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/* Copyright 2016 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <stdio.h>
#include "bitutils.h"
#include "backend.h"
#include "operations.h"
struct scom_backend *backend = NULL;
#define FSI_SET_PIB_RESET_REG 0x1007
#define FSI_SET_PIB_RESET PPC_BIT32(0)
int backend_init(int processor_id)
{
backend = fsi_init();
if (!backend)
return -1;
backend->processor_id = processor_id;
/* Make sure the FSI2PIB engine is in a good state */
if (putcfam(FSI_SET_PIB_RESET, FSI_SET_PIB_RESET_REG))
return -1;
return 0;
}
void backend_set_processor(int processor_id)
{
backend->processor_id = processor_id;
}
void backend_destroy(void)
{
if (!backend || backend->destroy)
backend->destroy(backend);
}
int getscom(uint64_t *value, uint32_t addr)
{
if (!backend || !backend->getscom) {
PR_ERROR("Backend does not support %s\n", __FUNCTION__);
return -1;
}
return backend->getscom(backend, backend->processor_id, value, addr);
}
int putscom(uint64_t value, uint32_t addr)
{
if (!backend || !backend->getscom) {
PR_ERROR("Backend does not support %s\n", __FUNCTION__);
return -1;
}
return backend->putscom(backend, backend->processor_id, value, addr);
}
int getcfam(uint32_t *value, uint32_t addr)
{
if (!backend || !backend->getscom) {
PR_ERROR("Backend does not support %s\n", __FUNCTION__);
return -1;
}
return backend->getcfam(backend, backend->processor_id, value, addr);
}
int putcfam(uint32_t value, uint32_t addr)
{
if (!backend || !backend->putscom) {
PR_ERROR("Backend does not support %s\n", __FUNCTION__);
return -1;
}
return backend->putcfam(backend, backend->processor_id, value, addr);
}
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