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authorGreg Kroah-Hartman <gregkh@suse.de>2010-11-04 12:50:47 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-11-05 08:16:52 -0700
commit60d4ae8d436b8be6a8aedb63440203d5395e9f53 (patch)
tree2e0798d278100518634b999dc6705e9f02027d9f /drivers/char/keyboard.c
parent96fd7ce58ffb5c7bf376796b5525ba3ea1c9d69f (diff)
TTY: create drivers/tty/vt and move the vt code there
The vt and other related code is moved into the drivers/tty/vt directory. Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char/keyboard.c')
-rw-r--r--drivers/char/keyboard.c1454
1 files changed, 0 insertions, 1454 deletions
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
deleted file mode 100644
index e95d7876ca6b..000000000000
--- a/drivers/char/keyboard.c
+++ /dev/null
@@ -1,1454 +0,0 @@
-/*
- * linux/drivers/char/keyboard.c
- *
- * Written for linux by Johan Myreen as a translation from
- * the assembly version by Linus (with diacriticals added)
- *
- * Some additional features added by Christoph Niemann (ChN), March 1993
- *
- * Loadable keymaps by Risto Kankkunen, May 1993
- *
- * Diacriticals redone & other small changes, aeb@cwi.nl, June 1993
- * Added decr/incr_console, dynamic keymaps, Unicode support,
- * dynamic function/string keys, led setting, Sept 1994
- * `Sticky' modifier keys, 951006.
- *
- * 11-11-96: SAK should now work in the raw mode (Martin Mares)
- *
- * Modified to provide 'generic' keyboard support by Hamish Macdonald
- * Merge with the m68k keyboard driver and split-off of the PC low-level
- * parts by Geert Uytterhoeven, May 1997
- *
- * 27-05-97: Added support for the Magic SysRq Key (Martin Mares)
- * 30-07-98: Dead keys redone, aeb@cwi.nl.
- * 21-08-02: Converted to input API, major cleanup. (Vojtech Pavlik)
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/consolemap.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/irq.h>
-
-#include <linux/kbd_kern.h>
-#include <linux/kbd_diacr.h>
-#include <linux/vt_kern.h>
-#include <linux/input.h>
-#include <linux/reboot.h>
-#include <linux/notifier.h>
-#include <linux/jiffies.h>
-
-extern void ctrl_alt_del(void);
-
-/*
- * Exported functions/variables
- */
-
-#define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META))
-
-/*
- * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on.
- * This seems a good reason to start with NumLock off. On HIL keyboards
- * of PARISC machines however there is no NumLock key and everyone expects the keypad
- * to be used for numbers.
- */
-
-#if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD))
-#define KBD_DEFLEDS (1 << VC_NUMLOCK)
-#else
-#define KBD_DEFLEDS 0
-#endif
-
-#define KBD_DEFLOCK 0
-
-void compute_shiftstate(void);
-
-/*
- * Handler Tables.
- */
-
-#define K_HANDLERS\
- k_self, k_fn, k_spec, k_pad,\
- k_dead, k_cons, k_cur, k_shift,\
- k_meta, k_ascii, k_lock, k_lowercase,\
- k_slock, k_dead2, k_brl, k_ignore
-
-typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value,
- char up_flag);
-static k_handler_fn K_HANDLERS;
-static k_handler_fn *k_handler[16] = { K_HANDLERS };
-
-#define FN_HANDLERS\
- fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\
- fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\
- fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\
- fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\
- fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num
-
-typedef void (fn_handler_fn)(struct vc_data *vc);
-static fn_handler_fn FN_HANDLERS;
-static fn_handler_fn *fn_handler[] = { FN_HANDLERS };
-
-/*
- * Variables exported for vt_ioctl.c
- */
-
-/* maximum values each key_handler can handle */
-const int max_vals[] = {
- 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1,
- NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1,
- 255, NR_LOCK - 1, 255, NR_BRL - 1
-};
-
-const int NR_TYPES = ARRAY_SIZE(max_vals);
-
-struct kbd_struct kbd_table[MAX_NR_CONSOLES];
-EXPORT_SYMBOL_GPL(kbd_table);
-static struct kbd_struct *kbd = kbd_table;
-
-struct vt_spawn_console vt_spawn_con = {
- .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock),
- .pid = NULL,
- .sig = 0,
-};
-
-/*
- * Variables exported for vt.c
- */
-
-int shift_state = 0;
-
-/*
- * Internal Data.
