iso-resources.h

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#ifndef SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
#define SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED

#include <linux/mutex.h>
#include <linux/types.h>

struct fw_unit;

struct fw_iso_resources {
    u64 channels_mask;
    /* private: */
    struct fw_unit *unit;
    struct mutex mutex;
    unsigned int channel;
    unsigned int bandwidth; /* in bandwidth units, without overhead */
    unsigned int bandwidth_overhead;
    int generation; /* in which allocation is valid */
    bool allocated;
};

int fw_iso_resources_init(struct fw_iso_resources *r,
              struct fw_unit *unit);
void fw_iso_resources_destroy(struct fw_iso_resources *r);

int fw_iso_resources_allocate(struct fw_iso_resources *r,
                  unsigned int max_payload_bytes, int speed);
int fw_iso_resources_update(struct fw_iso_resources *r);
void fw_iso_resources_free(struct fw_iso_resources *r);

#endif