1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Low-level ALSA driver for the ENSONIQ SoundScape 4 * Copyright (c) by Chris Rankin 5 * 6 * This driver was written in part using information obtained from 7 * the OSS/Free SoundScape driver, written by Hannu Savolainen. 8 */ 9 10 #include <linux/init.h> 11 #include <linux/err.h> 12 #include <linux/io.h> 13 #include <linux/isa.h> 14 #include <linux/delay.h> 15 #include <linux/firmware.h> 16 #include <linux/pnp.h> 17 #include <linux/spinlock.h> 18 #include <linux/module.h> 19 #include <asm/dma.h> 20 #include <sound/core.h> 21 #include <sound/wss.h> 22 #include <sound/mpu401.h> 23 #include <sound/initval.h> 24 25 26 MODULE_AUTHOR("Chris Rankin"); 27 MODULE_DESCRIPTION("ENSONIQ SoundScape driver"); 28 MODULE_LICENSE("GPL"); 29 MODULE_FIRMWARE("sndscape.co0"); 30 MODULE_FIRMWARE("sndscape.co1"); 31 MODULE_FIRMWARE("sndscape.co2"); 32 MODULE_FIRMWARE("sndscape.co3"); 33 MODULE_FIRMWARE("sndscape.co4"); 34 MODULE_FIRMWARE("scope.cod"); 35 36 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 37 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 38 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; 39 static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; 40 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; 41 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; 42 static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; 43 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; 44 static bool joystick[SNDRV_CARDS]; 45 46 module_param_array(index, int, NULL, 0444); 47 MODULE_PARM_DESC(index, "Index number for SoundScape soundcard"); 48 49 module_param_array(id, charp, NULL, 0444); 50 MODULE_PARM_DESC(id, "Description for SoundScape card"); 51 52 module_param_hw_array(port, long, ioport, NULL, 0444); 53 MODULE_PARM_DESC(port, "Port # for SoundScape driver."); 54 55 module_param_hw_array(wss_port, long, ioport, NULL, 0444); 56 MODULE_PARM_DESC(wss_port, "WSS Port # for SoundScape driver."); 57 58 module_param_hw_array(irq, int, irq, NULL, 0444); 59 MODULE_PARM_DESC(irq, "IRQ # for SoundScape driver."); 60 61 module_param_hw_array(mpu_irq, int, irq, NULL, 0444); 62 MODULE_PARM_DESC(mpu_irq, "MPU401 IRQ # for SoundScape driver."); 63 64 module_param_hw_array(dma, int, dma, NULL, 0444); 65 MODULE_PARM_DESC(dma, "DMA # for SoundScape driver."); 66 67 module_param_hw_array(dma2, int, dma, NULL, 0444); 68 MODULE_PARM_DESC(dma2, "DMA2 # for SoundScape driver."); 69 70 module_param_array(joystick, bool, NULL, 0444); 71 MODULE_PARM_DESC(joystick, "Enable gameport."); 72 73 #ifdef CONFIG_PNP 74 static int isa_registered; 75 static int pnp_registered; 76 77 static const struct pnp_card_device_id sscape_pnpids[] = { 78 { .id = "ENS3081", .devs = { { "ENS0000" } } }, /* Soundscape PnP */ 79 { .id = "ENS4081", .devs = { { "ENS1011" } } }, /* VIVO90 */ 80 { .id = "" } /* end */ 81 }; 82 83 MODULE_DEVICE_TABLE(pnp_card, sscape_pnpids); 84 #endif 85 86 87 #define HOST_CTRL_IO(i) ((i) + 2) 88 #define HOST_DATA_IO(i) ((i) + 3) 89 #define ODIE_ADDR_IO(i) ((i) + 4) 90 #define ODIE_DATA_IO(i) ((i) + 5) 91 #define CODEC_IO(i) ((i) + 8) 92 93 #define IC_ODIE 1 94 #define IC_OPUS 2 95 96 #define RX_READY 0x01 97 #define TX_READY 0x02 98 99 #define CMD_ACK 0x80 100 #define CMD_SET_MIDI_VOL 0x84 101 #define CMD_GET_MIDI_VOL 0x85 102 #define CMD_XXX_MIDI_VOL 0x86 103 #define CMD_SET_EXTMIDI 0x8a 104 #define CMD_GET_EXTMIDI 0x8b 105 #define CMD_SET_MT32 0x8c 106 #define CMD_GET_MT32 0x8d 107 108 enum GA_REG { 109 GA_INTSTAT_REG = 0, 110 GA_INTENA_REG, 111 GA_DMAA_REG, 112 GA_DMAB_REG, 113 GA_INTCFG_REG, 114 GA_DMACFG_REG, 115 GA_CDCFG_REG, 116 GA_SMCFGA_REG, 117 GA_SMCFGB_REG, 118 GA_HMCTL_REG 119 }; 120 121 #define DMA_8BIT 0x80 122 123 124 enum card_type { 125 MEDIA_FX, /* Sequoia S-1000 */ 126 SSCAPE, /* Sequoia S-2000 */ 127 SSCAPE_PNP, 128 SSCAPE_VIVO, 129 }; 130 131 struct soundscape { 132 spinlock_t lock; 133 unsigned io_base; 134 int ic_type; 135 enum card_type type; 136 struct resource *io_res; 137 struct resource *wss_res; 138 struct snd_wss *chip; 139 140 unsigned char midi_vol; 141 }; 142 143 #define INVALID_IRQ ((unsigned)-1) 144 145 146 static inline struct soundscape *get_card_soundscape(struct snd_card *c) 147 { 148 return (struct soundscape *) (c->private_data); 149 } 150 151 /* 152 * Allocates some kernel memory that we can use for DMA. 153 * I think this means that the memory has to map to 154 * contiguous pages of physical memory. 