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path: root/drivers/bluetooth/btmtk.c
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Diffstat (limited to 'drivers/bluetooth/btmtk.c')
-rw-r--r--drivers/bluetooth/btmtk.c115
1 files changed, 83 insertions, 32 deletions
diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
index fa7533578f85..6fb6ca274808 100644
--- a/drivers/bluetooth/btmtk.c
+++ b/drivers/bluetooth/btmtk.c
@@ -112,7 +112,11 @@ static void btmtk_coredump_notify(struct hci_dev *hdev, int state)
void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id, u32 fw_ver,
u32 fw_flavor)
{
- if (dev_id == 0x7925)
+ if (dev_id == 0x6639)
+ snprintf(buf, size,
+ "mediatek/mt7927/BT_RAM_CODE_MT%04x_2_%x_hdr.bin",
+ dev_id & 0xffff, (fw_ver & 0xff) + 1);
+ else if (dev_id == 0x7925)
snprintf(buf, size,
"mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
dev_id & 0xffff, dev_id & 0xffff, (fw_ver & 0xff) + 1);
@@ -128,7 +132,8 @@ void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id, u32 fw_ver,
EXPORT_SYMBOL_GPL(btmtk_fw_get_filename);
int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
- wmt_cmd_sync_func_t wmt_cmd_sync)
+ wmt_cmd_sync_func_t wmt_cmd_sync,
+ u32 dev_id)
{
struct btmtk_hci_wmt_params wmt_params;
struct btmtk_patch_header *hdr;
@@ -166,6 +171,14 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
section_offset = le32_to_cpu(sectionmap->secoffset);
dl_size = le32_to_cpu(sectionmap->bin_info_spec.dlsize);
+ /* MT6639: only download sections where dlmode byte0 == 0x01,
+ * matching the Windows driver behavior which skips WiFi/other
+ * sections that would cause the chip to hang.
+ */
+ if (dev_id == 0x6639 && dl_size > 0 &&
+ (le32_to_cpu(sectionmap->bin_info_spec.dlmodecrctype) & 0xff) != 0x01)
+ continue;
+
if (dl_size > 0) {
retry = 20;
while (retry > 0) {
@@ -205,9 +218,14 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
}
}
+ /* If retry exhausted goto err_release_fw */
+ if (retry == 0) {
+ err = -EIO;
+ goto err_release_fw;
+ }
+
fw_ptr += section_offset;
wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
- wmt_params.status = NULL;
while (dl_size > 0) {
dlen = min_t(int, 250, dl_size);
@@ -225,7 +243,14 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
wmt_params.data = fw_ptr;
err = wmt_cmd_sync(hdev, &wmt_params);
- if (err < 0) {
+ /* Status BTMTK_WMT_PATCH_PROGRESS indicates firmware is
+ * in process of being downloaded, which is not expected to
+ * occur here.
+ */
+ if (status == BTMTK_WMT_PATCH_PROGRESS) {
+ err = -EIO;
+ goto err_release_fw;
+ } else if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
err);
goto err_release_fw;
@@ -442,6 +467,22 @@ int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb)
EXPORT_SYMBOL_GPL(btmtk_process_coredump);
#if IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK)
+/* Known MT6639 (MT7927) Bluetooth USB devices.
+ * Used to scope the zero-CHIPID workaround to real MT6639 hardware,
+ * since some boards return 0x0000 from the MMIO chip ID register.
+ */
+static const struct {
+ u16 vendor;
+ u16 product;
+} btmtk_mt6639_devs[] = {
+ { 0x0489, 0xe13a }, /* ASUS ROG Crosshair X870E Hero */
+ { 0x0489, 0xe0fa }, /* Lenovo Legion Pro 7 16ARX9 */
+ { 0x0489, 0xe10f }, /* Gigabyte Z790 AORUS MASTER X */
+ { 0x0489, 0xe110 }, /* MSI X870E Ace Max */
+ { 0x0489, 0xe116 }, /* TP-Link Archer TBE550E */
+ { 0x13d3, 0x3588 }, /* ASUS ROG STRIX X870E-E */
+};
+
static void btmtk_usb_wmt_recv(struct urb *urb)
{
struct hci_dev *hdev = urb->context;
@@ -840,7 +881,7 @@ int btmtk_usb_subsys_reset(struct hci_dev *hdev, u32 dev_id)
if (err < 0)
return err;
msleep(100);
- } else if (dev_id == 0x7925) {
+ } else if (dev_id == 0x7925 || dev_id == 0x6639) {
err = btmtk_usb_uhw_reg_read(hdev, MTK_BT_RESET_REG_CONNV3, &val);
if (err < 0)
return err;
@@ -926,7 +967,7 @@ int btmtk_usb_subsys_reset(struct hci_dev *hdev, u32 dev_id)
}
err = btmtk_usb_id_get(hdev, 0x70010200, &val);
- if (err < 0 || !val)
+ if (err < 0 || (!val && dev_id != 0x6639))
bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
return err;
@@ -983,40 +1024,22 @@ static int __set_mtk_intr_interface(struct hci_dev *hdev)
{
struct btmtk_data *btmtk_data = hci_get_priv(hdev);
struct usb_interface *intf = btmtk_data->isopkt_intf;
- int i, err;
+ int err;
if (!btmtk_data->isopkt_intf)
return -ENODEV;
- err = usb_set_interface(btmtk_data->udev, MTK_ISO_IFNUM, 1);
+ err = usb_set_interface(btmtk_data->udev, MTK_ISO_IFNUM,
+ (intf->num_altsetting > 1) ? 1 : 0);
if (err < 0) {
bt_dev_err(hdev, "setting interface failed (%d)", -err);
return err;
}
- btmtk_data->isopkt_tx_ep = NULL;
- btmtk_data->isopkt_rx_ep = NULL;
-
- for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
- struct usb_endpoint_descriptor *ep_desc;
-
- ep_desc = &intf->cur_altsetting->endpoint[i].desc;
-
- if (!btmtk_data->isopkt_tx_ep &&
- usb_endpoint_is_int_out(ep_desc)) {
- btmtk_data->isopkt_tx_ep = ep_desc;
- continue;
- }
-
- if (!btmtk_data->isopkt_rx_ep &&
- usb_endpoint_is_int_in(ep_desc)) {
- btmtk_data->isopkt_rx_ep = ep_desc;
- continue;
- }
- }
-
- if (!btmtk_data->isopkt_tx_ep ||
- !btmtk_data->isopkt_rx_ep) {
+ err = usb_find_common_endpoints(intf->cur_altsetting, NULL, NULL,
+ &btmtk_data->isopkt_rx_ep,
+ &btmtk_data->isopkt_tx_ep);
+ if (err) {
bt_dev_err(hdev, "invalid interrupt descriptors");
return -ENODEV;
}
@@ -1310,6 +1333,24 @@ int btmtk_usb_setup(struct hci_dev *hdev)
fw_flavor = (fw_flavor & 0x00000080) >> 7;
}
+ if (!dev_id) {
+ u16 vid = le16_to_cpu(btmtk_data->udev->descriptor.idVendor);
+ u16 pid = le16_to_cpu(btmtk_data->udev->descriptor.idProduct);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(btmtk_mt6639_devs); i++) {
+ if (vid == btmtk_mt6639_devs[i].vendor &&
+ pid == btmtk_mt6639_devs[i].product) {
+ dev_id = 0x6639;
+ break;
+ }
+ }
+
+ if (dev_id)
+ bt_dev_info(hdev, "MT6639: CHIPID=0x0000 with VID=%04x PID=%04x, using 0x6639",
+ vid, pid);
+ }
+
btmtk_data->dev_id = dev_id;
err = btmtk_register_coredump(hdev, btmtk_data->drv_name, fw_version);
@@ -1326,12 +1367,18 @@ int btmtk_usb_setup(struct hci_dev *hdev)
case 0x7922:
case 0x7925:
case 0x7961:
+ case 0x7902:
+ case 0x6639:
btmtk_fw_get_filename(fw_bin_name, sizeof(fw_bin_name), dev_id,
fw_version, fw_flavor);
err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
- btmtk_usb_hci_wmt_sync);
+ btmtk_usb_hci_wmt_sync,
+ dev_id);
if (err < 0) {
+ /* retry once if setup firmware error */
+ if (!test_and_set_bit(BTMTK_FIRMWARE_DL_RETRY, &btmtk_data->flags))
+ btmtk_reset_sync(hdev);
bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
return err;
}
@@ -1359,6 +1406,9 @@ int btmtk_usb_setup(struct hci_dev *hdev)
hci_set_msft_opcode(hdev, 0xFD30);
hci_set_aosp_capable(hdev);
+ /* Clear BTMTK_FIRMWARE_DL_RETRY if setup successfully */
+ test_and_clear_bit(BTMTK_FIRMWARE_DL_RETRY, &btmtk_data->flags);
+
/* Set up ISO interface after protocol enabled */
if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
if (!btmtk_usb_isointf_init(hdev))
@@ -1497,3 +1547,4 @@ MODULE_FIRMWARE(FIRMWARE_MT7668);
MODULE_FIRMWARE(FIRMWARE_MT7922);
MODULE_FIRMWARE(FIRMWARE_MT7961);
MODULE_FIRMWARE(FIRMWARE_MT7925);
+MODULE_FIRMWARE(FIRMWARE_MT7927);
Copyright © 2025 - 2026 Wayne Cole. WTFPL. Attribution appreciated. No warranty. Not liable for bodily damages.