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Subject[PATCH 11/12] gigaset: allow building without I4L
Date
Add a dummy LL interface to the Gigaset driver so that it can be
built and, in a limited way, used without the ISDN4Linux subsystem.

Impact: new configuration alternative
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
---
drivers/isdn/gigaset/Kconfig | 13 +++++++-
drivers/isdn/gigaset/Makefile | 4 ++-
drivers/isdn/gigaset/dummyll.c | 68 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 83 insertions(+), 2 deletions(-)
create mode 100644 drivers/isdn/gigaset/dummyll.c
diff --git a/drivers/isdn/gigaset/Kconfig b/drivers/isdn/gigaset/Kconfig
index 18ab865..6fd2dc1 100644
--- a/drivers/isdn/gigaset/Kconfig
+++ b/drivers/isdn/gigaset/Kconfig
@@ -1,6 +1,5 @@
menuconfig ISDN_DRV_GIGASET
tristate "Siemens Gigaset support"
- depends on ISDN_I4L
select CRC_CCITT
select BITREVERSE
help
@@ -11,9 +10,21 @@ menuconfig ISDN_DRV_GIGASET
If you have one of these devices, say M here and for at least
one of the connection specific parts that follow.
This will build a module called "gigaset".
+ Note: If you build the ISDN4Linux subsystem (ISDN_I4L)
+ as a module, you have to build this driver as a module too,
+ otherwise the Gigaset device won't show up as an ISDN device.

if ISDN_DRV_GIGASET

+config GIGASET_I4L
+ bool
+ depends on ISDN_I4L='y'||(ISDN_I4L='m'&&ISDN_DRV_GIGASET='m')
+ default y
+
+config GIGASET_DUMMYLL
+ bool
+ default !GIGASET_I4L
+
config GIGASET_BASE
tristate "Gigaset base station support"
depends on USB
diff --git a/drivers/isdn/gigaset/Makefile b/drivers/isdn/gigaset/Makefile
index e9d3189..d429202 100644
--- a/drivers/isdn/gigaset/Makefile
+++ b/drivers/isdn/gigaset/Makefile
@@ -1,4 +1,6 @@
-gigaset-y := common.o interface.o proc.o ev-layer.o i4l.o asyncdata.o
+gigaset-y := common.o interface.o proc.o ev-layer.o asyncdata.o
+gigaset-$(CONFIG_GIGASET_I4L) += i4l.o
+gigaset-$(CONFIG_GIGASET_DUMMYLL) += dummyll.o
usb_gigaset-y := usb-gigaset.o
ser_gigaset-y := ser-gigaset.o
bas_gigaset-y := bas-gigaset.o isocdata.o
diff --git a/drivers/isdn/gigaset/dummyll.c b/drivers/isdn/gigaset/dummyll.c
new file mode 100644
index 0000000..5b27c99
--- /dev/null
+++ b/drivers/isdn/gigaset/dummyll.c
@@ -0,0 +1,68 @@
+/*
+ * Dummy LL interface for the Gigaset driver
+ *
+ * Copyright (c) 2009 by Tilman Schmidt <tilman@imap.cc>.
+ *
+ * =====================================================================
+ * 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.
+ * =====================================================================
+ */
+
+#include "gigaset.h"
+
+void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
+{
+}
+EXPORT_SYMBOL_GPL(gigaset_skb_sent);
+
+void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb)
+{
+}
+EXPORT_SYMBOL_GPL(gigaset_skb_rcvd);
+
+void gigaset_isdn_rcv_err(struct bc_state *bcs)
+{
+}
+EXPORT_SYMBOL_GPL(gigaset_isdn_rcv_err);
+
+int gigaset_isdn_icall(struct at_state_t *at_state)
+{
+ return ICALL_IGNORE;
+}
+
+void gigaset_isdn_connD(struct bc_state *bcs)
+{
+}
+
+void gigaset_isdn_hupD(struct bc_state *bcs)
+{
+}
+
+void gigaset_isdn_connB(struct bc_state *bcs)
+{
+}
+
+void gigaset_isdn_hupB(struct bc_state *bcs)
+{
+}
+
+void gigaset_isdn_start(struct cardstate *cs)
+{
+}
+
+void gigaset_isdn_stop(struct cardstate *cs)
+{
+}
+
+int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
+{
+ pr_info("no ISDN subsystem interface\n");
+ return 1;
+}
+
+void gigaset_isdn_unregister(struct cardstate *cs)
+{
+}
--
1.6.2.1.214.ge986c


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