diff options
| -rw-r--r-- | src/lib/libc/src/l5/iotap.c | 41 | ||||
| -rw-r--r-- | src/sys/include/sys/iotap.h | 13 |
2 files changed, 54 insertions, 0 deletions
diff --git a/src/lib/libc/src/l5/iotap.c b/src/lib/libc/src/l5/iotap.c new file mode 100644 index 0000000..4b13df3 --- /dev/null +++ b/src/lib/libc/src/l5/iotap.c @@ -0,0 +1,41 @@ +/* + * Copyright (c) 2025 Ian Marco Moffett and L5 engineers + * 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 the project 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. + */ + +#include <sys/syscall.h> +#include <sys/iotap.h> + +ssize_t +iotap_mux(const char *name, struct iotap_msg *msg) +{ + return syscall( + SYS_muxtap, + (uintptr_t)name, + (uintptr_t)msg + ); +} diff --git a/src/sys/include/sys/iotap.h b/src/sys/include/sys/iotap.h index 10e4f82..59d8225 100644 --- a/src/sys/include/sys/iotap.h +++ b/src/sys/include/sys/iotap.h @@ -55,4 +55,17 @@ struct __packed iotap_msg { size_t len; }; +#if !defined(_KERNEL) + +/* + * Perform an operation on a named I/O tap + * + * @name: Name of I/O tap + * @msg: Message to send + * + * Returns a less than zero value on error + */ +ssize_t iotap_mux(const char *name, struct iotap_msg *msg); + +#endif /* !_KERNEL */ #endif /* _SYS_IOTAP_H_ */ |