Commit 132dc4fe authored by Ping-Ke Shih's avatar Ping-Ke Shih Committed by Kalle Valo
Browse files

wifi: rtw89: 8852b: add chip_ops to read efuse 



efuse stores individual data about a chip itself, such as MAC address,
country code, RF and crystal calibration data, and so on. Define a struct
to help access efuse content, and copy them into a common struct.

Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220928084336.34981-8-pkshih@realtek.com
parent 08484e1f

drivers/net/wireless/realtek/rtw89/rtw8852b.c

+106 −0
Original line number Diff line number Diff line
@@ -24,6 +24,105 @@ static const struct rtw89_dle_mem rtw8852b_dle_mem_pcie[] = { 
			       NULL},

};



static void rtw8852be_efuse_parsing(struct rtw89_efuse *efuse,

				    struct rtw8852b_efuse *map)

{

	ether_addr_copy(efuse->addr, map->e.mac_addr);

	efuse->rfe_type = map->rfe_type;

	efuse->xtal_cap = map->xtal_k;

}



static void rtw8852b_efuse_parsing_tssi(struct rtw89_dev *rtwdev,

					struct rtw8852b_efuse *map)

{

	struct rtw89_tssi_info *tssi = &rtwdev->tssi;

	struct rtw8852b_tssi_offset *ofst[] = {&map->path_a_tssi, &map->path_b_tssi};

	u8 i, j;



	tssi->thermal[RF_PATH_A] = map->path_a_therm;

	tssi->thermal[RF_PATH_B] = map->path_b_therm;



	for (i = 0; i < RF_PATH_NUM_8852B; i++) {

		memcpy(tssi->tssi_cck[i], ofst[i]->cck_tssi,

		       sizeof(ofst[i]->cck_tssi));



		for (j = 0; j < TSSI_CCK_CH_GROUP_NUM; j++)

			rtw89_debug(rtwdev, RTW89_DBG_TSSI,

				    "[TSSI][EFUSE] path=%d cck[%d]=0x%x\n",

				    i, j, tssi->tssi_cck[i][j]);



		memcpy(tssi->tssi_mcs[i], ofst[i]->bw40_tssi,

		       sizeof(ofst[i]->bw40_tssi));

		memcpy(tssi->tssi_mcs[i] + TSSI_MCS_2G_CH_GROUP_NUM,

		       ofst[i]->bw40_1s_tssi_5g, sizeof(ofst[i]->bw40_1s_tssi_5g));



		for (j = 0; j < TSSI_MCS_CH_GROUP_NUM; j++)

			rtw89_debug(rtwdev, RTW89_DBG_TSSI,

				    "[TSSI][EFUSE] path=%d mcs[%d]=0x%x\n",

				    i, j, tssi->tssi_mcs[i][j]);

	}

}



static bool _decode_efuse_gain(u8 data, s8 *high, s8 *low)

{

	if (high)

		*high = sign_extend32(FIELD_GET(GENMASK(7,  4), data), 3);

	if (low)

		*low = sign_extend32(FIELD_GET(GENMASK(3,  0), data), 3);



	return data != 0xff;

}



static void rtw8852b_efuse_parsing_gain_offset(struct rtw89_dev *rtwdev,

					       struct rtw8852b_efuse *map)

{

	struct rtw89_phy_efuse_gain *gain = &rtwdev->efuse_gain;

	bool valid = false;



	valid |= _decode_efuse_gain(map->rx_gain_2g_cck,

				    &gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_2G_CCK],

				    &gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_2G_CCK]);

	valid |= _decode_efuse_gain(map->rx_gain_2g_ofdm,

				    &gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_2G_OFDM],

				    &gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_2G_OFDM]);

	valid |= _decode_efuse_gain(map->rx_gain_5g_low,

				    &gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_5G_LOW],

				    &gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_5G_LOW]);

	valid |= _decode_efuse_gain(map->rx_gain_5g_mid,

				    &gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_5G_MID],

				    &gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_5G_MID]);

	valid |= _decode_efuse_gain(map->rx_gain_5g_high,

				    &gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_5G_HIGH],

				    &gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_5G_HIGH]);



	gain->offset_valid = valid;

}



static int rtw8852b_read_efuse(struct rtw89_dev *rtwdev, u8 *log_map)

{

	struct rtw89_efuse *efuse = &rtwdev->efuse;

	struct rtw8852b_efuse *map;



	map = (struct rtw8852b_efuse *)log_map;



	efuse->country_code[0] = map->country_code[0];

	efuse->country_code[1] = map->country_code[1];

	rtw8852b_efuse_parsing_tssi(rtwdev, map);

	rtw8852b_efuse_parsing_gain_offset(rtwdev, map);



	switch (rtwdev->hci.type) {

	case RTW89_HCI_TYPE_PCIE:

		rtw8852be_efuse_parsing(efuse, map);

		break;

	default:

		return -EOPNOTSUPP;

	}



	rtw89_info(rtwdev, "chip rfe_type is %d\n", efuse->rfe_type);



	return 0;

}



static u32 rtw8852b_bb_cal_txpwr_ref(struct rtw89_dev *rtwdev,

				     enum rtw89_phy_idx phy_idx, s16 ref)

{
@@ -269,6 +368,7 @@ static int rtw8852b_mac_disable_bb_rf(struct rtw89_dev *rtwdev) 
static const struct rtw89_chip_ops rtw8852b_chip_ops = {

	.enable_bb_rf		= rtw8852b_mac_enable_bb_rf,

	.disable_bb_rf		= rtw8852b_mac_disable_bb_rf,

	.read_efuse		= rtw8852b_read_efuse,

	.set_txpwr		= rtw8852b_set_txpwr,

	.set_txpwr_ctrl		= rtw8852b_set_txpwr_ctrl,

	.init_txpwr_unit	= rtw8852b_init_txpwr_unit,
@@ -280,6 +380,12 @@ const struct rtw89_chip_info rtw8852b_chip_info = { 
	.fifo_size		= 196608,

	.dle_scc_rsvd_size	= 98304,

	.dle_mem		= rtw8852b_dle_mem_pcie,

	.sec_ctrl_efuse_size	= 4,

	.physical_efuse_size	= 1216,

	.logical_efuse_size	= 2048,

	.limit_efuse_size	= 1280,

	.dav_phy_efuse_size	= 96,

	.dav_log_efuse_size	= 16,

	.dma_ch_mask		= BIT(RTW89_DMA_ACH4) | BIT(RTW89_DMA_ACH5) |

				  BIT(RTW89_DMA_ACH6) | BIT(RTW89_DMA_ACH7) |

				  BIT(RTW89_DMA_B1MG) | BIT(RTW89_DMA_B1HI),

drivers/net/wireless/realtek/rtw89/rtw8852b.h

+75 −0
Original line number Diff line number Diff line
@@ -10,4 +10,79 @@ 
#define RF_PATH_NUM_8852B 2

#define BB_PATH_NUM_8852B 2



struct rtw8852b_u_efuse {

	u8 rsvd[0x88];

	u8 mac_addr[ETH_ALEN];

};



struct rtw8852b_e_efuse {

	u8 mac_addr[ETH_ALEN];

};



struct rtw8852b_tssi_offset {

	u8 cck_tssi[TSSI_CCK_CH_GROUP_NUM];

	u8 bw40_tssi[TSSI_MCS_2G_CH_GROUP_NUM];

	u8 rsvd[7];

	u8 bw40_1s_tssi_5g[TSSI_MCS_5G_CH_GROUP_NUM];

} __packed;



struct rtw8852b_efuse {

	u8 rsvd[0x210];

	struct rtw8852b_tssi_offset path_a_tssi;

	u8 rsvd1[10];

	struct rtw8852b_tssi_offset path_b_tssi;

	u8 rsvd2[94];

	u8 channel_plan;

	u8 xtal_k;

	u8 rsvd3;

	u8 iqk_lck;

	u8 rsvd4[5];

	u8 reg_setting:2;

	u8 tx_diversity:1;

	u8 rx_diversity:2;

	u8 ac_mode:1;

	u8 module_type:2;

	u8 rsvd5;

	u8 shared_ant:1;

	u8 coex_type:3;

	u8 ant_iso:1;

	u8 radio_on_off:1;

	u8 rsvd6:2;

	u8 eeprom_version;

	u8 customer_id;

	u8 tx_bb_swing_2g;

	u8 tx_bb_swing_5g;

	u8 tx_cali_pwr_trk_mode;

	u8 trx_path_selection;

	u8 rfe_type;

	u8 country_code[2];

	u8 rsvd7[3];

	u8 path_a_therm;

	u8 path_b_therm;

	u8 rsvd8[2];

	u8 rx_gain_2g_ofdm;

	u8 rsvd9;

	u8 rx_gain_2g_cck;

	u8 rsvd10;

	u8 rx_gain_5g_low;

	u8 rsvd11;

	u8 rx_gain_5g_mid;

	u8 rsvd12;

	u8 rx_gain_5g_high;

	u8 rsvd13[35];

	u8 path_a_cck_pwr_idx[6];

	u8 path_a_bw40_1tx_pwr_idx[5];

	u8 path_a_ofdm_1tx_pwr_idx_diff:4;

	u8 path_a_bw20_1tx_pwr_idx_diff:4;

	u8 path_a_bw20_2tx_pwr_idx_diff:4;

	u8 path_a_bw40_2tx_pwr_idx_diff:4;

	u8 path_a_cck_2tx_pwr_idx_diff:4;

	u8 path_a_ofdm_2tx_pwr_idx_diff:4;

	u8 rsvd14[0xf2];

	union {

		struct rtw8852b_u_efuse u;

		struct rtw8852b_e_efuse e;

	};

} __packed;



#endif