int usb_assign_descriptors(struct usb_function *f,
struct usb_descriptor_header **fs,
struct usb_descriptor_header **hs,
struct usb_descriptor_header **ss)
{
struct usb_gadget *g = f->config->cdev->gadget;
if (fs) {
f->fs_descriptors = usb_copy_descriptors(fs);
if (!f->fs_descriptors)
goto err;
}
if (hs && gadget_is_dualspeed(g)) {
f->hs_descriptors = usb_copy_descriptors(hs);
if (!f->hs_descriptors)
goto err;
}
if (ss && gadget_is_superspeed(g)) {
f->ss_descriptors = usb_copy_descriptors(ss);
if (!f->ss_descriptors)
goto err;
}
return 0;
err:
usb_free_all_descriptors(f);
return -ENOMEM;
}
/* peak (theoretical) bulk transfer rate in bits-per-second */
static unsigned int bitrate(struct usb_gadget *g)
{
if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
return 13 * 1024 * 8 * 1000 * 8;
else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
return 13 * 512 * 8 * 1000 * 8;
else
return 19 * 64 * 1 * 1000 * 8;
}
/* Maxpacket and other transfer characteristics vary by speed. */
static __maybe_unused struct usb_endpoint_descriptor *
fsg_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs,
struct usb_endpoint_descriptor *hs,
struct usb_endpoint_descriptor *ss)
{
if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
return ss;
else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
return hs;
return fs;
}
static void
gser_unbind(struct usb_configuration *c, struct usb_function *f)
{
#ifdef CONFIG_MODEM_SUPPORT
struct f_gser *gser = func_to_gser(f);
#endif
if (gadget_is_dualspeed(c->cdev->gadget))
usb_free_descriptors(f->hs_descriptors);
if (gadget_is_superspeed(c->cdev->gadget))
usb_free_descriptors(f->ss_descriptors);
usb_free_descriptors(f->descriptors);
#ifdef CONFIG_MODEM_SUPPORT
gs_free_req(gser->notify, gser->notify_req);
#endif
kfree(func_to_gser(f));
}
/**
* config_ep_by_speed() - configures the given endpoint
* according to gadget speed.
* @g: pointer to the gadget
* @f: usb function
* @_ep: the endpoint to configure
*
* Return: error code, 0 on success
*
* This function chooses the right descriptors for a given
* endpoint according to gadget speed and saves it in the
* endpoint desc field. If the endpoint already has a descriptor
* assigned to it - overwrites it with currently corresponding
* descriptor. The endpoint maxpacket field is updated according
* to the chosen descriptor.
* Note: the supplied function should hold all the descriptors
* for supported speeds
*/
int config_ep_by_speed(struct usb_gadget *g,
struct usb_function *f,
struct usb_ep *_ep)
{
struct usb_composite_dev *cdev;
struct usb_endpoint_descriptor *chosen_desc = NULL;
struct usb_descriptor_header **speed_desc = NULL;
struct usb_ss_ep_comp_descriptor *comp_desc = NULL;
int want_comp_desc = 0;
struct usb_descriptor_header **d_spd; /* cursor for speed desc */
if (!g || !f || !_ep)
return -EIO;
cdev = get_gadget_data(g);
/* select desired speed */
switch (g->speed) {
case USB_SPEED_SUPER:
if (gadget_is_superspeed(g)) {
speed_desc = f->ss_descriptors;
want_comp_desc = 1;
break;
}
/* else: Fall trough */
case USB_SPEED_HIGH:
if (gadget_is_dualspeed(g)) {
speed_desc = f->hs_descriptors;
break;
}
/* else: fall through */
default:
speed_desc = f->fs_descriptors;
}
/* find descriptors */
for_each_ep_desc(speed_desc, d_spd) {
chosen_desc = (struct usb_endpoint_descriptor *)*d_spd;
if (chosen_desc->bEndpointAddress == _ep->address)
goto ep_found;
}
static void
gser_unbind(struct usb_configuration *c, struct usb_function *f)
{
#ifdef CONFIG_MODEM_SUPPORT
struct f_gser *gser = func_to_gser(f);
#endif
#ifdef FEATURE_PANTECH_MODEM_REOPEN_DELAY
//tarial bug fix [execute work queue fail after changing usb mode]
cancel_delayed_work_sync(&gser->connect_work);
#endif
if (gadget_is_dualspeed(c->cdev->gadget))
usb_free_descriptors(f->hs_descriptors);
if (gadget_is_superspeed(c->cdev->gadget))
usb_free_descriptors(f->ss_descriptors);
usb_free_descriptors(f->descriptors);
#ifdef CONFIG_MODEM_SUPPORT
