atkbd.c revision 119418
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 * 2642421Syokota */ 2742421Syokota 28119418Sobrien#include <sys/cdefs.h> 29119418Sobrien__FBSDID("$FreeBSD: head/sys/dev/atkbdc/atkbd.c 119418 2003-08-24 17:55:58Z obrien $"); 30119418Sobrien 3142421Syokota#include "opt_kbd.h" 3244628Syokota#include "opt_atkbd.h" 3342421Syokota 3442421Syokota#include <sys/param.h> 3542421Syokota#include <sys/systm.h> 3642421Syokota#include <sys/kernel.h> 3747336Syokota#include <sys/bus.h> 3842421Syokota#include <sys/proc.h> 39114216Skan#include <sys/limits.h> 4042421Syokota#include <sys/malloc.h> 4142421Syokota 4258271Syokota#include <machine/bus.h> 4358271Syokota#include <machine/resource.h> 4458271Syokota 4555731Syokota#ifdef __i386__ 4655731Syokota#include <machine/md_var.h> 4755731Syokota#include <machine/psl.h> 4855731Syokota#include <machine/vm86.h> 4955731Syokota#include <machine/pc/bios.h> 5055731Syokota 5155731Syokota#include <vm/vm.h> 5255731Syokota#include <vm/pmap.h> 5355731Syokota#endif /* __i386__ */ 5455731Syokota 5580040Syokota#include <sys/kbio.h> 5642421Syokota#include <dev/kbd/kbdreg.h> 5742421Syokota#include <dev/kbd/atkbdreg.h> 5842421Syokota#include <dev/kbd/atkbdcreg.h> 5942421Syokota 6042831Syokota#include <isa/isareg.h> 6142831Syokota 6242421Syokotastatic timeout_t atkbd_timeout; 6342421Syokota 6442421Syokotaint 6558271Syokotaatkbd_probe_unit(int unit, int ctlr, int irq, int flags) 6642421Syokota{ 6742421Syokota keyboard_switch_t *sw; 6842421Syokota int args[2]; 6944628Syokota int error; 7042421Syokota 7142421Syokota sw = kbd_get_switch(ATKBD_DRIVER_NAME); 7242421Syokota if (sw == NULL) 7342421Syokota return ENXIO; 7442421Syokota 7558271Syokota args[0] = ctlr; 7642421Syokota args[1] = irq; 7744628Syokota error = (*sw->probe)(unit, args, flags); 7844628Syokota if (error) 7944628Syokota return error; 8044628Syokota return 0; 8142421Syokota} 8242421Syokota 8342421Syokotaint 8458271Syokotaatkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags) 8542421Syokota{ 8642421Syokota keyboard_switch_t *sw; 8744628Syokota int args[2]; 8842421Syokota int error; 8942421Syokota 9042421Syokota sw = kbd_get_switch(ATKBD_DRIVER_NAME); 9142421Syokota if (sw == NULL) 9242421Syokota return ENXIO; 9342421Syokota 9442421Syokota /* reset, initialize and enable the device */ 9558271Syokota args[0] = ctlr; 9644628Syokota args[1] = irq; 9750154Syokota *kbd = NULL; 9844628Syokota error = (*sw->probe)(unit, args, flags); 9942421Syokota if (error) 10044628Syokota return error; 10150154Syokota error = (*sw->init)(unit, kbd, args, flags); 10244628Syokota if (error) 10344628Syokota return error; 10450154Syokota (*sw->enable)(*kbd); 10542421Syokota 10642421Syokota#ifdef KBD_INSTALL_CDEV 10742421Syokota /* attach a virtual keyboard cdev */ 10850154Syokota error = kbd_attach(*kbd); 10942421Syokota if (error) 11042421Syokota return error; 11142421Syokota#endif 11242421Syokota 11342421Syokota /* 11442421Syokota * This is a kludge to compensate for lost keyboard interrupts. 11542421Syokota * A similar code used to be in syscons. See below. XXX 11642421Syokota */ 11750154Syokota atkbd_timeout(*kbd); 11842421Syokota 11942421Syokota if (bootverbose) 12050154Syokota (*sw->diag)(*kbd, bootverbose); 12142421Syokota return 0; 12242421Syokota} 12342421Syokota 12442421Syokotastatic void 12542421Syokotaatkbd_timeout(void *arg) 12642421Syokota{ 12742421Syokota keyboard_t *kbd; 12842421Syokota int s; 12942421Syokota 13056334Syokota /* 13156334Syokota * The original text of the following comments are extracted 13256334Syokota * from syscons.c (1.287) 13356334Syokota * 13442421Syokota * With release 2.1 of the Xaccel server, the keyboard is left 13542421Syokota * hanging pretty often. Apparently an interrupt from the 13642421Syokota * keyboard is lost, and I don't know why (yet). 13756334Syokota * This ugly hack calls the low-level interrupt routine if input 13856334Syokota * is ready for the keyboard and conveniently hides the problem. XXX 13956334Syokota * 14056334Syokota * Try removing anything stuck in the keyboard controller; whether 14156334Syokota * it's a keyboard scan code or mouse data. The low-level 14256334Syokota * interrupt routine doesn't read the mouse data directly, 14356334Syokota * but the keyboard controller driver will, as a side effect. 14442421Syokota */ 14542421Syokota /* 14656334Syokota * And here is bde's original comment about this: 14756334Syokota * 14856334Syokota * This is necessary to handle edge triggered interrupts - if we 14956334Syokota * returned when our IRQ is high due to unserviced input, then there 15056334Syokota * would be no more keyboard IRQs until the keyboard is reset by 15156334Syokota * external powers. 15256334Syokota * 15356334Syokota * The keyboard apparently unwedges the irq in most cases. 15442421Syokota */ 15542421Syokota s = spltty(); 15642421Syokota kbd = (keyboard_t *)arg; 15742421Syokota if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) { 15842421Syokota /* 15942421Syokota * We have seen the lock flag is not set. Let's reset 16042421Syokota * the flag early, otherwise the LED update routine fails 16142421Syokota * which may want the lock during the interrupt routine. 