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 <sound/driver.h> 24 #include <linux/delay.h> 25 #include <linux/slab.h> 26 #include <linux/interrupt.h> 27 #include <linux/init.h> 28 #include <linux/device.h> 29 #include <linux/firmware.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 snd_assert(size <= SIZE_MAX_STATUS, 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 snd_assert(boot->size > 0, return -EINVAL); 430 snd_assert(boot->size % 3 == 0, return -EINVAL); 431 #if 0 432 { 433 /* more strict check */ 434 unsigned int c = ((u32)boot->data[0] << 16) | ((u32)boot->data[1] << 8) | boot->data[2]; 435 snd_assert(boot->size == (c + 2) * 3, return -EINVAL); 436 } 437 #endif 438 439 /* reset dsp */ 440 vx_reset_dsp(chip); 441 442 udelay(END_OF_RESET_WAIT_TIME); /* another wait? */ 443 444 /* download boot strap */ 445 for (i = 0; i < 0x600; i += 3) { 446 if (i >= boot->size) { 447 if (no_fillup) 448 break; 449 if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { 450 snd_printk(KERN_ERR "dsp boot failed at %d\n", i); 451 return -EIO; 452 } 453 vx_outb(chip, TXH, 0); 454 vx_outb(chip, TXM, 0); 455 vx_outb(chip, TXL, 0); 456 } else { 457 unsigned char *image = boot->data + i; 458 if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { 459 snd_printk(KERN_ERR "dsp boot failed at %d\n", i); 460 return -EIO; 461 } 462 vx_outb(chip, TXH, image[0]); 463 vx_outb(chip, TXM, image[1]); 464 vx_outb(chip, TXL, image[2]); 465 } 466 } 467 return 0; 468 } 469 470 EXPORT_SYMBOL(snd_vx_load_boot_image); 471 472 /* 473 * vx_test_irq_src - query the source of interrupts 474 * 475 * called from irq handler only 476 */ 477 static int vx_test_irq_src(struct vx_core *chip, unsigned int *ret) 478 { 479 int err; 480 481 vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT); 482 spin_lock(&chip->lock); 483 err = vx_send_msg_nolock(chip, &chip->irq_rmh); 484 if (err < 0) 485 *ret = 0; 486 else 487 *ret = chip->irq_rmh.Stat[0]; 488 spin_unlock(&chip->lock); 489 return err; 490 } 491 492 493 /* 494 * vx_interrupt - soft irq handler 495 */ 496 static void vx_interrupt(unsigned long private_data) 497 { 498 struct vx_core *chip = (struct vx_core *) private_data; 499 unsigned int events; 500 501 if (chip->chip_status & VX_STAT_IS_STALE) 502 return; 503 504 if (vx_test_irq_src(chip, &events) < 0) 505 return; 506 507 #if 0 508 if (events & 0x000800) 509 printk(KERN_ERR "DSP Stream underrun ! IRQ events = 0x%x\n", events); 510 #endif 511 // printk(KERN_DEBUG "IRQ events = 0x%x\n", events); 512 513 /* We must prevent any application using this DSP 514 * and block any further request until the application 515 * either unregisters or reloads the DSP 516 */ 517 if (events & FATAL_DSP_ERROR) { 518 snd_printk(KERN_ERR "vx_core: fatal DSP error!!\n"); 519 return; 520 } 521 522 /* The start on time code conditions are filled (ie the time code 523 * received by the board is equal to one of those given to it). 524 */ 525 if (events & TIME_CODE_EVENT_PENDING) 526 ; /* so far, nothing to do yet */ 527 528 /* The frequency has changed on the board (UER mode). */ 529 if (events & FREQUENCY_CHANGE_EVENT_PENDING) 530 vx_change_frequency(chip); 531 532 /* update the pcm streams */ 533 vx_pcm_update_intr(chip, events); 534 } 535 536 537 /** 538 * snd_vx_irq_handler - interrupt handler 539 */ 540 irqreturn_t snd_vx_irq_handler(int irq, void *dev) 541 { 542 struct vx_core *chip = dev; 543 544 if (! (chip->chip_status & VX_STAT_CHIP_INIT) || 545 (chip->chip_status & VX_STAT_IS_STALE)) 546 return IRQ_NONE; 547 if (! vx_test_and_ack(chip)) 548 tasklet_hi_schedule(&chip->tq); 549 return IRQ_HANDLED; 550 } 551 552 EXPORT_SYMBOL(snd_vx_irq_handler); 553 554 /* 555 */ 556 static void