/* $NetBSD: audioamd.c,v 1.29.2.1 2021/03/31 13:45:54 martin 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 __KERNEL_RCSID(0, "$NetBSD: audioamd.c,v 1.29.2.1 2021/03/31 13:45:54 martin Exp $"); #include "audio.h" #if NAUDIO > 0 #include #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 */ int am7930hwintr(void *); struct auio *auiop; void am7930swintr(void *); /* from amd7930intr.s: */ void amd7930_trap(void); /* * interrupt-handler status */ struct am7930_intrhand { int (*ih_fun)(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 *sc_sicookie; /* softintr(9) cookie */ kmutex_t sc_lock; }; int audioamd_mainbus_match(device_t, cfdata_t, void *); void audioamd_mainbus_attach(device_t, device_t, void *); int audioamd_obio_match(device_t, cfdata_t, void *); void audioamd_obio_attach(device_t, device_t, void *); int audioamd_sbus_match(device_t, cfdata_t, void *); void audioamd_sbus_attach(device_t, device_t, void *); void audioamd_attach(struct audioamd_softc *, int); CFATTACH_DECL_NEW(audioamd_mainbus, sizeof(struct audioamd_softc), audioamd_mainbus_match, audioamd_mainbus_attach, NULL, NULL); CFATTACH_DECL_NEW(audioamd_obio, sizeof(struct audioamd_softc), audioamd_obio_match, audioamd_obio_attach, NULL, NULL); CFATTACH_DECL_NEW(audioamd_sbus, sizeof(struct audioamd_softc), audioamd_sbus_match, audioamd_sbus_attach, NULL, NULL); /* * Define our interface into the am7930 MI driver. */ uint8_t audioamd_codec_iread(struct am7930_softc *, int); uint16_t audioamd_codec_iread16(struct am7930_softc *, int); uint8_t audioamd_codec_dread(struct audioamd_softc *, int); void audioamd_codec_iwrite(struct am7930_softc *, int, uint8_t); void audioamd_codec_iwrite16(struct am7930_softc *, int, uint16_t); void audioamd_codec_dwrite(struct audioamd_softc *, int, uint8_t); void audioamd_onopen(struct am7930_softc *); void audioamd_onclose(struct am7930_softc *); struct am7930_glue audioamd_glue = { audioamd_codec_iread, audioamd_codec_iwrite, audioamd_codec_iread16, audioamd_codec_iwrite16, audioamd_onopen, audioamd_onclose, }; /* * Define our interface to the higher level audio driver. */ int audioamd_start_output(void *, void *, int, void (*)(void *), void *); int audioamd_start_input(void *, void *, int, void (*)(void *), void *); int audioamd_getdev(void *, struct audio_device *); void audioamd_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread); const struct audio_hw_if sa_hw_if = { .open = am7930_open, .close = am7930_close, .query_format = am7930_query_format, .set_format = am7930_set_format, .commit_settings = am7930_commit_settings, .start_output = audioamd_start_output, /* md */ .start_input = audioamd_start_input, /* md */ .halt_output = am7930_halt_output, .halt_input = am7930_halt_input, .getdev = audioamd_getdev, .set_port = am7930_set_port, .get_port = am7930_get_port, .query_devinfo = am7930_query_devinfo, .get_props = am7930_get_props, .get_locks = audioamd_get_locks, }; struct audio_device audioamd_device = { "am7930", "x", "audioamd" }; int audioamd_mainbus_match(device_t parent, cfdata_t cf, void *aux) { struct mainbus_attach_args *ma; ma = aux; if (CPU_ISSUN4) return 0; return strcmp(AUDIO_ROM_NAME, ma->ma_name) == 0; } int audioamd_obio_match(device_t parent, cfdata_t cf, void *aux) { union obio_attach_args *uoba; uoba = aux; if (uoba->uoba_isobio4 != 0) return 0; return strcmp("audio", uoba->uoba_sbus.sa_name) == 0; } int audioamd_sbus_match(device_t parent, cfdata_t cf, void *aux) { struct sbus_attach_args *sa; sa = aux; return strcmp(AUDIO_ROM_NAME, sa->sa_name) == 0; } void audioamd_mainbus_attach(device_t parent, device_t self, void *aux) { struct mainbus_attach_args *ma; struct audioamd_softc *sc; bus_space_handle_t bh; ma = aux; sc = device_private(self); sc->sc_am7930.sc_dev = self; sc->sc_bt = ma->ma_bustag; if (bus_space_map( ma->ma_bustag, ma->ma_paddr, AM7930_DREG_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) { printf("%s: cannot map registers\n", device_xname(self)); return; } sc->sc_bh = bh; audioamd_attach(sc, ma->ma_pri); } void audioamd_obio_attach(device_t parent, device_t self, void *aux) { union obio_attach_args *uoba; struct sbus_attach_args *sa; struct audioamd_softc *sc; bus_space_handle_t bh; uoba = aux; sa = &uoba->uoba_sbus; sc = device_private(self); sc->sc_am7930.sc_dev = self; sc->sc_bt = sa->sa_bustag; if (sbus_bus_map(sa->sa_bustag, sa->sa_slot, sa->sa_offset, AM7930_DREG_SIZE, 0, &bh) != 0) { printf("%s: cannot map registers\n", device_xname(self)); return; } sc->sc_bh = bh; audioamd_attach(sc, sa->sa_pri); } void audioamd_sbus_attach(device_t parent, device_t self, void *aux) { struct sbus_attach_args *sa; struct audioamd_softc *sc; bus_space_handle_t bh; sa = aux; sc = device_private(self); sc->sc_am7930.sc_dev = self; sc->sc_bt = sa->sa_bustag; if (sbus_bus_map(sa->sa_bustag, sa->sa_slot, sa->sa_offset, AM7930_DREG_SIZE, 0, &bh) != 0) { printf("%s: cannot map registers\n", device_xname(self)); return; } sc->sc_bh = bh; audioamd_attach(sc, sa->sa_pri); } void audioamd_attach(struct audioamd_softc *sc, int pri) { device_t self; /* * Set up glue for MI code early; we use some of it here. */ self = sc->sc_am7930.sc_dev; sc->sc_am7930.sc_glue = &audioamd_glue; mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_HIGH); am7930_init(&sc->sc_am7930, AUDIOAMD_POLL_MODE); auiop = &sc->sc_au; /* Copy bus tag & handle for use by am7930_trap */ sc->sc_au.au_bt = sc->sc_bt; sc->sc_au.au_bh = sc->sc_bh; (void)bus_intr_establish2(sc->sc_bt, pri, IPL_HIGH, am7930hwintr, sc, #ifdef notyet /* XXX amd7930intr.s needs to be fixed for MI softint(9) */ amd7930_trap #else NULL #endif ); sc->sc_sicookie = softint_establish(SOFTINT_SERIAL, am7930swintr, sc); if (sc->sc_sicookie == NULL) { printf("\n%s: cannot establish software interrupt\n", device_xname(self)); return; } printf(" softpri %d\n", IPL_SOFTAUDIO); evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, device_xname(self), "intr"); audio_attach_mi(&sa_hw_if, sc, self); } void audioamd_onopen(struct am7930_softc *sc) { struct audioamd_softc *mdsc; mdsc = (struct audioamd_softc *)sc; /* reset pdma state */ mutex_spin_enter(&mdsc->sc_lock); 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; mutex_spin_exit(&mdsc->sc_lock); } void audioamd_onclose(struct am7930_softc *sc) { /* On sparc, just do the chipset-level halt. */ am7930_halt_input(sc); am7930_halt_output(sc); } int audioamd_start_output(void *addr, void *p, int cc, void (*intr)(void *), void *arg) { struct audioamd_softc *sc; DPRINTFN(1, ("sa_start_output: cc=%d %p (%p)\n", cc, intr, arg)); sc = addr; mutex_spin_enter(&sc->sc_lock); audioamd_codec_iwrite(&sc->sc_am7930, AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE); sc->sc_pintr = intr; sc->sc_parg = arg; sc->sc_au.au_pdata = p; sc->sc_au.au_pend = (char *)p + cc - 1; mutex_spin_exit(&sc->sc_lock); DPRINTF(("sa_start_output: started intrs.\n")); return(0); } int audioamd_start_input(void *addr, void *p, int cc, void (*intr)(void *), void *arg) { struct audioamd_softc *sc; DPRINTFN(1, ("sa_start_input: cc=%d %p (%p)\n", cc, intr, arg)); sc = addr; mutex_spin_enter(&sc->sc_lock); audioamd_codec_iwrite(&sc->sc_am7930, AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE); sc->sc_rintr = intr; sc->sc_rarg = arg; sc->sc_au.au_rdata = p; sc->sc_au.au_rend = (char *)p + cc -1; mutex_spin_exit(&sc->sc_lock); DPRINTF(("sa_start_input: started intrs.\n")); return(0); } /* * Pseudo-DMA support: either C or locore assember. */ int am7930hwintr(void *v) { struct audioamd_softc *sc; struct auio *au; uint8_t *d, *e; int k; sc = v; au = &sc->sc_au; mutex_spin_enter(&sc->sc_lock); /* clear interrupt */ k = audioamd_codec_dread(sc, AM7930_DREG_IR); if ((k & (AM7930_IR_DTTHRSH|AM7930_IR_DRTHRSH|AM7930_IR_DSRI| AM7930_IR_DERI|AM7930_IR_BBUFF)) == 0) { mutex_spin_exit(&sc->sc_lock); return 0; } /* 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")); softint_schedule(sc->sc_sicookie); } } /* 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")); softint_schedule(sc->sc_sicookie); } } au->au_intrcnt.ev_count++; mutex_spin_exit(&sc->sc_lock); return 1; } void am7930swintr(void *sc0) { struct audioamd_softc *sc; struct auio *au; bool pint; sc = sc0; DPRINTFN(1, ("audiointr: sc=%p\n", sc);); au = &sc->sc_au; mutex_spin_enter(&sc->sc_am7930.sc_intr_lock); if (au->au_rdata > au->au_rend && sc->sc_rintr != NULL) { (*sc->sc_rintr)(sc->sc_rarg); } pint = (au->au_pdata > au->au_pend && sc->sc_pintr != NULL); if (pint) (*sc->sc_pintr)(sc->sc_parg); mutex_spin_exit(&sc->sc_am7930.sc_intr_lock); } /* indirect write */ void audioamd_codec_iwrite(struct am7930_softc *sc, int reg, uint8_t val) { struct audioamd_softc *mdsc; 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(struct am7930_softc *sc, int reg, uint16_t val) { struct audioamd_softc *mdsc; 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 */ uint8_t audioamd_codec_iread(struct am7930_softc *sc, int reg) { struct audioamd_softc *mdsc; mdsc = (struct audioamd_softc *)sc; audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg); return (audioamd_codec_dread(mdsc, AM7930_DREG_DR)); } uint16_t audioamd_codec_iread16(struct am7930_softc *sc, int reg) { struct audioamd_softc *mdsc; uint8_t lo, hi; mdsc = (struct audioamd_softc *)sc; 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 */ uint8_t audioamd_codec_dread(struct audioamd_softc *sc, int reg) { return bus_space_read_1(sc->sc_bt, sc->sc_bh, reg); } /* direct write */ void audioamd_codec_dwrite(struct audioamd_softc *sc, int reg, uint8_t val) { bus_space_write_1(sc->sc_bt, sc->sc_bh, reg, val); } int audioamd_getdev(void *addr, struct audio_device *retp) { *retp = audioamd_device; return 0; } void audioamd_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread) { struct audioamd_softc *asc = opaque; struct am7930_softc *sc = &asc->sc_am7930; *intr = &sc->sc_intr_lock; *thread = &sc->sc_lock; } #endif /* NAUDIO > 0 */