// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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Mantis PCI bridge driver
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Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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*/
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#include <linux/kernel.h>
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#include <linux/bitops.h>
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#include <linux/signal.h>
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/i2c.h>
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#include <media/dmxdev.h>
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#include <media/dvbdev.h>
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#include <media/dvb_demux.h>
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#include <media/dvb_frontend.h>
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#include <media/dvb_net.h>
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#include "mantis_common.h"
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#include "mantis_dma.h"
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#include "mantis_ca.h"
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#include "mantis_ioc.h"
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#include "mantis_dvb.h"
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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int mantis_frontend_power(struct mantis_pci *mantis, enum mantis_power power)
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{
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struct mantis_hwconfig *config = mantis->hwconfig;
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switch (power) {
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case POWER_ON:
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dprintk(MANTIS_DEBUG, 1, "Power ON");
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mantis_gpio_set_bits(mantis, config->power, POWER_ON);
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msleep(100);
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mantis_gpio_set_bits(mantis, config->power, POWER_ON);
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msleep(100);
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break;
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case POWER_OFF:
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dprintk(MANTIS_DEBUG, 1, "Power OFF");
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mantis_gpio_set_bits(mantis, config->power, POWER_OFF);
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msleep(100);
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break;
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default:
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dprintk(MANTIS_DEBUG, 1, "Unknown state <%02x>", power);
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return -1;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(mantis_frontend_power);
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void mantis_frontend_soft_reset(struct mantis_pci *mantis)
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{
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struct mantis_hwconfig *config = mantis->hwconfig;
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dprintk(MANTIS_DEBUG, 1, "Frontend RESET");
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mantis_gpio_set_bits(mantis, config->reset, 0);
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msleep(100);
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mantis_gpio_set_bits(mantis, config->reset, 0);
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msleep(100);
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mantis_gpio_set_bits(mantis, config->reset, 1);
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msleep(100);
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mantis_gpio_set_bits(mantis, config->reset, 1);
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msleep(100);
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return;
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}
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EXPORT_SYMBOL_GPL(mantis_frontend_soft_reset);
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static int mantis_frontend_shutdown(struct mantis_pci *mantis)
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{
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int err;
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mantis_frontend_soft_reset(mantis);
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err = mantis_frontend_power(mantis, POWER_OFF);
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if (err != 0) {
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dprintk(MANTIS_ERROR, 1, "Frontend POWER OFF failed! <%d>", err);
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return 1;
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}
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return 0;
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}
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static int mantis_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
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{
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struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
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struct mantis_pci *mantis = dvbdmx->priv;
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dprintk(MANTIS_DEBUG, 1, "Mantis DVB Start feed");
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if (!dvbdmx->dmx.frontend) {
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dprintk(MANTIS_DEBUG, 1, "no frontend ?");
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return -EINVAL;
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}
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mantis->feeds++;
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dprintk(MANTIS_DEBUG, 1, "mantis start feed, feeds=%d", mantis->feeds);
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if (mantis->feeds == 1) {
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dprintk(MANTIS_DEBUG, 1, "mantis start feed & dma");
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mantis_dma_start(mantis);
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tasklet_enable(&mantis->tasklet);
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}
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return mantis->feeds;
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}
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static int mantis_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
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{
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struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
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struct mantis_pci *mantis = dvbdmx->priv;
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dprintk(MANTIS_DEBUG, 1, "Mantis DVB Stop feed");
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if (!dvbdmx->dmx.frontend) {
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dprintk(MANTIS_DEBUG, 1, "no frontend ?");
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return -EINVAL;
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}
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mantis->feeds--;
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if (mantis->feeds == 0) {
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dprintk(MANTIS_DEBUG, 1, "mantis stop feed and dma");
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tasklet_disable(&mantis->tasklet);
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mantis_dma_stop(mantis);
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}
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return 0;
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}
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int mantis_dvb_init(struct mantis_pci *mantis)
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{
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struct mantis_hwconfig *config = mantis->hwconfig;
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int result;
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dprintk(MANTIS_DEBUG, 1, "dvb_register_adapter");
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result = dvb_register_adapter(&mantis->dvb_adapter,
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"Mantis DVB adapter",
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THIS_MODULE,
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&mantis->pdev->dev,
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adapter_nr);
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if (result < 0) {
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dprintk(MANTIS_ERROR, 1, "Error registering adapter");
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return -ENODEV;
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}
