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freebsd-dev/sys/dev/sound/pci/ich.c
Seigo Tanimura 0739ea1de2 Rename the sound device drivers: 
- `sound'
  The generic sound driver, always required.

- `snd_*'
  Device-dependent drivers, named after the sound module names.
  Configure accordingly to your hardware.

In addition, rename the `snd_pcm' module to `sound' in order to sync
with the driver names.

Suggested by:	cg
2004-07-16 04:00:08 +00:00

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/*
* Copyright (c) 2000 Katsurajima Naoto <raven@katsurajima.seya.yokohama.jp>
* Copyright (c) 2001 Cameron Grant <cg@freebsd.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.
*
* 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, WHETHERIN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF
* SUCH DAMAGE.
*/
#include <dev/sound/pcm/sound.h>
#include <dev/sound/pcm/ac97.h>
#include <dev/sound/pci/ich.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
SND_DECLARE_FILE("$FreeBSD$");
/* -------------------------------------------------------------------- */
#define ICH_TIMEOUT 1000 /* semaphore timeout polling count */
#define ICH_DTBL_LENGTH 32
#define ICH_DEFAULT_BUFSZ 16384
#define ICH_MAX_BUFSZ 65536
#define SIS7012ID 0x70121039 /* SiS 7012 needs special handling */
#define ICH4ID 0x24c58086 /* ICH4 needs special handling too */
#define ICH5ID 0x24d58086 /* ICH5 needs to be treated as ICH4 */
/* buffer descriptor */
struct ich_desc {
volatile u_int32_t buffer;
volatile u_int32_t length;
};
struct sc_info;
/* channel registers */
struct sc_chinfo {
u_int32_t num:8, run:1, run_save:1;
u_int32_t blksz, blkcnt, spd;
u_int32_t regbase, spdreg;
u_int32_t imask;
u_int32_t civ;
struct snd_dbuf *buffer;
struct pcm_channel *channel;
struct sc_info *parent;
struct ich_desc *dtbl;
bus_addr_t desc_addr;
};
/* device private data */
struct sc_info {
device_t dev;
int hasvra, hasvrm, hasmic;
unsigned int chnum, bufsz;
int sample_size, swap_reg;
struct resource *nambar, *nabmbar, *irq;
int regtype, nambarid, nabmbarid, irqid;
bus_space_tag_t nambart, nabmbart;
bus_space_handle_t nambarh, nabmbarh;
bus_dma_tag_t dmat;
bus_dmamap_t dtmap;
void *ih;
struct ac97_info *codec;
struct sc_chinfo ch[3];
int ac97rate;
struct ich_desc *dtbl;
bus_addr_t desc_addr;
struct intr_config_hook intrhook;
int use_intrhook;
};
/* -------------------------------------------------------------------- */
static u_int32_t ich_fmt[] = {
AFMT_STEREO | AFMT_S16_LE,
0
};
static struct pcmchan_caps ich_vrcaps = {8000, 48000, ich_fmt, 0};
static struct pcmchan_caps ich_caps = {48000, 48000, ich_fmt, 0};
/* -------------------------------------------------------------------- */
/* Hardware */
static u_int32_t
ich_rd(struct sc_info *sc, int regno, int size)
{
switch (size) {
case 1:
return bus_space_read_1(sc->nabmbart, sc->nabmbarh, regno);
case 2:
return bus_space_read_2(sc->nabmbart, sc->nabmbarh, regno);
case 4:
return bus_space_read_4(sc->nabmbart, sc->nabmbarh, regno);
default:
return 0xffffffff;
}
}
static void
ich_wr(struct sc_info *sc, int regno, u_int32_t data, int size)
{
switch (size) {
case 1:
bus_space_write_1(sc->nabmbart, sc->nabmbarh, regno, data);
break;
case 2:
bus_space_write_2(sc->nabmbart, sc->nabmbarh, regno, data);
break;
case 4:
bus_space_write_4(sc->nabmbart, sc->nabmbarh, regno, data);
break;
}
}
/* ac97 codec */
static int
ich_waitcd(void *devinfo)
{
int i;
u_int32_t data;
struct sc_info *sc = (struct sc_info *)devinfo;
for (i = 0; i < ICH_TIMEOUT; i++) {
data = ich_rd(sc, ICH_REG_ACC_SEMA, 1);
