| /* |
| * |
| * Generic Bluetooth USB driver |
| * |
| * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/usb.h> |
| #include <linux/firmware.h> |
| #include <asm/unaligned.h> |
| |
| #include <net/bluetooth/bluetooth.h> |
| #include <net/bluetooth/hci_core.h> |
| |
| #include "btintel.h" |
| #include "btbcm.h" |
| |
| #define VERSION "0.8" |
| |
| static bool disable_scofix; |
| static bool force_scofix; |
| |
| static bool reset = 1; |
| |
| 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 |
| |
| 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 }, |
| |
| /* Apple-specific (Broadcom) devices */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_APPLE }, |
| |
| /* 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 }, |
| |
| /* 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 }, |
| |
| /* 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 }, |
| |
| /* 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(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(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, 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, 0x3474), .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, 0xe007), .driver_info = BTUSB_QCA_ROME }, |
| { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, |
| { USB_DEVICE(0x0cf3, 0xe360), .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 }, |
| |
| /* 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 }, |
| |
| /* Intel Bluetooth devices */ |
| { 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 }, |
| |
| /* 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 }, |
| |
| /* 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 }, |
| |
| /* 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 }, |
| |
| { } /* Terminating entry */ |
| }; |
| |
| #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 |
| |
| struct btusb_data { |
| struct hci_dev *hdev; |
| struct usb_device *udev; |
| struct usb_interface *intf; |
| struct usb_interface *isoc; |
| |
| 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; |
| 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; |
| |
| __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); |
| }; |
| |
| 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; |
| int err = 0; |
| |
| spin_lock(&data->rxlock); |
| 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; |
| } |
| |
| bt_cb(skb)->pkt_type = HCI_EVENT_PKT; |
| bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE; |
| } |
| |
| len = min_t(uint, bt_cb(skb)->expect, count); |
| memcpy(skb_put(skb, len), buffer, len); |
| |
| count -= len; |
| buffer += len; |
| bt_cb(skb)->expect -= len; |
| |
| if (skb->len == HCI_EVENT_HDR_SIZE) { |
| /* Complete event header */ |
| bt_cb(skb)->expect = hci_event_hdr(skb)->plen; |
| |
| if (skb_tailroom(skb) < bt_cb(skb)->expect) { |
| kfree_skb(skb); |
| skb = NULL; |
| |
| err = -EILSEQ; |
| break; |
| } |
| } |
| |
| if (bt_cb(skb)->expect == 0) { |
| /* Complete frame */ |
| data->recv_event(data->hdev, skb); |
| skb = NULL; |
| } |
| } |
| |
| data->evt_skb = skb; |
| spin_unlock(&data->rxlock); |
| |
| return err; |
| } |
| |
| static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) |
| { |
| struct sk_buff *skb; |
| int err = 0; |
| |
| spin_lock(&data->rxlock); |
| 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; |
| } |
| |
| bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; |
| bt_cb(skb)->expect = HCI_ACL_HDR_SIZE; |
| } |
| |
| len = min_t(uint, bt_cb(skb)->expect, count); |
| memcpy(skb_put(skb, len), buffer, len); |
| |
| count -= len; |
| buffer += len; |
| bt_cb(skb)->expect -= len; |
| |
| if (skb->len == HCI_ACL_HDR_SIZE) { |
| __le16 dlen = hci_acl_hdr(skb)->dlen; |
| |
| /* Complete ACL header */ |
| bt_cb(skb)->expect = __le16_to_cpu(dlen); |
| |
| if (skb_tailroom(skb) < bt_cb(skb)->expect) { |
| kfree_skb(skb); |
| skb = NULL; |
| |
| err = -EILSEQ; |
| break; |
| } |
| } |
| |
| if (bt_cb(skb)->expect == 0) { |
| /* Complete frame */ |
| hci_recv_frame(data->hdev, skb); |
| skb = NULL; |
| } |
| } |
| |
| data->acl_skb = skb; |
| spin_unlock(&data->rxlock); |
| |
| return err; |
| } |
| |
| static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) |
| { |
| struct sk_buff *skb; |
| int err = 0; |
| |
| spin_lock(&data->rxlock); |
| 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; |
| } |
| |
| bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; |
| bt_cb(skb)->expect = HCI_SCO_HDR_SIZE; |
| } |
| |
| len = min_t(uint, bt_cb(skb)->expect, count); |
| memcpy(skb_put(skb, len), buffer, len); |
| |
| count -= len; |
| buffer += len; |
| bt_cb(skb)->expect -= len; |
| |
| if (skb->len == HCI_SCO_HDR_SIZE) { |
