diff options
| author | Marko Ristola <marko.ristola@kolumbus.fi> | 2009-12-04 04:35:35 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-01-17 11:55:30 -0200 |
| commit | f8e26cdec5ac25ae8d73e278e21033292de5430b (patch) | |
| tree | 3e8255b12283da67776fd2bcfca00c4c0aadfe57 /drivers | |
| parent | 77557abef0de3f1f1e8f563db6df8710a9e930fe (diff) | |
V4L/DVB (13718): [Mantis] Use gpio_set_bits to turn OFF the bits as well
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/dvb/mantis/mantis_core.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/media/dvb/mantis/mantis_core.c b/drivers/media/dvb/mantis/mantis_core.c index d159ad6fc32..16d693eeb29 100644 --- a/drivers/media/dvb/mantis/mantis_core.c +++ b/drivers/media/dvb/mantis/mantis_core.c @@ -172,25 +172,23 @@ int mantis_core_exit(struct mantis_pci *mantis) return 0; } +// Turn the given bit on or off. void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value) { - u32 reg; + u32 currVal, newVal; + + currVal = mmread(MANTIS_GPIF_ADDR); if (value) - reg = 0x0000; + newVal = currVal | (1 << bitpos); else - reg = 0xffff; - - reg = (value << bitpos); + newVal = currVal & (~(1 << bitpos)); - mmwrite(mmread(MANTIS_GPIF_ADDR) | reg, MANTIS_GPIF_ADDR); + mmwrite(newVal, MANTIS_GPIF_ADDR); mmwrite(0x00, MANTIS_GPIF_DOUT); udelay(100); - mmwrite(mmread(MANTIS_GPIF_ADDR) | reg, MANTIS_GPIF_ADDR); - mmwrite(0x00, MANTIS_GPIF_DOUT); } - //direction = 0 , no CI passthrough ; 1 , CI passthrough void mantis_set_direction(struct mantis_pci *mantis, int direction) { |