1 /* $OpenBSD: pas.c,v 1.30 2021/03/07 06:17:04 jsg 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 57 #include <machine/cpu.h> 58 #include <machine/intr.h> 59 #include <machine/bus.h> 60 61 #include <sys/audioio.h> 62 #include <dev/audio_if.h> 63 #include <dev/midi_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 76 int 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 */ 95 struct pas_softc { 96 struct sbdsp_softc sc_sbdsp; /* use sc_dev, sc_id, sc_ih, 97 * sc_iobase, sc_irq, sc_drq 98 * from here */ 99 int model; /* unique to PAS */ 100 int rev; 101 102 }; 103 104 void pasconf(int, int, int, int); 105 106 107 /* 108 * Define our interface to the higher level audio driver. 109 */ 110 111 struct audio_hw_if pas_hw_if = { 112 sbdsp_open, 113 sbdsp_close, 114 sbdsp_set_params, 115 sbdsp_round_blocksize, 116 0, 117 0, 118 0, 119 0, 120 0, 121 sbdsp_haltdma, 122 sbdsp_haltdma, 123 sbdsp_speaker_ctl, 124 0, 125 sbdsp_mixer_set_port, 126 sbdsp_mixer_get_port, 127 sbdsp_mixer_query_devinfo, 128 sb_malloc, 129 sb_free, 130 sb_round, 131 sbdsp_get_props, 132 sbdsp_trigger_output, 133 sbdsp_trigger_input 134 }; 135 136 /* The Address Translation code is used to convert I/O register addresses to 137 be relative to the given base -register */ 138 139 static char *pasnames[] = { 140 "", 141 "Plus", 142 "CDPC", 143 "16", 144 "16Basic" 145 }; 146 147 /*XXX assume default I/O base address */ 148 #define pasread(p) inb(p) 149 #define paswrite(d, p) outb(p, d) 150 151 void 152 pasconf(int model, int sbbase, int sbirq, int sbdrq) 153 { 154 paswrite(0x00, INTERRUPT_MASK); 155 /* Local timer control register */ 156 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 157 /* Sample rate timer (16 bit) */ 158 paswrite(0x36, SAMPLE_RATE_TIMER); 159 paswrite(0, SAMPLE_RATE_TIMER); 160 /* Local timer control register */ 161 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 162 /* Sample count register (16 bit) */ 163 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 164 paswrite(0, SAMPLE_BUFFER_COUNTER); 165 166 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 167 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 168 PCM_CONTROL); 169 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 170 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 171 172 /*XXX*/ 173 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 174 175 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 176 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 177 178 #ifdef BROKEN_BUS_CLOCK 179 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 180 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 181 #else 182 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 183 SYSTEM_CONFIGURATION_1); 184 #endif 185 186 /*XXX*/ 187 paswrite(0, SYSTEM_CONFIGURATION_2); 188 paswrite(0, SYSTEM_CONFIGURATION_3); 189 190 /* Sets mute off and selects filter rate of 17.897 kHz */ 191 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 192 193 if (model == PAS_16 || model == PAS_16BASIC) 194 paswrite(8, PRESCALE_DIVIDER); 195 else 196 paswrite(0, PRESCALE_DIVIDER); 197 198 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 199 paswrite(5, PARALLEL_MIXER); 200 201 /* 202 * Setup SoundBlaster emulation. 203 */ 204 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 205 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 206 EMULATION_CONFIGURATION); 207 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 208 209 /* 210 * Set mid-range levels. 211 */ 212 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 213 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 214 215 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 216 paswrite(50, PARALLEL_MIXER); 217 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 218 paswrite(50, PARALLEL_MIXER); 219 220 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER); 221 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 222 223 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER); 224 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 225 } 226 227 int pasprobe(struct device *, void *, void *); 228 void pasattach(struct device *, struct device *, void *); 229 230 struct cfattach pas_ca = { 231 sizeof(struct pas_softc), pasprobe, pasattach 232 }; 233 234 struct cfdriver pas_cd = { 235 NULL, "pas", DV_DULL 236 }; 237 238 /* 239 * Probe / attach routines. 240 */ 241 242 /* 243 * Probe for the soundblaster hardware. 