C++ (Cpp) msm_dwc3_reset_dbm_ep Examples

Example #1

File: u_data_ipa.c Project: moonlightly/NX523J_kernel

/**
 * ipa_data_resume() - Initiate USB resume functionality
 * @gp: Gadget IPA port
 * @port_num: port number used by function
 *
 * It is being used to initiate USB resume functionality
 * for USB bus resume case.
 */
void ipa_data_resume(struct gadget_ipa_port *gp, u8 port_num)
{
	struct ipa_data_ch_info *port;
	unsigned long flags;
	struct usb_gadget *gadget = NULL;
	int ret;

	pr_debug("dev:%p port number:%d\n", gp, port_num);

	if (port_num >= n_ipa_ports) {
		pr_err("invalid ipa portno#%d\n", port_num);
		return;
	}

	if (!gp) {
		pr_err("data port is null\n");
		return;
	}

	port = ipa_data_ports[port_num];
	if (!port) {
		pr_err("port %u is NULL", port_num);
		return;
	}

	pr_debug("%s: resume started\n", __func__);
	spin_lock_irqsave(&port->port_lock, flags);
	gadget = port->port_usb->cdev->gadget;
	if (!gadget) {
		spin_unlock_irqrestore(&port->port_lock, flags);
		pr_err("%s(): Gadget is NULL.\n", __func__);
		return;
	}

	ret = usb_bam_register_wake_cb(port->dst_connection_idx, NULL, NULL);
	if (ret) {
		spin_unlock_irqrestore(&port->port_lock, flags);
		pr_err("%s(): Failed to register BAM wake callback.\n",
								__func__);
		return;
	}

	if (msm_dwc3_reset_ep_after_lpm(gadget)) {
		configure_fifo(port->src_bam_idx, port->port_usb->out);
		configure_fifo(port->dst_bam_idx, port->port_usb->in);
		spin_unlock_irqrestore(&port->port_lock, flags);
		msm_dwc3_reset_dbm_ep(port->port_usb->in);
		spin_lock_irqsave(&port->port_lock, flags);
		usb_bam_resume(&port->ipa_params);
	}

	spin_unlock_irqrestore(&port->port_lock, flags);
}

Example #2

File: u_bam_data.c Project: AD5GB/kernel_n5_3.10-experimental

static void bam2bam_data_resume_work(struct work_struct *w)
{
	struct bam_data_port *port =
			container_of(w, struct bam_data_port, resume_w);
	struct bam_data_ch_info *d = &port->data_ch;
	struct data_port *d_port = port->port_usb;
	struct usb_gadget *gadget = d_port->cdev->gadget;
	int ret;

	pr_debug("%s: resume work started\n", __func__);

	if (!port->is_connected) {
		pr_info("%s: Port is disconnected. Bailing out.\n", __func__);
		return;
	}

	ret = usb_bam_register_wake_cb(d->dst_connection_idx, NULL, NULL);
	if (ret) {
		pr_err("%s(): Failed to un-register BAM wake callback.\n",
			__func__);
		return;
	}

	if (d->trans == USB_GADGET_XPORT_BAM2BAM_IPA) {
		if (gadget_is_dwc3(gadget) &&
			msm_dwc3_reset_ep_after_lpm(gadget)) {
				configure_usb_data_fifo(d->src_bam_idx,
					port->port_usb->out,
					d->src_pipe_type);
				configure_usb_data_fifo(d->dst_bam_idx,
					port->port_usb->in,
					d->dst_pipe_type);
				msm_dwc3_reset_dbm_ep(port->port_usb->in);
		}
		usb_bam_resume(&d->ipa_params);
	}
}