16242421Syokota */ 16342421Syokota (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE); 16442421Syokota if ((*kbdsw[kbd->kb_index]->check_char)(kbd)) 16544628Syokota (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 16642421Syokota } 16742421Syokota splx(s); 16842421Syokota timeout(atkbd_timeout, arg, hz/10); 16942421Syokota} 17042421Syokota 17142421Syokota/* LOW-LEVEL */ 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 210114293Smarkmstatic keyboard_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. 26894228Sasmodai * NOTE: because of the way the low-level console 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 */ 282117167Sjhb if (resource_disabled("atkbd", ATKBD_DEFAULT)) { 28346764Syokota i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 28446764Syokota if (i >= 0) { 28546764Syokota kbd = kbd_get_keyboard(i); 28646764Syokota kbd_unregister(kbd); 28746764Syokota kbd->kb_flags &= ~KB_REGISTERED; 28844628Syokota } 28948878Syokota return 0; 29044628Syokota } 29145720Speter 29246764Syokota /* XXX: a kludge to obtain the device configuration flags */ 29346764Syokota if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 29446764Syokota flags |= i; 29546764Syokota 29642421Syokota /* probe the default keyboard */ 29742421Syokota arg[0] = -1; 29842421Syokota arg[1] = -1; 29944628Syokota kbd = NULL; 30044628Syokota if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 30142421Syokota return 0; 30244628Syokota if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 30344628Syokota return 0; 30442421Syokota 30544628Syokota /* return the number of found keyboards */ 30644628Syokota return 1; 30744628Syokota} 30844628Syokota 30944628Syokota/* low-level functions */ 31044628Syokota 31144628Syokota/* detect a keyboard */ 31244628Syokotastatic int 31344628Syokotaatkbd_probe(int unit, void *arg, int flags) 31444628Syokota{ 31544628Syokota KBDC kbdc; 31658271Syokota int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 31744628Syokota 31844628Syokota /* XXX */ 31944628Syokota if (unit == ATKBD_DEFAULT) { 32044628Syokota if (KBD_IS_PROBED(&default_kbd)) 32142421Syokota return 0; 32242421Syokota } 32342421Syokota 32458271Syokota kbdc = atkbdc_open(data[0]); 32544628Syokota if (kbdc == NULL) 32644628Syokota return ENXIO; 32744628Syokota if (probe_keyboard(kbdc, flags)) { 32844628Syokota if (flags & KB_CONF_FAIL_IF_NO_KBD) 32944628Syokota return ENXIO; 33042421Syokota } 33144628Syokota return 0; 33242421Syokota} 33342421Syokota 33444628Syokota/* reset and initialize the device */ 33542421Syokotastatic int 33644628Syokotaatkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 33742421Syokota{ 33842421Syokota keyboard_t *kbd; 33942421Syokota atkbd_state_t *state; 34042421Syokota keymap_t *keymap; 34142421Syokota accentmap_t *accmap; 34242421Syokota fkeytab_t *fkeymap; 34342421Syokota int fkeymap_size; 34455731Syokota int delay[2]; 34558271Syokota int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 34642421Syokota 34742421Syokota /* XXX */ 34842421Syokota if (unit == ATKBD_DEFAULT) { 34942421Syokota *kbdp = kbd = &default_kbd; 35044628Syokota if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 35142421Syokota return 0; 35242421Syokota state = &default_kbd_state; 35342421Syokota keymap = &default_keymap; 35442421Syokota accmap = &default_accentmap; 35542421Syokota fkeymap = default_fkeytab; 35642421Syokota fkeymap_size = 35742421Syokota sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 35842421Syokota } else if (*kbdp == NULL) { 35969781Sdwmalone *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 36069781Sdwmalone state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 36142421Syokota keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 36242421Syokota accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 36342421Syokota fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 36442421Syokota fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 36569781Sdwmalone if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 36669781Sdwmalone || (accmap == NULL) || (fkeymap == NULL)) { 36742421Syokota if (state != NULL) 36842421Syokota free(state, M_DEVBUF); 36942421Syokota if (keymap != NULL) 37042421Syokota free(keymap, M_DEVBUF); 37142421Syokota if (accmap != NULL) 37242421Syokota free(accmap, M_DEVBUF); 37342421Syokota if (fkeymap != NULL) 37442421Syokota free(fkeymap, M_DEVBUF); 37571394Sdwmalone if (kbd != NULL) 37669781Sdwmalone free(kbd, M_DEVBUF); 37742421Syokota return ENOMEM; 37842421Syokota } 37944628Syokota } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 38042421Syokota return 0; 38142421Syokota } else { 38242421Syokota kbd = *kbdp; 38342421Syokota state = (atkbd_state_t *)kbd->kb_data; 38442421Syokota bzero(state, sizeof(*state)); 38542421Syokota keymap = kbd->kb_keymap; 38642421Syokota accmap = kbd->kb_accentmap; 38742421Syokota fkeymap = kbd->kb_fkeytab; 38842421Syokota fkeymap_size = kbd->kb_fkeytab_size; 38942421Syokota } 39042421Syokota 39144628Syokota if (!KBD_IS_PROBED(kbd)) { 39258271Syokota state->kbdc = atkbdc_open(data[0]); 39344628Syokota