DVB (2445): Added demodulator driver for Nova-S-Plus and Nova-SE2 DVB-S support.

- Added demodulator driver for Nova-S-Plus and Nova-SE2 DVB-S support.
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

drivers/media/dvb/frontends/Kconfig

@@ -16,6 +16,12 @@ config DVB_CX24110
 	help
 	  A DVB-S tuner module. Say Y when you want to support this frontend.
 
+config DVB_CX24123
+	tristate "Conexant CX24123 based"
+	depends on DVB_CORE
+	help
+	  A DVB-S tuner module. Say Y when you want to support this frontend.
+
 config DVB_TDA8083
 	tristate "Philips TDA8083 based"
 	depends on DVB_CORE

drivers/media/dvb/frontends/Makefile

@@ -32,3 +32,4 @@ obj-$(CONFIG_DVB_OR51132) += or51132.o
 obj-$(CONFIG_DVB_BCM3510) += bcm3510.o
 obj-$(CONFIG_DVB_S5H1420) += s5h1420.o
 obj-$(CONFIG_DVB_LGDT330X) += lgdt330x.o
+obj-$(CONFIG_DVB_CX24123) += cx24123.o

drivers/media/dvb/frontends/cx24123.h

+/*
+    Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
+
+    Copyright (C) 2005 Steven Toth <stoth@hauppauge.com>
+
+    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 CX24123_H
+#define CX24123_H
+
+#include <linux/dvb/frontend.h>
+
+struct cx24123_config
+{
+	/* the demodulator's i2c address */
+	u8 demod_address;
+
+	/* PLL maintenance */
+	int (*pll_init)(struct dvb_frontend* fe);
+	int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
+
+	/* Need to set device param for start_dma */
+	int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
+};
+
+/* Various tuner defaults need to be established for a given symbol rate Sps */
+struct
+{
+	u32 symbolrate_low;
+	u32 symbolrate_high;
+	u32 VCAslope;
+	u32 VCAoffset;
+	u32 VGA1offset;
+	u32 VGA2offset;
+	u32 VCAprogdata;
+	u32 VGAprogdata;
+} cx24123_AGC_vals[] =
+{
+	{
+		.symbolrate_low		= 1000000,
+		.symbolrate_high	= 4999999,
+		.VCAslope		= 0x07,
+		.VCAoffset		= 0x0f,
+		.VGA1offset		= 0x1f8,
+		.VGA2offset		= 0x1f8,
+		.VGAprogdata		= (2 << 18) | (0x1f8 << 9) | 0x1f8,
+		.VCAprogdata		= (4 << 18) | (0x07 << 9) | 0x07,
+	},
+	{
+		.symbolrate_low		=  5000000,
+		.symbolrate_high	= 14999999,
+		.VCAslope		= 0x1f,
+		.VCAoffset		= 0x1f,
+		.VGA1offset		= 0x1e0,
+		.VGA2offset		= 0x180,
+		.VGAprogdata		= (2 << 18) | (0x180 << 9) | 0x1e0,
+		.VCAprogdata		= (4 << 18) | (0x07 << 9) | 0x1f,
+	},
+	{
+		.symbolrate_low		= 15000000,
+		.symbolrate_high	= 45000000,
+		.VCAslope		= 0x3f,
+		.VCAoffset		= 0x3f,
+		.VGA1offset		= 0x180,
+		.VGA2offset		= 0x100,
+		.VGAprogdata		= (2 << 18) | (0x100 << 9) | 0x180,
+		.VCAprogdata		= (4 << 18) | (0x07 << 9) | 0x3f,
+	},
+};
+
+/*
+ * Various tuner defaults need to be established for a given frequency kHz.
+ * fixme: The bounds on the bands do not match the doc in real life.
+ * fixme: Some of them have been moved, other might need adjustment.
+ */
+struct
+{
+	u32 freq_low;
+	u32 freq_high;
+	u32 bandselect;
+	u32 VCOdivider;
+	u32 VCOnumber;
+	u32 progdata;
+} cx24123_bandselect_vals[] =
+{
+	{
+		.freq_low	= 950000,
+		.freq_high	= 1018999,
+		.bandselect	= 0x40,
+		.VCOdivider	= 4,
+		.VCOnumber	= 7,
+		.progdata	= (0 << 18) | (0 << 9) | 0x40,
+	},
+	{
+		.freq_low	= 1019000,
+		.freq_high	= 1074999,
+		.bandselect	= 0x80,
+		.VCOdivider	= 4,
+		.VCOnumber	= 8,
+		.progdata	= (0 << 18) | (0 << 9) | 0x80,
+	},
+	{
+		.freq_low	= 1075000,
+		.freq_high	= 1227999,
+		.bandselect	= 0x01,
+		.VCOdivider	= 2,
+		.VCOnumber	= 1,
+		.progdata	= (0 << 18) | (1 << 9) | 0x01,
+	},
+	{
+		.freq_low	= 1228000,
+		.freq_high	= 1349999,
+		.bandselect	= 0x02,
+		.VCOdivider	= 2,
+		.VCOnumber	= 2,
+		.progdata	= (0 << 18) | (1 << 9) | 0x02,
+	},
+	{
+		.freq_low	= 1350000,
+		.freq_high	= 1481999,
+		.bandselect	= 0x04,
+		.VCOdivider	= 2,
+		.VCOnumber	= 3,
+		.progdata	= (0 << 18) | (1 << 9) | 0x04,
+	},
+	{
+		.freq_low	= 1482000,
+		.freq_high	= 1595999,
+		.bandselect	= 0x08,
+		.VCOdivider	= 2,
+		.VCOnumber	= 4,
+		.progdata	= (0 << 18) | (1 << 9) | 0x08,
+	},
+	{
+		.freq_low	= 1596000,
+		.freq_high	= 1717999,
+		.bandselect	= 0x10,
+		.VCOdivider	= 2,
+		.VCOnumber	= 5,
+		.progdata	= (0 << 18) | (1 << 9) | 0x10,
+	},
+	{
+		.freq_low	= 1718000,
+		.freq_high	= 1855999,
+		.bandselect	= 0x20,
+		.VCOdivider	= 2,
+		.VCOnumber	= 6,
+		.progdata	= (0 << 18) | (1 << 9) | 0x20,
+	},
+	{
+		.freq_low	= 1856000,
+		.freq_high	= 2035999,
+		.bandselect	= 0x40,
+		.VCOdivider	= 2,
+		.VCOnumber	= 7,
+		.progdata	= (0 << 18) | (1 << 9) | 0x40,
+	},
+	{
+		.freq_low	= 2036000,
+		.freq_high	= 2149999,
+		.bandselect	= 0x80,
+		.VCOdivider	= 2,
+		.VCOnumber	= 8,
+		.progdata	= (0 << 18) | (1 << 9) | 0x80,
+	},
+};
+
+extern struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
+					   struct i2c_adapter* i2c);
+
+#endif /* CX24123_H */
+