Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2020-04-17

Here's the first bluetooth-next pull request for the 5.8 kernel:

 - Added debugfs option to control MITM flag usage during pairing
 - Added new BT_MODE socket option
 - Added support for Qualcom QCA6390 device
 - Added support for Realtek RTL8761B device
 - Added support for mSBC audio codec over USB endpoints
 - Added framework for Microsoft HCI vendor extensions
 - Added new Read Security Information management command
 - Fixes/cleanup to link layer privacy related code
 - Various other smaller cleanups & fixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 203 insertions, 61 deletions

diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index a16845c0751d..3ea866d44568 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -32,7 +32,7 @@ int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,
 	 * VSE event. WCN3991 sends version command response as a payload to
 	 * command complete event.
 	 */
-	if (soc_type == QCA_WCN3991) {
+	if (soc_type >= QCA_WCN3991) {
 		event_type = 0;
 		rlen += 1;
 		rtype = EDL_PATCH_VER_REQ_CMD;
@@ -69,7 +69,7 @@ int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,
 		goto out;
 	}
 
-	if (soc_type == QCA_WCN3991)
+	if (soc_type >= QCA_WCN3991)
 		memmove(&edl->data, &edl->data[1], sizeof(*ver));
 
 	ver = (struct qca_btsoc_version *)(edl->data);
@@ -217,7 +217,7 @@ static void qca_tlv_check_data(struct qca_fw_config *config,
 				tlv_nvm->data[0] |= 0x80;
 
 				/* UART Baud Rate */
-				if (soc_type == QCA_WCN3991)
+				if (soc_type >= QCA_WCN3991)
 					tlv_nvm->data[1] = nvm_baud_rate;
 				else
 					tlv_nvm->data[2] = nvm_baud_rate;
@@ -268,7 +268,7 @@ static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
 	 * VSE event. WCN3991 sends version command response as a payload to
 	 * command complete event.
 	 */
-	if (soc_type == QCA_WCN3991) {
+	if (soc_type >= QCA_WCN3991) {
 		event_type = 0;
 		rlen = sizeof(*edl);
 		rtype = EDL_PATCH_TLV_REQ_CMD;
@@ -301,7 +301,7 @@ static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
 		err = -EIO;
 	}
 
-	if (soc_type == QCA_WCN3991)
+	if (soc_type >= QCA_WCN3991)
 		goto out;
 
 	tlv_resp = (struct tlv_seg_resp *)(edl->data);
@@ -442,6 +442,11 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 			    (soc_ver & 0x0000000f);
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/crbtfw%02x.tlv", rom_ver);
+	} else if (soc_type == QCA_QCA6390) {
+		rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
+			    (soc_ver & 0x0000000f);
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "qca/htbtfw%02x.tlv", rom_ver);
 	} else {
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/rampatch_%08x.bin", soc_ver);
@@ -464,6 +469,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	else if (qca_is_wcn399x(soc_type))
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/crnv%02x.bin", rom_ver);
+	else if (soc_type == QCA_QCA6390)
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "qca/htnv%02x.bin", rom_ver);
 	else
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/nvm_%08x.bin", soc_ver);
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index e16a4d650597..6e1e62dd4b95 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -125,8 +125,9 @@ enum qca_btsoc_type {
 	QCA_AR3002,
 	QCA_ROME,
 	QCA_WCN3990,
-	QCA_WCN3991,
 	QCA_WCN3998,
+	QCA_WCN3991,
+	QCA_QCA6390,
 };
 
 #if IS_ENABLED(CONFIG_BT_QCA)
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 67f4bc21e7c5..3a9afc905f24 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -130,12 +130,19 @@ static const struct id_table ic_id_table[] = {
 	  .cfg_name = "rtl_bt/rtl8821c_config" },
 
 	/* 8761A */
-	{ IC_MATCH_FL_LMPSUBV, RTL_ROM_LMP_8761A, 0x0,
+	{ IC_INFO(RTL_ROM_LMP_8761A, 0xa),
 	  .config_needed = false,
 	  .has_rom_version = true,
 	  .fw_name  = "rtl_bt/rtl8761a_fw.bin",
 	  .cfg_name = "rtl_bt/rtl8761a_config" },
 
