2014-04-15 07:55:12 +07:00
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/*
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* Silicon Labs Si2168 DVB-T/T2/C demodulator driver
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*
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* Copyright (C) 2014 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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2014-04-11 08:00:50 +07:00
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#include "si2168_priv.h"
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static const struct dvb_frontend_ops si2168_ops;
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/* execute firmware command */
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2014-11-26 03:31:43 +07:00
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static int si2168_cmd_execute(struct i2c_client *client, struct si2168_cmd *cmd)
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2014-04-11 08:00:50 +07:00
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{
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2014-11-26 03:31:43 +07:00
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struct si2168_dev *dev = i2c_get_clientdata(client);
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2014-04-11 08:00:50 +07:00
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int ret;
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unsigned long timeout;
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2014-11-26 02:46:16 +07:00
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mutex_lock(&dev->i2c_mutex);
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2014-04-11 08:00:50 +07:00
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if (cmd->wlen) {
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/* write cmd and args for firmware */
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2014-11-26 03:53:21 +07:00
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ret = i2c_master_send(client, cmd->args, cmd->wlen);
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2014-04-11 08:00:50 +07:00
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if (ret < 0) {
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goto err_mutex_unlock;
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} else if (ret != cmd->wlen) {
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ret = -EREMOTEIO;
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goto err_mutex_unlock;
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}
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}
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if (cmd->rlen) {
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/* wait cmd execution terminate */
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2014-12-08 15:30:44 +07:00
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#define TIMEOUT 70
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2014-04-11 08:00:50 +07:00
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timeout = jiffies + msecs_to_jiffies(TIMEOUT);
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while (!time_after(jiffies, timeout)) {
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2014-11-26 03:53:21 +07:00
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ret = i2c_master_recv(client, cmd->args, cmd->rlen);
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2014-04-11 08:00:50 +07:00
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if (ret < 0) {
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goto err_mutex_unlock;
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} else if (ret != cmd->rlen) {
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ret = -EREMOTEIO;
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goto err_mutex_unlock;
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}
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/* firmware ready? */
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if ((cmd->args[0] >> 7) & 0x01)
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break;
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}
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2014-11-26 03:53:21 +07:00
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dev_dbg(&client->dev, "cmd execution took %d ms\n",
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2014-04-11 08:00:50 +07:00
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jiffies_to_msecs(jiffies) -
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(jiffies_to_msecs(timeout) - TIMEOUT));
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2014-06-13 21:08:25 +07:00
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if (!((cmd->args[0] >> 7) & 0x01)) {
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2014-04-11 08:00:50 +07:00
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ret = -ETIMEDOUT;
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goto err_mutex_unlock;
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}
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}
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2014-12-06 00:30:44 +07:00
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mutex_unlock(&dev->i2c_mutex);
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return 0;
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2014-04-11 08:00:50 +07:00
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err_mutex_unlock:
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2014-11-26 02:46:16 +07:00
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mutex_unlock(&dev->i2c_mutex);
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2014-11-26 03:53:21 +07:00
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dev_dbg(&client->dev, "failed=%d\n", ret);
