| /* |
| * Copyright 2003 Digi International (www.digi.com) |
| * Scott H Kilau <Scott_Kilau at digi dot com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the |
| * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| * PURPOSE. See the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!! |
| * |
| ************************************************************************ |
| *** FEP Version 5 dependent definitions |
| ************************************************************************/ |
| |
| #ifndef __DGAP_FEP5_H |
| #define __DGAP_FEP5_H |
| |
| /************************************************************************ |
| * FEP memory offsets |
| ************************************************************************/ |
| #define START 0x0004L /* Execution start address */ |
| |
| #define CMDBUF 0x0d10L /* Command (cm_t) structure offset */ |
| #define CMDSTART 0x0400L /* Start of command buffer */ |
| #define CMDMAX 0x0800L /* End of command buffer */ |
| |
| #define EVBUF 0x0d18L /* Event (ev_t) structure */ |
| #define EVSTART 0x0800L /* Start of event buffer */ |
| #define EVMAX 0x0c00L /* End of event buffer */ |
| #define FEP5_PLUS 0x0E40 /* ASCII '5' and ASCII 'A' is here */ |
| #define ECS_SEG 0x0E44 /* Segment of the extended channel structure */ |
| #define LINE_SPEED 0x10 /* Offset into ECS_SEG for line speed */ |
| /* if the fep has extended capabilities */ |
| |
| /* BIOS MAGIC SPOTS */ |
| #define ERROR 0x0C14L /* BIOS error code */ |
| #define SEQUENCE 0x0C12L /* BIOS sequence indicator */ |
| #define POSTAREA 0x0C00L /* POST complete message area */ |
| |
| /* FEP MAGIC SPOTS */ |
| #define FEPSTAT POSTAREA /* OS here when FEP comes up */ |
| #define NCHAN 0x0C02L /* number of ports FEP sees */ |
| #define PANIC 0x0C10L /* PANIC area for FEP */ |
| #define KMEMEM 0x0C30L /* Memory for KME use */ |
| #define CONFIG 0x0CD0L /* Concentrator configuration info */ |
| #define CONFIGSIZE 0x0030 /* configuration info size */ |
| #define DOWNREQ 0x0D00 /* Download request buffer pointer */ |
| |
| #define CHANBUF 0x1000L /* Async channel (bs_t) structs */ |
| #define FEPOSSIZE 0x1FFF /* 8K FEPOS */ |
| |
| #define XEMPORTS 0xC02 /* |
| * Offset in board memory where FEP5 stores |
| * how many ports it has detected. |
| * NOTE: FEP5 reports 64 ports when the user |
| * has the cable in EBI OUT instead of EBI IN. |
| */ |
| |
| #define FEPCLR 0x00 |
| #define FEPMEM 0x02 |
| #define FEPRST 0x04 |
| #define FEPINT 0x08 |
| #define FEPMASK 0x0e |
| #define FEPWIN 0x80 |
| |
| #define LOWMEM 0x0100 |
| #define HIGHMEM 0x7f00 |
| |
| #define FEPTIMEOUT 200000 |
| |
| #define ENABLE_INTR 0x0e04 /* Enable interrupts flag */ |
| #define FEPPOLL_MIN 1 /* minimum of 1 millisecond */ |
| #define FEPPOLL_MAX 20 /* maximum of 20 milliseconds */ |
| #define FEPPOLL 0x0c26 /* Fep event poll interval */ |
| |
| #define IALTPIN 0x0080 /* Input flag to swap DSR <-> DCD */ |
| |
| /************************************************************************ |
| * Command structure definition. |
| ************************************************************************/ |
| struct cm_t { |
| volatile unsigned short cm_head; /* Command buffer head offset */ |
| volatile unsigned short cm_tail; /* Command buffer tail offset */ |
| volatile unsigned short cm_start; /* start offset of buffer */ |
| volatile unsigned short cm_max; /* last offset of buffer */ |
| }; |
| |
| /************************************************************************ |
| * Event structure definition. |
| ************************************************************************/ |
