/*
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*
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* Realtek Bluetooth USB driver
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <net/bluetooth/hci_core.h>
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#include <linux/list.h>
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/***********************************
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** Realtek - For coexistence **
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***********************************/
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#define BTRTL_HCIUSB 0
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#define BTRTL_HCIUART 1
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#define BTRTL_HCI_IF BTRTL_HCIUSB
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#define TRUE 1
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#define FALSE 0
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#define CONNECT_PORT 30001
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#define CONNECT_PORT_WIFI 30000
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#define invite_req "INVITE_REQ"
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#define invite_rsp "INVITE_RSP"
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#define attend_req "ATTEND_REQ"
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#define attend_ack "ATTEND_ACK"
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#define wifi_leave "WIFI_LEAVE"
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#define leave_ack "LEAVE_ACK"
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#define bt_leave "BT_LEAVE"
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#define HCI_OP_PERIODIC_INQ 0x0403
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#define HCI_EV_LE_META 0x3e
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#define HCI_EV_LE_CONN_COMPLETE 0x01
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#define HCI_EV_LE_CONN_UPDATE_COMPLETE 0x03
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#define HCI_EV_LE_ENHANCED_CONN_COMPLETE 0x0a
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//vendor cmd to fw
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#define HCI_VENDOR_ENABLE_PROFILE_REPORT_COMMAND 0xfc18
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#define HCI_VENDOR_SET_PROFILE_REPORT_COMMAND 0xfc19
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#define HCI_VENDOR_MAILBOX_CMD 0xfc8f
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#define HCI_VENDOR_SET_BITPOOL 0xfc51
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//subcmd to fw
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#define HCI_VENDOR_SUB_CMD_WIFI_CHANNEL_AND_BANDWIDTH_CMD 0x11
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#define HCI_VENDOR_SUB_CMD_WIFI_FORCE_TX_POWER_CMD 0x17
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#define HCI_VENDOR_SUB_CMD_BT_ENABLE_IGNORE_WLAN_ACT_CMD 0x1B
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#define HCI_VENDOR_SUB_CMD_BT_REPORT_CONN_SCO_INQ_INFO 0x23
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#define HCI_VENDOR_SUB_CMD_BT_AUTO_REPORT_STATUS_INFO 0x27
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#define HCI_VENDOR_SUB_CMD_BT_AUTO_REPORT_ENABLE 0x28
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#define HCI_VENDOR_SUB_CMD_BT_SET_TXRETRY_REPORT_PARAM 0x29
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#define HCI_VENDOR_SUB_CMD_BT_SET_PTATABLE 0x2A
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#define HCI_VENDOR_SUB_CMD_SET_BT_PSD_MODE 0x31
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#define HCI_VENDOR_SUB_CMD_SET_BT_LNA_CONSTRAINT 0x32
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#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_L 0x40
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#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_M 0x41
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#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_H 0x42
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#define HCI_VENDOR_SUB_CMD_RD_REG_REQ 0x43
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#define HCI_VENDOR_SUB_CMD_WR_REG_REQ 0x44
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#define HCI_EV_VENDOR_SPECIFIC 0xff
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//sub event from fw start
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#define HCI_VENDOR_PTA_REPORT_EVENT 0x24
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#define HCI_VENDOR_PTA_AUTO_REPORT_EVENT 0x25
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//vendor cmd to wifi driver
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#define HCI_GRP_VENDOR_SPECIFIC (0x3f << 10)
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#define HCI_OP_HCI_EXTENSION_VERSION_NOTIFY (0x0100 | HCI_GRP_VENDOR_SPECIFIC)
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#define HCI_OP_BT_OPERATION_NOTIFY (0x0102 | HCI_GRP_VENDOR_SPECIFIC)
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#define HCI_OP_HCI_BT_INFO_NOTIFY (0x0106 | HCI_GRP_VENDOR_SPECIFIC)
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#define HCI_OP_HCI_BT_COEX_NOTIFY (0x0107 | HCI_GRP_VENDOR_SPECIFIC)
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#define HCI_OP_HCI_BT_PATCH_VER_NOTIFY (0x0108 | HCI_GRP_VENDOR_SPECIFIC)
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#define HCI_OP_HCI_BT_AFH_MAP_NOTIFY (0x0109 | HCI_GRP_VENDOR_SPECIFIC)
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#define HCI_OP_HCI_BT_REGISTER_VALUE_NOTIFY (0x010a | HCI_GRP_VENDOR_SPECIFIC)
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//bt info reason to wifi
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#define HOST_RESPONSE 0 //Host response when receive the BT Info Control Event
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#define POLLING_RESPONSE 1 //The BT Info response for polling by BT firmware.
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#define AUTO_REPORT 2 //BT auto report by BT firmware.