155 */ 156 static struct snd_dma_buffer *get_dmabuf(struct soundscape *s, 157 struct snd_dma_buffer *buf, 158 unsigned long size) 159 { 160 if (buf) { 161 if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV, 162 s->chip->card->dev, 163 size, buf) < 0) { 164 snd_printk(KERN_ERR "sscape: Failed to allocate " 165 "%lu bytes for DMA\n", 166 size); 167 return NULL; 168 } 169 } 170 171 return buf; 172 } 173 174 /* 175 * Release the DMA-able kernel memory ... 176 */ 177 static void free_dmabuf(struct snd_dma_buffer *buf) 178 { 179 if (buf && buf->area) 180 snd_dma_free_pages(buf); 181 } 182 183 /* 184 * This function writes to the SoundScape's control registers, 185 * but doesn't do any locking. It's up to the caller to do that. 186 * This is why this function is "unsafe" ... 187 */ 188 static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg, 189 unsigned char val) 190 { 191 outb(reg, ODIE_ADDR_IO(io_base)); 192 outb(val, ODIE_DATA_IO(io_base)); 193 } 194 195 /* 196 * Write to the SoundScape's control registers, and do the 197 * necessary locking ... 198 */ 199 static void sscape_write(struct soundscape *s, enum GA_REG reg, 200 unsigned char val) 201 { 202 unsigned long flags; 203 204 spin_lock_irqsave(&s->lock, flags); 205 sscape_write_unsafe(s->io_base, reg, val); 206 spin_unlock_irqrestore(&s->lock, flags); 207 } 208 209 /* 210 * Read from the SoundScape's control registers, but leave any 211 * locking to the caller. This is why the function is "unsafe" ... 212 */ 213 static inline unsigned char sscape_read_unsafe(unsigned io_base, 214 enum GA_REG reg) 215 { 216 outb(reg, ODIE_ADDR_IO(io_base)); 217 return inb(ODIE_DATA_IO(io_base)); 218 } 219 220 /* 221 * Puts the SoundScape into "host" mode, as compared to "MIDI" mode 222 */ 223 static inline void set_host_mode_unsafe(unsigned io_base) 224 { 225 outb(0x0, HOST_CTRL_IO(io_base)); 226 } 227 228 /* 229 * Puts the SoundScape into "MIDI" mode, as compared to "host" mode 230 */ 231 static inline void set_midi_mode_unsafe(unsigned io_base) 232 { 233 outb(0x3, HOST_CTRL_IO(io_base)); 234 } 235 236 /* 237 * Read the SoundScape's host-mode control register, but leave 238 * any locking issues to the caller ... 239 */ 240 static inline int host_read_unsafe(unsigned io_base) 241 { 242 int data = -1; 243 if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0) 244 data = inb(HOST_DATA_IO(io_base)); 245 246 return data; 247 } 248 249 /* 250 * Read the SoundScape's host-mode control register, performing 251 * a limited amount of busy-waiting if the register isn't ready. 252 * Also leaves all locking-issues to the caller ... 253 */ 254 static int host_read_ctrl_unsafe(unsigned io_base, unsigned timeout) 255 { 256 int data; 257 258 while (((data = host_read_unsafe(io_base)) < 0) && (timeout != 0)) { 259 udelay(100); 260 --timeout; 261 } /* while */ 262 263 return data; 264 } 265 266 /* 267 * Write to the SoundScape's host-mode control registers, but 268 * leave any locking issues to the caller ... 269 */ 270 static inline int host_write_unsafe(unsigned io_base, unsigned char data) 271 { 272 if ((inb(HOST_CTRL_IO(io_base)) & TX_READY) != 0) { 273 outb(data, HOST_DATA_IO(io_base)); 274 return 1; 275 } 276 277 return 0; 278 } 279 280 /* 281 * Write to the SoundScape's host-mode control registers, performing 282 * a limited amount of busy-waiting if the register isn't ready. 283 * Also leaves all locking-issues to the caller ... 284 */ 285 static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data, 286 unsigned timeout) 287 { 288 int err; 289 290 while (!(err = host_write_unsafe(io_base, data)) && (timeout != 0)) { 291 udelay(100); 292 --timeout; 293 } /* while */ 294 295 return err; 296 } 297 298 299 /* 300 * Check that the MIDI subsystem is operational. If it isn't, 301 * then we will hang the computer if we try to use it ... 302 * 303 * NOTE: This check is based upon observation, not documentation. 304 */ 305 static inline int verify_mpu401(const struct snd_mpu401 *mpu) 306 { 307 return ((inb(MPU401C(mpu)) & 0xc0) == 0x80); 308 } 309 310 /* 311 * This is apparently the standard way to initialise an MPU-401 312 */ 313 static inline void initialise_mpu401(const struct snd_mpu401 *mpu) 314 { 315 outb(0, MPU401D(mpu)); 316 } 317 318 /* 319 * Tell the SoundScape to activate the AD1845 chip (I think). 320 * The AD1845 detection fails if we *don't* do this, so I 321 * think that this is a good idea ... 322 */ 323 static void activate_ad1845_unsafe(unsigned io_base) 324 { 325 unsigned char val = sscape_read_unsafe(io_base, GA_HMCTL_REG); 326 sscape_write_unsafe(io_base, GA_HMCTL_REG, (val & 0xcf) | 0x10); 327 sscape_write_unsafe(io_base, GA_CDCFG_REG, 0x80); 328 } 329 330 /* 331 * Do the necessary ALSA-level cleanup to deallocate our driver ... 