/* * $FreeBSD: src/sys/dev/usb/ukbd.c,v 1.45 2003/10/04 21:41:01 joe Exp $ */ /* * (MPSAFE) * * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net) at * Carlstedt Research & Technology. * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ /* * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf * * NOTE: All locks are handled by the kbd wrappers. */ #include "opt_kbd.h" #include "opt_ukbd.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define UKBD_EMULATE_ATSCANCODE 1 #define DRIVER_NAME "ukbd" #define delay(d) DELAY(d) #ifdef USB_DEBUG #define DPRINTF(x) if (ukbddebug) kprintf x #define DPRINTFN(n,x) if (ukbddebug>(n)) kprintf x int ukbddebug = 0; SYSCTL_NODE(_hw_usb, OID_AUTO, ukbd, CTLFLAG_RW, 0, "USB ukbd"); SYSCTL_INT(_hw_usb_ukbd, OID_AUTO, debug, CTLFLAG_RW, &ukbddebug, 0, "ukbd debug level"); #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif #define NKEYCODE 6 struct ukbd_data { u_int8_t modifiers; #define MOD_CONTROL_L 0x01 #define MOD_CONTROL_R 0x10 #define MOD_SHIFT_L 0x02 #define MOD_SHIFT_R 0x20 #define MOD_ALT_L 0x04 #define MOD_ALT_R 0x40 #define MOD_WIN_L 0x08 #define MOD_WIN_R 0x80 u_int8_t reserved; u_int8_t keycode[NKEYCODE]; }; #define MAXKEYS (NMOD+2*NKEYCODE) typedef struct ukbd_softc { device_t sc_dev; /* base device */ } ukbd_softc_t; #define UKBD_CHUNK 128 /* chunk size for read */ #define UKBD_BSIZE 1020 /* buffer size */ typedef void usbd_intr_t(usbd_xfer_handle, usbd_private_handle, usbd_status); typedef void usbd_disco_t(void *); static int ukbd_resume(device_t self); static usbd_intr_t ukbd_intr; static int ukbd_driver_load(module_t mod, int what, void *arg); static keyboard_t default_kbd; static device_probe_t ukbd_match; static device_attach_t ukbd_attach; static device_detach_t ukbd_detach; static devclass_t ukbd_devclass; static kobj_method_t ukbd_methods[] = { DEVMETHOD(device_probe, ukbd_match), DEVMETHOD(device_attach, ukbd_attach), DEVMETHOD(device_detach, ukbd_detach), DEVMETHOD(device_resume, ukbd_resume), {0,0} }; static driver_t ukbd_driver = { "ukbd", ukbd_methods, sizeof(struct ukbd_softc) }; MODULE_DEPEND(ukbd, usb, 1, 1, 1); static int ukbd_match(device_t self) { struct usb_attach_arg *uaa = device_get_ivars(self); keyboard_switch_t *sw; void *arg[2]; int unit = device_get_unit(self); sw = kbd_get_switch(DRIVER_NAME); if (sw == NULL) return (UMATCH_NONE); arg[0] = (void *)uaa; arg[1] = (void *)ukbd_intr; if ((*sw->probe)(unit, (void *)arg, 0)) return (UMATCH_NONE); return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); } static int ukbd_attach(device_t self) { struct ukbd_softc *sc = device_get_softc(self); struct usb_attach_arg *uaa = device_get_ivars(self); keyboard_switch_t *sw; keyboard_t *kbd; void *arg[2]; int unit = device_get_unit(self); sc->sc_dev = self; sw = kbd_get_switch(DRIVER_NAME); if (sw == NULL) return ENXIO; arg[0] = (void *)uaa; arg[1] = (void *)ukbd_intr; kbd = NULL; if ((*sw->probe)(unit, (void *)arg, 0)) return ENXIO; if ((*sw->init)(unit, &kbd, (void *)arg, 0)) return ENXIO; (*sw->enable)(kbd); #ifdef KBD_INSTALL_CDEV if (kbd_attach(kbd)) return ENXIO; #endif if (bootverbose) (*sw->diag)(kbd, bootverbose); return 0; } int ukbd_detach(device_t self) { keyboard_t *kbd; int error; kbd = kbd_get_keyboard(kbd_find_keyboard(DRIVER_NAME, device_get_unit(self))); if (kbd == NULL) { DPRINTF(("%s: keyboard not attached!?\n", device_get_nameunit(self))); return ENXIO; } kbd_disable(kbd); #ifdef KBD_INSTALL_CDEV error = kbd_detach(kbd); if (error) return error; #endif error = kbd_term(kbd); if (error) return error; DPRINTF(("%s: disconnected\n", device_get_nameunit(self))); return (0); } static int ukbd_resume(device_t self) { keyboard_t *kbd; kbd = kbd_get_keyboard(kbd_find_keyboard(DRIVER_NAME, device_get_unit(self))); if (kbd) kbd_clear_state(kbd); return (0); } void ukbd_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) { keyboard_t *kbd = (keyboard_t *)addr; kbd_intr(kbd, (void *)status); } DRIVER_MODULE(ukbd, uhub, ukbd_driver, ukbd_devclass, ukbd_driver_load, 0); #define UKBD_DEFAULT 0 #define KEY_ERROR 0x01 #define KEY_PRESS 0 #define KEY_RELEASE 0x400 #define KEY_INDEX(c) ((c) & ~KEY_RELEASE) #define