NetBSD-5.0.2/sys/arch/dreamcast/dev/g2/aica.c
/* $NetBSD: aica.c,v 1.18 2008/08/01 20:19:49 marcus Exp $ */
/*
* Copyright (c) 2003 SHIMIZU Ryo <ryo@misakimix.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.
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: aica.c,v 1.18 2008/08/01 20:19:49 marcus Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/mulaw.h>
#include <dev/auconv.h>
#include <machine/bus.h>
#include <machine/sysasicvar.h>
#include <dreamcast/dev/g2/g2busvar.h>
#include <dreamcast/dev/g2/aicavar.h>
#include <dreamcast/dev/microcode/aica_armcode.h>
#define AICA_REG_ADDR 0x00700000
#define AICA_RAM_START 0x00800000
#define AICA_RAM_SIZE 0x00200000
#define AICA_NCHAN 64
#define AICA_TIMEOUT 0x1800
struct aica_softc {
struct device sc_dev; /* base device */
bus_space_tag_t sc_memt;
bus_space_handle_t sc_aica_regh;
bus_space_handle_t sc_aica_memh;
/* audio property */
int sc_open;
int sc_encodings;
int sc_precision;
int sc_channels;
int sc_rate;
void (*sc_intr)(void *);
void *sc_intr_arg;
int sc_output_master;
int sc_output_gain[2];
#define AICA_VOLUME_LEFT 0
#define AICA_VOLUME_RIGHT 1
/* work for output */
void *sc_buffer;
void *sc_buffer_start;
void *sc_buffer_end;
int sc_blksize;
int sc_nextfill;
};
const struct {
const char *name;
int encoding;
int precision;
} aica_encodings[] = {
{AudioEadpcm, AUDIO_ENCODING_ADPCM, 4},
{AudioEslinear, AUDIO_ENCODING_SLINEAR, 8},
{AudioEulinear, AUDIO_ENCODING_ULINEAR, 8},
{AudioEmulaw, AUDIO_ENCODING_ULAW, 8},
{AudioEalaw, AUDIO_ENCODING_ALAW, 8},
{AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16},
{AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE, 16},
{AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE, 16},
{AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE, 16},
};
#define AICA_NFORMATS 5
static const struct audio_format aica_formats[AICA_NFORMATS] = {
{NULL, AUMODE_PLAY, AUDIO_ENCODING_ADPCM, 4, 4,
1, AUFMT_MONAURAL, 0, {1, 65536}},
{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
1, AUFMT_MONAURAL, 0, {1, 65536}},
{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
2, AUFMT_STEREO, 0, {1, 65536}},
{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 8, 8,
1, AUFMT_MONAURAL, 0, {1, 65536}},
{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 8, 8,
2, AUFMT_STEREO, 0, {1, 65536}},
};
int aica_match(struct device *, struct cfdata *, void *);
void aica_attach(struct device *, struct device *, void *);
int aica_print(void *, const char *);
CFATTACH_DECL(aica, sizeof(struct aica_softc), aica_match, aica_attach,
NULL, NULL);
const struct audio_device aica_device = {
"Dreamcast Sound",
"",
"aica"
};
inline static void aica_g2fifo_wait(void);
void aica_enable(struct aica_softc *);
void aica_disable(struct aica_softc *);
void aica_memwrite(struct aica_softc *, bus_size_t, uint32_t *, int);
void aica_ch2p16write(struct aica_softc *, bus_size_t, uint16_t *, int);
void aica_ch2p8write(struct aica_softc *, bus_size_t, uint8_t *, int);
void aica_command(struct aica_softc *, uint32_t);
