1646 lines
44 KiB
C
1646 lines
44 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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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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*/
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#include <linux/init.h>
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#include <linux/jiffies.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/dvb/frontend.h>
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#include <media/dvb_frontend.h>
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#include "stb0899_drv.h"
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#include "stb0899_priv.h"
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#include "stb0899_reg.h"
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/* Max transfer size done by I2C transfer functions */
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#define MAX_XFER_SIZE 64
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static unsigned int verbose = 0;//1;
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module_param(verbose, int, 0644);
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/* C/N in dB/10, NIRM/NIRL */
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static const struct stb0899_tab stb0899_cn_tab[] = {
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{ 200, 2600 },
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{ 190, 2700 },
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{ 180, 2860 },
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{ 170, 3020 },
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{ 160, 3210 },
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{ 150, 3440 },
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{ 140, 3710 },
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{ 130, 4010 },
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{ 120, 4360 },
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{ 110, 4740 },
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{ 100, 5190 },
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{ 90, 5670 },
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{ 80, 6200 },
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{ 70, 6770 },
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{ 60, 7360 },
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{ 50, 7970 },
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{ 40, 8250 },
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{ 30, 9000 },
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{ 20, 9450 },
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{ 15, 9600 },
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};
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/* DVB-S AGCIQ_VALUE vs. signal level in dBm/10.
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* As measured, connected to a modulator.
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* -8.0 to -50.0 dBm directly connected,
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* -52.0 to -74.8 with extra attenuation.
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* Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm.
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* Crude linear extrapolation below -84.8dBm and above -8.0dBm.
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*/
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static const struct stb0899_tab stb0899_dvbsrf_tab[] = {
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{ -750, -128 },
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{ -748, -94 },
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{ -745, -92 },
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{ -735, -90 },
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{ -720, -87 },
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{ -670, -77 },
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{ -640, -70 },
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{ -610, -62 },
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{ -600, -60 },
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{ -590, -56 },
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{ -560, -41 },
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{ -540, -25 },
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{ -530, -17 },
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{ -520, -11 },
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{ -500, 1 },
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{ -490, 6 },
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{ -480, 10 },
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{ -440, 22 },
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{ -420, 27 },
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{ -400, 31 },
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{ -380, 34 },
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{ -340, 40 },
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{ -320, 43 },
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{ -280, 48 },
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{ -250, 52 },
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{ -230, 55 },
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{ -180, 61 },
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{ -140, 66 },
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{ -90, 73 },
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{ -80, 74 },
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{ 500, 127 }
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};
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/* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10.
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* As measured, connected to a modulator.
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* -8.0 to -50.1 dBm directly connected,
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* -53.0 to -76.6 with extra attenuation.
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* Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm.
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* Crude linear extrapolation below -76.6dBm and above -8.0dBm.
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*/
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static const struct stb0899_tab stb0899_dvbs2rf_tab[] = {
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{ 700, 0 },
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{ -80, 3217 },
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{ -150, 3893 },
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{ -190, 4217 },
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{ -240, 4621 },
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{ -280, 4945 },
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{ -320, 5273 },
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{ -350, 5545 },
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{ -370, 5741 },
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{ -410, 6147 },
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{ -450, 6671 },
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{ -490, 7413 },
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{ -501, 7665 },
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{ -530, 8767 },
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{ -560, 10219 },
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{ -580, 10939 },
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{ -590, 11518 },
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{ -600, 11723 },
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{ -650, 12659 },
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{ -690, 13219 },
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{ -730, 13645 },
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{ -750, 13909 },
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{ -766, 14153 },
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{ -950, 16383 }
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};
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/* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/
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static struct stb0899_tab stb0899_quant_tab[] = {
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{ 0, 0 },
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{ 0, 100 },
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{ 600, 200 },
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{ 950, 299 },
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{ 1200, 398 },
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{ 1400, 501 },
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{ 1560, 603 },
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{ 1690, 700 },
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{ 1810, 804 },
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{ 1910, 902 },
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{ 2000, 1000 },
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{ 2080, 1096 },
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{ 2160, 1202 },
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{ 2230, 1303 },
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{ 2350, 1496 },
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{ 2410, 1603 },
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{ 2460, 1698 },
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{ 2510, 1799 },
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{ 2600, 1995 },
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{ 2650, 2113 },
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{ 2690, 2213 },
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{ 2720, 2291 },
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{ 2760, 2399 },
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{ 2800, 2512 },
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{ 2860, 2692 },
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{ 2930, 2917 },
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{ 2960, 3020 },
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{ 3010, 3199 },
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{ 3040, 3311 },
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{ 3060, 3388 },
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{ 3120, 3631 },
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{ 3190, 3936 },
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{ 3400, 5012 },
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{ 3610, 6383 },
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{ 3800, 7943 },
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{ 4210, 12735 },
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{ 4500, 17783 },
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{ 4690, 22131 },
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{ 4810, 25410 }
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};
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/* DVB-S2 Es/N0 estimate in dB/100 vs read value */
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static struct stb0899_tab stb0899_est_tab[] = {
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{ 0, 0 },
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{ 0, 1 },
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{ 301, 2 },
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{ 1204, 16 },
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{ 1806, 64 },
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{ 2408, 256 },
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{ 2709, 512 },
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{ 3010, 1023 },
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{ 3311, 2046 },
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{ 3612, 4093 },
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{ 3823, 6653 },
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{ 3913, 8185 },
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{ 4010, 10233 },
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{ 4107, 12794 },
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{ 4214, 16368 },
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{ 4266, 18450 },
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{ 4311, 20464 },
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{ 4353, 22542 },
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{ 4391, 24604 },
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{ 4425, 26607 },
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{ 4457, 28642 },
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{ 4487, 30690 },
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{ 4515, 32734 },
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{ 4612, 40926 },
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{ 4692, 49204 },
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{ 4816, 65464 },
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{ 4913, 81846 },
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{ 4993, 98401 },
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{ 5060, 114815 },
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{ 5118, 131220 },
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{ 5200, 158489 },
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{ 5300, 199526 },
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{ 5400, 251189 },
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{ 5500, 316228 },
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{ 5600, 398107 },
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{ 5720, 524807 },
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{ 5721, 526017 },
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};
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static int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
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{
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int ret;
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u8 b0[] = { reg >> 8, reg & 0xff };
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u8 buf;
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struct i2c_msg msg[] = {
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{
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.addr = state->config->demod_address,
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.flags = 0,
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.buf = b0,
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.len = 2
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},{
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.addr = state->config->demod_address,
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.flags = I2C_M_RD,
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.buf = &buf,
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.len = 1
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}
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};
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ret = i2c_transfer(state->i2c, msg, 2);
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if (ret != 2) {
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if (ret != -ERESTARTSYS)
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dprintk(state->verbose, FE_ERROR, 1,
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"Read error, Reg=[0x%02x], Status=%d",
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reg, ret);
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return ret < 0 ? ret : -EREMOTEIO;
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}
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if (unlikely(*state->verbose >= FE_DEBUGREG))
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dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
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reg, buf);
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return (unsigned int)buf;
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}
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int stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
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{
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int result;
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result = _stb0899_read_reg(state, reg);
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/*
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* Bug ID 9:
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* access to 0xf2xx/0xf6xx
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* must be followed by read from 0xf2ff/0xf6ff.
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*/
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if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
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(((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
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_stb0899_read_reg(state, (reg | 0x00ff));
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return result;
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}
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u32 _stb0899_read_s2reg(struct stb0899_state *state,
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u32 stb0899_i2cdev,
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u32 stb0899_base_addr,
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u16 stb0899_reg_offset)
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{
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int status;
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u32 data;
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u8 buf[7] = { 0 };
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u16 tmpaddr;
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u8 buf_0[] = {
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GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
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GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
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GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
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GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
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GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
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GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
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};
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u8 buf_1[] = {
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0x00, /* 0xf3 Reg Offset */
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0x00, /* 0x44 Reg Offset */
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};
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struct i2c_msg msg_0 = {
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.addr = state->config->demod_address,
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.flags = 0,
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.buf = buf_0,
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.len = 6
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};
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struct i2c_msg msg_1 = {
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.addr = state->config->demod_address,
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.flags = 0,
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.buf = buf_1,
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.len = 2
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};
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struct i2c_msg msg_r = {
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.addr = state->config->demod_address,
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.flags = I2C_M_RD,
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.buf = buf,
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.len = 4
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};
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tmpaddr = stb0899_reg_offset & 0xff00;
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if (!(stb0899_reg_offset & 0x8))
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tmpaddr = stb0899_reg_offset | 0x20;
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buf_1[0] = GETBYTE(tmpaddr, BYTE1);
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buf_1[1] = GETBYTE(tmpaddr, BYTE0);
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status = i2c_transfer(state->i2c, &msg_0, 1);
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if (status < 1) {
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if (status != -ERESTARTSYS)
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printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
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__func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
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goto err;
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}
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/* Dummy */
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status = i2c_transfer(state->i2c, &msg_1, 1);
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if (status < 1)
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goto err;
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status = i2c_transfer(state->i2c, &msg_r, 1);
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if (status < 1)
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goto err;
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buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
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buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
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/* Actual */
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status = i2c_transfer(state->i2c, &msg_1, 1);
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if (status < 1) {
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if (status != -ERESTARTSYS)
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printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
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__func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
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goto err;
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}
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status = i2c_transfer(state->i2c, &msg_r, 1);
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if (status < 1) {
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if (status != -ERESTARTSYS)
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printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
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__func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
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return status < 0 ? status : -EREMOTEIO;
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}
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data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]);
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if (unlikely(*state->verbose >= FE_DEBUGREG))
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printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
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__func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data);
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return data;
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err:
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return status < 0 ? status : -EREMOTEIO;
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}
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int stb0899_write_s2reg(struct stb0899_state *state,
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u32 stb0899_i2cdev,
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u32 stb0899_base_addr,
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u16 stb0899_reg_offset,
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u32 stb0899_data)
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{
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int status;
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/* Base Address Setup */
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u8 buf_0[] = {
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GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
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GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
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GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
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GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
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GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
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GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
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};
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u8 buf_1[] = {
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0x00, /* 0xf3 Reg Offset */
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0x00, /* 0x44 Reg Offset */
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0x00, /* data */
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0x00, /* data */
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0x00, /* data */
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0x00, /* data */
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};
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struct i2c_msg msg_0 = {
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.addr = state->config->demod_address,
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.flags = 0,
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.buf = buf_0,
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.len = 6
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};
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struct i2c_msg msg_1 = {
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.addr = state->config->demod_address,
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.flags = 0,
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.buf = buf_1,
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.len = 6
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};
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buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
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buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
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buf_1[2] = GETBYTE(stb0899_data, BYTE0);
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buf_1[3] = GETBYTE(stb0899_data, BYTE1);
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buf_1[4] = GETBYTE(stb0899_data, BYTE2);
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buf_1[5] = GETBYTE(stb0899_data, BYTE3);
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if (unlikely(*state->verbose >= FE_DEBUGREG))
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printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
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__func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data);
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status = i2c_transfer(state->i2c, &msg_0, 1);
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if (unlikely(status < 1)) {
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if (status != -ERESTARTSYS)
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printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
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__func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
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goto err;
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}
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status = i2c_transfer(state->i2c, &msg_1, 1);
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if (unlikely(status < 1)) {
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if (status != -ERESTARTSYS)
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printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
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__func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
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return status < 0 ? status : -EREMOTEIO;
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}
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return 0;
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err:
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return status < 0 ? status : -EREMOTEIO;
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}
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int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, u32 count)
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{
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int status;
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u8 b0[] = { reg >> 8, reg & 0xff };
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struct i2c_msg msg[] = {
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{
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.addr = state->config->demod_address,
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.flags = 0,
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.buf = b0,
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.len = 2
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},{
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.addr = state->config->demod_address,
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.flags = I2C_M_RD,
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.buf = buf,
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.len = count
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}
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};
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status = i2c_transfer(state->i2c, msg, 2);
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if (status != 2) {
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if (status != -ERESTARTSYS)
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printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n",
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__func__, reg, count, status);
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goto err;
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}
|
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/*
|
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* Bug ID 9:
|
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* access to 0xf2xx/0xf6xx
|
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* must be followed by read from 0xf2ff/0xf6ff.
