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/* | ||
Simple DirectMedia Layer | ||
Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org> | ||
This software is provided 'as-is', without any express or implied | ||
warranty. In no event will the authors be held liable for any damages | ||
arising from the use of this software. | ||
Permission is granted to anyone to use this software for any purpose, | ||
including commercial applications, and to alter it and redistribute it | ||
freely, subject to the following restrictions: | ||
1. The origin of this software must not be misrepresented; you must not | ||
claim that you wrote the original software. If you use this software | ||
in a product, an acknowledgment in the product documentation would be | ||
appreciated but is not required. | ||
2. Altered source versions must be plainly marked as such, and must not be | ||
misrepresented as being the original software. | ||
3. This notice may not be removed or altered from any source distribution. | ||
*/ | ||
#include "../../SDL_internal.h" | ||
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#ifdef SDL_JOYSTICK_HIDAPI | ||
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#include "SDL_hints.h" | ||
#include "SDL_log.h" | ||
#include "SDL_events.h" | ||
#include "SDL_timer.h" | ||
#include "SDL_haptic.h" | ||
#include "SDL_joystick.h" | ||
#include "SDL_gamecontroller.h" | ||
#include "../SDL_sysjoystick.h" | ||
#include "SDL_hidapijoystick_c.h" | ||
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#ifdef SDL_JOYSTICK_HIDAPI_GAMECUBE | ||
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typedef struct { | ||
SDL_JoystickID joysticks[4]; | ||
Uint8 wireless[4]; | ||
Uint8 rumbleAllowed[4]; | ||
Uint8 rumble[5]; | ||
Uint32 rumbleExpiration[4]; | ||
/* Without this variable, hid_write starts to lag a TON */ | ||
SDL_bool rumbleUpdate; | ||
} SDL_DriverGameCube_Context; | ||
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static SDL_bool | ||
HIDAPI_DriverGameCube_IsSupportedDevice(Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, const char *name) | ||
{ | ||
if (vendor_id == 0x057e && product_id == 0x0337) { | ||
/* Nintendo Co., Ltd. Wii U GameCube Controller Adapter */ | ||
return SDL_TRUE; | ||
} | ||
return SDL_FALSE; | ||
} | ||
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static const char * | ||
HIDAPI_DriverGameCube_GetDeviceName(Uint16 vendor_id, Uint16 product_id) | ||
{ | ||
return "Nintendo GameCube Controller"; | ||
} | ||
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static SDL_bool | ||
HIDAPI_DriverGameCube_InitDevice(SDL_HIDAPI_Device *device) | ||
{ | ||
SDL_DriverGameCube_Context *ctx; | ||
Uint8 packet[37]; | ||
Uint8 *curSlot; | ||
Uint8 i; | ||
int size; | ||
Uint8 initMagic = 0x13; | ||
Uint8 rumbleMagic = 0x11; | ||
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ctx = (SDL_DriverGameCube_Context *)SDL_calloc(1, sizeof(*ctx)); | ||
if (!ctx) { | ||
SDL_OutOfMemory(); | ||
return SDL_FALSE; | ||
} | ||
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device->dev = hid_open_path(device->path, 0); | ||
if (!device->dev) { | ||
SDL_free(ctx); | ||
SDL_SetError("Couldn't open %s", device->path); | ||
return SDL_FALSE; | ||
} | ||
device->context = ctx; | ||
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ctx->joysticks[0] = -1; | ||
ctx->joysticks[1] = -1; | ||
ctx->joysticks[2] = -1; | ||
ctx->joysticks[3] = -1; | ||
ctx->rumble[0] = rumbleMagic; | ||
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/* This is all that's needed to initialize the device. Really! */ | ||
if (hid_write(device->dev, &initMagic, sizeof(initMagic)) != sizeof(initMagic)) { | ||
SDL_SetError("Couldn't initialize WUP-028"); | ||
goto error; | ||
} | ||
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/* Add all the applicable joysticks */ | ||
while ((size = hid_read_timeout(device->dev, packet, sizeof(packet), 0)) > 0) { | ||
if (size < 37 || packet[0] != 0x21) { | ||
continue; /* Nothing to do yet...? */ | ||
} | ||
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/* Go through all 4 slots */ | ||
curSlot = packet + 1; | ||
for (i = 0; i < 4; i += 1, curSlot += 9) { | ||
