freebsd-dev/sys/dev/sound/pci/au88x0.c
Pyun YongHyeon eba1cb6e3e Audio drivers failed to detect failure condition and attempted to
assign DMA address to the wrong address. It can cause system lockup
or other mysterious errors. Since most sound cards requires low DMA
address(BUS_SPACE_MAXADDR_24BIT) sndbuf_alloc() would fail when the
audio driver is loaded after long running of operations.

Approved by:	jake (mentor)
Reviewed by:	truckman, matk
2004-10-13 05:45:16 +00:00

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/*-
* Copyright (c) 2003 Dag-Erling Coïdan Smørgrav
* 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
* in this position and unchanged.
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*
* $FreeBSD$
*/
#include <dev/sound/pcm/sound.h>
#include <dev/sound/pcm/ac97.h>
#include <dev/sound/pci/au88x0.h>
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
/***************************************************************************\
* *
* SUPPORTED CHIPSETS *
* *
\***************************************************************************/
static struct au88x0_chipset au88x0_chipsets[] = {
{
.auc_name = "Aureal Vortex (8820)",
.auc_pci_id = 0x000112eb,
.auc_control = 0x1280c,
.auc_irq_source = 0x12800,
.auc_irq_mask = 0x12804,
.auc_irq_control = 0x12808,
.auc_irq_status = 0x1199c,
.auc_dma_control = 0x1060c,
.auc_fifo_size = 0x20,
.auc_wt_fifos = 32,
.auc_wt_fifo_base = 0x0e800,
.auc_wt_fifo_ctl = 0x0f800,
.auc_wt_dma_ctl = 0x10500,
.auc_adb_fifos = 16,
.auc_adb_fifo_base = 0x0e000,
.auc_adb_fifo_ctl = 0x0f840,
.auc_adb_dma_ctl = 0x10580,
.auc_adb_route_base = 0x10800,
.auc_adb_route_bits = 7,
.auc_adb_codec_in = 0x48,
.auc_adb_codec_out = 0x58,
},
{
.auc_name = "Aureal Vortex 2 (8830)",
.auc_pci_id = 0x000212eb,
.auc_control = 0x2a00c,
.auc_irq_source = 0x2a000,
.auc_irq_mask = 0x2a004,
.auc_irq_control = 0x2a008,
.auc_irq_status = 0x2919c,
.auc_dma_control = 0x27ae8,
.auc_fifo_size = 0x40,
.auc_wt_fifos = 64,
.auc_wt_fifo_base = 0x10000,
.auc_wt_fifo_ctl = 0x16000,
.auc_wt_dma_ctl = 0x27900,
.auc_adb_fifos = 32,
.auc_adb_fifo_base = 0x14000,
.auc_adb_fifo_ctl = 0x16100,
.auc_adb_dma_ctl = 0x27a00,
.auc_adb_route_base = 0x28000,
.auc_adb_route_bits = 8,
.auc_adb_codec_in = 0x70,
.auc_adb_codec_out = 0x88,
},
{
.auc_name = "Aureal Vortex Advantage (8810)",
.auc_pci_id = 0x000312eb,
.auc_control = 0x2a00c,
.auc_irq_source = 0x2a000,
.auc_irq_mask = 0x2a004,
.auc_irq_control = 0x2a008,
.auc_irq_status = 0x2919c,
.auc_dma_control = 0x27ae8,
.auc_fifo_size = 0x20,
.auc_wt_fifos = 32,
.auc_wt_fifo_base = 0x10000,
.auc_wt_fifo_ctl = 0x16000,
.auc_wt_dma_ctl = 0x27fd8,
.auc_adb_fifos = 16,
.auc_adb_fifo_base = 0x14000,
.auc_adb_fifo_ctl = 0x16100,
.auc_adb_dma_ctl = 0x27180,
.auc_adb_route_base = 0x28000,
.auc_adb_route_bits = 8,
.auc_adb_codec_in = 0x70,
.auc_adb_codec_out = 0x88,
},
{
.auc_pci_id = 0,
}
};
/***************************************************************************\
* *
* FORMATS AND CAPABILITIES *
* *
\***************************************************************************/
static u_int32_t au88x0_formats[] = {
AFMT_U8,
AFMT_STEREO | AFMT_U8,
AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE,
0
};
static struct pcmchan_caps au88x0_capabilities = {
4000, /* minimum sample rate */
48000, /* maximum sample rate */
