Rewrite drivers/uart and drivers/vga in cpp

1 files changed, 59 insertions, 0 deletions

diff --git a/src/kernel.cpp b/src/kernel.cpp
new file mode 100644
index 0000000..751bcb0
--- /dev/null
+++ b/src/kernel.cpp
@@ -0,0 +1,59 @@
+//=====================================================================
+// glitch kernel
+// spdx-license-identifier: ISC
+// description: kernel entry point
+//=====================================================================
+
+extern "C" {
+#include "conf.h"
+#include "mem.h"
+#include <devices/keyboard.h>
+#include <devices/mouse.h>
+#include <devices/pic.h>
+#include <devices/ps2_controller.h>
+#include <stdio.h>
+#include <sys/cpuid.h>
+}
+#include <devices/uart.hpp>
+#include <devices/vga.hpp>
+
+FILE *stdin;
+FILE *stdout;
+FILE *stderr;
+
+extern "C" void
+kmain()
+{
+  stderr = uart_init<COM1>();
+  vmm_map(0xb8000, 0xc03ff000);
+  stdout = vga_init((void *)0xc03ff000);
+
+  printf("glitch [version " VERSION "] [" CC "]\n");
+  fprintf(stderr, "glitch [version " VERSION "] [" CC "]\n");
+  {
+    char vendor[13] = {'\0'};
+    unsigned int eax;
+    __get_cpuid(0, &eax, (unsigned int *)vendor, (unsigned int *)(vendor + 8), (unsigned int *)(vendor + 4));
+    struct CPUVersion v;
+    __get_cpuid(1, (unsigned int *)&v, &eax, &eax, &eax);
+    printf("CPU: %s family %u model %u stepping %u\n", vendor, family(v), model(v), v.stepping);
+    fprintf(stderr, "CPU: %s family %u model %u stepping %u\n", vendor, family(v), model(v), v.stepping);
+  }
+
+  pic_init();
+
+  ps2_ctrl_init();
+  ps2_keyboard_init();
+  mouse_init();
+
+  pic_enable();
+  fprintf(stderr, "interrupts enabled\n");
+
+  /*
+    alloc4M();
+    char *c = (char *)0xc0700000;
+    if (*c == 0) printf("c is 0\r\n");
+  */
+
+  while (1) {}
+}