1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/sk98lin/uboot_skb.c b/drivers/sk98lin/uboot_skb.c
new file mode 100644
index 0000000..9d86bea
--- /dev/null
+++ b/drivers/sk98lin/uboot_skb.c
@@ -0,0 +1,116 @@
+/*
+ * Definitions for the 'struct sk_buff' memory handlers in U-Boot.
+ *
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include "u-boot_compat.h"
+
+#define MAX_SKB		50
+
+static struct sk_buff *sk_table[MAX_SKB];
+
+
+struct sk_buff * alloc_skb(u32 size, int dummy)
+{
+	int i;
+	struct sk_buff * ret = NULL;
+
+	for (i = 0; i < MAX_SKB; i++)
+	{
+		if (sk_table[i])
+		{
+				/* Already allocated.
+				 */
+			continue;
+		}
+
+		sk_table[i] = malloc(sizeof(struct sk_buff));
+		if (! sk_table[i])
+		{
+			printf("alloc_skb: malloc failed\n");
+			break;
+		}
+
+		memset(sk_table[i], 0, sizeof(struct sk_buff));
+		sk_table[i]->data = sk_table[i]->data_unaligned =
+		                                            malloc(size + 16);
+		if (! sk_table[i]->data)
+		{
+			printf("alloc_skb: malloc failed\n");
+			free(sk_table[i]);
+			sk_table[i] = NULL;
+			break;
+		}
+
+		sk_table[i]->data += 16 - ((u32)sk_table[i]->data & 15);
+		sk_table[i]->len = size;
+		
+		break;
+	}
+
+	if (i < MAX_SKB)
+	{
+		ret = sk_table[i];
+	}
+
+	if (! ret)
+	{
+		printf("Unable to allocate skb!\n");
+	}
+
+	return ret;
+}
+
+void dev_kfree_skb_any(struct sk_buff *skb)
+{
+	int i;
+
+	for (i = 0; i < MAX_SKB; i++)
+	{
+		if (sk_table[i] != skb)
+		{
+			continue;
+		}
+
+		free(skb->data_unaligned);
+		free(skb);
+		sk_table[i] = NULL;
+		break;
+	}
+
+	if (i == MAX_SKB)
+	{
+		printf("SKB allocation error!\n");
+	}
+}
+
+void skb_reserve(struct sk_buff *skb, unsigned int len)
+{
+	skb->data+=len;
+}
+
+void skb_put(struct sk_buff *skb, unsigned int len)
+{
+	skb->len+=len;
+}