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synclink_gt: add serial bit order control

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Add control of hardware serial bit order between LSB first
(default/standard) and MSB first.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Fulghum 2008-07-22 11:21:39 +01:00 • committed by Linus Torvalds
parent 8a38c2851d
commit e5590717af
2 changed files with 3 additions and 0 deletions
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2
drivers/char/synclink_gt.c
View file

@ -4403,6 +4403,8 @@ static void msc_set_vcr(struct slgt_info *info)
break; break;
} }
if (info->if_mode & MGSL_INTERFACE_MSB_FIRST)
val |= BIT4;
if (info->signals & SerialSignal_DTR) if (info->signals & SerialSignal_DTR)
val |= BIT3; val |= BIT3;
if (info->signals & SerialSignal_RTS) if (info->signals & SerialSignal_RTS)

1
include/linux/synclink.h
View file

@ -136,6 +136,7 @@
#define MGSL_INTERFACE_RTS_EN 0x10 #define MGSL_INTERFACE_RTS_EN 0x10
#define MGSL_INTERFACE_LL 0x20 #define MGSL_INTERFACE_LL 0x20
#define MGSL_INTERFACE_RL 0x40 #define MGSL_INTERFACE_RL 0x40
#define MGSL_INTERFACE_MSB_FIRST 0x80
typedef struct _MGSL_PARAMS typedef struct _MGSL_PARAMS
{ {