| /* Complete SCO header */ |
| bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen; |
| |
| if (skb_tailroom(skb) < bt_cb(skb)->expect) { |
| kfree_skb(skb); |
| skb = NULL; |
| |
| err = -EILSEQ; |
| break; |
| } |
| } |
| |
| if (bt_cb(skb)->expect == 0) { |
| /* Complete frame */ |
| hci_recv_frame(data->hdev, skb); |
| skb = NULL; |
| } |
| } |
| |
| data->sco_skb = skb; |
| spin_unlock(&data->rxlock); |
| |
| 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_ERR("%s corrupted event packet", hdev->name); |
| 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_ERR("%s urb %p failed to resubmit (%d)", |
| hdev->name, 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_ERR("%s urb %p submission failed (%d)", |
| hdev->name, 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_ERR("%s corrupted ACL packet", hdev->name); |
| 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_ERR("%s urb %p failed to resubmit (%d)", |
| hdev->name, 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_ERR("%s urb %p submission failed (%d)", |
| hdev->name, 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_ERR("%s corrupted SCO packet", hdev->name); |
| 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_ERR("%s urb %p failed to resubmit (%d)", |
| hdev->name, 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_ERR("%s urb %p submission failed (%d)", |
| hdev->name, 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); |
| |
| 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(&data->txlock); |
| data->tx_in_flight--; |
| spin_unlock(&data->txlock); |
| |
| 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); |
| |
| /* 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) |
| return err; |
| } |
| |
| err = usb_autopm_get_interface(data->intf); |
| if (err < 0) |
| return err; |
| |
| data->intf->needs_remote_wakeup = 1; |
| |
| if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
| goto done; |
| |
| 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); |
| |
| done: |
| usb_autopm_put_interface(data->intf); |
| return 0; |
| |
| failed: |
| clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
| clear_bit(HCI_RUNNING, &hdev->flags); |
| 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); |
| } |
| |
| static int btusb_close(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
| return 0; |
| |
| 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); |
| |
| 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; |
| 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_ERR("%s urb %p submission failed (%d)", |
| hdev->name, 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); |
| |
| if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| return -EBUSY; |
| |
| switch (bt_cb(skb)->pkt_type) { |
| 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, 1, altsetting); |
| if (err < 0) { |
| BT_ERR("%s setting interface failed (%d)", hdev->name, -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_ERR("%s invalid SCO descriptors", hdev->name); |
| 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) { |
| clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| usb_kill_anchored_urbs(&data->isoc_anchor); |
| |
| 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 struct sk_buff *btusb_read_local_version(struct hci_dev *hdev) |
| { |
| struct sk_buff *skb; |
| |
| skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, |
| HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return skb; |
| } |
| |
| if (skb->len != sizeof(struct hci_rp_read_local_version)) { |
| BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch", |
| hdev->name); |
| kfree_skb(skb); |
| return ERR_PTR(-EIO); |
| } |
| |
| return skb; |
| } |
| |
| static int btusb_setup_bcm92035(struct hci_dev *hdev) |
| { |
| struct sk_buff *skb; |
| u8 val = 0x00; |
| |
| BT_DBG("%s", hdev->name); |
| |
| skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) |
| BT_ERR("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; |
| int ret; |
| |
| BT_DBG("%s", hdev->name); |
| |
| skb = btusb_read_local_version(hdev); |
| if (IS_ERR(skb)) |
| return -PTR_ERR(skb); |
| |
| rp = (struct hci_rp_read_local_version *)skb->data; |
| |
| if (!rp->status) { |
| if (le16_to_cpu(rp->manufacturer) != 10) { |
| /* 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); |
| } |
| } |
| |
| ret = -bt_to_errno(rp->status); |
| |
| kfree_skb(skb); |
| |
| return ret; |
| } |
| |
| #define RTL_FRAG_LEN 252 |
| |
| 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; |
| |
| #define RTL_EPATCH_SIGNATURE "Realtech" |
| #define RTL_ROM_LMP_3499 0x3499 |
| #define RTL_ROM_LMP_8723A 0x1200 |
| #define RTL_ROM_LMP_8723B 0x8723 |
