/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Elan I2C/SMBus Touchpad driver
*
* Copyright (c) 2013 ELAN Microelectronics Corp.
*
* Author: 林政維 (Duson Lin) <[email protected]>
*
* Based on cyapa driver:
* copyright (c) 2011-2012 Cypress Semiconductor, Inc.
* copyright (c) 2011-2012 Google, Inc.
*
* Trademarks are the property of their respective owners.
*/
#ifndef _ELAN_I2C_H
#define _ELAN_I2C_H
#include <linux/types.h>
#define ETP_ENABLE_ABS 0x0001
#define ETP_ENABLE_CALIBRATE 0x0002
#define ETP_DISABLE_CALIBRATE 0x0000
#define ETP_DISABLE_POWER 0x0001
#define ETP_PRESSURE_OFFSET 25
#define ETP_CALIBRATE_MAX_LEN 3
#define ETP_FEATURE_REPORT_MK BIT(0)
#define ETP_REPORT_ID 0x5D
#define ETP_TP_REPORT_ID 0x5E
#define ETP_TP_REPORT_ID2 0x5F
#define ETP_REPORT_ID2 0x60 /* High precision report */
#define ETP_REPORT_ID_OFFSET 2
#define ETP_TOUCH_INFO_OFFSET 3
#define ETP_FINGER_DATA_OFFSET 4
#define ETP_HOVER_INFO_OFFSET 30
#define ETP_MK_DATA_OFFSET 33 /* For high precision reports */
#define ETP_MAX_REPORT_LEN 39
#define ETP_MAX_FINGERS 5
#define ETP_FINGER_DATA_LEN 5
/* IAP Firmware handling */
#define ETP_PRODUCT_ID_FORMAT_STRING "%d.0"
#define ETP_FW_NAME "elan_i2c_" ETP_PRODUCT_ID_FORMAT_STRING ".bin"
#define ETP_IAP_START_ADDR 0x0083
#define ETP_FW_IAP_PAGE_ERR (1 << 5)
#define ETP_FW_IAP_INTF_ERR (1 << 4)
#define ETP_FW_PAGE_SIZE 64
#define ETP_FW_PAGE_SIZE_128 128
#define ETP_FW_PAGE_SIZE_512 512
#define ETP_FW_SIGNATURE_SIZE 6
#define ETP_PRODUCT_ID_WHITEBOX 0x00B8
#define ETP_PRODUCT_ID_VOXEL 0x00BF
#define ETP_PRODUCT_ID_DELBIN 0x00C2
#define ETP_PRODUCT_ID_MAGPIE 0x0120
#define ETP_PRODUCT_ID_BOBBA 0x0121
struct i2c_client;
struct completion;
enum tp_mode {
IAP_MODE = 1,
MAIN_MODE
};
struct elan_transport_ops {
int (*initialize)(struct i2c_client *client);
int (*sleep_control)(struct i2c_client *, bool sleep);
int (*power_control)(struct i2c_client *, bool enable);
int (*set_mode)(struct i2c_client *client, u8 mode);
int (*calibrate)(struct i2c_client *client);
int (*calibrate_result)(struct i2c_client *client, u8 *val);
int (*get_baseline_data)(struct i2c_client *client,
bool max_baseline, u8 *value);
int (*get_version)(struct i2c_client *client, u8 pattern, bool iap,
u8 *version);
int (*get_sm_version)(struct i2c_client *client, u8 pattern,
u16 *ic_type, u8 *version, u8 *clickpad);
int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum);
int (*get_product_id)(struct i2c_client *client, u16 *id);
int (*get_max)(struct i2c_client *client,
unsigned int *max_x, unsigned int *max_y);
int (*get_resolution)(struct i2c_client *client,
u8 *hw_res_x, u8 *hw_res_y);
int (*get_num_traces)(struct i2c_client *client,
unsigned int *x_tracenum,
unsigned int *y_tracenum);
int (*iap_get_mode)(struct i2c_client *client, enum tp_mode *mode);
int (*iap_reset)(struct i2c_client *client);
int (*prepare_fw_update)(struct i2c_client *client, u16 ic_type,
u8 iap_version, u16 fw_page_size);
int (*write_fw_block)(struct i2c_client *client, u16 fw_page_size,
const u8 *page, u16 checksum, int idx);
int (*finish_fw_update)(struct i2c_client *client,
struct completion *reset_done);
int (*get_report_features)(struct i2c_client *client, u8 pattern,
unsigned int *features,
unsigned int *report_len);
int (*get_report)(struct i2c_client *client, u8 *report,
unsigned int report_len);
int (*get_pressure_adjustment)(struct i2c_client *client,
int *adjustment);
int (*get_pattern)(struct i2c_client *client, u8 *pattern);
};
extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops;
#endif /* _ELAN_I2C_H */
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