mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 14:06:03 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
487 lines
12 KiB
C
487 lines
12 KiB
C
/*****************************************************************************/
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/*
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* cdk.h -- CDK interface definitions.
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*
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* Copyright (C) 1996-1998 Stallion Technologies
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* Copyright (C) 1994-1996 Greg Ungerer.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*****************************************************************************/
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#ifndef _CDK_H
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#define _CDK_H
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/*****************************************************************************/
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#pragma pack(2)
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/*
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* The following set of definitions is used to communicate with the
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* shared memory interface of the Stallion intelligent multiport serial
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* boards. The definitions in this file are taken directly from the
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* document titled "Generic Stackable Interface, Downloader and
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* Communications Development Kit".
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*/
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/*
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* Define the set of important shared memory addresses. These are
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* required to initialize the board and get things started. All of these
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* addresses are relative to the start of the shared memory.
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*/
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#define CDK_SIGADDR 0x200
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#define CDK_FEATADDR 0x280
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#define CDK_CDKADDR 0x300
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#define CDK_RDYADDR 0x262
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#define CDK_ALIVEMARKER 13
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/*
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* On hardware power up the ROMs located on the EasyConnection 8/64 will
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* fill out the following signature information into shared memory. This
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* way the host system can quickly determine that the board is present
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* and is operational.
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*/
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typedef struct cdkecpsig {
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unsigned long magic;
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unsigned short romver;
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unsigned short cputype;
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unsigned char panelid[8];
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} cdkecpsig_t;
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#define ECP_MAGIC 0x21504345
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/*
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* On hardware power up the ROMs located on the ONboard, Stallion and
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* Brumbys will fill out the following signature information into shared
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* memory. This way the host system can quickly determine that the board
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* is present and is operational.
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*/
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typedef struct cdkonbsig {
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unsigned short magic0;
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unsigned short magic1;
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unsigned short magic2;
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unsigned short magic3;
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unsigned short romver;
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unsigned short memoff;
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unsigned short memseg;
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unsigned short amask0;
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unsigned short pic;
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unsigned short status;
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unsigned short btype;
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unsigned short clkticks;
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unsigned short clkspeed;
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unsigned short amask1;
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unsigned short amask2;
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} cdkonbsig_t;
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#define ONB_MAGIC0 0xf2a7
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#define ONB_MAGIC1 0xa149
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#define ONB_MAGIC2 0x6352
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#define ONB_MAGIC3 0xf121
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/*
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* Define the feature area structure. The feature area is the set of
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* startup parameters used by the slave image when it starts executing.
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* They allow for the specification of buffer sizes, debug trace, etc.
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*/
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typedef struct cdkfeature {
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unsigned long debug;
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unsigned long banner;
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unsigned long etype;
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unsigned long nrdevs;
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unsigned long brdspec;
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unsigned long txrqsize;
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unsigned long rxrqsize;
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unsigned long flags;
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} cdkfeature_t;
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#define ETYP_DDK 0
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#define ETYP_CDK 1
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/*
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* Define the CDK header structure. This is the info that the slave
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* environment sets up after it has been downloaded and started. It
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* essentially provides a memory map for the shared memory interface.
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*/
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typedef struct cdkhdr {
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unsigned short command;
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unsigned short status;
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unsigned short port;
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unsigned short mode;
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unsigned long cmd_buf[14];
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unsigned short alive_cnt;
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unsigned short intrpt_mode;
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unsigned char intrpt_id[8];
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unsigned char ver_release;
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unsigned char ver_modification;
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unsigned char ver_fix;
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unsigned char deadman_restart;
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unsigned short deadman;
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unsigned short nrdevs;
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unsigned long memp;
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unsigned long hostp;
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unsigned long slavep;
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unsigned char hostreq;
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unsigned char slavereq;
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unsigned char cmd_reserved[30];
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} cdkhdr_t;
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#define MODE_DDK 0
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#define MODE_CDK 1
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#define IMD_INTR 0x0
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#define IMD_PPINTR 0x1
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#define IMD_POLL 0xff
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/*
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* Define the memory mapping structure. This structure is pointed to by
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* the memp field in the stlcdkhdr struct. As many as these structures
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* as required are layed out in shared memory to define how the rest of
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* shared memory is divided up. There will be one for each port.
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*/
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typedef struct cdkmem {
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unsigned short dtype;
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unsigned long offset;
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} cdkmem_t;
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#define TYP_UNDEFINED 0x0
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#define TYP_ASYNCTRL 0x1
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#define TYP_ASYNC 0x20
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#define TYP_PARALLEL 0x40
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#define TYP_SYNCX21 0x60
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/*****************************************************************************/
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/*
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* Following is a set of defines and structures used to actually deal
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* with the serial ports on the board. Firstly is the set of commands
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* that can be applied to ports.