ctx->wireless[i] = (curSlot[0] & 0x20) != 0; | ||
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/* Only allow rumble if the adapter's second USB cable is connected */ | ||
ctx->rumbleAllowed[i] = (curSlot[0] & 0x04) != 0 && !ctx->wireless[i]; | ||
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if (curSlot[0] & 0x30) { /* 0x10 - Wired, 0x20 - Wireless */ | ||
if (ctx->joysticks[i] == -1) { | ||
HIDAPI_JoystickConnected(device, &ctx->joysticks[i]); | ||
} | ||
} else { | ||
if (ctx->joysticks[i] != -1) { | ||
HIDAPI_JoystickDisconnected(device, ctx->joysticks[i]); | ||
ctx->joysticks[i] = -1; | ||
} | ||
continue; | ||
} | ||
} | ||
} | ||
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return SDL_TRUE; | ||
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error: | ||
if (device->dev) { | ||
hid_close(device->dev); | ||
device->dev = NULL; | ||
} | ||
if (device->context) { | ||
SDL_free(device->context); | ||
device->context = NULL; | ||
} | ||
return SDL_FALSE; | ||
} | ||
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static SDL_bool | ||
HIDAPI_DriverGameCube_UpdateDevice(SDL_HIDAPI_Device *device) | ||
{ | ||
SDL_DriverGameCube_Context *ctx = (SDL_DriverGameCube_Context *)device->context; | ||
SDL_Joystick *joystick; | ||
Uint8 packet[37]; | ||
Uint8 *curSlot; | ||
Uint32 now; | ||
Uint8 i; | ||
int size; | ||
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/* Read input packet */ | ||
while ((size = hid_read_timeout(device->dev, packet, sizeof(packet), 0)) > 0) { | ||
if (size < 37 || packet[0] != 0x21) { | ||
continue; /* Nothing to do right now...? */ | ||
} | ||
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/* Go through all 4 slots */ | ||
curSlot = packet + 1; | ||
for (i = 0; i < 4; i += 1, curSlot += 9) { | ||
ctx->wireless[i] = (curSlot[0] & 0x20) != 0; | ||
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/* Only allow rumble if the adapter's second USB cable is connected */ | ||
ctx->rumbleAllowed[i] = (curSlot[0] & 0x04) != 0 && !ctx->wireless[i]; | ||
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if (curSlot[0] & 0x30) { /* 0x10 - Wired, 0x20 - Wireless */ | ||
if (ctx->joysticks[i] == -1) { | ||
HIDAPI_JoystickConnected(device, &ctx->joysticks[i]); | ||
} | ||
joystick = SDL_JoystickFromInstanceID(ctx->joysticks[i]); | ||
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/* Hasn't been opened yet, skip */ | ||
if (joystick == NULL) { | ||
continue; | ||
} | ||
} else { | ||
if (ctx->joysticks[i] != -1) { | ||
HIDAPI_JoystickDisconnected(device, ctx->joysticks[i]); | ||
ctx->joysticks[i] = -1; | ||
} | ||
continue; | ||
} | ||
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#define READ_BUTTON(off, flag, button) \ | ||
SDL_PrivateJoystickButton( \ | ||
joystick, \ | ||
button, \ | ||
(curSlot[off] & flag) ? SDL_PRESSED : SDL_RELEASED \ | ||
); | ||
READ_BUTTON(1, 0x01, 0) /* A */ | ||
READ_BUTTON(1, 0x02, 1) /* B */ | ||
READ_BUTTON(1, 0x04, 2) /* X */ | ||
READ_BUTTON(1, 0x08, 3) /* Y */ | ||
READ_BUTTON(1, 0x10, 4) /* DPAD_LEFT */ | ||
READ_BUTTON(1, 0x20, 5) /* DPAD_RIGHT */ | ||
READ_BUTTON(1, 0x40, 6) /* DPAD_DOWN */ | ||
READ_BUTTON(1, 0x80, 7) /* DPAD_UP */ | ||
READ_BUTTON(2, 0x01, 8) /* START */ | ||
READ_BUTTON(2, 0x02, 9) /* RIGHTSHOULDER */ | ||
/* These two buttons are for the bottoms of the analog triggers. | ||
* More than likely, you're going to want to read the axes instead! | ||
* -flibit | ||
*/ | ||
READ_BUTTON(2, 0x04, 10) /* TRIGGERRIGHT */ | ||
READ_BUTTON(2, 0x08, 11) /* TRIGGERLEFT */ | ||
#undef READ_BUTTON | ||
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/* Axis math taken from SDL_xinputjoystick.c */ | ||
#define READ_AXIS(off, axis) \ | ||
SDL_PrivateJoystickAxis( \ | ||
joystick, \ | ||
axis, \ | ||
(Sint16)(((int)curSlot[off] * 257) - 32768) \ | ||
); | ||
READ_AXIS(3, 0) /* LEFTX */ | ||
READ_AXIS(4, 1) /* LEFTY */ | ||
READ_AXIS(5, 2) /* RIGHTX */ | ||
READ_AXIS(6, 3) /* RIGHTY */ | ||
READ_AXIS(7, 4) /* TRIGGERLEFT */ | ||
READ_AXIS(8, 5) /* TRIGGERRIGHT */ | ||
#undef READ_AXIS | ||
} | ||
} | ||
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/* Write rumble packet */ | ||
