drivers/tty/serial/timbuart.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * timbuart.c timberdale FPGA GPIO driver
   4  * Copyright (c) 2009 Intel Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20 /* Supports:
  21  * Timberdale FPGA UART
  22  */
  23
  24 #ifndef _TIMBUART_H
  25 #define _TIMBUART_H
  26
  27 #define TIMBUART_FIFO_SIZE      2048
  28
  29 #define TIMBUART_RXFIFO         0x08
  30 #define TIMBUART_TXFIFO         0x0c
  31 #define TIMBUART_IER            0x10
  32 #define TIMBUART_IPR            0x14
  33 #define TIMBUART_ISR            0x18
  34 #define TIMBUART_CTRL           0x1c
  35 #define TIMBUART_BAUDRATE       0x20
  36
  37 #define TIMBUART_CTRL_RTS       0x01
  38 #define TIMBUART_CTRL_CTS       0x02
  39 #define TIMBUART_CTRL_FLSHTX    0x40
  40 #define TIMBUART_CTRL_FLSHRX    0x80
  41
  42 #define TXBF            0x01
  43 #define TXBAE           0x02
  44 #define CTS_DELTA       0x04
  45 #define RXDP            0x08
  46 #define RXBAF           0x10
  47 #define RXBF            0x20
  48 #define RXTT            0x40
  49 #define RXBNAE          0x80
  50 #define TXBE            0x100
  51
  52 #define RXFLAGS (RXDP | RXBAF | RXBF | RXTT | RXBNAE)
  53 #define TXFLAGS (TXBF | TXBAE)
  54
  55 #define TIMBUART_MAJOR 204
  56 #define TIMBUART_MINOR 192
  57
  58 #endif /* _TIMBUART_H */
  59