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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | /* * Stowaway keyboard driver for Linux */ /* * Copyright (c) 2006 Marek Vasut * * Based on Newton keyboard driver for Linux * by Justin Cormack */ /* * 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 * e-mail - mail your message to <marek.vasut@gmail.com>, or by paper mail: * Marek Vasut, Liskovecka 559, Frydek-Mistek, 738 01 Czech Republic */ #include <linux/slab.h> #include <linux/module.h> #include <linux/input.h> #include <linux/serio.h> #define DRIVER_DESC "Stowaway keyboard driver" MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); #define SKBD_KEY_MASK 0x7f #define SKBD_RELEASE 0x80 static unsigned char skbd_keycode[128] = { KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7, 0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE, KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE, KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0, 0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0, 0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N, KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC, KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P, KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON, KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT, KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0 }; struct skbd { unsigned char keycode[128]; struct input_dev *dev; struct serio *serio; char phys[32]; }; static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data, unsigned int flags) { struct skbd *skbd = serio_get_drvdata(serio); struct input_dev *dev = skbd->dev; if (skbd->keycode[data & SKBD_KEY_MASK]) { input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK], !(data & SKBD_RELEASE)); input_sync(dev); } return IRQ_HANDLED; } static int skbd_connect(struct serio *serio, struct serio_driver *drv) { struct skbd *skbd; struct input_dev *input_dev; int err = -ENOMEM; int i; skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL); input_dev = input_allocate_device(); if (!skbd || !input_dev) goto fail1; skbd->serio = serio; skbd->dev = input_dev; snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys); memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode)); input_dev->name = "Stowaway Keyboard"; input_dev->phys = skbd->phys; input_dev->id.bustype = BUS_RS232; input_dev->id.vendor = SERIO_STOWAWAY; input_dev->id.product = 0x0001; input_dev->id.version = 0x0100; input_dev->dev.parent = &serio->dev; input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); input_dev->keycode = skbd->keycode; input_dev->keycodesize = sizeof(unsigned char); input_dev->keycodemax = ARRAY_SIZE(skbd_keycode); for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++) set_bit(skbd_keycode[i], input_dev->keybit); clear_bit(0, input_dev->keybit); serio_set_drvdata(serio, skbd); err = serio_open(serio, drv); if (err) goto fail2; err = input_register_device(skbd->dev); if (err) goto fail3; return 0; fail3: serio_close(serio); fail2: serio_set_drvdata(serio, NULL); fail1: input_free_device(input_dev); kfree(skbd); return err; } static void skbd_disconnect(struct serio *serio) { struct skbd *skbd = serio_get_drvdata(serio); serio_close(serio); serio_set_drvdata(serio, NULL); input_unregister_device(skbd->dev); kfree(skbd); } static struct serio_device_id skbd_serio_ids[] = { { .type = SERIO_RS232, .proto = SERIO_STOWAWAY, .id = SERIO_ANY, .extra = SERIO_ANY, }, { 0 } }; MODULE_DEVICE_TABLE(serio, skbd_serio_ids); static struct serio_driver skbd_drv = { .driver = { .name = "stowaway", }, .description = DRIVER_DESC, .id_table = skbd_serio_ids, .interrupt = skbd_interrupt, .connect = skbd_connect, .disconnect = skbd_disconnect, }; module_serio_driver(skbd_drv); |