HardenedBSD/sys/pccard/slot.h
Warner Losh 4f76d87b21 Massive rewrite of pccard to convert it to newbus.
o Gut the compatibility interface, you now must attach with newbus.
o Unit numbers from pccardd are now ignored.  This may change the units
  assigned to a card.  It now uses the first available unit.
o kill old skeleton code that is now obsolete.
o Use newbus attachment code.
o cleanup interfile dependencies some.
o kill list of devices per slot.  we use the device tree for what we need.
o Remove now obsolete code.
o The ep driver (and maybe ed) may need some config file tweaks to
  allow it to attach.  See config files that were committed for examples
  on how to do this.

Drivers to be commited shortly.

This is an interrum fix until the new pccard.  ed, ep and sio will be
supported by me with this release, although others are welcome to try
to support other devices before new pccard is working.

I plan on doing minimal further work on this code base.  Be careful
when upgrading, since this code is known to work on my laptop and
those of a couple others as well, but your milage may vary.

BUGS TO BE FIXED:

o system memory isn't allocated yet, it will be soon.
o No devices actually have a pccard newbus attach in the tree.

BUGS THAT MIGHT BE FIXED:

o card removal, including suspend, usually hangs the system.

Many thanks to Peter Wemm and Doug Rabson for helping me to fill in
the missing bits of New Bus understanding at FreeBSD Con '99.
1999-10-25 02:41:58 +00:00

145 lines
4.9 KiB
C

/*
* Slot structures for PC-CARD interface.
* Each slot has a controller specific structure
* attached to it. A slot number allows
* mapping from the character device to the
* slot structure. This is separate to the
* controller slot number to allow multiple controllers
* to be accessed.
*-------------------------------------------------------------------------
*
* Copyright (c) 1995 Andrew McRae. 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.
*
* $FreeBSD$
*/
#ifndef _PCCARD_SLOT_H
#define _PCCARD_SLOT_H
/*
* Normally we shouldn't include stuff here, but we're trying to be
* compatible with the long, dark hand of the past.
*/
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <i386/isa/isa_device.h>
/*
* Controller data - Specific to each slot controller.
*/
struct slot;
struct slot_ctrl {
int (*mapmem) __P((struct slot *, int));
/* Map memory */
int (*mapio) __P((struct slot *, int));
/* Map io */
void (*reset) __P((void *));
/* init */
void (*disable) __P((struct slot *));
/* Disable slot */
int (*power) __P((struct slot *));
/* Set power values */
int (*ioctl) __P((struct slot *, int, caddr_t));
/* ioctl to lower level */
void (*mapirq) __P((struct slot *, int));
/* Map interrupt number */
void (*resume) __P((struct slot *));
/* suspend/resume support */
int extra; /* Controller specific size */
int maxmem; /* Number of allowed memory windows */
int maxio; /* Number of allowed I/O windows */
/*
* The rest is maintained by the mainline PC-CARD code.
*/
struct slot_ctrl *next; /* Allows linked list of controllers */
int slots; /* Slots available */
};
/*
* Device structure for cards. Each card may have one
* or more pccard drivers attached to it; each driver is assumed
* to require at most one interrupt handler, one I/O block
* and one memory block. This structure is used to link the different
* devices together.
*/
struct pccard_devinfo {
u_char name[128];
struct isa_device isahd;
int running; /* Current state of driver */
u_char misc[128]; /* For any random info */
struct slot *slt; /* Back pointer to slot */
struct resource_list resources;
struct pccard_devinfo *next; /* List of drivers */
};
/*
* Per-slot structure.
*/
struct slot {
int slotnum; /* Slot number */
int flags; /* Slot flags (see below) */
int rwmem; /* Read/write flags */
int irq; /* IRQ allocated (0 = none) */
int irqref; /* Reference count of driver IRQs */
struct pccard_devinfo *devices; /* List of drivers attached */
/*
* flags.
*/
unsigned int insert_seq; /* Firing up under the card */
struct callout_handle insert_ch;/* Insert event timeout handle */
struct callout_handle poff_ch; /* Power Off timeout handle */
enum cardstate state, laststate; /* Current/last card states */
struct selinfo selp; /* Info for select */
struct mem_desc mem[NUM_MEM_WINDOWS]; /* Memory windows */
struct io_desc io[NUM_IO_WINDOWS]; /* I/O windows */
struct power pwr; /* Power values */
struct slot_ctrl *ctrl; /* Per-controller data */
void *cdata; /* Controller specific data */
int pwr_off_pending;/* Power status of slot */
struct slot *next; /* Master list */
};
enum card_event { card_removed, card_inserted };
struct slot *pccard_alloc_slot(struct slot_ctrl *);
void pccard_event(struct slot *, enum card_event);
static __inline__ const char *
pccard_get_name(device_t dev)
{
struct pccard_devinfo *devi = (struct pccard_devinfo *)
device_get_ivars(dev);
if (!devi)
return ("anonymous");
return (devi->name);
}
#endif /* !_PCCARD_SLOT_H */