static void bcmpmu_otg_xceiv_vbus_a_invalid_handler(struct work_struct *work)
{
struct bcmpmu_otg_xceiv_data *xceiv_data =
container_of(work, struct bcmpmu_otg_xceiv_data,
bcm_otg_vbus_a_invalid_work);
dev_info(xceiv_data->dev, "A session invalid\n");
if (!bcm_hsotgctrl_get_clk_count())
bcm_hsotgctrl_en_clock(true);
/* Inform the core of session invalid level */
bcm_hsotgctrl_phy_set_vbus_stat(false);
if (xceiv_data->otg_enabled) {
/* Stop Vbus discharge */
bcmpmu_usb_set(xceiv_data->bcmpmu, BCMPMU_USB_CTRL_DISCHRG_VBUS,
0);
if (bcmpmu_otg_xceiv_check_id_gnd(xceiv_data)) {
/* Use n-1 method for ADP rise time comparison */
bcmpmu_usb_set(xceiv_data->bcmpmu,
BCMPMU_USB_CTRL_SET_ADP_COMP_METHOD, 1);
if (xceiv_data->otg_xceiver.otg_vbus_off)
schedule_delayed_work(&xceiv_data->
bcm_otg_delayed_adp_work,
msecs_to_jiffies
(T_NO_ADP_DELAY_MIN_IN_MS));
else
bcm_otg_do_adp_probe(xceiv_data);
} else if (!bcmpmu_otg_xceiv_check_id_rid_a(xceiv_data)) {
if (xceiv_data->otg_xceiver.otg_srp_reqd) {
/* Start Session End SRP timer */
xceiv_data->otg_xceiver.sess_end_srp_timer.
expires =
jiffies +
msecs_to_jiffies
(T_SESS_END_SRP_START_IN_MS);
add_timer(&xceiv_data->otg_xceiver.
sess_end_srp_timer);
} else
bcm_otg_do_adp_sense(xceiv_data);
}
} else {
bool id_default_host = false;
id_default_host =
bcmpmu_otg_xceiv_check_id_gnd(xceiv_data) ||
bcmpmu_otg_xceiv_check_id_rid_a(xceiv_data);
if (!id_default_host) {
atomic_notifier_call_chain(&xceiv_data->otg_xceiver.
xceiver.notifier,
USB_EVENT_NONE, NULL);
}
}
}
static int bcmpmu_otg_xceiv_set_vbus_power(struct otg_transceiver *otg,
unsigned int ma)
{
struct bcmpmu_otg_xceiv_data *xceiv_data = dev_get_drvdata(otg->dev);
return bcmpmu_usb_set(xceiv_data->bcmpmu,
BCMPMU_USB_CTRL_CHRG_CURR_LMT, ma);
}
static void bcmpmu_otg_xceiv_vbus_invalid_handler(struct work_struct *work)
{
struct bcmpmu_otg_xceiv_data *xceiv_data =
container_of(work, struct bcmpmu_otg_xceiv_data,
bcm_otg_vbus_invalid_work);
dev_info(xceiv_data->dev, "Vbus invalid\n");
if (xceiv_data->otg_enabled) {
/* Need to discharge Vbus quickly to session invalid level */
bcmpmu_usb_set(xceiv_data->bcmpmu, BCMPMU_USB_CTRL_DISCHRG_VBUS,
1);
}
}
static int bcmpmu_otg_xceiv_set_otg_enable(struct otg_transceiver *otg, bool enable)
{
struct bcmpmu_otg_xceiv_data *xceiv_data = dev_get_drvdata(otg->dev);
if (!xceiv_data)
return -EINVAL;
xceiv_data->otg_enabled = enable;
bcmpmu_usb_set(xceiv_data->bcmpmu,
BCMPMU_USB_CTRL_SET_OTG_ENABLE,
enable ? 1 : 0);
return 0;
}
static int bcmpmu_otg_xceiv_set_vbus_power(struct otg_transceiver *otg, unsigned int ma)
{
struct bcmpmu_otg_xceiv_data *xceiv_data = dev_get_drvdata(otg->dev);
int ret = 0;
/* We need not make use of USB_EVENT_CHARGER event */
if (xceiv_data->usb_charger_type == PMU_USB_TYPE_SDP) {
/* Set charging current from USB stack only
* if it is SDP
*/
ret = bcmpmu_usb_set(xceiv_data->bcmpmu,
BCMPMU_USB_CTRL_CHRG_CURR_LMT, ma);
}
return ret;
}
static void bcmpmu_otg_xceiv_id_change_handler(struct work_struct *work)
{
struct bcmpmu_otg_xceiv_data *xceiv_data =
container_of(work, struct bcmpmu_otg_xceiv_data,
bcm_otg_id_status_change_work);
unsigned int new_id;
bool id_gnd = false;
bool id_rid_a = false;
bool id_rid_c = false;
dev_info(xceiv_data->dev, "ID change detected\n");
bcmpmu_usb_get(xceiv_data->bcmpmu,
BCMPMU_USB_CTRL_GET_ID_VALUE,
&new_id);
if (xceiv_data->otg_enabled) {
/* Stop any stale ADP probe/sense attempts */
bcm_otg_do_adp_probe(xceiv_data, false);
bcm_otg_do_adp_sense(xceiv_data, false);
/* Use n and n-1 comparison method */
bcmpmu_usb_set(xceiv_data->bcmpmu,
BCMPMU_USB_CTRL_SET_ADP_COMP_METHOD, 1);
}
if ((xceiv_data->prev_otg_id != new_id) ||
xceiv_data->otg_enabled) {
id_gnd = bcmpmu_otg_xceiv_check_id_gnd(xceiv_data);
id_rid_a = bcmpmu_otg_xceiv_check_id_rid_a(xceiv_data);
id_rid_c = bcmpmu_otg_xceiv_check_id_rid_c(xceiv_data);
bcm_hsotgctrl_phy_set_id_stat(!(id_gnd || id_rid_a));
atomic_notifier_call_chain(&xceiv_data->otg_xceiver.
xceiver.notifier, USB_EVENT_ID, NULL);
}
/* Update local ID copy */
xceiv_data->prev_otg_id = new_id;
}