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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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04d5ce620f
Newer controllers (identified as "pattern" version 2) send higher resolution reports, with 16-bit X and Y coordinates (previous generations used 12-bit values). These new high resolution reports use report ID of 0x60. SMbus controllers use the same buffer size for both the new and old reports, and because of that high resolution reports no longer carry area of contact data with SMbus. Signed-off-by: Jingle Wu <jingle.wu@emc.com.tw> Link: https://lore.kernel.org/r/20200710054116.5529-1-jingle.wu@emc.com.tw Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Elan I2C/SMBus Touchpad driver
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*
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* Copyright (c) 2013 ELAN Microelectronics Corp.
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*
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* Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
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*
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* Based on cyapa driver:
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* copyright (c) 2011-2012 Cypress Semiconductor, Inc.
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* copyright (c) 2011-2012 Google, Inc.
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*
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* Trademarks are the property of their respective owners.
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*/
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#ifndef _ELAN_I2C_H
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#define _ELAN_I2C_H
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#include <linux/types.h>
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#define ETP_ENABLE_ABS 0x0001
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#define ETP_ENABLE_CALIBRATE 0x0002
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#define ETP_DISABLE_CALIBRATE 0x0000
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#define ETP_DISABLE_POWER 0x0001
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#define ETP_PRESSURE_OFFSET 25
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#define ETP_CALIBRATE_MAX_LEN 3
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#define ETP_FEATURE_REPORT_MK BIT(0)
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/* IAP Firmware handling */
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#define ETP_PRODUCT_ID_FORMAT_STRING "%d.0"
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#define ETP_FW_NAME "elan_i2c_" ETP_PRODUCT_ID_FORMAT_STRING ".bin"
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#define ETP_IAP_START_ADDR 0x0083
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#define ETP_FW_IAP_PAGE_ERR (1 << 5)
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#define ETP_FW_IAP_INTF_ERR (1 << 4)
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#define ETP_FW_PAGE_SIZE 64
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#define ETP_FW_PAGE_SIZE_128 128
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#define ETP_FW_PAGE_SIZE_512 512
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#define ETP_FW_SIGNATURE_SIZE 6
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struct i2c_client;
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struct completion;
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enum tp_mode {
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IAP_MODE = 1,
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MAIN_MODE
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};
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struct elan_transport_ops {
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int (*initialize)(struct i2c_client *client);
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int (*sleep_control)(struct i2c_client *, bool sleep);
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int (*power_control)(struct i2c_client *, bool enable);
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int (*set_mode)(struct i2c_client *client, u8 mode);
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int (*calibrate)(struct i2c_client *client);
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int (*calibrate_result)(struct i2c_client *client, u8 *val);
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int (*get_baseline_data)(struct i2c_client *client,
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bool max_baseliune, u8 *value);
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int (*get_version)(struct i2c_client *client, u8 pattern, bool iap,
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u8 *version);
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int (*get_sm_version)(struct i2c_client *client, u8 pattern,
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u16 *ic_type, u8 *version, u8 *clickpad);
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int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum);
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int (*get_product_id)(struct i2c_client *client, u16 *id);
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int (*get_max)(struct i2c_client *client,
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unsigned int *max_x, unsigned int *max_y);
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int (*get_resolution)(struct i2c_client *client,
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u8 *hw_res_x, u8 *hw_res_y);
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int (*get_num_traces)(struct i2c_client *client,
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unsigned int *x_tracenum,
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unsigned int *y_tracenum);
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int (*iap_get_mode)(struct i2c_client *client, enum tp_mode *mode);
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int (*iap_reset)(struct i2c_client *client);
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int (*prepare_fw_update)(struct i2c_client *client, u16 ic_type,
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u8 iap_version);
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int (*write_fw_block)(struct i2c_client *client, u16 fw_page_size,
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const u8 *page, u16 checksum, int idx);
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int (*finish_fw_update)(struct i2c_client *client,
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struct completion *reset_done);
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int (*get_report_features)(struct i2c_client *client, u8 pattern,
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unsigned int *features,
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unsigned int *report_len);
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int (*get_report)(struct i2c_client *client, u8 *report,
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unsigned int report_len);
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int (*get_pressure_adjustment)(struct i2c_client *client,
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int *adjustment);
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int (*get_pattern)(struct i2c_client *client, u8 *pattern);
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};
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extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops;
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#endif /* _ELAN_I2C_H */
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