#ifndef QEMU_USB_H #define QEMU_USB_H /* * QEMU USB API * * Copyright (c) 2005 Fabrice Bellard * * 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. */ #include "exec/memory.h" #include "hw/qdev-core.h" #include "qemu/iov.h" #include "qemu/queue.h" #include "qom/object.h" /* Constants related to the USB / PCI interaction */ #define USB_SBRN 0x60 /* Serial Bus Release Number Register */ #define USB_RELEASE_1 0x10 /* USB 1.0 */ #define USB_RELEASE_2 0x20 /* USB 2.0 */ #define USB_RELEASE_3 0x30 /* USB 3.0 */ #define USB_TOKEN_SETUP 0x2d #define USB_TOKEN_IN 0x69 /* device -> host */ #define USB_TOKEN_OUT 0xe1 /* host -> device */ #define USB_RET_SUCCESS (0) #define USB_RET_NODEV (-1) #define USB_RET_NAK (-2) #define USB_RET_STALL (-3) #define USB_RET_BABBLE (-4) #define USB_RET_IOERROR (-5) #define USB_RET_ASYNC (-6) #define USB_RET_ADD_TO_QUEUE (-7) #define USB_RET_REMOVE_FROM_QUEUE (-8) #define USB_SPEED_LOW 0 #define USB_SPEED_FULL 1 #define USB_SPEED_HIGH 2 #define USB_SPEED_SUPER 3 #define USB_SPEED_MASK_LOW (1 << USB_SPEED_LOW) #define USB_SPEED_MASK_FULL (1 << USB_SPEED_FULL) #define USB_SPEED_MASK_HIGH (1 << USB_SPEED_HIGH) #define USB_SPEED_MASK_SUPER (1 << USB_SPEED_SUPER) #define USB_STATE_NOTATTACHED 0 #define USB_STATE_ATTACHED 1 //#define USB_STATE_POWERED 2 #define USB_STATE_DEFAULT 3 //#define USB_STATE_ADDRESS 4 //#define USB_STATE_CONFIGURED 5 #define USB_STATE_SUSPENDED 6 #define USB_CLASS_AUDIO 1 #define USB_CLASS_COMM 2 #define USB_CLASS_HID 3 #define USB_CLASS_PHYSICAL 5 #define USB_CLASS_STILL_IMAGE 6 #define USB_CLASS_PRINTER 7 #define USB_CLASS_MASS_STORAGE 8 #define USB_CLASS_HUB 9 #define USB_CLASS_CDC_DATA 0x0a #define USB_CLASS_CSCID 0x0b #define USB_CLASS_CONTENT_SEC 0x0d #define USB_CLASS_APP_SPEC 0xfe #define USB_CLASS_VENDOR_SPEC 0xff #define USB_SUBCLASS_UNDEFINED 0 #define USB_SUBCLASS_AUDIO_CONTROL 1 #define USB_SUBCLASS_AUDIO_STREAMING 2 #define USB_SUBCLASS_AUDIO_MIDISTREAMING 3 #define USB_DIR_OUT 0 #define USB_DIR_IN 0x80 #define USB_TYPE_MASK (0x03 << 5) #define USB_TYPE_STANDARD (0x00 << 5) #define USB_TYPE_CLASS (0x01 << 5) #define USB_TYPE_VENDOR (0x02 << 5) #define USB_TYPE_RESERVED (0x03 << 5) #define USB_RECIP_MASK 0x1f #define USB_RECIP_DEVICE 0x00 #define USB_RECIP_INTERFACE 0x01 #define USB_RECIP_ENDPOINT 0x02 #define USB_RECIP_OTHER 0x03 #define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8) #define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8) #define VendorDeviceRequest ((USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8) #define VendorDeviceOutRequest \ ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8) #define InterfaceRequest \ ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8) #define InterfaceOutRequest \ ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8) #define ClassInterfaceRequest \ ((USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8) #define ClassInterfaceOutRequest \ ((USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8) #define VendorInterfaceRequest \ ((USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_INTERFACE)<<8) #define VendorInterfaceOutRequest \ ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE)<<8) #define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8) #define EndpointOutRequest \ ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8) #define USB_REQ_GET_STATUS 0x00 #define USB_REQ_CLEAR_FEATURE 0x01 #define USB_REQ_SET_FEATURE 0x03 #define USB_REQ_SET_ADDRESS 0x05 #define USB_REQ_GET_DESCRIPTOR 0x06 #define USB_REQ_SET_DESCRIPTOR 0x07 #define USB_REQ_GET_CONFIGURATION 0x08 #define USB_REQ_SET_CONFIGURATION 0x09 #define USB_REQ_GET_INTERFACE 0x0A #define USB_REQ_SET_INTERFACE 0x0B #define USB_REQ_SYNCH_FRAME 0x0C #define USB_REQ_SET_SEL 0x30 #define USB_REQ_SET_ISOCH_DELAY 0x31 #define USB_DEVICE_SELF_POWERED 0 #define USB_DEVICE_REMOTE_WAKEUP 1 #define USB_DT_DEVICE 0x01 #define USB_DT_CONFIG 0x02 #define USB_DT_STRING 0x03 #define USB_DT_INTERFACE 0x04 #define USB_DT_ENDPOINT 0x05 #define USB_DT_DEVICE_QUALIFIER 