atkbd.c revision 55731
142421Syokota/*- 242421Syokota * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 342421Syokota * All rights reserved. 442421Syokota * 542421Syokota * Redistribution and use in source and binary forms, with or without 642421Syokota * modification, are permitted provided that the following conditions 742421Syokota * are met: 842421Syokota * 1. Redistributions of source code must retain the above copyright 942421Syokota * notice, this list of conditions and the following disclaimer as 1042421Syokota * the first lines of this file unmodified. 1142421Syokota * 2. Redistributions in binary form must reproduce the above copyright 1242421Syokota * notice, this list of conditions and the following disclaimer in the 1342421Syokota * documentation and/or other materials provided with the distribution. 1442421Syokota * 1542421Syokota * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 1642421Syokota * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1742421Syokota * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1842421Syokota * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 1942421Syokota * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2042421Syokota * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2142421Syokota * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2242421Syokota * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2342421Syokota * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2442421Syokota * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2542421Syokota * 2650477Speter * $FreeBSD: head/sys/dev/atkbdc/atkbd.c 55731 2000-01-10 08:52:32Z yokota $ 2742421Syokota */ 2842421Syokota 2942421Syokota#include "atkbd.h" 3042421Syokota#include "opt_kbd.h" 3144628Syokota#include "opt_atkbd.h" 3242421Syokota 3342421Syokota#if NATKBD > 0 3442421Syokota 3542421Syokota#include <sys/param.h> 3642421Syokota#include <sys/systm.h> 3742421Syokota#include <sys/kernel.h> 3847336Syokota#include <sys/bus.h> 3942421Syokota#include <sys/proc.h> 4042421Syokota#include <sys/malloc.h> 4142421Syokota 4255731Syokota#ifdef __i386__ 4355731Syokota#include <machine/md_var.h> 4455731Syokota#include <machine/psl.h> 4555731Syokota#include <machine/vm86.h> 4655731Syokota#include <machine/pc/bios.h> 4755731Syokota 4855731Syokota#include <vm/vm.h> 4955731Syokota#include <vm/pmap.h> 5055731Syokota#endif /* __i386__ */ 5155731Syokota 5242421Syokota#include <dev/kbd/kbdreg.h> 5342421Syokota#include <dev/kbd/atkbdreg.h> 5442421Syokota#include <dev/kbd/atkbdcreg.h> 5542421Syokota 5642831Syokota#include <isa/isareg.h> 5742831Syokota 5842421Syokotastatic timeout_t atkbd_timeout; 5942421Syokota 6042421Syokotaint 6144628Syokotaatkbd_probe_unit(int unit, int port, int irq, int flags) 6242421Syokota{ 6342421Syokota keyboard_switch_t *sw; 6442421Syokota int args[2]; 6544628Syokota int error; 6642421Syokota 6742421Syokota sw = kbd_get_switch(ATKBD_DRIVER_NAME); 6842421Syokota if (sw == NULL) 6942421Syokota return ENXIO; 7042421Syokota 7142421Syokota args[0] = port; 7242421Syokota args[1] = irq; 7344628Syokota error = (*sw->probe)(unit, args, flags); 7444628Syokota if (error) 7544628Syokota return error; 7644628Syokota return 0; 7742421Syokota} 7842421Syokota 7942421Syokotaint 8050154Syokotaatkbd_attach_unit(int unit, keyboard_t **kbd, int port, int irq, int flags) 8142421Syokota{ 8242421Syokota keyboard_switch_t *sw; 8344628Syokota int args[2]; 8442421Syokota int error; 8542421Syokota 8642421Syokota sw = kbd_get_switch(ATKBD_DRIVER_NAME); 8742421Syokota if (sw == NULL) 8842421Syokota return ENXIO; 8942421Syokota 9042421Syokota /* reset, initialize and enable the device */ 9144628Syokota args[0] = port; 9244628Syokota args[1] = irq; 9350154Syokota *kbd = NULL; 9444628Syokota error = (*sw->probe)(unit, args, flags); 9542421Syokota if (error) 9644628Syokota return error; 9750154Syokota error = (*sw->init)(unit, kbd, args, flags); 9844628Syokota if (error) 9944628Syokota return error; 10050154Syokota (*sw->enable)(*kbd); 10142421Syokota 10242421Syokota#ifdef KBD_INSTALL_CDEV 10342421Syokota /* attach a virtual keyboard cdev */ 10450154Syokota error = kbd_attach(*kbd); 10542421Syokota if (error) 10642421Syokota return error; 10742421Syokota#endif 10842421Syokota 10942421Syokota /* 11042421Syokota * This is a kludge to compensate for lost keyboard interrupts. 11142421Syokota * A similar code used to be in syscons. See below. XXX 11242421Syokota */ 11350154Syokota atkbd_timeout(*kbd); 11442421Syokota 11542421Syokota if (bootverbose) 11650154Syokota (*sw->diag)(*kbd, bootverbose); 11742421Syokota return 0; 11842421Syokota} 11942421Syokota 12042421Syokotastatic void 12142421Syokotaatkbd_timeout(void *arg) 12242421Syokota{ 12342421Syokota keyboard_t *kbd; 12442421Syokota int s; 12542421Syokota 12642421Syokota /* The following comments are extracted from syscons.c (1.287) */ 12742421Syokota /* 12842421Syokota * With release 2.1 of the Xaccel server, the keyboard is left 12942421Syokota * hanging pretty often. Apparently an interrupt from the 13042421Syokota * keyboard is lost, and I don't know why (yet). 13142421Syokota * This ugly hack calls scintr if input is ready for the keyboard 13242421Syokota * and conveniently hides the problem. XXX 13342421Syokota */ 13442421Syokota /* 13542421Syokota * Try removing anything stuck in the keyboard controller; whether 13642421Syokota * it's a keyboard scan code or mouse data. `scintr()' doesn't 13742421Syokota * read the mouse data directly, but `kbdio' routines will, as a 13842421Syokota * side effect. 13942421Syokota */ 14042421Syokota s = spltty(); 14142421Syokota kbd = (keyboard_t *)arg; 14242421Syokota if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) { 14342421Syokota /* 14442421Syokota * We have seen the lock flag is not set. Let's reset 14542421Syokota * the flag early, otherwise the LED update routine fails 14642421Syokota * which may want the lock during the interrupt routine. 14742421Syokota */ 14842421Syokota (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE); 14942421Syokota if ((*kbdsw[kbd->kb_index]->check_char)(kbd)) 15044628Syokota (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 15142421Syokota } 15242421Syokota splx(s); 15342421Syokota timeout(atkbd_timeout, arg, hz/10); 15442421Syokota} 15542421Syokota 15642421Syokota/* cdev driver functions */ 15742421Syokota 15842421Syokota 15942421Syokota/* LOW-LEVEL */ 16042421Syokota 16142421Syokota#include <machine/limits.h> 16242421Syokota#include <machine/console.h> 16342421Syokota#include <machine/clock.h> 16442421Syokota 16542421Syokota#define ATKBD_DEFAULT 0 16642421Syokota 16742421Syokotatypedef struct atkbd_state { 16842421Syokota KBDC kbdc; /* keyboard controller */ 16942421Syokota /* XXX: don't move this field; pcvt 17042421Syokota * expects `kbdc' to be the first 17142421Syokota * field in this structure. */ 17242421Syokota int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 17342421Syokota int ks_flags; /* flags */ 17442421Syokota#define COMPOSE (1 << 0) 17544628Syokota int ks_polling; 17642421Syokota int ks_state; /* shift/lock key state */ 17742421Syokota int ks_accents; /* accent key index (> 0) */ 17842421Syokota u_int ks_composed_char; /* composed char code (> 0) */ 17942421Syokota u_char ks_prefix; /* AT scan code prefix */ 18042421Syokota} atkbd_state_t; 18142421Syokota 18242421Syokota/* keyboard driver declaration */ 18342421Syokotastatic int atkbd_configure(int flags); 18442421Syokotastatic kbd_probe_t atkbd_probe; 18542421Syokotastatic kbd_init_t atkbd_init; 18642421Syokotastatic kbd_term_t atkbd_term; 18742421Syokotastatic kbd_intr_t atkbd_intr; 18842421Syokotastatic kbd_test_if_t atkbd_test_if; 18942421Syokotastatic kbd_enable_t atkbd_enable; 19042421Syokotastatic kbd_disable_t atkbd_disable; 19142421Syokotastatic kbd_read_t atkbd_read; 19242421Syokotastatic kbd_check_t atkbd_check; 19342421Syokotastatic kbd_read_char_t atkbd_read_char; 19442421Syokotastatic kbd_check_char_t atkbd_check_char; 19542421Syokotastatic kbd_ioctl_t atkbd_ioctl; 19642421Syokotastatic kbd_lock_t atkbd_lock; 19742421Syokotastatic kbd_clear_state_t atkbd_clear_state; 19842421Syokotastatic kbd_get_state_t atkbd_get_state; 19942421Syokotastatic kbd_set_state_t atkbd_set_state; 20044628Syokotastatic kbd_poll_mode_t atkbd_poll; 20142421Syokota 20242421Syokotakeyboard_switch_t atkbdsw = { 20342421Syokota atkbd_probe, 20442421Syokota atkbd_init, 20542421Syokota atkbd_term, 20642421Syokota atkbd_intr, 20742421Syokota atkbd_test_if, 20842421Syokota atkbd_enable, 20942421Syokota atkbd_disable, 21042421Syokota atkbd_read, 21142421Syokota atkbd_check, 21242421Syokota atkbd_read_char, 21342421Syokota atkbd_check_char, 21442421Syokota atkbd_ioctl, 21542421Syokota atkbd_lock, 21642421Syokota atkbd_clear_state, 21742421Syokota atkbd_get_state, 21842421Syokota atkbd_set_state, 21942421Syokota genkbd_get_fkeystr, 22044628Syokota atkbd_poll, 22142421Syokota genkbd_diag, 22242421Syokota}; 22342421Syokota 22442421SyokotaKEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 22542421Syokota 22642421Syokota/* local functions */ 22755731Syokotastatic int get_typematic(keyboard_t *kbd); 22842421Syokotastatic int setup_kbd_port(KBDC kbdc, int port, int intr); 22942421Syokotastatic int get_kbd_echo(KBDC kbdc); 23042421Syokotastatic int probe_keyboard(KBDC kbdc, int flags); 23142421Syokotastatic int init_keyboard(KBDC kbdc, int *type, int flags); 23242421Syokotastatic int write_kbd(KBDC kbdc, int command, int data); 23342421Syokotastatic int get_kbd_id(KBDC kbdc); 23444628Syokotastatic int typematic(int delay, int rate); 23554543Syokotastatic int typematic_delay(int delay); 23654543Syokotastatic int typematic_rate(int rate); 23742421Syokota 23842421Syokota/* local variables */ 23942421Syokota 24042421Syokota/* the initial key map, accent map and fkey strings */ 24144628Syokota#ifdef ATKBD_DFLT_KEYMAP 24244628Syokota#define KBD_DFLT_KEYMAP 24344628Syokota#include "atkbdmap.h" 24444628Syokota#endif 24542831Syokota#include <dev/kbd/kbdtables.h> 24642421Syokota 24742421Syokota/* structures for the default keyboard */ 24842421Syokotastatic keyboard_t default_kbd; 24942421Syokotastatic atkbd_state_t default_kbd_state; 25042421Syokotastatic keymap_t default_keymap; 25142421Syokotastatic accentmap_t default_accentmap; 25242421Syokotastatic fkeytab_t default_fkeytab[NUM_FKEYS]; 25342421Syokota 25442421Syokota/* 25542421Syokota * The back door to the keyboard driver! 25642421Syokota * This function is called by the console driver, via the kbdio module, 25742421Syokota * to tickle keyboard drivers when the low-level console is being initialized. 25842421Syokota * Almost nothing in the kernel has been initialied yet. Try to probe 25942421Syokota * keyboards if possible. 26042421Syokota * NOTE: because of the way the low-level conole is initialized, this routine 26142421Syokota * may be called more than once!! 26242421Syokota */ 26342421Syokotastatic int 26442421Syokotaatkbd_configure(int flags) 26542421Syokota{ 26642421Syokota keyboard_t *kbd; 26742421Syokota int arg[2]; 26844628Syokota int i; 26942421Syokota 27048878Syokota /* probe the keyboard controller */ 27148878Syokota atkbdc_configure(); 27248878Syokota 27346764Syokota /* if the driver is disabled, unregister the keyboard if any */ 27446764Syokota if ((resource_int_value("atkbd", ATKBD_DEFAULT, "disabled", &i) == 0) 27546764Syokota && i != 0) { 27646764Syokota i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 27746764Syokota if (i >= 0) { 27846764Syokota kbd = kbd_get_keyboard(i); 27946764Syokota kbd_unregister(kbd); 28046764Syokota kbd->kb_flags &= ~KB_REGISTERED; 28144628Syokota } 28248878Syokota return 0; 28344628Syokota } 28445720Speter 28546764Syokota /* XXX: a kludge to obtain the device configuration flags */ 28646764Syokota if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 28746764Syokota flags |= i; 28846764Syokota 28942421Syokota /* probe the default keyboard */ 29042421Syokota arg[0] = -1; 29142421Syokota arg[1] = -1; 29244628Syokota kbd = NULL; 29344628Syokota if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 29442421Syokota return 0; 29544628Syokota if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 29644628Syokota return 0; 29742421Syokota 29844628Syokota /* return the number of found keyboards */ 29944628Syokota return 1; 30044628Syokota} 30144628Syokota 30244628Syokota/* low-level functions */ 30344628Syokota 30444628Syokota/* detect a keyboard */ 30544628Syokotastatic int 30644628Syokotaatkbd_probe(int unit, void *arg, int flags) 30744628Syokota{ 30844628Syokota KBDC kbdc; 30944628Syokota int *data = (int *)arg; 31044628Syokota 31144628Syokota /* XXX */ 31244628Syokota if (unit == ATKBD_DEFAULT) { 31344628Syokota if (KBD_IS_PROBED(&default_kbd)) 31442421Syokota return 0; 31542421Syokota } 31642421Syokota 31744628Syokota kbdc = kbdc_open(data[0]); 31844628Syokota if (kbdc == NULL) 31944628Syokota return ENXIO; 32044628Syokota if (probe_keyboard(kbdc, flags)) { 32144628Syokota if (flags & KB_CONF_FAIL_IF_NO_KBD) 32244628Syokota return ENXIO; 32342421Syokota } 32444628Syokota return 0; 32542421Syokota} 32642421Syokota 32744628Syokota/* reset and initialize the device */ 32842421Syokotastatic int 32944628Syokotaatkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 33042421Syokota{ 33142421Syokota keyboard_t *kbd; 33242421Syokota atkbd_state_t *state; 33342421Syokota keymap_t *keymap; 33442421Syokota accentmap_t *accmap; 33542421Syokota fkeytab_t *fkeymap; 33642421Syokota int fkeymap_size; 33755731Syokota int delay[2]; 33842421Syokota int *data = (int *)arg; 33942421Syokota 34042421Syokota /* XXX */ 34142421Syokota if (unit == ATKBD_DEFAULT) { 34242421Syokota *kbdp = kbd = &default_kbd; 34344628Syokota if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 34442421Syokota return 0; 34542421Syokota state = &default_kbd_state; 34642421Syokota keymap = &default_keymap; 34742421Syokota accmap = &default_accentmap; 34842421Syokota fkeymap = default_fkeytab; 34942421Syokota fkeymap_size = 35042421Syokota sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 35142421Syokota } else if (*kbdp == NULL) { 35242421Syokota *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT); 35342421Syokota if (kbd == NULL) 35442421Syokota return ENOMEM; 35542421Syokota bzero(kbd, sizeof(*kbd)); 35642421Syokota state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT); 35742421Syokota keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 35842421Syokota accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 35942421Syokota fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 36042421Syokota fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 36142421Syokota if ((state == NULL) || (keymap == NULL) || (accmap == NULL) 36242421Syokota || (fkeymap == NULL)) { 36342421Syokota if (state != NULL) 36442421Syokota free(state, M_DEVBUF); 36542421Syokota if (keymap != NULL) 36642421Syokota free(keymap, M_DEVBUF); 36742421Syokota if (accmap != NULL) 36842421Syokota free(accmap, M_DEVBUF); 36942421Syokota if (fkeymap != NULL) 37042421Syokota free(fkeymap, M_DEVBUF); 37142421Syokota free(kbd, M_DEVBUF); 37242421Syokota return ENOMEM; 37342421Syokota } 37442421Syokota bzero(state, sizeof(*state)); 37544628Syokota } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 37642421Syokota return 0; 37742421Syokota } else { 37842421Syokota kbd = *kbdp; 37942421Syokota state = (atkbd_state_t *)kbd->kb_data; 38042421Syokota bzero(state, sizeof(*state)); 38142421Syokota keymap = kbd->kb_keymap; 38242421Syokota accmap = kbd->kb_accentmap; 38342421Syokota fkeymap = kbd->kb_fkeytab; 38442421Syokota fkeymap_size = kbd->kb_fkeytab_size; 38542421Syokota } 38642421Syokota 38744628Syokota if (!KBD_IS_PROBED(kbd)) { 38844628Syokota state->kbdc = kbdc_open(data[0]); 38944628Syokota if (state->kbdc == NULL) 39042421Syokota return ENXIO; 39144628Syokota kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 39244628Syokota data[0], IO_KBDSIZE); 39344628Syokota bcopy(&key_map, keymap, sizeof(key_map)); 39444628Syokota bcopy(&accent_map, accmap, sizeof(accent_map)); 39544628Syokota bcopy(fkey_tab, fkeymap, 39644628Syokota imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 39744628Syokota kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 39844628Syokota kbd->kb_data = (void *)state; 39944628Syokota 40044628Syokota if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 40144628Syokota if (flags & KB_CONF_FAIL_IF_NO_KBD) 40244628Syokota return ENXIO; 40344628Syokota } else { 40444628Syokota KBD_FOUND_DEVICE(kbd); 40544628Syokota } 40644628Syokota atkbd_clear_state(kbd); 40744628Syokota state->ks_mode = K_XLATE; 40844628Syokota /* 40944628Syokota * FIXME: set the initial value for lock keys in ks_state 41044628Syokota * according to the BIOS data? 41144628Syokota */ 41244628Syokota KBD_PROBE_DONE(kbd); 41342421Syokota } 41444628Syokota if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 41549820Syokota kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 41642421Syokota if (KBD_HAS_DEVICE(kbd) 41744628Syokota && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 41844628Syokota && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) 41942421Syokota return ENXIO; 42044628Syokota atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 42155731Syokota get_typematic(kbd); 42255731Syokota delay[0] = kbd->kb_delay1; 42355731Syokota delay[1] = kbd->kb_delay2; 42455731Syokota atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 42542421Syokota KBD_INIT_DONE(kbd); 42642421Syokota } 42742421Syokota if (!KBD_IS_CONFIGURED(kbd)) { 42842421Syokota if (kbd_register(kbd) < 0) 42942421Syokota return ENXIO; 43042421Syokota KBD_CONFIG_DONE(kbd); 43142421Syokota } 43242421Syokota 43342421Syokota return 0; 43442421Syokota} 43542421Syokota 43642421Syokota/* finish using this keyboard */ 43742421Syokotastatic int 43842421Syokotaatkbd_term(keyboard_t *kbd) 43942421Syokota{ 44042421Syokota kbd_unregister(kbd); 44142421Syokota return 0; 44242421Syokota} 44342421Syokota 44442421Syokota/* keyboard interrupt routine */ 44542421Syokotastatic int 44644628Syokotaatkbd_intr(keyboard_t *kbd, void *arg) 44742421Syokota{ 44842421Syokota atkbd_state_t *state; 44955731Syokota int delay[2]; 45042421Syokota int c; 45142421Syokota 45242421Syokota if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 45342421Syokota /* let the callback function to process the input */ 45442421Syokota (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 45542421Syokota kbd->kb_callback.kc_arg); 45642421Syokota } else { 45742421Syokota /* read and discard the input; no one is waiting for input */ 45842421Syokota do { 45942421Syokota c = atkbd_read_char(kbd, FALSE); 46042421Syokota } while (c != NOKEY); 46142421Syokota 46242421Syokota if (!KBD_HAS_DEVICE(kbd)) { 46342421Syokota /* 46442421Syokota * The keyboard was not detected before; 46542421Syokota * it must have been reconnected! 46642421Syokota */ 46742421Syokota state = (atkbd_state_t *)kbd->kb_data; 46842421Syokota init_keyboard(state->kbdc, &kbd->kb_type, 46942421Syokota kbd->kb_config); 47042421Syokota atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 47155731Syokota get_typematic(kbd); 47255731Syokota delay[0] = kbd->kb_delay1; 47355731Syokota delay[1] = kbd->kb_delay2; 47455731Syokota atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 47542421Syokota KBD_FOUND_DEVICE(kbd); 47642421Syokota } 47742421Syokota } 47842421Syokota return 0; 47942421Syokota} 48042421Syokota 48142421Syokota/* test the interface to the device */ 48242421Syokotastatic int 48342421Syokotaatkbd_test_if(keyboard_t *kbd) 48442421Syokota{ 48542421Syokota int error; 48642421Syokota int s; 48742421Syokota 48842421Syokota error = 0; 48942421Syokota empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 49042421Syokota s = spltty(); 49142421Syokota if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 49242421Syokota error = EIO; 49342421Syokota else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 49442421Syokota error = EIO; 49542421Syokota splx(s); 49642421Syokota 49742421Syokota return error; 49842421Syokota} 49942421Syokota 50042421Syokota/* 50142421Syokota * Enable the access to the device; until this function is called, 50242421Syokota * the client cannot read from the keyboard. 