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SourceVuESP-IDF Framework and ExamplesESP-IDFsdio_slave_send_queue()

sdio_slave_send_queue() function

Put a new sending transfer into the send queue. The driver takes ownership of the buffer until the buffer is returned by ``sdio_slave_send_get_finished`` after the transaction is finished.

Syntax

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Summary

Declaration

Definition

from sdio_slave.h:198

esp_err_t sdio_slave_send_queue(uint8_t* addr, size_t len, void* arg, TickType_t wait);

Implemented in sdio_slave.c:609

Arguments

Argument

Description

addr

Address for data to be sent. The buffer should be DMA capable and 32-bit aligned.

len

Length of the data, should not be longer than 4092 bytes (may support longer in the future).

arg

Argument to returned in ``sdio_slave_send_get_finished``. The argument can be used to indicate which transaction is done, or as a parameter for a callback. Set to NULL if not needed.

wait

Time to wait if the buffer is full.

Return value

- ESP_ERR_INVALID_ARG if the length is not greater than 0. - ESP_ERR_TIMEOUT if the queue is still full until timeout. - ESP_OK if success.

Examples

sdio_slave_send_queue() is referenced by 1 libraries and example projects:

References

from 0/1 examples

Code

Location

Referrer

esp_err_t sdio_slave_send_queue(uint8_t *addr, size_t len, void *arg, TickType_t wait)

sdio_slave.c:609

esp_err_t sdio_slave_send_queue(uint8_t* addr, size_t len, void* arg, TickType_t wait);

sdio_slave.h:198

esp_err_t err = sdio_slave_send_queue(addr, len, (void *)timestamp, portMAX_DELAY);

sdio_slave.c:648

sdio_slave_transmit()

Call Tree

from 0/1 examples

sdio_slave_send_queue() is called by 1 function and calls 7 functions:

sdio_slave_transmit()

sdio_slave_send_queue()

esp_ptr_dma_capable()

vPortEnterCritical()

esp_log_timestamp()

esp_log_write()

vPortExitCritical()

xQueueSemaphoreTake()

sdio_slave_hal_send_queue()

Data Use

from 0/1 examples

sdio_slave_send_queue() reads 9 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

sdio_context_t::hal

sdio_context_t::remain_cnt

sdio_slave_send_queue()

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Override Tree

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Implementations

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Lifecycle

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