diff options
Diffstat (limited to 'drivers/input/keyboard/maple_keyb.c')
| -rw-r--r-- | drivers/input/keyboard/maple_keyb.c | 190 |
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 00000000000..859ed771ee0 --- /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: + */ |