/* $NetBSD: auvia.c,v 1.3 2000/05/15 01:27:46 thorpej Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Tyler C. Sarna * * 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. */ /* * VIA Technologies VT82C686A Southbridge Audio Driver * * Documentation links: * * ftp://ftp.alsa-project.org/pub/manuals/via/686a.pdf * ftp://ftp.alsa-project.org/pub/manuals/general/ac97r21.pdf * ftp://ftp.alsa-project.org/pub/manuals/ad/AD1881_0.pdf (example AC'97 codec) */ #include #include #include #include #include #include #include #include #include #include #include #include struct auvia_dma { struct auvia_dma *next; caddr_t addr; size_t size; bus_dmamap_t map; bus_dma_segment_t seg; }; struct auvia_dma_op { u_int32_t ptr; u_int32_t flags; #define AUVIA_DMAOP_EOL 0x80000000 #define AUVIA_DMAOP_FLAG 0x40000000 #define AUVIA_DMAOP_STOP 0x20000000 #define AUVIA_DMAOP_COUNT(x) ((x)&0x00FFFFFF) }; int auvia_match(struct device *, struct cfdata *, void *); void auvia_attach(struct device *, struct device *, void *); int auvia_open(void *, int); void auvia_close(void *); int auvia_query_encoding(void *addr, struct audio_encoding *fp); int auvia_set_params(void *, int, int, struct audio_params *, struct audio_params *); int auvia_round_blocksize(void *, int); int auvia_halt_output(void *); int auvia_halt_input(void *); int auvia_getdev(void *, struct audio_device *); int auvia_set_port(void *, mixer_ctrl_t *); int auvia_get_port(void *, mixer_ctrl_t *); int auvia_query_devinfo(void *, mixer_devinfo_t *); void * auvia_malloc(void *, int, size_t, int, int); void auvia_free(void *, void *, int); size_t auvia_round_buffersize(void *, int, size_t); int auvia_mappage(void *, void *, int, int); int auvia_get_props(void *); int auvia_build_dma_ops(struct auvia_softc *, struct auvia_softc_chan *, struct auvia_dma *, void *, void *, int); int auvia_trigger_output(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); int auvia_trigger_input(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); int auvia_intr __P((void *)); struct cfattach auvia_ca = { sizeof (struct auvia_softc), auvia_match, auvia_attach }; #define AUVIA_PCICONF_JUNK 0x40 #define AUVIA_PCICONF_ENABLES 0x00FF0000 /* reg 42 mask */ #define AUVIA_PCICONF_ACLINKENAB 0x00008000 /* ac link enab */ #define AUVIA_PCICONF_ACNOTRST 0x00004000 /* ~(ac reset) */ #define AUVIA_PCICONF_ACSYNC 0x00002000 /* ac sync */ #define AUVIA_PCICONF_ACVSR 0x00000800 /* var. samp. rate */ #define AUVIA_PCICONF_ACSGD 0x00000400 /* SGD enab */ #define AUVIA_PCICONF_ACFM 0x00000200 /* FM enab */ #define AUVIA_PCICONF_ACSB 0x00000100 /* SB enab */ #define AUVIA_PLAY_STAT 0x00 #define AUVIA_RECORD_STAT 0x10 #define AUVIA_RPSTAT_INTR 0x03 #define AUVIA_PLAY_CONTROL 0x01 #define AUVIA_RECORD_CONTROL 0x11 #define AUVIA_RPCTRL_START 0x80 #define AUVIA_RPCTRL_TERMINATE 0x40 #define AUVIA_PLAY_MODE 0x02 #define AUVIA_RECORD_MODE 0x12 #define AUVIA_RPMODE_INTR_FLAG 0x01 #define AUVIA_RPMODE_INTR_EOL 0x02 #define AUVIA_RPMODE_STEREO 0x10 #define AUVIA_RPMODE_16BIT 0x20 #define AUVIA_RPMODE_AUTOSTART 0x80 #define AUVIA_PLAY_DMAOPS_BASE 0x04 #define AUVIA_RECORD_DMAOPS_BASE 0x14 #define AUVIA_CODEC_CTL 0x80 #define AUVIA_CODEC_READ 0x00800000 #define AUVIA_CODEC_BUSY 0x01000000 #define AUVIA_CODEC_PRIVALID 0x02000000 #define AUVIA_CODEC_INDEX(x) ((x)<<16) #define TIMEOUT 50 #define