// SPDX-License-Identifier: GPL-2.0-only /* * Elan I2C/SMBus Touchpad driver - I2C interface * * 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. */ #include <linux/completion.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/sched.h> #include <linux/unaligned.h> #include "elan_i2c.h" /* Elan i2c commands */ #define ETP_I2C_RESET … #define ETP_I2C_WAKE_UP … #define ETP_I2C_SLEEP … #define ETP_I2C_DESC_CMD … #define ETP_I2C_REPORT_DESC_CMD … #define ETP_I2C_STAND_CMD … #define ETP_I2C_PATTERN_CMD … #define ETP_I2C_UNIQUEID_CMD … #define ETP_I2C_FW_VERSION_CMD … #define ETP_I2C_IC_TYPE_CMD … #define ETP_I2C_OSM_VERSION_CMD … #define ETP_I2C_NSM_VERSION_CMD … #define ETP_I2C_XY_TRACENUM_CMD … #define ETP_I2C_MAX_X_AXIS_CMD … #define ETP_I2C_MAX_Y_AXIS_CMD … #define ETP_I2C_RESOLUTION_CMD … #define ETP_I2C_PRESSURE_CMD … #define ETP_I2C_IAP_VERSION_CMD … #define ETP_I2C_IC_TYPE_P0_CMD … #define ETP_I2C_IAP_VERSION_P0_CMD … #define ETP_I2C_SET_CMD … #define ETP_I2C_POWER_CMD … #define ETP_I2C_FW_CHECKSUM_CMD … #define ETP_I2C_IAP_CTRL_CMD … #define ETP_I2C_IAP_CMD … #define ETP_I2C_IAP_RESET_CMD … #define ETP_I2C_IAP_CHECKSUM_CMD … #define ETP_I2C_CALIBRATE_CMD … #define ETP_I2C_MAX_BASELINE_CMD … #define ETP_I2C_MIN_BASELINE_CMD … #define ETP_I2C_IAP_TYPE_REG … #define ETP_I2C_IAP_TYPE_CMD … #define ETP_I2C_REPORT_LEN … #define ETP_I2C_REPORT_LEN_ID2 … #define ETP_I2C_REPORT_MAX_LEN … #define ETP_I2C_DESC_LENGTH … #define ETP_I2C_REPORT_DESC_LENGTH … #define ETP_I2C_INF_LENGTH … #define ETP_I2C_IAP_PASSWORD … #define ETP_I2C_IAP_RESET … #define ETP_I2C_MAIN_MODE_ON … #define ETP_I2C_IAP_REG_L … #define ETP_I2C_IAP_REG_H … static int elan_i2c_read_block(struct i2c_client *client, u16 reg, u8 *val, u16 len) { … } static int elan_i2c_read_cmd(struct i2c_client *client, u16 reg, u8 *val) { … } static int elan_i2c_write_cmd(struct i2c_client *client, u16 reg, u16 cmd) { … } static int elan_i2c_initialize(struct i2c_client *client) { … } static int elan_i2c_sleep_control(struct i2c_client *client, bool sleep) { … } static int elan_i2c_power_control(struct i2c_client *client, bool enable) { … } static int elan_i2c_set_mode(struct i2c_client *client, u8 mode) { … } static int elan_i2c_calibrate(struct i2c_client *client) { … } static int elan_i2c_calibrate_result(struct i2c_client *client, u8 *val) { … } static int elan_i2c_get_baseline_data(struct i2c_client *client, bool max_baseline, u8 *value) { … } static int elan_i2c_get_pattern(struct i2c_client *client, u8 *pattern) { … } static int elan_i2c_get_version(struct i2c_client *client, u8 pattern, bool iap, u8 *version) { … } static int elan_i2c_get_sm_version(struct i2c_client *client, u8 pattern, u16 *ic_type, u8 *version, u8 *clickpad) { … } static int elan_i2c_get_product_id(struct i2c_client *client, u16 *id) { … } static int elan_i2c_get_checksum(struct i2c_client *client, bool iap, u16 *csum) { … } static int elan_i2c_get_max(struct i2c_client *client, unsigned int *max_x, unsigned int *max_y) { … } static int elan_i2c_get_resolution(struct i2c_client *client, u8 *hw_res_x, u8 *hw_res_y) { … } static int elan_i2c_get_num_traces(struct i2c_client *client, unsigned int *x_traces, unsigned int *y_traces) { … } static int elan_i2c_get_pressure_adjustment(struct i2c_client *client, int *adjustment) { … } static int elan_i2c_iap_get_mode(struct i2c_client *client, enum tp_mode *mode) { … } static int elan_i2c_iap_reset(struct i2c_client *client) { … } static int elan_i2c_set_flash_key(struct i2c_client *client) { … } static int elan_read_write_iap_type(struct i2c_client *client, u16 fw_page_size) { … } static int elan_i2c_prepare_fw_update(struct i2c_client *client, u16 ic_type, u8 iap_version, u16 fw_page_size) { … } static int elan_i2c_write_fw_block(struct i2c_client *client, u16 fw_page_size, const u8 *page, u16 checksum, int idx) { … } static int elan_i2c_finish_fw_update(struct i2c_client *client, struct completion *completion) { … } static int elan_i2c_get_report_features(struct i2c_client *client, u8 pattern, unsigned int *features, unsigned int *report_len) { … } static int elan_i2c_get_report(struct i2c_client *client, u8 *report, unsigned int report_len) { … } const struct elan_transport_ops elan_i2c_ops = …;
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