drivers/char/diag/diagchar.h - kernel/msm - Gitiles

 /* Copyright (c) 2008-2013, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * 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.
  */

 #ifndef DIAGCHAR_H
 #define DIAGCHAR_H

 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mempool.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
 #include <linux/sched.h>
 #include <linux/wakelock.h>
 #include <mach/msm_smd.h>
 #include <asm/atomic.h>
 #include <asm/mach-types.h>

 /* Size of the USB buffers used for read and write*/
 #define USB_MAX_OUT_BUF 4096
 #define APPS_BUF_SIZE	4096
 #define IN_BUF_SIZE		16384
 #define MAX_IN_BUF_SIZE	32768
 #define MAX_SYNC_OBJ_NAME_SIZE	32
 /* Size of the buffer used for deframing a packet
   reveived from the PC tool*/
 #define HDLC_MAX 4096
 #define HDLC_OUT_BUF_SIZE	8192
 #define POOL_TYPE_COPY		1
 #define POOL_TYPE_HDLC		2
 #define POOL_TYPE_USER		3
 #define POOL_TYPE_WRITE_STRUCT	4
 #define POOL_TYPE_HSIC		5
 #define POOL_TYPE_HSIC_2	6
 #define POOL_TYPE_HSIC_WRITE	11
 #define POOL_TYPE_HSIC_2_WRITE	12
 #define POOL_TYPE_ALL		10

 #define POOL_COPY_IDX		0
 #define POOL_HDLC_IDX		1
 #define POOL_USER_IDX		2
 #define POOL_WRITE_STRUCT_IDX	3
 #define POOL_HSIC_IDX		4
 #define POOL_HSIC_2_IDX		5
 #define POOL_HSIC_3_IDX		6
 #define POOL_HSIC_4_IDX		7
 #define POOL_HSIC_WRITE_IDX	8
 #define POOL_HSIC_2_WRITE_IDX	9
 #define POOL_HSIC_3_WRITE_IDX	10
 #define POOL_HSIC_4_WRITE_IDX	11

 #ifdef CONFIG_DIAGFWD_BRIDGE_CODE
 #define NUM_MEMORY_POOLS	12
 #else
 #define NUM_MEMORY_POOLS	4
 #endif

 #define MODEM_DATA		0
 #define LPASS_DATA		1
 #define WCNSS_DATA		2
 #define APPS_DATA		3
 #define SDIO_DATA		4
 #define HSIC_DATA		5
 #define HSIC_2_DATA		6
 #define SMUX_DATA		10
 #define APPS_PROC		1
 #define MSG_MASK_SIZE 10000
 #define LOG_MASK_SIZE 8000
 #define EVENT_MASK_SIZE 1000
 #define USER_SPACE_DATA 8192
 #define PKT_SIZE 4096
 #define MAX_EQUIP_ID 15
 #define DIAG_CTRL_MSG_LOG_MASK	9
 #define DIAG_CTRL_MSG_EVENT_MASK	10
 #define DIAG_CTRL_MSG_F3_MASK	11
 #define CONTROL_CHAR	0x7E

 #define DIAG_CON_APSS (0x0001)	/* Bit mask for APSS */
 #define DIAG_CON_MPSS (0x0002)	/* Bit mask for MPSS */
 #define DIAG_CON_LPASS (0x0004)	/* Bit mask for LPASS */
 #define DIAG_CON_WCNSS (0x0008)	/* Bit mask for WCNSS */

 #define NUM_STM_PROCESSORS	4

 #define DIAG_STM_MODEM	0x01
 #define DIAG_STM_LPASS	0x02
 #define DIAG_STM_WCNSS	0x04
 #define DIAG_STM_APPS	0x08

 /*
  * The status bit masks when received in a signal handler are to be
  * used in conjunction with the peripheral list bit mask to determine the
  * status for a peripheral. For instance, 0x00010002 would denote an open
  * status on the MPSS
  */
 #define DIAG_STATUS_OPEN (0x00010000)	/* DCI channel open status mask   */
 #define DIAG_STATUS_CLOSED (0x00020000)	/* DCI channel closed status mask */

