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Linux/include/linux/fsl/bestcomm/gen_bd.h

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  1 /*
  2  * Header for Bestcomm General Buffer Descriptor tasks driver
  3  *
  4  *
  5  * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com>
  6  * Copyright (C) 2006 AppSpec Computer Technologies Corp.
  7  *                    Jeff Gibbons <jeff.gibbons@appspec.com>
  8  *
  9  * This program is free software; you can redistribute  it and/or modify it
 10  * under the terms of the GNU General Public License version 2 as published
 11  * by the Free Software Foundation.
 12  *
 13  *
 14  */
 15 
 16 #ifndef __BESTCOMM_GEN_BD_H__
 17 #define __BESTCOMM_GEN_BD_H__
 18 
 19 struct bcom_gen_bd {
 20         u32     status;
 21         u32     buf_pa;
 22 };
 23 
 24 
 25 extern struct bcom_task *
 26 bcom_gen_bd_rx_init(int queue_len, phys_addr_t fifo,
 27                         int initiator, int ipr, int maxbufsize);
 28 
 29 extern int
 30 bcom_gen_bd_rx_reset(struct bcom_task *tsk);
 31 
 32 extern void
 33 bcom_gen_bd_rx_release(struct bcom_task *tsk);
 34 
 35 
 36 extern struct bcom_task *
 37 bcom_gen_bd_tx_init(int queue_len, phys_addr_t fifo,
 38                         int initiator, int ipr);
 39 
 40 extern int
 41 bcom_gen_bd_tx_reset(struct bcom_task *tsk);
 42 
 43 extern void
 44 bcom_gen_bd_tx_release(struct bcom_task *tsk);
 45 
 46 
 47 /* PSC support utility wrappers */
 48 struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len,
 49                                            phys_addr_t fifo, int maxbufsize);
 50 struct bcom_task * bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len,
 51                                            phys_addr_t fifo);
 52 #endif  /* __BESTCOMM_GEN_BD_H__ */
 53 
 54 

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