gs_free_req(gser->notify, gser->notify_req);
#endif
kfree(func_to_gser(f));
}
int config_ep_by_speed(struct usb_gadget *g,
struct usb_function *f,
struct usb_ep *_ep)
{
struct usb_composite_dev *cdev = get_gadget_data(g);
struct usb_endpoint_descriptor *chosen_desc = NULL;
struct usb_descriptor_header **speed_desc = NULL;
struct usb_ss_ep_comp_descriptor *comp_desc = NULL;
int want_comp_desc = 0;
struct usb_descriptor_header **d_spd;
if (!g || !f || !_ep)
return -EIO;
switch (g->speed) {
case USB_SPEED_SUPER:
if (gadget_is_superspeed(g)) {
speed_desc = f->ss_descriptors;
want_comp_desc = 1;
break;
}
case USB_SPEED_HIGH:
if (gadget_is_dualspeed(g)) {
speed_desc = f->hs_descriptors;
break;
}
default:
speed_desc = f->fs_descriptors;
}
for_each_ep_desc(speed_desc, d_spd) {
chosen_desc = (struct usb_endpoint_descriptor *)*d_spd;
if (chosen_desc->bEndpointAddress == _ep->address)
goto ep_found;
}
static int
gser_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
struct f_gser *gser = func_to_gser(f);
int status;
struct usb_ep *ep;
/* allocate instance-specific interface IDs */
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
gser->data_id = status;
gser_interface_desc.bInterfaceNumber = status;
status = -ENODEV;
/* allocate instance-specific endpoints */
ep = usb_ep_autoconfig(cdev->gadget, &gser_fs_in_desc);
if (!ep)
goto fail;
gser->port.in = ep;
ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &gser_fs_out_desc);
if (!ep)
goto fail;
gser->port.out = ep;
ep->driver_data = cdev; /* claim */
#ifdef CONFIG_MODEM_SUPPORT
ep = usb_ep_autoconfig(cdev->gadget, &gser_fs_notify_desc);
if (!ep)
goto fail;
gser->notify = ep;
ep->driver_data = cdev; /* claim */
/* allocate notification */
gser->notify_req = gs_alloc_req(ep,
sizeof(struct usb_cdc_notification) + 2,
GFP_KERNEL);
if (!gser->notify_req)
goto fail;
gser->notify_req->complete = gser_notify_complete;
gser->notify_req->context = gser;
#endif
/* copy descriptors, and track endpoint copies */
f->descriptors = usb_copy_descriptors(gser_fs_function);
if (!f->descriptors)
goto fail;
/* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
* both speeds
*/
if (gadget_is_dualspeed(c->cdev->gadget)) {
gser_hs_in_desc.bEndpointAddress =
gser_fs_in_desc.bEndpointAddress;
gser_hs_out_desc.bEndpointAddress =
gser_fs_out_desc.bEndpointAddress;
#ifdef CONFIG_MODEM_SUPPORT
gser_hs_notify_desc.bEndpointAddress =
gser_fs_notify_desc.bEndpointAddress;
#endif
/* copy descriptors, and track endpoint copies */
f->hs_descriptors = usb_copy_descriptors(gser_hs_function);
if (!f->hs_descriptors)
goto fail;
}
if (gadget_is_superspeed(c->cdev->gadget)) {
gser_ss_in_desc.bEndpointAddress =
gser_fs_in_desc.bEndpointAddress;
gser_ss_out_desc.bEndpointAddress =
gser_fs_out_desc.bEndpointAddress;
/* copy descriptors, and track endpoint copies */
f->ss_descriptors = usb_copy_descriptors(gser_ss_function);
if (!f->ss_descriptors)
goto fail;
}
DBG(cdev, "generic ttyGS%d: %s speed IN/%s OUT/%s\n",
gser->port_num,
gadget_is_superspeed(c->cdev->gadget) ? "super" :
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
gser->port.in->name, gser->port.out->name);
return 0;
fail:
if (f->descriptors)
usb_free_descriptors(f->descriptors);
#ifdef CONFIG_MODEM_SUPPORT
if (gser->notify_req)
gs_free_req(gser->notify, gser->notify_req);
/* we might as well release our claims on endpoints */
if (gser->notify)
gser->notify->driver_data = NULL;
#endif
/* we might as well release our claims on endpoints */
if (gser->port.out)
gser->port.out->driver_data = NULL;
if (gser->port.in)
gser->port.in->driver_data = NULL;
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
}
static int __init
uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
struct uvc_device *uvc = to_uvc(f);
unsigned int max_packet_mult;
unsigned int max_packet_size;
struct usb_ep *ep;
int ret = -EINVAL;
INFO(cdev, "uvc_function_bind\n");
/* Sanity check the streaming endpoint module parameters.
