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Diffstat (limited to 'sim/bfin/dv-bfin_uart.h')
| -rw-r--r-- | sim/bfin/dv-bfin_uart.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/sim/bfin/dv-bfin_uart.h b/sim/bfin/dv-bfin_uart.h new file mode 100644 index 00000000000..1d144d49048 --- /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 |