 #define MODE_REALTIME 1
 #define MODE_NONREALTIME 0

 #define NUM_SMD_DATA_CHANNELS 3
 #define NUM_SMD_CONTROL_CHANNELS NUM_SMD_DATA_CHANNELS
 #define NUM_SMD_DCI_CHANNELS 1
 #define NUM_SMD_CMD_CHANNELS 1
 #define NUM_SMD_DCI_CMD_CHANNELS 1

 #define SMD_DATA_TYPE 0
 #define SMD_CNTL_TYPE 1
 #define SMD_DCI_TYPE 2
 #define SMD_CMD_TYPE 3
 #define SMD_DCI_CMD_TYPE 4

 #define DIAG_PROC_DCI			1
 #define DIAG_PROC_MEMORY_DEVICE		2

 /* Flags to vote the DCI or Memory device process up or down
    when it becomes active or inactive */
 #define VOTE_DOWN			0
 #define VOTE_UP				1

 #define DIAG_TS_SIZE	50

 /* Maximum number of pkt reg supported at initialization*/
 extern int diag_max_reg;
 extern int diag_threshold_reg;

 #define APPEND_DEBUG(ch) \
 do {							\
 	diag_debug_buf[diag_debug_buf_idx] = ch; \
 	(diag_debug_buf_idx < 1023) ? \
 	(diag_debug_buf_idx++) : (diag_debug_buf_idx = 0); \
 } while (0)

 /* List of remote processor supported */
 enum remote_procs {
 	MDM = 1,
 	MDM2 = 2,
 	MDM3 = 3,
 	MDM4 = 4,
 	QSC = 5,
 };

 struct diag_master_table {
 	uint16_t cmd_code;
 	uint16_t subsys_id;
 	uint32_t client_id;
 	uint16_t cmd_code_lo;
 	uint16_t cmd_code_hi;
 	int process_id;
 };

 struct bindpkt_params_per_process {
 	/* Name of the synchronization object associated with this proc */
 	char sync_obj_name[MAX_SYNC_OBJ_NAME_SIZE];
 	uint32_t count;	/* Number of entries in this bind */
 	struct bindpkt_params *params; /* first bind params */
 };

 struct bindpkt_params {
 	uint16_t cmd_code;
 	uint16_t subsys_id;
 	uint16_t cmd_code_lo;
 	uint16_t cmd_code_hi;
 	/* For Central Routing, used to store Processor number */
 	uint16_t proc_id;
 	uint32_t event_id;
 	uint32_t log_code;
 	/* For Central Routing, used to store SMD channel pointer */
 	uint32_t client_id;
 };

 struct diag_write_device {
 	void *buf;
 	int length;
 };

 struct diag_client_map {
 	char name[20];
 	int pid;
 };

 struct diag_nrt_wake_lock {
 	int enabled;
 	int ref_count;
 	int copy_count;
 	struct wake_lock read_lock;
 	spinlock_t read_spinlock;
 };

 struct real_time_vote_t {
 	uint16_t proc;
 	uint8_t real_time_vote;
 };

 /* This structure is defined in USB header file */
 #ifndef CONFIG_DIAG_OVER_USB
 struct diag_request {
 	char *buf;
 	int length;
 	int actual;
 	int status;
 	void *context;
 };
 #endif

 struct diag_smd_info {
 	int peripheral;	/* The peripheral this smd channel communicates with */
 	int type;	/* The type of smd channel (data, control, dci) */
 	uint16_t peripheral_mask;

 	smd_channel_t *ch;
 	smd_channel_t *ch_save;

 	struct mutex smd_ch_mutex;

 	int in_busy_1;
 	int in_busy_2;

 	unsigned char *buf_in_1;
 	unsigned char *buf_in_2;

 	struct diag_request *write_ptr_1;
 	struct diag_request *write_ptr_2;

 	struct diag_nrt_wake_lock nrt_lock;

 	struct work_struct diag_read_smd_work;
 	struct work_struct diag_notify_update_smd_work;
 	int notify_context;
 	struct work_struct diag_general_smd_work;
 	int general_context;

 	/*
 	 * Function ptr for function to call to process the data that
 	 * was just read from the smd channel
 	 */
 	int (*process_smd_read_data)(struct diag_smd_info *smd_info,
 						void *buf, int num_bytes);
 };

 struct diagchar_dev {

 	/* State for the char driver */
 	unsigned int major;
 	unsigned int minor_start;
 	int num;
 	struct cdev *cdev;
 	char *name;
 	int dropped_count;
 	struct class *diagchar_class;
 	int ref_count;
 	struct mutex diagchar_mutex;
 	wait_queue_head_t wait_q;
 	wait_queue_head_t smd_wait_q;
 	struct diag_client_map *client_map;
 	int *data_ready;
 	int num_clients;
 	int polling_reg_flag;
 	struct diag_write_device *buf_tbl;
 	unsigned int buf_tbl_size;
 	int use_device_tree;
 	int supports_separate_cmdrsp;
 	/* The state requested in the STM command */
 	int stm_state_requested[NUM_STM_PROCESSORS];
 	/* The current STM state */
 	int stm_state[NUM_STM_PROCESSORS];
 	/* Whether or not the peripheral supports STM */
 	int peripheral_supports_stm[NUM_SMD_CONTROL_CHANNELS];
 	/* DCI related variables */
 	struct dci_pkt_req_tracking_tbl *req_tracking_tbl;
 	struct diag_dci_client_tbl *dci_client_tbl;
 	int dci_tag;
 	int dci_client_id;
 	struct mutex dci_mutex;
 	int num_dci_client;
 	unsigned char *apps_dci_buf;
 	int dci_state;
 	struct workqueue_struct *diag_dci_wq;
 	/* Memory pool parameters */
 	unsigned int itemsize;
 	unsigned int poolsize;
 	unsigned int itemsize_hdlc;
 	unsigned int poolsize_hdlc;
 	unsigned int itemsize_user;
 	unsigned int poolsize_user;
 	unsigned int itemsize_write_struct;
 	unsigned int poolsize_write_struct;
 	unsigned int debug_flag;
 	/* State for the mempool for the char driver */
 	mempool_t *diagpool;
 	mempool_t *diag_hdlc_pool;
 	mempool_t *diag_user_pool;
 	mempool_t *diag_write_struct_pool;
 	struct mutex diagmem_mutex;
 	int count;
 	int count_hdlc_pool;
 	int count_user_pool;
 	int count_write_struct_pool;
 	int used;
 	/* Buffers for masks */
 	struct mutex diag_cntl_mutex;
 	struct diag_ctrl_event_mask *event_mask;
 	struct diag_ctrl_log_mask *log_mask;
 	struct diag_ctrl_msg_mask *msg_mask;
 	struct diag_ctrl_feature_mask *feature_mask;
 	/* State for diag forwarding */
 	struct diag_smd_info smd_data[NUM_SMD_DATA_CHANNELS];
 	struct diag_smd_info smd_cntl[NUM_SMD_CONTROL_CHANNELS];
 	struct diag_smd_info smd_dci[NUM_SMD_DCI_CHANNELS];
 	struct diag_smd_info smd_cmd[NUM_SMD_CMD_CHANNELS];
 	struct diag_smd_info smd_dci_cmd[NUM_SMD_DCI_CMD_CHANNELS];
 	int separate_cmdrsp[NUM_SMD_CONTROL_CHANNELS];
 	unsigned char *usb_buf_out;
 	unsigned char *apps_rsp_buf;
 	/* buffer for updating mask to peripherals */
 	unsigned char *buf_msg_mask_update;
 	unsigned char *buf_log_mask_update;
 	unsigned char *buf_event_mask_update;
 	unsigned char *buf_feature_mask_update;
 	int read_len_legacy;
 	struct mutex diag_hdlc_mutex;
 	unsigned char *hdlc_buf;
 	unsigned hdlc_count;
 	unsigned hdlc_escape;
 	int in_busy_pktdata;
 	struct device *dci_device;
 	struct device *dci_cmd_device;
 	/* Variables for non real time mode */
 	int real_time_mode;
 	int real_time_update_busy;
 	uint16_t proc_active_mask;
 	uint16_t proc_rt_vote_mask;
 	struct mutex real_time_mutex;
 	struct work_struct diag_real_time_work;
 	struct workqueue_struct *diag_real_time_wq;
 #ifdef CONFIG_DIAG_OVER_USB
 	int usb_connected;
 	struct usb_diag_ch *legacy_ch;
 	struct work_struct diag_proc_hdlc_work;
 	struct work_struct diag_read_work;
 	struct work_struct diag_usb_connect_work;
 	struct work_struct diag_usb_disconnect_work;
 #endif
 	struct workqueue_struct *diag_wq;
 	struct work_struct diag_drain_work;
 	struct workqueue_struct *diag_cntl_wq;
 	uint8_t *msg_masks;
 	uint8_t *log_masks;
 	int log_masks_length;
 	uint8_t *event_masks;
 	uint8_t log_on_demand_support;
 	struct diag_master_table *table;
 	uint8_t *pkt_buf;
 	int pkt_length;
 	struct diag_request *usb_read_ptr;
 	struct diag_request *write_ptr_svc;
 	int logging_mode;
 	int mask_check;
 	int logging_process_id;
 	struct task_struct *socket_process;
 	struct task_struct *callback_process;
 #ifdef CONFIG_DIAG_SDIO_PIPE
 	unsigned char *buf_in_sdio;
 	unsigned char *usb_buf_mdm_out;
 	struct sdio_channel *sdio_ch;
 	int read_len_mdm;
 	int in_busy_sdio;
 	struct usb_diag_ch *mdm_ch;
 	struct work_struct diag_read_mdm_work;
 	struct workqueue_struct *diag_sdio_wq;
 	struct work_struct diag_read_sdio_work;
 	struct work_struct diag_close_sdio_work;
 	struct diag_request *usb_read_mdm_ptr;
 	struct diag_request *write_ptr_mdm;
 #endif
 #ifdef CONFIG_DIAGFWD_BRIDGE_CODE
 	spinlock_t hsic_ready_spinlock;
 	/* common for all bridges */
 	struct work_struct diag_connect_work;
 	struct work_struct diag_disconnect_work;
 	/* SGLTE variables */
 	int lcid;
 	unsigned char *buf_in_smux;
 	int in_busy_smux;
 	int diag_smux_enabled;
 	int smux_connected;
 	struct diag_request *write_ptr_mdm;
 #endif
 };

