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MIPS: APRP: Split RTLX support into separate files.

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Split the RTLX functionality in preparation for adding support for CMP
platforms. Common functions remain in the original file and a new file
contains code specific to platforms that do not have a CMP.

Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/6093/
Reviewed-by: John Crispin <blogic@openwrt.org>
This commit is contained in:
Deng-Cheng Zhu
2014-01-01 16:26:46 +01:00
committed by Ralf Baechle
parent 17a1d523aa
commit 2c973ef0cc
5 changed files with 195 additions and 144 deletions
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43
arch/mips/include/asm/rtlx.h
View File

@@ -1,6 +1,6 @@
/*
* Copyright (C) 2004, 2005 MIPS Technologies, Inc. All rights reserved.
*
* Copyright (C) 2013 Imagination Technologies Ltd.
*/
#ifndef __ASM_RTLX_H_
@@ -8,6 +8,8 @@
#include <irq.h>
#define RTLX_MODULE_NAME "rtlx"
#define LX_NODE_BASE 10
#define MIPS_CPU_RTLX_IRQ 0
@@ -15,18 +17,31 @@
#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
extern int rtlx_open(int index, int can_sleep);
extern int rtlx_release(int index);
extern ssize_t rtlx_read(int index, void __user *buff, size_t count);
extern ssize_t rtlx_write(int index, const void __user *buffer, size_t count);
extern unsigned int rtlx_read_poll(int index, int can_sleep);
extern unsigned int rtlx_write_poll(int index);
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,
@@ -35,10 +50,15 @@ enum rtlx_state {
RTLX_STATE_OPENED
};
#define RTLX_BUFFER_SIZE 2048
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
linux (vpe0) reads lx_buffer and writes rt_buffer
SP (vpe1) reads rt_buffer and writes lx_buffer
*/
struct rtlx_channel {
@@ -55,11 +75,10 @@ struct rtlx_channel {
char *lx_buffer;
};
struct rtlx_info {
extern struct rtlx_info {
unsigned long id;
enum rtlx_state state;
struct rtlx_channel channel[RTLX_CHANNELS];
};
} *rtlx;
#endif /* __ASM_RTLX_H_ */