1 files changed, 190 insertions, 0 deletions

diff --git a/drivers/input/keyboard/maple_keyb.c b/drivers/input/keyboard/maple_keyb.c
new file mode 100644
index 000000000000..859ed771ee0a
--- /dev/null
+++ b/drivers/input/keyboard/maple_keyb.c
@@ -0,0 +1,190 @@
+/*
+ *      $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];
+        int open;
+};
+
+
+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_open(struct input_dev *dev)
+{
+        struct dc_kbd *kbd = dev->private;
+        kbd->open++;
+        return 0;
+}
+
+
+static void dc_kbd_close(struct input_dev *dev)
+{
+        struct dc_kbd *kbd = dev->private;
+        kbd->open--;
+}
+
+
+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.open = dc_kbd_open;
+        kbd->dev.close = dc_kbd_close;
+        kbd->dev.event = NULL;
+
+        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:
+ */