misc/test_vm/include/geekos/serial.h

   1 #ifndef SERIAL_H
   2 #define SERIAL_H
   3
   4 #include <geekos/irq.h>
   5 #include <geekos/string.h>
   6 #include <geekos/io.h>
   7 #include <geekos/screen.h>
   8
   9 #define COM1_IRQ 4
  10 #define DEFAULT_SERIAL_ADDR 0x3F8
  11
  12
  13 #ifndef SERIAL_PRINT
  14 #define SERIAL_PRINT              1
  15 #endif
  16 #ifndef SERIAL_PRINT_DEBUG
  17 #define SERIAL_PRINT_DEBUG        1
  18 #endif
  19 #ifndef SERIAL_PRINT_DEBUG_LEVEL
  20 #define SERIAL_PRINT_DEBUG_LEVEL  10
  21 #endif
  22
  23 #define SERIAL_PRINT_MAXBUF       256
  24
  25
  26 #if SERIAL_PRINT
  27 #define SerialPrint(format, args...)                             \
  28 do {                                                             \
  29   char buf[SERIAL_PRINT_MAXBUF];                                                 \
  30   snprintf( buf, SERIAL_PRINT_MAXBUF, format, ## args ) ;                        \
  31   SerialPutLineN(buf, SERIAL_PRINT_MAXBUF);                                      \
  32 } while (0)
  33 #else
  34 #define SerialPrint(format, args...) do {} while (0)
  35 #endif
  36
  37
  38 #define PrintBoth(format, args...) \
  39 do {  \
  40   Print(format, ## args); \
  41   SerialPrint(format, ##args); \
  42  } while (0)
  43
  44
  45 #if SERIAL_PRINT_DEBUG
  46 #define SerialPrintLevel(level, format, args...)                 \
  47 do {                                                             \
  48   char buf[SERIAL_PRINT_MAXBUF];                                                 \
  49   if (level >= SERIAL_PRINT_DEBUG_LEVEL  ) {                                     \
  50     snprintf( buf, SERIAL_PRINT_MAXBUF, format, ## args ) ;             \
  51     SerialPutLineN(buf, SERIAL_PRINT_MAXBUF);                           \
  52   }                                                                     \
  53 } while (0)
  54 #else
  55 #define SerialPrintLevel(level, format, args...) do {} while (0)
  56 #endif
  57
  58
  59 void SerialPutLine(char * line);
  60 void SerialPutLineN(char * line, int len);
  61
  62
  63 void SerialPrintHex(unsigned char x);
  64 void SerialMemDump(unsigned char *start, int n);
  65
  66 void InitSerial();
  67 void InitSerialAddr(unsigned short io_addr);
  68
  69 #endif