--- /dev/null
+/*
+ * DVB USB framework
+ *
+ * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@desy.de>
+ * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "dvb_usb_common.h"
+
+static int dvb_usbv2_disable_rc_polling;
+module_param_named(disable_rc_polling, dvb_usbv2_disable_rc_polling, int, 0644);
+MODULE_PARM_DESC(disable_rc_polling,
+ "disable remote control polling (default: 0)");
+static int dvb_usb_force_pid_filter_usage;
+module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage,
+ int, 0444);
+MODULE_PARM_DESC(force_pid_filter_usage,
+ "force all DVB USB devices to use a PID filter, if any (default: 0)");
+
+static int dvb_usbv2_download_firmware(struct dvb_usb_device *d,
+ const char *name)
+{
+ int ret;
+ const struct firmware *fw;
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ if (!d->props->download_firmware) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = request_firmware(&fw, name, &d->udev->dev);
+ if (ret < 0) {
+ dev_err(&d->udev->dev,
+ "%s: Did not find the firmware file '%s'. Please see linux/Documentation/dvb/ for more details on firmware-problems. Status %d\n",
+ KBUILD_MODNAME, name, ret);
+ goto err;
+ }
+
+ dev_info(&d->udev->dev, "%s: downloading firmware from file '%s'\n",
+ KBUILD_MODNAME, name);
+
+ ret = d->props->download_firmware(d, fw);
+ release_firmware(fw);
+ if (ret < 0)
+ goto err;
+
+ return ret;
+err:
+ dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int dvb_usbv2_i2c_init(struct dvb_usb_device *d)
+{
+ int ret;
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ if (!d->props->i2c_algo)
+ return 0;
+
+ strlcpy(d->i2c_adap.name, d->name, sizeof(d->i2c_adap.name));
+ d->i2c_adap.algo = d->props->i2c_algo;
+ d->i2c_adap.dev.parent = &d->udev->dev;
+ i2c_set_adapdata(&d->i2c_adap, d);
+
+ ret = i2c_add_adapter(&d->i2c_adap);
+ if (ret < 0) {
+ d->i2c_adap.algo = NULL;
+ dev_err(&d->udev->dev, "%s: i2c_add_adapter() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ goto err;
+ }
+
+ return 0;
+err:
+ dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int dvb_usbv2_i2c_exit(struct dvb_usb_device *d)
+{
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ if (d->i2c_adap.algo)
+ i2c_del_adapter(&d->i2c_adap);
+
+ return 0;
+}
+
+#if IS_ENABLED(CONFIG_RC_CORE)
+static void dvb_usb_read_remote_control(struct work_struct *work)
+{
+ struct dvb_usb_device *d = container_of(work,
+ struct dvb_usb_device, rc_query_work.work);
+ int ret;
+
+ /*
+ * When the parameter has been set to 1 via sysfs while the
+ * driver was running, or when bulk mode is enabled after IR init.
+ */
+ if (dvb_usbv2_disable_rc_polling || d->rc.bulk_mode) {
+ d->rc_polling_active = false;
+ return;
+ }
+
+ ret = d->rc.query(d);
+ if (ret < 0) {
+ dev_err(&d->udev->dev, "%s: rc.query() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ d->rc_polling_active = false;
+ return; /* stop polling */
+ }
+
+ schedule_delayed_work(&d->rc_query_work,
+ msecs_to_jiffies(d->rc.interval));
+}
+
+static int dvb_usbv2_remote_init(struct dvb_usb_device *d)
+{
+ int ret;
+ struct rc_dev *dev;
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ if (dvb_usbv2_disable_rc_polling || !d->props->get_rc_config)
+ return 0;
+
+ d->rc.map_name = d->rc_map;
+ ret = d->props->get_rc_config(d, &d->rc);
+ if (ret < 0)
+ goto err;
+
+ /* disable rc when there is no keymap defined */
+ if (!d->rc.map_name)
+ return 0;
+
+ dev = rc_allocate_device();
+ if (!dev) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev->dev.parent = &d->udev->dev;
+ dev->input_name = d->name;
+ usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys));
+ strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys));
+ dev->input_phys = d->rc_phys;
+ usb_to_input_id(d->udev, &dev->input_id);
+ /* TODO: likely RC-core should took const char * */
+ dev->driver_name = (char *) d->props->driver_name;
+ dev->map_name = d->rc.map_name;
+ dev->driver_type = d->rc.driver_type;
+ dev->allowed_protocols = d->rc.allowed_protos;
+ dev->change_protocol = d->rc.change_protocol;
+ dev->priv = d;
+
+ ret = rc_register_device(dev);
+ if (ret < 0) {
+ rc_free_device(dev);
+ goto err;
+ }
+
+ d->rc_dev = dev;
+
+ /* start polling if needed */
+ if (d->rc.query && !d->rc.bulk_mode) {
+ /* initialize a work queue for handling polling */
+ INIT_DELAYED_WORK(&d->rc_query_work,
+ dvb_usb_read_remote_control);
+ dev_info(&d->udev->dev,
+ "%s: schedule remote query interval to %d msecs\n",
+ KBUILD_MODNAME, d->rc.interval);
+ schedule_delayed_work(&d->rc_query_work,
+ msecs_to_jiffies(d->rc.interval));
+ d->rc_polling_active = true;
+ }
+
+ return 0;
+err:
+ dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int dvb_usbv2_remote_exit(struct dvb_usb_device *d)
+{
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ if (d->rc_dev) {
+ cancel_delayed_work_sync(&d->rc_query_work);
+ rc_unregister_device(d->rc_dev);
+ d->rc_dev = NULL;
+ }
+
+ return 0;
+}
+#else
+ #define dvb_usbv2_remote_init(args...) 0
+ #define dvb_usbv2_remote_exit(args...)
