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https://github.com/zephyrproject-rtos/zephyr
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57f2741e4f
Put initialization priorities as device driver Kconfig parameter. Initialization priority value for each platform is defined in the platform Kconfig file. Drivers and platform code use SYS_DEFINE_DEVICE to add and initialization function. Change-Id: I2f4f3c7370dac02408a1b50a0a1bade8b427a282 Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com> Signed-off-by: Anas Nashif <anas.nashif@intel.com>
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/* ram_console.c - Console messages to a RAM buffer */
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/*
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* Copyright (c) 2015 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <nanokernel.h>
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#include <misc/printk.h>
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#include <device.h>
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#include <init.h>
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extern void __printk_hook_install(int (*fn)(int));
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extern void __stdout_hook_install(int (*fn)(int));
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/* Extra byte to ensure we're always NULL-terminated */
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char ram_console[CONFIG_RAM_CONSOLE_BUFFER_SIZE + 1];
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static int pos;
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static int ram_console_out(int character)
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{
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ram_console[pos] = (char)character;
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pos = (pos + 1) % CONFIG_RAM_CONSOLE_BUFFER_SIZE;
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return character;
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}
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static int ram_console_init(struct device *d)
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{
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ARG_UNUSED(d);
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__printk_hook_install(ram_console_out);
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__stdout_hook_install(ram_console_out);
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return DEV_OK;
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}
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DECLARE_DEVICE_INIT_CONFIG(ram_console, "", ram_console_init, NULL);
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SYS_DEFINE_DEVICE(ram_console, NULL, PRIMARY, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
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