1 files changed, 175 insertions, 0 deletions

diff --git a/drivers/input/joystick/joydump.c b/drivers/input/joystick/joydump.c
new file mode 100644
index 000000000000..4234ccaf9146
--- /dev/null
+++ b/drivers/input/joystick/joydump.c
@@ -0,0 +1,175 @@
+/*
+ * $Id: joydump.c,v 1.1 2002/01/23 06:56:16 jsimmons Exp $
+ *
+ *  Copyright (c) 1996-2001 Vojtech Pavlik
+ */
+
+/*
+ * This is just a very simple driver that can dump the data
+ * out of the joystick port into the syslog ...
+ */
+
+/*
+ * 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/module.h>
+#include <linux/gameport.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC     "Gameport data dumper module"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define BUF_SIZE 256
+
+struct joydump {
+        unsigned int time;
+        unsigned char data;
+};
+
+static int joydump_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+        struct joydump *buf;    /* all entries */
+        struct joydump *dump, *prev;    /* one entry each */
+        int axes[4], buttons;
+        int i, j, t, timeout;
+        unsigned long flags;
+        unsigned char u;
+
+        printk(KERN_INFO "joydump: ,------------------ START ----------------.\n");
+        printk(KERN_INFO "joydump: | Dumping: %30s |\n", gameport->phys);
+        printk(KERN_INFO "joydump: | Speed: %28d kHz |\n", gameport->speed);
+
+        if (gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
+
+                printk(KERN_INFO "joydump: | Raw mode not available - trying cooked.    |\n");
+
+                if (gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
+
+                        printk(KERN_INFO "joydump: | Cooked not available either. Failing.   |\n");
+                        printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+                        return -ENODEV;
+                }
+
+                gameport_cooked_read(gameport, axes, &buttons);
+
+                for (i = 0; i < 4; i++)
+                        printk(KERN_INFO "joydump: | Axis %d: %4d.                           |\n", i, axes[i]);
+                printk(KERN_INFO "joydump: | Buttons %02x.                             |\n", buttons);
+                printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+        }
+
+        timeout = gameport_time(gameport, 10000); /* 10 ms */
+
+        buf = kmalloc(BUF_SIZE * sizeof(struct joydump), GFP_KERNEL);
+        if (!buf) {
+                printk(KERN_INFO "joydump: no memory for testing\n");
+                goto jd_end;
+        }
+        dump = buf;
+        t = 0;
+        i = 1;
+
+        local_irq_save(flags);
+
+        u = gameport_read(gameport);
+
+        dump->data = u;
+        dump->time = t;
+        dump++;
+
+        gameport_trigger(gameport);
+
+        while (i < BUF_SIZE && t < timeout) {
+
+                dump->data = gameport_read(gameport);
+
+                if (dump->data ^ u) {
+                        u = dump->data;
+                        dump->time = t;
+                        i++;
+                        dump++;
+                }
+                t++;
+        }
+
+        local_irq_restore(flags);
+
+/*
+ * Dump data.
+ */
+
+        t = i;
+        dump = buf;
+        prev = dump;
+
+        printk(KERN_INFO "joydump: >------------------ DATA -----------------<\n");
+        printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ", 0, 0);
+        for (j = 7; j >= 0; j--)
+                printk("%d", (dump->data >> j) & 1);
+        printk(" |\n");
+        dump++;
+
+        for (i = 1; i < t; i++, dump++, prev++) {
+                printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ",
+                        i, dump->time - prev->time);
+                for (j = 7; j >= 0; j--)
+                        printk("%d", (dump->data >> j) & 1);
+                printk(" |\n");
+        }
+        kfree(buf);
+
+jd_end:
+        printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+
+        return 0;
+}
+
+static void joydump_disconnect(struct gameport *gameport)
+{
+        gameport_close(gameport);
+}
+
+static struct gameport_driver joydump_drv = {
+        .driver         = {
+                .name   = "joydump",
+        },
+        .description    = DRIVER_DESC,
+        .connect        = joydump_connect,
+        .disconnect     = joydump_disconnect,
+};
+
+static int __init joydump_init(void)
+{
+        gameport_register_driver(&joydump_drv);
+        return 0;
+}
+
+static void __exit joydump_exit(void)
+{
+        gameport_unregister_driver(&joydump_drv);
+}
+
+module_init(joydump_init);
+module_exit(joydump_exit);