![Mauro Carvalho Chehab](/assets/img/avatar_default.png)
This script was moved out of Documentation/dvb, but the links weren't updated. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
1141 lines
28 KiB
C
1141 lines
28 KiB
C
/*
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* DVB USB framework
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*
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* Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@posteo.de>
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* Copyright (C) 2012 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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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "dvb_usb_common.h"
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#include <media/media-device.h>
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static int dvb_usbv2_disable_rc_polling;
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module_param_named(disable_rc_polling, dvb_usbv2_disable_rc_polling, int, 0644);
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MODULE_PARM_DESC(disable_rc_polling,
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"disable remote control polling (default: 0)");
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static int dvb_usb_force_pid_filter_usage;
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module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage,
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int, 0444);
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MODULE_PARM_DESC(force_pid_filter_usage,
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"force all DVB USB devices to use a PID filter, if any (default: 0)");
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static int dvb_usbv2_download_firmware(struct dvb_usb_device *d,
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const char *name)
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{
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int ret;
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const struct firmware *fw;
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dev_dbg(&d->udev->dev, "%s:\n", __func__);
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if (!d->props->download_firmware) {
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ret = -EINVAL;
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goto err;
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}
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ret = request_firmware(&fw, name, &d->udev->dev);
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if (ret < 0) {
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dev_err(&d->udev->dev,
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"%s: Did not find the firmware file '%s' (status %d). You can use <kernel_dir>/scripts/get_dvb_firmware to get the firmware\n",
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KBUILD_MODNAME, name, ret);
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goto err;
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}
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dev_info(&d->udev->dev, "%s: downloading firmware from file '%s'\n",
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KBUILD_MODNAME, name);
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ret = d->props->download_firmware(d, fw);
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release_firmware(fw);
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if (ret < 0)
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goto err;
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return ret;
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err:
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dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
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return ret;
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}
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static int dvb_usbv2_i2c_init(struct dvb_usb_device *d)
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{
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int ret;
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dev_dbg(&d->udev->dev, "%s:\n", __func__);
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if (!d->props->i2c_algo)
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return 0;
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strlcpy(d->i2c_adap.name, d->name, sizeof(d->i2c_adap.name));
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d->i2c_adap.algo = d->props->i2c_algo;
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d->i2c_adap.dev.parent = &d->udev->dev;
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i2c_set_adapdata(&d->i2c_adap, d);
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ret = i2c_add_adapter(&d->i2c_adap);
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if (ret < 0) {
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d->i2c_adap.algo = NULL;
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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(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
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return ret;
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}
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static int dvb_usbv2_i2c_exit(struct dvb_usb_device *d)
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{
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dev_dbg(&d->udev->dev, "%s:\n", __func__);
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if (d->i2c_adap.algo)
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i2c_del_adapter(&d->i2c_adap);
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return 0;
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}
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#if IS_ENABLED(CONFIG_RC_CORE)
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static void dvb_usb_read_remote_control(struct work_struct *work)
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{
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struct dvb_usb_device *d = container_of(work,
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struct dvb_usb_device, rc_query_work.work);
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int ret;
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/*
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* When the parameter has been set to 1 via sysfs while the
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* driver was running, or when bulk mode is enabled after IR init.
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*/
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if (dvb_usbv2_disable_rc_polling || d->rc.bulk_mode) {
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d->rc_polling_active = false;
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return;
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}
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ret = d->rc.query(d);
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if (ret < 0) {
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dev_err(&d->udev->dev, "%s: rc.query() failed=%d\n",
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KBUILD_MODNAME, ret);
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d->rc_polling_active = false;
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return; /* stop polling */
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}
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schedule_delayed_work(&d->rc_query_work,
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msecs_to_jiffies(d->rc.interval));
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}
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static int dvb_usbv2_remote_init(struct dvb_usb_device *d)
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{
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int ret;
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struct rc_dev *dev;
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dev_dbg(&d->udev->dev, "%s:\n", __func__);
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if (dvb_usbv2_disable_rc_polling || !d->props->get_rc_config)
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return 0;
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d->rc.map_name = d->rc_map;
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ret = d->props->get_rc_config(d, &d->rc);
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if (ret < 0)
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goto err;
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/* disable rc when there is no keymap defined */
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if (!d->rc.map_name)
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return 0;
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dev = rc_allocate_device(d->rc.driver_type);
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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->dev.parent = &d->udev->dev;
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dev->device_name = d->name;
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usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys));
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strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys));
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dev->input_phys = d->rc_phys;
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usb_to_input_id(d->udev, &dev->input_id);
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dev->driver_name = d->props->driver_name;
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dev->map_name = d->rc.map_name;
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dev->allowed_protocols = d->rc.allowed_protos;
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dev->change_protocol = d->rc.change_protocol;
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dev->priv = d;
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ret = rc_register_device(dev);
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if (ret < 0) {
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rc_free_device(dev);
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goto err;
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}
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d->rc_dev = dev;
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/* start polling if needed */
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if (d->rc.query && !d->rc.bulk_mode) {
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/* initialize a work queue for handling polling */
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INIT_DELAYED_WORK(&d->rc_query_work,
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dvb_usb_read_remote_control);
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dev_info(&d->udev->dev,
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"%s: schedule remote query interval to %d msecs\n",
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KBUILD_MODNAME, d->rc.interval);
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schedule_delayed_work(&d->rc_query_work,
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msecs_to_jiffies(d->rc.interval));
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d->rc_polling_active = true;
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}
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return 0;
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err:
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dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
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return ret;
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}
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static int dvb_usbv2_remote_exit(struct dvb_usb_device *d)
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{
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dev_dbg(&d->udev->dev, "%s:\n", __func__);
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if (d->rc_dev) {
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cancel_delayed_work_sync(&d->rc_query_work);
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rc_unregister_device(d->rc_dev);
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d->rc_dev = NULL;
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}
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return 0;
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}
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#else
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#define dvb_usbv2_remote_init(args...) 0
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#define dvb_usbv2_remote_exit(args...)
