-#define ME4000_AI_CTRL_BIT_MODE_0 (1 << 0)
-#define ME4000_AI_CTRL_BIT_MODE_1 (1 << 1)
-#define ME4000_AI_CTRL_BIT_MODE_2 (1 << 2)
-#define ME4000_AI_CTRL_BIT_SAMPLE_HOLD (1 << 3)
-#define ME4000_AI_CTRL_BIT_IMMEDIATE_STOP (1 << 4)
-#define ME4000_AI_CTRL_BIT_STOP (1 << 5)
-#define ME4000_AI_CTRL_BIT_CHANNEL_FIFO (1 << 6)
-#define ME4000_AI_CTRL_BIT_DATA_FIFO (1 << 7)
-#define ME4000_AI_CTRL_BIT_FULLSCALE (1 << 8)
-#define ME4000_AI_CTRL_BIT_OFFSET (1 << 9)
-#define ME4000_AI_CTRL_BIT_EX_TRIG_ANALOG (1 << 10)
-#define ME4000_AI_CTRL_BIT_EX_TRIG (1 << 11)
-#define ME4000_AI_CTRL_BIT_EX_TRIG_FALLING (1 << 12)
-#define ME4000_AI_CTRL_BIT_EX_IRQ (1 << 13)
-#define ME4000_AI_CTRL_BIT_EX_IRQ_RESET (1 << 14)
-#define ME4000_AI_CTRL_BIT_LE_IRQ (1 << 15)
-#define ME4000_AI_CTRL_BIT_LE_IRQ_RESET (1 << 16)
-#define ME4000_AI_CTRL_BIT_HF_IRQ (1 << 17)
-#define ME4000_AI_CTRL_BIT_HF_IRQ_RESET (1 << 18)
-#define ME4000_AI_CTRL_BIT_SC_IRQ (1 << 19)
-#define ME4000_AI_CTRL_BIT_SC_IRQ_RESET (1 << 20)
-#define ME4000_AI_CTRL_BIT_SC_RELOAD (1 << 21)
-#define ME4000_AI_STATUS_BIT_EF_CHANNEL (1 << 22)
-#define ME4000_AI_STATUS_BIT_HF_CHANNEL (1 << 23)
-#define ME4000_AI_STATUS_BIT_FF_CHANNEL (1 << 24)
-#define ME4000_AI_STATUS_BIT_EF_DATA (1 << 25)
-#define ME4000_AI_STATUS_BIT_HF_DATA (1 << 26)
-#define ME4000_AI_STATUS_BIT_FF_DATA (1 << 27)
-#define ME4000_AI_STATUS_BIT_LE (1 << 28)
-#define ME4000_AI_STATUS_BIT_FSM (1 << 29)
-#define ME4000_AI_CTRL_BIT_EX_TRIG_BOTH (1 << 31)
+#define ME4000_AI_CTRL_MODE_0 BIT(0)
+#define ME4000_AI_CTRL_MODE_1 BIT(1)
+#define ME4000_AI_CTRL_MODE_2 BIT(2)
+#define ME4000_AI_CTRL_SAMPLE_HOLD BIT(3)
+#define ME4000_AI_CTRL_IMMEDIATE_STOP BIT(4)
+#define ME4000_AI_CTRL_STOP BIT(5)
+#define ME4000_AI_CTRL_CHANNEL_FIFO BIT(6)
+#define ME4000_AI_CTRL_DATA_FIFO BIT(7)
+#define ME4000_AI_CTRL_FULLSCALE BIT(8)
+#define ME4000_AI_CTRL_OFFSET BIT(9)
+#define ME4000_AI_CTRL_EX_TRIG_ANALOG BIT(10)
+#define ME4000_AI_CTRL_EX_TRIG BIT(11)
+#define ME4000_AI_CTRL_EX_TRIG_FALLING BIT(12)
+#define ME4000_AI_CTRL_EX_IRQ BIT(13)
+#define ME4000_AI_CTRL_EX_IRQ_RESET BIT(14)
+#define ME4000_AI_CTRL_LE_IRQ BIT(15)
+#define ME4000_AI_CTRL_LE_IRQ_RESET BIT(16)
+#define ME4000_AI_CTRL_HF_IRQ BIT(17)
+#define ME4000_AI_CTRL_HF_IRQ_RESET BIT(18)
+#define ME4000_AI_CTRL_SC_IRQ BIT(19)
+#define ME4000_AI_CTRL_SC_IRQ_RESET BIT(20)
+#define ME4000_AI_CTRL_SC_RELOAD BIT(21)
+#define ME4000_AI_STATUS_EF_CHANNEL BIT(22)
+#define ME4000_AI_STATUS_HF_CHANNEL BIT(23)
+#define ME4000_AI_STATUS_FF_CHANNEL BIT(24)
+#define ME4000_AI_STATUS_EF_DATA BIT(25)
+#define ME4000_AI_STATUS_HF_DATA BIT(26)
+#define ME4000_AI_STATUS_FF_DATA BIT(27)
+#define ME4000_AI_STATUS_LE BIT(28)
+#define ME4000_AI_STATUS_FSM BIT(29)
+#define ME4000_AI_CTRL_EX_TRIG_BOTH BIT(31)