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hpqlb_acpi.c revision 1.2.4.3
      1 /* $NetBSD: hpqlb_acpi.c,v 1.2.4.3 2010/03/11 15:03:23 yamt 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 1.2.4.3 2010/03/11 15:03:23 yamt Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/device.h>
     34 #include <sys/systm.h>
     35 
     36 #include <machine/pio.h>
     37 
     38 #include <dev/acpi/acpireg.h>
     39 #include <dev/acpi/acpivar.h>
     40 
     41 #include <dev/isa/isareg.h>
     42 
     43 #include <dev/wscons/wsconsio.h>
     44 #include <dev/wscons/wskbdvar.h>
     45 
     46 #define _COMPONENT		ACPI_RESOURCE_COMPONENT
     47 ACPI_MODULE_NAME		("hpqlb_acpi")
     48 
     49 #ifdef HPQLB_DEBUG
     50 #define DPRINTF(x)		do { printf x; } while (/* CONSTCOND */0)
     51 #else
     52 #define DPRINTF(x)
     53 #endif
     54 
     55 struct hpqlb_softc {
     56 	device_t sc_dev;
     57 	struct acpi_devnode *sc_node;
     58 
     59 	device_t sc_wskbddev;
     60 
     61 #define HP_PSW_DISPLAY_CYCLE	0
     62 #define HP_PSW_BRIGHTNESS_UP	1
     63 #define HP_PSW_BRIGHTNESS_DOWN	2
     64 #define HP_PSW_SLEEP		3
     65 #define HP_PSW_LAST		4
     66 	struct sysmon_pswitch sc_smpsw[HP_PSW_LAST];
     67 	bool sc_smpsw_displaycycle_valid;
     68 	bool sc_smpsw_sleep_valid;
     69 };
     70 
     71 #define HP_QLB_Quick			0x88
     72 #define HP_QLB_DVD			0x8e
     73 #define HP_QLB_FullBackward		0x90
     74 #define HP_QLB_Play			0xa2
     75 #define HP_QLB_FullForward		0x99
     76 #define HP_QLB_Stop			0xa4
     77 #define HP_QLB_VolumeMute		0xa0
     78 #define HP_QLB_VolumeDown		0xae
     79 #define HP_QLB_VolumeUp			0xb0
     80 
     81 #define HP_QLB_Help			0xb1
     82 #define HP_QLB_WWW			0xb2
     83 #define HP_QLB_DisplayCycle		/* ??? */
     84 #define HP_QLB_Sleep			0xdf
     85 #define HP_QLB_Lock			0x8a
     86 #define HP_QLB_BrightnessDown		/* ??? */
     87 #define HP_QLB_BrightnessUp		/* ??? */
     88 #define HP_QLB_ChasisOpen		0xe3
     89 
     90 static int hpqlb_match(device_t, cfdata_t, void *);
     91 static void hpqlb_attach(device_t, device_t, void *);
     92 
     93 static int hpqlb_finalize(device_t);
     94 static int hpqlb_hotkey_handler(struct wskbd_softc *, void *, u_int, int);
     95 
     96 static void hpqlb_init(device_t);
     97 static bool hpqlb_resume(device_t, const pmf_qual_t *);
     98 
     99 CFATTACH_DECL_NEW(hpqlb, sizeof(struct hpqlb_softc),
    100     hpqlb_match, hpqlb_attach, NULL, NULL);
    101 
    102 static const char * const hpqlb_ids[] = {
    103 	"HPQ0006",
    104 	"HPQ0007",
    105 	NULL
    106 };
    107 
    108 static int
    109 hpqlb_match(device_t parent, cfdata_t match, void *opaque)
    110 {
    111 	struct acpi_attach_args *aa = opaque;
    112 
    113 	if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
    114 		return 0;
    115 
    116 	return acpi_match_hid(aa->aa_node->ad_devinfo, hpqlb_ids);
    117 }
    118 
    119 static void
    120 hpqlb_attach(device_t parent, device_t self, void *opaque)
    121 {
    122 	struct hpqlb_softc *sc = device_private(self);
    123 	struct acpi_attach_args *aa = opaque;
    124 
    125 	sc->sc_node = aa->aa_node;
    126 	sc->sc_dev = self;
    127 
    128 	aprint_naive("\n");
    129 	aprint_normal(": HP Quick Launch Buttons\n");
    130 
    131 	hpqlb_init(self);
    132 
    133 	if (config_finalize_register(self, hpqlb_finalize) != 0)
    134 		aprint_error_dev(self,
    135 			"WARNING: unable to register hpqlb finalizer\n");
    136 
    137 	sc->sc_smpsw_displaycycle_valid = true;
    138 	sc->sc_smpsw[HP_PSW_DISPLAY_CYCLE].smpsw_name =
    139 	    PSWITCH_HK_DISPLAY_CYCLE;
    140 	sc->sc_smpsw[HP_PSW_DISPLAY_CYCLE].smpsw_type =
    141 	    PSWITCH_TYPE_HOTKEY;
    142 	if (sysmon_pswitch_register(&sc->sc_smpsw[HP_PSW_DISPLAY_CYCLE])) {
    143 		aprint_error_dev(self, "couldn't register with sysmon\n");
    144 		sc->sc_smpsw_displaycycle_valid = false;
    145 	}
    146 
    147 	sc->sc_smpsw_sleep_valid = true;
    148 	sc->sc_smpsw[HP_PSW_SLEEP].smpsw_name = device_xname(self);
    149 	sc->sc_smpsw[HP_PSW_SLEEP].smpsw_type = PSWITCH_TYPE_SLEEP;
    150 	if (sysmon_pswitch_register(&sc->sc_smpsw[HP_PSW_SLEEP])) {
    151 		aprint_error_dev(self, "couldn't register sleep with sysmon\n");
