sim/bfin/dv-bfin_uart.h

   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 TEMT (1 << 6)
  41 #define THRE (1 << 5)
  42 #define DR (1 << 0)
  43
  44 /* UART_IER */
  45 #define ERBFI (1 << 0)
  46 #define ETBEI (1 << 1)
  47 #define ELSI  (1 << 2)
  48
  49 #endif