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freebsd-nq/sys/dev/sound/pci/maestro.c
Cameron Grant 0f55ac6c1a kobjify. 
this gives us several benefits, including:

* easier extensibility- new optional methods can be added to
  ac97/mixer/channel classes without having to fixup every driver.

* forward compatibility for drivers, provided no new mandatory methods are
  added.
2000-12-18 01:36:41 +00:00

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/*-
* Copyright (c) 2000 Taku YAMAMOTO <taku@cent.saitama-u.ac.jp>
* 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.
*
* $Id: maestro.c,v 1.12 2000/09/06 03:32:34 taku Exp $
* $FreeBSD$
*/
/*
* Credits:
*
* Part of this code (especially in many magic numbers) was heavily inspired
* by the Linux driver originally written by
* Alan Cox <alan.cox@linux.org>, modified heavily by
* Zach Brown <zab@zabbo.net>.
*
* busdma()-ize and buffer size reduction were suggested by
* Cameron Grant <gandalf@vilnya.demon.co.uk>.
* Also he showed me the way to use busdma() suite.
*
* Internal speaker problems on NEC VersaPro's and Dell Inspiron 7500
* were looked at by
* Munehiro Matsuda <haro@tk.kubota.co.jp>,
* who brought patches based on the Linux driver with some simplification.
*/
#include <dev/sound/pcm/sound.h>
#include <dev/sound/pcm/ac97.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <dev/sound/pci/maestro_reg.h>
#define inline __inline
/*
* PCI IDs of supported chips:
*
* MAESTRO-1 0x01001285
* MAESTRO-2 0x1968125d
* MAESTRO-2E 0x1978125d
*/
#define MAESTRO_1_PCI_ID 0x01001285
#define MAESTRO_2_PCI_ID 0x1968125d
#define MAESTRO_2E_PCI_ID 0x1978125d
#define NEC_SUBID1 0x80581033 /* Taken from Linux driver */
#define NEC_SUBID2 0x803c1033 /* NEC VersaProNX VA26D */
#ifndef AGG_MAXPLAYCH
# define AGG_MAXPLAYCH 4
#endif
#define AGG_BUFSIZ 0x4000 /* 0x1000, but gets underflows */
/* -----------------------------
* Data structures.
*/
struct agg_chinfo {
struct agg_info *parent;
pcm_channel *channel;
snd_dbuf *buffer;
bus_addr_t offset;
u_int32_t blocksize;
int dir;
u_int num;
u_int16_t aputype;
u_int16_t wcreg_tpl;
};
struct agg_info {
device_t dev;
struct resource *reg;
int regid;
bus_space_tag_t st;
bus_space_handle_t sh;
bus_dma_tag_t parent_dmat;
struct resource *irq;
int irqid;
void *ih;
u_int8_t *stat;
bus_addr_t baseaddr;
struct ac97_info *codec;
u_int playchns, active;
struct agg_chinfo pch[AGG_MAXPLAYCH];
struct agg_chinfo rch;
};
static inline void ringbus_setdest(struct agg_info*, int, int);
static inline u_int16_t wp_rdreg(struct agg_info*, u_int16_t);
static inline void wp_wrreg(struct agg_info*, u_int16_t, u_int16_t);
static inline u_int16_t wp_rdapu(struct agg_info*, int, u_int16_t);
static inline void wp_wrapu(struct agg_info*, int, u_int16_t, u_int16_t);
static inline void wp_settimer(struct agg_info*, u_int);
static inline void wp_starttimer(struct agg_info*);
static inline void wp_stoptimer(struct agg_info*);
static inline u_int16_t wc_rdreg(struct agg_info*, u_int16_t);
static inline void wc_wrreg(struct agg_info*, u_int16_t, u_int16_t);
static inline u_int16_t wc_rdchctl(struct agg_info*, int);
static inline void wc_wrchctl(struct agg_info*, int, u_int16_t);
static inline void agg_power(struct agg_info*, int);
static void agg_init(struct agg_info*);
static void aggch_start_dac(struct agg_chinfo*);
static void aggch_stop_dac(struct agg_chinfo*);
static inline void suppress_jitter(struct agg_chinfo*);
static inline u_int calc_timer_freq(struct agg_chinfo*);
static void set_timer(struct agg_info*);
static void agg_intr(void *);
static int agg_probe(device_t);
static int agg_attach(device_t);
static int agg_detach(device_t);
static int agg_suspend(device_t);
static int agg_resume(device_t);
static int agg_shutdown(device_t);
static void *dma_malloc(struct agg_info*, u_int32_t, bus_addr_t*);
static void dma_free(struct agg_info*, void *);
/* -----------------------------
* Subsystems.