AC97_REG_EXT_AUDIO_ID 0x28 #define AC97_CODEC_DOES_VRA 0x0001 #define AC97_REG_EXT_AUDIO_STAT 0x2A #define AC97_ENAB_VRA 0x0001 #define AC97_ENAB_MICVRA 0x0004 #define AC97_REG_EXT_DAC_RATE 0x2C #define AC97_REG_EXT_ADC_RATE 0x32 struct audio_hw_if auvia_hw_if = { auvia_open, auvia_close, NULL, /* drain */ auvia_query_encoding, auvia_set_params, auvia_round_blocksize, NULL, /* commit_settings */ NULL, /* init_output */ NULL, /* init_input */ NULL, /* start_output */ NULL, /* start_input */ auvia_halt_output, auvia_halt_input, NULL, /* speaker_ctl */ auvia_getdev, NULL, /* setfd */ auvia_set_port, auvia_get_port, auvia_query_devinfo, auvia_malloc, auvia_free, auvia_round_buffersize, auvia_mappage, auvia_get_props, auvia_trigger_output, auvia_trigger_input, }; int auvia_attach_codec(void *, struct ac97_codec_if *); int auvia_write_codec(void *, u_int8_t, u_int16_t); int auvia_read_codec(void *, u_int8_t, u_int16_t *); void auvia_reset_codec(void *); int auvia_waitready_codec(struct auvia_softc *sc); int auvia_waitvalid_codec(struct auvia_softc *sc); int auvia_match(struct device *parent, struct cfdata *match, void *aux) { struct pci_attach_args *pa = (struct pci_attach_args *) aux; if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_VIATECH) return 0; if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_VIATECH_VT82C686A_AC97) return 0; return 1; } void auvia_attach(struct device *parent, struct device *self, void *aux) { struct pci_attach_args *pa = aux; struct auvia_softc *sc = (struct auvia_softc *) self; const char *intrstr = NULL; struct mixer_ctrl ctl; pci_chipset_tag_t pc = pa->pa_pc; pcitag_t pt = pa->pa_tag; pci_intr_handle_t ih; pcireg_t pr; u_int16_t v; int r, i; r = PCI_REVISION(pa->pa_class); sc->sc_revision[1] = '\0'; if (r == 0x20) { sc->sc_revision[0] = 'H'; } else if ((r >= 0x10) && (r <= 0x14)) { sc->sc_revision[0] = 'A' + (r - 0x10); } else { sprintf(sc->sc_revision, "0x%02X", r); } printf(": VIA VT82C686A AC'97 Audio (rev %s)\n", sc->sc_revision); if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, pa->pa_intrline, &ih)) { printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); return; } intrstr = pci_intr_string(pc, ih); sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, auvia_intr, sc); if (sc->sc_ih == NULL) { printf("%s: couldn't establish interrupt",sc->sc_dev.dv_xname); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } sc->sc_dmat = pa->pa_dmat; sc->sc_pc = pc; sc->sc_pt = pt; printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot, &sc->sc_ioh, &sc->sc_ioaddr, &sc->sc_iosize)) { printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); return; } /* disable SBPro compat & others */ pr = pci_conf_read(pc, pt, AUVIA_PCICONF_JUNK); pr &= ~AUVIA_PCICONF_ENABLES; /* clear compat function enables */ /* XXX what to do about MIDI, FM, joystick? */ pr |= (AUVIA_PCICONF_ACLINKENAB | AUVIA_PCICONF_ACNOTRST | AUVIA_PCICONF_ACVSR | AUVIA_PCICONF_ACSGD); pr &= ~(AUVIA_PCICONF_ACFM | AUVIA_PCICONF_ACSB); pci_conf_write(pc, pt, AUVIA_PCICONF_JUNK, pr); sc->host_if.arg = sc; sc->host_if.attach = auvia_attach_codec; sc->host_if.read = auvia_read_codec; sc->host_if.write = auvia_write_codec; sc->host_if.reset = auvia_reset_codec; if ((r = ac97_attach(&sc->host_if)) != 0) { printf("%s: can't attach codec (error 0x%X)\n", sc->sc_dev.dv_xname, r); return; } if (auvia_read_codec(sc, AC97_REG_EXT_AUDIO_ID, &v) || !(v & AC97_CODEC_DOES_VRA)) { /* XXX */ printf("%s: codec must support AC'97 2.0 Variable Rate Audio\n", sc->sc_dev.dv_xname); return; } else { /* enable VRA */ auvia_write_codec(sc, AC97_REG_EXT_AUDIO_STAT, AC97_ENAB_VRA | AC97_ENAB_MICVRA); } /* disable mutes */ for (i = 0; i < 4; i++) { static struct { char *class, *device; } d[] = { { AudioCoutputs, AudioNmaster}, { AudioCinputs, AudioNdac}, { AudioCinputs, AudioNcd}, { AudioCrecord, AudioNvolume}, }; ctl.type = AUDIO_MIXER_ENUM; ctl.un.ord = 0; ctl.dev = sc->codec_if->vtbl->get_portnum_by_name(sc->codec_if, d[i].class, d[i].device, AudioNmute); auvia_set_port(sc, &ctl); } /* set a reasonable default volume */ ctl.type = AUDIO_MIXER_VALUE; ctl.un.value.num_channels = 2; ctl.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = \ ctl.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = 199; ctl.dev = sc->codec_if->vtbl->get_portnum_by_name(sc->codec_if, AudioCoutputs, AudioNmaster, NULL); auvia_set_port(sc, &ctl); audio_attach_mi(&auvia_hw_if, sc, &sc->sc_dev); } int auvia_attach_codec(void *addr, struct ac97_codec_if *cif) { struct auvia_softc *sc = addr; sc->codec_if = cif; return 0; } void auvia_reset_codec(void *addr) { #ifdef notyet /* XXX seems to make codec become unready... ??? */ struct auvia_softc *sc = addr; pcireg_t r; /* perform a codec cold reset */ r = pci_conf_read(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK); r &= ~AUVIA_PCICONF_ACNOTRST; /* enable RESET (active low) */ pci_conf_write(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK, r); delay(2); r |= AUVIA_PCICONF_ACNOTRST; /* disable RESET (inactive high) */ pci_conf_write(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK, r); delay(200); auvia_waitready_codec(sc); #endif } int auvia_waitready_codec(struct auvia_softc *sc) { int i; /* poll until codec not busy */ for (i = 0; (i < TIMEOUT) && (bus_space_read_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL) & AUVIA_CODEC_BUSY); i++) delay(1); if (i >= TIMEOUT) { printf("%s: codec busy\n", sc->sc_dev.dv_xname); return 1; } return 0; } int auvia_waitvalid_codec(struct auvia_softc *sc) { int i; /* poll until codec valid */ for (i = 0; (i < TIMEOUT) && !(bus_space_read_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL) & AUVIA_CODEC_PRIVALID); i++) delay(1); if (i >= TIMEOUT) { printf("%s: codec invalid\n", sc->sc_dev.dv_xname); return 1; } return 0; } int auvia_write_codec(void *addr, u_int8_t reg, u_int16_t val) { struct auvia_softc *sc = addr; if (auvia_waitready_codec(sc)) return 1; bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL, AUVIA_CODEC_PRIVALID | AUVIA_CODEC_INDEX(reg) | val); return 0; } int auvia_read_codec(void *addr, u_int8_t reg, u_int16_t *val) { struct auvia_softc *sc = addr; if (auvia_waitready_codec(sc)) return 1; bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL, AUVIA_CODEC_PRIVALID | AUVIA_CODEC_READ | AUVIA_CODEC_INDEX(reg)); if (auvia_waitready_codec(sc)) return 1; if (auvia_waitvalid_codec(sc)) return 1; *val = bus_space_read_2(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL); return 0; } int auvia_open(void *addr, int flags) { return 0; } void auvia_close(void *addr) { struct auvia_softc *sc = addr; auvia_halt_output(sc); auvia_halt_input(sc); sc->sc_play.sc_intr = NULL; sc->sc_record.sc_intr = NULL; } int auvia_query_encoding(void *addr, struct audio_encoding *fp) { switch (fp->index) { case 0: strcpy(fp->name, AudioEulinear); fp->encoding = AUDIO_ENCODING_ULINEAR; fp->precision = 8; fp->flags = 0; return (0); case 1: strcpy(fp->name, AudioEmulaw); fp->encoding = AUDIO_ENCODING_ULAW; fp->precision = 8; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; return (0); case 2: strcpy(fp->name, AudioEalaw); fp->encoding = AUDIO_ENCODING_ALAW; fp->precision = 8; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; return (0); case 3: strcpy(fp->name, AudioEslinear); fp->encoding = AUDIO_ENCODING_SLINEAR; fp->precision = 8; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; return (0); case 4: strcpy(fp->name, AudioEslinear_le); fp->encoding = AUDIO_ENCODING_SLINEAR_LE; fp->precision = 16; fp->flags = 0; return (0); case 5: strcpy(fp->name, AudioEulinear_le); fp->encoding = AUDIO_ENCODING_ULINEAR_LE; fp->precision = 16; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; return (0); case 6: strcpy(fp->name, AudioEslinear_be); fp->encoding = AUDIO_ENCODING_SLINEAR_BE; fp->precision = 16; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; return (0); case 7: strcpy(fp->name, AudioEulinear_be); fp->encoding = AUDIO_ENCODING_ULINEAR_BE; fp->precision = 16; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; return (0); default: return (EINVAL); } } int auvia_set_params(void *addr, int setmode, int usemode, struct audio_params *play, struct audio_params *rec) { struct auvia_softc *sc = addr; struct audio_params *p; u_int16_t regval; int reg, mode; /* for mode in (RECORD, PLAY) */ for (mode = AUMODE_RECORD; mode != -1; mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { if ((setmode & mode) == 0) continue; p = mode == AUMODE_PLAY ? play : rec; if (p->sample_rate < 4000 || p->sample_rate > 48000 || (p->precision != 8 && p->precision != 16) || (p->channels != 1 && p->channels != 2)) return (EINVAL); reg = mode == AUMODE_PLAY ? AC97_REG_EXT_DAC_RATE : AC97_REG_EXT_ADC_RATE; auvia_write_codec(sc, reg, (u_int16_t) p->sample_rate); auvia_read_codec(sc, reg, ®val); p->sample_rate = regval; p->factor = 1; p->sw_code = 0; switch (p->encoding) { case AUDIO_ENCODING_SLINEAR_BE: if (p->precision == 16) p->sw_code = swap_bytes; else p->sw_code = change_sign8; break; case AUDIO_ENCODING_SLINEAR_LE: if (p->precision != 16) p->sw_code = change_sign8; break; case AUDIO_ENCODING_ULINEAR_BE: if (p->precision == 16) { if (mode == AUMODE_PLAY) p->sw_code = swap_bytes_change_sign16_le; else p->sw_code = change_sign16_swap_bytes_le; } break; case AUDIO_ENCODING_ULINEAR_LE: if (p->precision == 16) p->sw_code = change_sign16_le; break; case AUDIO_ENCODING_ULAW: if (mode == AUMODE_PLAY) { p->factor = 2; p->sw_code = mulaw_to_slinear16_le; } else p->sw_code = ulinear8_to_mulaw; break; case AUDIO_ENCODING_ALAW: if (mode == AUMODE_PLAY) { p->factor = 2; p->sw_code = alaw_to_slinear16_le; } else p->sw_code = ulinear8_to_alaw; break; default: return (EINVAL); } regval = (p->channels == 2 ? AUVIA_RPMODE_STEREO : 0) | (p->precision * p->factor == 16 ? AUVIA_RPMODE_16BIT : 0) | AUVIA_RPMODE_INTR_FLAG | AUVIA_RPMODE_INTR_EOL | AUVIA_RPMODE_AUTOSTART; if (mode == AUMODE_PLAY) { sc->sc_play.sc_reg = regval; } else { sc->sc_record.sc_reg = regval; } } return 0; } int auvia_round_blocksize(void *addr, int blk) { return (blk & -32); } int auvia_halt_output(void *addr) { struct auvia_softc *sc = addr; bus_space_write_1(sc->sc_iot, sc->sc_ioh, AUVIA_PLAY_CONTROL, AUVIA_RPCTRL_TERMINATE); return 0; } int auvia_halt_input(void *addr) { struct auvia_softc *sc = addr; bus_space_write_1(sc->sc_iot, sc->sc_ioh, AUVIA_RECORD_CONTROL, AUVIA_RPCTRL_TERMINATE); return 0; } int auvia_getdev(void *addr, struct audio_device *retp) { struct auvia_softc *sc = addr; if (retp) { strncpy(retp->name, "VIA VT82C686A", sizeof(retp->name)); strncpy(retp->version, sc->sc_revision, sizeof(retp->version)); strncpy(retp->config, "auvia", sizeof(retp->config)); } return 0; } int auvia_set_port(void *addr, mixer_ctrl_t *cp) { struct auvia_softc *sc = addr; return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp)); } int auvia_get_port(void *addr, mixer_ctrl_t *cp) { struct auvia_softc *sc = addr; return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp)); } int auvia_query_devinfo(void *addr, mixer_devinfo_t *dip) { struct auvia_softc *sc = addr; return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip)); } void * auvia_malloc(void *addr, int direction, size_t size, int pool, int flags) { struct auvia_softc *sc = addr; struct auvia_dma *p; int error; int rseg; p = malloc(sizeof(*p), pool, flags); if (!p) return 0; p->size = size; if ((error = bus_dmamem_alloc(sc->sc_dmat, size, NBPG, 0, &p->seg, 1, &rseg, BUS_DMA_NOWAIT)) != 0) { printf("%s: unable to allocate dma, error = %d\n", sc->sc_dev.dv_xname, error); goto fail_alloc; } if ((error = bus_dmamem_map(sc->sc_dmat, &p->seg, rseg, size, &p->addr, BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) { printf("%s: unable to map dma, error = %d\n", sc->sc_dev.dv_xname, error); goto fail_map; } if ((error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0, BUS_DMA_NOWAIT, &p->map)) != 0) { printf("%s: unable to create dma map, error = %d\n", sc->sc_dev.dv_xname, error); goto fail_create; } if ((error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, size, NULL, BUS_DMA_NOWAIT)) != 0) { printf("%s: unable to load dma map, error = %d\n", sc->sc_dev.dv_xname, error); goto fail_load; } p->next = sc->sc_dmas; sc->sc_dmas = p; return p->addr; fail_load: bus_dmamap_destroy(sc->sc_dmat, p->map); fail_create: bus_dmamem_unmap(sc->sc_dmat, p->addr, size); fail_map: bus_dmamem_free(sc->sc_dmat, &p->seg, 1); fail_alloc: free(p, pool); return 0; } void auvia_free(void *addr, void *ptr, int pool) { struct auvia_softc *sc = addr; struct auvia_dma **pp, *p; for (pp = &(sc->sc_dmas); (p = *pp) != NULL; pp = &p->next) if (p->addr == ptr) { bus_dmamap_unload(sc->sc_dmat, p->map); bus_dmamap_destroy(sc->sc_dmat, p->map); bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size); bus_dmamem_free(sc->sc_dmat, &p->seg, 1); *pp = p->next; free(p, pool); return; } panic("auvia_free: trying to free unallocated memory"); } size_t auvia_round_buffersize(void *addr, int direction, size_t size) { return size; } int auvia_mappage(void *addr, void *mem, int off, int prot) { struct auvia_softc *sc = addr; struct auvia_dma *p; if (off < 0) return -1; for (p = sc->sc_dmas; p && p->addr != mem; p = p->next) ; if (!p) return -1; return bus_dmamem_mmap(sc->sc_dmat, &p->seg, 1, off, prot, BUS_DMA_WAITOK); } int auvia_get_props(void *addr) { return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; } int