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Add availableForWrite method to Serial. #311

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merged 2 commits into from
Jul 31, 2019
Merged

Add availableForWrite method to Serial. #311

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d7de810
Add availableForWrite method to Serial.
pyro9 Jul 26, 2019
4eca9f8
Use tu_fifo_remaining instead of tu_fifo_count
pyro9 Jul 27, 2019
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5 changes: 5 additions & 0 deletions cores/nRF5/Adafruit_TinyUSB_Core/Adafruit_USBD_CDC.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,11 @@ size_t Adafruit_USBD_CDC::write(const uint8_t *buffer, size_t size)
return size - remain;
}

size_t Adafruit_USBD_CDC::availableForWrite(void)
{
return tud_cdc_write_available();
}

extern "C"
{

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1 change: 1 addition & 0 deletions cores/nRF5/Adafruit_TinyUSB_Core/Adafruit_USBD_CDC.h
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Expand Up @@ -50,6 +50,7 @@ class Adafruit_USBD_CDC : public Stream, Adafruit_USBD_Interface
size_t write(const char *buffer, size_t size) {
return write((const uint8_t *)buffer, size);
}
size_t availableForWrite(void);
operator bool();
};

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5 changes: 5 additions & 0 deletions cores/nRF5/Adafruit_TinyUSB_Core/tinyusb/src/class/cdc/cdc_device.c
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Expand Up @@ -190,6 +190,11 @@ bool tud_cdc_n_write_flush (uint8_t itf)
return true;
}

uint32_t tud_cdc_n_write_available (uint8_t itf)
{
return tu_fifo_remaining(&_cdcd_itf[itf].tx_ff);
}


//--------------------------------------------------------------------+
// USBD Driver API
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7 changes: 7 additions & 0 deletions cores/nRF5/Adafruit_TinyUSB_Core/tinyusb/src/class/cdc/cdc_device.h
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Expand Up @@ -66,6 +66,7 @@ uint32_t tud_cdc_n_write_char (uint8_t itf, char ch);
uint32_t tud_cdc_n_write (uint8_t itf, void const* buffer, uint32_t bufsize);
uint32_t tud_cdc_n_write_str (uint8_t itf, char const* str);
bool tud_cdc_n_write_flush (uint8_t itf);
uint32_t tud_cdc_n_write_available (uint8_t itf);

//--------------------------------------------------------------------+
// Application API (Interface0)
Expand All @@ -85,6 +86,7 @@ static inline uint32_t tud_cdc_write_char (char ch);
static inline uint32_t tud_cdc_write (void const* buffer, uint32_t bufsize);
static inline uint32_t tud_cdc_write_str (char const* str);
static inline bool tud_cdc_write_flush (void);
static inline uint32_t tud_cdc_write_available (void);

//--------------------------------------------------------------------+
// Application Callback API (weak is optional)
Expand Down Expand Up @@ -170,6 +172,11 @@ static inline bool tud_cdc_write_flush (void)
return tud_cdc_n_write_flush(0);
}

static inline uint32_t tud_cdc_write_available(void)
{
return tud_cdc_n_write_available(0);
}

/** @} */
/** @} */

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