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freebsd-dev/sys/dev/sound/pci/maestro.c
Ariff Abdullah 4582b3a100 Fix severe out-of-bound mtx "type" pointer, causing WITNESS refcount 
confusions and panic provided that the following conditions are met:

  1) WITNESS is enabled (watch/trace).
  2) Using modules, instead of statically linked (Not a strict
     requirement, but easier to reproduce this way).
  3) 2 or more modules share the same mtx type ("sound softc").
     - They might share the same name (strcmp() == 0), but it always
       point to different address.
  4) Repetitive kldunload/load on any module that shares the same mtx
     type (Not a strict requirement, but easier to reproduce this way).

     Consider module A and module B:
     - From enroll() - subr_witness.c:
       * Load module A. Everything seems fine right now.
         wA-w_refcount == 1 ; wA-w_name = "sound softc"
       * Load module B.
       * w->w_name == description will always fail.
         ("sound softc" from A and B point to different address).
       * wA->w_refcount > 0 && strcmp(description, wA->w_name) == 0
       * enroll() will return wA instead of returning (possibly unique)
         wB.
         wA->w_refcount++ , == 2.
       * Unload module A, mtx_destroy(), wA->w_name become invalid,
         but wA->w_refcount-- become 1 instead of 0. wA will not be
         removed from witness list.
       * Some other places call mtx_init(), iterating witness list,
         found wA, failed on wA->w_name == description
       * wA->w_refcount > 0 && strcmp(description, wA->w_name)
       * Panic on strcmp() since wA->w_name no longer point to valid
         address.

Note that this could happened in other places as well, not just sound
(eg. consider lots of drivers that share simmilar MTX_NETWORK_LOCK).

Solutions (for sound case):
  1) Provide unique mtx type string for each mutex creation (chosen)
  or
  2) Put "sound softc" global variable somewhere and use it.
2007-03-15 16:41:27 +00:00

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/*-
* Copyright (c) 2000-2004 Taku YAMAMOTO <taku@tackymt.homeip.net>
* 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.
*
* maestro.c,v 1.23.2.1 2003/10/03 18:21:38 taku Exp
*/
/*
* 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 <cg@freebsd.org>.
* 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.
*
* Hardware volume controller was implemented by
* John Baldwin <jhb@freebsd.org>.
*/
#include <dev/sound/pcm/sound.h>
#include <dev/sound/pcm/ac97.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/sound/pci/maestro_reg.h>
SND_DECLARE_FILE("$FreeBSD$");
/*
* 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 */
#ifdef AGG_MAXPLAYCH
# if AGG_MAXPLAYCH > 4
# undef AGG_MAXPLAYCH
# define AGG_MAXPLAYCH 4
# endif
#else
# define AGG_MAXPLAYCH 4
#endif
#define AGG_DEFAULT_BUFSZ 0x4000 /* 0x1000, but gets underflows */
/* compatibility */
#if __FreeBSD_version < 500000
# define critical_enter() disable_intr()
# define critical_exit() enable_intr()
#endif
#ifndef PCIR_BAR
#define PCIR_BAR(x) (PCIR_MAPS + (x) * 4)
#endif
/* -----------------------------
* Data structures.
*/
struct agg_chinfo {
/* parent softc */
struct agg_info *parent;
/* FreeBSD newpcm related */
struct pcm_channel *channel;
struct snd_dbuf *buffer;
/* OS independent */
bus_addr_t phys; /* channel buffer physical address */
bus_addr_t base; /* channel buffer segment base */
u_int32_t blklen; /* DMA block length in WORDs */
u_int32_t buflen; /* channel buffer length in WORDs */
u_int32_t speed;
unsigned num : 3;
unsigned stereo : 1;
unsigned qs16 : 1; /* quantum size is 16bit */
unsigned us : 1; /* in unsigned format */
};
struct agg_rchinfo {
/* parent softc */
struct agg_info *parent;
/* FreeBSD newpcm related */
struct pcm_channel *channel;
struct snd_dbuf *buffer;
/* OS independent */
bus_addr_t phys; /* channel buffer physical address */
bus_addr_t base; /* channel buffer segment base */
u_int32_t blklen; /* DMA block length in WORDs */
u_int32_t buflen; /* channel buffer length in WORDs */
u_int32_t speed;
unsigned : 3;
unsigned stereo : 1;
bus_addr_t srcphys;
int16_t *src; /* stereo peer buffer */
int16_t *sink; /* channel buffer pointer */
volatile u_int32_t hwptr; /* ready point in 16bit sample */
};
struct agg_info {
/* FreeBSD newbus related */
device_t dev;
/* I wonder whether bus_space_* are in common in *BSD... */
struct resource *reg;
int regid;
bus_space_tag_t st;
bus_space_handle_t sh;
struct resource *irq;
int irqid;
void *ih;
bus_dma_tag_t buf_dmat;
bus_dma_tag_t stat_dmat;
/* FreeBSD SMPng related */
#ifdef USING_MUTEX
struct mtx lock; /* mutual exclusion */
#endif
/* FreeBSD newpcm related */
struct ac97_info *codec;
/* OS independent */
u_int8_t *stat; /* status buffer pointer */
bus_addr_t phys; /* status buffer physical address */
unsigned int bufsz; /* channel buffer size in bytes */
u_int playchns;
volatile u_int active;
struct agg_chinfo pch[AGG_MAXPLAYCH];
struct agg_rchinfo rch;
volatile u_int8_t curpwr; /* current power status: D[0-3] */
};
/* -----------------------------
* Sysctls for debug.
*/
static unsigned int powerstate_active = PCI_POWERSTATE_D1;
#ifdef MAESTRO_AGGRESSIVE_POWERSAVE
static unsigned int powerstate_idle = PCI_POWERSTATE_D2;
#else
static unsigned int powerstate_idle = PCI_POWERSTATE_D1;
#endif
static unsigned int powerstate_init = PCI_POWERSTATE_D2;
/* XXX: this should move to a device specific sysctl dev.pcm.X.debug.Y via
device_get_sysctl_*() as discussed on multimedia@ in msg-id
<861wujij2q.fsf@xps.des.no> */
SYSCTL_NODE(_debug, OID_AUTO, maestro, CTLFLAG_RD, 0, "");
SYSCTL_UINT(_debug_maestro, OID_AUTO, powerstate_active, CTLFLAG_RW,
&powerstate_active, 0, "The Dx power state when active (0-1)");
SYSCTL_UINT(_debug_maestro, OID_AUTO, powerstate_idle, CTLFLAG_RW,
&powerstate_idle, 0, "The Dx power state when idle (0-2)");
SYSCTL_UINT(_debug_maestro, OID_AUTO, powerstate_init, CTLFLAG_RW,
&powerstate_init, 0,
"The Dx power state prior to the first use (0-2)");
/* -----------------------------
* Prototypes
*/
static void agg_sleep(struct agg_info*, const char *wmesg, int msec);
static __inline u_int32_t agg_rd(struct agg_info*, int, int size);
static __inline void agg_wr(struct agg_info*, int, u_int32_t data,
int size);
static int agg_rdcodec(struct agg_info*, int);
static int agg_wrcodec(struct agg_info*, int, u_int32_t);
static void ringbus_setdest(struct agg_info*, int, int);
static u_int16_t wp_rdreg(struct agg_info*, u_int16_t);
static void wp_wrreg(struct agg_info*, u_int16_t, u_int16_t);
static u_int16_t wp_rdapu(struct agg_info*, unsigned, u_int16_t);
static void wp_wrapu(struct agg_info*, unsigned, u_int16_t, u_int16_t);
static void wp_settimer(struct agg_info*, u_int);
static void wp_starttimer(struct agg_info*);
static void wp_stoptimer(struct agg_info*);
#if 0
static u_int16_t wc_rdreg(struct agg_info*, u_int16_t);
#endif
static void wc_wrreg(struct agg_info*, u_int16_t, u_int16_t);
#if 0
static u_int16_t wc_rdchctl(struct agg_info*, int);
#endif
static void wc_wrchctl(struct agg_info*, int, u_int16_t);
static void agg_stopclock(struct agg_info*, int part, int st);
static void agg_initcodec(struct agg_info*);
static void agg_init(struct agg_info*);
static void agg_power(struct agg_info*, int);
static void aggch_start_dac(struct agg_chinfo*);
static void aggch_stop_dac(struct agg_chinfo*);
static void aggch_start_adc(struct agg_rchinfo*);
static void aggch_stop_adc(struct agg_rchinfo*);
static void aggch_feed_adc_stereo(struct agg_rchinfo*);
static void aggch_feed_adc_mono(struct agg_rchinfo*);
#ifdef AGG_JITTER_CORRECTION
static void suppress_jitter(struct agg_chinfo*);
static void suppress_rec_jitter(struct agg_rchinfo*);
#endif
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(bus_dma_tag_t, u_int32_t, bus_addr_t*);
static void dma_free(bus_dma_tag_t, void *);
/* -----------------------------
* Subsystems.