*/
/* Codec/Ringbus */
/* -------------------------------------------------------------------- */
static u_int32_t
agg_ac97_init(kobj_t obj, void *sc)
{
struct agg_info *ess = sc;
return (bus_space_read_1(ess->st, ess->sh, PORT_CODEC_STAT) & CODEC_STAT_MASK)? 0 : 1;
}
static int
agg_rdcodec(kobj_t obj, void *sc, int regno)
{
struct agg_info *ess = sc;
unsigned t;
/* We have to wait for a SAFE time to write addr/data */
for (t = 0; t < 20; t++) {
if ((bus_space_read_1(ess->st, ess->sh, PORT_CODEC_STAT)
& CODEC_STAT_MASK) != CODEC_STAT_PROGLESS)
break;
DELAY(2); /* 20.8us / 13 */
}
if (t == 20)
device_printf(ess->dev, "agg_rdcodec() PROGLESS timed out.\n");
bus_space_write_1(ess->st, ess->sh, PORT_CODEC_CMD,
CODEC_CMD_READ | regno);
DELAY(21); /* AC97 cycle = 20.8usec */
/* Wait for data retrieve */
for (t = 0; t < 20; t++) {
if ((bus_space_read_1(ess->st, ess->sh, PORT_CODEC_STAT)
& CODEC_STAT_MASK) == CODEC_STAT_RW_DONE)
break;
DELAY(2); /* 20.8us / 13 */
}
if (t == 20)
/* Timed out, but perform dummy read. */
device_printf(ess->dev, "agg_rdcodec() RW_DONE timed out.\n");
return bus_space_read_2(ess->st, ess->sh, PORT_CODEC_REG);
}
static int
agg_wrcodec(kobj_t obj, void *sc, int regno, u_int32_t data)
{
unsigned t;
struct agg_info *ess = sc;
/* We have to wait for a SAFE time to write addr/data */
for (t = 0; t < 20; t++) {
if ((bus_space_read_1(ess->st, ess->sh, PORT_CODEC_STAT)
& CODEC_STAT_MASK) != CODEC_STAT_PROGLESS)
break;
DELAY(2); /* 20.8us / 13 */
}
if (t == 20) {
/* Timed out. Abort writing. */
device_printf(ess->dev, "agg_wrcodec() PROGLESS timed out.\n");
return -1;
}
bus_space_write_2(ess->st, ess->sh, PORT_CODEC_REG, data);
bus_space_write_1(ess->st, ess->sh, PORT_CODEC_CMD,
CODEC_CMD_WRITE | regno);
return 0;
}
static kobj_method_t agg_ac97_methods[] = {
KOBJMETHOD(ac97_init, agg_ac97_init),
KOBJMETHOD(ac97_read, agg_rdcodec),
KOBJMETHOD(ac97_write, agg_wrcodec),
{ 0, 0 }
};
AC97_DECLARE(agg_ac97);
/* -------------------------------------------------------------------- */
static inline void
ringbus_setdest(struct agg_info *ess, int src, int dest)
{
u_int32_t data;
data = bus_space_read_4(ess->st, ess->sh, PORT_RINGBUS_CTRL);
data &= ~(0xfU << src);
data |= (0xfU & dest) << src;
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL, data);
}
/* Wave Processor */
static inline u_int16_t
wp_rdreg(struct agg_info *ess, u_int16_t reg)
{
bus_space_write_2(ess->st, ess->sh, PORT_DSP_INDEX, reg);
return bus_space_read_2(ess->st, ess->sh, PORT_DSP_DATA);
}
static inline void
wp_wrreg(struct agg_info *ess, u_int16_t reg, u_int16_t data)
{
bus_space_write_2(ess->st, ess->sh, PORT_DSP_INDEX, reg);
bus_space_write_2(ess->st, ess->sh, PORT_DSP_DATA, data);
}
static inline void
apu_setindex(struct agg_info *ess, u_int16_t reg)
{
int t;
wp_wrreg(ess, WPREG_CRAM_PTR, reg);
/* Sometimes WP fails to set apu register index. */
for (t = 0; t < 1000; t++) {
if (bus_space_read_2(ess->st, ess->sh, PORT_DSP_DATA) == reg)
break;
bus_space_write_2(ess->st, ess->sh, PORT_DSP_DATA, reg);
}
if (t == 1000)
device_printf(ess->dev, "apu_setindex() timed out.\n");
}
static inline u_int16_t
wp_rdapu(struct agg_info *ess, int ch, u_int16_t reg)
{
u_int16_t ret;
apu_setindex(ess, ((unsigned)ch << 4) + reg);
ret = wp_rdreg(ess, WPREG_DATA_PORT);
return ret;
}
static inline void
wp_wrapu(struct agg_info *ess, int ch, u_int16_t reg, u_int16_t data)
{
int t;
apu_setindex(ess, ((unsigned)ch << 4) + reg);
wp_wrreg(ess, WPREG_DATA_PORT, data);
for (t = 0; t < 1000; t++) {
if (bus_space_read_2(ess->st, ess->sh, PORT_DSP_DATA) == data)
break;
bus_space_write_2(ess->st, ess->sh, PORT_DSP_DATA, data);
}
if (t == 1000)
