1151 lines
30 KiB
C
1151 lines
30 KiB
C
/*
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* AT and PS/2 keyboard driver
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*
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* Copyright (c) 1999-2002 Vojtech Pavlik
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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/*
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* This driver can handle standard AT keyboards and PS/2 keyboards in
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* Translated and Raw Set 2 and Set 3, as well as AT keyboards on dumb
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* input-only controllers and AT keyboards connected over a one way RS232
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* converter.
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*/
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/serio.h>
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#include <linux/workqueue.h>
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#include <linux/libps2.h>
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#define DRIVER_DESC "AT and PS/2 keyboard driver"
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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static int atkbd_set = 2;
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module_param_named(set, atkbd_set, int, 0);
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MODULE_PARM_DESC(set, "Select keyboard code set (2 = default, 3 = PS/2 native)");
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#if defined(__i386__) || defined(__x86_64__) || defined(__hppa__)
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static int atkbd_reset;
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#else
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static int atkbd_reset = 1;
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#endif
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module_param_named(reset, atkbd_reset, bool, 0);
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MODULE_PARM_DESC(reset, "Reset keyboard during initialization");
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static int atkbd_softrepeat;
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module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
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MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
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static int atkbd_softraw = 1;
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module_param_named(softraw, atkbd_softraw, bool, 0);
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MODULE_PARM_DESC(softraw, "Use software generated rawmode");
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static int atkbd_scroll = 0;
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module_param_named(scroll, atkbd_scroll, bool, 0);
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MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards");
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static int atkbd_extra;
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module_param_named(extra, atkbd_extra, bool, 0);
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MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards");
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__obsolete_setup("atkbd_set=");
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__obsolete_setup("atkbd_reset");
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__obsolete_setup("atkbd_softrepeat=");
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/*
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* Scancode to keycode tables. These are just the default setting, and
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* are loadable via an userland utility.
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*/
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static unsigned char atkbd_set2_keycode[512] = {
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#ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
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/* XXX: need a more general approach */
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#include "hpps2atkbd.h" /* include the keyboard scancodes */
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#else
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0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
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0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
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0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
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0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
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0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
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0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
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0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
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82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
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173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
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159, 0,115, 0,164, 0, 0,116,158, 0,150,166, 0, 0, 0,142,
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157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
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226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
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110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
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0, 0, 0, 65, 99,
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#endif
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};
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static unsigned char atkbd_set3_keycode[512] = {
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0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
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131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
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134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
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136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
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125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
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113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
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108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
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82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
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184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
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0,139,150,163,165,115,152,150,166,140,160,154,113,114,167,168,
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148,149,147,140
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};
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static unsigned char atkbd_unxlate_table[128] = {
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0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
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21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
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35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
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50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
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11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
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114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
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71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
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19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
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};
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#define ATKBD_CMD_SETLEDS 0x10ed
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#define ATKBD_CMD_GSCANSET 0x11f0
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#define ATKBD_CMD_SSCANSET 0x10f0
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#define ATKBD_CMD_GETID 0x02f2
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#define ATKBD_CMD_SETREP 0x10f3
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#define ATKBD_CMD_ENABLE 0x00f4
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#define ATKBD_CMD_RESET_DIS 0x00f5
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#define ATKBD_CMD_SETALL_MBR 0x00fa
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#define ATKBD_CMD_RESET_BAT 0x02ff
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#define ATKBD_CMD_RESEND 0x00fe
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#define ATKBD_CMD_EX_ENABLE 0x10ea
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#define ATKBD_CMD_EX_SETLEDS 0x20eb
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#define ATKBD_CMD_OK_GETID 0x02e8
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#define ATKBD_RET_ACK 0xfa
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#define ATKBD_RET_NAK 0xfe
