[media] c8sectpfe: Add support for various ST NIM cards

This patch adds support for the following 2 NIM cards: -
1) B2100A (2x stv0367 demods & 2x NXP tda18212 tuners)
2) STV0903-6110NIM (stv0903 demod + 6110 tuner, lnb24)

A NIM card is a cold plugable expansion card which usually
features a demodulator / tuner combination.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c
new file mode 100644 (file)
index 0000000..69d7fe4
--- /dev/null
+++ b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c
@@ -0,0 +1,244 @@
+/*
+ *  c8sectpfe-dvb.c - C8SECTPFE STi DVB driver
+ *
+ * Copyright (c) STMicroelectronics 2015
+ *
+ *  Author Peter Griffin <peter.griffin@linaro.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ */
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/version.h>
+
+#include <dt-bindings/media/c8sectpfe.h>
+
+#include "c8sectpfe-common.h"
+#include "c8sectpfe-core.h"
+#include "c8sectpfe-dvb.h"
+
+#include "dvb-pll.h"
+#include "lnbh24.h"
+#include "stv0367.h"
+#include "stv0367_priv.h"
+#include "stv6110x.h"
+#include "stv090x.h"
+#include "tda18212.h"
+
+static inline const char *dvb_card_str(unsigned int c)
+{
+       switch (c) {
+       case STV0367_TDA18212_NIMA_1:   return "STV0367_TDA18212_NIMA_1";
+       case STV0367_TDA18212_NIMA_2:   return "STV0367_TDA18212_NIMA_2";
+       case STV0367_TDA18212_NIMB_1:   return "STV0367_TDA18212_NIMB_1";
+       case STV0367_TDA18212_NIMB_2:   return "STV0367_TDA18212_NIMB_2";
+       case STV0903_6110_LNB24_NIMA:   return "STV0903_6110_LNB24_NIMA";
+       case STV0903_6110_LNB24_NIMB:   return "STV0903_6110_LNB24_NIMB";
+       default:                        return "unknown dvb frontend card";
+       }
+}
+
+static struct stv090x_config stv090x_config = {
+       .device                 = STV0903,
+       .demod_mode             = STV090x_SINGLE,
+       .clk_mode               = STV090x_CLK_EXT,
+       .xtal                   = 16000000,
+       .address                = 0x69,
+
+       .ts1_mode               = STV090x_TSMODE_SERIAL_CONTINUOUS,
+       .ts2_mode               = STV090x_TSMODE_SERIAL_CONTINUOUS,
+
+       .repeater_level         = STV090x_RPTLEVEL_64,
+
+       .tuner_init             = NULL,
+       .tuner_set_mode         = NULL,
+       .tuner_set_frequency    = NULL,
+       .tuner_get_frequency    = NULL,
+       .tuner_set_bandwidth    = NULL,
+       .tuner_get_bandwidth    = NULL,
+       .tuner_set_bbgain       = NULL,
+       .tuner_get_bbgain       = NULL,
+       .tuner_set_refclk       = NULL,
+       .tuner_get_status       = NULL,
+};
+
+static struct stv6110x_config stv6110x_config = {
+       .addr                   = 0x60,
+       .refclk                 = 16000000,
+};
+
+#define NIMA 0
+#define NIMB 1
+
+static struct stv0367_config stv0367_tda18212_config[] = {
+       {
+               .demod_address = 0x1c,
+               .xtal = 16000000,
+               .if_khz = 4500,
+               .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
+               .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
+               .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
+       }, {
+               .demod_address = 0x1d,
+               .xtal = 16000000,
+               .if_khz = 4500,
+               .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
+               .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
+               .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
+       }, {
+               .demod_address = 0x1e,
+               .xtal = 16000000,
+               .if_khz = 4500,
+               .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
+               .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
+               .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
+       },
+};
+
+static struct tda18212_config tda18212_conf = {
+       .if_dvbt_6 = 4150,
+       .if_dvbt_7 = 4150,
+       .if_dvbt_8 = 4500,
+       .if_dvbc = 5000,
+};
+
+int c8sectpfe_frontend_attach(struct dvb_frontend **fe,
+               struct c8sectpfe *c8sectpfe,
+               struct channel_info *tsin, int chan_num)
+{
+       struct tda18212_config *tda18212;
+       struct stv6110x_devctl *fe2;
+       struct i2c_client *client;
+       struct i2c_board_info tda18212_info = {
+               .type = "tda18212",
+               .addr = 0x60,
+       };
+
+       if (!tsin)
+               return -EINVAL;
+
+       switch (tsin->dvb_card) {
+
+       case STV0367_TDA18212_NIMA_1:
+       case STV0367_TDA18212_NIMA_2:
+       case STV0367_TDA18212_NIMB_1:
+       case STV0367_TDA18212_NIMB_2:
+               if (tsin->dvb_card == STV0367_TDA18212_NIMA_1)
+                       *fe = dvb_attach(stv0367ter_attach,
+                                &stv0367_tda18212_config[0],
+                                       tsin->i2c_adapter);
+               else if (tsin->dvb_card == STV0367_TDA18212_NIMB_1)
+                       *fe = dvb_attach(stv0367ter_attach,
+                                &stv0367_tda18212_config[1],
