1 /* $NetBSD: pas.c,v 1.50 2001/10/03 00:04:50 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1991-1993 Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the Computer Systems 18 * Engineering Group at Lawrence Berkeley Laboratory. 19 * 4. Neither the name of the University nor of the Laboratory may be used 20 * to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 /* 37 * jfw 7/13/97 - The soundblaster code requires the generic bus-space 38 * structures to be set up properly. Rather than go to the effort of making 39 * code for a dead line fully generic, properly set up the SB structures and 40 * leave the rest x86/ISA/default-configuration specific. If you have a 41 * REAL computer, go buy a REAL sound card. 42 */ 43 /* 44 * Todo: 45 * - look at other PAS drivers (for PAS native suport) 46 * - use common sb.c once emulation is setup 47 */ 48 /* 49 * jfw 6/21/98 - WARNING: the PAS native IO ports are scattered all around 50 * IO port space (0x0388, 0x738B, 0xBF88, 0x2789, ...) which will make proper 51 * reservation a real pain, so I'm not going to do it (while fixing the 52 * current reservation code to "work"). As a sanity check, I reserve the 53 * 0x0388 base address, but you probably shouldn't even think of trying this 54 * driver unless you're certain you have the hardware installed and it doesn't 55 * conflict with other hardware... 56 */ 57 58 59 #include <sys/param.h> 60 #include <sys/systm.h> 61 #include <sys/errno.h> 62 #include <sys/ioctl.h> 63 #include <sys/syslog.h> 64 #include <sys/device.h> 65 #include <sys/proc.h> 66 67 #include <machine/cpu.h> 68 #include <machine/intr.h> 69 #include <machine/bus.h> 70 #include <machine/pio.h> 71 72 #include <sys/audioio.h> 73 #include <dev/audio_if.h> 74 #include <dev/midi_if.h> 75 76 #include <dev/isa/isavar.h> 77 #include <dev/isa/isadmavar.h> 78 79 #include <dev/isa/sbdspvar.h> 80 #include <dev/isa/sbreg.h> 81 82 #define DEFINE_TRANSLATIONS 83 #include <dev/isa/pasreg.h> 84 85 #ifdef AUDIO_DEBUG 86 #define DPRINTF(x) if (pasdebug) printf x 87 int pasdebug = 0; 88 #else 89 #define DPRINTF(x) 90 #endif 91 92 /* 93 * Software state, per SoundBlaster card. 94 * The soundblaster has multiple functionality, which we must demultiplex. 95 * One approach is to have one major device number for the soundblaster card, 96 * and use different minor numbers to indicate which hardware function 97 * we want. This would make for one large driver. Instead our approach 98 * is to partition the design into a set of drivers that share an underlying 99 * piece of hardware. Most things are hard to share, for example, the audio 100 * and midi ports. For audio, we might want to mix two processes' signals, 101 * and for midi we might want to merge streams (this is hard due to 102 * running status). Moreover, we should be able to re-use the high-level 103 * modules with other kinds of hardware. In this module, we only handle the 104 * most basic communications with the sb card. 105 */ 106 struct pas_softc { 107 struct sbdsp_softc sc_sbdsp; /* base device, &c. */ 108 bus_space_handle_t pas_port_handle; /* the pas-specific port */ 109 110 int model; 111 int rev; 112 }; 113 114 int pas_getdev __P((void *, struct audio_device *)); 115 void pasconf __P((int, int, int, int)); 116 117 118 /* 119 * Define our interface to the higher level audio driver. 