mirror of
https://github.com/patjak/facetimehd.git
synced 2026-04-09 19:10:01 +02:00
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/*
|
|
* Broadcom PCIe 1570 webcam driver
|
|
*
|
|
* Copyright (C) 2015 Sven Schnelle <svens@stackframe.org>
|
|
*
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef _FTHD_RINGBUF_H
|
|
#define _FTHD_RINGBUF_H
|
|
|
|
#define FTHD_RINGBUF_ENTRY_SIZE 64
|
|
|
|
#define FTHD_RINGBUF_ADDRESS_FLAGS 0
|
|
#define FTHD_RINGBUF_REQUEST_SIZE 4
|
|
#define FTHD_RINGBUF_RESPONSE_SIZE 8
|
|
|
|
enum ringbuf_type_t {
|
|
RINGBUF_TYPE_H2T=0,
|
|
RINGBUF_TYPE_T2H=1,
|
|
RINGBUF_TYPE_UNIDIRECTIONAL,
|
|
};
|
|
|
|
struct fthd_ringbuf {
|
|
void *doorbell;
|
|
int idx;
|
|
};
|
|
|
|
struct fw_channel;
|
|
struct fthd_private;
|
|
extern void fthd_channel_ringbuf_dump(struct fthd_private *dev_priv, struct fw_channel *chan);
|
|
extern void fthd_channel_ringbuf_init(struct fthd_private *dev_priv, struct fw_channel *chan);
|
|
extern u32 fthd_channel_ringbuf_get_entry(struct fthd_private *, struct fw_channel *);
|
|
extern u32 fthd_channel_ringbuf_send(struct fthd_private *dev_priv, struct fw_channel *chan,
|
|
u32 data_offset, u32 request_size, u32 response_size);
|
|
|
|
extern u32 fthd_channel_ringbuf_receive(struct fthd_private *dev_priv,
|
|
struct fw_channel *chan);
|
|
|
|
#endif
|