mirror of
https://github.com/espressif/esp-idf.git
synced 2026-06-11 11:42:39 +02:00
refactor(adc): refactor dma ll functions on adc continuous mode
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@@ -57,6 +57,54 @@ extern portMUX_TYPE rtc_spinlock; //TODO: Will be placed in the appropriate posi
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#define INTERNAL_BUF_NUM 5
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#if SOC_AHB_GDMA_VERSION == 1
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#define ADC_GDMA_HOST 0
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#define ADC_DMA_INTR_MASK GDMA_LL_EVENT_RX_SUC_EOF
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#define ADC_DMA_INTR_MASK GDMA_LL_EVENT_RX_SUC_EOF
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#define adc_dma_start(adc_dma, addr) gdma_start(s_adc_digi_ctx->rx_dma_channel, (intptr_t)addr)
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#define adc_dma_stop(adc_dma) gdma_stop(s_adc_digi_ctx->rx_dma_channel)
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#define adc_dma_reset(adc_dma) gdma_reset(s_adc_digi_ctx->rx_dma_channel)
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#define adc_dma_clear_intr(adc_dma)
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#define adc_dma_enable_intr(adc_dma)
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#define adc_dma_disable_intr(adc_dma)
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#define adc_dma_deinit(adc_dma) do { \
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gdma_disconnect(s_adc_digi_ctx->rx_dma_channel); \
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gdma_del_channel(s_adc_digi_ctx->rx_dma_channel); \
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} while (0)
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#elif CONFIG_IDF_TARGET_ESP32S2
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#define ADC_DMA_SPI_HOST SPI3_HOST
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#define ADC_DMA_INTR_MASK SPI_LL_INTR_IN_SUC_EOF
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#define adc_dma_start(adc_dma, addr) spi_dma_ll_rx_start(s_adc_digi_ctx->adc_spi_dev, s_adc_digi_ctx->spi_dma_ctx->rx_dma_chan.chan_id, (lldesc_t *)addr)
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#define adc_dma_stop(adc_dma) spi_dma_ll_rx_stop(s_adc_digi_ctx->adc_spi_dev, s_adc_digi_ctx->spi_dma_ctx->rx_dma_chan.chan_id);
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#define adc_dma_reset(adc_dma) spi_dma_ll_rx_reset(s_adc_digi_ctx->adc_spi_dev, s_adc_digi_ctx->spi_dma_ctx->rx_dma_chan.chan_id);
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#define adc_dma_clear_intr(adc_dma) spi_ll_clear_intr(s_adc_digi_ctx->adc_spi_dev, ADC_DMA_INTR_MASK)
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#define adc_dma_enable_intr(adc_dma) spi_ll_enable_intr(s_adc_digi_ctx->adc_spi_dev, ADC_DMA_INTR_MASK);
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#define adc_dma_disable_intr(adc_dma) spi_ll_disable_intr(s_adc_digi_ctx->adc_spi_dev, ADC_DMA_INTR_MASK);
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#define adc_dma_deinit(adc_dma) do { \
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esp_intr_free(s_adc_digi_ctx->intr_hdl); \
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spicommon_dma_chan_free(s_adc_digi_ctx->spi_dma_ctx); \
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spicommon_periph_free(ADC_DMA_SPI_HOST); \
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} while (0)
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#elif CONFIG_IDF_TARGET_ESP32
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#define ADC_DMA_I2S_HOST I2S_NUM_0
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#define ADC_DMA_INTR_MASK BIT(9)
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#define adc_dma_start(adc_dma, addr) do { \
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i2s_ll_enable_dma(s_adc_digi_ctx->adc_i2s_dev, true); \
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i2s_ll_rx_start_link(s_adc_digi_ctx->adc_i2s_dev, (uint32_t)addr); \
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} while (0)
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#define adc_dma_stop(adc_dma) i2s_ll_rx_stop_link(s_adc_digi_ctx->adc_i2s_dev);
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#define adc_dma_reset(adc_dma) i2s_ll_rx_reset_dma(s_adc_digi_ctx->adc_i2s_dev);
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#define adc_dma_clear_intr(adc_dma) i2s_ll_clear_intr_status(s_adc_digi_ctx->adc_i2s_dev, ADC_DMA_INTR_MASK);
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#define adc_dma_enable_intr(adc_dma) i2s_ll_enable_intr(s_adc_digi_ctx->adc_i2s_dev, ADC_DMA_INTR_MASK, true);
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#define adc_dma_disable_intr(adc_dma) i2s_ll_enable_intr(s_adc_digi_ctx->adc_i2s_dev, ADC_DMA_INTR_MASK, false);
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#define adc_dma_deinit(adc_dma) do { \
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esp_intr_free(s_adc_digi_ctx->intr_hdl); \
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i2s_platform_release_occupation(ADC_DMA_I2S_HOST); \
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} while (0)
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#endif
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/*---------------------------------------------------------------
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Digital Controller Context
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---------------------------------------------------------------*/
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@@ -69,9 +117,11 @@ typedef struct adc_digi_context_t {
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spi_host_device_t spi_host; //ADC uses this SPI DMA
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spi_dma_ctx_t *spi_dma_ctx; //spi_dma context
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intr_handle_t intr_hdl; //Interrupt handler
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spi_dev_t *adc_spi_dev ;
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#elif CONFIG_IDF_TARGET_ESP32
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i2s_port_t i2s_host; //ADC uses this I2S DMA
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intr_handle_t intr_hdl; //Interrupt handler
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i2s_dev_t *adc_i2s_dev;
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#endif
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RingbufHandle_t ringbuf_hdl; //RX ringbuffer handler
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intptr_t rx_eof_desc_addr; //eof descriptor address of RX channel
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@@ -163,17 +213,8 @@ esp_err_t adc_digi_deinitialize(void)
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free(s_adc_digi_ctx->rx_dma_buf);
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free(s_adc_digi_ctx->hal.rx_desc);
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free(s_adc_digi_ctx->hal_digi_ctrlr_cfg.adc_pattern);
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#if SOC_GDMA_SUPPORTED
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gdma_disconnect(s_adc_digi_ctx->rx_dma_channel);
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gdma_del_channel(s_adc_digi_ctx->rx_dma_channel);
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#elif CONFIG_IDF_TARGET_ESP32S2
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esp_intr_free(s_adc_digi_ctx->intr_hdl);
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spicommon_dma_chan_free(s_adc_digi_ctx->spi_dma_ctx);
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spicommon_periph_free(s_adc_digi_ctx->spi_host);
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#elif CONFIG_IDF_TARGET_ESP32
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esp_intr_free(s_adc_digi_ctx->intr_hdl);
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i2s_platform_release_occupation(s_adc_digi_ctx->i2s_host);
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#endif
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adc_dma_deinit(s_adc_digi_ctx);
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free(s_adc_digi_ctx);
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s_adc_digi_ctx = NULL;
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@@ -266,57 +307,46 @@ esp_err_t adc_digi_initialize(const adc_digi_init_config_t *init_config)
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};
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gdma_register_rx_event_callbacks(s_adc_digi_ctx->rx_dma_channel, &cbs, s_adc_digi_ctx);
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int dma_chan;
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gdma_get_channel_id(s_adc_digi_ctx->rx_dma_channel, &dma_chan);
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#elif CONFIG_IDF_TARGET_ESP32S2
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//ADC utilises SPI3 DMA on ESP32S2
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bool spi_success = false;
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uint32_t dma_chan = 0;
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spi_success = spicommon_periph_claim(SPI3_HOST, "adc");
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ret = spicommon_dma_chan_alloc(SPI3_HOST, SPI_DMA_CH_AUTO, &s_adc_digi_ctx->spi_dma_ctx);
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if (ret == ESP_OK) {
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s_adc_digi_ctx->spi_host = SPI3_HOST;
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spi_success = spicommon_periph_claim(ADC_DMA_SPI_HOST, "adc");
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ret = spicommon_dma_chan_alloc(ADC_DMA_SPI_HOST, SPI_DMA_CH_AUTO, &(s_adc_digi_ctx->spi_dma_ctx));
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if (ret != ESP_OK || spi_success != ESP_OK) {
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goto cleanup;
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}
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if (!spi_success || (s_adc_digi_ctx->spi_host != SPI3_HOST)) {
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if (!spi_success || (s_adc_digi_ctx->spi_host != ADC_DMA_SPI_HOST)) {
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goto cleanup;
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}
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dma_chan = s_adc_digi_ctx->spi_dma_ctx->rx_dma_chan.chan_id;
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ret = esp_intr_alloc(spicommon_irqdma_source_for_host(s_adc_digi_ctx->spi_host), 0, adc_dma_intr_handler,
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ret = esp_intr_alloc(spicommon_irqdma_source_for_host(ADC_DMA_SPI_HOST), 0, adc_dma_intr_handler,
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(void *)s_adc_digi_ctx, &s_adc_digi_ctx->intr_hdl);
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if (ret != ESP_OK) {
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goto cleanup;
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}
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s_adc_digi_ctx->adc_spi_dev = SPI_LL_GET_HW(ADC_DMA_SPI_HOST);
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#elif CONFIG_IDF_TARGET_ESP32
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//ADC utilises I2S0 DMA on ESP32
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uint32_t dma_chan = 0;
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ret = i2s_platform_acquire_occupation(I2S_NUM_0, "adc");
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ret = i2s_platform_acquire_occupation(ADC_DMA_I2S_HOST, "adc");
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if (ret != ESP_OK) {
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ret = ESP_ERR_NOT_FOUND;
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goto cleanup;
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}
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s_adc_digi_ctx->i2s_host = I2S_NUM_0;
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ret = esp_intr_alloc(i2s_periph_signal[s_adc_digi_ctx->i2s_host].irq, 0, adc_dma_intr_handler,
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ret = esp_intr_alloc(i2s_periph_signal[ADC_DMA_I2S_HOST].irq, 0, adc_dma_intr_handler,
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(void *)s_adc_digi_ctx, &s_adc_digi_ctx->intr_hdl);
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if (ret != ESP_OK) {
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goto cleanup;
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}
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s_adc_digi_ctx->adc_i2s_dev = I2S_LL_GET_HW(ADC_DMA_I2S_HOST);
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#endif
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adc_hal_dma_config_t config = {
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#if SOC_GDMA_SUPPORTED
