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/******************************************************************************
* Copyright (c) 2007, 2012, 2013 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
/*
* All functions concerning interface to slof
*/
#include <stdio.h>
#include <string.h>
#include <cpu.h>
#include "helpers.h"
#include "paflof.h"
#include "../lib/libnet/time.h" /* TODO: Get rid of old timer code */
/**
* get msec-timer value
* access to HW register
* overrun will occur if boot exceeds 1.193 hours (49 days)
*
* @param -
* @return actual timer value in ms as 32bit
*/
uint32_t SLOF_GetTimer(void)
{
forth_eval("get-msecs");
return (uint32_t) forth_pop();
}
void SLOF_msleep(uint32_t time)
{
time = SLOF_GetTimer() + time;
while (time > SLOF_GetTimer())
cpu_relax();
}
void SLOF_usleep(uint32_t time)
{
forth_push(time);
forth_eval("us");
}
static unsigned int dest_timer;
void set_timer(int val)
{
dest_timer = SLOF_GetTimer() + val;
}
int get_timer()
{
return dest_timer - SLOF_GetTimer();
}
int get_sec_ticks(void)
{
return 1000; /* number of ticks in 1 second */
}
void *SLOF_dma_alloc(long size)
{
forth_push(size);
forth_eval("dma-alloc");
return (void *)forth_pop();
}
void SLOF_dma_free(void *virt, long size)
{
forth_push((long)virt);
forth_push(size);
forth_eval("dma-free");
}
void *SLOF_alloc_mem(long size)
{
forth_push(size);
forth_eval("alloc-mem");
return (void *)forth_pop();
}
void *SLOF_alloc_mem_aligned(long size, long align)
{
unsigned long addr = (unsigned long)SLOF_alloc_mem(size);
if (addr % align) {
SLOF_free_mem((void *)addr, size);
addr = (unsigned long)SLOF_alloc_mem(size + align - 1);
addr = addr + align - 1;
addr = addr & ~(align - 1);
}
return (void *)addr;
}
void SLOF_free_mem(void *addr, long size)
{
forth_push((long)addr);
forth_push(size);
forth_eval("free-mem");
}
long SLOF_dma_map_in(void *virt, long size, int cacheable)
{
forth_push((long)virt);
forth_push(size);
forth_push(cacheable);
forth_eval("dma-map-in");
return forth_pop();
}
void SLOF_dma_map_out(long phys, void *virt, long size)
{
forth_push((long)virt);
forth_push((long)phys);
forth_push(size);
forth_eval("dma-map-out");
}
long SLOF_pci_config_read32(long offset)
{
forth_push(offset);
forth_eval("config-l@");
return forth_pop();
}
long SLOF_pci_config_read16(long offset)
{
forth_push(offset);
forth_eval("config-w@");
return forth_pop();
}
long SLOF_pci_config_read8(long offset)
{
forth_push(offset);
forth_eval("config-b@");
return forth_pop();
}
void SLOF_pci_config_write32(long offset, long value)
{
forth_push(value);
forth_push(offset);
forth_eval("config-l!");
}
void SLOF_pci_config_write16(long offset, long value)
{
forth_push(value);
forth_push(offset);
forth_eval("config-w!");
}
void SLOF_pci_config_write8(long offset, long value)
{
forth_push(value);
forth_push(offset);
forth_eval("config-b!");
}
void *SLOF_translate_my_address(void *addr)
{
forth_push((long)addr);
forth_eval("translate-my-address");
return (void *)forth_pop();
}
int write_mm_log(char *data, unsigned int len, unsigned short type)
{
forth_push((unsigned long)data);
forth_push(len);
forth_push(type);
return forth_eval_pop("write-mm-log");
}
void SLOF_set_chosen_int(const char *s, long val)
{
forth_push(val);
forth_eval("encode-int");
forth_push((unsigned long)s);
forth_push(strlen(s));
forth_eval("set-chosen");
}
void SLOF_set_chosen_bytes(const char *s, const char *addr, size_t size)
{
forth_push((unsigned long)addr);
forth_push(size);
forth_eval("encode-bytes");
forth_push((unsigned long)s);
forth_push(strlen(s));
forth_eval("set-chosen");
}
void SLOF_encode_bootp_response(void *addr, size_t size)
{
SLOF_set_chosen_bytes("bootp-response", addr, size);
}
void SLOF_encode_dhcp_response(void *addr, size_t size)
{
SLOF_set_chosen_bytes("dhcp-response", addr, size);
}
int SLOF_get_property(const char *node, const char *propname,
char **addr, int *len)
{
forth_push((unsigned long)propname);
forth_push(strlen(propname));
forth_push((unsigned long)node);
forth_push(strlen(node));
forth_eval("find-node get-property");
if (forth_pop())
return -1;
*len = forth_pop();
*addr = (char *)forth_pop();
return 0;
}
int SLOF_get_keystroke(void)
{
forth_eval("key");
return forth_pop();
}
void SLOF_reset(void)
{
forth_eval("reset-all");
}
unsigned long SLOF_get_vtpm_unit(void)
{
forth_eval("vtpm-unit");
return forth_pop();
}
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