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/* ipm_console_send.c - Console messages to another processor */
/*
* Copyright (c) 2015 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <errno.h>
#include <kernel.h>
#include <misc/printk.h>
#include <ipm.h>
#include <console/ipm_console.h>
static struct device *ipm_console_device;
static int consoleOut(int character)
{
if (character == '\r') {
return character;
}
/*
* We just stash the character into the id field and don't supply
* any extra data
*/
ipm_send(ipm_console_device, 1, character, NULL, 0);
return character;
}
extern void __printk_hook_install(int (*fn)(int));
extern void __stdout_hook_install(int (*fn)(int));
int ipm_console_sender_init(struct device *d)
{
const struct ipm_console_sender_config_info *config_info;
config_info = d->config->config_info;
ipm_console_device = device_get_binding(config_info->bind_to);
if (!ipm_console_device) {
printk("unable to bind IPM console sender to '%s'\n",
config_info->bind_to);
return -EINVAL;
}
if (config_info->flags & IPM_CONSOLE_STDOUT) {
__stdout_hook_install(consoleOut);
}
if (config_info->flags & IPM_CONSOLE_PRINTK) {
__printk_hook_install(consoleOut);
}
return 0;
}
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