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2014-04-11 08:00:50 +07:00
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return ret;
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}
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static int si2168_read_status(struct dvb_frontend *fe, fe_status_t *status)
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{
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2014-11-26 03:31:43 +07:00
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struct i2c_client *client = fe->demodulator_priv;
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struct si2168_dev *dev = i2c_get_clientdata(client);
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2014-04-12 06:35:27 +07:00
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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2014-04-11 08:00:50 +07:00
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int ret;
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struct si2168_cmd cmd;
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*status = 0;
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2014-11-26 02:46:16 +07:00
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if (!dev->active) {
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2014-04-11 08:00:50 +07:00
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ret = -EAGAIN;
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goto err;
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}
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2014-04-12 06:35:27 +07:00
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switch (c->delivery_system) {
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case SYS_DVBT:
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2014-07-10 05:36:58 +07:00
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memcpy(cmd.args, "\xa0\x01", 2);
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2014-04-12 06:35:27 +07:00
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cmd.wlen = 2;
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cmd.rlen = 13;
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break;
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2014-04-12 11:58:32 +07:00
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case SYS_DVBC_ANNEX_A:
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2014-07-10 05:36:58 +07:00
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memcpy(cmd.args, "\x90\x01", 2);
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2014-04-12 11:58:32 +07:00
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cmd.wlen = 2;
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cmd.rlen = 9;
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break;
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2014-04-12 06:35:27 +07:00
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case SYS_DVBT2:
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2014-07-10 05:36:58 +07:00
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memcpy(cmd.args, "\x50\x01", 2);
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2014-04-12 06:35:27 +07:00
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cmd.wlen = 2;
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cmd.rlen = 14;
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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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2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
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2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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2014-04-23 07:36:32 +07:00
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switch ((cmd.args[2] >> 1) & 0x03) {
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case 0x01:
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2014-04-11 08:00:50 +07:00
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*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
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break;
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2014-04-23 07:36:32 +07:00
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case 0x03:
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2014-04-11 08:00:50 +07:00
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*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
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FE_HAS_SYNC | FE_HAS_LOCK;
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break;
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}
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2014-11-26 02:46:16 +07:00
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dev->fe_status = *status;
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2014-04-11 08:00:50 +07:00
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2014-07-10 06:22:27 +07:00
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if (*status & FE_HAS_LOCK) {
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c->cnr.len = 1;
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c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
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c->cnr.stat[0].svalue = cmd.args[3] * 1000 / 4;
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} else {
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c->cnr.len = 1;
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c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
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}
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2014-11-26 03:53:21 +07:00
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dev_dbg(&client->dev, "status=%02x args=%*ph\n",
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2014-08-05 18:54:08 +07:00
