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Now that I finally have power back, implement a couple more NDIS API

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routines: NdisUnchainBufferAtBack(), NdisGetFirstBufferFromPacketSafe()
and NdisGetFirstBufferFromPacket(). This should bring us a little
closer to getting the Intel centrino wireless NIC to work.

Note: I have not actually tested these additions since I don't
have a driver that calls them, however they're pretty simple, and
one of them is taken pretty much directly from the Windows ndis.h
header file, so I'm fairly confident they work, but disclaimers
apply.
This commit is contained in:
Bill Paul 2003-12-22 08:24:32 +00:00
parent 3c4c657681
commit d7d29b16e0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=123721
1 changed files with 75 additions and 0 deletions
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75
sys/compat/ndis/subr_ndis.c
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@ -177,6 +177,7 @@ __stdcall static void ndis_alloc_packet(ndis_status *,
ndis_packet **, ndis_handle);
__stdcall static void ndis_release_packet(ndis_packet *);
__stdcall static void ndis_unchain_headbuf(ndis_packet *, ndis_buffer **);
__stdcall static void ndis_unchain_tailbuf(ndis_packet *, ndis_buffer **);
__stdcall static void ndis_alloc_bufpool(ndis_status *,
ndis_handle *, uint32_t);
__stdcall static void ndis_free_bufpool(ndis_handle);
@ -231,6 +232,10 @@ __stdcall static ndis_status ndis_remove_miniport(ndis_handle *);
__stdcall static void ndis_termwrap(ndis_handle, void *);
__stdcall static void ndis_get_devprop(ndis_handle, void *, void *,
void *, cm_resource_list *, cm_resource_list *);
__stdcall static void ndis_firstbuf(ndis_packet *, ndis_buffer **,
void **, uint32_t *, uint32_t *);
__stdcall static void ndis_firstbuf_safe(ndis_packet *, ndis_buffer **,
void **, uint32_t *, uint32_t *, uint32_t);
__stdcall static void dummy(void);
@ -1501,6 +1506,36 @@ ndis_unchain_headbuf(packet, buf)
return;
}
__stdcall static void
ndis_unchain_tailbuf(packet, buf)
ndis_packet *packet;
ndis_buffer **buf;
{
ndis_packet_private *priv;
ndis_buffer *tmp;
if (packet == NULL || buf == NULL)
return;
priv = &packet->np_private;
priv->npp_validcounts = FALSE;
if (priv->npp_head == priv->npp_tail) {
*buf = priv->npp_head;
priv->npp_head = priv->npp_tail = NULL;
} else {
*buf = priv->npp_tail;
tmp = priv->npp_head;
while (tmp->nb_next != priv->npp_tail)
tmp = tmp->nb_next;
priv->npp_tail = tmp;
tmp->nb_next = NULL;
}
return;
}
/*
* The NDIS "buffer" manipulation functions are somewhat misnamed.
* They don't really allocate buffers: they allocate buffer mappings.
@ -2093,6 +2128,43 @@ __stdcall static void ndis_get_devprop(adapter, phydevobj,
return;
}
__stdcall static void
ndis_firstbuf(packet, buf, firstva, firstlen, totlen)
ndis_packet *packet;
ndis_buffer **buf;
void **firstva;
uint32_t *firstlen;
uint32_t *totlen;
{
ndis_buffer *tmp;
tmp = packet->np_private.npp_head;
*buf = tmp;
if (tmp == NULL) {
*firstva = NULL;
*firstlen = *totlen = 0;
} else {
*firstva = tmp->nb_startva;
*firstlen = *totlen = tmp->nb_bytecount;
for (tmp = tmp->nb_next; tmp != NULL; tmp = tmp->nb_next)
*totlen += tmp->nb_bytecount;
}
return;
}
__stdcall static void
ndis_firstbuf_safe(packet, buf, firstva, firstlen, totlen, prio)
ndis_packet *packet;
ndis_buffer **buf;
void **firstva;
uint32_t *firstlen;
uint32_t *totlen;
uint32_t prio;
{
ndis_firstbuf(packet, buf, firstva, firstlen, totlen);
}
__stdcall static void
dummy()
{
@ -2101,6 +2173,9 @@ dummy()
}
image_patch_table ndis_functbl[] = {
{ "NdisUnchainBufferAtBack", (FUNC)ndis_unchain_tailbuf, },
{ "NdisGetFirstBufferFromPacket", (FUNC)ndis_firstbuf },
{ "NdisGetFirstBufferFromPacketSafe", (FUNC)ndis_firstbuf_safe },
{ "NdisGetBufferPhysicalArraySize", (FUNC)ndis_buf_physpages },
{ "NdisMGetDeviceProperty", (FUNC)ndis_get_devprop },
{ "NdisInitAnsiString", (FUNC)ndis_init_ansi_string },