/*- * Copyright (c) 1999 Kazutaka YOKOTA * All rights reserved. * * 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 as * the first lines of this file unmodified. * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 THE AUTHORS 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. * * $FreeBSD: src/sys/dev/kbd/kbd.c,v 1.17.2.2 2001/07/30 16:46:43 yokota Exp $ * $DragonFly: src/sys/dev/misc/kbd/kbd.c,v 1.23 2007/05/08 02:31:39 dillon Exp $ */ /* * Generic keyboard driver. * * Interrupt note: keyboards use clist functions and since usb keyboard * interrupts are not protected by spltty(), we must use a critical section * to protect against corruption. */ #include "opt_kbd.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include "kbdreg.h" #define KBD_INDEX(dev) minor(dev) typedef struct genkbd_softc { int gkb_flags; /* flag/status bits */ #define KB_ASLEEP (1 << 0) struct clist gkb_q; /* input queue */ struct selinfo gkb_rsel; } genkbd_softc_t; static SLIST_HEAD(, keyboard_driver) keyboard_drivers = SLIST_HEAD_INITIALIZER(keyboard_drivers); SET_DECLARE(kbddriver_set, const keyboard_driver_t); /* local arrays */ /* * We need at least one entry each in order to initialize a keyboard * for the kernel console. The arrays will be increased dynamically * when necessary. */ static int keyboards = 1; static keyboard_t *kbd_ini; static keyboard_t **keyboard = &kbd_ini; static keyboard_switch_t *kbdsw_ini; keyboard_switch_t **kbdsw = &kbdsw_ini; #define ARRAY_DELTA 4 static int kbd_realloc_array(void) { keyboard_t **new_kbd; keyboard_switch_t **new_kbdsw; int newsize; newsize = ((keyboards + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; new_kbd = kmalloc(sizeof(*new_kbd) * newsize, M_DEVBUF, M_WAITOK | M_ZERO); new_kbdsw = kmalloc(sizeof(*new_kbdsw) * newsize, M_DEVBUF, M_WAITOK | M_ZERO); bcopy(keyboard, new_kbd, sizeof(*keyboard)*keyboards); bcopy(kbdsw, new_kbdsw, sizeof(*kbdsw)*keyboards); crit_enter(); if (keyboards > 1) { kfree(keyboard, M_DEVBUF); kfree(kbdsw, M_DEVBUF); } keyboard = new_kbd; kbdsw = new_kbdsw; keyboards = newsize; crit_exit(); if (bootverbose) kprintf("kbd: new array size %d\n", keyboards); return 0; } /* * Low-level keyboard driver functions. * * Keyboard subdrivers, such as the AT keyboard driver and the USB keyboard * driver, call these functions to initialize the keyboard_t structure * and register it to the virtual keyboard driver `kbd'. * * The reinit call is made when a driver has partially detached a keyboard * but does not unregistered it, then wishes to reinitialize it later on. * This is how the USB keyboard driver handles the 'default' keyboard, * because unregistering the keyboard associated with the console will * destroy its console association forever. */ void kbd_reinit_struct(keyboard_t *kbd, int config, int pref) { kbd->kb_flags |= KB_NO_DEVICE; /* device has not been found */ kbd->kb_config = config & ~KB_CONF_PROBE_ONLY; kbd->kb_led = 0; /* unknown */ kbd->kb_data = NULL; kbd->kb_keymap = NULL; kbd->kb_accentmap = NULL; kbd->kb_fkeytab = NULL; kbd->kb_fkeytab_size = 0; kbd->kb_delay1 = KB_DELAY1; /* these values are advisory only */ kbd->kb_delay2 = KB_DELAY2; kbd->kb_count = 