au88x0_formats, /* supported formats */
0 /* no particular capabilities */
};
/***************************************************************************\
* *
* CODEC INTERFACE *
* *
\***************************************************************************/
/*
* Read from the au88x0 register space
*/
#if 1
/* all our writes are 32-bit */
#define au88x0_read(aui, reg, n) \
bus_space_read_4((aui)->aui_spct, (aui)->aui_spch, (reg))
#define au88x0_write(aui, reg, data, n) \
bus_space_write_4((aui)->aui_spct, (aui)->aui_spch, (reg), (data))
#else
static uint32_t
au88x0_read(struct au88x0_info *aui, int reg, int size)
{
uint32_t data;
switch (size) {
case 1:
data = bus_space_read_1(aui->aui_spct, aui->aui_spch, reg);
break;
case 2:
data = bus_space_read_2(aui->aui_spct, aui->aui_spch, reg);
break;
case 4:
data = bus_space_read_4(aui->aui_spct, aui->aui_spch, reg);
break;
default:
panic("unsupported read size %d", size);
}
return (data);
}
/*
* Write to the au88x0 register space
*/
static void
au88x0_write(struct au88x0_info *aui, int reg, uint32_t data, int size)
{
switch (size) {
case 1:
bus_space_write_1(aui->aui_spct, aui->aui_spch, reg, data);
break;
case 2:
bus_space_write_2(aui->aui_spct, aui->aui_spch, reg, data);
break;
case 4:
bus_space_write_4(aui->aui_spct, aui->aui_spch, reg, data);
break;
default:
panic("unsupported write size %d", size);
}
}
#endif
/*
* Reset and initialize the codec
*/
static void
au88x0_codec_init(struct au88x0_info *aui)
{
uint32_t data;
int i;
/* wave that chicken */
au88x0_write(aui, AU88X0_CODEC_CONTROL, 0x8068, 4);
DELAY(AU88X0_SETTLE_DELAY);
au88x0_write(aui, AU88X0_CODEC_CONTROL, 0x00e8, 4);
DELAY(1000);
for (i = 0; i < 32; ++i) {
au88x0_write(aui, AU88X0_CODEC_CHANNEL + i * 4, 0, 4);
DELAY(AU88X0_SETTLE_DELAY);
}
au88x0_write(aui, AU88X0_CODEC_CONTROL, 0x00e8, 4);
DELAY(AU88X0_SETTLE_DELAY);
/* enable both codec channels */
data = au88x0_read(aui, AU88X0_CODEC_ENABLE, 4);
data |= (1 << (8 + 0)) | (1 << (8 + 1));
au88x0_write(aui, AU88X0_CODEC_ENABLE, data, 4);
DELAY(AU88X0_SETTLE_DELAY);
}
/*
* Wait for the codec to get ready to accept a register write
* Should be called at spltty
*/
static int
au88x0_codec_wait(struct au88x0_info *aui)
{
uint32_t data;
int i;
for (i = 0; i < AU88X0_RETRY_COUNT; ++i) {
data = au88x0_read(aui, AU88X0_CODEC_CONTROL, 4);
if (data & AU88X0_CDCTL_WROK)
return (0);
DELAY(AU88X0_SETTLE_DELAY);
}
device_printf(aui->aui_dev, "timeout while waiting for codec\n");
return (-1);
}
/*
* Read from the ac97 codec
*/
static int
au88x0_codec_read(kobj_t obj, void *arg, int reg)
{
struct au88x0_info *aui = arg;
uint32_t data;
int sl;
sl = spltty();
au88x0_codec_wait(aui);
au88x0_write(aui, AU88X0_CODEC_IO, AU88X0_CDIO_READ(reg), 4);
DELAY(1000);
data = au88x0_read(aui, AU88X0_CODEC_IO, 4);
splx(sl);
data &= AU88X0_CDIO_DATA_MASK;
data >>= AU88X0_CDIO_DATA_SHIFT;
return (data);
}
/*
* Write to the ac97 codec
*/
static int
au88x0_codec_write(kobj_t obj, void *arg, int reg, uint32_t data)
{
struct au88x0_info *aui = arg;
int sl;
sl = spltty();
au88x0_codec_wait(aui);
au88x0_write(aui, AU88X0_CODEC_IO, AU88X0_CDIO_WRITE(reg, data), 4);
splx(sl);
return 0;
}
/*
* Codec interface glue
*/
static kobj_method_t au88x0_ac97_methods[] = {
KOBJMETHOD(ac97_read, au88x0_codec_read),
KOBJMETHOD(ac97_write, au88x0_codec_write),
{ 0, 0 }
};
