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/**
* @file
*
* This file contains the code to do simple memory and io accesses.
*/
/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#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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