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1914 lines
47 KiB
1914 lines
47 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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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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/* |
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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/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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#include <linux/mutex.h> |
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#include <linux/dmi.h> |
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#include <linux/property.h> |
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#define DRIVER_DESC "AT and PS/2 keyboard driver" |
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MODULE_AUTHOR("Vojtech Pavlik <[email protected]>"); |
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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 bool atkbd_reset; |
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#else |
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static bool atkbd_reset = true; |
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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 bool 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 bool atkbd_softraw = true; |
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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 bool atkbd_scroll; |
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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 bool 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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static bool atkbd_terminal; |
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module_param_named(terminal, atkbd_terminal, bool, 0); |
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MODULE_PARM_DESC(terminal, "Enable break codes on an IBM Terminal keyboard connected via AT/PS2"); |
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#define MAX_FUNCTION_ROW_KEYS 24 |
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#define SCANCODE(keymap) ((keymap >> 16) & 0xFFFF) |
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#define KEYCODE(keymap) (keymap & 0xFFFF) |
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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 a userland utility. |
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*/ |
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#define ATKBD_KEYMAP_SIZE 512 |
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static const unsigned short atkbd_set2_keycode[ATKBD_KEYMAP_SIZE] = { |
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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, 0,172,166, 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 const unsigned short atkbd_set3_keycode[ATKBD_KEYMAP_SIZE] = { |
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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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0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168, |
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148,149,147,140 |
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}; |
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static const unsigned short 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 /* Reset to defaults and disable */ |
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#define ATKBD_CMD_RESET_DEF 0x00f6 /* Reset to defaults */ |
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#define ATKBD_CMD_SETALL_MB 0x00f8 /* Set all keys to give break codes */ |
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#define ATKBD_CMD_SETALL_MBR 0x00fa /* ... and repeat */ |
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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_HANJA 0xf1 |
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#define ATKBD_RET_HANGEUL 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 0xfffe |
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#define ATKBD_SCR_2 0xfffd |
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#define ATKBD_SCR_4 0xfffc |
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#define ATKBD_SCR_8 0xfffb |
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#define ATKBD_SCR_CLICK 0xfffa |
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#define ATKBD_SCR_LEFT 0xfff9 |
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#define ATKBD_SCR_RIGHT 0xfff8 |
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#define ATKBD_SPECIAL ATKBD_SCR_RIGHT |
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#define ATKBD_LED_EVENT_BIT 0 |
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#define ATKBD_REP_EVENT_BIT 1 |
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#define ATKBD_XL_ERR 0x01 |
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#define ATKBD_XL_BAT 0x02 |
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#define ATKBD_XL_ACK 0x04 |
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#define ATKBD_XL_NAK 0x08 |
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#define ATKBD_XL_HANGEUL 0x10 |
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#define ATKBD_XL_HANJA 0x20 |
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static const struct { |
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unsigned short 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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struct input_dev *dev; |
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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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unsigned short id; |
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unsigned short keycode[ATKBD_KEYMAP_SIZE]; |
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DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE); |
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unsigned char set; |
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bool translated; |
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bool extra; |
