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path: root/drivers/media/pci/mantis/mantis_dvb.c
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Diffstat (limited to 'drivers/media/pci/mantis/mantis_dvb.c')
-rw-r--r--drivers/media/pci/mantis/mantis_dvb.c301
1 files changed, 301 insertions, 0 deletions
diff --git a/drivers/media/pci/mantis/mantis_dvb.c b/drivers/media/pci/mantis/mantis_dvb.c
new file mode 100644
index 00000000000..5d15c6b74d9
--- /dev/null
+++ b/drivers/media/pci/mantis/mantis_dvb.c
@@ -0,0 +1,301 @@
+/*
+ Mantis PCI bridge driver
+ Copyright (C) Manu Abraham (abraham.manu@gmail.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 <linux/kernel.h>
+#include <linux/bitops.h>
+
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/i2c.h>
+
+#include "dmxdev.h"
+#include "dvbdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+#include "dvb_net.h"
+
+#include "mantis_common.h"
+#include "mantis_dma.h"
+#include "mantis_ca.h"
+#include "mantis_ioc.h"
+#include "mantis_dvb.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+int mantis_frontend_power(struct mantis_pci *mantis, enum mantis_power power)
+{
+ struct mantis_hwconfig *config = mantis->hwconfig;
+
+ switch (power) {
+ case POWER_ON:
+ dprintk(MANTIS_DEBUG, 1, "Power ON");
+ mantis_gpio_set_bits(mantis, config->power, POWER_ON);
+ msleep(100);
+ mantis_gpio_set_bits(mantis, config->power, POWER_ON);
+ msleep(100);
+ break;
+
+ case POWER_OFF:
+ dprintk(MANTIS_DEBUG, 1, "Power OFF");
+ mantis_gpio_set_bits(mantis, config->power, POWER_OFF);
+ msleep(100);
+ break;
+
+ default:
+ dprintk(MANTIS_DEBUG, 1, "Unknown state <%02x>", power);
+ return -1;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mantis_frontend_power);
+
+void mantis_frontend_soft_reset(struct mantis_pci *mantis)
+{
+ struct mantis_hwconfig *config = mantis->hwconfig;
+
+ dprintk(MANTIS_DEBUG, 1, "Frontend RESET");
+ mantis_gpio_set_bits(mantis, config->reset, 0);
+ msleep(100);
+ mantis_gpio_set_bits(mantis, config->reset, 0);
+ msleep(100);
+ mantis_gpio_set_bits(mantis, config->reset, 1);
+ msleep(100);
+ mantis_gpio_set_bits(mantis, config->reset, 1);
+ msleep(100);
+
+ return;
+}
+EXPORT_SYMBOL_GPL(mantis_frontend_soft_reset);
+
+static int mantis_frontend_shutdown(struct mantis_pci *mantis)
+{
+ int err;
+
+ mantis_frontend_soft_reset(mantis);
+ err = mantis_frontend_power(mantis, POWER_OFF);
+ if (err != 0) {
+ dprintk(MANTIS_ERROR, 1, "Frontend POWER OFF failed! <%d>", err);
+ return 1;
+ }
+
+ return 0;
+}
+
+static int mantis_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+ struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
+ struct mantis_pci *mantis = dvbdmx->priv;
+
+ dprintk(MANTIS_DEBUG, 1, "Mantis DVB Start feed");
+ if (!dvbdmx->dmx.frontend) {
+ dprintk(MANTIS_DEBUG, 1, "no frontend ?");
+ return -EINVAL;
+ }
+
+ mantis->feeds++;
+ dprintk(MANTIS_DEBUG, 1, "mantis start feed, feeds=%d", mantis->feeds);
+
+ if (mantis->feeds == 1) {
+ dprintk(MANTIS_DEBUG, 1, "mantis start feed & dma");
+ mantis_dma_start(mantis);
+ tasklet_enable(&mantis->tasklet);
+ }
+
+ return mantis->feeds;
+}
+
+static int mantis_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+ struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
+ struct mantis_pci *mantis = dvbdmx->priv;
+
+ dprintk(MANTIS_DEBUG, 1, "Mantis DVB Stop feed");
+ if (!dvbdmx->dmx.frontend) {
+ dprintk(MANTIS_DEBUG, 1, "no frontend ?");
+ return -EINVAL;
+ }
+
+ mantis->feeds--;
+ if (mantis->feeds == 0) {
+ dprintk(MANTIS_DEBUG, 1, "mantis stop feed and dma");
+ tasklet_disable(&mantis->tasklet);
+ mantis_dma_stop(mantis);
+ }
+
+ return 0;
+}
+
+int __devinit mantis_dvb_init(struct mantis_pci *mantis)
+{
+ struct mantis_hwconfig *config = mantis->hwconfig;
+ int result = -1;
+
+ dprintk(MANTIS_DEBUG, 1, "dvb_register_adapter");
+
