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a7fa0d047f
Referring to IEC 61883-1, oMPR and iMPR, oPCR and iPCR have some fields with the same role in the same position. This patch renames some macros, variables and function arguments with "i" in its prefix to reuse them between oMPR and iMPR, oPCR and iPCR. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
#ifndef SOUND_FIREWIRE_CMP_H_INCLUDED
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#define SOUND_FIREWIRE_CMP_H_INCLUDED
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#include <linux/mutex.h>
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#include <linux/types.h>
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#include "iso-resources.h"
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struct fw_unit;
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/**
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* struct cmp_connection - manages an isochronous connection to a device
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* @speed: the connection's actual speed
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*
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* This structure manages (using CMP) an isochronous stream between the local
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* computer and a device's input plug (iPCR) and output plug (oPCR).
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*
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* There is no corresponding oPCR created on the local computer, so it is not
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* possible to overlay connections on top of this one.
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*/
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struct cmp_connection {
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int speed;
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/* private: */
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bool connected;
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struct mutex mutex;
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struct fw_iso_resources resources;
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__be32 last_pcr_value;
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unsigned int pcr_index;
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unsigned int max_speed;
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};
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int cmp_connection_init(struct cmp_connection *connection,
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struct fw_unit *unit,
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unsigned int pcr_index);
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void cmp_connection_destroy(struct cmp_connection *connection);
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int cmp_connection_establish(struct cmp_connection *connection,
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unsigned int max_payload);
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int cmp_connection_update(struct cmp_connection *connection);
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void cmp_connection_break(struct cmp_connection *connection);
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#endif
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