2014-04-15 00:51:32 +00:00
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/*
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2017-04-06 12:17:42 +00:00
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* Silicon Labs Si2146/2147/2148/2157/2158 silicon tuner driver
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2014-04-15 00:51:32 +00:00
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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 00:58:10 +00:00
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#include "si2157_priv.h"
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2014-07-13 13:52:20 +00:00
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static const struct dvb_tuner_ops si2157_ops;
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2014-04-11 00:58:10 +00:00
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/* execute firmware command */
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2014-12-06 17:40:06 +00:00
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static int si2157_cmd_execute(struct i2c_client *client, struct si2157_cmd *cmd)
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2014-04-11 00:58:10 +00:00
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{
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2014-12-06 17:40:06 +00:00
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struct si2157_dev *dev = i2c_get_clientdata(client);
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2014-04-11 00:58:10 +00:00
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int ret;
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unsigned long timeout;
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2014-12-05 20:46:30 +00:00
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mutex_lock(&dev->i2c_mutex);
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2014-04-11 00:58:10 +00:00
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2014-07-10 09:02:53 +00:00
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if (cmd->wlen) {
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2014-04-11 00:58:10 +00:00
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/* write cmd and args for firmware */
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2014-12-06 17:40:06 +00:00
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ret = i2c_master_send(client, cmd->args, cmd->wlen);
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2014-04-11 00:58:10 +00:00
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if (ret < 0) {
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goto err_mutex_unlock;
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2014-07-10 09:02:53 +00:00
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} else if (ret != cmd->wlen) {
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2014-04-11 00:58:10 +00:00
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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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2014-07-10 09:02:53 +00:00
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if (cmd->rlen) {
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/* wait cmd execution terminate */
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#define TIMEOUT 80
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timeout = jiffies + msecs_to_jiffies(TIMEOUT);
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while (!time_after(jiffies, timeout)) {
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2014-12-06 17:40:06 +00:00
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ret = i2c_master_recv(client, cmd->args, cmd->rlen);
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2014-07-10 09:02:53 +00:00
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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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2014-04-11 00:58:10 +00:00
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}
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2014-12-06 17:40:06 +00:00
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dev_dbg(&client->dev, "cmd execution took %d ms\n",
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2014-07-10 09:02:53 +00:00
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jiffies_to_msecs(jiffies) -
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(jiffies_to_msecs(timeout) - TIMEOUT));
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2014-04-11 00:58:10 +00:00
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2014-07-10 09:02:53 +00:00
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if (!((cmd->args[0] >> 7) & 0x01)) {
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ret = -ETIMEDOUT;
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goto err_mutex_unlock;
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}
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2014-04-11 00:58:10 +00:00
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}
