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wifi: rtw88: rtw8821c: Implement RTL8821CS (SDIO) efuse parsing

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The efuse of the SDIO RTL8821CS chip has only one known member: the mac
address is at offset 0x11a. Add a struct rtw8821cs_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/20230218152944.48842-4-martin.blumenstingl@googlemail.com
This commit is contained in:
Martin Blumenstingl 2023-02-18 16:29:42 +01:00 committed by Kalle Valo
parent 8599ea4058
commit 64e9d56465
2 changed files with 15 additions and 0 deletions
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9
drivers/net/wireless/realtek/rtw88/rtw8821c.c
View File

@ -32,6 +32,12 @@ static void rtw8821cu_efuse_parsing(struct rtw_efuse *efuse,
ether_addr_copy(efuse->addr, map->u.mac_addr);
}
static void rtw8821cs_efuse_parsing(struct rtw_efuse *efuse,
struct rtw8821c_efuse *map)
{
ether_addr_copy(efuse->addr, map->s.mac_addr);
}
enum rtw8821ce_rf_set {
SWITCH_TO_BTG,
SWITCH_TO_WLG,
@ -77,6 +83,9 @@ static int rtw8821c_read_efuse(struct rtw_dev *rtwdev, u8 *log_map)
case RTW_HCI_TYPE_USB:
rtw8821cu_efuse_parsing(efuse, map);
break;
case RTW_HCI_TYPE_SDIO:
rtw8821cs_efuse_parsing(efuse, map);
break;
default:
/* unsupported now */
return -ENOTSUPP;

6
drivers/net/wireless/realtek/rtw88/rtw8821c.h
View File

@ -65,6 +65,11 @@ struct rtw8821ce_efuse {
u8 res7;
};
struct rtw8821cs_efuse {
u8 res4[0x4a]; /* 0xd0 */
u8 mac_addr[ETH_ALEN]; /* 0x11a */
} __packed;
struct rtw8821c_efuse {
__le16 rtl_id;
u8 res0[0x0e];
@ -94,6 +99,7 @@ struct rtw8821c_efuse {
union {
struct rtw8821ce_efuse e;
struct rtw8821cu_efuse u;
struct rtw8821cs_efuse s;
};
};