*/
/* locking */
#define agg_lock(sc) snd_mtxlock(&((sc)->lock))
#define agg_unlock(sc) snd_mtxunlock(&((sc)->lock))
static void
agg_sleep(struct agg_info *sc, const char *wmesg, int msec)
{
int timo;
timo = msec * hz / 1000;
if (timo == 0)
timo = 1;
#ifdef USING_MUTEX
msleep(sc, &sc->lock, PWAIT, wmesg, timo);
#else
tsleep(sc, PWAIT, wmesg, timo);
#endif
}
/* I/O port */
static __inline u_int32_t
agg_rd(struct agg_info *sc, int regno, int size)
{
switch (size) {
case 1:
return bus_space_read_1(sc->st, sc->sh, regno);
case 2:
return bus_space_read_2(sc->st, sc->sh, regno);
case 4:
return bus_space_read_4(sc->st, sc->sh, regno);
default:
return ~(u_int32_t)0;
}
}
#define AGG_RD(sc, regno, size) \
bus_space_read_##size( \
((struct agg_info*)(sc))->st, \
((struct agg_info*)(sc))->sh, (regno))
static __inline void
agg_wr(struct agg_info *sc, int regno, u_int32_t data, int size)
{
switch (size) {
case 1:
bus_space_write_1(sc->st, sc->sh, regno, data);
break;
case 2:
bus_space_write_2(sc->st, sc->sh, regno, data);
break;
case 4:
bus_space_write_4(sc->st, sc->sh, regno, data);
break;
}
}
#define AGG_WR(sc, regno, data, size) \
bus_space_write_##size( \
((struct agg_info*)(sc))->st, \
((struct agg_info*)(sc))->sh, (regno), (data))
/* -------------------------------------------------------------------- */
/* Codec/Ringbus */
static int
agg_codec_wait4idle(struct agg_info *ess)
{
unsigned t = 26;
while (AGG_RD(ess, PORT_CODEC_STAT, 1) & CODEC_STAT_MASK) {
if (--t == 0)
return EBUSY;
DELAY(2); /* 20.8us / 13 */
}
return 0;
}
static int
agg_rdcodec(struct agg_info *ess, int regno)
{
int ret;
/* We have to wait for a SAFE time to write addr/data */
if (agg_codec_wait4idle(ess)) {
/* Timed out. No read performed. */
device_printf(ess->dev, "agg_rdcodec() PROGLESS timed out.\n");
return -1;
}
AGG_WR(ess, PORT_CODEC_CMD, CODEC_CMD_READ | regno, 1);
/*DELAY(21); * AC97 cycle = 20.8usec */
/* Wait for data retrieve */
if (!agg_codec_wait4idle(ess)) {
ret = AGG_RD(ess, PORT_CODEC_REG, 2);
} else {
/* Timed out. No read performed. */
device_printf(ess->dev, "agg_rdcodec() RW_DONE timed out.\n");
ret = -1;
}
return ret;
}
static int
agg_wrcodec(struct agg_info *ess, int regno, u_int32_t data)
{
/* We have to wait for a SAFE time to write addr/data */
if (agg_codec_wait4idle(ess)) {
/* Timed out. Abort writing. */
device_printf(ess->dev, "agg_wrcodec() PROGLESS timed out.\n");
return -1;
}
AGG_WR(ess, PORT_CODEC_REG, data, 2);
AGG_WR(ess, PORT_CODEC_CMD, CODEC_CMD_WRITE | regno, 1);
/* Wait for write completion */
if (agg_codec_wait4idle(ess)) {
/* Timed out. */
device_printf(ess->dev, "agg_wrcodec() RW_DONE timed out.\n");
return -1;
}
return 0;
}
static void
ringbus_setdest(struct agg_info *ess, int src, int dest)
{
u_int32_t data;
data = AGG_RD(ess, PORT_RINGBUS_CTRL, 4);
data &= ~(0xfU << src);
data |= (0xfU & dest) << src;
AGG_WR(ess, PORT_RINGBUS_CTRL, data, 4);
}
/* -------------------------------------------------------------------- */
/* Wave Processor */
static u_int16_t
wp_rdreg(struct agg_info *ess, u_int16_t reg)
{
AGG_WR(ess, PORT_DSP_INDEX, reg, 2);
return AGG_RD(ess, PORT_DSP_DATA, 2);
}
static void
wp_wrreg(struct agg_info *ess, u_int16_t reg, u_int16_t data)
{
AGG_WR(ess, PORT_DSP_INDEX, reg, 2);
AGG_WR(ess, PORT_DSP_DATA, data, 2);
}
static int
wp_wait_data(struct agg_info *ess, u_int16_t data)
{
unsigned t = 0;
while (AGG_RD(ess, PORT_DSP_DATA, 2) != data) {
if (++t == 1000) {
return EAGAIN;
}
AGG_WR(ess, PORT_DSP_DATA, data, 2);
}
return 0;
}
static u_int16_t
wp_rdapu(struct agg_info *ess, unsigned ch, u_int16_t reg)
{
wp_wrreg(ess, WPREG_CRAM_PTR, reg | (ch << 4));
if (wp_wait_data(ess, reg | (ch << 4)) != 0)
device_printf(ess->dev, "wp_rdapu() indexing timed out.\n");
return wp_rdreg(ess, WPREG_DATA_PORT);
}
static void
wp_wrapu(struct agg_info *ess, unsigned ch, u_int16_t reg, u_int16_t data)
{
wp_wrreg(ess, WPREG_CRAM_PTR, reg | (ch << 4));
if (wp_wait_data(ess, reg | (ch << 4)) == 0) {
wp_wrreg(ess, WPREG_DATA_PORT, data);
if (wp_wait_data(ess, data) != 0)
device_printf(ess->dev,
"wp_wrapu() write timed out.\n");
} else {
device_printf(ess->dev, "wp_wrapu() indexing timed out.\n");
}
}
static void
apu_setparam(struct agg_info *ess, int apuch,
u_int32_t wpwa, u_int16_t size, int16_t pan, u_int dv)
{
wp_wrapu(ess, apuch, APUREG_WAVESPACE, (wpwa >> 8) & APU_64KPAGE_MASK);
wp_wrapu(ess, apuch, APUREG_CURPTR, wpwa);
wp_wrapu(ess, apuch, APUREG_ENDPTR, wpwa + size);
wp_wrapu(ess, apuch, APUREG_LOOPLEN, size);
wp_wrapu(ess, apuch, APUREG_ROUTING, 0);
wp_wrapu(ess, apuch, APUREG_AMPLITUDE, 0xf000);
wp_wrapu(ess, apuch, APUREG_POSITION, 0x8f00
| (APU_RADIUS_MASK & (RADIUS_CENTERCIRCLE << APU_RADIUS_SHIFT))
| (APU_PAN_MASK & ((pan + PAN_FRONT) << APU_PAN_SHIFT)));
wp_wrapu(ess, apuch, APUREG_FREQ_LOBYTE,
APU_plus6dB | ((dv & 0xff) << APU_FREQ_LOBYTE_SHIFT));
wp_wrapu(ess, apuch, APUREG_FREQ_HIWORD, dv >> 8);
}
static void
wp_settimer(struct agg_info *ess, u_int divide)
{
u_int prescale = 0;
RANGE(divide, 2, 32 << 7);
for (; divide > 32; divide >>= 1) {
prescale++;
divide++;
}
for (; prescale < 7 && divide > 2 && !(divide & 1); divide >>= 1)
prescale++;
wp_wrreg(ess, WPREG_TIMER_ENABLE, 0);
wp_wrreg(ess, WPREG_TIMER_FREQ, 0x9000 |
(prescale << WP_TIMER_FREQ_PRESCALE_SHIFT) | (divide - 1));
