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freebsd-nq/sys/dev/sound/pci/aureal.c
Ariff Abdullah bdfbdcec6a Filter/compress the amount of channel trigger. This should reduce 
much of lock/unlock contentions within the interrupt handler. Most
of these drivers only need PCMTRIG_START or STOP (ABORT).

Discussed with:		scottl
2007-06-11 00:49:46 +00:00

689 lines
17 KiB
C
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/*-
* Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
* 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.
*/
#include <dev/sound/pcm/sound.h>
#include <dev/sound/pcm/ac97.h>
#include <dev/sound/pci/aureal.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
SND_DECLARE_FILE("$FreeBSD$");
/* PCI IDs of supported chips */
#define AU8820_PCI_ID 0x000112eb
/* channel interface */
static u_int32_t au_playfmt[] = {
AFMT_U8,
AFMT_STEREO | AFMT_U8,
AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE,
0
};
static struct pcmchan_caps au_playcaps = {4000, 48000, au_playfmt, 0};
static u_int32_t au_recfmt[] = {
AFMT_U8,
AFMT_STEREO | AFMT_U8,
AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE,
0
};
static struct pcmchan_caps au_reccaps = {4000, 48000, au_recfmt, 0};
/* -------------------------------------------------------------------- */
struct au_info;
struct au_chinfo {
struct au_info *parent;
struct pcm_channel *channel;
struct snd_dbuf *buffer;
int dir;
};
struct au_info {
int unit;
bus_space_tag_t st[3];
bus_space_handle_t sh[3];
bus_dma_tag_t parent_dmat;
struct mtx *lock;
u_int32_t x[32], y[128];
char z[128];
u_int32_t routes[4], interrupts;
struct au_chinfo pch;
};
static int au_init(device_t dev, struct au_info *au);
static void au_intr(void *);
/* -------------------------------------------------------------------- */
static u_int32_t
au_rd(struct au_info *au, int mapno, int regno, int size)
{
switch(size) {
case 1:
return bus_space_read_1(au->st[mapno], au->sh[mapno], regno);
case 2:
return bus_space_read_2(au->st[mapno], au->sh[mapno], regno);
case 4:
return bus_space_read_4(au->st[mapno], au->sh[mapno], regno);
default:
return 0xffffffff;
}
}
static void
au_wr(struct au_info *au, int mapno, int regno, u_int32_t data, int size)
{
switch(size) {
case 1:
bus_space_write_1(au->st[mapno], au->sh[mapno], regno, data);
break;
case 2:
bus_space_write_2(au->st[mapno], au->sh[mapno], regno, data);
break;
case 4:
bus_space_write_4(au->st[mapno], au->sh[mapno], regno, data);
break;
}
}
/* -------------------------------------------------------------------- */
static int
au_rdcd(kobj_t obj, void *arg, int regno)
{
struct au_info *au = (struct au_info *)arg;
int i=0, j=0;
regno<<=16;
au_wr(au, 0, AU_REG_CODECIO, regno, 4);
while (j<50) {
i=au_rd(au, 0, AU_REG_CODECIO, 4);
if ((i & 0x00ff0000) == (regno | 0x00800000)) break;
DELAY(j * 200 + 2000);
j++;
}
if (j==50) printf("pcm%d: codec timeout reading register %x (%x)\n",
au->unit, (regno & AU_CDC_REGMASK)>>16, i);
return i & AU_CDC_DATAMASK;
}
static int
au_wrcd(kobj_t obj, void *arg, int regno, u_int32_t data)
{
struct au_info *au = (struct au_info *)arg;
int i, j, tries;
i=j=tries=0;
do {
while (j<50 && (i & AU_CDC_WROK) == 0) {
i=au_rd(au, 0, AU_REG_CODECST, 4);
DELAY(2000);
j++;
}
if (j==50) printf("codec timeout during write of register %x, data %x\n",