device_printf(ess->dev, "wp_wrapu() timed out.\n");
}
static inline void
wp_settimer(struct agg_info *ess, u_int freq)
{
u_int clock = 48000 << 2;
u_int prescale = 0, divide = (freq != 0) ? (clock / freq) : ~0;
RANGE(divide, 4, 32 << 8);
for (; divide > 32 << 1; divide >>= 1)
prescale++;
divide = (divide + 1) >> 1;
for (; prescale < 7 && divide > 2 && !(divide & 1); divide >>= 1)
prescale++;
wp_wrreg(ess, WPREG_TIMER_ENABLE, 0);
wp_wrreg(ess, WPREG_TIMER_FREQ,
(prescale << WP_TIMER_FREQ_PRESCALE_SHIFT) | (divide - 1));
wp_wrreg(ess, WPREG_TIMER_ENABLE, 1);
}
static inline void
wp_starttimer(struct agg_info *ess)
{
wp_wrreg(ess, WPREG_TIMER_START, 1);
}
static inline void
wp_stoptimer(struct agg_info *ess)
{
wp_wrreg(ess, WPREG_TIMER_START, 0);
bus_space_write_2(ess->st, ess->sh, PORT_INT_STAT, 1);
}
/* WaveCache */
static inline u_int16_t
wc_rdreg(struct agg_info *ess, u_int16_t reg)
{
bus_space_write_2(ess->st, ess->sh, PORT_WAVCACHE_INDEX, reg);
return bus_space_read_2(ess->st, ess->sh, PORT_WAVCACHE_DATA);
}
static inline void
wc_wrreg(struct agg_info *ess, u_int16_t reg, u_int16_t data)
{
bus_space_write_2(ess->st, ess->sh, PORT_WAVCACHE_INDEX, reg);
bus_space_write_2(ess->st, ess->sh, PORT_WAVCACHE_DATA, data);
}
static inline u_int16_t
wc_rdchctl(struct agg_info *ess, int ch)
{
return wc_rdreg(ess, ch << 3);
}
static inline void
wc_wrchctl(struct agg_info *ess, int ch, u_int16_t data)
{
wc_wrreg(ess, ch << 3, data);
}
/* Power management */
static inline void
agg_power(struct agg_info *ess, int status)
{
u_int8_t data;
data = pci_read_config(ess->dev, CONF_PM_PTR, 1);
if (pci_read_config(ess->dev, data, 1) == PPMI_CID)
pci_write_config(ess->dev, data + PM_CTRL, status, 1);
}
/* -----------------------------
* Controller.
*/
static inline void
agg_initcodec(struct agg_info* ess)
{
u_int16_t data;
if (bus_space_read_4(ess->st, ess->sh, PORT_RINGBUS_CTRL)
& RINGBUS_CTRL_ACLINK_ENABLED) {
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL, 0);
DELAY(104); /* 20.8us * (4 + 1) */
}
/* XXX - 2nd codec should be looked at. */
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL,
RINGBUS_CTRL_AC97_SWRESET);
DELAY(2);
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL,
RINGBUS_CTRL_ACLINK_ENABLED);
DELAY(21);
agg_rdcodec(NULL, ess, 0);
if (bus_space_read_1(ess->st, ess->sh, PORT_CODEC_STAT)
& CODEC_STAT_MASK) {
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL, 0);
DELAY(21);
/* Try cold reset. */
device_printf(ess->dev, "will perform cold reset.\n");
data = bus_space_read_2(ess->st, ess->sh, PORT_GPIO_DIR);
if (pci_read_config(ess->dev, 0x58, 2) & 1)
data |= 0x10;
data |= 0x009 &
~bus_space_read_2(ess->st, ess->sh, PORT_GPIO_DATA);
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_MASK, 0xff6);
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_DIR,
data | 0x009);
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_DATA, 0x000);
DELAY(2);
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_DATA, 0x001);
DELAY(1);
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_DATA, 0x009);
DELAY(500000);
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_DIR, data);
DELAY(84); /* 20.8us * 4 */
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL,
RINGBUS_CTRL_ACLINK_ENABLED);
DELAY(21);
}
}
static void
agg_init(struct agg_info* ess)
{
u_int32_t data;
/* Setup PCI config registers. */
/* Disable all legacy emulations. */
data = pci_read_config(ess->dev, CONF_LEGACY, 2);
data |= LEGACY_DISABLED;
pci_write_config(ess->dev, CONF_LEGACY, data, 2);
/* Disconnect from CHI. (Makes Dell inspiron 7500 work?)
* Enable posted write.
* Prefer PCI timing rather than that of ISA.
