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Endian-ness bugfix for elink3 on big-endian hosts. 

Big-endian CPUs should use bus_space_{read,write}_multi_stream methods
  to PIO packet data to NIC in 16-bit or 32-bit chunks.
  Make it so.
  Since we don't have stream methods on all ports yet (esp. i386), use
  the bus_space_{read,write}_multi methods if the compile-time
  stream-method feature-test   macro is not set.
Originally from tsubai@netbsd.org, via HAYAKAWA koichi's cardbus patches.
This commit is contained in:
jonathan 1999-04-13 20:23:52 +00:00
parent 8d7cb08335
commit 2bf9a70e67
1 changed files with 18 additions and 5 deletions
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23
sys/dev/ic/elink3.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: elink3.c,v 1.54 1999/03/25 23:18:32 thorpej Exp $ */
/* $NetBSD: elink3.c,v 1.55 1999/04/13 20:23:52 jonathan Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -124,6 +124,19 @@
int epdebug = 0;
#endif
/*
* XXX endian workaround for big-endian CPUs with pcmcia:
* if stream methods for bus_space_multi are not provided, define them
* using non-stream bus_space_{read,write}_multi_.
* Assumes host CPU is same endian-ness as bus.
*/
#ifndef __BUS_SPACE_HAS_STREAM_METHODS
#define bus_space_read_multi_stream_2 bus_space_read_multi_2
#define bus_space_read_multi_stream_4 bus_space_read_multi_4
#define bus_space_write_multi_stream_2 bus_space_write_multi_2
#define bus_space_write_multi_stream_4 bus_space_write_multi_4
#endif /* __BUS_SPACE_HAS_STREAM_METHODS */
/*
* Structure to map media-present bits in boards to ifmedia codes and
* printable media names. Used for table-driven ifmedia initialization.
@ -1115,7 +1128,7 @@ startagain:
(void *)(mtod(m, u_long) + count);
m->m_len -= count;
}
bus_space_write_multi_4(iot, ioh,
bus_space_write_multi_stream_4(iot, ioh,
txreg, mtod(m, u_int32_t *), m->m_len >> 2);
m->m_data = (void *)(mtod(m, u_long) +
(u_long)(m->m_len & ~3));
@ -1138,7 +1151,7 @@ startagain:
(void *)(mtod(m, u_long) + 1);
m->m_len -= 1;
}
bus_space_write_multi_2(iot, ioh,
bus_space_write_multi_stream_2(iot, ioh,
txreg, mtod(m, u_int16_t *),
m->m_len >> 1);
}
@ -1599,7 +1612,7 @@ epget(sc, totlen)
remaining -= count;
}
if (remaining > 3) {
bus_space_read_multi_4(iot, ioh,
bus_space_read_multi_stream_4(iot, ioh,
rxreg, (u_int32_t *) offset,
remaining >> 2);
offset += remaining & ~3;
@ -1618,7 +1631,7 @@ epget(sc, totlen)
offset += 1;
}
if (remaining > 1) {
bus_space_read_multi_2(iot, ioh,
bus_space_read_multi_stream_2(iot, ioh,
rxreg, (u_int16_t *) offset,
remaining >> 1);
offset += remaining & ~1;