1 files changed, 61 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/drivers/net/pnic_api.h b/contrib/syslinux-4.02/gpxe/src/drivers/net/pnic_api.h
new file mode 100644
index 0000000..27e0236
--- /dev/null
+++ b/contrib/syslinux-4.02/gpxe/src/drivers/net/pnic_api.h
@@ -0,0 +1,61 @@
+/*
+ * Constants etc. for the Bochs/Etherboot pseudo-NIC
+ * 
+ * This header file must be valid C and C++.
+ *
+ * Operation of the pseudo-NIC (PNIC) is pretty simple.  To write a
+ * command plus data, first write the length of the data to
+ * PNIC_REG_LEN, then write the data a byte at a type to
+ * PNIC_REG_DATA, then write the command code to PNIC_REG_CMD.  The
+ * status will be available from PNIC_REG_STAT.  The length of any
+ * data returned will be in PNIC_REG_LEN and can be read a byte at a
+ * time from PNIC_REG_DATA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/*
+ * PCI parameters
+ */
+#define PNIC_PCI_VENDOR	0xfefe	/* Hopefully these won't clash with */
+#define PNIC_PCI_DEVICE 0xefef	/* any real PCI device IDs.         */
+
+/*
+ * 'Hardware' register addresses, offset from io_base
+ */
+#define PNIC_REG_CMD	0x00	/* Command register, 2 bytes, write only */
+#define PNIC_REG_STAT	0x00	/* Status register, 2 bytes, read only */
+#define PNIC_REG_LEN	0x02	/* Length register, 2 bytes, read-write */
+#define PNIC_REG_DATA	0x04	/* Data port, 1 byte, read-write */
+/*
+ * PNIC_MAX_REG used in Bochs to claim i/o space
+ */
+#define PNIC_MAX_REG	0x04
+
+/*
+ * Command code definitions: write these into PNIC_REG_CMD
+ */
+#define PNIC_CMD_NOOP		0x0000
+#define PNIC_CMD_API_VER	0x0001
+#define PNIC_CMD_READ_MAC	0x0002
+#define PNIC_CMD_RESET		0x0003
+#define PNIC_CMD_XMIT		0x0004
+#define PNIC_CMD_RECV		0x0005
+#define PNIC_CMD_RECV_QLEN	0x0006
+#define PNIC_CMD_MASK_IRQ	0x0007
+#define PNIC_CMD_FORCE_IRQ	0x0008
+
+/*
+ * Status code definitions: read these from PNIC_REG_STAT
+ *
+ * We avoid using status codes that might be confused with
+ * randomly-read data (e.g. 0x0000, 0xffff etc.)
+ */
+#define PNIC_STATUS_OK		0x4f4b		/* 'OK' */
+#define PNIC_STATUS_UNKNOWN_CMD	0x3f3f		/* '??' */
+
+/*
+ * Other miscellaneous information
+ */
+
+#define PNIC_API_VERSION	0x0101		/* 1.1 */