* Don't swap L/R. */
data = pci_read_config(ess->dev, CONF_MAESTRO, 4);
data |= MAESTRO_CHIBUS | MAESTRO_POSTEDWRITE | MAESTRO_DMA_PCITIMING;
data &= ~MAESTRO_SWAP_LR;
pci_write_config(ess->dev, CONF_MAESTRO, data, 4);
/* Reset direct sound. */
bus_space_write_2(ess->st, ess->sh, PORT_HOSTINT_CTRL,
HOSTINT_CTRL_DSOUND_RESET);
DELAY(10000); /* XXX - too long? */
bus_space_write_2(ess->st, ess->sh, PORT_HOSTINT_CTRL, 0);
DELAY(10000);
/* Enable direct sound interruption. */
bus_space_write_2(ess->st, ess->sh, PORT_HOSTINT_CTRL,
HOSTINT_CTRL_DSOUND_INT_ENABLED);
/* Setup Wave Processor. */
/* Enable WaveCache, set DMA base address. */
wp_wrreg(ess, WPREG_WAVE_ROMRAM,
WP_WAVE_VIRTUAL_ENABLED | WP_WAVE_DRAM_ENABLED);
bus_space_write_2(ess->st, ess->sh, PORT_WAVCACHE_CTRL,
WAVCACHE_ENABLED | WAVCACHE_WTSIZE_4MB);
for (data = WAVCACHE_PCMBAR; data < WAVCACHE_PCMBAR + 4; data++)
wc_wrreg(ess, data, ess->baseaddr >> WAVCACHE_BASEADDR_SHIFT);
/* Setup Codec/Ringbus. */
agg_initcodec(ess);
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL,
RINGBUS_CTRL_RINGBUS_ENABLED | RINGBUS_CTRL_ACLINK_ENABLED);
wp_wrreg(ess, WPREG_BASE, 0x8500); /* Parallel I/O */
ringbus_setdest(ess, RINGBUS_SRC_ADC,
RINGBUS_DEST_STEREO | RINGBUS_DEST_DSOUND_IN);
ringbus_setdest(ess, RINGBUS_SRC_DSOUND,
RINGBUS_DEST_STEREO | RINGBUS_DEST_DAC);
/* Setup ASSP. Needed for Dell Inspiron 7500? */
bus_space_write_1(ess->st, ess->sh, PORT_ASSP_CTRL_B, 0x00);
bus_space_write_1(ess->st, ess->sh, PORT_ASSP_CTRL_A, 0x03);
bus_space_write_1(ess->st, ess->sh, PORT_ASSP_CTRL_C, 0x00);
/*
* Setup GPIO.
* There seems to be speciality with NEC systems.
*/
switch (pci_get_subvendor(ess->dev)
| (pci_get_subdevice(ess->dev) << 16)) {
case NEC_SUBID1:
case NEC_SUBID2:
/* Matthew Braithwaite <matt@braithwaite.net> reported that
* NEC Versa LX doesn't need GPIO operation. */
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_MASK, 0x9ff);
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_DIR,
bus_space_read_2(ess->st, ess->sh, PORT_GPIO_DIR) | 0x600);
bus_space_write_2(ess->st, ess->sh, PORT_GPIO_DATA, 0x200);
break;
}
}
/* Channel controller. */
static void
aggch_start_dac(struct agg_chinfo *ch)
{
u_int wpwa = APU_USE_SYSMEM | (ch->offset >> 9);
u_int size = AGG_BUFSIZ >> 1;
u_int speed = ch->channel->speed;
u_int offset = ch->offset >> 1;
u_int cp = ch->buffer->rp >> 1;
u_int16_t apuch = ch->num << 1;
u_int dv;
int pan = 0;
switch (ch->aputype) {
case APUTYPE_16BITSTEREO:
wpwa >>= 1;
size >>= 1;
offset >>= 1;
cp >>= 1;
/* FALLTHROUGH */
case APUTYPE_8BITSTEREO:
pan = 8;
apuch++;
break;
case APUTYPE_8BITLINEAR:
speed >>= 1;
break;
}
dv = (((speed % 48000) << 16) + 24000) / 48000
+ ((speed / 48000) << 16);
do {
wp_wrapu(ch->parent, apuch, APUREG_WAVESPACE, wpwa & 0xff00);
wp_wrapu(ch->parent, apuch, APUREG_CURPTR, offset + cp);
wp_wrapu(ch->parent, apuch, APUREG_ENDPTR, offset + size);
wp_wrapu(ch->parent, apuch, APUREG_LOOPLEN, size);
wp_wrapu(ch->parent, apuch, APUREG_AMPLITUDE, 0xe800);
wp_wrapu(ch->parent, apuch, APUREG_POSITION, 0x8f00
| (RADIUS_CENTERCIRCLE << APU_RADIUS_SHIFT)
| ((PAN_FRONT + pan) << APU_PAN_SHIFT));
wp_wrapu(ch->parent, apuch, APUREG_FREQ_LOBYTE, APU_plus6dB
| ((dv & 0xff) << APU_FREQ_LOBYTE_SHIFT));
wp_wrapu(ch->parent, apuch, APUREG_FREQ_HIWORD, dv >> 8);
if (ch->aputype == APUTYPE_16BITSTEREO)
wpwa |= APU_STEREO >> 1;
pan = -pan;
} while (pan < 0 && apuch--);
wc_wrchctl(ch->parent, apuch, ch->wcreg_tpl);
wc_wrchctl(ch->parent, apuch + 1, ch->wcreg_tpl);
wp_wrapu(ch->parent, apuch, APUREG_APUTYPE,
(ch->aputype << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf);
if (ch->wcreg_tpl & WAVCACHE_CHCTL_STEREO)
wp_wrapu(ch->parent, apuch + 1, APUREG_APUTYPE,
(ch->aputype << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf);
}
static void
aggch_stop_dac(struct agg_chinfo *ch)
{
wp_wrapu(ch->parent, (ch->num << 1), APUREG_APUTYPE,
APUTYPE_INACTIVE << APU_APUTYPE_SHIFT);
wp_wrapu(ch->parent, (ch->num << 1) + 1, APUREG_APUTYPE,
APUTYPE_INACTIVE << APU_APUTYPE_SHIFT);
}
/*
* Stereo jitter suppressor.
