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The following commit(s) were added to refs/heads/master by this push:
new cb980cc977 arch/esp32s3_partition: Read data from SPI Flash at
designated address (with decryption)
cb980cc977 is described below
commit cb980cc9776f865b88268936a3a1d1fc525eddac
Author: nuttxs <zhaoqing.zh...@sony.com>
AuthorDate: Wed Jan 8 19:14:47 2025 +0800
arch/esp32s3_partition: Read data from SPI Flash
at designated address (with decryption)
---
arch/xtensa/src/esp32s3/esp32s3_partition.c | 48 +++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/arch/xtensa/src/esp32s3/esp32s3_partition.c
b/arch/xtensa/src/esp32s3/esp32s3_partition.c
index 93d949b9d6..950aed6ae0 100644
--- a/arch/xtensa/src/esp32s3/esp32s3_partition.c
+++ b/arch/xtensa/src/esp32s3/esp32s3_partition.c
@@ -934,6 +934,54 @@ int esp32s3_partition_read(const char *label, size_t
offset, void *buf,
return OK;
}
+/****************************************************************************
+ * Name: esp32s3_partition_read_decrypt
+ *
+ * Description:
+ * Read data from SPI Flash at designated address (with decryption)
+ *
+ * Input Parameters:
+ * label - Partition label
+ * offset - Offset in SPI Flash
+ * buf - Data buffer pointer
+ * size - Data number
+ *
+ * Returned Value:
+ * 0 if success or a negative value if fail.
+ *
+ ****************************************************************************/
+
+int esp32s3_partition_read_decrypt(const char *label, size_t offset,
+ void *buf, size_t size)
+{
+ int ret;
+ int partion_offset;
+ DEBUGASSERT(label != NULL && buf != NULL);
+ struct mtd_dev_s *mtd = esp32s3_spiflash_encrypt_mtd();
+ if (!mtd)
+ {
+ ferr("ERROR: Failed to get SPI flash MTD\n");
+ return -ENOSYS;
+ }
+
+ partion_offset = partition_get_offset(label, strlen(label));
+ if (partion_offset < 0)
+ {
+ ferr("ERROR: Failed to get partition: %s offset\n", label);
+ return partion_offset;
+ }
+
+ ret = MTD_READ(mtd, partion_offset + offset,
+ size, (uint8_t *)buf);
+ if (ret != size)
+ {
+ ferr("ERROR: Failed to get read data from MTD\n");
+ return -EIO;
+ }
+
+ return OK;
+}
+
/****************************************************************************
* Name: esp32s3_partition_write
*
