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btnmgr.c revision 1.26
      1 /*	$NetBSD: btnmgr.c,v 1.26 2012/10/27 17:18:17 chs Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999
      5  *         Shin Takemura and PocketBSD Project. 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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the PocketBSD project
     18  *	and its contributors.
     19  * 4. Neither the name of the project nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  */
     36 
     37 #include <sys/cdefs.h>
     38 __KERNEL_RCSID(0, "$NetBSD: btnmgr.c,v 1.26 2012/10/27 17:18:17 chs Exp $");
     39 
     40 #ifdef _KERNEL_OPT
     41 #include "opt_btnmgr.h"
     42 #include "opt_wsdisplay_compat.h"
     43 #endif
     44 
     45 #include <sys/param.h>
     46 #include <sys/systm.h>
     47 #include <sys/ioctl.h>
     48 #include <sys/conf.h>
     49 #include <sys/device.h>
     50 #include <sys/malloc.h>
     51 #include <sys/kernel.h>
     52 
     53 #include <dev/wscons/wsconsio.h>
     54 #include <dev/wscons/wskbdvar.h>
     55 #include <dev/wscons/wsksymdef.h>
     56 #ifdef WSDISPLAY_COMPAT_RAWKBD
     57 #include <dev/hpc/pckbd_encode.h>
     58 #endif
     59 
     60 #include <sys/bus.h>
     61 #include <machine/autoconf.h>
     62 #include <machine/config_hook.h>
     63 
     64 #ifdef BTNMGRDEBUG
     65 #ifndef BTNMGRDEBUG_CONF
     66 #define BTNMGRDEBUG_CONF 0
     67 #endif
     68 int	btnmgr_debug = BTNMGRDEBUG_CONF;
     69 #define	DPRINTF(arg) if (btnmgr_debug) printf arg;
     70 #define	DPRINTFN(n, arg) if (btnmgr_debug > (n)) printf arg;
     71 #else
     72 #define	DPRINTF(arg)
     73 #define DPRINTFN(n, arg)
     74 #endif
     75 
     76 struct btnmgr_softc {
     77 	config_hook_tag	sc_hook_tag;
     78 	int sc_enabled;
     79 	device_t sc_wskbddev;
     80 #ifdef WSDISPLAY_COMPAT_RAWKBD
     81 	int sc_rawkbd;
     82 #endif
     83 };
     84 
     85 int btnmgrmatch(device_t, cfdata_t, void *);
     86 void btnmgrattach(device_t, device_t, void *);
     87 const char *btnmgr_name(long);
     88 static int btnmgr_hook(void *, int, long, void *);
     89 
     90 /*
     91  * global/static data
     92  */
     93 CFATTACH_DECL_NEW(btnmgr, sizeof(struct btnmgr_softc),
     94     btnmgrmatch, btnmgrattach, NULL, NULL);
     95 
     96 #ifdef notyet
     97 dev_type_open(btnmgropen);
     98 dev_type_close(btnmgrclose);
     99 dev_type_read(btnmgrread);
    100 dev_type_write(btnmgrwrite);
    101 dev_type_ioctl(btnmgrioctl);
    102 
    103 const struct cdevsw btnmgr_cdevsw = {
    104 	btnmgropen, btnmgrclose, btnmgrread, btnmgrwrite, btnmgrioctl,
    105 	nostop, notty, nopoll, nommap, nokqfilter,
    106 };
    107 #endif /* notyet */
    108 
    109 /* wskbd accessopts */
    110 int	btnmgr_wskbd_enable(void *, int);
    111 void	btnmgr_wskbd_set_leds(void *, int);
    112 int	btnmgr_wskbd_ioctl(void *, u_long, void *, int, struct lwp *);
    113 
    114 const struct wskbd_accessops btnmgr_wskbd_accessops = {
    115 	btnmgr_wskbd_enable,
    116 	btnmgr_wskbd_set_leds,
    117 	btnmgr_wskbd_ioctl,
    118 };
    119 
    120 /* button config: index by button event id */
    121 static const struct {
    122 	int  kevent;
    123 	int  keycode;
    124 	const char *name;
