#ifndef IOI2C_INC
#define IOI2C_INC

/* MBARI Interface Board for Cirronet WIT-2410 Wireless MODEM - I2C Control Latch (PCA9535) defines */

#define MODEM_NODE_ADDR_WR  0x40
#define MODEM_NODE_ADDR_RD  0x41

#define MODEM_CFG_LO_BYTE   0xF8
#define MODEM_CFG_HI_BYTE   0x03
#define MODEM_DAT_LO_BYTE   0x07
#define MODEM_DAT_HI_BYTE   0xC0

#define MODEM_INPUT_PORT0   0x00
#define MODEM_INPUT_PORT1   0x01
#define MODEM_OUTPUT_PORT0  0x02
#define MODEM_OUTPUT_PORT1  0x03
#define MODEM_INVERT_PORT0  0x04
#define MODEM_INVERT_PORT1  0x05
#define MODEM_CONFIG_PORT0  0x06
#define MODEM_CONFIG_PORT1  0x07

#define MODEM_CFG           0x00
#define MODEM_RTS           0x01
#define MODEM_SLEEP         0x02

#define MODEM_K1_SET        0x12
#define MODEM_K1_RESET      0x13
#define MODEM_K2_SET        0x14
#define MODEM_K2_RESET      0x15
#define MODEM_STANDBY_LED   0x16
#define MODEM_CARRIER_LED   0x17

/* high level I2C function prototypes */
int   I2C_ReadInputPorts(uchar *Port0, uchar *Port1);
int   I2C_ReadInputPort0(uchar *Port0);
int   I2C_ReadInputPort1(uchar *Port1);
int   I2C_SetClrBitPort0(uchar Bit, uchar State);
int   I2C_SetClrBitPort1(uchar Bit, uchar State);
int   I2C_InitPortConfiguration(void);
int   I2C_WriteDefaultPortValues(void);
int   I2C_SetWriteMode(uchar Port);
int   I2C_SetReadMode(uchar Port);

/* low level I2C function prototypes */
void  I2C_Start(void);
void  I2C_Stop(void);
void  I2C_WrByte(uchar arg_value);
uchar I2C_RdByte(void);
uchar I2C_RdAck(void);
void  I2C_WrAck(void);
void  I2C_WrNak(void);

#endif