if (state->kbdc == NULL) 39442421Syokota return ENXIO; 39544628Syokota kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 39658271Syokota 0, 0); 39744628Syokota bcopy(&key_map, keymap, sizeof(key_map)); 39844628Syokota bcopy(&accent_map, accmap, sizeof(accent_map)); 39944628Syokota bcopy(fkey_tab, fkeymap, 40044628Syokota imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 40144628Syokota kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 40244628Syokota kbd->kb_data = (void *)state; 40344628Syokota 40444628Syokota if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 40544628Syokota if (flags & KB_CONF_FAIL_IF_NO_KBD) 40644628Syokota return ENXIO; 40744628Syokota } else { 40844628Syokota KBD_FOUND_DEVICE(kbd); 40944628Syokota } 41044628Syokota atkbd_clear_state(kbd); 41144628Syokota state->ks_mode = K_XLATE; 41244628Syokota /* 41344628Syokota * FIXME: set the initial value for lock keys in ks_state 41444628Syokota * according to the BIOS data? 41544628Syokota */ 41644628Syokota KBD_PROBE_DONE(kbd); 41742421Syokota } 41844628Syokota if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 41949820Syokota kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 42042421Syokota if (KBD_HAS_DEVICE(kbd) 42144628Syokota && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 422117513Ssimokawa && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 423117513Ssimokawa kbd_unregister(kbd); 42442421Syokota return ENXIO; 425117513Ssimokawa } 42644628Syokota atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 42755731Syokota get_typematic(kbd); 42855731Syokota delay[0] = kbd->kb_delay1; 42955731Syokota delay[1] = kbd->kb_delay2; 43055731Syokota atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 43142421Syokota KBD_INIT_DONE(kbd); 43242421Syokota } 43342421Syokota if (!KBD_IS_CONFIGURED(kbd)) { 43442421Syokota if (kbd_register(kbd) < 0) 43542421Syokota return ENXIO; 43642421Syokota KBD_CONFIG_DONE(kbd); 43742421Syokota } 43842421Syokota 43942421Syokota return 0; 44042421Syokota} 44142421Syokota 44242421Syokota/* finish using this keyboard */ 44342421Syokotastatic int 44442421Syokotaatkbd_term(keyboard_t *kbd) 44542421Syokota{ 44642421Syokota kbd_unregister(kbd); 44742421Syokota return 0; 44842421Syokota} 44942421Syokota 45042421Syokota/* keyboard interrupt routine */ 45142421Syokotastatic int 45244628Syokotaatkbd_intr(keyboard_t *kbd, void *arg) 45342421Syokota{ 45442421Syokota atkbd_state_t *state; 45555731Syokota int delay[2]; 45642421Syokota int c; 45742421Syokota 45842421Syokota if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 45942421Syokota /* let the callback function to process the input */ 46042421Syokota (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 46142421Syokota kbd->kb_callback.kc_arg); 46242421Syokota } else { 46342421Syokota /* read and discard the input; no one is waiting for input */ 46442421Syokota do { 46542421Syokota c = atkbd_read_char(kbd, FALSE); 46642421Syokota } while (c != NOKEY); 46742421Syokota 46842421Syokota if (!KBD_HAS_DEVICE(kbd)) { 46942421Syokota /* 47042421Syokota * The keyboard was not detected before; 47142421Syokota * it must have been reconnected! 47242421Syokota */ 47342421Syokota state = (atkbd_state_t *)kbd->kb_data; 47442421Syokota init_keyboard(state->kbdc, &kbd->kb_type, 47542421Syokota kbd->kb_config); 47642421Syokota atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 47755731Syokota get_typematic(kbd); 47855731Syokota delay[0] = kbd->kb_delay1; 47955731Syokota delay[1] = kbd->kb_delay2; 48055731Syokota atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 48142421Syokota KBD_FOUND_DEVICE(kbd); 48242421Syokota } 48342421Syokota } 48442421Syokota return 0; 48542421Syokota} 48642421Syokota 48742421Syokota/* test the interface to the device */ 48842421Syokotastatic int 48942421Syokotaatkbd_test_if(keyboard_t *kbd) 49042421Syokota{ 49142421Syokota int error; 49242421Syokota int s; 49342421Syokota 49442421Syokota error = 0; 49542421Syokota empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 49642421Syokota s = spltty(); 49742421Syokota if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 49842421Syokota error = EIO; 49942421Syokota else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 50042421Syokota error = EIO; 50142421Syokota splx(s); 50242421Syokota 50342421Syokota return error; 50442421Syokota} 50542421Syokota 50642421Syokota/* 50742421Syokota * Enable the access to the device; until this function is called, 50842421Syokota * the client cannot read from the keyboard. 