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/* $NetBSD: wss_acpi.c,v 1.38 2021/10/07 00:11:08 uwe Exp $ */
/*
* Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca>
* 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. 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wss_acpi.c,v 1.38 2021/10/07 00:11:08 uwe Exp $");
#include <sys/param.h>
#include <sys/audioio.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <dev/audio/audio_if.h>
#include <dev/acpi/acpivar.h>
#include <dev/isa/isadmavar.h>
#include <dev/isa/ad1848var.h>
#include <dev/isa/wssreg.h>
#include <dev/isa/wssvar.h>
static int wss_acpi_match(device_t, cfdata_t, void *);
static void wss_acpi_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(wss_acpi, sizeof(struct wss_softc), wss_acpi_match,
wss_acpi_attach, NULL, NULL);
/*
* Supported device IDs
*/
struct wss_acpi_hint {
char idstr[8];
int io_region_idx_ad1848; /* which region index is the DAC? */
int io_region_idx_opl; /* which region index is the OPL? */
int offset_ad1848; /* offset from start of DAC region */
};
static const struct wss_acpi_hint wss_acpi_hints[] = {
{ "NMX2210", 1, 2, WSS_CODEC },
{ "CSC0000", 0, 1, 0 }, /* Dell Latitude CPi */
{ "CSC0100", 0, 1, 0 }, /* CS4610 with CS4236 codec */
};
static int wss_acpi_hints_index (const char *);
static int
wss_acpi_hints_index(const char *idstr)
{
int idx;
if (idstr == NULL)
return -1;
for (idx = 0; idx < __arraycount(wss_acpi_hints); idx++) {
if (!strcmp(wss_acpi_hints[idx].idstr, idstr))
return idx;
}
return -1;
}
/*
* wss_acpi_match: autoconf(9) match routine
*/
static int
wss_acpi_match(device_t parent, cfdata_t match, void *aux)
{
struct acpi_attach_args *aa = aux;
if ((aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) == 0)
return 0;
if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE ||
wss_acpi_hints_index(aa->aa_node->ad_devinfo->HardwareId.String) == -1)
return 0;
return 1;
}
/*
* wss_acpi_attach: autoconf(9) attach routine
*/
static void
wss_acpi_attach(device_t parent, device_t self, void *aux)
{
struct wss_softc *sc = device_private(self);
struct acpi_attach_args *aa = aux;
struct acpi_resources res;
struct acpi_io *dspio, *oplio;
struct acpi_irq *irq;
struct acpi_drq *playdrq, *recdrq;
struct audio_attach_args arg;
ACPI_STATUS rv;
const struct wss_acpi_hint *wah;
sc->sc_ad1848.sc_ad1848.sc_dev = self;
wah = &wss_acpi_hints[
wss_acpi_hints_index(aa->aa_node->ad_devinfo->HardwareId.String)];
/* Parse our resources */
rv = acpi_resource_parse(self,
aa->aa_node->ad_handle, "_CRS", &res,
&acpi_resource_parse_ops_default);
if (ACPI_FAILURE(rv))
return;
/* Find and map our i/o registers */
sc->sc_iot = aa->aa_iot;
dspio = acpi_res_io(&res, wah->io_region_idx_ad1848);
oplio = acpi_res_io(&res, wah->io_region_idx_opl);
if (dspio == NULL || oplio == NULL) {
aprint_error_dev(self,
"unable to find i/o registers resource\n");
goto out;
}
if (bus_space_map(sc->sc_iot, dspio->ar_base, dspio->ar_length,
0, &sc->sc_ioh) != 0) {
aprint_error_dev(self, "unable to map i/o registers\n");
goto out;
}
if (bus_space_map(sc->sc_iot, oplio->ar_base, oplio->ar_length,
0, &sc->sc_opl_ioh) != 0) {
aprint_error_dev(self, "unable to map opl i/o registers\n");
goto out;
}
sc->wss_ic = aa->aa_ic;
/* Find our IRQ */
irq = acpi_res_irq(&res, 0);
if (irq == NULL) {
aprint_error_dev(self, "unable to find irq resource\n");
/* XXX bus_space_unmap */
goto out;
}
sc->wss_irq = irq->ar_irq;
/* Find our playback and record DRQs */
playdrq = acpi_res_drq(&res, 0);
recdrq = acpi_res_drq(&res, 1);
if (playdrq == NULL || recdrq == NULL) {
aprint_error_dev(self, " unable to find drq resources\n");
/* XXX bus_space_unmap */
goto out;
}
sc->wss_playdrq = playdrq->ar_drq;
sc->wss_recdrq = recdrq->ar_drq;
sc->sc_ad1848.sc_ad1848.sc_iot = sc->sc_iot;
bus_space_subregion(sc->sc_iot, sc->sc_ioh, wah->offset_ad1848, 4,
&sc->sc_ad1848.sc_ad1848.sc_ioh);
/* Look for the ad1848 */
if (!ad1848_isa_probe(&sc->sc_ad1848)) {
aprint_error_dev(self, "ad1848 probe failed\n");
/* XXX cleanup */
goto out;
}
/* Attach our wss device */
aprint_naive("%s", device_xname(self));
aprint_normal("%s", device_xname(self));
wssattach(sc);
arg.type = AUDIODEV_TYPE_OPL;
arg.hwif = 0;
arg.hdl = 0;
config_found(self, &arg, audioprint, CFARGS(.iattr = "wss"));
out:
acpi_resource_cleanup(&res);
}
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