332 */ 333 static void soundscape_free(struct snd_card *c) 334 { 335 struct soundscape *sscape = get_card_soundscape(c); 336 release_and_free_resource(sscape->io_res); 337 release_and_free_resource(sscape->wss_res); 338 free_dma(sscape->chip->dma1); 339 } 340 341 /* 342 * Tell the SoundScape to begin a DMA transfer using the given channel. 343 * All locking issues are left to the caller. 344 */ 345 static void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg) 346 { 347 sscape_write_unsafe(io_base, reg, 348 sscape_read_unsafe(io_base, reg) | 0x01); 349 sscape_write_unsafe(io_base, reg, 350 sscape_read_unsafe(io_base, reg) & 0xfe); 351 } 352 353 /* 354 * Wait for a DMA transfer to complete. This is a "limited busy-wait", 355 * and all locking issues are left to the caller. 356 */ 357 static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg, 358 unsigned timeout) 359 { 360 while (!(sscape_read_unsafe(io_base, reg) & 0x01) && (timeout != 0)) { 361 udelay(100); 362 --timeout; 363 } /* while */ 364 365 return sscape_read_unsafe(io_base, reg) & 0x01; 366 } 367 368 /* 369 * Wait for the On-Board Processor to return its start-up 370 * acknowledgement sequence. This wait is too long for 371 * us to perform "busy-waiting", and so we must sleep. 372 * This in turn means that we must not be holding any 373 * spinlocks when we call this function. 374 */ 375 static int obp_startup_ack(struct soundscape *s, unsigned timeout) 376 { 377 unsigned long end_time = jiffies + msecs_to_jiffies(timeout); 378 379 do { 380 unsigned long flags; 381 int x; 382 383 spin_lock_irqsave(&s->lock, flags); 384 x = host_read_unsafe(s->io_base); 385 spin_unlock_irqrestore(&s->lock, flags); 386 if (x == 0xfe || x == 0xff) 387 return 1; 388 389 msleep(10); 390 } while (time_before(jiffies, end_time)); 391 392 return 0; 393 } 394 395 /* 396 * Wait for the host to return its start-up acknowledgement 397 * sequence. This wait is too long for us to perform 398 * "busy-waiting", and so we must sleep. This in turn means 399 * that we must not be holding any spinlocks when we call 400 * this function. 401 */ 402 static int host_startup_ack(struct soundscape *s, unsigned timeout) 403 { 404 unsigned long end_time = jiffies + msecs_to_jiffies(timeout); 405 406 do { 407 unsigned long flags; 408 int x; 409 410 spin_lock_irqsave(&s->lock, flags); 411 x = host_read_unsafe(s->io_base); 412 spin_unlock_irqrestore(&s->lock, flags); 413 if (x == 0xfe) 414 return 1; 415 416 msleep(10); 417 } while (time_before(jiffies, end_time)); 418 419 return 0; 420 } 421 422 /* 423 * Upload a byte-stream into the SoundScape using DMA channel A. 424 */ 425 static int upload_dma_data(struct soundscape *s, const unsigned char *data, 426 size_t size) 427 { 428 unsigned long flags; 429 struct snd_dma_buffer dma; 430 int ret; 431 unsigned char val; 432 433 if (!get_dmabuf(s, &dma, PAGE_ALIGN(32 * 1024))) 434 return -ENOMEM; 435 436 spin_lock_irqsave(&s->lock, flags); 437 438 /* 439 * Reset the board ... 440 */ 441 val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); 442 sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val & 0x3f); 443 444 /* 445 * Enable the DMA channels and configure them ... 446 */ 447 val = (s->chip->dma1 << 4) | DMA_8BIT; 448 sscape_write_unsafe(s->io_base, GA_DMAA_REG, val); 449 sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20); 450 451 /* 452 * Take the board out of reset ... 453 */ 454 val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); 455 sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x80); 456 457 /* 458 * Upload the firmware to the SoundScape 459 * board through the DMA channel ... 460 */ 461 while (size != 0) { 462 unsigned long len; 463 464 len = min(size, dma.bytes); 465 memcpy(dma.area, data, len); 466 data += len; 467 size -= len; 468 469 snd_dma_program(s->chip->dma1, dma.addr, len, DMA_MODE_WRITE); 470 sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG); 471 if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) { 472 /* 473 * Don't forget to release this spinlock we're holding 474 */ 475 spin_unlock_irqrestore(&s->lock, flags); 476 477 snd_printk(KERN_ERR 478 "sscape: DMA upload has timed out\n"); 479 ret = -EAGAIN; 480 goto _release_dma; 481 } 482 } /* while */ 483 484 set_host_mode_unsafe(s->io_base); 485 outb(0x0, s->io_base); 486 487 /* 488 * Boot the board ... (I think) 489 */ 490 val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); 491 sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x40); 492 spin_unlock_irqrestore(&s->lock, flags); 493 494 /* 495 * If all has gone well, then the board should acknowledge 496 * the new upload and tell us that it has rebooted OK. We 497 * give it 5 seconds (max) ... 