void aica_sendparam(struct aica_softc *, uint32_t, int, int);
void aica_play(struct aica_softc *, int, int, int, int);
void aica_fillbuffer(struct aica_softc *);
/* intr */
int aica_intr(void *);
/* for audio */
int aica_open(void *, int);
void aica_close(void *);
int aica_query_encoding(void *, struct audio_encoding *);
int aica_set_params(void *, int, int, audio_params_t *,
audio_params_t *, stream_filter_list_t *, stream_filter_list_t *);
int aica_round_blocksize(void *, int, int, const audio_params_t *);
size_t aica_round_buffersize(void *, int, size_t);
int aica_trigger_output(void *, void *, void *, int, void (*)(void *), void *,
const audio_params_t *);
int aica_trigger_input(void *, void *, void *, int, void (*)(void *), void *,
const audio_params_t *);
int aica_halt_output(void *);
int aica_halt_input(void *);
int aica_getdev(void *, struct audio_device *);
int aica_set_port(void *, mixer_ctrl_t *);
int aica_get_port(void *, mixer_ctrl_t *);
int aica_query_devinfo(void *, mixer_devinfo_t *);
void aica_encode(int, int, int, int, u_char *, u_short **);
int aica_get_props(void *);
const struct audio_hw_if aica_hw_if = {
aica_open,
aica_close,
NULL, /* aica_drain */
aica_query_encoding,
aica_set_params,
aica_round_blocksize,
NULL, /* aica_commit_setting */
NULL, /* aica_init_output */
NULL, /* aica_init_input */
NULL, /* aica_start_output */
NULL, /* aica_start_input */
aica_halt_output,
aica_halt_input,
NULL, /* aica_speaker_ctl */
aica_getdev,
NULL, /* aica_setfd */
aica_set_port,
aica_get_port,
aica_query_devinfo,
NULL, /* aica_allocm */
NULL, /* aica_freem */
aica_round_buffersize, /* aica_round_buffersize */
NULL, /* aica_mappage */
aica_get_props,
aica_trigger_output,
aica_trigger_input,
NULL, /* aica_dev_ioctl */
};
int
aica_match(struct device *parent, struct cfdata *cf, void *aux)
{
static int aica_matched = 0;
if (aica_matched)
return 0;
aica_matched = 1;
return 1;
}
void
aica_attach(struct device *parent, struct device *self, void *aux)
{
struct aica_softc *sc;
struct g2bus_attach_args *ga;
int i;
sc = (struct aica_softc *)self;
ga = aux;
sc->sc_memt = ga->ga_memt;
if (bus_space_map(sc->sc_memt, AICA_REG_ADDR, 0x3000, 0,
&sc->sc_aica_regh) != 0) {
printf(": can't map AICA register space\n");
return;
}
if (bus_space_map(sc->sc_memt, AICA_RAM_START, AICA_RAM_SIZE, 0,
&sc->sc_aica_memh) != 0) {
printf(": can't map AICA memory space\n");
return;
}
printf(": ARM7 Sound Processing Unit\n");
aica_disable(sc);
for (i = 0; i < AICA_NCHAN; i++)
bus_space_write_4(sc->sc_memt,sc->sc_aica_regh, i << 7,
((bus_space_read_4(sc->sc_memt, sc->sc_aica_regh, i << 7)
& ~0x4000) | 0x8000));
/* load microcode, and clear memory */
bus_space_set_region_4(sc->sc_memt, sc->sc_aica_memh,
0, 0, AICA_RAM_SIZE / 4);
aica_memwrite(sc, 0, aica_armcode, sizeof(aica_armcode));
aica_enable(sc);
printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname,
sysasic_intr_string(SYSASIC_IRL9));
sysasic_intr_establish(SYSASIC_EVENT_AICA, IPL_BIO, SYSASIC_IRL9,
aica_intr, sc);
audio_attach_mi(&aica_hw_if, sc, &sc->sc_dev);
/* init parameters */
