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-rw-r--r--sys/dev/sound/isa/sb8.c787
1 files changed, 787 insertions, 0 deletions
diff --git a/sys/dev/sound/isa/sb8.c b/sys/dev/sound/isa/sb8.c
new file mode 100644
index 0000000..acf6e91
--- /dev/null
+++ b/sys/dev/sound/isa/sb8.c
@@ -0,0 +1,787 @@
+/*
+ * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
+ * Copyright 1997,1998 Luigi Rizzo.
+ *
+ * Derived from files in the Voxware 3.5 distribution,
+ * Copyright by Hannu Savolainen 1994, under the same copyright
+ * conditions.
+ * 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.
+ */
+
+#include <dev/sound/pcm/sound.h>
+
+#include <dev/sound/isa/sb.h>
+#include <dev/sound/chip.h>
+
+#include <isa/isavar.h>
+
+#include "mixer_if.h"
+
+SND_DECLARE_FILE("$FreeBSD$");
+
+#define SB_DEFAULT_BUFSZ 4096
+
+static u_int32_t sb_fmt[] = {
+ AFMT_U8,
+ 0
+};
+static struct pcmchan_caps sb200_playcaps = {4000, 23000, sb_fmt, 0};
+static struct pcmchan_caps sb200_reccaps = {4000, 13000, sb_fmt, 0};
+static struct pcmchan_caps sb201_playcaps = {4000, 44100, sb_fmt, 0};
+static struct pcmchan_caps sb201_reccaps = {4000, 15000, sb_fmt, 0};
+
+static u_int32_t sbpro_fmt[] = {
+ AFMT_U8,
+ AFMT_STEREO | AFMT_U8,
+ 0
+};
+static struct pcmchan_caps sbpro_playcaps = {4000, 44100, sbpro_fmt, 0};
+static struct pcmchan_caps sbpro_reccaps = {4000, 44100, sbpro_fmt, 0};
+
+struct sb_info;
+
+struct sb_chinfo {
+ struct sb_info *parent;
+ struct pcm_channel *channel;
+ struct snd_dbuf *buffer;
+ int dir;
+ u_int32_t fmt, spd, blksz;
+};
+
+struct sb_info {
+ device_t parent_dev;
+ struct resource *io_base; /* I/O address for the board */
+ struct resource *irq;
+ struct resource *drq;
+ void *ih;
+ bus_dma_tag_t parent_dmat;
+
+ unsigned int bufsize;
+ int bd_id;
+ u_long bd_flags; /* board-specific flags */
+ struct sb_chinfo pch, rch;
+};
+
+static int sb_rd(struct sb_info *sb, int reg);
+static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
+static int sb_dspready(struct sb_info *sb);
+static int sb_cmd(struct sb_info *sb, u_char val);
+static int sb_cmd1(struct sb_info *sb, u_char cmd, int val);
+static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
+static u_int sb_get_byte(struct sb_info *sb);
+static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
+static int sb_getmixer(struct sb_info *sb, u_int port);
+static int sb_reset_dsp(struct sb_info *sb);
+
+static void sb_intr(void *arg);
+static int sb_speed(struct sb_chinfo *ch);
+static int sb_start(struct sb_chinfo *ch);
+static int sb_stop(struct sb_chinfo *ch);
+
+/*
+ * Common code for the midi and pcm functions
+ *
+ * sb_cmd write a single byte to the CMD port.