498 */ 499 ret = 0; 500 if (!obp_startup_ack(s, 5000)) { 501 snd_printk(KERN_ERR "sscape: No response " 502 "from on-board processor after upload\n"); 503 ret = -EAGAIN; 504 } else if (!host_startup_ack(s, 5000)) { 505 snd_printk(KERN_ERR 506 "sscape: SoundScape failed to initialise\n"); 507 ret = -EAGAIN; 508 } 509 510 _release_dma: 511 /* 512 * NOTE!!! We are NOT holding any spinlocks at this point !!! 513 */ 514 sscape_write(s, GA_DMAA_REG, (s->ic_type == IC_OPUS ? 0x40 : 0x70)); 515 free_dmabuf(&dma); 516 517 return ret; 518 } 519 520 /* 521 * Upload the bootblock(?) into the SoundScape. The only 522 * purpose of this block of code seems to be to tell 523 * us which version of the microcode we should be using. 524 */ 525 static int sscape_upload_bootblock(struct snd_card *card) 526 { 527 struct soundscape *sscape = get_card_soundscape(card); 528 unsigned long flags; 529 const struct firmware *init_fw = NULL; 530 int data = 0; 531 int ret; 532 533 ret = request_firmware(&init_fw, "scope.cod", card->dev); 534 if (ret < 0) { 535 snd_printk(KERN_ERR "sscape: Error loading scope.cod"); 536 return ret; 537 } 538 ret = upload_dma_data(sscape, init_fw->data, init_fw->size); 539 540 release_firmware(init_fw); 541 542 spin_lock_irqsave(&sscape->lock, flags); 543 if (ret == 0) 544 data = host_read_ctrl_unsafe(sscape->io_base, 100); 545 546 if (data & 0x10) 547 sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2f); 548 549 spin_unlock_irqrestore(&sscape->lock, flags); 550 551 data &= 0xf; 552 if (ret == 0 && data > 7) { 553 snd_printk(KERN_ERR 554 "sscape: timeout reading firmware version\n"); 555 ret = -EAGAIN; 556 } 557 558 return (ret == 0) ? data : ret; 559 } 560 561 /* 562 * Upload the microcode into the SoundScape. 563 */ 564 static int sscape_upload_microcode(struct snd_card *card, int version) 565 { 566 struct soundscape *sscape = get_card_soundscape(card); 567 const struct firmware *init_fw = NULL; 568 char name[14]; 569 int err; 570 571 snprintf(name, sizeof(name), "sndscape.co%d", version); 572 573 err = request_firmware(&init_fw, name, card->dev); 574 if (err < 0) { 575 snd_printk(KERN_ERR "sscape: Error loading sndscape.co%d", 576 version); 577 return err; 578 } 579 err = upload_dma_data(sscape, init_fw->data, init_fw->size); 580 if (err == 0) 581 snd_printk(KERN_INFO "sscape: MIDI firmware loaded %zu KBs\n", 582 init_fw->size >> 10); 583 584 release_firmware(init_fw); 585 586 return err; 587 } 588 589 /* 590 * Mixer control for the SoundScape's MIDI device. 591 */ 592 static int sscape_midi_info(struct snd_kcontrol *ctl, 593 struct snd_ctl_elem_info *uinfo) 594 { 595 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 596 uinfo->count = 1; 597 uinfo->value.integer.min = 0; 598 uinfo->value.integer.max = 127; 599 return 0; 600 } 601 602 static int sscape_midi_get(struct snd_kcontrol *kctl, 603 struct snd_ctl_elem_value *uctl) 604 { 605 struct snd_wss *chip = snd_kcontrol_chip(kctl); 606 struct snd_card *card = chip->card; 607 register struct soundscape *s = get_card_soundscape(card); 608 unsigned long flags; 609 610 spin_lock_irqsave(&s->lock, flags); 611 uctl->value.integer.value[0] = s->midi_vol; 612 spin_unlock_irqrestore(&s->lock, flags); 613 return 0; 614 } 615 616 static int sscape_midi_put(struct snd_kcontrol *kctl, 617 struct snd_ctl_elem_value *uctl) 618 { 619 struct snd_wss *chip = snd_kcontrol_chip(kctl); 620 struct snd_card *card = chip->card; 621 struct soundscape *s = get_card_soundscape(card); 622 unsigned long flags; 623 int change; 624 unsigned char new_val; 625 626 spin_lock_irqsave(&s->lock, flags); 627 628 new_val = uctl->value.integer.value[0] & 127; 629 /* 630 * We need to put the board into HOST mode before we 631 * can send any volume-changing HOST commands ... 632 */ 633 set_host_mode_unsafe(s->io_base); 634 635 /* 636 * To successfully change the MIDI volume setting, you seem to 637 * have to write a volume command, write the new volume value, 638 * and then perform another volume-related command. Perhaps the 639 * first command is an "open" and the second command is a "close"? 640 */ 641 if (s->midi_vol == new_val) { 642 change = 0; 643 goto __skip_change; 644 } 645 change = host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100) 646 && host_write_ctrl_unsafe(s->io_base, new_val, 100) 647 && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100) 648 && host_write_ctrl_unsafe(s->io_base, new_val, 100); 649 s->midi_vol = new_val; 650 __skip_change: 651 652 /* 653 * Take the board out of HOST mode and back into MIDI mode ... 