50342421Syokota */ 50442421Syokotastatic int 50542421Syokotaatkbd_enable(keyboard_t *kbd) 50642421Syokota{ 50742421Syokota int s; 50842421Syokota 50942421Syokota s = spltty(); 51042421Syokota KBD_ACTIVATE(kbd); 51142421Syokota splx(s); 51242421Syokota return 0; 51342421Syokota} 51442421Syokota 51542421Syokota/* disallow the access to the device */ 51642421Syokotastatic int 51742421Syokotaatkbd_disable(keyboard_t *kbd) 51842421Syokota{ 51942421Syokota int s; 52042421Syokota 52142421Syokota s = spltty(); 52242421Syokota KBD_DEACTIVATE(kbd); 52342421Syokota splx(s); 52442421Syokota return 0; 52542421Syokota} 52642421Syokota 52742421Syokota/* read one byte from the keyboard if it's allowed */ 52842421Syokotastatic int 52942421Syokotaatkbd_read(keyboard_t *kbd, int wait) 53042421Syokota{ 53142421Syokota int c; 53242421Syokota 53342421Syokota if (wait) 53442421Syokota c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 53542421Syokota else 53642421Syokota c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 53754382Syokota if (c != -1) 53854382Syokota ++kbd->kb_count; 53942421Syokota return (KBD_IS_ACTIVE(kbd) ? c : -1); 54042421Syokota} 54142421Syokota 54242421Syokota/* check if data is waiting */ 54342421Syokotastatic int 54442421Syokotaatkbd_check(keyboard_t *kbd) 54542421Syokota{ 54642421Syokota if (!KBD_IS_ACTIVE(kbd)) 54742421Syokota return FALSE; 54842421Syokota return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 54942421Syokota} 55042421Syokota 55142421Syokota/* read char from the keyboard */ 55242421Syokotastatic u_int 55342421Syokotaatkbd_read_char(keyboard_t *kbd, int wait) 55442421Syokota{ 55542421Syokota atkbd_state_t *state; 55642421Syokota u_int action; 55742421Syokota int scancode; 55842421Syokota int keycode; 55942421Syokota 56042421Syokota state = (atkbd_state_t *)kbd->kb_data; 56142421Syokotanext_code: 56242421Syokota /* do we have a composed char to return? */ 56342421Syokota if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 56442421Syokota action = state->ks_composed_char; 56542421Syokota state->ks_composed_char = 0; 56642421Syokota if (action > UCHAR_MAX) 56742421Syokota return ERRKEY; 56842421Syokota return action; 56942421Syokota } 57042421Syokota 57142421Syokota /* see if there is something in the keyboard port */ 57242421Syokota if (wait) { 57342421Syokota do { 57442421Syokota scancode = read_kbd_data(state->kbdc); 57542421Syokota } while (scancode == -1); 57642421Syokota } else { 57742421Syokota scancode = read_kbd_data_no_wait(state->kbdc); 57842421Syokota if (scancode == -1) 57942421Syokota return NOKEY; 58042421Syokota } 58154382Syokota ++kbd->kb_count; 58242421Syokota 58354382Syokota#if KBDIO_DEBUG >= 10 58454382Syokota printf("atkbd_read_char(): scancode:0x%x\n", scancode); 58554382Syokota#endif 58654382Syokota 58742421Syokota /* return the byte as is for the K_RAW mode */ 58842421Syokota if (state->ks_mode == K_RAW) 58942421Syokota return scancode; 59042421Syokota 59142421Syokota /* translate the scan code into a keycode */ 59242421Syokota keycode = scancode & 0x7F; 59342421Syokota switch (state->ks_prefix) { 59442421Syokota case 0x00: /* normal scancode */ 59542421Syokota switch(scancode) { 59642421Syokota case 0xB8: /* left alt (compose key) released */ 59742421Syokota if (state->ks_flags & COMPOSE) { 59842421Syokota state->ks_flags &= ~COMPOSE; 59942421Syokota if (state->ks_composed_char > UCHAR_MAX) 60042421Syokota state->ks_composed_char = 0; 60142421Syokota } 60242421Syokota break; 60342421Syokota case 0x38: /* left alt (compose key) pressed */ 60442421Syokota if (!(state->ks_flags & COMPOSE)) { 60542421Syokota state->ks_flags |= COMPOSE; 60642421Syokota state->ks_composed_char = 0; 60742421Syokota } 60842421Syokota break; 60942421Syokota case 0xE0: 61042421Syokota case 0xE1: 61142421Syokota state->ks_prefix = scancode; 61242421Syokota goto next_code; 61342421Syokota } 61442421Syokota break; 61542421Syokota case 0xE0: /* 0xE0 prefix */ 61642421Syokota state->ks_prefix = 0; 61742421Syokota switch (keycode) { 61842421Syokota case 0x1C: /* right enter key */ 61942421Syokota keycode = 0x59; 62042421Syokota break; 62142421Syokota case 0x1D: /* right ctrl key */ 62242421Syokota keycode = 0x5A; 62342421Syokota break; 62442421Syokota case 0x35: /* keypad divide key */ 62542421Syokota keycode = 0x5B; 62642421Syokota break; 62742421Syokota case 0x37: /* print scrn key */ 62842421Syokota keycode = 0x5C; 62942421Syokota break; 63042421Syokota case 0x38: /* right alt key (alt gr) */ 63142421Syokota keycode = 0x5D; 63242421Syokota break; 63343337Syokota case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 63443337Syokota keycode = 0x68; 63543337Syokota break; 63642421Syokota case 0x47: /* grey home key */ 63742421Syokota keycode = 0x5E; 63842421Syokota break; 63942421Syokota case 0x48: /* grey up arrow key */ 64042421Syokota keycode = 0x5F; 64142421Syokota break; 64242421Syokota case 0x49: /* grey page up key */ 64342421Syokota keycode = 0x60; 64442421Syokota break; 64542421Syokota case 0x4B: /* grey left arrow key */ 64642421Syokota keycode = 0x61; 64742421Syokota break; 64842421Syokota case 0x4D: /* grey right arrow key */ 64942421Syokota keycode = 0x62; 65042421Syokota break; 65142421Syokota case 0x4F: /* grey end key */ 65242421Syokota keycode = 0x63; 65342421Syokota break; 65442421Syokota case 0x50: /* grey down arrow key */ 65542421Syokota keycode = 0x64; 65642421Syokota break; 65742421Syokota case 0x51: /* grey page down key */ 65842421Syokota keycode = 0x65; 65942421Syokota break; 66042421Syokota case 0x52: /* grey insert key */ 66142421Syokota keycode = 0x66; 66242421Syokota break; 66342421Syokota case 0x53: /* grey delete key */ 66442421Syokota keycode = 0x67; 66542421Syokota break; 66642421Syokota /* the following 3 are only used on the MS "Natural" keyboard */ 66742421Syokota case 0x5b: /* left Window key */ 66842421Syokota keycode = 0x69; 66942421Syokota break; 67042421Syokota case 0x5c: /* right Window key */ 67142421Syokota keycode = 0x6a; 67242421Syokota break; 67342421Syokota case 0x5d: /* menu key */ 67442421Syokota keycode = 0x6b; 67542421Syokota break; 67642421Syokota default: /* ignore everything else */ 67742421Syokota goto next_code; 67842421Syokota } 67942421Syokota break; 68042421Syokota case 0xE1: /* 0xE1 prefix */ 68143337Syokota /* 68243337Syokota * The pause/break key on the 101 keyboard produces: 68343337Syokota * E1-1D-45 E1-9D-C5 68443337Syokota * Ctrl-pause/break produces: 68543337Syokota * E0-46 E0-C6 (See above.) 68643337Syokota */ 68742421Syokota state->ks_prefix = 0; 68842421Syokota if (keycode == 0x1D) 68942421Syokota state->ks_prefix = 0x1D; 69042421Syokota goto next_code; 69142421Syokota /* NOT REACHED */ 69242421Syokota case 0x1D: /* pause / break */ 69342421Syokota state->ks_prefix = 0; 69442421Syokota if (keycode != 0x45) 69543337Syokota goto next_code; 69642421Syokota keycode = 0x68; 69742421Syokota break; 69842421Syokota } 69942421Syokota 70043337Syokota if (kbd->kb_type == KB_84) { 70143337Syokota switch (keycode) { 70243337Syokota case 0x37: /* *(numpad)/print screen */ 70343337Syokota if (state->ks_flags & SHIFTS) 70443337Syokota keycode = 0x5c; /* print screen */ 70543337Syokota break; 70643337Syokota case 0x45: /* num lock/pause */ 70743337Syokota if (state->ks_flags & CTLS) 70843337Syokota keycode = 0x68; /* pause */ 70943337Syokota break; 71043337Syokota case 0x46: /* scroll lock/break */ 71143337Syokota if (state->ks_flags & CTLS) 71243337Syokota keycode = 0x6c; /* break */ 71343337Syokota break; 71443337Syokota } 71543337Syokota } else if (kbd->kb_type == KB_101) { 71643337Syokota switch (keycode) { 71743337Syokota case 0x5c: /* print screen */ 71843337Syokota if (state->ks_flags & ALTS) 71943337Syokota keycode = 0x54; /* sysrq */ 72043337Syokota break; 72143337Syokota case 0x68: /* pause/break */ 72243337Syokota if (state->ks_flags & CTLS) 72343337Syokota keycode = 0x6c; /* break */ 72443337Syokota break; 72543337Syokota } 72643337Syokota } 72743337Syokota 72842421Syokota /* return the key code in the K_CODE mode */ 72942421Syokota if (state->ks_mode == K_CODE) 73042421Syokota return (keycode | (scancode & 0x80)); 73142421Syokota 73242421Syokota /* compose a character code */ 73342421Syokota if (state->ks_flags & COMPOSE) { 73447293Syokota switch (keycode | (scancode & 0x80)) { 73542421Syokota /* key pressed, process it */ 73642421Syokota case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 73742421Syokota state->ks_composed_char *= 10; 73846765Syokota state->ks_composed_char += keycode - 0x40; 73954382Syokota kbd->kb_prev_key = keycode | (scancode & 0x80); 74042421Syokota if (state->ks_composed_char > UCHAR_MAX) 74142421Syokota return ERRKEY; 74242421Syokota goto next_code; 74342421Syokota case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 74442421Syokota state->ks_composed_char *= 10; 74546765Syokota state->ks_composed_char += keycode - 0x47; 74654382Syokota kbd->kb_prev_key = keycode | (scancode & 0x80); 74742421Syokota if (state->ks_composed_char > UCHAR_MAX) 74842421Syokota return ERRKEY; 74942421Syokota goto next_code; 75042421Syokota case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 75142421Syokota state->ks_composed_char *= 10; 75246765Syokota state->ks_composed_char += keycode - 0x4E; 75354382Syokota kbd->kb_prev_key = keycode | (scancode & 0x80); 75442421Syokota if (state->ks_composed_char > UCHAR_MAX) 75542421Syokota return ERRKEY; 75642421Syokota goto next_code; 75742421Syokota case 0x52: /* keypad 0 */ 75842421Syokota state->ks_composed_char *= 10; 75954382Syokota kbd->kb_prev_key = keycode | (scancode & 0x80); 76042421Syokota if (state->ks_composed_char > UCHAR_MAX) 76142421Syokota return ERRKEY; 76242421Syokota goto next_code; 76342421Syokota 76442421Syokota /* key released, no interest here */ 76542421Syokota case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 76642421Syokota case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 76742421Syokota case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 76842421Syokota case 0xD2: /* keypad 0 */ 76954382Syokota kbd->kb_prev_key = keycode | (scancode & 0x80); 77042421Syokota goto next_code; 77142421Syokota 77242421Syokota case 0x38: /* left alt key */ 77342421Syokota break; 77442421Syokota 77542421Syokota default: 77642421Syokota if (state->ks_composed_char > 0) { 77742421Syokota state->ks_flags &= ~COMPOSE; 77842421Syokota state->ks_composed_char = 0; 77954382Syokota kbd->kb_prev_key = keycode | (scancode & 0x80); 78042421Syokota return ERRKEY; 78142421Syokota } 78242421Syokota break; 78342421Syokota } 78442421Syokota } 78542421Syokota 78642421Syokota /* keycode to key action */ 78742421Syokota action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 78842421Syokota &state->ks_state, &state->ks_accents); 78954382Syokota kbd->kb_prev_key = keycode | (scancode & 0x80); 79042421Syokota if (action == NOKEY) 79142421Syokota goto next_code; 79242421Syokota else 79342421Syokota return action; 79442421Syokota} 79542421Syokota 79642421Syokota/* check if char is waiting */ 79742421Syokotastatic int 79842421Syokotaatkbd_check_char(keyboard_t *kbd) 79942421Syokota{ 80042421Syokota atkbd_state_t *state; 80142421Syokota 80242421Syokota if (!KBD_IS_ACTIVE(kbd)) 80342421Syokota return FALSE; 80442421Syokota state = (atkbd_state_t *)kbd->kb_data; 80542421Syokota if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 80642421Syokota return TRUE; 80742421Syokota return kbdc_data_ready(state->kbdc); 80842421Syokota} 80942421Syokota 81042421Syokota/* some useful control functions */ 81142421Syokotastatic int 81242421Syokotaatkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 81342421Syokota{ 81442421Syokota /* trasnlate LED_XXX bits into the device specific bits */ 81542421Syokota static u_char ledmap[8] = { 81642421Syokota 0, 4, 2, 6, 1, 5, 3, 7, 81742421Syokota }; 81842421Syokota atkbd_state_t *state = kbd->kb_data; 81942421Syokota int error; 82042421Syokota int s; 82142421Syokota int i; 82242421Syokota 82342421Syokota s = spltty(); 82442421Syokota switch (cmd) { 82542421Syokota 82642421Syokota case KDGKBMODE: /* get keyboard mode */ 82742421Syokota *(int *)arg = state->ks_mode; 82842421Syokota break; 82942421Syokota case KDSKBMODE: /* set keyboard mode */ 83042421Syokota switch (*(int *)arg) { 83142421Syokota case K_XLATE: 83242421Syokota if (state->ks_mode != K_XLATE) { 83342421Syokota /* make lock key state and LED state match */ 83442421Syokota state->ks_state &= ~LOCK_MASK; 83542421Syokota state->ks_state |= KBD_LED_VAL(kbd); 83642421Syokota } 83742421Syokota /* FALL THROUGH */ 83842421Syokota case K_RAW: 83942421Syokota case K_CODE: 84042421Syokota if (state->ks_mode != *(int *)arg) { 84142421Syokota atkbd_clear_state(kbd); 84242421Syokota state->ks_mode = *(int *)arg; 84342421Syokota } 84442421Syokota break; 84542421Syokota default: 84642421Syokota splx(s); 84742421Syokota return EINVAL; 84842421Syokota } 84942421Syokota break; 85042421Syokota 85142421Syokota case KDGETLED: /* get keyboard LED */ 85242421Syokota *(int *)arg = KBD_LED_VAL(kbd); 85342421Syokota break; 85442421Syokota case KDSETLED: /* set keyboard LED */ 85542421Syokota /* NOTE: lock key state in ks_state won't be changed */ 85642421Syokota if (*(int *)arg & ~LOCK_MASK) { 85742421Syokota splx(s); 85842421Syokota return EINVAL; 85942421Syokota } 86042421Syokota i = *(int *)arg; 86142421Syokota /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 86242421Syokota if (kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 86342421Syokota if (i & ALKED) 86442421Syokota i |= CLKED; 86542421Syokota else 86642421Syokota i &= ~CLKED; 86742421Syokota } 86842421Syokota if (KBD_HAS_DEVICE(kbd)) { 86942421Syokota error = write_kbd(state->kbdc, KBDC_SET_LEDS, 87042421Syokota ledmap[i & LED_MASK]); 87142421Syokota if (error) { 87242421Syokota splx(s); 87342421Syokota return error; 