0; kbd->kb_pref = pref; bzero(kbd->kb_lastact, sizeof(kbd->kb_lastact)); } /* initialize the keyboard_t structure */ void kbd_init_struct(keyboard_t *kbd, char *name, int type, int unit, int config, int pref, int port, int port_size) { kbd->kb_flags = 0; kbd->kb_name = name; kbd->kb_type = type; kbd->kb_unit = unit; kbd->kb_io_base = port; kbd->kb_io_size = port_size; kbd_reinit_struct(kbd, config, pref); } void kbd_set_maps(keyboard_t *kbd, keymap_t *keymap, accentmap_t *accmap, fkeytab_t *fkeymap, int fkeymap_size) { kbd->kb_keymap = keymap; kbd->kb_accentmap = accmap; kbd->kb_fkeytab = fkeymap; kbd->kb_fkeytab_size = fkeymap_size; } /* declare a new keyboard driver */ int kbd_add_driver(keyboard_driver_t *driver) { if (SLIST_NEXT(driver, link)) return EINVAL; SLIST_INSERT_HEAD(&keyboard_drivers, driver, link); return 0; } int kbd_delete_driver(keyboard_driver_t *driver) { SLIST_REMOVE(&keyboard_drivers, driver, keyboard_driver, link); SLIST_NEXT(driver, link) = NULL; return 0; } /* register a keyboard and associate it with a function table */ int kbd_register(keyboard_t *kbd) { const keyboard_driver_t **list; const keyboard_driver_t *p; int index; for (index = 0; index < keyboards; ++index) { if (keyboard[index] == NULL) break; } if (index >= keyboards) { if (kbd_realloc_array()) return -1; } kbd->kb_index = index; KBD_UNBUSY(kbd); KBD_VALID(kbd); kbd->kb_active = 0; /* disabled until someone calls kbd_enable() */ kbd->kb_token = NULL; kbd->kb_callback.kc_func = NULL; kbd->kb_callback.kc_arg = NULL; callout_init(&kbd->kb_atkbd_timeout_ch); SLIST_FOREACH(p, &keyboard_drivers, link) { if (strcmp(p->name, kbd->kb_name) == 0) { keyboard[index] = kbd; kbdsw[index] = p->kbdsw; return index; } } SET_FOREACH(list, kbddriver_set) { p = *list; if (strcmp(p->name, kbd->kb_name) == 0) { keyboard[index] = kbd; kbdsw[index] = p->kbdsw; return index; } } return -1; } int kbd_unregister(keyboard_t *kbd) { int error; if ((kbd->kb_index < 0) || (kbd->kb_index >= keyboards)) return ENOENT; if (keyboard[kbd->kb_index] != kbd) return ENOENT; crit_enter(); callout_stop(&kbd->kb_atkbd_timeout_ch); if (KBD_IS_BUSY(kbd)) { error = (*kbd->kb_callback.kc_func)(kbd, KBDIO_UNLOADING, kbd->kb_callback.kc_arg); if (error) { crit_exit(); return error; } if (KBD_IS_BUSY(kbd)) { crit_exit(); return EBUSY; } } KBD_INVALID(kbd); keyboard[kbd->kb_index] = NULL; kbdsw[kbd->kb_index] = NULL; crit_exit(); return 0; } /* find a funciton table by the driver name */ keyboard_switch_t * kbd_get_switch(char *driver) { const keyboard_driver_t **list; const keyboard_driver_t *p; SLIST_FOREACH(p, &keyboard_drivers, link) { if (strcmp(p->name, driver) == 0) return p->kbdsw; } SET_FOREACH(list, kbddriver_set) { p = *list; if (strcmp(p->name, driver) == 0) return p->kbdsw; } return NULL; } /* * Keyboard client functions * Keyboard clients, such as the console driver `syscons' and the keyboard * cdev driver, use these functions to claim and release a keyboard for * exclusive use. */ /* find the keyboard specified by a driver name and a unit number */ int kbd_find_keyboard(char *driver, int unit) { int i; int pref; int pref_index; pref = 0; pref_index = -1; for (i = 0; i < keyboards; ++i) { if (keyboard[i] == NULL) continue; if (!KBD_IS_VALID(keyboard[i])) continue; if (strcmp("*", driver) && strcmp(keyboard[i]->kb_name, driver)) continue; if ((unit != -1) && (keyboard[i]->kb_unit != unit)) continue; if (pref <= keyboard[i]->kb_pref) { pref = keyboard[i]->kb_pref; pref_index = i; } } return (pref_index); } /* allocate a keyboard */ int kbd_allocate(char *driver, int unit, void *id, kbd_callback_func_t *func, void *arg) { int index; if (func == NULL) return -1; crit_enter(); index = kbd_find_keyboard(driver, unit); if (index >= 0) { if (KBD_IS_BUSY(keyboard[index])) { crit_exit(); return -1; } keyboard[index]->kb_token = id; KBD_BUSY(keyboard[index]); keyboard[index]->kb_callback.kc_func = func; keyboard[index]->kb_callback.kc_arg = arg; (*kbdsw[index]->clear_state)(keyboard[index]); } crit_exit(); return index; } int kbd_release(keyboard_t *kbd, void *id) { int error; crit_enter(); if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { error = EINVAL; } else if (kbd->kb_token != id) { error = EPERM; } else { kbd->kb_token = NULL; KBD_UNBUSY(kbd); kbd->kb_callback.kc_func = NULL; kbd->kb_callback.kc_arg = NULL; (*kbdsw[kbd->kb_index]->clear_state)(kbd); error = 0; } crit_exit(); return error; } int kbd_change_callback(keyboard_t *kbd, void *id, kbd_callback_func_t *func, void *arg) { int error; crit_enter(); if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { error = EINVAL; } else if (kbd->kb_token != id) { error = EPERM; } else if (func == NULL) { error = EINVAL; } else { kbd->kb_callback.kc_func = func; kbd->kb_callback.kc_arg = arg; error = 0; } crit_exit(); return error; } /* get a keyboard structure */ keyboard_t * kbd_get_keyboard(int index) { if ((index < 0) || (index >= keyboards)) return NULL; if (keyboard[index] == NULL) return NULL; if (!KBD_IS_VALID(keyboard[index])) return NULL; return keyboard[index]; } /* * The back door for the console driver; configure keyboards * This function is for the kernel console to initialize keyboards * at very early stage. */ int kbd_configure(int flags) { const keyboard_driver_t **list; const keyboard_driver_t *p; SLIST_FOREACH(p, &keyboard_drivers, link) { if (p->configure != NULL) (*p->configure)(flags); } SET_FOREACH(list, kbddriver_set) { p = *list; if (p->configure != NULL) (*p->configure)(flags); } return 0; } #ifdef KBD_INSTALL_CDEV /* * Virtual keyboard cdev driver functions * The virtual keyboard driver dispatches driver functions to * appropriate subdrivers. */ #define KBD_UNIT(dev) minor(dev) static d_open_t genkbdopen; static d_close_t genkbdclose; static d_read_t genkbdread; static d_write_t genkbdwrite; static d_ioctl_t genkbdioctl; static d_poll_t genkbdpoll; #define CDEV_MAJOR 112 static struct dev_ops kbd_ops = { { "kbd", CDEV_MAJOR, 0 }, .d_open = genkbdopen, .d_close = genkbdclose, .d_read = genkbdread, .d_write = genkbdwrite, .d_ioctl = genkbdioctl, .d_poll = genkbdpoll, }; int kbd_attach(keyboard_t *kbd) { cdev_t dev; if (kbd->kb_index >= keyboards) return EINVAL; if (keyboard[kbd->kb_index] != kbd) return EINVAL; dev_ops_add(&kbd_ops, -1, kbd->kb_index); dev = make_dev(&kbd_ops, kbd->kb_index, UID_ROOT, GID_WHEEL, 0600, "kbd%r", kbd->kb_index); if (dev->si_drv1 == NULL) dev->si_drv1 = kmalloc(sizeof(genkbd_softc_t), M_DEVBUF, M_WAITOK); bzero(dev->si_drv1, sizeof(genkbd_softc_t)); kprintf("kbd%d at %s%d\n", kbd->kb_index, kbd->kb_name, kbd->kb_unit); return 0; } int kbd_detach(keyboard_t *kbd) { cdev_t dev; if (kbd->kb_index >= keyboards) return EINVAL; if (keyboard[kbd->kb_index] != kbd) return EINVAL; /* * Deal with refs properly. The KBD driver really ought to have * recorded the cdev_t separately. */ if ((dev = make_adhoc_dev(&kbd_ops, kbd->kb_index)) != NULL) { if (dev->si_drv1) { kfree(dev->si_drv1, M_DEVBUF); dev->si_drv1 = NULL; } } dev_ops_remove(&kbd_ops, -1, kbd->kb_index); return 0; } /* * Generic keyboard cdev driver functions * Keyboard subdrivers may call these functions to implement common * driver functions. */ #define KB_QSIZE 512 #define KB_BUFSIZE 64 static kbd_callback_func_t genkbd_event; static int genkbdopen(struct dev_open_args *ap) { cdev_t dev = ap->a_head.a_dev; keyboard_t *kbd; genkbd_softc_t *sc; int i; crit_enter(); sc = dev->si_drv1; kbd = kbd_get_keyboard(KBD_INDEX(dev)); if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { crit_exit(); return ENXIO; } i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc, genkbd_event, (void *)sc); if (i < 0) { crit_exit(); return EBUSY; } /* assert(i == kbd->kb_index) */ /* assert(kbd == kbd_get_keyboard(i)) */ /* * NOTE: even when we have successfully claimed a keyboard, * the device may still be missing (!KBD_HAS_DEVICE(kbd)). */ #if 0 bzero(&sc->gkb_q, sizeof(sc->gkb_q)); #endif clist_alloc_cblocks(&sc->gkb_q, KB_QSIZE, KB_QSIZE/2); /* XXX */ sc->gkb_rsel.si_flags = 0; sc->gkb_rsel.si_pid = 0; crit_exit(); return 0; } static int genkbdclose(struct dev_close_args *ap) { cdev_t dev = ap->a_head.a_dev; keyboard_t *kbd; genkbd_softc_t *sc; /* * NOTE: the device may have already become invalid. * kbd == NULL || !KBD_IS_VALID(kbd) */ crit_enter(); sc = dev->si_drv1; kbd = kbd_get_keyboard(KBD_INDEX(dev)); if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { /* XXX: we shall be forgiving and don't report error... */ } else { kbd_release(kbd, (void *)sc); #if 0 clist_free_cblocks(&sc->gkb_q); #endif } crit_exit(); return 0; } static int genkbdread(struct dev_read_args *ap) { cdev_t dev = ap->a_head.a_dev; struct uio *uio = ap->a_uio; keyboard_t *kbd; genkbd_softc_t *sc; u_char buffer[KB_BUFSIZE]; int len; int error; /* wait for input */ crit_enter(); sc = dev->si_drv1; kbd = kbd_get_keyboard(KBD_INDEX(dev)); if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { crit_exit(); return ENXIO; } while (sc->gkb_q.c_cc == 0) { if (ap->a_ioflag & IO_NDELAY) { crit_exit(); return EWOULDBLOCK; } sc->gkb_flags |= KB_ASLEEP; error = tsleep((caddr_t)sc, PCATCH, "kbdrea", 0); kbd = kbd_get_keyboard(KBD_INDEX(dev)); if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { crit_exit(); return ENXIO; /* our keyboard has gone... */ } if (error) { sc->gkb_flags &= ~KB_ASLEEP; crit_exit(); return error; } } crit_exit(); /* copy as much input as possible */ error = 0; while (uio->uio_resid > 0) { len = imin(uio->uio_resid, sizeof(buffer)); len = q_to_b(&sc->gkb_q, buffer, len); if (len <= 0) break; error = uiomove(buffer, len, uio); if (error) break; } return error; } static int genkbdwrite(struct dev_write_args *ap) { cdev_t dev = ap->a_head.a_dev; keyboard_t *kbd; kbd = kbd_get_keyboard(KBD_INDEX(dev)); if ((kbd == NULL) || !KBD_IS_VALID(kbd)) return ENXIO; return ENODEV; } static int genkbdioctl(struct dev_ioctl_args *ap) { cdev_t dev = ap->a_head.a_dev; keyboard_t *kbd; int error; kbd = kbd_get_keyboard(KBD_INDEX(dev)); if ((kbd == NULL) || !KBD_IS_VALID(kbd)) return ENXIO; error = (*kbdsw[kbd->kb_index]->ioctl)(kbd, ap->a_cmd, ap->a_data); if (error == ENOIOCTL) error = ENODEV; return error; } static int genkbdpoll(struct dev_poll_args *ap) { cdev_t dev = ap->a_head.a_dev; keyboard_t *kbd; genkbd_softc_t *sc; int revents; revents = 0; crit_enter(); sc = dev->si_drv1; kbd = kbd_get_keyboard(KBD_INDEX(dev)); if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { revents = POLLHUP; /* the keyboard has gone */ } else if (ap->a_events & (POLLIN | POLLRDNORM)) { if (sc->gkb_q.c_cc > 0) revents = ap->a_events & (POLLIN | POLLRDNORM); else selrecord(curthread, &sc->gkb_rsel); } crit_exit(); ap->a_events = revents; return (0); } static int genkbd_event(keyboard_t *kbd, int event, void *arg) { genkbd_softc_t *sc; size_t len; u_char *cp; int mode; int c; /* assert(KBD_IS_VALID(kbd)) */ sc = (genkbd_softc_t *)arg; switch (event) { case KBDIO_KEYINPUT: break; case KBDIO_UNLOADING: /* the keyboard is going... */ kbd_release(kbd, (void *)sc); if (sc->gkb_flags & KB_ASLEEP) { sc->gkb_flags &= ~KB_ASLEEP; wakeup((caddr_t)sc); } selwakeup(&sc->gkb_rsel); return 0; default: return EINVAL; } /* obtain the current key input mode */ if ((*kbdsw[kbd->kb_index]->ioctl)(kbd, KDGKBMODE, (caddr_t)&mode)) mode = K_XLATE; /* read all pending input */ while ((*kbdsw[kbd->kb_index]->check_char)(kbd)) { c = (*kbdsw[kbd->kb_index]->read_char)(kbd, FALSE); if (c == NOKEY) continue; if (c == ERRKEY) /* XXX: ring bell? */ continue; if (!KBD_IS_BUSY(kbd)) /* the device is not open, discard the input */ continue; /* store the byte as is for K_RAW and K_CODE modes */ if (mode != K_XLATE) { clist_putc(KEYCHAR(c), &sc->gkb_q); continue; } /* K_XLATE */ if (c & RELKEY) /* key release is ignored */ continue; /* process special keys; most of them are just ignored... */ if (c & SPCLKEY) { switch (KEYCHAR(c)) { default: /* ignore them... */ continue; case BTAB: /* a backtab: ESC [ Z */ clist_putc(0x1b, &sc->gkb_q); clist_putc('[', &sc->gkb_q); clist_putc('Z', &sc->gkb_q); continue; } } /* normal chars, normal chars with the META, function keys */ switch (KEYFLAGS(c)) { case 0: /* a normal char */ clist_putc(KEYCHAR(c), &sc->gkb_q); break; case MKEY: /* the META flag: prepend ESC */ clist_putc(0x1b, &sc->gkb_q); clist_putc(KEYCHAR(c), &sc->gkb_q); break; case FKEY | SPCLKEY: /* a function key, return string */ cp = (*kbdsw[kbd->kb_index]->get_fkeystr)(kbd, KEYCHAR(c), &len); if (cp != NULL) { while (len-- > 0) clist_putc(*cp++, &sc->gkb_q); } break; } } /* wake up sleeping/polling processes */ if (sc->gkb_q.c_cc > 0) { if (sc->gkb_flags & KB_ASLEEP) { sc->gkb_flags &= ~KB_ASLEEP; wakeup((caddr_t)sc); } selwakeup(&sc->gkb_rsel); } return 0; } #endif /* KBD_INSTALL_CDEV */ /* * Generic low-level keyboard functions * The low-level functions in the keyboard subdriver may use these * functions. */ int genkbd_commonioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) { keyarg_t *keyp; fkeyarg_t *fkeyp; int i; crit_enter(); switch (cmd) { case KDGKBINFO: /* get keyboard information */ ((keyboard_info_t *)arg)->kb_index = kbd->kb_index; i = imin(strlen(kbd->kb_name) + 1, sizeof(((keyboard_info_t *)arg)->kb_name)); bcopy(kbd->kb_name, ((keyboard_info_t *)arg)->kb_name, i); ((keyboard_info_t *)arg)->kb_unit = kbd->kb_unit; ((keyboard_info_t *)arg)->kb_type = kbd->kb_type; ((keyboard_info_t *)arg)->kb_config = kbd->kb_config; ((keyboard_info_t *)arg)->kb_flags = kbd->kb_flags; break; case KDGKBTYPE: /* get keyboard type */ *(int *)arg = kbd->kb_type; break; case KDGETREPEAT: /* get keyboard repeat rate */ ((int *)arg)[0] = kbd->kb_delay1; ((int *)arg)[1] = kbd->kb_delay2; break; case GIO_KEYMAP: /* get keyboard translation table */ bcopy(kbd->kb_keymap, arg, sizeof(*kbd->kb_keymap)); break; case PIO_KEYMAP: /* set keyboard translation table */ #ifndef KBD_DISABLE_KEYMAP_LOAD bzero(kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); bcopy(arg, kbd->kb_keymap, sizeof(*kbd->kb_keymap)); break; #else crit_exit(); return ENODEV; #endif case GIO_KEYMAPENT: /* get keyboard translation table entry */ keyp = (keyarg_t *)arg; if (keyp->keynum >= sizeof(kbd->kb_keymap->key) /sizeof(kbd->kb_keymap->key[0])) { crit_exit(); return EINVAL; } bcopy(&kbd->kb_keymap->key[keyp->keynum], &keyp->key, sizeof(keyp->key)); break; case PIO_KEYMAPENT: /* set keyboard translation table entry */ #ifndef KBD_DISABLE_KEYMAP_LOAD keyp = (keyarg_t *)arg; if (keyp->keynum >= sizeof(kbd->kb_keymap->key) /sizeof(kbd->kb_keymap->key[0])) { crit_exit(); return EINVAL; } bcopy(&keyp->key, &kbd->kb_keymap->key[keyp->keynum], sizeof(keyp->key)); break; #else crit_exit(); return ENODEV; #endif case GIO_DEADKEYMAP: /* get accent key translation table */ bcopy(kbd->kb_accentmap, arg, sizeof(*kbd->kb_accentmap)); break; case PIO_DEADKEYMAP: /* set accent key translation table */ #ifndef KBD_DISABLE_KEYMAP_LOAD bcopy(arg, kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); break; #else crit_exit(); return ENODEV; #endif case GETFKEY: /* get functionkey string */ fkeyp = (fkeyarg_t *)arg; if (fkeyp->keynum >= kbd->kb_fkeytab_size) { crit_exit(); return EINVAL; } bcopy(kbd->kb_fkeytab[fkeyp->keynum].str, fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].len); fkeyp->flen = kbd->kb_fkeytab[fkeyp->keynum].len; break; case SETFKEY: /* set functionkey string */ #ifndef KBD_DISABLE_KEYMAP_LOAD fkeyp = (fkeyarg_t *)arg; if (fkeyp->keynum >= kbd->kb_fkeytab_size) { crit_exit(); return EINVAL; } kbd->kb_fkeytab[fkeyp->keynum].len = imin(fkeyp->flen, MAXFK); bcopy(fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].str, kbd->kb_fkeytab[fkeyp->keynum].len); break; #else crit_exit(); return ENODEV; #endif default: crit_exit(); return ENOIOCTL; } crit_exit(); return 0; } /* get a pointer to the string associated with the given function key */ u_char * genkbd_get_fkeystr(keyboard_t *kbd, int fkey, size_t *len) { if (kbd == NULL) return