2 * Stowaway keyboard driver for Linux
6 * Copyright (c) 2006 Marek Vasut
8 * Based on Newton keyboard driver for Linux
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * Should you need to contact me, the author, you can do so either by
28 * e-mail - mail your message to <marek.vasut@gmail.com>, or by paper mail:
29 * Marek Vasut, Liskovecka 559, Frydek-Mistek, 738 01 Czech Republic
32 #include <linux/slab.h>
33 #include <linux/module.h>
34 #include <linux/input.h>
35 #include <linux/serio.h>
37 #define DRIVER_DESC "Stowaway keyboard driver"
39 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
40 MODULE_DESCRIPTION(DRIVER_DESC);
41 MODULE_LICENSE("GPL");
43 #define SKBD_KEY_MASK 0x7f
44 #define SKBD_RELEASE 0x80
46 static unsigned char skbd_keycode[128] = {
47 KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
48 0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
49 KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
50 KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
51 0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
52 0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
53 KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
54 KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
55 KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
56 KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
57 KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0,
58 KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
59 0, 0, 0, 0, 0, 0, 0, 0,
60 0, 0, 0, 0, 0, 0, 0, 0,
61 0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
62 KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
66 unsigned char keycode[128];
67 struct input_dev *dev;
72 static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
75 struct skbd *skbd = serio_get_drvdata(serio);
76 struct input_dev *dev = skbd->dev;
78 if (skbd->keycode[data & SKBD_KEY_MASK]) {
79 input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
80 !(data & SKBD_RELEASE));
87 static int skbd_connect(struct serio *serio, struct serio_driver *drv)
90 struct input_dev *input_dev;
94 skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL);
95 input_dev = input_allocate_device();
96 if (!skbd || !input_dev)
100 skbd->dev = input_dev;
101 snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys);
102 memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode));
104 input_dev->name = "Stowaway Keyboard";
105 input_dev->phys = skbd->phys;
106 input_dev->id.bustype = BUS_RS232;
107 input_dev->id.vendor = SERIO_STOWAWAY;
108 input_dev->id.product = 0x0001;
109 input_dev->id.version = 0x0100;
110 input_dev->dev.parent = &serio->dev;
112 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
113 input_dev->keycode = skbd->keycode;
114 input_dev->keycodesize = sizeof(unsigned char);
115 input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
116 for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
117 set_bit(skbd_keycode[i], input_dev->keybit);
118 clear_bit(0, input_dev->keybit);
120 serio_set_drvdata(serio, skbd);
122 err = serio_open(serio, drv);
126 err = input_register_device(skbd->dev);
132 fail3: serio_close(serio);
133 fail2: serio_set_drvdata(serio, NULL);
134 fail1: input_free_device(input_dev);
139 static void skbd_disconnect(struct serio *serio)
141 struct skbd *skbd = serio_get_drvdata(serio);
144 serio_set_drvdata(serio, NULL);
145 input_unregister_device(skbd->dev);
149 static struct serio_device_id skbd_serio_ids[] = {
152 .proto = SERIO_STOWAWAY,
159 MODULE_DEVICE_TABLE(serio, skbd_serio_ids);
161 static struct serio_driver skbd_drv = {
165 .description = DRIVER_DESC,
166 .id_table = skbd_serio_ids,
167 .interrupt = skbd_interrupt,
168 .connect = skbd_connect,
169 .disconnect = skbd_disconnect,
172 module_serio_driver(skbd_drv);