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2014-12-06 17:04:05 +00:00
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mutex_unlock(&dev->i2c_mutex);
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return 0;
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2014-07-10 09:02:53 +00:00
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2014-04-11 00:58:10 +00:00
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err_mutex_unlock:
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2014-12-05 20:46:30 +00:00
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mutex_unlock(&dev->i2c_mutex);
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2014-12-06 17:40:06 +00:00
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dev_dbg(&client->dev, "failed=%d\n", ret);
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2014-04-11 00:58:10 +00:00
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return ret;
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}
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static int si2157_init(struct dvb_frontend *fe)
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{
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2014-12-06 17:40:06 +00:00
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struct i2c_client *client = fe->tuner_priv;
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struct si2157_dev *dev = i2c_get_clientdata(client);
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2014-09-07 14:20:34 +00:00
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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2014-07-13 23:05:28 +00:00
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int ret, len, remaining;
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2014-07-13 13:52:19 +00:00
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struct si2157_cmd cmd;
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2014-12-06 17:51:17 +00:00
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const struct firmware *fw;
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2014-12-06 21:15:18 +00:00
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const char *fw_name;
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2017-04-06 12:17:42 +00:00
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unsigned int uitmp, chip_id;
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2014-04-11 00:58:10 +00:00
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2014-12-06 17:40:06 +00:00
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dev_dbg(&client->dev, "\n");
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2014-04-11 00:58:10 +00:00
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2016-02-08 11:51:16 +00:00
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/* Returned IF frequency is garbage when firmware is not running */
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memcpy(cmd.args, "\x15\x00\x06\x07", 4);
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cmd.wlen = 4;
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cmd.rlen = 4;
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ret = si2157_cmd_execute(client, &cmd);
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if (ret)
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goto err;
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uitmp = cmd.args[2] << 0 | cmd.args[3] << 8;
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dev_dbg(&client->dev, "if_frequency kHz=%u\n", uitmp);
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if (uitmp == dev->if_frequency / 1000)
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2014-08-25 18:07:03 +00:00
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goto warm;
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/* power up */
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2017-04-06 12:17:42 +00:00
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if (dev->chiptype == SI2157_CHIPTYPE_SI2146) {
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2014-11-24 06:57:33 +00:00
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memcpy(cmd.args, "\xc0\x05\x01\x00\x00\x0b\x00\x00\x01", 9);
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cmd.wlen = 9;
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2017-02-17 00:55:31 +00:00
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} else if (dev->chiptype == SI2157_CHIPTYPE_SI2141) {
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memcpy(cmd.args, "\xc0\x00\x0d\x0e\x00\x01\x01\x01\x01\x03", 10);
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cmd.wlen = 10;
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2017-04-06 12:17:42 +00:00
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} else {
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2014-11-24 06:57:33 +00:00
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memcpy(cmd.args, "\xc0\x00\x0c\x00\x00\x01\x01\x01\x01\x01\x01\x02\x00\x00\x01", 15);
