diff --git a/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
new file mode 100644
index 0000000000000..14ceb2a5b4e81
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
@@ -0,0 +1,35 @@
+MediaTek SoC built-in Bluetooth Devices
+==================================
+
+This device is a serial attached device to BTIF device and thus it must be a
+child node of the serial node with BTIF. The dt-bindings details for BTIF
+device can be known via Documentation/devicetree/bindings/serial/8250.txt.
+
+Required properties:
+
+- compatible: Must be
+ "mediatek,mt7622-bluetooth": for MT7622 SoC
+- clocks: Should be the clock specifiers corresponding to the entry in
+ clock-names property.
+- clock-names: Should contain "ref" entries.
+- power-domains: Phandle to the power domain that the device is part of
+
+Example:
+
+ btif: serial@1100c000 {
+ compatible = "mediatek,mt7622-btif",
+ "mediatek,mtk-btif";
+ reg = <0 0x1100c000 0 0x1000>;
+ interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_BTIF_PD>;
+ clock-names = "main";
+ reg-shift = <2>;
+ reg-io-width = <4>;
+
+ bluetooth {
+ compatible = "mediatek,mt7622-bluetooth";
+ power-domains = <&scpsys MT7622_POWER_DOMAIN_WB>;
+ clocks = <&clk25m>;
+ clock-names = "ref";
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 82f277462349c..9777a1dd6ff64 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8988,6 +8988,14 @@ F: include/uapi/linux/meye.h
F: include/uapi/linux/ivtv*
F: include/uapi/linux/uvcvideo.h
+MEDIATEK BLUETOOTH DRIVER
+M: Sean Wang <sean.wang@mediatek.com>
+L: linux-bluetooth@vger.kernel.org
+L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
+F: drivers/bluetooth/btmtkuart.c
+
MEDIATEK CIR DRIVER
M: Sean Wang <sean.wang@mediatek.com>
S: Maintained
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 5f953ca8ac5bb..2df11cc08a460 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -195,6 +195,19 @@ config BT_HCIUART_BCM
Say Y here to compile support for Broadcom protocol.
+config BT_HCIUART_RTL
+ bool "Realtek protocol support"
+ depends on BT_HCIUART
+ depends on BT_HCIUART_SERDEV
+ depends on GPIOLIB
+ select BT_HCIUART_3WIRE
+ select BT_RTL
+ help
+ The Realtek protocol support enables Bluetooth HCI over 3-Wire
+ serial port internface for Realtek Bluetooth controllers.
+
+ Say Y here to compile support for Realtek protocol.
+
config BT_HCIUART_QCA
bool "Qualcomm Atheros protocol support"
depends on BT_HCIUART
@@ -365,6 +378,17 @@ config BT_WILINK
Say Y here to compile support for Texas Instrument's WiLink7 driver
into the kernel or say M to compile it as module (btwilink).
+config BT_MTKUART
+ tristate "MediaTek HCI UART driver"
+ depends on SERIAL_DEV_BUS
+ help
+ MediaTek Bluetooth HCI UART driver.
+ This driver is required if you want to use MediaTek Bluetooth
+ with serial interface.
+
+ Say Y here to compile support for MediaTek Bluetooth UART devices
+ into the kernel or say M to compile it as module (btmtkuart).
+
config BT_QCOMSMD
tristate "Qualcomm SMD based HCI support"
depends on RPMSG || (COMPILE_TEST && RPMSG=n)
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
index ec16c55eb6e9b..b7e393cfc1e31 100644
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_BT_ATH3K) += ath3k.o
obj-$(CONFIG_BT_MRVL) += btmrvl.o
obj-$(CONFIG_BT_MRVL_SDIO) += btmrvl_sdio.o
obj-$(CONFIG_BT_WILINK) += btwilink.o
+obj-$(CONFIG_BT_MTKUART) += btmtkuart.o
obj-$(CONFIG_BT_QCOMSMD) += btqcomsmd.o
obj-$(CONFIG_BT_BCM) += btbcm.o
obj-$(CONFIG_BT_RTL) += btrtl.o
diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
new file mode 100644
index 0000000000000..e0571fe04d007
--- /dev/null
+++ b/drivers/bluetooth/btmtkuart.c
@@ -0,0 +1,629 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 MediaTek Inc.