87442421Syokota } 87542421Syokota } 87642421Syokota KBD_LED_VAL(kbd) = *(int *)arg; 87742421Syokota break; 87842421Syokota 87942421Syokota case KDGKBSTATE: /* get lock key state */ 88042421Syokota *(int *)arg = state->ks_state & LOCK_MASK; 88142421Syokota break; 88242421Syokota case KDSKBSTATE: /* set lock key state */ 88342421Syokota if (*(int *)arg & ~LOCK_MASK) { 88442421Syokota splx(s); 88542421Syokota return EINVAL; 88642421Syokota } 88742421Syokota state->ks_state &= ~LOCK_MASK; 88842421Syokota state->ks_state |= *(int *)arg; 88942421Syokota splx(s); 89042421Syokota /* set LEDs and quit */ 89142421Syokota return atkbd_ioctl(kbd, KDSETLED, arg); 89242421Syokota 89344628Syokota case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 89442421Syokota splx(s); 89542421Syokota if (!KBD_HAS_DEVICE(kbd)) 89642421Syokota return 0; 89744628Syokota i = typematic(((int *)arg)[0], ((int *)arg)[1]); 89854543Syokota error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 89954543Syokota if (error == 0) { 90054543Syokota kbd->kb_delay1 = typematic_delay(i); 90154543Syokota kbd->kb_delay2 = typematic_rate(i); 90254543Syokota } 90354543Syokota return error; 90442421Syokota 90544628Syokota case KDSETRAD: /* set keyboard repeat rate (old interface) */ 90644628Syokota splx(s); 90744628Syokota if (!KBD_HAS_DEVICE(kbd)) 90844628Syokota return 0; 90954543Syokota error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 91054543Syokota if (error == 0) { 91154543Syokota kbd->kb_delay1 = typematic_delay(*(int *)arg); 91254543Syokota kbd->kb_delay2 = typematic_rate(*(int *)arg); 91354543Syokota } 91454543Syokota return error; 91544628Syokota 91642421Syokota case PIO_KEYMAP: /* set keyboard translation table */ 91742421Syokota case PIO_KEYMAPENT: /* set keyboard translation table entry */ 91842421Syokota case PIO_DEADKEYMAP: /* set accent key translation table */ 91942421Syokota state->ks_accents = 0; 92042421Syokota /* FALL THROUGH */ 92142421Syokota default: 92242421Syokota splx(s); 92342421Syokota return genkbd_commonioctl(kbd, cmd, arg); 92442421Syokota } 92542421Syokota 92642421Syokota splx(s); 92742421Syokota return 0; 92842421Syokota} 92942421Syokota 93042421Syokota/* lock the access to the keyboard */ 93142421Syokotastatic int 93242421Syokotaatkbd_lock(keyboard_t *kbd, int lock) 93342421Syokota{ 93442421Syokota return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 93542421Syokota} 93642421Syokota 93742421Syokota/* clear the internal state of the keyboard */ 93842421Syokotastatic void 93942421Syokotaatkbd_clear_state(keyboard_t *kbd) 94042421Syokota{ 94142421Syokota atkbd_state_t *state; 94242421Syokota 94342421Syokota state = (atkbd_state_t *)kbd->kb_data; 94442421Syokota state->ks_flags = 0; 94544628Syokota state->ks_polling = 0; 94642421Syokota state->ks_state &= LOCK_MASK; /* preserve locking key state */ 94742421Syokota state->ks_accents = 0; 94842421Syokota state->ks_composed_char = 0; 94942421Syokota#if 0 95042421Syokota state->ks_prefix = 0; /* XXX */ 95142421Syokota#endif 95242421Syokota} 95342421Syokota 95442421Syokota/* save the internal state */ 95542421Syokotastatic int 95642421Syokotaatkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 95742421Syokota{ 95842421Syokota if (len == 0) 95942421Syokota return sizeof(atkbd_state_t); 96042421Syokota if (len < sizeof(atkbd_state_t)) 96142421Syokota return -1; 96242421Syokota bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 96342421Syokota return 0; 96442421Syokota} 96542421Syokota 96642421Syokota/* set the internal state */ 96742421Syokotastatic int 96842421Syokotaatkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 96942421Syokota{ 97042421Syokota if (len < sizeof(atkbd_state_t)) 97142421Syokota return ENOMEM; 97242421Syokota if (((atkbd_state_t *)kbd->kb_data)->kbdc 97342421Syokota != ((atkbd_state_t *)buf)->kbdc) 97442421Syokota return ENOMEM; 97542421Syokota bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 97642421Syokota return 0; 97742421Syokota} 97842421Syokota 97944628Syokotastatic int 98044628Syokotaatkbd_poll(keyboard_t *kbd, int on) 98144628Syokota{ 98244628Syokota atkbd_state_t *state; 98344628Syokota int s; 98444628Syokota 98544628Syokota state = (atkbd_state_t *)kbd->kb_data; 98644628Syokota s = spltty(); 98744628Syokota if (on) 98844628Syokota ++state->ks_polling; 98944628Syokota else 99044628Syokota --state->ks_polling; 99144628Syokota splx(s); 99244628Syokota return 0; 99344628Syokota} 99444628Syokota 99542421Syokota/* local functions */ 99642421Syokota 99742421Syokotastatic int 99855731Syokotaget_typematic(keyboard_t *kbd) 99955731Syokota{ 100055731Syokota#ifdef __i386__ 100155731Syokota /* 100255731Syokota * Only some systems allow us to retrieve the keyboard repeat 100355731Syokota * rate previously set via the BIOS... 100455731Syokota */ 100555731Syokota struct vm86frame vmf; 100655731Syokota u_int32_t p; 100755731Syokota 100855731Syokota bzero(&vmf, sizeof(vmf)); 100955731Syokota vmf.vmf_ax = 0xc000; 101055731Syokota vm86_intcall(0x15, &vmf); 101155731Syokota if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah) 101255731Syokota return ENODEV; 101355731Syokota p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx); 101455731Syokota if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */ 101555731Syokota return ENODEV; 101655731Syokota vmf.vmf_ax = 0x0900; 101755731Syokota vm86_intcall(0x16, &vmf); 101855731Syokota if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */ 101955731Syokota return ENODEV; 102055731Syokota vmf.vmf_ax = 0x0306; 102155731Syokota vm86_intcall(0x16, &vmf); 102255731Syokota kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5); 102355731Syokota kbd->kb_delay2 = typematic_rate(vmf.vmf_bl); 102455731Syokota return 0; 102555731Syokota#else 102655731Syokota return ENODEV; 102755731Syokota#endif /* __i386__ */ 102855731Syokota} 102955731Syokota 103055731Syokotastatic int 103142421Syokotasetup_kbd_port(KBDC kbdc, int port, int intr) 103242421Syokota{ 103342421Syokota if (!set_controller_command_byte(kbdc, 103442421Syokota KBD_KBD_CONTROL_BITS, 103542421Syokota ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 103642421Syokota | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 103742421Syokota return 1; 103842421Syokota return 0; 103942421Syokota} 104042421Syokota 104142421Syokotastatic int 104242421Syokotaget_kbd_echo(KBDC kbdc) 104342421Syokota{ 104442421Syokota /* enable the keyboard port, but disable the keyboard intr. */ 104542421Syokota if (setup_kbd_port(kbdc, TRUE, FALSE)) 104642421Syokota /* CONTROLLER ERROR: there is very little we can do... */ 104742421Syokota return ENXIO; 104842421Syokota 104942421Syokota /* see if something is present */ 105042421Syokota write_kbd_command(kbdc, KBDC_ECHO); 105142421Syokota if (read_kbd_data(kbdc) != KBD_ECHO) { 105242421Syokota empty_both_buffers(kbdc, 10); 105342421Syokota test_controller(kbdc); 105442421Syokota test_kbd_port(kbdc); 105542421Syokota return ENXIO; 105642421Syokota } 105742421Syokota 105842421Syokota /* enable the keyboard port and intr. */ 105942421Syokota if (setup_kbd_port(kbdc, TRUE, TRUE)) { 106042421Syokota /* 106142421Syokota * CONTROLLER ERROR 106242421Syokota * This is serious; the keyboard intr is left disabled! 