/*
*
* Realtek Bluetooth USB driver
*
*
* 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 <net/bluetooth/hci_core.h>
#include <linux/list.h>
/***********************************
** Realtek - For coexistence **
***********************************/
#define BTRTL_HCIUSB 0
#define BTRTL_HCIUART 1
#define BTRTL_HCI_IF BTRTL_HCIUSB
#define TRUE 1
#define FALSE 0
#define CONNECT_PORT 30001
#define CONNECT_PORT_WIFI 30000
#define invite_req "INVITE_REQ"
#define invite_rsp "INVITE_RSP"
#define attend_req "ATTEND_REQ"
#define attend_ack "ATTEND_ACK"
#define wifi_leave "WIFI_LEAVE"
#define leave_ack "LEAVE_ACK"
#define bt_leave "BT_LEAVE"
#define HCI_OP_PERIODIC_INQ 0x0403
#define HCI_EV_LE_META 0x3e
#define HCI_EV_LE_CONN_COMPLETE 0x01
#define HCI_EV_LE_CONN_UPDATE_COMPLETE 0x03
//vendor cmd to fw
#define HCI_VENDOR_ENABLE_PROFILE_REPORT_COMMAND 0xfc18
#define HCI_VENDOR_SET_PROFILE_REPORT_COMMAND 0xfc19
#define HCI_VENDOR_MAILBOX_CMD 0xfc8f
#define HCI_VENDOR_SET_BITPOOL 0xfc51
//subcmd to fw
#define HCI_VENDOR_SUB_CMD_WIFI_CHANNEL_AND_BANDWIDTH_CMD 0x11
#define HCI_VENDOR_SUB_CMD_WIFI_FORCE_TX_POWER_CMD 0x17
#define HCI_VENDOR_SUB_CMD_BT_ENABLE_IGNORE_WLAN_ACT_CMD 0x1B
#define HCI_VENDOR_SUB_CMD_BT_REPORT_CONN_SCO_INQ_INFO 0x23
#define HCI_VENDOR_SUB_CMD_BT_AUTO_REPORT_STATUS_INFO 0x27
#define HCI_VENDOR_SUB_CMD_BT_AUTO_REPORT_ENABLE 0x28
#define HCI_VENDOR_SUB_CMD_BT_SET_TXRETRY_REPORT_PARAM 0x29
#define HCI_VENDOR_SUB_CMD_BT_SET_PTATABLE 0x2A
#define HCI_VENDOR_SUB_CMD_SET_BT_PSD_MODE 0x31
#define HCI_VENDOR_SUB_CMD_SET_BT_LNA_CONSTRAINT 0x32
#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_L 0x40
#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_M 0x41
#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_H 0x42
#define HCI_VENDOR_SUB_CMD_RD_REG_REQ 0x43
#define HCI_VENDOR_SUB_CMD_WR_REG_REQ 0x44
#define HCI_EV_VENDOR_SPECIFIC 0xff
//sub event from fw start
#define HCI_VENDOR_PTA_REPORT_EVENT 0x24
#define HCI_VENDOR_PTA_AUTO_REPORT_EVENT 0x25
//vendor cmd to wifi driver
#define HCI_GRP_VENDOR_SPECIFIC (0x3f << 10)
#define HCI_OP_HCI_EXTENSION_VERSION_NOTIFY (0x0100 | HCI_GRP_VENDOR_SPECIFIC)
#define HCI_OP_BT_OPERATION_NOTIFY (0x0102 | HCI_GRP_VENDOR_SPECIFIC)
#define HCI_OP_HCI_BT_INFO_NOTIFY (0x0106 | HCI_GRP_VENDOR_SPECIFIC)
#define HCI_OP_HCI_BT_COEX_NOTIFY (0x0107 | HCI_GRP_VENDOR_SPECIFIC)
#define HCI_OP_HCI_BT_PATCH_VER_NOTIFY (0x0108 | HCI_GRP_VENDOR_SPECIFIC)
#define HCI_OP_HCI_BT_AFH_MAP_NOTIFY (0x0109 | HCI_GRP_VENDOR_SPECIFIC)
#define HCI_OP_HCI_BT_REGISTER_VALUE_NOTIFY (0x010a | HCI_GRP_VENDOR_SPECIFIC)
//bt info reason to wifi
#define HOST_RESPONSE 0 //Host response when receive the BT Info Control Event
#define POLLING_RESPONSE 1 //The BT Info response for polling by BT firmware.
#define AUTO_REPORT 2 //BT auto report by BT firmware.
#define STACK_REPORT_WHILE_DEVICE_D2 3 //Stack report when BT firmware is under power save state(ex:D2)
// vendor event from wifi
#define RTK_HS_EXTENSION_EVENT_WIFI_SCAN 0x01
#define RTK_HS_EXTENSION_EVENT_RADIO_STATUS_NOTIFY 0x02
#define RTK_HS_EXTENSION_EVENT_HCI_BT_INFO_CONTROL 0x03
#define RTK_HS_EXTENSION_EVENT_HCI_BT_COEX_CONTROL 0x04
//op code from wifi
#define BT_PATCH_VERSION_QUERY 0x00
#define IGNORE_WLAN_ACTIVE_CONTROL 0x01
#define LNA_CONSTRAIN_CONTROL 0x02
#define BT_POWER_DECREASE_CONTROL 0x03
#define BT_PSD_MODE_CONTROL 0x04
#define WIFI_BW_CHNL_NOTIFY 0x05
#define QUERY_BT_AFH_MAP 0x06
#define BT_REGISTER_ACCESS 0x07
//bt operation to notify
#define BT_OPCODE_NONE 0
#define BT_OPCODE_INQUIRY_START 1
#define BT_OPCODE_INQUIRY_END 2
#define BT_OPCODE_PAGE_START 3
#define BT_OPCODE_PAGE_SUCCESS_END 4
#define BT_OPCODE_PAGE_UNSUCCESS_END 5
#define BT_OPCODE_PAIR_START 6
#define BT_OPCODE_PAIR_END 7
#define BT_OPCODE_ENABLE_BT 8
#define BT_OPCODE_DISABLE_BT 9
#define HCI_EXTENSION_VERSION 0x0004
#define HCI_CMD_PREAMBLE_SIZE 3
#define PAN_PACKET_COUNT 5
#define STREAM_TO_UINT16(u16, p) {u16 = ((uint16_t)(*(p)) + (((uint16_t)(*((p) + 1))) << 8)); (p) += 2;}
#define UINT16_TO_STREAM(p, u16) {*(p)++ = (uint8_t)(u16); *(p)++ = (uint8_t)((u16) >> 8);}
#define PSM_SDP 0x0001
#define PSM_RFCOMM 0x0003
#define PSM_PAN 0x000F
#define PSM_HID 0x0011
#define PSM_HID_INT 0x0013
#define PSM_AVCTP 0x0017
#define PSM_AVDTP 0x0019
#define PSM_FTP 0x1001
#define PSM_BIP 0x1003
#define PSM_OPP 0x1015
//--add more if needed--//
enum {
profile_sco = 0,
profile_hid = 1,
profile_a2dp = 2,
profile_pan = 3,
profile_hid_interval = 4,
profile_hogp = 5,
profile_voice = 6,
profile_sink = 7,
profile_max = 8
};
#define A2DP_SIGNAL 0x01
#define A2DP_MEDIA 0x02
//profile info data
typedef struct {
struct list_head list;
uint16_t handle;
uint16_t psm;
uint16_t dcid;
uint16_t scid;
uint8_t profile_index;
uint8_t flags;
} rtk_prof_info, *prtk_prof_info;
//profile info for each connection
typedef struct rtl_hci_conn {
struct list_head list;
uint16_t handle;
uint8_t type; // 0:l2cap, 1:sco/esco, 2:le
uint8_t profile_bitmap;
int8_t profile_refcount[8];
} rtk_conn_prof, *prtk_conn_prof;
#ifdef RTB_SOFTWARE_MAILBOX
struct rtl_btinfo {
u8 cmd;
u8 len;
u8 data[6];
};
#define RTL_BTINFO_LEN (sizeof(struct rtl_btinfo))
/* typedef struct {
* uint8_t cmd_index;
* uint8_t cmd_length;
* uint8_t link_status;
* uint8_t retry_cnt;
* uint8_t rssi;
* uint8_t mailbox_info;
* uint16_t acl_throughput;
* } hci_linkstatus_report; */
typedef struct {
uint8_t type;
uint32_t offset;
uint32_t value;
} hci_mailbox_register;
struct rtl_btinfo_ctl {
uint8_t polling_enable;
uint8_t polling_time;
uint8_t autoreport_enable;
};
#endif /* RTB_SOFTWARE_MAILBOX */
#define MAX_LEN_OF_HCI_EV 32
#define NUM_RTL_HCI_EV 32
struct rtl_hci_ev {
__u8 data[MAX_LEN_OF_HCI_EV];
__u16 len;
struct list_head list;
};
#define L2_MAX_SUBSEC_LEN 128
#define L2_MAX_PKTS 16
struct rtl_l2_buff {
__u8 data[L2_MAX_SUBSEC_LEN];
__u16 len;
__u16 out;
struct list_head list;
};
struct rtl_coex_struct {
struct list_head conn_hash; //hash for connections
struct list_head profile_list; //hash for profile info
struct hci_dev *hdev;
#ifdef RTB_SOFTWARE_MAILBOX
struct socket *udpsock;
struct sockaddr_in addr;