AC97_DECLARE(au88x0_ac97);
#define au88x0_channel(aui, dir) \
&(aui)->aui_chan[((dir) == PCMDIR_PLAY) ? 0 : 1]
/***************************************************************************\
* *
* CHANNEL INTERFACE *
* *
\***************************************************************************/
/*
* Initialize a PCM channel
*/
static void *
au88x0_chan_init(kobj_t obj, void *arg,
struct snd_dbuf *buf, struct pcm_channel *chan, int dir)
{
struct au88x0_info *aui = arg;
struct au88x0_chan_info *auci = au88x0_channel(aui, dir);
if (sndbuf_alloc(buf, aui->aui_dmat, aui->aui_bufsize) != 0)
return (NULL);
auci->auci_aui = aui;
auci->auci_pcmchan = chan;
auci->auci_buf = buf;
auci->auci_dir = dir;
return (auci);
}
/*
* Set the data format for a PCM channel
*/
static int
au88x0_chan_setformat(kobj_t obj, void *arg, u_int32_t format)
{
/* XXX */
return (ENXIO);
}
/*
* Set the sample rate for a PCM channel
*/
static int
au88x0_chan_setspeed(kobj_t obj, void *arg, u_int32_t speed)
{
/* XXX */
return (speed);
}
/*
* Set the block size for a PCM channel
*/
static int
au88x0_chan_setblocksize(kobj_t obj, void *arg, u_int32_t blocksize)
{
/* XXX */
return (blocksize);
}
/*
* Initiate a data transfer
*/
static int
au88x0_chan_trigger(kobj_t obj, void *arg, int trigger)
{
struct au88x0_chan_info *auci = arg;
(void)auci;
switch (trigger) {
case PCMTRIG_START:
break;
case PCMTRIG_STOP:
case PCMTRIG_ABORT:
break;
}
return (0);
}
/*
*
*/
static int
au88x0_chan_getptr(kobj_t obj, void *arg)
{
/* XXX */
return (0);
}
/*
* Return the capabilities of a PCM channel
*/
static struct pcmchan_caps *
au88x0_chan_getcaps(kobj_t obj, void *arg)
{
return (&au88x0_capabilities);
}
/*
* Channel interface glue
*/
static kobj_method_t au88x0_chan_methods[] = {
KOBJMETHOD(channel_init, au88x0_chan_init),
KOBJMETHOD(channel_setformat, au88x0_chan_setformat),
KOBJMETHOD(channel_setspeed, au88x0_chan_setspeed),
KOBJMETHOD(channel_setblocksize, au88x0_chan_setblocksize),
KOBJMETHOD(channel_trigger, au88x0_chan_trigger),
KOBJMETHOD(channel_getptr, au88x0_chan_getptr),
KOBJMETHOD(channel_getcaps, au88x0_chan_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(au88x0_chan);
/***************************************************************************\
* *
* INTERRUPT HANDLER *
* *
\***************************************************************************/
static void
au88x0_intr(void *arg)
{
struct au88x0_info *aui = arg;
struct au88x0_chipset *auc = aui->aui_chipset;
int pending, source;
pending = au88x0_read(aui, auc->auc_irq_control, 4);
if ((pending & AU88X0_IRQ_PENDING_BIT) == 0)
return;
source = au88x0_read(aui, auc->auc_irq_source, 4);
if (source & AU88X0_IRQ_FATAL_ERR)
device_printf(aui->aui_dev,
"fatal error interrupt received\n");
if (source & AU88X0_IRQ_PARITY_ERR)
device_printf(aui->aui_dev,
"parity error interrupt received\n");
/* XXX handle the others... */
/* acknowledge the interrupts we just handled */
au88x0_write(aui, auc->auc_irq_source, source, 4);
au88x0_read(aui, auc->auc_irq_source, 4);
}
/***************************************************************************\
* *
* INITIALIZATION *
* *
\***************************************************************************/
/*
* Reset and initialize the ADB and WT FIFOs
*
* - need to find out what the magic values 0x42000 and 0x2000 mean.
