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/*
* cx18 functions for DVB support
*
* Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
*
* 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, or
* (at your option) any later version.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "cx18-version.h"
#include "cx18-dvb.h"
#include "cx18-streams.h"
#include "cx18-cards.h"
#include "s5h1409.h"
/* Wait until the MXL500X driver is merged */
#ifdef HAVE_MXL500X
#include "mxl500x.h"
#endif
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
#define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
#ifdef HAVE_MXL500X
static struct mxl500x_config hauppauge_hvr1600_tuner = {
.delsys = MXL500x_MODE_ATSC,
.octf = MXL500x_OCTF_CH,
.xtal_freq = 16000000,
.iflo_freq = 5380000,
.ref_freq = 322800000,
.rssi_ena = MXL_RSSI_ENABLE,
.addr = 0xC6 >> 1,
};
static struct s5h1409_config hauppauge_hvr1600_config = {
.demod_address = 0x32 >> 1,
.output_mode = S5H1409_SERIAL_OUTPUT,
.gpio = S5H1409_GPIO_ON,
.qam_if = 44000,
.inversion = S5H1409_INVERSION_OFF,
.status_mode = S5H1409_DEMODLOCKING,
.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
};
#endif
static int dvb_register(struct cx18_stream *stream);
/* Kernel DVB framework calls this when the feed needs to start.
* The CX18 framework should enable the transport DMA handling
* and queue processing.
*/
static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct cx18_stream *stream = (struct cx18_stream *) demux->priv;
struct cx18 *cx = stream->cx;
int ret = -EINVAL;
u32 v;
CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
feed->pid, feed->index);
switch (cx->card->type) {
case CX18_CARD_HVR_1600_ESMT:
case CX18_CARD_HVR_1600_SAMSUNG:
v = read_reg(CX18_REG_DMUX_NUM_PORT_0_CONTROL);
v |= 0x00400000; /* Serial Mode */
v |= 0x00002000; /* Data Length - Byte */
v |= 0x00010000; /* Error - Polarity */
v |= 0x00020000; /* Error - Passthru */
v |= 0x000c0000; /* Error - Ignore */
write_reg(v, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
break;
default:
/* Assumption - Parallel transport - Signalling
* undefined or default.
*/
break;
}
if (!demux->dmx.frontend)
return -EINVAL;
if (stream) {
mutex_lock(&stream->dvb.feedlock);
if (stream->dvb.feeding++ == 0) {
CX18_DEBUG_INFO("Starting Transport DMA\n");
ret = cx18_start_v4l2_encode_stream(stream);
} else
ret = 0;
mutex_unlock(&stream->dvb.feedlock);
}
return ret;
}
/* Kernel DVB framework calls this when the feed needs to stop. */
static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct cx18_stream *stream = (struct cx18_stream *)demux->priv;
struct cx18 *cx = stream->cx;
int ret = -EINVAL;
CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
feed->pid, feed->index);
if (stream) {
mutex_lock(&stream->dvb.feedlock);
if (--stream->dvb.feeding == 0) {
CX18_DEBUG_INFO("Stopping Transport DMA\n");
ret = cx18_stop_v4l2_encode_stream(stream, 0);
} else
ret = 0;
mutex_unlock(&stream->dvb.feedlock);
}
return ret;
}
int cx18_dvb_register(struct cx18_stream *stream)
{
struct cx18 *cx = stream->cx;
struct cx18_dvb *dvb = &stream->dvb;
struct dvb_adapter *dvb_adapter;
struct dvb_demux *dvbdemux;
struct dmx_demux *dmx;
int ret;
if (!dvb)
return -EINVAL;
ret = dvb_register_adapter(&dvb->dvb_adapter,
CX18_DRIVER_NAME,
THIS_MODULE, &cx->dev->dev, adapter_nr);
if (ret < 0)
goto err_out;
dvb_adapter = &dvb->dvb_adapter;
dvbdemux = &dvb->demux;
dvbdemux->priv = (void *)stream;
dvbdemux->filternum = 256;
dvbdemux->feednum = 256;
dvbdemux->start_feed = cx18_dvb_start_feed;
dvbdemux->stop_feed = cx18_dvb_stop_feed;
dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
ret = dvb_dmx_init(dvbdemux);
if (ret < 0)
goto err_dvb_unregister_adapter;
dmx = &dvbdemux->dmx;
dvb->hw_frontend.source = DMX_FRONTEND_0;
dvb->mem_frontend.source = DMX_MEMORY_FE;
dvb->dmxdev.filternum = 256;
dvb->dmxdev.demux = dmx;
ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter);
if (ret < 0)
goto err_dvb_dmx_release;
ret = dmx->add_frontend(dmx, &dvb->hw_frontend);
if (ret < 0)
goto err_dvb_dmxdev_release;
ret = dmx->add_frontend(dmx, &dvb->mem_frontend);
if (ret < 0)
goto err_remove_hw_frontend;
ret = dmx->connect_frontend(dmx, &dvb->hw_frontend);
if (ret < 0)
goto err_remove_mem_frontend;
ret = dvb_register(stream);
if (ret < 0)
goto err_disconnect_frontend;
dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx);
CX18_INFO("DVB Frontend registered\n");
mutex_init(&dvb->feedlock);
dvb->enabled = 1;
return ret;
err_disconnect_frontend:
dmx->disconnect_frontend(dmx);
err_remove_mem_frontend:
dmx->remove_frontend(dmx, &dvb->mem_frontend);
err_remove_hw_frontend:
dmx->remove_frontend(dmx, &dvb->hw_frontend);
err_dvb_dmxdev_release:
dvb_dmxdev_release(&dvb->dmxdev);
err_dvb_dmx_release:
dvb_dmx_release(dvbdemux);
err_dvb_unregister_adapter:
dvb_unregister_adapter(dvb_adapter);
err_out:
return ret;
}
void cx18_dvb_unregister(struct cx18_stream *stream)
{
struct cx18 *cx = stream->cx;
struct cx18_dvb *dvb = &stream->dvb;
struct dvb_adapter *dvb_adapter;
struct dvb_demux *dvbdemux;
struct dmx_demux *dmx;
CX18_INFO("unregister DVB\n");
dvb_adapter = &dvb->dvb_adapter;
dvbdemux = &dvb->demux;
dmx = &dvbdemux->dmx;
dmx->close(dmx);
dvb_net_release(&dvb->dvbnet);
dmx->remove_frontend(dmx, &dvb->mem_frontend);
dmx->remove_frontend(dmx, &dvb->hw_frontend);
dvb_dmxdev_release(&dvb->dmxdev);
dvb_dmx_release(dvbdemux);
dvb_unregister_frontend(dvb->fe);
dvb_frontend_detach(dvb->fe);
dvb_unregister_adapter(dvb_adapter);
}
/* All the DVB attach calls go here, this function get's modified
* for each new card. No other function in this file needs
* to change.
*/
static int dvb_register(struct cx18_stream *stream)
{
struct cx18_dvb *dvb = &stream->dvb;
struct cx18 *cx = stream->cx;
int ret = 0;
switch (cx->card->type) {
/* Wait until the MXL500X driver is merged */
#ifdef HAVE_MXL500X
case CX18_CARD_HVR_1600_ESMT:
case CX18_CARD_HVR_1600_SAMSUNG:
dvb->fe = dvb_attach(s5h1409_attach,
&hauppauge_hvr1600_config,
&cx->i2c_adap[0]);
if (dvb->fe != NULL) {
dvb_attach(mxl500x_attach, dvb->fe,
&hauppauge_hvr1600_tuner,
&cx->i2c_adap[0]);
ret = 0;
}
break;
#endif
default:
/* No Digital Tv Support */
break;
}
if (dvb->fe == NULL) {
CX18_ERR("frontend initialization failed\n");
return -1;
}
ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe);
if (ret < 0) {
if (dvb->fe->ops.release)
dvb->fe->ops.release(dvb->fe);
return ret;
}
return ret;
}
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