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hpqlb_acpi.c revision 1.5
      1 /* $NetBSD: hpqlb_acpi.c,v 1.5 2010/01/30 18:35:49 jruoho Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2008  Christoph Egger <cegger (at) netbsd.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: hpqlb_acpi.c,v 1.5 2010/01/30 18:35:49 jruoho Exp $");
     31 
     32 #include <sys/types.h>
     33 #include <sys/param.h>
     34 #include <sys/malloc.h>
     35 #include <sys/buf.h>
     36 #include <sys/callout.h>
     37 #include <sys/kernel.h>
     38 #include <sys/device.h>
     39 #include <sys/pmf.h>
     40 
     41 #include <dev/acpi/acpireg.h>
     42 #include <dev/acpi/acpivar.h>
     43 
     44 #include <machine/pio.h>
     45 #include <dev/wscons/wsconsio.h>
     46 #include <dev/wscons/wskbdvar.h>
     47 #include <dev/isa/isareg.h>
     48 
     49 #define _COMPONENT		ACPI_RESOURCE_COMPONENT
     50 ACPI_MODULE_NAME		("hpqlb_acpi")
     51 
     52 #ifdef HPQLB_DEBUG
     53 #define DPRINTF(x)		do { printf x; } while (/* CONSTCOND */0)
     54 #else
     55 #define DPRINTF(x)
     56 #endif
     57 
     58 struct hpqlb_softc {
     59 	device_t sc_dev;
     60 	struct acpi_devnode *sc_node;
     61 
     62 	device_t sc_wskbddev;
     63 
     64 #define HP_PSW_DISPLAY_CYCLE	0
     65 #define HP_PSW_BRIGHTNESS_UP	1
     66 #define HP_PSW_BRIGHTNESS_DOWN	2
     67 #define HP_PSW_SLEEP		3
     68 #define HP_PSW_LAST		4
     69 	struct sysmon_pswitch sc_smpsw[HP_PSW_LAST];
     70 	bool sc_smpsw_displaycycle_valid;
     71 	bool sc_smpsw_sleep_valid;
     72 };
     73 
     74 #define HP_QLB_Quick			0x88
     75 #define HP_QLB_DVD			0x8e
     76 #define HP_QLB_FullBackward		0x90
     77 #define HP_QLB_Play			0xa2
     78 #define HP_QLB_FullForward		0x99
     79 #define HP_QLB_Stop			0xa4
     80 #define HP_QLB_VolumeMute		0xa0
     81 #define HP_QLB_VolumeDown		0xae
     82 #define HP_QLB_VolumeUp			0xb0
     83 
     84 #define HP_QLB_Help			0xb1
     85 #define HP_QLB_WWW			0xb2
     86 #define HP_QLB_DisplayCycle		/* ??? */
     87 #define HP_QLB_Sleep			0xdf
     88 #define HP_QLB_Lock			0x8a
     89 #define HP_QLB_BrightnessDown		/* ??? */
     90 #define HP_QLB_BrightnessUp		/* ??? */
     91 #define HP_QLB_ChasisOpen		0xe3
     92 
     93 static int hpqlb_match(device_t, cfdata_t, void *);
     94 static void hpqlb_attach(device_t, device_t, void *);
     95 
     96 static int hpqlb_finalize(device_t);
     97 static int hpqlb_hotkey_handler(struct wskbd_softc *, void *, u_int, int);
     98 
     99 static void hpqlb_init(device_t);
    100 static bool hpqlb_resume(device_t, pmf_qual_t);
    101 
    102 CFATTACH_DECL_NEW(hpqlb, sizeof(struct hpqlb_softc),
    103     hpqlb_match, hpqlb_attach, NULL, NULL);
    104 
    105 static const char * const hpqlb_ids[] = {
    106 	"HPQ0006",
    107 	"HPQ0007",
    108 	NULL
    109 };
    110 
    111 static int
    112 hpqlb_match(device_t parent, cfdata_t match, void *opaque)