sc->sc_output_master = 255;
sc->sc_output_gain[AICA_VOLUME_LEFT] = 255;
sc->sc_output_gain[AICA_VOLUME_RIGHT] = 255;
}
void
aica_enable(struct aica_softc *sc)
{
bus_space_write_4(sc->sc_memt, sc->sc_aica_regh, 0x28a8, 24);
bus_space_write_4(sc->sc_memt, sc->sc_aica_regh, 0x2c00,
bus_space_read_4(sc->sc_memt, sc->sc_aica_regh, 0x2c00) & ~1);
}
void
aica_disable(struct aica_softc *sc)
{
bus_space_write_4(sc->sc_memt, sc->sc_aica_regh, 0x2c00,
bus_space_read_4(sc->sc_memt, sc->sc_aica_regh, 0x2c00) | 1);
}
inline static void
aica_g2fifo_wait(void)
{
int i;
i = AICA_TIMEOUT;
while (--i > 0)
if ((*(volatile uint32_t *)0xa05f688c) & 0x11)
break;
}
void
aica_memwrite(struct aica_softc *sc, bus_size_t offset, uint32_t *src, int len)
{
int n;
KASSERT((offset & 3) == 0);
n = (len + 3) / 4; /* uint32_t * n (aligned) */
aica_g2fifo_wait();
bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
offset, src, n);
}
void
aica_ch2p16write(struct aica_softc *sc, bus_size_t offset, uint16_t *src,
int len)
{
union {
uint32_t w[8];
uint16_t s[16];
} buf;
uint16_t *p;
int i;
KASSERT((offset & 3) == 0);
while (len >= 32) {
p = buf.s;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
aica_g2fifo_wait();
bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
offset, buf.w , 32 / 4);
offset += sizeof(uint16_t) * 16;
len -= 32;
}
if (len / 2 > 0) {
p = buf.s;
for (i = 0; i < len / 2; i++) {
*p++ = *src++; src++;
}
aica_g2fifo_wait();
bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
offset, buf.w, len / 4);
}
}
void
aica_ch2p8write(struct aica_softc *sc, bus_size_t offset, uint8_t *src,
int len)
{
uint32_t buf[8];
uint8_t *p;
int i;
KASSERT((offset & 3) == 0);
while (len >= 32) {
p = (uint8_t *)buf;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
*p++ = *src++; src++;
aica_g2fifo_wait();
bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
offset, buf, 32 / 4);
offset += 32;
len -= 32;
}
if (len) {
p = (uint8_t *)buf;
for (i = 0; i < len; i++)
*p++ = *src++; src++;
aica_g2fifo_wait();
bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
offset, buf, len / 4);
}
}
int
aica_open(void *addr, int flags)
{
struct aica_softc *sc;
sc = addr;
if (sc->sc_open)
return EBUSY;
sc->sc_intr = NULL;
sc->sc_open = 1;
return 0;
}
void
aica_close(void *addr)
{
struct aica_softc *sc;
sc = addr;
sc->sc_open = 0;
sc->sc_intr = NULL;
}
int
aica_query_encoding(void *addr, struct audio_encoding *fp)
{
if (fp->index >= sizeof(aica_encodings) / sizeof(aica_encodings[0]))
return EINVAL;
strcpy(fp->name, aica_encodings[fp->index].name);
fp->encoding = aica_encodings[fp->index].encoding;
fp->precision = aica_encodings[fp->index].precision;
fp->flags = 0;
return 0;
}
int
aica_set_params(void *addr, int setmode, int usemode,
audio_params_t *play, audio_params_t *rec,
stream_filter_list_t *pfil, stream_filter_list_t *rfil)
{
struct aica_softc *sc;
const audio_params_t *hw;
int i;
i = auconv_set_converter(aica_formats, AICA_NFORMATS,
AUMODE_PLAY, play, false, pfil);
if (i < 0)
return EINVAL;
hw = pfil->req_size > 0 ? &pfil->filters[0].param : play;
sc = addr;
sc->sc_precision = hw->precision;
sc->sc_channels = hw->channels;
sc->sc_rate = hw->sample_rate;
sc->sc_encodings = hw->encoding;
return 0;
}
int
aica_round_blocksize(void *addr, int blk, int mode, const audio_params_t *param)
{
struct aica_softc *sc;
sc = addr;
switch (sc->sc_precision) {
case 4:
if (sc->sc_channels == 1)
return AICA_DMABUF_SIZE / 4;
else
return AICA_DMABUF_SIZE / 2;
break;
case 8:
if (sc->sc_channels == 1)
return AICA_DMABUF_SIZE / 2;
else
return AICA_DMABUF_SIZE;
break;
case 16:
if (sc->sc_channels == 1)
return AICA_DMABUF_SIZE;
else
return AICA_DMABUF_SIZE * 2;
break;
default:
break;
}
return AICA_DMABUF_SIZE / 4;
}
size_t
aica_round_buffersize(void *addr, int dir, size_t bufsize)
{
if (dir == AUMODE_PLAY)
return 65536;
return 512; /* XXX: AUMINBUF */
}
void
aica_command(struct aica_softc *sc, uint32_t command)
{
bus_space_write_4(sc->sc_memt, sc->sc_aica_memh,
AICA_ARM_CMD_COMMAND, command);
bus_space_write_4(sc->sc_memt,sc->sc_aica_memh, AICA_ARM_CMD_SERIAL,
bus_space_read_4(sc->sc_memt, sc->sc_aica_memh,
AICA_ARM_CMD_SERIAL) + 1);
}
void
aica_sendparam(struct aica_softc *sc, uint32_t command,
int32_t lparam, int32_t rparam)
{
bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
AICA_ARM_CMD_LPARAM, lparam);
bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
AICA_ARM_CMD_RPARAM, rparam);
aica_command(sc, command);
}
void
aica_play(struct aica_softc *sc, int blksize, int channel, int rate, int prec)
{
bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
AICA_ARM_CMD_BLOCKSIZE, blksize);
bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
AICA_ARM_CMD_CHANNEL, channel);
bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
AICA_ARM_CMD_RATE, rate);
bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
AICA_ARM_CMD_PRECISION, prec);
aica_command(sc, AICA_COMMAND_PLAY);
}
void
aica_fillbuffer(struct aica_softc *sc)
{
if (sc->sc_channels == 2) {
if (sc->sc_precision == 16) {
aica_ch2p16write(sc,
AICA_DMABUF_LEFT + sc->sc_nextfill,
(uint16_t *)sc->sc_buffer + 0, sc->sc_blksize / 2);
aica_ch2p16write(sc,
AICA_DMABUF_RIGHT + sc->sc_nextfill,
(uint16_t *)sc->sc_buffer + 1, sc->sc_blksize / 2);
} else if (sc->sc_precision == 8) {
aica_ch2p8write(sc, AICA_DMABUF_LEFT + sc->sc_nextfill,
(uint8_t *)sc->sc_buffer + 0, sc->sc_blksize / 2);
aica_ch2p8write(sc, AICA_DMABUF_RIGHT + sc->sc_nextfill,
(uint8_t *)sc->sc_buffer + 1, sc->sc_blksize / 2);
}
} else {
aica_memwrite(sc, AICA_DMABUF_MONO + sc->sc_nextfill,
sc->sc_buffer, sc->sc_blksize);
}
sc->sc_buffer = (int8_t *)sc->sc_buffer + sc->sc_blksize;
if (sc->sc_buffer >= sc->sc_buffer_end)
sc->sc_buffer = sc->sc_buffer_start;
sc->sc_nextfill ^= sc->sc_blksize / sc->sc_channels;
}
int
aica_intr(void *arg)
{
struct aica_softc *sc;
sc = arg;
aica_fillbuffer(sc);
/* call audio interrupt handler (audio_pint()) */
if (sc->sc_open && sc->sc_intr != NULL) {
(*(sc->sc_intr))(sc->sc_intr_arg);
}
/* clear SPU interrupt */
bus_space_write_4(sc->sc_memt, sc->sc_aica_regh, 0x28bc, 0x20);
return 1;
}
int
