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Annotation of sys/dev/pci/fms.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: fms.c,v 1.17 2005/04/16 21:57:23 mickey Exp $ */
        !             2: /*     $NetBSD: fms.c,v 1.5.4.1 2000/06/30 16:27:50 simonb Exp $       */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 1999 The NetBSD Foundation, Inc.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to The NetBSD Foundation
        !             9:  * by Witold J. Wnuk.
        !            10:  *
        !            11:  * Redistribution and use in source and binary forms, with or without
        !            12:  * modification, are permitted provided that the following conditions
        !            13:  * are met:
        !            14:  * 1. Redistributions of source code must retain the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer.
        !            16:  * 2. Redistributions in binary form must reproduce the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer in the
        !            18:  *    documentation and/or other materials provided with the distribution.
        !            19:  * 3. All advertising materials mentioning features or use of this software
        !            20:  *    must display the following acknowledgement:
        !            21:  *     This product includes software developed by the NetBSD
        !            22:  *     Foundation, Inc. and its contributors.
        !            23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
        !            24:  *    contributors may be used to endorse or promote products derived
        !            25:  *    from this software without specific prior written permission.
        !            26:  *
        !            27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            37:  * POSSIBILITY OF SUCH DAMAGE.
        !            38:  */
        !            39:
        !            40: /*
        !            41:  * Forte Media FM801 Audio Device Driver
        !            42:  */
        !            43:
        !            44: #include "radio.h"
        !            45:
        !            46: #include <sys/param.h>
        !            47: #include <sys/systm.h>
        !            48: #include <sys/kernel.h>
        !            49: #include <sys/malloc.h>
        !            50: #include <sys/device.h>
        !            51: #include <sys/audioio.h>
        !            52:
        !            53: #include <machine/bus.h>
        !            54: #include <machine/cpu.h>
        !            55:
        !            56: #include <dev/pci/pcidevs.h>
        !            57: #include <dev/pci/pcivar.h>
        !            58:
        !            59: #include <dev/audio_if.h>
        !            60: #include <dev/mulaw.h>
        !            61: #include <dev/auconv.h>
        !            62:
        !            63: #include <dev/ic/ac97.h>
        !            64: #if 0
        !            65: #include <dev/ic/mpuvar.h>
        !            66: #endif
        !            67:
        !            68: #include <dev/pci/fmsreg.h>
        !            69: #include <dev/pci/fmsvar.h>
        !            70:
        !            71:
        !            72: struct fms_dma {
        !            73:        struct fms_dma *next;
        !            74:        caddr_t addr;
        !            75:        size_t size;
        !            76:        bus_dmamap_t map;
        !            77:        bus_dma_segment_t seg;
        !            78: };
        !            79:
        !            80:
        !            81:
        !            82: int    fms_match(struct device *, void *, void *);
        !            83: void   fms_attach(struct device *, struct device *, void *);
        !            84: int    fms_intr(void *);
        !            85:
        !            86: int    fms_open(void *, int);
        !            87: void   fms_close(void *);
        !            88: int    fms_query_encoding(void *, struct audio_encoding *);
        !            89: int    fms_set_params(void *, int, int, struct audio_params *,
        !            90:                            struct audio_params *);
        !            91: int    fms_round_blocksize(void *, int);
        !            92: int    fms_halt_output(void *);
        !            93: int    fms_halt_input(void *);
        !            94: int    fms_getdev(void *, struct audio_device *);
        !            95: int    fms_set_port(void *, mixer_ctrl_t *);
        !            96: int    fms_get_port(void *, mixer_ctrl_t *);
        !            97: int    fms_query_devinfo(void *, mixer_devinfo_t *);
        !            98: void   *fms_malloc(void *, int, size_t, int, int);
        !            99: void   fms_free(void *, void *, int);
        !           100: paddr_t        fms_mappage(void *, void *, off_t, int);
        !           101: int    fms_get_props(void *);
        !           102: int    fms_trigger_output(void *, void *, void *, int, void (*)(void *),
        !           103:                           void *, struct audio_params *);
        !           104: int    fms_trigger_input(void *, void *, void *, int, void (*)(void *),
        !           105:                          void *, struct audio_params *);
        !           106:
        !           107: struct  cfdriver fms_cd = {