NULL; fkey -= F_FN; if (fkey > kbd->kb_fkeytab_size) return NULL; *len = kbd->kb_fkeytab[fkey].len; return kbd->kb_fkeytab[fkey].str; } /* diagnostic dump */ static char * get_kbd_type_name(int type) { static struct { int type; char *name; } name_table[] = { { KB_84, "AT 84" }, { KB_101, "AT 101/102" }, { KB_OTHER, "generic" }, }; int i; for (i = 0; i < sizeof(name_table)/sizeof(name_table[0]); ++i) { if (type == name_table[i].type) return name_table[i].name; } return "unknown"; } void genkbd_diag(keyboard_t *kbd, int level) { if (level > 0) { kprintf("kbd%d: %s%d, %s (%d), config:0x%x, flags:0x%x", kbd->kb_index, kbd->kb_name, kbd->kb_unit, get_kbd_type_name(kbd->kb_type), kbd->kb_type, kbd->kb_config, kbd->kb_flags); if (kbd->kb_io_base > 0) kprintf(", port:0x%x-0x%x", kbd->kb_io_base, kbd->kb_io_base + kbd->kb_io_size - 1); kprintf("\n"); } } #define set_lockkey_state(k, s, l) \ if (!((s) & l ## DOWN)) { \ int i; \ (s) |= l ## DOWN; \ (s) ^= l ## ED; \ i = (s) & LOCK_MASK; \ (*kbdsw[(k)->kb_index]->ioctl)((k), KDSETLED, (caddr_t)&i); \ } static u_int save_accent_key(keyboard_t *kbd, u_int key, int *accents) { int i; /* make an index into the accent map */ i = key - F_ACC + 1; if ((i > kbd->kb_accentmap->n_accs) || (kbd->kb_accentmap->acc[i - 1].accchar == 0)) { /* the index is out of range or pointing to an empty entry */ *accents = 0; return ERRKEY; } /* * If the same accent key has been hit twice, produce the accent char * itself. */ if (i == *accents) { key = kbd->kb_accentmap->acc[i - 1].accchar; *accents = 0; return key; } /* remember the index and wait for the next key */ *accents = i; return NOKEY; } static u_int make_accent_char(keyboard_t *kbd, u_int ch, int *accents) { struct acc_t *acc; int i; acc = &kbd->kb_accentmap->acc[*accents - 1]; *accents = 0; /* * If the accent key is followed by the space key, * produce the accent char itself. */ if (ch == ' ') return acc->accchar; /* scan the accent map */ for (i = 0; i < NUM_ACCENTCHARS; ++i) { if (acc->map[i][0] == 0) /* end of table */ break; if (acc->map[i][0] == ch) return acc->map[i][1]; } /* this char cannot be accented... */ return ERRKEY; } int genkbd_keyaction(keyboard_t *kbd, int keycode, int up, int *shiftstate, int *accents) { struct keyent_t *key; int state = *shiftstate; int action; int f; int i; i = keycode; f = state & (AGRS | ALKED); if ((f == AGRS1) || (f == AGRS2) || (f == ALKED)) i += ALTGR_OFFSET; key = &kbd->kb_keymap->key[i]; i = ((state & SHIFTS) ? 1 : 0) | ((state & CTLS) ? 2 : 0) | ((state & ALTS) ? 4 : 0); if (((key->flgs & FLAG_LOCK_C) && (state & CLKED)) || ((key->flgs & FLAG_LOCK_N) && (state & NLKED)) ) i ^= 1; if (up) { /* break: key released */ action = kbd->kb_lastact[keycode]; kbd->kb_lastact[keycode] = NOP; switch (action) { case LSHA: if (state & SHIFTAON) { set_lockkey_state(kbd, state, ALK); state &= ~ALKDOWN; } action = LSH; /* FALL THROUGH */ case LSH: state &= ~SHIFTS1; break; case RSHA: if (state & SHIFTAON) { set_lockkey_state(kbd, state, ALK); state &= ~ALKDOWN; } action = RSH; /* FALL THROUGH */ case RSH: state &= ~SHIFTS2; break; case LCTRA: if (state & SHIFTAON) { set_lockkey_state(kbd, state, ALK); state &= ~ALKDOWN; } action = LCTR; /* FALL THROUGH */ case LCTR: state &= ~CTLS1; break; case RCTRA: if (state & SHIFTAON) { set_lockkey_state(kbd, state, ALK); state &= ~ALKDOWN; } action = RCTR; /* FALL THROUGH */ case RCTR: state &= ~CTLS2; break; case LALTA: if (state & SHIFTAON) { set_lockkey_state(kbd, state, ALK); state &= ~ALKDOWN; } action = LALT; /* FALL THROUGH */ case LALT: state &= ~ALTS1; break; case RALTA: if (state & SHIFTAON) { set_lockkey_state(kbd, state, ALK); state &= ~ALKDOWN; } action = RALT; /* FALL THROUGH */ case RALT: state &= ~ALTS2; break; case ASH: state &= ~AGRS1; break; case META: state &= ~METAS1; break; case NLK: state &= ~NLKDOWN; break; case CLK: state &= ~CLKDOWN; break; case SLK: state &= ~SLKDOWN; break; case ALK: state &= ~ALKDOWN; break; case NOP: /* release events of regular keys are not reported */ *shiftstate &= ~SHIFTAON; return NOKEY; } *shiftstate = state & ~SHIFTAON; return (SPCLKEY | RELKEY | action); } else { /* make: key pressed */ action = key->map[i]; state &= ~SHIFTAON; if (key->spcl & (0x80 >> i)) { /* special keys */ if (kbd->kb_lastact[keycode] == NOP) kbd->kb_lastact[keycode] = action; if (kbd->kb_lastact[keycode] != action) action = NOP; switch (action) { /* LOCKING KEYS */ case NLK: set_lockkey_state(kbd, state, NLK); break; case CLK: set_lockkey_state(kbd, state, CLK); break; case SLK: set_lockkey_state(kbd, state, SLK); break; case ALK: set_lockkey_state(kbd, state, ALK); break; /* NON-LOCKING KEYS */ case SPSC: case RBT: case SUSP: case STBY: case DBG: case NEXT: case PREV: case PNC: case HALT: case PDWN: *accents = 0; break; case BTAB: *accents = 0; action |= BKEY; break; case LSHA: state |= SHIFTAON; action = LSH; /* FALL THROUGH */ case LSH: state |= SHIFTS1; break; case RSHA: state |= SHIFTAON; action = RSH; /* FALL THROUGH */ case RSH: state |= SHIFTS2; break; case LCTRA: state |= SHIFTAON; action = LCTR; /* FALL THROUGH */ case LCTR: state |= CTLS1; break; case RCTRA: state |= SHIFTAON; action = RCTR; /* FALL THROUGH */ case RCTR: state |= CTLS2; break; case LALTA: state |= SHIFTAON; action = LALT; /* FALL THROUGH */ case LALT: state |= ALTS1; break; case RALTA: state |= SHIFTAON; action = RALT; /* FALL THROUGH */ case RALT: state |= ALTS2; break; case ASH: state |= AGRS1; break; case META: state |= METAS1; break; case NOP: *shiftstate = state; return NOKEY; default: /* is this an accent (dead) key? */ *shiftstate = state; if (action >= F_ACC && action <= L_ACC) { action = save_accent_key(kbd, action, accents); switch (action) { case NOKEY: case ERRKEY: return action; default: if (state & METAS) return (action | MKEY); else return action; } /* NOT REACHED */ } /* other special keys */ if (*accents > 0) { *accents = 0; return ERRKEY; } if (action >= F_FN && action <= L_FN) action |= FKEY; /* XXX: return fkey string for the FKEY? */ return (SPCLKEY | action); } *shiftstate = state; return (SPCLKEY | action); } else { /* regular keys */ kbd->kb_lastact[keycode] = NOP; *shiftstate = state; if (*accents > 0) { /* make an accented char */ action = make_accent_char(kbd, action, accents); if (action == ERRKEY) return action; } if (state & METAS) action |= MKEY; return action; } } /* NOT REACHED */ }