106342421Syokota */ 106442421Syokota return ENXIO; 106542421Syokota } 106642421Syokota 106742421Syokota return 0; 106842421Syokota} 106942421Syokota 107042421Syokotastatic int 107142421Syokotaprobe_keyboard(KBDC kbdc, int flags) 107242421Syokota{ 107342421Syokota /* 107442421Syokota * Don't try to print anything in this function. The low-level 107542421Syokota * console may not have been initialized yet... 107642421Syokota */ 107742421Syokota int err; 107842421Syokota int c; 107942421Syokota int m; 108042421Syokota 108142421Syokota if (!kbdc_lock(kbdc, TRUE)) { 108242421Syokota /* driver error? */ 108342421Syokota return ENXIO; 108442421Syokota } 108542421Syokota 108642421Syokota /* flush any noise in the buffer */ 108742421Syokota empty_both_buffers(kbdc, 10); 108842421Syokota 108942421Syokota /* save the current keyboard controller command byte */ 109042421Syokota m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 109142421Syokota c = get_controller_command_byte(kbdc); 109242421Syokota if (c == -1) { 109342421Syokota /* CONTROLLER ERROR */ 109442421Syokota kbdc_set_device_mask(kbdc, m); 109542421Syokota kbdc_lock(kbdc, FALSE); 109642421Syokota return ENXIO; 109742421Syokota } 109842421Syokota 109942421Syokota /* 110042421Syokota * The keyboard may have been screwed up by the boot block. 110142421Syokota * We may just be able to recover from error by testing the controller 110242421Syokota * and the keyboard port. The controller command byte needs to be 110342421Syokota * saved before this recovery operation, as some controllers seem 110442421Syokota * to set the command byte to particular values. 110542421Syokota */ 110642421Syokota test_controller(kbdc); 110742421Syokota test_kbd_port(kbdc); 110842421Syokota 110942421Syokota err = get_kbd_echo(kbdc); 111042421Syokota if (err == 0) { 111142421Syokota kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 111242421Syokota } else { 111342421Syokota if (c != -1) 111442421Syokota /* try to restore the command byte as before */ 111542421Syokota set_controller_command_byte(kbdc, 0xff, c); 111642421Syokota kbdc_set_device_mask(kbdc, m); 111742421Syokota } 111842421Syokota 111942421Syokota kbdc_lock(kbdc, FALSE); 112042421Syokota return err; 112142421Syokota} 112242421Syokota 112342421Syokotastatic int 112442421Syokotainit_keyboard(KBDC kbdc, int *type, int flags) 112542421Syokota{ 112642421Syokota int codeset; 112742421Syokota int id; 112842421Syokota int c; 112942421Syokota 113042421Syokota if (!kbdc_lock(kbdc, TRUE)) { 113142421Syokota /* driver error? */ 113242421Syokota return EIO; 113342421Syokota } 113442421Syokota 113542421Syokota /* save the current controller command byte */ 113654382Syokota empty_both_buffers(kbdc, 200); 113742421Syokota c = get_controller_command_byte(kbdc); 113842421Syokota if (c == -1) { 113942421Syokota /* CONTROLLER ERROR */ 114042421Syokota kbdc_lock(kbdc, FALSE); 114142421Syokota printf("atkbd: unable to get the current command byte value.\n"); 114242421Syokota return EIO; 114342421Syokota } 114442421Syokota if (bootverbose) 114542421Syokota printf("atkbd: the current kbd controller command byte %04x\n", 114642421Syokota c); 114742421Syokota#if 0 114842421Syokota /* override the keyboard lock switch */ 114942421Syokota c |= KBD_OVERRIDE_KBD_LOCK; 115042421Syokota#endif 115142421Syokota 115242421Syokota /* enable the keyboard port, but disable the keyboard intr. */ 115342421Syokota if (setup_kbd_port(kbdc, TRUE, FALSE)) { 115442421Syokota /* CONTROLLER ERROR: there is very little we can do... */ 115542421Syokota printf("atkbd: unable to set the command byte.\n"); 115642421Syokota kbdc_lock(kbdc, FALSE); 115742421Syokota return EIO; 115842421Syokota } 115942421Syokota 116042421Syokota /* 116142421Syokota * Check if we have an XT keyboard before we attempt to reset it. 116242421Syokota * The procedure assumes that the keyboard and the controller have 116342421Syokota * been set up properly by BIOS and have not been messed up 116442421Syokota * during the boot process. 116542421Syokota */ 116642421Syokota codeset = -1; 116742421Syokota if (flags & KB_CONF_ALT_SCANCODESET) 116842421Syokota /* the user says there is a XT keyboard */ 116942421Syokota codeset = 1; 117042421Syokota#ifdef KBD_DETECT_XT_KEYBOARD 117142421Syokota else if ((c & KBD_TRANSLATION) == 0) { 117242421Syokota /* SET_SCANCODE_SET is not always supported; ignore error */ 117342421Syokota if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 117442421Syokota == KBD_ACK) 117542421Syokota codeset = read_kbd_data(kbdc); 117642421Syokota } 117742421Syokota if (bootverbose) 117842421Syokota printf("atkbd: scancode set %d\n", codeset); 117942421Syokota#endif /* KBD_DETECT_XT_KEYBOARD */ 118042421Syokota 118142421Syokota *type = KB_OTHER; 118242421Syokota id = get_kbd_id(kbdc); 118342421Syokota switch(id) { 118455730Syokota case 0x41ab: /* 101/102/... Enhanced */ 118555730Syokota case 0x83ab: /* ditto */ 118655730Syokota case 0x54ab: /* SpaceSaver */ 118755730Syokota case 0x84ab: /* ditto */ 118855730Syokota#if 0 118955730Syokota case 0x90ab: /* 'G' */ 119055730Syokota case 0x91ab: /* 'P' */ 119155730Syokota case 0x92ab: /* 'A' */ 119255730Syokota#endif 119342421Syokota *type = KB_101; 119442421Syokota break; 119542421Syokota case -1: /* AT 84 keyboard doesn't return ID */ 119642421Syokota *type = KB_84; 119742421Syokota break; 119842421Syokota default: 119942421Syokota break; 120042421Syokota } 120142421Syokota if (bootverbose) 120242421Syokota printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 120342421Syokota 120442421Syokota /* reset keyboard hardware */ 120542421Syokota if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 120642421Syokota /* 120742421Syokota * KEYBOARD ERROR 120842421Syokota * Keyboard reset may fail either because the keyboard 120942421Syokota * doen't exist, or because the keyboard doesn't pass 121042421Syokota * the self-test, or the keyboard controller on the 121142421Syokota * motherboard and the keyboard somehow fail to shake hands. 121242421Syokota * It is just possible, particularly in the last case, 121342421Syokota * that the keyoard controller may be left in a hung state. 121442421Syokota * test_controller() and test_kbd_port() appear to bring 121542421Syokota * the keyboard controller back (I don't know why and how, 121642421Syokota * though.) 