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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/bluetooth/btusb.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/bluetooth/btusb.c')
-rw-r--r--drivers/bluetooth/btusb.c4359
1 files changed, 4359 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
new file mode 100644
index 000000000..954f7f3b5
--- /dev/null
+++ b/drivers/bluetooth/btusb.c
@@ -0,0 +1,4359 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *
+ * Generic Bluetooth USB driver
+ *
+ * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
+ */
+
+#include <linux/dmi.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/quirks.h>
+#include <linux/firmware.h>
+#include <linux/iopoll.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/suspend.h>
+#include <linux/gpio/consumer.h>
+#include <linux/debugfs.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "btintel.h"
+#include "btbcm.h"
+#include "btrtl.h"
+#include "btmtk.h"
+
+#define VERSION "0.8"
+
+static bool disable_scofix;
+static bool force_scofix;
+static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
+static bool reset = true;
+
+static struct usb_driver btusb_driver;
+
+#define BTUSB_IGNORE BIT(0)
+#define BTUSB_DIGIANSWER BIT(1)
+#define BTUSB_CSR BIT(2)
+#define BTUSB_SNIFFER BIT(3)
+#define BTUSB_BCM92035 BIT(4)
+#define BTUSB_BROKEN_ISOC BIT(5)
+#define BTUSB_WRONG_SCO_MTU BIT(6)
+#define BTUSB_ATH3012 BIT(7)
+#define BTUSB_INTEL_COMBINED BIT(8)
+#define BTUSB_INTEL_BOOT BIT(9)
+#define BTUSB_BCM_PATCHRAM BIT(10)
+#define BTUSB_MARVELL BIT(11)
+#define BTUSB_SWAVE BIT(12)
+#define BTUSB_AMP BIT(13)
+#define BTUSB_QCA_ROME BIT(14)
+#define BTUSB_BCM_APPLE BIT(15)
+#define BTUSB_REALTEK BIT(16)
+#define BTUSB_BCM2045 BIT(17)
+#define BTUSB_IFNUM_2 BIT(18)
+#define BTUSB_CW6622 BIT(19)
+#define BTUSB_MEDIATEK BIT(20)
+#define BTUSB_WIDEBAND_SPEECH BIT(21)
+#define BTUSB_VALID_LE_STATES BIT(22)
+#define BTUSB_QCA_WCN6855 BIT(23)
+#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
+#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
+#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
+#define BTUSB_ACTIONS_SEMI BIT(27)
+
+static const struct usb_device_id btusb_table[] = {
+ /* Generic Bluetooth USB device */
+ { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
+
+ /* Generic Bluetooth AMP device */
+ { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
+
+ /* Generic Bluetooth USB interface */
+ { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
+
+ /* Apple-specific (Broadcom) devices */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
+
+ /* MediaTek MT76x0E */
+ { USB_DEVICE(0x0e8d, 0x763f) },
+
+ /* Broadcom SoftSailing reporting vendor specific */
+ { USB_DEVICE(0x0a5c, 0x21e1) },
+
+ /* Apple MacBookPro 7,1 */
+ { USB_DEVICE(0x05ac, 0x8213) },
+
+ /* Apple iMac11,1 */
+ { USB_DEVICE(0x05ac, 0x8215) },
+
+ /* Apple MacBookPro6,2 */
+ { USB_DEVICE(0x05ac, 0x8218) },
+
+ /* Apple MacBookAir3,1, MacBookAir3,2 */
+ { USB_DEVICE(0x05ac, 0x821b) },
+
+ /* Apple MacBookAir4,1 */
+ { USB_DEVICE(0x05ac, 0x821f) },
+
+ /* Apple MacBookPro8,2 */
+ { USB_DEVICE(0x05ac, 0x821a) },
+
+ /* Apple MacMini5,1 */
+ { USB_DEVICE(0x05ac, 0x8281) },
+
+ /* AVM BlueFRITZ! USB v2.0 */
+ { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
+
+ /* Bluetooth Ultraport Module from IBM */
+ { USB_DEVICE(0x04bf, 0x030a) },
+
+ /* ALPS Modules with non-standard id */
+ { USB_DEVICE(0x044e, 0x3001) },
+ { USB_DEVICE(0x044e, 0x3002) },
+
+ /* Ericsson with non-standard id */
+ { USB_DEVICE(0x0bdb, 0x1002) },
+
+ /* Canyon CN-BTU1 with HID interfaces */
+ { USB_DEVICE(0x0c10, 0x0000) },
+
+ /* Broadcom BCM20702B0 (Dynex/Insignia) */
+ { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Broadcom BCM920703 (HTC Vive) */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Foxconn - Hon Hai */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Lite-On Technology - Broadcom based */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Broadcom devices with vendor specific id */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* ASUSTek Computer - Broadcom based */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Belkin F8065bf - Broadcom based */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* IMC Networks - Broadcom based */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Dell Computer - Broadcom based */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Toshiba Corp - Broadcom based */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
+ .driver_info = BTUSB_BCM_PATCHRAM },
+
+ /* Intel Bluetooth USB Bootloader (RAM module) */
+ { USB_DEVICE(0x8087, 0x0a5a),
+ .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
+
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, btusb_table);
+
+static const struct usb_device_id blacklist_table[] = {
+ /* CSR BlueCore devices */
+ { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
+
+ /* Broadcom BCM2033 without firmware */
+ { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
+
+ /* Broadcom BCM2045 devices */
+ { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
+
+ /* Atheros 3011 with sflash firmware */
+ { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
+ { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
+ { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
+ { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
+ { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
+ { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
+ { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
+
+ /* Atheros AR9285 Malbec with sflash firmware */
+ { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
+
+ /* Atheros 3012 with sflash firmware */
+ { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
+
+ /* Atheros AR5BBU12 with sflash firmware */
+ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
+
+ /* Atheros AR5BBU12 with sflash firmware */
+ { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
+
+ /* QCA ROME chipset */
+ { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* QCA WCN6855 chipset */
+ { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+
+ /* QCA WCN785x chipset */
+ { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+
+ /* Broadcom BCM2035 */
+ { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
+ { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
+ { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* Broadcom BCM2045 */
+ { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
+ { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* IBM/Lenovo ThinkPad with Broadcom chip */
+ { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
+ { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* HP laptop with Broadcom chip */
+ { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* Dell laptop with Broadcom chip */
+ { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* Dell Wireless 370 and 410 devices */
+ { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
+ { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* Belkin F8T012 and F8T013 devices */
+ { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
+ { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* Asus WL-BTD202 device */
+ { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* Kensington Bluetooth USB adapter */
+ { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
+
+ /* RTX Telecom based adapters with buggy SCO support */
+ { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
+ { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
+
+ /* CONWISE Technology based adapters with buggy SCO support */
+ { USB_DEVICE(0x0e5e, 0x6622),
+ .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
+
+ /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
+ { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
+
+ /* Digianswer devices */
+ { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
+ { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
+
+ /* CSR BlueCore Bluetooth Sniffer */
+ { USB_DEVICE(0x0a12, 0x0002),
+ .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
+
+ /* Frontline ComProbe Bluetooth Sniffer */
+ { USB_DEVICE(0x16d3, 0x0002),
+ .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
+
+ /* Marvell Bluetooth devices */
+ { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
+ { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
+ { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
+
+ /* Intel Bluetooth devices */
+ { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
+ { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
+ { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
+ { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
+ { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
+ { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
+ { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
+ { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
+ BTUSB_INTEL_NO_WBS_SUPPORT |
+ BTUSB_INTEL_BROKEN_INITIAL_NCMD |
+ BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
+ { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
+ BTUSB_INTEL_NO_WBS_SUPPORT |
+ BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
+ { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
+ { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
+ BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
+ { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
+
+ /* Other Intel Bluetooth devices */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
+ .driver_info = BTUSB_IGNORE },
+
+ /* Realtek 8821CE Bluetooth devices */
+ { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* Realtek 8822CE Bluetooth devices */
+ { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* Realtek 8852AE Bluetooth devices */
+ { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* Realtek 8852CE Bluetooth devices */
+ { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* Realtek 8852BE Bluetooth devices */
+ { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* Realtek Bluetooth devices */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
+ .driver_info = BTUSB_REALTEK },
+
+ /* MediaTek Bluetooth devices */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
+ .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+
+ /* Additional MediaTek MT7615E Bluetooth devices */
+ { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
+
+ /* Additional MediaTek MT7663 Bluetooth devices */
+ { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+
+ /* Additional MediaTek MT7668 Bluetooth devices */
+ { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+
+ /* Additional MediaTek MT7921 Bluetooth devices */
+ { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+
+ /* MediaTek MT7922A Bluetooth devices */
+ { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+ { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
+ BTUSB_WIDEBAND_SPEECH |
+ BTUSB_VALID_LE_STATES },
+
+ /* Additional Realtek 8723AE Bluetooth devices */
+ { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
+
+ /* Additional Realtek 8723BE Bluetooth devices */
+ { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
+
+ /* Additional Realtek 8723BU Bluetooth devices */
+ { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
+
+ /* Additional Realtek 8723DE Bluetooth devices */
+ { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
+
+ /* Additional Realtek 8761BUV Bluetooth devices */
+ { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* Additional Realtek 8821AE Bluetooth devices */
+ { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
+
+ /* Additional Realtek 8822BE Bluetooth devices */
+ { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
+ { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
+
+ /* Additional Realtek 8822CE Bluetooth devices */
+ { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* Actions Semiconductor ATS2851 based devices */
+ { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
+
+ /* Silicon Wave based devices */
+ { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
+
+ { } /* Terminating entry */
+};
+
+/* The Bluetooth USB module build into some devices needs to be reset on resume,
+ * this is a problem with the platform (likely shutting off all power) not with
+ * the module itself. So we use a DMI list to match known broken platforms.
+ */
+static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
+ {
+ /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
+ },
+ },
+ {
+ /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
+ },
+ },
+ {
+ /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
+ },
+ },
+ {}
+};
+
+#define BTUSB_MAX_ISOC_FRAMES 10
+
+#define BTUSB_INTR_RUNNING 0
+#define BTUSB_BULK_RUNNING 1
+#define BTUSB_ISOC_RUNNING 2
+#define BTUSB_SUSPENDING 3
+#define BTUSB_DID_ISO_RESUME 4
+#define BTUSB_BOOTLOADER 5
+#define BTUSB_DOWNLOADING 6
+#define BTUSB_FIRMWARE_LOADED 7
+#define BTUSB_FIRMWARE_FAILED 8
+#define BTUSB_BOOTING 9
+#define BTUSB_DIAG_RUNNING 10
+#define BTUSB_OOB_WAKE_ENABLED 11
+#define BTUSB_HW_RESET_ACTIVE 12
+#define BTUSB_TX_WAIT_VND_EVT 13
+#define BTUSB_WAKEUP_AUTOSUSPEND 14
+#define BTUSB_USE_ALT3_FOR_WBS 15
+
+struct btusb_data {
+ struct hci_dev *hdev;
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ struct usb_interface *isoc;
+ struct usb_interface *diag;
+ unsigned isoc_ifnum;
+
+ unsigned long flags;
+
+ bool poll_sync;
+ int intr_interval;
+ struct work_struct work;
+ struct work_struct waker;
+ struct delayed_work rx_work;
+
+ struct sk_buff_head acl_q;
+
+ struct usb_anchor deferred;
+ struct usb_anchor tx_anchor;
+ int tx_in_flight;
+ spinlock_t txlock;
+
+ struct usb_anchor intr_anchor;
+ struct usb_anchor bulk_anchor;
+ struct usb_anchor isoc_anchor;
+ struct usb_anchor diag_anchor;
+ struct usb_anchor ctrl_anchor;
+ spinlock_t rxlock;
+
+ struct sk_buff *evt_skb;
+ struct sk_buff *acl_skb;
+ struct sk_buff *sco_skb;
+
+ struct usb_endpoint_descriptor *intr_ep;
+ struct usb_endpoint_descriptor *bulk_tx_ep;
+ struct usb_endpoint_descriptor *bulk_rx_ep;
+ struct usb_endpoint_descriptor *isoc_tx_ep;
+ struct usb_endpoint_descriptor *isoc_rx_ep;
+ struct usb_endpoint_descriptor *diag_tx_ep;
+ struct usb_endpoint_descriptor *diag_rx_ep;
+
+ struct gpio_desc *reset_gpio;
+
+ __u8 cmdreq_type;
+ __u8 cmdreq;
+
+ unsigned int sco_num;
+ unsigned int air_mode;
+ bool usb_alt6_packet_flow;
+ int isoc_altsetting;
+ int suspend_count;
+
+ int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
+ int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
+ int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
+
+ int (*setup_on_usb)(struct hci_dev *hdev);
+
+ int oob_wake_irq; /* irq for out-of-band wake-on-bt */
+ unsigned cmd_timeout_cnt;
+};
+
+static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct gpio_desc *reset_gpio = data->reset_gpio;
+
+ if (++data->cmd_timeout_cnt < 5)
+ return;
+
+ if (!reset_gpio) {
+ bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
+ return;
+ }
+
+ /*
+ * Toggle the hard reset line if the platform provides one. The reset
+ * is going to yank the device off the USB and then replug. So doing
+ * once is enough. The cleanup is handled correctly on the way out
+ * (standard USB disconnect), and the new device is detected cleanly
+ * and bound to the driver again like it should be.
+ */
+ if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+ bt_dev_err(hdev, "last reset failed? Not resetting again");
+ return;
+ }
+
+ bt_dev_err(hdev, "Initiating HW reset via gpio");
+ gpiod_set_value_cansleep(reset_gpio, 1);
+ msleep(100);
+ gpiod_set_value_cansleep(reset_gpio, 0);
+}
+
+static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct gpio_desc *reset_gpio = data->reset_gpio;
+
+ if (++data->cmd_timeout_cnt < 5)
+ return;
+
+ if (!reset_gpio) {
+ bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
+ return;
+ }
+
+ /* Toggle the hard reset line. The Realtek device is going to
+ * yank itself off the USB and then replug. The cleanup is handled
+ * correctly on the way out (standard USB disconnect), and the new
+ * device is detected cleanly and bound to the driver again like
+ * it should be.
+ */
+ if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+ bt_dev_err(hdev, "last reset failed? Not resetting again");
+ return;
+ }
+
+ bt_dev_err(hdev, "Reset Realtek device via gpio");
+ gpiod_set_value_cansleep(reset_gpio, 1);
+ msleep(200);
+ gpiod_set_value_cansleep(reset_gpio, 0);
+}
+
+static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct gpio_desc *reset_gpio = data->reset_gpio;
+ int err;
+
+ if (++data->cmd_timeout_cnt < 5)
+ return;
+
+ if (reset_gpio) {
+ bt_dev_err(hdev, "Reset qca device via bt_en gpio");
+
+ /* Toggle the hard reset line. The qca bt device is going to
+ * yank itself off the USB and then replug. The cleanup is handled
+ * correctly on the way out (standard USB disconnect), and the new
+ * device is detected cleanly and bound to the driver again like
+ * it should be.
+ */
+ if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+ bt_dev_err(hdev, "last reset failed? Not resetting again");
+ return;
+ }
+
+ gpiod_set_value_cansleep(reset_gpio, 0);
+ msleep(200);
+ gpiod_set_value_cansleep(reset_gpio, 1);
+
+ return;
+ }
+
+ bt_dev_err(hdev, "Multiple cmd timeouts seen. Resetting usb device.");
+ /* This is not an unbalanced PM reference since the device will reset */
+ err = usb_autopm_get_interface(data->intf);
+ if (!err)
+ usb_queue_reset_device(data->intf);
+ else
+ bt_dev_err(hdev, "Failed usb_autopm_get_interface with %d", err);
+}
+
+static inline void btusb_free_frags(struct btusb_data *data)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&data->rxlock, flags);
+
+ dev_kfree_skb_irq(data->evt_skb);
+ data->evt_skb = NULL;
+
+ dev_kfree_skb_irq(data->acl_skb);
+ data->acl_skb = NULL;
+
+ dev_kfree_skb_irq(data->sco_skb);
+ data->sco_skb = NULL;
+
+ spin_unlock_irqrestore(&data->rxlock, flags);
+}
+
+static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
+{
+ if (data->intr_interval) {
+ /* Trigger dequeue immediatelly if an event is received */
+ schedule_delayed_work(&data->rx_work, 0);
+ }
+
+ return data->recv_event(data->hdev, skb);
+}
+
+static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
+{
+ struct sk_buff *skb;
+ unsigned long flags;
+ int err = 0;
+
+ spin_lock_irqsave(&data->rxlock, flags);
+ skb = data->evt_skb;
+
+ while (count) {
+ int len;
+
+ if (!skb) {
+ skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
+ if (!skb) {
+ err = -ENOMEM;
+ break;
+ }
+
+ hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
+ hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
+ }
+
+ len = min_t(uint, hci_skb_expect(skb), count);
+ skb_put_data(skb, buffer, len);
+
+ count -= len;
+ buffer += len;
+ hci_skb_expect(skb) -= len;
+
+ if (skb->len == HCI_EVENT_HDR_SIZE) {
+ /* Complete event header */
+ hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
+
+ if (skb_tailroom(skb) < hci_skb_expect(skb)) {
+ kfree_skb(skb);
+ skb = NULL;
+
+ err = -EILSEQ;
+ break;
+ }
+ }
+
+ if (!hci_skb_expect(skb)) {
+ /* Complete frame */
+ btusb_recv_event(data, skb);
+ skb = NULL;
+ }
+ }
+
+ data->evt_skb = skb;
+ spin_unlock_irqrestore(&data->rxlock, flags);
+
+ return err;
+}
+
+static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
+{
+ /* Only queue ACL packet if intr_interval is set as it means
+ * force_poll_sync has been enabled.
+ */
+ if (!data->intr_interval)
+ return data->recv_acl(data->hdev, skb);
+
+ skb_queue_tail(&data->acl_q, skb);
+ schedule_delayed_work(&data->rx_work, data->intr_interval);
+
+ return 0;
+}
+
+static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
+{
+ struct sk_buff *skb;
+ unsigned long flags;
+ int err = 0;
+
+ spin_lock_irqsave(&data->rxlock, flags);
+ skb = data->acl_skb;
+
+ while (count) {
+ int len;
+
+ if (!skb) {
+ skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
+ if (!skb) {
+ err = -ENOMEM;
+ break;
+ }
+
+ hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
+ hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
+ }
+
+ len = min_t(uint, hci_skb_expect(skb), count);
+ skb_put_data(skb, buffer, len);
+
+ count -= len;
+ buffer += len;
+ hci_skb_expect(skb) -= len;
+
+ if (skb->len == HCI_ACL_HDR_SIZE) {
+ __le16 dlen = hci_acl_hdr(skb)->dlen;
+
+ /* Complete ACL header */
+ hci_skb_expect(skb) = __le16_to_cpu(dlen);
+
+ if (skb_tailroom(skb) < hci_skb_expect(skb)) {
+ kfree_skb(skb);
+ skb = NULL;
+
+ err = -EILSEQ;
+ break;
+ }
+ }
+
+ if (!hci_skb_expect(skb)) {
+ /* Complete frame */
+ btusb_recv_acl(data, skb);
+ skb = NULL;
+ }
+ }
+
+ data->acl_skb = skb;
+ spin_unlock_irqrestore(&data->rxlock, flags);
+
+ return err;
+}
+
+static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
+{
+ struct sk_buff *skb;
+ unsigned long flags;
+ int err = 0;
+
+ spin_lock_irqsave(&data->rxlock, flags);
+ skb = data->sco_skb;
+
+ while (count) {
+ int len;
+
+ if (!skb) {
+ skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
+ if (!skb) {
+ err = -ENOMEM;
+ break;
+ }
+
+ hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
+ hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
+ }
+
+ len = min_t(uint, hci_skb_expect(skb), count);
+ skb_put_data(skb, buffer, len);
+
+ count -= len;
+ buffer += len;
+ hci_skb_expect(skb) -= len;
+
+ if (skb->len == HCI_SCO_HDR_SIZE) {
+ /* Complete SCO header */
+ hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
+
+ if (skb_tailroom(skb) < hci_skb_expect(skb)) {
+ kfree_skb(skb);
+ skb = NULL;
+
+ err = -EILSEQ;
+ break;
+ }
+ }
+
+ if (!hci_skb_expect(skb)) {
+ /* Complete frame */
+ hci_recv_frame(data->hdev, skb);
+ skb = NULL;
+ }
+ }
+
+ data->sco_skb = skb;
+ spin_unlock_irqrestore(&data->rxlock, flags);
+
+ return err;
+}
+
+static void btusb_intr_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
+ urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return;
+
+ if (urb->status == 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ if (btusb_recv_intr(data, urb->transfer_buffer,
+ urb->actual_length) < 0) {
+ bt_dev_err(hdev, "corrupted event packet");
+ hdev->stat.err_rx++;
+ }
+ } else if (urb->status == -ENOENT) {
+ /* Avoid suspend failed when usb_kill_urb */
+ return;
+ }
+
+ if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
+ return;
+
+ usb_mark_last_busy(data->udev);
+ usb_anchor_urb(urb, &data->intr_anchor);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected
+ */
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
+ urb, -err);
+ if (err != -EPERM)
+ hci_cmd_sync_cancel(hdev, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size;
+
+ BT_DBG("%s", hdev->name);
+
+ if (!data->intr_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
+
+ usb_fill_int_urb(urb, data->udev, pipe, buf, size,
+ btusb_intr_complete, hdev, data->intr_ep->bInterval);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_anchor_urb(urb, &data->intr_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p submission failed (%d)",
+ urb, -err);
+ if (err != -EPERM)
+ hci_cmd_sync_cancel(hdev, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ /* Only initialize intr_interval if URB poll sync is enabled */
+ if (!data->poll_sync)
+ goto done;
+
+ /* The units are frames (milliseconds) for full and low speed devices,
+ * and microframes (1/8 millisecond) for highspeed and SuperSpeed
+ * devices.
+ *
+ * This is done once on open/resume so it shouldn't change even if
+ * force_poll_sync changes.