50942421Syokota */ 51042421Syokotastatic int 51142421Syokotaatkbd_enable(keyboard_t *kbd) 51242421Syokota{ 51342421Syokota int s; 51442421Syokota 51542421Syokota s = spltty(); 51642421Syokota KBD_ACTIVATE(kbd); 51742421Syokota splx(s); 51842421Syokota return 0; 51942421Syokota} 52042421Syokota 52142421Syokota/* disallow the access to the device */ 52242421Syokotastatic int 52342421Syokotaatkbd_disable(keyboard_t *kbd) 52442421Syokota{ 52542421Syokota int s; 52642421Syokota 52742421Syokota s = spltty(); 52842421Syokota KBD_DEACTIVATE(kbd); 52942421Syokota splx(s); 53042421Syokota return 0; 53142421Syokota} 53242421Syokota 53342421Syokota/* read one byte from the keyboard if it's allowed */ 53442421Syokotastatic int 53542421Syokotaatkbd_read(keyboard_t *kbd, int wait) 53642421Syokota{ 53742421Syokota int c; 53842421Syokota 53942421Syokota if (wait) 54042421Syokota c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 54142421Syokota else 54242421Syokota c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 54354382Syokota if (c != -1) 54454382Syokota ++kbd->kb_count; 54542421Syokota return (KBD_IS_ACTIVE(kbd) ? c : -1); 54642421Syokota} 54742421Syokota 54842421Syokota/* check if data is waiting */ 54942421Syokotastatic int 55042421Syokotaatkbd_check(keyboard_t *kbd) 55142421Syokota{ 55242421Syokota if (!KBD_IS_ACTIVE(kbd)) 55342421Syokota return FALSE; 55442421Syokota return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 55542421Syokota} 55642421Syokota 55742421Syokota/* read char from the keyboard */ 55842421Syokotastatic u_int 55942421Syokotaatkbd_read_char(keyboard_t *kbd, int wait) 56042421Syokota{ 56142421Syokota atkbd_state_t *state; 56242421Syokota u_int action; 56342421Syokota int scancode; 56442421Syokota int keycode; 56542421Syokota 56642421Syokota state = (atkbd_state_t *)kbd->kb_data; 56742421Syokotanext_code: 56842421Syokota /* do we have a composed char to return? */ 56942421Syokota if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 57042421Syokota action = state->ks_composed_char; 57142421Syokota state->ks_composed_char = 0; 57242421Syokota if (action > UCHAR_MAX) 57342421Syokota return ERRKEY; 57442421Syokota return action; 57542421Syokota } 57642421Syokota 57742421Syokota /* see if there is something in the keyboard port */ 57842421Syokota if (wait) { 57942421Syokota do { 58042421Syokota scancode = read_kbd_data(state->kbdc); 58142421Syokota } while (scancode == -1); 58242421Syokota } else { 58342421Syokota scancode = read_kbd_data_no_wait(state->kbdc); 58442421Syokota if (scancode == -1) 58542421Syokota return NOKEY; 58642421Syokota } 58754382Syokota ++kbd->kb_count; 58842421Syokota 58954382Syokota#if KBDIO_DEBUG >= 10 59054382Syokota printf("atkbd_read_char(): scancode:0x%x\n", scancode); 59154382Syokota#endif 59254382Syokota 59342421Syokota /* return the byte as is for the K_RAW mode */ 59442421Syokota if (state->ks_mode == K_RAW) 59542421Syokota return scancode; 59642421Syokota 59742421Syokota /* translate the scan code into a keycode */ 59842421Syokota keycode = scancode & 0x7F; 59942421Syokota switch (state->ks_prefix) { 60042421Syokota case 0x00: /* normal scancode */ 60142421Syokota switch(scancode) { 60242421Syokota case 0xB8: /* left alt (compose key) released */ 60342421Syokota if (state->ks_flags & COMPOSE) { 60442421Syokota state->ks_flags &= ~COMPOSE; 60542421Syokota if (state->ks_composed_char > UCHAR_MAX) 60642421Syokota state->ks_composed_char = 0; 60742421Syokota } 60842421Syokota break; 60942421Syokota case 0x38: /* left alt (compose key) pressed */ 61042421Syokota if (!(state->ks_flags & COMPOSE)) { 61142421Syokota state->ks_flags |= COMPOSE; 61242421Syokota state->ks_composed_char = 0; 61342421Syokota } 61442421Syokota break; 61542421Syokota case 0xE0: 61642421Syokota case 0xE1: 61742421Syokota state->ks_prefix = scancode; 61842421Syokota goto next_code; 61942421Syokota } 62042421Syokota break; 62142421Syokota case 0xE0: /* 0xE0 prefix */ 62242421Syokota state->ks_prefix = 0; 62342421Syokota switch (keycode) { 62442421Syokota case 0x1C: /* right enter key */ 62542421Syokota keycode = 0x59; 62642421Syokota break; 62742421Syokota case 0x1D: /* right ctrl key */ 62842421Syokota keycode = 0x5A; 62942421Syokota break; 63042421Syokota case 0x35: /* keypad divide key */ 63142421Syokota keycode = 0x5B; 63242421Syokota break; 63342421Syokota case 0x37: /* print scrn key */ 63442421Syokota keycode = 0x5C; 63542421Syokota break; 63642421Syokota case 0x38: /* right alt key (alt gr) */ 63742421Syokota keycode = 0x5D; 63842421Syokota break; 63943337Syokota case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 64043337Syokota keycode = 0x68; 64143337Syokota break; 64242421Syokota case 0x47: /* grey home key */ 64342421Syokota keycode = 0x5E; 64442421Syokota break; 64542421Syokota case 0x48: /* grey up arrow key */ 64642421Syokota keycode = 0x5F; 64742421Syokota break; 64842421Syokota case 0x49: /* grey page up key */ 64942421Syokota keycode = 0x60; 65042421Syokota break; 65142421Syokota case 0x4B: /* grey left arrow key */ 65242421Syokota keycode = 0x61; 65342421Syokota break; 65442421Syokota case 0x4D: /* grey right arrow key */ 65542421Syokota keycode = 0x62; 65642421Syokota break; 65742421Syokota case 0x4F: /* grey end key */ 65842421Syokota keycode = 0x63; 65942421Syokota break; 66042421Syokota case 0x50: /* grey down arrow key */ 66142421Syokota keycode = 0x64; 66242421Syokota break; 66342421Syokota case 0x51: /* grey page down key */ 66442421Syokota keycode = 0x65; 66542421Syokota break; 66642421Syokota case 0x52: /* grey insert key */ 66742421Syokota keycode = 0x66; 66842421Syokota break; 66942421Syokota case 0x53: /* grey delete key */ 67042421Syokota keycode = 0x67; 67142421Syokota break; 67242421Syokota /* the following 3 are only used on the MS "Natural" keyboard */ 67342421Syokota case 0x5b: /* left Window key */ 67442421Syokota keycode = 0x69; 67542421Syokota break; 67642421Syokota case 0x5c: /* right Window key */ 67742421Syokota keycode = 0x6a; 67842421Syokota break; 67942421Syokota case 0x5d: /* menu key */ 68042421Syokota keycode = 0x6b; 68142421Syokota break; 68242421Syokota default: /* ignore everything else */ 68342421Syokota goto next_code; 68442421Syokota } 68542421Syokota break; 68642421Syokota case 0xE1: /* 0xE1 prefix */ 68743337Syokota /* 68843337Syokota * The pause/break key on the 101 keyboard produces: 68943337Syokota * E1-1D-45 E1-9D-C5 69043337Syokota * Ctrl-pause/break produces: 69143337Syokota * E0-46 E0-C6 (See above.) 