        !           108:        NULL, "fms", DV_DULL
        !           109: };
        !           110:
        !           111: struct cfattach fms_ca = {
        !           112:        sizeof (struct fms_softc), fms_match, fms_attach
        !           113: };
        !           114:
        !           115: struct audio_device fms_device = {
        !           116:        "Forte Media 801",
        !           117:        "1.0",
        !           118:        "fms"
        !           119: };
        !           120:
        !           121:
        !           122: struct audio_hw_if fms_hw_if = {
        !           123:        fms_open,
        !           124:        fms_close,
        !           125:        NULL,
        !           126:        fms_query_encoding,
        !           127:        fms_set_params,
        !           128:        fms_round_blocksize,
        !           129:        NULL,
        !           130:        NULL,
        !           131:        NULL,
        !           132:        NULL,
        !           133:        NULL,
        !           134:        fms_halt_output,
        !           135:        fms_halt_input,
        !           136:        NULL,
        !           137:        fms_getdev,
        !           138:        NULL,
        !           139:        fms_set_port,
        !           140:        fms_get_port,
        !           141:        fms_query_devinfo,
        !           142:        fms_malloc,
        !           143:        fms_free,
        !           144:        NULL,
        !           145:        fms_mappage,
        !           146:        fms_get_props,
        !           147:        fms_trigger_output,
        !           148:        fms_trigger_input
        !           149: };
        !           150:
        !           151: int    fms_attach_codec(void *, struct ac97_codec_if *);
        !           152: int    fms_read_codec(void *, u_int8_t, u_int16_t *);
        !           153: int    fms_write_codec(void *, u_int8_t, u_int16_t);
        !           154: void   fms_reset_codec(void *);
        !           155:
        !           156: int    fms_allocmem(struct fms_softc *, size_t, size_t,
        !           157:                          struct fms_dma *);
        !           158: int    fms_freemem(struct fms_softc *, struct fms_dma *);
        !           159:
        !           160: int
        !           161: fms_match(parent, match, aux)
        !           162:        struct device *parent;
        !           163:        void *match;
        !           164:        void *aux;
        !           165: {
        !           166:        struct pci_attach_args *pa = (struct pci_attach_args *) aux;
        !           167:
        !           168:        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_FORTEMEDIA &&
        !           169:            PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_FORTEMEDIA_FM801)
        !           170:                return (1);
        !           171:        return (0);
        !           172: }
        !           173:
        !           174: void
        !           175: fms_attach(parent, self, aux)
        !           176:        struct device *parent;
        !           177:        struct device *self;
        !           178:        void *aux;
        !           179: {
        !           180:        struct pci_attach_args *pa = aux;
        !           181:        struct fms_softc *sc = (struct fms_softc *) self;
        !           182:        struct audio_attach_args aa;
        !           183:        pci_chipset_tag_t pc = pa->pa_pc;
        !           184:        pcitag_t pt = pa->pa_tag;
        !           185:        pci_intr_handle_t ih;
        !           186:        bus_size_t iosize;
        !           187:        const char *intrstr;
        !           188:        u_int16_t k1;
        !           189:        int i;
        !           190:
        !           191:        if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot,
        !           192:            &sc->sc_ioh, NULL, &iosize, 0)) {
        !           193:                printf(": can't map i/o space\n");
        !           194:                return;
        !           195:        }
        !           196:
        !           197:        if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, 0x30, 2,
        !           198:            &sc->sc_mpu_ioh)) {
        !           199:                printf(": can't get mpu subregion handle\n");
        !           200:                bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
        !           201:                return;
        !           202:        }
        !           203:
        !           204:        if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, 0x68, 4,
        !           205:            &sc->sc_opl_ioh)) {
        !           206:                printf(": can't get opl subregion handle\n");
        !           207:                bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
        !           208:                return;
        !           209:        }
        !           210:
        !           211:        if (pci_intr_map(pa, &ih)) {
        !           212:                printf(": couldn't map interrupt\n");
        !           213:                bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
        !           214:                return;
        !           215:        }
        !           216:        intrstr = pci_intr_string(pc, ih);
        !           217:
        !           218:        sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, fms_intr, sc,
        !           219:            sc->sc_dev.dv_xname);
        !           220:        if (sc->sc_ih == NULL) {
        !           221:                printf(": couldn't establish interrupt");
        !           222:                if (intrstr != NULL)
        !           223:                        printf(" at %s", intrstr);
        !           224:                printf("\n");
        !           225:                bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
        !           226:                return;
        !           227:        }
        !           228:
        !           229:        printf(": %s\n", intrstr);
        !           230:
        !           231:        sc->sc_dmat = pa->pa_dmat;
        !           232:
        !           233:        /* Disable legacy audio (SBPro compatibility) */
        !           234:        pci_conf_write(pc, pt, 0x40, 0);
        !           235:
        !           236:        /* Reset codec and AC'97 */
        !           237:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0020);
        !           238:        delay(2);               /* > 1us according to AC'97 documentation */
        !           239:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0000);
        !           240:        delay(1);               /* > 168.2ns according to AC'97 documentation */
        !           241:
        !           242:        /* Set up volume */
        !           243:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PCM_VOLUME, 0x0808);
        !           244:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_FM_VOLUME, 0x0808);
        !           245:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_I2S_VOLUME, 0x0808);
        !           246:
        !           247:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_RECORD_SOURCE, 0x0000);
        !           248:
        !           249:        /* Unmask playback, record and mpu interrupts, mask the rest */
        !           250:        k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_INTMASK);
        !           251:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTMASK,
        !           252:            (k1 & ~(FM_INTMASK_PLAY | FM_INTMASK_REC | FM_INTMASK_MPU)) |
        !           253:             FM_INTMASK_VOL);
        !           254:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS,
        !           255:            FM_INTSTATUS_PLAY | FM_INTSTATUS_REC | FM_INTSTATUS_MPU |
        !           256:            FM_INTSTATUS_VOL);
        !           257:
        !           258: #if NRADIO > 0
        !           259:        fmsradio_attach(sc);
        !           260: #endif /* NRADIO > 0 */
        !           261:
        !           262:        sc->host_if.arg = sc;
        !           263:        sc->host_if.attach = fms_attach_codec;
        !           264:        sc->host_if.read = fms_read_codec;
        !           265:        sc->host_if.write = fms_write_codec;
        !           266:        sc->host_if.reset = fms_reset_codec;
        !           267:
        !           268:        if (ac97_attach(&sc->host_if) != 0)
        !           269:                return;
        !           270:
        !           271:        /* Turn mute off */
        !           272:        for (i = 0; i < 3; i++) {
        !           273:                static struct {
        !           274:                        char *class, *device;
        !           275:                } d[] = {
        !           276:                        { AudioCoutputs, AudioNmaster },
        !           277:                        { AudioCinputs, AudioNdac },
        !           278:                        { AudioCrecord, AudioNvolume }
        !           279:                };
        !           280:                struct mixer_ctrl ctl;
        !           281:
        !           282:                ctl.type = AUDIO_MIXER_ENUM;
        !           283:                ctl.un.ord = 0;
        !           284:                ctl.dev = sc->codec_if->vtbl->get_portnum_by_name(sc->codec_if,
        !           285:                        d[i].class, d[i].device, AudioNmute);
        !           286:                fms_set_port(sc, &ctl);
        !           287:        }
        !           288:
        !           289:        audio_attach_mi(&fms_hw_if, sc, &sc->sc_dev);
        !           290:
        !           291:        aa.type = AUDIODEV_TYPE_OPL;
        !           292:        aa.hwif = NULL;
        !           293:        aa.hdl = NULL;
        !           294:        config_found(&sc->sc_dev, &aa, audioprint);
        !           295:
        !           296:        aa.type = AUDIODEV_TYPE_MPU;
        !           297:        aa.hwif = NULL;
        !           298:        aa.hdl = NULL;
        !           299:        sc->sc_mpu_dev = config_found(&sc->sc_dev, &aa, audioprint);
        !           300: }
        !           301:
        !           302: /*
        !           303:  * Each AC-link frame takes 20.8us, data should be ready in next frame,
        !           304:  * we allow more than two.
        !           305:  */
        !           306: #define TIMO 50
        !           307: int
        !           308: fms_read_codec(addr, reg, val)
        !           309:        void *addr;
        !           310:        u_int8_t reg;
        !           311:        u_int16_t *val;
        !           312: {
        !           313:        struct fms_softc *sc = addr;
        !           314:        int i;
        !           315:
        !           316:        /* Poll until codec is ready */
        !           317:        for (i = 0; i < TIMO && bus_space_read_2(sc->sc_iot, sc->sc_ioh,
        !           318:                 FM_CODEC_CMD) & FM_CODEC_CMD_BUSY; i++)
        !           319:                delay(1);
        !           320:        if (i >= TIMO) {
        !           321:                printf("fms: codec busy\n");
        !           322:                return 1;
        !           323:        }
        !           324:
        !           325:        /* Write register index, read access */
        !           326:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD,
        !           327:                          reg | FM_CODEC_CMD_READ);
        !           328:
        !           329:        /* Poll until we have valid data */
        !           330:        for (i = 0; i < TIMO && !(bus_space_read_2(sc->sc_iot, sc->sc_ioh,
        !           331:                 FM_CODEC_CMD) & FM_CODEC_CMD_VALID); i++)
        !           332:                delay(1);
        !           333:        if (i >= TIMO) {
        !           334:                printf("fms: no data from codec\n");
        !           335:                return 1;
        !           336:        }
        !           337:
        !           338:        /* Read data */
        !           339:        *val = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_DATA);
        !           340:        return 0;
        !           341: }
        !           342:
        !           343: int
        !           344: fms_write_codec(addr, reg, val)
        !           345:        void *addr;
        !           346:        u_int8_t reg;
        !           347:        u_int16_t val;
        !           348: {
        !           349:        struct fms_softc *sc = addr;
        !           350:        int i;
        !           351:
        !           352:        /* Poll until codec is ready */
        !           353:        for (i = 0; i < TIMO && bus_space_read_2(sc->sc_iot, sc->sc_ioh,
        !           354:                 FM_CODEC_CMD) & FM_CODEC_CMD_BUSY; i++)
        !           355:                delay(1);
        !           356:        if (i >= TIMO) {
        !           357:                printf("fms: codec busy\n");
        !           358:                return 1;
        !           359:        }
        !           360:
        !           361:        /* Write data */
        !           362:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_DATA, val);
        !           363:        /* Write index register, write access */
        !           364:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD, reg);
        !           365:        return 0;
        !           366: }
        !           367: #undef TIMO
        !           368:
        !           369: int
        !           370: fms_attach_codec(addr, cif)
        !           371:        void *addr;
        !           372:        struct ac97_codec_if *cif;
        !           373: {
        !           374:        struct fms_softc *sc = addr;
        !           375:
        !           376:        sc->codec_if = cif;
        !           377:        return 0;
        !           378: }
        !           379:
        !           380: /* Cold Reset */
        !           381: void
        !           382: fms_reset_codec(addr)
        !           383:        void *addr;
        !           384: {
        !           385:        struct fms_softc *sc = addr;
        !           386:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0020);
        !           387:        delay(2);
        !           388:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0000);
        !           389:        delay(1);
        !           390: }
        !           391:
        !           392: int
        !           393: fms_intr(arg)
        !           394:        void *arg;
        !           395: {
        !           396:        struct fms_softc *sc = arg;
        !           397:        u_int16_t istat;
        !           398:
        !           399:        istat = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS);
        !           400:
        !           401:        if (istat & FM_INTSTATUS_PLAY) {
        !           402:                if ((sc->sc_play_nextblk += sc->sc_play_blksize) >=
        !           403:                     sc->sc_play_end)
        !           404:                        sc->sc_play_nextblk = sc->sc_play_start;
        !           405:
        !           406:                bus_space_write_4(sc->sc_iot, sc->sc_ioh,
        !           407:                    sc->sc_play_flip++ & 1 ?
        !           408:                    FM_PLAY_DMABUF2 : FM_PLAY_DMABUF1, sc->sc_play_nextblk);
        !           409:
        !           410:                if (sc->sc_pintr)
        !           411:                        sc->sc_pintr(sc->sc_parg);
        !           412:                else
        !           413:                        printf("unexpected play intr\n");
        !           414:        }
        !           415:
        !           416:        if (istat & FM_INTSTATUS_REC) {
        !           417:                if ((sc->sc_rec_nextblk += sc->sc_rec_blksize) >=
        !           418:                     sc->sc_rec_end)
        !           419:                        sc->sc_rec_nextblk = sc->sc_rec_start;
        !           420:
        !           421:                bus_space_write_4(sc->sc_iot, sc->sc_ioh,
        !           422:                    sc->sc_rec_flip++ & 1 ?
