/* $OpenBSD: maestro.c,v 1.15 2002/03/14 03:16:06 millert Exp $ */ /* $FreeBSD: /c/ncvs/src/sys/dev/sound/pci/maestro.c,v 1.3 2000/11/21 12:22:11 julian Exp $ */ /* * FreeBSD's ESS Agogo/Maestro driver * Converted from FreeBSD's pcm to OpenBSD's audio. * Copyright (c) 2000, 2001 David Leonard & Marc Espie * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ /*- * (FreeBSD) Credits: * Copyright (c) 2000 Taku YAMAMOTO * * Part of this code (especially in many magic numbers) was heavily inspired * by the Linux driver originally written by * Alan Cox , modified heavily by * Zach Brown . * * busdma()-ize and buffer size reduction were suggested by * Cameron Grant . * Also he showed me the way to use busdma() suite. * * Internal speaker problems on NEC VersaPro's and Dell Inspiron 7500 * were looked at by * Munehiro Matsuda , * who brought patches based on the Linux driver with some simplification. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef AUDIO_DEBUG #define DPRINTF(x) if (maestrodebug) printf x #define DLPRINTF(i, x) if (maestrodebug & i) printf x int maestrodebug = 0; u_long maestrointr_called; u_long maestrodma_effective; #define MAESTRODEBUG_INTR 1 #define MAESTRODEBUG_TIMER 2 #else #define DPRINTF(x) #define DLPRINTF(i, x) #endif #define MAESTRO_BUFSIZ 0x4000 #define lengthof(array) (sizeof (array) / sizeof (array)[0]) #define STEP_VOLUME 0x22 #define MIDDLE_VOLUME (STEP_VOLUME * 4) typedef struct salloc_pool { struct salloc_zone { SLIST_ENTRY(salloc_zone) link; caddr_t addr; size_t size; } *zones; SLIST_HEAD(salloc_head, salloc_zone) free, used, spare; } *salloc_t; struct maestro_softc; #define MAESTRO_PLAY 1 #define MAESTRO_STEREO 2 #define MAESTRO_8BIT 4 #define MAESTRO_UNSIGNED 8 #define MAESTRO_RUNNING 16 struct maestro_channel { struct maestro_softc *sc; int num; u_int32_t blocksize; u_int16_t mode; u_int32_t speed; u_int32_t dv; u_int16_t start; u_int16_t threshold; u_int16_t end; u_int16_t current; u_int wpwa; void (*intr)(void *); void *intr_arg; }; struct maestro_softc { struct device dev; void *ih; pci_chipset_tag_t pc; pcitag_t pt; #define MAESTRO_FLAG_SETUPGPIO 0x0001 int flags; bus_space_tag_t iot; bus_space_handle_t ioh; bus_dma_tag_t dmat; caddr_t dmabase; bus_addr_t physaddr; size_t dmasize; bus_dmamap_t dmamap; bus_dma_segment_t dmaseg; salloc_t dmapool; struct ac97_codec_if *codec_if; struct ac97_host_if host_if; struct audio_device *sc_audev; void *powerhook; int suspend; struct maestro_channel play; struct maestro_channel record; }; typedef u_int16_t wpreg_t; typedef u_int16_t wcreg_t; salloc_t salloc_new(caddr_t, size_t, int); void salloc_destroy(salloc_t); caddr_t salloc_alloc(salloc_t, size_t); void salloc_free(salloc_t, caddr_t); void salloc_insert(salloc_t, struct salloc_head *, struct salloc_zone *, int); int maestro_match(struct device *, void *, void *); void maestro_attach(struct device *, struct device *, void *); int maestro_intr(void *); int maestro_open(void *, int); void maestro_close(void *); int maestro_query_encoding(void *, struct audio_encoding *); int maestro_set_params(void *, int, int, struct audio_params *, struct audio_params *); int maestro_round_blocksize(void *, int); int maestro_halt_output(void *); int maestro_halt_input(void *); int maestro_getdev(void *, struct audio_device *); int maestro_set_port(void *, mixer_ctrl_t *); int maestro_get_port(void *, mixer_ctrl_t *); int maestro_query_devinfo(void *, mixer_devinfo_t *); void *maestro_malloc(void *, int, size_t, int, int); void maestro_free(void *, void *, int); size_t maestro_round_buffersize(void *, int, size_t); paddr_t maestro_mappage(void *, void *, off_t, int); int maestro_get_props(void *); int maestro_trigger_output(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); int maestro_trigger_input(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); int maestro_attach_codec(void *, struct ac97_codec_if *); int maestro_read_codec(void *, u_int8_t, u_int16_t *); int maestro_write_codec(void *, u_int8_t, u_int16_t); void maestro_reset_codec(void *); void maestro_initcodec(void *); void maestro_set_speed(struct maestro_channel *, u_long *); void maestro_init(struct maestro_softc *); void maestro_power(struct maestro_softc *, int); void maestro_powerhook(int, void *); void maestro_channel_start(struct maestro_channel *); void maestro_channel_stop(struct maestro_channel *); void maestro_channel_advance_dma(struct maestro_channel *); void maestro_channel_suppress_jitter(struct maestro_channel *); int maestro_get_flags(struct pci_attach_args *); void ringbus_setdest(struct maestro_softc *, int, int); wpreg_t wp_reg_read(struct maestro_softc *, int); void wp_reg_write(struct maestro_softc *, int, wpreg_t); wpreg_t wp_apu_read(struct maestro_softc *, int, int); void wp_apu_write(struct maestro_softc *, int, int, wpreg_t); void wp_settimer(struct maestro_softc *, u_int); void wp_starttimer(struct