Don't pass the mmc struct around

fusee/fusee-secondary/src/main.c

@@ -1,4 +1,6 @@
 #include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
 #include "utils.h"
 #include "hwinit.h"
 #include "loader.h"
@@ -34,8 +36,10 @@ int main(int argc, void **argv) {
     /* Setup console/stdout. */
     console_resume(args.lfb, args.console_row, args.console_col);
 
-    resume_sd_state((struct mmc *)args.sd_mmc);
-    fsdev_mount_all();
+    initialize_sd();
+    if(fsdev_mount_all() == -1) {
+        perror("Failed to mount at least one FAT parition");
+    }
     fsdev_set_default_device("sdmc");
 
     /* Copy the BCT0 from unsafe primary memory into our memory. */

fusee/fusee-secondary/src/sd_utils.c

@@ -7,14 +7,6 @@
 struct mmc sd_mmc;
 static int initialized_sd = 0;
 
-void save_sd_state(void **mmc) {
-    *mmc = &sd_mmc;
-}
-void resume_sd_state(void *mmc) {
-    sd_mmc = *(struct mmc *)mmc;
-    initialized_sd = 1;
-}
-
 int initialize_sd(void) {
     if (initialized_sd) {
         return 1;
@@ -23,6 +15,9 @@ int initialize_sd(void) {
     if (sdmmc_init(&sd_mmc, SWITCH_MICROSD) == 0) {
         printf("Initialized SD card!\n");
         initialized_sd = 1;
+    } else {
+        printf("Failed to initialize the SD card!\n");
+        return 0;
     }
     return initialized_sd;
 }

fusee/fusee-secondary/src/sd_utils.h

@@ -4,9 +4,7 @@
 #include "utils.h"
 #include "sdmmc.h"
 
-void save_sd_state(void **mmc);
-void resume_sd_state(void *mmc);
-
+int initialize_sd(void);
 size_t read_sd_file(void *dst, size_t dst_size, const char *filename);
 
 #endif

fusee/fusee-secondary/src/stage2.h

@@ -14,7 +14,6 @@ typedef struct {
     uint32_t *lfb;
     uint32_t console_row;
     uint32_t console_col;
-    void *sd_mmc;
 } stage2_args_t;
 
 #endif