int nmchan_getptr(struct neo_softc *sc, int mode) { if (mode == AUMODE_PLAY) return (nm_rd(sc, NM_PBUFFER_CURRP, 4) - sc->pbuf); else return (nm_rd(sc, NM_RBUFFER_CURRP, 4) - sc->rbuf); }
static u_int32_t nmchan_getptr(kobj_t obj, void *data) { struct sc_chinfo *ch = data; struct sc_info *sc = ch->parent; if (ch->dir == PCMDIR_PLAY) return nm_rd(sc, NM_PBUFFER_CURRP, 4) - sc->pbuf; else return nm_rd(sc, NM_RBUFFER_CURRP, 4) - sc->rbuf; }
/* ac97 codec */ static int nm_waitcd(struct sc_info *sc) { int cnt = 10; while (cnt-- > 0) { if (nm_rd(sc, sc->ac97_status, 2) & sc->ac97_busy) DELAY(100); else break; } return (nm_rd(sc, sc->ac97_status, 2) & sc->ac97_busy); }
/* The interrupt handler */ static void nm_intr(void *p) { struct sc_info *sc = (struct sc_info *)p; int status, x; status = nm_rd(sc, NM_INT_REG, sc->irsz); if (status == 0) return; if (status & sc->playint) { status &= ~sc->playint; sc->pch.wmark += sc->pch.blksize; sc->pch.wmark %= NM_BUFFSIZE; nm_wr(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pch.wmark, 4); nm_ackint(sc, sc->playint); chn_intr(sc->pch.channel); } if (status & sc->recint) { status &= ~sc->recint; sc->rch.wmark += sc->rch.blksize; sc->rch.wmark %= NM_BUFFSIZE; nm_wr(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rch.wmark, 4); nm_ackint(sc, sc->recint); chn_intr(sc->rch.channel); } if (status & sc->misc1int) { status &= ~sc->misc1int; nm_ackint(sc, sc->misc1int); x = nm_rd(sc, 0x400, 1); nm_wr(sc, 0x400, x | 2, 1); device_printf(sc->dev, "misc int 1\n"); } if (status & sc->misc2int) { status &= ~sc->misc2int; nm_ackint(sc, sc->misc2int); x = nm_rd(sc, 0x400, 1); nm_wr(sc, 0x400, x & ~2, 1); device_printf(sc->dev, "misc int 2\n"); } if (status) { nm_ackint(sc, status); device_printf(sc->dev, "unknown int\n"); } }
/* The interrupt handler */ static void nm_intr(void *p) { struct sc_info *sc = (struct sc_info *)p; int status, x, active; active = (sc->pch.channel->buffer.dl || sc->rch.channel->buffer.dl); status = nm_rd(sc, NM_INT_REG, sc->irsz); if (status == 0 && active) { if (sc->badintr++ > 1000) { device_printf(sc->dev, "1000 bad intrs\n"); sc->badintr = 0; } return; } sc->badintr = 0; if (status & sc->playint) { status &= ~sc->playint; nm_ackint(sc, sc->playint); chn_intr(sc->pch.channel); } if (status & sc->recint) { status &= ~sc->recint; nm_ackint(sc, sc->recint); chn_intr(sc->rch.channel); } if (status & sc->misc1int) { status &= ~sc->misc1int; nm_ackint(sc, sc->misc1int); x = nm_rd(sc, 0x400, 1); nm_wr(sc, 0x400, x | 2, 1); device_printf(sc->dev, "misc int 1\n"); } if (status & sc->misc2int) { status &= ~sc->misc2int; nm_ackint(sc, sc->misc2int); x = nm_rd(sc, 0x400, 1); nm_wr(sc, 0x400, x & ~2, 1); device_printf(sc->dev, "misc int 2\n"); } if (status) { status &= ~sc->misc2int; nm_ackint(sc, sc->misc2int); device_printf(sc->dev, "unknown int\n"); } }
static int nm_init(struct sc_info *sc) { u_int32_t ofs, i; if (sc->type == NM256AV_PCI_ID) { sc->ac97_base = NM_MIXER_OFFSET; sc->ac97_status = NM_MIXER_STATUS_OFFSET; sc->ac97_busy = NM_MIXER_READY_MASK; sc->buftop = 2560 * 1024; sc->irsz = 2; sc->playint = NM_PLAYBACK_INT; sc->recint = NM_RECORD_INT; sc->misc1int = NM_MISC_INT_1; sc->misc2int = NM_MISC_INT_2; } else if (sc->type == NM256ZX_PCI_ID) { sc->ac97_base = NM_MIXER_OFFSET; sc->ac97_status = NM2_MIXER_STATUS_OFFSET; sc->ac97_busy = NM2_MIXER_READY_MASK; sc->buftop = (nm_rd(sc, 0xa0b, 2)? 6144 : 4096) * 1024; sc->irsz = 4; sc->playint = NM2_PLAYBACK_INT; sc->recint = NM2_RECORD_INT; sc->misc1int = NM2_MISC_INT_1; sc->misc2int = NM2_MISC_INT_2; } else return -1; sc->badintr = 0; ofs = sc->buftop - 0x0400; sc->buftop -= 0x1400; if (bootverbose) device_printf(sc->dev, "buftop is 0x%08x\n", sc->buftop); if ((nm_rdbuf(sc, ofs, 4) & NM_SIG_MASK) == NM_SIGNATURE) { i = nm_rdbuf(sc, ofs + 4, 4); if (i != 0 && i != 0xffffffff) { if (bootverbose) device_printf(sc->dev, "buftop is changed to 0x%08x\n", i); sc->buftop = i; } } sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; sc->rbuf = sc->cbuf - NM_BUFFSIZE; sc->pbuf = sc->rbuf - NM_BUFFSIZE; sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); nm_wr(sc, 0, 0x11, 1); nm_wr(sc, NM_RECORD_ENABLE_REG, 0, 1); nm_wr(sc, 0x214, 0, 2); return 0; }