+ */
+ switch (urb->dev->speed) {
+ case USB_SPEED_SUPER_PLUS:
+ case USB_SPEED_SUPER: /* units are 125us */
+ data->intr_interval = usecs_to_jiffies(urb->interval * 125);
+ break;
+ default:
+ data->intr_interval = msecs_to_jiffies(urb->interval);
+ break;
+ }
+
+done:
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static void btusb_bulk_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
+ urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return;
+
+ if (urb->status == 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ if (data->recv_bulk(data, urb->transfer_buffer,
+ urb->actual_length) < 0) {
+ bt_dev_err(hdev, "corrupted ACL packet");
+ hdev->stat.err_rx++;
+ }
+ } else if (urb->status == -ENOENT) {
+ /* Avoid suspend failed when usb_kill_urb */
+ return;
+ }
+
+ if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
+ return;
+
+ usb_anchor_urb(urb, &data->bulk_anchor);
+ usb_mark_last_busy(data->udev);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected
+ */
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size = HCI_MAX_FRAME_SIZE;
+
+ BT_DBG("%s", hdev->name);
+
+ if (!data->bulk_rx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
+
+ usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
+ btusb_bulk_complete, hdev);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_mark_last_busy(data->udev);
+ usb_anchor_urb(urb, &data->bulk_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p submission failed (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static void btusb_isoc_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ int i, err;
+
+ BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
+ urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return;
+
+ if (urb->status == 0) {
+ for (i = 0; i < urb->number_of_packets; i++) {
+ unsigned int offset = urb->iso_frame_desc[i].offset;
+ unsigned int length = urb->iso_frame_desc[i].actual_length;
+
+ if (urb->iso_frame_desc[i].status)
+ continue;
+
+ hdev->stat.byte_rx += length;
+
+ if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
+ length) < 0) {
+ bt_dev_err(hdev, "corrupted SCO packet");
+ hdev->stat.err_rx++;
+ }
+ }
+ } else if (urb->status == -ENOENT) {
+ /* Avoid suspend failed when usb_kill_urb */
+ return;
+ }
+
+ if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
+ return;
+
+ usb_anchor_urb(urb, &data->isoc_anchor);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected
+ */
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
+ urb, -err);
+ usb_unanchor_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;
+
+ BT_DBG("len %d mtu %d", len, mtu);
+
+ for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
+ i++, offset += mtu, len -= mtu) {
+ urb->iso_frame_desc[i].offset = offset;
+ urb->iso_frame_desc[i].length = mtu;
+ }
+
+ 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 int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size;
+
+ BT_DBG("%s", hdev->name);
+
+ if (!data->isoc_rx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
+ BTUSB_MAX_ISOC_FRAMES;
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
+
+ usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
+ hdev, data->isoc_rx_ep->bInterval);
+
+ urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
+
+ __fill_isoc_descriptor(urb, size,
+ le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
+
+ usb_anchor_urb(urb, &data->isoc_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p submission failed (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static void btusb_diag_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
+ urb->actual_length);
+
+ if (urb->status == 0) {
+ struct sk_buff *skb;
+
+ skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
+ if (skb) {
+ skb_put_data(skb, urb->transfer_buffer,
+ urb->actual_length);
+ hci_recv_diag(hdev, skb);
+ }
+ } else if (urb->status == -ENOENT) {
+ /* Avoid suspend failed when usb_kill_urb */
+ return;
+ }
+
+ if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
+ return;
+
+ usb_anchor_urb(urb, &data->diag_anchor);
+ usb_mark_last_busy(data->udev);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected
+ */
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size = HCI_MAX_FRAME_SIZE;
+
+ BT_DBG("%s", hdev->name);
+
+ if (!data->diag_rx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
+
+ usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
+ btusb_diag_complete, hdev);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_mark_last_busy(data->udev);
+ usb_anchor_urb(urb, &data->diag_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p submission failed (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static void btusb_tx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = urb->context;
+ struct hci_dev *hdev = (struct hci_dev *)skb->dev;
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ unsigned long flags;
+
+ BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
+ urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (!urb->status) {
+ hdev->stat.byte_tx += urb->transfer_buffer_length;
+ } else {
+ if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
+ hci_cmd_sync_cancel(hdev, -urb->status);
+ hdev->stat.err_tx++;
+ }
+
+done:
+ spin_lock_irqsave(&data->txlock, flags);
+ data->tx_in_flight--;
+ spin_unlock_irqrestore(&data->txlock, flags);
+
+ kfree(urb->setup_packet);
+
+ kfree_skb(skb);
+}
+
+static void btusb_isoc_tx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = urb->context;
+ struct hci_dev *hdev = (struct hci_dev *)skb->dev;
+
+ BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
+ urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (!urb->status)
+ hdev->stat.byte_tx += urb->transfer_buffer_length;
+ else
+ hdev->stat.err_tx++;
+
+done:
+ kfree(urb->setup_packet);
+
+ kfree_skb(skb);
+}
+
+static int btusb_open(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s", hdev->name);
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return err;
+
+ /* Patching USB firmware files prior to starting any URBs of HCI path
+ * It is more safe to use USB bulk channel for downloading USB patch
+ */
+ if (data->setup_on_usb) {
+ err = data->setup_on_usb(hdev);
+ if (err < 0)
+ goto setup_fail;
+ }
+
+ data->intf->needs_remote_wakeup = 1;
+
+ if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
+ goto done;
+
+ err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
+ if (err < 0)
+ goto failed;
+
+ err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
+ if (err < 0) {
+ usb_kill_anchored_urbs(&data->intr_anchor);
+ goto failed;
+ }
+
+ set_bit(BTUSB_BULK_RUNNING, &data->flags);
+ btusb_submit_bulk_urb(hdev, GFP_KERNEL);
+
+ if (data->diag) {
+ if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
+ set_bit(BTUSB_DIAG_RUNNING, &data->flags);
+ }
+
+done:
+ usb_autopm_put_interface(data->intf);
+ return 0;
+
+failed:
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+setup_fail:
+ usb_autopm_put_interface(data->intf);
+ return err;
+}
+
+static void btusb_stop_traffic(struct btusb_data *data)
+{
+ usb_kill_anchored_urbs(&data->intr_anchor);
+ usb_kill_anchored_urbs(&data->bulk_anchor);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+ usb_kill_anchored_urbs(&data->diag_anchor);
+ usb_kill_anchored_urbs(&data->ctrl_anchor);
+}
+
+static int btusb_close(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s", hdev->name);
+
+ cancel_delayed_work(&data->rx_work);
+ cancel_work_sync(&data->work);
+ cancel_work_sync(&data->waker);
+
+ skb_queue_purge(&data->acl_q);
+
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+ clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
+
+ btusb_stop_traffic(data);
+ btusb_free_frags(data);
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ goto failed;
+
+ data->intf->needs_remote_wakeup = 0;
+
+ /* Enable remote wake up for auto-suspend */
+ if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
+ data->intf->needs_remote_wakeup = 1;
+
+ usb_autopm_put_interface(data->intf);
+
+failed:
+ usb_scuttle_anchored_urbs(&data->deferred);
+ return 0;
+}
+
+static int btusb_flush(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+
+ BT_DBG("%s", hdev->name);
+
+ cancel_delayed_work(&data->rx_work);
+
+ skb_queue_purge(&data->acl_q);
+
+ usb_kill_anchored_urbs(&data->tx_anchor);
+ btusb_free_frags(data);
+
+ return 0;
+}
+
+static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct usb_ctrlrequest *dr;
+ struct urb *urb;
+ unsigned int pipe;
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return ERR_PTR(-ENOMEM);
+
+ dr = kmalloc(sizeof(*dr), GFP_KERNEL);
+ if (!dr) {
+ usb_free_urb(urb);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ dr->bRequestType = data->cmdreq_type;
+ dr->bRequest = data->cmdreq;
+ dr->wIndex = 0;
+ dr->wValue = 0;
+ dr->wLength = __cpu_to_le16(skb->len);
+
+ pipe = usb_sndctrlpipe(data->udev, 0x00);
+
+ usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
+ skb->data, skb->len, btusb_tx_complete, skb);
+
+ skb->dev = (void *)hdev;
+
+ return urb;
+}
+
+static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned int pipe;
+
+ if (!data->bulk_tx_ep)
+ return ERR_PTR(-ENODEV);
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return ERR_PTR(-ENOMEM);
+
+ pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
+
+ usb_fill_bulk_urb(urb, data->udev, pipe,
+ skb->data, skb->len, btusb_tx_complete, skb);
+
+ skb->dev = (void *)hdev;
+
+ return urb;
+}
+
+static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned int pipe;
+
+ if (!data->isoc_tx_ep)
+ return ERR_PTR(-ENODEV);
+
+ urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
+ if (!urb)
+ return ERR_PTR(-ENOMEM);
+
+ pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
+
+ usb_fill_int_urb(urb, data->udev, pipe,
+ skb->data, skb->len, btusb_isoc_tx_complete,
+ skb, data->isoc_tx_ep->bInterval);
+
+ urb->transfer_flags = URB_ISO_ASAP;
+
+ 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;
+}
+
+static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ usb_anchor_urb(urb, &data->tx_anchor);
+
+ err = usb_submit_urb(urb, GFP_KERNEL);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p submission failed (%d)",
+ urb, -err);
+ kfree(urb->setup_packet);
+ usb_unanchor_urb(urb);
+ } else {
+ usb_mark_last_busy(data->udev);
+ }
+
+ usb_free_urb(urb);
+ return err;
+}
+
+static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ unsigned long flags;
+ bool suspending;
+
+ spin_lock_irqsave(&data->txlock, flags);
+ suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
+ if (!suspending)
+ data->tx_in_flight++;
+ spin_unlock_irqrestore(&data->txlock, flags);
+
+ if (!suspending)
+ return submit_tx_urb(hdev, urb);
+
+ usb_anchor_urb(urb, &data->deferred);
+ schedule_work(&data->waker);
+
+ usb_free_urb(urb);
+ return 0;
+}
+
+static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct urb *urb;
+
+ BT_DBG("%s", hdev->name);
+
+ switch (hci_skb_pkt_type(skb)) {
+ case HCI_COMMAND_PKT:
+ urb = alloc_ctrl_urb(hdev, skb);
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ hdev->stat.cmd_tx++;
+ return submit_or_queue_tx_urb(hdev, urb);
+
+ case HCI_ACLDATA_PKT:
+ urb = alloc_bulk_urb(hdev, skb);
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ hdev->stat.acl_tx++;
+ return submit_or_queue_tx_urb(hdev, urb);
+
+ case HCI_SCODATA_PKT:
+ if (hci_conn_num(hdev, SCO_LINK) < 1)
+ return -ENODEV;
+
+ urb = alloc_isoc_urb(hdev, skb);
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ hdev->stat.sco_tx++;
+ return submit_tx_urb(hdev, urb);
+
+ case HCI_ISODATA_PKT:
+ urb = alloc_bulk_urb(hdev, skb);
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ return submit_or_queue_tx_urb(hdev, urb);
+ }
+
+ return -EILSEQ;
+}
+
+static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+
+ BT_DBG("%s evt %d", hdev->name, 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);
+ }
+}
+
+static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct usb_interface *intf = data->isoc;
+ struct usb_endpoint_descriptor *ep_desc;
+ int i, err;
+
+ if (!data->isoc)
+ return -ENODEV;
+
+ err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
+ if (err < 0) {
+ bt_dev_err(hdev, "setting interface failed (%d)", -err);
+ return err;
+ }
+
+ data->isoc_altsetting = altsetting;
+
+ data->isoc_tx_ep = NULL;
+ data->isoc_rx_ep = NULL;
+
+ for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+ ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+ if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
+ data->isoc_tx_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
+ data->isoc_rx_ep = ep_desc;
+ continue;
+ }
+ }
+
+ if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
+ bt_dev_err(hdev, "invalid SCO descriptors");
+ return -ENODEV;
+ }
+
+ 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);
+ dev_kfree_skb_irq(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 = 0;
+ int err;
+
+ if (data->sco_num > 0) {
+ if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
+ err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
+ if (err < 0) {
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+ return;
+ }
+
+ set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
+ }
+
+ 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;
+ }
+ } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
+ /* Bluetooth USB spec recommends alt 6 (63 bytes), but
+ * many adapters do not support it. Alt 1 appears to
+ * work for all adapters that do not have alt 6, and
+ * which work with WBS at all. Some devices prefer
+ * alt 3 (HCI payload >= 60 Bytes let air packet
+ * data satisfy 60 bytes), requiring
+ * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
+ * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
+ */
+ if (btusb_find_altsetting(data, 6))
+ new_alts = 6;
+ else if (btusb_find_altsetting(data, 3) &&
+ hdev->sco_mtu >= 72 &&
+ test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
+ new_alts = 3;
+ else
+ new_alts = 1;
+ }
+
+ 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);
+
+ __set_isoc_interface(hdev, 0);
+ if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
+ usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
+ }
+}
+
+static void btusb_waker(struct work_struct *work)
+{
+ struct btusb_data *data = container_of(work, struct btusb_data, waker);
+ int err;
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return;
+
+ usb_autopm_put_interface(data->intf);
+}
+
+static void btusb_rx_work(struct work_struct *work)
+{
+ struct btusb_data *data = container_of(work, struct btusb_data,
+ rx_work.work);
+ struct sk_buff *skb;
+
+ /* Dequeue ACL data received during the interval */
+ while ((skb = skb_dequeue(&data->acl_q)))
+ data->recv_acl(data->hdev, skb);
+}
+
+static int btusb_setup_bcm92035(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+ u8 val = 0x00;
+
+ BT_DBG("%s", hdev->name);
+
+ skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb))
+ bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
+ else
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static int btusb_setup_csr(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
+ struct hci_rp_read_local_version *rp;
+ struct sk_buff *skb;
+ bool is_fake = false;
+ int ret;
+
+ BT_DBG("%s", hdev->name);
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ int err = PTR_ERR(skb);
+ bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
+ return err;
+ }
+
+ if (skb->len != sizeof(struct hci_rp_read_local_version)) {
+ bt_dev_err(hdev, "CSR: Local version length mismatch");
+ kfree_skb(skb);
+ return -EIO;
+ }
+
+ rp = (struct hci_rp_read_local_version *)skb->data;
+
+ bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x; LMP ver=%u subver=%04x; manufacturer=%u",
+ le16_to_cpu(rp->hci_ver), le16_to_cpu(rp->hci_rev),
+ le16_to_cpu(rp->lmp_ver), le16_to_cpu(rp->lmp_subver),
+ le16_to_cpu(rp->manufacturer));
+
+ /* Detect a wide host of Chinese controllers that aren't CSR.
+ *
+ * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
+ *
+ * The main thing they have in common is that these are really popular low-cost
+ * options that support newer Bluetooth versions but rely on heavy VID/PID
+ * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
+ *
+ * We detect actual CSR devices by checking that the HCI manufacturer code
+ * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
+ * HCI rev values always match. As they both store the firmware number.
+ */
+ if (le16_to_cpu(rp->manufacturer) != 10 ||
+ le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
+ is_fake = true;
+
+ /* Known legit CSR firmware build numbers and their supported BT versions:
+ * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
+ * - 1.2 (0x2) -> 0x04d9, 0x0529
+ * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
+ * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
+ * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
+ *
+ * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
+ * support BT 1.1 only; so it's a dead giveaway when some
+ * third-party BT 4.0 dongle reuses it.
+ */
+ else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
+ le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_1)
+ is_fake = true;
+
+ else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
+ le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_2)
+ is_fake = true;
+
+ else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
+ le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_0)
+ is_fake = true;
+
+ else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
+ le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_1)
+ is_fake = true;
+
+ else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
+ le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0)
+ is_fake = true;
+
+ /* Other clones which beat all the above checks */
+ else if (bcdDevice == 0x0134 &&
+ le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
+ le16_to_cpu(rp->hci_ver) == BLUETOOTH_VER_2_0)
+ is_fake = true;
+
+ if (is_fake) {
+ bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
+
+ /* Generally these clones have big discrepancies between
+ * advertised features and what's actually supported.
+ * Probably will need to be expanded in the future;
+ * without these the controller will lock up.
+ */
+ set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
+ set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
+ set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
+ set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
+
+ /* Clear the reset quirk since this is not an actual
+ * early Bluetooth 1.1 device from CSR.
+ */
+ clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
+ clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+
+ /*
+ * Special workaround for these BT 4.0 chip clones, and potentially more:
+ *
+ * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
+ * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
+ *
+ * These controllers are really messed-up.
+ *
+ * 1. Their bulk RX endpoint will never report any data unless
+ * the device was suspended at least once (yes, really).
+ * 2. They will not wakeup when autosuspended and receiving data
+ * on their bulk RX endpoint from e.g. a keyboard or mouse
+ * (IOW remote-wakeup support is broken for the bulk endpoint).
+ *
+ * To fix 1. enable runtime-suspend, force-suspend the
+ * HCI and then wake-it up by disabling runtime-suspend.
+ *
+ * To fix 2. clear the HCI's can_wake flag, this way the HCI
+ * will still be autosuspended when it is not open.
+ *
+ * --
+ *
+ * Because these are widespread problems we prefer generic solutions; so
+ * apply this initialization quirk to every controller that gets here,
+ * it should be harmless. The alternative is to not work at all.
+ */
+ pm_runtime_allow(&data->udev->dev);
+
+ ret = pm_runtime_suspend(&data->udev->dev);
+ if (ret >= 0)
+ msleep(200);
+ else
+ bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
+
+ pm_runtime_forbid(&data->udev->dev);
+
+ device_set_wakeup_capable(&data->udev->dev, false);
+
+ /* Re-enable autosuspend if this was requested */
+ if (enable_autosuspend)
+ usb_enable_autosuspend(data->udev);
+ }
+
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
+{
+ struct sk_buff *skb;
+ struct hci_event_hdr *hdr;
+ struct hci_ev_cmd_complete *evt;
+
+ skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = skb_put(skb, sizeof(*hdr));
+ hdr->evt = HCI_EV_CMD_COMPLETE;
+ hdr->plen = sizeof(*evt) + 1;
+
+ evt = skb_put(skb, sizeof(*evt));
+ evt->ncmd = 0x01;
+ evt->opcode = cpu_to_le16(opcode);
+
+ skb_put_u8(skb, 0x00);
+
+ hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
+
+ return hci_recv_frame(hdev, skb);
+}
+
+static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
+ int count)
+{
+ struct hci_dev *hdev = data->hdev;
+
+ /* When the device is in bootloader mode, then it can send
+ * events via the bulk endpoint. These events are treated the
+ * same way as the ones received from the interrupt endpoint.
+ */
+ if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
+ return btusb_recv_intr(data, buffer, count);
+
+ return btusb_recv_bulk(data, buffer, count);
+}
+
+static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
+ struct hci_event_hdr *hdr = (void *)skb->data;
+
+ if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
+ hdr->plen > 0) {
+ const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
+ unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
+
+ switch (skb->data[2]) {
+ case 0x02:
+ /* When switching to the operational firmware
+ * the device sends a vendor specific event
+ * indicating that the bootup completed.
+ */
+ btintel_bootup(hdev, ptr, len);
+ break;
+ case 0x06:
+ /* When the firmware loading completes the
+ * device sends out a vendor specific event
+ * indicating the result of the firmware
+ * loading.
+ */
+ btintel_secure_send_result(hdev, ptr, len);
+ break;
+ }
+ }
+ }
+
+ return hci_recv_frame(hdev, skb);
+}
+
+static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct urb *urb;
+
+ BT_DBG("%s", hdev->name);
+
+ switch (hci_skb_pkt_type(skb)) {
+ case HCI_COMMAND_PKT:
+ if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
+ struct hci_command_hdr *cmd = (void *)skb->data;
+ __u16 opcode = le16_to_cpu(cmd->opcode);
+
+ /* When in bootloader mode and the command 0xfc09
+ * is received, it needs to be send down the
+ * bulk endpoint. So allocate a bulk URB instead.
+ */
+ if (opcode == 0xfc09)
+ urb = alloc_bulk_urb(hdev, skb);
+ else
+ urb = alloc_ctrl_urb(hdev, skb);
+
+ /* When the 0xfc01 command is issued to boot into
+ * the operational firmware, it will actually not
+ * send a command complete event. To keep the flow
+ * control working inject that event here.
+ */
+ if (opcode == 0xfc01)
+ inject_cmd_complete(hdev, opcode);
+ } else {
+ urb = alloc_ctrl_urb(hdev, skb);
+ }
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ hdev->stat.cmd_tx++;
+ return submit_or_queue_tx_urb(hdev, urb);
+
+ case HCI_ACLDATA_PKT:
+ urb = alloc_bulk_urb(hdev, skb);
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ hdev->stat.acl_tx++;
+ return submit_or_queue_tx_urb(hdev, urb);
+
+ case HCI_SCODATA_PKT:
+ if (hci_conn_num(hdev, SCO_LINK) < 1)
+ return -ENODEV;
+
+ urb = alloc_isoc_urb(hdev, skb);
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ hdev->stat.sco_tx++;
+ return submit_tx_urb(hdev, urb);
+
+ case HCI_ISODATA_PKT:
+ urb = alloc_bulk_urb(hdev, skb);
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ return submit_or_queue_tx_urb(hdev, urb);
+ }
+
+ return -EILSEQ;
+}
+
+/* UHW CR mapping */
+#define MTK_BT_MISC 0x70002510
+#define MTK_BT_SUBSYS_RST 0x70002610
+#define MTK_UDMA_INT_STA_BT 0x74000024
+#define MTK_UDMA_INT_STA_BT1 0x74000308
+#define MTK_BT_WDT_STATUS 0x740003A0
+#define MTK_EP_RST_OPT 0x74011890
+#define MTK_EP_RST_IN_OUT_OPT 0x00010001
+#define MTK_BT_RST_DONE 0x00000100
+#define MTK_BT_RESET_WAIT_MS 100
+#define MTK_BT_RESET_NUM_TRIES 10
+
+static void btusb_mtk_wmt_recv(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct sk_buff *skb;
+ int err;
+
+ if (urb->status == 0 && urb->actual_length > 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ /* WMT event shouldn't be fragmented and the size should be
+ * less than HCI_WMT_MAX_EVENT_SIZE.
+ */
+ skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
+ if (!skb) {
+ hdev->stat.err_rx++;
+ kfree(urb->setup_packet);
+ return;
+ }
+
+ hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
+ skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
+
+ /* When someone waits for the WMT event, the skb is being cloned
+ * and being processed the events from there then.
