m68k/atari/atakeyb.c

2  * Atari Keyboard driver for 680x0 Linux
17 #include <linux/module.h>
18 #include <linux/sched.h>
19 #include <linux/kernel.h>
20 #include <linux/interrupt.h>
21 #include <linux/errno.h>
22 #include <linux/keyboard.h>
23 #include <linux/delay.h>
24 #include <linux/timer.h>
25 #include <linux/kd.h>
26 #include <linux/random.h>
27 #include <linux/init.h>
28 #include <linux/kbd_kern.h>
60  *  - The Alt (= Meta) key works in combination with Shift and
61  *    Control, e.g. Alt+Shift+a sends Meta-A (0xc1), Alt+Control+A sends
62  *    Meta-Ctrl-A (0x81) ...
64  *  - The parentheses on the keypad send '(' and ')' with all
68  *  - HELP and UNDO are mapped to be F21 and F24, resp, that send the
69  *    codes "\E[M" and "\E[P". (This is better than the old mapping to
70  *    F11 and F12, because these codes are on Shift+F1/2 anyway.) This
75  *  - Console switching is done with Alt+Fx (consoles 1..10) and
78  *  - The misc. special function implemented in the kernel are mapped
81  *      ClrHome          -> Home/Find
82  *      Shift + ClrHome  -> End/Select
83  *      Shift + Up       -> Page Up
84  *      Shift + Down     -> Page Down
85  *      Alt + Help       -> show system status
86  *      Shift + Help     -> show memory info
87  *      Ctrl + Help      -> show registers
88  *      Ctrl + Alt + Del -> Reboot
89  *      Alt + Undo       -> switch to last console
90  *      Shift + Undo     -> send interrupt
91  *      Alt + Insert     -> stop/start output (same as ^S/^Q)
92  *      Alt + Up         -> Scroll back console (if implemented)
93  *      Alt + Down       -> Scroll forward console (if implemented)
94  *      Alt + CapsLock   -> NumLock
98  *  - Help mapped to K_HELP
99  *  - Undo mapped to K_UNDO (= K_F246)
100  *  - Keypad Left/Right Parenthesis mapped to new K_PPAREN[LR]
123  * one that really looks like a key event (0x04..0xf2) or the start of a mouse
125  * speeds up the resynchronization of the event structure, even if maybe a
204 				/* during self-test, note that 0xf1 received */  in atari_keyboard_interrupt()
216 					/* Scancodes sent during the self-test stand for broken  in atari_keyboard_interrupt()
219 					 * make codes instead. Therefore, simply ignore  in atari_keyboard_interrupt()
226 					/* new Linux scancodes; approx. */  in atari_keyboard_interrupt()
228 					keytyp = KTYP(keyval) - 0xf0;  in atari_keyboard_interrupt()
238 					pr_cont("is broken -- will be ignored.\n");  in atari_keyboard_interrupt()
280 				   But will this ever be used, as Linux keeps its own time.  in atari_keyboard_interrupt()
291 			kb_state.len--;  in atari_keyboard_interrupt()
329 			len--;  in ikbd_write()
342 	 * if all's well code 0xF1 is returned, else the break codes of  in ikbd_reset()
441 /* Set joystick event reporting */
478 /* some joystick routines not in yet (0x18-0x19) */
550 	 * self-test is finished */  in atari_keyb_init()