> -----Original Message-----
> From: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
> Sent: Saturday, February 18, 2023 11:30 PM
> To: linux-wireless@xxxxxxxxxxxxxxx
> Cc: tony0620emma@xxxxxxxxx; kvalo@xxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Neo
> Jou <neojou@xxxxxxxxx>; Jernej Skrabec <jernej.skrabec@xxxxxxxxx>; Ping-Ke Shih <pkshih@xxxxxxxxxxx>;
> Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
> Subject: [PATCH v2 3/5] wifi: rtw88: rtw8821c: Implement RTL8821CS (SDIO) efuse parsing
>
> 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@xxxxxxxxxxxxxx>
Reviewed-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
> ---
> changes from v1 -> v2:
> - add the new function/union member/case statement last (after USB)
>
>
> drivers/net/wireless/realtek/rtw88/rtw8821c.c | 9 +++++++++
> drivers/net/wireless/realtek/rtw88/rtw8821c.h | 6 ++++++
> 2 files changed, 15 insertions(+)
>
> diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c
> b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
> index 17f800f6efbd..7ae0541d7b99 100644
> --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c
> +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
> @@ -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;
> diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.h
> b/drivers/net/wireless/realtek/rtw88/rtw8821c.h
> index 1c81260f3a54..fcff31688c45 100644
> --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.h
> +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.h
> @@ -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;
> };
> };
>
> --
> 2.39.2
