Changeset 1740 for Whitix/branches

Timestamp:

01/03/09 16:25:53 (3 years ago)

Author:

mwhitworth

Message:

Add start of ring allocation to PCNet driver.

Files:

• Whitix/branches/netchannel/devices/net/pcnet.c (modified) (4 diffs)

Whitix/branches/netchannel/devices/net/pcnet.c

@@ -27 +27 @@
 #include <print.h>
 
+/* Defines */
+
+/* Resonable default values are 4 send buffers, and 16 receive uffers. */
+#define PCNET32_LOG_SEND_BUFFERS                4
+#define PCNET32_LOG_RECV_BUFFERS                5
+
+#define PCNET32_SEND_RING_SIZE                  (1 << (PCNET32_LOG_SEND_BUFFERS))
+#define PCNET32_RECV_RING_SIZE                  (1 << (PCNET32_LOG_RECV_BUFFERS))
+
 /* Structures */
 struct PcNetInitBlock
@@ -39 +48 @@
 };
 
+/* Ring descriptors. Used by the card. */
+struct PcNetRecvHead
+{
+        DWORD base;
+        WORD bufLen;
+        WORD status;
+        DWORD msgLen;
+        DWORD reserved;
+};
+
+struct PcNetSendHead
+{
+        DWORD base;
+        WORD length; /* Two's complement of length. */
+        WORD status;
+        DWORD misc;
+        DWORD reserved;
+};
+
 struct PcNetIoOps
 {
@@ -136 +164 @@
                 memcpy(macAddr, promAddr, 6);
         }
+}
+
+static int PcNetAllocRings(struct PcNetDevice* device)
+{
+        /* Allocate the send and recv rings. */
+        return 0;
 }
 
@@ -199 +233 @@
         
         ret->initBlock->mode = 0x0003;
-        /* lens */
+        ret->initBlock->lens = (4 << 12) | (5 << 4);
         
         for (i = 0; i < 6; i++)