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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 00:13:22 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:25:07 -0300
commit0c0d06cac63ee327ceaab4b5ffe2206574ab86bd (patch)
treee759f0dc3185d97f2a0c6b5cd5e32ea6faa74d40 /drivers/media/video/pvrusb2/pvrusb2-dvb.c
parent84cfe9e79bd5ac11c963f4841158454fefa872f6 (diff)
[media] rename most media/video usb drivers to media/usb
Rename all USB drivers with their own directory under drivers/media/video into drivers/media/usb and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-dvb.c')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-dvb.c435
1 files changed, 0 insertions, 435 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-dvb.c b/drivers/media/video/pvrusb2/pvrusb2-dvb.c
deleted file mode 100644
index 8c95793433e..00000000000
--- a/drivers/media/video/pvrusb2/pvrusb2-dvb.c
+++ /dev/null
@@ -1,435 +0,0 @@
-/*
- * pvrusb2-dvb.c - linux-dvb api interface to the pvrusb2 driver.
- *
- * Copyright (C) 2007, 2008 Michael Krufky <mkrufky@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
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/kthread.h>
-#include <linux/freezer.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include "dvbdev.h"
-#include "pvrusb2-debug.h"
-#include "pvrusb2-hdw-internal.h"
-#include "pvrusb2-hdw.h"
-#include "pvrusb2-io.h"
-#include "pvrusb2-dvb.h"
-
-DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
-
-static int pvr2_dvb_feed_func(struct pvr2_dvb_adapter *adap)
-{
- int ret;
- unsigned int count;
- struct pvr2_buffer *bp;
- struct pvr2_stream *stream;
-
- pvr2_trace(PVR2_TRACE_DVB_FEED, "dvb feed thread started");
- set_freezable();
-
- stream = adap->channel.stream->stream;
-
- for (;;) {
- if (kthread_should_stop()) break;
-
- /* Not sure about this... */
- try_to_freeze();
-
- bp = pvr2_stream_get_ready_buffer(stream);
- if (bp != NULL) {
- count = pvr2_buffer_get_count(bp);
- if (count) {
- dvb_dmx_swfilter(
- &adap->demux,
- adap->buffer_storage[
- pvr2_buffer_get_id(bp)],
- count);
- } else {
- ret = pvr2_buffer_get_status(bp);
- if (ret < 0) break;
- }
- ret = pvr2_buffer_queue(bp);
- if (ret < 0) break;
-
- /* Since we know we did something to a buffer,
- just go back and try again. No point in
- blocking unless we really ran out of
- buffers to process. */
- continue;
- }
-
-
- /* Wait until more buffers become available or we're
- told not to wait any longer. */
- ret = wait_event_interruptible(
- adap->buffer_wait_data,
- (pvr2_stream_get_ready_count(stream) > 0) ||
- kthread_should_stop());
- if (ret < 0) break;
- }
-
- /* If we get here and ret is < 0, then an error has occurred.
- Probably would be a good idea to communicate that to DVB core... */
-
- pvr2_trace(PVR2_TRACE_DVB_FEED, "dvb feed thread stopped");
-
- return 0;
-}
-
-static int pvr2_dvb_feed_thread(void *data)
-{
- int stat = pvr2_dvb_feed_func(data);
- /* from videobuf-dvb.c: */
- while (!kthread_should_stop()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule();
- }
- return stat;
-}
-
-static void pvr2_dvb_notify(struct pvr2_dvb_adapter *adap)
-{
- wake_up(&adap->buffer_wait_data);
-}
-
-static void pvr2_dvb_stream_end(struct pvr2_dvb_adapter *adap)
-{
- unsigned int idx;
- struct pvr2_stream *stream;
-
- if (adap->thread) {
- kthread_stop(adap->thread);
- adap->thread = NULL;
- }
-
- if (adap->channel.stream) {
- stream = adap->channel.stream->stream;
- } else {
- stream = NULL;
- }
- if (stream) {
- pvr2_hdw_set_streaming(adap->channel.hdw, 0);
- pvr2_stream_set_callback(stream, NULL, NULL);
- pvr2_stream_kill(stream);
- pvr2_stream_set_buffer_count(stream, 0);
- pvr2_channel_claim_stream(&adap->channel, NULL);
- }
-
- if (adap->stream_run) {
- for (idx = 0; idx < PVR2_DVB_BUFFER_COUNT; idx++) {