        !           423:                    FM_REC_DMABUF2 : FM_REC_DMABUF1, sc->sc_rec_nextblk);
        !           424:
        !           425:                if (sc->sc_rintr)
        !           426:                        sc->sc_rintr(sc->sc_rarg);
        !           427:                else
        !           428:                        printf("unexpected rec intr\n");
        !           429:        }
        !           430:
        !           431: #if 0
        !           432:        if (istat & FM_INTSTATUS_MPU)
        !           433:                mpu_intr(sc->sc_mpu_dev);
        !           434: #endif
        !           435:
        !           436:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS,
        !           437:                          istat & (FM_INTSTATUS_PLAY | FM_INTSTATUS_REC));
        !           438:
        !           439:        return 1;
        !           440: }
        !           441:
        !           442: int
        !           443: fms_open(addr, flags)
        !           444:        void *addr;
        !           445:        int flags;
        !           446: {
        !           447:        /* UNUSED struct fms_softc *sc = addr;*/
        !           448:
        !           449:        return 0;
        !           450: }
        !           451:
        !           452: void
        !           453: fms_close(addr)
        !           454:        void *addr;
        !           455: {
        !           456:        /* UNUSED struct fms_softc *sc = addr;*/
        !           457: }
        !           458:
        !           459: int
        !           460: fms_query_encoding(addr, fp)
        !           461:        void *addr;
        !           462:        struct audio_encoding *fp;
        !           463: {
        !           464:
        !           465:        switch (fp->index) {
        !           466:        case 0:
        !           467:                strlcpy(fp->name, AudioEmulaw, sizeof fp->name);
        !           468:                fp->encoding = AUDIO_ENCODING_ULAW;
        !           469:                fp->precision = 8;
        !           470:                fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
        !           471:                return 0;
        !           472:        case 1:
        !           473:                strlcpy(fp->name, AudioEslinear_le, sizeof fp->name);
        !           474:                fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
        !           475:                fp->precision = 16;
        !           476:                fp->flags = 0;
        !           477:                return 0;
        !           478:        case 2:
        !           479:                strlcpy(fp->name, AudioEulinear, sizeof fp->name);
        !           480:                fp->encoding = AUDIO_ENCODING_ULINEAR;
        !           481:                fp->precision = 8;
        !           482:                fp->flags = 0;
        !           483:                return 0;
        !           484:        case 3:
        !           485:                strlcpy(fp->name, AudioEalaw, sizeof fp->name);
        !           486:                fp->encoding = AUDIO_ENCODING_ALAW;
        !           487:                fp->precision = 8;
        !           488:                fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
        !           489:                return 0;
        !           490:        case 4:
        !           491:                strlcpy(fp->name, AudioEulinear_le, sizeof fp->name);
        !           492:                fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
        !           493:                fp->precision = 16;
        !           494:                fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
        !           495:                return 0;
        !           496:        case 5:
        !           497:                strlcpy(fp->name, AudioEslinear, sizeof fp->name);
        !           498:                fp->encoding = AUDIO_ENCODING_SLINEAR;
        !           499:                fp->precision = 8;
        !           500:                fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
        !           501:                return 0;
        !           502:        case 6:
        !           503:                strlcpy(fp->name, AudioEulinear_be, sizeof fp->name);
        !           504:                fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
        !           505:                fp->precision = 16;
        !           506:                fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
        !           507:                return 0;
        !           508:        case 7:
        !           509:                strlcpy(fp->name, AudioEslinear_be, sizeof fp->name);
        !           510:                fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
        !           511:                fp->precision = 16;
        !           512:                fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
        !           513:                return 0;
        !           514:        default:
        !           515:                return EINVAL;
        !           516:        }
        !           517: }
        !           518:
        !           519: /*
        !           520:  * Range below -limit- is set to -rate-
        !           521:  * What a pity FM801 does not have 24000
        !           522:  * 24000 -> 22050 sounds rather poor
        !           523:  */
        !           524: struct {
        !           525:        int limit;
        !           526:        int rate;
        !           527: } fms_rates[11] = {
        !           528:        {  6600,  5500 },
        !           529:        {  8750,  8000 },
        !           530:        { 10250,  9600 },
        !           531:        { 13200, 11025 },
        !           532:        { 17500, 16000 },
        !           533:        { 20500, 19200 },
        !           534:        { 26500, 22050 },
        !           535:        { 35000, 32000 },
        !           536:        { 41000, 38400 },
        !           537:        { 46000, 44100 },
        !           538:        { 48000, 48000 },
        !           539:        /* anything above -> 48000 */
        !           540: };
        !           541:
        !           542: int
        !           543: fms_set_params(addr, setmode, usemode, play, rec)
        !           544:        void *addr;
        !           545:        int setmode, usemode;
