HID: Wacom Graphire Bluetooth driver
Based on the work by Andrew Zabolotny, an HID driver for the Bluetooth Wacom tablet. This is required as it uses a slightly different protocols from what's currently support by the drivers/input/wacom* driver, and those only support USB. A user-space patch is required to activate mode 2 of the Wacom tablet, as hidp does not support hid_output_raw_report. Signed-off-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Bastien Nocera
Jiri Kosina
Родитель
92e0d896ce
Коммит
ca2dcd40f5
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@ -271,6 +271,13 @@ config THRUSTMASTER_FF
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Say Y here if you have a THRUSTMASTER FireStore Dual Power 2 or
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a THRUSTMASTER Ferrari GT Rumble Force or Force Feedback Wheel.
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config HID_WACOM
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tristate "Wacom Bluetooth devices support" if EMBEDDED
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depends on BT_HIDP
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default !EMBEDDED
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---help---
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Support for Wacom Graphire Bluetooth tablet.
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config ZEROPLUS_FF
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tristate "Zeroplus based game controller support"
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depends on USB_HID
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@ -40,6 +40,7 @@ obj-$(CONFIG_GREENASIA_FF) += hid-gaff.o
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obj-$(CONFIG_THRUSTMASTER_FF) += hid-tmff.o
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obj-$(CONFIG_HID_TOPSEED) += hid-topseed.o
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obj-$(CONFIG_ZEROPLUS_FF) += hid-zpff.o
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obj-$(CONFIG_HID_WACOM) += hid-wacom.o
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obj-$(CONFIG_USB_HID) += usbhid/
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obj-$(CONFIG_USB_MOUSE) += usbhid/
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@ -1312,6 +1312,7 @@ static const struct hid_device_id hid_blacklist[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
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@ -414,6 +414,7 @@
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#define USB_DEVICE_ID_VERNIER_LCSPEC 0x0006
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#define USB_VENDOR_ID_WACOM 0x056a
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#define USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH 0x81
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#define USB_VENDOR_ID_WISEGROUP 0x0925
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#define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
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@ -0,0 +1,259 @@
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/*
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* Bluetooth Wacom Tablet support
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*
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
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* Copyright (c) 2006-2007 Jiri Kosina
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* Copyright (c) 2007 Paul Walmsley
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* Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
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* Copyright (c) 2006 Andrew Zabolotny <zap@homelink.ru>
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* Copyright (c) 2009 Bastien Nocera <hadess@hadess.net>
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <linux/device.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include "hid-ids.h"
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struct wacom_data {
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__u16 tool;
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unsigned char butstate;
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};
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static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
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u8 *raw_data, int size)
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{
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struct wacom_data *wdata = hid_get_drvdata(hdev);
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struct hid_input *hidinput;
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struct input_dev *input;
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unsigned char *data = (unsigned char *) raw_data;
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int tool, x, y, rw;
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if (!(hdev->claimed & HID_CLAIMED_INPUT))
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return 0;
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tool = 0;
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hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
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input = hidinput->input;
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/* Check if this is a tablet report */
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if (data[0] != 0x03)
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return 0;
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/* Get X & Y positions */
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x = le16_to_cpu(*(__le16 *) &data[2]);
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y = le16_to_cpu(*(__le16 *) &data[4]);
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/* Get current tool identifier */
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if (data[1] & 0x90) { /* If pen is in the in/active area */
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switch ((data[1] >> 5) & 3) {
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case 0: /* Pen */
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tool = BTN_TOOL_PEN;
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break;
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case 1: /* Rubber */
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tool = BTN_TOOL_RUBBER;
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break;
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case 2: /* Mouse with wheel */
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case 3: /* Mouse without wheel */
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tool = BTN_TOOL_MOUSE;
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break;
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}
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/* Reset tool if out of active tablet area */
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if (!(data[1] & 0x10))
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tool = 0;
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}
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/* If tool changed, notify input subsystem */
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if (wdata->tool != tool) {
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if (wdata->tool) {
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/* Completely reset old tool state */
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if (wdata->tool == BTN_TOOL_MOUSE) {
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input_report_key(input, BTN_LEFT, 0);
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input_report_key(input, BTN_RIGHT, 0);
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input_report_key(input, BTN_MIDDLE, 0);
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input_report_abs(input, ABS_DISTANCE,
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input->absmax[ABS_DISTANCE]);
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} else {
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input_report_key(input, BTN_TOUCH, 0);
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input_report_key(input, BTN_STYLUS, 0);
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input_report_key(input, BTN_STYLUS2, 0);
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input_report_abs(input, ABS_PRESSURE, 0);
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}
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input_report_key(input, wdata->tool, 0);
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input_sync(input);
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}
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wdata->tool = tool;
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if (tool)
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input_report_key(input, tool, 1);
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}
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if (tool) {
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input_report_abs(input, ABS_X, x);
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input_report_abs(input, ABS_Y, y);
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switch ((data[1] >> 5) & 3) {
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case 2: /* Mouse with wheel */
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input_report_key(input, BTN_MIDDLE, data[1] & 0x04);
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rw = (data[6] & 0x01) ? -1 :
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(data[6] & 0x02) ? 1 : 0;
