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linux/drivers/char/rio/host.h
Jiri Slaby 86fbf1486a [PATCH] Char: correct pci_get_device changes
Commits 881a8c120a and
efe1ec2783 corrects pci device matching in
only one way; it no longer oopses/crashes, despite hotplug is not solved
in these changes.

Whenever pci_find_device -> pci_get_device change is performed, also
pci_dev_get and pci_dev_put should be in most cases called to properly
handle hotplug.  This patch does exactly this thing -- increase refcount
to let kernel know, that we are using this piece of HW just now.

It affects moxa and rio char drivers.

Cc: <R.E.Wolff@BitWizard.nl>
Acked-by: Amit Gud <gud@eth.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-21 13:35:05 -07:00

124 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 : host.h
** SID : 1.2
** Last Modified : 11/6/98 11:34:10
** Retrieved : 11/6/98 11:34:21
**
** ident @(#)host.h 1.2
**
** -----------------------------------------------------------------------------
*/
#ifndef __rio_host_h__
#define __rio_host_h__
/*
** the host structure - one per host card in the system.
*/
#define MAX_EXTRA_UNITS 64
/*
** Host data structure. This is used for the software equiv. of
** the host.
*/
struct Host {
struct pci_dev *pdev;
unsigned char Type; /* RIO_EISA, RIO_MCA, ... */
unsigned char Ivec; /* POLLED or ivec number */
unsigned char Mode; /* Control stuff */
unsigned char Slot; /* Slot */
void __iomem *Caddr; /* KV address of DPRAM */
struct DpRam __iomem *CardP; /* KV address of DPRAM, with overlay */
unsigned long PaddrP; /* Phys. address of DPRAM */
char Name[MAX_NAME_LEN]; /* The name of the host */
unsigned int UniqueNum; /* host unique number */
spinlock_t HostLock; /* Lock structure for MPX */
unsigned int WorkToBeDone; /* set to true each interrupt */
unsigned int InIntr; /* Being serviced? */
unsigned int IntSrvDone; /* host's interrupt has been serviced */
void (*Copy) (void *, void __iomem *, int); /* copy func */
struct timer_list timer;
/*
** I M P O R T A N T !
**
** The rest of this data structure is cleared to zero after
** a RIO_HOST_FOAD command.
*/
unsigned long Flags; /* Whats going down */
#define RC_WAITING 0
#define RC_STARTUP 1
#define RC_RUNNING 2
#define RC_STUFFED 3
#define RC_READY 7
#define RUN_STATE 7
/*
** Boot mode applies to the way in which hosts in this system will
** boot RTAs
*/
#define RC_BOOT_ALL 0x8 /* Boot all RTAs attached */
#define RC_BOOT_OWN 0x10 /* Only boot RTAs bound to this system */
#define RC_BOOT_NONE 0x20 /* Don't boot any RTAs (slave mode) */
struct Top Topology[LINKS_PER_UNIT]; /* one per link */
struct Map Mapping[MAX_RUP]; /* Mappings for host */
struct PHB __iomem *PhbP; /* Pointer to the PHB array */
unsigned short __iomem *PhbNumP; /* Ptr to Number of PHB's */
struct LPB __iomem *LinkStrP; /* Link Structure Array */
struct RUP __iomem *RupP; /* Sixteen real rups here */
struct PARM_MAP __iomem *ParmMapP; /* points to the parmmap */
unsigned int ExtraUnits[MAX_EXTRA_UNITS]; /* unknown things */
unsigned int NumExtraBooted; /* how many of the above */
/*
** Twenty logical rups.
** The first sixteen are the real Rup entries (above), the last four
** are the link RUPs.
*/
struct UnixRup UnixRups[MAX_RUP + LINKS_PER_UNIT];
int timeout_id; /* For calling 100 ms delays */
int timeout_sem; /* For calling 100 ms delays */
long locks; /* long req'd for set_bit --RR */
char ____end_marker____;
};
#define Control CardP->DpControl
#define SetInt CardP->DpSetInt
#define ResetTpu CardP->DpResetTpu
#define ResetInt CardP->DpResetInt
#define Signature CardP->DpSignature
#define Sram1 CardP->DpSram1
#define Sram2 CardP->DpSram2
#define Sram3 CardP->DpSram3
#define Scratch CardP->DpScratch
#define __ParmMapR CardP->DpParmMapR
#define SLX CardP->DpSlx
#define Revision CardP->DpRevision
#define Unique CardP->DpUnique
#define Year CardP->DpYear
#define Week CardP->DpWeek
#define RIO_DUMBPARM 0x0860 /* what not to expect */
#endif