mirror of
https://github.com/torvalds/linux.git
synced 2024-11-14 08:02:07 +00:00
64723b3018
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/*
|
|
*
|
|
*
|
|
* Copyright (C) 2005 Mike Isely <isely@pobox.com>
|
|
*
|
|
* This program 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
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
#ifndef __PVRUSB2_IO_H
|
|
#define __PVRUSB2_IO_H
|
|
|
|
#include <linux/usb.h>
|
|
#include <linux/list.h>
|
|
|
|
typedef void (*pvr2_stream_callback)(void *);
|
|
|
|
enum pvr2_buffer_state {
|
|
pvr2_buffer_state_none = 0, // Not on any list
|
|
pvr2_buffer_state_idle = 1, // Buffer is ready to be used again
|
|
pvr2_buffer_state_queued = 2, // Buffer has been queued for filling
|
|
pvr2_buffer_state_ready = 3, // Buffer has data available
|
|
};
|
|
|
|
struct pvr2_stream;
|
|
struct pvr2_buffer;
|
|
|
|
struct pvr2_stream_stats {
|
|
unsigned int buffers_in_queue;
|
|
unsigned int buffers_in_idle;
|
|
unsigned int buffers_in_ready;
|
|
unsigned int buffers_processed;
|
|
unsigned int buffers_failed;
|
|
unsigned int bytes_processed;
|
|
};
|
|
|
|
/* Initialize / tear down stream structure */
|
|
struct pvr2_stream *pvr2_stream_create(void);
|
|
void pvr2_stream_destroy(struct pvr2_stream *);
|
|
void pvr2_stream_setup(struct pvr2_stream *,
|
|
struct usb_device *dev,int endpoint,
|
|
unsigned int tolerance);
|
|
void pvr2_stream_set_callback(struct pvr2_stream *,
|
|
pvr2_stream_callback func,
|
|
void *data);
|
|
void pvr2_stream_get_stats(struct pvr2_stream *,
|
|
struct pvr2_stream_stats *,
|
|
int zero_counts);
|
|
|
|
/* Query / set the nominal buffer count */
|
|
int pvr2_stream_get_buffer_count(struct pvr2_stream *);
|
|
int pvr2_stream_set_buffer_count(struct pvr2_stream *,unsigned int);
|
|
|
|
/* Get a pointer to a buffer that is either idle, ready, or is specified
|
|
named. */
|
|
struct pvr2_buffer *pvr2_stream_get_idle_buffer(struct pvr2_stream *);
|
|
struct pvr2_buffer *pvr2_stream_get_ready_buffer(struct pvr2_stream *);
|
|
struct pvr2_buffer *pvr2_stream_get_buffer(struct pvr2_stream *sp,int id);
|
|
|
|
/* Find out how many buffers are idle or ready */
|
|
int pvr2_stream_get_ready_count(struct pvr2_stream *);
|
|
|
|
|
|
/* Kill all pending buffers and throw away any ready buffers as well */
|
|
void pvr2_stream_kill(struct pvr2_stream *);
|
|
|
|
/* Set up the actual storage for a buffer */
|
|
int pvr2_buffer_set_buffer(struct pvr2_buffer *,void *ptr,unsigned int cnt);
|
|
|
|
/* Find out size of data in the given ready buffer */
|
|
unsigned int pvr2_buffer_get_count(struct pvr2_buffer *);
|
|
|
|
/* Retrieve completion code for given ready buffer */
|
|
int pvr2_buffer_get_status(struct pvr2_buffer *);
|
|
|
|
/* Retrieve ID of given buffer */
|
|
int pvr2_buffer_get_id(struct pvr2_buffer *);
|
|
|
|
/* Start reading into given buffer (kill it if needed) */
|
|
int pvr2_buffer_queue(struct pvr2_buffer *);
|
|
|
|
#endif /* __PVRUSB2_IO_H */
|
|
|
|
/*
|
|
Stuff for Emacs to see, in order to encourage consistent editing style:
|
|
*** Local Variables: ***
|
|
*** mode: c ***
|
|
*** fill-column: 75 ***
|
|
*** tab-width: 8 ***
|
|
*** c-basic-offset: 8 ***
|
|
*** End: ***
|
|
*/
|