Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * AT and PS/2 keyboard driver |
| 3 | * |
| 4 | * Copyright (c) 1999-2002 Vojtech Pavlik |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License version 2 as published by |
| 10 | * the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | /* |
| 14 | * This driver can handle standard AT keyboards and PS/2 keyboards in |
| 15 | * Translated and Raw Set 2 and Set 3, as well as AT keyboards on dumb |
| 16 | * input-only controllers and AT keyboards connected over a one way RS232 |
| 17 | * converter. |
| 18 | */ |
| 19 | |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/module.h> |
| 22 | #include <linux/moduleparam.h> |
| 23 | #include <linux/slab.h> |
| 24 | #include <linux/interrupt.h> |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/input.h> |
| 27 | #include <linux/serio.h> |
| 28 | #include <linux/workqueue.h> |
| 29 | #include <linux/libps2.h> |
Ingo Molnar | 33d3f07 | 2006-02-19 00:22:18 -0500 | [diff] [blame] | 30 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | |
| 32 | #define DRIVER_DESC "AT and PS/2 keyboard driver" |
| 33 | |
| 34 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>"); |
| 35 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 36 | MODULE_LICENSE("GPL"); |
| 37 | |
| 38 | static int atkbd_set = 2; |
| 39 | module_param_named(set, atkbd_set, int, 0); |
| 40 | MODULE_PARM_DESC(set, "Select keyboard code set (2 = default, 3 = PS/2 native)"); |
| 41 | |
| 42 | #if defined(__i386__) || defined(__x86_64__) || defined(__hppa__) |
| 43 | static int atkbd_reset; |
| 44 | #else |
| 45 | static int atkbd_reset = 1; |
| 46 | #endif |
| 47 | module_param_named(reset, atkbd_reset, bool, 0); |
| 48 | MODULE_PARM_DESC(reset, "Reset keyboard during initialization"); |
| 49 | |
| 50 | static int atkbd_softrepeat; |
| 51 | module_param_named(softrepeat, atkbd_softrepeat, bool, 0); |
| 52 | MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat"); |
| 53 | |
| 54 | static int atkbd_softraw = 1; |
| 55 | module_param_named(softraw, atkbd_softraw, bool, 0); |
| 56 | MODULE_PARM_DESC(softraw, "Use software generated rawmode"); |
| 57 | |
Vojtech Pavlik | a86d1f4 | 2005-06-07 13:22:14 -0700 | [diff] [blame] | 58 | static int atkbd_scroll = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | module_param_named(scroll, atkbd_scroll, bool, 0); |
| 60 | MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards"); |
| 61 | |
| 62 | static int atkbd_extra; |
| 63 | module_param_named(extra, atkbd_extra, bool, 0); |
| 64 | MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards"); |
| 65 | |
| 66 | __obsolete_setup("atkbd_set="); |
| 67 | __obsolete_setup("atkbd_reset"); |
| 68 | __obsolete_setup("atkbd_softrepeat="); |
| 69 | |
| 70 | /* |
| 71 | * Scancode to keycode tables. These are just the default setting, and |
| 72 | * are loadable via an userland utility. |
| 73 | */ |
| 74 | |
| 75 | static unsigned char atkbd_set2_keycode[512] = { |
| 76 | |
| 77 | #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES |
| 78 | |
| 79 | /* XXX: need a more general approach */ |
| 80 | |
| 81 | #include "hpps2atkbd.h" /* include the keyboard scancodes */ |
| 82 | |
| 83 | #else |
| 84 | 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117, |
| 85 | 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0, |
| 86 | 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183, |
| 87 | 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185, |
| 88 | 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0, |
| 89 | 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85, |
| 90 | 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0, |
| 91 | 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99, |
| 92 | |
| 93 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 94 | 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125, |
| 95 | 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127, |
| 96 | 159, 0,115, 0,164, 0, 0,116,158, 0,150,166, 0, 0, 0,142, |
| 97 | 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0, |
| 98 | 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0, |
| 99 | 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112, |
| 100 | 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0, |
| 101 | |
| 102 | 0, 0, 0, 65, 99, |
| 103 | #endif |
| 104 | }; |
| 105 | |
| 106 | static unsigned char atkbd_set3_keycode[512] = { |
| 107 | |
| 108 | 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60, |
| 109 | 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62, |
| 110 | 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64, |
| 111 | 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66, |
| 112 | 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68, |
| 113 | 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70, |
| 114 | 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104, |
| 115 | 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183, |
| 116 | |
| 117 | 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0, |
| 118 | 0,139,150,163,165,115,152,150,166,140,160,154,113,114,167,168, |
| 119 | 148,149,147,140 |
| 120 | }; |
| 121 | |
| 122 | static unsigned char atkbd_unxlate_table[128] = { |
| 123 | 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13, |
| 124 | 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27, |
| 125 | 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42, |
| 126 | 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3, |
| 127 | 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105, |
| 128 | 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63, |
| 129 | 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111, |
| 130 | 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110 |
| 131 | }; |
| 132 | |
| 133 | #define ATKBD_CMD_SETLEDS 0x10ed |
| 134 | #define ATKBD_CMD_GSCANSET 0x11f0 |
| 135 | #define ATKBD_CMD_SSCANSET 0x10f0 |
| 136 | #define ATKBD_CMD_GETID 0x02f2 |
| 137 | #define ATKBD_CMD_SETREP 0x10f3 |
| 138 | #define ATKBD_CMD_ENABLE 0x00f4 |
| 139 | #define ATKBD_CMD_RESET_DIS 0x00f5 |
| 140 | #define ATKBD_CMD_SETALL_MBR 0x00fa |
| 141 | #define ATKBD_CMD_RESET_BAT 0x02ff |
| 142 | #define ATKBD_CMD_RESEND 0x00fe |
| 143 | #define ATKBD_CMD_EX_ENABLE 0x10ea |
| 144 | #define ATKBD_CMD_EX_SETLEDS 0x20eb |
| 145 | #define ATKBD_CMD_OK_GETID 0x02e8 |
| 146 | |
| 147 | #define ATKBD_RET_ACK 0xfa |
| 148 | #define ATKBD_RET_NAK 0xfe |
| 149 | #define ATKBD_RET_BAT 0xaa |
| 150 | #define ATKBD_RET_EMUL0 0xe0 |
| 151 | #define ATKBD_RET_EMUL1 0xe1 |
| 152 | #define ATKBD_RET_RELEASE 0xf0 |
| 153 | #define ATKBD_RET_HANGUEL 0xf1 |
| 154 | #define ATKBD_RET_HANJA 0xf2 |
| 155 | #define ATKBD_RET_ERR 0xff |
| 156 | |
| 157 | #define ATKBD_KEY_UNKNOWN 0 |
| 158 | #define ATKBD_KEY_NULL 255 |
| 159 | |
| 160 | #define ATKBD_SCR_1 254 |
| 161 | #define ATKBD_SCR_2 253 |
| 162 | #define ATKBD_SCR_4 252 |
| 163 | #define ATKBD_SCR_8 251 |
| 164 | #define ATKBD_SCR_CLICK 250 |
| 165 | #define ATKBD_SCR_LEFT 249 |
| 166 | #define ATKBD_SCR_RIGHT 248 |
| 167 | |
| 168 | #define ATKBD_SPECIAL 248 |
| 169 | |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 170 | #define ATKBD_LED_EVENT_BIT 0 |
| 171 | #define ATKBD_REP_EVENT_BIT 1 |
| 172 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | static struct { |
| 174 | unsigned char keycode; |
| 175 | unsigned char set2; |
| 176 | } atkbd_scroll_keys[] = { |
| 177 | { ATKBD_SCR_1, 0xc5 }, |
Vojtech Pavlik | 5212dd5 | 2005-05-28 15:51:47 -0700 | [diff] [blame] | 178 | { ATKBD_SCR_2, 0x9d }, |
| 179 | { ATKBD_SCR_4, 0xa4 }, |
| 180 | { ATKBD_SCR_8, 0x9b }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | { ATKBD_SCR_CLICK, 0xe0 }, |
| 182 | { ATKBD_SCR_LEFT, 0xcb }, |
| 183 | { ATKBD_SCR_RIGHT, 0xd2 }, |
| 184 | }; |
| 185 | |
| 186 | /* |
| 187 | * The atkbd control structure |
| 188 | */ |
| 189 | |
| 190 | struct atkbd { |
| 191 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 192 | struct ps2dev ps2dev; |
| 193 | struct input_dev *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
| 195 | /* Written only during init */ |
| 196 | char name[64]; |
| 197 | char phys[32]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | |
| 199 | unsigned short id; |
| 200 | unsigned char keycode[512]; |
| 201 | unsigned char set; |
| 202 | unsigned char translated; |
| 203 | unsigned char extra; |
| 204 | unsigned char write; |
| 205 | unsigned char softrepeat; |
| 206 | unsigned char softraw; |
| 207 | unsigned char scroll; |
| 208 | unsigned char enabled; |
| 209 | |
| 210 | /* Accessed only from interrupt */ |
| 211 | unsigned char emul; |
| 212 | unsigned char resend; |
| 213 | unsigned char release; |
| 214 | unsigned char bat_xl; |
Vojtech Pavlik | 903b126 | 2005-09-05 00:11:41 -0500 | [diff] [blame] | 215 | unsigned char err_xl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | unsigned int last; |
| 217 | unsigned long time; |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 218 | |
| 219 | struct work_struct event_work; |
Ingo Molnar | 33d3f07 | 2006-02-19 00:22:18 -0500 | [diff] [blame] | 220 | struct mutex event_mutex; |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 221 | unsigned long event_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | }; |
| 223 | |
| 224 | static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, |
| 225 | ssize_t (*handler)(struct atkbd *, char *)); |
| 226 | static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, |
| 227 | ssize_t (*handler)(struct atkbd *, const char *, size_t)); |
| 228 | #define ATKBD_DEFINE_ATTR(_name) \ |
| 229 | static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ |
| 230 | static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \ |
Yani Ioannou | e404e27 | 2005-05-17 06:42:58 -0400 | [diff] [blame] | 231 | static ssize_t atkbd_do_show_##_name(struct device *d, struct device_attribute *attr, char *b) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | { \ |
| 233 | return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ |
| 234 | } \ |
Yani Ioannou | e404e27 | 2005-05-17 06:42:58 -0400 | [diff] [blame] | 235 | static ssize_t atkbd_do_set_##_name(struct device *d, struct device_attribute *attr, const char *b, size_t s) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | { \ |
| 237 | return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \ |
| 238 | } \ |
Dmitry Torokhov | d083e90 | 2005-05-29 02:28:42 -0500 | [diff] [blame] | 239 | static struct device_attribute atkbd_attr_##_name = \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name); |
| 241 | |
| 242 | ATKBD_DEFINE_ATTR(extra); |
| 243 | ATKBD_DEFINE_ATTR(scroll); |
| 244 | ATKBD_DEFINE_ATTR(set); |
| 245 | ATKBD_DEFINE_ATTR(softrepeat); |
| 246 | ATKBD_DEFINE_ATTR(softraw); |
| 247 | |
| 248 | |
| 249 | static void atkbd_report_key(struct input_dev *dev, struct pt_regs *regs, int code, int value) |
| 250 | { |
| 251 | input_regs(dev, regs); |
| 252 | if (value == 3) { |
| 253 | input_report_key(dev, code, 1); |
| 254 | input_sync(dev); |
| 255 | input_report_key(dev, code, 0); |
| 256 | } else |
| 257 | input_event(dev, EV_KEY, code, value); |
| 258 | input_sync(dev); |
| 259 | } |
| 260 | |
| 261 | /* |
| 262 | * atkbd_interrupt(). Here takes place processing of data received from |
| 263 | * the keyboard into events. |
| 264 | */ |
| 265 | |
| 266 | static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, |
| 267 | unsigned int flags, struct pt_regs *regs) |
| 268 | { |
| 269 | struct atkbd *atkbd = serio_get_drvdata(serio); |
| 270 | unsigned int code = data; |
| 271 | int scroll = 0, hscroll = 0, click = -1; |
| 272 | int value; |
| 273 | |
| 274 | #ifdef ATKBD_DEBUG |
| 275 | printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags); |
| 276 | #endif |
| 277 | |
| 278 | #if !defined(__i386__) && !defined (__x86_64__) |
| 279 | if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) { |
| 280 | printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags); |
| 281 | serio_write(serio, ATKBD_CMD_RESEND); |
| 282 | atkbd->resend = 1; |
| 283 | goto out; |
| 284 | } |
| 285 | |
| 286 | if (!flags && data == ATKBD_RET_ACK) |
| 287 | atkbd->resend = 0; |
| 288 | #endif |
| 289 | |
| 290 | if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK)) |
| 291 | if (ps2_handle_ack(&atkbd->ps2dev, data)) |
| 292 | goto out; |
| 293 | |
| 294 | if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD)) |
| 295 | if (ps2_handle_response(&atkbd->ps2dev, data)) |
| 296 | goto out; |
| 297 | |
| 298 | if (!atkbd->enabled) |
| 299 | goto out; |
| 300 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 301 | input_event(atkbd->dev, EV_MSC, MSC_RAW, code); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | |
| 303 | if (atkbd->translated) { |
| 304 | |
| 305 | if (atkbd->emul || |
Vojtech Pavlik | 9b104c1 | 2006-03-14 00:09:52 -0500 | [diff] [blame] | 306 | (code != ATKBD_RET_EMUL0 && code != ATKBD_RET_EMUL1 && |
| 307 | code != ATKBD_RET_HANGUEL && code != ATKBD_RET_HANJA && |
| 308 | (code != ATKBD_RET_ERR || atkbd->err_xl) && |
| 309 | (code != ATKBD_RET_BAT || atkbd->bat_xl))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | atkbd->release = code >> 7; |
| 311 | code &= 0x7f; |
| 312 | } |
| 313 | |
Vojtech Pavlik | 903b126 | 2005-09-05 00:11:41 -0500 | [diff] [blame] | 314 | if (!atkbd->emul) { |
| 315 | if ((code & 0x7f) == (ATKBD_RET_BAT & 0x7f)) |
Vojtech Pavlik | 9b104c1 | 2006-03-14 00:09:52 -0500 | [diff] [blame] | 316 | atkbd->bat_xl = !(data >> 7); |
Vojtech Pavlik | 903b126 | 2005-09-05 00:11:41 -0500 | [diff] [blame] | 317 | if ((code & 0x7f) == (ATKBD_RET_ERR & 0x7f)) |
Vojtech Pavlik | 9b104c1 | 2006-03-14 00:09:52 -0500 | [diff] [blame] | 318 | atkbd->err_xl = !(data >> 7); |
Vojtech Pavlik | 903b126 | 2005-09-05 00:11:41 -0500 | [diff] [blame] | 319 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | switch (code) { |
| 323 | case ATKBD_RET_BAT: |
| 324 | atkbd->enabled = 0; |
Dmitry Torokhov | dbc2634 | 2006-01-05 23:00:13 -0500 | [diff] [blame] | 325 | serio_reconnect(atkbd->ps2dev.serio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | goto out; |
| 327 | case ATKBD_RET_EMUL0: |
| 328 | atkbd->emul = 1; |
| 329 | goto out; |
| 330 | case ATKBD_RET_EMUL1: |
| 331 | atkbd->emul = 2; |
| 332 | goto out; |
| 333 | case ATKBD_RET_RELEASE: |
| 334 | atkbd->release = 1; |
| 335 | goto out; |
| 336 | case ATKBD_RET_HANGUEL: |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 337 | atkbd_report_key(atkbd->dev, regs, KEY_HANGUEL, 3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | goto out; |
| 339 | case ATKBD_RET_HANJA: |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 340 | atkbd_report_key(atkbd->dev, regs, KEY_HANJA, 3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | goto out; |
| 342 | case ATKBD_RET_ERR: |
| 343 | printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys); |
| 344 | goto out; |
| 345 | } |
| 346 | |
| 347 | if (atkbd->set != 3) |
| 348 | code = (code & 0x7f) | ((code & 0x80) << 1); |
| 349 | if (atkbd->emul) { |
| 350 | if (--atkbd->emul) |
| 351 | goto out; |
| 352 | code |= (atkbd->set != 3) ? 0x80 : 0x100; |
| 353 | } |
| 354 | |
| 355 | if (atkbd->keycode[code] != ATKBD_KEY_NULL) |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 356 | input_event(atkbd->dev, EV_MSC, MSC_SCAN, code); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
| 358 | switch (atkbd->keycode[code]) { |
| 359 | case ATKBD_KEY_NULL: |
| 360 | break; |
| 361 | case ATKBD_KEY_UNKNOWN: |
| 362 | if (data == ATKBD_RET_ACK || data == ATKBD_RET_NAK) { |
| 363 | printk(KERN_WARNING "atkbd.c: Spurious %s on %s. Some program, " |
| 364 | "like XFree86, might be trying access hardware directly.\n", |
| 365 | data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); |
| 366 | } else { |
| 367 | printk(KERN_WARNING "atkbd.c: Unknown key %s " |
| 368 | "(%s set %d, code %#x on %s).\n", |
| 369 | atkbd->release ? "released" : "pressed", |
| 370 | atkbd->translated ? "translated" : "raw", |
| 371 | atkbd->set, code, serio->phys); |
| 372 | printk(KERN_WARNING "atkbd.c: Use 'setkeycodes %s%02x <keycode>' " |
| 373 | "to make it known.\n", |
| 374 | code & 0x80 ? "e0" : "", code & 0x7f); |
| 375 | } |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 376 | input_sync(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | break; |
| 378 | case ATKBD_SCR_1: |
| 379 | scroll = 1 - atkbd->release * 2; |
| 380 | break; |
| 381 | case ATKBD_SCR_2: |
| 382 | scroll = 2 - atkbd->release * 4; |
| 383 | break; |
| 384 | case ATKBD_SCR_4: |
| 385 | scroll = 4 - atkbd->release * 8; |
| 386 | break; |
| 387 | case ATKBD_SCR_8: |
| 388 | scroll = 8 - atkbd->release * 16; |
| 389 | break; |
| 390 | case ATKBD_SCR_CLICK: |
| 391 | click = !atkbd->release; |
| 392 | break; |
| 393 | case ATKBD_SCR_LEFT: |
| 394 | hscroll = -1; |
| 395 | break; |
| 396 | case ATKBD_SCR_RIGHT: |
| 397 | hscroll = 1; |
| 398 | break; |
| 399 | default: |
| 400 | value = atkbd->release ? 0 : |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 401 | (1 + (!atkbd->softrepeat && test_bit(atkbd->keycode[code], atkbd->dev->key))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | |
Dmitry Torokhov | d083e90 | 2005-05-29 02:28:42 -0500 | [diff] [blame] | 403 | switch (value) { /* Workaround Toshiba laptop multiple keypress */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | case 0: |
| 405 | atkbd->last = 0; |
| 406 | break; |
| 407 | case 1: |
| 408 | atkbd->last = code; |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 409 | atkbd->time = jiffies + msecs_to_jiffies(atkbd->dev->rep[REP_DELAY]) / 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | break; |
| 411 | case 2: |
| 412 | if (!time_after(jiffies, atkbd->time) && atkbd->last == code) |
| 413 | value = 1; |
| 414 | break; |
| 415 | } |
| 416 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 417 | atkbd_report_key(atkbd->dev, regs, atkbd->keycode[code], value); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | if (atkbd->scroll) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 421 | input_regs(atkbd->dev, regs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | if (click != -1) |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 423 | input_report_key(atkbd->dev, BTN_MIDDLE, click); |
| 424 | input_report_rel(atkbd->dev, REL_WHEEL, scroll); |
| 425 | input_report_rel(atkbd->dev, REL_HWHEEL, hscroll); |
| 426 | input_sync(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | } |
| 428 | |
| 429 | atkbd->release = 0; |
| 430 | out: |
| 431 | return IRQ_HANDLED; |
| 432 | } |
| 433 | |
| 434 | /* |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 435 | * atkbd_event_work() is used to complete processing of events that |
| 436 | * can not be processed by input_event() which is often called from |
| 437 | * interrupt context. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | */ |
| 439 | |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 440 | static void atkbd_event_work(void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | const short period[32] = |
| 443 | { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125, |
| 444 | 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 }; |
| 445 | const short delay[4] = |
| 446 | { 250, 500, 750, 1000 }; |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 447 | |
| 448 | struct atkbd *atkbd = data; |
| 449 | struct input_dev *dev = atkbd->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | unsigned char param[2]; |
| 451 | int i, j; |
| 452 | |
Ingo Molnar | 33d3f07 | 2006-02-19 00:22:18 -0500 | [diff] [blame] | 453 | mutex_lock(&atkbd->event_mutex); |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 454 | |
| 455 | if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) { |
| 456 | param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0) |
| 457 | | (test_bit(LED_NUML, dev->led) ? 2 : 0) |
| 458 | | (test_bit(LED_CAPSL, dev->led) ? 4 : 0); |
| 459 | ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS); |
| 460 | |
| 461 | if (atkbd->extra) { |
| 462 | param[0] = 0; |
| 463 | param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0) |
| 464 | | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0) |
| 465 | | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0) |
| 466 | | (test_bit(LED_MISC, dev->led) ? 0x10 : 0) |
| 467 | | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0); |
| 468 | ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS); |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) { |
| 473 | i = j = 0; |
| 474 | while (i < 31 && period[i] < dev->rep[REP_PERIOD]) |
| 475 | i++; |
| 476 | while (j < 3 && delay[j] < dev->rep[REP_DELAY]) |
| 477 | j++; |
| 478 | dev->rep[REP_PERIOD] = period[i]; |
| 479 | dev->rep[REP_DELAY] = delay[j]; |
| 480 | param[0] = i | (j << 5); |
| 481 | ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETREP); |
| 482 | } |
| 483 | |
Ingo Molnar | 33d3f07 | 2006-02-19 00:22:18 -0500 | [diff] [blame] | 484 | mutex_unlock(&atkbd->event_mutex); |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 485 | } |
| 486 | |
| 487 | /* |
| 488 | * Event callback from the input module. Events that change the state of |
| 489 | * the hardware are processed here. If action can not be performed in |
| 490 | * interrupt context it is offloaded to atkbd_event_work. |
| 491 | */ |
| 492 | |
| 493 | static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) |
| 494 | { |
| 495 | struct atkbd *atkbd = dev->private; |
| 496 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | if (!atkbd->write) |
| 498 | return -1; |
| 499 | |
| 500 | switch (type) { |
| 501 | |
| 502 | case EV_LED: |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 503 | set_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask); |
| 504 | wmb(); |
| 505 | schedule_work(&atkbd->event_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | return 0; |
| 507 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | case EV_REP: |
| 509 | |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 510 | if (!atkbd->softrepeat) { |
| 511 | set_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask); |
| 512 | wmb(); |
| 513 | schedule_work(&atkbd->event_work); |
| 514 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | |
| 516 | return 0; |
| 517 | } |
| 518 | |
| 519 | return -1; |
| 520 | } |
| 521 | |
| 522 | /* |
| 523 | * atkbd_enable() signals that interrupt handler is allowed to |
| 524 | * generate input events. |
| 525 | */ |
| 526 | |
| 527 | static inline void atkbd_enable(struct atkbd *atkbd) |
| 528 | { |
| 529 | serio_pause_rx(atkbd->ps2dev.serio); |
| 530 | atkbd->enabled = 1; |
| 531 | serio_continue_rx(atkbd->ps2dev.serio); |
| 532 | } |
| 533 | |
| 534 | /* |
| 535 | * atkbd_disable() tells input handler that all incoming data except |
| 536 | * for ACKs and command response should be dropped. |
| 537 | */ |
| 538 | |
| 539 | static inline void atkbd_disable(struct atkbd *atkbd) |
| 540 | { |
| 541 | serio_pause_rx(atkbd->ps2dev.serio); |
| 542 | atkbd->enabled = 0; |
| 543 | serio_continue_rx(atkbd->ps2dev.serio); |
| 544 | } |
| 545 | |
| 546 | /* |
| 547 | * atkbd_probe() probes for an AT keyboard on a serio port. |
| 548 | */ |
| 549 | |
| 550 | static int atkbd_probe(struct atkbd *atkbd) |
| 551 | { |
| 552 | struct ps2dev *ps2dev = &atkbd->ps2dev; |
| 553 | unsigned char param[2]; |
| 554 | |
| 555 | /* |
| 556 | * Some systems, where the bit-twiddling when testing the io-lines of the |
| 557 | * controller may confuse the keyboard need a full reset of the keyboard. On |
| 558 | * these systems the BIOS also usually doesn't do it for us. |
| 559 | */ |
| 560 | |
| 561 | if (atkbd_reset) |
| 562 | if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT)) |
| 563 | printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys); |
| 564 | |
| 565 | /* |
| 566 | * Then we check the keyboard ID. We should get 0xab83 under normal conditions. |
| 567 | * Some keyboards report different values, but the first byte is always 0xab or |
| 568 | * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this |
| 569 | * should make sure we don't try to set the LEDs on it. |
| 570 | */ |
| 571 | |
| 572 | param[0] = param[1] = 0xa5; /* initialize with invalid values */ |
| 573 | if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) { |
| 574 | |
| 575 | /* |
| 576 | * If the get ID command failed, we check if we can at least set the LEDs on |
| 577 | * the keyboard. This should work on every keyboard out there. It also turns |
| 578 | * the LEDs off, which we want anyway. |
| 579 | */ |
| 580 | param[0] = 0; |
| 581 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) |
| 582 | return -1; |
| 583 | atkbd->id = 0xabba; |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | if (param[0] != 0xab && param[0] != 0xac && /* Regular and NCD Sun keyboards */ |
| 588 | param[0] != 0x2b && param[0] != 0x5d && /* Trust keyboard, raw and translated */ |
| 589 | param[0] != 0x60 && param[0] != 0x47) /* NMB SGI keyboard, raw and translated */ |
| 590 | return -1; |
| 591 | |
| 592 | atkbd->id = (param[0] << 8) | param[1]; |
| 593 | |
| 594 | if (atkbd->id == 0xaca1 && atkbd->translated) { |
| 595 | printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n"); |
| 596 | printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n"); |
| 597 | return -1; |
| 598 | } |
| 599 | |
| 600 | return 0; |
| 601 | } |
| 602 | |
| 603 | /* |
| 604 | * atkbd_select_set checks if a keyboard has a working Set 3 support, and |
| 605 | * sets it into that. Unfortunately there are keyboards that can be switched |
| 606 | * to Set 3, but don't work well in that (BTC Multimedia ...) |
| 607 | */ |
| 608 | |
| 609 | static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra) |
| 610 | { |
| 611 | struct ps2dev *ps2dev = &atkbd->ps2dev; |
| 612 | unsigned char param[2]; |
| 613 | |
| 614 | atkbd->extra = 0; |
| 615 | /* |
| 616 | * For known special keyboards we can go ahead and set the correct set. |
| 617 | * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and |
| 618 | * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards. |
| 619 | */ |
| 620 | |
| 621 | if (atkbd->translated) |
| 622 | return 2; |
| 623 | |
| 624 | if (atkbd->id == 0xaca1) { |
| 625 | param[0] = 3; |
| 626 | ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET); |
| 627 | return 3; |
| 628 | } |
| 629 | |
| 630 | if (allow_extra) { |
| 631 | param[0] = 0x71; |
| 632 | if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) { |
| 633 | atkbd->extra = 1; |
| 634 | return 2; |
| 635 | } |
| 636 | } |
| 637 | |
| 638 | if (target_set != 3) |
| 639 | return 2; |
| 640 | |
| 641 | if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) { |
| 642 | atkbd->id = param[0] << 8 | param[1]; |
| 643 | return 2; |
| 644 | } |
| 645 | |
| 646 | param[0] = 3; |
| 647 | if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) |
| 648 | return 2; |
| 649 | |
| 650 | param[0] = 0; |
| 651 | if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET)) |
| 652 | return 2; |
| 653 | |
| 654 | if (param[0] != 3) { |
| 655 | param[0] = 2; |
| 656 | if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) |
| 657 | return 2; |
| 658 | } |
| 659 | |
| 660 | ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR); |
| 661 | |
| 662 | return 3; |
| 663 | } |
| 664 | |
| 665 | static int atkbd_activate(struct atkbd *atkbd) |
| 666 | { |
| 667 | struct ps2dev *ps2dev = &atkbd->ps2dev; |
| 668 | unsigned char param[1]; |
| 669 | |
| 670 | /* |
| 671 | * Set the LEDs to a defined state. |
| 672 | */ |
| 673 | |
| 674 | param[0] = 0; |
| 675 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) |
| 676 | return -1; |
| 677 | |
| 678 | /* |
| 679 | * Set autorepeat to fastest possible. |
| 680 | */ |
| 681 | |
| 682 | param[0] = 0; |
| 683 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP)) |
| 684 | return -1; |
| 685 | |
| 686 | /* |
| 687 | * Enable the keyboard to receive keystrokes. |
| 688 | */ |
| 689 | |
| 690 | if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) { |
| 691 | printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", |
| 692 | ps2dev->serio->phys); |
| 693 | return -1; |
| 694 | } |
| 695 | |
| 696 | return 0; |
| 697 | } |
| 698 | |
| 699 | /* |
| 700 | * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a |
| 701 | * reboot. |
| 702 | */ |
| 703 | |
| 704 | static void atkbd_cleanup(struct serio *serio) |
| 705 | { |
| 706 | struct atkbd *atkbd = serio_get_drvdata(serio); |
| 707 | ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT); |
| 708 | } |
| 709 | |
| 710 | |
| 711 | /* |
| 712 | * atkbd_disconnect() closes and frees. |
| 713 | */ |
| 714 | |
| 715 | static void atkbd_disconnect(struct serio *serio) |
| 716 | { |
| 717 | struct atkbd *atkbd = serio_get_drvdata(serio); |
| 718 | |
| 719 | atkbd_disable(atkbd); |
| 720 | |
| 721 | /* make sure we don't have a command in flight */ |
Paul E. McKenney | fbd568a3e | 2005-05-01 08:59:04 -0700 | [diff] [blame] | 722 | synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | flush_scheduled_work(); |
| 724 | |
| 725 | device_remove_file(&serio->dev, &atkbd_attr_extra); |
| 726 | device_remove_file(&serio->dev, &atkbd_attr_scroll); |
| 727 | device_remove_file(&serio->dev, &atkbd_attr_set); |
| 728 | device_remove_file(&serio->dev, &atkbd_attr_softrepeat); |
| 729 | device_remove_file(&serio->dev, &atkbd_attr_softraw); |
| 730 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 731 | input_unregister_device(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | serio_close(serio); |
| 733 | serio_set_drvdata(serio, NULL); |
| 734 | kfree(atkbd); |
| 735 | } |
| 736 | |
| 737 | |
| 738 | /* |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 739 | * atkbd_set_keycode_table() initializes keyboard's keycode table |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | * according to the selected scancode set |
| 741 | */ |
| 742 | |
| 743 | static void atkbd_set_keycode_table(struct atkbd *atkbd) |
| 744 | { |
| 745 | int i, j; |
| 746 | |
| 747 | memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); |
| 748 | |
| 749 | if (atkbd->translated) { |
| 750 | for (i = 0; i < 128; i++) { |
| 751 | atkbd->keycode[i] = atkbd_set2_keycode[atkbd_unxlate_table[i]]; |
| 752 | atkbd->keycode[i | 0x80] = atkbd_set2_keycode[atkbd_unxlate_table[i] | 0x80]; |
| 753 | if (atkbd->scroll) |
| 754 | for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) |
| 755 | if ((atkbd_unxlate_table[i] | 0x80) == atkbd_scroll_keys[j].set2) |
| 756 | atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; |
| 757 | } |
| 758 | } else if (atkbd->set == 3) { |
| 759 | memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); |
| 760 | } else { |
| 761 | memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); |
| 762 | |
| 763 | if (atkbd->scroll) |
| 764 | for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) |
| 765 | atkbd->keycode[atkbd_scroll_keys[i].set2] = atkbd_scroll_keys[i].keycode; |
| 766 | } |
| 767 | } |
| 768 | |
| 769 | /* |
| 770 | * atkbd_set_device_attrs() sets up keyboard's input device structure |
| 771 | */ |
| 772 | |
| 773 | static void atkbd_set_device_attrs(struct atkbd *atkbd) |
| 774 | { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 775 | struct input_dev *input_dev = atkbd->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | int i; |
| 777 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 778 | if (atkbd->extra) |
| 779 | sprintf(atkbd->name, "AT Set 2 Extra keyboard"); |
| 780 | else |
| 781 | sprintf(atkbd->name, "AT %s Set %d keyboard", |
| 782 | atkbd->translated ? "Translated" : "Raw", atkbd->set); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 784 | sprintf(atkbd->phys, "%s/input0", atkbd->ps2dev.serio->phys); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 786 | input_dev->name = atkbd->name; |
| 787 | input_dev->phys = atkbd->phys; |
| 788 | input_dev->id.bustype = BUS_I8042; |
| 789 | input_dev->id.vendor = 0x0001; |
| 790 | input_dev->id.product = atkbd->translated ? 1 : atkbd->set; |
| 791 | input_dev->id.version = atkbd->id; |
| 792 | input_dev->event = atkbd_event; |
| 793 | input_dev->private = atkbd; |
| 794 | input_dev->cdev.dev = &atkbd->ps2dev.serio->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 796 | input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_MSC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | |
| 798 | if (atkbd->write) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 799 | input_dev->evbit[0] |= BIT(EV_LED); |
| 800 | input_dev->ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | } |
| 802 | |
| 803 | if (atkbd->extra) |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 804 | input_dev->ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC); |
| 806 | |
| 807 | if (!atkbd->softrepeat) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 808 | input_dev->rep[REP_DELAY] = 250; |
| 809 | input_dev->rep[REP_PERIOD] = 33; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | } |
| 811 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 812 | input_dev->mscbit[0] = atkbd->softraw ? BIT(MSC_SCAN) : BIT(MSC_RAW) | BIT(MSC_SCAN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | |
| 814 | if (atkbd->scroll) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 815 | input_dev->evbit[0] |= BIT(EV_REL); |
| 816 | input_dev->relbit[0] = BIT(REL_WHEEL) | BIT(REL_HWHEEL); |
| 817 | set_bit(BTN_MIDDLE, input_dev->keybit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | } |
| 819 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 820 | input_dev->keycode = atkbd->keycode; |
| 821 | input_dev->keycodesize = sizeof(unsigned char); |
| 822 | input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | |
| 824 | for (i = 0; i < 512; i++) |
| 825 | if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 826 | set_bit(atkbd->keycode[i], input_dev->keybit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | } |
| 828 | |
| 829 | /* |
| 830 | * atkbd_connect() is called when the serio module finds an interface |
| 831 | * that isn't handled yet by an appropriate device driver. We check if |
| 832 | * there is an AT keyboard out there and if yes, we register ourselves |
| 833 | * to the input module. |
| 834 | */ |
| 835 | |
| 836 | static int atkbd_connect(struct serio *serio, struct serio_driver *drv) |
| 837 | { |
| 838 | struct atkbd *atkbd; |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 839 | struct input_dev *dev; |
| 840 | int err = -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 842 | atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); |
| 843 | dev = input_allocate_device(); |
| 844 | if (!atkbd || !dev) |
| 845 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 847 | atkbd->dev = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | ps2_init(&atkbd->ps2dev, serio); |
Dmitry Torokhov | 0d4c859 | 2005-11-20 00:49:42 -0500 | [diff] [blame] | 849 | INIT_WORK(&atkbd->event_work, atkbd_event_work, atkbd); |
Ingo Molnar | 33d3f07 | 2006-02-19 00:22:18 -0500 | [diff] [blame] | 850 | mutex_init(&atkbd->event_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | |
| 852 | switch (serio->id.type) { |
| 853 | |
| 854 | case SERIO_8042_XL: |
| 855 | atkbd->translated = 1; |
| 856 | case SERIO_8042: |
| 857 | if (serio->write) |
| 858 | atkbd->write = 1; |
| 859 | break; |
| 860 | } |
| 861 | |
| 862 | atkbd->softraw = atkbd_softraw; |
| 863 | atkbd->softrepeat = atkbd_softrepeat; |
| 864 | atkbd->scroll = atkbd_scroll; |
| 865 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | if (atkbd->softrepeat) |
| 867 | atkbd->softraw = 1; |
| 868 | |
| 869 | serio_set_drvdata(serio, atkbd); |
| 870 | |
| 871 | err = serio_open(serio, drv); |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 872 | if (err) |