regno, data);
au_wr(au, 0, AU_REG_CODECIO, (regno<<16) | AU_CDC_REGSET | data, 4);
/* DELAY(20000);
i=au_rdcd(au, regno);
*/ tries++;
} while (0); /* (i != data && tries < 3); */
/*
if (tries == 3) printf("giving up writing 0x%4x to codec reg %2x\n", data, regno);
*/
return 0;
}
static kobj_method_t au_ac97_methods[] = {
KOBJMETHOD(ac97_read, au_rdcd),
KOBJMETHOD(ac97_write, au_wrcd),
{ 0, 0 }
};
AC97_DECLARE(au_ac97);
/* -------------------------------------------------------------------- */
static void
au_setbit(u_int32_t *p, char bit, u_int32_t value)
{
p += bit >> 5;
bit &= 0x1f;
*p &= ~ (1 << bit);
*p |= (value << bit);
}
static void
au_addroute(struct au_info *au, int a, int b, int route)
{
int j = 0x1099c+(a<<2);
if (au->x[a] != a+0x67) j = AU_REG_RTBASE+(au->x[a]<<2);
au_wr(au, 0, AU_REG_RTBASE+(route<<2), 0xffffffff, 4);
au_wr(au, 0, j, route | (b<<7), 4);
au->y[route]=au->x[a];
au->x[a]=route;
au->z[route]=a & 0x000000ff;
au_setbit(au->routes, route, 1);
}
static void
au_delroute(struct au_info *au, int route)
{
int i;
int j=au->z[route];
au_setbit(au->routes, route, 0);
au->z[route]=0x1f;
i=au_rd(au, 0, AU_REG_RTBASE+(route<<2), 4);
au_wr(au, 0, AU_REG_RTBASE+(au->y[route]<<2), i, 4);
au->y[i & 0x7f]=au->y[route];
au_wr(au, 0, AU_REG_RTBASE+(route<<2), 0xfffffffe, 4);
if (au->x[j] == route) au->x[j]=au->y[route];
au->y[route]=0x7f;
}
static void
au_encodec(struct au_info *au, char channel)
{
au_wr(au, 0, AU_REG_CODECEN,
au_rd(au, 0, AU_REG_CODECEN, 4) | (1 << (channel + 8)), 4);
}
static void
au_clrfifo(struct au_info *au, u_int32_t c)
{
u_int32_t i;
for (i=0; i<32; i++) au_wr(au, 0, AU_REG_FIFOBASE+(c<<7)+(i<<2), 0, 4);
}
static void
au_setadb(struct au_info *au, u_int32_t c, u_int32_t enable)
{
int x;
x = au_rd(au, 0, AU_REG_ADB, 4);
x &= ~(1 << c);
x |= (enable << c);
au_wr(au, 0, AU_REG_ADB, x, 4);
}
static void
au_prepareoutput(struct au_chinfo *ch, u_int32_t format)
{
struct au_info *au = ch->parent;
int i, stereo = (format & AFMT_STEREO)? 1 : 0;
u_int32_t baseaddr = sndbuf_getbufaddr(ch->buffer);
au_wr(au, 0, 0x1061c, 0, 4);
au_wr(au, 0, 0x10620, 0, 4);
au_wr(au, 0, 0x10624, 0, 4);
switch(format & ~AFMT_STEREO) {
case 1:
i=0xb000;
break;
case 2:
i=0xf000;
break;
case 8:
i=0x7000;
break;
case 16:
i=0x23000;
break;
default:
i=0x3000;
}
au_wr(au, 0, 0x10200, baseaddr, 4);
au_wr(au, 0, 0x10204, baseaddr+0x1000, 4);
au_wr(au, 0, 0x10208, baseaddr+0x2000, 4);
au_wr(au, 0, 0x1020c, baseaddr+0x3000, 4);
au_wr(au, 0, 0x10400, 0xdeffffff, 4);
au_wr(au, 0, 0x10404, 0xfcffffff, 4);
au_wr(au, 0, 0x10580, i, 4);
au_wr(au, 0, 0x10210, baseaddr, 4);
au_wr(au, 0, 0x10214, baseaddr+0x1000, 4);
au_wr(au, 0, 0x10218, baseaddr+0x2000, 4);
au_wr(au, 0, 0x1021c, baseaddr+0x3000, 4);
au_wr(au, 0, 0x10408, 0x00fff000 | 0x56000000 | 0x00000fff, 4);
au_wr(au, 0, 0x1040c, 0x00fff000 | 0x74000000 | 0x00000fff, 4);
au_wr(au, 0, 0x10584, i, 4);
au_wr(au, 0, 0x0f800, stereo? 0x00030032 : 0x00030030, 4);
au_wr(au, 0, 0x0f804, stereo? 0x00030032 : 0x00030030, 4);
au_addroute(au, 0x11, 0, 0x58);
au_addroute(au, 0x11, stereo? 0 : 1, 0x59);
}
/* -------------------------------------------------------------------- */
/* channel interface */
static void *
auchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
{
struct au_info *au = devinfo;
struct au_chinfo *ch = (dir == PCMDIR_PLAY)? &au->pch : NULL;
ch->parent = au;
ch->channel = c;
ch->buffer = b;
ch->dir = dir;
if (sndbuf_alloc(ch->buffer, au->parent_dmat, 0, AU_BUFFSIZE) != 0)
return NULL;
return ch;
}
static int
auchan_setformat(kobj_t obj, void *data, u_int32_t format)
{
struct au_chinfo *ch = data;
if (ch->dir == PCMDIR_PLAY) au_prepareoutput(ch, format);
return 0;
}
static int
auchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
struct au_chinfo *ch = data;
if (ch->dir == PCMDIR_PLAY) {
} else {
}
return speed;
}
static int
auchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
return blocksize;
}
static int
auchan_trigger(kobj_t obj, void *data, int go)
{
struct au_chinfo *ch = data;
struct au_info *au = ch->parent;
if (!PCMTRIG_COMMON(go))
return 0;
if (ch->dir == PCMDIR_PLAY) {
au_setadb(au, 0x11, (go)? 1 : 0);
if (go != PCMTRIG_START) {
au_wr(au, 0, 0xf800, 0, 4);
au_wr(au, 0, 0xf804, 0, 4);
au_delroute(au, 0x58);
au_delroute(au, 0x59);
}
} else {
}
return 0;
}
static int
auchan_getptr(kobj_t obj, void *data)
{
struct au_chinfo *ch = data;
struct au_info *au = ch->parent;
if (ch->dir == PCMDIR_PLAY) {
return au_rd(au, 0, AU_REG_UNK2, 4) & (AU_BUFFSIZE-1);
} else {
return 0;
}
}
static struct pcmchan_caps *
auchan_getcaps(kobj_t obj, void *data)
{
struct au_chinfo *ch = data;
return (ch->dir == PCMDIR_PLAY)? &au_playcaps : &au_reccaps;
}
static kobj_method_t auchan_methods[] = {
KOBJMETHOD(channel_init, auchan_init),
KOBJMETHOD(channel_setformat, auchan_setformat),
KOBJMETHOD(channel_setspeed, auchan_setspeed),
KOBJMETHOD(channel_setblocksize, auchan_setblocksize),
KOBJMETHOD(channel_trigger, auchan_trigger),
KOBJMETHOD(channel_getptr, auchan_getptr),
KOBJMETHOD(channel_getcaps, auchan_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(auchan);
/* -------------------------------------------------------------------- */
/* The interrupt handler */
static void
au_intr (void *p)
{
struct au_info *au = p;
u_int32_t intsrc, i;
au->interrupts++;
intsrc=au_rd(au, 0, AU_REG_IRQSRC, 4);
printf("pcm%d: interrupt with src %x\n", au->unit, intsrc);
if (intsrc & AU_IRQ_FATAL) printf("pcm%d: fatal error irq\n", au->unit);
if (intsrc & AU_IRQ_PARITY) printf("pcm%d: parity error irq\n", au->unit);
if (intsrc & AU_IRQ_UNKNOWN) {
(void)au_rd(au, 0, AU_REG_UNK1, 4);
au_wr(au, 0, AU_REG_UNK1, 0, 4);
au_wr(au, 0, AU_REG_UNK1, 0x10000, 4);
}
if (intsrc & AU_IRQ_PCMOUT) {
i=au_rd(au, 0, AU_REG_UNK2, 4) & (AU_BUFFSIZE-1);
chn_intr(au->pch.channel);
(void)au_rd(au, 0, AU_REG_UNK3, 4);
(void)au_rd(au, 0, AU_REG_UNK4, 4);
(void)au_rd(au, 0, AU_REG_UNK5, 4);
}
/* don't support midi
if (intsrc & AU_IRQ_MIDI) {
i=au_rd(au, 0, 0x11004, 4);
j=10;
while (i & 0xff) {
if (j-- <= 0) break;
i=au_rd(au, 0, 0x11000, 4);
if ((au->midi_stat & 1) && (au->midi_out))
au->midi_out(au->midi_devno, i);
i=au_rd(au, 0, 0x11004);
}
}
*/
au_wr(au, 0, AU_REG_IRQSRC, intsrc & 0x7ff, 4);
au_rd(au, 0, AU_REG_IRQSRC, 4);
}
/* -------------------------------------------------------------------- */
/* Probe and attach the card */
static int
au_init(device_t dev, struct au_info *au)
{
u_int32_t i, j;
au_wr(au, 0, AU_REG_IRQGLOB, 0xffffffff, 4);
DELAY(100000);
/* init codec */
/* cold reset */
for (i=0; i<32; i++) {
au_wr(au, 0, AU_REG_CODECCHN+(i<<2), 0, 4);