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#define ATKBD_RET_BAT 0xaa
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#define ATKBD_RET_EMUL0 0xe0
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#define ATKBD_RET_EMUL1 0xe1
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#define ATKBD_RET_RELEASE 0xf0
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#define ATKBD_RET_HANGUEL 0xf1
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#define ATKBD_RET_HANJA 0xf2
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#define ATKBD_RET_ERR 0xff
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#define ATKBD_KEY_UNKNOWN 0
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#define ATKBD_KEY_NULL 255
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#define ATKBD_SCR_1 254
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#define ATKBD_SCR_2 253
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#define ATKBD_SCR_4 252
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#define ATKBD_SCR_8 251
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#define ATKBD_SCR_CLICK 250
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#define ATKBD_SCR_LEFT 249
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#define ATKBD_SCR_RIGHT 248
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#define ATKBD_SPECIAL 248
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static struct {
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unsigned char keycode;
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unsigned char set2;
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} atkbd_scroll_keys[] = {
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{ ATKBD_SCR_1, 0xc5 },
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{ ATKBD_SCR_2, 0x9d },
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{ ATKBD_SCR_4, 0xa4 },
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{ ATKBD_SCR_8, 0x9b },
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{ ATKBD_SCR_CLICK, 0xe0 },
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{ ATKBD_SCR_LEFT, 0xcb },
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{ ATKBD_SCR_RIGHT, 0xd2 },
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};
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/*
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* The atkbd control structure
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*/
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struct atkbd {
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struct ps2dev ps2dev;
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/* Written only during init */
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char name[64];
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char phys[32];
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struct input_dev dev;
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unsigned short id;
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unsigned char keycode[512];
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unsigned char set;
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unsigned char translated;
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unsigned char extra;
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unsigned char write;
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unsigned char softrepeat;
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unsigned char softraw;
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unsigned char scroll;
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unsigned char enabled;
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/* Accessed only from interrupt */
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unsigned char emul;
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unsigned char resend;
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unsigned char release;
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unsigned char bat_xl;
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unsigned int last;
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unsigned long time;
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};
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static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
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ssize_t (*handler)(struct atkbd *, char *));
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static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
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ssize_t (*handler)(struct atkbd *, const char *, size_t));
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#define ATKBD_DEFINE_ATTR(_name) \
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static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
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static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
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static ssize_t atkbd_do_show_##_name(struct device *d, struct device_attribute *attr, char *b) \
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{ \
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return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
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} \
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static ssize_t atkbd_do_set_##_name(struct device *d, struct device_attribute *attr, const char *b, size_t s) \
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{ \
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return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
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} \
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static struct device_attribute atkbd_attr_##_name = \
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__ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
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ATKBD_DEFINE_ATTR(extra);
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ATKBD_DEFINE_ATTR(scroll);
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ATKBD_DEFINE_ATTR(set);
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ATKBD_DEFINE_ATTR(softrepeat);
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ATKBD_DEFINE_ATTR(softraw);
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static void atkbd_report_key(struct input_dev *dev, struct pt_regs *regs, int code, int value)
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{
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input_regs(dev, regs);
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if (value == 3) {
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input_report_key(dev, code, 1);
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input_sync(dev);
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input_report_key(dev, code, 0);
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} else
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input_event(dev, EV_KEY, code, value);
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input_sync(dev);
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}
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/*
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* atkbd_interrupt(). Here takes place processing of data received from
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* the keyboard into events.
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*/
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static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
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unsigned int flags, struct pt_regs *regs)
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{
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struct atkbd *atkbd = serio_get_drvdata(serio);
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unsigned int code = data;
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int scroll = 0, hscroll = 0, click = -1;
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int value;
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#ifdef ATKBD_DEBUG
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printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
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#endif
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#if !defined(__i386__) && !defined (__x86_64__)
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if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
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printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
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serio_write(serio, ATKBD_CMD_RESEND);
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atkbd->resend = 1;
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goto out;
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}
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if (!flags && data == ATKBD_RET_ACK)
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atkbd->resend = 0;
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#endif
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if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
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if (ps2_handle_ack(&atkbd->ps2dev, data))
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goto out;
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if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
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if (ps2_handle_response(&atkbd->ps2dev, data))
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goto out;
