235 lines
6.6 KiB
C
235 lines
6.6 KiB
C
/* $NetBSD: sony_acpi.c,v 1.5 2006/11/16 01:32:38 christos Exp $ */
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/*-
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* Copyright (c) 2005 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: sony_acpi.c,v 1.5 2006/11/16 01:32:38 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/kernel.h>
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#include <sys/callout.h>
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#include <sys/sysctl.h>
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#include <machine/bus.h>
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#include <dev/acpi/acpica.h>
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#include <dev/acpi/acpivar.h>
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struct sony_acpi_softc {
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struct device sc_dev;
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struct sysctllog *sc_log;
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struct acpi_devnode *sc_node;
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};
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static const char * const sony_acpi_ids[] = {
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"SNY5001",
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NULL
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};
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static int sony_acpi_match(struct device *, struct cfdata *, void *);
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static void sony_acpi_attach(struct device *, struct device *, void *);
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static ACPI_STATUS sony_acpi_eval_set_integer(ACPI_HANDLE, const char *,
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ACPI_INTEGER, ACPI_INTEGER *);
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CFATTACH_DECL(sony_acpi, sizeof(struct sony_acpi_softc),
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sony_acpi_match, sony_acpi_attach, NULL, NULL);
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static int
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sony_acpi_match(struct device *parent, struct cfdata *match,
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void *aux)
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{
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struct acpi_attach_args *aa = aux;
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if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
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return 0;
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return acpi_match_hid(aa->aa_node->ad_devinfo, sony_acpi_ids);
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}
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static int
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sony_sysctl_helper(SYSCTLFN_ARGS)
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{
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struct sysctlnode node;
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ACPI_INTEGER acpi_val;
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ACPI_STATUS rv;
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int val, old_val, error;
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char buf[SYSCTL_NAMELEN + 1], *ptr;
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struct sony_acpi_softc *sc = rnode->sysctl_data;
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(void)snprintf(buf, sizeof(buf), "G%s", rnode->sysctl_name);
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for (ptr = buf; *ptr; ptr++)
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*ptr = toupper(*ptr);
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rv = acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val);
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if (ACPI_FAILURE(rv)) {
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#ifdef DIAGNOSTIC
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printf("%s: couldn't get `%s'\n", sc->sc_dev.dv_xname, buf);
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#endif
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return EIO;
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}
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val = old_val = acpi_val;
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node = *rnode;
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node.sysctl_data = &val;
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error = sysctl_lookup(SYSCTLFN_CALL(&node));
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if (error || newp == NULL)
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return error;
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(void)snprintf(buf, sizeof(buf), "S%s", rnode->sysctl_name);
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acpi_val = val;
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rv = sony_acpi_eval_set_integer(sc->sc_node->ad_handle, buf,
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acpi_val, NULL);
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if (ACPI_FAILURE(rv)) {
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#ifdef DIAGNOSTIC
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printf("%s: couldn't set `%s' to %d\n",
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sc->sc_dev.dv_xname, buf, val);
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#endif
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return EIO;
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}
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return 0;
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}
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static ACPI_STATUS
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sony_walk_cb(ACPI_HANDLE hnd, UINT32 v, void *context,
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void **status)
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{
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struct sony_acpi_softc *sc = (void*)context;
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const struct sysctlnode *node, *snode;
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const char *name = acpi_name(hnd);
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ACPI_INTEGER acpi_val;
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char buf[SYSCTL_NAMELEN + 1], *ptr;
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int rv;
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if ((name = strrchr(name, '.')) == NULL)
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return AE_OK;
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name++;
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if ((*name != 'G') && (*name != 'S'))
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return AE_OK;
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(void)strlcpy(buf, name, sizeof(buf));
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*buf = 'G';
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/*
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* We assume that if the 'get' of the name as an integer is
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* successful it is ok.
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*/
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if (acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val))
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return AE_OK;
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for (ptr = buf; *ptr; ptr++)
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*ptr = tolower(*ptr);
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if ((rv = sysctl_createv(&sc->sc_log, 0, NULL, &node, CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
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goto out;
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if ((rv = sysctl_createv(&sc->sc_log, 0, &node, &snode, 0,
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CTLTYPE_NODE, sc->sc_dev.dv_xname, SYSCTL_DESCR("sony controls"),
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NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
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goto out;
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if ((rv = sysctl_createv(&sc->sc_log, 0, &snode, &node,
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CTLFLAG_READWRITE, CTLTYPE_INT, buf + 1, NULL,
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sony_sysctl_helper, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0)
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goto out;
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out:
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#ifdef DIAGNOSTIC
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if (rv)
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printf("%s: sysctl_createv failed (rv = %d)\n",
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sc->sc_dev.dv_xname, rv);
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#endif
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return AE_OK;
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}
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ACPI_STATUS
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sony_acpi_eval_set_integer(ACPI_HANDLE handle, const char *path,
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ACPI_INTEGER val, ACPI_INTEGER *valp)
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{
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ACPI_STATUS rv;
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ACPI_BUFFER buf;
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ACPI_OBJECT param, ret_val;
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ACPI_OBJECT_LIST params;
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if (handle == NULL)
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handle = ACPI_ROOT_OBJECT;
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params.Count = 1;
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params.Pointer = ¶m;
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param.Type = ACPI_TYPE_INTEGER;
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param.Integer.Value = val;
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buf.Pointer = &ret_val;
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buf.Length = sizeof(ret_val);
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rv = AcpiEvaluateObjectTyped(handle, path, ¶ms, &buf,
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ACPI_TYPE_INTEGER);
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if (ACPI_SUCCESS(rv) && valp)
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*valp = ret_val.Integer.Value;
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return rv;
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}
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static void
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sony_acpi_attach(struct device *parent, struct device *self, void *aux)
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{
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struct sony_acpi_softc *sc = (void *)self;
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struct acpi_attach_args *aa = aux;
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ACPI_STATUS rv;
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aprint_naive(": Sony Miscellaneous Controller\n");
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aprint_normal(": Sony Miscellaneous Controller\n");
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sc->sc_node = aa->aa_node;
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/* Install sysctl handler */
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rv = AcpiWalkNamespace(ACPI_TYPE_METHOD,
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sc->sc_node->ad_handle, 1, sony_walk_cb, sc, NULL);
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#ifdef DIAGNOSTIC
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if (ACPI_FAILURE(rv))
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aprint_error("%s: Cannot walk ACPI namespace (%d)\n",
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sc->sc_dev.dv_xname, rv);
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#endif
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}
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