e03d4196a3
Move common logic into a default routine in platform/power that other platforms can reuse to implement the general default shutdown logic. Add helper routines to print the cause. Refactor the platforms that had substantial halt logic to reuse the default implementation.
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* Copyright (c) 2008-2014 Travis Geiselbrecht
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*
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* Use of this source code is governed by a MIT-style
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* license that can be found in the LICENSE file or at
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* https://opensource.org/licenses/MIT
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*/
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#include <stdarg.h>
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#include <lk/reg.h>
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#include <kernel/thread.h>
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#include <dev/uart.h>
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#include <platform/debug.h>
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#include <platform/qemu-virt.h>
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#include <target/debugconfig.h>
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/* DEBUG_UART must be defined to 0 or 1 */
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#if defined(DEBUG_UART) && DEBUG_UART == 0
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#define DEBUG_UART_BASE UART0_BASE
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#elif defined(DEBUG_UART) && DEBUG_UART == 1
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#define DEBUG_UART_BASE UART1_BASE
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#else
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#error define DEBUG_UART to something valid
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#endif
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void platform_dputc(char c) {
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if (c == '\n')
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uart_putc(DEBUG_UART, '\r');
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uart_putc(DEBUG_UART, c);
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}
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int platform_dgetc(char *c, bool wait) {
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int ret = uart_getc(DEBUG_UART, wait);
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if (ret < 0)
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return ret;
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*c = ret;
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return 0;
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}
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void platform_pputc(char c) {
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if (c == '\n')
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uart_pputc(DEBUG_UART, '\r');
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uart_pputc(DEBUG_UART, c);
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}
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int platform_pgetc(char *c, bool wait) {
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int ret = uart_pgetc(DEBUG_UART);
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if (ret < 0)
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return ret;
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*c = ret;
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return 0;
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}
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