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if (!atkbd->enabled)
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goto out;
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input_event(&atkbd->dev, EV_MSC, MSC_RAW, code);
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if (atkbd->translated) {
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if (atkbd->emul ||
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!(code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1 ||
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code == ATKBD_RET_HANGUEL || code == ATKBD_RET_HANJA ||
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code == ATKBD_RET_ERR ||
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(code == ATKBD_RET_BAT && !atkbd->bat_xl))) {
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atkbd->release = code >> 7;
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code &= 0x7f;
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}
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if (!atkbd->emul &&
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(code & 0x7f) == (ATKBD_RET_BAT & 0x7f))
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atkbd->bat_xl = !atkbd->release;
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}
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switch (code) {
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case ATKBD_RET_BAT:
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atkbd->enabled = 0;
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serio_rescan(atkbd->ps2dev.serio);
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goto out;
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case ATKBD_RET_EMUL0:
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atkbd->emul = 1;
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goto out;
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case ATKBD_RET_EMUL1:
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atkbd->emul = 2;
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goto out;
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case ATKBD_RET_RELEASE:
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atkbd->release = 1;
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goto out;
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case ATKBD_RET_HANGUEL:
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atkbd_report_key(&atkbd->dev, regs, KEY_HANGUEL, 3);
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goto out;
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case ATKBD_RET_HANJA:
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atkbd_report_key(&atkbd->dev, regs, KEY_HANJA, 3);
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goto out;
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case ATKBD_RET_ERR:
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printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
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goto out;
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}
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if (atkbd->set != 3)
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code = (code & 0x7f) | ((code & 0x80) << 1);
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if (atkbd->emul) {
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if (--atkbd->emul)
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goto out;
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code |= (atkbd->set != 3) ? 0x80 : 0x100;
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}
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if (atkbd->keycode[code] != ATKBD_KEY_NULL)
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input_event(&atkbd->dev, EV_MSC, MSC_SCAN, code);
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switch (atkbd->keycode[code]) {
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case ATKBD_KEY_NULL:
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break;
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case ATKBD_KEY_UNKNOWN:
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if (data == ATKBD_RET_ACK || data == ATKBD_RET_NAK) {
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printk(KERN_WARNING "atkbd.c: Spurious %s on %s. Some program, "
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"like XFree86, might be trying access hardware directly.\n",
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data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
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} else {
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printk(KERN_WARNING "atkbd.c: Unknown key %s "
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"(%s set %d, code %#x on %s).\n",
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atkbd->release ? "released" : "pressed",
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atkbd->translated ? "translated" : "raw",
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atkbd->set, code, serio->phys);
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printk(KERN_WARNING "atkbd.c: Use 'setkeycodes %s%02x <keycode>' "
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"to make it known.\n",
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code & 0x80 ? "e0" : "", code & 0x7f);
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}
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input_sync(&atkbd->dev);
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break;
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case ATKBD_SCR_1:
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scroll = 1 - atkbd->release * 2;
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break;
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case ATKBD_SCR_2:
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scroll = 2 - atkbd->release * 4;
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break;
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case ATKBD_SCR_4:
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scroll = 4 - atkbd->release * 8;
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break;
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case ATKBD_SCR_8:
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scroll = 8 - atkbd->release * 16;
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break;
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case ATKBD_SCR_CLICK:
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click = !atkbd->release;
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break;
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case ATKBD_SCR_LEFT:
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hscroll = -1;
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break;
|
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case ATKBD_SCR_RIGHT:
|
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hscroll = 1;
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break;
|
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default:
|
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value = atkbd->release ? 0 :
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(1 + (!atkbd->softrepeat && test_bit(atkbd->keycode[code], atkbd->dev.key)));
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|
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switch (value) { /* Workaround Toshiba laptop multiple keypress */
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case 0:
|
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atkbd->last = 0;
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break;
|
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case 1:
|
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atkbd->last = code;
|
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atkbd->time = jiffies + msecs_to_jiffies(atkbd->dev.rep[REP_DELAY]) / 2;
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break;
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case 2:
|
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if (!time_after(jiffies, atkbd->time) && atkbd->last == code)
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value = 1;
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break;
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}
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atkbd_report_key(&atkbd->dev, regs, atkbd->keycode[code], value);
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}
|
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|
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if (atkbd->scroll) {
|
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input_regs(&atkbd->dev, regs);
|
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if (click != -1)
|
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input_report_key(&atkbd->dev, BTN_MIDDLE, click);
|
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input_report_rel(&atkbd->dev, REL_WHEEL, scroll);
|
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input_report_rel(&atkbd->dev, REL_HWHEEL, hscroll);
|
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input_sync(&atkbd->dev);
|
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}
|
|
|
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atkbd->release = 0;
|
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out:
|
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return IRQ_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* Event callback from the input module. Events that change the state of
|
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* the hardware are processed here.
