1 /* $NetBSD: pas.c,v 1.27 1997/06/06 23:43:58 thorpej 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 * Todo: 38 * - look at other PAS drivers (for PAS native suport) 39 * - use common sb.c once emulation is setup 40 */ 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/errno.h> 45 #include <sys/ioctl.h> 46 #include <sys/syslog.h> 47 #include <sys/device.h> 48 #include <sys/proc.h> 49 50 #include <machine/cpu.h> 51 #include <machine/intr.h> 52 #include <machine/bus.h> 53 #include <machine/pio.h> 54 55 #include <sys/audioio.h> 56 #include <dev/audio_if.h> 57 58 #include <dev/isa/isavar.h> 59 #include <dev/isa/isadmavar.h> 60 61 #include <dev/isa/sbdspvar.h> 62 #include <dev/isa/sbreg.h> 63 64 #define DEFINE_TRANSLATIONS 65 #include <dev/isa/pasreg.h> 66 67 #ifdef AUDIO_DEBUG 68 #define DPRINTF(x) if (pasdebug) printf x 69 int pasdebug = 0; 70 #else 71 #define DPRINTF(x) 72 #endif 73 74 /* 75 * Software state, per SoundBlaster card. 76 * The soundblaster has multiple functionality, which we must demultiplex. 77 * One approach is to have one major device number for the soundblaster card, 78 * and use different minor numbers to indicate which hardware function 79 * we want. This would make for one large driver. Instead our approach 80 * is to partition the design into a set of drivers that share an underlying 81 * piece of hardware. Most things are hard to share, for example, the audio 82 * and midi ports. For audio, we might want to mix two processes' signals, 83 * and for midi we might want to merge streams (this is hard due to 84 * running status). Moreover, we should be able to re-use the high-level 85 * modules with other kinds of hardware. In this module, we only handle the 86 * most basic communications with the sb card. 87 */ 88 struct pas_softc { 89 struct sbdsp_softc sc_sbdsp; /* base device, &c. */ 90 91 int model; 92 int rev; 93 }; 94 95 int pasopen __P((dev_t, int)); 96 int pas_getdev __P((void *, struct audio_device *)); 97 void pasconf __P((int, int, int, int)); 98 99 100 /* 101 * Define our interface to the higher level audio driver. 102 */ 103 104 struct audio_hw_if pas_hw_if = { 105 pasopen, 106 sbdsp_close, 107 NULL, 108 sbdsp_query_encoding, 109 sbdsp_set_params, 110 sbdsp_round_blocksize, 111 sbdsp_set_out_port, 112 sbdsp_get_out_port, 113 sbdsp_set_in_port, 114 sbdsp_get_in_port, 115 sbdsp_commit_settings, 116 sbdsp_dma_output, 117 sbdsp_dma_input, 118 sbdsp_haltdma, 119 sbdsp_haltdma, 120 sbdsp_contdma, 121 sbdsp_contdma, 122 sbdsp_speaker_ctl, 123 pas_getdev, 124 sbdsp_setfd, 125 sbdsp_mixer_set_port, 126 sbdsp_mixer_get_port, 127 sbdsp_mixer_query_devinfo, 128 0, /* not full-duplex */ 129 0 130 }; 131 132 /* The Address Translation code is used to convert I/O register addresses to 133 be relative to the given base -register */ 134 135 static char *pasnames[] = { 136 "", 137 "Plus", 138 "CDPC", 139 "16", 140 "16Basic" 141 }; 142 143 static struct audio_device pas_device = { 144 "PAS,??", 145 "", 146 "pas" 147 }; 148 149 /*XXX assume default I/O base address */ 150 #define pasread(p) inb(p) 151 #define paswrite(d, p) outb(p, d) 152 153 void 154 pasconf(model, sbbase, sbirq, sbdrq) 155 int model; 156 int sbbase; 157 int sbirq; 158 int sbdrq; 159 { 160 paswrite(0x00, INTERRUPT_MASK); 161 /* Local timer control register */ 162 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 163 /* Sample rate timer (16 bit) */ 164 paswrite(0x36, SAMPLE_RATE_TIMER); 165 paswrite(0, SAMPLE_RATE_TIMER); 166 /* Local timer control register */ 167 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 168 /* Sample count register (16 bit) */ 169 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 170 paswrite(0, SAMPLE_BUFFER_COUNTER); 171 172 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 173 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 174 PCM_CONTROL); 175 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 176 