1 files changed, 121 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..3c84deefa
--- /dev/null
+++ b/drivers/input/mouse/elan_i2c.h
@@ -0,0 +1,121 @@
+/* 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
+
+#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 */