1 files changed, 263 insertions, 0 deletions

diff --git a/drivers/input/joystick/spaceorb.c b/drivers/input/joystick/spaceorb.c
new file mode 100644
index 000000000000..c76cf8ff29c0
--- /dev/null
+++ b/drivers/input/joystick/spaceorb.c
@@ -0,0 +1,263 @@
+/*
+ * $Id: spaceorb.c,v 1.15 2002/01/22 20:29:19 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *      David Thompson
+ */
+
+/*
+ * SpaceTec SpaceOrb 360 and Avenger 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/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC     "SpaceTec SpaceOrb 360 and Avenger 6dof controller driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define SPACEORB_MAX_LENGTH     64
+
+static int spaceorb_buttons[] = { BTN_TL, BTN_TR, BTN_Y, BTN_X, BTN_B, BTN_A };
+static int spaceorb_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
+static char *spaceorb_name = "SpaceTec SpaceOrb 360 / Avenger";
+
+/*
+ * Per-Orb data.
+ */
+
+struct spaceorb {
+        struct input_dev dev;
+        struct serio *serio;
+        int idx;
+        unsigned char data[SPACEORB_MAX_LENGTH];
+        char phys[32];
+};
+
+static unsigned char spaceorb_xor[] = "SpaceWare";
+
+static unsigned char *spaceorb_errors[] = { "EEPROM storing 0 failed", "Receive queue overflow", "Transmit queue timeout",
+                "Bad packet", "Power brown-out", "EEPROM checksum error", "Hardware fault" };
+
+/*
+ * spaceorb_process_packet() decodes packets the driver receives from the
+ * SpaceOrb.
+ */
+
+static void spaceorb_process_packet(struct spaceorb *spaceorb, struct pt_regs *regs)
+{
+        struct input_dev *dev = &spaceorb->dev;
+        unsigned char *data = spaceorb->data;
+        unsigned char c = 0;
+        int axes[6];
+        int i;
+
+        if (spaceorb->idx < 2) return;
+        for (i = 0; i < spaceorb->idx; i++) c ^= data[i];
+        if (c) return;
+
+        input_regs(dev, regs);
+
+        switch (data[0]) {
+
+                case 'R':                               /* Reset packet */
+                        spaceorb->data[spaceorb->idx - 1] = 0;
+                        for (i = 1; i < spaceorb->idx && spaceorb->data[i] == ' '; i++);
+                        printk(KERN_INFO "input: %s [%s] on %s\n",
+                                 spaceorb_name, spaceorb->data + i, spaceorb->serio->phys);
+                        break;
+
+                case 'D':                               /* Ball + button data */
+                        if (spaceorb->idx != 12) return;
+                        for (i = 0; i < 9; i++) spaceorb->data[i+2] ^= spaceorb_xor[i];
+                        axes[0] = ( data[2]      << 3) | (data[ 3] >> 4);
+                        axes[1] = ((data[3] & 0x0f) << 6) | (data[ 4] >> 1);
+                        axes[2] = ((data[4] & 0x01) << 9) | (data[ 5] << 2) | (data[4] >> 5);
+                        axes[3] = ((data[6] & 0x1f) << 5) | (data[ 7] >> 2);
+                        axes[4] = ((data[7] & 0x03) << 8) | (data[ 8] << 1) | (data[7] >> 6);
+                        axes[5] = ((data[9] & 0x3f) << 4) | (data[10] >> 3);
+                        for (i = 0; i < 6; i++)
+                                input_report_abs(dev, spaceorb_axes[i], axes[i] - ((axes[i] & 0x200) ? 1024 : 0));
+                        for (i = 0; i < 6; i++)
+                                input_report_key(dev, spaceorb_buttons[i], (data[1] >> i) & 1);
+                        break;
+
+                case 'K':                               /* Button data */
+                        if (spaceorb->idx != 5) return;
+                        for (i = 0; i < 7; i++)
+                                input_report_key(dev, spaceorb_buttons[i], (data[2] >> i) & 1);
+
+                        break;
+
+                case 'E':                               /* Error packet */
+                        if (spaceorb->idx != 4) return;
+                        printk(KERN_ERR "joy-spaceorb: Device error. [ ");
+                        for (i = 0; i < 7; i++) if (data[1] & (1 << i)) printk("%s ", spaceorb_errors[i]);
+                        printk("]\n");
+                        break;
+        }
+
+        input_sync(dev);
+}
+
+static irqreturn_t spaceorb_interrupt(struct serio *serio,
+                unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+        struct spaceorb* spaceorb = serio_get_drvdata(serio);
+
+        if (~data & 0x80) {
+                if (spaceorb->idx) spaceorb_process_packet(spaceorb, regs);
+                spaceorb->idx = 0;
+        }
+        if (spaceorb->idx < SPACEORB_MAX_LENGTH)
+                spaceorb->data[spaceorb->idx++] = data & 0x7f;
+        return IRQ_HANDLED;
+}
+
+/*
+ * spaceorb_disconnect() is the opposite of spaceorb_connect()
+ */
+
+static void spaceorb_disconnect(struct serio *serio)
+{
+        struct spaceorb* spaceorb = serio_get_drvdata(serio);
+
+        input_unregister_device(&spaceorb->dev);
+        serio_close(serio);
+        serio_set_drvdata(serio, NULL);
+        kfree(spaceorb);
+}
+
+/*
+ * spaceorb_connect() is the routine that is called when someone adds a
+ * new serio device that supports SpaceOrb/Avenger protocol and registers
+ * it as an input device.
+ */
+
+static int spaceorb_connect(struct serio *serio, struct serio_driver *drv)
+{
+        struct spaceorb *spaceorb;
+        int i, t;
+        int err;
+
+        if (!(spaceorb = kmalloc(sizeof(struct spaceorb), GFP_KERNEL)))
+                return -ENOMEM;
+
+        memset(spaceorb, 0, sizeof(struct spaceorb));
+
+        spaceorb->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+
+        for (i = 0; i < 6; i++)
+                set_bit(spaceorb_buttons[i], spaceorb->dev.keybit);
+
+        for (i = 0; i < 6; i++) {
+                t = spaceorb_axes[i];
+                set_bit(t, spaceorb->dev.absbit);
+                spaceorb->dev.absmin[t] = -508;
+                spaceorb->dev.absmax[t] =  508;
+        }
+
+        spaceorb->serio = serio;
+        spaceorb->dev.private = spaceorb;
+
+        sprintf(spaceorb->phys, "%s/input0", serio->phys);
+
+        init_input_dev(&spaceorb->dev);
+        spaceorb->dev.name = spaceorb_name;
+        spaceorb->dev.phys = spaceorb->phys;
+        spaceorb->dev.id.bustype = BUS_RS232;
+        spaceorb->dev.id.vendor = SERIO_SPACEORB;
+        spaceorb->dev.id.product = 0x0001;
+        spaceorb->dev.id.version = 0x0100;
+        spaceorb->dev.dev = &serio->dev;
+
+        serio_set_drvdata(serio, spaceorb);
+
+        err = serio_open(serio, drv);
+        if (err) {
+                serio_set_drvdata(serio, NULL);
+                kfree(spaceorb);
+                return err;
+        }
+
+        input_register_device(&spaceorb->dev);
+
+        return 0;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id spaceorb_serio_ids[] = {
+        {
+                .type   = SERIO_RS232,
+                .proto  = SERIO_SPACEORB,
+                .id     = SERIO_ANY,
+                .extra  = SERIO_ANY,
+        },
+        { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, spaceorb_serio_ids);
+
+static struct serio_driver spaceorb_drv = {
+        .driver         = {
+                .name   = "spaceorb",
+        },
+        .description    = DRIVER_DESC,
+        .id_table       = spaceorb_serio_ids,
+        .interrupt      = spaceorb_interrupt,
+        .connect        = spaceorb_connect,
+        .disconnect     = spaceorb_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init spaceorb_init(void)
+{
+        serio_register_driver(&spaceorb_drv);
+        return 0;
+}
+
+static void __exit spaceorb_exit(void)
+{
+        serio_unregister_driver(&spaceorb_drv);
+}
+
+module_init(spaceorb_init);
+module_exit(spaceorb_exit);