16c4c5af26
- No more distinction between i/o-mapped and memory-mapped devices. It's all "bus space" now, and space tags differentiate the space with finer grain than the bus chipset tag. - Add memory barrier methods. - Implement space alloc/free methods. - Implement region read/write methods (like memcpy to/from bus space). This interface provides a better abstraction for dealing with machine-independent chipset drivers.
130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/* $NetBSD: pci_compat.c,v 1.4 1996/10/21 22:28:54 thorpej Exp $ */
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/*
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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* Copyright (c) 1994 Charles Hannum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Compatibility functions, for use with old NetBSD/i386 PCI code.
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*
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* These should go away when all drivers are converted to the new
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* interfaces.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <vm/vm.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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__warn_references(pci_map_int,
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"uses pci_map_int() compatibility interface");
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void *
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pci_map_int(tag, level, func, arg)
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pcitag_t tag;
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int level;
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int (*func) __P((void *));
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void *arg;
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{
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pci_intr_handle_t ih;
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pcireg_t data;
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int pin, line;
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const char *intrstr;
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void *rv;
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data = pci_conf_read(NULL, tag, PCI_INTERRUPT_REG);
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pin = PCI_INTERRUPT_PIN(data);
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line = PCI_INTERRUPT_LINE(data);
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if (pci_intr_map(NULL, tag, pin, line, &ih))
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return NULL;
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intrstr = pci_intr_string(NULL, ih);
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rv = pci_intr_establish(NULL, ih, level, func, arg);
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if (rv == NULL)
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printf("pci_map_int: failed to map interrupt\n");
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else if (intrstr != NULL)
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printf("pci_map_int: interrupting at %s\n", intrstr);
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return (rv);
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}
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__warn_references(pci_map_io,
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"uses pci_map_io() compatibility interface");
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int
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pci_map_io(tag, reg, iobasep)
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pcitag_t tag;
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int reg;
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int *iobasep;
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{
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bus_addr_t ioaddr;
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bus_size_t iosize;
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bus_space_handle_t ioh;
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if (pci_io_find(NULL, tag, reg, &ioaddr, &iosize))
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return (1);
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if (bus_space_map(I386_BUS_SPACE_IO, ioaddr, iosize, 0, &ioh))
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return (1);
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*iobasep = ioh;
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return 0;
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}
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__warn_references(pci_map_mem,
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"uses pci_map_mem() compatibility interface");
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int
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pci_map_mem(tag, reg, vap, pap)
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pcitag_t tag;
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int reg;
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vm_offset_t *vap, *pap;
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{
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bus_addr_t memaddr;
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bus_size_t memsize;
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bus_space_handle_t memh;
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int cacheable;
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if (pci_mem_find(NULL, tag, reg, &memaddr, &memsize, &cacheable))
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return (1);
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if (bus_space_map(I386_BUS_SPACE_MEM, memaddr, memsize,
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cacheable, &memh))
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return (1);
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*vap = (vm_offset_t)memh;
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*pap = memaddr;
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return 0;
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}
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