SCAN_PRESS 0 #define SCAN_RELEASE 0x80 #define SCAN_PREFIX_E0 0x100 #define SCAN_PREFIX_E1 0x200 #define SCAN_PREFIX_CTL 0x400 #define SCAN_PREFIX_SHIFT 0x800 #define SCAN_PREFIX (SCAN_PREFIX_E0 | SCAN_PREFIX_E1 | SCAN_PREFIX_CTL \ | SCAN_PREFIX_SHIFT) #define SCAN_CHAR(c) ((c) & 0x7f) #define NMOD 8 static struct { int mask, key; } ukbd_mods[NMOD] = { { MOD_CONTROL_L, 0xe0 }, { MOD_CONTROL_R, 0xe4 }, { MOD_SHIFT_L, 0xe1 }, { MOD_SHIFT_R, 0xe5 }, { MOD_ALT_L, 0xe2 }, { MOD_ALT_R, 0xe6 }, { MOD_WIN_L, 0xe3 }, { MOD_WIN_R, 0xe7 }, }; #define NN 0 /* no translation */ /* * Translate USB keycodes to AT keyboard scancodes. */ /* * FIXME: Mac USB keyboard generates: * 0x53: keypad NumLock/Clear * 0x66: Power * 0x67: keypad = * 0x68: F13 * 0x69: F14 * 0x6a: F15 */ static u_int8_t ukbd_trtab[256] = { 0, 0, 0, 0, 30, 48, 46, 32, /* 00 - 07 */ 18, 33, 34, 35, 23, 36, 37, 38, /* 08 - 0F */ 50, 49, 24, 25, 16, 19, 31, 20, /* 10 - 17 */ 22, 47, 17, 45, 21, 44, 2, 3, /* 18 - 1F */ 4, 5, 6, 7, 8, 9, 10, 11, /* 20 - 27 */ 28, 1, 14, 15, 57, 12, 13, 26, /* 28 - 2F */ 27, 43, 43, 39, 40, 41, 51, 52, /* 30 - 37 */ 53, 58, 59, 60, 61, 62, 63, 64, /* 38 - 3F */ 65, 66, 67, 68, 87, 88, 92, 70, /* 40 - 47 */ 104, 102, 94, 96, 103, 99, 101, 98, /* 48 - 4F */ 97, 100, 95, 69, 91, 55, 74, 78, /* 50 - 57 */ 89, 79, 80, 81, 75, 76, 77, 71, /* 58 - 5F */ 72, 73, 82, 83, 86, 107, 122, NN, /* 60 - 67 */ NN, NN, NN, NN, NN, NN, NN, NN, /* 68 - 6F */ NN, NN, NN, NN, 115, 108, 111, 113, /* 70 - 77 */ 109, 110, 112, 118, 114, 116, 117, 119, /* 78 - 7F */ 121, 120, NN, NN, NN, NN, NN, 115, /* 80 - 87 */ 112, 125, 121, 123, NN, NN, NN, NN, /* 88 - 8F */ NN, NN, NN, NN, NN, 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 */ 29, 42, 56, 105, 90, 54, 93, 106, /* 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 */ }; typedef struct ukbd_state { usbd_interface_handle ks_iface; /* interface */ usbd_pipe_handle ks_intrpipe; /* interrupt pipe */ struct usb_attach_arg *ks_uaa; int ks_ep_addr; struct ukbd_data ks_ndata; struct ukbd_data ks_odata; u_long ks_ntime[NKEYCODE]; u_long ks_otime[NKEYCODE]; #define INPUTBUFSIZE (NMOD + 2*NKEYCODE) u_int ks_input[INPUTBUFSIZE]; /* input buffer */ int ks_inputs; int ks_inputhead; int ks_inputtail; int ks_ifstate; #define INTRENABLED (1 << 0) #define DISCONNECTED (1 << 1) struct callout ks_timeout; int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ int ks_flags; /* flags */ #define COMPOSE (1 << 0) int ks_polling; int ks_state; /* shift/lock key state */ int ks_accents; /* accent key index (> 0) */ u_int ks_composed_char; /* composed char code (> 0) */ #ifdef UKBD_EMULATE_ATSCANCODE u_int ks_buffered_char[2]; #endif } ukbd_state_t; /* keyboard driver declaration */ static int ukbd_configure(int flags); static kbd_probe_t ukbd_probe; static kbd_init_t ukbd_init; static kbd_term_t ukbd_term; static kbd_intr_t ukbd_interrupt; static kbd_test_if_t ukbd_test_if; static kbd_enable_t ukbd_enable; static kbd_disable_t ukbd_disable; static kbd_read_t ukbd_read; static kbd_check_t ukbd_check; static kbd_read_char_t ukbd_read_char; static kbd_check_char_t ukbd_check_char; static kbd_ioctl_t ukbd_ioctl; static kbd_lock_t ukbd_lock; static kbd_clear_state_t ukbd_clear_state; static kbd_get_state_t ukbd_get_state; static kbd_set_state_t ukbd_set_state; static kbd_poll_mode_t ukbd_poll; keyboard_switch_t ukbdsw = { ukbd_probe, ukbd_init, ukbd_term, ukbd_interrupt, ukbd_test_if, ukbd_enable, ukbd_disable, ukbd_read, ukbd_check, ukbd_read_char, ukbd_check_char, ukbd_ioctl, ukbd_lock, ukbd_clear_state, ukbd_get_state, ukbd_set_state, genkbd_get_fkeystr, ukbd_poll, genkbd_diag, }; KEYBOARD_DRIVER(ukbd, ukbdsw, ukbd_configure); /* local functions */ static int ukbd_enable_intr(keyboard_t *kbd, int on, usbd_intr_t *func); static timeout_t ukbd_timeout; static int ukbd_getc(ukbd_state_t *state, int wait); static int probe_keyboard(struct usb_attach_arg *uaa, int flags); static int init_keyboard(ukbd_state_t *state, int *type, int flags); static void set_leds(ukbd_state_t *state, int leds); static int set_typematic(keyboard_t *kbd, int code); #ifdef UKBD_EMULATE_ATSCANCODE static