1 files changed, 216 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 00000000000..b3cb626ed56
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c
@@ -0,0 +1,216 @@
+/* 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) {
+                        ret = adap->props.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->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) {
+                        ret = adap->props.pid_filter_ctrl(adap,
+                                adap->pid_filtering);
+                        if (ret < 0) {
+                                err("could not handle pid_parser");
+                                return ret;
+                        }
+                }
+                deb_ts("start feeding\n");
+                if (adap->props.streaming_ctrl != NULL) {
+                        ret = adap->props.streaming_ctrl(adap, 1);
+                        if (ret < 0) {
+                                err("error while enabling fifo.");
+                                return ret;
+                        }
+                }
+
+        }
+        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;
+        adap->dvb_adap.fe_ioctl_override = adap->props.fe_ioctl_override;
+
+        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.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;
+}