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drivers: usb_dc_nrfx: add attached event delay

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Add configurable attached event delay. Delay can be used to give
USB Charging Controller time for initialization.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
This commit is contained in:
Johann Fischer 2020-12-17 18:02:59 +01:00 committed by Anas Nashif
parent 008bfeb43e
commit 26f2e33227
2 changed files with 46 additions and 15 deletions
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9
drivers/usb/device/Kconfig
View file

@ -75,6 +75,15 @@ config USB_NRFX_WORK_QUEUE_STACK_SIZE
for handling the events from the USBD ISR, i.e. executing endpoint
callbacks and providing proper notifications to the USB device stack.
config USB_NRFX_ATTACHED_EVENT_DELAY
int "USBD attached event delay"
range 0 1000
default 0
depends on USB_NRFX
help
Configurable attached event delay in milliseconds. Delay can be used
to give USB Charging Controller time for initialization.
config USB_KINETIS
bool "Kinetis USB Device Controller Driver"
select USB_DEVICE_DRIVER

52
drivers/usb/device/usb_dc_nrfx.c
View file

@ -466,14 +466,50 @@ static inline struct usbd_event *usbd_evt_alloc(void)
return ev;
}
static void submit_dc_power_event(enum usbd_periph_state state)
{
struct usbd_event *ev = usbd_evt_alloc();
if (!ev) {
return;
}
ev->evt_type = USBD_EVT_POWER;
ev->evt.pwr_evt.state = state;
usbd_evt_put(ev);
if (usbd_ctx.attached) {
usbd_work_schedule();
}
}
#if CONFIG_USB_NRFX_ATTACHED_EVENT_DELAY
static void attached_evt_delay_handler(struct k_timer *timer)
{
LOG_DBG("ATTACHED event delay done");
submit_dc_power_event(USBD_ATTACHED);
}
static K_TIMER_DEFINE(delay_timer, attached_evt_delay_handler, NULL);
#endif
static void usb_dc_power_event_handler(nrfx_power_usb_evt_t event)
{
enum usbd_periph_state new_state;
switch (event) {
case NRFX_POWER_USB_EVT_DETECTED:
#if !CONFIG_USB_NRFX_ATTACHED_EVENT_DELAY
new_state = USBD_ATTACHED;
break;
#else
LOG_DBG("ATTACHED event delayed");
k_timer_start(&delay_timer,
K_MSEC(CONFIG_USB_NRFX_ATTACHED_EVENT_DELAY),
K_NO_WAIT);
return;
#endif
case NRFX_POWER_USB_EVT_READY:
new_state = USBD_POWERED;
break;
@ -485,21 +521,7 @@ static void usb_dc_power_event_handler(nrfx_power_usb_evt_t event)
return;
}
struct usbd_event *ev = usbd_evt_alloc();
if (!ev) {
return;
}
ev->evt_type = USBD_EVT_POWER;
ev->evt.pwr_evt.state = new_state;
usbd_evt_put(ev);
if (usbd_ctx.attached) {
usbd_work_schedule();
}
submit_dc_power_event(new_state);
}
/* Stopping HFXO, algorithm supports case when stop comes before clock is