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*status, cmd.rlen, cmd.args);
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2014-04-11 08:00:50 +07:00
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return 0;
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err:
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2014-11-26 03:53:21 +07:00
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dev_dbg(&client->dev, "failed=%d\n", ret);
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2014-04-11 08:00:50 +07:00
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return ret;
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}
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static int si2168_set_frontend(struct dvb_frontend *fe)
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{
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2014-11-26 03:31:43 +07:00
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struct i2c_client *client = fe->demodulator_priv;
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struct si2168_dev *dev = i2c_get_clientdata(client);
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2014-04-11 08:00:50 +07:00
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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int ret;
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struct si2168_cmd cmd;
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2014-04-12 06:35:27 +07:00
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u8 bandwidth, delivery_system;
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2014-04-11 08:00:50 +07:00
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2014-11-26 03:53:21 +07:00
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dev_dbg(&client->dev,
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2014-12-06 01:57:03 +07:00
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"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%u stream_id=%u\n",
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c->delivery_system, c->modulation, c->frequency,
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c->bandwidth_hz, c->symbol_rate, c->inversion,
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c->stream_id);
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2014-04-11 08:00:50 +07:00
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2014-11-26 02:46:16 +07:00
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if (!dev->active) {
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2014-04-11 08:00:50 +07:00
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ret = -EAGAIN;
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goto err;
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}
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2014-04-12 06:35:27 +07:00
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switch (c->delivery_system) {
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case SYS_DVBT:
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delivery_system = 0x20;
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break;
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2014-04-12 11:58:32 +07:00
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case SYS_DVBC_ANNEX_A:
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delivery_system = 0x30;
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break;
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2014-04-12 06:35:27 +07:00
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case SYS_DVBT2:
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delivery_system = 0x70;
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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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2015-01-16 19:35:19 +07:00
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if (c->bandwidth_hz == 0) {
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ret = -EINVAL;
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goto err;
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} else if (c->bandwidth_hz <= 5000000)
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2014-04-12 06:35:27 +07:00
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bandwidth = 0x05;
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2014-04-12 11:58:32 +07:00
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else if (c->bandwidth_hz <= 6000000)
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2014-04-12 06:35:27 +07:00
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bandwidth = 0x06;
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2014-04-12 11:58:32 +07:00
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else if (c->bandwidth_hz <= 7000000)
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2014-04-12 06:35:27 +07:00
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bandwidth = 0x07;
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2014-04-12 11:58:32 +07:00
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else if (c->bandwidth_hz <= 8000000)
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2014-04-12 06:35:27 +07:00
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bandwidth = 0x08;
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2014-04-12 11:58:32 +07:00
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else if (c->bandwidth_hz <= 9000000)
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bandwidth = 0x09;
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else if (c->bandwidth_hz <= 10000000)
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bandwidth = 0x0a;
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else
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bandwidth = 0x0f;
