/* $NetBSD: vsaudio.c,v 1.7 2020/09/12 05:19:16 isaki Exp $ */ /* $OpenBSD: vsaudio.c,v 1.4 2013/05/15 21:21:11 ratchov Exp $ */ /* * Copyright (c) 2011 Miodrag Vallat. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * 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. */ /* * Audio backend for the VAXstation 4000 AMD79C30 audio chip. * Currently working in pseudo-DMA mode; DMA operation may be possible and * needs to be investigated. */ /* * Although he did not claim copyright for his work, this code owes a lot * to Blaz Antonic who figured out a working * interrupt triggering routine in vsaudio_match(). */ /* * Ported to NetBSD, from OpenBSD, by Björn Johannesson (rherdware@yahoo.com) * in December 2014 */ #include "audio.h" #if NAUDIO > 0 #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* physical addresses of the AM79C30 chip */ #define VSAUDIO_CSR 0x200d0000 #define VSAUDIO_CSR_KA49 0x26800000 struct vsaudio_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 */ }; static int vsaudio_match(struct device *parent, struct cfdata *match, void *); static void vsaudio_attach(device_t parent, device_t self, void *); static void vsaudio_hwintr(void *); CFATTACH_DECL_NEW(vsaudio, sizeof(struct vsaudio_softc), vsaudio_match, vsaudio_attach, NULL, NULL); /* * Hardware access routines for the MI code */ uint8_t vsaudio_codec_dread(struct am7930_softc *, int); void vsaudio_codec_dwrite(struct am7930_softc *, int, uint8_t); struct am7930_glue vsaudio_glue = { vsaudio_codec_dread, vsaudio_codec_dwrite, }; /* * Interface to the MI audio layer. */ int vsaudio_getdev(void *, struct audio_device *); struct audio_hw_if vsaudio_hw_if = { .query_format = am7930_query_format, .set_format = am7930_set_format, .commit_settings = am7930_commit_settings, .trigger_output = am7930_trigger_output, .trigger_input = am7930_trigger_input, .halt_output = am7930_halt_output, .halt_input = am7930_halt_input, .getdev = vsaudio_getdev, .set_port = am7930_set_port, .get_port = am7930_get_port, .query_devinfo = am7930_query_devinfo, .get_props = am7930_get_props, .get_locks = am7930_get_locks, }; struct audio_device vsaudio_device = { "am7930", "x", "vsaudio" }; static int vsaudio_match(struct device *parent, struct cfdata *match, void *aux) { struct vsbus_attach_args *va = aux; volatile uint32_t *regs; int i; switch (vax_boardtype) { #if defined(VAX_BTYP_46) || defined(VAX_BTYP_48) case VAX_BTYP_46: case VAX_BTYP_48: if (va->va_paddr != VSAUDIO_CSR) return 0; break; #endif #if defined(VAX_BTYP_49) case VAX_BTYP_49: if (va->va_paddr != VSAUDIO_CSR_KA49) return 0; break; #endif default: return 0; } regs = (volatile uint32_t *)va->va_addr; regs[AM7930_DREG_CR] = AM7930_IREG_INIT; regs[AM7930_DREG_DR] = AM7930_INIT_PMS_ACTIVE | AM7930_INIT_INT_ENABLE; regs[AM7930_DREG_CR] = AM7930_IREG_MUX_MCR1; regs[AM7930_DREG_DR] = 0; regs[AM7930_DREG_CR] = AM7930_IREG_MUX_MCR2; regs[AM7930_DREG_DR] = 0; regs[AM7930_DREG_CR] = AM7930_IREG_MUX_MCR3; regs[AM7930_DREG_DR] = (AM7930_MCRCHAN_BB << 4) | AM7930_MCRCHAN_BA; regs[AM7930_DREG_CR] = AM7930_IREG_MUX_MCR4; regs[AM7930_DREG_DR] = AM7930_MCR4_INT_ENABLE; for (i = 10; i < 20; i++) regs[AM7930_DREG_BBTB] = i; delay(1000000); /* XXX too large */ return 1; } static void vsaudio_attach(device_t parent, device_t self, void *aux) { struct vsbus_attach_args *va = aux; struct vsaudio_softc *sc = device_private(self); struct am7930_softc *amsc = &sc->sc_am7930; if (bus_space_map(va->va_memt, va->va_paddr, AM7930_DREG_SIZE << 2, 0, &sc->sc_bh) != 0) { printf(": can't map registers\n"); return; } sc->sc_bt = va->va_memt; amsc->sc_dev = self; amsc->sc_glue = &vsaudio_glue; am7930_init(amsc, AUDIOAMD_POLL_MODE); scb_vecalloc(va->va_cvec, vsaudio_hwintr, amsc, SCB_ISTACK, &amsc->sc_intrcnt); evcnt_attach_dynamic(&amsc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, device_xname(self), "intr"); aprint_normal("\n"); audio_attach_mi(&vsaudio_hw_if, sc, self); } static void vsaudio_hwintr(void *arg) { am7930_hwintr(arg); } /* direct read */ uint8_t vsaudio_codec_dread(struct am7930_softc *amsc, int reg) { struct vsaudio_softc *sc = (struct vsaudio_softc *)amsc; return bus_space_read_1(sc->sc_bt, sc->sc_bh, reg << 2); } /* direct write */ void vsaudio_codec_dwrite(struct am7930_softc *amsc, int reg, uint8_t val) { struct vsaudio_softc *sc = (struct vsaudio_softc *)amsc; bus_space_write_1(sc->sc_bt, sc->sc_bh, reg << 2, val); } int vsaudio_getdev(void *addr, struct audio_device *retp) { *retp = vsaudio_device; return 0; } #endif /* NAUDIO > 0 */