1 files changed, 222 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/nds/wifi/compat.c b/c/src/lib/libbsp/arm/nds/wifi/compat.c
new file mode 100644
index 0000000000..956ddff481
--- /dev/null
+++ b/c/src/lib/libbsp/arm/nds/wifi/compat.c
@@ -0,0 +1,222 @@
+/*
+ * RTEMS for Nintendo DS sgIP compatibility glue.
+ *
+ * Copyright (c) 2008 by Matthieu Bucchianeri <mbucchia@gmail.com>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ *
+ * http://www.rtems.com/license/LICENSE
+ *
+ * $Id$
+ */
+
+#include <rtems.h>
+#include <stdlib.h>
+
+#include <sys/mbuf.h>
+#undef malloc
+#undef free
+
+#include "compat.h"
+
+unsigned long sgIP_timems = 0;
+static sgIP_Hub_HWInterface hw;
+
+/*
+ * Dswifi stub functions
+ */
+
+void *
+sgIP_malloc (int size)
+{
+  return malloc (size);
+}
+
+void
+sgIP_free (void *ptr)
+{
+  free (ptr);
+}
+
+/*
+ * called by dswifi on initialization
+ */
+
+void
+sgIP_Init ()
+{
+}
+
+/*
+ * network layer stack timer called periodically
+ */
+
+void
+sgIP_Timer (int num_ms)
+{
+  sgIP_timems += num_ms;
+}
+
+/*
+ * add a new hardware interface
+ * should be called once
+ */
+
+sgIP_Hub_HWInterface *
+sgIP_Hub_AddHardwareInterface (int (*TransmitFunction)
+                               (sgIP_Hub_HWInterface *, sgIP_memblock *),
+                               int (*InterfaceInit) (sgIP_Hub_HWInterface *))
+{
+  hw.TransmitFunction = TransmitFunction;
+  if (InterfaceInit)
+    InterfaceInit (&hw);
+
+  return &hw;
+}
+
+/*
+ * callback on packet reception
+ * translate memblock to mbuf
+ */
+
+int
+sgIP_Hub_ReceiveHardwarePacket (sgIP_Hub_HWInterface * hw,
+                                sgIP_memblock * packet)
+{
+  struct mbuf *m;
+  unsigned char *p;
+  extern void wifi_signal (struct mbuf *);
+
+  /* reserve the mbuf */
+  MGETHDR (m, M_WAIT, MT_DATA);
+  MCLGET (m, M_WAIT);
+
+  /* copy data to mbuf */
+  p = mtod (m, unsigned char *);
+  m->m_len = m->m_pkthdr.len = packet->thislength;
+  memcpy (p, packet->datastart, packet->thislength);
+
+  /* free the memblock */
+  sgIP_memblock_free (packet);
+
+  /* signal packet arrival to the driver */
+  wifi_signal (m);
+
+  return 0;
+}
+
+/*
+ * function for sending a packet (translates mbuf to memblock)
+ */
+
+void
+compat_wifi_output (struct mbuf *m)
+{
+  sgIP_memblock *packet;
+  unsigned char *p;
+  size_t size = 0;
+  struct mbuf *l;
+
+  /* compute total size of the packet  */
+  for (l = m; l != NULL; l = l->m_next)
+    size += l->m_len;
+
+  /* allocate memblock */
+  packet = sgIP_memblock_allocHW (14, size - 14);
+
+  /* copy data from mbuf to memblock */
+  m_copydata (m, 0, size, packet->datastart);
+
+  /* call TransmitFunction */
+  hw.TransmitFunction (&hw, packet);
+
+  /* free mbuf */
+  m_freem (m);
+}
+
+/*
+ * allocate a memblock
+ */
+
+sgIP_memblock *
+sgIP_memblock_allocHW (int headersize, int packetsize)
+{
+  sgIP_memblock *mb;
+  mb =
+    (sgIP_memblock *) sgIP_malloc (SGIP_MEMBLOCK_HEADERSIZE +
+                                   SGIP_MAXHWHEADER + packetsize);
+  if (!mb)
+    return 0;
+  mb->totallength = headersize + packetsize;
+  mb->thislength = mb->totallength;
+  mb->datastart = mb->reserved + SGIP_MAXHWHEADER - headersize;
+  mb->next = 0;
+  return mb;
+}
+
+/*
+ * release a memblock
+ */
+
+void
+sgIP_memblock_free (sgIP_memblock * mb)
+{
+  sgIP_memblock *f;
+  return;
+  SGIP_INTR_PROTECT ();
+  while (mb) {
+    mb->totallength = 0;
+    mb->thislength = 0;
+    f = mb;
+    mb = mb->next;
+
+    sgIP_free (f);
+  }
+
+  SGIP_INTR_UNPROTECT ();
+}
+
+/*
+ * start DHCP discovery
+ */
+
+void
+sgIP_DHCP_Start (sgIP_Hub_HWInterface * interface, int getDNS)
+{
+}
+
+/*
+ * get DHCP state
+ */
+
+int
+sgIP_DHCP_Update ()
+{
+  return SGIP_DHCP_STATUS_SUCCESS;
+}
+
+/* ----------------- not my problem things ----------------  */
+
+/* flush ARP table */
+void
+sgIP_ARP_FlushInterface (sgIP_Hub_HWInterface * hw)
+{
+}
+
+/* send a ARP new IP notification */
+int
+sgIP_ARP_SendGratARP (sgIP_Hub_HWInterface * hw)
+{
+  return 0;
+}
+
+/* ----------------- unused things ------------------------ */
+
+sgIP_DNS_Record *
+sgIP_DNS_GetUnusedRecord ()
+{
+  static sgIP_DNS_Record rec;
+
+  return &rec;                  /* we must return a valid record even if not used */
+}