From: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx> This patch set mainly adds a BT co-existence mechanism, which helps WiFi device to work with BT device concurrently without interfering each other. For Realtek's WiFi/BT combo devices, the co-existence mechanism is on the WiFi side. The first two patches "rtw88: switch specified efuse bank" and "rtw88: check efuse for BT FT S1" aim to check if the device is able to run with WiFi + BT, because some of the earlier devices manufactured are in development for testing. These device hence did not program the efuse for BT. Without being programed, some of the hardware parameters are incorrect. The rest of the patches add BTcoex support. BTcoex needs to wake up events that is waiting for some C2H reported in IRQ context, so these C2H skbs do not required to be queued into workqueues to be processed. What we need to do is to simply wake it uin IRQ context. And actually C2H workqueue context should be protected by rtwdev->mutex lock to perform some hardware operations against mac80211 callbacks. The final patch contains the most of the BTcoex logic. It is not that complicated, just to gather information and make decision on WiFi driver side. What makes the code so much is that the mechanism needs to take care of a lot of WiFi/BT combinations. Such as if WiFi is at 2G or is having a lot of traffic or is connecting to AP. And BT has many profiles such as A2DP/HID/PAN or it is slave or not. Yan-Hsuan Chuang (5): rtw88: switch specified efuse bank rtw88: check efuse for BT FT S1 rtw88: allow c2h operation in irq context rtw88: enclose c2h cmd handle with mutex rtw88: add BT co-existence support drivers/net/wireless/realtek/rtw88/Makefile | 1 + drivers/net/wireless/realtek/rtw88/coex.c | 2462 +++++++++++++++++++++++++ drivers/net/wireless/realtek/rtw88/coex.h | 363 ++++ drivers/net/wireless/realtek/rtw88/efuse.c | 30 +- drivers/net/wireless/realtek/rtw88/fw.c | 135 +- drivers/net/wireless/realtek/rtw88/fw.h | 73 + drivers/net/wireless/realtek/rtw88/mac80211.c | 19 + drivers/net/wireless/realtek/rtw88/main.c | 45 +- drivers/net/wireless/realtek/rtw88/main.h | 233 +++ drivers/net/wireless/realtek/rtw88/pci.c | 6 +- drivers/net/wireless/realtek/rtw88/ps.c | 9 + drivers/net/wireless/realtek/rtw88/reg.h | 62 + drivers/net/wireless/realtek/rtw88/rtw8822b.c | 460 ++++- drivers/net/wireless/realtek/rtw88/rtw8822c.c | 355 +++- 14 files changed, 4216 insertions(+), 37 deletions(-) create mode 100644 drivers/net/wireless/realtek/rtw88/coex.c create mode 100644 drivers/net/wireless/realtek/rtw88/coex.h -- 2.7.4
