/* *	$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 */#include <linux/kernel.h>#include <linux/slab.h>#include <linux/input.h>#include <linux/module.h>#include <linux/init.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");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};struct dc_kbd {	struct input_dev dev;	unsigned char new[8];	unsigned char old[8];};static void dc_scan_kbd(struct dc_kbd *kbd){	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]);		}	}	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);	}}static int dc_kbd_connect(struct maple_device *dev){	int i;	unsigned long data = be32_to_cpu(dev->devinfo.function_data[0]);	struct dc_kbd *kbd;	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);	for (i=0; i<255; i++)		set_bit(dc_kbd_keycode[i], kbd->dev.keybit);	clear_bit(0, kbd->dev.keybit);	kbd->dev.private = kbd;	kbd->dev.name = dev->product_name;	kbd->dev.id.bustype = BUS_MAPLE;	input_register_device(&kbd->dev);	maple_getcond_callback(dev, dc_kbd_callback, 1, MAPLE_FUNC_KEYBOARD);	printk(KERN_INFO "input: keyboard(0x%lx): %s\n", data, kbd->dev.name);	return 0;}static void dc_kbd_disconnect(struct maple_device *dev){	struct dc_kbd *kbd = dev->private_data;	input_unregister_device(&kbd->dev);	kfree(kbd);}static struct maple_driver dc_kbd_driver = {	.function =	MAPLE_FUNC_KEYBOARD,	.name =		"Dreamcast keyboard",	.connect =	dc_kbd_connect,	.disconnect =	dc_kbd_disconnect,};static int __init dc_kbd_init(void){	maple_register_driver(&dc_kbd_driver);	return 0;}static void __exit dc_kbd_exit(void){	maple_unregister_driver(&dc_kbd_driver);}module_init(dc_kbd_init);module_exit(dc_kbd_exit);/* * Local variables: * c-basic-offset: 8 * End: */