diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/config.h | 5 | ||||
| -rw-r--r-- | include/ec_comm.h | 45 |
2 files changed, 50 insertions, 0 deletions
diff --git a/include/config.h b/include/config.h index add8fcfa0e..bc51beb4a6 100644 --- a/include/config.h +++ b/include/config.h @@ -1411,6 +1411,11 @@ /* Enable verbose output to UART console and extra timestamp print precision. */ #define CONFIG_CONSOLE_VERBOSE +/* + * Enable EC-CR50 communication (a.k.a. EC-EFS2). This is for CR50 config only. + */ +#undef CONFIG_EC_EFS_SUPPORT + /*****************************************************************************/ /* Support for EC-EC communication */ diff --git a/include/ec_comm.h b/include/ec_comm.h new file mode 100644 index 0000000000..263d311e63 --- /dev/null +++ b/include/ec_comm.h @@ -0,0 +1,45 @@ +/* Copyright 2020 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ +#ifndef __CROS_EC_COMM_H +#define __CROS_EC_COMM_H +#include <stdint.h> +#include "common.h" +/* GPIO Interrupt handler for GPIO_EC_PACKET_MODE_EN rising edge */ +void ec_comm_packet_mode_en(enum gpio_signal unsed); +/* GPIO Interrupt handler for GPIO_EC_PACKET_MODE_DIS falling edge */ +void ec_comm_packet_mode_dis(enum gpio_signal unsed); +/* + * Return True if the given UART is in packet mode, in which EC-CR50 + * communication is on-going. + */ +int ec_comm_is_uart_in_packet_mode(int uart); +/* + * Try to process the given char as a EC-CR50 communication packet. + * If EC-CR50 communication is broken or uninitiated yet, then + * it does not process it. + * + * @return 1 if the given char was detected and processed as a part of packet. + * 0 otherwise. + */ +int ec_comm_process_packet(uint8_t ch); +/* + * Block or unblock EC-CR50 communication. + * @param block non-zero value blocks EC-CR50 communication. + * Zero value unblocks it. + */ +void ec_comm_block(int block); +/* Reset EC EFS context */ +void ec_efs_reset(void); +/* Set EC-EFS boot_mode */ +uint16_t ec_efs_set_boot_mode(const char *data, const uint8_t size); +/* Verify the given hash data against the EC-FW hash from kernel secdata */ +uint16_t ec_efs_verify_hash(const char *hash_data, const uint8_t size); + +/* Re-load EC Hash code from TPM Kernel Secdata */ +void ec_efs_refresh(void); +/* print EC-EFS status */ +void ec_efs_print_status(void); + +#endif /* __CROS_EC_COMM_H */ |