| #define RTL_ROM_LMP_8821A 0x8821 |
| #define RTL_ROM_LMP_8761A 0x8761 |
| |
| static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version) |
| { |
| struct rtl_rom_version_evt *rom_version; |
| struct sk_buff *skb; |
| int ret; |
| |
| /* Read RTL ROM version command */ |
| skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s: Read ROM version failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return PTR_ERR(skb); |
| } |
| |
| if (skb->len != sizeof(*rom_version)) { |
| BT_ERR("%s: RTL version event length mismatch", hdev->name); |
| kfree_skb(skb); |
| return -EIO; |
| } |
| |
| rom_version = (struct rtl_rom_version_evt *)skb->data; |
| BT_INFO("%s: rom_version status=%x version=%x", |
| hdev->name, rom_version->status, rom_version->version); |
| |
| ret = rom_version->status; |
| if (ret == 0) |
| *version = rom_version->version; |
| |
| kfree_skb(skb); |
| return ret; |
| } |
| |
| static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, |
| const struct firmware *fw, |
| unsigned char **_buf) |
| { |
| const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 }; |
| struct rtl_epatch_header *epatch_info; |
| unsigned char *buf; |
| int i, ret, len; |
| size_t min_size; |
| u8 opcode, length, data, rom_version = 0; |
| int project_id = -1; |
| const unsigned char *fwptr, *chip_id_base; |
| const unsigned char *patch_length_base, *patch_offset_base; |
| u32 patch_offset = 0; |
| u16 patch_length, num_patches; |
| const u16 project_id_to_lmp_subver[] = { |
| RTL_ROM_LMP_8723A, |
| RTL_ROM_LMP_8723B, |
| RTL_ROM_LMP_8821A, |
| RTL_ROM_LMP_8761A |
| }; |
| |
| ret = rtl_read_rom_version(hdev, &rom_version); |
| if (ret) |
| return -bt_to_errno(ret); |
| |
| min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3; |
| if (fw->size < min_size) |
| return -EINVAL; |
| |
| fwptr = fw->data + fw->size - sizeof(extension_sig); |
| if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) { |
| BT_ERR("%s: extension section signature mismatch", hdev->name); |
| return -EINVAL; |
| } |
| |
| /* Loop from the end of the firmware parsing instructions, until |
| * we find an instruction that identifies the "project ID" for the |
| * hardware supported by this firwmare file. |
| * Once we have that, we double-check that that project_id is suitable |
| * for the hardware we are working with. |
| */ |
| while (fwptr >= fw->data + (sizeof(struct rtl_epatch_header) + 3)) { |
| opcode = *--fwptr; |
| length = *--fwptr; |
| data = *--fwptr; |
| |
| BT_DBG("check op=%x len=%x data=%x", opcode, length, data); |
| |
| if (opcode == 0xff) /* EOF */ |
| break; |
| |
| if (length == 0) { |
| BT_ERR("%s: found instruction with length 0", |
| hdev->name); |
| return -EINVAL; |
| } |
| |
| if (opcode == 0 && length == 1) { |
| project_id = data; |
| break; |
| } |
| |
| fwptr -= length; |
| } |
| |
| if (project_id < 0) { |
| BT_ERR("%s: failed to find version instruction", hdev->name); |
| return -EINVAL; |
| } |
| |
| if (project_id >= ARRAY_SIZE(project_id_to_lmp_subver)) { |
| BT_ERR("%s: unknown project id %d", hdev->name, project_id); |
| return -EINVAL; |
| } |
| |
| if (lmp_subver != project_id_to_lmp_subver[project_id]) { |
| BT_ERR("%s: firmware is for %x but this is a %x", hdev->name, |
| project_id_to_lmp_subver[project_id], lmp_subver); |
| return -EINVAL; |
| } |
| |
| epatch_info = (struct rtl_epatch_header *)fw->data; |
| if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) { |
| BT_ERR("%s: bad EPATCH signature", hdev->name); |
| return -EINVAL; |
| } |
| |
| num_patches = le16_to_cpu(epatch_info->num_patches); |
| BT_DBG("fw_version=%x, num_patches=%d", |
| le32_to_cpu(epatch_info->fw_version), num_patches); |
| |
| /* After the rtl_epatch_header there is a funky patch metadata section. |
| * Assuming 2 patches, the layout is: |
| * ChipID1 ChipID2 PatchLength1 PatchLength2 PatchOffset1 PatchOffset2 |
| * |
| * Find the right patch for this chip. |
| */ |
| min_size += 8 * num_patches; |
| if (fw->size < min_size) |
| return -EINVAL; |
| |
| chip_id_base = fw->data + sizeof(struct rtl_epatch_header); |
| patch_length_base = chip_id_base + (sizeof(u16) * num_patches); |
| patch_offset_base = patch_length_base + (sizeof(u16) * num_patches); |
| for (i = 0; i < num_patches; i++) { |
| u16 chip_id = get_unaligned_le16(chip_id_base + |
| (i * sizeof(u16))); |
| if (chip_id == rom_version + 1) { |
| patch_length = get_unaligned_le16(patch_length_base + |
| (i * sizeof(u16))); |
| patch_offset = get_unaligned_le32(patch_offset_base + |
| (i * sizeof(u32))); |
| break; |
| } |
| } |
| |
| if (!patch_offset) { |
| BT_ERR("%s: didn't find patch for chip id %d", |
| hdev->name, rom_version); |
