#ifndef TINIBIOS_H

#define TINIBIOS_H

#include <ds80c390.h>
#include <time.h>

void Serial0Init (unsigned long baud, unsigned char buffered);
char Serial0GetChar(void);
void Serial0PutChar(char);
char Serial0CharArrived(void);
void Serial0Baud(unsigned long baud);
void Serial0SendBreak(void);
void Serial0Flush(void);

void Serial0SwitchToBuffered(void); /* ds400 only. */

void Serial1Init (unsigned long baud, unsigned char buffered);
char Serial1GetChar(void);
void Serial1PutChar(char);
char Serial1CharArrived(void);
void Serial1Baud(unsigned long baud);
void Serial1SendBreak(void);
void Serial1Flush(void);

unsigned long ClockTicks();
void ClockMilliSecondsDelay(unsigned long ms);
void ClockMicroSecondsDelay(unsigned int us);

#define SERIAL_0_BAUD 115200L
#define SERIAL_1_BAUD 9600L

/* these need to be binary numbers */
#define SERIAL_0_RECEIVE_BUFFER_SIZE 1024
#define SERIAL_1_RECEIVE_BUFFER_SIZE 64

/* I know someone is fooling with the crystals */
#if defined(SDCC_ds400)
# define OSCILLATOR 14745600L
#else
# define OSCILLATOR 18432000L
#endif

/* Set the cpu speed in clocks per machine cycle, valid values are:
   1024: Divide-by-1024 (power management) mode (screws ALL timers and serial)
      4: Standard 8051 divide-by-4 mode
      2: Use 2x xtal multiplier
      1: Use 4x xtal multiplier (Don't do this with a TINI at 18.432MHz)
*/
#define CPU_SPEED 2
void CpuSpeed(unsigned int speed);

/* The MOVX stretch cycles, see datasheet */
#define CPU_MOVX_STRETCH 0x01

/* from rtc390.c */
#define HAVE_RTC
unsigned char RtcRead(struct tm *rtcDate);
void RtcWrite(struct tm *rtcDate);

/* from lcd390.c */
extern void LcdInit(void);
extern void LcdOn(void);
extern void LcdOff(void);
extern void LcdClear(void);
extern void LcdHome(void);
extern void LcdGoto(unsigned int collumnRow);
extern void LcdPutChar(char c);
extern void LcdPutString(char *string);
extern void LcdLPutString(unsigned int collumnRow, char *string);
extern void LcdPrintf(const char *format, ...) __reentrant;
extern void LcdLPrintf(unsigned int collumnRow, const char *format, ...) __reentrant;

/* from i2c390.c */
#define I2C_BUFSIZE 128
extern char I2CReset(void);
extern char I2CStart(void);
extern char I2CStop(void);
extern char I2CSendStop(char addr, char count,
			char send_stop);
extern char I2CReceive(char addr, char count);
extern char I2CSendReceive(char addr, char tx_count,
			   char rx_count);
/*extern char I2CByteOut(char);*/
/*extern void I2CDumpError(char);*/

/* global transfer buffers */
extern char i2cTransmitBuffer[I2C_BUFSIZE];
extern char i2cReceiveBuffer[I2C_BUFSIZE];

/* Macro for normal send transfer ending with a stop condition */
#define I2CSend(addr, count)   I2CSendStop(addr, count, 1)


/* internal functions used by tinibios.c */
unsigned char _sdcc_external_startup(void);
void Serial0IrqHandler (void) __interrupt 4;
void Serial1IrqHandler (void) __interrupt 7;

#if !defined(SDCC_ds400)
void ClockInit();
void ClockIrqHandler (void) __interrupt 1 __naked;
#endif

#if defined(SDCC_ds400)
/* functions for dealing with the ds400 ROM firmware. */

/* A wrapper which calls rom_init allocating all available RAM in CE0
   to the heap, sets the serial port to SERIAL_0_BAUD, sets up the
   millisecond timer, and diddles the clock multiplier. */

/* Values for the romInit "speed" parameter. */
#define SPEED_1X	0 /* no clock multiplier, normal speed. */
#define SPEED_2X	1 /* 2x clock multiplier. */
#define SPEED_4X	2 /* 4x clock, DOESN'T WORK ON TINIm400! */

unsigned char romInit(unsigned char noisy,
		      char speed);

/* Install an interrupt handler. */
void installInterrupt(void (*isrPtr)(void), unsigned char offset);
#endif


#endif /* TINIBIOS_H */
