X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fchar%2Fkeyboard.c;h=3d75591eb0ff34c18889aa9c2a16e740fa30b388;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=7b19e02f112fd585d02fe48e4eb1eb8c2a0001cc;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c index 7b19e02f1..3d75591eb 100644 --- a/drivers/char/keyboard.c +++ b/drivers/char/keyboard.c @@ -14,7 +14,7 @@ * `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 @@ -52,7 +52,7 @@ extern void ctrl_alt_del(void); /* * 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 + * of PARISC machines however there is no NumLock key and everyone expects the keypad * to be used for numbers. */ @@ -74,19 +74,19 @@ void compute_shiftstate(void); 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_ignore, k_ignore + k_slock, k_dead2, k_brl, k_ignore -typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, +typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs); 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 + 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, struct pt_regs *regs); static fn_handler_fn FN_HANDLERS; @@ -100,7 +100,7 @@ static fn_handler_fn *fn_handler[] = { FN_HANDLERS }; 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 + 255, NR_LOCK - 1, 255, NR_BRL - 1 }; const int NR_TYPES = ARRAY_SIZE(max_vals); @@ -126,7 +126,7 @@ static unsigned long key_down[NBITS(KEY_MAX)]; /* keyboard key bitmap */ static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ static int dead_key_next; static int npadch = -1; /* -1 or number assembled on pad */ -static unsigned char diacr; +static unsigned int diacr; static char rep; /* flag telling character repeat */ static unsigned char ledstate = 0xff; /* undefined */ @@ -159,13 +159,13 @@ static int sysrq_alt; */ int getkeycode(unsigned int scancode) { - struct list_head * node; + struct list_head *node; struct input_dev *dev = NULL; - list_for_each(node,&kbd_handler.h_list) { - struct input_handle * handle = to_handle_h(node); - if (handle->dev->keycodesize) { - dev = handle->dev; + list_for_each(node, &kbd_handler.h_list) { + struct input_handle *handle = to_handle_h(node); + if (handle->dev->keycodesize) { + dev = handle->dev; break; } } @@ -181,15 +181,15 @@ int getkeycode(unsigned int scancode) int setkeycode(unsigned int scancode, unsigned int keycode) { - struct list_head * node; + struct list_head *node; struct input_dev *dev = NULL; unsigned int i, oldkey; - list_for_each(node,&kbd_handler.h_list) { + list_for_each(node, &kbd_handler.h_list) { struct input_handle *handle = to_handle_h(node); - if (handle->dev->keycodesize) { - dev = handle->dev; - break; + if (handle->dev->keycodesize) { + dev = handle->dev; + break; } } @@ -198,10 +198,10 @@ int setkeycode(unsigned int scancode, unsigned int keycode) if (scancode >= dev->keycodemax) return -EINVAL; - if (keycode > KEY_MAX) - return -EINVAL; if (keycode < 0 || keycode > KEY_MAX) return -EINVAL; + if (dev->keycodesize < sizeof(keycode) && (keycode >> (dev->keycodesize * 8))) + return -EINVAL; oldkey = SET_INPUT_KEYCODE(dev, scancode, keycode); @@ -216,11 +216,11 @@ int setkeycode(unsigned int scancode, unsigned int keycode) } /* - * Making beeps and bells. + * Making beeps and bells. */ static void kd_nosound(unsigned long ignored) { - struct list_head * node; + struct list_head *node; list_for_each(node,&kbd_handler.h_list) { struct input_handle *handle = to_handle_h(node); @@ -233,17 +233,16 @@ static void kd_nosound(unsigned long ignored) } } -static struct timer_list kd_mksound_timer = - TIMER_INITIALIZER(kd_nosound, 0, 0); +static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); void kd_mksound(unsigned int hz, unsigned int ticks) { - struct list_head * node; + struct list_head *node; del_timer(&kd_mksound_timer); if (hz) { - list_for_each_prev(node,&kbd_handler.h_list) { + list_for_each_prev(node, &kbd_handler.h_list) { struct input_handle *handle = to_handle_h(node); if (test_bit(EV_SND, handle->dev->evbit)) { if (test_bit(SND_TONE, handle->dev->sndbit)) { @@ -338,19 +337,19 @@ static void to_utf8(struct vc_data *vc, ushort c) if (c < 0x80) /* 0******* */ put_queue(vc, c); - else if (c < 0x800) { + else if (c < 0x800) { /* 110***** 10****** */ - put_queue(vc, 0xc0 | (c >> 6)); + put_queue(vc, 0xc0 | (c >> 6)); put_queue(vc, 0x80 | (c & 0x3f)); - } else { + } else { /* 1110**** 10****** 10****** */ put_queue(vc, 0xe0 | (c >> 12)); 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 @@ -361,7 +360,7 @@ void compute_shiftstate(void) shift_state = 0; memset(shift_down, 0, sizeof(shift_down)); - + for (i = 0; i < ARRAY_SIZE(key_down); i++) { if (!key_down[i]) @@ -395,22 +394,30 @@ void compute_shiftstate(void) * Otherwise, conclude that DIACR was not combining after all, * queue it and return CH. */ -static unsigned char handle_diacr(struct vc_data *vc, unsigned char ch) +static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) { - int d = diacr; + unsigned