# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.602 -> 1.603
# (new) -> 1.1 drivers/usb/aiptek.c
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 02/08/05 greg@kroah.com 1.603
# USB: added aiptek driver
# --------------------------------------------
#
diff -Nru a/drivers/usb/aiptek.c b/drivers/usb/aiptek.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/drivers/usb/aiptek.c Mon Aug 5 14:46:49 2002
@@ -0,0 +1,332 @@
+/*
+ * Native support for the Aiptek 8000U
+ *
+ * Copyright (c) 2001 Chris Atenasio <chris@crud.net>
+ *
+ * based on wacom.c by
+ * Vojtech Pavlik <vojtech@suse.cz>
+ * Andreas Bach Aaen <abach@stofanet.dk>
+ * Clifford Wolf <clifford@clifford.at>
+ * Sam Mosel <sam.mosel@computer.org>
+ * James E. Blair <corvus@gnu.org>
+ * Daniel Egger <egger@suse.de>
+ *
+ *
+ * Many thanks to Oliver Kuechemann for his support.
+ *
+ * ChangeLog:
+ * v0.1 - Initial release
+ * v0.2 - Hack to get around fake event 28's.
+ * v0.3 - Make URB dynamic (Bryan W. Headley, Jun-8-2002)
+ */
+
+/*
+ * 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
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v0.3"
+#define DRIVER_AUTHOR "Chris Atenasio <chris@crud.net>"
+#define DRIVER_DESC "USB Aiptek 6000U/8000U tablet driver (Linux 2.4.x)"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Aiptek status packet:
+ *
+ * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
+ * byte0 0 0 0 0 0 0 1 0
+ * byte1 X7 X6 X5 X4 X3 X2 X1 X0
+ * byte2 X15 X14 X13 X12 X11 X10 X9 X8
+ * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+ * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
+ * byte5 * * * BS2 BS1 Tip DV IR
+ * byte6 P7 P6 P5 P4 P3 P2 P1 P0
+ * byte7 P15 P14 P13 P12 P11 P10 P9 P8
+ *
+ * IR: In Range = Proximity on
+ * DV = Data Valid
+ *
+ *
+ * Command Summary:
+ *
+ * Command/Data Description Return Bytes Return Value
+ * 0x10/0x00 SwitchToMouse 0
+ * 0x10/0x01 SwitchToTablet 0
+ * 0x18/0x04 Resolution500LPI 0
+ * 0x17/0x00 FilterOn 0
+ * 0x12/0xFF AutoGainOn 0
+ * 0x01/0x00 GetXExtension 2 MaxX
+ * 0x01/0x01 GetYExtension 2 MaxY
+ * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE
+ * 0x03/0x00 GetODMCode 2 ODMCode
+ * 0x08/0x00 GetPressureLevels 2 =512
+ * 0x04/0x00 GetFirmwareVersion 2 Firmware Version
+ *
+ *
+ * To initialize the tablet:
+ *
+ * (1) Send command Resolution500LPI
+ * (2) Option Commands (GetXExtension, GetYExtension)
+ * (3) Send command SwitchToTablet
+ */
+
+#define USB_VENDOR_ID_AIPTEK 0x08ca
+
+struct aiptek_features {
+ char *name;
+ int pktlen;
+ int x_max;
+ int y_max;
+ int pressure_min;
+ int pressure_max;
+ void (*irq) (struct urb * urb);
+ unsigned long evbit;
+ unsigned long absbit;
+ unsigned long relbit;
+ unsigned long btnbit;
+ unsigned long digibit;
+};
+
+struct aiptek {
+ signed char data[10];
+ struct input_dev dev;
+ struct usb_device *usbdev;
+ struct urb *irq;
+ struct aiptek_features *features;
+ int tool;
+ int open;
+};
+
+static void
+aiptek_irq(struct urb *urb)
+{
+ struct aiptek *aiptek = urb->context;
+ unsigned char *data = aiptek->data;
+ struct input_dev *dev = &aiptek->dev;
+ int x;
+ int y;
+ int pressure;
+ int proximity;
+
+ if (urb->status)
+ return;
+
+ if ((data[0] & 2) == 0) {
+ dbg("received unknown report #%d", data[0]);
+ }
+
+ proximity = data[5] & 0x01;
+ input_report_key(dev, BTN_TOOL_PEN, proximity);
+
+ x = ((__u32) data[1]) | ((__u32) data[2] << 8);
+ y = ((__u32) data[3]) | ((__u32) data[4] << 8);
+ pressure = ((__u32) data[6]) | ((__u32) data[7] << 8);
+ pressure -= aiptek->features->pressure_min;
+
+ if (pressure < 0) {
+ pressure = 0;
+ }
+
+ if (proximity) {
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ input_report_abs(dev, ABS_PRESSURE, pressure);
+ input_report_key(dev, BTN_TOUCH, data[5] & 0x04);
+ input_report_key(dev, BTN_STYLUS, data[5] & 0x08);
+ input_report_key(dev, BTN_STYLUS2, data[5] & 0x10);
+ }
+
+}
+
+struct aiptek_features aiptek_features[] = {
+ {"Aiptek 6000U/8000U",
+ 8, 3000, 2250, 26, 511, aiptek_irq, 0, 0, 0, 0},
+ {NULL, 0}
+};
+
+struct usb_device_id aiptek_ids[] = {
+ {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20), driver_info:0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(usb, aiptek_ids);
+
+static int
+aiptek_open(struct input_dev *dev)
+{
+ struct aiptek *aiptek = dev->private;
+
+ if (aiptek->open++)
+ return 0;
+
+ aiptek->irq->dev = aiptek->usbdev;
+ if (usb_submit_urb(aiptek->irq))
+ return -EIO;
+
+ return 0;
+}
+
+static void
+aiptek_close(struct input_dev *dev)
+{
+ struct aiptek *aiptek = dev->private;
+
+ if (!--aiptek->open)
+ usb_unlink_urb(aiptek->irq);
+}
+
+static void
+aiptek_command(struct usb_device *dev, unsigned int ifnum,
+ unsigned char command, unsigned char data)
+{
+ __u8 buf[3];
+
+ buf[0] = 4;
+ buf[1] = command;
+ buf[2] = data;
+
+ if (usb_set_report(dev, ifnum, 3, 2, buf, 3) != 3) {
+ dbg("aiptek_command: 0x%x 0x%x\n", command, data);
+ }
+}
+
+static void*
+aiptek_probe(struct usb_device *dev, unsigned int ifnum,
+ const struct usb_device_id *id)
+{
+ struct usb_endpoint_descriptor *endpoint;
+ struct aiptek *aiptek;
+
+ if (!(aiptek = kmalloc(sizeof (struct aiptek), GFP_KERNEL)))
+ return NULL;
+
+ memset(aiptek, 0, sizeof (struct aiptek));
+
+ aiptek->irq = usb_alloc_urb(0);
+ if (!aiptek->irq) {
+ kfree(aiptek);
+ return NULL;
+ }
+
+ // Resolution500LPI
+ aiptek_command(dev, ifnum, 0x18, 0x04);
+
+ // SwitchToTablet
+ aiptek_command(dev, ifnum, 0x10, 0x01);
+
+ aiptek->features = aiptek_features + id->driver_info;
+
+ aiptek->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_MSC) |
+ aiptek->features->evbit;
+
+ aiptek->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) |
+ BIT(ABS_MISC) | aiptek->features->absbit;
+
+ aiptek->dev.relbit[0] |= aiptek->features->relbit;
+
+ aiptek->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) |
+ BIT(BTN_MIDDLE) | aiptek->features->btnbit;
+
+ aiptek->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) |
+ BIT(BTN_TOOL_MOUSE) | BIT(BTN_TOUCH) |
+ BIT(BTN_STYLUS) | BIT(BTN_STYLUS2) | aiptek->features->digibit;
+
+ aiptek->dev.mscbit[0] = BIT(MSC_SERIAL);
+
+ aiptek->dev.absmax[ABS_X] = aiptek->features->x_max;
+ aiptek->dev.absmax[ABS_Y] = aiptek->features->y_max;
+ aiptek->dev.absmax[ABS_PRESSURE] = aiptek->features->pressure_max -
+ aiptek->features->pressure_min;
+
+ aiptek->dev.absfuzz[ABS_X] = 0;
+ aiptek->dev.absfuzz[ABS_Y] = 0;
+
+ aiptek->dev.private = aiptek;
+ aiptek->dev.open = aiptek_open;
+ aiptek->dev.close = aiptek_close;
+
+ aiptek->dev.name = aiptek->features->name;
+ aiptek->dev.idbus = BUS_USB;
+ aiptek->dev.idvendor = dev->descriptor.idVendor;
+ aiptek->dev.idproduct = dev->descriptor.idProduct;
+ aiptek->dev.idversion = dev->descriptor.bcdDevice;
+ aiptek->usbdev = dev;
+
+ endpoint = dev->config[0].interface[ifnum].altsetting[0].endpoint + 0;
+
+ FILL_INT_URB(aiptek->irq,
+ dev,
+ usb_rcvintpipe(dev, endpoint->bEndpointAddress),
+ aiptek->data,
+ aiptek->features->pktlen,
+ aiptek->features->irq,
+ aiptek,
+ endpoint->bInterval);
+
+ input_register_device(&aiptek->dev);
+
+ printk(KERN_INFO "input%d: %s on usb%d:%d.%d\n",
+ aiptek->dev.number, aiptek->features->name, dev->bus->busnum,
+ dev->devnum, ifnum);
+
+ return aiptek;
+}
+
+static void
+aiptek_disconnect(struct usb_device *dev, void *ptr)
+{
+ struct aiptek *aiptek = ptr;
+ usb_unlink_urb(aiptek->irq);
+ input_unregister_device(&aiptek->dev);
+ usb_free_urb(aiptek->irq);
+ kfree(aiptek);
+}
+
+static struct usb_driver aiptek_driver = {
+ name:"aiptek",
+ probe:aiptek_probe,
+ disconnect:aiptek_disconnect,
+ id_table:aiptek_ids,
+};
+
+static int __init
+aiptek_init(void)
+{
+ usb_register(&aiptek_driver);
+ info(DRIVER_VERSION " " DRIVER_AUTHOR);
+ info(DRIVER_DESC);
+ return 0;
+}
+
+static void __exit
+aiptek_exit(void)
+{
+ usb_deregister(&aiptek_driver);
+}
+
+module_init(aiptek_init);
+module_exit(aiptek_exit);