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

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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
This commit is contained in:
Martin Blumenstingl 2023-02-18 16:29:44 +01:00 committed by Kalle Valo
parent 9e688784b8
commit ad0a677bce
2 changed files with 16 additions and 1 deletions
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9
drivers/net/wireless/realtek/rtw88/rtw8822c.c
View file

@ -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;

8
drivers/net/wireless/realtek/rtw88/rtw8822c.h
View file

@ -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;
};
};