1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/util.h b/drivers/net/wireless/marvell/mwifiex/util.h
new file mode 100644
index 0000000000..4699c505c0
--- /dev/null
+++ b/drivers/net/wireless/marvell/mwifiex/util.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * NXP Wireless LAN device driver: utility functions
+ *
+ * Copyright 2011-2020 NXP
+ */
+
+#ifndef _MWIFIEX_UTIL_H_
+#define _MWIFIEX_UTIL_H_
+
+struct mwifiex_private;
+
+struct mwifiex_dma_mapping {
+	dma_addr_t addr;
+	size_t len;
+};
+
+struct mwifiex_cb {
+	struct mwifiex_dma_mapping dma_mapping;
+	union {
+		struct mwifiex_rxinfo rx_info;
+		struct mwifiex_txinfo tx_info;
+	};
+};
+
+/* size/addr for mwifiex_debug_info */
+#define item_size(n)		(sizeof_field(struct mwifiex_debug_info, n))
+#define item_addr(n)		(offsetof(struct mwifiex_debug_info, n))
+
+/* size/addr for struct mwifiex_adapter */
+#define adapter_item_size(n)	(sizeof_field(struct mwifiex_adapter, n))
+#define adapter_item_addr(n)	(offsetof(struct mwifiex_adapter, n))
+
+struct mwifiex_debug_data {
+	char name[32];		/* variable/array name */
+	u32 size;		/* size of the variable/array */
+	size_t addr;		/* address of the variable/array */
+	int num;		/* number of variables in an array */
+};
+
+static inline struct mwifiex_rxinfo *MWIFIEX_SKB_RXCB(struct sk_buff *skb)
+{
+	struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
+
+	BUILD_BUG_ON(sizeof(struct mwifiex_cb) > sizeof(skb->cb));
+	return &cb->rx_info;
+}
+
+static inline struct mwifiex_txinfo *MWIFIEX_SKB_TXCB(struct sk_buff *skb)
+{
+	struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
+
+	return &cb->tx_info;
+}
+
+static inline void mwifiex_store_mapping(struct sk_buff *skb,
+					 struct mwifiex_dma_mapping *mapping)
+{
+	struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
+
+	memcpy(&cb->dma_mapping, mapping, sizeof(*mapping));
+}
+
+static inline void mwifiex_get_mapping(struct sk_buff *skb,
+				       struct mwifiex_dma_mapping *mapping)
+{
+	struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
+
+	memcpy(mapping, &cb->dma_mapping, sizeof(*mapping));
+}
+
+static inline dma_addr_t MWIFIEX_SKB_DMA_ADDR(struct sk_buff *skb)
+{
+	struct mwifiex_dma_mapping mapping;
+
+	mwifiex_get_mapping(skb, &mapping);
+
+	return mapping.addr;
+}
+
+int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf,
+				 struct mwifiex_debug_info *info);
+
+static inline void le16_unaligned_add_cpu(__le16 *var, u16 val)
+{
+	put_unaligned_le16(get_unaligned_le16(var) + val, var);
+}
+
+#endif /* !_MWIFIEX_UTIL_H_ */