    113 {
    114 	struct acpi_attach_args *aa = opaque;
    115 
    116 	if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
    117 		return 0;
    118 
    119 	return acpi_match_hid(aa->aa_node->ad_devinfo, hpqlb_ids);
    120 }
    121 
    122 static void
    123 hpqlb_attach(device_t parent, device_t self, void *opaque)
    124 {
    125 	struct hpqlb_softc *sc = device_private(self);
    126 	struct acpi_attach_args *aa = opaque;
    127 
    128 	sc->sc_node = aa->aa_node;
    129 	sc->sc_dev = self;
    130 
    131 	aprint_naive("\n");
    132 	aprint_normal(": HP Quick Launch Buttons\n");
    133 
    134 	hpqlb_init(self);
    135 
    136 	if (config_finalize_register(self, hpqlb_finalize) != 0)
    137 		aprint_error_dev(self,
    138 			"WARNING: unable to register hpqlb finalizer\n");
    139 
    140 	sc->sc_smpsw_displaycycle_valid = true;
    141 	sc->sc_smpsw[HP_PSW_DISPLAY_CYCLE].smpsw_name =
    142 	    PSWITCH_HK_DISPLAY_CYCLE;
    143 	sc->sc_smpsw[HP_PSW_DISPLAY_CYCLE].smpsw_type =
    144 	    PSWITCH_TYPE_HOTKEY;
    145 	if (sysmon_pswitch_register(&sc->sc_smpsw[HP_PSW_DISPLAY_CYCLE])) {
    146 		aprint_error_dev(self, "couldn't register with sysmon\n");
    147 		sc->sc_smpsw_displaycycle_valid = false;
    148 	}
    149 
    150 	sc->sc_smpsw_sleep_valid = true;
    151 	sc->sc_smpsw[HP_PSW_SLEEP].smpsw_name = device_xname(self);
    152 	sc->sc_smpsw[HP_PSW_SLEEP].smpsw_type = PSWITCH_TYPE_SLEEP;
    153 	if (sysmon_pswitch_register(&sc->sc_smpsw[HP_PSW_SLEEP])) {
    154 		aprint_error_dev(self, "couldn't register sleep with sysmon\n");
    155 		sc->sc_smpsw_sleep_valid = false;
    156 	}
    157 
    158 	if (!pmf_device_register(self, NULL, hpqlb_resume))
    159 		aprint_error_dev(self, "couldn't establish power handler\n");
    160 }
    161 
    162 static int
    163 hpqlb_hotkey_handler(struct wskbd_softc *wskbd_sc, void *cookie,
    164 		u_int type, int value)
    165 {
    166 	struct hpqlb_softc *sc = cookie;
    167 	int ret = 1;
    168 
    169 	switch (value) {
    170 	case HP_QLB_VolumeMute:
    171 		if (type != WSCONS_EVENT_KEY_DOWN)
    172 			break;
    173 		pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE);
    174 		break;
    175 	case HP_QLB_VolumeDown:
    176 		if (type != WSCONS_EVENT_KEY_DOWN)
    177 			break;
    178 		pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
    179 		break;
    180 	case HP_QLB_VolumeUp:
    181 		if (type != WSCONS_EVENT_KEY_DOWN)
    182 			break;
    183 		pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
    184 		break;
    185 
    186 #if 0
    187 	case HP_QLB_DisplayCycle:		/* ??? */
    188 		if (type != WSCONS_EVENT_KEY_DOWN)
    189 			break;
    190 		if (sc->sc_smpsw_displaycycle_valid == false)
    191 			break;
    192 		sysmon_pswitch_event(&sc->sc_smpsw[HP_PSW_DISPLAY_CYCLE],
    193 			PSWITCH_EVENT_PRESSED);
    194 		break;
    195 #endif
    196 	case HP_QLB_Sleep:
    197 		if (type != WSCONS_EVENT_KEY_DOWN)
    198 			break;
    199 		if (sc->sc_smpsw_sleep_valid == false) {
    200 			DPRINTF(("%s: Sleep hotkey\n",
    201 			    device_xname(sc->sc_dev)));
    202 			break;
    203 		}
    204 		sysmon_pswitch_event(&sc->sc_smpsw[HP_PSW_SLEEP],
    205 			PSWITCH_EVENT_PRESSED);
    206 		break;
    207 #if 0
    208 	case HP_QLB_BrightnessDown:	/* ??? */
    209 		if (type != WSCONS_EVENT_KEY_DOWN)
    210 			break;
    211 		pmf_event_inject(NULL, PMFE_DISPLAY_BRIGHTNESS_DOWN);
    212 		break;
    213 	case HP_QLB_BrightnessUp:	/* ??? */
    214 		if (type != WSCONS_EVENT_KEY_DOWN)
    215 			break;
    216 		pmf_event_inject(NULL, PMFE_DISPLAY_BRIGHTNESS_UP);
    217 		break;
    218 #endif
    219 	case HP_QLB_ChasisOpen:
    220 		if (type != WSCONS_EVENT_KEY_DOWN)
    221 			break;
    222 		pmf_event_inject(NULL, PMFE_CHASSIS_LID_OPEN);
    223 		break;
    224 	default:
    225 		DPRINTF(("%s: unknown hotkey 0x%02x\n",
    226 			device_xname(sc->sc_dev), value));
    227 		ret = 0; /* Assume, this is no hotkey */
    228 		break;
    229 	}
    230 
    231 	return ret;
    232 }
    233 
    234 static void
    235 hpqlb_init(device_t self)
    236 {
    237 
    238 	/* HPQ0006: HP Quick Launch Buttons */
    239 	/* HPQ0007: HP Remote Device */
    240 	/* val 0, 1 or 7 == HPQ0006 */
    241 	/* val not 0, 1 or 7 == HPQ0007 */
    242 
    243 	/* Turn on Quick Launch Buttons */
    244 	outb(IO_RTC+2, 0xaf);
    245 	outb(IO_RTC+3, 7 /* val */);
    246 }
    247 
    248 static int
    249 hpqlb_finalize(device_t self)
    250 {
    251 	device_t dv;
    252 	deviter_t di;
    253 	struct hpqlb_softc *sc = device_private(self);
    254 	static int done_once = 0;
    255 
    256 	/* Since we only handle real hardware, we only need to be
    257 	 * called once.
    258 	 */
    259 	if (done_once)
    260 		return 0;
    261 	done_once = 1;
    262 
    263 	for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); dv != NULL;
    264 	     dv = deviter_next(&di)) {
    265 		if (!device_is_a(dv, "wskbd"))
    266 			continue;
    267 
    268 		/* Make sure, we don't get a wskbd from a USB keyboard.
    269 		 * QLB only works on the wskbd attached on pckbd. */
    270 		if (!device_is_a(device_parent(dv), "pckbd"))
    271 			continue;
    272 
    273 		aprint_normal_dev(self, "registering on %s\n",
    274 				device_xname(dv));
    275 		break;
    276 	}
    277 	deviter_release(&di);
    278 
    279 	if (dv == NULL) {
    280 		aprint_error_dev(self, "WARNING: no matching wskbd found\n");
    281 		return 1;
    282 	}
    283 
    284 	sc->sc_wskbddev = dv;
    285 
    286 	wskbd_hotkey_register(sc->sc_wskbddev, sc, hpqlb_hotkey_handler);
    287 
    288 	return 0;
    289 }
    290 
    291 static bool
    292 hpqlb_resume(device_t self, pmf_qual_t qual)
    293 {
    294 
    295 	hpqlb_init(self);
    296 
    297 	return true;
    298 }
    299