diff options
Diffstat (limited to 'include/linux/usb/composite.h')
| -rw-r--r-- | include/linux/usb/composite.h | 58 |
1 files changed, 30 insertions, 28 deletions
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 43ac3fa760db..c18041fafa52 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -25,6 +25,7 @@ #include <linux/version.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/usb/webusb.h> #include <linux/log2.h> #include <linux/configfs.h> @@ -34,6 +35,14 @@ * are ready. The control transfer will then be kept from completing till * all the function drivers that requested for USB_GADGET_DELAYED_STAUS * invoke usb_composite_setup_continue(). + * + * NOTE: USB_GADGET_DELAYED_STATUS must not be used in UDC drivers: they + * must delay completing the status stage for 0-length control transfers + * regardless of the whether USB_GADGET_DELAYED_STATUS is returned from + * the gadget driver's setup() callback. + * Currently, a number of UDC drivers rely on USB_GADGET_DELAYED_STATUS, + * which is a bug. These drivers must be fixed and USB_GADGET_DELAYED_STATUS + * must be contained within the composite framework. */ #define USB_GADGET_DELAYED_STATUS 0x7fff /* Impossibly large value */ @@ -149,6 +158,9 @@ struct usb_os_desc_table { * GetStatus() request when the recipient is Interface. * @func_suspend: callback to be called when * SetFeature(FUNCTION_SUSPEND) is reseived + * @func_suspended: Indicates whether the function is in function suspend state. + * @func_wakeup_armed: Indicates whether the function is armed by the host for + * wakeup signaling. * * A single USB function uses one or more interfaces, and should in most * cases support operation at both full and high speeds. Each function is @@ -219,11 +231,13 @@ struct usb_function { int (*get_status)(struct usb_function *); int (*func_suspend)(struct usb_function *, u8 suspend_opt); + bool func_suspended; + bool func_wakeup_armed; /* private: */ /* internals */ struct list_head list; DECLARE_BITMAP(endpoints, 32); - const struct usb_function_instance *fi; + struct usb_function_instance *fi; unsigned int bind_deactivated:1; }; @@ -240,8 +254,9 @@ int config_ep_by_speed_and_alt(struct usb_gadget *g, struct usb_function *f, int config_ep_by_speed(struct usb_gadget *g, struct usb_function *f, struct usb_ep *_ep); +int usb_func_wakeup(struct usb_function *func); -#define MAX_CONFIG_INTERFACES 16 /* arbitrary; max 255 */ +#define MAX_CONFIG_INTERFACES 32 /** * struct usb_configuration - represents one gadget configuration @@ -324,9 +339,6 @@ int usb_add_config(struct usb_composite_dev *, struct usb_configuration *, int (*)(struct usb_configuration *)); -void usb_remove_config(struct usb_composite_dev *, - struct usb_configuration *); - /* predefined index for usb_composite_driver */ enum { USB_GADGET_MANUFACTURER_IDX = 0, @@ -412,6 +424,8 @@ extern int composite_dev_prepare(struct usb_composite_driver *composite, extern int composite_os_desc_req_prepare(struct usb_composite_dev *cdev, struct usb_ep *ep0); void composite_dev_cleanup(struct usb_composite_dev *cdev); +void check_remote_wakeup_config(struct usb_gadget *g, + struct usb_configuration *c); static inline struct usb_composite_driver *to_cdriver( struct usb_gadget_driver *gdrv) @@ -431,35 +445,16 @@ static inline struct usb_composite_driver *to_cdriver( * @qw_sign: qwSignature part of the OS string * @b_vendor_code: bMS_VendorCode part of the OS string * @use_os_string: false by default, interested gadgets set it + * @bcd_webusb_version: 0x0100 by default, WebUSB specification version + * @b_webusb_vendor_code: 0x0 by default, vendor code for WebUSB + * @landing_page: empty by default, landing page to announce in WebUSB + * @use_webusb: false by default, interested gadgets set it * @os_desc_config: the configuration to be used with OS descriptors * @setup_pending: true when setup request is queued but not completed * @os_desc_pending: true when os_desc request is queued but not completed * * One of these devices is allocated and initialized before the * associated device driver's bind() is called. - * - * OPEN ISSUE: it appears that some WUSB devices will need to be - * built by combining a normal (wired) gadget with a wireless one. - * This revision of the gadget framework should probably try to make - * sure doing that won't hurt too much. - * - * One notion for how to handle Wireless USB devices involves: - * - * (a) a second gadget here, discovery mechanism TBD, but likely - * needing separate "register/unregister WUSB gadget" calls; - * (b) updates to usb_gadget to include flags "is it wireless", - * "is it wired", plus (presumably in a wrapper structure) - * bandgroup and PHY info; - * (c) presumably a wireless_ep wrapping a usb_ep, and reporting - * wireless-specific parameters like maxburst and maxsequence; - * (d) configurations that are specific to wireless links; - * (e) function drivers that understand wireless configs and will - * support wireless for (additional) function instances; - * (f) a function to support association setup (like CBAF), not - * necessarily requiring a wireless adapter; - * (g) composite device setup that can create one or more wireless - * configs, including appropriate association setup support; - * (h) more, TBD. */ struct usb_composite_dev { struct usb_gadget *gadget; @@ -474,6 +469,12 @@ struct usb_composite_dev { struct usb_configuration *os_desc_config; unsigned int use_os_string:1; + /* WebUSB */ + u16 bcd_webusb_version; + u8 b_webusb_vendor_code; + char landing_page[WEBUSB_URL_RAW_MAX_LENGTH]; + unsigned int use_webusb:1; + /* private: */ /* internals */ unsigned int suspended:1; @@ -483,6 +484,7 @@ struct usb_composite_dev { struct usb_composite_driver *driver; u8 next_string_id; char *def_manufacturer; + struct usb_string *usb_strings; /* the gadget driver won't enable the data pullup * while the deactivation count is nonzero. |