Import of all sources.

src/mouse.c

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+/*
+ * VARCem	Virtual Archaelogical Computer EMulator.
+ *		An emulator of (mostly) x86-based PC systems and devices,
+ *		using the ISA,EISA,VLB,MCA  and PCI system buses, roughly
+ *		spanning the era between 1981 and 1995.
+ *
+ *		This file is part of the VARCem Project.
+ *
+ *		Common driver module for MOUSE devices.
+ *
+ * TODO:	Add the Genius bus- and serial mouse.
+ *		Remove the '3-button' flag from mouse types.
+ *
+ * Version:	@(#)mouse.c	1.0.1	2018/02/14
+ *
+ * Authors:	Fred N. van Kempen, <decwiz@yahoo.com>
+ *		Miran Grca, <mgrca8@gmail.com>
+ *
+ *		Copyright 2017,2018 Fred N. van Kempen.
+ *		Copyright 2016-2018 Miran Grca.
+ *
+ *		Redistribution and  use  in source  and binary forms, with
+ *		or  without modification, are permitted  provided that the
+ *		following conditions are met:
+ *
+ *		1. Redistributions of  source  code must retain the entire
+ *		   above notice, this list of conditions and the following
+ *		   disclaimer.
+ *
+ *		2. Redistributions in binary form must reproduce the above
+ *		   copyright  notice,  this list  of  conditions  and  the
+ *		   following disclaimer in  the documentation and/or other
+ *		   materials provided with the distribution.
+ *
+ *		3. Neither the  name of the copyright holder nor the names
+ *		   of  its  contributors may be used to endorse or promote
+ *		   products  derived from  this  software without specific
+ *		   prior written permission.
+ *
+ * THIS SOFTWARE  IS  PROVIDED BY THE  COPYRIGHT  HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND  ANY EXPRESS  OR  IMPLIED  WARRANTIES,  INCLUDING, BUT  NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE  ARE  DISCLAIMED. IN  NO  EVENT  SHALL THE COPYRIGHT
+ * HOLDER OR  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL,  EXEMPLARY,  OR  CONSEQUENTIAL  DAMAGES  (INCLUDING,  BUT  NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE  GOODS OR SERVICES;  LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  AND ON  ANY
+ * THEORY OF  LIABILITY, WHETHER IN  CONTRACT, STRICT  LIABILITY, OR  TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING  IN ANY  WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <wchar.h>
+#include "emu.h"
+#include "device.h"
+#include "mouse.h"
+
+
+typedef struct {
+    const char  *internal_name;
+    device_t    *device;
+} mouse_t;
+
+
+int	mouse_type = 0;
+int	mouse_x,
+	mouse_y,
+	mouse_z,
+	mouse_buttons;
+
+
+static device_t mouse_none_device = {
+    "None",
+    0, MOUSE_TYPE_NONE,
+    NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    NULL
+};
+static device_t mouse_internal_device = {
+    "Internal Mouse",
+    0, MOUSE_TYPE_INTERNAL,
+    NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    NULL
+};
+
+
+static mouse_t mouse_devices[] = {
+    { "none",		&mouse_none_device	},
+    { "internal",	&mouse_internal_device	},
+    { "logibus",	&mouse_logibus_device	},
+    { "msbus",		&mouse_msinport_device	},
+#if 0
+    { "genibus",	&mouse_genibus_device	},
+#endif
+    { "mssystems",	&mouse_mssystems_device	},
+    { "msserial",	&mouse_msserial_device	},
+    { "ps2",		&mouse_ps2_device	},
+    { NULL,		NULL			}
+};
+
+
+static device_t	*mouse_curr;
+static void	*mouse_priv;
+static int	mouse_nbut;
+
+
+/* Initialize the mouse module. */
+void
+mouse_init(void)
+{
+    /* Initialize local data. */
+    mouse_x = mouse_y = mouse_z = 0;
+    mouse_buttons = 0x00;
+
+    mouse_type = MOUSE_TYPE_NONE;
+    mouse_curr = NULL;
+    mouse_priv = NULL;
+    mouse_nbut = 0;
+}
+
+
+void
+mouse_close(void)
+{
+    if (mouse_curr == NULL) return;
+
+    mouse_curr = NULL;
+    mouse_priv = NULL;
+    mouse_nbut = 0;
+}
+
+
+void
+mouse_reset(void)
+{
+    /* Abort if already initialized by a machine with internal mouse. */
+    if (mouse_curr != NULL) return;
+
+    pclog("MOUSE: reset(type=%d, '%s')\n",
+	mouse_type, mouse_devices[mouse_type].device->name);
+
+    /* Clear local data. */
+    mouse_x = mouse_y = mouse_z = 0;
+    mouse_buttons = 0x00;
+
+    /* If no mouse configured, we're done. */
+    if (mouse_type == 0) return;
+
+    mouse_curr = mouse_devices[mouse_type].device;
+
+    if (mouse_curr != NULL)
+	mouse_priv = device_add(mouse_curr);
+}
+
+
+/* Callback from the hardware driver. */
+void
+mouse_set_buttons(int buttons)
+{
+    mouse_nbut = buttons;
+}
+
+
+void
+mouse_process(void)
+{
+    static int poll_delay = 2;
+
+    if (mouse_curr == NULL) return;
+
+    if (--poll_delay) return;
+
+    mouse_poll();
+
+    if (mouse_curr->available != NULL) {
+    	mouse_curr->available(mouse_x,mouse_y,mouse_z,mouse_buttons, mouse_priv);
+
+	/* Reset mouse deltas. */
+	mouse_x = mouse_y = mouse_z = 0;
+    }
+
+    poll_delay = 2;
+}
+
+
+void
+mouse_set_poll(int (*func)(int,int,int,int,void *), void *arg)
+{
+    if (mouse_type != MOUSE_TYPE_INTERNAL) return;
+
+    mouse_curr->available = func;
+    mouse_priv = arg;
+}
+
+
+char *
+mouse_get_name(int mouse)
+{
+    return((char *)mouse_devices[mouse].device->name);
+}
+
+
+char *
+mouse_get_internal_name(int mouse)
+{
+    return((char *)mouse_devices[mouse].internal_name);
+}
+
+
+int
+mouse_get_from_internal_name(char *s)
+{
+    int c = 0;
+
+    while (mouse_devices[c].internal_name != NULL) {
+	if (! strcmp((char *)mouse_devices[c].internal_name, s)) {
+		return(c);
+	}
+	c++;
+    }
+
+    return(0);
+}
+
+
+int
+mouse_has_config(int mouse)
+{
+    if (mouse_devices[mouse].device == NULL) return(0);
+
+    return(mouse_devices[mouse].device->config ? 1 : 0);
+}
+
+
+device_t *
+mouse_get_device(int mouse)
+{
+    return(mouse_devices[mouse].device);
+}
+
+
+int
+mouse_get_buttons(void)
+{
+    return(mouse_nbut);
+}
+
+
+/* Return number of MOUSE types we know about. */
+int
+mouse_get_ndev(void)
+{
+    return((sizeof(mouse_devices)/sizeof(mouse_t)) - 1);
+}