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freebsd-nq/sys/dev/sound/sbus/cs4231.c
Kevin Lo 976b010645 Spelling fix for interupt -> interrupt
2007-10-12 06:03:46 +00:00

1560 lines
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/*-
* Copyright (c) 1999 Jason L. Wright (jason@thought.net)
* Copyright (c) 2004 Pyun YongHyeon
* 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 ``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.
*
* Effort sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F30602-01-2-0537.
*
* from: OpenBSD: cs4231.c,v 1.21 2003/07/03 20:36:07 jason Exp
*/
/*
* Driver for CS4231 based audio found in some sun4m systems (cs4231)
* based on ideas from the S/Linux project and the NetBSD project.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/resource.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/openfirm.h>
#include <machine/bus.h>
#include <machine/ofw_machdep.h>
#include <dev/sound/pcm/sound.h>
#include <dev/sound/sbus/apcdmareg.h>
#include <dev/sound/sbus/cs4231.h>
#include <sparc64/sbus/sbusvar.h>
#include <sparc64/ebus/ebusreg.h>
#include "mixer_if.h"
/*
* The driver supports CS4231A audio chips found on Sbus/Ebus based
* UltraSPARCs. Though, CS4231A says it supports full-duplex mode, I
* doubt it due to the lack of independent sampling frequency register
* for playback/capture.
* Since I couldn't find any documentation for APCDMA programming
* information, I guessed the usage of APCDMA from that of OpenBSD's
* driver. The EBDMA infomation of PCIO can be obtained from
* http://solutions.sun.com/embedded/databook/web/microprocessors/pcio.html
* And CS4231A datasheet can also be obtained from
* ftp://ftp.alsa-project.org/pub/manuals/cirrus/4231a.pdf
*
* Audio capture(recording) was not tested at all and may have bugs.
* Sorry, I don't have microphone. Don't try to use full-duplex mode.
* It wouldn't work.
*/
#define CS_TIMEOUT 90000
#define CS4231_MIN_BUF_SZ (16*1024)
#define CS4231_DEFAULT_BUF_SZ (32*1024)
#define CS4231_MAX_BUF_SZ (64*1024)
#define CS4231_MAX_BLK_SZ (8*1024)
#define CS4231_MAX_APC_DMA_SZ (8*1024)
#undef CS4231_DEBUG
#ifdef CS4231_DEBUG
#define DPRINTF(x) printf x
#else
#define DPRINTF(x)
#endif
#define CS4231_AUTO_CALIBRATION
struct cs4231_softc;
struct cs4231_channel {
struct cs4231_softc *parent;
struct pcm_channel *channel;
struct snd_dbuf *buffer;
u_int32_t format;
u_int32_t speed;
u_int32_t nextaddr;
u_int32_t togo;
int dir;
int locked;
};
#define CS4231_RES_MEM_MAX 4
#define CS4231_RES_IRQ_MAX 2
struct cs4231_softc {
struct device *sc_dev;
int sc_rid[CS4231_RES_MEM_MAX];
struct resource *sc_res[CS4231_RES_MEM_MAX];
bus_space_handle_t sc_regh[CS4231_RES_MEM_MAX];
bus_space_tag_t sc_regt[CS4231_RES_MEM_MAX];
int sc_irqrid[CS4231_RES_IRQ_MAX];
struct resource *sc_irqres[CS4231_RES_IRQ_MAX];
void *sc_ih[CS4231_RES_IRQ_MAX];
bus_dma_tag_t sc_dmat[CS4231_RES_IRQ_MAX];
int sc_burst;
u_int32_t sc_bufsz;
struct cs4231_channel sc_pch;
struct cs4231_channel sc_rch;
int sc_enabled;
int sc_nmres;
int sc_nires;
int sc_codecv;
int sc_chipvid;
int sc_flags;
#define CS4231_SBUS 0x01
#define CS4231_EBUS 0x02
struct mtx *sc_lock;
};
struct mix_table {
u_int32_t reg:8;
u_int32_t bits:8;
u_int32_t mute:8;
u_int32_t shift:4;
u_int32_t neg:1;
u_int32_t avail:1;
u_int32_t recdev:1;
};
static int cs4231_bus_probe(device_t);
static int cs4231_sbus_attach(device_t);
static int cs4231_ebus_attach(device_t);
static int cs4231_attach_common(struct cs4231_softc *);
static int cs4231_bus_detach(device_t);
static int cs4231_bus_suspend(device_t);
static int cs4231_bus_resume(device_t);
static void cs4231_getversion(struct cs4231_softc *);
static void cs4231_free_resource(struct cs4231_softc *);
static void cs4231_ebdma_reset(struct cs4231_softc *);
static void cs4231_power_reset(struct cs4231_softc *, int);
static int cs4231_enable(struct cs4231_softc *, int);
static void cs4231_disable(struct cs4231_softc *);
static void cs4231_write(struct cs4231_softc *, u_int8_t, u_int8_t);
static u_int8_t cs4231_read(struct cs4231_softc *, u_int8_t);
static void cs4231_sbus_intr(void *);
static void cs4231_ebus_pintr(void *arg);
static void cs4231_ebus_cintr(void *arg);
static int cs4231_mixer_init(struct snd_mixer *);
static void cs4231_mixer_set_value(struct cs4231_softc *,
const struct mix_table *, u_int8_t);
static int cs4231_mixer_set(struct snd_mixer *, u_int32_t, u_int32_t,
u_int32_t);
static int cs4231_mixer_setrecsrc(struct snd_mixer *, u_int32_t);
static void *cs4231_chan_init(kobj_t, void *, struct snd_dbuf *,
struct pcm_channel *, int);
static int cs4231_chan_setformat(kobj_t, void *, u_int32_t);
static int cs4231_chan_setspeed(kobj_t, void *, u_int32_t);
static void cs4231_chan_fs(struct cs4231_softc *, int, u_int8_t);
