Annotation of sys/dev/isa/pas.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pas.c,v 1.24 2003/04/27 11:22:53 ho 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: };
! 141:
! 142: /* The Address Translation code is used to convert I/O register addresses to
! 143: be relative to the given base -register */
! 144:
! 145: static char *pasnames[] = {
! 146: "",
! 147: "Plus",
! 148: "CDPC",
! 149: "16",
! 150: "16Basic"
! 151: };
! 152:
! 153: static struct audio_device pas_device = {
! 154: "PAS,??",
! 155: "",
! 156: "pas"
! 157: };
! 158:
! 159: /*XXX assume default I/O base address */
! 160: #define pasread(p) inb(p)
! 161: #define paswrite(d, p) outb(p, d)
! 162:
! 163: void
! 164: pasconf(model, sbbase, sbirq, sbdrq)
! 165: int model;
! 166: int sbbase;
! 167: int sbirq;
! 168: int sbdrq;
! 169: {
! 170: paswrite(0x00, INTERRUPT_MASK);
! 171: /* Local timer control register */
! 172: paswrite(0x36, SAMPLE_COUNTER_CONTROL);
! 173: /* Sample rate timer (16 bit) */
! 174: paswrite(0x36, SAMPLE_RATE_TIMER);
! 175: paswrite(0, SAMPLE_RATE_TIMER);
! 176: /* Local timer control register */
! 177: paswrite(0x74, SAMPLE_COUNTER_CONTROL);
! 178: /* Sample count register (16 bit) */
! 179: paswrite(0x74, SAMPLE_BUFFER_COUNTER);
! 180: paswrite(0, SAMPLE_BUFFER_COUNTER);
! 181:
! 182: paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE |
! 183: P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R,
! 184: PCM_CONTROL);
! 185: paswrite(S_M_PCM_RESET | S_M_FM_RESET |
! 186: S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER);
! 187:
! 188: /*XXX*/
! 189: paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1);
! 190:
! 191: paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2);
! 192: paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3);
! 193:
! 194: #ifdef BROKEN_BUS_CLOCK
! 195: paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND |
! 196: S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1);
! 197: #else
! 198: paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND,
! 199: SYSTEM_CONFIGURATION_1);
! 200: #endif
! 201:
! 202: /*XXX*/
! 203: paswrite(0, SYSTEM_CONFIGURATION_2);
! 204: paswrite(0, SYSTEM_CONFIGURATION_3);
! 205:
! 206: /* Sets mute off and selects filter rate of 17.897 kHz */
! 207: paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY);
! 208:
! 209: if (model == PAS_16 || model == PAS_16BASIC)
! 210: paswrite(8, PRESCALE_DIVIDER);
! 211: else
! 212: paswrite(0, PRESCALE_DIVIDER);
! 213:
! 214: paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER);
! 215: paswrite(5, PARALLEL_MIXER);
! 216:
! 217: /*
! 218: * Setup SoundBlaster emulation.
! 219: */
! 220: paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS);
! 221: paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq],
! 222: EMULATION_CONFIGURATION);
! 223: paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE);
! 224:
! 225: /*
! 226: * Set mid-range levels.
! 227: */
! 228: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER);
! 229: paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER);
! 230:
! 231: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER);
! 232: paswrite(50, PARALLEL_MIXER);
! 233: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER);
! 234: paswrite(50, PARALLEL_MIXER);
! 235:
! 236: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER);
! 237: paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER);
! 238:
! 239: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER);
! 240: paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER);
! 241: }
! 242:
! 243: int pasprobe(struct device *, void *, void *);
! 244: void pasattach(struct device *, struct device *, void *);
! 245:
! 246: struct cfattach pas_ca = {
! 247: sizeof(struct pas_softc), pasprobe, pasattach
! 248: };
! 249:
! 250: struct cfdriver pas_cd = {
! 251: NULL, "pas", DV_DULL
! 252: };
! 253:
! 254: /*
! 255: * Probe / attach routines.
! 256: */
! 257:
! 258: /*
! 259: * Probe for the soundblaster hardware.
! 260: */
! 261: int
! 262: pasprobe(parent, match, aux)
! 263: struct device *parent;
! 264: void *match, *aux;
! 265: {
! 266: struct pas_softc *sc = match;
! 267: struct isa_attach_args *ia = aux;
! 268: int iobase;
! 269: u_char id, t;
! 270:
! 271: /* ensure we can set this up as a sound blaster */
! 272: if (!SB_BASE_VALID(ia->ia_iobase)) {
! 273: DPRINTF(("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase));
! 274: return 0;
! 275: }
! 276:
! 277: /*
! 278: * WARNING: Setting an option like W:1 or so that disables
! 279: * warm boot reset of the card will screw up this detect code
! 280: * something fierce. Adding code to handle this means possibly
! 281: * interfering with other cards on the bus if you have something
! 282: * on base port 0x388. SO be forewarned.
