arch/powerpc/sysdev/bestcomm/gen_bd.h

   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