+#endif
+
+static void dvb_usb_data_complete(struct usb_data_stream *stream, u8 *buf,
+ size_t len)
+{
+ struct dvb_usb_adapter *adap = stream->user_priv;
+ dvb_dmx_swfilter(&adap->demux, buf, len);
+}
+
+static void dvb_usb_data_complete_204(struct usb_data_stream *stream, u8 *buf,
+ size_t len)
+{
+ struct dvb_usb_adapter *adap = stream->user_priv;
+ dvb_dmx_swfilter_204(&adap->demux, buf, len);
+}
+
+static void dvb_usb_data_complete_raw(struct usb_data_stream *stream, u8 *buf,
+ size_t len)
+{
+ struct dvb_usb_adapter *adap = stream->user_priv;
+ dvb_dmx_swfilter_raw(&adap->demux, buf, len);
+}
+
+static int dvb_usbv2_adapter_stream_init(struct dvb_usb_adapter *adap)
+{
+ dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
+ adap->id);
+
+ adap->stream.udev = adap_to_d(adap)->udev;
+ adap->stream.user_priv = adap;
+ adap->stream.complete = dvb_usb_data_complete;
+
+ return usb_urb_initv2(&adap->stream, &adap->props->stream);
+}
+
+static int dvb_usbv2_adapter_stream_exit(struct dvb_usb_adapter *adap)
+{
+ dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
+ adap->id);
+
+ return usb_urb_exitv2(&adap->stream);
+}
+
+static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+ struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
+ struct dvb_usb_device *d = adap_to_d(adap);
+ int ret = 0;
+ struct usb_data_stream_properties stream_props;
+ dev_dbg(&d->udev->dev,
+ "%s: adap=%d active_fe=%d feed_type=%d setting pid [%s]: %04x (%04d) at index %d\n",
+ __func__, adap->id, adap->active_fe, dvbdmxfeed->type,
+ adap->pid_filtering ? "yes" : "no", dvbdmxfeed->pid,
+ dvbdmxfeed->pid, dvbdmxfeed->index);
+
+ /* wait init is done */
+ wait_on_bit(&adap->state_bits, ADAP_INIT, TASK_UNINTERRUPTIBLE);
+
+ if (adap->active_fe == -1)
+ return -EINVAL;
+
+ /* skip feed setup if we are already feeding */
+ if (adap->feed_count++ > 0)
+ goto skip_feed_start;
+
+ /* set 'streaming' status bit */
+ set_bit(ADAP_STREAMING, &adap->state_bits);
+
+ /* resolve input and output streaming parameters */
+ if (d->props->get_stream_config) {
+ memcpy(&stream_props, &adap->props->stream,
+ sizeof(struct usb_data_stream_properties));
+ ret = d->props->get_stream_config(adap->fe[adap->active_fe],
+ &adap->ts_type, &stream_props);
+ if (ret)
+ dev_err(&d->udev->dev,
+ "%s: get_stream_config() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ } else {
+ stream_props = adap->props->stream;
+ }
+
+ switch (adap->ts_type) {
+ case DVB_USB_FE_TS_TYPE_204:
+ adap->stream.complete = dvb_usb_data_complete_204;
+ break;
+ case DVB_USB_FE_TS_TYPE_RAW:
+ adap->stream.complete = dvb_usb_data_complete_raw;
+ break;
+ case DVB_USB_FE_TS_TYPE_188:
+ default:
+ adap->stream.complete = dvb_usb_data_complete;
+ break;
+ }
+
+ /* submit USB streaming packets */
+ usb_urb_submitv2(&adap->stream, &stream_props);
+
+ /* enable HW PID filter */
+ if (adap->pid_filtering && adap->props->pid_filter_ctrl) {
+ ret = adap->props->pid_filter_ctrl(adap, 1);
+ if (ret)
+ dev_err(&d->udev->dev,
+ "%s: pid_filter_ctrl() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ }
+
+ /* ask device to start streaming */
+ if (d->props->streaming_ctrl) {
+ ret = d->props->streaming_ctrl(adap->fe[adap->active_fe], 1);
+ if (ret)
+ dev_err(&d->udev->dev,
+ "%s: streaming_ctrl() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ }
+skip_feed_start:
+
+ /* add PID to device HW PID filter */
+ if (adap->pid_filtering && adap->props->pid_filter) {
+ ret = adap->props->pid_filter(adap, dvbdmxfeed->index,
+ dvbdmxfeed->pid, 1);
+ if (ret)
+ dev_err(&d->udev->dev, "%s: pid_filter() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ }
+
+ if (ret)
+ dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+ struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
+ struct dvb_usb_device *d = adap_to_d(adap);
+ int ret = 0;
+ dev_dbg(&d->udev->dev,
+ "%s: adap=%d active_fe=%d feed_type=%d setting pid [%s]: %04x (%04d) at index %d\n",
+ __func__, adap->id, adap->active_fe, dvbdmxfeed->type,
+ adap->pid_filtering ? "yes" : "no", dvbdmxfeed->pid,
+ dvbdmxfeed->pid, dvbdmxfeed->index);
+
+ if (adap->active_fe == -1)