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cmd.wlen = 15;
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}
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2014-07-13 13:52:19 +00:00
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cmd.rlen = 1;
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2014-12-06 17:40:06 +00:00
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ret = si2157_cmd_execute(client, &cmd);
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2014-07-13 13:52:19 +00:00
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if (ret)
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goto err;
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2017-02-17 00:55:31 +00:00
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/* Si2141 needs a second command before it answers the revision query */
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if (dev->chiptype == SI2157_CHIPTYPE_SI2141) {
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memcpy(cmd.args, "\xc0\x08\x01\x02\x00\x00\x01", 7);
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cmd.wlen = 7;
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ret = si2157_cmd_execute(client, &cmd);
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if (ret)
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goto err;
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}
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2014-07-13 13:52:19 +00:00
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/* query chip revision */
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memcpy(cmd.args, "\x02", 1);
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cmd.wlen = 1;
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cmd.rlen = 13;
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2014-12-06 17:40:06 +00:00
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ret = si2157_cmd_execute(client, &cmd);
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2014-07-13 13:52:19 +00:00
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if (ret)
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goto err;
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2014-07-13 23:05:28 +00:00
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chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | cmd.args[3] << 8 |
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cmd.args[4] << 0;
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#define SI2158_A20 ('A' << 24 | 58 << 16 | '2' << 8 | '0' << 0)
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2014-11-14 21:19:37 +00:00
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#define SI2148_A20 ('A' << 24 | 48 << 16 | '2' << 8 | '0' << 0)
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2014-07-13 23:05:28 +00:00
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#define SI2157_A30 ('A' << 24 | 57 << 16 | '3' << 8 | '0' << 0)
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2014-09-11 20:01:38 +00:00
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#define SI2147_A30 ('A' << 24 | 47 << 16 | '3' << 8 | '0' << 0)
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2014-11-24 06:57:33 +00:00
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#define SI2146_A10 ('A' << 24 | 46 << 16 | '1' << 8 | '0' << 0)
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2017-02-17 00:55:31 +00:00
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#define SI2141_A10 ('A' << 24 | 41 << 16 | '1' << 8 | '0' << 0)
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2014-07-13 23:05:28 +00:00
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switch (chip_id) {
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case SI2158_A20:
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2014-11-14 21:19:37 +00:00
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case SI2148_A20:
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2014-12-06 21:15:18 +00:00
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fw_name = SI2158_A20_FIRMWARE;
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2014-07-13 23:05:28 +00:00
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break;
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2017-02-17 00:55:31 +00:00
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case SI2141_A10:
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fw_name = SI2141_A10_FIRMWARE;
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break;
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2014-07-13 23:05:28 +00:00
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case SI2157_A30:
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2014-09-11 20:01:38 +00:00
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case SI2147_A30:
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2014-11-24 06:57:33 +00:00
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case SI2146_A10:
