LXR coreboot/src/console/printk.c

   1/*
   2 *  blantantly copied from linux/kernel/printk.c
   3 *
   4 *  Copyright (C) 1991, 1992  Linus Torvalds
   5 *
   6 */
   7
   8#include <smp/spinlock.h>
   9#include <console/vtxprintf.h>
  10#include <console/console.h>
  11
  12int console_loglevel = CONFIG_DEFAULT_CONSOLE_LOGLEVEL;
  13int default_console_loglevel = CONFIG_DEFAULT_CONSOLE_LOGLEVEL;
  14
  15DECLARE_SPIN_LOCK(console_lock)
  16
  17int do_printk(int msg_level, const char *fmt, ...)
  18{
  19        va_list args;
  20        int i;
  21
  22        if (msg_level > console_loglevel) {
  23                return 0;
  24        }
  25
  26        spin_lock(&console_lock);
  27
  28        va_start(args, fmt);
  29        i = vtxprintf(console_tx_byte, fmt, args);
  30        va_end(args);
  31
  32        console_tx_flush();
  33
  34        spin_unlock(&console_lock);
  35
  36        return i;
  37}
  38