1 /* Blackfin Universal Asynchronous Receiver/Transmitter (UART) model. 2 For "old style" UARTs on BF53x/etc... parts. 3 4 Copyright (C) 2010-2011 Free Software Foundation, Inc. 5 Contributed by Analog Devices, Inc. 6 7 This file is part of simulators. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22 #ifndef DV_BFIN_UART_H 23 #define DV_BFIN_UART_H 24 25 /* XXX: This should be pushed into the model data. */ 26 #define BFIN_MMR_UART_SIZE 0x30 27 28 struct bfin_uart; 29 bu16 bfin_uart_get_next_byte (struct hw *, bu16, bool *fresh); 30 bu16 bfin_uart_write_byte (struct hw *, bu16); 31 bu16 bfin_uart_get_status (struct hw *); 32 unsigned bfin_uart_write_buffer (struct hw *, const unsigned char *, unsigned); 33 unsigned bfin_uart_read_buffer (struct hw *, unsigned char *, unsigned); 34 void bfin_uart_reschedule (struct hw *); 35 36 /* UART_LCR */ 37 #define DLAB (1 << 7) 38 39 /* UART_LSR */ 40 #define TFI (1 << 7) 41 #define TEMT (1 << 6) 42 #define THRE (1 << 5) 43 #define BI (1 << 4) 44 #define FE (1 << 3) 45 #define PE (1 << 2) 46 #define OE (1 << 1) 47 #define DR (1 << 0) 48 49 /* UART_IER */ 50 #define ERBFI (1 << 0) 51 #define ETBEI (1 << 1) 52 #define ELSI (1 << 2) 53 54 #endif 55