diff options
author | Yan-Hsuan Chuang <yhchuang@realtek.com> | 2019-07-31 20:22:47 +0800 |
---|---|---|
committer | Kalle Valo <kvalo@codeaurora.org> | 2019-08-06 15:42:13 +0300 |
commit | 4136214f7c46839c15f0f177fe1d5052302c0205 (patch) | |
tree | de1f5e9b97f4292dea56bc59608f6f58cb478e69 /drivers/net/wireless/realtek/rtw88/fw.c | |
parent | 713a30de45a2ec8619228280e4832b5d6a34e759 (diff) |
rtw88: add BT co-existence support
Both RTL8822BE/RTL8822CE are WiFi + BT combo chips. Since
WiFi and BT use 2.4GHz to transmit, it is important to
make sure they run concurrently without interfering each
other. To achieve this, WiFi driver requires a mechanism
to collaborate with BT, whether they share the antenna(s)
or not.
The final decision made by the co-existence mechanism is
to choose a proper strategy, or called "tdma/table", and
inform either firmware or hardware of the strategy.
To choose a strategy, co-existence mechanism needs to
have enough information from WiFi and BT.
BT information is provided through firmware C2H.
The contents describe the current status of BT, such as
if BT is connected or is idle, or the profile that is
being used.
WiFi information can be provided by WiFi itself. The WiFi
driver will call various of "notify" functions each time
the state of WiFi changed, such as WiFi is going to switch
channel or is connected. Also WiFi driver can know if it
shares antenna with BT by reading efuse content. Antenna
configuration of the module will finally get a different
strategy.
Upon receiving any information from WiFi or BT, the WiFi
driver will run the co-existence mechanism immediately.
It will set the RF antenna configuration according to the
strategy through the TDMA H2C to firmware and a hardware
table. Based on the tdma/table, WiFi + BT should work with
each other, and having a better user experience.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/fw.c')
-rw-r--r-- | drivers/net/wireless/realtek/rtw88/fw.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c index 3b06f7150c41..b082e2cc95f5 100644 --- a/drivers/net/wireless/realtek/rtw88/fw.c +++ b/drivers/net/wireless/realtek/rtw88/fw.c @@ -3,6 +3,7 @@ */ #include "main.h" +#include "coex.h" #include "fw.h" #include "tx.h" #include "reg.h" @@ -39,6 +40,12 @@ void rtw_fw_c2h_cmd_handle(struct rtw_dev *rtwdev, struct sk_buff *skb) mutex_lock(&rtwdev->mutex); switch (c2h->id) { + case C2H_BT_INFO: + rtw_coex_bt_info_notify(rtwdev, c2h->payload, len); + break; + case C2H_WLAN_INFO: + rtw_coex_wl_fwdbginfo_notify(rtwdev, c2h->payload, len); + break; case C2H_HALMAC: rtw_fw_c2h_cmd_handle_ext(rtwdev, skb); break; @@ -63,6 +70,9 @@ void rtw_fw_c2h_cmd_rx_irqsafe(struct rtw_dev *rtwdev, u32 pkt_offset, c2h->id, c2h->seq, len); switch (c2h->id) { + case C2H_BT_MP_INFO: + rtw_coex_info_response(rtwdev, skb); + break; default: /* pass offset for further operation */ *((u32 *)skb->cb) = pkt_offset; @@ -206,6 +216,102 @@ void rtw_fw_do_iqk(struct rtw_dev *rtwdev, struct rtw_iqk_para *para) rtw_fw_send_h2c_packet(rtwdev, h2c_pkt); } +void rtw_fw_query_bt_info(struct rtw_dev *rtwdev) +{ + u8 h2c_pkt[H2C_PKT_SIZE] = {0}; + + SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_QUERY_BT_INFO); + + SET_QUERY_BT_INFO(h2c_pkt, true); + + rtw_fw_send_h2c_command(rtwdev, h2c_pkt); +} + +void rtw_fw_wl_ch_info(struct rtw_dev *rtwdev, u8 link, u8 ch, u8 bw) +{ + u8 h2c_pkt[H2C_PKT_SIZE] = {0}; + + SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_WL_CH_INFO); + + SET_WL_CH_INFO_LINK(h2c_pkt, link); + SET_WL_CH_INFO_CHNL(h2c_pkt, ch); + SET_WL_CH_INFO_BW(h2c_pkt, bw); + + rtw_fw_send_h2c_command(rtwdev, h2c_pkt); +} + +void rtw_fw_query_bt_mp_info(struct rtw_dev *rtwdev, + struct rtw_coex_info_req *req) +{ + u8 h2c_pkt[H2C_PKT_SIZE] = {0}; + + SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_QUERY_BT_MP_INFO); + + SET_BT_MP_INFO_SEQ(h2c_pkt, req->seq); + SET_BT_MP_INFO_OP_CODE(h2c_pkt, req->op_code); + SET_BT_MP_INFO_PARA1(h2c_pkt, req->para1); + SET_BT_MP_INFO_PARA2(h2c_pkt, req->para2); + SET_BT_MP_INFO_PARA3(h2c_pkt, req->para3); + + rtw_fw_send_h2c_command(rtwdev, h2c_pkt); +} + +void rtw_fw_force_bt_tx_power(struct rtw_dev *rtwdev, u8 bt_pwr_dec_lvl) +{ + u8 h2c_pkt[H2C_PKT_SIZE] = {0}; + u8 index = 0 - bt_pwr_dec_lvl; + + SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_FORCE_BT_TX_POWER); + + SET_BT_TX_POWER_INDEX(h2c_pkt, index); + + rtw_fw_send_h2c_command(rtwdev, h2c_pkt); +} + +void rtw_fw_bt_ignore_wlan_action(struct rtw_dev *rtwdev, bool enable) +{ + u8 h2c_pkt[H2C_PKT_SIZE] = {0}; + + SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_IGNORE_WLAN_ACTION); + + SET_IGNORE_WLAN_ACTION_EN(h2c_pkt, enable); + + rtw_fw_send_h2c_command(rtwdev, h2c_pkt); +} + +void rtw_fw_coex_tdma_type(struct rtw_dev *rtwdev, + u8 para1, u8 para2, u8 para3, u8 para4, u8 para5) +{ + u8 h2c_pkt[H2C_PKT_SIZE] = {0}; + + SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_COEX_TDMA_TYPE); + + SET_COEX_TDMA_TYPE_PARA1(h2c_pkt, para1); + SET_COEX_TDMA_TYPE_PARA2(h2c_pkt, para2); + SET_COEX_TDMA_TYPE_PARA3(h2c_pkt, para3); + SET_COEX_TDMA_TYPE_PARA4(h2c_pkt, para4); + SET_COEX_TDMA_TYPE_PARA5(h2c_pkt, para5); + + rtw_fw_send_h2c_command(rtwdev, h2c_pkt); +} + +void rtw_fw_bt_wifi_control(struct rtw_dev *rtwdev, u8 op_code, u8 *data) +{ + u8 h2c_pkt[H2C_PKT_SIZE] = {0}; + + SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_BT_WIFI_CONTROL); + + SET_BT_WIFI_CONTROL_OP_CODE(h2c_pkt, op_code); + + SET_BT_WIFI_CONTROL_DATA1(h2c_pkt, *data); + SET_BT_WIFI_CONTROL_DATA2(h2c_pkt, *(data + 1)); + SET_BT_WIFI_CONTROL_DATA3(h2c_pkt, *(data + 2)); + SET_BT_WIFI_CONTROL_DATA4(h2c_pkt, *(data + 3)); + SET_BT_WIFI_CONTROL_DATA5(h2c_pkt, *(data + 4)); + + rtw_fw_send_h2c_command(rtwdev, h2c_pkt); +} + void rtw_fw_send_rssi_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si) { u8 h2c_pkt[H2C_PKT_SIZE] = {0}; |