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Dynamically parse report IDs

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This commit is contained in:
Werner Sembach
2025-06-02 16:38:31 +02:00
committed by Adam Honse
parent f54984943a
commit 76237c0a35
2 changed files with 180 additions and 6 deletions
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79
Controllers/HIDLampArrayController/HIDLampArrayController.cpp
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@@ -9,7 +9,9 @@
| SPDX-License-Identifier: GPL-2.0-only |
\*---------------------------------------------------------*/
#include <cstdio>
#include <cstring>
#include "hid_util.h"
#include "HIDLampArrayController.h"
HIDLampArrayController::HIDLampArrayController(hid_device *dev_handle, const char *path, std::string dev_name)
@@ -19,13 +21,78 @@ HIDLampArrayController::HIDLampArrayController(hid_device *dev_handle, const cha
name = dev_name;
/*-----------------------------------------------------*\
| Get LampArrayAttributesReport |
| Parse report IDs from descriptor |
\*-----------------------------------------------------*/
ids.LampArrayAttributesReportID = 0x01;
ids.LampAttributesRequestReportID = 0x02;
ids.LampAttributesResponseReportID = 0x03;
ids.LampMultiUpdateReportID = 0x04;
ids.LampArrayControlReportID = 0x06;
unsigned char data_len = 0;
unsigned char key = 0;
unsigned char key_cmd = 0;
unsigned char key_size = 0;
unsigned int pos = 0;
unsigned char report_descriptor[HID_API_MAX_REPORT_DESCRIPTOR_SIZE];
unsigned char report_id = 0;
unsigned int size = hid_get_report_descriptor(dev, report_descriptor, sizeof(report_descriptor));
unsigned int usage = 0;
unsigned char usage_page = 0;
while(pos < size)
{
get_hid_item_size(report_descriptor, size, pos, &data_len, &key_size);
key = report_descriptor[pos];
key_cmd = key & 0xFC;
switch(key_cmd)
{
case 0x4:
usage_page = get_hid_report_bytes(report_descriptor, size, data_len, pos);
break;
case 0x8:
usage = get_hid_report_bytes(report_descriptor, size, data_len, pos);
if(data_len == 4)
{
usage_page = usage >> 16;
usage &= 0x0000FFFF;
}
if(usage_page == 0x59 && report_id)
{
switch(usage)
{
case 0x02:
ids.LampArrayAttributesReportID = report_id;
break;
case 0x20:
ids.LampAttributesRequestReportID = report_id;
break;
case 0x22:
ids.LampAttributesResponseReportID = report_id;
break;
case 0x50:
ids.LampMultiUpdateReportID = report_id;
break;
case 0x60:
ids.LampRangeUpdateReportID = report_id;
break;
case 0x70:
ids.LampArrayControlReportID = report_id;
break;
}
report_id = 0;
}
break;
case 0x84:
report_id = get_hid_report_bytes(report_descriptor, size, data_len, pos);
break;
}
pos += data_len + key_size;
}
/*-----------------------------------------------------*\
| Get LampArrayAttributesReport |