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  • uspace/lib/drv/include/usb_iface.h

    r27ed734c r56bdd9a4  
    3939
    4040#include "ddf/driver.h"
     41#include <async.h>
    4142#include <usb/usb.h>
    42 typedef enum {
    43         /** Tell USB address assigned to device.
    44          * Parameters:
    45          * - devman handle id
    46          * Answer:
    47          * - EINVAL - unknown handle or handle not managed by this driver
    48          * - ENOTSUP - operation not supported (shall not happen)
    49          * - arbitrary error code if returned by remote implementation
    50          * - EOK - handle found, first parameter contains the USB address
    51          *
    52          * The handle must be the one used for binding USB address with
    53          * it (IPC_M_USBHC_BIND_ADDRESS), otherwise the host controller
    54          * (that this request would eventually reach) would not be able
    55          * to find it.
    56          * The problem is that this handle is actually assigned to the
    57          * function inside driver of the parent device (usually hub driver).
    58          * To bypass this problem, the initial caller specify handle as
    59          * zero and the first parent assigns the actual value.
    60          * See usb_iface_get_address_hub_child_impl() implementation
    61          * that could be assigned to device ops of a child device of in a
    62          * hub driver.
    63          * For example, the USB multi interface device driver (MID)
    64          * passes this initial zero without any modification because the
    65          * handle must be resolved by its parent.
    66          */
    67         IPC_M_USB_GET_MY_ADDRESS,
    6843
    69         /** Tell interface number given device can use.
    70          * Parameters
    71          * - devman handle id of the device
    72          * Answer:
    73          * - ENOTSUP - operation not supported (can also mean any interface)
    74          * - EOK - operation okay, first parameter contains interface number
    75          */
    76         IPC_M_USB_GET_INTERFACE,
    77 
    78         /** Tell devman handle of device host controller.
    79          * Parameters:
    80          * - none
    81          * Answer:
    82          * - EOK - request processed without errors
    83          * - ENOTSUP - this indicates invalid USB driver
    84          * Parameters of the answer:
    85          * - devman handle of HC caller is physically connected to
    86          */
    87         IPC_M_USB_GET_HOST_CONTROLLER_HANDLE
    88 } usb_iface_funcs_t;
     44int usb_get_my_address(async_exch_t *, usb_address_t *);
     45int usb_get_my_interface(async_exch_t *, int *);
     46int usb_get_hc_handle(async_exch_t *, devman_handle_t *);
    8947
    9048/** USB device communication interface. */
    9149typedef struct {
    9250        int (*get_my_address)(ddf_fun_t *, usb_address_t *);
    93         int (*get_interface)(ddf_fun_t *, devman_handle_t, int *);
     51        int (*get_my_interface)(ddf_fun_t *, int *);
    9452        int (*get_hc_handle)(ddf_fun_t *, devman_handle_t *);
    9553} usb_iface_t;
    96 
    9754
    9855#endif
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