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2014-12-06 21:15:18 +00:00
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fw_name = NULL;
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2014-12-06 21:12:39 +00:00
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break;
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2014-07-13 23:05:28 +00:00
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default:
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2014-12-06 17:40:06 +00:00
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dev_err(&client->dev, "unknown chip version Si21%d-%c%c%c\n",
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2014-08-05 12:03:54 +00:00
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cmd.args[2], cmd.args[1],
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2014-07-13 23:05:28 +00:00
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cmd.args[3], cmd.args[4]);
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ret = -EINVAL;
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goto err;
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}
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2014-07-13 13:52:20 +00:00
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2014-12-06 21:12:39 +00:00
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dev_info(&client->dev, "found a 'Silicon Labs Si21%d-%c%c%c'\n",
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cmd.args[2], cmd.args[1], cmd.args[3], cmd.args[4]);
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2014-12-06 21:15:18 +00:00
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if (fw_name == NULL)
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2014-12-06 21:12:39 +00:00
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goto skip_fw_download;
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2014-07-13 13:52:20 +00:00
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2014-07-13 23:05:28 +00:00
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/* request the firmware, this will block and timeout */
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2014-12-06 21:15:18 +00:00
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ret = request_firmware(&fw, fw_name, &client->dev);
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2014-07-13 23:05:28 +00:00
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if (ret) {
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2014-12-06 17:40:06 +00:00
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dev_err(&client->dev, "firmware file '%s' not found\n",
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2014-12-06 21:15:18 +00:00
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fw_name);
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2014-07-13 23:05:28 +00:00
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goto err;
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}
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2014-07-13 13:52:20 +00:00
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2014-07-13 23:05:28 +00:00
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/* firmware should be n chunks of 17 bytes */
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if (fw->size % 17 != 0) {
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2014-12-06 17:40:06 +00:00
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dev_err(&client->dev, "firmware file '%s' is invalid\n",
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2014-12-06 21:15:18 +00:00
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fw_name);
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2014-07-13 23:05:28 +00:00
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ret = -EINVAL;
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2014-12-06 17:51:17 +00:00
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goto err_release_firmware;
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2014-07-13 23:05:28 +00:00
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}
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2014-07-13 13:52:20 +00:00
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2014-12-06 17:40:06 +00:00
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dev_info(&client->dev, "downloading firmware from file '%s'\n",
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2014-12-06 21:15:18 +00:00
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fw_name);
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2014-07-13 13:52:20 +00:00
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2014-07-13 23:05:28 +00:00
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for (remaining = fw->size; remaining > 0; remaining -= 17) {
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len = fw->data[fw->size - remaining];
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2015-09-30 00:10:10 +00:00
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if (len > SI2157_ARGLEN) {
