diff options
Diffstat (limited to 'board/cr50/ec_comm.h')
| -rw-r--r-- | board/cr50/ec_comm.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/board/cr50/ec_comm.h b/board/cr50/ec_comm.h new file mode 100644 index 0000000000..37732e69c2 --- /dev/null +++ b/board/cr50/ec_comm.h @@ -0,0 +1,33 @@ +/* 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); +/* 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); +#endif /* __CROS_EC_COMM_H */ |