iwlwifi: mvm: new NVM format in family 8000

Support the changes below:
- Fields and sections structure were changed.
- the NVM file built from DWord instead of Words.
- sections header format was changed.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

drivers/net/wireless/iwlwifi/iwl-drv.c

@@ -728,6 +728,12 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 			if (tlv_len != sizeof(u32))
 				goto invalid_tlv_len;
 			drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
+			drv->fw.valid_tx_ant = (drv->fw.phy_config &
+						FW_PHY_CFG_TX_CHAIN) >>
+						FW_PHY_CFG_TX_CHAIN_POS;
+			drv->fw.valid_rx_ant = (drv->fw.phy_config &
+						FW_PHY_CFG_RX_CHAIN) >>
+						FW_PHY_CFG_RX_CHAIN_POS;
 			break;
 		 case IWL_UCODE_TLV_SECURE_SEC_RT:
 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,

drivers/net/wireless/iwlwifi/iwl-drv.h

@@ -70,6 +70,20 @@
 #define DRV_COPYRIGHT	"Copyright(c) 2003- 2014 Intel Corporation"
 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
 
+/* radio config bits (actual values from NVM definition) */
+#define NVM_RF_CFG_DASH_MSK(x)   (x & 0x3)         /* bits 0-1   */
+#define NVM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) /* bits 2-3   */
+#define NVM_RF_CFG_TYPE_MSK(x)   ((x >> 4)  & 0x3) /* bits 4-5   */
+#define NVM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) /* bits 6-7   */
+#define NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) /* bits 8-11  */
+#define NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
+
+#define NVM_RF_CFG_FLAVOR_MSK_FAMILY_8000(x)   (x & 0xF)
+#define NVM_RF_CFG_DASH_MSK_FAMILY_8000(x)   ((x >> 4) & 0xF)
+#define NVM_RF_CFG_STEP_MSK_FAMILY_8000(x)   ((x >> 8) & 0xF)
+#define NVM_RF_CFG_TYPE_MSK_FAMILY_8000(x)   ((x >> 12) & 0xFFF)
+#define NVM_RF_CFG_TX_ANT_MSK_FAMILY_8000(x) ((x >> 24) & 0xF)
+#define NVM_RF_CFG_RX_ANT_MSK_FAMILY_8000(x) ((x >> 28) & 0xF)
 
 /**
  * DOC: Driver system flows - drv component

drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h

@@ -81,16 +81,17 @@ struct iwl_nvm_data {
 	bool sku_cap_band_24GHz_enable;
 	bool sku_cap_band_52GHz_enable;
 	bool sku_cap_11n_enable;
+	bool sku_cap_11ac_enable;
 	bool sku_cap_amt_enable;
 	bool sku_cap_ipan_enable;
 
-	u8 radio_cfg_type;
+	u16 radio_cfg_type;
 	u8 radio_cfg_step;
 	u8 radio_cfg_dash;
 	u8 radio_cfg_pnum;
 	u8 valid_tx_ant, valid_rx_ant;
 
-	u16 nvm_version;
+	u32 nvm_version;
 	s8 max_tx_pwr_half_dbm;
 
 	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];

drivers/net/wireless/iwlwifi/iwl-fw.h

@@ -288,6 +288,8 @@ struct iwl_fw {
 
 	struct iwl_tlv_calib_ctrl default_calib[IWL_UCODE_TYPE_MAX];
 	u32 phy_config;
+	u8 valid_tx_ant;
+	u8 valid_rx_ant;
 
 	bool mvm_fw;
 
@@ -296,14 +298,12 @@ struct iwl_fw {
 
 static inline u8 iwl_fw_valid_tx_ant(const struct iwl_fw *fw)
 {
-	return (fw->phy_config & FW_PHY_CFG_TX_CHAIN) >>
-		FW_PHY_CFG_TX_CHAIN_POS;
+	return fw->valid_tx_ant;
 }
 
 static inline u8 iwl_fw_valid_rx_ant(const struct iwl_fw *fw)
 {
-	return (fw->phy_config & FW_PHY_CFG_RX_CHAIN) >>
-		FW_PHY_CFG_RX_CHAIN_POS;
+	return fw->valid_rx_ant;
 }
 
 #endif  /* __iwl_fw_h__ */

drivers/net/wireless/iwlwifi/iwl-nvm-parse.h

@@ -75,6 +75,7 @@
 struct iwl_nvm_data *
 iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
 		   const __le16 *nvm_hw, const __le16 *nvm_sw,
-		   const __le16 *nvm_calib, u8 tx_chains, u8 rx_chains);
+		   const __le16 *nvm_calib, const __le16 *regulatory,
+		   const __le16 *mac_override, u8 tx_chains, u8 rx_chains);
 
 #endif /* __iwl_nvm_parse_h__ */

drivers/net/wireless/iwlwifi/mvm/fw-api.h

@@ -306,7 +306,6 @@ struct iwl_phy_cfg_cmd {
 #define PHY_CFG_RX_CHAIN_B	BIT(13)
 #define PHY_CFG_RX_CHAIN_C	BIT(14)
 
-#define NVM_MAX_NUM_SECTIONS	11
 
 /* Target of the NVM_ACCESS_CMD */
 enum {
@@ -318,8 +317,11 @@ enum {
 /* Section types for NVM_ACCESS_CMD */
 enum {
 	NVM_SECTION_TYPE_SW = 1,
+	NVM_SECTION_TYPE_REGULATORY = 3,
 	NVM_SECTION_TYPE_CALIBRATION = 4,
 	NVM_SECTION_TYPE_PRODUCTION = 5,
+	NVM_SECTION_TYPE_MAC_OVERRIDE = 11,
+	NVM_MAX_NUM_SECTIONS = 12,
 };
 
 /**

drivers/net/wireless/iwlwifi/mvm/nvm.c

@@ -228,13 +228,23 @@ static struct iwl_nvm_data *
 iwl_parse_nvm_sections(struct iwl_mvm *mvm)
 {
 	struct iwl_nvm_section *sections = mvm->nvm_sections;
-	const __le16 *hw, *sw, *calib;
+	const __le16 *hw, *sw, *calib, *regulatory, *mac_override;
 
 	/* Checking for required sections */
-	if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
-	    !mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data) {
-		IWL_ERR(mvm, "Can't parse empty NVM sections\n");
-		return NULL;
+	if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) {
+		if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
+		    !mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data) {
+			IWL_ERR(mvm, "Can't parse empty NVM sections\n");
+			return NULL;
+		}
+	} else {
+		if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
+		    !mvm->nvm_sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data ||
+		    !mvm->nvm_sections[NVM_SECTION_TYPE_REGULATORY].data) {
+			IWL_ERR(mvm,
+				"Can't parse empty family 8000 NVM sections\n");
+			return NULL;
+		}
 	}
 
 	if (WARN_ON(!mvm->cfg))
@@ -243,7 +253,12 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm)
 	hw = (const __le16 *)sections[mvm->cfg->nvm_hw_section_num].data;
 	sw = (const __le16 *)sections[NVM_SECTION_TYPE_SW].data;
 	calib = (const __le16 *)sections[NVM_SECTION_TYPE_CALIBRATION].data;
+	regulatory = (const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY].data;
+	mac_override =
+		(const __le16 *)sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data;
+
 	return iwl_parse_nvm_data(mvm->trans->dev, mvm->cfg, hw, sw, calib,
+				  regulatory, mac_override,
 				  iwl_fw_valid_tx_ant(mvm->fw),
 				  iwl_fw_valid_rx_ant(mvm->fw));
 }
@@ -285,6 +300,8 @@ static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
 
 #define NVM_WORD1_LEN(x) (8 * (x & 0x03FF))
 #define NVM_WORD2_ID(x) (x >> 12)
+#define NVM_WORD2_LEN_FAMILY_8000(x) (2 * ((x & 0xFF) << 8 | x >> 8))
+#define NVM_WORD1_ID_FAMILY_8000(x) (x >> 4)
 
 	IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from external NVM\n");
 
@@ -335,8 +352,16 @@ static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
 			break;
 		}
 
-		section_size = 2 * NVM_WORD1_LEN(le16_to_cpu(file_sec->word1));
-		section_id = NVM_WORD2_ID(le16_to_cpu(file_sec->word2));
+		if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) {
+			section_size =
+				2 * NVM_WORD1_LEN(le16_to_cpu(file_sec->word1));
+			section_id = NVM_WORD2_ID(le16_to_cpu(file_sec->word2));
+		} else {
+			section_size = 2 * NVM_WORD2_LEN_FAMILY_8000(
+						le16_to_cpu(file_sec->word2));
+			section_id = NVM_WORD1_ID_FAMILY_8000(
+						le16_to_cpu(file_sec->word1));
+		}
 
 		if (section_size > IWL_MAX_NVM_SECTION_SIZE) {
 			IWL_ERR(mvm, "ERROR - section too large (%d)\n",
@@ -406,6 +431,8 @@ int iwl_nvm_init(struct iwl_mvm *mvm)
 {
 	int ret, i, section;
 	u8 *nvm_buffer, *temp;
+	int nvm_to_read[NVM_MAX_NUM_SECTIONS];
+	int num_of_sections_to_read;
 
 	if (WARN_ON_ONCE(mvm->cfg->nvm_hw_section_num >= NVM_MAX_NUM_SECTIONS))
 		return -EINVAL;
@@ -418,12 +445,20 @@ int iwl_nvm_init(struct iwl_mvm *mvm)
 			return ret;
 	} else {
 		/* list of NVM sections we are allowed/need to read */
-		int nvm_to_read[] = {
-			mvm->cfg->nvm_hw_section_num,
-			NVM_SECTION_TYPE_SW,
-			NVM_SECTION_TYPE_CALIBRATION,
-			NVM_SECTION_TYPE_PRODUCTION,
-		};
+		if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) {
+			nvm_to_read[0] = mvm->cfg->nvm_hw_section_num;
+			nvm_to_read[1] = NVM_SECTION_TYPE_SW;
+			nvm_to_read[2] = NVM_SECTION_TYPE_CALIBRATION;
+			nvm_to_read[3] = NVM_SECTION_TYPE_PRODUCTION;
+			num_of_sections_to_read = 4;
+		} else {
+			nvm_to_read[0] = NVM_SECTION_TYPE_SW;
+			nvm_to_read[1] = NVM_SECTION_TYPE_CALIBRATION;
+			nvm_to_read[2] = NVM_SECTION_TYPE_PRODUCTION;
+			nvm_to_read[3] = NVM_SECTION_TYPE_REGULATORY;
+			nvm_to_read[4] = NVM_SECTION_TYPE_MAC_OVERRIDE;
+			num_of_sections_to_read = 5;
+		}
 
 		/* Read From FW NVM */
 		IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n");
@@ -433,7 +468,7 @@ int iwl_nvm_init(struct iwl_mvm *mvm)
 				     GFP_KERNEL);
 		if (!nvm_buffer)
 			return -ENOMEM;
-		for (i = 0; i < ARRAY_SIZE(nvm_to_read); i++) {
+		for (i = 0; i < num_of_sections_to_read; i++) {
 			section = nvm_to_read[i];
 			/* we override the constness for initial read */
 			ret = iwl_nvm_read_section(mvm, section, nvm_buffer);