linux-imx

/*

 *  USB Hanwang tablet support

 *

 *  Copyright (c) 2010 Xing Wei <weixing@hanwang.com.cn>

 *

 */

​

/*

 * 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/types.h>

#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/module.h>

#include <linux/usb/input.h>

​

MODULE_AUTHOR("Xing Wei <weixing@hanwang.com.cn>");

MODULE_DESCRIPTION("USB Hanwang tablet driver");

MODULE_LICENSE("GPL");

​

#define USB_VENDOR_ID_HANWANG       0x0b57

#define HANWANG_TABLET_INT_CLASS    0x0003

#define HANWANG_TABLET_INT_SUB_CLASS    0x0001

#define HANWANG_TABLET_INT_PROTOCOL 0x0002

​

#define ART_MASTER_PKGLEN_MAX   10

​

/* device IDs */

#define STYLUS_DEVICE_ID    0x02

#define TOUCH_DEVICE_ID     0x03

#define CURSOR_DEVICE_ID    0x06

#define ERASER_DEVICE_ID    0x0A

#define PAD_DEVICE_ID       0x0F

​

/* match vendor and interface info  */

#define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \

    .match_flags = USB_DEVICE_ID_MATCH_VENDOR \

        | USB_DEVICE_ID_MATCH_INT_INFO, \

    .idVendor = (vend), \

    .bInterfaceClass = (cl), \

    .bInterfaceSubClass = (sc), \

    .bInterfaceProtocol = (pr)

​

enum hanwang_tablet_type {

    HANWANG_ART_MASTER_III,

    HANWANG_ART_MASTER_HD,

    HANWANG_ART_MASTER_II,

};

​

struct hanwang {

    unsigned char *data;

    dma_addr_t data_dma;

    struct input_dev *dev;

    struct usb_device *usbdev;

    struct urb *irq;

    const struct hanwang_features *features;

    unsigned int current_tool;

    unsigned int current_id;

    char name[64];

    char phys[32];

};

​

struct hanwang_features {

    unsigned short pid;

    char *name;

    enum hanwang_tablet_type type;

    int pkg_len;

    int max_x;

    int max_y;

    int max_tilt_x;

    int max_tilt_y;

    int max_pressure;

};

​

static const struct hanwang_features features_array[] = {

    { 0x8528, "Hanwang Art Master III 0906", HANWANG_ART_MASTER_III,

      ART_MASTER_PKGLEN_MAX, 0x5757, 0x3692, 0x3f, 0x7f, 2048 },

    { 0x8529, "Hanwang Art Master III 0604", HANWANG_ART_MASTER_III,