[PATCH v2 4/4] Bluetooth: hci_qca: add qcom,product-variant properties

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Since different products use the same SoC chip, features cannot
be included in a single patch. Use the qcom,product-variant to
load the appropriate firmware.

The qcom,product-variant provides product line information, which
the driver uses to load firmware from different directories.

If it's not defined in dts, the default firmware will be loaded.

Signed-off-by: Cheng Jiang <quic_chejiang@xxxxxxxxxxx>
---
 drivers/bluetooth/btqca.c   | 142 +++++++++++++++++++++++++++++-------
 drivers/bluetooth/btqca.h   |  11 ++-
 drivers/bluetooth/hci_qca.c |  73 +++++++++---------
 3 files changed, 164 insertions(+), 62 deletions(-)

diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index dfbbac92242a..0845e5a60412 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -700,8 +700,79 @@ static int qca_check_bdaddr(struct hci_dev *hdev, const struct qca_fw_config *co
 	return 0;
 }
 
-static void qca_generate_hsp_nvm_name(char *fwname, size_t max_size,
-		struct qca_btsoc_version ver, u8 rom_ver, u16 bid)
+
+const char *qca_get_soc_name(enum qca_btsoc_type soc_type)
+{
+	const char *soc_name = "";
+
+	switch (soc_type) {
+	case QCA_QCA2066:
+		soc_name = "QCA2066";
+		break;
+
+	case QCA_QCA6698:
+		soc_name = "QCA6698";
+		break;
+
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+		soc_name = "WCN399x";
+		break;
+
+	case QCA_WCN6750:
+		soc_name = "WCN6750";
+		break;
+
+	case QCA_WCN6855:
+		soc_name = "WCN6855";
+		break;
+
+	case QCA_WCN7850:
+		soc_name = "WCN7850";
+		break;
+
+	default:
+		soc_name = "ROME/QCA6390";
+	}
+
+	return soc_name;
+}
+EXPORT_SYMBOL_GPL(qca_get_soc_name);
+
+static void qca_get_firmware_path(enum qca_btsoc_type soc_type, char *fw_path,
+		size_t max_size, enum qca_product_type product_type)
+{
+	const char *fw_dir = NULL;
+
+	switch (product_type) {
+	case QCA_MCC:
+		fw_dir = "qca";
+		break;
+	case QCA_CE:
+		fw_dir = "qca/ce";
+		break;
+	case QCA_IOT:
+		fw_dir = "qca/iot";
+		break;
+	case QCA_AUTO:
+		fw_dir = "qca/auto";
+		break;
+	default:
+		fw_dir = "qca";
+		break;
+	}
+
+	if (product_type == QCA_IOT)
+		snprintf(fw_path, max_size, "%s/%s", fw_dir, qca_get_soc_name(soc_type));
+	else
+		snprintf(fw_path, max_size, "%s", fw_dir);
+}
+
+static void qca_generate_hsp_nvm_name(enum qca_btsoc_type soc_type, char *fwname,
+		size_t max_size, const char *fw_path, struct qca_btsoc_version ver, u8 rom_ver,
+		u16 bid)
 {
 	const char *variant;
 
@@ -712,33 +783,36 @@ static void qca_generate_hsp_nvm_name(char *fwname, size_t max_size,
 		variant = "";
 
 	if (bid == 0x0)
-		snprintf(fwname, max_size, "qca/hpnv%02x%s.bin", rom_ver, variant);
+		snprintf(fwname, max_size, "%s/hpnv%02x%s.bin", fw_path, rom_ver, variant);
 	else
-		snprintf(fwname, max_size, "qca/hpnv%02x%s.%x", rom_ver, variant, bid);
+		snprintf(fwname, max_size, "%s/hpnv%02x%s.%x", fw_path, rom_ver, variant, bid);
 }
 
-static inline void qca_get_nvm_name_generic(struct qca_fw_config *cfg,
+static inline void qca_get_nvm_name_generic(struct qca_fw_config *cfg, const char *fw_path,
 					    const char *stem, u8 rom_ver, u16 bid)
 {
 	if (bid == 0x0)
-		snprintf(cfg->fwname, sizeof(cfg->fwname), "qca/%snv%02x.bin", stem, rom_ver);
+		snprintf(cfg->fwname, sizeof(cfg->fwname),
+			 "%s/%snv%02x.bin", fw_path, stem, rom_ver);
 	else if (bid & 0xff00)
 		snprintf(cfg->fwname, sizeof(cfg->fwname),
-			 "qca/%snv%02x.b%x", stem, rom_ver, bid);
+			 "%s/%snv%02x.b%x", fw_path, stem, rom_ver, bid);
 	else
 		snprintf(cfg->fwname, sizeof(cfg->fwname),
-			 "qca/%snv%02x.b%02x", stem, rom_ver, bid);
+			 "%s/%snv%02x.b%02x", fw_path, stem, rom_ver, bid);
 }
 
 int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 		   enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
-		   const char *firmware_name)
+		   const char *firmware_name, uint32_t product_variant)
 {
 	struct qca_fw_config config = {};
 	int err;
 	u8 rom_ver = 0;
 	u32 soc_ver;
 	u16 boardid = 0;
+	enum qca_product_type product_type;
+	char fw_path[64] = {0};
 
 	bt_dev_dbg(hdev, "QCA setup on UART");
 
@@ -759,6 +833,10 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	if (soc_type == QCA_WCN6750)
 		qca_send_patch_config_cmd(hdev);
 
+	/* Get the f/w path based on product variant */
+	product_type = (product_variant >> 16) & 0xff;
+	qca_get_firmware_path(soc_type, fw_path, sizeof(fw_path), product_type);
+
 	/* Download rampatch file */
 	config.type = TLV_TYPE_PATCH;
 	switch (soc_type) {
@@ -766,19 +844,23 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	case QCA_WCN3991:
 	case QCA_WCN3998:
 		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/crbtfw%02x.tlv", rom_ver);
+			 "%s/crbtfw%02x.tlv", fw_path, rom_ver);
 		break;
 	case QCA_WCN3988:
 		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/apbtfw%02x.tlv", rom_ver);
+			 "%s/apbtfw%02x.tlv", fw_path, rom_ver);
 		break;
 	case QCA_QCA2066:
 		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/hpbtfw%02x.tlv", rom_ver);
+			 "%s/hpbtfw%02x.tlv", fw_path, rom_ver);
 		break;
 	case QCA_QCA6390:
 		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/htbtfw%02x.tlv", rom_ver);
+			 "%s/htbtfw%02x.tlv", fw_path, rom_ver);
+		break;
+	case QCA_QCA6698:
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "%s/hpbtfw%02x.tlv", fw_path, rom_ver);
 		break;
 	case QCA_WCN6750:
 		/* Choose mbn file by default.If mbn file is not found
@@ -786,19 +868,19 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 		 */
 		config.type = ELF_TYPE_PATCH;
 		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/msbtfw%02x.mbn", rom_ver);
+			 "%s/msbtfw%02x.mbn", fw_path, rom_ver);
 		break;
 	case QCA_WCN6855:
 		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/hpbtfw%02x.tlv", rom_ver);
+			 "%s/hpbtfw%02x.tlv", fw_path, rom_ver);
 		break;
 	case QCA_WCN7850:
 		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/hmtbtfw%02x.tlv", rom_ver);
+			 "%s/hmtbtfw%02x.tlv", fw_path, rom_ver);
 		break;
 	default:
 		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/rampatch_%08x.bin", soc_ver);
+			 "%s/rampatch_%08x.bin", fw_path, soc_ver);
 	}
 
 	err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
@@ -810,7 +892,8 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	/* Give the controller some time to get ready to receive the NVM */
 	msleep(10);
 
-	if (soc_type == QCA_QCA2066 || soc_type == QCA_WCN7850)
+	if (soc_type == QCA_QCA2066 || soc_type == QCA_WCN7850 ||
+		soc_type == QCA_QCA6698)
 		qca_read_fw_board_id(hdev, &boardid);
 
 	/* Download NVM configuration */
@@ -825,39 +908,40 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 		case QCA_WCN3998:
 			if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID) {
 				snprintf(config.fwname, sizeof(config.fwname),
-					 "qca/crnv%02xu.bin", rom_ver);
+					 "%s/crnv%02xu.bin", fw_path, rom_ver);
 			} else {
 				snprintf(config.fwname, sizeof(config.fwname),
-					 "qca/crnv%02x.bin", rom_ver);
+					 "%s/crnv%02x.bin", fw_path, rom_ver);
 			}
 			break;
 		case QCA_WCN3988:
 			snprintf(config.fwname, sizeof(config.fwname),
-				 "qca/apnv%02x.bin", rom_ver);
+				 "%s/apnv%02x.bin", fw_path, rom_ver);
 			break;
 		case QCA_QCA2066:
-			qca_generate_hsp_nvm_name(config.fwname,
-				sizeof(config.fwname), ver, rom_ver, boardid);
+		case QCA_QCA6698:
+			qca_generate_hsp_nvm_name(soc_type, config.fwname,
+				sizeof(config.fwname), fw_path, ver, rom_ver, boardid);
 			break;
 		case QCA_QCA6390:
 			snprintf(config.fwname, sizeof(config.fwname),
-				 "qca/htnv%02x.bin", rom_ver);
+				 "%s/htnv%02x.bin", fw_path, rom_ver);
 			break;
 		case QCA_WCN6750:
 			snprintf(config.fwname, sizeof(config.fwname),
-				 "qca/msnv%02x.bin", rom_ver);
+				 "%s/msnv%02x.bin", fw_path, rom_ver);
 			break;
 		case QCA_WCN6855:
 			snprintf(config.fwname, sizeof(config.fwname),
-				 "qca/hpnv%02x.bin", rom_ver);
+				 "%s/hpnv%02x.bin", fw_path, rom_ver);
 			break;
 		case QCA_WCN7850:
-			qca_get_nvm_name_generic(&config, "hmt", rom_ver, boardid);
+			qca_get_nvm_name_generic(&config, "hmt", fw_path, rom_ver, boardid);
 			break;
 
 		default:
 			snprintf(config.fwname, sizeof(config.fwname),
-				 "qca/nvm_%08x.bin", soc_ver);
+				 "%s/nvm_%08x.bin", fw_path, soc_ver);
 		}
 	}
 
@@ -871,6 +955,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	case QCA_WCN3991:
 	case QCA_QCA2066:
 	case QCA_QCA6390:
+	case QCA_QCA6698:
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
@@ -909,6 +994,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
+	case QCA_QCA6698:
 		/* get fw build info */
 		err = qca_read_fw_build_info(hdev);
 		if (err < 0)
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index bb5207d7a8c7..baa3f979d017 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -151,21 +151,30 @@ enum qca_btsoc_type {
 	QCA_WCN3991,
 	QCA_QCA2066,
 	QCA_QCA6390,
+	QCA_QCA6698,
 	QCA_WCN6750,
 	QCA_WCN6855,
 	QCA_WCN7850,
 };
 
+enum qca_product_type {
+	QCA_MCC = 0,
+	QCA_CE,
+	QCA_IOT,
+	QCA_AUTO,
+};
+
 #if IS_ENABLED(CONFIG_BT_QCA)
 
 int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 		   enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
-		   const char *firmware_name);
+		   const char *firmware_name, uint32_t product_variant);
 int qca_read_soc_version(struct hci_dev *hdev, struct qca_btsoc_version *ver,
 			 enum qca_btsoc_type);
 int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 int qca_send_pre_shutdown_cmd(struct hci_dev *hdev);
+const char *qca_get_soc_name(enum qca_btsoc_type soc_type);
 #else
 
 static inline int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 37129e6cb0eb..69fec890eb8c 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -227,6 +227,7 @@ struct qca_serdev {
 	struct qca_power *bt_power;
 	u32 init_speed;
 	u32 oper_speed;
+	u32 product_variant;
 	bool bdaddr_property_broken;
 	const char *firmware_name;
 };
@@ -1361,6 +1362,7 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
+	case QCA_QCA6698:
 		usleep_range(1000, 10000);
 		break;
 
@@ -1447,6 +1449,7 @@ static int qca_check_speeds(struct hci_uart *hu)
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
+	case QCA_QCA6698:
 		if (!qca_get_speed(hu, QCA_INIT_SPEED) &&
 		    !qca_get_speed(hu, QCA_OPER_SPEED))
 			return -EINVAL;
@@ -1489,6 +1492,7 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
 		case QCA_WCN6750:
 		case QCA_WCN6855:
 		case QCA_WCN7850:
+		case QCA_QCA6698:
 			hci_uart_set_flow_control(hu, true);
 			break;
 
@@ -1523,6 +1527,7 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
 		case QCA_WCN6750:
 		case QCA_WCN6855:
 		case QCA_WCN7850:
+		case QCA_QCA6698:
 			hci_uart_set_flow_control(hu, false);
 			break;
 
@@ -1803,6 +1808,7 @@ static int qca_power_on(struct hci_dev *hdev)
 	case QCA_WCN6855:
 	case QCA_WCN7850:
 	case QCA_QCA6390:
+	case QCA_QCA6698:
 		ret = qca_regulator_init(hu);
 		break;
 
@@ -1858,7 +1864,6 @@ static int qca_setup(struct hci_uart *hu)
 	int ret;
 	struct qca_btsoc_version ver;
 	struct qca_serdev *qcadev;
-	const char *soc_name;
 
 	ret = qca_check_speeds(hu);
 	if (ret)
@@ -1873,34 +1878,7 @@ static int qca_setup(struct hci_uart *hu)
 	 */
 	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 
-	switch (soc_type) {
-	case QCA_QCA2066:
-		soc_name = "qca2066";
-		break;
-
-	case QCA_WCN3988:
-	case QCA_WCN3990:
-	case QCA_WCN3991:
-	case QCA_WCN3998:
-		soc_name = "wcn399x";
-		break;
-
-	case QCA_WCN6750:
-		soc_name = "wcn6750";
-		break;
-
-	case QCA_WCN6855:
-		soc_name = "wcn6855";
-		break;
-
-	case QCA_WCN7850:
-		soc_name = "wcn7850";
-		break;
-
-	default:
-		soc_name = "ROME/QCA6390";
-	}
-	bt_dev_info(hdev, "setting up %s", soc_name);
+	bt_dev_info(hdev, "setting up %s", qca_get_soc_name(soc_type));
 
 	qca->memdump_state = QCA_MEMDUMP_IDLE;
 
@@ -1919,6 +1897,7 @@ static int qca_setup(struct hci_uart *hu)
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
+	case QCA_QCA6698:
 		qcadev = serdev_device_get_drvdata(hu->serdev);
 		if (qcadev->bdaddr_property_broken)
 			set_bit(HCI_QUIRK_BDADDR_PROPERTY_BROKEN, &hdev->quirks);
@@ -1952,6 +1931,7 @@ static int qca_setup(struct hci_uart *hu)
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
+	case QCA_QCA6698:
 		break;
 
 	default:
@@ -1963,7 +1943,7 @@ static int qca_setup(struct hci_uart *hu)
 
 	/* Setup patch / NVM configurations */
 	ret = qca_uart_setup(hdev, qca_baudrate, soc_type, ver,
-			firmware_name);
+			firmware_name, qcadev->product_variant);
 	if (!ret) {
 		clear_bit(QCA_IBS_DISABLED, &qca->flags);
 		qca_debugfs_init(hdev);
@@ -2089,6 +2069,20 @@ static const struct qca_device_data qca_soc_data_qca6390 __maybe_unused = {
 	.num_vregs = 0,
 };
 
+static const struct qca_device_data qca_soc_data_qca6698 __maybe_unused = {
+	.soc_type = QCA_QCA6698,
+	.vregs = (struct qca_vreg []) {
+		{ "vddio", 5000 },
+		{ "vddbtcxmx", 126000 },
+		{ "vddrfacmn", 12500 },
+		{ "vddrfa0p8", 102000 },
+		{ "vddrfa1p7", 302000 },
+		{ "vddrfa1p2", 257000 },
+	},
+	.num_vregs = 6,
+	.capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
+};
+
 static const struct qca_device_data qca_soc_data_wcn6750 __maybe_unused = {
 	.soc_type = QCA_WCN6750,
 	.vregs = (struct qca_vreg []) {
@@ -2165,7 +2159,7 @@ static void qca_power_shutdown(struct hci_uart *hu)
 		pwrseq_power_off(power->pwrseq);
 		set_bit(QCA_BT_OFF, &qca->flags);
 		return;
-        }
+	}
 
 	switch (soc_type) {
 	case QCA_WCN3988:
@@ -2179,6 +2173,7 @@ static void qca_power_shutdown(struct hci_uart *hu)
 
 	case QCA_WCN6750:
 	case QCA_WCN6855:
+	case QCA_QCA6698:
 		gpiod_set_value_cansleep(qcadev->bt_en, 0);
 		msleep(100);
 		qca_regulator_disable(qcadev);
@@ -2313,6 +2308,12 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 					 &qcadev->firmware_name);
 	device_property_read_u32(&serdev->dev, "max-speed",
 				 &qcadev->oper_speed);
+	device_property_read_u32(&serdev->dev, "qcom,product-variant",
+				 &qcadev->product_variant);
+
+	if (qcadev->product_variant != 0)
+		BT_INFO("QC Product Variant: 0x%08x", qcadev->product_variant);
+
 	if (!qcadev->oper_speed)
 		BT_DBG("UART will pick default operating speed");
 
@@ -2333,6 +2334,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 	case QCA_WCN6855:
 	case QCA_WCN7850:
 	case QCA_QCA6390:
+	case QCA_QCA6698:
 		qcadev->bt_power = devm_kzalloc(&serdev->dev,
 						sizeof(struct qca_power),
 						GFP_KERNEL);
@@ -2346,6 +2348,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 	switch (qcadev->btsoc_type) {
 	case QCA_WCN6855:
 	case QCA_WCN7850:
+	case QCA_QCA6698:
 		if (!device_property_present(&serdev->dev, "enable-gpios")) {
 			/*
 			 * Backward compatibility with old DT sources. If the
@@ -2380,7 +2383,8 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 					       GPIOD_OUT_LOW);
 		if (IS_ERR(qcadev->bt_en) &&
 		    (data->soc_type == QCA_WCN6750 ||
-		     data->soc_type == QCA_WCN6855)) {
+		     data->soc_type == QCA_WCN6855 ||
+		     data->soc_type == QCA_QCA6698)) {
 			dev_err(&serdev->dev, "failed to acquire BT_EN gpio\n");
 			return PTR_ERR(qcadev->bt_en);
 		}
@@ -2393,7 +2397,8 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 		if (IS_ERR(qcadev->sw_ctrl) &&
 		    (data->soc_type == QCA_WCN6750 ||
 		     data->soc_type == QCA_WCN6855 ||
-		     data->soc_type == QCA_WCN7850)) {
+		     data->soc_type == QCA_WCN7850 ||
+		     data->soc_type == QCA_QCA6698)) {
 			dev_err(&serdev->dev, "failed to acquire SW_CTRL gpio\n");
 			return PTR_ERR(qcadev->sw_ctrl);
 		}
@@ -2475,6 +2480,7 @@ static void qca_serdev_remove(struct serdev_device *serdev)
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
+	case QCA_QCA6698:
 		if (power->vregs_on)
 			qca_power_shutdown(&qcadev->serdev_hu);
 		break;
@@ -2669,6 +2675,7 @@ static const struct of_device_id qca_bluetooth_of_match[] = {
 	{ .compatible = "qcom,qca2066-bt", .data = &qca_soc_data_qca2066},
 	{ .compatible = "qcom,qca6174-bt" },
 	{ .compatible = "qcom,qca6390-bt", .data = &qca_soc_data_qca6390},
+	{ .compatible = "qcom,qca6698-bt", .data = &qca_soc_data_qca6698},
 	{ .compatible = "qcom,qca9377-bt" },
 	{ .compatible = "qcom,wcn3988-bt", .data = &qca_soc_data_wcn3988},
 	{ .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},
-- 
2.25.1





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