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#ifndef CYGONCE_PLF_IO_H
#define CYGONCE_PLF_IO_H
 
//=============================================================================
//
//      plf_io.h
//
//      Platform specific IO support
//
//=============================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos 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 2 or (at your option) any later version.
//
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// 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 eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
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// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    dmoseley
// Contributors: dmoseley
// Date:         2000-08-11
// Purpose:      ASB2303 platform IO support
// Description: 
// Usage:        #include <cyg/hal/plf_io.h>
//
//####DESCRIPTIONEND####
//
//=============================================================================
 
#include <pkgconf/hal.h>
 
#ifdef __ASSEMBLER__
#define HAL_REG_8(x)              x
#define HAL_REG_16(x)             x
#define HAL_REG_32(x)             x
#else
#define HAL_REG_8(x)              (volatile cyg_uint8*)(x)
#define HAL_REG_16(x)             (volatile cyg_uint16*)(x)
#define HAL_REG_32(x)             (volatile cyg_uint32*)(x)
#endif
 
//-----------------------------------------------------------------------------
 
/* ASB GPIO Registers */
#define HAL_GPIO_BASE                           0xDB000000
 
#define HAL_GPIO_0_MODE_OFFSET                  0x0000
#define HAL_GPIO_0_IN_OFFSET                    0x0004
#define HAL_GPIO_0_OUT_OFFSET                   0x0008
#define HAL_GPIO_1_MODE_OFFSET                  0x0100
#define HAL_GPIO_1_IN_OFFSET                    0x0104
#define HAL_GPIO_1_OUT_OFFSET                   0x0108
#define HAL_GPIO_2_MODE_OFFSET                  0x0200
#define HAL_GPIO_2_IN_OFFSET                    0x0204
#define HAL_GPIO_2_OUT_OFFSET                   0x0208
#define HAL_GPIO_3_MODE_OFFSET                  0x0300
#define HAL_GPIO_3_IN_OFFSET                    0x0304
#define HAL_GPIO_3_OUT_OFFSET                   0x0308
#define HAL_GPIO_4_MODE_OFFSET                  0x0400
#define HAL_GPIO_4_IN_OFFSET                    0x0404
#define HAL_GPIO_4_OUT_OFFSET                   0x0408
#define HAL_GPIO_5_MODE_OFFSET                  0x0500
#define HAL_GPIO_5_IN_OFFSET                    0x0504
#define HAL_GPIO_5_OUT_OFFSET                   0x0508
 
#define HAL_GPIO_0_MODE                         HAL_REG_16 (HAL_GPIO_BASE + HAL_GPIO_0_MODE_OFFSET)
#define HAL_GPIO_0_IN                           HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_0_IN_OFFSET)
#define HAL_GPIO_0_OUT                          HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_0_OUT_OFFSET)
#define HAL_GPIO_1_MODE                         HAL_REG_16 (HAL_GPIO_BASE + HAL_GPIO_1_MODE_OFFSET)
#define HAL_GPIO_1_IN                           HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_1_IN_OFFSET)
#define HAL_GPIO_1_OUT                          HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_1_OUT_OFFSET)
#define HAL_GPIO_2_MODE                         HAL_REG_16 (HAL_GPIO_BASE + HAL_GPIO_2_MODE_OFFSET)
#define HAL_GPIO_2_IN                           HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_2_IN_OFFSET)
#define HAL_GPIO_2_OUT                          HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_2_OUT_OFFSET)
#define HAL_GPIO_3_MODE                         HAL_REG_16 (HAL_GPIO_BASE + HAL_GPIO_3_MODE_OFFSET)
#define HAL_GPIO_3_IN                           HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_3_IN_OFFSET)
#define HAL_GPIO_3_OUT                          HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_3_OUT_OFFSET)
#define HAL_GPIO_4_MODE                         HAL_REG_16 (HAL_GPIO_BASE + HAL_GPIO_4_MODE_OFFSET)
#define HAL_GPIO_4_IN                           HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_4_IN_OFFSET)
#define HAL_GPIO_4_OUT                          HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_4_OUT_OFFSET)
#define HAL_GPIO_5_MODE                         HAL_REG_16 (HAL_GPIO_BASE + HAL_GPIO_5_MODE_OFFSET)
#define HAL_GPIO_5_IN                           HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_5_IN_OFFSET)
#define HAL_GPIO_5_OUT                          HAL_REG_8  (HAL_GPIO_BASE + HAL_GPIO_5_OUT_OFFSET)
 
//-----------------------------------------------------------------------------
#define HAL_LED_ADDRESS                         HAL_GPIO_0_OUT
#define HAL_GPIO_MODE_ALL_OUTPUT                0x5555
 
 
#ifdef __ASSEMBLER__
 
#  include <cyg/hal/platform.inc>
#  define DEBUG_DISPLAY(hexdig)   hal_diag_led hexdig
#  define DEBUG_DELAY()                                        \
     mov	0x20000, d0;                                       \
0:	 sub    1, d0;                                             \
     bne    0b;                                                \
     nop
 
#else
 
extern cyg_uint8 led_val(CYG_WORD hexdig);
#  define DEBUG_DISPLAY(hexdig)         HAL_WRITE_UINT8(HAL_LED_ADDRESS, led_val(hexdig))
#  define DEBUG_DELAY()                                        \
   {                                                           \
     volatile int i = 0x80000;                                 \
     while (--i) ;                                             \
   }
 
#endif
 
//-----------------------------------------------------------------------------
// end of plf_io.h
#endif // CYGONCE_PLF_IO_H