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Date: Tue, 28 Dec 2010 09:45:23 -0800
From: Anton Chikin <kverlin@...il.com>
To: Jiri Kosina <jkosina@...e.cz>, linux-input@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Anton Chikin <anton.chikin@...aart.com>
Subject: [PATCH] HID: New driver for Panasonic Elite Panaboard UB-T780 usb hid device.
From: Anton Chikin <kverlin@...ntu.(none)>
Signed-off-by: Anton Chikin <anton.chikin@...aart.com>
---
drivers/hid/Kconfig | 6 +
drivers/hid/Makefile | 1 +
drivers/hid/hid-core.c | 1 +
drivers/hid/hid-ids.h | 3 +
drivers/hid/hid-ubt780.c | 885 ++++++++++++++++++++++++++++++++++++++++++++++
drivers/hid/hid-ubt780.h | 140 ++++++++
6 files changed, 1036 insertions(+), 0 deletions(-)
create mode 100644 drivers/hid/hid-ubt780.c
create mode 100644 drivers/hid/hid-ubt780.h
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 3052e29..a191093 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -296,6 +296,12 @@ config HID_ORTEK
---help---
Support for Ortek WKB-2000 wireless keyboard + mouse trackpad.
+config HID_PANASONIC_WHITEBOARD
+ tristate "Panasonic Elite Panaboard UB-T780"
+ depends on USB_HID
+ ---help---
+ Support for Panasonic Elite Panaboard - touch-enabled whiteboard from Panasonic.
+
config HID_PANTHERLORD
tristate "Pantherlord/GreenAsia game controller"
depends on USB_HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index c335605..4e32b8b 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -70,6 +70,7 @@ obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o
obj-$(CONFIG_HID_ZYDACRON) += hid-zydacron.o
obj-$(CONFIG_HID_WACOM) += hid-wacom.o
obj-$(CONFIG_HID_WALTOP) += hid-waltop.o
+obj-$(CONFIG_HID_PANASONIC_WHITEBOARD) += hid-ubt780.o
obj-$(CONFIG_USB_HID) += usbhid/
obj-$(CONFIG_USB_MOUSE) += usbhid/
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 88cb04e..63da114 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1365,6 +1365,7 @@ static const struct hid_device_id hid_blacklist[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC, USB_DEVICE_ID_PANABOARD_UBT780) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 3341baa..fa5f914 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -446,6 +446,9 @@
#define USB_VENDOR_ID_ORTEK 0x05a4
#define USB_DEVICE_ID_ORTEK_WKB2000 0x2000
+#define USB_VENDOR_ID_PANASONIC 0x04da
+#define USB_DEVICE_ID_PANABOARD_UBT780 0x1044
+
#define USB_VENDOR_ID_PANJIT 0x134c
#define USB_VENDOR_ID_PANTHERLORD 0x0810
diff --git a/drivers/hid/hid-ubt780.c b/drivers/hid/hid-ubt780.c
new file mode 100644
index 0000000..7f3c8db
--- /dev/null
+++ b/drivers/hid/hid-ubt780.c
@@ -0,0 +1,885 @@
+/*
+* USB HID driver for Panasonic elite Panaboard UTB780
+* Copyright (c) 2008 Igor Shakirov, Victor Grenke <comp.vision@...il.com>
+* Copyright (c) 2010-2011 Anton Chikin<anton.chikin@...aart.com> for Panasonic.
+
+* Information.
+* It's driver for supporting Panasonic Elite Panaboard HID USB device.
+* This code was inspired by hid-cando.c and hid-roccat.c(chrdev part)
+*/
+
+/* This file is part of USB HID driver for Panasonic elite Panaboard UTB780.
+*
+* This driver 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 3 of the License, or
+* (at your option) any later version.
+*
+* This driver 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 driver. If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/fs.h>
+#include <linux/cdev.h>
+
+#include "hid-ids.h"
+#include "hid-ubt780.h"
+#define UBT780_DEBUG
+
+#ifdef UBT780_DEBUG
+#define UBT_DUMMY_DEBUG if (ubt_debug) printk(KERN_DEBUG "ubt780: %s:%s line %i\n", __FILE__, __func__, __LINE__);
+#else
+#define UBT_DUMMY_DEBUG
+#endif
+
+static int ubt780_major;
+static struct cdev ubt780_cdev;
+static struct class *ubt780_class;
+static struct ubt780_chrdev *ubt780_table[UBT780_MAX_DEVICES];
+static DEFINE_MUTEX(minors_lock);
+
+static int ubt_debug = 0;
+module_param_named(debug_enabled, ubt_debug, int, 0600);
+MODULE_PARM_DESC(debug_enabled, "toggle UBT debugging messages");
+
+/*Calibration data module params*/
+static int isCalibrated = 0;
+
+static int LTx = -1;
+static int LTy = -1;
+static int LBx = -1;
+static int LBy = -1;
+static int RTx = -1;
+static int RTy = -1;
+static int RBx = -1;
+static int RBy = -1;
+
+static int LTX = -1;
+static int LTY = -1;
+static int LBX = -1;
+static int LBY = -1;
+static int RTX = -1;
+static int RTY = -1;
+static int RBX = -1;
+static int RBY = -1;
+
+static int Xoff_A = -1;
+static int Xmag_A = -1;
+static int Xmag_B = -1;
+static int Yoff_A = -1;
+static int Ymag_A = -1;
+static int Ymag_B = -1;
+
+module_param(mode, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(mode, "1 - digitizer mode, 0 - mouse mode");
+
+/*---------------------------------------------------------------------*/
+
+module_param(LTx, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(LTx, "point x of left-up corner, screen coordinate");
+
+module_param(LTy, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(LTy, "point y of left-up corner, screen coordinate");
+
+module_param(LBx, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(LBx, "point x of left-bot corner, screen coordinate");
+
+module_param(LBy, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(LBy, "point y of left-bot corner, screen coordinate");
+
+module_param(RTx, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(RTx, "point x of rigth-up corner, screen coordinate");
+
+module_param(RTy, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(RTy, "point y of rigth-up corner, screen coordinate");
+
+module_param(RBx, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(RBx, "point x of rigth-bot corner, screen coordinate");
+
+module_param(RBy, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(RBy, "point y of rigth-bot corner, screen coordinate");
+
+/*---------------------------------------------------------------------*/
+
+module_param(LTX, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(LTX, "point x of left-up corner, board coordinate");
+
+module_param(LTY, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(LTY, "point y of left-up corner, board coordinate");
+
+module_param(LBX, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(LBX, "point x of left-bot corner, board coordinate");
+
+module_param(LBY, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(LBY, "point y of left-bot corner, board coordinate");
+
+module_param(RTX, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(RTX, "point x of rigth-up corner, board coordinate");
+
+module_param(RTY, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(RTY, "point y of rigth-up corner, board coordinate");
+
+module_param(RBX, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(RBX, "point x of rigth-bot corner, board coordinate");
+
+module_param(RBY, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(RBY, "point y of rigth-bot corner, board coordinate");
+
+/**********************************************************************/
+
+module_param(Xoff_A, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(Xoff_A, "Precalculated data");
+
+module_param(Xmag_A, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(Xmag_A, "Precalculated data");
+
+module_param(Xmag_B, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(Xmag_B, "Precalculated data");
+
+module_param(Yoff_A, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(Yoff_A, "Precalculated data");
+
+module_param(Ymag_A, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(Ymag_A, "Precalculated data");
+
+module_param(Ymag_B, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+MODULE_PARM_DESC(Ymag_B, "Precalculated data");
+
+/* Character device forward declarations*/
+static int ubt780_open_io(struct inode *node, struct file *file);
+static int ubt780_release_io(struct inode *node, struct file *file);
+static long ubt780_ioctl(struct file *iofile,
+ unsigned int command,
+ unsigned long data);
+static int ubt780_chrdev_connect(struct hid_device *dev,
+ struct ubt780_data *data);
+static void ubt780_chrdev_disconnect(struct hid_device *hid);
+/*We are using function from usbhid module*/
+extern void usbhid_submit_report(struct hid_device *hid,
+ struct hid_report *report,
+ unsigned char dir);
+
+
+/* switch_mode : Our device has two modes: mouse mode in which it is acting like
+ * mouse, producing absolute coordinates [0 - 4095]
+ * The second mode is digitizer mode, which produce two raw clock measurments
+ * from ultrasound recievers in the top-left corner of the board. This mode more
+ * flexible and also reports batterey status of digitizer pen and penID.
