#ifndef _VXCARD_H_
#define _VXCARD_H_

#define  WORD  unsigned int
#define  DWORD unsigned long

/* Register Offset */
#define VXC_RESET             0x0
#define VXC_AUX_CONTROL       0x2
#define VXC_AUX_DATA          0x3
#define VXC_AUX_STATUS        0x7

#define VXC_INT_MASK          0x5
#define VXC_INT_POLARITY      0x2A

#define VXC_PORT1             0xC0
#define VXC_PORT2             0xE0
#define VXC_PORT1_SPEED_MODE  0xDC
#define VXC_PORT2_SPEED_MODE  0xFC

#define VXC_BOARD_ID          0xDC

/* Values */
#define VXC_LOW_SPEED         0x00
#define VXC_HIGH_SPEED        0x02

#define VXC_LED_OFF           0x00 // Off all output state
#define VXC_142_CONFIG        0x80 // Aux7 for LED Output, Aux0/1 for Int Input
#define VXC_182i_CONFIG       0x80
#define VXC_112A_CONFIG       0x20 // Aux5 for LED Output, Aux2/3 for Int Input
#define VXC_142_LED_ON        0x80 // Aux7 for LED On
#define VXC_182i_LED_ON       0x80
#define VXC_112A_LED_ON       0x20 // Aux5 for LED On

#define THR   0   /* Transmitter Holding Register, tx buffer */
#define RBR   0   /* Receiver Buffer Register    , rx buffer */
#define DLL   0   /* Baud LSB        */
#define DLH   1   /* Baud MSB        */
#define IER   1   /* Interrupt Enable Register    */
#define FCR   2   /* FIFO Control Register        */
#define LCR   3   /* Line Control Register        */
#define DFR   3   /* Data Format Register         */
#define MCR   4   /* Modem Control Register       */
#define LSR   5   /* Line Status Register         */

#define VXC_THR    0   /* Transmitter Holding Register, tx buffer */
#define VXC_RBR    0   /* Receiver Buffer Register    , rx buffer */
#define VXC_DLL    0   /* Baud LSB        */
#define VXC_DLH    4   /* Baud MSB        */
#define VXC_IER    4   /* Interrupt Enable Register    */
#define VXC_FCR    8   /* FIFO Control Register        */
#define VXC_IIR    8   /* Interrupt Identify Register  */
#define VXC_LCR   12   /* Line Control Register        */
#define VXC_DFR   12   /* Data Format Register         */
#define VXC_MCR   16   /* Modem Control Register       */
#define VXC_LSR   20   /* Line Status Register         */

// Error Codes
#define  VXC_NoError            0
#define  VXC_InvalidBaudrate    1
#define  VXC_InvalidDataFormat  2
#define  VXC_Timeout            3
#define  VXC_ChecksumError      4


/* Configure the AUX I/O direction for VXC series */
// wBase   : Base Address
// bConfig : VXC_142_CONFIG, VXC_182i_CONFIG
#define Vxc_SetConfig(wBase,bConfig)\
outportb((wBase)+VXC_AUX_CONTROL,(bConfig))

/* Set VXC Card LED On or Off */
// wBase  : Base Address
// bOnOff : VXC_LED_OFF, VXC_142_LED_ON, VXC_182i_LED_ON
#define Vxc_SetLed(wBase,bOnOff)\
outportb((wBase)+VXC_AUX_DATA,(bOnOff))

/* Read VXC Card Board ID number */
// wBase : Base Address
#define Vxc_GetBoardID(wBase)\
(0xFF & ~inportb((wBase)+VXC_BOARD_ID))

// Set the base Clcok Rate
// wBase    : Base Address
// bChannel : 0 for Port1, 1 for Port2
// bMode    : VXC_LOW_SPEED VXC_HIGH_SPEED clock
#define Vxc_SetSpeedMode(wBase,bChannel,bMode)\
outportb((wBase)+VXC_PORT1_SPEED_MODE+0x20*bChannel,(bMode))


int Vxc_OpenCom( WORD wPortAddr, DWORD dwBaudRate, char szFormat[]);
int Vxc_CloseCom(WORD wPortAddr);

int Vxc_SendChar(   WORD wPortAddr, int ch,  WORD wTimeout);
int Vxc_ReceiveChar(WORD wPortAddr, int *ch, WORD wTimeout);

int Vxc_SendCmd(    WORD wPortAddr, char cCmd[], DWORD lTimeout, int iChksum);
int Vxc_ReceiveCmd( WORD wPortAddr, char cCmd[], DWORD lTimeout, int iChksum);

#endif