mirror of https://gitee.com/openkylin/linux.git
1656 lines
42 KiB
C
1656 lines
42 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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Conexant cx24117/cx24132 - Dual DVBS/S2 Satellite demod/tuner driver
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Copyright (C) 2013 Luis Alves <ljalvs@gmail.com>
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July, 6th 2013
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First release based on cx24116 driver by:
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Steven Toth and Georg Acher, Darron Broad, Igor Liplianin
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Cards currently supported:
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TBS6980 - Dual DVBS/S2 PCIe card
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TBS6981 - Dual DVBS/S2 PCIe card
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*/
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#include <linux/slab.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/firmware.h>
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#include "tuner-i2c.h"
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#include <media/dvb_frontend.h>
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#include "cx24117.h"
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#define CX24117_DEFAULT_FIRMWARE "dvb-fe-cx24117.fw"
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#define CX24117_SEARCH_RANGE_KHZ 5000
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/* known registers */
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#define CX24117_REG_COMMAND (0x00) /* command buffer */
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#define CX24117_REG_EXECUTE (0x1f) /* execute command */
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#define CX24117_REG_FREQ3_0 (0x34) /* frequency */
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#define CX24117_REG_FREQ2_0 (0x35)
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#define CX24117_REG_FREQ1_0 (0x36)
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#define CX24117_REG_STATE0 (0x39)
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#define CX24117_REG_SSTATUS0 (0x3a) /* demod0 signal high / status */
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#define CX24117_REG_SIGNAL0 (0x3b)
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#define CX24117_REG_FREQ5_0 (0x3c) /* +-freq */
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#define CX24117_REG_FREQ6_0 (0x3d)
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#define CX24117_REG_SRATE2_0 (0x3e) /* +- 1000 * srate */
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#define CX24117_REG_SRATE1_0 (0x3f)
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#define CX24117_REG_QUALITY2_0 (0x40)
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#define CX24117_REG_QUALITY1_0 (0x41)
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#define CX24117_REG_BER4_0 (0x47)
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#define CX24117_REG_BER3_0 (0x48)
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#define CX24117_REG_BER2_0 (0x49)
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#define CX24117_REG_BER1_0 (0x4a)
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#define CX24117_REG_DVBS_UCB2_0 (0x4b)
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#define CX24117_REG_DVBS_UCB1_0 (0x4c)
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#define CX24117_REG_DVBS2_UCB2_0 (0x50)
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#define CX24117_REG_DVBS2_UCB1_0 (0x51)
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#define CX24117_REG_QSTATUS0 (0x93)
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#define CX24117_REG_CLKDIV0 (0xe6)
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#define CX24117_REG_RATEDIV0 (0xf0)
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#define CX24117_REG_FREQ3_1 (0x55) /* frequency */
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#define CX24117_REG_FREQ2_1 (0x56)
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#define CX24117_REG_FREQ1_1 (0x57)
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#define CX24117_REG_STATE1 (0x5a)
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#define CX24117_REG_SSTATUS1 (0x5b) /* demod1 signal high / status */
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#define CX24117_REG_SIGNAL1 (0x5c)
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#define CX24117_REG_FREQ5_1 (0x5d) /* +- freq */
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#define CX24117_REG_FREQ4_1 (0x5e)
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#define CX24117_REG_SRATE2_1 (0x5f)
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#define CX24117_REG_SRATE1_1 (0x60)
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#define CX24117_REG_QUALITY2_1 (0x61)
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#define CX24117_REG_QUALITY1_1 (0x62)
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#define CX24117_REG_BER4_1 (0x68)
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#define CX24117_REG_BER3_1 (0x69)
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#define CX24117_REG_BER2_1 (0x6a)
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#define CX24117_REG_BER1_1 (0x6b)
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#define CX24117_REG_DVBS_UCB2_1 (0x6c)
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#define CX24117_REG_DVBS_UCB1_1 (0x6d)
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#define CX24117_REG_DVBS2_UCB2_1 (0x71)
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#define CX24117_REG_DVBS2_UCB1_1 (0x72)
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#define CX24117_REG_QSTATUS1 (0x9f)
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#define CX24117_REG_CLKDIV1 (0xe7)
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#define CX24117_REG_RATEDIV1 (0xf1)
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/* arg buffer size */
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#define CX24117_ARGLEN (0x1e)
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/* rolloff */
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#define CX24117_ROLLOFF_020 (0x00)
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#define CX24117_ROLLOFF_025 (0x01)
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#define CX24117_ROLLOFF_035 (0x02)
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/* pilot bit */
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#define CX24117_PILOT_OFF (0x00)
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#define CX24117_PILOT_ON (0x40)
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#define CX24117_PILOT_AUTO (0x80)
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/* signal status */
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#define CX24117_HAS_SIGNAL (0x01)
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#define CX24117_HAS_CARRIER (0x02)
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#define CX24117_HAS_VITERBI (0x04)
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#define CX24117_HAS_SYNCLOCK (0x08)
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#define CX24117_STATUS_MASK (0x0f)
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#define CX24117_SIGNAL_MASK (0xc0)
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/* arg offset for DiSEqC */
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#define CX24117_DISEQC_DEMOD (1)
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#define CX24117_DISEQC_BURST (2)
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#define CX24117_DISEQC_ARG3_2 (3) /* unknown value=2 */
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#define CX24117_DISEQC_ARG4_0 (4) /* unknown value=0 */
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#define CX24117_DISEQC_ARG5_0 (5) /* unknown value=0 */
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#define CX24117_DISEQC_MSGLEN (6)
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#define CX24117_DISEQC_MSGOFS (7)
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/* DiSEqC burst */
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#define CX24117_DISEQC_MINI_A (0)
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#define CX24117_DISEQC_MINI_B (1)
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#define CX24117_PNE (0) /* 0 disabled / 2 enabled */
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#define CX24117_OCC (1) /* 0 disabled / 1 enabled */
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enum cmds {
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CMD_SET_VCOFREQ = 0x10,
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CMD_TUNEREQUEST = 0x11,
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CMD_GLOBAL_MPEGCFG = 0x13,
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CMD_MPEGCFG = 0x14,
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CMD_TUNERINIT = 0x15,
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CMD_GET_SRATE = 0x18,
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CMD_SET_GOLDCODE = 0x19,
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CMD_GET_AGCACC = 0x1a,
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CMD_DEMODINIT = 0x1b,
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CMD_GETCTLACC = 0x1c,
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CMD_LNBCONFIG = 0x20,
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CMD_LNBSEND = 0x21,
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CMD_LNBDCLEVEL = 0x22,
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CMD_LNBPCBCONFIG = 0x23,
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CMD_LNBSENDTONEBST = 0x24,
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CMD_LNBUPDREPLY = 0x25,