maestro_softc *); void wp_stoptimer(struct maestro_softc *); wcreg_t wc_reg_read(struct maestro_softc *, int); void wc_reg_write(struct maestro_softc *, int, wcreg_t); wcreg_t wc_ctrl_read(struct maestro_softc *, int); void wc_ctrl_write(struct maestro_softc *, int, wcreg_t); u_int maestro_calc_timer_freq(struct maestro_channel *); void maestro_update_timer(struct maestro_softc *); struct cfdriver maestro_cd = { NULL, "maestro", DV_DULL }; struct cfattach maestro_ca = { sizeof (struct maestro_softc), maestro_match, maestro_attach }; struct audio_hw_if maestro_hw_if = { maestro_open, maestro_close, NULL, maestro_query_encoding, maestro_set_params, maestro_round_blocksize, NULL, NULL, NULL, NULL, NULL, maestro_halt_output, maestro_halt_input, NULL, maestro_getdev, NULL, maestro_set_port, maestro_get_port, maestro_query_devinfo, maestro_malloc, maestro_free, maestro_round_buffersize, maestro_mappage, maestro_get_props, maestro_trigger_output, maestro_trigger_input }; struct audio_device maestro_audev = { "ESS Maestro", "", "maestro" }; struct { u_short vendor, product; int flags; } maestro_pcitab[] = { { PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTROII, 0 }, { PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO2E, 0 }, { PCI_VENDOR_PLATFORM, PCI_PRODUCT_PLATFORM_ES1849, 0 }, { PCI_VENDOR_NEC, PCI_PRODUCT_NEC_VERSAMAESTRO, MAESTRO_FLAG_SETUPGPIO }, { PCI_VENDOR_NEC, PCI_PRODUCT_NEC_VERSAPRONXVA26D, MAESTRO_FLAG_SETUPGPIO } }; #define NMAESTRO_PCITAB lengthof(maestro_pcitab) int maestro_get_flags(pa) struct pci_attach_args *pa; { int i; /* Distinguish audio devices from modems with the same manfid */ if (PCI_CLASS(pa->pa_class) != PCI_CLASS_MULTIMEDIA) return (-1); if (PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MULTIMEDIA_AUDIO) return (-1); for (i = 0; i < NMAESTRO_PCITAB; i++) if (PCI_VENDOR(pa->pa_id) == maestro_pcitab[i].vendor && PCI_PRODUCT(pa->pa_id) == maestro_pcitab[i].product) return (maestro_pcitab[i].flags); return (-1); } /* ----------------------------- * Driver interface. */ int maestro_match(parent, match, aux) struct device *parent; void *match; void *aux; { struct pci_attach_args *pa = (struct pci_attach_args *)aux; if (maestro_get_flags(pa) == -1) return (0); else return (1); } void maestro_attach(parent, self, aux) struct device *parent; struct device *self; void *aux; { struct maestro_softc *sc = (struct maestro_softc *)self; struct pci_attach_args *pa = (struct pci_attach_args *)aux; pci_chipset_tag_t pc = pa->pa_pc; char const *intrstr; pci_intr_handle_t ih; int error; pcireg_t data; u_int16_t cdata; int dmastage = 0; int rseg; sc->sc_audev = &maestro_audev; sc->flags = maestro_get_flags(pa); sc->pc = pa->pa_pc; sc->pt = pa->pa_tag; sc->dmat = pa->pa_dmat; /* Map interrupt */ if (pci_intr_map(pa, &ih)) { printf(": couldn't map interrupt\n"); return; } intrstr = pci_intr_string(pc, ih); sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, maestro_intr, sc, sc->dev.dv_xname); if (sc->ih == NULL) { printf(": couldn't establish interrupt"); if (intrstr != NULL) printf(" at %s\n", intrstr); return; } printf(": %s", intrstr); /* Rangers, power up */ maestro_power(sc, PPMI_D0); DELAY(100000); /* Map i/o */ if ((error = pci_mapreg_map(pa, PCI_MAPS, PCI_MAPREG_TYPE_IO, 0, &sc->iot, &sc->ioh, NULL, NULL, 0)) != 0) { printf(", couldn't map i/o space\n"); goto bad; }; /* Enable bus mastering */ data = pci_conf_read(sc->pc, sc->pt, PCI_COMMAND_STATUS_REG); if ((data & PCI_COMMAND_MASTER_ENABLE) == 0) pci_conf_write(sc->pc, sc->pt, PCI_COMMAND_STATUS_REG, data | PCI_COMMAND_MASTER_ENABLE); /* Allocate fixed DMA segment :-( */ sc->dmasize = MAESTRO_BUFSIZ * 16; if ((error = bus_dmamem_alloc(sc->dmat, sc->dmasize, NBPG, 0, &sc->dmaseg, 1, &rseg, BUS_DMA_NOWAIT)) != 0) { printf(", unable to alloc dma, error %d\n", error); goto bad; } dmastage = 1; if ((error = bus_dmamem_map(sc->dmat, &sc->dmaseg, 1, sc->dmasize, &sc->dmabase, BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) { printf(", unable to map dma, error %d\n", error); goto bad; } dmastage = 2; if ((error = bus_dmamap_create(sc->dmat, sc->dmasize, 1, sc->dmasize, 0, BUS_DMA_NOWAIT, &sc->dmamap)) != 0) { printf(", unable to create dma map, error %d\n", error); goto bad; } dmastage = 3; if ((error = bus_dmamap_load(sc->dmat, sc->dmamap, sc->dmabase, sc->dmasize, NULL, BUS_DMA_NOWAIT)) != 0) { printf(", unable to load dma map, error %d\n", error); goto bad; } /* XXX * The first byte of the allocated memory is not usable, * the WP sometimes uses it to store status. */ /* Make DMA memory pool */ if ((sc->dmapool = salloc_new(sc->dmabase+16, sc->dmasize-16, 128/*overkill?