1/*
 2 * Copyright (C) 2004, 2005 MIPS Technologies, Inc.  All rights reserved.
 3 *
 4 */
 5
 6#ifndef __ASM_RTLX_H_
 7#define __ASM_RTLX_H_
 8
 9#include <irq.h>
10
11#define LX_NODE_BASE 10
12
13#define MIPS_CPU_RTLX_IRQ 0
14
15#define RTLX_VERSION 2
16#define RTLX_xID 0x12345600
17#define RTLX_ID (RTLX_xID | RTLX_VERSION)
18#define RTLX_CHANNELS 8
19
20#define RTLX_CHANNEL_STDIO	0
21#define RTLX_CHANNEL_DBG	1
22#define RTLX_CHANNEL_SYSIO	2
23
24extern int rtlx_open(int index, int can_sleep);
25extern int rtlx_release(int index);
26extern ssize_t rtlx_read(int index, void __user *buff, size_t count);
27extern ssize_t rtlx_write(int index, const void __user *buffer, size_t count);
28extern unsigned int rtlx_read_poll(int index, int can_sleep);
29extern unsigned int rtlx_write_poll(int index);
30
31enum rtlx_state {
32	RTLX_STATE_UNUSED = 0,
33	RTLX_STATE_INITIALISED,
34	RTLX_STATE_REMOTE_READY,
35	RTLX_STATE_OPENED
36};
37
38#define RTLX_BUFFER_SIZE 2048
39
40/* each channel supports read and write.
41   linux (vpe0) reads lx_buffer  and writes rt_buffer
42   SP (vpe1) reads rt_buffer and writes lx_buffer
43*/
44struct rtlx_channel {
45	enum rtlx_state rt_state;
46	enum rtlx_state lx_state;
47
48	int buffer_size;
49
50	/* read and write indexes per buffer */
51	int rt_write, rt_read;
52	char *rt_buffer;
53
54	int lx_write, lx_read;
55	char *lx_buffer;
56};
57
58struct rtlx_info {
59	unsigned long id;
60	enum rtlx_state state;
61
62	struct rtlx_channel channel[RTLX_CHANNELS];
63};
64
65#endif /* __ASM_RTLX_H_ */

 1/*
 2 * Copyright (C) 2004, 2005 MIPS Technologies, Inc.  All rights reserved.
 3 *
 4 */
 5
 6#ifndef __ASM_RTLX_H_
 7#define __ASM_RTLX_H_
 8
 9#include <irq.h>
10
11#define LX_NODE_BASE 10
12
13#define MIPS_CPU_RTLX_IRQ 0
14
15#define RTLX_VERSION 2
16#define RTLX_xID 0x12345600
17#define RTLX_ID (RTLX_xID | RTLX_VERSION)
18#define RTLX_CHANNELS 8
19
20#define RTLX_CHANNEL_STDIO	0
21#define RTLX_CHANNEL_DBG	1
22#define RTLX_CHANNEL_SYSIO	2
23
24extern int rtlx_open(int index, int can_sleep);
25extern int rtlx_release(int index);
26extern ssize_t rtlx_read(int index, void __user *buff, size_t count);
27extern ssize_t rtlx_write(int index, const void __user *buffer, size_t count);
28extern unsigned int rtlx_read_poll(int index, int can_sleep);
29extern unsigned int rtlx_write_poll(int index);
30
31enum rtlx_state {
32	RTLX_STATE_UNUSED = 0,
33	RTLX_STATE_INITIALISED,
34	RTLX_STATE_REMOTE_READY,
35	RTLX_STATE_OPENED
36};
37
38#define RTLX_BUFFER_SIZE 2048
39
40/* each channel supports read and write.
41   linux (vpe0) reads lx_buffer  and writes rt_buffer
42   SP (vpe1) reads rt_buffer and writes lx_buffer
43*/
44struct rtlx_channel {
45	enum rtlx_state rt_state;
46	enum rtlx_state lx_state;
47
48	int buffer_size;
49
50	/* read and write indexes per buffer */
51	int rt_write, rt_read;
52	char *rt_buffer;
53
54	int lx_write, lx_read;
55	char *lx_buffer;
56};
57
58struct rtlx_info {
59	unsigned long id;
60	enum rtlx_state state;
61
62	struct rtlx_channel channel[RTLX_CHANNELS];
63};
64
65#endif /* __ASM_RTLX_H_ */