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1645 lines
44 KiB
1645 lines
44 KiB
// 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 ([email protected]) |
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|
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Copyright (C) ST Microelectronics |
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|
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*/ |
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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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|
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#include <linux/dvb/frontend.h> |
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#include <media/dvb_frontend.h> |
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|
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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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|
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static unsigned int verbose = 0;//1; |
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module_param(verbose, int, 0644); |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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/* |
|
* Bug ID 9: |
|
* access to 0xf2xx/0xf6xx |
|
* must be followed by read from 0xf2ff/0xf6ff. |
|
*/ |
|
if ((reg != 0xf2ff) && (reg != 0xf6ff) && |
|
(((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; |
|
err: |
|
return status < 0 ? status : -EREMOTEIO; |
|
} |
|
|
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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; |
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u8 buf[MAX_XFER_SIZE]; |
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struct i2c_msg i2c_msg = { |
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.addr = state->config->demod_address, |
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.flags = 0, |
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.buf = buf, |
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.len = 2 + count |
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}; |
|
|
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if (2 + count > sizeof(buf)) { |
|
printk(KERN_WARNING |
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"%s: i2c wr reg=%04x: len=%d is too big!\n", |
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KBUILD_MODNAME, reg, count); |
|
return -EINVAL; |
|
} |
|
|
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buf[0] = reg >> 8; |
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buf[1] = reg & 0xff; |
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memcpy(&buf[2], data, count); |
|
|
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dprintk(state->verbose, FE_DEBUGREG, 1, |
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"%s [0x%04x]: %*ph", __func__, reg, count, data); |
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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; |
|
} |
|
|
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int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data) |
|
{ |
|
u8 tmp = data; |
|
return stb0899_write_regs(state, reg, &tmp, 1); |
|
} |
|
|
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/* |
|
* 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(stb0899_attach); |
|
MODULE_PARM_DESC(verbose, "Set Verbosity level"); |
|
MODULE_AUTHOR("Manu Abraham"); |
|
MODULE_DESCRIPTION("STB0899 Multi-Std frontend"); |
|
MODULE_LICENSE("GPL");
|
|
|