diff options
author | Amaan Cheval <amaan.cheval@gmail.com> | 2018-07-09 16:42:56 +0530 |
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committer | Joel Sherrill <joel@rtems.org> | 2018-07-11 15:22:44 -0500 |
commit | 76c03152e110dcb770253b54277811228e8f78df (patch) | |
tree | 961fe157e59b137d932c4feb7d275b6157f99da0 /bsps/x86_64/amd64/console | |
parent | bsp/riscv: Add console support for NS16550 devices (diff) | |
download | rtems-76c03152e110dcb770253b54277811228e8f78df.tar.bz2 |
bsp/x86_64: Minimal bootable BSP
Current state:
- Basic context initialization and switching code.
- Stubbed console (empty functions).
- Mostly functional linker script (may need tweaks if we ever want to move
away from the large code model (see: CPU_CFLAGS).
- Fully functional boot, by using FreeBSD's bootloader to load RTEMS's ELF for
UEFI-awareness.
In short, the current state with this commit lets us boot, go through the system
initialization functions, and then call user application's Init task too.
Updates #2898.
Diffstat (limited to 'bsps/x86_64/amd64/console')
-rw-r--r-- | bsps/x86_64/amd64/console/console.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/bsps/x86_64/amd64/console/console.c b/bsps/x86_64/amd64/console/console.c new file mode 100644 index 0000000000..b272b679d7 --- /dev/null +++ b/bsps/x86_64/amd64/console/console.c @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2018. + * Amaan Cheval <amaan.cheval@gmail.com> + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <bsp.h> +#include <rtems/bspIo.h> +#include <rtems/libio.h> + +/* console_initialize + * + * This routine initializes the console IO driver. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + */ + +rtems_device_driver console_initialize( + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg +) +{ + (void) major; + (void) minor; + (void) arg; + return RTEMS_SUCCESSFUL; +} + +/* + * Open entry point + */ + +rtems_device_driver console_open( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + (void) major; + (void) minor; + (void) arg; + return RTEMS_SUCCESSFUL; +} + +/* + * Close entry point + */ + +rtems_device_driver console_close( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + (void) major; + (void) minor; + (void) arg; + return RTEMS_SUCCESSFUL; +} + +/* + * read bytes from the serial port. We only have stdin. + */ + +rtems_device_driver console_read( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + (void) major; + (void) minor; + (void) arg; + return RTEMS_SUCCESSFUL; +} + +/* + * write bytes to the serial port. Stdout and stderr are the same. + */ + +rtems_device_driver console_write( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + (void) major; + (void) minor; + (void) arg; + return 0; +} + +/* + * IO Control entry point + */ + +rtems_device_driver console_control( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + (void) major; + (void) minor; + (void) arg; + return RTEMS_SUCCESSFUL; +} + +BSP_output_char_function_type BSP_output_char = NULL; +BSP_polling_getchar_function_type BSP_poll_char = NULL; |