130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/*
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*****************************************************************************
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*
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* FILE : unifi_clients.h
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*
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* PURPOSE : Private header file for unifi clients.
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*
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* UDI = UniFi Debug Interface
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*
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* Copyright (C) 2005-2008 by Cambridge Silicon Radio Ltd.
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*
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* Refer to LICENSE.txt included with this source code for details on
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* the license terms.
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*
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*****************************************************************************
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*/
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#ifndef __LINUX_UNIFI_CLIENTS_H__
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#define __LINUX_UNIFI_CLIENTS_H__ 1
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#include <linux/kernel.h>
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#define MAX_UDI_CLIENTS 8
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/* The start of the range of process ids allocated for ul clients */
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#define UDI_SENDER_ID_BASE 0xC000
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#define UDI_SENDER_ID_SHIFT 8
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/* Structure to hold a UDI logged signal */
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typedef struct {
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/* List link structure */
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struct list_head q;
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/* The message that will be passed to the user app */
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udi_msg_t msg;
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/* Signal body and data follow */
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} udi_log_t;
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typedef struct ul_client ul_client_t;
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typedef void (*udi_event_t)(ul_client_t *client,
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const u8 *sigdata, int signal_len,
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const bulk_data_param_t *bulkdata,
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int dir);
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void logging_handler(void *ospriv,
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u8 *sigdata, u32 signal_len,
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const bulk_data_param_t *bulkdata,
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enum udi_log_direction direction);
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/*
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* Structure describing a bulk data slot.
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* The length field is used to indicate empty/occupied state.
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*/
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typedef struct _bulk_data
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{
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unsigned char ptr[2000];
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unsigned int length;
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} bulk_data_t;
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struct ul_client {
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/* Index of this client in the ul_clients array. */
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int client_id;
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/* Index of UniFi device to which this client is attached. */
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int instance;
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/* Flag to say whether this client has been enabled. */
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int udi_enabled;
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/* Value to use in signal->SenderProcessId */
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int sender_id;
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/* Configuration flags, e.g blocking, logging, etc. */
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unsigned int configuration;
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udi_event_t event_hook;
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/* A list to hold signals received from UniFi for reading by read() */
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struct list_head udi_log;
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/* Semaphore to protect the udi_log list */
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struct semaphore udi_sem;
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/*
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* Linux waitqueue to support blocking read and poll.
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* Logging clients should wait on udi_log. while
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* blocking clients should wait on wake_up_wq.
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*/
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wait_queue_head_t udi_wq;
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CSR_SIGNAL* reply_signal;
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bulk_data_t* reply_bulkdata[UNIFI_MAX_DATA_REFERENCES];
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u16 signal_filter[SIG_FILTER_SIZE];
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/* ------------------------------------------------------------------- */
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/* Code below here is used by the sme_native configuration only */
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/* Flag to wake up blocking clients waiting on udi_wq. */
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int wake_up_wq_id;
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/*
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* A 0x00 - 0x0F mask to apply in signal->SenderProcessId.
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* Every time we do a blocking mlme request we increase this value.
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* The mlme_wait_for_reply() will wait for this sequence number.
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* Only the MLME blocking functions update this field.
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*/
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unsigned char seq_no;
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/*
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* A 0x00 - 0x0F counter, containing the sequence number of
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* the signal that this client has last received.
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* Only the MLME blocking functions update this field.
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*/
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unsigned char wake_seq_no;
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unifiio_snap_filter_t snap_filter;
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}; /* struct ul_client */
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#endif /* __LINUX_UNIFI_CLIENTS_H__ */
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