 extern struct diag_bridge_dev *diag_bridge;
 extern struct diag_hsic_dev *diag_hsic;
 extern struct diagchar_dev *driver;

 extern int wrap_enabled;
 extern uint16_t wrap_count;

 void diag_get_timestamp(char *time_str);

 #endif
	/* Copyright (c) 2008-2013, The Linux Foundation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* 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.
	*/

	#ifndef DIAGCHAR_H
	#define DIAGCHAR_H

	#include <linux/init.h>
	#include <linux/module.h>
	#include <linux/mempool.h>
	#include <linux/mutex.h>
	#include <linux/spinlock.h>
	#include <linux/workqueue.h>
	#include <linux/sched.h>
	#include <linux/wakelock.h>
	#include <mach/msm_smd.h>
	#include <asm/atomic.h>
	#include <asm/mach-types.h>

	/* Size of the USB buffers used for read and write*/
	#define USB_MAX_OUT_BUF 4096
	#define APPS_BUF_SIZE 4096
	#define IN_BUF_SIZE 16384
	#define MAX_IN_BUF_SIZE 32768
	#define MAX_SYNC_OBJ_NAME_SIZE 32
	/* Size of the buffer used for deframing a packet
	reveived from the PC tool*/
	#define HDLC_MAX 4096
	#define HDLC_OUT_BUF_SIZE 8192
	#define POOL_TYPE_COPY 1
	#define POOL_TYPE_HDLC 2
	#define POOL_TYPE_USER 3
	#define POOL_TYPE_WRITE_STRUCT 4
	#define POOL_TYPE_HSIC 5
	#define POOL_TYPE_HSIC_2 6
	#define POOL_TYPE_HSIC_WRITE 11
	#define POOL_TYPE_HSIC_2_WRITE 12
	#define POOL_TYPE_ALL 10

	#define POOL_COPY_IDX 0
	#define POOL_HDLC_IDX 1
	#define POOL_USER_IDX 2
	#define POOL_WRITE_STRUCT_IDX 3
	#define POOL_HSIC_IDX 4
	#define POOL_HSIC_2_IDX 5
	#define POOL_HSIC_3_IDX 6
	#define POOL_HSIC_4_IDX 7
	#define POOL_HSIC_WRITE_IDX 8
	#define POOL_HSIC_2_WRITE_IDX 9
	#define POOL_HSIC_3_WRITE_IDX 10
	#define POOL_HSIC_4_WRITE_IDX 11

	#ifdef CONFIG_DIAGFWD_BRIDGE_CODE
	#define NUM_MEMORY_POOLS 12
	#else
	#define NUM_MEMORY_POOLS 4
	#endif

	#define MODEM_DATA 0
	#define LPASS_DATA 1
	#define WCNSS_DATA 2
	#define APPS_DATA 3
	#define SDIO_DATA 4
	#define HSIC_DATA 5
	#define HSIC_2_DATA 6
	#define SMUX_DATA 10
	#define APPS_PROC 1
	#define MSG_MASK_SIZE 10000
	#define LOG_MASK_SIZE 8000
	#define EVENT_MASK_SIZE 1000
	#define USER_SPACE_DATA 8192
	#define PKT_SIZE 4096
	#define MAX_EQUIP_ID 15
	#define DIAG_CTRL_MSG_LOG_MASK 9
	#define DIAG_CTRL_MSG_EVENT_MASK 10
	#define DIAG_CTRL_MSG_F3_MASK 11
	#define CONTROL_CHAR 0x7E

	#define DIAG_CON_APSS (0x0001) /* Bit mask for APSS */
	#define DIAG_CON_MPSS (0x0002) /* Bit mask for MPSS */
	#define DIAG_CON_LPASS (0x0004) /* Bit mask for LPASS */
	#define DIAG_CON_WCNSS (0x0008) /* Bit mask for WCNSS */

	#define NUM_STM_PROCESSORS 4

	#define DIAG_STM_MODEM 0x01
	#define DIAG_STM_LPASS 0x02
	#define DIAG_STM_WCNSS 0x04
	#define DIAG_STM_APPS 0x08

	/*
	* The status bit masks when received in a signal handler are to be
	* used in conjunction with the peripheral list bit mask to determine the
	* status for a peripheral. For instance, 0x00010002 would denote an open
	* status on the MPSS
	*/
	#define DIAG_STATUS_OPEN (0x00010000) /* DCI channel open status mask */
	#define DIAG_STATUS_CLOSED (0x00020000) /* DCI channel closed status mask */

	#define MODE_REALTIME 1
	#define MODE_NONREALTIME 0

	#define NUM_SMD_DATA_CHANNELS 3
	#define NUM_SMD_CONTROL_CHANNELS NUM_SMD_DATA_CHANNELS
	#define NUM_SMD_DCI_CHANNELS 1
	#define NUM_SMD_CMD_CHANNELS 1
	#define NUM_SMD_DCI_CMD_CHANNELS 1

	#define SMD_DATA_TYPE 0
	#define SMD_CNTL_TYPE 1
	#define SMD_DCI_TYPE 2
	#define SMD_CMD_TYPE 3
	#define SMD_DCI_CMD_TYPE 4

	#define DIAG_PROC_DCI 1
	#define DIAG_PROC_MEMORY_DEVICE 2

	/* Flags to vote the DCI or Memory device process up or down
	when it becomes active or inactive */
	#define VOTE_DOWN 0
	#define VOTE_UP 1

	#define DIAG_TS_SIZE 50

	/* Maximum number of pkt reg supported at initialization*/
	extern int diag_max_reg;
	extern int diag_threshold_reg;

	#define APPEND_DEBUG(ch) \
	do { \
	diag_debug_buf[diag_debug_buf_idx] = ch; \
	(diag_debug_buf_idx < 1023) ? \
	(diag_debug_buf_idx++) : (diag_debug_buf_idx = 0); \
	} while (0)

