1 files changed, 0 insertions, 128 deletions
diff --git a/zephyr/shim/src/console_buffer.c b/zephyr/shim/src/console_buffer.c
deleted file mode 100644
index 427ae47768..0000000000
--- a/zephyr/shim/src/console_buffer.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Copyright 2021 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.
- */
-
-#include <kernel.h>
-#include <zephyr.h>
-
-#include "common.h"
-#include "console.h"
-#include "ec_commands.h"
-
-static char console_buf[CONFIG_PLATFORM_EC_HOSTCMD_CONSOLE_BUF_SIZE];
-static uint32_t previous_snapshot_idx;
-static uint32_t current_snapshot_idx;
-static uint32_t tail_idx;
-
-static inline uint32_t next_idx(uint32_t cur_idx)
-{
-	return (cur_idx + 1) % ARRAY_SIZE(console_buf);
-}
-
-K_MUTEX_DEFINE(console_write_lock);
-
-void console_buf_notify_chars(const char *s, size_t len)
-{
-	/*
-	 * This is just notifying of console characters for debugging
-	 * output, so if we are unable to lock the mutex immediately,
-	 * then just drop the string.
-	 */
-	if (k_mutex_lock(&console_write_lock, K_NO_WAIT))
-		return;
-	/* We got the mutex. */
-	while (len--) {
-		/* Don't copy null byte into buffer */
-		if (!(*s))
-			continue;
-
-		uint32_t new_tail = next_idx(tail_idx);
-
-		/* Check if we are starting to overwrite our snapshot
-		 * heads
-		 */
-		if (new_tail == previous_snapshot_idx)
-			previous_snapshot_idx =
-				next_idx(previous_snapshot_idx);
-		if (new_tail == current_snapshot_idx)
-			current_snapshot_idx =
-				next_idx(current_snapshot_idx);
-
-		console_buf[new_tail] = *s++;
-		tail_idx = new_tail;
-	}
-	k_mutex_unlock(&console_write_lock);
-}
-
-enum ec_status uart_console_read_buffer_init(void)
-{
-	if (k_mutex_lock(&console_write_lock, K_MSEC(100)))
-		/* Failed to acquire console buffer mutex */
-		return EC_RES_TIMEOUT;
-
-	previous_snapshot_idx = current_snapshot_idx;
-	current_snapshot_idx = tail_idx;
-
-	k_mutex_unlock(&console_write_lock);
-
-	return EC_RES_SUCCESS;
-}
-
-int uart_console_read_buffer(uint8_t type, char *dest, uint16_t dest_size,
-			     uint16_t *write_count_out)
-{
-	uint32_t *head;
-	uint16_t write_count = 0;
-
-	switch (type) {
-	case CONSOLE_READ_NEXT:
-		/* Start from beginning of latest snapshot */
-		head = &current_snapshot_idx;
-		break;
-	case CONSOLE_READ_RECENT:
-		/* Start from end of previous snapshot */
-		head = &previous_snapshot_idx;
-		break;
-	default:
-		return EC_RES_INVALID_PARAM;
-	}
-
-	/* We need to make sure we have room for at least the null byte */
-	if (dest_size == 0)
-		return EC_RES_INVALID_PARAM;
-
-	if (k_mutex_lock(&console_write_lock, K_MSEC(100)))
-		/* Failed to acquire console buffer mutex */
-		return EC_RES_TIMEOUT;
-
-	if (*head == tail_idx) {
-		/* No new data, return empty response */
-		k_mutex_unlock(&console_write_lock);
-		return EC_RES_SUCCESS;
-	}
-
-	do {
-		if (write_count >= dest_size - 1)
-			/* Buffer is full, minus the space for a null byte */
-			break;
-
-		dest[write_count] = console_buf[*head];
-		write_count++;
-		*head = next_idx(*head);
-	} while (*head != tail_idx);
-
-	dest[write_count] = '\0';
-	write_count++;
-
-	*write_count_out = write_count;
-	k_mutex_unlock(&console_write_lock);
-
-	return EC_RES_SUCCESS;
-}
-
-/* ECOS uart buffer, putc is blocking instead. */
-int uart_buffer_full(void)
-{
-	return false;
-}