static int cs4231_chan_setblocksize(kobj_t, void *, u_int32_t);
static int cs4231_chan_trigger(kobj_t, void *, int);
static int cs4231_chan_getptr(kobj_t, void *);
static struct pcmchan_caps *
cs4231_chan_getcaps(kobj_t, void *);
static void cs4231_trigger(struct cs4231_channel *);
static void cs4231_apcdma_trigger(struct cs4231_softc *,
struct cs4231_channel *);
static void cs4231_ebdma_trigger(struct cs4231_softc *,
struct cs4231_channel *);
static void cs4231_halt(struct cs4231_channel *);
#define CS4231_LOCK(sc) snd_mtxlock(sc->sc_lock)
#define CS4231_UNLOCK(sc) snd_mtxunlock(sc->sc_lock)
#define CS4231_LOCK_ASSERT(sc) snd_mtxassert(sc->sc_lock)
#define CS_WRITE(sc,r,v) \
bus_space_write_1((sc)->sc_regt[0], (sc)->sc_regh[0], (r) << 2, (v))
#define CS_READ(sc,r) \
bus_space_read_1((sc)->sc_regt[0], (sc)->sc_regh[0], (r) << 2)
#define APC_WRITE(sc,r,v) \
bus_space_write_4(sc->sc_regt[0], sc->sc_regh[0], r, v)
#define APC_READ(sc,r) \
bus_space_read_4(sc->sc_regt[0], sc->sc_regh[0], r)
#define EBDMA_P_WRITE(sc,r,v) \
bus_space_write_4((sc)->sc_regt[1], (sc)->sc_regh[1], (r), (v))
#define EBDMA_P_READ(sc,r) \
bus_space_read_4((sc)->sc_regt[1], (sc)->sc_regh[1], (r))
#define EBDMA_C_WRITE(sc,r,v) \
bus_space_write_4((sc)->sc_regt[2], (sc)->sc_regh[2], (r), (v))
#define EBDMA_C_READ(sc,r) \
bus_space_read_4((sc)->sc_regt[2], (sc)->sc_regh[2], (r))
#define AUXIO_CODEC 0x00
#define AUXIO_WRITE(sc,r,v) \
bus_space_write_4((sc)->sc_regt[3], (sc)->sc_regh[3], (r), (v))
#define AUXIO_READ(sc,r) \
bus_space_read_4((sc)->sc_regt[3], (sc)->sc_regh[3], (r))
#define CODEC_WARM_RESET 0
#define CODEC_COLD_RESET 1
/* SBus */
static device_method_t cs4231_sbus_methods[] = {
DEVMETHOD(device_probe, cs4231_bus_probe),
DEVMETHOD(device_attach, cs4231_sbus_attach),
DEVMETHOD(device_detach, cs4231_bus_detach),
DEVMETHOD(device_suspend, cs4231_bus_suspend),
DEVMETHOD(device_resume, cs4231_bus_resume),
{0, 0}
};
static driver_t cs4231_sbus_driver = {
"pcm",
cs4231_sbus_methods,
PCM_SOFTC_SIZE
};
DRIVER_MODULE(snd_audiocs, sbus, cs4231_sbus_driver, pcm_devclass, 0, 0);
/* EBus */
static device_method_t cs4231_ebus_methods[] = {
DEVMETHOD(device_probe, cs4231_bus_probe),
DEVMETHOD(device_attach, cs4231_ebus_attach),
DEVMETHOD(device_detach, cs4231_bus_detach),
DEVMETHOD(device_suspend, cs4231_bus_suspend),
DEVMETHOD(device_resume, cs4231_bus_resume),
{0, 0}
};
static driver_t cs4231_ebus_driver = {
"pcm",
cs4231_ebus_methods,
PCM_SOFTC_SIZE
};
DRIVER_MODULE(snd_audiocs, ebus, cs4231_ebus_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_audiocs, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(snd_audiocs, 1);
static u_int32_t cs4231_fmt[] = {
AFMT_U8,
AFMT_STEREO | AFMT_U8,
AFMT_MU_LAW,
AFMT_STEREO | AFMT_MU_LAW,
AFMT_A_LAW,
AFMT_STEREO | AFMT_A_LAW,
AFMT_IMA_ADPCM,
AFMT_STEREO | AFMT_IMA_ADPCM,
AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE,
AFMT_S16_BE,
AFMT_STEREO | AFMT_S16_BE,
0
};
static struct pcmchan_caps cs4231_caps = {5510, 48000, cs4231_fmt, 0};
/*
* sound(4) channel interface
*/
static kobj_method_t cs4231_chan_methods[] = {
KOBJMETHOD(channel_init, cs4231_chan_init),
KOBJMETHOD(channel_setformat, cs4231_chan_setformat),
KOBJMETHOD(channel_setspeed, cs4231_chan_setspeed),
KOBJMETHOD(channel_setblocksize, cs4231_chan_setblocksize),
KOBJMETHOD(channel_trigger, cs4231_chan_trigger),
KOBJMETHOD(channel_getptr, cs4231_chan_getptr),
KOBJMETHOD(channel_getcaps, cs4231_chan_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(cs4231_chan);
/*
* sound(4) mixer interface
*/
static kobj_method_t cs4231_mixer_methods[] = {
KOBJMETHOD(mixer_init, cs4231_mixer_init),
KOBJMETHOD(mixer_set, cs4231_mixer_set),
KOBJMETHOD(mixer_setrecsrc, cs4231_mixer_setrecsrc),
{ 0, 0 }
};
MIXER_DECLARE(cs4231_mixer);
static int
cs4231_bus_probe(device_t dev)
{
const char *compat, *name;
compat = ofw_bus_get_compat(dev);
name = ofw_bus_get_name(dev);
if (strcmp("SUNW,CS4231", name) == 0 ||
(compat != NULL && strcmp("SUNW,CS4231", compat) == 0)) {
device_set_desc(dev, "Sun Audiocs");
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static int
cs4231_sbus_attach(device_t dev)
{
struct cs4231_softc *sc;
int burst;
sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
sc->sc_dev = dev;
/*
* XXX
* No public documentation exists on programming burst size of APCDMA.
*/
burst = sbus_get_burstsz(sc->sc_dev);
if ((burst & SBUS_BURST_64))
sc->sc_burst = 64;
else if ((burst & SBUS_BURST_32))
sc->sc_burst = 32;
else if ((burst & SBUS_BURST_16))
sc->sc_burst = 16;
else
sc->sc_burst = 0;
sc->sc_flags = CS4231_SBUS;
sc->sc_nmres = 1;
sc->sc_nires = 1;
return cs4231_attach_common(sc);
}
static int
cs4231_ebus_attach(device_t dev)
{
struct cs4231_softc *sc;