- */
-
-static struct input_handler kbd_handler;
-static DEFINE_SPINLOCK(kbd_event_lock);
-static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */
-static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */
-static bool dead_key_next;
-static int npadch = -1; /* -1 or number assembled on pad */
-static unsigned int diacr;
-static char rep; /* flag telling character repeat */
-
-static unsigned char ledstate = 0xff; /* undefined */
-static unsigned char ledioctl;
-
-static struct ledptr {
- unsigned int *addr;
- unsigned int mask;
- unsigned char valid:1;
-} ledptrs[3];
-
-/*
- * Notifier list for console keyboard events
- */
-static ATOMIC_NOTIFIER_HEAD(keyboard_notifier_list);
-
-int register_keyboard_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_register(&keyboard_notifier_list, nb);
-}
-EXPORT_SYMBOL_GPL(register_keyboard_notifier);
-
-int unregister_keyboard_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_unregister(&keyboard_notifier_list, nb);
-}
-EXPORT_SYMBOL_GPL(unregister_keyboard_notifier);
-
-/*
- * Translation of scancodes to keycodes. We set them on only the first
- * keyboard in the list that accepts the scancode and keycode.
- * Explanation for not choosing the first attached keyboard anymore:
- * USB keyboards for example have two event devices: one for all "normal"
- * keys and one for extra function keys (like "volume up", "make coffee",
- * etc.). So this means that scancodes for the extra function keys won't
- * be valid for the first event device, but will be for the second.
- */
-
-struct getset_keycode_data {
- struct input_keymap_entry ke;
- int error;
-};
-
-static int getkeycode_helper(struct input_handle *handle, void *data)
-{
- struct getset_keycode_data *d = data;
-
- d->error = input_get_keycode(handle->dev, &d->ke);
-
- return d->error == 0; /* stop as soon as we successfully get one */
-}
-
-int getkeycode(unsigned int scancode)
-{
- struct getset_keycode_data d = {
- .ke = {
- .flags = 0,
- .len = sizeof(scancode),
- .keycode = 0,
- },
- .error = -ENODEV,
- };
-
- memcpy(d.ke.scancode, &scancode, sizeof(scancode));
-
- input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper);
-
- return d.error ?: d.ke.keycode;
-}
-
-static int setkeycode_helper(struct input_handle *handle, void *data)
-{
- struct getset_keycode_data *d = data;
-
- d->error = input_set_keycode(handle->dev, &d->ke);
-
- return d->error == 0; /* stop as soon as we successfully set one */
-}
-
-int setkeycode(unsigned int scancode, unsigned int keycode)
-{
- struct getset_keycode_data d = {
- .ke = {
- .flags = 0,
- .len = sizeof(scancode),
- .keycode = keycode,
- },
- .error = -ENODEV,
- };
-
- memcpy(d.ke.scancode, &scancode, sizeof(scancode));
-
- input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper);
-
- return d.error;
-}
-
-/*
- * Making beeps and bells. Note that we prefer beeps to bells, but when
- * shutting the sound off we do both.
- */
-
-static int kd_sound_helper(struct input_handle *handle, void *data)
-{
- unsigned int *hz = data;
- struct input_dev *dev = handle->dev;
-
- if (test_bit(EV_SND, dev->evbit)) {
- if (test_bit(SND_TONE, dev->sndbit)) {
- input_inject_event(handle, EV_SND, SND_TONE, *hz);
- if (*hz)
- return 0;
- }
- if (test_bit(SND_BELL, dev->sndbit))
- input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0);
- }
-
- return 0;
-}
-
-static void kd_nosound(unsigned long ignored)
-{
- static unsigned int zero;
-
- input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper);
-}
-
-static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0);
-
-void kd_mksound(unsigned int hz, unsigned int ticks)
-{
- del_timer_sync(&kd_mksound_timer);
-
- input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper);
-
- if (hz && ticks)
- mod_timer(&kd_mksound_timer, jiffies + ticks);
-}
-EXPORT_SYMBOL(kd_mksound);
-
-/*
- * Setting the keyboard rate.
- */
-
-static int kbd_rate_helper(struct input_handle *handle, void *data)
-{
- struct input_dev *dev = handle->dev;
- struct kbd_repeat *rep = data;
-
- if (test_bit(EV_REP, dev->evbit)) {
-
- if (rep[0].delay > 0)
- input_inject_event(handle,
- EV_REP, REP_DELAY, rep[0].delay);
- if (rep[0].period > 0)
- input_inject_event(handle,
- EV_REP, REP_PERIOD, rep[0].period);
-
- rep[1].delay = dev->rep[REP_DELAY];
- rep[1].period = dev->rep[REP_PERIOD];
- }
-
- return 0;
-}
-
-int kbd_rate(struct kbd_repeat *rep)
-{
- struct kbd_repeat data[2] = { *rep };
-
- input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper);
- *rep = data[1]; /* Copy currently used settings */
-
- return 0;
-}
-
-/*
- * Helper Functions.