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 177 178 /*XXX*/ 179 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 180 181 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 182 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 183 184 #ifdef BROKEN_BUS_CLOCK 185 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 186 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 187 #else 188 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 189 SYSTEM_CONFIGURATION_1); 190 #endif 191 192 /*XXX*/ 193 paswrite(0, SYSTEM_CONFIGURATION_2); 194 paswrite(0, SYSTEM_CONFIGURATION_3); 195 196 /* Sets mute off and selects filter rate of 17.897 kHz */ 197 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 198 199 if (model == PAS_16 || model == PAS_16BASIC) 200 paswrite(8, PRESCALE_DIVIDER); 201 else 202 paswrite(0, PRESCALE_DIVIDER); 203 204 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 205 paswrite(5, PARALLEL_MIXER); 206 207 /* 208 * Setup SoundBlaster emulation. 209 */ 210 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 211 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 212 EMULATION_CONFIGURATION); 213 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 214 215 /* 216 * Set mid-range levels. 217 */ 218 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 219 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 220 221 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 222 paswrite(50, PARALLEL_MIXER); 223 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 224 paswrite(50, PARALLEL_MIXER); 225 226 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER); 227 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 228 229 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER); 230 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 231 } 232 233 int pasprobe __P((struct device *, void *, void *)); 234 void pasattach __P((struct device *, struct device *, void *)); 235 236 struct cfattach pas_ca = { 237 sizeof(struct pas_softc), pasprobe, pasattach 238 }; 239 240 struct cfdriver pas_cd = { 241 NULL, "pas", DV_DULL 242 }; 243 244 /* 245 * Probe / attach routines. 246 */ 247 248 /* 249 * Probe for the soundblaster hardware. 250 */ 251 int 252 pasprobe(parent, match, aux) 253 struct device *parent; 254 void *match, *aux; 255 { 256 register struct pas_softc *sc = match; 257 register struct isa_attach_args *ia = aux; 258 register int iobase; 259 u_char id, t; 260 261 /* 262 * WARNING: Setting an option like W:1 or so that disables 263 * warm boot reset of the card will screw up this detect code 264 * something fierce. Adding code to handle this means possibly 265 * interfering with other cards on the bus if you have something 266 * on base port 0x388. SO be forewarned. 267 */ 268 /* Talk to first board */ 269 outb(MASTER_DECODE, 0xbc); 270 /* Set base address */ 271 272 #if 0 273 /* XXX Need to setup pseudo device */ 274 /* XXX What are good io addrs ? */ 275 if (iobase != PAS_DEFAULT_BASE) { 276 printf("pas: configured iobase %d invalid\n", iobase); 277 return 0; 278 } 279 #else 280 /* Start out talking to native PAS */ 281 iobase = PAS_DEFAULT_BASE; 282 #endif 283 284 outb(MASTER_DECODE, iobase >> 2); 285 /* One wait-state */ 286 paswrite(1, WAIT_STATE); 287 288 id = pasread(INTERRUPT_MASK); 289 if (id == 0xff || id == 0xfe) { 290 /* sanity */ 291 DPRINTF(("pas: bogus card id\n")); 292 return 0; 293 } 294 /* 295 * We probably have a PAS-series board, now check for a 296 * PAS2-series board by trying to change the board revision 297 * bits. PAS2-series hardware won't let you do this because 298 * the bits are read-only. 299 */ 300 t = id ^ 0xe0; 301 paswrite(t, INTERRUPT_MASK); 302 t = inb(INTERRUPT_MASK); 303 paswrite(id, INTERRUPT_MASK); 304 305 if (t != id) { 306 /* Not a PAS2 */ 307 printf("pas: detected card but PAS2 test failed\n"); 308 return 0; 309 } 310 /*XXX*/ 311 t = pasread(OPERATION_MODE_1) & 