69243337Syokota */ 69342421Syokota state->ks_prefix = 0; 69442421Syokota if (keycode == 0x1D) 69542421Syokota state->ks_prefix = 0x1D; 69642421Syokota goto next_code; 69742421Syokota /* NOT REACHED */ 69842421Syokota case 0x1D: /* pause / break */ 69942421Syokota state->ks_prefix = 0; 70042421Syokota if (keycode != 0x45) 70143337Syokota goto next_code; 70242421Syokota keycode = 0x68; 70342421Syokota break; 70442421Syokota } 70542421Syokota 70643337Syokota if (kbd->kb_type == KB_84) { 70743337Syokota switch (keycode) { 70843337Syokota case 0x37: /* *(numpad)/print screen */ 70943337Syokota if (state->ks_flags & SHIFTS) 71043337Syokota keycode = 0x5c; /* print screen */ 71143337Syokota break; 71243337Syokota case 0x45: /* num lock/pause */ 71343337Syokota if (state->ks_flags & CTLS) 71443337Syokota keycode = 0x68; /* pause */ 71543337Syokota break; 71643337Syokota case 0x46: /* scroll lock/break */ 71743337Syokota if (state->ks_flags & CTLS) 71843337Syokota keycode = 0x6c; /* break */ 71943337Syokota break; 72043337Syokota } 72143337Syokota } else if (kbd->kb_type == KB_101) { 72243337Syokota switch (keycode) { 72343337Syokota case 0x5c: /* print screen */ 72443337Syokota if (state->ks_flags & ALTS) 72543337Syokota keycode = 0x54; /* sysrq */ 72643337Syokota break; 72743337Syokota case 0x68: /* pause/break */ 72843337Syokota if (state->ks_flags & CTLS) 72943337Syokota keycode = 0x6c; /* break */ 73043337Syokota break; 73143337Syokota } 73243337Syokota } 73343337Syokota 73442421Syokota /* return the key code in the K_CODE mode */ 73542421Syokota if (state->ks_mode == K_CODE) 73642421Syokota return (keycode | (scancode & 0x80)); 73742421Syokota 73842421Syokota /* compose a character code */ 73942421Syokota if (state->ks_flags & COMPOSE) { 74047293Syokota switch (keycode | (scancode & 0x80)) { 74142421Syokota /* key pressed, process it */ 74242421Syokota case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 74342421Syokota state->ks_composed_char *= 10; 74446765Syokota state->ks_composed_char += keycode - 0x40; 74542421Syokota if (state->ks_composed_char > UCHAR_MAX) 74642421Syokota return ERRKEY; 74742421Syokota goto next_code; 74842421Syokota case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 74942421Syokota state->ks_composed_char *= 10; 75046765Syokota state->ks_composed_char += keycode - 0x47; 75142421Syokota if (state->ks_composed_char > UCHAR_MAX) 75242421Syokota return ERRKEY; 75342421Syokota goto next_code; 75442421Syokota case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 75542421Syokota state->ks_composed_char *= 10; 75646765Syokota state->ks_composed_char += keycode - 0x4E; 75742421Syokota if (state->ks_composed_char > UCHAR_MAX) 75842421Syokota return ERRKEY; 75942421Syokota goto next_code; 76042421Syokota case 0x52: /* keypad 0 */ 76142421Syokota state->ks_composed_char *= 10; 76242421Syokota if (state->ks_composed_char > UCHAR_MAX) 76342421Syokota return ERRKEY; 76442421Syokota goto next_code; 76542421Syokota 76642421Syokota /* key released, no interest here */ 76742421Syokota case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 76842421Syokota case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 76942421Syokota case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 77042421Syokota case 0xD2: /* keypad 0 */ 77142421Syokota goto next_code; 77242421Syokota 77342421Syokota case 0x38: /* left alt key */ 77442421Syokota break; 77542421Syokota 77642421Syokota default: 77742421Syokota if (state->ks_composed_char > 0) { 77842421Syokota state->ks_flags &= ~COMPOSE; 77942421Syokota state->ks_composed_char = 0; 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); 78942421Syokota if (action == NOKEY) 79042421Syokota goto next_code; 79142421Syokota else 79242421Syokota return action; 79342421Syokota} 79442421Syokota 79542421Syokota/* check if char is waiting */ 79642421Syokotastatic int 79742421Syokotaatkbd_check_char(keyboard_t *kbd) 79842421Syokota{ 79942421Syokota atkbd_state_t *state; 80042421Syokota 80142421Syokota if (!KBD_IS_ACTIVE(kbd)) 80242421Syokota return FALSE; 80342421Syokota state = (atkbd_state_t *)kbd->kb_data; 80442421Syokota if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 80542421Syokota return TRUE; 80642421Syokota return kbdc_data_ready(state->kbdc); 80742421Syokota} 80842421Syokota 80942421Syokota/* some useful control functions */ 81042421Syokotastatic int 