/* * blatantly copied from linux/kernel/printk.c * * Copyright (C) 1991, 1992 Linus Torvalds * */ #include <stddef.h> #include <smp/node.h> #include <smp/spinlock.h> #include <console/vtxprintf.h> #include <console/console.h> #include <console/streams.h> #include <trace.h> DECLARE_SPIN_LOCK(console_lock) void do_putchar(unsigned char byte) { if (byte == '\n') console_tx_byte('\r'); console_tx_byte(byte); } static void wrap_putchar(unsigned char byte, void *data) { do_putchar(byte); } 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(wrap_putchar, fmt, args, NULL); 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(wrap_putchar, fmt, args, NULL); console_tx_flush(); } #endif