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SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_channel_obj_t::state

i2s_channel_obj_t::state field

i2s driver state. Ensuring the driver working in a correct sequence

Syntax

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Summary

Declaration

from i2s_private.h:158

i2s_state_t state;

References

Code

Location

Referrer

i2s_state_t state; /*!< i2s driver state. Ensuring the driver working in a correct sequence */

i2s_private.h:158

new_chan->state = I2S_CHAN_STATE_REGISTER;

i2s_common.c:325

i2s_register_channel()

ESP_GOTO_ON_FALSE(handle->state < I2S_CHAN_STATE_RUNNING, ESP_ERR_INVALID_STATE, err, TAG, "invalid state, I2S has enabled");

i2s_common.c:409

i2s_channel_register_event_callback()

ESP_RETURN_ON_FALSE(handle->state < I2S_CHAN_STATE_RUNNING, ESP_ERR_INVALID_STATE, TAG, "the channel can't be deleted unless it is disabled");

i2s_common.c:1029

i2s_del_channel()

chan_info->total_dma_buf_size = handle->state >= I2S_CHAN_STATE_READY ? handle->dma.desc_num * handle->dma.buf_size : 0;

i2s_common.c:1143

i2s_channel_get_info()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "the channel has already enabled or not initialized");

i2s_common.c:1165

i2s_channel_enable()

handle->state = I2S_CHAN_STATE_RUNNING;

i2s_common.c:1170

i2s_channel_enable()

ESP_GOTO_ON_FALSE(handle->state > I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "the channel has not been enabled yet");

i2s_common.c:1191

i2s_channel_disable()

handle->state = I2S_CHAN_STATE_READY;

i2s_common.c:1193

i2s_channel_disable()

ESP_RETURN_ON_FALSE(tx_handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, TAG, "data can only be preloaded when the channel is READY");

i2s_common.c:1219

i2s_channel_preload_data()

while (size > 0 && handle->state == I2S_CHAN_STATE_RUNNING) {

i2s_common.c:1288

i2s_channel_write()

while (size > 0 && handle->state == I2S_CHAN_STATE_RUNNING) {

i2s_common.c:1333

i2s_channel_read()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_REGISTER, ESP_ERR_INVALID_STATE, err, TAG, "the channel has initialized already");

i2s_channel_init_pdm_tx_mode()

handle->state = I2S_CHAN_STATE_READY;

i2s_channel_init_pdm_tx_mode()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "invalid state, I2S should be disabled before reconfiguring the clock");

i2s_channel_reconfig_pdm_tx_clock()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "invalid state, I2S should be disabled before reconfiguring the slot");

i2s_channel_reconfig_pdm_tx_slot()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "Invalid state, I2S should be disabled before reconfiguring the gpio");

i2s_channel_reconfig_pdm_tx_gpio()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_REGISTER, ESP_ERR_INVALID_STATE, err, TAG, "the channel has initialized already");

i2s_channel_init_pdm_rx_mode()

handle->state = I2S_CHAN_STATE_READY;

i2s_channel_init_pdm_rx_mode()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "invalid state, I2S should be disabled before reconfiguring the clock");

i2s_channel_reconfig_pdm_rx_clock()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "invalid state, I2S should be disabled before reconfiguring the slot");

i2s_channel_reconfig_pdm_rx_slot()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "Invalid state, I2S should be disabled before reconfiguring the gpio");

i2s_channel_reconfig_pdm_rx_gpio()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_REGISTER, ESP_ERR_INVALID_STATE, err, TAG, "the channel has initialized already");

i2s_channel_init_std_mode()

handle->state = I2S_CHAN_STATE_READY;

i2s_channel_init_std_mode()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "invalid state, I2S should be disabled before reconfiguring the clock");

i2s_channel_reconfig_std_clock()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "invalid state, I2S should be disabled before reconfiguring the slot");

i2s_channel_reconfig_std_slot()

ESP_GOTO_ON_FALSE(handle->state == I2S_CHAN_STATE_READY, ESP_ERR_INVALID_STATE, err, TAG, "Invalid state, I2S should be disabled before reconfiguring the gpio");

i2s_channel_reconfig_std_gpio()

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Data Use

i2s_channel_obj_t::state is written by 6 functions and is read by 20 functions:

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