DELAY(10000);
}
if (1) {
au_wr(au, 0, AU_REG_CODECST, 0x8068, 4);
DELAY(10000);
au_wr(au, 0, AU_REG_CODECST, 0x00e8, 4);
DELAY(10000);
} else {
au_wr(au, 0, AU_REG_CODECST, 0x00a8, 4);
DELAY(100000);
au_wr(au, 0, AU_REG_CODECST, 0x80a8, 4);
DELAY(100000);
au_wr(au, 0, AU_REG_CODECST, 0x80e8, 4);
DELAY(100000);
au_wr(au, 0, AU_REG_CODECST, 0x80a8, 4);
DELAY(100000);
au_wr(au, 0, AU_REG_CODECST, 0x00a8, 4);
DELAY(100000);
au_wr(au, 0, AU_REG_CODECST, 0x00e8, 4);
DELAY(100000);
}
/* init */
for (i=0; i<32; i++) {
au_wr(au, 0, AU_REG_CODECCHN+(i<<2), 0, 4);
DELAY(10000);
}
au_wr(au, 0, AU_REG_CODECST, 0xe8, 4);
DELAY(10000);
au_wr(au, 0, AU_REG_CODECEN, 0, 4);
/* setup codec */
i=j=0;
while (j<100 && (i & AU_CDC_READY)==0) {
i=au_rd(au, 0, AU_REG_CODECST, 4);
DELAY(1000);
j++;
}
if (j==100) device_printf(dev, "codec not ready, status 0x%x\n", i);
/* init adb */
/*au->x5c=0;*/
for (i=0; i<32; i++) au->x[i]=i+0x67;
for (i=0; i<128; i++) au->y[i]=0x7f;
for (i=0; i<128; i++) au->z[i]=0x1f;
au_wr(au, 0, AU_REG_ADB, 0, 4);
for (i=0; i<124; i++) au_wr(au, 0, AU_REG_RTBASE+(i<<2), 0xffffffff, 4);
/* test */
i=au_rd(au, 0, 0x107c0, 4);
if (i!=0xdeadbeef) device_printf(dev, "dma check failed: 0x%x\n", i);
/* install mixer */
au_wr(au, 0, AU_REG_IRQGLOB,
au_rd(au, 0, AU_REG_IRQGLOB, 4) | AU_IRQ_ENABLE, 4);
/* braindead but it's what the oss/linux driver does
* for (i=0; i<0x80000000; i++) au_wr(au, 0, i<<2, 0, 4);
*/
au->routes[0]=au->routes[1]=au->routes[2]=au->routes[3]=0;
/*au->x1e4=0;*/
/* attach channel */
au_addroute(au, 0x11, 0x48, 0x02);
au_addroute(au, 0x11, 0x49, 0x03);
au_encodec(au, 0);
au_encodec(au, 1);
for (i=0; i<48; i++) au_wr(au, 0, 0xf800+(i<<2), 0x20, 4);
for (i=2; i<6; i++) au_wr(au, 0, 0xf800+(i<<2), 0, 4);
au_wr(au, 0, 0xf8c0, 0x0843, 4);
for (i=0; i<4; i++) au_clrfifo(au, i);
return (0);
}
static int
au_testirq(struct au_info *au)
{
au_wr(au, 0, AU_REG_UNK1, 0x80001000, 4);
au_wr(au, 0, AU_REG_IRQEN, 0x00001030, 4);
au_wr(au, 0, AU_REG_IRQSRC, 0x000007ff, 4);
DELAY(1000000);
if (au->interrupts==0) printf("pcm%d: irq test failed\n", au->unit);
/* this apparently generates an irq */
return 0;
}
static int
au_pci_probe(device_t dev)
{
if (pci_get_devid(dev) == AU8820_PCI_ID) {
device_set_desc(dev, "Aureal Vortex 8820");
return BUS_PROBE_DEFAULT;
}
return ENXIO;
}
static int
au_pci_attach(device_t dev)
{
u_int32_t data;
struct au_info *au;
int type[10];
int regid[10];
struct resource *reg[10];
int i, j, mapped = 0;
int irqid;
struct resource *irq = 0;
void *ih = 0;
struct ac97_info *codec;
char status[SND_STATUSLEN];
if ((au = malloc(sizeof(*au), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) {
device_printf(dev, "cannot allocate softc\n");
return ENXIO;
}
au->unit = device_get_unit(dev);
data = pci_read_config(dev, PCIR_COMMAND, 2);
data |= (PCIM_CMD_PORTEN|PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
pci_write_config(dev, PCIR_COMMAND, data, 2);
data = pci_read_config(dev, PCIR_COMMAND, 2);
j=0;
/* XXX dfr: is this strictly necessary? */
for (i=0; i<PCI_MAXMAPS_0; i++) {
#if 0
/* Slapped wrist: config_id and map are private structures */
if (bootverbose) {
printf("pcm%d: map %d - allocating ", unit, i+1);
printf("0x%x bytes of ", 1<<config_id->map[i].ln2size);
printf("%s space ", (config_id->map[i].type & PCI_MAPPORT)?