+ * sb_cmd1 write a CMD + 1 byte arg
+ * sb_cmd2 write a CMD + 2 byte arg
+ * sb_get_byte returns a single byte from the DSP data port
+ */
+
+static void
+sb_lock(struct sb_info *sb) {
+
+ sbc_lock(device_get_softc(sb->parent_dev));
+}
+
+static void
+sb_unlock(struct sb_info *sb) {
+
+ sbc_unlock(device_get_softc(sb->parent_dev));
+}
+
+static int
+port_rd(struct resource *port, int off)
+{
+ return bus_space_read_1(rman_get_bustag(port), rman_get_bushandle(port), off);
+}
+
+static void
+port_wr(struct resource *port, int off, u_int8_t data)
+{
+ bus_space_write_1(rman_get_bustag(port), rman_get_bushandle(port), off, data);
+}
+
+static int
+sb_rd(struct sb_info *sb, int reg)
+{
+ return port_rd(sb->io_base, reg);
+}
+
+static void
+sb_wr(struct sb_info *sb, int reg, u_int8_t val)
+{
+ port_wr(sb->io_base, reg, val);
+}
+
+static int
+sb_dspready(struct sb_info *sb)
+{
+ return ((sb_rd(sb, SBDSP_STATUS) & 0x80) == 0);
+}
+
+static int
+sb_dspwr(struct sb_info *sb, u_char val)
+{
+ int i;
+
+ for (i = 0; i < 1000; i++) {
+ if (sb_dspready(sb)) {
+ sb_wr(sb, 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 sb_info *sb, u_char val)
+{
+#if 0
+ printf("sb_cmd: %x\n", val);
+#endif
+ return sb_dspwr(sb, val);
+}
+
+static int
+sb_cmd1(struct sb_info *sb, u_char cmd, int val)
+{
+#if 0
+ printf("sb_cmd1: %x, %x\n", cmd, val);
+#endif
+ if (sb_dspwr(sb, cmd)) {
+ return sb_dspwr(sb, val & 0xff);
+ } else return 0;
+}
+
+static int
+sb_cmd2(struct sb_info *sb, u_char cmd, int val)
+{
+#if 0
+ printf("sb_cmd2: %x, %x\n", cmd, val);
+#endif
+ if (sb_dspwr(sb, cmd)) {
+ return sb_dspwr(sb, val & 0xff) &&
+ sb_dspwr(sb, (val >> 8) & 0xff);
+ } else return 0;
+}
+
+/*
+ * in the SB, there is a set of indirect "mixer" registers with
+ * address at offset 4, data at offset 5
+ *
+ * we don't need to interlock these, the mixer lock will suffice.
+ */
+static void
+sb_setmixer(struct sb_info *sb, u_int port, u_int value)
+{
+ sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
+ DELAY(10);
+ sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
+ DELAY(10);
+}
+
+static int
+sb_getmixer(struct sb_info *sb, u_int port)
+{
+ int val;
+
+ sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
+ DELAY(10);
+ val = sb_rd(sb, SB_MIX_DATA);
+ DELAY(10);
+
+ return val;
+}
+
+static u_int
+sb_get_byte(struct sb_info *sb)
+{
+ int i;
+
+ for (i = 1000; i > 0; i--) {
+ if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
+ return sb_rd(sb, DSP_READ);
+ else
+ DELAY(20);
+ }
+ return 0xffff;
+}
+
+static int
+sb_reset_dsp(struct sb_info *sb)
+{
+ sb_wr(sb, SBDSP_RST, 3);
+ DELAY(100);
+ sb_wr(sb, SBDSP_RST, 0);
+ if (sb_get_byte(sb) != 0xAA) {
+ DEB(printf("sb_reset_dsp 0x%lx failed\n",
+ rman_get_start(sb->io_base)));
+ return ENXIO; /* Sorry */
+ }
+ return 0;
+}
+
+static void
+sb_release_resources(struct sb_info *sb, device_t dev)
+{
+ if (sb->irq) {
+ if (sb->ih)
+ bus_teardown_intr(dev, sb->irq, sb->ih);
+ bus_release_resource(dev, SYS_RES_IRQ, 0, sb->irq);
+ sb->irq = 0;
+ }
+ if (sb->drq) {
+ isa_dma_release(rman_get_start(sb->drq));
+ bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq);
+ sb->drq = 0;
+ }
+ if (sb->io_base) {
+ bus_release_resource(dev, SYS_RES_IOPORT, 0, sb->io_base);
+ sb->io_base = 0;
+ }
+ if (sb->parent_dmat) {
+ bus_dma_tag_destroy(sb->parent_dmat);
+ sb->parent_dmat = 0;
+ }
+ free(sb, M_DEVBUF);
+}
+
+static int
+sb_alloc_resources(struct sb_info *sb, device_t dev)
+{
+ int rid;
+
+ rid = 0;
+ if (!sb->io_base)
+ sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
