2 * This file is part of the coreboot project.
4 * Copyright (C) 2003 Eric Biederman
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #ifndef CONSOLE_CONSOLE_H_
21 #define CONSOLE_CONSOLE_H_
24 #include <console/loglevel.h>
27 void console_tx_byte(unsigned char byte);
28 void console_tx_flush(void);
29 unsigned char console_rx_byte(void);
30 int console_tst_byte(void);
31 #if CONFIG_CONSOLE_VGA == 1
32 void vga_console_init(void);
38 struct console_driver {
40 void (*tx_byte)(unsigned char byte);
41 void (*tx_flush)(void);
42 unsigned char (*rx_byte)(void);
43 int (*tst_byte)(void);
46 #define __console __attribute__((used, __section__ (".rodata.console_drivers")))
48 /* Defined by the linker... */
49 extern struct console_driver console_drivers[];
50 extern struct console_driver econsole_drivers[];
52 extern int console_loglevel;
55 /* Using a global varible can cause problems when we reset the stack
56 * from cache as ram to ram. If we make this a define USE_SHARED_STACK
57 * we could use the same code on all architectures.
59 #define console_loglevel CONFIG_DEFAULT_CONSOLE_LOGLEVEL
63 void console_init(void);
64 void post_code(u8 value);
65 void __attribute__ ((noreturn)) die(const char *msg);
66 int do_printk(int msg_level, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
68 #undef WE_CLEANED_UP_ALL_SIDE_EFFECTS
69 /* We saw some strange effects in the past like coreboot crashing while
70 * disabling cache as ram for a maximum console log level of 6 and above while
71 * it worked fine without. In order to catch such issues reliably we are
72 * always doing a function call to do_printk with the full number of arguments.
73 * Our favorite reason to do it this way was:
75 * printk(BIOS_DEBUG, "CAR disabled\n"); // oops, garbage stack pointer
77 * This slightly increases the code size and some unprinted strings will end
78 * up in the final coreboot binary (most of them compressed). If you want to
80 * #define WE_CLEANED_UP_ALL_SIDE_EFFECTS
82 #ifdef WE_CLEANED_UP_ALL_SIDE_EFFECTS
84 #define printk(LEVEL, fmt, args...) \
86 if (CONFIG_MAXIMUM_CONSOLE_LOGLEVEL >= LEVEL) { \
87 do_printk(LEVEL, fmt, ##args); \
93 #define printk(LEVEL, fmt, args...) \
95 if (CONFIG_MAXIMUM_CONSOLE_LOGLEVEL >= LEVEL) { \
96 do_printk(LEVEL, fmt, ##args); \
98 do_printk(BIOS_NEVER, fmt, ##args); \
103 #define print_emerg(STR) printk(BIOS_EMERG, "%s", (STR))
104 #define print_alert(STR) printk(BIOS_ALERT, "%s", (STR))
105 #define print_crit(STR) printk(BIOS_CRIT, "%s", (STR))
106 #define print_err(STR) printk(BIOS_ERR, "%s", (STR))
107 #define print_warning(STR) printk(BIOS_WARNING,"%s", (STR))
108 #define print_notice(STR) printk(BIOS_NOTICE, "%s", (STR))
109 #define print_info(STR) printk(BIOS_INFO, "%s", (STR))
110 #define print_debug(STR) printk(BIOS_DEBUG, "%s", (STR))
111 #define print_spew(STR) printk(BIOS_SPEW, "%s", (STR))
113 #define print_emerg_char(CH) printk(BIOS_EMERG, "%c", (CH))
114 #define print_alert_char(CH) printk(BIOS_ALERT, "%c", (CH))
115 #define print_crit_char(CH) printk(BIOS_CRIT, "%c", (CH))
116 #define print_err_char(CH) printk(BIOS_ERR, "%c", (CH))
117 #define print_warning_char(CH) printk(BIOS_WARNING,"%c", (CH))
118 #define print_notice_char(CH) printk(BIOS_NOTICE, "%c", (CH))
119 #define print_info_char(CH) printk(BIOS_INFO, "%c", (CH))
120 #define print_debug_char(CH) printk(BIOS_DEBUG, "%c", (CH))
121 #define print_spew_char(CH) printk(BIOS_SPEW, "%c", (CH))
123 #define print_emerg_hex8(HEX) printk(BIOS_EMERG, "%02x", (HEX))
124 #define print_alert_hex8(HEX) printk(BIOS_ALERT, "%02x", (HEX))
125 #define print_crit_hex8(HEX) printk(BIOS_CRIT, "%02x", (HEX))
126 #define print_err_hex8(HEX) printk(BIOS_ERR, "%02x", (HEX))
