/* $OpenBSD: sb.c,v 1.15 1998/05/13 10:25:10 provos Exp $ */ /* $NetBSD: sb.c,v 1.57 1998/01/12 09:43:46 thorpej Exp $ */ /* * Copyright (c) 1991-1993 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the Computer Systems * Engineering Group at Lawrence Berkeley Laboratory. * 4. Neither the name of the University nor of the Laboratory may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct cfdriver sb_cd = { NULL, "sb", DV_DULL }; struct audio_device sb_device = { "SoundBlaster", "x", "sb" }; int sb_getdev __P((void *, struct audio_device *)); /* * Define our interface to the higher level audio driver. */ struct audio_hw_if sb_hw_if = { sbdsp_open, sbdsp_close, 0, sbdsp_query_encoding, sbdsp_set_params, sbdsp_round_blocksize, 0, sbdsp_dma_init_output, sbdsp_dma_init_input, sbdsp_dma_output, sbdsp_dma_input, sbdsp_haltdma, sbdsp_haltdma, sbdsp_speaker_ctl, sb_getdev, 0, sbdsp_mixer_set_port, sbdsp_mixer_get_port, sbdsp_mixer_query_devinfo, sb_malloc, sb_free, sb_round, sb_mappage, sbdsp_get_props, }; #ifdef AUDIO_DEBUG #define DPRINTF(x) if (sbdebug) printf x int sbdebug = 0; #else #define DPRINTF(x) #endif /* * Probe / attach routines. */ int sbmatch(sc) struct sbdsp_softc *sc; { static u_char drq_conf[8] = { 0x01, 0x02, -1, 0x08, -1, 0x20, 0x40, 0x80 }; static u_char irq_conf[11] = { -1, -1, 0x01, -1, -1, 0x02, -1, 0x04, -1, 0x01, 0x08 }; if (sbdsp_probe(sc) == 0) return 0; /* * Cannot auto-discover DMA channel. */ if (ISSBPROCLASS(sc)) { if (!SBP_DRQ_VALID(sc->sc_drq8)) { DPRINTF(("%s: configured dma chan %d invalid\n", sc->sc_dev.dv_xname, sc->sc_drq8)); return 0; } } else { if (!SB_DRQ_VALID(sc->sc_drq8)) { DPRINTF(("%s: configured dma chan %d invalid\n", sc->sc_dev.dv_xname, sc->sc_drq8)); return 0; } } if (0 <= sc->sc_drq16 && sc->sc_drq16 <= 3) /* * XXX Some ViBRA16 cards seem to have two 8 bit DMA * channels. I've no clue how to use them, so ignore * one of them for now. -- augustss@netbsd.org */ sc->sc_drq16 = -1; if (ISSB16CLASS(sc)) { if (sc->sc_drq16 == -1) sc->sc_drq16 = sc->sc_drq8; if (!SB16_DRQ_VALID(sc->sc_drq16)) { DPRINTF(("%s: configured dma chan %d invalid\n", sc->sc_dev.dv_xname, sc->sc_drq16)); return 0; } } else sc->sc_drq16 = sc->sc_drq8; #ifdef NEWCONFIG /* * If the IRQ wasn't compiled in, auto-detect it. */ if (sc->sc_irq == IRQUNK) { sc->sc_irq = isa_discoverintr(sbforceintr, sc); sbdsp_reset(sc); if (ISSBPROCLASS(sc)) { if (!SBP_IRQ_VALID(sc->sc_irq)) { DPRINTF(("%s: couldn't auto-detect interrupt\n", sc->sc_dev.dv_xname)); return 0; } } else { if (!SB_IRQ_VALID(sc->sc_irq)) { DPRINTF(("%s: couldn't auto-detect interrupt\n", sc->sc_dev.dv_xname)); return 0; } } } else #endif if (ISSBPROCLASS(sc)) { if (!SBP_IRQ_VALID(sc->sc_irq)) { DPRINTF(("%s: configured irq %d invalid\n", sc->sc_dev.dv_xname, sc->sc_irq)); return 0; } } else { if (!SB_IRQ_VALID(sc->sc_irq)) { DPRINTF(("%s: configured irq %d invalid\n", sc->sc_dev.dv_xname, sc->sc_irq)); return 0; } } if (ISSB16CLASS(sc)) { int w, r; #if 0 DPRINTF(("%s: old drq conf %02x\n", sc->sc_dev.dv_xname, sbdsp_mix_read(sc, SBP_SET_DRQ))); DPRINTF(("%s: try drq conf %02x\n", sc->sc_dev.dv_xname, drq_conf[sc->sc_drq16] | drq_conf[sc->sc_drq8])); #endif w = drq_conf[sc->sc_drq16] | drq_conf[sc->sc_drq8]; sbdsp_mix_write(sc, SBP_SET_DRQ, w); r = sbdsp_mix_read(sc, SBP_SET_DRQ) & 0xeb; if (r != w) { DPRINTF(("%s: setting drq mask %02x failed, got %02x\n", sc->sc_dev.dv_xname, w, r)); return 0; } #if 0 DPRINTF(("%s: new drq conf %02x\n", sc->sc_dev.dv_xname, sbdsp_mix_read(sc, SBP_SET_DRQ))); #endif #if 0 DPRINTF(("%s: old irq conf %02x\n", sc->sc_dev.dv_xname, sbdsp_mix_read(sc, SBP_SET_IRQ))); DPRINTF(("%s: try irq conf %02x\n", sc->sc_dev.dv_xname, irq_conf[sc->sc_irq])); #endif w = irq_conf[sc->sc_irq]; sbdsp_mix_write(sc, SBP_SET_IRQ, w); r = sbdsp_mix_read(sc, SBP_SET_IRQ) & 0x0f; if (r != w) { DPRINTF(("%s: setting irq mask %02x failed, got %02x\n", sc->sc_dev.dv_xname, w, r)); return 0; } #if 0 DPRINTF(("%s: new irq conf %02x\n", sc->sc_dev.dv_xname, sbdsp_mix_read(sc, SBP_SET_IRQ))); #endif } return 1; } void sbattach(sc) struct sbdsp_softc *sc; { sc->sc_ih = isa_intr_establish(sc->sc_ic, sc->sc_irq, IST_EDGE, IPL_AUDIO, sbdsp_intr, sc, sc->sc_dev.dv_xname); sbdsp_attach(sc); audio_attach_mi(&sb_hw_if, 0, sc, &sc->sc_dev); } #ifdef NEWCONFIG void sbforceintr(aux) void *aux; { static char dmabuf; struct sbdsp_softc *sc = aux; /* * Set up a DMA read of one byte. * XXX Note that at this point we haven't called * at_setup_dmachan(). This is okay because it just * allocates a buffer in case it needs to make a copy, * and it won't need to make a copy for a 1 byte buffer. * (I think that calling at_setup_dmachan() should be optional; * if you don't call it, it will be called the first time * it is needed (and you pay the latency). Also, you might * never need the buffer anyway.) */ at_dma(DMAMODE_READ, &dmabuf, 1, sc->sc_drq8); if (sbdsp_wdsp(sc, SB_DSP_RDMA) == 0) { (void)sbdsp_wdsp(sc, 0); (void)sbdsp_wdsp(sc, 0); } } #endif /* * Various routines to interface to higher level audio driver */ int sb_getdev(addr, retp) void *addr; struct audio_device *retp; { struct sbdsp_softc *sc = addr; static char *names[] = SB_NAMES; char *config; if (sc->sc_model == SB_JAZZ) strncpy(retp->name, "MV Jazz16", sizeof(retp->name)); else strncpy(retp->name, "SoundBlaster", sizeof(retp->name)); sprintf(retp->version, "%d.%02d", SBVER_MAJOR(sc->sc_version), SBVER_MINOR(sc->sc_version)); if (0 <= sc->sc_model && sc->sc_model < sizeof names / sizeof names[0]) config = names[sc->sc_model]; else config = "??"; strncpy(retp->config, config, sizeof(retp->config)); return 0; }