+ return -EINVAL;
+
+ /* remove PID from device HW PID filter */
+ if (adap->pid_filtering && adap->props->pid_filter) {
+ ret = adap->props->pid_filter(adap, dvbdmxfeed->index,
+ dvbdmxfeed->pid, 0);
+ if (ret)
+ dev_err(&d->udev->dev, "%s: pid_filter() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ }
+
+ /* we cannot stop streaming until last PID is removed */
+ if (--adap->feed_count > 0)
+ goto skip_feed_stop;
+
+ /* ask device to stop streaming */
+ if (d->props->streaming_ctrl) {
+ ret = d->props->streaming_ctrl(adap->fe[adap->active_fe], 0);
+ if (ret)
+ dev_err(&d->udev->dev,
+ "%s: streaming_ctrl() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ }
+
+ /* disable HW PID filter */
+ if (adap->pid_filtering && adap->props->pid_filter_ctrl) {
+ ret = adap->props->pid_filter_ctrl(adap, 0);
+ if (ret)
+ dev_err(&d->udev->dev,
+ "%s: pid_filter_ctrl() failed=%d\n",
+ KBUILD_MODNAME, ret);
+ }
+
+ /* kill USB streaming packets */
+ usb_urb_killv2(&adap->stream);
+
+ /* clear 'streaming' status bit */
+ clear_bit(ADAP_STREAMING, &adap->state_bits);
+ smp_mb__after_atomic();
+ wake_up_bit(&adap->state_bits, ADAP_STREAMING);
+skip_feed_stop:
+
+ if (ret)
+ dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static void dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+ struct media_device *mdev;
+ struct dvb_usb_device *d = adap_to_d(adap);
+ struct usb_device *udev = d->udev;
+ int ret;
+
+ mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
+ if (!mdev)
+ return;
+
+ mdev->dev = &udev->dev;
+ strlcpy(mdev->model, d->name, sizeof(mdev->model));
+ if (udev->serial)
+ strlcpy(mdev->serial, udev->serial, sizeof(mdev->serial));
+ strcpy(mdev->bus_info, udev->devpath);
+ mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
+ mdev->driver_version = LINUX_VERSION_CODE;
+
+ ret = media_device_register(mdev);
+ if (ret) {
+ dev_err(&d->udev->dev,
+ "Couldn't create a media device. Error: %d\n",
+ ret);
+ kfree(mdev);
+ return;
+ }
+
+ dvb_register_media_controller(&adap->dvb_adap, mdev);
+
+ dev_info(&d->udev->dev, "media controller created\n");
+
+#endif
+}
+
+static void dvb_usbv2_media_device_unregister(struct dvb_usb_adapter *adap)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+
+ if (!adap->dvb_adap.mdev)
+ return;
+
+ media_device_unregister(adap->dvb_adap.mdev);
+ kfree(adap->dvb_adap.mdev);
+ adap->dvb_adap.mdev = NULL;
+
+#endif
+}
+
+static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
+{
+ int ret;
+ struct dvb_usb_device *d = adap_to_d(adap);
+
+ dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);
+
+ ret = dvb_register_adapter(&adap->dvb_adap, d->name, d->props->owner,
+ &d->udev->dev, d->props->adapter_nr);
+ if (ret < 0) {
+ dev_dbg(&d->udev->dev, "%s: dvb_register_adapter() failed=%d\n",
+ __func__, ret);
+ goto err_dvb_register_adapter;
+ }
+
+ adap->dvb_adap.priv = adap;
+
+ dvb_usbv2_media_device_register(adap);
+
+ 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);
+ 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_usbv2_media_device_unregister(adap);
+ 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);
+ if (ret < 0)
+ goto err;
+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;
+ }
+ }
+
+ dvb_create_media_graph(&adap->dvb_adap);
+
+ return 0;
+
+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]);
+ }
+ }
+
+ 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);
+ kfree(d->priv);
+ kfree(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_free_all;
+ }
+
+ 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_free_all;
+ }
+ }
+
+ 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);
+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 *name = d->name;
+ struct device dev = d->udev->dev;
+
+ 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);
+
+ dev_info(&dev, "%s: '%s' successfully deinitialized and disconnected\n",
+ KBUILD_MODNAME, name);
+}
+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@desy.de>");
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("DVB USB common");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff