53119fdeab
It might be that you want an early console in romstage before RAM is up, but you can't or don't want to support the console all the way back in the bootblock. By making the console in those two different environments configurable seperately that becomes possible. On the 5250 console output as early as the bootblock works, but on the 5420 it only starts working in the ROM stage after clocks have been initialized. BUG=chrome-os-partner:19420 TEST=Built and booted on pit with another change and an external tool, and was able to get serial output. Built for snow. BRANCH=None Change-Id: Ie27ae7a7b22f336d23893618969efde4145fefd7 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/57725 Reviewed-by: Stefan Reinauer <reinauer@google.com> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org>
242 lines
10 KiB
C
242 lines
10 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2003 Eric Biederman
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef CONSOLE_CONSOLE_H_
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#define CONSOLE_CONSOLE_H_
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#include <stdint.h>
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#include <console/loglevel.h>
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#include <console/post_codes.h>
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#if CONFIG_CONSOLE_SERIAL
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#include <uart.h>
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#endif
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#if CONFIG_USBDEBUG
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#include <usbdebug.h>
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#endif
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#if CONFIG_CONSOLE_NE2K
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#include <console/ne2k.h>
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#endif
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#if CONFIG_CONSOLE_CBMEM
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#include <console/cbmem_console.h>
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#endif
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#ifndef __PRE_RAM__
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unsigned char console_rx_byte(void);
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int console_tst_byte(void);
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struct console_driver {
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void (*init)(void);
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void (*tx_byte)(unsigned char byte);
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void (*tx_flush)(void);
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unsigned char (*rx_byte)(void);
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int (*tst_byte)(void);
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};
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#define __console __attribute__((used, __section__ (".rodata.console_drivers")))
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/* Defined by the linker... */
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extern struct console_driver console_drivers[];
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extern struct console_driver econsole_drivers[];
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extern int console_loglevel;
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#else
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/* __PRE_RAM__ */
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/* Using a global varible can cause problems when we reset the stack
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* from cache as ram to ram. If we make this a define USE_SHARED_STACK
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* we could use the same code on all architectures.
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*/
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#define console_loglevel CONFIG_DEFAULT_CONSOLE_LOGLEVEL
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#endif
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#ifndef __ROMCC__
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void console_init(void);
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void console_tx_byte(unsigned char byte);
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void console_tx_flush(void);
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void post_code(u8 value);
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#if CONFIG_CMOS_POST_EXTRA
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void post_log_extra(u32 value);
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struct device;
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void post_log_path(struct device *dev);
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void post_log_clear(void);
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#else
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#define post_log_extra(x) do {} while (0)
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#define post_log_path(x) do {} while (0)
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#define post_log_clear() do {} while (0)
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#endif
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/* this function is weak and can be overridden by a mainboard function. */
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void mainboard_post(u8 value);
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void __attribute__ ((noreturn)) die(const char *msg);
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int do_printk(int msg_level, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
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#if defined(__BOOT_BLOCK__) && !CONFIG_BOOTBLOCK_CONSOLE || \
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(defined(__PRE_RAM__) && !defined(__BOOT_BLOCK__)) && !CONFIG_EARLY_CONSOLE
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static inline void printk(int LEVEL, const char *fmt, ...);
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static inline void printk(int LEVEL, const char *fmt, ...) {
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/* Do nothing. */
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}
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#else /* defined(__PRE_RAM__) && !CONFIG_EARLY_CONSOLE */
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#undef WE_CLEANED_UP_ALL_SIDE_EFFECTS
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/* We saw some strange effects in the past like coreboot crashing while
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* disabling cache as ram for a maximum console log level of 6 and above while
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* it worked fine without. In order to catch such issues reliably we are
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* always doing a function call to do_printk with the full number of arguments.
