diff options
Diffstat (limited to 'drivers/input/keyboard/maple_keyb.c')
| -rw-r--r-- | drivers/input/keyboard/maple_keyb.c | 280 |
1 files changed, 190 insertions, 90 deletions
diff --git a/drivers/input/keyboard/maple_keyb.c b/drivers/input/keyboard/maple_keyb.c index cc6aaf9e85b..5aa2361aef9 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 (c) YAEGASHI Takeshi, 2001 + * Porting to 2.6 Copyright (c) Adrian McMenamin, 2007 - 2009 + * + * 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 <linux/kernel.h> @@ -12,149 +28,233 @@ #include <linux/timer.h> #include <linux/maple.h> -MODULE_AUTHOR("YAEGASHI Takeshi <t@keshi.org>"); -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("Adrian McMenamin <adrian@mcmen.demon.co.uk"); +MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver"); +MODULE_LICENSE("GPL"); struct dc_kbd { 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) { - int i; struct input_dev *dev = kbd->dev; + void *ptr; + int code, keycode; + int i; - for (i = 0; i < 8; i++) - input_report_key(dev, dc_kbd_keycode[i + 224], (kbd->new[0] >> i) & 1); + 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++) { - - 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]); + 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 + dev_dbg(&dev->dev, + "Unknown key (scancode %#x) released.", + code); } - - 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]); + 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 + dev_dbg(&dev->dev, + "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; + struct dc_kbd *kbd = maple_get_drvdata(mapledev); + unsigned long *buf = (unsigned long *)(mq->recvbuf->buf); + + /* + * We should always get the lock because the only + * time it may be locked is if the driver is in the cleanup phase. + */ + if (likely(mutex_trylock(&maple_keyb_mutex))) { + + if (buf[1] == mapledev->function) { + memcpy(kbd->new, buf + 2, 8); + dc_scan_kbd(kbd); + } - 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 probe_maple_kbd(struct device *dev) { + struct maple_device *mdev; + struct maple_driver *mdrv; + int i, error; struct dc_kbd *kbd; - struct input_dev *input_dev; - unsigned long data = be32_to_cpu(dev->devinfo.function_data[0]); - int i; + struct input_dev *idev; + + mdev = to_maple_dev(dev); + mdrv = to_maple_driver(dev->driver); - dev->private_data = kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!kbd || !input_dev) { - kfree(kbd); - input_free_device(input_dev); - return -ENOMEM; + kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL); + if (!kbd) { + error = -ENOMEM; + goto fail; } - kbd->dev = input_dev; + idev = input_allocate_device(); + if (!idev) { + error = -ENOMEM; + goto fail_idev_alloc; + } - input_dev->name = dev->product_name; - input_dev->id.bustype = BUS_MAPLE; - input_dev->private = kbd; - input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); - for (i = 0; i < 255; i++) - set_bit(dc_kbd_keycode[i], input_dev->keybit); - clear_bit(0, input_dev->keybit); + kbd->dev = idev; + memcpy(kbd->keycode, dc_kbd_keycode, sizeof(kbd->keycode)); - input_register_device(kbd->dev); + idev->name = mdev->product_name; + idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); + idev->keycode = kbd->keycode; + idev->keycodesize = sizeof(unsigned short); + idev->keycodemax = ARRAY_SIZE(kbd->keycode); + idev->id.bustype = BUS_HOST; + idev->dev.parent = &mdev->dev; - maple_getcond_callback(dev, dc_kbd_callback, 1, MAPLE_FUNC_KEYBOARD); - return 0; -} + for (i = 0; i < NR_SCANCODES; i++) + __set_bit(dc_kbd_keycode[i], idev->keybit); + __clear_bit(KEY_RESERVED, idev->keybit); + input_set_capability(idev, EV_MSC, MSC_SCAN); + input_set_drvdata(idev, kbd); -static void dc_kbd_disconnect(struct maple_device *dev) + error = input_register_device(idev); + if (error) + goto fail_register; + + /* Maple polling is locked to VBLANK - which may be just 50/s */ + maple_getcond_callback(mdev, dc_kbd_callback, HZ/50, + MAPLE_FUNC_KEYBOARD); + + mdev->driver = mdrv; + + maple_set_drvdata(mdev, kbd); + + return error; + +fail_register: + maple_set_drvdata(mdev, NULL); + input_free_device(idev); +fail_idev_alloc: + kfree(kbd); +fail: + return error; +} + +static int remove_maple_kbd(struct device *dev) { - struct dc_kbd *kbd = dev->private_data; + struct maple_device *mdev = to_maple_dev(dev); + struct dc_kbd *kbd = maple_get_drvdata(mdev); + + mutex_lock(&maple_keyb_mutex); input_unregister_device(kbd->dev); kfree(kbd); -} + maple_set_drvdata(mdev, NULL); + + mutex_unlock(&maple_keyb_mutex); + 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, + .drv = { + .name = "Dreamcast_keyboard", + .probe = probe_maple_kbd, + .remove = remove_maple_kbd, + }, }; - static int __init dc_kbd_init(void) { - maple_register_driver(&dc_kbd_driver); - return 0; + return maple_driver_register(&dc_kbd_driver); } - static void __exit dc_kbd_exit(void) { - maple_unregister_driver(&dc_kbd_driver); + maple_driver_unregister(&dc_kbd_driver); } - module_init(dc_kbd_init); module_exit(dc_kbd_exit); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ |