NetBSD-5.0.2/sys/dev/pci/cs428x.c
/* $NetBSD: cs428x.c,v 1.15 2008/04/10 19:13:36 cegger Exp $ */
/*
* Copyright (c) 2000 Tatoku Ogaito. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Tatoku Ogaito
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/* Common functions for CS4280 and CS4281 */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cs428x.c,v 1.15 2008/04/10 19:13:36 cegger Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pcivar.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/midi_if.h>
#include <dev/mulaw.h>
#include <dev/auconv.h>
#include <dev/ic/ac97reg.h>
#include <dev/ic/ac97var.h>
#include <sys/bus.h>
#include <dev/pci/cs428xreg.h>
#include <dev/pci/cs428x.h>
#if defined(CS4280_DEBUG) || defined(CS4281_DEBUG)
int cs428x_debug = 0;
#endif
int
cs428x_round_blocksize(void *addr, int blk,
int mode, const audio_params_t *param)
{
struct cs428x_softc *sc;
int retval;
DPRINTFN(5,("cs428x_round_blocksize blk=%d -> ", blk));
sc = addr;
if (blk < sc->hw_blocksize)
retval = sc->hw_blocksize;
else
retval = blk & -(sc->hw_blocksize);
DPRINTFN(5,("%d\n", retval));
return retval;
}
int
cs428x_mixer_set_port(void *addr, mixer_ctrl_t *cp)
{
struct cs428x_softc *sc;
int val;
sc = addr;
val = sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp);
DPRINTFN(3,("mixer_set_port: val=%d\n", val));
return (val);
}
int
cs428x_mixer_get_port(void *addr, mixer_ctrl_t *cp)
{
struct cs428x_softc *sc;
sc = addr;
return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp));
}
int
cs428x_query_devinfo(void *addr, mixer_devinfo_t *dip)
{
struct cs428x_softc *sc;
sc = addr;
return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip));
}
void *
cs428x_malloc(void *addr, int direction, size_t size,
struct malloc_type *pool, int flags)
{
struct cs428x_softc *sc;
struct cs428x_dma *p;
int error;
sc = addr;
p = malloc(sizeof(*p), pool, flags);
if (p == NULL)
return 0;
error = cs428x_allocmem(sc, size, pool, flags, p);
if (error) {
free(p, pool);
return 0;
}
p->next = sc->sc_dmas;
sc->sc_dmas = p;
return BUFADDR(p);
}
void
cs428x_free(void *addr, void *ptr, struct malloc_type *pool)
{
struct cs428x_softc *sc;
struct cs428x_dma **pp, *p;
sc = addr;
for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
if (BUFADDR(p) == ptr) {
bus_dmamap_unload(sc->sc_dmatag, p->map);
bus_dmamap_destroy(sc->sc_dmatag, p->map);
bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
free(p->dum, pool);
*pp = p->next;
free(p, pool);
return;
}
}
}
size_t
cs428x_round_buffersize(void *addr, int direction,
size_t size)
{
/* The real DMA buffersize are 4KB for CS4280
* and 64kB/MAX_CHANNELS for CS4281.
* But they are too small for high quality audio,
* let the upper layer(audio) use a larger buffer.
* (originally suggested by Lennart Augustsson.)
*/
return size;
}
paddr_t
cs428x_mappage(void *addr, void *mem, off_t off, int prot)
{
struct cs428x_softc *sc;
struct cs428x_dma *p;
sc = addr;
if (off < 0)
return -1;
for (p = sc->sc_dmas; p && BUFADDR(p) != mem; p = p->next)
continue;
if (p == NULL) {
DPRINTF(("cs428x_mappage: bad buffer address\n"));
return -1;
}
return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
off, prot, BUS_DMA_WAITOK));
}
int
cs428x_get_props(void *addr)
{
int retval;
retval = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
#ifdef MMAP_READY
/* How can I mmap ? */
retval |= AUDIO_PROP_MMAP;
#endif
return retval;
}
/* AC97 */
int
cs428x_attach_codec(void *addr, struct ac97_codec_if *codec_if)
{
struct cs428x_softc *sc;
DPRINTF(("cs428x_attach_codec:\n"));
sc = addr;
sc->codec_if = codec_if;
return 0;
}
int
cs428x_read_codec(void *addr, uint8_t ac97_addr, uint16_t *ac97_data)
{
struct cs428x_softc *sc;
uint32_t acctl;
int n;
sc = addr;
DPRINTFN(5,("read_codec: add=0x%02x ", ac97_addr));
/*
* Make sure that there is not data sitting around from a previous
* uncompleted access.
