arch/powerpc/sysdev/bestcomm/gen_bd.h

/*
 * Header for Bestcomm General Buffer Descriptor tasks driver
 *
 *
 * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com>
 * Copyright (C) 2006 AppSpec Computer Technologies Corp.
 *                    Jeff Gibbons <jeff.gibbons@appspec.com>
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 *
 *
 */

#ifndef __BESTCOMM_GEN_BD_H__
#define __BESTCOMM_GEN_BD_H__

struct bcom_gen_bd {
	u32	status;
	u32	buf_pa;
};


extern struct bcom_task *
bcom_gen_bd_rx_init(int queue_len, phys_addr_t fifo,
			int initiator, int ipr, int maxbufsize);

extern int
bcom_gen_bd_rx_reset(struct bcom_task *tsk);

extern void
bcom_gen_bd_rx_release(struct bcom_task *tsk);


extern struct bcom_task *
bcom_gen_bd_tx_init(int queue_len, phys_addr_t fifo,
			int initiator, int ipr);

extern int
bcom_gen_bd_tx_reset(struct bcom_task *tsk);

extern void
bcom_gen_bd_tx_release(struct bcom_task *tsk);


/* PSC support utility wrappers */
struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len,
					   phys_addr_t fifo, int maxbufsize);
struct bcom_task * bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len,
					   phys_addr_t fifo);
#endif  /* __BESTCOMM_GEN_BD_H__ */