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make notify API and memory configurable with CFG_TUD_CDC_NOTIFY

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add tud_cdc_n_notify_conn_speed_change()
add tud_cdc_notify_complete_cb()
This commit is contained in:
hathach
2025-07-03 13:42:05 +07:00
parent cf3966efd9
commit 41606a533d
6 changed files with 149 additions and 121 deletions
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13
examples/device/cdc_dual_ports/src/main.c
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@@ -102,16 +102,13 @@ void tud_umount_cb(void) {
// USB CDC
//--------------------------------------------------------------------+
static void cdc_task(void) {
uint8_t itf;
for (itf = 0; itf < CFG_TUD_CDC; itf++) {
for (uint8_t itf = 0; itf < CFG_TUD_CDC; itf++) {
// connected() check for DTR bit
// Most but not all terminal client set this when making connection
// if ( tud_cdc_n_connected(itf) )
{
if (tud_cdc_n_available(itf)) {
uint8_t buf[64];
uint32_t count = tud_cdc_n_read(itf, buf, sizeof(buf));
// echo back to both serial ports
@@ -121,11 +118,11 @@ static void cdc_task(void) {
// Press on-board button to send Uart status notification
static uint32_t btn_prev = 0;
static cdc_uart_state_t state = {0};
uint32_t btn = board_button_read();
static cdc_notify_uart_state_t uart_state = { .value = 0 };
const uint32_t btn = board_button_read();
if (!btn_prev && btn) {
state.bTxCarrier ^= 1;
tud_cdc_send_uart_state(state);
uart_state.dsr ^= 1;
tud_cdc_notify_uart_state(&uart_state);
}
btn_prev = btn;
}