95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2020 by William Wilgus
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "action.h"
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#include "core_alloc.h"
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#include "core_keymap.h"
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/*#define LOGF_ENABLE*/
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#include "logf.h"
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#if !defined(__PCTOOL__) || defined(CHECKWPS)
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int core_set_keyremap(struct button_mapping* core_keymap, int count)
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{
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return action_set_keymap(core_keymap, count);
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}
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static int open_key_remap(const char *filename, int *countp)
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{
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int fd = open(filename, O_RDONLY);
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if (fd < 0)
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return fd;
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size_t fsize = filesize(fd);
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int count = fsize / sizeof(struct button_mapping);
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if (count == 0 || (size_t)(count * sizeof(struct button_mapping)) != fsize)
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{
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logf("core_keyremap: bad filesize %d / %lu", count, (unsigned long)fsize);
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goto error;
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}
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struct button_mapping header;
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if(read(fd, &header, sizeof(header)) != (ssize_t)sizeof(header))
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{
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logf("core_keyremap: read error");
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goto error;
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}
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if (header.action_code != KEYREMAP_VERSION ||
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header.button_code != KEYREMAP_HEADERID ||
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header.pre_button_code != count)
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{
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logf("core_keyremap: bad header %d", count);
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goto error;
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}
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*countp = count - 1;
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return fd;
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error:
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close(fd);
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return -1;
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}
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int core_load_key_remap(const char *filename)
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{
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int count = 0; /* gcc falsely believes this may be used uninitialized */
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int fd = open_key_remap(filename, &count);
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if (fd < 0)
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return -1;
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size_t bufsize = count * sizeof(struct button_mapping);
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int handle = core_alloc(bufsize);
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if (handle > 0)
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{
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void *data = core_get_data_pinned(handle);
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if (read(fd, data, bufsize) == (ssize_t)bufsize)
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count = action_set_keymap_handle(handle, count);
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core_put_data_pinned(data);
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}
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close(fd);
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return count;
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}
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#endif /* !defined(__PCTOOL__) */
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