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rt-thread/components/drivers/serial/device/serial-early-hvc.c
T
GuEe-GUI 9a6d515e27
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[dm][serial] add new serial driver for DM
1. 8250 serila family (OFW, PCI, DWC, early)
2. Virtual serial (by graphic and input)
3. HVC early serial
4. ARM PL011 serial

Signed-off-by: GuEe-GUI <2991707448@qq.com>
2025-12-16 12:41:02 +08:00

35 lines
690 B
C

/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-01-30 GuEe-GUI first version
*/
#include <rtdevice.h>
#include <hypercall.h>
static void hvc_early_console_putchar(void *data, char c)
{
rt_hv_console(c);
}
static rt_err_t hvc_early_setup(struct rt_fdt_earlycon *con, const char *options)
{
rt_err_t err;
rt_uint32_t version;
if ((err = rt_hv_version(&version)))
{
return err;
}
con->console_putc = hvc_early_console_putchar;
return err;
}
RT_FDT_EARLYCON_EXPORT(hvc, "hvc", "vmrt-thread,hvc-console", hvc_early_setup);