Staging: add CSR wifi module

This consists of two modules, the driver, and a "helper" module that is
just a wrapper around common kernel functions.  The wrapper module will
be removed soon, but for now it's needed.

These files were based on the csr-linux-wifi-5.0.3-oss.tar.gz package
provided by CSR and Blue Giga, and is covered under the license
specified in the LICENSE.txt file (basically dual BSD and GPLv2).  The
files were flattened out of the deep directory mess they were originally
in, and a few EXPORT_SYMBOL_GPL() were added in order for everything to
link properly with the helper module setup.

Cc: Mikko Virkkilä <mikko.virkkila@bluegiga.com>
Cc: Lauri Hintsala <Lauri.Hintsala@bluegiga.com>
Cc: Riku Mettälä <riku.mettala@bluegiga.com>
Cc: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 124 insertions, 0 deletions

diff --git a/drivers/staging/csr/unifi_wext.h b/drivers/staging/csr/unifi_wext.h
new file mode 100644
index 000000000000..ac86df92d955
--- /dev/null
+++ b/drivers/staging/csr/unifi_wext.h
@@ -0,0 +1,124 @@
+/*
+ *****************************************************************************
+ *
+ * FILE : unifi_wext.h
+ *
+ * PURPOSE : Private header file for unifi driver support to wireless extensions.
+ *
+ * Copyright (C) 2005-2008 by Cambridge Silicon Radio Ltd.
+ *
+ * Refer to LICENSE.txt included with this source code for details on
+ * the license terms.
+ *
+*****************************************************************************
+ */
+#ifndef __LINUX_UNIFI_WEXT_H__
+#define __LINUX_UNIFI_WEXT_H__ 1
+
+#include <linux/kernel.h>
+#include <net/iw_handler.h>
+#include "csr_wifi_sme_prim.h"
+
+/*
+ *      wext.c
+ */
+/* A few details needed for WEP (Wireless Equivalent Privacy) */
+#define UNIFI_MAX_KEY_SIZE      16
+#define NUM_WEPKEYS              4
+#define SMALL_KEY_SIZE           5
+#define LARGE_KEY_SIZE          13
+typedef struct wep_key_t {
+    int len;
+    unsigned char key[UNIFI_MAX_KEY_SIZE];  /* 40-bit and 104-bit keys */
+} wep_key_t;
+
+#define UNIFI_SCAN_ACTIVE       0
+#define UNIFI_SCAN_PASSIVE      1
+#define UNIFI_MAX_SSID_LEN      32
+
+#define MAX_WPA_IE_LEN 64
+#define MAX_RSN_IE_LEN 255
+
+/*
+ * Function to register in the netdev to report wireless stats.
+ */
+struct iw_statistics *unifi_get_wireless_stats(struct net_device *dev);
+
+void uf_sme_wext_set_defaults(unifi_priv_t *priv);
+
+
+/*
+ *      wext_events.c
+ */
+/* Functions to generate Wireless Extension events */
+void wext_send_scan_results_event(unifi_priv_t *priv);
+void wext_send_assoc_event(unifi_priv_t *priv, unsigned char *bssid,
+                           unsigned char *req_ie, int req_ie_len,
+                           unsigned char *resp_ie, int resp_ie_len,
+                           unsigned char *scan_ie, unsigned int scan_ie_len);
+void wext_send_disassoc_event(unifi_priv_t *priv);
+void wext_send_michaelmicfailure_event(unifi_priv_t *priv,
+                                       CsrUint16 count, CsrWifiMacAddress address,
+                                       CsrWifiSmeKeyType keyType, CsrUint16 interfaceTag);
+void wext_send_pmkid_candidate_event(unifi_priv_t *priv, CsrWifiMacAddress bssid, CsrBool preauth_allowed, CsrUint16 interfaceTag);
+void wext_send_started_event(unifi_priv_t *priv);
+
+
+static inline int
+uf_iwe_stream_add_point(struct iw_request_info *info, char *start, char *stop,
+                        struct iw_event *piwe, char *extra)
+{
+    char *new_start;
+
+    new_start = iwe_stream_add_point(
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) || defined (IW_REQUEST_FLAG_COMPAT)
+                                     info,
+#endif
+                                     start, stop, piwe, extra);
+    if (unlikely(new_start == start))
+    {
+        return -E2BIG;
+    }
+
+    return (new_start - start);
+}
+
+
+static inline int
+uf_iwe_stream_add_event(struct iw_request_info *info, char *start, char *stop,
+                        struct iw_event *piwe, int len)
+{
+    char *new_start;
+
+    new_start = iwe_stream_add_event(
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) || defined(IW_REQUEST_FLAG_COMPAT)
+                                     info,
+#endif
+                                     start, stop, piwe, len);
+    if (unlikely(new_start == start)) {
+        return -E2BIG;
+    }
+
+    return (new_start - start);
+}
+
+static inline int
+uf_iwe_stream_add_value(struct iw_request_info *info, char *stream, char *start,
+                        char *stop, struct iw_event *piwe, int len)
+{
+    char *new_start;
+
+    new_start = iwe_stream_add_value(
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) || defined(IW_REQUEST_FLAG_COMPAT)
+                                     info,
+#endif
+                                     stream, start, stop, piwe, len);
+    if (unlikely(new_start == start)) {
+        return -E2BIG;
+    }
+
+    return (new_start - start);
+}
+
+
+#endif /* __LINUX_UNIFI_WEXT_H__ */