include/ns16550.h

   1 /**
   2  * @file
   3  * @brief Serial NS16550 platform specific header
   4  *
   5  * FileName: include/ns16550.h
   6  * @code struct NS16550_plat @endcode
   7  * represents The specifics of the device present in the system.
   8  */
   9 /*
  10  * (C) Copyright 2008
  11  * Texas Instruments, <www.ti.com>
  12  * Nishanth Menon <x0nishan@ti.com>
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License as
  16  * published by the Free Software Foundation; either version 2 of
  17  * the License, or (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  27  * MA 02111-1307 USA
  28  */
  29
  30 #ifndef __NS16650_PLATFORM_H_
  31 #define __NS16650_PLATFORM_H_
  32
  33 /**
  34  * @brief Platform dependent feature:
  35  * Pass pointer to this structure as part of device_d -> platform_data
  36  */
  37 struct NS16550_plat {
  38         /** Clock speed */
  39         unsigned int clock;
  40         /** Console capabilities:
  41          * CONSOLE_STDIN | CONSOLE_STDOUT | CONSOLE_STDERR @see console.h
  42          */
  43         unsigned char f_caps;
  44         /**
  45          * register read access capability
  46          */
  47         unsigned int (*reg_read) (unsigned long base, unsigned char reg_offset);
  48         /**
  49          * register write access capability
  50          */
  51         void (*reg_write) (unsigned int val, unsigned long base,
  52                                     unsigned char reg_offset);
  53 };
  54
  55 #endif                          /* __NS16650_PLATFORM_H_ */