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Diffstat (limited to 'mcast/dvbloop/.svn/text-base/dvblo_adap.h.svn-base')
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1 files changed, 155 insertions, 0 deletions
diff --git a/mcast/dvbloop/.svn/text-base/dvblo_adap.h.svn-base b/mcast/dvbloop/.svn/text-base/dvblo_adap.h.svn-base new file mode 100644 index 0000000..26f6bfc --- /dev/null +++ b/mcast/dvbloop/.svn/text-base/dvblo_adap.h.svn-base @@ -0,0 +1,155 @@ +/* dvbloop - A DVB Loopback Device + * Copyright (C) 2006 Christian Praehauser, Deti Fliegl + ----------------------------------------- + * File: dvblo_adap.h + * Desc: Support for virtual DVB adapters + * Date: October 2006 + * Author: Christian Praehauser <cpreahaus@cosy.sbg.ac.at>, Deti Fliegl <deti@fliegl.de> + * + * This file is released under the GPLv2. + */ + +#ifndef _DVBLO_ADAP_H_ +#define _DVBLO_ADAP_H_ + +#include <linux/types.h> +#include "dvb-core/dvbdev.h" +#include "dvb-core/dvb_demux.h" +#include "dvb-core/dmxdev.h" +#include "dvb-core/dvb_net.h" +#include "dvb-core/dvb_frontend.h" +#include <linux/dvb/ca.h> +#include "dvblo_ioctl.h" + +struct dvblo_adap_statistics +{ + + /// Number of TS packets received on the adapter + unsigned long ts_count; +}; + +/** + * Structure that represents a virtual DVB adapter instance + * @todo rename this to dvblo_adap + */ +struct dvblo +{ + + /** + * Level of initialization + * This help dvblo_destroy() to determine which things have to be + * cleaned/unregistered as it is used by dvblo_init() when an error occurs + */ + unsigned int initlev:8; + + /// Flag that is set to 1 if this dvblo structure is completely initialized + unsigned int initdone:1; + + /// The name of this adapter, e.g. "dvblo_adap0" + char name[16]; + struct + { + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12) + /* Since kernel version 2.6.12 the dvb_adapter structure has to be + * embedded into our structure + */ + struct dvb_adapter adap; + +#define DVBLO_DVB_ADAP(dvblop) (&(dvblop)->dvb.adap) +#else /* */ + struct dvb_adapter *adap; + +#define DVBLO_DVB_ADAP(dvblop) ((dvblop)->dvb.adap) +#endif /* */ + struct dvb_device *ca_dev; + struct dmxdev dmxdev; + struct dvb_demux demux; + struct dvb_net net; + struct dvb_frontend frontend; + + /* struct dvb_frontend: tuner_priv was added in 2.6.18 */ +#define FE_PRIV(fep) ((fep)->demodulator_priv) + +#define DVBLO_DVB_ADAP_FEPRIV(dvblop) FE_PRIV(&((dvblop)->dvb.frontend)) + struct dmx_frontend hw_frontend; + struct dmx_frontend mem_frontend; + } dvb; + + /// count, how many times dvblo_demux_start_feed() has been called + int feeding; + struct semaphore sem; + spinlock_t event_lock; + wait_queue_head_t event_queue; + unsigned int event; + struct dvblo_adap_statistics stats; + struct + { + struct dvb_frontend_parameters params; + struct + { + struct dvb_frontend_parameters params; + u32 status; + } tuner; + dvblo_sec_t sec; + dvblo_festatus_t status; + } fe; + + struct dvb_ringbuffer ci_rbuffer; + struct dvb_ringbuffer ci_wbuffer; + dvblo_cacaps_t ca; + + dvblo_private_t private; +}; + +/** + * Adapter configuration paramters + */ +struct dvblo_adap_config +{ + + /// Whether a MAC address is specified by this structure + unsigned int mac_valid:1; + + /// The MAC address of the DVB adapter (if mac_valid == 1) + u8 mac[6]; +}; + +/** + * Creates a new virtual DVB adapter + * @param adapnum The desired adapter number (set to -1 for automatic assignment) + * @param cfg Adapter configuration (may be NULL) + * @param dvblo_out A pointer to the newly allocated DVB adapter context is + * returned via this parameter + */ +int dvblo_adap_create (int adapnum, struct dvblo_adap_config *cfg, struct dvblo **dvblo_out); + +/** + * Destroys a virtual DVB adapter + */ +int dvblo_adap_destroy (struct dvblo *dvblo); + +/** + * Deliver TS packets to the virtual DVB adapter + * @param dvblo The dvblo adapter context + * @param buf Pointer to buffer containing TS packets + * @param len Length of buf in bytes + */ +ssize_t dvblo_adap_deliver_packets (struct dvblo *dvblo, const u8 * buf, size_t len); + +/** + * Handle event bitpattern without race conditions + */ +unsigned int dvblo_set_event (struct dvblo *dvblo, unsigned int event); + +/** + * Get list of currently active PIDs from DVB adapter + */ +int dvblog_adap_get_pids (struct dvblo *dvblo, dvblo_pids_t * pids_out); + +/** + * Get MAC address of virtual DVB adapter + */ +int dvblo_adap_get_mac (struct dvblo *dvblo, u8 * mac_out); + +#endif /* _DVBLO_ADAP_H_ */ |