1 files changed, 299 insertions, 0 deletions

diff --git a/drivers/media/dvb/mantis/mantis_dvb.c b/drivers/media/dvb/mantis/mantis_dvb.c
new file mode 100644
index 00000000000..e5180e45d31
--- /dev/null
+++ b/drivers/media/dvb/mantis/mantis_dvb.c
@@ -0,0 +1,299 @@
+/*
+        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);
+        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);