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path: root/drivers/net/wireless/rtlwifi/usb.c
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2012-12-07rtlwifi: remove __dev* attributesBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-24rtlwifi: pass rx setup error code to callerChristian Lamparter1-1/+1
If _rtl_usb_receive fails, the device is probably not ready. Hence the error code should be passed to the caller, so it can react accordingly and notify the user. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-07rtlwifi: rtl8192c: rtl8192ce: rtl8192cu: rtl8192se: Remove sparse warningsLarry Finger1-1/+1
The rtlwifi family of drivers has the following sparse errors: CHECK drivers/net/wireless/rtlwifi/usb.c drivers/net/wireless/rtlwifi/usb.c:122:17: warning: cast to restricted __le32 CHECK drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:1157:13: warning: context imbalance in 'rtl92c_dm_refresh_rate_adaptive_mask' - different lock contexts for basic block CHECK drivers/net/wireless/rtlwifi/rtl8192ce/hw.c drivers/net/wireless/rtlwifi/rtl8192ce/hw.c:1909:30: warning: cast to restricted __le32 CHECK drivers/net/wireless/rtlwifi/rtl8192ce/sw.c drivers/net/wireless/rtlwifi/rtl8192ce/sw.c:345:1: warning: symbol 'rtl92ce_pci_ids' was not declared. Should it be static? CHECK drivers/net/wireless/rtlwifi/rtl8192cu/trx.c drivers/net/wireless/rtlwifi/rtl8192cu/trx.c:494:9: warning: cast from restricted __le16 CHECK drivers/net/wireless/rtlwifi/rtl8192se/fw.c drivers/net/wireless/rtlwifi/rtl8192se/fw.c:490:17: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:490:17: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:494:17: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:494:17: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:499:17: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:499:17: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:510:25: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:510:25: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:607:9: warning: cast to restricted __le16 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:607:9: warning: cast to restricted __le16 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:650:9: warning: cast to restricted __le16 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:650:9: warning: cast to restricted __le16 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:652:9: warning: cast to restricted __le16 drivers/net/wireless/rtlwifi/rtl8192se/fw.c:652:9: warning: cast to restricted __le16 CHECK drivers/net/wireless/rtlwifi/rtl8192se/trx.c drivers/net/wireless/rtlwifi/rtl8192se/trx.c:758:9: warning: cast from restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/trx.c:788:17: warning: cast from restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/trx.c:804:17: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/trx.c:804:17: warning: cast to restricted __le32 drivers/net/wireless/rtlwifi/rtl8192se/trx.c:807:17: warning: cast from restricted __le32 Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-31mac80211: move TX station pointer and restructure TXThomas Huehn1-5/+10
Remove the control.sta pointer from ieee80211_tx_info to free up sufficient space in the TX skb control buffer for the upcoming Transmit Power Control (TPC). Instead, the pointer is now on the stack in a new control struct that is passed as a function parameter to the drivers' tx method. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: Alina Friedrichsen <x-alina@gmx.net> Signed-off-by: Felix Fietkau <nbd@openwrt.org> [reworded commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-12rtlwifi: rtl8192cu: Change buffer allocation for synchronous readsLarry Finger1-3/+11
In commit a7959c1, the USB part of rtlwifi was switched to convert _usb_read_sync() to using a preallocated buffer rather than one that has been acquired using kmalloc. Although this routine is named as though it were synchronous, there seem to be simultaneous users, and the selection of the index to the data buffer is not multi-user safe. This situation is addressed by adding a new spinlock. The routine cannot sleep, thus a mutex is not allowed. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-14rtlwifi: fix for race condition when firmware is cachedLarry Finger1-5/+5
In commit b0302ab, the rtlwifi family of drivers was converted to use asynchronous firmware loading. Unfortumately, the implementation was racy, and the ieee80211 routines could be started before rtl_init_core() was called to setup the data. This patch fixes the bug noted in https://bugzilla.kernel.org/show_bug.cgi?id=43187. Reported-by: Joshua Roys <Joshua.Roys@gtri.gatech.edu> Tested-by: Neptune Ning <frostyplanet@gmail.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> [3.3] Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-11rtlwifi: Preallocate USB read buffers and eliminate kalloc in read routineLarry Finger1-18/+16
