Release 4.14 arch/mips/include/asm/rtlx.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2004, 2005 MIPS Technologies, Inc.  All rights reserved.
 * Copyright (C) 2013 Imagination Technologies Ltd.
 */
#ifndef __ASM_RTLX_H_

#define __ASM_RTLX_H_

#include <irq.h>


#define RTLX_MODULE_NAME "rtlx"


#define LX_NODE_BASE 10


#define MIPS_CPU_RTLX_IRQ 0


#define RTLX_VERSION 2

#define RTLX_xID 0x12345600

#define RTLX_ID (RTLX_xID | RTLX_VERSION)

#define RTLX_BUFFER_SIZE 2048

#define RTLX_CHANNELS 8


#define RTLX_CHANNEL_STDIO	0

#define RTLX_CHANNEL_DBG	1

#define RTLX_CHANNEL_SYSIO	2

void rtlx_starting(int vpe);
void rtlx_stopping(int vpe);

int rtlx_open(int index, int can_sleep);
int rtlx_release(int index);
ssize_t rtlx_read(int index, void __user *buff, size_t count);
ssize_t rtlx_write(int index, const void __user *buffer, size_t count);
unsigned int rtlx_read_poll(int index, int can_sleep);
unsigned int rtlx_write_poll(int index);

int __init rtlx_module_init(void);
void __exit rtlx_module_exit(void);

void _interrupt_sp(void);

extern struct vpe_notifications rtlx_notify;
extern const struct file_operations rtlx_fops;
extern void (*aprp_hook)(void);


enum rtlx_state {
	
RTLX_STATE_UNUSED = 0,
	
RTLX_STATE_INITIALISED,
	
RTLX_STATE_REMOTE_READY,
	
RTLX_STATE_OPENED
};


extern struct chan_waitqueues {
	
wait_queue_head_t rt_queue;
	
wait_queue_head_t lx_queue;
	
atomic_t in_open;
	
struct mutex mutex;
} channel_wqs[RTLX_CHANNELS];

/* 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 {
	
enum rtlx_state rt_state;
	
enum rtlx_state 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;
};


extern struct rtlx_info {
	
unsigned long id;
	
enum rtlx_state state;
	
int ap_int_pending;	/* Status of 0 or 1 for CONFIG_MIPS_CMP only */

	
struct rtlx_channel channel[RTLX_CHANNELS];
} *rtlx;
#endif /* __ASM_RTLX_H_ */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Ralf Bächle
178
63.80%
4
40.00%
Deng-Cheng Zhu
94
33.69%
2
20.00%
Atsushi Nemoto
3
1.08%
1
10.00%
Kevin D. Kissell
2
0.72%
1
10.00%
Steven J. Hill
1
0.36%
1
10.00%
Vegard Nossum
1
0.36%
1
10.00%
Total
279
100.00%
10
100.00%
Directory: arch/mips/include/asm

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.