*/
static void
au88x0_fifo_init(struct au88x0_info *aui)
{
struct au88x0_chipset *auc = aui->aui_chipset;
int i;
/* reset, then clear the ADB FIFOs */
for (i = 0; i < auc->auc_adb_fifos; ++i)
au88x0_write(aui, auc->auc_adb_fifo_ctl + i * 4, 0x42000, 4);
for (i = 0; i < auc->auc_adb_fifos * auc->auc_fifo_size; ++i)
au88x0_write(aui, auc->auc_adb_fifo_base + i * 4, 0, 4);
/* reset, then clear the WT FIFOs */
for (i = 0; i < auc->auc_wt_fifos; ++i)
au88x0_write(aui, auc->auc_wt_fifo_ctl + i * 4, 0x42000, 4);
for (i = 0; i < auc->auc_wt_fifos * auc->auc_fifo_size; ++i)
au88x0_write(aui, auc->auc_wt_fifo_base + i * 4, 0, 4);
}
/*
* Hardware initialization
*/
static void
au88x0_init(struct au88x0_info *aui)
{
struct au88x0_chipset *auc = aui->aui_chipset;
/* reset the chip */
au88x0_write(aui, auc->auc_control, 0xffffffff, 4);
DELAY(10000);
/* clear all interrupts */
au88x0_write(aui, auc->auc_irq_source, 0xffffffff, 4);
au88x0_read(aui, auc->auc_irq_source, 4);
au88x0_read(aui, auc->auc_irq_status, 4);
/* initialize the codec */
au88x0_codec_init(aui);
/* initialize the fifos */
au88x0_fifo_init(aui);
/* initialize the DMA engine */
/* XXX chicken-waving! */
au88x0_write(aui, auc->auc_dma_control, 0x1380000, 4);
}
/*
* Construct and set status string
*/
static void
au88x0_set_status(device_t dev)
{
char status[SND_STATUSLEN];
struct au88x0_info *aui;
aui = pcm_getdevinfo(dev);
snprintf(status, sizeof status, "at %s 0x%lx irq %ld %s",
(aui->aui_regtype == SYS_RES_IOPORT)? "io" : "memory",
rman_get_start(aui->aui_reg), rman_get_start(aui->aui_irq),PCM_KLDSTRING(snd_au88x0));
pcm_setstatus(dev, status);
}
/***************************************************************************\
* *
* PCI INTERFACE *
* *
\***************************************************************************/
/*
* Probe
*/
static int
au88x0_pci_probe(device_t dev)
{
struct au88x0_chipset *auc;
uint32_t pci_id;
pci_id = pci_get_devid(dev);
for (auc = au88x0_chipsets; auc->auc_pci_id; ++auc) {
if (auc->auc_pci_id == pci_id) {
device_set_desc(dev, auc->auc_name);
return (0);
}
}
return (ENXIO);
}
/*
* Attach
*/
static int
au88x0_pci_attach(device_t dev)
{
struct au88x0_chipset *auc;
struct au88x0_info *aui = NULL;
uint32_t config;
int error;
if ((aui = malloc(sizeof *aui, M_DEVBUF, M_NOWAIT|M_ZERO)) == NULL) {
device_printf(dev, "failed to allocate softc\n");
return (ENXIO);
}
aui->aui_dev = dev;
/* Model-specific parameters */
aui->aui_model = pci_get_devid(dev);
for (auc = au88x0_chipsets; auc->auc_pci_id; ++auc)
if (auc->auc_pci_id == aui->aui_model)
aui->aui_chipset = auc;
if (aui->aui_chipset == NULL)
panic("%s() called for non-au88x0 device", __func__);
/* enable pio, mmio, bus-mastering dma */
config = pci_read_config(dev, PCIR_COMMAND, 2);
config |= (PCIM_CMD_PORTEN|PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
pci_write_config(dev, PCIR_COMMAND, config, 2);
/* register mapping */
config = pci_read_config(dev, PCIR_COMMAND, 2);
if (config & PCIM_CMD_MEMEN) {
/* try memory-mapped I/O */
aui->aui_regid = PCIR_BAR(0);
aui->aui_regtype = SYS_RES_MEMORY;
aui->aui_reg = bus_alloc_resource_any(dev, aui->aui_regtype,
&aui->aui_regid, RF_ACTIVE);
}
if (aui->aui_reg == NULL && (config & PCIM_CMD_PORTEN)) {
/* fall back on port I/O */
aui->aui_regid = PCIR_BAR(0);
