Struct i2s_chan_info_t 

#[repr(C)]
pub struct i2s_chan_info_t {
    pub id: i2s_port_t,
    pub role: i2s_role_t,
    pub dir: i2s_dir_t,
    pub mode: i2s_comm_mode_t,
    pub is_enabled: bool,
    pub pair_chan: i2s_chan_handle_t,
    pub total_dma_buf_size: u32,
    pub clk_src: i2s_clock_src_t,
    pub sclk_hz: u32,
    pub mclk_hz: u32,
    pub bclk_hz: u32,
    pub mode_cfg: *const c_void,
}

@brief I2S channel information

Fields

id: i2s_port_t

< I2S port id

role: i2s_role_t

< I2S role, I2S_ROLE_MASTER or I2S_ROLE_SLAVE

dir: i2s_dir_t

< I2S channel direction

mode: i2s_comm_mode_t

< I2S channel communication mode

is_enabled: bool

< I2S channel is enabled or not

pair_chan: i2s_chan_handle_t

< I2S pair channel handle in duplex mode, always NULL in simplex mode

total_dma_buf_size: u32

< Total size of all the allocated DMA buffers

• 0 if the channel has not been initialized
• non-zero if the channel has been initialized

clk_src: i2s_clock_src_t

< Clock source of I2S

sclk_hz: u32

< Source clock frequency

mclk_hz: u32

< MCLK frequency

bclk_hz: u32

< BCLK frequency

mode_cfg: *const c_void

< Mode configuration, it need to be casted to the corresponding type according to the communication mode

• I2S_COMM_MODE_STD: i2s_std_config_t*
• I2S_COMM_MODE_TDM: i2s_tdm_config_t*
• I2S_COMM_MODE_PDM + I2S_DIR_RX: i2s_pdm_rx_config_t*
• I2S_COMM_MODE_PDM + I2S_DIR_TX: i2s_pdm_tx_config_t*

Trait Implementations

impl Clone for i2s_chan_info_t

fn clone(&self) -> i2s_chan_info_t

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for i2s_chan_info_t

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for i2s_chan_info_t

fn default() -> Self

Returns the “default value” for a type.

impl Copy for i2s_chan_info_t