int keycode2scancode(int keycode, int shift, int up); #endif /* local variables */ /* the initial key map, accent map and fkey strings */ #if defined(UKBD_DFLT_KEYMAP) && !defined(KLD_MODULE) #define KBD_DFLT_KEYMAP #include "ukbdmap.h" #endif #include /* structures for the default keyboard */ static ukbd_state_t default_kbd_state; static keymap_t default_keymap; static accentmap_t default_accentmap; static fkeytab_t default_fkeytab[NUM_FKEYS]; /* * The back door to the keyboard driver! * This function is called by the console driver, via the kbdio module, * to tickle keyboard drivers when the low-level console is being initialized. * Almost nothing in the kernel has been initialied yet. Try to probe * keyboards if possible. * NOTE: because of the way the low-level conole is initialized, this routine * may be called more than once!! */ static int ukbd_configure(int flags) { return 0; #if 0 /* not yet */ keyboard_t *kbd; device_t device; struct usb_attach_arg *uaa; void *arg[2]; device = devclass_get_device(ukbd_devclass, UKBD_DEFAULT); if (device == NULL) return 0; uaa = (struct usb_attach_arg *)device_get_ivars(device); if (uaa == NULL) return 0; /* probe the default keyboard */ arg[0] = (void *)uaa; arg[1] = (void *)ukbd_intr; kbd = NULL; if (ukbd_probe(UKBD_DEFAULT, arg, flags)) return 0; if (ukbd_init(UKBD_DEFAULT, &kbd, arg, flags)) return 0; /* return the number of found keyboards */ return 1; #endif } /* low-level functions */ /* detect a keyboard */ static int ukbd_probe(int unit, void *arg, int flags) { void **data; struct usb_attach_arg *uaa; data = (void **)arg; uaa = (struct usb_attach_arg *)data[0]; if (unit == UKBD_DEFAULT) { if (KBD_IS_PROBED(&default_kbd)) return 0; } if (probe_keyboard(uaa, flags)) return ENXIO; return 0; } /* * Reset and initialize the device. Note that unit 0 (UKBD_DEFAULT) is an * always-connected device once it has been initially detected. We do not * deregister it if the usb keyboard is unplugged to avoid losing the * connection to the console. This feature also handles the USB bus reset * which detaches and reattaches USB devices during boot. */ static int ukbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) { keyboard_t *kbd; ukbd_state_t *state; keymap_t *keymap; accentmap_t *accmap; fkeytab_t *fkeymap; int fkeymap_size; void **data = (void **)arg; struct usb_attach_arg *uaa = (struct usb_attach_arg *)data[0]; if (unit == UKBD_DEFAULT) { *kbdp = kbd = &default_kbd; if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) { return 0; } state = &default_kbd_state; keymap = &default_keymap; accmap = &default_accentmap; fkeymap = default_fkeytab; fkeymap_size = NELEM(default_fkeytab); } else if (*kbdp == NULL) { *kbdp = kbd = kmalloc(sizeof(*kbd), M_DEVBUF, M_INTWAIT | M_ZERO); state = kmalloc(sizeof(*state), M_DEVBUF, M_INTWAIT); keymap = kmalloc(sizeof(key_map), M_DEVBUF, M_INTWAIT); accmap = kmalloc(sizeof(accent_map), M_DEVBUF, M_INTWAIT); fkeymap = kmalloc(sizeof(fkey_tab), M_DEVBUF, M_INTWAIT); fkeymap_size = NELEM(fkey_tab); if ((state == NULL) || (keymap == NULL) || (accmap == NULL) || (fkeymap == NULL)) { if (state != NULL) kfree(state, M_DEVBUF); if (keymap != NULL) kfree(keymap, M_DEVBUF); if (accmap != NULL) kfree(accmap, M_DEVBUF); if (fkeymap != NULL) kfree(fkeymap, M_DEVBUF); kfree(kbd, M_DEVBUF); return ENOMEM; } } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { return 0; } else { kbd = *kbdp; state = (ukbd_state_t *)kbd->kb_data; keymap = kbd->kb_keymap; accmap = kbd->kb_accentmap; fkeymap = kbd->kb_fkeytab; fkeymap_size = kbd->kb_fkeytab_size; } if (!KBD_IS_PROBED(kbd)) { kbd_init_struct(kbd, DRIVER_NAME, KB_OTHER, unit, flags, KB_PRI_USB, 0, 0); bzero(state, sizeof(*state)); bcopy(&key_map, keymap, sizeof(key_map)); bcopy(&accent_map, accmap, sizeof(accent_map)); bcopy(fkey_tab, fkeymap, imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); kbd->kb_data = (void *)state; if (probe_keyboard(uaa, flags)) { return ENXIO; } else { KBD_FOUND_DEVICE(kbd); } ukbd_clear_state(kbd); /* * If reattatching to an already open keyboard (e.g. console), * try to restore the translation mode. Otherwise set the * translation mode to, well, translation mode so we don't * get garbage. */ state->ks_mode = K_XLATE; state->ks_iface = uaa->iface; state->ks_uaa = uaa; state->ks_ifstate = 0; callout_init_mp(&state->ks_timeout); /* * FIXME: set the initial value for lock keys in ks_state * according to the BIOS data? */ KBD_PROBE_DONE(kbd); } if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { if (KBD_HAS_DEVICE(kbd) && init_keyboard((ukbd_state_t *)kbd->kb_data, &kbd->kb_type, kbd->kb_flags)) { return ENXIO; } ukbd_ioctl(kbd, KDSETLED, (caddr_t)&(state->ks_state)); } if (!KBD_IS_CONFIGURED(kbd)) { if (kbd_register(kbd) < 0) { kbd->kb_flags = 0; /* XXX: Missing free()'s */ return ENXIO; } if (ukbd_enable_intr(kbd, TRUE, (usbd_intr_t *)data[1]) == 0) ukbd_timeout((void *)kbd); KBD_CONFIG_DONE(kbd); } return 0; } static int ukbd_enable_intr(keyboard_t *kbd, int on, usbd_intr_t *func) { ukbd_state_t *state = (ukbd_state_t *)kbd->kb_data; usbd_status err; if (on) { /* Set up interrupt pipe. */ if (state->ks_ifstate & INTRENABLED) { return EBUSY; } state->ks_ifstate |= INTRENABLED; err = usbd_open_pipe_intr(state->ks_iface, state->ks_ep_addr, USBD_SHORT_XFER_OK | USBD_CALLBACK_LAST, &state->ks_intrpipe, kbd, &state->ks_ndata, sizeof(state->ks_ndata), func, USBD_DEFAULT_INTERVAL); if (err) { return (EIO); } } else { /* Disable interrupts. */ usbd_abort_pipe(state->ks_intrpipe); usbd_close_pipe(state->ks_intrpipe); state->ks_ifstate &= ~INTRENABLED; } return (0); } /* finish using this keyboard */ static int ukbd_term(keyboard_t *kbd) { ukbd_state_t *state; int error; crit_enter(); state = (ukbd_state_t *)kbd->kb_data; DPRINTF(("ukbd_term: ks_ifstate=0x%x\n", state->ks_ifstate)); callout_stop(&state->ks_timeout); if (state->ks_ifstate & INTRENABLED) ukbd_enable_intr(kbd, FALSE, NULL); if (state->ks_ifstate & INTRENABLED) { crit_exit(); DPRINTF(("ukbd_term: INTRENABLED!\n")); return ENXIO; } error = kbd_unregister(kbd); DPRINTF(("ukbd_term: kbd_unregister() %d\n", error)); if (error == 0) { kbd->kb_flags = 0; if (kbd != &default_kbd) { kfree(kbd->kb_keymap, M_DEVBUF); kfree(kbd->kb_accentmap, M_DEVBUF); kfree(kbd->kb_fkeytab, M_DEVBUF); kfree(state, M_DEVBUF); kfree(kbd, M_DEVBUF); } } crit_exit(); return error; } /* keyboard interrupt routine */ static void ukbd_timeout(void *arg) { keyboard_t *kbd; ukbd_state_t *state; kbd = (keyboard_t *)arg; state = (ukbd_state_t *)kbd->kb_data; crit_enter(); kbd_intr(kbd, (void *)USBD_NORMAL_COMPLETION); callout_reset(&state->ks_timeout, hz / 40, ukbd_timeout, arg); crit_exit(); } static int ukbd_interrupt(keyboard_t *kbd, void *arg) { usbd_status status = (usbd_status)arg; ukbd_state_t *state; struct ukbd_data *ud; struct timeval tv; u_long now; int mod, omod; int key, c; int i, j; DPRINTFN(5, ("ukbd_intr: status=%d\n", status)); if (status == USBD_CANCELLED) return 0; state = (ukbd_state_t *)kbd->kb_data; ud = &state->ks_ndata; if (status != USBD_NORMAL_COMPLETION) { DPRINTF(("ukbd_intr: status=%d\n", status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall_async(state->ks_intrpipe); return 0; } if (ud->keycode[0] == KEY_ERROR) { return 0; /* ignore */ } getmicrouptime(&tv); now = (u_long)tv.tv_sec*1000 + (u_long)tv.tv_usec/1000; #define ADDKEY1(c) \ if (state->ks_inputs < INPUTBUFSIZE) { \ state->ks_input[state->ks_inputtail] = (c); \ ++state->ks_inputs; \ state->ks_inputtail = (state->ks_inputtail + 1)%INPUTBUFSIZE; \ } mod = ud->modifiers; omod = state->ks_odata.modifiers; if (mod != omod) { for (i = 0; i < NMOD; i++) if (( mod & ukbd_mods[i].mask) != (omod & ukbd_mods[i].mask)) ADDKEY1(ukbd_mods[i].key | (mod & ukbd_mods[i].mask ? KEY_PRESS : KEY_RELEASE)); } /* Check for released keys. */ for (i = 0; i < NKEYCODE; i++) { key = state->ks_odata.keycode[i]; if (key == 0) continue; for (j = 0; j < NKEYCODE; j++) { if (ud->keycode[j] == 0) continue; if (key == ud->keycode[j]) goto rfound; } ADDKEY1(key | KEY_RELEASE); rfound: ; } /* Check for pressed keys. */ for (i = 0; i < NKEYCODE; i++) { key = ud->keycode[i]; if (key == 0) continue; state->ks_ntime[i] = now + kbd->kb_delay1; for (j = 0; j < NKEYCODE; j++) { if (state->ks_odata.keycode[j] == 0) continue; if (key == state->ks_odata.keycode[j]) { state->ks_ntime[i] = state->ks_otime[j]; if (state->ks_otime[j] > now) goto pfound; state->ks_ntime[i] = now + kbd->kb_delay2; break; } } ADDKEY1(key | KEY_PRESS); /* * If any other key is presently down, force its repeat to be * well in the future (100s). This makes the last key to be * pressed do the autorepeat. */ for (j = 0; j < NKEYCODE; j++) { if (j != i) state->ks_ntime[j] = now + 100 * 1000; } pfound: ; } state->ks_odata = *ud; bcopy(state->ks_ntime, state->ks_otime, sizeof(state->ks_ntime)); if (state->ks_inputs <= 0) { return 0; } #ifdef USB_DEBUG for (i = state->ks_inputhead, j = 0; j < state->ks_inputs; ++j, i = (i + 1)%INPUTBUFSIZE) { c = state->ks_input[i]; DPRINTF(("0x%x (%d) %s\n", c, c, (c & KEY_RELEASE) ? "released":"pressed")); } if (ud->modifiers) DPRINTF(("mod:0x%04x ", ud->modifiers)); for (i = 0; i < NKEYCODE; i++) { if (ud->keycode[i]) DPRINTF(("%d ", ud->keycode[i])); } DPRINTF(("\n")); #endif /* USB_DEBUG */ if (state->ks_polling) { return 0; } if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { /* let the callback function to process the input */ (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, kbd->kb_callback.kc_arg); } else { /* read and discard the input; no one is waiting for it */ do { c = ukbd_read_char(kbd, FALSE); } while (c != NOKEY); } return 0; } static int ukbd_getc(ukbd_state_t *state, int wait) { int c; if (state->ks_polling) { DPRINTFN(1,("ukbd_getc: polling\n")); crit_enter(); while (state->ks_inputs <= 0) { usbd_dopoll(state->ks_iface); if (wait == 0) break; } crit_exit(); } crit_enter(); if (state->ks_inputs <= 0) { c = -1; } else { c = state->ks_input[state->ks_inputhead]; --state->ks_inputs; state->ks_inputhead = (state->ks_inputhead + 1)%INPUTBUFSIZE; } crit_exit(); return c; } /* test the interface to the device */ static int ukbd_test_if(keyboard_t *kbd) { return 0; } /* * Enable the access to the device; until this function is called, * the client cannot read from the keyboard. */ static int ukbd_enable(keyboard_t *kbd) { crit_enter(); KBD_ACTIVATE(kbd); crit_exit(); return 0; } /* disallow the access to the device */ static int ukbd_disable(keyboard_t *kbd) { crit_enter(); KBD_DEACTIVATE(kbd); crit_exit(); return 0; } /* read one byte from the keyboard if it's allowed */ static int ukbd_read(keyboard_t *kbd, int wait) { ukbd_state_t *state; int usbcode; #ifdef UKBD_EMULATE_ATSCANCODE int keycode; int scancode; #endif state = (ukbd_state_t *)kbd->kb_data; #ifdef UKBD_EMULATE_ATSCANCODE if (state->ks_buffered_char[0]) { scancode = state->ks_buffered_char[0]; if (scancode & SCAN_PREFIX) { state->ks_buffered_char[0] = scancode & ~SCAN_PREFIX; return ((scancode & SCAN_PREFIX_E0) ? 0xe0 : 0xe1); } else { state->ks_buffered_char[0] = state->ks_buffered_char[1]; state->ks_buffered_char[1] = 0; return scancode; } } #endif /* UKBD_EMULATE_ATSCANCODE */ usbcode = ukbd_getc(state, wait); if (!KBD_IS_ACTIVE(kbd) || (usbcode == -1)) { return -1; } ++kbd->kb_count; #ifdef UKBD_EMULATE_ATSCANCODE keycode = ukbd_trtab[KEY_INDEX(usbcode)]; if (keycode == NN) { return -1; } scancode = keycode2scancode(keycode, state->ks_ndata.modifiers, usbcode & KEY_RELEASE); if (scancode & SCAN_PREFIX) { if (scancode & SCAN_PREFIX_CTL) { state->ks_buffered_char[0] = 0x1d | (scancode & SCAN_RELEASE); /* Ctrl */ state->ks_buffered_char[1] = scancode & ~SCAN_PREFIX; } else if (scancode & SCAN_PREFIX_SHIFT) { state->ks_buffered_char[0] = 0x2a | (scancode & SCAN_RELEASE); /* Shift */ state->ks_buffered_char[1] = scancode & ~SCAN_PREFIX_SHIFT; } else { state->ks_buffered_char[0] = scancode & ~SCAN_PREFIX; state->ks_buffered_char[1] = 0; } return ((scancode & SCAN_PREFIX_E0) ? 