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![Andrew Eikum](/assets/img/avatar_default.png)
Signed-off-by: Andrew Eikum <aeikum@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/*
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* Common controller functions and structures
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*
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* Copyright 2018 Aric Stewart
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/* Blocks of data for building HID device descriptions */
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static const BYTE REPORT_HEADER[] = {
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0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
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0x09, 0x00, /* USAGE (??) */
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0xa1, 0x01, /* COLLECTION (Application) */
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0x09, 0x01, /* USAGE () */
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0xa1, 0x00, /* COLLECTION (Physical) */
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};
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#define IDX_HEADER_PAGE 1
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#define IDX_HEADER_USAGE 3
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static const BYTE REPORT_BUTTONS[] = {
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0x05, 0x09, /* USAGE_PAGE (Button) */
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0x19, 0x01, /* USAGE_MINIMUM (Button 1) */
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0x29, 0x03, /* USAGE_MAXIMUM (Button 3) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
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0x35, 0x00, /* PHYSICAL_MINIMUM (0) */
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0x45, 0x01, /* PHYSICAL_MAXIMUM (1) */
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0x95, 0x03, /* REPORT_COUNT (3) */
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0x75, 0x01, /* REPORT_SIZE (1) */
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0x81, 0x02, /* INPUT (Data,Var,Abs) */
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};
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#define IDX_BUTTON_MIN_USAGE 3
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#define IDX_BUTTON_MAX_USAGE 5
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#define IDX_BUTTON_COUNT 15
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static const BYTE REPORT_PADDING[] = {
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0x95, 0x03, /* REPORT_COUNT (3) */
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0x75, 0x01, /* REPORT_SIZE (1) */
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0x81, 0x03, /* INPUT (Cnst,Var,Abs) */
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};
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#define IDX_PADDING_BIT_COUNT 1
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static const BYTE REPORT_AXIS_HEADER[] = {
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0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
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};
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#define IDX_AXIS_PAGE 1
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static const BYTE REPORT_AXIS_USAGE[] = {
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0x09, 0x30, /* USAGE (X) */
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};
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#define IDX_AXIS_USAGE 1
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static const BYTE REPORT_REL_AXIS_TAIL[] = {
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0x15, 0x81, /* LOGICAL_MINIMUM (0) */
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0x25, 0x7f, /* LOGICAL_MAXIMUM (0xffff) */
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0x75, 0x08, /* REPORT_SIZE (16) */
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0x95, 0x02, /* REPORT_COUNT (2) */
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0x81, 0x06, /* INPUT (Data,Var,Rel) */
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};
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#define IDX_REL_AXIS_COUNT 7
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static const BYTE REPORT_HATSWITCH[] = {
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0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
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0x09, 0x39, /* USAGE (Hatswitch) */
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0x15, 0x01, /* LOGICAL_MINIMUM (1) */
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0x25, 0x08, /* LOGICAL_MAXIMUM (0x08) */
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0x35, 0x00, /* PHYSICAL_MINIMUM (0) */
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0x45, 0x08, /* PHYSICAL_MAXIMUM (8) */
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0x75, 0x04, /* REPORT_SIZE (4) */
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0x95, 0x01, /* REPORT_COUNT (1) */
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0x81, 0x02, /* INPUT (Data,Var,Abs) */
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};
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#define IDX_HATSWITCH_COUNT 15
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static const BYTE REPORT_TAIL[] = {
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0xc0, /* END_COLLECTION */
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0xc0 /* END_COLLECTION */
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};
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static inline BYTE *add_button_block(BYTE* report_ptr, BYTE usage_min, BYTE usage_max)
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{
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memcpy(report_ptr, REPORT_BUTTONS, sizeof(REPORT_BUTTONS));
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report_ptr[IDX_BUTTON_MIN_USAGE] = usage_min;
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report_ptr[IDX_BUTTON_MAX_USAGE] = usage_max;
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report_ptr[IDX_BUTTON_COUNT] = (usage_max - usage_min) + 1;
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return report_ptr + sizeof(REPORT_BUTTONS);
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}
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static inline BYTE *add_padding_block(BYTE *report_ptr, BYTE bitcount)
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{
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memcpy(report_ptr, REPORT_PADDING, sizeof(REPORT_PADDING));
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report_ptr[IDX_PADDING_BIT_COUNT] = bitcount;
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return report_ptr + sizeof(REPORT_PADDING);
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}
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static inline BYTE *add_hatswitch(BYTE *report_ptr, INT count)
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{
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memcpy(report_ptr, REPORT_HATSWITCH, sizeof(REPORT_HATSWITCH));
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report_ptr[IDX_HATSWITCH_COUNT] = count;
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return report_ptr + sizeof(REPORT_HATSWITCH);
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}
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