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#endif
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static void dvb_usb_data_complete(struct usb_data_stream *stream, u8 *buf,
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size_t len)
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{
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struct dvb_usb_adapter *adap = stream->user_priv;
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dvb_dmx_swfilter(&adap->demux, buf, len);
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}
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static void dvb_usb_data_complete_204(struct usb_data_stream *stream, u8 *buf,
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size_t len)
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{
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struct dvb_usb_adapter *adap = stream->user_priv;
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dvb_dmx_swfilter_204(&adap->demux, buf, len);
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}
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static void dvb_usb_data_complete_raw(struct usb_data_stream *stream, u8 *buf,
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size_t len)
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{
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struct dvb_usb_adapter *adap = stream->user_priv;
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dvb_dmx_swfilter_raw(&adap->demux, buf, len);
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}
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static int dvb_usbv2_adapter_stream_init(struct dvb_usb_adapter *adap)
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{
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dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
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adap->id);
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adap->stream.udev = adap_to_d(adap)->udev;
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adap->stream.user_priv = adap;
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adap->stream.complete = dvb_usb_data_complete;
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return usb_urb_initv2(&adap->stream, &adap->props->stream);
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}
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static int dvb_usbv2_adapter_stream_exit(struct dvb_usb_adapter *adap)
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{
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dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
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adap->id);
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return usb_urb_exitv2(&adap->stream);
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}
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static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
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{
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struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
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struct dvb_usb_device *d = adap_to_d(adap);
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int ret = 0;
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struct usb_data_stream_properties stream_props;
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dev_dbg(&d->udev->dev,
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"%s: adap=%d active_fe=%d feed_type=%d setting pid [%s]: %04x (%04d) at index %d\n",
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__func__, adap->id, adap->active_fe, dvbdmxfeed->type,
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adap->pid_filtering ? "yes" : "no", dvbdmxfeed->pid,
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dvbdmxfeed->pid, dvbdmxfeed->index);
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/* wait init is done */
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wait_on_bit(&adap->state_bits, ADAP_INIT, TASK_UNINTERRUPTIBLE);
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if (adap->active_fe == -1)
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return -EINVAL;
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/* skip feed setup if we are already feeding */
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if (adap->feed_count++ > 0)
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goto skip_feed_start;
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/* set 'streaming' status bit */
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set_bit(ADAP_STREAMING, &adap->state_bits);
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/* resolve input and output streaming parameters */
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if (d->props->get_stream_config) {
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memcpy(&stream_props, &adap->props->stream,
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sizeof(struct usb_data_stream_properties));
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ret = d->props->get_stream_config(adap->fe[adap->active_fe],
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&adap->ts_type, &stream_props);
