| /* |
| * 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; |
| } |
| |