X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Finput%2Fkeyboard%2Fmaple_keyb.c;h=2b404284c28ae642e110e737f24563531e8613bd;hb=babd90b274e6b43a7dc7bb08562bf566cbabdbf8;hp=eecbde294f1f091266f57a5d1e97c80f7c14ebec;hpb=2f058256cb64e346f4fb4499ff4e0f1c2791a4b4;p=linux-2.6 diff --git a/drivers/input/keyboard/maple_keyb.c b/drivers/input/keyboard/maple_keyb.c index eecbde294f..2b404284c2 100644 --- a/drivers/input/keyboard/maple_keyb.c +++ b/drivers/input/keyboard/maple_keyb.c @@ -1,7 +1,23 @@ /* - * $Id: maple_keyb.c,v 1.4 2004/03/22 01:18:15 lethal Exp $ - * SEGA Dreamcast keyboard driver - * Based on drivers/usb/usbkbd.c + * SEGA Dreamcast keyboard driver + * Based on drivers/usb/usbkbd.c + * Copyright YAEGASHI Takeshi, 2001 + * Porting to 2.6 Copyright Adrian McMenamin, 2007 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include @@ -11,160 +27,226 @@ #include #include #include +#include -MODULE_AUTHOR("YAEGASHI Takeshi "); -MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver"); -MODULE_LICENSE("GPL"); +/* Very simple mutex to ensure proper cleanup */ +static DEFINE_MUTEX(maple_keyb_mutex); -static unsigned char dc_kbd_keycode[256] = { - 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, - 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3, - 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26, - 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64, - 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106, - 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71, - 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190, - 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113, - 115,114, 0, 0, 0,121, 0, 89, 93,124, 92, 94, 95, 0, 0, 0, - 122,123, 90, 91, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113, - 150,158,159,128,136,177,178,176,142,152,173,140 -}; +#define NR_SCANCODES 256 +MODULE_AUTHOR("YAEGASHI Takeshi, Adrian McMenamin"); +MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver"); +MODULE_LICENSE("GPL"); struct dc_kbd { - struct input_dev dev; + struct input_dev *dev; + unsigned short keycode[NR_SCANCODES]; unsigned char new[8]; unsigned char old[8]; }; +static const unsigned short dc_kbd_keycode[NR_SCANCODES] = { + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_A, KEY_B, KEY_C, KEY_D, + KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, + KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, + KEY_U, KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_1, KEY_2, + KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0, + KEY_ENTER, KEY_ESC, KEY_BACKSPACE, KEY_TAB, KEY_SPACE, KEY_MINUS, KEY_EQUAL, KEY_LEFTBRACE, + KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_BACKSLASH, KEY_SEMICOLON, KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, + KEY_DOT, KEY_SLASH, KEY_CAPSLOCK, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, + KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_SYSRQ, + KEY_SCROLLLOCK, KEY_PAUSE, KEY_INSERT, KEY_HOME, KEY_PAGEUP, KEY_DELETE, + KEY_END, KEY_PAGEDOWN, KEY_RIGHT, KEY_LEFT, KEY_DOWN, KEY_UP, + KEY_NUMLOCK, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS, KEY_KPPLUS, KEY_KPENTER, KEY_KP1, KEY_KP2, + KEY_KP3, KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, KEY_KP8, KEY_KP9, KEY_KP0, KEY_KPDOT, + KEY_102ND, KEY_COMPOSE, KEY_POWER, KEY_KPEQUAL, KEY_F13, KEY_F14, KEY_F15, + KEY_F16, KEY_F17, KEY_F18, KEY_F19, KEY_F20, + KEY_F21, KEY_F22, KEY_F23, KEY_F24, KEY_OPEN, KEY_HELP, KEY_PROPS, KEY_FRONT, + KEY_STOP, KEY_AGAIN, KEY_UNDO, KEY_CUT, KEY_COPY, KEY_PASTE, KEY_FIND, KEY_MUTE, + KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_KPCOMMA, KEY_RESERVED, KEY_RO, KEY_KATAKANAHIRAGANA , KEY_YEN, + KEY_HENKAN, KEY_MUHENKAN, KEY_KPJPCOMMA, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_HANGEUL, KEY_HANJA, KEY_KATAKANA, KEY_HIRAGANA, KEY_ZENKAKUHANKAKU, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_LEFTCTRL, KEY_LEFTSHIFT, KEY_LEFTALT, KEY_LEFTMETA, KEY_RIGHTCTRL, KEY_RIGHTSHIFT, KEY_RIGHTALT, KEY_RIGHTMETA, + KEY_PLAYPAUSE, KEY_STOPCD, KEY_PREVIOUSSONG, KEY_NEXTSONG, KEY_EJECTCD, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, + KEY_WWW, KEY_BACK, KEY_FORWARD, KEY_STOP, KEY_FIND, KEY_SCROLLUP, KEY_SCROLLDOWN, KEY_EDIT, KEY_SLEEP, + KEY_SCREENLOCK, KEY_REFRESH, KEY_CALC, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED +}; static void dc_scan_kbd(struct dc_kbd *kbd) { + struct input_dev *dev = kbd->dev; + void *ptr; + int code, keycode; int i; - struct input_dev *dev = &kbd->dev; - - for(i=0; i<8; i++) - input_report_key(dev, - dc_kbd_keycode[i+224], - (kbd->new[0]>>i)&1); - - for(i=2; i<8; i++) { - - if(kbd->old[i]>3&&memscan(kbd->new+2, kbd->old[i], 6)==NULL) { - if(dc_kbd_keycode[kbd->old[i]]) - input_report_key(dev, - dc_kbd_keycode[kbd->old[i]], - 0); - else - printk("Unknown key (scancode %#x) released.", - kbd->old[i]); - } - if(kbd->new[i]>3&&memscan(kbd->old+2, kbd->new[i], 6)!=NULL) { - if(dc_kbd_keycode[kbd->new[i]]) - input_report_key(dev, - dc_kbd_keycode[kbd->new[i]], - 1); - else - printk("Unknown key (scancode %#x) pressed.", - kbd->new[i]); - } + for (i = 0; i < 8; i++) { + code = i + 224; + keycode = kbd->keycode[code]; + input_event(dev, EV_MSC, MSC_SCAN, code); + input_report_key(dev, keycode, (kbd->new[0] >> i) & 1); } + for (i = 2; i < 8; i++) { + ptr = memchr(kbd->new + 2, kbd->old[i], 6); + code = kbd->old[i]; + if (code > 3 && ptr == NULL) { + keycode = kbd->keycode[code]; + if (keycode) { + input_event(dev, EV_MSC, MSC_SCAN, code); + input_report_key(dev, keycode, 0); + } else + printk(KERN_DEBUG "maple_keyb: " + "Unknown key (scancode %#x) released.", + code); + } + ptr = memchr(kbd->old + 2, kbd->new[i], 6); + code = kbd->new[i]; + if (code > 3 && ptr) { + keycode = kbd->keycode[code]; + if (keycode) { + input_event(dev, EV_MSC, MSC_SCAN, code); + input_report_key(dev, keycode, 1); + } else + printk(KERN_DEBUG "maple_keyb: " + "Unknown key (scancode %#x) pressed.", + code); + } + } input_sync(dev); - memcpy(kbd->old, kbd->new, 8); } - static void dc_kbd_callback(struct mapleq *mq) { struct maple_device *mapledev = mq->dev; struct dc_kbd *kbd = mapledev->private_data; unsigned long *buf = mq->recvbuf; - if (buf[1] == mapledev->function) { - memcpy(kbd->new, buf+2, 8); - dc_scan_kbd(kbd); + /* + * We should always be getting the lock because the only + * time it may be locked if driver is in cleanup phase. + */ + if (likely(mutex_trylock(&maple_keyb_mutex))) { + + if (buf[1] == mapledev->function) { + memcpy(kbd->new, buf + 2, 8); + dc_scan_kbd(kbd); + } + + mutex_unlock(&maple_keyb_mutex); } } -static int dc_kbd_connect(struct maple_device *dev) +static int dc_kbd_connect(struct maple_device *mdev) { - int i; - unsigned long data = be32_to_cpu(dev->devinfo.function_data[0]); + int i, error; struct dc_kbd *kbd; + struct input_dev *dev; - if (!