Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / input / joystick / joydump.c

diff --git a/kernel/drivers/input/joystick/joydump.c b/kernel/drivers/input/joystick/joydump.c
new file mode 100644 (file)
index 0000000..d1c6e48
--- /dev/null
+++ b/kernel/drivers/input/joystick/joydump.c
@@ -0,0 +1,161 @@
+/*
+ *  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/slab.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,
+};
+
+module_gameport_driver(joydump_drv);