    125 } button_config[] = {
    126 	/* id					kevent keycode name	*/
    127 	[CONFIG_HOOK_BUTTONEVENT_POWER] =	{ 0,   0, "Power"	},
    128 	[CONFIG_HOOK_BUTTONEVENT_OK] =		{ 1,  28, "OK"		},
    129 	[CONFIG_HOOK_BUTTONEVENT_CANCEL] =	{ 1,   1, "Cancel"	},
    130 	[CONFIG_HOOK_BUTTONEVENT_UP] =		{ 1,  72, "Up"		},
    131 	[CONFIG_HOOK_BUTTONEVENT_DOWN] =	{ 1,  80, "Down"	},
    132 	[CONFIG_HOOK_BUTTONEVENT_REC] =		{ 0,   0, "Rec"		},
    133 	[CONFIG_HOOK_BUTTONEVENT_COVER] =	{ 0,   0, "Cover"	},
    134 	[CONFIG_HOOK_BUTTONEVENT_LIGHT] =	{ 1,  57, "Light"	},
    135 	[CONFIG_HOOK_BUTTONEVENT_CONTRAST] =	{ 0,   0, "Contrast"	},
    136 	[CONFIG_HOOK_BUTTONEVENT_APP0] =	{ 1,  67, "Application 0" },
    137 	[CONFIG_HOOK_BUTTONEVENT_APP1] =	{ 1,  68, "Application 1" },
    138 	[CONFIG_HOOK_BUTTONEVENT_APP2] =	{ 1,  87, "Application 2" },
    139 	[CONFIG_HOOK_BUTTONEVENT_APP3] =	{ 1,  88, "Application 3" },
    140 };
    141 static const int n_button_config =
    142 	sizeof(button_config) / sizeof(*button_config);
    143 
    144 #define KC(n) KS_KEYCODE(n)
    145 static const keysym_t btnmgr_keydesc_default[] = {
    146 /*  pos				normal			shifted		*/
    147 	KC(1), 			KS_Escape,
    148 	KC(28), 			KS_Return,
    149 	KC(57),	KS_Cmd,		KS_Cmd_BacklightToggle,
    150 	KC(67), 			KS_f9,
    151 	KC(68), 			KS_f10,
    152 	KC(72), 			KS_KP_Up,
    153 	KC(80), 			KS_KP_Down,
    154 	KC(87), 			KS_f11,
    155 	KC(88), 			KS_f12,
    156 };
    157 #undef KC
    158 #define KBD_MAP(name, base, map) \
    159 			{ name, base, sizeof(map)/sizeof(keysym_t), map }
    160 const struct wscons_keydesc btnmgr_keydesctab[] = {
    161 	KBD_MAP(KB_US,		0,	btnmgr_keydesc_default),
    162 	{0, 0, 0, 0}
    163 };
    164 #undef KBD_MAP
    165 
    166 struct wskbd_mapdata btnmgr_keymapdata = {
    167 	btnmgr_keydesctab,
    168 	KB_US, /* XXX, This is bad idea... */
    169 };
    170 
    171 /*
    172  *  function bodies
    173  */
    174 int
    175 btnmgrmatch(device_t parent, cfdata_t match, void *aux)
    176 {
    177 	struct mainbus_attach_args *ma = aux;
    178 
    179 	if (strcmp(ma->ma_name, match->cf_name))
    180 		return 0;
    181 
    182 	return (1);
    183 }
    184 
    185 void
    186 btnmgrattach(device_t parent,
    187 	     device_t self, void *aux)
    188 {
    189 	int id;
    190 	struct btnmgr_softc *sc = device_private(self);
    191 	struct wskbddev_attach_args wa;
    192 
    193 	printf("\n");
    194 
    195 	/*
    196 	 * install button event listener
    197 	 */
    198 	for (id = 0; id <= n_button_config; id++)
    199 		if (button_config[id].name != NULL)
    200 			sc->sc_hook_tag = config_hook(CONFIG_HOOK_BUTTONEVENT,
    201 			    id, CONFIG_HOOK_SHARE,
    202 			    btnmgr_hook, sc);
    203 
    204 	/*
    205 	 * attach wskbd
    206 	 */
    207 	wa.console = 0;
    208 	wa.keymap = &btnmgr_keymapdata;
    209 	wa.accessops = &btnmgr_wskbd_accessops;
    210 	wa.accesscookie = sc;
    211 
    212 	sc->sc_wskbddev = config_found(self, &wa, wskbddevprint);
    213 
    214 	if (!pmf_device_register(self, NULL, NULL))
    215 		aprint_error_dev(self, "unable to establish power handler\n");
    216 }
    217 
    218 static int
    219 btnmgr_hook(void *ctx, int type, long id, void *msg)
    220 {
    221 	struct btnmgr_softc *sc = ctx;
