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 39 struct i2c_client; 40 struct completion; 41 42 enum tp_mode { 43 IAP_MODE = 1, 44 MAIN_MODE 45 }; 46 47 struct 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 u8* ic_type, u8 *version); 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 }; 86 87 extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops; 88 89 #endif /* _ELAN_I2C_H */ 90