37 lines
836 B
C
37 lines
836 B
C
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/* deshab/serial.h - COM1 串口日志
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*
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* 整合 desktop_app.h 的 da_sputc/swrite/slog，统一前缀为 dsb_。
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* 用于无内核 log API 可用的早期阶段（应用启动、驱动 init 前）。
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*/
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#ifndef DESHAB_SERIAL_H
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#define DESHAB_SERIAL_H
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#include "types.h"
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#include "portio.h"
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#define DSB_COM1 0x3F8
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static inline void dsb_sputc(char c) {
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for (unsigned i = 0; i < 100000; i++) {
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if (dsb_inb(DSB_COM1 + 5) & 0x20) break;
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}
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dsb_outb(DSB_COM1, (u8)c);
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}
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static inline void dsb_swrite(const char *s) {
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while (*s) {
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if (*s == '\n') dsb_sputc('\r');
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dsb_sputc(*s++);
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}
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}
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static inline void dsb_slog(const char *tag, const char *msg) {
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dsb_swrite("[");
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dsb_swrite(tag);
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dsb_swrite("] ");
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dsb_swrite(msg);
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dsb_swrite("\n");
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}
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#endif /* DESHAB_SERIAL_H */
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