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btnmgr.c revision 1.27
      1 /*	$NetBSD: btnmgr.c,v 1.27 2014/03/16 05:20:27 dholland 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 1.27 2014/03/16 05:20:27 dholland 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 	.d_open = btnmgropen,
    105 	.d_close = btnmgrclose,
    106 	.d_read = btnmgrread,
    107 	.d_write = btnmgrwrite,
    108 	.d_ioctl = btnmgrioctl,
    109 	.d_stop = nostop,
    110 	.d_tty = notty,
    111 	.d_poll = nopoll,
    112 	.d_mmap = nommap,
    113 	.d_kqfilter = nokqfilter,
    114 	.d_flag = 0
    115 };
    116 #endif /* notyet */
    117 
    118 /* wskbd accessopts */
    119 int	btnmgr_wskbd_enable(void *, int);
    120 void	btnmgr_wskbd_set_leds(void *, int);
    121 int	btnmgr_wskbd_ioctl(void *, u_long, void *, int, struct lwp *);
    122 
    123 const struct wskbd_accessops btnmgr_wskbd_accessops = {
    124 	btnmgr_wskbd_enable,
    125 	btnmgr_wskbd_set_leds,
    126 	btnmgr_wskbd_ioctl,
    127 };
    128 
    129 /* button config: index by button event id */
    130 static const struct {
    131 	int  kevent;
    132 	int  keycode;
    133 	const char *name;
    134 } button_config[] = {
    135 	/* id					kevent keycode name	*/
    136 	[CONFIG_HOOK_BUTTONEVENT_POWER] =	{ 0,   0, "Power"	},
    137 	[CONFIG_HOOK_BUTTONEVENT_OK] =		{ 1,  28, "OK"		},
    138 	[CONFIG_HOOK_BUTTONEVENT_CANCEL] =	{ 1,   1, "Cancel"	},
    139 	[CONFIG_HOOK_BUTTONEVENT_UP] =		{ 1,  72, "Up"		},
    140 	[CONFIG_HOOK_BUTTONEVENT_DOWN] =	{ 1,  80, "Down"	},
    141 	[CONFIG_HOOK_BUTTONEVENT_REC] =		{ 0,   0, "Rec"		},
    142 	[CONFIG_HOOK_BUTTONEVENT_COVER] =	{ 0,   0, "Cover"	},
    143 	[CONFIG_HOOK_BUTTONEVENT_LIGHT] =	{ 1,  57, "Light"	},
    144 	[CONFIG_HOOK_BUTTONEVENT_CONTRAST] =	{ 0,   0, "Contrast"	},
    145 	[CONFIG_HOOK_BUTTONEVENT_APP0] =	{ 1,  67, "Application 0" },
    146 	[CONFIG_HOOK_BUTTONEVENT_APP1] =	{ 1,  68, "Application 1" },
    147 	[CONFIG_HOOK_BUTTONEVENT_APP2] =	{ 1,  87, "Application 2" },
    148 	[CONFIG_HOOK_BUTTONEVENT_APP3] =	{ 1,  88, "Application 3" },
    149 };
    150 static const int n_button_config =
    151 	sizeof(button_config) / sizeof(*button_config);
    152 
    153 #define KC(n) KS_KEYCODE(n)
    154 static const keysym_t btnmgr_keydesc_default[] = {
    155 /*  pos				normal			shifted		*/
    156 	KC(1), 			KS_Escape,
    157 	KC(28), 			KS_Return,
    158 	KC(57),	KS_Cmd,		KS_Cmd_BacklightToggle,
    159 	KC(67), 			KS_f9,
    160 	KC(68), 			KS_f10,
    161 	KC(72), 			KS_KP_Up,
    162 	KC(80), 			KS_KP_Down,
    163 	KC(87), 			KS_f11,
    164 	KC(88), 			KS_f12,
    165 };
    166 #undef KC
    167 #define KBD_MAP(name, base, map) \
    168 			{ name, base, sizeof(map)/sizeof(keysym_t), map }
    169 const struct wscons_keydesc btnmgr_keydesctab[] = {
    170 	KBD_MAP(KB_US,		0,	btnmgr_keydesc_default),
    171 	{0, 0, 0, 0}
    172 };
    173 #undef KBD_MAP
    174 
    175 struct wskbd_mapdata btnmgr_keymapdata = {
    176 	btnmgr_keydesctab,
    177 	KB_US, /* XXX, This is bad idea... */
    178 };
    179 
    180 /*
    181  *  function bodies
    182  */
    183 int
    184 btnmgrmatch(device_t parent, cfdata_t match, void *aux)
    185 {
    186 	struct mainbus_attach_args *ma = aux;
    187 
    188 	if (strcmp(ma->ma_name, match->cf_name))
    189 		return 0;
    190 
    191 	return (1);
    192 }
    193 
    194 void
    195 btnmgrattach(device_t parent,
    196 	     device_t self, void *aux)
    197 {
    198 	int id;
    199 	struct btnmgr_softc *sc = device_private(self);
    200 	struct wskbddev_attach_args wa;
    201 
    202 	printf("\n");
    203 
    204 	/*
    205 	 * install button event listener
    206 	 */
    207 	for (id = 0; id <= n_button_config; id++)
    208 		if (button_config[id].name != NULL)
    209 			sc->sc_hook_tag = config_hook(CONFIG_HOOK_BUTTONEVENT,
