coreboot-kgpe-d16/src/console/printk.c
Kyösti Mälkki b3356bbff4 console: Add printk helper for ChromeOS
Do not expose console_tx_flush() to ChromeOS as that function
is part of lower-level implementation.

Change-Id: I1e31662da88a60e83f8e5d307a4b53441c130aab
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5347
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-04-09 13:21:13 +02:00

50 lines
833 B
C

/*
* blatantly copied from linux/kernel/printk.c
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
*/
#include <smp/node.h>
#include <smp/spinlock.h>
#include <console/vtxprintf.h>
#include <console/console.h>
#include <trace.h>
DECLARE_SPIN_LOCK(console_lock)
int do_printk(int msg_level, const char *fmt, ...)
{
va_list args;
int i;
if (!console_log_level(msg_level))
return 0;
#if CONFIG_SQUELCH_EARLY_SMP && defined(__PRE_RAM__)
if (!boot_cpu())
return 0;
#endif
DISABLE_TRACE;
spin_lock(&console_lock);
va_start(args, fmt);
i = vtxprintf(console_tx_byte, fmt, args);
va_end(args);
console_tx_flush();
spin_unlock(&console_lock);
ENABLE_TRACE;
return i;
}
#if CONFIG_CHROMEOS
void do_vtxprintf(const char *fmt, va_list args)
{
vtxprintf(console_tx_byte, fmt, args);
console_tx_flush();
}
#endif