- */
-static void put_queue(struct vc_data *vc, int ch)
-{
- struct tty_struct *tty = vc->port.tty;
-
- if (tty) {
- tty_insert_flip_char(tty, ch, 0);
- con_schedule_flip(tty);
- }
-}
-
-static void puts_queue(struct vc_data *vc, char *cp)
-{
- struct tty_struct *tty = vc->port.tty;
-
- if (!tty)
- return;
-
- while (*cp) {
- tty_insert_flip_char(tty, *cp, 0);
- cp++;
- }
- con_schedule_flip(tty);
-}
-
-static void applkey(struct vc_data *vc, int key, char mode)
-{
- static char buf[] = { 0x1b, 'O', 0x00, 0x00 };
-
- buf[1] = (mode ? 'O' : '[');
- buf[2] = key;
- puts_queue(vc, buf);
-}
-
-/*
- * Many other routines do put_queue, but I think either
- * they produce ASCII, or they produce some user-assigned
- * string, and in both cases we might assume that it is
- * in utf-8 already.
- */
-static void to_utf8(struct vc_data *vc, uint c)
-{
- if (c < 0x80)
- /* 0******* */
- put_queue(vc, c);
- else if (c < 0x800) {
- /* 110***** 10****** */
- put_queue(vc, 0xc0 | (c >> 6));
- put_queue(vc, 0x80 | (c & 0x3f));
- } else if (c < 0x10000) {
- if (c >= 0xD800 && c < 0xE000)
- return;
- if (c == 0xFFFF)
- return;
- /* 1110**** 10****** 10****** */
- put_queue(vc, 0xe0 | (c >> 12));
- put_queue(vc, 0x80 | ((c >> 6) & 0x3f));
- put_queue(vc, 0x80 | (c & 0x3f));
- } else if (c < 0x110000) {
- /* 11110*** 10****** 10****** 10****** */
- put_queue(vc, 0xf0 | (c >> 18));
- put_queue(vc, 0x80 | ((c >> 12) & 0x3f));
- put_queue(vc, 0x80 | ((c >> 6) & 0x3f));
- put_queue(vc, 0x80 | (c & 0x3f));
- }
-}
-
-/*
- * Called after returning from RAW mode or when changing consoles - recompute
- * shift_down[] and shift_state from key_down[] maybe called when keymap is
- * undefined, so that shiftkey release is seen
- */
-void compute_shiftstate(void)
-{
- unsigned int i, j, k, sym, val;
-
- shift_state = 0;
- memset(shift_down, 0, sizeof(shift_down));
-
- for (i = 0; i < ARRAY_SIZE(key_down); i++) {
-
- if (!key_down[i])
- continue;
-
- k = i * BITS_PER_LONG;
-
- for (j = 0; j < BITS_PER_LONG; j++, k++) {
-
- if (!test_bit(k, key_down))
- continue;
-
- sym = U(key_maps[0][k]);
- if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
- continue;
-
- val = KVAL(sym);
- if (val == KVAL(K_CAPSSHIFT))
- val = KVAL(K_SHIFT);
-
- shift_down[val]++;
- shift_state |= (1 << val);
- }
- }
-}
-
-/*
- * We have a combining character DIACR here, followed by the character CH.
- * If the combination occurs in the table, return the corresponding value.
- * Otherwise, if CH is a space or equals DIACR, return DIACR.
- * Otherwise, conclude that DIACR was not combining after all,
- * queue it and return CH.
- */
-static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch)
-{
- unsigned int d = diacr;
- unsigned int i;
-
- diacr = 0;
-
- if ((d & ~0xff) == BRL_UC_ROW) {
- if ((ch & ~0xff) == BRL_UC_ROW)
- return d | ch;
- } else {
- for (i = 0; i < accent_table_size; i++)
- if (accent_table[i].diacr == d && accent_table[i].base == ch)
- return accent_table[i].result;
- }
-
- if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d)
- return d;
-
- if (kbd->kbdmode == VC_UNICODE)
- to_utf8(vc, d);
- else {
- int c = conv_uni_to_8bit(d);
- if (c != -1)
- put_queue(vc, c);
- }
-
- return ch;
-}
-
-/*
- * Special function handlers
- */
-static void fn_enter(struct vc_data *vc)
-{
- if (diacr) {
- if (kbd->kbdmode == VC_UNICODE)
- to_utf8(vc, diacr);
- else {
- int c = conv_uni_to_8bit(diacr);
- if (c != -1)
- put_queue(vc, c);
- }
- diacr = 0;
- }
-
- put_queue(vc, 13);
- if (vc_kbd_mode(kbd, VC_CRLF))
- put_queue(vc, 10);
-}
-
-static void fn_caps_toggle(struct vc_data *vc)
-{
- if (rep)
- return;
-
- chg_vc_kbd_led(kbd, VC_CAPSLOCK);
-}
-
-static void fn_caps_on(struct vc_data *vc)
-{
- if (rep)
- return;
-
- set_vc_kbd_led(kbd, VC_CAPSLOCK);
-}
-
-static void fn_show_ptregs(struct vc_data *vc)
-{
- struct pt_regs *regs = get_irq_regs();
-
- if (regs)
- show_regs(regs);
-}
-
-static void fn_hold(struct vc_data *vc)
-{
- struct tty_struct *tty = vc->port.tty;
-
- if (rep || !tty)
- return;
-
- /*
- * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty);
- * these routines are also activated by ^S/^Q.
- * (And SCROLLOCK can also be set by the ioctl KDSKBLED.)
- */
- if (tty->stopped)
- start_tty(tty);
- else
- stop_tty(tty);
-}
-
-static void fn_num(struct vc_data *vc)
-{
- if (vc_kbd_mode(kbd, VC_APPLIC))
- applkey(vc, 'P', 1);
- else
- fn_bare_num(vc);
-}
-
-/*
- * Bind this to Shift-NumLock if you work in application keypad mode
- * but want to be able to change the NumLock flag.
- * Bind this to NumLock if you prefer that the NumLock key always
- * changes the NumLock flag.
- */
-static void fn_bare_num(struct vc_data *vc)
-{
- if (!rep)
- chg_vc_kbd_led(kbd, VC_NUMLOCK);
-}
-
-static void fn_lastcons(struct vc_data *vc)
-{
- /* switch to the last used console, ChN */
- set_console(last_console);
-}
-
-static void fn_dec_console(struct vc_data *vc)
-{
- int i, cur = fg_console;
-
- /* Currently switching? Queue this next switch relative to that. */
- if (want_console != -1)
- cur = want_console;
-
- for (i = cur - 1; i != cur; i--) {
- if (i == -1)
- i = MAX_NR_CONSOLES - 1;
- if (vc_cons_allocated(i))
- break;
- }
- set_console(i);
-}
-
-static void fn_inc_console(struct vc_data *vc)
-{
- int i, cur = fg_console;
-
- /* Currently switching? Queue this next switch relative to that. */
- if (want_console != -1)
- cur = want_console;
-
- for (i = cur+1; i != cur; i++) {
- if (i == MAX_NR_CONSOLES)
- i = 0;
- if (vc_cons_allocated(i))
- break;
- }
- set_console(i);
-}
-
-static void fn_send_intr(struct vc_data *vc)
-{
- struct tty_struct *tty = vc->port.tty;
-
- if (!tty)
- return;
- tty_insert_flip_char(tty, 0, TTY_BREAK);
- con_schedule_flip(tty);
-}
-
-static void fn_scroll_forw(struct vc_data *vc)
-{
- scrollfront(vc, 0);
-}
-
-static void fn_scroll_back(struct vc_data *vc)
-{
- scrollback(vc, 0);
-}
-
-static void fn_show_mem(struct vc_data *vc)
-{
- show_mem();
-}
-
-static void fn_show_state(struct vc_data *vc)
-{
- show_state();
-}
-
-static void fn_boot_it(struct vc_data *vc)
-{
- ctrl_alt_del();
-}
-
-static void fn_compose(struct vc_data *vc)
-{
- dead_key_next = true;
-}
-
-static void fn_spawn_con(struct vc_data *vc)
-{
- spin_lock(&vt_spawn_con.lock);
- if (vt_spawn_con.pid)
- if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) {
- put_pid(vt_spawn_con.pid);
- vt_spawn_con.pid = NULL;
- }
- spin_unlock(&vt_spawn_con.lock);
-}
-
-static void fn_SAK(struct vc_data *vc)
-{
- struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work;
- schedule_work(SAK_work);
-}
-
-static void fn_null(struct vc_data *vc)
-{
- compute_shiftstate();
-}
-
-/*
- * Special key handlers
- */
-static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag)
-{
-}
-
-static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
-{
- if (up_flag)
- return;
- if (value >= ARRAY_SIZE(fn_handler))
- return;
- if ((kbd->kbdmode == VC_RAW ||
- kbd->kbdmode == VC_MEDIUMRAW) &&
- value != KVAL(K_SAK))
- return; /* SAK is allowed even in raw mode */
- fn_handler[value](vc);
-}
-
-static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag)
-{
- pr_err("k_lowercase was called - impossible\n");
-}
-
-static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag)
-{
- if (up_flag)
- return; /* no action, if this is a key release */
-
- if (diacr)
- value = handle_diacr(vc, value);
-
- if (dead_key_next) {
- dead_key_next = false;
- diacr = value;
- return;
- }
- if (kbd->kbdmode == VC_UNICODE)
- to_utf8(vc, value);
- else {
- int c = conv_uni_to_8bit(value);
- if (c != -1)
- put_queue(vc, c);
- }
-}
-
-/*
- * Handle dead key. Note that we now may have several
- * dead keys modifying the same character. Very useful
- * for Vietnamese.
- */
-static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag)
-{
- if (up_flag)
- return;
-
- diacr = (diacr ? handle_diacr(vc, value) : value);
-}
-
-static void k_self(struct vc_data *vc, unsigned char value, char up_flag)
-{
- k_unicode(vc, conv_8bit_to_uni(value), up_flag);
-}
-
-static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag)
-{
- k_deadunicode(vc, value, up_flag);
-}
-
-/*
- * Obsolete - for backwards compatibility only
- */
-static void k_dead(struct vc_data *vc, unsigned char value, char up_flag)
-{
- static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' };
-
- k_deadunicode(vc, ret_diacr[value], up_flag);
-}
-
-static void k_cons(struct vc_data *vc, unsigned char value, char up_flag)
-{
- if (up_flag)
- return;
-
- set_console(value);
-}
-
-static void k_fn(struct vc_data *vc, unsigned char value, char up_flag)
-{
- if (up_flag)
- return;
-
- if ((unsigned)value < ARRAY_SIZE(func_table)) {
- if (func_table[value])
- puts_queue(vc, func_table[value]);
- } else
- pr_err("k_fn called with value=%d\n", value);
-}
-
-static void k_cur(struct vc_data *vc, unsigned char value, char up_flag)
-{
- static const char cur_chars[] = "BDCA";
-
- if (up_flag)
- return;
-
- applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE));
-}
-
-static void k_pad(struct vc_data *vc, unsigned char value, char up_flag)
-{
- static const char pad_chars[] = "0123456789+-*/\015,.?()#";
- static const char app_map[] = "pqrstuvwxylSRQMnnmPQS";
-
- if (up_flag)
- return; /* no action, if this is a key release */
-
- /* kludge... shift forces cursor/number keys */
- if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) {
- applkey(vc, app_map[value], 1);
- return;
- }
-
- if (!vc_kbd_led(kbd, VC_NUMLOCK)) {
-
- switch (value) {
- case KVAL(K_PCOMMA):
- case KVAL(K_PDOT):
- k_fn(vc, KVAL(K_REMOVE), 0);
- return;
- case KVAL(K_P0):
- k_fn(vc, KVAL(K_INSERT), 0);
- return;
- case KVAL(K_P1):
- k_fn(vc, KVAL(K_SELECT), 0);
- return;
- case KVAL(K_P2):
- k_cur(vc, KVAL(K_DOWN), 0);
- return;
- case KVAL(K_P3):
- k_fn(vc, KVAL(K_PGDN), 0);
- return;
- case KVAL(K_P4):
- k_cur(vc, KVAL(K_LEFT), 0);
- return;
- case KVAL(K_P6):
- k_cur(vc, KVAL(K_RIGHT), 0);
- return;
- case KVAL(K_P7):
- k_fn(vc, KVAL(K_FIND), 0);
- return;
- case KVAL(K_P8):
- k_cur(vc, KVAL(K_UP), 0);
- return;
- case KVAL(K_P9):
- k_fn(vc, KVAL(K_PGUP), 0);
- return;
- case KVAL(K_P5):
- applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC));
- return;
- }
- }
-
- put_queue(vc, pad_chars[value]);
- if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF))
- put_queue(vc, 10);
-}
-
-static void k_shift(struct vc_data *vc, unsigned char value, char up_flag)
-{
- int old_state = shift_state;
-
- if (rep)
- return;
- /*
- * Mimic typewriter:
- * a CapsShift key acts like Shift but undoes CapsLock
- */
- if (value == KVAL(K_CAPSSHIFT)) {
- value = KVAL(K_SHIFT);
- if (!up_flag)
- clr_vc_kbd_led(kbd, VC_CAPSLOCK);
- }
-
- if (up_flag) {
- /*
- * handle the case that two shift or control
- * keys are depressed simultaneously
- */
- if (shift_down[value])
- shift_down[value]--;
- } else
- shift_down[value]++;
-
- if (shift_down[value])
- shift_state |= (1 << value);
- else
- shift_state &= ~(1 << value);
-
- /* kludge */
- if (up_flag && shift_state != old_state && npadch != -1) {
- if (kbd->kbdmode == VC_UNICODE)
- to_utf8(vc, npadch);
- else
- put_queue(vc, npadch & 0xff);
- npadch = -1;
- }
-}
-
-static void k_meta(struct vc_data *vc, unsigned char value, char up_flag)
-{
- if (up_flag)
- return;
-
- if (vc_kbd_mode(kbd, VC_META)) {
- put_queue(vc, '\033');
- put_queue(vc, value);
- } else
- put_queue(vc, value | 0x80);
-}
-
-static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag)
-{
- int base;
-
- if (up_flag)
- return;
-
- if (value < 10) {
- /* decimal input of code, while Alt depressed */
- base = 10;
- } else {
- /* hexadecimal input of code, while AltGr depressed */
- value -= 10;
- base = 16;
- }
-
- if (npadch == -1)
- npadch = value;
- else
- npadch = npadch * base + value;
-}
-
-static void k_lock(struct vc_data *vc, unsigned char value, char up_flag)
-{
- if (up_flag || rep)
- return;
-
- chg_vc_kbd_lock(kbd, value);
-}
-
-static void k_slock(struct vc_data *vc, unsigned char value, char up_flag)
-{
- k_shift(vc, value, up_flag);
- if (up_flag || rep)
- return;
-
- chg_vc_kbd_slock(kbd, value);
- /* try to make Alt, oops, AltGr and such work */
- if (!key_maps[kbd->lockstate ^ kbd->slockstate]) {
- kbd->slockstate = 0;
- chg_vc_kbd_slock(kbd, value);
- }
-}
-
-/* by default, 300ms interval for combination release */
-static unsigned brl_timeout = 300;
-MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)");
-module_param(brl_timeout, uint, 0644);
-
-static unsigned brl_nbchords = 1;
-MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)");
-module_param(brl_nbchords, uint, 0644);
-
-static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag)
-{
- static unsigned long chords;
- static unsigned committed;
-
- if (!brl_nbchords)
