diff --git a/drivers/usb/gadget/function/f_gsi.c b/drivers/usb/gadget/function/f_gsi.c index 206192ff99bb..80c9928e948e 100644 --- a/drivers/usb/gadget/function/f_gsi.c +++ b/drivers/usb/gadget/function/f_gsi.c @@ -36,6 +36,7 @@ MODULE_PARM_DESC(num_out_bufs, static struct workqueue_struct *ipa_usb_wq; +static void gsi_rndis_ipa_reset_trigger(struct f_gsi *rndis); static void ipa_disconnect_handler(struct gsi_data_port *d_port); static int gsi_ctrl_send_notification(struct f_gsi *gsi, enum gsi_ctrl_notify_state); @@ -553,6 +554,7 @@ static void ipa_work_handler(struct work_struct *w) struct device *dev; struct device *gad_dev; struct f_gsi *gsi; + bool block_db; event = read_event(d_port); @@ -665,7 +667,27 @@ static void ipa_work_handler(struct work_struct *w) } break; case STATE_CONNECTED: - if (event == EVT_DISCONNECTED) { + if (event == EVT_DISCONNECTED || event == EVT_HOST_NRDY) { + if (peek_event(d_port) == EVT_HOST_READY) { + read_event(d_port); + log_event_dbg("%s: NO_OP NRDY_RDY", __func__); + break; + } + + if (event == EVT_HOST_NRDY) { + log_event_dbg("%s: ST_CON_HOST_NRDY\n", + __func__); + block_db = true; + /* stop USB ringing doorbell to GSI(OUT_EP) */ + usb_gsi_ep_op(d_port->in_ep, (void *)&block_db, + GSI_EP_OP_SET_CLR_BLOCK_DBL); + gsi_rndis_ipa_reset_trigger(gsi); + usb_gsi_ep_op(d_port->in_ep, NULL, + GSI_EP_OP_ENDXFER); + usb_gsi_ep_op(d_port->out_ep, NULL, + GSI_EP_OP_ENDXFER); + } + ipa_disconnect_work_handler(d_port); d_port->sm_state = STATE_INITIALIZED; usb_gadget_autopm_put_async(d_port->gadget); @@ -1269,7 +1291,7 @@ static void gsi_rndis_open(struct f_gsi *rndis) rndis_signal_connect(rndis->params); } -void gsi_rndis_ipa_reset_trigger(struct f_gsi *rndis) +static void gsi_rndis_ipa_reset_trigger(struct f_gsi *rndis) { unsigned long flags; @@ -1301,12 +1323,11 @@ void gsi_rndis_flow_ctrl_enable(bool enable, struct rndis_params *param) d_port = &rndis->d_port; - if (enable) { - gsi_rndis_ipa_reset_trigger(rndis); - usb_gsi_ep_op(d_port->in_ep, NULL, GSI_EP_OP_ENDXFER); - usb_gsi_ep_op(d_port->out_ep, NULL, GSI_EP_OP_ENDXFER); - post_event(d_port, EVT_DISCONNECTED); + if (enable) { + log_event_dbg("%s: posting HOST_NRDY\n", __func__); + post_event(d_port, EVT_HOST_NRDY); } else { + log_event_dbg("%s: posting HOST_READY\n", __func__); post_event(d_port, EVT_HOST_READY); }