diff options
Diffstat (limited to 'stage3/main.c')
| -rw-r--r-- | stage3/main.c | 172 |
1 files changed, 147 insertions, 25 deletions
diff --git a/stage3/main.c b/stage3/main.c index d3ebe9d..5362984 100644 --- a/stage3/main.c +++ b/stage3/main.c @@ -1,20 +1,34 @@ +void kmain(); + +void init() +{ + kmain(); +} + #include "def.h" #include "paging.h" #include "gfx.h" #include "halt.h" #include "heap.h" #include "font.h" -#include "letters.h" #include "interrupts.h" #include "pic.h" -#include "anna.h" - -void init() +#include "io.h" +#include "memory.h" +#include "ata.h" +#include "fs.h" +#include "string.h" +#include "pci.h" + +void eat_whitespace(char **str) { - letters_init(); + while (**str == ' ' || **str == '\t') + (*str)++; +} +void kmain() +{ heap_init(); - set_font_size(2); #define MMAP for (MemRegion *mreg = (void *) 0x500; mreg->start != nil; mreg++) @@ -42,20 +56,9 @@ void init() // gfx init gfx_set_area(0, 0, gfx_info->width, gfx_info->height, 0xFF000000); - // charset demo - { - const u8 max = '~' - '!' + 1; - - char str[max + 1]; - str[max] = '\0'; - - for (u8 i = 0; i < max; i++) - str[i] = i + '!'; - - print("charset demo:\n"); - print(str); - print("\n"); - } + font_init(); + font_set_size(1); + font_load_classic(); // memory map print("memory map:\n"); @@ -70,11 +73,130 @@ void init() init_interrupts(); pic_init(); + ata_init(); + + file f = fs_read("init"); + if (f.data == nil) + panic("no init script"); + + // this is horrible horrible horrible + // if you read this i am genuinely sorry + + char *init = malloc(f.len+1); + char *init_orig = init; + init[f.len] = '\0'; + memcpy(init, f.data, f.len); + free(f.data); + + for (;;) { + eat_whitespace(&init); + + if (*init == '\0') + break; + else if (*init == '\n') { + init++; + continue; + } + + if (strncmp(init, "echo ", strlen("echo ")) == 0) { + init += strlen("echo "); + usize idx = find_char(init, '\n'); + printn(init, idx); + print("\n"); + init += idx; + } else if (strncmp(init, "cat ", strlen("cat ")) == 0) { + init += strlen("cat "); + usize idx = find_char(init, '\n'); + + char filename[idx+1]; + filename[idx] = '\0'; + memcpy(filename, init, idx); + + file f = fs_read(filename); + if (f.data == nil) { + print("cat: file not found: "); + print(filename); + print("\n"); + } else { + printn(f.data, f.len); + free(f.data); + } + + init += idx; + } else if (strncmp(init, "font ", strlen("font ")) == 0) { + init += strlen("font "); + usize idx = find_char(init, '\n'); + + char filename[idx+1]; + filename[idx] = '\0'; + memcpy(filename, init, idx); + + file f = fs_read(filename); + if (f.data == nil) { + print("font: file not found: "); + print(filename); + print("\n"); + } else { + if (f.len == 16*256) + font_load_blob(f.data); + else + print("font: file has wrong size\n"); + free(f.data); + } + + init += idx; + } else if (strncmp(init, "img ", strlen("img ")) == 0) { + init += strlen("img "); + usize idx = find_char(init, '\n'); + + char filename[idx+1]; + filename[idx] = '\0'; + memcpy(filename, init, idx); + + file f = fs_read(filename); + if (f.data == nil) { + print("img: file not found: "); + print(filename); + print("\n"); + } else { + if (f.len < 2 * sizeof(u32)) + print("img: missing header\n"); + else { + u32 width = ((u32 *) f.data)[0]; + u32 height = ((u32 *) f.data)[1]; + if (f.len != 2 * sizeof(u32) + width * height * sizeof(color)) + panic("img: invalid file size\n"); + gfx_draw_img(gfx_info->width-width, 0, width, height, f.data + 2 * sizeof(u32)); + } + free(f.data); + } + + init += idx; + } else if (strncmp(init, "lspci", strlen("lspci")) == 0) { + pci_enumerate(); + init += find_char(init, '\n'); + } else if (strncmp(init, "charset_demo", strlen("charset_demo")) == 0) { + const u8 max = '~' - '!' + 1; + + char str[max + 1]; + str[max] = '\0'; + + for (u8 i = 0; i < max; i++) + str[i] = i + '!'; + + print("charset demo:\n"); + print(str); + print("\n"); + init += find_char(init, '\n'); + } else { + print("unknown command: "); + usize idx = find_char(init, '\n'); + printn(init, idx); + print("\n"); + init += idx; + } + } - uwu(); - - // unmask_irq(IRQ_PIT); - enable_irqs(); - + free(init_orig); halt(); } |