Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
L
linux
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
Analytics
Analytics
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Commits
Issue Boards
Open sidebar
nexedi
linux
Commits
d743e951
Commit
d743e951
authored
Jun 09, 2002
by
Martin Dalecki
Committed by
Linus Torvalds
Jun 09, 2002
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
[PATCH] kill warnings 19/19
and now the final irda offender :-).
parent
d337d3ef
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
54 additions
and
56 deletions
+54
-56
net/irda/wrapper.c
net/irda/wrapper.c
+54
-56
No files found.
net/irda/wrapper.c
View file @
d743e951
/*********************************************************************
/*********************************************************************
*
*
* Filename: wrapper.c
* Filename: wrapper.c
* Version: 1.2
* Version: 1.2
* Description: IrDA SIR async wrapper layer
* Description: IrDA SIR async wrapper layer
...
@@ -10,17 +10,17 @@
...
@@ -10,17 +10,17 @@
* Modified by: Dag Brattli <dagb@cs.uit.no>
* Modified by: Dag Brattli <dagb@cs.uit.no>
* Modified at: Fri May 28 3:11 CST 1999
* Modified at: Fri May 28 3:11 CST 1999
* Modified by: Horst von Brand <vonbrand@sleipnir.valparaiso.cl>
* Modified by: Horst von Brand <vonbrand@sleipnir.valparaiso.cl>
*
*
* Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no>,
* Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no>,
* All Rights Reserved.
* All Rights Reserved.
*
*
* This program is free software; you can redistribute it and/or
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* the License, or (at your option) any later version.
*
*
* Neither Dag Brattli nor University of Troms admit liability nor
* Neither Dag Brattli nor University of Troms admit liability nor
* provide warranty for any of this software. This material is
* provide warranty for any of this software. This material is
* provided "AS-IS" and at no charge.
* provided "AS-IS" and at no charge.
*
*
********************************************************************/
********************************************************************/
...
@@ -39,22 +39,22 @@
...
@@ -39,22 +39,22 @@
static
inline
int
stuff_byte
(
__u8
byte
,
__u8
*
buf
);
static
inline
int
stuff_byte
(
__u8
byte
,
__u8
*
buf
);
static
void
state_outside_frame
(
struct
net_device
*
dev
,
static
void
state_outside_frame
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
);
iobuff_t
*
rx_buff
,
__u8
byte
);
static
void
state_begin_frame
(
struct
net_device
*
dev
,
static
void
state_begin_frame
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
);
iobuff_t
*
rx_buff
,
__u8
byte
);
static
void
state_link_escape
(
struct
net_device
*
dev
,
static
void
state_link_escape
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
);
iobuff_t
*
rx_buff
,
__u8
byte
);
static
void
state_inside_frame
(
struct
net_device
*
dev
,
static
void
state_inside_frame
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
);
iobuff_t
*
rx_buff
,
__u8
byte
);
static
void
(
*
state
[])(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
static
void
(
*
state
[])(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
)
=
iobuff_t
*
rx_buff
,
__u8
byte
)
=
{
{
state_outside_frame
,
state_outside_frame
,
state_begin_frame
,
state_begin_frame
,
state_link_escape
,
state_link_escape
,
...
@@ -64,14 +64,14 @@ static void (*state[])(struct net_device *dev, struct net_device_stats *stats,
...
@@ -64,14 +64,14 @@ static void (*state[])(struct net_device *dev, struct net_device_stats *stats,
/*
/*
* Function async_wrap (skb, *tx_buff, buffsize)
* Function async_wrap (skb, *tx_buff, buffsize)
*
*
* Makes a new buffer with wrapping and stuffing, should check that
* Makes a new buffer with wrapping and stuffing, should check that
* we don't get tx buffer overflow.
* we don't get tx buffer overflow.
*/
*/
int
async_wrap_skb
(
struct
sk_buff
*
skb
,
__u8
*
tx_buff
,
int
buffsize
)
int
async_wrap_skb
(
struct
sk_buff
*
skb
,
__u8
*
tx_buff
,
int
buffsize
)
{
{
struct
irda_skb_cb
*
cb
=
(
struct
irda_skb_cb
*
)
skb
->
cb
;
struct
irda_skb_cb
*
cb
=
(
struct
irda_skb_cb
*
)
skb
->
cb
;
int
xbofs
;
int
xbofs
;
int
i
;
int
i
;
int
n
;
int
n
;
union
{
union
{
__u16
value
;
__u16
value
;
...
