/* $NetBSD: audioamd.c,v 1.3 2000/05/08 03:09:56 mycroft Exp $ */ /* NetBSD: am7930_sparc.c,v 1.44 1999/03/14 22:29:00 jonathan Exp */ /* * Copyright (c) 1995 Rolf Grossmann * 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 Rolf Grossmann. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "audio.h" #if NAUDIO > 0 #include #include #include #include #include #include #include #include #include #include #include #include #define AUDIO_ROM_NAME "audio" #ifdef AUDIO_DEBUG #define DPRINTF(x) if (am7930debug) printf x #define DPRINTFN(n,x) if (am7930debug>(n)) printf x #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif /* AUDIO_DEBUG */ /* interrupt interfaces */ #ifdef AUDIO_C_HANDLER int am7930hwintr __P((void *)); #if defined(SUN4M) #define AUDIO_SET_SWINTR do { \ if (CPU_ISSUN4M) \ raise(0, 4); \ else \ ienab_bis(IE_L4); \ } while(0); #else #define AUDIO_SET_SWINTR ienab_bis(IE_L4) #endif /* defined(SUN4M) */ #else struct auio *auiop; #endif /* AUDIO_C_HANDLER */ int am7930swintr __P((void *)); /* * interrupt-handler status */ struct am7930_intrhand { int (*ih_fun) __P((void *)); void *ih_arg; }; struct audioamd_softc { struct am7930_softc sc_am7930; /* glue to MI code */ bus_space_tag_t sc_bt; /* bus cookie */ bus_space_handle_t sc_bh; /* device registers */ struct am7930_intrhand sc_ih; /* interrupt vector (hw or sw) */ void (*sc_rintr)(void*); /* input completion intr handler */ void *sc_rarg; /* arg for sc_rintr() */ void (*sc_pintr)(void*); /* output completion intr handler */ void *sc_parg; /* arg for sc_pintr() */ /* sc_au is special in that the hardware interrupt handler uses it */ struct auio sc_au; /* recv and xmit buffers, etc */ #define sc_intrcnt sc_au.au_intrcnt /* statistics */ }; void audioamd_mainbus_attach __P((struct device *, struct device *, void *)); int audioamd_mainbus_match __P((struct device *, struct cfdata *, void *)); void audioamd_sbus_attach __P((struct device *, struct device *, void *)); int audioamd_sbus_match __P((struct device *, struct cfdata *, void *)); void audioamd_attach(struct audioamd_softc *sc, int); struct cfattach audioamd_mainbus_ca = { sizeof(struct audioamd_softc), audioamd_mainbus_match, audioamd_mainbus_attach }; struct cfattach audioamd_sbus_ca = { sizeof(struct audioamd_softc), audioamd_sbus_match, audioamd_sbus_attach }; /* * Define our interface into the am7930 MI driver. */ u_int8_t audioamd_codec_iread __P((struct am7930_softc *, int)); u_int16_t audioamd_codec_iread16 __P((struct am7930_softc *, int)); u_int8_t audioamd_codec_dread __P((struct audioamd_softc *, int)); void audioamd_codec_iwrite __P((struct am7930_softc *, int, u_int8_t)); void audioamd_codec_iwrite16 __P((struct am7930_softc *, int, u_int16_t)); void audioamd_codec_dwrite __P((struct audioamd_softc *, int, u_int8_t)); void audioamd_onopen __P((struct am7930_softc *sc)); void audioamd_onclose __P((struct am7930_softc *sc)); struct am7930_glue audioamd_glue = { audioamd_codec_iread, audioamd_codec_iwrite, audioamd_codec_iread16, audioamd_codec_iwrite16, audioamd_onopen, audioamd_onclose, 0, 0, 0, }; /* * Define our interface to the higher level audio driver. */ int audioamd_start_output __P((void *, void *, int, void (*)(void *), void *)); int audioamd_start_input __P((void *, void *, int, void (*)(void *), void *)); int audioamd_getdev __P((void *, struct audio_device *)); struct audio_hw_if sa_hw_if = { am7930_open, am7930_close, 0, am7930_query_encoding, am7930_set_params, am7930_round_blocksize, am7930_commit_settings, 0, 0, audioamd_start_output, /* md */ audioamd_start_input, /* md */ am7930_halt_output, am7930_halt_input, 0, audioamd_getdev, 0, am7930_set_port, am7930_get_port, am7930_query_devinfo, 0, 0, 0, 0, am7930_get_props, }; struct audio_device audioamd_device = { "am7930", "x", "audioamd" }; int audioamd_mainbus_match(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct mainbus_attach_args *ma = aux; if (CPU_ISSUN4) return (0); return (strcmp(AUDIO_ROM_NAME, ma->ma_name) == 0); } int audioamd_sbus_match(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct sbus_attach_args *sa = aux; return (strcmp(AUDIO_ROM_NAME, sa->sa_name) == 0); } void audioamd_mainbus_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct mainbus_attach_args *ma = aux; struct audioamd_softc *sc = (struct audioamd_softc *)self; bus_space_handle_t bh; sc->sc_bt = ma->ma_bustag; if (bus_space_map2( ma->ma_bustag, ma->ma_iospace, ma->ma_paddr, AM7930_DREG_SIZE, BUS_SPACE_MAP_LINEAR, 0, &bh) != 0) { printf("%s: cannot map registers\n", self->dv_xname); return; } sc->sc_bh = bh; audioamd_attach(sc, ma->ma_pri); } void audioamd_sbus_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct sbus_attach_args *sa = aux; struct audioamd_softc *sc = (struct audioamd_softc *)self; bus_space_handle_t bh; sc->sc_bt = sa->sa_bustag; if (sbus_bus_map( sa->sa_bustag, sa->sa_slot, sa->sa_offset, AM7930_DREG_SIZE, 0, 0, &bh) != 0) { printf("%s: cannot map registers\n", self->dv_xname); return; } sc->sc_bh = bh; audioamd_attach(sc, sa->sa_pri); } void audioamd_attach(sc, pri) struct audioamd_softc *sc; int pri; { printf(" softpri %d\n", PIL_AUSOFT); /* * Set up glue for MI code early; we use some of it here. */ sc->sc_am7930.sc_glue = &audioamd_glue; am7930_init(&sc->sc_am7930, AUDIOAMD_POLL_MODE); #ifndef AUDIO_C_HANDLER auiop = &sc->sc_au; (void)bus_intr_establish(sc->sc_bt, pri, BUS_INTR_ESTABLISH_FASTTRAP, (int (*) __P((void *)))amd7930_trap, NULL); #else (void)bus_intr_establish(sc->sc_bt, pri, 0, am7930hwintr, &sc->sc_au); #endif (void)bus_intr_establish(sc->sc_bt, PIL_AUSOFT, BUS_INTR_ESTABLISH_SOFTINTR, am7930swintr, sc); evcnt_attach(&sc->sc_am7930.sc_dev, "intr", &sc->sc_intrcnt); audio_attach_mi(&sa_hw_if, sc, &sc->sc_am7930.sc_dev); } void audioamd_onopen(sc) struct am7930_softc *sc; { struct audioamd_softc *mdsc = (struct audioamd_softc *)sc; /* reset pdma state */ mdsc->sc_rintr = 0; mdsc->sc_rarg = 0; mdsc->sc_pintr = 0; mdsc->sc_parg = 0; mdsc->sc_au.au_rdata = 0; mdsc->sc_au.au_pdata = 0; } void audioamd_onclose(sc) struct am7930_softc *sc; { /* On sparc, just do the chipset-level halt. */ am7930_halt_input(sc); am7930_halt_output(sc); } int audioamd_start_output(addr, p, cc, intr, arg) void *addr; void *p; int cc; void (*intr) __P((void *)); void *arg; { struct audioamd_softc *sc = addr; DPRINTFN(1, ("sa_start_output: cc=%d %p (%p)\n", cc, intr, arg)); if (!sc->sc_am7930.sc_locked) { audioamd_codec_iwrite(&sc->sc_am7930, AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE); sc->sc_am7930.sc_locked = 1; DPRINTF(("sa_start_output: started intrs.