Viewing file:  amikeyb.c (13.46 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
* linux/arch/m68k/amiga/amikeyb.c
*
* Amiga Keyboard driver for Linux/m68k
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
/*
* Amiga support by Hamish Macdonald
*/
#include <linux/config.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
#include <linux/keyboard.h>
#include <linux/kd.h>
#include <linux/kbd_ll.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/random.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/kbd_kern.h>
#include <asm/amigaints.h>
#include <asm/amigahw.h>
#include <asm/irq.h>
#define AMIKEY_CAPS (0x62)
#define BREAK_MASK (0x80)
#define RESET_WARNING (0xf0) /* before rotation */
static u_short amiplain_map[NR_KEYS] __initdata = {
0xf060, 0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036, 0xf037,
0xf038, 0xf039, 0xf030, 0xf02d, 0xf03d, 0xf05c, 0xf200, 0xf300,
0xfb71, 0xfb77, 0xfb65, 0xfb72, 0xfb74, 0xfb79, 0xfb75, 0xfb69,
0xfb6f, 0xfb70, 0xf05b, 0xf05d, 0xf200, 0xf301, 0xf302, 0xf303,
0xfb61, 0xfb73, 0xfb64, 0xfb66, 0xfb67, 0xfb68, 0xfb6a, 0xfb6b,
0xfb6c, 0xf03b, 0xf027, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
0xf200, 0xfb7a, 0xfb78, 0xfb63, 0xfb76, 0xfb62, 0xfb6e, 0xfb6d,
0xf02c, 0xf02e, 0xf02f, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
0xf020, 0xf07f, 0xf009, 0xf30e, 0xf201, 0xf01b, 0xf07f, 0xf200,
0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
0xf100, 0xf101, 0xf102, 0xf103, 0xf104, 0xf105, 0xf106, 0xf107,
0xf108, 0xf109, 0xf312, 0xf313, 0xf30d, 0xf30c, 0xf30a, 0xf11b,
0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
};
static u_short amishift_map[NR_KEYS] __initdata = {
0xf07e, 0xf021, 0xf040, 0xf023, 0xf024, 0xf025, 0xf05e, 0xf026,
0xf02a, 0xf028, 0xf029, 0xf05f, 0xf02b, 0xf07c, 0xf200, 0xf300,
0xfb51, 0xfb57, 0xfb45, 0xfb52, 0xfb54, 0xfb59, 0xfb55, 0xfb49,
0xfb4f, 0xfb50, 0xf07b, 0xf07d, 0xf200, 0xf301, 0xf302, 0xf303,
0xfb41, 0xfb53, 0xfb44, 0xfb46, 0xfb47, 0xfb48, 0xfb4a, 0xfb4b,
0xfb4c, 0xf03a, 0xf022, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
0xf200, 0xfb5a, 0xfb58, 0xfb43, 0xfb56, 0xfb42, 0xfb4e, 0xfb4d,
0xf03c, 0xf03e, 0xf03f, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
0xf020, 0xf07f, 0xf009, 0xf30e, 0xf201, 0xf01b, 0xf07f, 0xf200,
0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
0xf10a, 0xf10b, 0xf10c, 0xf10d, 0xf10e, 0xf10f, 0xf110, 0xf111,
0xf112, 0xf113, 0xf208, 0xf209, 0xf30d, 0xf30c, 0xf30a, 0xf203,
0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
};
static u_short amialtgr_map[NR_KEYS] __initdata = {
0xf200, 0xf200, 0xf040, 0xf200, 0xf024, 0xf200, 0xf200, 0xf07b,
0xf05b, 0xf05d, 0xf07d, 0xf05c, 0xf200, 0xf200, 0xf200, 0xf300,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf07e, 0xf200, 0xf301, 0xf302, 0xf303,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
0xf200, 0xf07f, 0xf200, 0xf30e, 0xf201, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
0xf50c, 0xf50d, 0xf50e, 0xf50f, 0xf510, 0xf511, 0xf512, 0xf513,
0xf514, 0xf515, 0xf208, 0xf209, 0xf30d, 0xf30c, 0xf30a, 0xf204,
0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
};
static u_short amictrl_map[NR_KEYS] __initdata = {
0xf000, 0xf200, 0xf000, 0xf01b, 0xf01c, 0xf01d, 0xf01e, 0xf01f,
0xf07f, 0xf200, 0xf200, 0xf01f, 0xf200, 0xf01c, 0xf200, 0xf300,
0xf011, 0xf017, 0xf005, 0xf012, 0xf014, 0xf019, 0xf015, 0xf009,
0xf00f, 0xf010, 0xf01b, 0xf01d, 0xf200, 0xf301, 0xf302, 0xf303,
0xf001, 0xf013, 0xf004, 0xf006, 0xf007, 0xf008, 0xf00a, 0xf00b,