@@ -86,11 +86,11 @@ int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize)
...
@@ -86,11 +86,11 @@ int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize)
* Send XBOF's for required min. turn time and for the negotiated
* Send XBOF's for required min. turn time and for the negotiated
* additional XBOFS
* additional XBOFS
*/
*/
if
(
cb
->
magic
!=
LAP_MAGIC
)
{
if
(
cb
->
magic
!=
LAP_MAGIC
)
{
/*
/*
* This will happen for all frames sent from user-space.
* This will happen for all frames sent from user-space.
* Nothing to worry about, but we set the default number of
* Nothing to worry about, but we set the default number of
* BOF's
* BOF's
*/
*/
IRDA_DEBUG
(
1
,
__FUNCTION__
"(), wrong magic in skb!
\n
"
);
IRDA_DEBUG
(
1
,
__FUNCTION__
"(), wrong magic in skb!
\n
"
);
...
@@ -116,7 +116,7 @@ int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize)
...
@@ -116,7 +116,7 @@ int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize)
for
(
i
=
0
;
i
<
skb
->
len
;
i
++
)
{
for
(
i
=
0
;
i
<
skb
->
len
;
i
++
)
{
/*
/*
* Check for the possibility of tx buffer overflow. We use
* Check for the possibility of tx buffer overflow. We use
* bufsize-5 since the maximum number of bytes that can be
* bufsize-5 since the maximum number of bytes that can be
* transmitted after this point is 5.
* transmitted after this point is 5.
*/
*/
ASSERT
(
n
<
(
buffsize
-
5
),
return
n
;);
ASSERT
(
n
<
(
buffsize
-
5
),
return
n
;);
...
@@ -124,7 +124,7 @@ int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize)
...
@@ -124,7 +124,7 @@ int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize)
n
+=
stuff_byte
(
skb
->
data
[
i
],
tx_buff
+
n
);
n
+=
stuff_byte
(
skb
->
data
[
i
],
tx_buff
+
n
);
fcs
.
value
=
irda_fcs
(
fcs
.
value
,
skb
->
data
[
i
]);
fcs
.
value
=
irda_fcs
(
fcs
.
value
,
skb
->
data
[
i
]);
}
}
/* Insert CRC in little endian format (LSB first) */
/* Insert CRC in little endian format (LSB first) */
fcs
.
value
=
~
fcs
.
value
;
fcs
.
value
=
~
fcs
.
value
;
#ifdef __LITTLE_ENDIAN
#ifdef __LITTLE_ENDIAN
...
@@ -144,9 +144,9 @@ int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize)
...
@@ -144,9 +144,9 @@ int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize)
*
*
* Byte stuff one single byte and put the result in buffer pointed to by
* Byte stuff one single byte and put the result in buffer pointed to by
* buf. The buffer must at all times be able to have two bytes inserted.
* buf. The buffer must at all times be able to have two bytes inserted.
*
*
*/
*/
static
inline
int
stuff_byte
(
__u8
byte
,
__u8
*
buf
)
static
inline
int
stuff_byte
(
__u8
byte
,
__u8
*
buf
)
{
{
switch
(
byte
)
{
switch
(
byte
)
{
case
BOF
:
/* FALLTHROUGH */
case
BOF
:
/* FALLTHROUGH */
...
@@ -174,7 +174,7 @@ static inline int stuff_byte(__u8 byte, __u8 *buf)
...
@@ -174,7 +174,7 @@ static inline int stuff_byte(__u8 byte, __u8 *buf)
inline
void
async_bump
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
inline
void
async_bump
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
__u8
*
buf
,
int
len
)
__u8
*
buf
,
int
len
)
{
{
struct
sk_buff
*
skb
;
struct
sk_buff
*
skb
;
skb
=
dev_alloc_skb
(
len
+
1
);
skb
=
dev_alloc_skb
(
len
+
1
);
if
(
!
skb
)
{
if
(
!
skb
)
{
...
@@ -184,10 +184,10 @@ inline void async_bump(struct net_device *dev, struct net_device_stats *stats,
...
