pas.c revision 1.46
1/* $NetBSD: pas.c,v 1.46 1999/02/18 07:08:36 mycroft 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 87int 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 */ 106struct 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 114int pas_getdev __P((void *, struct audio_device *)); 115void pasconf __P((int, int, int, int)); 116 117 118/* 119 * Define our interface to the higher level audio driver. 120 */ 121 122struct 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}; 150 151/* The Address Translation code is used to convert I/O register addresses to 152 be relative to the given base -register */ 153 154static char *pasnames[] = { 155 "", 156 "Plus", 157 "CDPC", 158 "16", 159 "16Basic" 160}; 161 162static struct audio_device pas_device = { 163 "PAS,??", 164 "", 165 "pas" 166}; 167 168/*XXX assume default I/O base address */ 169#define pasread(p) inb(p) 170#define paswrite(d, p) outb(p, d) 171 172void 173pasconf(model, sbbase, sbirq, sbdrq) 174 int model; 175 int sbbase; 176 int sbirq; 177 int sbdrq; 178{ 179 paswrite(0x00, INTERRUPT_MASK); 180 /* Local timer control register */ 181 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 182 /* Sample rate timer (16 bit) */ 183 paswrite(0x36, SAMPLE_RATE_TIMER); 184 paswrite(0, SAMPLE_RATE_TIMER); 185 /* Local timer control register */ 186 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 187 /* Sample count register (16 bit) */ 188 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 189 paswrite(0, SAMPLE_BUFFER_COUNTER); 190 191 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 192 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 193 PCM_CONTROL); 194 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 195 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 196 197/*XXX*/ 198 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 199 200 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 201 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 202 203#ifdef BROKEN_BUS_CLOCK 204 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 205 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 206#else 207 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 208 SYSTEM_CONFIGURATION_1); 209#endif 210 211 /*XXX*/ 212 paswrite(0, SYSTEM_CONFIGURATION_2); 213 paswrite(0, SYSTEM_CONFIGURATION_3); 214 215 /* Sets mute off and selects filter rate of 17.897 kHz */ 216 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 217 218 if (model == PAS_16 || model == PAS_16BASIC) 219 paswrite(8, PRESCALE_DIVIDER); 220 else 221 paswrite(0, PRESCALE_DIVIDER); 222 223 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 224 paswrite(5, PARALLEL_MIXER); 225 226 /* 227 * Setup SoundBlaster emulation. 228 */ 229 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 230 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 231 EMULATION_CONFIGURATION); 232 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 233 234 /* 235 * Set mid-range levels. 236 */ 237 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 238 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 239 240 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 241 paswrite(50, PARALLEL_MIXER); 242 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 243 paswrite(50, PARALLEL_MIXER); 244 245 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER); 246 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 247 248 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER); 249 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 250} 251 252int pasprobe __P((struct device *, struct cfdata *, void *)); 253void pasattach __P((struct device *, struct device *, void *)); 254static int pasfind __P((struct device *, struct pas_softc *, 255 struct isa_attach_args *, int)); 256/* argument to pasfind */ 257#define PASPROBE 1 258#define PASATTACH 0 259 260struct cfattach pas_ca = { 261 sizeof(struct pas_softc), pasprobe, pasattach 262}; 263 264/* 265 * Probe / attach routines. 266 */ 267 268int 269pasprobe(parent, match, aux) 270 struct device *parent; 271 struct cfdata *match; 272 void *aux; 273{ 274 struct pas_softc probesc, *sc = &probesc; 275 276 bzero(sc, sizeof *sc); 277 sc->sc_sbdsp.sc_dev.dv_cfdata = match; 278 strcpy(sc->sc_sbdsp.sc_dev.dv_xname, "pas"); 279 return pasfind(parent, sc, aux, PASPROBE); 280} 281 282/* 283 * Probe for the soundblaster hardware. 284 */ 285static int 286pasfind(parent, sc, ia, probing) 287 struct device *parent; 288 struct pas_softc *sc; 289 struct isa_attach_args *ia; 290 int probing; 291{ 292 int iobase; 293 u_char id, t; 294 int rc = 0; /* failure */ 295 296 /* ensure we can set this up as a sound blaster */ 297 if (!SB_BASE_VALID(ia->ia_iobase)) { 298 printf("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase); 299 return 0; 300 } 301 302 if (bus_space_map(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1, 0, 303 &sc->pas_port_handle)) { 304 printf("pas: can't map base register %x in probe\n", 305 PAS_DEFAULT_BASE); 306 return 0; 307 } 308 309 /* 310 * WARNING: Setting an option like W:1 or so that disables 311 * warm boot reset of the card will screw up this detect code 312 * something fierce. Adding code to handle this means possibly 313 * interfering with other cards on the bus if you have something 314 * on base port 0x388. SO be forewarned. 