Disable verification for now & add memcmp32sparse

When the commit with the configuration will be a available, these 3 options will exist:

- Disable verification
- Sparse verification (Fast)
- Full (Slow)

Sparse will take approx 8 minutes for rawnand.bin and Full will take 4.5 hours.

ipl/main.c

@@ -693,6 +693,7 @@ int dump_emmc_verify(sdmmc_storage_t *storage, u32 lba_curr, char* outFilename,
 {
 	FIL fp;
 	u32 prevPct = 200;
+	int res = 0;
 
 	if (f_open(&fp, outFilename, FA_READ) == FR_OK)
 	{
@@ -734,8 +735,12 @@ int dump_emmc_verify(sdmmc_storage_t *storage, u32 lba_curr, char* outFilename,
 				f_close(&fp);
 				return 1;
 			}
-
-			if(memcmp(bufEm, bufSd, num << 9))
+			//TODO: Replace with the config check 2.
+			if (1)
+				res = memcmp32sparse((u32 *)bufEm, (u32 *)bufSd, num << 9);
+			else
+				res = memcmp((u32 *)bufEm, (u32 *)bufSd, num << 9);
+			if(res)
 			{
 				EPRINTFARGS("\nSD card and eMMC data (@LBA %08X),\ndo not match!\n\nVerification failed..\n", num, lba_curr);
 
@@ -911,6 +916,9 @@ int dump_emmc_part(char *sd_path, sdmmc_storage_t *storage, emmc_part_t *part)
 			memset(&fp, 0, sizeof(fp));
 			currPartIdx++;
 
+			//TODO: Replace with the config check.
+			if (1)
+			{
 				// Verify part.
 				if (dump_emmc_verify(storage, lbaStartPart, outFilename, part))
 				{
@@ -919,6 +927,7 @@ int dump_emmc_part(char *sd_path, sdmmc_storage_t *storage, emmc_part_t *part)
 					free(buf);
 					return 0;
 				}
+			}
 
 			if (numSplitParts >= 10 && currPartIdx < 10)
 			{
@@ -1027,6 +1036,9 @@ int dump_emmc_part(char *sd_path, sdmmc_storage_t *storage, emmc_part_t *part)
 	free(buf);
 	f_close(&fp);
 
+	//TODO: Replace with the config check.
+	if (0)
+	{
 		// Verify last part or single file backup.
 		if (dump_emmc_verify(storage, lbaStartPart, outFilename, part))
 		{
@@ -1037,6 +1049,7 @@ int dump_emmc_part(char *sd_path, sdmmc_storage_t *storage, emmc_part_t *part)
 		}
 		else
 			tui_pbar(&gfx_con, 0, gfx_con.y, 100, 0xFF96FF00, 0xFF155500);
+	}
 
 	// Remove partial backup index file if no fatal errors occurred.
 	if(isSmallSdCard)
@@ -1164,8 +1177,10 @@ static void dump_emmc_selected(dumpType_t dumpType)
 	gfx_putc(&gfx_con, '\n');
 	gfx_printf(&gfx_con, "Time taken: %d seconds.\n", (get_tmr() - timer) / 1000000);
 	sdmmc_storage_end(&storage);
-	if (res)
+	if (res && 0) //TODO: Replace with the config check.
 		gfx_printf(&gfx_con, "\n%kFinished and verified!%k\nPress any key...\n",0xFF96FF00, 0xFFCCCCCC);
+	else if (res)
+		gfx_printf(&gfx_con, "\nFinished! Press any key...\n");
 
 out:;
 	sd_unmount();

ipl/util.c

@@ -49,3 +49,31 @@ u32 crc32c(const void *buf, u32 len)
 	}
 	return ~crc;
 }
+
+u32 memcmp32sparse(const u32 *buf1, const u32 *buf2, u32 len)
+{
+	u32 len32 = len / 4;
+
+	if (!(len32 % 32))
+	{
+		while (len32)
+		{
+			len32 -= 32;
+			if(buf1[len32] != buf2[len32])
+				return 1;
+		}
+	}
+	else
+	{
+		while (len32)
+		{
+			len32 -= 32;
+			if(buf1[len32] != buf2[len32])
+				return 1;
+			if (len32 < 32)
+				return 0;
+		}
+	}
+
+	return 0;
+}

ipl/util.h

@@ -34,4 +34,8 @@ void sleep(u32 ticks);
 void exec_cfg(u32 *base, const cfg_op_t *ops, u32 num_ops);
 u32 crc32c(const void *buf, u32 len);
 
+/* This is a faster implementation of memcmp that checks two u32 values */
+/* every 128 Bytes block. Intented for only for Backup and Restore      */
+u32 memcmp32sparse(const u32 *buf1, const u32 *buf2, u32 len);
+
 #endif