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if (ret)
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dev_err(&d->udev->dev,
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"%s: get_stream_config() failed=%d\n",
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KBUILD_MODNAME, ret);
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} else {
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stream_props = adap->props->stream;
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}
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switch (adap->ts_type) {
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case DVB_USB_FE_TS_TYPE_204:
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adap->stream.complete = dvb_usb_data_complete_204;
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break;
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case DVB_USB_FE_TS_TYPE_RAW:
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adap->stream.complete = dvb_usb_data_complete_raw;
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break;
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case DVB_USB_FE_TS_TYPE_188:
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default:
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adap->stream.complete = dvb_usb_data_complete;
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break;
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}
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/* submit USB streaming packets */
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usb_urb_submitv2(&adap->stream, &stream_props);
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/* enable HW PID filter */
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if (adap->pid_filtering && adap->props->pid_filter_ctrl) {
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ret = adap->props->pid_filter_ctrl(adap, 1);
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if (ret)
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dev_err(&d->udev->dev,
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"%s: pid_filter_ctrl() failed=%d\n",
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KBUILD_MODNAME, ret);
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}
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/* ask device to start streaming */
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if (d->props->streaming_ctrl) {
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ret = d->props->streaming_ctrl(adap->fe[adap->active_fe], 1);
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if (ret)
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dev_err(&d->udev->dev,
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"%s: streaming_ctrl() failed=%d\n",
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KBUILD_MODNAME, ret);
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}
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skip_feed_start:
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/* add PID to device HW PID filter */
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if (adap->pid_filtering && adap->props->pid_filter) {
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ret = adap->props->pid_filter(adap, dvbdmxfeed->index,
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dvbdmxfeed->pid, 1);
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if (ret)
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dev_err(&d->udev->dev, "%s: pid_filter() failed=%d\n",
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KBUILD_MODNAME, ret);
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}
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if (ret)
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dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
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return ret;
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}
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static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
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{
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struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
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struct dvb_usb_device *d = adap_to_d(adap);
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int ret = 0;
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dev_dbg(&d->udev->dev,
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"%s: adap=%d active_fe=%d feed_type=%d setting pid [%s]: %04x (%04d) at index %d\n",
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__func__, adap->id, adap->active_fe, dvbdmxfeed->type,
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adap->pid_filtering ? "yes" : "no", dvbdmxfeed->pid,
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dvbdmxfeed->pid, dvbdmxfeed->index);
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if (adap->active_fe == -1)
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return -EINVAL;
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/* remove PID from device HW PID filter */
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if (adap->pid_filtering && adap->props->pid_filter) {
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ret = adap->props->pid_filter(adap, dvbdmxfeed->index,