@@ -184,10 +184,10 @@ inline void async_bump(struct net_device *dev, struct net_device_stats *stats,
/* Align IP header to 20 bytes */
/* Align IP header to 20 bytes */
skb_reserve
(
skb
,
1
);
skb_reserve
(
skb
,
1
);
/* Copy data without CRC */
/* Copy data without CRC */
memcpy
(
skb_put
(
skb
,
len
-
2
),
buf
,
len
-
2
);
memcpy
(
skb_put
(
skb
,
len
-
2
),
buf
,
len
-
2
);
/* Feed it to IrLAP layer */
/* Feed it to IrLAP layer */
skb
->
dev
=
dev
;
skb
->
dev
=
dev
;
skb
->
mac
.
raw
=
skb
->
data
;
skb
->
mac
.
raw
=
skb
->
data
;
...
@@ -196,7 +196,7 @@ inline void async_bump(struct net_device *dev, struct net_device_stats *stats,
...
@@ -196,7 +196,7 @@ inline void async_bump(struct net_device *dev, struct net_device_stats *stats,
netif_rx
(
skb
);
netif_rx
(
skb
);
stats
->
rx_packets
++
;
stats
->
rx_packets
++
;
stats
->
rx_bytes
+=
len
;
stats
->
rx_bytes
+=
len
;
}
}
/*
/*
...
@@ -205,21 +205,21 @@ inline void async_bump(struct net_device *dev, struct net_device_stats *stats,
...
@@ -205,21 +205,21 @@ inline void async_bump(struct net_device *dev, struct net_device_stats *stats,
* Parse and de-stuff frame received from the IrDA-port
* Parse and de-stuff frame received from the IrDA-port
*
*
*/
*/
inline
void
async_unwrap_char
(
struct
net_device
*
dev
,
inline
void
async_unwrap_char
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
)
iobuff_t
*
rx_buff
,
__u8
byte
)
{
{
(
*
state
[
rx_buff
->
state
])(
dev
,
stats
,
rx_buff
,
byte
);
(
*
state
[
rx_buff
->
state
])(
dev
,
stats
,
rx_buff
,
byte
);
}
}
/*
/*
* Function state_outside_frame (dev, rx_buff, byte)
* Function state_outside_frame (dev, rx_buff, byte)
*
*
* Not receiving any frame (or just bogus data)
* Not receiving any frame (or just bogus data)
*
*
*/
*/
static
void
state_outside_frame
(
struct
net_device
*
dev
,
static
void
state_outside_frame
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
)
iobuff_t
*
rx_buff
,
__u8
byte
)
{
{
switch
(
byte
)
{
switch
(
byte
)
{
...
@@ -245,8 +245,8 @@ static void state_outside_frame(struct net_device *dev,
...
@@ -245,8 +245,8 @@ static void state_outside_frame(struct net_device *dev,
* Begin of frame detected
* Begin of frame detected
*
*
*/
*/
static
void
state_begin_frame
(
struct
net_device
*
dev
,
static
void
state_begin_frame
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
)
iobuff_t
*
rx_buff
,
__u8
byte
)
{
{
/* Time to initialize receive buffer */
/* Time to initialize receive buffer */
...
@@ -283,27 +283,27 @@ static void state_begin_frame(struct net_device *dev,
...
@@ -283,27 +283,27 @@ static void state_begin_frame(struct net_device *dev,
* Found link escape character
* Found link escape character
*
*
*/
*/
static
void
state_link_escape
(
struct
net_device
*
dev
,
static
void
state_link_escape
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
)
iobuff_t
*
rx_buff
,
__u8
byte
)
{
{
switch
(
byte
)
{
switch
(
byte
)
{
case
BOF
:
/* New frame? */
case
BOF
:
/* New frame? */
IRDA_DEBUG
(
1
,
__FUNCTION__
IRDA_DEBUG
(
1
,
__FUNCTION__
"(), Discarding incomplete frame
\n
"
);
"(), Discarding incomplete frame
\n
"
);
rx_buff
->
state
=
BEGIN_FRAME
;
rx_buff
->
state
=
BEGIN_FRAME
;
irda_device_set_media_busy
(
dev
,
TRUE
);
irda_device_set_media_busy
(
dev
,
TRUE
);
break
;
break
;
case
CE
:
case
CE
:
WARNING
(
__FUNCTION__
"(), state not defined
\n
"
);
WARNING
(
"%s: state not defined
\n
"
,
__FUNCTION__
);
break
;
break
;
case
EOF
:
/* Abort frame */
case
EOF
:
/* Abort frame */
rx_buff
->
state
=
OUTSIDE_FRAME
;
rx_buff
->
state
=
OUTSIDE_FRAME
;
break
;
break
;
default:
default:
/*
/*
* Stuffed char, complement bit 5 of byte
* Stuffed char, complement bit 5 of byte
* following CE, IrLAP p.114
* following CE, IrLAP p.114
*/
*/
byte
^=
IRDA_TRANS
;
byte
^=
IRDA_TRANS
;
if
(
rx_buff
->
len
<
rx_buff
->
truesize
)
{
if
(
rx_buff
->
len
<
rx_buff
->
truesize
)
{
...
