atkbd.c revision 58271
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 58271 2000-03-19 03:25:13Z yokota $ 2742421Syokota */ 2842421Syokota 2942421Syokota#include "opt_kbd.h" 3044628Syokota#include "opt_atkbd.h" 3142421Syokota 3242421Syokota#include <sys/param.h> 3342421Syokota#include <sys/systm.h> 3442421Syokota#include <sys/kernel.h> 3547336Syokota#include <sys/bus.h> 3642421Syokota#include <sys/proc.h> 3742421Syokota#include <sys/malloc.h> 3842421Syokota 3958271Syokota#include <machine/bus.h> 4058271Syokota#include <machine/resource.h> 4158271Syokota 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 6158271Syokotaatkbd_probe_unit(int unit, int ctlr, 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 7158271Syokota args[0] = ctlr; 7242421Syokota args[1] = irq; 7344628Syokota error = (*sw->probe)(unit, args, flags); 7444628Syokota if (error) 7544628Syokota return error; 7644628Syokota return 0; 7742421Syokota} 7842421Syokota 7942421Syokotaint 8058271Syokotaatkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, 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 */ 9158271Syokota args[0] = ctlr; 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 12656334Syokota /* 12756334Syokota * The original text of the following comments are extracted 12856334Syokota * from syscons.c (1.287) 12956334Syokota * 13042421Syokota * With release 2.1 of the Xaccel server, the keyboard is left 13142421Syokota * hanging pretty often. Apparently an interrupt from the 13242421Syokota * keyboard is lost, and I don't know why (yet). 13356334Syokota * This ugly hack calls the low-level interrupt routine if input 13456334Syokota * is ready for the keyboard and conveniently hides the problem. XXX 13556334Syokota * 13656334Syokota * Try removing anything stuck in the keyboard controller; whether 13756334Syokota * it's a keyboard scan code or mouse data. The low-level 13856334Syokota * interrupt routine doesn't read the mouse data directly, 13956334Syokota * but the keyboard controller driver will, as a side effect. 14042421Syokota */ 14142421Syokota /* 14256334Syokota * And here is bde's original comment about this: 14356334Syokota * 14456334Syokota * This is necessary to handle edge triggered interrupts - if we 14556334Syokota * returned when our IRQ is high due to unserviced input, then there 14656334Syokota * would be no more keyboard IRQs until the keyboard is reset by 14756334Syokota * external powers. 14856334Syokota * 14956334Syokota * The keyboard apparently unwedges the irq in most cases. 15042421Syokota */ 15142421Syokota s = spltty(); 15242421Syokota kbd = (keyboard_t *)arg; 15342421Syokota if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) { 15442421Syokota /* 15542421Syokota * We have seen the lock flag is not set. Let's reset 15642421Syokota * the flag early, otherwise the LED update routine fails 15742421Syokota * which may want the lock during the interrupt routine. 15842421Syokota */ 15942421Syokota (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE); 16042421Syokota if ((*kbdsw[kbd->kb_index]->check_char)(kbd)) 16144628Syokota (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 16242421Syokota } 16342421Syokota splx(s); 16442421Syokota timeout(atkbd_timeout, arg, hz/10); 16542421Syokota} 16642421Syokota 16742421Syokota/* LOW-LEVEL */ 16842421Syokota 16942421Syokota#include <machine/limits.h> 17042421Syokota#include <machine/console.h> 17142421Syokota#include <machine/clock.h> 17242421Syokota 17342421Syokota#define ATKBD_DEFAULT 0 17442421Syokota 17542421Syokotatypedef struct atkbd_state { 17642421Syokota KBDC kbdc; /* keyboard controller */ 17742421Syokota /* XXX: don't move this field; pcvt 17842421Syokota * expects `kbdc' to be the first 17942421Syokota * field in this structure. */ 18042421Syokota int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 18142421Syokota int ks_flags; /* flags */ 18242421Syokota#define COMPOSE (1 << 0) 18344628Syokota int ks_polling; 18442421Syokota int ks_state; /* shift/lock key state */ 18542421Syokota int ks_accents; /* accent key index (> 0) */ 18642421Syokota u_int ks_composed_char; /* composed char code (> 0) */ 18742421Syokota u_char ks_prefix; /* AT scan code prefix */ 18842421Syokota} atkbd_state_t; 18942421Syokota 19042421Syokota/* keyboard driver declaration */ 19142421Syokotastatic int atkbd_configure(int flags); 19242421Syokotastatic kbd_probe_t atkbd_probe; 19342421Syokotastatic kbd_init_t atkbd_init; 19442421Syokotastatic kbd_term_t atkbd_term; 19542421Syokotastatic kbd_intr_t atkbd_intr; 19642421Syokotastatic kbd_test_if_t atkbd_test_if; 19742421Syokotastatic kbd_enable_t atkbd_enable; 19842421Syokotastatic kbd_disable_t atkbd_disable; 19942421Syokotastatic kbd_read_t atkbd_read; 20042421Syokotastatic kbd_check_t atkbd_check; 20142421Syokotastatic kbd_read_char_t atkbd_read_char; 20242421Syokotastatic kbd_check_char_t atkbd_check_char; 20342421Syokotastatic kbd_ioctl_t atkbd_ioctl; 20442421Syokotastatic kbd_lock_t atkbd_lock; 20542421Syokotastatic kbd_clear_state_t atkbd_clear_state; 20642421Syokotastatic kbd_get_state_t atkbd_get_state; 20742421Syokotastatic kbd_set_state_t atkbd_set_state; 20844628Syokotastatic kbd_poll_mode_t atkbd_poll; 20942421Syokota 21042421Syokotakeyboard_switch_t atkbdsw = { 21142421Syokota atkbd_probe, 21242421Syokota atkbd_init, 21342421Syokota atkbd_term, 21442421Syokota atkbd_intr, 21542421Syokota atkbd_test_if, 21642421Syokota atkbd_enable, 21742421Syokota atkbd_disable, 21842421Syokota atkbd_read, 21942421Syokota atkbd_check, 22042421Syokota atkbd_read_char, 22142421Syokota atkbd_check_char, 22242421Syokota atkbd_ioctl, 22342421Syokota atkbd_lock, 22442421Syokota atkbd_clear_state, 22542421Syokota atkbd_get_state, 22642421Syokota atkbd_set_state, 22742421Syokota genkbd_get_fkeystr, 22844628Syokota atkbd_poll, 22942421Syokota genkbd_diag, 23042421Syokota}; 23142421Syokota 23242421SyokotaKEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 23342421Syokota 23442421Syokota/* local functions */ 23555731Syokotastatic int get_typematic(keyboard_t *kbd); 23642421Syokotastatic int setup_kbd_port(KBDC kbdc, int port, int intr); 23742421Syokotastatic int get_kbd_echo(KBDC kbdc); 23842421Syokotastatic int probe_keyboard(KBDC kbdc, int flags); 23942421Syokotastatic int init_keyboard(KBDC kbdc, int *type, int flags); 24042421Syokotastatic int write_kbd(KBDC kbdc, int command, int data); 24142421Syokotastatic int get_kbd_id(KBDC kbdc); 24244628Syokotastatic int typematic(int delay, int rate); 24354543Syokotastatic int typematic_delay(int delay); 24454543Syokotastatic int typematic_rate(int rate); 24542421Syokota 24642421Syokota/* local variables */ 24742421Syokota 24842421Syokota/* the initial key map, accent map and fkey strings */ 24944628Syokota#ifdef ATKBD_DFLT_KEYMAP 25044628Syokota#define KBD_DFLT_KEYMAP 25144628Syokota#include "atkbdmap.h" 25244628Syokota#endif 25342831Syokota#include <dev/kbd/kbdtables.h> 25442421Syokota 25542421Syokota/* structures for the default keyboard */ 25642421Syokotastatic keyboard_t default_kbd; 25742421Syokotastatic atkbd_state_t default_kbd_state; 25842421Syokotastatic keymap_t default_keymap; 25942421Syokotastatic accentmap_t default_accentmap; 26042421Syokotastatic fkeytab_t default_fkeytab[NUM_FKEYS]; 26142421Syokota 26242421Syokota/* 26342421Syokota * The back door to the keyboard driver! 