654 */ 655 set_midi_mode_unsafe(s->io_base); 656 657 spin_unlock_irqrestore(&s->lock, flags); 658 return change; 659 } 660 661 static const struct snd_kcontrol_new midi_mixer_ctl = { 662 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 663 .name = "MIDI", 664 .info = sscape_midi_info, 665 .get = sscape_midi_get, 666 .put = sscape_midi_put 667 }; 668 669 /* 670 * The SoundScape can use two IRQs from a possible set of four. 671 * These IRQs are encoded as bit patterns so that they can be 672 * written to the control registers. 673 */ 674 static unsigned get_irq_config(int sscape_type, int irq) 675 { 676 static const int valid_irq[] = { 9, 5, 7, 10 }; 677 static const int old_irq[] = { 9, 7, 5, 15 }; 678 unsigned cfg; 679 680 if (sscape_type == MEDIA_FX) { 681 for (cfg = 0; cfg < ARRAY_SIZE(old_irq); ++cfg) 682 if (irq == old_irq[cfg]) 683 return cfg; 684 } else { 685 for (cfg = 0; cfg < ARRAY_SIZE(valid_irq); ++cfg) 686 if (irq == valid_irq[cfg]) 687 return cfg; 688 } 689 690 return INVALID_IRQ; 691 } 692 693 /* 694 * Perform certain arcane port-checks to see whether there 695 * is a SoundScape board lurking behind the given ports. 696 */ 697 static int detect_sscape(struct soundscape *s, long wss_io) 698 { 699 unsigned long flags; 700 unsigned d; 701 int retval = 0; 702 703 spin_lock_irqsave(&s->lock, flags); 704 705 /* 706 * The following code is lifted from the original OSS driver, 707 * and as I don't have a datasheet I cannot really comment 708 * on what it is doing... 709 */ 710 if ((inb(HOST_CTRL_IO(s->io_base)) & 0x78) != 0) 711 goto _done; 712 713 d = inb(ODIE_ADDR_IO(s->io_base)) & 0xf0; 714 if ((d & 0x80) != 0) 715 goto _done; 716 717 if (d == 0) 718 s->ic_type = IC_ODIE; 719 else if ((d & 0x60) != 0) 720 s->ic_type = IC_OPUS; 721 else 722 goto _done; 723 724 outb(0xfa, ODIE_ADDR_IO(s->io_base)); 725 if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0a) 726 goto _done; 727 728 outb(0xfe, ODIE_ADDR_IO(s->io_base)); 729 if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0e) 730 goto _done; 731 732 outb(0xfe, ODIE_ADDR_IO(s->io_base)); 733 d = inb(ODIE_DATA_IO(s->io_base)); 734 if (s->type != SSCAPE_VIVO && (d & 0x9f) != 0x0e) 735 goto _done; 736 737 if (s->ic_type == IC_OPUS) 738 activate_ad1845_unsafe(s->io_base); 739 740 if (s->type == SSCAPE_VIVO) 741 wss_io += 4; 742 743 d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); 744 sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0); 745 746 /* wait for WSS codec */ 747 for (d = 0; d < 500; d++) { 748 if ((inb(wss_io) & 0x80) == 0) 749 break; 750 spin_unlock_irqrestore(&s->lock, flags); 751 msleep(1); 752 spin_lock_irqsave(&s->lock, flags); 753 } 754 755 if ((inb(wss_io) & 0x80) != 0) 756 goto _done; 757 758 if (inb(wss_io + 2) == 0xff) 759 goto _done; 760 761 d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f; 762 sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d); 763 764 if ((inb(wss_io) & 0x80) != 0) 765 s->type = MEDIA_FX; 766 767 d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); 768 sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0); 769 /* wait for WSS codec */ 770 for (d = 0; d < 500; d++) { 771 if ((inb(wss_io) & 0x80) == 0) 772 break; 773 spin_unlock_irqrestore(&s->lock, flags); 774 msleep(1); 775 spin_lock_irqsave(&s->lock, flags); 776 } 777 778 /* 779 * SoundScape successfully detected! 780 */ 781 retval = 1; 782 783 _done: 784 spin_unlock_irqrestore(&s->lock, flags); 785 return retval; 786 } 787 788 /* 789 * ALSA callback function, called when attempting to open the MIDI device. 790 * Check that the MIDI firmware has been loaded, because we don't want 791 * to crash the machine. Also check that someone isn't using the hardware 792 * IOCTL device. 793 */ 794 static int mpu401_open(struct snd_mpu401 *mpu) 795 { 796 if (!verify_mpu401(mpu)) { 797 snd_printk(KERN_ERR "sscape: MIDI disabled, " 798 "please load firmware\n"); 799 return -ENODEV; 800 } 801 802 return 0; 803 } 804 805 /* 806 * Initialise an MPU-401 subdevice for MIDI support on the SoundScape. 