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/*
* 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-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);
USBDevice *usb_keyboard_init(void);
/* usb-msd.c */
USBDevice *usb_msd_init(const char *filename);
/* usb-wacom.c */
USBDevice *usb_wacom_init(void);
/* usb ports of the VM */
void qemu_register_usb_port(USBPort *port, void *opaque, int index,
usb_attachfn attach);
#define VM_USB_HUB_SIZE 8
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