0xf00c, 0xf200, 0xf007, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
0xf200, 0xf01a, 0xf018, 0xf003, 0xf016, 0xf002, 0xf00e, 0xf00d,
0xf200, 0xf200, 0xf07f, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
0xf000, 0xf07f, 0xf200, 0xf30e, 0xf201, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
0xf100, 0xf101, 0xf102, 0xf103, 0xf104, 0xf105, 0xf106, 0xf107,
0xf108, 0xf109, 0xf208, 0xf209, 0xf30d, 0xf30c, 0xf30a, 0xf202,
0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
};
static u_short amishift_ctrl_map[NR_KEYS] __initdata = {
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf300,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302, 0xf303,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
0xf200, 0xf07f, 0xf200, 0xf30e, 0xf201, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf208, 0xf209, 0xf30d, 0xf30c, 0xf30a, 0xf200,
0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
};
static u_short amialt_map[NR_KEYS] __initdata = {
0xf860, 0xf831, 0xf832, 0xf833, 0xf834, 0xf835, 0xf836, 0xf837,
0xf838, 0xf839, 0xf830, 0xf82d, 0xf83d, 0xf85c, 0xf200, 0xf900,
0xf871, 0xf877, 0xf865, 0xf872, 0xf874, 0xf879, 0xf875, 0xf869,
0xf86f, 0xf870, 0xf85b, 0xf85d, 0xf200, 0xf901, 0xf902, 0xf903,
0xf861, 0xf873, 0xf864, 0xf866, 0xf867, 0xf868, 0xf86a, 0xf86b,
0xf86c, 0xf83b, 0xf827, 0xf200, 0xf200, 0xf904, 0xf905, 0xf906,
0xf200, 0xf87a, 0xf878, 0xf863, 0xf876, 0xf862, 0xf86e, 0xf86d,
0xf82c, 0xf82e, 0xf82f, 0xf200, 0xf310, 0xf907, 0xf908, 0xf909,
0xf820, 0xf87f, 0xf809, 0xf30e, 0xf80d, 0xf81b, 0xf87f, 0xf200,
0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
0xf500, 0xf501, 0xf502, 0xf503, 0xf504, 0xf505, 0xf506, 0xf507,
0xf508, 0xf509, 0xf208, 0xf209, 0xf30d, 0xf30c, 0xf30a, 0xf204,
0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
};
static u_short amictrl_alt_map[NR_KEYS] __initdata = {
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf300,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302, 0xf303,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf20c, 0xf307, 0xf308, 0xf309,
0xf200, 0xf07f, 0xf200, 0xf30e, 0xf201, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf208, 0xf209, 0xf30d, 0xf30c, 0xf30a, 0xf200,
0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
};
#define DEFAULT_KEYB_REP_DELAY (HZ/4)
#define DEFAULT_KEYB_REP_RATE (HZ/25)
/* These could be settable by some ioctl() in future... */
static unsigned int key_repeat_delay = DEFAULT_KEYB_REP_DELAY;
static unsigned int key_repeat_rate = DEFAULT_KEYB_REP_RATE;
static unsigned char rep_scancode;
static void amikeyb_rep(unsigned long ignore);
static struct timer_list amikeyb_rep_timer = {function: amikeyb_rep};
static void amikeyb_rep(unsigned long ignore)
{
unsigned long flags;
save_flags(flags);
cli();
kbd_pt_regs = NULL;
amikeyb_rep_timer.expires = jiffies + key_repeat_rate;
add_timer(&amikeyb_rep_timer);
handle_scancode(rep_scancode, 1);
restore_flags(flags);
}
static void keyboard_interrupt(int irq, void *dummy, struct pt_regs *fp)
{
unsigned char scancode, break_flag, keycode;
static int reset_warning = 0;
/* save frame for register dump */
kbd_pt_regs = fp;
/* get and invert scancode (keyboard is active low) */
scancode = ~ciaa.sdr;
/* switch SP pin to output for handshake */
ciaa.cra |= 0x40;
#if 0 /* No longer used */
/*
* On receipt of the second RESET_WARNING, we must not pull KDAT high
* again to delay the hard reset as long as possible.
*
* Note that not all keyboards send reset warnings...