    222 
    223 	DPRINTF(("%s button: %s\n", btnmgr_name(id), msg ? "ON" : "OFF"));
    224 
    225 	if (button_config[id].kevent) {
    226 		u_int evtype;
    227 		evtype = msg ? WSCONS_EVENT_KEY_DOWN : WSCONS_EVENT_KEY_UP;
    228 #ifdef WSDISPLAY_COMPAT_RAWKBD
    229 		if (sc->sc_rawkbd) {
    230 			int n;
    231 			u_char data[16];
    232 			n = pckbd_encode(evtype, button_config[id].keycode,
    233 			    data);
    234 			wskbd_rawinput(sc->sc_wskbddev, data, n);
    235 		} else
    236 #endif
    237 			wskbd_input(sc->sc_wskbddev, evtype,
    238 			    button_config[id].keycode);
    239 	}
    240 
    241 	if (id == CONFIG_HOOK_BUTTONEVENT_POWER && msg)
    242 		config_hook_call(CONFIG_HOOK_PMEVENT,
    243 		    CONFIG_HOOK_PMEVENT_SUSPENDREQ, NULL);
    244 	else if (id == CONFIG_HOOK_BUTTONEVENT_COVER)
    245 		config_hook_call(CONFIG_HOOK_POWERCONTROL,
    246 		    CONFIG_HOOK_POWERCONTROL_LCDLIGHT, (void*)(msg ? 0: 1));
    247 
    248 	return (0);
    249 }
    250 
    251 const char *
    252 btnmgr_name(long id)
    253 {
    254 	if (id < n_button_config)
    255 		return (button_config[id].name);
    256 	return ("unknown");
    257 }
    258 
    259 int
    260 btnmgr_wskbd_enable(void *scx, int on)
    261 {
    262 	struct btnmgr_softc *sc = scx;
    263 
    264 	if (on) {
    265 		if (sc->sc_enabled)
    266 			return (EBUSY);
    267 		sc->sc_enabled = 1;
    268 	} else {
    269 		sc->sc_enabled = 0;
    270 	}
    271 
    272 	return (0);
    273 }
    274 
    275 void
    276 btnmgr_wskbd_set_leds(void *scx, int leds)
    277 {
    278 	/*
    279 	 * We have nothing to do.
    280 	 */
    281 }
    282 
    283 int
    284 btnmgr_wskbd_ioctl(void *scx, u_long cmd, void *data, int flag,
    285 		   struct lwp *l)
    286 {
    287 #ifdef WSDISPLAY_COMPAT_RAWKBD
    288 	struct btnmgr_softc *sc = scx;
    289 #endif
    290 	switch (cmd) {
    291 	case WSKBDIO_GTYPE:
    292 		*(int *)data = WSKBD_TYPE_HPC_BTN;
    293 		return (0);
    294 	case WSKBDIO_SETLEDS:
    295 		DPRINTF(("%s(%d): no LED\n", __FILE__, __LINE__));
    296 		return (0);
    297 	case WSKBDIO_GETLEDS:
    298 		DPRINTF(("%s(%d): no LED\n", __FILE__, __LINE__));
    299 		*(int *)data = 0;
    300 		return (0);
    301 #ifdef WSDISPLAY_COMPAT_RAWKBD
    302 	case WSKBDIO_SETMODE:
    303 		sc->sc_rawkbd = (*(int *)data == WSKBD_RAW);
    304 		DPRINTF(("%s(%d): rawkbd is %s\n", __FILE__, __LINE__,
    305 		    sc->sc_rawkbd ? "on" : "off"));
    306 		return (0);
    307 #endif
    308 	}
    309 	return (EPASSTHROUGH);
    310 }
    311 
    312 #ifdef notyet
    313 int
    314 btnmgropen(dev_t dev, int flag, int mode, struct lwp *l)
    315 {
    316 	return (EINVAL);
    317 }
    318 
    319 int
    320 btnmgrclose(dev_t dev, int flag, int mode, struct lwp *l)
    321 {
    322 	return (EINVAL);
    323 }
    324 
    325 int
    326 btnmgrread(dev_t dev, struct uio *uio, int flag)
    327 {
    328 	return (EINVAL);
    329 }
    330 
    331 int
    332 btnmgrwrite(dev_t dev, struct uio *uio, int flag)
    333 {
    334 	return (EINVAL);
    335 }
    336 
    337 int
    338 btnmgrioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
    339 {
    340 	return (EINVAL);
    341 }
    342 #endif /* notyet */
    343