// SPDX-License-Identifier: GPL-2.0-or-later
|
/*
|
* DVB USB framework
|
*
|
* Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@posteo.de>
|
* Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
|
*/
|
|
#include "dvb_usb_common.h"
|
#include <media/media-device.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' (status %d). You can use <kernel_dir>/scripts/get_dvb_firmware to get the firmware\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;
|
|
strscpy(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;
|
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(d->rc.driver_type);
|
if (!dev) {
|
ret = -ENOMEM;
|
goto err;
|
}
|
|
dev->dev.parent = &d->udev->dev;
|
dev->device_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);
|
dev->driver_name = d->props->driver_name;
|
dev->map_name = d->rc.map_name;
|
dev->allowed_protocols = d->rc.allowed_protos;
|
dev->change_protocol = d->rc.change_protocol;
|
dev->timeout = d->rc.timeout;
|
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 int dvb_usbv2_media_device_init(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;
|
|
mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
|
if (!mdev)
|
return -ENOMEM;
|
|
media_device_usb_init(mdev, udev, d->name);
|
|
dvb_register_media_controller(&adap->dvb_adap, mdev);
|
|
dev_info(&d->udev->dev, "media controller created\n");
|
#endif
|
return 0;
|
}
|
|
static int dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)
|
{
|
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
|
return media_device_register(adap->dvb_adap.mdev);
|
#else
|
return 0;
|
#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);
|
media_device_cleanup(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;
|
|
ret = dvb_usbv2_media_device_init(adap);
|
if (ret < 0) {
|
dev_dbg(&d->udev->dev, "%s: dvb_usbv2_media_device_init() failed=%d\n",
|
__func__, ret);
|
goto err_dvb_register_mc;
|
}
|
|
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 == 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 if (ret != WARM) {
|
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");
|
