58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/* ipm_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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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <errno.h>
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#include <kernel.h>
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#include <misc/printk.h>
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#include <ipm.h>
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#include <console/ipm_console.h>
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static struct device *ipm_console_device;
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static int consoleOut(int character)
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{
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if (character == '\r') {
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return character;
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}
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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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*/
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ipm_send(ipm_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 ipm_console_sender_init(struct device *d)
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{
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const struct ipm_console_sender_config_info *config_info;
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config_info = d->config->config_info;
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ipm_console_device = device_get_binding(config_info->bind_to);
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if (!ipm_console_device) {
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printk("unable to bind IPM console sender to '%s'\n",
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config_info->bind_to);
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return -EINVAL;
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}
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if (config_info->flags & IPM_CONSOLE_STDOUT) {
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__stdout_hook_install(consoleOut);
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}
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if (config_info->flags & IPM_CONSOLE_PRINTK) {
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__printk_hook_install(consoleOut);
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}
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return 0;
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}
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