807 */ 808 static int create_mpu401(struct snd_card *card, int devnum, 809 unsigned long port, int irq) 810 { 811 struct soundscape *sscape = get_card_soundscape(card); 812 struct snd_rawmidi *rawmidi; 813 int err; 814 815 err = snd_mpu401_uart_new(card, devnum, MPU401_HW_MPU401, port, 816 MPU401_INFO_INTEGRATED, irq, &rawmidi); 817 if (err == 0) { 818 struct snd_mpu401 *mpu = rawmidi->private_data; 819 mpu->open_input = mpu401_open; 820 mpu->open_output = mpu401_open; 821 mpu->private_data = sscape; 822 823 initialise_mpu401(mpu); 824 } 825 826 return err; 827 } 828 829 830 /* 831 * Create an AD1845 PCM subdevice on the SoundScape. The AD1845 832 * is very much like a CS4231, with a few extra bits. We will 833 * try to support at least some of the extra bits by overriding 834 * some of the CS4231 callback. 835 */ 836 static int create_ad1845(struct snd_card *card, unsigned port, 837 int irq, int dma1, int dma2) 838 { 839 register struct soundscape *sscape = get_card_soundscape(card); 840 struct snd_wss *chip; 841 int err; 842 int codec_type = WSS_HW_DETECT; 843 844 switch (sscape->type) { 845 case MEDIA_FX: 846 case SSCAPE: 847 /* 848 * There are some freak examples of early Soundscape cards 849 * with CS4231 instead of AD1848/CS4248. Unfortunately, the 850 * CS4231 works only in CS4248 compatibility mode on 851 * these cards so force it. 852 */ 853 if (sscape->ic_type != IC_OPUS) 854 codec_type = WSS_HW_AD1848; 855 break; 856 857 case SSCAPE_VIVO: 858 port += 4; 859 break; 860 default: 861 break; 862 } 863 864 err = snd_wss_create(card, port, -1, irq, dma1, dma2, 865 codec_type, WSS_HWSHARE_DMA1, &chip); 866 if (!err) { 867 unsigned long flags; 868 869 if (sscape->type != SSCAPE_VIVO) { 870 /* 871 * The input clock frequency on the SoundScape must 872 * be 14.31818 MHz, because we must set this register 873 * to get the playback to sound correct ... 874 */ 875 snd_wss_mce_up(chip); 876 spin_lock_irqsave(&chip->reg_lock, flags); 877 snd_wss_out(chip, AD1845_CLOCK, 0x20); 878 spin_unlock_irqrestore(&chip->reg_lock, flags); 879 snd_wss_mce_down(chip); 880 881 } 882 883 err = snd_wss_pcm(chip, 0); 884 if (err < 0) { 885 snd_printk(KERN_ERR "sscape: No PCM device " 886 "for AD1845 chip\n"); 887 goto _error; 888 } 889 890 err = snd_wss_mixer(chip); 891 if (err < 0) { 892 snd_printk(KERN_ERR "sscape: No mixer device " 893 "for AD1845 chip\n"); 894 goto _error; 895 } 896 if (chip->hardware != WSS_HW_AD1848) { 897 err = snd_wss_timer(chip, 0); 898 if (err < 0) { 899 snd_printk(KERN_ERR "sscape: No timer device " 900 "for AD1845 chip\n"); 901 goto _error; 902 } 903 } 904 905 if (sscape->type != SSCAPE_VIVO) { 906 err = snd_ctl_add(card, 907 snd_ctl_new1(&midi_mixer_ctl, chip)); 908 if (err < 0) { 909 snd_printk(KERN_ERR "sscape: Could not create " 910 "MIDI mixer control\n"); 911 goto _error; 912 } 913 } 914 915 sscape->chip = chip; 916 } 917 918 _error: 919 return err; 920 } 921 922 923 /* 924 * Create an ALSA soundcard entry for the SoundScape, using 925 * the given list of port, IRQ and DMA resources. 926 */ 927 static int create_sscape(int dev, struct snd_card *card) 928 { 929 struct soundscape *sscape = get_card_soundscape(card); 930 unsigned dma_cfg; 931 unsigned irq_cfg; 932 unsigned mpu_irq_cfg; 933 struct resource *io_res; 934 struct resource *wss_res; 935 unsigned long flags; 936 int err; 937 int val; 938 const char *name; 939 940 /* 941 * Grab IO ports that we will need to probe so that we 942 * can detect and control this hardware ... 943 */ 944 io_res = request_region(port[dev], 8, "SoundScape"); 945 if (!io_res) { 946 snd_printk(KERN_ERR 947 "sscape: can't grab port 0x%lx\n", port[dev]); 948 return -EBUSY; 949 } 950 wss_res = NULL; 951 if (sscape->type == SSCAPE_VIVO) { 952 wss_res = request_region(wss_port[dev], 4, "SoundScape"); 953 if (!wss_res) { 954 snd_printk(KERN_ERR "sscape: can't grab port 0x%lx\n", 955 wss_port[dev]); 956 err = -EBUSY; 957 goto _release_region; 958 } 959 } 960 961 /* 962 * Grab one DMA channel ... 963 */ 964 err = request_dma(dma[dev], "SoundScape"); 965 if (err < 0) { 966 snd_printk(KERN_ERR "sscape: can't grab DMA %d\n", dma[dev]); 967 goto _release_region; 968 } 969 970 spin_lock_init(&sscape->lock); 971 sscape->io_res = io_res; 972 sscape->wss_res = wss_res; 973 sscape->io_base = port[dev]; 974 975 if (!detect_sscape(sscape, wss_port[dev])) { 976 printk(KERN_ERR "sscape: hardware not detected at 0x%x\n", 977 sscape->io_base); 978 err = -ENODEV; 979 goto _release_dma; 980 } 981 982 switch (sscape->type) { 983 case MEDIA_FX: 984 name = "MediaFX/SoundFX"; 985 break; 986 case SSCAPE: 987 name = "Soundscape"; 988 break; 989 case SSCAPE_PNP: 990 name = "Soundscape PnP"; 991 break; 992 case SSCAPE_VIVO: 993 name = "Soundscape VIVO"; 994 break; 995 default: 996 name = "unknown Soundscape"; 997 break; 998 } 999 1000 printk(KERN_INFO "sscape: %s card detected at 0x%x, using IRQ %d, DMA %d\n", 1001 name, sscape->io_base, irq[dev], dma[dev]); 1002 1003 /* 1004 * Check that the user didn't pass us garbage data ... 