now = SDL_GetTicks(); | ||
for (i = 0; i < 4; i += 1) { | ||
if (ctx->rumbleExpiration[i] > 0) { | ||
if (SDL_TICKS_PASSED(now, ctx->rumbleExpiration[i]) || !ctx->rumbleAllowed[i]) { | ||
ctx->rumble[1 + i] = 0; | ||
ctx->rumbleExpiration[i] = 0; | ||
ctx->rumbleUpdate = SDL_TRUE; | ||
} | ||
} | ||
} | ||
if (ctx->rumbleUpdate) { | ||
hid_write(device->dev, ctx->rumble, sizeof(ctx->rumble)); | ||
ctx->rumbleUpdate = SDL_FALSE; | ||
} | ||
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/* If we got here, nothing bad happened! */ | ||
return SDL_TRUE; | ||
} | ||
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static SDL_bool | ||
HIDAPI_DriverGameCube_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) | ||
{ | ||
SDL_DriverGameCube_Context *ctx = (SDL_DriverGameCube_Context *)device->context; | ||
Uint8 i; | ||
for (i = 0; i < 4; i += 1) { | ||
if (joystick->instance_id == ctx->joysticks[i]) { | ||
joystick->nbuttons = 12; | ||
joystick->naxes = 6; | ||
joystick->epowerlevel = ctx->wireless[i] ? SDL_JOYSTICK_POWER_UNKNOWN : SDL_JOYSTICK_POWER_WIRED; | ||
joystick->player_index = i; | ||
return SDL_TRUE; | ||
} | ||
} | ||
return SDL_FALSE; /* Should never get here! */ | ||
} | ||
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static int | ||
HIDAPI_DriverGameCube_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms) | ||
{ | ||
SDL_DriverGameCube_Context *ctx = (SDL_DriverGameCube_Context *)device->context; | ||
Uint8 i, val; | ||
for (i = 0; i < 4; i += 1) { | ||
if (joystick->instance_id == ctx->joysticks[i]) { | ||
if (ctx->wireless[i]) { | ||
return SDL_SetError("Ninteno GameCube WaveBird controllers do not support rumble"); | ||
} | ||
if (!ctx->rumbleAllowed[i]) { | ||
return SDL_SetError("Second USB cable for WUP-028 not connected"); | ||
} | ||
val = (low_frequency_rumble > 0 || high_frequency_rumble > 0); | ||
if (val != ctx->rumble[i + 1]) { | ||
ctx->rumble[i + 1] = val; | ||
ctx->rumbleUpdate = SDL_TRUE; | ||
} | ||
if (val && duration_ms < SDL_HAPTIC_INFINITY) { | ||
ctx->rumbleExpiration[i] = SDL_GetTicks() + duration_ms; | ||
} else { | ||
ctx->rumbleExpiration[i] = 0; | ||
} | ||
return 0; | ||
} | ||
} | ||
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/* Should never get here! */ | ||
SDL_SetError("Couldn't find joystick"); | ||
return -1; | ||
} | ||
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static void | ||
HIDAPI_DriverGameCube_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) | ||
{ | ||
SDL_DriverGameCube_Context *ctx = (SDL_DriverGameCube_Context *)device->context; | ||
Uint8 i; | ||
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/* Stop rumble activity */ | ||
for (i = 0; i < 4; i += 1) { | ||
if (joystick->instance_id == ctx->joysticks[i]) { | ||
if (!ctx->wireless[i] && ctx->rumbleAllowed[i] && ctx->rumble[1 + i] != 0) { | ||
ctx->rumble[1 + i] = 0; | ||
ctx->rumbleExpiration[i] = 0; | ||
hid_write(device->dev, ctx->rumble, sizeof(ctx->rumble)); | ||
} | ||
break; | ||
} | ||
} | ||
} | ||
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static void | ||
HIDAPI_DriverGameCube_FreeDevice(SDL_HIDAPI_Device *device) | ||
{ | ||
hid_close(device->dev); | ||
device->dev = NULL; | ||
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SDL_free(device->context); | ||
device->context = NULL; | ||
} | ||
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SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverGameCube = | ||
{ | ||
SDL_HINT_JOYSTICK_HIDAPI_GAMECUBE, | ||
SDL_TRUE, | ||
HIDAPI_DriverGameCube_IsSupportedDevice, | ||
HIDAPI_DriverGameCube_GetDeviceName, | ||
HIDAPI_DriverGameCube_InitDevice, | ||
HIDAPI_DriverGameCube_UpdateDevice, | ||
HIDAPI_DriverGameCube_OpenJoystick, | ||
HIDAPI_DriverGameCube_RumbleJoystick, | ||
HIDAPI_DriverGameCube_CloseJoystick, | ||
HIDAPI_DriverGameCube_FreeDevice | ||
}; | ||
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#endif /* SDL_JOYSTICK_HIDAPI_GAMECUBE */ | ||
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#endif /* SDL_JOYSTICK_HIDAPI */ | ||
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/* vi: set ts=4 sw=4 expandtab: */ |
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