aica_trigger_output(void *addr, void *start, void *end, int blksize,
void (*intr)(void *), void *arg, const audio_params_t *param)
{
struct aica_softc *sc;
sc = addr;
aica_command(sc, AICA_COMMAND_INIT);
tsleep(aica_trigger_output, PWAIT, "aicawait", hz / 20);
sc->sc_buffer_start = sc->sc_buffer = start;
sc->sc_buffer_end = end;
sc->sc_blksize = blksize;
sc->sc_nextfill = 0;
sc->sc_intr = intr;
sc->sc_intr_arg = arg;
/* fill buffers in advance */
aica_intr(sc);
aica_intr(sc);
/* ...and start playing */
aica_play(sc, blksize / sc->sc_channels, sc->sc_channels, sc->sc_rate,
sc->sc_precision);
return 0;
}
int
aica_trigger_input(void *addr, void *start, void *end, int blksize,
void (*intr)(void *), void *arg, const audio_params_t *param)
{
return ENODEV;
}
int
aica_halt_output(void *addr)
{
struct aica_softc *sc;
sc = addr;
aica_command(sc, AICA_COMMAND_STOP);
return 0;
}
int
aica_halt_input(void *addr)
{
return ENODEV;
}
int
aica_getdev(void *addr, struct audio_device *ret)
{
*ret = aica_device;
return 0;
}
int
aica_set_port(void *addr, mixer_ctrl_t *mc)
{
struct aica_softc *sc;
sc = addr;
switch (mc->dev) {
case AICA_MASTER_VOL:
sc->sc_output_master =
mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] & 0xff;
aica_sendparam(sc, AICA_COMMAND_MVOL,
sc->sc_output_master, sc->sc_output_master);
break;
case AICA_OUTPUT_GAIN:
sc->sc_output_gain[AICA_VOLUME_LEFT] =
mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] & 0xff;
sc->sc_output_gain[AICA_VOLUME_RIGHT] =
mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] & 0xff;
aica_sendparam(sc, AICA_COMMAND_VOL,
sc->sc_output_gain[AICA_VOLUME_LEFT],
sc->sc_output_gain[AICA_VOLUME_RIGHT]);
break;
default:
return EINVAL;
}
return 0;
}
int
aica_get_port(void *addr, mixer_ctrl_t *mc)
{
struct aica_softc *sc;
sc = addr;
switch (mc->dev) {
case AICA_MASTER_VOL:
if (mc->un.value.num_channels != 1)
return EINVAL;
mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
L16TO256(L256TO16(sc->sc_output_master));
break;
case AICA_OUTPUT_GAIN:
mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
sc->sc_output_gain[AICA_VOLUME_LEFT];
mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
sc->sc_output_gain[AICA_VOLUME_RIGHT];
break;
default:
return EINVAL;
}
return 0;
}
int
aica_query_devinfo(void *addr, mixer_devinfo_t *md)
{
switch (md->index) {
case AICA_MASTER_VOL:
md->type = AUDIO_MIXER_VALUE;
md->mixer_class = AICA_OUTPUT_CLASS;
md->prev = md->next = AUDIO_MIXER_LAST;
strcpy(md->label.name, AudioNmaster);
md->un.v.num_channels = 1;
strcpy(md->un.v.units.name, AudioNvolume);
return 0;
case AICA_OUTPUT_GAIN:
md->type = AUDIO_MIXER_VALUE;
md->mixer_class = AICA_OUTPUT_CLASS;
md->prev = md->next = AUDIO_MIXER_LAST;
strcpy(md->label.name, AudioNoutput);
md->un.v.num_channels = 2;
strcpy(md->label.name, AudioNvolume);
return 0;
case AICA_OUTPUT_CLASS:
md->type = AUDIO_MIXER_CLASS;
md->mixer_class = AICA_OUTPUT_CLASS;
md->next = md->prev = AUDIO_MIXER_LAST;
strcpy(md->label.name, AudioCoutputs);
return 0;
}
return ENXIO;
}
int
aica_get_props(void *addr)
{
return 0;
}