81142421Syokotaatkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 81242421Syokota{ 81342421Syokota /* trasnlate LED_XXX bits into the device specific bits */ 81442421Syokota static u_char ledmap[8] = { 81542421Syokota 0, 4, 2, 6, 1, 5, 3, 7, 81642421Syokota }; 81742421Syokota atkbd_state_t *state = kbd->kb_data; 81842421Syokota int error; 81942421Syokota int s; 82042421Syokota int i; 82142421Syokota 82242421Syokota s = spltty(); 82342421Syokota switch (cmd) { 82442421Syokota 82542421Syokota case KDGKBMODE: /* get keyboard mode */ 82642421Syokota *(int *)arg = state->ks_mode; 82742421Syokota break; 82842421Syokota case KDSKBMODE: /* set keyboard mode */ 82942421Syokota switch (*(int *)arg) { 83042421Syokota case K_XLATE: 83142421Syokota if (state->ks_mode != K_XLATE) { 83242421Syokota /* make lock key state and LED state match */ 83342421Syokota state->ks_state &= ~LOCK_MASK; 83442421Syokota state->ks_state |= KBD_LED_VAL(kbd); 83542421Syokota } 836102412Scharnier /* FALLTHROUGH */ 83742421Syokota case K_RAW: 83842421Syokota case K_CODE: 83942421Syokota if (state->ks_mode != *(int *)arg) { 84042421Syokota atkbd_clear_state(kbd); 84142421Syokota state->ks_mode = *(int *)arg; 84242421Syokota } 84342421Syokota break; 84442421Syokota default: 84542421Syokota splx(s); 84642421Syokota return EINVAL; 84742421Syokota } 84842421Syokota break; 84942421Syokota 85042421Syokota case KDGETLED: /* get keyboard LED */ 85142421Syokota *(int *)arg = KBD_LED_VAL(kbd); 85242421Syokota break; 85342421Syokota case KDSETLED: /* set keyboard LED */ 85442421Syokota /* NOTE: lock key state in ks_state won't be changed */ 85542421Syokota if (*(int *)arg & ~LOCK_MASK) { 85642421Syokota splx(s); 85742421Syokota return EINVAL; 85842421Syokota } 85942421Syokota i = *(int *)arg; 86042421Syokota /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 86161004Sache if (state->ks_mode == K_XLATE && 86261004Sache 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; 920102412Scharnier /* FALLTHROUGH */ 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 108657131Syokota /* temporarily block data transmission from the keyboard */ 108757131Syokota write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 108857131Syokota 108942421Syokota /* flush any noise in the buffer */ 109057131Syokota empty_both_buffers(kbdc, 100); 109142421Syokota 109242421Syokota /* save the current keyboard controller command byte */ 109342421Syokota m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 109442421Syokota c = get_controller_command_byte(kbdc); 109542421Syokota if (c == -1) { 109642421Syokota /* CONTROLLER ERROR */ 109742421Syokota kbdc_set_device_mask(kbdc, m); 109842421Syokota kbdc_lock(kbdc, FALSE); 109942421Syokota return ENXIO; 110042421Syokota } 110142421Syokota 110242421Syokota /* 110342421Syokota * The keyboard may have been screwed up by the boot block. 110442421Syokota * We may just be able to recover from error by testing the controller 110542421Syokota * and the keyboard port. The controller command byte needs to be 110642421Syokota * saved before this recovery operation, as some controllers seem 110742421Syokota * to set the command byte to particular values. 110842421Syokota */ 110942421Syokota test_controller(kbdc); 111042421Syokota test_kbd_port(kbdc); 111142421Syokota 111242421Syokota err = get_kbd_echo(kbdc); 111357902Syokota 111457902Syokota /* 111557902Syokota * Even if the keyboard doesn't seem to be present (err != 0), 111657902Syokota * we shall enable the keyboard port and interrupt so that 111757902Syokota * the driver will be operable when the keyboard is attached 111857902Syokota * to the system later. It is NOT recommended to hot-plug 111957902Syokota * the AT keyboard, but many people do so... 112057902Syokota */ 112157902Syokota kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 112257902Syokota setup_kbd_port(kbdc, TRUE, TRUE); 112357902Syokota#if 0 112442421Syokota if (err == 0) { 112542421Syokota kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 112642421Syokota } else { 112757131Syokota /* try to restore the command byte as before */ 112857131Syokota set_controller_command_byte(kbdc, 0xff, c); 112942421Syokota kbdc_set_device_mask(kbdc, m); 113042421Syokota } 113157902Syokota#endif 113242421Syokota 113342421Syokota kbdc_lock(kbdc, FALSE); 113442421Syokota return err; 113542421Syokota} 113642421Syokota 113742421Syokotastatic int 113842421Syokotainit_keyboard(KBDC kbdc, int *type, int flags) 113942421Syokota{ 114042421Syokota int codeset; 114142421Syokota int id; 114242421Syokota int c; 114342421Syokota 114442421Syokota if (!kbdc_lock(kbdc, TRUE)) { 114542421Syokota /* driver error? */ 114642421Syokota return EIO; 114742421Syokota } 114842421Syokota 114957131Syokota /* temporarily block data transmission from the keyboard */ 115057131Syokota write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 115157131Syokota 115242421Syokota /* save the current controller command byte */ 115354382Syokota empty_both_buffers(kbdc, 200); 115442421Syokota c = get_controller_command_byte(kbdc); 115542421Syokota if (c == -1) { 115642421Syokota /* CONTROLLER ERROR */ 115742421Syokota kbdc_lock(kbdc, FALSE); 115842421Syokota printf("atkbd: unable to get the current command byte value.