sc = malloc(sizeof(struct cs4231_softc), M_DEVBUF, M_NOWAIT | M_ZERO);
if (sc == NULL) {
device_printf(dev, "cannot allocate softc\n");
return (ENOMEM);
}
sc->sc_dev = dev;
sc->sc_burst = EBDCSR_BURST_1;
sc->sc_nmres = CS4231_RES_MEM_MAX;
sc->sc_nires = CS4231_RES_IRQ_MAX;
sc->sc_flags = CS4231_EBUS;
return cs4231_attach_common(sc);
}
static int
cs4231_attach_common(struct cs4231_softc *sc)
{
char status[SND_STATUSLEN];
driver_intr_t *ihandler;
int i;
sc->sc_lock = snd_mtxcreate(device_get_nameunit(sc->sc_dev),
"snd_cs4231 softc");
for (i = 0; i < sc->sc_nmres; i++) {
sc->sc_rid[i] = i;
if ((sc->sc_res[i] = bus_alloc_resource_any(sc->sc_dev,
SYS_RES_MEMORY, &sc->sc_rid[i], RF_ACTIVE)) == NULL) {
device_printf(sc->sc_dev,
"cannot map register %d\n", i);
goto fail;
}
sc->sc_regt[i] = rman_get_bustag(sc->sc_res[i]);
sc->sc_regh[i] = rman_get_bushandle(sc->sc_res[i]);
}
for (i = 0; i < sc->sc_nires; i++) {
sc->sc_irqrid[i] = i;
if ((sc->sc_irqres[i] = bus_alloc_resource_any(sc->sc_dev,
SYS_RES_IRQ, &sc->sc_irqrid[i], RF_SHAREABLE | RF_ACTIVE))
== NULL) {
if ((sc->sc_flags & CS4231_SBUS) != 0)
device_printf(sc->sc_dev,
"cannot allocate interrupt\n");
else
device_printf(sc->sc_dev, "cannot allocate %s "
"interrupt\n", i == 0 ? "capture" :
"playback");
goto fail;
}
}
ihandler = cs4231_sbus_intr;
for (i = 0; i < sc->sc_nires; i++) {
if ((sc->sc_flags & CS4231_EBUS) != 0) {
if (i == 0)
ihandler = cs4231_ebus_cintr;
else
ihandler = cs4231_ebus_pintr;
}
if (snd_setup_intr(sc->sc_dev, sc->sc_irqres[i], INTR_MPSAFE,
ihandler, sc, &sc->sc_ih[i])) {
if ((sc->sc_flags & CS4231_SBUS) != 0)
device_printf(sc->sc_dev,
"cannot set up interrupt\n");
else
device_printf(sc->sc_dev, "cannot set up %s "
" interrupt\n", i == 0 ? "capture" :
"playback");
goto fail;
}
}
sc->sc_bufsz = pcm_getbuffersize(sc->sc_dev, CS4231_MIN_BUF_SZ,
CS4231_DEFAULT_BUF_SZ, CS4231_MAX_BUF_SZ);
for (i = 0; i < sc->sc_nires; i++) {
if (bus_dma_tag_create(
bus_get_dma_tag(sc->sc_dev),/* parent */
64, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filtfunc, filtfuncarg */
sc->sc_bufsz, /* maxsize */
1, /* nsegments */
sc->sc_bufsz, /* maxsegsz */
BUS_DMA_ALLOCNOW, /* flags */
NULL, /* lockfunc */
NULL, /* lockfuncarg */
&sc->sc_dmat[i])) {
if ((sc->sc_flags & CS4231_SBUS) != 0)
device_printf(sc->sc_dev,
"cannot allocate DMA tag\n");
else
device_printf(sc->sc_dev, "cannot allocate %s "
"DMA tag\n", i == 0 ? "capture" :
"playback");
goto fail;
}
}
cs4231_enable(sc, CODEC_WARM_RESET);
cs4231_getversion(sc);
if (mixer_init(sc->sc_dev, &cs4231_mixer_class, sc) != 0)
goto fail;
if (pcm_register(sc->sc_dev, sc, 1, 1)) {
device_printf(sc->sc_dev, "cannot register to pcm\n");
goto fail;
}
if (pcm_addchan(sc->sc_dev, PCMDIR_REC, &cs4231_chan_class, sc) != 0)
goto chan_fail;
if (pcm_addchan(sc->sc_dev, PCMDIR_PLAY, &cs4231_chan_class, sc) != 0)
goto chan_fail;
if ((sc->sc_flags & CS4231_SBUS) != 0)
snprintf(status, SND_STATUSLEN, "at mem 0x%lx irq %ld bufsz %u",
rman_get_start(sc->sc_res[0]),
rman_get_start(sc->sc_irqres[0]), sc->sc_bufsz);
else
snprintf(status, SND_STATUSLEN, "at io 0x%lx 0x%lx 0x%lx 0x%lx "
"irq %ld %ld bufsz %u", rman_get_start(sc->sc_res[0]),
rman_get_start(sc->sc_res[1]),
rman_get_start(sc->sc_res[2]),
rman_get_start(sc->sc_res[3]),
rman_get_start(sc->sc_irqres[0]),
rman_get_start(sc->sc_irqres[1]), sc->sc_bufsz);
pcm_setstatus(sc->sc_dev, status);
return (0);
chan_fail:
pcm_unregister(sc->sc_dev);
fail:
cs4231_free_resource(sc);
return (ENXIO);
}
static int
cs4231_bus_detach(device_t dev)
{
struct cs4231_softc *sc;
struct cs4231_channel *pch, *rch;
int error;
sc = pcm_getdevinfo(dev);
CS4231_LOCK(sc);
pch = &sc->sc_pch;
rch = &sc->sc_pch;
if (pch->locked || rch->locked) {
CS4231_UNLOCK(sc);
return (EBUSY);
}
/*
* Since EBDMA requires valid DMA buffer to drain its FIFO, we need
* real DMA buffer for draining.
*/
if ((sc->sc_flags & CS4231_EBUS) != 0)
cs4231_ebdma_reset(sc);
CS4231_UNLOCK(sc);
error = pcm_unregister(dev);
if (error)
return (error);
cs4231_free_resource(sc);
return (0);
}
static int
cs4231_bus_suspend(device_t dev)
{
return (ENXIO);
}
static int
cs4231_bus_resume(device_t dev)
{
return (ENXIO);
}
static void
cs4231_getversion(struct cs4231_softc *sc)
{
u_int8_t v;
v = cs4231_read(sc, CS_MISC_INFO);
sc->sc_codecv = v & CS_CODEC_ID_MASK;
v = cs4231_read(sc, CS_VERSION_ID);
v &= (CS_VERSION_NUMBER | CS_VERSION_CHIPID);
sc->sc_chipvid = v;
switch(v) {
case 0x80:
device_printf(sc->sc_dev, "<CS4231 Codec Id. %d>\n",
sc->sc_codecv);
break;
case 0xa0:
device_printf(sc->sc_dev, "<CS4231A Codec Id. %d>\n",
sc->sc_codecv);
break;
case 0x82:
device_printf(sc->sc_dev, "<CS4232 Codec Id. %d>\n",
sc->sc_codecv);
break;
default:
device_printf(sc->sc_dev,
"<Unknown 0x%x Codec Id. %d\n", v, sc->sc_codecv);
break;
}
}
static void
cs4231_ebdma_reset(struct cs4231_softc *sc)
{
int i;
/* playback */
EBDMA_P_WRITE(sc, EBDMA_DCSR,
EBDMA_P_READ(sc, EBDMA_DCSR) & ~(EBDCSR_INTEN | EBDCSR_NEXTEN));
EBDMA_P_WRITE(sc, EBDMA_DCSR, EBDCSR_RESET);
for (i = CS_TIMEOUT;
i && EBDMA_P_READ(sc, EBDMA_DCSR) & EBDCSR_DRAIN; i--)
DELAY(1);
if (i == 0)
device_printf(sc->sc_dev,
"timeout waiting for playback DMA reset\n");
EBDMA_P_WRITE(sc, EBDMA_DCSR, sc->sc_burst);
/* capture */
EBDMA_C_WRITE(sc, EBDMA_DCSR,
EBDMA_C_READ(sc, EBDMA_DCSR) & ~(EBDCSR_INTEN | EBDCSR_NEXTEN));
EBDMA_C_WRITE(sc, EBDMA_DCSR, EBDCSR_RESET);
for (i = CS_TIMEOUT;
i && EBDMA_C_READ(sc, EBDMA_DCSR) & EBDCSR_DRAIN; i--)
DELAY(1);
if (i == 0)
device_printf(sc->sc_dev,
"timeout waiting for capture DMA reset\n");
EBDMA_C_WRITE(sc, EBDMA_DCSR, sc->sc_burst);
}
static void
cs4231_power_reset(struct cs4231_softc *sc, int how)
{
u_int32_t v;
int i;
if ((sc->sc_flags & CS4231_SBUS) != 0) {
APC_WRITE(sc, APC_CSR, APC_CSR_RESET);
DELAY(10);
APC_WRITE(sc, APC_CSR, 0);
DELAY(10);
APC_WRITE(sc,
APC_CSR, APC_READ(sc, APC_CSR) | APC_CSR_CODEC_RESET);
DELAY(20);
APC_WRITE(sc,
APC_CSR, APC_READ(sc, APC_CSR) & (~APC_CSR_CODEC_RESET));
} else {
v = AUXIO_READ(sc, AUXIO_CODEC);
if (how == CODEC_WARM_RESET && v != 0) {
AUXIO_WRITE(sc, AUXIO_CODEC, 0);
DELAY(20);
} else if (how == CODEC_COLD_RESET){
AUXIO_WRITE(sc, AUXIO_CODEC, 1);
DELAY(20);
AUXIO_WRITE(sc, AUXIO_CODEC, 0);
DELAY(20);
}
cs4231_ebdma_reset(sc);
}
for (i = CS_TIMEOUT;
i && CS_READ(sc, CS4231_IADDR) == CS_IN_INIT; i--)
DELAY(10);
if (i == 0)
device_printf(sc->sc_dev, "timeout waiting for reset\n");
/* turn on cs4231 mode */
cs4231_write(sc, CS_MISC_INFO,
cs4231_read(sc, CS_MISC_INFO) | CS_MODE2);
/* enable interrupts & clear CSR */
cs4231_write(sc, CS_PIN_CONTROL,
cs4231_read(sc, CS_PIN_CONTROL) | INTERRUPT_ENABLE);
CS_WRITE(sc, CS4231_STATUS, 0);
/* enable DAC output */
cs4231_write(sc, CS_LEFT_OUTPUT_CONTROL,
cs4231_read(sc, CS_LEFT_OUTPUT_CONTROL) & ~OUTPUT_MUTE);
cs4231_write(sc, CS_RIGHT_OUTPUT_CONTROL,
cs4231_read(sc, CS_RIGHT_OUTPUT_CONTROL) & ~OUTPUT_MUTE);
/* mute AUX1 since it generates noises */
cs4231_write(sc, CS_LEFT_AUX1_CONTROL,
cs4231_read(sc, CS_LEFT_AUX1_CONTROL) | AUX_INPUT_MUTE);
cs4231_write(sc, CS_RIGHT_AUX1_CONTROL,
cs4231_read(sc, CS_RIGHT_AUX1_CONTROL) | AUX_INPUT_MUTE);
/* protect buffer underrun and set output level to 0dB */
cs4231_write(sc, CS_ALT_FEATURE1,
cs4231_read(sc, CS_ALT_FEATURE1) | CS_DAC_ZERO | CS_OUTPUT_LVL);
/* enable high pass filter, dual xtal was disabled due to noises */
cs4231_write(sc, CS_ALT_FEATURE2,
cs4231_read(sc, CS_ALT_FEATURE2) | CS_HPF_ENABLE);
}
static int
cs4231_enable(struct cs4231_softc *sc, int how)
{
cs4231_power_reset(sc, how);
sc->sc_enabled = 1;
return (0);
}
static void
cs4231_disable(struct cs4231_softc *sc)
{
u_int8_t v;
CS4231_LOCK_ASSERT(sc);
if (sc->sc_enabled == 0)
return;
sc->sc_enabled = 0;
CS4231_UNLOCK(sc);
cs4231_halt(&sc->sc_pch);
cs4231_halt(&sc->sc_rch);
CS4231_LOCK(sc);
v = cs4231_read(sc, CS_PIN_CONTROL) & ~INTERRUPT_ENABLE;
cs4231_write(sc, CS_PIN_CONTROL, v);
if ((sc->sc_flags & CS4231_SBUS) != 0) {
APC_WRITE(sc, APC_CSR, APC_CSR_RESET);
DELAY(10);
APC_WRITE(sc, APC_CSR, 0);
DELAY(10);
} else
cs4231_ebdma_reset(sc);
}
static void
cs4231_free_resource(struct cs4231_softc *sc)
{
int i;
CS4231_LOCK(sc);
cs4231_disable(sc);
CS4231_UNLOCK(sc);
for (i = 0; i < sc->sc_nires; i++) {
if (sc->sc_irqres[i]) {
if (sc->sc_ih[i]) {
bus_teardown_intr(sc->sc_dev, sc->sc_irqres[i],
sc->sc_ih[i]);
sc->sc_ih[i] = NULL;
}
bus_release_resource(sc->sc_dev, SYS_RES_IRQ,
sc->sc_irqrid[i], sc->sc_irqres[i]);
sc->sc_irqres[i] = NULL;
}
}
for (i = 0; i < sc->sc_nires; i++) {
if (sc->sc_dmat[i])
bus_dma_tag_destroy(sc->sc_dmat[i]);
}
for (i = 0; i < sc->sc_nmres; i++) {
if (sc->sc_res[i])
bus_release_resource(sc->sc_dev, SYS_RES_MEMORY,
sc->sc_rid[i], sc->sc_res[i]);
}
snd_mtxfree(sc->sc_lock);
free(sc, M_DEVBUF);
}
static void
cs4231_write(struct cs4231_softc *sc, u_int8_t r, u_int8_t v)
{
CS_WRITE(sc, CS4231_IADDR, r);
CS_WRITE(sc, CS4231_IDATA, v);
}
static u_int8_t
cs4231_read(struct cs4231_softc *sc, u_int8_t r)
{
CS_WRITE(sc, CS4231_IADDR, r);
return (CS_READ(sc, CS4231_IDATA));
}
static void
cs4231_sbus_intr(void *arg)
{
struct cs4231_softc *sc;
struct cs4231_channel *pch, *rch;
u_int32_t csr;
u_int8_t status;
sc = arg;
CS4231_LOCK(sc);
csr = APC_READ(sc, APC_CSR);
if ((csr & APC_CSR_GI) == 0) {
CS4231_UNLOCK(sc);
return;
}
APC_WRITE(sc, APC_CSR, csr);
if ((csr & APC_CSR_EIE) && (csr & APC_CSR_EI)) {
status = cs4231_read(sc, CS_TEST_AND_INIT);
device_printf(sc->sc_dev,
"apc error interrupt : stat = 0x%x\n", status);
}
pch = rch = NULL;
if ((csr & APC_CSR_PMIE) && (csr & APC_CSR_PMI)) {
u_long nextaddr, saddr;
u_int32_t togo;
