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3d05913d89
Renamed structure member name to be more specific to type in anticipation of updating to the v4l2_device/v4l2_subdev framework. Too many objects named "dev" and /v4l2_\{0,1\}dev/ would be to confusing. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
311 lines
8.0 KiB
C
311 lines
8.0 KiB
C
/*
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* cx18 functions for DVB support
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*
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* Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
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* Copyright (C) 2008 Andy Walls <awalls@radix.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "cx18-version.h"
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#include "cx18-dvb.h"
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#include "cx18-io.h"
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#include "cx18-streams.h"
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#include "cx18-cards.h"
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#include "s5h1409.h"
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#include "mxl5005s.h"
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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#define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
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static struct mxl5005s_config hauppauge_hvr1600_tuner = {
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.i2c_address = 0xC6 >> 1,
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.if_freq = IF_FREQ_5380000HZ,
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.xtal_freq = CRYSTAL_FREQ_16000000HZ,
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.agc_mode = MXL_SINGLE_AGC,
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.tracking_filter = MXL_TF_C_H,
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.rssi_enable = MXL_RSSI_ENABLE,
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.cap_select = MXL_CAP_SEL_ENABLE,
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.div_out = MXL_DIV_OUT_4,
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.clock_out = MXL_CLOCK_OUT_DISABLE,
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.output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
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.top = MXL5005S_TOP_25P2,
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.mod_mode = MXL_DIGITAL_MODE,
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.if_mode = MXL_ZERO_IF,
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.AgcMasterByte = 0x00,
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};
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static struct s5h1409_config hauppauge_hvr1600_config = {
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.demod_address = 0x32 >> 1,
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.output_mode = S5H1409_SERIAL_OUTPUT,
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.gpio = S5H1409_GPIO_ON,
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.qam_if = 44000,
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.inversion = S5H1409_INVERSION_OFF,
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.status_mode = S5H1409_DEMODLOCKING,
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.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
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};
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static int dvb_register(struct cx18_stream *stream);
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/* Kernel DVB framework calls this when the feed needs to start.
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* The CX18 framework should enable the transport DMA handling
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* and queue processing.
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*/
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static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
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{
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struct dvb_demux *demux = feed->demux;
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struct cx18_stream *stream = (struct cx18_stream *) demux->priv;
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struct cx18 *cx = stream->cx;
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int ret;
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u32 v;
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CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
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feed->pid, feed->index);
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mutex_lock(&cx->serialize_lock);
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ret = cx18_init_on_first_open(cx);
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mutex_unlock(&cx->serialize_lock);
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if (ret) {
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CX18_ERR("Failed to initialize firmware starting DVB feed\n");
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return ret;
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}
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ret = -EINVAL;
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switch (cx->card->type) {
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case CX18_CARD_HVR_1600_ESMT:
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case CX18_CARD_HVR_1600_SAMSUNG:
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v = cx18_read_reg(cx, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
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v |= 0x00400000; /* Serial Mode */
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v |= 0x00002000; /* Data Length - Byte */
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v |= 0x00010000; /* Error - Polarity */
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v |= 0x00020000; /* Error - Passthru */
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v |= 0x000c0000; /* Error - Ignore */
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cx18_write_reg(cx, v, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
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break;
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default:
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/* Assumption - Parallel transport - Signalling
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* undefined or default.
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*/
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break;
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}
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if (!demux->dmx.frontend)
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return -EINVAL;
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if (!stream)
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return -EINVAL;
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mutex_lock(&stream->dvb.feedlock);
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if (stream->dvb.feeding++ == 0) {
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CX18_DEBUG_INFO("Starting Transport DMA\n");
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set_bit(CX18_F_S_STREAMING, &stream->s_flags);
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ret = cx18_start_v4l2_encode_stream(stream);
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if (ret < 0) {
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CX18_DEBUG_INFO("Failed to start Transport DMA\n");
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stream->dvb.feeding--;
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if (stream->dvb.feeding == 0)
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clear_bit(CX18_F_S_STREAMING, &stream->s_flags);
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}
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} else
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ret = 0;
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mutex_unlock(&stream->dvb.feedlock);
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return ret;
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}
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/* Kernel DVB framework calls this when the feed needs to stop. */
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static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
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{
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struct dvb_demux *demux = feed->demux;
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struct cx18_stream *stream = (struct cx18_stream *)demux->priv;
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struct cx18 *cx = stream->cx;
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int ret = -EINVAL;
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CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
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feed->pid, feed->index);
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if (stream) {
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mutex_lock(&stream->dvb.feedlock);
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if (--stream->dvb.feeding == 0) {
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CX18_DEBUG_INFO("Stopping Transport DMA\n");
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ret = cx18_stop_v4l2_encode_stream(stream, 0);
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} else
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ret = 0;
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mutex_unlock(&stream->dvb.feedlock);
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}
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return ret;
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}
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int cx18_dvb_register(struct cx18_stream *stream)
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{
