2 * Elan I2C/SMBus Touchpad driver
4 * Copyright (c) 2013 ELAN Microelectronics Corp.
6 * Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
8 * Based on cyapa driver:
9 * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
10 * copyright (c) 2011-2012 Google, Inc.
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.
16 * Trademarks are the property of their respective owners.
22 #include <linux/types.h>
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
30 #define ETP_CALIBRATE_MAX_LEN 3
32 /* IAP Firmware handling */
33 #define ETP_PRODUCT_ID_FORMAT_STRING "%d.0"
34 #define ETP_FW_NAME "/*(DEBLOBBED)*/"
35 #define ETP_IAP_START_ADDR 0x0083
36 #define ETP_FW_IAP_PAGE_ERR (1 << 5)
37 #define ETP_FW_IAP_INTF_ERR (1 << 4)
38 #define ETP_FW_PAGE_SIZE 64
39 #define ETP_FW_SIGNATURE_SIZE 6
49 struct elan_transport_ops {
50 int (*initialize)(struct i2c_client *client);
51 int (*sleep_control)(struct i2c_client *, bool sleep);
52 int (*power_control)(struct i2c_client *, bool enable);
53 int (*set_mode)(struct i2c_client *client, u8 mode);
55 int (*calibrate)(struct i2c_client *client);
56 int (*calibrate_result)(struct i2c_client *client, u8 *val);
58 int (*get_baseline_data)(struct i2c_client *client,
59 bool max_baseliune, u8 *value);
61 int (*get_version)(struct i2c_client *client, bool iap, u8 *version);
62 int (*get_sm_version)(struct i2c_client *client,
63 u8* ic_type, u8 *version);
64 int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum);
65 int (*get_product_id)(struct i2c_client *client, u16 *id);
67 int (*get_max)(struct i2c_client *client,
68 unsigned int *max_x, unsigned int *max_y);
69 int (*get_resolution)(struct i2c_client *client,
70 u8 *hw_res_x, u8 *hw_res_y);
71 int (*get_num_traces)(struct i2c_client *client,
72 unsigned int *x_tracenum,
73 unsigned int *y_tracenum);
75 int (*iap_get_mode)(struct i2c_client *client, enum tp_mode *mode);
76 int (*iap_reset)(struct i2c_client *client);
78 int (*prepare_fw_update)(struct i2c_client *client);
79 int (*write_fw_block)(struct i2c_client *client,
80 const u8 *page, u16 checksum, int idx);
81 int (*finish_fw_update)(struct i2c_client *client,
82 struct completion *reset_done);
84 int (*get_report)(struct i2c_client *client, u8 *report);
85 int (*get_pressure_adjustment)(struct i2c_client *client,
89 extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops;
91 #endif /* _ELAN_I2C_H */