1 /* $NetBSD: pas.c,v 1.51 2001/11/13 08:01:27 lukem 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 1.51 2001/11/13 08:01:27 lukem 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 90 int 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 */ 109 struct 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 }; 116 117 int pas_getdev __P((void *, struct audio_device *)); 118 void pasconf __P((int, int, int, int)); 119 120 121 /* 122 * Define our interface to the higher level audio driver. 123 */ 124 125 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 }; 154 155 /* The Address Translation code is used to convert I/O register addresses to 156 be relative to the given base -register */ 157 158 static char *pasnames[] = { 159 "", 160 "Plus", 161 "CDPC", 162 "16", 163 "16Basic" 164 }; 165 166 static struct audio_device pas_device = { 167 "PAS,??", 168 "", 169 "pas" 170 }; 171 172 /*XXX assume default I/O base address */ 173 #define pasread(p) inb((p)) 174 #define paswrite(d, p) outb((p), (d)) 175 176 void 177 pasconf(model, sbbase, sbirq, sbdrq) 178 int model; 179 int sbbase; 180 int sbirq; 181 int sbdrq; 182 { 183 paswrite(0x00, INTERRUPT_MASK); 184 /* Local timer control register */ 185 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 186 /* Sample rate timer (16 bit) */ 187 paswrite(0x36, SAMPLE_RATE_TIMER); 188 paswrite(0, SAMPLE_RATE_TIMER); 189 /* Local timer control register */ 190 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 191 /* Sample count register (16 bit) */ 192 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 193 paswrite(0, SAMPLE_BUFFER_COUNTER); 194 195 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 196 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 197 PCM_CONTROL); 198 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 199 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 200 201 /*XXX*/ 202 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 203 204 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 205 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 206 207 #ifdef BROKEN_BUS_CLOCK 208 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 209 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 210 #else 211 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 212 SYSTEM_CONFIGURATION_1); 213 #endif 214 215 /*XXX*/ 216 paswrite(0, SYSTEM_CONFIGURATION_2); 217 paswrite(0, SYSTEM_CONFIGURATION_3); 218 219 /* Sets mute off and selects filter rate of 17.897 kHz */ 220 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 221 222 if (model == PAS_16 || model == PAS_16BASIC) 223 paswrite(8, PRESCALE_DIVIDER); 224 else 225 paswrite(0, PRESCALE_DIVIDER); 226 227 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 228 paswrite(5, PARALLEL_MIXER); 229 230 /* 231 * Setup SoundBlaster emulation. 232 */ 233 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 234 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 235 EMULATION_CONFIGURATION); 236 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 237 238 /* 239 * Set mid-range levels. 240 */ 241 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 242 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 243 244 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 245 paswrite(50, PARALLEL_MIXER); 246 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 247 paswrite(50, PARALLEL_MIXER); 248 249 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER); 250 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 251 252 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER); 253 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 254 } 255 256 int pasprobe __P((struct device *, struct cfdata *, void *)); 257 void pasattach __P((struct device *, struct device *, void *)); 258 static int pasfind __P((struct device *, struct pas_softc *, 259 struct isa_attach_args *, int)); 260 /* argument to pasfind */ 261 #define PASPROBE 1 262 #define PASATTACH 0 263 264 struct cfattach pas_ca = { 265 sizeof(struct pas_softc), pasprobe, pasattach 266 }; 267 268 /* 269 * Probe / attach routines. 