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73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/*
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Copyright 2023, The Regents of the University of California.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ''AS
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IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE REGENTS OF THE UNIVERSITY OF CALIFORNIA OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are those
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of the authors and should not be interpreted as representing official policies,
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either expressed or implied, of The Regents of the University of California.
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*/
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#include "mqnic.h"
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#include <stdio.h>
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#include <stdlib.h>
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struct mqnic_res *mqnic_res_open(unsigned int count, volatile uint8_t *base, unsigned int stride)
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{
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struct mqnic_res *res = calloc(1, sizeof(struct mqnic_res));
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if (!res)
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return NULL;
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res->count = count;
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res->base = base;
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res->stride = stride;
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return res;
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}
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void mqnic_res_close(struct mqnic_res *res)
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{
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if (!res)
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return;
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free(res);
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}
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unsigned int mqnic_res_get_count(struct mqnic_res *res)
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{
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return res->count;
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}
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volatile uint8_t *mqnic_res_get_addr(struct mqnic_res *res, int index)
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{
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if (index < 0 || index >= res->count)
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return NULL;
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return res->base + index * res->stride;
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}
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