149 lines
3.0 KiB
C
149 lines
3.0 KiB
C
/*
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Copyright (C) 2012, Aaron Lindsay <aaron@aclindsay.com>
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This file is part of Aedrix.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <atags.h>
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#include <kmalloc.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/pi_mini_uart.h>
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#include <devices/bcm2835_videocore.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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bcm2835_videocore_init(&myfb, 16);
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for (y = 0; y < myfb.height; y++)
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for (x = 0; x < myfb.width; 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_mm() {
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struct page *p, *q;
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print("\ntest_mm():\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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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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mm_put_free_pages(p);
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mm_put_free_pages(q);
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}
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void test_kmalloc() {
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void *a, *b, *c, *d;
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print("\ntest_kmalloc():\n");
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a = kmalloc(4);
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print("a: %x\n", a);
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b = kmalloc(13);
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print("b: %x\n", b);
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c = kmalloc(4);
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print("c: %x\n", c);
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d = kmalloc(25);
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print("d: %x\n", d);
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kfree(c);
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kfree(b);
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kfree(a);
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kfree(d);
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a = kmalloc(13);
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print("a: %x\n", a);
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b = kmalloc(4);
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print("b: %x\n", b);
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c = kmalloc(25);
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print("c: %x\n", c);
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d = kmalloc(7);
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print("d: %x\n", d);
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}
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void test_memory() {
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test_mm();
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test_kmalloc();
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}
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void kmalloc_init();
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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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//initialize the serial console
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mini_uart_init();
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print_init(&mini_uart_putc);
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//setup memory
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mm_init();
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kmalloc_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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