Archipelago » qemu

/*

 * 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

#define USB_ENDPOINT_XFER_CONTROL        0

#define USB_ENDPOINT_XFER_ISOC                1

#define USB_ENDPOINT_XFER_BULK                2

#define USB_ENDPOINT_XFER_INT                3

typedef struct USBPort USBPort;

typedef struct USBDevice USBDevice;

typedef struct USBPacket USBPacket;

/* definition of a USB device */

struct USBDevice {

    void *opaque;

    /* 

     * Process USB packet. 

     * Called by the HC (Host Controller).

     *

     * Returns length of the transaction 

     * or one of the USB_RET_XXX codes.

     */ 

    int (*handle_packet)(USBDevice *dev, USBPacket *p);

    /* 

     * Called when device is destroyed.

     */

    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. */

    /*

     * Reset the device

     */  

    void (*handle_reset)(USBDevice *dev);

    /*

     * Process control request.

     * Called from handle_packet().

     *

     * Returns length or one of the USB_RET_ codes.

     */

    int (*handle_control)(USBDevice *dev, int request, int value,

                          int index, int length, uint8_t *data);

    /*

     * Process data transfers (both BULK and ISOC).

     * Called from handle_packet().

     *

     * Returns length or one of the USB_RET_ codes.

     */

    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);

}

int usb_device_add_dev(USBDevice *dev);

int usb_device_del_addr(int bus_num, int addr);

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);

/* usb hub */

USBDevice *usb_hub_init(int nb_ports);

/* usb-linux.c */

USBDevice *usb_host_device_open(const char *devname);

int usb_host_device_close(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);

void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *));

/* usb-msd.c */

USBDevice *usb_msd_init(const char *filename);

/* usb-net.c */

USBDevice *usb_net_init(NICInfo *nd);

/* usb-bt.c */

USBDevice *usb_bt_init(HCIInfo *hci);

/* usb-wacom.c */

USBDevice *usb_wacom_init(void);

/* usb-serial.c */

USBDevice *usb_serial_init(const char *filename);

/* 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

/* usb-musb.c */

enum musb_irq_source_e {

    musb_irq_suspend = 0,

    musb_irq_resume,

    musb_irq_rst_babble,

    musb_irq_sof,

    musb_irq_connect,

    musb_irq_disconnect,

    musb_irq_vbus_request,

    musb_irq_vbus_error,

    musb_irq_rx,

    musb_irq_tx,

    musb_set_vbus,

    musb_set_session,

    __musb_irq_max,

};

struct musb_s;

struct musb_s *musb_init(qemu_irq *irqs);

uint32_t musb_core_intr_get(struct musb_s *s);

void musb_core_intr_clear(struct musb_s *s, uint32_t mask);

void musb_set_size(struct musb_s *s, int epnum, int size, int is_tx);