void tcpci_tcpc_alert(int port)
{
int status;
/* Read the Alert register from the TCPC */
tcpm_alert_status(port, &status);
/*
* Clear alert status for everything except RX_STATUS, which shouldn't
* be cleared until we have successfully retrieved message.
*/
if (status & ~TCPC_REG_ALERT_RX_STATUS)
tcpc_write16(port, TCPC_REG_ALERT,
status & ~TCPC_REG_ALERT_RX_STATUS);
if (status & TCPC_REG_ALERT_CC_STATUS) {
/* CC status changed, wake task */
task_set_event(PD_PORT_TO_TASK_ID(port), PD_EVENT_CC, 0);
}
if (status & TCPC_REG_ALERT_POWER_STATUS) {
int reg = 0;
tcpc_read(port, TCPC_REG_POWER_STATUS_MASK, ®);
if (reg == TCPC_REG_POWER_STATUS_MASK_ALL) {
/*
* If power status mask has been reset, then the TCPC
* has reset.
*/
task_set_event(PD_PORT_TO_TASK_ID(port),
PD_EVENT_TCPC_RESET, 0);
} else {
/* Read Power Status register */
tcpci_tcpm_get_power_status(port, ®);
/* Update VBUS status */
tcpc_vbus[port] = reg &
TCPC_REG_POWER_STATUS_VBUS_PRES ? 1 : 0;
#if defined(CONFIG_USB_PD_VBUS_DETECT_TCPC) && defined(CONFIG_USB_CHARGER)
/* Update charge manager with new VBUS state */
usb_charger_vbus_change(port, tcpc_vbus[port]);
task_wake(PD_PORT_TO_TASK_ID(port));
#endif /* CONFIG_USB_PD_VBUS_DETECT_TCPC && CONFIG_USB_CHARGER */
}
}
if (status & TCPC_REG_ALERT_RX_STATUS) {
/* message received */
task_set_event(PD_PORT_TO_TASK_ID(port), PD_EVENT_RX, 0);
}
if (status & TCPC_REG_ALERT_RX_HARD_RST) {
/* hard reset received */
pd_execute_hard_reset(port);
task_wake(PD_PORT_TO_TASK_ID(port));
}
if (status & TCPC_REG_ALERT_TX_COMPLETE) {
/* transmit complete */
pd_transmit_complete(port, status & TCPC_REG_ALERT_TX_SUCCESS ?
TCPC_TX_COMPLETE_SUCCESS :
TCPC_TX_COMPLETE_FAILED);
}
}
void vbus0_evt(enum gpio_signal signal)
{
/* VBUS present GPIO is inverted */
usb_charger_vbus_change(0, !gpio_get_level(signal));
task_wake(TASK_ID_PD_C0);
}
void vbus_evt(enum gpio_signal signal)
{
usb_charger_vbus_change(0, gpio_get_level(signal));
task_wake(TASK_ID_PD_C0);
}
