V4L/DVB (10822): Add support for Zarlink ZL10036 DVB-S tuner.

This driver is based on initial work by Tino Reichardt and was heavily changed.
The datasheet of the zl10036 can be found here and on other places on the net:

http://www.mcmilk.de/projects/dvb-card/datasheets/ZL10036.pdf

The zl10038 is similar to the zl10036, so it is maybe possible to write a common
driver of necessary.
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/Kconfig

@@ -55,6 +55,13 @@ config DVB_MT312
 	help
 	  A DVB-S tuner module. Say Y when you want to support this frontend.
 
+config DVB_ZL10036
+	tristate "Zarlink ZL10036 silicon tuner"
+	depends on DVB_CORE && I2C
+	default m if DVB_FE_CUSTOMISE
+	help
+	  A DVB-S tuner module. Say Y when you want to support this frontend.
+
 config DVB_S5H1420
 	tristate "Samsung S5H1420 based"
 	depends on DVB_CORE && I2C

drivers/media/dvb/frontends/Makefile

@@ -29,6 +29,7 @@ obj-$(CONFIG_DVB_TDA1004X) += tda1004x.o
 obj-$(CONFIG_DVB_SP887X) += sp887x.o
 obj-$(CONFIG_DVB_NXT6000) += nxt6000.o
 obj-$(CONFIG_DVB_MT352) += mt352.o
+obj-$(CONFIG_DVB_ZL10036) += zl10036.o
 obj-$(CONFIG_DVB_ZL10353) += zl10353.o
 obj-$(CONFIG_DVB_CX22702) += cx22702.o
 obj-$(CONFIG_DVB_DRX397XD) += drx397xD.o

drivers/media/dvb/frontends/zl10036.h

+/**
+ * Driver for Zarlink ZL10036 DVB-S silicon tuner
+ *
+ * Copyright (C) 2006 Tino Reichardt
+ * Copyright (C) 2007-2009 Matthias Schwarzott <zzam@gentoo.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef DVB_ZL10036_H
+#define DVB_ZL10036_H
+
+#include <linux/i2c.h>
+#include "dvb_frontend.h"
+
+/**
+ * Attach a zl10036 tuner to the supplied frontend structure.
+ *
+ * @param fe Frontend to attach to.
+ * @param config zl10036_config structure
+ * @return FE pointer on success, NULL on failure.
+ */
+
+struct zl10036_config {
+	u8 tuner_address;
+	int rf_loop_enable;
+};
+
+#if defined(CONFIG_DVB_ZL10036) || \
+	(defined(CONFIG_DVB_ZL10036_MODULE) && defined(MODULE))
+extern struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
+	const struct zl10036_config *config, struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend *zl10036_attach(struct dvb_frontend *fe,
+	const struct zl10036_config *config, struct i2c_adapter *i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif /* DVB_ZL10036_H */