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Diffstat (limited to 'drivers/input/keyboard/newtonkbd.c')
-rw-r--r--drivers/input/keyboard/newtonkbd.c184
1 files changed, 184 insertions, 0 deletions
diff --git a/drivers/input/keyboard/newtonkbd.c b/drivers/input/keyboard/newtonkbd.c
new file mode 100644
index 000000000000..2e8ce1613eec
--- /dev/null
+++ b/drivers/input/keyboard/newtonkbd.c
@@ -0,0 +1,184 @@
+/*
+ * 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
+};
+
+static char *nkbd_name = "Newton Keyboard";
+
+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 pt_regs *regs)
+{
+ 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_regs(&nkbd->dev, regs);
+ 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_name, serio->phys);
+ return IRQ_HANDLED;
+
+}
+
+static int nkbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct nkbd *nkbd;
+ int i;
+ int err;
+
+ if (!(nkbd = kmalloc(sizeof(struct nkbd), GFP_KERNEL)))
+ return -ENOMEM;
+
+ memset(nkbd, 0, sizeof(struct nkbd));
+
+ nkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+
+ nkbd->serio = serio;
+
+ init_input_dev(&nkbd->dev);
+ nkbd->dev.keycode = nkbd->keycode;
+ nkbd->dev.keycodesize = sizeof(unsigned char);
+ nkbd->dev.keycodemax = ARRAY_SIZE(nkbd_keycode);
+ nkbd->dev.private = nkbd;
+
+ serio_set_drvdata(serio, nkbd);
+
+ err = serio_open(serio, drv);
+ if (err) {
+ serio_set_drvdata(serio, NULL);
+ kfree(nkbd);
+ return err;
+ }
+
+ memcpy(nkbd->keycode, nkbd_keycode, sizeof(nkbd->keycode));
+ for (i = 0; i < 128; i++)
+ set_bit(nkbd->keycode[i], nkbd->dev.keybit);
+ clear_bit(0, nkbd->dev.keybit);
+
+ sprintf(nkbd->phys, "%s/input0", serio->phys);
+
+ nkbd->dev.name = nkbd_name;
+ nkbd->dev.phys = nkbd->phys;
+ nkbd->dev.id.bustype = BUS_RS232;
+ nkbd->dev.id.vendor = SERIO_NEWTON;
+ nkbd->dev.id.product = 0x0001;
+ nkbd->dev.id.version = 0x0100;
+ nkbd->dev.dev = &serio->dev;
+
+ input_register_device(&nkbd->dev);
+
+ printk(KERN_INFO "input: %s on %s\n", nkbd_name, serio->phys);
+
+ return 0;
+}
+
+static void nkbd_disconnect(struct serio *serio)
+{
+ struct nkbd *nkbd = serio_get_drvdata(serio);
+
+ input_unregister_device(&nkbd->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ 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)
+{
+ serio_register_driver(&nkbd_drv);
+ return 0;
+}
+
+static void __exit nkbd_exit(void)
+{
+ serio_unregister_driver(&nkbd_drv);
+}
+
+module_init(nkbd_init);
+module_exit(nkbd_exit);