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usbh: add roothub debounncing flag to ignore attach/remove event on the roothub that is currently doing debouncing delay

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hathach
2025-04-28 12:59:59 +07:00
parent b5d4d0f623
commit 2c1414b4c1
2 changed files with 21 additions and 20 deletions
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22
src/host/usbh.c
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@@ -275,6 +275,7 @@ typedef struct {
typedef struct {
uint8_t controller_id; // controller ID
uint8_t enumerating_daddr; // device address of the device being enumerated
uint8_t attach_debouncing_bm; // bitmask for roothub port attach debouncing
tuh_bus_info_t dev0_bus; // bus info for dev0 in enumeration
usbh_ctrl_xfer_info_t ctrl_xfer_info; // control transfer
} usbh_data_t;
@@ -349,7 +350,7 @@ bool tuh_rhport_is_active(uint8_t rhport) {
bool tuh_rhport_reset_bus(uint8_t rhport, bool active) {
TU_VERIFY(tuh_rhport_is_active(rhport));
if ( active ) {
if (active) {
hcd_port_reset(rhport);
} else {
hcd_port_reset_end(rhport);
@@ -1021,10 +1022,18 @@ bool tuh_bus_info_get(uint8_t daddr, tuh_bus_info_t* bus_info) {
TU_ATTR_FAST_FUNC void hcd_event_handler(hcd_event_t const* event, bool in_isr) {
switch (event->event_id) {
case HCD_EVENT_DEVICE_ATTACH:
break;
case HCD_EVENT_DEVICE_REMOVE:
// Attach debouncing on roothub: skip attach/remove while debouncing delay
if (event->connection.hub_addr == 0) {
if (tu_bit_test(_usbh_data.attach_debouncing_bm, event->rhport)) {
return;
}
if (event->event_id == HCD_EVENT_DEVICE_ATTACH) {
// No debouncing, set flag if attach event
_usbh_data.attach_debouncing_bm |= TU_BIT(event->rhport);
}
}
break;
default: break;
@@ -1406,6 +1415,11 @@ static bool enum_new_device(hcd_event_t* event) {
// wait until device connection is stable TODO non blocking
tusb_time_delay_ms_api(ENUM_DEBOUNCING_DELAY_MS);
// clear roothub debouncing delay
if (dev0_bus->hub_addr == 0) {
_usbh_data.attach_debouncing_bm &= (uint8_t) ~TU_BIT(dev0_bus->rhport);
}
if (dev0_bus->hub_addr == 0) {
// connected directly to roothub
// USB bus not active and frame number is not available yet.