0xe0 : 0xe1); } return scancode; #else /* !UKBD_EMULATE_ATSCANCODE */ return usbcode; #endif /* UKBD_EMULATE_ATSCANCODE */ } /* check if data is waiting */ static int ukbd_check(keyboard_t *kbd) { ukbd_state_t *state; if (!KBD_IS_ACTIVE(kbd)) { return FALSE; } state = (ukbd_state_t *)kbd->kb_data; if (state->ks_polling) { crit_enter(); usbd_dopoll(state->ks_iface); crit_exit(); } #ifdef UKBD_EMULATE_ATSCANCODE if (((ukbd_state_t *)kbd->kb_data)->ks_buffered_char[0]) { return TRUE; } #endif if (((ukbd_state_t *)kbd->kb_data)->ks_inputs > 0) { return TRUE; } return FALSE; } /* read char from the keyboard */ static u_int ukbd_read_char(keyboard_t *kbd, int wait) { ukbd_state_t *state; u_int action; int usbcode; int keycode; #ifdef UKBD_EMULATE_ATSCANCODE int scancode; #endif state = (ukbd_state_t *)kbd->kb_data; next_code: /* do we have a composed char to return? */ if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { action = state->ks_composed_char; state->ks_composed_char = 0; if (action > UCHAR_MAX) { return ERRKEY; } return action; } #ifdef UKBD_EMULATE_ATSCANCODE /* do we have a pending raw scan code? */ if (state->ks_mode == K_RAW) { if (state->ks_buffered_char[0]) { scancode = state->ks_buffered_char[0]; if (scancode & SCAN_PREFIX) { state->ks_buffered_char[0] = scancode & ~SCAN_PREFIX; return ((scancode & SCAN_PREFIX_E0) ? 0xe0 : 0xe1); } else { state->ks_buffered_char[0] = state->ks_buffered_char[1]; state->ks_buffered_char[1] = 0; return scancode; } } } #endif /* UKBD_EMULATE_ATSCANCODE */ /* see if there is something in the keyboard port */ /* XXX */ usbcode = ukbd_getc(state, wait); if (usbcode == -1) { return NOKEY; } ++kbd->kb_count; #ifdef UKBD_EMULATE_ATSCANCODE /* USB key index -> key code -> AT scan code */ keycode = ukbd_trtab[KEY_INDEX(usbcode)]; if (keycode == NN) { return NOKEY; } /* return an AT scan code for the K_RAW mode */ if (state->ks_mode == K_RAW) { scancode = keycode2scancode(keycode, state->ks_ndata.modifiers, usbcode & KEY_RELEASE); if (scancode & SCAN_PREFIX) { if (scancode & SCAN_PREFIX_CTL) { state->ks_buffered_char[0] = 0x1d | (scancode & SCAN_RELEASE); state->ks_buffered_char[1] = scancode & ~SCAN_PREFIX; } else if (scancode & SCAN_PREFIX_SHIFT) { state->ks_buffered_char[0] = 0x2a | (scancode & SCAN_RELEASE); state->ks_buffered_char[1] = scancode & ~SCAN_PREFIX_SHIFT; } else { state->ks_buffered_char[0] = scancode & ~SCAN_PREFIX; state->ks_buffered_char[1] = 0; } return ((scancode & SCAN_PREFIX_E0) ? 0xe0 : 0xe1); } return scancode; } #else /* !UKBD_EMULATE_ATSCANCODE */ /* return the byte as is for the K_RAW mode */ if (state->ks_mode == K_RAW) { return usbcode; } /* USB key index -> key code */ keycode = ukbd_trtab[KEY_INDEX(usbcode)]; if (keycode == NN) { return NOKEY; } #endif /* UKBD_EMULATE_ATSCANCODE */ switch (keycode) { case 0x38: /* left alt (compose key) */ if (usbcode & KEY_RELEASE) { if (state->ks_flags & COMPOSE) { state->ks_flags &= ~COMPOSE; if (state->ks_composed_char > UCHAR_MAX) state->ks_composed_char = 0; } } else { if (!(state->ks_flags & COMPOSE)) { state->ks_flags |= COMPOSE; state->ks_composed_char = 0; } } break; /* XXX: I don't like these... */ case 0x5c: /* print screen */ if (state->ks_flags & ALTS) keycode = 0x54; /* sysrq */ break; case 0x68: /* pause/break */ if (state->ks_flags & CTLS) keycode = 0x6c; /* break */ break; } /* return the key code in the K_CODE mode */ if (usbcode & KEY_RELEASE) keycode |= SCAN_RELEASE; if (state->ks_mode == K_CODE) { return keycode; } /* compose a character code */ if (state->ks_flags & COMPOSE) { switch (keycode) { /* key pressed, process it */ case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ state->ks_composed_char *= 10; state->ks_composed_char += keycode - 0x40; if (state->ks_composed_char > UCHAR_MAX) { return ERRKEY; } goto next_code; case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ state->ks_composed_char *= 10; state->ks_composed_char += keycode - 0x47; if (state->ks_composed_char > UCHAR_MAX) { return ERRKEY; } goto next_code; case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ state->ks_composed_char *= 10; state->ks_composed_char += keycode - 0x4E; if (state->ks_composed_char > UCHAR_MAX) { return ERRKEY; } goto next_code; case 0x52: /* keypad 0 */ state->ks_composed_char *= 10; if (state->ks_composed_char > UCHAR_MAX) { return ERRKEY; } goto next_code; /* key released, no interest here */ case SCAN_RELEASE | 0x47: case SCAN_RELEASE | 0x48: case SCAN_RELEASE | 0x49: /* keypad 7,8,9 */ case SCAN_RELEASE | 0x4B: case SCAN_RELEASE | 0x4C: case SCAN_RELEASE | 0x4D: /* keypad 4,5,6 */ case SCAN_RELEASE | 0x4F: case