"io" : "memory");
printf("at 0x%x...", config_id->map[i].base);
}
#endif
regid[j] = PCIR_BAR(i);
type[j] = SYS_RES_MEMORY;
reg[j] = bus_alloc_resource_any(dev, type[j], &regid[j],
RF_ACTIVE);
if (!reg[j]) {
type[j] = SYS_RES_IOPORT;
reg[j] = bus_alloc_resource_any(dev, type[j],
&regid[j], RF_ACTIVE);
}
if (reg[j]) {
au->st[i] = rman_get_bustag(reg[j]);
au->sh[i] = rman_get_bushandle(reg[j]);
mapped++;
}
#if 0
if (bootverbose) printf("%s\n", mapped? "ok" : "failed");
#endif
if (mapped) j++;
if (j == 10) {
/* XXX */
device_printf(dev, "too many resources");
goto bad;
}
}
#if 0
if (j < config_id->nummaps) {
printf("pcm%d: unable to map a required resource\n", unit);
free(au, M_DEVBUF);
return;
}
#endif
au_wr(au, 0, AU_REG_IRQEN, 0, 4);
irqid = 0;
irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irqid,
RF_ACTIVE | RF_SHAREABLE);
if (!irq || snd_setup_intr(dev, irq, 0, au_intr, au, &ih)) {
device_printf(dev, "unable to map interrupt\n");
goto bad;
}
if (au_testirq(au)) device_printf(dev, "irq test failed\n");
if (au_init(dev, au) == -1) {
device_printf(dev, "unable to initialize the card\n");
goto bad;
}
codec = AC97_CREATE(dev, au, au_ac97);
if (codec == NULL) goto bad;
if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto bad;
if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
/*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/AU_BUFFSIZE, /*nsegments*/1, /*maxsegz*/0x3ffff,
/*flags*/0, /*lockfunc*/busdma_lock_mutex,
/*lockarg*/&Giant, &au->parent_dmat) != 0) {
device_printf(dev, "unable to create dma tag\n");
goto bad;
}
snprintf(status, SND_STATUSLEN, "at %s 0x%lx irq %ld %s",
(type[0] == SYS_RES_IOPORT)? "io" : "memory",
rman_get_start(reg[0]), rman_get_start(irq),PCM_KLDSTRING(snd_aureal));
if (pcm_register(dev, au, 1, 1)) goto bad;
/* pcm_addchan(dev, PCMDIR_REC, &au_chantemplate, au); */
pcm_addchan(dev, PCMDIR_PLAY, &auchan_class, au);
pcm_setstatus(dev, status);
return 0;
bad:
if (au) free(au, M_DEVBUF);
for (i = 0; i < j; i++)
bus_release_resource(dev, type[i], regid[i], reg[i]);
if (ih) bus_teardown_intr(dev, irq, ih);
if (irq) bus_release_resource(dev, SYS_RES_IRQ, irqid, irq);
return ENXIO;
}
static device_method_t au_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, au_pci_probe),
DEVMETHOD(device_attach, au_pci_attach),
{ 0, 0 }
};
static driver_t au_driver = {
"pcm",
au_methods,
PCM_SOFTC_SIZE,
};
DRIVER_MODULE(snd_aureal, pci, au_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_aureal, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(snd_aureal, 1);
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