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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 | /* * Copyright (c) 2000 Justin Cormack */ /* * Newton keyboard driver for Linux */ /* * 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 <j.cormack@doc.ic.ac.uk>, or by paper mail: * Justin Cormack, 68 Dartmouth Park Road, London NW5 1SN, UK. */ #include <linux/slab.h> #include <linux/module.h> #include <linux/input.h> #include <linux/init.h> #include <linux/serio.h> #define DRIVER_DESC "Newton keyboard driver" MODULE_AUTHOR("Justin Cormack <j.cormack@doc.ic.ac.uk>"); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); #define NKBD_KEY 0x7f #define NKBD_PRESS 0x80 static unsigned char nkbd_keycode[128] = { KEY_A, KEY_S, KEY_D, KEY_F, KEY_H, KEY_G, KEY_Z, KEY_X, KEY_C, KEY_V, 0, KEY_B, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_Y, KEY_T, KEY_1, KEY_2, KEY_3, KEY_4, KEY_6, KEY_5, KEY_EQUAL, KEY_9, KEY_7, KEY_MINUS, KEY_8, KEY_0, KEY_RIGHTBRACE, KEY_O, KEY_U, KEY_LEFTBRACE, KEY_I, KEY_P, KEY_ENTER, KEY_L, KEY_J, KEY_APOSTROPHE, KEY_K, KEY_SEMICOLON, KEY_BACKSLASH, KEY_COMMA, KEY_SLASH, KEY_N, KEY_M, KEY_DOT, KEY_TAB, KEY_SPACE, KEY_GRAVE, KEY_DELETE, 0, 0, 0, KEY_LEFTMETA, KEY_LEFTSHIFT, KEY_CAPSLOCK, KEY_LEFTALT, KEY_LEFTCTRL, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_LEFT, KEY_RIGHT, KEY_DOWN, KEY_UP, 0 }; struct nkbd { unsigned char keycode[128]; struct input_dev *dev; struct serio *serio; char phys[32]; }; static irqreturn_t nkbd_interrupt(struct serio *serio, unsigned char data, unsigned int flags) { struct nkbd *nkbd = serio_get_drvdata(serio); /* invalid scan codes are probably the init sequence, so we ignore them */ if (nkbd->keycode[data & NKBD_KEY]) { input_report_key(nkbd->dev, nkbd->keycode[data & NKBD_KEY], data & NKBD_PRESS); input_sync(nkbd->dev); } else if (data == 0xe7) /* end of init sequence */ printk(KERN_INFO "input: %s on %s\n", nkbd->dev->name, serio->phys); return IRQ_HANDLED; } static int nkbd_connect(struct serio *serio, struct serio_driver *drv) { struct nkbd *nkbd; struct input_dev *input_dev; int err = -ENOMEM; int i; nkbd = kzalloc(sizeof(struct nkbd), GFP_KERNEL); input_dev = input_allocate_device(); if (!nkbd || !input_dev) goto fail1; nkbd->serio = serio; nkbd->dev = input_dev; snprintf(nkbd->phys, sizeof(nkbd->phys), "%s/input0", serio->phys); memcpy(nkbd->keycode, nkbd_keycode, sizeof(nkbd->keycode)); input_dev->name = "Newton Keyboard"; input_dev->phys = nkbd->phys; input_dev->id.bustype = BUS_RS232; input_dev->id.vendor = SERIO_NEWTON; 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 = nkbd->keycode; input_dev->keycodesize = sizeof(unsigned char); input_dev->keycodemax = ARRAY_SIZE(nkbd_keycode); for (i = 0; i < 128; i++) set_bit(nkbd->keycode[i], input_dev->keybit); clear_bit(0, input_dev->keybit); serio_set_drvdata(serio, nkbd); err = serio_open(serio, drv); if (err) goto fail2; err = input_register_device(nkbd->dev); if (err) goto fail3; return 0; fail3: serio_close(serio); fail2: serio_set_drvdata(serio, NULL); fail1: input_free_device(input_dev); kfree(nkbd); return err; } static void nkbd_disconnect(struct serio *serio) { struct nkbd *nkbd = serio_get_drvdata(serio); serio_close(serio); serio_set_drvdata(serio, NULL); input_unregister_device(nkbd->dev); kfree(nkbd); } static struct serio_device_id nkbd_serio_ids[] = { { .type = SERIO_RS232, .proto = SERIO_NEWTON, .id = SERIO_ANY, .extra = SERIO_ANY, }, { 0 } }; MODULE_DEVICE_TABLE(serio, nkbd_serio_ids); static struct serio_driver nkbd_drv = { .driver = { .name = "newtonkbd", }, .description = DRIVER_DESC, .id_table = nkbd_serio_ids, .interrupt = nkbd_interrupt, .connect = nkbd_connect, .disconnect = nkbd_disconnect, }; static int __init nkbd_init(void) { return serio_register_driver(&nkbd_drv); } static void __exit nkbd_exit(void) { serio_unregister_driver(&nkbd_drv); } module_init(nkbd_init); module_exit(nkbd_exit); |