* Sometimes playback pointers differ in stereo-paired channels.
* Calling this routine within intr fixes the problem.
*/
static inline void
suppress_jitter(struct agg_chinfo *ch)
{
if (ch->wcreg_tpl & WAVCACHE_CHCTL_STEREO) {
int cp, diff, halfsize = AGG_BUFSIZ >> 2;
if (ch->aputype == APUTYPE_16BITSTEREO)
halfsize >>= 1;
cp = wp_rdapu(ch->parent, (ch->num << 1), APUREG_CURPTR);
diff = wp_rdapu(ch->parent, (ch->num << 1) + 1, APUREG_CURPTR);
diff -= cp;
if (diff >> 1 && diff > -halfsize && diff < halfsize)
bus_space_write_2(ch->parent->st, ch->parent->sh,
PORT_DSP_DATA, cp);
}
}
static inline u_int
calc_timer_freq(struct agg_chinfo *ch)
{
u_int ss = 2;
if (ch->aputype == APUTYPE_16BITSTEREO)
ss <<= 1;
if (ch->aputype == APUTYPE_8BITLINEAR)
ss >>= 1;
return (ch->channel->speed * ss + ch->blocksize - 1) / ch->blocksize;
}
static void
set_timer(struct agg_info *ess)
{
int i;
u_int freq = 0;
for (i = 0; i < ess->playchns; i++)
if ((ess->active & (1 << i)) &&
(freq < calc_timer_freq(ess->pch + i)))
freq = calc_timer_freq(ess->pch + i);
wp_settimer(ess, freq);
}
/* -----------------------------
* Newpcm glue.
*/
static void *
aggch_init(kobj_t obj, void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
{
struct agg_info *ess = devinfo;
struct agg_chinfo *ch;
bus_addr_t physaddr;
ch = (dir == PCMDIR_PLAY)? ess->pch + ess->playchns : &ess->rch;
ch->parent = ess;
ch->channel = c;
ch->buffer = b;
ch->num = ess->playchns;
ch->dir = dir;
b->buf = dma_malloc(ess, AGG_BUFSIZ, &physaddr);
if (b->buf == NULL)
return NULL;
ch->offset = physaddr - ess->baseaddr;
if (physaddr < ess->baseaddr || ch->offset > WPWA_MAXADDR) {
device_printf(ess->dev,
"offset %#x exceeds limit. ", ch->offset);
dma_free(ess, b->buf);
b->buf = NULL;
return NULL;
}
b->bufsize = AGG_BUFSIZ;
ch->wcreg_tpl = (physaddr - 16) & WAVCACHE_CHCTL_ADDRTAG_MASK;
if (dir == PCMDIR_PLAY) {
ess->playchns++;
if (bootverbose)
device_printf(ess->dev, "pch[%d].offset = %#x\n", ch->num, ch->offset);
} else if (bootverbose)
device_printf(ess->dev, "rch.offset = %#x\n", ch->offset);
return ch;
}
static int
aggch_free(kobj_t obj, void *data)
{
struct agg_chinfo *ch = data;
struct agg_info *ess = ch->parent;
/* free up buffer - called after channel stopped */
dma_free(ess, ch->buffer->buf);
/* return 0 if ok */
return 0;
}
static int
aggch_setplayformat(kobj_t obj, void *data, u_int32_t format)
{
struct agg_chinfo *ch = data;
u_int16_t wcreg_tpl;
u_int16_t aputype = APUTYPE_16BITLINEAR;
wcreg_tpl = ch->wcreg_tpl & WAVCACHE_CHCTL_ADDRTAG_MASK;
if (format & AFMT_STEREO) {
