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/*
* This file is part of the coreboot project.
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>,
* Raptor Engineering
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* blatantly copied from linux/kernel/printk.c
*/
#include <console/cbmem_console.h>
#include <console/console.h>
#include <console/streams.h>
#include <console/vtxprintf.h>
#include <smp/spinlock.h>
#include <smp/node.h>
#include <stddef.h>
#include <trace.h>
#if (!defined(__PRE_RAM__) && CONFIG(HAVE_ROMSTAGE_CONSOLE_SPINLOCK)) || !CONFIG(HAVE_ROMSTAGE_CONSOLE_SPINLOCK)
DECLARE_SPIN_LOCK(console_lock)
#endif
void do_putchar(unsigned char byte)
{
console_tx_byte(byte);
}
static void wrap_putchar(unsigned char byte, void *data)
{
console_tx_byte(byte);
}
static void wrap_putchar_cbmemc(unsigned char byte, void *data)
{
__cbmemc_tx_byte(byte);
}
int do_vprintk(int msg_level, const char *fmt, va_list args)
{
int i, log_this;
if (CONFIG(SQUELCH_EARLY_SMP) && ENV_ROMSTAGE_OR_BEFORE && !boot_cpu())
return 0;
log_this = console_log_level(msg_level);
if (log_this < CONSOLE_LOG_FAST)
return 0;
DISABLE_TRACE;
#ifdef __PRE_RAM__
#if CONFIG(HAVE_ROMSTAGE_CONSOLE_SPINLOCK)
spin_lock(romstage_console_lock());
#endif
#else
spin_lock(&console_lock);
#endif
if (log_this == CONSOLE_LOG_FAST) {
i = vtxprintf(wrap_putchar_cbmemc, fmt, args, NULL);
} else {
i = vtxprintf(wrap_putchar, fmt, args, NULL);
console_tx_flush();
}
#ifdef __PRE_RAM__
#if CONFIG(HAVE_ROMSTAGE_CONSOLE_SPINLOCK)
spin_unlock(romstage_console_lock());
#endif
#else
spin_unlock(&console_lock);
#endif
ENABLE_TRACE;
return i;
}
int do_printk(int msg_level, const char *fmt, ...)
{
va_list args;
int i;
va_start(args, fmt);
i = do_vprintk(msg_level, fmt, args);
va_end(args);
return i;
}
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