 776 * initialization. 777 * 778 * return the instance pointer if successful, NULL in error. 779 */ 780 struct vx_core *snd_vx_create(struct snd_card *card, struct snd_vx_hardware *hw, 781 struct snd_vx_ops *ops, 782 int extra_size) 783 { 784 struct vx_core *chip; 785 786 if (snd_BUG_ON(!card || !hw || !ops)) 787 return NULL; 788 789 chip = kzalloc(sizeof(*chip) + extra_size, GFP_KERNEL); 790 if (! chip) { 791 snd_printk(KERN_ERR "vx_core: no memory\n"); 792 return NULL; 793 } 794 spin_lock_init(&chip->lock); 795 spin_lock_init(&chip->irq_lock); 796 chip->irq = -1; 797 chip->hw = hw; 798 chip->type = hw->type; 799 chip->ops = ops; 800 tasklet_init(&chip->tq, vx_interrupt, (unsigned long)chip); 801 mutex_init(&chip->mixer_mutex); 802 803 chip->card = card; 804 card->private_data = chip; 805 strcpy(card->driver, hw->name); 806 sprintf(card->shortname, "Digigram %s", hw->name); 807 808 vx_proc_init(chip); 809 810 return chip; 811 } 812 813 EXPORT_SYMBOL(snd_vx_create); 814 815 /* 816 * module entries 817 */ 818 static int __init alsa_vx_core_init(void) 819 { 820 return 0; 821 } 822 823 static void __exit alsa_vx_core_exit(void) 824 { 825 } 826 827 module_init(alsa_vx_core_init) 828 module_exit(alsa_vx_core_exit) 829