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#define STACK_REPORT_WHILE_DEVICE_D2 3 //Stack report when BT firmware is under power save state(ex:D2)
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// vendor event from wifi
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#define RTK_HS_EXTENSION_EVENT_WIFI_SCAN 0x01
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#define RTK_HS_EXTENSION_EVENT_RADIO_STATUS_NOTIFY 0x02
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#define RTK_HS_EXTENSION_EVENT_HCI_BT_INFO_CONTROL 0x03
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#define RTK_HS_EXTENSION_EVENT_HCI_BT_COEX_CONTROL 0x04
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//op code from wifi
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#define BT_PATCH_VERSION_QUERY 0x00
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#define IGNORE_WLAN_ACTIVE_CONTROL 0x01
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#define LNA_CONSTRAIN_CONTROL 0x02
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#define BT_POWER_DECREASE_CONTROL 0x03
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#define BT_PSD_MODE_CONTROL 0x04
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#define WIFI_BW_CHNL_NOTIFY 0x05
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#define QUERY_BT_AFH_MAP 0x06
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#define BT_REGISTER_ACCESS 0x07
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//bt operation to notify
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#define BT_OPCODE_NONE 0
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#define BT_OPCODE_INQUIRY_START 1
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#define BT_OPCODE_INQUIRY_END 2
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#define BT_OPCODE_PAGE_START 3
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#define BT_OPCODE_PAGE_SUCCESS_END 4
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#define BT_OPCODE_PAGE_UNSUCCESS_END 5
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#define BT_OPCODE_PAIR_START 6
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#define BT_OPCODE_PAIR_END 7
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#define BT_OPCODE_ENABLE_BT 8
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#define BT_OPCODE_DISABLE_BT 9
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#define HCI_EXTENSION_VERSION 0x0004
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#define HCI_CMD_PREAMBLE_SIZE 3
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#define PAN_PACKET_COUNT 5
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#define STREAM_TO_UINT16(u16, p) {u16 = ((uint16_t)(*(p)) + (((uint16_t)(*((p) + 1))) << 8)); (p) += 2;}
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#define UINT16_TO_STREAM(p, u16) {*(p)++ = (uint8_t)(u16); *(p)++ = (uint8_t)((u16) >> 8);}
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#define PSM_SDP 0x0001
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#define PSM_RFCOMM 0x0003
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#define PSM_PAN 0x000F
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#define PSM_HID 0x0011
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#define PSM_HID_INT 0x0013
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#define PSM_AVCTP 0x0017
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#define PSM_AVDTP 0x0019
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#define PSM_FTP 0x1001
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#define PSM_BIP 0x1003
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#define PSM_OPP 0x1015
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//--add more if needed--//
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enum {
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profile_sco = 0,
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profile_hid = 1,
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profile_a2dp = 2,
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profile_pan = 3,
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profile_hid_interval = 4,
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profile_hogp = 5,
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profile_voice = 6,
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profile_sink = 7,
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profile_max = 8
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};
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#define A2DP_SIGNAL 0x01
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#define A2DP_MEDIA 0x02
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//profile info data
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typedef struct {
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struct list_head list;
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uint16_t handle;
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uint16_t psm;
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uint16_t dcid;
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uint16_t scid;
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uint8_t profile_index;
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uint8_t flags;
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} rtk_prof_info, *prtk_prof_info;
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//profile info for each connection
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typedef struct rtl_hci_conn {
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struct list_head list;
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uint16_t handle;
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uint8_t type; // 0:l2cap, 1:sco/esco, 2:le
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uint8_t profile_bitmap;
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int8_t profile_refcount[8];
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} rtk_conn_prof, *prtk_conn_prof;
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#ifdef RTB_SOFTWARE_MAILBOX
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struct rtl_btinfo {
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u8 cmd;
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u8 len;
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u8 data[6];
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};
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#define RTL_BTINFO_LEN (sizeof(struct rtl_btinfo))
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/* typedef struct {
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* uint8_t cmd_index;
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* uint8_t cmd_length;
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* uint8_t link_status;
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* uint8_t retry_cnt;
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* uint8_t rssi;
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* uint8_t mailbox_info;
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* uint16_t acl_throughput;
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* } hci_linkstatus_report; */
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typedef struct {
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uint8_t type;
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uint32_t offset;
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uint32_t value;
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} hci_mailbox_register;
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struct rtl_btinfo_ctl {
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uint8_t polling_enable;
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uint8_t polling_time;
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uint8_t autoreport_enable;
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};
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#endif /* RTB_SOFTWARE_MAILBOX */
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#define MAX_LEN_OF_HCI_EV 32
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#define NUM_RTL_HCI_EV 32
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struct rtl_hci_ev {
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__u8 data[MAX_LEN_OF_HCI_EV];
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__u16 len;
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struct list_head list;
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};
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#define L2_MAX_SUBSEC_LEN 128
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#define L2_MAX_PKTS 16
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struct rtl_l2_buff {
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__u8 data[L2_MAX_SUBSEC_LEN];
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__u16 len;
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__u16 out;
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struct list_head list;
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};
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struct rtl_coex_struct {
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struct list_head conn_hash; //hash for connections
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struct list_head profile_list; //hash for profile info
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struct hci_dev *hdev;
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#ifdef RTB_SOFTWARE_MAILBOX
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struct socket *udpsock;
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struct sockaddr_in addr;
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struct sockaddr_in wifi_addr;
