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feat(sdmmc): add support for PSRAM DMA on ESP32-P4

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This commit is contained in:
Ivan Grokhotkov
2024-04-04 17:04:01 +02:00
parent e0cb43b9ab
commit 49b4bc175e
9 changed files with 101 additions and 44 deletions
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6
components/sdmmc/sdmmc_cmd.c
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@@ -405,6 +405,9 @@ esp_err_t sdmmc_write_sectors(sdmmc_card_t* card, const void* src,
size_t block_size = card->csd.sector_size;
esp_dma_mem_info_t dma_mem_info;
card->host.get_dma_info(card->host.slot, &dma_mem_info);
#ifdef SOC_SDMMC_PSRAM_DMA_CAPABLE
dma_mem_info.extra_heap_caps |= MALLOC_CAP_SPIRAM;
#endif
if (esp_dma_is_buffer_alignment_satisfied(src, block_size * block_count, dma_mem_info)) {
err = sdmmc_write_sectors_dma(card, src, start_block, block_count, block_size * block_count);
} else {
@@ -413,6 +416,9 @@ esp_err_t sdmmc_write_sectors(sdmmc_card_t* card, const void* src,
// DMA-capable buffer.
void *tmp_buf = NULL;
size_t actual_size = 0;
// Clear the SPIRAM flag. We don't want to force the allocation into SPIRAM, the allocator
// will decide based on the buffer size and memory availability.
dma_mem_info.extra_heap_caps &= ~MALLOC_CAP_SPIRAM;
err = esp_dma_capable_malloc(block_size, &dma_mem_info, &tmp_buf, &actual_size);
if (err != ESP_OK) {
return err;