sim: bfin: new port

[pf3gnuchains/sourceware.git] / sim / bfin / dv-bfin_uart.h

diff --git a/sim/bfin/dv-bfin_uart.h b/sim/bfin/dv-bfin_uart.h
new file mode 100644 (file)
index 0000000..1d144d4
--- /dev/null
+++ b/sim/bfin/dv-bfin_uart.h
@@ -0,0 +1,49 @@
+/* Blackfin Universal Asynchronous Receiver/Transmitter (UART) model.
+   For "old style" UARTs on BF53x/etc... parts.
+
+   Copyright (C) 2010-2011 Free Software Foundation, Inc.
+   Contributed by Analog Devices, Inc.
+
+   This file is part of simulators.
+
+   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, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef DV_BFIN_UART_H
+#define DV_BFIN_UART_H
+
+/* XXX: This should be pushed into the model data.  */
+#define BFIN_MMR_UART_SIZE     0x30
+
+struct bfin_uart;
+bu16 bfin_uart_get_next_byte (struct hw *, bu16, bool *fresh);
+bu16 bfin_uart_write_byte (struct hw *, bu16);
+bu16 bfin_uart_get_status (struct hw *);
+unsigned bfin_uart_write_buffer (struct hw *, const unsigned char *, unsigned);
+unsigned bfin_uart_read_buffer (struct hw *, unsigned char *, unsigned);
+void bfin_uart_reschedule (struct hw *);
+
+/* UART_LCR */
+#define DLAB (1 << 7)
+
+/* UART_LSR */
+#define TEMT (1 << 6)
+#define THRE (1 << 5)
+#define DR (1 << 0)
+
+/* UART_IER */
+#define ERBFI (1 << 0)
+#define ETBEI (1 << 1)
+#define ELSI  (1 << 2)
+
+#endif