| return -EINVAL; |
| } |
| |
| BT_DBG("length=%x offset=%x index %d", patch_length, patch_offset, i); |
| min_size = patch_offset + patch_length; |
| if (fw->size < min_size) |
| return -EINVAL; |
| |
| /* Copy the firmware into a new buffer and write the version at |
| * the end. |
| */ |
| len = patch_length; |
| buf = kmemdup(fw->data + patch_offset, patch_length, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| memcpy(buf + patch_length - 4, &epatch_info->fw_version, 4); |
| |
| *_buf = buf; |
| return len; |
| } |
| |
| static int rtl_download_firmware(struct hci_dev *hdev, |
| const unsigned char *data, int fw_len) |
| { |
| struct rtl_download_cmd *dl_cmd; |
| int frag_num = fw_len / RTL_FRAG_LEN + 1; |
| int frag_len = RTL_FRAG_LEN; |
| int ret = 0; |
| int i; |
| |
| dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL); |
| if (!dl_cmd) |
| return -ENOMEM; |
| |
| for (i = 0; i < frag_num; i++) { |
| struct rtl_download_response *dl_resp; |
| struct sk_buff *skb; |
| |
| BT_DBG("download fw (%d/%d)", i, frag_num); |
| |
| dl_cmd->index = i; |
| if (i == (frag_num - 1)) { |
| dl_cmd->index |= 0x80; /* data end */ |
| frag_len = fw_len % RTL_FRAG_LEN; |
| } |
| memcpy(dl_cmd->data, data, frag_len); |
| |
| /* Send download command */ |
| skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd, |
| HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s: download fw command failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| ret = -PTR_ERR(skb); |
| goto out; |
| } |
| |
| if (skb->len != sizeof(*dl_resp)) { |
| BT_ERR("%s: download fw event length mismatch", |
| hdev->name); |
| kfree_skb(skb); |
| ret = -EIO; |
| goto out; |
| } |
| |
| dl_resp = (struct rtl_download_response *)skb->data; |
| if (dl_resp->status != 0) { |
| kfree_skb(skb); |
| ret = bt_to_errno(dl_resp->status); |
| goto out; |
| } |
| |
| kfree_skb(skb); |
| data += RTL_FRAG_LEN; |
| } |
| |
| out: |
| kfree(dl_cmd); |
| return ret; |
| } |
| |
| static int btusb_setup_rtl8723a(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = dev_get_drvdata(&hdev->dev); |
| struct usb_device *udev = interface_to_usbdev(data->intf); |
| const struct firmware *fw; |
| int ret; |
| |
| BT_INFO("%s: rtl: loading rtl_bt/rtl8723a_fw.bin", hdev->name); |
| ret = request_firmware(&fw, "rtl_bt/rtl8723a_fw.bin", &udev->dev); |
| if (ret < 0) { |
| BT_ERR("%s: Failed to load rtl_bt/rtl8723a_fw.bin", hdev->name); |
| return ret; |
| } |
| |
| if (fw->size < 8) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| /* Check that the firmware doesn't have the epatch signature |
| * (which is only for RTL8723B and newer). |
| */ |
| if (!memcmp(fw->data, RTL_EPATCH_SIGNATURE, 8)) { |
| BT_ERR("%s: unexpected EPATCH signature!", hdev->name); |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| ret = rtl_download_firmware(hdev, fw->data, fw->size); |
| |
| out: |
| release_firmware(fw); |
| return ret; |
| } |
| |
| static int btusb_setup_rtl8723b(struct hci_dev *hdev, u16 lmp_subver, |
| const char *fw_name) |
| { |
| struct btusb_data *data = dev_get_drvdata(&hdev->dev); |
| struct usb_device *udev = interface_to_usbdev(data->intf); |
| unsigned char *fw_data = NULL; |
| const struct firmware *fw; |
| int ret; |
| |
| BT_INFO("%s: rtl: loading %s", hdev->name, fw_name); |
| ret = request_firmware(&fw, fw_name, &udev->dev); |
| if (ret < 0) { |
| BT_ERR("%s: Failed to load %s", hdev->name, fw_name); |
| return ret; |
| } |
| |
| ret = rtl8723b_parse_firmware(hdev, lmp_subver, fw, &fw_data); |
| if (ret < 0) |
| goto out; |
| |
| ret = rtl_download_firmware(hdev, fw_data, ret); |
| kfree(fw_data); |
| if (ret < 0) |
| goto out; |
| |
| out: |
| release_firmware(fw); |
| return ret; |
| } |
| |
| static int btusb_setup_realtek(struct hci_dev *hdev) |
| { |
| struct sk_buff *skb; |
| struct hci_rp_read_local_version *resp; |
| u16 lmp_subver; |
| |
| skb = btusb_read_local_version(hdev); |
| if (IS_ERR(skb)) |
| return -PTR_ERR(skb); |
| |
| resp = (struct hci_rp_read_local_version *)skb->data; |
| BT_INFO("%s: rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x " |
| "lmp_subver=%04x", hdev->name, resp->hci_ver, resp->hci_rev, |
| resp->lmp_ver, resp->lmp_subver); |
| |
| lmp_subver = le16_to_cpu(resp->lmp_subver); |
| kfree_skb(skb); |
| |
| /* Match a set of subver values that correspond to stock firmware, |
| * which is not compatible with standard btusb. |
| * If matched, upload an alternative firmware that does conform to |
| * standard btusb. Once that firmware is uploaded, the subver changes |
| * to a different value. |
| */ |
| switch (lmp_subver) { |
| case RTL_ROM_LMP_8723A: |
| case RTL_ROM_LMP_3499: |