wp_wrreg(ess, WPREG_TIMER_ENABLE, 1);
}
static void
wp_starttimer(struct agg_info *ess)
{
AGG_WR(ess, PORT_INT_STAT, 1, 2);
AGG_WR(ess, PORT_HOSTINT_CTRL, HOSTINT_CTRL_DSOUND_INT_ENABLED
| AGG_RD(ess, PORT_HOSTINT_CTRL, 2), 2);
wp_wrreg(ess, WPREG_TIMER_START, 1);
}
static void
wp_stoptimer(struct agg_info *ess)
{
AGG_WR(ess, PORT_HOSTINT_CTRL, ~HOSTINT_CTRL_DSOUND_INT_ENABLED
& AGG_RD(ess, PORT_HOSTINT_CTRL, 2), 2);
AGG_WR(ess, PORT_INT_STAT, 1, 2);
wp_wrreg(ess, WPREG_TIMER_START, 0);
}
/* -------------------------------------------------------------------- */
/* WaveCache */
#if 0
static u_int16_t
wc_rdreg(struct agg_info *ess, u_int16_t reg)
{
AGG_WR(ess, PORT_WAVCACHE_INDEX, reg, 2);
return AGG_RD(ess, PORT_WAVCACHE_DATA, 2);
}
#endif
static void
wc_wrreg(struct agg_info *ess, u_int16_t reg, u_int16_t data)
{
AGG_WR(ess, PORT_WAVCACHE_INDEX, reg, 2);
AGG_WR(ess, PORT_WAVCACHE_DATA, data, 2);
}
#if 0
static u_int16_t
wc_rdchctl(struct agg_info *ess, int ch)
{
return wc_rdreg(ess, ch << 3);
}
#endif
static void
wc_wrchctl(struct agg_info *ess, int ch, u_int16_t data)
{
wc_wrreg(ess, ch << 3, data);
}
/* -------------------------------------------------------------------- */
/* Power management */
static void
agg_stopclock(struct agg_info *ess, int part, int st)
{
u_int32_t data;
data = pci_read_config(ess->dev, CONF_ACPI_STOPCLOCK, 4);
if (part < 16) {
if (st == PCI_POWERSTATE_D1)
data &= ~(1 << part);
else
data |= (1 << part);
if (st == PCI_POWERSTATE_D1 || st == PCI_POWERSTATE_D2)
data |= (0x10000 << part);
else
data &= ~(0x10000 << part);
pci_write_config(ess->dev, CONF_ACPI_STOPCLOCK, data, 4);
}
}
/* -----------------------------
* Controller.
*/
static void
agg_initcodec(struct agg_info* ess)
{
u_int16_t data;
if (AGG_RD(ess, PORT_RINGBUS_CTRL, 4) & RINGBUS_CTRL_ACLINK_ENABLED) {
AGG_WR(ess, PORT_RINGBUS_CTRL, 0, 4);
DELAY(104); /* 20.8us * (4 + 1) */
}
/* XXX - 2nd codec should be looked at. */
AGG_WR(ess, PORT_RINGBUS_CTRL, RINGBUS_CTRL_AC97_SWRESET, 4);
DELAY(2);
AGG_WR(ess, PORT_RINGBUS_CTRL, RINGBUS_CTRL_ACLINK_ENABLED, 4);
DELAY(50);
if (agg_rdcodec(ess, 0) < 0) {
AGG_WR(ess, PORT_RINGBUS_CTRL, 0, 4);
DELAY(21);
/* Try cold reset. */
device_printf(ess->dev, "will perform cold reset.\n");
data = AGG_RD(ess, PORT_GPIO_DIR, 2);
if (pci_read_config(ess->dev, 0x58, 2) & 1)
data |= 0x10;
data |= 0x009 & ~AGG_RD(ess, PORT_GPIO_DATA, 2);
AGG_WR(ess, PORT_GPIO_MASK, 0xff6, 2);
AGG_WR(ess, PORT_GPIO_DIR, data | 0x009, 2);
AGG_WR(ess, PORT_GPIO_DATA, 0x000, 2);
DELAY(2);
AGG_WR(ess, PORT_GPIO_DATA, 0x001, 2);
DELAY(1);
AGG_WR(ess, PORT_GPIO_DATA, 0x009, 2);
agg_sleep(ess, "agginicd", 500);
AGG_WR(ess, PORT_GPIO_DIR, data, 2);
DELAY(84); /* 20.8us * 4 */
AGG_WR(ess, PORT_RINGBUS_CTRL, RINGBUS_CTRL_ACLINK_ENABLED, 4);
DELAY(50);
}
}
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_PMC;
data |= MAESTRO_CHIBUS | MAESTRO_POSTEDWRITE | MAESTRO_DMA_PCITIMING;
data &= ~MAESTRO_SWAP_LR;
pci_write_config(ess->dev, CONF_MAESTRO, data, 4);
/* Turn off unused parts if necessary. */
/* consult CONF_MAESTRO. */
if (data & MAESTRO_SPDIF)
agg_stopclock(ess, ACPI_PART_SPDIF, PCI_POWERSTATE_D2);
else
agg_stopclock(ess, ACPI_PART_SPDIF, PCI_POWERSTATE_D1);
if (data & MAESTRO_HWVOL)
agg_stopclock(ess, ACPI_PART_HW_VOL, PCI_POWERSTATE_D3);
else
agg_stopclock(ess, ACPI_PART_HW_VOL, PCI_POWERSTATE_D1);
/* parts that never be used */
agg_stopclock(ess, ACPI_PART_978, PCI_POWERSTATE_D1);
agg_stopclock(ess, ACPI_PART_DAA, PCI_POWERSTATE_D1);
agg_stopclock(ess, ACPI_PART_GPIO, PCI_POWERSTATE_D1);
agg_stopclock(ess, ACPI_PART_SB, PCI_POWERSTATE_D1);
agg_stopclock(ess, ACPI_PART_FM, PCI_POWERSTATE_D1);
agg_stopclock(ess, ACPI_PART_MIDI, PCI_POWERSTATE_D1);
agg_stopclock(ess, ACPI_PART_GAME_PORT, PCI_POWERSTATE_D1);
/* parts that will be used only when play/recording */
agg_stopclock(ess, ACPI_PART_WP, PCI_POWERSTATE_D2);
/* parts that should always be turned on */
agg_stopclock(ess, ACPI_PART_CODEC_CLOCK, PCI_POWERSTATE_D3);
agg_stopclock(ess, ACPI_PART_GLUE, PCI_POWERSTATE_D3);
agg_stopclock(ess, ACPI_PART_PCI_IF, PCI_POWERSTATE_D3);
agg_stopclock(ess, ACPI_PART_RINGBUS, PCI_POWERSTATE_D3);
/* Reset direct sound. */
AGG_WR(ess, PORT_HOSTINT_CTRL, HOSTINT_CTRL_SOFT_RESET, 2);
DELAY(100);
AGG_WR(ess, PORT_HOSTINT_CTRL, 0, 2);
DELAY(100);
AGG_WR(ess, PORT_HOSTINT_CTRL, HOSTINT_CTRL_DSOUND_RESET, 2);
DELAY(100);
AGG_WR(ess, PORT_HOSTINT_CTRL, 0, 2);
DELAY(100);
/* Enable hardware volume control interruption. */
if (data & MAESTRO_HWVOL) /* XXX - why not use device flags? */
AGG_WR(ess, PORT_HOSTINT_CTRL,HOSTINT_CTRL_HWVOL_ENABLED, 2);
/* Setup Wave Processor. */
/* Enable WaveCache, set DMA base address. */
wp_wrreg(ess, WPREG_WAVE_ROMRAM,
WP_WAVE_VIRTUAL_ENABLED | WP_WAVE_DRAM_ENABLED);
wp_wrreg(ess, WPREG_CRAM_DATA, 0);
AGG_WR(ess, PORT_WAVCACHE_CTRL,
WAVCACHE_ENABLED | WAVCACHE_WTSIZE_2MB | WAVCACHE_SGC_32_47, 2);
for (data = WAVCACHE_PCMBAR; data < WAVCACHE_PCMBAR + 4; data++)
wc_wrreg(ess, data, ess->phys >> WAVCACHE_BASEADDR_SHIFT);
/* Setup Codec/Ringbus. */
agg_initcodec(ess);
AGG_WR(ess, PORT_RINGBUS_CTRL,
RINGBUS_CTRL_RINGBUS_ENABLED | RINGBUS_CTRL_ACLINK_ENABLED, 4);
wp_wrreg(ess, 0x08, 0xB004);
wp_wrreg(ess, 0x09, 0x001B);
wp_wrreg(ess, 0x0A, 0x8000);
wp_wrreg(ess, 0x0B, 0x3F37);
wp_wrreg(ess, WPREG_BASE, 0x8598); /* Parallel I/O */