*/
streaming_interval = clamp(streaming_interval, 1U, 16U);
streaming_maxpacket = clamp(streaming_maxpacket, 1U, 3072U);
streaming_maxburst = min(streaming_maxburst, 15U);
/* Fill in the FS/HS/SS Video Streaming specific descriptors from the
* module parameters.
*
* NOTE: We assume that the user knows what they are doing and won't
* give parameters that their UDC doesn't support.
*/
if (streaming_maxpacket <= 1024) {
max_packet_mult = 1;
max_packet_size = streaming_maxpacket;
} else if (streaming_maxpacket <= 2048) {
max_packet_mult = 2;
max_packet_size = streaming_maxpacket / 2;
} else {
max_packet_mult = 3;
max_packet_size = streaming_maxpacket / 3;
}
uvc_fs_streaming_ep.wMaxPacketSize = min(streaming_maxpacket, 1023U);
uvc_fs_streaming_ep.bInterval = streaming_interval;
uvc_hs_streaming_ep.wMaxPacketSize = max_packet_size;
uvc_hs_streaming_ep.wMaxPacketSize |= ((max_packet_mult - 1) << 11);
uvc_hs_streaming_ep.bInterval = streaming_interval;
uvc_ss_streaming_ep.wMaxPacketSize = max_packet_size;
uvc_ss_streaming_ep.bInterval = streaming_interval;
uvc_ss_streaming_comp.bmAttributes = max_packet_mult - 1;
uvc_ss_streaming_comp.bMaxBurst = streaming_maxburst;
uvc_ss_streaming_comp.wBytesPerInterval =
max_packet_size * max_packet_mult * streaming_maxburst;
/* Allocate endpoints. */
ep = usb_ep_autoconfig(cdev->gadget, &uvc_control_ep);
if (!ep) {
INFO(cdev, "Unable to allocate control EP\n");
goto error;
}
uvc->control_ep = ep;
ep->driver_data = uvc;
if (gadget_is_superspeed(c->cdev->gadget))
ep = usb_ep_autoconfig_ss(cdev->gadget, &uvc_ss_streaming_ep,
&uvc_ss_streaming_comp);
else if (gadget_is_dualspeed(cdev->gadget))
ep = usb_ep_autoconfig(cdev->gadget, &uvc_hs_streaming_ep);
else
ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep);
if (!ep) {
INFO(cdev, "Unable to allocate streaming EP\n");
goto error;
}
uvc->video.ep = ep;
ep->driver_data = uvc;
uvc_fs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
uvc_ss_streaming_ep.bEndpointAddress = uvc->video.ep->address;
/* Allocate interface IDs. */
if ((ret = usb_interface_id(c, f)) < 0)
goto error;
uvc_iad.bFirstInterface = ret;
uvc_control_intf.bInterfaceNumber = ret;
uvc->control_intf = ret;
if ((ret = usb_interface_id(c, f)) < 0)
goto error;
uvc_streaming_intf_alt0.bInterfaceNumber = ret;
uvc_streaming_intf_alt1.bInterfaceNumber = ret;
uvc->streaming_intf = ret;
/* Copy descriptors */
f->fs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_FULL);
if (gadget_is_dualspeed(cdev->gadget))
f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);
if (gadget_is_superspeed(c->cdev->gadget))
f->ss_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_SUPER);
/* Preallocate control endpoint request. */
uvc->control_req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);
uvc->control_buf = kmalloc(UVC_MAX_REQUEST_SIZE, GFP_KERNEL);
if (uvc->control_req == NULL || uvc->control_buf == NULL) {
ret = -ENOMEM;
goto error;
}
uvc->control_req->buf = uvc->control_buf;
uvc->control_req->complete = uvc_function_ep0_complete;
uvc->control_req->context = uvc;
/* Avoid letting this gadget enumerate until the userspace server is
* active.
