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init: Move all init into init.c from start_kernel.c

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This commit is contained in:
Aaron Lindsay
2012-10-09 23:26:04 -04:00
parent 5f59e07432
commit c90edb451d
5 changed files with 102 additions and 124 deletions
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100
kernel/init.c
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@ -18,8 +18,18 @@
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <types.h>
#include <atags.h>
#include <console.h>
#include <framebuffer.h>
#include <kmalloc.h>
#include <print.h>
#include <mm.h>
#include <mmu.h>
#include <types.h>
#include <drivers/fb.h>
#include <drivers/serial.h>
extern uint32 early_initcalls_start, early_initcalls_end;
extern uint32 initcalls_start, initcalls_end;
@ -35,3 +45,91 @@ void init_initcalls() {
for (initcall = (void (**)()) &initcalls_start; initcall < (void (**)())&initcalls_end; initcall++)
(*initcall)();
}
struct fb console_fb;
void print_console_logo() {
print(" _ _ _\n");
print(" / \\ ___ __| |_ __(_)_ __\n");
print(" / _ \\ / _ \\/ _` | '__| \\ \\/ /\n");
print(" / ___ \\ __/ (_| | | | |> <\n");
print(" /_/ \\_\\___|\\__,_|_| |_/_/\\_\\\n\n");
print(" Copyright (C) 2012 - Aaron Lindsay\n\n\n");
}
void video_console_init(void) {
struct fb_dev *fbdev = fb_first_device();
int ret;
if (!fbdev) {
print("Error: No framebuffer-capable device registered.");
return;
}
ret = fbdev->init(&console_fb, 16);
if (ret) {
print("Error: Failed to initialize framebuffer device.");
return;
}
if ((console_init(&console_fb)))
return;
print_register_func(&console_putc);
print_console_logo();
print("Initialized video console on %s.\n", fbdev->name);
}
void serial_console_init() {
struct serial_dev *sdev = serial_first_device();
if (!sdev)
return;
print_register_func_early(sdev->putc);
print("Initialized serial console on %s\n", sdev->name);
}
//Forward declarations of non-initcall initializations that are only needed
//once, and only here
void serial_init();
void kmalloc_init();
int main(void) {
char *lower, *upper;
struct atag *atags;
//setup MMU
mmu_reinit();
/* Initialize the serial subsystem before
* init_earlyinitcalls(), because console drivers get
* initialized here so as to have an output console as
* early as possible, and we don't want those
* initializations to fail. */
serial_init();
init_earlyinitcalls();
serial_console_init();
//setup memory subsystems
mm_init();
kmalloc_init();
if (atags_first_mem_region(&atags)) {
print("Error: atags must contain at least one memory region\n");
return -1;
}
do {
lower = (char *)atags->data.mem.start;
upper = lower + atags->data.mem.size - 1;
print("atags: physical memory at %x-%x\n", lower, upper);
declare_memory_region(lower, upper);
} while (!atags_next_mem_region(&atags));
init_initcalls();
video_console_init();
return 0;
}