26442421Syokota * This function is called by the console driver, via the kbdio module, 26542421Syokota * to tickle keyboard drivers when the low-level console is being initialized. 26642421Syokota * Almost nothing in the kernel has been initialied yet. Try to probe 26742421Syokota * keyboards if possible. 26842421Syokota * NOTE: because of the way the low-level conole is initialized, this routine 26942421Syokota * may be called more than once!! 27042421Syokota */ 27142421Syokotastatic int 27242421Syokotaatkbd_configure(int flags) 27342421Syokota{ 27442421Syokota keyboard_t *kbd; 27542421Syokota int arg[2]; 27644628Syokota int i; 27742421Syokota 27848878Syokota /* probe the keyboard controller */ 27948878Syokota atkbdc_configure(); 28048878Syokota 28146764Syokota /* if the driver is disabled, unregister the keyboard if any */ 28246764Syokota if ((resource_int_value("atkbd", ATKBD_DEFAULT, "disabled", &i) == 0) 28346764Syokota && i != 0) { 28446764Syokota i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 28546764Syokota if (i >= 0) { 28646764Syokota kbd = kbd_get_keyboard(i); 28746764Syokota kbd_unregister(kbd); 28846764Syokota kbd->kb_flags &= ~KB_REGISTERED; 28944628Syokota } 29048878Syokota return 0; 29144628Syokota } 29245720Speter 29346764Syokota /* XXX: a kludge to obtain the device configuration flags */ 29446764Syokota if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 29546764Syokota flags |= i; 29646764Syokota 29742421Syokota /* probe the default keyboard */ 29842421Syokota arg[0] = -1; 29942421Syokota arg[1] = -1; 30044628Syokota kbd = NULL; 30144628Syokota if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 30242421Syokota return 0; 30344628Syokota if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 30444628Syokota return 0; 30542421Syokota 30644628Syokota /* return the number of found keyboards */ 30744628Syokota return 1; 30844628Syokota} 30944628Syokota 31044628Syokota/* low-level functions */ 31144628Syokota 31244628Syokota/* detect a keyboard */ 31344628Syokotastatic int 31444628Syokotaatkbd_probe(int unit, void *arg, int flags) 31544628Syokota{ 31644628Syokota KBDC kbdc; 31758271Syokota int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 31844628Syokota 31944628Syokota /* XXX */ 32044628Syokota if (unit == ATKBD_DEFAULT) { 32144628Syokota if (KBD_IS_PROBED(&default_kbd)) 32242421Syokota return 0; 32342421Syokota } 32442421Syokota 32558271Syokota kbdc = atkbdc_open(data[0]); 32644628Syokota if (kbdc == NULL) 32744628Syokota return ENXIO; 32844628Syokota if (probe_keyboard(kbdc, flags)) { 32944628Syokota if (flags & KB_CONF_FAIL_IF_NO_KBD) 33044628Syokota return ENXIO; 33142421Syokota } 33244628Syokota return 0; 33342421Syokota} 33442421Syokota 33544628Syokota/* reset and initialize the device */ 33642421Syokotastatic int 33744628Syokotaatkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 33842421Syokota{ 33942421Syokota keyboard_t *kbd; 34042421Syokota atkbd_state_t *state; 34142421Syokota keymap_t *keymap; 34242421Syokota accentmap_t *accmap; 34342421Syokota fkeytab_t *fkeymap; 34442421Syokota int fkeymap_size; 34555731Syokota int delay[2]; 34658271Syokota int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 34742421Syokota 34842421Syokota /* XXX */ 34942421Syokota if (unit == ATKBD_DEFAULT) { 35042421Syokota *kbdp = kbd = &default_kbd; 35144628Syokota if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 35242421Syokota return 0; 35342421Syokota state = &default_kbd_state; 35442421Syokota keymap = &default_keymap; 35542421Syokota accmap = &default_accentmap; 35642421Syokota fkeymap = default_fkeytab; 35742421Syokota fkeymap_size = 35842421Syokota sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 35942421Syokota } else if (*kbdp == NULL) { 36042421Syokota *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT); 36142421Syokota if (kbd == NULL) 36242421Syokota return ENOMEM; 36342421Syokota bzero(kbd, sizeof(*kbd)); 36442421Syokota state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT); 36542421Syokota keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 36642421Syokota accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 36742421Syokota fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 36842421Syokota fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 36942421Syokota if ((state == NULL) || (keymap == NULL) || (accmap == NULL) 37042421Syokota || (fkeymap == NULL)) { 37142421Syokota if (state != NULL) 37242421Syokota free(state, M_DEVBUF); 37342421Syokota if (keymap != NULL) 37442421Syokota free(keymap, M_DEVBUF); 37542421Syokota if (accmap != NULL) 37642421Syokota free(accmap, M_DEVBUF); 37742421Syokota if (fkeymap != NULL) 37842421Syokota free(fkeymap, M_DEVBUF); 37942421Syokota free(kbd, M_DEVBUF); 38042421Syokota return ENOMEM; 38142421Syokota } 38242421Syokota bzero(state, sizeof(*state)); 38344628Syokota } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 38442421Syokota return 0; 38542421Syokota } else { 38642421Syokota kbd = *kbdp; 38742421Syokota state = (atkbd_state_t *)kbd->kb_data; 38842421Syokota bzero(state, sizeof(*state)); 38942421Syokota keymap = kbd->kb_keymap; 39042421Syokota accmap = kbd->kb_accentmap; 39142421Syokota fkeymap = kbd->kb_fkeytab; 39242421Syokota fkeymap_size = kbd->kb_fkeytab_size; 39342421Syokota } 39442421Syokota 39544628Syokota if (!KBD_IS_PROBED(kbd)) { 39658271Syokota state->kbdc = atkbdc_open(data[0]); 39744628Syokota if (state->kbdc == NULL) 39842421Syokota return ENXIO; 39944628Syokota kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 40058271Syokota 0, 0); 40144628Syokota bcopy(&key_map, keymap, sizeof(key_map)); 40244628Syokota