The current version of rtlwifi for USB operations uses kmalloc to acquire a 32-bit buffer for each read of the device. When _usb_read_sync() is called with the rcu_lock held, the result is a "sleeping function called from invalid context" BUG. This is reported for two cases in https://bugzilla.kernel.org/show_bug.cgi?id=42775. The first case has the lock originating from within rtlwifi and could be fixed by rearranging the locking; however, the second originates from within mac80211. The kmalloc() call is removed from _usb_read_sync() by creating a ring buffer pointer in the private area and allocating the buffer data in the probe routine. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> [This version good for 3.3+ - different patch for 3.2 - 2.6.39] Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-06rtlwifi: Remove extraneous value returnLarry Finger1-3/+2
In usb.c, routine _rtl_usb_init_sw() always returns 0, and rtl_usb_probe() never checks the returned value. Thus we can change _rtl_usb_init_sw() to a void routine. In addition, remove the underscore at the beginning of the name of the routine. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-06rtlwifi: Detect misread of end-point countLarry Finger1-3/+10
In the unlikely event of a misread of the USB end point count, the driver generates a divide fault. To prevent this, add a check of the value returned by _rtl_usb_init(). In addition, add some logging to indicate why the condition occurred. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-31rtlwifi: Convert to asynchronous firmware loadLarry Finger1-20/+14
This patch addresses a kernel bugzilla report and two recent mail threads. The kernel bugzilla report is https://bugzilla.kernel.org/show_bug.cgi?id=42632, which reports a udev timeout on boot. The first mail thread, which was on LKML (http://lkml.indiana.edu/hypermail/ linux/kernel/1112.3/00965.html) was for a WARNING that occurs after a suspend/resume cycle for rtl8192cu. The scond mail thread (http://marc.info/?l=linux-wireless&m=132655490826766&w=2) concerned changes in udev that break drivers that delay while firmware is loaded on modprobe. This patch converts all rtlwifi-based drivers to use the asynchronous firmware loading mechanism. Drivers rtl8192ce, rtl8192cu and rtl8192de share a common callback routine. Driver rtl8192se needs different handling of the firmware, thus it has its own code. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-31rtlwifi: Move pr_fmt macros to a single locationLarry Finger1-5/+2
Although the rtlwifi family of devices contains 11 copies of the pr_fmt macro, the macro is not defined for all routines that need it. By moving the macro to wifi.h, a single copy is available for all routines. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24rtlwifi: Update copyright datesLarry Finger1-1/+1
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24rtlwifi: rtl8192c_common: rtl8192de: Check for allocation failuresLarry Finger1-5/+7
In https://bugzilla.redhat.com/show_bug.cgi?id=771656, a kernel bug was triggered due to a failed skb allocation that was not checked. This event lead to an audit of all memory allocations in the complete rtlwifi family of drivers. This patch fixes the rest. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24rtlwifi: Convert RT_ASSERT macro to use ##__VA_ARGS__Joe Perches1-1/+1
Consolidate printks to avoid possible message interleaving and reduce the object size. Remove unnecessary RT_ASSERT parentheses. Align arguments. Coalesce formats. Remove unnecessary __func__ use as the macro uses it. $ size drivers/net/wireless/rtlwifi/built-in.o* text data bss dec hex filename 588901 55333 127216 771450 bc57a drivers/net/wireless/rtlwifi/built-in.o.new 590002 55333 127560 772895 bcb1f drivers/net/wireless/rtlwifi/built-in.o.old Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24rtlwifi: Convert RT_TRACE macro to use ##__VA_ARGS__Joe Perches1-19/+18
Consolidate printks to avoid possible message interleaving and reduce the object size. Remove unnecessary RT_TRACE parentheses. Miscellaneous typo and grammar fixes. Add missing newlines to formats. Remove duplicate KERN_DEBUG prefixes. Coalesce formats. Align arguments. $ size drivers/net/wireless/rtlwifi/built-in.o* text data bss dec hex filename 594841 55333 129680 779854 be64e drivers/net/wireless/rtlwifi/built-in.o.new 607022 55333 138720 801075 c3933 drivers/net/wireless/rtlwifi/built-in.o.old Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24rtlwifi: Neaten RT_ASSERT, RT_TRACE, RTPRINT, RT_PRINT_DATA macrosJoe Perches1-3/+3
Make the macros a bit more readable. Use do {...} while (0) without terminating semicolons. Add missing terminating semicolon to a few uses. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-22rtlwifi: squash warning in _usb_read_syncJohn W. Linville1-2/+3