|
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*/
|
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if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
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(((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
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_stb0899_read_reg(state, (reg | 0x00ff));
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dprintk(state->verbose, FE_DEBUGREG, 1,
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"%s [0x%04x]: %*ph", __func__, reg, count, buf);
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return 0;
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err:
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return status < 0 ? status : -EREMOTEIO;
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}
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|
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int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count)
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{
|
|
int ret;
|
|
u8 buf[MAX_XFER_SIZE];
|
|
struct i2c_msg i2c_msg = {
|
|
.addr = state->config->demod_address,
|
|
.flags = 0,
|
|
.buf = buf,
|
|
.len = 2 + count
|
|
};
|
|
|
|
if (2 + count > sizeof(buf)) {
|
|
printk(KERN_WARNING
|
|
"%s: i2c wr reg=%04x: len=%d is too big!\n",
|
|
KBUILD_MODNAME, reg, count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
buf[0] = reg >> 8;
|
|
buf[1] = reg & 0xff;
|
|
memcpy(&buf[2], data, count);
|
|
|
|
dprintk(state->verbose, FE_DEBUGREG, 1,
|
|
"%s [0x%04x]: %*ph", __func__, reg, count, data);
|
|
ret = i2c_transfer(state->i2c, &i2c_msg, 1);
|
|
|
|
/*
|
|
* Bug ID 9:
|
|
* access to 0xf2xx/0xf6xx
|
|
* must be followed by read from 0xf2ff/0xf6ff.
|
|
*/
|
|
if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
|
|
stb0899_read_reg(state, (reg | 0x00ff));
|
|
|
|
if (ret != 1) {
|
|
if (ret != -ERESTARTSYS)
|
|
dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
|
|
reg, data[0], count, ret);
|
|
return ret < 0 ? ret : -EREMOTEIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data)
|
|
{
|
|
u8 tmp = data;
|
|
return stb0899_write_regs(state, reg, &tmp, 1);
|
|
}
|
|
|
|
/*
|
|
* stb0899_get_mclk
|
|
* Get STB0899 master clock frequency
|
|
* ExtClk: external clock frequency (Hz)
|
|
*/
|
|
static u32 stb0899_get_mclk(struct stb0899_state *state)
|
|
{
|
|
u32 mclk = 0, div = 0;
|
|
|
|
div = stb0899_read_reg(state, STB0899_NCOARSE);
|
|
mclk = (div + 1) * state->config->xtal_freq / 6;
|
|
dprintk(state->verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk);
|
|
|
|
return mclk;
|
|
}
|
|
|
|
/*
|
|
* stb0899_set_mclk
|
|
* Set STB0899 master Clock frequency
|
|
* Mclk: demodulator master clock
|
|
* ExtClk: external clock frequency (Hz)
|
|
*/
|
|
static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk)
|
|
{
|
|
struct stb0899_internal *internal = &state->internal;
|
|
u8 mdiv = 0;
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "state->config=%p", state->config);
|
|
mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1;
|
|
dprintk(state->verbose, FE_DEBUG, 1, "mdiv=%d", mdiv);
|
|
|
|
stb0899_write_reg(state, STB0899_NCOARSE, mdiv);
|
|
internal->master_clk = stb0899_get_mclk(state);
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk);
|
|
}
|
|
|
|
static int stb0899_postproc(struct stb0899_state *state, u8 ctl, int enable)
|
|
{
|
|
struct stb0899_config *config = state->config;
|
|
const struct stb0899_postproc *postproc = config->postproc;
|
|
|
|
/* post process event */
|
|
if (postproc) {
|
|
if (enable) {
|
|
if (postproc[ctl].level == STB0899_GPIOPULLUP)
|
|
stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
|
|
else
|
|
stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
|
|
} else {
|
|
if (postproc[ctl].level == STB0899_GPIOPULLUP)
|
|
stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
|
|
else
|
|
stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void stb0899_detach(struct dvb_frontend *fe)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
|
|
/* post process event */
|
|
stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
|
|
}
|
|
|
|
static void stb0899_release(struct dvb_frontend *fe)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Release Frontend");
|
|
kfree(state);
|
|
}
|
|
|
|
/*
|
|
* stb0899_get_alpha
|
|
* return: rolloff
|
|
*/
|
|
static int stb0899_get_alpha(struct stb0899_state *state)
|
|
{
|
|
u8 mode_coeff;
|
|
|
|
mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
|
|
|
|
if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
|
|
return 20;
|
|
else
|
|
return 35;
|
|
}
|
|
|
|
/*
|
|
* stb0899_init_calc
|
|
*/
|
|
static void stb0899_init_calc(struct stb0899_state *state)
|
|
{
|
|
struct stb0899_internal *internal = &state->internal;
|
|
int master_clk;
|
|
u8 agc[2];
|
|
u32 reg;
|
|
|
|
/* Read registers (in burst mode) */
|
|
stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O */
|
|
|
|
/* Initial calculations */
|
|
master_clk = stb0899_get_mclk(state);
|
|
internal->t_agc1 = 0;
|
|
internal->t_agc2 = 0;
|
|
internal->master_clk = master_clk;
|
|
internal->mclk = master_clk / 65536L;
|
|
internal->rolloff = stb0899_get_alpha(state);
|
|
|
|
/* DVBS2 Initial calculations */
|
|
/* Set AGC value to the middle */
|
|
internal->agc_gain = 8154;
|
|
reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
|
|
STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
|
|
stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
|
|
|
|
reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
|
|
internal->rrc_alpha = STB0899_GETFIELD(RRC_ALPHA, reg);
|
|
|
|
internal->center_freq = 0;
|
|
internal->av_frame_coarse = 10;
|
|
internal->av_frame_fine = 20;
|
|
internal->step_size = 2;
|
|
/*
|
|
if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
|
|
pParams->IQLocked = 0;
|
|
else
|
|
pParams->IQLocked = 1;
|
|
*/
|
|
}
|
|
|
|
static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
|
|
{
|
|
u8 reg = 0;
|
|
unsigned long start = jiffies;
|
|
|
|
while (1) {
|
|
reg = stb0899_read_reg(state, STB0899_DISSTATUS);
|
|
if (!STB0899_GETFIELD(FIFOFULL, reg))
|
|
break;
|
|
if (time_after(jiffies, start + timeout)) {
|
|
dprintk(state->verbose, FE_ERROR, 1, "timed out !!");
|
|
return -ETIMEDOUT;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
u8 reg, i;
|
|
|
|
if (cmd->msg_len > sizeof(cmd->msg))
|
|
return -EINVAL;
|
|
|
|
/* enable FIFO precharge */
|
|
reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
|
|
STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
|
|
stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
|
|
for (i = 0; i < cmd->msg_len; i++) {
|
|
/* wait for FIFO empty */
|
|
if (stb0899_wait_diseqc_fifo_empty(state, 100) < 0)
|
|
return -ETIMEDOUT;
|
|
|
|
stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
|
|
}
|
|
reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
|
|
STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
|
|
stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
|
|
msleep(100);
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
|
|
{
|
|
u8 reg = 0;
|
|
unsigned long start = jiffies;
|
|
|
|
while (!STB0899_GETFIELD(RXEND, reg)) {
|
|
reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
|
|
if (time_after(jiffies, start + timeout)) {
|
|
dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
|
|
return -ETIMEDOUT;
|
|
}
|
|
msleep(10);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
u8 reg, length = 0, i;
|
|
int result;
|
|
|
|
if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
|
|
return -ETIMEDOUT;
|
|
|
|
reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
|
|
if (STB0899_GETFIELD(RXEND, reg)) {
|
|
|
|
reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
|
|
length = STB0899_GETFIELD(FIFOBYTENBR, reg);
|
|
|
|
if (length > sizeof (reply->msg)) {
|
|
result = -EOVERFLOW;
|
|
goto exit;
|
|
}
|
|
reply->msg_len = length;
|
|
|
|
/* extract data */
|
|
for (i = 0; i < length; i++)
|
|
reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
|
|
}
|
|
|
|
return 0;
|
|
exit:
|
|
|
|
return result;
|
|
}
|
|
|
|
static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
|
|
{
|
|
u8 reg = 0;
|
|
unsigned long start = jiffies;
|
|
|
|
while (!STB0899_GETFIELD(TXIDLE, reg)) {
|
|
reg = stb0899_read_reg(state, STB0899_DISSTATUS);
|
|
if (time_after(jiffies, start + timeout)) {
|
|
dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
|
|
return -ETIMEDOUT;
|
|
}
|
|
msleep(10);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_send_diseqc_burst(struct dvb_frontend *fe,
|
|
enum fe_sec_mini_cmd burst)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
u8 reg, old_state;
|
|
|
|
/* wait for diseqc idle */
|
|
if (stb0899_wait_diseqc_txidle(state, 100) < 0)
|
|
return -ETIMEDOUT;
|
|
|
|
reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
|
|
old_state = reg;
|
|
/* set to burst mode */
|
|
STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x03);
|
|
STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
|
|
stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
|
|
switch (burst) {
|
|
case SEC_MINI_A:
|
|
/* unmodulated */
|
|
stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
|
|
break;
|
|
case SEC_MINI_B:
|
|
/* modulated */
|
|
stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
|
|
break;
|
|
}
|
|
reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
|
|
STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
|
|
stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
|
|
/* wait for diseqc idle */
|
|
if (stb0899_wait_diseqc_txidle(state, 100) < 0)
|
|
return -ETIMEDOUT;
|
|
|
|
/* restore state */
|
|
stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_diseqc_init(struct stb0899_state *state)
|
|
{
|
|
/*
|
|
struct dvb_diseqc_slave_reply rx_data;
|
|
*/
|
|
u8 f22_tx, reg;
|
|
|
|
u32 mclk, tx_freq = 22000;/* count = 0, i; */
|
|
reg = stb0899_read_reg(state, STB0899_DISCNTRL2);
|
|
STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0);
|
|
stb0899_write_reg(state, STB0899_DISCNTRL2, reg);
|
|
|
|
/* disable Tx spy */
|
|
reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
|
|
STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1);
|
|
stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
|
|
|
|
reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
|
|
STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0);
|
|
stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
|
|
|
|
mclk = stb0899_get_mclk(state);
|
|
f22_tx = mclk / (tx_freq * 32);
|
|
stb0899_write_reg(state, STB0899_DISF22, f22_tx); /* DiSEqC Tx freq */
|
|
state->rx_freq = 20000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_sleep(struct dvb_frontend *fe)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
/*
|
|
u8 reg;
|
|
*/
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
|
|
/* post process event */
|
|
stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_wakeup(struct dvb_frontend *fe)
|
|
{
|
|
int rc;
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
|
|
if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
|
|
return rc;
|
|
/* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
|
|
if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