270 */ 271 272 int 273 pasprobe(parent, match, aux) 274 struct device *parent; 275 struct cfdata *match; 276 void *aux; 277 { 278 struct pas_softc probesc, *sc = &probesc; 279 280 memset(sc, 0, sizeof *sc); 281 sc->sc_sbdsp.sc_dev.dv_cfdata = match; 282 strcpy(sc->sc_sbdsp.sc_dev.dv_xname, "pas"); 283 return pasfind(parent, sc, aux, PASPROBE); 284 } 285 286 /* 287 * Probe for the soundblaster hardware. 288 */ 289 static int 290 pasfind(parent, sc, ia, probing) 291 struct device *parent; 292 struct pas_softc *sc; 293 struct isa_attach_args *ia; 294 int probing; 295 { 296 int iobase; 297 u_char id, t; 298 int rc = 0; /* failure */ 299 300 /* ensure we can set this up as a sound blaster */ 301 if (!SB_BASE_VALID(ia->ia_iobase)) { 302 printf("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase); 303 return 0; 304 } 305 306 if (bus_space_map(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1, 0, 307 &sc->pas_port_handle)) { 308 printf("pas: can't map base register %x in probe\n", 309 PAS_DEFAULT_BASE); 310 return 0; 311 } 312 313 /* 314 * WARNING: Setting an option like W:1 or so that disables 315 * warm boot reset of the card will screw up this detect code 316 * something fierce. Adding code to handle this means possibly 317 * interfering with other cards on the bus if you have something 318 * on base port 0x388. SO be forewarned. 319 */ 320 /* Talk to first board */ 321 outb(MASTER_DECODE, 0xbc); 322 /* Set base address */ 323 324 #if 0 325 /* XXX Need to setup pseudo device */ 326 /* XXX What are good io addrs ? */ 327 if (iobase != PAS_DEFAULT_BASE) { 328 printf("pas: configured iobase %d invalid\n", iobase); 329 return 0; 330 } 331 #else 332 /* Start out talking to native PAS */ 333 iobase = PAS_DEFAULT_BASE; 334 #endif 335 336 outb(MASTER_DECODE, iobase >> 2); 337 /* One wait-state */ 338 paswrite(1, WAIT_STATE); 339 340 id = pasread(INTERRUPT_MASK); 341 if (id == 0xff || id == 0xfe) { 342 /* sanity */ 343 DPRINTF(("pas: bogus card id\n")); 344 goto unmap1; 345 } 346 /* 347 * We probably have a PAS-series board, now check for a 348 * PAS2-series board by trying to change the board revision 349 * bits. PAS2-series hardware won't let you do this because 350 * the bits are read-only. 351 */ 352 t = id ^ 0xe0; 353 paswrite(t, INTERRUPT_MASK); 354 t = inb(INTERRUPT_MASK); 355 paswrite(id, INTERRUPT_MASK); 356 357 if (t != id) { 358 /* Not a PAS2 */ 359 printf("pas: detected card but PAS2 test failed\n"); 360 goto unmap1; 361 } 362 /*XXX*/ 363 t = pasread(OPERATION_MODE_1) & 0xf; 364 sc->model = O_M_1_to_card[t]; 365 if (sc->model != 0) { 366 sc->rev = pasread(BOARD_REV_ID); 367 } 368 else { 369 DPRINTF(("pas: bogus model id\n")); 370 goto unmap1; 371 } 372 373 if (sc->model >= 0) { 374 if (ia->ia_irq == IRQUNK) { 375 printf("pas: sb emulation requires known irq\n"); 376 goto unmap1; 377 } 378 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1); 379 } else { 380 DPRINTF(("pas: could not probe pas\n")); 381 goto unmap1; 382 } 383 384 /* Now a SoundBlaster, so set up proper bus-space hooks 385 * appropriately 386 */ 387 388 sc->sc_sbdsp.sc_iobase = ia->ia_iobase; 389 sc->sc_sbdsp.sc_iot = ia->ia_iot; 390 391 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 392 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0, 393 &sc->sc_sbdsp.sc_ioh)) { 394 printf("pas: can't map i/o space 0x%x/%d in probe\n", 395 ia->ia_iobase, SBP_NPORT); 396 goto unmap1; 397 } 398 399 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 400 DPRINTF(("pas: couldn't reset card\n")); 401 goto unmap; 402 } 403 404 /* 405 * Cannot auto-discover DMA channel. 