/* * 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. */ #define USB_TOKEN_SETUP 0x2d #define USB_TOKEN_IN 0x69 /* device -> host */ #define USB_TOKEN_OUT 0xe1 /* host -> device */ /* specific usb messages, also sent in the 'pid' parameter */ #define USB_MSG_ATTACH 0x100 #define USB_MSG_DETACH 0x101 #define USB_MSG_RESET 0x102 #define USB_RET_NODEV (-1) #define USB_RET_NAK (-2) #define USB_RET_STALL (-3) #define USB_RET_BABBLE (-4) #define USB_RET_ASYNC (-5) #define USB_SPEED_LOW 0 #define USB_SPEED_FULL 1 #define USB_SPEED_HIGH 2 #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_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 InterfaceRequest \ ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8) #define InterfaceOutRequest \ ((USB_DIR_OUT|USB_TYPE_STANDARD|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_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 typedef struct USBPort USBPort; typedef struct USBDevice USBDevice; typedef struct USBPacket USBPacket; /* definition of a USB device */ struct USBDevice { void *opaque; int (*handle_packet)(USBDevice *dev, USBPacket *p); void (*handle_destroy)(USBDevice *dev); int speed; /* The following fields are used by the generic USB device layer. They are here just to avoid creating a new structure for them. */ void (*handle_reset)(USBDevice *dev); int (*handle_control)(USBDevice *dev, int request, int value, int index, int length, uint8_t *data); int (*handle_data)(USBDevice *dev, USBPacket *p); uint8_t addr; char devname[32]; int state; uint8_t setup_buf[8]; uint8_t data_buf[1024]; int remote_wakeup; int setup_state; int setup_len; int setup_index; }; typedef void (*usb_attachfn)(USBPort *port, USBDevice *dev); /* USB port on which a device can be connected */ struct USBPort { USBDevice *dev; usb_attachfn attach; void *opaque; int index; /* internal port index, may be used with the opaque */ struct USBPort *next; /* Used internally by qemu. */ }; typedef void USBCallback(USBPacket * packet, void *opaque); /* Structure used to hold information about an active USB packet. */ struct USBPacket { /* Data fields for use by the driver. */ int pid; uint8_t devaddr; uint8_t devep; uint8_t *data; int len; /* Internal use by the USB layer. */ USBCallback *complete_cb; void *complete_opaque; USBCallback *cancel_cb; void *cancel_opaque; }; /* Defer completion of a USB packet. The hadle_packet routine should then return USB_RET_ASYNC. Packets that complete immediately (before handle_packet returns) should not call this method. */ static inline void usb_defer_packet(USBPacket *p, USBCallback *cancel, void * opaque) { p->cancel_cb = cancel; p->cancel_opaque = opaque; } /* Notify the controller that an async packet is complete. This should only be called for packets previously deferred with usb_defer_packet, and should never be called from within handle_packet. */ static inline void usb_packet_complete(USBPacket *p) { p->complete_cb(p, p->complete_opaque); } /* Cancel an active packet. The packed must have been deferred with usb_defer_packet, and not yet completed. */ static inline void usb_cancel_packet(USBPacket * p) { p->cancel_cb(p, p->cancel_opaque); } void usb_attach(USBPort *port, USBDevice *dev); int usb_generic_handle_packet(USBDevice *s, USBPacket *p); int set_usb_string(uint8_t *buf, const char *str); void usb_send_msg(USBDevice *dev, int msg); void usb_packet_complete(USBPacket *p); /* usb hub */ USBDevice *usb_hub_init(int nb_ports); /* usb-uhci.c */ void usb_uhci_init(PCIBus *bus, int devfn); /* usb-ohci.c */ void usb_ohci_init(struct PCIBus *bus, int num_ports, int devfn); /* usb-linux.c */ USBDevice *usb_host_device_open(const char *devname); void usb_host_info(void); /* usb-hid.c */ USBDevice *usb_mouse_init(void); USBDevice *usb_tablet_init(void); /* usb-msd.c */ USBDevice *usb_msd_init(const char *filename);