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add vendor peek, change cdc peek signature, change cdc read_char() return from signed char to int32_t

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This commit is contained in:
hathach
2019-08-01 10:46:27 +07:00
parent 2c2db31b09
commit bd08d0edc9
5 changed files with 86 additions and 69 deletions
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27
src/class/cdc/cdc_device.c
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@@ -121,12 +121,6 @@ uint32_t tud_cdc_n_available(uint8_t itf)
return tu_fifo_count(&_cdcd_itf[itf].rx_ff);
}
signed char tud_cdc_n_read_char(uint8_t itf)
{
signed char ch;
return tud_cdc_n_read(itf, &ch, 1) ? ch : (-1);
}
uint32_t tud_cdc_n_read(uint8_t itf, void* buffer, uint32_t bufsize)
{
uint32_t num_read = tu_fifo_read_n(&_cdcd_itf[itf].rx_ff, buffer, bufsize);
@@ -134,10 +128,9 @@ uint32_t tud_cdc_n_read(uint8_t itf, void* buffer, uint32_t bufsize)
return num_read;
}
signed char tud_cdc_n_peek(uint8_t itf, int pos)
bool tud_cdc_n_peek(uint8_t itf, int pos, uint8_t* chr)
{
signed char ch;
return tu_fifo_peek_at(&_cdcd_itf[itf].rx_ff, pos, &ch) ? ch : (-1);
return tu_fifo_peek_at(&_cdcd_itf[itf].rx_ff, pos, chr);
}
void tud_cdc_n_read_flush (uint8_t itf)
@@ -149,17 +142,6 @@ void tud_cdc_n_read_flush (uint8_t itf)
//--------------------------------------------------------------------+
// WRITE API
//--------------------------------------------------------------------+
uint32_t tud_cdc_n_write_char(uint8_t itf, char ch)
{
return tud_cdc_n_write(itf, &ch, 1);
}
uint32_t tud_cdc_n_write_str (uint8_t itf, char const* str)
{
return tud_cdc_n_write(itf, str, strlen(str));
}
uint32_t tud_cdc_n_write(uint8_t itf, void const* buffer, uint32_t bufsize)
{
uint16_t ret = tu_fifo_write_n(&_cdcd_itf[itf].tx_ff, buffer, bufsize);
@@ -190,6 +172,11 @@ 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