Initial submission of the PCem-Experimental source code.

src/device.c

@@ -0,0 +1,137 @@
+#include "ibm.h"
+#include "config.h"
+#include "device.h"
+#include "sound.h"
+
+static void *device_priv[256];
+static device_t *devices[256];
+
+static device_t *current_device;
+
+void device_init()
+{
+        memset(devices, 0, sizeof(devices));
+}
+
+void device_add(device_t *d)
+{
+        int c = 0;
+        void *priv;
+        
+        while (devices[c] != NULL && c < 256)
+                c++;
+        
+        if (c >= 256)
+                fatal("device_add : too many devices\n");
+        
+        current_device = d;
+        
+        priv = d->init();
+        if (priv == NULL)
+                fatal("device_add : device init failed\n");
+        
+        devices[c] = d;
+        device_priv[c] = priv;        
+}
+
+void device_close_all()
+{
+        int c;
+        
+        for (c = 0; c < 256; c++)
+        {
+                if (devices[c] != NULL)
+                {
+                        devices[c]->close(device_priv[c]);
+                        devices[c] = device_priv[c] = NULL;
+                }
+        }
+}
+
+int device_available(device_t *d)
+{
+#ifdef RELEASE_BUILD
+        if (d->flags & DEVICE_NOT_WORKING)
+                return 0;
+#endif
+        if (d->available)
+                return d->available();
+                
+        return 1;        
+}
+
+void device_speed_changed()
+{
+        int c;
+        
+        for (c = 0; c < 256; c++)
+        {
+                if (devices[c] != NULL)
+                {
+                        if (devices[c]->speed_changed != NULL)
+                        {
+                                devices[c]->speed_changed(device_priv[c]);
+                        }
+                }
+        }
+
+	sound_speed_changed();
+}
+
+void device_force_redraw()
+{
+        int c;
+        
+        for (c = 0; c < 256; c++)
+        {
+                if (devices[c] != NULL)
+                {
+                        if (devices[c]->force_redraw != NULL)
+                        {
+                                devices[c]->force_redraw(device_priv[c]);
+                        }
+                }
+        }
+}
+
+char *device_add_status_info(char *s, int max_len)
+{
+        int c;
+        
+        for (c = 0; c < 256; c++)
+        {
+                if (devices[c] != NULL)
+                {
+                        if (devices[c]->add_status_info != NULL)
+                                devices[c]->add_status_info(s, max_len, device_priv[c]);
+                }
+        }
+}
+
+int device_get_config_int(char *s)
+{
+        device_config_t *config = current_device->config;
+        
+        while (config->type != -1)
+        {
+                if (!strcmp(s, config->name))
+                        return config_get_int(current_device->name, s, config->default_int);
+
+                config++;
+        }
+        return 0;
+}
+
+char *device_get_config_string(char *s)
+{
+        device_config_t *config = current_device->config;
+        
+        while (config->type != -1)
+        {
+                if (!strcmp(s, config->name))
+                        return config_get_string(current_device->name, s, config->default_string);
+
+                config++;
+        }
+        return NULL;
+}