069ebbfc9e
Throughout the zig-zag-implementations, inversion is taken into account when reading and writing the CFR register, which contains the derotator frequency. As swapping IQ signals changes the sign of that register for example, the idea is to compensate that sign change by multiplying the register value with the inversion enum value. The current enum values 0 and 1 for IQ_SWAP_OFF and IQ_SWAP_ON don't work in the case IQ_SWAP_OFF, due to the multiplication by zero (I've only found a single device which actually uses IQ_SWAP_OFF in it's config). I've changed the enum values to +1 and -1 to accommodate to the intended usage. Signed-off-by: Reinhard Nißl <rnissl@gmx.de> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
161 lines
4.1 KiB
C
161 lines
4.1 KiB
C
/*
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STB0899 Multistandard Frontend driver
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Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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Copyright (C) ST Microelectronics
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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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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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GNU General Public License for more details.
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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 __STB0899_DRV_H
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#define __STB0899_DRV_H
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include "dvb_frontend.h"
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#define STB0899_TSMODE_SERIAL 1
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#define STB0899_CLKPOL_FALLING 2
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#define STB0899_CLKNULL_PARITY 3
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#define STB0899_SYNC_FORCED 4
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#define STB0899_FECMODE_DSS 5
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struct stb0899_s1_reg {
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u16 address;
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u8 data;
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};
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struct stb0899_s2_reg {
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u16 offset;
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u32 base_address;
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u32 data;
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};
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enum stb0899_inversion {
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IQ_SWAP_OFF = +1, /* inversion affects the sign of e. g. */
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IQ_SWAP_ON = -1, /* the derotator frequency register */
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};
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#define STB0899_GPIO00 0xf140
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#define STB0899_GPIO01 0xf141
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#define STB0899_GPIO02 0xf142
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#define STB0899_GPIO03 0xf143
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#define STB0899_GPIO04 0xf144
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#define STB0899_GPIO05 0xf145
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#define STB0899_GPIO06 0xf146
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#define STB0899_GPIO07 0xf147
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#define STB0899_GPIO08 0xf148
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#define STB0899_GPIO09 0xf149
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#define STB0899_GPIO10 0xf14a
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#define STB0899_GPIO11 0xf14b
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#define STB0899_GPIO12 0xf14c
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#define STB0899_GPIO13 0xf14d
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#define STB0899_GPIO14 0xf14e
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#define STB0899_GPIO15 0xf14f
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#define STB0899_GPIO16 0xf150
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#define STB0899_GPIO17 0xf151
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#define STB0899_GPIO18 0xf152
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#define STB0899_GPIO19 0xf153
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#define STB0899_GPIO20 0xf154
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#define STB0899_GPIOPULLUP 0x01 /* Output device is connected to Vdd */
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#define STB0899_GPIOPULLDN 0x00 /* Output device is connected to Vss */
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#define STB0899_POSTPROC_GPIO_POWER 0x00
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#define STB0899_POSTPROC_GPIO_LOCK 0x01
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/*
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* Post process output configuration control
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* 1. POWER ON/OFF (index 0)
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* 2. FE_HAS_LOCK/LOCK_LOSS (index 1)
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*
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* @gpio = one of the above listed GPIO's
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* @level = output state: pulled up or low
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*/
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struct stb0899_postproc {
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u16 gpio;
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u8 level;
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};
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struct stb0899_config {
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const struct stb0899_s1_reg *init_dev;
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const struct stb0899_s2_reg *init_s2_demod;
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const struct stb0899_s1_reg *init_s1_demod;
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const struct stb0899_s2_reg *init_s2_fec;
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const struct stb0899_s1_reg *init_tst;
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const struct stb0899_postproc *postproc;
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enum stb0899_inversion inversion;
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u32 xtal_freq;
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u8 demod_address;
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u8 ts_output_mode;
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u8 block_sync_mode;
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u8 ts_pfbit_toggle;
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u8 clock_polarity;
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u8 data_clk_parity;
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u8 fec_mode;
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u8 data_output_ctl;
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u8 data_fifo_mode;
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u8 out_rate_comp;
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u8 i2c_repeater;
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// int inversion;
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int lo_clk;
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int hi_clk;
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u32 esno_ave;
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u32 esno_quant;
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u32 avframes_coarse;
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u32 avframes_fine;
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u32 miss_threshold;
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u32 uwp_threshold_acq;
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u32 uwp_threshold_track;
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u32 uwp_threshold_sof;
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u32 sof_search_timeout;
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u32 btr_nco_bits;
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u32 btr_gain_shift_offset;
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u32 crl_nco_bits;
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u32 ldpc_max_iter;
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int (*tuner_set_frequency)(struct dvb_frontend *fe, u32 frequency);
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int (*tuner_get_frequency)(struct dvb_frontend *fe, u32 *frequency);
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int (*tuner_set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth);
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int (*tuner_get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
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int (*tuner_set_rfsiggain)(struct dvb_frontend *fe, u32 rf_gain);
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};
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#if IS_ENABLED(CONFIG_DVB_STB0899)
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extern struct dvb_frontend *stb0899_attach(struct stb0899_config *config,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend *stb0899_attach(struct stb0899_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_STB0899
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#endif
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