a3f90c75b8
Right now, satellite tuner drivers specify frequencies in kHz, while terrestrial/cable ones specify in Hz. That's confusing for developers. However, the main problem is that universal tuners capable of handling both satellite and non-satelite delivery systems are appearing. We end by needing to hack the drivers in order to support such hybrid tuners. So, convert everything to specify tuner frequencies in Hz. Plese notice that a similar patch is also needed for frontends. Tested-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com> Acked-by: Michael Büsch <m@bues.ch> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
283 lines
6 KiB
C
283 lines
6 KiB
C
/*
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* Infineon TUA9001 silicon tuner driver
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*
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* Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "tua9001_priv.h"
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static int tua9001_init(struct dvb_frontend *fe)
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{
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struct tua9001_dev *dev = fe->tuner_priv;
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struct i2c_client *client = dev->client;
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int ret, i;
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static const struct tua9001_reg_val data[] = {
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{0x1e, 0x6512},
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{0x25, 0xb888},
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{0x39, 0x5460},
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{0x3b, 0x00c0},
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{0x3a, 0xf000},
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{0x08, 0x0000},
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{0x32, 0x0030},
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{0x41, 0x703a},
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{0x40, 0x1c78},
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{0x2c, 0x1c00},
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{0x36, 0xc013},
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{0x37, 0x6f18},
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{0x27, 0x0008},
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{0x2a, 0x0001},
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{0x34, 0x0a40},
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};
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dev_dbg(&client->dev, "\n");
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if (fe->callback) {
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ret = fe->callback(client->adapter,
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DVB_FRONTEND_COMPONENT_TUNER,
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TUA9001_CMD_RESETN, 0);
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if (ret)
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goto err;
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}
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for (i = 0; i < ARRAY_SIZE(data); i++) {
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ret = regmap_write(dev->regmap, data[i].reg, data[i].val);
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if (ret)
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goto err;
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}
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return 0;
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int tua9001_sleep(struct dvb_frontend *fe)
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{
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struct tua9001_dev *dev = fe->tuner_priv;
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struct i2c_client *client = dev->client;
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int ret;
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dev_dbg(&client->dev, "\n");
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if (fe->callback) {
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ret = fe->callback(client->adapter,
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DVB_FRONTEND_COMPONENT_TUNER,
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TUA9001_CMD_RESETN, 1);
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if (ret)
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goto err;
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}
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return 0;
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int tua9001_set_params(struct dvb_frontend *fe)
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{
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struct tua9001_dev *dev = fe->tuner_priv;
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struct i2c_client *client = dev->client;
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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int ret, i;
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u16 val;
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struct tua9001_reg_val data[2];
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dev_dbg(&client->dev,
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"delivery_system=%u frequency=%u bandwidth_hz=%u\n",
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c->delivery_system, c->frequency, c->bandwidth_hz);
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switch (c->delivery_system) {
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case SYS_DVBT:
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switch (c->bandwidth_hz) {
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case 8000000:
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val = 0x0000;
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break;
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case 7000000:
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val = 0x1000;
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break;
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case 6000000:
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val = 0x2000;
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break;
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case 5000000:
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val = 0x3000;
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break;
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default:
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ret = -EINVAL;
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goto err;
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}
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break;
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default:
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ret = -EINVAL;
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goto err;
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}
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data[0].reg = 0x04;
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data[0].val = val;
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data[1].reg = 0x1f;
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data[1].val = div_u64((u64) (c->frequency - 150000000) * 48, 1000000);
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if (fe->callback) {
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ret = fe->callback(client->adapter,
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DVB_FRONTEND_COMPONENT_TUNER,
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TUA9001_CMD_RXEN, 0);
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if (ret)
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goto err;
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}
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for (i = 0; i < ARRAY_SIZE(data); i++) {
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ret = regmap_write(dev->regmap, data[i].reg, data[i].val);
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if (ret)
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goto err;
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}
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if (fe->callback) {
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ret = fe->callback(client->adapter,
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DVB_FRONTEND_COMPONENT_TUNER,
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TUA9001_CMD_RXEN, 1);
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if (ret)
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goto err;
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}
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return 0;
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int tua9001_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
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{
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struct tua9001_dev *dev = fe->tuner_priv;
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struct i2c_client *client = dev->client;
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dev_dbg(&client->dev, "\n");
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*frequency = 0; /* Zero-IF */
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return 0;
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}
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static const struct dvb_tuner_ops tua9001_tuner_ops = {
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.info = {
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.name = "Infineon TUA9001",
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.frequency_min_hz = 170 * MHz,
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.frequency_max_hz = 862 * MHz,
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},
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.init = tua9001_init,
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.sleep = tua9001_sleep,
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.set_params = tua9001_set_params,
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.get_if_frequency = tua9001_get_if_frequency,
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};
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static int tua9001_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct tua9001_dev *dev;
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struct tua9001_platform_data *pdata = client->dev.platform_data;
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struct dvb_frontend *fe = pdata->dvb_frontend;
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int ret;
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static const struct regmap_config regmap_config = {
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.reg_bits = 8,
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.val_bits = 16,
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};
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dev = kzalloc(sizeof(*dev), GFP_KERNEL);
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if (!dev) {
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ret = -ENOMEM;
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goto err;
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}
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dev->fe = pdata->dvb_frontend;
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dev->client = client;
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dev->regmap = devm_regmap_init_i2c(client, ®map_config);
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if (IS_ERR(dev->regmap)) {
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ret = PTR_ERR(dev->regmap);
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goto err_kfree;
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}
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if (fe->callback) {
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ret = fe->callback(client->adapter,
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DVB_FRONTEND_COMPONENT_TUNER,
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TUA9001_CMD_CEN, 1);
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if (ret)
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goto err_kfree;
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ret = fe->callback(client->adapter,
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DVB_FRONTEND_COMPONENT_TUNER,
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TUA9001_CMD_RXEN, 0);
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if (ret)
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goto err_kfree;
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ret = fe->callback(client->adapter,
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DVB_FRONTEND_COMPONENT_TUNER,
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TUA9001_CMD_RESETN, 1);
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if (ret)
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goto err_kfree;
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}
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fe->tuner_priv = dev;
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memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops,
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sizeof(struct dvb_tuner_ops));
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i2c_set_clientdata(client, dev);
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dev_info(&client->dev, "Infineon TUA9001 successfully attached\n");
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return 0;
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err_kfree:
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kfree(dev);
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err:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int tua9001_remove(struct i2c_client *client)
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{
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struct tua9001_dev *dev = i2c_get_clientdata(client);
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struct dvb_frontend *fe = dev->fe;
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int ret;
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dev_dbg(&client->dev, "\n");
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if (fe->callback) {
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ret = fe->callback(client->adapter,
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DVB_FRONTEND_COMPONENT_TUNER,
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TUA9001_CMD_CEN, 0);
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if (ret)
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goto err_kfree;
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}
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kfree(dev);
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return 0;
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err_kfree:
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kfree(dev);
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static const struct i2c_device_id tua9001_id_table[] = {
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{"tua9001", 0},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, tua9001_id_table);
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static struct i2c_driver tua9001_driver = {
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.driver = {
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.name = "tua9001",
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.suppress_bind_attrs = true,
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},
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.probe = tua9001_probe,
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.remove = tua9001_remove,
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.id_table = tua9001_id_table,
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};
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module_i2c_driver(tua9001_driver);
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MODULE_DESCRIPTION("Infineon TUA9001 silicon tuner driver");
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MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
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MODULE_LICENSE("GPL");
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