171 lines
4.0 KiB
C
171 lines
4.0 KiB
C
/*
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* $Id: maple_keyb.c,v 1.4 2004/03/22 01:18:15 lethal Exp $
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* SEGA Dreamcast keyboard driver
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* Based on drivers/usb/usbkbd.c
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/timer.h>
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#include <linux/maple.h>
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MODULE_AUTHOR("YAEGASHI Takeshi <t@keshi.org>");
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MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver");
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MODULE_LICENSE("GPL");
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static unsigned char dc_kbd_keycode[256] = {
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0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
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50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
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4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
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27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
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65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
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105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
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72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
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191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
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115,114, 0, 0, 0,121, 0, 89, 93,124, 92, 94, 95, 0, 0, 0,
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122,123, 90, 91, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
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150,158,159,128,136,177,178,176,142,152,173,140
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};
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struct dc_kbd {
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struct input_dev dev;
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unsigned char new[8];
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unsigned char old[8];
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};
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static void dc_scan_kbd(struct dc_kbd *kbd)
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{
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int i;
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struct input_dev *dev = &kbd->dev;
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for(i=0; i<8; i++)
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input_report_key(dev,
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dc_kbd_keycode[i+224],
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(kbd->new[0]>>i)&1);
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for(i=2; i<8; i++) {
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if(kbd->old[i]>3&&memscan(kbd->new+2, kbd->old[i], 6)==NULL) {
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if(dc_kbd_keycode[kbd->old[i]])
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input_report_key(dev,
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dc_kbd_keycode[kbd->old[i]],
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0);
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else
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printk("Unknown key (scancode %#x) released.",
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kbd->old[i]);
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}
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if(kbd->new[i]>3&&memscan(kbd->old+2, kbd->new[i], 6)!=NULL) {
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if(dc_kbd_keycode[kbd->new[i]])
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input_report_key(dev,
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dc_kbd_keycode[kbd->new[i]],
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1);
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else
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printk("Unknown key (scancode %#x) pressed.",
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kbd->new[i]);
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}
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}
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input_sync(dev);
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memcpy(kbd->old, kbd->new, 8);
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}
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static void dc_kbd_callback(struct mapleq *mq)
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{
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struct maple_device *mapledev = mq->dev;
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struct dc_kbd *kbd = mapledev->private_data;
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unsigned long *buf = mq->recvbuf;
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if (buf[1] == mapledev->function) {
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memcpy(kbd->new, buf+2, 8);
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dc_scan_kbd(kbd);
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}
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}
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static int dc_kbd_connect(struct maple_device *dev)
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{
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int i;
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unsigned long data = be32_to_cpu(dev->devinfo.function_data[0]);
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struct dc_kbd *kbd;
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if (!(kbd = kmalloc(sizeof(struct dc_kbd), GFP_KERNEL)))
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return -1;
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memset(kbd, 0, sizeof(struct dc_kbd));
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dev->private_data = kbd;
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kbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
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init_input_dev(&kbd->dev);
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for (i=0; i<255; i++)
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set_bit(dc_kbd_keycode[i], kbd->dev.keybit);
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clear_bit(0, kbd->dev.keybit);
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kbd->dev.private = kbd;
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kbd->dev.name = dev->product_name;
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kbd->dev.id.bustype = BUS_MAPLE;
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input_register_device(&kbd->dev);
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maple_getcond_callback(dev, dc_kbd_callback, 1, MAPLE_FUNC_KEYBOARD);
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printk(KERN_INFO "input: keyboard(0x%lx): %s\n", data, kbd->dev.name);
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return 0;
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}
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static void dc_kbd_disconnect(struct maple_device *dev)
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{
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struct dc_kbd *kbd = dev->private_data;
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input_unregister_device(&kbd->dev);
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kfree(kbd);
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}
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static struct maple_driver dc_kbd_driver = {
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.function = MAPLE_FUNC_KEYBOARD,
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.name = "Dreamcast keyboard",
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.connect = dc_kbd_connect,
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.disconnect = dc_kbd_disconnect,
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};
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static int __init dc_kbd_init(void)
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{
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maple_register_driver(&dc_kbd_driver);
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return 0;
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}
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static void __exit dc_kbd_exit(void)
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{
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maple_unregister_driver(&dc_kbd_driver);
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}
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module_init(dc_kbd_init);
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module_exit(dc_kbd_exit);
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/*
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* Local variables:
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* c-basic-offset: 8
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* End:
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*/
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