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struct timer_list polling_timer;
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#endif
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struct timer_list a2dp_count_timer;
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struct timer_list pan_count_timer;
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struct timer_list hogp_count_timer;
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#ifdef RTB_SOFTWARE_MAILBOX
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struct workqueue_struct *sock_wq;
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struct delayed_work sock_work;
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#endif
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struct workqueue_struct *fw_wq;
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struct delayed_work fw_work;
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struct delayed_work l2_work;
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#ifdef RTB_SOFTWARE_MAILBOX
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struct sock *sk;
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#endif
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struct urb *urb;
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spinlock_t spin_lock_sock;
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spinlock_t spin_lock_profile;
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uint32_t a2dp_packet_count;
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uint32_t pan_packet_count;
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uint32_t hogp_packet_count;
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uint32_t voice_packet_count;
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uint8_t profile_bitmap;
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uint8_t profile_status;
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int8_t profile_refcount[8];
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uint8_t ispairing;
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uint8_t isinquirying;
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uint8_t ispaging;
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#ifdef RTB_SOFTWARE_MAILBOX
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uint8_t wifi_state;
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uint8_t autoreport;
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uint8_t polling_enable;
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uint8_t polling_interval;
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uint8_t piconet_id;
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uint8_t mode;
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uint8_t afh_map[10];
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#endif
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uint16_t hci_reversion;
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uint16_t lmp_subversion;
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#ifdef RTB_SOFTWARE_MAILBOX
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uint8_t wifi_on;
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uint8_t sock_open;
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#endif
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unsigned long cmd_last_tx;
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/* hci ev buff */
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struct list_head ev_used_list;
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struct list_head ev_free_list;
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spinlock_t rxlock;
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__u8 pkt_type;
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__u16 expect;
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__u8 *tbuff;
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__u16 elen;
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__u8 back_buff[HCI_MAX_EVENT_SIZE];
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/* l2cap rx buff */
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struct list_head l2_used_list;
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struct list_head l2_free_list;
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/* buff addr and size */
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spinlock_t buff_lock;
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unsigned long pages_addr;
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unsigned long buff_size;
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#define RTL_COEX_RUNNING (1 << 0)
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unsigned long flags;
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};
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#ifdef __LITTLE_ENDIAN
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struct sbc_frame_hdr {
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uint8_t syncword:8; /* Sync word */
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uint8_t subbands:1; /* Subbands */
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uint8_t allocation_method:1; /* Allocation method */
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uint8_t channel_mode:2; /* Channel mode */
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uint8_t blocks:2; /* Blocks */
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uint8_t sampling_frequency:2; /* Sampling frequency */
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uint8_t bitpool:8; /* Bitpool */
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uint8_t crc_check:8; /* CRC check */
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} __attribute__ ((packed));
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/* NOTE: The code is copied from pa.
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* only the bit field in 8-bit is affected by endian, not the 16-bit or 32-bit.
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* why?
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*/
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struct rtp_header {
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unsigned cc:4;
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unsigned x:1;
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unsigned p:1;
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unsigned v:2;
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unsigned pt:7;
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unsigned m:1;
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uint16_t sequence_number;
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uint32_t timestamp;
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uint32_t ssrc;
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uint32_t csrc[0];
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} __attribute__ ((packed));
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#else
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/* big endian */
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struct sbc_frame_hdr {
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uint8_t syncword:8; /* Sync word */
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uint8_t sampling_frequency:2; /* Sampling frequency */
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uint8_t blocks:2; /* Blocks */
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uint8_t channel_mode:2; /* Channel mode */
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uint8_t allocation_method:1; /* Allocation method */
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uint8_t subbands:1; /* Subbands */
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uint8_t bitpool:8; /* Bitpool */
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uint8_t crc_check:8; /* CRC check */
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} __attribute__ ((packed));
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struct rtp_header {
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unsigned v:2;
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unsigned p:1;
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unsigned x:1;
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unsigned cc:4;
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unsigned m:1;
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unsigned pt:7;
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uint16_t sequence_number;
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uint32_t timestamp;
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uint32_t ssrc;
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uint32_t csrc[0];
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} __attribute__ ((packed));
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#endif /* __LITTLE_ENDIAN */
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void rtk_btcoex_parse_event(uint8_t *buffer, int count);
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void rtk_btcoex_parse_cmd(uint8_t *buffer, int count);
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void rtk_btcoex_parse_l2cap_data_tx(uint8_t *buffer, int count);
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void rtk_btcoex_parse_l2cap_data_rx(uint8_t *buffer, int count);
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void rtk_btcoex_open(struct hci_dev *hdev);
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void rtk_btcoex_close(void);
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void rtk_btcoex_probe(struct hci_dev *hdev);
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void rtk_btcoex_init(void);
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void rtk_btcoex_exit(void);
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