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V4L/DVB (13718): [Mantis] Use gpio_set_bits to turn OFF the bits as well

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Signed-off-by: Marko Ristola <marko.ristola@kolumbus.fi>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Marko Ristola 2009-12-04 04:35:35 -03:00 committed by Mauro Carvalho Chehab
parent 77557abef0
commit f8e26cdec5
1 changed files with 7 additions and 9 deletions
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16
drivers/media/dvb/mantis/mantis_core.c
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@ -172,25 +172,23 @@ int mantis_core_exit(struct mantis_pci *mantis)
return 0; return 0;
} }
// Turn the given bit on or off.
void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value) void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
{ {
u32 reg; u32 currVal, newVal;
currVal = mmread(MANTIS_GPIF_ADDR);
if (value) if (value)
reg = 0x0000; newVal = currVal | (1 << bitpos);
else else
reg = 0xffff; newVal = currVal & (~(1 << bitpos));
reg = (value << bitpos); mmwrite(newVal, MANTIS_GPIF_ADDR);
mmwrite(mmread(MANTIS_GPIF_ADDR) | reg, MANTIS_GPIF_ADDR);
mmwrite(0x00, MANTIS_GPIF_DOUT); mmwrite(0x00, MANTIS_GPIF_DOUT);
udelay(100); udelay(100);
mmwrite(mmread(MANTIS_GPIF_ADDR) | reg, MANTIS_GPIF_ADDR);
mmwrite(0x00, MANTIS_GPIF_DOUT);
} }
//direction = 0 , no CI passthrough ; 1 , CI passthrough //direction = 0 , no CI passthrough ; 1 , CI passthrough
void mantis_set_direction(struct mantis_pci *mantis, int direction) void mantis_set_direction(struct mantis_pci *mantis, int direction)
{ {