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fix(usb/host): Do not allow unaligned cache access for M2C direction

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This commit is contained in:
Tomas Rezucha
2024-03-26 16:41:12 +01:00
parent 73041ea10a
commit e9daf4912b
1 changed files with 1 additions and 2 deletions
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3
components/usb/hcd_dwc.c
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@@ -319,8 +319,7 @@ static inline void cache_sync_data_buffer(pipe_t *pipe, urb_t *urb, bool done)
const bool is_in = pipe->ep_char.bEndpointAddress & USB_B_ENDPOINT_ADDRESS_EP_DIR_MASK; const bool is_in = pipe->ep_char.bEndpointAddress & USB_B_ENDPOINT_ADDRESS_EP_DIR_MASK;
const bool is_ctrl = (pipe->ep_char.type == USB_DWC_XFER_TYPE_CTRL); const bool is_ctrl = (pipe->ep_char.type == USB_DWC_XFER_TYPE_CTRL);
if ((is_in == done) || is_ctrl) { if ((is_in == done) || is_ctrl) {
uint32_t flags = (done) ? ESP_CACHE_MSYNC_FLAG_DIR_M2C : 0; uint32_t flags = (done) ? ESP_CACHE_MSYNC_FLAG_DIR_M2C : ESP_CACHE_MSYNC_FLAG_UNALIGNED;
flags |= ESP_CACHE_MSYNC_FLAG_UNALIGNED;
esp_err_t ret = esp_cache_msync(urb->transfer.data_buffer, urb->transfer.data_buffer_size, flags); esp_err_t ret = esp_cache_msync(urb->transfer.data_buffer, urb->transfer.data_buffer_size, flags);
assert(ret == ESP_OK); assert(ret == ESP_OK);
} }