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/* Copyright 2019 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 <string.h>
#include <assert.h>
#include "hwunit.h"
#define MAX_HW_UNITS 1024
#define MAX_BACKENDS 16
static const struct hw_unit_info *g_hw_unit[MAX_BACKENDS][MAX_HW_UNITS];
static int g_hw_unit_count[MAX_BACKENDS];
void pdbg_hwunit_register(enum pdbg_backend backend, const struct hw_unit_info *hw_unit)
{
assert(g_hw_unit_count[backend] < MAX_HW_UNITS);
g_hw_unit[backend][g_hw_unit_count[backend]] = hw_unit;
g_hw_unit_count[backend]++;
}
static const struct hw_unit_info *find_driver(enum pdbg_backend backend,
const char *compat)
{
const struct hw_unit_info *p;
struct pdbg_target *target;
int i;
for (i = 0; i < g_hw_unit_count[backend]; i++) {
p = g_hw_unit[backend][i];
target = p->hw_unit;
if (!strcmp(target->compatible, compat))
return p;
}
return NULL;
}
static const struct hw_unit_info *find_compatible(enum pdbg_backend backend,
const char *compat_list,
uint32_t len)
{
const struct hw_unit_info *p;
uint32_t i;
i = 0;
while (i < len) {
p = find_driver(backend, &compat_list[i]);
if (p)
return p;
i += strlen(&compat_list[i]) + 1;
}
return NULL;
}
const struct hw_unit_info *pdbg_hwunit_find_compatible(const char *compat_list,
uint32_t len)
{
const struct hw_unit_info *p;
p = find_compatible(pdbg_get_backend(), compat_list, len);
if (!p)
p = find_compatible(PDBG_DEFAULT_BACKEND, compat_list, len);
return p;
}
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