mirror of https://gitee.com/openkylin/linux.git
312 lines
8.6 KiB
C
312 lines
8.6 KiB
C
/*
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* Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
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* flexcop.c - main module part
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* Copyright (C) 2004-9 Patrick Boettcher <patrick.boettcher@desy.de>
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* based on skystar2-driver Copyright (C) 2003 Vadim Catana, skystar@moldova.cc
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*
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* Acknowledgements:
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* John Jurrius from BBTI, Inc. for extensive support
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* with code examples and data books
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* Bjarne Steinsbo, bjarne at steinsbo.com (some ideas for rewriting)
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*
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* Contributions to the skystar2-driver have been done by
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* Vincenzo Di Massa, hawk.it at tiscalinet.it (several DiSEqC fixes)
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* Roberto Ragusa, r.ragusa at libero.it (polishing, restyling the code)
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* Uwe Bugla, uwe.bugla at gmx.de (doing tests, restyling code, writing docu)
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* Niklas Peinecke, peinecke at gdv.uni-hannover.de (hardware pid/mac
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* filtering)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "flexcop.h"
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#define DRIVER_NAME "B2C2 FlexcopII/II(b)/III digital TV receiver chip"
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#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@desy.de"
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#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
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#define DEBSTATUS ""
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#else
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#define DEBSTATUS " (debugging is not enabled)"
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#endif
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int b2c2_flexcop_debug;
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module_param_named(debug, b2c2_flexcop_debug, int, 0644);
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MODULE_PARM_DESC(debug,
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"set debug level (1=info,2=tuner,4=i2c,8=ts,"
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"16=sram,32=reg (|-able))."
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DEBSTATUS);
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#undef DEBSTATUS
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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/* global zero for ibi values */
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flexcop_ibi_value ibi_zero;
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static int flexcop_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
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{
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struct flexcop_device *fc = dvbdmxfeed->demux->priv;
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return flexcop_pid_feed_control(fc, dvbdmxfeed, 1);
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}
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static int flexcop_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
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{
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struct flexcop_device *fc = dvbdmxfeed->demux->priv;
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return flexcop_pid_feed_control(fc, dvbdmxfeed, 0);
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}
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static int flexcop_dvb_init(struct flexcop_device *fc)
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{
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int ret = dvb_register_adapter(&fc->dvb_adapter,
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"FlexCop Digital TV device", fc->owner,
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fc->dev, adapter_nr);
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if (ret < 0) {
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err("error registering DVB adapter");
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return ret;
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}
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fc->dvb_adapter.priv = fc;
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fc->demux.dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING
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| DMX_MEMORY_BASED_FILTERING);
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fc->demux.priv = fc;
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fc->demux.filternum = fc->demux.feednum = FC_MAX_FEED;
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fc->demux.start_feed = flexcop_dvb_start_feed;
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fc->demux.stop_feed = flexcop_dvb_stop_feed;
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fc->demux.write_to_decoder = NULL;
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if ((ret = dvb_dmx_init(&fc->demux)) < 0) {
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err("dvb_dmx failed: error %d", ret);
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goto err_dmx;
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}
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fc->hw_frontend.source = DMX_FRONTEND_0;
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fc->dmxdev.filternum = fc->demux.feednum;
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fc->dmxdev.demux = &fc->demux.dmx;
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fc->dmxdev.capabilities = 0;
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if ((ret = dvb_dmxdev_init(&fc->dmxdev, &fc->dvb_adapter)) < 0) {
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err("dvb_dmxdev_init failed: error %d", ret);
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goto err_dmx_dev;
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}
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if ((ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->hw_frontend)) < 0) {
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err("adding hw_frontend to dmx failed: error %d", ret);
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goto err_dmx_add_hw_frontend;
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}
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fc->mem_frontend.source = DMX_MEMORY_FE;
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if ((ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->mem_frontend)) < 0) {
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err("adding mem_frontend to dmx failed: error %d", ret);
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goto err_dmx_add_mem_frontend;
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}
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if ((ret = fc->demux.dmx.connect_frontend(&fc->demux.dmx, &fc->hw_frontend)) < 0) {
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err("connect frontend failed: error %d", ret);
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goto err_connect_frontend;
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}
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dvb_net_init(&fc->dvb_adapter, &fc->dvbnet, &fc->demux.dmx);
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fc->init_state |= FC_STATE_DVB_INIT;
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return 0;
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err_connect_frontend:
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fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->mem_frontend);
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err_dmx_add_mem_frontend:
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fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->hw_frontend);
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err_dmx_add_hw_frontend:
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dvb_dmxdev_release(&fc->dmxdev);
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err_dmx_dev:
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dvb_dmx_release(&fc->demux);
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err_dmx:
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dvb_unregister_adapter(&fc->dvb_adapter);
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return ret;
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}
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static void flexcop_dvb_exit(struct flexcop_device *fc)
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{
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if (fc->init_state & FC_STATE_DVB_INIT) {
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dvb_net_release(&fc->dvbnet);
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fc->demux.dmx.close(&fc->demux.dmx);
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fc->demux.dmx.remove_frontend(&fc->demux.dmx,
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&fc->mem_frontend);
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fc->demux.dmx.remove_frontend(&fc->demux.dmx,
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&fc->hw_frontend);
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dvb_dmxdev_release(&fc->dmxdev);
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dvb_dmx_release(&fc->demux);
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dvb_unregister_adapter(&fc->dvb_adapter);
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deb_info("deinitialized dvb stuff\n");
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}
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fc->init_state &= ~FC_STATE_DVB_INIT;
