[PATCH v2 1/3] drivers: Introduce MEN Chameleon Bus
The MCB (MEN Chameleon Bus) is a Bus specific to MEN Mikroelektronik
FPGA based devices. It is used to identify MCB based IP-Cores within
an FPGA and provide the necessary framework for instantiating drivers
for these devices.
Signed-off-by: Johannes Thumshirn
---
MAINTAINERS | 6 +
drivers/Kconfig | 2 +
drivers/Makefile| 1 +
drivers/mcb/Kconfig | 15 ++
drivers/mcb/Makefile| 5 +
drivers/mcb/mcb-core.c | 414
drivers/mcb/mcb-internal.h | 116 +++
drivers/mcb/mcb-parse.c | 159 +++
include/linux/mcb.h | 119
include/linux/mod_devicetable.h | 5 +
10 files changed, 842 insertions(+)
create mode 100644 drivers/mcb/Kconfig
create mode 100644 drivers/mcb/Makefile
create mode 100644 drivers/mcb/mcb-core.c
create mode 100644 drivers/mcb/mcb-internal.h
create mode 100644 drivers/mcb/mcb-parse.c
create mode 100644 include/linux/mcb.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 5aa1c50..68a3cad 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5666,6 +5666,12 @@ L: linux-watch...@vger.kernel.org
S: Supported
F: drivers/watchdog/mena21_wdt.c
+MEN CHAMELEON BUS (mcb)
+M: Johannes Thumshirn
+S: Supported
+F: drivers/mcb/
+F: include/linux/mcb.h
+
METAG ARCHITECTURE
M: James Hogan
L: linux-me...@vger.kernel.org
diff --git a/drivers/Kconfig b/drivers/Kconfig
index b3138fb..df2ac52 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -170,4 +170,6 @@ source "drivers/phy/Kconfig"
source "drivers/powercap/Kconfig"
+source "drivers/mcb/Kconfig"
+
endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 8e3b8b0..c5bf50c 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -155,3 +155,4 @@ obj-$(CONFIG_IPACK_BUS) += ipack/
obj-$(CONFIG_NTB) += ntb/
obj-$(CONFIG_FMC) += fmc/
obj-$(CONFIG_POWERCAP) += powercap/
+obj-$(CONFIG_MCB) += mcb/
diff --git a/drivers/mcb/Kconfig b/drivers/mcb/Kconfig
new file mode 100644
index 000..44c82d6
--- /dev/null
+++ b/drivers/mcb/Kconfig
@@ -0,0 +1,15 @@
+#
+# MEN Chameleon Bus (MCB) support
+#
+
+menuconfig MCB
+ tristate "MCB support"
+ default m
+ help
+
+ The MCB (MEN Chameleon Bus) is a Bus specific to MEN Mikroelektronik
+ FPGA based devices. It is used to identify MCB based IP-Cores within
+ an FPGA and provide the necessary framework for instantiating drivers
+ for these devices.
+
+ If build as a module, the module is called mcb.ko
diff --git a/drivers/mcb/Makefile b/drivers/mcb/Makefile
new file mode 100644
index 000..2d9a751
--- /dev/null
+++ b/drivers/mcb/Makefile
@@ -0,0 +1,5 @@
+
+obj-$(CONFIG_MCB) += mcb.o
+
+mcb-y += mcb-core.o
+mcb-y += mcb-parse.o
diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c
new file mode 100644
index 000..bbe1293
--- /dev/null
+++ b/drivers/mcb/mcb-core.c
@@ -0,0 +1,414 @@
+/*
+ * MEN Chameleon Bus.
+ *
+ * Copyright (C) 2013 MEN Mikroelektronik GmbH (www.men.de)
+ * Author: Johannes Thumshirn
+ *
+ * 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; version 2 of the License.
+ */
+#include
+#include
+#include
+#include
+#include
+#include
+
+static DEFINE_IDA(mcb_ida);
+
+static const struct mcb_device_id *mcb_match_id(const struct mcb_device_id
*ids,
+ struct mcb_device *dev)
+{
+ if (ids) {
+ while (ids->device) {
+ if (ids->device == dev->id)
+ return ids;
+ ids++;
+ }
+ }
+
+ return NULL;
+}
+
+static int mcb_match(struct device *dev, struct device_driver *drv)
+{
+ struct mcb_driver *mdrv = to_mcb_driver(drv);
+ struct mcb_device *mdev = to_mcb_device(dev);
+ const struct mcb_device_id *found_id;
+
+ found_id = mcb_match_id(mdrv->id_table, mdev);
+ if (found_id)
+ return 1;
+
+ return 0;
+}
+
+static int mcb_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct mcb_device *mdev = to_mcb_device(dev);
+ int ret;
+
+ ret = add_uevent_var(env, "MODALIAS=mcb:16z%03d", mdev->id);
+ if (ret)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int mcb_probe(struct device *dev)
+{
+ struct mcb_driver *mdrv = to_mcb_driver(dev->driver);
+ struct mcb_device *mdev = to_mcb_device(dev);
+ const struct mcb_device_id *found_id;
+
+ found_id = mcb_match_id(mdrv->id_table, mdev);
+ if (!found_id)
+ return -ENODEV;
+
+ return mdrv->probe(mdev, found_id);
+}
+
+static int mcb_remove(struct device *dev)
+{
+
[PATCH v2 1/3] drivers: Introduce MEN Chameleon Bus
The MCB (MEN Chameleon Bus) is a Bus specific to MEN Mikroelektronik
FPGA based devices. It is used to identify MCB based IP-Cores within
an FPGA and provide the necessary framework for instantiating drivers
for these devices.