- k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag);
- else {
- committed |= pattern;
- chords++;
- if (chords == brl_nbchords) {
- k_unicode(vc, BRL_UC_ROW | committed, up_flag);
- chords = 0;
- committed = 0;
- }
- }
-}
-
-static void k_brl(struct vc_data *vc, unsigned char value, char up_flag)
-{
- static unsigned pressed, committing;
- static unsigned long releasestart;
-
- if (kbd->kbdmode != VC_UNICODE) {
- if (!up_flag)
- pr_warning("keyboard mode must be unicode for braille patterns\n");
- return;
- }
-
- if (!value) {
- k_unicode(vc, BRL_UC_ROW, up_flag);
- return;
- }
-
- if (value > 8)
- return;
-
- if (!up_flag) {
- pressed |= 1 << (value - 1);
- if (!brl_timeout)
- committing = pressed;
- } else if (brl_timeout) {
- if (!committing ||
- time_after(jiffies,
- releasestart + msecs_to_jiffies(brl_timeout))) {
- committing = pressed;
- releasestart = jiffies;
- }
- pressed &= ~(1 << (value - 1));
- if (!pressed && committing) {
- k_brlcommit(vc, committing, 0);
- committing = 0;
- }
- } else {
- if (committing) {
- k_brlcommit(vc, committing, 0);
- committing = 0;
- }
- pressed &= ~(1 << (value - 1));
- }
-}
-
-/*
- * The leds display either (i) the status of NumLock, CapsLock, ScrollLock,
- * or (ii) whatever pattern of lights people want to show using KDSETLED,
- * or (iii) specified bits of specified words in kernel memory.
- */
-unsigned char getledstate(void)
-{
- return ledstate;
-}
-
-void setledstate(struct kbd_struct *kbd, unsigned int led)
-{
- if (!(led & ~7)) {
- ledioctl = led;
- kbd->ledmode = LED_SHOW_IOCTL;
- } else
- kbd->ledmode = LED_SHOW_FLAGS;
-
- set_leds();
-}
-
-static inline unsigned char getleds(void)
-{
- struct kbd_struct *kbd = kbd_table + fg_console;
- unsigned char leds;
- int i;
-
- if (kbd->ledmode == LED_SHOW_IOCTL)
- return ledioctl;
-
- leds = kbd->ledflagstate;
-
- if (kbd->ledmode == LED_SHOW_MEM) {
- for (i = 0; i < 3; i++)
- if (ledptrs[i].valid) {
- if (*ledptrs[i].addr & ledptrs[i].mask)
- leds |= (1 << i);
- else
- leds &= ~(1 << i);
- }
- }
- return leds;
-}
-
-static int kbd_update_leds_helper(struct input_handle *handle, void *data)
-{
- unsigned char leds = *(unsigned char *)data;
-
- if (test_bit(EV_LED, handle->dev->evbit)) {
- input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
- input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02));
- input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04));
- input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
- }
-
- return 0;
-}
-
-/*
- * This is the tasklet that updates LED state on all keyboards
- * attached to the box. The reason we use tasklet is that we
- * need to handle the scenario when keyboard handler is not
- * registered yet but we already getting updates form VT to
- * update led state.
- */
-static void kbd_bh(unsigned long dummy)
-{
- unsigned char leds = getleds();
-
- if (leds != ledstate) {
- input_handler_for_each_handle(&kbd_handler, &leds,
- kbd_update_leds_helper);
- ledstate = leds;
- }
-}
-
-DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
-
-#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
- defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
- defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
- (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\
- defined(CONFIG_AVR32)
-
-#define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\
- ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001))
-
-static const unsigned short x86_keycodes[256] =
- { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
- 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
- 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
- 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
- 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
- 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92,
- 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339,
- 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349,
- 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355,
- 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361,
- 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114,
- 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116,
- 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307,
- 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330,
- 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 };
-
-#ifdef CONFIG_SPARC
-static int sparc_l1_a_state;
-extern void sun_do_break(void);
-#endif
-
-static int emulate_raw(struct vc_data *vc, unsigned int keycode,
- unsigned char up_flag)
-{
- int code;
-
- switch (keycode) {
-
- case KEY_PAUSE:
- put_queue(vc, 0xe1);
- put_queue(vc, 0x1d | up_flag);
- put_queue(vc, 0x45 | up_flag);
- break;
-
- case KEY_HANGEUL:
- if (!up_flag)
- put_queue(vc, 0xf2);
- break;
-
- case KEY_HANJA:
- if (!up_flag)
- put_queue(vc, 0xf1);
- break;
-
- case KEY_SYSRQ:
- /*
- * Real AT keyboards (that's what we're trying
- * to emulate here emit 0xe0 0x2a 0xe0 0x37 when
- * pressing PrtSc/SysRq alone, but simply 0x54
- * when pressing Alt+PrtSc/SysRq.
