Both ioctl commands destroyed the control register by writing the
content of the status register into it.
---
c/src/lib/libbsp/sparc/shared/spw/grspw.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw.c
b/c/src/lib/libbsp/sparc/shared/spw/grspw.c
index b6ee255..5cedcb9 100644
--- a/c/src/lib/libbsp/sparc/shared/spw/grspw.c
+++ b/c/src/lib/libbsp/sparc/shared/spw/grspw.c
@@ -1138,7 +1138,7 @@ static rtems_device_driver grspw_control(
if ((unsigned int)ioarg->buffer > 1) {
return RTEMS_INVALID_NAME;
}
- SPW_CTRL_WRITE(pDev, (SPW_STATUS_READ(pDev) &
0xFFFEFFFF) | ((unsigned int)ioarg->buffer << 16));
+ SPW_CTRL_WRITE(pDev, (SPW_CTRL_READ(pDev) & 0xFFFEFFFF)
| ((unsigned int)ioarg->buffer << 16));
if (((SPW_CTRL_READ(pDev) >> 16) & 1) != (unsigned
int)ioarg->buffer) {
return RTEMS_IO_ERROR;
}
@@ -1149,7 +1149,7 @@ static rtems_device_driver grspw_control(
if ((unsigned int)ioarg->buffer > 1) {
return RTEMS_INVALID_NAME;
}
- SPW_CTRL_WRITE(pDev, (SPW_STATUS_READ(pDev) &
0xFFFDFFFF) | ((unsigned int)ioarg->buffer << 17));
+ SPW_CTRL_WRITE(pDev, (SPW_CTRL_READ(pDev) & 0xFFFDFFFF)
| ((unsigned int)ioarg->buffer << 17));
if (((SPW_CTRL_READ(pDev) >> 17) & 1) != (unsigned
int)ioarg->buffer) {
return RTEMS_IO_ERROR;
}
--
1.7.0.4
_______________________________________________
devel mailing list
devel@rtems.org
http://lists.rtems.org/mailman/listinfo/devel
