diff options
author | Jimmy Stelzer | 2020-05-16 21:22:53 -0300 |
---|---|---|
committer | Jimmy Stelzer | 2020-05-16 21:22:53 -0300 |
commit | c3b4ea0aaac057b4de44eac6725372638a4c7051 (patch) | |
tree | a328e7ac225be4348f55a6c4fb88a13ff00021f9 | |
download | aur-c3b4ea0aaac057b4de44eac6725372638a4c7051.tar.gz |
Create btusb version 5.6.13-zen1.
-rw-r--r-- | .SRCINFO | 27 | ||||
-rw-r--r-- | .gitignore | 4 | ||||
-rw-r--r-- | Makefile | 7 | ||||
-rw-r--r-- | PKGBUILD | 42 | ||||
-rw-r--r-- | README.md | 9 | ||||
-rw-r--r-- | btbcm.h | 119 | ||||
-rw-r--r-- | btintel.h | 189 | ||||
-rw-r--r-- | btrtl.h | 101 | ||||
-rw-r--r-- | btusb-csr.install | 21 | ||||
-rw-r--r-- | btusb.c | 4150 | ||||
-rw-r--r-- | btusb.patch | 26 |
11 files changed, 4695 insertions, 0 deletions
diff --git a/.SRCINFO b/.SRCINFO new file mode 100644 index 000000000000..c93eb06b78dc --- /dev/null +++ b/.SRCINFO @@ -0,0 +1,27 @@ +pkgbase = btusb-csr-0x8891 + pkgdesc = patch btusb so it works on CSR clone devices with id 0x8891 + pkgver = 5.6.13.zen1 + pkgrel = 1 + url = https://bugzilla.kernel.org/show_bug.cgi?id=60824 + install = btusb-csr.install + arch = i686 + arch = x86_64 + license = GPL + depends = linux-headers + source = Makefile + source = btusb.patch + source = btusb-csr.install + source = btusb.c::https://github.com/zen-kernel/zen-kernel/blob/v5.6.13-zen1/drivers/bluetooth/bfusb.c + source = btintel.h::https://github.com/zen-kernel/zen-kernel/blob/v5.6.13-zen1/drivers/bluetooth/btintel.h + source = btbcm.h::https://github.com/zen-kernel/zen-kernel/blob/v5.6.13-zen1/drivers/bluetooth/btbcm.h + source = btrtl.h::https://github.com/zen-kernel/zen-kernel/blob/v5.6.13-zen1/drivers/bluetooth/btrtl.h + sha512sums = b2ae4e73cae88376ada4cdf3cd0edcedc6c5a2b13f3a9cf1edd65b0c3a97705302a08ca8e189fe7c07ea077223b3ca3f9afa8c051ac2f1f824e450dabb413f06 + sha512sums = b743173b2466a88502fd59920fc88cf1a1fa64ffe21d6821afdad569570161ee2c6b17888cf98f6e04ae0542ead02f0a29cc1b59f93dbce0c794b61ae60740ab + sha512sums = 8c13b46a9da98852ddbced9005ea911a1347a1db493c8f6eac08491d3e25d277c97135bcb1941fbd795eb899a406e07d857c3db8b52c70fb92d2093196e15c1b + sha512sums = ff192171996c031b1bc03263173a9d78c425d4263ca3100b448bead71c8f67c74ca53add0e3d083a52409a91a17e6676025ff940fe252eb6ed1ba80c2300c04f + sha512sums = 16ce8e77b598ca4dc5dbba805046e066698a5157fee73b0425a4bd51e1b063a745a3aa3cc169abcacb249d3bd93901a059f3a71dc009f3ca93af2e542400a35b + sha512sums = b526d42413a1621bbd6360ada6e0623c74c7cb31c0e82d1ac6690b782ea2c9b496bb6e650fe4a66fa16bb405ecb3f14233f7c3e68093f9939a21f61c2f082ea0 + sha512sums = 3458820f64b426444406356c56d1845c6e077d829fa2cdb6804befda657b7ae495d39da11b6ba6202fb147a64e161e74a48fcb6d7a7ef19bc122da12c7c47ebf + +pkgname = btusb-csr-0x8891 + diff --git a/.gitignore b/.gitignore new file mode 100644 index 000000000000..85faee9a6673 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +*.swp +src +pkg +*.pkg.tar.xz diff --git a/Makefile b/Makefile new file mode 100644 index 000000000000..6e7d303e574b --- /dev/null +++ b/Makefile @@ -0,0 +1,7 @@ +obj-m += btusb.o + +all: + $(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules + +clean: + $(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean diff --git a/PKGBUILD b/PKGBUILD new file mode 100644 index 000000000000..c37c04635dcb --- /dev/null +++ b/PKGBUILD @@ -0,0 +1,42 @@ +# Maintainer: Jimmy Stelzer jimmy.stelzer@gmail.com + +pkgname=btusb-csr-0x8891 +pkgver=5.6.13.zen1 +pkgrel=1 +pkgdesc="patch btusb so it works on CSR clone devices with id 0x8891" +url=https://bugzilla.kernel.org/show_bug.cgi?id=60824 +arch=('i686' 'x86_64') +license=('GPL') +depends=('linux-headers') + +source=("Makefile" + "btusb.patch" + "btusb-csr.install" + "btusb.c::https://github.com/zen-kernel/zen-kernel/blob/v5.6.13-zen1/drivers/bluetooth/bfusb.c" + "btintel.h::https://github.com/zen-kernel/zen-kernel/blob/v5.6.13-zen1/drivers/bluetooth/btintel.h" + "btbcm.h::https://github.com/zen-kernel/zen-kernel/blob/v5.6.13-zen1/drivers/bluetooth/btbcm.h" + "btrtl.h::https://github.com/zen-kernel/zen-kernel/blob/v5.6.13-zen1/drivers/bluetooth/btrtl.h") + +sha512sums=('b2ae4e73cae88376ada4cdf3cd0edcedc6c5a2b13f3a9cf1edd65b0c3a97705302a08ca8e189fe7c07ea077223b3ca3f9afa8c051ac2f1f824e450dabb413f06' + 'b743173b2466a88502fd59920fc88cf1a1fa64ffe21d6821afdad569570161ee2c6b17888cf98f6e04ae0542ead02f0a29cc1b59f93dbce0c794b61ae60740ab' + '8c13b46a9da98852ddbced9005ea911a1347a1db493c8f6eac08491d3e25d277c97135bcb1941fbd795eb899a406e07d857c3db8b52c70fb92d2093196e15c1b' + 'ff192171996c031b1bc03263173a9d78c425d4263ca3100b448bead71c8f67c74ca53add0e3d083a52409a91a17e6676025ff940fe252eb6ed1ba80c2300c04f' + '16ce8e77b598ca4dc5dbba805046e066698a5157fee73b0425a4bd51e1b063a745a3aa3cc169abcacb249d3bd93901a059f3a71dc009f3ca93af2e542400a35b' + 'b526d42413a1621bbd6360ada6e0623c74c7cb31c0e82d1ac6690b782ea2c9b496bb6e650fe4a66fa16bb405ecb3f14233f7c3e68093f9939a21f61c2f082ea0' + '3458820f64b426444406356c56d1845c6e077d829fa2cdb6804befda657b7ae495d39da11b6ba6202fb147a64e161e74a48fcb6d7a7ef19bc122da12c7c47ebf') + +install="btusb-csr.install" + +prepare() { + \cp --remove-destination $(readlink btusb.c) btusb.c + patch -p1 < btusb.patch +} + +build() { + make +} + +package() { + install -Dm644 btusb.ko "$pkgdir/usr/lib/modules/$(uname -r)/updates/btusb.ko" +} + diff --git a/README.md b/README.md new file mode 100644 index 000000000000..36f8b4ffb385 --- /dev/null +++ b/README.md @@ -0,0 +1,9 @@ +# btusb-csr-0x8891 + +This is an [AUR package][1] that patches the kernel bluetooth module (`btusb.c`) in order to identify cloned CSR device with id 0x8891. + +### maintenance + +If the AUR package doesn't work please flag or comment on the [package page][1]. + +[1]: https://aur.archlinux.org/packages/btusb-csr-0x8891/ "AUR package" diff --git a/btbcm.h b/btbcm.h new file mode 100644 index 000000000000..014ef847a486 --- /dev/null +++ b/btbcm.h @@ -0,0 +1,119 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * + * Bluetooth support for Broadcom devices + * + * Copyright (C) 2015 Intel Corporation + */ + +#define BCM_UART_CLOCK_48MHZ 0x01 +#define BCM_UART_CLOCK_24MHZ 0x02 + +struct bcm_update_uart_baud_rate { + __le16 zero; + __le32 baud_rate; +} __packed; + +struct bcm_write_uart_clock_setting { + __u8 type; +} __packed; + +struct bcm_set_sleep_mode { + __u8 sleep_mode; + __u8 idle_host; + __u8 idle_dev; + __u8 bt_wake_active; + __u8 host_wake_active; + __u8 allow_host_sleep; + __u8 combine_modes; + __u8 tristate_control; + __u8 usb_auto_sleep; + __u8 usb_resume_timeout; + __u8 break_to_host; + __u8 pulsed_host_wake; +} __packed; + +struct bcm_set_pcm_int_params { + __u8 routing; + __u8 rate; + __u8 frame_sync; + __u8 sync_mode; + __u8 clock_mode; +} __packed; + +struct bcm_set_pcm_format_params { + __u8 lsb_first; + __u8 fill_value; + __u8 fill_method; + __u8 fill_num; + __u8 right_justify; +} __packed; + +#if IS_ENABLED(CONFIG_BT_BCM) + +int btbcm_check_bdaddr(struct hci_dev *hdev); +int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr); +int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw); +int btbcm_read_pcm_int_params(struct hci_dev *hdev, + struct bcm_set_pcm_int_params *params); +int btbcm_write_pcm_int_params(struct hci_dev *hdev, + const struct bcm_set_pcm_int_params *params); + +int btbcm_setup_patchram(struct hci_dev *hdev); +int btbcm_setup_apple(struct hci_dev *hdev); + +int btbcm_initialize(struct hci_dev *hdev, char *fw_name, size_t len, + bool reinit); +int btbcm_finalize(struct hci_dev *hdev); + +#else + +static inline int btbcm_check_bdaddr(struct hci_dev *hdev) +{ + return -EOPNOTSUPP; +} + +static inline int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) +{ + return -EOPNOTSUPP; +} + +static inline int btbcm_read_pcm_int_params(struct hci_dev *hdev, + struct bcm_set_pcm_int_params *params) +{ + return -EOPNOTSUPP; +} + +static inline int btbcm_write_pcm_int_params(struct hci_dev *hdev, + const struct bcm_set_pcm_int_params *params) +{ + return -EOPNOTSUPP; +} + +static inline int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw) +{ + return -EOPNOTSUPP; +} + +static inline int btbcm_setup_patchram(struct hci_dev *hdev) +{ + return 0; +} + +static inline int btbcm_setup_apple(struct hci_dev *hdev) +{ + return 0; +} + +static inline int btbcm_initialize(struct hci_dev *hdev, char *fw_name, + size_t len, bool reinit) +{ + return 0; +} + +static inline int btbcm_finalize(struct hci_dev *hdev) +{ + return 0; +} + +#endif diff --git a/btintel.h b/btintel.h new file mode 100644 index 000000000000..a69ea8a87b9b --- /dev/null +++ b/btintel.h @@ -0,0 +1,189 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * + * Bluetooth support for Intel devices + * + * Copyright (C) 2015 Intel Corporation + */ + +struct intel_version { + u8 status; + u8 hw_platform; + u8 hw_variant; + u8 hw_revision; + u8 fw_variant; + u8 fw_revision; + u8 fw_build_num; + u8 fw_build_ww; + u8 fw_build_yy; + u8 fw_patch_num; +} __packed; + +struct intel_boot_params { + __u8 status; + __u8 otp_format; + __u8 otp_content; + __u8 otp_patch; + __le16 dev_revid; + __u8 secure_boot; + __u8 key_from_hdr; + __u8 key_type; + __u8 otp_lock; + __u8 api_lock; + __u8 debug_lock; + bdaddr_t otp_bdaddr; + __u8 min_fw_build_nn; + __u8 min_fw_build_cw; + __u8 min_fw_build_yy; + __u8 limited_cce; + __u8 unlocked_state; +} __packed; + +struct intel_bootup { + __u8 zero; + __u8 num_cmds; + __u8 source; + __u8 reset_type; + __u8 reset_reason; + __u8 ddc_status; +} __packed; + +struct intel_secure_send_result { + __u8 result; + __le16 opcode; + __u8 status; +} __packed; + +struct intel_reset { + __u8 reset_type; + __u8 patch_enable; + __u8 ddc_reload; + __u8 boot_option; + __le32 boot_param; +} __packed; + +#if IS_ENABLED(CONFIG_BT_INTEL) + +int btintel_check_bdaddr(struct hci_dev *hdev); +int btintel_enter_mfg(struct hci_dev *hdev); +int btintel_exit_mfg(struct hci_dev *hdev, bool reset, bool patched); +int btintel_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr); +int btintel_set_diag(struct hci_dev *hdev, bool enable); +int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable); +void btintel_hw_error(struct hci_dev *hdev, u8 code); + +void btintel_version_info(struct hci_dev *hdev, struct intel_version *ver); +int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type, u32 plen, + const void *param); +int btintel_load_ddc_config(struct hci_dev *hdev, const char *ddc_name); +int btintel_set_event_mask(struct hci_dev *hdev, bool debug); +int btintel_set_event_mask_mfg(struct hci_dev *hdev, bool debug); +int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver); + +struct regmap *btintel_regmap_init(struct hci_dev *hdev, u16 opcode_read, + u16 opcode_write); +int btintel_send_intel_reset(struct hci_dev *hdev, u32 boot_param); +int btintel_read_boot_params(struct hci_dev *hdev, + struct intel_boot_params *params); +int btintel_download_firmware(struct hci_dev *dev, const struct firmware *fw, + u32 *boot_param); +void btintel_reset_to_bootloader(struct hci_dev *hdev); +#else + +static inline int btintel_check_bdaddr(struct hci_dev *hdev) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_enter_mfg(struct hci_dev *hdev) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_exit_mfg(struct hci_dev *hdev, bool reset, bool patched) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_set_diag(struct hci_dev *hdev, bool enable) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable) +{ + return -EOPNOTSUPP; +} + +static inline void btintel_hw_error(struct hci_dev *hdev, u8 code) +{ +} + +static inline void btintel_version_info(struct hci_dev *hdev, + struct intel_version *ver) +{ +} + +static inline int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type, + u32 plen, const void *param) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_load_ddc_config(struct hci_dev *hdev, + const char *ddc_name) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_set_event_mask(struct hci_dev *hdev, bool debug) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_set_event_mask_mfg(struct hci_dev *hdev, bool debug) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_read_version(struct hci_dev *hdev, + struct intel_version *ver) +{ + return -EOPNOTSUPP; +} + +static inline struct regmap *btintel_regmap_init(struct hci_dev *hdev, + u16 opcode_read, + u16 opcode_write) +{ + return ERR_PTR(-EINVAL); +} + +static inline int btintel_send_intel_reset(struct hci_dev *hdev, + u32 reset_param) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_read_boot_params(struct hci_dev *hdev, + struct intel_boot_params *params) +{ + return -EOPNOTSUPP; +} + +static inline int btintel_download_firmware(struct hci_dev *dev, + const struct firmware *fw, + u32 *boot_param) +{ + return -EOPNOTSUPP; +} + +static inline void btintel_reset_to_bootloader(struct hci_dev *hdev) +{ +} +#endif diff --git a/btrtl.h b/btrtl.h new file mode 100644 index 000000000000..10ad40c3e42c --- /dev/null +++ b/btrtl.h @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Bluetooth support for Realtek devices + * + * Copyright (C) 2015 Endless Mobile, Inc. + */ + +#define RTL_FRAG_LEN 252 + +#define rtl_dev_err(dev, fmt, ...) bt_dev_err(dev, "RTL: " fmt, ##__VA_ARGS__) +#define rtl_dev_warn(dev, fmt, ...) bt_dev_warn(dev, "RTL: " fmt, ##__VA_ARGS__) +#define rtl_dev_info(dev, fmt, ...) bt_dev_info(dev, "RTL: " fmt, ##__VA_ARGS__) +#define rtl_dev_dbg(dev, fmt, ...) bt_dev_dbg(dev, "RTL: " fmt, ##__VA_ARGS__) + +struct btrtl_device_info; + +struct rtl_download_cmd { + __u8 index; + __u8 data[RTL_FRAG_LEN]; +} __packed; + +struct rtl_download_response { + __u8 status; + __u8 index; +} __packed; + +struct rtl_rom_version_evt { + __u8 status; + __u8 version; +} __packed; + +struct