Initial import

1 files changed, 219 insertions, 0 deletions

diff --git a/drivers/input/joystick/warrior.c b/drivers/input/joystick/warrior.c
new file mode 100644
index 000000000..e13a9144a
--- /dev/null
+++ b/drivers/input/joystick/warrior.c
@@ -0,0 +1,219 @@
+/*
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Logitech WingMan Warrior joystick driver for Linux
+ */
+
+/*
+ * This program is free warftware; 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>
+
+#define DRIVER_DESC	"Logitech WingMan Warrior joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define WARRIOR_MAX_LENGTH	16
+static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 };
+
+/*
+ * Per-Warrior data.
+ */
+
+struct warrior {
+	struct input_dev *dev;
+	int idx, len;
+	unsigned char data[WARRIOR_MAX_LENGTH];
+	char phys[32];
+};
+
+/*
+ * warrior_process_packet() decodes packets the driver receives from the
+ * Warrior. It updates the data accordingly.
+ */
+
+static void warrior_process_packet(struct warrior *warrior)
+{
+	struct input_dev *dev = warrior->dev;
+	unsigned char *data = warrior->data;
+
+	if (!warrior->idx) return;
+
+	switch ((data[0] >> 4) & 7) {
+		case 1:					/* Button data */
+			input_report_key(dev, BTN_TRIGGER,  data[3]       & 1);
+			input_report_key(dev, BTN_THUMB,   (data[3] >> 1) & 1);
+			input_report_key(dev, BTN_TOP,     (data[3] >> 2) & 1);
+			input_report_key(dev, BTN_TOP2,    (data[3] >> 3) & 1);
+			break;
+		case 3:					/* XY-axis info->data */
+			input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] | ((data[0] & 4) << 5)));
+			input_report_abs(dev, ABS_Y, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
+			break;
+		case 5:					/* Throttle, spinner, hat info->data */
+			input_report_abs(dev, ABS_THROTTLE, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
+			input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0));
+			input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0));
+			input_report_rel(dev, REL_DIAL,  (data[2] | ((data[0] & 4) << 5)) - ((data[0] & 8) << 5));
+			break;
+	}
+	input_sync(dev);
+}
+
+/*
+ * warrior_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t warrior_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct warrior *warrior = serio_get_drvdata(serio);
+
+	if (data & 0x80) {
+		if (warrior->idx) warrior_process_packet(warrior);
+		warrior->idx = 0;
+		warrior->len = warrior_lengths[(data >> 4) & 7];
+	}
+
+	if (warrior->idx < warrior->len)
+		warrior->data[warrior->idx++] = data;
+
+	if (warrior->idx == warrior->len) {
+		if (warrior->idx) warrior_process_packet(warrior);
+		warrior->idx = 0;
+		warrior->len = 0;
+	}
+	return IRQ_HANDLED;
+}
+
+/*
+ * warrior_disconnect() is the opposite of warrior_connect()
+ */
+
+static void warrior_disconnect(struct serio *serio)
+{
+	struct warrior *warrior = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(warrior->dev);
+	kfree(warrior);
+}
+
+/*
+ * warrior_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Warrior, and if found, registers
+ * it as an input device.
+ */
+
+static int warrior_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct warrior *warrior;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+
+	warrior = kzalloc(sizeof(struct warrior), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!warrior || !input_dev)
+		goto fail1;
+
+	warrior->dev = input_dev;
+	snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys);
+
+	input_dev->name = "Logitech WingMan Warrior";
+	input_dev->phys = warrior->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_WARRIOR;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) |
+		BIT_MASK(EV_ABS);
+	input_dev->keybit[BIT_WORD(BTN_TRIGGER)] = BIT_MASK(BTN_TRIGGER) |
+		BIT_MASK(BTN_THUMB) | BIT_MASK(BTN_TOP) | BIT_MASK(BTN_TOP2);
+	input_dev->relbit[0] = BIT_MASK(REL_DIAL);
+	input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8);
+	input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8);
+	input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0);
+	input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0);
+	input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0);
+
+	serio_set_drvdata(serio, warrior);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(warrior->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(warrior);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id warrior_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_WARRIOR,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, warrior_serio_ids);
+
+static struct serio_driver warrior_drv = {
+	.driver		= {
+		.name	= "warrior",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= warrior_serio_ids,
+	.interrupt	= warrior_interrupt,
+	.connect	= warrior_connect,
+	.disconnect	= warrior_disconnect,
+};
+
+module_serio_driver(warrior_drv);