Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263234AbUCPQBh (ORCPT ); Tue, 16 Mar 2004 11:01:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261999AbUCPO3o (ORCPT ); Tue, 16 Mar 2004 09:29:44 -0500 Received: from styx.suse.cz ([82.208.2.94]:130 "EHLO shadow.ucw.cz") by vger.kernel.org with ESMTP id S261931AbUCPOTu convert rfc822-to-8bit (ORCPT ); Tue, 16 Mar 2004 09:19:50 -0500 Content-Transfer-Encoding: 8BIT Message-Id: <10794467773966@twilight.ucw.cz> Content-Type: text/plain; charset="iso-8859-1" Subject: [PATCH 27/44] Add DEC LK201/LK401 keyboard support X-Mailer: gregkh_patchbomb_levon_offspring To: torvalds@osdl.org, vojtech@ucw.cz, linux-kernel@vger.kernel.org Mime-Version: 1.0 Date: Tue, 16 Mar 2004 15:19:37 +0100 In-Reply-To: <1079446777108@twilight.ucw.cz> From: Vojtech Pavlik Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 18930 Lines: 685 You can pull this changeset from: bk://kernel.bkbits.net/vojtech/input =================================================================== ChangeSet@1.1608.56.5, 2004-03-03 17:16:24+01:00, jbglaw@lug-owl.de input: Add DEC LK201/LK401 keyboard support Kconfig | 13 + Makefile | 1 lkkbd.c | 625 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 639 insertions(+) =================================================================== diff -Nru a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig --- a/drivers/input/keyboard/Kconfig Tue Mar 16 13:18:26 2004 +++ b/drivers/input/keyboard/Kconfig Tue Mar 16 13:18:26 2004 @@ -41,6 +41,19 @@ To compile this driver as a module, choose M here: the module will be called sunkbd. +config KEYBOARD_LKKBD + tristate "DECstation/VAXstation LK201/LK401 keyboard support" + depends on INPUT && INPUT_KEYBOARD + select SERIO + help + Say Y here if you want to use a LK201 or LK401 style serial + keyboard. This keyboard is also useable on PCs if you attach + it with the inputattach program. The connector pinout is + described within lkkbd.c. + + To compile this driver as a module, choose M here: the + module will be called lkkbd. + config KEYBOARD_XTKBD tristate "XT Keyboard support" depends on INPUT && INPUT_KEYBOARD diff -Nru a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile --- a/drivers/input/keyboard/Makefile Tue Mar 16 13:18:26 2004 +++ b/drivers/input/keyboard/Makefile Tue Mar 16 13:18:26 2004 @@ -7,6 +7,7 @@ obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o +obj-$(CONFIG_KEYBOARD_LKKBD) += lkkbd.o obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o diff -Nru a/drivers/input/keyboard/lkkbd.c b/drivers/input/keyboard/lkkbd.c --- /dev/null Wed Dec 31 16:00:00 1969 +++ b/drivers/input/keyboard/lkkbd.c Tue Mar 16 13:18:26 2004 @@ -0,0 +1,625 @@ +/* + * Copyright (C) 2004 by Jan-Benedict Glaw + */ + +/* + * LK keyboard driver for Linux, based on sunkbd.c (C) by Vojtech Pavlik + */ + +/* + * DEC LK201 and LK401 keyboard driver for Linux (primary for DECstations + * and VAXstations, but can also be used on any standard RS232 with an + * adaptor). + * + * DISCLAUNER: This works for _me_. If you break anything by using the + * information given below, I will _not_ be lieable! + * + * RJ11 pinout: To DB9: Or DB25: + * 1 - RxD <----> Pin 3 (TxD) <-> Pin 2 (TxD) + * 2 - GND <----> Pin 5 (GND) <-> Pin 7 (GND) + * 4 - TxD <----> Pin 2 (RxD) <-> Pin 3 (RxD) + * 3 - +12V (from HDD drive connector), DON'T connect to DB9 or DB25!!! + * + * Pin numbers for DB9 and DB25 are noted on the plug (quite small:). For + * RJ11, it's like this: + * + * __=__ Hold the plug in front of you, cable downwards, + * /___/| nose is hidden behind the plug. Now, pin 1 is at + * |1234|| the left side, pin 4 at the right and 2 and 3 are + * |IIII|| in between, of course:) + * | || + * |____|/ + * || So the adaptor consists of three connected cables + * || for data transmission (RxD and TxD) and signal ground. + * Additionally, you have to get +12V from somewhere. + * Most easily, you'll get that from a floppy or HDD power connector. + * It's the yellow cable there (black is ground and red is +5V). + */ + +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Should you need to contact me, the author, you can do so either by + * email or by paper mail: + * Jan-Benedict Glaw, Lilienstra?e 16, 33790 H?rste (near Halle/Westf.), + * Germany. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +MODULE_AUTHOR ("Jan-Benedict Glaw "); +MODULE_DESCRIPTION ("LK keyboard driver"); +MODULE_LICENSE ("GPL"); + +/* + * Known parameters: + * bell_volume + * keyclick_volume + * ctrlclick_volume + * + * Please notice that there's not yet an API to set these at runtime. + */ +static int bell_volume = 100; /* % */ +module_param (bell_volume, int, 0); +MODULE_PARM_DESC (bell_volume, "Bell volume (in %). default is 100%"); + +static int keyclick_volume = 100; /* % */ +module_param (keyclick_volume, int, 0); +MODULE_PARM_DESC (keyclick_volume, "Keyclick volume (in %), default is 100%"); + +static int ctrlclick_volume = 100; /* % */ +module_param (ctrlclick_volume, int, 0); +MODULE_PARM_DESC (ctrlclick_volume, "Ctrlclick volume (in %), default is 100%"); + + + +#undef LKKBD_DEBUG +#ifdef LKKBD_DEBUG +#define DBG(x...) printk (x) +#else +#define DBG(x...) do {} while (0) +#endif + +/* LED control */ +#define LK_LED_WAIT 0x81 +#define LK_LED_COMPOSE 0x82 +#define LK_LED_SHIFTLOCK 0x84 +#define LK_LED_SCROLLLOCK 0x88 +#define LK_CMD_LED_ON 0x13 +#define LK_CMD_LED_OFF 0x11 + +/* Mode control */ +#define LK_MODE_DOWN 0x80 +#define LK_MODE_AUTODOWN 0x82 +#define LK_MODE_UPDOWN 0x86 +#define LK_CMD_SET_MODE(mode,div) ((mode) | ((div) << 3)) + +/* Misc commands */ +#define LK_CMD_ENABLE_KEYCLICK 0x1b +#define LK_CMD_DISABLE_KEYCLICK 0x99 +#define LK_CMD_DISABLE_BELL 0xa1 +#define LK_CMD_SOUND_BELL 0xa7 +#define LK_CMD_ENABLE_BELL 0x23 +#define LK_CMD_DISABLE_CTRCLICK 0xb9 +#define LK_CMD_ENABLE_CTRCLICK 0xbb +#define LK_CMD_SET_DEFAULTS 0xd3 +#define LK_CMD_POWERCYCLE_RESET 0xfd +#define LK_CMD_ENABLE_LK401 0xe9 + +/* Misc responses from keyboard */ +#define LK_ALL_KEYS_UP 0xb3 +#define LK_METRONOME 0xb4 +#define LK_OUTPUT_ERROR 0xb5 +#define LK_INPUT_ERROR 0xb6 +#define LK_KBD_LOCKED 0xb7 +#define LK_KBD_TEST_MODE_ACK 0xb8 +#define LK_PREFIX_KEY_DOWN 0xb9 +#define LK_MODE_CHANGE_ACK 0xba +#define LK_RESPONSE_RESERVED 0xbb + +#define LK_NUM_KEYCODES 256 +typedef u_int16_t lk_keycode_t; + + + +static lk_keycode_t lkkbd_keycode[LK_NUM_KEYCODES] = { + [0x56] = KEY_F1, + [0x57] = KEY_F2, + [0x58] = KEY_F3, + [0x59] = KEY_F4, + [0x5a] = KEY_F5, + [0x64] = KEY_F6, + [0x65] = KEY_F7, + [0x66] = KEY_F8, + [0x67] = KEY_F9, + [0x68] = KEY_F10, + [0x71] = KEY_F11, + [0x72] = KEY_F12, + [0x73] = KEY_F13, + [0x74] = KEY_F14, + [0x7c] = KEY_F15, + [0x7d] = KEY_F16, + [0x80] = KEY_F17, + [0x81] = KEY_F18, + [0x82] = KEY_F19, + [0x83] = KEY_F20, + [0x8a] = KEY_FIND, + [0x8b] = KEY_INSERT, + [0x8c] = KEY_DELETE, + [0x8d] = KEY_SELECT, + [0x8e] = KEY_PAGEUP, + [0x8f] = KEY_PAGEDOWN, + [0x92] = KEY_KP0, + [0x94] = KEY_KPDOT, + [0x95] = KEY_KPENTER, + [0x96] = KEY_KP1, + [0x97] = KEY_KP2, + [0x98] = KEY_KP3, + [0x99] = KEY_KP4, + [0x9a] = KEY_KP5, + [0x9b] = KEY_KP6, + [0x9c] = KEY_KPCOMMA, + [0x9d] = KEY_KP7, + [0x9e] = KEY_KP8, + [0x9f] = KEY_KP9, + [0xa0] = KEY_KPMINUS, + [0xa1] = KEY_PROG1, + [0xa2] = KEY_PROG2, + [0xa3] = KEY_PROG3, + [0xa4] = KEY_PROG4, + [0xa7] = KEY_LEFT, + [0xa8] = KEY_RIGHT, + [0xa9] = KEY_DOWN, + [0xaa] = KEY_UP, + [0xab] = KEY_RIGHTSHIFT, + [0xac] = KEY_LEFTALT, + [0xad] = KEY_COMPOSE, /* Right Compose, that is. */ + [0xae] = KEY_LEFTSHIFT, /* Same as KEY_RIGHTSHIFT on LK201 */ + [0xaf] = KEY_LEFTCTRL, + [0xb0] = KEY_CAPSLOCK, + [0xb1] = KEY_COMPOSE, /* Left Compose, that is. */ + [0xb2] = KEY_RIGHTALT, + [0xbc] = KEY_BACKSPACE, + [0xbd] = KEY_ENTER, + [0xbe] = KEY_TAB, + [0xbf] = KEY_ESC, + [0xc0] = KEY_1, + [0xc1] = KEY_Q, + [0xc2] = KEY_A, + [0xc3] = KEY_Z, + [0xc5] = KEY_2, + [0xc6] = KEY_W, + [0xc7] = KEY_S, + [0xc8] = KEY_X, + [0xc9] = KEY_102ND, + [0xcb] = KEY_3, + [0xcc] = KEY_E, + [0xcd] = KEY_D, + [0xce] = KEY_C, + [0xd0] = KEY_4, + [0xd1] = KEY_R, + [0xd2] = KEY_F, + [0xd3] = KEY_V, + [0xd4] = KEY_SPACE, + [0xd6] = KEY_5, + [0xd7] = KEY_T, + [0xd8] = KEY_G, + [0xd9] = KEY_B, + [0xdb] = KEY_6, + [0xdc] = KEY_Y, + [0xdd] = KEY_H, + [0xde] = KEY_N, + [0xe0] = KEY_7, + [0xe1] = KEY_U, + [0xe2] = KEY_J, + [0xe3] = KEY_M, + [0xe5] = KEY_8, + [0xe6] = KEY_I, + [0xe7] = KEY_K, + [0xe8] = KEY_COMMA, + [0xea] = KEY_9, + [0xeb] = KEY_O, + [0xec] = KEY_L, + [0xed] = KEY_DOT, + [0xef] = KEY_0, + [0xf0] = KEY_P, + [0xf2] = KEY_SEMICOLON, + [0xf3] = KEY_SLASH, + [0xf5] = KEY_EQUAL, + [0xf6] = KEY_RIGHTBRACE, + [0xf7] = KEY_BACKSLASH, + [0xf9] = KEY_MINUS, + [0xfa] = KEY_LEFTBRACE, + [0xfb] = KEY_APOSTROPHE, +}; + +#define CHECK_LED(LED, BITS) do { \ + if (test_bit (LED, lk->dev.led)) \ + leds_on |= BITS; \ + else \ + leds_off |= BITS; \ + } while (0) + +/* + * Per-keyboard data + */ +struct lkkbd { + lk_keycode_t keycode[LK_NUM_KEYCODES]; + int ignore_bytes; + struct input_dev dev; + struct