pas.c revision 1.63
1/* $NetBSD: pas.c,v 1.63 2006/09/03 06:46:22 christos 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/cdefs.h> 60__KERNEL_RCSID(0, "$NetBSD: pas.c,v 1.63 2006/09/03 06:46:22 christos Exp $"); 61 62#include <sys/param.h> 63#include <sys/systm.h> 64#include <sys/errno.h> 65#include <sys/ioctl.h> 66#include <sys/syslog.h> 67#include <sys/device.h> 68#include <sys/proc.h> 69 70#include <machine/cpu.h> 71#include <machine/intr.h> 72#include <machine/bus.h> 73#include <machine/pio.h> 74 75#include <sys/audioio.h> 76#include <dev/audio_if.h> 77#include <dev/midi_if.h> 78 79#include <dev/isa/isavar.h> 80#include <dev/isa/isadmavar.h> 81 82#include <dev/isa/sbdspvar.h> 83#include <dev/isa/sbreg.h> 84 85#define DEFINE_TRANSLATIONS 86#include <dev/isa/pasreg.h> 87 88#ifdef AUDIO_DEBUG 89#define DPRINTF(x) if (pasdebug) printf x 90int pasdebug = 0; 91#else 92#define DPRINTF(x) 93#endif 94 95/* 96 * Software state, per SoundBlaster card. 97 * The soundblaster has multiple functionality, which we must demultiplex. 98 * One approach is to have one major device number for the soundblaster card, 99 * and use different minor numbers to indicate which hardware function 100 * we want. This would make for one large driver. Instead our approach 101 * is to partition the design into a set of drivers that share an underlying 102 * piece of hardware. Most things are hard to share, for example, the audio 103 * and midi ports. For audio, we might want to mix two processes' signals, 104 * and for midi we might want to merge streams (this is hard due to 105 * running status). Moreover, we should be able to re-use the high-level 106 * modules with other kinds of hardware. In this module, we only handle the 107 * most basic communications with the sb card. 108 */ 109struct pas_softc { 110 struct sbdsp_softc sc_sbdsp; /* base device, &c. */ 111 bus_space_handle_t pas_port_handle; /* the pas-specific port */ 112 113 int model; 114 int rev; 115}; 116 117int pas_getdev(void *, struct audio_device *); 118void pasconf(int, int, int, int); 119 120 121/* 122 * Define our interface to the higher level audio driver. 123 */ 124 125const struct audio_hw_if pas_hw_if = { 126 sbdsp_open, 127 sbdsp_close, 128 0, 129 sbdsp_query_encoding, 130 sbdsp_set_params, 131 sbdsp_round_blocksize, 132 0, 133 0, 134 0, 135 0, 136 0, 137 sbdsp_halt_output, 138 sbdsp_halt_input, 139 sbdsp_speaker_ctl, 140 pas_getdev, 141 0, 142 sbdsp_mixer_set_port, 143 sbdsp_mixer_get_port, 144 sbdsp_mixer_query_devinfo, 145 sb_malloc, 146 sb_free, 147 sb_round_buffersize, 148 sb_mappage, 149 sbdsp_get_props, 150 sbdsp_trigger_output, 151 sbdsp_trigger_input, 152 0, 153 NULL, 154}; 155 156/* The Address Translation code is used to convert I/O register addresses to 157 be relative to the given base -register */ 158 159static const char *pasnames[] = { 160 "", 161 "Plus", 162 "CDPC", 163 "16", 164 "16Basic" 165}; 166 167static struct audio_device pas_device = { 168 "PAS,??", 169 "", 170 "pas" 171}; 172 173/*XXX assume default I/O base address */ 174#define pasread(p) inb((p)) 175#define paswrite(d, p) outb((p), (d)) 176 177void 178pasconf(int model, int sbbase, int sbirq, int sbdrq) 179{ 180 181 paswrite(0x00, INTERRUPT_MASK); 182 /* Local timer control register */ 183 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 184 /* Sample rate timer (16 bit) */ 185 paswrite(0x36, SAMPLE_RATE_TIMER); 186 paswrite(0, SAMPLE_RATE_TIMER); 187 /* Local timer control register */ 188 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 189 /* Sample count register (16 bit) */ 190 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 191 paswrite(0, SAMPLE_BUFFER_COUNTER); 192 193 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 194 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 195 PCM_CONTROL); 196 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 197 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 198 199/*XXX*/ 200 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 201 202 