1 files changed, 115 insertions, 0 deletions

diff --git a/drivers/isdn/hardware/eicon/diddfunc.c b/drivers/isdn/hardware/eicon/diddfunc.c
new file mode 100644
index 000000000000..3029234178d8
--- /dev/null
+++ b/drivers/isdn/hardware/eicon/diddfunc.c
@@ -0,0 +1,115 @@
+/* $Id: diddfunc.c,v 1.14.6.2 2004/08/28 20:03:53 armin Exp $
+ *
+ * DIDD Interface module for Eicon active cards.
+ * 
+ * Functions are in dadapter.c 
+ * 
+ * Copyright 2002-2003 by Armin Schindler (mac@melware.de) 
+ * Copyright 2002-2003 Cytronics & Melware (info@melware.de)
+ * 
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ */
+
+#include "platform.h"
+#include "di_defs.h"
+#include "dadapter.h"
+#include "divasync.h"
+
+#define DBG_MINIMUM  (DL_LOG + DL_FTL + DL_ERR)
+#define DBG_DEFAULT  (DBG_MINIMUM + DL_XLOG + DL_REG)
+
+
+extern void DIVA_DIDD_Read(void *, int);
+extern char *DRIVERRELEASE_DIDD;
+static dword notify_handle;
+static DESCRIPTOR _DAdapter;
+
+/*
+ * didd callback function
+ */
+static void *didd_callback(void *context, DESCRIPTOR * adapter,
+                           int removal)
+{
+        if (adapter->type == IDI_DADAPTER) {
+                DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."))
+                return (NULL);
+        } else if (adapter->type == IDI_DIMAINT) {
+                if (removal) {
+                        DbgDeregister();
+                } else {
+                        DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT);
+                }
+        }
+        return (NULL);
+}
+
+/*
+ * connect to didd
+ */
+static int DIVA_INIT_FUNCTION connect_didd(void)
+{
+        int x = 0;
+        int dadapter = 0;
+        IDI_SYNC_REQ req;
+        DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS];
+
+        DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table));
+
+        for (x = 0; x < MAX_DESCRIPTORS; x++) {
+                if (DIDD_Table[x].type == IDI_DADAPTER) {       /* DADAPTER found */
+                        dadapter = 1;
+                        memcpy(&_DAdapter, &DIDD_Table[x], sizeof(_DAdapter));
+                        req.didd_notify.e.Req = 0;
+                        req.didd_notify.e.Rc =
+                            IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
+                        req.didd_notify.info.callback = (void *)didd_callback;
+                        req.didd_notify.info.context = NULL;
+                        _DAdapter.request((ENTITY *) & req);
+                        if (req.didd_notify.e.Rc != 0xff)
+                                return (0);
+                        notify_handle = req.didd_notify.info.handle;
+                } else if (DIDD_Table[x].type == IDI_DIMAINT) { /* MAINT found */
+                        DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT);
+                }
+        }
+        return (dadapter);
+}
+
+/*
+ * disconnect from didd
+ */
+static void DIVA_EXIT_FUNCTION disconnect_didd(void)
+{
+        IDI_SYNC_REQ req;
+
+        req.didd_notify.e.Req = 0;
+        req.didd_notify.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY;
+        req.didd_notify.info.handle = notify_handle;
+        _DAdapter.request((ENTITY *) & req);
+}
+
+/*
+ * init
+ */
+int DIVA_INIT_FUNCTION diddfunc_init(void)
+{
+        diva_didd_load_time_init();
+
+        if (!connect_didd()) {
+                DBG_ERR(("init: failed to connect to DIDD."))
+                diva_didd_load_time_finit();
+                return (0);
+        }
+        return (1);
+}
+
+/*
+ * finit
+ */
+void DIVA_EXIT_FUNCTION diddfunc_finit(void)
+{
+        DbgDeregister();
+        disconnect_didd();
+        diva_didd_load_time_finit();
+}