1 files changed, 52 insertions, 0 deletions
diff --git a/gcell/include/gcell/gc_mbox.h b/gcell/include/gcell/gc_mbox.h
new file mode 100644
index 000000000..1d577ff8f
--- /dev/null
+++ b/gcell/include/gcell/gc_mbox.h
@@ -0,0 +1,52 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007,2008 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef INCLUDED_GCELL_GC_MBOX_H
+#define INCLUDED_GCELL_GC_MBOX_H
+
+/*
+ * The PPE and SPE exchange a few 32-bit messages via mailboxes.
+ * All have a 4 bit opcode in the high bits.
+ *
+ *      3                   2                   1
+ *    1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ *   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *   |  op   |                        arg                            |
+ *   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ */
+
+#define MK_MBOX_MSG(cmd, args) ((((cmd) & 0xf) << 28) | ((args) & 0x0fffffff))
+#define MBOX_MSG_OP(msg)  (((msg) >> 28) & 0xf)
+#define	MBOX_MSG_ARG(msg) ((msg) & 0x0fffffff)
+
+// PPE to SPE (sent via SPE Read Inbound Mailbox)
+
+#define OP_EXIT			0x0	// exit now
+#define	OP_GET_SPU_BUFSIZE	0x1 
+
+// SPE to PPE (sent via SPE Write Outbound Interrupt Mailbox)
+
+#define OP_JOBS_DONE		0x2	// arg is 0 or 1, indicating which
+					//   gc_completion_info_t contains the info
+#define	OP_SPU_BUFSIZE	        0x3	// arg is max number of bytes
+
+
+#endif /* INCLUDED_GCELL_GC_MBOX_H */