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Explain WHEEL_DIRECTION_FIX value

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Lawstorant
2024-07-12 15:46:42 +02:00
parent ffa4a05a1b
commit 1da641aee4
1 changed files with 9 additions and 1 deletions
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10
hid-pidff.c
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@@ -25,6 +25,14 @@
#define PID_EFFECTS_MAX 64 #define PID_EFFECTS_MAX 64
/*
* This is 16384 or 90 degrees in polar coordinates (up)
* Racing games exclusively use polar coordinates but sometimes
* SDL/Proton mess with this value as they try to do
* some conversions to fix FFB for flight sticks
*/
#define PIDFF_FIXED_DIRECTION 0x4000
/* Report usage table used to put reports into an array */ /* Report usage table used to put reports into an array */
#define PID_SET_EFFECT 0 #define PID_SET_EFFECT 0
@@ -343,7 +351,7 @@ static void pidff_set_effect_report(struct pidff_device *pidff,
unsigned short direction = effect->direction; unsigned short direction = effect->direction;
if (pidff->quirks & PIDFF_QUIRK_FIX_WHEEL_DIRECTION) if (pidff->quirks & PIDFF_QUIRK_FIX_WHEEL_DIRECTION)
direction = 0x4000; direction = PIDFF_FIXED_DIRECTION;
pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] = pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0]; pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];