+	/* 8761B */
+	{ IC_INFO(RTL_ROM_LMP_8761A, 0xb),
+	  .config_needed = false,
+	  .has_rom_version = true,
+	  .fw_name  = "rtl_bt/rtl8761b_fw.bin",
+	  .cfg_name = "rtl_bt/rtl8761b_config" },
+
 	/* 8822C with UART interface */
 	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV |
 			 IC_MATCH_FL_HCIBUS,
@@ -267,6 +274,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 		{ RTL_ROM_LMP_8723B, 9 },	/* 8723D */
 		{ RTL_ROM_LMP_8821A, 10 },	/* 8821C */
 		{ RTL_ROM_LMP_8822B, 13 },	/* 8822C */
+		{ RTL_ROM_LMP_8761A, 14 },	/* 8761B */
 	};
 
 	min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3;
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 3bdec42c9612..871162790a0e 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -492,6 +492,8 @@ struct btusb_data {
 	__u8 cmdreq;
 
 	unsigned int sco_num;
+	unsigned int air_mode;
+	bool usb_alt6_packet_flow;
 	int isoc_altsetting;
 	int suspend_count;
 
@@ -983,6 +985,42 @@ static void btusb_isoc_complete(struct urb *urb)
 	}
 }
 
+static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
+					       int mtu, struct btusb_data *data)
+{
+	int i, offset = 0;
+	unsigned int interval;
+
+	BT_DBG("len %d mtu %d", len, mtu);
+
+	/* For mSBC ALT 6 setting the host will send the packet at continuous
+	 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
+	 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
+	 * To maintain the rate we send 63bytes of usb packets alternatively for
+	 * 7ms and 8ms to maintain the rate as 7.5ms.
+	 */
+	if (data->usb_alt6_packet_flow) {
+		interval = 7;
+		data->usb_alt6_packet_flow = false;
+	} else {
+		interval = 6;
+		data->usb_alt6_packet_flow = true;
+	}
+
+	for (i = 0; i < interval; i++) {
+		urb->iso_frame_desc[i].offset = offset;
+		urb->iso_frame_desc[i].length = offset;
+	}
+
+	if (len && i < BTUSB_MAX_ISOC_FRAMES) {
+		urb->iso_frame_desc[i].offset = offset;
+		urb->iso_frame_desc[i].length = len;
+		i++;
+	}
+
+	urb->number_of_packets = i;
+}
+
 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 {
 	int i, offset = 0;
@@ -1386,9 +1424,13 @@ static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
 
 	urb->transfer_flags  = URB_ISO_ASAP;
 
-	__fill_isoc_descriptor(urb, skb->len,
-			       le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
-
+	if (data->isoc_altsetting == 6)
+		__fill_isoc_descriptor_msbc(urb, skb->len,
+					    le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
+					    data);
+	else
+		__fill_isoc_descriptor(urb, skb->len,
+				       le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 	skb->dev = (void *)hdev;
 
 	return urb;
@@ -1484,6 +1526,7 @@ static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 
 	if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
 		data->sco_num = hci_conn_num(hdev, SCO_LINK);
+		data->air_mode = evt;
 		schedule_work(&data->work);
 	}
 }
@@ -1531,11 +1574,70 @@ static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 	return 0;
 }
 
+static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
+{
+	struct btusb_data *data = hci_get_drvdata(hdev);
+	int err;
+
+	if (data->isoc_altsetting != new_alts) {
+		unsigned long flags;
+
+		clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+		usb_kill_anchored_urbs(&data->isoc_anchor);
+
+		/* When isochronous alternate setting needs to be
+		 * changed, because SCO connection has been added
+		 * or removed, a packet fragment may be left in the
+		 * reassembling state. This could lead to wrongly
+		 * assembled fragments.
+		 *
+		 * Clear outstanding fragment when selecting a new
+		 * alternate setting.
+		 */
+		spin_lock_irqsave(&data->rxlock, flags);
+		kfree_skb(data->sco_skb);
+		data->sco_skb = NULL;
+		spin_unlock_irqrestore(&data->rxlock, flags);
+
+		err = __set_isoc_interface(hdev, new_alts);
+		if (err < 0)
+			return err;
+	}
+
+	if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
+		if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
+			clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+		else
+			btusb_submit_isoc_urb(hdev, GFP_KERNEL);
+	}
+
+	return 0;
+}
+
+static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
+							int alt)
+{
+	struct usb_interface *intf = data->isoc;
+	int i;
+
+	BT_DBG("Looking for Alt no :%d", alt);
+
+	if (!intf)
+		return NULL;
+
+	for (i = 0; i < intf->num_altsetting; i++) {
+		if (intf->altsetting[i].desc.bAlternateSetting == alt)
+			return &intf->altsetting[i];
+	}
+
+	return NULL;
+}
+
 static void btusb_work(struct work_struct *work)
 {
 	struct btusb_data *data = container_of(work, struct btusb_data, work);
 	struct hci_dev *hdev = data->hdev;
-	int new_alts;
+	int new_alts = 0;
 	int err;
 
 	if (data->sco_num > 0) {
@@ -1550,44 +1652,27 @@ static void btusb_work(struct work_struct *work)
 			set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 		}
 
