pas.c revision 1.36
1/* $NetBSD: pas.c,v 1.36 1997/10/19 07:42:30 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#include <sys/param.h> 50#include <sys/systm.h> 51#include <sys/errno.h> 52#include <sys/ioctl.h> 53#include <sys/syslog.h> 54#include <sys/device.h> 55#include <sys/proc.h> 56 57#include <machine/cpu.h> 58#include <machine/intr.h> 59#include <machine/bus.h> 60#include <machine/pio.h> 61 62#include <sys/audioio.h> 63#include <dev/audio_if.h> 64 65#include <dev/isa/isavar.h> 66#include <dev/isa/isadmavar.h> 67 68#include <dev/isa/sbdspvar.h> 69#include <dev/isa/sbreg.h> 70 71#define DEFINE_TRANSLATIONS 72#include <dev/isa/pasreg.h> 73 74#ifdef AUDIO_DEBUG 75#define DPRINTF(x) if (pasdebug) printf x 76int pasdebug = 0; 77#else 78#define DPRINTF(x) 79#endif 80 81/* 82 * Software state, per SoundBlaster card. 83 * The soundblaster has multiple functionality, which we must demultiplex. 84 * One approach is to have one major device number for the soundblaster card, 85 * and use different minor numbers to indicate which hardware function 86 * we want. This would make for one large driver. Instead our approach 87 * is to partition the design into a set of drivers that share an underlying 88 * piece of hardware. Most things are hard to share, for example, the audio 89 * and midi ports. For audio, we might want to mix two processes' signals, 90 * and for midi we might want to merge streams (this is hard due to 91 * running status). Moreover, we should be able to re-use the high-level 92 * modules with other kinds of hardware. In this module, we only handle the 93 * most basic communications with the sb card. 94 */ 95struct pas_softc { 96 struct sbdsp_softc sc_sbdsp; /* base device, &c. */ 97 98 int model; 99 int rev; 100}; 101 102int pas_getdev __P((void *, struct audio_device *)); 103void pasconf __P((int, int, int, int)); 104 105 106/* 107 * Define our interface to the higher level audio driver. 108 */ 109 110struct audio_hw_if pas_hw_if = { 111 sbdsp_open, 112 sbdsp_close, 113 0, 114 sbdsp_query_encoding, 115 sbdsp_set_params, 116 sbdsp_round_blocksize, 117 0, 118 sbdsp_dma_init_output, 119 sbdsp_dma_init_input, 120 sbdsp_dma_output, 121 sbdsp_dma_input, 122 sbdsp_haltdma, 123 sbdsp_haltdma, 124 sbdsp_speaker_ctl, 125 pas_getdev, 126 0, 127 sbdsp_mixer_set_port, 128 sbdsp_mixer_get_port, 129 sbdsp_mixer_query_devinfo, 130 sb_malloc, 131 sb_free, 132 sb_round, 133 sb_mappage, 134 sbdsp_get_props, 135}; 136 137/* The Address Translation code is used to convert I/O register addresses to 138 be relative to the given base -register */ 139 140static char *pasnames[] = { 141 "", 142 "Plus", 143 "CDPC", 144 "16", 145 "16Basic" 146}; 147 148static struct audio_device pas_device = { 149 "PAS,??", 150 "", 151 "pas" 152}; 153 154/*XXX assume default I/O base address */ 155#define pasread(p) inb(p) 156#define paswrite(d, p) outb(p, d) 157 158void 159pasconf(model, sbbase, sbirq, sbdrq) 160 int model; 161 int sbbase; 162 int sbirq; 163 int sbdrq; 164{ 165 paswrite(0x00, INTERRUPT_MASK); 166 /* Local timer control register */ 167 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 168 /* Sample rate timer (16 bit) */ 169 paswrite(0x36, SAMPLE_RATE_TIMER); 170 paswrite(0, SAMPLE_RATE_TIMER); 171 /* Local timer control register */ 172 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 173 /* Sample count register (16 bit) */ 174 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 175 paswrite(0, SAMPLE_BUFFER_COUNTER); 176 177 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 178 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 179 PCM_CONTROL); 180 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 181 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 182 183/*XXX*/ 184 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 185 186 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 187 