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 if (snd_BUG_ON(size > SIZE_MAX_STATUS)) 209 return -EINVAL; 210 211 for (i = 1; i <= size; i++) { 212 /* trigger an irq MESS_WRITE_NEXT */ 213 err = vx_send_irq_dsp(chip, IRQ_MESS_WRITE_NEXT); 214 if (err < 0) 215 return err; 216 /* Wait for RX full (with timeout protection) */ 217 err = vx_wait_for_rx_full(chip); 218 if (err < 0) 219 return err; 220 rmh->Stat[i] = vx_inb(chip, RXH) << 16; 221 rmh->Stat[i] |= vx_inb(chip, RXM) << 8; 222 rmh->Stat[i] |= vx_inb(chip, RXL); 223 } 224 225 return vx_transfer_end(chip, IRQ_MESS_WRITE_END); 226 } 227 228 229 #define MASK_MORE_THAN_1_WORD_COMMAND 0x00008000 230 #define MASK_1_WORD_COMMAND 0x00ff7fff 231 232 /* 233 * vx_send_msg_nolock - send a DSP message and read back the status 234 * @rmh: the rmh record to send and receive 235 * 236 * returns 0 if successful, or a negative error code. 237 * the error code can be VX-specific, retrieved via vx_get_error(). 238 * 239 * this function doesn't call spinlock at all. 240 */ 241 int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh) 242 { 243 int i, err; 244 245 if (chip->chip_status & VX_STAT_IS_STALE) 246 return -EBUSY; 247 248 if ((err = vx_reset_chk(chip)) < 0) { 249 snd_printd(KERN_DEBUG "vx_send_msg: vx_reset_chk error\n"); 250 return err; 251 } 252 253 #if 0 254 printk(KERN_DEBUG "rmh: cmd = 0x%06x, length = %d, stype = %d\n", 255 rmh->Cmd[0], rmh->LgCmd, rmh->DspStat); 256 if (rmh->LgCmd > 1) { 257 printk(KERN_DEBUG " "); 258 for (i = 1; i < rmh->LgCmd; i++) 259 printk("0x%06x ", rmh->Cmd[i]); 260 printk("\n"); 261 } 262 #endif 263 /* Check bit M is set according to length of the command */ 264 if (rmh->LgCmd > 1) 265 rmh->Cmd[0] |= MASK_MORE_THAN_1_WORD_COMMAND; 266 else 267 rmh->Cmd[0] &= MASK_1_WORD_COMMAND; 268 269 /* Wait for TX empty */ 270 if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { 271 snd_printd(KERN_DEBUG "vx_send_msg: wait tx empty error\n"); 272 return err; 273 } 274 275 /* Write Cmd[0] */ 276 vx_outb(chip, TXH, (rmh->Cmd[0] >> 16) & 0xff); 277 vx_outb(chip, TXM, (rmh->Cmd[0] >> 8) & 0xff); 278 vx_outb(chip, TXL, rmh->Cmd[0] & 0xff); 279 280 /* Trigger irq MESSAGE */ 281 if ((err = vx_send_irq_dsp(chip, IRQ_MESSAGE)) < 0) { 282 snd_printd(KERN_DEBUG "vx_send_msg: send IRQ_MESSAGE error\n"); 283 return err; 284 } 285 286 /* Wait for CHK = 1 */ 287 if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 288 return err; 289 290 /* If error, get error value from RX */ 291 if (vx_inb(chip, ISR) & ISR_ERR) { 292 if ((err = vx_wait_for_rx_full(chip)) < 0) { 293 snd_printd(KERN_DEBUG "vx_send_msg: rx_full read error\n"); 294 return err; 295 } 296 err = vx_inb(chip, RXH) << 16; 297 err |= vx_inb(chip, RXM) << 8; 298 err |= vx_inb(chip, RXL); 299 snd_printd(KERN_DEBUG "msg got error = 0x%x at cmd[0]\n", err); 300 err = -(VX_ERR_MASK | err); 301 return err; 302 } 303 304 /* Send the other words */ 305 if (rmh->LgCmd > 1) { 306 for (i = 1; i < rmh->LgCmd; i++) { 307 /* Wait for TX ready */ 308 if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) { 309 snd_printd(KERN_DEBUG "vx_send_msg: tx_ready error\n"); 310 return err; 311 } 312 313 /* Write Cmd[i] */ 314 vx_outb(chip, TXH, (rmh->Cmd[i] >> 16) & 0xff); 315 vx_outb(chip, TXM, (rmh->Cmd[i] >> 8) & 0xff); 316 vx_outb(chip, TXL, rmh->Cmd[i] & 0xff); 317 318 /* Trigger irq MESS_READ_NEXT */ 319 if ((err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT)) < 0) { 320 snd_printd(KERN_DEBUG "vx_send_msg: IRQ_READ_NEXT error\n"); 321 return err; 322 } 323 } 324 /* Wait for TX empty */ 325 if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) { 326 snd_printd(KERN_DEBUG "vx_send_msg: TX_READY error\n"); 327 return err; 328 } 329 /* End of transfer */ 330 err = vx_transfer_end(chip, IRQ_MESS_READ_END); 331 if (err < 0) 332 return err; 333 } 334 335 return vx_read_status(chip, rmh); 336 } 337 338 339 /* 340 * vx_send_msg - send a DSP message with spinlock 341 * @rmh: the rmh record to send and receive 342 * 343 * returns 0 if successful, or a negative error code. 344 * see vx_send_msg_nolock(). 345 */ 346 int vx_send_msg(struct vx_core *chip, struct vx_rmh *rmh) 347 { 348 unsigned long flags; 349 int err; 350 351 spin_lock_irqsave(&chip->lock, flags); 352 err = vx_send_msg_nolock(chip, rmh); 353 spin_unlock_irqrestore(&chip->lock, flags); 354 return err; 355 } 356 357 358 /* 359 * vx_send_rih_nolock - send an RIH to xilinx 360 * @cmd: the command to send 361 * 362 * returns 0 if successful, or a negative error code. 363 * the error code can be VX-specific, retrieved via vx_get_error(). 364 * 365 * this function doesn't call spinlock at all. 366 * 367 * unlike RMH, no command is sent to DSP. 368 */ 369 int vx_send_rih_nolock(struct vx_core *chip, int cmd) 370 { 371 int err; 372 373 if (chip->chip_status & VX_STAT_IS_STALE) 374 return -EBUSY; 375 376 #if 0 377 printk(KERN_DEBUG "send_rih: cmd = 0x%x\n", cmd); 378 #endif 379 if ((err = vx_reset_chk(chip)) < 0) 380 return err; 381 /* send the IRQ */ 382 if ((err = vx_send_irq_dsp(chip, cmd)) < 0) 383 return err; 384 /* Wait CHK = 1 */ 385 if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 386 return err; 387 /* If error, read RX */ 388 if (vx_inb(chip, ISR) & ISR_ERR) { 389 if ((err = vx_wait_for_rx_full(chip)) < 0) 390 return err; 391 err = vx_inb(chip, RXH) << 16; 392 err |= vx_inb(chip, RXM) << 8; 393 err |= vx_inb(chip, RXL); 394 return -(VX_ERR_MASK | err); 395 } 396 return 0; 397 } 398 399 400 /* 401 * vx_send_rih - send an RIH with spinlock 402 * @cmd: the command to send 403 * 404 * see vx_send_rih_nolock(). 405 */ 406 int vx_send_rih(struct vx_core *chip, int cmd) 407 { 408 unsigned long flags; 409 int err; 410 411 spin_lock_irqsave(&chip->lock, flags); 412 err = vx_send_rih_nolock(chip, cmd); 413 spin_unlock_irqrestore(&chip->lock, flags); 414 return err; 415 } 416 417 #define END_OF_RESET_WAIT_TIME 500 /* us */ 418 419 /** 420 * snd_vx_boot_xilinx - boot up the xilinx interface 421 * @boot: the boot record to load 422 */ 423 int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *boot) 424 { 425 unsigned int i; 426 int no_fillup = vx_has_new_dsp(chip); 427 428 /* check the length of boot image */ 429 if (boot->size <= 0) 430 return -EINVAL; 431 if (boot->size % 3) 432 return -EINVAL; 433 #if 0 434 { 435 /* more strict check */ 436 unsigned int c = ((u32)boot->data[0] << 16) | ((u32)boot->data[1] << 8) | boot->data[2]; 437 if (boot->size != (c + 2) * 3) 438 return -EINVAL; 439 } 440 #endif 441 442 /* reset dsp */ 443 vx_reset_dsp(chip); 444 445 udelay(END_OF_RESET_WAIT_TIME); /* another wait? */ 446 447 /* download boot strap */ 448 for (i = 0; i < 0x600; i += 3) { 449 if (i >= boot->size) { 450 if (no_fillup) 451 break; 452 if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { 453 snd_printk(KERN_ERR "dsp boot failed at %d\n", i); 454 return -EIO; 455 } 456 vx_outb(chip, TXH, 0); 457 vx_outb(chip, TXM, 0); 458 vx_outb(chip, TXL, 0); 459 } else { 460 const unsigned char *image = boot->data + i; 461 if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { 462 snd_printk(KERN_ERR "dsp boot failed at %d\n", i); 463 return -EIO; 464 } 465 vx_outb(chip, TXH, image[0]); 466 vx_outb(chip, TXM, image[1]); 467 vx_outb(chip, TXL, image[2]); 468 } 469 } 470 return 0; 471 } 472 473 EXPORT_SYMBOL(snd_vx_load_boot_image); 474 475 /* 476 * vx_test_irq_src - query the source of interrupts 477 * 478 * called from irq handler only 479 */ 480 static int vx_test_irq_src(struct vx_core *chip, unsigned int *ret) 481 { 482 int err; 483 484 vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT); 485 spin_lock(&chip->lock); 486 err = vx_send_msg_nolock(chip, &chip->irq_rmh); 487 if (err < 0) 488 *ret = 0; 489 else 490 *ret = chip->irq_rmh.Stat[0]; 491 spin_unlock(&chip->lock); 492 return err; 493 } 494 495 496 /* 497 * vx_interrupt - soft irq handler 498 */ 499 static void vx_interrupt(unsigned long private_data) 500 { 501 struct vx_core *chip = (struct vx_core *) private_data; 502 unsigned int events; 503 504 if (chip->chip_status & VX_STAT_IS_STALE) 505 return; 506 507 if (vx_test_irq_src(chip, &events) < 0) 508 return; 509 510 #if 0 511 if (events & 0x000800) 512 printk(KERN_ERR "DSP Stream underrun ! IRQ events = 0x%x\n", events); 513 #endif 514 // printk(KERN_DEBUG "IRQ events = 0x%x\n", events); 515 516 /* We must prevent any application using this DSP 517 * and block any further request until the application 518 * either unregisters or reloads the DSP 519 */ 520 if (events & FATAL_DSP_ERROR) { 521 snd_printk(KERN_ERR "vx_core: fatal DSP error!!\n"); 522 return; 523 } 524 525 /* The start on time code conditions are filled (ie the time code 526 * received by the board is equal to one of those given to it). 527 */ 528 if (events & TIME_CODE_EVENT_PENDING) 529 ; /* so far, nothing to do yet */ 530 531 /* The frequency has changed on the board (UER mode). */ 532 if (events & FREQUENCY_CHANGE_EVENT_PENDING) 533 vx_change_frequency(chip); 534 535 /* update the pcm streams */ 536 vx_pcm_update_intr(chip, events); 537 } 538 539 540 /** 541 * snd_vx_irq_handler - interrupt handler 542 */ 543 irqreturn_t snd_vx_irq_handler(int irq, void *dev) 544 { 545 struct vx_core *chip = dev; 546 547 if (! (chip->chip_status & VX_STAT_CHIP_INIT) || 548 (chip->chip_status & VX_STAT_IS_STALE)) 549 return IRQ_NONE; 550 if (! vx_test_and_ack(chip)) 551 tasklet_schedule(&chip->tq); 552 return IRQ_HANDLED; 553 } 554 555 EXPORT_SYMBOL(snd_vx_irq_handler); 556 557 /* 558 */ 559 static void vx_reset_board(struct vx_core *chip, int cold_reset) 560 { 561 if (snd_BUG_ON(!chip->ops->reset_board)) 562 return; 563 564 /* current source, later sync'ed with target */ 565 chip->audio_source = VX_AUDIO_SRC_LINE; 566 if (cold_reset) { 567 chip->audio_source_target = chip->audio_source; 568 chip->clock_source = INTERNAL_QUARTZ; 569 chip->clock_mode = VX_CLOCK_MODE_AUTO; 570 chip->freq = 48000; 571 chip->uer_detected = VX_UER_MODE_NOT_PRESENT; 572 chip->uer_bits = SNDRV_PCM_DEFAULT_CON_SPDIF; 573 } 574 575 chip->ops->reset_board(chip, cold_reset); 576 577 vx_reset_codec(chip, cold_reset); 578 579 vx_set_internal_clock(chip, chip->freq); 580 581 /* Reset the DSP */ 