|
|
*/
|
|
|
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static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
|
|
{
|
|
struct atkbd *atkbd = dev->private;
|
|
const short period[32] =
|
|
{ 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
|
|
133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
|
|
const short delay[4] =
|
|
{ 250, 500, 750, 1000 };
|
|
unsigned char param[2];
|
|
int i, j;
|
|
|
|
if (!atkbd->write)
|
|
return -1;
|
|
|
|
switch (type) {
|
|
|
|
case EV_LED:
|
|
|
|
param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
|
|
| (test_bit(LED_NUML, dev->led) ? 2 : 0)
|
|
| (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
|
|
ps2_schedule_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS);
|
|
|
|
if (atkbd->extra) {
|
|
param[0] = 0;
|
|
param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
|
|
| (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
|
|
| (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
|
|
| (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
|
|
| (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
|
|
ps2_schedule_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS);
|
|
}
|
|
|
|
return 0;
|
|
|
|
|
|
case EV_REP:
|
|
|
|
if (atkbd->softrepeat) return 0;
|
|
|
|
i = j = 0;
|
|
while (i < 31 && period[i] < dev->rep[REP_PERIOD])
|
|
i++;
|
|
while (j < 3 && delay[j] < dev->rep[REP_DELAY])
|
|
j++;
|
|
dev->rep[REP_PERIOD] = period[i];
|
|
dev->rep[REP_DELAY] = delay[j];
|
|
param[0] = i | (j << 5);
|
|
ps2_schedule_command(&atkbd->ps2dev, param, ATKBD_CMD_SETREP);
|
|
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* atkbd_enable() signals that interrupt handler is allowed to
|
|
* generate input events.
|
|
*/
|
|
|
|
static inline void atkbd_enable(struct atkbd *atkbd)
|
|
{
|
|
serio_pause_rx(atkbd->ps2dev.serio);
|
|
atkbd->enabled = 1;
|
|
serio_continue_rx(atkbd->ps2dev.serio);
|
|
}
|
|
|
|
/*
|
|
* atkbd_disable() tells input handler that all incoming data except
|
|
* for ACKs and command response should be dropped.
|
|
*/
|
|
|
|
static inline void atkbd_disable(struct atkbd *atkbd)
|
|
{
|
|
serio_pause_rx(atkbd->ps2dev.serio);
|
|
atkbd->enabled = 0;
|
|
serio_continue_rx(atkbd->ps2dev.serio);
|
|
}
|
|
|
|
/*
|
|
* atkbd_probe() probes for an AT keyboard on a serio port.
|
|
*/
|
|
|
|
static int atkbd_probe(struct atkbd *atkbd)
|
|
{
|
|
struct ps2dev *ps2dev = &atkbd->ps2dev;
|
|
unsigned char param[2];
|
|
|
|
/*
|
|
* Some systems, where the bit-twiddling when testing the io-lines of the
|
|
* controller may confuse the keyboard need a full reset of the keyboard. On
|
|
* these systems the BIOS also usually doesn't do it for us.
|
|
*/
|
|
|
|
if (atkbd_reset)
|
|
if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
|
|
printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys);
|
|
|
|
/*
|
|
* Then we check the keyboard ID. We should get 0xab83 under normal conditions.
|
|
* Some keyboards report different values, but the first byte is always 0xab or
|
|
* 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
|
|
* should make sure we don't try to set the LEDs on it.
|
|
*/
|
|
|
|
param[0] = param[1] = 0xa5; /* initialize with invalid values */
|
|
if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
|
|
|
|
/*
|
|
* If the get ID command failed, we check if we can at least set the LEDs on
|
|
* the keyboard. This should work on every keyboard out there. It also turns
|
|
* the LEDs off, which we want anyway.
|
|
*/
|
|
param[0] = 0;
|
|
if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
|
|
return -1;
|
|
atkbd->id = 0xabba;
|
|
return 0;
|
|
}
|
|
|
|
if (param[0] != 0xab && param[0] != 0xac && /* Regular and NCD Sun keyboards */
|
|
param[0] != 0x2b && param[0] != 0x5d && /* Trust keyboard, raw and translated */
|
|
param[0] != 0x60 && param[0] != 0x47) /* NMB SGI keyboard, raw and translated */
|
|
return -1;
|
|
|
|
atkbd->id = (param[0] << 8) | param[1];
|
|
|
|
if (atkbd->id == 0xaca1 && atkbd->translated) {
|
|
printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n");
|
|
printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* atkbd_select_set checks if a keyboard has a working Set 3 support, and
|
|
* sets it into that. Unfortunately there are keyboards that can be switched
|
|
* to Set 3, but don't work well in that (BTC Multimedia ...)
|
|
*/
|
|
|
|
static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
|
|
{
|
|
struct ps2dev *ps2dev = &atkbd->ps2dev;
|
|
unsigned char param[2];
|
|
|
|
atkbd->extra = 0;
|
|
/*
|
|
* For known special keyboards we can go ahead and set the correct set.
|
|
* We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
|
|
* IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
|
|
*/
|
|
|
|
if (atkbd->translated)
|
|
return 2;
|
|
|
|
if (atkbd->id == 0xaca1) {
|
|
param[0] = 3;
|
|
ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
|
|
return 3;
|
|
}
|
|
|
|
if (allow_extra) {
|
|
param[0] = 0x71;
|
|
if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
|
|
atkbd->extra = 1;
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
if (target_set != 3)
|
|
return 2;
|
|
|
|
if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
|
|
atkbd->id = param[0] << 8 | param[1];
|
|
return 2;
|
|
}
|
|
|
|
param[0] = 3;
|
|
if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
|
|
return 2;
|
|
|
|
param[0] = 0;
|
|
if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
|
|
return 2;
|
|
|
|
if (param[0] != 3) {
|
|
param[0] = 2;
|
|
if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
|
|
return 2;
|
|
}
|
|
|
|
ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
|
|
|
|
return 3;
|
|
}
|
|
|
|
static int atkbd_activate(struct atkbd *atkbd)
|
|
{
|
|
struct ps2dev *ps2dev = &atkbd->ps2dev;
|
|
unsigned char param[1];
|
|
|
|
/*
|
|
* Set the LEDs to a defined state.
|
|
*/
|
|
|
|
param[0] = 0;
|
|
if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
|
|
return -1;
|
|
|
|
/*
|
|
* Set autorepeat to fastest possible.
|
|
*/
|
|
|
|
param[0] = 0;
|
|
if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
|
|
return -1;
|
|
|
|
/*
|
|
* Enable the keyboard to receive keystrokes.
|
|
*/
|
|
|
|
if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
|
|
printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
|
|
ps2dev->serio->phys);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
|
|
* reboot.
|
|
*/
|
|
|
|
static void atkbd_cleanup(struct serio *serio)
|
|
{
|
|
struct atkbd *atkbd = serio_get_drvdata(serio);
|
|
ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
|
|
}
|
|
|
|
|
|
/*
|
|
* atkbd_disconnect() closes and frees.
|
|
*/
|
|
|
|
static void atkbd_disconnect(struct serio *serio)
|
|
{
|
|
struct atkbd *atkbd = serio_get_drvdata(serio);
|
|
|
|
atkbd_disable(atkbd);
|
|
|
|
/* make sure we don't have a command in flight */
|
|
synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */
|
|
flush_scheduled_work();
|
|
|
|
device_remove_file(&serio->dev, &atkbd_attr_extra);
|
|
device_remove_file(&serio->dev, &atkbd_attr_scroll);
|
|
device_remove_file(&serio->dev, &atkbd_attr_set);
|
|
device_remove_file(&serio->dev, &atkbd_attr_softrepeat);
|
|
device_remove_file(&serio->dev, &atkbd_attr_softraw);
|
|
|
|
input_unregister_device(&atkbd->dev);
|
|
serio_close(serio);
|
|
serio_set_drvdata(serio, NULL);
|
|
kfree(atkbd);
|
|
}
|
|
|
|
|
|
/*
|
|
* atkbd_set_device_attrs() initializes keyboard's keycode table
|
|
* according to the selected scancode set
|
|
*/
|
|
|
|
static void atkbd_set_keycode_table(struct atkbd *atkbd)
|
|
{
|
|
int i, j;
|
|
|
|
memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
|
|
|
|
if (atkbd->translated) {
|
|
for (i = 0; i < 128; i++) {
|
|
atkbd->keycode[i] = atkbd_set2_keycode[atkbd_unxlate_table[i]];
|
|
atkbd->keycode[i | 0x80] = atkbd_set2_keycode[atkbd_unxlate_table[i] | 0x80];
|
|
if (atkbd->scroll)
|
|
for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
|
|
if ((atkbd_unxlate_table[i] | 0x80) == atkbd_scroll_keys[j].set2)
|
|
atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
|
|
}
|
|
} else if (atkbd->set == 3) {
|
|
memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
|
|
} else {
|
|
memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
|
|
|
|
if (atkbd->scroll)
|
|
for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++)
|
|
atkbd->keycode[atkbd_scroll_keys[i].set2] = atkbd_scroll_keys[i].keycode;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* atkbd_set_device_attrs() sets up keyboard's input device structure
|
|
*/
|
|
|
|
static void atkbd_set_device_attrs(struct atkbd *atkbd)
|
|
{
|
|
int i;
|
|
|
|
memset(&atkbd->dev, 0, sizeof(struct input_dev));
|
|
|
|
init_input_dev(&atkbd->dev);
|
|
|
|
atkbd->dev.name = atkbd->name;
|
|
atkbd->dev.phys = atkbd->phys;
|
|
atkbd->dev.id.bustype = BUS_I8042;
|
|
atkbd->dev.id.vendor = 0x0001;
|
|
atkbd->dev.id.product = atkbd->translated ? 1 : atkbd->set;
|
|
atkbd->dev.id.version = atkbd->id;
|
|
atkbd->dev.event = atkbd_event;
|
|
atkbd->dev.private = atkbd;
|
|
atkbd->dev.dev = &atkbd->ps2dev.serio->dev;
|
|
|
|
atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_MSC);
|
|
|
|
if (atkbd->write) {
|
|
atkbd->dev.evbit[0] |= BIT(EV_LED);
|
|
atkbd->dev.ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
|
|
}
|
|
|
|
if (atkbd->extra)
|
|
atkbd->dev.ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) |
|
|
BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC);
|
|
|
|
if (!atkbd->softrepeat) {
|
|
atkbd->dev.rep[REP_DELAY] = 250;
|
|
atkbd->dev.rep[REP_PERIOD] = 33;
|
|
}
|
|
|
|
atkbd->dev.mscbit[0] = atkbd->softraw ? BIT(MSC_SCAN) : BIT(MSC_RAW) | BIT(MSC_SCAN);
|
|
|
|
if (atkbd->scroll) {
|
|
atkbd->dev.evbit[0] |= BIT(EV_REL);
|
|
atkbd->dev.relbit[0] = BIT(REL_WHEEL) | BIT(REL_HWHEEL);
|
|
set_bit(BTN_MIDDLE, atkbd->dev.keybit);
|
|
}
|
|
|
|
atkbd->dev.keycode = atkbd->keycode;
|
|
atkbd->dev.keycodesize = sizeof(unsigned char);
|
|
atkbd->dev.keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
|
|
|
|
for (i = 0; i < 512; i++)
|
|
if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
|
|
set_bit(atkbd->keycode[i], atkbd->dev.keybit);
|
|
}
|
|
|
|
/*
|
|
* atkbd_connect() is called when the serio module finds an interface
|
|
* that isn't handled yet by an appropriate device driver. We check if
|
|
* there is an AT keyboard out there and if yes, we register ourselves
|
|
* to the input module.
|
|
*/
|
|
|
|
static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
|
|
{
|
|
struct atkbd *atkbd;
|
|
int err;
|
|
|
|
if (!(atkbd = kmalloc(sizeof(struct atkbd), GFP_KERNEL)))
|
|
return - ENOMEM;
|
|
|
|
memset(atkbd, 0, sizeof(struct atkbd));
|
|
|
|
ps2_init(&atkbd->ps2dev, serio);
|
|
|
|
switch (serio->id.type) {
|
|
|
|
case SERIO_8042_XL:
|
|
atkbd->translated = 1;
|
|
case SERIO_8042:
|
|
if (serio->write)
|
|
atkbd->write = 1;
|
|
break;
|
|
}
|
|
|
|
atkbd->softraw = atkbd_softraw;
|
|
atkbd->softrepeat = atkbd_softrepeat;
|
|
atkbd->scroll = atkbd_scroll;
|
|
|
|
if (!atkbd->write)
|
|
atkbd->softrepeat = 1;
|
|
|
|
if (atkbd->softrepeat)
|
|
atkbd->softraw = 1;
|
|
|
|
serio_set_drvdata(serio, atkbd);
|
|
|
|
err = serio_open(serio, drv);
|
|
if (err) {
|
|
serio_set_drvdata(serio, NULL);
|
|
kfree(atkbd);
|
|
return err;
|
|
}
|
|
|
|
if (atkbd->write) {
|
|
|
|
if (atkbd_probe(atkbd)) {
|
|
serio_close(serio);
|
|
serio_set_drvdata(serio, NULL);
|
|
kfree(atkbd);
|
|
return -ENODEV;
|
|
}
|
|
|
|
atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
|
|
atkbd_activate(atkbd);
|
|
|
|
} else {
|
|
atkbd->set = 2;
|
|
atkbd->id = 0xab00;
|
|
}
|
|
|
|
if (atkbd->extra)
|
|
sprintf(atkbd->name, "AT Set 2 Extra keyboard");
|
|
else
|
|
sprintf(atkbd->name, "AT %s Set %d keyboard",
|
|
atkbd->translated ? "Translated" : "Raw", atkbd->set);
|
|
|
|
sprintf(atkbd->phys, "%s/input0", serio->phys);
|
|
|
|
atkbd_set_keycode_table(atkbd);
|
|
atkbd_set_device_attrs(atkbd);
|
|
|
|
input_register_device(&atkbd->dev);
|
|
|
|
device_create_file(&serio->dev, &atkbd_attr_extra);
|
|
device_create_file(&serio->dev, &atkbd_attr_scroll);
|
|
device_create_file(&serio->dev, &atkbd_attr_set);
|
|
device_create_file(&serio->dev, &atkbd_attr_softrepeat);
|
|
device_create_file(&serio->dev, &atkbd_attr_softraw);
|
|
|
|
atkbd_enable(atkbd);
|
|
|
|
printk(KERN_INFO "input: %s on %s\n", atkbd->name, serio->phys);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* atkbd_reconnect() tries to restore keyboard into a sane state and is
|
|
* most likely called on resume.
|
|
*/
|
|
|
|
static int atkbd_reconnect(struct serio *serio)
|
|
{
|
|
struct atkbd *atkbd = serio_get_drvdata(serio);
|
|
struct serio_driver *drv = serio->drv;
|
|
unsigned char param[1];
|
|
|
|
if (!atkbd || !drv) {
|
|
printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
|
|
return -1;
|
|
}
|
|
|
|
atkbd_disable(atkbd);
|
|
|
|
if (atkbd->write) {
|
|
param[0] = (test_bit(LED_SCROLLL, atkbd->dev.led) ? 1 : 0)
|
|
| (test_bit(LED_NUML, atkbd->dev.led) ? 2 : 0)
|
|
| (test_bit(LED_CAPSL, atkbd->dev.led) ? 4 : 0);
|
|
|
|
if (atkbd_probe(atkbd))
|
|
return -1;
|
|
if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
|
|
return -1;
|
|
|
|
atkbd_activate(atkbd);
|
|
|
|
if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
|
|
return -1;
|
|
}
|
|
|
|
atkbd_enable(atkbd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct serio_device_id atkbd_serio_ids[] = {
|
|
{
|
|
.type = SERIO_8042,
|
|
.proto = SERIO_ANY,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{
|
|
.type = SERIO_8042_XL,
|
|
.proto = SERIO_ANY,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{
|
|
.type = SERIO_RS232,
|
|
.proto = SERIO_PS2SER,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{ 0 }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
|
|
|
|
static struct serio_driver atkbd_drv = {
|
|
.driver = {
|
|
.name = "atkbd",
|
|
},
|
|
.description = DRIVER_DESC,
|
|
.id_table = atkbd_serio_ids,
|
|
.interrupt = atkbd_interrupt,
|
|
.connect = atkbd_connect,
|
|
.reconnect = atkbd_reconnect,
|
|
.disconnect = atkbd_disconnect,
|
|
.cleanup = atkbd_cleanup,
|
|
};
|
|
|
|
static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
|
|
ssize_t (*handler)(struct atkbd *, char *))
|
|
{
|
|
struct serio *serio = to_serio_port(dev);
|
|
int retval;
|
|
|
|
retval = serio_pin_driver(serio);
|
|
if (retval)
|
|
return retval;
|
|
|
|
if (serio->drv != &atkbd_drv) {
|
|
retval = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
|
|
|
|
out:
|
|
serio_unpin_driver(serio);
|
|
return retval;
|
|
}
|
|
|
|
static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
|
|
ssize_t (*handler)(struct atkbd *, const char *, size_t))
|
|
{
|
|
struct serio *serio = to_serio_port(dev);
|
|
struct atkbd *atkbd;
|
|
int retval;
|
|
|
|
retval = serio_pin_driver(serio);
|
|
if (retval)
|
|
return retval;
|
|
|
|
if (serio->drv != &atkbd_drv) {
|
|
retval = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
atkbd = serio_get_drvdata(serio);