	/* List of remote processor supported */
	enum remote_procs {
	MDM = 1,
	MDM2 = 2,
	MDM3 = 3,
	MDM4 = 4,
	QSC = 5,
	};

	struct diag_master_table {
	uint16_t cmd_code;
	uint16_t subsys_id;
	uint32_t client_id;
	uint16_t cmd_code_lo;
	uint16_t cmd_code_hi;
	int process_id;
	};

	struct bindpkt_params_per_process {
	/* Name of the synchronization object associated with this proc */
	char sync_obj_name[MAX_SYNC_OBJ_NAME_SIZE];
	uint32_t count; /* Number of entries in this bind */
	struct bindpkt_params params; / first bind params */
	};

	struct bindpkt_params {
	uint16_t cmd_code;
	uint16_t subsys_id;
	uint16_t cmd_code_lo;
	uint16_t cmd_code_hi;
	/* For Central Routing, used to store Processor number */
	uint16_t proc_id;
	uint32_t event_id;
	uint32_t log_code;
	/* For Central Routing, used to store SMD channel pointer */
	uint32_t client_id;
	};

	struct diag_write_device {
	void *buf;
	int length;
	};

	struct diag_client_map {
	char name[20];
	int pid;
	};

	struct diag_nrt_wake_lock {
	int enabled;
	int ref_count;
	int copy_count;
	struct wake_lock read_lock;
	spinlock_t read_spinlock;
	};

	struct real_time_vote_t {
	uint16_t proc;
	uint8_t real_time_vote;
	};

	/* This structure is defined in USB header file */
	#ifndef CONFIG_DIAG_OVER_USB
	struct diag_request {
	char *buf;
	int length;
	int actual;
	int status;
	void *context;
	};
	#endif

	struct diag_smd_info {
	int peripheral; /* The peripheral this smd channel communicates with */
	int type; /* The type of smd channel (data, control, dci) */
	uint16_t peripheral_mask;

	smd_channel_t *ch;
	smd_channel_t *ch_save;

	struct mutex smd_ch_mutex;

	int in_busy_1;
	int in_busy_2;

	unsigned char *buf_in_1;
	unsigned char *buf_in_2;

	struct diag_request *write_ptr_1;
	struct diag_request *write_ptr_2;

	struct diag_nrt_wake_lock nrt_lock;

	struct work_struct diag_read_smd_work;
	struct work_struct diag_notify_update_smd_work;
	int notify_context;
	struct work_struct diag_general_smd_work;
	int general_context;

	/*
	* Function ptr for function to call to process the data that
	* was just read from the smd channel
	*/
	int (process_smd_read_data)(struct diag_smd_info smd_info,
	void *buf, int num_bytes);
	};