*/
if ((ret = usb_function_deactivate(f)) < 0)
goto error;
if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {
printk(KERN_INFO "v4l2_device_register failed\n");
goto error;
}
/* Initialise video. */
ret = uvc_video_init(&uvc->video);
if (ret < 0)
goto error;
/* Register a V4L2 device. */
ret = uvc_register_video(uvc);
if (ret < 0) {
printk(KERN_INFO "Unable to register video device\n");
goto error;
}
return 0;
error:
v4l2_device_unregister(&uvc->v4l2_dev);
if (uvc->vdev)
video_device_release(uvc->vdev);
if (uvc->control_ep)
uvc->control_ep->driver_data = NULL;
if (uvc->video.ep)
uvc->video.ep->driver_data = NULL;
if (uvc->control_req) {
usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
kfree(uvc->control_buf);
}
usb_free_all_descriptors(f);
return ret;
}
static int
uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
struct uvc_device *uvc = to_uvc(f);
struct usb_string *us;
unsigned int max_packet_mult;
unsigned int max_packet_size;
struct usb_ep *ep;
struct f_uvc_opts *opts;
int ret = -EINVAL;
INFO(cdev, "uvc_function_bind\n");
opts = fi_to_f_uvc_opts(f->fi);
/* Sanity check the streaming endpoint module parameters.
*/
opts->streaming_interval = clamp(opts->streaming_interval, 1U, 16U);
opts->streaming_maxpacket = clamp(opts->streaming_maxpacket, 1U, 3072U);
opts->streaming_maxburst = min(opts->streaming_maxburst, 15U);
/* For SS, wMaxPacketSize has to be 1024 if bMaxBurst is not 0 */
if (opts->streaming_maxburst &&
(opts->streaming_maxpacket % 1024) != 0) {
opts->streaming_maxpacket = roundup(opts->streaming_maxpacket, 1024);
INFO(cdev, "overriding streaming_maxpacket to %d\n",
opts->streaming_maxpacket);
}
/* Fill in the FS/HS/SS Video Streaming specific descriptors from the
* module parameters.
*
* NOTE: We assume that the user knows what they are doing and won't
* give parameters that their UDC doesn't support.
*/
if (opts->streaming_maxpacket <= 1024) {
max_packet_mult = 1;
max_packet_size = opts->streaming_maxpacket;
} else if (opts->streaming_maxpacket <= 2048) {
max_packet_mult = 2;
max_packet_size = opts->streaming_maxpacket / 2;
} else {
max_packet_mult = 3;
max_packet_size = opts->streaming_maxpacket / 3;
}
uvc_fs_streaming_ep.wMaxPacketSize =
cpu_to_le16(min(opts->streaming_maxpacket, 1023U));
uvc_fs_streaming_ep.bInterval = opts->streaming_interval;
uvc_hs_streaming_ep.wMaxPacketSize =
cpu_to_le16(max_packet_size | ((max_packet_mult - 1) << 11));
uvc_hs_streaming_ep.bInterval = opts->streaming_interval;
uvc_ss_streaming_ep.wMaxPacketSize = cpu_to_le16(max_packet_size);
uvc_ss_streaming_ep.bInterval = opts->streaming_interval;
uvc_ss_streaming_comp.bmAttributes = max_packet_mult - 1;
uvc_ss_streaming_comp.bMaxBurst = opts->streaming_maxburst;
uvc_ss_streaming_comp.wBytesPerInterval =
cpu_to_le16(max_packet_size * max_packet_mult *
(opts->streaming_maxburst + 1));
/* Allocate endpoints. */
ep = usb_ep_autoconfig(cdev->gadget, &uvc_control_ep);
if (!ep) {
INFO(cdev, "Unable to allocate control EP\n");
goto error;
}
uvc->control_ep = ep;
if (gadget_is_superspeed(c->cdev->gadget))
ep = usb_ep_autoconfig_ss(cdev->gadget, &uvc_ss_streaming_ep,
&uvc_ss_streaming_comp);
else if (gadget_is_dualspeed(cdev->gadget))
ep = usb_ep_autoconfig(cdev->gadget, &uvc_hs_streaming_ep);
else
ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep);
if (!ep) {
INFO(cdev, "Unable to allocate streaming EP\n");
goto error;
}
uvc->video.ep = ep;
uvc_fs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
uvc_ss_streaming_ep.bEndpointAddress = uvc->video.ep->address;
us = usb_gstrings_attach(cdev, uvc_function_strings,
ARRAY_SIZE(uvc_en_us_strings));
if (IS_ERR(us)) {
ret = PTR_ERR(us);
goto error;
}
uvc_iad.iFunction = us[UVC_STRING_CONTROL_IDX].id;
uvc_control_intf.iInterface = us[UVC_STRING_CONTROL_IDX].id;
ret = us[UVC_STRING_STREAMING_IDX].id;
uvc_streaming_intf_alt0.iInterface = ret;
uvc_streaming_intf_alt1.iInterface = ret;
/* Allocate interface IDs. */
if ((ret = usb_interface_id(c, f)) < 0)
goto error;
uvc_iad.bFirstInterface = ret;
uvc_control_intf.bInterfaceNumber = ret;
uvc->control_intf = ret;
if ((ret = usb_interface_id(c, f)) < 0)
goto error;
uvc_streaming_intf_alt0.bInterfaceNumber = ret;
uvc_streaming_intf_alt1.bInterfaceNumber = ret;
uvc->streaming_intf = ret;
/* Copy descriptors */
