Change the parameters of `comedi_buf_memcpy_to()` to pass a pointer to
the comedi subdevice instead of a pointer to the "async" structure
belonging to the subdevice.
The main aim at the moment is to replace all the `struct comedi_async *`
parameters with `struct comedi_subdevice *` parameters in the comedi
driver API.
Signed-off-by: Ian Abbott <abbo...@mev.co.uk>
---
v2: rebased to current staging-next.
---
drivers/staging/comedi/comedi_buf.c | 3 ++-
drivers/staging/comedi/comedidev.h | 2 +-
drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c | 2 +-
drivers/staging/comedi/drivers/comedi_fc.c | 2 +-
4 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/comedi/comedi_buf.c
b/drivers/staging/comedi/comedi_buf.c
index acb042c..de850f3 100644
--- a/drivers/staging/comedi/comedi_buf.c
+++ b/drivers/staging/comedi/comedi_buf.c
@@ -445,9 +445,10 @@ int comedi_buf_get(struct comedi_subdevice *s, unsigned
short *x)
}
EXPORT_SYMBOL_GPL(comedi_buf_get);
-void comedi_buf_memcpy_to(struct comedi_async *async, unsigned int offset,
+void comedi_buf_memcpy_to(struct comedi_subdevice *s, unsigned int offset,
const void *data, unsigned int num_bytes)
{
+ struct comedi_async *async = s->async;
unsigned int write_ptr = async->buf_write_ptr + offset;
if (write_ptr >= async->prealloc_bufsz)
diff --git a/drivers/staging/comedi/comedidev.h
b/drivers/staging/comedi/comedidev.h
index d19a20c..221db71 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -346,7 +346,7 @@ unsigned int comedi_buf_read_free(struct comedi_async *,
unsigned int);
int comedi_buf_put(struct comedi_subdevice *s, unsigned short x);
int comedi_buf_get(struct comedi_subdevice *s, unsigned short *x);
-void comedi_buf_memcpy_to(struct comedi_async *async, unsigned int offset,
+void comedi_buf_memcpy_to(struct comedi_subdevice *s, unsigned int offset,
const void *source, unsigned int num_bytes);
void comedi_buf_memcpy_from(struct comedi_async *async, unsigned int offset,
void *destination, unsigned int num_bytes);
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
index 9b8851c..51095be 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
@@ -2712,7 +2712,7 @@ static int i_APCI3200_InterruptHandleEos(struct
comedi_device *dev)
s->async->events |= COMEDI_CB_ERROR;
}
/* Write all 7 scan values in the comedi buffer */
- comedi_buf_memcpy_to(s->async, 0,
+ comedi_buf_memcpy_to(s, 0,
(unsigned int *) s_BoardInfos[dev->minor].
ui_ScanValueArray, (7 + 12) * sizeof(unsigned
int));
diff --git a/drivers/staging/comedi/drivers/comedi_fc.c
b/drivers/staging/comedi/drivers/comedi_fc.c
index 9d9b146..81749a7 100644
--- a/drivers/staging/comedi/drivers/comedi_fc.c
+++ b/drivers/staging/comedi/drivers/comedi_fc.c
@@ -74,7 +74,7 @@ unsigned int cfc_write_array_to_buffer(struct
comedi_subdevice *s,
return 0;
}
- comedi_buf_memcpy_to(async, 0, data, num_bytes);
+ comedi_buf_memcpy_to(s, 0, data, num_bytes);
comedi_buf_write_free(async, num_bytes);
cfc_inc_scan_progress(s, num_bytes);
async->events |= COMEDI_CB_BLOCK;
--
1.9.2
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