+ */
+ if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
+ data->evt_skb = skb_clone(skb, GFP_ATOMIC);
+ if (!data->evt_skb) {
+ kfree_skb(skb);
+ kfree(urb->setup_packet);
+ return;
+ }
+ }
+
+ err = hci_recv_frame(hdev, skb);
+ if (err < 0) {
+ kfree_skb(data->evt_skb);
+ data->evt_skb = NULL;
+ kfree(urb->setup_packet);
+ return;
+ }
+
+ if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
+ &data->flags)) {
+ /* Barrier to sync with other CPUs */
+ smp_mb__after_atomic();
+ wake_up_bit(&data->flags,
+ BTUSB_TX_WAIT_VND_EVT);
+ }
+ kfree(urb->setup_packet);
+ return;
+ } else if (urb->status == -ENOENT) {
+ /* Avoid suspend failed when usb_kill_urb */
+ return;
+ }
+
+ usb_mark_last_busy(data->udev);
+
+ /* The URB complete handler is still called with urb->actual_length = 0
+ * when the event is not available, so we should keep re-submitting
+ * URB until WMT event returns, Also, It's necessary to wait some time
+ * between the two consecutive control URBs to relax the target device
+ * to generate the event. Otherwise, the WMT event cannot return from
+ * the device successfully.
+ */
+ udelay(500);
+
+ usb_anchor_urb(urb, &data->ctrl_anchor);
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ kfree(urb->setup_packet);
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected
+ */
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct usb_ctrlrequest *dr;
+ unsigned char *buf;
+ int err, size = 64;
+ unsigned int pipe;
+ struct urb *urb;
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return -ENOMEM;
+
+ dr = kmalloc(sizeof(*dr), GFP_KERNEL);
+ if (!dr) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
+ dr->bRequest = 1;
+ dr->wIndex = cpu_to_le16(0);
+ dr->wValue = cpu_to_le16(48);
+ dr->wLength = cpu_to_le16(size);
+
+ buf = kmalloc(size, GFP_KERNEL);
+ if (!buf) {
+ kfree(dr);
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvctrlpipe(data->udev, 0);
+
+ usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
+ buf, size, btusb_mtk_wmt_recv, hdev);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_anchor_urb(urb, &data->ctrl_anchor);
+ err = usb_submit_urb(urb, GFP_KERNEL);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p submission failed (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
+ struct btmtk_hci_wmt_params *wmt_params)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
+ u32 hlen, status = BTMTK_WMT_INVALID;
+ struct btmtk_hci_wmt_evt *wmt_evt;
+ struct btmtk_hci_wmt_cmd *wc;
+ struct btmtk_wmt_hdr *hdr;
+ int err;
+
+ /* Send the WMT command and wait until the WMT event returns */
+ hlen = sizeof(*hdr) + wmt_params->dlen;
+ if (hlen > 255)
+ return -EINVAL;
+
+ wc = kzalloc(hlen, GFP_KERNEL);
+ if (!wc)
+ return -ENOMEM;
+
+ hdr = &wc->hdr;
+ hdr->dir = 1;
+ hdr->op = wmt_params->op;
+ hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
+ hdr->flag = wmt_params->flag;
+ memcpy(wc->data, wmt_params->data, wmt_params->dlen);
+
+ set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
+
+ /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
+ * it needs constantly polling control pipe until the host received the
+ * WMT event, thus, we should require to specifically acquire PM counter
+ * on the USB to prevent the interface from entering auto suspended
+ * while WMT cmd/event in progress.
+ */
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ goto err_free_wc;
+
+ err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
+
+ if (err < 0) {
+ clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
+ usb_autopm_put_interface(data->intf);
+ goto err_free_wc;
+ }
+
+ /* Submit control IN URB on demand to process the WMT event */
+ err = btusb_mtk_submit_wmt_recv_urb(hdev);
+
+ usb_autopm_put_interface(data->intf);
+
+ if (err < 0)
+ goto err_free_wc;
+
+ /* The vendor specific WMT commands are all answered by a vendor
+ * specific event and will have the Command Status or Command
+ * Complete as with usual HCI command flow control.
+ *
+ * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
+ * state to be cleared. The driver specific event receive routine
+ * will clear that state and with that indicate completion of the
+ * WMT command.
+ */
+ err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
+ TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
+ if (err == -EINTR) {
+ bt_dev_err(hdev, "Execution of wmt command interrupted");
+ clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
+ goto err_free_wc;
+ }
+
+ if (err) {
+ bt_dev_err(hdev, "Execution of wmt command timed out");
+ clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
+ err = -ETIMEDOUT;
+ goto err_free_wc;
+ }
+
+ if (data->evt_skb == NULL)
+ goto err_free_wc;
+
+ /* Parse and handle the return WMT event */
+ wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
+ if (wmt_evt->whdr.op != hdr->op) {
+ bt_dev_err(hdev, "Wrong op received %d expected %d",
+ wmt_evt->whdr.op, hdr->op);
+ err = -EIO;
+ goto err_free_skb;
+ }
+
+ switch (wmt_evt->whdr.op) {
+ case BTMTK_WMT_SEMAPHORE:
+ if (wmt_evt->whdr.flag == 2)
+ status = BTMTK_WMT_PATCH_UNDONE;
+ else
+ status = BTMTK_WMT_PATCH_DONE;
+ break;
+ case BTMTK_WMT_FUNC_CTRL:
+ wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
+ if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
+ status = BTMTK_WMT_ON_DONE;
+ else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
+ status = BTMTK_WMT_ON_PROGRESS;
+ else
+ status = BTMTK_WMT_ON_UNDONE;
+ break;
+ case BTMTK_WMT_PATCH_DWNLD:
+ if (wmt_evt->whdr.flag == 2)
+ status = BTMTK_WMT_PATCH_DONE;
+ else if (wmt_evt->whdr.flag == 1)
+ status = BTMTK_WMT_PATCH_PROGRESS;
+ else
+ status = BTMTK_WMT_PATCH_UNDONE;
+ break;
+ }
+
+ if (wmt_params->status)
+ *wmt_params->status = status;
+
+err_free_skb:
+ kfree_skb(data->evt_skb);
+ data->evt_skb = NULL;
+err_free_wc:
+ kfree(wc);
+ return err;
+}
+
+static int btusb_mtk_func_query(struct hci_dev *hdev)
+{
+ struct btmtk_hci_wmt_params wmt_params;
+ int status, err;
+ u8 param = 0;
+
+ /* Query whether the function is enabled */
+ wmt_params.op = BTMTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 4;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = &param;
+ wmt_params.status = &status;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to query function status (%d)", err);
+ return err;
+ }
+
+ return status;
+}
+
+static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
+{
+ struct hci_dev *hdev = data->hdev;
+ int pipe, err;
+ void *buf;
+
+ buf = kzalloc(4, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ put_unaligned_le32(val, buf);
+
+ pipe = usb_sndctrlpipe(data->udev, 0);
+ err = usb_control_msg(data->udev, pipe, 0x02,
+ 0x5E,
+ reg >> 16, reg & 0xffff,
+ buf, 4, USB_CTRL_SET_TIMEOUT);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
+ goto err_free_buf;
+ }
+
+err_free_buf:
+ kfree(buf);
+
+ return err;
+}
+
+static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
+{
+ struct hci_dev *hdev = data->hdev;
+ int pipe, err;
+ void *buf;
+
+ buf = kzalloc(4, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pipe = usb_rcvctrlpipe(data->udev, 0);
+ err = usb_control_msg(data->udev, pipe, 0x01,
+ 0xDE,
+ reg >> 16, reg & 0xffff,
+ buf, 4, USB_CTRL_SET_TIMEOUT);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
+ goto err_free_buf;
+ }
+
+ *val = get_unaligned_le32(buf);
+ bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
+
+err_free_buf:
+ kfree(buf);
+
+ return err;
+}
+
+static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
+{
+ int pipe, err, size = sizeof(u32);
+ void *buf;
+
+ buf = kzalloc(size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pipe = usb_rcvctrlpipe(data->udev, 0);
+ err = usb_control_msg(data->udev, pipe, 0x63,
+ USB_TYPE_VENDOR | USB_DIR_IN,
+ reg >> 16, reg & 0xffff,
+ buf, size, USB_CTRL_SET_TIMEOUT);
+ if (err < 0)
+ goto err_free_buf;
+
+ *val = get_unaligned_le32(buf);
+
+err_free_buf:
+ kfree(buf);
+
+ return err;
+}
+
+static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
+{
+ return btusb_mtk_reg_read(data, reg, id);
+}
+
+static int btusb_mtk_setup(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_params wmt_params;
+ ktime_t calltime, delta, rettime;
+ struct btmtk_tci_sleep tci_sleep;
+ unsigned long long duration;
+ struct sk_buff *skb;
+ const char *fwname;
+ int err, status;
+ u32 dev_id;
+ char fw_bin_name[64];
+ u32 fw_version = 0;
+ u8 param;
+
+ calltime = ktime_get();
+
+ err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to get device id (%d)", err);
+ return err;
+ }
+
+ if (!dev_id) {
+ err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to get device id (%d)", err);
+ return err;
+ }
+ err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to get fw version (%d)", err);
+ return err;
+ }
+ }
+
+ switch (dev_id) {
+ case 0x7663:
+ fwname = FIRMWARE_MT7663;
+ break;
+ case 0x7668:
+ fwname = FIRMWARE_MT7668;
+ break;
+ case 0x7922:
+ case 0x7961:
+ snprintf(fw_bin_name, sizeof(fw_bin_name),
+ "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
+ dev_id & 0xffff, (fw_version & 0xff) + 1);
+ err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
+ btusb_mtk_hci_wmt_sync);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
+ return err;
+ }
+
+ /* It's Device EndPoint Reset Option Register */
+ btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
+
+ /* Enable Bluetooth protocol */
+ param = 1;
+ wmt_params.op = BTMTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = &param;
+ wmt_params.status = NULL;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ hci_set_msft_opcode(hdev, 0xFD30);
+ hci_set_aosp_capable(hdev);
+ goto done;
+ default:
+ bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
+ dev_id);
+ return -ENODEV;
+ }
+
+ /* Query whether the firmware is already download */
+ wmt_params.op = BTMTK_WMT_SEMAPHORE;
+ wmt_params.flag = 1;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = &status;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
+ return err;
+ }
+
+ if (status == BTMTK_WMT_PATCH_DONE) {
+ bt_dev_info(hdev, "firmware already downloaded");
+ goto ignore_setup_fw;
+ }
+
+ /* Setup a firmware which the device definitely requires */
+ err = btmtk_setup_firmware(hdev, fwname,
+ btusb_mtk_hci_wmt_sync);
+ if (err < 0)
+ return err;
+
+ignore_setup_fw:
+ err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
+ status < 0 || status != BTMTK_WMT_ON_PROGRESS,
+ 2000, 5000000);
+ /* -ETIMEDOUT happens */
+ if (err < 0)
+ return err;
+
+ /* The other errors happen in btusb_mtk_func_query */
+ if (status < 0)
+ return status;
+
+ if (status == BTMTK_WMT_ON_DONE) {
+ bt_dev_info(hdev, "function already on");
+ goto ignore_func_on;
+ }
+
+ /* Enable Bluetooth protocol */
+ param = 1;
+ wmt_params.op = BTMTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = &param;
+ wmt_params.status = NULL;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ignore_func_on:
+ /* Apply the low power environment setup */
+ tci_sleep.mode = 0x5;
+ tci_sleep.duration = cpu_to_le16(0x640);
+ tci_sleep.host_duration = cpu_to_le16(0x640);
+ tci_sleep.host_wakeup_pin = 0;
+ tci_sleep.time_compensation = 0;
+
+ skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+done:
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ duration = (unsigned long long)ktime_to_ns(delta) >> 10;
+
+ bt_dev_info(hdev, "Device setup in %llu usecs", duration);
+
+ return 0;
+}
+
+static int btusb_mtk_shutdown(struct hci_dev *hdev)
+{
+ struct btmtk_hci_wmt_params wmt_params;
+ u8 param = 0;
+ int err;
+
+ /* Disable the device */
+ wmt_params.op = BTMTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = &param;
+ wmt_params.status = NULL;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static void btusb_mtk_cmd_timeout(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ u32 val;
+ int err, retry = 0;
+
+ /* It's MediaTek specific bluetooth reset mechanism via USB */
+ if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+ bt_dev_err(hdev, "last reset failed? Not resetting again");
+ return;
+ }
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return;
+
+ btusb_stop_traffic(data);
+ usb_kill_anchored_urbs(&data->tx_anchor);
+
+ /* It's Device EndPoint Reset Option Register */
+ bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
+ btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
+ btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
+
+ /* Reset the bluetooth chip via USB interface. */
+ btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
+ btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
+ btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
+ btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
+ btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
+ /* MT7921 need to delay 20ms between toggle reset bit */
+ msleep(20);
+ btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
+ btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
+
+ /* Poll the register until reset is completed */
+ do {
+ btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
+ if (val & MTK_BT_RST_DONE) {
+ bt_dev_dbg(hdev, "Bluetooth Reset Successfully");
+ break;
+ }
+
+ bt_dev_dbg(hdev, "Polling Bluetooth Reset CR");
+ retry++;
+ msleep(MTK_BT_RESET_WAIT_MS);
+ } while (retry < MTK_BT_RESET_NUM_TRIES);
+
+ btusb_mtk_id_get(data, 0x70010200, &val);
+ if (!val)
+ bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
+
+ usb_queue_reset_device(data->intf);
+
+ clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
+}
+
+static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
+
+ switch (handle) {
+ case 0xfc6f: /* Firmware dump from device */
+ /* When the firmware hangs, the device can no longer
+ * suspend and thus disable auto-suspend.
+ */
+ usb_disable_autosuspend(data->udev);
+ fallthrough;
+ case 0x05ff: /* Firmware debug logging 1 */
+ case 0x05fe: /* Firmware debug logging 2 */
+ return hci_recv_diag(hdev, skb);
+ }
+
+ return hci_recv_frame(hdev, skb);
+}
+
+#ifdef CONFIG_PM
+/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
+static int marvell_config_oob_wake(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct device *dev = &data->udev->dev;
+ u16 pin, gap, opcode;
+ int ret;
+ u8 cmd[5];
+
+ /* Move on if no wakeup pin specified */
+ if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
+ of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
+ return 0;
+
+ /* Vendor specific command to configure a GPIO as wake-up pin */
+ opcode = hci_opcode_pack(0x3F, 0x59);
+ cmd[0] = opcode & 0xFF;
+ cmd[1] = opcode >> 8;
+ cmd[2] = 2; /* length of parameters that follow */
+ cmd[3] = pin;
+ cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
+
+ skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
+ if (!skb) {
+ bt_dev_err(hdev, "%s: No memory", __func__);
+ return -ENOMEM;
+ }
+
+ skb_put_data(skb, cmd, sizeof(cmd));
+ hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
+
+ ret = btusb_send_frame(hdev, skb);
+ if (ret) {
+ bt_dev_err(hdev, "%s: configuration failed", __func__);
+ kfree_skb(skb);
+ return ret;
+ }
+
+ return 0;
+}
+#endif
+
+static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
+ const bdaddr_t *bdaddr)
+{
+ struct sk_buff *skb;
+ u8 buf[8];
+ long ret;
+
+ buf[0] = 0xfe;
+ buf[1] = sizeof(bdaddr_t);
+ memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
+
+ skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
+ ret);
+ return ret;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
+ const bdaddr_t *bdaddr)
+{
+ struct sk_buff *skb;
+ u8 buf[10];
+ long ret;
+
+ buf[0] = 0x01;
+ buf[1] = 0x01;
+ buf[2] = 0x00;
+ buf[3] = sizeof(bdaddr_t);
+ memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
+
+ skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ bt_dev_err(hdev, "Change address command failed (%ld)", ret);
+ return ret;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
+ const bdaddr_t *bdaddr)
+{
+ struct sk_buff *skb;
+ u8 buf[6];
+ long ret;
+
+ memcpy(buf, bdaddr, sizeof(bdaddr_t));
+
+ skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
+ HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ bt_dev_err(hdev, "Change address command failed (%ld)", ret);
+ return ret;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+
+#define QCA_DFU_PACKET_LEN 4096
+
+#define QCA_GET_TARGET_VERSION 0x09
+#define QCA_CHECK_STATUS 0x05
+#define QCA_DFU_DOWNLOAD 0x01
+
+#define QCA_SYSCFG_UPDATED 0x40
+#define QCA_PATCH_UPDATED 0x80
+#define QCA_DFU_TIMEOUT 3000
+#define QCA_FLAG_MULTI_NVM 0x80
+#define QCA_BT_RESET_WAIT_MS 100
+
+#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
+#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
+
+struct qca_version {
+ __le32 rom_version;
+ __le32 patch_version;
+ __le32 ram_version;
+ __u8 chip_id;
+ __u8 platform_id;
+ __le16 flag;
+ __u8 reserved[4];
+} __packed;
+
+struct qca_rampatch_version {
+ __le16 rom_version_high;
+ __le16 rom_version_low;
+ __le16 patch_version;
+} __packed;
+
+struct qca_device_info {
+ u32 rom_version;
+ u8 rampatch_hdr; /* length of header in rampatch */
+ u8 nvm_hdr; /* length of header in NVM */
+ u8 ver_offset; /* offset of version structure in rampatch */
+};
+
+static const struct qca_device_info qca_devices_table[] = {
+ { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
+ { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
+ { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
+ { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
+ { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
+ { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
+ { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
+ { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
+ { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
+ { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
+};
+
+static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
+ void *data, u16 size)
+{
+ int pipe, err;
+ u8 *buf;
+
+ buf = kmalloc(size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ /* Found some of USB hosts have IOT issues with ours so that we should
+ * not wait until HCI layer is ready.
+ */
+ pipe = usb_rcvctrlpipe(udev, 0);
+ err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
+ 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
+ if (err < 0) {
+ dev_err(&udev->dev, "Failed to access otp area (%d)", err);
+ goto done;
+ }
+
+ memcpy(data, buf, size);
+
+done:
+ kfree(buf);
+
+ return err;
+}
+
+static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
+ const struct firmware *firmware,
+ size_t hdr_size)
+{
+ struct btusb_data *btdata = hci_get_drvdata(hdev);
+ struct usb_device *udev = btdata->udev;
+ size_t count, size, sent = 0;
+ int pipe, len, err;
+ u8 *buf;
+
+ buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ count = firmware->size;
+
+ size = min_t(size_t, count, hdr_size);
+ memcpy(buf, firmware->data, size);
+
+ /* USB patches should go down to controller through USB path
+ * because binary format fits to go down through USB channel.
+ * USB control path is for patching headers and USB bulk is for
+ * patch body.
+ */
+ pipe = usb_sndctrlpipe(udev, 0);
+ err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
+ 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send headers (%d)", err);
+ goto done;
+ }
+
+ sent += size;
+ count -= size;
+
+ /* ep2 need time to switch from function acl to function dfu,
+ * so we add 20ms delay here.
+ */
+ msleep(20);
+
+ while (count) {
+ size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
+
+ memcpy(buf, firmware->data + sent, size);
+
+ pipe = usb_sndbulkpipe(udev, 0x02);
+ err = usb_bulk_msg(udev, pipe, buf, size, &len,
+ QCA_DFU_TIMEOUT);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
+ sent, firmware->size, err);
+ break;
+ }
+
+ if (size != len) {
+ bt_dev_err(hdev, "Failed to get bulk buffer");
+ err = -EILSEQ;
+ break;
+ }
+
+ sent += size;
+ count -= size;
+ }
+
+done:
+ kfree(buf);
+ return err;
+}
+
+static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
+ struct qca_version *ver,
+ const struct qca_device_info *info)
+{
+ struct qca_rampatch_version *rver;
+ const struct firmware *fw;
+ u32 ver_rom, ver_patch, rver_rom;
+ u16 rver_rom_low, rver_rom_high, rver_patch;
+ char fwname[64];
+ int err;
+
+ ver_rom = le32_to_cpu(ver->rom_version);
+ ver_patch = le32_to_cpu(ver->patch_version);
+
+ snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
+
+ err = request_firmware(&fw, fwname, &hdev->dev);
+ if (err) {
+ bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
+ fwname, err);
+ return err;
+ }
+
+ bt_dev_info(hdev, "using rampatch file: %s", fwname);
+
+ rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
+ rver_rom_low = le16_to_cpu(rver->rom_version_low);
+ rver_patch = le16_to_cpu(rver->patch_version);
+
+ if (ver_rom & ~0xffffU) {
+ rver_rom_high = le16_to_cpu(rver->rom_version_high);
+ rver_rom = le32_to_cpu(rver_rom_high << 16 | rver_rom_low);
+ } else {
+ rver_rom = rver_rom_low;
+ }
+
+ bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
+ "firmware rome 0x%x build 0x%x",
+ rver_rom, rver_patch, ver_rom, ver_patch);
+
+ if (rver_rom != ver_rom || rver_patch <= ver_patch) {
+ bt_dev_err(hdev, "rampatch file version did not match with firmware");
+ err = -EINVAL;
+ goto done;
+ }
+
+ err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
+
+done:
+ release_firmware(fw);
+
+ return err;
+}
+
+static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
+ const struct qca_version *ver)
+{
+ u32 rom_version = le32_to_cpu(ver->rom_version);
+ u16 flag = le16_to_cpu(ver->flag);
+
+ if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
+ /* The board_id should be split into two bytes
+ * The 1st byte is chip ID, and the 2nd byte is platform ID
+ * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
+ * we have several platforms, and platform IDs are continuously added
+ * Platform ID:
+ * 0x00 is for Mobile
+ * 0x01 is for X86
+ * 0x02 is for Automotive
+ * 0x03 is for Consumer electronic
+ */
+ u16 board_id = (ver->chip_id << 8) + ver->platform_id;
+ const char *variant;
+
+ switch (le32_to_cpu(ver->ram_version)) {
+ case WCN6855_2_0_RAM_VERSION_GF:
+ case WCN6855_2_1_RAM_VERSION_GF:
+ variant = "_gf";
+ break;
+ default:
+ variant = "";
+ break;
+ }
+
+ if (board_id == 0) {
+ snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
+ rom_version, variant);
+ } else {
+ snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
+ rom_version, variant, board_id);
+ }
+ } else {
+ snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
+ rom_version);
+ }
+
+}
+
+static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
+ struct qca_version *ver,
+ const struct qca_device_info *info)
+{
+ const struct firmware *fw;
+ char fwname[64];
+ int err;
+
+ btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
+
+ err = request_firmware(&fw, fwname, &hdev->dev);
+ if (err) {
+ bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
+ fwname, err);
+ return err;
+ }
+
+ bt_dev_info(hdev, "using NVM file: %s", fwname);
+
+ err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
+
+ release_firmware(fw);
+
+ return err;
+}
+
+/* identify the ROM version and check whether patches are needed */
+static bool btusb_qca_need_patch(struct usb_device *udev)
+{
+ struct qca_version ver;
+
+ if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
+ sizeof(ver)) < 0)
+ return false;
+ /* only low ROM versions need patches */
+ return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
+}
+
+static int btusb_setup_qca(struct hci_dev *hdev)
+{
+ struct btusb_data *btdata = hci_get_drvdata(hdev);
+ struct usb_device *udev = btdata->udev;
+ const struct qca_device_info *info = NULL;
+ struct qca_version ver;
+ u32 ver_rom;
+ u8 status;
+ int i, err;
+
+ err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
+ sizeof(ver));
+ if (err < 0)
+ return err;
+
+ ver_rom = le32_to_cpu(ver.rom_version);
+
+ for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
+ if (ver_rom == qca_devices_table[i].rom_version)
+ info = &qca_devices_table[i];
+ }
+ if (!info) {
+ /* If the rom_version is not matched in the qca_devices_table
+ * and the high ROM version is not zero, we assume this chip no
+ * need to load the rampatch and nvm.
+ */
+ if (ver_rom & ~0xffffU)
+ return 0;
+
+ bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
+ return -ENODEV;
+ }
+
+ err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
+ sizeof(status));
+ if (err < 0)
+ return err;
+
+ if (!(status & QCA_PATCH_UPDATED)) {
+ err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
+ if (err < 0)
+ return err;
+ }
+
+ err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
+ sizeof(ver));
+ if (err < 0)
+ return err;
+
+ if (!(status & QCA_SYSCFG_UPDATED)) {
+ err = btusb_setup_qca_load_nvm(hdev, &ver, info);
+ if (err < 0)
+ return err;
+
+ /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
+ * wait ~100ms for reset Done then go ahead, otherwise, it maybe
+ * cause potential enable failure.
+ */
+ if (info->rom_version >= 0x00130201)
+ msleep(QCA_BT_RESET_WAIT_MS);
+ }
+
+ /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
+ * work with the likes of HSP/HFP mSBC.
+ */
+ set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
+
+ return 0;
+}
+
+static inline int __set_diag_interface(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct usb_interface *intf = data->diag;
+ int i;
+
+ if (!data->diag)
+ return -ENODEV;
+
+ data->diag_tx_ep = NULL;
+ data->diag_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 (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
+ data->diag_tx_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
+ data->diag_rx_ep = ep_desc;
+ continue;
+ }
+ }
+
+ if (!data->diag_tx_ep || !data->diag_rx_ep) {
+ bt_dev_err(hdev, "invalid diagnostic descriptors");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct sk_buff *skb;
+ struct urb *urb;
+ unsigned int pipe;
+
+ if (!data->diag_tx_ep)
+ return ERR_PTR(-ENODEV);
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return ERR_PTR(-ENOMEM);
+
+ skb = bt_skb_alloc(2, GFP_KERNEL);
+ if (!skb) {
+ usb_free_urb(urb);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ skb_put_u8(skb, 0xf0);
+ skb_put_u8(skb, enable);
+
+ pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
+
+ usb_fill_bulk_urb(urb, data->udev, pipe,
+ skb->data, skb->len, btusb_tx_complete, skb);
+
+ skb->dev = (void *)hdev;
+
+ return urb;
+}
+
+static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+
+ if (!data->diag)
+ return -ENODEV;
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return -ENETDOWN;
+
+ urb = alloc_diag_urb(hdev, enable);
+ if (IS_ERR(urb))
+ return PTR_ERR(urb);
+
+ return submit_or_queue_tx_urb(hdev, urb);
+}
+
+#ifdef CONFIG_PM
+static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
+{
+ struct btusb_data *data = priv;
+
+ pm_wakeup_event(&data->udev->dev, 0);
+ pm_system_wakeup();
+
+ /* Disable only if not already disabled (keep it balanced) */
+ if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
+ disable_irq_nosync(irq);
+ disable_irq_wake(irq);
+ }
+ return IRQ_HANDLED;
+}
+
+static const struct of_device_id btusb_match_table[] = {
+ { .compatible = "usb1286,204e" },
+ { .compatible = "usbcf3,e300" }, /* QCA6174A */
+ { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
+ { }
+};
+MODULE_DEVICE_TABLE(of, btusb_match_table);
+
+/* Use an oob wakeup pin? */
+static int btusb_config_oob_wake(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct device *dev = &data->udev->dev;
+ int irq, ret;
+
+ clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
+
+ if (!of_match_device(btusb_match_table, dev))
+ return 0;
+
+ /* Move on if no IRQ specified */
+ irq = of_irq_get_byname(dev->of_node, "wakeup");
+ if (irq <= 0) {
+ bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
+ return 0;
+ }
+
+ irq_set_status_flags(irq, IRQ_NOAUTOEN);
+ ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
+ 0, "OOB Wake-on-BT", data);
+ if (ret) {
+ bt_dev_err(hdev, "%s: IRQ request failed", __func__);
+ return ret;
+ }
+
+ ret = device_init_wakeup(dev, true);
+ if (ret) {
+ bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
+ return ret;
+ }
+
+ data->oob_wake_irq = irq;
+ bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
+ return 0;
+}
+#endif
+
+static void btusb_check_needs_reset_resume(struct usb_interface *intf)
+{
+ if (dmi_check_system(btusb_needs_reset_resume_table))
+ interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
+}
+
+static bool btusb_wakeup(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+
+ return device_may_wakeup(&data->udev->dev);
+}
+
+static int btusb_shutdown_qca(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "HCI reset during shutdown failed");
+ return PTR_ERR(skb);
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct btusb_data *data = file->private_data;
+ char buf[3];
+
+ buf[0] = data->poll_sync ? 'Y' : 'N';
+ buf[1] = '\n';
+ buf[2] = '\0';
+ return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t force_poll_sync_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct btusb_data *data = file->private_data;
+ bool enable;
+ int err;
+
+ err = kstrtobool_from_user(user_buf, count, &enable);
+ if (err)
+ return err;
+
+ /* Only allow changes while the adapter is down */
+ if (test_bit(HCI_UP, &data->hdev->flags))
+ return -EPERM;
+
+ if (data->poll_sync == enable)
+ return -EALREADY;
+
+ data->poll_sync = enable;
+
+ return count;
+}
+
+static const struct file_operations force_poll_sync_fops = {
+ .open = simple_open,
+ .read = force_poll_sync_read,
+ .write = force_poll_sync_write,
+ .llseek = default_llseek,
+};
+
+static int btusb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_endpoint_descriptor *ep_desc;
+ struct gpio_desc *reset_gpio;
+ struct btusb_data *data;
+ struct hci_dev *hdev;
+ unsigned ifnum_base;
+ int i, err, priv_size;
+
+ BT_DBG("intf %p id %p", intf, id);
+
+ /* interface numbers are hardcoded in the spec */
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
+ if (!(id->driver_info & BTUSB_IFNUM_2))
+ return -ENODEV;
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
+ return -ENODEV;
+ }
+
+ ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
+
+ if (!id->driver_info) {
+ const struct usb_device_id *match;
+
+ match = usb_match_id(intf, blacklist_table);
+ if (match)
+ id = match;
+ }
+
+ if (id->driver_info == BTUSB_IGNORE)
+ return -ENODEV;
+
+ if (id->driver_info & BTUSB_ATH3012) {
+ struct usb_device *udev = interface_to_usbdev(intf);
+
+ /* Old firmware would otherwise let ath3k driver load
+ * patch and sysconfig files
+ */
+ if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
+ !btusb_qca_need_patch(udev))
+ return -ENODEV;
+ }
+
+ data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+ ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+ if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
+ data->intr_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
+ data->bulk_tx_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
+ data->bulk_rx_ep = ep_desc;
+ continue;
+ }
+ }
+
+ if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
+ return -ENODEV;
+
+ if (id->driver_info & BTUSB_AMP) {
+ data->cmdreq_type = USB_TYPE_CLASS | 0x01;
+ data->cmdreq = 0x2b;
+ } else {
+ data->cmdreq_type = USB_TYPE_CLASS;
+ data->cmdreq = 0x00;
+ }
+
+ data->udev = interface_to_usbdev(intf);
+ data->intf = intf;
+
+ INIT_WORK(&data->work, btusb_work);
+ INIT_WORK(&data->waker, btusb_waker);
+ INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
+
+ skb_queue_head_init(&data->acl_q);
+
+ init_usb_anchor(&data->deferred);
+ init_usb_anchor(&data->tx_anchor);
+ spin_lock_init(&data->txlock);
+
+ init_usb_anchor(&data->intr_anchor);
+ init_usb_anchor(&data->bulk_anchor);
+ init_usb_anchor(&data->isoc_anchor);
+ init_usb_anchor(&data->diag_anchor);
+ init_usb_anchor(&data->ctrl_anchor);
+ spin_lock_init(&data->rxlock);
+
+ priv_size = 0;
+
+ data->recv_event = hci_recv_frame;
+ data->recv_bulk = btusb_recv_bulk;
+
+ if (id->driver_info & BTUSB_INTEL_COMBINED) {
+ /* Allocate extra space for Intel device */
+ priv_size += sizeof(struct btintel_data);
+
+ /* Override the rx handlers */
+ data->recv_event = btusb_recv_event_intel;
+ data->recv_bulk = btusb_recv_bulk_intel;
+ }
+
+ data->recv_acl = hci_recv_frame;
+
+ hdev = hci_alloc_dev_priv(priv_size);
+ if (!hdev)
+ return -ENOMEM;
+
+ hdev->bus = HCI_USB;
+ hci_set_drvdata(hdev, data);
+
+ if (id->driver_info & BTUSB_AMP)
+ hdev->dev_type = HCI_AMP;
+ else
+ hdev->dev_type = HCI_PRIMARY;
+
+ data->hdev = hdev;
+
+ SET_HCIDEV_DEV(hdev, &intf->dev);
+
+ reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(reset_gpio)) {
+ err = PTR_ERR(reset_gpio);
+ goto out_free_dev;
+ } else if (reset_gpio) {
+ data->reset_gpio = reset_gpio;
+ }
+
+ hdev->open = btusb_open;
+ hdev->close = btusb_close;
+ hdev->flush = btusb_flush;
+ hdev->send = btusb_send_frame;
+ hdev->notify = btusb_notify;
+ hdev->wakeup = btusb_wakeup;
+
+#ifdef CONFIG_PM
+ err = btusb_config_oob_wake(hdev);
+ if (err)
+ goto out_free_dev;
+
+ /* Marvell devices may need a specific chip configuration */
+ if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
+ err = marvell_config_oob_wake(hdev);
+ if (err)
+ goto out_free_dev;
+ }
+#endif
+ if (id->driver_info & BTUSB_CW6622)
+ set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
+
+ if (id->driver_info & BTUSB_BCM2045)
+ set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
+
+ if (id->driver_info & BTUSB_BCM92035)
+ hdev->setup = btusb_setup_bcm92035;
+
+ if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
+ (id->driver_info & BTUSB_BCM_PATCHRAM)) {
+ hdev->manufacturer = 15;
+ hdev->setup = btbcm_setup_patchram;
+ hdev->set_diag = btusb_bcm_set_diag;
+ hdev->set_bdaddr = btbcm_set_bdaddr;
+
+ /* Broadcom LM_DIAG Interface numbers are hardcoded */
+ data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
+ }
+
+ if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
+ (id->driver_info & BTUSB_BCM_APPLE)) {
+ hdev->manufacturer = 15;
+ hdev->setup = btbcm_setup_apple;
+ hdev->set_diag = btusb_bcm_set_diag;
+
+ /* Broadcom LM_DIAG Interface numbers are hardcoded */
+ data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
+ }
+
+ /* Combined Intel Device setup to support multiple setup routine */
+ if (id->driver_info & BTUSB_INTEL_COMBINED) {
+ err = btintel_configure_setup(hdev);
+ if (err)
+ goto out_free_dev;
+
+ /* Transport specific configuration */
+ hdev->send = btusb_send_frame_intel;
+ hdev->cmd_timeout = btusb_intel_cmd_timeout;
+
+ if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
+ btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
+
+ if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
+ btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
+
+ if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
+ btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
+ }
+
+ if (id->driver_info & BTUSB_MARVELL)
+ hdev->set_bdaddr = btusb_set_bdaddr_marvell;
+
+ if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
+ (id->driver_info & BTUSB_MEDIATEK)) {
+ hdev->setup = btusb_mtk_setup;
+ hdev->shutdown = btusb_mtk_shutdown;
+ hdev->manufacturer = 70;
+ hdev->cmd_timeout = btusb_mtk_cmd_timeout;
+ hdev->set_bdaddr = btmtk_set_bdaddr;
+ set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+ data->recv_acl = btusb_recv_acl_mtk;
+ }
+
+ if (id->driver_info & BTUSB_SWAVE) {
+ set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
+ set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
+ }
+
+ if (id->driver_info & BTUSB_INTEL_BOOT) {
+ hdev->manufacturer = 2;
+ set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
+ }
+
+ if (id->driver_info & BTUSB_ATH3012) {
+ data->setup_on_usb = btusb_setup_qca;
+ hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+ set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
+ }
+
+ if (id->driver_info & BTUSB_QCA_ROME) {
+ data->setup_on_usb = btusb_setup_qca;
+ hdev->shutdown = btusb_shutdown_qca;
+ hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
+ hdev->cmd_timeout = btusb_qca_cmd_timeout;
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+ btusb_check_needs_reset_resume(intf);
+ }
+
+ if (id->driver_info & BTUSB_QCA_WCN6855) {
+ data->setup_on_usb = btusb_setup_qca;
+ hdev->shutdown = btusb_shutdown_qca;
+ hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
+ hdev->cmd_timeout = btusb_qca_cmd_timeout;
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+ hci_set_msft_opcode(hdev, 0xFD70);
+ }
+
+ if (id->driver_info & BTUSB_AMP) {
+ /* AMP controllers do not support SCO packets */
+ data->isoc = NULL;
+ } else {
+ /* Interface orders are hardcoded in the specification */
+ data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
+ data->isoc_ifnum = ifnum_base + 1;
+ }
+
+ if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
+ (id->driver_info & BTUSB_REALTEK)) {
+ hdev->setup = btrtl_setup_realtek;
+ hdev->shutdown = btrtl_shutdown_realtek;
+ hdev->cmd_timeout = btusb_rtl_cmd_timeout;
+
+ /* Realtek devices need to set remote wakeup on auto-suspend */
+ set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
+ set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
+ }
+
+ if (id->driver_info & BTUSB_ACTIONS_SEMI) {
+ /* Support is advertised, but not implemented */
+ set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
+ set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
+ set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
+ set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
+ }
+
+ if (!reset)
+ set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
+
+ if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
+ if (!disable_scofix)
+ set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
+ }
+
+ if (id->driver_info & BTUSB_BROKEN_ISOC)
+ data->isoc = NULL;
+
+ if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
+ set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
+
+ if (id->driver_info & BTUSB_VALID_LE_STATES)
+ set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
+
+ if (id->driver_info & BTUSB_DIGIANSWER) {
+ data->cmdreq_type = USB_TYPE_VENDOR;
+ set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
+ }
+
+ if (id->driver_info & BTUSB_CSR) {
+ struct usb_device *udev = data->udev;
+ u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
+
+ /* Old firmware would otherwise execute USB reset */
+ if (bcdDevice < 0x117)
+ set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
+
+ /* This must be set first in case we disable it for fakes */
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+
+ /* Fake CSR devices with broken commands */
+ if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
+ le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
+ hdev->setup = btusb_setup_csr;
+ }
+
+ if (id->driver_info & BTUSB_SNIFFER) {
+ struct usb_device *udev = data->udev;
+
+ /* New sniffer firmware has crippled HCI interface */
+ if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
+ set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
+ }
+
+ if (id->driver_info & BTUSB_INTEL_BOOT) {
+ /* A bug in the bootloader causes that interrupt interface is
+ * only enabled after receiving SetInterface(0, AltSetting=0).
+ */
+ err = usb_set_interface(data->udev, 0, 0);
+ if (err < 0) {
+ BT_ERR("failed to set interface 0, alt 0 %d", err);
+ goto out_free_dev;
+ }
+ }
+
+ if (data->isoc) {
+ err = usb_driver_claim_interface(&btusb_driver,
+ data->isoc, data);
+ if (err < 0)
+ goto out_free_dev;
+ }
+
+ if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
+ if (!usb_driver_claim_interface(&btusb_driver,
+ data->diag, data))
+ __set_diag_interface(hdev);
+ else
+ data->diag = NULL;
+ }
+
+ if (enable_autosuspend)
+ usb_enable_autosuspend(data->udev);
+
+ err = hci_register_dev(hdev);
+ if (err < 0)
+ goto out_free_dev;
+
+ usb_set_intfdata(intf, data);
+
+ debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
+ &force_poll_sync_fops);
+
+ return 0;
+
+out_free_dev:
+ if (data->reset_gpio)
+ gpiod_put(data->reset_gpio);
+ hci_free_dev(hdev);
+ return err;
+}
+
+static void btusb_disconnect(struct usb_interface *intf)
+{
+ struct btusb_data *data = usb_get_intfdata(intf);
+ struct hci_dev *hdev;
+
+ BT_DBG("intf %p", intf);
+
+ if (!data)
+ return;
+
+ hdev = data->hdev;
+ usb_set_intfdata(data->intf, NULL);
+
+ if (data->isoc)
+ usb_set_intfdata(data->isoc, NULL);
+
+ if (data->diag)
+ usb_set_intfdata(data->diag, NULL);
+
+ hci_unregister_dev(hdev);
+
+ if (intf == data->intf) {
+ if (data->isoc)
+ usb_driver_release_interface(&btusb_driver, data->isoc);
+ if (data->diag)
+ usb_driver_release_interface(&btusb_driver, data->diag);
+ } else if (intf == data->isoc) {
+ if (data->diag)
+ usb_driver_release_interface(&btusb_driver, data->diag);
+ usb_driver_release_interface(&btusb_driver, data->intf);
+ } else if (intf == data->diag) {
+ usb_driver_release_interface(&btusb_driver, data->intf);
+ if (data->isoc)
+ usb_driver_release_interface(&btusb_driver, data->isoc);
+ }
+
+ if (data->oob_wake_irq)
+ device_init_wakeup(&data->udev->dev, false);
+
+ if (data->reset_gpio)
+ gpiod_put(data->reset_gpio);
+
+ hci_free_dev(hdev);
+}
+
+#ifdef CONFIG_PM
+static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct btusb_data *data = usb_get_intfdata(intf);
+
+ BT_DBG("intf %p", intf);
+
+ if (data->suspend_count++)
+ return 0;
+
+ spin_lock_irq(&data->txlock);
+ if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
+ set_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+ } else {
+ spin_unlock_irq(&data->txlock);
+ data->suspend_count--;
+ return -EBUSY;
+ }
+
+ cancel_work_sync(&data->work);
+
+ btusb_stop_traffic(data);
+ usb_kill_anchored_urbs(&data->tx_anchor);
+
+ if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
+ set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
+ enable_irq_wake(data->oob_wake_irq);
+ enable_irq(data->oob_wake_irq);
+ }
+
+ /* For global suspend, Realtek devices lose the loaded fw
+ * in them. But for autosuspend, firmware should remain.
+ * Actually, it depends on whether the usb host sends
+ * set feature (enable wakeup) or not.
+ */
+ if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
+ if (PMSG_IS_AUTO(message) &&
+ device_can_wakeup(&data->udev->dev))
+ data->udev->do_remote_wakeup = 1;
+ else if (!PMSG_IS_AUTO(message) &&
+ !device_may_wakeup(&data->udev->dev)) {
+ data->udev->do_remote_wakeup = 0;
+ data->udev->reset_resume = 1;
+ }
+ }
+
+ return 0;
+}
+
+static void play_deferred(struct btusb_data *data)
+{
+ struct urb *urb;
+ int err;
+
+ while ((urb = usb_get_from_anchor(&data->deferred))) {
+ usb_anchor_urb(urb, &data->tx_anchor);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p submission failed (%d)",
+ data->hdev->name, urb, -err);
+ kfree(urb->setup_packet);
+ usb_unanchor_urb(urb);
+ usb_free_urb(urb);
+ break;
+ }
+
+ data->tx_in_flight++;
+ usb_free_urb(urb);
+ }
+
+ /* Cleanup the rest deferred urbs. */
+ while ((urb = usb_get_from_anchor(&data->deferred))) {
+ kfree(urb->setup_packet);
+ usb_free_urb(urb);
+ }
+}
+
+static int btusb_resume(struct usb_interface *intf)
+{
+ struct btusb_data *data = usb_get_intfdata(intf);
+ struct hci_dev *hdev = data->hdev;
+ int err = 0;
+
+ BT_DBG("intf %p", intf);
+
+ if (--data->suspend_count)
+ return 0;
+
+ /* Disable only if not already disabled (keep it balanced) */
+ if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
+ disable_irq(data->oob_wake_irq);
+ disable_irq_wake(data->oob_wake_irq);
+ }
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
+ err = btusb_submit_intr_urb(hdev, GFP_NOIO);
+ if (err < 0) {
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+ goto failed;
+ }
+ }
+
+ if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
+ err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
+ if (err < 0) {
+ clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+ goto failed;
+ }
+
+ btusb_submit_bulk_urb(hdev, GFP_NOIO);
+ }
+
+ if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
+ if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ else
+ btusb_submit_isoc_urb(hdev, GFP_NOIO);
+ }
+
+ spin_lock_irq(&data->txlock);
+ play_deferred(data);
+ clear_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+ schedule_work(&data->work);
+
+ return 0;
+
+failed:
+ usb_scuttle_anchored_urbs(&data->deferred);
+done:
+ spin_lock_irq(&data->txlock);
+ clear_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+
+ return err;
+}
+#endif
+
+static struct usb_driver btusb_driver = {
+ .name = "btusb",
+ .probe = btusb_probe,
+ .disconnect = btusb_disconnect,
+#ifdef CONFIG_PM
+ .suspend = btusb_suspend,
+ .resume = btusb_resume,
+#endif
+ .id_table = btusb_table,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(btusb_driver);
+
+module_param(disable_scofix, bool, 0644);
+MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
+
+module_param(force_scofix, bool, 0644);
+MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
+
+module_param(enable_autosuspend, bool, 0644);
+MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
+
+module_param(reset, bool, 0644);
+MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 07:49:46 +0000