+
+/*
+ * Bluetooth support for MediaTek serial devices
+ *
+ * Author: Sean Wang <sean.wang@mediatek.com>
+ *
+ */
+
+#include <asm/unaligned.h>
+#include <linux/atomic.h>
+#include <linux/clk.h>
+#include <linux/firmware.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/pm_runtime.h>
+#include <linux/serdev.h>
+#include <linux/skbuff.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "h4_recv.h"
+
+#define VERSION "0.1"
+
+#define FIRMWARE_MT7622 "mediatek/mt7622pr2h.bin"
+
+#define MTK_STP_TLR_SIZE 2
+
+#define BTMTKUART_TX_STATE_ACTIVE 1
+#define BTMTKUART_TX_STATE_WAKEUP 2
+#define BTMTKUART_TX_WAIT_VND_EVT 3
+
+enum {
+ MTK_WMT_PATCH_DWNLD = 0x1,
+ MTK_WMT_FUNC_CTRL = 0x6,
+ MTK_WMT_RST = 0x7
+};
+
+struct mtk_stp_hdr {
+ u8 prefix;
+ __be16 dlen;
+ u8 cs;
+} __packed;
+
+struct mtk_wmt_hdr {
+ u8 dir;
+ u8 op;
+ __le16 dlen;
+ u8 flag;
+} __packed;
+
+struct mtk_hci_wmt_cmd {
+ struct mtk_wmt_hdr hdr;
+ u8 data[256];
+} __packed;
+
+struct btmtkuart_dev {
+ struct hci_dev *hdev;
+ struct serdev_device *serdev;
+ struct clk *clk;
+
+ struct work_struct tx_work;
+ unsigned long tx_state;
+ struct sk_buff_head txq;
+
+ struct sk_buff *rx_skb;
+
+ u8 stp_pad[6];
+ u8 stp_cursor;
+ u16 stp_dlen;
+};
+
+static int mtk_hci_wmt_sync(struct hci_dev *hdev, u8 op, u8 flag, u16 plen,
+ const void *param)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct mtk_hci_wmt_cmd wc;
+ struct mtk_wmt_hdr *hdr;
+ u32 hlen;
+ int err;
+
+ hlen = sizeof(*hdr) + plen;
+ if (hlen > 255)
+ return -EINVAL;
+
+ hdr = (struct mtk_wmt_hdr *)&wc;
+ hdr->dir = 1;
+ hdr->op = op;
+ hdr->dlen = cpu_to_le16(plen + 1);
+ hdr->flag = flag;
+ memcpy(wc.data, param, plen);
+
+ set_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
+
+ err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
+ if (err < 0) {
+ clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
+ return err;
+ }
+
+ /* The vendor specific WMT commands are all answered by a vendor
+ * specific event and will not have the Command Status or Command
+ * Complete as with usual HCI command flow control.
+ *
+ * After sending the command, wait for BTMTKUART_TX_WAIT_VND_EVT
+ * state to be cleared. The driver speicfic event receive routine
+ * will clear that state and with that indicate completion of the
+ * WMT command.