SCAN_RELEASE | 0x50: case SCAN_RELEASE | 0x51: /* keypad 1,2,3 */ case SCAN_RELEASE | 0x52: /* keypad 0 */ goto next_code; case 0x38: /* left alt key */ break; default: if (state->ks_composed_char > 0) { state->ks_flags &= ~COMPOSE; state->ks_composed_char = 0; return ERRKEY; } break; } } /* keycode to key action */ action = genkbd_keyaction(kbd, SCAN_CHAR(keycode), keycode & SCAN_RELEASE, &state->ks_state, &state->ks_accents); if (action == NOKEY) { goto next_code; } else { return action; } /* NOTREACHED */ } /* check if char is waiting */ static int ukbd_check_char(keyboard_t *kbd) { ukbd_state_t *state; int ret; if (!KBD_IS_ACTIVE(kbd)) { return FALSE; } state = (ukbd_state_t *)kbd->kb_data; if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { return TRUE; } ret = (ukbd_check(kbd)); return ret; } /* some useful control functions */ static int ukbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) { /* trasnlate LED_XXX bits into the device specific bits */ static u_char ledmap[8] = { 0, 2, 1, 3, 4, 6, 5, 7, }; ukbd_state_t *state = kbd->kb_data; int i; crit_enter(); switch (cmd) { case KDGKBMODE: /* get keyboard mode */ *(int *)arg = state->ks_mode; break; case KDSKBMODE: /* set keyboard mode */ switch (*(int *)arg) { case K_XLATE: if (state->ks_mode != K_XLATE) { /* make lock key state and LED state match */ state->ks_state &= ~LOCK_MASK; state->ks_state |= KBD_LED_VAL(kbd); } /* FALLTHROUGH */ case K_RAW: case K_CODE: if (state->ks_mode != *(int *)arg) { ukbd_clear_state(kbd); state->ks_mode = *(int *)arg; kbd->kb_savemode = state->ks_mode; } break; default: crit_exit(); return EINVAL; } break; case KDGETLED: /* get keyboard LED */ *(int *)arg = KBD_LED_VAL(kbd); break; case KDSETLED: /* set keyboard LED */ /* NOTE: lock key state in ks_state won't be changed */ if (*(int *)arg & ~LOCK_MASK) { crit_exit(); return EINVAL; } i = *(int *)arg; /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ if (state->ks_mode == K_XLATE && kbd->kb_keymap->n_keys > ALTGR_OFFSET) { if (i & ALKED) i |= CLKED; else i &= ~CLKED; } if (KBD_HAS_DEVICE(kbd)) { set_leds(state, ledmap[i & LED_MASK]); /* XXX: error check? */ } KBD_LED_VAL(kbd) = *(int *)arg; break; case KDGKBSTATE: /* get lock key state */ *(int *)arg = state->ks_state & LOCK_MASK; break; case KDSKBSTATE: /* set lock key state */ if (*(int *)arg & ~LOCK_MASK) { crit_exit(); return EINVAL; } state->ks_state &= ~LOCK_MASK; state->ks_state |= *(int *)arg; crit_exit(); /* set LEDs and quit */ return ukbd_ioctl(kbd, KDSETLED, arg); case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ crit_exit(); if (!KBD_HAS_DEVICE(kbd)) { return 0; } if (((int *)arg)[1] < 0) { return EINVAL; } if (((int *)arg)[0] < 0) { return EINVAL; } else if (((int *)arg)[0] == 0) /* fastest possible value */ kbd->kb_delay1 = 200; else kbd->kb_delay1 = ((int *)arg)[0]; kbd->kb_delay2 = ((int *)arg)[1]; return 0; case KDSETRAD: /* set keyboard repeat rate (old interface) */ crit_exit(); return set_typematic(kbd, *(int *)arg); case PIO_KEYMAP: /* set keyboard translation table */ case PIO_KEYMAPENT: /* set keyboard translation table entry */ case PIO_DEADKEYMAP: /* set accent key translation table */ state->ks_accents = 0; /* FALLTHROUGH */ default: crit_exit(); return genkbd_commonioctl(kbd, cmd, arg); #ifdef USB_DEBUG case USB_SETDEBUG: ukbddebug = *(int *)arg; break; #endif } crit_exit(); return 0; } /* lock the access to the keyboard */ static int ukbd_lock(keyboard_t *kbd, int lock) { /* XXX ? */ return TRUE; } /* clear the internal state of the keyboard */ static void ukbd_clear_state(keyboard_t *kbd) { ukbd_state_t *state; state = (ukbd_state_t *)kbd->kb_data; state->ks_flags = 0; state->ks_polling = 0; state->ks_state &= LOCK_MASK; /* preserve locking key state */ state->ks_accents = 0; state->ks_composed_char = 0; #ifdef UKBD_EMULATE_ATSCANCODE state->ks_buffered_char[0] = 0; state->ks_buffered_char[1] = 0; #endif bzero(&state->ks_ndata, sizeof(state->ks_ndata)); bzero(&state->ks_odata, sizeof(state->ks_odata)); bzero(&state->ks_ntime, sizeof(state->ks_ntime)); bzero(&state->ks_otime, sizeof(state->ks_otime)); } /* save the internal state */ static int ukbd_get_state(keyboard_t *kbd, void *buf, size_t len) { if (len == 0) return sizeof(ukbd_state_t); if (len < sizeof(ukbd_state_t)) return -1; bcopy(kbd->kb_data, buf, sizeof(ukbd_state_t)); return 0; } /* set the internal state */ static int ukbd_set_state(keyboard_t *kbd, void *buf, size_t len) { if (len < sizeof(ukbd_state_t)) return ENOMEM; bcopy(buf, kbd->kb_data, sizeof(ukbd_state_t)); return 0; } static int ukbd_poll(keyboard_t *kbd, int on) { ukbd_state_t *state; usbd_device_handle dev; state = (ukbd_state_t *)kbd->kb_data; usbd_interface2device_handle(state->ks_iface, &dev); crit_enter(); if (on) { ++state->ks_polling; if (state->ks_polling == 1) usbd_set_polling(dev, on); } else { --state->ks_polling; if (state->ks_polling == 0) usbd_set_polling(dev, on); } crit_exit(); return 0; } /* local functions */ static int probe_keyboard(struct usb_attach_arg *uaa, int flags) { usb_interface_descriptor_t *id; if (!uaa->iface) /* we attach to ifaces only */ return EINVAL; /* Check that this is a keyboard that speaks the boot protocol. */ id = usbd_get_interface_descriptor(uaa->iface); if (id && id->bInterfaceClass == UICLASS_HID && id->bInterfaceSubClass == UISUBCLASS_BOOT && id->bInterfaceProtocol == UIPROTO_BOOT_KEYBOARD) return 0; /* found it */ return EINVAL; } static int init_keyboard(ukbd_state_t *state, int *type, int flags) { usb_endpoint_descriptor_t *ed; usbd_status err; *type = KB_OTHER; state->ks_ifstate |= DISCONNECTED; ed = usbd_interface2endpoint_descriptor(state->ks_iface, 0); if (!ed) { kprintf("ukbd: could not read endpoint descriptor\n"); return EIO; } DPRINTFN(10,("ukbd:init_keyboard: \ bLength=%d bDescriptorType=%d bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d bInterval=%d\n", ed->bLength, ed->bDescriptorType, UE_GET_ADDR(ed->bEndpointAddress), UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? "in":"out", UE_GET_XFERTYPE(ed->bmAttributes), UGETW(ed->wMaxPacketSize), ed->bInterval)); if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN || UE_GET_XFERTYPE(ed->bmAttributes) != UE_INTERRUPT) { kprintf("ukbd: unexpected endpoint\n"); return EINVAL; } if ((usbd_get_quirks(state->ks_uaa->device)->uq_flags & UQ_NO_SET_PROTO) == 0) { err = usbd_set_protocol(state->ks_iface, 0); DPRINTFN(5, ("ukbd:init_keyboard: protocol set\n")); if (err) { kprintf("ukbd: set protocol failed\n"); return EIO; } } /* Ignore if SETIDLE fails since it is not crucial. */ usbd_set_idle(state->ks_iface, 0, 0); state->ks_ep_addr = ed->bEndpointAddress; state->ks_ifstate &= ~DISCONNECTED; return 0; } static void set_leds(ukbd_state_t *state, int leds) { u_int8_t res = leds; DPRINTF(("ukbd:set_leds: state=%p leds=%d\n", state, leds)); usbd_set_report_async(state->ks_iface, UHID_OUTPUT_REPORT, 0, &res, 1); } static int set_typematic(keyboard_t *kbd, int code) { static int delays[] = { 250, 500, 750, 1000 }; static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 68, 76, 84, 92, 100, 110, 118, 126, 136, 152, 168, 184, 200, 220, 236, 252, 272, 304, 336, 368, 400, 440, 472, 504 }; if (code & ~0x7f) return EINVAL; kbd->kb_delay1 = delays[(code >> 5) & 3]; kbd->kb_delay2 = rates[code & 0x1f]; return 0; } #ifdef UKBD_EMULATE_ATSCANCODE static int keycode2scancode(int keycode, int shift, int up) { static int scan[] = { 0x1c, 0x1d, 0x35, 0x37 | SCAN_PREFIX_SHIFT, /* PrintScreen */ 0x38, 0x47, 0x48, 0x49, 0x4b, 0x4d, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x46, /* XXX Pause/Break */ 0x5b, 0x5c, 0x5d, }; int scancode; scancode = keycode; if ((keycode >= 89) && (keycode < 89 + NELEM(scan))) scancode = scan[keycode - 89] | SCAN_PREFIX_E0; /* Pause/Break */ if ((keycode == 104) && !(shift & (MOD_CONTROL_L | MOD_CONTROL_R))) scancode = 0x45 | SCAN_PREFIX_E1 | SCAN_PREFIX_CTL; if (shift & (MOD_SHIFT_L | MOD_SHIFT_R)) scancode &= ~SCAN_PREFIX_SHIFT; return (scancode | (up ? SCAN_RELEASE : SCAN_PRESS)); } #endif /* UKBD_EMULATE_ATSCANCODE */ static int ukbd_driver_load(module_t mod, int what, void *arg) { switch (what) { case MOD_LOAD: kbd_add_driver(&ukbd_kbd_driver); break; case MOD_UNLOAD: kbd_delete_driver(&ukbd_kbd_driver); break; } return usbd_driver_load(mod, what, 0); }