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/*
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* QEMU USB API
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*
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* Copyright (c) 2005 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "block.h" |
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#include "qdev.h" |
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#include "qemu-queue.h" |
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#define USB_TOKEN_SETUP 0x2d |
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#define USB_TOKEN_IN 0x69 /* device -> host */ |
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#define USB_TOKEN_OUT 0xe1 /* host -> device */ |
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/* specific usb messages, also sent in the 'pid' parameter */
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#define USB_MSG_ATTACH 0x100 |
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#define USB_MSG_DETACH 0x101 |
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#define USB_MSG_RESET 0x102 |
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#define USB_RET_NODEV (-1) |
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#define USB_RET_NAK (-2) |
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#define USB_RET_STALL (-3) |
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#define USB_RET_BABBLE (-4) |
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#define USB_RET_ASYNC (-5) |
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#define USB_SPEED_LOW 0 |
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#define USB_SPEED_FULL 1 |
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#define USB_SPEED_HIGH 2 |
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#define USB_STATE_NOTATTACHED 0 |
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#define USB_STATE_ATTACHED 1 |
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//#define USB_STATE_POWERED 2
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#define USB_STATE_DEFAULT 3 |
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//#define USB_STATE_ADDRESS 4
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//#define USB_STATE_CONFIGURED 5
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#define USB_STATE_SUSPENDED 6 |
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#define USB_CLASS_AUDIO 1 |
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#define USB_CLASS_COMM 2 |
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#define USB_CLASS_HID 3 |
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#define USB_CLASS_PHYSICAL 5 |
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#define USB_CLASS_STILL_IMAGE 6 |
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#define USB_CLASS_PRINTER 7 |
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#define USB_CLASS_MASS_STORAGE 8 |
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#define USB_CLASS_HUB 9 |
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#define USB_CLASS_CDC_DATA 0x0a |
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#define USB_CLASS_CSCID 0x0b |
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#define USB_CLASS_CONTENT_SEC 0x0d |
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#define USB_CLASS_APP_SPEC 0xfe |
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#define USB_CLASS_VENDOR_SPEC 0xff |
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#define USB_DIR_OUT 0 |
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#define USB_DIR_IN 0x80 |
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#define USB_TYPE_MASK (0x03 << 5) |
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#define USB_TYPE_STANDARD (0x00 << 5) |
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#define USB_TYPE_CLASS (0x01 << 5) |
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#define USB_TYPE_VENDOR (0x02 << 5) |
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#define USB_TYPE_RESERVED (0x03 << 5) |
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#define USB_RECIP_MASK 0x1f |
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#define USB_RECIP_DEVICE 0x00 |
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#define USB_RECIP_INTERFACE 0x01 |
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#define USB_RECIP_ENDPOINT 0x02 |
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#define USB_RECIP_OTHER 0x03 |
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#define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8) |
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#define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8) |
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#define InterfaceRequest \
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((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
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#define InterfaceOutRequest \
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((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
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#define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8) |
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#define EndpointOutRequest \
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((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
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#define USB_REQ_GET_STATUS 0x00 |
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#define USB_REQ_CLEAR_FEATURE 0x01 |
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#define USB_REQ_SET_FEATURE 0x03 |
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#define USB_REQ_SET_ADDRESS 0x05 |
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#define USB_REQ_GET_DESCRIPTOR 0x06 |
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#define USB_REQ_SET_DESCRIPTOR 0x07 |
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#define USB_REQ_GET_CONFIGURATION 0x08 |
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#define USB_REQ_SET_CONFIGURATION 0x09 |
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#define USB_REQ_GET_INTERFACE 0x0A |
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#define USB_REQ_SET_INTERFACE 0x0B |
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#define USB_REQ_SYNCH_FRAME 0x0C |
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#define USB_DEVICE_SELF_POWERED 0 |
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#define USB_DEVICE_REMOTE_WAKEUP 1 |
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#define USB_DT_DEVICE 0x01 |
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#define USB_DT_CONFIG 0x02 |
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#define USB_DT_STRING 0x03 |
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#define USB_DT_INTERFACE 0x04 |
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#define USB_DT_ENDPOINT 0x05 |
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#define USB_ENDPOINT_XFER_CONTROL 0 |
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#define USB_ENDPOINT_XFER_ISOC 1 |
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#define USB_ENDPOINT_XFER_BULK 2 |
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#define USB_ENDPOINT_XFER_INT 3 |
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typedef struct USBBus USBBus; |
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typedef struct USBPort USBPort; |
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typedef struct USBDevice USBDevice; |
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typedef struct USBDeviceInfo USBDeviceInfo; |
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typedef struct USBPacket USBPacket; |
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/* definition of a USB device */
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struct USBDevice {
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DeviceState qdev; |
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USBDeviceInfo *info; |
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void *opaque;
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int speed;
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uint8_t addr; |
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char devname[32]; |
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int attached;
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int state;
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uint8_t setup_buf[8];
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uint8_t data_buf[1024];
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int remote_wakeup;
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int setup_state;
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int setup_len;
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int setup_index;
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}; |
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struct USBDeviceInfo {
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DeviceInfo qdev; |
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int (*init)(USBDevice *dev);
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/*
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* Process USB packet.
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* Called by the HC (Host Controller).
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*
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* Returns length of the transaction
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* or one of the USB_RET_XXX codes.
