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-rw-r--r--arch/mips/include/asm/rtlx.h49
1 files changed, 36 insertions, 13 deletions
diff --git a/arch/mips/include/asm/rtlx.h b/arch/mips/include/asm/rtlx.h
index 90985b61dbd9..c1020654876e 100644
--- a/arch/mips/include/asm/rtlx.h
+++ b/arch/mips/include/asm/rtlx.h
@@ -1,13 +1,18 @@
1/* 1/*
2 * Copyright (C) 2004, 2005 MIPS Technologies, Inc. All rights reserved. 2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
3 * 5 *
6 * Copyright (C) 2004, 2005 MIPS Technologies, Inc. All rights reserved.
7 * Copyright (C) 2013 Imagination Technologies Ltd.
4 */ 8 */
5
6#ifndef __ASM_RTLX_H_ 9#ifndef __ASM_RTLX_H_
7#define __ASM_RTLX_H_ 10#define __ASM_RTLX_H_
8 11
9#include <irq.h> 12#include <irq.h>
10 13
14#define RTLX_MODULE_NAME "rtlx"
15
11#define LX_NODE_BASE 10 16#define LX_NODE_BASE 10
12 17
13#define MIPS_CPU_RTLX_IRQ 0 18#define MIPS_CPU_RTLX_IRQ 0
@@ -15,18 +20,31 @@
15#define RTLX_VERSION 2 20#define RTLX_VERSION 2
16#define RTLX_xID 0x12345600 21#define RTLX_xID 0x12345600
17#define RTLX_ID (RTLX_xID | RTLX_VERSION) 22#define RTLX_ID (RTLX_xID | RTLX_VERSION)
23#define RTLX_BUFFER_SIZE 2048
18#define RTLX_CHANNELS 8 24#define RTLX_CHANNELS 8
19 25
20#define RTLX_CHANNEL_STDIO 0 26#define RTLX_CHANNEL_STDIO 0
21#define RTLX_CHANNEL_DBG 1 27#define RTLX_CHANNEL_DBG 1
22#define RTLX_CHANNEL_SYSIO 2 28#define RTLX_CHANNEL_SYSIO 2
23 29
24extern int rtlx_open(int index, int can_sleep); 30void rtlx_starting(int vpe);
25extern int rtlx_release(int index); 31void rtlx_stopping(int vpe);
26extern ssize_t rtlx_read(int index, void __user *buff, size_t count); 32
27extern ssize_t rtlx_write(int index, const void __user *buffer, size_t count); 33int rtlx_open(int index, int can_sleep);
28extern unsigned int rtlx_read_poll(int index, int can_sleep); 34int rtlx_release(int index);
29extern unsigned int rtlx_write_poll(int index); 35ssize_t rtlx_read(int index, void __user *buff, size_t count);
36ssize_t rtlx_write(int index, const void __user *buffer, size_t count);
37unsigned int rtlx_read_poll(int index, int can_sleep);
38unsigned int rtlx_write_poll(int index);
39
40int __init rtlx_module_init(void);
41void __exit rtlx_module_exit(void);
42
43void _interrupt_sp(void);
44
45extern struct vpe_notifications rtlx_notify;
46extern const struct file_operations rtlx_fops;
47extern void (*aprp_hook)(void);
30 48
31enum rtlx_state { 49enum rtlx_state {
32 RTLX_STATE_UNUSED = 0, 50 RTLX_STATE_UNUSED = 0,
@@ -35,10 +53,15 @@ enum rtlx_state {
35 RTLX_STATE_OPENED 53 RTLX_STATE_OPENED
36}; 54};
37 55
38#define RTLX_BUFFER_SIZE 2048 56extern struct chan_waitqueues {
57 wait_queue_head_t rt_queue;
58 wait_queue_head_t lx_queue;
59 atomic_t in_open;
60 struct mutex mutex;
61} channel_wqs[RTLX_CHANNELS];
39 62
40/* each channel supports read and write. 63/* each channel supports read and write.
41 linux (vpe0) reads lx_buffer and writes rt_buffer 64 linux (vpe0) reads lx_buffer and writes rt_buffer
42 SP (vpe1) reads rt_buffer and writes lx_buffer 65 SP (vpe1) reads rt_buffer and writes lx_buffer
43*/ 66*/
44struct rtlx_channel { 67struct rtlx_channel {
@@ -55,11 +78,11 @@ struct rtlx_channel {
55 char *lx_buffer; 78 char *lx_buffer;
56}; 79};
57 80
58struct rtlx_info { 81extern struct rtlx_info {
59 unsigned long id; 82 unsigned long id;
60 enum rtlx_state state; 83 enum rtlx_state state;
84 int ap_int_pending; /* Status of 0 or 1 for CONFIG_MIPS_CMP only */
61 85
62 struct rtlx_channel channel[RTLX_CHANNELS]; 86 struct rtlx_channel channel[RTLX_CHANNELS];
63}; 87} *rtlx;
64
65#endif /* __ASM_RTLX_H_ */ 88#endif /* __ASM_RTLX_H_ */