- */
- if (test_bit(KEY_LEFTALT, key_down) ||
- test_bit(KEY_RIGHTALT, key_down)) {
- put_queue(vc, 0x54 | up_flag);
- } else {
- put_queue(vc, 0xe0);
- put_queue(vc, 0x2a | up_flag);
- put_queue(vc, 0xe0);
- put_queue(vc, 0x37 | up_flag);
- }
- break;
-
- default:
- if (keycode > 255)
- return -1;
-
- code = x86_keycodes[keycode];
- if (!code)
- return -1;
-
- if (code & 0x100)
- put_queue(vc, 0xe0);
- put_queue(vc, (code & 0x7f) | up_flag);
-
- break;
- }
-
- return 0;
-}
-
-#else
-
-#define HW_RAW(dev) 0
-
-static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag)
-{
- if (keycode > 127)
- return -1;
-
- put_queue(vc, keycode | up_flag);
- return 0;
-}
-#endif
-
-static void kbd_rawcode(unsigned char data)
-{
- struct vc_data *vc = vc_cons[fg_console].d;
-
- kbd = kbd_table + vc->vc_num;
- if (kbd->kbdmode == VC_RAW)
- put_queue(vc, data);
-}
-
-static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
-{
- struct vc_data *vc = vc_cons[fg_console].d;
- unsigned short keysym, *key_map;
- unsigned char type;
- bool raw_mode;
- struct tty_struct *tty;
- int shift_final;
- struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down };
- int rc;
-
- tty = vc->port.tty;
-
- if (tty && (!tty->driver_data)) {
- /* No driver data? Strange. Okay we fix it then. */
- tty->driver_data = vc;
- }
-
- kbd = kbd_table + vc->vc_num;
-
-#ifdef CONFIG_SPARC
- if (keycode == KEY_STOP)
- sparc_l1_a_state = down;
-#endif
-
- rep = (down == 2);
-
- raw_mode = (kbd->kbdmode == VC_RAW);
- if (raw_mode && !hw_raw)
- if (emulate_raw(vc, keycode, !down << 7))
- if (keycode < BTN_MISC && printk_ratelimit())
- pr_warning("can't emulate rawmode for keycode %d\n",
- keycode);
-
-#ifdef CONFIG_SPARC
- if (keycode == KEY_A && sparc_l1_a_state) {
- sparc_l1_a_state = false;
- sun_do_break();
- }
-#endif
-
- if (kbd->kbdmode == VC_MEDIUMRAW) {
- /*
- * This is extended medium raw mode, with keys above 127
- * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing
- * the 'up' flag if needed. 0 is reserved, so this shouldn't
- * interfere with anything else. The two bytes after 0 will
- * always have the up flag set not to interfere with older
- * applications. This allows for 16384 different keycodes,
- * which should be enough.
- */
- if (keycode < 128) {
- put_queue(vc, keycode | (!down << 7));
- } else {
- put_queue(vc, !down << 7);
- put_queue(vc, (keycode >> 7) | 0x80);
- put_queue(vc, keycode | 0x80);
- }
- raw_mode = true;
- }
-
- if (down)
- set_bit(keycode, key_down);
- else
- clear_bit(keycode, key_down);
-
- if (rep &&
- (!vc_kbd_mode(kbd, VC_REPEAT) ||
- (tty && !L_ECHO(tty) && tty_chars_in_buffer(tty)))) {
- /*
- * Don't repeat a key if the input buffers are not empty and the
- * characters get aren't echoed locally. This makes key repeat
- * usable with slow applications and under heavy loads.
