mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-04-29 04:04:05 +00:00
29dbd1084d
-- update 'vuart' field in 'struct vm' from pointer to instance -- replace MACRO with inline function for vm_vuart, and move it to vm.h -- change vuart_init to void type -- rename struct vuart -->struct acrn_vuart Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com> Reviewed-by: Anthony Xu <anthony.xu@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
66 lines
1.2 KiB
C
66 lines
1.2 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <hypervisor.h>
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#include "uart16550.h"
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struct hv_timer console_timer;
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#define CONSOLE_KICK_TIMER_TIMEOUT 40UL /* timeout is 40ms*/
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void console_init(void)
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{
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uart16550_init();
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}
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void console_putc(const char *ch)
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{
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(void)uart16550_puts(ch, 1U);
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}
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int console_write(const char *s, size_t len)
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{
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return uart16550_puts(s, len);
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}
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char console_getc(void)
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{
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return uart16550_getc();
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}
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static void console_timer_callback(__unused void *data)
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{
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struct acrn_vuart *vu;
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/* Kick HV-Shell and Uart-Console tasks */
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vu = vuart_console_active();
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if (vu != NULL) {
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/* serial Console Rx operation */
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vuart_console_rx_chars(vu);
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/* serial Console Tx operation */
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vuart_console_tx_chars(vu);
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} else {
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shell_kick();
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}
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}
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void console_setup_timer(void)
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{
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uint64_t period_in_cycle, fire_tsc;
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period_in_cycle = CYCLES_PER_MS * CONSOLE_KICK_TIMER_TIMEOUT;
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fire_tsc = rdtsc() + period_in_cycle;
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initialize_timer(&console_timer,
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console_timer_callback, NULL,
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fire_tsc, TICK_MODE_PERIODIC, period_in_cycle);
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/* Start an periodic timer */
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if (add_timer(&console_timer) != 0) {
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pr_err("Failed to add console kick timer");
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}
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}
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