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[Core] usb_device_state: consolidate usb state handling across implementations (#24258)

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* usb_device_state: add idle_rate, led and protocol

Previously all usb drivers and platform implementations (expect for our
oddball atsam) tracked the same two global variables:

- keyboard_protocol: to indicate if we are in report or boot protocol
- keyboard_idle: for the idle_rate of the keyboard endpoint

And a local variable that was exposed trough some indirection:

- keyboard_led_state: for the currently set indicator leds (caps lock etc.)

These have all been moved into the usb_device_state struct wich is
accessible by getters and setters.

This reduces code duplication and centralizes the state management
across platforms and drivers.

Signed-off-by: Stefan Kerkmann <karlk90@pm.me>

* usb_device_state: reset protocol on reset

The usb hid specification section 7.2.6 states:

When initialized, all devices default to report protocol. However the
host should not make any assumptions about the device’s state and should
set the desired protocol whenever initializing a device.

Thus on reset we should always do exactly that.

Signed-off-by: Stefan Kerkmann <karlk90@pm.me>

* keyboards: fix oversize warnings

Signed-off-by: Stefan Kerkmann <karlk90@pm.me>

---------

Signed-off-by: Stefan Kerkmann <karlk90@pm.me>
This commit is contained in:
Stefan Kerkmann 2024-10-18 09:57:08 +02:00 • committed by GitHub
parent 80f8aae3ec
commit 3f9d464412
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GPG key ID: B5690EEEBB952194
20 changed files with 165 additions and 130 deletions
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26
quantum/os_detection.c
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@ -65,8 +65,8 @@ static volatile os_variant_t reported_os = OS_UNSURE;
static volatile bool first_report = true;
// to react on USB state changes
static volatile enum usb_device_state current_usb_device_state = USB_DEVICE_STATE_NO_INIT;
static volatile enum usb_device_state maxprev_usb_device_state = USB_DEVICE_STATE_NO_INIT;
static volatile struct usb_device_state current_usb_device_state = {.configure_state = USB_DEVICE_STATE_NO_INIT};
static volatile struct usb_device_state maxprev_usb_device_state = {.configure_state = USB_DEVICE_STATE_NO_INIT};
// the OS detection might be unstable for a while, "debounce" it
static volatile bool debouncing = false;
@ -88,7 +88,7 @@ void os_detection_task(void) {
return;
}
#endif
if (current_usb_device_state == USB_DEVICE_STATE_CONFIGURED) {
if (current_usb_device_state.configure_state == USB_DEVICE_STATE_CONFIGURED) {
// debouncing goes for both the detected OS as well as the USB state
if (debouncing && timer_elapsed_fast(last_time) >= OS_DETECTION_DEBOUNCE) {
debouncing = false;
@ -163,19 +163,19 @@ os_variant_t detected_host_os(void) {
void erase_wlength_data(void) {
memset(&setups_data, 0, sizeof(setups_data));
detected_os = OS_UNSURE;
reported_os = OS_UNSURE;
current_usb_device_state = USB_DEVICE_STATE_NO_INIT;
maxprev_usb_device_state = USB_DEVICE_STATE_NO_INIT;
debouncing = false;
last_time = 0;
first_report = true;
detected_os = OS_UNSURE;
reported_os = OS_UNSURE;
current_usb_device_state.configure_state = USB_DEVICE_STATE_NO_INIT;
maxprev_usb_device_state.configure_state = USB_DEVICE_STATE_NO_INIT;
debouncing = false;
last_time = 0;
first_report = true;
}
void os_detection_notify_usb_device_state_change(enum usb_device_state usb_device_state) {
void os_detection_notify_usb_device_state_change(struct usb_device_state usb_device_state) {
// treat this like any other source of instability
if (maxprev_usb_device_state < current_usb_device_state) {
maxprev_usb_device_state = current_usb_device_state;
if (maxprev_usb_device_state.configure_state < current_usb_device_state.configure_state) {
maxprev_usb_device_state.configure_state = current_usb_device_state.configure_state;
}
current_usb_device_state = usb_device_state;
last_time = timer_read_fast();