\n")); } sc->sc_pintr = intr; sc->sc_parg = arg; sc->sc_au.au_pdata = p; sc->sc_au.au_pend = (char *)p + cc - 1; return(0); } int audioamd_start_input(addr, p, cc, intr, arg) void *addr; void *p; int cc; void (*intr) __P((void *)); void *arg; { struct audioamd_softc *sc = addr; DPRINTFN(1, ("sa_start_input: cc=%d %p (%p)\n", cc, intr, arg)); if (!sc->sc_am7930.sc_locked) { audioamd_codec_iwrite(&sc->sc_am7930, AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE); sc->sc_am7930.sc_locked = 1; DPRINTF(("sa_start_input: started intrs.\n")); } sc->sc_rintr = intr; sc->sc_rarg = arg; sc->sc_au.au_rdata = p; sc->sc_au.au_rend = (char *)p + cc -1; return(0); } /* * Pseudo-DMA support: either C or locore assember. */ #ifdef AUDIO_C_HANDLER int am7930hwintr(au0) void *au0; { struct auio *au = au0; u_int8_t *d, *e; int k; /* XXX where is sc? */ /* clear interrupt */ k = audioamd_codec_dread(sc, AM7930_DREG_IR); /* receive incoming data */ d = au->au_rdata; e = au->au_rend; if (d && d <= e) { *d = audioamd_codec_dread(sc, AM7930_DREG_BBRB); au->au_rdata++; if (d == e) { DPRINTFN(1, ("am7930hwintr: swintr(r) requested")); AUDIO_SET_SWINTR; } } /* send outgoing data */ d = au->au_pdata; e = au->au_pend; if (d && d <= e) { audioamd_codec_dwrite(sc, AM7930_DREG_BBTB, *d); au->au_pdata++; if (d == e) { DPRINTFN(1, ("am7930hwintr: swintr(p) requested")); AUDIO_SET_SWINTR; } } *(au->au_intrcnt)++; return (1); } #endif /* AUDIO_C_HANDLER */ int am7930swintr(sc0) void *sc0; { struct audioamd_softc *sc = sc0; struct auio *au; int s, ret = 0; DPRINTFN(1, ("audiointr: sc=%p\n", sc);); au = &sc->sc_au; s = splaudio(); if (au->au_rdata > au->au_rend && sc->sc_rintr != NULL) { splx(s); ret = 1; (*sc->sc_rintr)(sc->sc_rarg); s = splaudio(); } if (au->au_pdata > au->au_pend && sc->sc_pintr != NULL) { splx(s); ret = 1; (*sc->sc_pintr)(sc->sc_parg); } else splx(s); return (ret); } /* indirect write */ void audioamd_codec_iwrite(sc, reg, val) struct am7930_softc *sc; int reg; u_int8_t val; { struct audioamd_softc *mdsc = (struct audioamd_softc *)sc; audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg); audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val); } void audioamd_codec_iwrite16(sc, reg, val) struct am7930_softc *sc; int reg; u_int16_t val; { struct audioamd_softc *mdsc = (struct audioamd_softc *)sc; audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg); audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val); audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val>>8); } /* indirect read */ u_int8_t audioamd_codec_iread(sc, reg) struct am7930_softc *sc; int reg; { struct audioamd_softc *mdsc = (struct audioamd_softc *)sc; audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg); return (audioamd_codec_dread(mdsc, AM7930_DREG_DR)); } u_int16_t audioamd_codec_iread16(sc, reg) struct am7930_softc *sc; int reg; { struct audioamd_softc *mdsc = (struct audioamd_softc *)sc; u_int8_t lo, hi; audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg); lo = audioamd_codec_dread(mdsc, AM7930_DREG_DR); hi = audioamd_codec_dread(mdsc, AM7930_DREG_DR); return ((hi << 8) | lo); } /* direct read */ u_int8_t audioamd_codec_dread(sc, reg) struct audioamd_softc *sc; int reg; { return (bus_space_read_1(sc->sc_bt, sc->sc_bh, reg)); } /* direct write */ void audioamd_codec_dwrite(sc, reg, val) struct audioamd_softc *sc; int reg; u_int8_t val; { bus_space_write_1(sc->sc_bt, sc->sc_bh, reg, val); } int audioamd_getdev(addr, retp) void *addr; struct audio_device *retp; { *retp = audioamd_device; return (0); } #endif /* NAUDIO > 0 */