0xf; 312 sc->model = O_M_1_to_card[t]; 313 if (sc->model != 0) { 314 sc->rev = pasread(BOARD_REV_ID); 315 } 316 else { 317 DPRINTF(("pas: bogus model id\n")); 318 return 0; 319 } 320 321 if (sc->model >= 0) { 322 if (ia->ia_irq == IRQUNK) { 323 printf("pas: sb emulation requires known irq\n"); 324 return (0); 325 } 326 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1); 327 } else { 328 DPRINTF(("pas: could not probe pas\n")); 329 return (0); 330 } 331 332 /* Now a SoundBlaster */ 333 sc->sc_sbdsp.sc_iobase = ia->ia_iobase; 334 sc->sc_sbdsp.sc_iot = ia->ia_iot; 335 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 336 DPRINTF(("pas: couldn't reset card\n")); 337 return 0; 338 } 339 340 /* 341 * Cannot auto-discover DMA channel. 342 */ 343 if (!SB_DRQ_VALID(ia->ia_drq)) { 344 printf("pas: configured dma chan %d invalid\n", ia->ia_drq); 345 return 0; 346 } 347 #ifdef NEWCONFIG 348 /* 349 * If the IRQ wasn't compiled in, auto-detect it. 350 */ 351 if (ia->ia_irq == IRQUNK) { 352 ia->ia_irq = isa_discoverintr(pasforceintr, aux); 353 sbdsp_reset(&sc->sc_sbdsp); 354 if (!SB_IRQ_VALID(ia->ia_irq)) { 355 printf("pas: couldn't auto-detect interrupt"); 356 return 0; 357 } 358 } else 359 #endif 360 if (!SB_IRQ_VALID(ia->ia_irq)) { 361 printf("pas: configured irq chan %d invalid\n", ia->ia_irq); 362 return 0; 363 } 364 365 sc->sc_sbdsp.sc_irq = ia->ia_irq; 366 sc->sc_sbdsp.sc_drq8 = ia->ia_drq; 367 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */ 368 369 if (sbdsp_probe(&sc->sc_sbdsp) == 0) { 370 DPRINTF(("pas: sbdsp probe failed\n")); 371 return 0; 372 } 373 374 ia->ia_iosize = SB_NPORT; 375 return 1; 376 } 377 378 #ifdef NEWCONFIG 379 void 380 pasforceintr(aux) 381 void *aux; 382 { 383 static char dmabuf; 384 struct isa_attach_args *ia = aux; 385 int iobase = ia->ia_iobase; 386 387 /* 388 * Set up a DMA read of one byte. 389 * XXX Note that at this point we haven't called 390 * at_setup_dmachan(). This is okay because it just 391 * allocates a buffer in case it needs to make a copy, 392 * and it won't need to make a copy for a 1 byte buffer. 393 * (I think that calling at_setup_dmachan() should be optional; 394 * if you don't call it, it will be called the first time 395 * it is needed (and you pay the latency). Also, you might 396 * never need the buffer anyway.) 397 */ 398 at_dma(DMAMODE_READ, &dmabuf, 1, ia->ia_drq); 399 if (pas_wdsp(iobase, SB_DSP_RDMA) == 0) { 400 (void)pas_wdsp(iobase, 0); 401 (void)pas_wdsp(iobase, 0); 402 } 403 } 404 #endif 405 406 /* 407 * Attach hardware to driver, attach hardware driver to audio 408 * pseudo-device driver . 409 */ 410 void 411 pasattach(parent, self, aux) 412 struct device *parent, *self; 413 void *aux; 414 { 415 register struct pas_softc *sc = (struct pas_softc *)self; 416 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 417 register int iobase = ia->ia_iobase; 418 int err; 419 420 sc->sc_sbdsp.sc_iobase = iobase; 421 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, 422 IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp); 423 424 sc->sc_sbdsp.sc_isa = parent; 425 426 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], 427 sc->rev); 428 429 sbdsp_attach(&sc->sc_sbdsp); 430 431 sprintf(pas_device.name, "pas,%s", pasnames[sc->model]); 432 sprintf(pas_device.version, "%d", sc->rev); 433 434 if ((err = audio_hardware_attach(&pas_hw_if, &sc->sc_sbdsp)) != 0) 435 printf("pas: could not attach to audio pseudo-device driver (%d)\n", err); 436 } 437 438 int 439 pasopen(dev, flags) 440 dev_t dev; 441 int flags; 442 { 443 struct pas_softc *sc; 444 int unit = AUDIOUNIT(dev); 445 446 if (unit >= pas_cd.cd_ndevs) 447 return ENODEV; 448 449 sc = pas_cd.cd_devs[unit]; 450 if (!sc) 451 return ENXIO; 452 453 return sbdsp_open(&sc->sc_sbdsp, dev, flags); 454 } 455 456 int 457 pas_getdev(addr, retp) 458 void *addr; 459 struct audio_device *retp; 460 { 461 *retp = pas_device; 462 return 0; 463 } 464