rsi: Add RS9113 wireless driver

This patch adds the Redpine Signals' 91x wireless driver.

Signed-off-by: Fariya Fatima <fariyaf@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rsi/rsi_usb.h

@@ -0,0 +1,68 @@
+/**
+ * @section LICENSE
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_USB_INTF__
+#define __RSI_USB_INTF__
+
+#include <linux/usb.h>
+#include "rsi_main.h"
+#include "rsi_common.h"
+
+#define USB_INTERNAL_REG_1           0x25000
+#define RSI_USB_READY_MAGIC_NUM      0xab
+#define FW_STATUS_REG                0x41050012
+
+#define USB_VENDOR_REGISTER_READ     0x15
+#define USB_VENDOR_REGISTER_WRITE    0x16
+#define RSI_USB_TX_HEAD_ROOM         128
+
+#define MAX_RX_URBS                  1
+#define MAX_BULK_EP                  8
+#define MGMT_EP                      1
+#define DATA_EP                      2
+
+struct rsi_91x_usbdev {
+	struct rsi_thread rx_thread;
+	u8 endpoint;
+	struct usb_device *usbdev;
+	struct usb_interface *pfunction;
+	struct urb *rx_usb_urb[MAX_RX_URBS];
+	u8 *tx_buffer;
+	__le16 bulkin_size;
+	u8 bulkin_endpoint_addr;
+	__le16 bulkout_size[MAX_BULK_EP];
+	u8 bulkout_endpoint_addr[MAX_BULK_EP];
+	u32 tx_blk_size;
+	u8 write_fail;
+};
+
+static inline int rsi_usb_check_queue_status(struct rsi_hw *adapter, u8 q_num)
+{
+	/* In USB, there isn't any need to check the queue status */
+	return QUEUE_NOT_FULL;
+}
+
+static inline int rsi_usb_event_timeout(struct rsi_hw *adapter)
+{
+	return EVENT_WAIT_FOREVER;
+}
+
+int rsi_usb_device_init(struct rsi_common *common);
+int rsi_usb_write_register_multiple(struct rsi_hw *adapter, u32 addr,
+				    u8 *data, u32 count);
+void rsi_usb_rx_thread(struct rsi_common *common);
+#endif