static int gport_disconnect(struct f_gser *gser)
{
unsigned port_num;
pr_debug("%s: transport: %s f_gser: %p gserial: %p port_num: %d\n",
__func__, xport_to_str(gser->transport),
gser, &gser->port, gser->port_num);
port_num = gserial_ports[gser->port_num].client_port_num;
switch (gser->transport) {
case USB_GADGET_XPORT_TTY:
gserial_disconnect(&gser->port);
break;
case USB_GADGET_XPORT_SDIO:
gsdio_disconnect(&gser->port, port_num);
break;
case USB_GADGET_XPORT_SMD:
gsmd_disconnect(&gser->port, port_num);
break;
case USB_GADGET_XPORT_HSIC:
ghsic_ctrl_disconnect(&gser->port, port_num);
ghsic_data_disconnect(&gser->port, port_num);
break;
case USB_GADGET_XPORT_HSUART:
ghsuart_data_disconnect(&gser->port, port_num);
break;
default:
pr_err("%s: Un-supported transport:%s\n", __func__,
xport_to_str(gser->transport));
return -ENODEV;
}
return 0;
}
static int gport_disconnect(struct f_gser *gser)
{
unsigned port_num;
pr_debug("daniel.kang %s: transport:%s f_gser:%p gserial:%p port_num:%d\n",
__func__, transport_to_str(gser->transport),
gser, &gser->port, gser->port_num);
port_num = gserial_ports[gser->port_num].client_port_num;
switch (gser->transport) {
case USB_GADGET_FSERIAL_TRANSPORT_TTY:
gserial_disconnect(&gser->port);
break;
case USB_GADGET_FSERIAL_TRANSPORT_SDIO:
gsdio_disconnect(&gser->port, port_num);
break;
case USB_GADGET_FSERIAL_TRANSPORT_SMD:
gsmd_disconnect(&gser->port, port_num);
break;
default:
pr_err("%s: Un-supported transport:%s\n", __func__,
transport_to_str(gser->transport));
return -ENODEV;
}
return 0;
}
static void acm_disable(struct usb_function *f)
{
struct f_acm *acm = func_to_acm(f);
struct usb_composite_dev *cdev = f->config->cdev;
DBG(cdev, "acm ttyGS%d deactivated\n", acm->port_num);
gserial_disconnect(&acm->port);
usb_ep_disable(acm->notify);
acm->notify->driver_data = NULL;
}
static int acm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
{
struct f_acm *acm = func_to_acm(f);
struct usb_composite_dev *cdev = f->config->cdev;
/* we know alt == 0, so this is an activation or a reset */
if (intf == acm->ctrl_id) {
if (acm->notify->driver_data) {
VDBG(cdev, "reset acm control interface %d\n", intf);
usb_ep_disable(acm->notify);
}
if (!acm->notify->desc)
if (config_ep_by_speed(cdev->gadget, f, acm->notify))
return -EINVAL;
usb_ep_enable(acm->notify);
acm->notify->driver_data = acm;
} else if (intf == acm->data_id) {
if (acm->port.in->driver_data) {
DBG(cdev, "reset acm ttyGS%d\n", acm->port_num);
gserial_disconnect(&acm->port);
}
if (!acm->port.in->desc || !acm->port.out->desc) {
DBG(cdev, "activate acm ttyGS%d\n", acm->port_num);
if (config_ep_by_speed(cdev->gadget, f,
acm->port.in) ||
config_ep_by_speed(cdev->gadget, f,
acm->port.out)) {
acm->port.in->desc = NULL;
acm->port.out->desc = NULL;
return -EINVAL;
}
}
gserial_connect(&acm->port, acm->port_num);
} else
return -EINVAL;
return 0;
}
