Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / include / ipxe / mii.h

diff --git a/qemu/roms/ipxe/src/include/ipxe/mii.h b/qemu/roms/ipxe/src/include/ipxe/mii.h
new file mode 100644 (file)
index 0000000..f53ad4a
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/ipxe/mii.h
@@ -0,0 +1,118 @@
+#ifndef _IPXE_MII_H
+#define _IPXE_MII_H
+
+/** @file
+ *
+ * Media Independent Interface
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <mii.h>
+#include <ipxe/netdevice.h>
+
+struct mii_interface;
+
+/** MII interface operations */
+struct mii_operations {
+       /**
+        * Read from MII register
+        *
+        * @v mii               MII interface
+        * @v reg               Register address
+        * @ret data            Data read, or negative error
+        */
+       int ( * read ) ( struct mii_interface *mii, unsigned int reg );
+       /**
+        * Write to MII register
+        *
+        * @v mii               MII interface
+        * @v reg               Register address
+        * @v data              Data to write
+        * @ret rc              Return status code
+        */
+       int ( * write ) ( struct mii_interface *mii, unsigned int reg,
+                         unsigned int data );
+};
+
+/** An MII interface */
+struct mii_interface {
+       /** Interface operations */
+       struct mii_operations *op;
+};
+
+/**
+ * Initialise MII interface
+ *
+ * @v mii              MII interface
+ * @v op               MII interface operations
+ */
+static inline __attribute__ (( always_inline )) void
+mii_init ( struct mii_interface *mii, struct mii_operations *op ) {
+       mii->op = op;
+}
+
+/**
+ * Read from MII register
+ *
+ * @v mii              MII interface
+ * @v reg              Register address
+ * @ret data           Data read, or negative error
+ */
+static inline __attribute__ (( always_inline )) int
+mii_read ( struct mii_interface *mii, unsigned int reg ) {
+       return mii->op->read ( mii, reg );
+}
+
+/**
+ * Write to MII register
+ *
+ * @v mii              MII interface
+ * @v reg              Register address
+ * @v data             Data to write
+ * @ret rc             Return status code
+ */
+static inline __attribute__ (( always_inline )) int
+mii_write ( struct mii_interface *mii, unsigned int reg, unsigned int data ) {
+       return mii->op->write ( mii, reg, data );
+}
+
+/**
+ * Dump MII registers (for debugging)
+ *
+ * @v mii              MII interface
+ */
+static inline void
+mii_dump ( struct mii_interface *mii ) {
+       unsigned int i;
+       int data;
+
+       /* Do nothing unless debug output is enabled */
+       if ( ! DBG_LOG )
+               return;
+
+       /* Dump basic MII register set */
+       for ( i = 0 ; i < 16 ; i++ ) {
+               if ( ( i % 8 ) == 0 ) {
+                       DBGC ( mii, "MII %p registers %02x-%02x:",
+                              mii, i, ( i + 7 ) );
+               }
+               data = mii_read ( mii, i );
+               if ( data >= 0 ) {
+                       DBGC ( mii, " %04x", data );
+               } else {
+                       DBGC ( mii, " XXXX" );
+               }
+               if ( ( i % 8 ) == 7 )
+                       DBGC ( mii, "\n" );
+       }
+}
+
+/** Maximum time to wait for a reset, in milliseconds */
+#define MII_RESET_MAX_WAIT_MS 500
+
+extern int mii_restart ( struct mii_interface *mii );
+extern int mii_reset ( struct mii_interface *mii );
+
+#endif /* _IPXE_MII_H */