/*
|
* Analogy for Linux, transfer related features
|
*
|
* Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
|
* Copyright (C) 2008 Alexis Berlemont <alexis.berlemont@free.fr>
|
*
|
* Xenomai is free software; you can redistribute it and/or modify it
|
* under the terms of the GNU General Public License as published by
|
* the Free Software Foundation; either version 2 of the License, or
|
* (at your option) any later version.
|
*
|
* Xenomai is distributed in the hope that it will be useful, but
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
* General Public License for more details.
|
*
|
* You should have received a copy of the GNU General Public License
|
* along with Xenomai; if not, write to the Free Software Foundation,
|
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
*/
|
#ifndef _COBALT_RTDM_ANALOGY_TRANSFER_H
|
#define _COBALT_RTDM_ANALOGY_TRANSFER_H
|
|
#include <rtdm/analogy/buffer.h>
|
|
/* IRQ types */
|
#define A4L_IRQ_DISABLED 0
|
|
/* Fields init values */
|
#define A4L_IRQ_UNUSED (unsigned int)((unsigned short)(~0))
|
#define A4L_IDX_UNUSED (unsigned int)(~0)
|
|
/* TODO: IRQ handling must leave transfer for os_facilities */
|
|
struct a4l_device;
|
/* Analogy transfer descriptor */
|
struct a4l_transfer {
|
|
/* Subdevices desc */
|
unsigned int nb_subd;
|
struct a4l_subdevice **subds;
|
|
/* Buffer stuff: the default size */
|
unsigned int default_bufsize;
|
|
/* IRQ in use */
|
/* TODO: irq_desc should vanish */
|
struct a4l_irq_descriptor irq_desc;
|
};
|
|
/* --- Proc function --- */
|
|
int a4l_rdproc_transfer(struct seq_file *p, void *data);
|
|
/* --- Upper layer functions --- */
|
|
void a4l_presetup_transfer(struct a4l_device_context * cxt);
|
int a4l_setup_transfer(struct a4l_device_context * cxt);
|
int a4l_precleanup_transfer(struct a4l_device_context * cxt);
|
int a4l_cleanup_transfer(struct a4l_device_context * cxt);
|
int a4l_reserve_transfer(struct a4l_device_context * cxt, int idx_subd);
|
int a4l_init_transfer(struct a4l_device_context * cxt, struct a4l_cmd_desc * cmd);
|
int a4l_cancel_transfer(struct a4l_device_context * cxt, int idx_subd);
|
int a4l_cancel_transfers(struct a4l_device_context * cxt);
|
|
ssize_t a4l_put(struct a4l_device_context * cxt, void *buf, size_t nbytes);
|
ssize_t a4l_get(struct a4l_device_context * cxt, void *buf, size_t nbytes);
|
|
int a4l_request_irq(struct a4l_device *dev,
|
unsigned int irq,
|
a4l_irq_hdlr_t handler,
|
unsigned long flags, void *cookie);
|
int a4l_free_irq(struct a4l_device *dev, unsigned int irq);
|
unsigned int a4l_get_irq(struct a4l_device *dev);
|
|
int a4l_ioctl_cancel(struct a4l_device_context * cxt, void *arg);
|
|
#endif /* !_COBALT_RTDM_ANALOGY_TRANSFER_H */
|