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bool write; |
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bool softrepeat; |
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bool softraw; |
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bool scroll; |
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bool enabled; |
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/* Accessed only from interrupt */ |
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unsigned char emul; |
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bool resend; |
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bool release; |
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unsigned long xl_bit; |
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unsigned int last; |
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unsigned long time; |
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unsigned long err_count; |
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struct delayed_work event_work; |
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unsigned long event_jiffies; |
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unsigned long event_mask; |
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/* Serializes reconnect(), attr->set() and event work */ |
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struct mutex mutex; |
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u32 function_row_physmap[MAX_FUNCTION_ROW_KEYS]; |
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int num_function_row_keys; |
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}; |
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/* |
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* System-specific keymap fixup routine |
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*/ |
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static void (*atkbd_platform_fixup)(struct atkbd *, const void *data); |
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static void *atkbd_platform_fixup_data; |
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static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int); |
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/* |
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* Certain keyboards to not like ATKBD_CMD_RESET_DIS and stop responding |
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* to many commands until full reset (ATKBD_CMD_RESET_BAT) is performed. |
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*/ |
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static bool atkbd_skip_deactivate; |
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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, \ |
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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, \ |
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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(force_release); |
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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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#define ATKBD_DEFINE_RO_ATTR(_name) \ |
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static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ |
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static ssize_t atkbd_do_show_##_name(struct device *d, \ |
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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 struct device_attribute atkbd_attr_##_name = \ |
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__ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL); |
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ATKBD_DEFINE_RO_ATTR(err_count); |
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ATKBD_DEFINE_RO_ATTR(function_row_physmap); |
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static struct attribute *atkbd_attributes[] = { |
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&atkbd_attr_extra.attr, |
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&atkbd_attr_force_release.attr, |
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&atkbd_attr_scroll.attr, |
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&atkbd_attr_set.attr, |
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&atkbd_attr_softrepeat.attr, |
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&atkbd_attr_softraw.attr, |
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&atkbd_attr_err_count.attr, |
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&atkbd_attr_function_row_physmap.attr, |
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NULL |
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}; |
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static ssize_t atkbd_show_function_row_physmap(struct atkbd *atkbd, char *buf) |
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{ |
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ssize_t size = 0; |
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int i; |
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if (!atkbd->num_function_row_keys) |
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return 0; |
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for (i = 0; i < atkbd->num_function_row_keys; i++) |
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size += scnprintf(buf + size, PAGE_SIZE - size, "%02X ", |
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atkbd->function_row_physmap[i]); |
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size += scnprintf(buf + size, PAGE_SIZE - size, "\n"); |
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return size; |
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} |
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static umode_t atkbd_attr_is_visible(struct kobject *kobj, |
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struct attribute *attr, int i) |
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{ |
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struct device *dev = kobj_to_dev(kobj); |
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struct serio *serio = to_serio_port(dev); |