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input_report_rel(input, REL_WHEEL, rw);
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/* fall through */
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case 3: /* Mouse without wheel */
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input_report_key(input, BTN_LEFT, data[1] & 0x01);
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input_report_key(input, BTN_RIGHT, data[1] & 0x02);
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/* Compute distance between mouse and tablet */
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rw = 44 - (data[6] >> 2);
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if (rw < 0)
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rw = 0;
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else if (rw > 31)
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rw = 31;
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input_report_abs(input, ABS_DISTANCE, rw);
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break;
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default:
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input_report_abs(input, ABS_PRESSURE,
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data[6] | (((__u16) (data[1] & 0x08)) << 5));
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input_report_key(input, BTN_TOUCH, data[1] & 0x01);
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input_report_key(input, BTN_STYLUS, data[1] & 0x02);
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input_report_key(input, BTN_STYLUS2, (tool == BTN_TOOL_PEN) && data[1] & 0x04);
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break;
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}
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input_sync(input);
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}
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/* Report the state of the two buttons at the top of the tablet
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* as two extra fingerpad keys (buttons 4 & 5). */
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rw = data[7] & 0x03;
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if (rw != wdata->butstate) {
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wdata->butstate = rw;
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input_report_key(input, BTN_0, rw & 0x02);
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input_report_key(input, BTN_1, rw & 0x01);
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input_event(input, EV_MSC, MSC_SERIAL, 0xf0);
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input_sync(input);
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}
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return 1;
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}
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static int wacom_probe(struct hid_device *hdev,
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const struct hid_device_id *id)
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{
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struct hid_input *hidinput;
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struct input_dev *input;
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struct wacom_data *wdata;
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int ret;
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wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
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if (wdata == NULL) {
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dev_err(&hdev->dev, "can't alloc wacom descriptor\n");
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return -ENOMEM;
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}
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hid_set_drvdata(hdev, wdata);
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ret = hid_parse(hdev);
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if (ret) {
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dev_err(&hdev->dev, "parse failed\n");
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goto err_free;
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}
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ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
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if (ret) {
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dev_err(&hdev->dev, "hw start failed\n");
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goto err_free;
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}
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hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
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input = hidinput->input;
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/* Basics */
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input->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_REL);
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input->absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) |
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BIT(ABS_PRESSURE) | BIT(ABS_DISTANCE);
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input->relbit[0] |= BIT(REL_WHEEL);
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set_bit(BTN_TOOL_PEN, input->keybit);
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set_bit(BTN_TOUCH, input->keybit);
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set_bit(BTN_STYLUS, input->keybit);
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set_bit(BTN_STYLUS2, input->keybit);
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set_bit(BTN_LEFT, input->keybit);
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set_bit(BTN_RIGHT, input->keybit);
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set_bit(BTN_MIDDLE, input->keybit);
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/* Pad */
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input->evbit[0] |= BIT(EV_MSC);
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input->mscbit[0] |= BIT(MSC_SERIAL);
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/* Distance, rubber and mouse */
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input->absbit[0] |= BIT(ABS_DISTANCE);
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set_bit(BTN_TOOL_RUBBER, input->keybit);
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set_bit(BTN_TOOL_MOUSE, input->keybit);
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input->absmax[ABS_PRESSURE] = 511;
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input->absmax[ABS_DISTANCE] = 32;
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input->absmax[ABS_X] = 16704;
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input->absmax[ABS_Y] = 12064;
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input->absfuzz[ABS_X] = 4;
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input->absfuzz[ABS_Y] = 4;
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return 0;
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err_free:
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kfree(wdata);
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return ret;
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}
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static void wacom_remove(struct hid_device *hdev)
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{
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hid_hw_stop(hdev);
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kfree(hid_get_drvdata(hdev));
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}
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static const struct hid_device_id wacom_devices[] = {
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, wacom_devices);
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static struct hid_driver wacom_driver = {
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.name = "wacom",
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.id_table = wacom_devices,
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.probe = wacom_probe,
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.remove = wacom_remove,
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.raw_event = wacom_raw_event,
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};
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static int wacom_init(void)
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{
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int ret;
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ret = hid_register_driver(&wacom_driver);
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if (ret)
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printk(KERN_ERR "can't register wacom driver\n");
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printk(KERN_ERR "wacom driver registered\n");
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return ret;
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}
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static void wacom_exit(void)
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{
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hid_unregister_driver(&wacom_driver);
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}
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module_init(wacom_init);
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module_exit(wacom_exit);
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MODULE_LICENSE("GPL");
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