aui->aui_regtype = SYS_RES_IOPORT;
aui->aui_reg = bus_alloc_resource_any(dev, aui->aui_regtype,
&aui->aui_regid, RF_ACTIVE);
}
if (aui->aui_reg == NULL) {
/* both mmio and pio failed... */
device_printf(dev, "failed to map registers\n");
goto failed;
}
aui->aui_spct = rman_get_bustag(aui->aui_reg);
aui->aui_spch = rman_get_bushandle(aui->aui_reg);
/* IRQ mapping */
aui->aui_irqid = 0;
aui->aui_irqtype = SYS_RES_IRQ;
aui->aui_irq = bus_alloc_resource_any(dev, aui->aui_irqtype,
&aui->aui_irqid, RF_ACTIVE | RF_SHAREABLE);
if (aui->aui_irq == 0) {
device_printf(dev, "failed to map IRQ\n");
goto failed;
}
/* install interrupt handler */
error = snd_setup_intr(dev, aui->aui_irq, 0, au88x0_intr,
aui, &aui->aui_irqh);
if (error != 0) {
device_printf(dev, "failed to install interrupt handler\n");
goto failed;
}
/* DMA mapping */
aui->aui_bufsize = pcm_getbuffersize(dev, AU88X0_BUFSIZE_MIN,
AU88X0_BUFSIZE_DFLT, AU88X0_BUFSIZE_MAX);
error = bus_dma_tag_create(NULL,
2, 0, /* 16-bit alignment, no boundary */
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, /* restrict to 4GB */
NULL, NULL, /* no filter */
aui->aui_bufsize, 1, aui->aui_bufsize,
0, busdma_lock_mutex, &Giant, &aui->aui_dmat);
if (error != 0) {
device_printf(dev, "failed to create DMA tag\n");
goto failed;
}
/* initialize the hardware */
au88x0_init(aui);
/* initialize the ac97 codec and mixer */
if ((aui->aui_ac97i = AC97_CREATE(dev, aui, au88x0_ac97)) == NULL) {
device_printf(dev, "failed to initialize ac97 codec\n");
goto failed;
}
if (mixer_init(dev, ac97_getmixerclass(), aui->aui_ac97i) != 0) {
device_printf(dev, "failed to initialize ac97 mixer\n");
goto failed;
}
/* register with the pcm driver */
if (pcm_register(dev, aui, 0, 0))
goto failed;
pcm_addchan(dev, PCMDIR_PLAY, &au88x0_chan_class, aui);
#if 0
pcm_addchan(dev, PCMDIR_REC, &au88x0_chan_class, aui);
#endif
au88x0_set_status(dev);
return (0);
failed:
if (aui->aui_ac97i != NULL)
ac97_destroy(aui->aui_ac97i);
if (aui->aui_dmat)
bus_dma_tag_destroy(aui->aui_dmat);
if (aui->aui_irqh != NULL)
bus_teardown_intr(dev, aui->aui_irq, aui->aui_irqh);
if (aui->aui_irq)
bus_release_resource(dev, aui->aui_irqtype,
aui->aui_irqid, aui->aui_irq);
if (aui->aui_reg)
bus_release_resource(dev, aui->aui_regtype,
aui->aui_regid, aui->aui_reg);
free(aui, M_DEVBUF);
return (ENXIO);
}
/*
* Detach
*/
static int
au88x0_pci_detach(device_t dev)
{
struct au88x0_info *aui;
int error;
aui = pcm_getdevinfo(dev);
if ((error = pcm_unregister(dev)) != 0)
return (error);
/* release resources in reverse order */
bus_dma_tag_destroy(aui->aui_dmat);
bus_teardown_intr(dev, aui->aui_irq, aui->aui_irqh);
bus_release_resource(dev, aui->aui_irqtype,
aui->aui_irqid, aui->aui_irq);
bus_release_resource(dev, aui->aui_regtype,
aui->aui_regid, aui->aui_reg);
free(aui, M_DEVBUF);
return (0);
}
/*
* Driver glue
*/
static device_method_t au88x0_methods[] = {
DEVMETHOD(device_probe, au88x0_pci_probe),
DEVMETHOD(device_attach, au88x0_pci_attach),
DEVMETHOD(device_detach, au88x0_pci_detach),
{ 0, 0 }
};
static driver_t au88x0_driver = {
"pcm",
au88x0_methods,
PCM_SOFTC_SIZE,
};
DRIVER_MODULE(snd_au88x0, pci, au88x0_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_au88x0, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(snd_au88x0, 1);