|
|
return rc;
|
|
if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
|
|
return rc;
|
|
|
|
/* post process event */
|
|
stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_init(struct dvb_frontend *fe)
|
|
{
|
|
int i;
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
struct stb0899_config *config = state->config;
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
|
|
|
|
/* init device */
|
|
dprintk(state->verbose, FE_DEBUG, 1, "init device");
|
|
for (i = 0; config->init_dev[i].address != 0xffff; i++)
|
|
stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "init S2 demod");
|
|
/* init S2 demod */
|
|
for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
|
|
stb0899_write_s2reg(state, STB0899_S2DEMOD,
|
|
config->init_s2_demod[i].base_address,
|
|
config->init_s2_demod[i].offset,
|
|
config->init_s2_demod[i].data);
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "init S1 demod");
|
|
/* init S1 demod */
|
|
for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
|
|
stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "init S2 FEC");
|
|
/* init S2 fec */
|
|
for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
|
|
stb0899_write_s2reg(state, STB0899_S2FEC,
|
|
config->init_s2_fec[i].base_address,
|
|
config->init_s2_fec[i].offset,
|
|
config->init_s2_fec[i].data);
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "init TST");
|
|
/* init test */
|
|
for (i = 0; config->init_tst[i].address != 0xffff; i++)
|
|
stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
|
|
|
|
stb0899_init_calc(state);
|
|
stb0899_diseqc_init(state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
|
|
{
|
|
int res = 0;
|
|
int min = 0, med;
|
|
|
|
if (val < tab[min].read)
|
|
res = tab[min].real;
|
|
else if (val >= tab[max].read)
|
|
res = tab[max].real;
|
|
else {
|
|
while ((max - min) > 1) {
|
|
med = (max + min) / 2;
|
|
if (val >= tab[min].read && val < tab[med].read)
|
|
max = med;
|
|
else
|
|
min = med;
|
|
}
|
|
res = ((val - tab[min].read) *
|
|
(tab[max].real - tab[min].real) /
|
|
(tab[max].read - tab[min].read)) +
|
|
tab[min].real;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
struct stb0899_internal *internal = &state->internal;
|
|
|
|
int val;
|
|
u32 reg;
|
|
*strength = 0;
|
|
switch (state->delsys) {
|
|
case SYS_DVBS:
|
|
case SYS_DSS:
|
|
if (internal->lock) {
|
|
reg = stb0899_read_reg(state, STB0899_VSTATUS);
|
|
if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
|
|
|
|
reg = stb0899_read_reg(state, STB0899_AGCIQIN);
|
|
val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
|
|
|
|
*strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
|
|
*strength += 750;
|
|
dprintk(state->verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
|
|
val & 0xff, *strength);
|
|
}
|
|
}
|
|
break;
|
|
case SYS_DVBS2:
|
|
if (internal->lock) {
|
|
reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_GAIN);
|
|
val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
|
|
|
|
*strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
|
|
*strength += 950;
|
|
dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
|
|
val & 0x3fff, *strength);
|
|
}
|
|
break;
|
|
default:
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
struct stb0899_internal *internal = &state->internal;
|
|
|
|
unsigned int val, quant, quantn = -1, est, estn = -1;
|
|
u8 buf[2];
|
|
u32 reg;
|
|
|
|
*snr = 0;
|
|
reg = stb0899_read_reg(state, STB0899_VSTATUS);
|
|
switch (state->delsys) {
|
|
case SYS_DVBS:
|
|
case SYS_DSS:
|
|
if (internal->lock) {
|
|
if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
|
|
|
|
stb0899_read_regs(state, STB0899_NIRM, buf, 2);
|
|
val = MAKEWORD16(buf[0], buf[1]);
|
|
|
|
*snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
|
|
dprintk(state->verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
|
|
buf[0], buf[1], val, *snr);
|
|
}
|
|
}
|
|
break;
|
|
case SYS_DVBS2:
|
|
if (internal->lock) {
|
|
reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
|
|
quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
|
|
reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
|
|
est = STB0899_GETFIELD(ESN0_EST, reg);
|
|
if (est == 1)
|
|
val = 301; /* C/N = 30.1 dB */
|
|
else if (est == 2)
|
|
val = 270; /* C/N = 27.0 dB */
|
|
else {
|
|
/* quantn = 100 * log(quant^2) */
|
|
quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
|
|
/* estn = 100 * log(est) */
|
|
estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
|
|
/* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
|
|
val = (quantn - estn) / 10;
|
|
}
|
|
*snr = val;
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
|
|
quant, quantn, est, estn, val);
|
|
}
|
|
break;
|
|
default:
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
struct stb0899_internal *internal = &state->internal;
|
|
u8 reg;
|
|
*status = 0;
|
|
|
|
switch (state->delsys) {
|
|
case SYS_DVBS:
|
|
case SYS_DSS:
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
|
|
if (internal->lock) {
|
|
reg = stb0899_read_reg(state, STB0899_VSTATUS);
|
|
if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
|
|
dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
|
|
*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK;
|
|
|
|
reg = stb0899_read_reg(state, STB0899_PLPARM);
|
|
if (STB0899_GETFIELD(VITCURPUN, reg)) {
|
|
dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
|
|
*status |= FE_HAS_VITERBI | FE_HAS_SYNC;
|
|
/* post process event */
|
|
stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case SYS_DVBS2:
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
|
|
if (internal->lock) {
|
|
reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
|
|
if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
|
|
*status |= FE_HAS_CARRIER;
|
|
dprintk(state->verbose, FE_DEBUG, 1,
|
|
"UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
|
|
|
|
reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
|
|
if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
|
|
*status |= FE_HAS_LOCK;
|
|
dprintk(state->verbose, FE_DEBUG, 1,
|
|
"Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
|
|
|
|
}
|
|
if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
|
|
*status |= FE_HAS_VITERBI;
|
|
dprintk(state->verbose, FE_DEBUG, 1,
|
|
"Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
|
|
}
|
|
if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
|
|
*status |= FE_HAS_SYNC;
|
|
dprintk(state->verbose, FE_DEBUG, 1,
|
|
"Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
|
|
/* post process event */
|
|
stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* stb0899_get_error
|
|
* viterbi error for DVB-S/DSS
|
|
* packet error for DVB-S2
|
|
* Bit Error Rate or Packet Error Rate * 10 ^ 7
|
|
*/
|
|
static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
struct stb0899_internal *internal = &state->internal;
|
|
|
|
u8 lsb, msb;
|
|
|
|
*ber = 0;
|
|
|
|
switch (state->delsys) {
|
|
case SYS_DVBS:
|
|
case SYS_DSS:
|
|
if (internal->lock) {
|
|
lsb = stb0899_read_reg(state, STB0899_ECNT1L);
|
|
msb = stb0899_read_reg(state, STB0899_ECNT1M);
|
|
*ber = MAKEWORD16(msb, lsb);
|
|
/* Viterbi Check */
|
|
if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
|
|
/* Error Rate */
|
|
*ber *= 9766;
|
|
/* ber = ber * 10 ^ 7 */
|
|
*ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
|
|
*ber /= 8;
|
|
}
|
|
}
|
|
break;
|
|
case SYS_DVBS2:
|
|
if (internal->lock) {
|
|
lsb = stb0899_read_reg(state, STB0899_ECNT1L);
|
|
msb = stb0899_read_reg(state, STB0899_ECNT1M);
|
|
*ber = MAKEWORD16(msb, lsb);
|
|
/* ber = ber * 10 ^ 7 */
|
|
*ber *= 10000000;
|
|
*ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
|
|
}
|
|
break;
|
|
default:
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_set_voltage(struct dvb_frontend *fe,
|
|
enum fe_sec_voltage voltage)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
|
|
switch (voltage) {
|
|
case SEC_VOLTAGE_13:
|
|
stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
|
|
stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
|
|
stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
|
|
break;
|
|
case SEC_VOLTAGE_18:
|
|
stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
|
|
stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
|
|
stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
|
|
break;
|
|
case SEC_VOLTAGE_OFF:
|
|
stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
|
|
stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
|
|
stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stb0899_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
struct stb0899_internal *internal = &state->internal;
|
|
|
|
u8 div, reg;
|
|
|
|
/* wait for diseqc idle */
|
|
if (stb0899_wait_diseqc_txidle(state, 100) < 0)
|
|
return -ETIMEDOUT;
|
|
|
|
switch (tone) {
|
|
case SEC_TONE_ON:
|
|
div = (internal->master_clk / 100) / 5632;
|
|
div = (div + 5) / 10;
|
|
stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
|
|
reg = stb0899_read_reg(state, STB0899_ACRPRESC);
|
|
STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03);
|
|
stb0899_write_reg(state, STB0899_ACRPRESC, reg);
|
|
stb0899_write_reg(state, STB0899_ACRDIV1, div);
|
|
break;
|
|
case SEC_TONE_OFF:
|
|
stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
|
|
{
|
|
int i2c_stat;
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
|
|
i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
|
|
if (i2c_stat < 0)
|
|
goto err;
|
|
|
|
if (enable) {
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
|
|
i2c_stat |= STB0899_I2CTON;
|
|
if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
|
|
goto err;
|
|
} else {
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Disabling I2C Repeater ...");
|
|
i2c_stat &= ~STB0899_I2CTON;
|
|
if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
|
|
goto err;
|
|
}
|
|
return 0;
|
|
err:
|
|
dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater control failed");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
|
|
static inline void CONVERT32(u32 x, char *str)
|
|
{
|
|
*str++ = (x >> 24) & 0xff;
|
|
*str++ = (x >> 16) & 0xff;
|
|
*str++ = (x >> 8) & 0xff;
|
|
*str++ = (x >> 0) & 0xff;
|
|
*str = '\0';
|
|
}
|
|
|
|
static int stb0899_get_dev_id(struct stb0899_state *state)
|
|
{
|
|
u8 chip_id, release;
|
|
u16 id;
|
|
u32 demod_ver = 0, fec_ver = 0;
|
|
char demod_str[5] = { 0 };
|
|
char fec_str[5] = { 0 };
|
|
|
|
id = stb0899_read_reg(state, STB0899_DEV_ID);
|
|
dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
|
|
chip_id = STB0899_GETFIELD(CHIP_ID, id);
|
|
release = STB0899_GETFIELD(CHIP_REL, id);
|
|
|
|
dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
|
|
chip_id, release);
|
|
|
|
CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
|
|
|
|
demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
|
|
dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
|
|
CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
|
|
fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
|
|
if (! (chip_id > 0)) {
|
|
dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
|
|
|
|
return -ENODEV;
|
|
}
|
|
dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void stb0899_set_delivery(struct stb0899_state *state)
|
|
{
|
|
u8 reg;
|
|
u8 stop_clk[2];
|
|
