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update edpt_stream to support non-buffered (no fifo) mode

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hathach
2024-09-10 16:15:51 +07:00
parent 867f17acea
commit c0030810dd
2 changed files with 72 additions and 44 deletions
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14
src/common/tusb_private.h
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@@ -129,11 +129,9 @@ uint32_t tu_edpt_stream_write_xfer(tu_edpt_stream_t* s);
// Start an zero-length packet if needed
bool tu_edpt_stream_write_zlp_if_needed(tu_edpt_stream_t* s, uint32_t last_xferred_bytes);
// Get the number of bytes available for writing
TU_ATTR_ALWAYS_INLINE static inline
uint32_t tu_edpt_stream_write_available(tu_edpt_stream_t* s) {
return (uint32_t) tu_fifo_remaining(&s->ff);
}
// Get the number of bytes available for writing to FIFO
// Note: if no fifo, return endpoint size if not busy, 0 otherwise
uint32_t tu_edpt_stream_write_available(tu_edpt_stream_t* s);
//--------------------------------------------------------------------+
// Stream Read
@@ -148,13 +146,15 @@ uint32_t tu_edpt_stream_read_xfer(tu_edpt_stream_t* s);
// Must be called in the transfer complete callback
TU_ATTR_ALWAYS_INLINE static inline
void tu_edpt_stream_read_xfer_complete(tu_edpt_stream_t* s, uint32_t xferred_bytes) {
tu_fifo_write_n(&s->ff, s->ep_buf, (uint16_t) xferred_bytes);
if (tu_fifo_depth(&s->ff)) {
tu_fifo_write_n(&s->ff, s->ep_buf, (uint16_t) xferred_bytes);
}
}
// Same as tu_edpt_stream_read_xfer_complete but skip the first n bytes
TU_ATTR_ALWAYS_INLINE static inline
void tu_edpt_stream_read_xfer_complete_offset(tu_edpt_stream_t* s, uint32_t xferred_bytes, uint32_t skip_offset) {
if (skip_offset < xferred_bytes) {
if (tu_fifo_depth(&s->ff) && (skip_offset < xferred_bytes)) {
tu_fifo_write_n(&s->ff, s->ep_buf + skip_offset, (uint16_t) (xferred_bytes - skip_offset));
}
}