Instead of passing FatFS structs around, unmount; other changes

fusee/fusee-primary/src/main.c

@@ -115,11 +115,10 @@ int main(void) {
     args->lfb = (uint32_t *)lfb_base;
     args->console_col = video_get_col();
     args->console_row = video_get_row();
-    save_sd_state(&args->sd_mmc, &args->sd_fs);
+    save_sd_state(&args->sd_mmc);
-
+    f_unmount("");
 
     /* Jump to Stage 2. */
     stage2_entrypoint(STAGE2_ARGC, stage2_argv);
     return 0;
 }
-

fusee/fusee-primary/src/sd_utils.c

@@ -10,15 +10,13 @@ FATFS sd_fs;
 static int initialized_sd = 0;
 static int mounted_sd = 0;
 
-void save_sd_state(void **mmc, void **ff) {
+void save_sd_state(void **mmc) {
     *mmc = &sd_mmc;
-    *ff = &ff;
 }
-void resume_sd_state(void *mmc, void *ff) {
+
+void resume_sd_state(void *mmc) {
     sd_mmc = *(struct mmc *)mmc;
-    sd_fs = *(FATFS *)ff;
     initialized_sd = 1;
-    mounted_sd = 1;
 }
 
 int initialize_sd(void) {

fusee/fusee-primary/src/sd_utils.h

@@ -5,8 +5,8 @@
 #include "sdmmc.h"
 #include "lib/fatfs/ff.h"
 
-void save_sd_state(void **mmc, void **ff);
+void save_sd_state(void **mmc);
-void resume_sd_state(void *mmc, void *ff);
+void resume_sd_state(void *mmc);
 
 size_t read_sd_file(void *dst, size_t dst_size, const char *filename);
 

fusee/fusee-primary/src/stage2.h

@@ -27,7 +27,6 @@ typedef struct {
     uint32_t console_row;
     uint32_t console_col;
     void *sd_mmc;
-    void *sd_fs;
 } stage2_args_t;
 
 const char *stage2_get_program_path(void);

fusee/fusee-secondary/src/main.c

@@ -6,6 +6,7 @@
 #include "sd_utils.h"
 #include "lib/printk.h"
 #include "display/video_fb.h"
+#include "fs_dev.h"
 
 /* TODO: Add a #define for this size, somewhere. Also, primary can only actually load 0x7000. */
 char g_bct0[0x8000];
@@ -30,7 +31,9 @@ int main(int argc, void **argv) {
         generic_panic();
     }
 
-    resume_sd_state((struct mmc *)args.sd_mmc, (FATFS *)args.sd_fs);
+    resume_sd_state((struct mmc *)args.sd_mmc);
+    fsdev_mount_all();
+    fsdev_set_default_device("sdmc");
 
     /* Copy the BCT0 from unsafe primary memory into our memory. */
     strncpy(g_bct0, args.bct0, sizeof(g_bct0));
@@ -48,6 +51,9 @@ int main(int argc, void **argv) {
 
     printk("Loaded payloads!\n");
 
+    /* Unmount everything (this causes all open files to be flushed and closed) */
+    fsdev_unmount_all();
+
     if (loader_ctx->chainload_entrypoint != NULL) {
         /* TODO: What do we want to do in terms of argc/argv? */
         loader_ctx->chainload_entrypoint(0, NULL);

fusee/fusee-secondary/src/sd_utils.c

@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include "sd_utils.h"
 #include "hwinit.h"
 #include "sdmmc.h"
@@ -6,19 +7,14 @@
 
 /* This is used by diskio.h. */
 struct mmc sd_mmc;
-FATFS sd_fs;
 static int initialized_sd = 0;
-static int mounted_sd = 0;
 
-void save_sd_state(void **mmc, void **ff) {
+void save_sd_state(void **mmc) {
     *mmc = &sd_mmc;
-    *ff = &ff;
 }
-void resume_sd_state(void *mmc, void *ff) {
+void resume_sd_state(void *mmc) {
     sd_mmc = *(struct mmc *)mmc;
-    sd_fs = *(FATFS *)ff;
     initialized_sd = 1;
-    mounted_sd = 1;
 }
 
 int initialize_sd(void) {
@@ -33,33 +29,13 @@ int initialize_sd(void) {
     return initialized_sd;
 }
 
-int mount_sd(void) {
-    if (mounted_sd) {
-        return 1;
-    }
-    if (f_mount(&sd_fs, "", 1) == FR_OK) {
-        printk("Mounted SD card!\n");
-        mounted_sd = 1;
-    }
-    return mounted_sd;
-}
-
 size_t read_sd_file(void *dst, size_t dst_size, const char *filename) {
-    if (!initialized_sd && initialize_sd() == 0) {
+    FILE *file = fopen(filename, "rb");
+    if (file == NULL) {
         return 0;
+    } else {
+        size_t sz = fread(dst, 1, dst_size, file);
+        fclose(file);
+        return sz;
     }
-    if (!mounted_sd && mount_sd() == 0) {
-        return 0;
-    }
-
-    FIL f;
-    if (f_open(&f, filename, FA_READ) != FR_OK) {
-        return 0;
-    }
-
-    UINT br;
-    int res = f_read(&f, dst, dst_size, &br);
-    f_close(&f);
-
-    return res == FR_OK ? (int)br : 0;
 }

fusee/fusee-secondary/src/sd_utils.h

@@ -3,10 +3,9 @@
 
 #include "utils.h"
 #include "sdmmc.h"
-#include "lib/fatfs/ff.h"
 
-void save_sd_state(void **mmc, void **ff);
+void save_sd_state(void **mmc);
-void resume_sd_state(void *mmc, void *ff);
+void resume_sd_state(void *mmc);
 
 size_t read_sd_file(void *dst, size_t dst_size, const char *filename);
 

fusee/fusee-secondary/src/splash_screen.c

@@ -6,7 +6,7 @@
 #include "display/video_fb.h"
 
 void display_splash_screen_bmp(const char *custom_splash_path) {
-    unsigned char *splash_screen = g_default_splash_screen;
+    uint8_t *splash_screen = g_default_splash_screen;
     if (custom_splash_path != NULL && custom_splash_path[0] != '\x00') {
         if (!read_sd_file(splash_screen, sizeof(g_default_splash_screen), custom_splash_path)) {
             printk("Error: Failed to read custom splash screen from %s!\n", custom_splash_path);

fusee/fusee-secondary/src/splash_screen.h

@@ -1,6 +1,8 @@
 #ifndef FUSEE_SPLASH_SCREEN_H
 #define FUSEE_SPLASH_SCREEN_H
 
+#include <stdint.h>
+
 /* TODO: Actually make this a real thing. */
 extern unsigned char g_default_splash_screen[1];
 

fusee/fusee-secondary/src/splash_screen_default.c

@@ -1,3 +1,3 @@
 #include "splash_screen.h"
 
-unsigned char g_default_splash_screen[1] = {0};
+uint8_t g_default_splash_screen[1] = {0};

fusee/fusee-secondary/src/stage2.h

@@ -15,7 +15,6 @@ typedef struct {
     uint32_t console_row;
     uint32_t console_col;
     void *sd_mmc;
-    void *sd_fs;
 } stage2_args_t;
 
 #endif