kernel_xiaomi_lancelot/drivers/nfc/pn553.h

/*
 * Copyright (C) 2010 Trusted Logic S.A.
 * Copyright (C) 2021 XiaoMi, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */
/******************************************************************************
 *
 *  The original Work has been changed by NXP Semiconductors.
 *
 *  Copyright (C) 2013-2019 NXP Semiconductors
 *   *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 *
 ******************************************************************************/
#ifndef _PN553_H_
#define _PN553_H_
#define PN544_MAGIC 0xE9

/*
 * PN544 power control via ioctl
 * PN544_SET_PWR(0): power off
 * PN544_SET_PWR(1): power on
 * PN544_SET_PWR(2): reset and power on with firmware download enabled
 */
#define PN544_SET_PWR    _IOW(PN544_MAGIC, 0x01, unsigned int)

/*
 * SPI Request NFCC to enable p61 power, only in param
 * Only for SPI
 * level 1 = Enable power
 * level 0 = Disable power
 */
#define P61_SET_SPI_PWR    _IOW(PN544_MAGIC, 0x02, unsigned int)

/* SPI or DWP can call this ioctl to get the current
 * power state of P61
 *
*/
#define P61_GET_PWR_STATUS    _IOR(PN544_MAGIC, 0x03, unsigned int)

/* DWP side this ioctl will be called
 * level 1 = Wired access is enabled/ongoing
 * level 0 = Wired access is disalbed/stopped
*/
#define P61_SET_WIRED_ACCESS _IOW(PN544_MAGIC, 0x04, unsigned int)

/*
  NFC Init will call the ioctl to register the PID with the i2c driver
*/
#define P544_SET_NFC_SERVICE_PID _IOW(PN544_MAGIC, 0x05, unsigned int)

/*
  NFC and SPI will call the ioctl to get the i2c/spi bus access
*/
#define P544_GET_ESE_ACCESS _IOW(PN544_MAGIC, 0x06, unsigned int)
/*
  NFC and SPI will call the ioctl to update the power scheme
*/
#define P544_SET_POWER_SCHEME _IOW(PN544_MAGIC, 0x07, unsigned int)

/*
  NFC will call the ioctl to release the svdd protection
*/
#define P544_REL_SVDD_WAIT _IOW(PN544_MAGIC, 0x08, unsigned int)

/* SPI or DWP can call this ioctl to get the current
 * power state of P61
 *
*/
#define PN544_SET_DWNLD_STATUS    _IOW(PN544_MAGIC, 0x09, unsigned int)
/*
  NFC will call the ioctl to release the dwp on/off protection
*/
#define P544_REL_DWPONOFF_WAIT _IOW(PN544_MAGIC, 0x0A, unsigned int)

/*
  NFC will call the ioctl to start Secure Timer
*/

#define P544_SECURE_TIMER_SESSION _IOW(PN544_MAGIC, 0x0B, unsigned int)

#define MAX_ESE_ACCESS_TIME_OUT_MS 200	/*100 milliseconds */

#define NFCC_INITIAL_CORE_RESET_NTF	_IOW(PN544_MAGIC, 0x10, unsigned int)

/*
  NFC_ON: Driver is being used by the NFC service
*/
#define P544_FLAG_NFC_ON         0x01
/*
  FW_DNLD: NFC_ON and FW download is going on
*/
#define P544_FLAG_FW_DNLD        0x02
/*
  COLD_RESET: eSE cold reset is triggered by driver
*/
#define P544_FLAG_ESE_COLD_RESET_FROM_DRIVER        0x04

typedef enum p61_access_state {
	P61_STATE_INVALID = 0x0000,
	P61_STATE_IDLE = 0x0100,	/* p61 is free to use */
	P61_STATE_WIRED = 0x0200,	/* p61 is being accessed by DWP (NFCC) */
	P61_STATE_SPI = 0x0400,	/* P61 is being accessed by SPI */
	P61_STATE_DWNLD = 0x0800,	/* NFCC fw download is in progress */
	P61_STATE_SPI_PRIO = 0x1000,	/*Start of p61 access by SPI on priority */
	P61_STATE_SPI_PRIO_END = 0x2000,	/*End of p61 access by SPI on priority */
	P61_STATE_SPI_END = 0x4000,
	P61_STATE_JCP_DWNLD = 0x8000,	/* JCOP downlad in progress */
	P61_STATE_SECURE_MODE = 0x100000,	/* secure mode state */
	P61_STATE_SPI_SVDD_SYNC_START = 0x0001,	/*ESE_VDD Low req by SPI */
	P61_STATE_SPI_SVDD_SYNC_END = 0x0002,	/*ESE_VDD is Low by SPI */
	P61_STATE_DWP_SVDD_SYNC_START = 0x0004,	/*ESE_VDD  Low req by Nfc */
	P61_STATE_DWP_SVDD_SYNC_END = 0x0008	/*ESE_VDD is Low by Nfc */
} p61_access_state_t;

typedef enum chip_type_pwr_scheme {
	PN67T_PWR_SCHEME = 0x01,
	PN80T_LEGACY_PWR_SCHEME,
	PN80T_EXT_PMU_SCHEME,
} chip_pwr_scheme_t;

typedef enum jcop_dwnld_state {
	JCP_DWNLD_IDLE = P61_STATE_JCP_DWNLD,	/* jcop dwnld is ongoing */
	JCP_DWNLD_INIT = 0x8010,	/* jcop dwonload init state */
	JCP_DWNLD_START = 0x8020,	/* download started */
	JCP_SPI_DWNLD_COMPLETE = 0x8040,	/* jcop download complete in spi interface */
	JCP_DWP_DWNLD_COMPLETE = 0x8080,	/* jcop download complete */
} jcop_dwnld_state_t;

struct pn544_i2c_platform_data {
	unsigned int irq_gpio;
	unsigned int ven_gpio;
	unsigned int firm_gpio;
	unsigned int iso_rst_gpio;	/* gpio used for ISO hard reset P73 */
};

struct hw_type_info {
	/*
	 * Response of get_version_cmd will be stored in data
	 * byte structure :
	 * byte 0-1     : Header
	 * byte 2       : Status
	 * byte 3       : Hardware Version
	 * byte 4       : ROM code
	 * byte 5       : 0x00 constant
	 * byte 6-7     : Protected data version
	 * byte 8-9     : Trim data version
	 * byte 10-11   : FW version
	 * byte 12-13   : CRC
	 * */
	char data[20];
	int len;
};
#endif