From e3037485c68ec1a299ff41160d8fedbd4abc29b9 Mon Sep 17 00:00:00 2001 From: Yan-Hsuan Chuang Date: Fri, 26 Apr 2019 15:17:37 +0300 Subject: rtw88: new Realtek 802.11ac driver This is a new mac80211 driver for Realtek 802.11ac wireless network chips. rtw88 now supports RTL8822BE/RTL8822CE now, with basic station mode functionalities. The firmware for both can be found at linux-firmware. https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git For RTL8822BE: rtw88/rtw8822b_fw.bin For RTL8822CE: rtw88/rtw8822c_fw.bin And for now, only PCI buses (RTL8xxxE) are supported. We will add support for USB and SDIO in the future. The bus interface abstraction can be seen in this driver such as hci.h. Most of the hardware setting are the same except for some TRX path or probing setup should be separated. Supported: * Basic STA/AP/ADHOC mode, and TDLS (STA is well tested) Missing feature: * WOW/PNO * USB & SDIO bus (such as RTL8xxxU/RTL8xxxS) * BT coexistence (8822B/8822C are combo ICs) * Multiple interfaces (for now single STA is better supported) * Dynamic hardware calibrations (to improve/stabilize performance) Potential problems: * static calibration spends too much time, and it is painful for driver to leave IDLE state. And slows down associate process. But reload function are under development, will be added soon! * TRX statictics misleading, as we are not reporting status correctly, or say, not reporting for "every" packet. The next patch set should have BT coexistence code since RTL8822B/C are combo ICs, and the driver for BT can be found after Linux Kernel v4.20. So it is better to add it first to make WiFi + BT work concurrently. Although now rtw88 is simple but we are developing more features for it. Even we want to add support for more chips such as RTL8821C/RTL8814B. Finally, rtw88 has many authors, listed alphabetically: Ping-Ke Shih Tzu-En Huang Yan-Hsuan Chuang Reviewed-by: Stanislaw Gruszka Reviewed-by: Brian Norris Tested-by: Brian Norris Signed-off-by: Yan-Hsuan Chuang Signed-off-by: Kalle Valo --- drivers/net/wireless/realtek/rtw88/rx.h | 41 +++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 drivers/net/wireless/realtek/rtw88/rx.h (limited to 'drivers/net/wireless/realtek/rtw88/rx.h') diff --git a/drivers/net/wireless/realtek/rtw88/rx.h b/drivers/net/wireless/realtek/rtw88/rx.h new file mode 100644 index 000000000000..383f3b2babc1 --- /dev/null +++ b/drivers/net/wireless/realtek/rtw88/rx.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* Copyright(c) 2018-2019 Realtek Corporation + */ + +#ifndef __RTW_RX_H_ +#define __RTW_RX_H_ + +#define GET_RX_DESC_PHYST(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x00), BIT(26)) +#define GET_RX_DESC_ICV_ERR(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x00), BIT(15)) +#define GET_RX_DESC_CRC32(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x00), BIT(14)) +#define GET_RX_DESC_SWDEC(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x00), BIT(27)) +#define GET_RX_DESC_C2H(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x02), BIT(28)) +#define GET_RX_DESC_PKT_LEN(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x00), GENMASK(13, 0)) +#define GET_RX_DESC_DRV_INFO_SIZE(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x00), GENMASK(19, 16)) +#define GET_RX_DESC_SHIFT(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x00), GENMASK(25, 24)) +#define GET_RX_DESC_RX_RATE(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x03), GENMASK(6, 0)) +#define GET_RX_DESC_MACID(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x01), GENMASK(6, 0)) +#define GET_RX_DESC_PPDU_CNT(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x02), GENMASK(30, 29)) +#define GET_RX_DESC_TSFL(rxdesc) \ + le32_get_bits(*((__le32 *)(rxdesc) + 0x05), GENMASK(31, 0)) + +void rtw_rx_stats(struct rtw_dev *rtwdev, struct ieee80211_vif *vif, + struct sk_buff *skb); +void rtw_rx_fill_rx_status(struct rtw_dev *rtwdev, + struct rtw_rx_pkt_stat *pkt_stat, + struct ieee80211_hdr *hdr, + struct ieee80211_rx_status *rx_status, + u8 *phy_status); + +#endif -- cgit v1.2.3-59-g8ed1b