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cd5b3877bf
- DWC-OTG internal DMA can access psram on esp32p4
- Move DMA memory buffs to psram, to save internal ram
- HCD tests and MSC example runs in CI with psram enabled
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "sdkconfig.h"
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#include "esp_heap_caps.h"
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#include "usb_private.h"
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#include "usb/usb_types_ch9.h"
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// ----------------------------------------------------- Macros --------------------------------------------------------
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#if !CONFIG_IDF_TARGET_LINUX
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#include "esp_private/esp_cache_private.h"
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#define ALIGN_UP(num, align) ((align) == 0 ? (num) : (((num) + ((align) - 1)) & ~((align) - 1)))
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#endif
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// ----------------------- Configs -------------------------
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#ifdef CONFIG_USB_HOST_DWC_DMA_CAP_MEMORY_IN_PSRAM // In esp32p4, the USB-DWC internal DMA can access external RAM
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#define DATA_BUFFER_CAPS (MALLOC_CAP_DMA | MALLOC_CAP_CACHE_ALIGNED | MALLOC_CAP_SPIRAM)
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#else
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#define DATA_BUFFER_CAPS (MALLOC_CAP_DMA | MALLOC_CAP_CACHE_ALIGNED | MALLOC_CAP_INTERNAL)
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#endif
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urb_t *urb_alloc(size_t data_buffer_size, int num_isoc_packets)
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{
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urb_t *urb = heap_caps_calloc(1, sizeof(urb_t) + (sizeof(usb_isoc_packet_desc_t) * num_isoc_packets), MALLOC_CAP_DEFAULT);
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#if !CONFIG_IDF_TARGET_LINUX
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// Note for developers: We do not use heap_caps_get_allocated_size() because it is broken with HEAP_POISONING=COMPREHENSIVE
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size_t cache_align = 0;
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esp_cache_get_alignment(DATA_BUFFER_CAPS, &cache_align);
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data_buffer_size = ALIGN_UP(data_buffer_size, cache_align);
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#endif
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void *data_buffer = heap_caps_malloc(data_buffer_size, DATA_BUFFER_CAPS);
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if (urb == NULL || data_buffer == NULL) {
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goto err;
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}
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// Cast as dummy transfer so that we can assign to const fields
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usb_transfer_dummy_t *dummy_transfer = (usb_transfer_dummy_t *)&urb->transfer;
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dummy_transfer->data_buffer = data_buffer;
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dummy_transfer->data_buffer_size = data_buffer_size;
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dummy_transfer->num_isoc_packets = num_isoc_packets;
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return urb;
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err:
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heap_caps_free(urb);
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heap_caps_free(data_buffer);
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return NULL;
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}
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void urb_free(urb_t *urb)
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{
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if (urb == NULL) {
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return;
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}
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heap_caps_free(urb->transfer.data_buffer);
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heap_caps_free(urb);
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}
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