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mantis->dvb_adapter.priv = mantis;
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mantis->demux.dmx.capabilities = DMX_TS_FILTERING |
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DMX_SECTION_FILTERING |
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DMX_MEMORY_BASED_FILTERING;
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mantis->demux.priv = mantis;
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mantis->demux.filternum = 256;
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mantis->demux.feednum = 256;
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mantis->demux.start_feed = mantis_dvb_start_feed;
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mantis->demux.stop_feed = mantis_dvb_stop_feed;
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mantis->demux.write_to_decoder = NULL;
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dprintk(MANTIS_DEBUG, 1, "dvb_dmx_init");
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result = dvb_dmx_init(&mantis->demux);
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if (result < 0) {
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dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
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goto err0;
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}
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mantis->dmxdev.filternum = 256;
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mantis->dmxdev.demux = &mantis->demux.dmx;
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mantis->dmxdev.capabilities = 0;
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dprintk(MANTIS_DEBUG, 1, "dvb_dmxdev_init");
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result = dvb_dmxdev_init(&mantis->dmxdev, &mantis->dvb_adapter);
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if (result < 0) {
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dprintk(MANTIS_ERROR, 1, "dvb_dmxdev_init failed, ERROR=%d", result);
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goto err1;
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}
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mantis->fe_hw.source = DMX_FRONTEND_0;
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result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_hw);
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if (result < 0) {
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dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
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goto err2;
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}
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mantis->fe_mem.source = DMX_MEMORY_FE;
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result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_mem);
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if (result < 0) {
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dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
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goto err3;
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}
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result = mantis->demux.dmx.connect_frontend(&mantis->demux.dmx, &mantis->fe_hw);
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if (result < 0) {
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dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
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goto err4;
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}
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dvb_net_init(&mantis->dvb_adapter, &mantis->dvbnet, &mantis->demux.dmx);
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tasklet_setup(&mantis->tasklet, mantis_dma_xfer);
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tasklet_disable(&mantis->tasklet);
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if (mantis->hwconfig) {
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result = config->frontend_init(mantis, mantis->fe);
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if (result < 0) {
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dprintk(MANTIS_ERROR, 1, "!!! NO Frontends found !!!");
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goto err5;
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} else {
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if (mantis->fe == NULL) {
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result = -ENOMEM;
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dprintk(MANTIS_ERROR, 1, "FE <NULL>");
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goto err5;
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}
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result = dvb_register_frontend(&mantis->dvb_adapter, mantis->fe);
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if (result) {
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dprintk(MANTIS_ERROR, 1, "ERROR: Frontend registration failed");
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if (mantis->fe->ops.release)
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mantis->fe->ops.release(mantis->fe);
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mantis->fe = NULL;
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goto err5;
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}
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}
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}
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return 0;
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/* Error conditions .. */
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err5:
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tasklet_kill(&mantis->tasklet);
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dvb_net_release(&mantis->dvbnet);
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if (mantis->fe) {
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dvb_unregister_frontend(mantis->fe);
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dvb_frontend_detach(mantis->fe);
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}
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err4:
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mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
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err3:
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mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
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err2:
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dvb_dmxdev_release(&mantis->dmxdev);
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err1:
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dvb_dmx_release(&mantis->demux);
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err0:
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dvb_unregister_adapter(&mantis->dvb_adapter);
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return result;
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}
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EXPORT_SYMBOL_GPL(mantis_dvb_init);
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int mantis_dvb_exit(struct mantis_pci *mantis)
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{
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int err;
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if (mantis->fe) {
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/* mantis_ca_exit(mantis); */
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err = mantis_frontend_shutdown(mantis);
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if (err != 0)
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dprintk(MANTIS_ERROR, 1, "Frontend exit while POWER ON! <%d>", err);
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dvb_unregister_frontend(mantis->fe);
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dvb_frontend_detach(mantis->fe);
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}
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tasklet_kill(&mantis->tasklet);
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dvb_net_release(&mantis->dvbnet);
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mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
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mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
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dvb_dmxdev_release(&mantis->dmxdev);
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dvb_dmx_release(&mantis->demux);
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dprintk(MANTIS_DEBUG, 1, "dvb_unregister_adapter");
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dvb_unregister_adapter(&mantis->dvb_adapter);
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return 0;
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}
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EXPORT_SYMBOL_GPL(mantis_dvb_exit);
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