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| -rw-r--r-- | sys/include/sys/driver.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/sys/include/sys/driver.h b/sys/include/sys/driver.h new file mode 100644 index 0000000..b9fde14 --- /dev/null +++ b/sys/include/sys/driver.h @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SYS_DRIVER_H_ +#define _SYS_DRIVER_H_ + +#include <sys/cdefs.h> + +#if defined(_KERNEL) + +struct driver { + int(*init)(void); +}; + +extern char __drivers_init_start[]; +extern char __drivers_init_end[]; + +#define DRIVER_EXPORT(INIT) \ + __attribute__((used, section(".drivers"))) \ + static struct driver __driver_desc = { \ + .init = INIT, \ + } + +#define DRIVERS_INIT() \ + for (struct driver *__d = (struct driver *)__drivers_init_start; \ + (uintptr_t)__d < (uintptr_t)__drivers_init_end; ++__d) \ + { \ + __d->init(); \ + } +#endif /* _KERNEL */ +#endif /* !_SYS_DRIVER_H_ */ + |