120 */ 121 122 struct audio_hw_if pas_hw_if = { 123 sbdsp_open, 124 sbdsp_close, 125 0, 126 sbdsp_query_encoding, 127 sbdsp_set_params, 128 sbdsp_round_blocksize, 129 0, 130 0, 131 0, 132 0, 133 0, 134 sbdsp_halt_output, 135 sbdsp_halt_input, 136 sbdsp_speaker_ctl, 137 pas_getdev, 138 0, 139 sbdsp_mixer_set_port, 140 sbdsp_mixer_get_port, 141 sbdsp_mixer_query_devinfo, 142 sb_malloc, 143 sb_free, 144 sb_round_buffersize, 145 sb_mappage, 146 sbdsp_get_props, 147 sbdsp_trigger_output, 148 sbdsp_trigger_input, 149 0, 150 }; 151 152 /* The Address Translation code is used to convert I/O register addresses to 153 be relative to the given base -register */ 154 155 static char *pasnames[] = { 156 "", 157 "Plus", 158 "CDPC", 159 "16", 160 "16Basic" 161 }; 162 163 static struct audio_device pas_device = { 164 "PAS,??", 165 "", 166 "pas" 167 }; 168 169 /*XXX assume default I/O base address */ 170 #define pasread(p) inb((p)) 171 #define paswrite(d, p) outb((p), (d)) 172 173 void 174 pasconf(model, sbbase, sbirq, sbdrq) 175 int model; 176 int sbbase; 177 int sbirq; 178 int sbdrq; 179 { 180 paswrite(0x00, INTERRUPT_MASK); 181 /* Local timer control register */ 182 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 183 /* Sample rate timer (16 bit) */ 184 paswrite(0x36, SAMPLE_RATE_TIMER); 185 paswrite(0, SAMPLE_RATE_TIMER); 186 /* Local timer control register */ 187 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 188 /* Sample count register (16 bit) */ 189 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 190 paswrite(0, SAMPLE_BUFFER_COUNTER); 191 192 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 193 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 194 PCM_CONTROL); 195 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 196 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 197 198 /*XXX*/ 199 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 200 201 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 202 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 203 204 #ifdef BROKEN_BUS_CLOCK 205 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 206 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 207 #else 208 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 209 SYSTEM_CONFIGURATION_1); 210 #endif 211 212 /*XXX*/ 213 paswrite(0, SYSTEM_CONFIGURATION_2); 214 paswrite(0, SYSTEM_CONFIGURATION_3); 215 216 /* Sets mute off and selects filter rate of 17.897 kHz */ 217 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 218 219 if (model == PAS_16 || model == PAS_16BASIC) 220 paswrite(8, PRESCALE_DIVIDER); 221 else 222 paswrite(0, PRESCALE_DIVIDER); 223 224 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 225 paswrite(5, PARALLEL_MIXER); 226 227 /* 228 * Setup SoundBlaster emulation. 229 */ 230 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 231 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 232 EMULATION_CONFIGURATION); 233 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 234 235 /* 236 * Set mid-range levels. 237 */ 238 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 239 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 240 241 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 242 paswrite(50, PARALLEL_MIXER); 243 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 244 paswrite(50, PARALLEL_MIXER); 245 246 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER); 247 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 248 249 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER); 250 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 251 } 252 253 int pasprobe __P((struct device *, struct cfdata *, void *)); 254 void pasattach __P((struct device *, struct device *, void *)); 255 static int pasfind __P((struct device *, struct pas_softc *, 256 struct isa_attach_args *, int)); 257 /* argument to pasfind */ 258 #define PASPROBE 1 259 #define PASATTACH 0 260 261 struct cfattach pas_ca = { 262 sizeof(struct pas_softc), pasprobe, pasattach 263 }; 264 265 /* 266 * Probe / attach routines. 