-		if (hdev->voice_setting & 0x0020) {
-			static const int alts[3] = { 2, 4, 5 };
+		if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
+			if (hdev->voice_setting & 0x0020) {
+				static const int alts[3] = { 2, 4, 5 };
 
-			new_alts = alts[data->sco_num - 1];
-		} else {
-			new_alts = data->sco_num;
-		}
-
-		if (data->isoc_altsetting != new_alts) {
-			unsigned long flags;
-
-			clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
-			usb_kill_anchored_urbs(&data->isoc_anchor);
-
-			/* When isochronous alternate setting needs to be
-			 * changed, because SCO connection has been added
-			 * or removed, a packet fragment may be left in the
-			 * reassembling state. This could lead to wrongly
-			 * assembled fragments.
-			 *
-			 * Clear outstanding fragment when selecting a new
-			 * alternate setting.
-			 */
-			spin_lock_irqsave(&data->rxlock, flags);
-			kfree_skb(data->sco_skb);
-			data->sco_skb = NULL;
-			spin_unlock_irqrestore(&data->rxlock, flags);
+				new_alts = alts[data->sco_num - 1];
+			} else {
+				new_alts = data->sco_num;
+			}
+		} else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
 
-			if (__set_isoc_interface(hdev, new_alts) < 0)
-				return;
-		}
+			data->usb_alt6_packet_flow = true;
 
-		if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
-			if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
-				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+			/* Check if Alt 6 is supported for Transparent audio */
+			if (btusb_find_altsetting(data, 6))
+				new_alts = 6;
 			else
-				btusb_submit_isoc_urb(hdev, GFP_KERNEL);
+				bt_dev_err(hdev, "Device does not support ALT setting 6");
 		}
+
+		if (btusb_switch_alt_setting(hdev, new_alts) < 0)
+			bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
 	} else {
 		clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 		usb_kill_anchored_urbs(&data->isoc_anchor);
@@ -2252,7 +2337,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 	if (ver.fw_variant == 0x23) {
 		clear_bit(BTUSB_BOOTLOADER, &data->flags);
 		btintel_check_bdaddr(hdev);
-		return 0;
+		goto finish;
 	}
 
 	/* If the device is not in bootloader mode, then the only possible
@@ -2452,6 +2537,23 @@ done:
 	 */
 	btintel_load_ddc_config(hdev, fwname);
 
+	/* Read the Intel version information after loading the FW  */
+	err = btintel_read_version(hdev, &ver);
+	if (err)
+		return err;
+
+	btintel_version_info(hdev, &ver);
+
+finish:
+	/* All Intel controllers that support the Microsoft vendor
+	 * extension are using 0xFC1E for VsMsftOpCode.
+	 */
+	switch (ver.hw_variant) {
+	case 0x12:	/* ThP */
+		hci_set_msft_opcode(hdev, 0xFC1E);
+		break;
+	}
+
 	/* Set the event mask for Intel specific vendor events. This enables
 	 * a few extra events that are useful during general operation. It
 	 * does not enable any debugging related events.
@@ -2461,13 +2563,6 @@ done:
 	 */
 	btintel_set_event_mask(hdev, false);
 
-	/* Read the Intel version information after loading the FW  */
-	err = btintel_read_version(hdev, &ver);
-	if (err)
-		return err;
-
-	btintel_version_info(hdev, &ver);
-
 	return 0;
 }
 
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index b236cb11c0dc..19e4587f366c 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -118,6 +118,7 @@ struct bcm_device {
 	u32			oper_speed;
 	int			irq;
 	bool			irq_active_low;
+	bool			irq_acquired;
 
 #ifdef CONFIG_PM
 	struct hci_uart		*hu;
@@ -333,6 +334,8 @@ static int bcm_request_irq(struct bcm_data *bcm)
 		goto unlock;
 	}
 
+	bdev->irq_acquired = true;
+
 	device_init_wakeup(bdev->dev, true);
 
 	pm_runtime_set_autosuspend_delay(bdev->dev,
@@ -514,7 +517,7 @@ static int bcm_close(struct hci_uart *hu)
 	}
 
 	if (bdev) {
-		if (IS_ENABLED(CONFIG_PM) && bdev->irq > 0) {
+		if (IS_ENABLED(CONFIG_PM) && bdev->irq_acquired) {
 			devm_free_irq(bdev->dev, bdev->irq, bdev);
 			device_init_wakeup(bdev->dev, false);
 			pm_runtime_disable(bdev->dev);
@@ -1153,7 +1156,8 @@ static int bcm_of_probe(struct bcm_device *bdev)
 	device_property_read_u8_array(bdev->dev, "brcm,bt-pcm-int-params",
 				      bdev->pcm_int_params, 5);
 	bdev->irq = of_irq_get_byname(bdev->dev->of_node, "host-wakeup");
-
+	bdev->irq_active_low = irq_get_trigger_type(bdev->irq)
+			     & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW);
 	return 0;
 }
 
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 439392b1c043..d0ac554584a4 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -26,6 +26,7 @@
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
+#include <linux/acpi.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/serdev.h>
@@ -1596,7 +1597,7 @@ static int qca_setup(struct hci_uart *hu)
 	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 
 	bt_dev_info(hdev, "setting up %s",
-		qca_is_wcn399x(soc_type) ? "wcn399x" : "ROME");
+		qca_is_wcn399x(soc_type) ? "wcn399x" : "ROME/QCA6390");
 
 retry:
 	ret = qca_power_on(hdev);
@@ -1665,10 +1666,10 @@ retry:
 	}
 
 	/* Setup bdaddr */
-	if (qca_is_wcn399x(soc_type))
-		hu->hdev->set_bdaddr = qca_set_bdaddr;
-	else
+	if (soc_type == QCA_ROME)
 		hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
+	else
+		hu->hdev->set_bdaddr = qca_set_bdaddr;
 
 	return ret;
 }
@@ -1721,6 +1722,11 @@ static const struct qca_vreg_data qca_soc_data_wcn3998 = {
 	.num_vregs = 4,
 };
 
+static const struct qca_vreg_data qca_soc_data_qca6390 = {
+	.soc_type = QCA_QCA6390,
+	.num_vregs = 0,
+};
+
 static void qca_power_shutdown(struct hci_uart *hu)
 {
 	struct qca_serdev *qcadev;
@@ -1764,7 +1770,7 @@ static int qca_power_off(struct hci_dev *hdev)
 	enum qca_btsoc_type soc_type = qca_soc_type(hu);
 
 	/* Stop sending shutdown command if soc crashes. */
-	if (qca_is_wcn399x(soc_type)
+	if (soc_type != QCA_ROME
 		&& qca->memdump_state == QCA_MEMDUMP_IDLE) {
 		qca_send_pre_shutdown_cmd(hdev);
 		usleep_range(8000, 10000);
@@ -1900,7 +1906,11 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 			return err;
 		}
 	} else {
-		qcadev->btsoc_type = QCA_ROME;
+		if (data)
+			qcadev->btsoc_type = data->soc_type;
+		else
+			qcadev->btsoc_type = QCA_ROME;
+
 		qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
 					       GPIOD_OUT_LOW);
 		if (!qcadev->bt_en) {
@@ -2044,21 +2054,37 @@ static int __maybe_unused qca_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(qca_pm_ops, qca_suspend, qca_resume);
 
+#ifdef CONFIG_OF
 static const struct of_device_id qca_bluetooth_of_match[] = {
 	{ .compatible = "qcom,qca6174-bt" },
+	{ .compatible = "qcom,qca6390-bt", .data = &qca_soc_data_qca6390},
 	{ .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},
 	{ .compatible = "qcom,wcn3991-bt", .data = &qca_soc_data_wcn3991},
 	{ .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);
+#endif
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id qca_bluetooth_acpi_match[] = {
+	{ "QCOM6390", (kernel_ulong_t)&qca_soc_data_qca6390 },
+	{ "DLA16390", (kernel_ulong_t)&qca_soc_data_qca6390 },
+	{ "DLB16390", (kernel_ulong_t)&qca_soc_data_qca6390 },
+	{ "DLB26390", (kernel_ulong_t)&qca_soc_data_qca6390 },
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, qca_bluetooth_acpi_match);
+#endif
+
 
 static struct serdev_device_driver qca_serdev_driver = {
 	.probe = qca_serdev_probe,
 	.remove = qca_serdev_remove,
 	.driver = {
 		.name = "hci_uart_qca",
-		.of_match_table = qca_bluetooth_of_match,
+		.of_match_table = of_match_ptr(qca_bluetooth_of_match),
+		.acpi_match_table = ACPI_PTR(qca_bluetooth_acpi_match),
 		.pm = &qca_pm_ops,
 	},
 };