[][OpenWrt Dev][Add NMBM support]
[Description]
Add NMBM support
[Release-log]
N/A
Change-Id: I6a64185350eac5034d6470ecaa20761257346854
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/4580547
diff --git a/target/linux/generic/files-5.4/include/nmbm/nmbm.h b/target/linux/generic/files-5.4/include/nmbm/nmbm.h
new file mode 100644
index 0000000..c1be892
--- /dev/null
+++ b/target/linux/generic/files-5.4/include/nmbm/nmbm.h
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/*
+ * Copyright (C) 2020 MediaTek Inc. All Rights Reserved.
+ *
+ * Definitions for NAND Mapped-block Management (NMBM)
+ *
+ * Author: Weijie Gao <weijie.gao@mediatek.com>
+ */
+
+#ifndef _NMBM_H_
+#define _NMBM_H_
+
+#include <nmbm/nmbm-os.h>
+
+enum nmbm_log_category {
+ NMBM_LOG_DEBUG,
+ NMBM_LOG_INFO,
+ NMBM_LOG_WARN,
+ NMBM_LOG_ERR,
+ NMBM_LOG_EMERG,
+
+ __NMBM_LOG_MAX
+};
+
+enum nmbm_oob_mode {
+ NMBM_MODE_PLACE_OOB,
+ NMBM_MODE_AUTO_OOB,
+ NMBM_MODE_RAW,
+
+ __NMBM_MODE_MAX
+};
+
+struct nmbm_lower_device {
+ uint32_t max_ratio;
+ uint32_t max_reserved_blocks;
+ int flags;
+
+ uint64_t size;
+ uint32_t erasesize;
+ uint32_t writesize;
+ uint32_t oobsize;
+ uint32_t oobavail;
+
+ void *arg;
+ int (*reset_chip)(void *arg);
+
+ /*
+ * read_page:
+ * return 0 if succeeds
+ * return positive number for ecc error
+ * return negative number for other errors
+ */
+ int (*read_page)(void *arg, uint64_t addr, void *buf, void *oob, enum nmbm_oob_mode mode);
+ int (*write_page)(void *arg, uint64_t addr, const void *buf, const void *oob, enum nmbm_oob_mode mode);
+ int (*erase_block)(void *arg, uint64_t addr);
+
+ int (*is_bad_block)(void *arg, uint64_t addr);
+ int (*mark_bad_block)(void *arg, uint64_t addr);
+
+ /* OS-dependent logging function */
+ void (*logprint)(void *arg, enum nmbm_log_category level, const char *fmt, va_list ap);
+};
+
+struct nmbm_instance;
+
+/* Create NMBM if management area not found, or not complete */
+#define NMBM_F_CREATE 0x01
+
+size_t nmbm_calc_structure_size(struct nmbm_lower_device *nld);
+int nmbm_attach(struct nmbm_lower_device *nld, struct nmbm_instance *ni);
+int nmbm_detach(struct nmbm_instance *ni);
+
+enum nmbm_log_category nmbm_set_log_level(struct nmbm_instance *ni,
+ enum nmbm_log_category level);
+
+int nmbm_erase_block_range(struct nmbm_instance *ni, uint64_t addr,
+ uint64_t size, uint64_t *failed_addr);
+int nmbm_read_single_page(struct nmbm_instance *ni, uint64_t addr, void *data,
+ void *oob, enum nmbm_oob_mode mode);
+int nmbm_read_range(struct nmbm_instance *ni, uint64_t addr, size_t size,
+ void *data, enum nmbm_oob_mode mode, size_t *retlen);
+int nmbm_write_single_page(struct nmbm_instance *ni, uint64_t addr,
+ const void *data, const void *oob,
+ enum nmbm_oob_mode mode);
+int nmbm_write_range(struct nmbm_instance *ni, uint64_t addr, size_t size,
+ const void *data, enum nmbm_oob_mode mode,
+ size_t *retlen);
+
+int nmbm_check_bad_block(struct nmbm_instance *ni, uint64_t addr);
+int nmbm_mark_bad_block(struct nmbm_instance *ni, uint64_t addr);
+
+uint64_t nmbm_get_avail_size(struct nmbm_instance *ni);
+
+int nmbm_get_lower_device(struct nmbm_instance *ni, struct nmbm_lower_device *nld);
+
+#endif /* _NMBM_H_ */