267 */ 268 269 int 270 pasprobe(parent, match, aux) 271 struct device *parent; 272 struct cfdata *match; 273 void *aux; 274 { 275 struct pas_softc probesc, *sc = &probesc; 276 277 memset(sc, 0, sizeof *sc); 278 sc->sc_sbdsp.sc_dev.dv_cfdata = match; 279 strcpy(sc->sc_sbdsp.sc_dev.dv_xname, "pas"); 280 return pasfind(parent, sc, aux, PASPROBE); 281 } 282 283 /* 284 * Probe for the soundblaster hardware. 285 */ 286 static int 287 pasfind(parent, sc, ia, probing) 288 struct device *parent; 289 struct pas_softc *sc; 290 struct isa_attach_args *ia; 291 int probing; 292 { 293 int iobase; 294 u_char id, t; 295 int rc = 0; /* failure */ 296 297 /* ensure we can set this up as a sound blaster */ 298 if (!SB_BASE_VALID(ia->ia_iobase)) { 299 printf("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase); 300 return 0; 301 } 302 303 if (bus_space_map(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1, 0, 304 &sc->pas_port_handle)) { 305 printf("pas: can't map base register %x in probe\n", 306 PAS_DEFAULT_BASE); 307 return 0; 308 } 309 310 /* 311 * WARNING: Setting an option like W:1 or so that disables 312 * warm boot reset of the card will screw up this detect code 313 * something fierce. Adding code to handle this means possibly 314 * interfering with other cards on the bus if you have something 315 * on base port 0x388. SO be forewarned. 316 */ 317 /* Talk to first board */ 318 outb(MASTER_DECODE, 0xbc); 319 /* Set base address */ 320 321 #if 0 322 /* XXX Need to setup pseudo device */ 323 /* XXX What are good io addrs ? */ 324 if (iobase != PAS_DEFAULT_BASE) { 325 printf("pas: configured iobase %d invalid\n", iobase); 326 return 0; 327 } 328 #else 329 /* Start out talking to native PAS */ 330 iobase = PAS_DEFAULT_BASE; 331 #endif 332 333 outb(MASTER_DECODE, iobase >> 2); 334 /* One wait-state */ 335 paswrite(1, WAIT_STATE); 336 337 id = pasread(INTERRUPT_MASK); 338 if (id == 0xff || id == 0xfe) { 339 /* sanity */ 340 DPRINTF(("pas: bogus card id\n")); 341 goto unmap1; 342 } 343 /* 344 * We probably have a PAS-series board, now check for a 345 * PAS2-series board by trying to change the board revision 346 * bits. PAS2-series hardware won't let you do this because 347 * the bits are read-only. 348 */ 349 t = id ^ 0xe0; 350 paswrite(t, INTERRUPT_MASK); 351 t = inb(INTERRUPT_MASK); 352 paswrite(id, INTERRUPT_MASK); 353 354 if (t != id) { 355 /* Not a PAS2 */ 356 printf("pas: detected card but PAS2 test failed\n"); 357 goto unmap1; 358 } 359 /*XXX*/ 360 t = pasread(OPERATION_MODE_1) & 0xf; 361 sc->model = O_M_1_to_card[t]; 362 if (sc->model != 0) { 363 sc->rev = pasread(BOARD_REV_ID); 364 } 365 else { 366 DPRINTF(("pas: bogus model id\n")); 367 goto unmap1; 368 } 369 370 if (sc->model >= 0) { 371 if (ia->ia_irq == IRQUNK) { 372 printf("pas: sb emulation requires known irq\n"); 373 goto unmap1; 374 } 375 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1); 376 } else { 377 DPRINTF(("pas: could not probe pas\n")); 378 goto unmap1; 379 } 380 381 /* Now a SoundBlaster, so set up proper bus-space hooks 382 * appropriately 383 */ 384 385 sc->sc_sbdsp.sc_iobase = ia->ia_iobase; 386 sc->sc_sbdsp.sc_iot = ia->ia_iot; 387 388 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 389 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0, 390 &sc->sc_sbdsp.sc_ioh)) { 391 printf("pas: can't map i/o space 0x%x/%d in probe\n", 392 ia->ia_iobase, SBP_NPORT); 393 goto unmap1; 394 } 395 396 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 397 DPRINTF(("pas: couldn't reset card\n")); 398 goto unmap; 399 } 400 401 /* 402 * Cannot auto-discover DMA channel. 