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Diffstat (limited to '')
| -rw-r--r-- | drivers/input/mouse/elan_i2c.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/drivers/input/mouse/elan_i2c.h b/drivers/input/mouse/elan_i2c.h new file mode 100644 index 000000000..e12da5b02 --- /dev/null +++ b/drivers/input/mouse/elan_i2c.h @@ -0,0 +1,115 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Elan I2C/SMBus Touchpad driver + * + * Copyright (c) 2013 ELAN Microelectronics Corp. + * + * Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw> + * + * 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 + +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_baseliune, 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 */ |