linux/drivers/char/rio/cmdpkt.h
Alan Cox 27c6e526f3 [PATCH] rio driver rework continued #1
More header cleanups, strip out typedefs and remove cruft.  There are a lot of
magic macros that can go and also a great deal of abuse of volatile that is
not needed any more as this patch set cleans up the misuse of pointer access
to ISA and PCI space.

It now builds cleanly on 64bit, although there is more work left to do

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00

183 lines
4.4 KiB
C

/*
** -----------------------------------------------------------------------------
**
** Perle Specialix driver for Linux
** Ported from existing RIO Driver for SCO sources.
*
* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
*
* 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 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; 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.
**
** Module : cmdpkt.h
** SID : 1.2
** Last Modified : 11/6/98 11:34:09
** Retrieved : 11/6/98 11:34:20
**
** ident @(#)cmdpkt.h 1.2
**
** -----------------------------------------------------------------------------
*/
#ifndef __rio_cmdpkt_h__
#define __rio_cmdpkt_h__
#ifdef SCCS_LABELS
#ifndef lint
static char *_cmdpkt_h_sccs_ = "@(#)cmdpkt.h 1.2";
#endif
#endif
/*
** overlays for the data area of a packet. Used in both directions
** (to build a packet to send, and to interpret a packet that arrives)
** and is very inconvenient for MIPS, so they appear as two separate
** structures - those used for modifying/reading packets on the card
** and those for modifying/reading packets in real memory, which have an _M
** suffix.
*/
#define RTA_BOOT_DATA_SIZE (PKT_MAX_DATA_LEN-2)
/*
** The boot information packet looks like this:
** This structure overlays a PktCmd->CmdData structure, and so starts
** at Data[2] in the actual pkt!
*/
struct BootSequence {
u16 NumPackets;
u16 LoadBase;
u16 CodeSize;
};
#define BOOT_SEQUENCE_LEN 8
struct SamTop {
u8 Unit;
u8 Link;
};
struct CmdHdr {
u8 PcCommand;
union {
u8 PcPhbNum;
u8 PcLinkNum;
u8 PcIDNum;
} U0;
};
struct PktCmd {
union {
struct {
struct CmdHdr CmdHdr;
struct BootSequence PcBootSequence;
} S1;
struct {
u16 PcSequence;
u8 PcBootData[RTA_BOOT_DATA_SIZE];
} S2;
struct {
u16 __crud__;
u8 PcUniqNum[4]; /* this is really a uint. */
u8 PcModuleTypes; /* what modules are fitted */
} S3;
struct {
struct CmdHdr CmdHdr;
u8 __undefined__;
u8 PcModemStatus;
u8 PcPortStatus;
u8 PcSubCommand; /* commands like mem or register dump */
u16 PcSubAddr; /* Address for command */
u8 PcSubData[64]; /* Date area for command */
} S4;
struct {
struct CmdHdr CmdHdr;
u8 PcCommandText[1];
u8 __crud__[20];
u8 PcIDNum2; /* It had to go somewhere! */
} S5;
struct {
struct CmdHdr CmdHdr;
struct SamTop Topology[LINKS_PER_UNIT];
} S6;
} U1;
};
struct PktCmd_M {
union {
struct {
struct {
u8 PcCommand;
union {
u8 PcPhbNum;
u8 PcLinkNum;
u8 PcIDNum;
} U0;
} CmdHdr;
struct {
u16 NumPackets;
u16 LoadBase;
u16 CodeSize;
} PcBootSequence;
} S1;
struct {
u16 PcSequence;
u8 PcBootData[RTA_BOOT_DATA_SIZE];
} S2;
struct {
u16 __crud__;
u8 PcUniqNum[4]; /* this is really a uint. */
u8 PcModuleTypes; /* what modules are fitted */
} S3;
struct {
u16 __cmd_hdr__;
u8 __undefined__;
u8 PcModemStatus;
u8 PcPortStatus;
u8 PcSubCommand;
u16 PcSubAddr;
u8 PcSubData[64];
} S4;
struct {
u16 __cmd_hdr__;
u8 PcCommandText[1];
u8 __crud__[20];
u8 PcIDNum2; /* Tacked on end */
} S5;
struct {
u16 __cmd_hdr__;
struct Top Topology[LINKS_PER_UNIT];
} S6;
} U1;
};
#define Command U1.S1.CmdHdr.PcCommand
#define PhbNum U1.S1.CmdHdr.U0.PcPhbNum
#define IDNum U1.S1.CmdHdr.U0.PcIDNum
#define IDNum2 U1.S5.PcIDNum2
#define LinkNum U1.S1.CmdHdr.U0.PcLinkNum
#define Sequence U1.S2.PcSequence
#define BootData U1.S2.PcBootData
#define BootSequence U1.S1.PcBootSequence
#define UniqNum U1.S3.PcUniqNum
#define ModemStatus U1.S4.PcModemStatus
#define PortStatus U1.S4.PcPortStatus
#define SubCommand U1.S4.PcSubCommand
#define SubAddr U1.S4.PcSubAddr
#define SubData U1.S4.PcSubData
#define CommandText U1.S5.PcCommandText
#define RouteTopology U1.S6.Topology
#define ModuleTypes U1.S3.PcModuleTypes
#endif