bcopy(&accent_map, accmap, sizeof(accent_map)); 40344628Syokota bcopy(fkey_tab, fkeymap, 40444628Syokota imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 40544628Syokota kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 40644628Syokota kbd->kb_data = (void *)state; 40744628Syokota 40844628Syokota if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 40944628Syokota if (flags & KB_CONF_FAIL_IF_NO_KBD) 41044628Syokota return ENXIO; 41144628Syokota } else { 41244628Syokota KBD_FOUND_DEVICE(kbd); 41344628Syokota } 41444628Syokota atkbd_clear_state(kbd); 41544628Syokota state->ks_mode = K_XLATE; 41644628Syokota /* 41744628Syokota * FIXME: set the initial value for lock keys in ks_state 41844628Syokota * according to the BIOS data? 41944628Syokota */ 42044628Syokota KBD_PROBE_DONE(kbd); 42142421Syokota } 42244628Syokota if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 42349820Syokota kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 42442421Syokota if (KBD_HAS_DEVICE(kbd) 42544628Syokota && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 42644628Syokota && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) 42742421Syokota return ENXIO; 42844628Syokota atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 42955731Syokota get_typematic(kbd); 43055731Syokota delay[0] = kbd->kb_delay1; 43155731Syokota delay[1] = kbd->kb_delay2; 43255731Syokota atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 43342421Syokota KBD_INIT_DONE(kbd); 43442421Syokota } 43542421Syokota if (!KBD_IS_CONFIGURED(kbd)) { 43642421Syokota if (kbd_register(kbd) < 0) 43742421Syokota return ENXIO; 43842421Syokota KBD_CONFIG_DONE(kbd); 43942421Syokota } 44042421Syokota 44142421Syokota return 0; 44242421Syokota} 44342421Syokota 44442421Syokota/* finish using this keyboard */ 44542421Syokotastatic int 44642421Syokotaatkbd_term(keyboard_t *kbd) 44742421Syokota{ 44842421Syokota kbd_unregister(kbd); 44942421Syokota return 0; 45042421Syokota} 45142421Syokota 45242421Syokota/* keyboard interrupt routine */ 45342421Syokotastatic int 45444628Syokotaatkbd_intr(keyboard_t *kbd, void *arg) 45542421Syokota{ 45642421Syokota atkbd_state_t *state; 45755731Syokota int delay[2]; 45842421Syokota int c; 45942421Syokota 46042421Syokota if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 46142421Syokota /* let the callback function to process the input */ 46242421Syokota (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 46342421Syokota kbd->kb_callback.kc_arg); 46442421Syokota } else { 46542421Syokota /* read and discard the input; no one is waiting for input */ 46642421Syokota do { 46742421Syokota c = atkbd_read_char(kbd, FALSE); 46842421Syokota } while (c != NOKEY); 46942421Syokota 47042421Syokota if (!KBD_HAS_DEVICE(kbd)) { 47142421Syokota /* 47242421Syokota * The keyboard was not detected before; 47342421Syokota * it must have been reconnected! 47442421Syokota */ 47542421Syokota state = (atkbd_state_t *)kbd->kb_data; 47642421Syokota init_keyboard(state->kbdc, &kbd->kb_type, 47742421Syokota kbd->kb_config); 47842421Syokota atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 47955731Syokota get_typematic(kbd); 48055731Syokota delay[0] = kbd->kb_delay1; 48155731Syokota delay[1] = kbd->kb_delay2; 48255731Syokota atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 48342421Syokota KBD_FOUND_DEVICE(kbd); 48442421Syokota } 48542421Syokota } 48642421Syokota return 0; 48742421Syokota} 48842421Syokota 48942421Syokota/* test the interface to the device */ 49042421Syokotastatic int 49142421Syokotaatkbd_test_if(keyboard_t *kbd) 49242421Syokota{ 49342421Syokota int error; 49442421Syokota int s; 49542421Syokota 49642421Syokota error = 0; 49742421Syokota empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 49842421Syokota s = spltty(); 49942421Syokota if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 50042421Syokota error = EIO; 50142421Syokota else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 50242421Syokota error = EIO; 50342421Syokota splx(s); 50442421Syokota 50542421Syokota return error; 50642421Syokota} 50742421Syokota 50842421Syokota/* 50942421Syokota * Enable the access to the device; until this function is called, 51042421Syokota * the client cannot read from the keyboard. 51142421Syokota */ 51242421Syokotastatic int 51342421Syokotaatkbd_enable(keyboard_t *kbd) 51442421Syokota{ 51542421Syokota int s; 51642421Syokota 51742421Syokota s = spltty(); 51842421Syokota KBD_ACTIVATE(kbd); 51942421Syokota splx(s); 52042421Syokota return 0; 52142421Syokota} 52242421Syokota 52342421Syokota/* disallow the access to the device */ 52442421Syokotastatic int 52542421Syokotaatkbd_disable(keyboard_t *kbd) 52642421Syokota{ 52742421Syokota int s; 52842421Syokota 52942421Syokota s = spltty(); 53042421Syokota KBD_DEACTIVATE(kbd); 53142421Syokota splx(s); 53242421Syokota return 0; 53342421Syokota} 53442421Syokota 53542421Syokota/* read one byte from the keyboard if it's allowed */ 53642421Syokotastatic int 53742421Syokotaatkbd_read(keyboard_t *kbd, int wait) 53842421Syokota{ 53942421Syokota int c; 54042421Syokota 54142421Syokota if (wait) 54242421Syokota c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 54342421Syokota else 54442421Syokota c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 54554382Syokota if (c != -1) 54654382Syokota ++kbd->kb_count; 54742421Syokota return (KBD_IS_ACTIVE(kbd) ? c : -1); 54842421Syokota} 54942421Syokota 55042421Syokota/* check if data is waiting */ 55142421Syokotastatic int 55242421Syokotaatkbd_check(keyboard_t *kbd) 55342421Syokota{ 55442421Syokota if (!KBD_IS_ACTIVE(kbd)) 55542421Syokota return FALSE; 55642421Syokota return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 55742421Syokota} 55842421Syokota 55942421Syokota/* read char from the keyboard */ 56042421Syokotastatic u_int 56142421Syokotaatkbd_read_char(keyboard_t *kbd, int wait) 56242421Syokota{ 56342421Syokota atkbd_state_t *state; 56442421Syokota u_int action; 56542421Syokota int scancode; 56642421Syokota int keycode; 56742421Syokota 56842421Syokota state = (atkbd_state_t *)kbd->kb_data; 56942421Syokotanext_code: 57042421Syokota /* do we have a composed char to return? */ 57142421Syokota if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 57242421Syokota action = state->ks_composed_char; 57342421Syokota state->ks_composed_char = 0; 57442421Syokota if (action > UCHAR_MAX) 57542421Syokota return ERRKEY; 57642421Syokota return action; 57742421Syokota } 57842421Syokota 57942421Syokota /* see if