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}
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/* these methods are necessary to achieve the long-term-goal of hiding the
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* struct flexcop_device from the bus-parts */
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void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len)
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{
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dvb_dmx_swfilter(&fc->demux, buf, len);
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}
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EXPORT_SYMBOL(flexcop_pass_dmx_data);
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void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no)
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{
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dvb_dmx_swfilter_packets(&fc->demux, buf, no);
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}
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EXPORT_SYMBOL(flexcop_pass_dmx_packets);
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static void flexcop_reset(struct flexcop_device *fc)
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{
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flexcop_ibi_value v210, v204;
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/* reset the flexcop itself */
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fc->write_ibi_reg(fc,ctrl_208,ibi_zero);
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v210.raw = 0;
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v210.sw_reset_210.reset_block_000 = 1;
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v210.sw_reset_210.reset_block_100 = 1;
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v210.sw_reset_210.reset_block_200 = 1;
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v210.sw_reset_210.reset_block_300 = 1;
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v210.sw_reset_210.reset_block_400 = 1;
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v210.sw_reset_210.reset_block_500 = 1;
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v210.sw_reset_210.reset_block_600 = 1;
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v210.sw_reset_210.reset_block_700 = 1;
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v210.sw_reset_210.Block_reset_enable = 0xb2;
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v210.sw_reset_210.Special_controls = 0xc259;
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fc->write_ibi_reg(fc,sw_reset_210,v210);
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msleep(1);
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/* reset the periphical devices */
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v204 = fc->read_ibi_reg(fc,misc_204);
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v204.misc_204.Per_reset_sig = 0;
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fc->write_ibi_reg(fc,misc_204,v204);
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msleep(1);
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v204.misc_204.Per_reset_sig = 1;
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fc->write_ibi_reg(fc,misc_204,v204);
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}
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void flexcop_reset_block_300(struct flexcop_device *fc)
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{
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flexcop_ibi_value v208_save = fc->read_ibi_reg(fc, ctrl_208),
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v210 = fc->read_ibi_reg(fc, sw_reset_210);
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deb_rdump("208: %08x, 210: %08x\n", v208_save.raw, v210.raw);
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fc->write_ibi_reg(fc,ctrl_208,ibi_zero);
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v210.sw_reset_210.reset_block_300 = 1;
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v210.sw_reset_210.Block_reset_enable = 0xb2;
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fc->write_ibi_reg(fc,sw_reset_210,v210);
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fc->write_ibi_reg(fc,ctrl_208,v208_save);
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}
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struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len)
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{
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void *bus;
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struct flexcop_device *fc = kzalloc(sizeof(struct flexcop_device),
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GFP_KERNEL);
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if (!fc) {
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err("no memory");
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return NULL;
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}
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bus = kzalloc(bus_specific_len, GFP_KERNEL);
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if (!bus) {
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err("no memory");
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kfree(fc);
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return NULL;
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}
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fc->bus_specific = bus;
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return fc;
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}
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EXPORT_SYMBOL(flexcop_device_kmalloc);
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void flexcop_device_kfree(struct flexcop_device *fc)
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{
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kfree(fc->bus_specific);
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kfree(fc);
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}
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EXPORT_SYMBOL(flexcop_device_kfree);
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int flexcop_device_initialize(struct flexcop_device *fc)
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{
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int ret;
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ibi_zero.raw = 0;
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flexcop_reset(fc);
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flexcop_determine_revision(fc);
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flexcop_sram_init(fc);
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flexcop_hw_filter_init(fc);
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flexcop_smc_ctrl(fc, 0);
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if ((ret = flexcop_dvb_init(fc)))
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goto error;
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/* i2c has to be done before doing EEProm stuff -
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* because the EEProm is accessed via i2c */
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ret = flexcop_i2c_init(fc);
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if (ret)
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goto error;
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/* do the MAC address reading after initializing the dvb_adapter */
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if (fc->get_mac_addr(fc, 0) == 0) {
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u8 *b = fc->dvb_adapter.proposed_mac;
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info("MAC address = %pM", b);
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flexcop_set_mac_filter(fc,b);
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flexcop_mac_filter_ctrl(fc,1);
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} else
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warn("reading of MAC address failed.\n");
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if ((ret = flexcop_frontend_init(fc)))
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goto error;
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flexcop_device_name(fc,"initialization of","complete");
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return 0;
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error:
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flexcop_device_exit(fc);
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return ret;
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}
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EXPORT_SYMBOL(flexcop_device_initialize);
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void flexcop_device_exit(struct flexcop_device *fc)
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{
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flexcop_frontend_exit(fc);
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flexcop_i2c_exit(fc);
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flexcop_dvb_exit(fc);
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}
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EXPORT_SYMBOL(flexcop_device_exit);
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static int flexcop_module_init(void)
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{
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info(DRIVER_NAME " loaded successfully");
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return 0;
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}
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static void flexcop_module_cleanup(void)
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{
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info(DRIVER_NAME " unloaded successfully");
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}
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module_init(flexcop_module_init);
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module_exit(flexcop_module_cleanup);
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_NAME);
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MODULE_LICENSE("GPL");
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