Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / wireless / mwifiex / util.h

diff --git a/kernel/drivers/net/wireless/mwifiex/util.h b/kernel/drivers/net/wireless/mwifiex/util.h
new file mode 100644 (file)
index 0000000..b541d66
--- /dev/null
+++ b/kernel/drivers/net/wireless/mwifiex/util.h
@@ -0,0 +1,96 @@
+/*
+ * Marvell Wireless LAN device driver: utility functions
+ *
+ * Copyright (C) 2011-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#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)           (FIELD_SIZEOF(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)   (FIELD_SIZEOF(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);
+
+#endif /* !_MWIFIEX_UTIL_H_ */