    152 		sc->sc_smpsw_sleep_valid = false;
    153 	}
    154 
    155 	if (!pmf_device_register(self, NULL, hpqlb_resume))
    156 		aprint_error_dev(self, "couldn't establish power handler\n");
    157 }
    158 
    159 static int
    160 hpqlb_hotkey_handler(struct wskbd_softc *wskbd_sc, void *cookie,
    161 		u_int type, int value)
    162 {
    163 	struct hpqlb_softc *sc = cookie;
    164 	int ret = 1;
    165 
    166 	switch (value) {
    167 	case HP_QLB_VolumeMute:
    168 		if (type != WSCONS_EVENT_KEY_DOWN)
    169 			break;
    170 		pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE);
    171 		break;
    172 	case HP_QLB_VolumeDown:
    173 		if (type != WSCONS_EVENT_KEY_DOWN)
    174 			break;
    175 		pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
    176 		break;
    177 	case HP_QLB_VolumeUp:
    178 		if (type != WSCONS_EVENT_KEY_DOWN)
    179 			break;
    180 		pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
    181 		break;
    182 
    183 #if 0
    184 	case HP_QLB_DisplayCycle:		/* ??? */
    185 		if (type != WSCONS_EVENT_KEY_DOWN)
    186 			break;
    187 		if (sc->sc_smpsw_displaycycle_valid == false)
    188 			break;
    189 		sysmon_pswitch_event(&sc->sc_smpsw[HP_PSW_DISPLAY_CYCLE],
    190 			PSWITCH_EVENT_PRESSED);
    191 		break;
    192 #endif
    193 	case HP_QLB_Sleep:
    194 		if (type != WSCONS_EVENT_KEY_DOWN)
    195 			break;
    196 		if (sc->sc_smpsw_sleep_valid == false) {
    197 			DPRINTF(("%s: Sleep hotkey\n",
    198 			    device_xname(sc->sc_dev)));
    199 			break;
    200 		}
    201 		sysmon_pswitch_event(&sc->sc_smpsw[HP_PSW_SLEEP],
    202 			PSWITCH_EVENT_PRESSED);
    203 		break;
    204 #if 0
    205 	case HP_QLB_BrightnessDown:	/* ??? */
    206 		if (type != WSCONS_EVENT_KEY_DOWN)
    207 			break;
    208 		pmf_event_inject(NULL, PMFE_DISPLAY_BRIGHTNESS_DOWN);
    209 		break;
    210 	case HP_QLB_BrightnessUp:	/* ??? */
    211 		if (type != WSCONS_EVENT_KEY_DOWN)
    212 			break;
    213 		pmf_event_inject(NULL, PMFE_DISPLAY_BRIGHTNESS_UP);
    214 		break;
    215 #endif
    216 	case HP_QLB_ChasisOpen:
    217 		if (type != WSCONS_EVENT_KEY_DOWN)
    218 			break;
    219 		pmf_event_inject(NULL, PMFE_CHASSIS_LID_OPEN);
    220 		break;
    221 	default:
    222 		DPRINTF(("%s: unknown hotkey 0x%02x\n",
    223 			device_xname(sc->sc_dev), value));
    224 		ret = 0; /* Assume, this is no hotkey */
    225 		break;
    226 	}
    227 
    228 	return ret;
    229 }
    230 
    231 static void
    232 hpqlb_init(device_t self)
    233 {
    234 
    235 	/* HPQ0006: HP Quick Launch Buttons */
    236 	/* HPQ0007: HP Remote Device */
    237 	/* val 0, 1 or 7 == HPQ0006 */
    238 	/* val not 0, 1 or 7 == HPQ0007 */
    239 
    240 	/* Turn on Quick Launch Buttons */
    241 	outb(IO_RTC+2, 0xaf);
    242 	outb(IO_RTC+3, 7 /* val */);
    243 }
    244 
    245 static int
    246 hpqlb_finalize(device_t self)
    247 {
    248 	device_t dv;
    249 	deviter_t di;
    250 	struct hpqlb_softc *sc = device_private(self);
    251 	static int done_once = 0;
    252 
    253 	/* Since we only handle real hardware, we only need to be
    254 	 * called once.
    255 	 */
    256 	if (done_once)
    257 		return 0;
    258 	done_once = 1;
    259 
    260 	for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); dv != NULL;
    261 	     dv = deviter_next(&di)) {
    262 		if (!device_is_a(dv, "wskbd"))
    263 			continue;
    264 
    265 		/* Make sure, we don't get a wskbd from a USB keyboard.
    266 		 * QLB only works on the wskbd attached on pckbd. */
    267 		if (!device_is_a(device_parent(dv), "pckbd"))
    268 			continue;
    269 
    270 		aprint_normal_dev(self, "registering on %s\n",
    271 				device_xname(dv));
    272 		break;
    273 	}
    274 	deviter_release(&di);
    275 
    276 	if (dv == NULL) {
    277 		aprint_error_dev(self, "WARNING: no matching wskbd found\n");
    278 		return 1;
    279 	}
    280 
    281 	sc->sc_wskbddev = dv;
    282 
    283 	wskbd_hotkey_register(sc->sc_wskbddev, sc, hpqlb_hotkey_handler);
    284 
    285 	return 0;
    286 }
    287 
    288 static bool
    289 hpqlb_resume(device_t self, const pmf_qual_t *qual)
    290 {
    291 
    292 	hpqlb_init(self);
    293 
    294 	return true;
    295 }
    296