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 203 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 204 205#ifdef BROKEN_BUS_CLOCK 206 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 207 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 208#else 209 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 210 SYSTEM_CONFIGURATION_1); 211#endif 212 213 /*XXX*/ 214 paswrite(0, SYSTEM_CONFIGURATION_2); 215 paswrite(0, SYSTEM_CONFIGURATION_3); 216 217 /* Sets mute off and selects filter rate of 17.897 kHz */ 218 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 219 220 if (model == PAS_16 || model == PAS_16BASIC) 221 paswrite(8, PRESCALE_DIVIDER); 222 else 223 paswrite(0, PRESCALE_DIVIDER); 224 225 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 226 paswrite(5, PARALLEL_MIXER); 227 228 /* 229 * Setup SoundBlaster emulation. 230 */ 231 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 232 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 233 EMULATION_CONFIGURATION); 234 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 235 236 /* 237 * Set mid-range levels. 238 */ 239 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 240 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 241 242 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 243 paswrite(50, PARALLEL_MIXER); 244 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 245 paswrite(50, PARALLEL_MIXER); 246 247 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, 248 PARALLEL_MIXER); 249 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 250 251 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, 252 PARALLEL_MIXER); 253 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 254} 255 256int pasprobe(struct device *, struct cfdata *, void *); 257void pasattach(struct device *, struct device *, void *); 258static int pasfind(struct device *, struct pas_softc *, 259 struct isa_attach_args *, int); 260/* argument to pasfind */ 261#define PASPROBE 1 262#define PASATTACH 0 263 264CFATTACH_DECL(pas, sizeof(struct pas_softc), 265 pasprobe, pasattach, NULL, NULL); 266 267/* 268 * Probe / attach routines. 269 */ 270 271int 272pasprobe(struct device *parent, struct cfdata *match, void *aux) 273{ 274 struct isa_attach_args *ia; 275 struct pas_softc probesc, *sc; 276 277 ia = aux; 278 sc = &probesc; 279 if (ia->ia_nio < 1) 280 return 0; 281 if (ia->ia_nirq < 1) 282 return 0; 283 if (ia->ia_ndrq < 1) 284 return 0; 285 286 if (ISA_DIRECT_CONFIG(ia)) 287 return 0; 288 289 memset(sc, 0, sizeof *sc); 290 sc->sc_sbdsp.sc_dev.dv_cfdata = match; 291 strcpy(sc->sc_sbdsp.sc_dev.dv_xname, "pas"); 292 return pasfind(parent, sc, aux, PASPROBE); 293} 294 295/* 296 * Probe for the soundblaster hardware. 297 */ 298static int 299pasfind(struct device *parent, struct pas_softc *sc, 300 struct isa_attach_args *ia, int probing) 301{ 302 int iobase; 303 u_char id, t; 304 int rc; 305 306 rc = 0; /* failure */ 307 /* ensure we can set this up as a sound blaster */ 308 if (!SB_BASE_VALID(ia->ia_io[0].ir_addr)) { 309 printf("pas: configured SB iobase 0x%x invalid\n", 310 ia->ia_io[0].ir_addr); 311 return 0; 312 } 313 314 if (bus_space_map(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1, 0, 315 &sc->pas_port_handle)) { 316 printf("pas: can't map base register %x in probe\n", 317 PAS_DEFAULT_BASE); 318 return 0; 319 } 320 321 /* 322 * WARNING: Setting an option like W:1 or so that disables 323 * warm boot reset of the card will screw up this detect code 324 * something fierce. Adding code to handle this means possibly 325 * interfering with other cards on the bus if you have something 326 * on base port 0x388. SO be forewarned. 