rtl_epatch_header { + __u8 signature[8]; + __le32 fw_version; + __le16 num_patches; +} __packed; + +struct rtl_vendor_config_entry { + __le16 offset; + __u8 len; + __u8 data[0]; +} __packed; + +struct rtl_vendor_config { + __le32 signature; + __le16 total_len; + struct rtl_vendor_config_entry entry[0]; +} __packed; + +#if IS_ENABLED(CONFIG_BT_RTL) + +struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev, + const char *postfix); +void btrtl_free(struct btrtl_device_info *btrtl_dev); +int btrtl_download_firmware(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev); +int btrtl_setup_realtek(struct hci_dev *hdev); +int btrtl_shutdown_realtek(struct hci_dev *hdev); +int btrtl_get_uart_settings(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev, + unsigned int *controller_baudrate, + u32 *device_baudrate, bool *flow_control); + +#else + +static inline struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev, + const char *postfix) +{ + return ERR_PTR(-EOPNOTSUPP); +} + +static inline void btrtl_free(struct btrtl_device_info *btrtl_dev) +{ +} + +static inline int btrtl_download_firmware(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev) +{ + return -EOPNOTSUPP; +} + +static inline int btrtl_setup_realtek(struct hci_dev *hdev) +{ + return -EOPNOTSUPP; +} + +static inline int btrtl_shutdown_realtek(struct hci_dev *hdev) +{ + return -EOPNOTSUPP; +} + +static inline int btrtl_get_uart_settings(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev, + unsigned int *controller_baudrate, + u32 *device_baudrate, + bool *flow_control) +{ + return -ENOENT; +} + +#endif diff --git a/btusb-csr.install b/btusb-csr.install new file mode 100644 index 000000000000..d52a50d0dc60 --- /dev/null +++ b/btusb-csr.install @@ -0,0 +1,21 @@ +_kernmoddir=/usr/lib/modules/`uname -r` + +post_install() { + cd $_kernmoddir/updates + cp $_kernmoddir/kernel/drivers/bluetooth/* . + sudo rm -f btusb.ko.gz + sudo gzip -9 -k btusb.ko + sudo depmod -a + sudo modprobe -r btusb + sudo modprobe btusb +} + +post_upgrade() { + cd $_kernmoddir/updates + cp $_kernmoddir/kernel/drivers/bluetooth/* . + sudo rm -f btusb.ko.gz + sudo gzip -9 -k btusb.ko + sudo depmod -a + sudo modprobe -r btusb + sudo modprobe btusb +} diff --git a/btusb.c b/btusb.c new file mode 100644 index 000000000000..f5924f3e8b8d --- /dev/null +++ b/btusb.c @@ -0,0 +1,4150 @@ +// 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 <asm/unaligned.h> + +#include <net/bluetooth/bluetooth.h> +#include <net/bluetooth/hci_core.h> + +#include "btintel.h" +#include "btbcm.h" +#include "btrtl.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 0x01 +#define BTUSB_DIGIANSWER 0x02 +#define BTUSB_CSR 0x04 +#define BTUSB_SNIFFER 0x08 +#define BTUSB_BCM92035 0x10 +#define BTUSB_BROKEN_ISOC 0x20 +#define BTUSB_WRONG_SCO_MTU 0x40 +#define BTUSB_ATH3012 0x80 +#define BTUSB_INTEL 0x100 +#define BTUSB_INTEL_BOOT 0x200 +#define BTUSB_BCM_PATCHRAM 0x400 +#define BTUSB_MARVELL 0x800 +#define BTUSB_SWAVE 0x1000 +#define BTUSB_INTEL_NEW 0x2000 +#define BTUSB_AMP 0x4000 +#define BTUSB_QCA_ROME 0x8000 +#define BTUSB_BCM_APPLE 0x10000 +#define BTUSB_REALTEK 0x20000 +#define BTUSB_BCM2045 0x40000 +#define BTUSB_IFNUM_2 0x80000 +#define BTUSB_CW6622 0x100000 +#define BTUSB_MEDIATEK 0x200000 + +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 BCM20702A0 */ + { USB_DEVICE(0x413c, 0x8197) }, + + /* 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 }, + { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME }, + { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME }, + + /* 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_NEW }, + { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW }, + { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW }, + { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, + { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, + { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, + { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, + { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, + { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, + + /* Other Intel Bluetooth devices */ + { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), + .driver_info = BTUSB_IGNORE }, + + /* 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 }, + + /* 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(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 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 }, + + /* 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_DISABLE 14 + +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; + + struct work_struct work; + struct work_struct waker; + + 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; + int isoc_altsetting; + int suspend_count; + + int (*recv_event)(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 inline void btusb_free_frags(struct btusb_data *data) +{ + unsigned long flags; + + spin_lock_irqsave(&data->rxlock, flags); + + kfree_skb(data->evt_skb); + data->evt_skb = NULL; + + kfree_skb(data->acl_skb); + data->acl_skb = NULL; + + kfree_skb(data->sco_skb); + data->sco_skb = NULL; + + spin_unlock_irqrestore(&data->rxlock, flags); +} + +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 */ + data->recv_event(data->hdev, skb); + skb = NULL; + } + } + + data->evt_skb = skb; + spin_unlock_irqrestore(&data->rxlock, flags); + + return err; +} + +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 */ + hci_recv_frame(data->hdev, 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); + 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); + usb_unanchor_urb(urb); + } + + 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(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 + 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; + + /* Disable device remote wakeup when host is suspended + * For Realtek chips, global suspend without + * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device. + */ + if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) + device_wakeup_disable(&data->udev->dev); + + 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_work_sync(&data->work); + cancel_work_sync(&data->waker); + + 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_DISABLE, &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); + + 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; + + __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); + } + + 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); + 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 void btusb_work(struct work_struct *work) +{ + struct btusb_data *data = container_of(work, struct btusb_data, work); + struct hci_dev *hdev = data->hdev; + int new_alts; + int 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 (hdev->voice_setting & 0x0020) { + static const int alts[3] = { 2, 4, 5 }; + + new_alts = alts[data->sco_num - 1]; + } else { + new_alts = data->sco_num; + } + + if (data->isoc_altsetting != new_alts) { + unsigned long flags; + + clear_bit(BTUSB_ISOC_RUNNING, &data->flags); + usb_kill_anchored_urbs(&data->isoc_anchor); + + /* When isochronous alternate setting needs to be + * changed, because SCO connection has been added + * or removed, a packet fragment may be left in the + * reassembling state. This could lead to wrongly + * assembled fragments. + * + * Clear outstanding fragment when selecting a new + * alternate setting. + */ + spin_lock_irqsave(&data->rxlock, flags); + kfree_skb(data->sco_skb); + data->sco_skb = NULL; + spin_unlock_irqrestore(&data->rxlock, flags); + + if (__set_isoc_interface(hdev, new_alts) < 0) + return; + } + + 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); + } + } 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 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 hci_rp_read_local_version *rp; + struct sk_buff *skb; + + 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; + + /* Detect controllers which aren't real CSR ones. */ + if (le16_to_cpu(rp->manufacturer) != 10 || + le16_to_cpu(rp->lmp_subver) == 0x0c5c) { + /* 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); + + /* These fake CSR controllers have all a broken + * stored link key handling and so just disable it. + */ + set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); + } + + kfree_skb(skb); + + return 0; +} + +static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, + struct intel_version *ver) +{ + const struct firmware *fw; + char fwname[64]; + int ret; + + snprintf(fwname, sizeof(fwname), + "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", + ver->hw_platform, ver->hw_variant, ver->hw_revision, + ver->fw_variant, ver->fw_revision, ver->fw_build_num, + ver->fw_build_ww, ver->fw_build_yy); + + ret = request_firmware(&fw, fwname, &hdev->dev); + if (ret < 0) { + if (ret == -EINVAL) { + bt_dev_err(hdev, "Intel firmware file request failed (%d)", + ret); + return NULL; + } + + bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)", + fwname, ret); + + /* If the correct firmware patch file is not found, use the + * default firmware patch file instead + */ + snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", + ver->hw_platform, ver->hw_variant); + if (request_firmware(&fw, fwname, &hdev->dev) < 0) { + bt_dev_err(hdev, "failed to open default fw file: %s", + fwname); + return NULL; + } + } + + bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); + + return fw; +} + +static int btusb_setup_intel_patching(struct hci_dev *hdev, + const struct firmware *fw, + const u8 **fw_ptr, int *disable_patch) +{ + struct sk_buff *skb; + struct hci_command_hdr *cmd; + const u8 *cmd_param; + struct hci_event_hdr *evt = NULL; + const u8 *evt_param = NULL; + int remain = fw->size - (*fw_ptr - fw->data); + + /* The first byte indicates the types of the patch command or event. + * 0x01 means HCI command and 0x02 is HCI event. If the first bytes + * in the current firmware buffer doesn't start with 0x01 or + * the size of remain buffer is smaller than HCI command header, + * the firmware file is corrupted and it should stop the patching + * process. + */ + if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { + bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read"); + return -EINVAL; + } + (*fw_ptr)++; + remain--; + + cmd = (struct hci_command_hdr *)(*fw_ptr); + *fw_ptr += sizeof(*cmd); + remain -= sizeof(*cmd); + + /* Ensure that the remain firmware data is long enough than the length + * of command parameter. If not, the firmware file is corrupted. + */ + if (remain < cmd->plen) { + bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len"); + return -EFAULT; + } + + /* If there is a command that loads a patch in the firmware + * file, then enable the patch upon success, otherwise just + * disable the manufacturer mode, for example patch activation + * is not required when the default firmware patch file is used + * because there are no patch data to load. + */ + if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) + *disable_patch = 0; + + cmd_param = *fw_ptr; + *fw_ptr += cmd->plen; + remain -= cmd->plen; + + /* This reads the expected events when the above command is sent to the + * device. Some vendor commands expects more than one events, for + * example command status event followed by vendor specific event. + * For this case, it only keeps the last expected event. so the command + * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of + * last expected event. + */ + while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { + (*fw_ptr)++; + remain--; + + evt = (struct hci_event_hdr *)(*fw_ptr); + *fw_ptr += sizeof(*evt); + remain -= sizeof(*evt); + + if (remain < evt->plen) { + bt_dev_err(hdev, "Intel fw corrupted: invalid evt len"); + return -EFAULT; + } + + evt_param = *fw_ptr; + *fw_ptr += evt->plen; + remain -= evt->plen; + } + + /* Every HCI commands in the firmware file has its correspond event. + * If event is not found or remain is smaller than zero, the firmware + * file is corrupted. + */ + if (!evt || !evt_param || remain < 0) { + bt_dev_err(hdev, "Intel fw corrupted: invalid evt read"); + return -EFAULT; + } + + skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, + cmd_param, evt->evt, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)", + cmd->opcode, PTR_ERR(skb)); + return PTR_ERR(skb); + } + + /* It ensures that the returned event matches the event data read from + * the firmware file. At fist, it checks the length and then + * the contents of the event. + */ + if (skb->len != evt->plen) { + bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)", + le16_to_cpu(cmd->opcode)); + kfree_skb(skb); + return -EFAULT; + } + + if (memcmp(skb->data, evt_param, evt->plen)) { + bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)", + le16_to_cpu(cmd->opcode)); + kfree_skb(skb); + return -EFAULT; + } + kfree_skb(skb); + + return 0; +} + +static int btusb_setup_intel(struct hci_dev *hdev) +{ + struct sk_buff *skb; + const struct firmware *fw; + const u8 *fw_ptr; + int disable_patch, err; + struct intel_version ver; + + BT_DBG("%s", hdev->name); + + /* The controller has a bug with the first HCI command sent to it + * returning number of completed commands as zero. This would stall the + * command processing in the Bluetooth core. + * + * As a workaround, send HCI Reset command first which will reset the + * number of completed commands and allow normal command processing + * from now on. + */ + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)", + PTR_ERR(skb)); + return PTR_ERR(skb); + } + kfree_skb(skb); + + /* Read Intel specific controller version first to allow selection of + * which firmware file to load. + * + * The returned information are hardware variant and