Commit ad0a677b authored Feb 18, 2023 by Martin Blumenstingl Committed by Kalle Valo Feb 22, 2023

wifi: rtw88: rtw8822c: Implement RTL8822CS (SDIO) efuse parsing

The efuse of the SDIO RTL8822CS chip has only one known member: the mac
address is at offset 0x16a. Add a struct rtw8822cs_efuse describing this
and use it for copying the mac address when the SDIO bus is used.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230218152944.48842-6-martin.blumenstingl@googlemail.com

parent 9e688784

drivers/net/wireless/realtek/rtw88/rtw8822c.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -35,6 +35,12 @@ static void rtw8822cu_efuse_parsing(struct rtw_efuse *efuse,
		ether_addr_copy(efuse->addr, map->u.mac_addr);
		}

		static void rtw8822cs_efuse_parsing(struct rtw_efuse *efuse,
		struct rtw8822c_efuse *map)
		{
		ether_addr_copy(efuse->addr, map->s.mac_addr);
		}

		static int rtw8822c_read_efuse(struct rtw_dev rtwdev, u8 log_map)
		{
		struct rtw_efuse *efuse = &rtwdev->efuse;
		@@ -67,6 +73,9 @@ static int rtw8822c_read_efuse(struct rtw_dev rtwdev, u8 log_map)
		case RTW_HCI_TYPE_USB:
		rtw8822cu_efuse_parsing(efuse, map);
		break;
		case RTW_HCI_TYPE_SDIO:
		rtw8822cs_efuse_parsing(efuse, map);
		break;
		default:
		/* unsupported now */
		return -ENOTSUPP;

drivers/net/wireless/realtek/rtw88/rtw8822c.h

+7 −1

Original line number	Diff line number	Diff line
		@@ -16,6 +16,11 @@ struct rtw8822cu_efuse {
		u8 res2[0x3d];
		};

		struct rtw8822cs_efuse {
		u8 res0[0x4a]; /* 0x120 */
		u8 mac_addr[ETH_ALEN]; /* 0x16a */
		} __packed;

		struct rtw8822ce_efuse {
		u8 mac_addr[ETH_ALEN]; /* 0x120 */
		u8 vender_id[2];
		@@ -91,8 +96,9 @@ struct rtw8822c_efuse {
		u8 res9;
		u8 res10[0x42];
		union {
		struct rtw8822cu_efuse u;
		struct rtw8822ce_efuse e;
		struct rtw8822cu_efuse u;
		struct rtw8822cs_efuse s;
		};
		};