[media] ascot2e: Sony Ascot2e DVB-C/T/T2 tuner driver

Add DVB-T/T2/C frontend driver for Sony Ascot2e (CXD2861ER) chip.

Signed-off-by: Kozlov Sergey <serjk@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/ascot2e.h b/drivers/media/dvb-frontends/ascot2e.h
new file mode 100644
index 000000000000..6da4ae6d6cc3
--- /dev/null
+++ b/drivers/media/dvb-frontends/ascot2e.h
@@ -0,0 +1,58 @@
+/*
+ * ascot2e.h
+ *
+ * Sony Ascot3E DVB-T/T2/C/C2 tuner driver
+ *
+ * Copyright 2012 Sony Corporation
+ * Copyright (C) 2014 NetUP Inc.
+ * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
+ * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
+ *
+ * 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.
+ *
+ * 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.
+  */
+
+#ifndef __DVB_ASCOT2E_H__
+#define __DVB_ASCOT2E_H__
+
+#include <linux/kconfig.h>
+#include <linux/dvb/frontend.h>
+#include <linux/i2c.h>
+
+/**
+ * struct ascot2e_config - the configuration of Ascot2E tuner driver
+ * @i2c_address:	I2C address of the tuner
+ * @xtal_freq_mhz:	Oscillator frequency, MHz
+ * @set_tuner_priv:	Callback function private context
+ * @set_tuner_callback:	Callback function that notifies the parent driver
+ *			which tuner is active now
+ */
+struct ascot2e_config {
+	u8	i2c_address;
+	u8	xtal_freq_mhz;
+	void	*set_tuner_priv;
+	int	(*set_tuner_callback)(void *, int);
+};
+
+#if IS_REACHABLE(CONFIG_DVB_ASCOT2E)
+extern struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
+					const struct ascot2e_config *config,
+					struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
+					const struct ascot2e_config *config,
+					struct i2c_adapter *i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif