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path: root/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c
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Diffstat (limited to 'drivers/media/dvb/dvb-usb/dvb-usb-dvb.c')
-rw-r--r--drivers/media/dvb/dvb-usb/dvb-usb-dvb.c207
1 files changed, 207 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c b/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c
new file mode 100644
index 0000000..ce8cd0c
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c
@@ -0,0 +1,207 @@
+/* dvb-usb-dvb.c is part of the DVB USB library.
+ *
+ * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
+ * 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"
+
+/* 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;
+
+ 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->stream);
+
+ if (adap->props.streaming_ctrl != NULL)
+ if ((ret = adap->props.streaming_ctrl(adap,0)))
+ err("error while stopping stream.");
+ }
+
+ 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->pid_filtering ?
+ "yes" : "no", dvbdmxfeed->pid,dvbdmxfeed->pid,dvbdmxfeed->index,onoff ?
+ "on" : "off");
+ if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER &&
+ adap->pid_filtering &&
+ adap->props.pid_filter != NULL)
+ adap->props.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("submitting all URBs\n");
+ usb_urb_submit(&adap->stream);
+
+ deb_ts("controlling pid parser\n");
+ if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER &&
+ adap->props.caps & DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
+ adap->props.pid_filter_ctrl != NULL)
+ if (adap->props.pid_filter_ctrl(adap,adap->pid_filtering) < 0)
+ err("could not handle pid_parser");
+
+ deb_ts("start feeding\n");
+ if (adap->props.streaming_ctrl != NULL)
+ if (adap->props.streaming_ctrl(adap,1)) {
+ err("error while enabling fifo.");
+ return -ENODEV;
+ }
+
+ }
+ 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);
+}
+
+int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums)
+{
+ 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;
+
+ 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: %02x:%02x:%02x:%02x:%02x:%02x",adap->dvb_adap.proposed_mac[0],
+ adap->dvb_adap.proposed_mac[1], adap->dvb_adap.proposed_mac[2],
+ adap->dvb_adap.proposed_mac[3], adap->dvb_adap.proposed_mac[4],
+ adap->dvb_adap.proposed_mac[5]);
+ else
+ err("MAC address reading failed.");
+ }
+
+
+ adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
+ adap->demux.priv = adap;
+
+ adap->demux.feednum = adap->demux.filternum = adap->max_feed_count;
+ 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;
+ }
+
+ dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx);
+
+ adap->state |= DVB_USB_ADAP_STATE_DVB;
+ return 0;
+
+err_dmx_dev:
+ dvb_dmx_release(&adap->demux);
+err_dmx:
+ 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_unregister_adapter(&adap->dvb_adap);
+ adap->state &= ~DVB_USB_ADAP_STATE_DVB;
+ }
+ 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);
+
+ if (adap->fe_init)
+ adap->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_sleep)
+ adap->fe_sleep(fe);
+
+ return dvb_usb_device_power_ctrl(adap->dev, 0);
+}
+
+int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
+{
+ if (adap->props.frontend_attach == NULL) {
+ err("strange: '%s' #%d doesn't want to attach a frontend.",adap->dev->desc->name, adap->id);
+ return 0;
+ }
+
+ /* re-assign sleep and wakeup functions */
+ if (adap->props.frontend_attach(adap) == 0 && adap->fe != NULL) {
+ adap->fe_init = adap->fe->ops.init; adap->fe->ops.init = dvb_usb_fe_wakeup;
+ adap->fe_sleep = adap->fe->ops.sleep; adap->fe->ops.sleep = dvb_usb_fe_sleep;
+
+ if (dvb_register_frontend(&adap->dvb_adap, adap->fe)) {
+ err("Frontend registration failed.");
+ dvb_frontend_detach(adap->fe);
+ adap->fe = NULL;
+ return -ENODEV;
+ }
+
+ /* only attach the tuner if the demod is there */
+ if (adap->props.tuner_attach != NULL)
+ adap->props.tuner_attach(adap);
+ } else
+ err("no frontend was attached by '%s'",adap->dev->desc->name);
+
+ return 0;
+}
+
+int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
+{
+ if (adap->fe != NULL) {
+ dvb_unregister_frontend(adap->fe);
+ dvb_frontend_detach(adap->fe);
+ }
+ return 0;
+}
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