127 #define print_warning_hex8(HEX) printk(BIOS_WARNING,"%02x", (HEX))
128 #define print_notice_hex8(HEX) printk(BIOS_NOTICE, "%02x", (HEX))
129 #define print_info_hex8(HEX) printk(BIOS_INFO, "%02x", (HEX))
130 #define print_debug_hex8(HEX) printk(BIOS_DEBUG, "%02x", (HEX))
131 #define print_spew_hex8(HEX) printk(BIOS_SPEW, "%02x", (HEX))
133 #define print_emerg_hex16(HEX) printk(BIOS_EMERG, "%04x", (HEX))
134 #define print_alert_hex16(HEX) printk(BIOS_ALERT, "%04x", (HEX))
135 #define print_crit_hex16(HEX) printk(BIOS_CRIT, "%04x", (HEX))
136 #define print_err_hex16(HEX) printk(BIOS_ERR, "%04x", (HEX))
137 #define print_warning_hex16(HEX) printk(BIOS_WARNING,"%04x", (HEX))
138 #define print_notice_hex16(HEX) printk(BIOS_NOTICE, "%04x", (HEX))
139 #define print_info_hex16(HEX) printk(BIOS_INFO, "%04x", (HEX))
140 #define print_debug_hex16(HEX) printk(BIOS_DEBUG, "%04x", (HEX))
141 #define print_spew_hex16(HEX) printk(BIOS_SPEW, "%04x", (HEX))
143 #define print_emerg_hex32(HEX) printk(BIOS_EMERG, "%08x", (HEX))
144 #define print_alert_hex32(HEX) printk(BIOS_ALERT, "%08x", (HEX))
145 #define print_crit_hex32(HEX) printk(BIOS_CRIT, "%08x", (HEX))
146 #define print_err_hex32(HEX) printk(BIOS_ERR, "%08x", (HEX))
147 #define print_warning_hex32(HEX) printk(BIOS_WARNING,"%08x", (HEX))
148 #define print_notice_hex32(HEX) printk(BIOS_NOTICE, "%08x", (HEX))
149 #define print_info_hex32(HEX) printk(BIOS_INFO, "%08x", (HEX))
150 #define print_debug_hex32(HEX) printk(BIOS_DEBUG, "%08x", (HEX))
151 #define print_spew_hex32(HEX) printk(BIOS_SPEW, "%08x", (HEX))
154 #include <pc80/serial.c>
156 #if CONFIG_CONSOLE_NE2K
157 #include "lib/ne2k.c"
161 static void __console_tx_byte(unsigned char byte)
164 #if CONFIG_CONSOLE_NE2K
165 ne2k_append_data_byte(byte, CONFIG_CONSOLE_NE2K_IO_PORT);
169 static void __console_tx_nibble(unsigned nibble)
172 digit = nibble + '0';
176 __console_tx_byte(digit);
179 static void __console_tx_char(int loglevel, unsigned char byte)
181 if (console_loglevel >= loglevel) {
183 #if CONFIG_CONSOLE_NE2K
184 ne2k_append_data_byte(byte, CONFIG_CONSOLE_NE2K_IO_PORT);
185 ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
190 static void __console_tx_hex8(int loglevel, unsigned char value)
192 if (console_loglevel >= loglevel) {
193 __console_tx_nibble((value >> 4U) & 0x0fU);
194 __console_tx_nibble(value & 0x0fU);
196 #if CONFIG_CONSOLE_NE2K
197 ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
201 static void __console_tx_hex16(int loglevel, unsigned short value)
203 if (console_loglevel >= loglevel) {
204 __console_tx_nibble((value >> 12U) & 0x0fU);
205 __console_tx_nibble((value >> 8U) & 0x0fU);
206 __console_tx_nibble((value >> 4U) & 0x0fU);
207 __console_tx_nibble(value & 0x0fU);
209 #if CONFIG_CONSOLE_NE2K
210 ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
214 static void __console_tx_hex32(int loglevel, unsigned int value)
216 if (console_loglevel >= loglevel) {
217 __console_tx_nibble((value >> 28U) & 0x0fU);
218 __console_tx_nibble((value >> 24U) & 0x0fU);
219 __console_tx_nibble((value >> 20U) & 0x0fU);
220 __console_tx_nibble((value >> 16U) & 0x0fU);
221 __console_tx_nibble((value >> 12U) & 0x0fU);
222 __console_tx_nibble((value >> 8U) & 0x0fU);
223 __console_tx_nibble((value >> 4U) & 0x0fU);
224 __console_tx_nibble(value & 0x0fU);
226 #if CONFIG_CONSOLE_NE2K
227 ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
231 static void __console_tx_string(int loglevel, const char *str)
233 if (console_loglevel >= loglevel) {
235 while((ch = *str++) != '\0') {
237 __console_tx_byte('\r');
238 __console_tx_byte(ch);
240 #if CONFIG_CONSOLE_NE2K
241 ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
246 #define FUNCTIONS_FOR_PRINT
247 #ifdef FUNCTIONS_FOR_PRINT
248 static void print_emerg_char(unsigned char byte) { __console_tx_char(BIOS_EMERG, byte); }
249 static void print_emerg_hex8(unsigned char value){ __console_tx_hex8(BIOS_EMERG, value); }
250 static void print_emerg_hex16(unsigned short value){ __console_tx_hex16(BIOS_EMERG, value); }
251 static void print_emerg_hex32(unsigned int value) { __console_tx_hex32(BIOS_EMERG, value); }
252 static void print_emerg(const char *str) { __console_tx_string(BIOS_EMERG, str); }
254 static void print_alert_char(unsigned char byte) { __console_tx_char(BIOS_ALERT, byte); }
255 static void print_alert_hex8(unsigned char value) { __console_tx_hex8(BIOS_ALERT, value); }
256 static void print_alert_hex16(unsigned short value){ __console_tx_hex16(BIOS_ALERT, value); }
257 static void print_alert_hex32(unsigned int value) { __console_tx_hex32(BIOS_ALERT, value); }
258 static void print_alert(const char *str) { __console_tx_string(BIOS_ALERT, str); }
260 static void print_crit_char(unsigned char byte) { __console_tx_char(BIOS_CRIT, byte); }
261 static void print_crit_hex8(unsigned char value) { __console_tx_hex8(BIOS_CRIT, value); }
262 static void print_crit_hex16(unsigned short value){ __console_tx_hex16(BIOS_CRIT, value); }
263 static void print_crit_hex32(unsigned int value) { __console_tx_hex32(BIOS_CRIT, value); }
264 static void print_crit(const char *str) { __console_tx_string(BIOS_CRIT, str); }
266 static void print_err_char(unsigned char byte) { __console_tx_char(BIOS_ERR, byte); }
267 static void print_err_hex8(unsigned char value) { __console_tx_hex8(BIOS_ERR, value); }
268 static void print_err_hex16(unsigned short value){ __console_tx_hex16(BIOS_ERR, value); }
269 static void print_err_hex32(unsigned int value) { __console_tx_hex32(BIOS_ERR, value); }
270 static void print_err(const char *str) { __console_tx_string(BIOS_ERR, str); }
272 static void print_warning_char(unsigned char byte) { __console_tx_char(BIOS_WARNING, byte); }
273 static void print_warning_hex8(unsigned char value) { __console_tx_hex8(BIOS_WARNING, value); }
274 static void print_warning_hex16(unsigned short value){ __console_tx_hex16(BIOS_WARNING, value); }
275 static void print_warning_hex32(unsigned int value) { __console_tx_hex32(BIOS_WARNING, value); }
276 static void print_warning(const char *str) { __console_tx_string(BIOS_WARNING, str); }
278 static void print_notice_char(unsigned char byte) { __console_tx_char(BIOS_NOTICE, byte); }
279 static void print_notice_hex8(unsigned char value) { __console_tx_hex8(BIOS_NOTICE, value); }
280 static void print_notice_hex16(unsigned short value){ __console_tx_hex16(BIOS_NOTICE, value); }
281 static void print_notice_hex32(unsigned int value) { __console_tx_hex32(BIOS_NOTICE, value); }
282 static void print_notice(const char *str) { __console_tx_string(BIOS_NOTICE, str); }
284 static void print_info_char(unsigned char byte) { __console_tx_char(BIOS_INFO, byte); }
285 static void print_info_hex8(unsigned char value) { __console_tx_hex8(BIOS_INFO, value); }
286 static void print_info_hex16(unsigned short value){ __console_tx_hex16(BIOS_INFO, value); }
287 static void print_info_hex32(unsigned int value) { __console_tx_hex32(BIOS_INFO, value); }
288 static void print_info(const char *str) { __console_tx_string(BIOS_INFO, str); }
290 static void print_debug_char(unsigned char byte) { __console_tx_char(BIOS_DEBUG, byte); }
291 static void print_debug_hex8(unsigned char value) { __console_tx_hex8(BIOS_DEBUG, value); }
292 static void print_debug_hex16(unsigned short value){ __console_tx_hex16(BIOS_DEBUG, value); }
293 static void print_debug_hex32(unsigned int value) { __console_tx_hex32(BIOS_DEBUG, value); }
294 static void print_debug(const char *str) { __console_tx_string(BIOS_DEBUG, str); }
