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authorPing-Ke Shih <pkshih@realtek.com>2021-10-11 13:47:27 +0200
committerKalle Valo <kvalo@codeaurora.org>2021-10-13 08:01:12 +0200
commite3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd (patch)
treec4f4f5fda894f4c7e1cdc859ec543410035ea229 /drivers/net/wireless/realtek/rtw89/util.h
parentb43: fix a lower bounds test (diff)
downloadlinux-e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd.tar.xz
linux-e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd.zip
rtw89: add Realtek 802.11ax driver
This driver named rtw89, which is the next generation of rtw88, supports Realtek 8852AE 802.11ax 2x2 chip whose new features are OFDMA, DBCC, Spatial reuse, TWT and BSS coloring; now some of them aren't implemented though. The chip architecture is entirely different from the chips supported by rtw88 like RTL8822CE 802.11ac chip. First of all, register address ranges are totally redefined, so it's impossible to reuse register definition. To communicate with firmware, new H2C/C2H format is proposed. In order to have better utilization, TX DMA flow is changed to two stages DMA. To provide rich RX status information, additional RX PPDU packets are added. Since there are so many differences mentioned above, we decide to propose a new driver. It has many authors, they are listed in alphabetic order: Chin-Yen Lee <timlee@realtek.com> Ping-Ke Shih <pkshih@realtek.com> Po Hao Huang <phhuang@realtek.com> Tzu-En Huang <tehuang@realtek.com> Vincent Fann <vincent_fann@realtek.com> Yan-Hsuan Chuang <tony0620emma@gmail.com> Zong-Zhe Yang <kevin_yang@realtek.com> Tested-by: Aaron Ma <aaron.ma@canonical.com> Tested-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20211008035627.19463-1-pkshih@realtek.com
Diffstat (limited to '')
-rw-r--r--drivers/net/wireless/realtek/rtw89/util.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/util.h b/drivers/net/wireless/realtek/rtw89/util.h
new file mode 100644
index 000000000000..229e81009de6
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw89/util.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+ * Copyright(c) 2019-2020 Realtek Corporation
+ */
+#ifndef __RTW89_UTIL_H__
+#define __RTW89_UTIL_H__
+
+#include "core.h"
+
+#define rtw89_iterate_vifs_bh(rtwdev, iterator, data) \
+ ieee80211_iterate_active_interfaces_atomic((rtwdev)->hw, \
+ IEEE80211_IFACE_ITER_NORMAL, iterator, data)
+
+/* call this function with rtwdev->mutex is held */
+#define rtw89_for_each_rtwvif(rtwdev, rtwvif) \
+ list_for_each_entry(rtwvif, &(rtwdev)->rtwvifs_list, list)
+
+#endif