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46 lines
1.0 KiB
46 lines
1.0 KiB
/* |
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* Copyright (c) 2017 Linaro Limited. |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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#include <zephyr/kernel.h> |
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#include <zephyr/drivers/uart.h> |
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#include <zephyr/drivers/console/console.h> |
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#include <zephyr/drivers/console/uart_console.h> |
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/* While app processes one input line, Zephyr will have another line |
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* buffer to accumulate more console input. |
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*/ |
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static struct console_input line_bufs[2]; |
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static K_FIFO_DEFINE(free_queue); |
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static K_FIFO_DEFINE(used_queue); |
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char *console_getline(void) |
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{ |
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static struct console_input *cmd; |
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/* Recycle cmd buffer returned previous time */ |
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if (cmd != NULL) { |
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k_fifo_put(&free_queue, cmd); |
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} |
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cmd = k_fifo_get(&used_queue, K_FOREVER); |
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return cmd->line; |
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} |
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void console_getline_init(void) |
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{ |
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int i; |
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for (i = 0; i < ARRAY_SIZE(line_bufs); i++) { |
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k_fifo_put(&free_queue, &line_bufs[i]); |
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} |
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/* Zephyr UART handler takes an empty buffer from free_queue, |
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* stores UART input in it until EOL, and then puts it into |
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* used_queue. |
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*/ |
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uart_register_input(&free_queue, &used_queue, NULL); |
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}
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