diff options
Diffstat (limited to 'drivers/usb/gadget/composite.c')
| -rw-r--r-- | drivers/usb/gadget/composite.c | 60 |
1 files changed, 40 insertions, 20 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 09289bb1e20f..391d169f8d07 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -36,7 +36,7 @@ */ /* big enough to hold our biggest descriptor */ -#define USB_BUFSIZ 512 +#define USB_BUFSIZ 1024 static struct usb_composite_driver *composite; @@ -85,7 +85,7 @@ MODULE_PARM_DESC(iSerialNumber, "SerialNumber string"); * This function returns the value of the function's bind(), which is * zero for success else a negative errno value. */ -int __init usb_add_function(struct usb_configuration *config, +int usb_add_function(struct usb_configuration *config, struct usb_function *function) { int value = -EINVAL; @@ -215,7 +215,7 @@ int usb_function_activate(struct usb_function *function) * Returns the interface ID which was allocated; or -ENODEV if no * more interface IDs can be allocated. */ -int __init usb_interface_id(struct usb_configuration *config, +int usb_interface_id(struct usb_configuration *config, struct usb_function *function) { unsigned id = config->next_interface_id; @@ -480,7 +480,7 @@ done: * assigns global resources including string IDs, and per-configuration * resources such as interface IDs and endpoints. */ -int __init usb_add_config(struct usb_composite_dev *cdev, +int usb_add_config(struct usb_composite_dev *cdev, struct usb_configuration *config) { int status = -EINVAL; @@ -677,7 +677,7 @@ static int get_string(struct usb_composite_dev *cdev, * ensure that for example different functions don't wrongly assign * different meanings to the same identifier. */ -int __init usb_string_id(struct usb_composite_dev *cdev) +int usb_string_id(struct usb_composite_dev *cdev) { if (cdev->next_string_id < 254) { /* string id 0 is reserved */ @@ -898,7 +898,19 @@ static void composite_disconnect(struct usb_gadget *gadget) /*-------------------------------------------------------------------------*/ -static void /* __init_or_exit */ +static ssize_t composite_show_suspended(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct usb_gadget *gadget = dev_to_usb_gadget(dev); + struct usb_composite_dev *cdev = get_gadget_data(gadget); + + return sprintf(buf, "%d\n", cdev->suspended); +} + +static DEVICE_ATTR(suspended, 0444, composite_show_suspended, NULL); + +static void composite_unbind(struct usb_gadget *gadget) { struct usb_composite_dev *cdev = get_gadget_data(gadget); @@ -944,10 +956,11 @@ composite_unbind(struct usb_gadget *gadget) } kfree(cdev); set_gadget_data(gadget, NULL); + device_remove_file(&gadget->dev, &dev_attr_suspended); composite = NULL; } -static void __init +static void string_override_one(struct usb_gadget_strings *tab, u8 id, const char *s) { struct usb_string *str = tab->strings; @@ -960,7 +973,7 @@ string_override_one(struct usb_gadget_strings *tab, u8 id, const char *s) } } -static void __init +static void string_override(struct usb_gadget_strings **tab, u8 id, const char *s) { while (*tab) { @@ -969,7 +982,7 @@ string_override(struct usb_gadget_strings **tab, u8 id, const char *s) } } -static int __init composite_bind(struct usb_gadget *gadget) +static int composite_bind(struct usb_gadget *gadget) { struct usb_composite_dev *cdev; int status = -ENOMEM; @@ -1004,6 +1017,14 @@ static int __init composite_bind(struct usb_gadget *gadget) */ usb_ep_autoconfig_reset(cdev->gadget); + /* standardized runtime overrides for device ID data */ + if (idVendor) + cdev->desc.idVendor = cpu_to_le16(idVendor); + if (idProduct) + cdev->desc.idProduct = cpu_to_le16(idProduct); + if (bcdDevice) + cdev->desc.bcdDevice = cpu_to_le16(bcdDevice); + /* composite gadget needs to assign strings for whole device (like * serial number), register function drivers, potentially update * power state and consumption, etc @@ -1015,14 +1036,6 @@ static int __init composite_bind(struct usb_gadget *gadget) cdev->desc = *composite->dev; cdev->desc.bMaxPacketSize0 = gadget->ep0->maxpacket; - /* standardized runtime overrides for device ID data */ - if (idVendor) - cdev->desc.idVendor = cpu_to_le16(idVendor); - if (idProduct) - cdev->desc.idProduct = cpu_to_le16(idProduct); - if (bcdDevice) - cdev->desc.bcdDevice = cpu_to_le16(bcdDevice); - /* strings can't be assigned before bind() allocates the * releavnt identifiers */ @@ -1036,6 +1049,10 @@ static int __init composite_bind(struct usb_gadget *gadget) string_override(composite->strings, cdev->desc.iSerialNumber, iSerialNumber); + status = device_create_file(&gadget->dev, &dev_attr_suspended); + if (status) + goto fail; + INFO(cdev, "%s ready\n", composite->name); return 0; @@ -1064,6 +1081,8 @@ composite_suspend(struct usb_gadget *gadget) } if (composite->suspend) composite->suspend(cdev); + + cdev->suspended = 1; } static void @@ -1084,6 +1103,8 @@ composite_resume(struct usb_gadget *gadget) f->resume(f); } } + + cdev->suspended = 0; } /*-------------------------------------------------------------------------*/ @@ -1092,7 +1113,6 @@ static struct usb_gadget_driver composite_driver = { .speed = USB_SPEED_HIGH, .bind = composite_bind, - /* .unbind = __exit_p(composite_unbind), */ .unbind = composite_unbind, .setup = composite_setup, @@ -1121,7 +1141,7 @@ static struct usb_gadget_driver composite_driver = { * while it was binding. That would usually be done in order to wait for * some userspace participation. */ -int __init usb_composite_register(struct usb_composite_driver *driver) +int usb_composite_register(struct usb_composite_driver *driver) { if (!driver || !driver->dev || !driver->bind || composite) return -EINVAL; @@ -1142,7 +1162,7 @@ int __init usb_composite_register(struct usb_composite_driver *driver) * This function is used to unregister drivers using the composite * driver framework. */ -void /* __exit */ usb_composite_unregister(struct usb_composite_driver *driver) +void usb_composite_unregister(struct usb_composite_driver *driver) { if (composite != driver) return; |