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*/
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int (*handle_packet)(USBDevice *dev, USBPacket *p);
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/*
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* Called when device is destroyed.
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*/
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void (*handle_destroy)(USBDevice *dev);
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/*
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* Reset the device
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*/
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void (*handle_reset)(USBDevice *dev);
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/*
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* Process control request.
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* Called from handle_packet().
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*
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* Returns length or one of the USB_RET_ codes.
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*/
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int (*handle_control)(USBDevice *dev, int request, int value, |
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int index, int length, uint8_t *data); |
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/*
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* Process data transfers (both BULK and ISOC).
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* Called from handle_packet().
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*
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* Returns length or one of the USB_RET_ codes.
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*/
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int (*handle_data)(USBDevice *dev, USBPacket *p);
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}; |
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typedef void (*usb_attachfn)(USBPort *port, USBDevice *dev); |
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/* USB port on which a device can be connected */
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struct USBPort {
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USBDevice *dev; |
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usb_attachfn attach; |
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void *opaque;
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int index; /* internal port index, may be used with the opaque */ |
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QTAILQ_ENTRY(USBPort) next; |
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}; |
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typedef void USBCallback(USBPacket * packet, void *opaque); |
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/* Structure used to hold information about an active USB packet. */
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struct USBPacket {
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/* Data fields for use by the driver. */
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int pid;
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uint8_t devaddr; |
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uint8_t devep; |
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uint8_t *data; |
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int len;
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/* Internal use by the USB layer. */
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USBCallback *complete_cb; |
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void *complete_opaque;
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USBCallback *cancel_cb; |
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void *cancel_opaque;
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}; |
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/* Defer completion of a USB packet. The hadle_packet routine should then
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return USB_RET_ASYNC. Packets that complete immediately (before
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handle_packet returns) should not call this method. */
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static inline void usb_defer_packet(USBPacket *p, USBCallback *cancel, |
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void * opaque)
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{ |
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p->cancel_cb = cancel; |
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p->cancel_opaque = opaque; |
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} |
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/* Notify the controller that an async packet is complete. This should only
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be called for packets previously deferred with usb_defer_packet, and
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should never be called from within handle_packet. */
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static inline void usb_packet_complete(USBPacket *p) |
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{ |
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p->complete_cb(p, p->complete_opaque); |
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} |
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/* Cancel an active packet. The packed must have been deferred with
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usb_defer_packet, and not yet completed. */
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static inline void usb_cancel_packet(USBPacket * p) |
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{ |
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p->cancel_cb(p, p->cancel_opaque); |
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} |
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void usb_attach(USBPort *port, USBDevice *dev);
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int usb_generic_handle_packet(USBDevice *s, USBPacket *p);
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int set_usb_string(uint8_t *buf, const char *str); |
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void usb_send_msg(USBDevice *dev, int msg); |
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/* usb-linux.c */
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USBDevice *usb_host_device_open(const char *devname); |
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int usb_host_device_close(const char *devname); |
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void usb_host_info(Monitor *mon);
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/* usb-hid.c */
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void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *)); |
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/* usb-msd.c */
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USBDevice *usb_msd_init(const char *filename); |
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BlockDriverState *usb_msd_get_bdrv(USBDevice *dev); |
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/* usb-net.c */
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USBDevice *usb_net_init(NICInfo *nd); |
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/* usb-bt.c */
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USBDevice *usb_bt_init(HCIInfo *hci); |
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/* usb-serial.c */
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USBDevice *usb_serial_init(const char *filename); |
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/* usb ports of the VM */
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#define VM_USB_HUB_SIZE 8 |
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/* usb-musb.c */
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enum musb_irq_source_e {
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musb_irq_suspend = 0,
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musb_irq_resume, |
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musb_irq_rst_babble, |
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musb_irq_sof, |
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musb_irq_connect, |
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musb_irq_disconnect, |
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musb_irq_vbus_request, |
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musb_irq_vbus_error, |
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musb_irq_rx, |
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musb_irq_tx, |
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musb_set_vbus, |
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musb_set_session, |
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__musb_irq_max, |
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}; |
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typedef struct MUSBState MUSBState; |
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MUSBState *musb_init(qemu_irq *irqs); |
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uint32_t musb_core_intr_get(MUSBState *s); |
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void musb_core_intr_clear(MUSBState *s, uint32_t mask);
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void musb_set_size(MUSBState *s, int epnum, int size, int is_tx); |
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/* usb-bus.c */
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struct USBBus {
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BusState qbus; |
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int busnr;
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int nfree;
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int nused;
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QTAILQ_HEAD(, USBPort) free; |
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QTAILQ_HEAD(, USBPort) used; |
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QTAILQ_ENTRY(USBBus) next; |
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}; |
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USBBus *usb_bus_new(DeviceState *host); |
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USBBus *usb_bus_find(int busnr);
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void usb_qdev_register(USBDeviceInfo *info);
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void usb_qdev_register_many(USBDeviceInfo *info);
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USBDevice *usb_create(USBBus *bus, const char *name); |
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USBDevice *usb_create_simple(USBBus *bus, const char *name); |
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void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index, |
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usb_attachfn attach); |
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int usb_device_attach(USBDevice *dev);
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int usb_device_delete_addr(int busnr, int addr); |
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static inline USBBus *usb_bus_from_device(USBDevice *d) |
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{ |
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return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
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} |