LXR linux/drivers/input/mouse/elan

   1/*
   2 * Elan I2C/SMBus Touchpad driver
   3 *
   4 * Copyright (c) 2013 ELAN Microelectronics Corp.
   5 *
   6 * Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
   7 *
   8 * Based on cyapa driver:
   9 * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
  10 * copyright (c) 2011-2012 Google, Inc.
  11 *
  12 * This program is free software; you can redistribute it and/or modify it
  13 * under the terms of the GNU General Public License version 2 as published
  14 * by the Free Software Foundation.
  15 *
  16 * Trademarks are the property of their respective owners.
  17 */
  18
  19#ifndef _ELAN_I2C_H
  20#define _ELAN_I2C_H
  21
  22#include <linux/types.h>
  23
  24#define ETP_ENABLE_ABS          0x0001
  25#define ETP_ENABLE_CALIBRATE    0x0002
  26#define ETP_DISABLE_CALIBRATE   0x0000
  27#define ETP_DISABLE_POWER       0x0001
  28#define ETP_PRESSURE_OFFSET     25
  29
  30/* IAP Firmware handling */
  31#define ETP_PRODUCT_ID_FORMAT_STRING    "%d.0"
  32#define ETP_FW_NAME             "elan_i2c_" ETP_PRODUCT_ID_FORMAT_STRING ".bin"
  33#define ETP_IAP_START_ADDR      0x0083
  34#define ETP_FW_IAP_PAGE_ERR     (1 << 5)
  35#define ETP_FW_IAP_INTF_ERR     (1 << 4)
  36#define ETP_FW_PAGE_SIZE        64
  37#define ETP_FW_SIGNATURE_SIZE   6
  38
  39struct i2c_client;
  40struct completion;
  41
  42enum tp_mode {
  43        IAP_MODE = 1,
  44        MAIN_MODE
  45};
  46
  47struct elan_transport_ops {
  48        int (*initialize)(struct i2c_client *client);
  49        int (*sleep_control)(struct i2c_client *, bool sleep);
  50        int (*power_control)(struct i2c_client *, bool enable);
  51        int (*set_mode)(struct i2c_client *client, u8 mode);
  52
  53        int (*calibrate)(struct i2c_client *client);
  54        int (*calibrate_result)(struct i2c_client *client, u8 *val);
  55
  56        int (*get_baseline_data)(struct i2c_client *client,
  57                                 bool max_baseliune, u8 *value);
  58
  59        int (*get_version)(struct i2c_client *client, bool iap, u8 *version);
  60        int (*get_sm_version)(struct i2c_client *client,
  61                              u16 *ic_type, u8 *version, u8 *clickpad);
  62        int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum);
  63        int (*get_product_id)(struct i2c_client *client, u16 *id);
  64
  65        int (*get_max)(struct i2c_client *client,
  66                       unsigned int *max_x, unsigned int *max_y);
  67        int (*get_resolution)(struct i2c_client *client,
  68                              u8 *hw_res_x, u8 *hw_res_y);
  69        int (*get_num_traces)(struct i2c_client *client,
  70                              unsigned int *x_tracenum,
  71                              unsigned int *y_tracenum);
  72
  73        int (*iap_get_mode)(struct i2c_client *client, enum tp_mode *mode);
  74        int (*iap_reset)(struct i2c_client *client);
  75
  76        int (*prepare_fw_update)(struct i2c_client *client);
  77        int (*write_fw_block)(struct i2c_client *client,
  78                              const u8 *page, u16 checksum, int idx);
  79        int (*finish_fw_update)(struct i2c_client *client,
  80                                struct completion *reset_done);
  81
  82        int (*get_report)(struct i2c_client *client, u8 *report);
  83        int (*get_pressure_adjustment)(struct i2c_client *client,
  84                                       int *adjustment);
  85        int (*get_pattern)(struct i2c_client *client, u8 *pattern);
  86};
  87
  88extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops;
  89
  90#endif /* _ELAN_I2C_H */
  91