f308299ca2
Add GDBSTUB_TRACE config option to extend GDB backend debug logging for remote commands received and to debug the GDB stub itself. Signed-off-by: Dmitrii Golovanov <dmitrii.golovanov@intel.com>
57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
/*
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* Copyright (c) 2020 Intel Corporation.
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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/sys/__assert.h>
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static const struct device *uart_dev;
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int z_gdb_backend_init(void)
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{
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int ret = 0;
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static const struct uart_config uart_cfg = {
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.baudrate = 115200,
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.parity = UART_CFG_PARITY_NONE,
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.stop_bits = UART_CFG_STOP_BITS_1,
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.data_bits = UART_CFG_DATA_BITS_8,
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.flow_ctrl = UART_CFG_FLOW_CTRL_NONE
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};
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#ifdef CONFIG_GDBSTUB_TRACE
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printk("gdbstub_serial:%s enter\n", __func__);
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#endif
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if (uart_dev == NULL) {
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uart_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_gdbstub_uart));
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__ASSERT(device_is_ready(uart_dev), "uart device is not ready");
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ret = uart_configure(uart_dev, &uart_cfg);
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__ASSERT(ret == 0, "Could not configure uart device");
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}
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#ifdef CONFIG_GDBSTUB_TRACE
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printk("gdbstub_serial:%s exit\n", __func__);
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#endif
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return ret;
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}
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void z_gdb_putchar(unsigned char ch)
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{
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uart_poll_out(uart_dev, ch);
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}
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unsigned char z_gdb_getchar(void)
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{
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unsigned char ch;
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while (uart_poll_in(uart_dev, &ch) < 0) {
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}
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return ch;
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}
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