Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 205 insertions, 0 deletions

diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c
new file mode 100644
index 000000000000..c9d0a153671c
--- /dev/null
+++ b/drivers/input/touchscreen/gunze.c
@@ -0,0 +1,205 @@
+/*
+ * $Id: gunze.c,v 1.12 2001/09/25 10:12:07 vojtech Exp $
+ *
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ */
+
+/*
+ * Gunze AHL-51S touchscreen 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/errno.h>
+#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     "Gunze AHL-51S touchscreen driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define GUNZE_MAX_LENGTH        10
+
+static char *gunze_name = "Gunze AHL-51S TouchScreen";
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct gunze {
+        struct input_dev dev;
+        struct serio *serio;
+        int idx;
+        unsigned char data[GUNZE_MAX_LENGTH];
+        char phys[32];
+};
+
+static void gunze_process_packet(struct gunze* gunze, struct pt_regs *regs)
+{
+        struct input_dev *dev = &gunze->dev;
+
+        if (gunze->idx != GUNZE_MAX_LENGTH || gunze->data[5] != ',' ||
+                (gunze->data[0] != 'T' && gunze->data[0] != 'R')) {
+                gunze->data[10] = 0;
+                printk(KERN_WARNING "gunze.c: bad packet: >%s<\n", gunze->data);
+                return;
+        }
+
+        input_regs(dev, regs);
+        input_report_abs(dev, ABS_X, simple_strtoul(gunze->data + 1, NULL, 10));
+        input_report_abs(dev, ABS_Y, 1024 - simple_strtoul(gunze->data + 6, NULL, 10));
+        input_report_key(dev, BTN_TOUCH, gunze->data[0] == 'T');
+        input_sync(dev);
+}
+
+static irqreturn_t gunze_interrupt(struct serio *serio,
+                unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+        struct gunze* gunze = serio_get_drvdata(serio);
+
+        if (data == '\r') {
+                gunze_process_packet(gunze, regs);
+                gunze->idx = 0;
+        } else {
+                if (gunze->idx < GUNZE_MAX_LENGTH)
+                        gunze->data[gunze->idx++] = data;
+        }
+        return IRQ_HANDLED;
+}
+
+/*
+ * gunze_disconnect() is the opposite of gunze_connect()
+ */
+
+static void gunze_disconnect(struct serio *serio)
+{
+        struct gunze* gunze = serio_get_drvdata(serio);
+
+        input_unregister_device(&gunze->dev);
+        serio_close(serio);
+        serio_set_drvdata(serio, NULL);
+        kfree(gunze);
+}
+
+/*
+ * gunze_connect() is the routine that is called when someone adds a
+ * new serio device that supports Gunze protocol and registers it as
+ * an input device.
+ */
+
+static int gunze_connect(struct serio *serio, struct serio_driver *drv)
+{
+        struct gunze *gunze;
+        int err;
+
+        if (!(gunze = kmalloc(sizeof(struct gunze), GFP_KERNEL)))
+                return -ENOMEM;
+
+        memset(gunze, 0, sizeof(struct gunze));
+
+        init_input_dev(&gunze->dev);
+        gunze->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+        gunze->dev.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+        input_set_abs_params(&gunze->dev, ABS_X, 24, 1000, 0, 0);
+        input_set_abs_params(&gunze->dev, ABS_Y, 24, 1000, 0, 0);
+
+        gunze->serio = serio;
+
+        sprintf(gunze->phys, "%s/input0", serio->phys);
+
+        gunze->dev.private = gunze;
+        gunze->dev.name = gunze_name;
+        gunze->dev.phys = gunze->phys;
+        gunze->dev.id.bustype = BUS_RS232;
+        gunze->dev.id.vendor = SERIO_GUNZE;
+        gunze->dev.id.product = 0x0051;
+        gunze->dev.id.version = 0x0100;
+
+        serio_set_drvdata(serio, gunze);
+
+        err = serio_open(serio, drv);
+        if (err) {
+                serio_set_drvdata(serio, NULL);
+                kfree(gunze);
+                return err;
+        }
+
+        input_register_device(&gunze->dev);
+
+        printk(KERN_INFO "input: %s on %s\n", gunze_name, serio->phys);
+
+        return 0;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id gunze_serio_ids[] = {
+        {
+                .type   = SERIO_RS232,
+                .proto  = SERIO_GUNZE,
+                .id     = SERIO_ANY,
+                .extra  = SERIO_ANY,
+        },
+        { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, gunze_serio_ids);
+
+static struct serio_driver gunze_drv = {
+        .driver         = {
+                .name   = "gunze",
+        },
+        .description    = DRIVER_DESC,
+        .id_table       = gunze_serio_ids,
+        .interrupt      = gunze_interrupt,
+        .connect        = gunze_connect,
+        .disconnect     = gunze_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init gunze_init(void)
+{
+        serio_register_driver(&gunze_drv);
+        return 0;
+}
+
+static void __exit gunze_exit(void)
+{
+        serio_unregister_driver(&gunze_drv);
+}
+
+module_init(gunze_init);
+module_exit(gunze_exit);