84 lines
1.5 KiB
C
84 lines
1.5 KiB
C
#include <atags.h>
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#include <mmu.h>
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#include <mm.h>
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#include <print.h>
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#include <devices/pl011.h>
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#include <devices/pl111.h>
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#include <framebuffer.h>
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#include <console.h>
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struct fb myfb;
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void video(void) {
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unsigned int x, y;
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pl111_init(&myfb, 24);
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x = 0, y = 0;
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for (y=0; y<480; y++)
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for (x=0; x<640; x++)
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fb_write_pixel(&myfb, x, y, 0x3f, 0x0, 0x6f);
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console_init(&myfb);
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}
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void test_memory() {
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struct page *p, *q;
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p = mm_get_free_pages(0);
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if (p)
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print("%x, %x\n", p, p->address);
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else
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print("Error: failed to allocate memory for p\n");
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q = mm_get_free_pages(4);
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if (q)
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print("%x, %x\n", q, q->address);
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else
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print("Error: failed to allocate memory for q\n");
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mm_put_free_pages(p);
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mm_put_free_pages(q);
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q = mm_get_free_pages(1);
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if (q)
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print("%x, %x\n", q, q->address);
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else
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print("Error: failed to allocate memory for q\n");
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p = mm_get_free_pages(0);
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if (p)
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print("%x, %x\n", p, p->address);
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else
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print("Error: failed to allocate memory for p\n");
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}
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int main(void) {
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char *lower, *upper;
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struct atag *atags;
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//setup MMU
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mmu_reinit();
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print_init(&pl011_putc); //initialize the serial console
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//setup memory
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mm_init();
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if (atags_first_mem_region(&atags)) {
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print("Error: atags must contain at least one memory region\n");
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return -1;
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}
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do {
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lower = (char *)atags->data.mem.start;
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upper = lower + atags->data.mem.size - 1;
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declare_memory_region(lower, upper);
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} while (!atags_next_mem_region(&atags));
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test_memory();
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video();
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return 0;
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}
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