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CMD_SET_GPIOMODE = 0x30,
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CMD_SET_GPIOEN = 0x31,
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CMD_SET_GPIODIR = 0x32,
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CMD_SET_GPIOOUT = 0x33,
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CMD_ENABLERSCORR = 0x34,
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CMD_FWVERSION = 0x35,
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CMD_SET_SLEEPMODE = 0x36,
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CMD_BERCTRL = 0x3c,
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CMD_EVENTCTRL = 0x3d,
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};
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static LIST_HEAD(hybrid_tuner_instance_list);
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static DEFINE_MUTEX(cx24117_list_mutex);
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/* The Demod/Tuner can't easily provide these, we cache them */
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struct cx24117_tuning {
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u32 frequency;
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u32 symbol_rate;
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enum fe_spectral_inversion inversion;
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enum fe_code_rate fec;
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enum fe_delivery_system delsys;
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enum fe_modulation modulation;
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enum fe_pilot pilot;
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enum fe_rolloff rolloff;
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/* Demod values */
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u8 fec_val;
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u8 fec_mask;
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u8 inversion_val;
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u8 pilot_val;
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u8 rolloff_val;
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};
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/* Basic commands that are sent to the firmware */
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struct cx24117_cmd {
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u8 len;
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u8 args[CX24117_ARGLEN];
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};
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/* common to both fe's */
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struct cx24117_priv {
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u8 demod_address;
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struct i2c_adapter *i2c;
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u8 skip_fw_load;
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struct mutex fe_lock;
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/* Used for sharing this struct between demods */
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struct tuner_i2c_props i2c_props;
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struct list_head hybrid_tuner_instance_list;
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};
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/* one per each fe */
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struct cx24117_state {
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struct cx24117_priv *priv;
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struct dvb_frontend frontend;
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struct cx24117_tuning dcur;
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struct cx24117_tuning dnxt;
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struct cx24117_cmd dsec_cmd;
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int demod;
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};
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/* modfec (modulation and FEC) lookup table */
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/* Check cx24116.c for a detailed description of each field */
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static struct cx24117_modfec {
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enum fe_delivery_system delivery_system;
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enum fe_modulation modulation;
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enum fe_code_rate fec;
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u8 mask; /* In DVBS mode this is used to autodetect */
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u8 val; /* Passed to the firmware to indicate mode selection */
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} cx24117_modfec_modes[] = {
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/* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */
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/*mod fec mask val */
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{ SYS_DVBS, QPSK, FEC_NONE, 0xfe, 0x30 },
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{ SYS_DVBS, QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */
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{ SYS_DVBS, QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */
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{ SYS_DVBS, QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */
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{ SYS_DVBS, QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */
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{ SYS_DVBS, QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */
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{ SYS_DVBS, QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */
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{ SYS_DVBS, QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */
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{ SYS_DVBS, QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */
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{ SYS_DVBS, QPSK, FEC_AUTO, 0xfe, 0x30 },
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/* NBC-QPSK */
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{ SYS_DVBS2, QPSK, FEC_NONE, 0x00, 0x00 },
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{ SYS_DVBS2, QPSK, FEC_1_2, 0x00, 0x04 },
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{ SYS_DVBS2, QPSK, FEC_3_5, 0x00, 0x05 },
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{ SYS_DVBS2, QPSK, FEC_2_3, 0x00, 0x06 },
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{ SYS_DVBS2, QPSK, FEC_3_4, 0x00, 0x07 },
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{ SYS_DVBS2, QPSK, FEC_4_5, 0x00, 0x08 },
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{ SYS_DVBS2, QPSK, FEC_5_6, 0x00, 0x09 },
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{ SYS_DVBS2, QPSK, FEC_8_9, 0x00, 0x0a },
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{ SYS_DVBS2, QPSK, FEC_9_10, 0x00, 0x0b },
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{ SYS_DVBS2, QPSK, FEC_AUTO, 0x00, 0x00 },
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/* 8PSK */
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{ SYS_DVBS2, PSK_8, FEC_NONE, 0x00, 0x00 },
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{ SYS_DVBS2, PSK_8, FEC_3_5, 0x00, 0x0c },
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{ SYS_DVBS2, PSK_8, FEC_2_3, 0x00, 0x0d },
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{ SYS_DVBS2, PSK_8, FEC_3_4, 0x00, 0x0e },
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{ SYS_DVBS2, PSK_8, FEC_5_6, 0x00, 0x0f },
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{ SYS_DVBS2, PSK_8, FEC_8_9, 0x00, 0x10 },
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{ SYS_DVBS2, PSK_8, FEC_9_10, 0x00, 0x11 },
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{ SYS_DVBS2, PSK_8, FEC_AUTO, 0x00, 0x00 },
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/*
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* 'val' can be found in the FECSTATUS register when tuning.
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* FECSTATUS will give the actual FEC in use if tuning was successful.
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*/
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};
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static int cx24117_writereg(struct cx24117_state *state, u8 reg, u8 data)
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{
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u8 buf[] = { reg, data };
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struct i2c_msg msg = { .addr = state->priv->demod_address,
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.flags = 0, .buf = buf, .len = 2 };
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int ret;
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dev_dbg(&state->priv->i2c->dev,
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"%s() demod%d i2c wr @0x%02x=0x%02x\n",
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__func__, state->demod, reg, data);
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ret = i2c_transfer(state->priv->i2c, &msg, 1);
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if (ret < 0) {
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dev_warn(&state->priv->i2c->dev,
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"%s: demod%d i2c wr err(%i) @0x%02x=0x%02x\n",
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KBUILD_MODNAME, state->demod, ret, reg, data);
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return ret;
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}