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dev_err(&client->dev, "Bad firmware length\n");
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2015-10-05 22:33:29 +00:00
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ret = -EINVAL;
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2015-09-30 00:10:10 +00:00
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goto err_release_firmware;
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}
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2014-07-13 23:05:28 +00:00
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memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);
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cmd.wlen = len;
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cmd.rlen = 1;
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2014-12-06 17:40:06 +00:00
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ret = si2157_cmd_execute(client, &cmd);
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2014-07-13 23:05:28 +00:00
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if (ret) {
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2014-12-06 17:40:06 +00:00
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dev_err(&client->dev, "firmware download failed %d\n",
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2014-08-05 12:03:54 +00:00
|
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|
ret);
|
2014-12-06 17:51:17 +00:00
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goto err_release_firmware;
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2014-07-13 13:52:20 +00:00
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}
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}
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2014-07-13 23:05:28 +00:00
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release_firmware(fw);
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skip_fw_download:
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2014-07-13 13:52:19 +00:00
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/* reboot the tuner with new firmware? */
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memcpy(cmd.args, "\x01\x01", 2);
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cmd.wlen = 2;
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cmd.rlen = 1;
|
2014-12-06 17:40:06 +00:00
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ret = si2157_cmd_execute(client, &cmd);
|
2014-07-13 13:52:19 +00:00
|
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|
if (ret)
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goto err;
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|
2014-12-06 20:25:24 +00:00
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/* query firmware version */
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memcpy(cmd.args, "\x11", 1);
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cmd.wlen = 1;
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cmd.rlen = 10;
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ret = si2157_cmd_execute(client, &cmd);
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|
|
if (ret)
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goto err;
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|
|
|
|
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dev_info(&client->dev, "firmware version: %c.%c.%d\n",
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|
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cmd.args[6], cmd.args[7], cmd.args[8]);
|
2014-08-25 18:07:03 +00:00
|
|
|
warm:
|
2014-09-07 14:20:34 +00:00
|
|
|
/* init statistics in order signal app which are supported */
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|
|
c->strength.len = 1;
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|
|
c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
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|
|
|
/* start statistics polling */
|
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|
|
schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(1000));
|
|
|
|
|
2014-12-05 20:46:30 +00:00
|
|
|
dev->active = true;
|
2014-04-11 00:58:10 +00:00
|
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return 0;
|
2014-12-06 17:51:17 +00:00
|
|
|
err_release_firmware:
|
2014-11-30 18:05:48 +00:00
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|
release_firmware(fw);
|
2014-11-30 19:48:24 +00:00
|
|
|
err:
|
2014-12-06 17:40:06 +00:00
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
2014-07-13 13:52:19 +00:00
|
|
|
return ret;
|
2014-04-11 00:58:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int si2157_sleep(struct dvb_frontend *fe)
|
|
|
|
{
|
2014-12-06 17:40:06 +00:00
|
|
|
struct i2c_client *client = fe->tuner_priv;
|
|
|
|
struct si2157_dev *dev = i2c_get_clientdata(client);
|
2014-07-09 21:37:30 +00:00
|
|
|
int ret;
|
|
|
|
struct si2157_cmd cmd;
