1 #ifndef SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
2 #define SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
4 #include <linux/mutex.h>
5 #include <linux/types.h>
10 * struct fw_iso_resources - manages channel/bandwidth allocation
11 * @channels_mask: if the device does not support all channel numbers, set this
12 * bit mask to something else than the default (all ones)
14 * This structure manages (de)allocation of isochronous resources (channel and
15 * bandwidth) for one isochronous stream.
17 struct fw_iso_resources {
23 unsigned int bandwidth; /* in bandwidth units, without overhead */
24 unsigned int bandwidth_overhead;
25 int generation; /* in which allocation is valid */
29 int fw_iso_resources_init(struct fw_iso_resources *r,
30 struct fw_unit *unit);
31 void fw_iso_resources_destroy(struct fw_iso_resources *r);
33 int fw_iso_resources_allocate(struct fw_iso_resources *r,
34 unsigned int max_payload_bytes, int speed);
35 int fw_iso_resources_update(struct fw_iso_resources *r);
36 void fw_iso_resources_free(struct fw_iso_resources *r);