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2014-04-11 08:00:50 +07:00
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/* program tuner */
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if (fe->ops.tuner_ops.set_params) {
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ret = fe->ops.tuner_ops.set_params(fe);
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if (ret)
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goto err;
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}
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memcpy(cmd.args, "\x88\x02\x02\x02\x02", 5);
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cmd.wlen = 5;
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cmd.rlen = 5;
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2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
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2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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2014-04-12 06:35:27 +07:00
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/* that has no big effect */
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if (c->delivery_system == SYS_DVBT)
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memcpy(cmd.args, "\x89\x21\x06\x11\xff\x98", 6);
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2014-04-12 11:58:32 +07:00
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else if (c->delivery_system == SYS_DVBC_ANNEX_A)
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memcpy(cmd.args, "\x89\x21\x06\x11\x89\xf0", 6);
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2014-04-12 06:35:27 +07:00
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else if (c->delivery_system == SYS_DVBT2)
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memcpy(cmd.args, "\x89\x21\x06\x11\x89\x20", 6);
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2014-04-11 08:00:50 +07:00
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cmd.wlen = 6;
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cmd.rlen = 3;
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2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
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2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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2014-08-17 04:33:14 +07:00
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if (c->delivery_system == SYS_DVBT2) {
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/* select PLP */
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cmd.args[0] = 0x52;
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cmd.args[1] = c->stream_id & 0xff;
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cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1;
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cmd.wlen = 3;
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cmd.rlen = 1;
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2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
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2014-08-17 04:33:14 +07:00
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if (ret)
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goto err;
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}
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2014-04-11 08:00:50 +07:00
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memcpy(cmd.args, "\x51\x03", 2);
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cmd.wlen = 2;
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cmd.rlen = 12;
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2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
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2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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memcpy(cmd.args, "\x12\x08\x04", 3);
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cmd.wlen = 3;
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cmd.rlen = 3;
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2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
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2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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memcpy(cmd.args, "\x14\x00\x0c\x10\x12\x00", 6);
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cmd.wlen = 6;
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2014-07-11 20:40:29 +07:00
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cmd.rlen = 4;
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2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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memcpy(cmd.args, "\x14\x00\x06\x10\x24\x00", 6);
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cmd.wlen = 6;
|
2014-07-11 20:40:29 +07:00
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cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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memcpy(cmd.args, "\x14\x00\x07\x10\x00\x24", 6);
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cmd.wlen = 6;
|
2014-07-11 20:40:29 +07:00
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cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
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ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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memcpy(cmd.args, "\x14\x00\x0a\x10\x00\x00", 6);
|
2014-04-12 06:35:27 +07:00
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|
cmd.args[4] = delivery_system | bandwidth;
|
2014-04-11 08:00:50 +07:00
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cmd.wlen = 6;
|
2014-07-11 20:40:29 +07:00
|
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cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