582 vx_reset_dsp(chip); 583 584 if (vx_is_pcmcia(chip)) { 585 /* Acknowledge any pending IRQ and reset the MEMIRQ flag. */ 586 vx_test_and_ack(chip); 587 vx_validate_irq(chip, 1); 588 } 589 590 /* init CBits */ 591 vx_set_iec958_status(chip, chip->uer_bits); 592 } 593 594 595 /* 596 * proc interface 597 */ 598 599 static void vx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) 600 { 601 struct vx_core *chip = entry->private_data; 602 static char *audio_src_vxp[] = { "Line", "Mic", "Digital" }; 603 static char *audio_src_vx2[] = { "Analog", "Analog", "Digital" }; 604 static char *clock_mode[] = { "Auto", "Internal", "External" }; 605 static char *clock_src[] = { "Internal", "External" }; 606 static char *uer_type[] = { "Consumer", "Professional", "Not Present" }; 607 608 snd_iprintf(buffer, "%s\n", chip->card->longname); 609 snd_iprintf(buffer, "Xilinx Firmware: %s\n", 610 chip->chip_status & VX_STAT_XILINX_LOADED ? "Loaded" : "No"); 611 snd_iprintf(buffer, "Device Initialized: %s\n", 612 chip->chip_status & VX_STAT_DEVICE_INIT ? "Yes" : "No"); 613 snd_iprintf(buffer, "DSP audio info:"); 614 if (chip->audio_info & VX_AUDIO_INFO_REAL_TIME) 615 snd_iprintf(buffer, " realtime"); 616 if (chip->audio_info & VX_AUDIO_INFO_OFFLINE) 617 snd_iprintf(buffer, " offline"); 618 if (chip->audio_info & VX_AUDIO_INFO_MPEG1) 619 snd_iprintf(buffer, " mpeg1"); 620 if (chip->audio_info & VX_AUDIO_INFO_MPEG2) 621 snd_iprintf(buffer, " mpeg2"); 622 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_8) 623 snd_iprintf(buffer, " linear8"); 624 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_16) 625 snd_iprintf(buffer, " linear16"); 626 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_24) 627 snd_iprintf(buffer, " linear24"); 628 snd_iprintf(buffer, "\n"); 629 snd_iprintf(buffer, "Input Source: %s\n", vx_is_pcmcia(chip) ? 630 audio_src_vxp[chip->audio_source] : 631 audio_src_vx2[chip->audio_source]); 632 snd_iprintf(buffer, "Clock Mode: %s\n", clock_mode[chip->clock_mode]); 633 snd_iprintf(buffer, "Clock Source: %s\n", clock_src[chip->clock_source]); 634 snd_iprintf(buffer, "Frequency: %d\n", chip->freq); 635 snd_iprintf(buffer, "Detected Frequency: %d\n", chip->freq_detected); 636 snd_iprintf(buffer, "Detected UER type: %s\n", uer_type[chip->uer_detected]); 637 snd_iprintf(buffer, "Min/Max/Cur IBL: %d/%d/%d (granularity=%d)\n", 638 chip->ibl.min_size, chip->ibl.max_size, chip->ibl.size, 639 chip->ibl.granularity); 640 } 641 642 static void vx_proc_init(struct vx_core *chip) 643 { 644 struct snd_info_entry *entry; 645 646 if (! snd_card_proc_new(chip->card, "vx-status", &entry)) 647 snd_info_set_text_ops(entry, chip, vx_proc_read); 648 } 649 650 651 /** 652 * snd_vx_dsp_boot - load the DSP boot 653 */ 654 int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *boot) 655 { 656 int err; 657 int cold_reset = !(chip->chip_status & VX_STAT_DEVICE_INIT); 658 659 vx_reset_board(chip, cold_reset); 660 vx_validate_irq(chip, 0); 661 662 if ((err = snd_vx_load_boot_image(chip, boot)) < 0) 663 return err; 664 msleep(10); 665 666 return 0; 667 } 668 669 EXPORT_SYMBOL(snd_vx_dsp_boot); 670 671 /** 672 * snd_vx_dsp_load - load the DSP image 673 */ 674 int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp) 675 { 676 unsigned int i; 677 int err; 678 unsigned int csum = 0; 679 const unsigned char *image, *cptr; 680 681 if (dsp->size % 3) 682 return -EINVAL; 683 684 vx_toggle_dac_mute(chip, 1); 685 686 /* Transfert data buffer from PC to DSP */ 687 for (i = 0; i < dsp->size; i += 3) { 688 image = dsp->data + i; 689 /* Wait DSP ready for a new read */ 690 if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { 691 printk("dsp loading error at position %d\n", i); 692 return err; 693 } 694 cptr = image; 695 csum ^= *cptr; 696 csum = (csum >> 24) | (csum << 8); 697 vx_outb(chip, TXH, *cptr++); 698 csum ^= *cptr; 699 csum = (csum >> 24) | (csum << 8); 700 vx_outb(chip, TXM, *cptr++); 701 csum ^= *cptr; 702 csum = (csum >> 24) | (csum << 8); 703 vx_outb(chip, TXL, *cptr++); 704 } 705 snd_printdd(KERN_DEBUG "checksum = 0x%08x\n", csum); 706 707 msleep(200); 708 709 if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 710 return err; 711 712 vx_toggle_dac_mute(chip, 0); 713 714 vx_test_and_ack(chip); 715 vx_validate_irq(chip, 1); 716 717 return 0; 718 } 719 720 EXPORT_SYMBOL(snd_vx_dsp_load); 721 722 #ifdef CONFIG_PM 723 /* 724 * suspend 725 */ 726 int snd_vx_suspend(struct vx_core *chip, pm_message_t state) 727 { 728 unsigned int i; 729 730 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); 731 chip->chip_status |= VX_STAT_IN_SUSPEND; 732 for (i = 0; i < chip->hw->num_codecs; i++) 733 snd_pcm_suspend_all(chip->pcm[i]); 734 735 return 0; 736 } 737 738 EXPORT_SYMBOL(snd_vx_suspend); 739 740 /* 741 * resume 742 */ 743 int snd_vx_resume(struct vx_core *chip) 744 { 745 int i, err; 746 747 chip->chip_status &= ~VX_STAT_CHIP_INIT; 748 749 for (i = 0; i < 4; i++) { 750 if (! chip->firmware[i]) 751 continue; 752 err = chip->ops->load_dsp(chip, i, chip->firmware[i]); 753 if (err < 0) { 754 snd_printk(KERN_ERR "vx: firmware resume error at DSP %d\n", i); 755 return -EIO; 756 } 757 } 758 759 chip->chip_status |= VX_STAT_CHIP_INIT; 760 chip->chip_status &= ~VX_STAT_IN_SUSPEND; 761 762 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); 763 return 0; 764 } 765 766 EXPORT_SYMBOL(snd_vx_resume); 767 #endif 768 769 /** 770 * snd_vx_create - constructor for struct vx_core 771 * @hw: hardware specific record 772 * 773 * this function allocates the instance and prepare for the hardware 774 * initialization. 775 * 776 * return the instance pointer if successful, NULL in error. 777 */ 778 struct vx_core *snd_vx_create(struct snd_card *card, struct snd_vx_hardware *hw, 779 struct snd_vx_ops *ops, 780 int extra_size) 781 { 782 struct vx_core *chip; 783 784 if (snd_BUG_ON(!card || !hw || !ops)) 785 return NULL; 786 787 chip = kzalloc(sizeof(*chip) + extra_size, GFP_KERNEL); 788 if (! chip) { 789 snd_printk(KERN_ERR "vx_core: no memory\n"); 790 return NULL; 791 } 792 spin_lock_init(&chip->lock); 793 spin_lock_init(&chip->irq_lock); 794 chip->irq = -1; 795 chip->hw = hw; 796 chip->type = hw->type; 797 chip->ops = ops; 798 tasklet_init(&chip->tq, vx_interrupt, (unsigned long)chip); 799 mutex_init(&chip->mixer_mutex); 800 801 chip->card = card; 802 card->private_data = chip; 803 strcpy(card->driver, hw->name); 804 sprintf(card->shortname, "Digigram %s", hw->name); 805 806 vx_proc_init(chip); 807 808 return chip; 809 } 810 811 EXPORT_SYMBOL(snd_vx_create); 812 813 /* 814 * module entries 815 */ 816 static int __init alsa_vx_core_init(void) 817 { 818 return 0; 819 } 820 821 static void __exit alsa_vx_core_exit(void) 822 { 823 } 824 825 module_init(alsa_vx_core_init) 826 module_exit(alsa_vx_core_exit) 827