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2014-12-06 17:40:06 +00:00
|
|
|
dev_dbg(&client->dev, "\n");
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2014-12-05 20:46:30 +00:00
|
|
|
dev->active = false;
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2014-09-07 14:20:34 +00:00
|
|
|
/* stop statistics polling */
|
|
|
|
cancel_delayed_work_sync(&dev->stat_work);
|
|
|
|
|
2014-08-25 18:07:02 +00:00
|
|
|
/* standby */
|
|
|
|
memcpy(cmd.args, "\x16\x00", 2);
|
|
|
|
cmd.wlen = 2;
|
|
|
|
cmd.rlen = 1;
|
2014-12-06 17:40:06 +00:00
|
|
|
ret = si2157_cmd_execute(client, &cmd);
|
2014-07-09 21:37:30 +00:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-04-11 00:58:10 +00:00
|
|
|
return 0;
|
2014-07-09 21:37:30 +00:00
|
|
|
err:
|
2014-12-06 17:40:06 +00:00
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
2014-07-09 21:37:30 +00:00
|
|
|
return ret;
|
2014-04-11 00:58:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int si2157_set_params(struct dvb_frontend *fe)
|
|
|
|
{
|
2014-12-06 17:40:06 +00:00
|
|
|
struct i2c_client *client = fe->tuner_priv;
|
|
|
|
struct si2157_dev *dev = i2c_get_clientdata(client);
|
2014-04-11 00:58:10 +00:00
|
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
|
|
|
int ret;
|
|
|
|
struct si2157_cmd cmd;
|
2014-07-13 13:52:21 +00:00
|
|
|
u8 bandwidth, delivery_system;
|
2015-02-28 15:25:23 +00:00
|
|
|
u32 if_frequency = 5000000;
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2014-12-06 17:40:06 +00:00
|
|
|
dev_dbg(&client->dev,
|
2014-08-05 12:03:54 +00:00
|
|
|
"delivery_system=%d frequency=%u bandwidth_hz=%u\n",
|
2014-12-06 17:40:06 +00:00
|
|
|
c->delivery_system, c->frequency, c->bandwidth_hz);
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2014-12-05 20:46:30 +00:00
|
|
|
if (!dev->active) {
|
2014-04-11 00:58:10 +00:00
|
|
|
ret = -EAGAIN;
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
2014-07-13 13:52:21 +00:00
|
|
|
if (c->bandwidth_hz <= 6000000)
|
|
|
|
bandwidth = 0x06;
|
|
|
|
else if (c->bandwidth_hz <= 7000000)
|
|
|
|
bandwidth = 0x07;
|
|
|
|
else if (c->bandwidth_hz <= 8000000)
|
|
|
|
bandwidth = 0x08;
|
|
|
|
else
|
|
|
|
bandwidth = 0x0f;
|
|
|
|
|
|
|
|
switch (c->delivery_system) {
|
2014-08-17 05:24:49 +00:00
|
|
|
case SYS_ATSC:
|
|
|
|
delivery_system = 0x00;
|
2015-02-28 15:25:23 +00:00
|
|
|
if_frequency = 3250000;
|
2014-08-17 05:24:49 +00:00
|
|
|
break;
|
2014-10-30 10:43:16 +00:00
|
|
|
case SYS_DVBC_ANNEX_B:
|
|
|
|
delivery_system = 0x10;
|
2015-02-28 15:25:23 +00:00
|
|
|
if_frequency = 4000000;
|
2014-10-30 10:43:16 +00:00
|
|
|
break;
|
2014-07-13 13:52:21 +00:00
|
|
|
case SYS_DVBT:
|
|
|
|
case SYS_DVBT2: /* it seems DVB-T and DVB-T2 both are 0x20 here */
|
|
|
|
delivery_system = 0x20;
|
|
|
|
break;
|
|
|
|
case SYS_DVBC_ANNEX_A:
|
|
|
|
delivery_system = 0x30;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(cmd.args, "\x14\x00\x03\x07\x00\x00", 6);
|
|
|
|
cmd.args[4] = delivery_system | bandwidth;
|
2014-12-05 20:46:30 +00:00
|
|
|
if (dev->inversion)
|
2014-07-15 19:34:36 +00:00
|
|
|
cmd.args[5] = 0x01;
|
2014-07-13 13:52:21 +00:00
|
|
|
cmd.wlen = 6;
|
2014-09-11 20:01:38 +00:00
|
|
|
cmd.rlen = 4;
|
2014-12-06 17:40:06 +00:00
|
|
|
ret = si2157_cmd_execute(client, &cmd);
|
2014-09-11 20:01:38 +00:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2014-12-05 20:46:30 +00:00
|
|
|
if (dev->chiptype == SI2157_CHIPTYPE_SI2146)
|
2014-11-24 06:57:33 +00:00
|
|
|
memcpy(cmd.args, "\x14\x00\x02\x07\x00\x01", 6);
|
|
|
|
else
|
2015-05-05 16:54:17 +00:00
|
|
|
memcpy(cmd.args, "\x14\x00\x02\x07\x00\x00", 6);
|
|
|
|
cmd.args[4] = dev->if_port;
|
2014-09-11 20:01:38 +00:00
|
|
|
cmd.wlen = 6;
|
|
|
|
cmd.rlen = 4;
|
2014-12-06 17:40:06 +00:00
|
|
|
ret = si2157_cmd_execute(client, &cmd);
|
2014-07-13 13:52:21 +00:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
2015-02-28 15:25:23 +00:00
|
|
|
/* set if frequency if needed */
|
|
|
|
if (if_frequency != dev->if_frequency) {
|
|
|
|
memcpy(cmd.args, "\x14\x00\x06\x07", 4);
|
|
|
|
cmd.args[4] = (if_frequency / 1000) & 0xff;
|
|
|
|
cmd.args[5] = ((if_frequency / 1000) >> 8) & 0xff;
|
|
|
|
cmd.wlen = 6;
|
|
|
|
cmd.rlen = 4;
|
|
|
|
ret = si2157_cmd_execute(client, &cmd);
|
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
dev->if_frequency = if_frequency;
|
|
|
|
}
|
|
|
|
|
2014-04-11 00:58:10 +00:00
|
|
|
/* set frequency */
|
2014-07-13 13:52:19 +00:00
|
|
|
memcpy(cmd.args, "\x41\x00\x00\x00\x00\x00\x00\x00", 8);
|
2014-04-11 00:58:10 +00:00
|
|
|
cmd.args[4] = (c->frequency >> 0) & 0xff;
|
|
|
|
cmd.args[5] = (c->frequency >> 8) & 0xff;
|
|
|
|
cmd.args[6] = (c->frequency >> 16) & 0xff;
|
|
|
|
cmd.args[7] = (c->frequency >> 24) & 0xff;
|
2014-07-10 09:02:53 +00:00
|
|
|
cmd.wlen = 8;
|
|
|
|
cmd.rlen = 1;
|
2014-12-06 17:40:06 +00:00
|
|
|
ret = si2157_cmd_execute(client, &cmd);
|
2014-04-11 00:58:10 +00:00
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
err:
|
2014-12-06 17:40:06 +00:00
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
