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kernel/linux-rt-4.4.41/include/linux/fsl/bestcomm/gen_bd.h 1.29 KB
5113f6f70   김현기   kernel add
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  /*
   * 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__ */