+ */
+static int ubt780_switch_mode(struct hid_device *hid, unsigned char mode)
+{
+ int rc = 0;
+
+ struct hid_report *report = NULL;
+ struct hid_report *report_cur = NULL;
+ __s32 *val = NULL;
+ /** Packet forming */
+ UBT_DUMMY_DEBUG
+
+ list_for_each_entry(report,
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list,
+ list)
+ {
+ if (hid->report_enum[HID_OUTPUT_REPORT].numbered)
+ report_cur = report;
+ }
+
+ val = report_cur->field[0]->value;
+ val[0] = 0x7e;
+ val[1] = 0x04;
+ val[2] = 0x4d;
+ val[3] = mode;
+ val[4] = 0x00;
+ val[5] = 0x0a;
+ val[6] = 0x00;
+ val[7] = 0x00;
+
+ UBT_DUMMY_DEBUG
+
+ if (report_cur == NULL) {
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780 : switch mode : report_cur = 0");
+ return rc;
+ }
+
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780 :switch_mode:
+ usbhid_submit_report
+ drv=%p p=%p mode=%d",
+ hid, report_cur, mode);
+ /*Send report to device*/
+
+ usbhid_submit_report(hid, report_cur, USB_DIR_OUT);
+ UBT_DUMMY_DEBUG
+ return rc;
+}
+
+int xold = 0, yold = 0;
+
+/* PenToInt : converts ultrasound clock measurements to screen coordinates.*/
+bool ubt780_pen_to_int(int *pLeft, int *pRight)
+{
+ int left2, right2 , n, w_n, sqr, xx, yy;
+ bool bRet = false;
+ static int w = 1164;
+
+ left2 = (*pLeft)*(*pLeft);
+ right2 = (*pRight)*(*pRight);
+ UBT_DUMMY_DEBUG
+ if (left2 == 0 && right2 == 0) {
+ *pLeft = (int)xold;
+ *pRight = (int)yold;
+ if (ubt_debug)
+ printk(KERN_DEBUG
+ "ubt780_XY old values: %d,%d", xold, yold);
+ return true;
+ }
+
+ n = (right2 - left2) / (2*w);
+ w_n = w-n;
+
+ sqr = (2*left2 - (w_n * w_n));
+
+ if (sqr < 0)
+ return bRet;
+
+ xx = (w_n + int_sqrt(sqr)) / 2;
+ yy = xx + n;
+
+ if (xx < 0 || yy < 0)
+ return bRet;
+
+ *pLeft = (int)xx;
+ *pRight = (int)yy;
+ bRet = true;
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_XY: %d,%d", xx, yy);
+
+ return bRet;
+}
+/*Apply calibration to ultrasound clock measurements*/
+static bool ubt780_calibrate(int inX, int inY, int *outX, int *outY,
+ struct ubt780_calib *calib)
+{
+ int x, y, Y_LTY, X_LTX, Xoff, Xmag, Yoff, Ymag;
+
+ if (ubt780_pen_to_int(&inX, &inY)) {
+ xold = inX;
+ yold = inY;
+
+ Y_LTY = inY - calib->LTY;
+ X_LTX = inX - calib->LTX;
+ Xoff = Y_LTY * calib->Xoff_A + calib->LTX * 10000;
+ Xmag = (Y_LTY * calib->Xmag_A) / 10000;
+ Xmag += calib->Xmag_B;
+ Yoff = X_LTX * calib->Yoff_A + calib->LTY * 10000;
+ Ymag = X_LTX * calib->Ymag_A / 10000;
+ Ymag += calib->Ymag_B;
+
+ if (!Xmag)
+ Xmag = 1;
+ x = (inX * 10000 - Xoff) / Xmag;
+ x += calib->LTx;
+
+ if (!Ymag)
+ Ymag = 1;
+ y = (inY * 10000 - Yoff) / Ymag;
+ y += calib->LTy;
+
+ if (x < 0)
+ x = 0;
+ if (x > UBT780_MAX_AXIS_X)
+ x = UBT780_MAX_AXIS_X;
+
+ if (y < 0)
+ y = 0;
+ if (y > UBT780_MAX_AXIS_Y)
+ y = UBT780_MAX_AXIS_Y;
+
+ *outX = x;
+ *outY = y;
+ return true;
+ }
+ return false;
+}
+/*
+* input_mapping : Set appropriate bits for input device according to current
+* field, usage and usage page. For info about valid usage pages and usages
+* see include/linux/hid.h. For more info on input see
+* Documentation/input/input.txt and Documentation/input/input-programming.txt
+* and of course include/linux/input.h
+* What to return?
+* return < 0 - field was ignored
+* return > 0 - field was mapped
+* return == 0 - let hid driver map this field for you
+*/
+static int ubt780_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ /*Just ignore all fields*/
+ return -1;
+}
+
+/* event : Called on every single report field.
+ * Return :
+ * return == 0 - do generic input hidinput and hiddev processing.
+ * See hid_process_event in hid-core.c.
+ * return > 0 - finish processing.
