diff options
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | include/linux/usb.h | 171 |
1 files changed, 107 insertions, 64 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index 4dbe580f933..748d0438525 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -57,6 +57,7 @@ struct usb_host_endpoint { struct usb_endpoint_descriptor desc; struct list_head urb_list; void *hcpriv; + struct kobject *kobj; /* For sysfs info */ unsigned char *extra; /* Extra descriptors */ int extralen; @@ -136,7 +137,8 @@ struct usb_interface { * active alternate setting */ unsigned num_altsetting; /* number of alternate settings */ - int minor; /* minor number this interface is bound to */ + int minor; /* minor number this interface is + * bound to */ enum usb_interface_condition condition; /* state of binding */ struct device dev; /* interface specific device info */ struct class_device *class_dev; @@ -229,7 +231,7 @@ struct usb_interface_cache { struct usb_host_config { struct usb_config_descriptor desc; - char *string; + char *string; /* iConfiguration string, if present */ /* the interfaces associated with this configuration, * stored in no particular order */ struct usb_interface *interface[USB_MAXINTERFACES]; @@ -248,7 +250,7 @@ int __usb_get_extra_descriptor(char *buffer, unsigned size, __usb_get_extra_descriptor((ifpoint)->extra,(ifpoint)->extralen,\ type,(void**)ptr) -/* -------------------------------------------------------------------------- */ +/* ----------------------------------------------------------------------- */ struct usb_operations; @@ -268,7 +270,8 @@ struct usb_bus { unsigned is_b_host:1; /* true during some HNP roleswitches */ unsigned b_hnp_enable:1; /* OTG: did A-Host enable HNP? */ - int devnum_next; /* Next open device number in round-robin allocation */ + int devnum_next; /* Next open device number in + * round-robin allocation */ struct usb_devmap devmap; /* device address allocation map */ struct usb_operations *op; /* Operations (specific to the HC) */ @@ -289,15 +292,16 @@ struct usb_bus { struct dentry *usbfs_dentry; /* usbfs dentry entry for the bus */ struct class_device *class_dev; /* class device for this bus */ - struct kref kref; /* handles reference counting this bus */ - void (*release)(struct usb_bus *bus); /* function to destroy this bus's memory */ + struct kref kref; /* reference counting for this bus */ + void (*release)(struct usb_bus *bus); + #if defined(CONFIG_USB_MON) struct mon_bus *mon_bus; /* non-null when associated */ int monitored; /* non-zero when monitored */ #endif }; -/* -------------------------------------------------------------------------- */ +/* ----------------------------------------------------------------------- */ /* This is arbitrary. * From USB 2.0 spec Table 11-13, offset 7, a hub can @@ -326,7 +330,8 @@ struct usb_device { struct semaphore serialize; - unsigned int toggle[2]; /* one bit for each endpoint ([0] = IN, [1] = OUT) */ + unsigned int toggle[2]; /* one bit for each endpoint + * ([0] = IN, [1] = OUT) */ struct usb_device *parent; /* our hub, unless we're the root */ struct usb_bus *bus; /* Bus we're part of */ @@ -343,12 +348,14 @@ struct usb_device { char **rawdescriptors; /* Raw descriptors for each config */ - int have_langid; /* whether string_langid is valid yet */ + int have_langid; /* whether string_langid is valid */ int string_langid; /* language ID for strings */ - char *product; - char *manufacturer; - char *serial; /* static strings from the device */ + /* static strings from the device */ + char *product; /* iProduct string, if present */ + char *manufacturer; /* iManufacturer string, if present */ + char *serial; /* iSerialNumber string, if present */ + struct list_head filelist; struct class_device *class_dev; struct dentry *usbfs_dentry; /* usbfs dentry entry for the device */ @@ -440,22 +447,31 @@ extern struct usb_host_interface *usb_altnum_to_altsetting( * USB 2.0 root hubs (EHCI host controllers) will get one path ID if they are * high speed, and a different one if they are full or low speed. */ -static inline int usb_make_path (struct usb_device *dev, char *buf, size_t size) +static inline int usb_make_path (struct usb_device *dev, char *buf, + size_t size) { int actual; - actual = snprintf (buf, size, "usb-%s-%s", dev->bus->bus_name, dev->devpath); + actual = snprintf (buf, size, "usb-%s-%s", dev->bus->bus_name, + dev->devpath); return (actual >= (int)size) ? -1 : actual; } /*-------------------------------------------------------------------------*/ -#define USB_DEVICE_ID_MATCH_DEVICE (USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT) -#define USB_DEVICE_ID_MATCH_DEV_RANGE (USB_DEVICE_ID_MATCH_DEV_LO | USB_DEVICE_ID_MATCH_DEV_HI) -#define USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_RANGE) +#define USB_DEVICE_ID_MATCH_DEVICE \ + (USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT) +#define USB_DEVICE_ID_MATCH_DEV_RANGE \ + (USB_DEVICE_ID_MATCH_DEV_LO | USB_DEVICE_ID_MATCH_DEV_HI) +#define USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION \ + (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_RANGE) #define USB_DEVICE_ID_MATCH_DEV_INFO \ - (USB_DEVICE_ID_MATCH_DEV_CLASS | USB_DEVICE_ID_MATCH_DEV_SUBCLASS | USB_DEVICE_ID_MATCH_DEV_PROTOCOL) + (USB_DEVICE_ID_MATCH_DEV_CLASS | \ + USB_DEVICE_ID_MATCH_DEV_SUBCLASS | \ + USB_DEVICE_ID_MATCH_DEV_PROTOCOL) #define USB_DEVICE_ID_MATCH_INT_INFO \ - (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS | USB_DEVICE_ID_MATCH_INT_PROTOCOL) + (USB_DEVICE_ID_MATCH_INT_CLASS | \ + USB_DEVICE_ID_MATCH_INT_SUBCLASS | \ + USB_DEVICE_ID_MATCH_INT_PROTOCOL) /** * USB_DEVICE - macro used to describe a specific usb device @@ -466,9 +482,11 @@ static inline int usb_make_path (struct usb_device *dev, char *buf, size_t size) * specific device. */ #define USB_DEVICE(vend,prod) \ - .match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = (vend), .idProduct = (prod) + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = (vend), \ + .idProduct = (prod) /** - * USB_DEVICE_VER - macro used to describe a specific usb device with a version range + * USB_DEVICE_VER - macro used to describe a specific usb device with a + * version range * @vend: the 16 bit USB Vendor ID * @prod: the 16 bit USB Product ID * @lo: the bcdDevice_lo value @@ -478,7 +496,9 @@ static inline int usb_make_path (struct usb_device *dev, char *buf, size_t size) * specific device, with a version range. */ #define USB_DEVICE_VER(vend,prod,lo,hi) \ - .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION, .idVendor = (vend), .idProduct = (prod), .bcdDevice_lo = (lo), .bcdDevice_hi = (hi) + .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION, \ + .idVendor = (vend), .idProduct = (prod), \ + .bcdDevice_lo = (lo), .bcdDevice_hi = (hi) /** * USB_DEVICE_INFO - macro used to describe a class of usb devices @@ -490,7 +510,8 @@ static inline int usb_make_path (struct usb_device *dev, char *buf, size_t size) * specific class of devices. */ #define USB_DEVICE_INFO(cl,sc,pr) \ - .match_flags = USB_DEVICE_ID_MATCH_DEV_INFO, .bDeviceClass = (cl), .bDeviceSubClass = (sc), .bDeviceProtocol = (pr) + .match_flags = USB_DEVICE_ID_MATCH_DEV_INFO, .bDeviceClass = (cl), \ + .bDeviceSubClass = (sc), .bDeviceProtocol = (pr) /** * USB_INTERFACE_INFO - macro used to describe a class of usb interfaces @@ -502,9 +523,10 @@ static inline int usb_make_path (struct usb_device *dev, char *buf, size_t size) * specific class of interfaces. */ #define USB_INTERFACE_INFO(cl,sc,pr) \ - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO, .bInterfaceClass = (cl), .bInterfaceSubClass = (sc), .bInterfaceProtocol = (pr) + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO, .bInterfaceClass = (cl), \ + .bInterfaceSubClass = (sc), .bInterfaceProtocol = (pr) -/* -------------------------------------------------------------------------- */ +/* ----------------------------------------------------------------------- */ /** * struct usb_driver - identifies USB driver to usbcore @@ -557,7 +579,8 @@ struct usb_driver { void (*disconnect) (struct usb_interface *intf); - int (*ioctl) (struct usb_interface *intf, unsigned int code, void *buf); + int (*ioctl) (struct usb_interface *intf, unsigned int code, + void *buf); int (*suspend) (struct usb_interface *intf, pm_message_t message); int (*resume) (struct usb_interface *intf); @@ -572,10 +595,8 @@ extern struct bus_type usb_bus_type; /** * struct usb_class_driver - identifies a USB driver that wants to use the USB major number - * @name: devfs name for this driver. Will also be used by the driver - * class code to create a usb class device. + * @name: the usb class device name for this driver. Will show up in sysfs. * @fops: pointer to the struct file_operations of this driver. - * @mode: the mode for the devfs file to be created for this driver. * @minor_base: the start of the minor range for this driver. * * This structure is used for the usb_register_dev() and @@ -585,8 +606,7 @@ extern struct bus_type usb_bus_type; struct usb_class_driver { char *name; struct file_operations *fops; - mode_t mode; - int minor_base; + int minor_base; }; /* @@ -603,7 +623,7 @@ extern void usb_deregister_dev(struct usb_interface *intf, extern int usb_disabled(void); -/* -------------------------------------------------------------------------- */ +/* ----------------------------------------------------------------------- */ /* * URB support, for asynchronous request completions @@ -613,12 +633,14 @@ extern int usb_disabled(void); * urb->transfer_flags: */ #define URB_SHORT_NOT_OK 0x0001 /* report short reads as errors */ -#define URB_ISO_ASAP 0x0002 /* iso-only, urb->start_frame ignored */ +#define URB_ISO_ASAP 0x0002 /* iso-only, urb->start_frame + * ignored */ #define URB_NO_TRANSFER_DMA_MAP 0x0004 /* urb->transfer_dma valid on submit */ #define URB_NO_SETUP_DMA_MAP 0x0008 /* urb->setup_dma valid on submit */ #define URB_NO_FSBR 0x0020 /* UHCI-specific */ -#define URB_ZERO_PACKET 0x0040 /* Finish bulk OUTs with short packet */ -#define URB_NO_INTERRUPT 0x0080 /* HINT: no non-error interrupt needed */ +#define URB_ZERO_PACKET 0x0040 /* Finish bulk OUT with short packet */ +#define URB_NO_INTERRUPT 0x0080 /* HINT: no non-error interrupt + * needed */ struct usb_iso_packet_descriptor { unsigned int offset; @@ -806,7 +828,8 @@ struct urb u8 reject; /* submissions will fail */ /* public, documented fields in the urb that can be used by drivers */ - struct list_head urb_list; /* list head for use by the urb owner */ + struct list_head urb_list; /* list head for use by the urb's + * current owner */ struct usb_device *dev; /* (in) pointer to associated device */ unsigned int pipe; /* (in) pipe information */ int status; /* (return) non-ISO status */ @@ -819,14 +842,16 @@ struct urb dma_addr_t setup_dma; /* (in) dma addr for setup_packet */ int start_frame; /* (modify) start frame (ISO) */ int number_of_packets; /* (in) number of ISO packets */ - int interval; /* (modify) transfer interval (INT/ISO) */ + int interval; /* (modify) transfer interval + * (INT/ISO) */ int error_count; /* (return) number of ISO errors */ void *context; /* (in) context for completion */ usb_complete_t complete; /* (in) completion routine */ - struct usb_iso_packet_descriptor iso_frame_desc[0]; /* (in) ISO ONLY */ + struct usb_iso_packet_descriptor iso_frame_desc[0]; + /* (in) ISO ONLY */ }; -/* -------------------------------------------------------------------------- */ +/* ----------------------------------------------------------------------- */ /** * usb_fill_control_urb - initializes a control urb @@ -933,17 +958,17 @@ static inline void usb_fill_int_urb (struct urb *urb, } extern void usb_init_urb(struct urb *urb); -extern struct urb *usb_alloc_urb(int iso_packets, unsigned mem_flags); +extern struct urb *usb_alloc_urb(int iso_packets, gfp_t mem_flags); extern void usb_free_urb(struct urb *urb); #define usb_put_urb usb_free_urb extern struct urb *usb_get_urb(struct urb *urb); -extern int usb_submit_urb(struct urb *urb, unsigned mem_flags); +extern int usb_submit_urb(struct urb *urb, gfp_t mem_flags); extern int usb_unlink_urb(struct urb *urb); extern void usb_kill_urb(struct urb *urb); #define HAVE_USB_BUFFERS void *usb_buffer_alloc (struct usb_device *dev, size_t size, - unsigned mem_flags, dma_addr_t *dma); + gfp_t mem_flags, dma_addr_t *dma); void usb_buffer_free (struct usb_device *dev, size_t size, void *addr, dma_addr_t dma); @@ -974,11 +999,6 @@ extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe, void *data, int len, int *actual_length, int timeout); -/* selective suspend/resume */ -extern int usb_suspend_device(struct usb_device *dev, pm_message_t message); -extern int usb_resume_device(struct usb_device *dev); - - /* wrappers around usb_control_msg() for the most common standard requests */ extern int usb_get_descriptor(struct usb_device *dev, unsigned char desctype, unsigned char descindex, void *buf, int size); @@ -1050,13 +1070,13 @@ int usb_sg_init ( struct scatterlist *sg, int nents, size_t length, - unsigned mem_flags + gfp_t mem_flags ); void usb_sg_cancel (struct usb_sg_request *io); void usb_sg_wait (struct usb_sg_request *io); -/* -------------------------------------------------------------------------- */ +/* ----------------------------------------------------------------------- */ /* * For various legacy reasons, Linux has a small cookie that's paired with @@ -1097,23 +1117,34 @@ void usb_sg_wait (struct usb_sg_request *io); /* The D0/D1 toggle bits ... USE WITH CAUTION (they're almost hcd-internal) */ #define usb_gettoggle(dev, ep, out) (((dev)->toggle[out] >> (ep)) & 1) #define usb_dotoggle(dev, ep, out) ((dev)->toggle[out] ^= (1 << (ep))) -#define usb_settoggle(dev, ep, out, bit) ((dev)->toggle[out] = ((dev)->toggle[out] & ~(1 << (ep))) | ((bit) << (ep))) +#define usb_settoggle(dev, ep, out, bit) \ + ((dev)->toggle[out] = ((dev)->toggle[out] & ~(1 << (ep))) | \ + ((bit) << (ep))) -static inline unsigned int __create_pipe(struct usb_device *dev, unsigned int endpoint) +static inline unsigned int __create_pipe(struct usb_device *dev, + unsigned int endpoint) { return (dev->devnum << 8) | (endpoint << 15); } /* Create various pipes... */ -#define usb_sndctrlpipe(dev,endpoint) ((PIPE_CONTROL << 30) | __create_pipe(dev,endpoint)) -#define usb_rcvctrlpipe(dev,endpoint) ((PIPE_CONTROL << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN) -#define usb_sndisocpipe(dev,endpoint) ((PIPE_ISOCHRONOUS << 30) | __create_pipe(dev,endpoint)) -#define usb_rcvisocpipe(dev,endpoint) ((PIPE_ISOCHRONOUS << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN) -#define usb_sndbulkpipe(dev,endpoint) ((PIPE_BULK << 30) | __create_pipe(dev,endpoint)) -#define usb_rcvbulkpipe(dev,endpoint) ((PIPE_BULK << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN) -#define usb_sndintpipe(dev,endpoint) ((PIPE_INTERRUPT << 30) | __create_pipe(dev,endpoint)) -#define usb_rcvintpipe(dev,endpoint) ((PIPE_INTERRUPT << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN) +#define usb_sndctrlpipe(dev,endpoint) \ + ((PIPE_CONTROL << 30) | __create_pipe(dev,endpoint)) +#define usb_rcvctrlpipe(dev,endpoint) \ + ((PIPE_CONTROL << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN) +#define usb_sndisocpipe(dev,endpoint) \ + ((PIPE_ISOCHRONOUS << 30) | __create_pipe(dev,endpoint)) +#define usb_rcvisocpipe(dev,endpoint) \ + ((PIPE_ISOCHRONOUS << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN) +#define usb_sndbulkpipe(dev,endpoint) \ + ((PIPE_BULK << 30) | __create_pipe(dev,endpoint)) +#define usb_rcvbulkpipe(dev,endpoint) \ + ((PIPE_BULK << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN) +#define usb_sndintpipe(dev,endpoint) \ + ((PIPE_INTERRUPT << 30) | __create_pipe(dev,endpoint)) +#define usb_rcvintpipe(dev,endpoint) \ + ((PIPE_INTERRUPT << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN) /*-------------------------------------------------------------------------*/ @@ -1137,17 +1168,29 @@ usb_maxpacket(struct usb_device *udev, int pipe, int is_out) return le16_to_cpu(ep->desc.wMaxPacketSize); } -/* -------------------------------------------------------------------------- */ +/* ----------------------------------------------------------------------- */ + +/* Events from the usb core */ +#define USB_DEVICE_ADD 0x0001 +#define USB_DEVICE_REMOVE 0x0002 +#define USB_BUS_ADD 0x0003 +#define USB_BUS_REMOVE 0x0004 +extern void usb_register_notify(struct notifier_block *nb); +extern void usb_unregister_notify(struct notifier_block *nb); #ifdef DEBUG -#define dbg(format, arg...) printk(KERN_DEBUG "%s: " format "\n" , __FILE__ , ## arg) +#define dbg(format, arg...) printk(KERN_DEBUG "%s: " format "\n" , \ + __FILE__ , ## arg) #else #define dbg(format, arg...) do {} while (0) #endif -#define err(format, arg...) printk(KERN_ERR "%s: " format "\n" , __FILE__ , ## arg) -#define info(format, arg...) printk(KERN_INFO "%s: " format "\n" , __FILE__ , ## arg) -#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n" , __FILE__ , ## arg) +#define err(format, arg...) printk(KERN_ERR "%s: " format "\n" , \ + __FILE__ , ## arg) +#define info(format, arg...) printk(KERN_INFO "%s: " format "\n" , \ + __FILE__ , ## arg) +#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n" , \ + __FILE__ , ## arg) #endif /* __KERNEL__ */ |