if ((data & 0x01) == 0)
return 0;
}
device_printf(sc->dev, "CODEC semaphore timeout\n");
return ETIMEDOUT;
}
static int
ich_rdcd(kobj_t obj, void *devinfo, int regno)
{
struct sc_info *sc = (struct sc_info *)devinfo;
regno &= 0xff;
ich_waitcd(sc);
return bus_space_read_2(sc->nambart, sc->nambarh, regno);
}
static int
ich_wrcd(kobj_t obj, void *devinfo, int regno, u_int16_t data)
{
struct sc_info *sc = (struct sc_info *)devinfo;
regno &= 0xff;
ich_waitcd(sc);
bus_space_write_2(sc->nambart, sc->nambarh, regno, data);
return 0;
}
static kobj_method_t ich_ac97_methods[] = {
KOBJMETHOD(ac97_read, ich_rdcd),
KOBJMETHOD(ac97_write, ich_wrcd),
{ 0, 0 }
};
AC97_DECLARE(ich_ac97);
/* -------------------------------------------------------------------- */
/* common routines */
static void
ich_filldtbl(struct sc_chinfo *ch)
{
u_int32_t base;
int i;
base = sndbuf_getbufaddr(ch->buffer);
ch->blkcnt = sndbuf_getsize(ch->buffer) / ch->blksz;
if (ch->blkcnt != 2 && ch->blkcnt != 4 && ch->blkcnt != 8 && ch->blkcnt != 16 && ch->blkcnt != 32) {
ch->blkcnt = 2;
ch->blksz = sndbuf_getsize(ch->buffer) / ch->blkcnt;
}
for (i = 0; i < ICH_DTBL_LENGTH; i++) {
ch->dtbl[i].buffer = base + (ch->blksz * (i % ch->blkcnt));
ch->dtbl[i].length = ICH_BDC_IOC
| (ch->blksz / ch->parent->sample_size);
}
}
static int
ich_resetchan(struct sc_info *sc, int num)
{
int i, cr, regbase;
if (num == 0)
regbase = ICH_REG_PO_BASE;
else if (num == 1)
regbase = ICH_REG_PI_BASE;
else if (num == 2)
regbase = ICH_REG_MC_BASE;
else
return ENXIO;
ich_wr(sc, regbase + ICH_REG_X_CR, 0, 1);
DELAY(100);
ich_wr(sc, regbase + ICH_REG_X_CR, ICH_X_CR_RR, 1);
for (i = 0; i < ICH_TIMEOUT; i++) {
cr = ich_rd(sc, regbase + ICH_REG_X_CR, 1);
if (cr == 0)
return 0;
}
device_printf(sc->dev, "cannot reset channel %d\n", num);
return ENXIO;
}
/* -------------------------------------------------------------------- */
/* channel interface */
static void *
ichchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
{
struct sc_info *sc = devinfo;
struct sc_chinfo *ch;
unsigned int num;
num = sc->chnum++;
ch = &sc->ch[num];
ch->num = num;
ch->buffer = b;
ch->channel = c;
ch->parent = sc;
ch->run = 0;
ch->dtbl = sc->dtbl + (ch->num * ICH_DTBL_LENGTH);
ch->desc_addr = sc->desc_addr + (ch->num * ICH_DTBL_LENGTH) *
sizeof(struct ich_desc);
ch->blkcnt = 2;
ch->blksz = sc->bufsz / ch->blkcnt;
switch(ch->num) {
case 0: /* play */
KASSERT(dir == PCMDIR_PLAY, ("wrong direction"));
ch->regbase = ICH_REG_PO_BASE;
ch->spdreg = sc->hasvra? AC97_REGEXT_FDACRATE : 0;
ch->imask = ICH_GLOB_STA_POINT;
break;
case 1: /* record */
KASSERT(dir == PCMDIR_REC, ("wrong direction"));
ch->regbase = ICH_REG_PI_BASE;
ch->spdreg = sc->hasvra? AC97_REGEXT_LADCRATE : 0;
ch->imask = ICH_GLOB_STA_PIINT;
break;
case 2: /* mic */
KASSERT(dir == PCMDIR_REC, ("wrong direction"));
ch->regbase = ICH_REG_MC_BASE;
ch->spdreg = sc->hasvrm? AC97_REGEXT_MADCRATE : 0;
ch->imask = ICH_GLOB_STA_MINT;
break;
default:
return NULL;
}
if (sndbuf_alloc(ch->buffer, sc->dmat, sc->bufsz))
return NULL;
ich_wr(sc, ch->regbase + ICH_REG_X_BDBAR, (u_int32_t)(ch->desc_addr), 4);
return ch;
}
static int
ichchan_setformat(kobj_t obj, void *data, u_int32_t format)
{
return 0;
}
static int
ichchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
struct sc_chinfo *ch = data;
struct sc_info *sc = ch->parent;
if (ch->spdreg) {
int r;
if (sc->ac97rate <= 32000 || sc->ac97rate >= 64000)
sc->ac97rate = 48000;
r = (speed * 48000) / sc->ac97rate;
/*
* Cast the return value of ac97_setrate() to u_int so that
* the math don't overflow into the negative range.
