1a59d1b8e0
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
157 lines
3.9 KiB
C
157 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Stowaway keyboard driver for Linux
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*/
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/*
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* Copyright (c) 2006 Marek Vasut
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*
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* Based on Newton keyboard driver for Linux
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* by Justin Cormack
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*/
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/*
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*/
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/input.h>
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#include <linux/serio.h>
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#define DRIVER_DESC "Stowaway keyboard driver"
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MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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#define SKBD_KEY_MASK 0x7f
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#define SKBD_RELEASE 0x80
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static unsigned char skbd_keycode[128] = {
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KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
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0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
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KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
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KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
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0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
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0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
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KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
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KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
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KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
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KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
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KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0,
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KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
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KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
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};
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struct skbd {
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unsigned char keycode[128];
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struct input_dev *dev;
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struct serio *serio;
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char phys[32];
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};
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static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
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unsigned int flags)
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{
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struct skbd *skbd = serio_get_drvdata(serio);
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struct input_dev *dev = skbd->dev;
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if (skbd->keycode[data & SKBD_KEY_MASK]) {
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input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
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!(data & SKBD_RELEASE));
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input_sync(dev);
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}
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return IRQ_HANDLED;
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}
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static int skbd_connect(struct serio *serio, struct serio_driver *drv)
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{
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struct skbd *skbd;
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struct input_dev *input_dev;
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int err = -ENOMEM;
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int i;
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skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL);
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input_dev = input_allocate_device();
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if (!skbd || !input_dev)
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goto fail1;
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skbd->serio = serio;
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skbd->dev = input_dev;
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snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys);
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memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode));
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input_dev->name = "Stowaway Keyboard";
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input_dev->phys = skbd->phys;
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input_dev->id.bustype = BUS_RS232;
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input_dev->id.vendor = SERIO_STOWAWAY;
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input_dev->id.product = 0x0001;
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input_dev->id.version = 0x0100;
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input_dev->dev.parent = &serio->dev;
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
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input_dev->keycode = skbd->keycode;
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input_dev->keycodesize = sizeof(unsigned char);
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input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
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for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
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set_bit(skbd_keycode[i], input_dev->keybit);
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clear_bit(0, input_dev->keybit);
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serio_set_drvdata(serio, skbd);
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err = serio_open(serio, drv);
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if (err)
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goto fail2;
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err = input_register_device(skbd->dev);
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if (err)
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goto fail3;
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return 0;
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fail3: serio_close(serio);
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fail2: serio_set_drvdata(serio, NULL);
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fail1: input_free_device(input_dev);
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kfree(skbd);
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return err;
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}
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static void skbd_disconnect(struct serio *serio)
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{
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struct skbd *skbd = serio_get_drvdata(serio);
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serio_close(serio);
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serio_set_drvdata(serio, NULL);
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input_unregister_device(skbd->dev);
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kfree(skbd);
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}
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static const struct serio_device_id skbd_serio_ids[] = {
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{
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.type = SERIO_RS232,
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.proto = SERIO_STOWAWAY,
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.id = SERIO_ANY,
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.extra = SERIO_ANY,
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},
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{ 0 }
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};
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MODULE_DEVICE_TABLE(serio, skbd_serio_ids);
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static struct serio_driver skbd_drv = {
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.driver = {
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.name = "stowaway",
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},
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.description = DRIVER_DESC,
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.id_table = skbd_serio_ids,
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.interrupt = skbd_interrupt,
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.connect = skbd_connect,
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.disconnect = skbd_disconnect,
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};
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module_serio_driver(skbd_drv);
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