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