59 	KBDC		kbdc;		/* keyboard controller */
76     "AT keyboard");
142 	/* attach a virtual keyboard cdev */  in atkbd_attach_unit()
149 	 * This is a kludge to compensate for lost keyboard interrupts.  in atkbd_attach_unit()
173 	 * With release 2.1 of the Xaccel server, the keyboard is left  in atkbd_timeout()
175 	 * keyboard is lost, and I don't know why (yet).  in atkbd_timeout()
177 	 * is ready for the keyboard and conveniently hides the problem. XXX  in atkbd_timeout()
179 	 * Try removing anything stuck in the keyboard controller; whether  in atkbd_timeout()
180 	 * it's a keyboard scan code or mouse data. The low-level  in atkbd_timeout()
182 	 * but the keyboard controller driver will, as a side effect.  in atkbd_timeout()
189 	 * would be no more keyboard IRQs until the keyboard is reset by  in atkbd_timeout()
192 	 * The keyboard apparently unwedges the irq in most cases.  in atkbd_timeout()
218 /* keyboard driver declaration */
289 /* structures for the default keyboard */
297  * The back door to the keyboard driver!
299  * to tickle keyboard drivers when the low-level console is being initialized.
313 	 * Probe the keyboard controller, if not present or if the driver  in atkbd_configure()
314 	 * is disabled, unregister the keyboard if any.  in atkbd_configure()
331 	/* probe the default keyboard */  in atkbd_configure()
346 /* detect a keyboard */
476 			evdev_set_name(evdev, "AT keyboard");  in atkbd_init()
527 /* finish using this keyboard */
538 /* keyboard interrupt routine */
548 		 * The keyboard was not detected before;  in atkbd_intr()
597  * the client cannot read from the keyboard.
622 /* read one byte from the keyboard if it's allowed */
646 /* read char from the keyboard */
666 	/* see if there is something in the keyboard port */  in atkbd_read_char()
788 			/* the following 3 are only used on the MS "Natural" keyboard */  in atkbd_read_char()
813 		 * The pause/break key on the 101 keyboard produces:  in atkbd_read_char()
953 	case KDGKBMODE:		/* get keyboard mode */  in atkbd_ioctl()
963 	case KDSKBMODE:		/* set keyboard mode */  in atkbd_ioctl()
985 	case KDGETLED:		/* get keyboard LED */  in atkbd_ioctl()
995 	case KDSETLED:		/* set keyboard LED */  in atkbd_ioctl()
1048 	case KDSETREPEAT:	/* set keyboard repeat rate (new interface) */  in atkbd_ioctl()
1072 	case KDSETRAD:		/* set keyboard repeat rate (old interface) */  in atkbd_ioctl()
1088 	case PIO_KEYMAP:	/* set keyboard translation table */  in atkbd_ioctl()
1089 	case PIO_KEYMAPENT:	/* set keyboard translation table entry */  in atkbd_ioctl()
1092 	case OPIO_KEYMAP:	/* set keyboard translation table (compat) */  in atkbd_ioctl()
1106 /* lock the access to the keyboard */
1113 /* clear the internal state of the keyboard */
1174 	/* reset keyboard hardware */  in atkbd_reset()
1177 		 * KEYBOARD ERROR  in atkbd_reset()
1178 		 * Keyboard reset may fail either because the keyboard  in atkbd_reset()
1179 		 * doen't exist, or because the keyboard doesn't pass  in atkbd_reset()
1180 		 * the self-test, or the keyboard controller on the  in atkbd_reset()
1181 		 * motherboard and the keyboard somehow fail to shake hands.  in atkbd_reset()
1183 		 * that the keyboard controller may be left in a hung state.  in atkbd_reset()
1185 		 * the keyboard controller back (I don't know why and how,  in atkbd_reset()
1192 		 * We could disable the keyboard port and interrupt... but,   in atkbd_reset()
1193 		 * the keyboard may still exist (see above).   in atkbd_reset()
1198 			printf("atkbd: failed to reset the keyboard.\n");  in atkbd_reset()
1252 	/* enable the keyboard port, but disable the keyboard intr. */  in get_kbd_echo()
1266 	/* enable the keyboard port and intr. */  in get_kbd_echo()
1270 		 * This is serious; the keyboard intr is left disabled!   in get_kbd_echo()
1294 	/* temporarily block data transmission from the keyboard */  in probe_keyboard()
1300 	/* save the current keyboard controller command byte */  in probe_keyboard()
1311 	 * The keyboard may have been screwed up by the boot block.  in probe_keyboard()
1313 	 * and the keyboard port. The controller command byte needs to be  in probe_keyboard()
1324 	 * Even if the keyboard doesn't seem to be present (err != 0),  in probe_keyboard()
1325 	 * we shall enable the keyboard port and interrupt so that  in probe_keyboard()
1326 	 * the driver will be operable when the keyboard is attached  in probe_keyboard()
1328 	 * the AT keyboard, but many people do so...  in probe_keyboard()
1359 	/* temporarily block data transmission from the keyboard */  in init_keyboard()
1375 	/* override the keyboard lock switch */  in init_keyboard()
1379 	/* enable the keyboard port, but disable the keyboard intr. */  in init_keyboard()
1394 	 * Check if we have an XT keyboard before we attempt to reset it.   in init_keyboard()
1395 	 * The procedure assumes that the keyboard and the controller have   in init_keyboard()
1401 		/* the user says there is a XT keyboard */  in init_keyboard()
1428 	case -1:	/* AT 84 keyboard doesn't return ID */  in init_keyboard()
1435 		printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type);  in init_keyboard()
1455 			 * KEYBOARD ERROR   in init_keyboard()
1462 			printf("atkbd: unable to set the XT keyboard mode.\n");  in init_keyboard()
1478 	/* enable the keyboard port and intr. */  in init_keyboard()
1486 		 * keyboard intr.   in init_keyboard()
1492 		printf("atkbd: unable to enable the keyboard port and intr.\n");  in init_keyboard()
1505 	/* prevent the timeout routine from polling the keyboard */  in write_kbd()
1509 	/* disable the keyboard and mouse interrupt */  in write_kbd()
1524 	 * Now that the keyboard controller is told not to generate   in write_kbd()
1525 	 * the keyboard and mouse interrupts, call `splx()' to allow   in write_kbd()