1005 */ 1006 irq_cfg = get_irq_config(sscape->type, irq[dev]); 1007 if (irq_cfg == INVALID_IRQ) { 1008 snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", irq[dev]); 1009 err = -ENXIO; 1010 goto _release_dma; 1011 } 1012 1013 mpu_irq_cfg = get_irq_config(sscape->type, mpu_irq[dev]); 1014 if (mpu_irq_cfg == INVALID_IRQ) { 1015 snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", mpu_irq[dev]); 1016 err = -ENXIO; 1017 goto _release_dma; 1018 } 1019 1020 /* 1021 * Tell the on-board devices where their resources are (I think - 1022 * I can't be sure without a datasheet ... So many magic values!) 1023 */ 1024 spin_lock_irqsave(&sscape->lock, flags); 1025 1026 sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e); 1027 sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00); 1028 1029 /* 1030 * Enable and configure the DMA channels ... 1031 */ 1032 sscape_write_unsafe(sscape->io_base, GA_DMACFG_REG, 0x50); 1033 dma_cfg = (sscape->ic_type == IC_OPUS ? 0x40 : 0x70); 1034 sscape_write_unsafe(sscape->io_base, GA_DMAA_REG, dma_cfg); 1035 sscape_write_unsafe(sscape->io_base, GA_DMAB_REG, 0x20); 1036 1037 mpu_irq_cfg |= mpu_irq_cfg << 2; 1038 val = sscape_read_unsafe(sscape->io_base, GA_HMCTL_REG) & 0xF7; 1039 if (joystick[dev]) 1040 val |= 8; 1041 sscape_write_unsafe(sscape->io_base, GA_HMCTL_REG, val | 0x10); 1042 sscape_write_unsafe(sscape->io_base, GA_INTCFG_REG, 0xf0 | mpu_irq_cfg); 1043 sscape_write_unsafe(sscape->io_base, 1044 GA_CDCFG_REG, 0x09 | DMA_8BIT 1045 | (dma[dev] << 4) | (irq_cfg << 1)); 1046 /* 1047 * Enable the master IRQ ... 1048 */ 1049 sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x80); 1050 1051 spin_unlock_irqrestore(&sscape->lock, flags); 1052 1053 /* 1054 * We have now enabled the codec chip, and so we should 1055 * detect the AD1845 device ... 1056 */ 1057 err = create_ad1845(card, wss_port[dev], irq[dev], 1058 dma[dev], dma2[dev]); 1059 if (err < 0) { 1060 snd_printk(KERN_ERR 1061 "sscape: No AD1845 device at 0x%lx, IRQ %d\n", 1062 wss_port[dev], irq[dev]); 1063 goto _release_dma; 1064 } 1065 strcpy(card->driver, "SoundScape"); 1066 strcpy(card->shortname, name); 1067 snprintf(card->longname, sizeof(card->longname), 1068 "%s at 0x%lx, IRQ %d, DMA1 %d, DMA2 %d\n", 1069 name, sscape->chip->port, sscape->chip->irq, 1070 sscape->chip->dma1, sscape->chip->dma2); 1071 1072 #define MIDI_DEVNUM 0 1073 if (sscape->type != SSCAPE_VIVO) { 1074 err = sscape_upload_bootblock(card); 1075 if (err >= 0) 1076 err = sscape_upload_microcode(card, err); 1077 1078 if (err == 0) { 1079 err = create_mpu401(card, MIDI_DEVNUM, port[dev], 1080 mpu_irq[dev]); 1081 if (err < 0) { 1082 snd_printk(KERN_ERR "sscape: Failed to create " 1083 "MPU-401 device at 0x%lx\n", 1084 port[dev]); 1085 goto _release_dma; 1086 } 1087 1088 /* 1089 * Initialize mixer 1090 */ 1091 spin_lock_irqsave(&sscape->lock, flags); 1092 sscape->midi_vol = 0; 1093 host_write_ctrl_unsafe(sscape->io_base, 1094 CMD_SET_MIDI_VOL, 100); 1095 host_write_ctrl_unsafe(sscape->io_base, 1096 sscape->midi_vol, 100); 1097 host_write_ctrl_unsafe(sscape->io_base, 1098 CMD_XXX_MIDI_VOL, 100); 1099 host_write_ctrl_unsafe(sscape->io_base, 1100 sscape->midi_vol, 100); 1101 host_write_ctrl_unsafe(sscape->io_base, 1102 CMD_SET_EXTMIDI, 100); 1103 host_write_ctrl_unsafe(sscape->io_base, 1104 0, 100); 1105 host_write_ctrl_unsafe(sscape->io_base, CMD_ACK, 100); 1106 1107 set_midi_mode_unsafe(sscape->io_base); 1108 spin_unlock_irqrestore(&sscape->lock, flags); 1109 } 1110 } 1111 1112 /* 1113 * Now that we have successfully created this sound card, 1114 * it is safe to store the pointer. 1115 * NOTE: we only register the sound card's "destructor" 1116 * function now that our "constructor" has completed. 1117 */ 1118 card->private_free = soundscape_free; 1119 1120 return 0; 1121 1122 _release_dma: 1123 free_dma(dma[dev]); 1124 1125 _release_region: 1126 release_and_free_resource(wss_res); 1127 release_and_free_resource(io_res); 1128 1129 return err; 1130 } 1131 1132 1133 static int snd_sscape_match(struct device *pdev, unsigned int i) 1134 { 1135 /* 1136 * Make sure we were given ALL of the other parameters. 1137 */ 1138 if (port[i] == SNDRV_AUTO_PORT) 1139 return 0; 1140 1141 if (irq[i] == SNDRV_AUTO_IRQ || 1142 mpu_irq[i] == SNDRV_AUTO_IRQ || 1143 dma[i] == SNDRV_AUTO_DMA) { 1144 printk(KERN_INFO 1145 "sscape: insufficient parameters, " 1146 "need IO, IRQ, MPU-IRQ and DMA\n"); 1147 return 0; 1148 } 1149 1150 return 1; 1151 } 1152 1153 static int snd_sscape_probe(struct device *pdev, unsigned int dev) 1154 { 1155 struct snd_card *card; 1156 struct soundscape *sscape; 1157 int ret; 1158 1159 ret = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE, 1160 sizeof(struct soundscape), &card); 1161 if (ret < 0) 1162 return ret; 1163 1164 sscape = get_card_soundscape(card); 1165 sscape->type = SSCAPE; 1166 1167 dma[dev] &= 0x03; 1168 1169 ret = create_sscape(dev, card); 1170 if (ret < 0) 1171 goto _release_card; 1172 1173 ret = snd_card_register(card); 1174 if (ret < 0) { 1175 snd_printk(KERN_ERR "sscape: Failed to register sound card\n"); 1176 goto _release_card; 1177 } 1178 dev_set_drvdata(pdev, card); 1179 return 0; 1180 1181 _release_card: 1182 snd_card_free(card); 1183 return ret; 1184 } 1185 1186 static int snd_sscape_remove(struct device *devptr, unsigned int dev) 1187 { 1188 snd_card_free(dev_get_drvdata(devptr)); 1189 return 0; 1190 } 1191 1192 #define DEV_NAME "sscape" 1193 1194 static struct isa_driver snd_sscape_driver = { 1195 .match = snd_sscape_match, 1196 .probe = snd_sscape_probe, 1197 .remove = snd_sscape_remove, 1198 /* FIXME: suspend/resume */ 1199 .driver = { 1200 .name = DEV_NAME 1201 }, 1202 }; 1203 1204 #ifdef CONFIG_PNP 1205 static inline int get_next_autoindex(int i) 1206 { 1207 while (i < SNDRV_CARDS && port[i] != SNDRV_AUTO_PORT) 1208 ++i; 1209 return i; 1210 } 1211 1212 1213 static int sscape_pnp_detect(struct pnp_card_link *pcard, 1214 const struct pnp_card_device_id *pid) 1215 { 1216 static int idx = 0; 1217 struct pnp_dev *dev; 1218 struct snd_card *card; 1219 struct soundscape *sscape; 1220 int ret; 1221 1222 /* 1223 * Allow this function to fail *quietly* if all the ISA PnP 1224 * devices were configured using module parameters instead. 1225 */ 1226 idx = get_next_autoindex(idx); 1227 if (idx >= SNDRV_CARDS) 1228 return -ENOSPC; 1229 1230 /* 1231 * Check that we still have room for another sound card ... 1232 */ 1233 dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL); 1234 if (!dev) 1235 return -ENODEV; 1236 1237 if (!pnp_is_active(dev)) { 1238 if (pnp_activate_dev(dev) < 0) { 1239 snd_printk(KERN_INFO "sscape: device is inactive\n"); 1240 return -EBUSY; 1241 } 1242 } 1243 1244 /* 1245 * Create a new ALSA sound card entry, in anticipation 1246 * of detecting our hardware ... 1247 */ 1248 ret = snd_card_new(&pcard->card->dev, 1249 index[idx], id[idx], THIS_MODULE, 1250 sizeof(struct soundscape), &card); 1251 if (ret < 0) 1252 return ret; 1253 1254 sscape = get_card_soundscape(card); 1255 1256 /* 1257 * Identify card model ... 1258 */ 1259 if (!strncmp("ENS4081", pid->id, 7)) 1260 sscape->type = SSCAPE_VIVO; 1261 else 1262 sscape->type = SSCAPE_PNP; 1263 1264 /* 1265 * Read the correct parameters off the ISA PnP bus ... 1266 */ 1267 port[idx] = pnp_port_start(dev, 0); 1268 irq[idx] = pnp_irq(dev, 0); 1269 mpu_irq[idx] = pnp_irq(dev, 1); 1270 dma[idx] = pnp_dma(dev, 0) & 0x03; 1271 if (sscape->type == SSCAPE_PNP) { 1272 dma2[idx] = dma[idx]; 1273 wss_port[idx] = CODEC_IO(port[idx]); 1274 } else { 1275 wss_port[idx] = pnp_port_start(dev, 1); 1276 dma2[idx] = pnp_dma(dev, 1); 1277 } 1278 1279 ret = create_sscape(idx, card); 1280 if (ret < 0) 1281 goto _release_card; 1282 1283 ret = snd_card_register(card); 1284 if (ret < 0) { 1285 snd_printk(KERN_ERR "sscape: Failed to register sound card\n"); 1286 goto _release_card; 1287 } 1288 1289 pnp_set_card_drvdata(pcard, card); 1290 ++idx; 1291 return 0; 1292 1293 _release_card: 1294 snd_card_free(card); 1295 return ret; 1296 } 1297 1298 static void sscape_pnp_remove(struct pnp_card_link *pcard) 1299 { 1300 snd_card_free(pnp_get_card_drvdata(pcard)); 1301 pnp_set_card_drvdata(pcard, NULL); 1302 } 1303 1304 static struct pnp_card_driver sscape_pnpc_driver = { 1305 .flags = PNP_DRIVER_RES_DO_NOT_CHANGE, 1306 .name = "sscape", 1307 .id_table = sscape_pnpids, 1308 .probe = sscape_pnp_detect, 1309 .remove = sscape_pnp_remove, 1310 }; 1311 1312 #endif /* CONFIG_PNP */ 1313 1314 static int __init sscape_init(void) 1315 { 1316 int err; 1317 1318 err = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS); 1319 #ifdef CONFIG_PNP 1320 if (!err) 1321 isa_registered = 1; 1322 1323 err = pnp_register_card_driver(&sscape_pnpc_driver); 1324 if (!err) 1325 pnp_registered = 1; 1326 1327 if (isa_registered) 1328 err = 0; 1329 #endif 1330 return err; 1331 } 1332 1333 static void __exit sscape_exit(void) 1334 { 1335 #ifdef CONFIG_PNP 1336 if (pnp_registered) 1337 pnp_unregister_card_driver(&sscape_pnpc_driver); 1338 if (isa_registered) 1339 #endif 1340 isa_unregister_driver(&snd_sscape_driver); 1341 } 1342 1343 module_init(sscape_init); 1344 module_exit(sscape_exit); 1345