mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-17 10:26:15 +00:00
0d484d249f
- An "at" hint now reserves a device name. - A new BUS_HINT_DEVICE_UNIT method is added to the bus interface. When determining the unit number of a device, this method is invoked to let the bus driver specify the unit of a device given a specific devclass. This is the only way a device can be given a name reserved via an "at" hint. - Implement BUS_HINT_DEVICE_UNIT() for the acpi(4) and isa(4) bus drivers. Both of these busses implement this by comparing the resources for a given hint device with the resources enumerated by ACPI/PnPBIOS and wire a unit if the hint resources are a subset of the "real" resources. - Use bus_hinted_children() for adding hinted devices on isa(4) busses now instead of doing it by hand. - Remove the unit kludging from sio(4) as it is no longer necessary. Prodding from: peter, imp OK'd by: marcel MFC after: 1 month
84 lines
3.1 KiB
C
84 lines
3.1 KiB
C
/*-
|
|
* Copyright (c) 1999 Doug Rabson
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Parts of the ISA bus implementation common to all architectures.
|
|
*
|
|
* Drivers must not depend on information in this file as it can change
|
|
* without notice.
|
|
*/
|
|
|
|
/*
|
|
* PNP configurations are kept in a tailq.
|
|
*/
|
|
TAILQ_HEAD(isa_config_list, isa_config_entry);
|
|
struct isa_config_entry {
|
|
TAILQ_ENTRY(isa_config_entry) ice_link;
|
|
int ice_priority;
|
|
struct isa_config ice_config;
|
|
};
|
|
|
|
/*
|
|
* The structure used to attach devices to the isa bus.
|
|
*/
|
|
struct isa_device {
|
|
struct resource_list id_resources;
|
|
uint32_t id_vendorid; /* pnp vendor id */
|
|
uint32_t id_serial; /* pnp serial */
|
|
uint32_t id_logicalid; /* pnp logical device id */
|
|
uint32_t id_compatid; /* pnp compat device id */
|
|
struct isa_config_list id_configs; /* pnp config alternatives */
|
|
isa_config_cb *id_config_cb; /* callback function */
|
|
void *id_config_arg; /* callback argument */
|
|
int id_config_attr; /* pnp config attributes */
|
|
int id_pnpbios_handle; /* pnp handle, if any */
|
|
int id_pnp_csn; /* pnp Card Number */
|
|
int id_pnp_ldn; /* pnp Logical device on card */
|
|
int id_order;
|
|
};
|
|
|
|
#define DEVTOISA(dev) ((struct isa_device *) device_get_ivars(dev))
|
|
|
|
/*
|
|
* These functions are architecture dependant.
|
|
*/
|
|
extern void isa_init(device_t dev);
|
|
extern struct resource *isa_alloc_resource(device_t bus, device_t child,
|
|
int type, int *rid, u_long start, u_long end, u_long count, u_int flags);
|
|
extern int isa_release_resource(device_t bus, device_t child,
|
|
int type, int rid, struct resource *r);
|
|
|
|
extern int isa_setup_intr(device_t bus, device_t child, struct resource *r,
|
|
int flags, driver_filter_t *filter, void (*ihand)(void *), void *arg,
|
|
void **cookiep);
|
|
extern int isa_teardown_intr(device_t bus, device_t child, struct resource *r,
|
|
void *cookie);
|
|
|
|
extern driver_t isa_driver;
|
|
extern devclass_t isa_devclass;
|