Signed-off-by: Johannes Thumshirn johannes.thumsh...@men.de
---
MAINTAINERS | 6 +
drivers/Kconfig | 2 +
drivers/Makefile| 1 +
drivers/mcb/Kconfig | 15 ++
drivers/mcb/Makefile| 5 +
drivers/mcb/mcb-core.c | 414
drivers/mcb/mcb-internal.h | 116 +++
drivers/mcb/mcb-parse.c | 159 +++
include/linux/mcb.h | 119
include/linux/mod_devicetable.h | 5 +
10 files changed, 842 insertions(+)
create mode 100644 drivers/mcb/Kconfig
create mode 100644 drivers/mcb/Makefile
create mode 100644 drivers/mcb/mcb-core.c
create mode 100644 drivers/mcb/mcb-internal.h
create mode 100644 drivers/mcb/mcb-parse.c
create mode 100644 include/linux/mcb.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 5aa1c50..68a3cad 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5666,6 +5666,12 @@ L: linux-watch...@vger.kernel.org
S: Supported
F: drivers/watchdog/mena21_wdt.c
+MEN CHAMELEON BUS (mcb)
+M: Johannes Thumshirn johannes.thumsh...@men.de
+S: Supported
+F: drivers/mcb/
+F: include/linux/mcb.h
+
METAG ARCHITECTURE
M: James Hogan james.ho...@imgtec.com
L: linux-me...@vger.kernel.org
diff --git a/drivers/Kconfig b/drivers/Kconfig
index b3138fb..df2ac52 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -170,4 +170,6 @@ source drivers/phy/Kconfig
source drivers/powercap/Kconfig
+source drivers/mcb/Kconfig
+
endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 8e3b8b0..c5bf50c 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -155,3 +155,4 @@ obj-$(CONFIG_IPACK_BUS) += ipack/
obj-$(CONFIG_NTB) += ntb/
obj-$(CONFIG_FMC) += fmc/
obj-$(CONFIG_POWERCAP) += powercap/
+obj-$(CONFIG_MCB) += mcb/
diff --git a/drivers/mcb/Kconfig b/drivers/mcb/Kconfig
new file mode 100644
index 000..44c82d6
--- /dev/null
+++ b/drivers/mcb/Kconfig
@@ -0,0 +1,15 @@
+#
+# MEN Chameleon Bus (MCB) support
+#
+
+menuconfig MCB
+ tristate MCB support
+ default m
+ help
+
+ The MCB (MEN Chameleon Bus) is a Bus specific to MEN Mikroelektronik
+ FPGA based devices. It is used to identify MCB based IP-Cores within
+ an FPGA and provide the necessary framework for instantiating drivers
+ for these devices.
+
+ If build as a module, the module is called mcb.ko
diff --git a/drivers/mcb/Makefile b/drivers/mcb/Makefile
new file mode 100644
index 000..2d9a751
--- /dev/null
+++ b/drivers/mcb/Makefile
@@ -0,0 +1,5 @@
+
+obj-$(CONFIG_MCB) += mcb.o
+
+mcb-y += mcb-core.o
+mcb-y += mcb-parse.o
diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c
new file mode 100644
index 000..bbe1293
--- /dev/null
+++ b/drivers/mcb/mcb-core.c
@@ -0,0 +1,414 @@
+/*
+ * MEN Chameleon Bus.
+ *
+ * Copyright (C) 2013 MEN Mikroelektronik GmbH (www.men.de)
+ * Author: Johannes Thumshirn johannes.thumsh...@men.de
+ *
+ * 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; version 2 of the License.
+ */
+#include linux/kernel.h
+#include linux/module.h
+#include linux/slab.h
+#include linux/types.h
+#include linux/idr.h
+#include linux/mcb.h
+
+static DEFINE_IDA(mcb_ida);
+
+static const struct mcb_device_id *mcb_match_id(const struct mcb_device_id
*ids,
+ struct mcb_device *dev)
+{
+ if (ids) {
+ while (ids-device) {
+ if (ids-device == dev-id)
+ return ids;
+ ids++;
+ }
+ }
+
+ return NULL;
+}
+
+static int mcb_match(struct device *dev, struct device_driver *drv)
+{
+ struct mcb_driver *mdrv = to_mcb_driver(drv);
+ struct mcb_device *mdev = to_mcb_device(dev);
+ const struct mcb_device_id *found_id;
+
+ found_id = mcb_match_id(mdrv-id_table, mdev);
+ if (found_id)
+ return 1;
+
+ return 0;
+}
+
+static int mcb_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct mcb_device *mdev = to_mcb_device(dev);
+ int ret;
+
+ ret = add_uevent_var(env, MODALIAS=mcb:16z%03d, mdev-id);
+ if (ret)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int mcb_probe(struct device *dev)
+{
+ struct mcb_driver *mdrv = to_mcb_driver(dev-driver);
+ struct mcb_device *mdev = to_mcb_device(dev);
+ const struct mcb_device_id *found_id;
+
+ found_id = mcb_match_id(mdrv-id_table, mdev);
+