auvia_build_dma_ops(struct auvia_softc *sc, struct auvia_softc_chan *ch, struct auvia_dma *p, void *start, void *end, int blksize) { struct auvia_dma_op *op; struct auvia_dma *dp; bus_addr_t s, e; size_t l; int segs; s = p->map->dm_segs[0].ds_addr; l = ((char *)end - (char *)start); e = s + l; segs = (l + blksize - 1) / blksize; if (segs > (ch->sc_dma_op_count)) { /* if old list was too small, free it */ if (ch->sc_dma_ops) { auvia_free(sc, ch->sc_dma_ops, M_DEVBUF); } ch->sc_dma_ops = auvia_malloc(sc, 0, sizeof(struct auvia_dma_op) * segs, M_DEVBUF, M_WAITOK); if (ch->sc_dma_ops == NULL) { printf("%s: couldn't build dmaops\n", sc->sc_dev.dv_xname); return 1; } for (dp = sc->sc_dmas; dp && dp->addr != (void *)(ch->sc_dma_ops); dp = dp->next) ; if (!dp) panic("%s: build_dma_ops: where'd my memory go??? " "address (%p)\n", sc->sc_dev.dv_xname, ch->sc_dma_ops); ch->sc_dma_op_count = segs; ch->sc_dma_ops_dma = dp; } dp = ch->sc_dma_ops_dma; op = ch->sc_dma_ops; while (l) { op->ptr = s; l = l - blksize; if (!l) { /* if last block */ op->flags = AUVIA_DMAOP_EOL | blksize; } else { op->flags = AUVIA_DMAOP_FLAG | blksize; } s += blksize; op++; } return 0; } int auvia_trigger_output(void *addr, void *start, void *end, int blksize, void (*intr)(void *), void *arg, struct audio_params *param) { struct auvia_softc *sc = addr; struct auvia_softc_chan *ch = &(sc->sc_play); struct auvia_dma *p; for (p = sc->sc_dmas; p && p->addr != start; p = p->next) ; if (!p) panic("auvia_trigger_output: request with bad start " "address (%p)\n", start); if (auvia_build_dma_ops(sc, ch, p, start, end, blksize)) { return 1; } ch->sc_intr = intr; ch->sc_arg = arg; bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_PLAY_DMAOPS_BASE, ch->sc_dma_ops_dma->map->dm_segs[0].ds_addr); bus_space_write_1(sc->sc_iot, sc->sc_ioh, AUVIA_PLAY_MODE, ch->sc_reg); bus_space_write_1(sc->sc_iot, sc->sc_ioh, AUVIA_PLAY_CONTROL, AUVIA_RPCTRL_START); return 0; } int auvia_trigger_input(void *addr, void *start, void *end, int blksize, void (*intr)(void *), void *arg, struct audio_params *param) { struct auvia_softc *sc = addr; struct auvia_softc_chan *ch = &(sc->sc_record); struct auvia_dma *p; for (p = sc->sc_dmas; p && p->addr != start; p = p->next) ; if (!p) panic("auvia_trigger_input: request with bad start " "address (%p)\n", start); if (auvia_build_dma_ops(sc, ch, p, start, end, blksize)) { return 1; } ch->sc_intr = intr; ch->sc_arg = arg; bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_RECORD_DMAOPS_BASE, ch->sc_dma_ops_dma->map->dm_segs[0].ds_addr); bus_space_write_1(sc->sc_iot, sc->sc_ioh, AUVIA_RECORD_MODE, ch->sc_reg); bus_space_write_1(sc->sc_iot, sc->sc_ioh, AUVIA_RECORD_CONTROL, AUVIA_RPCTRL_START); return 0; } int auvia_intr(void *arg) { struct auvia_softc *sc = arg; u_int8_t r; r = bus_space_read_1(sc->sc_iot, sc->sc_ioh, AUVIA_RECORD_STAT); if (r & AUVIA_RPSTAT_INTR) { if (sc->sc_record.sc_intr) sc->sc_record.sc_intr(sc->sc_record.sc_arg); /* clear interrupts */ bus_space_write_1(sc->sc_iot, sc->sc_ioh, AUVIA_RECORD_STAT, AUVIA_RPSTAT_INTR); } r = bus_space_read_1(sc->sc_iot, sc->sc_ioh, AUVIA_PLAY_STAT); if (r & AUVIA_RPSTAT_INTR) { if (sc->sc_play.sc_intr) sc->sc_play.sc_intr(sc->sc_play.sc_arg); /* clear interrupts */ bus_space_write_1(sc->sc_iot, sc->sc_ioh, AUVIA_PLAY_STAT, AUVIA_RPSTAT_INTR); } return 1; }