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Diffstat (limited to 'sys/dev/isa/if_ed.c')
-rw-r--r--sys/dev/isa/if_ed.c82
1 files changed, 44 insertions, 38 deletions
diff --git a/sys/dev/isa/if_ed.c b/sys/dev/isa/if_ed.c
index cd989034f91..f9722fc14d0 100644
--- a/sys/dev/isa/if_ed.c
+++ b/sys/dev/isa/if_ed.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if_ed.c,v 1.16 1996/05/26 00:27:17 deraadt Exp $ */
+/* $OpenBSD: if_ed.c,v 1.17 1996/07/31 01:51:49 niklas Exp $ */
/* $NetBSD: if_ed.c,v 1.100 1996/05/12 23:52:19 mycroft Exp $ */
/*
@@ -54,7 +54,6 @@
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
-#define ED_BYTE_ORDER LITTLE_ENDIAN
#include <dev/ic/dp8390reg.h>
#include <dev/isa/if_edreg.h>
@@ -1903,10 +1902,13 @@ ed_rint(sc)
bus_chipset_tag_t bc = sc->sc_bc;
bus_io_handle_t ioh = sc->sc_ioh;
int nicbase = sc->nic_base;
- u_char boundary, current;
- u_short len;
- u_char nlen;
- struct ed_ring packet_hdr;
+ u_int8_t boundary, current;
+ u_int16_t len;
+ u_int8_t nlen;
+ u_int8_t next_packet; /* pointer to next packet */
+ u_int8_t rsr; /* receiver status */
+ u_int16_t count; /* bytes in packet (length + 4) */
+ u_int8_t packet_hdr[ED_RING_HDRSZ];
int packet_ptr;
loop:
@@ -1940,12 +1942,15 @@ loop:
* the NIC.
*/
if (sc->mem_shared)
- ed_shared_readmem(sc, packet_ptr, (caddr_t)&packet_hdr,
+ ed_shared_readmem(sc, packet_ptr, packet_hdr,
sizeof(packet_hdr));
else
- ed_pio_readmem(sc, (long)packet_ptr,
- (caddr_t)&packet_hdr, sizeof(packet_hdr));
- len = bus_to_host_2(bc, packet_hdr.count);
+ ed_pio_readmem(sc, (long)packet_ptr, packet_hdr,
+ sizeof(packet_hdr));
+ rsr = packet_hdr[ED_RING_RSR];
+ next_packet = packet_hdr[ED_RING_NEXT_PACKET];
+ len = count = packet_hdr[ED_RING_COUNT] +
+ 256 * packet_hdr[ED_RING_COUNT + 1];
/*
* Try do deal with old, buggy chips that sometimes duplicate
@@ -1955,23 +1960,23 @@ loop:
*
* NOTE: sc->next_packet is pointing at the current packet.
*/
- if (packet_hdr.next_packet >= sc->next_packet)
- nlen = (packet_hdr.next_packet - sc->next_packet);
+ if (next_packet >= sc->next_packet)
+ nlen = (next_packet - sc->next_packet);
else
- nlen = ((packet_hdr.next_packet - sc->rec_page_start) +
+ nlen = ((next_packet - sc->rec_page_start) +
(sc->rec_page_stop - sc->next_packet));
--nlen;
if ((len & ED_PAGE_MASK) + sizeof(packet_hdr) > ED_PAGE_SIZE)
--nlen;
len = (len & ED_PAGE_MASK) | (nlen << ED_PAGE_SHIFT);
#ifdef DIAGNOSTIC
- if (len != packet_hdr.count) {
+ if (len != count) {
printf("%s: length does not match next packet pointer\n",
sc->sc_dev.dv_xname);
printf("%s: len %04x nlen %04x start %02x first %02x curr %02x next %02x stop %02x\n",
- sc->sc_dev.dv_xname, packet_hdr.count, len,
+ sc->sc_dev.dv_xname, count, len,
sc->rec_page_start, sc->next_packet, current,
- packet_hdr.next_packet, sc->rec_page_stop);
+ next_packet, sc->rec_page_stop);
}
#endif
@@ -1984,11 +1989,11 @@ loop:
* figure out the length from their own length field(s).
*/
if (len <= MCLBYTES &&
- packet_hdr.next_packet >= sc->rec_page_start &&
- packet_hdr.next_packet < sc->rec_page_stop) {
+ next_packet >= sc->rec_page_start &&
+ next_packet < sc->rec_page_stop) {
/* Go get packet. */
- edread(sc, packet_ptr + sizeof(struct ed_ring),
- len - sizeof(struct ed_ring));
+ edread(sc, packet_ptr + ED_RING_HDRSZ,
+ len - ED_RING_HDRSZ);
} else {
/* Really BAD. The ring pointers are corrupted. */
log(LOG_ERR,
@@ -2000,7 +2005,7 @@ loop:
}
/* Update next packet pointer. */
- sc->next_packet = packet_hdr.next_packet;
+ sc->next_packet = next_packet;
/*
* Update NIC boundary pointer - being careful to keep it one
@@ -2416,8 +2421,8 @@ ed_pio_readmem(sc, src, dst, amount)
ED_CR_RD0 | ED_CR_PAGE_0 | ED_CR_STA);
if (sc->isa16bit)
- bus_io_read_multi_2(bc, ioh, sc->asic_base + ED_NOVELL_DATA,
- dst, amount / 2);
+ bus_io_read_raw_multi_2(bc, ioh,
+ sc->asic_base + ED_NOVELL_DATA, dst, amount);
else
bus_io_read_multi_1(bc, ioh, sc->asic_base + ED_NOVELL_DATA,
dst, amount);
@@ -2459,8 +2464,8 @@ ed_pio_writemem(sc, src, dst, len)
ED_CR_RD1 | ED_CR_PAGE_0 | ED_CR_STA);
if (sc->isa16bit)
- bus_io_write_multi_2(bc, ioh, sc->asic_base + ED_NOVELL_DATA,
- src, len / 2);
+ bus_io_write_raw_multi_2(bc, ioh,
+ sc->asic_base + ED_NOVELL_DATA, src, len);
else
bus_io_write_multi_1(bc, ioh, sc->asic_base + ED_NOVELL_DATA,
src, len);
@@ -2542,18 +2547,16 @@ ed_pio_write_mbufs(sc, m, dst)
/* Finish the last word. */
if (wantbyte) {
savebyte[1] = *data;
- bus_io_write_2(bc, ioh,
- asicbase + ED_NOVELL_DATA,
- *(u_int16_t *)savebyte);
+ bus_io_write_raw_multi_2(bc, ioh,
+ asicbase + ED_NOVELL_DATA, savebyte, 2);
data++;
len--;
wantbyte = 0;
}
/* Output contiguous words. */
if (len > 1) {
- bus_io_write_multi_2(bc, ioh,
- asicbase + ED_NOVELL_DATA,
- data, len >> 1);
+ bus_io_write_raw_multi_2(bc, ioh,
+ asicbase + ED_NOVELL_DATA, data, len & ~1);
}
/* Save last byte, if necessary. */
if (len & 1) {
@@ -2565,8 +2568,8 @@ ed_pio_write_mbufs(sc, m, dst)
if (wantbyte) {
savebyte[1] = 0;
- bus_io_write_2(bc, ioh, asicbase + ED_NOVELL_DATA,
- *(u_int16_t *)savebyte);
+ bus_io_write_raw_multi_2(bc, ioh,
+ asicbase + ED_NOVELL_DATA, savebyte, 2);
}
}
@@ -2757,6 +2760,7 @@ ed_shared_writemem(sc, from, card, len)
{
bus_chipset_tag_t bc = sc->sc_bc;
bus_mem_handle_t memh = sc->sc_memh;
+ u_int16_t word;
/*
* For 16-bit cards, 16-bit memory access has already
@@ -2765,15 +2769,15 @@ ed_shared_writemem(sc, from, card, len)
* have to be careful.
*/
if (sc->isa16bit) {
+ word = from[0] + from[1] * 256;
while (len > 1) {
- bus_mem_write_2(bc, memh, card,
- *((u_int16_t *)from));
+ bus_mem_write_2(bc, memh, card, word);
from += 2;
card += 2;
len -= 2;
}
if (len == 1)
- bus_mem_write_2(bc, memh, card, (u_int16_t)(*from));
+ bus_mem_write_2(bc, memh, card, (u_int16_t)*from);
} else {
while (len--)
bus_mem_write_1(bc, memh, card++, *from++);
@@ -2788,14 +2792,16 @@ ed_shared_readmem(sc, card, to, len)
{
bus_chipset_tag_t bc = sc->sc_bc;
bus_mem_handle_t memh = sc->sc_memh;
+ u_int16_t word;
/*
* See comment above re. 16-bit cards.
*/
if (sc->isa16bit) {
while (len > 1) {
- *((u_int16_t *)to) = bus_mem_read_2(bc, memh, card);
- to += 2;
+ word = bus_mem_read_2(bc, memh, card);
+ *to++ = word & 0xff;
+ *to++ = word >> 8 & 0xff;
card += 2;
len -= 2;
}
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