drivers/tty/serial/timbuart.h

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