- 03 May, 2022 9 commits
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Ping-Ke Shih authored
DPK is short for digital pre-distortion calibration. It can adjusts digital waveform according to PA linear characteristics dynamically to enhance TX EVM. Do this calibration when we are going to run on AP channel. To prevent power offset out of boundary, it monitors thermal and set proper boundary to register. 8852c needs two backup buffers, so we enlarge the array. But, 8852a still needs only one, so it only uses first element (index zero). Signed-off-by:
Ping-Ke Shih <pkshih@realtek.com> Signed-off-by:
Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220502235408.15052-9-pkshih@realtek.com
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Ping-Ke Shih authored
IQ signal calibration is a very important calibration to yield good RF performance. We do this calibration only if we are going to run on AP channel. During scanning phase, without this calibration RF performance is still acceptable because it transmits with low data rate at this phase. Signed-off-by:
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Ping-Ke Shih authored
RX DCK is receiver DC calibration. Do this calibration when bringing up interface and going to run on AP channel. Signed-off-by:
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Ping-Ke Shih authored
RCK is synchronize RC calibration. It needs to be triggered only once when interface is going to up. Signed-off-by:
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Ping-Ke Shih authored
TSSI is transmitter signal strength indication, which is a close-loop hardware circuit to feedback actual transmitting power as a reference for next transmission. When we setup channel to connect an AP, it does full calibration. When switching bands or channels, it needs to reset hardware status to prevent use wrong feedback of previous transmission. To do TX power compensation reflecting current temperature, it loads tables of compensation values into registers according to channel and band group. Signed-off-by:
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Ping-Ke Shih authored
LCK is short fro LC Tank calibration. Do this calibration once driver loads RF parameters table. Since the characteristic can be changed by temperature, we do this calibration again if difference of thermal value is over a threshold. Signed-off-by:
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Ping-Ke Shih authored
DACK (digital-to-analog converters calibration) is used to calibrate DAC to output analog signals as expected. Signed-off-by:
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Ping-Ke Shih authored
These tables are used by RFK (RF calibration) to set parameters. These parameters can trigger certain calibration, or configure/reset settings before and after RF calibrations. Signed-off-by:
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Srinivasan Raju authored
Fix the following sparse warnings: drivers/net/wireless/purelifi/plfxlc/chip.c:36:31: sparse: expected unsigned short [usertype] beacon_interval drivers/net/wireless/purelifi/plfxlc/chip.c:36:31: sparse: got restricted __le16 [usertype] Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Srinivasan Raju <srini.raju@purelifi.com> Signed-off-by:
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- 02 May, 2022 1 commit
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Jakub Kicinski authored
Defining local versions of NAPI_POLL_WEIGHT with the same values in the drivers just makes refactoring harder. Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
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- 01 May, 2022 4 commits
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Chih-Kang Chang authored
After scan aborts we still receive some hw scan c2h packets, and processing these c2h commands will change current channel. If device already connect to other AP, driver will set wrong op channel due to current channel changed. The disconnection happens when hw scan back to wrong op channel that device can't receive beacon from AP. To fix this issue, we ignore the late c2h if we are not scanning, and set current channel back to op channel after scan to align the FW behavior. Signed-off-by:
Chih-Kang Chang <gary.chang@realtek.com> Signed-off-by:
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Chih-Kang Chang authored
Correct the judgment to let beacon filter disable after disconnection. Signed-off-by:
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Chih-Kang Chang authored
Each chip have best ampdu density value, the correct setting can improve throughput performance. Signed-off-by:
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Jiapeng Chong authored
Eliminate the follow versioncheck warning: ./drivers/net/wireless/purelifi/plfxlc/usb.c: 20 linux/version.h not needed. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by:
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- 29 Apr, 2022 1 commit
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Yang Li authored
Eliminate the following coccicheck warning: ./drivers/net/wireless/realtek/rtw89/rtw8852c.c:2556:2-3: Unneeded semicolon Reported-by:
