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- /*
- *
- * 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 },
- /* 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 },
- /* 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, 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 },
- { USB_DEVICE(0x0cf3, 0x3004), .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 */
- { 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 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 (err < 0)
- return err;
- }
- return 0;
- }
- static int btusb_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
- {
- struct usb_endpoint_descriptor *ep_desc;
- struct btusb_data *data;
- struct hci_dev *hdev;
- 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)
- return -ENODEV;
- 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)
- 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);
- 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_BREDR;
- data->hdev = hdev;
- SET_HCIDEV_DEV(hdev, &intf->dev);
- hdev->open = btusb_open;
- hdev->close = btusb_close;
- hdev->flush = btusb_flush;
- hdev->send = btusb_send_frame;
- hdev->notify = btusb_notify;
- if (id->driver_info & BTUSB_BCM92035)
- hdev->setup = btusb_setup_bcm92035;
- #ifdef CONFIG_BT_HCIBTUSB_BCM
- if (id->driver_info & BTUSB_BCM_PATCHRAM) {
- hdev->setup = btbcm_setup_patchram;
- hdev->set_bdaddr = btbcm_set_bdaddr;
- }
- if (id->driver_info & BTUSB_BCM_APPLE)
- hdev->setup = btbcm_setup_apple;
- #endif
- if (id->driver_info & BTUSB_INTEL) {
- hdev->setup = btusb_setup_intel;
- hdev->shutdown = btusb_shutdown_intel;
- hdev->set_bdaddr = btintel_set_bdaddr;
- set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
- set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
- }
- if (id->driver_info & BTUSB_INTEL_NEW) {
- hdev->send = btusb_send_frame_intel;
- hdev->setup = btusb_setup_intel_new;
- hdev->hw_error = btusb_hw_error_intel;
- hdev->set_bdaddr = btintel_set_bdaddr;
- set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
- }
- if (id->driver_info & BTUSB_MARVELL)
- hdev->set_bdaddr = btusb_set_bdaddr_marvell;
- 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)
- set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
- if (id->driver_info & BTUSB_ATH3012) {
- 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;
- }
- if (id->driver_info & BTUSB_REALTEK)
- hdev->setup = btusb_setup_realtek;
- if (id->driver_info & BTUSB_AMP) {
- /* AMP controllers do not support SCO packets */
- data->isoc = NULL;
- } else {
- /* Interface numbers are hardcoded in the specification */
- data->isoc = usb_ifnum_to_if(data->udev, 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)
- 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);
- hci_free_dev(hdev);
- return err;
- }
- }
- if (data->isoc) {
- err = usb_driver_claim_interface(&btusb_driver,
- data->isoc, data);
- if (err < 0) {
- hci_free_dev(hdev);
- return err;
- }
- }
- err = hci_register_dev(hdev);
- if (err < 0) {
- hci_free_dev(hdev);
- return err;
- }
- usb_set_intfdata(intf, data);
- return 0;
- }
- 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);
- hci_unregister_dev(hdev);
- if (intf == data->isoc)
- usb_driver_release_interface(&btusb_driver, data->intf);
- else if (data->isoc)
- usb_driver_release_interface(&btusb_driver, data->isoc);
- 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);
- return 0;
- }
- static void play_deferred(struct btusb_data *data)
- {
- struct urb *urb;
- int err;
- while ((urb = usb_get_from_anchor(&data->deferred))) {
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err < 0)
- break;
- data->tx_in_flight++;
- }
- usb_scuttle_anchored_urbs(&data->deferred);
- }
- 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;
- 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(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");
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