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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* This file contains the code to do simple memory and io accesses.
*/
/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <rtems.h>
#include <bsp.h>
#include <bsp/pci.h>
#include <bsp/irq.h>
#include <rtems/bspIo.h>
#include <rtems/endian.h>
// #define DEBUG_ACCESSES 1
#ifdef DEBUG_ACCESSES
#define JPRINTK(fmt, ...) printk("%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
#else
#define JPRINTK(fmt, ...)
#endif
/*
* * Simple accesses
* */
void simple_out_32(uint32_t base, uint32_t addr, uint32_t val)
{
volatile uint32_t *ptr;
ptr = (volatile uint32_t *) (base + addr);
*ptr = val;
JPRINTK( "%p data: 0x%x\n", ptr, val);
}
void simple_out_le32(uint32_t base, uint32_t addr, uint32_t val)
{
volatile uint32_t *ptr;
uint32_t data = 0;
ptr = (volatile uint32_t *) (base + addr);
rtems_uint32_to_little_endian( val, (uint8_t *) &data);
*ptr = data;
JPRINTK( "%p data: 0x%x\n", ptr, data);
}
uint8_t simple_in_8( uint32_t base, uint32_t addr ) {
volatile uint8_t *ptr;
uint8_t val;
ptr = (volatile uint8_t *) (base + addr);
val = *ptr;
JPRINTK( "0x%x data: 0x%x\n", ptr, val);
return val;
}
int16_t simple_in_le16( uint32_t base, uint32_t addr ) {
volatile uint16_t *ptr;
uint16_t val;
uint16_t rval;
ptr = (volatile uint16_t *) (base + addr);
val = *ptr;
rval = rtems_uint16_from_little_endian( (uint8_t *) &val);
JPRINTK( "0x%x data: 0x%x raw: 0x%x\n", ptr, rval, val);
return rval;
}
int16_t simple_in_16( uint32_t base, uint32_t addr ) {
volatile uint16_t *ptr;
uint16_t val;
ptr = (volatile uint16_t *) (base + addr);
val = *ptr;
JPRINTK( "0x%x data: 0x%x raw: 0x%x\n", ptr, val, val);
return val;
}
uint32_t simple_in_le32( uint32_t base, uint32_t addr ) {
volatile uint32_t *ptr;
uint32_t val;
uint32_t rval;
ptr = (volatile uint32_t *) (base + addr);
val = *ptr;
rval = rtems_uint32_from_little_endian( (uint8_t *) &val);
JPRINTK( "0x%x data: 0x%x raw: 0x%x\n", ptr, rval, val);
return rval;
}
uint32_t simple_in_32( uint32_t base, uint32_t addr ) {
volatile uint32_t *ptr;
uint32_t val;
ptr = (volatile uint32_t *) (base + addr);
val = *ptr;
JPRINTK( "0x%x data: 0x%x raw: 0x%x\n", ptr, val, val);
return val;
}
void simple_out_8( uint32_t base, uint32_t addr, uint8_t val ) {
volatile uint8_t *ptr;
ptr = (volatile uint8_t *) (base | addr);
JPRINTK( "0x%x data: 0x%x\n", ptr, val);
*ptr = val;
}
void simple_out_le16( uint32_t base, uint32_t addr, uint16_t val ) {
volatile uint16_t *ptr;
uint16_t data;
ptr = (volatile uint16_t *) (base + addr);
rtems_uint16_to_little_endian( val, (uint8_t *) &data);
*ptr = data;
JPRINTK( "0x%x data: 0x%x\n", ptr, data);
}
void simple_out_16( uint32_t base, uint32_t addr, uint16_t val ) {
volatile uint16_t *ptr;
ptr = (volatile uint16_t *) (base + addr);
*ptr = val;
JPRINTK( "0x%x data: 0x%x\n", ptr, val);
}
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