mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-09-05 19:08:12 +00:00
Code Issues Packages Projects Releases Wiki Activity

joystick: Fix GIP fast ACK issue

Browse Source 
By moving the message sending onto the main thread and adding a small timeout
we can now ensure the ACKs are sent fast enough to avoid the firmware bugs in
these controllers.
This commit is contained in:
Vicki Pfau
2025-05-07 15:34:28 -07:00
committed by Sam Lantinga
parent 9e0edea16f
commit 82899501b5
1 changed files with 7 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/joystick/hidapi/SDL_hidapi_gip.c
View File

@@ -217,6 +217,7 @@
/* Internal constants, not part of protocol */
#define GIP_HELLO_TIMEOUT 2000
#define GIP_ACME_TIMEOUT 10
#define GIP_DEFAULT_IN_SYSTEM_MESSAGES 0x5e
#define GIP_DEFAULT_OUT_SYSTEM_MESSAGES 0x472
@@ -348,14 +349,8 @@ static const GIP_Quirks quirks[] = {
{ USB_VENDOR_POWERA, USB_PRODUCT_BDA_XB1_FIGHTPAD, 0,
.filtered_features = GIP_FEATURE_MOTOR_CONTROL },
/*
* The controller can attempt to resend the metadata too quickly, but has
* bugs handling reliable message handling if things get out of sync.
* However, since it just lets us bypass the metadata exchange, let's just
* do that instead of having an unreliable init
*/
{ USB_VENDOR_POWERA, USB_PRODUCT_BDA_XB1_CLASSIC, 0,
.quirks = GIP_QUIRK_BROKEN_METADATA | GIP_QUIRK_NO_IMPULSE_VIBRATION },
.quirks = GIP_QUIRK_NO_IMPULSE_VIBRATION },
{ USB_VENDOR_RAZER, USB_PRODUCT_RAZER_ATROX, 0,
.filtered_features = GIP_FEATURE_MOTOR_CONTROL,
@@ -483,6 +478,7 @@ typedef struct GIP_Device
Uint64 hello_deadline;
bool got_hello;
bool reset_for_metadata;
int timeout;
GIP_Attachment *attachments[MAX_ATTACHMENTS];
} GIP_Device;
@@ -747,7 +743,7 @@ static bool GIP_SendSystemMessage(
GIP_SequenceNext(attachment, message_type, true),
bytes,
num_bytes,
true,
false,
NULL,
NULL);
}
@@ -1216,6 +1212,7 @@ static bool GIP_EnsureMetadata(GIP_Attachment *attachment)
GIP_SetMetadataDefaults(attachment);
return GIP_SendInitSequence(attachment);
} else if (attachment->device->got_hello) {
attachment->device->timeout = GIP_ACME_TIMEOUT;
attachment->got_metadata = GIP_METADATA_PENDING;
attachment->metadata_next = SDL_GetTicks() + 500;
attachment->metadata_retries = 0;
@@ -2609,7 +2606,8 @@ static bool HIDAPI_DriverGIP_UpdateDevice(SDL_HIDAPI_Device *device)
bool perform_reset = false;
Uint64 timestamp;
while ((num_bytes = SDL_hid_read_timeout(device->dev, bytes, sizeof(bytes), 0)) > 0) {
while ((num_bytes = SDL_hid_read_timeout(device->dev, bytes, sizeof(bytes), ctx->timeout)) > 0) {
ctx->timeout = 0;
int parsed = GIP_ReceivePacket(ctx, bytes, num_bytes);
if (parsed <= 0) {
break;