int neo_read_codec(void *sc_, u_int8_t a, u_int16_t *d) { struct neo_softc *sc = sc_; if (!nm_waitcd(sc)) { *d = nm_rd(sc, sc->ac97_base + a, 2); DELAY(1000); return 0; } return (ENXIO); }
static int nm_rdcd(kobj_t obj, void *devinfo, int regno) { struct sc_info *sc = (struct sc_info *)devinfo; u_int32_t x; if (!nm_waitcd(sc)) { x = nm_rd(sc, sc->ac97_base + regno, 2); DELAY(1000); return x; } else { device_printf(sc->dev, "ac97 codec not ready\n"); return -1; } }
/* ac97 codec */ static int nm_waitcd(struct sc_info *sc) { int cnt = 10; int fail = 1; while (cnt-- > 0) { if (nm_rd(sc, sc->ac97_status, 2) & sc->ac97_busy) { DELAY(100); } else { fail = 0; break; } } return (fail); }
static int nm_pci_probe(device_t dev) { struct sc_info *sc = NULL; char *s = NULL; u_int32_t subdev, i; subdev = (pci_get_subdevice(dev) << 16) | pci_get_subvendor(dev); switch (pci_get_devid(dev)) { case NM256AV_PCI_ID: i = 0; while ((i < NUM_BADCARDS) && (badcards[i] != subdev)) i++; /* Try to catch other non-ac97 cards */ if (i == NUM_BADCARDS) { if (!(sc = malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT | M_ZERO))) { device_printf(dev, "cannot allocate softc\n"); return ENXIO; } sc->regid = PCIR_BAR(1); sc->reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->regid, RF_ACTIVE); if (!sc->reg) { device_printf(dev, "unable to map register space\n"); free(sc, M_DEVBUF); return ENXIO; } /* * My Panasonic CF-M2EV needs resetting device * before checking mixer is present or not. * [email protected]. */ nm_wr(sc, 0, 0x11, 1); /* reset device */ if ((nm_rd(sc, NM_MIXER_PRESENCE, 2) & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) { i = 0; /* non-ac97 card, but not listed */ DEB(device_printf(dev, "subdev = 0x%x - badcard?\n", subdev)); } bus_release_resource(dev, SYS_RES_MEMORY, sc->regid, sc->reg); free(sc, M_DEVBUF); } if (i == NUM_BADCARDS) s = "NeoMagic 256AV"; DEB(else) DEB(device_printf(dev, "this is a non-ac97 NM256AV, not attaching\n")); break; case NM256ZX_PCI_ID: s = "NeoMagic 256ZX"; break; } if (s) device_set_desc(dev, s); return s? 0 : ENXIO; }
/* The interrupt handler */ int neo_intr(void *p) { struct neo_softc *sc = (struct neo_softc *)p; int status, x; int rv = 0; mtx_enter(&audio_lock); status = nm_rd(sc, NM_INT_REG, sc->irsz); if (status & sc->playint) { status &= ~sc->playint; sc->pwmark += sc->pblksize; sc->pwmark %= sc->pbufsize; nm_wr(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark, 4); nm_ackint(sc, sc->playint); if (sc->pintr) (*sc->pintr)(sc->parg); rv = 1; } if (status & sc->recint) { status &= ~sc->recint; sc->rwmark += sc->rblksize; sc->rwmark %= sc->rbufsize; nm_ackint(sc, sc->recint); if (sc->rintr) (*sc->rintr)(sc->rarg); rv = 1; } if (status & sc->misc1int) { status &= ~sc->misc1int; nm_ackint(sc, sc->misc1int); x = nm_rd(sc, 0x400, 1); nm_wr(sc, 0x400, x | 2, 1); printf("%s: misc int 1\n", sc->dev.dv_xname); rv = 1; } if (status & sc->misc2int) { status &= ~sc->misc2int; nm_ackint(sc, sc->misc2int); x = nm_rd(sc, 0x400, 1); nm_wr(sc, 0x400, x & ~2, 1); printf("%s: misc int 2\n", sc->dev.dv_xname); rv = 1; } if (status) { status &= ~sc->misc2int; nm_ackint(sc, sc->misc2int); printf("%s: unknown int\n", sc->dev.dv_xname); rv = 1; } mtx_leave(&audio_lock); return (rv); }