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* Our favorite reason to do it this way was:
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* disable_car();
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* printk(BIOS_DEBUG, "CAR disabled\n"); // oops, garbage stack pointer
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* move_stack();
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* This slightly increases the code size and some unprinted strings will end
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* up in the final coreboot binary (most of them compressed). If you want to
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* avoid this, do a
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* #define WE_CLEANED_UP_ALL_SIDE_EFFECTS
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*/
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#ifdef WE_CLEANED_UP_ALL_SIDE_EFFECTS
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#define printk(LEVEL, fmt, args...) \
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do { \
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if (CONFIG_MAXIMUM_CONSOLE_LOGLEVEL >= LEVEL) { \
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do_printk(LEVEL, fmt, ##args); \
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} \
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} while(0)
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#else
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#define printk(LEVEL, fmt, args...) \
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do { \
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if (CONFIG_MAXIMUM_CONSOLE_LOGLEVEL >= LEVEL) { \
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do_printk(LEVEL, fmt, ##args); \
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} else { \
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do_printk(BIOS_NEVER, fmt, ##args); \
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} \
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} while(0)
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#endif
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#endif /* defined(__PRE_RAM__) && !CONFIG_EARLY_CONSOLE */
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#define print_emerg(STR) printk(BIOS_EMERG, "%s", (STR))
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#define print_alert(STR) printk(BIOS_ALERT, "%s", (STR))
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#define print_crit(STR) printk(BIOS_CRIT, "%s", (STR))
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#define print_err(STR) printk(BIOS_ERR, "%s", (STR))
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#define print_warning(STR) printk(BIOS_WARNING,"%s", (STR))
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#define print_notice(STR) printk(BIOS_NOTICE, "%s", (STR))
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#define print_info(STR) printk(BIOS_INFO, "%s", (STR))
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#define print_debug(STR) printk(BIOS_DEBUG, "%s", (STR))
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#define print_spew(STR) printk(BIOS_SPEW, "%s", (STR))
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#define print_emerg_char(CH) printk(BIOS_EMERG, "%c", (CH))
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#define print_alert_char(CH) printk(BIOS_ALERT, "%c", (CH))
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#define print_crit_char(CH) printk(BIOS_CRIT, "%c", (CH))
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#define print_err_char(CH) printk(BIOS_ERR, "%c", (CH))
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#define print_warning_char(CH) printk(BIOS_WARNING,"%c", (CH))
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#define print_notice_char(CH) printk(BIOS_NOTICE, "%c", (CH))
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#define print_info_char(CH) printk(BIOS_INFO, "%c", (CH))
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#define print_debug_char(CH) printk(BIOS_DEBUG, "%c", (CH))
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#define print_spew_char(CH) printk(BIOS_SPEW, "%c", (CH))
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#define print_emerg_hex8(HEX) printk(BIOS_EMERG, "%02x", (HEX))
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#define print_alert_hex8(HEX) printk(BIOS_ALERT, "%02x", (HEX))
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#define print_crit_hex8(HEX) printk(BIOS_CRIT, "%02x", (HEX))
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#define print_err_hex8(HEX) printk(BIOS_ERR, "%02x", (HEX))
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#define print_warning_hex8(HEX) printk(BIOS_WARNING,"%02x", (HEX))
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#define print_notice_hex8(HEX) printk(BIOS_NOTICE, "%02x", (HEX))
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#define print_info_hex8(HEX) printk(BIOS_INFO, "%02x", (HEX))
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#define print_debug_hex8(HEX) printk(BIOS_DEBUG, "%02x", (HEX))
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#define print_spew_hex8(HEX) printk(BIOS_SPEW, "%02x", (HEX))
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#define print_emerg_hex16(HEX) printk(BIOS_EMERG, "%04x", (HEX))
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#define print_alert_hex16(HEX) printk(BIOS_ALERT, "%04x", (HEX))
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#define print_crit_hex16(HEX) printk(BIOS_CRIT, "%04x", (HEX))
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#define print_err_hex16(HEX) printk(BIOS_ERR, "%04x", (HEX))
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#define print_warning_hex16(HEX) printk(BIOS_WARNING,"%04x", (HEX))
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#define print_notice_hex16(HEX) printk(BIOS_NOTICE, "%04x", (HEX))
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#define print_info_hex16(HEX) printk(BIOS_INFO, "%04x", (HEX))
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#define print_debug_hex16(HEX) printk(BIOS_DEBUG, "%04x", (HEX))
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#define print_spew_hex16(HEX) printk(BIOS_SPEW, "%04x", (HEX))
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#define print_emerg_hex32(HEX) printk(BIOS_EMERG, "%08x", (HEX))
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#define print_alert_hex32(HEX) printk(BIOS_ALERT, "%08x", (HEX))