wcreg_tpl |= WAVCACHE_CHCTL_STEREO;
aputype += 1;
}
if (format & AFMT_U8 || format & AFMT_S8) {
aputype += 2;
if (format & AFMT_U8)
wcreg_tpl |= WAVCACHE_CHCTL_U8;
}
if (format & AFMT_BIGENDIAN || format & AFMT_U16_LE) {
format &= ~AFMT_BIGENDIAN & ~AFMT_U16_LE;
format |= AFMT_S16_LE;
}
ch->wcreg_tpl = wcreg_tpl;
ch->aputype = aputype;
return format;
}
static int
aggch_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
return speed;
}
static int
aggch_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
return ((struct agg_chinfo*)data)->blocksize = blocksize;
}
static int
aggch_trigger(kobj_t obj, void *data, int go)
{
struct agg_chinfo *ch = data;
switch (go) {
case PCMTRIG_EMLDMAWR:
return 0;
case PCMTRIG_START:
ch->parent->active |= (1 << ch->num);
if (ch->dir == PCMDIR_PLAY)
aggch_start_dac(ch);
#if 0 /* XXX - RECORDING */
else
aggch_start_adc(ch);
#endif
break;
case PCMTRIG_ABORT:
case PCMTRIG_STOP:
ch->parent->active &= ~(1 << ch->num);
if (ch->dir == PCMDIR_PLAY)
aggch_stop_dac(ch);
#if 0 /* XXX - RECORDING */
else
aggch_stop_adc(ch);
#endif
break;
}
if (ch->parent->active) {
set_timer(ch->parent);
wp_starttimer(ch->parent);
} else
wp_stoptimer(ch->parent);
return 0;
}
static int
aggch_getplayptr(kobj_t obj, void *data)
{
struct agg_chinfo *ch = data;
u_int cp;
cp = wp_rdapu(ch->parent, (ch->num << 1), APUREG_CURPTR);
if (ch->aputype == APUTYPE_16BITSTEREO)
cp = (0xffff << 2) & ((cp << 2) - ch->offset);
else
cp = (0xffff << 1) & ((cp << 1) - ch->offset);
return cp;
}
static pcmchan_caps *
aggch_getcaps(kobj_t obj, void *data)
{
static u_int32_t playfmt[] = {
AFMT_U8,
AFMT_STEREO | AFMT_U8,
AFMT_S8,
AFMT_STEREO | AFMT_S8,
AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE,
0
};
static pcmchan_caps playcaps = {2000, 96000, playfmt, 0};
static u_int32_t recfmt[] = {
AFMT_S8,
AFMT_STEREO | AFMT_S8,
AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE,
0
};
static pcmchan_caps reccaps = {4000, 48000, recfmt, 0};
return (((struct agg_chinfo*)data)->dir == PCMDIR_PLAY)?
&playcaps : &reccaps;
}
static kobj_method_t aggch_methods[] = {
KOBJMETHOD(channel_init, aggch_init),
KOBJMETHOD(channel_free, aggch_free),
KOBJMETHOD(channel_setformat, aggch_setplayformat),
KOBJMETHOD(channel_setspeed, aggch_setspeed),
KOBJMETHOD(channel_setblocksize, aggch_setblocksize),
KOBJMETHOD(channel_trigger, aggch_trigger),
KOBJMETHOD(channel_getptr, aggch_getplayptr),
KOBJMETHOD(channel_getcaps, aggch_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(aggch);
/* -----------------------------
* Bus space.