- */
- return;
- }
-
- param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate;
- param.ledstate = kbd->ledflagstate;
- key_map = key_maps[shift_final];
-
- rc = atomic_notifier_call_chain(&keyboard_notifier_list,
- KBD_KEYCODE, &param);
- if (rc == NOTIFY_STOP || !key_map) {
- atomic_notifier_call_chain(&keyboard_notifier_list,
- KBD_UNBOUND_KEYCODE, &param);
- compute_shiftstate();
- kbd->slockstate = 0;
- return;
- }
-
- if (keycode < NR_KEYS)
- keysym = key_map[keycode];
- else if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8)
- keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1));
- else
- return;
-
- type = KTYP(keysym);
-
- if (type < 0xf0) {
- param.value = keysym;
- rc = atomic_notifier_call_chain(&keyboard_notifier_list,
- KBD_UNICODE, &param);
- if (rc != NOTIFY_STOP)
- if (down && !raw_mode)
- to_utf8(vc, keysym);
- return;
- }
-
- type -= 0xf0;
-
- if (type == KT_LETTER) {
- type = KT_LATIN;
- if (vc_kbd_led(kbd, VC_CAPSLOCK)) {
- key_map = key_maps[shift_final ^ (1 << KG_SHIFT)];
- if (key_map)
- keysym = key_map[keycode];
- }
- }
-
- param.value = keysym;
- rc = atomic_notifier_call_chain(&keyboard_notifier_list,
- KBD_KEYSYM, &param);
- if (rc == NOTIFY_STOP)
- return;
-
- if (raw_mode && type != KT_SPEC && type != KT_SHIFT)
- return;
-
- (*k_handler[type])(vc, keysym & 0xff, !down);
-
- param.ledstate = kbd->ledflagstate;
- atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, &param);
-
- if (type != KT_SLOCK)
- kbd->slockstate = 0;
-}
-
-static void kbd_event(struct input_handle *handle, unsigned int event_type,
- unsigned int event_code, int value)
-{
- /* We are called with interrupts disabled, just take the lock */
- spin_lock(&kbd_event_lock);
-
- if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev))
- kbd_rawcode(value);
- if (event_type == EV_KEY)
- kbd_keycode(event_code, value, HW_RAW(handle->dev));
-
- spin_unlock(&kbd_event_lock);
-
- tasklet_schedule(&keyboard_tasklet);
- do_poke_blanked_console = 1;
- schedule_console_callback();
-}
-
-static bool kbd_match(struct input_handler *handler, struct input_dev *dev)
-{
- int i;
-
- if (test_bit(EV_SND, dev->evbit))
- return true;
-
- if (test_bit(EV_KEY, dev->evbit)) {
- for (i = KEY_RESERVED; i < BTN_MISC; i++)
- if (test_bit(i, dev->keybit))
- return true;
- for (i = KEY_BRL_DOT1; i <= KEY_BRL_DOT10; i++)
- if (test_bit(i, dev->keybit))
- return true;
- }
-
- return false;
-}
-
-/*
- * When a keyboard (or other input device) is found, the kbd_connect
- * function is called. The function then looks at the device, and if it
- * likes it, it can open it and get events from it. In this (kbd_connect)
- * function, we should decide which VT to bind that keyboard to initially.
- */
-static int kbd_connect(struct input_handler *handler, struct input_dev *dev,
- const struct input_device_id *id)
-{
- struct input_handle *handle;
- int error;
-
- handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
- if (!handle)
- return -ENOMEM;
-
- handle->dev = dev;
- handle->handler = handler;
- handle->name = "kbd";
-
- error = input_register_handle(handle);
- if (error)
- goto err_free_handle;
-
- error = input_open_device(handle);
- if (error)
- goto err_unregister_handle;
-
- return 0;
-
- err_unregister_handle:
- input_unregister_handle(handle);
- err_free_handle:
- kfree(handle);
- return error;
-}
-
-static void kbd_disconnect(struct input_handle *handle)
-{
- input_close_device(handle);
- input_unregister_handle(handle);
- kfree(handle);
-}
-
-/*
- * Start keyboard handler on the new keyboard by refreshing LED state to
- * match the rest of the system.
- */
-static void kbd_start(struct input_handle *handle)
-{
- tasklet_disable(&keyboard_tasklet);
-
- if (ledstate != 0xff)
- kbd_update_leds_helper(handle, &ledstate);
-
- tasklet_enable(&keyboard_tasklet);
-}
-
-static const struct input_device_id kbd_ids[] = {
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- },
-
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
- .evbit = { BIT_MASK(EV_SND) },
- },
-
- { }, /* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE(input, kbd_ids);
-
-static struct input_handler kbd_handler = {
- .event = kbd_event,
- .match = kbd_match,
- .connect = kbd_connect,
- .disconnect = kbd_disconnect,
- .start = kbd_start,
- .name = "kbd",
- .id_table = kbd_ids,
-};
-
-int __init kbd_init(void)
-{
- int i;
- int error;
-
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
- kbd_table[i].ledflagstate = KBD_DEFLEDS;
- kbd_table[i].default_ledflagstate = KBD_DEFLEDS;
- kbd_table[i].ledmode = LED_SHOW_FLAGS;
- kbd_table[i].lockstate = KBD_DEFLOCK;
- kbd_table[i].slockstate = 0;
- kbd_table[i].modeflags = KBD_DEFMODE;
- kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE;
- }
-
- error = input_register_handler(&kbd_handler);
- if (error)
- return error;
-
- tasklet_enable(&keyboard_tasklet);
- tasklet_schedule(&keyboard_tasklet);
-
- return 0;
-}