406 */ 407 if (!SB_DRQ_VALID(ia->ia_drq)) { 408 printf("pas: configured dma chan %d invalid\n", ia->ia_drq); 409 goto unmap; 410 } 411 #ifdef NEWCONFIG 412 /* 413 * If the IRQ wasn't compiled in, auto-detect it. 414 */ 415 if (ia->ia_irq == IRQUNK) { 416 ia->ia_irq = isa_discoverintr(pasforceintr, aux); 417 sbdsp_reset(&sc->sc_sbdsp); 418 if (!SB_IRQ_VALID(ia->ia_irq)) { 419 printf("pas: couldn't auto-detect interrupt"); 420 goto unmap; 421 } 422 } else 423 #endif 424 if (!SB_IRQ_VALID(ia->ia_irq)) { 425 printf("pas: configured irq chan %d invalid\n", ia->ia_irq); 426 goto unmap; 427 } 428 429 sc->sc_sbdsp.sc_irq = ia->ia_irq; 430 sc->sc_sbdsp.sc_drq8 = ia->ia_drq; 431 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */ 432 433 if (sbdsp_probe(&sc->sc_sbdsp) == 0) { 434 DPRINTF(("pas: sbdsp probe failed\n")); 435 goto unmap; 436 } 437 438 rc = 1; 439 ia->ia_iosize = SB_NPORT; 440 441 unmap: 442 if (rc == 0 || probing) 443 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT); 444 unmap1: 445 if (rc == 0 || probing) 446 bus_space_unmap(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1); 447 return rc; 448 } 449 450 #ifdef NEWCONFIG 451 void 452 pasforceintr(aux) 453 void *aux; 454 { 455 static char dmabuf; 456 struct isa_attach_args *ia = aux; 457 int iobase = ia->ia_iobase; 458 459 /* 460 * Set up a DMA read of one byte. 461 * XXX Note that at this point we haven't called 462 * at_setup_dmachan(). This is okay because it just 463 * allocates a buffer in case it needs to make a copy, 464 * and it won't need to make a copy for a 1 byte buffer. 465 * (I think that calling at_setup_dmachan() should be optional; 466 * if you don't call it, it will be called the first time 467 * it is needed (and you pay the latency). Also, you might 468 * never need the buffer anyway.) 469 */ 470 at_dma(DMAMODE_READ, &dmabuf, 1, ia->ia_drq); 471 if (pas_wdsp(iobase, SB_DSP_RDMA) == 0) { 472 (void)pas_wdsp(iobase, 0); 473 (void)pas_wdsp(iobase, 0); 474 } 475 } 476 #endif 477 478 /* 479 * Attach hardware to driver, attach hardware driver to audio 480 * pseudo-device driver . 481 */ 482 void 483 pasattach(parent, self, aux) 484 struct device *parent, *self; 485 void *aux; 486 { 487 struct pas_softc *sc = (struct pas_softc *)self; 488 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 489 int iobase = ia->ia_iobase; 490 491 if (!pasfind(parent, sc, ia, PASATTACH)) { 492 printf("%s: pasfind failed\n", sc->sc_sbdsp.sc_dev.dv_xname); 493 return; 494 } 495 496 sc->sc_sbdsp.sc_ic = ia->ia_ic; 497 sc->sc_sbdsp.sc_iobase = iobase; 498 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, 499 IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp); 500 501 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], 502 sc->rev); 503 504 sbdsp_attach(&sc->sc_sbdsp); 505 506 sprintf(pas_device.name, "pas,%s", pasnames[sc->model]); 507 sprintf(pas_device.version, "%d", sc->rev); 508 509 audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev); 510 } 511 512 int 513 pas_getdev(addr, retp) 514 void *addr; 515 struct audio_device *retp; 516 { 517 *retp = pas_device; 518 return 0; 519 } 520