* Add nullsio1 plugin from upstream

3 files changed, 334 insertions, 0 deletions

diff --git a/plugins/nullsio1/Makefile.am b/plugins/nullsio1/Makefile.am
new file mode 100644
index 00000000..9d78b632
--- /dev/null
+++ b/plugins/nullsio1/Makefile.am
@@ -0,0 +1,10 @@
+bindir = @libdir@/games/psemu/
+libdir = @libdir@/games/psemu/
+
+lib_LTLIBRARIES = libNullSio1.la
+
+libNullSio1_la_SOURCES = sio1.c typedefs.h
+libNullSio1_la_LDFLAGS = -module -avoid-version
+
+AM_CPPFLAGS = -DDATADIR=\"${datadir}/psemu/\" \
+	-I$(top_srcdir)/libpcsxcore -I../../include
diff --git a/plugins/nullsio1/sio1.c b/plugins/nullsio1/sio1.c
new file mode 100644
index 00000000..44311f4b
--- /dev/null
+++ b/plugins/nullsio1/sio1.c
@@ -0,0 +1,289 @@
+/***************************************************************************
+ *   Copyright (C) 2013 by Blade_Arma <edgbla@yandex.ru>                   *
+ *                                                                         *
+ *   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  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
+ ***************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "typedefs.h"
+#include "psemu_plugin_defs.h"
+
+#ifndef CALLBACK
+#define CALLBACK
+#endif
+
+/***************************************************************************/
+
+static char *pluginName	 = "sio1Null";
+
+static const unsigned char version	= 1;
+static const unsigned char revision = 1;
+static const unsigned char build	= 1;
+
+static void (CALLBACK *irqCallback)() = 0;
+
+/* sio status flags.
+ */
+enum {
+	SR_TXRDY	= 0x0001,
+	SR_RXRDY	= 0x0002,
+	SR_TXU		= 0x0004,
+	SR_PERROR	= 0x0008,
+	SR_OE		= 0x0010,
+	SR_FE		= 0x0020,
+	SR_0040		= 0x0040, // ?
+	SR_DSR		= 0x0080,
+	SR_CTS		= 0x0100,
+	SR_IRQ		= 0x0200
+};
+
+/* sio mode flags.
+ */
+enum {
+	MR_BR_1		= 0x0001,
+	MR_BR_16	= 0x0002,
+	MR_BR_64	= 0x0003,
+	MR_CHLEN_5	= 0x0000,
+	MR_CHLEN_6	= 0x0004,
+	MR_CHLEN_7	= 0x0008,
+	MR_CHLEN_8	= 0x000C,
+	MR_PEN		= 0x0010,
+	MR_P_EVEN	= 0x0020,
+	MR_SB_00	= 0x0000,
+	MR_SB_01	= 0x0040,
+	MR_SB_10	= 0x0080,
+	MR_SB_11	= 0x00C0
+};
+
+/* sio control flags.
+ */
+enum {
+	CR_TXEN		= 0x0001,
+	CR_DTR		= 0x0002,
+	CR_RXEN		= 0x0004,
+	CR_0008		= 0x0008, // ?
+	CR_ERRRST	= 0x0010,
+	CR_RTS		= 0x0020,
+	CR_RST		= 0x0040,
+	CR_0080		= 0x0080, // HM?
+	CR_BUFSZ_1	= 0x0000,
+	CR_BUFSZ_2	= 0x0100,
+	CR_BUFSZ_4	= 0x0200,
+	CR_BUFSZ_8	= 0x0300,
+	CR_TXIEN	= 0x0400,
+	CR_RXIEN	= 0x0800,
+	CR_DSRIEN	= 0x1000,
+	CR_2000		= 0x2000 // CTSIEN?
+};
+
+static u16 statReg; // 0x1f801054: 0x185 SR_TXRDY | SR_TXU | SR_DSR | SR_CTS
+static u16 modeReg; // 0x1f801058: 0x0
+static u16 ctrlReg; // 0x1f80105A: 0x0
+static u16 baudReg; // 0x1f80105E: 0x0
+
+/***************************************************************************/
+
+long CALLBACK SIO1init() {
+	return 0;
+}
+
+long CALLBACK SIO1shutdown() {
+	return 0;
+}
+
+/***************************************************************************/
+
+long CALLBACK SIO1open(unsigned long *gpuDisp) {
+	statReg = SR_TXRDY | SR_TXU | SR_DSR | SR_CTS;
+	modeReg = 0x0000;
+	ctrlReg = 0x0000;
+	baudReg = 0x0000;
+	return 0;
+}
+
+long CALLBACK SIO1close() {
+	return 0;
+}
+
+/***************************************************************************/
+
+void CALLBACK SIO1pause() {
+}
+
+void CALLBACK SIO1resume() {
+}
+
+/***************************************************************************/
+
+long CALLBACK SIO1keypressed(int key) {
+	return 0;
+}
+
+/***************************************************************************/
+
+/* Write.
