From e302bb6edcc4789143db354cd04bfbd30d86c6df Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Date: Mon, 15 Dec 2025 17:14:04 +0100
Subject: [PATCH] spiFlash: added FlashDataSection to handle bitstream per
 sections when gap or 0xff area are present

---
 src/spiFlash.hpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/spiFlash.hpp b/src/spiFlash.hpp
index 7270933..c1d5bf6 100644
--- a/src/spiFlash.hpp
+++ b/src/spiFlash.hpp
@@ -12,6 +12,32 @@
 #include "spiInterface.hpp"
 #include "spiFlashdb.hpp"
 
+/* Flash memory section record
+ * one instance per section when the bitstream contains gap
+ */
+class FlashDataSection {
+	public:
+		explicit FlashDataSection(uint32_t start_addr):_start_addr(start_addr) {}
+
+		/* append data set to existing */
+		void append(const uint8_t *data, size_t length) {
+			if (data && length > 0)
+				_record.insert(_record.end(), data, data + length);
+		}
+		/* Return section start addr */
+		uint32_t getStartAddr() const noexcept { return _start_addr; }
+		/* Return last data addr */
+		uint32_t getCurrentAddr() const noexcept { return _start_addr + static_cast<uint32_t>(_record.size()); }
+		/* Return section length */
+		size_t getLength() const noexcept { return _record.size(); }
+		/* Return section data set */
+		const std::vector<uint8_t> &getRecord() const noexcept { return _record; }
+
+	private:
+		uint32_t _start_addr; // Section Start Address
+		std::vector<uint8_t> _record; // Data set
+};
+
 class SPIFlash {
 	public:
 		SPIFlash(SPIInterface *spi, bool unprotect, int8_t verbose);