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/*
* rs232silversurfer.h
*
* Groepaz/Hitmen, 16.12.2001
*
* This defines for the SilverSurver (16c550 UART) what Ullrichs rs232 module
* defines for the Swithlink/Turbo232
*
* this driver operates in polling mode only atm !
*
*/
#ifndef _RS232silversurfer_H
#define _RS232silversurfer_H
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Baudrate settings */
#define RS_BAUD_50 0x00
#define RS_BAUD_110 0x10
#define RS_BAUD_134_5 0x20
#define RS_BAUD_300 0x30
#define RS_BAUD_600 0x40
#define RS_BAUD_1200 0x50
#define RS_BAUD_2400 0x60
#define RS_BAUD_4800 0x70
#define RS_BAUD_9600 0x80
#define RS_BAUD_19200 0x90
#define RS_BAUD_38400 0xa0
#define RS_BAUD_57600 0xb0
#define RS_BAUD_115200 0xc0
#define RS_BAUD_230400 0xd0
/* Stop bit settings */
#define RS_STOP_1 0x00
#define RS_STOP_2 0x04
/* Data bit settings */
#define RS_BITS_5 0x00
#define RS_BITS_6 0x01
#define RS_BITS_7 0x02
#define RS_BITS_8 0x03
/* Parity settings */
#define RS_PAR_NONE 0x00
#define RS_PAR_ODD 0x28
#define RS_PAR_EVEN 0x38
#define RS_PAR_MARK 0x48
#define RS_PAR_SPACE 0x48
/* Bit masks to mask out things from the status returned by rs232_status */
#define RS_STATUS_IRQ 0x01 /* (iir) IRQ condition */
#define RS_STATUS_OVERRUN 0x02 /* (lsr) Overrun error */
#define RS_STATUS_PE 0x04 /* (lsr) Parity error */
#define RS_STATUS_FE 0x08 /* (lsr) Framing error */
#define RS_STATUS_DSR 0x10 /* (msr>>1) NOT data set ready */
#define RS_STATUS_THRE 0x20 /* (lsr) Transmit holding reg. empty */
#define RS_STATUS_DCD 0x40 /* (msr>>1) NOT data carrier detect */
#define RS_STATUS_RDRF 0x80 /* Receiver data register full */
/* Error codes returned by all functions */
#define RS_ERR_OK 0x00 /* Not an error - relax */
#define RS_ERR_NOT_INITIALIZED 0x01 /* Module not initialized */
#define RS_ERR_BAUD_TOO_FAST 0x02 /* Cannot handle baud rate */
#define RS_ERR_BAUD_NOT_AVAIL 0x03 /* Baud rate not available */
#define RS_ERR_NO_DATA 0x04 /* Nothing to read */
#define RS_ERR_OVERFLOW 0x05 /* No room in send buffer */
/*****************************************************************************/
/* Code */
/*****************************************************************************/
unsigned char __fastcall__ ss232_init (char hacked);
/* Initialize the serial port, install the interrupt handler. The parameter
* has no effect for now and should be set to 0.
*/
unsigned char __fastcall__ ss232_params (unsigned char params, unsigned char parity);
/* Set the port parameters. Use a combination of the #defined values above. */
unsigned char __fastcall__ ss232_done (void);
/* Close the port, deinstall the interrupt hander. You MUST call this function
* before terminating the program, otherwise the machine may crash later. If
* in doubt, install an exit handler using atexit(). The function will do
* nothing, if it was already called.
*/
unsigned char __fastcall__ ss232_get (char* b);
/* Get a character from the serial port. If no characters are available, the
* function will return RS_ERR_NO_DATA, so this is not a fatal error.
*/
unsigned char __fastcall__ ss232_put (char b);
/* Send a character via the serial port. There is a transmit buffer, but
* transmitting is not done via interrupt. The function returns
* RS_ERR_OVERFLOW if there is no space left in the transmit buffer.
*/
unsigned char __fastcall__ ss232_pause (void);
/* Assert flow control and disable interrupts. */
unsigned char __fastcall__ ss232_unpause (void);
/* Re-enable interrupts and release flow control */
unsigned char __fastcall__ ss232_status (unsigned char* status,
unsigned char* errors);
/* Return the serial port status. */
/* End of rs232silversurfer.h */
#endif
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