serio *serio; + struct work_struct tq; + char name[64]; + char phys[32]; + char type; + int bell_volume; + int keyclick_volume; + int ctrlclick_volume; +}; + +/* + * Calculate volume parameter byte for a given volume. + */ +static unsigned char +volume_to_hw (int volume_percent) +{ + unsigned char ret = 0; + + if (volume_percent < 0) + volume_percent = 0; + if (volume_percent > 100) + volume_percent = 100; + + if (volume_percent >= 0) + ret = 7; + if (volume_percent >= 13) /* 12.5 */ + ret = 6; + if (volume_percent >= 25) + ret = 5; + if (volume_percent >= 38) /* 37.5 */ + ret = 4; + if (volume_percent >= 50) + ret = 3; + if (volume_percent >= 63) /* 62.5 */ + ret = 2; /* This is the default volume */ + if (volume_percent >= 75) + ret = 1; + if (volume_percent >= 88) /* 87.5 */ + ret = 0; + + ret |= 0x80; + + return ret; +} + +/* + * lkkbd_interrupt() is called by the low level driver when a character + * is received. + */ +static irqreturn_t +lkkbd_interrupt (struct serio *serio, unsigned char data, unsigned int flags, + struct pt_regs *regs) +{ + struct lkkbd *lk = serio->private; + int i; + + DBG (KERN_INFO "Got byte 0x%02x\n", data); + + if (lk->ignore_bytes > 0) { + DBG (KERN_INFO "Ignoring a byte on %s\n", + lk->name); + lk->ignore_bytes--; + return IRQ_HANDLED; + } + + switch (data) { + case LK_ALL_KEYS_UP: + input_regs (&lk->dev, regs); + for (i = 0; i < ARRAY_SIZE (lkkbd_keycode); i++) + if (lk->keycode[i] != KEY_RESERVED) + input_report_key (&lk->dev, lk->keycode[i], 0); + input_sync (&lk->dev); + break; + case LK_METRONOME: + DBG (KERN_INFO "Got LK_METRONOME and don't " + "know how to handle...\n"); + break; + case LK_OUTPUT_ERROR: + DBG (KERN_INFO "Got LK_OUTPUT_ERROR and don't " + "know how to handle...\n"); + break; + case LK_INPUT_ERROR: + DBG (KERN_INFO "Got LK_INPUT_ERROR and don't " + "know how to handle...\n"); + break; + case LK_KBD_LOCKED: + DBG (KERN_INFO "Got LK_KBD_LOCKED and don't " + "know how to handle...\n"); + break; + case LK_KBD_TEST_MODE_ACK: + DBG (KERN_INFO "Got LK_KBD_TEST_MODE_ACK and don't " + "know how to handle...\n"); + break; + case LK_PREFIX_KEY_DOWN: + DBG (KERN_INFO "Got LK_PREFIX_KEY_DOWN and don't " + "know how to handle...\n"); + break; + case LK_MODE_CHANGE_ACK: + DBG (KERN_INFO "Got LK_MODE_CHANGE_ACK and ignored " + "it properly...\n"); + break; + case LK_RESPONSE_RESERVED: + DBG (KERN_INFO "Got LK_RESPONSE_RESERVED and don't " + "know how to handle...\n"); + break; + case 0x01: + DBG (KERN_INFO "Got 0x01, scheduling re-initialization\n"); + lk->ignore_bytes = 3; + schedule_work (&lk->tq); + break; + + default: + if (lk->keycode[data] != KEY_RESERVED) { + input_regs (&lk->dev, regs); + if (!test_bit (lk->keycode[data], lk->dev.key)) + input_report_key (&lk->dev, lk->keycode[data], 1); + else + input_report_key (&lk->dev, lk->keycode[data], 0); + input_sync (&lk->dev); + } else + printk (KERN_WARNING "%s: Unknown key with " + "scancode %02x on %s.