*/
ch->spd = ((u_int)ac97_setrate(sc->codec, ch->spdreg, r) *
sc->ac97rate) / 48000;
} else {
ch->spd = 48000;
}
return ch->spd;
}
static int
ichchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
struct sc_chinfo *ch = data;
struct sc_info *sc = ch->parent;
ch->blksz = blocksize;
ich_filldtbl(ch);
ich_wr(sc, ch->regbase + ICH_REG_X_LVI, ch->blkcnt - 1, 1);
return ch->blksz;
}
static int
ichchan_trigger(kobj_t obj, void *data, int go)
{
struct sc_chinfo *ch = data;
struct sc_info *sc = ch->parent;
switch (go) {
case PCMTRIG_START:
ch->run = 1;
ich_wr(sc, ch->regbase + ICH_REG_X_BDBAR, (u_int32_t)(ch->desc_addr), 4);
ich_wr(sc, ch->regbase + ICH_REG_X_CR, ICH_X_CR_RPBM | ICH_X_CR_LVBIE | ICH_X_CR_IOCE, 1);
break;
case PCMTRIG_ABORT:
ich_resetchan(sc, ch->num);
ch->run = 0;
break;
}
return 0;
}
static int
ichchan_getptr(kobj_t obj, void *data)
{
struct sc_chinfo *ch = data;
struct sc_info *sc = ch->parent;
u_int32_t pos;
ch->civ = ich_rd(sc, ch->regbase + ICH_REG_X_CIV, 1) % ch->blkcnt;
pos = ch->civ * ch->blksz;
return pos;
}
static struct pcmchan_caps *
ichchan_getcaps(kobj_t obj, void *data)
{
struct sc_chinfo *ch = data;
return ch->spdreg? &ich_vrcaps : &ich_caps;
}
static kobj_method_t ichchan_methods[] = {
KOBJMETHOD(channel_init, ichchan_init),
KOBJMETHOD(channel_setformat, ichchan_setformat),
KOBJMETHOD(channel_setspeed, ichchan_setspeed),
KOBJMETHOD(channel_setblocksize, ichchan_setblocksize),
KOBJMETHOD(channel_trigger, ichchan_trigger),
KOBJMETHOD(channel_getptr, ichchan_getptr),
KOBJMETHOD(channel_getcaps, ichchan_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(ichchan);
/* -------------------------------------------------------------------- */
/* The interrupt handler */
static void
ich_intr(void *p)
{
struct sc_info *sc = (struct sc_info *)p;
struct sc_chinfo *ch;
u_int32_t cbi, lbi, lvi, st, gs;
int i;
gs = ich_rd(sc, ICH_REG_GLOB_STA, 4) & ICH_GLOB_STA_IMASK;
if (gs & (ICH_GLOB_STA_PRES | ICH_GLOB_STA_SRES)) {
/* Clear resume interrupt(s) - nothing doing with them */
ich_wr(sc, ICH_REG_GLOB_STA, gs, 4);
}
gs &= ~(ICH_GLOB_STA_PRES | ICH_GLOB_STA_SRES);
for (i = 0; i < 3; i++) {
ch = &sc->ch[i];
if ((ch->imask & gs) == 0)
continue;
gs &= ~ch->imask;
st = ich_rd(sc, ch->regbase +
(sc->swap_reg ? ICH_REG_X_PICB : ICH_REG_X_SR),
2);
st &= ICH_X_SR_FIFOE | ICH_X_SR_BCIS | ICH_X_SR_LVBCI;
if (st & (ICH_X_SR_BCIS | ICH_X_SR_LVBCI)) {
/* block complete - update buffer */
if (ch->run)
chn_intr(ch->channel);
lvi = ich_rd(sc, ch->regbase + ICH_REG_X_LVI, 1);
cbi = ch->civ % ch->blkcnt;
if (cbi == 0)
cbi = ch->blkcnt - 1;
else
cbi--;
lbi = lvi % ch->blkcnt;
if (cbi >= lbi)
lvi += cbi - lbi;
else
lvi += cbi + ch->blkcnt - lbi;
lvi %= ICH_DTBL_LENGTH;
ich_wr(sc, ch->regbase + ICH_REG_X_LVI, lvi, 1);
}
/* clear status bit */
ich_wr(sc, ch->regbase +
