2 * cx18 functions for DVB support
4 * Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "cx18-version.h"
24 #include "cx18-streams.h"
25 #include "cx18-cards.h"
28 /* Wait until the MXL500X driver is merged */
33 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
35 #define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
38 static struct mxl500x_config hauppauge_hvr1600_tuner = {
39 .delsys = MXL500x_MODE_ATSC,
40 .octf = MXL500x_OCTF_CH,
41 .xtal_freq = 16000000,
43 .ref_freq = 322800000,
44 .rssi_ena = MXL_RSSI_ENABLE,
48 static struct s5h1409_config hauppauge_hvr1600_config = {
49 .demod_address = 0x32 >> 1,
50 .output_mode = S5H1409_SERIAL_OUTPUT,
51 .gpio = S5H1409_GPIO_ON,
53 .inversion = S5H1409_INVERSION_OFF,
54 .status_mode = S5H1409_DEMODLOCKING,
55 .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
60 static int dvb_register(struct cx18_stream *stream);
62 /* Kernel DVB framework calls this when the feed needs to start.
63 * The CX18 framework should enable the transport DMA handling
64 * and queue processing.
66 static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
68 struct dvb_demux *demux = feed->demux;
69 struct cx18_stream *stream = (struct cx18_stream *) demux->priv;
70 struct cx18 *cx = stream->cx;
74 CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
75 feed->pid, feed->index);
76 switch (cx->card->type) {
77 case CX18_CARD_HVR_1600_ESMT:
78 case CX18_CARD_HVR_1600_SAMSUNG:
79 v = read_reg(CX18_REG_DMUX_NUM_PORT_0_CONTROL);
80 v |= 0x00400000; /* Serial Mode */
81 v |= 0x00002000; /* Data Length - Byte */
82 v |= 0x00010000; /* Error - Polarity */
83 v |= 0x00020000; /* Error - Passthru */
84 v |= 0x000c0000; /* Error - Ignore */
85 write_reg(v, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
89 /* Assumption - Parallel transport - Signalling
90 * undefined or default.
95 if (!demux->dmx.frontend)
99 mutex_lock(&stream->dvb.feedlock);
100 if (stream->dvb.feeding++ == 0) {
101 CX18_DEBUG_INFO("Starting Transport DMA\n");
102 ret = cx18_start_v4l2_encode_stream(stream);
105 mutex_unlock(&stream->dvb.feedlock);
111 /* Kernel DVB framework calls this when the feed needs to stop. */
112 static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
114 struct dvb_demux *demux = feed->demux;
115 struct cx18_stream *stream = (struct cx18_stream *)demux->priv;
116 struct cx18 *cx = stream->cx;
119 CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
120 feed->pid, feed->index);
123 mutex_lock(&stream->dvb.feedlock);
124 if (--stream->dvb.feeding == 0) {
125 CX18_DEBUG_INFO("Stopping Transport DMA\n");
126 ret = cx18_stop_v4l2_encode_stream(stream, 0);
129 mutex_unlock(&stream->dvb.feedlock);
135 int cx18_dvb_register(struct cx18_stream *stream)
137 struct cx18 *cx = stream->cx;
138 struct cx18_dvb *dvb = &stream->dvb;
139 struct dvb_adapter *dvb_adapter;
140 struct dvb_demux *dvbdemux;
141 struct dmx_demux *dmx;
147 ret = dvb_register_adapter(&dvb->dvb_adapter,
149 THIS_MODULE, &cx->dev->dev, adapter_nr);
153 dvb_adapter = &dvb->dvb_adapter;
155 dvbdemux = &dvb->demux;
157 dvbdemux->priv = (void *)stream;
159 dvbdemux->filternum = 256;
160 dvbdemux->feednum = 256;
161 dvbdemux->start_feed = cx18_dvb_start_feed;
162 dvbdemux->stop_feed = cx18_dvb_stop_feed;
163 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
164 DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
165 ret = dvb_dmx_init(dvbdemux);
167 goto err_dvb_unregister_adapter;
169 dmx = &dvbdemux->dmx;
171 dvb->hw_frontend.source = DMX_FRONTEND_0;
172 dvb->mem_frontend.source = DMX_MEMORY_FE;
173 dvb->dmxdev.filternum = 256;
174 dvb->dmxdev.demux = dmx;
176 ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter);
178 goto err_dvb_dmx_release;
180 ret = dmx->add_frontend(dmx, &dvb->hw_frontend);
182 goto err_dvb_dmxdev_release;
184 ret = dmx->add_frontend(dmx, &dvb->mem_frontend);
186 goto err_remove_hw_frontend;
188 ret = dmx->connect_frontend(dmx, &dvb->hw_frontend);
190 goto err_remove_mem_frontend;
192 ret = dvb_register(stream);
194 goto err_disconnect_frontend;
196 dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx);
198 CX18_INFO("DVB Frontend registered\n");
199 mutex_init(&dvb->feedlock);
203 err_disconnect_frontend:
204 dmx->disconnect_frontend(dmx);
205 err_remove_mem_frontend:
206 dmx->remove_frontend(dmx, &dvb->mem_frontend);
207 err_remove_hw_frontend:
208 dmx->remove_frontend(dmx, &dvb->hw_frontend);
209 err_dvb_dmxdev_release:
210 dvb_dmxdev_release(&dvb->dmxdev);
212 dvb_dmx_release(dvbdemux);
213 err_dvb_unregister_adapter:
214 dvb_unregister_adapter(dvb_adapter);
219 void cx18_dvb_unregister(struct cx18_stream *stream)
221 struct cx18 *cx = stream->cx;
222 struct cx18_dvb *dvb = &stream->dvb;
223 struct dvb_adapter *dvb_adapter;
224 struct dvb_demux *dvbdemux;
225 struct dmx_demux *dmx;
227 CX18_INFO("unregister DVB\n");
229 dvb_adapter = &dvb->dvb_adapter;
230 dvbdemux = &dvb->demux;
231 dmx = &dvbdemux->dmx;
234 dvb_net_release(&dvb->dvbnet);
235 dmx->remove_frontend(dmx, &dvb->mem_frontend);
236 dmx->remove_frontend(dmx, &dvb->hw_frontend);
237 dvb_dmxdev_release(&dvb->dmxdev);
238 dvb_dmx_release(dvbdemux);
239 dvb_unregister_frontend(dvb->fe);
240 dvb_frontend_detach(dvb->fe);
241 dvb_unregister_adapter(dvb_adapter);
244 /* All the DVB attach calls go here, this function get's modified
245 * for each new card. No other function in this file needs
248 static int dvb_register(struct cx18_stream *stream)
250 struct cx18_dvb *dvb = &stream->dvb;
251 struct cx18 *cx = stream->cx;
254 switch (cx->card->type) {
255 /* Wait until the MXL500X driver is merged */
257 case CX18_CARD_HVR_1600_ESMT:
258 case CX18_CARD_HVR_1600_SAMSUNG:
259 dvb->fe = dvb_attach(s5h1409_attach,
260 &hauppauge_hvr1600_config,
262 if (dvb->fe != NULL) {
263 dvb_attach(mxl500x_attach, dvb->fe,
264 &hauppauge_hvr1600_tuner,
271 /* No Digital Tv Support */
275 if (dvb->fe == NULL) {
276 CX18_ERR("frontend initialization failed\n");
280 ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe);
282 if (dvb->fe->ops.release)
283 dvb->fe->ops.release(dvb->fe);