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struct cx18 *cx = stream->cx;
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struct cx18_dvb *dvb = &stream->dvb;
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struct dvb_adapter *dvb_adapter;
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struct dvb_demux *dvbdemux;
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struct dmx_demux *dmx;
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int ret;
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if (!dvb)
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return -EINVAL;
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ret = dvb_register_adapter(&dvb->dvb_adapter,
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CX18_DRIVER_NAME,
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THIS_MODULE, &cx->pci_dev->dev, adapter_nr);
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if (ret < 0)
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goto err_out;
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dvb_adapter = &dvb->dvb_adapter;
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dvbdemux = &dvb->demux;
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dvbdemux->priv = (void *)stream;
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dvbdemux->filternum = 256;
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dvbdemux->feednum = 256;
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dvbdemux->start_feed = cx18_dvb_start_feed;
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dvbdemux->stop_feed = cx18_dvb_stop_feed;
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dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
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DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
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ret = dvb_dmx_init(dvbdemux);
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if (ret < 0)
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goto err_dvb_unregister_adapter;
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dmx = &dvbdemux->dmx;
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dvb->hw_frontend.source = DMX_FRONTEND_0;
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dvb->mem_frontend.source = DMX_MEMORY_FE;
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dvb->dmxdev.filternum = 256;
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dvb->dmxdev.demux = dmx;
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ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter);
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if (ret < 0)
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goto err_dvb_dmx_release;
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ret = dmx->add_frontend(dmx, &dvb->hw_frontend);
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if (ret < 0)
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goto err_dvb_dmxdev_release;
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ret = dmx->add_frontend(dmx, &dvb->mem_frontend);
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if (ret < 0)
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goto err_remove_hw_frontend;
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ret = dmx->connect_frontend(dmx, &dvb->hw_frontend);
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if (ret < 0)
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goto err_remove_mem_frontend;
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ret = dvb_register(stream);
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if (ret < 0)
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goto err_disconnect_frontend;
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dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx);
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CX18_INFO("DVB Frontend registered\n");
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CX18_INFO("Registered DVB adapter%d for %s (%d x %d kB)\n",
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stream->dvb.dvb_adapter.num, stream->name,
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stream->buffers, stream->buf_size/1024);
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mutex_init(&dvb->feedlock);
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dvb->enabled = 1;
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return ret;
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err_disconnect_frontend:
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dmx->disconnect_frontend(dmx);
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err_remove_mem_frontend:
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dmx->remove_frontend(dmx, &dvb->mem_frontend);
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err_remove_hw_frontend:
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dmx->remove_frontend(dmx, &dvb->hw_frontend);
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err_dvb_dmxdev_release:
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dvb_dmxdev_release(&dvb->dmxdev);
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err_dvb_dmx_release:
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dvb_dmx_release(dvbdemux);
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err_dvb_unregister_adapter:
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dvb_unregister_adapter(dvb_adapter);
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err_out:
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return ret;
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}
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void cx18_dvb_unregister(struct cx18_stream *stream)
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{
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struct cx18 *cx = stream->cx;
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struct cx18_dvb *dvb = &stream->dvb;
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struct dvb_adapter *dvb_adapter;
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struct dvb_demux *dvbdemux;
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struct dmx_demux *dmx;
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CX18_INFO("unregister DVB\n");
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dvb_adapter = &dvb->dvb_adapter;
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dvbdemux = &dvb->demux;
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dmx = &dvbdemux->dmx;
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dmx->close(dmx);
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dvb_net_release(&dvb->dvbnet);
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dmx->remove_frontend(dmx, &dvb->mem_frontend);
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dmx->remove_frontend(dmx, &dvb->hw_frontend);
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dvb_dmxdev_release(&dvb->dmxdev);
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dvb_dmx_release(dvbdemux);
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dvb_unregister_frontend(dvb->fe);
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dvb_frontend_detach(dvb->fe);
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dvb_unregister_adapter(dvb_adapter);
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}
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/* All the DVB attach calls go here, this function get's modified
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* for each new card. No other function in this file needs
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* to change.
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*/
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static int dvb_register(struct cx18_stream *stream)
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{
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struct cx18_dvb *dvb = &stream->dvb;
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struct cx18 *cx = stream->cx;
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int ret = 0;
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switch (cx->card->type) {
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case CX18_CARD_HVR_1600_ESMT:
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case CX18_CARD_HVR_1600_SAMSUNG:
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dvb->fe = dvb_attach(s5h1409_attach,
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&hauppauge_hvr1600_config,
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&cx->i2c_adap[0]);
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if (dvb->fe != NULL) {
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dvb_attach(mxl5005s_attach, dvb->fe,
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&cx->i2c_adap[0],
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&hauppauge_hvr1600_tuner);
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ret = 0;
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}
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break;
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default:
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/* No Digital Tv Support */
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break;
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}
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if (dvb->fe == NULL) {
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CX18_ERR("frontend initialization failed\n");
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return -1;
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}
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ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe);
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if (ret < 0) {
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if (dvb->fe->ops.release)
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dvb->fe->ops.release(dvb->fe);
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return ret;
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}
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return ret;
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}
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