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SmartAudio/lichee/linux-4.9/drivers/bluetooth/rtk_btusb.h

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2018-07-13 01:31:50 +00:00
/*
*
* 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.
*
*/
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/skbuff.h>
#include <linux/errno.h>
#include <linux/usb.h>
#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/poll.h>
#include <linux/version.h>
#include <linux/pm_runtime.h>
#include <linux/firmware.h>
#include <linux/suspend.h>
#define CONFIG_BLUEDROID 1 /* bleuz 0, bluedroid 1 */
/* Some Android system may use standard Linux kernel, while
* standard Linux may also implement early suspend feature.
* So exclude earysuspend.h from CONFIG_BLUEDROID.
*/
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif
#if CONFIG_BLUEDROID
#else
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/hci.h>
#endif
/***********************************
** Realtek - For rtk_btusb driver **
***********************************/
#define URB_CANCELING_DELAY_MS 10
/* when OS suspended, module is still powered,usb is not powered,
* this may set to 1, and must comply with special patch code.
*/
#define CONFIG_RESET_RESUME 1
#define PRINT_CMD_EVENT 0
#define PRINT_ACL_DATA 0
#define PRINT_SCO_DATA 0
#define RTKBT_DBG_FLAG 0
#if RTKBT_DBG_FLAG
#define RTKBT_DBG(fmt, arg...) printk(KERN_INFO "rtk_btusb: " fmt "\n", ## arg)
#else
#define RTKBT_DBG(fmt, arg...)
#endif
#define RTKBT_INFO(fmt, arg...) printk(KERN_INFO "rtk_btusb: " fmt "\n", ## arg)
#define RTKBT_WARN(fmt, arg...) printk(KERN_WARNING "rtk_btusb: " fmt "\n", ## arg)
#define RTKBT_ERR(fmt, arg...) printk(KERN_ERR "rtk_btusb: " fmt "\n", ## arg)
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 33)
#define HDEV_BUS (hdev->bus)
#define USB_RPM 1
#else
#define HDEV_BUS (hdev->type)
#define USB_RPM 0
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 38)
#define NUM_REASSEMBLY 3
#endif
#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)
#define GET_DRV_DATA(x) hci_get_drvdata(x)
#else
#define GET_DRV_DATA(x) (x->driver_data)
#endif
#define SCO_NUM (hdev->conn_hash.sco_num)
#define BTUSB_RPM (0 * USB_RPM) /* 1 SS enable; 0 SS disable */
#define BTUSB_WAKEUP_HOST 0 /* 1 enable; 0 disable */
#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 HCI_CMD_READ_BD_ADDR 0x1009
#define HCI_VENDOR_CHANGE_BDRATE 0xfc17
#define HCI_VENDOR_READ_RTK_ROM_VERISION 0xfc6d
#define HCI_VENDOR_READ_LMP_VERISION 0x1001
#define HCI_VENDOR_FORCE_RESET_AND_PATCHABLE 0xfc66
#define HCI_VENDOR_RESET 0x0C03
#define HCI_VENDOR_ADD_WAKE_UP_DEVICE 0xfc7b
#define HCI_VENDOR_REMOVE_WAKE_UP_DEVICE 0xfc7c
#define HCI_VENDOR_CLEAR_POWERON_LIST 0xfc7d
#define HCI_VENDOR_USB_DISC_HARDWARE_ERROR 0xFF
#define SET_WAKEUP_DEVICE_CONF "/data/misc/bluedroid/rtkbt_wakeup_ble.conf"
#define DRV_NORMAL_MODE 0
#define DRV_MP_MODE 1
int mp_drv_mode; /* 1 Mptool Fw; 0 Normal Fw */
#define ROM_LMP_NONE 0x0000
#define ROM_LMP_8723a 0x1200
#define ROM_LMP_8723b 0x8723
#define ROM_LMP_8821a 0X8821
#define ROM_LMP_8761a 0X8761
#define ROM_LMP_8703a 0x8723
#define ROM_LMP_8763a 0x8763