| struct ev_t { |
| volatile unsigned short ev_head; /* Command buffer head offset */ |
| volatile unsigned short ev_tail; /* Command buffer tail offset */ |
| volatile unsigned short ev_start; /* start offset of buffer */ |
| volatile unsigned short ev_max; /* last offset of buffer */ |
| }; |
| |
| /************************************************************************ |
| * Download buffer structure. |
| ************************************************************************/ |
| struct downld_t { |
| uchar dl_type; /* Header */ |
| uchar dl_seq; /* Download sequence */ |
| ushort dl_srev; /* Software revision number */ |
| ushort dl_lrev; /* Low revision number */ |
| ushort dl_hrev; /* High revision number */ |
| ushort dl_seg; /* Start segment address */ |
| ushort dl_size; /* Number of bytes to download */ |
| uchar dl_data[1024]; /* Download data */ |
| }; |
| |
| /************************************************************************ |
| * Per channel buffer structure |
| ************************************************************************ |
| * Base Structure Entries Usage Meanings to Host * |
| * * |
| * W = read write R = read only * |
| * C = changed by commands only * |
| * U = unknown (may be changed w/o notice) * |
| ************************************************************************/ |
| struct bs_t { |
| volatile unsigned short tp_jmp; /* Transmit poll jump */ |
| volatile unsigned short tc_jmp; /* Cooked procedure jump */ |
| volatile unsigned short ri_jmp; /* Not currently used */ |
| volatile unsigned short rp_jmp; /* Receive poll jump */ |
| |
| volatile unsigned short tx_seg; /* W Tx segment */ |
| volatile unsigned short tx_head; /* W Tx buffer head offset */ |
| volatile unsigned short tx_tail; /* R Tx buffer tail offset */ |
| volatile unsigned short tx_max; /* W Tx buffer size - 1 */ |
| |
| volatile unsigned short rx_seg; /* W Rx segment */ |
| volatile unsigned short rx_head; /* W Rx buffer head offset */ |
| volatile unsigned short rx_tail; /* R Rx buffer tail offset */ |
| volatile unsigned short rx_max; /* W Rx buffer size - 1 */ |
| |
| volatile unsigned short tx_lw; /* W Tx buffer low water mark */ |
| volatile unsigned short rx_lw; /* W Rx buffer low water mark */ |
| volatile unsigned short rx_hw; /* W Rx buffer high water mark */ |
| volatile unsigned short incr; /* W Increment to next channel */ |
| |
| volatile unsigned short fepdev; /* U SCC device base address */ |
| volatile unsigned short edelay; /* W Exception delay */ |
| volatile unsigned short blen; /* W Break length */ |
| volatile unsigned short btime; /* U Break complete time */ |
| |
| volatile unsigned short iflag; /* C UNIX input flags */ |
| volatile unsigned short oflag; /* C UNIX output flags */ |
| volatile unsigned short cflag; /* C UNIX control flags */ |
| volatile unsigned short wfill[13]; /* U Reserved for expansion */ |
| |
| volatile unsigned char num; /* U Channel number */ |
| volatile unsigned char ract; /* U Receiver active counter */ |
| volatile unsigned char bstat; /* U Break status bits */ |
| volatile unsigned char tbusy; /* W Transmit busy */ |
| volatile unsigned char iempty; /* W Transmit empty event enable */ |
| volatile unsigned char ilow; /* W Transmit low-water event enable */ |
| volatile unsigned char idata; /* W Receive data interrupt enable */ |
| volatile unsigned char eflag; /* U Host event flags */ |
| |
| volatile unsigned char tflag; /* U Transmit flags */ |
| volatile unsigned char rflag; /* U Receive flags */ |
| volatile unsigned char xmask; /* U Transmit ready flags */ |
| volatile unsigned char xval; /* U Transmit ready value */ |
| volatile unsigned char m_stat; /* RC Modem status bits */ |
| volatile unsigned char m_change; /* U Modem bits which changed */ |
| volatile unsigned char m_int; /* W Modem interrupt enable bits */ |
| volatile unsigned char m_last; /* U Last modem status */ |
| |
| volatile unsigned char mtran; /* C Unreported modem trans */ |
| volatile unsigned char orun; /* C Buffer overrun occurred */ |
| volatile unsigned char astartc; /* W Auxiliary Xon char */ |
| volatile unsigned char astopc; /* W Auxiliary Xoff char */ |
| volatile unsigned char startc; /* W Xon character */ |
| volatile unsigned char stopc; /* W Xoff character */ |
| volatile unsigned char vnextc; /* W Vnext character */ |
| volatile unsigned char hflow; /* C Software flow control */ |
| |
| volatile unsigned char fillc; /* U Delay Fill character */ |
| volatile unsigned char ochar; /* U Saved output character */ |
| volatile unsigned char omask; /* U Output character mask */ |
| |
| volatile unsigned char bfill[13]; /* U Reserved for expansion */ |
| |
| volatile unsigned char scc[16]; /* U SCC registers */ |
| }; |
| |
| |
| /************************************************************************ |
| * FEP supported functions |
| ************************************************************************/ |
| #define SRLOW 0xe0 /* Set receive low water */ |
| #define SRHIGH 0xe1 /* Set receive high water */ |
| #define FLUSHTX 0xe2 /* Flush transmit buffer */ |
| #define PAUSETX 0xe3 /* Pause data transmission */ |
| #define RESUMETX 0xe4 /* Resume data transmission */ |
| #define SMINT 0xe5 /* Set Modem Interrupt */ |
| #define SAFLOWC 0xe6 /* Set Aux. flow control chars */ |
| #define SBREAK 0xe8 /* Send break */ |
| #define SMODEM 0xe9 /* Set 8530 modem control lines */ |
| #define SIFLAG 0xea /* Set UNIX iflags */ |
| #define SFLOWC 0xeb /* Set flow control characters */ |
| #define STLOW 0xec /* Set transmit low water mark */ |
| #define RPAUSE 0xee /* Pause receive */ |
| #define RRESUME 0xef /* Resume receive */ |
| #define CHRESET 0xf0 /* Reset Channel */ |
| #define BUFSETALL 0xf2 /* Set Tx & Rx buffer size avail*/ |
| #define SOFLAG 0xf3 /* Set UNIX oflags */ |
| #define SHFLOW 0xf4 /* Set hardware handshake */ |
| #define SCFLAG 0xf5 /* Set UNIX cflags */ |
| #define SVNEXT 0xf6 /* Set VNEXT character */ |
| #define SPINTFC 0xfc /* Reserved */ |
| #define SCOMMODE 0xfd /* Set RS232/422 mode */ |
| |
| |
| /************************************************************************ |
| * Modes for SCOMMODE |
| ************************************************************************/ |
| #define MODE_232 0x00 |
| #define MODE_422 0x01 |
| |
| |
| /************************************************************************ |
| * Event flags. |
| ************************************************************************/ |
| #define IFBREAK 0x01 /* Break received */ |
| #define IFTLW 0x02 /* Transmit low water */ |
| #define IFTEM 0x04 /* Transmitter empty */ |
| #define IFDATA 0x08 /* Receive data present */ |
| #define IFMODEM 0x20 /* Modem status change */ |
| |
| /************************************************************************ |
| * Modem flags |
| ************************************************************************/ |
| # define DM_RTS 0x02 /* Request to send */ |
| # define DM_CD 0x80 /* Carrier detect */ |
| # define DM_DSR 0x20 /* Data set ready */ |
| # define DM_CTS 0x10 /* Clear to send */ |
| # define DM_RI 0x40 /* Ring indicator */ |
| # define DM_DTR 0x01 /* Data terminal ready */ |
| |
| |
| #endif |
