1 /* $OpenBSD: pas.c,v 1.25 2008/04/21 00:32:42 jakemsr Exp $ */ 2 /* $NetBSD: pas.c,v 1.37 1998/01/12 09:43:43 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1991-1993 Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the Computer Systems 19 * Engineering Group at Lawrence Berkeley Laboratory. 20 * 4. Neither the name of the University nor of the Laboratory may be used 21 * to endorse or promote products derived from this software without 22 * specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 */ 37 /* 38 * jfw 7/13/97 - The soundblaster code requires the generic bus-space 39 * structures to be set up properly. Rather than go to the effort of making 40 * code for a dead line fully generic, properly set up the SB structures and 41 * leave the rest x86/ISA/default-configuration specific. If you have a 42 * REAL computer, go buy a REAL sound card. 43 */ 44 /* 45 * Todo: 46 * - look at other PAS drivers (for PAS native support) 47 * - use common sb.c once emulation is setup 48 */ 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/errno.h> 53 #include <sys/ioctl.h> 54 #include <sys/syslog.h> 55 #include <sys/device.h> 56 #include <sys/proc.h> 57 58 #include <machine/cpu.h> 59 #include <machine/intr.h> 60 #include <machine/bus.h> 61 62 #include <sys/audioio.h> 63 #include <dev/audio_if.h> 64 #include <dev/midi_if.h> 65 66 #include <dev/isa/isavar.h> 67 #include <dev/isa/isadmavar.h> 68 69 #include <dev/isa/sbdspvar.h> 70 #include <dev/isa/sbreg.h> 71 72 #define DEFINE_TRANSLATIONS 73 #include <dev/isa/pasreg.h> 74 75 #ifdef AUDIO_DEBUG 76 #define DPRINTF(x) if (pasdebug) printf x 77 int pasdebug = 0; 78 #else 79 #define DPRINTF(x) 80 #endif 81 82 /* 83 * Software state, per SoundBlaster card. 84 * The soundblaster has multiple functionality, which we must demultiplex. 85 * One approach is to have one major device number for the soundblaster card, 86 * and use different minor numbers to indicate which hardware function 87 * we want. This would make for one large driver. Instead our approach 88 * is to partition the design into a set of drivers that share an underlying 89 * piece of hardware. Most things are hard to share, for example, the audio 90 * and midi ports. For audio, we might want to mix two processes' signals, 91 * and for midi we might want to merge streams (this is hard due to 92 * running status). Moreover, we should be able to re-use the high-level 93 * modules with other kinds of hardware. In this module, we only handle the 94 * most basic communications with the sb card. 95 */ 96 struct pas_softc { 97 struct sbdsp_softc sc_sbdsp; /* use sc_dev, sc_id, sc_ih, 98 * sc_iobase, sc_irq, sc_drq 99 * from here */ 100 int model; /* unique to PAS */ 101 int rev; 102 103 }; 104 105 int pas_getdev(void *, struct audio_device *); 106 void pasconf(int, int, int, int); 107 108 109 /* 110 * Define our interface to the higher level audio driver. 111 */ 112 113 struct audio_hw_if pas_hw_if = { 114 sbdsp_open, 115 sbdsp_close, 116 0, 117 sbdsp_query_encoding, 118 sbdsp_set_params, 119 sbdsp_round_blocksize, 120 0, 121 0, 122 0, 123 0, 124 0, 125 sbdsp_haltdma, 126 sbdsp_haltdma, 127 sbdsp_speaker_ctl, 128 pas_getdev, 129 0, 130 sbdsp_mixer_set_port, 131 sbdsp_mixer_get_port, 132 sbdsp_mixer_query_devinfo, 133 sb_malloc, 134 sb_free, 135 sb_round, 136 sb_mappage, 137 sbdsp_get_props, 138 sbdsp_trigger_output, 139 sbdsp_trigger_input, 140 NULL 141 }; 142 143 /* The Address Translation code is used to convert I/O register addresses to 144 be relative to the given base -register */ 145 146 static char *pasnames[] = { 147 "", 148 "Plus", 149 "CDPC", 150 "16", 151 "16Basic" 152 }; 153 154 static struct audio_device pas_device = { 155 "PAS,??", 156 "", 157 "pas" 158 }; 159 160 /*XXX assume default I/O base address */ 161 #define pasread(p) inb(p) 162 #define paswrite(d, p) outb(p, d) 163 