+ */
+
+void CALLBACK SIO1writeData8(u8 data) {
+}
+
+void CALLBACK SIO1writeData16(u16 data) {
+}
+
+void CALLBACK SIO1writeData32(u32 data) {
+}
+
+void CALLBACK SIO1writeStat16(u16 stat) {
+}
+
+void CALLBACK SIO1writeStat32(u32 stat) {
+	SIO1writeStat16(stat);
+}
+
+void CALLBACK SIO1writeMode16(u16 mode) {
+	modeReg = mode;
+}
+
+void CALLBACK SIO1writeMode32(u32 mode) {
+	SIO1writeMode16(mode);
+}
+
+void CALLBACK SIO1writeCtrl16(u16 ctrl) {
+	u16 ctrlSaved = ctrlReg;
+
+	ctrlReg = ctrl;
+
+	if(ctrlReg & CR_ERRRST) {
+		ctrlReg &= ~CR_ERRRST;
+		statReg &= ~(SR_PERROR | SR_OE | SR_FE | SR_IRQ);
+	}
+
+	if(ctrlReg & CR_RST) {
+		statReg &= ~SR_IRQ;
+		statReg |= SR_TXRDY | SR_TXU;
+		modeReg = 0;
+		ctrlReg = 0;
+		baudReg = 0;
+	}
+	
+	if(ctrlReg & CR_TXIEN) {
+		if(!(statReg & SR_IRQ)) {
+			irqCallback();
+			statReg |= SR_IRQ;
+		}
+	}
+}
+
+void CALLBACK SIO1writeCtrl32(u32 ctrl) {
+	SIO1writeCtrl16(ctrl);
+}
+
+void CALLBACK SIO1writeBaud16(u16 baud) {
+	baudReg = baud;
+}
+
+void CALLBACK SIO1writeBaud32(u32 baud) {
+	SIO1writeBaud16(baud);
+}
+
+/* Read.
+ */
+
+u8 CALLBACK SIO1readData8() {
+	u8 data[1] = {0};
+	return *(u8*)data;
+}
+
+u16 CALLBACK SIO1readData16() {
+	u8 data[2] = {0, 0};
+	return *(u16*)data;
+}
+
+u32 CALLBACK SIO1readData32() {
+	u8 data[4] = {0, 0, 0, 0};
+	return *(u32*)data;
+}
+
+u16 CALLBACK SIO1readStat16() {
+	return statReg;
+}
+
+u32 CALLBACK SIO1readStat32() {
+	return statReg;
+}
+
+u16 CALLBACK SIO1readMode16() {
+	return modeReg;
+}
+
+u32 CALLBACK SIO1readMode32() {
+	return modeReg;
+}
+
+u16 CALLBACK SIO1readCtrl16() {
+	return ctrlReg;
+}
+
+u32 CALLBACK SIO1readCtrl32() {
+	return ctrlReg;
+}
+
+u16 CALLBACK SIO1readBaud16() {
+	return baudReg;
+}
+
+u32 CALLBACK SIO1readBaud32() {
+	return baudReg;
+}
+
+/***************************************************************************/
+
+void CALLBACK SIO1update(uint32_t t) {
+}
+
+void CALLBACK SIO1registerCallback(void (CALLBACK *callback)()) {
+	irqCallback = callback;
+}
+
+/***************************************************************************/
+
+unsigned long CALLBACK PSEgetLibType() {
+	return PSE_LT_SIO1;
+}
+
+char* CALLBACK PSEgetLibName() {
+	return pluginName;
+}
+
+unsigned long CALLBACK PSEgetLibVersion() {
+	return version << 16 | revision << 8 | build;
+}
+
+long CALLBACK SIO1test() {
+	return 0;
+}
+
+void CALLBACK SIO1about() {
+}
+
+void CALLBACK SIO1configure() {
+}
+
+/***************************************************************************/
diff --git a/plugins/nullsio1/typedefs.h b/plugins/nullsio1/typedefs.h
new file mode 100644
index 00000000..452d2b3a
--- /dev/null
+++ b/plugins/nullsio1/typedefs.h
@@ -0,0 +1,35 @@
+/***************************************************************************
+ *   Copyright (C) 2013 by Blade_Arma <edgbla@yandex.ru>                   *
+ *                                                                         *
+ *   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  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
+ ***************************************************************************/
+
+#ifndef _TYPEDEFS_H_
+#define _TYPEDEFS_H_
+
+typedef int8_t s8;
+typedef int16_t s16;
+typedef int32_t s32;
+typedef int64_t s64;
+typedef intptr_t sptr;
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+typedef uintptr_t uptr;
+
+#endif // _TYPEDEFS_H_