*/)) == NULL) { printf(", unable to make dma pool\n"); goto bad; } sc->physaddr = sc->dmamap->dm_segs[0].ds_addr; printf("\n"); /* Kick device */ maestro_init(sc); maestro_read_codec(sc, 0, &cdata); if (cdata == 0x80) { printf("%s: PT101 codec unsupported, no mixer\n", sc->dev.dv_xname); /* Init values from Linux, no idea what this does. */ maestro_write_codec(sc, 0x2a, 0x0001); maestro_write_codec(sc, 0x2C, 0x0000); maestro_write_codec(sc, 0x2C, 0xFFFF); maestro_write_codec(sc, 0x10, 0x9F1F); maestro_write_codec(sc, 0x12, 0x0808); maestro_write_codec(sc, 0x14, 0x9F1F); maestro_write_codec(sc, 0x16, 0x9F1F); maestro_write_codec(sc, 0x18, 0x0404); maestro_write_codec(sc, 0x1A, 0x0000); maestro_write_codec(sc, 0x1C, 0x0000); maestro_write_codec(sc, 0x02, 0x0404); maestro_write_codec(sc, 0x04, 0x0808); maestro_write_codec(sc, 0x0C, 0x801F); maestro_write_codec(sc, 0x0E, 0x801F); /* no control over the mixer, sorry */ sc->codec_if = NULL; } else { /* Attach the AC'97 */ sc->host_if.arg = sc; sc->host_if.attach = maestro_attach_codec; sc->host_if.read = maestro_read_codec; sc->host_if.write = maestro_write_codec; sc->host_if.reset = maestro_reset_codec; if (ac97_attach(&sc->host_if) != 0) { printf("%s: couldn't attach codec\n", sc->dev.dv_xname); goto bad; } } sc->play.mode = MAESTRO_PLAY; sc->play.sc = sc; sc->play.num = 0; sc->record.sc = sc; sc->record.num = 2; sc->record.mode = 0; /* Attach audio */ audio_attach_mi(&maestro_hw_if, sc, &sc->dev); /* Hook power changes */ sc->suspend = PWR_RESUME; sc->powerhook = powerhook_establish(maestro_powerhook, sc); return; bad: /* Power down. */ maestro_power(sc, PPMI_D3); if (sc->ih) pci_intr_disestablish(pc, sc->ih); printf("%s: disabled\n", sc->dev.dv_xname); if (sc->dmapool) salloc_destroy(sc->dmapool); if (dmastage >= 3) bus_dmamap_destroy(sc->dmat, sc->dmamap); if (dmastage >= 2) bus_dmamem_unmap(sc->dmat, sc->dmabase, sc->dmasize); if (dmastage >= 1) bus_dmamem_free(sc->dmat, &sc->dmaseg, 1); } void maestro_init(sc) struct maestro_softc *sc; { int reg; pcireg_t data; /* Disable all legacy emulations. */ data = pci_conf_read(sc->pc, sc->pt, CONF_LEGACY); data |= LEGACY_DISABLED; pci_conf_write(sc->pc, sc->pt, CONF_LEGACY, data); /* Disconnect from CHI. (Makes Dell inspiron 7500 work?) * Enable posted write. * Prefer PCI timing rather than that of ISA. * Don't swap L/R. */ data = pci_conf_read(sc->pc, sc->pt, CONF_MAESTRO); data |= MAESTRO_CHIBUS | MAESTRO_POSTEDWRITE | MAESTRO_DMA_PCITIMING; data &= ~MAESTRO_SWAP_LR; pci_conf_write(sc->pc, sc->pt, CONF_MAESTRO, data); /* Reset direct sound. */ bus_space_write_2(sc->iot, sc->ioh, PORT_HOSTINT_CTRL, HOSTINT_CTRL_DSOUND_RESET); DELAY(10000); /* XXX - too long? */ bus_space_write_2(sc->iot, sc->ioh, PORT_HOSTINT_CTRL, 0); DELAY(10000); /* Enable direct sound and hardware volume control interruptions. */ bus_space_write_2(sc->iot, sc->ioh, PORT_HOSTINT_CTRL, HOSTINT_CTRL_DSOUND_INT_ENABLED | HOSTINT_CTRL_HWVOL_ENABLED); /* Setup Wave Processor. */ /* Enable WaveCache, set DMA base address. */ wp_reg_write(sc, WPREG_WAVE_ROMRAM, WP_WAVE_VIRTUAL_ENABLED | WP_WAVE_DRAM_ENABLED); bus_space_write_2(sc->iot, sc->ioh, PORT_WAVCACHE_CTRL, WAVCACHE_ENABLED | WAVCACHE_WTSIZE_4MB); for (reg = WAVCACHE_PCMBAR; reg < WAVCACHE_PCMBAR + 4; reg++) wc_reg_write(sc, reg, sc->physaddr >> WAVCACHE_BASEADDR_SHIFT); /* Setup Codec/Ringbus. */ maestro_initcodec(sc); bus_space_write_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL, RINGBUS_CTRL_RINGBUS_ENABLED | RINGBUS_CTRL_ACLINK_ENABLED); wp_reg_write(sc, WPREG_BASE, 0x8500); /* Parallel I/O */ ringbus_setdest(sc, RINGBUS_SRC_ADC, RINGBUS_DEST_STEREO | RINGBUS_DEST_DSOUND_IN); ringbus_setdest(sc, RINGBUS_SRC_DSOUND, RINGBUS_DEST_STEREO | RINGBUS_DEST_DAC); /* Setup ASSP. Needed for Dell Inspiron 7500? */ bus_space_write_1(sc->iot, sc->ioh, PORT_ASSP_CTRL_B, 0x00); bus_space_write_1(sc->iot, sc->ioh, PORT_ASSP_CTRL_A, 0x03); bus_space_write_1(sc->iot, sc->ioh, PORT_ASSP_CTRL_C, 0x00); /* * Reset hw volume to a known value so that we may handle diffs * off to AC'97. */ bus_space_write_1(sc->iot, sc->ioh, PORT_HWVOL_MASTER, MIDDLE_VOLUME); /* Setup GPIO if needed (NEC systems) */ if (sc->flags & MAESTRO_FLAG_SETUPGPIO) { /* Matthew Braithwaite reported that * NEC Versa LX doesn't need GPIO operation. */ bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_MASK, 0x9ff); bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_DIR, bus_space_read_2(sc->iot, sc->ioh, PORT_GPIO_DIR) | 0x600); bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_DATA, 0x200); } } /* ----------------------------- * Audio interface */ int maestro_round_blocksize(self, blk) void *self; int blk; { return (blk & ~0xf); } size_t maestro_round_buffersize(self, direction, size) void *self; int direction; size_t size; { return (size); } void * maestro_malloc(arg, dir, size, pool, flags) void *arg; int dir; size_t size; int pool, flags; { struct maestro_softc *sc = (struct maestro_softc *)arg; return (salloc_alloc(sc->dmapool, size)); } void maestro_free(self, ptr, pool) void *self, *ptr; int pool; { struct maestro_softc *sc = (struct maestro_softc *)self; salloc_free(sc->dmapool, ptr); } paddr_t maestro_mappage(self, mem, off, prot) void *self, *mem; off_t off; int prot; { struct maestro_softc *sc = (struct maestro_softc *)self; if (off < 0) return -1; return bus_dmamem_mmap(sc->dmat, &sc->dmaseg, 1, off, prot, BUS_DMA_WAITOK); } int maestro_get_props(self) void *self; { /* struct maestro_softc *sc = (struct maestro_softc *)self; */ return (AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT); /* XXX */ } int maestro_getdev(self, retp) void *self; struct audio_device *retp; { struct maestro_softc *sc = (struct maestro_softc *)self; *retp = *sc->sc_audev; return 0; } int maestro_set_port(self, cp) void *self; mixer_ctrl_t *cp; { struct ac97_codec_if *c = ((struct maestro_softc *)self)->codec_if; if (c) return (c->vtbl->mixer_set_port(c, cp)); else return (ENXIO); } int maestro_get_port(self, cp) void *self; mixer_ctrl_t *cp; { struct ac97_codec_if *c = ((struct maestro_softc *)self)->codec_if; if (c) return (c->vtbl->mixer_get_port(c, cp)); else return (ENXIO); } int maestro_query_devinfo(self, cp) void *self; mixer_devinfo_t *cp; { struct ac97_codec_if *c = ((struct maestro_softc *)self)->codec_if; if (c) return (c->vtbl->query_devinfo(c, cp)); else return (ENXIO); } struct audio_encoding maestro_tab[] = { {0, AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE, 16, 0}, {1, AudioEslinear, AUDIO_ENCODING_SLINEAR, 8, 0}, {2, AudioEulinear, AUDIO_ENCODING_ULINEAR, 8, 0}, {3, AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16, AUDIO_ENCODINGFLAG_EMULATED}, {4, AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE, 16, AUDIO_ENCODINGFLAG_EMULATED}, {5, AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE, 16, AUDIO_ENCODINGFLAG_EMULATED}, {6, AudioEmulaw, AUDIO_ENCODING_ULAW, 8, AUDIO_ENCODINGFLAG_EMULATED}, {7, AudioEalaw, AUDIO_ENCODING_ALAW, 8, AUDIO_ENCODINGFLAG_EMULATED} }; int maestro_query_encoding(hdl, fp) void *hdl; struct audio_encoding *fp; { if (fp->index < 0 || fp->index >= lengthof(maestro_tab)) return (EINVAL); *fp = maestro_tab[fp->index]; return (0); } #define UNUSED __attribute__((unused)) void maestro_set_speed(ch, prate) struct maestro_channel *ch; u_long *prate; { ch->speed = *prate; if ((ch->mode & (MAESTRO_8BIT | MAESTRO_STEREO)) == MAESTRO_8BIT) ch->speed /= 2; /* special common case */ if (ch->speed == 48000) { ch->dv = 0x10000; } else { /* compute 16 bits fixed point value of speed/48000, * being careful not to overflow */ ch->dv = (((ch->speed % 48000) << 16U) + 24000) / 48000 + ((ch->speed / 48000) << 16U); /* And this is the real rate obtained */ ch->speed = (ch->dv >> 16U) * 48000 + (((ch->dv & 0xffff)*48000)>>16U); } *prate = ch->speed; if ((ch->mode & (MAESTRO_8BIT | MAESTRO_STEREO)) == MAESTRO_8BIT) *prate *= 2; } u_int maestro_calc_timer_freq(ch) struct maestro_channel *ch; { u_int ss = 2; if (ch->mode & MAESTRO_8BIT) ss = 1; return (ch->speed * ss) / ch->blocksize; } void maestro_update_timer(sc) struct maestro_softc *sc; { u_int freq = 0; u_int n; if (sc->play.mode & MAESTRO_RUNNING) freq = maestro_calc_timer_freq(&sc->play); if (sc->record.mode & MAESTRO_RUNNING) { n = maestro_calc_timer_freq(&sc->record); if (freq < n) freq = n; } if (freq) { wp_settimer(sc, freq); wp_starttimer(sc); } else wp_stoptimer(sc); } int maestro_set_params(hdl, setmode, usemode, play, rec) void *hdl; int setmode, usemode; struct audio_params *play, *rec; { struct maestro_softc *sc = (struct maestro_softc *)hdl; if ((setmode & AUMODE_PLAY) == 0) return (0); /* Disallow parameter change on a running audio for now */ if (sc->play.mode & MAESTRO_RUNNING) return (EINVAL); if (play->sample_rate < 4000) play->sample_rate = 4000; else if (play->sample_rate > 48000) play->sample_rate = 48000; play->factor = 1; play->sw_code = NULL; if (play->channels != 1 && play->channels != 2) return (EINVAL); sc->play.mode = MAESTRO_PLAY; if (play->channels == 2) sc->play.mode |= MAESTRO_STEREO; if (play->encoding == AUDIO_ENCODING_ULAW) { play->factor = 2; play->sw_code = mulaw_to_slinear16_le; } else if (play->encoding == AUDIO_ENCODING_ALAW) { play->factor = 2; play->sw_code = alaw_to_slinear16_le; } else if (play->precision == 8) { sc->play.mode |= MAESTRO_8BIT; if (play->encoding == AUDIO_ENCODING_ULINEAR_LE || play->encoding == AUDIO_ENCODING_ULINEAR_BE) sc->play.mode |= MAESTRO_UNSIGNED; } else if (play->encoding == AUDIO_ENCODING_ULINEAR_LE) play->sw_code = change_sign16_le; else if (play->encoding == AUDIO_ENCODING_SLINEAR_BE) play->sw_code = swap_bytes; else if (play->encoding == AUDIO_ENCODING_ULINEAR_BE) play->sw_code = change_sign16_swap_bytes_le; else if (play->encoding != AUDIO_ENCODING_SLINEAR_LE) return (EINVAL); maestro_set_speed(&sc->play, &play->sample_rate); return (0); } int maestro_open(hdl, flags) void *hdl; int flags; { struct maestro_softc *sc = (struct maestro_softc *)hdl; DPRINTF(("%s: open(%d)\n", sc->dev.dv_xname, flags)); /* XXX