|
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ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
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if (ret)
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goto err;
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|
2014-07-18 00:31:28 +07:00
|
|
|
/* set DVB-C symbol rate */
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|
|
if (c->delivery_system == SYS_DVBC_ANNEX_A) {
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memcpy(cmd.args, "\x14\x00\x02\x11", 4);
|
2014-12-06 00:54:14 +07:00
|
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|
cmd.args[4] = ((c->symbol_rate / 1000) >> 0) & 0xff;
|
2014-07-18 00:31:28 +07:00
|
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|
cmd.args[5] = ((c->symbol_rate / 1000) >> 8) & 0xff;
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|
cmd.wlen = 6;
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cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
|
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ret = si2168_cmd_execute(client, &cmd);
|
2014-07-18 00:31:28 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
2014-04-11 08:00:50 +07:00
|
|
|
memcpy(cmd.args, "\x14\x00\x0f\x10\x10\x00", 6);
|
|
|
|
cmd.wlen = 6;
|
2014-07-11 20:40:29 +07:00
|
|
|
cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-11-15 04:22:10 +07:00
|
|
|
memcpy(cmd.args, "\x14\x00\x09\x10\xe3\x08", 6);
|
2014-11-26 02:46:16 +07:00
|
|
|
cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10;
|
2014-04-11 08:00:50 +07:00
|
|
|
cmd.wlen = 6;
|
2014-07-11 20:40:29 +07:00
|
|
|
cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-11-15 04:22:10 +07:00
|
|
|
memcpy(cmd.args, "\x14\x00\x08\x10\xd7\x05", 6);
|
2014-11-26 02:46:16 +07:00
|
|
|
cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10;
|
2014-04-11 08:00:50 +07:00
|
|
|
cmd.wlen = 6;
|
2014-07-11 20:40:29 +07:00
|
|
|
cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
memcpy(cmd.args, "\x14\x00\x01\x12\x00\x00", 6);
|
|
|
|
cmd.wlen = 6;
|
2014-07-11 20:40:29 +07:00
|
|
|
cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-07-18 01:43:27 +07:00
|
|
|
memcpy(cmd.args, "\x14\x00\x01\x03\x0c\x00", 6);
|
|
|
|
cmd.wlen = 6;
|
|
|
|
cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-07-18 01:43:27 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-07-10 05:36:58 +07:00
|
|
|
memcpy(cmd.args, "\x85", 1);
|
2014-04-11 08:00:50 +07:00
|
|
|
cmd.wlen = 1;
|
|
|
|
cmd.rlen = 1;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
dev->delivery_system = c->delivery_system;
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
err:
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
2014-04-11 08:00:50 +07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int si2168_init(struct dvb_frontend *fe)
|
|
|
|
{
|
2014-11-26 03:31:43 +07:00
|
|
|
struct i2c_client *client = fe->demodulator_priv;
|
|
|
|
struct si2168_dev *dev = i2c_get_clientdata(client);
|
2014-04-11 08:00:50 +07:00
|
|
|
int ret, len, remaining;
|
2014-12-06 03:22:42 +07:00
|
|
|
const struct firmware *fw;
|
2014-12-07 03:53:16 +07:00
|
|
|
const char *fw_name;
|
2014-04-11 08:00:50 +07:00
|
|
|
struct si2168_cmd cmd;
|
2014-07-14 05:22:19 +07:00
|
|
|
unsigned int chip_id;
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_dbg(&client->dev, "\n");
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-08-26 01:07:04 +07:00
|
|
|
/* initialize */
|
2014-07-10 05:36:58 +07:00
|
|
|
memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13);
|
2014-04-11 08:00:50 +07:00
|
|
|
cmd.wlen = 13;
|
|
|
|
cmd.rlen = 0;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
if (dev->fw_loaded) {
|
2014-08-26 01:07:04 +07:00
|
|
|
/* resume */
|
|
|
|
memcpy(cmd.args, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8);
|
|
|
|
cmd.wlen = 8;
|
|
|
|
cmd.rlen = 1;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-08-26 01:07:04 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
memcpy(cmd.args, "\x85", 1);
|
|
|
|
cmd.wlen = 1;
|
|
|
|
cmd.rlen = 1;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-08-26 01:07:04 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
goto warm;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* power up */
|
2014-07-10 05:36:58 +07:00
|
|
|
memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8);
|
2014-04-11 08:00:50 +07:00
|
|
|
cmd.wlen = 8;
|
|
|
|
cmd.rlen = 1;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-07-13 20:52:18 +07:00
|
|
|
/* query chip revision */
|
2014-07-10 05:36:58 +07:00
|
|
|
memcpy(cmd.args, "\x02", 1);
|
2014-04-11 08:00:50 +07:00
|
|
|
cmd.wlen = 1;
|
|
|
|
cmd.rlen = 13;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-07-14 05:22:19 +07:00
|
|
|
chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | cmd.args[3] << 8 |
|
|
|
|
cmd.args[4] << 0;
|
|
|
|
|
2014-07-18 05:43:37 +07:00
|
|
|
#define SI2168_A20 ('A' << 24 | 68 << 16 | '2' << 8 | '0' << 0)
|
2014-07-14 05:22:19 +07:00
|
|
|
#define SI2168_A30 ('A' << 24 | 68 << 16 | '3' << 8 | '0' << 0)
|
|
|
|
#define SI2168_B40 ('B' << 24 | 68 << 16 | '4' << 8 | '0' << 0)
|
|
|
|
|
|
|
|
switch (chip_id) {
|
2014-07-18 05:43:37 +07:00
|
|
|
case SI2168_A20:
|
2014-12-07 03:53:16 +07:00
|
|
|
fw_name = SI2168_A20_FIRMWARE;
|
2014-07-18 05:43:37 +07:00
|
|
|
break;
|
2014-07-14 05:22:19 +07:00
|
|
|
case SI2168_A30:
|
2014-12-07 03:53:16 +07:00
|
|
|
fw_name = SI2168_A30_FIRMWARE;
|
2014-07-14 05:22:19 +07:00
|
|
|
break;
|
|
|
|
case SI2168_B40:
|
2014-12-07 03:53:16 +07:00
|
|
|
fw_name = SI2168_B40_FIRMWARE;
|
2014-07-14 05:22:19 +07:00
|
|
|
break;
|
|
|
|
default:
|
2014-12-07 03:43:27 +07:00
|
|
|
dev_err(&client->dev, "unknown chip version Si21%d-%c%c%c\n",
|
2014-08-05 18:54:08 +07:00
|
|
|
cmd.args[2], cmd.args[1],
|
2014-07-14 05:22:19 +07:00
|
