581 lines
15 KiB
C
581 lines
15 KiB
C
/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.io/license.html
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*/
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/**
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* @file src/ginput/ginput_keyboard.c
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* @brief GINPUT keyboard code.
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*/
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// We need to include stdio.h below for MICROCODE_DEBUG. Turn off GFILE_NEED_STDIO just for this file to prevent conflicts
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#define GFILE_NEED_STDIO_MUST_BE_OFF
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#include "../../gfx.h"
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#if GFX_USE_GINPUT && GINPUT_NEED_KEYBOARD
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#define MICROCODE_DEBUG GFXOFF
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#if MICROCODE_DEBUG
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#include <stdio.h>
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#endif
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// Get the keyboard driver interface
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#include "ginput_driver_keyboard.h"
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#include "ginput_keyboard_microcode.h"
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// The keyboard poll timer
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static GTIMER_DECL(KeyboardTimer);
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static void SendKeyboardEventToListener(GSourceListener *psl, GKeyboard *k) {
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GEventKeyboard *pe;
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int i;
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// If there is no event buffer just mark a missed event
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if (!(pe = (GEventKeyboard *)geventGetEventBuffer(psl))) {
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// This listener is missing - save the meta events that have happened
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psl->srcflags |= GKEYSTATE_MISSED_EVENT;
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return;
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}
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if ((psl->listenflags & GLISTEN_KEYRAW)) {
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pe->type = GEVENT_KEYBOARD;
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pe->bytecount = k->cntsc;
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for(i = 0; i < k->cntsc; i++) pe->c[i] = k->sc[i];
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for(; i < 8; i++) pe->c[i] = 0;
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pe->keystate = k->keystate | psl->srcflags | GKEYSTATE_RAW;
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psl->srcflags = 0;
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return;
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}
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if ((psl->listenflags & GLISTEN_KEYREPEATSOFF) && (k->keystate & GKEYSTATE_REPEAT))
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return;
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if ((psl->listenflags & GLISTEN_KEYNOSPECIALS) && (k->keystate & GKEYSTATE_SPECIAL))
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return;
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if (!(psl->listenflags & GLISTEN_KEYUP) && (k->keystate & GKEYSTATE_KEYUP))
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k->cntc = 0;
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if (!(psl->listenflags & GLISTEN_KEYTRANSITIONS) && !k->cntc)
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return;
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pe->type = GEVENT_KEYBOARD;
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pe->bytecount = k->cntc;
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for(i = 0; i < k->cntc; i++) pe->c[i] = k->c[i];
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for(; i < 8; i++) pe->c[i] = 0;
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pe->keystate = k->keystate | psl->srcflags;
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psl->srcflags = 0;
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geventSendEvent(psl);
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}
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static void SendKeyboardEvent(GKeyboard *k) {
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GSourceListener *psl;
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// Send to the "All Keyboards" source listeners
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psl = 0;
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while ((psl = geventGetSourceListener((GSourceHandle)&KeyboardTimer, psl)))
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SendKeyboardEventToListener(psl, k);
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// Send to the keyboard specific source listeners
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psl = 0;
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while ((psl = geventGetSourceListener((GSourceHandle)k, psl)))
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SendKeyboardEventToListener(psl, k);
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}
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#define FLAG_ERROR 0x01
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#define FLAG_INIT 0x02
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#if GKEYBOARD_LAYOUT_OFF
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static void microengine(GKeyboard *k, gU8 code, gU8 flags) {
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if (flags)
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return;
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// Just send an event using the char
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k->c[0] = k->sc[0] = code;
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k->cntc = k->cntsc = 1;
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SendKeyboardEvent(k);
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k->cntc = k->cntsc = 0;
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}
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#else
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static void microengine(GKeyboard *k, gU8 code, gU8 flags) {
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const gU8 *pc;
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const gU8 *nrec;
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gU8 ver, diff, p1, p2;
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#if MICROCODE_DEBUG
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unsigned cnt;
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#endif
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pc = k->pLayout;