+ */
+static int ubt780_event(struct hid_device *hid, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ /*Just prevent further processing by hid*/
+ return 1;
+}
+
+/*Set last known calibration data to device*/
+static void ubt780_set_calib_data(struct ubt780_data *drvdata)
+{
+
+ drvdata->calib.LTx = LTx;
+ drvdata->calib.LTy = LTy;
+ drvdata->calib.LBx = LBx;
+ drvdata->calib.LBy = LBy;
+ drvdata->calib.RTx = RTx;
+ drvdata->calib.RTy = RTy;
+ drvdata->calib.RBx = RBx;
+ drvdata->calib.RBy = RBy;
+
+ drvdata->calib.LTX = LTX;
+ drvdata->calib.LTY = LTY;
+ drvdata->calib.LBX = LBX;
+ drvdata->calib.LBY = LBY;
+ drvdata->calib.RTX = RTX;
+ drvdata->calib.RTY = RTY;
+ drvdata->calib.RBX = RBX;
+ drvdata->calib.RBY = RBY;
+
+ drvdata->calib.Xoff_A = Xoff_A;
+ drvdata->calib.Xmag_A = Xmag_A;
+ drvdata->calib.Xmag_B = Xmag_B;
+ drvdata->calib.Yoff_A = Yoff_A;
+ drvdata->calib.Ymag_A = Ymag_A;
+ drvdata->calib.Ymag_B = Ymag_B;
+
+ drvdata->calib.isCalibrated = isCalibrated;
+}
+
+static int ubt780_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int ret;
+ struct ubt780_data *drvdata;
+ struct hid_input *hidinput = NULL;
+ struct input_dev *input;
+
+ UBT_DUMMY_DEBUG
+ drvdata = kmalloc(sizeof(struct ubt780_data), GFP_KERNEL);
+ if (!drvdata) {
+ dev_err(&hdev->dev, "cannot allocate UB-T780 data\n");
+ return -ENOMEM;
+ }
+ /*Set last known calibration data for new deivce*/
+ ubt780_set_calib_data(drvdata);
+
+ hid_set_drvdata(hdev, drvdata);
+
+ ret = hid_parse(hdev);
+ if (!ret) {
+ if (ubt_debug)
+ printk(KERN_DEBUG "Trying hid_hw_start");
+ /*We need HIDINPUT dev only.*/
+ ret = hid_hw_start(hdev, HID_CONNECT_HIDINPUT);
+ if (ubt_debug)
+ printk(KERN_DEBUG "hid_hw_start() ret : %d", ret);
+ }
+
+ if (ret)
+ kfree(drvdata);
+ ubt780_chrdev_connect(hdev, drvdata);
+ /*Input mapping. We have 2 absolute axis and two buttons.*/
+ UBT_DUMMY_DEBUG
+ hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
+ if (hidinput == NULL) {
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780:probe:Failed to get hidinput");
+ goto skip_input;
+ }
+ UBT_DUMMY_DEBUG
+ input = hidinput->input;
+
+ UBT_DUMMY_DEBUG
+ /* Basics */
+ input->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS);
+ input->absbit[0] |= BIT(ABS_X) | BIT(ABS_Y);
+ set_bit(BTN_LEFT, input->keybit);
+ set_bit(BTN_RIGHT, input->keybit);
+
+ input->absmax[ABS_X] = UBT780_MAX_AXIS_X;
+ input->absmax[ABS_Y] = UBT780_MAX_AXIS_Y;
+ input->absmin[ABS_X] = 0;
+ input->absmin[ABS_Y] = 0;
+skip_input:
+ return ret;
+}
+/* Our own char device for ioctls */
+/*------------------------------------------------------------*/
+
+
+static const struct file_operations ubt780_fops = {
+ .owner = THIS_MODULE,
+ .open = ubt780_open_io,
+ .release = ubt780_release_io,
+ .unlocked_ioctl = ubt780_ioctl,
+};
+
+static int ubt780_chrdev_init(void)
+{
+ int result;
+ dev_t dev_id;
+
+ result = alloc_chrdev_region(&dev_id, UBT780_FIRST_MINOR,
+ UBT780_MAX_DEVICES, "ubt780_chr");
+
+ ubt780_major = MAJOR(dev_id);
+
+ if (result < 0) {
+ printk(KERN_WARNING "ubt780: can't get major number\n");
+ result = 0;
+ goto out;
+ }
+
+ ubt780_class = class_create(THIS_MODULE, "ubt780_chr");
+ if (IS_ERR(ubt780_class)) {
+ result = PTR_ERR(ubt780_class);
+ unregister_chrdev(ubt780_major, "ubt780_chr");
+ goto out;
+ }
+
+ cdev_init(&ubt780_cdev, &ubt780_fops);
