From: Chin-Yen Lee <timlee@xxxxxxxxxxx> When net-detect is enabled, WoWLAN firmware will periodically scan until beacon or probe response of configured networks are received. To reduce power consumption, the FW-IPS mode is implemented to keep WiFi chip in idle mode between each scan. The FW-IPS is controlled by WoWLAN firmware to turn of some critical electrical components, and is different from the original IPS mode which most electrical components are turned off. Signed-off-by: Chin-Yen Lee <timlee@xxxxxxxxxxx> Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> --- drivers/net/wireless/realtek/rtw89/fw.c | 36 ++++++++++++++++++++++++ drivers/net/wireless/realtek/rtw89/fw.h | 10 +++++++ drivers/net/wireless/realtek/rtw89/wow.c | 34 +++++++++++++++++----- drivers/net/wireless/realtek/rtw89/wow.h | 16 +++++++++++ 4 files changed, 89 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c index 4c0a1aed6efd..e545d2a7fb49 100644 --- a/drivers/net/wireless/realtek/rtw89/fw.c +++ b/drivers/net/wireless/realtek/rtw89/fw.c @@ -6856,7 +6856,43 @@ int rtw89_fw_h2c_wow_gtk_ofld(struct rtw89_dev *rtwdev, goto fail; } return 0; +fail: + dev_kfree_skb_any(skb); + + return ret; +} + +int rtw89_fw_h2c_fwips(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif, + bool enable) +{ + struct rtw89_h2c_fwips *h2c; + u32 len = sizeof(*h2c); + struct sk_buff *skb; + int ret; + + skb = rtw89_fw_h2c_alloc_skb_with_hdr(rtwdev, len); + if (!skb) { + rtw89_err(rtwdev, "failed to alloc skb for fw ips\n"); + return -ENOMEM; + } + skb_put(skb, len); + h2c = (struct rtw89_h2c_fwips *)skb->data; + + h2c->w0 = le32_encode_bits(rtwvif->mac_id, RTW89_H2C_FW_IPS_W0_MACID) | + le32_encode_bits(enable, RTW89_H2C_FW_IPS_W0_ENABLE); + + rtw89_h2c_pkt_set_hdr(rtwdev, skb, FWCMD_TYPE_H2C, + H2C_CAT_MAC, + H2C_CL_MAC_PS, + H2C_FUNC_IPS_CFG, 0, 1, + len); + ret = rtw89_h2c_tx(rtwdev, skb, false); + if (ret) { + rtw89_err(rtwdev, "failed to send h2c\n"); + goto fail; + } + return 0; fail: dev_kfree_skb_any(skb); diff --git a/drivers/net/wireless/realtek/rtw89/fw.h b/drivers/net/wireless/realtek/rtw89/fw.h index 0b0c5b5c6bb9..1bbdf0613ca4 100644 --- a/drivers/net/wireless/realtek/rtw89/fw.h +++ b/drivers/net/wireless/realtek/rtw89/fw.h @@ -2748,6 +2748,13 @@ struct rtw89_h2c_scanofld_be { #define RTW89_H2C_SCANOFLD_BE_W9_SIZE_MACC GENMASK(15, 8) #define RTW89_H2C_SCANOFLD_BE_W9_SIZE_OP GENMASK(23, 16) +struct rtw89_h2c_fwips { + __le32 w0; +} __packed; + +#define RTW89_H2C_FW_IPS_W0_MACID GENMASK(7, 0) +#define RTW89_H2C_FW_IPS_W0_ENABLE BIT(8) + static inline void RTW89_SET_FWCMD_P2P_MACID(void *cmd, u32 val) { le32p_replace_bits((__le32 *)cmd, val, GENMASK(7, 0)); @@ -3965,6 +3972,7 @@ enum rtw89_wow_h2c_func { #define H2C_CL_MAC_PS 0x2 #define H2C_FUNC_MAC_LPS_PARM 0x0 #define H2C_FUNC_P2P_ACT 0x1 +#define H2C_FUNC_IPS_CFG 0x3 /* CLASS 3 - FW download */ #define H2C_CL_MAC_FWDL 0x3 @@ -4446,6 +4454,8 @@ int rtw89_fw_h2c_lps_parm(struct rtw89_dev *rtwdev, struct rtw89_lps_parm *lps_param); int rtw89_fw_h2c_lps_ch_info(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif); +int rtw89_fw_h2c_fwips(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif, + bool enable); struct sk_buff *rtw89_fw_h2c_alloc_skb_with_hdr(struct rtw89_dev *rtwdev, u32 len); struct sk_buff *rtw89_fw_h2c_alloc_skb_no_hdr(struct rtw89_dev *rtwdev, u32 len); int