+ result = dvb_register_adapter(&mantis->dvb_adapter,
+ "Mantis DVB adapter",
+ THIS_MODULE,
+ &mantis->pdev->dev,
+ adapter_nr);
+
+ if (result < 0) {
+
+ dprintk(MANTIS_ERROR, 1, "Error registering adapter");
+ return -ENODEV;
+ }
+
+ mantis->dvb_adapter.priv = mantis;
+ mantis->demux.dmx.capabilities = DMX_TS_FILTERING |
+ DMX_SECTION_FILTERING |
+ DMX_MEMORY_BASED_FILTERING;
+
+ mantis->demux.priv = mantis;
+ mantis->demux.filternum = 256;
+ mantis->demux.feednum = 256;
+ mantis->demux.start_feed = mantis_dvb_start_feed;
+ mantis->demux.stop_feed = mantis_dvb_stop_feed;
+ mantis->demux.write_to_decoder = NULL;
+
+ dprintk(MANTIS_DEBUG, 1, "dvb_dmx_init");
+ result = dvb_dmx_init(&mantis->demux);
+ if (result < 0) {
+ dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
+
+ goto err0;
+ }
+
+ mantis->dmxdev.filternum = 256;
+ mantis->dmxdev.demux = &mantis->demux.dmx;
+ mantis->dmxdev.capabilities = 0;
+ dprintk(MANTIS_DEBUG, 1, "dvb_dmxdev_init");
+
+ result = dvb_dmxdev_init(&mantis->dmxdev, &mantis->dvb_adapter);
+ if (result < 0) {
+
+ dprintk(MANTIS_ERROR, 1, "dvb_dmxdev_init failed, ERROR=%d", result);
+ goto err1;
+ }
+
+ mantis->fe_hw.source = DMX_FRONTEND_0;
+ result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_hw);
+ if (result < 0) {
+
+ dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
+ goto err2;
+ }
+
+ mantis->fe_mem.source = DMX_MEMORY_FE;
+ result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_mem);
+ if (result < 0) {
+ dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
+ goto err3;
+ }
+
+ result = mantis->demux.dmx.connect_frontend(&mantis->demux.dmx, &mantis->fe_hw);
+ if (result < 0) {
+ dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
+ goto err4;
+ }
+
+ dvb_net_init(&mantis->dvb_adapter, &mantis->dvbnet, &mantis->demux.dmx);
+ tasklet_init(&mantis->tasklet, mantis_dma_xfer, (unsigned long) mantis);
+ tasklet_disable(&mantis->tasklet);
+ if (mantis->hwconfig) {
+ result = config->frontend_init(mantis, mantis->fe);
+ if (result < 0) {
+ dprintk(MANTIS_ERROR, 1, "!!! NO Frontends found !!!");
+ goto err5;
+ } else {
+ if (mantis->fe == NULL) {
+ dprintk(MANTIS_ERROR, 1, "FE <NULL>");
+ goto err5;
+ }
+
+ if (dvb_register_frontend(&mantis->dvb_adapter, mantis->fe)) {
+ dprintk(MANTIS_ERROR, 1, "ERROR: Frontend registration failed");
+
+ if (mantis->fe->ops.release)
+ mantis->fe->ops.release(mantis->fe);
+
+ mantis->fe = NULL;
+ goto err5;
+ }
+ }
+ }
+
+ return 0;
+
+ /* Error conditions .. */
+err5:
+ tasklet_kill(&mantis->tasklet);
+ dvb_net_release(&mantis->dvbnet);
+ if (mantis->fe) {
+ dvb_unregister_frontend(mantis->fe);
+ dvb_frontend_detach(mantis->fe);
+ }
+err4:
+ mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
+
+err3:
+ mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
+
+err2:
+ dvb_dmxdev_release(&mantis->dmxdev);
+
+err1:
+ dvb_dmx_release(&mantis->demux);
+
+err0:
+ dvb_unregister_adapter(&mantis->dvb_adapter);
+
+ return result;
+}
+EXPORT_SYMBOL_GPL(mantis_dvb_init);
+
+int __devexit mantis_dvb_exit(struct mantis_pci *mantis)
+{
+ int err;
+
+ if (mantis->fe) {
+ /* mantis_ca_exit(mantis); */
+ err = mantis_frontend_shutdown(mantis);
+ if (err != 0)
+ dprintk(MANTIS_ERROR, 1, "Frontend exit while POWER ON! <%d>", err);
+ dvb_unregister_frontend(mantis->fe);
+ dvb_frontend_detach(mantis->fe);
+ }
+
+ tasklet_kill(&mantis->tasklet);
+ dvb_net_release(&mantis->dvbnet);
+
+ mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
+ mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
+
+ dvb_dmxdev_release(&mantis->dmxdev);
+ dvb_dmx_release(&mantis->demux);
+
+ dprintk(MANTIS_DEBUG, 1, "dvb_unregister_adapter");
+ dvb_unregister_adapter(&mantis->dvb_adapter);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mantis_dvb_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-18 12:58:57 +0000