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*/
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#define ASYCMD (((unsigned long) 'a') << 8)
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#define A_NULL (ASYCMD | 0)
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#define A_FLUSH (ASYCMD | 1)
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#define A_BREAK (ASYCMD | 2)
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#define A_GETPORT (ASYCMD | 3)
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#define A_SETPORT (ASYCMD | 4)
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#define A_SETPORTF (ASYCMD | 5)
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#define A_SETPORTFTX (ASYCMD | 6)
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#define A_SETPORTFRX (ASYCMD | 7)
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#define A_GETSIGNALS (ASYCMD | 8)
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#define A_SETSIGNALS (ASYCMD | 9)
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#define A_SETSIGNALSF (ASYCMD | 10)
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#define A_SETSIGNALSFTX (ASYCMD | 11)
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#define A_SETSIGNALSFRX (ASYCMD | 12)
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#define A_GETNOTIFY (ASYCMD | 13)
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#define A_SETNOTIFY (ASYCMD | 14)
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#define A_NOTIFY (ASYCMD | 15)
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#define A_PORTCTRL (ASYCMD | 16)
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#define A_GETSTATS (ASYCMD | 17)
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#define A_RQSTATE (ASYCMD | 18)
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#define A_FLOWSTATE (ASYCMD | 19)
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#define A_CLEARSTATS (ASYCMD | 20)
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/*
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* Define those arguments used for simple commands.
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*/
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#define FLUSHRX 0x1
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#define FLUSHTX 0x2
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#define BREAKON -1
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#define BREAKOFF -2
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/*
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* Define the port setting structure, and all those defines that go along
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* with it. Basically this structure defines the characteristics of this
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* port: baud rate, chars, parity, input/output char cooking etc.
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*/
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typedef struct asyport {
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unsigned long baudout;
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unsigned long baudin;
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unsigned long iflag;
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unsigned long oflag;
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unsigned long lflag;
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unsigned long pflag;
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unsigned long flow;
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unsigned long spare1;
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unsigned short vtime;
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unsigned short vmin;
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unsigned short txlo;
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unsigned short txhi;
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unsigned short rxlo;
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unsigned short rxhi;
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unsigned short rxhog;
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unsigned short spare2;
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unsigned char csize;
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unsigned char stopbs;
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unsigned char parity;
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unsigned char stopin;
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unsigned char startin;
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unsigned char stopout;
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unsigned char startout;
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unsigned char parmark;
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unsigned char brkmark;
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unsigned char cc[11];
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} asyport_t;
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#define PT_STOP1 0x0
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#define PT_STOP15 0x1
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#define PT_STOP2 0x2
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#define PT_NOPARITY 0x0
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#define PT_ODDPARITY 0x1
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#define PT_EVENPARITY 0x2
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#define PT_MARKPARITY 0x3
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#define PT_SPACEPARITY 0x4
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#define F_NONE 0x0
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#define F_IXON 0x1
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#define F_IXOFF 0x2
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#define F_IXANY 0x4
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#define F_IOXANY 0x8
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#define F_RTSFLOW 0x10
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#define F_CTSFLOW 0x20
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#define F_DTRFLOW 0x40
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#define F_DCDFLOW 0x80
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#define F_DSROFLOW 0x100
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#define F_DSRIFLOW 0x200
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#define FI_NORX 0x1
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#define FI_RAW 0x2
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#define FI_ISTRIP 0x4
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#define FI_UCLC 0x8
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#define FI_INLCR 0x10
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#define FI_ICRNL 0x20
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#define FI_IGNCR 0x40
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#define FI_IGNBREAK 0x80
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#define FI_DSCRDBREAK 0x100
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#define FI_1MARKBREAK 0x200
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#define FI_2MARKBREAK 0x400
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#define FI_XCHNGBREAK 0x800
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#define FI_IGNRXERRS 0x1000
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#define FI_DSCDRXERRS 0x2000
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#define FI_1MARKRXERRS 0x4000
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#define FI_2MARKRXERRS 0x8000
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#define FI_XCHNGRXERRS 0x10000
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#define FI_DSCRDNULL 0x20000
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#define FO_OLCUC 0x1
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#define FO_ONLCR 0x2
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#define FO_OOCRNL 0x4
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#define FO_ONOCR 0x8
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#define FO_ONLRET 0x10
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#define FO_ONL 0x20
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#define FO_OBS 0x40
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#define FO_OVT 0x80
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#define FO_OFF 0x100
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#define FO_OTAB1 0x200
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#define FO_OTAB2 0x400
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#define FO_OTAB3 0x800
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#define FO_OCR1 0x1000
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#define FO_OCR2 0x2000
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#define FO_OCR3 0x4000
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#define FO_OFILL 0x8000
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#define FO_ODELL 0x10000
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#define P_RTSLOCK 0x1
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#define P_CTSLOCK 0x2
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#define P_MAPRTS 0x4
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#define P_MAPCTS 0x8
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#define P_LOOPBACK 0x10
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#define P_DTRFOLLOW 0x20
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#define P_FAKEDCD 0x40
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#define P_RXIMIN 0x10000
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#define P_RXITIME 0x20000
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#define P_RXTHOLD 0x40000
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/*
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* Define a structure to communicate serial port signal and data state
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* information.
