347 lines
7.5 KiB
C
347 lines
7.5 KiB
C
/* $NetBSD: apecs_isa.c,v 1.4 1995/11/23 02:37:13 cgd Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1995 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Chris G. Demetriou
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/syslog.h>
|
|
#include <sys/device.h>
|
|
#include <vm/vm.h>
|
|
|
|
#include <dev/isa/isavar.h>
|
|
|
|
#include <alpha/pci/apecsreg.h>
|
|
#include <alpha/pci/apecsvar.h>
|
|
|
|
/*
|
|
* Allocation/deallocation functions.
|
|
*/
|
|
int apecs_pio_alloc __P((void *, isa_iooffset_t, isa_iosize_t));
|
|
int apecs_pio_dealloc __P((void *, isa_iooffset_t, isa_iosize_t));
|
|
|
|
/*
|
|
* Byte functions.
|
|
*/
|
|
isa_byte_t apecs_inb __P((void *, isa_iooffset_t));
|
|
#define apecs_insb 0 /* XXX */
|
|
void apecs_outb __P((void *, isa_iooffset_t, isa_byte_t));
|
|
#define apecs_outsb 0 /* XXX */
|
|
|
|
/*
|
|
* Word functions.
|
|
*/
|
|
isa_word_t apecs_inw __P((void *, isa_iooffset_t));
|
|
#define apecs_insw 0 /* XXX */
|
|
void apecs_outw __P((void *, isa_iooffset_t, isa_word_t));
|
|
#define apecs_outsw 0 /* XXX */
|
|
|
|
/*
|
|
* Longword functions.
|
|
*/
|
|
isa_long_t apecs_inl __P((void *, isa_iooffset_t));
|
|
#define apecs_insl 0 /* XXX */
|
|
void apecs_outl __P((void *, isa_iooffset_t, isa_long_t));
|
|
#define apecs_outsl 0 /* XXX */
|
|
|
|
__const struct pci_pio_fns apecs_pio_fns = {
|
|
/* Allocation/deallocation functions. */
|
|
apecs_pio_alloc, apecs_pio_dealloc,
|
|
|
|
/* Byte functions. */
|
|
apecs_inb, apecs_insb,
|
|
apecs_outb, apecs_outsb,
|
|
|
|
/* Word functions. */
|
|
apecs_inw, apecs_insw,
|
|
apecs_outw, apecs_outsw,
|
|
|
|
/* Longword functions. */
|
|
apecs_inl, apecs_insl,
|
|
apecs_outl, apecs_outsl,
|
|
};
|
|
|
|
int
|
|
apecs_pio_alloc(ipfarg, start, size)
|
|
void *ipfarg;
|
|
isa_iooffset_t start;
|
|
isa_iosize_t size;
|
|
{
|
|
|
|
/* XXX should do something */
|
|
}
|
|
|
|
int
|
|
apecs_pio_dealloc(ipfarg, start, size)
|
|
void *ipfarg;
|
|
isa_iooffset_t start;
|
|
isa_iosize_t size;
|
|
{
|
|
|
|
/* XXX should do something */
|
|
}
|
|
|
|
isa_byte_t
|
|
apecs_inb(ipfa, ioaddr)
|
|
void *ipfa;
|
|
isa_iooffset_t ioaddr;
|
|
{
|
|
u_int32_t *port, val;
|
|
isa_byte_t rval;
|
|
int offset;
|
|
|
|
wbflush();
|
|
offset = ioaddr & 3;
|
|
port = (int32_t *)phystok0seg(APECS_PCI_SIO | 0 << 3 | ioaddr << 5);
|
|
val = *port;
|
|
rval = ((val) >> (8 * offset)) & 0xff;
|
|
/* rval = val & 0xff; */
|
|
|
|
return rval;
|
|
}
|
|
|
|
void
|
|
apecs_outb(ipfa, ioaddr, val)
|
|
void *ipfa;
|
|
isa_iooffset_t ioaddr;
|
|
isa_byte_t val;
|
|
{
|
|
u_int32_t *port, nval;
|
|
int offset;
|
|
|
|
offset = ioaddr & 3;
|
|
nval = val /*<< (8 * offset)*/;
|
|
nval = val << (8 * offset);
|
|
port = (int32_t *)phystok0seg(APECS_PCI_SIO | 0 << 3 | ioaddr << 5);
|
|
|
|
*port = nval;
|
|
wbflush();
|
|
}
|
|
|
|
isa_word_t
|
|
apecs_inw(ipfa, ioaddr)
|
|
void *ipfa;
|
|
isa_iooffset_t ioaddr;
|
|
{
|
|
u_int32_t *port, val;
|
|
isa_word_t rval;
|
|
int offset;
|
|
|
|
wbflush();
|
|
offset = ioaddr & 3;
|
|
port = (int32_t *)phystok0seg(APECS_PCI_SIO | 1 << 3 | ioaddr << 5);
|
|
val = *port;
|
|
rval = ((val) >> (8 * offset)) & 0xffff;
|
|
rval = val & 0xffff;
|
|
|
|
panic("inw(0x%x) => 0x%x @ %p => 0x%x\n", ioaddr, val, port, rval);
|
|
|
|
return rval;
|
|
}
|
|
|
|
void
|
|
apecs_outw(ipfa, ioaddr, val)
|
|
void *ipfa;
|
|
isa_iooffset_t ioaddr;
|
|
isa_word_t val;
|
|
{
|
|
u_int32_t *port, nval;
|
|
int offset;
|
|
|
|
offset = ioaddr & 3;
|
|
nval = val /*<< (8 * offset)*/;
|
|
port = (int32_t *)phystok0seg(APECS_PCI_SIO | 1 << 3 | ioaddr << 5);
|
|
|
|
*port = nval;
|
|
wbflush();
|
|
}
|
|
|
|
isa_long_t
|
|
apecs_inl(ipfa, ioaddr)
|
|
void *ipfa;
|
|
isa_iooffset_t ioaddr;
|
|
{
|
|
u_int32_t *port, val;
|
|
isa_long_t rval;
|
|
int offset;
|
|
|
|
wbflush();
|
|
offset = ioaddr & 3;
|
|
port = (int32_t *)phystok0seg(APECS_PCI_SIO | 3 << 3 | ioaddr << 5);
|
|
val = *port;
|
|
rval = ((val) >> (8 * offset)) & 0xffffffff;
|
|
rval = val & 0xffffffff;
|
|
|
|
return rval;
|
|
}
|
|
|
|
void
|
|
apecs_outl(ipfa, ioaddr, val)
|
|
void *ipfa;
|
|
isa_iooffset_t ioaddr;
|
|
isa_long_t val;
|
|
{
|
|
u_int32_t *port, nval;
|
|
int offset;
|
|
|
|
offset = ioaddr & 3;
|
|
nval = val /*<< (8 * offset)*/;
|
|
port = (int32_t *)phystok0seg(APECS_PCI_SIO | 3 << 3 | ioaddr << 5);
|
|
|
|
*port = nval;
|
|
wbflush();
|
|
}
|
|
|
|
/* XXX XXX XXX */
|
|
|
|
#define pf(fn, args) fn args { panic(__STRING(fn)); }
|
|
|
|
void pf(apecs_dma_cascade, (void *idfa, isa_drq_t chan))
|
|
void pf(apecs_dma_copytobuf, ())
|
|
void pf(apecs_dma_copyfrombuf, ())
|
|
void pf(apecs_dma_start, (void *idfa, vm_offset_t addr,
|
|
isa_msize_t size, isa_drq_t chan, int flags))
|
|
void pf(apecs_dma_abort, (void *idfa, isa_drq_t chan))
|
|
void pf(apecs_dma_done, (void *idfa, isa_drq_t chan))
|
|
|
|
int apecs_dma_map __P((void *, vm_offset_t, isa_msize_t,
|
|
isa_moffset_t *, int));
|
|
void apecs_dma_unmap __P((void *, vm_offset_t, isa_msize_t, int,
|
|
isa_moffset_t *));
|
|
|
|
__const struct isa_dma_fns apecs_dma_fns = {
|
|
apecs_dma_cascade,
|
|
apecs_dma_map,
|
|
apecs_dma_unmap,
|
|
apecs_dma_copytobuf,
|
|
apecs_dma_copyfrombuf,
|
|
apecs_dma_start,
|
|
apecs_dma_abort,
|
|
apecs_dma_done,
|
|
};
|
|
|
|
int
|
|
apecs_dma_map(idfa, va, isasize, mappingsp, flags)
|
|
void *idfa;
|
|
vm_offset_t va;
|
|
isa_msize_t isasize;
|
|
isa_moffset_t *mappingsp;
|
|
int flags;
|
|
{
|
|
struct apecs_config *acp = idfa;
|
|
long todo;
|
|
int i;
|
|
|
|
if (ISA_DMA_NEEDCONTIG(flags) && isasize > NBPG ||
|
|
ISA_DMA_SIZEBOUND(flags) != ISA_DMA_SIZEBOUND_NONE ||
|
|
ISA_DMA_ADDRBOUND(flags) != ISA_DMA_ADDRBOUND_NONE)
|
|
panic("apecs_dma_map: punt");
|
|
|
|
i = 0;
|
|
todo = isasize;
|
|
|
|
while (todo > 0) {
|
|
mappingsp[i] = vtophys(va) | 0x40000000;
|
|
#if 0
|
|
printf("a_pd_m mapping %d: %lx -> %lx -> %lx\n", i, va,
|
|
vtophys(va), mappingsp[i]);
|
|
#endif
|
|
i++;
|
|
todo -= PAGE_SIZE - (va - trunc_page(va));
|
|
va += PAGE_SIZE - (va - trunc_page(va));
|
|
}
|
|
return (i);
|
|
}
|
|
|
|
void
|
|
apecs_dma_unmap(idfa, va, isasize, nmappings, mappingsp)
|
|
void *idfa;
|
|
vm_offset_t va;
|
|
isa_msize_t isasize;
|
|
int nmappings;
|
|
isa_moffset_t *mappingsp;
|
|
{
|
|
|
|
printf("apecs_dma_unmap: called\n");
|
|
}
|
|
|
|
vm_offset_t apecs_mem_map __P((void *, isa_moffset_t, isa_msize_t, int));
|
|
void apecs_mem_unmap __P((void *, vm_offset_t, isa_msize_t));
|
|
|
|
#if 0
|
|
void apecs_mem_copytoisa __P((void *, char *, vm_offset_t,
|
|
isa_moffset_t, isa_msize_t));
|
|
void apecs_mem_copyfromisa __P((void *, char *, vm_offset_t,
|
|
isa_moffset_t, isa_msize_t));
|
|
void apecs_mem_zero __P((void *, vm_offset_t, isa_moffset_t,
|
|
isa_msize_t));
|
|
#else
|
|
void pf(apecs_mem_copytoisa, ())
|
|
void pf(apecs_mem_copyfromisa, ())
|
|
void pf(apecs_mem_zero, ())
|
|
#endif
|
|
|
|
__const struct isa_mem_fns apecs_mem_fns = {
|
|
apecs_mem_map,
|
|
apecs_mem_unmap,
|
|
apecs_mem_copytoisa,
|
|
apecs_mem_copyfromisa,
|
|
apecs_mem_zero,
|
|
};
|
|
|
|
vm_offset_t
|
|
apecs_mem_map(imfa, isapa, isasize, cacheable)
|
|
void *imfa;
|
|
isa_moffset_t isapa;
|
|
isa_msize_t isasize;
|
|
int cacheable;
|
|
{
|
|
vm_offset_t sbpa;
|
|
|
|
/* XXX sanity checks on sizes, use of windows, etc. */
|
|
|
|
/* XXX MAGIC NUMBERS */
|
|
if (cacheable)
|
|
sbpa = (isapa & 0xffffffff) | APECS_PCI_DENSE;
|
|
else
|
|
sbpa = ((isapa & 0x7ffffff) << 5) | APECS_PCI_SPARSE;
|
|
|
|
return phystok0seg(sbpa);
|
|
}
|
|
|
|
void
|
|
apecs_mem_unmap(imfa, va, isasize)
|
|
void *imfa;
|
|
vm_offset_t va;
|
|
isa_msize_t isasize;
|
|
{
|
|
|
|
/* XXX sanity checks on va */
|
|
|
|
/* Nothing to do; mapping was done in direct-mapped segment. */
|
|
}
|