\n", + __FILE__, data, lk->name); + } + + return IRQ_HANDLED; +} + +/* + * lkkbd_event() handles events from the input module. + */ +static int +lkkbd_event (struct input_dev *dev, unsigned int type, unsigned int code, + int value) +{ + struct lkkbd *lk = dev->private; + unsigned char leds_on = 0; + unsigned char leds_off = 0; + + switch (type) { + case EV_LED: + CHECK_LED (LED_CAPSL, LK_LED_SHIFTLOCK); + CHECK_LED (LED_COMPOSE, LK_LED_COMPOSE); + CHECK_LED (LED_SCROLLL, LK_LED_SCROLLLOCK); + CHECK_LED (LED_SLEEP, LK_LED_WAIT); + if (leds_on != 0) { + lk->serio->write (lk->serio, LK_CMD_LED_ON); + lk->serio->write (lk->serio, leds_on); + } + if (leds_off != 0) { + lk->serio->write (lk->serio, LK_CMD_LED_OFF); + lk->serio->write (lk->serio, leds_off); + } + return 0; + + case EV_SND: + switch (code) { + case SND_CLICK: + if (value == 0) { + DBG ("%s: Deactivating key clicks\n", __FUNCTION__); + lk->serio->write (lk->serio, LK_CMD_DISABLE_KEYCLICK); + lk->serio->write (lk->serio, LK_CMD_DISABLE_CTRCLICK); + } else { + DBG ("%s: Activating key clicks\n", __FUNCTION__); + lk->serio->write (lk->serio, LK_CMD_ENABLE_KEYCLICK); + lk->serio->write (lk->serio, volume_to_hw (lk->keyclick_volume)); + lk->serio->write (lk->serio, LK_CMD_ENABLE_CTRCLICK); + lk->serio->write (lk->serio, volume_to_hw (lk->ctrlclick_volume)); + } + return 0; + + case SND_BELL: + if (value != 0) + lk->serio->write (lk->serio, LK_CMD_SOUND_BELL); + + return 0; + } + break; + + default: + printk (KERN_ERR "%s (): Got unknown type %d, code %d, value %d\n", + __FUNCTION__, type, code, value); + } + + return -1; +} + +/* + * lkkbd_reinit() sets leds and beeps to a state the computer remembers they + * were in. + */ +static void +lkkbd_reinit (void *data) +{ + struct lkkbd *lk = data; + int division; + unsigned char leds_on = 0; + unsigned char leds_off = 0; + + /* Reset parameters */ + lk->serio->write (lk->serio, LK_CMD_SET_DEFAULTS); + + /* Set LEDs */ + CHECK_LED (LED_CAPSL, LK_LED_SHIFTLOCK); + CHECK_LED (LED_COMPOSE, LK_LED_COMPOSE); + CHECK_LED (LED_SCROLLL, LK_LED_SCROLLLOCK); + CHECK_LED (LED_SLEEP, LK_LED_WAIT); + if (leds_on != 0) { + lk->serio->write (lk->serio, LK_CMD_LED_ON); + lk->serio->write (lk->serio, leds_on); + } + if (leds_off != 0) { + lk->serio->write (lk->serio, LK_CMD_LED_OFF); + lk->serio->write (lk->serio, leds_off); + } + + /* + * Try to activate extended LK401 mode. This command will + * only work with a LK401 keyboard and grants access to + * LAlt, RAlt, RCompose and RShift. + */ + lk->serio->write (lk->serio, LK_CMD_ENABLE_LK401); + + /* Set all keys to UPDOWN mode */ + for (division = 1; division <= 14; division++) + lk->serio->write (lk->serio, LK_CMD_SET_MODE (LK_MODE_UPDOWN, + division)); + + /* Enable bell and set volume */ + lk->serio->write (lk->serio, LK_CMD_ENABLE_BELL); + lk->serio->write (lk->serio, volume_to_hw (lk->bell_volume)); + + /* Enable/disable keyclick (and possibly set volume) */ + if (test_bit (SND_CLICK, lk->dev.snd)) { + lk->serio->write (lk->serio, LK_CMD_ENABLE_KEYCLICK); + lk->serio->write (lk->serio, volume_to_hw (lk->keyclick_volume)); + lk->serio->write (lk->serio, LK_CMD_ENABLE_CTRCLICK); + lk->serio->write (lk->serio, volume_to_hw (lk->ctrlclick_volume)); + } else { + lk->serio->write (lk->serio, LK_CMD_DISABLE_KEYCLICK); + lk->serio->write (lk->serio, LK_CMD_DISABLE_CTRCLICK); + } + + /* Sound the bell if needed */ + if (test_bit (SND_BELL, lk->dev.snd)) + lk->serio->write (lk->serio, LK_CMD_SOUND_BELL); +} + +/* + * lkkbd_connect() probes for a LK keyboard and fills the necessary structures. + */ +static void +lkkbd_connect (struct serio *serio, struct serio_dev *dev) +{ + struct lkkbd *lk; + int i; + + if ((serio->type & SERIO_TYPE) != SERIO_RS232) + return; + if (!(serio->type & SERIO_PROTO)) + return; + if ((serio->type & SERIO_PROTO) && (serio->type & SERIO_PROTO) != SERIO_LKKBD) + return; + + if (!(lk = kmalloc (sizeof (struct lkkbd), GFP_KERNEL))) + return; + memset (lk, 0, sizeof (struct lkkbd)); + + init_input_dev (&lk->dev); + + lk->dev.evbit[0] = BIT (EV_KEY) | BIT (EV_LED) | BIT (EV_SND) | BIT (EV_REP); + lk->dev.ledbit[0] = BIT (LED_CAPSL) | BIT (LED_COMPOSE) | BIT (LED_SCROLLL) | BIT (LED_SLEEP); + lk->dev.sndbit[0] = BIT (SND_CLICK) | BIT (SND_BELL); + + lk->serio = serio; + + INIT_WORK (&lk->tq, lkkbd_reinit, lk); + + lk->bell_volume = bell_volume; + lk->keyclick_volume = keyclick_volume; + lk->ctrlclick_volume = ctrlclick_volume; + + lk->dev.keycode = lk->keycode; + lk->dev.keycodesize = sizeof (lk_keycode_t); + lk->dev.keycodemax = LK_NUM_KEYCODES; + + lk->dev.event = lkkbd_event; + lk->dev.private = lk; + + serio->private = lk; + + if (serio_open (serio, dev)) { + kfree (lk); + return; + } + + sprintf (lk->name, "LK keyboard"); + + memcpy (lk->keycode, lkkbd_keycode, sizeof (lk_keycode_t) * LK_NUM_KEYCODES); + for (i = 0; i < LK_NUM_KEYCODES; i++) + set_bit (lk->keycode[i], lk->dev.keybit); + + sprintf (lk->name, "%s/input0", serio->phys); + + lk->dev.name = lk->name; + lk->dev.phys = lk->phys; + lk->dev.id.bustype = BUS_RS232; + lk->dev.id.vendor = SERIO_LKKBD; + lk->dev.id.product = 0; + lk->dev.id.version = 0x0100; + + input_register_device (&lk->dev); + + printk (KERN_INFO "input: %s on %s, initiating reset\n", lk->name, serio->phys); + lk->serio->write (lk->serio, LK_CMD_POWERCYCLE_RESET); +} + +/* + * lkkbd_disconnect() unregisters and closes behind us. + */ +static void +lkkbd_disconnect (struct serio *serio) +{ + struct lkkbd *lk = serio->private; + + input_unregister_device (&lk->dev); + serio_close (serio); + kfree (lk); +} + +static struct serio_dev lkkbd_dev = { + .interrupt = lkkbd_interrupt, + .connect = lkkbd_connect, + .disconnect = lkkbd_disconnect, +}; + +/* + * The functions for insering/removing us as a module. + */ +int __init +lkkbd_init (void) +{ + serio_register_device (&lkkbd_dev); + return 0; +} + +void __exit +lkkbd_exit (void) +{ + serio_unregister_device (&lkkbd_dev); +} + +module_init (lkkbd_init); +module_exit (lkkbd_exit); + - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/