        !           546:        struct audio_params *play, *rec;
        !           547: {
        !           548:        struct fms_softc *sc = addr;
        !           549:        int i;
        !           550:
        !           551:        if (setmode & AUMODE_PLAY) {
        !           552:                play->factor = 1;
        !           553:                play->sw_code = 0;
        !           554:                switch(play->encoding) {
        !           555:                case AUDIO_ENCODING_ULAW:
        !           556:                        play->factor = 2;
        !           557:                        play->sw_code = mulaw_to_slinear16_le;
        !           558:                        break;
        !           559:                case AUDIO_ENCODING_SLINEAR_LE:
        !           560:                        if (play->precision == 8)
        !           561:                                play->sw_code = change_sign8;
        !           562:                        break;
        !           563:                case AUDIO_ENCODING_ULINEAR_LE:
        !           564:                        if (play->precision == 16)
        !           565:                                play->sw_code = change_sign16_le;
        !           566:                        break;
        !           567:                case AUDIO_ENCODING_ALAW:
        !           568:                        play->factor = 2;
        !           569:                        play->sw_code = alaw_to_slinear16_le;
        !           570:                        break;
        !           571:                case AUDIO_ENCODING_SLINEAR_BE:
        !           572:                        if (play->precision == 16)
        !           573:                                play->sw_code = swap_bytes;
        !           574:                        else
        !           575:                                play->sw_code = change_sign8;
        !           576:                        break;
        !           577:                case AUDIO_ENCODING_ULINEAR_BE:
        !           578:                        if (play->precision == 16)
        !           579:                                play->sw_code = change_sign16_swap_bytes_le;
        !           580:                        break;
        !           581:                default:
        !           582:                        return EINVAL;
        !           583:                }
        !           584:                for (i = 0; i < 10 && play->sample_rate > fms_rates[i].limit;
        !           585:                     i++)
        !           586:                        ;
        !           587:                play->sample_rate = fms_rates[i].rate;
        !           588:                sc->sc_play_reg = (play->channels == 2 ? FM_PLAY_STEREO : 0) |
        !           589:                    (play->precision * play->factor == 16 ? FM_PLAY_16BIT : 0) |
        !           590:                    (i << 8);
        !           591:        }
        !           592:
        !           593:        if (setmode & AUMODE_RECORD) {
        !           594:
        !           595:                rec->factor = 1;
        !           596:                rec->sw_code = 0;
        !           597:                switch(rec->encoding) {
        !           598:                case AUDIO_ENCODING_ULAW:
        !           599:                        rec->sw_code = ulinear8_to_mulaw;
        !           600:                        break;
        !           601:                case AUDIO_ENCODING_SLINEAR_LE:
        !           602:                        if (rec->precision == 8)
        !           603:                                rec->sw_code = change_sign8;
        !           604:                        break;
        !           605:                case AUDIO_ENCODING_ULINEAR_LE:
        !           606:                        if (rec->precision == 16)
        !           607:                                rec->sw_code = change_sign16_le;
        !           608:                        break;
        !           609:                case AUDIO_ENCODING_ALAW:
        !           610:                        rec->sw_code = ulinear8_to_alaw;
        !           611:                        break;
        !           612:                case AUDIO_ENCODING_SLINEAR_BE:
        !           613:                        if (play->precision == 16)
        !           614:                                play->sw_code = swap_bytes;
        !           615:                        else
        !           616:                                play->sw_code = change_sign8;
        !           617:                        break;
        !           618:                case AUDIO_ENCODING_ULINEAR_BE:
        !           619:                        if (play->precision == 16)
        !           620:                                play->sw_code = swap_bytes_change_sign16_le;
        !           621:                        break;
        !           622:                default:
        !           623:                        return EINVAL;
        !           624:                }
        !           625:                for (i = 0; i < 10 && rec->sample_rate > fms_rates[i].limit;
        !           626:                     i++)
        !           627:                        ;
        !           628:                rec->sample_rate = fms_rates[i].rate;
        !           629:                sc->sc_rec_reg =
        !           630:                    (rec->channels == 2 ? FM_REC_STEREO : 0) |
        !           631:                    (rec->precision * rec->factor == 16 ? FM_REC_16BIT : 0) |
        !           632:                    (i << 8);
        !           633:        }
        !           634:
        !           635:        return 0;
        !           636: }
        !           637:
        !           638: int
        !           639: fms_round_blocksize(addr, blk)
        !           640:        void *addr;
        !           641:        int blk;
        !           642: {
        !           643:        return (blk + 0xf) & ~0xf;
        !           644: }
        !           645:
        !           646: int
        !           647: fms_halt_output(addr)
        !           648:        void *addr;
        !           649: {
        !           650:        struct fms_softc *sc = addr;
        !           651:        u_int16_t k1;
        !           652:
        !           653:        k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL);
        !           654:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL,