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struct atkbd *atkbd = serio_get_drvdata(serio); |
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if (attr == &atkbd_attr_function_row_physmap.attr && |
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!atkbd->num_function_row_keys) |
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return 0; |
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return attr->mode; |
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} |
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static struct attribute_group atkbd_attribute_group = { |
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.attrs = atkbd_attributes, |
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.is_visible = atkbd_attr_is_visible, |
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}; |
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static const unsigned int xl_table[] = { |
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ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK, |
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ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL, |
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}; |
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/* |
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* Checks if we should mangle the scancode to extract 'release' bit |
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* in translated mode. |
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*/ |
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static bool atkbd_need_xlate(unsigned long xl_bit, unsigned char code) |
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{ |
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int i; |
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if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1) |
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return false; |
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for (i = 0; i < ARRAY_SIZE(xl_table); i++) |
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if (code == xl_table[i]) |
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return test_bit(i, &xl_bit); |
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return true; |
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} |
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/* |
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* Calculates new value of xl_bit so the driver can distinguish |
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* between make/break pair of scancodes for select keys and PS/2 |
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* protocol responses. |
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*/ |
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static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code) |
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{ |
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int i; |
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for (i = 0; i < ARRAY_SIZE(xl_table); i++) { |
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if (!((code ^ xl_table[i]) & 0x7f)) { |
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if (code & 0x80) |
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__clear_bit(i, &atkbd->xl_bit); |
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else |
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__set_bit(i, &atkbd->xl_bit); |
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break; |
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} |
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} |
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} |
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/* |
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* Encode the scancode, 0xe0 prefix, and high bit into a single integer, |
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* keeping kernel 2.4 compatibility for set 2 |
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*/ |
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static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code) |
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{ |
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if (atkbd->set == 3) { |
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if (atkbd->emul == 1) |
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code |= 0x100; |
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} else { |
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code = (code & 0x7f) | ((code & 0x80) << 1); |
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if (atkbd->emul == 1) |
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code |= 0x80; |
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} |
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return code; |
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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) |
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{ |
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struct atkbd *atkbd = serio_get_drvdata(serio); |
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struct input_dev *dev = atkbd->dev; |
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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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unsigned short keycode; |
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dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, flags); |
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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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dev_warn(&serio->dev, "Frame/parity error: %02x\n", flags); |
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serio_write(serio, ATKBD_CMD_RESEND); |
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atkbd->resend = true; |
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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 = false; |
