forked from KolibriOS/kolibrios
180 lines
6.4 KiB
PHP
180 lines
6.4 KiB
PHP
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; HID multimedia keyboard driver, part of USBHID driver.
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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 'multimedia.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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multimedia_driver:
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dd multimedia_driver_add_device
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dd multimedia_driver_disconnect
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dd multimedia_driver_begin_packet
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dd multimedia_driver_array_overflow?
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dd multimedia_driver_input_field
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dd multimedia_driver_end_packet
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}
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; Data that are specific for one keyboard device.
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struct multimedia_device_data
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usbdev dd ? ; pointer to device_data of USB and HID layers
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last_pressed dd ?
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ends
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; This procedure is called when HID layer detects a new keyboard.
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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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proc multimedia_driver_add_device
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; 1. Allocate memory for keyboard_device_data. If failed, return NULL.
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movi eax, sizeof.multimedia_device_data
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invoke Kmalloc
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test eax, eax
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jz .nothing
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; 2. Initialize keyboard_device_data: store pointer to USB layer data,
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; zero some fields, initialize bit positions to -1.
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mov [eax+multimedia_device_data.usbdev], ebx
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mov [eax+multimedia_device_data.last_pressed], 0
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.nothing:
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ret
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endp
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; This procedure is called when HID layer detects disconnect of a previously
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; connected keyboard.
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; in: edi -> multimedia_device_data (pointer returned from multimedia_driver_add_device)
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proc multimedia_driver_disconnect
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; We should free data in CloseKeyboard, not here.
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ret
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endp
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; This procedure is called when HID layer starts processing a new input packet
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; from a keyboard.
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; in: edi -> keyboard_device_data (pointer returned from keyboard_driver_add_device)
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proc multimedia_driver_begin_packet
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; Nothing to do.
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ret
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endp
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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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proc multimedia_driver_array_overflow?
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; The keyboard signals array overflow by filling the entire array with
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; USAGE_KBD_ROLLOVER codes.
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mov eax, [edx] ; eax = first field in the array
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sub eax, USAGE_KBD_ROLLOVER ; eax = 0 if overflow, nonzero otherwise
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neg eax ; CF cleared if eax was zero, CF set if eax was nonzero
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ret
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endp
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; This procedure is called from HID layer for every field.
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; in: edi -> keyboard_device_data (pointer returned from keyboard_driver_add_device)
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; in: ecx = field usage, edx = value, esi -> report_field_group
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proc multimedia_driver_input_field
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if HID_DUMP_UNCLAIMED
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.unclaimed = default_driver_input_field
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end if
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test edx, edx
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jnz @f
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cmp [edi+multimedia_device_data.last_pressed], ecx
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jne .nothing
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@@:
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mov eax, 0x19
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cmp ecx, USAGE_CONSUMER + 0xB5 ; Next track
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je .multimedia_key
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mov al, 0x10
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cmp ecx, USAGE_CONSUMER + 0xB6 ; Previous track
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je .multimedia_key
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mov al, 0x24
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cmp ecx, USAGE_CONSUMER + 0xB7 ; Stop
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je .multimedia_key
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mov al, 0x22
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cmp ecx, USAGE_CONSUMER + 0xCD ; Play/pause
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je .multimedia_key
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mov al, 0x20
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cmp ecx, USAGE_CONSUMER + 0xE2 ; Mute
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je .multimedia_key
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mov al, 0x30
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cmp ecx, USAGE_CONSUMER + 0xE9 ; Volume up
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je .multimedia_key
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mov al, 0x2E
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cmp ecx, USAGE_CONSUMER + 0xEA ; Volume down
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je .multimedia_key
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mov al, 0x6D
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cmp ecx, USAGE_CONSUMER + 0x183 ; Media select
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je .multimedia_key
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mov al, 0x6C
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cmp ecx, USAGE_CONSUMER + 0x18A ; E-Mail
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je .multimedia_key
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mov al, 0x21
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cmp ecx, USAGE_CONSUMER + 0x192 ; Calculator
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je .multimedia_key
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mov al, 0x6B
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cmp ecx, USAGE_CONSUMER + 0x194 ; My computer
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je .multimedia_key
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mov al, 0x65
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cmp ecx, USAGE_CONSUMER + 0x221 ; WWW Search
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je .multimedia_key
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mov al, 0x32
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cmp ecx, USAGE_CONSUMER + 0x223 ; WWW Home
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je .multimedia_key
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mov al, 0x6a
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cmp ecx, USAGE_CONSUMER + 0x224 ; WWW Back
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je .multimedia_key
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mov al, 0x69
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cmp ecx, USAGE_CONSUMER + 0x225 ; WWW forward
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je .multimedia_key
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mov al, 0x68
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cmp ecx, USAGE_CONSUMER + 0x226 ; WWW Stop
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je .multimedia_key
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mov al, 0x67
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cmp ecx, USAGE_CONSUMER + 0x227 ; WWW refresh
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je .multimedia_key
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mov al, 0x66
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cmp ecx, USAGE_CONSUMER + 0x22A ; WWW favorites
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je .multimedia_key
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jmp .unclaimed
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.multimedia_key:
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; 1d. Further actions are slightly different for key press and key release.
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; Decide what to do.
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test edx, edx
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jz .multimedia_key_released
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.multimedia_key_pressed:
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; The key is pressed.
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push ecx
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mov ecx, 0xE0
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invoke SetKeyboardData
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pop ecx
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invoke SetKeyboardData
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ret
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.multimedia_key_released:
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mov [edi+multimedia_device_data.last_pressed], 0
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; The key is released.
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or cl, 0x80
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push ecx
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mov ecx, 0xE0
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invoke SetKeyboardData
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pop ecx
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invoke SetKeyboardData
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ret
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.nothing:
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ret
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endp
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; This procedure is called when HID layer ends processing a new input packet
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; from a keyboard.
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; in: edi -> keyboard_device_data (pointer returned from keyboard_driver_add_device)
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proc multimedia_driver_end_packet
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; Nothing to do.
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ret
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endp
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