Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/input/joystick/magellan.c b/drivers/input/joystick/magellan.c
new file mode 100644
index 0000000..1ba5036
--- /dev/null
+++ b/drivers/input/joystick/magellan.c
@@ -0,0 +1,247 @@
+/*
+ * $Id: magellan.c,v 1.16 2002/01/22 20:28:39 vojtech Exp $
+ *
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Magellan and Space Mouse 6dof controller 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 <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Magellan and SpaceMouse 6dof controller driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define MAGELLAN_MAX_LENGTH 32
+
+static int magellan_buttons[] = { BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8 };
+static int magellan_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
+static char *magellan_name = "LogiCad3D Magellan / SpaceMouse";
+
+/*
+ * Per-Magellan data.
+ */
+
+struct magellan {
+ struct input_dev dev;
+ int idx;
+ unsigned char data[MAGELLAN_MAX_LENGTH];
+ char phys[32];
+};
+
+/*
+ * magellan_crunch_nibbles() verifies that the bytes sent from the Magellan
+ * have correct upper nibbles for the lower ones, if not, the packet will
+ * be thrown away. It also strips these upper halves to simplify further
+ * processing.
+ */
+
+static int magellan_crunch_nibbles(unsigned char *data, int count)
+{
+ static unsigned char nibbles[16] = "0AB3D56GH9:K<MN?";
+
+ do {
+ if (data[count] == nibbles[data[count] & 0xf])
+ data[count] = data[count] & 0xf;
+ else
+ return -1;
+ } while (--count);
+
+ return 0;
+}
+
+static void magellan_process_packet(struct magellan* magellan, struct pt_regs *regs)
+{
+ struct input_dev *dev = &magellan->dev;
+ unsigned char *data = magellan->data;
+ int i, t;
+
+ if (!magellan->idx) return;
+
+ input_regs(dev, regs);
+
+ switch (magellan->data[0]) {
+
+ case 'd': /* Axis data */
+ if (magellan->idx != 25) return;
+ if (magellan_crunch_nibbles(data, 24)) return;
+ for (i = 0; i < 6; i++)
+ input_report_abs(dev, magellan_axes[i],
+ (data[(i << 2) + 1] << 12 | data[(i << 2) + 2] << 8 |
+ data[(i << 2) + 3] << 4 | data[(i << 2) + 4]) - 32768);
+ break;
+
+ case 'k': /* Button data */
+ if (magellan->idx != 4) return;
+ if (magellan_crunch_nibbles(data, 3)) return;
+ t = (data[1] << 1) | (data[2] << 5) | data[3];
+ for (i = 0; i < 9; i++) input_report_key(dev, magellan_buttons[i], (t >> i) & 1);
+ break;
+ }
+
+ input_sync(dev);
+}
+
+static irqreturn_t magellan_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+ struct magellan* magellan = serio_get_drvdata(serio);
+
+ if (data == '\r') {
+ magellan_process_packet(magellan, regs);
+ magellan->idx = 0;
+ } else {
+ if (magellan->idx < MAGELLAN_MAX_LENGTH)
+ magellan->data[magellan->idx++] = data;
+ }
+ return IRQ_HANDLED;
+}
+
+/*
+ * magellan_disconnect() is the opposite of magellan_connect()
+ */
+
+static void magellan_disconnect(struct serio *serio)
+{
+ struct magellan* magellan = serio_get_drvdata(serio);
+
+ input_unregister_device(&magellan->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ kfree(magellan);
+}
+
+/*
+ * magellan_connect() is the routine that is called when someone adds a
+ * new serio device that supports Magellan protocol and registers it as
+ * an input device.
+ */
+
+static int magellan_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct magellan *magellan;
+ int i, t;
+ int err;
+
+ if (!(magellan = kmalloc(sizeof(struct magellan), GFP_KERNEL)))
+ return -ENOMEM;
+
+ memset(magellan, 0, sizeof(struct magellan));
+
+ magellan->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+
+ for (i = 0; i < 9; i++)
+ set_bit(magellan_buttons[i], magellan->dev.keybit);
+
+ for (i = 0; i < 6; i++) {
+ t = magellan_axes[i];
+ set_bit(t, magellan->dev.absbit);
+ magellan->dev.absmin[t] = -360;
+ magellan->dev.absmax[t] = 360;
+ }
+
+ sprintf(magellan->phys, "%s/input0", serio->phys);
+
+ init_input_dev(&magellan->dev);
+ magellan->dev.private = magellan;
+ magellan->dev.name = magellan_name;
+ magellan->dev.phys = magellan->phys;
+ magellan->dev.id.bustype = BUS_RS232;
+ magellan->dev.id.vendor = SERIO_MAGELLAN;
+ magellan->dev.id.product = 0x0001;
+ magellan->dev.id.version = 0x0100;
+ magellan->dev.dev = &serio->dev;
+
+ serio_set_drvdata(serio, magellan);
+
+ err = serio_open(serio, drv);
+ if (err) {
+ serio_set_drvdata(serio, NULL);
+ kfree(magellan);
+ return err;
+ }
+
+ input_register_device(&magellan->dev);
+
+ printk(KERN_INFO "input: %s on %s\n", magellan_name, serio->phys);
+
+ return 0;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id magellan_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MAGELLAN,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, magellan_serio_ids);
+
+static struct serio_driver magellan_drv = {
+ .driver = {
+ .name = "magellan",
+ },
+ .description = DRIVER_DESC,
+ .id_table = magellan_serio_ids,
+ .interrupt = magellan_interrupt,
+ .connect = magellan_connect,
+ .disconnect = magellan_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init magellan_init(void)
+{
+ serio_register_driver(&magellan_drv);
+ return 0;
+}
+
+static void __exit magellan_exit(void)
+{
+ serio_unregister_driver(&magellan_drv);
+}
+
+module_init(magellan_init);
+module_exit(magellan_exit);