11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Copyright (c) 2000 Justin Cormack 31da177e4SLinus Torvalds */ 41da177e4SLinus Torvalds 51da177e4SLinus Torvalds /* 61da177e4SLinus Torvalds * Newton keyboard driver for Linux 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds /* 101da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 111da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 121da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 131da177e4SLinus Torvalds * (at your option) any later version. 141da177e4SLinus Torvalds * 151da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, 161da177e4SLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 171da177e4SLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 181da177e4SLinus Torvalds * GNU General Public License for more details. 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 211da177e4SLinus Torvalds * along with this program; if not, write to the Free Software 221da177e4SLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 231da177e4SLinus Torvalds * 241da177e4SLinus Torvalds * Should you need to contact me, the author, you can do so either by 251da177e4SLinus Torvalds * e-mail - mail your message to <j.cormack@doc.ic.ac.uk>, or by paper mail: 261da177e4SLinus Torvalds * Justin Cormack, 68 Dartmouth Park Road, London NW5 1SN, UK. 271da177e4SLinus Torvalds */ 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds #include <linux/slab.h> 301da177e4SLinus Torvalds #include <linux/module.h> 311da177e4SLinus Torvalds #include <linux/input.h> 321da177e4SLinus Torvalds #include <linux/init.h> 331da177e4SLinus Torvalds #include <linux/serio.h> 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds #define DRIVER_DESC "Newton keyboard driver" 361da177e4SLinus Torvalds 371da177e4SLinus Torvalds MODULE_AUTHOR("Justin Cormack <j.cormack@doc.ic.ac.uk>"); 381da177e4SLinus Torvalds MODULE_DESCRIPTION(DRIVER_DESC); 391da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 401da177e4SLinus Torvalds 411da177e4SLinus Torvalds #define NKBD_KEY 0x7f 421da177e4SLinus Torvalds #define NKBD_PRESS 0x80 431da177e4SLinus Torvalds 441da177e4SLinus Torvalds static unsigned char nkbd_keycode[128] = { 451da177e4SLinus Torvalds KEY_A, KEY_S, KEY_D, KEY_F, KEY_H, KEY_G, KEY_Z, KEY_X, 461da177e4SLinus Torvalds KEY_C, KEY_V, 0, KEY_B, KEY_Q, KEY_W, KEY_E, KEY_R, 471da177e4SLinus Torvalds KEY_Y, KEY_T, KEY_1, KEY_2, KEY_3, KEY_4, KEY_6, KEY_5, 481da177e4SLinus Torvalds KEY_EQUAL, KEY_9, KEY_7, KEY_MINUS, KEY_8, KEY_0, KEY_RIGHTBRACE, KEY_O, 491da177e4SLinus Torvalds KEY_U, KEY_LEFTBRACE, KEY_I, KEY_P, KEY_ENTER, KEY_L, KEY_J, KEY_APOSTROPHE, 501da177e4SLinus Torvalds KEY_K, KEY_SEMICOLON, KEY_BACKSLASH, KEY_COMMA, KEY_SLASH, KEY_N, KEY_M, KEY_DOT, 511da177e4SLinus Torvalds KEY_TAB, KEY_SPACE, KEY_GRAVE, KEY_DELETE, 0, 0, 0, KEY_LEFTMETA, 521da177e4SLinus Torvalds KEY_LEFTSHIFT, KEY_CAPSLOCK, KEY_LEFTALT, KEY_LEFTCTRL, KEY_RIGHTSHIFT, 0, 0, 0, 531da177e4SLinus Torvalds 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 541da177e4SLinus Torvalds 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 551da177e4SLinus Torvalds 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 561da177e4SLinus Torvalds 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 571da177e4SLinus Torvalds KEY_LEFT, KEY_RIGHT, KEY_DOWN, KEY_UP, 0 581da177e4SLinus Torvalds }; 591da177e4SLinus Torvalds 601da177e4SLinus Torvalds struct nkbd { 611da177e4SLinus Torvalds unsigned char keycode[128]; 623c42f0c3SDmitry Torokhov struct input_dev *dev; 631da177e4SLinus Torvalds struct serio *serio; 641da177e4SLinus Torvalds char phys[32]; 651da177e4SLinus Torvalds }; 661da177e4SLinus Torvalds 671da177e4SLinus Torvalds static irqreturn_t nkbd_interrupt(struct serio *serio, 68*7d12e780SDavid Howells unsigned char data, unsigned int flags) 691da177e4SLinus Torvalds { 701da177e4SLinus Torvalds struct nkbd *nkbd = serio_get_drvdata(serio); 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds /* invalid scan codes are probably the init sequence, so we ignore them */ 731da177e4SLinus Torvalds if (nkbd->keycode[data & NKBD_KEY]) { 743c42f0c3SDmitry Torokhov input_report_key(nkbd->dev, nkbd->keycode[data & NKBD_KEY], data & NKBD_PRESS); 753c42f0c3SDmitry Torokhov input_sync(nkbd->dev); 761da177e4SLinus Torvalds } 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds else if (data == 0xe7) /* end of init sequence */ 793c42f0c3SDmitry Torokhov printk(KERN_INFO "input: %s on %s\n", nkbd->dev->name, serio->phys); 801da177e4SLinus Torvalds return IRQ_HANDLED; 811da177e4SLinus Torvalds 821da177e4SLinus Torvalds } 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds static int nkbd_connect(struct serio *serio, struct serio_driver *drv) 851da177e4SLinus Torvalds { 861da177e4SLinus Torvalds struct nkbd *nkbd; 873c42f0c3SDmitry Torokhov struct input_dev *input_dev; 883c42f0c3SDmitry Torokhov int err = -ENOMEM; 891da177e4SLinus Torvalds int i; 901da177e4SLinus Torvalds 913c42f0c3SDmitry Torokhov nkbd = kzalloc(sizeof(struct nkbd), GFP_KERNEL); 923c42f0c3SDmitry Torokhov input_dev = input_allocate_device(); 933c42f0c3SDmitry Torokhov if (!nkbd || !input_dev) 943c42f0c3SDmitry Torokhov goto fail; 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds nkbd->serio = serio; 973c42f0c3SDmitry Torokhov nkbd->dev = input_dev; 98ea08c6faSDmitry Torokhov snprintf(nkbd->phys, sizeof(nkbd->phys), "%s/input0", serio->phys); 993c42f0c3SDmitry Torokhov memcpy(nkbd->keycode, nkbd_keycode, sizeof(nkbd->keycode)); 1001da177e4SLinus Torvalds 1013c42f0c3SDmitry Torokhov input_dev->name = "Newton Keyboard"; 1023c42f0c3SDmitry Torokhov input_dev->phys = nkbd->phys; 1033c42f0c3SDmitry Torokhov input_dev->id.bustype = BUS_RS232; 1043c42f0c3SDmitry Torokhov input_dev->id.vendor = SERIO_NEWTON; 1053c42f0c3SDmitry Torokhov input_dev->id.product = 0x0001; 1063c42f0c3SDmitry Torokhov input_dev->id.version = 0x0100; 1073c42f0c3SDmitry Torokhov input_dev->cdev.dev = &serio->dev; 1083c42f0c3SDmitry Torokhov input_dev->private = nkbd; 1093c42f0c3SDmitry Torokhov 1103c42f0c3SDmitry Torokhov input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); 1113c42f0c3SDmitry Torokhov input_dev->keycode = nkbd->keycode; 1123c42f0c3SDmitry Torokhov input_dev->keycodesize = sizeof(unsigned char); 1133c42f0c3SDmitry Torokhov input_dev->keycodemax = ARRAY_SIZE(nkbd_keycode); 1143c42f0c3SDmitry Torokhov for (i = 0; i < 128; i++) 1153c42f0c3SDmitry Torokhov set_bit(nkbd->keycode[i], input_dev->keybit); 1163c42f0c3SDmitry Torokhov clear_bit(0, input_dev->keybit); 1171da177e4SLinus Torvalds 1181da177e4SLinus Torvalds serio_set_drvdata(serio, nkbd); 1191da177e4SLinus Torvalds 1201da177e4SLinus Torvalds err = serio_open(serio, drv); 1213c42f0c3SDmitry Torokhov if (err) 1223c42f0c3SDmitry Torokhov goto fail; 1233c42f0c3SDmitry Torokhov 1243c42f0c3SDmitry Torokhov input_register_device(nkbd->dev); 1253c42f0c3SDmitry Torokhov return 0; 1263c42f0c3SDmitry Torokhov 1273c42f0c3SDmitry Torokhov fail: serio_set_drvdata(serio, NULL); 1283c42f0c3SDmitry Torokhov input_free_device(input_dev); 1291da177e4SLinus Torvalds kfree(nkbd); 1301da177e4SLinus Torvalds return err; 1311da177e4SLinus Torvalds } 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvalds static void nkbd_disconnect(struct serio *serio) 1341da177e4SLinus Torvalds { 1351da177e4SLinus Torvalds struct nkbd *nkbd = serio_get_drvdata(serio); 1361da177e4SLinus Torvalds 1371da177e4SLinus Torvalds serio_close(serio); 1381da177e4SLinus Torvalds serio_set_drvdata(serio, NULL); 1393c42f0c3SDmitry Torokhov input_unregister_device(nkbd->dev); 1401da177e4SLinus Torvalds kfree(nkbd); 1411da177e4SLinus Torvalds } 1421da177e4SLinus Torvalds 1431da177e4SLinus Torvalds static struct serio_device_id nkbd_serio_ids[] = { 1441da177e4SLinus Torvalds { 1451da177e4SLinus Torvalds .type = SERIO_RS232, 1461da177e4SLinus Torvalds .proto = SERIO_NEWTON, 1471da177e4SLinus Torvalds .id = SERIO_ANY, 1481da177e4SLinus Torvalds .extra = SERIO_ANY, 1491da177e4SLinus Torvalds }, 1501da177e4SLinus Torvalds { 0 } 1511da177e4SLinus Torvalds }; 1521da177e4SLinus Torvalds 1531da177e4SLinus Torvalds MODULE_DEVICE_TABLE(serio, nkbd_serio_ids); 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvalds static struct serio_driver nkbd_drv = { 1561da177e4SLinus Torvalds .driver = { 1571da177e4SLinus Torvalds .name = "newtonkbd", 1581da177e4SLinus Torvalds }, 1591da177e4SLinus Torvalds .description = DRIVER_DESC, 1601da177e4SLinus Torvalds .id_table = nkbd_serio_ids, 1611da177e4SLinus Torvalds .interrupt = nkbd_interrupt, 1621da177e4SLinus Torvalds .connect = nkbd_connect, 1631da177e4SLinus Torvalds .disconnect = nkbd_disconnect, 1641da177e4SLinus Torvalds }; 1651da177e4SLinus Torvalds 1661da177e4SLinus Torvalds static int __init nkbd_init(void) 1671da177e4SLinus Torvalds { 1681da177e4SLinus Torvalds serio_register_driver(&nkbd_drv); 1691da177e4SLinus Torvalds return 0; 1701da177e4SLinus Torvalds } 1711da177e4SLinus Torvalds 1721da177e4SLinus Torvalds static void __exit nkbd_exit(void) 1731da177e4SLinus Torvalds { 1741da177e4SLinus Torvalds serio_unregister_driver(&nkbd_drv); 1751da177e4SLinus Torvalds } 1761da177e4SLinus Torvalds 1771da177e4SLinus Torvalds module_init(nkbd_init); 1781da177e4SLinus Torvalds module_exit(nkbd_exit); 179