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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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pm_wakeup_event(&serio->dev, 0); |
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if (!atkbd->enabled) |
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goto out; |
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input_event(dev, EV_MSC, MSC_RAW, code); |
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if (atkbd_platform_scancode_fixup) |
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code = atkbd_platform_scancode_fixup(atkbd, code); |
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if (atkbd->translated) { |
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if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) { |
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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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atkbd_calculate_xl_bit(atkbd, data); |
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} |
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switch (code) { |
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case ATKBD_RET_BAT: |
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atkbd->enabled = false; |
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serio_reconnect(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 = true; |
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goto out; |
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case ATKBD_RET_ACK: |
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case ATKBD_RET_NAK: |
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if (printk_ratelimit()) |
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dev_warn(&serio->dev, |
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"Spurious %s on %s. " |
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"Some program might be trying to access hardware directly.\n", |
|
data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); |
|
goto out; |
|
case ATKBD_RET_ERR: |
|
atkbd->err_count++; |
|
dev_dbg(&serio->dev, "Keyboard on %s reports too many keys pressed.\n", |
|
serio->phys); |
|
goto out; |
|
} |
|
|
|
code = atkbd_compat_scancode(atkbd, code); |
|
|
|
if (atkbd->emul && --atkbd->emul) |
|
goto out; |
|
|
|
keycode = atkbd->keycode[code]; |
|
|
|
if (!(atkbd->release && test_bit(code, atkbd->force_release_mask))) |
|
if (keycode != ATKBD_KEY_NULL) |
|
input_event(dev, EV_MSC, MSC_SCAN, code); |
|
|
|
switch (keycode) { |
|
case ATKBD_KEY_NULL: |
|
break; |
|
case ATKBD_KEY_UNKNOWN: |
|
dev_warn(&serio->dev, |
|
"Unknown key %s (%s set %d, code %#x on %s).\n", |
|
atkbd->release ? "released" : "pressed", |
|
atkbd->translated ? "translated" : "raw", |
|
atkbd->set, code, serio->phys); |
|
dev_warn(&serio->dev, |
|
"Use 'setkeycodes %s%02x <keycode>' to make it known.\n", |
|
code & 0x80 ? "e0" : "", code & 0x7f); |
|
input_sync(dev); |
|
break; |
|
case ATKBD_SCR_1: |
|
scroll = 1; |
|
break; |
|
case ATKBD_SCR_2: |
|
scroll = 2; |
|
break; |
|
case ATKBD_SCR_4: |
|
scroll = 4; |
|
break; |
|
case ATKBD_SCR_8: |
|
scroll = 8; |
|
break; |
|
case ATKBD_SCR_CLICK: |
|
click = !atkbd->release; |
|
break; |
|
case ATKBD_SCR_LEFT: |
|
hscroll = -1; |
|
break; |
|
case ATKBD_SCR_RIGHT: |
|
hscroll = 1; |
|
break; |
|
default: |
|
if (atkbd->release) { |
|
value = 0; |
|
atkbd->last = 0; |
|
} else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) { |
|
/* Workaround Toshiba laptop multiple keypress */ |
|
value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2; |
|
} else { |
|
value = 1; |
|
atkbd->last = code; |
|
atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2; |
|
} |
|
|
|
input_event(dev, EV_KEY, keycode, value); |
|
input_sync(dev); |
|
|
|
if (value && test_bit(code, atkbd->force_release_mask)) { |
|
input_event(dev, EV_MSC, MSC_SCAN, code); |
|
input_report_key(dev, keycode, 0); |
|
input_sync(dev); |
|
} |
|
} |
|
|
|
if (atkbd->scroll) { |
|
if (click != -1) |
|
input_report_key(dev, BTN_MIDDLE, click); |
|
input_report_rel(dev, REL_WHEEL, |
|
atkbd->release ? -scroll : scroll); |
|
input_report_rel(dev, REL_HWHEEL, hscroll); |
|
input_sync(dev); |
|
} |
|
|
|
atkbd->release = false; |
|
out: |
|
return IRQ_HANDLED; |
|
} |
|
|
|
static int atkbd_set_repeat_rate(struct atkbd *atkbd) |
|
{ |
|
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 }; |
|
|
|
struct input_dev *dev = atkbd->dev; |
|
unsigned char param; |
|
int i = 0, j = 0; |
|
|
|
while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD]) |
|
i++; |
|
dev->rep[REP_PERIOD] = period[i]; |
|
|
|
while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY]) |
|
j++; |
|
dev->rep[REP_DELAY] = delay[j]; |
|
|
|
param = i | (j << 5); |
|
return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP); |
|
} |
|
|
|
static int atkbd_set_leds(struct atkbd *atkbd) |
|
{ |
|
struct input_dev *dev = atkbd->dev; |
|
unsigned char param[2]; |
|
|
|
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); |
|
if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS)) |
|
return -1; |
|
|
|
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); |
|
if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS)) |
|
return -1; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* atkbd_event_work() is used to complete processing of events that |
|
* can not be processed by input_event() which is often called from |
|
* interrupt context. |
|
*/ |
|
|
|
static void atkbd_event_work(struct work_struct *work) |
|
{ |
|
struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work); |
|
|
|
mutex_lock(&atkbd->mutex); |
|
|
|
if (!atkbd->enabled) { |
|
/* |
|
* Serio ports are resumed asynchronously so while driver core |
|
* thinks that device is already fully operational in reality |
|
* it may not be ready yet. In this case we need to keep |
|
* rescheduling till reconnect completes. |
|
*/ |
|
schedule_delayed_work(&atkbd->event_work, |
|
msecs_to_jiffies(100)); |
|
} else { |
|
if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) |
|
atkbd_set_leds(atkbd); |
|
|
|
if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) |
|
atkbd_set_repeat_rate(atkbd); |
|
} |
|
|
|
mutex_unlock(&atkbd->mutex); |
