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);
}
