current_source_dc.h

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/*
 * Copyright (c) 2017 The University of Manchester
 *
 * 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
 *
 *     https://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.
 */
 
#ifndef _CURRENT_SOURCE_DC_H_
#define _CURRENT_SOURCE_DC_H_
 
typedef struct dc_source_t {
    REAL amplitude;
    uint32_t start;
    uint32_t stop;
} dc_source_t;
 
static dc_source_t **dc_source;
 
static bool current_source_dc_init(uint32_t n_dc_sources, uint32_t *next) {
    dc_source = spin1_malloc(n_dc_sources * sizeof(uint32_t*));
    for (uint32_t n_dc=0; n_dc < n_dc_sources; n_dc++) {
        dc_source[n_dc] = spin1_malloc(sizeof(dc_source_t));
        if (dc_source[n_dc] == NULL) {
            log_error("Unable to allocate DC source parameters - out of DTCM");
            return false;
        }
        *next += sizeof(dc_source_t) / 4;
    }
    return true;
}
 
static bool current_source_dc_load_parameters(
        address_t cs_address, uint32_t n_dc_sources, uint32_t *next) {
    for (uint32_t n_dc=0; n_dc < n_dc_sources; n_dc++) {
        spin1_memcpy(dc_source[n_dc], &cs_address[*next], sizeof(dc_source_t));
        *next += sizeof(dc_source_t) / 4;
    }
    return true;
}
 
static REAL current_source_dc_get_offset(uint32_t cs_index, uint32_t time) {
    if ((time >= dc_source[cs_index]->start) && (time < dc_source[cs_index]->stop)) {
        return dc_source[cs_index]->amplitude;
    }
    return ZERO;
}
 
#endif // _CURRENT_SOURCE_DC_H_