int d = diacr; unsigned int i; diacr = 0; - 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 ((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 == d) + if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) return d; - put_queue(vc, d); + if (kbd->kbdmode == VC_UNICODE) + to_utf8(vc, d); + else if (d < 0x100) + put_queue(vc, d); + return ch; } @@ -420,7 +427,10 @@ static unsigned char handle_diacr(struct vc_data *vc, unsigned char ch) static void fn_enter(struct vc_data *vc, struct pt_regs *regs) { if (diacr) { - put_queue(vc, diacr); + if (kbd->kbdmode == VC_UNICODE) + to_utf8(vc, diacr); + else if (diacr < 0x100) + put_queue(vc, diacr); diacr = 0; } put_queue(vc, 13); @@ -500,9 +510,9 @@ static void fn_dec_console(struct vc_data *vc, struct pt_regs *regs) if (want_console != -1) cur = want_console; - for (i = cur-1; i != cur; i--) { + for (i = cur - 1; i != cur; i--) { if (i == -1) - i = MAX_NR_CONSOLES-1; + i = MAX_NR_CONSOLES - 1; if (vc_cons_allocated(i)) break; } @@ -568,9 +578,9 @@ static void fn_compose(struct vc_data *vc, struct pt_regs *regs) static void fn_spawn_con(struct vc_data *vc, struct pt_regs *regs) { - if (spawnpid) - if(kill_proc(spawnpid, spawnsig, 1)) - spawnpid = 0; + if (spawnpid) + if (kill_proc(spawnpid, spawnsig, 1)) + spawnpid = 0; } static void fn_SAK(struct vc_data *vc, struct pt_regs *regs) @@ -604,8 +614,8 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag, struct return; if (value >= ARRAY_SIZE(fn_handler)) return; - if ((kbd->kbdmode == VC_RAW || - kbd->kbdmode == VC_MEDIUMRAW) && + 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, regs); @@ -616,7 +626,7 @@ static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag, s printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n"); } -static void k_self(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) +static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag, struct pt_regs *regs) { if (up_flag) return; /* no action, if this is a key release */ @@ -629,7 +639,10 @@ static void k_self(struct vc_data *vc, unsigned char value, char up_flag, struct diacr = value; return; } - put_queue(vc, value); + if (kbd->kbdmode == VC_UNICODE) + to_utf8(vc, value); + else if (value < 0x100) + put_queue(vc, value); } /* @@ -637,13 +650,23 @@ static void k_self(struct vc_data *vc, unsigned char value, char up_flag, struct * dead keys modifying the same character. Very useful * for Vietnamese. */ -static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) +static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag, struct pt_regs *regs) { 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, struct pt_regs *regs) +{ + k_unicode(vc, value, up_flag, regs); +} + +static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) +{ + k_deadunicode(vc, value, up_flag, regs); +} + /* * Obsolete - for backwards compatibility only */ @@ -651,7 +674,7 @@ static void k_dead(struct vc_data *vc, unsigned char value, char up_flag, struct { static unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; value = ret_diacr[value]; - k_dead2(vc, value, up_flag, regs); + k_deadunicode(vc, value, up_flag, regs); } static void k_cons(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) @@ -836,6 +859,80 @@ static void k_slock(struct vc_data *vc, unsigned char value, char up_flag, struc } } +/* 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, struct pt_regs *regs) +{ + static unsigned long chords; + static unsigned committed; + + if (!brl_nbchords) + k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag, regs); + else { + committed |= pattern; + chords++; + if (chords == brl_nbchords) { + k_unicode(vc, BRL_UC_ROW | committed, up_flag, regs); + chords = 0; + committed = 0; + } + } +} + +static void k_brl(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) +{ + static unsigned pressed,committing; + static unsigned long releasestart; + + if (kbd->kbdmode != VC_UNICODE) { + if (!up_flag) + printk("keyboard mode must be unicode for braille patterns\n"); + return; + } + + if (!value) { + k_unicode(vc, BRL_UC_ROW, up_flag, regs); + return; + } + + if (value > 8) + return; + + if (up_flag) { + if (brl_timeout) { + if (!committing || + jiffies - releasestart > (brl_timeout * HZ) / 1000) { + committing = pressed; + releasestart = jiffies; + } + pressed &= ~(1 << (value - 1)); + if (!pressed) { + if (committing) { + k_brlcommit(vc, committing, 0, regs); + committing = 0; + } + } + } else { + if (committing) { + k_brlcommit(vc, committing, 0, regs); + committing = 0; + } + pressed &= ~(1 << (value - 1)); + } + } else { + pressed |= 1 << (value - 1); + if (!brl_timeout) + committing = pressed; + } +} + /* * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, * or (ii) whatever pattern of lights people want to show using KDSETLED, @@ -895,11 +992,11 @@ static inline unsigned char getleds(void) static void kbd_bh(unsigned long dummy) { - struct list_head * node; + struct list_head *node; unsigned char leds = getleds(); if (leds != ledstate) { - list_for_each(node,&kbd_handler.h_list) { + list_for_each(node, &kbd_handler.h_list) { struct input_handle * handle = to_handle_h(node); input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01)); input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02)); @@ -931,8 +1028,8 @@ static void kbd_refresh_leds(struct input_handle *handle) } #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ - defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC32) ||\ - defined(CONFIG_SPARC64) || defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ + 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)) #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ @@ -959,16 +1056,16 @@ static unsigned short x86_keycodes[256] = extern int mac_hid_mouse_emulate_buttons(int, int, int); #endif /* CONFIG_MAC_EMUMOUSEBTN */ -#if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64) +#ifdef CONFIG_SPARC static int sparc_l1_a_state = 0; extern void sun_do_break(void); #endif -static int emulate_raw(struct vc_data *vc, unsigned int keycode, +static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) { if (keycode > 255 || !x86_keycodes[keycode]) - return -1; + return -1; switch (keycode) { case KEY_PAUSE: @@ -982,7 +1079,7 @@ static int emulate_raw(struct vc_data *vc, unsigned int keycode, case KEY_HANJA: if (!up_flag) put_queue(vc, 0xf2); return 0; - } + } if (keycode == KEY_SYSRQ && sysrq_alt) { put_queue(vc, 0x54 | up_flag); @@ -1046,7 +1143,7 @@ static void kbd_keycode(unsigned int keycode, int down, if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) sysrq_alt = down; -#if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64) +#ifdef CONFIG_SPARC if (keycode == KEY_STOP) sparc_l1_a_state = down; #endif @@ -1073,7 +1170,7 @@ static void kbd_keycode(unsigned int keycode, int down, return; } #endif -#if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64) +#ifdef CONFIG_SPARC if (keycode == KEY_A && sparc_l1_a_state) { sparc_l1_a_state = 0; sun_do_break(); @@ -1105,11 +1202,12 @@ static void kbd_keycode(unsigned int keycode, int down, else clear_bit(keycode, key_down); - if (rep && (!vc_kbd_mode(kbd, VC_REPEAT) || (tty && - (!L_ECHO(tty) && tty->driver->chars_in_buffer(tty))))) { + if (rep && + (!vc_kbd_mode(kbd, VC_REPEAT) || + (tty && !L_ECHO(tty) && tty->driver->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 + * characters get aren't echoed locally. This makes key repeat * usable with slow applications and under heavy loads. */ return; @@ -1125,13 +1223,18 @@ static void kbd_keycode(unsigned int keycode, int down, } if (keycode > NR_KEYS) - return; + if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) + keysym = K(KT_BRL, keycode - KEY_BRL_DOT1 + 1); + else + return; + else + keysym = key_map[keycode]; - keysym = key_map[keycode]; type = KTYP(keysym); if (type < 0xf0) { - if (down && !raw_mode) to_utf8(vc, keysym); + if (down && !raw_mode) + to_utf8(vc, keysym); return; } @@ -1155,7 +1258,7 @@ static void kbd_keycode(unsigned int keycode, int down, kbd->slockstate = 0; } -static void kbd_event(struct input_handle *handle, unsigned int event_type, +static void kbd_event(struct input_handle *handle, unsigned int event_type, unsigned int event_code, int value) { if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) @@ -1167,15 +1270,13 @@ static void kbd_event(struct input_handle *handle, unsigned int event_type, schedule_console_callback(); } -static char kbd_name[] = "kbd"; - /* * 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 struct input_handle *kbd_connect(struct input_handler *handler, +static struct input_handle *kbd_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id) { @@ -1183,18 +1284,19 @@ static struct input_handle *kbd_connect(struct input_handler *handler, int i; for (i = KEY_RESERVED; i < BTN_MISC; i++) - if (test_bit(i, dev->keybit)) break; + if (test_bit(i, dev->keybit)) + break; - if ((i == BTN_MISC) && !test_bit(EV_SND, dev->evbit)) + if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit)) return NULL; - if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL))) + if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL))) return NULL; memset(handle, 0, sizeof(struct input_handle)); handle->dev = dev; handle->handler = handler; - handle->name = kbd_name; + handle->name = "kbd"; input_open_device(handle); kbd_refresh_leds(handle); @@ -1213,11 +1315,11 @@ static struct input_device_id kbd_ids[] = { .flags = INPUT_DEVICE_ID_MATCH_EVBIT, .evbit = { BIT(EV_KEY) }, }, - + { .flags = INPUT_DEVICE_ID_MATCH_EVBIT, .evbit = { BIT(EV_SND) }, - }, + }, { }, /* Terminating entry */ }; @@ -1241,7 +1343,7 @@ int __init kbd_init(void) kbd0.lockstate = KBD_DEFLOCK; kbd0.slockstate = 0; kbd0.modeflags = KBD_DEFMODE; - kbd0.kbdmode = VC_XLATE; + kbd0.kbdmode = VC_UNICODE; for (i = 0 ; i < MAX_NR_CONSOLES ; i++) kbd_table[i] = kbd0;