wp_wrreg(ess, WPREG_BASE + 1, 0x7632);
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);
/* Enable S/PDIF if necessary. */
if (pci_read_config(ess->dev, CONF_MAESTRO, 4) & MAESTRO_SPDIF)
/* XXX - why not use device flags? */
AGG_WR(ess, PORT_RINGBUS_CTRL_B, RINGBUS_CTRL_SPDIF |
AGG_RD(ess, PORT_RINGBUS_CTRL_B, 1), 1);
/* Setup ASSP. Needed for Dell Inspiron 7500? */
AGG_WR(ess, PORT_ASSP_CTRL_B, 0x00, 1);
AGG_WR(ess, PORT_ASSP_CTRL_A, 0x03, 1);
AGG_WR(ess, PORT_ASSP_CTRL_C, 0x00, 1);
/*
* 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. */
AGG_WR(ess, PORT_GPIO_MASK, 0x9ff, 2);
AGG_WR(ess, PORT_GPIO_DIR,
AGG_RD(ess, PORT_GPIO_DIR, 2) | 0x600, 2);
AGG_WR(ess, PORT_GPIO_DATA, 0x200, 2);
break;
}
}
/* Deals power state transition. Must be called with softc->lock held. */
static void
agg_power(struct agg_info *ess, int status)
{
u_int8_t lastpwr;
lastpwr = ess->curpwr;
if (lastpwr == status)
return;
switch (status) {
case PCI_POWERSTATE_D0:
case PCI_POWERSTATE_D1:
switch (lastpwr) {
case PCI_POWERSTATE_D2:
pci_set_powerstate(ess->dev, status);
/* Turn on PCM-related parts. */
agg_wrcodec(ess, AC97_REG_POWER, 0);
DELAY(100);
#if 0
if ((agg_rdcodec(ess, AC97_REG_POWER) & 3) != 3)
device_printf(ess->dev,
"warning: codec not ready.\n");
#endif
AGG_WR(ess, PORT_RINGBUS_CTRL,
(AGG_RD(ess, PORT_RINGBUS_CTRL, 4)
& ~RINGBUS_CTRL_ACLINK_ENABLED)
| RINGBUS_CTRL_RINGBUS_ENABLED, 4);
DELAY(50);
AGG_WR(ess, PORT_RINGBUS_CTRL,
AGG_RD(ess, PORT_RINGBUS_CTRL, 4)
| RINGBUS_CTRL_ACLINK_ENABLED, 4);
break;
case PCI_POWERSTATE_D3:
/* Initialize. */
pci_set_powerstate(ess->dev, PCI_POWERSTATE_D0);
DELAY(100);
agg_init(ess);
/* FALLTHROUGH */
case PCI_POWERSTATE_D0:
case PCI_POWERSTATE_D1:
pci_set_powerstate(ess->dev, status);
break;
}
break;
case PCI_POWERSTATE_D2:
switch (lastpwr) {
case PCI_POWERSTATE_D3:
/* Initialize. */
pci_set_powerstate(ess->dev, PCI_POWERSTATE_D0);
DELAY(100);
agg_init(ess);
/* FALLTHROUGH */
case PCI_POWERSTATE_D0:
case PCI_POWERSTATE_D1:
/* Turn off PCM-related parts. */
AGG_WR(ess, PORT_RINGBUS_CTRL,
AGG_RD(ess, PORT_RINGBUS_CTRL, 4)
& ~RINGBUS_CTRL_RINGBUS_ENABLED, 4);
DELAY(100);
agg_wrcodec(ess, AC97_REG_POWER, 0x300);
DELAY(100);
break;
}
pci_set_powerstate(ess->dev, status);
break;
case PCI_POWERSTATE_D3:
/* Entirely power down. */
agg_wrcodec(ess, AC97_REG_POWER, 0xdf00);
DELAY(100);
AGG_WR(ess, PORT_RINGBUS_CTRL, 0, 4);
/*DELAY(1);*/
if (lastpwr != PCI_POWERSTATE_D2)
wp_stoptimer(ess);
AGG_WR(ess, PORT_HOSTINT_CTRL, 0, 2);
AGG_WR(ess, PORT_HOSTINT_STAT, 0xff, 1);
pci_set_powerstate(ess->dev, status);
break;
default:
/* Invalid power state; let it ignored. */
status = lastpwr;
break;
}
ess->curpwr = status;
}
/* -------------------------------------------------------------------- */
/* Channel controller. */
static void
aggch_start_dac(struct agg_chinfo *ch)
{
bus_addr_t wpwa;
u_int32_t speed;
u_int16_t size, apuch, wtbar, wcreg, aputype;
u_int dv;
int pan;
speed = ch->speed;
wpwa = (ch->phys - ch->base) >> 1;
wtbar = 0xc & (wpwa >> WPWA_WTBAR_SHIFT(2));
wcreg = (ch->phys - 16) & WAVCACHE_CHCTL_ADDRTAG_MASK;
size = ch->buflen;
apuch = (ch->num << 1) | 32;
pan = PAN_RIGHT - PAN_FRONT;
if (ch->stereo) {
wcreg |= WAVCACHE_CHCTL_STEREO;
if (ch->qs16) {
aputype = APUTYPE_16BITSTEREO;
wpwa >>= 1;
size >>= 1;
pan = -pan;
} else
aputype = APUTYPE_8BITSTEREO;
} else {
pan = 0;
if (ch->qs16)
aputype = APUTYPE_16BITLINEAR;
else {
aputype = APUTYPE_8BITLINEAR;
speed >>= 1;
}
}
if (ch->us)
wcreg |= WAVCACHE_CHCTL_U8;
if (wtbar > 8)
wtbar = (wtbar >> 1) + 4;
dv = (((speed % 48000) << 16) + 24000) / 48000
+ ((speed / 48000) << 16);
agg_lock(ch->parent);
agg_power(ch->parent, powerstate_active);
wc_wrreg(ch->parent, WAVCACHE_WTBAR + wtbar,
ch->base >> WAVCACHE_BASEADDR_SHIFT);
wc_wrreg(ch->parent, WAVCACHE_WTBAR + wtbar + 1,
ch->base >> WAVCACHE_BASEADDR_SHIFT);
if (wtbar < 8) {
wc_wrreg(ch->parent, WAVCACHE_WTBAR + wtbar + 2,
ch->base >> WAVCACHE_BASEADDR_SHIFT);
wc_wrreg(ch->parent, WAVCACHE_WTBAR + wtbar + 3,
ch->base >> WAVCACHE_BASEADDR_SHIFT);
}
wc_wrchctl(ch->parent, apuch, wcreg);
wc_wrchctl(ch->parent, apuch + 1, wcreg);
apu_setparam(ch->parent, apuch, wpwa, size, pan, dv);
if (ch->stereo) {
if (ch->qs16)
wpwa |= (WPWA_STEREO >> 1);
apu_setparam(ch->parent, apuch + 1, wpwa, size, -pan, dv);
critical_enter();
wp_wrapu(ch->parent, apuch, APUREG_APUTYPE,
(aputype << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf);
wp_wrapu(ch->parent, apuch + 1, APUREG_APUTYPE,
(aputype << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf);
critical_exit();
} else {
wp_wrapu(ch->parent, apuch, APUREG_APUTYPE,
(aputype << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf);
}
/* to mark that this channel is ready for intr. */
ch->parent->active |= (1 << ch->num);
set_timer(ch->parent);
wp_starttimer(ch->parent);
agg_unlock(ch->parent);
}
static void
aggch_stop_dac(struct agg_chinfo *ch)
{
agg_lock(ch->parent);
/* to mark that this channel no longer needs further intrs. */
ch->parent->active &= ~(1 << ch->num);
wp_wrapu(ch->parent, (ch->num << 1) | 32, APUREG_APUTYPE,
APUTYPE_INACTIVE << APU_APUTYPE_SHIFT);
wp_wrapu(ch->parent, (ch->num << 1) | 33, APUREG_APUTYPE,
APUTYPE_INACTIVE << APU_APUTYPE_SHIFT);
if (ch->parent->active) {
set_timer(ch->parent);
wp_starttimer(ch->parent);