327 */ 328 /* Talk to first board */ 329 outb(MASTER_DECODE, 0xbc); 330 /* Set base address */ 331 332#if 0 333 /* XXX Need to setup pseudo device */ 334 /* XXX What are good io addrs ? */ 335 if (iobase != PAS_DEFAULT_BASE) { 336 printf("pas: configured iobase %d invalid\n", iobase); 337 return 0; 338 } 339#else 340 /* Start out talking to native PAS */ 341 iobase = PAS_DEFAULT_BASE; 342#endif 343 344 outb(MASTER_DECODE, iobase >> 2); 345 /* One wait-state */ 346 paswrite(1, WAIT_STATE); 347 348 id = pasread(INTERRUPT_MASK); 349 if (id == 0xff || id == 0xfe) { 350 /* sanity */ 351 DPRINTF(("pas: bogus card id\n")); 352 goto unmap1; 353 } 354 /* 355 * We probably have a PAS-series board, now check for a 356 * PAS2-series board by trying to change the board revision 357 * bits. PAS2-series hardware won't let you do this because 358 * the bits are read-only. 359 */ 360 t = id ^ 0xe0; 361 paswrite(t, INTERRUPT_MASK); 362 t = inb(INTERRUPT_MASK); 363 paswrite(id, INTERRUPT_MASK); 364 365 if (t != id) { 366 /* Not a PAS2 */ 367 printf("pas: detected card but PAS2 test failed\n"); 368 goto unmap1; 369 } 370 /*XXX*/ 371 t = pasread(OPERATION_MODE_1) & 0xf; 372 sc->model = O_M_1_to_card[t]; 373 if (sc->model != 0) { 374 sc->rev = pasread(BOARD_REV_ID); 375 } else { 376 DPRINTF(("pas: bogus model id\n")); 377 goto unmap1; 378 } 379 380 if (sc->model >= 0) { 381 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) { 382 printf("pas: sb emulation requires known irq\n"); 383 goto unmap1; 384 } 385 pasconf(sc->model, ia->ia_io[0].ir_addr, 386 ia->ia_irq[0].ir_irq, 1); 387 } else { 388 DPRINTF(("pas: could not probe pas\n")); 389 goto unmap1; 390 } 391 392 /* Now a SoundBlaster, so set up proper bus-space hooks 393 * appropriately 394 */ 395 396 sc->sc_sbdsp.sc_iobase = ia->ia_io[0].ir_addr; 397 sc->sc_sbdsp.sc_iot = ia->ia_iot; 398 399 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 400 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_io[0].ir_addr, 401 SBP_NPORT, 0, &sc->sc_sbdsp.sc_ioh)) { 402 printf("pas: can't map i/o space 0x%x/%d in probe\n", 403 ia->ia_io[0].ir_addr, SBP_NPORT); 404 goto unmap1; 405 } 406 407 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 408 DPRINTF(("pas: couldn't reset card\n")); 409 goto unmap; 410 } 411 412 /* 413 * Cannot auto-discover DMA channel. 414 */ 415 if (!SB_DRQ_VALID(ia->ia_drq[0].ir_drq)) { 416 printf("pas: configured DMA chan %d invalid\n", 417 ia->ia_drq[0].ir_drq); 418 goto unmap; 419 } 420 if (!SB_IRQ_VALID(ia->ia_irq[0].ir_irq)) { 421 printf("pas: configured irq chan %d invalid\n", 422 ia->ia_drq[0].ir_drq); 423 goto unmap; 424 } 425 426 sc->sc_sbdsp.sc_irq = ia->ia_irq[0].ir_irq; 427 sc->sc_sbdsp.sc_drq8 = ia->ia_drq[0].ir_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; 436 437 if (probing) { 438 ia->ia_nio = 1; 439 ia->ia_io[0].ir_size = SBP_NPORT; 440 441 ia->ia_nirq = 1; 442 ia->ia_ndrq = 1; 443 444 ia->ia_niomem = 0; 445 } 446 447 unmap: 448 if (rc == 0 || probing) 449 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, 450 SBP_NPORT); 451 unmap1: 452 if (rc == 0 || probing) 453 bus_space_unmap(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1); 454 return rc; 455} 456 457/* 458 * Attach hardware to driver, attach hardware driver to audio 459 * pseudo-device driver . 460 */ 461void 462pasattach(struct device *parent, struct device *self, void *aux) 463{ 464 struct pas_softc *sc; 465 struct isa_attach_args *ia; 466 int iobase; 467 468 sc = (struct pas_softc *)self; 469 ia = (struct isa_attach_args *)aux; 470 iobase = ia->ia_io[0].ir_addr; 471 if (!pasfind(parent, sc, ia, PASATTACH)) { 472 printf("%s: pasfind failed\n", sc->sc_sbdsp.sc_dev.dv_xname); 473 return; 474 } 475 476 sc->sc_sbdsp.sc_ic = ia->ia_ic; 477 sc->sc_sbdsp.sc_iobase = iobase; 478 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 479 IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp); 480 481 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], 482 sc->rev); 483 484 sbdsp_attach(&sc->sc_sbdsp); 485 486 snprintf(pas_device.name, sizeof(pas_device.name), "pas,%s", 487 pasnames[sc->model]); 488 snprintf(pas_device.version, sizeof(pas_device.version), "%d", 489 sc->rev); 490 491 audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev); 492} 493 494int 495pas_getdev(void *addr, struct audio_device *retp) 496{ 497 498 *retp = pas_device; 499 return 0; 500} 501