|
|
atkbd_disable(atkbd);
|
|
retval = handler(atkbd, buf, count);
|
|
atkbd_enable(atkbd);
|
|
|
|
out:
|
|
serio_unpin_driver(serio);
|
|
return retval;
|
|
}
|
|
|
|
static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
|
|
}
|
|
|
|
static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
|
|
{
|
|
unsigned long value;
|
|
char *rest;
|
|
|
|
if (!atkbd->write)
|
|
return -EIO;
|
|
|
|
value = simple_strtoul(buf, &rest, 10);
|
|
if (*rest || value > 1)
|
|
return -EINVAL;
|
|
|
|
if (atkbd->extra != value) {
|
|
/* unregister device as it's properties will change */
|
|
input_unregister_device(&atkbd->dev);
|
|
atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
|
|
atkbd_activate(atkbd);
|
|
atkbd_set_device_attrs(atkbd);
|
|
input_register_device(&atkbd->dev);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
|
|
}
|
|
|
|
static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
|
|
{
|
|
unsigned long value;
|
|
char *rest;
|
|
|
|
value = simple_strtoul(buf, &rest, 10);
|
|
if (*rest || value > 1)
|
|
return -EINVAL;
|
|
|
|
if (atkbd->scroll != value) {
|
|
/* unregister device as it's properties will change */
|
|
input_unregister_device(&atkbd->dev);
|
|
atkbd->scroll = value;
|
|
atkbd_set_keycode_table(atkbd);
|
|
atkbd_set_device_attrs(atkbd);
|
|
input_register_device(&atkbd->dev);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", atkbd->set);
|
|
}
|
|
|
|
static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
|
|
{
|
|
unsigned long value;
|
|
char *rest;
|
|
|
|
if (!atkbd->write)
|
|
return -EIO;
|
|
|
|
value = simple_strtoul(buf, &rest, 10);
|
|
if (*rest || (value != 2 && value != 3))
|
|
return -EINVAL;
|
|
|
|
if (atkbd->set != value) {
|
|
/* unregister device as it's properties will change */
|
|
input_unregister_device(&atkbd->dev);
|
|
atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
|
|
atkbd_activate(atkbd);
|
|
atkbd_set_keycode_table(atkbd);
|
|
atkbd_set_device_attrs(atkbd);
|
|
input_register_device(&atkbd->dev);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
|
|
}
|
|
|
|
static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
|
|
{
|
|
unsigned long value;
|
|
char *rest;
|
|
|
|
if (!atkbd->write)
|
|
return -EIO;
|
|
|
|
value = simple_strtoul(buf, &rest, 10);
|
|
if (*rest || value > 1)
|
|
return -EINVAL;
|
|
|
|
if (atkbd->softrepeat != value) {
|
|
/* unregister device as it's properties will change */
|
|
input_unregister_device(&atkbd->dev);
|
|
atkbd->softrepeat = value;
|
|
if (atkbd->softrepeat)
|
|
atkbd->softraw = 1;
|
|
atkbd_set_device_attrs(atkbd);
|
|
input_register_device(&atkbd->dev);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
|
|
static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
|
|
}
|
|
|
|
static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
|
|
{
|
|
unsigned long value;
|
|
char *rest;
|
|
|
|
value = simple_strtoul(buf, &rest, 10);
|
|
if (*rest || value > 1)
|
|
return -EINVAL;
|
|
|
|
if (atkbd->softraw != value) {
|
|
/* unregister device as it's properties will change */
|
|
input_unregister_device(&atkbd->dev);
|
|
atkbd->softraw = value;
|
|
atkbd_set_device_attrs(atkbd);
|
|
input_register_device(&atkbd->dev);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
|
|
static int __init atkbd_init(void)
|
|
{
|
|
serio_register_driver(&atkbd_drv);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit atkbd_exit(void)
|
|
{
|
|
serio_unregister_driver(&atkbd_drv);
|
|
}
|
|
|
|
module_init(atkbd_init);
|
|
module_exit(atkbd_exit);
|