/* $OpenBSD: btkbd.c,v 1.2 2007/09/01 17:06:26 xsa Exp $ */ /* $NetBSD: btkbd.c,v 1.7 2007/07/09 21:00:31 ad Exp $ */ /*- * Copyright (c) 2006 Itronix Inc. * All rights reserved. * * Written by Iain Hibbert for Itronix Inc. * * 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. The name of Itronix Inc. may not be used to endorse * or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY ITRONIX 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 ITRONIX 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. */ /* * based on dev/usb/ukbd.c */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define MAXKEYCODE 6 #define MAXMOD 8 /* max 32 */ #define MAXKEYS (MAXMOD + (2 * MAXKEYCODE)) struct btkbd_data { uint32_t modifiers; uint8_t keycode[MAXKEYCODE]; }; struct btkbd_mod { uint32_t mask; uint8_t key; }; struct btkbd_softc { struct bthidev sc_hidev; /* device+ */ struct device *sc_wskbd; /* child */ int sc_enabled; int (*sc_output) /* output method */ (struct bthidev *, uint8_t *, int); /* stored data */ struct btkbd_data sc_odata; struct btkbd_data sc_ndata; /* input reports */ int sc_nmod; struct hid_location sc_modloc[MAXMOD]; struct btkbd_mod sc_mods[MAXMOD]; int sc_nkeycode; struct hid_location sc_keycodeloc; /* output reports */ struct hid_location sc_numloc; struct hid_location sc_capsloc; struct hid_location sc_scroloc; int sc_leds; #ifdef WSDISPLAY_COMPAT_RAWKBD int sc_rawkbd; #ifdef BTKBD_REPEAT struct timeout sc_repeat; int sc_nrep; char sc_rep[MAXKEYS]; #endif #endif }; int btkbd_match(struct device *, void *, void *); void btkbd_attach(struct device *, struct device *, void *); int btkbd_detach(struct device *, int); struct cfdriver btkbd_cd = { NULL, "btkbd", DV_DULL }; const struct cfattach btkbd_ca = { sizeof(struct btkbd_softc), btkbd_match, btkbd_attach, btkbd_detach, }; int btkbd_enable(void *, int); void btkbd_set_leds(void *, int); int btkbd_ioctl(void *, u_long, caddr_t, int, struct proc *); const struct wskbd_accessops btkbd_accessops = { btkbd_enable, btkbd_set_leds, btkbd_ioctl }; /* wskbd(4) keymap data */ extern const struct wscons_keydesc ukbd_keydesctab[]; const struct wskbd_mapdata btkbd_keymapdata = { ukbd_keydesctab, #if defined(BTKBD_LAYOUT) BTKBD_LAYOUT, #elif defined(PCKBD_LAYOUT) PCKBD_LAYOUT, #else KB_US, #endif }; /* bthid methods */ void btkbd_input(struct bthidev *, uint8_t *, int); /* internal prototypes */ const char *btkbd_parse_desc(struct btkbd_softc *, int, void *, int); #ifdef WSDISPLAY_COMPAT_RAWKBD #ifdef BTKBD_REPEAT void btkbd_repeat(void *); #endif #endif int btkbd_match(struct device *self, void *match, void *aux) { struct bthidev_attach_args *ba = aux; if (hid_is_collection(ba->ba_desc, ba->ba_dlen, ba->ba_id, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_KEYBOARD))) return 1; return 0; } void btkbd_attach(struct device *parent, struct device *self, void *aux) { struct