revision plus + * firmware variant, revision and build number. + */ + err = btintel_read_version(hdev, &ver); + if (err) + return err; + + bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", + ver.hw_platform, ver.hw_variant, ver.hw_revision, + ver.fw_variant, ver.fw_revision, ver.fw_build_num, + ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); + + /* fw_patch_num indicates the version of patch the device currently + * have. If there is no patch data in the device, it is always 0x00. + * So, if it is other than 0x00, no need to patch the device again. + */ + if (ver.fw_patch_num) { + bt_dev_info(hdev, "Intel device is already patched. " + "patch num: %02x", ver.fw_patch_num); + goto complete; + } + + /* Opens the firmware patch file based on the firmware version read + * from the controller. If it fails to open the matching firmware + * patch file, it tries to open the default firmware patch file. + * If no patch file is found, allow the device to operate without + * a patch. + */ + fw = btusb_setup_intel_get_fw(hdev, &ver); + if (!fw) + goto complete; + fw_ptr = fw->data; + + /* Enable the manufacturer mode of the controller. + * Only while this mode is enabled, the driver can download the + * firmware patch data and configuration parameters. + */ + err = btintel_enter_mfg(hdev); + if (err) { + release_firmware(fw); + return err; + } + + disable_patch = 1; + + /* The firmware data file consists of list of Intel specific HCI + * commands and its expected events. The first byte indicates the + * type of the message, either HCI command or HCI event. + * + * It reads the command and its expected event from the firmware file, + * and send to the controller. Once __hci_cmd_sync_ev() returns, + * the returned event is compared with the event read from the firmware + * file and it will continue until all the messages are downloaded to + * the controller. + * + * Once the firmware patching is completed successfully, + * the manufacturer mode is disabled with reset and activating the + * downloaded patch. + * + * If the firmware patching fails, the manufacturer mode is + * disabled with reset and deactivating the patch. + * + * If the default patch file is used, no reset is done when disabling + * the manufacturer. + */ + while (fw->size > fw_ptr - fw->data) { + int ret; + + ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, + &disable_patch); + if (ret < 0) + goto exit_mfg_deactivate; + } + + release_firmware(fw); + + if (disable_patch) + goto exit_mfg_disable; + + /* Patching completed successfully and disable the manufacturer mode + * with reset and activate the downloaded firmware patches. + */ + err = btintel_exit_mfg(hdev, true, true); + if (err) + return err; + + bt_dev_info(hdev, "Intel firmware patch completed and activated"); + + goto complete; + +exit_mfg_disable: + /* Disable the manufacturer mode without reset */ + err = btintel_exit_mfg(hdev, false, false); + if (err) + return err; + + bt_dev_info(hdev, "Intel firmware patch completed"); + + goto complete; + +exit_mfg_deactivate: + release_firmware(fw); + + /* Patching failed. Disable the manufacturer mode with reset and + * deactivate the downloaded firmware patches. + */ + err = btintel_exit_mfg(hdev, true, false); + if (err) + return err; + + bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); + +complete: + /* Set the event mask for Intel specific vendor events. This enables + * a few extra events that are useful during general operation. + */ + btintel_set_event_mask_mfg(hdev, false); + + btintel_check_bdaddr(hdev); + 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) +{ + /* 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 (test_bit(BTUSB_BOOTLOADER, &data->flags)) + return btusb_recv_intr(data, buffer, count); + + return btusb_recv_bulk(data, buffer, count); +} + +static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, + unsigned int len) +{ + const struct intel_bootup *evt = ptr; + + if (len != sizeof(*evt)) + return; + + if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) + wake_up_bit(&data->flags, BTUSB_BOOTING); +} + +static void btusb_intel_secure_send_result(struct btusb_data *data, + const void *ptr, unsigned int len) +{ + const struct intel_secure_send_result *evt = ptr; + + if (len != sizeof(*evt)) + return; + + if (evt->result) + set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); + + if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && + test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) + wake_up_bit(&data->flags, BTUSB_DOWNLOADING); +} + +static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) +{ + struct btusb_data *data = hci_get_drvdata(hdev); + + if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { + 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. + */ + btusb_intel_bootup(data, 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. + */ + btusb_intel_secure_send_result(data, ptr, len); + break; + } + } + } + + return hci_recv_frame(hdev, skb); +} + +static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) +{ + struct btusb_data *data = hci_get_drvdata(hdev); + struct urb *urb; + + BT_DBG("%s", hdev->name); + + switch (hci_skb_pkt_type(skb)) { + case HCI_COMMAND_PKT: + if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { + 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); + } + + return -EILSEQ; +} + +static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver, + struct intel_boot_params *params, + char *fw_name, size_t len, + const char *suffix) +{ + switch (ver->hw_variant) { + case 0x0b: /* SfP */ + case 0x0c: /* WsP */ + snprintf(fw_name, len, "intel/ibt-%u-%u.%s", + le16_to_cpu(ver->hw_variant), + le16_to_cpu(params->dev_revid), + suffix); + break; + case 0x11: /* JfP */ + case 0x12: /* ThP */ + case 0x13: /* HrP */ + case 0x14: /* CcP */ + snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s", + le16_to_cpu(ver->hw_variant), + le16_to_cpu(ver->hw_revision), + le16_to_cpu(ver->fw_revision), + suffix); + break; + default: + return false; + } + return true; +} + +static int btusb_setup_intel_new(struct hci_dev *hdev) +{ + struct btusb_data *data = hci_get_drvdata(hdev); + struct intel_version ver; + struct intel_boot_params params; + const struct firmware *fw; + u32 boot_param; + char fwname[64]; + ktime_t calltime, delta, rettime; + unsigned long long duration; + int err; + + BT_DBG("%s", hdev->name); + + /* Set the default boot parameter to 0x0 and it is updated to + * SKU specific boot parameter after reading Intel_Write_Boot_Params + * command while downloading the firmware. + */ + boot_param = 0x00000000; + + calltime = ktime_get(); + + /* Read the Intel version information to determine if the device + * is in bootloader mode or if it already has operational firmware + * loaded. + */ + err = btintel_read_version(hdev, &ver); + if (err) { + bt_dev_err(hdev, "Intel