|
|
cmd.args[3], cmd.args[4]);
|
2014-07-13 20:52:18 +07:00
|
|
|
ret = -EINVAL;
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
2014-12-07 03:43:27 +07:00
|
|
|
dev_info(&client->dev, "found a 'Silicon Labs Si21%d-%c%c%c'\n",
|
|
|
|
cmd.args[2], cmd.args[1], cmd.args[3], cmd.args[4]);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
/* request the firmware, this will block and timeout */
|
2014-12-07 03:53:16 +07:00
|
|
|
ret = request_firmware(&fw, fw_name, &client->dev);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret) {
|
2014-07-14 05:22:19 +07:00
|
|
|
/* fallback mechanism to handle old name for Si2168 B40 fw */
|
|
|
|
if (chip_id == SI2168_B40) {
|
2014-12-07 03:53:16 +07:00
|
|
|
fw_name = SI2168_B40_FIRMWARE_FALLBACK;
|
|
|
|
ret = request_firmware(&fw, fw_name, &client->dev);
|
2014-07-13 20:52:18 +07:00
|
|
|
}
|
2014-07-14 05:22:19 +07:00
|
|
|
|
|
|
|
if (ret == 0) {
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_notice(&client->dev,
|
2014-08-05 18:54:08 +07:00
|
|
|
"please install firmware file '%s'\n",
|
|
|
|
SI2168_B40_FIRMWARE);
|
2014-07-14 05:22:19 +07:00
|
|
|
} else {
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_err(&client->dev,
|
2014-08-05 18:54:08 +07:00
|
|
|
"firmware file '%s' not found\n",
|
2014-12-07 03:53:16 +07:00
|
|
|
fw_name);
|
2014-12-06 00:54:14 +07:00
|
|
|
goto err_release_firmware;
|
2014-07-13 20:52:18 +07:00
|
|
|
}
|
2014-04-11 08:00:50 +07:00
|
|
|
}
|
|
|
|
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_info(&client->dev, "downloading firmware from file '%s'\n",
|
2014-12-07 03:53:16 +07:00
|
|
|
fw_name);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-28 02:42:23 +07:00
|
|
|
if ((fw->size % 17 == 0) && (fw->data[0] > 5)) {
|
|
|
|
/* firmware is in the new format */
|
|
|
|
for (remaining = fw->size; remaining > 0; remaining -= 17) {
|
|
|
|
len = fw->data[fw->size - remaining];
|
|
|
|
memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);
|
|
|
|
cmd.wlen = len;
|
|
|
|
cmd.rlen = 1;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-12-06 03:08:22 +07:00
|
|
|
if (ret)
|
|
|
|
break;
|
2014-11-28 02:42:23 +07:00
|
|
|
}
|
2014-12-06 03:08:22 +07:00
|
|
|
} else if (fw->size % 8 == 0) {
|
2014-11-28 02:42:23 +07:00
|
|
|
/* firmware is in the old format */
|
2014-12-06 03:08:22 +07:00
|
|
|
for (remaining = fw->size; remaining > 0; remaining -= 8) {
|
|
|
|
len = 8;
|
2014-11-28 02:42:23 +07:00
|
|
|
memcpy(cmd.args, &fw->data[fw->size - remaining], len);
|
|
|
|
cmd.wlen = len;
|
|
|
|
cmd.rlen = 1;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-12-06 03:08:22 +07:00
|
|
|
if (ret)
|
|
|
|
break;
|
2014-04-11 08:00:50 +07:00
|
|
|
}
|
2014-12-06 03:08:22 +07:00
|
|
|
} else {
|
|
|
|
/* bad or unknown firmware format */
|
|
|
|
ret = -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ret) {
|
|
|
|
dev_err(&client->dev, "firmware download failed %d\n", ret);
|
|
|
|
goto err_release_firmware;
|
2014-04-11 08:00:50 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
release_firmware(fw);
|
|
|
|
|
2014-07-10 05:36:58 +07:00
|
|
|
memcpy(cmd.args, "\x01\x01", 2);
|
2014-04-11 08:00:50 +07:00
|
|
|
cmd.wlen = 2;
|
|
|
|
cmd.rlen = 1;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-11-28 02:42:22 +07:00
|
|
|
/* query firmware version */
|
|
|
|
memcpy(cmd.args, "\x11", 1);
|
|
|
|
cmd.wlen = 1;
|
|
|
|
cmd.rlen = 10;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-11-28 02:42:22 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-12-06 01:04:12 +07:00
|
|
|
dev_info(&client->dev, "firmware version: %c.%c.%d\n",
|
2014-11-28 02:42:22 +07:00
|
|
|
cmd.args[6], cmd.args[7], cmd.args[8]);
|
|
|
|
|
2014-08-12 02:58:10 +07:00
|
|
|
/* set ts mode */
|
|
|
|
memcpy(cmd.args, "\x14\x00\x01\x10\x10\x00", 6);
|
2014-11-26 02:46:16 +07:00
|
|
|
cmd.args[4] |= dev->ts_mode;
|
2014-08-12 02:58:10 +07:00
|
|
|
cmd.wlen = 6;
|
|
|
|
cmd.rlen = 4;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-08-12 02:58:10 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
dev->fw_loaded = true;
|
2014-11-04 04:28:39 +07:00
|
|
|
warm:
|
2014-11-26 02:46:16 +07:00
|
|
|
dev->active = true;
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
return 0;
|
2014-12-07 03:43:27 +07:00
|
|
|
|
2014-12-06 00:54:14 +07:00
|
|
|
err_release_firmware:
|
2014-11-20 05:23:15 +07:00
|
|
|
release_firmware(fw);
|
|
|
|
err:
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
2014-04-11 08:00:50 +07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int si2168_sleep(struct dvb_frontend *fe)
|
|
|
|
{
|
2014-11-26 03:31:43 +07:00
|
|
|
struct i2c_client *client = fe->demodulator_priv;
|
|
|
|
struct si2168_dev *dev = i2c_get_clientdata(client);
|
2014-07-10 04:45:31 +07:00
|
|
|
int ret;
|
|
|
|
struct si2168_cmd cmd;
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_dbg(&client->dev, "\n");
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
dev->active = false;
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-07-10 04:45:31 +07:00
|
|
|
memcpy(cmd.args, "\x13", 1);
|
|
|
|
cmd.wlen = 1;
|
|
|
|
cmd.rlen = 0;
|
2014-11-26 03:31:43 +07:00
|
|
|
ret = si2168_cmd_execute(client, &cmd);
|
2014-07-10 04:45:31 +07:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-04-11 08:00:50 +07:00
|
|
|
return 0;
|
2014-07-10 04:45:31 +07:00
|
|
|
err:
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
2014-07-10 04:45:31 +07:00
|
|
|
return ret;
|
2014-04-11 08:00:50 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int si2168_get_tune_settings(struct dvb_frontend *fe,
|
|
|
|
struct dvb_frontend_tune_settings *s)
|
|
|
|
{
|
|
|
|
s->min_delay_ms = 900;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* I2C gate logic
|
|
|
|
* We must use unlocked i2c_transfer() here because I2C lock is already taken
|
|
|
|
* by tuner driver.