296 static void print_spew_char(unsigned char byte) { __console_tx_char(BIOS_SPEW, byte); }
297 static void print_spew_hex8(unsigned char value) { __console_tx_hex8(BIOS_SPEW, value); }
298 static void print_spew_hex16(unsigned short value){ __console_tx_hex16(BIOS_SPEW, value); }
299 static void print_spew_hex32(unsigned int value) { __console_tx_hex32(BIOS_SPEW, value); }
300 static void print_spew(const char *str) { __console_tx_string(BIOS_SPEW, str); }
303 #define print_emerg(STR) __console_tx_string(BIOS_EMERG, STR)
304 #define print_alert(STR) __console_tx_string(BIOS_ALERT, STR)
305 #define print_crit(STR) __console_tx_string(BIOS_CRIT, STR)
306 #define print_err(STR) __console_tx_string(BIOS_ERR, STR)
307 #define print_warning(STR) __console_tx_string(BIOS_WARNING, STR)
308 #define print_notice(STR) __console_tx_string(BIOS_NOTICE, STR)
309 #define print_info(STR) __console_tx_string(BIOS_INFO, STR)
310 #define print_debug(STR) __console_tx_string(BIOS_DEBUG, STR)
311 #define print_spew(STR) __console_tx_string(BIOS_SPEW, STR)
313 #define print_emerg_char(CH) __console_tx_char(BIOS_EMERG, CH)
314 #define print_alert_char(CH) __console_tx_char(BIOS_ALERT, CH)
315 #define print_crit_char(CH) __console_tx_char(BIOS_CRIT, CH)
316 #define print_err_char(CH) __console_tx_char(BIOS_ERR, CH)
317 #define print_warning_char(CH) __console_tx_char(BIOS_WARNING, CH)
318 #define print_notice_char(CH) __console_tx_char(BIOS_NOTICE, CH)
319 #define print_info_char(CH) __console_tx_char(BIOS_INFO, CH)
320 #define print_debug_char(CH) __console_tx_char(BIOS_DEBUG, CH)
321 #define print_spew_char(CH) __console_tx_char(BIOS_SPEW, CH)
323 #define print_emerg_hex8(HEX) __console_tx_hex8(BIOS_EMERG, HEX)
324 #define print_alert_hex8(HEX) __console_tx_hex8(BIOS_ALERT, HEX)
325 #define print_crit_hex8(HEX) __console_tx_hex8(BIOS_CRIT, HEX)
326 #define print_err_hex8(HEX) __console_tx_hex8(BIOS_ERR, HEX)
327 #define print_warning_hex8(HEX) __console_tx_hex8(BIOS_WARNING, HEX)
328 #define print_notice_hex8(HEX) __console_tx_hex8(BIOS_NOTICE, HEX)
329 #define print_info_hex8(HEX) __console_tx_hex8(BIOS_INFO, HEX)
330 #define print_debug_hex8(HEX) __console_tx_hex8(BIOS_DEBUG, HEX)
331 #define print_spew_hex8(HEX) __console_tx_hex8(BIOS_SPEW, HEX)
333 #define print_emerg_hex16(HEX) __console_tx_hex16(BIOS_EMERG, HEX)
334 #define print_alert_hex16(HEX) __console_tx_hex16(BIOS_ALERT, HEX)
335 #define print_crit_hex16(HEX) __console_tx_hex16(BIOS_CRIT, HEX)
336 #define print_err_hex16(HEX) __console_tx_hex16(BIOS_ERR, HEX)
337 #define print_warning_hex16(HEX) __console_tx_hex16(BIOS_WARNING, HEX)
338 #define print_notice_hex16(HEX) __console_tx_hex16(BIOS_NOTICE, HEX)
339 #define print_info_hex16(HEX) __console_tx_hex16(BIOS_INFO, HEX)
340 #define print_debug_hex16(HEX) __console_tx_hex16(BIOS_DEBUG, HEX)
341 #define print_spew_hex16(HEX) __console_tx_hex16(BIOS_SPEW, HEX)
343 #define print_emerg_hex32(HEX) __console_tx_hex32(BIOS_EMERG, HEX)
344 #define print_alert_hex32(HEX) __console_tx_hex32(BIOS_ALERT, HEX)
345 #define print_crit_hex32(HEX) __console_tx_hex32(BIOS_CRIT, HEX)
346 #define print_err_hex32(HEX) __console_tx_hex32(BIOS_ERR, HEX)
347 #define print_warning_hex32(HEX) __console_tx_hex32(BIOS_WARNING, HEX)
348 #define print_notice_hex32(HEX) __console_tx_hex32(BIOS_NOTICE, HEX)
349 #define print_info_hex32(HEX) __console_tx_hex32(BIOS_INFO, HEX)
350 #define print_debug_hex32(HEX) __console_tx_hex32(BIOS_DEBUG, HEX)
351 #define print_spew_hex32(HEX) __console_tx_hex32(BIOS_SPEW, HEX)
357 /* if included by romcc, include the sources, too. romcc can't use prototypes */
358 #include <console/console.c>
361 #endif /* CONSOLE_CONSOLE_H_ */