|
} |
|
|
|
/* |
|
* Schedule switch for execution. We need to throttle requests, |
|
* otherwise keyboard may become unresponsive. |
|
*/ |
|
static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit) |
|
{ |
|
unsigned long delay = msecs_to_jiffies(50); |
|
|
|
if (time_after(jiffies, atkbd->event_jiffies + delay)) |
|
delay = 0; |
|
|
|
atkbd->event_jiffies = jiffies; |
|
set_bit(event_bit, &atkbd->event_mask); |
|
mb(); |
|
schedule_delayed_work(&atkbd->event_work, delay); |
|
} |
|
|
|
/* |
|
* Event callback from the input module. Events that change the state of |
|
* the hardware are processed here. If action can not be performed in |
|
* interrupt context it is offloaded to atkbd_event_work. |
|
*/ |
|
|
|
static int atkbd_event(struct input_dev *dev, |
|
unsigned int type, unsigned int code, int value) |
|
{ |
|
struct atkbd *atkbd = input_get_drvdata(dev); |
|
|
|
if (!atkbd->write) |
|
return -1; |
|
|
|
switch (type) { |
|
|
|
case EV_LED: |
|
atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT); |
|
return 0; |
|
|
|
case EV_REP: |
|
if (!atkbd->softrepeat) |
|
atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT); |
|
return 0; |
|
|
|
default: |
|
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 = true; |
|
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 = false; |
|
serio_continue_rx(atkbd->ps2dev.serio); |
|
} |
|
|
|
static int atkbd_activate(struct atkbd *atkbd) |
|
{ |
|
struct ps2dev *ps2dev = &atkbd->ps2dev; |
|
|
|
/* |
|
* Enable the keyboard to receive keystrokes. |
|
*/ |
|
|
|
if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) { |
|
dev_err(&ps2dev->serio->dev, |
|
"Failed to enable keyboard on %s\n", |
|
ps2dev->serio->phys); |
|
return -1; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* atkbd_deactivate() resets and disables the keyboard from sending |
|
* keystrokes. |
|
*/ |
|
|
|
static void atkbd_deactivate(struct atkbd *atkbd) |
|
{ |
|
struct ps2dev *ps2dev = &atkbd->ps2dev; |
|
|
|
if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_DIS)) |
|
dev_err(&ps2dev->serio->dev, |
|
"Failed to deactivate keyboard on %s\n", |
|
ps2dev->serio->phys); |
|
} |
|
|
|
/* |
|
* 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)) |
|
dev_warn(&ps2dev->serio->dev, |
|
"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 (!ps2_is_keyboard_id(param[0])) |
|
return -1; |
|
|
|
atkbd->id = (param[0] << 8) | param[1]; |
|
|
|
if (atkbd->id == 0xaca1 && atkbd->translated) { |
|
dev_err(&ps2dev->serio->dev, |
|
"NCD terminal keyboards are only supported on non-translating controllers. " |
|
"Use i8042.direct=1 to disable translation.\n"); |
|
return -1; |
|
} |
|
|
|
/* |
|
* Make sure nothing is coming from the keyboard and disturbs our |
|
* internal state. |
|
*/ |
|
if (!atkbd_skip_deactivate) |
|
atkbd_deactivate(atkbd); |
|
|
|
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 = false; |
|
/* |
|
* 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 = true; |
|
return 2; |
|
} |
|
} |
|
|
|
if (atkbd_terminal) { |
|
ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MB); |
|
return 3; |
|
} |
|
|
|
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_reset_state(struct atkbd *atkbd) |
|
{ |
|
struct ps2dev *ps2dev = &atkbd->ps2dev; |
|
unsigned char param[1]; |
|
|
|
/* |
|
* Set the LEDs to a predefined state (all off). |
|
*/ |
|
|
|
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; |
|
|
|
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); |
|
|
|
atkbd_disable(atkbd); |
|
ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF); |
|
} |
|
|
|
|
|
/* |
|
* atkbd_disconnect() closes and frees. |
|
*/ |
|
|
|
static void atkbd_disconnect(struct serio *serio) |
|
{ |
|
struct atkbd *atkbd = serio_get_drvdata(serio); |
|
|
|
sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); |
|
|
|
atkbd_disable(atkbd); |
|
|
|
input_unregister_device(atkbd->dev); |
|
|
|
/* |
|
* Make sure we don't have a command in flight. |
|
* Note that since atkbd->enabled is false event work will keep |
|
* rescheduling itself until it gets canceled and will not try |
|
* accessing freed input device or serio port. |
|
*/ |
|
cancel_delayed_work_sync(&atkbd->event_work); |
|
|
|
serio_close(serio); |
|
serio_set_drvdata(serio, NULL); |
|
kfree(atkbd); |
|
} |
|
|
|
/* |
|
* generate release events for the keycodes given in data |
|
*/ |
|
static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd, |
|
const void *data) |
|
{ |
|
const unsigned int *keys = data; |
|
unsigned int i; |
|
|
|
if (atkbd->set == 2) |
|
for (i = 0; keys[i] != -1U; i++) |
|
__set_bit(keys[i], atkbd->force_release_mask); |
|
} |
|
|
|
/* |
|
* Most special keys (Fn+F?) on Dell laptops do not generate release |
|
* events so we have to do it ourselves. |
|
*/ |
|
static unsigned int atkbd_dell_laptop_forced_release_keys[] = { |
|
0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U |
|
}; |
|
|
|
/* |
|
* Perform fixup for HP system that doesn't generate release |
|
* for its video switch |
|
*/ |
|
static unsigned int atkbd_hp_forced_release_keys[] = { |
|
0x94, -1U |
|
}; |
|
|
|
/* |
|
* Samsung NC10,NC20 with Fn+F? key release not working |
|
*/ |
|
static unsigned int atkbd_samsung_forced_release_keys[] = { |
|
0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U |
|
}; |
|
|
|
/* |
|
* Amilo Pi 3525 key release for Fn+Volume keys not working |
|
*/ |
|
static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = { |
|
0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U |
|
}; |
|
|
|
/* |
|
* Amilo Xi 3650 key release for light touch bar not working |
|
*/ |
|
static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = { |
|
0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U |
|
}; |
|
|
|
/* |
|
* Soltech TA12 system with broken key release on volume keys and mute key |
|
*/ |
|
static unsigned int atkdb_soltech_ta12_forced_release_keys[] = { |
|
0xa0, 0xae, 0xb0, -1U |
|
}; |
|
|
|
/* |
|
* Many notebooks don't send key release event for volume up/down |
|
* keys, with key list below common among them |
|
*/ |
|
static unsigned int atkbd_volume_forced_release_keys[] = { |
|
0xae, 0xb0, -1U |
|
}; |
|
|
|
/* |
|
* OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas |
|
* they should be generating e4-e6 (0x80 | code). |
|
*/ |
|
static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd, |
|
unsigned int code) |
|
{ |
|
if (atkbd->translated && atkbd->emul == 1 && |
|
(code == 0x64 || code == 0x65 || code == 0x66)) { |
|
atkbd->emul = 0; |
|
code |= 0x80; |
|
} |
|
|
|
return code; |
|
} |
|
|
|
static int atkbd_get_keymap_from_fwnode(struct atkbd *atkbd) |
|
{ |
|
struct device *dev = &atkbd->ps2dev.serio->dev; |
|
int i, n; |
|
u32 *ptr; |
|
u16 scancode, keycode; |
|
|
|
/* Parse "linux,keymap" property */ |
|
n = device_property_count_u32(dev, "linux,keymap"); |
|
if (n <= 0 || n > ATKBD_KEYMAP_SIZE) |
|
return -ENXIO; |
|
|
|
ptr = kcalloc(n, sizeof(u32), GFP_KERNEL); |
|
if (!ptr) |
|
return -ENOMEM; |
|
|
|
if (device_property_read_u32_array(dev, "linux,keymap", ptr, n)) { |
|
dev_err(dev, "problem parsing FW keymap property\n"); |
|
kfree(ptr); |
|
return -EINVAL; |
|
} |
|
|
|
memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); |
|
for (i = 0; i < n; i++) { |
|
scancode = SCANCODE(ptr[i]); |
|
keycode = KEYCODE(ptr[i]); |
|
atkbd->keycode[scancode] = keycode; |
|
} |
|
|
|
kfree(ptr); |
|
return 0; |
|
} |
|
|
|
/* |
|
* atkbd_set_keycode_table() initializes keyboard's keycode table |
|
* according to the selected scancode set |
|
*/ |
|
|
|
static void atkbd_set_keycode_table(struct atkbd *atkbd) |
|
{ |
|
struct device *dev = &atkbd->ps2dev.serio->dev; |
|
unsigned int scancode; |
|
int i, j; |
|
|
|
memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); |
|
bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE); |
|
|
|
if (!atkbd_get_keymap_from_fwnode(atkbd)) { |
|
dev_dbg(dev, "Using FW keymap\n"); |
|
} else if (atkbd->translated) { |
|
for (i = 0; i < 128; i++) { |
|
scancode = atkbd_unxlate_table[i]; |
|
atkbd->keycode[i] = atkbd_set2_keycode[scancode]; |
|
atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80]; |
|
if (atkbd->scroll) |
|
for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) |
|
if ((scancode | 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++) { |
|
scancode = atkbd_scroll_keys[i].set2; |
|
atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode; |
|
} |
|
} |
|
|
|
/* |
|
* HANGEUL and HANJA keys do not send release events so we need to |
|
* generate such events ourselves |
|
*/ |
|
scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL); |
|
atkbd->keycode[scancode] = KEY_HANGEUL; |
|
__set_bit(scancode, atkbd->force_release_mask); |
|
|
|
scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA); |
|
atkbd->keycode[scancode] = KEY_HANJA; |
|
__set_bit(scancode, atkbd->force_release_mask); |
|
|
|
/* |
|
* Perform additional fixups |
|
*/ |
|
if (atkbd_platform_fixup) |
|
atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data); |
|
} |
|
|
|
/* |
|
* atkbd_set_device_attrs() sets up keyboard's input device structure |
|
*/ |
|
|
|
static void atkbd_set_device_attrs(struct atkbd *atkbd) |
|
{ |
|
struct input_dev *input_dev = atkbd->dev; |
|
int i; |
|
|
|
if (atkbd->extra) |
|
snprintf(atkbd->name, sizeof(atkbd->name), |
|
"AT Set 2 Extra keyboard"); |
|
else |
|
snprintf(atkbd->name, sizeof(atkbd->name), |
|
"AT %s Set %d keyboard", |
|
atkbd->translated ? "Translated" : "Raw", atkbd->set); |
|
|
|
snprintf(atkbd->phys, sizeof(atkbd->phys), |
|
"%s/input0", atkbd->ps2dev.serio->phys); |
|
|
|
input_dev->name = atkbd->name; |
|
input_dev->phys = atkbd->phys; |
|
input_dev->id.bustype = BUS_I8042; |
|
input_dev->id.vendor = 0x0001; |
|
input_dev->id.product = atkbd->translated ? 1 : atkbd->set; |
|
input_dev->id.version = atkbd->id; |
|
input_dev->event = atkbd_event; |
|
input_dev->dev.parent = &atkbd->ps2dev.serio->dev; |
|
|
|
input_set_drvdata(input_dev, atkbd); |
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | |
|
BIT_MASK(EV_MSC); |
|
|
|
if (atkbd->write) { |
|
input_dev->evbit[0] |= BIT_MASK(EV_LED); |
|
input_dev->ledbit[0] = BIT_MASK(LED_NUML) | |
|
BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL); |
|
} |
|
|
|
if (atkbd->extra) |
|
input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) | |
|
BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) | |
|
BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC); |
|
|
|
if (!atkbd->softrepeat) { |
|
input_dev->rep[REP_DELAY] = 250; |
|
input_dev->rep[REP_PERIOD] = 33; |
|
} |
|
|
|
input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) : |
|
BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN); |
|
|
|
if (atkbd->scroll) { |
|
input_dev->evbit[0] |= BIT_MASK(EV_REL); |
|
input_dev->relbit[0] = BIT_MASK(REL_WHEEL) | |
|
BIT_MASK(REL_HWHEEL); |
|
__set_bit(BTN_MIDDLE, input_dev->keybit); |
|
} |
|
|
|
input_dev->keycode = atkbd->keycode; |
|
input_dev->keycodesize = sizeof(unsigned short); |
|
input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); |
|
|
|
for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) { |
|
if (atkbd->keycode[i] != KEY_RESERVED && |
|
atkbd->keycode[i] != ATKBD_KEY_NULL && |
|
atkbd->keycode[i] < ATKBD_SPECIAL) { |
|
__set_bit(atkbd->keycode[i], input_dev->keybit); |
|
} |
|
} |
|
} |
|
|
|
static void atkbd_parse_fwnode_data(struct serio *serio) |
|
{ |
|
struct atkbd *atkbd = serio_get_drvdata(serio); |
|
struct device *dev = &serio->dev; |
|
int n; |
|
|
|
/* Parse "function-row-physmap" property */ |
|
n = device_property_count_u32(dev, "function-row-physmap"); |
|
if (n > 0 && n <= MAX_FUNCTION_ROW_KEYS && |
|
!device_property_read_u32_array(dev, "function-row-physmap", |
|
atkbd->function_row_physmap, n)) { |
|
atkbd->num_function_row_keys = n; |
|
dev_dbg(dev, "FW reported %d function-row key locations\n", n); |
|
} |
|
} |
|
|
|
/* |
|
* 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; |
|
struct input_dev *dev; |
|
int err = -ENOMEM; |
|
|
|
atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); |
|
dev = input_allocate_device(); |
|
if (!atkbd || !dev) |
|
goto fail1; |
|
|
|
atkbd->dev = dev; |
|
ps2_init(&atkbd->ps2dev, serio); |
|
INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work); |
|
mutex_init(&atkbd->mutex); |
|
|
|
switch (serio->id.type) { |
|
|
|
case SERIO_8042_XL: |
|
atkbd->translated = true; |
