forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
350 lines
9.3 KiB
350 lines
9.3 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* dvb-usb-dvb.c is part of the DVB USB library. |
|
* |
|
* Copyright (C) 2004-6 Patrick Boettcher ([email protected]) |
|
* see dvb-usb-init.c for copyright information. |
|
* |
|
* This file contains functions for initializing and handling the |
|
* linux-dvb API. |
|
*/ |
|
#include "dvb-usb-common.h" |
|
#include <media/media-device.h> |
|
|
|
/* does the complete input transfer handling */ |
|
static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff) |
|
{ |
|
struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv; |
|
int newfeedcount, ret; |
|
|
|
if (adap == NULL) |
|
return -ENODEV; |
|
|
|
if ((adap->active_fe < 0) || |
|
(adap->active_fe >= adap->num_frontends_initialized)) { |
|
return -EINVAL; |
|
} |
|
|
|
newfeedcount = adap->feedcount + (onoff ? 1 : -1); |
|
|
|
/* stop feed before setting a new pid if there will be no pid anymore */ |
|
if (newfeedcount == 0) { |
|
deb_ts("stop feeding\n"); |
|
usb_urb_kill(&adap->fe_adap[adap->active_fe].stream); |
|
|
|
if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) { |
|
ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 0); |
|
if (ret < 0) { |
|
err("error while stopping stream."); |
|
return ret; |
|
} |
|
} |
|
} |
|
|
|
adap->feedcount = newfeedcount; |
|
|
|
/* activate the pid on the device specific pid_filter */ |
|
deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n", |
|
adap->fe_adap[adap->active_fe].pid_filtering ? |
|
"yes" : "no", dvbdmxfeed->pid, dvbdmxfeed->pid, |
|
dvbdmxfeed->index, onoff ? "on" : "off"); |
|
if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER && |
|
adap->fe_adap[adap->active_fe].pid_filtering && |
|
adap->props.fe[adap->active_fe].pid_filter != NULL) |
|
adap->props.fe[adap->active_fe].pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid, onoff); |
|
|
|
/* start the feed if this was the first feed and there is still a feed |
|
* for reception. |
|
*/ |
|
if (adap->feedcount == onoff && adap->feedcount > 0) { |
|
deb_ts("controlling pid parser\n"); |
|
if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER && |
|
adap->props.fe[adap->active_fe].caps & |
|
DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF && |
|
adap->props.fe[adap->active_fe].pid_filter_ctrl != NULL) { |
|
ret = adap->props.fe[adap->active_fe].pid_filter_ctrl(adap, |
|
adap->fe_adap[adap->active_fe].pid_filtering); |
|
if (ret < 0) { |
|
err("could not handle pid_parser"); |
|
return ret; |
|
} |
|
} |
|
deb_ts("start feeding\n"); |
|
if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) { |
|
ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 1); |
|
if (ret < 0) { |
|
err("error while enabling fifo."); |
|
return ret; |
|
} |
|
} |
|
|
|
deb_ts("submitting all URBs\n"); |
|
usb_urb_submit(&adap->fe_adap[adap->active_fe].stream); |
|
} |
|
return 0; |
|
} |
|
|
|
static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed) |
|
{ |
|
deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, |
|
dvbdmxfeed->type); |
|
return dvb_usb_ctrl_feed(dvbdmxfeed, 1); |
|
} |
|
|
|
static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) |
|
{ |
|
deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type); |
|
