^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Realtek Bluetooth USB driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * it under the terms of the GNU General Public License as published by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * the Free Software Foundation; either version 2 of the License, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * This program is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * GNU General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * You should have received a copy of the GNU General Public License
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * along with this program; if not, write to the Free Software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/cdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/poll.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/version.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/firmware.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/suspend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <net/bluetooth/bluetooth.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <net/bluetooth/hci_core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <net/bluetooth/hci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /* #define HCI_VERSION_CODE KERNEL_VERSION(3, 14, 41) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define HCI_VERSION_CODE LINUX_VERSION_CODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #ifdef CONFIG_BTCOEX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define BTCOEX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /***********************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) ** Realtek - For rtk_btusb driver **
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) ***********************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #ifdef CONFIG_BTUSB_WAKEUP_HOST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define BTUSB_WAKEUP_HOST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define URB_CANCELING_DELAY_MS 10 // Added by Realtek
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #if HCI_VERSION_CODE > KERNEL_VERSION(2, 6, 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define HDEV_BUS hdev->bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define HDEV_BUS hdev->type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #if HCI_VERSION_CODE < KERNEL_VERSION(2, 6, 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define NUM_REASSEMBLY 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #if HCI_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define GET_DRV_DATA(x) hci_get_drvdata(x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define GET_DRV_DATA(x) x->driver_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #if HCI_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define SCO_NUM hdev->conn_hash.sco_num
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define SCO_NUM hci_conn_num(hdev, SCO_LINK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) int patch_add(struct usb_interface *intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) void patch_remove(struct usb_interface *intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int download_patch(struct usb_interface *intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int set_btoff(struct usb_interface *intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) void print_event(struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) void print_command(struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) void print_acl(struct sk_buff *skb, int dataOut);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #if HCI_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) int btusb_send_frame(struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #define BTUSB_MAX_ISOC_FRAMES 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) #define BTUSB_INTR_RUNNING 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define BTUSB_BULK_RUNNING 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define BTUSB_ISOC_RUNNING 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define BTUSB_SUSPENDING 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define BTUSB_DID_ISO_RESUME 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct btusb_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct hci_dev *hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct usb_device *udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct usb_interface *intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct usb_interface *isoc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) struct work_struct waker;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) struct usb_anchor tx_anchor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct usb_anchor intr_anchor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct usb_anchor bulk_anchor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct usb_anchor isoc_anchor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct usb_anchor deferred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) int tx_in_flight;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) spinlock_t txlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #if HCI_VERSION_CODE >= KERNEL_VERSION(3, 18, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) spinlock_t rxlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) struct sk_buff *evt_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) struct sk_buff *acl_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct sk_buff *sco_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct usb_endpoint_descriptor *intr_ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct usb_endpoint_descriptor *bulk_tx_ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct usb_endpoint_descriptor *bulk_rx_ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct usb_endpoint_descriptor *isoc_tx_ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) struct usb_endpoint_descriptor *isoc_rx_ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) __u8 cmdreq_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) unsigned int sco_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #if HCI_VERSION_CODE >= KERNEL_VERSION(5, 8, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) unsigned int air_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) int isoc_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) int suspend_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #if HCI_VERSION_CODE >= KERNEL_VERSION(3, 18, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) int (*recv_bulk) (struct btusb_data * data, void *buffer, int count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) struct notifier_block pm_notifier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) void *context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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