/* $NetBSD: cs4231_sbus.c,v 1.21 2002/07/16 11:48:45 mrg Exp $ */ /*- * Copyright (c) 1998, 1999, 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Paul Kranenburg. * * 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 NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 __KERNEL_RCSID(0, "$NetBSD: cs4231_sbus.c,v 1.21 2002/07/16 11:48:45 mrg Exp $"); #include "audio.h" #if NAUDIO > 0 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef AUDIO_DEBUG int cs4231_sbus_debug = 0; #define DPRINTF(x) if (cs4231_sbus_debug) printf x #else #define DPRINTF(x) #endif /* where APC DMA registers are located */ #define CS4231_APCDMA_OFFSET 16 /* interrupt enable bits except those specific for playback/capture */ #define APC_ENABLE (APC_EI | APC_IE | APC_EIE) struct cs4231_sbus_softc { struct cs4231_softc sc_cs4231; struct sbusdev sc_sd; /* sbus device */ bus_space_tag_t sc_bt; /* DMA controller tag */ bus_space_handle_t sc_bh; /* DMA controller registers */ }; static int cs4231_sbus_match(struct device *, struct cfdata *, void *); static void cs4231_sbus_attach(struct device *, struct device *, void *); struct cfattach audiocs_sbus_ca = { sizeof(struct cs4231_sbus_softc), cs4231_sbus_match, cs4231_sbus_attach }; /* audio_hw_if methods specific to apc dma */ static int cs4231_sbus_trigger_output(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); static int cs4231_sbus_trigger_input(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); static int cs4231_sbus_halt_output(void *); static int cs4231_sbus_halt_input(void *); struct audio_hw_if audiocs_sbus_hw_if = { cs4231_open, cs4231_close, NULL, /* drain */ ad1848_query_encoding, ad1848_set_params, cs4231_round_blocksize, ad1848_commit_settings, NULL, /* init_output */ NULL, /* init_input */ NULL, /* start_output */ NULL, /* start_input */ cs4231_sbus_halt_output, cs4231_sbus_halt_input, NULL, /* speaker_ctl */ cs4231_getdev, NULL, /* setfd */ cs4231_set_port, cs4231_get_port, cs4231_query_devinfo, cs4231_malloc, cs4231_free, cs4231_round_buffersize, NULL, /* mappage */ cs4231_get_props, cs4231_sbus_trigger_output, cs4231_sbus_trigger_input, NULL, /* dev_ioctl */ }; #ifdef AUDIO_DEBUG static void cs4231_sbus_regdump(char *, struct cs4231_sbus_softc *); #endif static int cs4231_sbus_intr(void *); static int cs4231_sbus_match(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct sbus_attach_args *sa = aux; return (strcmp(sa->sa_name, AUDIOCS_PROM_NAME) == 0); } static void cs4231_sbus_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct cs4231_sbus_softc *sbsc = (struct cs4231_sbus_softc *)self; struct cs4231_softc *sc = &sbsc->sc_cs4231; struct sbus_attach_args *sa = aux; bus_space_handle_t bh; sbsc->sc_bt = sc->sc_bustag = sa->sa_bustag; sc->sc_dmatag = sa->sa_dmatag; /* * Map my registers in, if they aren't already in virtual * address space. */ if (sa->sa_npromvaddrs) { sbus_promaddr_to_handle(sa->sa_bustag, sa->sa_promvaddrs[0], &bh); } else { if (sbus_bus_map(sa->sa_bustag, sa->sa_slot, sa->sa_offset, sa->sa_size, 0, &bh) != 0) { printf("%s @ sbus: cannot map registers\n", self->dv_xname); return; } } bus_space_subregion(sa->sa_bustag, bh, CS4231_APCDMA_OFFSET, sizeof(struct apc_dma), &sbsc->sc_bh); cs4231_common_attach(sc, bh); printf("\n"); sbus_establish(&sbsc->sc_sd, &sc->sc_ad1848.sc_dev); /* Establish interrupt channel */ if (sa->sa_nintr) bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_AUDIO, 0, cs4231_sbus_intr, sbsc); audio_attach_mi(&audiocs_sbus_hw_if, sbsc, &sc->sc_ad1848.sc_dev); } #ifdef AUDIO_DEBUG static void cs4231_sbus_regdump(label, sc) char *label; struct cs4231_sbus_softc *sc; { char bits[128]; volatile struct apc_dma *dma = NULL; printf("cs4231regdump(%s): regs:", label); printf("dmapva: 0x%x; ", bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmapva)); printf("dmapc: 0x%x; ", bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmapc)); printf("dmapnva: 0x%x; ", bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmapnva)); printf("dmapnc: 0x%x\n", bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmapnc)); printf("dmacva: 0x%x; ", bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmacva)); printf("dmacc: 0x%x; ", bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmacc)); printf("dmacnva: 0x%x; ", bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmacnva)); printf("dmacnc: 0x%x\n", bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmacnc)); printf("apc_dmacsr=%s\n", bitmask_snprintf( bus_space_read_4(sc->sc_bh, sc->sc_bh, &dma->dmacsr), APC_BITS, bits, sizeof(bits))); ad1848_dump_regs(&sc->sc_cs4231.sc_ad1848); } #endif /* AUDIO_DEBUG */ static int cs4231_sbus_trigger_output(addr, start, end, blksize, intr, arg, param) void *addr; void *start, *end; int blksize; void (*intr)(void *); void *arg; struct audio_params *param; { struct cs4231_sbus_softc *sbsc = addr; struct cs4231_softc *sc = &sbsc->sc_cs4231; struct cs_transfer *t = &sc->sc_playback; volatile struct apc_dma *dma = NULL; u_int32_t csr; bus_addr_t dmaaddr; bus_size_t dmasize; int ret; #ifdef AUDIO_DEBUG char bits[128]; #endif ret = cs4231_transfer_init(sc, t, &dmaaddr, &dmasize, start, end, blksize, intr, arg); if (ret != 0) return (ret); DPRINTF(("trigger_output: was: %x %d, %x %d\n", bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapc), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnc))); /* load first block */ bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnva, dmaaddr); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnc, dmasize); DPRINTF(("trigger_output: 1st: %x %d, %x %d\n", bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapc), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnc))); csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); DPRINTF(("trigger_output: csr=%s\n", bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)))); if ((csr & PDMA_GO) == 0 || (csr & APC_PPAUSE) != 0) { int cfg; csr &= ~(APC_PPAUSE | APC_PMIE | APC_INTR_MASK); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr, csr); csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); csr &= ~APC_INTR_MASK; csr |= APC_ENABLE | APC_PIE | APC_PMIE | PDMA_GO; bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr, csr); ad_write(&sc->sc_ad1848, SP_LOWER_BASE_COUNT, 0xff); ad_write(&sc->sc_ad1848, SP_UPPER_BASE_COUNT, 0xff); cfg = ad_read(&sc->sc_ad1848, SP_INTERFACE_CONFIG); ad_write(&sc->sc_ad1848, SP_INTERFACE_CONFIG, (cfg | PLAYBACK_ENABLE)); } else { DPRINTF(("trigger_output: already: csr=%s\n", bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)))); } /* load next block if we can */ csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); if (csr & APC_PD) { cs4231_transfer_advance(t, &dmaaddr, &dmasize); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnva, dmaaddr); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnc, dmasize); DPRINTF(("trigger_output: 2nd: %x %d, %x %d\n", bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapc), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnc))); } return (0); } static int cs4231_sbus_halt_output(addr) void *addr; { struct cs4231_sbus_softc *sbsc = addr; struct cs4231_softc *sc = &sbsc->sc_cs4231; volatile struct apc_dma *dma = NULL; u_int32_t csr; int cfg; #ifdef AUDIO_DEBUG char bits[128]; #endif sc->sc_playback.t_active = 0; csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); DPRINTF(("halt_output: csr=%s\n", bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)))); csr &= ~APC_INTR_MASK; /* do not clear interrupts accidentally */ csr |= APC_PPAUSE; /* pause playback (let current complete) */ bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr, csr); /* let the curernt transfer complete */ if (csr & PDMA_GO) do { csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); DPRINTF(("halt_output: csr=%s\n", bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)))); } while ((csr & APC_PM) == 0); cfg = ad_read(&sc->sc_ad1848, SP_INTERFACE_CONFIG); ad_write(&sc->sc_ad1848, SP_INTERFACE_CONFIG,(cfg & ~PLAYBACK_ENABLE)); return (0); } /* NB: we don't enable APC_CMIE and won't use APC_CM */ static int cs4231_sbus_trigger_input(addr, start, end, blksize, intr, arg, param) void *addr; void *start, *end; int blksize; void (*intr)(void *); void *arg; struct audio_params *param; { struct cs4231_sbus_softc *sbsc = addr; struct cs4231_softc *sc = &sbsc->sc_cs4231; struct cs_transfer *t = &sc->sc_capture; volatile struct apc_dma *dma = NULL; u_int32_t csr; bus_addr_t dmaaddr; bus_size_t dmasize; int ret; #ifdef AUDIO_DEBUG char bits[128]; #endif ret = cs4231_transfer_init(sc, t, &dmaaddr, &dmasize, start, end, blksize, intr, arg); if (ret != 0) return (ret); csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); DPRINTF(("trigger_input: csr=%s\n", bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)))); DPRINTF(("trigger_input: was: %x %d, %x %d\n", bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacc), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnc))); /* supply first block */ bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnva, dmaaddr); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnc, dmasize); DPRINTF(("trigger_input: 1st: %x %d, %x %d\n", bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacc), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnc))); csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); if ((csr & CDMA_GO) == 0 || (csr & APC_CPAUSE) != 0) { int cfg; csr &= ~(APC_CPAUSE | APC_CMIE | APC_INTR_MASK); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr, csr); csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); csr &= ~APC_INTR_MASK; csr |= APC_ENABLE | APC_CIE | CDMA_GO; bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr, csr); ad_write(&sc->sc_ad1848, CS_LOWER_REC_CNT, 0xff); ad_write(&sc->sc_ad1848, CS_UPPER_REC_CNT, 0xff); cfg = ad_read(&sc->sc_ad1848, SP_INTERFACE_CONFIG); ad_write(&sc->sc_ad1848, SP_INTERFACE_CONFIG, (cfg | CAPTURE_ENABLE)); } else { DPRINTF(("trigger_input: already: csr=%s\n", bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)))); } /* supply next block if we can */ csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); if (csr & APC_CD) { cs4231_transfer_advance(t, &dmaaddr, &dmasize); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnva, dmaaddr); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnc, dmasize); DPRINTF(("trigger_input: 2nd: %x %d, %x %d\n", bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacc), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnva), bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnc))); } return (0); } static int cs4231_sbus_halt_input(addr) void *addr; { struct cs4231_sbus_softc *sbsc = addr; struct cs4231_softc *sc = &sbsc->sc_cs4231; volatile struct apc_dma *dma = NULL; u_int32_t csr; int cfg; #ifdef AUDIO_DEBUG char bits[128]; #endif sc->sc_capture.t_active = 0; csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); DPRINTF(("halt_input: csr=%s\n", bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)))); csr &= ~APC_INTR_MASK; /* do not clear interrupts accidentally */ csr |= APC_CPAUSE; bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr, csr); /* let the curernt transfer complete */ if (csr & CDMA_GO) do { csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); DPRINTF(("halt_input: csr=%s\n", bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)))); } while ((csr & APC_CM) == 0); cfg = ad_read(&sc->sc_ad1848, SP_INTERFACE_CONFIG); ad_write(&sc->sc_ad1848, SP_INTERFACE_CONFIG, (cfg & ~CAPTURE_ENABLE)); return (0); } static int cs4231_sbus_intr(arg) void *arg; { struct cs4231_sbus_softc *sbsc = arg; struct cs4231_softc *sc = &sbsc->sc_cs4231; volatile struct apc_dma *dma = NULL; u_int32_t csr; int status; bus_addr_t dmaaddr; bus_size_t dmasize; int served; #if defined(AUDIO_DEBUG) || defined(DIAGNOSTIC) char bits[128]; #endif csr = bus_space_read_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr); if ((csr & APC_INTR_MASK) == 0) /* any interrupt pedning? */ return (0); /* write back DMA status to clear interrupt */ bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacsr, csr); ++sc->sc_intrcnt.ev_count; served = 0; #ifdef AUDIO_DEBUG if (cs4231_sbus_debug > 1) cs4231_sbus_regdump("audiointr", sbsc); #endif status = ADREAD(&sc->sc_ad1848, AD1848_STATUS); DPRINTF(("%s: status: %s\n", sc->sc_ad1848.sc_dev.dv_xname, bitmask_snprintf(status, AD_R2_BITS, bits, sizeof(bits)))); if (status & INTERRUPT_STATUS) { #ifdef AUDIO_DEBUG int reason; reason = ad_read(&sc->sc_ad1848, CS_IRQ_STATUS); DPRINTF(("%s: i24: %s\n", sc->sc_ad1848.sc_dev.dv_xname, bitmask_snprintf(reason, CS_I24_BITS, bits, sizeof(bits)))); #endif /* clear ad1848 interrupt */ ADWRITE(&sc->sc_ad1848, AD1848_STATUS, 0); } if (csr & APC_CI) { if (csr & APC_CD) { /* can supply new block */ struct cs_transfer *t = &sc->sc_capture; cs4231_transfer_advance(t, &dmaaddr, &dmasize); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnva, dmaaddr); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmacnc, dmasize); if (t->t_intr != NULL) (*t->t_intr)(t->t_arg); ++t->t_intrcnt.ev_count; served = 1; } } if (csr & APC_PMI) { if (!sc->sc_playback.t_active) served = 1; /* draining in halt_output() */ } if (csr & APC_PI) { if (csr & APC_PD) { /* can load new block */ struct cs_transfer *t = &sc->sc_playback; if (t->t_active) { cs4231_transfer_advance(t, &dmaaddr, &dmasize); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnva, dmaaddr); bus_space_write_4(sbsc->sc_bt, sbsc->sc_bh, (vaddr_t)&dma->dmapnc, dmasize); } if (t->t_intr != NULL) (*t->t_intr)(t->t_arg); ++t->t_intrcnt.ev_count; served = 1; } } /* got an interrupt we don't know how to handle */ if (!served) { #ifdef DIAGNOSTIC printf("%s: unhandled csr=%s\n", sc->sc_ad1848.sc_dev.dv_xname, bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits))); #endif /* evcnt? */ } return (1); } #endif /* NAUDIO > 0 */