Read version failed (%d)", err); + btintel_reset_to_bootloader(hdev); + return err; + } + + /* The hardware platform number has a fixed value of 0x37 and + * for now only accept this single value. + */ + if (ver.hw_platform != 0x37) { + bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", + ver.hw_platform); + return -EINVAL; + } + + /* Check for supported iBT hardware variants of this firmware + * loading method. + * + * This check has been put in place to ensure correct forward + * compatibility options when newer hardware variants come along. + */ + switch (ver.hw_variant) { + case 0x0b: /* SfP */ + case 0x0c: /* WsP */ + case 0x11: /* JfP */ + case 0x12: /* ThP */ + case 0x13: /* HrP */ + case 0x14: /* CcP */ + break; + default: + bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", + ver.hw_variant); + return -EINVAL; + } + + btintel_version_info(hdev, &ver); + + /* The firmware variant determines if the device is in bootloader + * mode or is running operational firmware. The value 0x06 identifies + * the bootloader and the value 0x23 identifies the operational + * firmware. + * + * When the operational firmware is already present, then only + * the check for valid Bluetooth device address is needed. This + * determines if the device will be added as configured or + * unconfigured controller. + * + * It is not possible to use the Secure Boot Parameters in this + * case since that command is only available in bootloader mode. + */ + if (ver.fw_variant == 0x23) { + clear_bit(BTUSB_BOOTLOADER, &data->flags); + btintel_check_bdaddr(hdev); + return 0; + } + + /* If the device is not in bootloader mode, then the only possible + * choice is to return an error and abort the device initialization. + */ + if (ver.fw_variant != 0x06) { + bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)", + ver.fw_variant); + return -ENODEV; + } + + /* Read the secure boot parameters to identify the operating + * details of the bootloader. + */ + err = btintel_read_boot_params(hdev, ¶ms); + if (err) + return err; + + /* It is required that every single firmware fragment is acknowledged + * with a command complete event. If the boot parameters indicate + * that this bootloader does not send them, then abort the setup. + */ + if (params.limited_cce != 0x00) { + bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)", + params.limited_cce); + return -EINVAL; + } + + /* If the OTP has no valid Bluetooth device address, then there will + * also be no valid address for the operational firmware. + */ + if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) { + bt_dev_info(hdev, "No device address configured"); + set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); + } + + /* With this Intel bootloader only the hardware variant and device + * revision information are used to select the right firmware for SfP + * and WsP. + * + * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. + * + * Currently the supported hardware variants are: + * 11 (0x0b) for iBT3.0 (LnP/SfP) + * 12 (0x0c) for iBT3.5 (WsP) + * + * For ThP/JfP and for future SKU's, the FW name varies based on HW + * variant, HW revision and FW revision, as these are dependent on CNVi + * and RF Combination. + * + * 17 (0x11) for iBT3.5 (JfP) + * 18 (0x12) for iBT3.5 (ThP) + * + * The firmware file name for these will be + * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. + * + */ + err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname, + sizeof(fwname), "sfi"); + if (!err) { + bt_dev_err(hdev, "Unsupported Intel firmware naming"); + return -EINVAL; + } + + err = request_firmware(&fw, fwname, &hdev->dev); + if (err < 0) { + bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err); + return err; + } + + bt_dev_info(hdev, "Found device firmware: %s", fwname); + + /* Save the DDC file name for later use to apply once the firmware + * downloading is done. + */ + err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname, + sizeof(fwname), "ddc"); + if (!err) { + bt_dev_err(hdev, "Unsupported Intel firmware naming"); + return -EINVAL; + } + + if (fw->size < 644) { + bt_dev_err(hdev, "Invalid size of firmware file (%zu)", + fw->size); + err = -EBADF; + goto done; + } + + set_bit(BTUSB_DOWNLOADING, &data->flags); + + /* Start firmware downloading and get boot parameter */ + err = btintel_download_firmware(hdev, fw, &boot_param); + if (err < 0) { + /* When FW download fails, send Intel Reset to retry + * FW download. + */ + btintel_reset_to_bootloader(hdev); + goto done; + } + set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); + + bt_dev_info(hdev, "Waiting for firmware download to complete"); + + /* Before switching the device into operational mode and with that + * booting the loaded firmware, wait for the bootloader notification + * that all fragments have been successfully received. + * + * When the event processing receives the notification, then the + * BTUSB_DOWNLOADING flag will be cleared. + * + * The firmware loading should not take longer than 5 seconds + * and thus just timeout if that happens and fail the setup + * of this device. + */ + err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, + TASK_INTERRUPTIBLE, + msecs_to_jiffies(5000)); + if (err == -EINTR) { + bt_dev_err(hdev, "Firmware loading interrupted"); + goto done; + } + + if (err) { + bt_dev_err(hdev, "Firmware loading timeout"); + err = -ETIMEDOUT; + btintel_reset_to_bootloader(hdev); + goto done; + } + + if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { + bt_dev_err(hdev, "Firmware loading failed"); + err = -ENOEXEC; + goto done; + } + + rettime = ktime_get(); + delta = ktime_sub(rettime, calltime); + duration = (unsigned long long) ktime_to_ns(delta) >> 10; + + bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); + +done: + release_firmware(fw); + + if (err < 0) + return err; + + calltime = ktime_get(); + + set_bit(BTUSB_BOOTING, &data->flags); + + err = btintel_send_intel_reset(hdev, boot_param); + if (err) { + bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err); + btintel_reset_to_bootloader(hdev); + return err; + } + + /* The bootloader will not indicate when the device is ready. This + * is done by the operational firmware sending bootup notification. + * + * Booting into operational firmware should not take longer than + * 1 second. However if that happens, then just fail the setup + * since something went wrong. + */ + bt_dev_info(hdev, "Waiting for device to boot"); + + err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, + TASK_INTERRUPTIBLE, + msecs_to_jiffies(1000)); + + if (err == -EINTR) { + bt_dev_err(hdev, "Device boot interrupted"); + return -EINTR; + } + + if (err) { + bt_dev_err(hdev, "Device boot timeout"); + btintel_reset_to_bootloader(hdev); + return -ETIMEDOUT; + } + + rettime = ktime_get(); + delta = ktime_sub(rettime, calltime); + duration = (unsigned long long) ktime_to_ns(delta) >> 10; + + bt_dev_info(hdev, "Device booted in %llu usecs", duration); + + clear_bit(BTUSB_BOOTLOADER, &data->flags); + + /* Once the device is running in operational mode, it needs to apply + * the device configuration (DDC) parameters. + * + * The device can work without DDC parameters, so even if it fails + * to load the file, no need to fail the setup. + */ + btintel_load_ddc_config(hdev, fwname); + + /* Set the event mask for Intel specific vendor events. This enables + * a few extra events that are useful during general operation. It + * does not enable any debugging related events. + * + * The device will function correctly without these events enabled + * and thus no need to fail the setup. + */ + btintel_set_event_mask(hdev, false); + + /* Read the Intel version information after loading the FW */ + err = btintel_read_version(hdev, &ver); + if (err) + return err; + + btintel_version_info(hdev, &ver); + + return 0; +} + +static int btusb_shutdown_intel(struct hci_dev *hdev) +{ + struct sk_buff *skb; + long ret; + + /* In the shutdown sequence where Bluetooth is turned off followed + * by WiFi being turned off, turning WiFi back on causes issue with + * the RF calibration. + * + * To ensure that any RF activity has been stopped, issue HCI Reset + * command to clear all ongoing activity including advertising, + * scanning etc. + */ + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + ret = PTR_ERR(skb); + bt_dev_err(hdev, "HCI reset during shutdown failed"); + return ret; + } + kfree_skb(skb); + + /* Some platforms have an issue with BT LED when the interface is + * down or BT radio is turned off, which takes 5 seconds to BT LED + * goes off. This command turns off the BT LED immediately. + */ + skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + ret = PTR_ERR(skb); + bt_dev_err(hdev, "turning off Intel device LED failed"); + return ret; + } + kfree_skb(skb); + + return 0; +} + +static int btusb_shutdown_intel_new(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + /* Send HCI Reset to the controller to stop any BT activity which + * were triggered. This will help to save power and maintain the + * sync b/w Host and controller + */ + 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; +} + +#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin" +#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin" + +#define HCI_WMT_MAX_EVENT_SIZE 64 + +enum { + BTMTK_WMT_PATCH_DWNLD = 0x1, + BTMTK_WMT_FUNC_CTRL = 0x6, + BTMTK_WMT_RST = 0x7, + BTMTK_WMT_SEMAPHORE = 0x17, +}; + +enum { + BTMTK_WMT_INVALID, + BTMTK_WMT_PATCH_UNDONE, + BTMTK_WMT_PATCH_DONE, + BTMTK_WMT_ON_UNDONE, + BTMTK_WMT_ON_DONE, + BTMTK_WMT_ON_PROGRESS, +}; + +struct btmtk_wmt_hdr { + u8 dir; + u8 op; + __le16 dlen; + u8 flag; +} __packed; + +struct btmtk_hci_wmt_cmd { + struct btmtk_wmt_hdr hdr; + u8 data[256]; +} __packed; + +struct btmtk_hci_wmt_evt { + struct hci_event_hdr hhdr; + struct btmtk_wmt_hdr whdr; +} __packed; + +struct btmtk_hci_wmt_evt_funcc { + struct btmtk_hci_wmt_evt hwhdr; + __be16 status; +} __packed; + +struct btmtk_tci_sleep { + u8 mode; + __le16 duration; + __le16 host_duration; + u8 host_wakeup_pin; + u8 time_compensation; +} __packed; + +struct btmtk_hci_wmt_params { + u8 op; + u8 flag; + u16 dlen; + const void *data; + u32 *status; +}; + +static void btusb_mtk_wmt_recv(struct urb *urb) +{ + struct hci_dev *hdev = urb->context; + struct btusb_data *data = hci_get_drvdata(hdev); + struct hci_event_hdr *hdr; + 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++; + goto err_out; + } + + hci_skb_pkt_type(skb) = HCI_EVENT_PKT; + skb_put_data(skb, urb->transfer_buffer, urb->actual_length); + + hdr = (void *)skb->data; + /* Fix up the vendor event id with 0xff for vendor specific + * instead of 0xe4 so that event send via monitoring socket can + * be parsed properly. + */ + hdr->evt = 0xff; + + /* 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) + goto err_out; + } + + err = hci_recv_frame(hdev, skb); + if (err < 0) + goto err_free_skb; + + 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); + } +err_out: + return; +err_free_skb: + kfree_skb(data->evt_skb); + data->evt_skb = NULL; + 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(100); + + usb_anchor_urb(urb, &data->ctrl_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 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); + 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; + + /* Submit control IN URB on demand to process the WMT event */ + err = btusb_mtk_submit_wmt_recv_urb(hdev); + if (err < 0) + return err; + + /* Send the WMT command and wait until the WMT event returns */ + hlen = sizeof(*hdr) + wmt_params->dlen; + if (hlen > 255) + return -EINVAL; + + hdr = (struct btmtk_wmt_hdr *)&wc; + 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); + + err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc); + + if (err < 0) { + clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); + return err; + } + + /* 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); + return err; + } + + if (err) { + bt_dev_err(hdev, "Execution of wmt command timed out"); + clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); + return -ETIMEDOUT; + } + + /* 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; + } + + if (wmt_params->status) + *wmt_params->status = status; + +err_free_skb: + kfree_skb(data->evt_skb); + data->evt_skb = NULL; + + return err; +} + +static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname) +{ + struct btmtk_hci_wmt_params wmt_params; + const struct firmware *fw; + const u8 *fw_ptr; + size_t fw_size; + int err, dlen; + u8 flag; + + err = request_firmware(&fw, fwname, &hdev->dev); + if (err < 0) { + bt_dev_err(hdev, "Failed to load firmware file (%d)", err); + return err; + } + + fw_ptr = fw->data; + fw_size = fw->size; + + /* The size of patch header is 30 bytes, should be skip */ + if (fw_size < 30) { + err = -EINVAL; + goto err_release_fw; + } + + fw_size -= 30; + fw_ptr += 30; + flag = 1; + + wmt_params.op = BTMTK_WMT_PATCH_DWNLD; + wmt_params.status = NULL; + + while (fw_size > 0) { + dlen = min_t(int, 250, fw_size); + + /* Tell deivice the position in sequence */ + if (fw_size - dlen <= 0) + flag = 3; + else if (fw_size < fw->size - 30) + flag = 2; + + wmt_params.flag = flag; + wmt_params.dlen = dlen; + wmt_params.data = fw_ptr; + + err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); + if (err < 0) { + bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)", + err); + goto err_release_fw; + } + + fw_size -= dlen; + fw_ptr += dlen; + } + + wmt_params.op = BTMTK_WMT_RST; + wmt_params.flag = 4; + wmt_params.dlen = 0; + wmt_params.data = NULL; + wmt_params.status = NULL; + + /* Activate funciton the firmware providing to */ + err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); + if (err < 0) { + bt_dev_err(hdev, "Failed to send wmt rst (%d)", err); + goto err_release_fw; + } + + /* Wait a few moments for firmware activation done */ + usleep_range(10000, 12000); + +err_release_fw: + release_firmware(fw); + + 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 = ¶m; + 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_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 *id) +{ + return btusb_mtk_reg_read(data, 0x80000008, 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; + u8 param; + + calltime = ktime_get(); + + err = btusb_mtk_id_get(data, &dev_id); + if (err < 0) { + bt_dev_err(hdev, "Failed to get device id (%d)", err); + return err; + } + + switch (dev_id) { + case 0x7663: + fwname = FIRMWARE_MT7663; + break; + case 0x7668: + fwname = FIRMWARE_MT7668; + break; + default: + bt_dev_err(hdev, "Unsupported support 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 = btusb_mtk_setup_firmware(hdev, fwname); + 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 = ¶m; + 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); + + 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 = ¶m; + 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; +} + +MODULE_FIRMWARE(FIRMWARE_MT7663); +MODULE_FIRMWARE(FIRMWARE_MT7668); + +#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\n", __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\n", __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; +} + +#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 + +struct qca_version { + __le32 rom_version; + __le32 patch_version; + __le32 ram_version; + __le32 ref_clock; + __u8 reserved[4]; +} __packed; + +struct qca_rampatch_version { + __le16 rom_version; + __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, 10 }, /* Rome 1.0 */ + { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ + { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ + { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ + { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ + { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ +}; + +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; + + 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; + u16 rver_rom, 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 = le16_to_cpu(rver->rom_version); + rver_patch = le16_to_cpu(rver->patch_version); + + 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 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; + + snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", + le32_to_cpu(ver->rom_version)); + + 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); + /* Don't care about high ROM versions */ + if (ver_rom & ~0xffffU) + return 0; + + 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) { + 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; + } + + if (!(status & QCA_SYSCFG_UPDATED)) { + err = btusb_setup_qca_load_nvm(hdev, &ver, info); + if (err < 0) + return err; + } + + 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 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; + + 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_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); + + if (id->driver_info & BTUSB_INTEL_NEW) { + data->recv_event = btusb_recv_event_intel; + data->recv_bulk = btusb_recv_bulk_intel; + set_bit(BTUSB_BOOTLOADER, &data->flags); + } else { + data->recv_event = hci_recv_frame; + data->recv_bulk = btusb_recv_bulk; + } + + hdev = hci_alloc_dev(); + 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; + +#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); + } + + if (id->driver_info & BTUSB_INTEL) { + hdev->manufacturer = 2; + hdev->setup = btusb_setup_intel; + hdev->shutdown = btusb_shutdown_intel; + hdev->set_diag = btintel_set_diag_mfg; + hdev->set_bdaddr = btintel_set_bdaddr; + hdev->cmd_timeout = btusb_intel_cmd_timeout; + set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); + set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); + set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); + } + + if (id->driver_info & BTUSB_INTEL_NEW) { + hdev->manufacturer = 2; + hdev->send = btusb_send_frame_intel; + hdev->setup = btusb_setup_intel_new; + hdev->shutdown = btusb_shutdown_intel_new; + hdev->hw_error = btintel_hw_error; + hdev->set_diag = btintel_set_diag; + hdev->set_bdaddr = btintel_set_bdaddr; + hdev->cmd_timeout = btusb_intel_cmd_timeout; + set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); + set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); + set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); + } + + 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; + set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); + } + + 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->set_bdaddr = btusb_set_bdaddr_ath3012; + set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); + btusb_check_needs_reset_resume(intf); + } + + 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 lose their updated firmware over global + * suspend that means host doesn't send SET_FEATURE + * (DEVICE_REMOTE_WAKEUP) + */ + set_bit(BTUSB_WAKEUP_DISABLE, &data->flags); + + err = usb_autopm_get_interface(intf); + if (err < 0) + goto out_free_dev; + } + + 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 (!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_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); + + /* Fake CSR devices with broken commands */ + if (bcdDevice <= 0x100 || bcdDevice == 0x134) + hdev->setup = btusb_setup_csr; + + set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); + } + + 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); + + 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_DISABLE, &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)) + 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"); diff --git a/btusb.patch b/btusb.patch new file mode 100644 index 000000000000..d146eb0ed18a --- /dev/null +++ b/btusb.patch @@ -0,0 +1,26 @@ +--- a/btusb.c ++++ b/btusb.c +@@ -1591,7 +1591,8 @@ static int btusb_setup_csr(struct hci_dev *hdev) + + /* Detect controllers which aren't real CSR ones. */ + if (le16_to_cpu(rp->manufacturer) != 10 || +- le16_to_cpu(rp->lmp_subver) == 0x0c5c) { ++ le16_to_cpu(rp->lmp_subver) == 0x0811 || ++ le16_to_cpu(rp->lmp_subver) == 0x0c5c) { + /* Clear the reset quirk since this is not an actual + * early Bluetooth 1.1 device from CSR. + */ +@@ -3229,7 +3230,9 @@ static int btusb_probe(struct usb_interface *intf, + set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); + + /* Fake CSR devices with broken commands */ +- if (bcdDevice <= 0x100 || bcdDevice == 0x134) ++ if (bcdDevice <= 0x100 || ++ bcdDevice == 0x134 || ++ bcdDevice == 0x8891) + hdev->setup = btusb_setup_csr; + + set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); +-- +2.22.0 + |