f->fs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_FULL);
if (IS_ERR(f->fs_descriptors)) {
ret = PTR_ERR(f->fs_descriptors);
f->fs_descriptors = NULL;
goto error;
}
if (gadget_is_dualspeed(cdev->gadget)) {
f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);
if (IS_ERR(f->hs_descriptors)) {
ret = PTR_ERR(f->hs_descriptors);
f->hs_descriptors = NULL;
goto error;
}
}
if (gadget_is_superspeed(c->cdev->gadget)) {
f->ss_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_SUPER);
if (IS_ERR(f->ss_descriptors)) {
ret = PTR_ERR(f->ss_descriptors);
f->ss_descriptors = NULL;
goto error;
}
}
/* Preallocate control endpoint request. */
uvc->control_req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);
uvc->control_buf = kmalloc(UVC_MAX_REQUEST_SIZE, GFP_KERNEL);
if (uvc->control_req == NULL || uvc->control_buf == NULL) {
ret = -ENOMEM;
goto error;
}
uvc->control_req->buf = uvc->control_buf;
uvc->control_req->complete = uvc_function_ep0_complete;
uvc->control_req->context = uvc;
if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {
printk(KERN_INFO "v4l2_device_register failed\n");
goto error;
}
/* Initialise video. */
ret = uvcg_video_init(&uvc->video);
if (ret < 0)
goto error;
/* Register a V4L2 device. */
ret = uvc_register_video(uvc);
if (ret < 0) {
printk(KERN_INFO "Unable to register video device\n");
goto error;
}
return 0;
error:
v4l2_device_unregister(&uvc->v4l2_dev);
if (uvc->control_req)
usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
kfree(uvc->control_buf);
usb_free_all_descriptors(f);
return ret;
}
static int
rndis_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
struct f_rndis *rndis = func_to_rndis(f);
int status;
struct usb_ep *ep;
/* allocate instance-specific interface IDs */
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
rndis->ctrl_id = status;
rndis_iad_descriptor.bFirstInterface = status;
rndis_control_intf.bInterfaceNumber = status;
rndis_union_desc.bMasterInterface0 = status;
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
rndis->data_id = status;
rndis_data_intf.bInterfaceNumber = status;
rndis_union_desc.bSlaveInterface0 = status;
status = -ENODEV;
/* allocate instance-specific endpoints */
ep = usb_ep_autoconfig(cdev->gadget, &fs_in_desc);
if (!ep)
goto fail;
rndis->port.in_ep = ep;
ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &fs_out_desc);
if (!ep)
goto fail;
rndis->port.out_ep = ep;
ep->driver_data = cdev; /* claim */
/* NOTE: a status/notification endpoint is, strictly speaking,
* optional. We don't treat it that way though! It's simpler,
* and some newer profiles don't treat it as optional.
*/
ep = usb_ep_autoconfig(cdev->gadget, &fs_notify_desc);
if (!ep)
goto fail;
rndis->notify = ep;
ep->driver_data = cdev; /* claim */
status = -ENOMEM;
/* allocate notification request and buffer */
rndis->notify_req = usb_ep_alloc_request(ep, GFP_KERNEL);
if (!rndis->notify_req)
goto fail;
rndis->notify_req->buf = kmalloc(STATUS_BYTECOUNT, GFP_KERNEL);
if (!rndis->notify_req->buf)
goto fail;
rndis->notify_req->length = STATUS_BYTECOUNT;
rndis->notify_req->context = rndis;
rndis->notify_req->complete = rndis_response_complete;
/* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
* both speeds
*/
hs_in_desc.bEndpointAddress = fs_in_desc.bEndpointAddress;
hs_out_desc.bEndpointAddress = fs_out_desc.bEndpointAddress;
hs_notify_desc.bEndpointAddress = fs_notify_desc.bEndpointAddress;
ss_in_desc.bEndpointAddress = fs_in_desc.bEndpointAddress;
ss_out_desc.bEndpointAddress = fs_out_desc.bEndpointAddress;
ss_notify_desc.bEndpointAddress = fs_notify_desc.bEndpointAddress;
status = usb_assign_descriptors(f, eth_fs_function, eth_hs_function,
eth_ss_function);
if (status)
goto fail;
rndis->port.open = rndis_open;
rndis->port.close = rndis_close;
status = rndis_register(rndis_response_available, rndis);
if (status < 0)
goto fail;
rndis->config = status;
rndis_set_param_medium(rndis->config, RNDIS_MEDIUM_802_3, 0);
rndis_set_host_mac(rndis->config, rndis->ethaddr);
rndis_set_max_pkt_xfer(rndis->config, rndis_ul_max_pkt_per_xfer);
if (rndis->manufacturer && rndis->vendorID &&
rndis_set_param_vendor(rndis->config, rndis->vendorID,
rndis->manufacturer))
goto fail;
/* NOTE: all that is done without knowing or caring about
* the network link ... which is unavailable to this code
* until we're activated via set_alt().
*/
DBG(cdev, "RNDIS: %s speed IN/%s OUT/%s NOTIFY/%s\n",
gadget_is_superspeed(c->cdev->gadget) ? "super" :
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
rndis->port.in_ep->name, rndis->port.out_ep->name,
rndis->notify->name);
return 0;
fail:
usb_free_all_descriptors(f);
if (rndis->notify_req) {
kfree(rndis->notify_req->buf);
usb_ep_free_request(rndis->notify, rndis->notify_req);
}
/* we might as well release our claims on endpoints */
if (rndis->notify)
rndis->notify->driver_data = NULL;
if (rndis->port.out_ep)
rndis->port.out_ep->driver_data = NULL;
if (rndis->port.in_ep)
rndis->port.in_ep->driver_data = NULL;
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
}
static int __init
uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
struct uvc_device *uvc = to_uvc(f);
struct usb_ep *ep;
int ret = -EINVAL;
INFO(cdev, "uvc_function_bind\n");
/* sanity check the streaming endpoint module parameters */
if (streaming_interval < 1)
streaming_interval = 1;
if (streaming_interval > 16)
streaming_interval = 16;
if (streaming_mult > 2)
streaming_mult = 2;
if (streaming_maxburst > 15)
streaming_maxburst = 15;
/*
* fill in the FS video streaming specific descriptors from the
* module parameters
*/
uvc_fs_streaming_ep.wMaxPacketSize = streaming_maxpacket > 1023 ?
1023 : streaming_maxpacket;
uvc_fs_streaming_ep.bInterval = streaming_interval;
/* Allocate endpoints. */
ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_control_ep);
if (!ep) {
INFO(cdev, "Unable to allocate control EP\n");
goto error;
}
uvc->control_ep = ep;
ep->driver_data = uvc;
ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep);
if (!ep) {
INFO(cdev, "Unable to allocate streaming EP\n");
goto error;
}
uvc->video.ep = ep;
ep->driver_data = uvc;
/* Allocate interface IDs. */
if ((ret = usb_interface_id(c, f)) < 0)
goto error;
uvc_iad.bFirstInterface = ret;
uvc_control_intf.bInterfaceNumber = ret;
uvc->control_intf = ret;
if ((ret = usb_interface_id(c, f)) < 0)
goto error;
uvc_streaming_intf_alt0.bInterfaceNumber = ret;
uvc_streaming_intf_alt1.bInterfaceNumber = ret;
uvc->streaming_intf = ret;
/* sanity check the streaming endpoint module parameters */
if (streaming_maxpacket > 1024)
streaming_maxpacket = 1024;
/* Copy descriptors for FS. */
f->descriptors = uvc_copy_descriptors(uvc, USB_SPEED_FULL);
/* support high speed hardware */
if (gadget_is_dualspeed(cdev->gadget)) {
/*
* Fill in the HS descriptors from the module parameters for the
* Video Streaming endpoint.
* NOTE: We assume that the user knows what they are doing and
* won't give parameters that their UDC doesn't support.
*/
uvc_hs_streaming_ep.wMaxPacketSize = streaming_maxpacket;
uvc_hs_streaming_ep.wMaxPacketSize |= streaming_mult << 11;
uvc_hs_streaming_ep.bInterval = streaming_interval;
uvc_hs_streaming_ep.bEndpointAddress =
uvc_fs_streaming_ep.bEndpointAddress;
/* Copy descriptors. */
f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);
}
/* support super speed hardware */
if (gadget_is_superspeed(c->cdev->gadget)) {
/*
* Fill in the SS descriptors from the module parameters for the
* Video Streaming endpoint.
* NOTE: We assume that the user knows what they are doing and
* won't give parameters that their UDC doesn't support.