drivers/net/wireless/rtlwifi/usb.c: In function ‘_usb_read_sync’: drivers/net/wireless/rtlwifi/usb.c:102:6: warning: ‘status’ may be used uninitialized in this function drivers/net/wireless/rtlwifi/usb.c:102:6: note: ‘status’ was declared here My compiler is dumb, but better to eliminate the warning than to have anyone waste time evaluating this again... Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
2011-11-22Merge branch 'master' of ↵John W. Linville1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux Conflicts: drivers/net/wireless/iwlegacy/iwl-debugfs.c drivers/net/wireless/iwlegacy/iwl-rx.c drivers/net/wireless/iwlegacy/iwl-scan.c drivers/net/wireless/iwlegacy/iwl-tx.c include/net/bluetooth/bluetooth.h
2011-11-22rtlwifi: rtl8192cu: Fix endianian issuesLarry Finger1-5/+7
Driver rtlwifi fails on a big-endian host. These changes have been tested on a Mac PowerBook G4, which has a PPC processor. Although this patch touches some of the code that will affect endian issues on PCI hardware through drivers rtl8192ce, rtl8192se, and rtl8192de, these have not been tested due to lack of suitable hardware. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-22rtlwifi: rtl8192cu: Change firmware upload to use block writesLarry Finger1-1/+25
Driver rtl8192cu writes the firmware with 32-bit asynchronous writes. This design is OK for USB 2.0 adapters, but the current implementation of xhcu-hcd has a limited ring size, which is exceeded. By converting to synchronous block writes, this error is avoided. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-22rtlwifi: rtl8192cu: Allow retries for USB I/OGeorge1-3/+15
The USB driver does not retry reads - allow 10 tries. Signed-off-by: George <george0505@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-01drivers/net: Add export.h to files using EXPORT_SYMBOL/THIS_MODULEPaul Gortmaker1-0/+1
These were getting the macros from an implicit module.h include via device.h, but we are planning to clean that up. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> drivers/net: Add export.h to wireless/brcm80211/brcmfmac/bcmsdh.c This relatively recently added file uses EXPORT_SYMBOL and hence needs export.h included so that it is compatible with the module.h split up work. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-30rtlwifi: Remove unused _usb_nbytes_read_write and _usb_writeN_syncLarry Finger1-30/+0
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-30rtlwifi: Remove unused routine _usb_readN_syncLarry Finger1-10/+0
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-26rtlwifi: rtl8192cu: Fix unitialized structLarry Finger1-0/+1
Driver rtl8192cu assigns a new struct rtl_tcb_desc object, but fails to clear it. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@kernel.org> [2.6.39+] Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-21rtlwifi: Convert printks to pr_<level>Joe Perches1-5/+7
Use the current logging styles. Add pr_fmt where appropriate. Remove now unnecessary prefixes from printks. Convert hard coded prefix to __func__. Add a missing "\n" to a format. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-27rtlwifi: Convert usb routines for addition of rtl8192se and rtl8192deChaoming_Li1-1/+13
Convert usb routines for addition of RTL8192SE and RTL8192DE code Signed-off-by: Chaoming_Li <chaoming_li@realsil.com.cn> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-27rtlwifi: Convert core routines for addition of rtl8192se and rtl8192deChaoming_Li1-1/+2
Convert core routines for addition of RTL8192SE and RTL8192DE code. Additional files are changed to allow compilation. Signed-off-by: Chaoming_Li <chaoming_li@realsil.com.cn> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-27rtlwifi: Change base routines for addition of rtl8192se and rtl8192deChaoming_Li1-2/+0
Change base routines for addition of RTL8192SE and RTL8192DE code. Additional files are modified to allow compilation. Signed-off-by: Chaoming_Li <chaoming_li@realsil.com.cn> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-04rtlwifi: Fix some warnings/bugsLarry Finger1-1/+1
Some compiler/architecture combinations generate some warnings that are not seen on my main system. Two of the "warnings" about unitialized variables are really bugs. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-02-21rtlwifi: rtl8192ce: Fix endian warningsLarry Finger1-8/+8
Drivers rtlwifi, and rtl8192ce generate a large number of sparse warnings. This patch fixes most of them. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-02-21rtlwifi: Modify some rtl8192ce routines for merging rtl8192cuLarry Finger1-6/+6
Modify some rtl8192ce routines for merging with rtl8192cu. In addition, remove some usage of Hungarian notation. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-02-12rtlwifi: Add usb driverGeorge1-0/+1035
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: George <george0505@realtek.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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