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Commit 89f9257c authored by Henk Vergonet's avatar Henk Vergonet Committed by Mauro Carvalho Chehab
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V4L/DVB (7736): This patch adds support for the Micronas DRX3975D/DRX3977D DVB-T demodulator 



The module needs an external firmware file.

The module has been tested on a Pinnacle 330e, but with modules that
are currently not part of the linux-dvb tree. So consider this highly
experimental, don't use this code unless you are an experienced kernel
developer.

 create mode 100644 drivers/media/dvb/frontends/drx397xD.c
 create mode 100644 drivers/media/dvb/frontends/drx397xD.h
 create mode 100644 drivers/media/dvb/frontends/drx397xD_fw.h

Signed-off-by: default avatarHenk Vergonet <henk.vergonet@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 14b395e3

drivers/media/dvb/frontends/Kconfig

+14 −0
Original line number Diff line number Diff line
@@ -135,6 +135,20 @@ config DVB_CX22702 
	help

	  A DVB-T tuner module. Say Y when you want to support this frontend.



config DVB_DRX397XD

	tristate "Micronas DRX3975D/DRX3977D based"

	depends on DVB_CORE && I2C && HOTPLUG

	default m if DVB_FE_CUSTOMISE

	select FW_LOADER

	help

	  A DVB-T tuner module. Say Y when you want to support this frontend.



	  TODO:

	  This driver needs external firmware. Please use the command

	  "<kerneldir>/Documentation/dvb/get_dvb_firmware drx397xD" to

	  download/extract them, and then copy them to /usr/lib/hotplug/firmware

	  or /lib/firmware (depending on configuration of firmware hotplug).



config DVB_L64781

	tristate "LSI L64781"

	depends on DVB_CORE && I2C

drivers/media/dvb/frontends/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ obj-$(CONFIG_DVB_NXT6000) += nxt6000.o 
obj-$(CONFIG_DVB_MT352) += mt352.o

obj-$(CONFIG_DVB_ZL10353) += zl10353.o

obj-$(CONFIG_DVB_CX22702) += cx22702.o

obj-$(CONFIG_DVB_DRX397XD) += drx397xD.o

obj-$(CONFIG_DVB_TDA10021) += tda10021.o

obj-$(CONFIG_DVB_TDA10023) += tda10023.o

obj-$(CONFIG_DVB_STV0297) += stv0297.o

drivers/media/dvb/frontends/drx397xD.c

0 → 100644
+1505 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/media/dvb/frontends/drx397xD.h

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Original line number Diff line number Diff line 
/*

 *  Driver for Micronas DVB-T drx397xD demodulator

 *

 *  Copyright (C) 2007 Henk vergonet <Henk.Vergonet@gmail.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 _DRX397XD_H_INCLUDED

#define _DRX397XD_H_INCLUDED



#include <linux/dvb/frontend.h>



#define DRX_F_STEPSIZE	166667

#define DRX_F_OFFSET	36000000



#define I2C_ADR_C0(x) \

(	(u32)cpu_to_le32( \

		(u32)( \

			(((u32)(x) & (u32)0x000000ffUL)      ) | \

			(((u32)(x) & (u32)0x0000ff00UL) << 16) | \

			(((u32)(x) & (u32)0x0fff0000UL) >>  8) | \

			 (	     (u32)0x00c00000UL)          \

		      )) \

)



#define I2C_ADR_E0(x) \

(	(u32)cpu_to_le32( \

		(u32)( \

			(((u32)(x) & (u32)0x000000ffUL)      ) | \

			(((u32)(x) & (u32)0x0000ff00UL) << 16) | \

			(((u32)(x) & (u32)0x0fff0000UL) >>  8) | \

			 (	     (u32)0x00e00000UL)          \

		      )) \

)



struct drx397xD_CfgRfAgc	/* 0x7c */

{

	int d00;	/* 2 */

	u16 w04;

	u16 w06;

};



struct drx397xD_CfgIfAgc	/* 0x68 */

{

	int d00;	/* 0 */

	u16 w04;	/* 0 */

	u16 w06;

	u16 w08;

	u16 w0A;

	u16 w0C;

};



struct drx397xD_s20 {

	int d04;

	u32 d18;

	u32 d1C;

	u32 d20;

	u32 d14;

	u32 d24;

	u32 d0C;

	u32 d08;

};



struct drx397xD_config

{

	/* demodulator's I2C address */

	u8	demod_address;		/* 0x0f */



	struct drx397xD_CfgIfAgc  ifagc;  /* 0x68 */

	struct drx397xD_CfgRfAgc  rfagc;  /* 0x7c */

	u32	s20d24;



	/* HI_CfgCommand parameters */

	u16	w50, w52, /* w54, */ w56;



	int	d5C;

	int	d60;

	int	d48;

	int	d28;



	u32	f_if;	/* d14: intermediate frequency [Hz]		*/

			/*	36000000 on Cinergy 2400i DT		*/

			/*	42800000 on Pinnacle Hybrid PRO 330e	*/



	u16	f_osc;	/* s66: 48000 oscillator frequency [kHz]	*/



	u16	w92;	/* 20000 */



	u16	wA0;

	u16	w98;

	u16	w9A;



	u16	w9C;	/* 0xe0 */

	u16	w9E;	/* 0x00 */



	/* used for signal strength calculations in

	   drx397x_read_signal_strength

	*/

	u16	ss78;	// 2200

	u16	ss7A;	// 150

	u16	ss76;	// 820

};



#if defined(CONFIG_DVB_DRX397XD) || (defined(CONFIG_DVB_DRX397XD_MODULE) && defined(MODULE))

extern struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config,

					   struct i2c_adapter *i2c);

#else

static inline struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config,

					   struct i2c_adapter *i2c)

{

	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);

	return NULL;

}

#endif /* CONFIG_DVB_DRX397XD */



#endif /* _DRX397XD_H_INCLUDED */

drivers/media/dvb/frontends/drx397xD_fw.h

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+40 −0
Original line number Diff line number Diff line 
/*

 * Firmware definitions for Micronas drx397xD

 *

 * Copyright (C) 2007 Henk Vergonet <Henk.Vergonet@gmail.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, see <http://www.gnu.org/licenses/>.

 */



#ifdef _FW_ENTRY

	_FW_ENTRY("drx397xD.A2.fw",	DRXD_FW_A2 = 0		),

	_FW_ENTRY("drx397xD.B1.fw",	DRXD_FW_B1		),

#undef _FW_ENTRY

#endif /* _FW_ENTRY */



#ifdef _BLOB_ENTRY

	_BLOB_ENTRY("InitAtomicRead",	DRXD_InitAtomicRead = 0	),

	_BLOB_ENTRY("InitCE",		DRXD_InitCE		),

	_BLOB_ENTRY("InitCP",		DRXD_InitCP		),

	_BLOB_ENTRY("InitEC",		DRXD_InitEC		),

	_BLOB_ENTRY("InitEQ",		DRXD_InitEQ		),

	_BLOB_ENTRY("InitFE_1",		DRXD_InitFE_1		),

	_BLOB_ENTRY("InitFE_2",		DRXD_InitFE_2		),

	_BLOB_ENTRY("InitFT",		DRXD_InitFT		),

	_BLOB_ENTRY("InitSC",		DRXD_InitSC		),

	_BLOB_ENTRY("ResetCEFR",	DRXD_ResetCEFR		),

	_BLOB_ENTRY("ResetECRAM",	DRXD_ResetECRAM		),

	_BLOB_ENTRY("microcode",	DRXD_microcode		),

#undef _BLOB_ENTRY

#endif /* _BLOB_ENTRY */