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path: root/drivers/net/wireless/mwifiex/cfg80211.c
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2011-08-12mwifiex: use cfg80211 dynamic scan table and cfg80211_get_bss APIAmitkumar Karwar1-164/+43
Instead of maintaining static scan table in driver, scan list is sent to cfg80211 stack (after parsing each scan command response). In assoc handler (for infra and ibss network) requested BSS information is retrieved using cfg80211_get_bss() API. With the changes above some redundant code are removed. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08mwifiex: remove wireless.h inclusion and fix resulting bugsBing Zhao1-1/+1
replace IW_MAX_AP & IW_CUSTOM_MAX with local definitions and remove usage of struct iw_statistics. Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-13mwifiex: add cfg80211 handler for set_bitrate_maskYogesh Ashok Powar1-0/+54
Currently, setting only legacy bitrates on 2.4GHz band are supported. Mode 802.11b/g/bg is enabled based on bitrates selection. If only CCK bitrates selected then 802.11b mode is enabled. If only OFDM bitrates are selected then 802.11g mode is enabled. For both: CCK and OFDM rates 802.11bg mixed mode is enabled. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-08mwifiex: fix regression in WEP security modeAmitkumar Karwar1-1/+1
Htcapinfo is unnecessarily sent in assoc request in WEP security due to a regression introduced by commit 2be50b8df53 (mwifiex: remove redundant encryption_mode mapping). The issue is fixed in this patch. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-15mwifiex: Fixing NULL pointer dereferenceYogesh Ashok Powar1-0/+2
Following OOPS was seen when booting with card inserted BUG: unable to handle kernel NULL pointer dereference at 0000004c IP: [<f8b7718c>] cfg80211_get_drvinfo+0x21/0x115 [cfg80211] *pde = 00000000 Oops: 0000 [#1] SMP Modules linked in: iwl3945 iwl_legacy mwifiex_sdio mac80211 11 sdhci_pci sdhci pl2303 'ethtool' on the mwifiex device returned this OOPS as wiphy_dev() returned NULL. Adding missing set_wiphy_dev() call to fix the problem. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-11mwifiex: cleanup ioctl.hBing Zhao1-7/+2
Some structures and macros in ioctl.h are redundant or no longer used. Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-10mwifiex: fix null derefs, mem leaks and triviaChristoph Fritz1-1/+4
This patch: - adds kfree() where necessary - prevents potential null dereferences - makes use of kfree_skb() - replaces -1 for failed kzallocs with -ENOMEM Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Reviewed-by: Kiran Divekar <dkiran@marvell.com> Tested-by: Amitkumar Karwar <akarwar@marvell.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-05mwifiex: remove unnecessary variable initializationYogesh Ashok Powar1-14/+9
Skip initialization of local variables with some default values if the values are not going to be used further down the code path. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-05mwifiex: fix simultaneous assoc and scan issueAmitkumar Karwar1-4/+7
When scan and assoc (infra/ibss) commands are simultaneously given in two terminals, association response is erroneously served while serving the scan response. mwifiex_cfg80211_results() is the common routine for sending ioctl (scan, assoc etc.) results to cfg80211 stack. In above scenario even if the common routine is called for scan ioctl context, it also tries to send information about assoc ioctl to cfg80211 because "priv->assoc_request/priv->ibss_join_request" flag is on at that time. Fix the issue by updating request variable after assoc handling and modifying the variable check in mwifiex_cfg80211_results. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-28mwifiex: HT capability information handlingAmitkumar Karwar1-7/+35
1) Initialise HT capabilities in cfg80211 properly. 2) Cfg80211 stack may modify "sband->ht_cap" to disable 40Mhz operation in 2.4GHz band (after recent patch "cfg80211: module_param to disable HT40 in 2.4GHz band") Therefore read "sband->ht_cap" instead of an adapter variable "hw_dot_11n_dev_cap" to get HT capabilities. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-28mwifiex: check firmware capabilities while initialising 5GHz band parametersAmitkumar Karwar1-8/+11
There are some SD8787 cards which don't support 5GHz band. Therefore initialise 5GHz band parameters only if hardware supports the band. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19mwifiex: remove redundant local variables and commentsYogesh Ashok Powar1-86/+45
Remove some local variables (mainly function return values) that are used only once. Also, one dummy function and some wordy comments are removed. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-14mwifiex: remove redundant "return" at end of void functionYogesh Ashok Powar1-2/+0
The return statement at the last line of a void function is not necessary. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-14mwifiex: cleanup ioctl wait queue and abstraction layerAmitkumar Karwar1-68/+45
1) remove mwifiex_alloc_fill_wait_queue() and mwifiex_request_ioctl() 2) avoid dynamic allocation of wait queue 3) remove unnecessary mwifiex_error_code macros that were used mainly by the wait queue status code 4) remove some abstraction functions 5) split mwifiex_prepare_cmd() to mwifiex_send_cmd_async() and mwifiex_send_sync() to handle asynchronous and synchronous commands respectively Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-07mwifiex: remove redundant encryption_mode mappingYogesh Ashok Powar1-66/+10
remove MWIFIEX_ENCRYPTION_MODE_ and use WLAN_CIPHER_SUITE_ macros directly Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-07mwifiex: return success in set_default_key for WPA/WPA2Amitkumar Karwar1-0/+4
When testing wpa_supplicant with 'nl80211' driver to connect to an AP with WPA/WPA2 security, we notice the followings: 1) add_key is called firstly with the key from cfg80211 2) set_defaut_key is called next set_default_key() is specific to WEP keys and should not be called in case of WPA/WPA2 security. The set_default_key() won't be called if wpa_supplicant uses "-Dwext" option, but it's been called if "-Dnl80211" option is specified. We can fix this issue by adding a check to return from set_default_key() if WEP key is not configured. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-05mwifiex: remove MWIFIEX_AUTH_MODE_ macrosMarc Yang1-4/+4
replace them with NL80211_AUTHTYPE_ macros Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-05mwifiex: remove MWIFIEX_BSS_MODE_ macrosBing Zhao1-46/+39
replace them with NL80211_IFTYPE_ macros Also remove redundant functions mwifiex_drv_get_mode() and mwifiex_bss_ioctl_mode(). Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-05mwifiex: use IEEE80211_HT_CAP_ macros for 11n cap_infoMarc Yang1-2/+1
The hw_dot_11n_dev_cap reported by firmware hw_spec has different format than the 11n capabilities. Hence a lot of SET_ and RESET_ bit operation macros were used to convert the dev_cap format to 11n capability format. However the locally defined 11n ht_cap macros are not necessary as we can use IEEE80211_HT_CAP_ macros directly. The 32-bit dev_cap bitmap is added as comment to explain the mapping between firmware and 11n spec. Some unused macros and unnecessary adapter variables are also removed. Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-05mwifiex: remove unnecessary _set_auth functionsMarc Yang1-9/+8
mwifiex_set_encrypt_mode() mwifiex_set_auth_mode() mwifiex_set_auth() These functions are confusing and misleading. And they are really not needed at all. Some unused definitions are also removed. Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-30wireless: mwifiex: initial commit for Marvell mwifiex driverBing Zhao1-0/+1517
This driver adds WiFi support for Marvell 802.11n based chipsets with SDIO interface. Currently only SD8787 is supported. More chipsets will be supported later. drivers/net/wireless/mwifiex/ Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Ramesh Radhakrishnan <rramesh@marvell.com> Signed-off-by: Frank Huang <frankh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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