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, 276 insertions, 0 deletions

diff --git a/drivers/staging/csr/unifi_native.h b/drivers/staging/csr/unifi_native.h
new file mode 100644
index 00000000000..0015ec2cdb0
--- /dev/null
+++ b/drivers/staging/csr/unifi_native.h
@@ -0,0 +1,276 @@
+/*
+ *****************************************************************************
+ *
+ * FILE : unifi_native.h
+ *
+ * PURPOSE : Private header file for unifi driver support to wireless extensions.
+ *
+ *           UDI = UniFi Debug Interface
+ *
+ * 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_NATIVE_H__
+#define __LINUX_UNIFI_NATIVE_H__ 1
+
+#include <linux/kernel.h>
+#include <linux/if_arp.h>
+
+
+/*
+ *      scan.c wext.c autojoin.c
+ */
+/* Structure to hold results of a scan */
+typedef struct scan_info {
+
+/*    CSR_MLME_SCAN_INDICATION msi; */
+
+    unsigned char *info_elems;
+    int info_elem_length;
+
+} scan_info_t;
+
+
+#define IE_VECTOR_MAXLEN 1024
+
+#ifdef CSR_SUPPORT_WEXT
+/*
+ * Structre to hold the wireless network configuration info.
+ */
+struct wext_config {
+
+    /* Requested channel when setting up an adhoc network */
+    int channel;
+
+    /* wireless extns mode: IW_MODE_AUTO, ADHOC, INFRA, MASTER ... MONITOR */
+    int mode;
+
+    /* The capabilities of the currently joined network */
+    int capability;
+
+    /* The interval between beacons if we create an IBSS */
+    int beacon_period;
+
+    /*
+    * Power-save parameters
+    */
+    /* The listen interval to ask for in Associate req. */
+    int assoc_listen_interval;
+    /* Power-mode to put UniFi into */
+
+    unsigned char desired_ssid[UNIFI_MAX_SSID_LEN];     /* the last ESSID set by SIOCSIWESSID */
+    int power_mode;
+    /* Whether to wake for broadcast packets (using DTIM interval) */
+    int wakeup_for_dtims;
+
+    /* Currently selected WEP Key ID (0..3) */
+    int wep_key_id;
+
+    wep_key_t wep_keys[NUM_WEPKEYS];
+
+/*    CSR_AUTHENTICATION_TYPE auth_type; */
+    int privacy;
+
+    u32 join_failure_timeout;
+    u32 auth_failure_timeout;
+    u32 assoc_failure_timeout;
+
+    unsigned char generic_ie[IE_VECTOR_MAXLEN];
+    int generic_ie_len;
+
+    struct iw_statistics wireless_stats;
+
+
+    /* the ESSID we are currently associated to */
+    unsigned char current_ssid[UNIFI_MAX_SSID_LEN];
+    /* the BSSID we are currently associated to */
+    unsigned char current_bssid[6];
+
+    /*
+    * IW_AUTH_WPA_VERSION_DISABLED 0x00000001
+    * IW_AUTH_WPA_VERSION_WPA      0x00000002
+    * IW_AUTH_WPA_VERSION_WPA2     0x00000004
+    */
+    unsigned char wpa_version;
+
+    /*
+     * cipher selection:
+    * IW_AUTH_CIPHER_NONE	0x00000001
+    * IW_AUTH_CIPHER_WEP40	0x00000002
+    * IW_AUTH_CIPHER_TKIP	0x00000004
+    * IW_AUTH_CIPHER_CCMP	0x00000008
+    * IW_AUTH_CIPHER_WEP104	0x00000010
+    */
+    unsigned char pairwise_cipher_used;
+    unsigned char group_cipher_used;
+
+    unsigned int frag_thresh;
+    unsigned int rts_thresh;
+
+    /* U-APSD value, send with Association Request to WMM Enabled APs */
+    unsigned char wmm_bss_uapsd_mask;
+    /* The WMM capabilities of the selected BSS */
+    unsigned int bss_wmm_capabilities;
+
+    /* Flag to prevent a join when the ssid is set */
+    int disable_join_on_ssid_set;
+
+    /* Scan info */
+#define UNIFI_MAX_SCANS 32
+    scan_info_t scan_list[UNIFI_MAX_SCANS];
+    int num_scan_info;
+
+    /* Flag on whether non-802.1x packets are allowed out */
+    CsrWifiRouterPortAction block_controlled_port;
+
+    /* Flag on whether we have completed an authenticate/associate process */
+    unsigned int flag_associated        : 1;
+}; /* struct wext_config */
+
+#endif /* CSR_SUPPORT_WEXT */
+
+
+/*
+ *      wext.c
+ */
+/*int mlme_set_protection(unifi_priv_t *priv, unsigned char *addr,
+                        CSR_PROTECT_TYPE prot, CSR_KEY_TYPE key_type);
+*/
+
+/*
+ * scan.c
+ */
+/*
+void unifi_scan_indication_handler(unifi_priv_t *priv,
+                                   const CSR_MLME_SCAN_INDICATION *msg,
+                                   const unsigned char *extra,
+                                   unsigned int len);
+*/
+void unifi_clear_scan_table(unifi_priv_t *priv);
+scan_info_t *unifi_get_scan_report(unifi_priv_t *priv, int index);
+
+
+/*
+ * Utility functions
+ */
+const unsigned char *unifi_find_info_element(int id,
+                                             const unsigned char *info,
+                                             int len);
+int unifi_add_info_element(unsigned char *info,
+                           int ie_id,
+                           const unsigned char *ie_data,
+                           int ie_len);
+
+/*
+ *      autojoin.c
+ */
+/* Higher level fns */
+int unifi_autojoin(unifi_priv_t *priv, const char *ssid);
+/*
+int unifi_do_scan(unifi_priv_t *priv, int scantype, CSR_BSS_TYPE bsstype,
+                  const char *ssid, int ssid_len);
+*/
+int unifi_set_powermode(unifi_priv_t *priv);
+int unifi_join_ap(unifi_priv_t *priv, scan_info_t *si);
+int unifi_join_bss(unifi_priv_t *priv, unsigned char *macaddr);
+int unifi_leave(unifi_priv_t *priv);
+unsigned int unifi_get_wmm_bss_capabilities(unifi_priv_t *priv,
+                                            unsigned char *ie_vector,
+                                            int ie_len, int *ap_capabilities);
+
+/*
+ * Status and management.
