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https://github.com/ekeeke/Genesis-Plus-GX.git
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[Wii] added support for Wii U Pro Controller & fixed in-game support for 3rd party Classic Controllers with invalid calibration data (continued)
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EkeEke
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189
gx/utils/wrap_wiiuse.c
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189
gx/utils/wrap_wiiuse.c
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/****************************************************************************
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* wrap_wiiuse.c
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*
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* libwiiuse wrapper for 3rd-party Classic Controller & Wii U Pro Controller support
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*
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* Copyright (C) 2015 Eke-Eke, based on technical info & code from Tueidj
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* 3. The name of the author may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************************/
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#ifdef HW_RVL
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#include <string.h>
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#include <wiiuse/wiiuse.h>
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#define WM_EXP_MEM_BASE 0x04A40000
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#define WM_CTRL_STATUS_BYTE1_ATTACHMENT 0x02
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#define WIIMOTE_STATE_WIIU_PRO_FOUND 0x00002
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#define WIIMOTE_STATE_HANDSHAKE 0x00004
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#define WIIMOTE_STATE_HANDSHAKE_COMPLETE 0x00008
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extern void __real_wiiuse_handshake(struct wiimote_t *wm,ubyte *data,uword len);
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extern void __real_wiiuse_set_ir(struct wiimote_t *wm,int status);
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extern int __real_classic_ctrl_handshake(struct wiimote_t* wm, struct classic_ctrl_t* cc, ubyte* data, uword len);
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static ubyte id[2];
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void __wrap_wiiuse_handshake(struct wiimote_t *wm,ubyte *data,uword len)
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{
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if (!wm->handshake_state)
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{
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if (len==0)
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{
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/* 1st step : read wiimote status (this will also starts expansion handshake if one is connected) */
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wiiuse_set_leds(wm,WIIMOTE_LED_NONE,NULL);
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wiiuse_status(wm,__wrap_wiiuse_handshake);
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return;
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}
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if (len > 2)
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{
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/* 2nd step: read expansion controller ID (if connected) */
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if (data[2]&WM_CTRL_STATUS_BYTE1_ATTACHMENT)
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{
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wiiuse_read_data(wm,id,WM_EXP_MEM_BASE+0xFE,2,__wrap_wiiuse_handshake);
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return;
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}
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}
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else
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{
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/* 3rd step: finish handshake without trying to read internal memory if Wii U pro controller is detected */
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if ((data[0]==0x01) && (data[1]==0x20))
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{
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int *state = (int *)&wm->state;
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WIIUSE_EVENT_TYPE *event = (WIIUSE_EVENT_TYPE *)&wm->event;
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*state &= ~WIIMOTE_STATE_HANDSHAKE;
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*state |= (WIIMOTE_STATE_HANDSHAKE_COMPLETE | WIIMOTE_STATE_WIIU_PRO_FOUND);
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*event = WIIUSE_CONNECT;
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wiiuse_status(wm,NULL);
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return;
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}
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}
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}
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/* proceed with default handshake sequence */
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__real_wiiuse_handshake(wm,data,len);
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}
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void __wrap_wiiuse_set_ir(struct wiimote_t *wm,int status)
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{
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/* do not enable IR on Wii U Pro Controller */
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if (wm->state & WIIMOTE_STATE_WIIU_PRO_FOUND)
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{
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/* this will force data report modes 0x34 or 0x35 */
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wiiuse_status(wm,NULL);
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return;
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}
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__real_wiiuse_set_ir(wm,status);
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}
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int __wrap_classic_ctrl_handshake(struct wiimote_t* wm, struct classic_ctrl_t* cc, ubyte* data, uword len)
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{
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/* detect Wii U Pro Controller */
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if ((len > 223) && (data[222] == 0x01) && (data[223] == 0x20))
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{
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/* set default calibration values */
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cc->btns = 0;
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cc->btns_held = 0;
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cc->btns_released = 0;
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cc->ljs.max.x = cc->ljs.max.y = cc->rjs.max.x = cc->rjs.max.y = 255;
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cc->ljs.min.x = cc->ljs.min.y = cc->rjs.min.x = cc->rjs.min.y = 0;
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cc->ljs.center.x = cc->ljs.center.y = cc->rjs.center.x = cc->rjs.center.y = 128;
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/* finish expansion handshake */
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int *type = (int *)&wm->exp.type;
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*type = EXP_CLASSIC;
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return 1;
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}
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/* sometimes the first 16 bytes are invalid but the next 16 bytes are ok (?) */
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if (data[0] == 0xFF)
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{
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if (data[16] != 0xFF)
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data += 16;
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}
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/* some 3rd-party classic controllers return invalid factory calibration data */
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if ((data[0] <= data[2]) || (data[1] >= data[2]) || (data[3] <= data[5]) || (data[4] >= data[5]) ||
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(data[6] <= data[8]) || (data[7] >= data[8]) || (data[9] <= data[11]) || (data[10] >= data[11]))
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{
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/* this will reset to default values */
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memset(data, 0, 16);
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}
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return __real_classic_ctrl_handshake(wm, cc, data, len);
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}
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void __wrap_classic_ctrl_event(struct classic_ctrl_t* cc, ubyte* msg)
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{
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/* save previously pressed buttons */
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cc->btns_last = cc->btns;
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/* detect Wii U pro controller */
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if (cc->rjs.max.x == 0xFF)
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{
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/* pressed buttons (0 is active, 1 is inactive) */
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cc->btns = ~((msg[8] << 8) | msg[9]) & CLASSIC_CTRL_BUTTON_ALL;
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/* convert 12-bit little endian analog joysticks position to 8-bit values */
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cc->ljs.pos.x = (msg[0] >> 4) | (msg[1] << 4);
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cc->rjs.pos.x = (msg[2] >> 4) | (msg[3] << 4);
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cc->ljs.pos.y = (msg[4] >> 4) | (msg[5] << 4);
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cc->rjs.pos.y = (msg[6] >> 4) | (msg[7] << 4);
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/* left/right triggers (not analog) */
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cc->ls_raw = cc->btns & CLASSIC_CTRL_BUTTON_FULL_L ? 0x1F : 0;
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cc->rs_raw = cc->btns & CLASSIC_CTRL_BUTTON_FULL_R ? 0x1F : 0;
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}
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else
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{
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/* pressed buttons (0 is active, 1 is inactive) */
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cc->btns = ~((msg[4] << 8) | msg[5]) & CLASSIC_CTRL_BUTTON_ALL;
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/* analog joysticks position */
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cc->ljs.pos.x = (msg[0] & 0x3F);
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cc->ljs.pos.y = (msg[1] & 0x3F);
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cc->rjs.pos.x = ((msg[0] & 0xC0) >> 3) | ((msg[1] & 0xC0) >> 5) | ((msg[2] & 0x80) >> 7);
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cc->rjs.pos.y = (msg[2] & 0x1F);
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/* left/right triggers (analog) */
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cc->ls_raw = (((msg[2] & 0x60) >> 2) | ((msg[3] & 0xE0) >> 5));
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cc->rs_raw = (msg[3] & 0x1F);
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}
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/* held buttons */
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cc->btns_held = (cc->btns & cc->btns_last);
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/* released buttons */
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cc->btns_released = (~cc->btns & cc->btns_last);
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}
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#endif
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