| return btusb_setup_rtl8723a(hdev); |
| case RTL_ROM_LMP_8723B: |
| return btusb_setup_rtl8723b(hdev, lmp_subver, |
| "rtl_bt/rtl8723b_fw.bin"); |
| case RTL_ROM_LMP_8821A: |
| return btusb_setup_rtl8723b(hdev, lmp_subver, |
| "rtl_bt/rtl8821a_fw.bin"); |
| case RTL_ROM_LMP_8761A: |
| return btusb_setup_rtl8723b(hdev, lmp_subver, |
| "rtl_bt/rtl8761a_fw.bin"); |
| default: |
| BT_INFO("rtl: assuming no firmware upload needed."); |
| 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_ERR("%s Intel firmware file request failed (%d)", |
| hdev->name, ret); |
| return NULL; |
| } |
| |
| BT_ERR("%s failed to open Intel firmware file: %s(%d)", |
| hdev->name, 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_ERR("%s failed to open default Intel fw file: %s", |
| hdev->name, fwname); |
| return NULL; |
| } |
| } |
| |
| BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, 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_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); |
| 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_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); |
| 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_ERR("%s Intel fw corrupted: invalid evt len", |
| hdev->name); |
| 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_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); |
| 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_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", |
| hdev->name, 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_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, |
| le16_to_cpu(cmd->opcode)); |
| kfree_skb(skb); |
| return -EFAULT; |
| } |
| |
| if (memcmp(skb->data, evt_param, evt->plen)) { |
| BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", |
| hdev->name, 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; |
| struct intel_version *ver; |
| |
| const u8 mfg_enable[] = { 0x01, 0x00 }; |
| const u8 mfg_disable[] = { 0x00, 0x00 }; |
| const u8 mfg_reset_deactivate[] = { 0x00, 0x01 }; |
| const u8 mfg_reset_activate[] = { 0x00, 0x02 }; |
| |
| 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_ERR("%s sending initial HCI reset command failed (%ld)", |
| hdev->name, 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. |
| */ |
| skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s reading Intel fw version command failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return PTR_ERR(skb); |
| } |
| |
| if (skb->len != sizeof(*ver)) { |
| BT_ERR("%s Intel version event length mismatch", hdev->name); |
| kfree_skb(skb); |
| return -EIO; |
| } |
| |
| ver = (struct intel_version *)skb->data; |
| if (ver->status) { |
| BT_ERR("%s Intel fw version event failed (%02x)", hdev->name, |
| ver->status); |
| kfree_skb(skb); |
| return -bt_to_errno(ver->status); |
| } |
| |
| BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", |
| hdev->name, 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 deivce again. |
| */ |
| if (ver->fw_patch_num) { |
| BT_INFO("%s: Intel device is already patched. patch num: %02x", |
| hdev->name, ver->fw_patch_num); |
| kfree_skb(skb); |
| btintel_check_bdaddr(hdev); |
| return 0; |
| } |
| |
| /* 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) { |
| kfree_skb(skb); |
| btintel_check_bdaddr(hdev); |
| return 0; |
| } |
| fw_ptr = fw->data; |
| |
| kfree_skb(skb); |
| |
| /* This Intel specific command enables the manufacturer mode of the |
| * controller. |
| * |
| * Only while this mode is enabled, the driver can download the |
| * firmware patch data and configuration parameters. |
| */ |
| skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s entering Intel manufacturer mode failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| release_firmware(fw); |
| return PTR_ERR(skb); |
| } |
| |
| if (skb->data[0]) { |
| u8 evt_status = skb->data[0]; |
| |
| BT_ERR("%s enable Intel manufacturer mode event failed (%02x)", |
| hdev->name, evt_status); |
| kfree_skb(skb); |
| release_firmware(fw); |
| return -bt_to_errno(evt_status); |
| } |
| kfree_skb(skb); |
| |
| 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. |
| */ |
| skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate), |
| mfg_reset_activate, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return PTR_ERR(skb); |
| } |
| kfree_skb(skb); |
| |
| BT_INFO("%s: Intel Bluetooth firmware patch completed and activated", |
| hdev->name); |
| |
| btintel_check_bdaddr(hdev); |
| return 0; |
| |
| exit_mfg_disable: |
| /* Disable the manufacturer mode without reset */ |
| skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable, |
| HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return PTR_ERR(skb); |
