| Current Path : /sys/dev/sound/isa/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/dev/sound/isa/sbc.c |
/*-
* Copyright (c) 1999 Seigo Tanimura
* 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.
*/
#ifdef HAVE_KERNEL_OPTION_HEADERS
#include "opt_snd.h"
#endif
#include <dev/sound/chip.h>
#include <dev/sound/pcm/sound.h>
#include <dev/sound/isa/sb.h>
#include <isa/isavar.h>
SND_DECLARE_FILE("$FreeBSD: release/9.1.0/sys/dev/sound/isa/sbc.c 229093 2011-12-31 14:12:12Z hselasky $");
#define IO_MAX 3
#define IRQ_MAX 1
#define DRQ_MAX 2
#define INTR_MAX 2
struct sbc_softc;
struct sbc_ihl {
driver_intr_t *intr[INTR_MAX];
void *intr_arg[INTR_MAX];
struct sbc_softc *parent;
};
/* Here is the parameter structure per a device. */
struct sbc_softc {
device_t dev; /* device */
device_t child_pcm, child_midi1, child_midi2;
int io_rid[IO_MAX]; /* io port rids */
struct resource *io[IO_MAX]; /* io port resources */
int io_alloced[IO_MAX]; /* io port alloc flag */
int irq_rid[IRQ_MAX]; /* irq rids */
struct resource *irq[IRQ_MAX]; /* irq resources */
int irq_alloced[IRQ_MAX]; /* irq alloc flag */
int drq_rid[DRQ_MAX]; /* drq rids */
struct resource *drq[DRQ_MAX]; /* drq resources */
int drq_alloced[DRQ_MAX]; /* drq alloc flag */
struct sbc_ihl ihl[IRQ_MAX];
void *ih[IRQ_MAX];
struct mtx *lock;
u_int32_t bd_ver;
};
static int sbc_probe(device_t dev);
static int sbc_attach(device_t dev);
static void sbc_intr(void *p);
static struct resource *sbc_alloc_resource(device_t bus, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags);
static int sbc_release_resource(device_t bus, device_t child, int type, int rid,
struct resource *r);
static int sbc_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags,
#if __FreeBSD_version >= 700031
driver_filter_t *filter,
#endif
driver_intr_t *intr,
void *arg, void **cookiep);
static int sbc_teardown_intr(device_t dev, device_t child, struct resource *irq,
void *cookie);
static int alloc_resource(struct sbc_softc *scp);
static int release_resource(struct sbc_softc *scp);
static devclass_t sbc_devclass;
static int io_range[3] = {0x10, 0x2, 0x4};
#ifdef PC98 /* I/O address table for PC98 */
static bus_addr_t pcm_iat[] = {
0x000, 0x100, 0x200, 0x300, 0x400, 0x500, 0x600, 0x700,
0x800, 0x900, 0xa00, 0xb00, 0xc00, 0xd00, 0xe00, 0xf00
};
static bus_addr_t midi_iat[] = {
0x000, 0x100
};
static bus_addr_t opl_iat[] = {
0x000, 0x100, 0x200, 0x300
};
static bus_addr_t *sb_iat[] = { pcm_iat, midi_iat, opl_iat };
#endif
static int sb_rd(struct resource *io, int reg);
static void sb_wr(struct resource *io, int reg, u_int8_t val);
static int sb_dspready(struct resource *io);
static int sb_cmd(struct resource *io, u_char val);
static u_int sb_get_byte(struct resource *io);
static void sb_setmixer(struct resource *io, u_int port, u_int value);
static void
sbc_lockinit(struct sbc_softc *scp)
{
scp->lock = snd_mtxcreate(device_get_nameunit(scp->dev),
"snd_sbc softc");
}
static void
sbc_lockdestroy(struct sbc_softc *scp)
{
snd_mtxfree(scp->lock);
}
void
sbc_lock(struct sbc_softc *scp)
{
snd_mtxlock(scp->lock);
}
void
sbc_lockassert(struct sbc_softc *scp)
{
snd_mtxassert(scp->lock);
}
void
sbc_unlock(struct sbc_softc *scp)
{
snd_mtxunlock(scp->lock);
}
static int
sb_rd(struct resource *io, int reg)
{
return bus_space_read_1(rman_get_bustag(io),
rman_get_bushandle(io),
reg);
}
static void
sb_wr(struct resource *io, int reg, u_int8_t val)
{
bus_space_write_1(rman_get_bustag(io),
rman_get_bushandle(io),
reg, val);
}
static int
sb_dspready(struct resource *io)
{
return ((sb_rd(io, SBDSP_STATUS) & 0x80) == 0);
}
static int
sb_dspwr(struct resource *io, u_char val)
{
int i;
for (i = 0; i < 1000; i++) {
if (sb_dspready(io)) {
sb_wr(io, SBDSP_CMD, val);
return 1;
}
if (i > 10) DELAY((i > 100)? 1000 : 10);
}
printf("sb_dspwr(0x%02x) timed out.\n", val);
return 0;
}
static int
sb_cmd(struct resource *io, u_char val)
{
return sb_dspwr(io, val);
}
static void
sb_setmixer(struct resource *io, u_int port, u_int value)
{
u_long flags;
flags = spltty();
sb_wr(io, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
DELAY(10);
sb_wr(io, SB_MIX_DATA, (u_char) (value & 0xff));
DELAY(10);
splx(flags);
}
static u_int
sb_get_byte(struct resource *io)
{
int i;
for (i = 1000; i > 0; i--) {
if (sb_rd(io, DSP_DATA_AVAIL) & 0x80)
return sb_rd(io, DSP_READ);
else
DELAY(20);
}
return 0xffff;
}
static int
sb_reset_dsp(struct resource *io)
{
sb_wr(io, SBDSP_RST, 3);
DELAY(100);
sb_wr(io, SBDSP_RST, 0);
return (sb_get_byte(io) == 0xAA)? 0 : ENXIO;
}
static int
sb_identify_board(struct resource *io)
{
int ver, essver, rev;
sb_cmd(io, DSP_CMD_GETVER); /* Get version */
ver = (sb_get_byte(io) << 8) | sb_get_byte(io);
if (ver < 0x100 || ver > 0x4ff) return 0;
if (ver == 0x0301) {
/* Try to detect ESS chips. */
sb_cmd(io, DSP_CMD_GETID); /* Return ident. bytes. */
essver = (sb_get_byte(io) << 8) | sb_get_byte(io);
rev = essver & 0x000f;
essver &= 0xfff0;
if (essver == 0x4880) ver |= 0x1000;
else if (essver == 0x6880) ver = 0x0500 | rev;
}
return ver;
}
static struct isa_pnp_id sbc_ids[] = {
{0x01008c0e, "Creative ViBRA16C"}, /* CTL0001 */
{0x31008c0e, "Creative SB16/SB32"}, /* CTL0031 */
{0x41008c0e, "Creative SB16/SB32"}, /* CTL0041 */
{0x42008c0e, "Creative SB AWE64"}, /* CTL0042 */
{0x43008c0e, "Creative ViBRA16X"}, /* CTL0043 */
{0x44008c0e, "Creative SB AWE64 Gold"}, /* CTL0044 */
{0x45008c0e, "Creative SB AWE64"}, /* CTL0045 */
{0x46008c0e, "Creative SB AWE64"}, /* CTL0046 */
{0x01000000, "Avance Logic ALS100+"}, /* @@@0001 - ViBRA16X clone */
{0x01100000, "Avance Asound 110"}, /* @@@1001 */
{0x01200000, "Avance Logic ALS120"}, /* @@@2001 - ViBRA16X clone */
{0x81167316, "ESS ES1681"}, /* ESS1681 */
{0x02017316, "ESS ES1688"}, /* ESS1688 */
{0x68097316, "ESS ES1688"}, /* ESS1688 */
{0x68187316, "ESS ES1868"}, /* ESS1868 */