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 188 189#ifdef BROKEN_BUS_CLOCK 190 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 191 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 192#else 193 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 194 SYSTEM_CONFIGURATION_1); 195#endif 196 197 /*XXX*/ 198 paswrite(0, SYSTEM_CONFIGURATION_2); 199 paswrite(0, SYSTEM_CONFIGURATION_3); 200 201 /* Sets mute off and selects filter rate of 17.897 kHz */ 202 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 203 204 if (model == PAS_16 || model == PAS_16BASIC) 205 paswrite(8, PRESCALE_DIVIDER); 206 else 207 paswrite(0, PRESCALE_DIVIDER); 208 209 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 210 paswrite(5, PARALLEL_MIXER); 211 212 /* 213 * Setup SoundBlaster emulation. 214 */ 215 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 216 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 217 EMULATION_CONFIGURATION); 218 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 219 220 /* 221 * Set mid-range levels. 222 */ 223 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 224 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 225 226 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 227 paswrite(50, PARALLEL_MIXER); 228 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 229 paswrite(50, PARALLEL_MIXER); 230 231 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER); 232 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 233 234 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER); 235 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 236} 237 238int pasprobe __P((struct device *, void *, void *)); 239void pasattach __P((struct device *, struct device *, void *)); 240 241struct cfattach pas_ca = { 242 sizeof(struct pas_softc), pasprobe, pasattach 243}; 244 245struct cfdriver pas_cd = { 246 NULL, "pas", DV_DULL 247}; 248 249/* 250 * Probe / attach routines. 251 */ 252 253/* 254 * Probe for the soundblaster hardware. 255 */ 256int 257pasprobe(parent, match, aux) 258 struct device *parent; 259 void *match, *aux; 260{ 261 struct pas_softc *sc = match; 262 struct isa_attach_args *ia = aux; 263 int iobase; 264 u_char id, t; 265 266 /* ensure we can set this up as a sound blaster */ 267 if (!SB_BASE_VALID(ia->ia_iobase)) { 268 printf("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase); 269 return 0; 270 } 271 272 /* 273 * WARNING: Setting an option like W:1 or so that disables 274 * warm boot reset of the card will screw up this detect code 275 * something fierce. Adding code to handle this means possibly 276 * interfering with other cards on the bus if you have something 277 * on base port 0x388. SO be forewarned. 278 */ 279 /* Talk to first board */ 280 outb(MASTER_DECODE, 0xbc); 281 /* Set base address */ 282 283#if 0 284 /* XXX Need to setup pseudo device */ 285 /* XXX What are good io addrs ? */ 286 if (iobase != PAS_DEFAULT_BASE) { 287 printf("pas: configured iobase %d invalid\n", iobase); 288 return 0; 289 } 290#else 291 /* Start out talking to native PAS */ 292 iobase = PAS_DEFAULT_BASE; 293#endif 294 295 outb(MASTER_DECODE, iobase >> 2); 296 /* One wait-state */ 297 paswrite(1, WAIT_STATE); 298 299 id = pasread(INTERRUPT_MASK); 300 if (id == 0xff || id == 0xfe) { 301 /* sanity */ 302 DPRINTF(("pas: bogus card id\n")); 303 return 0; 304 } 305 /* 306 * We probably have a PAS-series board, now check for a 307 * PAS2-series board by trying to change the board revision 308 * bits. PAS2-series hardware won't let you do this because 309 * the bits are read-only. 310 */ 311 t = id ^ 0xe0; 312 paswrite(t, INTERRUPT_MASK); 313 t = inb(INTERRUPT_MASK); 314 paswrite(id, INTERRUPT_MASK); 315 316 if (t != id) { 317 /* Not a PAS2 */ 318 printf("pas: detected card but PAS2 test failed\n"); 319 return 0; 320 } 321 /*XXX*/ 322 t = pasread(OPERATION_MODE_1) & 0xf; 323 sc->model = O_M_1_to_card[t]; 