	struct diagchar_dev {

	/* State for the char driver */
	unsigned int major;
	unsigned int minor_start;
	int num;
	struct cdev *cdev;
	char *name;
	int dropped_count;
	struct class *diagchar_class;
	int ref_count;
	struct mutex diagchar_mutex;
	wait_queue_head_t wait_q;
	wait_queue_head_t smd_wait_q;
	struct diag_client_map *client_map;
	int *data_ready;
	int num_clients;
	int polling_reg_flag;
	struct diag_write_device *buf_tbl;
	unsigned int buf_tbl_size;
	int use_device_tree;
	int supports_separate_cmdrsp;
	/* The state requested in the STM command */
	int stm_state_requested[NUM_STM_PROCESSORS];
	/* The current STM state */
	int stm_state[NUM_STM_PROCESSORS];
	/* Whether or not the peripheral supports STM */
	int peripheral_supports_stm[NUM_SMD_CONTROL_CHANNELS];
	/* DCI related variables */
	struct dci_pkt_req_tracking_tbl *req_tracking_tbl;
	struct diag_dci_client_tbl *dci_client_tbl;
	int dci_tag;
	int dci_client_id;
	struct mutex dci_mutex;
	int num_dci_client;
	unsigned char *apps_dci_buf;
	int dci_state;
	struct workqueue_struct *diag_dci_wq;
	/* Memory pool parameters */
	unsigned int itemsize;
	unsigned int poolsize;
	unsigned int itemsize_hdlc;
	unsigned int poolsize_hdlc;
	unsigned int itemsize_user;
	unsigned int poolsize_user;
	unsigned int itemsize_write_struct;
	unsigned int poolsize_write_struct;
	unsigned int debug_flag;
	/* State for the mempool for the char driver */
	mempool_t *diagpool;
	mempool_t *diag_hdlc_pool;
	mempool_t *diag_user_pool;
	mempool_t *diag_write_struct_pool;
	struct mutex diagmem_mutex;
	int count;
	int count_hdlc_pool;
	int count_user_pool;
	int count_write_struct_pool;
	int used;
	/* Buffers for masks */
	struct mutex diag_cntl_mutex;
	struct diag_ctrl_event_mask *event_mask;
	struct diag_ctrl_log_mask *log_mask;
	struct diag_ctrl_msg_mask *msg_mask;
	struct diag_ctrl_feature_mask *feature_mask;
	/* State for diag forwarding */
	struct diag_smd_info smd_data[NUM_SMD_DATA_CHANNELS];
	struct diag_smd_info smd_cntl[NUM_SMD_CONTROL_CHANNELS];
	struct diag_smd_info smd_dci[NUM_SMD_DCI_CHANNELS];
	struct diag_smd_info smd_cmd[NUM_SMD_CMD_CHANNELS];
	struct diag_smd_info smd_dci_cmd[NUM_SMD_DCI_CMD_CHANNELS];
	int separate_cmdrsp[NUM_SMD_CONTROL_CHANNELS];
	unsigned char *usb_buf_out;
	unsigned char *apps_rsp_buf;
	/* buffer for updating mask to peripherals */
	unsigned char *buf_msg_mask_update;
	unsigned char *buf_log_mask_update;
	unsigned char *buf_event_mask_update;
	unsigned char *buf_feature_mask_update;
	int read_len_legacy;
	struct mutex diag_hdlc_mutex;
	unsigned char *hdlc_buf;
	unsigned hdlc_count;
	unsigned hdlc_escape;
	int in_busy_pktdata;
	struct device *dci_device;
	struct device *dci_cmd_device;
	/* Variables for non real time mode */
	int real_time_mode;
	int real_time_update_busy;
	uint16_t proc_active_mask;
	uint16_t proc_rt_vote_mask;
	struct mutex real_time_mutex;
	struct work_struct diag_real_time_work;
	struct workqueue_struct *diag_real_time_wq;
	#ifdef CONFIG_DIAG_OVER_USB
	int usb_connected;
	struct usb_diag_ch *legacy_ch;
	struct work_struct diag_proc_hdlc_work;
	struct work_struct diag_read_work;
	struct work_struct diag_usb_connect_work;
	struct work_struct diag_usb_disconnect_work;
	#endif
	struct workqueue_struct *diag_wq;
	struct work_struct diag_drain_work;
	struct workqueue_struct *diag_cntl_wq;
	uint8_t *msg_masks;
	uint8_t *log_masks;
	int log_masks_length;
	uint8_t *event_masks;
	uint8_t log_on_demand_support;
	struct diag_master_table *table;
	uint8_t *pkt_buf;
	int pkt_length;
	struct diag_request *usb_read_ptr;
	struct diag_request *write_ptr_svc;
	int logging_mode;
	int mask_check;
	int logging_process_id;
	struct task_struct *socket_process;
	struct task_struct *callback_process;
	#ifdef CONFIG_DIAG_SDIO_PIPE
	unsigned char *buf_in_sdio;
	unsigned char *usb_buf_mdm_out;
	struct sdio_channel *sdio_ch;
	int read_len_mdm;
	int in_busy_sdio;
	struct usb_diag_ch *mdm_ch;
	struct work_struct diag_read_mdm_work;
	struct workqueue_struct *diag_sdio_wq;
	struct work_struct diag_read_sdio_work;
	struct work_struct diag_close_sdio_work;
	struct diag_request *usb_read_mdm_ptr;
	struct diag_request *write_ptr_mdm;
	#endif
	#ifdef CONFIG_DIAGFWD_BRIDGE_CODE
	spinlock_t hsic_ready_spinlock;
	/* common for all bridges */
	struct work_struct diag_connect_work;
	struct work_struct diag_disconnect_work;
	/* SGLTE variables */
	int lcid;
	unsigned char *buf_in_smux;
	int in_busy_smux;
	int diag_smux_enabled;
	int smux_connected;
	struct diag_request *write_ptr_mdm;
	#endif
	};

	extern struct diag_bridge_dev *diag_bridge;
	extern struct diag_hsic_dev *diag_hsic;
	extern struct diagchar_dev *driver;

	extern int wrap_enabled;
	extern uint16_t wrap_count;

	void diag_get_timestamp(char *time_str);

	#endif