return dvb_usb_ctrl_feed(dvbdmxfeed, 0); |
|
} |
|
|
|
static int dvb_usb_media_device_init(struct dvb_usb_adapter *adap) |
|
{ |
|
#ifdef CONFIG_MEDIA_CONTROLLER_DVB |
|
struct media_device *mdev; |
|
struct dvb_usb_device *d = adap->dev; |
|
struct usb_device *udev = d->udev; |
|
|
|
mdev = kzalloc(sizeof(*mdev), GFP_KERNEL); |
|
if (!mdev) |
|
return -ENOMEM; |
|
|
|
media_device_usb_init(mdev, udev, d->desc->name); |
|
|
|
dvb_register_media_controller(&adap->dvb_adap, mdev); |
|
|
|
dev_info(&d->udev->dev, "media controller created\n"); |
|
#endif |
|
return 0; |
|
} |
|
|
|
static int dvb_usb_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_usb_media_device_unregister(struct dvb_usb_adapter *adap) |
|
{ |
|
#ifdef CONFIG_MEDIA_CONTROLLER_DVB |
|
if (!adap->dvb_adap.mdev) |
|
return; |
|
|
|
mutex_lock(&adap->dvb_adap.mdev_lock); |
|
|
|
media_device_unregister(adap->dvb_adap.mdev); |
|
media_device_cleanup(adap->dvb_adap.mdev); |
|
kfree(adap->dvb_adap.mdev); |
|
adap->dvb_adap.mdev = NULL; |
|
|
|
mutex_unlock(&adap->dvb_adap.mdev_lock); |
|
#endif |
|
} |
|
|
|
int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums) |
|
{ |
|
int i; |
|
int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name, |
|
adap->dev->owner, &adap->dev->udev->dev, |
|
adapter_nums); |
|
|
|
if (ret < 0) { |
|
deb_info("dvb_register_adapter failed: error %d", ret); |
|
goto err; |
|
} |
|
adap->dvb_adap.priv = adap; |
|
|
|
ret = dvb_usb_media_device_init(adap); |
|
if (ret < 0) { |
|
deb_info("dvb_usb_media_device_init failed: error %d", ret); |
|
goto err_mc; |
|
} |
|
|
|
if (adap->dev->props.read_mac_address) { |
|
if (adap->dev->props.read_mac_address(adap->dev, adap->dvb_adap.proposed_mac) == 0) |
|
info("MAC address: %pM", adap->dvb_adap.proposed_mac); |
|
else |
|
err("MAC address reading failed."); |
|
} |
|
|
|
|
|
adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; |
|
adap->demux.priv = adap; |
|
|
|
adap->demux.filternum = 0; |
|
for (i = 0; i < adap->props.num_frontends; i++) { |
|
if (adap->demux.filternum < adap->fe_adap[i].max_feed_count) |
|
adap->demux.filternum = adap->fe_adap[i].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; |
|
if ((ret = dvb_dmx_init(&adap->demux)) < 0) { |
|
err("dvb_dmx_init failed: error %d", ret); |
|
goto err_dmx; |
|
} |
|
|
|
adap->dmxdev.filternum = adap->demux.filternum; |
|
adap->dmxdev.demux = &adap->demux.dmx; |
|
adap->dmxdev.capabilities = 0; |
|
if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) { |
|
err("dvb_dmxdev_init failed: error %d", ret); |
|
goto err_dmx_dev; |
|
} |
|
|
|
if ((ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net, |
|
&adap->demux.dmx)) < 0) { |
|
err("dvb_net_init failed: error %d", ret); |
|
goto err_net_init; |
|
} |
|
|
|
adap->state |= DVB_USB_ADAP_STATE_DVB; |
|
return 0; |
|
|
|
err_net_init: |
|
dvb_dmxdev_release(&adap->dmxdev); |
|
err_dmx_dev: |
|
dvb_dmx_release(&adap->demux); |
|
err_dmx: |
|
dvb_usb_media_device_unregister(adap); |
|
err_mc: |
|
dvb_unregister_adapter(&adap->dvb_adap); |
|
err: |
|
return ret; |
|
} |
|
|
|
int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap) |
|
{ |
|
if (adap->state & DVB_USB_ADAP_STATE_DVB) { |
|
deb_info("unregistering DVB part\n"); |
|
dvb_net_release(&adap->dvb_net); |
|
adap->demux.dmx.close(&adap->demux.dmx); |
|
dvb_dmxdev_release(&adap->dmxdev); |
|
dvb_dmx_release(&adap->demux); |
|
dvb_usb_media_device_unregister(adap); |
|
dvb_unregister_adapter(&adap->dvb_adap); |
|
adap->state &= ~DVB_USB_ADAP_STATE_DVB; |
|
} |
|
return 0; |
|
} |
|
|
|
static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff) |
|
{ |
|
struct dvb_usb_adapter *adap = fe->dvb->priv; |
|
|
|
int ret = (adap->props.frontend_ctrl) ? |
|
adap->props.frontend_ctrl(fe, onoff) : 0; |
|
|
|
if (ret < 0) { |
|
err("frontend_ctrl request failed"); |
|
return ret; |
|
} |
|
if (onoff) |
|
adap->active_fe = fe->id; |
|
|
|
return 0; |
|
} |
|
|
|
static int dvb_usb_fe_wakeup(struct dvb_frontend *fe) |
|
{ |
|
struct dvb_usb_adapter *adap = fe->dvb->priv; |
|
|
|
dvb_usb_device_power_ctrl(adap->dev, 1); |
|
|
|
dvb_usb_set_active_fe(fe, 1); |
|
|
|
if (adap->fe_adap[fe->id].fe_init) |
|
adap->fe_adap[fe->id].fe_init(fe); |
|
|
|
return 0; |
|
} |
|
|
|
static int dvb_usb_fe_sleep(struct dvb_frontend *fe) |
|
{ |
|
struct dvb_usb_adapter *adap = fe->dvb->priv; |
|
|
|
if (adap->fe_adap[fe->id].fe_sleep) |
|
adap->fe_adap[fe->id].fe_sleep(fe); |
|
|
|
dvb_usb_set_active_fe(fe, 0); |
|
|
|
return dvb_usb_device_power_ctrl(adap->dev, 0); |
|
} |
|
|
|
int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap) |
|
{ |
|
int ret, i; |
|
|
|
/* register all given adapter frontends */ |
|
for (i = 0; i < adap->props.num_frontends; i++) { |
|
|
|
if (adap->props.fe[i].frontend_attach == NULL) { |
|
err("strange: '%s' #%d,%d doesn't want to attach a frontend.", |
|
adap->dev->desc->name, adap->id, i); |
|
|
|
return 0; |
|
} |
|
|
|
ret = adap->props.fe[i].frontend_attach(adap); |
|
if (ret || adap->fe_adap[i].fe == NULL) { |
|
/* only print error when there is no FE at all */ |
|
if (i == 0) |
|
err("no frontend was attached by '%s'", |
|
adap->dev->desc->name); |
|
|
|
return 0; |
|
} |
|
|
|
adap->fe_adap[i].fe->id = i; |
|
|
|
/* re-assign sleep and wakeup functions */ |
|
adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init; |
|
adap->fe_adap[i].fe->ops.init = dvb_usb_fe_wakeup; |
|
adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep; |
|
adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep; |
|
|
|
if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) { |
|
err("Frontend %d registration failed.", i); |
|
dvb_frontend_detach(adap->fe_adap[i].fe); |
|
adap->fe_adap[i].fe = NULL; |
|
/* In error case, do not try register more FEs, |
|
* still leaving already registered FEs alive. */ |
|
if (i == 0) |
|
return -ENODEV; |
|
else |
|
return 0; |
|
} |
|
|
|
/* only attach the tuner if the demod is there */ |
|
if (adap->props.fe[i].tuner_attach != NULL) |
|
adap->props.fe[i].tuner_attach(adap); |
|
|
|
adap->num_frontends_initialized++; |
|
} |
|
|
|
ret = dvb_create_media_graph(&adap->dvb_adap, true); |
|
if (ret) |
|
return ret; |
|
|
|
ret = dvb_usb_media_device_register(adap); |
|
|
|
return ret; |
|
} |
|
|
|
int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap) |
|
{ |
|
int i = adap->num_frontends_initialized - 1; |
|
|
|
/* unregister all given adapter frontends */ |
|
for (; i >= 0; i--) { |
|
if (adap->fe_adap[i].fe != NULL) { |
|
dvb_unregister_frontend(adap->fe_adap[i].fe); |
|
dvb_frontend_detach(adap->fe_adap[i].fe); |
|
} |
|
} |
|
adap->num_frontends_initialized = 0; |
|
|
|
return 0; |
|
}
|
|
|