From 04910bdc5c172af9bc937a8869e7f2907db4443f Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sun, 3 Feb 2008 23:46:16 -0300 Subject: V4L/DVB (7679): pvrusb2: add DVB API framework Add basic framework for the DVB API. This is enough to control the tuner & demod of the digital frontend, but the stream & buffer handling is still missing. Additional note from Mike Isely - also, since these changes are still very experimental arrange for DVB changes to be compiled in via new CONFIG_VIDEO_PVRUSB2_DVB option, for now. Signed-off-by: Michael Krufky Signed-off-by: Mike Isely Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pvrusb2/pvrusb2-dvb.c | 179 ++++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 drivers/media/video/pvrusb2/pvrusb2-dvb.c (limited to 'drivers/media/video/pvrusb2/pvrusb2-dvb.c') diff --git a/drivers/media/video/pvrusb2/pvrusb2-dvb.c b/drivers/media/video/pvrusb2/pvrusb2-dvb.c new file mode 100644 index 00000000000..18c18db2fe3 --- /dev/null +++ b/drivers/media/video/pvrusb2/pvrusb2-dvb.c @@ -0,0 +1,179 @@ +/* + * pvrusb2-dvb.c - linux-dvb api interface to the pvrusb2 driver. + * + * Copyright (C) 2007, 2008 Michael Krufky + * + * 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 + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "dvbdev.h" +#include "pvrusb2-hdw-internal.h" +#include "pvrusb2-hdw.h" +#include "pvrusb2-dvb.h" + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +static int pvr2_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + printk(KERN_DEBUG "start pid: 0x%04x, feedtype: %d\n", + dvbdmxfeed->pid, dvbdmxfeed->type); + return 0; /* FIXME: pvr2_dvb_ctrl_feed(dvbdmxfeed, 1); */ +} + +static int pvr2_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + printk(KERN_DEBUG "stop pid: 0x%04x, feedtype: %d\n", + dvbdmxfeed->pid, dvbdmxfeed->type); + return 0; /* FIXME: pvr2_dvb_ctrl_feed(dvbdmxfeed, 0); */ +} + +static int pvr2_dvb_adapter_init(struct pvr2_dvb_adapter *adap) +{ + int ret; + + ret = dvb_register_adapter(&adap->dvb_adap, "pvrusb2-dvb", + THIS_MODULE/*&hdw->usb_dev->owner*/, + &adap->pvr->hdw->usb_dev->dev, + adapter_nr); + if (ret < 0) { + err("dvb_register_adapter failed: error %d", ret); + goto err; + } + adap->dvb_adap.priv = adap; + + adap->demux.dmx.capabilities = DMX_TS_FILTERING | + DMX_SECTION_FILTERING | + DMX_MEMORY_BASED_FILTERING; + adap->demux.priv = adap; + adap->demux.filternum = 256; + adap->demux.feednum = 256; + adap->demux.start_feed = pvr2_dvb_start_feed; + adap->demux.stop_feed = pvr2_dvb_stop_feed; + adap->demux.write_to_decoder = NULL; + + ret = dvb_dmx_init(&adap->demux); + if (ret < 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; + + ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap); + if (ret < 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->digital_up = 1; + + return 0; + +err_dmx_dev: + dvb_dmx_release(&adap->demux); +err_dmx: + dvb_unregister_adapter(&adap->dvb_adap); +err: + return ret; +} + +static int pvr2_dvb_adapter_exit(struct pvr2_dvb_adapter *adap) +{ + if (adap->digital_up) { + printk(KERN_DEBUG "unregistering DVB devices\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->digital_up = 0; + } + return 0; +} + +static int pvr2_dvb_frontend_init(struct pvr2_dvb_adapter *adap) +{ + struct pvr2_dvb_props *dvb_props = adap->pvr->hdw->hdw_desc->dvb_props; + + if (dvb_props == NULL) { + err("fe_props not defined!"); + return -EINVAL; + } + + if (dvb_props->frontend_attach == NULL) { + err("frontend_attach not defined!"); + return -EINVAL; + } + + if ((dvb_props->frontend_attach(adap) == 0) && (adap->fe)) { + + if (dvb_register_frontend(&adap->dvb_adap, adap->fe)) { + err("frontend registration failed!"); + dvb_frontend_detach(adap->fe); + adap->fe = NULL; + return -ENODEV; + } + + if (dvb_props->tuner_attach) + dvb_props->tuner_attach(adap); + + if (adap->fe->ops.analog_ops.standby) + adap->fe->ops.analog_ops.standby(adap->fe); + + } else { + err("no frontend was attached!"); + return -ENODEV; + } + + return 0; +} + +static int pvr2_dvb_frontend_exit(struct pvr2_dvb_adapter *adap) +{ + if (adap->fe != NULL) { + dvb_unregister_frontend(adap->fe); + dvb_frontend_detach(adap->fe); + } + return 0; +} + +int pvr2_dvb_init(struct pvr2_context *pvr) +{ + int ret = 0; + + pvr->hdw->dvb.pvr = pvr; + + ret = pvr2_dvb_adapter_init(&pvr->hdw->dvb); + if (ret < 0) + goto fail; + + ret = pvr2_dvb_frontend_init(&pvr->hdw->dvb); +fail: + return ret; +} + +int pvr2_dvb_exit(struct pvr2_context *pvr) +{ + pvr2_dvb_frontend_exit(&pvr->hdw->dvb); + pvr2_dvb_adapter_exit(&pvr->hdw->dvb); + + pvr->hdw->dvb.pvr = NULL; + + return 0; +} -- cgit v1.2.3