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wifi: rtl8xxxu: Report the RSSI to the firmware

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Or in the case of RTL8188EU, report the RSSI to the rate control code.

The rate control code for RTL8188EU is less likely to switch to a lower
rate when the RSSI is high. The firmware-based rate control in the other
chips probably works the same way.

This affects all the chips, but it was only tested with RTL8188EU,
RTL8188FU, and RTL8192EU.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/2aab4f3f-e914-4fe1-f29a-deac91774d05@gmail.com
This commit is contained in:
Bitterblue Smith 2023-01-08 17:06:43 +02:00 committed by Kalle Valo
parent ebe8dee7ae
commit 3922dc9fbd
8 changed files with 68 additions and 0 deletions
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23
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
View File

@ -1168,6 +1168,26 @@ struct h2c_cmd {
u8 cmd;
u8 data;
} __packed bt_grant;
struct {
u8 cmd;
u8 macid;
u8 unknown0;
u8 rssi;
/*
* [0] - is_rx
* [1] - stbc_en
* [2] - noisy_decision
* [6] - bf_en
*/
u8 data;
/*
* [0:6] - ra_th_offset
* [7] - ra_offset_direction
*/
u8 ra_th_offset;
u8 unknown1;
u8 unknown2;
} __packed rssi_report;
};
};
@ -1585,6 +1605,7 @@ struct rtl8xxxu_fileops {
u32 ramask, u8 rateid, int sgi, int txbw_40mhz);
void (*report_connect) (struct rtl8xxxu_priv *priv,
u8 macid, bool connect);
void (*report_rssi) (struct rtl8xxxu_priv *priv, u8 macid, u8 rssi);
void (*fill_txdesc) (struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
struct ieee80211_tx_info *tx_info,
struct rtl8xxxu_txdesc32 *tx_desc, bool sgi,
@ -1686,6 +1707,8 @@ void rtl8xxxu_gen1_report_connect(struct rtl8xxxu_priv *priv,
u8 macid, bool connect);
void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
u8 macid, bool connect);
void rtl8xxxu_gen1_report_rssi(struct rtl8xxxu_priv *priv, u8 macid, u8 rssi);
void rtl8xxxu_gen2_report_rssi(struct rtl8xxxu_priv *priv, u8 macid, u8 rssi);
void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv);
void rtl8xxxu_gen1_enable_rf(struct rtl8xxxu_priv *priv);
void rtl8xxxu_gen1_disable_rf(struct rtl8xxxu_priv *priv);

6
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
View File

@ -1784,6 +1784,11 @@ rtl8188e_update_rate_mask(struct rtl8xxxu_priv *priv,
rtl8188e_arfb_refresh(ra);
}
static void rtl8188e_ra_set_rssi(struct rtl8xxxu_priv *priv, u8 macid, u8 rssi)
{
priv->ra_info.rssi_sta_ra = rssi;
}
void rtl8188e_ra_info_init_all(struct rtl8xxxu_ra_info *ra)
{
ra->decision_rate = DESC_RATE_MCS7;
@ -1842,6 +1847,7 @@ struct rtl8xxxu_fileops rtl8188eu_fops = {
.set_tx_power = rtl8188f_set_tx_power,
.update_rate_mask = rtl8188e_update_rate_mask,
.report_connect = rtl8xxxu_gen2_report_connect,
.report_rssi = rtl8188e_ra_set_rssi,
.fill_txdesc = rtl8xxxu_fill_txdesc_v3,
.set_crystal_cap = rtl8188f_set_crystal_cap,
.cck_rssi = rtl8188e_cck_rssi,

1
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
View File

@ -1732,6 +1732,7 @@ struct rtl8xxxu_fileops rtl8188fu_fops = {
.set_tx_power = rtl8188f_set_tx_power,
.update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
.report_connect = rtl8xxxu_gen2_report_connect,
.report_rssi = rtl8xxxu_gen2_report_rssi,
.fill_txdesc = rtl8xxxu_fill_txdesc_v2,
.set_crystal_cap = rtl8188f_set_crystal_cap,
.cck_rssi = rtl8188f_cck_rssi,

