1 /* $OpenBSD: pas.c,v 1.37 2022/11/02 10:41:34 kn 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 const struct audio_hw_if pas_hw_if = { 112 .open = sbdsp_open, 113 .close = sbdsp_close, 114 .set_params = sbdsp_set_params, 115 .round_blocksize = sbdsp_round_blocksize, 116 .halt_output = sbdsp_haltdma, 117 .halt_input = sbdsp_haltdma, 118 .set_port = sbdsp_mixer_set_port, 119 .get_port = sbdsp_mixer_get_port, 120 .query_devinfo = sbdsp_mixer_query_devinfo, 121 .allocm = sb_malloc, 122 .freem = sb_free, 123 .round_buffersize = sb_round, 124 .trigger_output = sbdsp_trigger_output, 125 .trigger_input = sbdsp_trigger_input, 126 }; 127 128 /* The Address Translation code is used to convert I/O register addresses to 129 be relative to the given base -register */ 130 131 static const char *pasnames[] = { 132 "", 133 "Plus", 134 "CDPC", 135 "16", 136 "16Basic" 137 }; 138 139 /*XXX assume default I/O base address */ 140 #define pasread(p) inb(p) 141 #define paswrite(d, p) outb(p, d) 142 143 void 144 pasconf(int model, int sbbase, int sbirq, int sbdrq) 145 { 146 paswrite(0x00, INTERRUPT_MASK); 147 /* Local timer control register */ 148 paswrite(0x36, SAMPLE_COUNTER_CONTROL); 149 /* Sample rate timer (16 bit) */ 150 paswrite(0x36, SAMPLE_RATE_TIMER); 151 paswrite(0, SAMPLE_RATE_TIMER); 152 /* Local timer control register */ 153 paswrite(0x74, SAMPLE_COUNTER_CONTROL); 154 /* Sample count register (16 bit) */ 155 paswrite(0x74, SAMPLE_BUFFER_COUNTER); 156 paswrite(0, SAMPLE_BUFFER_COUNTER); 157 158 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE | 159 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R, 160 PCM_CONTROL); 161 paswrite(S_M_PCM_RESET | S_M_FM_RESET | 162 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER); 163 164 /*XXX*/ 165 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1); 166 167 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2); 168 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3); 169 170 #ifdef BROKEN_BUS_CLOCK 171 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND | 172 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1); 173 #else 174 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND, 175 SYSTEM_CONFIGURATION_1); 176 #endif 177 178 /*XXX*/ 179 paswrite(0, SYSTEM_CONFIGURATION_2); 180 paswrite(0, SYSTEM_CONFIGURATION_3); 181 182 /* Sets mute off and selects filter rate of 17.897 kHz */ 183 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY); 184 185 if (model == PAS_16 || model == PAS_16BASIC) 186 paswrite(8, PRESCALE_DIVIDER); 187 else 188 paswrite(0, PRESCALE_DIVIDER); 189 190 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER); 191 paswrite(5, PARALLEL_MIXER); 192 193 /* 194 * Setup SoundBlaster emulation. 195 */ 196 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS); 197 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq], 198 EMULATION_CONFIGURATION); 199 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE); 200 201 /* 202 * Set mid-range levels. 203 */ 204 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); 205 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER); 206 207 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER); 208 paswrite(50, PARALLEL_MIXER); 209 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER); 210 paswrite(50, PARALLEL_MIXER); 211 212 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER); 213 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER); 214 215 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER); 216 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER); 217 } 218 219 int pasprobe(struct device *, void *, void *); 220 void pasattach(struct device *, struct device *, void *); 221 222 const struct cfattach pas_ca = { 223 sizeof(struct pas_softc), pasprobe, pasattach 224 }; 225 226 struct cfdriver pas_cd = { 227 NULL, "pas", DV_DULL 228 }; 229 230 /* 231 * Probe / attach routines. 232 */ 233 234 /* 235 * Probe for the soundblaster hardware. 