linux-imx

/*

 * Cypress APA trackpad with I2C interface

 *

 * Author: Dudley Du <dudl@cypress.com>

 *

 * Copyright (C) 2014-2015 Cypress Semiconductor, Inc.

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file COPYING in the main directory of this archive for

 * more details.

 */

​

#include <linux/delay.h>

#include <linux/i2c.h>

#include <linux/input.h>

#include <linux/input/mt.h>

#include <linux/mutex.h>

#include <linux/completion.h>

#include <linux/slab.h>

#include <asm/unaligned.h>

#include <linux/crc-itu-t.h>

#include <linux/pm_runtime.h>

#include "cyapa.h"

​

​

/* Macro of TSG firmware image */

#define CYAPA_TSG_FLASH_MAP_BLOCK_SIZE      0x80

#define CYAPA_TSG_IMG_FW_HDR_SIZE           13

#define CYAPA_TSG_FW_ROW_SIZE               (CYAPA_TSG_FLASH_MAP_BLOCK_SIZE)

#define CYAPA_TSG_IMG_START_ROW_NUM         0x002e

#define CYAPA_TSG_IMG_END_ROW_NUM           0x01fe

#define CYAPA_TSG_IMG_APP_INTEGRITY_ROW_NUM 0x01ff

#define CYAPA_TSG_IMG_MAX_RECORDS           (CYAPA_TSG_IMG_END_ROW_NUM - \

                CYAPA_TSG_IMG_START_ROW_NUM + 1 + 1)

#define CYAPA_TSG_IMG_READ_SIZE             (CYAPA_TSG_FLASH_MAP_BLOCK_SIZE / 2)

#define CYAPA_TSG_START_OF_APPLICATION      0x1700

#define CYAPA_TSG_APP_INTEGRITY_SIZE        60

#define CYAPA_TSG_FLASH_MAP_METADATA_SIZE   60

#define CYAPA_TSG_BL_KEY_SIZE               8

​

#define CYAPA_TSG_MAX_CMD_SIZE              256

​

/* Macro of PIP interface */

#define PIP_BL_INITIATE_RESP_LEN            11

#define PIP_BL_FAIL_EXIT_RESP_LEN           11

#define PIP_BL_FAIL_EXIT_STATUS_CODE        0x0c

#define PIP_BL_VERIFY_INTEGRITY_RESP_LEN    12

#define PIP_BL_INTEGRITY_CHEKC_PASS         0x00

#define PIP_BL_BLOCK_WRITE_RESP_LEN         11

​

#define PIP_TOUCH_REPORT_ID         0x01

#define PIP_BTN_REPORT_ID           0x03

#define PIP_WAKEUP_EVENT_REPORT_ID  0x04

#define PIP_PUSH_BTN_REPORT_ID      0x06

#define GEN5_OLD_PUSH_BTN_REPORT_ID 0x05  /* Special for old Gen5 TP. */

#define PIP_PROXIMITY_REPORT_ID     0x07

​

#define PIP_PROXIMITY_REPORT_SIZE   6

#define PIP_PROXIMITY_DISTANCE_OFFSET   0x05

#define PIP_PROXIMITY_DISTANCE_MASK 0x01

​

#define PIP_TOUCH_REPORT_HEAD_SIZE     7

#define PIP_TOUCH_REPORT_MAX_SIZE      127

#define PIP_BTN_REPORT_HEAD_SIZE       6

#define PIP_BTN_REPORT_MAX_SIZE        14

#define PIP_WAKEUP_EVENT_SIZE          4

​

#define PIP_NUMBER_OF_TOUCH_OFFSET  5

#define PIP_NUMBER_OF_TOUCH_MASK    0x1f

#define PIP_BUTTONS_OFFSET          5

#define PIP_BUTTONS_MASK            0x0f

#define PIP_GET_EVENT_ID(reg)       (((reg) >> 5) & 0x03)

#define PIP_GET_TOUCH_ID(reg)       ((reg) & 0x1f)

#define PIP_TOUCH_TYPE_FINGER       0x00

#define PIP_TOUCH_TYPE_PROXIMITY    0x01

#define PIP_TOUCH_TYPE_HOVER        0x02

#define PIP_GET_TOUCH_TYPE(reg)     ((reg) & 0x07)

​

#define RECORD_EVENT_NONE        0

#define RECORD_EVENT_TOUCHDOWN   1

#define RECORD_EVENT_DISPLACE    2

#define RECORD_EVENT_LIFTOFF     3

​

#define PIP_SENSING_MODE_MUTUAL_CAP_FINE   0x00

#define PIP_SENSING_MODE_SELF_CAP          0x02

​

#define PIP_SET_PROXIMITY   0x49

​

/* Macro of Gen5 */

#define GEN5_BL_MAX_OUTPUT_LENGTH     0x0100

#define GEN5_APP_MAX_OUTPUT_LENGTH    0x00fe

​