mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 00:21:06 +00:00
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
|
/*
|
||
|
|
* I2C Driver for Atmel ATSHA204 over I2C
|
||
|
|
*
|
||
|
|
* Copyright (C) 2014 Josh Datko, Cryptotronix, jbd@cryptotronix.com
|
||
|
|
* 2016 Tomas Hlavacek, CZ.NIC, tmshlvck@gmail.com
|
||
|
|
* 2017 Marek Behun, CZ.NIC, marek.behun@nic.cz
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
#ifndef _ATSHA204_I2C_H_
|
||
|
|
#define _ATSHA204_I2C_H_
|
||
|
|
|
||
|
|
enum atsha204a_zone
|
||
|
|
{
|
||
|
|
ATSHA204A_ZONE_CONFIG = 0,
|
||
|
|
ATSHA204A_ZONE_OTP = 1,
|
||
|
|
ATSHA204A_ZONE_DATA = 2,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum atsha204a_status
|
||
|
|
{
|
||
|
|
ATSHA204A_STATUS_SUCCESS = 0x00,
|
||
|
|
ATSHA204A_STATUS_MISCOMPARE = 0x01,
|
||
|
|
ATSHA204A_STATUS_PARSE_ERROR = 0x03,
|
||
|
|
ATSHA204A_STATUS_EXEC_ERROR = 0x0F,
|
||
|
|
ATSHA204A_STATUS_AFTER_WAKE = 0x11,
|
||
|
|
ATSHA204A_STATUS_CRC_ERROR = 0xFF,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum atsha204a_func
|
||
|
|
{
|
||
|
|
ATSHA204A_FUNC_RESET = 0x00,
|
||
|
|
ATSHA204A_FUNC_SLEEP = 0x01,
|
||
|
|
ATSHA204A_FUNC_IDLE = 0x02,
|
||
|
|
ATSHA204A_FUNC_COMMAND = 0x03,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum atsha204a_cmd
|
||
|
|
{
|
||
|
|
ATSHA204A_CMD_READ = 0x02,
|
||
|
|
ATSHA204A_CMD_RANDOM = 0x1B,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct atsha204a_resp
|
||
|
|
{
|
||
|
|
u8 length;
|
||
|
|
u8 code;
|
||
|
|
u8 data[82];
|
||
|
|
} __attribute__ ((packed));
|
||
|
|
|
||
|
|
struct atsha204a_req
|
||
|
|
{
|
||
|
|
u8 function;
|
||
|
|
u8 length;
|
||
|
|
u8 command;
|
||
|
|
u8 param1;
|
||
|
|
u16 param2;
|
||
|
|
u8 data[78];
|
||
|
|
} __attribute__ ((packed));
|
||
|
|
|
||
|
|
int atsha204a_wakeup(struct udevice *);
|
||
|
|
int atsha204a_idle(struct udevice *);
|
||
|
|
int atsha204a_sleep(struct udevice *);
|
||
|
|
int atsha204a_read(struct udevice *, enum atsha204a_zone, bool, u16, u8 *);
|
||
|
|
int atsha204a_get_random(struct udevice *, u8 *, size_t);
|
||
|
|
|
||
|
|
#endif /* _ATSHA204_I2C_H_ */
|