- if (!(adap->buffer_storage[idx])) continue;
- kfree(adap->buffer_storage[idx]);
- adap->buffer_storage[idx] = NULL;
- }
- adap->stream_run = 0;
- }
-}
-
-static int pvr2_dvb_stream_do_start(struct pvr2_dvb_adapter *adap)
-{
- struct pvr2_context *pvr = adap->channel.mc_head;
- unsigned int idx;
- int ret;
- struct pvr2_buffer *bp;
- struct pvr2_stream *stream = NULL;
-
- if (adap->stream_run) return -EIO;
-
- ret = pvr2_channel_claim_stream(&adap->channel, &pvr->video_stream);
- /* somebody else already has the stream */
- if (ret < 0) return ret;
-
- stream = adap->channel.stream->stream;
-
- for (idx = 0; idx < PVR2_DVB_BUFFER_COUNT; idx++) {
- adap->buffer_storage[idx] = kmalloc(PVR2_DVB_BUFFER_SIZE,
- GFP_KERNEL);
- if (!(adap->buffer_storage[idx])) return -ENOMEM;
- }
-
- pvr2_stream_set_callback(pvr->video_stream.stream,
- (pvr2_stream_callback) pvr2_dvb_notify, adap);
-
- ret = pvr2_stream_set_buffer_count(stream, PVR2_DVB_BUFFER_COUNT);
- if (ret < 0) return ret;
-
- for (idx = 0; idx < PVR2_DVB_BUFFER_COUNT; idx++) {
- bp = pvr2_stream_get_buffer(stream, idx);
- pvr2_buffer_set_buffer(bp,
- adap->buffer_storage[idx],
- PVR2_DVB_BUFFER_SIZE);
- }
-
- ret = pvr2_hdw_set_streaming(adap->channel.hdw, 1);
- if (ret < 0) return ret;
-
- while ((bp = pvr2_stream_get_idle_buffer(stream)) != NULL) {
- ret = pvr2_buffer_queue(bp);
- if (ret < 0) return ret;
- }
-
- adap->thread = kthread_run(pvr2_dvb_feed_thread, adap, "pvrusb2-dvb");
-
- if (IS_ERR(adap->thread)) {
- ret = PTR_ERR(adap->thread);
- adap->thread = NULL;
- return ret;
- }
-
- adap->stream_run = !0;
-
- return 0;
-}
-
-static int pvr2_dvb_stream_start(struct pvr2_dvb_adapter *adap)
-{
- int ret = pvr2_dvb_stream_do_start(adap);
- if (ret < 0) pvr2_dvb_stream_end(adap);
- return ret;
-}
-
-static int pvr2_dvb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
-{
- struct pvr2_dvb_adapter *adap = dvbdmxfeed->demux->priv;
- int ret = 0;
-
- if (adap == NULL) return -ENODEV;
-
- mutex_lock(&adap->lock);
- do {
- if (onoff) {
- if (!adap->feedcount) {
- pvr2_trace(PVR2_TRACE_DVB_FEED,
- "start feeding demux");
- ret = pvr2_dvb_stream_start(adap);
- if (ret < 0) break;
- }
- (adap->feedcount)++;
- } else if (adap->feedcount > 0) {
- (adap->feedcount)--;
- if (!adap->feedcount) {
- pvr2_trace(PVR2_TRACE_DVB_FEED,
- "stop feeding demux");
- pvr2_dvb_stream_end(adap);
- }
- }
- } while (0);
- mutex_unlock(&adap->lock);
-
- return ret;
-}
-
-static int pvr2_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
-{
- pvr2_trace(PVR2_TRACE_DVB_FEED, "start pid: 0x%04x", dvbdmxfeed->pid);
- return pvr2_dvb_ctrl_feed(dvbdmxfeed, 1);
-}
-
-static int pvr2_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
-{
- pvr2_trace(PVR2_TRACE_DVB_FEED, "stop pid: 0x%04x", dvbdmxfeed->pid);
- return pvr2_dvb_ctrl_feed(dvbdmxfeed, 0);
-}
-
-static int pvr2_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
-{
- struct pvr2_dvb_adapter *adap = fe->dvb->priv;
- return pvr2_channel_limit_inputs(
- &adap->channel,
- (acquire ? (1 << PVR2_CVAL_INPUT_DTV) : 0));
-}
-
-static int pvr2_dvb_adapter_init(struct pvr2_dvb_adapter *adap)
-{
- int ret;
-
- ret = dvb_register_adapter(&adap->dvb_adap, "pvrusb2-dvb",
- THIS_MODULE/*&hdw->usb_dev->owner*/,
- &adap->channel.hdw->usb_dev->dev,
- adapter_nr);
- if (ret < 0) {
- pvr2_trace(PVR2_TRACE_ERROR_LEGS,
- "dvb_register_adapter failed: error %d", ret);
- goto err;
- }
- adap->dvb_adap.priv = adap;
-
- adap->demux.dmx.capabilities = DMX_TS_FILTERING |
- DMX_SECTION_FILTERING |
- DMX_MEMORY_BASED_FILTERING;
- adap->demux.priv = adap;
- adap->demux.filternum = 256;
- adap->demux.feednum = 256;
- adap->demux.start_feed = pvr2_dvb_start_feed;
- adap->demux.stop_feed = pvr2_dvb_stop_feed;
- adap->demux.write_to_decoder = NULL;
-
- ret = dvb_dmx_init(&adap->demux);
- if (ret < 0) {
- pvr2_trace(PVR2_TRACE_ERROR_LEGS,
- "dvb_dmx_init failed: error %d", ret);
- goto err_dmx;
- }
-
- adap->dmxdev.filternum = adap->demux.filternum;
- adap->dmxdev.demux = &adap->demux.dmx;
- adap->dmxdev.capabilities = 0;
-
- ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap);
- if (ret < 0) {
- pvr2_trace(PVR2_TRACE_ERROR_LEGS,
- "dvb_dmxdev_init failed: error %d", ret);
- goto err_dmx_dev;
- }
-
- dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx);
-
- return 0;
-
-err_dmx_dev:
- dvb_dmx_release(&adap->demux);
-err_dmx:
- dvb_unregister_adapter(&adap->dvb_adap);
-err:
- return ret;
-}
-
-static int pvr2_dvb_adapter_exit(struct pvr2_dvb_adapter *adap)
-{
- pvr2_trace(PVR2_TRACE_INFO, "unregistering DVB devices");
- dvb_net_release(&adap->dvb_net);
- adap->demux.dmx.close(&adap->demux.dmx);
- dvb_dmxdev_release(&adap->dmxdev);
- dvb_dmx_release(&adap->demux);
- dvb_unregister_adapter(&adap->dvb_adap);
- return 0;
-}
-
-static int pvr2_dvb_frontend_init(struct pvr2_dvb_adapter *adap)
-{
- struct pvr2_hdw *hdw = adap->channel.hdw;
- const struct pvr2_dvb_props *dvb_props = hdw->hdw_desc->dvb_props;
- int ret = 0;
-
- if (dvb_props == NULL) {
- pvr2_trace(PVR2_TRACE_ERROR_LEGS, "fe_props not defined!");
- return -EINVAL;
- }
-
- ret = pvr2_channel_limit_inputs(
- &adap->channel,
- (1 << PVR2_CVAL_INPUT_DTV));
- if (ret) {
- pvr2_trace(PVR2_TRACE_ERROR_LEGS,
- "failed to grab control of dtv input (code=%d)",
- ret);
- return ret;
- }
-
- if (dvb_props->frontend_attach == NULL) {
- pvr2_trace(PVR2_TRACE_ERROR_LEGS,
- "frontend_attach not defined!");
- ret = -EINVAL;
- goto done;
- }
-
- if ((dvb_props->frontend_attach(adap) == 0) && (adap->fe)) {
-
- if (dvb_register_frontend(&adap->dvb_adap, adap->fe)) {
- pvr2_trace(PVR2_TRACE_ERROR_LEGS,
- "frontend registration failed!");
- dvb_frontend_detach(adap->fe);
- adap->fe = NULL;
- ret = -ENODEV;
- goto done;
- }
-
- if (dvb_props->tuner_attach)
- dvb_props->tuner_attach(adap);
-
- if (adap->fe->ops.analog_ops.standby)
- adap->fe->ops.analog_ops.standby(adap->fe);
-
- /* Ensure all frontends negotiate bus access */
- adap->fe->ops.ts_bus_ctrl = pvr2_dvb_bus_ctrl;
-
- } else {
- pvr2_trace(PVR2_TRACE_ERROR_LEGS,
- "no frontend was attached!");
- ret = -ENODEV;
- return ret;
- }
-
- done:
- pvr2_channel_limit_inputs(&adap->channel, 0);
- return ret;
-}
-
-static int pvr2_dvb_frontend_exit(struct pvr2_dvb_adapter *adap)
-{
- if (adap->fe != NULL) {
- dvb_unregister_frontend(adap->fe);
- dvb_frontend_detach(adap->fe);
- }
- return 0;
-}
-
-static void pvr2_dvb_destroy(struct pvr2_dvb_adapter *adap)
-{
- pvr2_dvb_stream_end(adap);
- pvr2_dvb_frontend_exit(adap);
- pvr2_dvb_adapter_exit(adap);
- pvr2_channel_done(&adap->channel);
- kfree(adap);
-}
-
-static void pvr2_dvb_internal_check(struct pvr2_channel *chp)
-{
- struct pvr2_dvb_adapter *adap;
- adap = container_of(chp, struct pvr2_dvb_adapter, channel);
- if (!adap->channel.mc_head->disconnect_flag) return;
- pvr2_dvb_destroy(adap);
-}
-
-struct pvr2_dvb_adapter *pvr2_dvb_create(struct pvr2_context *pvr)
-{
- int ret = 0;
- struct pvr2_dvb_adapter *adap;
- if (!pvr->hdw->hdw_desc->dvb_props) {
- /* Device lacks a digital interface so don't set up
- the DVB side of the driver either. For now. */
- return NULL;
- }
- adap = kzalloc(sizeof(*adap), GFP_KERNEL);
- if (!adap) return adap;
- pvr2_channel_init(&adap->channel, pvr);
- adap->channel.check_func = pvr2_dvb_internal_check;
- init_waitqueue_head(&adap->buffer_wait_data);
- mutex_init(&adap->lock);
- ret = pvr2_dvb_adapter_init(adap);
- if (ret < 0) goto fail1;
- ret = pvr2_dvb_frontend_init(adap);
- if (ret < 0) goto fail2;
- return adap;
-
-fail2:
- pvr2_dvb_adapter_exit(adap);
-fail1:
- pvr2_channel_done(&adap->channel);
- return NULL;
-}
-