*/
BA0READ4(sc, CS428X_ACSDA);
/* Set up AC97 control registers. */
BA0WRITE4(sc, CS428X_ACCAD, ac97_addr);
BA0WRITE4(sc, CS428X_ACCDA, 0);
acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_CRW | ACCTL_DCV;
if (sc->type == TYPE_CS4280)
acctl |= ACCTL_RSTN;
BA0WRITE4(sc, CS428X_ACCTL, acctl);
if (cs428x_src_wait(sc) < 0) {
printf("%s: AC97 read prob. (DCV!=0) for add=0x%0x\n",
device_xname(&sc->sc_dev), ac97_addr);
return 1;
}
/* wait for valid status bit is active */
n = 0;
while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_VSTS) == 0) {
delay(1);
while (++n > 1000) {
printf("%s: AC97 read fail (VSTS==0) for add=0x%0x\n",
device_xname(&sc->sc_dev), ac97_addr);
return 1;
}
}
*ac97_data = BA0READ4(sc, CS428X_ACSDA);
DPRINTFN(5,("data=0x%04x\n", *ac97_data));
return 0;
}
int
cs428x_write_codec(void *addr, uint8_t ac97_addr, uint16_t ac97_data)
{
struct cs428x_softc *sc;
uint32_t acctl;
sc = addr;
DPRINTFN(5,("write_codec: add=0x%02x data=0x%04x\n", ac97_addr, ac97_data));
BA0WRITE4(sc, CS428X_ACCAD, ac97_addr);
BA0WRITE4(sc, CS428X_ACCDA, ac97_data);
acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_DCV;
if (sc->type == TYPE_CS4280)
acctl |= ACCTL_RSTN;
BA0WRITE4(sc, CS428X_ACCTL, acctl);
if (cs428x_src_wait(sc) < 0) {
printf("%s: AC97 write fail (DCV!=0) for add=0x%02x data="
"0x%04x\n", device_xname(&sc->sc_dev), ac97_addr, ac97_data);
return 1;
}
return 0;
}
/* Internal functions */
int
cs428x_allocmem(struct cs428x_softc *sc,
size_t size, struct malloc_type *pool, int flags,
struct cs428x_dma *p)
{
int error;
size_t align;
align = sc->dma_align;
p->size = sc->dma_size;
/* allocate memory for upper audio driver */
p->dum = malloc(size, pool, flags);
if (p->dum == NULL)
return 1;
error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
&p->nsegs, BUS_DMA_NOWAIT);
if (error) {
aprint_error_dev(&sc->sc_dev, "unable to allocate DMA. error=%d\n",
error);
goto allfree;
}
error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
&p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
if (error) {
aprint_error_dev(&sc->sc_dev, "unable to map DMA, error=%d\n",
error);
goto free;
}
error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
0, BUS_DMA_NOWAIT, &p->map);
if (error) {
aprint_error_dev(&sc->sc_dev, "unable to create DMA map, error=%d\n",
error);
goto unmap;
}
error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
BUS_DMA_NOWAIT);
if (error) {
aprint_error_dev(&sc->sc_dev, "unable to load DMA map, error=%d\n",
error);
goto destroy;
}
return 0;
destroy:
bus_dmamap_destroy(sc->sc_dmatag, p->map);
unmap:
bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
free:
bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
allfree:
free(p->dum, pool);
return error;
}
int
cs428x_src_wait(struct cs428x_softc *sc)
{
int n;
n = 0;
while ((BA0READ4(sc, CS428X_ACCTL) & ACCTL_DCV)) {
delay(1000);
while (++n > 1000) {
printf("cs428x_src_wait: 0x%08x\n",
BA0READ4(sc, CS428X_ACCTL));
return -1;
}
}
return 0;
}