vx_reset_board(struct vx_core *chip, int cold_reset) 557 { 558 snd_assert(chip->ops->reset_board, return); 559 560 /* current source, later sync'ed with target */ 561 chip->audio_source = VX_AUDIO_SRC_LINE; 562 if (cold_reset) { 563 chip->audio_source_target = chip->audio_source; 564 chip->clock_source = INTERNAL_QUARTZ; 565 chip->clock_mode = VX_CLOCK_MODE_AUTO; 566 chip->freq = 48000; 567 chip->uer_detected = VX_UER_MODE_NOT_PRESENT; 568 chip->uer_bits = SNDRV_PCM_DEFAULT_CON_SPDIF; 569 } 570 571 chip->ops->reset_board(chip, cold_reset); 572 573 vx_reset_codec(chip, cold_reset); 574 575 vx_set_internal_clock(chip, chip->freq); 576 577 /* Reset the DSP */ 578 vx_reset_dsp(chip); 579 580 if (vx_is_pcmcia(chip)) { 581 /* Acknowledge any pending IRQ and reset the MEMIRQ flag. */ 582 vx_test_and_ack(chip); 583 vx_validate_irq(chip, 1); 584 } 585 586 /* init CBits */ 587 vx_set_iec958_status(chip, chip->uer_bits); 588 } 589 590 591 /* 592 * proc interface 593 */ 594 595 static void vx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) 596 { 597 struct vx_core *chip = entry->private_data; 598 static char *audio_src_vxp[] = { "Line", "Mic", "Digital" }; 599 static char *audio_src_vx2[] = { "Analog", "Analog", "Digital" }; 600 static char *clock_mode[] = { "Auto", "Internal", "External" }; 601 static char *clock_src[] = { "Internal", "External" }; 602 static char *uer_type[] = { "Consumer", "Professional", "Not Present" }; 603 604 snd_iprintf(buffer, "%s\n", chip->card->longname); 605 snd_iprintf(buffer, "Xilinx Firmware: %s\n", 606 chip->chip_status & VX_STAT_XILINX_LOADED ? "Loaded" : "No"); 607 snd_iprintf(buffer, "Device Initialized: %s\n", 608 chip->chip_status & VX_STAT_DEVICE_INIT ? "Yes" : "No"); 609 snd_iprintf(buffer, "DSP audio info:"); 610 if (chip->audio_info & VX_AUDIO_INFO_REAL_TIME) 611 snd_iprintf(buffer, " realtime"); 612 if (chip->audio_info & VX_AUDIO_INFO_OFFLINE) 613 snd_iprintf(buffer, " offline"); 614 if (chip->audio_info & VX_AUDIO_INFO_MPEG1) 615 snd_iprintf(buffer, " mpeg1"); 616 if (chip->audio_info & VX_AUDIO_INFO_MPEG2) 617 snd_iprintf(buffer, " mpeg2"); 618 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_8) 619 snd_iprintf(buffer, " linear8"); 620 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_16) 621 snd_iprintf(buffer, " linear16"); 622 if (chip->audio_info & VX_AUDIO_INFO_LINEAR_24) 623 snd_iprintf(buffer, " linear24"); 624 snd_iprintf(buffer, "\n"); 625 snd_iprintf(buffer, "Input Source: %s\n", vx_is_pcmcia(chip) ? 626 audio_src_vxp[chip->audio_source] : 627 audio_src_vx2[chip->audio_source]); 628 snd_iprintf(buffer, "Clock Mode: %s\n", clock_mode[chip->clock_mode]); 629 snd_iprintf(buffer, "Clock Source: %s\n", clock_src[chip->clock_source]); 630 snd_iprintf(buffer, "Frequency: %d\n", chip->freq); 631 snd_iprintf(buffer, "Detected Frequency: %d\n", chip->freq_detected); 632 snd_iprintf(buffer, "Detected UER type: %s\n", uer_type[chip->uer_detected]); 633 snd_iprintf(buffer, "Min/Max/Cur IBL: %d/%d/%d (granularity=%d)\n", 634 chip->ibl.min_size, chip->ibl.max_size, chip->ibl.size, 635 chip->ibl.granularity); 636 } 637 638 static void vx_proc_init(struct vx_core *chip) 639 { 640 struct snd_info_entry *entry; 641 642 if (! snd_card_proc_new(chip->card, "vx-status", &entry)) 643 snd_info_set_text_ops(entry, chip, vx_proc_read); 644 } 645 646 647 /** 648 * snd_vx_dsp_boot - load the DSP boot 649 */ 650 int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *boot) 651 { 652 int err; 653 int cold_reset = !(chip->chip_status & VX_STAT_DEVICE_INIT); 654 655 vx_reset_board(chip, cold_reset); 656 vx_validate_irq(chip, 0); 657 658 if ((err = snd_vx_load_boot_image(chip, boot)) < 0) 659 return err; 660 msleep(10); 661 662 return 0; 663 } 664 665 EXPORT_SYMBOL(snd_vx_dsp_boot); 666 667 /** 668 * snd_vx_dsp_load - load the DSP image 669 */ 670 int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp) 671 { 672 unsigned int i; 673 int err; 674 unsigned int csum = 0; 675 unsigned char *image, *cptr; 676 677 snd_assert(dsp->size % 3 == 0, return -EINVAL); 678 679 vx_toggle_dac_mute(chip, 1); 680 681 /* Transfert data buffer from PC to DSP */ 682 for (i = 0; i < dsp->size; i += 3) { 683 image = dsp->data + i; 684 /* Wait DSP ready for a new read */ 685 if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { 686 printk("dsp loading error at position %d\n", i); 687 return err; 688 } 689 cptr = image; 690 csum ^= *cptr; 691 csum = (csum >> 24) | (csum << 8); 692 vx_outb(chip, TXH, *cptr++); 693 csum ^= *cptr; 694 csum = (csum >> 24) | (csum << 8); 695 vx_outb(chip, TXM, *cptr++); 696 csum ^= *cptr; 697 csum = (csum >> 24) | (csum << 8); 698 vx_outb(chip, TXL, *cptr++); 699 } 700 snd_printdd(KERN_DEBUG "checksum = 0x%08x\n", csum); 701 702 msleep(200); 703 704 if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 705 return err; 706 707 vx_toggle_dac_mute(chip, 0); 708 709 vx_test_and_ack(chip); 710 vx_validate_irq(chip, 1); 711 712 return 0; 713 } 714 715 EXPORT_SYMBOL(snd_vx_dsp_load); 716 717 #ifdef CONFIG_PM 718 /* 719 * suspend 720 */ 721 int snd_vx_suspend(struct vx_core *chip, pm_message_t state) 722 { 723 unsigned int i; 724 725 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); 726 chip->chip_status |= VX_STAT_IN_SUSPEND; 727 for (i = 0; i < chip->hw->num_codecs; i++) 728 snd_pcm_suspend_all(chip->pcm[i]); 729 730 return 0; 731 } 732 733 EXPORT_SYMBOL(snd_vx_suspend); 734 735 /* 736 * resume 737 */ 738 int snd_vx_resume(struct vx_core *chip) 739 { 740 int i, err; 741 742 chip->chip_status &= ~VX_STAT_CHIP_INIT; 743 744 for (i = 0; i < 4; i++) { 745 if (! chip->firmware[i]) 746 continue; 747 err = chip->ops->load_dsp(chip, i, chip->firmware[i]); 748 if (err < 0) { 749 snd_printk(KERN_ERR "vx: firmware resume error at DSP %d\n", i); 750 return -EIO; 751 } 752 } 753 754 chip->chip_status |= VX_STAT_CHIP_INIT; 755 chip->chip_status &= ~VX_STAT_IN_SUSPEND; 756 757 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); 758 return 0; 759 } 760 761 EXPORT_SYMBOL(snd_vx_resume); 762 #endif 763 764 /** 765 * snd_vx_create - constructor for struct vx_core 766 * @hw: hardware specific record 767 * 768 * this function allocates the instance and prepare for the hardware 769 * initialization. 770 * 771 * return the instance pointer if successful, NULL in error. 772 */ 773 struct vx_core *snd_vx_create(struct snd_card *card, struct snd_vx_hardware *hw, 774 struct snd_vx_ops *ops, 775 int extra_size) 776 { 777 struct vx_core *chip; 778 779 snd_assert(card && hw && ops, return NULL); 780 781 chip = kzalloc(sizeof(*chip) + extra_size, GFP_KERNEL); 782 if (! chip) { 783 snd_printk(KERN_ERR "vx_core: no memory\n"); 784 return NULL; 785 } 786 spin_lock_init(&chip->lock); 787 spin_lock_init(&chip->irq_lock); 788 chip->irq = -1; 789 chip->hw = hw; 790 chip->type = hw->type; 791 chip->ops = ops; 792 tasklet_init(&chip->tq, vx_interrupt, (unsigned long)chip); 793 mutex_init(&chip->mixer_mutex); 794 795 chip->card = card; 796 card->private_data = chip; 797 strcpy(card->driver, hw->name); 798 sprintf(card->shortname, "Digigram %s", hw->name); 799 800 vx_proc_init(chip); 801 802 return chip; 803 } 804 805 EXPORT_SYMBOL(snd_vx_create); 806 807 /* 808 * module entries 809 */ 810 static int __init alsa_vx_core_init(void) 811 { 812 return 0; 813 } 814 815 static void __exit alsa_vx_core_exit(void) 816 { 817 } 818 819 module_init(alsa_vx_core_init) 820 module_exit(alsa_vx_core_exit) 821