Yang Li <yang.lee@linux.alibaba.com> Acked-by:
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- 27 Apr, 2022 6 commits
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Guo Zhengkui authored
Fix the following coccicheck warning: drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c:1604:2-4: WARNING: possible condition with no effect (if == else). Signed-off-by:
Guo Zhengkui <guozhengkui@vivo.com> Acked-by:
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Hamid Zamani authored
This uses ISO3166 country code and 0 rev on brcmfmac43602 chips. Without this patch 80 MHz width is not selected on 5 GHz channels. Commit a21bf90e ("brcmfmac: use ISO3166 country code and 0 rev as fallback on some devices") provides a way to specify chips for using the fallback case. Before commit 151a7c12 ("Revert "brcmfmac: use ISO3166 country code and 0 rev as fallback"") brcmfmac43602 devices works correctly and for this specific case 80 MHz width is selected. Signed-off-by:
Hamid Zamani <hzamani.cs91@gmail.com> Signed-off-by:
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Alexander Wetzel authored
Using not existing queues can panic the kernel with rtl8180/rtl8185 cards. Ignore the skb priority for those cards, they only have one tx queue. Pierre Asselin (pa@panix.com) reported the kernel crash in the Gentoo forum: https://forums.gentoo.org/viewtopic-t-1147832-postdays-0-postorder-asc-start-25.html He also confirmed that this patch fixes the issue. In summary this happened: After updating wpa_supplicant from 2.9 to 2.10 the kernel crashed with a "divide error: 0000" when connecting to an AP. Control port tx now tries to use IEEE80211_AC_VO for the priority, which wpa_supplicants starts to use in 2.10. Since only the rtl8187se part of the driver supports QoS, the priority of the skb is set to IEEE80211_AC_BE (2) by mac80211 for rtl8180/rtl8185 cards. rtl8180 is then unconditionally reading out the priority and finally crashes on drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c line 544 without this patch: idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries "ring->entries" is zero for rtl8180/rtl8185 cards, tx_ring[2] never got initialized. Cc: stable@vger.kernel.org Reported-by: pa@panix.com Tested-by: pa@panix.com Signed-off-by:
Alexander Wetzel <alexander@wetzel-home.de> Signed-off-by:
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Kevin Lo authored
Write the BIT_USB_SUS_DIS bit rather than BIT_BT_DIG_CLK_EN to the REG_HCI_OPT_CTRL register for fixing failure to PCIe power on. Signed-off-by:
Kevin Lo <kevlo@kevlo.org> Acked-by:
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Andrejs Cainikovs authored
With a recent change now it is possible to detect the strapping option on SD8997, which allows to pick up a correct firmware for either SDIO-SDIO or SDIO-UART. This commit enables SDIO-UART firmware on SD8997. Signed-off-by:
Andrejs Cainikovs <andrejs.cainikovs@toradex.com> Signed-off-by:
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Andrejs Cainikovs authored
Some WiFi/Bluetooth modules might have different host connection options, allowing to either use SDIO for both WiFi and Bluetooth, or SDIO for WiFi and UART for Bluetooth. It is possible to detect whether a module has SDIO-SDIO or SDIO-UART connection by reading its host strap register. This change introduces a way to automatically select appropriate firmware depending of the connection method, and removes a need of symlinking or overwriting the original firmware file with a required one. Host strap register used in this commit comes from the NXP driver [1] hosted at Code Aurora. [1] https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_sdio_mmc.c?h=rel_imx_5.4.70_2.3.2&id=688b67b2c7220b01521ffe560da7eee33042c7bd#n1274Signed-off-by:
Alvin Šipraga <alsi@bang-olufsen.dk> Signed-off-by:
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- 25 Apr, 2022 1 commit
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Srinivasan Raju authored
This is a driver for pureLiFi X, XL, XC devices which use light to transmit data, so they are not compatible with normal Wi-Fi devices. The driver uses separate NL80211_BAND_LC band to distinguish from Wi-Fi. The driver is based on 802.11 softMAC Architecture and uses native 802.11 for configuration and management. Station and Ad-Hoc modes are supported. The driver is compiled and tested in ARM, x86 architectures and compiled in powerpc architecture. This driver implementation has been based on the zd1211rw driver. Signed-off-by:
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- 24 Apr, 2022 14 commits
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Ping-Ke Shih authored
Add some chip_ops to support BT coexistence to work properly. Signed-off-by:
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Ping-Ke Shih authored
Hardware reports PPDU status containing encoded channel index to driver, so we decode it and then fill freq and band. Signed-off-by:
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Ping-Ke Shih authored
Read thermal value, and then we can use EWMA thermal value to do RF calibrations if the value is changed over a threshold. Signed-off-by:
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Ping-Ke Shih authored
Three chip_ops are implemented in this patch. The ::set_txpwr_ctrl and ::init_txpwr_unit are called when we up interface and then configure TX power registers to initial values. The ::set_txpwr_ctrl is to configure 'txpwr_ref' to make basic output TX power of OFDM and CCK rate to be the same. The ::init_txpwr_unit is to initialize TSSI (a method to do TX power compensation depends on thermal value) control and bandedge. The ::set_txpwr is called once switching channel. First, it sets TX power for each rate section (e.g. CCK, OFDM), and then sets TX power offset between 1SS and 2SS rate. Finally, it sets TX power limit to prevent power over regulation. Signed-off-by:
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Ping-Ke Shih authored
8852c propose new API to configure BB TX/RX path. Without fix patch, it can't transmit any packet. Signed-off-by:
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Ping-Ke Shih authored
IQK results in hardware has two copies that are used by firmware to switch these two to support MCC. This H2C tell firmware the corresponding channel and band of each IQK results, and currrent one. Signed-off-by:
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Ping-Ke Shih authored
When disconnecting, it warns somethings after power is off, and we can't do HCI IO. So, add this patch to avoid below messages: rtw89_8852ce 0000:03:00.0: timed out to flush pci txch: 11 rtw89_8852ce 0000:03:00.0: failed to pre-release fwcmd Signed-off-by:
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Ping-Ke Shih authored
RPP is to report certain skb(s) can be freed, and TX BD indicates which TX descriptors can be freed. Normally, TX BD is happened before RPP. In low power mode, RPP can happen ahead, so change flow to handle this case. Signed-off-by:
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Ping-Ke Shih authored
In low power mode, we need to pause PCI to configure IMR and PCI ring index registers accordingly, because the regular registers are power-off in this mode. In the transition moment named paused in code, we can't touch ring index, so don't kick off DMA immediately. Instead, queue them into pending queue, and kick off after the moment. There are three low power modes, which are RF off/clock gate/power gate, but PCI enter low power mode in later two modes only. So, add a mask to achieve this. Signed-off-by:
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Ping-Ke Shih authored
Normally, we re-enable interrupt by napi_poll, but for this special situation, we must turn it on immediately because napi_poll isn't scheduled. Signed-off-by:
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Ping-Ke Shih authored
In lower power mode, there are very low amount of RX, and it must process in a separated function instead of schedule_napi(), because the existing napi_poll does many things to optimize performance, but not all registers can access in low power mode. The simple way is to use threadfn to process the simple thing. Signed-off-by:
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Ping-Ke Shih authored
To reclaim TX BD, we need to read hardware reading index to determine if any DMA is complete. Since this IO spends time, do this thing only if we really need it when TX BD has no free buffer corresponding to target skb. The experimental result shows that reading counter decreases from 26,000 to 130 per second. Signed-off-by:
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Ping-Ke Shih authored
RPWM/CPWM are registers that can set and check low power mode. Since chips use different address, add a field to access them in common flow. Signed-off-by:
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Ping-Ke Shih authored
8852CE uses different but similar IMR/ISR registers, and its masks are also different in various states, so add config_intr_mask ops to configure masks according to under_recovery or low_power states. Signed-off-by:
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- 23 Apr, 2022 4 commits
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Po-Hao Huang authored
Disable this capability to avoid timeout errors on certain platforms. Without it, pci bus might stuck and leads to disconnection. Signed-off-by:
Po-Hao Huang <phhuang@realtek.com> Signed-off-by:
Chris Chiu <chris.chiu@canonical.com> Signed-off-by:
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Po-Hao Huang authored
This avoids below warning and makes compiler happy. error: uninitialized symbol 'tim_offset' Signed-off-by:
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Minghao Chi authored
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by:
Zeal Robot <zealci@zte.com.cn> Signed-off-by:
Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by:
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Minghao Chi authored
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by:
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