403 */ 404 if (!SB_DRQ_VALID(ia->ia_drq)) { 405 printf("pas: configured dma chan %d invalid\n", ia->ia_drq); 406 goto unmap; 407 } 408 #ifdef NEWCONFIG 409 /* 410 * If the IRQ wasn't compiled in, auto-detect it. 411 */ 412 if (ia->ia_irq == IRQUNK) { 413 ia->ia_irq = isa_discoverintr(pasforceintr, aux); 414 sbdsp_reset(&sc->sc_sbdsp); 415 if (!SB_IRQ_VALID(ia->ia_irq)) { 416 printf("pas: couldn't auto-detect interrupt"); 417 goto unmap; 418 } 419 } else 420 #endif 421 if (!SB_IRQ_VALID(ia->ia_irq)) { 422 printf("pas: configured irq chan %d invalid\n", ia->ia_irq); 423 goto unmap; 424 } 425 426 sc->sc_sbdsp.sc_irq = ia->ia_irq; 427 sc->sc_sbdsp.sc_drq8 = ia->ia_drq; 428 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */ 429 430 if (sbdsp_probe(&sc->sc_sbdsp) == 0) { 431 DPRINTF(("pas: sbdsp probe failed\n")); 432 goto unmap; 433 } 434 435 rc = 1; 436 ia->ia_iosize = SB_NPORT; 437 438 unmap: 439 if (rc == 0 || probing) 440 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT); 441 unmap1: 442 if (rc == 0 || probing) 443 bus_space_unmap(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1); 444 return rc; 445 } 446 447 #ifdef NEWCONFIG 448 void 449 pasforceintr(aux) 450 void *aux; 451 { 452 static char dmabuf; 453 struct isa_attach_args *ia = aux; 454 int iobase = ia->ia_iobase; 455 456 /* 457 * Set up a DMA read of one byte. 458 * XXX Note that at this point we haven't called 459 * at_setup_dmachan(). This is okay because it just 460 * allocates a buffer in case it needs to make a copy, 461 * and it won't need to make a copy for a 1 byte buffer. 462 * (I think that calling at_setup_dmachan() should be optional; 463 * if you don't call it, it will be called the first time 464 * it is needed (and you pay the latency). Also, you might 465 * never need the buffer anyway.) 466 */ 467 at_dma(DMAMODE_READ, &dmabuf, 1, ia->ia_drq); 468 if (pas_wdsp(iobase, SB_DSP_RDMA) == 0) { 469 (void)pas_wdsp(iobase, 0); 470 (void)pas_wdsp(iobase, 0); 471 } 472 } 473 #endif 474 475 /* 476 * Attach hardware to driver, attach hardware driver to audio 477 * pseudo-device driver . 478 */ 479 void 480 pasattach(parent, self, aux) 481 struct device *parent, *self; 482 void *aux; 483 { 484 struct pas_softc *sc = (struct pas_softc *)self; 485 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 486 int iobase = ia->ia_iobase; 487 488 if (!pasfind(parent, sc, ia, PASATTACH)) { 489 printf("%s: pasfind failed\n", sc->sc_sbdsp.sc_dev.dv_xname); 490 return; 491 } 492 493 sc->sc_sbdsp.sc_ic = ia->ia_ic; 494 sc->sc_sbdsp.sc_iobase = iobase; 495 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, 496 IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp); 497 498 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], 499 sc->rev); 500 501 sbdsp_attach(&sc->sc_sbdsp); 502 503 sprintf(pas_device.name, "pas,%s", pasnames[sc->model]); 504 sprintf(pas_device.version, "%d", sc->rev); 505 506 audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev); 507 } 508 509 int 510 pas_getdev(addr, retp) 511 void *addr; 512 struct audio_device *retp; 513 { 514 *retp = pas_device; 515 return 0; 516 } 517