/* $OpenBSD: fms.c,v 1.25 2013/11/15 16:46:27 brad Exp $ */ /* $NetBSD: fms.c,v 1.5.4.1 2000/06/30 16:27:50 simonb Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Witold J. Wnuk. * * 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. * * 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. */ /* * Forte Media FM801 Audio Device Driver */ #include "radio.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if 0 #include #endif #include #include struct fms_dma { struct fms_dma *next; caddr_t addr; size_t size; bus_dmamap_t map; bus_dma_segment_t seg; }; int fms_match(struct device *, void *, void *); void fms_attach(struct device *, struct device *, void *); int fms_intr(void *); int fms_open(void *, int); void fms_close(void *); int fms_query_encoding(void *, struct audio_encoding *); int fms_set_params(void *, int, int, struct audio_params *, struct audio_params *); void fms_get_default_params(void *, int, struct audio_params *); int fms_round_blocksize(void *, int); int fms_halt_output(void *); int fms_halt_input(void *); int fms_getdev(void *, struct audio_device *); int fms_set_port(void *, mixer_ctrl_t *); int fms_get_port(void *, mixer_ctrl_t *); int fms_query_devinfo(void *, mixer_devinfo_t *); void *fms_malloc(void *, int, size_t, int, int); void fms_free(void *, void *, int); paddr_t fms_mappage(void *, void *, off_t, int); int fms_get_props(void *); int fms_trigger_output(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); int fms_trigger_input(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); struct cfdriver fms_cd = { NULL, "fms", DV_DULL }; struct cfattach fms_ca = { sizeof (struct fms_softc), fms_match, fms_attach }; struct audio_device fms_device = { "Forte Media 801", "1.0", "fms" }; struct audio_hw_if fms_hw_if = { fms_open, fms_close, NULL, fms_query_encoding, fms_set_params, fms_round_blocksize, NULL, NULL, NULL, NULL, NULL, fms_halt_output, fms_halt_input, NULL, fms_getdev, NULL, fms_set_port, fms_get_port, fms_query_devinfo, fms_malloc, fms_free, NULL, fms_mappage, fms_get_props, fms_trigger_output, fms_trigger_input, fms_get_default_params }; int fms_attach_codec(void *, struct ac97_codec_if *); int fms_read_codec(void *, u_int8_t, u_int16_t *); int fms_write_codec(void *, u_int8_t, u_int16_t); void fms_reset_codec(void *); int fms_allocmem(struct fms_softc *, size_t, size_t, struct fms_dma *); int fms_freemem(struct fms_softc *, struct fms_dma *); int fms_match(struct device *parent, void *match, void *aux) { struct pci_attach_args *pa = (struct pci_attach_args *) aux; if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_FORTEMEDIA && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_FORTEMEDIA_FM801) return (1); return (0); } void fms_attach(struct device *parent, struct device *self, void *aux) { struct pci_attach_args *pa = aux; struct fms_softc *sc = (struct fms_softc *) self; struct audio_attach_args aa; pci_chipset_tag_t pc = pa->pa_pc; pcitag_t pt = pa->pa_tag; pci_intr_handle_t ih; bus_size_t iosize; const char *intrstr; u_int16_t k1; int i; if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot, &sc->sc_ioh, NULL, &iosize, 0)) { printf(": can't map i/o space\n"); return; } if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, 0x30, 2, &sc->sc_mpu_ioh)) { printf(": can't get mpu subregion handle\n"); bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize); return; } if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, 0x68, 4, &sc->sc_opl_ioh)) { printf(": can't get opl subregion handle\n"); bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize); return; } if (pci_intr_map(pa, &ih)) { printf(": couldn't map interrupt\n"); bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize); return; } intrstr = pci_intr_string(pc, ih); sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO | IPL_MPSAFE, fms_intr, sc, sc->sc_dev.dv_xname); if (sc->sc_ih == NULL) { printf(": couldn't establish interrupt"); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize); return; } printf(": %s\n", intrstr); sc->sc_dmat = pa->pa_dmat; /* Disable legacy audio (SBPro compatibility) */ pci_conf_write(pc, pt, 0x40, 0); /* Reset codec and AC'97 */ bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0020); delay(2); /* > 1us according to AC'97 documentation */ bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0000); delay(1); /* > 168.2ns according to AC'97 documentation */ /* Set up volume */ bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PCM_VOLUME, 0x0808); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_FM_VOLUME, 0x0808); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_I2S_VOLUME, 0x0808); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_RECORD_SOURCE, 0x0000); /* Unmask playback, record and mpu interrupts, mask the rest */ k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_INTMASK); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTMASK, (k1 & ~(FM_INTMASK_PLAY | FM_INTMASK_REC | FM_INTMASK_MPU)) | FM_INTMASK_VOL); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS, FM_INTSTATUS_PLAY | FM_INTSTATUS_REC | FM_INTSTATUS_MPU | FM_INTSTATUS_VOL); #if NRADIO > 0 fmsradio_attach(sc); #endif /* NRADIO > 0 */ sc->host_if.arg = sc; sc->host_if.attach = fms_attach_codec; sc->host_if.read = fms_read_codec; sc->host_if.write = fms_write_codec; sc->host_if.reset = fms_reset_codec; if (ac97_attach(&sc->host_if) != 0) return; /* Turn mute off */ for (i = 0; i < 3; i++) { static struct { char *class, *device; } d[] = { { AudioCoutputs, AudioNmaster }, { AudioCinputs, AudioNdac }, { AudioCrecord, AudioNvolume } }; struct mixer_ctrl ctl; 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); fms_set_port(sc, &ctl); } audio_attach_mi(&fms_hw_if, sc, &sc->sc_dev); aa.type = AUDIODEV_TYPE_OPL; aa.hwif = NULL; aa.hdl = NULL; config_found(&sc->sc_dev, &aa, audioprint); aa.type = AUDIODEV_TYPE_MPU; aa.hwif = NULL; aa.hdl = NULL; sc->sc_mpu_dev = config_found(&sc->sc_dev, &aa, audioprint); } /* * Each AC-link frame takes 20.8us, data should be ready in next frame, * we allow more than two. */ #define TIMO 50 int fms_read_codec(void *addr, u_int8_t reg, u_int16_t *val) { struct fms_softc *sc = addr; int i; /* Poll until codec is ready */ for (i = 0; i < TIMO && bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD) & FM_CODEC_CMD_BUSY; i++) delay(1); if (i >= TIMO) { printf("fms: codec busy\n"); return 1; } /* Write register index, read access */ bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD, reg | FM_CODEC_CMD_READ); /* Poll until we have valid data */ for (i = 0; i < TIMO && !(bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD) & FM_CODEC_CMD_VALID); i++) delay(1); if (i >= TIMO) { printf("fms: no data from codec\n"); return 1; } /* Read data */ *val = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_DATA); return 0; } int fms_write_codec(void *addr, u_int8_t reg, u_int16_t val) { struct fms_softc *sc = addr; int i; /* Poll until codec is ready */ for (i = 0; i < TIMO && bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD) & FM_CODEC_CMD_BUSY; i++) delay(1); if (i >= TIMO) { printf("fms: codec busy\n"); return 1; } /* Write data */ bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_DATA, val); /* Write index register, write access */ bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD, reg); return 0; } #undef TIMO int fms_attach_codec(void *addr, struct ac97_codec_if *cif) { struct fms_softc *sc = addr; sc->codec_if = cif; return 0; } /* Cold Reset */ void fms_reset_codec(void *addr) { struct fms_softc *sc = addr; bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0020); delay(2); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0000); delay(1); } int fms_intr(void *arg) { struct fms_softc *sc = arg; u_int16_t istat; mtx_enter(&audio_lock); istat = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS); if (istat & FM_INTSTATUS_PLAY) { if ((sc->sc_play_nextblk += sc->sc_play_blksize) >= sc->sc_play_end) sc->sc_play_nextblk = sc->sc_play_start; bus_space_write_4(sc->sc_iot, sc->sc_ioh, sc->sc_play_flip++ & 1 ? FM_PLAY_DMABUF2 : FM_PLAY_DMABUF1, sc->sc_play_nextblk); if (sc->sc_pintr) sc->sc_pintr(sc->sc_parg); else printf("unexpected play intr\n"); } if (istat & FM_INTSTATUS_REC) { if ((sc->sc_rec_nextblk += sc->sc_rec_blksize) >= sc->sc_rec_end) sc->sc_rec_nextblk = sc->sc_rec_start; bus_space_write_4(sc->sc_iot, sc->sc_ioh, sc->sc_rec_flip++ & 1 ? FM_REC_DMABUF2 : FM_REC_DMABUF1, sc->sc_rec_nextblk); if (sc->sc_rintr) sc->sc_rintr(sc->sc_rarg); else printf("unexpected rec intr\n"); } #if 0 if (istat & FM_INTSTATUS_MPU) mpu_intr(sc->sc_mpu_dev); #endif bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS, istat & (FM_INTSTATUS_PLAY | FM_INTSTATUS_REC)); mtx_leave(&audio_lock); return 1; } int fms_open(void *addr, int flags) { /* UNUSED struct fms_softc *sc = addr;*/ return 0; } void fms_close(void *addr) { /* UNUSED struct fms_softc *sc = addr;*/ } int fms_query_encoding(void *addr, struct audio_encoding *fp) { switch (fp->index) { case 0: strlcpy(fp->name, AudioEmulaw, sizeof fp->name); fp->encoding = AUDIO_ENCODING_ULAW; fp->precision = 8; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; break; case 1: strlcpy(fp->name, AudioEslinear_le, sizeof fp->name); fp->encoding = AUDIO_ENCODING_SLINEAR_LE; fp->precision = 16; fp->flags = 0; break; case 2: strlcpy(fp->name, AudioEulinear, sizeof fp->name); fp->encoding = AUDIO_ENCODING_ULINEAR; fp->precision = 8; fp->flags = 0; break; case 3: strlcpy(fp->name, AudioEalaw, sizeof fp->name); fp->encoding = AUDIO_ENCODING_ALAW; fp->precision = 8; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; break; case 4: strlcpy(fp->name, AudioEulinear_le, sizeof fp->name); fp->encoding = AUDIO_ENCODING_ULINEAR_LE; fp->precision = 16; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; break; case 5: strlcpy(fp->name, AudioEslinear, sizeof fp->name); fp->encoding = AUDIO_ENCODING_SLINEAR; fp->precision = 8; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; break; case 6: strlcpy(fp->name, AudioEulinear_be, sizeof fp->name); fp->encoding = AUDIO_ENCODING_ULINEAR_BE; fp->precision = 16; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; break; case 7: strlcpy(fp->name, AudioEslinear_be, sizeof fp->name); fp->encoding = AUDIO_ENCODING_SLINEAR_BE; fp->precision = 16; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; break; default: return EINVAL; } fp->bps = AUDIO_BPS(fp->precision); fp->msb = 1; return 0; } void fms_get_default_params(void *addr, int mode, struct audio_params *params) { ac97_get_default_params(params); } /* * Range below -limit- is set to -rate- * What a pity FM801 does not have 24000 * 24000 -> 22050 sounds rather poor */ struct { int limit; int rate; } fms_rates[11] = { { 6600, 5500 }, { 8750, 8000 }, { 10250, 9600 }, { 13200, 11025 }, { 17500, 16000 }, { 20500, 19200 }, { 26500, 22050 }, { 35000, 32000 }, { 41000, 38400 }, { 46000, 44100 }, { 48000, 48000 }, /* anything above -> 48000 */ }; int fms_set_params(void *addr, int setmode, int usemode, struct audio_params *play, struct audio_params *rec) { struct fms_softc *sc = addr; int i; if (setmode & AUMODE_PLAY) { play->factor = 1; play->sw_code = 0; switch(play->encoding) { case AUDIO_ENCODING_ULAW: play->factor = 2; play->sw_code = mulaw_to_slinear16_le; break; case AUDIO_ENCODING_SLINEAR_LE: if (play->precision == 8) play->sw_code = change_sign8; break; case AUDIO_ENCODING_ULINEAR_LE: if (play->precision == 16) play->sw_code = change_sign16_le; break; case AUDIO_ENCODING_ALAW: play->factor = 2; play->sw_code = alaw_to_slinear16_le; break; case AUDIO_ENCODING_SLINEAR_BE: if (play->precision == 16) play->sw_code = swap_bytes; else play->sw_code = change_sign8; break; case AUDIO_ENCODING_ULINEAR_BE: if (play->precision == 16) play->sw_code = change_sign16_swap_bytes_le; break; default: return EINVAL; } play->bps = AUDIO_BPS(play->precision); play->msb = 1; for (i = 0; i < 10 && play->sample_rate > fms_rates[i].limit; i++) ; play->sample_rate = fms_rates[i].rate; sc->sc_play_reg = (play->channels == 2 ? FM_PLAY_STEREO : 0) | (play->precision * play->factor == 16 ? FM_PLAY_16BIT : 0) | (i << 8); } if (setmode & AUMODE_RECORD) { rec->factor = 1; rec->sw_code = 0; switch(rec->encoding) { case AUDIO_ENCODING_ULAW: rec->sw_code = ulinear8_to_mulaw; break; case AUDIO_ENCODING_SLINEAR_LE: if (rec->precision == 8) rec->sw_code = change_sign8; break; case AUDIO_ENCODING_ULINEAR_LE: if (rec->precision == 16) rec->sw_code = change_sign16_le; break; case AUDIO_ENCODING_ALAW: rec->sw_code = ulinear8_to_alaw; break; case AUDIO_ENCODING_SLINEAR_BE: if (rec->precision == 16) rec->sw_code = swap_bytes; else rec->sw_code = change_sign8; break; case AUDIO_ENCODING_ULINEAR_BE: if (rec->precision == 16) rec->sw_code = swap_bytes_change_sign16_le; break; default: return EINVAL; } rec->bps = AUDIO_BPS(rec->precision); rec->msb = 1; for (i = 0; i < 10 && rec->sample_rate > fms_rates[i].limit; i++) ; rec->sample_rate = fms_rates[i].rate; sc->sc_rec_reg = (rec->channels == 2 ? FM_REC_STEREO : 0) | (rec->precision * rec->factor == 16 ? FM_REC_16BIT : 0) | (i << 8); } return 0; } int fms_round_blocksize(void *addr, int blk) { return (blk + 0xf) & ~0xf; } int fms_halt_output(void *addr) { struct fms_softc *sc = addr; u_int16_t k1; mtx_enter(&audio_lock); k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL, (k1 & ~(FM_PLAY_STOPNOW | FM_PLAY_START)) | FM_PLAY_BUF1_LAST | FM_PLAY_BUF2_LAST); mtx_leave(&audio_lock); return 0; } int fms_halt_input(void *addr) { struct fms_softc *sc = addr; u_int16_t k1; mtx_enter(&audio_lock); k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL, (k1 & ~(FM_REC_STOPNOW | FM_REC_START)) | FM_REC_BUF1_LAST | FM_REC_BUF2_LAST); mtx_leave(&audio_lock); return 0; } int fms_getdev(void *addr, struct audio_device *retp) { *retp = fms_device; return 0; } int fms_set_port(void *addr, mixer_ctrl_t *cp) { struct fms_softc *sc = addr; return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp)); } int fms_get_port(void *addr, mixer_ctrl_t *cp) { struct fms_softc *sc = addr; return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp)); } void * fms_malloc(void *addr, int direction, size_t size, int pool, int flags) { struct fms_softc *sc = addr; struct fms_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 fms_free(void *addr, void *ptr, int pool) { struct fms_softc *sc = addr; struct fms_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("fms_free: trying to free unallocated memory"); } paddr_t fms_mappage(void *addr, void *mem, off_t off, int prot) { struct fms_softc *sc = addr; struct fms_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 fms_get_props(void *addr) { return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; } int fms_query_devinfo(void *addr, mixer_devinfo_t *dip) { struct fms_softc *sc = addr; return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip)); } int fms_trigger_output(void *addr, void *start, void *end, int blksize, void (*intr)(void *), void *arg, struct audio_params *param) { struct fms_softc *sc = addr; struct fms_dma *p; sc->sc_pintr = intr; sc->sc_parg = arg; for (p = sc->sc_dmas; p && p->addr != start; p = p->next) ; if (!p) panic("fms_trigger_output: request with bad start " "address (%p)", start); sc->sc_play_start = p->map->dm_segs[0].ds_addr; sc->sc_play_end = sc->sc_play_start + ((char *)end - (char *)start); sc->sc_play_blksize = blksize; sc->sc_play_nextblk = sc->sc_play_start + sc->sc_play_blksize; sc->sc_play_flip = 0; mtx_enter(&audio_lock); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMALEN, blksize - 1); bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMABUF1, sc->sc_play_start); bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMABUF2, sc->sc_play_nextblk); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL, FM_PLAY_START | FM_PLAY_STOPNOW | sc->sc_play_reg); mtx_leave(&audio_lock); return 0; } int fms_trigger_input(void *addr, void *start, void *end, int blksize, void (*intr)(void *), void *arg, struct audio_params *param) { struct fms_softc *sc = addr; struct fms_dma *p; sc->sc_rintr = intr; sc->sc_rarg = arg; for (p = sc->sc_dmas; p && p->addr != start; p = p->next) ; if (!p) panic("fms_trigger_input: request with bad start " "address (%p)", start); sc->sc_rec_start = p->map->dm_segs[0].ds_addr; sc->sc_rec_end = sc->sc_rec_start + ((char *)end - (char *)start); sc->sc_rec_blksize = blksize; sc->sc_rec_nextblk = sc->sc_rec_start + sc->sc_rec_blksize; sc->sc_rec_flip = 0; mtx_enter(&audio_lock); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_DMALEN, blksize - 1); bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_REC_DMABUF1, sc->sc_rec_start); bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_REC_DMABUF2, sc->sc_rec_nextblk); bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL, FM_REC_START | FM_REC_STOPNOW | sc->sc_rec_reg); mtx_leave(&audio_lock); return 0; }