} else {
wp_stoptimer(ch->parent);
agg_power(ch->parent, powerstate_idle);
}
agg_unlock(ch->parent);
}
static void
aggch_start_adc(struct agg_rchinfo *ch)
{
bus_addr_t wpwa, wpwa2;
u_int16_t wcreg, wcreg2;
u_int dv;
int pan;
/* speed > 48000 not cared */
dv = ((ch->speed << 16) + 24000) / 48000;
/* RATECONV doesn't seem to like dv == 0x10000. */
if (dv == 0x10000)
dv--;
if (ch->stereo) {
wpwa = (ch->srcphys - ch->base) >> 1;
wpwa2 = (ch->srcphys + ch->parent->bufsz/2 - ch->base) >> 1;
wcreg = (ch->srcphys - 16) & WAVCACHE_CHCTL_ADDRTAG_MASK;
wcreg2 = (ch->base - 16) & WAVCACHE_CHCTL_ADDRTAG_MASK;
pan = PAN_LEFT - PAN_FRONT;
} else {
wpwa = (ch->phys - ch->base) >> 1;
wpwa2 = (ch->srcphys - ch->base) >> 1;
wcreg = (ch->phys - 16) & WAVCACHE_CHCTL_ADDRTAG_MASK;
wcreg2 = (ch->base - 16) & WAVCACHE_CHCTL_ADDRTAG_MASK;
pan = 0;
}
agg_lock(ch->parent);
ch->hwptr = 0;
agg_power(ch->parent, powerstate_active);
/* Invalidate WaveCache. */
wc_wrchctl(ch->parent, 0, wcreg | WAVCACHE_CHCTL_STEREO);
wc_wrchctl(ch->parent, 1, wcreg | WAVCACHE_CHCTL_STEREO);
wc_wrchctl(ch->parent, 2, wcreg2 | WAVCACHE_CHCTL_STEREO);
wc_wrchctl(ch->parent, 3, wcreg2 | WAVCACHE_CHCTL_STEREO);
/* Load APU registers. */
/* APU #0 : Sample rate converter for left/center. */
apu_setparam(ch->parent, 0, WPWA_USE_SYSMEM | wpwa,
ch->buflen >> ch->stereo, 0, dv);
wp_wrapu(ch->parent, 0, APUREG_AMPLITUDE, 0);
wp_wrapu(ch->parent, 0, APUREG_ROUTING, 2 << APU_DATASRC_A_SHIFT);
/* APU #1 : Sample rate converter for right. */
apu_setparam(ch->parent, 1, WPWA_USE_SYSMEM | wpwa2,
ch->buflen >> ch->stereo, 0, dv);
wp_wrapu(ch->parent, 1, APUREG_AMPLITUDE, 0);
wp_wrapu(ch->parent, 1, APUREG_ROUTING, 3 << APU_DATASRC_A_SHIFT);
/* APU #2 : Input mixer for left. */
apu_setparam(ch->parent, 2, WPWA_USE_SYSMEM | 0,
ch->parent->bufsz >> 2, pan, 0x10000);
wp_wrapu(ch->parent, 2, APUREG_AMPLITUDE, 0);
wp_wrapu(ch->parent, 2, APUREG_EFFECT_GAIN, 0xf0);
wp_wrapu(ch->parent, 2, APUREG_ROUTING, 0x15 << APU_DATASRC_A_SHIFT);
/* APU #3 : Input mixer for right. */
apu_setparam(ch->parent, 3, WPWA_USE_SYSMEM | (ch->parent->bufsz >> 2),
ch->parent->bufsz >> 2, -pan, 0x10000);
wp_wrapu(ch->parent, 3, APUREG_AMPLITUDE, 0);
wp_wrapu(ch->parent, 3, APUREG_EFFECT_GAIN, 0xf0);
wp_wrapu(ch->parent, 3, APUREG_ROUTING, 0x14 << APU_DATASRC_A_SHIFT);
/* to mark this channel ready for intr. */
ch->parent->active |= (1 << ch->parent->playchns);
/* start adc */
critical_enter();
wp_wrapu(ch->parent, 0, APUREG_APUTYPE,
(APUTYPE_RATECONV << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf);
wp_wrapu(ch->parent, 1, APUREG_APUTYPE,
(APUTYPE_RATECONV << APU_APUTYPE_SHIFT) | APU_DMA_ENABLED | 0xf);
wp_wrapu(ch->parent, 2, APUREG_APUTYPE,
(APUTYPE_INPUTMIXER << APU_APUTYPE_SHIFT) | 0xf);
wp_wrapu(ch->parent, 3, APUREG_APUTYPE,
(APUTYPE_INPUTMIXER << APU_APUTYPE_SHIFT) | 0xf);
critical_exit();
set_timer(ch->parent);
wp_starttimer(ch->parent);
agg_unlock(ch->parent);
}
static void
aggch_stop_adc(struct agg_rchinfo *ch)
{
int apuch;
agg_lock(ch->parent);
/* to mark that this channel no longer needs further intrs. */
ch->parent->active &= ~(1 << ch->parent->playchns);
for (apuch = 0; apuch < 4; apuch++)
wp_wrapu(ch->parent, apuch, APUREG_APUTYPE,
APUTYPE_INACTIVE << APU_APUTYPE_SHIFT);
if (ch->parent->active) {
set_timer(ch->parent);
wp_starttimer(ch->parent);
} else {
wp_stoptimer(ch->parent);
agg_power(ch->parent, powerstate_idle);
}
agg_unlock(ch->parent);
}
/*
* Feed from L/R channel of ADC to destination with stereo interleaving.
* This function expects n not overwrapping the buffer boundary.
* Note that n is measured in sample unit.
*
* XXX - this function works in 16bit stereo format only.
*/
static void
interleave(int16_t *l, int16_t *r, int16_t *p, unsigned n)
{
int16_t *end;
for (end = l + n; l < end; ) {
*p++ = *l++;
*p++ = *r++;
}
}
static void
aggch_feed_adc_stereo(struct agg_rchinfo *ch)
{
unsigned cur, last;
int16_t *src2;
agg_lock(ch->parent);
cur = wp_rdapu(ch->parent, 0, APUREG_CURPTR);
agg_unlock(ch->parent);
cur -= 0xffff & ((ch->srcphys - ch->base) >> 1);
last = ch->hwptr;
src2 = ch->src + ch->parent->bufsz/4;
if (cur < last) {
interleave(ch->src + last, src2 + last,
ch->sink + 2*last, ch->buflen/2 - last);
interleave(ch->src, src2,
ch->sink, cur);
} else if (cur > last)
interleave(ch->src + last, src2 + last,
ch->sink + 2*last, cur - last);
ch->hwptr = cur;
}
/*
* Feed from R channel of ADC and mixdown to destination L/center.
* This function expects n not overwrapping the buffer boundary.
* Note that n is measured in sample unit.
*
* XXX - this function works in 16bit monoral format only.
*/
static void
mixdown(int16_t *src, int16_t *dest, unsigned n)
{
int16_t *end;
for (end = dest + n; dest < end; dest++)
*dest = (int16_t)(((int)*dest - (int)*src++) / 2);
}
static void
aggch_feed_adc_mono(struct agg_rchinfo *ch)
{
unsigned cur, last;
agg_lock(ch->parent);
cur = wp_rdapu(ch->parent, 0, APUREG_CURPTR);
agg_unlock(ch->parent);
cur -= 0xffff & ((ch->phys - ch->base) >> 1);
last = ch->hwptr;
if (cur < last) {
mixdown(ch->src + last, ch->sink + last, ch->buflen - last);
mixdown(ch->src, ch->sink, cur);
} else if (cur > last)
mixdown(ch->src + last, ch->sink + last, cur - last);
ch->hwptr = cur;
}
#ifdef AGG_JITTER_CORRECTION
/*
* Stereo jitter suppressor.
* Sometimes playback pointers differ in stereo-paired channels.
* Calling this routine within intr fixes the problem.
*/
static void
suppress_jitter(struct agg_chinfo *ch)
{
if (ch->stereo) {
int cp1, cp2, diff /*, halfsize*/ ;
/*halfsize = (ch->qs16? ch->buflen >> 2 : ch->buflen >> 1);*/
cp1 = wp_rdapu(ch->parent, (ch->num << 1) | 32, APUREG_CURPTR);
cp2 = wp_rdapu(ch->parent, (ch->num << 1) | 33, APUREG_CURPTR);
if (cp1 != cp2) {
diff = (cp1 > cp2 ? cp1 - cp2 : cp2 - cp1);
if (diff > 1 /* && diff < halfsize*/ )
AGG_WR(ch->parent, PORT_DSP_DATA, cp1, 2);
}
}
}
static void
suppress_rec_jitter(struct agg_rchinfo *ch)
{
int cp1, cp2, diff /*, halfsize*/ ;
/*halfsize = (ch->stereo? ch->buflen >> 2 : ch->buflen >> 1);*/
cp1 = (ch->stereo? ch->parent->bufsz >> 2 : ch->parent->bufsz >> 1)
+ wp_rdapu(ch->parent, 0, APUREG_CURPTR);
cp2 = wp_rdapu(ch->parent, 1, APUREG_CURPTR);
if (cp1 != cp2) {
diff = (cp1 > cp2 ? cp1 - cp2 : cp2 - cp1);
if (diff > 1 /* && diff < halfsize*/ )
AGG_WR(ch->parent, PORT_DSP_DATA, cp1, 2);
}
}
#endif
static u_int
calc_timer_div(struct agg_chinfo *ch)
{
u_int speed;
speed = ch->speed;
#ifdef INVARIANTS
if (speed == 0) {
printf("snd_maestro: pch[%d].speed == 0, which shouldn't\n",
ch->num);
speed = 1;
}
#endif
return (48000 * (ch->blklen << (!ch->qs16 + !ch->stereo))
+ speed - 1) / speed;
}
static u_int
calc_timer_div_rch(struct agg_rchinfo *ch)
{
u_int speed;
speed = ch->speed;
#ifdef INVARIANTS
if (speed == 0) {
printf("snd_maestro: rch.speed == 0, which shouldn't\n");
speed = 1;
}
#endif
return (48000 * (ch->blklen << (!ch->stereo))
+ speed - 1) / speed;
}
static void
set_timer(struct agg_info *ess)
{
int i;
u_int dv = 32 << 7, newdv;
for (i = 0; i < ess->playchns; i++)
if ((ess->active & (1 << i)) &&
(dv > (newdv = calc_timer_div(ess->pch + i))))
dv = newdv;
if ((ess->active & (1 << i)) &&
(dv > (newdv = calc_timer_div_rch(&ess->rch))))
dv = newdv;
wp_settimer(ess, dv);
}
/* -----------------------------
* Newpcm glue.
*/
/* AC97 mixer interface. */
static u_int32_t
agg_ac97_init(kobj_t obj, void *sc)
{
struct agg_info *ess = sc;
return (AGG_RD(ess, PORT_CODEC_STAT, 1) & CODEC_STAT_MASK)? 0 : 1;
}
static int
agg_ac97_read(kobj_t obj, void *sc, int regno)
{
struct agg_info *ess = sc;
int ret;
/* XXX sound locking violation: agg_lock(ess); */
ret = agg_rdcodec(ess, regno);
/* agg_unlock(ess); */
return ret;
}
static int
agg_ac97_write(kobj_t obj, void *sc, int regno, u_int32_t data)
{
struct agg_info *ess = sc;
int ret;
/* XXX sound locking violation: agg_lock(ess); */
ret = agg_wrcodec(ess, regno, data);
/* agg_unlock(ess); */
return ret;
}
static kobj_method_t agg_ac97_methods[] = {
KOBJMETHOD(ac97_init, agg_ac97_init),
KOBJMETHOD(ac97_read, agg_ac97_read),
KOBJMETHOD(ac97_write, agg_ac97_write),
{ 0, 0 }
};
AC97_DECLARE(agg_ac97);
/* -------------------------------------------------------------------- */
/* Playback channel. */
static void *
aggpch_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
struct pcm_channel *c, int dir)
{
struct agg_info *ess = devinfo;
struct agg_chinfo *ch;
bus_addr_t physaddr;
void *p;
KASSERT((dir == PCMDIR_PLAY),
("aggpch_init() called for RECORDING channel!"));
ch = ess->pch + ess->playchns;
ch->parent = ess;
ch->channel = c;
ch->buffer = b;
ch->num = ess->playchns;
p = dma_malloc(ess->buf_dmat, ess->bufsz, &physaddr);
if (p == NULL)
return NULL;
ch->phys = physaddr;
ch->base = physaddr & ((~(bus_addr_t)0) << WAVCACHE_BASEADDR_SHIFT);
sndbuf_setup(b, p, ess->bufsz);
ch->blklen = sndbuf_getblksz(b) / 2;
ch->buflen = sndbuf_getsize(b) / 2;
ess->playchns++;
return ch;
}
static void
adjust_pchbase(struct agg_chinfo *chans, u_int n, u_int size)
{
struct agg_chinfo *pchs[AGG_MAXPLAYCH];
u_int i, j, k;
bus_addr_t base;
/* sort pchs by phys address */
for (i = 0; i < n; i++) {
for (j = 0; j < i; j++)
if (chans[i].phys < pchs[j]->phys) {
for (k = i; k > j; k--)
pchs[k] = pchs[k - 1];
break;
}
pchs[j] = chans + i;
}
/* use new base register if next buffer can not be addressed
via current base. */
#define BASE_SHIFT (WPWA_WTBAR_SHIFT(2) + 2 + 1)
base = pchs[0]->base;
for (k = 1, i = 1; i < n; i++) {
if (pchs[i]->phys + size - base >= 1 << BASE_SHIFT)
/* not addressable: assign new base */
base = (pchs[i]->base -= k++ << BASE_SHIFT);
else
pchs[i]->base = base;
}
#undef BASE_SHIFT
if (bootverbose) {
printf("Total of %d bases are assigned.\n", k);
for (i = 0; i < n; i++) {
printf("ch.%d: phys 0x%llx, wpwa 0x%llx\n",
i, (long long)chans[i].phys,
(long long)(chans[i].phys -
chans[i].base) >> 1);
}
}
}
static int
aggpch_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->buf_dmat, sndbuf_getbuf(ch->buffer));
/* return 0 if ok */
return 0;
}
static int
aggpch_setformat(kobj_t obj, void *data, u_int32_t format)
{
struct agg_chinfo *ch = data;
if (format & AFMT_BIGENDIAN || format & AFMT_U16_LE)
return EINVAL;
ch->stereo = ch->qs16 = ch->us = 0;
if (format & AFMT_STEREO)
ch->stereo = 1;
if (format & AFMT_U8 || format & AFMT_S8) {
if (format & AFMT_U8)
ch->us = 1;
} else
ch->qs16 = 1;
return 0;
}
static int
aggpch_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
return ((struct agg_chinfo*)data)->speed = speed;
}
static int
aggpch_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
struct agg_chinfo *ch = data;
int blkcnt;
/* try to keep at least 20msec DMA space */
blkcnt = (ch->speed << (ch->stereo + ch->qs16)) / (50 * blocksize);
RANGE(blkcnt, 2, ch->parent->bufsz / blocksize);
if (sndbuf_getsize(ch->buffer) != blkcnt * blocksize) {
sndbuf_resize(ch->buffer, blkcnt, blocksize);
blkcnt = sndbuf_getblkcnt(ch->buffer);
blocksize = sndbuf_getblksz(ch->buffer);
} else {
sndbuf_setblkcnt(ch->buffer, blkcnt);
sndbuf_setblksz(ch->buffer, blocksize);
}
ch->blklen = blocksize / 2;
ch->buflen = blkcnt * blocksize / 2;
return blocksize;
}
static int
aggpch_trigger(kobj_t obj, void *data, int go)
{
struct agg_chinfo *ch = data;
switch (go) {
case PCMTRIG_EMLDMAWR:
break;
case PCMTRIG_START:
aggch_start_dac(ch);
break;
case PCMTRIG_ABORT:
case PCMTRIG_STOP:
aggch_stop_dac(ch);
break;
}
return 0;
}
static int
aggpch_getptr(kobj_t obj, void *data)
{
struct agg_chinfo *ch = data;
u_int cp;
agg_lock(ch->parent);
cp = wp_rdapu(ch->parent, (ch->num << 1) | 32, APUREG_CURPTR);
agg_unlock(ch->parent);
return ch->qs16 && ch->stereo
? (cp << 2) - ((0xffff << 2) & (ch->phys - ch->base))
: (cp << 1) - ((0xffff << 1) & (ch->phys - ch->base));
}
static struct pcmchan_caps *
aggpch_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 struct pcmchan_caps playcaps = {8000, 48000, playfmt, 0};
return &playcaps;
}
static kobj_method_t aggpch_methods[] = {
KOBJMETHOD(channel_init, aggpch_init),
KOBJMETHOD(channel_free, aggpch_free),
KOBJMETHOD(channel_setformat, aggpch_setformat),
KOBJMETHOD(channel_setspeed, aggpch_setspeed),
KOBJMETHOD(channel_setblocksize, aggpch_setblocksize),
KOBJMETHOD(channel_trigger, aggpch_trigger),
KOBJMETHOD(channel_getptr, aggpch_getptr),
KOBJMETHOD(channel_getcaps, aggpch_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(aggpch);
/* -------------------------------------------------------------------- */
/* Recording channel. */
static void *
aggrch_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
struct pcm_channel *c, int dir)
{
struct agg_info *ess = devinfo;
struct agg_rchinfo *ch;
u_int8_t *p;
KASSERT((dir == PCMDIR_REC),
("aggrch_init() called for PLAYBACK channel!"));
ch = &ess->rch;
ch->parent = ess;
ch->channel = c;
ch->buffer = b;
/* Uses the bottom-half of the status buffer. */
p = ess->stat + ess->bufsz;
ch->phys = ess->phys + ess->bufsz;
ch->base = ess->phys;
ch->src = (int16_t *)(p + ess->bufsz);
ch->srcphys = ch->phys + ess->bufsz;
ch->sink = (int16_t *)p;
sndbuf_setup(b, p, ess->bufsz);
ch->blklen = sndbuf_getblksz(b) / 2;
ch->buflen = sndbuf_getsize(b) / 2;
return ch;
}
static int
aggrch_setformat(kobj_t obj, void *data, u_int32_t format)
{
struct agg_rchinfo *ch = data;
if (!(format & AFMT_S16_LE))
return EINVAL;
if (format & AFMT_STEREO)
ch->stereo = 1;
else
ch->stereo = 0;
return 0;
}
static int
aggrch_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
return ((struct agg_rchinfo*)data)->speed = speed;
}
static int
aggrch_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
struct agg_rchinfo *ch = data;
int blkcnt;
/* try to keep at least 20msec DMA space */
blkcnt = (ch->speed << ch->stereo) / (25 * blocksize);
RANGE(blkcnt, 2, ch->parent->bufsz / blocksize);
if (sndbuf_getsize(ch->buffer) != blkcnt * blocksize) {
sndbuf_resize(ch->buffer, blkcnt, blocksize);
blkcnt = sndbuf_getblkcnt(ch->buffer);
blocksize = sndbuf_getblksz(ch->buffer);
} else {
sndbuf_setblkcnt(ch->buffer, blkcnt);
sndbuf_setblksz(ch->buffer, blocksize);
}
ch->blklen = blocksize / 2;
ch->buflen = blkcnt * blocksize / 2;
return blocksize;
}
static int
aggrch_trigger(kobj_t obj, void *sc, int go)
{
struct agg_rchinfo *ch = sc;
switch (go) {
case PCMTRIG_EMLDMARD:
if (ch->stereo)
aggch_feed_adc_stereo(ch);
else
aggch_feed_adc_mono(ch);
break;
case PCMTRIG_START:
aggch_start_adc(ch);
break;
case PCMTRIG_ABORT:
case PCMTRIG_STOP:
aggch_stop_adc(ch);
break;
}
return 0;
}
static int
aggrch_getptr(kobj_t obj, void *sc)
{
struct agg_rchinfo *ch = sc;
return ch->stereo? ch->hwptr << 2 : ch->hwptr << 1;
}
static struct pcmchan_caps *
aggrch_getcaps(kobj_t obj, void *sc)
{
static u_int32_t recfmt[] = {
AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE,
0
};
static struct pcmchan_caps reccaps = {8000, 48000, recfmt, 0};
return &reccaps;
}
static kobj_method_t aggrch_methods[] = {
KOBJMETHOD(channel_init, aggrch_init),
/* channel_free: no-op */
KOBJMETHOD(channel_setformat, aggrch_setformat),
KOBJMETHOD(channel_setspeed, aggrch_setspeed),
KOBJMETHOD(channel_setblocksize, aggrch_setblocksize),
KOBJMETHOD(channel_trigger, aggrch_trigger),
KOBJMETHOD(channel_getptr, aggrch_getptr),
KOBJMETHOD(channel_getcaps, aggrch_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(aggrch);
/* -----------------------------
* Bus space.
*/
static void
agg_intr(void *sc)
{
struct agg_info* ess = sc;
register u_int8_t status;
int i;
u_int m;
status = AGG_RD(ess, PORT_HOSTINT_STAT, 1);
if (!status)
return;
/* Acknowledge intr. */
AGG_WR(ess, PORT_HOSTINT_STAT, status, 1);
if (status & HOSTINT_STAT_DSOUND) {
#ifdef AGG_JITTER_CORRECTION
agg_lock(ess);
#endif
if (ess->curpwr <= PCI_POWERSTATE_D1) {
AGG_WR(ess, PORT_INT_STAT, 1, 2);
#ifdef AGG_JITTER_CORRECTION
for (i = 0, m = 1; i < ess->playchns; i++, m <<= 1) {
if (ess->active & m)
suppress_jitter(ess->pch + i);
}
if (ess->active & m)
suppress_rec_jitter(&ess->rch);
agg_unlock(ess);
#endif
for (i = 0, m = 1; i < ess->playchns; i++, m <<= 1) {
if (ess->active & m) {
if (ess->curpwr <= PCI_POWERSTATE_D1)
chn_intr(ess->pch[i].channel);
else {
m = 0;
break;
}
}
}
if ((ess->active & m)
&& ess->curpwr <= PCI_POWERSTATE_D1)
chn_intr(ess->rch.channel);
}
#ifdef AGG_JITTER_CORRECTION
else
agg_unlock(ess);
#endif
}
if (status & HOSTINT_STAT_HWVOL) {
register u_int8_t event;
agg_lock(ess);
event = AGG_RD(ess, PORT_HWVOL_MASTER, 1);
AGG_WR(ess, PORT_HWVOL_MASTER, HWVOL_NOP, 1);
agg_unlock(ess);
switch (event) {
case HWVOL_UP:
mixer_hwvol_step(ess->dev, 1, 1);
break;
case HWVOL_DOWN:
mixer_hwvol_step(ess->dev, -1, -1);
break;
case HWVOL_NOP:
break;
default:
if (event & HWVOL_MUTE) {
mixer_hwvol_mute(ess->dev);
break;
}
device_printf(ess->dev,
"%s: unknown HWVOL event 0x%x\n",
device_get_nameunit(ess->dev), event);
}
}
}
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(bus_dma_tag_t dmat, u_int32_t sz, bus_addr_t *phys)
{
void *buf;
bus_dmamap_t map;
if (bus_dmamem_alloc(dmat, &buf, BUS_DMA_NOWAIT, &map))
return NULL;
if (bus_dmamap_load(dmat, map, buf, sz, setmap, phys, 0)
|| !*phys || map) {
bus_dmamem_free(dmat, buf, map);
return NULL;
}
return buf;
}
static void
dma_free(bus_dma_tag_t dmat, void *buf)
{
bus_dmamem_free(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 BUS_PROBE_DEFAULT;
}
return ENXIO;
}
static int
agg_attach(device_t dev)
{
struct agg_info *ess = NULL;
u_int32_t data;
int regid = PCIR_BAR(0);
struct resource *reg = NULL;
struct ac97_info *codec = NULL;
int irqid = 0;
struct resource *irq = NULL;
