diff options
Diffstat (limited to 'src/console')
-rw-r--r-- | src/console/early_print.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/console/early_print.c b/src/console/early_print.c new file mode 100644 index 0000000000..da6532f0fb --- /dev/null +++ b/src/console/early_print.c @@ -0,0 +1,64 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/streams.h> + +void console_tx_nibble(unsigned nibble) +{ + unsigned char digit; + digit = nibble + '0'; + if (digit > '9') { + digit += 39; + } + console_tx_byte(digit); +} + +void console_tx_hex8(unsigned char value) +{ + console_tx_nibble((value >> 4U) & 0x0fU); + console_tx_nibble(value & 0x0fU); +} + +void console_tx_hex16(unsigned short value) +{ + console_tx_nibble((value >> 12U) & 0x0fU); + console_tx_nibble((value >> 8U) & 0x0fU); + console_tx_nibble((value >> 4U) & 0x0fU); + console_tx_nibble(value & 0x0fU); +} + +void console_tx_hex32(unsigned int value) +{ + console_tx_nibble((value >> 28U) & 0x0fU); + console_tx_nibble((value >> 24U) & 0x0fU); + console_tx_nibble((value >> 20U) & 0x0fU); + console_tx_nibble((value >> 16U) & 0x0fU); + console_tx_nibble((value >> 12U) & 0x0fU); + console_tx_nibble((value >> 8U) & 0x0fU); + console_tx_nibble((value >> 4U) & 0x0fU); + console_tx_nibble(value & 0x0fU); +} + +void console_tx_string(const char *str) +{ + unsigned char ch; + while((ch = *str++) != '\0') { + if (ch == '\n') + console_tx_byte('\r'); + console_tx_byte(ch); + } +} |