162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * @File ctresource.h 662306a36Sopenharmony_ci * 762306a36Sopenharmony_ci * @Brief 862306a36Sopenharmony_ci * This file contains the definition of generic hardware resources for 962306a36Sopenharmony_ci * resource management. 1062306a36Sopenharmony_ci * 1162306a36Sopenharmony_ci * @Author Liu Chun 1262306a36Sopenharmony_ci * @Date May 13 2008 1362306a36Sopenharmony_ci */ 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci#ifndef CTRESOURCE_H 1662306a36Sopenharmony_ci#define CTRESOURCE_H 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci#include <linux/types.h> 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_cienum RSCTYP { 2162306a36Sopenharmony_ci SRC, 2262306a36Sopenharmony_ci SRCIMP, 2362306a36Sopenharmony_ci AMIXER, 2462306a36Sopenharmony_ci SUM, 2562306a36Sopenharmony_ci DAIO, 2662306a36Sopenharmony_ci NUM_RSCTYP /* This must be the last one and less than 16 */ 2762306a36Sopenharmony_ci}; 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_cistruct rsc_ops; 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_cistruct rsc { 3262306a36Sopenharmony_ci u32 idx:12; /* The index of a resource */ 3362306a36Sopenharmony_ci u32 type:4; /* The type (RSCTYP) of a resource */ 3462306a36Sopenharmony_ci u32 conj:12; /* Current conjugate index */ 3562306a36Sopenharmony_ci u32 msr:4; /* The Master Sample Rate a resource working on */ 3662306a36Sopenharmony_ci void *ctrl_blk; /* Chip specific control info block for a resource */ 3762306a36Sopenharmony_ci struct hw *hw; /* Chip specific object for hardware access means */ 3862306a36Sopenharmony_ci const struct rsc_ops *ops; /* Generic resource operations */ 3962306a36Sopenharmony_ci}; 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_cistruct rsc_ops { 4262306a36Sopenharmony_ci void (*master)(struct rsc *rsc); /* Move to master resource */ 4362306a36Sopenharmony_ci void (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */ 4462306a36Sopenharmony_ci int (*index)(const struct rsc *rsc); /* Return the index of resource */ 4562306a36Sopenharmony_ci /* Return the output slot number */ 4662306a36Sopenharmony_ci int (*output_slot)(const struct rsc *rsc); 4762306a36Sopenharmony_ci}; 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_ciint 5062306a36Sopenharmony_cirsc_init(struct rsc *rsc, u32 idx, enum RSCTYP type, u32 msr, struct hw *hw); 5162306a36Sopenharmony_ciint rsc_uninit(struct rsc *rsc); 5262306a36Sopenharmony_ci 5362306a36Sopenharmony_cistruct rsc_mgr { 5462306a36Sopenharmony_ci enum RSCTYP type; /* The type (RSCTYP) of resource to manage */ 5562306a36Sopenharmony_ci unsigned int amount; /* The total amount of a kind of resource */ 5662306a36Sopenharmony_ci unsigned int avail; /* The amount of currently available resources */ 5762306a36Sopenharmony_ci unsigned char *rscs; /* The bit-map for resource allocation */ 5862306a36Sopenharmony_ci void *ctrl_blk; /* Chip specific control info block */ 5962306a36Sopenharmony_ci struct hw *hw; /* Chip specific object for hardware access */ 6062306a36Sopenharmony_ci}; 6162306a36Sopenharmony_ci 6262306a36Sopenharmony_ci/* Resource management is based on bit-map mechanism */ 6362306a36Sopenharmony_ciint rsc_mgr_init(struct rsc_mgr *mgr, enum RSCTYP type, 6462306a36Sopenharmony_ci unsigned int amount, struct hw *hw); 6562306a36Sopenharmony_ciint rsc_mgr_uninit(struct rsc_mgr *mgr); 6662306a36Sopenharmony_ciint mgr_get_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int *ridx); 6762306a36Sopenharmony_ciint mgr_put_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int idx); 6862306a36Sopenharmony_ci 6962306a36Sopenharmony_ci#endif /* CTRESOURCE_H */ 70