0x06 #define USB_DT_OTHER_SPEED_CONFIG 0x07 #define USB_DT_DEBUG 0x0A #define USB_DT_INTERFACE_ASSOC 0x0B #define USB_DT_BOS 0x0F #define USB_DT_DEVICE_CAPABILITY 0x10 #define USB_DT_CS_INTERFACE 0x24 #define USB_DT_CS_ENDPOINT 0x25 #define USB_DT_ENDPOINT_COMPANION 0x30 #define USB_DEV_CAP_WIRELESS 0x01 #define USB_DEV_CAP_USB2_EXT 0x02 #define USB_DEV_CAP_SUPERSPEED 0x03 #define USB_CFG_ATT_ONE (1 << 7) /* should always be set */ #define USB_CFG_ATT_SELFPOWER (1 << 6) #define USB_CFG_ATT_WAKEUP (1 << 5) #define USB_CFG_ATT_BATTERY (1 << 4) #define USB_ENDPOINT_XFER_CONTROL 0 #define USB_ENDPOINT_XFER_ISOC 1 #define USB_ENDPOINT_XFER_BULK 2 #define USB_ENDPOINT_XFER_INT 3 #define USB_ENDPOINT_XFER_INVALID 255 #define USB_INTERFACE_INVALID 255 typedef struct USBBus USBBus; typedef struct USBBusOps USBBusOps; typedef struct USBPort USBPort; typedef struct USBDevice USBDevice; typedef struct USBPacket USBPacket; typedef struct USBCombinedPacket USBCombinedPacket; typedef struct USBEndpoint USBEndpoint; typedef struct USBDesc USBDesc; typedef struct USBDescID USBDescID; typedef struct USBDescDevice USBDescDevice; typedef struct USBDescConfig USBDescConfig; typedef struct USBDescIfaceAssoc USBDescIfaceAssoc; typedef struct USBDescIface USBDescIface; typedef struct USBDescEndpoint USBDescEndpoint; typedef struct USBDescOther USBDescOther; typedef struct USBDescString USBDescString; typedef struct USBDescMSOS USBDescMSOS; struct USBDescString { uint8_t index; char *str; QLIST_ENTRY(USBDescString) next; }; #define USB_MAX_ENDPOINTS 15 #define USB_MAX_INTERFACES 16 struct USBEndpoint { uint8_t nr; uint8_t pid; uint8_t type; uint8_t ifnum; int max_packet_size; int max_streams; bool pipeline; bool halted; USBDevice *dev; QTAILQ_HEAD(, USBPacket) queue; }; enum USBDeviceFlags { USB_DEV_FLAG_FULL_PATH, USB_DEV_FLAG_IS_HOST, USB_DEV_FLAG_MSOS_DESC_ENABLE, USB_DEV_FLAG_MSOS_DESC_IN_USE, }; /* definition of a USB device */ struct USBDevice { DeviceState qdev; USBPort *port; char *port_path; char *serial; void *opaque; uint32_t flags; /* Actual connected speed */ int speed; /* Supported speeds, not in info because it may be variable (hostdevs) */ int speedmask; uint8_t addr; char product_desc[32]; int auto_attach; bool attached; int32_t state; uint8_t setup_buf[8]; uint8_t data_buf[4096]; int32_t remote_wakeup; int32_t setup_state; int32_t setup_len; int32_t setup_index; USBEndpoint ep_ctl; USBEndpoint ep_in[USB_MAX_ENDPOINTS]; USBEndpoint ep_out[USB_MAX_ENDPOINTS]; QLIST_HEAD(, USBDescString) strings; const USBDesc *usb_desc; /* Overrides class usb_desc if not NULL */ const USBDescDevice *device; int configuration; int ninterfaces; int altsetting[USB_MAX_INTERFACES]; const USBDescConfig *config; const USBDescIface *ifaces[USB_MAX_INTERFACES]; }; #define TYPE_USB_DEVICE "usb-device" typedef struct USBDeviceClass USBDeviceClass; DECLARE_OBJ_CHECKERS(USBDevice, USBDeviceClass, USB_DEVICE, TYPE_USB_DEVICE) typedef void (*USBDeviceRealize)(USBDevice *dev, Error **errp); typedef void (*USBDeviceUnrealize)(USBDevice *dev); struct USBDeviceClass { DeviceClass parent_class; USBDeviceRealize realize; USBDeviceUnrealize unrealize; /* * Walk (enabled) downstream ports, check for a matching device. * Only hubs implement this. */ USBDevice *(*find_device)(USBDevice *dev, uint8_t addr); /* * Called when a packet is canceled. */ void (*cancel_packet)(USBDevice *dev, USBPacket *p); /* * Attach the device */ void (*handle_attach)(USBDevice *dev); /* * Reset the device */ void (*handle_reset)(USBDevice *dev); /* * Process control request. * Called from handle_packet(). * * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS * then the number of bytes transferred is stored in p->actual_length */ void (*handle_control)(USBDevice *dev, USBPacket *p, int request, int value, int index, int length, uint8_t *data); /* * Process data transfers (both BULK and ISOC). * Called from handle_packet(). * * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS * then the number of bytes transferred is stored