Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) struct fw_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * struct fw_iso_resources - manages channel/bandwidth allocation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * @channels_mask: if the device does not support all channel numbers, set this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *                 bit mask to something else than the default (all ones)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * This structure manages (de)allocation of isochronous resources (channel and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * bandwidth) for one isochronous stream.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct fw_iso_resources {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	u64 channels_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	/* private: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	struct fw_unit *unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	struct mutex mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	unsigned int channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	unsigned int bandwidth; /* in bandwidth units, without overhead */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	unsigned int bandwidth_overhead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	int generation; /* in which allocation is valid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	bool allocated;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) int fw_iso_resources_init(struct fw_iso_resources *r,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 			  struct fw_unit *unit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) void fw_iso_resources_destroy(struct fw_iso_resources *r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int fw_iso_resources_allocate(struct fw_iso_resources *r,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 			      unsigned int max_payload_bytes, int speed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) int fw_iso_resources_update(struct fw_iso_resources *r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) void fw_iso_resources_free(struct fw_iso_resources *r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #endif