| } |
| kfree_skb(skb); |
| |
| BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name); |
| |
| btintel_check_bdaddr(hdev); |
| return 0; |
| |
| exit_mfg_deactivate: |
| release_firmware(fw); |
| |
| /* Patching failed. Disable the manufacturer mode with reset and |
| * deactivate the downloaded firmware patches. |
| */ |
| skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate), |
| mfg_reset_deactivate, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return PTR_ERR(skb); |
| } |
| kfree_skb(skb); |
| |
| BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated", |
| hdev->name); |
| |
| 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_ATOMIC); |
| if (!skb) |
| return -ENOMEM; |
| |
| hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr)); |
| hdr->evt = HCI_EV_CMD_COMPLETE; |
| hdr->plen = sizeof(*evt) + 1; |
| |
| evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt)); |
| evt->ncmd = 0x01; |
| evt->opcode = cpu_to_le16(opcode); |
| |
| *skb_put(skb, 1) = 0x00; |
| |
| bt_cb(skb)->pkt_type = 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)) { |
| smp_mb__after_atomic(); |
| 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)) { |
| smp_mb__after_atomic(); |
| 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); |
| |
| if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| return -EBUSY; |
| |
| switch (bt_cb(skb)->pkt_type) { |
| 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 int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type, |
| u32 plen, const void *param) |
| { |
| while (plen > 0) { |
| struct sk_buff *skb; |
| u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen; |
| |
| cmd_param[0] = fragment_type; |
| memcpy(cmd_param + 1, param, fragment_len); |
| |
| skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1, |
| cmd_param, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) |
| return PTR_ERR(skb); |
| |
| kfree_skb(skb); |
| |
| plen -= fragment_len; |
| param += fragment_len; |
| } |
| |
| return 0; |
| } |
| |
| static void btusb_intel_version_info(struct hci_dev *hdev, |
| struct intel_version *ver) |
| { |
| const char *variant; |
| |
| switch (ver->fw_variant) { |
| case 0x06: |
| variant = "Bootloader"; |
| break; |
| case 0x23: |
| variant = "Firmware"; |
| break; |
| default: |
| return; |
| } |
| |
| BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name, |
| variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f, |
| ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy); |
| } |
| |
| static int btusb_setup_intel_new(struct hci_dev *hdev) |
| { |
| static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01, |
| 0x00, 0x08, 0x04, 0x00 }; |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct sk_buff *skb; |
| struct intel_version *ver; |
| struct intel_boot_params *params; |
| const struct firmware *fw; |
| const u8 *fw_ptr; |
| u32 frag_len; |
| char fwname[64]; |
| ktime_t calltime, delta, rettime; |
| unsigned long long duration; |
| int err; |
| |
| BT_DBG("%s", hdev->name); |
| |
| 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. |
| */ |
| skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s: Reading Intel version information failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return PTR_ERR(skb); |
| } |
| |
| if (skb->len != sizeof(*ver)) { |
| BT_ERR("%s: Intel version event size mismatch", hdev->name); |
| kfree_skb(skb); |
| return -EILSEQ; |
| } |
| |
| ver = (struct intel_version *)skb->data; |
| if (ver->status) { |
| BT_ERR("%s: Intel version command failure (%02x)", |
| hdev->name, ver->status); |
| err = -bt_to_errno(ver->status); |
| kfree_skb(skb); |
| 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_ERR("%s: Unsupported Intel hardware platform (%u)", |
| hdev->name, ver->hw_platform); |
| kfree_skb(skb); |
| return -EINVAL; |
| } |
| |
| /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is |
| * supported by this firmware loading method. This check has been |
| * put in place to ensure correct forward compatibility options |
| * when newer hardware variants come along. |
| */ |
| if (ver->hw_variant != 0x0b) { |
| BT_ERR("%s: Unsupported Intel hardware variant (%u)", |
| hdev->name, ver->hw_variant); |
| kfree_skb(skb); |
| return -EINVAL; |
| } |
| |
| btusb_intel_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) { |
| kfree_skb(skb); |
| 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_ERR("%s: Unsupported Intel firmware variant (%u)", |
| hdev->name, ver->fw_variant); |
| kfree_skb(skb); |
| return -ENODEV; |
| } |
| |
| kfree_skb(skb); |
| |
| /* Read the secure boot parameters to identify the operating |
| * details of the bootloader. |
| */ |
| skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s: Reading Intel boot parameters failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return PTR_ERR(skb); |
| } |
| |
| if (skb->len != sizeof(*params)) { |
| BT_ERR("%s: Intel boot parameters size mismatch", hdev->name); |
| kfree_skb(skb); |
| return -EILSEQ; |
| } |
| |
| params = (struct intel_boot_params *)skb->data; |
| if (params->status) { |
| BT_ERR("%s: Intel boot parameters command failure (%02x)", |
| hdev->name, params->status); |
| err = -bt_to_errno(params->status); |
| kfree_skb(skb); |
| return err; |
| } |
| |
| BT_INFO("%s: Device revision is %u", hdev->name, |
| le16_to_cpu(params->dev_revid)); |
| |
| BT_INFO("%s: Secure boot is %s", hdev->name, |
| params->secure_boot ? "enabled" : "disabled"); |
| |
| BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name, |
| params->min_fw_build_nn, params->min_fw_build_cw, |
| 2000 + params->min_fw_build_yy); |
| |
| /* 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_ERR("%s: Unsupported Intel firmware loading method (%u)", |
| hdev->name, params->limited_cce); |
| kfree_skb(skb); |
| 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_INFO("%s: No device address configured", hdev->name); |
| 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. |
| * |
| * Currently this bootloader support is limited to hardware variant |
| * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b). |
| */ |
| snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi", |
| le16_to_cpu(params->dev_revid)); |
| |
| err = request_firmware(&fw, fwname, &hdev->dev); |
| if (err < 0) { |
| BT_ERR("%s: Failed to load Intel firmware file (%d)", |
| hdev->name, err); |
| kfree_skb(skb); |
| return err; |
| } |
| |
| BT_INFO("%s: Found device firmware: %s", hdev->name, fwname); |
| |
| kfree_skb(skb); |
| |
| if (fw->size < 644) { |
| BT_ERR("%s: Invalid size of firmware file (%zu)", |
| hdev->name, fw->size); |
| err = -EBADF; |
| goto done; |
| } |
| |
| set_bit(BTUSB_DOWNLOADING, &data->flags); |
| |
| /* Start the firmware download transaction with the Init fragment |
| * represented by the 128 bytes of CSS header. |
| */ |
| err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data); |
| if (err < 0) { |
| BT_ERR("%s: Failed to send firmware header (%d)", |
| hdev->name, err); |
| goto done; |
| } |
| |
| /* Send the 256 bytes of public key information from the firmware |
| * as the PKey fragment. |
| */ |
| err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128); |
| if (err < 0) { |
| BT_ERR("%s: Failed to send firmware public key (%d)", |
| hdev->name, err); |
| goto done; |
| } |
| |
| /* Send the 256 bytes of signature information from the firmware |
| * as the Sign fragment. |
| */ |
| err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388); |
| if (err < 0) { |
| BT_ERR("%s: Failed to send firmware signature (%d)", |
| hdev->name, err); |
| goto done; |
| } |
| |
| fw_ptr = fw->data + 644; |
| frag_len = 0; |
| |
| while (fw_ptr - fw->data < fw->size) { |
| struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); |
| |
| frag_len += sizeof(*cmd) + cmd->plen; |
| |
| /* The paramter length of the secure send command requires |
| * a 4 byte alignment. It happens so that the firmware file |
| * contains proper Intel_NOP commands to align the fragments |
| * as needed. |
| * |
| * Send set of commands with 4 byte alignment from the |
| * firmware data buffer as a single Data fragement. |
| */ |
| if (!(frag_len % 4)) { |
| err = btusb_intel_secure_send(hdev, 0x01, frag_len, |
| fw_ptr); |
| if (err < 0) { |
| BT_ERR("%s: Failed to send firmware data (%d)", |
| hdev->name, err); |
| goto done; |
| } |
| |
| fw_ptr += frag_len; |
| frag_len = 0; |
| } |
| } |
| |
| set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); |
| |
| BT_INFO("%s: Waiting for firmware download to complete", hdev->name); |
| |
| /* 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 == 1) { |
| BT_ERR("%s: Firmware loading interrupted", hdev->name); |
| err = -EINTR; |
| goto done; |
| } |
| |
| if (err) { |
| BT_ERR("%s: Firmware loading timeout", hdev->name); |
| err = -ETIMEDOUT; |
| goto done; |
| } |
| |
| if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { |
| BT_ERR("%s: Firmware loading failed", hdev->name); |
| err = -ENOEXEC; |
| goto done; |
| } |
| |
| rettime = ktime_get(); |
| delta = ktime_sub(rettime, calltime); |
| duration = (unsigned long long) ktime_to_ns(delta) >> 10; |
| |
| BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration); |
| |
| done: |
| release_firmware(fw); |
| |
| if (err < 0) |
| return err; |
| |
| calltime = ktime_get(); |
| |
| set_bit(BTUSB_BOOTING, &data->flags); |