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dvbdmxfeed->pid, 0);
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if (ret)
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dev_err(&d->udev->dev, "%s: pid_filter() failed=%d\n",
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KBUILD_MODNAME, ret);
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}
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/* we cannot stop streaming until last PID is removed */
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if (--adap->feed_count > 0)
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goto skip_feed_stop;
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/* ask device to stop streaming */
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if (d->props->streaming_ctrl) {
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ret = d->props->streaming_ctrl(adap->fe[adap->active_fe], 0);
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if (ret)
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dev_err(&d->udev->dev,
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"%s: streaming_ctrl() failed=%d\n",
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KBUILD_MODNAME, ret);
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}
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/* disable HW PID filter */
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if (adap->pid_filtering && adap->props->pid_filter_ctrl) {
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ret = adap->props->pid_filter_ctrl(adap, 0);
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if (ret)
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dev_err(&d->udev->dev,
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"%s: pid_filter_ctrl() failed=%d\n",
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KBUILD_MODNAME, ret);
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}
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|
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/* kill USB streaming packets */
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usb_urb_killv2(&adap->stream);
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|
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/* clear 'streaming' status bit */
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clear_bit(ADAP_STREAMING, &adap->state_bits);
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smp_mb__after_atomic();
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wake_up_bit(&adap->state_bits, ADAP_STREAMING);
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skip_feed_stop:
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if (ret)
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dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
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return ret;
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}
|
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|
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static int dvb_usbv2_media_device_init(struct dvb_usb_adapter *adap)
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{
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#ifdef CONFIG_MEDIA_CONTROLLER_DVB
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struct media_device *mdev;
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struct dvb_usb_device *d = adap_to_d(adap);
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struct usb_device *udev = d->udev;
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mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
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if (!mdev)
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return -ENOMEM;
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|
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media_device_usb_init(mdev, udev, d->name);
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|
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dvb_register_media_controller(&adap->dvb_adap, mdev);
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|
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dev_info(&d->udev->dev, "media controller created\n");
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#endif
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return 0;
|
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}
|
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|
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static int dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)
|
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{
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#ifdef CONFIG_MEDIA_CONTROLLER_DVB
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return media_device_register(adap->dvb_adap.mdev);
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#else
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return 0;
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#endif
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}
|
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|
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static void dvb_usbv2_media_device_unregister(struct dvb_usb_adapter *adap)