*/
uvc_ss_streaming_ep.wMaxPacketSize = streaming_maxpacket;
uvc_ss_streaming_ep.bInterval = streaming_interval;
uvc_ss_streaming_comp.bmAttributes = streaming_mult;
uvc_ss_streaming_comp.bMaxBurst = streaming_maxburst;
uvc_ss_streaming_comp.wBytesPerInterval =
streaming_maxpacket * (streaming_mult + 1) *
(streaming_maxburst + 1);
uvc_ss_streaming_ep.bEndpointAddress =
uvc_fs_streaming_ep.bEndpointAddress;
/* Copy descriptors. */
f->ss_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_SUPER);
}
/* Preallocate control endpoint request. */
uvc->control_req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);
uvc->control_buf = kmalloc(UVC_MAX_REQUEST_SIZE, GFP_KERNEL);
if (uvc->control_req == NULL || uvc->control_buf == NULL) {
ret = -ENOMEM;
goto error;
}
uvc->control_req->buf = uvc->control_buf;
uvc->control_req->complete = uvc_function_ep0_complete;
uvc->control_req->context = uvc;
/* Avoid letting this gadget enumerate until the userspace server is
* active.
*/
if ((ret = usb_function_deactivate(f)) < 0)
goto error;
/* Initialise video. */
ret = uvc_video_init(&uvc->video);
if (ret < 0)
goto error;
/* Register a V4L2 device. */
ret = uvc_register_video(uvc);
if (ret < 0) {
printk(KERN_INFO "Unable to register video device\n");
goto error;
}
return 0;
error:
uvc_function_unbind(c, f);
return ret;
}
/* ACM function driver setup/binding */
static int
acm_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
struct f_acm *acm = func_to_acm(f);
struct usb_string *us;
int status;
struct usb_ep *ep;
acm_string_defs[ACM_CTRL_IDX].s = acm->ctrl_string_buf;
acm_string_defs[ACM_DATA_IDX].s = acm->data_string_buf;
acm_string_defs[ACM_IAD_IDX].s = acm->iad_string_buf;
/* maybe allocate device-global string IDs, and patch descriptors */
us = usb_gstrings_attach(cdev, acm_strings,
ARRAY_SIZE(acm_string_defs));
if (IS_ERR(us))
return PTR_ERR(us);
acm_control_interface_desc.iInterface = us[ACM_CTRL_IDX].id;
acm_data_interface_desc.iInterface = us[ACM_DATA_IDX].id;
acm_iad_descriptor.iFunction = us[ACM_IAD_IDX].id;
acm_iad_descriptor.bFunctionProtocol = acm->iad_proto;
acm_control_interface_desc.bInterfaceProtocol = acm->ctrl_intf_proto;
/* allocate instance-specific interface IDs, and patch descriptors */
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
acm->ctrl_id = status;
acm_iad_descriptor.bFirstInterface = status;
acm_control_interface_desc.bInterfaceNumber = status;
acm_union_desc .bMasterInterface0 = status;
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
acm->data_id = status;
acm_data_interface_desc.bInterfaceNumber = status;
acm_union_desc.bSlaveInterface0 = status;
acm_call_mgmt_descriptor.bDataInterface = status;
status = -ENODEV;
/* allocate instance-specific endpoints */
ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_in_desc);
if (!ep)
goto fail;
acm->port.in = ep;
ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_out_desc);
if (!ep)
goto fail;
acm->port.out = ep;
ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_notify_desc);
if (!ep)
goto fail;
acm->notify = ep;
ep->driver_data = cdev; /* claim */
/* allocate notification */
acm->notify_req = gs_alloc_req(ep,
sizeof(struct usb_cdc_notification) + 2,
GFP_KERNEL);
if (!acm->notify_req)
goto fail;
acm->notify_req->complete = acm_cdc_notify_complete;
acm->notify_req->context = acm;
/* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
* both speeds
*/
acm_hs_in_desc.bEndpointAddress = acm_fs_in_desc.bEndpointAddress;
acm_hs_out_desc.bEndpointAddress = acm_fs_out_desc.bEndpointAddress;
acm_hs_notify_desc.bEndpointAddress =
acm_fs_notify_desc.bEndpointAddress;
acm_ss_in_desc.bEndpointAddress = acm_fs_in_desc.bEndpointAddress;
acm_ss_out_desc.bEndpointAddress = acm_fs_out_desc.bEndpointAddress;
status = usb_assign_descriptors(f, acm_fs_function, acm_hs_function,
acm_ss_function);
if (status)
goto fail;
DBG(cdev, "acm ttyGS%d: %s speed IN/%s OUT/%s NOTIFY/%s\n",
acm->port_num,
gadget_is_superspeed(c->cdev->gadget) ? "super" :
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
acm->port.in->name, acm->port.out->name,
acm->notify->name);
return 0;
fail:
if (acm->notify_req) {
gs_free_req(acm->notify, acm->notify_req);
acm->notify_req = NULL;
}
/* we might as well release our claims on endpoints */
if (acm->notify)
acm->notify->driver_data = NULL;
if (acm->port.out)
acm->port.out->driver_data = NULL;
if (acm->port.in)
acm->port.in->driver_data = NULL;
ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status);
return status;
}
/* ACM function driver setup/binding */
static int
acm_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
struct f_acm *acm = func_to_acm(f);
struct usb_string *us;
int status;
struct usb_ep *ep;
D("+\n");
/* REVISIT might want instance-specific strings to help
* distinguish instances ...