244 */ 245 int 246 pasprobe(struct device *parent, void *match, void *aux) 247 { 248 struct pas_softc *sc = match; 249 struct isa_attach_args *ia = aux; 250 int iobase; 251 u_char id, t; 252 253 /* ensure we can set this up as a sound blaster */ 254 if (!SB_BASE_VALID(ia->ia_iobase)) { 255 DPRINTF(("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase)); 256 return 0; 257 } 258 259 /* 260 * WARNING: Setting an option like W:1 or so that disables 261 * warm boot reset of the card will screw up this detect code 262 * something fierce. Adding code to handle this means possibly 263 * interfering with other cards on the bus if you have something 264 * on base port 0x388. SO be forewarned. 265 */ 266 /* Talk to first board */ 267 outb(MASTER_DECODE, 0xbc); 268 /* Set base address */ 269 270 #if 0 271 /* XXX Need to setup pseudo device */ 272 /* XXX What are good io addrs ? */ 273 if (iobase != PAS_DEFAULT_BASE) { 274 DPRINTF(("pas: configured iobase %d invalid\n", iobase)); 275 return 0; 276 } 277 #else 278 /* Start out talking to native PAS */ 279 iobase = PAS_DEFAULT_BASE; 280 #endif 281 282 outb(MASTER_DECODE, iobase >> 2); 283 /* One wait-state */ 284 paswrite(1, WAIT_STATE); 285 286 id = pasread(INTERRUPT_MASK); 287 if (id == 0xff || id == 0xfe) { 288 /* sanity */ 289 DPRINTF(("pas: bogus card id\n")); 290 return 0; 291 } 292 /* 293 * We probably have a PAS-series board, now check for a 294 * PAS2-series board by trying to change the board revision 295 * bits. PAS2-series hardware won't let you do this because 296 * the bits are read-only. 297 */ 298 t = id ^ 0xe0; 299 paswrite(t, INTERRUPT_MASK); 300 t = inb(INTERRUPT_MASK); 301 paswrite(id, INTERRUPT_MASK); 302 303 if (t != id) { 304 /* Not a PAS2 */ 305 DPRINTF(("pas: detected card but PAS2 test failed\n")); 306 return 0; 307 } 308 /*XXX*/ 309 t = pasread(OPERATION_MODE_1) & 0xf; 310 sc->model = O_M_1_to_card[t]; 311 if (sc->model != 0) { 312 sc->rev = pasread(BOARD_REV_ID); 313 } 314 else { 315 DPRINTF(("pas: bogus model id\n")); 316 return 0; 317 } 318 319 if (sc->model >= 0) { 320 if (ia->ia_irq == IRQUNK) { 321 DPRINTF(("pas: sb emulation requires known irq\n")); 322 return (0); 323 } 324 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1); 325 } else { 326 DPRINTF(("pas: could not probe pas\n")); 327 return (0); 328 } 329 330 /* Now a SoundBlaster, so set up proper bus-space hooks 331 * appropriately 332 */ 333 334 sc->sc_sbdsp.sc_iobase = ia->ia_iobase; 335 sc->sc_sbdsp.sc_iot = ia->ia_iot; 336 337 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 338 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0, 339 &sc->sc_sbdsp.sc_ioh)) { 340 DPRINTF(("pas: can't map i/o space 0x%x/%d in probe\n", 341 ia->ia_iobase, SBP_NPORT)); 342 return 0; 343 } 344 345 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 346 DPRINTF(("pas: couldn't reset card\n")); 347 goto unmap; 348 } 349 350 /* 351 * Cannot auto-discover DMA channel. 352 */ 353 if (!SB_DRQ_VALID(ia->ia_drq)) { 354 DPRINTF(("pas: configured dma chan %d invalid\n", ia->ia_drq)); 355 goto unmap; 356 } 357 if (!SB_IRQ_VALID(ia->ia_irq)) { 358 DPRINTF(("pas: configured irq chan %d invalid\n", ia->ia_irq)); 359 goto unmap; 360 } 361 362 sc->sc_sbdsp.sc_irq = ia->ia_irq; 363 sc->sc_sbdsp.sc_drq8 = ia->ia_drq; 364 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */ 365 sc->sc_sbdsp.sc_ic = ia->ia_ic; 366 367 if (sbdsp_probe(&sc->sc_sbdsp) == 0) { 368 DPRINTF(("pas: sbdsp probe failed\n")); 369 goto unmap; 370 } 371 372 ia->ia_iosize = SB_NPORT; 373 return 1; 374 375 unmap: 376 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT); 377 return 0; 378 } 379 380 /* 381 * Attach hardware to driver, attach hardware driver to audio 382 * pseudo-device driver . 383 */ 384 void 385 pasattach(struct device *parent, struct device *self, void *aux) 386 { 387 struct pas_softc *sc = (struct pas_softc *)self; 388 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 389 int iobase = ia->ia_iobase; 390 391 sc->sc_sbdsp.sc_isa = parent; 392 sc->sc_sbdsp.sc_iobase = iobase; 393 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, 394 IST_EDGE, IPL_AUDIO | IPL_MPSAFE, 395 sbdsp_intr, &sc->sc_sbdsp, sc->sc_sbdsp.sc_dev.dv_xname); 396 397 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], sc->rev); 398 399 sbdsp_attach(&sc->sc_sbdsp); 400 401 audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev); 402 } 403