rtw89_fw_msg_reg(struct rtw89_dev *rtwdev, diff --git a/drivers/net/wireless/realtek/rtw89/wow.c b/drivers/net/wireless/realtek/rtw89/wow.c index 9882064ef68d..fa7fd6571051 100644 --- a/drivers/net/wireless/realtek/rtw89/wow.c +++ b/drivers/net/wireless/realtek/rtw89/wow.c @@ -687,17 +687,30 @@ static void rtw89_wow_enter_deep_ps(struct rtw89_dev *rtwdev) __rtw89_enter_ps_mode(rtwdev, rtwvif); } -static void rtw89_wow_enter_lps(struct rtw89_dev *rtwdev) +static void rtw89_wow_enter_ps(struct rtw89_dev *rtwdev) { struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif; struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; - rtw89_enter_lps(rtwdev, rtwvif, false); + if (rtw89_wow_mgd_linked(rtwdev)) + rtw89_enter_lps(rtwdev, rtwvif, false); + else if (rtw89_wow_no_link(rtwdev)) + rtw89_fw_h2c_fwips(rtwdev, rtwvif, true); } -static void rtw89_wow_leave_lps(struct rtw89_dev *rtwdev) +static void rtw89_wow_leave_ps(struct rtw89_dev *rtwdev, bool enable_wow) { - rtw89_leave_lps(rtwdev); + struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; + + if (rtw89_wow_mgd_linked(rtwdev)) { + rtw89_leave_lps(rtwdev); + } else if (rtw89_wow_no_link(rtwdev)) { + if (enable_wow) + rtw89_leave_ips(rtwdev); + else + rtw89_fw_h2c_fwips(rtwdev, rtwvif, false); + } } static int rtw89_wow_config_mac(struct rtw89_dev *rtwdev, bool enable_wow) @@ -1430,7 +1443,7 @@ static int rtw89_wow_enable(struct rtw89_dev *rtwdev) goto out; } - rtw89_wow_enter_lps(rtwdev); + rtw89_wow_enter_ps(rtwdev); ret = rtw89_wow_enable_trx_post(rtwdev); if (ret) { @@ -1455,7 +1468,7 @@ static int rtw89_wow_disable(struct rtw89_dev *rtwdev) goto out; } - rtw89_wow_leave_lps(rtwdev); + rtw89_wow_leave_ps(rtwdev, false); ret = rtw89_wow_fw_stop(rtwdev); if (ret) { @@ -1480,6 +1493,12 @@ static int rtw89_wow_disable(struct rtw89_dev *rtwdev) return ret; } +static void rtw89_wow_restore_ps(struct rtw89_dev *rtwdev) +{ + if (rtw89_wow_no_link(rtwdev)) + rtw89_enter_ips(rtwdev); +} + int rtw89_wow_resume(struct rtw89_dev *rtwdev) { int ret; @@ -1504,6 +1523,7 @@ int rtw89_wow_resume(struct rtw89_dev *rtwdev) if (ret) rtw89_err(rtwdev, "failed to disable wow\n"); + rtw89_wow_restore_ps(rtwdev); out: rtw89_wow_clear_wakeups(rtwdev); return ret; @@ -1519,7 +1539,7 @@ int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan) return ret; } - rtw89_wow_leave_lps(rtwdev); + rtw89_wow_leave_ps(rtwdev, true); ret = rtw89_wow_enable(rtwdev); if (ret) { diff --git a/drivers/net/wireless/realtek/rtw89/wow.h b/drivers/net/wireless/realtek/rtw89/wow.h index 0d90add0e88d..5eff3084119b 100644 --- a/drivers/net/wireless/realtek/rtw89/wow.h +++ b/drivers/net/wireless/realtek/rtw89/wow.h @@ -95,6 +95,22 @@ static inline int rtw89_wow_get_sec_hdr_len(struct rtw89_dev *rtwdev) } #ifdef CONFIG_PM +static inline bool rtw89_wow_mgd_linked(struct rtw89_dev *rtwdev) +{ + struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; + + return rtwvif->net_type == RTW89_NET_TYPE_INFRA; +} + +static inline bool rtw89_wow_no_link(struct rtw89_dev *rtwdev) +{ + struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; + + return rtwvif->net_type == RTW89_NET_TYPE_NO_LINK; +} + int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan); int rtw89_wow_resume(struct rtw89_dev *rtwdev); void rtw89_wow_parse_akm(struct rtw89_dev *rtwdev, struct sk_buff *skb); -- 2.25.1