Change: programs->utils

2024-09-14 20:31:35 +02:00
parent d89a1c4071
commit 87bb1d96fd
21 changed files with 8 additions and 8 deletions
--- a/src/utils/sysinfo.c
+++ b/src/utils/sysinfo.c
@@ -0,0 +1,85 @@
+// System information program
+// Author: xamidev
+// Licensed under the Unlicense. See the repo below.
+// https://github.com/xamidev/blankos
+
+#include "../kernel/sysinfo.h"
+#include "../libc/stdio.h"
+#include "../kernel/system.h"
+#include "../libc/string.h"
+
+extern unsigned int multiboot_info_address;
+
+typedef struct multiboot_memory_map
+{
+	unsigned int size;
+	unsigned int base_addr_low;
+	unsigned int base_addr_high;
+	unsigned int length_low;
+	unsigned int length_high;
+	unsigned int type;
+} multiboot_memory_map_t;
+
+void get_cpuid()
+{
+	// CPUid
+
+	unsigned int eax, edx;
+	char vendor[13];
+	unsigned int* v = (unsigned int*)vendor;
+
+	asm volatile("cpuid"
+			: "=b"(v[0]), "=d"(v[1]), "=c"(v[2])
+			: "a"(0));
+	vendor[12] = '\0';
+
+	cpuid(1, &eax, &edx);
+	unsigned int model = (eax >> 4) & 0xF;
+	unsigned int family = (eax >> 8) & 0xF;
+
+	printf("CPU information\n\tvendor:   %s\n\tfamily:   %u\n\tmodel:    %u\n\tfeatures: 0x%x\n", vendor, family, model, edx);
+}
+
+// Not really working anymore as it was made for multiboot1, now using multiboot2
+void get_meminfo(unsigned int multiboot_info_address, int verbose)
+{
+	// RAM
+	
+	unsigned int mem_lower = *((unsigned int*)(multiboot_info_address + 4));
+	unsigned int mem_upper = *((unsigned int*)(multiboot_info_address + 8));
+
+	printf("RAM information\n\tLower memory: %u KB\n\tUpper memory: %u KB\n", mem_lower, mem_upper);
+
+	if (verbose)
+	{
+		multiboot_memory_map_t* mmap = (multiboot_memory_map_t*)*((unsigned int*)(multiboot_info_address + 44));
+		printf("Memory map:\nBase addr          | Length             | Type\n----------------------------------------------------\n");
+
+		while ((unsigned int)mmap < multiboot_info_address + *((unsigned int*)(multiboot_info_address + 40)))
+		{
+			/*	
+			if (mmap->length_high != 0 && mmap->length_low != 0)
+			{*/
+				printf("0x%x%x | 0x%x%x | %u\n",
+					mmap->base_addr_high, mmap->base_addr_low,
+					mmap->length_high, mmap->length_low,
+					mmap->type);
+			//}
+			
+			mmap = (multiboot_memory_map_t*)((unsigned int)mmap + mmap->size + sizeof(unsigned int));
+		}
+	}
+}
+
+void program_sysinfo(int argc, char* argv[])
+{
+	if (argc == 1)
+	{
+		get_cpuid();
+		get_meminfo(g_multiboot_info_address, 0);
+	} else if (argc == 2 && strcmp(argv[1], "-v") == 0)
+	{	
+		get_cpuid();
+		get_meminfo(g_multiboot_info_address, 1);
+	}
+}