2014-04-11 00:58:10 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2014-07-15 07:58:40 +00:00
|
|
|
static int si2157_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
|
|
|
|
{
|
2015-02-28 15:25:23 +00:00
|
|
|
struct i2c_client *client = fe->tuner_priv;
|
|
|
|
struct si2157_dev *dev = i2c_get_clientdata(client);
|
|
|
|
|
|
|
|
*frequency = dev->if_frequency;
|
2014-07-15 07:58:40 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-07-18 05:41:12 +00:00
|
|
|
static const struct dvb_tuner_ops si2157_ops = {
|
2014-04-11 00:58:10 +00:00
|
|
|
.info = {
|
2017-02-17 00:55:31 +00:00
|
|
|
.name = "Silicon Labs Si2141/Si2146/2147/2148/2157/2158",
|
2016-01-04 01:31:26 +00:00
|
|
|
.frequency_min = 42000000,
|
|
|
|
.frequency_max = 870000000,
|
2014-04-11 00:58:10 +00:00
|
|
|
},
|
|
|
|
|
|
|
|
.init = si2157_init,
|
|
|
|
.sleep = si2157_sleep,
|
|
|
|
.set_params = si2157_set_params,
|
2014-07-15 07:58:40 +00:00
|
|
|
.get_if_frequency = si2157_get_if_frequency,
|
2014-04-11 00:58:10 +00:00
|
|
|
};
|
|
|
|
|
2014-09-07 14:20:34 +00:00
|
|
|
static void si2157_stat_work(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct si2157_dev *dev = container_of(work, struct si2157_dev, stat_work.work);
|
|
|
|
struct dvb_frontend *fe = dev->fe;
|
|
|
|
struct i2c_client *client = fe->tuner_priv;
|
|
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
|
|
|
struct si2157_cmd cmd;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
dev_dbg(&client->dev, "\n");
|
|
|
|
|
|
|
|
memcpy(cmd.args, "\x42\x00", 2);
|
|
|
|
cmd.wlen = 2;
|
|
|
|
cmd.rlen = 12;
|
|
|
|
ret = si2157_cmd_execute(client, &cmd);
|
|
|
|
if (ret)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
c->strength.stat[0].scale = FE_SCALE_DECIBEL;
|
|
|
|
c->strength.stat[0].svalue = (s8) cmd.args[3] * 1000;
|
|
|
|
|
|
|
|
schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000));
|
|
|
|
return;
|
|
|
|
err:
|
|
|
|
c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
|
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
|
|
|
}
|
|
|
|
|
2014-04-11 00:58:10 +00:00
|
|
|
static int si2157_probe(struct i2c_client *client,
|
2016-02-11 20:06:36 +00:00
|
|
|
const struct i2c_device_id *id)
|
2014-04-11 00:58:10 +00:00
|
|
|
{
|
|
|
|
struct si2157_config *cfg = client->dev.platform_data;
|
|
|
|
struct dvb_frontend *fe = cfg->fe;
|
2014-12-05 20:46:30 +00:00
|
|
|
struct si2157_dev *dev;
|
2014-04-11 00:58:10 +00:00
|
|
|
struct si2157_cmd cmd;
|
|
|
|
int ret;
|
|
|
|
|
2014-12-05 20:46:30 +00:00
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
|
|
if (!dev) {
|
2014-04-11 00:58:10 +00:00
|
|
|
ret = -ENOMEM;
|
2014-08-05 12:03:54 +00:00
|
|
|
dev_err(&client->dev, "kzalloc() failed\n");
|
2014-04-11 00:58:10 +00:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
2014-12-06 17:40:06 +00:00
|
|
|
i2c_set_clientdata(client, dev);
|
2014-12-05 20:46:30 +00:00
|
|
|
dev->fe = cfg->fe;
|
|
|
|
dev->inversion = cfg->inversion;
|
2015-05-05 16:54:17 +00:00
|
|
|
dev->if_port = cfg->if_port;
|
2014-12-05 20:46:30 +00:00
|
|
|
dev->chiptype = (u8)id->driver_data;
|
2015-02-28 15:25:23 +00:00
|
|
|
dev->if_frequency = 5000000; /* default value of property 0x0706 */
|
2014-12-05 20:46:30 +00:00
|
|
|
mutex_init(&dev->i2c_mutex);
|
2014-09-07 14:20:34 +00:00
|
|
|
INIT_DELAYED_WORK(&dev->stat_work, si2157_stat_work);
|
2014-04-11 00:58:10 +00:00
|
|
|
|
|
|
|
/* check if the tuner is there */
|
2014-07-10 09:02:53 +00:00
|
|
|
cmd.wlen = 0;
|
|
|
|
cmd.rlen = 1;
|
2014-12-06 17:40:06 +00:00
|
|
|
ret = si2157_cmd_execute(client, &cmd);
|
2014-04-11 00:58:10 +00:00
|
|
|
if (ret)
|
2014-12-06 18:13:31 +00:00
|
|
|
goto err_kfree;
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2014-12-05 20:46:30 +00:00
|
|
|
memcpy(&fe->ops.tuner_ops, &si2157_ops, sizeof(struct dvb_tuner_ops));
|
2014-12-06 17:40:06 +00:00
|
|
|
fe->tuner_priv = client;
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2016-02-11 20:06:36 +00:00
|
|
|
#ifdef CONFIG_MEDIA_CONTROLLER
|
|
|
|
if (cfg->mdev) {
|
|
|
|
dev->mdev = cfg->mdev;
|
|
|
|
|
|
|
|
dev->ent.name = KBUILD_MODNAME;
|
|
|
|
dev->ent.function = MEDIA_ENT_F_TUNER;
|
|
|
|
|
|
|
|
dev->pad[TUNER_PAD_RF_INPUT].flags = MEDIA_PAD_FL_SINK;
|
|
|
|
dev->pad[TUNER_PAD_OUTPUT].flags = MEDIA_PAD_FL_SOURCE;
|
|
|
|
dev->pad[TUNER_PAD_AUD_OUT].flags = MEDIA_PAD_FL_SOURCE;
|
|
|
|
|
|
|
|
ret = media_entity_pads_init(&dev->ent, TUNER_NUM_PADS,
|
|
|
|
&dev->pad[0]);
|
|
|
|
|
|
|
|
if (ret)
|
|
|
|
goto err_kfree;
|
|
|
|
|
|
|
|
ret = media_device_register_entity(cfg->mdev, &dev->ent);
|
|
|
|
if (ret) {
|
|
|
|
media_entity_cleanup(&dev->ent);
|
|
|
|
goto err_kfree;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2014-12-06 17:40:06 +00:00
|
|
|
dev_info(&client->dev, "Silicon Labs %s successfully attached\n",
|
2017-02-17 00:55:31 +00:00
|
|
|
dev->chiptype == SI2157_CHIPTYPE_SI2141 ? "Si2141" :
|
2017-04-06 12:17:42 +00:00
|
|
|
dev->chiptype == SI2157_CHIPTYPE_SI2146 ?
