Initial import

1 files changed, 59 insertions, 0 deletions

diff --git a/drivers/media/tuners/r820t.h b/drivers/media/tuners/r820t.h
new file mode 100644
index 000000000..b1e5661af
--- /dev/null
+++ b/drivers/media/tuners/r820t.h
@@ -0,0 +1,59 @@
+/*
+ * Elonics R820T silicon tuner driver
+ *
+ * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
+ *
+ *    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.
+ *
+ *    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.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef R820T_H
+#define R820T_H
+
+#include <linux/kconfig.h>
+#include "dvb_frontend.h"
+
+enum r820t_chip {
+	CHIP_R820T,
+	CHIP_R620D,
+	CHIP_R828D,
+	CHIP_R828,
+	CHIP_R828S,
+	CHIP_R820C,
+};
+
+struct r820t_config {
+	u8 i2c_addr;		/* 0x34 */
+	u32 xtal;
+	enum r820t_chip rafael_chip;
+	unsigned max_i2c_msg_len;
+	bool use_diplexer;
+	bool use_predetect;
+};
+
+#if IS_REACHABLE(CONFIG_MEDIA_TUNER_R820T)
+struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
+				  struct i2c_adapter *i2c,
+				  const struct r820t_config *cfg);
+#else
+static inline struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
+						struct i2c_adapter *i2c,
+						const struct r820t_config *cfg)
+{
+	pr_warn("%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif