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path: root/sys/dev/sound/pci/via82c686.c
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Diffstat (limited to 'sys/dev/sound/pci/via82c686.c')
-rw-r--r--sys/dev/sound/pci/via82c686.c689
1 files changed, 0 insertions, 689 deletions
diff --git a/sys/dev/sound/pci/via82c686.c b/sys/dev/sound/pci/via82c686.c
deleted file mode 100644
index df721366c3cfa..0000000000000
--- a/sys/dev/sound/pci/via82c686.c
+++ /dev/null
@@ -1,689 +0,0 @@
-/*
- * Copyright (c) 2000 David Jones <dej@ox.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, 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.
- *
- * $FreeBSD$
- */
-
-#include <dev/sound/pcm/sound.h>
-#include <dev/sound/pcm/ac97.h>
-
-#include <pci/pcireg.h>
-#include <pci/pcivar.h>
-#include <sys/sysctl.h>
-
-#include <dev/sound/pci/via82c686.h>
-
-#define VIA_PCI_ID 0x30581106
-#define NSEGS 16 /* Number of segments in SGD table */
-
-#define SEGS_PER_CHAN (NSEGS/2)
-
-#undef DEB
-#define DEB(x)
-
-struct via_info;
-
-struct via_chinfo {
- struct via_info *parent;
- pcm_channel *channel;
- snd_dbuf *buffer;
- int dir;
-};
-
-struct via_info {
- bus_space_tag_t st;
- bus_space_handle_t sh;
- bus_dma_tag_t parent_dmat;
- bus_dma_tag_t sgd_dmat;
-
- struct resource *reg, *irq;
- int regid, irqid;
- void *ih;
-
- struct via_chinfo pch, rch;
- struct via_dma_op *sgd_table;
- u_int16_t codec_caps;
-};
-
-static u_int32_t via_rd(struct via_info *via, int regno, int size);
-static void via_wr(struct via_info *, int regno, u_int32_t data, int size);
-
-int via_waitready_codec(struct via_info *via);
-int via_waitvalid_codec(struct via_info *via);
-u_int32_t via_read_codec(void *addr, int reg);
-void via_write_codec(void *addr, int reg, u_int32_t val);
-
-static void via_intr(void *);
-bus_dmamap_callback_t dma_cb;
-
-
-/* channel interface */
-static void *viachan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
-static int viachan_setdir(void *data, int dir);
-static int viachan_setformat(void *data, u_int32_t format);
-static int viachan_setspeed(void *data, u_int32_t speed);
-static int viachan_setblocksize(void *data, u_int32_t blocksize);
-static int viachan_trigger(void *data, int go);
-static int viachan_getptr(void *data);
-static pcmchan_caps *viachan_getcaps(void *data);
-
-static u_int32_t via_playfmt[] = {
- AFMT_U8,
- AFMT_STEREO | AFMT_U8,
- AFMT_S16_LE,
- AFMT_STEREO | AFMT_S16_LE,
- 0
-};
-static pcmchan_caps via_playcaps = {4000, 48000, via_playfmt, 0};
-
-static u_int32_t via_recfmt[] = {
- AFMT_U8,
- AFMT_STEREO | AFMT_U8,
- AFMT_S16_LE,
- AFMT_STEREO | AFMT_S16_LE,
- 0
-};
-static pcmchan_caps via_reccaps = {4000, 48000, via_recfmt, 0};
-
-static pcm_channel via_chantemplate = {
- viachan_init,
- viachan_setdir,
- viachan_setformat,
- viachan_setspeed,
- viachan_setblocksize,
- viachan_trigger,
- viachan_getptr,
- viachan_getcaps,
- NULL, /* free */
- NULL, /* nop1 */
- NULL, /* nop2 */
- NULL, /* nop3 */
- NULL, /* nop4 */
- NULL, /* nop5 */
- NULL, /* nop6 */
- NULL, /* nop7 */
-};
-
-
-/*
- * Probe and attach the card
- */
-static int
-via_probe(device_t dev)
-{
- if (pci_get_devid(dev) == VIA_PCI_ID) {
- device_set_desc(dev, "VIA VT82C686A AC'97 Audio");
- return 0;
- }
- return ENXIO;
-}
-
-
-void dma_cb(void *p, bus_dma_segment_t *bds, int a, int b)
-{
-}
-
-
-static int
-via_attach(device_t dev)
-{
- struct via_info *via = 0;
- struct ac97_info *codec = 0;
- char status[SND_STATUSLEN];
-
- u_int32_t data;
-
- u_int16_t v;
- bus_dmamap_t sgd_dma_map;
-
- if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT)) == NULL) {
- device_printf(dev, "cannot allocate softc\n");
- return ENXIO;
- }
- bzero(via, sizeof *via);
-
- /* Get resources */
- 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);
-
- pci_write_config(dev, VIA_PCICONF_MISC,
- VIA_PCICONF_ACLINKENAB | VIA_PCICONF_ACSGD |
- VIA_PCICONF_ACNOTRST | VIA_PCICONF_ACVSR, 1);
-
- via->regid = PCIR_MAPS;
- via->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &via->regid,
- 0, ~0, 1, RF_ACTIVE);
- if (!via->reg) {
- device_printf(dev, "via: Cannot allocate bus resource.");
- goto bad;
- }
- via->st = rman_get_bustag(via->reg);
- via->sh = rman_get_bushandle(via->reg);
-
- via->irqid = 0;
- via->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &via->irqid,
- 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
- if (!via->irq
- || bus_setup_intr(dev, via->irq, INTR_TYPE_TTY, via_intr, via, &via->ih)){
- device_printf(dev, "unable to map interrupt\n");
- goto bad;
- }
-
- via_wr(via, VIA_PLAY_MODE,
- VIA_RPMODE_AUTOSTART |
- VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1);
- via_wr(via, VIA_RECORD_MODE,
- VIA_RPMODE_AUTOSTART |
- VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1);
-
- codec = ac97_create(dev, via, NULL,
- via_read_codec, via_write_codec);
- if (!codec) goto bad;
-
- mixer_init(dev, &ac97_mixer, codec);
-
- /*
- * The mixer init resets the codec. So enabling VRA must be done
- * afterwards.
- */
- v = via_read_codec(via, AC97_REG_EXT_AUDIO_ID);
- v &= (AC97_ENAB_VRA | AC97_ENAB_MICVRA);
- via_write_codec(via, AC97_REG_EXT_AUDIO_STAT, v);
- via->codec_caps = v;
- {
- v = via_read_codec(via, AC97_REG_EXT_AUDIO_STAT);
- DEB(printf("init: codec stat: %d\n", v));
- }
-
- if (!(v & AC97_CODEC_DOES_VRA)) {
- /* no VRA => can do only 48 kbps */
- via_playcaps.minspeed = 48000;
- via_reccaps.minspeed = 48000;
- }
-
- /* DMA tag for buffers */
- if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
- /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
- /*highaddr*/BUS_SPACE_MAXADDR,
- /*filter*/NULL, /*filterarg*/NULL,
- /*maxsize*/VIA_BUFFSIZE, /*nsegments*/1, /*maxsegz*/0x3ffff,
- /*flags*/0, &via->parent_dmat) != 0) {
- device_printf(dev, "unable to create dma tag\n");
- goto bad;
- }
-
- /*
- * DMA tag for SGD table. The 686 uses scatter/gather DMA and
- * requires a list in memory of work to do. We need only 16 bytes
- * for this list, and it is wasteful to allocate 16K.
- */
- if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
- /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
- /*highaddr*/BUS_SPACE_MAXADDR,
- /*filter*/NULL, /*filterarg*/NULL,
- /*maxsize*/NSEGS * sizeof(struct via_dma_op),
- /*nsegments*/1, /*maxsegz*/0x3ffff,
- /*flags*/0, &via->sgd_dmat) != 0) {
- device_printf(dev, "unable to create dma tag\n");
- goto bad;
- }
-
- if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table,
- BUS_DMA_NOWAIT, &sgd_dma_map) == -1) goto bad;
- if (bus_dmamap_load(via->sgd_dmat, sgd_dma_map, via->sgd_table,
- NSEGS * sizeof(struct via_dma_op), dma_cb, 0, 0)) goto bad;
-
- snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld",
- rman_get_start(via->reg), rman_get_start(via->irq));
-
- /* Register */
- if (pcm_register(dev, via, 1, 1)) goto bad;
- pcm_addchan(dev, PCMDIR_PLAY, &via_chantemplate, via);
- pcm_addchan(dev, PCMDIR_REC, &via_chantemplate, via);
- pcm_setstatus(dev, status);
- return 0;
-bad:
- if (codec) ac97_destroy(codec);
- if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg);
- if (via->ih) bus_teardown_intr(dev, via->irq, via->ih);
- if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq);
- if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat);
- if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat);
- if (via) free(via, M_DEVBUF);
- return ENXIO;
-}
-
-static int
-via_detach(device_t dev)
-{
- int r;
- struct via_info *via = 0;
-
- r = pcm_unregister(dev);
- if (r)
- return r;
-
- via = pcm_getdevinfo(dev);
- bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg);
- bus_teardown_intr(dev, via->irq, via->ih);
- bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq);
- bus_dma_tag_destroy(via->parent_dmat);
- bus_dma_tag_destroy(via->sgd_dmat);
- free(via, M_DEVBUF);
- return 0;
-}
-
-
-static device_method_t via_methods[] = {
- DEVMETHOD(device_probe, via_probe),
- DEVMETHOD(device_attach, via_attach),
- DEVMETHOD(device_detach, via_detach),
- { 0, 0}
-};
-
-static driver_t via_driver = {
- "pcm",
- via_methods,
- sizeof(snddev_info),
-};
-
-static devclass_t pcm_devclass;
-
-DRIVER_MODULE(via, pci, via_driver, pcm_devclass, 0, 0);
-MODULE_DEPEND(via, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
-MODULE_VERSION(via, 1);
-
-
-static u_int32_t
-via_rd(struct via_info *via, int regno, int size)
-{
-
- switch (size) {
- case 1:
- return bus_space_read_1(via->st, via->sh, regno);
- case 2:
- return bus_space_read_2(via->st, via->sh, regno);
- case 4:
- return bus_space_read_4(via->st, via->sh, regno);
- default:
- return 0xFFFFFFFF;
- }
-}
-
-
-static void
-via_wr(struct via_info *via, int regno, u_int32_t data, int size)
-{
-
- switch (size) {
- case 1:
- bus_space_write_1(via->st, via->sh, regno, data);
- break;
- case 2:
- bus_space_write_2(via->st, via->sh, regno, data);
- break;
- case 4:
- bus_space_write_4(via->st, via->sh, regno, data);
- break;
- }
-}
-
-
-/* Codec interface */
-int
-via_waitready_codec(struct via_info *via)
-{
- int i;
-
- /* poll until codec not busy */
- for (i = 0; (i < TIMEOUT) &&
- (via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_BUSY); i++)
- DELAY(1);
- if (i >= TIMEOUT) {
- printf("via: codec busy\n");
- return 1;
- }
-
- return 0;
-}
-
-
-int
-via_waitvalid_codec(struct via_info *via)
-{
- int i;
-
- /* poll until codec valid */
- for (i = 0; (i < TIMEOUT) &&
- !(via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_PRIVALID); i++)
- DELAY(1);
- if (i >= TIMEOUT) {
- printf("via: codec invalid\n");
- return 1;
- }
-
- return 0;
-}
-
-
-void
-via_write_codec(void *addr, int reg, u_int32_t val)
-{
- struct via_info *via = addr;
-
- if (via_waitready_codec(via)) return;
-
- via_wr(via, VIA_CODEC_CTL,
- VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4);
-}
-
-
-u_int32_t
-via_read_codec(void *addr, int reg)
-{
- struct via_info *via = addr;
-
- if (via_waitready_codec(via))
- return 1;
-
- via_wr(via, VIA_CODEC_CTL,
- VIA_CODEC_PRIVALID | VIA_CODEC_READ | VIA_CODEC_INDEX(reg),4);
-
- if (via_waitready_codec(via))
- return 1;
-
- if (via_waitvalid_codec(via))
- return 1;
-
- return via_rd(via, VIA_CODEC_CTL, 2);
-}
-
-
-/* channel interface */
-static void *
-viachan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
-{
- struct via_info *via = devinfo;
- struct via_chinfo *ch = (dir == PCMDIR_PLAY) ? &via->pch : &via->rch;
-
- ch->parent = via;
- ch->channel = c;
- ch->buffer = b;
- b->bufsize = VIA_BUFFSIZE;
-
- if (chn_allocbuf(ch->buffer, via->parent_dmat) == -1) return NULL;
- return ch;
-}
-
-static int
-viachan_setdir(void *data, int dir)
-{
- struct via_chinfo *ch = data;
- struct via_info *via = ch->parent;
- struct via_dma_op *ado;
- int i, chunk_size;
- int phys_addr, flag;
-
- ch->dir = dir;
- /*
- * Build the scatter/gather DMA (SGD) table.