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*/
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typedef struct asysigs {
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unsigned long data;
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unsigned long signal;
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unsigned long sigvalue;
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} asysigs_t;
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#define DT_TXBUSY 0x1
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#define DT_TXEMPTY 0x2
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#define DT_TXLOW 0x4
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#define DT_TXHIGH 0x8
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#define DT_TXFULL 0x10
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#define DT_TXHOG 0x20
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#define DT_TXFLOWED 0x40
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#define DT_TXBREAK 0x80
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#define DT_RXBUSY 0x100
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#define DT_RXEMPTY 0x200
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#define DT_RXLOW 0x400
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#define DT_RXHIGH 0x800
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#define DT_RXFULL 0x1000
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#define DT_RXHOG 0x2000
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#define DT_RXFLOWED 0x4000
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#define DT_RXBREAK 0x8000
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#define SG_DTR 0x1
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#define SG_DCD 0x2
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#define SG_RTS 0x4
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#define SG_CTS 0x8
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#define SG_DSR 0x10
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#define SG_RI 0x20
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/*
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* Define the notification setting structure. This is used to tell the
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* port what events we want to be informed about. Fields here use the
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* same defines as for the asysigs structure above.
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*/
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typedef struct asynotify {
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unsigned long ctrl;
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unsigned long data;
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unsigned long signal;
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unsigned long sigvalue;
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} asynotify_t;
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/*
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* Define the port control structure. It is used to do fine grain
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* control operations on the port.
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*/
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typedef struct {
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unsigned long rxctrl;
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unsigned long txctrl;
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char rximdch;
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char tximdch;
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char spare1;
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char spare2;
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} asyctrl_t;
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#define CT_ENABLE 0x1
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#define CT_DISABLE 0x2
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#define CT_STOP 0x4
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#define CT_START 0x8
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#define CT_STARTFLOW 0x10
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#define CT_STOPFLOW 0x20
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#define CT_SENDCHR 0x40
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/*
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* Define the stats structure kept for each port. This is a useful set
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* of data collected for each port on the slave. The A_GETSTATS command
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* is used to retrieve this data from the slave.
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*/
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typedef struct asystats {
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unsigned long opens;
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unsigned long txchars;
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unsigned long rxchars;
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unsigned long txringq;
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unsigned long rxringq;
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unsigned long txmsgs;
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unsigned long rxmsgs;
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unsigned long txflushes;
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unsigned long rxflushes;
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unsigned long overruns;
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unsigned long framing;
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unsigned long parity;
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unsigned long ringover;
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unsigned long lost;
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unsigned long rxstart;
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unsigned long rxstop;
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unsigned long txstart;
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unsigned long txstop;
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unsigned long dcdcnt;
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unsigned long dtrcnt;
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unsigned long ctscnt;
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unsigned long rtscnt;
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unsigned long dsrcnt;
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unsigned long ricnt;
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unsigned long txbreaks;
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unsigned long rxbreaks;
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unsigned long signals;
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unsigned long state;
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unsigned long hwid;
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} asystats_t;
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/*****************************************************************************/
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/*
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* All command and control communication with a device on the slave is
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* via a control block in shared memory. Each device has its own control
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* block, defined by the following structure. The control block allows
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* the host to open, close and control the device on the slave.
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*/
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typedef struct cdkctrl {
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unsigned char open;
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unsigned char close;
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unsigned long openarg;
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unsigned long closearg;
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unsigned long cmd;
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unsigned long status;
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unsigned long args[32];
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} cdkctrl_t;
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/*
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* Each device on the slave passes data to and from the host via a ring
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* queue in shared memory. Define a ring queue structure to hold the
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* vital information about each ring queue. Two ring queues will be
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* allocated for each port, one for receive data and one for transmit
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* data.
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*/
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typedef struct cdkasyrq {
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unsigned long offset;
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unsigned short size;
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unsigned short head;
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unsigned short tail;
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} cdkasyrq_t;
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/*
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* Each asynchronous port is defined in shared memory by the following
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* structure. It contains a control block to command a device, and also
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* the necessary data channel information as well.
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*/
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typedef struct cdkasy {
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cdkctrl_t ctrl;
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unsigned short notify;
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asynotify_t changed;
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unsigned short receive;
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cdkasyrq_t rxq;
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unsigned short transmit;
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cdkasyrq_t txq;
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} cdkasy_t;
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#pragma pack()
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/*****************************************************************************/
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/*
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* Define the set of ioctls used by the driver to do special things
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* to the board. These include interrupting it, and initializing
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* the driver after board startup and shutdown.
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*/
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#include <linux/ioctl.h>
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#define STL_BINTR _IO('s',20)
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#define STL_BSTART _IO('s',21)
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#define STL_BSTOP _IO('s',22)
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#define STL_BRESET _IO('s',23)
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/*
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* Define a set of ioctl extensions, used to get at special stuff.
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*/
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#define STL_GETPFLAG _IO('s',80)
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#define STL_SETPFLAG _IO('s',81)
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/*****************************************************************************/
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#endif
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