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path: root/drivers/media/video/cx18/cx18-dvb.c
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Diffstat (limited to 'drivers/media/video/cx18/cx18-dvb.c')
-rw-r--r--drivers/media/video/cx18/cx18-dvb.c288
1 files changed, 288 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c
new file mode 100644
index 000000000000..65efe69d939a
--- /dev/null
+++ b/drivers/media/video/cx18/cx18-dvb.c
@@ -0,0 +1,288 @@
+/*
+ * 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;
+}