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61 lines
2.2 KiB
PHP
61 lines
2.2 KiB
PHP
; HID default driver, part of USBHID driver.
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; Present only if compile-time setting HID_DUMP_UNCLAIMED is on.
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; Active for those devices when we do not have a specialized driver.
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; Just dumps everything to the debug board.
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if HID_DUMP_UNCLAIMED
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; Global constants.
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; They are assembled in a macro to separate code and data;
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; the code is located at the point of "include 'unclaimed.inc'",
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; the data are collected when workers_globals is instantiated.
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macro workers_globals
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{
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; include global constants from previous workers
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workers_globals
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align 4
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; Callbacks for HID layer.
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default_driver:
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dd default_driver_add_device
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dd default_driver_disconnect
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dd default_driver_begin_packet
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dd default_driver_array_overflow?
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dd default_driver_input_field
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dd default_driver_end_packet
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}
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; This procedure is called when HID layer detects a new driverless device.
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; in: ebx -> usb_device_data, edi -> collection
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; out: eax = device-specific data or NULL on error
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default_driver_add_device:
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; just return something nonzero, no matter what
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xor eax, eax
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inc eax
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ret
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; This procedure is called when HID layer processes every non-empty array field group.
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; in: edi -> keyboard_device_data (pointer returned from keyboard_driver_add_device)
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; in: ecx = fields count (always nonzero), edx = pointer to fields values
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; in: esi -> report_field_group
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; out: CF set => group is ok, CF cleared => group should be ignored
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default_driver_array_overflow?:
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; parse everything
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stc
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ret
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; This procedure is called from HID layer for every field.
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; in: ecx = field usage, edx = value, esi -> report_field_group
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default_driver_input_field:
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; Do not dump zero values in Variable fields,
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; they are present even if the corresponding control is inactive.
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test edx, edx
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jnz @f
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test byte [esi+report_field_group.flags], HID_FIELD_VARIABLE
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jnz .nodump
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@@:
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DEBUGF 1,'K : unclaimed HID input: usage=%x, value=%x\n',ecx,edx
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.nodump:
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; pass through
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; Three nothing-to-do procedures.
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default_driver_disconnect:
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default_driver_begin_packet:
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default_driver_end_packet:
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ret
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end if
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