/*
- * $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 <linux/kernel.h>
#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("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:
- */
git.openpandora.org / pandora-kernel.git / blobdiff