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linux/arch/powerpc/sysdev/bestcomm/gen_bd.h

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[POWERPC] bestcomm: GenBD task support This is the microcode for the GenBD task and the associated support code. This is a generic task that copy data to/from a hardware FIFO. This is currently locked to 32bits wide access but could be extended as needed. The microcode itself comes directly from the offical API (v2.2) Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-09-16 18:53:30 +08:00
/*
* 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);
powerpc/mpc5200: Add PSC helpers for bestcomm engine Simplify the interface for setting up bestcomm DMA to PSCs by adding some helper functions. The helper function sets the correct values for the initator and ipr values in PSC DMA tasks based on the PSC number. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-07-02 11:38:16 +08:00
/* 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);
[POWERPC] bestcomm: GenBD task support This is the microcode for the GenBD task and the associated support code. This is a generic task that copy data to/from a hardware FIFO. This is currently locked to 32bits wide access but could be extended as needed. The microcode itself comes directly from the offical API (v2.2) Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-09-16 18:53:30 +08:00
#endif /* __BESTCOMM_GEN_BD_H__ */