        !           655:                          (k1 & ~(FM_PLAY_STOPNOW | FM_PLAY_START)) |
        !           656:                          FM_PLAY_BUF1_LAST | FM_PLAY_BUF2_LAST);
        !           657:
        !           658:        return 0;
        !           659: }
        !           660:
        !           661: int
        !           662: fms_halt_input(addr)
        !           663:        void *addr;
        !           664: {
        !           665:        struct fms_softc *sc = addr;
        !           666:        u_int16_t k1;
        !           667:
        !           668:        k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL);
        !           669:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL,
        !           670:                          (k1 & ~(FM_REC_STOPNOW | FM_REC_START)) |
        !           671:                          FM_REC_BUF1_LAST | FM_REC_BUF2_LAST);
        !           672:
        !           673:        return 0;
        !           674: }
        !           675:
        !           676: int
        !           677: fms_getdev(addr, retp)
        !           678:        void *addr;
        !           679:        struct audio_device *retp;
        !           680: {
        !           681:        *retp = fms_device;
        !           682:        return 0;
        !           683: }
        !           684:
        !           685: int
        !           686: fms_set_port(addr, cp)
        !           687:        void *addr;
        !           688:        mixer_ctrl_t *cp;
        !           689: {
        !           690:        struct fms_softc *sc = addr;
        !           691:
        !           692:        return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp));
        !           693: }
        !           694:
        !           695: int
        !           696: fms_get_port(addr, cp)
        !           697:        void *addr;
        !           698:        mixer_ctrl_t *cp;
        !           699: {
        !           700:        struct fms_softc *sc = addr;
        !           701:
        !           702:        return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp));
        !           703: }
        !           704:
        !           705: void *
        !           706: fms_malloc(addr, direction, size, pool, flags)
        !           707:        void *addr;
        !           708:        int direction;
        !           709:        size_t size;
        !           710:        int pool, flags;
        !           711: {
        !           712:        struct fms_softc *sc = addr;
        !           713:        struct fms_dma *p;
        !           714:        int error;
        !           715:        int rseg;
        !           716:
        !           717:        p = malloc(sizeof(*p), pool, flags);
        !           718:        if (!p)
        !           719:                return 0;
        !           720:
        !           721:        p->size = size;
        !           722:        if ((error = bus_dmamem_alloc(sc->sc_dmat, size, NBPG, 0, &p->seg, 1,
        !           723:                                      &rseg, BUS_DMA_NOWAIT)) != 0) {
        !           724:                printf("%s: unable to allocate dma, error = %d\n",
        !           725:                       sc->sc_dev.dv_xname, error);
        !           726:                goto fail_alloc;
        !           727:        }
        !           728:
        !           729:        if ((error = bus_dmamem_map(sc->sc_dmat, &p->seg, rseg, size, &p->addr,
        !           730:                                    BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
        !           731:                printf("%s: unable to map dma, error = %d\n",
        !           732:                       sc->sc_dev.dv_xname, error);
        !           733:                goto fail_map;
        !           734:        }
        !           735:
        !           736:        if ((error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
        !           737:                                       BUS_DMA_NOWAIT, &p->map)) != 0) {
        !           738:                printf("%s: unable to create dma map, error = %d\n",
        !           739:                       sc->sc_dev.dv_xname, error);
        !           740:                goto fail_create;
        !           741:        }
        !           742:
        !           743:        if ((error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, size, NULL,
        !           744:                                     BUS_DMA_NOWAIT)) != 0) {
        !           745:                printf("%s: unable to load dma map, error = %d\n",
        !           746:                       sc->sc_dev.dv_xname, error);
        !           747:                goto fail_load;
        !           748:        }
        !           749:
        !           750:        p->next = sc->sc_dmas;
        !           751:        sc->sc_dmas = p;
        !           752:
        !           753:        return p->addr;
        !           754:
        !           755:
        !           756: fail_load:
        !           757:        bus_dmamap_destroy(sc->sc_dmat, p->map);
        !           758: fail_create:
        !           759:        bus_dmamem_unmap(sc->sc_dmat, p->addr, size);
        !           760: fail_map:
        !           761:        bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
        !           762: fail_alloc:
        !           763:        free(p, pool);
        !           764:        return 0;
        !           765: }
        !           766:
        !           767: void
        !           768: fms_free(addr, ptr, pool)
        !           769:        void *addr;
        !           770:        void *ptr;
        !           771:        int pool;
        !           772: {
        !           773:        struct fms_softc *sc = addr;
        !           774:        struct fms_dma **pp, *p;
        !           775:
        !           776:        for (pp = &(sc->sc_dmas); (p = *pp) != NULL; pp = &p->next)
        !           777:                if (p->addr == ptr) {
        !           778:                        bus_dmamap_unload(sc->sc_dmat, p->map);
        !           779:                        bus_dmamap_destroy(sc->sc_dmat, p->map);
        !           780:                        bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
        !           781:                        bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
        !           782:
