I2C_SL_IRQ
const unsigned long irq_mask = I2C_SL_IRQ | END_TRANS | RCVD | RNW;
if ((status & I2C_SL_IRQ) == 0) {
if (status == (I2C_SL_IRQ | RCVD))
if (status != (I2C_SL_IRQ | RCVD))
if (status != I2C_SL_IRQ) {
if (status == (I2C_SL_IRQ | RNW | RCVD)) {
} else if (status == (I2C_SL_IRQ)) {
if (status == (I2C_SL_IRQ | RNW | RCVD))