| /* |
| * Copyright (c) 2003, Groepaz/Hitmen. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * 3. The name of the author may not be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * 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__ rs232_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__ rs232_params (unsigned char params, unsigned char parity); |
| /* Set the port parameters. Use a combination of the #defined values above. */ |
| |
| unsigned char __fastcall__ rs232_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__ rs232_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__ rs232_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__ rs232_pause (void); |
| /* Assert flow control and disable interrupts. */ |
| |
| unsigned char __fastcall__ rs232_unpause (void); |
| /* Re-enable interrupts and release flow control */ |
| |
| unsigned char __fastcall__ rs232_status (unsigned char* status, |
| unsigned char* errors); |
| /* Return the serial port status. */ |
| |
| /* End of rs232silversurfer.h */ |
| #endif |
| |
| |
| |