+ rid = 0;
+ if (!sb->irq)
+ sb->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
+ rid = 0;
+ if (!sb->drq)
+ sb->drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 0, ~0, 1, RF_ACTIVE);
+
+ if (sb->io_base && sb->drq && sb->irq) {
+ isa_dma_acquire(rman_get_start(sb->drq));
+ isa_dmainit(rman_get_start(sb->drq), sb->bufsize);
+
+ return 0;
+ } else return ENXIO;
+}
+
+/************************************************************/
+
+static int
+sbpromix_init(struct snd_mixer *m)
+{
+ struct sb_info *sb = mix_getdevinfo(m);
+
+ mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
+ SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME);
+
+ mix_setrecdevs(m, SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD);
+
+ sb_setmixer(sb, 0, 1); /* reset mixer */
+
+ return 0;
+}
+
+static int
+sbpromix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
+{
+ struct sb_info *sb = mix_getdevinfo(m);
+ int reg, max;
+ u_char val;
+
+ max = 7;
+ switch (dev) {
+ case SOUND_MIXER_PCM:
+ reg = 0x04;
+ break;
+
+ case SOUND_MIXER_MIC:
+ reg = 0x0a;
+ max = 3;
+ break;
+
+ case SOUND_MIXER_VOLUME:
+ reg = 0x22;
+ break;
+
+ case SOUND_MIXER_SYNTH:
+ reg = 0x26;
+ break;
+
+ case SOUND_MIXER_CD:
+ reg = 0x28;
+ break;
+
+ case SOUND_MIXER_LINE:
+ reg = 0x2e;
+ break;
+
+ default:
+ return -1;
+ }
+
+ left = (left * max) / 100;
+ right = (dev == SOUND_MIXER_MIC)? left : ((right * max) / 100);
+
+ val = (dev == SOUND_MIXER_MIC)? (left << 1) : (left << 5 | right << 1);
+ sb_setmixer(sb, reg, val);
+
+ left = (left * 100) / max;
+ right = (right * 100) / max;
+
+ return left | (right << 8);
+}
+
+static int
+sbpromix_setrecsrc(struct snd_mixer *m, u_int32_t src)
+{
+ struct sb_info *sb = mix_getdevinfo(m);
+ u_char recdev;
+
+ if (src == SOUND_MASK_LINE)
+ recdev = 0x06;
+ else if (src == SOUND_MASK_CD)
+ recdev = 0x02;
+ else { /* default: mic */
+ src = SOUND_MASK_MIC;
+ recdev = 0;
+ }
+ sb_setmixer(sb, RECORD_SRC, recdev | (sb_getmixer(sb, RECORD_SRC) & ~0x07));
+
+ return src;
+}
+
+static kobj_method_t sbpromix_mixer_methods[] = {
+ KOBJMETHOD(mixer_init, sbpromix_init),
+ KOBJMETHOD(mixer_set, sbpromix_set),
+ KOBJMETHOD(mixer_setrecsrc, sbpromix_setrecsrc),
+ { 0, 0 }
+};
+MIXER_DECLARE(sbpromix_mixer);
+
+/************************************************************/
+
+static int
+sbmix_init(struct snd_mixer *m)
+{
+ struct sb_info *sb = mix_getdevinfo(m);
+
+ mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_CD | SOUND_MASK_VOLUME);
+
+ mix_setrecdevs(m, 0);
+
+ sb_setmixer(sb, 0, 1); /* reset mixer */
+
+ return 0;
+}
+
+static int
+sbmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
+{
+ struct sb_info *sb = mix_getdevinfo(m);
+ int reg, max;
+
+ max = 7;
+ switch (dev) {
+ case SOUND_MIXER_VOLUME:
+ reg = 0x2;
+ break;
+
+ case SOUND_MIXER_SYNTH:
+ reg = 0x6;
+ break;
+
+ case SOUND_MIXER_CD:
+ reg = 0x8;
+ break;
+
+ case SOUND_MIXER_PCM:
+ reg = 0x0a;
+ max = 3;
+ break;
+
+ default:
+ return -1;
+ }
+
+ left = (left * max) / 100;
+
+ sb_setmixer(sb, reg, left << 1);
+
+ left = (left * 100) / max;
+
+ return left | (left << 8);
+}
+
+static int
+sbmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
+{
+ return 0;
+}
+
+static kobj_method_t sbmix_mixer_methods[] = {
+ KOBJMETHOD(mixer_init, sbmix_init),
+ KOBJMETHOD(mixer_set, sbmix_set),
+ KOBJMETHOD(mixer_setrecsrc, sbmix_setrecsrc),
+ { 0, 0 }
+};
+MIXER_DECLARE(sbmix_mixer);
+
+/************************************************************/
+
+static void
+sb_intr(void *arg)
+{