        !           783:                        *pp = p->next;
        !           784:                        free(p, pool);
        !           785:                        return;
        !           786:                }
        !           787:
        !           788:        panic("fms_free: trying to free unallocated memory");
        !           789: }
        !           790:
        !           791: paddr_t
        !           792: fms_mappage(addr, mem, off, prot)
        !           793:        void *addr;
        !           794:        void *mem;
        !           795:        off_t off;
        !           796:        int prot;
        !           797: {
        !           798:        struct fms_softc *sc = addr;
        !           799:        struct fms_dma *p;
        !           800:
        !           801:        if (off < 0)
        !           802:                return -1;
        !           803:
        !           804:        for (p = sc->sc_dmas; p && p->addr != mem; p = p->next)
        !           805:                ;
        !           806:        if (!p)
        !           807:                return -1;
        !           808:
        !           809:        return bus_dmamem_mmap(sc->sc_dmat, &p->seg, 1, off, prot,
        !           810:                               BUS_DMA_WAITOK);
        !           811: }
        !           812:
        !           813: int
        !           814: fms_get_props(addr)
        !           815:        void *addr;
        !           816: {
        !           817:        return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
        !           818:               AUDIO_PROP_FULLDUPLEX;
        !           819: }
        !           820:
        !           821: int
        !           822: fms_query_devinfo(addr, dip)
        !           823:        void *addr;
        !           824:        mixer_devinfo_t *dip;
        !           825: {
        !           826:        struct fms_softc *sc = addr;
        !           827:
        !           828:        return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip));
        !           829: }
        !           830:
        !           831: int
        !           832: fms_trigger_output(addr, start, end, blksize, intr, arg, param)
        !           833:        void *addr;
        !           834:        void *start, *end;
        !           835:        int blksize;
        !           836:        void (*intr)(void *);
        !           837:        void *arg;
        !           838:        struct audio_params *param;
        !           839: {
        !           840:        struct fms_softc *sc = addr;
        !           841:        struct fms_dma *p;
        !           842:
        !           843:        sc->sc_pintr = intr;
        !           844:        sc->sc_parg = arg;
        !           845:
        !           846:        for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
        !           847:                ;
        !           848:
        !           849:        if (!p)
        !           850:                panic("fms_trigger_output: request with bad start "
        !           851:                      "address (%p)", start);
        !           852:
        !           853:        sc->sc_play_start = p->map->dm_segs[0].ds_addr;
        !           854:        sc->sc_play_end = sc->sc_play_start + ((char *)end - (char *)start);
        !           855:        sc->sc_play_blksize = blksize;
        !           856:        sc->sc_play_nextblk = sc->sc_play_start + sc->sc_play_blksize;
        !           857:        sc->sc_play_flip = 0;
        !           858:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMALEN, blksize - 1);
        !           859:        bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMABUF1,
        !           860:                          sc->sc_play_start);
        !           861:        bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMABUF2,
        !           862:                          sc->sc_play_nextblk);
        !           863:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL,
        !           864:                          FM_PLAY_START | FM_PLAY_STOPNOW | sc->sc_play_reg);
        !           865:        return 0;
        !           866: }
        !           867:
        !           868:
        !           869: int
        !           870: fms_trigger_input(addr, start, end, blksize, intr, arg, param)
        !           871:        void *addr;
        !           872:        void *start, *end;
        !           873:        int blksize;
        !           874:        void (*intr)(void *);
        !           875:        void *arg;
        !           876:        struct audio_params *param;
        !           877: {
        !           878:        struct fms_softc *sc = addr;
        !           879:        struct fms_dma *p;
        !           880:
        !           881:        sc->sc_rintr = intr;
        !           882:        sc->sc_rarg = arg;
        !           883:
        !           884:        for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
        !           885:                ;
        !           886:
        !           887:        if (!p)
        !           888:                panic("fms_trigger_input: request with bad start "
        !           889:                      "address (%p)", start);
        !           890:
        !           891:        sc->sc_rec_start = p->map->dm_segs[0].ds_addr;
        !           892:        sc->sc_rec_end = sc->sc_rec_start + ((char *)end - (char *)start);
        !           893:        sc->sc_rec_blksize = blksize;
        !           894:        sc->sc_rec_nextblk = sc->sc_rec_start + sc->sc_rec_blksize;
        !           895:        sc->sc_rec_flip = 0;
        !           896:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_DMALEN, blksize - 1);
        !           897:        bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_REC_DMABUF1,
        !           898:                          sc->sc_rec_start);
        !           899:        bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_REC_DMABUF2,
        !           900:                          sc->sc_rec_nextblk);
        !           901:        bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL,
        !           902:                          FM_REC_START | FM_REC_STOPNOW | sc->sc_rec_reg);
        !           903:        return 0;
        !           904: }
        !           905:
        !           906:

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