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Add a workaround for the Brawler 64 wireless gamepad

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This controller (or its receiver) needs a pause between the
"get caps" and "get status" commands. Introduce a pause
of a duration based on the poll interval.

Unfortunately poll interval that works with this controller is 2ms.
This commit is contained in:
Raphael Assenat 2021-02-17 22:41:13 +09:00
parent ee3adafd26
commit e5f6c6ee02
1 changed files with 14 additions and 1 deletions
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15
n64.c
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@ -1,5 +1,5 @@
/* gc_n64_usb : Gamecube or N64 controller to USB firmware
Copyright (C) 2007-2016 Raphael Assenat <raph@raphnet.net>
Copyright (C) 2007-2021 Raphael Assenat <raph@raphnet.net>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -21,6 +21,7 @@
#include "gamepads.h"
#include "n64.h"
#include "gcn64_protocol.h"
#include "eeprom.h"
#undef BUTTON_A_RUMBLE_TEST
@ -110,6 +111,18 @@ static char n64Update(unsigned char chn)
return -1;
}
/* The brawler 64 wireless gamepad does not like when the get caps command is followed
* too closely by the get status command. Without a long pause between the two commands,
* it just returns an all zeros. */
if (g_eeprom_data.cfg.poll_interval[0] >= 4) {
_delay_ms(2.5);
} else if (g_eeprom_data.cfg.poll_interval[0] >= 3) {
_delay_ms(1.5);
} else if (g_eeprom_data.cfg.poll_interval[0] >= 2) {
_delay_ms(1.25); // does not work at 1ms
}
/* Detect when a pack becomes present and schedule initialisation when it happens. */
if ((caps[2] & 0x01) && (n64_rumble_state[chn] == RSTATE_UNAVAILABLE)) {
n64_rumble_state[chn] = RSTATE_INIT;