121742421Syokota */ 121842421Syokota empty_both_buffers(kbdc, 10); 121942421Syokota test_controller(kbdc); 122042421Syokota test_kbd_port(kbdc); 122142421Syokota /* 122242421Syokota * We could disable the keyboard port and interrupt... but, 122342421Syokota * the keyboard may still exist (see above). 122442421Syokota */ 122542421Syokota set_controller_command_byte(kbdc, 0xff, c); 122642421Syokota kbdc_lock(kbdc, FALSE); 122742421Syokota if (bootverbose) 122842421Syokota printf("atkbd: failed to reset the keyboard.\n"); 122942421Syokota return EIO; 123042421Syokota } 123142421Syokota 123242421Syokota /* 123342421Syokota * Allow us to set the XT_KEYBD flag in UserConfig so that keyboards 123442421Syokota * such as those on the IBM ThinkPad laptop computers can be used 123542421Syokota * with the standard console driver. 123642421Syokota */ 123742421Syokota if (codeset == 1) { 123842421Syokota if (send_kbd_command_and_data(kbdc, 123942421Syokota KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 124042421Syokota /* XT kbd doesn't need scan code translation */ 124142421Syokota c &= ~KBD_TRANSLATION; 124242421Syokota } else { 124342421Syokota /* 124442421Syokota * KEYBOARD ERROR 124542421Syokota * The XT kbd isn't usable unless the proper scan 124642421Syokota * code set is selected. 124742421Syokota */ 124842421Syokota set_controller_command_byte(kbdc, 0xff, c); 124942421Syokota kbdc_lock(kbdc, FALSE); 125042421Syokota printf("atkbd: unable to set the XT keyboard mode.\n"); 125142421Syokota return EIO; 125242421Syokota } 125342421Syokota } 125442421Syokota 125542831Syokota#ifdef __alpha__ 125642831Syokota if (send_kbd_command_and_data( 125742831Syokota kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 125842831Syokota printf("atkbd: can't set translation.\n"); 125942831Syokota 126042831Syokota } 126142831Syokota c |= KBD_TRANSLATION; 126242831Syokota#endif 126342831Syokota 126442421Syokota /* enable the keyboard port and intr. */ 126542421Syokota if (!set_controller_command_byte(kbdc, 126642421Syokota KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 126742421Syokota (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 126842421Syokota | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 126942421Syokota /* 127042421Syokota * CONTROLLER ERROR 127142421Syokota * This is serious; we are left with the disabled 127242421Syokota * keyboard intr. 127342421Syokota */ 127442421Syokota set_controller_command_byte(kbdc, 0xff, c); 127542421Syokota kbdc_lock(kbdc, FALSE); 127642421Syokota printf("atkbd: unable to enable the keyboard port and intr.\n"); 127742421Syokota return EIO; 127842421Syokota } 127942421Syokota 128042421Syokota kbdc_lock(kbdc, FALSE); 128142421Syokota return 0; 128242421Syokota} 128342421Syokota 128442421Syokotastatic int 128542421Syokotawrite_kbd(KBDC kbdc, int command, int data) 128642421Syokota{ 128742421Syokota int s; 128842421Syokota 128942421Syokota /* prevent the timeout routine from polling the keyboard */ 129042421Syokota if (!kbdc_lock(kbdc, TRUE)) 129142421Syokota return EBUSY; 129242421Syokota 129342421Syokota /* disable the keyboard and mouse interrupt */ 129442421Syokota s = spltty(); 129542421Syokota#if 0 129642421Syokota c = get_controller_command_byte(kbdc); 129742421Syokota if ((c == -1) 129842421Syokota || !set_controller_command_byte(kbdc, 129942421Syokota kbdc_get_device_mask(kbdc), 130042421Syokota KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 130142421Syokota | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 130242421Syokota /* CONTROLLER ERROR */ 130342421Syokota kbdc_lock(kbdc, FALSE); 130442421Syokota splx(s); 130542421Syokota return EIO; 130642421Syokota } 130742421Syokota /* 130842421Syokota * Now that the keyboard controller is told not to generate 130942421Syokota * the keyboard and mouse interrupts, call `splx()' to allow 131042421Syokota * the other tty interrupts. The clock interrupt may also occur, 131142421Syokota * but the timeout routine (`scrn_timer()') will be blocked 131242421Syokota * by the lock flag set via `kbdc_lock()' 131342421Syokota */ 131442421Syokota splx(s); 131542421Syokota#endif 131642421Syokota 131742421Syokota if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 131842421Syokota send_kbd_command(kbdc, KBDC_ENABLE_KBD); 131942421Syokota 132042421Syokota#if 0 132142421Syokota /* restore the interrupts */ 132242421Syokota if (!set_controller_command_byte(kbdc, 132342421Syokota kbdc_get_device_mask(kbdc), 132442421Syokota c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 132542421Syokota /* CONTROLLER ERROR */ 132642421Syokota } 132742421Syokota#else 132842421Syokota splx(s); 132942421Syokota#endif 133042421Syokota kbdc_lock(kbdc, FALSE); 133142421Syokota 133242421Syokota return 0; 133342421Syokota} 133442421Syokota 133542421Syokotastatic int 133642421Syokotaget_kbd_id(KBDC kbdc) 133742421Syokota{ 133842421Syokota int id1, id2; 133942421Syokota 134042421Syokota empty_both_buffers(kbdc, 10); 134142421Syokota id1 = id2 = -1; 134242421Syokota if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 134342421Syokota return -1; 134442421Syokota 134542421Syokota DELAY(10000); /* 10 msec delay */ 134642421Syokota id1 = read_kbd_data(kbdc); 134742421Syokota if (id1 != -1) 134842421Syokota id2 = read_kbd_data(kbdc); 134942421Syokota 135042421Syokota if ((id1 == -1) || (id2 == -1)) { 135142421Syokota empty_both_buffers(kbdc, 10); 135242421Syokota test_controller(kbdc); 135342421Syokota test_kbd_port(kbdc); 135442421Syokota return -1; 135542421Syokota } 135642421Syokota return ((id2 << 8) | id1); 135742421Syokota} 135842421Syokota 135954543Syokotastatic int delays[] = { 250, 500, 750, 1000 }; 136054543Syokotastatic int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 136154543Syokota 68, 76, 84, 92, 100, 110, 118, 126, 136254543Syokota 136, 152, 168, 184, 200, 220, 236, 252, 136354543Syokota 272, 304, 336, 368, 400, 440, 472, 504 }; 136454543Syokota 136544628Syokotastatic int 136654543Syokotatypematic_delay(int i) 136754543Syokota{ 136854543Syokota return delays[(i >> 5) & 3]; 136954543Syokota} 137054543Syokota 137154543Syokotastatic int 137254543Syokotatypematic_rate(int i) 137354543Syokota{ 137454543Syokota return rates[i & 0x1f]; 137554543Syokota} 137654543Syokota 137754543Syokotastatic int 137844628Syokotatypematic(int delay, int rate) 137944628Syokota{ 138044628Syokota int value; 138144628Syokota int i; 138244628Syokota 138344628Syokota for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 138444628Syokota if (delay >= delays[i]) 138544628Syokota break; 138644628Syokota } 138744628Syokota value = i << 5; 138844628Syokota for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 138944628Syokota if (rate >= rates[i]) 139044628Syokota break; 139144628Syokota } 139244628Syokota value |= i; 139344628Syokota return value; 139444628Syokota} 139544628Syokota 139642421Syokota#endif /* NATKBD > 0 */ 1397