f68d0cf567
cx18: Use default kernel work queue; fix streaming flag for work handler. Eliminate cx18 specific work queue and use the kernel default work queue. Fixed the F_STREAMING_FLAG for the TS stream so cx18_dvb_work_handler() can know when it is not safe to send MDLs to the firmware. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
331 lines
8.5 KiB
C
331 lines
8.5 KiB
C
/*
|
|
* cx18 functions for DVB support
|
|
*
|
|
* Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
|
|
*
|
|
* 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-io.h"
|
|
#include "cx18-streams.h"
|
|
#include "cx18-queue.h"
|
|
#include "cx18-scb.h"
|
|
#include "cx18-cards.h"
|
|
#include "s5h1409.h"
|
|
#include "mxl5005s.h"
|
|
|
|
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
|
|
|
|
#define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
|
|
|
|
static struct mxl5005s_config hauppauge_hvr1600_tuner = {
|
|
.i2c_address = 0xC6 >> 1,
|
|
.if_freq = IF_FREQ_5380000HZ,
|
|
.xtal_freq = CRYSTAL_FREQ_16000000HZ,
|
|
.agc_mode = MXL_SINGLE_AGC,
|
|
.tracking_filter = MXL_TF_C_H,
|
|
.rssi_enable = MXL_RSSI_ENABLE,
|
|
.cap_select = MXL_CAP_SEL_ENABLE,
|
|
.div_out = MXL_DIV_OUT_4,
|
|
.clock_out = MXL_CLOCK_OUT_DISABLE,
|
|
.output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
|
|
.top = MXL5005S_TOP_25P2,
|
|
.mod_mode = MXL_DIGITAL_MODE,
|
|
.if_mode = MXL_ZERO_IF,
|
|
.AgcMasterByte = 0x00,
|
|
};
|
|
|
|
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
|
|
|
|
};
|
|
|
|
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;
|
|
u32 v;
|
|
|
|
CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
|
|
feed->pid, feed->index);
|
|
|
|
mutex_lock(&cx->serialize_lock);
|
|
ret = cx18_init_on_first_open(cx);
|
|
mutex_unlock(&cx->serialize_lock);
|
|
if (ret) {
|
|
CX18_ERR("Failed to initialize firmware starting DVB feed\n");
|
|
return ret;
|
|
}
|
|
ret = -EINVAL;
|
|
|
|
switch (cx->card->type) {
|
|
case CX18_CARD_HVR_1600_ESMT:
|
|
case CX18_CARD_HVR_1600_SAMSUNG:
|
|
v = cx18_read_reg(cx, 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 */
|
|
cx18_write_reg(cx, 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)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&stream->dvb.feedlock);
|
|
if (stream->dvb.feeding++ == 0) {
|
|
CX18_DEBUG_INFO("Starting Transport DMA\n");
|
|
set_bit(CX18_F_S_STREAMING, &stream->s_flags);
|
|
ret = cx18_start_v4l2_encode_stream(stream);
|
|
if (ret < 0) {
|
|
CX18_DEBUG_INFO("Failed to start Transport DMA\n");
|
|
stream->dvb.feeding--;
|
|
if (stream->dvb.feeding == 0)
|
|
clear_bit(CX18_F_S_STREAMING, &stream->s_flags);
|
|
}
|
|
} 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) {
|
|
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(mxl5005s_attach, dvb->fe,
|
|
&cx->i2c_adap[0],
|
|
&hauppauge_hvr1600_tuner);
|
|
ret = 0;
|
|
}
|
|
break;
|
|
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;
|
|
}
|
|
|
|
void cx18_dvb_work_handler(struct cx18 *cx)
|
|
{
|
|
struct cx18_buffer *buf;
|
|
struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_TS];
|
|
|
|
while ((buf = cx18_dequeue(s, &s->q_full)) != NULL) {
|
|
if (s->dvb.enabled)
|
|
dvb_dmx_swfilter(&s->dvb.demux, buf->buf,
|
|
buf->bytesused);
|
|
|
|
cx18_buf_sync_for_device(s, buf);
|
|
cx18_enqueue(s, buf, &s->q_free);
|
|
|
|
if (s->handle == CX18_INVALID_TASK_HANDLE ||
|
|
!test_bit(CX18_F_S_STREAMING, &s->s_flags))
|
|
continue;
|
|
|
|
cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle,
|
|
(void __iomem *)&cx->scb->cpu_mdl[buf->id] - cx->enc_mem,
|
|
1, buf->id, s->buf_size);
|
|
}
|
|
}
|