diff options
Diffstat (limited to 'kernel/drivers')
| -rw-r--r-- | kernel/drivers/serial.cc (renamed from kernel/drivers/serial/serial.c) | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/kernel/drivers/serial/serial.c b/kernel/drivers/serial.cc index aae1793..df40481 100644 --- a/kernel/drivers/serial/serial.c +++ b/kernel/drivers/serial.cc @@ -16,19 +16,20 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <stdbool.h> - -#include <libk/string.h> - -#include <kernel/io.h> - +#include <common.h> #include <drivers/serial.h> +#include <kernel/io.h> +#include <libk/string.h> +#include <stdbool.h> /* Implementation adapted from * https://wiki.osdev.org/Inline_Assembly/Examples */ +namespace Serial +{ + bool -serial_initialize(void) +initialize(void) { outb(PORT + 1, 0x00); // Disable all interrupts outb(PORT + 3, 0x80); // Enable DLAB (set baud rate divisor) @@ -53,14 +54,14 @@ serial_initialize(void) return true; } -static int -is_transmit_empty() +ALWAYS_INLINE static int +is_transmit_empty(void) { return inb(PORT + 5) & 0x20; } void -serial_write_char(const char chr) +write_char(const char chr) { while (is_transmit_empty() == 0) ; @@ -69,9 +70,11 @@ serial_write_char(const char chr) } void -serial_write_string(const char *string) +write_string(const char *string) { size_t size = strlen(string); for (size_t i = 0; i < size; i++) - serial_write_char(string[i]); + write_char(string[i]); +} + } |