- * There are four slots in the table: two for play, two for record.
- * This creates two half-buffers, one of which is playing; the other
- * is feeding.
- */
- ado = via->sgd_table;
- chunk_size = ch->buffer->bufsize / SEGS_PER_CHAN;
-
- if (dir == PCMDIR_REC) {
- ado += SEGS_PER_CHAN;
- }
-
-DEB(printf("SGD table located at va %p\n", ado));
- phys_addr = vtophys(ch->buffer->buf);
- for (i = 0; i < SEGS_PER_CHAN; i++) {
- ado->ptr = phys_addr;
- flag = (i == SEGS_PER_CHAN-1) ?
- VIA_DMAOP_EOL : VIA_DMAOP_FLAG;
- ado->flags = flag | chunk_size;
-DEB(printf("ado->ptr/flags = %x/%x\n", phys_addr, flag));
- phys_addr += chunk_size;
- ado++;
- }
- return 0;
-}
-
-static int
-viachan_setformat(void *data, u_int32_t format)
-{
- struct via_chinfo *ch = data;
- struct via_info *via = ch->parent;
- int mode, mode_set;
-
- mode_set = 0;
- if (format & AFMT_STEREO)
- mode_set |= VIA_RPMODE_STEREO;
- if (format & AFMT_S16_LE)
- mode_set |= VIA_RPMODE_16BIT;
-
- /* Set up for output format */
- if (ch->dir == PCMDIR_PLAY) {
-DEB(printf("set play format: %x\n", format));
- mode = via_rd(via, VIA_PLAY_MODE, 1);
- mode &= ~(VIA_RPMODE_16BIT | VIA_RPMODE_STEREO);
- mode |= mode_set;
- via_wr(via, VIA_PLAY_MODE, mode, 1);
- }
- else {
-DEB(printf("set record format: %x\n", format));
- mode = via_rd(via, VIA_RECORD_MODE, 1);
- mode &= ~(VIA_RPMODE_16BIT | VIA_RPMODE_STEREO);
- mode |= mode_set;
- via_wr(via, VIA_RECORD_MODE, mode, 1);
- }
-
- return 0;
-}
-
-static int
-viachan_setspeed(void *data, u_int32_t speed)
-{
- struct via_chinfo *ch = data;
- struct via_info *via = ch->parent;
-
- /*
- * Basic AC'97 defines a 48 kHz sample rate only. For other rates,
- * upsampling is required.
- *
- * The VT82C686A does not perform upsampling, and neither do we.
- * If the codec supports variable-rate audio (i.e. does the upsampling
- * itself), then negotiate the rate with the codec. Otherwise,
- * return 48 kHz cuz that's all you got.
- */
- if (ch->dir == PCMDIR_PLAY) {
-DEB(printf("requested play speed: %d\n", speed));
- if (via->codec_caps & AC97_CODEC_DOES_VRA) {
- via_write_codec(via, AC97_REG_EXT_DAC_RATE, speed);
- speed = via_read_codec(via, AC97_REG_EXT_DAC_RATE);
- }
- else {
-DEB(printf("VRA not supported!\n"));
- speed = 48000;
- }
-DEB(printf("obtained play speed: %d\n", speed));
- }
- else {
-DEB(printf("requested record speed: %d\n", speed));
- if (via->codec_caps & AC97_CODEC_DOES_VRA) {
- via_write_codec(via, AC97_REG_EXT_ADC_RATE, speed);
- speed = via_read_codec(via, AC97_REG_EXT_ADC_RATE);
- }
- else {
-DEB(printf("VRA not supported!\n"));
- speed = 48000;
- }
-DEB(printf("obtained record speed: %d\n", speed));
- }
- return speed;
-}
-
-static int
-viachan_setblocksize(void *data, u_int32_t blocksize)
-{
- struct via_chinfo *ch = data;
-
- return ch->buffer->bufsize / 2;
-}
-
-static int
-viachan_trigger(void *data, int go)
-{
- struct via_chinfo *ch = data;
- struct via_info *via = ch->parent;
- struct via_dma_op *ado;
-
- if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD) return 0;
- if (ch->dir == PCMDIR_PLAY) {
- if (go == PCMTRIG_START) {
- ado = &via->sgd_table[0];
