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path: root/drivers/net/wireless/rt2x00/rt2800lib.c
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2015-11-18rt2x00: move under ralink vendor directoryKalle Valo1-8021/+0
Part of reorganising wireless drivers directory and Kconfig. Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-22mac80211: allow to transmit A-MSDU within A-MPDUEmmanuel Grumbach1-1/+1
Advertise the capability to send A-MSDU within A-MPDU in the AddBA request sent by mac80211. Let the driver know about the peer's capabilities. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-23Merge tag 'wireless-drivers-next-for-davem-2015-06-18' of ↵David S. Miller1-40/+17
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== Major changes: mwifiex: * enhancements for AP mode: support verbose information in station dump command and also information about AP link. * enable power save by default brcmfmac: * fix module reload issue for PCIe * improving msgbuf protocol for PCIe devices * rework .get_station() cfg80211 callback operation * determine interface combinations upon device feature support ath9k: * ath9k_htc: add support of channel switch wil6210: * add modparam for bcast ring size * support hidden SSID * add per-MCS Rx stats ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-15rt2800: fix assigning same WCID for different stationsStanislaw Gruszka1-40/+17
On some hardware reading WCID entries table results getting 0xff numbers, no matter of value written there before. This cause assigning the same WCID for different stations and makes not possible to connect to more than one station. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-06-10mac80211: convert HW flags to unsigned long bitmapJohannes Berg1-9/+7
As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-05-06mac80211: extend get_tkip_seq to all keysJohannes Berg1-6/+10
Extend the function to read the TKIP IV32/IV16 to read the IV/PN for all ciphers in order to allow drivers with full hardware crypto to properly support this. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-04-24mac80211: remove support for IFF_PROMISCJohannes Berg1-2/+1
This support is essentially useless as typically networks are encrypted, frames will be filtered by hardware, and rate scaling will be done with the intended recipient in mind. For real monitoring of the network, the monitor mode support should be used instead. Removing it removes a lot of corner cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-08cfg80211: remove "channel" from survey namesJohannes Berg1-6/+6
All of the survey data is (currently) per channel anyway, so having the word "channel" in the name does nothing. In the next patch I'll introduce global data to the survey, where the word "channel" is actually confusing. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-12-01rt2800: calculate tx power temperature compensation on selected chipsStanislaw Gruszka1-19/+26
Currently implemented temperature compensation is only valid on some of supported chips. Other chips do not need temperature compensation or need different way to do this (not yet implemented in the rt2800 driver). Trying to do run rt2800_get_gain_calibration_delta() when this is not appropriate on particular chip gives bogus result of TX power and can make connection unstable. This is follow up to commit 8c8d2017ba25c510ddf093419048460db1109bc4 "rt2800: fix RT5390 & RT3290 TX power settings regression". On that commit we avoid setting BBP_R1 register, but the real problem is wrong temperature compensation calculation. Reported-and-tested-by: Ronald Wahl <ronald.wahl@raritan.com> Debugged-by: Ronald Wahl <ronald.wahl@raritan.com> Cc: Mike Romberg <mike-romberg@comcast.net> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28rt2x00: support Ralink 5362.Canek Peláez Valdés1-0/+6
Signed-off-by: Canek Peláez Valdés <canek@ciencias.unam.mx> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19rt2x00: do not initialize BCN_OFFSET registersStanislaw Gruszka1-22/+0
We setup BCN_OFFSET{0,1} registers dynamically, don't have to initialize them. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19rt2x00: change default MAC_BSSID_DW1_BSS_BCN_NUMStanislaw Gruszka1-1/+1
We setup MAC_BSSID_DW1_BSS_BCN_NUM dynamically when numbers of active beacons increase. Change default to 0 to tell hardware that we want to send only one beacon as default. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19rt2x00: change beaconing setup on RT2800Stanislaw Gruszka1-0/+45
As reported by Matthias, on 5572 chip, even if we clear up TXWI of corresponding beacon, hardware still try to send it or do other action that increase power consumption peak up to 1A. To avoid the issue, setup beaconing dynamically by configuring offsets of currently active beacons and MAC_BSSID_DW1_BSS_BCN_NUM variable, which limit number of beacons that hardware will try to send. Reported-by: Matthias Fend <Matthias.Fend@wolfvision.net> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-22rt2x00: restore original beaconing stateStanislaw Gruszka1-8/+7
After changing local per interface beacon setting restore original global beaconing state. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-13Revert "rt2x00: rt2800lib: Update BBP register initialization for RT53xx"Stanislaw Gruszka1-3/+3
This reverts commit eac40d9631a7db43570df859fa8a9922e9623607. It cause random connection drops on RT5390 PCI adapters. On Mediatek there is different driver version available for RT53xx chip based on bus type (2.5.0.3 for PCI and 2.6.1.3 for USB). Hence possibly we should set registers differently based on bus type. But is also possible that new driver (i.e. 2.6.1.3) was not verified on RT53xx USB. Until we figure out how to initialize registers properly for RT53xx just revert commit eac40d9631a7db43570df859fa8a9922e9623607 since it cause regression. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-05rt2800: disable PS by default on USBStanislaw Gruszka1-3/+2
We have disabled it currently on other buses. PS can cause some issues, not necessarily with our driver but on AP, that are not easy to debug. Since behaviour differs on rt2800usb and rt2800pci, user usually blame for malfunction rt2800usb driver, whereas issue is on AP side. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-11rt2x00: Fix FSF address in file headersJeff Kirsher1-3/+1
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: linux-wireless@vger.kernel.org CC: Ivo van Doorn <IvDoorn@gmail.com> CC: Gertjan van Wingerde <gwingerde@gmail.com> CC: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-05rt2x00: rt2800lib: no need to write RF register 3 twice for RT5592Kevin Lo1-1/+0
In rt2800_init_rfcsr_5592(), there's no need to write RF register 3 twice. Signed-off-by: Kevin Lo <kevlo@kevlo.org> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-05rt2x00: rt2800lib: update RF registers for RT5390Kevin Lo1-11/+19
Mirror the latest MediaTek/Ralink driver with respect to RT5390 RF register programming. The PCI and USB devices use different init values. Signed-off-by: Kevin Lo <kevlo@kevlo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-05rt2x00: rt2800lib: Update BBP register initialization for RT53xxKevin Lo1-3/+3
Update bbp register initialization for RT53xx chips to match with the latest MediaTek/Ralink driver. Based on: NICInitRT5390BbpRegisters() From: DPO_RT5572_LinuxSTA_2.6.1.3_20121022/chips/rt5390.c Signed-off-by: Kevin Lo <kevlo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-11-11wireless: rt2800lib: Fix typo on checkingFelipe Pena1-1/+1
On rt2800_config_channel_rf53xx function the member default_power1 is checked for bound limit, but default_power2 is used instead. Signed-off-by: Felipe Pena <felipensp@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18rt2x00: rt2800lib: autodetect 5GHz band supportGabor Juhos1-4/+4
If the RF chip supports more than 14 channels that indirectly means that it supports the 5GHz band. Use this fact to enable 5GHz band support instead of setting SUPPORT_BAND_5GHZ separately for each RF chip. Also move the setup code of the 2GHz band to the same place. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18rt2x00: rt2800lib: use switch statement for RF specific setupGabor Juhos1-21/+30
It is much more readable than multiple if-else-if statements. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18rt2x00: rt2800lib: use {tx,rx}_chain_num to avoid superfluous EEPROM accessGabor Juhos1-10/+6
The {rx,tx}_chain_num fields of rt2x00dev->default_ant contains the number of RX and TX chains already when the rt2800_probe_hw_mode() function runs. Use those values instead of parsing the EEPROM configuration values again. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14rt2x00: rt2800lib: remove duplicate rf_vals for RF3053Kevin Lo1-72/+3
lready have rf_vals_3x with same values. Hence rf_vals_3053 is removed in this patch. Signed-off-by: Kevin Lo <kevlo@kevlo.org> Acked-by: Paul Menzel <paulepanter@users.sourceforge.net> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14rt2x00: rt2800lib: fix RF registers for RT5390/RT5392Kevin Lo1-3/+2
Update rf registers to use the same values that the MediaTek/Ralink reference driver DPO_RT5572_LinuxSTA_2.6.1.3_20121022 uses. References: RF5390RegTable in chips/rt5390.c RF5392RegTable in chips/rt5390.c Tested on TP-Link TL-WN727N and D-Link DWA-140 Rev.b3 usb wifi dongles. Signed-off-by: Kevin Lo <kevlo@kevlo.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14rt2x00: rt2800lib: use rt2x00_has_cap_* helpersGabor Juhos1-13/+12
Use the appropriate helper functions instead of directly accessing the rt2x00dev->cap_flags field to check device capability flags. This improves readability of the code a bit. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-10rt2x00: rt2800lib: fix VGC adjustment for RT3572 and RT3593Gabor Juhos1-5/+20
The Ralink DPO_RT5572_LinuxSTA_2.6.1.3_20121022 reference driver uses different RSSI threshold and VGC adjustment values for the RT3572 and RT3593 chipsets. Update the rt2800_link_tuner function to use the same values. Also change the comment in the function to make it more generic. References: RT35xx_ChipAGCAdjust function in chips/rt35xx.c RSSI_FOR_MID_LOW_SENSIBILITY constant in include/chip/rtmp_phy.h RT3593_R66_MID_LOW_SENS_GET macro in include/chip/rt3593.h RT3593_R66_NON_MID_LOW_SEMS_GET macro in include/chips/rt3593.h Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-10rt2x00: rt2800lib: fix VGC adjustment for RT5592Gabor Juhos1-4/+7
In commit 3d81535ea5940446510a8a5cee1c6ad23c90c753 (rt2800: 5592: add chip specific vgc calculations) the rt2800_link_tuner function has been modified to adjust VGC level for the RT5592 chipset. On the RT5592 chipset, the VGC level must be adjusted only if rssi is greater than -65. However the current code adjusts the VGC value by 0x10 regardless of the actual chipset if the rssi value is between -80 and -65. Fix the broken behaviour by reordering the if-else statements. Cc: stable@vger.kernel.org Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-10rt2x00: rt2800lib: no need to toggle RF R30 bit 7 twiceKevin Lo1-7/+0
In rt2800_config_channel_rf3xxx(), there's no need to toggle RF R30 bit 7 twice. Signed-off-by: Kevin Lo <kevlo@kevlo.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-10rt2x00: rt2800lib: fix default VGC values for RT3572 for the 5GHz bandGabor Juhos1-4/+11
The rt2x00 driver uses 0x22 as a default VGC value in VGC adjustment for the RT3572 chipset. In the Ralink DPO_RT5572_LinuxSTA_2.6.1.3_20121022 driver, this value is only used for initialization. During VGC adjustment, the reference driver uses different values. Update the 'rt2800_get_default_vgc' function to synchronize the values with the reference driver. Also add the missing AGC initialization code into the 'rt2800_config_channel' function. References: RT35xx_SetAGCInitValue in chip/rt35xx.c RT35xx_ChipAGCAdjust in chip/rt35xx.c Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-10rt2x00: rt2800lib: fix VGC programming for RT3572 and RT3593Gabor Juhos1-2/+8
According to the DPO_RT5572_LinuxSTA_2.6.1.3_20121022 reference driver, programming of the 'BBP 66' register on the RT3572 and RT3593 chipsets must be done via the 'rt2800_bbp_write_with_rx_chain' function. This ensures that value is correclty set for all RX chains. References: RT35xx_ChipAGCAdjust and RT35xx_SetAGCInitValue functions in chips/rt35xx.c Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-10rt2x00: rt2800lib: fix default VGC values for RT3593Gabor Juhos1-0/+3
