diff options
Diffstat (limited to 'drivers/media')
| -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 d159ad6fc321..16d693eeb29e 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) { |