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[src/sommerfeld_i386mp_1]: src/sys/arch/i386/acpi Copyright and comment clari...
details: https://anonhg.NetBSD.org/src/rev/6b5bfdd57c52
branches: sommerfeld_i386mp_1
changeset: 482547:6b5bfdd57c52
user: christos <christos%NetBSD.org@localhost>
date: Tue Jun 18 02:42:17 2002 +0000
description:
Copyright and comment clarification from Masanori-san.
diffstat:
sys/arch/i386/acpi/vald_acpi.c | 705 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 705 insertions(+), 0 deletions(-)
diffs (truncated from 709 to 300 lines):
diff -r 350a46a8d0c5 -r 6b5bfdd57c52 sys/arch/i386/acpi/vald_acpi.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/i386/acpi/vald_acpi.c Tue Jun 18 02:42:17 2002 +0000
@@ -0,0 +1,705 @@
+/* $NetBSD: vald_acpi.c,v 1.2.2.2 2002/06/18 02:42:17 christos Exp $ */
+
+/*-
+ * Copyright (c) 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Masanori Kanaoka.
+ *
+ * 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 the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*
+ * Copyright 2001 Bill Sommerfeld.
+ * 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 for the NetBSD Project by
+ * Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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.
+ */
+
+/* #define VALD_ACPI_DEBUG */
+
+/*
+ * ACPI VALD Driver for Toshiba Libretto L3.
+ * This driver is based on acpibat driver.
+ */
+
+/*
+ * Obtain information of Toshiba "GHCI" Method from next URL.
+ * http://www.buzzard.org.uk/toshiba/docs.html
+ * http://memebeam.org/toys/ToshibaAcpiDriver
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: vald_acpi.c,v 1.2.2.2 2002/06/18 02:42:17 christos Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h> /* for hz */
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/callout.h>
+
+#include <dev/acpi/acpica.h>
+#include <dev/acpi/acpireg.h>
+#include <dev/acpi/acpivar.h>
+
+#define GHCI_WORDS 6
+#define GHCI_FIFO_EMPTY 0x8c00
+#define GHCI_NOT_SUPPORT 0x8000
+
+#define GHCI_BACKLIGHT 0x0002
+#define GHCI_ACADAPTOR 0x0003
+#define GHCI_FAN 0x0004
+#define GHCI_SYSTEM_EVENT_FIFO 0x0016
+#define GHCI_DISPLAY_DEVICE 0x001C
+#define GHCI_HOTKEY_EVENT 0x001E
+
+#define GHCI_ON 0x0001
+#define GHCI_OFF 0x0000
+#define GHCI_ENABLE 0x0001
+#define GHCI_DISABLE 0x0000
+
+#define GHCI_CRT 0x0002
+#define GHCI_LCD 0x0001
+
+
+struct vald_acpi_softc {
+ struct device sc_dev; /* base device glue */
+ struct acpi_devnode *sc_node; /* our ACPI devnode */
+ int sc_flags; /* see below */
+ struct callout sc_callout; /* XXX temporary polling */
+
+ ACPI_HANDLE lcd_handle; /* lcd handle */
+ int *lcd_level; /* lcd brightness table */
+ int lcd_num; /* size of lcd brightness table */
+ int lcd_index; /* index of lcd brightness table */
+
+ int sc_ac_status; /* AC adaptor status when attach */
+
+ int sc_timer; /* event timer setting */
+
+ /* for GHCI Method */
+ ACPI_OBJECT sc_Arg[GHCI_WORDS]; /* Input Arg */
+ ACPI_OBJECT sc_Ret[GHCI_WORDS+1]; /* Return buffer */
+};
+
+#define AVALD_F_VERBOSE 0x01 /* verbose events */
+
+#define LIBRIGHT_HOLD 0x00
+#define LIBRIGHT_UP 0x01
+#define LIBRIGHT_DOWN 0x02
+
+int vald_acpi_match(struct device *, struct cfdata *, void *);
+void vald_acpi_attach(struct device *, struct device *, void *);
+
+void vald_acpi_event(void *);
+static void vald_acpi_tick(void *);
+
+ACPI_STATUS vald_acpi_ghci_get(struct vald_acpi_softc *, UINT32, UINT32 *,
+ UINT32 *);
+ACPI_STATUS vald_acpi_ghci_set(struct vald_acpi_softc *, UINT32, UINT32,
+ UINT32 *);
+
+ACPI_STATUS vald_acpi_libright_get_bus(ACPI_HANDLE, UINT32, void *,
+ void **);
+void vald_acpi_libright_get(struct vald_acpi_softc *);
+void vald_acpi_libright_set(struct vald_acpi_softc *, int);
+
+void vald_acpi_video_switch(struct vald_acpi_softc *);
+void vald_acpi_fan_switch(struct vald_acpi_softc *);
+
+ACPI_STATUS vald_acpi_bcm_set(ACPI_HANDLE, UINT32);
+ACPI_STATUS vald_acpi_dssx_set(UINT32);
+
+struct cfattach vald_acpi_ca = {
+ sizeof(struct vald_acpi_softc), vald_acpi_match, vald_acpi_attach,
+};
+
+
+/*
+ * vald_acpi_match:
+ *
+ * Autoconfiguration `match' routine.
+ */
+int
+vald_acpi_match(struct device *parent, struct cfdata *match, void *aux)
+{
+ struct acpi_attach_args *aa = aux;
+
+ if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
+ return (0);
+
+ if (strcmp(aa->aa_node->ad_devinfo.HardwareId, "TOS6200") == 0)
+ return (1);
+
+ return (0);
+}
+
+/*
+ * vald_acpi_attach:
+ *
+ * Autoconfiguration `attach' routine.
+ */
+void
+vald_acpi_attach(struct device *parent, struct device *self, void *aux)
+{
+ struct vald_acpi_softc *sc = (void *) self;
+ struct acpi_attach_args *aa = aux;
+ ACPI_STATUS rv;
+ UINT32 i, value, result;
+
+ printf(": Toshiba VALD\n");
+
+ sc->sc_node = aa->aa_node;
+ sc->sc_timer = 5 * hz;
+
+ /* Initialize input Arg */
+ for (i = 0; i < GHCI_WORDS; i++) {
+ sc->sc_Arg[i].Type = ACPI_TYPE_INTEGER;
+ sc->sc_Arg[i].Integer.Value = 0;
+ }
+
+ /* Get AC adaptor status via _PSR. */
+ rv = acpi_eval_integer(ACPI_ROOT_OBJECT,
+ "\\_SB_.ADP1._PSR",&sc->sc_ac_status);
+ if (rv != AE_OK)
+ printf("%s: Unable to evaluate _PSR error %x\n",
+ sc->sc_dev.dv_xname, rv);
+ else
+ printf("AC adaptor status %sconnected\n",
+ (sc->sc_ac_status == 0 ? "not ": ""));
+
+ /* Get LCD backlight status. */
+ rv = vald_acpi_ghci_get(sc, GHCI_BACKLIGHT, &value, &result);
+ if (rv != AE_OK)
+ printf("%s: Unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
+ if (result != 0)
+ printf("%s: Can't get status of LCD backlight error=%x\n",
+ sc->sc_dev.dv_xname, result);
+ else
+ printf("LCD backlight status %s\n",
+ ((value == GHCI_ON) ? "on" : "off"));
+
+ /* Enable SystemEventFIFO,HotkeyEvent */
+ rv = vald_acpi_ghci_set(sc, GHCI_SYSTEM_EVENT_FIFO, GHCI_ENABLE,
+ &result);
+ if (rv != AE_OK)
+ printf("%s: unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
+ if (result != 0)
+ printf("%s: Can't enable SystemEventFIFO error=%d\n",
+ sc->sc_dev.dv_xname, result);
+
+ rv = vald_acpi_ghci_set(sc, GHCI_HOTKEY_EVENT, GHCI_ENABLE, &result);
+ if (rv != AE_OK)
+ printf("%s: unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
+ if (result != 0)
+ printf("%s: Can't enable HotkeyEvent error=%d\n",
+ sc->sc_dev.dv_xname, result);
+
+ /* Check SystemFIFO events. */
+ vald_acpi_event(sc);
+
+ /*
+ * XXX poll hotkey event in the driver for now.
+ * in the future, when we have an API, let userland do this polling
+ */
+ callout_init(&sc->sc_callout);
+ callout_reset(&sc->sc_callout, sc->sc_timer, vald_acpi_tick, sc);
+
+ /* Get LCD brightness level via _BCL. */
+ vald_acpi_libright_get(sc);
+
+ /* Set LCD brightness level via _BCM. */
+ vald_acpi_libright_set(sc, LIBRIGHT_HOLD);
+
+}
+
+/*
+ * vald_acpi_tick:
+ *
+ * Poll hotkey event.
+ */
+static void
+vald_acpi_tick(void *arg)
+{
+ struct vald_acpi_softc *sc = arg;
+ callout_reset(&sc->sc_callout, sc->sc_timer, vald_acpi_tick, arg);
+ AcpiOsQueueForExecution(OSD_PRIORITY_LO, vald_acpi_event, sc);
+}
+
+/*
+ * vald_acpi_event:
+ *
+ * Check hotkey event and do it, if event occur.
+ */
+void
+vald_acpi_event(void *arg)
+{
+ struct vald_acpi_softc *sc = arg;
+ ACPI_STATUS rv;
+ UINT32 value, result;
+
+ while(1) {
+ rv = vald_acpi_ghci_get(sc, GHCI_SYSTEM_EVENT_FIFO, &value,
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