there is something in the keyboard port */ 58042421Syokota if (wait) { 58142421Syokota do { 58242421Syokota scancode = read_kbd_data(state->kbdc); 58342421Syokota } while (scancode == -1); 58442421Syokota } else { 58542421Syokota scancode = read_kbd_data_no_wait(state->kbdc); 58642421Syokota if (scancode == -1) 58742421Syokota return NOKEY; 58842421Syokota } 58954382Syokota ++kbd->kb_count; 59042421Syokota 59154382Syokota#if KBDIO_DEBUG >= 10 59254382Syokota printf("atkbd_read_char(): scancode:0x%x\n", scancode); 59354382Syokota#endif 59454382Syokota 59542421Syokota /* return the byte as is for the K_RAW mode */ 59642421Syokota if (state->ks_mode == K_RAW) 59742421Syokota return scancode; 59842421Syokota 59942421Syokota /* translate the scan code into a keycode */ 60042421Syokota keycode = scancode & 0x7F; 60142421Syokota switch (state->ks_prefix) { 60242421Syokota case 0x00: /* normal scancode */ 60342421Syokota switch(scancode) { 60442421Syokota case 0xB8: /* left alt (compose key) released */ 60542421Syokota if (state->ks_flags & COMPOSE) { 60642421Syokota state->ks_flags &= ~COMPOSE; 60742421Syokota if (state->ks_composed_char > UCHAR_MAX) 60842421Syokota state->ks_composed_char = 0; 60942421Syokota } 61042421Syokota break; 61142421Syokota case 0x38: /* left alt (compose key) pressed */ 61242421Syokota if (!(state->ks_flags & COMPOSE)) { 61342421Syokota state->ks_flags |= COMPOSE; 61442421Syokota state->ks_composed_char = 0; 61542421Syokota } 61642421Syokota break; 61742421Syokota case 0xE0: 61842421Syokota case 0xE1: 61942421Syokota state->ks_prefix = scancode; 62042421Syokota goto next_code; 62142421Syokota } 62242421Syokota break; 62342421Syokota case 0xE0: /* 0xE0 prefix */ 62442421Syokota state->ks_prefix = 0; 62542421Syokota switch (keycode) { 62642421Syokota case 0x1C: /* right enter key */ 62742421Syokota keycode = 0x59; 62842421Syokota break; 62942421Syokota case 0x1D: /* right ctrl key */ 63042421Syokota keycode = 0x5A; 63142421Syokota break; 63242421Syokota case 0x35: /* keypad divide key */ 63342421Syokota keycode = 0x5B; 63442421Syokota break; 63542421Syokota case 0x37: /* print scrn key */ 63642421Syokota keycode = 0x5C; 63742421Syokota break; 63842421Syokota case 0x38: /* right alt key (alt gr) */ 63942421Syokota keycode = 0x5D; 64042421Syokota break; 64143337Syokota case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 64243337Syokota keycode = 0x68; 64343337Syokota break; 64442421Syokota case 0x47: /* grey home key */ 64542421Syokota keycode = 0x5E; 64642421Syokota break; 64742421Syokota case 0x48: /* grey up arrow key */ 64842421Syokota keycode = 0x5F; 64942421Syokota break; 65042421Syokota case 0x49: /* grey page up key */ 65142421Syokota keycode = 0x60; 65242421Syokota break; 65342421Syokota case 0x4B: /* grey left arrow key */ 65442421Syokota keycode = 0x61; 65542421Syokota break; 65642421Syokota case 0x4D: /* grey right arrow key */ 65742421Syokota keycode = 0x62; 65842421Syokota break; 65942421Syokota case 0x4F: /* grey end key */ 66042421Syokota keycode = 0x63; 66142421Syokota break; 66242421Syokota case 0x50: /* grey down arrow key */ 66342421Syokota keycode = 0x64; 66442421Syokota break; 66542421Syokota case 0x51: /* grey page down key */ 66642421Syokota keycode = 0x65; 66742421Syokota break; 66842421Syokota case 0x52: /* grey insert key */ 66942421Syokota keycode = 0x66; 67042421Syokota break; 67142421Syokota case 0x53: /* grey delete key */ 67242421Syokota keycode = 0x67; 67342421Syokota break; 67442421Syokota /* the following 3 are only used on the MS "Natural" keyboard */ 67542421Syokota case 0x5b: /* left Window key */ 67642421Syokota keycode = 0x69; 67742421Syokota break; 67842421Syokota case 0x5c: /* right Window key */ 67942421Syokota keycode = 0x6a; 68042421Syokota break; 68142421Syokota case 0x5d: /* menu key */ 68242421Syokota keycode = 0x6b; 68342421Syokota break; 68442421Syokota default: /* ignore everything else */ 68542421Syokota goto next_code; 68642421Syokota } 68742421Syokota break; 68842421Syokota case 0xE1: /* 0xE1 prefix */ 68943337Syokota /* 69043337Syokota * The pause/break key on the 101 keyboard produces: 69143337Syokota * E1-1D-45 E1-9D-C5 69243337Syokota * Ctrl-pause/break produces: 69343337Syokota * E0-46 E0-C6 (See above.) 69443337Syokota */ 69542421Syokota state->ks_prefix = 0; 69642421Syokota if (keycode == 0x1D) 69742421Syokota state->ks_prefix = 0x1D; 69842421Syokota goto next_code; 69942421Syokota /* NOT REACHED */ 70042421Syokota case 0x1D: /* pause / break */ 70142421Syokota state->ks_prefix = 0; 70242421Syokota if (keycode != 0x45) 70343337Syokota goto next_code; 70442421Syokota keycode = 0x68; 70542421Syokota break; 70642421Syokota } 70742421Syokota 70843337Syokota if (kbd->kb_type == KB_84) { 70943337Syokota switch (keycode) { 71043337Syokota case 0x37: /* *(numpad)/print screen */ 71143337Syokota if (state->ks_flags & SHIFTS) 71243337Syokota keycode = 0x5c; /* print screen */ 71343337Syokota break; 71443337Syokota case 0x45: /* num lock/pause */ 71543337Syokota if (state->ks_flags & CTLS) 71643337Syokota keycode = 0x68; /* pause */ 71743337Syokota break; 71843337Syokota case 0x46: /* scroll lock/break */ 71943337Syokota if (state->ks_flags & CTLS) 72043337Syokota keycode = 0x6c; /* break */ 72143337Syokota break; 72243337Syokota } 72343337Syokota } else if (kbd->kb_type == KB_101) { 72443337Syokota switch (keycode) { 72543337Syokota case 0x5c: /* print screen */ 72643337Syokota if (state->ks_flags & ALTS) 72743337Syokota keycode = 0x54; /* sysrq */ 72843337Syokota break; 72943337Syokota case 0x68: /* pause/break */ 73043337Syokota if (state->ks_flags & CTLS) 73143337Syokota keycode = 0x6c; /* break */ 73243337Syokota break; 73343337Syokota } 73443337Syokota } 73543337Syokota 73642421Syokota /* return the key code in the K_CODE mode */ 73742421Syokota if (state->ks_mode == K_CODE) 73842421Syokota return (keycode | (scancode & 0x80)); 73942421Syokota 74042421Syokota /* compose a character code */ 74142421Syokota if (state->ks_flags & COMPOSE) { 74247293Syokota switch (keycode | (scancode & 0x80)) { 74342421Syokota /* key pressed, process it */ 74442421Syokota case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 74542421Syokota state->ks_composed_char *= 10; 74646765Syokota state->ks_composed_char += keycode - 0x40; 74742421Syokota if (state->ks_composed_char > UCHAR_MAX) 74842421Syokota return ERRKEY; 74942421Syokota goto next_code; 75042421Syokota case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 75142421Syokota