{0x03007316, "ESS ES1869"}, /* ESS1869 */
{0x69187316, "ESS ES1869"}, /* ESS1869 */
{0xabb0110e, "ESS ES1869 (Compaq OEM)"}, /* CPQb0ab */
{0xacb0110e, "ESS ES1869 (Compaq OEM)"}, /* CPQb0ac */
{0x78187316, "ESS ES1878"}, /* ESS1878 */
{0x79187316, "ESS ES1879"}, /* ESS1879 */
{0x88187316, "ESS ES1888"}, /* ESS1888 */
{0x07017316, "ESS ES1888 (DEC OEM)"}, /* ESS0107 */
{0x06017316, "ESS ES1888 (Dell OEM)"}, /* ESS0106 */
{0}
};
static int
sbc_probe(device_t dev)
{
char *s = NULL;
u_int32_t lid, vid;
lid = isa_get_logicalid(dev);
vid = isa_get_vendorid(dev);
if (lid) {
if (lid == 0x01000000 && vid != 0x01009305) /* ALS0001 */
return ENXIO;
/* Check pnp ids */
return ISA_PNP_PROBE(device_get_parent(dev), dev, sbc_ids);
} else {
int rid = 0, ver;
struct resource *io;
#ifdef PC98
io = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
pcm_iat, 16, RF_ACTIVE);
#else
io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0, ~0, 16, RF_ACTIVE);
#endif
if (!io) goto bad;
#ifdef PC98
isa_load_resourcev(io, pcm_iat, 16);
#endif
if (sb_reset_dsp(io)) goto bad2;
ver = sb_identify_board(io);
if (ver == 0) goto bad2;
switch ((ver & 0x00000f00) >> 8) {
case 1:
device_set_desc(dev, "SoundBlaster 1.0 (not supported)");
s = NULL;
break;
case 2:
s = "SoundBlaster 2.0";
break;
case 3:
s = (ver & 0x0000f000)? "ESS 488" : "SoundBlaster Pro";
break;
case 4:
s = "SoundBlaster 16";
break;
case 5:
s = (ver & 0x00000008)? "ESS 688" : "ESS 1688";
break;
}
if (s) device_set_desc(dev, s);
bad2: bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
bad: return s? 0 : ENXIO;
}
}
static int
sbc_attach(device_t dev)
{
char *err = NULL;
struct sbc_softc *scp;
struct sndcard_func *func;
u_int32_t logical_id = isa_get_logicalid(dev);
int flags = device_get_flags(dev);
int f, dh, dl, x, irq, i;
if (!logical_id && (flags & DV_F_DUAL_DMA)) {
bus_set_resource(dev, SYS_RES_DRQ, 1,
flags & DV_F_DRQ_MASK, 1);
}
scp = device_get_softc(dev);
bzero(scp, sizeof(*scp));
scp->dev = dev;
sbc_lockinit(scp);
err = "alloc_resource";
if (alloc_resource(scp)) goto bad;
err = "sb_reset_dsp";
if (sb_reset_dsp(scp->io[0])) goto bad;
err = "sb_identify_board";
scp->bd_ver = sb_identify_board(scp->io[0]) & 0x00000fff;
if (scp->bd_ver == 0) goto bad;
f = 0;
if (logical_id == 0x01200000 && scp->bd_ver < 0x0400) scp->bd_ver = 0x0499;
switch ((scp->bd_ver & 0x0f00) >> 8) {
case 1: /* old sound blaster has nothing... */
break;
case 2:
f |= BD_F_DUP_MIDI;
if (scp->bd_ver > 0x200) f |= BD_F_MIX_CT1335;
break;
case 5:
f |= BD_F_ESS;
scp->bd_ver = 0x0301;
case 3:
f |= BD_F_DUP_MIDI | BD_F_MIX_CT1345;
break;
case 4:
f |= BD_F_SB16 | BD_F_MIX_CT1745;
if (scp->drq[0]) dl = rman_get_start(scp->drq[0]); else dl = -1;
if (scp->drq[1]) dh = rman_get_start(scp->drq[1]); else dh = dl;
if (!logical_id && (dh < dl)) {
struct resource *r;
r = scp->drq[0];
scp->drq[0] = scp->drq[1];
scp->drq[1] = r;
dl = rman_get_start(scp->drq[0]);
