static void usb_charger_init(void)
{
int i;
struct charge_port_info charge_none;
/* Initialize all charge suppliers to 0 */
charge_none.voltage = USB_CHARGER_VOLTAGE_MV;
charge_none.current = 0;
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++) {
charge_manager_update_charge(CHARGE_SUPPLIER_PROPRIETARY,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_CDP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_DCP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_SDP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_OTHER,
i,
&charge_none);
#ifndef CONFIG_USB_PD_VBUS_DETECT_TCPC
/*
* Initialize VBUS supplier based on whether VBUS is present.
* For CONFIG_USB_PD_VBUS_DETECT_TCPC, usb_charger_vbus_change()
* will be called directly from TCPC alert.
*/
update_vbus_supplier(i, pd_snk_is_vbus_provided(i));
#endif
}
}
static void usb_charger_init(void)
{
int i;
struct charge_port_info charge_none;
/* Initialize all pericom charge suppliers to 0 */
charge_none.voltage = USB_CHARGER_VOLTAGE_MV;
charge_none.current = 0;
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++) {
charge_manager_update_charge(CHARGE_SUPPLIER_PROPRIETARY,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_CDP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_DCP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_SDP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_OTHER,
i,
&charge_none);
#ifndef CONFIG_USB_PD_TCPM_VBUS
/* Initialize VBUS supplier based on whether VBUS is present */
update_vbus_supplier(i, pd_snk_is_vbus_provided(i));
#endif
}
}
int pd_set_power_supply_ready(int port)
{
/* provide VBUS */
board_pd_vbus_ctrl(port, 1);
/* vbus provided or not */
return !pd_snk_is_vbus_provided(port);
}
void usb_charger_task(void)
{
int port = (task_get_current() == TASK_ID_USB_CHG_P0 ? 0 : 1);
uint32_t evt;
/* Initialize chip and enable interrupts */
pi3usb9281_init(port);
usb_charger_bc12_detect(port);
while (1) {
/* Wait for interrupt */
evt = task_wait_event(-1);
/* Interrupt from the Pericom chip, determine charger type */
if (evt & USB_CHG_EVENT_BC12)
usb_charger_bc12_detect(port);
/*
* Re-enable interrupts on pericom charger detector since the
* chip may periodically reset itself, and come back up with
* registers in default state. TODO(crosbug.com/p/33823): Fix
* these unwanted resets.
*/
if (evt & USB_CHG_EVENT_VBUS) {
pi3usb9281_enable_interrupts(port);
#ifndef CONFIG_USB_PD_TCPM_VBUS
CPRINTS("VBUS p%d %d", port,
pd_snk_is_vbus_provided(port));
#endif
}
}
}