pch = &sc->sc_pch;
togo = pch->togo;
saddr = sndbuf_getbufaddr(pch->buffer);
nextaddr = pch->nextaddr + togo;
if (nextaddr >= saddr + sndbuf_getsize(pch->buffer))
nextaddr = saddr;
APC_WRITE(sc, APC_PNVA, nextaddr);
APC_WRITE(sc, APC_PNC, togo);
pch->nextaddr = nextaddr;
}
if ((csr & APC_CSR_CIE) && (csr & APC_CSR_CI) && (csr & APC_CSR_CD)) {
u_long nextaddr, saddr;
u_int32_t togo;
rch = &sc->sc_rch;
togo = rch->togo;
saddr = sndbuf_getbufaddr(rch->buffer);
nextaddr = rch->nextaddr + togo;
if (nextaddr >= saddr + sndbuf_getsize(rch->buffer))
nextaddr = saddr;
APC_WRITE(sc, APC_CNVA, nextaddr);
APC_WRITE(sc, APC_CNC, togo);
rch->nextaddr = nextaddr;
}
CS4231_UNLOCK(sc);
if (pch)
chn_intr(pch->channel);
if (rch)
chn_intr(rch->channel);
}
/* playback interrupt handler */
static void
cs4231_ebus_pintr(void *arg)
{
struct cs4231_softc *sc;
struct cs4231_channel *ch;
u_int32_t csr;
u_int8_t status;
sc = arg;
CS4231_LOCK(sc);
csr = EBDMA_P_READ(sc, EBDMA_DCSR);
if ((csr & EBDCSR_INT) == 0) {
CS4231_UNLOCK(sc);
return;
}
if ((csr & EBDCSR_ERR)) {
status = cs4231_read(sc, CS_TEST_AND_INIT);
device_printf(sc->sc_dev,
"ebdma error interrupt : stat = 0x%x\n", status);
}
EBDMA_P_WRITE(sc, EBDMA_DCSR, csr | EBDCSR_TC);
ch = NULL;
if (csr & EBDCSR_TC) {
u_long nextaddr, saddr;
u_int32_t togo;
ch = &sc->sc_pch;
togo = ch->togo;
saddr = sndbuf_getbufaddr(ch->buffer);
nextaddr = ch->nextaddr + togo;
if (nextaddr >= saddr + sndbuf_getsize(ch->buffer))
nextaddr = saddr;
/*
* EBDMA_DCNT is loaded automatically
* EBDMA_P_WRITE(sc, EBDMA_DCNT, togo);
*/
EBDMA_P_WRITE(sc, EBDMA_DADDR, nextaddr);
ch->nextaddr = nextaddr;
}
CS4231_UNLOCK(sc);
if (ch)
chn_intr(ch->channel);
}
/* capture interrupt handler */
static void
cs4231_ebus_cintr(void *arg)
{
struct cs4231_softc *sc;
struct cs4231_channel *ch;
u_int32_t csr;
u_int8_t status;
sc = arg;
CS4231_LOCK(sc);
csr = EBDMA_C_READ(sc, EBDMA_DCSR);
if ((csr & EBDCSR_INT) == 0) {
CS4231_UNLOCK(sc);
return;
}
if ((csr & EBDCSR_ERR)) {
status = cs4231_read(sc, CS_TEST_AND_INIT);
device_printf(sc->sc_dev,
"dma error interrupt : stat = 0x%x\n", status);
}
EBDMA_C_WRITE(sc, EBDMA_DCSR, csr | EBDCSR_TC);
ch = NULL;
if (csr & EBDCSR_TC) {
u_long nextaddr, saddr;
u_int32_t togo;
ch = &sc->sc_rch;
togo = ch->togo;
saddr = sndbuf_getbufaddr(ch->buffer);
nextaddr = ch->nextaddr + togo;
if (nextaddr >= saddr + sndbuf_getblksz(ch->buffer))
nextaddr = saddr;
/*
* EBDMA_DCNT is loaded automatically
* EBDMA_C_WRITE(sc, EBDMA_DCNT, togo);
*/
EBDMA_C_WRITE(sc, EBDMA_DADDR, nextaddr);
ch->nextaddr = nextaddr;
}
CS4231_UNLOCK(sc);
if (ch)
chn_intr(ch->channel);
}
static const struct mix_table cs4231_mix_table[SOUND_MIXER_NRDEVICES][2] = {
[SOUND_MIXER_PCM] = {
{ CS_LEFT_OUTPUT_CONTROL, 6, OUTPUT_MUTE, 0, 1, 1, 0 },
{ CS_RIGHT_OUTPUT_CONTROL, 6, OUTPUT_MUTE, 0, 1, 1, 0 }
},
[SOUND_MIXER_SPEAKER] = {
{ CS_MONO_IO_CONTROL, 4, MONO_OUTPUT_MUTE, 0, 1, 1, 0 },
{ CS_REG_NONE, 0, 0, 0, 0, 1, 0 }
},
[SOUND_MIXER_LINE] = {
{ CS_LEFT_LINE_CONTROL, 5, LINE_INPUT_MUTE, 0, 1, 1, 1 },
{ CS_RIGHT_LINE_CONTROL, 5, LINE_INPUT_MUTE, 0, 1, 1, 1 }
},
/*
* AUX1 : removed intentionally since it generates noises
* AUX2 : Ultra1/Ultra2 has no internal CD-ROM audio in
*/
[SOUND_MIXER_CD] = {
{ CS_LEFT_AUX2_CONTROL, 5, LINE_INPUT_MUTE, 0, 1, 1, 1 },
{ CS_RIGHT_AUX2_CONTROL, 5, LINE_INPUT_MUTE, 0, 1, 1, 1 }
},
[SOUND_MIXER_MIC] = {
{ CS_LEFT_INPUT_CONTROL, 4, 0, 0, 0, 1, 1 },
{ CS_RIGHT_INPUT_CONTROL, 4, 0, 0, 0, 1, 1 }
},
[SOUND_MIXER_IGAIN] = {
{ CS_LEFT_INPUT_CONTROL, 4, 0, 0, 1, 0 },
{ CS_RIGHT_INPUT_CONTROL, 4, 0, 0, 1, 0 }
}
};
static int
cs4231_mixer_init(struct snd_mixer *m)
{
u_int32_t v;
int i;
v = 0;
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (cs4231_mix_table[i][0].avail != 0)
v |= (1 << i);
mix_setdevs(m, v);
v = 0;
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (cs4231_mix_table[i][0].recdev != 0)
v |= (1 << i);
mix_setrecdevs(m, v);
return (0);
}
static void
cs4231_mixer_set_value(struct cs4231_softc *sc, const struct mix_table *mt,
u_int8_t v)
{
u_int8_t mask, reg;
u_int8_t old, shift, val;
if (mt->avail == 0 || mt->reg == CS_REG_NONE)
return;
reg = mt->reg;
if (mt->neg != 0)
val = 100 - v;
else
val = v;
mask = (1 << mt->bits) - 1;
val = ((val * mask) + 50) / 100;
shift = mt->shift;
val <<= shift;
if (v == 0)
val |= mt->mute;
old = cs4231_read(sc, reg);
old &= ~(mt->mute | (mask << shift));
val |= old;
if (reg == CS_LEFT_INPUT_CONTROL || reg == CS_RIGHT_INPUT_CONTROL) {
if ((val & (mask << shift)) != 0)
val |= ADC_INPUT_GAIN_ENABLE;
else
val &= ~ADC_INPUT_GAIN_ENABLE;
}
cs4231_write(sc, reg, val);
}
static int
cs4231_mixer_set(struct snd_mixer *m, u_int32_t dev, u_int32_t left,
u_int32_t right)
{
struct cs4231_softc *sc;
sc = mix_getdevinfo(m);
CS4231_LOCK(sc);
cs4231_mixer_set_value(sc, &cs4231_mix_table[dev][0], left);
cs4231_mixer_set_value(sc, &cs4231_mix_table[dev][1], right);
CS4231_UNLOCK(sc);
return (left | (right << 8));
}
static int
cs4231_mixer_setrecsrc(struct snd_mixer *m, u_int32_t src)
{
struct cs4231_softc *sc;
u_int8_t v;
sc = mix_getdevinfo(m);
switch (src) {
case SOUND_MASK_LINE:
v = CS_IN_LINE;
break;
case SOUND_MASK_CD:
v = CS_IN_DAC;
break;
case SOUND_MASK_MIC:
default:
v = CS_IN_MIC;
src = SOUND_MASK_MIC;
break;
}
CS4231_LOCK(sc);
cs4231_write(sc, CS_LEFT_INPUT_CONTROL,
(cs4231_read(sc, CS_LEFT_INPUT_CONTROL) & CS_IN_MASK) | v);
cs4231_write(sc, CS_RIGHT_INPUT_CONTROL,
(cs4231_read(sc, CS_RIGHT_INPUT_CONTROL) & CS_IN_MASK) | v);
CS4231_UNLOCK(sc);
return (src);
}
static void *
cs4231_chan_init(kobj_t obj, void *dev, struct snd_dbuf *b,
struct pcm_channel *c, int dir)
{
struct cs4231_softc *sc;
struct cs4231_channel *ch;
bus_dma_tag_t dmat;
sc = dev;
ch = (dir == PCMDIR_PLAY) ? &sc->sc_pch : &sc->sc_rch;
ch->parent = sc;
ch->channel = c;
ch->dir = dir;
ch->buffer = b;
if ((sc->sc_flags & CS4231_SBUS) != 0)
dmat = sc->sc_dmat[0];
else {
if (dir == PCMDIR_PLAY)
dmat = sc->sc_dmat[1];
else
dmat = sc->sc_dmat[0];
}
if (sndbuf_alloc(ch->buffer, dmat, 0, sc->sc_bufsz) != 0)
return (NULL);
DPRINTF(("%s channel addr: 0x%lx\n", dir == PCMDIR_PLAY ? "playback" :
"capture", sndbuf_getbufaddr(ch->buffer)));
return (ch);
}
static int
cs4231_chan_setformat(kobj_t obj, void *data, u_int32_t format)
{
struct cs4231_softc *sc;
struct cs4231_channel *ch;
u_int32_t encoding;
u_int8_t fs, v;
ch = data;
sc = ch->parent;
CS4231_LOCK(sc);
if (ch->format == format) {
CS4231_UNLOCK(sc);
return (0);
}
encoding = format & ~AFMT_STEREO;
fs = 0;
switch (encoding) {
case AFMT_U8:
fs = CS_AFMT_U8;
break;
case AFMT_MU_LAW:
fs = CS_AFMT_MU_LAW;
break;
case AFMT_S16_LE:
fs = CS_AFMT_S16_LE;
break;
case AFMT_A_LAW:
fs = CS_AFMT_A_LAW;
break;
case AFMT_IMA_ADPCM:
fs = CS_AFMT_IMA_ADPCM;
break;
case AFMT_S16_BE:
fs = CS_AFMT_S16_BE;
break;
default:
fs = CS_AFMT_U8;
format = AFMT_U8;
break;
}
if (format & AFMT_STEREO)
fs |= CS_AFMT_STEREO;
DPRINTF(("FORMAT: %s : 0x%x\n", ch->dir == PCMDIR_PLAY ? "playback" :
"capture", format));
v = cs4231_read(sc, CS_CLOCK_DATA_FORMAT);
v &= CS_CLOCK_DATA_FORMAT_MASK;
fs |= v;
cs4231_chan_fs(sc, ch->dir, fs);
ch->format = format;
CS4231_UNLOCK(sc);
return (0);
}
static int
cs4231_chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
typedef struct {
u_int32_t speed;
u_int8_t bits;
} speed_struct;
const static speed_struct speed_table[] = {
{5510, (0 << 1) | CLOCK_XTAL2},
{5510, (0 << 1) | CLOCK_XTAL2},
{6620, (7 << 1) | CLOCK_XTAL2},
{8000, (0 << 1) | CLOCK_XTAL1},
{9600, (7 << 1) | CLOCK_XTAL1},
{11025, (1 << 1) | CLOCK_XTAL2},
{16000, (1 << 1) | CLOCK_XTAL1},
{18900, (2 << 1) | CLOCK_XTAL2},
{22050, (3 << 1) | CLOCK_XTAL2},
{27420, (2 << 1) | CLOCK_XTAL1},
{32000, (3 << 1) | CLOCK_XTAL1},
{33075, (6 << 1) | CLOCK_XTAL2},
{33075, (4 << 1) | CLOCK_XTAL2},
{44100, (5 << 1) | CLOCK_XTAL2},
{48000, (6 << 1) | CLOCK_XTAL1},
};
struct cs4231_softc *sc;
struct cs4231_channel *ch;
int i, n, sel;
u_int8_t fs;
ch = data;
sc = ch->parent;
CS4231_LOCK(sc);
if (ch->speed == speed) {
CS4231_UNLOCK(sc);
return (speed);
}
n = sizeof(speed_table) / sizeof(speed_struct);
for (i = 1, sel =0; i < n - 1; i++)
if (abs(speed - speed_table[i].speed) <
abs(speed - speed_table[sel].speed))
sel = i;
DPRINTF(("SPEED: %s : %dHz -> %dHz\n", ch->dir == PCMDIR_PLAY ?
"playback" : "capture", speed, speed_table[sel].speed));
speed = speed_table[sel].speed;
fs = cs4231_read(sc, CS_CLOCK_DATA_FORMAT);
fs &= ~CS_CLOCK_DATA_FORMAT_MASK;
fs |= speed_table[sel].bits;
cs4231_chan_fs(sc, ch->dir, fs);
ch->speed = speed;
CS4231_UNLOCK(sc);
return (speed);
}
static void
cs4231_chan_fs(struct cs4231_softc *sc, int dir, u_int8_t fs)
{
int i, doreset;
#ifdef CS4231_AUTO_CALIBRATION
u_int8_t v;
#endif
CS4231_LOCK_ASSERT(sc);
/* set autocalibration */
doreset = 0;
#ifdef CS4231_AUTO_CALIBRATION
v = cs4231_read(sc, CS_INTERFACE_CONFIG) | AUTO_CAL_ENABLE;
CS_WRITE(sc, CS4231_IADDR, MODE_CHANGE_ENABLE);
CS_WRITE(sc, CS4231_IADDR, MODE_CHANGE_ENABLE | CS_INTERFACE_CONFIG);
CS_WRITE(sc, CS4231_IDATA, v);
#endif
/*
* We always need to write CS_CLOCK_DATA_FORMAT register since
* the clock frequency is shared with playback/capture.
*/
CS_WRITE(sc, CS4231_IADDR, MODE_CHANGE_ENABLE | CS_CLOCK_DATA_FORMAT);
CS_WRITE(sc, CS4231_IDATA, fs);
CS_READ(sc, CS4231_IDATA);
CS_READ(sc, CS4231_IDATA);
for (i = CS_TIMEOUT;
i && CS_READ(sc, CS4231_IADDR) == CS_IN_INIT; i--)
DELAY(10);
if (i == 0) {
device_printf(sc->sc_dev, "timeout setting playback speed\n");
doreset++;
}
/*
* capture channel
* cs4231 doesn't allow seperate fs setup for playback/capture.
* I believe this will break full-duplex operation.
*/
if (dir == PCMDIR_REC) {
CS_WRITE(sc, CS4231_IADDR, MODE_CHANGE_ENABLE | CS_REC_FORMAT);
CS_WRITE(sc, CS4231_IDATA, fs);
CS_READ(sc, CS4231_IDATA);
CS_READ(sc, CS4231_IDATA);
for (i = CS_TIMEOUT;
i && CS_READ(sc, CS4231_IADDR) == CS_IN_INIT; i--)
DELAY(10);
if (i == 0) {
device_printf(sc->sc_dev,
"timeout setting capture format\n");
doreset++;
}
}
CS_WRITE(sc, CS4231_IADDR, 0);
for (i = CS_TIMEOUT;
i && CS_READ(sc, CS4231_IADDR) == CS_IN_INIT; i--)
DELAY(10);
if (i == 0) {
device_printf(sc->sc_dev, "timeout waiting for !MCE\n");
doreset++;
}
#ifdef CS4231_AUTO_CALIBRATION
CS_WRITE(sc, CS4231_IADDR, CS_TEST_AND_INIT);
for (i = CS_TIMEOUT;
i && CS_READ(sc, CS4231_IDATA) & AUTO_CAL_IN_PROG; i--)
DELAY(10);
if (i == 0) {
device_printf(sc->sc_dev,
"timeout waiting for autocalibration\n");
doreset++;
}
#endif
if (doreset) {
/*
* Maybe the last resort to avoid a dreadful message like
* "pcm0:play:0: play interrupt timeout, channel dead" would
* be hardware reset.
*/
device_printf(sc->sc_dev, "trying to hardware reset\n");
cs4231_disable(sc);
cs4231_enable(sc, CODEC_COLD_RESET);
CS4231_UNLOCK(sc); /* XXX */
if (mixer_reinit(sc->sc_dev) != 0)
device_printf(sc->sc_dev,
"unable to reinitialize the mixer\n");
CS4231_LOCK(sc);
}
}
static int
cs4231_chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
struct cs4231_softc *sc;
struct cs4231_channel *ch;
int nblks, error;
ch = data;
sc = ch->parent;
if (blocksize > CS4231_MAX_BLK_SZ)
blocksize = CS4231_MAX_BLK_SZ;
nblks = sc->sc_bufsz / blocksize;
error = sndbuf_resize(ch->buffer, nblks, blocksize);
if (error != 0)
device_printf(sc->sc_dev,
"unable to block size, blksz = %d, error = %d\n",
blocksize, error);
return (blocksize);
}
static int
cs4231_chan_trigger(kobj_t obj, void *data, int go)
{
struct cs4231_channel *ch;
ch = data;
switch (go) {
case PCMTRIG_EMLDMAWR:
case PCMTRIG_EMLDMARD:
break;
case PCMTRIG_START:
cs4231_trigger(ch);
break;
case PCMTRIG_ABORT:
case PCMTRIG_STOP:
cs4231_halt(ch);
break;
default:
break;
}
return (0);
}
static int
cs4231_chan_getptr(kobj_t obj, void *data)
{
struct cs4231_softc *sc;
struct cs4231_channel *ch;
u_int32_t cur;
int ptr, sz;
ch = data;
sc = ch->parent;
CS4231_LOCK(sc);
if ((sc->sc_flags & CS4231_SBUS) != 0)
cur = (ch->dir == PCMDIR_PLAY) ? APC_READ(sc, APC_PVA) :
APC_READ(sc, APC_CVA);
else
cur = (ch->dir == PCMDIR_PLAY) ? EBDMA_P_READ(sc, EBDMA_DADDR) :
EBDMA_C_READ(sc, EBDMA_DADDR);
sz = sndbuf_getsize(ch->buffer);
ptr = cur - sndbuf_getbufaddr(ch->buffer) + sz;
CS4231_UNLOCK(sc);
ptr %= sz;
return (ptr);
}
static struct pcmchan_caps *
cs4231_chan_getcaps(kobj_t obj, void *data)
{
return (&cs4231_caps);
}
static void
cs4231_trigger(struct cs4231_channel *ch)
{
struct cs4231_softc *sc;
sc = ch->parent;
if ((sc->sc_flags & CS4231_SBUS) != 0)
cs4231_apcdma_trigger(sc, ch);
else
cs4231_ebdma_trigger(sc, ch);
}
static void
cs4231_apcdma_trigger(struct cs4231_softc *sc, struct cs4231_channel *ch)
{
u_int32_t csr, togo;
u_int32_t nextaddr;
CS4231_LOCK(sc);
if (ch->locked) {
device_printf(sc->sc_dev, "%s channel already triggered\n",
ch->dir == PCMDIR_PLAY ? "playback" : "capture");
CS4231_UNLOCK(sc);
return;
}
nextaddr = sndbuf_getbufaddr(ch->buffer);
togo = sndbuf_getsize(ch->buffer) / 2;
if (togo > CS4231_MAX_APC_DMA_SZ)
togo = CS4231_MAX_APC_DMA_SZ;
ch->togo = togo;
if (ch->dir == PCMDIR_PLAY) {
DPRINTF(("TRG: PNVA = 0x%x, togo = 0x%x\n", nextaddr, togo));
cs4231_read(sc, CS_TEST_AND_INIT); /* clear pending error */
csr = APC_READ(sc, APC_CSR);
APC_WRITE(sc, APC_PNVA, nextaddr);
APC_WRITE(sc, APC_PNC, togo);
if ((csr & APC_CSR_PDMA_GO) == 0 ||
(csr & APC_CSR_PPAUSE) != 0) {
APC_WRITE(sc, APC_CSR, APC_READ(sc, APC_CSR) &
~(APC_CSR_PIE | APC_CSR_PPAUSE));
APC_WRITE(sc, APC_CSR, APC_READ(sc, APC_CSR) |
APC_CSR_GIE | APC_CSR_PIE | APC_CSR_EIE |
APC_CSR_EI | APC_CSR_PMIE | APC_CSR_PDMA_GO);
cs4231_write(sc, CS_INTERFACE_CONFIG,
cs4231_read(sc, CS_INTERFACE_CONFIG) |
PLAYBACK_ENABLE);
}
/* load next address */
if (APC_READ(sc, APC_CSR) & APC_CSR_PD) {
nextaddr += togo;
APC_WRITE(sc, APC_PNVA, nextaddr);
APC_WRITE(sc, APC_PNC, togo);
}
} else {
DPRINTF(("TRG: CNVA = 0x%x, togo = 0x%x\n", nextaddr, togo));
cs4231_read(sc, CS_TEST_AND_INIT); /* clear pending error */
APC_WRITE(sc, APC_CNVA, nextaddr);
APC_WRITE(sc, APC_CNC, togo);
csr = APC_READ(sc, APC_CSR);
if ((csr & APC_CSR_CDMA_GO) == 0 ||