|
|
|
|
*/
|
|
|
|
static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan)
|
|
|
|
{
|
2014-11-26 03:31:43 +07:00
|
|
|
struct i2c_client *client = mux_priv;
|
|
|
|
struct si2168_dev *dev = i2c_get_clientdata(client);
|
2014-04-11 08:00:50 +07:00
|
|
|
int ret;
|
|
|
|
struct i2c_msg gate_open_msg = {
|
2014-11-26 03:53:21 +07:00
|
|
|
.addr = client->addr,
|
2014-04-11 08:00:50 +07:00
|
|
|
.flags = 0,
|
|
|
|
.len = 3,
|
|
|
|
.buf = "\xc0\x0d\x01",
|
|
|
|
};
|
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
mutex_lock(&dev->i2c_mutex);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
/* open tuner I2C gate */
|
2014-11-26 03:53:21 +07:00
|
|
|
ret = __i2c_transfer(client->adapter, &gate_open_msg, 1);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret != 1) {
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_warn(&client->dev, "i2c write failed=%d\n", ret);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret >= 0)
|
|
|
|
ret = -EREMOTEIO;
|
|
|
|
} else {
|
|
|
|
ret = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int si2168_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan)
|
|
|
|
{
|
2014-11-26 03:31:43 +07:00
|
|
|
struct i2c_client *client = mux_priv;
|
|
|
|
struct si2168_dev *dev = i2c_get_clientdata(client);
|
2014-04-11 08:00:50 +07:00
|
|
|
int ret;
|
|
|
|
struct i2c_msg gate_close_msg = {
|
2014-11-26 03:53:21 +07:00
|
|
|
.addr = client->addr,
|
2014-04-11 08:00:50 +07:00
|
|
|
.flags = 0,
|
|
|
|
.len = 3,
|
|
|
|
.buf = "\xc0\x0d\x00",
|
|
|
|
};
|
|
|
|
|
|
|
|
/* close tuner I2C gate */
|
2014-11-26 03:53:21 +07:00
|
|
|
ret = __i2c_transfer(client->adapter, &gate_close_msg, 1);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret != 1) {
|
2014-11-26 03:53:21 +07:00
|
|
|
dev_warn(&client->dev, "i2c write failed=%d\n", ret);
|
2014-04-11 08:00:50 +07:00
|
|
|
if (ret >= 0)
|
|
|
|
ret = -EREMOTEIO;
|
|
|
|
} else {
|
|
|
|
ret = 0;
|
|
|
|
}
|
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
mutex_unlock(&dev->i2c_mutex);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct dvb_frontend_ops si2168_ops = {
|
2014-04-12 11:58:32 +07:00
|
|
|
.delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A},
|
2014-04-11 08:00:50 +07:00
|
|
|
.info = {
|
|
|
|
.name = "Silicon Labs Si2168",
|
2014-11-26 02:26:49 +07:00
|
|
|
.symbol_rate_min = 1000000,
|
|
|
|
.symbol_rate_max = 7200000,
|
2014-04-11 08:00:50 +07:00
|
|
|
.caps = FE_CAN_FEC_1_2 |
|
|
|
|
FE_CAN_FEC_2_3 |
|
|
|
|
FE_CAN_FEC_3_4 |
|
|
|
|
FE_CAN_FEC_5_6 |
|
|
|
|
FE_CAN_FEC_7_8 |
|
|
|
|
FE_CAN_FEC_AUTO |
|
|
|
|
FE_CAN_QPSK |
|
|
|
|
FE_CAN_QAM_16 |
|
|
|
|
FE_CAN_QAM_32 |
|
|
|
|
FE_CAN_QAM_64 |
|
|
|
|
FE_CAN_QAM_128 |
|
|
|
|
FE_CAN_QAM_256 |
|
|
|
|
FE_CAN_QAM_AUTO |
|
|
|
|
FE_CAN_TRANSMISSION_MODE_AUTO |
|
|
|
|
FE_CAN_GUARD_INTERVAL_AUTO |
|
|
|
|
FE_CAN_HIERARCHY_AUTO |
|
|
|
|
FE_CAN_MUTE_TS |
|
2014-09-23 23:53:09 +07:00
|
|
|
FE_CAN_2G_MODULATION |
|
|
|
|
FE_CAN_MULTISTREAM
|
2014-04-11 08:00:50 +07:00
|
|
|
},
|
|
|
|
|
|
|
|
.get_tune_settings = si2168_get_tune_settings,
|
|
|
|
|
|
|
|
.init = si2168_init,
|
|
|
|
.sleep = si2168_sleep,
|
|
|
|
|
|
|
|
.set_frontend = si2168_set_frontend,
|
|
|
|
|
|
|
|
.read_status = si2168_read_status,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int si2168_probe(struct i2c_client *client,
|
|
|
|
const struct i2c_device_id *id)
|
|
|
|
{
|
|
|
|
struct si2168_config *config = client->dev.platform_data;
|
2014-11-26 02:46:16 +07:00
|
|
|
struct si2168_dev *dev;
|
2014-04-11 08:00:50 +07:00
|
|
|
int ret;
|
|
|
|
