1#ifndef SOUND_FIREWIRE_CMP_H_INCLUDED
 2#define SOUND_FIREWIRE_CMP_H_INCLUDED
 3
 4#include <linux/mutex.h>
 5#include <linux/types.h>
 6#include "iso-resources.h"
 7
 8struct fw_unit;
 9
10/**
11 * struct cmp_connection - manages an isochronous connection to a device
12 * @speed: the connection's actual speed
13 *
14 * This structure manages (using CMP) an isochronous stream from the local
15 * computer to a device's input plug (iPCR).
16 *
17 * There is no corresponding oPCR created on the local computer, so it is not
18 * possible to overlay connections on top of this one.
19 */
20struct cmp_connection {
21	int speed;
22	/* private: */
23	bool connected;
24	struct mutex mutex;
25	struct fw_iso_resources resources;
26	__be32 last_pcr_value;
27	unsigned int pcr_index;
28	unsigned int max_speed;
29};
30
31int cmp_connection_init(struct cmp_connection *connection,
32			struct fw_unit *unit,
33			unsigned int ipcr_index);
34void cmp_connection_destroy(struct cmp_connection *connection);
35
36int cmp_connection_establish(struct cmp_connection *connection,
37			     unsigned int max_payload);
38int cmp_connection_update(struct cmp_connection *connection);
39void cmp_connection_break(struct cmp_connection *connection);
40
41#endif

 1#ifndef SOUND_FIREWIRE_CMP_H_INCLUDED
 2#define SOUND_FIREWIRE_CMP_H_INCLUDED
 3
 4#include <linux/mutex.h>
 5#include <linux/types.h>
 6#include "iso-resources.h"
 7
 8struct fw_unit;
 9
10/**
11 * struct cmp_connection - manages an isochronous connection to a device
12 * @speed: the connection's actual speed
13 *
14 * This structure manages (using CMP) an isochronous stream from the local
15 * computer to a device's input plug (iPCR).
16 *
17 * There is no corresponding oPCR created on the local computer, so it is not
18 * possible to overlay connections on top of this one.
19 */
20struct cmp_connection {
21	int speed;
22	/* private: */
23	bool connected;
24	struct mutex mutex;
25	struct fw_iso_resources resources;
26	__be32 last_pcr_value;
27	unsigned int pcr_index;
28	unsigned int max_speed;
29};
30
31int cmp_connection_init(struct cmp_connection *connection,
32			struct fw_unit *unit,
33			unsigned int ipcr_index);
34void cmp_connection_destroy(struct cmp_connection *connection);
35
36int cmp_connection_establish(struct cmp_connection *connection,
37			     unsigned int max_payload);
38int cmp_connection_update(struct cmp_connection *connection);
39void cmp_connection_break(struct cmp_connection *connection);
40
41#endif