#define ROM_LMP_8703b 0x8703
#define ROM_LMP_8723c 0x8703
#define ROM_LMP_8822b 0x8822
#define ROM_LMP_8723d 0x8723
#define ROM_LMP_8821c 0x8821
/* signature: Realtek */
const uint8_t RTK_EPATCH_SIGNATURE[8] = {0x52, 0x65, 0x61, 0x6C, 0x74, 0x65, 0x63, 0x68};
/* Extension Section IGNATURE:0x77FD0451 */
const uint8_t EXTENSION_SECTION_SIGNATURE[4] = {0x51, 0x04, 0xFD, 0x77};
uint16_t project_id[] = {
ROM_LMP_8723a,
ROM_LMP_8723b,
ROM_LMP_8821a,
ROM_LMP_8761a,
ROM_LMP_8703a,
ROM_LMP_8763a,
ROM_LMP_8703b,
ROM_LMP_8723c,
ROM_LMP_8822b,
ROM_LMP_8723d,
ROM_LMP_8821c,
ROM_LMP_NONE
};
struct rtk_eversion_evt {
uint8_t status;
uint8_t version;
} __attribute__ ((packed));
/*modified by lamparten 1020*/
struct rtk_reset_evt {
uint8_t status;
} __attribute__ ((packed));
/*modified by lamparten 1020*/
struct rtk_localversion_evt {
uint8_t status;
uint8_t hci_version;
uint16_t hci_revision;
uint8_t lmp_version;
uint16_t lmp_manufacture;
uint16_t lmp_subversion;
} __attribute__ ((packed));
struct rtk_epatch_entry {
uint16_t chip_id;
uint16_t patch_length;
uint32_t start_offset;
uint32_t coex_version;
uint32_t svn_version;
uint32_t fw_version;
} __attribute__ ((packed));
struct rtk_epatch {
uint8_t signature[8];
uint32_t fw_version;
uint16_t number_of_total_patch;
struct rtk_epatch_entry entry[0];
} __attribute__ ((packed));
struct rtk_extension_entry {
uint8_t opcode;
uint8_t length;
uint8_t *data;
} __attribute__ ((packed));
struct rtk_bt_vendor_config_entry{
uint16_t offset;
uint8_t entry_len;
uint8_t entry_data[0];
} __attribute__ ((packed));
struct rtk_bt_vendor_config{
uint32_t signature;
uint16_t data_len;
struct rtk_bt_vendor_config_entry entry[0];
} __attribute__ ((packed));
/* Realtek - For rtk_btusb driver end */
#if CONFIG_BLUEDROID
#define QUEUE_SIZE 500
/***************************************
** Realtek - Integrate from bluetooth.h **
*****************************************/
/* Reserv for core and drivers use */
#define BT_SKB_RESERVE 8
/* BD Address */
typedef struct {
__u8 b[6];
} __packed bdaddr_t;
/* Skb helpers */
struct bt_skb_cb {
__u8 pkt_type;
__u8 incoming;
__u16 expect;
__u16 tx_seq;
__u8 retries;
__u8 sar;
__u8 force_active;
};
#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
{
struct sk_buff *skb;
skb = alloc_skb(len + BT_SKB_RESERVE, how);
if (skb) {
skb_reserve(skb, BT_SKB_RESERVE);
bt_cb(skb)->incoming = 0;
}
return skb;
}
/* Realtek - Integrate from bluetooth.h end */
/***********************************
** Realtek - Integrate from hci.h **
***********************************/
#define HCI_MAX_ACL_SIZE 1024
#define HCI_MAX_SCO_SIZE 255
#define HCI_MAX_EVENT_SIZE 260
#define HCI_MAX_FRAME_SIZE (HCI_MAX_ACL_SIZE + 4)
/* HCI bus types */
#define HCI_VIRTUAL 0
#define HCI_USB 1
#define HCI_PCCARD 2
#define HCI_UART 3
#define HCI_RS232 4
#define HCI_PCI 5
#define HCI_SDIO 6
/* HCI controller types */
#define HCI_BREDR 0x00
#define HCI_AMP 0x01
/* HCI device flags */
enum {
HCI_UP,
HCI_INIT,
HCI_RUNNING,
HCI_PSCAN,
HCI_ISCAN,
HCI_AUTH,
HCI_ENCRYPT,
HCI_INQUIRY,
HCI_RAW,
HCI_RESET,
};
/*
* BR/EDR and/or LE controller flags: the flags defined here should represent
* states from the controller.
*/
enum {
HCI_SETUP,
HCI_AUTO_OFF,
HCI_MGMT,
HCI_PAIRABLE,
HCI_SERVICE_CACHE,
HCI_LINK_KEYS,
HCI_DEBUG_KEYS,
HCI_UNREGISTER,
HCI_LE_SCAN,
HCI_SSP_ENABLED,
HCI_HS_ENABLED,
HCI_LE_ENABLED,
HCI_CONNECTABLE,
HCI_DISCOVERABLE,
HCI_LINK_SECURITY,
HCI_PENDING_CLASS,
};
/* HCI data types */
#define HCI_COMMAND_PKT 0x01
#define HCI_ACLDATA_PKT 0x02
#define HCI_SCODATA_PKT 0x03
#define HCI_EVENT_PKT 0x04
#define HCI_VENDOR_PKT 0xff
#define HCI_MAX_NAME_LENGTH 248
#define HCI_MAX_EIR_LENGTH 240
#define HCI_OP_READ_LOCAL_VERSION 0x1001
struct hci_rp_read_local_version {
__u8 status;
__u8 hci_ver;
__le16 hci_rev;
__u8 lmp_ver;
__le16 manufacturer;
__le16 lmp_subver;
} __packed;
#define HCI_EV_CMD_COMPLETE 0x0e
struct hci_ev_cmd_complete {
__u8 ncmd;
__le16 opcode;
} __packed;
/* ---- HCI Packet structures ---- */
#define HCI_COMMAND_HDR_SIZE 3
#define HCI_EVENT_HDR_SIZE 2
#define HCI_ACL_HDR_SIZE 4
#define HCI_SCO_HDR_SIZE 3
struct hci_command_hdr {
__le16 opcode; /* OCF & OGF */
__u8 plen;
} __packed;
struct hci_event_hdr {
__u8 evt;
__u8 plen;
} __packed;
struct hci_acl_hdr {
__le16 handle; /* Handle & Flags(PB, BC) */
__le16 dlen;
} __packed;
struct hci_sco_hdr {
__le16 handle;
__u8 dlen;
} __packed;
static inline struct hci_event_hdr *hci_event_hdr(const struct sk_buff *skb)
{
return (struct hci_event_hdr *) skb->data;
}
static inline struct hci_acl_hdr *hci_acl_hdr(const struct sk_buff *skb)
{
return (struct hci_acl_hdr *) skb->data;
}
static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)
{
return (struct hci_sco_hdr *) skb->data;
}
/* ---- HCI Ioctl requests structures ---- */
struct hci_dev_stats {
__u32 err_rx;
__u32 err_tx;
__u32 cmd_tx;
__u32 evt_rx;
__u32 acl_tx;
__u32 acl_rx;
__u32 sco_tx;
__u32 sco_rx;
__u32 byte_rx;
__u32 byte_tx;
};
/* Realtek - Integrate from hci.h end */
/*****************************************
** Realtek - Integrate from hci_core.h **
*****************************************/
struct hci_conn_hash {
struct list_head list;
unsigned int acl_num;
unsigned int sco_num;
unsigned int le_num;
};
#define HCI_MAX_SHORT_NAME_LENGTH 10
#define NUM_REASSEMBLY 4
struct hci_dev {
struct mutex lock;
char name[8];
unsigned long flags;
__u16 id;
__u8 bus;
__u8 dev_type;
struct sk_buff *reassembly[NUM_REASSEMBLY];
struct hci_conn_hash conn_hash;
struct hci_dev_stats stat;
#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0)
atomic_t refcnt;
struct module *owner;
void *driver_data;
#endif
atomic_t promisc;
