kernel/drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c

   1 /*
   2  *  c8sectpfe-dvb.c - C8SECTPFE STi DVB driver
   3  *
   4  * Copyright (c) STMicroelectronics 2015
   5  *
   6  *  Author Peter Griffin <peter.griffin@linaro.org>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *
  17  *  GNU General Public License for more details.
  18  */
  19 #include <linux/completion.h>
  20 #include <linux/delay.h>
  21 #include <linux/i2c.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/version.h>
  24
  25 #include <dt-bindings/media/c8sectpfe.h>
  26
  27 #include "c8sectpfe-common.h"
  28 #include "c8sectpfe-core.h"
  29 #include "c8sectpfe-dvb.h"
  30
  31 #include "dvb-pll.h"
  32 #include "lnbh24.h"
  33 #include "stv0367.h"
  34 #include "stv0367_priv.h"
  35 #include "stv6110x.h"
  36 #include "stv090x.h"
  37 #include "tda18212.h"
  38
  39 static inline const char *dvb_card_str(unsigned int c)
  40 {
  41         switch (c) {
  42         case STV0367_TDA18212_NIMA_1:   return "STV0367_TDA18212_NIMA_1";
  43         case STV0367_TDA18212_NIMA_2:   return "STV0367_TDA18212_NIMA_2";
  44         case STV0367_TDA18212_NIMB_1:   return "STV0367_TDA18212_NIMB_1";
  45         case STV0367_TDA18212_NIMB_2:   return "STV0367_TDA18212_NIMB_2";
  46         case STV0903_6110_LNB24_NIMA:   return "STV0903_6110_LNB24_NIMA";
  47         case STV0903_6110_LNB24_NIMB:   return "STV0903_6110_LNB24_NIMB";
  48         default:                        return "unknown dvb frontend card";
  49         }
  50 }
  51
  52 static struct stv090x_config stv090x_config = {
  53         .device                 = STV0903,
  54         .demod_mode             = STV090x_SINGLE,
  55         .clk_mode               = STV090x_CLK_EXT,
  56         .xtal                   = 16000000,
  57         .address                = 0x69,
  58
  59         .ts1_mode               = STV090x_TSMODE_SERIAL_CONTINUOUS,
  60         .ts2_mode               = STV090x_TSMODE_SERIAL_CONTINUOUS,
  61
  62         .repeater_level         = STV090x_RPTLEVEL_64,
  63
  64         .tuner_init             = NULL,
  65         .tuner_set_mode         = NULL,
  66         .tuner_set_frequency    = NULL,
  67         .tuner_get_frequency    = NULL,
  68         .tuner_set_bandwidth    = NULL,
  69         .tuner_get_bandwidth    = NULL,
  70         .tuner_set_bbgain       = NULL,
  71         .tuner_get_bbgain       = NULL,
  72         .tuner_set_refclk       = NULL,
  73         .tuner_get_status       = NULL,
  74 };
  75
  76 static struct stv6110x_config stv6110x_config = {
  77         .addr                   = 0x60,
  78         .refclk                 = 16000000,
  79 };
  80
  81 #define NIMA 0
  82 #define NIMB 1
  83
  84 static struct stv0367_config stv0367_tda18212_config[] = {
  85         {
  86                 .demod_address = 0x1c,
  87                 .xtal = 16000000,
  88                 .if_khz = 4500,
  89                 .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
  90                 .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
  91                 .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
  92         }, {
  93                 .demod_address = 0x1d,
  94                 .xtal = 16000000,
  95                 .if_khz = 4500,
  96                 .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
  97                 .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
  98                 .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
  99         }, {
 100                 .demod_address = 0x1e,
 101                 .xtal = 16000000,
 102                 .if_khz = 4500,
 103                 .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
 104                 .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
 105                 .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
 106         },
 107 };
 108
 109 static struct tda18212_config tda18212_conf = {
 110         .if_dvbt_6 = 4150,
 111         .if_dvbt_7 = 4150,
 112         .if_dvbt_8 = 4500,
 113         .if_dvbc = 5000,
 114 };
 115
 116 int c8sectpfe_frontend_attach(struct dvb_frontend **fe,
 117                 struct c8sectpfe *c8sectpfe,
 118                 struct channel_info *tsin, int chan_num)
 119 {
 120         struct tda18212_config *tda18212;
 121         struct stv6110x_devctl *fe2;
 122         struct i2c_client *client;
 123         struct i2c_board_info tda18212_info = {
 124                 .type = "tda18212",
 125                 .addr = 0x60,
 126         };
 127
 128         if (!tsin)
 129                 return -EINVAL;
 130
 131         switch (tsin->dvb_card) {
 132
 133         case STV0367_TDA18212_NIMA_1:
 134         case STV0367_TDA18212_NIMA_2:
 135         case STV0367_TDA18212_NIMB_1:
 136         case STV0367_TDA18212_NIMB_2:
 137                 if (tsin->dvb_card == STV0367_TDA18212_NIMA_1)
 138                         *fe = dvb_attach(stv0367ter_attach,