-DEB(printf("ado located at va=%p pa=%x\n", ado, vtophys(ado)));
- via_wr(via, VIA_PLAY_DMAOPS_BASE, vtophys(ado),4);
- via_wr(via, VIA_PLAY_CONTROL,
- VIA_RPCTRL_START, 1);
- }
- else {
- /* Stop DMA */
- via_wr(via, VIA_PLAY_CONTROL,
- VIA_RPCTRL_TERMINATE, 1);
- }
- } else {
- if (go == PCMTRIG_START) {
- ado = &via->sgd_table[SEGS_PER_CHAN];
-DEB(printf("ado located at va=%p pa=%x\n", ado, vtophys(ado)));
- via_wr(via, VIA_RECORD_DMAOPS_BASE,
- vtophys(ado),4);
- via_wr(via, VIA_RECORD_CONTROL,
- VIA_RPCTRL_START, 1);
- }
- else {
- /* Stop DMA */
- via_wr(via, VIA_RECORD_CONTROL,
- VIA_RPCTRL_TERMINATE, 1);
- }
- }
-
-DEB(printf("viachan_trigger: go=%d\n", go));
- return 0;
-}
-
-static int
-viachan_getptr(void *data)
-{
- struct via_chinfo *ch = data;
- struct via_info *via = ch->parent;
- struct via_dma_op *ado;
- int ptr, base, len, seg;
- int base1;
-
- if (ch->dir == PCMDIR_PLAY) {
- ado = &via->sgd_table[0];
- base1 = via_rd(via, VIA_PLAY_DMAOPS_BASE, 4);
- len = via_rd(via, VIA_PLAY_DMAOPS_COUNT, 4);
- base = via_rd(via, VIA_PLAY_DMAOPS_BASE, 4);
- if (base != base1) { /* Avoid race hazzard */
- len = via_rd(via, VIA_PLAY_DMAOPS_COUNT, 4);
- }
-DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base));
-
- /* Base points to SGD segment to do, one past current */
-
- /* Determine how many segments have been done */
- seg = (base - vtophys(ado)) / sizeof(struct via_dma_op);
- if (seg == 0) seg = SEGS_PER_CHAN;
-
- /* Now work out offset: seg less count */
- ptr = seg * ch->buffer->bufsize / SEGS_PER_CHAN - len;
-DEB(printf("return ptr=%d\n", ptr));
- return ptr;
- }
- else {
- base1 = via_rd(via, VIA_RECORD_DMAOPS_BASE, 4);
- ado = &via->sgd_table[SEGS_PER_CHAN];
- len = via_rd(via, VIA_RECORD_DMAOPS_COUNT, 4);
- base = via_rd(via, VIA_RECORD_DMAOPS_BASE, 4);
- if (base != base1) { /* Avoid race hazzard */
- len = via_rd(via, VIA_RECORD_DMAOPS_COUNT, 4);
- }
-DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base));
-
- /* Base points to next block to do, one past current */
-
- /* Determine how many segments have been done */
- seg = (base - vtophys(ado)) / sizeof(struct via_dma_op);
- if (seg == 0) seg = SEGS_PER_CHAN;
-
- /* Now work out offset: seg less count */
- ptr = seg * ch->buffer->bufsize / SEGS_PER_CHAN - len;
-
- /* DMA appears to operate on memory 'lines' of 32 bytes */
- /* so don't return any part line - it isn't in RAM yet */
- ptr = ptr & ~0x1f;
-DEB(printf("return ptr=%d\n", ptr));
- return ptr;
- }
- return 0;
-}
-
-static pcmchan_caps *
-viachan_getcaps(void *data)
-{
- struct via_chinfo *ch = data;
- return (ch->dir == PCMDIR_PLAY) ? &via_playcaps : &via_reccaps;
-}
-
-static void
-via_intr(void *p)
-{
- struct via_info *via = p;
- int st;
-
-DEB(printf("viachan_intr\n"));
- /* Read channel */
- st = via_rd(via, VIA_PLAY_STAT, 1);
- if (st & VIA_RPSTAT_INTR) {
- via_wr(via, VIA_PLAY_STAT, VIA_RPSTAT_INTR, 1);
- chn_intr(via->pch.channel);
- }
-
- /* Write channel */
- st = via_rd(via, VIA_RECORD_STAT, 1);
- if (st & VIA_RPSTAT_INTR) {
- via_wr(via, VIA_RECORD_STAT, VIA_RPSTAT_INTR, 1);
- chn_intr(via->rch.channel);
- }
-}
-
-