struct sockaddr_in wifi_addr;
struct timer_list polling_timer;
#endif
struct timer_list a2dp_count_timer;
struct timer_list pan_count_timer;
struct timer_list hogp_count_timer;
#ifdef RTB_SOFTWARE_MAILBOX
struct workqueue_struct *sock_wq;
struct delayed_work sock_work;
#endif
struct workqueue_struct *fw_wq;
struct delayed_work fw_work;
struct delayed_work l2_work;
#ifdef RTB_SOFTWARE_MAILBOX
struct sock *sk;
#endif
struct urb *urb;
spinlock_t spin_lock_sock;
spinlock_t spin_lock_profile;
uint32_t a2dp_packet_count;
uint32_t pan_packet_count;
uint32_t hogp_packet_count;
uint32_t voice_packet_count;
uint8_t profile_bitmap;
uint8_t profile_status;
int8_t profile_refcount[8];
uint8_t ispairing;
uint8_t isinquirying;
uint8_t ispaging;
#ifdef RTB_SOFTWARE_MAILBOX
uint8_t wifi_state;
uint8_t autoreport;
uint8_t polling_enable;
uint8_t polling_interval;
uint8_t piconet_id;
uint8_t mode;
uint8_t afh_map[10];
#endif
uint16_t hci_reversion;
uint16_t lmp_subversion;
#ifdef RTB_SOFTWARE_MAILBOX
uint8_t wifi_on;
uint8_t sock_open;
#endif
unsigned long cmd_last_tx;
/* hci ev buff */
struct list_head ev_used_list;
struct list_head ev_free_list;
spinlock_t rxlock;
__u8 pkt_type;
__u16 expect;
__u8 *tbuff;
__u16 elen;
__u8 back_buff[HCI_MAX_EVENT_SIZE];
/* l2cap rx buff */
struct list_head l2_used_list;
struct list_head l2_free_list;
/* buff addr and size */
spinlock_t buff_lock;
unsigned long pages_addr;
unsigned long buff_size;
#define RTL_COEX_RUNNING (1 << 0)
unsigned long flags;
};
#ifdef __LITTLE_ENDIAN
struct sbc_frame_hdr {
uint8_t syncword:8; /* Sync word */
uint8_t subbands:1; /* Subbands */
uint8_t allocation_method:1; /* Allocation method */
uint8_t channel_mode:2; /* Channel mode */
uint8_t blocks:2; /* Blocks */
uint8_t sampling_frequency:2; /* Sampling frequency */
uint8_t bitpool:8; /* Bitpool */
uint8_t crc_check:8; /* CRC check */
} __attribute__ ((packed));
/* NOTE: The code is copied from pa.
* only the bit field in 8-bit is affected by endian, not the 16-bit or 32-bit.
* why?
*/
struct rtp_header {
unsigned cc:4;
unsigned x:1;
unsigned p:1;
unsigned v:2;
unsigned pt:7;
unsigned m:1;
uint16_t sequence_number;
uint32_t timestamp;
uint32_t ssrc;
uint32_t csrc[0];
} __attribute__ ((packed));
#else
/* big endian */
struct sbc_frame_hdr {
uint8_t syncword:8; /* Sync word */
uint8_t sampling_frequency:2; /* Sampling frequency */
uint8_t blocks:2; /* Blocks */
uint8_t channel_mode:2; /* Channel mode */
uint8_t allocation_method:1; /* Allocation method */
uint8_t subbands:1; /* Subbands */
uint8_t bitpool:8; /* Bitpool */
uint8_t crc_check:8; /* CRC check */
} __attribute__ ((packed));
struct rtp_header {
unsigned v:2;
unsigned p:1;
unsigned x:1;
unsigned cc:4;
unsigned m:1;
unsigned pt:7;
uint16_t sequence_number;
uint32_t timestamp;
uint32_t ssrc;
uint32_t csrc[0];
} __attribute__ ((packed));
#endif /* __LITTLE_ENDIAN */
void rtk_btcoex_parse_event(uint8_t *buffer, int count);
void rtk_btcoex_parse_cmd(uint8_t *buffer, int count);
void rtk_btcoex_parse_l2cap_data_tx(uint8_t *buffer, int count);
void rtk_btcoex_parse_l2cap_data_rx(uint8_t *buffer, int count);
void rtk_btcoex_open(struct hci_dev *hdev);
void rtk_btcoex_close(void);
void rtk_btcoex_probe(struct hci_dev *hdev);
void rtk_btcoex_init(void);
void rtk_btcoex_exit(void);