in p->actual_length */ void (*handle_data)(USBDevice *dev, USBPacket *p); void (*set_interface)(USBDevice *dev, int interface, int alt_old, int alt_new); /* * Called when the hcd is done queuing packets for an endpoint, only * necessary for devices which can return USB_RET_ADD_TO_QUEUE. */ void (*flush_ep_queue)(USBDevice *dev, USBEndpoint *ep); /* * Called by the hcd to let the device know the queue for an endpoint * has been unlinked / stopped. Optional may be NULL. */ void (*ep_stopped)(USBDevice *dev, USBEndpoint *ep); /* * Called by the hcd to alloc / free streams on a bulk endpoint. * Optional may be NULL. */ int (*alloc_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps, int streams); void (*free_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps); const char *product_desc; const USBDesc *usb_desc; bool attached_settable; }; typedef struct USBPortOps { void (*attach)(USBPort *port); void (*detach)(USBPort *port); /* * This gets called when a device downstream from the device attached to * the port (iow attached through a hub) gets detached. */ void (*child_detach)(USBPort *port, USBDevice *child); void (*wakeup)(USBPort *port); /* * Note that port->dev will be different then the device from which * the packet originated when a hub is involved. */ void (*complete)(USBPort *port, USBPacket *p); } USBPortOps; /* USB port on which a device can be connected */ struct USBPort { USBDevice *dev; int speedmask; int hubcount; char path[16]; USBPortOps *ops; void *opaque; int index; /* internal port index, may be used with the opaque */ QTAILQ_ENTRY(USBPort) next; }; typedef void USBCallback(USBPacket * packet, void *opaque); typedef enum USBPacketState { USB_PACKET_UNDEFINED = 0, USB_PACKET_SETUP, USB_PACKET_QUEUED, USB_PACKET_ASYNC, USB_PACKET_COMPLETE, USB_PACKET_CANCELED, } USBPacketState; /* Structure used to hold information about an active USB packet. */ struct USBPacket { /* Data fields for use by the driver. */ int pid; uint64_t id; USBEndpoint *ep; unsigned int stream; QEMUIOVector iov; uint64_t parameter; /* control transfers */ bool short_not_ok; bool int_req; int status; /* USB_RET_* status code */ int actual_length; /* Number of bytes actually transferred */ /* Internal use by the USB layer. */ USBPacketState state; USBCombinedPacket *combined; QTAILQ_ENTRY(USBPacket) queue; QTAILQ_ENTRY(USBPacket) combined_entry; }; struct USBCombinedPacket { USBPacket *first; QTAILQ_HEAD(, USBPacket) packets; QEMUIOVector iov; }; void usb_packet_init(USBPacket *p); void usb_packet_set_state(USBPacket *p, USBPacketState state); void usb_packet_check_state(USBPacket *p, USBPacketState expected); void usb_packet_setup(USBPacket *p, int pid, USBEndpoint *ep, unsigned int stream, uint64_t id, bool short_not_ok, bool int_req); void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len); int usb_packet_map(USBPacket *p, QEMUSGList *sgl); void usb_packet_unmap(USBPacket *p, QEMUSGList *sgl); void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes); void usb_packet_skip(USBPacket *p, size_t bytes); size_t usb_packet_size(USBPacket *p); void usb_packet_cleanup(USBPacket *p); static inline bool usb_packet_is_inflight(USBPacket *p) { return (p->state == USB_PACKET_QUEUED || p->state == USB_PACKET_ASYNC); } USBDevice *usb_find_device(USBPort *port, uint8_t addr); void usb_handle_packet(USBDevice *dev, USBPacket *p); void usb_packet_complete(USBDevice *dev, USBPacket *p); void usb_packet_complete_one(USBDevice *dev, USBPacket *p); void usb_cancel_packet(USBPacket * p); void usb_ep_init(USBDevice *dev); void usb_ep_reset(USBDevice *dev); void usb_ep_dump(USBDevice *dev); struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep); uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep); void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type); void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum); void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep, uint16_t raw); void usb_ep_set_max_streams(USBDevice *dev, int pid, int ep, uint8_t raw); void usb_ep_set_halted(USBDevice *dev, int pid, int ep, bool halted); USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep, uint64_t id); void usb_ep_combine_input_packets(USBEndpoint *ep); void usb_combined_input_packet_complete(USBDevice *dev, USBPacket *p); void usb_combined_packet_cancel(USBDevice *dev, USBPacket *p); void usb_pick_speed(USBPort *port); void usb_attach(USBPort *port); void usb_detach(USBPort *port); void usb_port_reset(USBPort *port); void usb_device_reset(USBDevice *dev); void usb_wakeup(USBEndpoint *ep, unsigned int stream); void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p); /* usb-linux.c */ void hmp_info_usbhost(Monitor *mon, const QDict *qdict); bool usb_host_dev_is_scsi_storage(USBDevice *usbdev); /* usb ports of the VM */ #define VM_USB_HUB_SIZE 8 /* usb-bus.c */ #define TYPE_USB_BUS "usb-bus" DECLARE_INSTANCE_CHECKER(USBBus, USB_BUS, TYPE_USB_BUS) struct USBBus { BusState qbus; USBBusOps *ops; int busnr; int nfree; int nused; QTAILQ_HEAD(, USBPort) free; QTAILQ_HEAD(, USBPort) used; QTAILQ_ENTRY(USBBus) next; }; struct USBBusOps { void (*register_companion)(USBBus *bus, USBPort *ports[], uint32_t portcount, uint32_t firstport, Error **errp); void (*wakeup_endpoint)(USBBus *bus, USBEndpoint *ep, unsigned int stream); }; void usb_bus_new(USBBus *bus, size_t bus_size, USBBusOps *ops, DeviceState *host); void usb_bus_release(USBBus *bus); USBBus *usb_bus_find(int busnr); void usb_legacy_register(const char *typename, const char *usbdevice_name, USBDevice *(*usbdevice_init)(const char *params)); USBDevice *usb_new(const char *name); bool usb_realize_and_unref(USBDevice *dev, USBBus *bus, Error **errp); USBDevice *usb_create_simple(USBBus *bus, const char *name); USBDevice *usbdevice_create(const char *cmdline); void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index, USBPortOps *ops, int speedmask); void usb_register_companion(const char *masterbus, USBPort *ports[], uint32_t portcount, uint32_t firstport, void *opaque, USBPortOps *ops, int speedmask, Error **errp); void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr); void usb_unregister_port(USBBus *bus, USBPort *port); void usb_claim_port(USBDevice *dev, Error **errp); void usb_release_port(USBDevice *dev); void usb_device_attach(USBDevice *dev, Error **errp); int usb_device_detach(USBDevice *dev); void usb_check_attach(USBDevice *dev, Error **errp); static inline USBBus *usb_bus_from_device(USBDevice *d) { return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus); } extern const VMStateDescription vmstate_usb_device; #define VMSTATE_USB_DEVICE(_field, _state) { \ .name = (stringify(_field)), \ .size = sizeof(USBDevice), \ .vmsd = &vmstate_usb_device, \ .flags = VMS_STRUCT, \ .offset = vmstate_offset_value(_state, _field, USBDevice), \ } USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr); void usb_device_cancel_packet(USBDevice *dev, USBPacket *p); void usb_device_handle_attach(USBDevice *dev); void usb_device_handle_reset(USBDevice *dev); void usb_device_handle_control(USBDevice *dev, USBPacket *p, int request, int val, int index, int length, uint8_t *data); void usb_device_handle_data(USBDevice *dev, USBPacket *p); void usb_device_set_interface(USBDevice *dev, int interface, int alt_old, int alt_new); void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep); void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep); int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps, int streams); void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps); const char *usb_device_get_product_desc(USBDevice *dev); const USBDesc *usb_device_get_usb_desc(USBDevice *dev); /* quirks.c */ /* In bulk endpoints are streaming data sources (iow behave like isoc eps) */ #define USB_QUIRK_BUFFER_BULK_IN 0x01 /* Bulk pkts in FTDI format, need special handling when combining packets */ #define USB_QUIRK_IS_FTDI 0x02 int usb_get_quirks(uint16_t vendor_id, uint16_t product_id, uint8_t interface_class, uint8_t interface_subclass, uint8_t interface_protocol); #endif