Update the rt2800_get_default_vgc function to use the same VGC values that the DPO_RT5572_LinuxSTA_2.6.1.3_20121022 reference driver uses. References: RT35xx_ChipAGCAdjust in chips/rt35xx.c RT3593_R66_MID_LOW_SENS_GET macro in include/chip/rt3593.h RT3593_R66_NON_MID_LOW_SEMS_GET macro in include/chips/rt3593.h Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-10rt2x00: rt2800lib: remove TXPOWER_DELTA entry from extended EEPROM mapGabor Juhos1-1/+0
The TXPOWER_DELTA field of the regular EEPROM stores the TX power compensation value for HT40. The extended EEPROM has no such field, it stores separate TX power values for HT20 and for HT40. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Paul Menzel <paulepanter@users.sourceforge.net> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-10rt2x00: rt2800lib: remove TXMIXER_GAIN entries from the extended EEPROM mapGabor Juhos1-2/+0
The comments are indicating that the TXMIXER_GAIN_BG and TXMIXED_GAIN_A entries are overlapping with the RSSI_BG2 and RSSI_A2 entries in the extended EEPROM map. This is not correct, because the upper byte of the RSSI_BG2 and RSSI_A2 entries are reserved. There are no TX mixer gain values are stored at all in the extended EEPROM. Remove the initialization of these entries from the extended EEPROM map to reflect this. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Paul Menzel <paulepanter@users.sourceforge.net> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-04rt2800: add support for radio chip RF3070Stanislaw Gruszka1-1/+7
Add support for new RF chip ID: 3070. It seems to be the same as 5370, maybe vendor just put wrong value on the eeprom, but add this id anyway since devices with it showed on the marked. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26rt2x00: Fix rf register for RT3070Kevin Lo1-1/+1
Fix RT3070 chip RF initial value to be similar to the latest Ralink vendor driver. Tested on Asus N13 usb wifi dongle. Signed-off-by: Kevin Lo <kevlo@kevlo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26rt2x00: rt2800lib: fix band selection and LNA PE control for RT3593 PCIe cardsGabor Juhos1-9/+17
The band selection and PE control code for the RT3593 chipsets only handles USB based devices currently. Due to this limitation RT3593 based PCIe cards are not working correctly. On PCIe cards band selection is controlled via GPIO #8 which is identical to the USB devices. The LNA PE control is slightly different, all LNA PEs are controlled by GPIO #4. Update the code to configure the GPIO_CTRL register correctly on PCIe devices. Cc: Steven Liu <steven.liu@mediatek.com> Cc: JasonYS Cheng <jasonys.cheng@mediatek.com> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26rt2800: comment enable radio initialization sequenceStanislaw Gruszka1-2/+11
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09rt2800: change initialization sequence to fix system freezeStanislaw Gruszka1-5/+6
My commit commit c630ccf1a127578421a928489d51e99c05037054 Author: Stanislaw Gruszka <stf_xl@wp.pl> Date: Sat Mar 16 19:19:46 2013 +0100 rt2800: rearrange bbp/rfcsr initialization make Maxim machine freeze when try to start wireless device. Initialization order and sending MCU_BOOT_SIGNAL request, changed in above commit, is important. Doing things incorrectly make PCIe bus problems, which can froze the machine. This patch change initialization sequence like vendor driver do: function NICInitializeAsic() from 2011_1007_RT5390_RT5392_Linux_STA_V2.5.0.3_DPO (PCI devices) and DPO_RT5572_LinuxSTA_2.6.1.3_20121022 (according Mediatek, latest driver for RT8070/RT3070/RT3370/RT3572/RT5370/RT5372/RT5572 USB devices). It fixes freezes on Maxim system. Resolve: https://bugzilla.redhat.com/show_bug.cgi?id=1000679 Reported-and-tested-by: Maxim Polyakov <polyakov@dexmalabs.com> Bisected-by: Igor Gnatenko <i.gnatenko.brain@gmail.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28Merge branch 'master' of ↵John W. Linville1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/iwlwifi/pcie/trans.c net/mac80211/ibss.c
2013-08-26rt2800: fix wrong TX power compensationStanislaw Gruszka1-0/+7
