espressif/esp-idf
1
0
Fork 1
mirror of https://github.com/espressif/esp-idf.git synced 2026-05-19 23:45:28 +02:00
Code Issues Packages Projects Releases Wiki Activity

feat(dma): advanced dma malloc helper

Browse Source
This commit is contained in:
Armando
2024-01-24 13:28:15 +08:00
committed by Gao Xu
parent 9c846916fa
commit f0518b3c16
27 changed files with 670 additions and 128 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/driver/deprecated/i2s_legacy.c
+7 -2
View File
@@ -575,14 +575,19 @@ static esp_err_t i2s_alloc_dma_buffer(i2s_port_t i2s_num, i2s_dma_t *dma_obj)
size_t desc_size = 0;
for (int cnt = 0; cnt < buf_cnt; cnt++) {
/* Allocate DMA buffer */
esp_dma_calloc(1, sizeof(char) * dma_obj->buf_size, (MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA), (void **)&dma_obj->buf[cnt], NULL);
esp_dma_mem_info_t dma_mem_info = {
.heap_caps = MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA,
.dma_alignment = 4,
};
esp_dma_capable_calloc(1, sizeof(char) * dma_obj->buf_size, &dma_mem_info, (void **)&dma_obj->buf[cnt], NULL);
ESP_GOTO_ON_FALSE(dma_obj->buf[cnt], ESP_ERR_NO_MEM, err, TAG, "Error malloc dma buffer");
#if SOC_CACHE_INTERNAL_MEM_VIA_L1CACHE
esp_cache_msync(dma_obj->buf[cnt], dma_obj->buf_size, ESP_CACHE_MSYNC_FLAG_DIR_C2M);
#endif
/* Allocate DMA descriptor */
esp_dma_calloc(1, sizeof(lldesc_t), MALLOC_CAP_DEFAULT, (void **)&dma_obj->desc[cnt], &desc_size);
esp_dma_capable_calloc(1, sizeof(lldesc_t), &dma_mem_info, (void **)&dma_obj->desc[cnt], &desc_size);
// esp_dma_calloc(1, sizeof(lldesc_t), MALLOC_CAP_DEFAULT, (void **)&dma_obj->desc[cnt], &desc_size);
ESP_GOTO_ON_FALSE(dma_obj->desc[cnt], ESP_ERR_NO_MEM, err, TAG, "Error malloc dma description entry");
}
/* DMA descriptor must be initialize after all descriptor has been created, otherwise they can't be linked together as a chain */