@@ -324,15 +324,15 @@ static void state_link_escape(struct net_device *dev,
...
@@ -324,15 +324,15 @@ static void state_link_escape(struct net_device *dev,
* Handle bytes received within a frame
* Handle bytes received within a frame
*
*
*/
*/
static
void
state_inside_frame
(
struct
net_device
*
dev
,
static
void
state_inside_frame
(
struct
net_device
*
dev
,
struct
net_device_stats
*
stats
,
struct
net_device_stats
*
stats
,
iobuff_t
*
rx_buff
,
__u8
byte
)
iobuff_t
*
rx_buff
,
__u8
byte
)
{
{
int
ret
=
0
;
int
ret
=
0
;
switch
(
byte
)
{
switch
(
byte
)
{
case
BOF
:
/* New frame? */
case
BOF
:
/* New frame? */
IRDA_DEBUG
(
1
,
__FUNCTION__
IRDA_DEBUG
(
1
,
__FUNCTION__
"(), Discarding incomplete frame
\n
"
);
"(), Discarding incomplete frame
\n
"
);
rx_buff
->
state
=
BEGIN_FRAME
;
rx_buff
->
state
=
BEGIN_FRAME
;
irda_device_set_media_busy
(
dev
,
TRUE
);
irda_device_set_media_busy
(
dev
,
TRUE
);
...
@@ -343,7 +343,7 @@ static void state_inside_frame(struct net_device *dev,
...
@@ -343,7 +343,7 @@ static void state_inside_frame(struct net_device *dev,
case
EOF
:
/* End of frame */
case
EOF
:
/* End of frame */
rx_buff
->
state
=
OUTSIDE_FRAME
;
rx_buff
->
state
=
OUTSIDE_FRAME
;
rx_buff
->
in_frame
=
FALSE
;
rx_buff
->
in_frame
=
FALSE
;
/* Test FCS and signal success if the frame is good */
/* Test FCS and signal success if the frame is good */
if
(
rx_buff
->
fcs
==
GOOD_FCS
)
{
if
(
rx_buff
->
fcs
==
GOOD_FCS
)
{
/* Deliver frame */
/* Deliver frame */
...
@@ -352,24 +352,22 @@ static void state_inside_frame(struct net_device *dev,
...
@@ -352,24 +352,22 @@ static void state_inside_frame(struct net_device *dev,
break
;
break
;
}
else
{
}
else
{
/* Wrong CRC, discard frame! */
/* Wrong CRC, discard frame! */
irda_device_set_media_busy
(
dev
,
TRUE
);
irda_device_set_media_busy
(
dev
,
TRUE
);
IRDA_DEBUG
(
1
,
__FUNCTION__
"(), crc error
\n
"
);
IRDA_DEBUG
(
1
,
__FUNCTION__
"(), crc error
\n
"
);
stats
->
rx_errors
++
;
stats
->
rx_errors
++
;
stats
->
rx_crc_errors
++
;
stats
->
rx_crc_errors
++
;
}
}
break
;
break
;
default:
/* Must be the next byte of the frame */
default:
/* Must be the next byte of the frame */
if
(
rx_buff
->
len
<
rx_buff
->
truesize
)
{
if
(
rx_buff
->
len
<
rx_buff
->
truesize
)
{
rx_buff
->
data
[
rx_buff
->
len
++
]
=
byte
;
rx_buff
->
data
[
rx_buff
->
len
++
]
=
byte
;
rx_buff
->
fcs
=
irda_fcs
(
rx_buff
->
fcs
,
byte
);
rx_buff
->
fcs
=
irda_fcs
(
rx_buff
->
fcs
,
byte
);
}
else
{
}
else
{
IRDA_DEBUG
(
1
,
__FUNCTION__
IRDA_DEBUG
(
1
,
__FUNCTION__
"(), Rx buffer overflow, aborting
\n
"
);
"(), Rx buffer overflow, aborting
\n
"
);
rx_buff
->
state
=
OUTSIDE_FRAME
;
rx_buff
->
state
=
OUTSIDE_FRAME
;
}
}
break
;
break
;
}
}
}
}
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment