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add more host cdc API

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tuh_cdc_write_available(), tuh_cdc_read_flush(), tuh_cdc_rx_cb()
callback
This commit is contained in:
hathach
2022-12-21 12:47:00 +07:00
parent edc559cb4d
commit 84a483f5ea
3 changed files with 71 additions and 54 deletions
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34
src/class/cdc/cdc_host.c
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@@ -185,6 +185,17 @@ uint32_t tu_edpt_stream_read_available(tu_edpt_stream_t* s)
return (uint32_t) tu_fifo_count(&s->ff);
}
uint32_t tu_edpt_stream_write_available(tu_edpt_stream_t* s)
{
return (uint32_t) tu_fifo_remaining(&s->ff);
}
void tu_edpt_stream_read_clear(uint8_t daddr, tu_edpt_stream_t* s)
{
tu_fifo_clear(&s->ff);
tu_edpt_stream_read_xfer(daddr, s);
}
typedef struct {
uint8_t daddr;
uint8_t bInterfaceNumber;
@@ -227,6 +238,12 @@ static inline cdch_interface_t* get_itf(uint8_t idx)
return (p_cdc->daddr != 0) ? p_cdc : NULL;
}
TU_ATTR_ALWAYS_INLINE
static inline uint8_t itf2idx(cdch_interface_t* p_cdc)
{
return (uint8_t) (p_cdc - cdch_data);
}
static inline cdch_interface_t* get_itf_by_ep_addr(uint8_t daddr, uint8_t ep_addr)
{
for(uint8_t i=0; i<CFG_TUH_CDC; i++)
@@ -320,6 +337,14 @@ uint32_t tuh_cdc_write_flush(uint8_t idx)
return tu_edpt_stream_write_xfer(p_cdc->daddr, &p_cdc->stream.tx);
}
uint32_t tuh_cdc_write_available(uint8_t idx)
{
cdch_interface_t* p_cdc = get_itf(idx);
TU_VERIFY(p_cdc);
return tu_edpt_stream_write_available(&p_cdc->stream.tx);
}
uint32_t tuh_cdc_read (uint8_t idx, void* buffer, uint32_t bufsize)
{
cdch_interface_t* p_cdc = get_itf(idx);
@@ -336,6 +361,14 @@ uint32_t tuh_cdc_read_available(uint8_t idx)
return tu_edpt_stream_read_available(&p_cdc->stream.rx);
}
void tuh_cdc_read_flush (uint8_t idx)
{
cdch_interface_t* p_cdc = get_itf(idx);
TU_VERIFY(p_cdc, );
tu_edpt_stream_read_clear(p_cdc->daddr, &p_cdc->stream.rx);
}
//--------------------------------------------------------------------+
// Control Endpoint API
//--------------------------------------------------------------------+
@@ -463,6 +496,7 @@ bool cdch_xfer_cb(uint8_t daddr, uint8_t ep_addr, xfer_result_t event, uint32_t
if (xferred_bytes) tu_edpt_stream_read_xfer_complete(&p_cdc->stream.rx, xferred_bytes);
// invoke receive callback
if (tuh_cdc_rx_cb) tuh_cdc_rx_cb(itf2idx(p_cdc));
// prepare for next transfer if needed
tu_edpt_stream_read_xfer(daddr, &p_cdc->stream.rx);