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freebsd-dev/sys/isa/isavar.h

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Support files for ISA bus.
1998-08-06 08:49:09 +00:00
/*-
* Copyright (c) 1998 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.
*
* Add ivars for ISA pnp. * Move isa_dma* declarations to isavar.h. * Add a method ISA_DELETE_RESOURCE() to the ISA interface. * Tidy up include protection defines.
1999-05-30 11:02:17 +00:00
* $Id: isavar.h,v 1.8 1999/05/28 09:25:02 dfr Exp $
Support files for ISA bus.
1998-08-06 08:49:09 +00:00
*/
* Add ivars for ISA pnp. * Move isa_dma* declarations to isavar.h. * Add a method ISA_DELETE_RESOURCE() to the ISA interface. * Tidy up include protection defines.
1999-05-30 11:02:17 +00:00
#ifndef _ISA_ISAVAR_H_
#define _ISA_ISAVAR_H_
* Factor out the common code between the isa bus drivers for i386 and alpha. * Re-work the resource allocation code to use helper functions in subr_bus.c. * Add simple isa interface for manipulating the resource ranges which can be allocated and remove the code from isa_write_ivar() which was previously used for this purpose.
1999-05-22 15:18:28 +00:00
#include "isa_if.h"
* Add ivars for ISA pnp. * Move isa_dma* declarations to isavar.h. * Add a method ISA_DELETE_RESOURCE() to the ISA interface. * Tidy up include protection defines.
1999-05-30 11:02:17 +00:00
#include <isa/pnp.h>
#ifdef KERNEL
* Factor out the common code between the isa bus drivers for i386 and alpha. * Re-work the resource allocation code to use helper functions in subr_bus.c. * Add simple isa interface for manipulating the resource ranges which can be allocated and remove the code from isa_write_ivar() which was previously used for this purpose.
1999-05-22 15:18:28 +00:00
* Change device_add_child_after() to device_add_child_ordered() which is easier to use and more flexible. * Change BUS_ADD_CHILD to take an order argument instead of a place. * Define a partial ordering for isa devices so that sensitive devices are probed before non-sensitive ones.
1999-05-28 09:25:16 +00:00
/*
* ISA devices are partially ordered to ensure that devices which are
* sensitive to other driver probe routines are probed first. Plug and
* Play devices are added after devices with speculative probes so that
* the legacy hardware can claim resources allowing the Plug and Play
* hardware to choose different resources.
*/
#define ISA_ORDER_SENSITIVE 0 /* legacy sensitive hardware */
#define ISA_ORDER_SPECULATIVE 1 /* legacy non-sensitive hardware */
#define ISA_ORDER_PNP 2 /* plug-and-play hardware */
* Add ivars for ISA pnp. * Move isa_dma* declarations to isavar.h. * Add a method ISA_DELETE_RESOURCE() to the ISA interface. * Tidy up include protection defines.
1999-05-30 11:02:17 +00:00
#define ISA_NPORT_IVARS 8
#define ISA_NMEM_IVARS 4
* Add hooks to allow the X server to access I/O ports and memory. * Update drivers to the latest version of the bus interface. The ISA drivers' use of the new resource api is minimal. Garrett has some much cleaner drivers which should be more easily shared between i386 and alpha. This has only been tested on cia based machines. It should work on lca and apecs but I might have broken something.
1998-11-15 18:25:17 +00:00
#define ISA_NIRQ_IVARS 2
#define ISA_NDRQ_IVARS 2
Support files for ISA bus.
1998-08-06 08:49:09 +00:00
enum isa_device_ivars {
* Add hooks to allow the X server to access I/O ports and memory. * Update drivers to the latest version of the bus interface. The ISA drivers' use of the new resource api is minimal. Garrett has some much cleaner drivers which should be more easily shared between i386 and alpha. This has only been tested on cia based machines. It should work on lca and apecs but I might have broken something.
1998-11-15 18:25:17 +00:00
ISA_IVAR_PORT,
ISA_IVAR_PORT_0 = ISA_IVAR_PORT,
ISA_IVAR_PORT_1,
ISA_IVAR_PORTSIZE,
ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE,
ISA_IVAR_PORTSIZE_1,
ISA_IVAR_MADDR,
ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR,
ISA_IVAR_MADDR_1,
ISA_IVAR_MSIZE,
ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE,
ISA_IVAR_MSIZE_1,
ISA_IVAR_FLAGS,
ISA_IVAR_IRQ,
ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ,
ISA_IVAR_IRQ_1,
ISA_IVAR_DRQ,
ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ,
* Add ivars for ISA pnp. * Move isa_dma* declarations to isavar.h. * Add a method ISA_DELETE_RESOURCE() to the ISA interface. * Tidy up include protection defines.
1999-05-30 11:02:17 +00:00
ISA_IVAR_DRQ_1,
ISA_IVAR_VENDORID,
ISA_IVAR_SERIAL,
ISA_IVAR_LOGICALID,
ISA_IVAR_COMPATID
Support files for ISA bus.
1998-08-06 08:49:09 +00:00
};
Stage 1 of a cleanup of the i386 interrupt registration mechanism. Interrupts under the new scheme are managed by the i386 nexus with the awareness of the resource manager. There is further room for optimizing the interfaces still. All the users of register_intr()/intr_create() should be gone, with the exception of pcic and i386/isa/clock.c.
1999-04-21 07:26:30 +00:00
extern intrmask_t isa_irq_pending(void);
extern intrmask_t isa_irq_mask(void);
Slightly increase the visibility of the isa_wrap_old_drivers() stuff. It would be a shame to pollute the new isa.c with the isa_device.h defs.
1999-05-08 18:11:04 +00:00
#ifdef __i386__
extern void isa_wrap_old_drivers(void);
#endif
Support files for ISA bus.
1998-08-06 08:49:09 +00:00
/*
* Simplified accessors for isa devices
*/
#define ISA_ACCESSOR(A, B, T) \
\
static __inline T isa_get_ ## A(device_t dev) \
{ \
Bring the 'new-bus' to the i386. This extensively changes the way the i386 platform boots, it is no longer ISA-centric, and is fully dynamic. Most old drivers compile and run without modification via 'compatability shims' to enable a smoother transition. eisa, isapnp and pccard* are not yet using the new resource manager. Once fully converted, all drivers will be loadable, including PCI and ISA. (Some other changes appear to have snuck in, including a port of Soren's ATA driver to the Alpha. Soren, back this out if you need to.) This is a checkpoint of work-in-progress, but is quite functional. The bulk of the work was done over the last few years by Doug Rabson and Garrett Wollman. Approved by: core
1999-04-16 21:22:55 +00:00
uintptr_t v; \
Support files for ISA bus.
1998-08-06 08:49:09 +00:00
BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \
return (T) v; \
} \
\
static __inline void isa_set_ ## A(device_t dev, T t) \
{ \
u_long v = (u_long) t; \
BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \
}
ISA_ACCESSOR(port, PORT, int)
ISA_ACCESSOR(portsize, PORTSIZE, int)
ISA_ACCESSOR(irq, IRQ, int)
Bring the 'new-bus' to the i386. This extensively changes the way the i386 platform boots, it is no longer ISA-centric, and is fully dynamic. Most old drivers compile and run without modification via 'compatability shims' to enable a smoother transition. eisa, isapnp and pccard* are not yet using the new resource manager. Once fully converted, all drivers will be loadable, including PCI and ISA. (Some other changes appear to have snuck in, including a port of Soren's ATA driver to the Alpha. Soren, back this out if you need to.) This is a checkpoint of work-in-progress, but is quite functional. The bulk of the work was done over the last few years by Doug Rabson and Garrett Wollman. Approved by: core
1999-04-16 21:22:55 +00:00
ISA_ACCESSOR(drq, DRQ, int)
ISA_ACCESSOR(maddr, MADDR, int)
ISA_ACCESSOR(msize, MSIZE, int)
* Define a new static method DEVICE_IDENTIFY which is called to add device instances to a parent bus. * Define a new method BUS_ADD_CHILD which can be called from DEVICE_IDENTIFY to add new instances. * Add a generic implementation of DEVICE_PROBE which calls DEVICE_IDENTIFY for each driver attached to the parent's devclass. * Move the hint-based isa probe from the isa driver to a new isahint driver which can be shared between i386 and alpha.
1999-05-14 11:22:47 +00:00
ISA_ACCESSOR(flags, FLAGS, int)
* Add ivars for ISA pnp. * Move isa_dma* declarations to isavar.h. * Add a method ISA_DELETE_RESOURCE() to the ISA interface. * Tidy up include protection defines.
1999-05-30 11:02:17 +00:00
ISA_ACCESSOR(vendorid, VENDORID, int)
ISA_ACCESSOR(serial, SERIAL, int)
ISA_ACCESSOR(logicalid, LOGICALID, int)
ISA_ACCESSOR(compatid, COMPATID, int)
void isa_dmacascade __P((int chan));
void isa_dmadone __P((int flags, caddr_t addr, int nbytes, int chan));
void isa_dmainit __P((int chan, u_int bouncebufsize));
void isa_dmastart __P((int flags, caddr_t addr, u_int nbytes, int chan));
int isa_dma_acquire __P((int chan));
void isa_dma_release __P((int chan));
int isa_dmastatus __P((int chan));
int isa_dmastop __P((int chan));
#endif /* KERNEL */
#endif /* !_ISA_ISAVAR_H_ */
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