|
fallthrough; |
|
|
|
case SERIO_8042: |
|
if (serio->write) |
|
atkbd->write = true; |
|
break; |
|
} |
|
|
|
atkbd->softraw = atkbd_softraw; |
|
atkbd->softrepeat = atkbd_softrepeat; |
|
atkbd->scroll = atkbd_scroll; |
|
|
|
if (atkbd->softrepeat) |
|
atkbd->softraw = true; |
|
|
|
serio_set_drvdata(serio, atkbd); |
|
|
|
err = serio_open(serio, drv); |
|
if (err) |
|
goto fail2; |
|
|
|
if (atkbd->write) { |
|
|
|
if (atkbd_probe(atkbd)) { |
|
err = -ENODEV; |
|
goto fail3; |
|
} |
|
|
|
atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); |
|
atkbd_reset_state(atkbd); |
|
|
|
} else { |
|
atkbd->set = 2; |
|
atkbd->id = 0xab00; |
|
} |
|
|
|
atkbd_parse_fwnode_data(serio); |
|
|
|
atkbd_set_keycode_table(atkbd); |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group); |
|
if (err) |
|
goto fail3; |
|
|
|
atkbd_enable(atkbd); |
|
if (serio->write) |
|
atkbd_activate(atkbd); |
|
|
|
err = input_register_device(atkbd->dev); |
|
if (err) |
|
goto fail4; |
|
|
|
return 0; |
|
|
|
fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); |
|
fail3: serio_close(serio); |
|
fail2: serio_set_drvdata(serio, NULL); |
|
fail1: input_free_device(dev); |
|
kfree(atkbd); |
|
return err; |
|
} |
|
|
|
/* |
|
* 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; |
|
int retval = -1; |
|
|
|
if (!atkbd || !drv) { |
|
dev_dbg(&serio->dev, |
|
"reconnect request, but serio is disconnected, ignoring...\n"); |
|
return -1; |
|
} |
|
|
|
mutex_lock(&atkbd->mutex); |
|
|
|
atkbd_disable(atkbd); |
|
|
|
if (atkbd->write) { |
|
if (atkbd_probe(atkbd)) |
|
goto out; |
|
|
|
if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) |
|
goto out; |
|
|
|
/* |
|
* Restore LED state and repeat rate. While input core |
|
* will do this for us at resume time reconnect may happen |
|
* because user requested it via sysfs or simply because |
|
* keyboard was unplugged and plugged in again so we need |
|
* to do it ourselves here. |
|
*/ |
|
atkbd_set_leds(atkbd); |
|
if (!atkbd->softrepeat) |
|
atkbd_set_repeat_rate(atkbd); |
|
|
|
} |
|
|
|
/* |
|
* Reset our state machine in case reconnect happened in the middle |
|
* of multi-byte scancode. |
|
*/ |
|
atkbd->xl_bit = 0; |
|
atkbd->emul = 0; |
|
|
|
atkbd_enable(atkbd); |
|
if (atkbd->write) |
|
atkbd_activate(atkbd); |
|
|
|
retval = 0; |
|
|
|
out: |
|
mutex_unlock(&atkbd->mutex); |
|
return retval; |
|
} |
|
|
|
static const 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); |
|
struct atkbd *atkbd = serio_get_drvdata(serio); |
|
|
|
return handler(atkbd, buf); |
|
} |
|
|
|
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 = serio_get_drvdata(serio); |
|
int retval; |
|
|
|
retval = mutex_lock_interruptible(&atkbd->mutex); |
|
if (retval) |
|
return retval; |
|
|
|
atkbd_disable(atkbd); |
|
retval = handler(atkbd, buf, count); |
|
atkbd_enable(atkbd); |
|
|
|
mutex_unlock(&atkbd->mutex); |
|
|
|
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) |
|
{ |
|
struct input_dev *old_dev, *new_dev; |
|
unsigned int value; |
|
int err; |
|
bool old_extra; |
|
unsigned char old_set; |
|
|
|
if (!atkbd->write) |
|
return -EIO; |
|
|
|
err = kstrtouint(buf, 10, &value); |
|
if (err) |
|
return err; |
|
|
|
if (value > 1) |
|
return -EINVAL; |
|
|
|
if (atkbd->extra != value) { |
|
/* |
|
* Since device's properties will change we need to |
|
* unregister old device. But allocate and register |
|
* new one first to make sure we have it. |
|
*/ |
|
old_dev = atkbd->dev; |
|
old_extra = atkbd->extra; |
|
old_set = atkbd->set; |
|
|
|
new_dev = input_allocate_device(); |
|
if (!new_dev) |
|
return -ENOMEM; |
|
|
|
atkbd->dev = new_dev; |
|
atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); |
|
atkbd_reset_state(atkbd); |
|
atkbd_activate(atkbd); |
|
atkbd_set_keycode_table(atkbd); |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
err = input_register_device(atkbd->dev); |
|
if (err) { |
|
input_free_device(new_dev); |
|
|
|
atkbd->dev = old_dev; |
|
atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); |
|
atkbd_set_keycode_table(atkbd); |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
return err; |
|
} |
|
input_unregister_device(old_dev); |
|
|
|
} |
|
return count; |
|
} |
|
|
|
static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf) |
|
{ |
|
size_t len = scnprintf(buf, PAGE_SIZE - 1, "%*pbl", |
|
ATKBD_KEYMAP_SIZE, atkbd->force_release_mask); |
|
|
|
buf[len++] = '\n'; |
|
buf[len] = '\0'; |
|
|
|
return len; |
|
} |
|
|
|
static ssize_t atkbd_set_force_release(struct atkbd *atkbd, |
|
const char *buf, size_t count) |
|
{ |
|
/* 64 bytes on stack should be acceptable */ |
|
DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE); |
|
int err; |
|
|
|
err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE); |
|
if (err) |
|
return err; |
|
|
|
memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask)); |
|
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) |
|
{ |
|
struct input_dev *old_dev, *new_dev; |
|
unsigned int value; |
|
int err; |
|
bool old_scroll; |
|
|
|
err = kstrtouint(buf, 10, &value); |
|
if (err) |
|
return err; |
|
|
|
if (value > 1) |
|
return -EINVAL; |
|
|
|
if (atkbd->scroll != value) { |
|
old_dev = atkbd->dev; |
|
old_scroll = atkbd->scroll; |
|
|
|
new_dev = input_allocate_device(); |
|
if (!new_dev) |
|
return -ENOMEM; |
|
|
|
atkbd->dev = new_dev; |
|
atkbd->scroll = value; |
|
atkbd_set_keycode_table(atkbd); |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
err = input_register_device(atkbd->dev); |
|
if (err) { |
|
input_free_device(new_dev); |
|
|
|
atkbd->scroll = old_scroll; |
|
atkbd->dev = old_dev; |
|
atkbd_set_keycode_table(atkbd); |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
return err; |
|
} |
|
input_unregister_device(old_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) |
|
{ |
|
struct input_dev *old_dev, *new_dev; |
|
unsigned int value; |
|
int err; |
|
unsigned char old_set; |
|
bool old_extra; |
|
|
|
if (!atkbd->write) |
|
return -EIO; |
|
|
|
err = kstrtouint(buf, 10, &value); |
|
if (err) |
|
return err; |
|
|
|
if (value != 2 && value != 3) |
|
return -EINVAL; |
|
|
|
if (atkbd->set != value) { |
|
old_dev = atkbd->dev; |
|
old_extra = atkbd->extra; |
|
old_set = atkbd->set; |
|
|
|
new_dev = input_allocate_device(); |
|
if (!new_dev) |
|
return -ENOMEM; |
|
|
|
atkbd->dev = new_dev; |
|
atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); |
|
atkbd_reset_state(atkbd); |
|
atkbd_activate(atkbd); |
|
atkbd_set_keycode_table(atkbd); |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
err = input_register_device(atkbd->dev); |
|
if (err) { |
|
input_free_device(new_dev); |
|
|
|
atkbd->dev = old_dev; |
|
atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); |
|
atkbd_set_keycode_table(atkbd); |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
return err; |
|
} |
|
input_unregister_device(old_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) |
|
{ |
|
struct input_dev *old_dev, *new_dev; |
|
unsigned int value; |
|
int err; |
|
bool old_softrepeat, old_softraw; |
|
|
|
if (!atkbd->write) |
|
return -EIO; |
|
|
|
err = kstrtouint(buf, 10, &value); |
|
if (err) |
|
return err; |
|
|
|
if (value > 1) |
|
return -EINVAL; |
|
|
|
if (atkbd->softrepeat != value) { |
|
old_dev = atkbd->dev; |
|
old_softrepeat = atkbd->softrepeat; |
|
old_softraw = atkbd->softraw; |
|
|
|
new_dev = input_allocate_device(); |
|
if (!new_dev) |
|
return -ENOMEM; |
|
|
|
atkbd->dev = new_dev; |
|
atkbd->softrepeat = value; |
|
if (atkbd->softrepeat) |
|
atkbd->softraw = true; |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
err = input_register_device(atkbd->dev); |
|
if (err) { |
|
input_free_device(new_dev); |
|
|
|
atkbd->dev = old_dev; |
|
atkbd->softrepeat = old_softrepeat; |
|
atkbd->softraw = old_softraw; |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
return err; |
|
} |
|
input_unregister_device(old_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) |
|
{ |
|
struct input_dev *old_dev, *new_dev; |
|
unsigned int value; |
|
int err; |
|
bool old_softraw; |
|
|
|
err = kstrtouint(buf, 10, &value); |
|
if (err) |
|
return err; |
|
|
|
if (value > 1) |
|
return -EINVAL; |
|
|
|
if (atkbd->softraw != value) { |
|
old_dev = atkbd->dev; |
|
old_softraw = atkbd->softraw; |
|
|
|
new_dev = input_allocate_device(); |
|
if (!new_dev) |
|
return -ENOMEM; |
|
|
|
atkbd->dev = new_dev; |
|
atkbd->softraw = value; |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
err = input_register_device(atkbd->dev); |
|
if (err) { |
|
input_free_device(new_dev); |
|
|
|
atkbd->dev = old_dev; |
|
atkbd->softraw = old_softraw; |
|
atkbd_set_device_attrs(atkbd); |
|
|
|
return err; |
|
} |
|
input_unregister_device(old_dev); |
|
} |
|
return count; |
|
} |
|
|
|
static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf) |
|
{ |
|
return sprintf(buf, "%lu\n", atkbd->err_count); |
|
} |
|
|
|
static int __init atkbd_setup_forced_release(const struct dmi_system_id *id) |
|
{ |
|
atkbd_platform_fixup = atkbd_apply_forced_release_keylist; |
|
atkbd_platform_fixup_data = id->driver_data; |
|
|
|
return 1; |
|
} |
|
|
|
static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id) |
|
{ |
|
atkbd_platform_scancode_fixup = id->driver_data; |
|
|
|
return 1; |
|
} |
|
|
|
static int __init atkbd_deactivate_fixup(const struct dmi_system_id *id) |
|
{ |
|
atkbd_skip_deactivate = true; |
|
return 1; |
|
} |
|
|
|
/* |
|
* NOTE: do not add any more "force release" quirks to this table. The |
|
* task of adjusting list of keys that should be "released" automatically |
|
* by the driver is now delegated to userspace tools, such as udev, so |
|
* submit such quirks there. |
|
*/ |
|
static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = { |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
|
DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_dell_laptop_forced_release_keys, |
|
}, |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"), |
|
DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_dell_laptop_forced_release_keys, |
|
}, |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_hp_forced_release_keys, |
|
}, |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_volume_forced_release_keys, |
|
}, |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_volume_forced_release_keys, |
|
}, |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_volume_forced_release_keys, |
|
}, |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_volume_forced_release_keys, |
|
}, |
|
{ |
|
/* Inventec Symphony */ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_volume_forced_release_keys, |
|
}, |
|
{ |
|
/* Samsung NC10 */ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "NC10"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_samsung_forced_release_keys, |
|
}, |
|
{ |
|
/* Samsung NC20 */ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "NC20"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_samsung_forced_release_keys, |
|
}, |
|
{ |
|
/* Samsung SQ45S70S */ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_samsung_forced_release_keys, |
|
}, |
|
{ |
|
/* Fujitsu Amilo PA 1510 */ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_volume_forced_release_keys, |
|
}, |
|
{ |
|
/* Fujitsu Amilo Pi 3525 */ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_amilo_pi3525_forced_release_keys, |
|
}, |
|
{ |
|
/* Fujitsu Amilo Xi 3650 */ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkbd_amilo_xi3650_forced_release_keys, |
|
}, |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "TA12"), |
|
}, |
|
.callback = atkbd_setup_forced_release, |
|
.driver_data = atkdb_soltech_ta12_forced_release_keys, |
|
}, |
|
{ |
|
/* OQO Model 01+ */ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "OQO"), |
|
DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"), |
|
}, |
|
.callback = atkbd_setup_scancode_fixup, |
|
.driver_data = atkbd_oqo_01plus_scancode_fixup, |
|
}, |
|
{ |
|
.matches = { |
|
DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"), |
|
}, |
|
.callback = atkbd_deactivate_fixup, |
|
}, |
|
{ } |
|
}; |
|
|
|
static int __init atkbd_init(void) |
|
{ |
|
dmi_check_system(atkbd_dmi_quirk_table); |
|
|
|
return serio_register_driver(&atkbd_drv); |
|
} |
|
|
|
static void __exit atkbd_exit(void) |
|
{ |
|
serio_unregister_driver(&atkbd_drv); |
|
} |
|
|
|
module_init(atkbd_init); |
|
module_exit(atkbd_exit);
|
|
|