94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of
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* the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/early_variables.h>
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#include <commonlib/helpers.h>
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#include <console/console.h>
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#include <console/uart.h>
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#include <console/streams.h>
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#include <device/pci.h>
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#include <option.h>
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#include <version.h>
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/* Mutable console log level only allowed when RAM comes online. */
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#define CONSOLE_LEVEL_CONST !ENV_STAGE_HAS_DATA_SECTION
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static int console_inited CAR_GLOBAL;
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static int console_loglevel = CONFIG_DEFAULT_CONSOLE_LOGLEVEL;
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static inline int get_log_level(void)
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{
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if (car_get_var(console_inited) == 0)
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return -1;
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if (CONSOLE_LEVEL_CONST)
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return get_console_loglevel();
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return console_loglevel;
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}
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static inline void set_log_level(int new_level)
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{
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if (CONSOLE_LEVEL_CONST)
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return;
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console_loglevel = new_level;
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}
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static void init_log_level(void)
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{
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int debug_level = get_console_loglevel();
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if (CONSOLE_LEVEL_CONST)
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return;
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get_option(&debug_level, "debug_level");
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set_log_level(debug_level);
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}
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int console_log_level(int msg_level)
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{
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int log_level = get_log_level();
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if (log_level < 0)
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return CONSOLE_LOG_NONE;
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if (msg_level <= log_level)
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return CONSOLE_LOG_ALL;
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if (CONFIG(CONSOLE_CBMEM) && (msg_level <= BIOS_DEBUG))
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return CONSOLE_LOG_FAST;
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return 0;
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}
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asmlinkage void console_init(void)
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{
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init_log_level();
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if (CONFIG(DEBUG_CONSOLE_INIT))
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car_set_var(console_inited, 1);
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if (CONFIG(EARLY_PCI_BRIDGE) && !ENV_SMM && !ENV_RAMSTAGE)
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pci_early_bridge_init();
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console_hw_init();
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car_set_var(console_inited, 1);
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printk(BIOS_NOTICE, "\n\ncoreboot-%s%s %s " ENV_STRING " starting (log level: %i)...\n",
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coreboot_version, coreboot_extra_version, coreboot_build,
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get_log_level());
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}
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