 139                                  &stv0367_tda18212_config[0],
 140                                         tsin->i2c_adapter);
 141                 else if (tsin->dvb_card == STV0367_TDA18212_NIMB_1)
 142                         *fe = dvb_attach(stv0367ter_attach,
 143                                  &stv0367_tda18212_config[1],
 144                                         tsin->i2c_adapter);
 145                 else
 146                         *fe = dvb_attach(stv0367ter_attach,
 147                                  &stv0367_tda18212_config[2],
 148                                         tsin->i2c_adapter);
 149
 150                 if (!*fe) {
 151                         dev_err(c8sectpfe->device,
 152                                 "%s: stv0367ter_attach failed for NIM card %s\n"
 153                                 , __func__, dvb_card_str(tsin->dvb_card));
 154                         return -ENODEV;
 155                 };
 156
 157                 /*
 158                  * init the demod so that i2c gate_ctrl
 159                  * to the tuner works correctly
 160                  */
 161                 (*fe)->ops.init(*fe);
 162
 163                 /* Allocate the tda18212 structure */
 164                 tda18212 = devm_kzalloc(c8sectpfe->device,
 165                                         sizeof(struct tda18212_config),
 166                                         GFP_KERNEL);
 167                 if (!tda18212) {
 168                         dev_err(c8sectpfe->device,
 169                                 "%s: devm_kzalloc failed\n", __func__);
 170                         return -ENOMEM;
 171                 }
 172
 173                 memcpy(tda18212, &tda18212_conf,
 174                         sizeof(struct tda18212_config));
 175
 176                 tda18212->fe = (*fe);
 177
 178                 tda18212_info.platform_data = tda18212;
 179
 180                 /* attach tuner */
 181                 request_module("tda18212");
 182                 client = i2c_new_device(tsin->i2c_adapter, &tda18212_info);
 183                 if (!client || !client->dev.driver) {
 184                         dvb_frontend_detach(*fe);
 185                         return -ENODEV;
 186                 }
 187
 188                 if (!try_module_get(client->dev.driver->owner)) {
 189                         i2c_unregister_device(client);
 190                         dvb_frontend_detach(*fe);
 191                         return -ENODEV;
 192                 }
 193
 194                 tsin->i2c_client = client;
 195
 196                 break;
 197
 198         case STV0903_6110_LNB24_NIMA:
 199                 *fe = dvb_attach(stv090x_attach,        &stv090x_config,
 200                                 tsin->i2c_adapter, STV090x_DEMODULATOR_0);
 201                 if (!*fe) {
 202                         dev_err(c8sectpfe->device, "%s: stv090x_attach failed\n"
 203                                 "\tfor NIM card %s\n",
 204                                 __func__, dvb_card_str(tsin->dvb_card));
 205                         return -ENODEV;
 206                 }
 207
 208                 fe2 = dvb_attach(stv6110x_attach, *fe,
 209                                         &stv6110x_config, tsin->i2c_adapter);
 210                 if (!fe2) {
 211                         dev_err(c8sectpfe->device,
 212                                 "%s: stv6110x_attach failed for NIM card %s\n"
 213                                 , __func__, dvb_card_str(tsin->dvb_card));
 214                         return -ENODEV;
 215                 };
 216
 217                 stv090x_config.tuner_init = fe2->tuner_init;
 218                 stv090x_config.tuner_set_mode = fe2->tuner_set_mode;
 219                 stv090x_config.tuner_set_frequency = fe2->tuner_set_frequency;
 220                 stv090x_config.tuner_get_frequency = fe2->tuner_get_frequency;
 221                 stv090x_config.tuner_set_bandwidth = fe2->tuner_set_bandwidth;
 222                 stv090x_config.tuner_get_bandwidth = fe2->tuner_get_bandwidth;
 223                 stv090x_config.tuner_set_bbgain = fe2->tuner_set_bbgain;
 224                 stv090x_config.tuner_get_bbgain = fe2->tuner_get_bbgain;
 225                 stv090x_config.tuner_set_refclk = fe2->tuner_set_refclk;
 226                 stv090x_config.tuner_get_status = fe2->tuner_get_status;
 227
 228                 dvb_attach(lnbh24_attach, *fe, tsin->i2c_adapter, 0, 0, 0x9);
 229                 break;
 230
 231         default:
 232                 dev_err(c8sectpfe->device,
 233                         "%s: DVB frontend card %s not yet supported\n",
 234                         __func__, dvb_card_str(tsin->dvb_card));
 235                 return -ENODEV;
 236         }
 237
 238         (*fe)->id = chan_num;
 239
 240         dev_info(c8sectpfe->device,
 241                         "DVB frontend card %s successfully attached",
 242                         dvb_card_str(tsin->dvb_card));
 243         return 0;
 244 }