work around VM brokeness */ #if 0 if ((OFLAGS(flags) & O_ACCMODE) != O_WRONLY) return (EINVAL); #endif sc->play.mode = MAESTRO_PLAY; sc->record.mode = 0; #ifdef AUDIO_DEBUG maestrointr_called = 0; maestrodma_effective = 0; #endif return (0); } void maestro_close(hdl) void *hdl; { struct maestro_softc *sc UNUSED = (struct maestro_softc *)hdl; /* nothing to do */ } void maestro_channel_stop(ch) struct maestro_channel *ch; { wp_apu_write(ch->sc, ch->num, APUREG_APUTYPE, APUTYPE_INACTIVE << APU_APUTYPE_SHIFT); if (ch->mode & MAESTRO_STEREO) wp_apu_write(ch->sc, ch->num+1, APUREG_APUTYPE, APUTYPE_INACTIVE << APU_APUTYPE_SHIFT); /* four channels for record... */ if (ch->mode & MAESTRO_PLAY) return; wp_apu_write(ch->sc, ch->num+2, APUREG_APUTYPE, APUTYPE_INACTIVE << APU_APUTYPE_SHIFT); if (ch->mode & MAESTRO_STEREO) wp_apu_write(ch->sc, ch->num+3, APUREG_APUTYPE, APUTYPE_INACTIVE << APU_APUTYPE_SHIFT); } int maestro_halt_input(hdl) void *hdl; { struct maestro_softc *sc = (struct maestro_softc *)hdl; maestro_channel_stop(&sc->record); sc->record.mode &= ~MAESTRO_RUNNING; maestro_update_timer(sc); return 0; } int maestro_halt_output(hdl) void *hdl; { struct maestro_softc *sc = (struct maestro_softc *)hdl; maestro_channel_stop(&sc->play); sc->play.mode &= ~MAESTRO_RUNNING; maestro_update_timer(sc); return 0; } int maestro_trigger_input(hdl, start, end, blksize, intr, arg, param) void *hdl; void *start, *end; int blksize; void (*intr)(void *); void *arg; struct audio_params *param; { struct maestro_softc *sc = (struct maestro_softc *)hdl; sc->record.mode |= MAESTRO_RUNNING; maestro_channel_start(&sc->record); sc->record.threshold = sc->record.start; maestro_update_timer(sc); return 0; } void maestro_channel_start(ch) struct maestro_channel *ch; { struct maestro_softc *sc = ch->sc; int n = ch->num; int aputype; wcreg_t wcreg = (sc->physaddr - 16) & WAVCACHE_CHCTL_ADDRTAG_MASK; switch(ch->mode & (MAESTRO_STEREO | MAESTRO_8BIT)) { case 0: aputype = APUTYPE_16BITLINEAR; break; case MAESTRO_STEREO: aputype = APUTYPE_16BITSTEREO; break; case MAESTRO_8BIT: aputype = APUTYPE_8BITLINEAR; break; case MAESTRO_8BIT|MAESTRO_STEREO: aputype = APUTYPE_8BITSTEREO; break; } if (ch->mode & MAESTRO_UNSIGNED) wcreg |= WAVCACHE_CHCTL_U8; if ((ch->mode & MAESTRO_STEREO) == 0) { DPRINTF(("Setting mono parameters\n")); wp_apu_write(sc, n, APUREG_WAVESPACE, ch->wpwa & 0xff00); wp_apu_write(sc, n, APUREG_CURPTR, ch->current); wp_apu_write(sc, n, APUREG_ENDPTR, ch->end); wp_apu_write(sc, n, APUREG_LOOPLEN, ch->end - ch->start); wp_apu_write(sc, n, APUREG_AMPLITUDE, 0xe800); wp_apu_write(sc, n, APUREG_POSITION, 0x8f00 | (RADIUS_CENTERCIRCLE << APU_RADIUS_SHIFT) | (PAN_FRONT << APU_PAN_SHIFT)); wp_apu_write(sc, n, APUREG_FREQ_LOBYTE, APU_plus6dB | ((ch->dv & 0xff) << APU_FREQ_LOBYTE_SHIFT)); wp_apu_write(sc, n, APUREG_FREQ_HIWORD, ch->dv >> 8); wc_ctrl_write(sc, n, wcreg); wp_apu_write(sc, n, APUREG_APUTYPE, (aputype << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf); } else { wcreg |= WAVCACHE_CHCTL_STEREO; DPRINTF(("Setting stereo parameters\n")); wp_apu_write(sc, n+1, APUREG_WAVESPACE, ch->wpwa & 0xff00); wp_apu_write(sc, n+1, APUREG_CURPTR, ch->current); wp_apu_write(sc, n+1, APUREG_ENDPTR, ch->end); wp_apu_write(sc, n+1, APUREG_LOOPLEN, ch->end - ch->start); wp_apu_write(sc, n+1, APUREG_AMPLITUDE, 0xe800); wp_apu_write(sc, n+1, APUREG_POSITION, 0x8f00 | (RADIUS_CENTERCIRCLE << APU_RADIUS_SHIFT) | (PAN_LEFT << APU_PAN_SHIFT)); wp_apu_write(sc, n+1, APUREG_FREQ_LOBYTE, APU_plus6dB | ((ch->dv & 0xff) << APU_FREQ_LOBYTE_SHIFT)); wp_apu_write(sc, n+1, APUREG_FREQ_HIWORD, ch->dv >> 8); if (ch->mode & MAESTRO_8BIT) wp_apu_write(sc, n, APUREG_WAVESPACE, ch->wpwa & 0xff00); else wp_apu_write(sc, n, APUREG_WAVESPACE, (ch->wpwa|(APU_STEREO >> 1)) & 0xff00); wp_apu_write(sc, n, APUREG_CURPTR, ch->current); wp_apu_write(sc, n, APUREG_ENDPTR, ch->end); wp_apu_write(sc, n, APUREG_LOOPLEN, ch->end - ch->start); wp_apu_write(sc, n, APUREG_AMPLITUDE, 0xe800); wp_apu_write(sc, n, APUREG_POSITION, 0x8f00 | (RADIUS_CENTERCIRCLE << APU_RADIUS_SHIFT) | (PAN_RIGHT << APU_PAN_SHIFT)); wp_apu_write(sc, n, APUREG_FREQ_LOBYTE, APU_plus6dB | ((ch->dv & 0xff) << APU_FREQ_LOBYTE_SHIFT)); wp_apu_write(sc, n, APUREG_FREQ_HIWORD, ch->dv >> 8); wc_ctrl_write(sc, n, wcreg); wc_ctrl_write(sc, n+1, wcreg); wp_apu_write(sc, n, APUREG_APUTYPE, (aputype << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf); wp_apu_write(sc, n+1, APUREG_APUTYPE, (aputype << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf); } } int maestro_trigger_output(hdl, start, end, blksize, intr, arg, param) void *hdl; void *start, *end; int blksize; void (*intr)(void *); void *arg; struct audio_params *param; { struct maestro_softc *sc = (struct maestro_softc *)hdl; u_int offset = ((caddr_t)start - sc->dmabase) >> 1; u_int size = (end - start) >> 1; sc->play.mode |= MAESTRO_RUNNING; sc->play.wpwa = APU_USE_SYSMEM | (offset >> 8); DPRINTF(("maestro_trigger_output: start=%x, end=%x, blksize=%x ", start, end, blksize)); DPRINTF(("offset = %x, size=%x\n", offset, size)); sc->play.intr = intr; sc->play.intr_arg = arg; sc->play.blocksize = blksize; sc->play.end = offset+size; sc->play.start = offset; sc->play.current = sc->play.start; if ((sc->play.mode & (MAESTRO_STEREO | MAESTRO_8BIT)) == MAESTRO_STEREO) { sc->play.wpwa >>= 1; sc->play.start >>= 1; sc->play.end >>= 1; sc->play.blocksize >>= 1; } maestro_channel_start(&sc->play); sc->play.threshold = sc->play.start; maestro_update_timer(sc); return 0; } /* ----------------------------- * Codec interface */ int maestro_read_codec(self, regno, datap) void *self; u_int8_t regno; u_int16_t *datap; { struct maestro_softc *sc = (struct maestro_softc *)self; int t; /* We have to wait for a SAFE time to write addr/data */ for (t = 0; t < 20; t++) { if ((bus_space_read_1(sc->iot, sc->ioh, PORT_CODEC_STAT) & CODEC_STAT_MASK) != CODEC_STAT_PROGLESS) break; DELAY(2); /* 20.8us / 13 */ } if (t == 20) printf("%s: maestro_read_codec() PROGLESS timed out.\n", sc->dev.dv_xname); /* XXX return 1 */ bus_space_write_1(sc->iot, sc->ioh, PORT_CODEC_CMD, CODEC_CMD_READ | regno); DELAY(21); /* AC97 cycle = 20.8usec */ /* Wait for data retrieve */ for (t = 0; t < 20; t++) { if ((bus_space_read_1(sc->iot, sc->ioh, PORT_CODEC_STAT) & CODEC_STAT_MASK) == CODEC_STAT_RW_DONE) break; DELAY(2); /* 20.8us / 13 */ } if (t == 20) /* Timed out, but perform dummy read. */ printf("%s: maestro_read_codec() RW_DONE timed out.\n", sc->dev.dv_xname); *datap = bus_space_read_2(sc->iot, sc->ioh, PORT_CODEC_REG); return 0; } int maestro_write_codec(self, regno, data) void *self; u_int8_t regno; u_int16_t data; { struct maestro_softc *sc = (struct maestro_softc *)self; int t; /* We have to wait for a SAFE time to write addr/data */ for (t = 0; t < 20; t++) { if ((bus_space_read_1(sc->iot, sc->ioh, PORT_CODEC_STAT) & CODEC_STAT_MASK) != CODEC_STAT_PROGLESS) break; DELAY(2); /* 20.8us / 13 */ } if (t == 20) { /* Timed out. Abort writing. */ printf("%s: maestro_write_codec() PROGLESS timed out.\n", sc->dev.dv_xname); return 1; } bus_space_write_2(sc->iot, sc->ioh, PORT_CODEC_REG, data); bus_space_write_1(sc->iot, sc->ioh, PORT_CODEC_CMD, CODEC_CMD_WRITE | regno); return 0; } int maestro_attach_codec(self, cif) void *self; struct ac97_codec_if *cif; { struct maestro_softc *sc = (struct maestro_softc *)self; sc->codec_if = cif; return 0; } void maestro_reset_codec(self) void *self UNUSED; { } void maestro_initcodec(self) void *self; { struct maestro_softc *sc = (struct maestro_softc *)self; u_int16_t data; if (bus_space_read_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL) & RINGBUS_CTRL_ACLINK_ENABLED) { bus_space_write_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL, 0); DELAY(104); /* 20.8us * (4 + 1) */ } /* XXX - 2nd codec should be looked at. */ bus_space_write_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL, RINGBUS_CTRL_AC97_SWRESET); DELAY(2); bus_space_write_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL, RINGBUS_CTRL_ACLINK_ENABLED); DELAY(21); maestro_read_codec(sc, 0, &data); if ((bus_space_read_1(sc->iot, sc->ioh, PORT_CODEC_STAT) & CODEC_STAT_MASK) != 0) { bus_space_write_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL, 0); DELAY(21); /* Try cold reset. */ printf("%s: resetting codec\n", sc->dev.dv_xname); data = bus_space_read_2(sc->iot, sc->ioh, PORT_GPIO_DIR); if (pci_conf_read(sc->pc, sc->pt, 0x58) & 1) data |= 0x10; data |= 0x009 & ~bus_space_read_2(sc->iot, sc->ioh, PORT_GPIO_DATA); bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_MASK, 0xff6); bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_DIR, data | 0x009); bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_DATA, 0x000); DELAY(2); bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_DATA, 0x001); DELAY(1); bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_DATA, 0x009); DELAY(500000); bus_space_write_2(sc->iot, sc->ioh, PORT_GPIO_DIR, data); DELAY(84); /* 20.8us * 4 */ bus_space_write_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL, RINGBUS_CTRL_ACLINK_ENABLED); DELAY(21); } /* Check the codec to see is still busy */ if ((bus_space_read_1(sc->iot, sc->ioh, PORT_CODEC_STAT) & CODEC_STAT_MASK) != 0) { printf("%s: codec failure\n", sc->dev.dv_xname); } } /* ----------------------------- * Power management interface */ void maestro_powerhook(why, self) int why; void *self; { struct maestro_softc *sc = (struct maestro_softc *)self; if (why != PWR_RESUME) { /* Power down device on shutdown. */ DPRINTF(("maestro: power down\n")); sc->suspend = why; if (sc->record.mode & MAESTRO_RUNNING) { sc->record.current = wp_apu_read(sc, sc->record.num, APUREG_CURPTR); maestro_channel_stop(&sc->record); } if (sc->play.mode & MAESTRO_RUNNING) { sc->play.current = wp_apu_read(sc, sc->play.num, APUREG_CURPTR); maestro_channel_stop(&sc->play); } wp_stoptimer(sc); /* Power down everything except clock. */ bus_space_write_2(sc->iot, sc->ioh, PORT_HOSTINT_CTRL, 0); maestro_write_codec(sc, AC97_REG_POWER, 0xdf00); DELAY(20); bus_space_write_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL, 0); DELAY(1); maestro_power(sc, PPMI_D3); } else { /* Power up device on resume. */ DPRINTF(("maestro: power resume\n")); if (sc->suspend == PWR_RESUME) { printf("%s: resume without suspend?