struct device *parent;
struct device dev;
unsigned long dev_flags;
int (*open)(struct hci_dev *hdev);
int (*close)(struct hci_dev *hdev);
int (*flush)(struct hci_dev *hdev);
int (*send)(struct sk_buff *skb);
#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0)
void (*destruct)(struct hci_dev *hdev);
#endif
#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 7, 1)
__u16 voice_setting;
#endif
void (*notify)(struct hci_dev *hdev, unsigned int evt);
int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
};
#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0)
static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
{
atomic_inc(&d->refcnt);
return d;
}
static inline void __hci_dev_put(struct hci_dev *d)
{
if (atomic_dec_and_test(&d->refcnt))
d->destruct(d);
}
#endif
static inline void *hci_get_drvdata(struct hci_dev *hdev)
{
return dev_get_drvdata(&hdev->dev);
}
static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
{
dev_set_drvdata(&hdev->dev, data);
}
#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
/* Realtek - Integrate from hci_core.h end */
/* ----- HCI Commands ---- */
#define HCI_OP_INQUIRY 0x0401
#define HCI_OP_INQUIRY_CANCEL 0x0402
#define HCI_OP_EXIT_PERIODIC_INQ 0x0404
#define HCI_OP_CREATE_CONN 0x0405
#define HCI_OP_DISCONNECT 0x0406
#define HCI_OP_ADD_SCO 0x0407
#define HCI_OP_CREATE_CONN_CANCEL 0x0408
#define HCI_OP_ACCEPT_CONN_REQ 0x0409
#define HCI_OP_REJECT_CONN_REQ 0x040a
#define HCI_OP_LINK_KEY_REPLY 0x040b
#define HCI_OP_LINK_KEY_NEG_REPLY 0x040c
#define HCI_OP_PIN_CODE_REPLY 0x040d
#define HCI_OP_PIN_CODE_NEG_REPLY 0x040e
#define HCI_OP_CHANGE_CONN_PTYPE 0x040f
#define HCI_OP_AUTH_REQUESTED 0x0411
#define HCI_OP_SET_CONN_ENCRYPT 0x0413
#define HCI_OP_CHANGE_CONN_LINK_KEY 0x0415
#define HCI_OP_REMOTE_NAME_REQ 0x0419
#define HCI_OP_REMOTE_NAME_REQ_CANCEL 0x041a
#define HCI_OP_READ_REMOTE_FEATURES 0x041b
#define HCI_OP_READ_REMOTE_EXT_FEATURES 0x041c
#define HCI_OP_READ_REMOTE_VERSION 0x041d
#define HCI_OP_SETUP_SYNC_CONN 0x0428
#define HCI_OP_ACCEPT_SYNC_CONN_REQ 0x0429
#define HCI_OP_REJECT_SYNC_CONN_REQ 0x042a
#define HCI_OP_SNIFF_MODE 0x0803
#define HCI_OP_EXIT_SNIFF_MODE 0x0804
#define HCI_OP_ROLE_DISCOVERY 0x0809
#define HCI_OP_SWITCH_ROLE 0x080b
#define HCI_OP_READ_LINK_POLICY 0x080c
#define HCI_OP_WRITE_LINK_POLICY 0x080d
#define HCI_OP_READ_DEF_LINK_POLICY 0x080e
#define HCI_OP_WRITE_DEF_LINK_POLICY 0x080f
#define HCI_OP_SNIFF_SUBRATE 0x0811
#define HCI_OP_SET_EVENT_MASK 0x0c01
#define HCI_OP_RESET 0x0c03
#define HCI_OP_SET_EVENT_FLT 0x0c05
#define HCI_OP_Write_Extended_Inquiry_Response 0x0c52
/* ----- HCI events---- */
#define HCI_OP_DISCONNECT 0x0406
#define HCI_EV_INQUIRY_COMPLETE 0x01
#define HCI_EV_INQUIRY_RESULT 0x02
#define HCI_EV_CONN_COMPLETE 0x03
#define HCI_EV_CONN_REQUEST 0x04
#define HCI_EV_DISCONN_COMPLETE 0x05
#define HCI_EV_AUTH_COMPLETE 0x06
#define HCI_EV_REMOTE_NAME 0x07
#define HCI_EV_ENCRYPT_CHANGE 0x08
#define HCI_EV_CHANGE_LINK_KEY_COMPLETE 0x09
#define HCI_EV_REMOTE_FEATURES 0x0b
#define HCI_EV_REMOTE_VERSION 0x0c
#define HCI_EV_QOS_SETUP_COMPLETE 0x0d
#define HCI_EV_CMD_COMPLETE 0x0e
#define HCI_EV_CMD_STATUS 0x0f
#define HCI_EV_ROLE_CHANGE 0x12
#define HCI_EV_NUM_COMP_PKTS 0x13
#define HCI_EV_MODE_CHANGE 0x14
#define HCI_EV_PIN_CODE_REQ 0x16
#define HCI_EV_LINK_KEY_REQ 0x17
#define HCI_EV_LINK_KEY_NOTIFY 0x18
#define HCI_EV_CLOCK_OFFSET 0x1c
#define HCI_EV_PKT_TYPE_CHANGE 0x1d
#define HCI_EV_PSCAN_REP_MODE 0x20
#define HCI_EV_INQUIRY_RESULT_WITH_RSSI 0x22
#define HCI_EV_REMOTE_EXT_FEATURES 0x23
#define HCI_EV_SYNC_CONN_COMPLETE 0x2c
#define HCI_EV_SYNC_CONN_CHANGED 0x2d
#define HCI_EV_SNIFF_SUBRATE 0x2e
#define HCI_EV_EXTENDED_INQUIRY_RESULT 0x2f
#define HCI_EV_IO_CAPA_REQUEST 0x31
#define HCI_EV_SIMPLE_PAIR_COMPLETE 0x36
#define HCI_EV_REMOTE_HOST_FEATURES 0x3d
#define CONFIG_MAC_OFFSET_GEN_1_2 (0x3C) /* MAC's OFFSET in config/efuse for realtek generation 1~2 bluetooth chip */
#define CONFIG_MAC_OFFSET_GEN_3PLUS (0x44) /* MAC's OFFSET in config/efuse for rtk generation 3+ bluetooth chip */
/*******************************
** Reasil patch code
********************************/
#define CMD_CMP_EVT 0x0e
#define PKT_LEN 300
#define MSG_TO 1000
#define PATCH_SEG_MAX 252
#define DATA_END 0x80
#define DOWNLOAD_OPCODE 0xfc20
#define BTOFF_OPCODE 0xfc28
#define TRUE 1
#define FALSE 0
#define CMD_HDR_LEN sizeof(struct hci_command_hdr)
#define EVT_HDR_LEN sizeof(struct hci_event_hdr)
#define CMD_CMP_LEN sizeof(struct hci_ev_cmd_complete)
#define MAX_PATCH_SIZE_24K (1024*24)
#define MAX_PATCH_SIZE_40K (1024*40)
enum rtk_endpoit {
CTRL_EP = 0,
INTR_EP = 1,
BULK_EP = 2,
ISOC_EP = 3
};
typedef struct {
uint16_t vid;
uint16_t pid;
uint16_t lmp_sub_default;
uint16_t lmp_sub;
uint16_t eversion;
char *mp_patch_name;
char *patch_name;
char *config_name;
uint8_t *fw_cache;
int fw_len;
uint16_t mac_offset;
uint32_t max_patch_size;
} patch_info;
typedef struct {
struct usb_interface *intf;
struct usb_device *udev;
patch_info *patch_entry;
int pipe_in, pipe_out;
uint8_t *send_pkt;
uint8_t *rcv_pkt;
struct hci_command_hdr *cmd_hdr;
struct hci_event_hdr *evt_hdr;
struct hci_ev_cmd_complete *cmd_cmp;
uint8_t *req_para, *rsp_para;
uint8_t *fw_data;
int pkt_len;
int fw_len;
} firmware_info;
typedef struct {
uint8_t index;
uint8_t data[PATCH_SEG_MAX];
} __attribute__((packed)) download_cp;
typedef struct {
uint8_t status;
uint8_t index;
} __attribute__((packed)) download_rp;
/* Define ioctl cmd the same as HCIDEVUP in the kernel */
#define DOWN_FW_CFG _IOW('H', 201, int)
/* for altsettings*/
#include <linux/fs.h>
#define BDADDR_FILE "/data/misc/bluetooth/bdaddr"
#define FACTORY_BT_BDADDR_STORAGE_LEN 17
static inline int getmacaddr(uint8_t *vnd_local_bd_addr)
{
struct file *bdaddr_file;
mm_segment_t oldfs;
char buf[FACTORY_BT_BDADDR_STORAGE_LEN];
int32_t i = 0;
memset(buf, 0, FACTORY_BT_BDADDR_STORAGE_LEN);
bdaddr_file = filp_open(BDADDR_FILE, O_RDONLY, 0);
if (IS_ERR(bdaddr_file)) {
RTKBT_INFO("No Mac Config for BT\n");
return -1;
}
oldfs = get_fs(); set_fs(KERNEL_DS);
bdaddr_file->f_op->llseek(bdaddr_file, 0, 0);
bdaddr_file->f_op->read(bdaddr_file, buf, FACTORY_BT_BDADDR_STORAGE_LEN, &bdaddr_file->f_pos);
for (i = 0; i < 6; i++) {
if (buf[3*i] > '9') {
if (buf[3*i] > 'Z')
buf[3*i] -= ('a'-'A'); /* change a to A */
buf[3*i] -= ('A' - '9' - 1);
}
if (buf[3*i+1] > '9') {
if (buf[3*i+1] > 'Z')
buf[3*i+1] -= ('a'-'A'); /* change a to A */
buf[3*i+1] -= ('A' - '9' - 1);
}
vnd_local_bd_addr[5-i] = ((uint8_t)buf[3*i] - '0') * 16 + ((uint8_t)buf[3*i+1] - '0');
}
set_fs(oldfs);
filp_close(bdaddr_file, NULL);
return 0;
}
static inline int getAltSettings(patch_info *patch_entry, unsigned short *offset, int max_group_cnt)
{
int n = 0;
if (patch_entry)
offset[n++] = patch_entry->mac_offset;
/*
//sample code, add special settings
offset[n++] = 0x15B;
*/
return n;
}
static inline int getAltSettingVal(patch_info *patch_entry, unsigned short offset, unsigned char *val)
{
int res = 0;
switch (offset) {
/*
//sample code, add special settings
case 0x15B:
val[0] = 0x0B;
val[1] = 0x0B;
val[2] = 0x0B;
val[3] = 0x0B;
res = 4;
break;
*/
default:
res = 0;
break;
}
if ((patch_entry) && (offset == patch_entry->mac_offset) && (res == 0)) {
if (getmacaddr(val) == 0) {
RTKBT_INFO("MAC: %02x:%02x:%02x:%02x:%02x:%02x", val[5], val[4], val[3], val[2], val[1], val[0]);
res = 6;
}
}
return res;
}
#endif /* CONFIG_BLUEDROID */