\n"); 115942421Syokota return EIO; 116042421Syokota } 116142421Syokota if (bootverbose) 116242421Syokota printf("atkbd: the current kbd controller command byte %04x\n", 116342421Syokota c); 116442421Syokota#if 0 116542421Syokota /* override the keyboard lock switch */ 116642421Syokota c |= KBD_OVERRIDE_KBD_LOCK; 116742421Syokota#endif 116842421Syokota 116942421Syokota /* enable the keyboard port, but disable the keyboard intr. */ 117042421Syokota if (setup_kbd_port(kbdc, TRUE, FALSE)) { 117142421Syokota /* CONTROLLER ERROR: there is very little we can do... */ 117242421Syokota printf("atkbd: unable to set the command byte.\n"); 117342421Syokota kbdc_lock(kbdc, FALSE); 117442421Syokota return EIO; 117542421Syokota } 117642421Syokota 117742421Syokota /* 117842421Syokota * Check if we have an XT keyboard before we attempt to reset it. 117942421Syokota * The procedure assumes that the keyboard and the controller have 118042421Syokota * been set up properly by BIOS and have not been messed up 118142421Syokota * during the boot process. 118242421Syokota */ 118342421Syokota codeset = -1; 118442421Syokota if (flags & KB_CONF_ALT_SCANCODESET) 118542421Syokota /* the user says there is a XT keyboard */ 118642421Syokota codeset = 1; 118742421Syokota#ifdef KBD_DETECT_XT_KEYBOARD 118842421Syokota else if ((c & KBD_TRANSLATION) == 0) { 118942421Syokota /* SET_SCANCODE_SET is not always supported; ignore error */ 119042421Syokota if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 119142421Syokota == KBD_ACK) 119242421Syokota codeset = read_kbd_data(kbdc); 119342421Syokota } 119442421Syokota if (bootverbose) 119542421Syokota printf("atkbd: scancode set %d\n", codeset); 119642421Syokota#endif /* KBD_DETECT_XT_KEYBOARD */ 119742421Syokota 119842421Syokota *type = KB_OTHER; 119942421Syokota id = get_kbd_id(kbdc); 120042421Syokota switch(id) { 120155730Syokota case 0x41ab: /* 101/102/... Enhanced */ 120255730Syokota case 0x83ab: /* ditto */ 120355730Syokota case 0x54ab: /* SpaceSaver */ 120455730Syokota case 0x84ab: /* ditto */ 120555730Syokota#if 0 120655730Syokota case 0x90ab: /* 'G' */ 120755730Syokota case 0x91ab: /* 'P' */ 120855730Syokota case 0x92ab: /* 'A' */ 120955730Syokota#endif 121042421Syokota *type = KB_101; 121142421Syokota break; 121242421Syokota case -1: /* AT 84 keyboard doesn't return ID */ 121342421Syokota *type = KB_84; 121442421Syokota break; 121542421Syokota default: 121642421Syokota break; 121742421Syokota } 121842421Syokota if (bootverbose) 121942421Syokota printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 122042421Syokota 122142421Syokota /* reset keyboard hardware */ 122242421Syokota if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 122342421Syokota /* 122442421Syokota * KEYBOARD ERROR 122542421Syokota * Keyboard reset may fail either because the keyboard 122642421Syokota * doen't exist, or because the keyboard doesn't pass 122742421Syokota * the self-test, or the keyboard controller on the 122842421Syokota * motherboard and the keyboard somehow fail to shake hands. 122942421Syokota * It is just possible, particularly in the last case, 1230110398Scharnier * that the keyboard controller may be left in a hung state. 123142421Syokota * test_controller() and test_kbd_port() appear to bring 123242421Syokota * the keyboard controller back (I don't know why and how, 123342421Syokota * though.) 123442421Syokota */ 123542421Syokota empty_both_buffers(kbdc, 10); 123642421Syokota test_controller(kbdc); 123742421Syokota test_kbd_port(kbdc); 123842421Syokota /* 123942421Syokota * We could disable the keyboard port and interrupt... but, 124042421Syokota * the keyboard may still exist (see above). 124142421Syokota */ 124242421Syokota set_controller_command_byte(kbdc, 0xff, c); 124342421Syokota kbdc_lock(kbdc, FALSE); 124442421Syokota if (bootverbose) 124542421Syokota printf("atkbd: failed to reset the keyboard.\n"); 124642421Syokota return EIO; 124742421Syokota } 124842421Syokota 124942421Syokota /* 125094275Sphk * Allow us to set the XT_KEYBD flag so that keyboards 125142421Syokota * such as those on the IBM ThinkPad laptop computers can be used 125242421Syokota * with the standard console driver. 125342421Syokota */ 125442421Syokota if (codeset == 1) { 125542421Syokota if (send_kbd_command_and_data(kbdc, 125642421Syokota KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 125742421Syokota /* XT kbd doesn't need scan code translation */ 125842421Syokota c &= ~KBD_TRANSLATION; 125942421Syokota } else { 126042421Syokota /* 126142421Syokota * KEYBOARD ERROR 126242421Syokota * The XT kbd isn't usable unless the proper scan 126342421Syokota * code set is selected. 126442421Syokota */ 126542421Syokota set_controller_command_byte(kbdc, 0xff, c); 126642421Syokota kbdc_lock(kbdc, FALSE); 126742421Syokota printf("atkbd: unable to set the XT keyboard mode.\n"); 126842421Syokota return EIO; 126942421Syokota } 127042421Syokota } 127142421Syokota 127242831Syokota#ifdef __alpha__ 127342831Syokota if (send_kbd_command_and_data( 127442831Syokota kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 127542831Syokota printf("atkbd: can't set translation.