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wifi: rtw89: phy: add C2H event handler for report of FW scan

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Newer firmware will notify driver of the Packet Detection (PD)
value on the channel after switch channels during FW scan.

Signed-off-by: Kuan-Chung Chen <damon.chen@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250430055157.13623-2-pkshih@realtek.com
This commit is contained in:
Kuan-Chung Chen 2025-04-30 13:51:56 +08:00 committed by Ping-Ke Shih
parent 0ae36391c8
commit d31c42466b
3 changed files with 46 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/wireless/realtek/rtw89/fw.h
View File

@ -3623,6 +3623,19 @@ struct rtw89_c2h_ra_rpt {
#define RTW89_C2H_RA_RPT_W3_MD_SEL_B2 BIT(15)
#define RTW89_C2H_RA_RPT_W3_BW_B2 BIT(16)
struct rtw89_c2h_fw_scan_rpt {
struct rtw89_c2h_hdr hdr;
u8 phy_idx;
u8 band;
u8 center_ch;
u8 ofdm_pd_idx; /* in unit of 2 dBm */
#define PD_LOWER_BOUND_BASE 102
s8 cck_pd_idx;
u8 rsvd0;
u8 rsvd1;
u8 rsvd2;
} __packed;
/* For WiFi 6 chips:
* VHT, HE, HT-old: [6:4]: NSS, [3:0]: MCS
* HT-new: [6:5]: NA, [4:0]: MCS

35
drivers/net/wireless/realtek/rtw89/phy.c
View File

@ -3023,6 +3023,35 @@ void (* const rtw89_phy_c2h_ra_handler[])(struct rtw89_dev *rtwdev,
[RTW89_PHY_C2H_FUNC_TXSTS] = NULL,
};
static void
rtw89_phy_c2h_lowrt_rty(struct rtw89_dev *rtwdev, struct sk_buff *c2h, u32 len)
{
}
static void
rtw89_phy_c2h_fw_scan_rpt(struct rtw89_dev *rtwdev, struct sk_buff *c2h, u32 len)
{
const struct rtw89_c2h_fw_scan_rpt *c2h_rpt =
(const struct rtw89_c2h_fw_scan_rpt *)c2h->data;
rtw89_debug(rtwdev, RTW89_DBG_DIG,
"%s: band: %u, op_chan: %u, PD_low_bd(ofdm, cck): (-%d, %d), phy_idx: %u\n",
__func__, c2h_rpt->band, c2h_rpt->center_ch,
PD_LOWER_BOUND_BASE - (c2h_rpt->ofdm_pd_idx << 1),
c2h_rpt->cck_pd_idx, c2h_rpt->phy_idx);
}
static
void (* const rtw89_phy_c2h_dm_handler[])(struct rtw89_dev *rtwdev,
struct sk_buff *c2h, u32 len) = {
[RTW89_PHY_C2H_DM_FUNC_FW_TEST] = NULL,
[RTW89_PHY_C2H_DM_FUNC_FW_TRIG_TX_RPT] = NULL,
[RTW89_PHY_C2H_DM_FUNC_SIGB] = NULL,
[RTW89_PHY_C2H_DM_FUNC_LOWRT_RTY] = rtw89_phy_c2h_lowrt_rty,
[RTW89_PHY_C2H_DM_FUNC_MCC_DIG] = NULL,
[RTW89_PHY_C2H_DM_FUNC_FW_SCAN] = rtw89_phy_c2h_fw_scan_rpt,
};
static void rtw89_phy_c2h_rfk_rpt_log(struct rtw89_dev *rtwdev,
enum rtw89_phy_c2h_rfk_log_func func,
void *content, u16 len)
@ -3558,9 +3587,9 @@ void rtw89_phy_c2h_handle(struct rtw89_dev *rtwdev, struct sk_buff *skb,
handler = rtw89_phy_c2h_rfk_report_handler[func];
break;
case RTW89_PHY_C2H_CLASS_DM:
if (func == RTW89_PHY_C2H_DM_FUNC_LOWRT_RTY)
return;
fallthrough;
if (func < ARRAY_SIZE(rtw89_phy_c2h_dm_handler))
handler = rtw89_phy_c2h_dm_handler[func];
break;
default:
rtw89_info(rtwdev, "PHY c2h class %d not support\n", class);
return;

1
drivers/net/wireless/realtek/rtw89/phy.h
View File

@ -164,6 +164,7 @@ enum rtw89_phy_c2h_dm_func {
RTW89_PHY_C2H_DM_FUNC_SIGB,
RTW89_PHY_C2H_DM_FUNC_LOWRT_RTY,
RTW89_PHY_C2H_DM_FUNC_MCC_DIG,
RTW89_PHY_C2H_DM_FUNC_FW_SCAN = 0xc,
RTW89_PHY_C2H_DM_FUNC_NUM,
};