Added missing files from previous commits

libsdl-org · Dec 19, 2019 · fead0b2 · fead0b2
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diff --git a/src/joystick/hidapi/SDL_hidapi_gamecube.c b/src/joystick/hidapi/SDL_hidapi_gamecube.c
@@ -0,0 +1,343 @@
+/*
+  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"
+
+#ifdef SDL_JOYSTICK_HIDAPI
+
+#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"
+
+
+#ifdef SDL_JOYSTICK_HIDAPI_GAMECUBE
+
+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;
+
+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;
+}
+
+static const char *
+HIDAPI_DriverGameCube_GetDeviceName(Uint16 vendor_id, Uint16 product_id)
+{
+    return "Nintendo GameCube Controller";
+}
+
+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;
+
+    ctx = (SDL_DriverGameCube_Context *)SDL_calloc(1, sizeof(*ctx));
+    if (!ctx) {
+        SDL_OutOfMemory();
+        return SDL_FALSE;
+    }
+
+    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;
+
+    ctx->joysticks[0] = -1;
+    ctx->joysticks[1] = -1;
+    ctx->joysticks[2] = -1;
+    ctx->joysticks[3] = -1;
+    ctx->rumble[0] = rumbleMagic;
+
+    /* 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;
+    }
+
+    /* 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...? */
+        }
+
+        /* Go through all 4 slots */
+        curSlot = packet + 1;
+        for (i = 0; i < 4; i += 1, curSlot += 9) {
+            ctx->wireless[i] = (curSlot[0] & 0x20) != 0;
+
+            /* Only allow rumble if the adapter's second USB cable is connected */
+            ctx->rumbleAllowed[i] = (curSlot[0] & 0x04) != 0 && !ctx->wireless[i];
+
+            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;
+            }
+        }
+    }
+
+    return SDL_TRUE;
+
+error:
+    if (device->dev) {
+        hid_close(device->dev);
+        device->dev = NULL;
+    }
+    if (device->context) {
+        SDL_free(device->context);
+        device->context = NULL;
+    }
+    return SDL_FALSE;
+}
+
+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;
+
+    /* 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...? */
+        }
+
+        /* Go through all 4 slots */
+        curSlot = packet + 1;
+        for (i = 0; i < 4; i += 1, curSlot += 9) {
+            ctx->wireless[i] = (curSlot[0] & 0x20) != 0;
+
+            /* Only allow rumble if the adapter's second USB cable is connected */
+            ctx->rumbleAllowed[i] = (curSlot[0] & 0x04) != 0 && !ctx->wireless[i];
+
+            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]);
+
+                /* 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;
+            }
+
+            #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
+
+            /* 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
+        }
+    }
+
+    /* 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;
+    }
+
+    /* If we got here, nothing bad happened! */
+    return SDL_TRUE;
+}
+
+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! */
+}
+
+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;
+        }
+    }
+
+    /* Should never get here! */
+    SDL_SetError("Couldn't find joystick");
+    return -1;
+}
+
+static void
+HIDAPI_DriverGameCube_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
+{
+    SDL_DriverGameCube_Context *ctx = (SDL_DriverGameCube_Context *)device->context;
+    Uint8 i;
+
+    /* 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;
+        }
+    }
+}
+
+static void
+HIDAPI_DriverGameCube_FreeDevice(SDL_HIDAPI_Device *device)
+{
+    hid_close(device->dev);
+    device->dev = NULL;
+
+    SDL_free(device->context);
+    device->context = NULL;
+}
+
+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
+};
+
+#endif /* SDL_JOYSTICK_HIDAPI_GAMECUBE */
+
+#endif /* SDL_JOYSTICK_HIDAPI */
+
+/* vi: set ts=4 sw=4 expandtab: */