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SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_register_channel()

i2s_register_channel() function

Syntax

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Summary

Declaration

from i2s_common.c:314

static esp_err_t i2s_register_channel(i2s_controller_t *i2s_obj, i2s_dir_t dir, uint32_t desc_num);

Arguments

Argument

Declared as

i2s_obj

i2s_controller_t *

dir

desc_num

uint32_t

References

Code

Location

Referrer

static esp_err_t i2s_register_channel(i2s_controller_t *i2s_obj, i2s_dir_t dir, uint32_t desc_num)

i2s_common.c:314

ESP_GOTO_ON_ERROR(i2s_register_channel(i2s_obj, I2S_DIR_TX, chan_cfg->dma_desc_num),

i2s_common.c:975

i2s_new_channel()

ESP_GOTO_ON_ERROR(i2s_register_channel(i2s_obj, I2S_DIR_RX, chan_cfg->dma_desc_num),

i2s_common.c:990

i2s_new_channel()

Call Tree

i2s_register_channel() is called by 1 function and calls 10 functions:

i2s_new_channel()

i2s_register_channel()

xSemaphoreCreateBinaryWithCaps()

xSemaphoreCreateMutexWithCaps()

esp_log_timestamp()

esp_log_write()

heap_caps_calloc()

xQueueCreateWithCaps()

vQueueDeleteWithCaps()

vSemaphoreDeleteWithCaps()

i2s_del_channel()

Data Use

i2s_register_channel() reads 17 variables and writes 23 variables:

esp_log_level_t::ESP_LOG_ERROR

esp_log_level_t::ESP_LOG_WARN

esp_log_level_t::ESP_LOG_INFO

esp_log_level_t::ESP_LOG_DEBUG

esp_log_level_t::ESP_LOG_VERBOSE

i2s_dir_t::I2S_DIR_TX

i2s_role_t::I2S_ROLE_MASTER

i2s_comm_mode_t::I2S_COMM_MODE_NONE

i2s_state_t::I2S_CHAN_STATE_REGISTER

i2s_controller_t::tx_chan

i2s_controller_t::rx_chan

i2s_channel_obj_t::dma

i2s_channel_obj_t::mutex

i2s_channel_obj_t::binary

i2s_channel_obj_t::msg_queue

i2s_channel_obj_t::callbacks

i2s_register_channel()

Class Tree

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Override Tree

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Implementations

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Instances

Lifecycle

i2s_register_channel() allocates 1 types:

i2s_channel_obj_t

i2s_register_channel()