+ struct sb_info *sb = (struct sb_info *)arg;
+
+ sb_lock(sb);
+ if (sndbuf_runsz(sb->pch.buffer) > 0)
+ chn_intr(sb->pch.channel);
+
+ if (sndbuf_runsz(sb->rch.buffer) > 0)
+ chn_intr(sb->rch.channel);
+
+ sb_rd(sb, DSP_DATA_AVAIL); /* int ack */
+ sb_unlock(sb);
+}
+
+static int
+sb_speed(struct sb_chinfo *ch)
+{
+ struct sb_info *sb = ch->parent;
+ int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
+ int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
+ int speed, tmp, thresh, max;
+ u_char tconst;
+
+ if (sb->bd_id >= 0x300) {
+ thresh = stereo? 11025 : 23000;
+ max = stereo? 22050 : 44100;
+ } else if (sb->bd_id > 0x200) {
+ thresh = play? 23000 : 13000;
+ max = play? 44100 : 15000;
+ } else {
+ thresh = 999999;
+ max = play? 23000 : 13000;
+ }
+
+ speed = ch->spd;
+ if (speed > max)
+ speed = max;
+
+ sb_lock(sb);
+ sb->bd_flags &= ~BD_F_HISPEED;
+ if (speed > thresh)
+ sb->bd_flags |= BD_F_HISPEED;
+
+ tmp = 65536 - (256000000 / (speed << stereo));
+ tconst = tmp >> 8;
+
+ sb_cmd1(sb, 0x40, tconst); /* set time constant */
+
+ speed = (256000000 / (65536 - tmp)) >> stereo;
+
+ ch->spd = speed;
+ sb_unlock(sb);
+ return speed;
+}
+
+static int
+sb_start(struct sb_chinfo *ch)
+{
+ struct sb_info *sb = ch->parent;
+ int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
+ int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
+ int l = ch->blksz;
+ u_char i;
+
+ l--;
+
+ sb_lock(sb);
+ if (play)
+ sb_cmd(sb, DSP_CMD_SPKON);
+
+ if (sb->bd_flags & BD_F_HISPEED)
+ i = play? 0x90 : 0x98;
+ else
+ i = play? 0x1c : 0x2c;
+
+ sb_setmixer(sb, 0x0e, stereo? 2 : 0);
+ sb_cmd2(sb, 0x48, l);
+ sb_cmd(sb, i);
+
+ sb->bd_flags |= BD_F_DMARUN;
+ sb_unlock(sb);
+ return 0;
+}
+
+static int
+sb_stop(struct sb_chinfo *ch)
+{
+ struct sb_info *sb = ch->parent;
+ int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
+
+ sb_lock(sb);
+ if (sb->bd_flags & BD_F_HISPEED)
+ sb_reset_dsp(sb);
+ else
+ sb_cmd(sb, DSP_CMD_DMAEXIT_8);
+
+ if (play)
+ sb_cmd(sb, DSP_CMD_SPKOFF); /* speaker off */
+ sb_unlock(sb);
+ sb->bd_flags &= ~BD_F_DMARUN;
+ return 0;
+}
+
+/* channel interface */
+static void *
+sbchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
+{
+ struct sb_info *sb = devinfo;
+ struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
+
+ ch->parent = sb;
+ ch->channel = c;
+ ch->dir = dir;
+ ch->buffer = b;
+ if (sndbuf_alloc(ch->buffer, sb->parent_dmat, sb->bufsize) == -1)
+ return NULL;
+ sndbuf_dmasetup(ch->buffer, sb->drq);
+ return ch;
+}
+
+static int
+sbchan_setformat(kobj_t obj, void *data, u_int32_t format)
+{
+ struct sb_chinfo *ch = data;
+
+ ch->fmt = format;
+ return 0;
+}
+
+static int
+sbchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
+{
+ struct sb_chinfo *ch = data;
+
+ ch->spd = speed;
+ return sb_speed(ch);
+}
+
+static int
+sbchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
+{
+ struct sb_chinfo *ch = data;
+
+ ch->blksz = blocksize;
+ return ch->blksz;
+}
+
+static int
+sbchan_trigger(kobj_t obj, void *data, int go)
+{
+ struct sb_chinfo *ch = data;
+
+ if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
+ return 0;
+
+ sndbuf_dma(ch->buffer, go);
+ if (go == PCMTRIG_START)
+ sb_start(ch);
+ else
+ sb_stop(ch);
+ return 0;
+}
+
+static int
+sbchan_getptr(kobj_t obj, void *data)
+{
+ struct sb_chinfo *ch = data;
+
+ return sndbuf_dmaptr(ch->buffer);
+}
+
+static struct pcmchan_caps *
+sbchan_getcaps(kobj_t obj, void *data)
+{
+ struct sb_chinfo *ch = data;
+ int p = (ch->dir == PCMDIR_PLAY)? 1 : 0;
+
+ if (ch->parent->bd_id == 0x200)
+ return p? &sb200_playcaps : &sb200_reccaps;
+ if (ch->parent->bd_id < 0x300)
+ return p? &sb201_playcaps : &sb201_reccaps;
+ return p? &sbpro_playcaps : &sbpro_reccaps;
+}
+
+static kobj_method_t sbchan_methods[] = {
+ KOBJMETHOD(channel_init, sbchan_init),
+ KOBJMETHOD(channel_setformat, sbchan_setformat),
+ KOBJMETHOD(channel_setspeed, sbchan_setspeed),
+ KOBJMETHOD(channel_setblocksize, sbchan_setblocksize),
+ KOBJMETHOD(channel_trigger, sbchan_trigger),
+ KOBJMETHOD(channel_getptr, sbchan_getptr),
+ KOBJMETHOD(channel_getcaps, sbchan_getcaps),
+ { 0, 0 }
+};
+CHANNEL_DECLARE(sbchan);
+
+/************************************************************/
+
+static int
+sb_probe(device_t dev)
+{
+ char buf[64];
+ uintptr_t func, ver, r, f;
+
+ /* The parent device has already been probed. */
+ r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
+ if (func != SCF_PCM)
+ return (ENXIO);
+
+ r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
+ f = (ver & 0xffff0000) >> 16;
+ ver &= 0x0000ffff;
+ if ((f & BD_F_ESS) || (ver >= 0x400))
+ return (ENXIO);
+
+ snprintf(buf, sizeof buf, "SB DSP %d.%02d", (int) ver >> 8, (int) ver & 0xff);
+
+ device_set_desc_copy(dev, buf);
+
+ return 0;
+}
+
+static int
+sb_attach(device_t dev)
+{
+ struct sb_info *sb;
+ char status[SND_STATUSLEN];
+ uintptr_t ver;
+
+ sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT | M_ZERO);
+ if (!sb)
+ return ENXIO;
+
+ sb->parent_dev = device_get_parent(dev);
+ BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
+ sb->bd_id = ver & 0x0000ffff;
+ sb->bd_flags = (ver & 0xffff0000) >> 16;
+ sb->bufsize = pcm_getbuffersize(dev, 4096, SB_DEFAULT_BUFSZ, 65536);
+
+ if (sb_alloc_resources(sb, dev))
+ goto no;
+ if (sb_reset_dsp(sb))
+ goto no;
+ if (mixer_init(dev, (sb->bd_id < 0x300)? &sbmix_mixer_class : &sbpromix_mixer_class, sb))
+ goto no;
+ if (snd_setup_intr(dev, sb->irq, INTR_MPSAFE, sb_intr, sb, &sb->ih))
+ goto no;
+
+ pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
+
+ if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
+ /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
+ /*highaddr*/BUS_SPACE_MAXADDR,
+ /*filter*/NULL, /*filterarg*/NULL,
+ /*maxsize*/sb->bufsize, /*nsegments*/1,
+ /*maxsegz*/0x3ffff, /*flags*/0,
+ /*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
+ &sb->parent_dmat) != 0) {
+ device_printf(dev, "unable to create dma tag\n");
+ goto no;
+ }
+
+ snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld bufsz %u",
+ rman_get_start(sb->io_base), rman_get_start(sb->irq), rman_get_start(sb->drq), sb->bufsize);
+
+ if (pcm_register(dev, sb, 1, 1))
+ goto no;
+ pcm_addchan(dev, PCMDIR_REC, &sbchan_class, sb);
+ pcm_addchan(dev, PCMDIR_PLAY, &sbchan_class, sb);
+
+ pcm_setstatus(dev, status);
+
+ return 0;
+
+no:
+ sb_release_resources(sb, dev);
+ return ENXIO;
+}
+
+static int
+sb_detach(device_t dev)
+{
+ int r;
+ struct sb_info *sb;
+
+ r = pcm_unregister(dev);
+ if (r)
+ return r;
+
+ sb = pcm_getdevinfo(dev);
+ sb_release_resources(sb, dev);
+ return 0;
+}
+
+static device_method_t sb_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, sb_probe),
+ DEVMETHOD(device_attach, sb_attach),
+ DEVMETHOD(device_detach, sb_detach),
+
+ { 0, 0 }
+};
+
+static driver_t sb_driver = {
+ "pcm",
+ sb_methods,
+ PCM_SOFTC_SIZE,
+};
+
+DRIVER_MODULE(snd_sb8, sbc, sb_driver, pcm_devclass, 0, 0);
+MODULE_DEPEND(snd_sb8, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
+MODULE_DEPEND(snd_sb8, snd_sbc, 1, 1, 1);
+MODULE_VERSION(snd_sb8, 1);
+
+
+
+
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