We should not do temperature compensation on devices without EXTERNAL_TX_ALC bit set (called DynamicTxAgcControl on vendor driver). Such devices can have totally bogus TSSI parameters on the EEPROM, but still threaded by us as valid and result doing wrong TX power calculations. This fix inability to connect to AP on slightly longer distance on some Ralink chips/devices. Reported-and-tested-by: Fabien ADAM <id2ndr@crocobox.org> Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26rt2x00: rt2800lib: don't hardcode beacon offsetsGabor Juhos1-8/+22
The values written into the BCN_OFFSET[01] registers are hardcoded in the rt2800_init_register function. Add a macro and a helper function to derive these values directly from the base address of a given beacon, and use the new function instead of the hardcoded numbers. The patch contains no functional changes. The programmed register values are the same before and after the patch. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26rt2x00: rt2800lib: add rt2800_hw_beacon_base helperGabor Juhos1-2/+9
The HW_BEACON_BASE() macro returns the base address of a given beacon, however the returned values are not usable on all chipsets. On devices which have selectable shared memory parts, some beacon may be located in the high part of the shared memory. Instead of extending the already complicated macro, add a new helper function and use that to get the base address of a given beacon. The actual patch contains no functional changes, the helper function will be extended in a further patch to handle different chipsets' requirements. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22rt2x00: rt2800lib: adjust frequency offset for RF3053Gabor Juhos1-1/+1
Along with other chipsets, the Ralink driver uses the frequency adjustment code for RF3053 as well. Remove the bogus place-holder comment from the RF3053 specific channel configuration function and call the frequency adjustment function instead Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629 driver. Reference: RT3593_ChipSwitchChannel function in chips/rt3593.c Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22rt2x00: rt2800lib: move rt2800_adjust_freq_offset functionGabor Juhos1-36/+37
Move the rt2800_adjust_freq_offset function before the channel configuration functions to make it usable from those without a forward declaration. The patch contains no functional changes. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22rt2x00: rt2800lib: use step-by-step frequency offset adjustment on MMIO devicesGabor Juhos1-3/+16
According to the DPO_RT5572_LinuxSTA_2.6.0.1_20120629 driver, the RFCSR17 register can't be programmed in one step on devices which are using the frequency offset adjustment code. Update the code to use step-by-step adjustment. Reference: RT30xxWriteRFRegister function in common/rt_rf.c Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22rt2x00: rt2800lib: use a MCU command for frequency adjustment on USB devicesGabor Juhos1-1/+5
According to the Ralink driver, there is an MCU command which can be used to send the frequency offset value directly to the USB device without going through the RFCSR writing sequence. Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629 driver. Reference: RTMPAdjustFrequencyOffset function in common/rt_rf.c Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22rt2x00: rt2800lib: optimize frequency offset adjustmentGabor Juhos1-1/+6
Don't write the new value into the register if it is the same as the old value to avoid unncessary USB bus traffic with USB devices. The change also saves a few cycle on MMIO based devices. Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629 driver. Reference: RTMPAdjustFrequencyOffset function in common/rt_rf.c Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22rt2x00: rt2800lib: fix frequency offset boundary calculationGabor Juhos1-4/+5
The current code in the 'rt2800_adjust_freq_offset' function limits the device specific frequency offset value to FREQ_BOUND but ignores the fact that the uppermost bit is not part of the frequency offset value. As the result, the driver always uses the FREQ_BOUND value if the uppermost bit is set. Update the code to use the correct source value for calculating the boundary. Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629 driver. Reference: RTMPAdjustFrequencyOffset function in common/rt_rf.c Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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