164 void 165 pasconf(model, sbbase, sbirq, sbdrq) 166 int model; 167 int sbbase; 168 int sbirq; 169 int sbdrq; 170 { 171 paswrite(0x00, INTERRUPT_MASK); 172 /* Local timer control register */ 173 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 174 /* Sample rate timer (16 bit) */ 175 paswrite(0x36, SAMPLE_RATE_TIMER); 176 paswrite(0, SAMPLE_RATE_TIMER); 177 /* Local timer control register */ 178 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 179 /* Sample count register (16 bit) */ 180 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 181 paswrite(0, SAMPLE_BUFFER_COUNTER); 182 183 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 184 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 185 PCM_CONTROL); 186 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 187 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 188 189 /*XXX*/ 190 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 191 192 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 193 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 194 195 #ifdef BROKEN_BUS_CLOCK 196 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 197 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 198 #else 199 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 200 SYSTEM_CONFIGURATION_1); 201 #endif 202 203 /*XXX*/ 204 paswrite(0, SYSTEM_CONFIGURATION_2); 205 paswrite(0, SYSTEM_CONFIGURATION_3); 206 207 /* Sets mute off and selects filter rate of 17.897 kHz */ 208 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 209 210 if (model == PAS_16 || model == PAS_16BASIC) 211 paswrite(8, PRESCALE_DIVIDER); 212 else 213 paswrite(0, PRESCALE_DIVIDER); 214 215 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 216 paswrite(5, PARALLEL_MIXER); 217 218 /* 219 * Setup SoundBlaster emulation. 220 */ 221 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 222 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 223 EMULATION_CONFIGURATION); 224 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 225 226 /* 227 * Set mid-range levels. 228 */ 229 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 230 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 231 232 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 233 paswrite(50, PARALLEL_MIXER); 234 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 235 paswrite(50, PARALLEL_MIXER); 236 237 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER); 238 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 239 240 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER); 241 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 242 } 243 244 int pasprobe(struct device *, void *, void *); 245 void pasattach(struct device *, struct device *, void *); 246 247 struct cfattach pas_ca = { 248 sizeof(struct pas_softc), pasprobe, pasattach 249 }; 250 251 struct cfdriver pas_cd = { 252 NULL, "pas", DV_DULL 253 }; 254 255 /* 256 * Probe / attach routines. 257 */ 258 259 /* 260 * Probe for the soundblaster hardware. 261 */ 262 int 263 pasprobe(parent, match, aux) 264 struct device *parent; 265 void *match, *aux; 266 { 267 struct pas_softc *sc = match; 268 struct isa_attach_args *ia = aux; 269 int iobase; 270 u_char id, t; 271 272 /* ensure we can set this up as a sound blaster */ 273 if (!SB_BASE_VALID(ia->ia_iobase)) { 274 DPRINTF(("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase)); 275 return 0; 276 } 277 278 /* 279 * WARNING: Setting an option like W:1 or so that disables 280 * warm boot reset of the card will screw up this detect code 281 * something fierce. Adding code to handle this means possibly 282 * interfering with other cards on the bus if you have something 283 * on base port 0x388. SO be forewarned. 284 */ 285 /* Talk to first board */ 286 outb(MASTER_DECODE, 0xbc); 287 /* Set base address */ 288 289 #if 0 290 /* XXX Need to setup pseudo device */ 291 /* XXX What are good io addrs ? */ 292 if (iobase != PAS_DEFAULT_BASE) { 293 DPRINTF(("pas: configured iobase %d invalid\n", iobase)); 294 return 0; 295 } 296 #else 297 /* Start out talking to native PAS */ 298 iobase = PAS_DEFAULT_BASE; 299 #endif 300 301 outb(MASTER_DECODE, iobase >> 2); 302 /* One wait-state */ 303 paswrite(1, WAIT_STATE); 304 305 id = pasread(INTERRUPT_MASK); 306 if (id == 0xff || id == 0xfe) { 307 /* sanity */ 308 DPRINTF(("pas: bogus card id\n")); 309 return 0; 310 } 311 /* 312 * We probably have a PAS-series board, now check for a 313 * PAS2-series board by trying to change the board revision 314 * bits. PAS2-series hardware won't let you do this because 315 * the bits are read-only. 316 */ 317 t = id ^ 0xe0; 318 paswrite(t, INTERRUPT_MASK); 319 t = inb(INTERRUPT_MASK); 320 paswrite(id, INTERRUPT_MASK); 321 322 if (t != id) { 323 /* Not a PAS2 */ 324 DPRINTF(("pas: detected card but PAS2 test failed\n")); 325 return 0; 326 } 327 /*XXX*/ 328 t = pasread(OPERATION_MODE_1) & 0xf; 329 sc->model = O_M_1_to_card[t]; 330 if (sc->model != 0) { 331 sc->rev = pasread(BOARD_REV_ID); 332 } 333 else { 334 DPRINTF(("pas: bogus model id\n")); 335 return 0; 336 } 337 338 if (sc->model >= 0) { 339 if (ia->ia_irq == IRQUNK) { 340 DPRINTF(("pas: sb emulation requires known irq\n")); 341 return (0); 342 } 343 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1); 344 } else { 345 DPRINTF(("pas: could not probe pas\n")); 346 return (0); 347 } 348 349 /* Now a SoundBlaster, so set up proper bus-space hooks 350 * appropriately 351 */ 352 353 sc->sc_sbdsp.sc_iobase = ia->ia_iobase; 354 sc->sc_sbdsp.sc_iot = ia->ia_iot; 355 356 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 357 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0, 358 &sc->sc_sbdsp.sc_ioh)) { 359 DPRINTF(("pas: can't map i/o space 0x%x/%d in probe\n", 360 ia->ia_iobase, SBP_NPORT)); 361 return 0; 362 } 363 364 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 365 DPRINTF(("pas: couldn't reset card\n")); 366 goto unmap; 367 } 368 369 /* 370 * Cannot auto-discover DMA channel. 371 */ 372 if (!SB_DRQ_VALID(ia->ia_drq)) { 373 DPRINTF(("pas: configured dma chan %d invalid\n", ia->ia_drq)); 374 goto unmap; 375 } 376 if (!SB_IRQ_VALID(ia->ia_irq)) { 377 DPRINTF(("pas: configured irq chan %d invalid\n", ia->ia_irq)); 378 goto unmap; 379 } 380 381 sc->sc_sbdsp.sc_irq = ia->ia_irq; 382 sc->sc_sbdsp.sc_drq8 = ia->ia_drq; 383 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */ 384 sc->sc_sbdsp.sc_ic = ia->ia_ic; 385 386 if (sbdsp_probe(&sc->sc_sbdsp) == 0) { 387 DPRINTF(("pas: sbdsp probe failed\n")); 388 goto unmap; 389 } 390 391 ia->ia_iosize = SB_NPORT; 392 return 1; 393 394 unmap: 395 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT); 396 return 0; 397 } 398 399 /* 400 * Attach hardware to driver, attach hardware driver to audio 401 * pseudo-device driver . 402 */ 403 void 404 pasattach(parent, self, aux) 405 struct device *parent, *self; 406 void *aux; 407 { 408 struct pas_softc *sc = (struct pas_softc *)self; 409 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 410 int iobase = ia->ia_iobase; 411 412 sc->sc_sbdsp.sc_isa = parent; 413 sc->sc_sbdsp.sc_iobase = iobase; 414 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 415 IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp, sc->sc_sbdsp.sc_dev.dv_xname); 416 417 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], sc->rev); 418 419 sbdsp_attach(&sc->sc_sbdsp); 420 421 snprintf(pas_device.name, sizeof pas_device.name, "pas,%s", 422 pasnames[sc->model]); 423 snprintf(pas_device.version, sizeof pas_device.version, "%d", 424 sc->rev); 425 426 audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev); 427 } 428 429 int 430 pas_getdev(addr, retp) 431 void *addr; 432 struct audio_device *retp; 433 { 434 *retp = pas_device; 435 return 0; 436 } 437