(sc->swap_reg ? ICH_REG_X_PICB : ICH_REG_X_SR),
st, 2);
}
if (gs != 0) {
device_printf(sc->dev,
"Unhandled interrupt, gs_intr = %x\n", gs);
}
}
/* ------------------------------------------------------------------------- */
/* Sysctl to control ac97 speed (some boards appear to end up using
* XTAL_IN rather than BIT_CLK for link timing).
*/
static int
ich_initsys(struct sc_info* sc)
{
#ifdef SND_DYNSYSCTL
SYSCTL_ADD_INT(snd_sysctl_tree(sc->dev),
SYSCTL_CHILDREN(snd_sysctl_tree_top(sc->dev)),
OID_AUTO, "ac97rate", CTLFLAG_RW,
&sc->ac97rate, 48000,
"AC97 link rate (default = 48000)");
#endif /* SND_DYNSYSCTL */
return 0;
}
/* -------------------------------------------------------------------- */
/* Calibrate card to determine the clock source. The source maybe a
* function of the ac97 codec initialization code (to be investigated).
*/
static
void ich_calibrate(void *arg)
{
struct sc_info *sc;
struct sc_chinfo *ch;
struct timeval t1, t2;
u_int8_t ociv, nciv;
u_int32_t wait_us, actual_48k_rate, bytes;
sc = (struct sc_info *)arg;
ch = &sc->ch[1];
if (sc->use_intrhook)
config_intrhook_disestablish(&sc->intrhook);
/*
* Grab audio from input for fixed interval and compare how
* much we actually get with what we expect. Interval needs
* to be sufficiently short that no interrupts are
* generated.
*/
KASSERT(ch->regbase == ICH_REG_PI_BASE, ("wrong direction"));
bytes = sndbuf_getsize(ch->buffer) / 2;
ichchan_setblocksize(0, ch, bytes);
/*
* our data format is stereo, 16 bit so each sample is 4 bytes.
* assuming we get 48000 samples per second, we get 192000 bytes/sec.
* we're going to start recording with interrupts disabled and measure
* the time taken for one block to complete. we know the block size,
* we know the time in microseconds, we calculate the sample rate:
*
* actual_rate [bps] = bytes / (time [s] * 4)
* actual_rate [bps] = (bytes * 1000000) / (time [us] * 4)
* actual_rate [Hz] = (bytes * 250000) / time [us]
*/
/* prepare */
ociv = ich_rd(sc, ch->regbase + ICH_REG_X_CIV, 1);
nciv = ociv;
ich_wr(sc, ch->regbase + ICH_REG_X_BDBAR, (u_int32_t)(ch->desc_addr), 4);
/* start */
microtime(&t1);
ich_wr(sc, ch->regbase + ICH_REG_X_CR, ICH_X_CR_RPBM, 1);
/* wait */
while (nciv == ociv) {
microtime(&t2);
if (t2.tv_sec - t1.tv_sec > 1)
break;
nciv = ich_rd(sc, ch->regbase + ICH_REG_X_CIV, 1);
}
microtime(&t2);
/* stop */
ich_wr(sc, ch->regbase + ICH_REG_X_CR, 0, 1);
/* reset */
DELAY(100);
ich_wr(sc, ch->regbase + ICH_REG_X_CR, ICH_X_CR_RR, 1);
/* turn time delta into us */
wait_us = ((t2.tv_sec - t1.tv_sec) * 1000000) + t2.tv_usec - t1.tv_usec;
if (nciv == ociv) {
device_printf(sc->dev, "ac97 link rate calibration timed out after %d us\n", wait_us);
return;
}
actual_48k_rate = (bytes * 250000) / wait_us;
if (actual_48k_rate < 47500 || actual_48k_rate > 48500) {
sc->ac97rate = actual_48k_rate;
} else {
sc->ac97rate = 48000;
}
if (bootverbose || sc->ac97rate != 48000) {
device_printf(sc->dev, "measured ac97 link rate at %d Hz", actual_48k_rate);
if (sc->ac97rate != actual_48k_rate)
printf(", will use %d Hz", sc->ac97rate);
printf("\n");
}
return;
}
/* -------------------------------------------------------------------- */
/* Probe and attach the card */
static void
ich_setmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct sc_info *sc = (struct sc_info *)arg;
sc->desc_addr = segs->ds_addr;
return;
}
static int
ich_init(struct sc_info *sc)
{
u_int32_t stat;
int sz;
ich_wr(sc, ICH_REG_GLOB_CNT, ICH_GLOB_CTL_COLD, 4);
DELAY(600000);
stat = ich_rd(sc, ICH_REG_GLOB_STA, 4);
if ((stat & ICH_GLOB_STA_PCR) == 0) {
/* ICH4/ICH5 may fail when busmastering is enabled. Continue */
if ((pci_get_devid(sc->dev) != ICH4ID) &&
(pci_get_devid(sc->dev) != ICH5ID)) {
return ENXIO;
}
}
ich_wr(sc, ICH_REG_GLOB_CNT, ICH_GLOB_CTL_COLD | ICH_GLOB_CTL_PRES, 4);
if (ich_resetchan(sc, 0) || ich_resetchan(sc, 1))
return ENXIO;
if (sc->hasmic && ich_resetchan(sc, 2))
return ENXIO;
if (bus_dmamem_alloc(sc->dmat, (void **)&sc->dtbl, BUS_DMA_NOWAIT, &sc->dtmap))
return ENOSPC;
sz = sizeof(struct ich_desc) * ICH_DTBL_LENGTH * 3;
if (bus_dmamap_load(sc->dmat, sc->dtmap, sc->dtbl, sz, ich_setmap, sc, 0)) {
bus_dmamem_free(sc->dmat, (void **)&sc->dtbl, sc->dtmap);
return ENOSPC;
}
return 0;
}
static int
ich_pci_probe(device_t dev)
{
switch(pci_get_devid(dev)) {
case 0x71958086:
device_set_desc(dev, "Intel 443MX");
return 0;
case 0x24158086:
device_set_desc(dev, "Intel ICH (82801AA)");
return 0;
case 0x24258086:
device_set_desc(dev, "Intel ICH (82801AB)");
return 0;
case 0x24458086:
device_set_desc(dev, "Intel ICH2 (82801BA)");
return 0;
case 0x24858086:
device_set_desc(dev, "Intel ICH3 (82801CA)");
return 0;
case ICH4ID:
device_set_desc(dev, "Intel ICH4 (82801DB)");
return -1000; /* allow a better driver to override us */
case ICH5ID:
device_set_desc(dev, "Intel ICH5 (82801EB)");
return -1000; /* allow a better driver to override us */
case SIS7012ID:
device_set_desc(dev, "SiS 7012");
return 0;
case 0x01b110de:
device_set_desc(dev, "Nvidia nForce");
return 0;
case 0x006a10de:
device_set_desc(dev, "Nvidia nForce2");
return 0;
case 0x00da10de:
device_set_desc(dev, "Nvidia nForce3");
return 0;
case 0x74451022:
device_set_desc(dev, "AMD-768");
return 0;
case 0x746d1022:
device_set_desc(dev, "AMD-8111");
return 0;
default:
return ENXIO;
}
}
static int
ich_pci_attach(device_t dev)
{
u_int16_t extcaps;
struct sc_info *sc;
char status[SND_STATUSLEN];
if ((sc = malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT)) == NULL) {
device_printf(dev, "cannot allocate softc\n");
return ENXIO;
}
bzero(sc, sizeof(*sc));
sc->dev = dev;
/*
* The SiS 7012 register set isn't quite like the standard ich.
* There really should be a general "quirks" mechanism.
*/
if (pci_get_devid(dev) == SIS7012ID) {
sc->swap_reg = 1;
sc->sample_size = 1;
} else {
sc->swap_reg = 0;
sc->sample_size = 2;
}
/*
* By default, ich4 has NAMBAR and NABMBAR i/o spaces as
* read-only. Need to enable "legacy support", by poking into
* pci config space. The driver should use MMBAR and MBBAR,
* but doing so will mess things up here. ich4 has enough new
* features it warrants it's own driver.
*/
if (pci_get_devid(dev) == ICH4ID) {
pci_write_config(dev, PCIR_ICH_LEGACY, ICH_LEGACY_ENABLE, 1);
}
/*
* Enable bus master. On ich4/5 this may prevent the detection of
* the primary codec becoming ready in ich_init().
*/
pci_enable_busmaster(dev);
if (pci_get_devid(dev) == ICH5ID) {
sc->nambarid = PCIR_MMBAR;
sc->nabmbarid = PCIR_MBBAR;
sc->regtype = SYS_RES_MEMORY;
} else {
sc->nambarid = PCIR_NAMBAR;
sc->nabmbarid = PCIR_NABMBAR;
sc->regtype = SYS_RES_IOPORT;
}
sc->nambar = bus_alloc_resource_any(dev, sc->regtype,
&sc->nambarid, RF_ACTIVE);
sc->nabmbar = bus_alloc_resource_any(dev, sc->regtype,
&sc->nabmbarid, RF_ACTIVE);
if (!sc->nambar || !sc->nabmbar) {
device_printf(dev, "unable to map IO port space\n");
goto bad;
}
sc->nambart = rman_get_bustag(sc->nambar);
sc->nambarh = rman_get_bushandle(sc->nambar);
sc->nabmbart = rman_get_bustag(sc->nabmbar);
sc->nabmbarh = rman_get_bushandle(sc->nabmbar);
sc->bufsz = pcm_getbuffersize(dev, 4096, ICH_DEFAULT_BUFSZ, ICH_MAX_BUFSZ);
if (bus_dma_tag_create(NULL, 8, 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
NULL, NULL, sc->bufsz, 1, 0x3ffff, 0,
busdma_lock_mutex, &Giant, &sc->dmat) != 0) {
device_printf(dev, "unable to create dma tag\n");
goto bad;
}
sc->irqid = 0;
sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid,
RF_ACTIVE | RF_SHAREABLE);
if (!sc->irq || snd_setup_intr(dev, sc->irq, 0, ich_intr, sc, &sc->ih)) {
device_printf(dev, "unable to map interrupt\n");
goto bad;
}
if (ich_init(sc)) {
device_printf(dev, "unable to initialize the card\n");
goto bad;
}
sc->codec = AC97_CREATE(dev, sc, ich_ac97);
if (sc->codec == NULL)
goto bad;
mixer_init(dev, ac97_getmixerclass(), sc->codec);
/* check and set VRA function */
extcaps = ac97_getextcaps(sc->codec);
sc->hasvra = extcaps & AC97_EXTCAP_VRA;
sc->hasvrm = extcaps & AC97_EXTCAP_VRM;
sc->hasmic = ac97_getcaps(sc->codec) & AC97_CAP_MICCHANNEL;
ac97_setextmode(sc->codec, sc->hasvra | sc->hasvrm);
if (pcm_register(dev, sc, 1, sc->hasmic? 2 : 1))
goto bad;
pcm_addchan(dev, PCMDIR_PLAY, &ichchan_class, sc); /* play */
pcm_addchan(dev, PCMDIR_REC, &ichchan_class, sc); /* record */
if (sc->hasmic)
pcm_addchan(dev, PCMDIR_REC, &ichchan_class, sc); /* record mic */
snprintf(status, SND_STATUSLEN, "at io 0x%lx, 0x%lx irq %ld bufsz %u %s",
rman_get_start(sc->nambar), rman_get_start(sc->nabmbar), rman_get_start(sc->irq), sc->bufsz,PCM_KLDSTRING(snd_ich));
pcm_setstatus(dev, status);
ich_initsys(sc);
sc->intrhook.ich_func = ich_calibrate;
sc->intrhook.ich_arg = sc;
sc->use_intrhook = 1;
