74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
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/* ipi_console_send.c - Console messages to another processor */
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/*
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* Copyright (c) 2015 Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <nanokernel.h>
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#include <misc/printk.h>
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#include <ipi.h>
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#include <console/ipi_console.h>
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static struct device *ipi_console_device;
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static int consoleOut(int character)
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{
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/* We just stash the character into the id field and don't supply
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* any extra data */
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ipi_send(ipi_console_device, 1, character, NULL, 0);
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return character;
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}
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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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int ipi_console_sender_init(struct device *d)
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{
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struct ipi_console_sender_config_info *config_info;
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config_info = d->config->config_info;
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ipi_console_device = device_get_binding(config_info->bind_to);
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if (!ipi_console_device) {
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printk("unable to bind IPI console sender to '%s'\n",
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config_info->bind_to);
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return DEV_INVALID_CONF;
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}
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if (config_info->flags & IPI_CONSOLE_STDOUT) {
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__stdout_hook_install(consoleOut);
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}
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if (config_info->flags & IPI_CONSOLE_PRINTK) {
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__printk_hook_install(consoleOut);
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}
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return DEV_OK;
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}
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