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https://github.com/projectacrn/acrn-hypervisor.git
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ae3004028b
The current hierarchy : CONSOLE --> SERIAL -->UART DRIVER This patch remove SERIAL layer, that is console will call UART driver directly, change it to: CONSOLE --> UART DRIVER Remove some related data structures and registration and callback. Cleanup vuart.c Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
72 lines
1.3 KiB
C
72 lines
1.3 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 40 /* 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, 1);
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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_handler(void)
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{
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struct vuart *vu;
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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_session();
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}
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}
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static int console_timer_callback(__unused void *data)
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{
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/* Kick HV-Shell and Uart-Console tasks */
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console_handler();
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return 0;
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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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