*/
static void
agg_intr(void *sc)
{
struct agg_info* ess = sc;
u_int16_t status;
int i;
status = bus_space_read_1(ess->st, ess->sh, PORT_HOSTINT_STAT);
if (!status)
return;
/* Acknowledge all. */
bus_space_write_2(ess->st, ess->sh, PORT_INT_STAT, 1);
bus_space_write_1(ess->st, ess->sh, PORT_HOSTINT_STAT, 0);
#if 0 /* XXX - HWVOL */
if (status & HOSTINT_STAT_HWVOL) {
u_int delta;
delta = bus_space_read_1(ess->st, ess->sh, PORT_HWVOL_MASTER)
- 0x88;
if (delta & 0x11)
mixer_set(device_get_softc(ess->dev),
SOUND_MIXER_VOLUME, 0);
else {
mixer_set(device_get_softc(ess->dev),
SOUND_MIXER_VOLUME,
mixer_get(device_get_softc(ess->dev),
SOUND_MIXER_VOLUME)
+ ((delta >> 5) & 0x7) - 4
+ ((delta << 7) & 0x700) - 0x400);
}
bus_space_write_1(ess->st, ess->sh, PORT_HWVOL_MASTER, 0x88);
}
#endif /* XXX - HWVOL */
for (i = 0; i < ess->playchns; i++)
if (ess->active & (1 << i)) {
suppress_jitter(ess->pch + i);
chn_intr(ess->pch[i].channel);
}
#if 0 /* XXX - RECORDING */
if (ess->active & (1 << i))
chn_intr(ess->rch.channel);
#endif
}
static void
setmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
bus_addr_t *phys = arg;
*phys = error? 0 : segs->ds_addr;
if (bootverbose) {
printf("setmap (%lx, %lx), nseg=%d, error=%d\n",
(unsigned long)segs->ds_addr, (unsigned long)segs->ds_len,
nseg, error);
}
}
static void *
dma_malloc(struct agg_info *sc, u_int32_t sz, bus_addr_t *phys)
{
void *buf;
bus_dmamap_t map;
if (bus_dmamem_alloc(sc->parent_dmat, &buf, BUS_DMA_NOWAIT, &map))
return NULL;
if (bus_dmamap_load(sc->parent_dmat, map, buf, sz, setmap, phys, 0)
|| !*phys) {
bus_dmamem_free(sc->parent_dmat, buf, map);
return NULL;
}
return buf;
}
static void
dma_free(struct agg_info *sc, void *buf)
{
bus_dmamem_free(sc->parent_dmat, buf, NULL);
}
static int
agg_probe(device_t dev)
{
char *s = NULL;
switch (pci_get_devid(dev)) {
case MAESTRO_1_PCI_ID:
s = "ESS Technology Maestro-1";
break;
case MAESTRO_2_PCI_ID:
s = "ESS Technology Maestro-2";
break;
case MAESTRO_2E_PCI_ID:
s = "ESS Technology Maestro-2E";
break;
}
if (s != NULL && pci_get_class(dev) == PCIC_MULTIMEDIA) {
device_set_desc(dev, s);
return 0;
}
return ENXIO;
}
static int
agg_attach(device_t dev)
{
struct agg_info *ess = NULL;
u_int32_t data;
int mapped = 0;
int regid = PCIR_MAPS;
struct resource *reg = NULL;
struct ac97_info *codec = NULL;
int irqid = 0;
struct resource *irq = NULL;
void *ih = NULL;
char status[SND_STATUSLEN];
if ((ess = malloc(sizeof *ess, M_DEVBUF, M_NOWAIT)) == NULL) {
device_printf(dev, "cannot allocate softc\n");
return ENXIO;
}
bzero(ess, sizeof *ess);
ess->dev = dev;
if (bus_dma_tag_create(/*parent*/NULL,
/*alignment*/1 << WAVCACHE_BASEADDR_SHIFT,
/*boundary*/WPWA_MAXADDR + 1,
/*lowaddr*/MAESTRO_MAXADDR, /*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/AGG_BUFSIZ * 2, /*nsegments*/1, /*maxsegz*/0x3ffff,
/*flags*/0, &ess->parent_dmat) != 0) {
device_printf(dev, "unable to create dma tag\n");
goto bad;
}
ess->stat = dma_malloc(ess, AGG_BUFSIZ, &ess->baseaddr);
if (ess->stat == NULL) {
device_printf(dev, "cannot allocate status buffer\n");
goto bad;
}
if (bootverbose)
device_printf(dev, "Maestro DMA base: %#x\n", ess->baseaddr);
agg_power(ess, PPMI_D0);
DELAY(100000);
data = pci_read_config(dev, PCIR_COMMAND, 2);
data |= (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN);
pci_write_config(dev, PCIR_COMMAND, data, 2);
data = pci_read_config(dev, PCIR_COMMAND, 2);
if (data & PCIM_CMD_PORTEN) {
reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &regid,
0, BUS_SPACE_UNRESTRICTED, 256, RF_ACTIVE);
if (reg != NULL) {
ess->reg = reg;
ess->regid = regid;
ess->st = rman_get_bustag(reg);
ess->sh = rman_get_bushandle(reg);
mapped++;
}
}
if (mapped == 0) {
device_printf(dev, "unable to map register space\n");
goto bad;
}
agg_init(ess);
if (agg_rdcodec(NULL, ess, 0) == 0x80) {
device_printf(dev, "PT101 codec detected!\n");
goto bad;
}
codec = AC97_CREATE(dev, ess, agg_ac97);
if (codec == NULL)
goto bad;
if (mixer_init(dev, ac97_getmixerclass(), codec) == -1)
goto bad;
ess->codec = codec;
irq = bus_alloc_resource(dev, SYS_RES_IRQ, &irqid,
0, BUS_SPACE_UNRESTRICTED, 1, RF_ACTIVE | RF_SHAREABLE);
if (irq == NULL
|| bus_setup_intr(dev, irq, INTR_TYPE_TTY, agg_intr, ess, &ih)) {
device_printf(dev, "unable to map interrupt\n");
goto bad;
}
ess->irq = irq;
ess->irqid = irqid;
ess->ih = ih;
snprintf(status, SND_STATUSLEN, "at I/O port 0x%lx irq %ld",
rman_get_start(reg), rman_get_start(irq));
if (pcm_register(dev, ess, AGG_MAXPLAYCH, 1))
goto bad;
for (data = 0; data < AGG_MAXPLAYCH; data++)
pcm_addchan(dev, PCMDIR_PLAY, &aggch_class, ess);
#if 0 /* XXX - RECORDING */
pcm_addchan(dev, PCMDIR_REC, &aggrch_class, ess);
#endif
pcm_setstatus(dev, status);
return 0;
bad:
if (codec != NULL)
ac97_destroy(codec);
if (ih != NULL)
bus_teardown_intr(dev, irq, ih);
if (irq != NULL)
bus_release_resource(dev, SYS_RES_IRQ, irqid, irq);
if (reg != NULL)
bus_release_resource(dev, SYS_RES_IOPORT, regid, reg);
if (ess != NULL) {
agg_power(ess, PPMI_D3);
if (ess->stat != NULL)
dma_free(ess, ess->stat);
if (ess->parent_dmat != NULL)
bus_dma_tag_destroy(ess->parent_dmat);
free(ess, M_DEVBUF);
}
return ENXIO;
}
static int
agg_detach(device_t dev)
{
struct agg_info *ess = pcm_getdevinfo(dev);
int r;
r = pcm_unregister(dev);
if (r)
return r;
ess = pcm_getdevinfo(dev);
dma_free(ess, ess->stat);
/* Power down everything except clock and vref. */
agg_wrcodec(NULL, ess, AC97_REG_POWER, 0xd700);
DELAY(20);
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL, 0);
agg_power(ess, PPMI_D3);
bus_teardown_intr(dev, ess->irq, ess->ih);
bus_release_resource(dev, SYS_RES_IRQ, ess->irqid, ess->irq);
bus_release_resource(dev, SYS_RES_IOPORT, ess->regid, ess->reg);
bus_dma_tag_destroy(ess->parent_dmat);
free(ess, M_DEVBUF);
return 0;
}
static int
agg_suspend(device_t dev)
{
struct agg_info *ess = pcm_getdevinfo(dev);
int i, x;
x = spltty();
wp_stoptimer(ess);
bus_space_write_2(ess->st, ess->sh, PORT_HOSTINT_CTRL, 0);
for (i = 0; i < ess->playchns; i++)
aggch_stop_dac(ess->pch + i);
#if 0 /* XXX - RECORDING */
aggch_stop_adc(&ess->rch);
#endif
splx(x);
/* Power down everything except clock. */
agg_wrcodec(NULL, ess, AC97_REG_POWER, 0xdf00);
DELAY(20);
bus_space_write_4(ess->st, ess->sh, PORT_RINGBUS_CTRL, 0);
DELAY(1);
agg_power(ess, PPMI_D3);
return 0;
}
static int
agg_resume(device_t dev)
{
int i, x;
struct agg_info *ess = pcm_getdevinfo(dev);
agg_power(ess, PPMI_D0);
DELAY(100000);
agg_init(ess);
if (mixer_reinit(dev)) {
device_printf(dev, "unable to reinitialize the mixer\n");
return ENXIO;
}
x = spltty();
for (i = 0; i < ess->playchns; i++)
if (ess->active & (1 << i))
aggch_start_dac(ess->pch + i);
#if 0 /* XXX - RECORDING */
if (ess->active & (1 << i))
aggch_start_adc(&ess->rch);
#endif
if (ess->active) {
set_timer(ess);
wp_starttimer(ess);
}
splx(x);
return 0;
}
static int
agg_shutdown(device_t dev)
{
struct agg_info *ess = pcm_getdevinfo(dev);
int i;
wp_stoptimer(ess);
bus_space_write_2(ess->st, ess->sh, PORT_HOSTINT_CTRL, 0);
for (i = 0; i < ess->playchns; i++)
aggch_stop_dac(ess->pch + i);
#if 0 /* XXX - RECORDING */
aggch_stop_adc(&ess->rch);
#endif
return 0;
}
static device_method_t agg_methods[] = {
DEVMETHOD(device_probe, agg_probe),
DEVMETHOD(device_attach, agg_attach),
DEVMETHOD(device_detach, agg_detach),
DEVMETHOD(device_suspend, agg_suspend),
DEVMETHOD(device_resume, agg_resume),
DEVMETHOD(device_shutdown, agg_shutdown),
{ 0, 0 }
};
static driver_t agg_driver = {
"pcm",
agg_methods,
sizeof(snddev_info),
};
static devclass_t pcm_devclass;
DRIVER_MODULE(snd_maestro, pci, agg_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_maestro, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
MODULE_VERSION(snd_maestro, 1);
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