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-rw-r--r--firmware/fx2/b100/fpga_rev2.h44
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diff --git a/firmware/fx2/b100/fpga_rev2.h b/firmware/fx2/b100/fpga_rev2.h
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+/*
+ * USRP - Universal Software Radio Peripheral
+ *
+ * Copyright (C) 2003,2004 Free Software Foundation, Inc.
+ *
+ * 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 3 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., 51 Franklin Street, Boston, MA 02110-1301 USA
+ */
+
+#ifndef INCLUDED_FPGA_REV1_H
+#define INCLUDED_FPGA_REV1_H
+
+/*
+ * return TRUE if FPGA internal fifo has room for a single packet
+ */
+#define fpga_has_room_for_data_packet() (!(GPIFREADYSTAT & bmDATA_FIFO_FULL))
+#define fpga_has_room_for_ctrl_packet() (!(GPIFREADYSTAT & bmCTRL_FIFO_FULL))
+
+/*
+ * return TRUE if FPGA internal fifo has at least one packet available
+ */
+#define fpga_has_data_packet_avail() (!(GPIFREADYSTAT & bmDATA_EMPTY))
+#define fpga_has_ctrl_packet_avail() (!(GPIFREADYSTAT & bmCTRL_EMPTY))
+
+#define fx2_has_ctrl_packet_avail() (!(EP24FIFOFLGS & EP4FIFOEMPTY))
+#define fx2_has_data_packet_avail() (!(EP24FIFOFLGS & EP2FIFOEMPTY))
+
+#define fx2_has_room_for_ctrl_packet() (!(EP8CS & bmEPFULL))
+#define fx2_has_room_for_data_packet() (!(EP6CS & bmEPFULL))
+
+#define fx2_gpif_is_idle() (GPIFTRIG & bmGPIF_IDLE)
+
+#endif /* INCLUDED_FPGA_REV1_H */