| 873 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | |
| 875 | if (atkbd->write) { |
| 876 | |
| 877 | if (atkbd_probe(atkbd)) { |
| 878 | serio_close(serio); |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 879 | err = -ENODEV; |
| 880 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | } |
| 882 | |
| 883 | atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); |
| 884 | atkbd_activate(atkbd); |
| 885 | |
| 886 | } else { |
| 887 | atkbd->set = 2; |
| 888 | atkbd->id = 0xab00; |
| 889 | } |
| 890 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | atkbd_set_keycode_table(atkbd); |
| 892 | atkbd_set_device_attrs(atkbd); |
| 893 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | device_create_file(&serio->dev, &atkbd_attr_extra); |
| 895 | device_create_file(&serio->dev, &atkbd_attr_scroll); |
| 896 | device_create_file(&serio->dev, &atkbd_attr_set); |
| 897 | device_create_file(&serio->dev, &atkbd_attr_softrepeat); |
| 898 | device_create_file(&serio->dev, &atkbd_attr_softraw); |
| 899 | |
| 900 | atkbd_enable(atkbd); |
| 901 | |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 902 | input_register_device(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | |
| 904 | return 0; |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 905 | |
| 906 | fail: serio_set_drvdata(serio, NULL); |
| 907 | input_free_device(dev); |
| 908 | kfree(atkbd); |
| 909 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 910 | } |
| 911 | |
| 912 | /* |
| 913 | * atkbd_reconnect() tries to restore keyboard into a sane state and is |
| 914 | * most likely called on resume. |
| 915 | */ |
| 916 | |
| 917 | static int atkbd_reconnect(struct serio *serio) |
| 918 | { |
| 919 | struct atkbd *atkbd = serio_get_drvdata(serio); |
| 920 | struct serio_driver *drv = serio->drv; |
| 921 | unsigned char param[1]; |
| 922 | |
| 923 | if (!atkbd || !drv) { |
| 924 | printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); |
| 925 | return -1; |
| 926 | } |
| 927 | |
| 928 | atkbd_disable(atkbd); |
| 929 | |
| 930 | if (atkbd->write) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 931 | param[0] = (test_bit(LED_SCROLLL, atkbd->dev->led) ? 1 : 0) |
| 932 | | (test_bit(LED_NUML, atkbd->dev->led) ? 2 : 0) |
| 933 | | (test_bit(LED_CAPSL, atkbd->dev->led) ? 4 : 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | |
| 935 | if (atkbd_probe(atkbd)) |
| 936 | return -1; |
| 937 | if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) |
| 938 | return -1; |
| 939 | |
| 940 | atkbd_activate(atkbd); |
| 941 | |
| 942 | if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS)) |
| 943 | return -1; |
| 944 | } |
| 945 | |
| 946 | atkbd_enable(atkbd); |
| 947 | |
| 948 | return 0; |
| 949 | } |
| 950 | |
| 951 | static struct serio_device_id atkbd_serio_ids[] = { |
| 952 | { |
| 953 | .type = SERIO_8042, |
| 954 | .proto = SERIO_ANY, |
| 955 | .id = SERIO_ANY, |
| 956 | .extra = SERIO_ANY, |
| 957 | }, |
| 958 | { |
| 959 | .type = SERIO_8042_XL, |
| 960 | .proto = SERIO_ANY, |
| 961 | .id = SERIO_ANY, |
| 962 | .extra = SERIO_ANY, |
| 963 | }, |
| 964 | { |
| 965 | .type = SERIO_RS232, |
| 966 | .proto = SERIO_PS2SER, |
| 967 | .id = SERIO_ANY, |
| 968 | .extra = SERIO_ANY, |
| 969 | }, |
| 970 | { 0 } |
| 971 | }; |
| 972 | |
| 973 | MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); |
| 974 | |
| 975 | static struct serio_driver atkbd_drv = { |
| 976 | .driver = { |
| 977 | .name = "atkbd", |
| 978 | }, |
| 979 | .description = DRIVER_DESC, |
| 980 | .id_table = atkbd_serio_ids, |
| 981 | .interrupt = atkbd_interrupt, |
| 982 | .connect = atkbd_connect, |
| 983 | .reconnect = atkbd_reconnect, |
| 984 | .disconnect = atkbd_disconnect, |
| 985 | .cleanup = atkbd_cleanup, |
| 986 | }; |
| 987 | |
| 988 | static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, |
| 989 | ssize_t (*handler)(struct atkbd *, char *)) |
| 990 | { |
| 991 | struct serio *serio = to_serio_port(dev); |
| 992 | int retval; |
| 993 | |
| 994 | retval = serio_pin_driver(serio); |
| 995 | if (retval) |
| 996 | return retval; |
| 997 | |
| 998 | if (serio->drv != &atkbd_drv) { |
| 999 | retval = -ENODEV; |
| 1000 | goto out; |
| 1001 | } |
| 1002 | |
| 1003 | retval = handler((struct atkbd *)serio_get_drvdata(serio), buf); |
| 1004 | |
| 1005 | out: |
| 1006 | serio_unpin_driver(serio); |
| 1007 | return retval; |
| 1008 | } |
| 1009 | |
| 1010 | static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, |
| 1011 | ssize_t (*handler)(struct atkbd *, const char *, size_t)) |
| 1012 | { |
| 1013 | struct serio *serio = to_serio_port(dev); |
| 1014 | struct atkbd *atkbd; |
| 1015 | int retval; |
| 1016 | |
| 1017 | retval = serio_pin_driver(serio); |
| 1018 | if (retval) |
| 1019 | return retval; |
| 1020 | |
| 1021 | if (serio->drv != &atkbd_drv) { |
| 1022 | retval = -ENODEV; |
| 1023 | goto out; |
| 1024 | } |
| 1025 | |
| 1026 | atkbd = serio_get_drvdata(serio); |
| 1027 | atkbd_disable(atkbd); |
| 1028 | retval = handler(atkbd, buf, count); |
| 1029 | atkbd_enable(atkbd); |
| 1030 | |
| 1031 | out: |
| 1032 | serio_unpin_driver(serio); |
| 1033 | return retval; |
| 1034 | } |
| 1035 | |
| 1036 | static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf) |
| 1037 | { |
| 1038 | return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0); |
| 1039 | } |
| 1040 | |
| 1041 | static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count) |
| 1042 | { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1043 | struct input_dev *new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | unsigned long value; |
| 1045 | char *rest; |
| 1046 | |
| 1047 | if (!atkbd->write) |
| 1048 | return -EIO; |
| 1049 | |
| 1050 | value = simple_strtoul(buf, &rest, 10); |
| 1051 | if (*rest || value > 1) |
| 1052 | return -EINVAL; |
| 1053 | |
| 1054 | if (atkbd->extra != value) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1055 | /* |
| 1056 | * Since device's properties will change we need to |