+ */
+int uf_init_wext_interface(unifi_priv_t *priv);
+void uf_deinit_wext_interface(unifi_priv_t *priv);
+
+/*
+ * Function to reset UniFi's 802.11 state by sending MLME-RESET.req
+ */
+int unifi_reset_state(unifi_priv_t *priv, unsigned char *macaddr, unsigned char set_default_mib);
+
+
+/*
+ *      mlme.c
+ */
+/* Abort an MLME operation - useful in error recovery */
+int uf_abort_mlme(unifi_priv_t *priv);
+
+int unifi_mlme_blocking_request(unifi_priv_t *priv, ul_client_t *pcli,
+                                CSR_SIGNAL *sig, bulk_data_param_t *data_ptrs,
+                                int timeout);
+void unifi_mlme_copy_reply_and_wakeup_client(ul_client_t *pcli,
+                                             CSR_SIGNAL *signal, int signal_len,
+                                             const bulk_data_param_t *bulkdata);
+
+/*
+ * Utility functions
+ */
+const char *lookup_reason_code(int reason);
+const char *lookup_result_code(int result);
+
+
+/*
+ *      sme_native.c
+ */
+int uf_sme_init(unifi_priv_t *priv);
+void uf_sme_deinit(unifi_priv_t *priv);
+int sme_sys_suspend(unifi_priv_t *priv);
+int sme_sys_resume(unifi_priv_t *priv);
+int sme_mgt_wifi_on(unifi_priv_t *priv);
+
+/* Callback for event logging to SME clients (unifi_manager) */
+void sme_native_log_event(ul_client_t *client,
+                          const u8 *sig_packed, int sig_len,
+                          const bulk_data_param_t *bulkdata,
+                          int dir);
+
+void sme_native_mlme_event_handler(ul_client_t *pcli,
+                                   const u8 *sig_packed, int sig_len,
+                                   const bulk_data_param_t *bulkdata,
+                                   int dir);
+
+/* Task to query statistics from the MIB */
+#define UF_SME_STATS_WQ_TIMEOUT     2000    /* in msecs */
+void uf_sme_stats_wq(struct work_struct *work);
+
+void uf_native_process_udi_signal(ul_client_t *pcli,
+                                  const u8 *packed_signal,
+                                  int packed_signal_len,
+                                  const bulk_data_param_t *bulkdata, int dir);
+#if 0
+/*
+ * Choose one of these if available in linux/if_arp.h:
+ *  #define UNIFI_SNIFF_ARPHRD ARPHRD_IEEE80211_RADIOTAP
+ *  #define UNIFI_SNIFF_ARPHRD ARPHRD_IEEE80211_PRISM
+ *
+ * Radiotap is the newer standard for softmac WLAN devices, it works with
+ * Wireshark but not Ethereal (due to a bug in the Ethereal dissector).
+ * Prism is an older (less desirable) format but it does work with Ethereal.
+ */
+#ifdef ARPHRD_IEEE80211_RADIOTAP
+#define UNIFI_SNIFF_ARPHRD ARPHRD_IEEE80211_RADIOTAP
+#else
+#ifdef ARPHRD_IEEE80211_PRISM
+#define UNIFI_SNIFF_ARPHRD ARPHRD_IEEE80211_PRISM
+#endif
+#endif
+#endif
+
+#ifdef UNIFI_SNIFF_ARPHRD
+/*
+ * monitor.c
+ */
+int uf_start_sniff(unifi_priv_t *priv);
+/*
+void ma_sniffdata_ind(void *ospriv,
+                      const CSR_MA_SNIFFDATA_INDICATION *ind,
+                      const bulk_data_param_t *bulkdata);
+*/
+#endif /* ARPHRD_IEEE80211_PRISM */
+
+#endif /* __LINUX_UNIFI_NATIVE_H__ */