state->ks_composed_char *= 10; 75246765Syokota state->ks_composed_char += keycode - 0x47; 75342421Syokota if (state->ks_composed_char > UCHAR_MAX) 75442421Syokota return ERRKEY; 75542421Syokota goto next_code; 75642421Syokota case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 75742421Syokota state->ks_composed_char *= 10; 75846765Syokota state->ks_composed_char += keycode - 0x4E; 75942421Syokota if (state->ks_composed_char > UCHAR_MAX) 76042421Syokota return ERRKEY; 76142421Syokota goto next_code; 76242421Syokota case 0x52: /* keypad 0 */ 76342421Syokota state->ks_composed_char *= 10; 76442421Syokota if (state->ks_composed_char > UCHAR_MAX) 76542421Syokota return ERRKEY; 76642421Syokota goto next_code; 76742421Syokota 76842421Syokota /* key released, no interest here */ 76942421Syokota case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 77042421Syokota case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 77142421Syokota case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 77242421Syokota case 0xD2: /* keypad 0 */ 77342421Syokota goto next_code; 77442421Syokota 77542421Syokota case 0x38: /* left alt key */ 77642421Syokota break; 77742421Syokota 77842421Syokota default: 77942421Syokota if (state->ks_composed_char > 0) { 78042421Syokota state->ks_flags &= ~COMPOSE; 78142421Syokota state->ks_composed_char = 0; 78242421Syokota return ERRKEY; 78342421Syokota } 78442421Syokota break; 78542421Syokota } 78642421Syokota } 78742421Syokota 78842421Syokota /* keycode to key action */ 78942421Syokota action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 79042421Syokota &state->ks_state, &state->ks_accents); 79142421Syokota if (action == NOKEY) 79242421Syokota goto next_code; 79342421Syokota else 79442421Syokota return action; 79542421Syokota} 79642421Syokota 79742421Syokota/* check if char is waiting */ 79842421Syokotastatic int 79942421Syokotaatkbd_check_char(keyboard_t *kbd) 80042421Syokota{ 80142421Syokota atkbd_state_t *state; 80242421Syokota 80342421Syokota if (!KBD_IS_ACTIVE(kbd)) 80442421Syokota return FALSE; 80542421Syokota state = (atkbd_state_t *)kbd->kb_data; 80642421Syokota if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 80742421Syokota return TRUE; 80842421Syokota return kbdc_data_ready(state->kbdc); 80942421Syokota} 81042421Syokota 81142421Syokota/* some useful control functions */ 81242421Syokotastatic int 81342421Syokotaatkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 81442421Syokota{ 81542421Syokota /* trasnlate LED_XXX bits into the device specific bits */ 81642421Syokota static u_char ledmap[8] = { 81742421Syokota 0, 4, 2, 6, 1, 5, 3, 7, 81842421Syokota }; 81942421Syokota atkbd_state_t *state = kbd->kb_data; 82042421Syokota int error; 82142421Syokota int s; 82242421Syokota int i; 82342421Syokota 82442421Syokota s = spltty(); 82542421Syokota switch (cmd) { 82642421Syokota 82742421Syokota case KDGKBMODE: /* get keyboard mode */ 82842421Syokota *(int *)arg = state->ks_mode; 82942421Syokota break; 83042421Syokota case KDSKBMODE: /* set keyboard mode */ 83142421Syokota switch (*(int *)arg) { 83242421Syokota case K_XLATE: 83342421Syokota if (state->ks_mode != K_XLATE) { 83442421Syokota /* make lock key state and LED state match */ 83542421Syokota state->ks_state &= ~LOCK_MASK; 83642421Syokota state->ks_state |= KBD_LED_VAL(kbd); 83742421Syokota } 83842421Syokota /* FALL THROUGH */ 83942421Syokota case K_RAW: 84042421Syokota case K_CODE: 84142421Syokota if (state->ks_mode != *(int *)arg) { 84242421Syokota atkbd_clear_state(kbd); 84342421Syokota state->ks_mode = *(int *)arg; 84442421Syokota } 84542421Syokota break; 84642421Syokota default: 84742421Syokota splx(s); 84842421Syokota return EINVAL; 84942421Syokota } 85042421Syokota break; 85142421Syokota 85242421Syokota case KDGETLED: /* get keyboard LED */ 85342421Syokota *(int *)arg = KBD_LED_VAL(kbd); 85442421Syokota break; 85542421Syokota case KDSETLED: /* set keyboard LED */ 85642421Syokota /* NOTE: lock key state in ks_state won't be changed */ 85742421Syokota if (*(int *)arg & ~LOCK_MASK) { 85842421Syokota splx(s); 85942421Syokota return EINVAL; 86042421Syokota } 86142421Syokota i = *(int *)arg; 86242421Syokota /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 86342421Syokota if (kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 86442421Syokota if (i & ALKED) 86542421Syokota i |= CLKED; 86642421Syokota else 86742421Syokota i &= ~CLKED; 86842421Syokota } 86942421Syokota if (KBD_HAS_DEVICE(kbd)) { 87042421Syokota error = write_kbd(state->kbdc, KBDC_SET_LEDS, 87142421Syokota ledmap[i & LED_MASK]); 87242421Syokota if (error) { 87342421Syokota splx(s); 87442421Syokota return error; 87542421Syokota } 87642421Syokota } 87742421Syokota KBD_LED_VAL(kbd) = *(int *)arg; 87842421Syokota break; 87942421Syokota 88042421Syokota case KDGKBSTATE: /* get lock key state */ 88142421Syokota *(int *)arg = state->ks_state & LOCK_MASK; 88242421Syokota break; 88342421Syokota case KDSKBSTATE: /* set lock key state */ 88442421Syokota if (*(int *)arg & ~LOCK_MASK) { 88542421Syokota splx(s); 88642421Syokota return EINVAL; 88742421Syokota } 88842421Syokota state->ks_state &= ~LOCK_MASK; 88942421Syokota state->ks_state |= *(int *)arg; 89042421Syokota splx(s); 89142421Syokota /* set LEDs and quit */ 89242421Syokota return atkbd_ioctl(kbd, KDSETLED, arg); 89342421Syokota 89444628Syokota case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 89542421Syokota splx(s); 89642421Syokota if (!KBD_HAS_DEVICE(kbd)) 89742421Syokota return 0; 89844628Syokota i = typematic(((int *)arg)[0], ((int *)arg)[1]); 89954543Syokota error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 90054543Syokota if (error == 0) { 90154543Syokota kbd->kb_delay1 = typematic_delay(i); 90254543Syokota kbd->kb_delay2 = typematic_rate(i); 90354543Syokota } 90454543Syokota return error; 90542421Syokota 90644628Syokota case KDSETRAD: /* set keyboard repeat rate (old interface) */ 90744628Syokota splx(s); 90844628Syokota if (!KBD_HAS_DEVICE(kbd)) 90944628Syokota return 0; 91054543Syokota error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 91154543Syokota if (error == 0) { 91254543Syokota kbd->kb_delay1 = typematic_delay(*(int *)arg); 91354543Syokota kbd->kb_delay2 = typematic_rate(*(int *)arg); 91454543Syokota } 91554543Syokota return error; 91644628Syokota 91742421Syokota case PIO_KEYMAP: /* set keyboard translation table */ 91842421Syokota case PIO_KEYMAPENT: /* set keyboard translation table entry */ 91942421Syokota case PIO_DEADKEYMAP: /* set accent key translation table */ 92042421Syokota state->ks_accents = 0; 92142421Syokota /* FALL THROUGH */ 92242421Syokota default: 92342421Syokota splx(s); 92442421Syokota return genkbd_commonioctl(kbd, cmd, arg); 92542421Syokota } 92642421Syokota 92742421Syokota splx(s); 92842421Syokota return 0; 92942421Syokota} 93042421Syokota 93142421Syokota/* lock the access to the keyboard */ 93242421Syokotastatic int 93342421Syokotaatkbd_lock(keyboard_t *kbd, int lock) 93442421Syokota{ 93542421Syokota return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 93642421Syokota} 93742421Syokota 93842421Syokota/* clear the internal state of the keyboard */ 93942421Syokotastatic void 94042421Syokotaatkbd_clear_state(keyboard_t *kbd) 94142421Syokota{ 94242421Syokota atkbd_state_t *state; 94342421Syokota 94442421Syokota state = (atkbd_state_t *)kbd->kb_data; 94542421Syokota state->ks_flags = 0; 94644628Syokota state->ks_polling = 0; 94742421Syokota state->ks_state &= LOCK_MASK; /* preserve locking key state */ 94842421Syokota state->ks_accents = 0; 94942421Syokota state->ks_composed_char = 0; 95042421Syokota#if 0 95142421Syokota state->ks_prefix = 0; /* XXX */ 95242421Syokota#endif 95342421Syokota} 95442421Syokota 95542421Syokota/* save the internal state */ 95642421Syokotastatic int 95742421Syokotaatkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 95842421Syokota{ 95942421Syokota if (len == 0) 96042421Syokota return sizeof(atkbd_state_t); 96142421Syokota if (len < sizeof(atkbd_state_t)) 96242421Syokota return -1; 96342421Syokota bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 96442421Syokota return 0; 96542421Syokota} 96642421Syokota 96742421Syokota/* set the internal state */ 96842421Syokotastatic int 96942421Syokotaatkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 97042421Syokota{ 97142421Syokota if (len < sizeof(atkbd_state_t)) 97242421Syokota return ENOMEM; 97342421Syokota if (((atkbd_state_t *)kbd->kb_data)->kbdc 97442421Syokota != ((atkbd_state_t *)buf)->kbdc) 97542421Syokota return ENOMEM; 97642421Syokota bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 97742421Syokota return 0; 97842421Syokota} 97942421Syokota 98044628Syokotastatic int 98144628Syokotaatkbd_poll(keyboard_t *kbd, int on) 98244628Syokota{ 98344628Syokota atkbd_state_t *state; 98444628Syokota int s; 98544628Syokota 98644628Syokota state = (atkbd_state_t *)kbd->kb_data; 98744628Syokota s = spltty(); 98844628Syokota if (on) 98944628Syokota ++state->ks_polling; 99044628Syokota else 99144628Syokota --state->ks_polling; 99244628Syokota splx(s); 99344628Syokota return 0; 99444628Syokota} 99544628Syokota 99642421Syokota/* local functions */ 99742421Syokota 99842421Syokotastatic int 99955731Syokotaget_typematic(keyboard_t *kbd) 100055731Syokota{ 100155731Syokota#ifdef __i386__ 100255731Syokota /* 100355731Syokota * Only some systems allow us to retrieve the keyboard repeat 100455731Syokota * rate previously set via the BIOS... 100555731Syokota */ 100655731Syokota struct vm86frame vmf; 100755731Syokota u_int32_t p; 100855731Syokota 100955731Syokota bzero(&vmf, sizeof(vmf)); 101055731Syokota vmf.vmf_ax = 0xc000; 101155731Syokota vm86_intcall(0x15, &vmf); 101255731Syokota if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah) 101355731Syokota return ENODEV; 101455731Syokota p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx); 101555731Syokota if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */ 101655731Syokota return ENODEV; 101755731Syokota vmf.vmf_ax = 0x0900; 101855731Syokota vm86_intcall(0x16, &vmf); 101955731Syokota if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */ 102055731Syokota return ENODEV; 102155731Syokota vmf.vmf_ax = 0x0306; 102255731Syokota vm86_intcall(0x16, &vmf); 102355731Syokota kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5); 102455731Syokota kbd->kb_delay2 = typematic_rate(vmf.vmf_bl); 102555731Syokota return 0; 102655731Syokota#else 102755731Syokota return ENODEV; 102855731Syokota#endif /* __i386__ */ 102955731Syokota} 103055731Syokota 103155731Syokotastatic int 103242421Syokotasetup_kbd_port(KBDC kbdc, int port, int intr) 103342421Syokota{ 103442421Syokota if (!set_controller_command_byte(kbdc, 103542421Syokota KBD_KBD_CONTROL_BITS, 103642421Syokota ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 103742421Syokota | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 103842421Syokota return 1; 103942421Syokota return 0; 104042421Syokota} 104142421Syokota 104242421Syokotastatic int 104342421Syokotaget_kbd_echo(KBDC kbdc) 104442421Syokota{ 104542421Syokota /* enable the keyboard port, but disable the keyboard intr. */ 104642421Syokota if (setup_kbd_port(kbdc, TRUE, FALSE)) 104742421Syokota /* CONTROLLER ERROR: there is very little we can do... */ 104842421Syokota return ENXIO; 104942421Syokota 105042421Syokota /* see if something is present */ 105142421Syokota write_kbd_command(kbdc, KBDC_ECHO); 105242421Syokota if (read_kbd_data(kbdc) != KBD_ECHO) { 105342421Syokota empty_both_buffers(kbdc, 10); 105442421Syokota test_controller(kbdc); 105542421Syokota test_kbd_port(kbdc); 105642421Syokota return ENXIO; 105742421Syokota } 105842421Syokota 105942421Syokota /* enable the keyboard port and intr. */ 106042421Syokota if (setup_kbd_port(kbdc, TRUE, TRUE)) { 106142421Syokota /* 106242421Syokota * CONTROLLER ERROR 106342421Syokota * This is serious; the keyboard intr is left disabled! 106442421Syokota */ 106542421Syokota return ENXIO; 106642421Syokota } 106742421Syokota 106842421Syokota return 0; 106942421Syokota} 107042421Syokota 107142421Syokotastatic int 107242421Syokotaprobe_keyboard(KBDC kbdc, int flags) 107342421Syokota{ 107442421Syokota /* 107542421Syokota * Don't try to print anything in this function. The low-level 107642421Syokota * console may not have been initialized yet... 107742421Syokota */ 107842421Syokota int err; 107942421Syokota int c; 108042421Syokota int m; 108142421Syokota 108242421Syokota if (!kbdc_lock(kbdc, TRUE)) { 108342421Syokota /* driver error? */ 108442421Syokota return ENXIO; 108542421Syokota } 108642421Syokota 108757131Syokota /* temporarily block data transmission from the keyboard */ 108857131Syokota write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 108957131Syokota 109042421Syokota /* flush any noise in the buffer */ 109157131Syokota empty_both_buffers(kbdc, 100); 109242421Syokota 109342421Syokota /* save the current keyboard controller command byte */ 109442421Syokota m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 109542421Syokota c = get_controller_command_byte(kbdc); 109642421Syokota if (c == -1) { 109742421Syokota /* CONTROLLER ERROR */ 109842421Syokota kbdc_set_device_mask(kbdc, m); 109942421Syokota kbdc_lock(kbdc, FALSE); 110042421Syokota return ENXIO; 110142421Syokota } 110242421Syokota 110342421Syokota /* 110442421Syokota * The keyboard may have been screwed up by the boot block. 