| |
| skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param, |
| HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) |
| return PTR_ERR(skb); |
| |
| kfree_skb(skb); |
| |
| /* 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_INFO("%s: Waiting for device to boot", hdev->name); |
| |
| err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, |
| TASK_INTERRUPTIBLE, |
| msecs_to_jiffies(1000)); |
| |
| if (err == 1) { |
| BT_ERR("%s: Device boot interrupted", hdev->name); |
| return -EINTR; |
| } |
| |
| if (err) { |
| BT_ERR("%s: Device boot timeout", hdev->name); |
| return -ETIMEDOUT; |
| } |
| |
| rettime = ktime_get(); |
| delta = ktime_sub(rettime, calltime); |
| duration = (unsigned long long) ktime_to_ns(delta) >> 10; |
| |
| BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration); |
| |
| clear_bit(BTUSB_BOOTLOADER, &data->flags); |
| |
| return 0; |
| } |
| |
| static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code) |
| { |
| struct sk_buff *skb; |
| u8 type = 0x00; |
| |
| BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code); |
| |
| skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s: Reset after hardware error failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return; |
| } |
| kfree_skb(skb); |
| |
| skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| BT_ERR("%s: Retrieving Intel exception info failed (%ld)", |
| hdev->name, PTR_ERR(skb)); |
| return; |
| } |
| |
| if (skb->len != 13) { |
| BT_ERR("%s: Exception info size mismatch", hdev->name); |
| kfree_skb(skb); |
| return; |
| } |
| |
| if (skb->data[0] != 0x00) { |
| BT_ERR("%s: Exception info command failure (%02x)", |
| hdev->name, skb->data[0]); |
| kfree_skb(skb); |
| return; |
| } |
| |
| BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1)); |
| |
| kfree_skb(skb); |
| } |
| |
| static int btusb_shutdown_intel(struct hci_dev *hdev) |
| { |
| struct sk_buff *skb; |
| long ret; |
| |
| /* 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_ERR("%s: turning off Intel device LED failed (%ld)", |
| hdev->name, ret); |
| return ret; |
| } |
| kfree_skb(skb); |
| |
| return 0; |
| } |
| |
| 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_ERR("%s: changing Marvell device address failed (%ld)", |
| hdev->name, 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_ERR("%s: Change address command failed (%ld)", |
| hdev->name, 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 */ |
| { 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 hci_dev *hdev, u8 request, |
| void *data, u16 size) |
| { |
| struct btusb_data *btdata = hci_get_drvdata(hdev); |
| struct usb_device *udev = btdata->udev; |
| 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) { |
| BT_ERR("%s: Failed to access otp area (%d)", hdev->name, 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_ERR("%s: Failed to send headers (%d)", hdev->name, 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_ERR("%s: Failed to send body at %zd of %zd (%d)", |
| hdev->name, sent, firmware->size, err); |
| break; |
| } |
| |
| if (size != len) { |
| BT_ERR("%s: Failed to get bulk buffer", hdev->name); |
| 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_ERR("%s: failed to request rampatch file: %s (%d)", |
| hdev->name, fwname, err); |
| return err; |
| } |
| |
| BT_INFO("%s: using rampatch file: %s", hdev->name, 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_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x " |
| "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom, |
| ver_patch); |
| |
| if (rver_rom != ver_rom || rver_patch <= ver_patch) { |
| BT_ERR("%s: rampatch file version did not match with firmware", |
| hdev->name); |
| 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_ERR("%s: failed to request NVM file: %s (%d)", |
| hdev->name, fwname, err); |
| return err; |
| } |
| |
| BT_INFO("%s: using NVM file: %s", hdev->name, fwname); |
| |
| err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); |
| |
| release_firmware(fw); |
| |
| return err; |
| } |
| |
| static int btusb_setup_qca(struct hci_dev *hdev) |
| { |
| 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(hdev, QCA_GET_TARGET_VERSION, &ver, |
| sizeof(ver)); |
| if (err < 0) |
| return err; |
| |
| ver_rom = le32_to_cpu(ver.rom_version); |
| for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { |
| if (ver_rom == qca_devices_table[i].rom_version) |
| info = &qca_devices_table[i]; |
| } |
| if (!info) { |
| BT_ERR("%s: don't support firmware rome 0x%x", hdev->name, |
| ver_rom); |
| return -ENODEV; |
| } |
| |
| err = btusb_qca_send_vendor_req(hdev, 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 |