! 283: */
! 284: /* Talk to first board */
! 285: outb(MASTER_DECODE, 0xbc);
! 286: /* Set base address */
! 287:
! 288: #if 0
! 289: /* XXX Need to setup pseudo device */
! 290: /* XXX What are good io addrs ? */
! 291: if (iobase != PAS_DEFAULT_BASE) {
! 292: DPRINTF(("pas: configured iobase %d invalid\n", iobase));
! 293: return 0;
! 294: }
! 295: #else
! 296: /* Start out talking to native PAS */
! 297: iobase = PAS_DEFAULT_BASE;
! 298: #endif
! 299:
! 300: outb(MASTER_DECODE, iobase >> 2);
! 301: /* One wait-state */
! 302: paswrite(1, WAIT_STATE);
! 303:
! 304: id = pasread(INTERRUPT_MASK);
! 305: if (id == 0xff || id == 0xfe) {
! 306: /* sanity */
! 307: DPRINTF(("pas: bogus card id\n"));
! 308: return 0;
! 309: }
! 310: /*
! 311: * We probably have a PAS-series board, now check for a
! 312: * PAS2-series board by trying to change the board revision
! 313: * bits. PAS2-series hardware won't let you do this because
! 314: * the bits are read-only.
! 315: */
! 316: t = id ^ 0xe0;
! 317: paswrite(t, INTERRUPT_MASK);
! 318: t = inb(INTERRUPT_MASK);
! 319: paswrite(id, INTERRUPT_MASK);
! 320:
! 321: if (t != id) {
! 322: /* Not a PAS2 */
! 323: DPRINTF(("pas: detected card but PAS2 test failed\n"));
! 324: return 0;
! 325: }
! 326: /*XXX*/
! 327: t = pasread(OPERATION_MODE_1) & 0xf;
! 328: sc->model = O_M_1_to_card[t];
! 329: if (sc->model != 0) {
! 330: sc->rev = pasread(BOARD_REV_ID);
! 331: }
! 332: else {
! 333: DPRINTF(("pas: bogus model id\n"));
! 334: return 0;
! 335: }
! 336:
! 337: if (sc->model >= 0) {
! 338: if (ia->ia_irq == IRQUNK) {
! 339: DPRINTF(("pas: sb emulation requires known irq\n"));
! 340: return (0);
! 341: }
! 342: pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1);
! 343: } else {
! 344: DPRINTF(("pas: could not probe pas\n"));
! 345: return (0);
! 346: }
! 347:
! 348: /* Now a SoundBlaster, so set up proper bus-space hooks
! 349: * appropriately
! 350: */
! 351:
! 352: sc->sc_sbdsp.sc_iobase = ia->ia_iobase;
! 353: sc->sc_sbdsp.sc_iot = ia->ia_iot;
! 354:
! 355: /* Map i/o space [we map 24 ports which is the max of the sb and pro */
! 356: if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0,
! 357: &sc->sc_sbdsp.sc_ioh)) {
! 358: DPRINTF(("pas: can't map i/o space 0x%x/%d in probe\n",
! 359: ia->ia_iobase, SBP_NPORT));
! 360: return 0;
! 361: }
! 362:
! 363: if (sbdsp_reset(&sc->sc_sbdsp) < 0) {
! 364: DPRINTF(("pas: couldn't reset card\n"));
! 365: goto unmap;
! 366: }
! 367:
! 368: /*
! 369: * Cannot auto-discover DMA channel.
! 370: */
! 371: if (!SB_DRQ_VALID(ia->ia_drq)) {
! 372: DPRINTF(("pas: configured dma chan %d invalid\n", ia->ia_drq));
! 373: goto unmap;
! 374: }
! 375: if (!SB_IRQ_VALID(ia->ia_irq)) {
! 376: DPRINTF(("pas: configured irq chan %d invalid\n", ia->ia_irq));
! 377: goto unmap;
! 378: }
! 379:
! 380: sc->sc_sbdsp.sc_irq = ia->ia_irq;
! 381: sc->sc_sbdsp.sc_drq8 = ia->ia_drq;
! 382: sc->sc_sbdsp.sc_drq16 = -1; /* XXX */
! 383: sc->sc_sbdsp.sc_ic = ia->ia_ic;
! 384:
! 385: if (sbdsp_probe(&sc->sc_sbdsp) == 0) {
! 386: DPRINTF(("pas: sbdsp probe failed\n"));
! 387: goto unmap;
! 388: }
! 389:
! 390: ia->ia_iosize = SB_NPORT;
! 391: return 1;
! 392:
! 393: unmap:
! 394: bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT);
! 395: return 0;
! 396: }
! 397:
! 398: /*
! 399: * Attach hardware to driver, attach hardware driver to audio
! 400: * pseudo-device driver .
! 401: */
! 402: void
! 403: pasattach(parent, self, aux)
! 404: struct device *parent, *self;
! 405: void *aux;
! 406: {
! 407: struct pas_softc *sc = (struct pas_softc *)self;
! 408: struct isa_attach_args *ia = (struct isa_attach_args *)aux;
! 409: int iobase = ia->ia_iobase;
! 410:
! 411: sc->sc_sbdsp.sc_isa = parent;
! 412: sc->sc_sbdsp.sc_iobase = iobase;
! 413: sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
! 414: IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp, sc->sc_sbdsp.sc_dev.dv_xname);
! 415:
! 416: printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], sc->rev);
! 417:
! 418: sbdsp_attach(&sc->sc_sbdsp);
! 419:
! 420: snprintf(pas_device.name, sizeof pas_device.name, "pas,%s",
! 421: pasnames[sc->model]);
! 422: snprintf(pas_device.version, sizeof pas_device.version, "%d",
! 423: sc->rev);
! 424:
! 425: audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev);
! 426: }
! 427:
! 428: int
! 429: pas_getdev(addr, retp)
! 430: void *addr;
! 431: struct audio_device *retp;
! 432: {
! 433: *retp = pas_device;
! 434: return 0;
! 435: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to pas.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / dev / isa