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staging: comedi: ni_mio_common: move ni_stc_dma_channel_select_bitfield()

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Move this inline helper function from ni_stc.h. It does not need to be
exposed outside of this file.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2015-05-01 15:00:05 -07:00 • committed by Greg Kroah-Hartman
parent 7d6f3aaead
commit f78476b4d3
2 changed files with 11 additions and 12 deletions
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11
drivers/staging/comedi/drivers/ni_mio_common.c
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@ -567,6 +567,17 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg,
#ifdef PCIDMA
/* DMA channel setup */
static inline unsigned ni_stc_dma_channel_select_bitfield(unsigned channel)
{
if (channel < 4)
return 1 << channel;
if (channel == 4)
return 0x3;
if (channel == 5)
return 0x5;
BUG();
return 0;
}
/* negative channel means no channel */
static inline void ni_set_ai_dma_channel(struct comedi_device *dev, int channel)

12
drivers/staging/comedi/drivers/ni_stc.h
View file

@ -592,18 +592,6 @@
#define NI_E_MISC_CMD_EXT_ATRIG NI_E_MISC_CMD_INTEXT_ATRIG(0)
#define NI_E_MISC_CMD_INT_ATRIG NI_E_MISC_CMD_INTEXT_ATRIG(1)
static inline unsigned ni_stc_dma_channel_select_bitfield(unsigned channel)
{
if (channel < 4)
return 1 << channel;
if (channel == 4)
return 0x3;
if (channel == 5)
return 0x5;
BUG();
return 0;
}
#define NI_E_AI_CFG_LO_REG 0x10 /* w16 */
#define NI_E_AI_CFG_LO_LAST_CHAN BIT(15)
#define NI_E_AI_CFG_LO_GEN_TRIG BIT(12)