    210 			    id, CONFIG_HOOK_SHARE,
    211 			    btnmgr_hook, sc);
    212 
    213 	/*
    214 	 * attach wskbd
    215 	 */
    216 	wa.console = 0;
    217 	wa.keymap = &btnmgr_keymapdata;
    218 	wa.accessops = &btnmgr_wskbd_accessops;
    219 	wa.accesscookie = sc;
    220 
    221 	sc->sc_wskbddev = config_found(self, &wa, wskbddevprint);
    222 
    223 	if (!pmf_device_register(self, NULL, NULL))
    224 		aprint_error_dev(self, "unable to establish power handler\n");
    225 }
    226 
    227 static int
    228 btnmgr_hook(void *ctx, int type, long id, void *msg)
    229 {
    230 	struct btnmgr_softc *sc = ctx;
    231 
    232 	DPRINTF(("%s button: %s\n", btnmgr_name(id), msg ? "ON" : "OFF"));
    233 
    234 	if (button_config[id].kevent) {
    235 		u_int evtype;
    236 		evtype = msg ? WSCONS_EVENT_KEY_DOWN : WSCONS_EVENT_KEY_UP;
    237 #ifdef WSDISPLAY_COMPAT_RAWKBD
    238 		if (sc->sc_rawkbd) {
    239 			int n;
    240 			u_char data[16];
    241 			n = pckbd_encode(evtype, button_config[id].keycode,
    242 			    data);
    243 			wskbd_rawinput(sc->sc_wskbddev, data, n);
    244 		} else
    245 #endif
    246 			wskbd_input(sc->sc_wskbddev, evtype,
    247 			    button_config[id].keycode);
    248 	}
    249 
    250 	if (id == CONFIG_HOOK_BUTTONEVENT_POWER && msg)
    251 		config_hook_call(CONFIG_HOOK_PMEVENT,
    252 		    CONFIG_HOOK_PMEVENT_SUSPENDREQ, NULL);
    253 	else if (id == CONFIG_HOOK_BUTTONEVENT_COVER)
    254 		config_hook_call(CONFIG_HOOK_POWERCONTROL,
    255 		    CONFIG_HOOK_POWERCONTROL_LCDLIGHT, (void*)(msg ? 0: 1));
    256 
    257 	return (0);
    258 }
    259 
    260 const char *
    261 btnmgr_name(long id)
    262 {
    263 	if (id < n_button_config)
    264 		return (button_config[id].name);
    265 	return ("unknown");
    266 }
    267 
    268 int
    269 btnmgr_wskbd_enable(void *scx, int on)
    270 {
    271 	struct btnmgr_softc *sc = scx;
    272 
    273 	if (on) {
    274 		if (sc->sc_enabled)
    275 			return (EBUSY);
    276 		sc->sc_enabled = 1;
    277 	} else {
    278 		sc->sc_enabled = 0;
    279 	}
    280 
    281 	return (0);
    282 }
    283 
    284 void
    285 btnmgr_wskbd_set_leds(void *scx, int leds)
    286 {
    287 	/*
    288 	 * We have nothing to do.
    289 	 */
    290 }
    291 
    292 int
    293 btnmgr_wskbd_ioctl(void *scx, u_long cmd, void *data, int flag,
    294 		   struct lwp *l)
    295 {
    296 #ifdef WSDISPLAY_COMPAT_RAWKBD
    297 	struct btnmgr_softc *sc = scx;
    298 #endif
    299 	switch (cmd) {
    300 	case WSKBDIO_GTYPE:
    301 		*(int *)data = WSKBD_TYPE_HPC_BTN;
    302 		return (0);
    303 	case WSKBDIO_SETLEDS:
    304 		DPRINTF(("%s(%d): no LED\n", __FILE__, __LINE__));
    305 		return (0);
    306 	case WSKBDIO_GETLEDS:
    307 		DPRINTF(("%s(%d): no LED\n", __FILE__, __LINE__));
    308 		*(int *)data = 0;
    309 		return (0);
    310 #ifdef WSDISPLAY_COMPAT_RAWKBD
    311 	case WSKBDIO_SETMODE:
    312 		sc->sc_rawkbd = (*(int *)data == WSKBD_RAW);
    313 		DPRINTF(("%s(%d): rawkbd is %s\n", __FILE__, __LINE__,
    314 		    sc->sc_rawkbd ? "on" : "off"));
    315 		return (0);
    316 #endif
    317 	}
    318 	return (EPASSTHROUGH);
    319 }
    320 
    321 #ifdef notyet
    322 int
    323 btnmgropen(dev_t dev, int flag, int mode, struct lwp *l)
    324 {
    325 	return (EINVAL);
    326 }
    327 
    328 int
    329 btnmgrclose(dev_t dev, int flag, int mode, struct lwp *l)
    330 {
    331 	return (EINVAL);
    332 }
    333 
    334 int
    335 btnmgrread(dev_t dev, struct uio *uio, int flag)
    336 {
    337 	return (EINVAL);
    338 }
    339 
    340 int
    341 btnmgrwrite(dev_t dev, struct uio *uio, int flag)
    342 {
    343 	return (EINVAL);
    344 }
    345 
    346 int
    347 btnmgrioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
    348 {
    349 	return (EINVAL);
    350 }
    351 #endif /* notyet */
    352