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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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31
examples/host/cdc_msc_hid/src/cdc_app.c
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@@ -54,8 +54,8 @@ void cdc_app_task(void)
uint8_t buf[64+1]; // +1 for extra null character
uint32_t const bufsize = sizeof(buf)-1;
uint32_t console_count = get_console_inputs(buf, bufsize);
buf[console_count] = 0;
uint32_t count = get_console_inputs(buf, bufsize);
buf[count] = 0;
// loop over all mounted interfaces
for(uint8_t idx=0; idx<CFG_TUH_CDC; idx++)
@@ -63,25 +63,28 @@ void cdc_app_task(void)
if ( tuh_cdc_mounted(idx) )
{
// console --> cdc interfaces
if (console_count)
if (count)
{
tuh_cdc_write(idx, buf, console_count);
tuh_cdc_write(idx, buf, count);
tuh_cdc_write_flush(idx);
}
// cdc interfaces -> console
if ( tuh_cdc_read_available(idx) )
{
uint8_t buf_cdc[64+1];
uint32_t cdc_count = tuh_cdc_read(idx, buf_cdc, sizeof(buf_cdc)-1);
buf_cdc[cdc_count] = 0;
printf((char*) buf_cdc);
}
}
}
}
// Invoked when received new data
void tuh_cdc_rx_cb(uint8_t idx)
{
uint8_t buf[64+1]; // +1 for extra null character
uint32_t const bufsize = sizeof(buf)-1;
// forward cdc interfaces -> console
uint32_t count = tuh_cdc_read(idx, buf, bufsize);
buf[count] = 0;
printf((char*) buf);
}
void tuh_cdc_mount_cb(uint8_t idx)
{
tuh_cdc_itf_info_t itf_info;