if (config_intrhook_establish(&sc->intrhook) != 0) {
device_printf(dev, "Cannot establish calibration hook, will calibrate now\n");
sc->use_intrhook = 0;
ich_calibrate(sc);
}
return 0;
bad:
if (sc->codec)
ac97_destroy(sc->codec);
if (sc->ih)
bus_teardown_intr(dev, sc->irq, sc->ih);
if (sc->irq)
bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq);
if (sc->nambar)
bus_release_resource(dev, sc->regtype,
sc->nambarid, sc->nambar);
if (sc->nabmbar)
bus_release_resource(dev, sc->regtype,
sc->nabmbarid, sc->nabmbar);
free(sc, M_DEVBUF);
return ENXIO;
}
static int
ich_pci_detach(device_t dev)
{
struct sc_info *sc;
int r;
r = pcm_unregister(dev);
if (r)
return r;
sc = pcm_getdevinfo(dev);
bus_teardown_intr(dev, sc->irq, sc->ih);
bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq);
bus_release_resource(dev, sc->regtype, sc->nambarid, sc->nambar);
bus_release_resource(dev, sc->regtype, sc->nabmbarid, sc->nabmbar);
bus_dma_tag_destroy(sc->dmat);
free(sc, M_DEVBUF);
return 0;
}
static void
ich_pci_codec_reset(struct sc_info *sc)
{
int i;
uint32_t control;
control = ich_rd(sc, ICH_REG_GLOB_CNT, 4);
control &= ~(ICH_GLOB_CTL_SHUT);
control |= (control & ICH_GLOB_CTL_COLD) ?
ICH_GLOB_CTL_WARM : ICH_GLOB_CTL_COLD;
ich_wr(sc, ICH_REG_GLOB_CNT, control, 4);
for (i = 500000; i; i--) {
if (ich_rd(sc, ICH_REG_GLOB_STA, 4) & ICH_GLOB_STA_PCR)
break; /* or ICH_SCR? */
DELAY(1);
}
if (i <= 0)
printf("%s: time out\n", __func__);
}
static int
ich_pci_suspend(device_t dev)
{
struct sc_info *sc;
int i;
sc = pcm_getdevinfo(dev);
for (i = 0 ; i < 3; i++) {
sc->ch[i].run_save = sc->ch[i].run;
if (sc->ch[i].run) {
ichchan_trigger(0, &sc->ch[i], PCMTRIG_ABORT);
}
}
return 0;
}
static int
ich_pci_resume(device_t dev)
{
struct sc_info *sc;
int i;
sc = pcm_getdevinfo(dev);
if (sc->regtype == SYS_RES_IOPORT)
pci_enable_io(dev, SYS_RES_IOPORT);
else
pci_enable_io(dev, SYS_RES_MEMORY);
pci_enable_busmaster(dev);
/* Reinit audio device */
if (ich_init(sc) == -1) {
device_printf(dev, "unable to reinitialize the card\n");
return ENXIO;
}
/* Reinit mixer */
ich_pci_codec_reset(sc);
ac97_setextmode(sc->codec, sc->hasvra | sc->hasvrm);
if (mixer_reinit(dev) == -1) {
device_printf(dev, "unable to reinitialize the mixer\n");
return ENXIO;
}
/* Re-start DMA engines */
for (i = 0 ; i < 3; i++) {
struct sc_chinfo *ch = &sc->ch[i];
if (sc->ch[i].run_save) {
ichchan_setblocksize(0, ch, ch->blksz);
ichchan_setspeed(0, ch, ch->spd);
ichchan_trigger(0, ch, PCMTRIG_START);
}
}
return 0;
}
static device_method_t ich_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ich_pci_probe),
DEVMETHOD(device_attach, ich_pci_attach),
DEVMETHOD(device_detach, ich_pci_detach),
DEVMETHOD(device_suspend, ich_pci_suspend),
DEVMETHOD(device_resume, ich_pci_resume),
{ 0, 0 }
};
static driver_t ich_driver = {
"pcm",
ich_methods,
PCM_SOFTC_SIZE,
};
DRIVER_MODULE(snd_ich, pci, ich_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_ich, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(snd_ich, 1);
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