110542421Syokota * We may just be able to recover from error by testing the controller 110642421Syokota * and the keyboard port. The controller command byte needs to be 110742421Syokota * saved before this recovery operation, as some controllers seem 110842421Syokota * to set the command byte to particular values. 110942421Syokota */ 111042421Syokota test_controller(kbdc); 111142421Syokota test_kbd_port(kbdc); 111242421Syokota 111342421Syokota err = get_kbd_echo(kbdc); 111457902Syokota 111557902Syokota /* 111657902Syokota * Even if the keyboard doesn't seem to be present (err != 0), 111757902Syokota * we shall enable the keyboard port and interrupt so that 111857902Syokota * the driver will be operable when the keyboard is attached 111957902Syokota * to the system later. It is NOT recommended to hot-plug 112057902Syokota * the AT keyboard, but many people do so... 112157902Syokota */ 112257902Syokota kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 112357902Syokota setup_kbd_port(kbdc, TRUE, TRUE); 112457902Syokota#if 0 112542421Syokota if (err == 0) { 112642421Syokota kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 112742421Syokota } else { 112857131Syokota /* try to restore the command byte as before */ 112957131Syokota set_controller_command_byte(kbdc, 0xff, c); 113042421Syokota kbdc_set_device_mask(kbdc, m); 113142421Syokota } 113257902Syokota#endif 113342421Syokota 113442421Syokota kbdc_lock(kbdc, FALSE); 113542421Syokota return err; 113642421Syokota} 113742421Syokota 113842421Syokotastatic int 113942421Syokotainit_keyboard(KBDC kbdc, int *type, int flags) 114042421Syokota{ 114142421Syokota int codeset; 114242421Syokota int id; 114342421Syokota int c; 114442421Syokota 114542421Syokota if (!kbdc_lock(kbdc, TRUE)) { 114642421Syokota /* driver error? */ 114742421Syokota return EIO; 114842421Syokota } 114942421Syokota 115057131Syokota /* temporarily block data transmission from the keyboard */ 115157131Syokota write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 115257131Syokota 115342421Syokota /* save the current controller command byte */ 115454382Syokota empty_both_buffers(kbdc, 200); 115542421Syokota c = get_controller_command_byte(kbdc); 115642421Syokota if (c == -1) { 115742421Syokota /* CONTROLLER ERROR */ 115842421Syokota kbdc_lock(kbdc, FALSE); 115942421Syokota printf("atkbd: unable to get the current command byte value.\n"); 116042421Syokota return EIO; 116142421Syokota } 116242421Syokota if (bootverbose) 116342421Syokota printf("atkbd: the current kbd controller command byte %04x\n", 116442421Syokota c); 116542421Syokota#if 0 116642421Syokota /* override the keyboard lock switch */ 116742421Syokota c |= KBD_OVERRIDE_KBD_LOCK; 116842421Syokota#endif 116942421Syokota 117042421Syokota /* enable the keyboard port, but disable the keyboard intr. */ 117142421Syokota if (setup_kbd_port(kbdc, TRUE, FALSE)) { 117242421Syokota /* CONTROLLER ERROR: there is very little we can do... */ 117342421Syokota printf("atkbd: unable to set the command byte.\n"); 117442421Syokota kbdc_lock(kbdc, FALSE); 117542421Syokota return EIO; 117642421Syokota } 117742421Syokota 117842421Syokota /* 117942421Syokota * Check if we have an XT keyboard before we attempt to reset it. 118042421Syokota * The procedure assumes that the keyboard and the controller have 118142421Syokota * been set up properly by BIOS and have not been messed up 118242421Syokota * during the boot process. 118342421Syokota */ 118442421Syokota codeset = -1; 118542421Syokota if (flags & KB_CONF_ALT_SCANCODESET) 118642421Syokota /* the user says there is a XT keyboard */ 118742421Syokota codeset = 1; 118842421Syokota#ifdef KBD_DETECT_XT_KEYBOARD 118942421Syokota else if ((c & KBD_TRANSLATION) == 0) { 119042421Syokota /* SET_SCANCODE_SET is not always supported; ignore error */ 119142421Syokota if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 119242421Syokota == KBD_ACK) 119342421Syokota codeset = read_kbd_data(kbdc); 119442421Syokota } 119542421Syokota if (bootverbose) 119642421Syokota printf("atkbd: scancode set %d\n", codeset); 119742421Syokota#endif /* KBD_DETECT_XT_KEYBOARD */ 119842421Syokota 119942421Syokota *type = KB_OTHER; 120042421Syokota id = get_kbd_id(kbdc); 120142421Syokota switch(id) { 120255730Syokota case 0x41ab: /* 101/102/... Enhanced */ 120355730Syokota case 0x83ab: /* ditto */ 120455730Syokota case 0x54ab: /* SpaceSaver */ 120555730Syokota case 0x84ab: /* ditto */ 120655730Syokota#if 0 120755730Syokota case 0x90ab: /* 'G' */ 120855730Syokota case 0x91ab: /* 'P' */ 120955730Syokota case 0x92ab: /* 'A' */ 121055730Syokota#endif 121142421Syokota *type = KB_101; 121242421Syokota break; 121342421Syokota case -1: /* AT 84 keyboard doesn't return ID */ 121442421Syokota *type = KB_84; 121542421Syokota break; 121642421Syokota default: 121742421Syokota break; 121842421Syokota } 121942421Syokota if (bootverbose) 122042421Syokota printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 122142421Syokota 122242421Syokota /* reset keyboard hardware */ 122342421Syokota if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 122442421Syokota /* 122542421Syokota * KEYBOARD ERROR 122642421Syokota * Keyboard reset may fail either because the keyboard 122742421Syokota * doen't exist, or because the keyboard doesn't pass 122842421Syokota * the self-test, or the keyboard controller on the 122942421Syokota * motherboard and the keyboard somehow fail to shake hands. 123042421Syokota * It is just possible, particularly in the last case, 123142421Syokota * that the keyoard controller may be left in a hung state. 123242421Syokota * test_controller() and test_kbd_port() appear to bring 123342421Syokota * the keyboard controller back (I don't know why and how, 123442421Syokota * though.) 123542421Syokota */ 123642421Syokota empty_both_buffers(kbdc, 10); 123742421Syokota test_controller(kbdc); 123842421Syokota test_kbd_port(kbdc); 123942421Syokota /* 124042421Syokota * We could disable the keyboard port and interrupt... but, 124142421Syokota * the keyboard may still exist (see above). 