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if (!pc) {
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if (flags)
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return;
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// Default is to just send an event using the char
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k->c[0] = k->sc[0] = code;
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k->cntc = k->cntsc = 1;
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SendKeyboardEvent(k);
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k->cntc = k->cntsc = 0;
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return;
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}
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// Check the layout header
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if (*pc++ != KMC_HEADERSTART || *pc++ != KMC_HEADER_ID1 || *pc++ != KMC_HEADER_ID2)
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return;
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// We only understand version 1 currently
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ver = *pc++;
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if (ver < KMC_HEADER_VER_MIN || ver > KMC_HEADER_VER_MAX)
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return;
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// Setup
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diff = code;
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if (k->cntsc >= sizeof(k->sc))
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flags |= FLAG_ERROR;
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else
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k->sc[k->cntsc++] = code;
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#if MICROCODE_DEBUG
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cnt = 0;
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#endif
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while(*pc++ == KMC_RECORDSTART) {
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// Get the record length
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p1 = *pc++;
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if (!p1) break;
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nrec = pc + p1;
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#if MICROCODE_DEBUG
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cnt++;
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#endif
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while(pc < nrec) {
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switch(*pc++) {
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case KMC_TEST_INIT:
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if (!(flags & FLAG_INIT)) goto nextrecord;
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break;
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case KMC_TEST_ERROR:
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if (!(flags & FLAG_ERROR)) goto nextrecord;
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break;
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case KMC_TEST_CODE:
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if (flags != 0) goto nextrecord;
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p1 = *pc++;
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if (p1 != code) goto nextrecord;
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diff = 0;
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break;
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case KMC_TEST_CODERANGE:
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if (flags != 0) goto nextrecord;
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p1 = *pc++;
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p2 = *pc++;
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if (code < p1 || code > p2) goto nextrecord;
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diff = code - p1;
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break;
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case KMC_TEST_CODETABLE:
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if (flags != 0) goto nextrecord;
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p1 = *pc++;
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for(p2 = 0; ; p2++, p1--, pc++) {
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if (!p1) goto nextrecord;
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if (*pc == code) break;
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}
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pc += p1;
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diff = p2;
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break;
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case KMC_TEST_STATEBIT:
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if ((k->keystate & (1 << (p1 & 31)))) goto nextrecord;
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} else {
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if (!(k->keystate & (1 << (p1 & 31)))) goto nextrecord;
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}
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break;
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case KMC_TEST_STATEOR:
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if (!(k->keystate & (1 << (p1 & 31)))) break;
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} else {
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if ((k->keystate & (1 << (p1 & 31)))) break;
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}
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p2 = *pc++;
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if ((p2 & KMC_BIT_CLEAR)) {
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if (!(k->keystate & (1 << (p2 & 31)))) break;
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} else {
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if ((k->keystate & (1 << (p2 & 31)))) break;
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}
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goto nextrecord;
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case KMC_TEST_STATEAND:
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if ((k->keystate & (1 << (p1 & 31)))) goto nextrecord;
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} else {
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if (!(k->keystate & (1 << (p1 & 31)))) goto nextrecord;
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}
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p2 = *pc++;
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if ((p2 & KMC_BIT_CLEAR)) {
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if ((k->keystate & (1 << (p2 & 31)))) goto nextrecord;
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} else {
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if (!(k->keystate & (1 << (p2 & 31)))) goto nextrecord;
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}
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break;