+ cdev_add(&ubt780_cdev, dev_id, UBT780_MAX_DEVICES);
+out:
+ return result;
+}
+
+static void ubt780_chrdev_cleanup(void)
+{
+ dev_t dev_id = MKDEV(ubt780_major, 0);
+ cdev_del(&ubt780_cdev);
+ class_destroy(ubt780_class);
+ unregister_chrdev_region(dev_id, UBT780_MAX_DEVICES);
+}
+static int ubt780_chrdev_connect(struct hid_device *hid,
+ struct ubt780_data *drvdata)
+{
+ int minor, result;
+ struct ubt780_chrdev *dev;
+
+ dev = kzalloc(sizeof(struct ubt780_chrdev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ result = -EINVAL;
+
+ mutex_lock(&minors_lock);
+
+ for (minor = 0; minor < UBT780_MAX_DEVICES; minor++) {
+ if (ubt780_table[minor])
+ continue;
+ ubt780_table[minor] = dev;
+ result = 0;
+ break;
+ }
+ UBT_DUMMY_DEBUG
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_chrdev_connect:ret=%X", result);
+
+ if (result) {
+ mutex_unlock(&minors_lock);
+ kfree(dev);
+ goto out;
+ }
+
+ dev->dev = device_create(ubt780_class,
+ &hid->dev,
+ MKDEV(ubt780_major, minor),
+ NULL, "%s%d", "ubt780_", minor);
+
+ if (IS_ERR(dev->dev)) {
+ ubt780_table[minor] = NULL;
+ mutex_unlock(&minors_lock);
+ result = PTR_ERR(dev->dev);
+ kfree(dev);
+ drvdata->chrdev = NULL;
+ goto out;
+ }
+
+ UBT_DUMMY_DEBUG
+
+ mutex_unlock(&minors_lock);
+
+ dev->hid = hid;
+ drvdata->chrdev = dev;
+ dev->minor = minor;
+
+ dev->exist = 1;
+out:
+ return result;
+
+}
+
+static void ubt780_chrdev_disconnect(struct hid_device *hid)
+{
+
+ struct ubt780_data *ubt780_drv = hid_get_drvdata(hid);
+ struct ubt780_chrdev *ubt780 = ubt780_drv->chrdev;
+
+ if (!ubt780)
+ return;
+
+ ubt780->exist = 0;
+
+ mutex_lock(&minors_lock);
+ ubt780_table[ubt780->minor] = NULL;
+ mutex_unlock(&minors_lock);
+
+ device_destroy(ubt780_class, MKDEV(ubt780_major, ubt780->minor));
+
+ if (ubt780->open)
+ hid->ll_driver->close(hid);
+ else
+ kfree(ubt780);
+}
+
+
+static int ubt780_open_io(struct inode *node, struct file *file)
+{
+ unsigned int minor = iminor(node);
+ struct ubt780_chrdev *device;
+ int error = 0;
+
+ mutex_lock(&minors_lock);
+
+ device = ubt780_table[minor];
+
+ if (!device) {
+ printk(KERN_EMERG "ubt780 device with minor %d doesn't exist\n",
+ minor);
+ error = -ENODEV;
+ goto exit_unlock;
+ }
+
+ if (!device->open) {
+ device->open++;
+ /* power on device */
+ if (device->hid->ll_driver->power) {
+ error = device->hid->ll_driver->power(device->hid,
+ PM_HINT_FULLON);
+ if (error < 0) {
+ --device->open;
+ goto exit_unlock;
+ }
+ }
+ error = device->hid->ll_driver->open(device->hid);
+ if (error < 0) {
+ if (device->hid->ll_driver->power)
+ device->hid->ll_driver->power(device->hid,
+ PM_HINT_NORMAL);
+ --device->open;
+ goto exit_unlock;
+ }
+ } else
+ error = -EBUSY;
+
+exit_unlock:
+ mutex_unlock(&minors_lock);
+ return error;
+}
+
+static int ubt780_release_io(struct inode *node, struct file *file)
+{
+ unsigned int minor = iminor(node);
+ struct ubt780_chrdev *dev;
+ int ret;
+
+ mutex_lock(&minors_lock);
+ if (!ubt780_table[minor]) {
+ ret = -ENODEV;
+ goto unlock;
+ }
+
+ dev = ubt780_table[minor];
+ if (dev->open) {
+ dev->open--;
+ if (dev->hid->ll_driver->power)
+ dev->hid->ll_driver->power(dev->hid, PM_HINT_NORMAL);
+ dev->hid->ll_driver->close(dev->hid);
+ }
+
+ ret = 0;
+unlock:
+ mutex_unlock(&minors_lock);
+
+ return ret;
+}
+static long ubt780_ioctl(struct file *iofile, unsigned int command, unsigned long data)
+{
+
+ int retval = 0;
