adding sharp s921 ISDB-T driver

From: Markus Rechberger <mrechberger@gmail.com>

s921_module.c:
    wrapper for the dvb frontend interface
    s921_core.c:
    core s921 1seg ISDB-T driver, everything is set to auto as much as possible
    in order to not require certain parameters which currently cannot be passed
    to the ISDB-T chip.

    ISDB-T support can be tested using dvbscan, dvbstream/snoop and mplayer
    Tested 1seg H264/aac stream with this driver using a custom linux
ISDB-T player

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/linux/drivers/media/video/empia/sharp/s921_module.h b/linux/drivers/media/video/empia/sharp/s921_module.h
new file mode 100644
index 000000000..78660424b
--- /dev/null
+++ b/linux/drivers/media/video/empia/sharp/s921_module.h
@@ -0,0 +1,49 @@
+/*
+ *  Driver for DVB-T s921 demodulator
+ *
+ *  Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.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; 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., 675 Mass Ave, Cambridge, MA 02139, USA.=
+ */
+
+#ifndef S921_MODULE_H
+#define S921_MODULE_H
+
+#include <linux/dvb/frontend.h>
+#include "s921_core.h"
+
+int s921_isdb_init(struct s921_isdb_t *dev);
+int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data);
+
+struct s921_config
+{
+	/* demodulator's I2C address */
+	u8 i2c_address;
+};
+
+#if defined(CONFIG_DVB_S921) || (defined(CONFIG_DVB_S921_MODULE) && defined(MODULE))
+extern struct dvb_frontend* s921_attach(const struct s921_config *config,
+					   struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend* s921_attach(const struct s921_config *config,
+					   struct i2c_adapter *i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif /* CONFIG_DVB_S921 */
+
+#endif /* S921_H */