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case KMC_TEST_LAYOUTBIT:
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if ((k->laystate & (1 << (p1 & 15)))) goto nextrecord;
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} else {
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if (!(k->laystate & (1 << (p1 & 15)))) goto nextrecord;
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}
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break;
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case KMC_TEST_LAYOUTOR:
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if (!(k->laystate & (1 << (p1 & 15)))) break;
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} else {
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if ((k->laystate & (1 << (p1 & 15)))) break;
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}
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p2 = *pc++;
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if ((p2 & KMC_BIT_CLEAR)) {
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if (!(k->laystate & (1 << (p2 & 15)))) break;
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} else {
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if ((k->laystate & (1 << (p2 & 15)))) break;
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}
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goto nextrecord;
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case KMC_TEST_LAYOUTAND:
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if ((k->laystate & (1 << (p1 & 15)))) goto nextrecord;
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} else {
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if (!(k->laystate & (1 << (p1 & 15)))) goto nextrecord;
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}
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p2 = *pc++;
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if ((p2 & KMC_BIT_CLEAR)) {
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if ((k->laystate & (1 << (p2 & 15)))) goto nextrecord;
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} else {
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if (!(k->laystate & (1 << (p2 & 15)))) goto nextrecord;
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}
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break;
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case KMC_TEST_CODEBIT:
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if (flags != 0) goto nextrecord;
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if ((code & (1 << (p1 & 7)))) goto nextrecord;
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} else {
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if (!(code & (1 << (p1 & 7)))) goto nextrecord;
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}
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break;
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case KMC_TEST_CODEOR:
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if (flags != 0) goto nextrecord;
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if (!(code & (1 << (p1 & 7)))) break;
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} else {
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if ((code & (1 << (p1 & 7)))) break;
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}
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p2 = *pc++;
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if ((p2 & KMC_BIT_CLEAR)) {
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if (!(code & (1 << (p2 & 7)))) break;
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} else {
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if ((code & (1 << (p2 & 7)))) break;
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}
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goto nextrecord;
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case KMC_TEST_CODEAND:
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if (flags != 0) goto nextrecord;
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p1 = *pc++;
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if ((p1 & KMC_BIT_CLEAR)) {
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if ((code & (1 << (p1 & 7)))) goto nextrecord;
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} else {
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if (!(code & (1 << (p1 & 7)))) goto nextrecord;
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}
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p2 = *pc++;
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if ((p2 & KMC_BIT_CLEAR)) {
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if ((code & (1 << (p2 & 7)))) goto nextrecord;
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} else {
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if (!(code & (1 << (p2 & 7)))) goto nextrecord;
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}
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break;
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case KMC_TEST_LASTCODE:
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p1 = *pc++;
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if (k->cntsc < 2) goto nextrecord;
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if (p1 != k->sc[k->cntsc-2]) goto nextrecord;
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break;
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case KMC_TEST_SHIFT:
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if ((k->keystate & (GKEYSTATE_SHIFT_L|GKEYSTATE_SHIFT_R))) break;
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goto nextrecord;
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case KMC_TEST_NOSHIFT:
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if (!(k->keystate & (GKEYSTATE_SHIFT_L|GKEYSTATE_SHIFT_R))) break;
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goto nextrecord;
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case KMC_TEST_CTRL:
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if ((k->keystate & (GKEYSTATE_CTRL_L|GKEYSTATE_CTRL_R))) break;
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goto nextrecord;
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case KMC_TEST_NOCTRL:
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if (!(k->keystate & (GKEYSTATE_CTRL_L|GKEYSTATE_CTRL_R))) break;
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goto nextrecord;
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case KMC_TEST_ALT:
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if ((k->keystate & (GKEYSTATE_ALT_L|GKEYSTATE_ALT_R))) break;
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goto nextrecord;
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case KMC_TEST_NOALT:
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if (!(k->keystate & (GKEYSTATE_ALT_L|GKEYSTATE_ALT_R))) break;
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goto nextrecord;
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case KMC_TEST_CAPS:
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if ((k->keystate & GKEYSTATE_CAPSLOCK)) {
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if (!(k->keystate & (GKEYSTATE_SHIFT_L|GKEYSTATE_SHIFT_R))) break;
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} else {
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if ((k->keystate & (GKEYSTATE_SHIFT_L|GKEYSTATE_SHIFT_R))) break;
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}
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goto nextrecord;
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case KMC_TEST_NOCAPS:
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if ((k->keystate & GKEYSTATE_CAPSLOCK)) {
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if ((k->keystate & (GKEYSTATE_SHIFT_L|GKEYSTATE_SHIFT_R))) break;
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} else {
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if (!(k->keystate & (GKEYSTATE_SHIFT_L|GKEYSTATE_SHIFT_R))) break;
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}
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goto nextrecord;
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case KMC_TEST_NUMLOCK:
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if ((k->keystate & GKEYSTATE_NUMLOCK)) break;
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goto nextrecord;
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case KMC_TEST_NONUMLOCK:
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if (!(k->keystate & GKEYSTATE_NUMLOCK)) break;
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goto nextrecord;
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case KMC_ACT_STOP:
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#if MICROCODE_DEBUG
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fprintf(stderr, "Executed STOP: Records=%2u Flags=0x%02X Code=0x%02X\n", cnt, flags, code); fflush(stderr);
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#endif
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return;
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case KMC_ACT_DONE:
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SendKeyboardEvent(k);
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k->cntc = k->cntsc = 0;
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k->keystate &= ~(GKEYSTATE_KEYUP|GKEYSTATE_SPECIAL);
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#if MICROCODE_DEBUG
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fprintf(stderr, "Executed DONE: Records=%2u Flags=0x%02X Code=0x%02X\n", cnt, flags, code); fflush(stderr);
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#endif
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return;
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case KMC_ACT_RESET:
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k->cntc = k->cntsc = 0;
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k->keystate &= ~(GKEYSTATE_KEYUP|GKEYSTATE_SPECIAL);
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break;
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case KMC_ACT_STATEBIT:
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p1 = *pc++;
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if ((p1 & KMC_BIT_INVERT))
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k->keystate ^= (1 << (p1 & 31));
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else if ((p1 & KMC_BIT_CLEAR))
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k->keystate &= ~(1 << (p1 & 31));
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else
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k->keystate |= (1 << (p1 & 31));
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break;
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case KMC_ACT_LAYOUTBIT:
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p1 = *pc++;
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if ((p1 & KMC_BIT_INVERT))
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k->laystate ^= (1 << (p1 & 15));
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else if ((p1 & KMC_BIT_CLEAR))
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k->laystate &= ~(1 << (p1 & 15));
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else
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k->laystate |= (1 << (p1 & 15));
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break;
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case KMC_ACT_CODEBIT:
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p1 = *pc++;
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if ((p1 & KMC_BIT_INVERT))
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code ^= (1 << (p1 & 7));
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else if ((p1 & KMC_BIT_CLEAR))
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code &= ~(1 << (p1 & 7));
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else
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code |= (1 << (p1 & 7));
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break;
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case KMC_ACT_CHAR:
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if (k->cntc >= sizeof(k->c)) goto codeerror;
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k->c[k->cntc++] = *pc++;
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break;
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case KMC_ACT_CHARCODE:
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if (k->cntc >= sizeof(k->c)) goto codeerror;
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k->c[k->cntc++] = code;
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break;
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case KMC_ACT_CHARRANGE:
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if (k->cntc >= sizeof(k->c)) goto codeerror;
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k->c[k->cntc++] = diff + *pc++;
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break;
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case KMC_ACT_CHARTABLE:
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p1 = *pc++;
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if (diff < p1) {
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if (k->cntc >= sizeof(k->c)) goto codeerror;
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k->c[k->cntc++] = pc[diff];
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}
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pc += p1;
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break;
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case KMC_ACT_CLEAR:
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k->cntc = 0;
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break;
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case KMC_ACT_CHARADD:
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p1 = *pc++;
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if (!k->cntc)
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k->c[k->cntc++] = 0;
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k->c[k->cntc-1] = k->c[k->cntc-1] * p1 + diff;
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break;
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case KMC_ACT_DATA:
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p1 = *pc++;
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if (gkvmt(k)->putdata)
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gkvmt(k)->putdata(k, p1);
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break;
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|
|
default:
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codeerror:
|
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#if MICROCODE_DEBUG
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fprintf(stderr, "Executed ERROR: Records=%2u Flags=0x%02X Code=0x%02X\n", cnt, flags, code); cnt = 0; fflush(stderr);
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#endif
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|
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// Prevent recursion
|
|
if (flags & FLAG_ERROR)
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return;
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|
|
// Process as an error
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flags |= FLAG_ERROR;
|
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nrec = k->pLayout + 4; // Jump back to the end of the header to process the error
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|
goto nextrecord; // Nothing left to do here.
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}
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}
|
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|
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nextrecord:
|
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pc = nrec;
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}
|
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|
|
#if MICROCODE_DEBUG
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|
fprintf(stderr, "Executed END: Records=%2u Flags=0x%02X Code=0x%02X\n", cnt, flags, code); fflush(stderr);
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#endif
|
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}
|
|
#endif
|
|
|
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static void KeyboardPoll(void *param) {
|
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GKeyboard * k;
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gU8 scancodes[8];
|
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int sz, i;
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(void) param;
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|
|
for(k = (GKeyboard *)gdriverGetNext(GDRIVER_TYPE_KEYBOARD, 0); k; k = (GKeyboard *)gdriverGetNext(GDRIVER_TYPE_KEYBOARD, (GDriver *)k)) {
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if (!(gkvmt(k)->d.flags & GKEYBOARD_VFLG_NOPOLL) || (k->flags & GKEYBOARD_FLG_NEEDREAD)) {
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k->flags &= ~GKEYBOARD_FLG_NEEDREAD;
|
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sz = gkvmt(k)->getdata(k, scancodes, sizeof(scancodes));
|
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for(i = 0; i < sz; i++)
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microengine(k, scancodes[i], 0);
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}
|
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}
|
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}
|
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|
|
void _gkeyboardInit(void) {
|
|
// GINPUT_KEYBOARD_DRIVER_LIST is defined - create each driver instance
|
|
#if defined(GINPUT_KEYBOARD_DRIVER_LIST)
|
|
{
|
|
int i;
|
|
typedef const GKeyboardVMT const GKEYBOARDVMTLIST[1];
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|
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extern GKEYBOARDVMTLIST GINPUT_KEYBOARD_DRIVER_LIST;
|
|
static const GKeyboardVMT * const dclist[] = {GINPUT_KEYBOARD_DRIVER_LIST};
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|
|
for(i = 0; i < sizeof(dclist)/sizeof(dclist[0]); i++) {
|
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if (!(dclist[i]->d.flags & GKEYBOARD_VFLG_DYNAMICONLY))
|
|
gdriverRegister(&dclist[i]->d, 0);
|
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}
|
|
}
|
|
|
|
// One and only one mouse
|
|
#else
|
|
{
|
|
extern const GKeyboardVMT const GKEYBOARDVMT_OnlyOne[1];
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|
|
|
if (!(GKEYBOARDVMT_OnlyOne->d.flags & GKEYBOARD_VFLG_DYNAMICONLY))
|
|
gdriverRegister(&GKEYBOARDVMT_OnlyOne->d, 0);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
void _gkeyboardDeinit(void) {
|
|
gtimerDeinit(&KeyboardTimer);
|
|
}
|
|
|
|
gBool _gkeyboardInitDriver(GDriver *g, void *param, unsigned driverinstance, unsigned systeminstance) {
|
|
#define k ((GKeyboard *)g)
|
|
(void) param;
|
|
(void) systeminstance;
|
|
|
|
// The initial keyboard layout comes from the VMT
|
|
k->pLayout = gkvmt(k)->defLayout;
|
|
|
|
// Init the mouse
|
|
if (!gkvmt(k)->init((GKeyboard *)g, driverinstance))
|
|
return gFalse;
|
|
|
|
// Ensure the Poll timer is started
|
|
if (!gtimerIsActive(&KeyboardTimer))
|
|
gtimerStart(&KeyboardTimer, KeyboardPoll, 0, gTrue, GINPUT_KEYBOARD_POLL_PERIOD);
|
|
|
|
return gTrue;
|
|
|
|
#undef k
|
|
}
|
|
|
|
void _gkeyboardPostInitDriver(GDriver *g) {
|
|
#define k ((GKeyboard *)g)
|
|
|
|
// Run the init sequence from the layout microcode.
|
|
microengine(k, 0, FLAG_INIT);
|
|
|
|
#undef k
|
|
}
|
|
|
|
void _gkeyboardDeInitDriver(GDriver *g) {
|
|
(void) g;
|
|
}
|
|
|
|
GSourceHandle ginputGetKeyboard(unsigned instance) {
|
|
if (instance == GKEYBOARD_ALL_INSTANCES)
|
|
return (GSourceHandle)&KeyboardTimer;
|
|
return (GSourceHandle)gdriverGetInstance(GDRIVER_TYPE_KEYBOARD, instance);
|
|
}
|
|
|
|
gBool ginputGetKeyboardStatus(unsigned instance, GEventKeyboard *pe) {
|
|
GKeyboard *k;
|
|
|
|
// Win32 threads don't seem to recognise priority and/or pre-emption
|
|
// so we add a sleep here to prevent 100% polled applications from locking up.
|
|
gfxSleepMilliseconds(1);
|
|
|
|
if (!(k = (GKeyboard *)gdriverGetInstance(GDRIVER_TYPE_KEYBOARD, instance)))
|
|
return gFalse;
|
|
|
|
pe->type = GEVENT_KEYBOARD;
|
|
// TODO
|
|
return gTrue;
|
|
}
|
|
|
|
#if !GKEYBOARD_LAYOUT_OFF
|
|
gBool ginputSetKeyboardLayout(unsigned instance, const void *pLayout) {
|
|
GKeyboard *k;
|
|
|
|
if (!(k = (GKeyboard *)gdriverGetInstance(GDRIVER_TYPE_KEYBOARD, instance)))
|
|
return gFalse;
|
|
|
|
if (pLayout)
|
|
k->pLayout = pLayout;
|
|
else
|
|
k->pLayout = gkvmt(k)->defLayout;
|
|
|
|
return gTrue;
|
|
}
|
|
#endif
|
|
|
|
/* Wake up the keyboard driver from an interrupt service routine (there may be new readings available) */
|
|
void _gkeyboardWakeup(GKeyboard *k) {
|
|
if (k)
|
|
k->flags |= GKEYBOARD_FLG_NEEDREAD;
|
|
gtimerJab(&KeyboardTimer);
|
|
}
|
|
|
|
/* Wake up the keyboard driver from an interrupt service routine (there may be new readings available) */
|
|
void _gkeyboardWakeupI(GKeyboard *k) {
|
|
if (k)
|
|
k->flags |= GKEYBOARD_FLG_NEEDREAD;
|
|
gtimerJabI(&KeyboardTimer);
|
|
}
|
|
|
|
#endif /* GFX_USE_GINPUT && GINPUT_NEED_KEYBOARD */
|