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/*
* FireDTV driver (formerly known as FireSAT)
*
* Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
* Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
*
* 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.
*/
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/types.h>
#include <dvb_demux.h>
#include <dvb_frontend.h>
#include <dvbdev.h>
#include "avc_api.h"
#include "firesat.h"
#include "firesat-ci.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
static struct firesat_channel *firesat_channel_allocate(struct firesat *firesat)
{
struct firesat_channel *c = NULL;
int k;
if (mutex_lock_interruptible(&firesat->demux_mutex))
return NULL;
for (k = 0; k < 16; k++)
if (!firesat->channel[k].active) {
firesat->channel[k].active = true;
c = &firesat->channel[k];
break;
}
mutex_unlock(&firesat->demux_mutex);
return c;
}
static int firesat_channel_collect(struct firesat *firesat, int *pidc, u16 pid[])
{
int k, l = 0;
if (mutex_lock_interruptible(&firesat->demux_mutex))
return -EINTR;
for (k = 0; k < 16; k++)
if (firesat->channel[k].active)
pid[l++] = firesat->channel[k].pid;
mutex_unlock(&firesat->demux_mutex);
*pidc = l;
return 0;
}
static int firesat_channel_release(struct firesat *firesat,
struct firesat_channel *channel)
{
if (mutex_lock_interruptible(&firesat->demux_mutex))
return -EINTR;
channel->active = false;
mutex_unlock(&firesat->demux_mutex);
return 0;
}
int firesat_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct firesat *firesat = (struct firesat*)dvbdmxfeed->demux->priv;
struct firesat_channel *channel;
int pidc,k;
u16 pids[16];
switch (dvbdmxfeed->type) {
case DMX_TYPE_TS:
case DMX_TYPE_SEC:
break;
default:
printk(KERN_ERR "%s: invalid type %u\n",
__func__, dvbdmxfeed->type);
return -EINVAL;
}
if (dvbdmxfeed->type == DMX_TYPE_TS) {
switch (dvbdmxfeed->pes_type) {
case DMX_TS_PES_VIDEO:
case DMX_TS_PES_AUDIO:
case DMX_TS_PES_TELETEXT:
case DMX_TS_PES_PCR:
case DMX_TS_PES_OTHER:
//Dirty fix to keep firesat->channel pid-list up to date
for(k=0;k<16;k++){
if (!firesat->channel[k].active)
firesat->channel[k].pid =
dvbdmxfeed->pid;
break;
}
channel = firesat_channel_allocate(firesat);
break;
default:
printk(KERN_ERR "%s: invalid pes type %u\n",
__func__, dvbdmxfeed->pes_type);
return -EINVAL;
}
} else {
channel = firesat_channel_allocate(firesat);
}
if (!channel) {
printk(KERN_ERR "%s: busy!\n", __func__);
return -EBUSY;
}
dvbdmxfeed->priv = channel;
channel->pid = dvbdmxfeed->pid;
if (firesat_channel_collect(firesat, &pidc, pids)) {
firesat_channel_release(firesat, channel);
printk(KERN_ERR "%s: could not collect pids!\n", __func__);
return -EINTR;
}
if (dvbdmxfeed->pid == 8192) {
k = avc_tuner_get_ts(firesat);
if (k) {
firesat_channel_release(firesat, channel);
printk("%s: AVCTuner_GetTS failed with error %d\n",
__func__, k);
return k;
}
} else {
k = avc_tuner_set_pids(firesat, pidc, pids);
if (k) {
firesat_channel_release(firesat, channel);
printk("%s: AVCTuner_SetPIDs failed with error %d\n",
__func__, k);
return k;
}
}
return 0;
}
int firesat_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct dvb_demux *demux = dvbdmxfeed->demux;
struct firesat *firesat = (struct firesat*)demux->priv;
struct firesat_channel *c = dvbdmxfeed->priv;
int k, l;
u16 pids[16];
if (dvbdmxfeed->type == DMX_TYPE_TS && !((dvbdmxfeed->ts_type & TS_PACKET) &&
(demux->dmx.frontend->source != DMX_MEMORY_FE))) {
if (dvbdmxfeed->ts_type & TS_DECODER) {
if (dvbdmxfeed->pes_type >= DMX_TS_PES_OTHER ||
!demux->pesfilter[dvbdmxfeed->pes_type])
return -EINVAL;
demux->pids[dvbdmxfeed->pes_type] |= 0x8000;
demux->pesfilter[dvbdmxfeed->pes_type] = NULL;
}
if (!(dvbdmxfeed->ts_type & TS_DECODER &&
dvbdmxfeed->pes_type < DMX_TS_PES_OTHER))
return 0;
}
if (mutex_lock_interruptible(&firesat->demux_mutex))
return -EINTR;
/* list except channel to be removed */
for (k = 0, l = 0; k < 16; k++)
if (firesat->channel[k].active) {
if (&firesat->channel[k] != c)
pids[l++] = firesat->channel[k].pid;
else
firesat->channel[k].active = false;
}
k = avc_tuner_set_pids(firesat, l, pids);
if (!k)
c->active = false;
mutex_unlock(&firesat->demux_mutex);
return k;
}
int firesat_dvbdev_init(struct firesat *firesat, struct device *dev)
{
int err;
err = DVB_REGISTER_ADAPTER(&firesat->adapter,
firedtv_model_names[firesat->type],
THIS_MODULE, dev, adapter_nr);
if (err)
goto fail_log;
/*DMX_TS_FILTERING | DMX_SECTION_FILTERING*/
firesat->demux.dmx.capabilities = 0;
firesat->demux.priv = (void *)firesat;
firesat->demux.filternum = 16;
firesat->demux.feednum = 16;
firesat->demux.start_feed = firesat_start_feed;
firesat->demux.stop_feed = firesat_stop_feed;
firesat->demux.write_to_decoder = NULL;
err = dvb_dmx_init(&firesat->demux);
if (err)
goto fail_unreg_adapter;
firesat->dmxdev.filternum = 16;
firesat->dmxdev.demux = &firesat->demux.dmx;
firesat->dmxdev.capabilities = 0;
err = dvb_dmxdev_init(&firesat->dmxdev, &firesat->adapter);
if (err)
goto fail_dmx_release;
firesat->frontend.source = DMX_FRONTEND_0;
err = firesat->demux.dmx.add_frontend(&firesat->demux.dmx,
&firesat->frontend);
if (err)
goto fail_dmxdev_release;
err = firesat->demux.dmx.connect_frontend(&firesat->demux.dmx,
&firesat->frontend);
if (err)
goto fail_rem_frontend;
dvb_net_init(&firesat->adapter, &firesat->dvbnet, &firesat->demux.dmx);
firesat_frontend_init(firesat);
err = dvb_register_frontend(&firesat->adapter, &firesat->fe);
if (err)
goto fail_net_release;
err = firesat_ca_register(firesat);
if (err)
dev_info(dev, "Conditional Access Module not enabled\n");
return 0;
fail_net_release:
dvb_net_release(&firesat->dvbnet);
firesat->demux.dmx.close(&firesat->demux.dmx);
fail_rem_frontend:
firesat->demux.dmx.remove_frontend(&firesat->demux.dmx,
&firesat->frontend);
fail_dmxdev_release:
dvb_dmxdev_release(&firesat->dmxdev);
fail_dmx_release:
dvb_dmx_release(&firesat->demux);
fail_unreg_adapter:
dvb_unregister_adapter(&firesat->adapter);
fail_log:
dev_err(dev, "DVB initialization failed\n");
return err;
}
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