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freebsd/sys/dev/pccard/card_if.m
2002-02-07 06:43:29 +00:00

257 lines
6.3 KiB
Objective-C

#
# Copyright (c) 1999 M. Warner Losh.
# 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
#
# $FreeBSD$
#
#include <sys/bus.h>
INTERFACE card;
# WARNING: THIS FILE IS USED BY BOTH OLDCARD AND NEWCARD. MAKE SURE
# YOU TEST BOTH KERNELS IF CHANGING THIS FILE.
#
# Companion interface for pccard. We need to set attributes for memory
# and i/o port mappings (as well as other types of attributes) that have
# a well defined meaning inside the pccard/cardbus system. The bus
# methods are inadequate for this because this must be done at the time the
# resources are set for the device, which predates their activation. Also,
# the driver activating the resources doesn't necessarily know or need to know
# these attributes.
#
METHOD int set_res_flags {
device_t dev;
device_t child;
int restype;
int rid;
u_long value;
};
METHOD int get_res_flags {
device_t dev;
device_t child;
int restype;
int rid;
u_long *value;
};
#
# Sets the memory offset of the pccard bridge's window into attribute
# or common memory space.
#
METHOD int set_memory_offset {
device_t dev;
device_t child;
int rid;
u_int32_t cardaddr;
u_int32_t *deltap;
}
METHOD int get_memory_offset {
device_t dev;
device_t child;
int rid;
u_int32_t *offset;
}
#
# pccard bridges call this method to initate the attachment of a card
#
METHOD int attach_card {
device_t dev;
}
#
# pccard bridges call this to detach a card.
#
METHOD int detach_card {
device_t dev;
int flags;
}
#
# pccard/cardbus buses call this to request a reprobe of the bus.
# reprobe only initiated if the child bus is the same type the card inserted.
#
METHOD int reprobe_card {
device_t dev;
device_t child;
}
HEADER {
#define DETACH_FORCE 0x01
}
#
# Returns the type of card this is. Maybe we don't need this.
#
METHOD int get_type {
device_t dev;
int *type;
}
#
# Returns the function number for this device.
#
METHOD int get_function {
device_t dev;
device_t child;
int *func;
}
#
# Activates (and powers up if necessary) the card's nth function
# since each function gets its own device, there is no need to
# to specify a function number
#
METHOD int activate_function {
device_t dev;
device_t child;
}
METHOD int deactivate_function {
device_t dev;
device_t child;
}
#
# Compatibility methods for OLDCARD drivers. We use these routines to make
# it possible to call the OLDCARD driver's probe routine in the context that
# it expects. For OLDCARD these are implemented as pass throughs to the
# device_{probe,attach} routines. For NEWCARD they are implemented such
# such that probe becomes strictly a matching routine and attach does both
# the old probe and old attach.
#
# compat devices should use the following:
#
# /* Device interface */
# DEVMETHOD(device_probe), pccard_compat_probe),
# DEVMETHOD(device_attach), pccard_compat_attach),
# /* Card interface */
# DEVMETHOD(card_compat_match, foo_match), /* newly written */
# DEVMETHOD(card_compat_probe, foo_probe), /* old probe */
# DEVMETHOD(card_compat_attach, foo_attach), /* old attach */
#
# This will allow a single driver binary image to be used for both
# OLDCARD and NEWCARD.
#
# Drivers wishing to not retain OLDCARD compatibility needn't do this.
#
# The compat_do_* versions are so that we can make the pccard_compat_probe
# and _attach static lines and have the bus system pick the right version
# to use so we don't enshrine pccard_* symbols in the driver's module.
#
METHOD int compat_probe {
device_t dev;
}
METHOD int compat_attach {
device_t dev;
}
CODE {
static int null_do_probe(device_t bus, device_t dev) __unused;
static int null_do_probe(device_t bus, device_t dev)
{
return (CARD_COMPAT_DO_PROBE(device_get_parent(bus), dev));
}
static int null_do_attach(device_t bus, device_t dev)
{
return (CARD_COMPAT_DO_ATTACH(device_get_parent(bus), dev));
}
}
METHOD int compat_do_probe {
device_t bus;
device_t dev;
} DEFAULT null_do_attach;
METHOD int compat_do_attach {
device_t bus;
device_t dev;
} DEFAULT null_do_attach;
#
# Helper method for the above. When a compatibility driver is converted,
# one must write a match routine. This routine is unused on OLDCARD but
# is used as a discriminator for NEWCARD.
#
METHOD int compat_match {
device_t dev;
}
#
# Method for devices to ask its CIS-enabled parent bus for CIS info.
# Device driver requests all tuples if type 'id', the routine places
# 'nret' number of tuples in 'buff'. Returns 0 if all tuples processed,
# or an error code if processing was aborted.
# Users of this method will be responsible for freeing the memory allocated
# by calling the cis_free method.
#
HEADER {
struct cis_tupleinfo {
u_int8_t id;
int len;
char *data;
};
};
CODE {
static int
null_cis_read(device_t dev, device_t child, u_int8_t id,
struct cis_tupleinfo **buff, int *nret)
{
*nret = 0;
*buff = NULL;
return ENXIO;
}
static void
null_cis_free(device_t dev, struct cis_tupleinfo *buff, int *nret)
{
return;
}
};
METHOD int cis_read {
device_t dev;
device_t child;
u_int8_t id;
struct cis_tupleinfo **buff;
int *nret;
} DEFAULT null_cis_read;
METHOD int cis_free {
device_t dev;
struct cis_tupleinfo *buff;
int nret;
} DEFAULT null_cis_free;