|
|
stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
|
|
stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
|
|
|
|
switch (state->delsys) {
|
|
case SYS_DVBS:
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
|
|
/* FECM/Viterbi ON */
|
|
reg = stb0899_read_reg(state, STB0899_FECM);
|
|
STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
|
|
STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
|
|
stb0899_write_reg(state, STB0899_FECM, reg);
|
|
|
|
stb0899_write_reg(state, STB0899_RSULC, 0xb1);
|
|
stb0899_write_reg(state, STB0899_TSULC, 0x40);
|
|
stb0899_write_reg(state, STB0899_RSLLC, 0x42);
|
|
stb0899_write_reg(state, STB0899_TSLPL, 0x12);
|
|
|
|
reg = stb0899_read_reg(state, STB0899_TSTRES);
|
|
STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
|
|
stb0899_write_reg(state, STB0899_TSTRES, reg);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
|
|
STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
|
|
STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
|
|
STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
|
|
STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
|
|
break;
|
|
case SYS_DVBS2:
|
|
/* FECM/Viterbi OFF */
|
|
reg = stb0899_read_reg(state, STB0899_FECM);
|
|
STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
|
|
STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
|
|
stb0899_write_reg(state, STB0899_FECM, reg);
|
|
|
|
stb0899_write_reg(state, STB0899_RSULC, 0xb1);
|
|
stb0899_write_reg(state, STB0899_TSULC, 0x42);
|
|
stb0899_write_reg(state, STB0899_RSLLC, 0x40);
|
|
stb0899_write_reg(state, STB0899_TSLPL, 0x02);
|
|
|
|
reg = stb0899_read_reg(state, STB0899_TSTRES);
|
|
STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
|
|
stb0899_write_reg(state, STB0899_TSTRES, reg);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
|
|
STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
|
|
STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
|
|
STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
|
|
STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
|
|
break;
|
|
case SYS_DSS:
|
|
/* FECM/Viterbi ON */
|
|
reg = stb0899_read_reg(state, STB0899_FECM);
|
|
STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
|
|
STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
|
|
stb0899_write_reg(state, STB0899_FECM, reg);
|
|
|
|
stb0899_write_reg(state, STB0899_RSULC, 0xa1);
|
|
stb0899_write_reg(state, STB0899_TSULC, 0x61);
|
|
stb0899_write_reg(state, STB0899_RSLLC, 0x42);
|
|
|
|
reg = stb0899_read_reg(state, STB0899_TSTRES);
|
|
STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
|
|
stb0899_write_reg(state, STB0899_TSTRES, reg);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
|
|
STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
|
|
STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
|
|
STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
|
|
|
|
STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
|
|
break;
|
|
default:
|
|
dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
|
|
break;
|
|
}
|
|
STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
|
|
stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
|
|
}
|
|
|
|
/*
|
|
* stb0899_set_iterations
|
|
* set the LDPC iteration scale function
|
|
*/
|
|
static void stb0899_set_iterations(struct stb0899_state *state)
|
|
{
|
|
struct stb0899_internal *internal = &state->internal;
|
|
struct stb0899_config *config = state->config;
|
|
|
|
s32 iter_scale;
|
|
u32 reg;
|
|
|
|
iter_scale = 17 * (internal->master_clk / 1000);
|
|
iter_scale += 410000;
|
|
iter_scale /= (internal->srate / 1000000);
|
|
iter_scale /= 1000;
|
|
|
|
if (iter_scale > config->ldpc_max_iter)
|
|
iter_scale = config->ldpc_max_iter;
|
|
|
|
reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER);
|
|
STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
|
|
stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
|
|
}
|
|
|
|
static enum dvbfe_search stb0899_search(struct dvb_frontend *fe)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
struct stb0899_params *i_params = &state->params;
|
|
struct stb0899_internal *internal = &state->internal;
|
|
struct stb0899_config *config = state->config;
|
|
struct dtv_frontend_properties *props = &fe->dtv_property_cache;
|
|
|
|
u32 SearchRange, gain;
|
|
|
|
i_params->freq = props->frequency;
|
|
i_params->srate = props->symbol_rate;
|
|
state->delsys = props->delivery_system;
|
|
dprintk(state->verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
|
|
|
|
SearchRange = 10000000;
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
|
|
/* checking Search Range is meaningless for a fixed 3 Mhz */
|
|
if (INRANGE(i_params->srate, 1000000, 45000000)) {
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Parameters IN RANGE");
|
|
stb0899_set_delivery(state);
|
|
|
|
if (state->config->tuner_set_rfsiggain) {
|
|
if (internal->srate > 15000000)
|
|
gain = 8; /* 15Mb < srate < 45Mb, gain = 8dB */
|
|
else if (internal->srate > 5000000)
|
|
gain = 12; /* 5Mb < srate < 15Mb, gain = 12dB */
|
|
else
|
|
gain = 14; /* 1Mb < srate < 5Mb, gain = 14db */
|
|
state->config->tuner_set_rfsiggain(fe, gain);
|
|
}
|
|
|
|
if (i_params->srate <= 5000000)
|
|
stb0899_set_mclk(state, config->lo_clk);
|
|
else
|
|
stb0899_set_mclk(state, config->hi_clk);
|
|
|
|
switch (state->delsys) {
|
|
case SYS_DVBS:
|
|
case SYS_DSS:
|
|
dprintk(state->verbose, FE_DEBUG, 1, "DVB-S delivery system");
|
|
internal->freq = i_params->freq;
|
|
internal->srate = i_params->srate;
|
|
/*
|
|
* search = user search range +
|
|
* 500Khz +
|
|
* 2 * Tuner_step_size +
|
|
