/**
 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
 *
 * This source file is released under GPL v2 license (no other versions).
 * See the COPYING file included in the main directory of this source
 * distribution for the license terms and conditions.
 *
 * @File	ctresource.h
 *
 * @Brief
 * This file contains the definition of generic hardware resources for
 * resource management.
 *
 * @Author	Liu Chun
 * @Date 	May 13 2008
 *
 */

#ifndef CTRESOURCE_H
#define CTRESOURCE_H

#include <linux/types.h>

enum RSCTYP {
	SRC,
	SRCIMP,
	AMIXER,
	SUM,
	DAIO,
	NUM_RSCTYP	/* This must be the last one and less than 16 */
};

struct rsc_ops;

struct rsc {
	u32 idx:12;	/* The index of a resource */
	u32 type:4;	/* The type (RSCTYP) of a resource */
	u32 conj:12;	/* Current conjugate index */
	u32 msr:4;	/* The Master Sample Rate a resource working on */
	void *ctrl_blk;	/* Chip specific control info block for a resource */
	struct hw *hw;	/* Chip specific object for hardware access means */
	const struct rsc_ops *ops;	/* Generic resource operations */
};

struct rsc_ops {
	int (*master)(struct rsc *rsc);	/* Move to master resource */
	int (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */
	int (*index)(const struct rsc *rsc); /* Return the index of resource */
	/* Return the output slot number */
	int (*output_slot)(const struct rsc *rsc);
};

int
rsc_init(struct rsc *rsc, u32 idx, enum RSCTYP type, u32 msr, struct hw *hw);
int rsc_uninit(struct rsc *rsc);

struct rsc_mgr {
	enum RSCTYP type; /* The type (RSCTYP) of resource to manage */
	unsigned int amount; /* The total amount of a kind of resource */
	unsigned int avail; /* The amount of currently available resources */
	unsigned char *rscs; /* The bit-map for resource allocation */
	void *ctrl_blk; /* Chip specific control info block */
	struct hw *hw; /* Chip specific object for hardware access */
};

/* Resource management is based on bit-map mechanism */
int rsc_mgr_init(struct rsc_mgr *mgr, enum RSCTYP type,
		 unsigned int amount, struct hw *hw);
int rsc_mgr_uninit(struct rsc_mgr *mgr);
int mgr_get_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int *ridx);
int mgr_put_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int idx);

#endif /* CTRESOURCE_H */
t name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=9ff464db50e437eef131f719cc2e9902eea9c607'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?id=9ff464db50e437eef131f719cc2e9902eea9c607'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/rxrpc?id=9ff464db50e437eef131f719cc2e9902eea9c607'>rxrpc</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/rxrpc/conn_client.c?id=9ff464db50e437eef131f719cc2e9902eea9c607'>conn_client.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/rxrpc/conn_client.c?id=9ff464db50e437eef131f719cc2e9902eea9c607&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
th></tr>