linux-imx

/*

 *  Copyright (c) 2016 Masaki Ota <masaki.ota@jp.alps.com>

 *

 * 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.

 */

​

#include <linux/kernel.h>

#include <linux/hid.h>

#include <linux/input.h>

#include <linux/input/mt.h>

#include <linux/module.h>

#include <asm/unaligned.h>

#include "hid-ids.h"

​

/* ALPS Device Product ID */

#define HID_PRODUCT_ID_T3_BTNLESS   0xD0C0

#define HID_PRODUCT_ID_COSMO        0x1202

#define HID_PRODUCT_ID_U1_PTP_1     0x1207

#define HID_PRODUCT_ID_U1           0x1209

#define HID_PRODUCT_ID_U1_PTP_2     0x120A

#define HID_PRODUCT_ID_U1_DUAL      0x120B

#define HID_PRODUCT_ID_T4_BTNLESS   0x120C

​

#define DEV_SINGLEPOINT             0x01

#define DEV_DUALPOINT               0x02

​

#define U1_MOUSE_REPORT_ID          0x01 /* Mouse data ReportID */

#define U1_ABSOLUTE_REPORT_ID       0x03 /* Absolute data ReportID */

#define U1_FEATURE_REPORT_ID        0x05 /* Feature ReportID */

#define U1_SP_ABSOLUTE_REPORT_ID    0x06 /* Feature ReportID */

​

#define U1_FEATURE_REPORT_LEN       0x08 /* Feature Report Length */

#define U1_FEATURE_REPORT_LEN_ALL   0x0A

#define U1_CMD_REGISTER_READ        0xD1

#define U1_CMD_REGISTER_WRITE       0xD2

​

#define U1_DEVTYPE_SP_SUPPORT       0x10 /* SP Support */

#define U1_DISABLE_DEV              0x01

#define U1_TP_ABS_MODE              0x02

#define U1_SP_ABS_MODE              0x80

​

#define ADDRESS_U1_DEV_CTRL_1   0x00800040

#define ADDRESS_U1_DEVICE_TYP   0x00800043

#define ADDRESS_U1_NUM_SENS_X   0x00800047

#define ADDRESS_U1_NUM_SENS_Y   0x00800048

#define ADDRESS_U1_PITCH_SENS_X 0x00800049

#define ADDRESS_U1_PITCH_SENS_Y 0x0080004A

#define ADDRESS_U1_RESO_DWN_ABS 0x0080004E

#define ADDRESS_U1_PAD_BTN      0x00800052

#define ADDRESS_U1_SP_BTN       0x0080009F

​

#define T4_INPUT_REPORT_LEN         sizeof(struct t4_input_report)

#define T4_FEATURE_REPORT_LEN       T4_INPUT_REPORT_LEN

#define T4_FEATURE_REPORT_ID        7

#define T4_CMD_REGISTER_READ            0x08

#define T4_CMD_REGISTER_WRITE           0x07

​

#define T4_ADDRESS_BASE             0xC2C0

#define PRM_SYS_CONFIG_1            (T4_ADDRESS_BASE + 0x0002)

#define T4_PRM_FEED_CONFIG_1        (T4_ADDRESS_BASE + 0x0004)

#define T4_PRM_FEED_CONFIG_4        (T4_ADDRESS_BASE + 0x001A)

#define T4_PRM_ID_CONFIG_3          (T4_ADDRESS_BASE + 0x00B0)

​

​

#define T4_FEEDCFG4_ADVANCED_ABS_ENABLE         0x01

#define T4_I2C_ABS  0x78

​

#define T4_COUNT_PER_ELECTRODE      256

#define MAX_TOUCHES 5

​

enum dev_num {

    U1,

    T4,

    UNKNOWN,

};

/**

 * struct u1_data

 *

 * @input: pointer to the kernel input device

 * @input2: pointer to the kernel input2 device

 * @hdev: pointer to the struct hid_device

 *

 * @dev_type: device type

 * @max_fingers: total number of fingers

 * @has_sp: boolean of sp existense

 * @sp_btn_info: button information

 * @x_active_len_mm: active area length of X (mm)

 * @y_active_len_mm: active area length of Y (mm)

 * @x_max: maximum x coordinate value