131 lines
2.9 KiB
C
131 lines
2.9 KiB
C
/*
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* Driver for Micronas DVB-T drx397xD demodulator
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*
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* Copyright (C) 2007 Henk vergonet <Henk.Vergonet@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.=
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*/
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#ifndef _DRX397XD_H_INCLUDED
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#define _DRX397XD_H_INCLUDED
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#include <linux/dvb/frontend.h>
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#define DRX_F_STEPSIZE 166667
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#define DRX_F_OFFSET 36000000
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#define I2C_ADR_C0(x) \
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( cpu_to_le32( \
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(u32)( \
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(((u32)(x) & (u32)0x000000ffUL) ) | \
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(((u32)(x) & (u32)0x0000ff00UL) << 16) | \
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(((u32)(x) & (u32)0x0fff0000UL) >> 8) | \
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( (u32)0x00c00000UL) \
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)) \
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)
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#define I2C_ADR_E0(x) \
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( cpu_to_le32( \
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(u32)( \
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(((u32)(x) & (u32)0x000000ffUL) ) | \
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(((u32)(x) & (u32)0x0000ff00UL) << 16) | \
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(((u32)(x) & (u32)0x0fff0000UL) >> 8) | \
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( (u32)0x00e00000UL) \
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)) \
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)
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struct drx397xD_CfgRfAgc /* 0x7c */
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{
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int d00; /* 2 */
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u16 w04;
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u16 w06;
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};
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struct drx397xD_CfgIfAgc /* 0x68 */
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{
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int d00; /* 0 */
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u16 w04; /* 0 */
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u16 w06;
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u16 w08;
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u16 w0A;
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u16 w0C;
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};
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struct drx397xD_s20 {
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int d04;
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u32 d18;
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u32 d1C;
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u32 d20;
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u32 d14;
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u32 d24;
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u32 d0C;
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u32 d08;
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};
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struct drx397xD_config
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{
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/* demodulator's I2C address */
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u8 demod_address; /* 0x0f */
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struct drx397xD_CfgIfAgc ifagc; /* 0x68 */
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struct drx397xD_CfgRfAgc rfagc; /* 0x7c */
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u32 s20d24;
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/* HI_CfgCommand parameters */
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u16 w50, w52, /* w54, */ w56;
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int d5C;
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int d60;
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int d48;
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int d28;
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u32 f_if; /* d14: intermediate frequency [Hz] */
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/* 36000000 on Cinergy 2400i DT */
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/* 42800000 on Pinnacle Hybrid PRO 330e */
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u16 f_osc; /* s66: 48000 oscillator frequency [kHz] */
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u16 w92; /* 20000 */
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u16 wA0;
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u16 w98;
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u16 w9A;
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u16 w9C; /* 0xe0 */
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u16 w9E; /* 0x00 */
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/* used for signal strength calculations in
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drx397x_read_signal_strength
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*/
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u16 ss78; // 2200
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u16 ss7A; // 150
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u16 ss76; // 820
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};
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#if defined(CONFIG_DVB_DRX397XD) || (defined(CONFIG_DVB_DRX397XD_MODULE) && defined(MODULE))
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extern struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config,
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struct i2c_adapter *i2c)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif /* CONFIG_DVB_DRX397XD */
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#endif /* _DRX397XD_H_INCLUDED */
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