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{
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#ifdef CONFIG_MEDIA_CONTROLLER_DVB
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if (!adap->dvb_adap.mdev)
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return;
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|
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media_device_unregister(adap->dvb_adap.mdev);
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media_device_cleanup(adap->dvb_adap.mdev);
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kfree(adap->dvb_adap.mdev);
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adap->dvb_adap.mdev = NULL;
|
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|
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#endif
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}
|
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|
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static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
|
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{
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int ret;
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struct dvb_usb_device *d = adap_to_d(adap);
|
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dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);
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|
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ret = dvb_register_adapter(&adap->dvb_adap, d->name, d->props->owner,
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&d->udev->dev, d->props->adapter_nr);
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if (ret < 0) {
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dev_dbg(&d->udev->dev, "%s: dvb_register_adapter() failed=%d\n",
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__func__, ret);
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goto err_dvb_register_adapter;
|
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}
|
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|
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adap->dvb_adap.priv = adap;
|
|
|
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ret = dvb_usbv2_media_device_init(adap);
|
|
if (ret < 0) {
|
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dev_dbg(&d->udev->dev, "%s: dvb_usbv2_media_device_init() failed=%d\n",
|
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__func__, ret);
|
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goto err_dvb_register_mc;
|
|
}
|
|
|
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if (d->props->read_mac_address) {
|
|
ret = d->props->read_mac_address(adap,
|
|
adap->dvb_adap.proposed_mac);
|
|
if (ret < 0)
|
|
goto err_dvb_dmx_init;
|
|
|
|
dev_info(&d->udev->dev, "%s: MAC address: %pM\n",
|
|
KBUILD_MODNAME, adap->dvb_adap.proposed_mac);
|
|
}
|
|
|
|
adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
|
|
adap->demux.priv = adap;
|
|
adap->demux.filternum = 0;
|
|
adap->demux.filternum = adap->max_feed_count;
|
|
adap->demux.feednum = adap->demux.filternum;
|
|
adap->demux.start_feed = dvb_usb_start_feed;
|
|
adap->demux.stop_feed = dvb_usb_stop_feed;
|
|
adap->demux.write_to_decoder = NULL;
|
|
ret = dvb_dmx_init(&adap->demux);
|
|
if (ret < 0) {
|
|
dev_err(&d->udev->dev, "%s: dvb_dmx_init() failed=%d\n",
|
|
KBUILD_MODNAME, ret);
|
|
goto err_dvb_dmx_init;
|
|
}
|
|
|
|
adap->dmxdev.filternum = adap->demux.filternum;
|
|
adap->dmxdev.demux = &adap->demux.dmx;
|
|
adap->dmxdev.capabilities = 0;
|
|
ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap);
|
|
if (ret < 0) {
|
|
dev_err(&d->udev->dev, "%s: dvb_dmxdev_init() failed=%d\n",
|
|
KBUILD_MODNAME, ret);
|
|
goto err_dvb_dmxdev_init;
|
|
}
|
|
|
|
ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx);
|
|
if (ret < 0) {
|
|
dev_err(&d->udev->dev, "%s: dvb_net_init() failed=%d\n",
|
|
KBUILD_MODNAME, ret);
|
|
goto err_dvb_net_init;
|
|
}
|
|
|
|
return 0;
|
|
err_dvb_net_init:
|
|
dvb_dmxdev_release(&adap->dmxdev);
|
|
err_dvb_dmxdev_init:
|
|
dvb_dmx_release(&adap->demux);
|
|
err_dvb_dmx_init:
|
|
dvb_usbv2_media_device_unregister(adap);
|
|
err_dvb_register_mc:
|
|
dvb_unregister_adapter(&adap->dvb_adap);
|
|
err_dvb_register_adapter:
|
|
adap->dvb_adap.priv = NULL;
|
|
return ret;
|
|
}
|
|
|
|
static int dvb_usbv2_adapter_dvb_exit(struct dvb_usb_adapter *adap)
|
|
{
|
|
dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
|
|
adap->id);
|
|
|
|
if (adap->dvb_adap.priv) {
|
|
dvb_net_release(&adap->dvb_net);
|
|
adap->demux.dmx.close(&adap->demux.dmx);
|
|
dvb_dmxdev_release(&adap->dmxdev);
|
|
dvb_dmx_release(&adap->demux);
|
|
dvb_unregister_adapter(&adap->dvb_adap);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dvb_usbv2_device_power_ctrl(struct dvb_usb_device *d, int onoff)
|
|
{
|
|
int ret;
|
|
|
|
if (onoff)
|
|
d->powered++;
|
|
else
|
|
d->powered--;
|
|
|
|
if (d->powered == 0 || (onoff && d->powered == 1)) {
|
|
/* when switching from 1 to 0 or from 0 to 1 */
|
|
dev_dbg(&d->udev->dev, "%s: power=%d\n", __func__, onoff);
|
|
if (d->props->power_ctrl) {
|
|
ret = d->props->power_ctrl(d, onoff);
|
|
if (ret < 0)
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
static int dvb_usb_fe_init(struct dvb_frontend *fe)
|
|
{
|
|
int ret;
|
|
struct dvb_usb_adapter *adap = fe->dvb->priv;
|
|
struct dvb_usb_device *d = adap_to_d(adap);
|
|
dev_dbg(&d->udev->dev, "%s: adap=%d fe=%d\n", __func__, adap->id,
|
|
fe->id);
|
|
|
|
if (!adap->suspend_resume_active) {
|
|
adap->active_fe = fe->id;
|
|
set_bit(ADAP_INIT, &adap->state_bits);
|
|
}
|
|
|
|
ret = dvb_usbv2_device_power_ctrl(d, 1);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
if (d->props->frontend_ctrl) {
|
|
ret = d->props->frontend_ctrl(fe, 1);
|
|
if (ret < 0)
|
|
goto err;
|
|
}
|
|
|
|
if (adap->fe_init[fe->id]) {
|
|
ret = adap->fe_init[fe->id](fe);
|
|
if (ret < 0)
|
|
goto err;
|
|
}
|
|
err:
|
|
if (!adap->suspend_resume_active) {
|
|
clear_bit(ADAP_INIT, &adap->state_bits);
|
|
smp_mb__after_atomic();
|
|
wake_up_bit(&adap->state_bits, ADAP_INIT);
|
|
}
|
|
|
|
dev_dbg(&d->udev->dev, "%s: ret=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
|
|
{
|
|
int ret;
|
|
struct dvb_usb_adapter *adap = fe->dvb->priv;
|
|
struct dvb_usb_device *d = adap_to_d(adap);
|
|
dev_dbg(&d->udev->dev, "%s: adap=%d fe=%d\n", __func__, adap->id,
|
|
fe->id);
|
|
|
|
if (!adap->suspend_resume_active) {
|
|
set_bit(ADAP_SLEEP, &adap->state_bits);
|
|
wait_on_bit(&adap->state_bits, ADAP_STREAMING,
|
|
TASK_UNINTERRUPTIBLE);
|
|
}
|
|
|
|
if (adap->fe_sleep[fe->id]) {
|
|
ret = adap->fe_sleep[fe->id](fe);
|
|
if (ret < 0)
|
|
goto err;
|
|
}
|
|
|
|
if (d->props->frontend_ctrl) {
|
|
ret = d->props->frontend_ctrl(fe, 0);
|
|
if (ret < 0)
|
|
goto err;
|
|
}
|
|
|
|
ret = dvb_usbv2_device_power_ctrl(d, 0);
|
|
|
|
err:
|
|
if (!adap->suspend_resume_active) {
|
|
adap->active_fe = -1;
|
|
clear_bit(ADAP_SLEEP, &adap->state_bits);
|
|
smp_mb__after_atomic();
|
|
wake_up_bit(&adap->state_bits, ADAP_SLEEP);
|
|
}
|
|
|
|
dev_dbg(&d->udev->dev, "%s: ret=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
static int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap)
|
|
{
|
|
int ret, i, count_registered = 0;
|
|
struct dvb_usb_device *d = adap_to_d(adap);
|
|
dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);
|
|
|
|
memset(adap->fe, 0, sizeof(adap->fe));
|
|
adap->active_fe = -1;
|
|
|
|
if (d->props->frontend_attach) {
|
|
ret = d->props->frontend_attach(adap);
|
|
if (ret < 0) {
|
|
dev_dbg(&d->udev->dev,
|
|
"%s: frontend_attach() failed=%d\n",
|
|
__func__, ret);
|
|
goto err_dvb_frontend_detach;
|
|
}
|
|
} else {
|
|
dev_dbg(&d->udev->dev, "%s: frontend_attach() do not exists\n",
|
|
__func__);
|
|
ret = 0;
|
|
goto err;
|
|
}
|
|
|
|
for (i = 0; i < MAX_NO_OF_FE_PER_ADAP && adap->fe[i]; i++) {
|
|
adap->fe[i]->id = i;
|
|
/* re-assign sleep and wakeup functions */
|
|
adap->fe_init[i] = adap->fe[i]->ops.init;
|
|
adap->fe[i]->ops.init = dvb_usb_fe_init;
|
|
adap->fe_sleep[i] = adap->fe[i]->ops.sleep;
|
|
adap->fe[i]->ops.sleep = dvb_usb_fe_sleep;
|
|
|
|
ret = dvb_register_frontend(&adap->dvb_adap, adap->fe[i]);
|
|
if (ret < 0) {
|
|
dev_err(&d->udev->dev,
|
|
"%s: frontend%d registration failed\n",
|
|
KBUILD_MODNAME, i);
|
|
goto err_dvb_unregister_frontend;
|
|
}
|
|
|
|
count_registered++;
|
|
}
|
|
|
|
if (d->props->tuner_attach) {
|
|
ret = d->props->tuner_attach(adap);
|
|
if (ret < 0) {
|
|
dev_dbg(&d->udev->dev, "%s: tuner_attach() failed=%d\n",
|
|
__func__, ret);
|
|
goto err_dvb_unregister_frontend;
|
|
}
|
|
}
|
|
|
|
ret = dvb_create_media_graph(&adap->dvb_adap, true);
|
|
if (ret < 0)
|
|
goto err_dvb_unregister_frontend;
|
|
|
|
ret = dvb_usbv2_media_device_register(adap);
|
|
|
|
return ret;
|
|
|
|
err_dvb_unregister_frontend:
|
|
for (i = count_registered - 1; i >= 0; i--)
|
|
dvb_unregister_frontend(adap->fe[i]);
|
|
|
|
err_dvb_frontend_detach:
|
|
for (i = MAX_NO_OF_FE_PER_ADAP - 1; i >= 0; i--) {
|
|
if (adap->fe[i]) {
|
|
dvb_frontend_detach(adap->fe[i]);
|
|
adap->fe[i] = NULL;
|
|
}
|
|
}
|
|
|
|
err:
|
|
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
static int dvb_usbv2_adapter_frontend_exit(struct dvb_usb_adapter *adap)
|
|
{
|
|
int ret, i;
|
|
struct dvb_usb_device *d = adap_to_d(adap);
|
|
|
|
dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);
|
|
|
|
for (i = MAX_NO_OF_FE_PER_ADAP - 1; i >= 0; i--) {
|
|
if (adap->fe[i]) {
|
|
dvb_unregister_frontend(adap->fe[i]);
|
|
dvb_frontend_detach(adap->fe[i]);
|
|
}
|
|
}
|
|
|
|
if (d->props->tuner_detach) {
|
|
ret = d->props->tuner_detach(adap);
|
|
if (ret < 0) {
|
|
dev_dbg(&d->udev->dev, "%s: tuner_detach() failed=%d\n",
|
|
__func__, ret);
|
|
}
|
|
}
|
|
|
|
if (d->props->frontend_detach) {
|
|
ret = d->props->frontend_detach(adap);
|
|
if (ret < 0) {
|
|
dev_dbg(&d->udev->dev,
|
|
"%s: frontend_detach() failed=%d\n",
|
|
__func__, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dvb_usbv2_adapter_init(struct dvb_usb_device *d)
|
|
{
|
|
struct dvb_usb_adapter *adap;
|
|
int ret, i, adapter_count;
|
|
|
|
/* resolve adapter count */
|
|
adapter_count = d->props->num_adapters;
|
|
if (d->props->get_adapter_count) {
|
|
ret = d->props->get_adapter_count(d);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
adapter_count = ret;
|
|
}
|
|
|
|
for (i = 0; i < adapter_count; i++) {
|
|
adap = &d->adapter[i];
|
|
adap->id = i;
|
|
adap->props = &d->props->adapter[i];
|
|
|
|
/* speed - when running at FULL speed we need a HW PID filter */
|
|
if (d->udev->speed == USB_SPEED_FULL &&
|
|
!(adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
|
|
dev_err(&d->udev->dev,
|
|
"%s: this USB2.0 device cannot be run on a USB1.1 port (it lacks a hardware PID filter)\n",
|
|
KBUILD_MODNAME);
|
|
ret = -ENODEV;
|
|
goto err;
|
|
} else if ((d->udev->speed == USB_SPEED_FULL &&
|
|
adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
|
|
(adap->props->caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
|
|
dev_info(&d->udev->dev,
|
|
"%s: will use the device's hardware PID filter (table count: %d)\n",
|
|
KBUILD_MODNAME,
|
|
adap->props->pid_filter_count);
|
|
adap->pid_filtering = 1;
|
|
adap->max_feed_count = adap->props->pid_filter_count;
|
|
} else {
|
|
dev_info(&d->udev->dev,
|
|
"%s: will pass the complete MPEG2 transport stream to the software demuxer\n",
|
|
KBUILD_MODNAME);
|
|
adap->pid_filtering = 0;
|
|
adap->max_feed_count = 255;
|
|
}
|
|
|
|
if (!adap->pid_filtering && dvb_usb_force_pid_filter_usage &&
|
|
adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER) {
|
|
dev_info(&d->udev->dev,
|
|
"%s: PID filter enabled by module option\n",
|
|
KBUILD_MODNAME);
|
|
adap->pid_filtering = 1;
|
|
adap->max_feed_count = adap->props->pid_filter_count;
|
|
}
|
|
|
|
ret = dvb_usbv2_adapter_stream_init(adap);
|
|
if (ret)
|
|
goto err;
|
|
|
|
ret = dvb_usbv2_adapter_dvb_init(adap);
|
|
if (ret)
|
|
goto err;
|
|
|
|
ret = dvb_usbv2_adapter_frontend_init(adap);
|
|
if (ret)
|
|
goto err;
|
|
|
|
/* use exclusive FE lock if there is multiple shared FEs */
|
|
if (adap->fe[1])
|
|
adap->dvb_adap.mfe_shared = 1;
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
static int dvb_usbv2_adapter_exit(struct dvb_usb_device *d)
|
|
{
|
|
int i;
|
|
dev_dbg(&d->udev->dev, "%s:\n", __func__);
|
|
|
|
for (i = MAX_NO_OF_ADAPTER_PER_DEVICE - 1; i >= 0; i--) {
|
|
if (d->adapter[i].props) {
|
|
dvb_usbv2_adapter_dvb_exit(&d->adapter[i]);
|
|
dvb_usbv2_adapter_stream_exit(&d->adapter[i]);
|
|
dvb_usbv2_adapter_frontend_exit(&d->adapter[i]);
|
|
dvb_usbv2_media_device_unregister(&d->adapter[i]);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* general initialization functions */
|
|
static int dvb_usbv2_exit(struct dvb_usb_device *d)
|
|
{
|
|
dev_dbg(&d->udev->dev, "%s:\n", __func__);
|
|
|
|
dvb_usbv2_remote_exit(d);
|
|
dvb_usbv2_adapter_exit(d);
|
|
dvb_usbv2_i2c_exit(d);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dvb_usbv2_init(struct dvb_usb_device *d)
|
|
{
|
|
int ret;
|
|
dev_dbg(&d->udev->dev, "%s:\n", __func__);
|
|
|
|
dvb_usbv2_device_power_ctrl(d, 1);
|
|
|
|
if (d->props->read_config) {
|
|
ret = d->props->read_config(d);
|
|
if (ret < 0)
|
|
goto err;
|
|
}
|
|
|
|
ret = dvb_usbv2_i2c_init(d);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
ret = dvb_usbv2_adapter_init(d);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
if (d->props->init) {
|
|
ret = d->props->init(d);
|
|
if (ret < 0)
|
|
goto err;
|
|
}
|
|
|
|
ret = dvb_usbv2_remote_init(d);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
dvb_usbv2_device_power_ctrl(d, 0);
|
|
|
|
return 0;
|
|
err:
|
|
dvb_usbv2_device_power_ctrl(d, 0);
|
|
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
int dvb_usbv2_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
int ret;
|
|
struct dvb_usb_device *d;
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
struct dvb_usb_driver_info *driver_info =
|
|
(struct dvb_usb_driver_info *) id->driver_info;
|
|
|
|
dev_dbg(&udev->dev, "%s: bInterfaceNumber=%d\n", __func__,
|
|
intf->cur_altsetting->desc.bInterfaceNumber);
|
|
|
|
if (!id->driver_info) {
|
|
dev_err(&udev->dev, "%s: driver_info failed\n", KBUILD_MODNAME);
|
|
ret = -ENODEV;
|
|
goto err;
|
|
}
|
|
|
|
d = kzalloc(sizeof(struct dvb_usb_device), GFP_KERNEL);
|
|
if (!d) {
|
|
dev_err(&udev->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME);
|
|
ret = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
d->intf = intf;
|
|
d->name = driver_info->name;
|
|
d->rc_map = driver_info->rc_map;
|
|
d->udev = udev;
|
|
d->props = driver_info->props;
|
|
|
|
if (intf->cur_altsetting->desc.bInterfaceNumber !=
|
|
d->props->bInterfaceNumber) {
|
|
ret = -ENODEV;
|
|
goto err_kfree_d;
|
|
}
|
|
|
|
mutex_init(&d->usb_mutex);
|
|
mutex_init(&d->i2c_mutex);
|
|
|
|
if (d->props->size_of_priv) {
|
|
d->priv = kzalloc(d->props->size_of_priv, GFP_KERNEL);
|
|
if (!d->priv) {
|
|
dev_err(&d->udev->dev, "%s: kzalloc() failed\n",
|
|
KBUILD_MODNAME);
|
|
ret = -ENOMEM;
|
|
goto err_kfree_d;
|
|
}
|
|
}
|
|
|
|
if (d->props->probe) {
|
|
ret = d->props->probe(d);
|
|
if (ret)
|
|
goto err_kfree_priv;
|
|
}
|
|
|
|
if (d->props->identify_state) {
|
|
const char *name = NULL;
|
|
ret = d->props->identify_state(d, &name);
|
|
if (ret == 0) {
|
|
;
|
|
} else if (ret == COLD) {
|
|
dev_info(&d->udev->dev,
|
|
"%s: found a '%s' in cold state\n",
|
|
KBUILD_MODNAME, d->name);
|
|
|
|
if (!name)
|
|
name = d->props->firmware;
|
|
|
|
ret = dvb_usbv2_download_firmware(d, name);
|
|
if (ret == 0) {
|
|
/* device is warm, continue initialization */
|
|
;
|
|
} else if (ret == RECONNECTS_USB) {
|
|
/*
|
|
* USB core will call disconnect() and then
|
|
* probe() as device reconnects itself from the
|
|
* USB bus. disconnect() will release all driver
|
|
* resources and probe() is called for 'new'
|
|
* device. As 'new' device is warm we should
|
|
* never go here again.