void *ih = NULL;
char status[SND_STATUSLEN];
int ret = 0;
if ((ess = malloc(sizeof *ess, M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) {
device_printf(dev, "cannot allocate softc\n");
ret = ENOMEM;
goto bad;
}
ess->dev = dev;
#ifdef USING_MUTEX
mtx_init(&ess->lock, device_get_desc(dev), "snd_maestro softc",
MTX_DEF | MTX_RECURSE);
if (!mtx_initialized(&ess->lock)) {
device_printf(dev, "failed to create a mutex.\n");
ret = ENOMEM;
goto bad;
}
#endif
ess->bufsz = pcm_getbuffersize(dev, 4096, AGG_DEFAULT_BUFSZ, 65536);
if (bus_dma_tag_create(/*parent*/ bus_get_dma_tag(dev),
/*align */ 4, 1 << (16+1),
/*limit */ MAESTRO_MAXADDR, BUS_SPACE_MAXADDR,
/*filter*/ NULL, NULL,
/*size */ ess->bufsz, 1, 0x3ffff,
/*flags */ 0,
#if __FreeBSD_version >= 501102
/*lock */ busdma_lock_mutex, &Giant,
#endif
&ess->buf_dmat) != 0) {
device_printf(dev, "unable to create dma tag\n");
ret = ENOMEM;
goto bad;
}
if (bus_dma_tag_create(/*parent*/ bus_get_dma_tag(dev),
/*align */ 1 << WAVCACHE_BASEADDR_SHIFT,
1 << (16+1),
/*limit */ MAESTRO_MAXADDR, BUS_SPACE_MAXADDR,
/*filter*/ NULL, NULL,
/*size */ 3*ess->bufsz, 1, 0x3ffff,
/*flags */ 0,
#if __FreeBSD_version >= 501102
/*lock */ busdma_lock_mutex, &Giant,
#endif
&ess->stat_dmat) != 0) {
device_printf(dev, "unable to create dma tag\n");
ret = ENOMEM;
goto bad;
}
/* Allocate the room for brain-damaging status buffer. */
ess->stat = dma_malloc(ess->stat_dmat, 3*ess->bufsz, &ess->phys);
if (ess->stat == NULL) {
device_printf(dev, "cannot allocate status buffer\n");
ret = ENOMEM;
goto bad;
}
if (bootverbose)
device_printf(dev, "Maestro status/record buffer: %#llx\n",
(long long)ess->phys);
/* State D0-uninitialized. */
ess->curpwr = PCI_POWERSTATE_D3;
pci_set_powerstate(dev, PCI_POWERSTATE_D0);
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);
/* Allocate resources. */
if (data & PCIM_CMD_PORTEN)
reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &regid,
RF_ACTIVE);
if (reg != NULL) {
ess->reg = reg;
ess->regid = regid;
ess->st = rman_get_bustag(reg);
ess->sh = rman_get_bushandle(reg);
} else {
device_printf(dev, "unable to map register space\n");
ret = ENXIO;
goto bad;
}
irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irqid,
RF_ACTIVE | RF_SHAREABLE);
if (irq != NULL) {
ess->irq = irq;
ess->irqid = irqid;
} else {
device_printf(dev, "unable to map interrupt\n");
ret = ENXIO;
goto bad;
}
/* Setup resources. */
if (snd_setup_intr(dev, irq, INTR_MPSAFE, agg_intr, ess, &ih)) {
device_printf(dev, "unable to setup interrupt\n");
ret = ENXIO;
goto bad;
} else
ess->ih = ih;
/* Transition from D0-uninitialized to D0. */
agg_lock(ess);
agg_power(ess, PCI_POWERSTATE_D0);
if (agg_rdcodec(ess, 0) == 0x80) {
/* XXX - TODO: PT101 */
agg_unlock(ess);
device_printf(dev, "PT101 codec detected!\n");
ret = ENXIO;
goto bad;
}
agg_unlock(ess);
codec = AC97_CREATE(dev, ess, agg_ac97);
if (codec == NULL) {
device_printf(dev, "failed to create AC97 codec softc!\n");
ret = ENOMEM;
goto bad;
}
if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) {
device_printf(dev, "mixer initialization failed!\n");
ret = ENXIO;
goto bad;
}
ess->codec = codec;
ret = pcm_register(dev, ess, AGG_MAXPLAYCH, 1);
if (ret)
goto bad;
mixer_hwvol_init(dev);
agg_lock(ess);
agg_power(ess, powerstate_init);
agg_unlock(ess);
for (data = 0; data < AGG_MAXPLAYCH; data++)
pcm_addchan(dev, PCMDIR_PLAY, &aggpch_class, ess);
pcm_addchan(dev, PCMDIR_REC, &aggrch_class, ess);
adjust_pchbase(ess->pch, ess->playchns, ess->bufsz);
snprintf(status, SND_STATUSLEN,
"port 0x%lx-0x%lx irq %ld at device %d.%d on pci%d",
rman_get_start(reg), rman_get_end(reg), rman_get_start(irq),
pci_get_slot(dev), pci_get_function(dev), pci_get_bus(dev));
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) {
if (ess->stat != NULL)
dma_free(ess->stat_dmat, ess->stat);
if (ess->stat_dmat != NULL)
bus_dma_tag_destroy(ess->stat_dmat);
if (ess->buf_dmat != NULL)
bus_dma_tag_destroy(ess->buf_dmat);
#ifdef USING_MUTEX
if (mtx_initialized(&ess->lock))
mtx_destroy(&ess->lock);
#endif
free(ess, M_DEVBUF);
}
return ret;
}
static int
agg_detach(device_t dev)
{
struct agg_info *ess = pcm_getdevinfo(dev);
int r;
u_int16_t icr;
icr = AGG_RD(ess, PORT_HOSTINT_CTRL, 2);
AGG_WR(ess, PORT_HOSTINT_CTRL, 0, 2);
agg_lock(ess);
if (ess->active) {
AGG_WR(ess, PORT_HOSTINT_CTRL, icr, 2);
agg_unlock(ess);
return EBUSY;
}
agg_unlock(ess);
r = pcm_unregister(dev);
if (r) {
AGG_WR(ess, PORT_HOSTINT_CTRL, icr, 2);
return r;
}
agg_lock(ess);
agg_power(ess, PCI_POWERSTATE_D3);
agg_unlock(ess);
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);
dma_free(ess->stat_dmat, ess->stat);
bus_dma_tag_destroy(ess->stat_dmat);
bus_dma_tag_destroy(ess->buf_dmat);
#ifdef USING_MUTEX
mtx_destroy(&ess->lock);
#endif
free(ess, M_DEVBUF);
return 0;
}
static int
agg_suspend(device_t dev)
{
struct agg_info *ess = pcm_getdevinfo(dev);
#ifndef USING_MUTEX
int x;
x = spltty();
#endif
AGG_WR(ess, PORT_HOSTINT_CTRL, 0, 2);
agg_lock(ess);
agg_power(ess, PCI_POWERSTATE_D3);
agg_unlock(ess);
#ifndef USING_MUTEX
splx(x);
#endif
return 0;
}
static int
agg_resume(device_t dev)
{
int i;
struct agg_info *ess = pcm_getdevinfo(dev);
#ifndef USING_MUTEX
int x;
x = spltty();
#endif
for (i = 0; i < ess->playchns; i++)
if (ess->active & (1 << i))
aggch_start_dac(ess->pch + i);
if (ess->active & (1 << i))
aggch_start_adc(&ess->rch);
agg_lock(ess);
if (!ess->active)
agg_power(ess, powerstate_init);
agg_unlock(ess);
#ifndef USING_MUTEX
splx(x);
#endif
if (mixer_reinit(dev)) {
device_printf(dev, "unable to reinitialize the mixer\n");
return ENXIO;
}
return 0;
}
static int
agg_shutdown(device_t dev)
{
struct agg_info *ess = pcm_getdevinfo(dev);
agg_lock(ess);
agg_power(ess, PCI_POWERSTATE_D3);
agg_unlock(ess);
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,
PCM_SOFTC_SIZE,
};
/*static devclass_t pcm_devclass;*/
DRIVER_MODULE(snd_maestro, pci, agg_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_maestro, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(snd_maestro, 1);
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