*/
if (reset_warning)
if (scancode == RESET_WARNING) {
printk(KERN_ALERT "amikeyb: Ctrl-Amiga-Amiga reset warning!!\n"
"The system will be reset within 10 seconds!!\n");
/* Panic doesn't sync from within an interrupt, so we do nothing */
return;
} else
/* Probably a mistake, cancel the alert */
reset_warning = 0;
#endif
/* wait until 85 us have expired */
udelay(85);
/* switch CIA serial port to input mode */
ciaa.cra &= ~0x40;
tasklet_schedule(&keyboard_tasklet);
/* rotate scan code to get up/down bit in proper position */
scancode = ((scancode >> 1) & 0x7f) | ((scancode << 7) & 0x80);
/*
* Check make/break first
*/
break_flag = scancode & BREAK_MASK;
keycode = scancode & (unsigned char)~BREAK_MASK;
if (keycode == AMIKEY_CAPS) {
/* if the key is CAPS, fake a press/release. */
handle_scancode(AMIKEY_CAPS, 1);
handle_scancode(AMIKEY_CAPS, 0);
} else if (keycode < 0x78) {
/* handle repeat */
if (break_flag) {
del_timer(&amikeyb_rep_timer);
rep_scancode = 0;
} else {
del_timer(&amikeyb_rep_timer);
rep_scancode = keycode;
amikeyb_rep_timer.expires = jiffies + key_repeat_delay;
add_timer(&amikeyb_rep_timer);
}
handle_scancode(keycode, !break_flag);
} else
switch (keycode) {
case 0x78:
reset_warning = 1;
break;
case 0x79:
printk(KERN_WARNING "amikeyb: keyboard lost sync\n");
break;
case 0x7a:
printk(KERN_WARNING "amikeyb: keyboard buffer overflow\n");
break;
#if 0 /* obsolete according to the HRM */
case 0x7b:
printk(KERN_WARNING "amikeyb: keyboard controller failure\n");
break;
#endif
case 0x7c:
printk(KERN_ERR "amikeyb: keyboard selftest failure\n");
break;
case 0x7d:
printk(KERN_INFO "amikeyb: initiate power-up key stream\n");
break;
case 0x7e:
printk(KERN_INFO "amikeyb: terminate power-up key stream\n");
break;
#if 0 /* obsolete according to the HRM */
case 0x7f:
printk(KERN_WARNING "amikeyb: keyboard interrupt\n");
break;
#endif
default:
printk(KERN_WARNING "amikeyb: unknown keyboard communication code 0x%02x\n",
scancode);
break;
}
}
int __init amiga_keyb_init(void)
{
if (!AMIGAHW_PRESENT(AMI_KEYBOARD))
return -EIO;
if (!request_mem_region(CIAA_PHYSADDR-1+0xb00, 0x100, "amikeyb"))
return -EBUSY;
/* setup key map */
memcpy(key_maps[0], amiplain_map, sizeof(plain_map));
memcpy(key_maps[1], amishift_map, sizeof(plain_map));
memcpy(key_maps[2], amialtgr_map, sizeof(plain_map));
memcpy(key_maps[4], amictrl_map, sizeof(plain_map));
memcpy(key_maps[5], amishift_ctrl_map, sizeof(plain_map));
memcpy(key_maps[8], amialt_map, sizeof(plain_map));
memcpy(key_maps[12], amictrl_alt_map, sizeof(plain_map));
/*
* Initialize serial data direction.
*/
ciaa.cra &= ~0x41; /* serial data in, turn off TA */
/*
* arrange for processing of keyboard interrupt
*/
request_irq(IRQ_AMIGA_CIAA_SP, keyboard_interrupt, 0, "keyboard", NULL);
return 0;
}
int amiga_kbdrate( struct kbd_repeat *k )
{
if (k->delay > 0) {
/* convert from msec to jiffies */
key_repeat_delay = (k->delay * HZ + 500) / 1000;
if (key_repeat_delay < 1)
key_repeat_delay = 1;
}
if (k->rate > 0) {
key_repeat_rate = (k->rate * HZ + 500) / 1000;
if (key_repeat_rate < 1)
key_repeat_rate = 1;
}
k->delay = key_repeat_delay * 1000 / HZ;
k->rate = key_repeat_rate * 1000 / HZ;
return( 0 );
}
int amiga_kbd_translate(unsigned char keycode, unsigned char *keycodep, char raw_mode)
{
#ifdef CONFIG_MAGIC_SYSRQ
/* SHIFT+ALTGR+HELP pressed? */
if ((keycode == 0x5f) && ((shift_state & 0xff) == 3))
*keycodep = 0xff;
else
#endif
*keycodep = keycode;
return 1;
}
|