+ struct inode *inode = iofile->f_path.dentry->d_inode;
+ unsigned int minor = iminor(inode);
+ struct ubt780_chrdev *dev;
+ struct ubt780_data *drvdata;
+ mutex_lock(&minors_lock);
+ dev = ubt780_table[minor];
+ if (!dev) {
+ retval = -ENODEV;
+ goto out;
+ }
+ drvdata = hid_get_drvdata(dev->hid);
+ switch (command) {
+ case GET_BATTERY_STATUS: {
+ int *in = (int *) data;
+ struct ubt780_dgtzr *pack = &(drvdata->ubt_packet);
+ printk(KERN_DEBUG "ubt780_ioctl_io : GET_BATTERY_STATUS");
+ /* needs one toch of pen or DIGITIZER mode */
+ if (drvdata->current_mode == MODE_MOUSE || pack->report != 0x02) {
+ *in = BATTERY_STATUS_UKN;
+ } else {
+ unsigned char *data = pack->data;
+ *in = ((data[2] >> 3) & 0x01) ? BATTERY_STATUS_WEAK : BATTERY_STATUS_FINE;
+ }
+ retval = 0;
+ break;
+ }
+ case GET_LAST_PACKET_OLD:
+ case GET_LAST_PACKET:
+ {
+ struct ubt780_dgtzr *packsrc = &drvdata->ubt_packet;
+ struct ubt780_dgtzr *packdst = (struct ubt780_dgtzr *) data;
+ if (packsrc->report != 0x00) {
+ memcpy((void *)packdst, (void *)packsrc, sizeof(struct ubt780_dgtzr));
+ packsrc->report = 0;
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_ioctl_io : GET_LAST_PACKET2");
+ }
+ retval = 0;
+ break;
+ }
+ case GET_MODE:
+ {
+ int *in = (int *)data;
+ printk(KERN_DEBUG "ubt780_ioctl_io : GET_MODE");
+ *in = drvdata->current_mode;
+ retval = 0;
+ break;
+ }
+ case SET_MODE:
+ {
+ int *in = (int *)data;
+ unsigned char mode = (*in == MODE_MOUSE) ? 0 : 1;
+
+ drvdata->ubt_packet.report = 0;
+
+ if (ubt780_switch_mode(dev->hid, mode) != 0) {
+ retval = -EIO;
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_ioctl_io : SET_MODE error");
+ } else {
+ drvdata->current_mode = *in;
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_ioctl_io : SET_MODE ok");
+ retval = 0;
+ }
+ break;
+ }
+ case SET_CALIB:
+ {
+ struct ubt780_calib *calib = (struct ubt780_calib *) data;
+
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_ioctl_io : SET_CALIB");
+ LTx = calib->LTx;
+ LTy = calib->LTy;
+ LBx = calib->LBx;
+ LBy = calib->LBy;
+ RTx = calib->RTx;
+ RTy = calib->RTy;
+ RBx = calib->RBx;
+ RBy = calib->RBy;
+
+ LTX = calib->LTX;
+ LTY = calib->LTY;
+ LBX = calib->LBX;
+ LBY = calib->LBY;
+ RTX = calib->RTX;
+ RTY = calib->RTY;
+ RBX = calib->RBX;
+ RBY = calib->RBY;
+
+ Xoff_A = calib->Xoff_A;
+ Xmag_A = calib->Xmag_A;
+ Xmag_B = calib->Xmag_B;
+ Yoff_A = calib->Yoff_A;
+ Ymag_A = calib->Ymag_A;
+ Ymag_B = calib->Ymag_B;
+
+ isCalibrated = 1;
+
+ ubt780_set_calib_data(drvdata);
+
+ retval = 0;
+ break;
+ }
+ default:
+ {
+ retval = -EIO;
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_ioctl_io : unknown command %d", command);
+ break;
+ }
+ }
+out:
+ mutex_unlock(&minors_lock);
+ return retval;
+}
+/*----------------------------------------------------------------*/
+static void ubt780_report_input(struct input_dev *input,
+ unsigned int x,
+ unsigned int y,
+ int leftBtn,
+ int rightBtn)
+{
+ input_report_key(input, BTN_LEFT, leftBtn);
+ input_report_key(input, BTN_RIGHT, rightBtn);
+ input_sync(input);
+ input_report_abs(input, ABS_X, x);
+ input_report_abs(input, ABS_Y, y);
+ input_sync(input);
+}
+/*Called on raw reports frmo device*/
+static int ubt780_raw_event(struct hid_device *hdev,
+ struct hid_report *report,
+ u8 *data, int size)
+{
+ struct ubt780_data *driver_data = hid_get_drvdata(hdev);
+ struct ubt780_dgtzr *pack = &driver_data->ubt_packet;
+
+ struct hid_input *hidinput =
+ list_entry(hdev->inputs.next, struct hid_input, list);
+ struct input_dev *input = hidinput->input;
+
+ /*Save the packet for userspace processing*/
+ memcpy((void *)pack, (void *)data, size);
+ /*Mouse mode packet*/
+ if (pack->report == 0x01) {
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_mode: MM");
+
+ if (driver_data->current_mode == MODE_UKN)
+ driver_data->current_mode = MODE_MOUSE;
+ /*Switch to digitizer*/
+ if (driver_data->current_mode != MODE_MOUSE)
+ ubt780_switch_mode(hdev, 1);
+ }
+ /*Digitizer mode packet*/
+ else if (pack->report == 0x02) {
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_mode: DIG");
+ if (driver_data->current_mode == MODE_UKN)
+ driver_data->current_mode = MODE_DGTZR;
+
+ if (driver_data->current_mode == MODE_MOUSE) {
+ pack->report = 0;
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_current_mode: MOUSE");
+ /*Switch to mouse*/
+ ubt780_switch_mode(hdev, 0);
+ } else if (driver_data->current_mode == MODE_DGTZR) {
+ unsigned short * pCoord = (unsigned short *)(&pack->data[3]);
+ struct ubt780_calib *calib = &driver_data->calib;
+
+ int X = (int) pCoord[0];
+ int Y = (int) pCoord[1];
+
+ int leftBtn = pack->data[2] >> 5 & 0x01;
+ int rightBtn = pack->data[2] >> 4 & 0x01;
+
+ if (driver_data->calib.isCalibrated) {
+ if (ubt780_calibrate(X, Y, &X, &Y, calib)) {
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_mode:
+ Calibrated;
+ x=%d y=%d,left_btn=%d\n",
+ X, Y, leftBtn);
+ ubt780_report_input(input, X, Y, leftBtn, rightBtn);
+ }
+ } else {
+ if (ubt780_pen_to_int(&X, &Y))
+ ubt780_report_input(input, X, Y, leftBtn, rightBtn);
+ if (ubt_debug)
+ printk(KERN_DEBUG "ubt780_mode:
+ Not calibrated;
+ x=%d y=%d,left_btn=%d\n",
+ X, Y, leftBtn);
+ }
+ }
+ }
+ UBT_DUMMY_DEBUG
+ return 0;
+}
+static void ubt780_remove(struct hid_device *hdev)
+{
+ UBT_DUMMY_DEBUG
+ ubt780_chrdev_disconnect(hdev);
+ hid_hw_stop(hdev);
+ kfree(hid_get_drvdata(hdev));
+ hid_set_drvdata(hdev, NULL);
+}
+
+static struct hid_device_id ubt780_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC, USB_DEVICE_ID_PANABOARD_UBT780) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, ubt780_devices);
+
+static struct hid_driver ubt780_driver = {
+ .name = "ubt780",
+ .id_table = ubt780_devices,
+ .probe = ubt780_probe,
+ .remove = ubt780_remove,
+ .input_mapping = ubt780_input_mapping,
+ .raw_event = ubt780_raw_event,
+ .event = ubt780_event,
+};
+
+static int __init ubt780_init(void)
+{
+ int retval = ubt780_chrdev_init();
+ retval = hid_register_driver(&ubt780_driver);
+ UBT_DUMMY_DEBUG
+ return retval;
+}
+
+static void __exit ubt780_exit(void)
+{
+ UBT_DUMMY_DEBUG
+ hid_unregister_driver(&ubt780_driver);
+ ubt780_chrdev_cleanup();
+}
+
+module_init(ubt780_init);
+module_exit(ubt780_exit);
+
+MODULE_AUTHOR("Anton Chikin <kverlin@...il.com>");
+MODULE_DESCRIPTION("Panasonic UB-T780 driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-ubt780.h b/drivers/hid/hid-ubt780.h
new file mode 100644
index 0000000..c620630
--- /dev/null
+++ b/drivers/hid/hid-ubt780.h
@@ -0,0 +1,140 @@
+/*
+ * USB HID driver for Panasonic elite Panaboard UTB780
+ * Copyright (c) 2008 Igor Shakirov, Victor Grenke <comp.vision@...il.com>
+ * Copyright (c) 2011 Anton Chikin <anton.chikin@...aart.com> for Panasonic
+
+ * Information.
+ * It's driver for supporting Panasonic Elite Panaboard HID USB device.
+ */
+
+/* This file is part of USB HID driver for Panasonic elite Panaboard UTB780.
+*
+* This driver 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 3 of the License, or
+* (at your option) any later version.
+*
+* This driver 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 driver. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+
+#ifndef UBT780CTRL
+#define UBT780CTRL
+
+/*IOCTRL codes*/
+/** Battary status IOCTL defines */
+/*get battery status, return BATTERY_STATUS_UKN, BATTERY_STATUS_FINE, BATTERY_STATUS_WEAK*/
+#define GET_BATTERY_STATUS 0x01
+/*get last packet (ubt780_dgtzr). It is necessary for calibration*/
+#define GET_LAST_PACKET_OLD 0x02
+
+/** Modes of work IOCTL */
+/*get current mode, return MODE_MOUSE, MODE_DGTZR*/
+#define GET_MODE 0x10
+/*switch to mouse mode, MODE_MOUSE, MODE_DGTZR*/
+#define SET_MODE 0x11
+/*set calibration mode*/
+#define SET_CALIB 0x20
+/*get last packet (ubt780_dgtzr). It is necessary for calibration*/
+#define GET_LAST_PACKET 0x21
+
+/*return values for ioctrl*/
+/** Battary status defines */
+#define BATTERY_STATUS_FINE 0x00 /*battery is fine*/
+#define BATTERY_STATUS_WEAK 0x01 /*battery is weak*/
+/*unknown status. Status will be known after the first pen touch*/
+#define BATTERY_STATUS_UKN 0x02
+
+/** Mode status defines */
+#define MODE_MOUSE 0x10 /*current mode is mouse*/
+#define MODE_DGTZR 0x11 /*current mode is digitizer*/
+/*current mode is unknown. It will be known after the first pen touch*/
+#define MODE_UKN 0x12
+
+/*Char device declarations*/
+#define UBT780_MAX_DEVICES 0x05
+#define UBT780_FIRST_MINOR 0
+
+#define UBT780_MAX_AXIS_X 4095
+#define UBT780_MAX_AXIS_Y 4095
+/** Digitizer mode stucture: contains packet data */
+struct ubt780_dgtzr {
+ /** Report contains the type of packet: 0 - mouse, 1 - digitize */
+ unsigned char report;
+ /** Command is coming from device */
+ unsigned char command;
+ /** Packet size */
+ unsigned char number;
+ /** Data part of packet */
+ unsigned char data[17];
+};
+
+/** Calibration stucture: contains calibration data */
+struct ubt780_calib {
+ /** Screen coordinates: Left Top X */
+ int LTx;
+ /** Screen coordinates: Left Top Y */
+ int LTy;
+ /** Screen coordinates: Left Bottom X */
+ int LBx;
+ /** Screen coordinates: Left Bottom Y */
+ int LBy;
+ /** Screen coordinates: Right Top X */
+ int RTx;
+ /** Screen coordinates: Right Top Y */
+ int RTy;
+ /** Screen coordinates: Right Bottom X */
+ int RBx;
+ /** Screen coordinates: Right Bottom Y */
+ int RBy;
+
+ /** Board coordinates: Left Top X */
+ int LTX;
+ /** Board coordinates: Left Top Y */
+ int LTY;
+ /** Board coordinates: Left Bottom X */
+ int LBX;
+ /** Board coordinates: Left Bottom Y */
+ int LBY;
+ /** Board coordinates: Right Top X */
+ int RTX;
+ /** Board coordinates: Right Top Y */
+ int RTY;
+ /** Board coordinates: Right Bottom X */
+ int RBX;
+ /** Board coordinates: Right Bottom Y */
+ int RBY;
+
+ /** Calculated values */
+ int Xoff_A;
+ int Xmag_A;
+ int Xmag_B;
+ int Yoff_A;
+ int Ymag_A;
+ int Ymag_B;
+
+ int isCalibrated;
+};
+/*Character device data structure*/
+struct ubt780_chrdev {
+ unsigned int minor;
+ int exist;
+ int open;
+ struct hid_device *hid;
+ struct device *dev;
+};
+/*Driver data structure*/
+struct ubt780_data {
+ struct ubt780_calib calib;
+ struct ubt780_dgtzr ubt_packet;
+ struct ubt780_chrdev *chrdev;
+ unsigned char current_mode;
+};
+#endif /*UBT780CTRL*/
--
1.7.1
--
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