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9pfs.h
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blkif.h
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cameraif.h
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console.h
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displif.h
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fbif.h
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fsif.h
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kbdif.h
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libxenvchan.h
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netif.h
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pciif.h
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protocols.h
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pvcalls.h
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ring.h
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sndif.h
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tpmif.h
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usbif.h
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vscsiif.h
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xenbus.h
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xs_wire.h
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Editing: usbif.h
/* * usbif.h * * USB I/O interface for Xen guest OSes. * * Copyright (C) 2009, FUJITSU LABORATORIES LTD. * Author: Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #ifndef __XEN_PUBLIC_IO_USBIF_H__ #define __XEN_PUBLIC_IO_USBIF_H__ #include "ring.h" #include "../grant_table.h" /* * Feature and Parameter Negotiation * ================================= * The two halves of a Xen pvUSB driver utilize nodes within the XenStore to * communicate capabilities and to negotiate operating parameters. This * section enumerates these nodes which reside in the respective front and * backend portions of the XenStore, following the XenBus convention. * * Any specified default value is in effect if the corresponding XenBus node * is not present in the XenStore. * * XenStore nodes in sections marked "PRIVATE" are solely for use by the * driver side whose XenBus tree contains them. * ***************************************************************************** * Backend XenBus Nodes ***************************************************************************** * *------------------ Backend Device Identification (PRIVATE) ------------------ * * num-ports * Values: unsigned [1...31] * * Number of ports for this (virtual) USB host connector. * * usb-ver * Values: unsigned [1...2] * * USB version of this host connector: 1 = USB 1.1, 2 = USB 2.0. * * port/[1...31] * Values: string * * Physical USB device connected to the given port, e.g. "3-1.5". * ***************************************************************************** * Frontend XenBus Nodes ***************************************************************************** * *----------------------- Request Transport Parameters ----------------------- * * event-channel * Values: unsigned * * The identifier of the Xen event channel used to signal activity * in the ring buffer. * * urb-ring-ref * Values: unsigned * * The Xen grant reference granting permission for the backend to map * the sole page in a single page sized ring buffer. This is the ring * buffer for urb requests. * * conn-ring-ref * Values: unsigned * * The Xen grant reference granting permission for the backend to map * the sole page in a single page sized ring buffer. This is the ring * buffer for connection/disconnection requests. * * protocol * Values: string (XEN_IO_PROTO_ABI_*) * Default Value: XEN_IO_PROTO_ABI_NATIVE * * The machine ABI rules governing the format of all ring request and * response structures. * */ enum usb_spec_version { USB_VER_UNKNOWN = 0, USB_VER_USB11, USB_VER_USB20, USB_VER_USB30, /* not supported yet */ }; /* * USB pipe in usbif_request * * - port number: bits 0-4 * (USB_MAXCHILDREN is 31) * * - operation flag: bit 5 * (0 = submit urb, * 1 = unlink urb) * * - direction: bit 7 * (0 = Host-to-Device [Out] * 1 = Device-to-Host [In]) * * - device address: bits 8-14 * * - endpoint: bits 15-18 * * - pipe type: bits 30-31 * (00 = isochronous, 01 = interrupt, * 10 = control, 11 = bulk) */ #define USBIF_PIPE_PORT_MASK 0x0000001f #define USBIF_PIPE_UNLINK 0x00000020 #define USBIF_PIPE_DIR 0x00000080 #define USBIF_PIPE_DEV_MASK 0x0000007f #define USBIF_PIPE_DEV_SHIFT 8 #define USBIF_PIPE_EP_MASK 0x0000000f #define USBIF_PIPE_EP_SHIFT 15 #define USBIF_PIPE_TYPE_MASK 0x00000003 #define USBIF_PIPE_TYPE_SHIFT 30 #define USBIF_PIPE_TYPE_ISOC 0 #define USBIF_PIPE_TYPE_INT 1 #define USBIF_PIPE_TYPE_CTRL 2 #define USBIF_PIPE_TYPE_BULK 3 #define usbif_pipeportnum(pipe) ((pipe) & USBIF_PIPE_PORT_MASK) #define usbif_setportnum_pipe(pipe, portnum) ((pipe) | (portnum)) #define usbif_pipeunlink(pipe) ((pipe) & USBIF_PIPE_UNLINK) #define usbif_pipesubmit(pipe) (!usbif_pipeunlink(pipe)) #define usbif_setunlink_pipe(pipe) ((pipe) | USBIF_PIPE_UNLINK) #define usbif_pipein(pipe) ((pipe) & USBIF_PIPE_DIR) #define usbif_pipeout(pipe) (!usbif_pipein(pipe)) #define usbif_pipedevice(pipe) \ (((pipe) >> USBIF_PIPE_DEV_SHIFT) & USBIF_PIPE_DEV_MASK) #define usbif_pipeendpoint(pipe) \ (((pipe) >> USBIF_PIPE_EP_SHIFT) & USBIF_PIPE_EP_MASK) #define usbif_pipetype(pipe) \ (((pipe) >> USBIF_PIPE_TYPE_SHIFT) & USBIF_PIPE_TYPE_MASK) #define usbif_pipeisoc(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_ISOC) #define usbif_pipeint(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_INT) #define usbif_pipectrl(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_CTRL) #define usbif_pipebulk(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_BULK) #define USBIF_MAX_SEGMENTS_PER_REQUEST (16) #define USBIF_MAX_PORTNR 31 #define USBIF_RING_SIZE 4096 /* * RING for transferring urbs. */ struct usbif_request_segment { grant_ref_t gref; uint16_t offset; uint16_t length; }; struct usbif_urb_request { uint16_t id; /* request id */ uint16_t nr_buffer_segs; /* number of urb->transfer_buffer segments */ /* basic urb parameter */ uint32_t pipe; uint16_t transfer_flags; #define USBIF_SHORT_NOT_OK 0x0001 uint16_t buffer_length; union { uint8_t ctrl[8]; /* setup_packet (Ctrl) */ struct { uint16_t interval; /* maximum (1024*8) in usb core */ uint16_t start_frame; /* start frame */ uint16_t number_of_packets; /* number of ISO packet */ uint16_t nr_frame_desc_segs; /* number of iso_frame_desc segments */ } isoc; struct { uint16_t interval; /* maximum (1024*8) in usb core */ uint16_t pad[3]; } intr; struct { uint16_t unlink_id; /* unlink request id */ uint16_t pad[3]; } unlink; } u; /* urb data segments */ struct usbif_request_segment seg[USBIF_MAX_SEGMENTS_PER_REQUEST]; }; typedef struct usbif_urb_request usbif_urb_request_t; struct usbif_urb_response { uint16_t id; /* request id */ uint16_t start_frame; /* start frame (ISO) */ int32_t status; /* status (non-ISO) */ int32_t actual_length; /* actual transfer length */ int32_t error_count; /* number of ISO errors */ }; typedef struct usbif_urb_response usbif_urb_response_t; DEFINE_RING_TYPES(usbif_urb, struct usbif_urb_request, struct usbif_urb_response); #define USB_URB_RING_SIZE __CONST_RING_SIZE(usbif_urb, USBIF_RING_SIZE) /* * RING for notifying connect/disconnect events to frontend */ struct usbif_conn_request { uint16_t id; }; typedef struct usbif_conn_request usbif_conn_request_t; struct usbif_conn_response { uint16_t id; /* request id */ uint8_t portnum; /* port number */ uint8_t speed; /* usb_device_speed */ #define USBIF_SPEED_NONE 0 #define USBIF_SPEED_LOW 1 #define USBIF_SPEED_FULL 2 #define USBIF_SPEED_HIGH 3 }; typedef struct usbif_conn_response usbif_conn_response_t; DEFINE_RING_TYPES(usbif_conn, struct usbif_conn_request, struct usbif_conn_response); #define USB_CONN_RING_SIZE __CONST_RING_SIZE(usbif_conn, USBIF_RING_SIZE) #endif /* __XEN_PUBLIC_IO_USBIF_H__ */
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