move ec_comm implementation to common directory

This patch moves ec_comm.c and ec_efs.c from board/cr50 to common/,
so that they can be shared with other board configuration (like host).
This is to build unittest for those files.

BUG=none
BRANCH=cr50
TEST=make buildall -j

Signed-off-by: Namyoon Woo <namyoon@chromium.org>
Change-Id: I67ac313054ebe4604848a176f0a42e3483957e74
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2094076
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>

1 files changed, 45 insertions, 0 deletions

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 */