From 2d2433031c533965fb178a3491d0aa9b81b88c76 Mon Sep 17 00:00:00 2001
From: Benjamin Wiegand <ben.gitea@wiegand.pw>
Date: Sun, 16 Jun 2024 20:30:22 -0700
Subject: [PATCH] redirect sd card to eMMC

---
 bdk/storage/sd.c | 117 ++++-------------------------------------------
 bdk/storage/sd.h |   8 ++--
 2 files changed, 15 insertions(+), 110 deletions(-)

diff --git a/bdk/storage/sd.c b/bdk/storage/sd.c
index f2a22ed..d2fc591 100644
--- a/bdk/storage/sd.c
+++ b/bdk/storage/sd.c
@@ -35,42 +35,29 @@ static u16  sd_errors[3] = { 0 }; // Init and Read/Write errors.
 static u32  sd_mode = SD_DEFAULT_SPEED;
 
 
-sdmmc_t sd_sdmmc;
-sdmmc_storage_t sd_storage;
-FATFS sd_fs;
-
 void sd_error_count_increment(u8 type)
 {
-	switch (type)
-	{
-	case SD_ERROR_INIT_FAIL:
-		sd_errors[0]++;
-		break;
-	case SD_ERROR_RW_FAIL:
-		sd_errors[1]++;
-		break;
-	case SD_ERROR_RW_RETRY:
-		sd_errors[2]++;
-		break;
-	}
+	emmc_error_count_increment(type);
 }
 
 u16 *sd_get_error_count()
 {
-	return sd_errors;
+	return emmc_get_error_count();
 }
 
 bool sd_get_card_removed()
 {
-	if (insertion_event && !sdmmc_get_sd_inserted())
-		return true;
+	// if (insertion_event && !sdmmc_get_sd_inserted())
+	// 	return true;
 
+	// you probably wouldn't want to remove the nand while the system is powered on anyways.
 	return false;
 }
 
 bool sd_get_card_initialized()
 {
-	return sd_init_done;
+	// return sd_init_done;
+	return true;
 }
 
 bool sd_get_card_mounted()
@@ -85,96 +72,12 @@ u32 sd_get_mode()
 
 int sd_init_retry(bool power_cycle)
 {
-	u32 bus_width = SDMMC_BUS_WIDTH_4;
-#ifndef BDK_SDMMC_UHS_DDR200_SUPPORT
-	u32 type = SDHCI_TIMING_UHS_SDR104;
-#else
-	u32 type = SDHCI_TIMING_UHS_DDR200;
-#endif
-
-	// Power cycle SD card.
-	if (power_cycle)
-	{
-		sd_mode--;
-		sdmmc_storage_end(&sd_storage);
-	}
-
-	// Get init parameters.
-	switch (sd_mode)
-	{
-	case SD_INIT_FAIL: // Reset to max.
-		return 0;
-
-	case SD_1BIT_HS25:
-		bus_width = SDMMC_BUS_WIDTH_1;
-		type = SDHCI_TIMING_SD_HS25;
-		break;
-
-	case SD_4BIT_HS25:
-		type = SDHCI_TIMING_SD_HS25;
-		break;
-
-	case SD_UHS_SDR82:
-		type = SDHCI_TIMING_UHS_SDR82;
-		break;
-
-	case SD_UHS_SDR104:
-		type = SDHCI_TIMING_UHS_SDR104;
-		break;
-
-#ifdef BDK_SDMMC_UHS_DDR200_SUPPORT
-	case SD_UHS_DDR208:
-		type = SDHCI_TIMING_UHS_DDR200;
-		break;
-#endif
-
-	default:
-		sd_mode = SD_DEFAULT_SPEED;
-		break;
-	}
-
-	int res = sdmmc_storage_init_sd(&sd_storage, &sd_sdmmc, bus_width, type);
-	if (res)
-	{
-		sd_init_done    = true;
-		insertion_event = true;
-	}
-	else
-		sd_init_done = false;
-
-	return res;
+	return emmc_init_retry(power_cycle);
 }
 
 bool sd_initialize(bool power_cycle)
 {
-	if (power_cycle)
-		sdmmc_storage_end(&sd_storage);
-
-	int res = !sd_init_retry(false);
-
-	while (true)
-	{
-		if (!res)
-			return true;
-		else if (!sdmmc_get_sd_inserted()) // SD Card is not inserted.
-		{
-			sd_mode = SD_DEFAULT_SPEED;
-			break;
-		}
-		else
-		{
-			sd_errors[SD_ERROR_INIT_FAIL]++;
-
-			if (sd_mode == SD_INIT_FAIL)
-				break;
-			else
-				res = !sd_init_retry(true);
-		}
-	}
-
-	sdmmc_storage_end(&sd_storage);
-
-	return false;
+	return emmc_initialize(power_cycle);
 }
 
 bool sd_mount()
@@ -239,7 +142,7 @@ static void _sd_deinit(bool deinit)
 }
 
 void sd_unmount() { _sd_deinit(false); }
-void sd_end()     { _sd_deinit(true); }
+void sd_end()     { emmc_end(); }
 
 bool sd_is_gpt()
 {
diff --git a/bdk/storage/sd.h b/bdk/storage/sd.h
index 1008b65..9db76c8 100644
--- a/bdk/storage/sd.h
+++ b/bdk/storage/sd.h
@@ -21,6 +21,7 @@
 #include <storage/sdmmc.h>
 #include <storage/sdmmc_driver.h>
 #include <libs/fatfs/ff.h>
+#include <storage/emmc.h>
 
 #define SD_BLOCKSIZE SDMMC_DAT_BLOCKSIZE
 
@@ -44,9 +45,10 @@ enum
 	SD_ERROR_RW_RETRY  = 2
 };
 
-extern sdmmc_t sd_sdmmc;
-extern sdmmc_storage_t sd_storage;
-extern FATFS sd_fs;
+// redirect to emmc variables
+#define sd_sdmmc emmc_sdmmc
+#define sd_storage emmc_storage
+#define sd_fs emmc_fs
 
 void sd_error_count_increment(u8 type);
 u16 *sd_get_error_count();