include/linux/fsl/bestcomm/gen_bd.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Header for Bestcomm General Buffer Descriptor tasks driver
   4  *
   5  * Copyright (C) 2007 Sylvain Munaut <[email protected]>
   6  * Copyright (C) 2006 AppSpec Computer Technologies Corp.
   7  *                    Jeff Gibbons <[email protected]>
   8  */
   9
  10 #ifndef __BESTCOMM_GEN_BD_H__
  11 #define __BESTCOMM_GEN_BD_H__
  12
  13 struct bcom_gen_bd {
  14         u32     status;
  15         u32     buf_pa;
  16 };
  17
  18
  19 extern struct bcom_task *
  20 bcom_gen_bd_rx_init(int queue_len, phys_addr_t fifo,
  21                         int initiator, int ipr, int maxbufsize);
  22
  23 extern int
  24 bcom_gen_bd_rx_reset(struct bcom_task *tsk);
  25
  26 extern void
  27 bcom_gen_bd_rx_release(struct bcom_task *tsk);
  28
  29
  30 extern struct bcom_task *
  31 bcom_gen_bd_tx_init(int queue_len, phys_addr_t fifo,
  32                         int initiator, int ipr);
  33
  34 extern int
  35 bcom_gen_bd_tx_reset(struct bcom_task *tsk);
  36
  37 extern void
  38 bcom_gen_bd_tx_release(struct bcom_task *tsk);
  39
  40
  41 /* PSC support utility wrappers */
  42 struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len,
  43                                            phys_addr_t fifo, int maxbufsize);
  44 struct bcom_task * bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len,
  45                                            phys_addr_t fifo);
  46 #endif  /* __BESTCOMM_GEN_BD_H__ */
  47