dh = rman_get_start(scp->drq[1]);
}
/* soft irq/dma configuration */
x = -1;
irq = rman_get_start(scp->irq[0]);
#ifdef PC98
/* SB16 in PC98 use different IRQ table */
if (irq == 3) x = 1;
else if (irq == 5) x = 8;
else if (irq == 10) x = 2;
else if (irq == 12) x = 4;
if (x == -1) {
err = "bad irq (3/5/10/12 valid)";
goto bad;
}
else sb_setmixer(scp->io[0], IRQ_NR, x);
/* SB16 in PC98 use different dma setting */
sb_setmixer(scp->io[0], DMA_NR, dh == 0 ? 1 : 2);
#else
if (irq == 5) x = 2;
else if (irq == 7) x = 4;
else if (irq == 9) x = 1;
else if (irq == 10) x = 8;
if (x == -1) {
err = "bad irq (5/7/9/10 valid)";
goto bad;
}
else sb_setmixer(scp->io[0], IRQ_NR, x);
sb_setmixer(scp->io[0], DMA_NR, (1 << dh) | (1 << dl));
#endif
if (bootverbose) {
device_printf(dev, "setting card to irq %d, drq %d", irq, dl);
if (dl != dh) printf(", %d", dh);
printf("\n");
}
break;
}
switch (logical_id) {
case 0x43008c0e: /* CTL0043 */
case 0x01200000:
case 0x01000000:
f |= BD_F_SB16X;
break;
}
scp->bd_ver |= f << 16;
err = "setup_intr";
for (i = 0; i < IRQ_MAX; i++) {
scp->ihl[i].parent = scp;
if (snd_setup_intr(dev, scp->irq[i], 0, sbc_intr, &scp->ihl[i], &scp->ih[i]))
goto bad;
}
/* PCM Audio */
func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
if (func == NULL) goto bad;
func->func = SCF_PCM;
scp->child_pcm = device_add_child(dev, "pcm", -1);
device_set_ivars(scp->child_pcm, func);
/* Midi Interface */
func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
if (func == NULL) goto bad;
func->func = SCF_MIDI;
scp->child_midi1 = device_add_child(dev, "midi", -1);
device_set_ivars(scp->child_midi1, func);
/* OPL FM Synthesizer */
func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
if (func == NULL) goto bad;
func->func = SCF_SYNTH;
scp->child_midi2 = device_add_child(dev, "midi", -1);
device_set_ivars(scp->child_midi2, func);
/* probe/attach kids */
bus_generic_attach(dev);
return (0);
bad: if (err) device_printf(dev, "%s\n", err);
release_resource(scp);
return (ENXIO);
}
static int
sbc_detach(device_t dev)
{
struct sbc_softc *scp = device_get_softc(dev);
sbc_lock(scp);
device_delete_child(dev, scp->child_midi2);
device_delete_child(dev, scp->child_midi1);
device_delete_child(dev, scp->child_pcm);
release_resource(scp);
sbc_lockdestroy(scp);
return bus_generic_detach(dev);
}
static void
sbc_intr(void *p)
{
struct sbc_ihl *ihl = p;
int i;
/* sbc_lock(ihl->parent); */
i = 0;
while (i < INTR_MAX) {
if (ihl->intr[i] != NULL) ihl->intr[i](ihl->intr_arg[i]);
i++;
}
/* sbc_unlock(ihl->parent); */
}
static int
sbc_setup_intr(device_t dev, device_t child, struct resource *irq, int flags,
#if __FreeBSD_version >= 700031
driver_filter_t *filter,
#endif
driver_intr_t *intr,
void *arg, void **cookiep)
{
struct sbc_softc *scp = device_get_softc(dev);
struct sbc_ihl *ihl = NULL;
int i, ret;
#if __FreeBSD_version >= 700031
if (filter != NULL) {
printf("sbc.c: we cannot use a filter here\n");
return (EINVAL);
}
#endif
sbc_lock(scp);
i = 0;
while (i < IRQ_MAX) {
if (irq == scp->irq[i]) ihl = &scp->ihl[i];
i++;
}
ret = 0;
if (ihl == NULL) ret = EINVAL;
i = 0;
while ((ret == 0) && (i < INTR_MAX)) {
if (ihl->intr[i] == NULL) {
ihl->intr[i] = intr;
ihl->intr_arg[i] = arg;
*cookiep = &ihl->intr[i];
ret = -1;
} else i++;
}
sbc_unlock(scp);
return (ret > 0)? EINVAL : 0;
}
static int
sbc_teardown_intr(device_t dev, device_t child, struct resource *irq,
void *cookie)
{
struct sbc_softc *scp = device_get_softc(dev);
struct sbc_ihl *ihl = NULL;
int i, ret;
sbc_lock(scp);
i = 0;
while (i < IRQ_MAX) {
if (irq == scp->irq[i]) ihl = &scp->ihl[i];
i++;
}
ret = 0;
if (ihl == NULL) ret = EINVAL;
i = 0;
while ((ret == 0) && (i < INTR_MAX)) {
if (cookie == &ihl->intr[i]) {
ihl->intr[i] = NULL;
ihl->intr_arg[i] = NULL;
return 0;
} else i++;
}
sbc_unlock(scp);
return (ret > 0)? EINVAL : 0;
}
static struct resource *
sbc_alloc_resource(device_t bus, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
{
struct sbc_softc *scp;
int *alloced, rid_max, alloced_max;
struct resource **res;
#ifdef PC98
int i;
#endif
scp = device_get_softc(bus);
switch (type) {
case SYS_RES_IOPORT:
alloced = scp->io_alloced;
res = scp->io;
#ifdef PC98
rid_max = 0;
for (i = 0; i < IO_MAX; i++)
rid_max += io_range[i];
#else
rid_max = IO_MAX - 1;
#endif
alloced_max = 1;
break;
case SYS_RES_DRQ:
alloced = scp->drq_alloced;
res = scp->drq;
rid_max = DRQ_MAX - 1;
alloced_max = 1;
break;
case SYS_RES_IRQ:
alloced = scp->irq_alloced;
res = scp->irq;
rid_max = IRQ_MAX - 1;
alloced_max = INTR_MAX; /* pcm and mpu may share the irq. */
break;
default:
return (NULL);
}
if (*rid > rid_max || alloced[*rid] == alloced_max)
return (NULL);
alloced[*rid]++;
return (res[*rid]);
}
static int
sbc_release_resource(device_t bus, device_t child, int type, int rid,
struct resource *r)
{
struct sbc_softc *scp;
int *alloced, rid_max;
scp = device_get_softc(bus);
switch (type) {
case SYS_RES_IOPORT:
alloced = scp->io_alloced;
rid_max = IO_MAX - 1;
break;
case SYS_RES_DRQ:
alloced = scp->drq_alloced;
rid_max = DRQ_MAX - 1;
break;
case SYS_RES_IRQ:
alloced = scp->irq_alloced;
rid_max = IRQ_MAX - 1;
break;
default:
return (1);
}
if (rid > rid_max || alloced[rid] == 0)
return (1);
alloced[rid]--;
return (0);
}
static int
sbc_read_ivar(device_t bus, device_t dev, int index, uintptr_t * result)
{
struct sbc_softc *scp = device_get_softc(bus);
struct sndcard_func *func = device_get_ivars(dev);
switch (index) {
case 0:
*result = func->func;
break;
case 1:
*result = scp->bd_ver;
break;
default:
return ENOENT;
}
return 0;
}
static int
sbc_write_ivar(device_t bus, device_t dev,
int index, uintptr_t value)
{
switch (index) {
case 0:
case 1:
return EINVAL;
default:
return (ENOENT);
}
}
static int
alloc_resource(struct sbc_softc *scp)
{
int i;
for (i = 0 ; i < IO_MAX ; i++) {
if (scp->io[i] == NULL) {
#ifdef PC98
scp->io_rid[i] = i > 0 ?
scp->io_rid[i - 1] + io_range[i - 1] : 0;
scp->io[i] = isa_alloc_resourcev(scp->dev,
SYS_RES_IOPORT,
&scp->io_rid[i],
sb_iat[i],
io_range[i],
RF_ACTIVE);
if (scp->io[i] != NULL)
isa_load_resourcev(scp->io[i], sb_iat[i],
io_range[i]);
#else
scp->io_rid[i] = i;
scp->io[i] = bus_alloc_resource(scp->dev, SYS_RES_IOPORT, &scp->io_rid[i],
0, ~0, io_range[i], RF_ACTIVE);
#endif
if (i == 0 && scp->io[i] == NULL)
return (1);
scp->io_alloced[i] = 0;
}
}
for (i = 0 ; i < DRQ_MAX ; i++) {
if (scp->drq[i] == NULL) {
scp->drq_rid[i] = i;
scp->drq[i] = bus_alloc_resource_any(scp->dev,
SYS_RES_DRQ,
&scp->drq_rid[i],
RF_ACTIVE);
if (i == 0 && scp->drq[i] == NULL)
return (1);
scp->drq_alloced[i] = 0;
}
}
for (i = 0 ; i < IRQ_MAX ; i++) {
if (scp->irq[i] == NULL) {
scp->irq_rid[i] = i;
scp->irq[i] = bus_alloc_resource_any(scp->dev,
SYS_RES_IRQ,
&scp->irq_rid[i],
RF_ACTIVE);
if (i == 0 && scp->irq[i] == NULL)
return (1);
scp->irq_alloced[i] = 0;
}
}
return (0);
}
static int
release_resource(struct sbc_softc *scp)
{
int i;
for (i = 0 ; i < IO_MAX ; i++) {
if (scp->io[i] != NULL) {
bus_release_resource(scp->dev, SYS_RES_IOPORT, scp->io_rid[i], scp->io[i]);
scp->io[i] = NULL;
}
}
for (i = 0 ; i < DRQ_MAX ; i++) {
if (scp->drq[i] != NULL) {
bus_release_resource(scp->dev, SYS_RES_DRQ, scp->drq_rid[i], scp->drq[i]);
scp->drq[i] = NULL;
}
}
for (i = 0 ; i < IRQ_MAX ; i++) {
if (scp->irq[i] != NULL) {
if (scp->ih[i] != NULL)
bus_teardown_intr(scp->dev, scp->irq[i], scp->ih[i]);
scp->ih[i] = NULL;
bus_release_resource(scp->dev, SYS_RES_IRQ, scp->irq_rid[i], scp->irq[i]);
scp->irq[i] = NULL;
}
}
return (0);
}
static device_method_t sbc_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sbc_probe),
DEVMETHOD(device_attach, sbc_attach),
DEVMETHOD(device_detach, sbc_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */
DEVMETHOD(bus_read_ivar, sbc_read_ivar),
DEVMETHOD(bus_write_ivar, sbc_write_ivar),
DEVMETHOD(bus_alloc_resource, sbc_alloc_resource),
DEVMETHOD(bus_release_resource, sbc_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_setup_intr, sbc_setup_intr),
DEVMETHOD(bus_teardown_intr, sbc_teardown_intr),
DEVMETHOD_END
};
static driver_t sbc_driver = {
"sbc",
sbc_methods,
sizeof(struct sbc_softc),
};
/* sbc can be attached to an isa bus. */
DRIVER_MODULE(snd_sbc, isa, sbc_driver, sbc_devclass, 0, 0);
DRIVER_MODULE(snd_sbc, acpi, sbc_driver, sbc_devclass, 0, 0);
MODULE_DEPEND(snd_sbc, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(snd_sbc, 1);