236 */ 237 int 238 pasprobe(struct device *parent, void *match, void *aux) 239 { 240 struct pas_softc *sc = match; 241 struct isa_attach_args *ia = aux; 242 int iobase; 243 u_char id, t; 244 245 /* ensure we can set this up as a sound blaster */ 246 if (!SB_BASE_VALID(ia->ia_iobase)) { 247 DPRINTF(("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase)); 248 return 0; 249 } 250 251 /* 252 * WARNING: Setting an option like W:1 or so that disables 253 * warm boot reset of the card will screw up this detect code 254 * something fierce. Adding code to handle this means possibly 255 * interfering with other cards on the bus if you have something 256 * on base port 0x388. SO be forewarned. 257 */ 258 /* Talk to first board */ 259 outb(MASTER_DECODE, 0xbc); 260 /* Set base address */ 261 262 #if 0 263 /* XXX Need to setup pseudo device */ 264 /* XXX What are good io addrs ? */ 265 if (iobase != PAS_DEFAULT_BASE) { 266 DPRINTF(("pas: configured iobase %d invalid\n", iobase)); 267 return 0; 268 } 269 #else 270 /* Start out talking to native PAS */ 271 iobase = PAS_DEFAULT_BASE; 272 #endif 273 274 outb(MASTER_DECODE, iobase >> 2); 275 /* One wait-state */ 276 paswrite(1, WAIT_STATE); 277 278 id = pasread(INTERRUPT_MASK); 279 if (id == 0xff || id == 0xfe) { 280 /* sanity */ 281 DPRINTF(("pas: bogus card id\n")); 282 return 0; 283 } 284 /* 285 * We probably have a PAS-series board, now check for a 286 * PAS2-series board by trying to change the board revision 287 * bits. PAS2-series hardware won't let you do this because 288 * the bits are read-only. 289 */ 290 t = id ^ 0xe0; 291 paswrite(t, INTERRUPT_MASK); 292 t = inb(INTERRUPT_MASK); 293 paswrite(id, INTERRUPT_MASK); 294 295 if (t != id) { 296 /* Not a PAS2 */ 297 DPRINTF(("pas: detected card but PAS2 test failed\n")); 298 return 0; 299 } 300 /*XXX*/ 301 t = pasread(OPERATION_MODE_1) & 0xf; 302 sc->model = O_M_1_to_card[t]; 303 if (sc->model != 0) { 304 sc->rev = pasread(BOARD_REV_ID); 305 } 306 else { 307 DPRINTF(("pas: bogus model id\n")); 308 return 0; 309 } 310 311 if (sc->model >= 0) { 312 if (ia->ia_irq == IRQUNK) { 313 DPRINTF(("pas: sb emulation requires known irq\n")); 314 return (0); 315 } 316 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1); 317 } else { 318 DPRINTF(("pas: could not probe pas\n")); 319 return (0); 320 } 321 322 /* Now a SoundBlaster, so set up proper bus-space hooks 323 * appropriately 324 */ 325 326 sc->sc_sbdsp.sc_iobase = ia->ia_iobase; 327 sc->sc_sbdsp.sc_iot = ia->ia_iot; 328 329 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 330 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0, 331 &sc->sc_sbdsp.sc_ioh)) { 332 DPRINTF(("pas: can't map i/o space 0x%x/%d in probe\n", 333 ia->ia_iobase, SBP_NPORT)); 334 return 0; 335 } 336 337 if (sbdsp_reset(&sc->sc_sbdsp) < 0) { 338 DPRINTF(("pas: couldn't reset card\n")); 339 goto unmap; 340 } 341 342 /* 343 * Cannot auto-discover DMA channel. 344 */ 345 if (!SB_DRQ_VALID(ia->ia_drq)) { 346 DPRINTF(("pas: configured dma chan %d invalid\n", ia->ia_drq)); 347 goto unmap; 348 } 349 if (!SB_IRQ_VALID(ia->ia_irq)) { 350 DPRINTF(("pas: configured irq chan %d invalid\n", ia->ia_irq)); 351 goto unmap; 352 } 353 354 sc->sc_sbdsp.sc_irq = ia->ia_irq; 355 sc->sc_sbdsp.sc_drq8 = ia->ia_drq; 356 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */ 357 sc->sc_sbdsp.sc_ic = ia->ia_ic; 358 359 if (sbdsp_probe(&sc->sc_sbdsp) == 0) { 360 DPRINTF(("pas: sbdsp probe failed\n")); 361 goto unmap; 362 } 363 364 ia->ia_iosize = SB_NPORT; 365 return 1; 366 367 unmap: 368 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT); 369 return 0; 370 } 371 372 /* 373 * Attach hardware to driver, attach hardware driver to audio 374 * pseudo-device driver . 375 */ 376 void 377 pasattach(struct device *parent, struct device *self, void *aux) 378 { 379 struct pas_softc *sc = (struct pas_softc *)self; 380 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 381 int iobase = ia->ia_iobase; 382 383 sc->sc_sbdsp.sc_isa = parent; 384 sc->sc_sbdsp.sc_iobase = iobase; 385 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, 386 IST_EDGE, IPL_AUDIO | IPL_MPSAFE, 387 sbdsp_intr, &sc->sc_sbdsp, sc->sc_sbdsp.sc_dev.dv_xname); 388 389 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], sc->rev); 390 391 sbdsp_attach(&sc->sc_sbdsp); 392 393 audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, NULL, &sc->sc_sbdsp.sc_dev); 394 } 395