(kbd = kmalloc(sizeof(struct dc_kbd), GFP_KERNEL))) - return -1; - memset(kbd, 0, sizeof(struct dc_kbd)); - - dev->private_data = kbd; - - kbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP); - - init_input_dev(&kbd->dev); + if (!(mdev->function & MAPLE_FUNC_KEYBOARD)) + return -EINVAL; - for (i=0; i<255; i++) - set_bit(dc_kbd_keycode[i], kbd->dev.keybit); + kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL); + dev = input_allocate_device(); + if (!kbd || !dev) { + error = -ENOMEM; + goto fail; + } - clear_bit(0, kbd->dev.keybit); + mdev->private_data = kbd; - kbd->dev.private = kbd; + kbd->dev = dev; + memcpy(kbd->keycode, dc_kbd_keycode, sizeof(kbd->keycode)); - kbd->dev.name = dev->product_name; - kbd->dev.id.bustype = BUS_MAPLE; + dev->name = mdev->product_name; + dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); + dev->keycode = kbd->keycode; + dev->keycodesize = sizeof (unsigned short); + dev->keycodemax = ARRAY_SIZE(kbd->keycode); + dev->id.bustype = BUS_HOST; + dev->dev.parent = &mdev->dev; - input_register_device(&kbd->dev); + for (i = 0; i < NR_SCANCODES; i++) + __set_bit(dc_kbd_keycode[i], dev->keybit); + __clear_bit(KEY_RESERVED, dev->keybit); - maple_getcond_callback(dev, dc_kbd_callback, 1, MAPLE_FUNC_KEYBOARD); + input_set_capability(dev, EV_MSC, MSC_SCAN); + input_set_drvdata(dev, kbd); - printk(KERN_INFO "input: keyboard(0x%lx): %s\n", data, kbd->dev.name); + error = input_register_device(dev); + if (error) + goto fail; + /* Maple polling is locked to VBLANK - which may be just 50/s */ + maple_getcond_callback(mdev, dc_kbd_callback, HZ/50, MAPLE_FUNC_KEYBOARD); return 0; -} + fail: + input_free_device(dev); + kfree(kbd); + mdev->private_data = NULL; + return error; +} -static void dc_kbd_disconnect(struct maple_device *dev) +static void dc_kbd_disconnect(struct maple_device *mdev) { - struct dc_kbd *kbd = dev->private_data; + struct dc_kbd *kbd; - input_unregister_device(&kbd->dev); + mutex_lock(&maple_keyb_mutex); + + kbd = mdev->private_data; + mdev->private_data = NULL; + input_unregister_device(kbd->dev); kfree(kbd); + + mutex_unlock(&maple_keyb_mutex); } +/* allow the keyboard to be used */ +static int probe_maple_kbd(struct device *dev) +{ + struct maple_device *mdev = to_maple_dev(dev); + struct maple_driver *mdrv = to_maple_driver(dev->driver); + int error; + + error = dc_kbd_connect(mdev); + if (error) + return error; + + mdev->driver = mdrv; + mdev->registered = 1; + + return 0; +} static struct maple_driver dc_kbd_driver = { - .function = MAPLE_FUNC_KEYBOARD, - .name = "Dreamcast keyboard", - .connect = dc_kbd_connect, - .disconnect = dc_kbd_disconnect, + .function = MAPLE_FUNC_KEYBOARD, + .connect = dc_kbd_connect, + .disconnect = dc_kbd_disconnect, + .drv = { + .name = "Dreamcast_keyboard", + .probe = probe_maple_kbd, + }, }; - static int __init dc_kbd_init(void) { - maple_register_driver(&dc_kbd_driver); - return 0; + return maple_driver_register(&dc_kbd_driver.drv); } - static void __exit dc_kbd_exit(void) { - maple_unregister_driver(&dc_kbd_driver); + driver_unregister(&dc_kbd_driver.drv); } - module_init(dc_kbd_init); module_exit(dc_kbd_exit); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */