1 /* Blackfin Universal Asynchronous Receiver/Transmitter (UART) model. 2 For "old style" UARTs on BF53x/etc... parts. 3 4 Copyright (C) 2010-2024 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 struct bfin_uart; 26 bu16 bfin_uart_get_next_byte (struct hw *, bu16, bu16, bool *fresh); 27 bu16 bfin_uart_write_byte (struct hw *, bu16, bu16); 28 bu16 bfin_uart_get_status (struct hw *); 29 unsigned bfin_uart_write_buffer (struct hw *, const unsigned char *, unsigned); 30 unsigned bfin_uart_read_buffer (struct hw *, unsigned char *, unsigned); 31 void bfin_uart_reschedule (struct hw *); 32 33 /* UART_LCR */ 34 #define DLAB (1 << 7) 35 36 /* UART_LSR */ 37 #define TFI (1 << 7) 38 #define TEMT (1 << 6) 39 #define THRE (1 << 5) 40 #define BI (1 << 4) 41 #define FE (1 << 3) 42 #define PE (1 << 2) 43 #define OE (1 << 1) 44 #define DR (1 << 0) 45 46 /* UART_IER */ 47 #define ERBFI (1 << 0) 48 #define ETBEI (1 << 1) 49 #define ELSI (1 << 2) 50 51 /* UART_MCR */ 52 #define XOFF (1 << 0) 53 #define MRTS (1 << 1) 54 #define RFIT (1 << 2) 55 #define RFRT (1 << 3) 56 #define LOOP_ENA (1 << 4) 57 #define FCPOL (1 << 5) 58 #define ARTS (1 << 6) 59 #define ACTS (1 << 7) 60 61 #endif 62