Subversion Repositories Kolibri OS

; HID default driver, part of USBHID driver.

; Present only if compile-time setting HID_DUMP_UNCLAIMED is on.

; Active for those devices when we do not have a specialized driver.

; Just dumps everything to the debug board.

if HID_DUMP_UNCLAIMED

; Global constants.

; They are assembled in a macro to separate code and data;

; the code is located at the point of "include 'unclaimed.inc'",

; the data are collected when workers_globals is instantiated.

macro workers_globals

{

; include global constants from previous workers

        workers_globals

align 4

; Callbacks for HID layer.

default_driver:

        dd      default_driver_add_device

        dd      default_driver_disconnect

        dd      default_driver_begin_packet

        dd      default_driver_array_overflow?

        dd      default_driver_input_field

        dd      default_driver_end_packet

}

; This procedure is called when HID layer detects a new driverless device.

; in: ebx -> usb_device_data, edi -> collection

; out: eax = device-specific data or NULL on error

default_driver_add_device:

; just return something nonzero, no matter what

        xor     eax, eax

        inc     eax

        ret

; This procedure is called when HID layer processes every non-empty array field group.

; in: edi -> keyboard_device_data (pointer returned from keyboard_driver_add_device)

; in: ecx = fields count (always nonzero), edx = pointer to fields values

; in: esi -> report_field_group

; out: CF set => group is ok, CF cleared => group should be ignored

default_driver_array_overflow?:

; parse everything

        stc

        ret

; This procedure is called from HID layer for every field.

; in: ecx = field usage, edx = value, esi -> report_field_group

default_driver_input_field:

; Do not dump zero values in Variable fields,

; they are present even if the corresponding control is inactive.

        test    edx, edx

        jnz     @f

        test    byte [esi+report_field_group.flags], HID_FIELD_VARIABLE

        jnz     .nodump

@@:

        DEBUGF 1,'K : unclaimed HID input: usage=%x, value=%x\n',ecx,edx

.nodump:

; pass through

; Three nothing-to-do procedures.

default_driver_disconnect:

default_driver_begin_packet:

default_driver_end_packet:

        ret

end if