+ */
+ err = wait_on_bit_timeout(&bdev->tx_state, BTMTKUART_TX_WAIT_VND_EVT,
+ TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
+ if (err == -EINTR) {
+ bt_dev_err(hdev, "Execution of wmt command interrupted");
+ return err;
+ }
+
+ if (err) {
+ bt_dev_err(hdev, "Execution of wmt command timed out");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int mtk_setup_fw(struct hci_dev *hdev)
+{
+ const struct firmware *fw;
+ const u8 *fw_ptr;
+ size_t fw_size;
+ int err, dlen;
+ u8 flag;
+
+ err = request_firmware(&fw, FIRMWARE_MT7622, &hdev->dev);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
+ return err;
+ }
+
+ fw_ptr = fw->data;
+ fw_size = fw->size;
+
+ /* The size of patch header is 30 bytes, should be skip */
+ if (fw_size < 30)
+ return -EINVAL;
+
+ fw_size -= 30;
+ fw_ptr += 30;
+ flag = 1;
+
+ while (fw_size > 0) {
+ dlen = min_t(int, 250, fw_size);
+
+ /* Tell device the position in sequence */
+ if (fw_size - dlen <= 0)
+ flag = 3;
+ else if (fw_size < fw->size - 30)
+ flag = 2;
+
+ err = mtk_hci_wmt_sync(hdev, MTK_WMT_PATCH_DWNLD, flag, dlen,
+ fw_ptr);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
+ err);
+ break;
+ }
+
+ fw_size -= dlen;
+ fw_ptr += dlen;
+ }
+
+ release_firmware(fw);
+
+ return err;
+}
+
+static int btmtkuart_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct hci_event_hdr *hdr = (void *)skb->data;
+ int err;
+
+ /* Fix up the vendor event id with 0xff for vendor specific instead
+ * of 0xe4 so that event send via monitoring socket can be parsed
+ * properly.
+ */
+ if (hdr->evt == 0xe4)
+ hdr->evt = HCI_EV_VENDOR;
+
+ err = hci_recv_frame(hdev, skb);
+
+ if (hdr->evt == HCI_EV_VENDOR) {
+ if (test_and_clear_bit(BTMTKUART_TX_WAIT_VND_EVT,
+ &bdev->tx_state)) {
+ /* Barrier to sync with other CPUs */
+ smp_mb__after_atomic();
+ wake_up_bit(&bdev->tx_state, BTMTKUART_TX_WAIT_VND_EVT);
+ }
+ }
+
+ return err;
+}
+
+static const struct h4_recv_pkt mtk_recv_pkts[] = {
+ { H4_RECV_ACL, .recv = hci_recv_frame },
+ { H4_RECV_SCO, .recv = hci_recv_frame },
+ { H4_RECV_EVENT, .recv = btmtkuart_recv_event },
+};
+
+static void btmtkuart_tx_work(struct work_struct *work)
+{
+ struct btmtkuart_dev *bdev = container_of(work, struct btmtkuart_dev,
+ tx_work);
+ struct serdev_device *serdev = bdev->serdev;
+ struct hci_dev *hdev = bdev->hdev;
+
+ while (1) {
+ clear_bit(BTMTKUART_TX_STATE_WAKEUP, &bdev->tx_state);
+
+ while (1) {
+ struct sk_buff *skb = skb_dequeue(&bdev->txq);
+ int len;
+
+ if (!skb)
+ break;
+
+ len = serdev_device_write_buf(serdev, skb->data,
+ skb->len);
+ hdev->stat.byte_tx += len;
+
+ skb_pull(skb, len);
+ if (skb->len > 0) {
+ skb_queue_head(&bdev->txq, skb);
+ break;
+ }
+
+ switch (hci_skb_pkt_type(skb)) {
+ case HCI_COMMAND_PKT:
+ hdev->stat.cmd_tx++;
+ break;
+ case HCI_ACLDATA_PKT:
+ hdev->stat.acl_tx++;
+ break;
+ case HCI_SCODATA_PKT:
+ hdev->stat.sco_tx++;
+ break;
+ }
+
+ kfree_skb(skb);
+ }
+
+ if (!test_bit(BTMTKUART_TX_STATE_WAKEUP, &bdev->tx_state))
+ break;
+ }
+
+ clear_bit(BTMTKUART_TX_STATE_ACTIVE, &bdev->tx_state);
+}
+
+static void btmtkuart_tx_wakeup(struct btmtkuart_dev *bdev)
+{
+ if (test_and_set_bit(BTMTKUART_TX_STATE_ACTIVE, &bdev->tx_state))
+ set_bit(BTMTKUART_TX_STATE_WAKEUP, &bdev->tx_state);
+
+ schedule_work(&bdev->tx_work);
+}
+
+static const unsigned char *
+mtk_stp_split(struct btmtkuart_dev *bdev, const unsigned char *data, int count,
+ int *sz_h4)
+{
+ struct mtk_stp_hdr *shdr;
+
+ /* The cursor is reset when all the data of STP is consumed out */
+ if (!bdev->stp_dlen && bdev->stp_cursor >= 6)
+ bdev->stp_cursor = 0;
+
+ /* Filling pad until all STP info is obtained */
+ while (bdev->stp_cursor < 6 && count > 0) {
+ bdev->stp_pad[bdev->stp_cursor] = *data;
+ bdev->stp_cursor++;
+ data++;
+ count--;
+ }
+
+ /* Retrieve STP info and have a sanity check */
+ if (!bdev->stp_dlen && bdev->stp_cursor >= 6) {
+ shdr = (struct mtk_stp_hdr *)&bdev->stp_pad[2];
+ bdev->stp_dlen = be16_to_cpu(shdr->dlen) & 0x0fff;
+
+ /* Resync STP when unexpected data is being read */
+ if (shdr->prefix != 0x80 || bdev->stp_dlen > 2048) {
+ bt_dev_err(bdev->hdev, "stp format unexpect (%d, %d)",
+ shdr->prefix, bdev->stp_dlen);
+ bdev->stp_cursor = 2;
+ bdev->stp_dlen = 0;
+ }
+ }
+
+ /* Directly quit when there's no data found for H4 can process */
+ if (count <= 0)
+ return NULL;
+
+ /* Tranlate to how much the size of data H4 can handle so far */
+ *sz_h4 = min_t(int, count, bdev->stp_dlen);
+
+ /* Update the remaining size of STP packet */
+ bdev->stp_dlen -= *sz_h4;
+
+ /* Data points to STP payload which can be handled by H4 */
+ return data;
+}
+
+static int btmtkuart_recv(struct hci_dev *hdev, const u8 *data, size_t count)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ const unsigned char *p_left = data, *p_h4;
+ int sz_left = count, sz_h4, adv;
+ int err;
+
+ while (sz_left > 0) {
+ /* The serial data received from MT7622 BT controller is
+ * at all time padded around with the STP header and tailer.
+ *
+ * A full STP packet is looking like
+ * -----------------------------------
+ * | STP header | H:4 | STP tailer |
+ * -----------------------------------
+ * but it doesn't guarantee to contain a full H:4 packet which
+ * means that it's possible for multiple STP packets forms a
+ * full H:4 packet that means extra STP header + length doesn't
+ * indicate a full H:4 frame, things can fragment. Whose length
+ * recorded in STP header just shows up the most length the
+ * H:4 engine can handle currently.
+ */
+
+ p_h4 = mtk_stp_split(bdev, p_left, sz_left, &sz_h4);
+ if (!p_h4)
+ break;
+
+ adv = p_h4 - p_left;
+ sz_left -= adv;
+ p_left += adv;
+
+ bdev->rx_skb = h4_recv_buf(bdev->hdev, bdev->rx_skb, p_h4,
+ sz_h4, mtk_recv_pkts,
+ sizeof(mtk_recv_pkts));
+ if (IS_ERR(bdev->rx_skb)) {
+ err = PTR_ERR(bdev->rx_skb);
+ bt_dev_err(bdev->hdev,
+ "Frame reassembly failed (%d)", err);
+ bdev->rx_skb = NULL;
+ return err;
+ }
+
+ sz_left -= sz_h4;
+ p_left += sz_h4;
+ }
+
+ return 0;
+}
+
+static int btmtkuart_receive_buf(struct serdev_device *serdev, const u8 *data,
+ size_t count)
+{
+ struct btmtkuart_dev *bdev = serdev_device_get_drvdata(serdev);
+ int err;
+
+ err = btmtkuart_recv(bdev->hdev, data, count);
+ if (err < 0)
+ return err;
+
+ bdev->hdev->stat.byte_rx += count;
+
+ return count;
+}
+
+static void btmtkuart_write_wakeup(struct serdev_device *serdev)
+{
+ struct btmtkuart_dev *bdev = serdev_device_get_drvdata(serdev);
+
+ btmtkuart_tx_wakeup(bdev);
+}
+
+static const struct serdev_device_ops btmtkuart_client_ops = {
+ .receive_buf = btmtkuart_receive_buf,
+ .write_wakeup = btmtkuart_write_wakeup,
+};
+
+static int btmtkuart_open(struct hci_dev *hdev)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct device *dev;
+ int err;
+
+ err = serdev_device_open(bdev->serdev);
+ if (err) {
+ bt_dev_err(hdev, "Unable to open UART device %s",
+ dev_name(&bdev->serdev->dev));
+ goto err_open;
+ }
+
+ bdev->stp_cursor = 2;
+ bdev->stp_dlen = 0;
+
+ dev = &bdev->serdev->dev;
+
+ /* Enable the power domain and clock the device requires */
+ pm_runtime_enable(dev);
+ err = pm_runtime_get_sync(dev);
+ if (err < 0) {
+ pm_runtime_put_noidle(dev);
+ goto err_disable_rpm;
+ }
+
+ err = clk_prepare_enable(bdev->clk);
+ if (err < 0)
+ goto err_put_rpm;
+
+ return 0;
+
+err_put_rpm:
+ pm_runtime_put_sync(dev);
+err_disable_rpm:
+ pm_runtime_disable(dev);
+err_open:
+ return err;
+}
+
+static int btmtkuart_close(struct hci_dev *hdev)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct device *dev = &bdev->serdev->dev;
+
+ /* Shutdown the clock and power domain the device requires */
+ clk_disable_unprepare(bdev->clk);
+ pm_runtime_put_sync(dev);
+ pm_runtime_disable(dev);
+
+ serdev_device_close(bdev->serdev);
+
+ return 0;
+}
+
+static int btmtkuart_flush(struct hci_dev *hdev)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+
+ /* Flush any pending characters */
+ serdev_device_write_flush(bdev->serdev);
+ skb_queue_purge(&bdev->txq);
+
+ cancel_work_sync(&bdev->tx_work);
+
+ kfree_skb(bdev->rx_skb);
+ bdev->rx_skb = NULL;
+
+ bdev->stp_cursor = 2;
+ bdev->stp_dlen = 0;
+
+ return 0;
+}
+
+static int btmtkuart_setup(struct hci_dev *hdev)
+{
+ u8 param = 0x1;
+ int err = 0;
+
+ /* Setup a firmware which the device definitely requires */
+ err = mtk_setup_fw(hdev);
+ if (err < 0)
+ return err;
+
+ /* Activate function the firmware providing to */
+ err = mtk_hci_wmt_sync(hdev, MTK_WMT_RST, 0x4, 0, 0);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
+ return err;
+ }
+
+ /* Enable Bluetooth protocol */
+ err = mtk_hci_wmt_sync(hdev, MTK_WMT_FUNC_CTRL, 0x0, sizeof(param),
+ ¶m);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static int btmtkuart_shutdown(struct hci_dev *hdev)
+{
+ u8 param = 0x0;
+ int err;
+
+ /* Disable the device */
+ err = mtk_hci_wmt_sync(hdev, MTK_WMT_FUNC_CTRL, 0x0, sizeof(param),
+ ¶m);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static int btmtkuart_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct mtk_stp_hdr *shdr;
+ int err, dlen, type = 0;
+
+ /* Prepend skb with frame type */
+ memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1);
+
+ /* Make sure that there is enough rooms for STP header and trailer */
+ if (unlikely(skb_headroom(skb) < sizeof(*shdr)) ||
+ (skb_tailroom(skb) < MTK_STP_TLR_SIZE)) {
+ err = pskb_expand_head(skb, sizeof(*shdr), MTK_STP_TLR_SIZE,
+ GFP_ATOMIC);
+ if (err < 0)
+ return err;
+ }
+
+ /* Add the STP header */
+ dlen = skb->len;
+ shdr = skb_push(skb, sizeof(*shdr));
+ shdr->prefix = 0x80;
+ shdr->dlen = cpu_to_be16((dlen & 0x0fff) | (type << 12));
+ shdr->cs = 0; /* MT7622 doesn't care about checksum value */
+
+ /* Add the STP trailer */
+ skb_put_zero(skb, MTK_STP_TLR_SIZE);
+
+ skb_queue_tail(&bdev->txq, skb);
+
+ btmtkuart_tx_wakeup(bdev);
+ return 0;
+}
+
+static int btmtkuart_probe(struct serdev_device *serdev)
+{
+ struct btmtkuart_dev *bdev;