|
|
*/
|
|
goto exit;
|
|
} else {
|
|
goto err_free_all;
|
|
}
|
|
} else {
|
|
goto err_free_all;
|
|
}
|
|
}
|
|
|
|
dev_info(&d->udev->dev, "%s: found a '%s' in warm state\n",
|
|
KBUILD_MODNAME, d->name);
|
|
|
|
ret = dvb_usbv2_init(d);
|
|
if (ret < 0)
|
|
goto err_free_all;
|
|
|
|
dev_info(&d->udev->dev,
|
|
"%s: '%s' successfully initialized and connected\n",
|
|
KBUILD_MODNAME, d->name);
|
|
exit:
|
|
usb_set_intfdata(intf, d);
|
|
|
|
return 0;
|
|
err_free_all:
|
|
dvb_usbv2_exit(d);
|
|
if (d->props->disconnect)
|
|
d->props->disconnect(d);
|
|
err_kfree_priv:
|
|
kfree(d->priv);
|
|
err_kfree_d:
|
|
kfree(d);
|
|
err:
|
|
dev_dbg(&udev->dev, "%s: failed=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(dvb_usbv2_probe);
|
|
|
|
void dvb_usbv2_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct dvb_usb_device *d = usb_get_intfdata(intf);
|
|
const char *devname = kstrdup(dev_name(&d->udev->dev), GFP_KERNEL);
|
|
const char *drvname = d->name;
|
|
|
|
dev_dbg(&d->udev->dev, "%s: bInterfaceNumber=%d\n", __func__,
|
|
intf->cur_altsetting->desc.bInterfaceNumber);
|
|
|
|
if (d->props->exit)
|
|
d->props->exit(d);
|
|
|
|
dvb_usbv2_exit(d);
|
|
|
|
if (d->props->disconnect)
|
|
d->props->disconnect(d);
|
|
|
|
kfree(d->priv);
|
|
kfree(d);
|
|
|
|
pr_info("%s: '%s:%s' successfully deinitialized and disconnected\n",
|
|
KBUILD_MODNAME, drvname, devname);
|
|
kfree(devname);
|
|
}
|
|
EXPORT_SYMBOL(dvb_usbv2_disconnect);
|
|
|
|
int dvb_usbv2_suspend(struct usb_interface *intf, pm_message_t msg)
|
|
{
|
|
struct dvb_usb_device *d = usb_get_intfdata(intf);
|
|
int ret = 0, i, active_fe;
|
|
struct dvb_frontend *fe;
|
|
dev_dbg(&d->udev->dev, "%s:\n", __func__);
|
|
|
|
/* stop remote controller poll */
|
|
if (d->rc_polling_active)
|
|
cancel_delayed_work_sync(&d->rc_query_work);
|
|
|
|
for (i = MAX_NO_OF_ADAPTER_PER_DEVICE - 1; i >= 0; i--) {
|
|
active_fe = d->adapter[i].active_fe;
|
|
if (d->adapter[i].dvb_adap.priv && active_fe != -1) {
|
|
fe = d->adapter[i].fe[active_fe];
|
|
d->adapter[i].suspend_resume_active = true;
|
|
|
|
if (d->props->streaming_ctrl)
|
|
d->props->streaming_ctrl(fe, 0);
|
|
|
|
/* stop usb streaming */
|
|
usb_urb_killv2(&d->adapter[i].stream);
|
|
|
|
ret = dvb_frontend_suspend(fe);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(dvb_usbv2_suspend);
|
|
|
|
static int dvb_usbv2_resume_common(struct dvb_usb_device *d)
|
|
{
|
|
int ret = 0, i, active_fe;
|
|
struct dvb_frontend *fe;
|
|
dev_dbg(&d->udev->dev, "%s:\n", __func__);
|
|
|
|
for (i = 0; i < MAX_NO_OF_ADAPTER_PER_DEVICE; i++) {
|
|
active_fe = d->adapter[i].active_fe;
|
|
if (d->adapter[i].dvb_adap.priv && active_fe != -1) {
|
|
fe = d->adapter[i].fe[active_fe];
|
|
|
|
ret = dvb_frontend_resume(fe);
|
|
|
|
/* resume usb streaming */
|
|
usb_urb_submitv2(&d->adapter[i].stream, NULL);
|
|
|
|
if (d->props->streaming_ctrl)
|
|
d->props->streaming_ctrl(fe, 1);
|
|
|
|
d->adapter[i].suspend_resume_active = false;
|
|
}
|
|
}
|
|
|
|
/* start remote controller poll */
|
|
if (d->rc_polling_active)
|
|
schedule_delayed_work(&d->rc_query_work,
|
|
msecs_to_jiffies(d->rc.interval));
|
|
|
|
return ret;
|
|
}
|
|
|
|
int dvb_usbv2_resume(struct usb_interface *intf)
|
|
{
|
|
struct dvb_usb_device *d = usb_get_intfdata(intf);
|
|
dev_dbg(&d->udev->dev, "%s:\n", __func__);
|
|
|
|
return dvb_usbv2_resume_common(d);
|
|
}
|
|
EXPORT_SYMBOL(dvb_usbv2_resume);
|
|
|
|
int dvb_usbv2_reset_resume(struct usb_interface *intf)
|
|
{
|
|
struct dvb_usb_device *d = usb_get_intfdata(intf);
|
|
int ret;
|
|
dev_dbg(&d->udev->dev, "%s:\n", __func__);
|
|
|
|
dvb_usbv2_device_power_ctrl(d, 1);
|
|
|
|
if (d->props->init)
|
|
d->props->init(d);
|
|
|
|
ret = dvb_usbv2_resume_common(d);
|
|
|
|
dvb_usbv2_device_power_ctrl(d, 0);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(dvb_usbv2_reset_resume);
|
|
|
|
MODULE_VERSION("2.0");
|
|
MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
|
|
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
|
|
MODULE_DESCRIPTION("DVB USB common");
|
|
MODULE_LICENSE("GPL");
|