|
2014-08-05 18:54:08 +07:00
|
|
|
dev_dbg(&client->dev, "\n");
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
|
|
if (!dev) {
|
2014-04-11 08:00:50 +07:00
|
|
|
ret = -ENOMEM;
|
2014-08-05 18:54:08 +07:00
|
|
|
dev_err(&client->dev, "kzalloc() failed\n");
|
2014-12-06 02:02:42 +07:00
|
|
|
goto err;
|
2014-04-11 08:00:50 +07:00
|
|
|
}
|
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
mutex_init(&dev->i2c_mutex);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
/* create mux i2c adapter for tuner */
|
2014-11-26 03:31:43 +07:00
|
|
|
dev->adapter = i2c_add_mux_adapter(client->adapter, &client->dev,
|
|
|
|
client, 0, 0, 0, si2168_select, si2168_deselect);
|
2014-11-26 02:46:16 +07:00
|
|
|
if (dev->adapter == NULL) {
|
2014-07-18 02:38:08 +07:00
|
|
|
ret = -ENODEV;
|
2014-12-06 00:54:14 +07:00
|
|
|
goto err_kfree;
|
2014-07-18 02:38:08 +07:00
|
|
|
}
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
/* create dvb_frontend */
|
2014-11-26 02:46:16 +07:00
|
|
|
memcpy(&dev->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops));
|
2014-11-26 03:31:43 +07:00
|
|
|
dev->fe.demodulator_priv = client;
|
2014-11-26 02:46:16 +07:00
|
|
|
*config->i2c_adapter = dev->adapter;
|
|
|
|
*config->fe = &dev->fe;
|
|
|
|
dev->ts_mode = config->ts_mode;
|
|
|
|
dev->ts_clock_inv = config->ts_clock_inv;
|
|
|
|
dev->fw_loaded = false;
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
i2c_set_clientdata(client, dev);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-12-06 00:54:14 +07:00
|
|
|
dev_info(&client->dev, "Silicon Labs Si2168 successfully attached\n");
|
2014-04-11 08:00:50 +07:00
|
|
|
return 0;
|
2014-12-06 00:54:14 +07:00
|
|
|
err_kfree:
|
2014-11-26 02:46:16 +07:00
|
|
|
kfree(dev);
|
2014-12-06 02:02:42 +07:00
|
|
|
err:
|
2014-08-05 18:54:08 +07:00
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
2014-04-11 08:00:50 +07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int si2168_remove(struct i2c_client *client)
|
|
|
|
{
|
2014-11-26 02:46:16 +07:00
|
|
|
struct si2168_dev *dev = i2c_get_clientdata(client);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-08-05 18:54:08 +07:00
|
|
|
dev_dbg(&client->dev, "\n");
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
i2c_del_mux_adapter(dev->adapter);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
dev->fe.ops.release = NULL;
|
|
|
|
dev->fe.demodulator_priv = NULL;
|
2014-04-11 08:00:50 +07:00
|
|
|
|
2014-11-26 02:46:16 +07:00
|
|
|
kfree(dev);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-12-06 00:54:14 +07:00
|
|
|
static const struct i2c_device_id si2168_id_table[] = {
|
2014-04-11 08:00:50 +07:00
|
|
|
{"si2168", 0},
|
|
|
|
{}
|
|
|
|
};
|
2014-12-06 00:54:14 +07:00
|
|
|
MODULE_DEVICE_TABLE(i2c, si2168_id_table);
|
2014-04-11 08:00:50 +07:00
|
|
|
|
|
|
|
static struct i2c_driver si2168_driver = {
|
|
|
|
.driver = {
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.name = "si2168",
|
|
|
|
},
|
|
|
|
.probe = si2168_probe,
|
|
|
|
.remove = si2168_remove,
|
2014-12-06 00:54:14 +07:00
|
|
|
.id_table = si2168_id_table,
|
2014-04-11 08:00:50 +07:00
|
|
|
};
|
|
|
|
|
|
|
|
module_i2c_driver(si2168_driver);
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
|
|
|
|
MODULE_DESCRIPTION("Silicon Labs Si2168 DVB-T/T2/C demodulator driver");
|
|
|
|
MODULE_LICENSE("GPL");
|
2014-07-18 05:43:37 +07:00
|
|
|
MODULE_FIRMWARE(SI2168_A20_FIRMWARE);
|
2014-07-14 02:09:03 +07:00
|
|
|
MODULE_FIRMWARE(SI2168_A30_FIRMWARE);
|
2014-07-13 20:52:18 +07:00
|
|
|
MODULE_FIRMWARE(SI2168_B40_FIRMWARE);
|