| 1057 | * unregister old device. But allocate new one first |
| 1058 | * to make sure we have it. |
| 1059 | */ |
| 1060 | if (!(new_dev = input_allocate_device())) |
| 1061 | return -ENOMEM; |
| 1062 | input_unregister_device(atkbd->dev); |
| 1063 | atkbd->dev = new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); |
| 1065 | atkbd_activate(atkbd); |
| 1066 | atkbd_set_device_attrs(atkbd); |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1067 | input_register_device(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | } |
| 1069 | return count; |
| 1070 | } |
| 1071 | |
| 1072 | static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf) |
| 1073 | { |
| 1074 | return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0); |
| 1075 | } |
| 1076 | |
| 1077 | static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count) |
| 1078 | { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1079 | struct input_dev *new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1080 | unsigned long value; |
| 1081 | char *rest; |
| 1082 | |
| 1083 | value = simple_strtoul(buf, &rest, 10); |
| 1084 | if (*rest || value > 1) |
| 1085 | return -EINVAL; |
| 1086 | |
| 1087 | if (atkbd->scroll != value) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1088 | if (!(new_dev = input_allocate_device())) |
| 1089 | return -ENOMEM; |
| 1090 | input_unregister_device(atkbd->dev); |
| 1091 | atkbd->dev = new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | atkbd->scroll = value; |
| 1093 | atkbd_set_keycode_table(atkbd); |
| 1094 | atkbd_set_device_attrs(atkbd); |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1095 | input_register_device(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | } |
| 1097 | return count; |
| 1098 | } |
| 1099 | |
| 1100 | static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf) |
| 1101 | { |
| 1102 | return sprintf(buf, "%d\n", atkbd->set); |
| 1103 | } |
| 1104 | |
| 1105 | static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count) |
| 1106 | { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1107 | struct input_dev *new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | unsigned long value; |
| 1109 | char *rest; |
| 1110 | |
| 1111 | if (!atkbd->write) |
| 1112 | return -EIO; |
| 1113 | |
| 1114 | value = simple_strtoul(buf, &rest, 10); |
| 1115 | if (*rest || (value != 2 && value != 3)) |
| 1116 | return -EINVAL; |
| 1117 | |
| 1118 | if (atkbd->set != value) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1119 | if (!(new_dev = input_allocate_device())) |
| 1120 | return -ENOMEM; |
| 1121 | input_unregister_device(atkbd->dev); |
| 1122 | atkbd->dev = new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1123 | atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); |
| 1124 | atkbd_activate(atkbd); |
| 1125 | atkbd_set_keycode_table(atkbd); |
| 1126 | atkbd_set_device_attrs(atkbd); |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1127 | input_register_device(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | } |
| 1129 | return count; |
| 1130 | } |
| 1131 | |
| 1132 | static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf) |
| 1133 | { |
| 1134 | return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0); |
| 1135 | } |
| 1136 | |
| 1137 | static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count) |
| 1138 | { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1139 | struct input_dev *new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1140 | unsigned long value; |
| 1141 | char *rest; |
| 1142 | |
| 1143 | if (!atkbd->write) |
| 1144 | return -EIO; |
| 1145 | |
| 1146 | value = simple_strtoul(buf, &rest, 10); |
| 1147 | if (*rest || value > 1) |
| 1148 | return -EINVAL; |
| 1149 | |
| 1150 | if (atkbd->softrepeat != value) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1151 | if (!(new_dev = input_allocate_device())) |
| 1152 | return -ENOMEM; |
| 1153 | input_unregister_device(atkbd->dev); |
| 1154 | atkbd->dev = new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | atkbd->softrepeat = value; |
| 1156 | if (atkbd->softrepeat) |
| 1157 | atkbd->softraw = 1; |
| 1158 | atkbd_set_device_attrs(atkbd); |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1159 | input_register_device(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1160 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | return count; |
| 1162 | } |
| 1163 | |
| 1164 | |
| 1165 | static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf) |
| 1166 | { |
| 1167 | return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0); |
| 1168 | } |
| 1169 | |
| 1170 | static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count) |
| 1171 | { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1172 | struct input_dev *new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1173 | unsigned long value; |
| 1174 | char *rest; |
| 1175 | |
| 1176 | value = simple_strtoul(buf, &rest, 10); |
| 1177 | if (*rest || value > 1) |
| 1178 | return -EINVAL; |
| 1179 | |
| 1180 | if (atkbd->softraw != value) { |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1181 | if (!(new_dev = input_allocate_device())) |
| 1182 | return -ENOMEM; |
| 1183 | input_unregister_device(atkbd->dev); |
| 1184 | atkbd->dev = new_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1185 | atkbd->softraw = value; |
| 1186 | atkbd_set_device_attrs(atkbd); |
Dmitry Torokhov | 3c42f0c | 2005-09-15 02:01:45 -0500 | [diff] [blame] | 1187 | input_register_device(atkbd->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1188 | } |
| 1189 | return count; |
| 1190 | } |
| 1191 | |
| 1192 | |
| 1193 | static int __init atkbd_init(void) |
| 1194 | { |
| 1195 | serio_register_driver(&atkbd_drv); |
| 1196 | return 0; |
| 1197 | } |
| 1198 | |
| 1199 | static void __exit atkbd_exit(void) |
| 1200 | { |
| 1201 | serio_unregister_driver(&atkbd_drv); |
| 1202 | } |
| 1203 | |
| 1204 | module_init(atkbd_init); |
| 1205 | module_exit(atkbd_exit); |