* lib.c
*/
#include <acess.h>
-#include <threads.h>
+#include <threads_int.h>
#define TRACE_LOCKS 0
+#define DEBUG_TO_E9 1
+#define DEBUG_TO_SERIAL 1
+#define SERIAL_PORT 0x3F8
+#define GDB_SERIAL_PORT 0x2F8
+
+// === IMPRORTS ===
#if TRACE_LOCKS
extern struct sShortSpinlock glDebug_Lock;
#endif
-
-// === IMPRORTS ===
extern int GetCPUNum(void);
// === PROTOTYPES ==
Uint64 __udivdi3(Uint64 Num, Uint64 Den);
Uint64 __umoddi3(Uint64 Num, Uint64 Den);
+// === GLOBALS ===
+ int gbDebug_SerialSetup = 0;
+ int gbGDB_SerialSetup = 0;
+
// === CODE ===
/**
* \brief Determine if a short spinlock is locked
#endif
}
+// === DEBUG IO ===
+#if USE_GDB_STUB
+int putDebugChar(char ch)
+{
+ if(!gbGDB_SerialSetup) {
+ outb(GDB_SERIAL_PORT + 1, 0x00); // Disable all interrupts
+ outb(GDB_SERIAL_PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
+ outb(GDB_SERIAL_PORT + 0, 0x0C); // Set divisor to 12 (lo byte) 9600 baud
+ outb(GDB_SERIAL_PORT + 1, 0x00); // (base is (hi byte)
+ outb(GDB_SERIAL_PORT + 3, 0x03); // 8 bits, no parity, one stop bit (8N1)
+ outb(GDB_SERIAL_PORT + 2, 0xC7); // Enable FIFO with 14-byte threshold and clear it
+ outb(GDB_SERIAL_PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
+ gbDebug_SerialSetup = 1;
+ }
+ while( (inb(GDB_SERIAL_PORT + 5) & 0x20) == 0 );
+ outb(GDB_SERIAL_PORT, ch);
+ return 0;
+}
+int getDebugChar(void)
+{
+ if(!gbGDB_SerialSetup) {
+ outb(GDB_SERIAL_PORT + 1, 0x00); // Disable all interrupts
+ outb(GDB_SERIAL_PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
+ outb(GDB_SERIAL_PORT + 0, 0x0C); // Set divisor to 12 (lo byte) 9600 baud
+ outb(GDB_SERIAL_PORT + 1, 0x00); // (hi byte)
+ outb(GDB_SERIAL_PORT + 3, 0x03); // 8 bits, no parity, one stop bit
+ outb(GDB_SERIAL_PORT + 2, 0xC7); // Enable FIFO with 14-byte threshold and clear it
+ outb(GDB_SERIAL_PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
+ gbDebug_SerialSetup = 1;
+ }
+ while( (inb(GDB_SERIAL_PORT + 5) & 1) == 0) ;
+ return inb(GDB_SERIAL_PORT);
+}
+#endif /* USE_GDB_STUB */
+
+void Debug_PutCharDebug(char ch)
+{
+ #if DEBUG_TO_E9
+ __asm__ __volatile__ ( "outb %%al, $0xe9" :: "a"(((Uint8)ch)) );
+ #endif
+
+ #if DEBUG_TO_SERIAL
+ if(!gbDebug_SerialSetup) {
+ outb(SERIAL_PORT + 1, 0x00); // Disable all interrupts
+ outb(SERIAL_PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
+ outb(SERIAL_PORT + 0, 0x0C); // Set divisor to 12 (lo byte) 9600 baud
+ outb(SERIAL_PORT + 1, 0x00); // (hi byte)
+ outb(SERIAL_PORT + 3, 0x03); // 8 bits, no parity, one stop bit
+ outb(SERIAL_PORT + 2, 0xC7); // Enable FIFO with 14-byte threshold and clear it
+ outb(SERIAL_PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
+ gbDebug_SerialSetup = 1;
+ }
+ while( (inb(SERIAL_PORT + 5) & 0x20) == 0 );
+ outb(SERIAL_PORT, ch);
+ #endif
+}
+
+void Debug_PutStringDebug(const char *String)
+{
+ while(*String)
+ Debug_PutCharDebug(*String++);
+}
+
// === IO Commands ===
void outb(Uint16 Port, Uint8 Data)
{