(csr & APC_CSR_CPAUSE) != 0) {
csr &= APC_CSR_CPAUSE;
csr |= APC_CSR_GIE | APC_CSR_CMIE | APC_CSR_CIE |
APC_CSR_EI | APC_CSR_CDMA_GO;
APC_WRITE(sc, APC_CSR, csr);
cs4231_write(sc, CS_INTERFACE_CONFIG,
cs4231_read(sc, CS_INTERFACE_CONFIG) |
CAPTURE_ENABLE);
}
/* load next address */
if (APC_READ(sc, APC_CSR) & APC_CSR_CD) {
nextaddr += togo;
APC_WRITE(sc, APC_CNVA, nextaddr);
APC_WRITE(sc, APC_CNC, togo);
}
}
ch->nextaddr = nextaddr;
ch->locked = 1;
CS4231_UNLOCK(sc);
}
static void
cs4231_ebdma_trigger(struct cs4231_softc *sc, struct cs4231_channel *ch)
{
u_int32_t csr, togo;
u_int32_t nextaddr;
CS4231_LOCK(sc);
if (ch->locked) {
device_printf(sc->sc_dev, "%s channel already triggered\n",
ch->dir == PCMDIR_PLAY ? "playback" : "capture");
CS4231_UNLOCK(sc);
return;
}
nextaddr = sndbuf_getbufaddr(ch->buffer);
togo = sndbuf_getsize(ch->buffer) / 2;
if (togo % 64 == 0)
sc->sc_burst = EBDCSR_BURST_16;
else if (togo % 32 == 0)
sc->sc_burst = EBDCSR_BURST_8;
else if (togo % 16 == 0)
sc->sc_burst = EBDCSR_BURST_4;
else
sc->sc_burst = EBDCSR_BURST_1;
ch->togo = togo;
DPRINTF(("TRG: DNAR = 0x%x, togo = 0x%x\n", nextaddr, togo));
if (ch->dir == PCMDIR_PLAY) {
cs4231_read(sc, CS_TEST_AND_INIT); /* clear pending error */
csr = EBDMA_P_READ(sc, EBDMA_DCSR);
if (csr & EBDCSR_DMAEN) {
EBDMA_P_WRITE(sc, EBDMA_DCNT, togo);
EBDMA_P_WRITE(sc, EBDMA_DADDR, nextaddr);
} else {
EBDMA_P_WRITE(sc, EBDMA_DCSR, EBDCSR_RESET);
EBDMA_P_WRITE(sc, EBDMA_DCSR, sc->sc_burst);
EBDMA_P_WRITE(sc, EBDMA_DCNT, togo);
EBDMA_P_WRITE(sc, EBDMA_DADDR, nextaddr);
EBDMA_P_WRITE(sc, EBDMA_DCSR, sc->sc_burst |
EBDCSR_DMAEN | EBDCSR_INTEN | EBDCSR_CNTEN |
EBDCSR_NEXTEN);
cs4231_write(sc, CS_INTERFACE_CONFIG,
cs4231_read(sc, CS_INTERFACE_CONFIG) |
PLAYBACK_ENABLE);
}
/* load next address */
if (EBDMA_P_READ(sc, EBDMA_DCSR) & EBDCSR_A_LOADED) {
nextaddr += togo;
EBDMA_P_WRITE(sc, EBDMA_DCNT, togo);
EBDMA_P_WRITE(sc, EBDMA_DADDR, nextaddr);
}
} else {
cs4231_read(sc, CS_TEST_AND_INIT); /* clear pending error */
csr = EBDMA_C_READ(sc, EBDMA_DCSR);
if (csr & EBDCSR_DMAEN) {
EBDMA_C_WRITE(sc, EBDMA_DCNT, togo);
EBDMA_C_WRITE(sc, EBDMA_DADDR, nextaddr);
} else {
EBDMA_C_WRITE(sc, EBDMA_DCSR, EBDCSR_RESET);
EBDMA_C_WRITE(sc, EBDMA_DCSR, sc->sc_burst);
EBDMA_C_WRITE(sc, EBDMA_DCNT, togo);
EBDMA_C_WRITE(sc, EBDMA_DADDR, nextaddr);
EBDMA_C_WRITE(sc, EBDMA_DCSR, sc->sc_burst |
EBDCSR_WRITE | EBDCSR_DMAEN | EBDCSR_INTEN |
EBDCSR_CNTEN | EBDCSR_NEXTEN);
cs4231_write(sc, CS_INTERFACE_CONFIG,
cs4231_read(sc, CS_INTERFACE_CONFIG) |
CAPTURE_ENABLE);
}
/* load next address */
if (EBDMA_C_READ(sc, EBDMA_DCSR) & EBDCSR_A_LOADED) {
nextaddr += togo;
EBDMA_C_WRITE(sc, EBDMA_DCNT, togo);
EBDMA_C_WRITE(sc, EBDMA_DADDR, nextaddr);
}
}
ch->nextaddr = nextaddr;
ch->locked = 1;
CS4231_UNLOCK(sc);
}
static void
cs4231_halt(struct cs4231_channel *ch)
{
struct cs4231_softc *sc;
u_int8_t status;
int i;
sc = ch->parent;
CS4231_LOCK(sc);
if (ch->locked == 0) {
CS4231_UNLOCK(sc);
return;
}
if (ch->dir == PCMDIR_PLAY ) {
if ((sc->sc_flags & CS4231_SBUS) != 0) {
/* XXX Kills some capture bits */
APC_WRITE(sc, APC_CSR, APC_READ(sc, APC_CSR) &
~(APC_CSR_EI | APC_CSR_GIE | APC_CSR_PIE |
APC_CSR_EIE | APC_CSR_PDMA_GO | APC_CSR_PMIE));
} else {
EBDMA_P_WRITE(sc, EBDMA_DCSR,
EBDMA_P_READ(sc, EBDMA_DCSR) & ~EBDCSR_DMAEN);
}
/* Waiting for playback FIFO to empty */
status = cs4231_read(sc, CS_TEST_AND_INIT);
for (i = CS_TIMEOUT;
i && (status & PLAYBACK_UNDERRUN) == 0; i--) {
DELAY(5);
status = cs4231_read(sc, CS_TEST_AND_INIT);
}
if (i == 0)
device_printf(sc->sc_dev, "timeout waiting for "
"playback FIFO drain\n");
cs4231_write(sc, CS_INTERFACE_CONFIG,
cs4231_read(sc, CS_INTERFACE_CONFIG) & (~PLAYBACK_ENABLE));
} else {
if ((sc->sc_flags & CS4231_SBUS) != 0) {
/* XXX Kills some playback bits */
APC_WRITE(sc, APC_CSR, APC_CSR_CAPTURE_PAUSE);
} else {
EBDMA_C_WRITE(sc, EBDMA_DCSR,
EBDMA_C_READ(sc, EBDMA_DCSR) & ~EBDCSR_DMAEN);
}
/* Waiting for capture FIFO to empty */
status = cs4231_read(sc, CS_TEST_AND_INIT);
for (i = CS_TIMEOUT;
i && (status & CAPTURE_OVERRUN) == 0; i--) {
DELAY(5);
status = cs4231_read(sc, CS_TEST_AND_INIT);
}
if (i == 0)
device_printf(sc->sc_dev, "timeout waiting for "
"capture FIFO drain\n");
cs4231_write(sc, CS_INTERFACE_CONFIG,
cs4231_read(sc, CS_INTERFACE_CONFIG) & (~CAPTURE_ENABLE));
}
ch->locked = 0;
CS4231_UNLOCK(sc);
}
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