linux/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/def.h
Bitterblue Smith bcfcbf23a9 wifi: rtlwifi: rtl8192cu: Fix 2T2R chip type detection
rtl8192cu handles 1T1R devices (RTL8188CUS), 1T2R devices (RTL8191CU),
and 2T2R devices (RTL8192CU). The 2T2R devices were incorrectly detected
as 1T2R because of a mistake in the IS_92C_1T2R macro.

The visible effect of this is that the firmware was allowed to use
TX rates only up to MCS7.

Fix the IS_92C_1T2R macro.

Now my 2T2R device has much better upload speed.
Before: 46 Mbps.
After:  82 Mbps.

Also fix a debug message which was printing "RF_1T1R" even for 1T2R
chips.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/ed960059-5c77-422d-ac4e-fe9fc9d0d296@gmail.com
2024-02-15 13:10:47 +02:00

20 lines
656 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 2009-2012 Realtek Corporation.*/
#include "../rtl8192ce/def.h"
/*-------------------------------------------------------------------------
* Chip specific
*-------------------------------------------------------------------------*/
#define NORMAL_CHIP BIT(4)
#define CHIP_VENDOR_UMC BIT(5)
#define CHIP_VENDOR_UMC_B_CUT BIT(6)
#define IS_92C_1T2R(version) \
(((version) & CHIP_92C_1T2R) == CHIP_92C_1T2R)
#define IS_VENDOR_UMC(version) \
(((version) & CHIP_VENDOR_UMC) ? true : false)
#define CHIP_BONDING_92C_1T2R 0x1
#define CHIP_BONDING_IDENTIFIER(_value) (((_value) >> 22) & 0x3)