VectorKappa/universal-pidff
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Map buttons manually to present more than 80

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Lawstorant
2024-08-15 15:19:49 +02:00
committed by Makarenko Oleg
parent 9e27df12cb
commit d7633c82fd
1 changed files with 32 additions and 0 deletions
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32
hid-pidff-wrapper.c
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@@ -9,9 +9,13 @@
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/input-event-codes.h>
#include "hid-ids.h"
#include "hid-pidff.h"
#define BTN_RANGE (BTN_9 - BTN_0 + 1)
#define JOY_RANGE (BTN_DEAD - BTN_JOYSTICK + 1)
static const struct hid_device_id pidff_wheel_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MOZA, USB_DEVICE_ID_MOZA_R3),
.driver_data = PIDFF_QUIRK_FIX_WHEEL_DIRECTION },
@@ -53,6 +57,33 @@ static u8 *universal_pidff_report_fixup(struct hid_device *hdev, __u8 *rdesc,
}
static int universal_pidff_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
// Let the default behavior handle mapping if usage is not a button
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
return 0;
int code = ((usage->hid - 1) & HID_USAGE);
int new_code = code + BTN_0;
if (new_code > BTN_9)
new_code = code + BTN_JOYSTICK - BTN_RANGE;
if (new_code > BTN_DEAD)
new_code = code + KEY_MACRO1 - BTN_RANGE - JOY_RANGE;
// Map overflowing buttons to KEY_RESERVED for the upcomng new input usages
if (new_code > KEY_MAX)
new_code = KEY_RESERVED;
hid_map_usage(hi, usage, bit, max, EV_KEY, new_code);
hid_dbg(hdev, "Button %d: usage %d", code, new_code);
return 1;
}
/*
* Check if the device is PID and initialize it
* Add quirks after initialisation
@@ -98,6 +129,7 @@ static int universal_pidff_input_configured(struct hid_device *hdev,
static struct hid_driver universal_pidff = {
.name = "hid-universal-pidff",
.id_table = pidff_wheel_devices,
.input_mapping = universal_pidff_input_mapping,
.probe = universal_pidff_probe,
.input_configured = universal_pidff_input_configured,
.report_fixup = universal_pidff_report_fixup