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#define print_crit_hex32(HEX) printk(BIOS_CRIT, "%08x", (HEX))
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#define print_err_hex32(HEX) printk(BIOS_ERR, "%08x", (HEX))
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#define print_warning_hex32(HEX) printk(BIOS_WARNING,"%08x", (HEX))
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#define print_notice_hex32(HEX) printk(BIOS_NOTICE, "%08x", (HEX))
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#define print_info_hex32(HEX) printk(BIOS_INFO, "%08x", (HEX))
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#define print_debug_hex32(HEX) printk(BIOS_DEBUG, "%08x", (HEX))
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#define print_spew_hex32(HEX) printk(BIOS_SPEW, "%08x", (HEX))
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#else
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/* __ROMCC__ */
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#define print_emerg(STR) __console_tx_string(BIOS_EMERG, STR)
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#define print_alert(STR) __console_tx_string(BIOS_ALERT, STR)
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#define print_crit(STR) __console_tx_string(BIOS_CRIT, STR)
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#define print_err(STR) __console_tx_string(BIOS_ERR, STR)
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#define print_warning(STR) __console_tx_string(BIOS_WARNING, STR)
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#define print_notice(STR) __console_tx_string(BIOS_NOTICE, STR)
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#define print_info(STR) __console_tx_string(BIOS_INFO, STR)
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#define print_debug(STR) __console_tx_string(BIOS_DEBUG, STR)
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#define print_spew(STR) __console_tx_string(BIOS_SPEW, STR)
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#define print_emerg_char(CH) __console_tx_char(BIOS_EMERG, CH)
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#define print_alert_char(CH) __console_tx_char(BIOS_ALERT, CH)
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#define print_crit_char(CH) __console_tx_char(BIOS_CRIT, CH)
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#define print_err_char(CH) __console_tx_char(BIOS_ERR, CH)
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#define print_warning_char(CH) __console_tx_char(BIOS_WARNING, CH)
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#define print_notice_char(CH) __console_tx_char(BIOS_NOTICE, CH)
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#define print_info_char(CH) __console_tx_char(BIOS_INFO, CH)
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#define print_debug_char(CH) __console_tx_char(BIOS_DEBUG, CH)
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#define print_spew_char(CH) __console_tx_char(BIOS_SPEW, CH)
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#define print_emerg_hex8(HEX) __console_tx_hex8(BIOS_EMERG, HEX)
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#define print_alert_hex8(HEX) __console_tx_hex8(BIOS_ALERT, HEX)
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#define print_crit_hex8(HEX) __console_tx_hex8(BIOS_CRIT, HEX)
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#define print_err_hex8(HEX) __console_tx_hex8(BIOS_ERR, HEX)
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#define print_warning_hex8(HEX) __console_tx_hex8(BIOS_WARNING, HEX)
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#define print_notice_hex8(HEX) __console_tx_hex8(BIOS_NOTICE, HEX)
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#define print_info_hex8(HEX) __console_tx_hex8(BIOS_INFO, HEX)
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#define print_debug_hex8(HEX) __console_tx_hex8(BIOS_DEBUG, HEX)
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#define print_spew_hex8(HEX) __console_tx_hex8(BIOS_SPEW, HEX)
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#define print_emerg_hex16(HEX) __console_tx_hex16(BIOS_EMERG, HEX)
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#define print_alert_hex16(HEX) __console_tx_hex16(BIOS_ALERT, HEX)
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#define print_crit_hex16(HEX) __console_tx_hex16(BIOS_CRIT, HEX)
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#define print_err_hex16(HEX) __console_tx_hex16(BIOS_ERR, HEX)
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#define print_warning_hex16(HEX) __console_tx_hex16(BIOS_WARNING, HEX)
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#define print_notice_hex16(HEX) __console_tx_hex16(BIOS_NOTICE, HEX)
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#define print_info_hex16(HEX) __console_tx_hex16(BIOS_INFO, HEX)
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#define print_debug_hex16(HEX) __console_tx_hex16(BIOS_DEBUG, HEX)
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#define print_spew_hex16(HEX) __console_tx_hex16(BIOS_SPEW, HEX)
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#define print_emerg_hex32(HEX) __console_tx_hex32(BIOS_EMERG, HEX)
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#define print_alert_hex32(HEX) __console_tx_hex32(BIOS_ALERT, HEX)
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#define print_crit_hex32(HEX) __console_tx_hex32(BIOS_CRIT, HEX)
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#define print_err_hex32(HEX) __console_tx_hex32(BIOS_ERR, HEX)
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#define print_warning_hex32(HEX) __console_tx_hex32(BIOS_WARNING, HEX)
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#define print_notice_hex32(HEX) __console_tx_hex32(BIOS_NOTICE, HEX)
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#define print_info_hex32(HEX) __console_tx_hex32(BIOS_INFO, HEX)
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#define print_debug_hex32(HEX) __console_tx_hex32(BIOS_DEBUG, HEX)
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#define print_spew_hex32(HEX) __console_tx_hex32(BIOS_SPEW, HEX)
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#include "arch/x86/lib/romcc_console.c"
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#endif /* __ROMCC__ */
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#endif /* CONSOLE_CONSOLE_H_ */
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