diff options
| author | Bitterblue Smith <rtl8821cerfe2@gmail.com> | 2022-11-01 23:33:09 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2022-11-04 14:01:34 +0300 |
| commit | 2ad2a813b803593832fa10b2c3d6d6065aec17ad (patch) | |
| tree | e2547efb9c2d1a36dc3e3684359e579c01b69937 /drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c | |
| parent | 57b328bc79967a2392af6ac724d3fd36322cd7f2 (diff) | |
| download | linux-2ad2a813b803593832fa10b2c3d6d6065aec17ad.tar.xz | |
wifi: rtl8xxxu: Fix the CCK RSSI calculation
The CCK RSSI calculation is incorrect for the RTL8723BU, RTL8192EU,
and RTL8188FU. Add new functions for these chips with code copied from
their vendor drivers. Use the old code only for the RTL8723AU and
RTL8192CU.
I didn't notice any difference in the reported signal strength with my
RTL8188FU, but I didn't look very hard either.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/926c838f-4997-698b-4da9-44582e2af99a@gmail.com
Diffstat (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c index 552763a2215c..8d8eb16a0970 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c @@ -386,6 +386,28 @@ void rtl8723a_set_crystal_cap(struct rtl8xxxu_priv *priv, u8 crystal_cap) cfo->crystal_cap = crystal_cap; } +s8 rtl8723a_cck_rssi(struct rtl8xxxu_priv *priv, u8 cck_agc_rpt) +{ + s8 rx_pwr_all = 0x00; + + switch (cck_agc_rpt & 0xc0) { + case 0xc0: + rx_pwr_all = -46 - (cck_agc_rpt & 0x3e); + break; + case 0x80: + rx_pwr_all = -26 - (cck_agc_rpt & 0x3e); + break; + case 0x40: + rx_pwr_all = -12 - (cck_agc_rpt & 0x3e); + break; + case 0x00: + rx_pwr_all = 16 - (cck_agc_rpt & 0x3e); + break; + } + + return rx_pwr_all; +} + struct rtl8xxxu_fileops rtl8723au_fops = { .parse_efuse = rtl8723au_parse_efuse, .load_firmware = rtl8723au_load_firmware, @@ -408,6 +430,7 @@ struct rtl8xxxu_fileops rtl8723au_fops = { .report_connect = rtl8xxxu_gen1_report_connect, .fill_txdesc = rtl8xxxu_fill_txdesc_v1, .set_crystal_cap = rtl8723a_set_crystal_cap, + .cck_rssi = rtl8723a_cck_rssi, .writeN_block_size = 1024, .rx_agg_buf_size = 16000, .tx_desc_size = sizeof(struct rtl8xxxu_txdesc32), |