\n"); 127642831Syokota 127742831Syokota } 127842831Syokota c |= KBD_TRANSLATION; 127942831Syokota#endif 128042831Syokota 128142421Syokota /* enable the keyboard port and intr. */ 128242421Syokota if (!set_controller_command_byte(kbdc, 128342421Syokota KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 128442421Syokota (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 128542421Syokota | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 128642421Syokota /* 128742421Syokota * CONTROLLER ERROR 128842421Syokota * This is serious; we are left with the disabled 128942421Syokota * keyboard intr. 129042421Syokota */ 129142421Syokota set_controller_command_byte(kbdc, 0xff, c); 129242421Syokota kbdc_lock(kbdc, FALSE); 129342421Syokota printf("atkbd: unable to enable the keyboard port and intr.\n"); 129442421Syokota return EIO; 129542421Syokota } 129642421Syokota 129742421Syokota kbdc_lock(kbdc, FALSE); 129842421Syokota return 0; 129942421Syokota} 130042421Syokota 130142421Syokotastatic int 130242421Syokotawrite_kbd(KBDC kbdc, int command, int data) 130342421Syokota{ 130442421Syokota int s; 130542421Syokota 130642421Syokota /* prevent the timeout routine from polling the keyboard */ 130742421Syokota if (!kbdc_lock(kbdc, TRUE)) 130842421Syokota return EBUSY; 130942421Syokota 131042421Syokota /* disable the keyboard and mouse interrupt */ 131142421Syokota s = spltty(); 131242421Syokota#if 0 131342421Syokota c = get_controller_command_byte(kbdc); 131442421Syokota if ((c == -1) 131542421Syokota || !set_controller_command_byte(kbdc, 131642421Syokota kbdc_get_device_mask(kbdc), 131742421Syokota KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 131842421Syokota | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 131942421Syokota /* CONTROLLER ERROR */ 132042421Syokota kbdc_lock(kbdc, FALSE); 132142421Syokota splx(s); 132242421Syokota return EIO; 132342421Syokota } 132442421Syokota /* 132542421Syokota * Now that the keyboard controller is told not to generate 132642421Syokota * the keyboard and mouse interrupts, call `splx()' to allow 132742421Syokota * the other tty interrupts. The clock interrupt may also occur, 132842421Syokota * but the timeout routine (`scrn_timer()') will be blocked 132942421Syokota * by the lock flag set via `kbdc_lock()' 133042421Syokota */ 133142421Syokota splx(s); 133242421Syokota#endif 133342421Syokota 133442421Syokota if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 133542421Syokota send_kbd_command(kbdc, KBDC_ENABLE_KBD); 133642421Syokota 133742421Syokota#if 0 133842421Syokota /* restore the interrupts */ 133942421Syokota if (!set_controller_command_byte(kbdc, 134042421Syokota kbdc_get_device_mask(kbdc), 134142421Syokota c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 134242421Syokota /* CONTROLLER ERROR */ 134342421Syokota } 134442421Syokota#else 134542421Syokota splx(s); 134642421Syokota#endif 134742421Syokota kbdc_lock(kbdc, FALSE); 134842421Syokota 134942421Syokota return 0; 135042421Syokota} 135142421Syokota 135242421Syokotastatic int 135342421Syokotaget_kbd_id(KBDC kbdc) 135442421Syokota{ 135542421Syokota int id1, id2; 135642421Syokota 135742421Syokota empty_both_buffers(kbdc, 10); 135842421Syokota id1 = id2 = -1; 135942421Syokota if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 136042421Syokota return -1; 136142421Syokota 136242421Syokota DELAY(10000); /* 10 msec delay */ 136342421Syokota id1 = read_kbd_data(kbdc); 136442421Syokota if (id1 != -1) 136542421Syokota id2 = read_kbd_data(kbdc); 136642421Syokota 136742421Syokota if ((id1 == -1) || (id2 == -1)) { 136842421Syokota empty_both_buffers(kbdc, 10); 136942421Syokota test_controller(kbdc); 137042421Syokota test_kbd_port(kbdc); 137142421Syokota return -1; 137242421Syokota } 137342421Syokota return ((id2 << 8) | id1); 137442421Syokota} 137542421Syokota 137654543Syokotastatic int delays[] = { 250, 500, 750, 1000 }; 137754543Syokotastatic int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 137854543Syokota 68, 76, 84, 92, 100, 110, 118, 126, 137954543Syokota 136, 152, 168, 184, 200, 220, 236, 252, 138054543Syokota 272, 304, 336, 368, 400, 440, 472, 504 }; 138154543Syokota 138244628Syokotastatic int 138354543Syokotatypematic_delay(int i) 138454543Syokota{ 138554543Syokota return delays[(i >> 5) & 3]; 138654543Syokota} 138754543Syokota 138854543Syokotastatic int 138954543Syokotatypematic_rate(int i) 139054543Syokota{ 139154543Syokota return rates[i & 0x1f]; 139254543Syokota} 139354543Syokota 139454543Syokotastatic int 139544628Syokotatypematic(int delay, int rate) 139644628Syokota{ 139744628Syokota int value; 139844628Syokota int i; 139944628Syokota 140044628Syokota for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 140144628Syokota if (delay >= delays[i]) 140244628Syokota break; 140344628Syokota } 140444628Syokota value = i << 5; 140544628Syokota for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 140644628Syokota if (rate >= rates[i]) 140744628Syokota break; 140844628Syokota } 140944628Syokota value |= i; 141044628Syokota return value; 141144628Syokota} 1412