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.dev = (void *)GDMA_LL_GET_HW(0),
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#elif CONFIG_IDF_TARGET_ESP32S2
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.dev = (void *)SPI_LL_GET_HW(s_adc_digi_ctx->spi_host),
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#elif CONFIG_IDF_TARGET_ESP32
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.dev = (void *)I2S_LL_GET_HW(s_adc_digi_ctx->i2s_host),
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#endif
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.eof_desc_num = INTERNAL_BUF_NUM,
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.eof_step = dma_desc_num_per_frame,
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.dma_chan = dma_chan,
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.eof_num = init_config->conv_num_each_intr / SOC_ADC_DIGI_DATA_BYTES_PER_CONV
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};
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adc_hal_dma_ctx_config(&s_adc_digi_ctx->hal, &config);
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@@ -348,16 +378,24 @@ static IRAM_ATTR void adc_dma_intr_handler(void *arg)
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adc_digi_context_t *ctx = (adc_digi_context_t *)arg;
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bool need_yield = false;
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bool conversion_finish = adc_hal_check_event(&ctx->hal, ADC_HAL_DMA_INTR_MASK);
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#if CONFIG_IDF_TARGET_ESP32S2
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bool conversion_finish = spi_ll_get_intr(s_adc_digi_ctx->adc_spi_dev, ADC_DMA_INTR_MASK);
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if (conversion_finish) {
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adc_hal_digi_clr_intr(&s_adc_digi_ctx->hal, ADC_HAL_DMA_INTR_MASK);
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intptr_t desc_addr = adc_hal_get_desc_addr(&ctx->hal);
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spi_ll_clear_intr(s_adc_digi_ctx->adc_spi_dev, ADC_DMA_INTR_MASK);
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intptr_t desc_addr = spi_dma_ll_get_in_suc_eof_desc_addr(s_adc_digi_ctx->adc_spi_dev, s_adc_digi_ctx->spi_dma_ctx->rx_dma_chan.chan_id);
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ctx->rx_eof_desc_addr = desc_addr;
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need_yield = s_adc_dma_intr(ctx);
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}
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#elif CONFIG_IDF_TARGET_ESP32
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bool conversion_finish = i2s_ll_get_intr_status(s_adc_digi_ctx->adc_i2s_dev) & ADC_DMA_INTR_MASK;
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if (conversion_finish) {
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i2s_ll_clear_intr_status(s_adc_digi_ctx->adc_i2s_dev, ADC_DMA_INTR_MASK);
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uint32_t desc_addr;
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i2s_ll_rx_get_eof_des_addr(s_adc_digi_ctx->adc_i2s_dev, &desc_addr);
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ctx->rx_eof_desc_addr = (intptr_t)desc_addr;
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need_yield = s_adc_dma_intr(ctx);
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}
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#endif
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if (need_yield) {
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portYIELD_FROM_ISR();
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}
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@@ -433,8 +471,16 @@ esp_err_t adc_digi_start(void)
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adc_hal_digi_init(&s_adc_digi_ctx->hal);
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adc_hal_digi_controller_config(&s_adc_digi_ctx->hal, &s_adc_digi_ctx->hal_digi_ctrlr_cfg);
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//start conversion
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adc_hal_digi_start(&s_adc_digi_ctx->hal, s_adc_digi_ctx->rx_dma_buf);
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adc_dma_stop(s_adc_digi_ctx);
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adc_hal_digi_connect(false);
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adc_dma_reset(s_adc_digi_ctx);
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adc_hal_digi_reset();
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adc_hal_digi_dma_link(&s_adc_digi_ctx->hal, s_adc_digi_ctx->rx_dma_buf);
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adc_dma_start(s_adc_digi_ctx, s_adc_digi_ctx->hal.rx_desc);
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adc_hal_digi_connect(true);
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adc_hal_digi_enable(true);
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return ESP_OK;
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}
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@@ -447,14 +493,12 @@ esp_err_t adc_digi_stop(void)
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}
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s_adc_digi_ctx->driver_start_flag = 0;
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//disable the in suc eof intrrupt
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adc_hal_digi_dis_intr(&s_adc_digi_ctx->hal, ADC_HAL_DMA_INTR_MASK);
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//clear the in suc eof interrupt
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adc_hal_digi_clr_intr(&s_adc_digi_ctx->hal, ADC_HAL_DMA_INTR_MASK);
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//stop ADC
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adc_hal_digi_stop(&s_adc_digi_ctx->hal);
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adc_dma_stop(s_adc_digi_ctx);
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adc_hal_digi_enable(false);
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adc_hal_digi_connect(false);
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adc_hal_digi_deinit();
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adc_hal_digi_deinit(&s_adc_digi_ctx->hal);
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#if CONFIG_PM_ENABLE
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if (s_adc_digi_ctx->pm_lock) {
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esp_pm_lock_release(s_adc_digi_ctx->pm_lock);
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