AW88261_I2S_TX_SLOTVLD_START_BIT
aw88261->tx_slotvld_mask = 0 << AW88261_I2S_TX_SLOTVLD_START_BIT;
aw88261->tx_slotvld_mask = chan << AW88261_I2S_TX_SLOTVLD_START_BIT;
(~(((1<<AW88261_I2S_TX_SLOTVLD_BITS_LEN)-1) << AW88261_I2S_TX_SLOTVLD_START_BIT))