diff options
| author | Bitterblue Smith <rtl8821cerfe2@gmail.com> | 2022-11-01 22:33:09 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2022-11-04 13:01:34 +0200 |
| commit | 2ad2a813b803593832fa10b2c3d6d6065aec17ad (patch) | |
| tree | e2547efb9c2d1a36dc3e3684359e579c01b69937 /drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c | |
| parent | 57b328bc79967a2392af6ac724d3fd36322cd7f2 (diff) | |
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_8188f.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c index 9f40d261ac71..5a5b7fa4283c 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c @@ -1658,6 +1658,37 @@ static void rtl8188f_set_crystal_cap(struct rtl8xxxu_priv *priv, u8 crystal_cap) cfo->crystal_cap = crystal_cap; } +static s8 rtl8188f_cck_rssi(struct rtl8xxxu_priv *priv, u8 cck_agc_rpt) +{ + s8 rx_pwr_all = 0x00; + u8 vga_idx, lna_idx; + + lna_idx = (cck_agc_rpt & 0xE0) >> 5; + vga_idx = cck_agc_rpt & 0x1F; + + switch (lna_idx) { + case 7: + if (vga_idx <= 27) + rx_pwr_all = -100 + 2 * (27 - vga_idx); + else + rx_pwr_all = -100; + break; + case 5: + rx_pwr_all = -74 + 2 * (21 - vga_idx); + break; + case 3: + rx_pwr_all = -60 + 2 * (20 - vga_idx); + break; + case 1: + rx_pwr_all = -44 + 2 * (19 - vga_idx); + break; + default: + break; + } + + return rx_pwr_all; +} + struct rtl8xxxu_fileops rtl8188fu_fops = { .parse_efuse = rtl8188fu_parse_efuse, .load_firmware = rtl8188fu_load_firmware, @@ -1682,6 +1713,7 @@ struct rtl8xxxu_fileops rtl8188fu_fops = { .report_connect = rtl8xxxu_gen2_report_connect, .fill_txdesc = rtl8xxxu_fill_txdesc_v2, .set_crystal_cap = rtl8188f_set_crystal_cap, + .cck_rssi = rtl8188f_cck_rssi, .writeN_block_size = 128, .rx_desc_size = sizeof(struct rtl8xxxu_rxdesc24), .tx_desc_size = sizeof(struct rtl8xxxu_txdesc40), |