diff options
Diffstat (limited to 'drivers/crypto/atmel-ecc.h')
| -rw-r--r-- | drivers/crypto/atmel-ecc.h | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/drivers/crypto/atmel-ecc.h b/drivers/crypto/atmel-ecc.h deleted file mode 100644 index 643a3b947338..000000000000 --- a/drivers/crypto/atmel-ecc.h +++ /dev/null @@ -1,116 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (c) 2017, Microchip Technology Inc. - * Author: Tudor Ambarus <tudor.ambarus@microchip.com> - */ - -#ifndef __ATMEL_ECC_H__ -#define __ATMEL_ECC_H__ - -#define ATMEL_ECC_PRIORITY 300 - -#define COMMAND 0x03 /* packet function */ -#define SLEEP_TOKEN 0x01 -#define WAKE_TOKEN_MAX_SIZE 8 - -/* Definitions of Data and Command sizes */ -#define WORD_ADDR_SIZE 1 -#define COUNT_SIZE 1 -#define CRC_SIZE 2 -#define CMD_OVERHEAD_SIZE (COUNT_SIZE + CRC_SIZE) - -/* size in bytes of the n prime */ -#define ATMEL_ECC_NIST_P256_N_SIZE 32 -#define ATMEL_ECC_PUBKEY_SIZE (2 * ATMEL_ECC_NIST_P256_N_SIZE) - -#define STATUS_RSP_SIZE 4 -#define ECDH_RSP_SIZE (32 + CMD_OVERHEAD_SIZE) -#define GENKEY_RSP_SIZE (ATMEL_ECC_PUBKEY_SIZE + \ - CMD_OVERHEAD_SIZE) -#define READ_RSP_SIZE (4 + CMD_OVERHEAD_SIZE) -#define MAX_RSP_SIZE GENKEY_RSP_SIZE - -/** - * atmel_ecc_cmd - structure used for communicating with the device. - * @word_addr: indicates the function of the packet sent to the device. This - * byte should have a value of COMMAND for normal operation. - * @count : number of bytes to be transferred to (or from) the device. - * @opcode : the command code. - * @param1 : the first parameter; always present. - * @param2 : the second parameter; always present. - * @data : optional remaining input data. Includes a 2-byte CRC. - * @rxsize : size of the data received from i2c client. - * @msecs : command execution time in milliseconds - */ -struct atmel_ecc_cmd { - u8 word_addr; - u8 count; - u8 opcode; - u8 param1; - u16 param2; - u8 data[MAX_RSP_SIZE]; - u8 msecs; - u16 rxsize; -} __packed; - -/* Status/Error codes */ -#define STATUS_SIZE 0x04 -#define STATUS_NOERR 0x00 -#define STATUS_WAKE_SUCCESSFUL 0x11 - -static const struct { - u8 value; - const char *error_text; -} error_list[] = { - { 0x01, "CheckMac or Verify miscompare" }, - { 0x03, "Parse Error" }, - { 0x05, "ECC Fault" }, - { 0x0F, "Execution Error" }, - { 0xEE, "Watchdog about to expire" }, - { 0xFF, "CRC or other communication error" }, -}; - -/* Definitions for eeprom organization */ -#define CONFIG_ZONE 0 - -/* Definitions for Indexes common to all commands */ -#define RSP_DATA_IDX 1 /* buffer index of data in response */ -#define DATA_SLOT_2 2 /* used for ECDH private key */ - -/* Definitions for the device lock state */ -#define DEVICE_LOCK_ADDR 0x15 -#define LOCK_VALUE_IDX (RSP_DATA_IDX + 2) -#define LOCK_CONFIG_IDX (RSP_DATA_IDX + 3) - -/* - * Wake High delay to data communication (microseconds). SDA should be stable - * high for this entire duration. - */ -#define TWHI_MIN 1500 -#define TWHI_MAX 1550 - -/* Wake Low duration */ -#define TWLO_USEC 60 - -/* Command execution time (milliseconds) */ -#define MAX_EXEC_TIME_ECDH 58 -#define MAX_EXEC_TIME_GENKEY 115 -#define MAX_EXEC_TIME_READ 1 - -/* Command opcode */ -#define OPCODE_ECDH 0x43 -#define OPCODE_GENKEY 0x40 -#define OPCODE_READ 0x02 - -/* Definitions for the READ Command */ -#define READ_COUNT 7 - -/* Definitions for the GenKey Command */ -#define GENKEY_COUNT 7 -#define GENKEY_MODE_PRIVATE 0x04 - -/* Definitions for the ECDH Command */ -#define ECDH_COUNT 71 -#define ECDH_PREFIX_MODE 0x00 - -#endif /* __ATMEL_ECC_H__ */ |