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Add debugging prints, enable backlight for stage1

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This commit is contained in:
Michael Scire 2018-04-07 23:04:30 -06:00
parent 33f76545df
commit 353019a269
2 changed files with 19 additions and 2 deletions
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15
fusee/fusee-primary/src/main.c
View file

@ -12,11 +12,18 @@
#define BCT0_LOAD_END_ADDRESS (uintptr_t)(0x4003F000)
#define MAGIC_BCT0 0x30544342
#define DEFAULT_BCT0_FOR_DEBUG "BCT0\n[stage1]\nstage2_file = stage2.bin\nstage2_addr = 0xFFF00000\nstage2_entrypoint = 0xCAFEBABE\n"
const char *load_config(void) {
if (!read_sd_file((void *)BCT0_LOAD_ADDRESS, BCT0_LOAD_END_ADDRESS - BCT0_LOAD_ADDRESS, "BCT.ini")) {
printk("Error: Failed to load BCT.ini!\n");
generic_panic();
printk("Failed to read BCT0 from SD!\n");
printk("[DEBUG] Using default BCT0!\n");
memcpy((void *)BCT0_LOAD_ADDRESS, DEFAULT_BCT0_FOR_DEBUG, sizeof(DEFAULT_BCT0_FOR_DEBUG));
/* TODO: Stop using default. */
/* printk("Error: Failed to load BCT.ini!\n");
* generic_panic(); */
}
if ((*((u32 *)(BCT0_LOAD_ADDRESS))) != MAGIC_BCT0) {
printk("Error: Unexpected magic in BCT.ini!\n");
generic_panic();
@ -62,6 +69,10 @@ int main(void) {
lfb_base = display_init_framebuffer();
video_init(lfb_base);
/* Turn on the backlight after initializing the lfb */
/* to avoid flickering. */
display_enable_backlight(true);
/* Say hello. */
printk("Welcome to Atmosph\xe8re Fus\xe9" "e!\n");
printk("Using color linear framebuffer at 0x%p!\n", lfb_base);

6
fusee/fusee-primary/src/stage2.c
View file

@ -1,4 +1,5 @@
#include "utils.h"
#include <stdint.h>
#include "sd_utils.h"
#include "stage2.h"
#include "lib/printk.h"
@ -44,6 +45,11 @@ stage2_entrypoint_t load_stage2(const char *bct0) {
generic_panic();
}
printk("[DEBUG] Stage 2 Config:\n");
printk(" Filename: %s\n", config.filename);
printk(" Load Address: 0x%08x\n", config.load_address);
printk(" Entrypoint: 0x%p\n", config.entrypoint);
if (!read_sd_file((void *)config.load_address, 0x100000, config.filename)) {
printk("Error: Failed to read stage2 (%s)!\n", config.filename);
generic_panic();