1
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c
View File

@ -609,6 +609,7 @@ struct rtl8xxxu_fileops rtl8192cu_fops = {
.set_tx_power = rtl8xxxu_gen1_set_tx_power,
.update_rate_mask = rtl8xxxu_update_rate_mask,
.report_connect = rtl8xxxu_gen1_report_connect,
.report_rssi = rtl8xxxu_gen1_report_rssi,
.fill_txdesc = rtl8xxxu_fill_txdesc_v1,
.cck_rssi = rtl8723a_cck_rssi,
.writeN_block_size = 128,

1
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
View File

@ -1784,6 +1784,7 @@ struct rtl8xxxu_fileops rtl8192eu_fops = {
.set_tx_power = rtl8192e_set_tx_power,
.update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
.report_connect = rtl8xxxu_gen2_report_connect,
.report_rssi = rtl8xxxu_gen2_report_rssi,
.fill_txdesc = rtl8xxxu_fill_txdesc_v2,
.set_crystal_cap = rtl8723a_set_crystal_cap,
.cck_rssi = rtl8192e_cck_rssi,

1
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c
View File

@ -478,6 +478,7 @@ struct rtl8xxxu_fileops rtl8723au_fops = {
.set_tx_power = rtl8xxxu_gen1_set_tx_power,
.update_rate_mask = rtl8xxxu_update_rate_mask,
.report_connect = rtl8xxxu_gen1_report_connect,
.report_rssi = rtl8xxxu_gen1_report_rssi,
.fill_txdesc = rtl8xxxu_fill_txdesc_v1,
.set_crystal_cap = rtl8723a_set_crystal_cap,
.cck_rssi = rtl8723a_cck_rssi,

1
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
View File

@ -1727,6 +1727,7 @@ struct rtl8xxxu_fileops rtl8723bu_fops = {
.set_tx_power = rtl8723b_set_tx_power,
.update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
.report_connect = rtl8xxxu_gen2_report_connect,
.report_rssi = rtl8xxxu_gen2_report_rssi,
.fill_txdesc = rtl8xxxu_fill_txdesc_v2,
.set_crystal_cap = rtl8723a_set_crystal_cap,
.cck_rssi = rtl8723b_cck_rssi,

34
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
View File

@ -4461,6 +4461,37 @@ void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
rtl8xxxu_gen2_h2c_cmd(priv, &h2c, sizeof(h2c.media_status_rpt));
}
void rtl8xxxu_gen1_report_rssi(struct rtl8xxxu_priv *priv, u8 macid, u8 rssi)
{
struct h2c_cmd h2c;
const int h2c_size = 4;
memset(&h2c, 0, sizeof(struct h2c_cmd));
h2c.rssi_report.cmd = H2C_SET_RSSI;
h2c.rssi_report.macid = macid;
h2c.rssi_report.rssi = rssi;
rtl8xxxu_gen1_h2c_cmd(priv, &h2c, h2c_size);
}
void rtl8xxxu_gen2_report_rssi(struct rtl8xxxu_priv *priv, u8 macid, u8 rssi)
{
struct h2c_cmd h2c;
int h2c_size = sizeof(h2c.rssi_report);
if (priv->rtl_chip == RTL8723B)
h2c_size = 4;
memset(&h2c, 0, sizeof(struct h2c_cmd));
h2c.rssi_report.cmd = H2C_8723B_RSSI_SETTING;
h2c.rssi_report.macid = macid;
h2c.rssi_report.rssi = rssi;
rtl8xxxu_gen2_h2c_cmd(priv, &h2c, h2c_size);
}
void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv)
{
u8 agg_ctrl, usb_spec, page_thresh, timeout;
@ -6697,6 +6728,9 @@ static void rtl8xxxu_watchdog_callback(struct work_struct *work)
signal = ieee80211_ave_rssi(vif);
priv->fops->report_rssi(priv, 0,
rtl8xxxu_signal_to_snr(signal));
if (priv->fops->set_crystal_cap)
rtl8xxxu_track_cfo(priv);