+                                       tsin->i2c_adapter);
+               else
+                       *fe = dvb_attach(stv0367ter_attach,
+                                &stv0367_tda18212_config[2],
+                                       tsin->i2c_adapter);
+
+               if (!*fe) {
+                       dev_err(c8sectpfe->device,
+                               "%s: stv0367ter_attach failed for NIM card %s\n"
+                               , __func__, dvb_card_str(tsin->dvb_card));
+                       return -ENODEV;
+               };
+
+               /*
+                * init the demod so that i2c gate_ctrl
+                * to the tuner works correctly
+                */
+               (*fe)->ops.init(*fe);
+
+               /* Allocate the tda18212 structure */
+               tda18212 = devm_kzalloc(c8sectpfe->device,
+                                       sizeof(struct tda18212_config),
+                                       GFP_KERNEL);
+               if (!tda18212) {
+                       dev_err(c8sectpfe->device,
+                               "%s: devm_kzalloc failed\n", __func__);
+                       return -ENOMEM;
+               }
+
+               memcpy(tda18212, &tda18212_conf,
+                       sizeof(struct tda18212_config));
+
+               tda18212->fe = (*fe);
+
+               tda18212_info.platform_data = tda18212;
+
+               /* attach tuner */
+               request_module("tda18212");
+               client = i2c_new_device(tsin->i2c_adapter, &tda18212_info);
+               if (!client || !client->dev.driver) {
+                       dvb_frontend_detach(*fe);
+                       return -ENODEV;
+               }
+
+               if (!try_module_get(client->dev.driver->owner)) {
+                       i2c_unregister_device(client);
+                       dvb_frontend_detach(*fe);
+                       return -ENODEV;
+               }
+
+               tsin->i2c_client = client;
+
+               break;
+
+       case STV0903_6110_LNB24_NIMA:
+               *fe = dvb_attach(stv090x_attach,        &stv090x_config,
+                               tsin->i2c_adapter, STV090x_DEMODULATOR_0);
+               if (!*fe) {
+                       dev_err(c8sectpfe->device, "%s: stv090x_attach failed\n"
+                               "\tfor NIM card %s\n",
+                               __func__, dvb_card_str(tsin->dvb_card));
+                       return -ENODEV;
+               }
+
+               fe2 = dvb_attach(stv6110x_attach, *fe,
+                                       &stv6110x_config, tsin->i2c_adapter);
+               if (!fe2) {
+                       dev_err(c8sectpfe->device,
+                               "%s: stv6110x_attach failed for NIM card %s\n"
+                               , __func__, dvb_card_str(tsin->dvb_card));
+                       return -ENODEV;
+               };
+
+               stv090x_config.tuner_init = fe2->tuner_init;
+               stv090x_config.tuner_set_mode = fe2->tuner_set_mode;
+               stv090x_config.tuner_set_frequency = fe2->tuner_set_frequency;
+               stv090x_config.tuner_get_frequency = fe2->tuner_get_frequency;
+               stv090x_config.tuner_set_bandwidth = fe2->tuner_set_bandwidth;
+               stv090x_config.tuner_get_bandwidth = fe2->tuner_get_bandwidth;
+               stv090x_config.tuner_set_bbgain = fe2->tuner_set_bbgain;
+               stv090x_config.tuner_get_bbgain = fe2->tuner_get_bbgain;
+               stv090x_config.tuner_set_refclk = fe2->tuner_set_refclk;
+               stv090x_config.tuner_get_status = fe2->tuner_get_status;
+
+               dvb_attach(lnbh24_attach, *fe, tsin->i2c_adapter, 0, 0, 0x9);
+               break;
+
+       default:
+               dev_err(c8sectpfe->device,
+                       "%s: DVB frontend card %s not yet supported\n",
+                       __func__, dvb_card_str(tsin->dvb_card));
+               return -ENODEV;
+       }
+
+       (*fe)->id = chan_num;
+
+       dev_info(c8sectpfe->device,
+                       "DVB frontend card %s successfully attached",
+                       dvb_card_str(tsin->dvb_card));
+       return 0;
+}

diff --git a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.h b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.h
new file mode 100644 (file)
index 0000000..bd366db
--- /dev/null
+++ b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.h
@@ -0,0 +1,20 @@
+/*
+ * c8sectpfe-common.h - C8SECTPFE STi DVB driver
+ *
+ * Copyright (c) STMicroelectronics 2015
+ *
+ *   Author: Peter Griffin <peter.griffin@linaro.org>
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License as
+ *      published by the Free Software Foundation; either version 2 of
+ *      the License, or (at your option) any later version.
+ */
+#ifndef _C8SECTPFE_DVB_H_
+#define _C8SECTPFE_DVB_H_
+
+int c8sectpfe_frontend_attach(struct dvb_frontend **fe,
+                       struct c8sectpfe *c8sectpfe, struct channel_info *tsin,
+                       int chan_num);
+
+#endif