324 if (sc->model != 0) { 325 sc->rev = pasread(BOARD_REV_ID); 326 } 327 else { 328 DPRINTF(("pas: bogus model id\n")); 329 return 0; 330 } 331 332 if (sc->model >= 0) { 333 if (ia->ia_irq == IRQUNK) { 334 printf("pas: sb emulation requires known irq\n"); 335 return (0); 336 } 337 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1); 338 } else { 339 DPRINTF(("pas: could not probe pas\n")); 340 return (0); 341 } 342 343 /* Now a SoundBlaster, so set up proper bus-space hooks 344 * appropriately 345 */ 346 347 sc->sc_sbdsp.sc_iobase = ia->ia_iobase; 348 sc->sc_sbdsp.sc_iot = ia->ia_iot; 349 350 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 351 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0, 352 &sc->sc_sbdsp.sc_ioh)) { 353 printf("pas: can't map i/o space 0x%x/%d in probe\n", 354 ia->ia_iobase, SBP_NPORT); 355 return 0; 356 } 357 358 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 359 DPRINTF(("pas: couldn't reset card\n")); 360 goto unmap; 361 } 362 363 /* 364 * Cannot auto-discover DMA channel. 365 */ 366 if (!SB_DRQ_VALID(ia->ia_drq)) { 367 printf("pas: configured dma chan %d invalid\n", ia->ia_drq); 368 goto unmap; 369 } 370#ifdef NEWCONFIG 371 /* 372 * If the IRQ wasn't compiled in, auto-detect it. 373 */ 374 if (ia->ia_irq == IRQUNK) { 375 ia->ia_irq = isa_discoverintr(pasforceintr, aux); 376 sbdsp_reset(&sc->sc_sbdsp); 377 if (!SB_IRQ_VALID(ia->ia_irq)) { 378 printf("pas: couldn't auto-detect interrupt"); 379 goto unmap; 380 } 381 } else 382#endif 383 if (!SB_IRQ_VALID(ia->ia_irq)) { 384 printf("pas: configured irq chan %d invalid\n", ia->ia_irq); 385 goto unmap; 386 } 387 388 sc->sc_sbdsp.sc_irq = ia->ia_irq; 389 sc->sc_sbdsp.sc_drq8 = ia->ia_drq; 390 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */ 391 392 if (sbdsp_probe(&sc->sc_sbdsp) == 0) { 393 DPRINTF(("pas: sbdsp probe failed\n")); 394 goto unmap; 395 } 396 397 ia->ia_iosize = SB_NPORT; 398 return 1; 399 400 unmap: 401 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT); 402 return 0; 403} 404 405#ifdef NEWCONFIG 406void 407pasforceintr(aux) 408 void *aux; 409{ 410 static char dmabuf; 411 struct isa_attach_args *ia = aux; 412 int iobase = ia->ia_iobase; 413 414 /* 415 * Set up a DMA read of one byte. 416 * XXX Note that at this point we haven't called 417 * at_setup_dmachan(). This is okay because it just 418 * allocates a buffer in case it needs to make a copy, 419 * and it won't need to make a copy for a 1 byte buffer. 420 * (I think that calling at_setup_dmachan() should be optional; 421 * if you don't call it, it will be called the first time 422 * it is needed (and you pay the latency). Also, you might 423 * never need the buffer anyway.) 424 */ 425 at_dma(DMAMODE_READ, &dmabuf, 1, ia->ia_drq); 426 if (pas_wdsp(iobase, SB_DSP_RDMA) == 0) { 427 (void)pas_wdsp(iobase, 0); 428 (void)pas_wdsp(iobase, 0); 429 } 430} 431#endif 432 433/* 434 * Attach hardware to driver, attach hardware driver to audio 435 * pseudo-device driver . 436 */ 437void 438pasattach(parent, self, aux) 439 struct device *parent, *self; 440 void *aux; 441{ 442 struct pas_softc *sc = (struct pas_softc *)self; 443 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 444 int iobase = ia->ia_iobase; 445 446 sc->sc_sbdsp.sc_iobase = iobase; 447 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, 448 IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp); 449 450 sc->sc_sbdsp.sc_isa = parent; 451 452 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], 453 sc->rev); 454 455 sbdsp_attach(&sc->sc_sbdsp); 456 457 sprintf(pas_device.name, "pas,%s", pasnames[sc->model]); 458 sprintf(pas_device.version, "%d", sc->rev); 459 460 audio_attach_mi(&pas_hw_if, 0, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev); 461} 462 463int 464pas_getdev(addr, retp) 465 void *addr; 466 struct audio_device *retp; 467{ 468 *retp = pas_device; 469 return 0; 470} 471