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Merge branch 'feature/spi_slave_hd_segment_example' into 'master'

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spi_slave_halfduplex: add an example for segment mode

Closes IDF-1699

See merge request espressif/esp-idf!10043
This commit is contained in:
Michael (XIAO Xufeng)
2021-04-23 03:23:25 +00:00
parent dfdc337e27 6930d6aa1e
commit fdb8736a95
17 changed files with 846 additions and 10 deletions
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2
components/driver/include/driver/spi_slave_hd.h
View File

@@ -58,7 +58,9 @@ typedef enum {
typedef struct {
slave_cb_t cb_buffer_tx; ///< Callback when master reads from shared buffer
slave_cb_t cb_buffer_rx; ///< Callback when master writes to shared buffer
slave_cb_t cb_send_dma_ready; ///< Callback when TX data buffer is loaded to the hardware (DMA)
slave_cb_t cb_sent; ///< Callback when data are sent
slave_cb_t cb_recv_dma_ready; ///< Callback when RX data buffer is loaded to the hardware (DMA)
slave_cb_t cb_recv; ///< Callback when data are received
slave_cb_t cb_cmd9; ///< Callback when CMD9 received
slave_cb_t cb_cmdA; ///< Callback when CMDA received

19
components/driver/spi_slave_hd.c
View File

@@ -350,6 +350,15 @@ static IRAM_ATTR void spi_slave_hd_intr_segment(void *arg)
if (ret == pdTRUE) {
spi_slave_hd_hal_txdma(hal, host->tx_desc->data, host->tx_desc->len);
tx_sent = true;
if (callback->cb_send_dma_ready) {
spi_slave_hd_event_t ev = {
.event = SPI_EV_SEND_DMA_READY,
.trans = host->tx_desc,
};
BaseType_t cb_awoken = pdFALSE;
callback->cb_send_dma_ready(callback->arg, &ev, &cb_awoken);
awoken |= cb_awoken;
}
}
}
if (!host->rx_desc) {
@@ -357,6 +366,15 @@ static IRAM_ATTR void spi_slave_hd_intr_segment(void *arg)
if (ret == pdTRUE) {
spi_slave_hd_hal_rxdma(hal, host->rx_desc->data, host->rx_desc->len);
rx_sent = true;
if (callback->cb_recv_dma_ready) {
spi_slave_hd_event_t ev = {
.event = SPI_EV_RECV_DMA_READY,
.trans = host->rx_desc,
};
BaseType_t cb_awoken = pdFALSE;
callback->cb_recv_dma_ready(callback->arg, &ev, &cb_awoken);
awoken |= cb_awoken;
}
}
}
@@ -483,7 +501,6 @@ esp_err_t spi_slave_hd_queue_trans(spi_host_device_t host_id, spi_slave_chan_t c
{
spi_slave_hd_slot_t* host = spihost[host_id];
SPIHD_CHECK(trans->len <= SPI_MAX_DMA_LEN, "Currently we only support transaction with data length within 4092 bytes", ESP_ERR_INVALID_ARG);
SPIHD_CHECK(host->append_mode == 0, "This API should be used for SPI Slave HD Segment Mode", ESP_ERR_INVALID_STATE);
SPIHD_CHECK(esp_ptr_dma_capable(trans->data), "The buffer should be DMA capable.", ESP_ERR_INVALID_ARG);
SPIHD_CHECK(trans->len <= host->max_transfer_sz && trans->len > 0, "Invalid buffer size", ESP_ERR_INVALID_ARG);