\n", sc->dev.dv_xname); sc->suspend = why; return; } sc->suspend = why; maestro_power(sc, PPMI_D0); DELAY(100000); maestro_init(sc); /* Restore codec settings */ if (sc->codec_if) sc->codec_if->vtbl->restore_ports(sc->codec_if); if (sc->play.mode & MAESTRO_RUNNING) maestro_channel_start(&sc->play); if (sc->record.mode & MAESTRO_RUNNING) maestro_channel_start(&sc->record); maestro_update_timer(sc); } } void maestro_power(sc, status) struct maestro_softc *sc; int status; { int data; /* Set the power state of the device. */ data = pci_conf_read(sc->pc, sc->pt, CONF_PM_PTR); data = pci_conf_read(sc->pc, sc->pt, data); if (data == PPMI_CID) pci_conf_write(sc->pc, sc->pt, data + PM_CTRL, status); } void maestro_channel_advance_dma(ch) struct maestro_channel *ch; { wpreg_t pos; #ifdef AUDIO_DEBUG maestrointr_called++; #endif for (;;) { pos = wp_apu_read(ch->sc, ch->num, APUREG_CURPTR); /* Are we still processing the current dma block ? */ if (pos >= ch->threshold && pos < ch->threshold + ch->blocksize/2) break; ch->threshold += ch->blocksize/2; if (ch->threshold >= ch->end) ch->threshold = ch->start; (*ch->intr)(ch->intr_arg); #ifdef AUDIO_DEBUG maestrodma_effective++; #endif } #ifdef AUDIO_DEBUG if (maestrodebug && maestrointr_called % 64 == 0) printf("maestro: dma advanced %lu for %lu calls\n", maestrodma_effective, maestrointr_called); #endif } /* Some maestro makes sometimes get desynchronized in stereo mode. */ void maestro_channel_suppress_jitter(ch) struct maestro_channel *ch; { int cp, diff; /* Verify that both channels are not too far off. */ cp = wp_apu_read(ch->sc, ch->num, APUREG_CURPTR); diff = wp_apu_read(ch->sc, ch->num+1, APUREG_CURPTR) - cp; if (diff > 4 || diff < -4) /* Otherwise, directly resynch the 2nd channel. */ bus_space_write_2(ch->sc->iot, ch->sc->ioh, PORT_DSP_DATA, cp); } /* ----------------------------- * Interrupt handler interface */ int maestro_intr(arg) void *arg; { struct maestro_softc *sc = (struct maestro_softc *)arg; u_int16_t status; status = bus_space_read_1(sc->iot, sc->ioh, PORT_HOSTINT_STAT); if (status == 0) return 0; /* Not for us? */ /* Acknowledge all. */ bus_space_write_2(sc->iot, sc->ioh, PORT_INT_STAT, 1); bus_space_write_1(sc->iot, sc->ioh, PORT_HOSTINT_STAT, status); /* Hardware volume support */ if (status & HOSTINT_STAT_HWVOL && sc->codec_if != NULL) { int n, i, delta, v; mixer_ctrl_t hwvol; n = bus_space_read_1(sc->iot, sc->ioh, PORT_HWVOL_MASTER); /* Special case: Mute key */ if (n & 0x11) { hwvol.type = AUDIO_MIXER_ENUM; hwvol.dev = sc->codec_if->vtbl->get_portnum_by_name(sc->codec_if, AudioCoutputs, AudioNmaster, AudioNmute); sc->codec_if->vtbl->mixer_get_port(sc->codec_if, &hwvol); hwvol.un.ord = !hwvol.un.ord; } else { hwvol.type = AUDIO_MIXER_VALUE; hwvol.un.value.num_channels = 2; hwvol.dev = sc->codec_if->vtbl->get_portnum_by_name( sc->codec_if, AudioCoutputs, AudioNmaster, NULL); sc->codec_if->vtbl->mixer_get_port(sc->codec_if, &hwvol); /* XXX AC'97 yields five bits for master volume. */ delta = (n - MIDDLE_VOLUME)/STEP_VOLUME * 8; for (i = 0; i < hwvol.un.value.num_channels; i++) { v = ((int)hwvol.un.value.level[i]) + delta; if (v < 0) v = 0; else if (v > 255) v = 255; hwvol.un.value.level[i] = v; } } sc->codec_if->vtbl->mixer_set_port(sc->codec_if, &hwvol); /* Reset to compute next diffs */ bus_space_write_1(sc->iot, sc->ioh, PORT_HWVOL_MASTER, MIDDLE_VOLUME); } if (sc->play.mode & MAESTRO_RUNNING) { maestro_channel_advance_dma(&sc->play); if (sc->play.mode & MAESTRO_STEREO) maestro_channel_suppress_jitter(&sc->play); } if (sc->record.mode & MAESTRO_RUNNING) maestro_channel_advance_dma(&sc->record); return 1; } /* ----------------------------- * Hardware interface */ /* Codec/Ringbus */ void ringbus_setdest(struct maestro_softc *sc, int src, int dest) { u_int32_t data; data = bus_space_read_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL); data &= ~(0xfU << src); data |= (0xfU & dest) << src; bus_space_write_4(sc->iot, sc->ioh, PORT_RINGBUS_CTRL, data); } /* Wave Processor */ wpreg_t wp_reg_read(struct maestro_softc *sc, int reg) { bus_space_write_2(sc->iot, sc->ioh, PORT_DSP_INDEX, reg); return bus_space_read_2(sc->iot, sc->ioh, PORT_DSP_DATA); } void wp_reg_write(struct maestro_softc *sc, int reg, wpreg_t data) { bus_space_write_2(sc->iot, sc->ioh, PORT_DSP_INDEX, reg); bus_space_write_2(sc->iot, sc->ioh, PORT_DSP_DATA, data); } static void apu_setindex(struct maestro_softc *sc, int reg) { int t; wp_reg_write(sc, WPREG_CRAM_PTR, reg); /* Sometimes WP fails to set apu register index. */ for (t = 0; t < 1000; t++) { if (bus_space_read_2(sc->iot, sc->ioh, PORT_DSP_DATA) == reg) break; bus_space_write_2(sc->iot, sc->ioh, PORT_DSP_DATA, reg); } if (t == 1000) printf("%s: apu_setindex() timeout\n", sc->dev.dv_xname); } wpreg_t wp_apu_read(struct maestro_softc *sc, int ch, int reg) { wpreg_t ret; apu_setindex(sc, ((unsigned)ch << 4) + reg); ret = wp_reg_read(sc, WPREG_DATA_PORT); return ret; } void wp_apu_write(struct maestro_softc *sc, int ch, int reg, wpreg_t data) { int t; apu_setindex(sc, ((unsigned)ch << 4) + reg); wp_reg_write(sc, WPREG_DATA_PORT, data); for (t = 0; t < 1000; t++) { if (bus_space_read_2(sc->iot, sc->ioh, PORT_DSP_DATA) == data) break; bus_space_write_2(sc->iot, sc->ioh, PORT_DSP_DATA, data); } if (t == 1000) printf("%s: wp_apu_write() timeout\n", sc->dev.dv_xname); } void wp_settimer(struct maestro_softc *sc, u_int freq) { u_int clock = 48000 << 2; u_int prescale = 0, divide = (freq != 0) ? (clock / freq) : ~0; if (divide < 4) divide = 4; else if (divide > 32 << 8) divide = 32 << 8; for (; divide > 32 << 1; divide >>= 1) prescale++; divide = (divide + 1) >> 1; for (; prescale < 7 && divide > 2 && !(divide & 1); divide >>= 1) prescale++; wp_reg_write(sc, WPREG_TIMER_ENABLE, 0); wp_reg_write(sc, WPREG_TIMER_FREQ, (prescale << WP_TIMER_FREQ_PRESCALE_SHIFT) | (divide - 1)); wp_reg_write(sc, WPREG_TIMER_ENABLE, 1); } void wp_starttimer(struct maestro_softc *sc) { wp_reg_write(sc, WPREG_TIMER_START, 1); } void wp_stoptimer(struct maestro_softc *sc) { wp_reg_write(sc, WPREG_TIMER_START, 0); bus_space_write_2(sc->iot, sc->ioh, PORT_INT_STAT, 1); } /* WaveCache */ wcreg_t wc_reg_read(struct maestro_softc *sc, int reg) { bus_space_write_2(sc->iot, sc->ioh, PORT_WAVCACHE_INDEX, reg); return bus_space_read_2(sc->iot, sc->ioh, PORT_WAVCACHE_DATA); } void wc_reg_write(struct maestro_softc *sc, int reg, wcreg_t data) { bus_space_write_2(sc->iot, sc->ioh, PORT_WAVCACHE_INDEX, reg); bus_space_write_2(sc->iot, sc->ioh, PORT_WAVCACHE_DATA, data); } u_int16_t wc_ctrl_read(struct maestro_softc *sc, int ch) { return wc_reg_read(sc, ch << 3); } void wc_ctrl_write(struct maestro_softc *sc, int ch, wcreg_t data) { wc_reg_write(sc, ch << 3, data); } /* ----------------------------- * Simple zone allocator. * (All memory allocated in advance) */ salloc_t salloc_new(addr, size, nzones) caddr_t addr; size_t size; int nzones; { struct salloc_pool *pool; struct salloc_zone *space; int i; MALLOC(pool, salloc_t, sizeof *pool + nzones * sizeof pool->zones[0], M_TEMP, M_NOWAIT); if (pool == NULL) return NULL; SLIST_INIT(&pool->free); SLIST_INIT(&pool->used); SLIST_INIT(&pool->spare); /* Espie says the following line is obvious */ pool->zones = (struct salloc_zone *)(pool + 1); for (i = 1; i < nzones; i++) SLIST_INSERT_HEAD(&pool->spare, &pool->zones[i], link); space = &pool->zones[0]; space->addr = addr; space->size = size; SLIST_INSERT_HEAD(&pool->free, space, link); return pool; } void salloc_destroy(pool) salloc_t pool; { FREE(pool, M_TEMP); } void salloc_insert(pool, head, zone, merge) salloc_t pool; struct salloc_head *head; struct salloc_zone *zone; int merge; { struct salloc_zone *prev, *next; /* * Insert a zone into an ordered list of zones, possibly * merging adjacent zones. */ prev = NULL; SLIST_FOREACH(next, head, link) { if (next->addr > zone->addr) break; prev = next; } if (merge && prev && prev->addr + prev->size == zone->addr) { prev->size += zone->size; SLIST_INSERT_HEAD(&pool->spare, zone, link); zone = prev; } else if (prev) SLIST_INSERT_AFTER(prev, zone, link); else SLIST_INSERT_HEAD(head, zone, link); if (merge && next && zone->addr + zone->size == next->addr) { zone->size += next->size; SLIST_REMOVE(head, next, salloc_zone, link); SLIST_INSERT_HEAD(&pool->spare, next, link); } } caddr_t salloc_alloc(pool, size) salloc_t pool; size_t size; { struct salloc_zone *zone, *uzone; SLIST_FOREACH(zone, &pool->free, link) if (zone->size >= size) break; if (zone == SLIST_END(&pool->free)) return NULL; if (zone->size == size) { SLIST_REMOVE(&pool->free, zone, salloc_zone, link); uzone = zone; } else { uzone = SLIST_FIRST(&pool->spare); if (uzone == NULL) return NULL; /* XXX */ SLIST_REMOVE_HEAD(&pool->spare, link); uzone->size = size; uzone->addr = zone->addr; zone->size -= size; zone->addr += size; } salloc_insert(pool, &pool->used, uzone, 0); return uzone->addr; } void salloc_free(pool, addr) salloc_t pool; caddr_t addr; { struct salloc_zone *zone; SLIST_FOREACH(zone, &pool->used, link) if (zone->addr == addr) break; #ifdef DIAGNOSTIC if (zone == SLIST_END(&pool->used)) panic("salloc_free: freeing unallocated memory"); #endif SLIST_REMOVE(&pool->used, zone, salloc_zone, link); salloc_insert(pool, &pool->free, zone, 1); }