124242421Syokota */ 124342421Syokota set_controller_command_byte(kbdc, 0xff, c); 124442421Syokota kbdc_lock(kbdc, FALSE); 124542421Syokota if (bootverbose) 124642421Syokota printf("atkbd: failed to reset the keyboard.\n"); 124742421Syokota return EIO; 124842421Syokota } 124942421Syokota 125042421Syokota /* 125142421Syokota * Allow us to set the XT_KEYBD flag in UserConfig so that keyboards 125242421Syokota * such as those on the IBM ThinkPad laptop computers can be used 125342421Syokota * with the standard console driver. 125442421Syokota */ 125542421Syokota if (codeset == 1) { 125642421Syokota if (send_kbd_command_and_data(kbdc, 125742421Syokota KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 125842421Syokota /* XT kbd doesn't need scan code translation */ 125942421Syokota c &= ~KBD_TRANSLATION; 126042421Syokota } else { 126142421Syokota /* 126242421Syokota * KEYBOARD ERROR 126342421Syokota * The XT kbd isn't usable unless the proper scan 126442421Syokota * code set is selected. 126542421Syokota */ 126642421Syokota set_controller_command_byte(kbdc, 0xff, c); 126742421Syokota kbdc_lock(kbdc, FALSE); 126842421Syokota printf("atkbd: unable to set the XT keyboard mode.\n"); 126942421Syokota return EIO; 127042421Syokota } 127142421Syokota } 127242421Syokota 127342831Syokota#ifdef __alpha__ 127442831Syokota if (send_kbd_command_and_data( 127542831Syokota kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 127642831Syokota printf("atkbd: can't set translation.\n"); 127742831Syokota 127842831Syokota } 127942831Syokota c |= KBD_TRANSLATION; 128042831Syokota#endif 128142831Syokota 128242421Syokota /* enable the keyboard port and intr. */ 128342421Syokota if (!set_controller_command_byte(kbdc, 128442421Syokota KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 128542421Syokota (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 128642421Syokota | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 128742421Syokota /* 128842421Syokota * CONTROLLER ERROR 128942421Syokota * This is serious; we are left with the disabled 129042421Syokota * keyboard intr. 129142421Syokota */ 129242421Syokota set_controller_command_byte(kbdc, 0xff, c); 129342421Syokota kbdc_lock(kbdc, FALSE); 129442421Syokota printf("atkbd: unable to enable the keyboard port and intr.\n"); 129542421Syokota return EIO; 129642421Syokota } 129742421Syokota 129842421Syokota kbdc_lock(kbdc, FALSE); 129942421Syokota return 0; 130042421Syokota} 130142421Syokota 130242421Syokotastatic int 130342421Syokotawrite_kbd(KBDC kbdc, int command, int data) 130442421Syokota{ 130542421Syokota int s; 130642421Syokota 130742421Syokota /* prevent the timeout routine from polling the keyboard */ 130842421Syokota if (!kbdc_lock(kbdc, TRUE)) 130942421Syokota return EBUSY; 131042421Syokota 131142421Syokota /* disable the keyboard and mouse interrupt */ 131242421Syokota s = spltty(); 131342421Syokota#if 0 131442421Syokota c = get_controller_command_byte(kbdc); 131542421Syokota if ((c == -1) 131642421Syokota || !set_controller_command_byte(kbdc, 131742421Syokota kbdc_get_device_mask(kbdc), 131842421Syokota KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 131942421Syokota | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 132042421Syokota /* CONTROLLER ERROR */ 132142421Syokota kbdc_lock(kbdc, FALSE); 132242421Syokota splx(s); 132342421Syokota return EIO; 132442421Syokota } 132542421Syokota /* 132642421Syokota * Now that the keyboard controller is told not to generate 132742421Syokota * the keyboard and mouse interrupts, call `splx()' to allow 132842421Syokota * the other tty interrupts. The clock interrupt may also occur, 132942421Syokota * but the timeout routine (`scrn_timer()') will be blocked 133042421Syokota * by the lock flag set via `kbdc_lock()' 133142421Syokota */ 133242421Syokota splx(s); 133342421Syokota#endif 133442421Syokota 133542421Syokota if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 133642421Syokota send_kbd_command(kbdc, KBDC_ENABLE_KBD); 133742421Syokota 133842421Syokota#if 0 133942421Syokota /* restore the interrupts */ 134042421Syokota if (!set_controller_command_byte(kbdc, 134142421Syokota kbdc_get_device_mask(kbdc), 134242421Syokota c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 134342421Syokota /* CONTROLLER ERROR */ 134442421Syokota } 134542421Syokota#else 134642421Syokota splx(s); 134742421Syokota#endif 134842421Syokota kbdc_lock(kbdc, FALSE); 134942421Syokota 135042421Syokota return 0; 135142421Syokota} 135242421Syokota 135342421Syokotastatic int 135442421Syokotaget_kbd_id(KBDC kbdc) 135542421Syokota{ 135642421Syokota int id1, id2; 135742421Syokota 135842421Syokota empty_both_buffers(kbdc, 10); 135942421Syokota id1 = id2 = -1; 136042421Syokota if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 136142421Syokota return -1; 136242421Syokota 136342421Syokota DELAY(10000); /* 10 msec delay */ 136442421Syokota id1 = read_kbd_data(kbdc); 136542421Syokota if (id1 != -1) 136642421Syokota id2 = read_kbd_data(kbdc); 136742421Syokota 136842421Syokota if ((id1 == -1) || (id2 == -1)) { 136942421Syokota empty_both_buffers(kbdc, 10); 137042421Syokota test_controller(kbdc); 137142421Syokota test_kbd_port(kbdc); 137242421Syokota return -1; 137342421Syokota } 137442421Syokota return ((id2 << 8) | id1); 137542421Syokota} 137642421Syokota 137754543Syokotastatic int delays[] = { 250, 500, 750, 1000 }; 137854543Syokotastatic int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 137954543Syokota 68, 76, 84, 92, 100, 110, 118, 126, 138054543Syokota 136, 152, 168, 184, 200, 220, 236, 252, 138154543Syokota 272, 304, 336, 368, 400, 440, 472, 504 }; 138254543Syokota 138344628Syokotastatic int 138454543Syokotatypematic_delay(int i) 138554543Syokota{ 138654543Syokota return delays[(i >> 5) & 3]; 138754543Syokota} 138854543Syokota 138954543Syokotastatic int 139054543Syokotatypematic_rate(int i) 139154543Syokota{ 139254543Syokota return rates[i & 0x1f]; 139354543Syokota} 139454543Syokota 139554543Syokotastatic int 139644628Syokotatypematic(int delay, int rate) 139744628Syokota{ 139844628Syokota int value; 139944628Syokota int i; 140044628Syokota 140144628Syokota for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 140244628Syokota if (delay >= delays[i]) 140344628Syokota break; 140444628Syokota } 140544628Syokota value = i << 5; 140644628Syokota for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 140744628Syokota if (rate >= rates[i]) 140844628Syokota break; 140944628Syokota } 141044628Syokota value |= i; 141144628Syokota return value; 141244628Syokota} 1413