315 */ 316 /* Talk to first board */ 317 outb(MASTER_DECODE, 0xbc); 318 /* Set base address */ 319 320#if 0 321 /* XXX Need to setup pseudo device */ 322 /* XXX What are good io addrs ? */ 323 if (iobase != PAS_DEFAULT_BASE) { 324 printf("pas: configured iobase %d invalid\n", iobase); 325 return 0; 326 } 327#else 328 /* Start out talking to native PAS */ 329 iobase = PAS_DEFAULT_BASE; 330#endif 331 332 outb(MASTER_DECODE, iobase >> 2); 333 /* One wait-state */ 334 paswrite(1, WAIT_STATE); 335 336 id = pasread(INTERRUPT_MASK); 337 if (id == 0xff || id == 0xfe) { 338 /* sanity */ 339 DPRINTF(("pas: bogus card id\n")); 340 goto unmap1; 341 } 342 /* 343 * We probably have a PAS-series board, now check for a 344 * PAS2-series board by trying to change the board revision 345 * bits. PAS2-series hardware won't let you do this because 346 * the bits are read-only. 347 */ 348 t = id ^ 0xe0; 349 paswrite(t, INTERRUPT_MASK); 350 t = inb(INTERRUPT_MASK); 351 paswrite(id, INTERRUPT_MASK); 352 353 if (t != id) { 354 /* Not a PAS2 */ 355 printf("pas: detected card but PAS2 test failed\n"); 356 goto unmap1; 357 } 358 /*XXX*/ 359 t = pasread(OPERATION_MODE_1) & 0xf; 360 sc->model = O_M_1_to_card[t]; 361 if (sc->model != 0) { 362 sc->rev = pasread(BOARD_REV_ID); 363 } 364 else { 365 DPRINTF(("pas: bogus model id\n")); 366 goto unmap1; 367 } 368 369 if (sc->model >= 0) { 370 if (ia->ia_irq == IRQUNK) { 371 printf("pas: sb emulation requires known irq\n"); 372 goto unmap1; 373 } 374 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1); 375 } else { 376 DPRINTF(("pas: could not probe pas\n")); 377 goto unmap1; 378 } 379 380 /* Now a SoundBlaster, so set up proper bus-space hooks 381 * appropriately 382 */ 383 384 sc->sc_sbdsp.sc_iobase = ia->ia_iobase; 385 sc->sc_sbdsp.sc_iot = ia->ia_iot; 386 387 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 388 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0, 389 &sc->sc_sbdsp.sc_ioh)) { 390 printf("pas: can't map i/o space 0x%x/%d in probe\n", 391 ia->ia_iobase, SBP_NPORT); 392 goto unmap; 393 } 394 395 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 396 DPRINTF(("pas: couldn't reset card\n")); 397 goto unmap; 398 } 399 400 /* 401 * Cannot auto-discover DMA channel. 402 */ 403 if (!SB_DRQ_VALID(ia->ia_drq)) { 404 printf("pas: configured dma chan %d invalid\n", ia->ia_drq); 405 goto unmap; 406 } 407#ifdef NEWCONFIG 408 /* 409 * If the IRQ wasn't compiled in, auto-detect it. 410 */ 411 if (ia->ia_irq == IRQUNK) { 412 ia->ia_irq = isa_discoverintr(pasforceintr, aux); 413 sbdsp_reset(&sc->sc_sbdsp); 414 if (!SB_IRQ_VALID(ia->ia_irq)) { 415 printf("pas: couldn't auto-detect interrupt"); 416 goto unmap; 417 } 418 } else 419#endif 420 if (!SB_IRQ_VALID(ia->ia_irq)) { 421 printf("pas: configured irq chan %d invalid\n", ia->ia_irq); 422 goto unmap; 423 } 424 425 sc->sc_sbdsp.sc_irq = ia->ia_irq; 426 sc->sc_sbdsp.sc_drq8 = ia->ia_drq; 427 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */ 428 429 if (sbdsp_probe(&sc->sc_sbdsp) == 0) { 430 DPRINTF(("pas: sbdsp probe failed\n")); 431 goto unmap; 432 } 433 434 rc = 1; 435 ia->ia_iosize = SB_NPORT; 436 437 unmap: 438 if (rc == 0 || probing) 439 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT); 440 unmap1: 441 if (rc == 0 || probing) 442 bus_space_unmap(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1); 443 return rc; 444} 445 446#ifdef NEWCONFIG 447void 448pasforceintr(aux) 449 void *aux; 450{ 451 static char dmabuf; 452 struct isa_attach_args *ia = aux; 453 int iobase = ia->ia_iobase; 454 455 /* 456 * Set up a DMA read of one byte. 457 * XXX Note that at this point we haven't called 458 * at_setup_dmachan(). This is okay because it just 459 * allocates a buffer in case it needs to make a copy, 460 * and it won't need to make a copy for a 1 byte buffer. 461 * (I think that calling at_setup_dmachan() should be optional; 462 * if you don't call it, it will be called the first time 463 * it is needed (and you pay the latency). Also, you might 464 * never need the buffer anyway.) 465 */ 466 at_dma(DMAMODE_READ, &dmabuf, 1, ia->ia_drq); 467 if (pas_wdsp(iobase, SB_DSP_RDMA) == 0) { 468 (void)pas_wdsp(iobase, 0); 469 (void)pas_wdsp(iobase, 0); 470 } 471} 472#endif 473 474/* 475 * Attach hardware to driver, attach hardware driver to audio 476 * pseudo-device driver . 477 */ 478void 479pasattach(parent, self, aux) 480 struct device *parent, *self; 481 void *aux; 482{ 483 struct pas_softc *sc = (struct pas_softc *)self; 484 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 485 int iobase = ia->ia_iobase; 486 487 if (!pasfind(parent, sc, ia, PASATTACH)) { 488 printf("%s: pasfind failed\n", sc->sc_sbdsp.sc_dev.dv_xname); 489 return; 490 } 491 492 sc->sc_sbdsp.sc_ic = ia->ia_ic; 493 sc->sc_sbdsp.sc_iobase = iobase; 494 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, 495 IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp); 496 497 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], 498 sc->rev); 499 500 sbdsp_attach(&sc->sc_sbdsp); 501 502 sprintf(pas_device.name, "pas,%s", pasnames[sc->model]); 503 sprintf(pas_device.version, "%d", sc->rev); 504 505 audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev); 506} 507 508int 509pas_getdev(addr, retp) 510 void *addr; 511 struct audio_device *retp; 512{ 513 *retp = pas_device; 514 return 0; 515} 516