|
2014-11-14 21:19:37 +00:00
|
|
|
"Si2146" : "Si2147/2148/2157/2158");
|
2014-11-24 06:57:33 +00:00
|
|
|
|
2014-04-11 00:58:10 +00:00
|
|
|
return 0;
|
2014-12-06 18:13:31 +00:00
|
|
|
|
|
|
|
err_kfree:
|
|
|
|
kfree(dev);
|
2014-04-11 00:58:10 +00:00
|
|
|
err:
|
2014-08-05 12:03:54 +00:00
|
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
2014-04-11 00:58:10 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int si2157_remove(struct i2c_client *client)
|
|
|
|
{
|
2014-12-05 20:46:30 +00:00
|
|
|
struct si2157_dev *dev = i2c_get_clientdata(client);
|
|
|
|
struct dvb_frontend *fe = dev->fe;
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2014-08-05 12:03:54 +00:00
|
|
|
dev_dbg(&client->dev, "\n");
|
2014-04-11 00:58:10 +00:00
|
|
|
|
2016-01-09 20:18:43 +00:00
|
|
|
/* stop statistics polling */
|
|
|
|
cancel_delayed_work_sync(&dev->stat_work);
|
|
|
|
|
2016-02-11 20:06:36 +00:00
|
|
|
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
|
|
|
|
if (dev->mdev)
|
|
|
|
media_device_unregister_entity(&dev->ent);
|
|
|
|
#endif
|
|
|
|
|
2014-04-11 00:58:10 +00:00
|
|
|
memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
|
|
|
|
fe->tuner_priv = NULL;
|
2014-12-05 20:46:30 +00:00
|
|
|
kfree(dev);
|
2014-04-11 00:58:10 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-12-06 18:07:45 +00:00
|
|
|
static const struct i2c_device_id si2157_id_table[] = {
|
|
|
|
{"si2157", SI2157_CHIPTYPE_SI2157},
|
|
|
|
{"si2146", SI2157_CHIPTYPE_SI2146},
|
2017-02-17 00:55:31 +00:00
|
|
|
{"si2141", SI2157_CHIPTYPE_SI2141},
|
2014-04-11 00:58:10 +00:00
|
|
|
{}
|
|
|
|
};
|
2014-12-06 18:07:45 +00:00
|
|
|
MODULE_DEVICE_TABLE(i2c, si2157_id_table);
|
2014-04-11 00:58:10 +00:00
|
|
|
|
|
|
|
static struct i2c_driver si2157_driver = {
|
|
|
|
.driver = {
|
2018-01-04 11:47:28 +00:00
|
|
|
.name = "si2157",
|
2016-06-29 23:38:19 +00:00
|
|
|
.suppress_bind_attrs = true,
|
2014-04-11 00:58:10 +00:00
|
|
|
},
|
|
|
|
.probe = si2157_probe,
|
|
|
|
.remove = si2157_remove,
|
2014-12-06 18:07:45 +00:00
|
|
|
.id_table = si2157_id_table,
|
2014-04-11 00:58:10 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
module_i2c_driver(si2157_driver);
|
|
|
|
|
2017-02-17 00:55:31 +00:00
|
|
|
MODULE_DESCRIPTION("Silicon Labs Si2141/Si2146/2147/2148/2157/2158 silicon tuner driver");
|
2014-04-11 00:58:10 +00:00
|
|
|
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
|
|
|
|
MODULE_LICENSE("GPL");
|
2014-07-13 19:13:49 +00:00
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MODULE_FIRMWARE(SI2158_A20_FIRMWARE);
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2017-02-17 00:55:31 +00:00
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MODULE_FIRMWARE(SI2141_A10_FIRMWARE);
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