*/
/* maybe allocate device-global string IDs, and patch descriptors */
us = usb_gstrings_attach(cdev, acm_strings,
ARRAY_SIZE(acm_string_defs));
if (IS_ERR(us))
return PTR_ERR(us);
acm_control_interface_desc.iInterface = us[ACM_CTRL_IDX].id;
acm_data_interface_desc.iInterface = us[ACM_DATA_IDX].id;
acm_iad_descriptor.iFunction = us[ACM_IAD_IDX].id;
/* allocate instance-specific interface IDs, and patch descriptors */
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
D("interface id: %d\n", status);
if (g_acm_is_single_interface) {
D("single interface\n");
acm->ctrl_id = acm->data_id = status;
acm_single_interface_desc.bInterfaceNumber = status;
acm_call_mgmt_descriptor.bDataInterface = status;
} else {
acm->ctrl_id = (u8)status;
acm_iad_descriptor.bFirstInterface = status;
acm_control_interface_desc.bInterfaceNumber = status;
acm_union_desc .bMasterInterface0 = status;
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
acm->data_id = status;
acm_data_interface_desc.bInterfaceNumber = status;
acm_union_desc.bSlaveInterface0 = status;
acm_call_mgmt_descriptor.bDataInterface = status;
}
bsp_usb_add_setup_dev((unsigned)acm->data_id);
status = -ENODEV;
/* allocate instance-specific endpoints */
D("to ep autoconfig\n");
ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_in_desc);
if (!ep)
goto fail;
acm->port.in = ep;
ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_out_desc);
if (!ep)
goto fail;
acm->port.out = ep;
ep->driver_data = cdev; /* claim */
if (acm->support_notify) {
ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_notify_desc);
if (!ep)
goto fail;
acm->notify = ep;
ep->driver_data = cdev; /* claim */
/* allocate notification */
acm->notify_req = gs_acm_cdev_alloc_req(ep,
sizeof(struct usb_cdc_notification) + 2,
GFP_KERNEL);
if (!acm->notify_req)
goto fail;
acm->notify_req->complete = acm_cdc_notify_complete;
acm->notify_req->context = acm;
} else {
acm->notify = NULL;
acm->notify_req = NULL;
}
/* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
* both speeds
*/
D("do desc\n");
acm_hs_in_desc.bEndpointAddress = acm_fs_in_desc.bEndpointAddress;
acm_hs_out_desc.bEndpointAddress = acm_fs_out_desc.bEndpointAddress;
if (acm->support_notify)
acm_hs_notify_desc.bEndpointAddress =
acm_fs_notify_desc.bEndpointAddress;
acm_ss_in_desc.bEndpointAddress = acm_fs_in_desc.bEndpointAddress;
acm_ss_out_desc.bEndpointAddress = acm_fs_out_desc.bEndpointAddress;
D("to assign desc\n");
acm_set_config_vendor(acm);
status = usb_assign_descriptors(f, acm_fs_cur_function, acm_hs_cur_function,
acm_ss_cur_function);
if (status)
goto fail;
DBG(cdev, "acm_cdev%d: %s speed IN/%s OUT/%s NOTIFY/%s\n",
acm->port_num,
gadget_is_superspeed(c->cdev->gadget) ? "super" :
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
acm->port.in->name, acm->port.out->name,
acm->notify ? acm->notify->name : "null");
printk(KERN_INFO "acm_cdev%d: %s speed IN/%s OUT/%s NOTIFY/%s\n",
acm->port_num,
gadget_is_superspeed(c->cdev->gadget) ? "super" :
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
acm->port.in->name, acm->port.out->name,
acm->notify ? acm->notify->name : "null");
return 0;
fail:
if (acm->notify_req)
gs_acm_cdev_free_req(acm->notify, acm->notify_req);
/* we might as well release our claims on endpoints */
if (acm->notify)
acm->notify->driver_data = NULL;
if (acm->port.out)
acm->port.out->driver_data = NULL;
if (acm->port.in)
acm->port.in->driver_data = NULL;
ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status);
D("-\n");
return status;
}