staging: comedi: ni_at_ao: using the BIT(x) macro

#define ATAO_CFG2_REG		0x02

#define ATAO_CFG2_CALLD_NOP	(0 << 14)

#define ATAO_CFG2_CALLD(x)	((((x) >> 3) + 1) << 14)

#define ATAO_CFG2_FFRTEN	(1 << 13)

#define ATAO_CFG2_FFRTEN	BIT(13)

#define ATAO_CFG2_DACS(x)	(1 << (((x) / 2) + 8))

#define ATAO_CFG2_LDAC(x)	(1 << (((x) / 2) + 3))

#define ATAO_CFG2_PROMEN	(1 << 2)

#define ATAO_CFG2_SCLK		(1 << 1)

#define ATAO_CFG2_SDATA		(1 << 0)

#define ATAO_CFG2_PROMEN	BIT(2)

#define ATAO_CFG2_SCLK		BIT(1)

#define ATAO_CFG2_SDATA		BIT(0)

#define ATAO_CFG3_REG		0x04

#define ATAO_CFG3_DMAMODE	(1 << 6)

#define ATAO_CFG3_CLKOUT	(1 << 5)

#define ATAO_CFG3_RCLKEN	(1 << 4)

#define ATAO_CFG3_DOUTEN2	(1 << 3)

#define ATAO_CFG3_DOUTEN1	(1 << 2)

#define ATAO_CFG3_EN2_5V	(1 << 1)

#define ATAO_CFG3_SCANEN	(1 << 0)

#define ATAO_CFG3_DMAMODE	BIT(6)

#define ATAO_CFG3_CLKOUT	BIT(5)

#define ATAO_CFG3_RCLKEN	BIT(4)

#define ATAO_CFG3_DOUTEN2	BIT(3)

#define ATAO_CFG3_DOUTEN1	BIT(2)

#define ATAO_CFG3_EN2_5V	BIT(1)

#define ATAO_CFG3_SCANEN	BIT(0)

#define ATAO_82C53_BASE		0x06

#define ATAO_CFG1_REG		0x0a

#define ATAO_CFG1_EXTINT2EN	(1 << 15)

#define ATAO_CFG1_EXTINT1EN	(1 << 14)

#define ATAO_CFG1_CNTINT2EN	(1 << 13)

#define ATAO_CFG1_CNTINT1EN	(1 << 12)

#define ATAO_CFG1_TCINTEN	(1 << 11)

#define ATAO_CFG1_CNT1SRC	(1 << 10)

#define ATAO_CFG1_CNT2SRC	(1 << 9)

#define ATAO_CFG1_FIFOEN	(1 << 8)

#define ATAO_CFG1_GRP2WR	(1 << 7)

#define ATAO_CFG1_EXTUPDEN	(1 << 6)

#define ATAO_CFG1_DMARQ		(1 << 5)

#define ATAO_CFG1_DMAEN		(1 << 4)

#define ATAO_CFG1_EXTINT2EN	BIT(15)

#define ATAO_CFG1_EXTINT1EN	BIT(14)

#define ATAO_CFG1_CNTINT2EN	BIT(13)

#define ATAO_CFG1_CNTINT1EN	BIT(12)

#define ATAO_CFG1_TCINTEN	BIT(11)

#define ATAO_CFG1_CNT1SRC	BIT(10)

#define ATAO_CFG1_CNT2SRC	BIT(9)

#define ATAO_CFG1_FIFOEN	BIT(8)

#define ATAO_CFG1_GRP2WR	BIT(7)

#define ATAO_CFG1_EXTUPDEN	BIT(6)

#define ATAO_CFG1_DMARQ		BIT(5)

#define ATAO_CFG1_DMAEN		BIT(4)

#define ATAO_CFG1_CH(x)		(((x) & 0xf) << 0)

#define ATAO_STATUS_REG		0x0a

#define ATAO_STATUS_FH		(1 << 6)

#define ATAO_STATUS_FE		(1 << 5)

#define ATAO_STATUS_FF		(1 << 4)

#define ATAO_STATUS_INT2	(1 << 3)

#define ATAO_STATUS_INT1	(1 << 2)

#define ATAO_STATUS_TCINT	(1 << 1)

#define ATAO_STATUS_PROMOUT	(1 << 0)

#define ATAO_STATUS_FH		BIT(6)

#define ATAO_STATUS_FE		BIT(5)

#define ATAO_STATUS_FF		BIT(4)

#define ATAO_STATUS_INT2	BIT(3)

#define ATAO_STATUS_INT1	BIT(2)

#define ATAO_STATUS_TCINT	BIT(1)

#define ATAO_STATUS_PROMOUT	BIT(0)

#define ATAO_FIFO_WRITE_REG	0x0c

#define ATAO_FIFO_CLEAR_REG	0x0c

#define ATAO_AO_REG(x)		(0x0c + ((x) * 2))

#define ATAO_2_INT1CLR_REG	0x02

#define ATAO_2_INT2CLR_REG	0x04

#define ATAO_2_RTSISHFT_REG	0x06

#define ATAO_2_RTSISHFT_RSI	(1 << 0)

#define ATAO_2_RTSISHFT_RSI	BIT(0)

#define ATAO_2_RTSISTRB_REG	0x07

struct atao_board {