btkbd_softc *sc = (struct btkbd_softc *)self; struct bthidev_attach_args *ba = aux; struct wskbddev_attach_args wska; const char *parserr; sc->sc_output = ba->ba_output; ba->ba_input = btkbd_input; parserr = btkbd_parse_desc(sc, ba->ba_id, ba->ba_desc, ba->ba_dlen); if (parserr != NULL) { printf("%s\n", parserr); return; } printf("\n"); #ifdef WSDISPLAY_COMPAT_RAWKBD #ifdef BTKBD_REPEAT timeout_set(&sc->sc_repeat, NULL, NULL); /* callout_setfunc(&sc->sc_repeat, btkbd_repeat, sc); */ #endif #endif wska.console = 0; wska.keymap = &btkbd_keymapdata; wska.accessops = &btkbd_accessops; wska.accesscookie = sc; sc->sc_wskbd = config_found((struct device *)sc, &wska, wskbddevprint); } int btkbd_detach(struct device *self, int flags) { struct btkbd_softc *sc = (struct btkbd_softc *)self; int err = 0; #ifdef WSDISPLAY_COMPAT_RAWKBD #ifdef BTKBD_REPEAT timeout_del(&sc->sc_repeat); #endif #endif if (sc->sc_wskbd != NULL) { err = config_detach(sc->sc_wskbd, flags); sc->sc_wskbd = NULL; } return err; } const char * btkbd_parse_desc(struct btkbd_softc *sc, int id, void *desc, int dlen) { struct hid_data *d; struct hid_item h; int imod; imod = 0; sc->sc_nkeycode = 0; d = hid_start_parse(desc, dlen, hid_input); while (hid_get_item(d, &h)) { if (h.kind != hid_input || (h.flags & HIO_CONST) || HID_GET_USAGE_PAGE(h.usage) != HUP_KEYBOARD || h.report_ID != id) continue; if (h.flags & HIO_VARIABLE) { if (h.loc.size != 1) return ("bad modifier size"); /* Single item */ if (imod < MAXMOD) { sc->sc_modloc[imod] = h.loc; sc->sc_mods[imod].mask = 1 << imod; sc->sc_mods[imod].key = HID_GET_USAGE(h.usage); imod++; } else return ("too many modifier keys"); } else { /* Array */ if (h.loc.size != 8) return ("key code size != 8"); if (h.loc.count > MAXKEYCODE) return ("too many key codes"); if (h.loc.pos % 8 != 0) return ("key codes not on byte boundary"); if (sc->sc_nkeycode != 0) return ("multiple key code arrays\n"); sc->sc_keycodeloc = h.loc; sc->sc_nkeycode = h.loc.count; } } sc->sc_nmod = imod; hid_end_parse(d); hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_NUM_LOCK), id, hid_output, &sc->sc_numloc, NULL); hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_CAPS_LOCK), id, hid_output, &sc->sc_capsloc, NULL); hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_SCROLL_LOCK), id, hid_output, &sc->sc_scroloc, NULL); return (NULL); } int btkbd_enable(void *self, int on) { struct btkbd_softc *sc = (struct btkbd_softc *)self; sc->sc_enabled = on; return 0; } void btkbd_set_leds(void *self, int leds) { struct btkbd_softc *sc = (struct btkbd_softc *)self; uint8_t report; if (sc->sc_leds == leds) return; sc->sc_leds = leds; /* * This is not totally correct, since we did not check the * report size from the descriptor but for keyboards it should * just be a single byte with the relevant bits set. */ report = 0; if ((leds & WSKBD_LED_SCROLL) && sc->sc_scroloc.size == 1) report |= 1 << sc->sc_scroloc.pos; if ((leds & WSKBD_LED_NUM) && sc->sc_numloc.size == 1) report |= 1 << sc->sc_numloc.pos; if ((leds & WSKBD_LED_CAPS) && sc->sc_capsloc.size == 1) report |= 1 << sc->sc_capsloc.pos; if (sc->sc_output) (*sc->sc_output)(&sc->sc_hidev, &report, sizeof(report)); } int btkbd_ioctl(void *self, u_long cmd, caddr_t data, int flag, struct proc *p) { struct btkbd_softc *sc = (struct btkbd_softc *)self; switch (cmd) { case WSKBDIO_GTYPE: *(int *)data = WSKBD_TYPE_BLUETOOTH; return 0; case WSKBDIO_SETLEDS: btkbd_set_leds(sc, *(int *)data); return 0; case WSKBDIO_GETLEDS: *(int *)data = sc->sc_leds; return 0; #ifdef WSDISPLAY_COMPAT_RAWKBD case WSKBDIO_SETMODE: sc->sc_rawkbd = (*(int *)data == WSKBD_RAW); #ifdef BTKBD_REPEAT timeout_del(&sc->sc_repeat); #endif return 0; #endif } return -1; } #ifdef WSDISPLAY_COMPAT_RAWKBD #define NN 0 /* no translation */ /* * Translate USB keycodes to US keyboard XT scancodes. * Scancodes >= 0x80 represent EXTENDED keycodes. * * See http://www.microsoft.com/HWDEV/TECH/input/Scancode.asp */ const u_int8_t btkbd_trtab[256] = { NN, NN, NN, NN, 0x1e, 0x30, 0x2e, 0x20, /* 00 - 07 */ 0x12, 0x21, 0x22, 0x23, 0x17, 0x24, 0x25, 0x26, /* 08 - 0f */ 0x32, 0x31, 0x18, 0x19, 0x10, 0x13, 0x1f, 0x14, /* 10 - 17 */ 0x16, 0x2f, 0x11, 0x2d, 0x15, 0x2c, 0x02, 0x03, /* 18 - 1f */ 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, /* 20 - 27 */ 0x1c, 0x01, 0x0e, 0x0f, 0x39, 0x0c, 0x0d, 0x1a, /* 28 - 2f */ 0x1b, 0x2b, 0x2b, 0x27, 0x28, 0x29, 0x33, 0x34, /* 30 - 37 */ 0x35, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, /* 38 - 3f */ 0x41, 0x42, 0x43, 0x44, 0x57, 0x58, 0xaa, 0x46, /* 40 - 47 */ 0x7f, 0xd2, 0xc7, 0xc9, 0xd3, 0xcf, 0xd1, 0xcd, /* 48 - 4f */ 0xcb, 0xd0, 0xc8, 0x45, 0xb5, 0x37, 0x4a, 0x4e, /* 50 - 57 */ 0x9c, 0x4f, 0x50, 0x51, 0x4b, 0x4c, 0x4d, 0x47, /* 58 - 5f */ 0x48, 0x49, 0x52, 0x53, 0x56, 0xdd, NN, 0x59, /* 60 - 67 */ 0x5d, 0x5e, 0x5f, NN, NN, NN, NN, NN, /* 68 - 6f */ NN, NN, NN, NN, NN, NN, NN, NN, /* 70 - 77 */ NN, NN, NN, NN, NN, NN, NN, NN, /* 78 - 7f */ NN, NN, NN, NN, NN, 0x7e, NN, 0x73, /* 80 - 87 */ 0x70, 0x7d, 0x79, 0x7b, 0x5c, NN, NN, NN, /* 88 - 8f */ NN, NN, 0x78, 0x77, 0x76, NN, NN, NN, /* 90 - 97 */ NN, NN, NN, NN, NN, NN, NN, NN, /* 98 - 9f */ NN, NN, NN, NN, NN, NN, NN, NN, /* a0 - a7 */ NN, NN, NN, NN, NN, NN, NN, NN, /* a8 - af */ NN, NN, NN, NN, NN, NN, NN, NN, /* b0 - b7 */ NN, NN, NN, NN, NN, NN, NN, NN, /* b8 - bf */ NN, NN, NN, NN, NN, NN, NN, NN, /* c0 - c7 */ NN, NN, NN, NN, NN, NN, NN, NN, /* c8 - cf */ NN, NN, NN, NN, NN, NN, NN, NN, /* d0 - d7 */ NN, NN, NN, NN, NN, NN, NN, NN, /* d8 - df */ 0x1d, 0x2a, 0x38, 0xdb, 0x9d, 0x36, 0xb8, 0xdc, /* e0 - e7 */ NN, NN, NN, NN, NN, NN, NN, NN, /* e8 - ef */ NN, NN, NN, NN, NN, NN, NN, NN, /* f0 - f7 */ NN, NN, NN, NN, NN, NN, NN, NN, /* f8 - ff */ }; #endif #define KEY_ERROR 0x01 #define PRESS 0x000 #define RELEASE 0x100 #define CODEMASK 0x0ff #define ADDKEY(c) ibuf[nkeys++] = (c) #define REP_DELAY1 400 #define REP_DELAYN 100 void btkbd_input(struct bthidev *self, uint8_t *data, int len) { struct btkbd_softc *sc = (struct btkbd_softc *)self; struct btkbd_data *ud = &sc->sc_ndata; uint16_t ibuf[MAXKEYS]; uint32_t mod, omod; int nkeys, i, j; int key; int s; if (sc->sc_wskbd == NULL || sc->sc_enabled == 0) return; /* extract key modifiers */ ud->modifiers = 0; for (i = 0 ; i < sc->sc_nmod ; i++) if (hid_get_data(data, &sc->sc_modloc[i])) ud->modifiers |= sc->sc_mods[i].mask; /* extract keycodes */ memcpy(ud->keycode, data + (sc->sc_keycodeloc.pos / 8), sc->sc_nkeycode); if (ud->keycode[0] == KEY_ERROR) return; /* ignore */ nkeys = 0; mod = ud->modifiers; omod = sc->sc_odata.modifiers; if (mod != omod) for (i = 0 ; i < sc->sc_nmod ; i++) if ((mod & sc->sc_mods[i].mask) != (omod & sc->sc_mods[i].mask)) ADDKEY(sc->sc_mods[i].key | (mod & sc->sc_mods[i].mask ? PRESS : RELEASE)); if (memcmp(ud->keycode, sc->sc_odata.keycode, sc->sc_nkeycode) != 0) { /* Check for released keys. */ for (i = 0 ; i < sc->sc_nkeycode ; i++) { key = sc->sc_odata.keycode[i]; if (key == 0) continue; for (j = 0 ; j < sc->sc_nkeycode ; j++) if (key == ud->keycode[j]) goto rfound; ADDKEY(key | RELEASE); rfound: ; } /* Check for pressed keys. */ for (i = 0 ; i < sc->sc_nkeycode ; i++) { key = ud->keycode[i]; if (key == 0) continue; for (j = 0; j < sc->sc_nkeycode; j++) if (key == sc->sc_odata.keycode[j]) goto pfound; ADDKEY(key | PRESS); pfound: ; } } sc->sc_odata = *ud; if (nkeys == 0) return; #ifdef WSDISPLAY_COMPAT_RAWKBD if (sc->sc_rawkbd) { u_char cbuf[MAXKEYS * 2]; int c; int npress; for (npress = i = j = 0 ; i < nkeys ; i++) { key = ibuf[i]; c = btkbd_trtab[key & CODEMASK]; if (c == NN) continue; if (c & 0x80) cbuf[j++] = 0xe0; cbuf[j] = c & 0x7f; if (key & RELEASE) cbuf[j] |= 0x80; #ifdef BTKBD_REPEAT else { /* remember pressed keys for autorepeat */ if (c & 0x80) sc->sc_rep[npress++] = 0xe0; sc->sc_rep[npress++] = c & 0x7f; } #endif j++; } s = spltty(); wskbd_rawinput(sc->sc_wskbd, cbuf, j); splx(s); #ifdef BTKBD_REPEAT timeout_del(&sc->sc_repeat); if (npress != 0) { sc->sc_nrep = npress; timeout_del(&sc->sc_repeat); timeout_set(&sc->sc_repeat, btkbd_repeat, sc); timeout_add(&sc->sc_repeat, hz * REP_DELAY1 / 1000); } #endif return; } #endif s = spltty(); for (i = 0 ; i < nkeys ; i++) { key = ibuf[i]; wskbd_input(sc->sc_wskbd, key & RELEASE ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN, key & CODEMASK); } splx(s); } #ifdef WSDISPLAY_COMPAT_RAWKBD #ifdef BTKBD_REPEAT void btkbd_repeat(void *arg) { struct btkbd_softc *sc = arg; int s; s = spltty(); wskbd_rawinput(sc->sc_wskbd, sc->sc_rep, sc->sc_nrep); splx(s); timeout_del(&sc->sc_repeat); timeout_set(&sc->sc_repeat, btkbd_repeat, sc); timeout_add(&sc->sc_repeat, hz * REP_DELAYN / 1000); } #endif #endif