* 10% of the symbol rate
|
|
*/
|
|
internal->srch_range = SearchRange + 1500000 + (i_params->srate / 5);
|
|
internal->derot_percent = 30;
|
|
|
|
/* What to do for tuners having no bandwidth setup ? */
|
|
/* enable tuner I/O */
|
|
stb0899_i2c_gate_ctrl(&state->frontend, 1);
|
|
|
|
if (state->config->tuner_set_bandwidth)
|
|
state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + SearchRange)) / 10);
|
|
if (state->config->tuner_get_bandwidth)
|
|
state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
|
|
|
|
/* disable tuner I/O */
|
|
stb0899_i2c_gate_ctrl(&state->frontend, 0);
|
|
|
|
/* Set DVB-S1 AGC */
|
|
stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
|
|
|
|
/* Run the search algorithm */
|
|
dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
|
|
if (stb0899_dvbs_algo(state) == RANGEOK) {
|
|
internal->lock = 1;
|
|
dprintk(state->verbose, FE_DEBUG, 1,
|
|
"-------------------------------------> DVB-S LOCK !");
|
|
|
|
// stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */
|
|
// internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
|
|
// internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
|
|
// dprintk(state->verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
|
|
// dprintk(state->verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
|
|
|
|
return DVBFE_ALGO_SEARCH_SUCCESS;
|
|
} else {
|
|
internal->lock = 0;
|
|
|
|
return DVBFE_ALGO_SEARCH_FAILED;
|
|
}
|
|
break;
|
|
case SYS_DVBS2:
|
|
internal->freq = i_params->freq;
|
|
internal->srate = i_params->srate;
|
|
internal->srch_range = SearchRange;
|
|
|
|
/* enable tuner I/O */
|
|
stb0899_i2c_gate_ctrl(&state->frontend, 1);
|
|
|
|
if (state->config->tuner_set_bandwidth)
|
|
state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + SearchRange));
|
|
if (state->config->tuner_get_bandwidth)
|
|
state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
|
|
|
|
/* disable tuner I/O */
|
|
stb0899_i2c_gate_ctrl(&state->frontend, 0);
|
|
|
|
// pParams->SpectralInv = pSearch->IQ_Inversion;
|
|
|
|
/* Set DVB-S2 AGC */
|
|
stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
|
|
|
|
/* Set IterScale =f(MCLK,SYMB) */
|
|
stb0899_set_iterations(state);
|
|
|
|
/* Run the search algorithm */
|
|
dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
|
|
if (stb0899_dvbs2_algo(state) == DVBS2_FEC_LOCK) {
|
|
internal->lock = 1;
|
|
dprintk(state->verbose, FE_DEBUG, 1,
|
|
"-------------------------------------> DVB-S2 LOCK !");
|
|
|
|
// stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */
|
|
// internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
|
|
// internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
|
|
|
|
return DVBFE_ALGO_SEARCH_SUCCESS;
|
|
} else {
|
|
internal->lock = 0;
|
|
|
|
return DVBFE_ALGO_SEARCH_FAILED;
|
|
}
|
|
break;
|
|
default:
|
|
dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
|
|
return DVBFE_ALGO_SEARCH_INVALID;
|
|
}
|
|
}
|
|
|
|
return DVBFE_ALGO_SEARCH_ERROR;
|
|
}
|
|
|
|
static int stb0899_get_frontend(struct dvb_frontend *fe,
|
|
struct dtv_frontend_properties *p)
|
|
{
|
|
struct stb0899_state *state = fe->demodulator_priv;
|
|
struct stb0899_internal *internal = &state->internal;
|
|
|
|
dprintk(state->verbose, FE_DEBUG, 1, "Get params");
|
|
p->symbol_rate = internal->srate;
|
|
p->frequency = internal->freq;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
|
|
{
|
|
return DVBFE_ALGO_CUSTOM;
|
|
}
|
|
|
|
static const struct dvb_frontend_ops stb0899_ops = {
|
|
.delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
|
|
.info = {
|
|
.name = "STB0899 Multistandard",
|
|
.frequency_min_hz = 950 * MHz,
|
|
.frequency_max_hz = 2150 * MHz,
|
|
.symbol_rate_min = 5000000,
|
|
.symbol_rate_max = 45000000,
|
|
|
|
.caps = FE_CAN_INVERSION_AUTO |
|
|
FE_CAN_FEC_AUTO |
|
|
FE_CAN_2G_MODULATION |
|
|
FE_CAN_QPSK
|
|
},
|
|
|
|
.detach = stb0899_detach,
|
|
.release = stb0899_release,
|
|
.init = stb0899_init,
|
|
.sleep = stb0899_sleep,
|
|
// .wakeup = stb0899_wakeup,
|
|
|
|
.i2c_gate_ctrl = stb0899_i2c_gate_ctrl,
|
|
|
|
.get_frontend_algo = stb0899_frontend_algo,
|
|
.search = stb0899_search,
|
|
.get_frontend = stb0899_get_frontend,
|
|
|
|
|
|
.read_status = stb0899_read_status,
|
|
.read_snr = stb0899_read_snr,
|
|
.read_signal_strength = stb0899_read_signal_strength,
|
|
.read_ber = stb0899_read_ber,
|
|
|
|
.set_voltage = stb0899_set_voltage,
|
|
.set_tone = stb0899_set_tone,
|
|
|
|
.diseqc_send_master_cmd = stb0899_send_diseqc_msg,
|
|
.diseqc_recv_slave_reply = stb0899_recv_slave_reply,
|
|
.diseqc_send_burst = stb0899_send_diseqc_burst,
|
|
};
|
|
|
|
struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
|
|
{
|
|
struct stb0899_state *state = NULL;
|
|
|
|
state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
goto error;
|
|
|
|
state->verbose = &verbose;
|
|
state->config = config;
|
|
state->i2c = i2c;
|
|
state->frontend.ops = stb0899_ops;
|
|
state->frontend.demodulator_priv = state;
|
|
/* use configured inversion as default -- we'll later autodetect inversion */
|
|
state->internal.inversion = config->inversion;
|
|
|
|
stb0899_wakeup(&state->frontend);
|
|
if (stb0899_get_dev_id(state) == -ENODEV) {
|
|
printk("%s: Exiting .. !\n", __func__);
|
|
goto error;
|
|
}
|
|
|
|
printk("%s: Attaching STB0899 \n", __func__);
|
|
return &state->frontend;
|
|
|
|
error:
|
|
kfree(state);
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL_GPL(stb0899_attach);
|
|
MODULE_PARM_DESC(verbose, "Set Verbosity level");
|
|
MODULE_AUTHOR("Manu Abraham");
|
|
MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
|
|
MODULE_LICENSE("GPL");
|