+ struct hci_dev *hdev;
+
+ bdev = devm_kzalloc(&serdev->dev, sizeof(*bdev), GFP_KERNEL);
+ if (!bdev)
+ return -ENOMEM;
+
+ bdev->clk = devm_clk_get(&serdev->dev, "ref");
+ if (IS_ERR(bdev->clk))
+ return PTR_ERR(bdev->clk);
+
+ bdev->serdev = serdev;
+ serdev_device_set_drvdata(serdev, bdev);
+
+ serdev_device_set_client_ops(serdev, &btmtkuart_client_ops);
+
+ INIT_WORK(&bdev->tx_work, btmtkuart_tx_work);
+ skb_queue_head_init(&bdev->txq);
+
+ /* Initialize and register HCI device */
+ hdev = hci_alloc_dev();
+ if (!hdev) {
+ dev_err(&serdev->dev, "Can't allocate HCI device\n");
+ return -ENOMEM;
+ }
+
+ bdev->hdev = hdev;
+
+ hdev->bus = HCI_UART;
+ hci_set_drvdata(hdev, bdev);
+
+ hdev->open = btmtkuart_open;
+ hdev->close = btmtkuart_close;
+ hdev->flush = btmtkuart_flush;
+ hdev->setup = btmtkuart_setup;
+ hdev->shutdown = btmtkuart_shutdown;
+ hdev->send = btmtkuart_send_frame;
+ SET_HCIDEV_DEV(hdev, &serdev->dev);
+
+ hdev->manufacturer = 70;
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+
+ if (hci_register_dev(hdev) < 0) {
+ dev_err(&serdev->dev, "Can't register HCI device\n");
+ hci_free_dev(hdev);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void btmtkuart_remove(struct serdev_device *serdev)
+{
+ struct btmtkuart_dev *bdev = serdev_device_get_drvdata(serdev);
+ struct hci_dev *hdev = bdev->hdev;
+
+ hci_unregister_dev(hdev);
+ hci_free_dev(hdev);
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id mtk_of_match_table[] = {
+ { .compatible = "mediatek,mt7622-bluetooth"},
+ { }
+};
+MODULE_DEVICE_TABLE(of, mtk_of_match_table);
+#endif
+
+static struct serdev_device_driver btmtkuart_driver = {
+ .probe = btmtkuart_probe,
+ .remove = btmtkuart_remove,
+ .driver = {
+ .name = "btmtkuart",
+ .of_match_table = of_match_ptr(mtk_of_match_table),
+ },
+};
+
+module_serdev_device_driver(btmtkuart_driver);
+
+MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
+MODULE_DESCRIPTION("MediaTek Bluetooth Serial driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(FIRMWARE_MT7622);
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index 488f5e7521dd0..ec9e03a6b7786 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -39,7 +39,7 @@ int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)
cmd = EDL_PATCH_VER_REQ_CMD;
skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
- &cmd, HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
+ &cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
bt_dev_err(hdev, "Reading QCA version information failed (%d)",
@@ -229,7 +229,7 @@ static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
cmd);
skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
- HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
+ HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
@@ -318,7 +318,7 @@ int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
cmd[2] = sizeof(bdaddr_t); /* size */
memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
- HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
+ HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index 63c0dcbc49141..8eede1197cd2e 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -841,6 +841,7 @@ static void h5_serdev_remove(struct serdev_device *serdev)
hci_uart_unregister_device(&h5->serdev_hu);
}
+#ifdef CONFIG_BT_HCIUART_RTL
static int h5_btrtl_setup(struct h5 *h5)
{
struct btrtl_device_info *btrtl_dev;
@@ -922,10 +923,13 @@ static struct h5_vnd rtl_vnd = {
.close = h5_btrtl_close,
.acpi_gpio_map = acpi_btrtl_gpios,
};
+#endif
#ifdef CONFIG_ACPI
static const struct acpi_device_id h5_acpi_match[] = {
+#ifdef CONFIG_BT_HCIUART_RTL
{ "OBDA8723", (kernel_ulong_t)&rtl_vnd },
+#endif
{ },
};
MODULE_DEVICE_TABLE(acpi, h5_acpi_match);
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 7f008097552ea..cdd9f1fe7cfa9 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -269,6 +269,7 @@ enum {
HCI_VENDOR_DIAG,
HCI_FORCE_BREDR_SMP,
HCI_FORCE_STATIC_ADDR,
+ HCI_LL_RPA_RESOLUTION,
__HCI_NUM_FLAGS,
};
@@ -1524,6 +1525,8 @@ struct hci_rp_le_read_resolv_list_size {
__u8 size;
} __packed;
+#define HCI_OP_LE_SET_ADDR_RESOLV_ENABLE 0x202d
+
#define HCI_OP_LE_READ_MAX_DATA_LEN 0x202f
struct hci_rp_le_read_max_data_len {
__u8 status;
@@ -2176,6 +2179,8 @@ struct hci_evt_le_ext_adv_set_term {
__u8 num_evts;
} __packed;
+#define HCI_EV_VENDOR 0xff
+
/* Internal events generated by Bluetooth stack */
#define HCI_EV_STACK_INTERNAL 0xfd
struct hci_ev_stack_internal {
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 754714c8d7528..f12555f23a49a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1132,7 +1132,6 @@ static void hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_cp_le_set_ext_adv_enable *cp;
- struct hci_cp_ext_adv_set *adv_set;
__u8 status = *((__u8 *) skb->data);
BT_DBG("%s status 0x%2.2x", hdev->name, status);
@@ -1144,8 +1143,6 @@ static void hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev,
if (!cp)
return;
- adv_set = (void *) cp->data;
-
hci_dev_lock(hdev);
if (cp->enable) {
@@ -1483,6 +1480,30 @@ static void hci_cc_le_read_resolv_list_size(struct hci_dev *hdev,
hdev->le_resolv_list_size = rp->size;
}
+static void hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ __u8 *sent, status = *((__u8 *) skb->data);
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+ if (status)
+ return;
+
+ sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
+ if (!sent)
+ return;
+
+ hci_dev_lock(hdev);
+
+ if (*sent)
+ hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
+ else
+ hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
+
+ hci_dev_unlock(hdev);
+}
+
static void hci_cc_le_read_max_data_len(struct hci_dev *hdev,
struct sk_buff *skb)
{
@@ -3266,6 +3287,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
hci_cc_le_read_resolv_list_size(hdev, skb);
break;
+ case HCI_OP_LE_SET_ADDR_RESOLV_ENABLE:
+ hci_cc_le_set_addr_resolution_enable(hdev, skb);
+ break;
+
case HCI_OP_LE_READ_MAX_DATA_LEN:
hci_cc_le_read_max_data_len(hdev, skb);
break;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 231602f7cb664..3bdc8f3ca259e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3356,7 +3356,6 @@ int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip)
static void set_default_phy_complete(struct hci_dev *hdev, u8 status,
u16 opcode, struct sk_buff *skb)
{
- struct mgmt_cp_set_phy_confguration *cp;
struct mgmt_pending_cmd *cmd;
BT_DBG("status 0x%02x", status);
@@ -3367,8 +3366,6 @@ static void set_default_phy_complete(struct hci_dev *hdev, u8 status,
if (!cmd)
goto unlock;
- cp = cmd->param;
-
if (status) {
mgmt_cmd_status(cmd->sk, hdev->id,
MGMT_OP_SET_PHY_CONFIGURATION,