int gport_setup(struct usb_configuration *c)
{
int ret = 0;
int port_idx;
int i;
pr_debug("%s: no_tty_ports: %u no_sdio_ports: %u"
" no_smd_ports: %u no_hsic_sports: %u no_hsuart_ports: %u nr_ports: %u\n",
__func__, no_tty_ports, no_sdio_ports, no_smd_ports,
no_hsic_sports, no_hsuart_sports, nr_ports);
if (no_tty_ports) {
for (i = 0; i < no_tty_ports; i++) {
ret = gserial_alloc_line(
&gserial_ports[i].client_port_num);
if (ret)
return ret;
}
}
if (no_sdio_ports)
ret = gsdio_setup(c->cdev->gadget, no_sdio_ports);
if (no_smd_ports)
ret = gsmd_setup(c->cdev->gadget, no_smd_ports);
if (no_hsic_sports) {
port_idx = ghsic_data_setup(no_hsic_sports, USB_GADGET_SERIAL);
if (port_idx < 0)
return port_idx;
for (i = 0; i < nr_ports; i++) {
if (gserial_ports[i].transport ==
USB_GADGET_XPORT_HSIC) {
gserial_ports[i].client_port_num = port_idx;
port_idx++;
}
}
/*clinet port num is same for data setup and ctrl setup*/
ret = ghsic_ctrl_setup(no_hsic_sports, USB_GADGET_SERIAL);
if (ret < 0)
return ret;
}
if (no_hsuart_sports) {
port_idx = ghsuart_data_setup(no_hsuart_sports,
USB_GADGET_SERIAL);
if (port_idx < 0)
return port_idx;
for (i = 0; i < nr_ports; i++) {
if (gserial_ports[i].transport ==
USB_GADGET_XPORT_HSUART) {
gserial_ports[i].client_port_num = port_idx;
port_idx++;
}
}
}
return ret;
}
static int __init acm_ms_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
int status;
void *retp;
/* set up serial link layer */
status = gserial_alloc_line(&tty_line);
if (status < 0)
return status;
/* set up mass storage function */
retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data);
if (IS_ERR(retp)) {
status = PTR_ERR(retp);
goto fail0;
}
/*
* Allocate string descriptor numbers ... note that string
* contents can be overridden by the composite_dev glue.
*/
status = usb_string_ids_tab(cdev, strings_dev);
if (status < 0)
goto fail1;
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
/* register our configuration */
status = usb_add_config(cdev, &acm_ms_config_driver, acm_ms_do_config);
if (status < 0)
goto fail1;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
DRIVER_DESC);
fsg_common_put(&fsg_common);
return 0;
/* error recovery */
fail1:
fsg_common_put(&fsg_common);
fail0:
gserial_free_line(tty_line);
return status;
}
static struct usb_function_instance *acm_alloc_instance(void)
{
struct f_serial_opts *opts;
int ret;
opts = kzalloc(sizeof(*opts), GFP_KERNEL);
if (!opts)
return ERR_PTR(-ENOMEM);
opts->func_inst.free_func_inst = acm_free_instance;
ret = gserial_alloc_line(&opts->port_num);
if (ret) {
kfree(opts);
return ERR_PTR(ret);
}
config_group_init_type_name(&opts->func_inst.group, "",
&acm_func_type);
return &opts->func_inst;
}
static struct usb_function_instance *gser_alloc_inst(void)
{
struct f_serial_opts *opts;
int ret;
opts = kzalloc(sizeof(*opts), GFP_KERNEL);
if (!opts)
return ERR_PTR(-ENOMEM);
opts->func_inst.free_func_inst = gser_free_inst;
/* Check if tty registration is handled here or not */
if (!nr_ports) {
ret = gserial_alloc_line(&opts->port_num);
if (ret) {
kfree(opts);
return ERR_PTR(ret);
}
}
config_group_init_type_name(&opts->func_inst.group, "",
&serial_func_type);
return &opts->func_inst;
}
