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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     Jay Sweat <jjsweat@outlook.com>
CC:     "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: RE: Realtek 8822ce p2p support
Thread-Topic: Realtek 8822ce p2p support
Thread-Index: AQHaHJ6/35nL8BzLVE+iP+/w63/TCrCFjBhAgAEOZs2AAHCucA==
Date:   Thu, 23 Nov 2023 00:30:36 +0000
Message-ID: <5ffd01e6c8a1464795d612de1c6fa8a4@realtek.com>
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> -----Original Message-----
> From: Jay Sweat <jjsweat@outlook.com>
> Sent: Thursday, November 23, 2023 1:32 AM
> To: Ping-Ke Shih <pkshih@realtek.com>
> Cc: linux-wireless@vger.kernel.org
> Subject: Re: Realtek 8822ce p2p support
> 
> I am interesting, but Im not sure how much help I can be. I only have a basic knowledge of linux and next
> to no development skills.

First step is to download Linux kernel source and build rtw88 driver or whole kernel.
Also, you need a user-space application called wpa_supplicant [1] to make P2P connection.

Declare P2P capability by below patch, and then see how it works and debug... 

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 4a33d2e47f33..ad988d6b204b 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -110,7 +110,9 @@ static const struct ieee80211_iface_limit rtw_iface_limits[] = {
        },
        {
                .max = 1,
-               .types = BIT(NL80211_IFTYPE_AP),
+               .types = BIT(NL80211_IFTYPE_AP) |
+                        BIT(NL80211_IFTYPE_P2P_CLIENT) |
+                        BIT(NL80211_IFTYPE_P2P_GO);
        }
 };

@@ -2232,7 +2234,9 @@ int rtw_register_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw)
        hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
                                     BIT(NL80211_IFTYPE_AP) |
                                     BIT(NL80211_IFTYPE_ADHOC) |
-                                    BIT(NL80211_IFTYPE_MESH_POINT);
+                                    BIT(NL80211_IFTYPE_MESH_POINT) |
+                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
+                                    BIT(NL80211_IFTYPE_P2P_GO);
        hw->wiphy->available_antennas_tx = hal->antenna_tx;
        hw->wiphy->available_antennas_rx = hal->antenna_rx;


[1] https://w1.fi/cvs.html