diff options
| author | Ian Moffett <ian@osmora.org> | 2024-01-17 20:59:53 -0500 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2024-01-17 20:59:53 -0500 |
| commit | 469f601e210a74bb08408be894c9ec84701d6715 (patch) | |
| tree | 41e8b517fceddbf581ac2333a82bb39f21899647 /sys/include | |
| parent | 09f3fd474c0175170c177cdcb372034eda86c70f (diff) | |
kernel: Add serial logging support
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/include')
| -rw-r--r-- | sys/include/arch/amd64/uart.h | 40 | ||||
| -rw-r--r-- | sys/include/sys/machdep.h | 1 |
2 files changed, 41 insertions, 0 deletions
diff --git a/sys/include/arch/amd64/uart.h b/sys/include/arch/amd64/uart.h new file mode 100644 index 0000000..a49e626 --- /dev/null +++ b/sys/include/arch/amd64/uart.h @@ -0,0 +1,40 @@ +/* + * 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. + */ + +/* UART 8250 init logic */ + +#ifndef _UART_H_ +#define _UART_H_ + +#include <sys/types.h> + +int uart8250_try_init(void); +void uart8250_write(char byte); + +#endif diff --git a/sys/include/sys/machdep.h b/sys/include/sys/machdep.h index f494f73..5964369 100644 --- a/sys/include/sys/machdep.h +++ b/sys/include/sys/machdep.h @@ -38,6 +38,7 @@ __weak void processor_init(void); __weak void pre_init(void); __weak void processor_halt(void); +__weak void serial_dbgch(char c); #endif /* defined(_KERNEL) */ #endif /* !_SYS_MACHDEP_H_ */ |