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return 0;
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}
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static int cx24117_writecmd(struct cx24117_state *state,
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struct cx24117_cmd *cmd)
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{
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struct i2c_msg msg;
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u8 buf[CX24117_ARGLEN+1];
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int ret;
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dev_dbg(&state->priv->i2c->dev,
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"%s() demod%d i2c wr cmd len=%d\n",
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__func__, state->demod, cmd->len);
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buf[0] = CX24117_REG_COMMAND;
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memcpy(&buf[1], cmd->args, cmd->len);
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msg.addr = state->priv->demod_address;
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msg.flags = 0;
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msg.len = cmd->len+1;
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msg.buf = buf;
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ret = i2c_transfer(state->priv->i2c, &msg, 1);
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if (ret < 0) {
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dev_warn(&state->priv->i2c->dev,
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"%s: demod%d i2c wr cmd err(%i) len=%d\n",
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KBUILD_MODNAME, state->demod, ret, cmd->len);
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return ret;
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}
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return 0;
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}
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static int cx24117_readreg(struct cx24117_state *state, u8 reg)
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{
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int ret;
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u8 recv = 0;
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struct i2c_msg msg[] = {
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{ .addr = state->priv->demod_address, .flags = 0,
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.buf = ®, .len = 1 },
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{ .addr = state->priv->demod_address, .flags = I2C_M_RD,
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.buf = &recv, .len = 1 }
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};
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ret = i2c_transfer(state->priv->i2c, msg, 2);
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if (ret < 0) {
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dev_warn(&state->priv->i2c->dev,
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"%s: demod%d i2c rd err(%d) @0x%x\n",
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KBUILD_MODNAME, state->demod, ret, reg);
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return ret;
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}
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dev_dbg(&state->priv->i2c->dev, "%s() demod%d i2c rd @0x%02x=0x%02x\n",
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__func__, state->demod, reg, recv);
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return recv;
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}
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static int cx24117_readregN(struct cx24117_state *state,
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u8 reg, u8 *buf, int len)
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{
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int ret;
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struct i2c_msg msg[] = {
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{ .addr = state->priv->demod_address, .flags = 0,
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.buf = ®, .len = 1 },
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{ .addr = state->priv->demod_address, .flags = I2C_M_RD,
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.buf = buf, .len = len }
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};
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ret = i2c_transfer(state->priv->i2c, msg, 2);
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if (ret < 0) {
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dev_warn(&state->priv->i2c->dev,
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"%s: demod%d i2c rd err(%d) @0x%x\n",
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KBUILD_MODNAME, state->demod, ret, reg);
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return ret;
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}
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return 0;
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}
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static int cx24117_set_inversion(struct cx24117_state *state,
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enum fe_spectral_inversion inversion)
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{
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dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
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__func__, inversion, state->demod);
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switch (inversion) {
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case INVERSION_OFF:
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state->dnxt.inversion_val = 0x00;
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break;
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case INVERSION_ON:
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state->dnxt.inversion_val = 0x04;
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break;
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case INVERSION_AUTO:
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state->dnxt.inversion_val = 0x0C;
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break;
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default:
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return -EINVAL;
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}
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state->dnxt.inversion = inversion;
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return 0;
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}
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static int cx24117_lookup_fecmod(struct cx24117_state *state,
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enum fe_delivery_system d, enum fe_modulation m, enum fe_code_rate f)
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{
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int i, ret = -EINVAL;
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dev_dbg(&state->priv->i2c->dev,
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"%s(demod(0x%02x,0x%02x) demod%d\n",
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__func__, m, f, state->demod);
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for (i = 0; i < ARRAY_SIZE(cx24117_modfec_modes); i++) {
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if ((d == cx24117_modfec_modes[i].delivery_system) &&
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(m == cx24117_modfec_modes[i].modulation) &&
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(f == cx24117_modfec_modes[i].fec)) {
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ret = i;
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break;
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}
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}
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return ret;
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}
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static int cx24117_set_fec(struct cx24117_state *state,
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enum fe_delivery_system delsys,
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enum fe_modulation mod,
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enum fe_code_rate fec)
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{
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int ret;
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dev_dbg(&state->priv->i2c->dev,
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"%s(0x%02x,0x%02x) demod%d\n",
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__func__, mod, fec, state->demod);
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ret = cx24117_lookup_fecmod(state, delsys, mod, fec);
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if (ret < 0)
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return ret;
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state->dnxt.fec = fec;
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state->dnxt.fec_val = cx24117_modfec_modes[ret].val;
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state->dnxt.fec_mask = cx24117_modfec_modes[ret].mask;
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dev_dbg(&state->priv->i2c->dev,
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"%s() demod%d mask/val = 0x%02x/0x%02x\n", __func__,
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state->demod, state->dnxt.fec_mask, state->dnxt.fec_val);
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return 0;
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}
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static int cx24117_set_symbolrate(struct cx24117_state *state, u32 rate)
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{
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|
dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
|
|
__func__, rate, state->demod);
|
|
|
|
state->dnxt.symbol_rate = rate;
|
|
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d symbol_rate = %d\n",
|
|
__func__, state->demod, rate);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx24117_load_firmware(struct dvb_frontend *fe,
|
|
const struct firmware *fw);
|
|
|
|
static int cx24117_firmware_ondemand(struct dvb_frontend *fe)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
const struct firmware *fw;
|
|
int ret = 0;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d skip_fw_load=%d\n",
|
|
__func__, state->demod, state->priv->skip_fw_load);
|
|
|
|
if (state->priv->skip_fw_load)
|
|
return 0;
|
|
|
|
/* check if firmware is already running */
|
|
if (cx24117_readreg(state, 0xeb) != 0xa) {
|
|
/* Load firmware */
|
|
/* request the firmware, this will block until loaded */
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: Waiting for firmware upload (%s)...\n",
|
|
__func__, CX24117_DEFAULT_FIRMWARE);
|
|
ret = request_firmware(&fw, CX24117_DEFAULT_FIRMWARE,
|
|
state->priv->i2c->dev.parent);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: Waiting for firmware upload(2)...\n", __func__);
|
|
if (ret) {
|
|
dev_err(&state->priv->i2c->dev,
|
|
"%s: No firmware uploaded (timeout or file not found?)\n",
|
|
__func__);
|
|
return ret;
|
|
}
|
|
|
|
/* Make sure we don't recurse back through here
|
|
* during loading */
|
|
state->priv->skip_fw_load = 1;
|
|
|
|
ret = cx24117_load_firmware(fe, fw);
|
|
if (ret)
|
|
dev_err(&state->priv->i2c->dev,
|
|
"%s: Writing firmware failed\n", __func__);
|
|
release_firmware(fw);
|
|
|
|
dev_info(&state->priv->i2c->dev,
|
|
"%s: Firmware upload %s\n", __func__,
|
|
ret == 0 ? "complete" : "failed");
|
|
|
|
/* Ensure firmware is always loaded if required */
|
|
state->priv->skip_fw_load = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Take a basic firmware command structure, format it
|
|
* and forward it for processing
|
|
*/
|
|
static int cx24117_cmd_execute_nolock(struct dvb_frontend *fe,
|
|
struct cx24117_cmd *cmd)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
int i, ret;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
|
|
__func__, state->demod);
|
|
|
|
/* Load the firmware if required */
|
|
ret = cx24117_firmware_ondemand(fe);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
/* Write the command */
|
|
cx24117_writecmd(state, cmd);
|
|
|
|
/* Start execution and wait for cmd to terminate */
|
|
cx24117_writereg(state, CX24117_REG_EXECUTE, 0x01);
|
|
i = 0;
|
|
while (cx24117_readreg(state, CX24117_REG_EXECUTE)) {
|
|
msleep(20);
|
|
if (i++ > 40) {
|
|
/* Avoid looping forever if the firmware does
|
|
not respond */
|
|
dev_warn(&state->priv->i2c->dev,
|
|
"%s() Firmware not responding\n", __func__);
|
|
return -EIO;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int cx24117_cmd_execute(struct dvb_frontend *fe, struct cx24117_cmd *cmd)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
|
|
mutex_lock(&state->priv->fe_lock);
|
|
ret = cx24117_cmd_execute_nolock(fe, cmd);
|
|
mutex_unlock(&state->priv->fe_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int cx24117_load_firmware(struct dvb_frontend *fe,
|
|
const struct firmware *fw)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
struct cx24117_cmd cmd;
|
|
int i, ret;
|
|
unsigned char vers[4];
|
|
|
|
struct i2c_msg msg;
|
|
u8 *buf;
|
|
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d FW is %zu bytes (%02x %02x .. %02x %02x)\n",
|
|
__func__, state->demod, fw->size, fw->data[0], fw->data[1],
|
|
fw->data[fw->size - 2], fw->data[fw->size - 1]);
|
|
|
|
cx24117_writereg(state, 0xea, 0x00);
|
|
cx24117_writereg(state, 0xea, 0x01);
|
|
cx24117_writereg(state, 0xea, 0x00);
|
|
|
|
cx24117_writereg(state, 0xce, 0x92);
|
|
|
|
cx24117_writereg(state, 0xfb, 0x00);
|
|
cx24117_writereg(state, 0xfc, 0x00);
|
|
|
|
cx24117_writereg(state, 0xc3, 0x04);
|
|
cx24117_writereg(state, 0xc4, 0x04);
|
|
|
|
cx24117_writereg(state, 0xce, 0x00);
|
|
cx24117_writereg(state, 0xcf, 0x00);
|
|
|
|
cx24117_writereg(state, 0xea, 0x00);
|
|
cx24117_writereg(state, 0xeb, 0x0c);
|
|
cx24117_writereg(state, 0xec, 0x06);
|
|
cx24117_writereg(state, 0xed, 0x05);
|
|
cx24117_writereg(state, 0xee, 0x03);
|
|
cx24117_writereg(state, 0xef, 0x05);
|
|
|
|
cx24117_writereg(state, 0xf3, 0x03);
|
|
cx24117_writereg(state, 0xf4, 0x44);
|
|
|
|
cx24117_writereg(state, CX24117_REG_RATEDIV0, 0x04);
|
|
cx24117_writereg(state, CX24117_REG_CLKDIV0, 0x02);
|
|
|
|
cx24117_writereg(state, CX24117_REG_RATEDIV1, 0x04);
|
|
cx24117_writereg(state, CX24117_REG_CLKDIV1, 0x02);
|
|
|
|
cx24117_writereg(state, 0xf2, 0x04);
|
|
cx24117_writereg(state, 0xe8, 0x02);
|
|
cx24117_writereg(state, 0xea, 0x01);
|
|
cx24117_writereg(state, 0xc8, 0x00);
|
|
cx24117_writereg(state, 0xc9, 0x00);
|
|
cx24117_writereg(state, 0xca, 0x00);
|
|
cx24117_writereg(state, 0xcb, 0x00);
|
|
cx24117_writereg(state, 0xcc, 0x00);
|
|
cx24117_writereg(state, 0xcd, 0x00);
|
|
cx24117_writereg(state, 0xe4, 0x03);
|
|
cx24117_writereg(state, 0xeb, 0x0a);
|
|
|
|
cx24117_writereg(state, 0xfb, 0x00);
|
|
cx24117_writereg(state, 0xe0, 0x76);
|
|
cx24117_writereg(state, 0xf7, 0x81);
|
|
cx24117_writereg(state, 0xf8, 0x00);
|
|
cx24117_writereg(state, 0xf9, 0x00);
|
|
|
|
buf = kmalloc(fw->size + 1, GFP_KERNEL);
|
|
if (buf == NULL) {
|
|
state->priv->skip_fw_load = 0;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* fw upload reg */
|
|
buf[0] = 0xfa;
|
|
memcpy(&buf[1], fw->data, fw->size);
|
|
|
|
/* prepare i2c message to send */
|
|
msg.addr = state->priv->demod_address;
|
|
msg.flags = 0;
|
|
msg.len = fw->size + 1;
|
|
msg.buf = buf;
|
|
|
|
/* send fw */
|
|
ret = i2c_transfer(state->priv->i2c, &msg, 1);
|
|
if (ret < 0) {
|
|
kfree(buf);
|
|
return ret;
|
|
}
|
|
|
|
kfree(buf);
|
|
|
|
cx24117_writereg(state, 0xf7, 0x0c);
|
|
cx24117_writereg(state, 0xe0, 0x00);
|
|
|
|
/* Init demodulator */
|
|
cmd.args[0] = CMD_DEMODINIT;
|
|
cmd.args[1] = 0x00;
|
|
cmd.args[2] = 0x01;
|
|
cmd.args[3] = 0x00;
|
|
cmd.len = 4;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto error;
|
|
|
|
/* Set VCO frequency */
|
|
cmd.args[0] = CMD_SET_VCOFREQ;
|
|
cmd.args[1] = 0x06;
|
|
cmd.args[2] = 0x2b;
|
|
cmd.args[3] = 0xd8;
|
|
cmd.args[4] = 0xa5;
|
|
cmd.args[5] = 0xee;
|
|
cmd.args[6] = 0x03;
|
|
cmd.args[7] = 0x9d;
|
|
cmd.args[8] = 0xfc;
|
|
cmd.args[9] = 0x06;
|
|
cmd.args[10] = 0x02;
|
|
cmd.args[11] = 0x9d;
|
|
cmd.args[12] = 0xfc;
|
|
cmd.len = 13;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto error;
|
|
|
|
/* Tuner init */
|
|
cmd.args[0] = CMD_TUNERINIT;
|
|
cmd.args[1] = 0x00;
|
|
cmd.args[2] = 0x01;
|
|
cmd.args[3] = 0x00;
|
|
cmd.args[4] = 0x00;
|
|
cmd.args[5] = 0x01;
|
|
cmd.args[6] = 0x01;
|
|
cmd.args[7] = 0x01;
|
|
cmd.args[8] = 0x00;
|
|
cmd.args[9] = 0x05;
|
|
cmd.args[10] = 0x02;
|
|
cmd.args[11] = 0x02;
|
|
cmd.args[12] = 0x00;
|
|
cmd.len = 13;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto error;
|
|
|
|
/* Global MPEG config */
|
|
cmd.args[0] = CMD_GLOBAL_MPEGCFG;
|
|
cmd.args[1] = 0x00;
|
|
cmd.args[2] = 0x00;
|
|
cmd.args[3] = 0x00;
|
|
cmd.args[4] = 0x01;
|
|
cmd.args[5] = 0x00;
|
|
cmd.len = 6;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto error;
|
|
|
|
/* MPEG config for each demod */
|
|
for (i = 0; i < 2; i++) {
|
|
cmd.args[0] = CMD_MPEGCFG;
|
|
cmd.args[1] = (u8) i;
|
|
cmd.args[2] = 0x00;
|
|
cmd.args[3] = 0x05;
|
|
cmd.args[4] = 0x00;
|
|
cmd.args[5] = 0x00;
|
|
cmd.args[6] = 0x55;
|
|
cmd.args[7] = 0x00;
|
|
cmd.len = 8;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto error;
|
|
}
|
|
|
|
cx24117_writereg(state, 0xce, 0xc0);
|
|
cx24117_writereg(state, 0xcf, 0x00);
|
|
cx24117_writereg(state, 0xe5, 0x04);
|
|
|
|
/* Get firmware version */
|
|
cmd.args[0] = CMD_FWVERSION;
|
|
cmd.len = 2;
|
|
for (i = 0; i < 4; i++) {
|
|
cmd.args[1] = i;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto error;
|
|
vers[i] = cx24117_readreg(state, 0x33);
|
|
}
|
|
dev_info(&state->priv->i2c->dev,
|
|
"%s: FW version %i.%i.%i.%i\n", __func__,
|
|
vers[0], vers[1], vers[2], vers[3]);
|
|
return 0;
|
|
error:
|
|
state->priv->skip_fw_load = 0;
|
|
dev_err(&state->priv->i2c->dev, "%s() Error running FW.\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
static int cx24117_read_status(struct dvb_frontend *fe, enum fe_status *status)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
int lock;
|
|
|
|
lock = cx24117_readreg(state,
|
|
(state->demod == 0) ? CX24117_REG_SSTATUS0 :
|
|
CX24117_REG_SSTATUS1) &
|
|
CX24117_STATUS_MASK;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d status = 0x%02x\n",
|
|
__func__, state->demod, lock);
|
|
|
|
*status = 0;
|
|
|
|
if (lock & CX24117_HAS_SIGNAL)
|
|
*status |= FE_HAS_SIGNAL;
|
|
if (lock & CX24117_HAS_CARRIER)
|
|
*status |= FE_HAS_CARRIER;
|
|
if (lock & CX24117_HAS_VITERBI)
|
|
*status |= FE_HAS_VITERBI;
|
|
if (lock & CX24117_HAS_SYNCLOCK)
|
|
*status |= FE_HAS_SYNC | FE_HAS_LOCK;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx24117_read_ber(struct dvb_frontend *fe, u32 *ber)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
u8 buf[4];
|
|
u8 base_reg = (state->demod == 0) ?
|
|
CX24117_REG_BER4_0 :
|
|
CX24117_REG_BER4_1;
|
|
|
|
ret = cx24117_readregN(state, base_reg, buf, 4);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
*ber = (buf[0] << 24) | (buf[1] << 16) |
|
|
(buf[1] << 8) | buf[0];
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d ber=0x%04x\n",
|
|
__func__, state->demod, *ber);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx24117_read_signal_strength(struct dvb_frontend *fe,
|
|
u16 *signal_strength)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
struct cx24117_cmd cmd;
|
|
int ret;
|
|
u16 sig_reading;
|
|
u8 buf[2];
|
|
u8 reg = (state->demod == 0) ?
|
|
CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1;
|
|
|
|
/* Read AGC accumulator register */
|
|
cmd.args[0] = CMD_GET_AGCACC;
|
|
cmd.args[1] = (u8) state->demod;
|
|
cmd.len = 2;
|
|
ret = cx24117_cmd_execute(fe, &cmd);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
ret = cx24117_readregN(state, reg, buf, 2);
|
|
if (ret != 0)
|
|
return ret;
|
|
sig_reading = ((buf[0] & CX24117_SIGNAL_MASK) << 2) | buf[1];
|
|
|
|
*signal_strength = -100 * sig_reading + 94324;
|
|
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d raw / cooked = 0x%04x / 0x%04x\n",
|
|
__func__, state->demod, sig_reading, *signal_strength);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx24117_read_snr(struct dvb_frontend *fe, u16 *snr)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
int ret;
|
|
u8 buf[2];
|
|
u8 reg = (state->demod == 0) ?
|
|
CX24117_REG_QUALITY2_0 : CX24117_REG_QUALITY2_1;
|
|
|
|
ret = cx24117_readregN(state, reg, buf, 2);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
*snr = (buf[0] << 8) | buf[1];
|
|
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d snr = 0x%04x\n",
|
|
__func__, state->demod, *snr);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int cx24117_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
enum fe_delivery_system delsys = fe->dtv_property_cache.delivery_system;
|
|
int ret;
|
|
u8 buf[2];
|
|
u8 reg = (state->demod == 0) ?
|
|
CX24117_REG_DVBS_UCB2_0 :
|
|
CX24117_REG_DVBS_UCB2_1;
|
|
|
|
switch (delsys) {
|
|
case SYS_DVBS:
|
|
break;
|
|
case SYS_DVBS2:
|
|
reg += (CX24117_REG_DVBS2_UCB2_0 - CX24117_REG_DVBS_UCB2_0);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = cx24117_readregN(state, reg, buf, 2);
|
|
if (ret != 0)
|
|
return ret;
|
|
*ucblocks = (buf[0] << 8) | buf[1];
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d ucb=0x%04x\n",
|
|
__func__, state->demod, *ucblocks);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Overwrite the current tuning params, we are about to tune */
|
|
static void cx24117_clone_params(struct dvb_frontend *fe)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
state->dcur = state->dnxt;
|
|
}
|
|
|
|
/* Wait for LNB */
|
|
static int cx24117_wait_for_lnb(struct dvb_frontend *fe)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
int i;
|
|
u8 val, reg = (state->demod == 0) ? CX24117_REG_QSTATUS0 :
|
|
CX24117_REG_QSTATUS1;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d qstatus = 0x%02x\n",
|
|
__func__, state->demod, cx24117_readreg(state, reg));
|
|
|
|
/* Wait for up to 300 ms */
|
|
for (i = 0; i < 10; i++) {
|
|
val = cx24117_readreg(state, reg) & 0x01;
|
|
if (val != 0)
|
|
return 0;
|
|
msleep(30);
|
|
}
|
|
|
|
dev_warn(&state->priv->i2c->dev, "%s: demod%d LNB not ready\n",
|
|
KBUILD_MODNAME, state->demod);
|
|
|
|
return -ETIMEDOUT; /* -EBUSY ? */
|
|
}
|
|
|
|
static int cx24117_set_voltage(struct dvb_frontend *fe,
|
|
enum fe_sec_voltage voltage)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
struct cx24117_cmd cmd;
|
|
int ret;
|
|
u8 reg = (state->demod == 0) ? 0x10 : 0x20;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d %s\n",
|
|
__func__, state->demod,
|
|
voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
|
|
voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" :
|
|
"SEC_VOLTAGE_OFF");
|
|
|
|
/* Prepare a set GPIO logic level CMD */
|
|
cmd.args[0] = CMD_SET_GPIOOUT;
|
|
cmd.args[2] = reg; /* mask */
|
|
cmd.len = 3;
|
|
|
|
if ((voltage == SEC_VOLTAGE_13) ||
|
|
(voltage == SEC_VOLTAGE_18)) {
|
|
/* power on LNB */
|
|
cmd.args[1] = reg;
|
|
ret = cx24117_cmd_execute(fe, &cmd);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
ret = cx24117_wait_for_lnb(fe);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
/* Wait for voltage/min repeat delay */
|
|
msleep(100);
|
|
|
|
/* Set 13V/18V select pin */
|
|
cmd.args[0] = CMD_LNBDCLEVEL;
|
|
cmd.args[1] = state->demod ? 0 : 1;
|
|
cmd.args[2] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00);
|
|
cmd.len = 3;
|
|
ret = cx24117_cmd_execute(fe, &cmd);
|
|
|
|
/* Min delay time before DiSEqC send */
|
|
msleep(20);
|
|
} else {
|
|
/* power off LNB */
|
|
cmd.args[1] = 0x00;
|
|
ret = cx24117_cmd_execute(fe, &cmd);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int cx24117_set_tone(struct dvb_frontend *fe,
|
|
enum fe_sec_tone_mode tone)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
struct cx24117_cmd cmd;
|
|
int ret;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
|
|
__func__, state->demod, tone);
|
|
if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) {
|
|
dev_warn(&state->priv->i2c->dev, "%s: demod%d invalid tone=%d\n",
|
|
KBUILD_MODNAME, state->demod, tone);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Wait for LNB ready */
|
|
ret = cx24117_wait_for_lnb(fe);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
/* Min delay time after DiSEqC send */
|
|
msleep(20);
|
|
|
|
/* Set the tone */
|
|
cmd.args[0] = CMD_LNBPCBCONFIG;
|
|
cmd.args[1] = (state->demod ? 0 : 1);
|
|
cmd.args[2] = 0x00;
|
|
cmd.args[3] = 0x00;
|
|
cmd.len = 5;
|
|
switch (tone) {
|
|
case SEC_TONE_ON:
|
|
cmd.args[4] = 0x01;
|
|
break;
|
|
case SEC_TONE_OFF:
|
|
cmd.args[4] = 0x00;
|
|
break;
|
|
}
|
|
|
|
msleep(20);
|
|
|
|
return cx24117_cmd_execute(fe, &cmd);
|
|
}
|
|
|
|
/* Initialise DiSEqC */
|
|
static int cx24117_diseqc_init(struct dvb_frontend *fe)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
|
|
/* Prepare a DiSEqC command */
|
|
state->dsec_cmd.args[0] = CMD_LNBSEND;
|
|
|
|
/* demod */
|
|
state->dsec_cmd.args[CX24117_DISEQC_DEMOD] = state->demod ? 0 : 1;
|
|
|
|
/* DiSEqC burst */
|
|
state->dsec_cmd.args[CX24117_DISEQC_BURST] = CX24117_DISEQC_MINI_A;
|
|
|
|
/* Unknown */
|
|
state->dsec_cmd.args[CX24117_DISEQC_ARG3_2] = 0x02;
|
|
state->dsec_cmd.args[CX24117_DISEQC_ARG4_0] = 0x00;
|
|
|
|
/* Continuation flag? */
|
|
state->dsec_cmd.args[CX24117_DISEQC_ARG5_0] = 0x00;
|
|
|
|
/* DiSEqC message length */
|
|
state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = 0x00;
|
|
|
|
/* Command length */
|
|
state->dsec_cmd.len = 7;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Send DiSEqC message */
|
|
static int cx24117_send_diseqc_msg(struct dvb_frontend *fe,
|
|
struct dvb_diseqc_master_cmd *d)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
int i, ret;
|
|
|
|
/* Dump DiSEqC message */
|
|
dev_dbg(&state->priv->i2c->dev, "%s: demod %d (",
|
|
__func__, state->demod);
|
|
for (i = 0; i < d->msg_len; i++)
|
|
dev_dbg(&state->priv->i2c->dev, "0x%02x ", d->msg[i]);
|
|
dev_dbg(&state->priv->i2c->dev, ")\n");
|
|
|
|
/* Validate length */
|
|
if (d->msg_len > sizeof(d->msg))
|
|
return -EINVAL;
|
|
|
|
/* DiSEqC message */
|
|
for (i = 0; i < d->msg_len; i++)
|
|
state->dsec_cmd.args[CX24117_DISEQC_MSGOFS + i] = d->msg[i];
|
|
|
|
/* DiSEqC message length */
|
|
state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = d->msg_len;
|
|
|
|
/* Command length */
|
|
state->dsec_cmd.len = CX24117_DISEQC_MSGOFS +
|
|
state->dsec_cmd.args[CX24117_DISEQC_MSGLEN];
|
|
|
|
/*
|
|
* Message is sent with derived else cached burst
|
|
*
|
|
* WRITE PORT GROUP COMMAND 38
|
|
*
|
|
* 0/A/A: E0 10 38 F0..F3
|
|
* 1/B/B: E0 10 38 F4..F7
|
|
* 2/C/A: E0 10 38 F8..FB
|
|
* 3/D/B: E0 10 38 FC..FF
|
|
*
|
|
* databyte[3]= 8421:8421
|
|
* ABCD:WXYZ
|
|
* CLR :SET
|
|
*
|
|
* WX= PORT SELECT 0..3 (X=TONEBURST)
|
|
* Y = VOLTAGE (0=13V, 1=18V)
|
|
* Z = BAND (0=LOW, 1=HIGH(22K))
|
|
*/
|
|
if (d->msg_len >= 4 && d->msg[2] == 0x38)
|
|
state->dsec_cmd.args[CX24117_DISEQC_BURST] =
|
|
((d->msg[3] & 4) >> 2);
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d burst=%d\n",
|
|
__func__, state->demod,
|
|
state->dsec_cmd.args[CX24117_DISEQC_BURST]);
|
|
|
|
/* Wait for LNB ready */
|
|
ret = cx24117_wait_for_lnb(fe);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
/* Wait for voltage/min repeat delay */
|
|
msleep(100);
|
|
|
|
/* Command */
|
|
ret = cx24117_cmd_execute(fe, &state->dsec_cmd);
|
|
if (ret != 0)
|
|
return ret;
|
|
/*
|
|
* Wait for send
|
|
*
|
|
* Eutelsat spec:
|
|
* >15ms delay + (XXX determine if FW does this, see set_tone)
|
|
* 13.5ms per byte +
|
|
* >15ms delay +
|
|
* 12.5ms burst +
|
|
* >15ms delay (XXX determine if FW does this, see set_tone)
|
|
*/
|
|
msleep((state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] << 4) + 60);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Send DiSEqC burst */
|
|
static int cx24117_diseqc_send_burst(struct dvb_frontend *fe,
|
|
enum fe_sec_mini_cmd burst)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s(%d) demod=%d\n",
|
|
__func__, burst, state->demod);
|
|
|
|
/* DiSEqC burst */
|
|
if (burst == SEC_MINI_A)
|
|
state->dsec_cmd.args[CX24117_DISEQC_BURST] =
|
|
CX24117_DISEQC_MINI_A;
|
|
else if (burst == SEC_MINI_B)
|
|
state->dsec_cmd.args[CX24117_DISEQC_BURST] =
|
|
CX24117_DISEQC_MINI_B;
|
|
else
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx24117_get_priv(struct cx24117_priv **priv,
|
|
struct i2c_adapter *i2c, u8 client_address)
|
|
{
|
|
int ret;
|
|
|
|
mutex_lock(&cx24117_list_mutex);
|
|
ret = hybrid_tuner_request_state(struct cx24117_priv, (*priv),
|
|
hybrid_tuner_instance_list, i2c, client_address, "cx24117");
|
|
mutex_unlock(&cx24117_list_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void cx24117_release_priv(struct cx24117_priv *priv)
|
|
{
|
|
mutex_lock(&cx24117_list_mutex);
|
|
if (priv != NULL)
|
|
hybrid_tuner_release_state(priv);
|
|
mutex_unlock(&cx24117_list_mutex);
|
|
}
|
|
|
|
static void cx24117_release(struct dvb_frontend *fe)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
dev_dbg(&state->priv->i2c->dev, "%s demod%d\n",
|
|
__func__, state->demod);
|
|
cx24117_release_priv(state->priv);
|
|
kfree(state);
|
|
}
|
|
|
|
static const struct dvb_frontend_ops cx24117_ops;
|
|
|
|
struct dvb_frontend *cx24117_attach(const struct cx24117_config *config,
|
|
struct i2c_adapter *i2c)
|
|
{
|
|
struct cx24117_state *state = NULL;
|
|
struct cx24117_priv *priv = NULL;
|
|
int demod = 0;
|
|
|
|
/* get the common data struct for both demods */
|
|
demod = cx24117_get_priv(&priv, i2c, config->demod_address);
|
|
|
|
switch (demod) {
|
|
case 0:
|
|
dev_err(&i2c->dev,
|
|
"%s: Error attaching frontend %d\n",
|
|
KBUILD_MODNAME, demod);
|
|
goto error1;
|
|
break;
|
|
case 1:
|
|
/* new priv instance */
|
|
priv->i2c = i2c;
|
|
priv->demod_address = config->demod_address;
|
|
mutex_init(&priv->fe_lock);
|
|
break;
|
|
default:
|
|
/* existing priv instance */
|
|
break;
|
|
}
|
|
|
|
/* allocate memory for the internal state */
|
|
state = kzalloc(sizeof(struct cx24117_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
goto error2;
|
|
|
|
state->demod = demod - 1;
|
|
state->priv = priv;
|
|
|
|
dev_info(&state->priv->i2c->dev,
|
|
"%s: Attaching frontend %d\n",
|
|
KBUILD_MODNAME, state->demod);
|
|
|
|
/* create dvb_frontend */
|
|
memcpy(&state->frontend.ops, &cx24117_ops,
|
|
sizeof(struct dvb_frontend_ops));
|
|
state->frontend.demodulator_priv = state;
|
|
return &state->frontend;
|
|
|
|
error2:
|
|
cx24117_release_priv(priv);
|
|
error1:
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cx24117_attach);
|
|
|
|
/*
|
|
* Initialise or wake up device
|
|
*
|
|
* Power config will reset and load initial firmware if required
|
|
*/
|
|
static int cx24117_initfe(struct dvb_frontend *fe)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
struct cx24117_cmd cmd;
|
|
int ret;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
|
|
__func__, state->demod);
|
|
|
|
mutex_lock(&state->priv->fe_lock);
|
|
|
|
/* Set sleep mode off */
|
|
cmd.args[0] = CMD_SET_SLEEPMODE;
|
|
cmd.args[1] = (state->demod ? 1 : 0);
|
|
cmd.args[2] = 0;
|
|
cmd.len = 3;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto exit;
|
|
|
|
ret = cx24117_diseqc_init(fe);
|
|
if (ret != 0)
|
|
goto exit;
|
|
|
|
/* Set BER control */
|
|
cmd.args[0] = CMD_BERCTRL;
|
|
cmd.args[1] = (state->demod ? 1 : 0);
|
|
cmd.args[2] = 0x10;
|
|
cmd.args[3] = 0x10;
|
|
cmd.len = 4;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto exit;
|
|
|
|
/* Set RS correction (enable/disable) */
|
|
cmd.args[0] = CMD_ENABLERSCORR;
|
|
cmd.args[1] = (state->demod ? 1 : 0);
|
|
cmd.args[2] = CX24117_OCC;
|
|
cmd.len = 3;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
if (ret != 0)
|
|
goto exit;
|
|
|
|
/* Set GPIO direction */
|
|
/* Set as output - controls LNB power on/off */
|
|
cmd.args[0] = CMD_SET_GPIODIR;
|
|
cmd.args[1] = 0x30;
|
|
cmd.args[2] = 0x30;
|
|
cmd.len = 3;
|
|
ret = cx24117_cmd_execute_nolock(fe, &cmd);
|
|
|
|
exit:
|
|
mutex_unlock(&state->priv->fe_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Put device to sleep
|
|
*/
|
|
static int cx24117_sleep(struct dvb_frontend *fe)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
struct cx24117_cmd cmd;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
|
|
__func__, state->demod);
|
|
|
|
/* Set sleep mode on */
|
|
cmd.args[0] = CMD_SET_SLEEPMODE;
|
|
cmd.args[1] = (state->demod ? 1 : 0);
|
|
cmd.args[2] = 1;
|
|
cmd.len = 3;
|
|
return cx24117_cmd_execute(fe, &cmd);
|
|
}
|
|
|
|
/* dvb-core told us to tune, the tv property cache will be complete,
|
|
* it's safe for is to pull values and use them for tuning purposes.
|
|
*/
|
|
static int cx24117_set_frontend(struct dvb_frontend *fe)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
|
struct cx24117_cmd cmd;
|
|
enum fe_status tunerstat;
|
|
int i, status, ret, retune = 1;
|
|
u8 reg_clkdiv, reg_ratediv;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
|
|
__func__, state->demod);
|
|
|
|
switch (c->delivery_system) {
|
|
case SYS_DVBS:
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S\n",
|
|
__func__, state->demod);
|
|
|
|
/* Only QPSK is supported for DVB-S */
|
|
if (c->modulation != QPSK) {
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d unsupported modulation (%d)\n",
|
|
__func__, state->demod, c->modulation);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Pilot doesn't exist in DVB-S, turn bit off */
|
|
state->dnxt.pilot_val = CX24117_PILOT_OFF;
|
|
|
|
/* DVB-S only supports 0.35 */
|
|
state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
|
|
break;
|
|
|
|
case SYS_DVBS2:
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S2\n",
|
|
__func__, state->demod);
|
|
|
|
/*
|
|
* NBC 8PSK/QPSK with DVB-S is supported for DVB-S2,
|
|
* but not hardware auto detection
|
|
*/
|
|
if (c->modulation != PSK_8 && c->modulation != QPSK) {
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d unsupported modulation (%d)\n",
|
|
__func__, state->demod, c->modulation);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
switch (c->pilot) {
|
|
case PILOT_AUTO:
|
|
state->dnxt.pilot_val = CX24117_PILOT_AUTO;
|
|
break;
|
|
case PILOT_OFF:
|
|
state->dnxt.pilot_val = CX24117_PILOT_OFF;
|
|
break;
|
|
case PILOT_ON:
|
|
state->dnxt.pilot_val = CX24117_PILOT_ON;
|
|
break;
|
|
default:
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d unsupported pilot mode (%d)\n",
|
|
__func__, state->demod, c->pilot);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
switch (c->rolloff) {
|
|
case ROLLOFF_20:
|
|
state->dnxt.rolloff_val = CX24117_ROLLOFF_020;
|
|
break;
|
|
case ROLLOFF_25:
|
|
state->dnxt.rolloff_val = CX24117_ROLLOFF_025;
|
|
break;
|
|
case ROLLOFF_35:
|
|
state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
|
|
break;
|
|
case ROLLOFF_AUTO:
|
|
state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
|
|
/* soft-auto rolloff */
|
|
retune = 3;
|
|
break;
|
|
default:
|
|
dev_warn(&state->priv->i2c->dev,
|
|
"%s: demod%d unsupported rolloff (%d)\n",
|
|
KBUILD_MODNAME, state->demod, c->rolloff);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
dev_warn(&state->priv->i2c->dev,
|
|
"%s: demod %d unsupported delivery system (%d)\n",
|
|
KBUILD_MODNAME, state->demod, c->delivery_system);
|
|
return -EINVAL;
|
|
}
|
|
|
|
state->dnxt.delsys = c->delivery_system;
|
|
state->dnxt.modulation = c->modulation;
|
|
state->dnxt.frequency = c->frequency;
|
|
state->dnxt.pilot = c->pilot;
|
|
state->dnxt.rolloff = c->rolloff;
|
|
|
|
ret = cx24117_set_inversion(state, c->inversion);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
ret = cx24117_set_fec(state,
|
|
c->delivery_system, c->modulation, c->fec_inner);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
ret = cx24117_set_symbolrate(state, c->symbol_rate);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
/* discard the 'current' tuning parameters and prepare to tune */
|
|
cx24117_clone_params(fe);
|
|
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: delsys = %d\n", __func__, state->dcur.delsys);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: modulation = %d\n", __func__, state->dcur.modulation);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: frequency = %d\n", __func__, state->dcur.frequency);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: pilot = %d (val = 0x%02x)\n", __func__,
|
|
state->dcur.pilot, state->dcur.pilot_val);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: retune = %d\n", __func__, retune);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: rolloff = %d (val = 0x%02x)\n", __func__,
|
|
state->dcur.rolloff, state->dcur.rolloff_val);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__,
|
|
state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val);
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s: Inversion = %d (val = 0x%02x)\n", __func__,
|
|
state->dcur.inversion, state->dcur.inversion_val);
|
|
|
|
/* Prepare a tune request */
|
|
cmd.args[0] = CMD_TUNEREQUEST;
|
|
|
|
/* demod */
|
|
cmd.args[1] = state->demod;
|
|
|
|
/* Frequency */
|
|
cmd.args[2] = (state->dcur.frequency & 0xff0000) >> 16;
|
|
cmd.args[3] = (state->dcur.frequency & 0x00ff00) >> 8;
|
|
cmd.args[4] = (state->dcur.frequency & 0x0000ff);
|
|
|
|
/* Symbol Rate */
|
|
cmd.args[5] = ((state->dcur.symbol_rate / 1000) & 0xff00) >> 8;
|
|
cmd.args[6] = ((state->dcur.symbol_rate / 1000) & 0x00ff);
|
|
|
|
/* Automatic Inversion */
|
|
cmd.args[7] = state->dcur.inversion_val;
|
|
|
|
/* Modulation / FEC / Pilot */
|
|
cmd.args[8] = state->dcur.fec_val | state->dcur.pilot_val;
|
|
|
|
cmd.args[9] = CX24117_SEARCH_RANGE_KHZ >> 8;
|
|
cmd.args[10] = CX24117_SEARCH_RANGE_KHZ & 0xff;
|
|
|
|
cmd.args[11] = state->dcur.rolloff_val;
|
|
cmd.args[12] = state->dcur.fec_mask;
|
|
|
|
if (state->dcur.symbol_rate > 30000000) {
|
|
reg_ratediv = 0x04;
|
|
reg_clkdiv = 0x02;
|
|
} else if (state->dcur.symbol_rate > 10000000) {
|
|
reg_ratediv = 0x06;
|
|
reg_clkdiv = 0x03;
|
|
} else {
|
|
reg_ratediv = 0x0a;
|
|
reg_clkdiv = 0x05;
|
|
}
|
|
|
|
cmd.args[13] = reg_ratediv;
|
|
cmd.args[14] = reg_clkdiv;
|
|
|
|
cx24117_writereg(state, (state->demod == 0) ?
|
|
CX24117_REG_CLKDIV0 : CX24117_REG_CLKDIV1, reg_clkdiv);
|
|
cx24117_writereg(state, (state->demod == 0) ?
|
|
CX24117_REG_RATEDIV0 : CX24117_REG_RATEDIV1, reg_ratediv);
|
|
|
|
cmd.args[15] = CX24117_PNE;
|
|
cmd.len = 16;
|
|
|
|
do {
|
|
/* Reset status register */
|
|
status = cx24117_readreg(state, (state->demod == 0) ?
|
|
CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1) &
|
|
CX24117_SIGNAL_MASK;
|
|
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d status_setfe = %02x\n",
|
|
__func__, state->demod, status);
|
|
|
|
cx24117_writereg(state, (state->demod == 0) ?
|
|
CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1, status);
|
|
|
|
/* Tune */
|
|
ret = cx24117_cmd_execute(fe, &cmd);
|
|
if (ret != 0)
|
|
break;
|
|
|
|
/*
|
|
* Wait for up to 500 ms before retrying
|
|
*
|
|
* If we are able to tune then generally it occurs within 100ms.
|
|
* If it takes longer, try a different rolloff setting.
|
|
*/
|
|
for (i = 0; i < 50; i++) {
|
|
cx24117_read_status(fe, &tunerstat);
|
|
status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC);
|
|
if (status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) {
|
|
dev_dbg(&state->priv->i2c->dev,
|
|
"%s() demod%d tuned\n",
|
|
__func__, state->demod);
|
|
return 0;
|
|
}
|
|
msleep(20);
|
|
}
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d not tuned\n",
|
|
__func__, state->demod);
|
|
|
|
/* try next rolloff value */
|
|
if (state->dcur.rolloff == 3)
|
|
cmd.args[11]--;
|
|
|
|
} while (--retune);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int cx24117_tune(struct dvb_frontend *fe, bool re_tune,
|
|
unsigned int mode_flags, unsigned int *delay, enum fe_status *status)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
|
|
dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
|
|
__func__, state->demod);
|
|
|
|
*delay = HZ / 5;
|
|
if (re_tune) {
|
|
int ret = cx24117_set_frontend(fe);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
return cx24117_read_status(fe, status);
|
|
}
|
|
|
|
static enum dvbfe_algo cx24117_get_algo(struct dvb_frontend *fe)
|
|
{
|
|
return DVBFE_ALGO_HW;
|
|
}
|
|
|
|
static int cx24117_get_frontend(struct dvb_frontend *fe,
|
|
struct dtv_frontend_properties *c)
|
|
{
|
|
struct cx24117_state *state = fe->demodulator_priv;
|
|
struct cx24117_cmd cmd;
|
|
u8 reg, st, inv;
|
|
int ret, idx;
|
|
unsigned int freq;
|
|
short srate_os, freq_os;
|
|
|
|
u8 buf[0x1f-4];
|
|
|
|
/* Read current tune parameters */
|
|
cmd.args[0] = CMD_GETCTLACC;
|
|
cmd.args[1] = (u8) state->demod;
|
|
cmd.len = 2;
|
|
ret = cx24117_cmd_execute(fe, &cmd);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
/* read all required regs at once */
|
|
reg = (state->demod == 0) ? CX24117_REG_FREQ3_0 : CX24117_REG_FREQ3_1;
|
|
ret = cx24117_readregN(state, reg, buf, 0x1f-4);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
st = buf[5];
|
|
|
|
/* get spectral inversion */
|
|
inv = (((state->demod == 0) ? ~st : st) >> 6) & 1;
|
|
if (inv == 0)
|
|
c->inversion = INVERSION_OFF;
|
|
else
|
|
c->inversion = INVERSION_ON;
|
|
|
|
/* modulation and fec */
|
|
idx = st & 0x3f;
|
|
if (c->delivery_system == SYS_DVBS2) {
|
|
if (idx > 11)
|
|
idx += 9;
|
|
else
|
|
idx += 7;
|
|
}
|
|
|
|
c->modulation = cx24117_modfec_modes[idx].modulation;
|
|
c->fec_inner = cx24117_modfec_modes[idx].fec;
|
|
|
|
/* frequency */
|
|
freq = (buf[0] << 16) | (buf[1] << 8) | buf[2];
|
|
freq_os = (buf[8] << 8) | buf[9];
|
|
c->frequency = freq + freq_os;
|
|
|
|
/* symbol rate */
|
|
srate_os = (buf[10] << 8) | buf[11];
|
|
c->symbol_rate = -1000 * srate_os + state->dcur.symbol_rate;
|
|
return 0;
|
|
}
|
|
|
|
static const struct dvb_frontend_ops cx24117_ops = {
|
|
.delsys = { SYS_DVBS, SYS_DVBS2 },
|
|
.info = {
|
|
.name = "Conexant CX24117/CX24132",
|
|
.frequency_min_hz = 950 * MHz,
|
|
.frequency_max_hz = 2150 * MHz,
|
|
.frequency_stepsize_hz = 1011 * kHz,
|
|
.frequency_tolerance_hz = 5 * MHz,
|
|
.symbol_rate_min = 1000000,
|
|
.symbol_rate_max = 45000000,
|
|
.caps = FE_CAN_INVERSION_AUTO |
|
|
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
|
|
FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
|
|
FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
|
|
FE_CAN_2G_MODULATION |
|
|
FE_CAN_QPSK | FE_CAN_RECOVER
|
|
},
|
|
|
|
.release = cx24117_release,
|
|
|
|
.init = cx24117_initfe,
|
|
.sleep = cx24117_sleep,
|
|
.read_status = cx24117_read_status,
|
|
.read_ber = cx24117_read_ber,
|
|
.read_signal_strength = cx24117_read_signal_strength,
|
|
.read_snr = cx24117_read_snr,
|
|
.read_ucblocks = cx24117_read_ucblocks,
|
|
.set_tone = cx24117_set_tone,
|
|
.set_voltage = cx24117_set_voltage,
|
|
.diseqc_send_master_cmd = cx24117_send_diseqc_msg,
|
|
.diseqc_send_burst = cx24117_diseqc_send_burst,
|
|
.get_frontend_algo = cx24117_get_algo,
|
|
.tune = cx24117_tune,
|
|
|
|
.set_frontend = cx24117_set_frontend,
|
|
.get_frontend = cx24117_get_frontend,
|
|
};
|
|
|
|
|
|
MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24117/cx24132 hardware");
|
|
MODULE_AUTHOR("Luis Alves (ljalvs@gmail.com)");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION("1.1");
|
|
MODULE_FIRMWARE(CX24117_DEFAULT_FIRMWARE);
|
|
|