kernel-ark/include/asm-mips/rtlx.h
Ralf Baechle afc4841d8a Turn rtlx upside down.
o Coding style
 o Race condition on open
 o Switch to dynamic major
 o Header file cleanup
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-11-07 18:05:33 +00:00

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C

/*
* Copyright (C) 2004, 2005 MIPS Technologies, Inc. All rights reserved.
*
*/
#ifndef _RTLX_H
#define _RTLX_H_
#define LX_NODE_BASE 10
#define MIPSCPU_INT_BASE 16
#define MIPS_CPU_RTLX_IRQ 0
#define RTLX_VERSION 1
#define RTLX_xID 0x12345600
#define RTLX_ID (RTLX_xID | RTLX_VERSION)
#define RTLX_CHANNELS 8
#define RTLX_BUFFER_SIZE 1024
/*
* lx_state bits
*/
#define RTLX_STATE_OPENED 1UL
/* each channel supports read and write.
linux (vpe0) reads lx_buffer and writes rt_buffer
SP (vpe1) reads rt_buffer and writes lx_buffer
*/
struct rtlx_channel {
unsigned long lx_state;
int buffer_size;
/* read and write indexes per buffer */
int rt_write, rt_read;
char *rt_buffer;
int lx_write, lx_read;
char *lx_buffer;
void *queues;
};
struct rtlx_info {
unsigned long id;
struct rtlx_channel channel[RTLX_CHANNELS];
};
#endif /* _RTLX_H_ */