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1// SPDX-License-Identifier: LGPL-2.1-or-later2/*3 * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III4 * flexcop.c - main module part5 * Copyright (C) 2004-9 Patrick Boettcher <patrick.boettcher@posteo.de>6 * based on skystar2-driver Copyright (C) 2003 Vadim Catana, skystar@moldova.cc7 *8 * Acknowledgements:9 * John Jurrius from BBTI, Inc. for extensive support10 * with code examples and data books11 * Bjarne Steinsbo, bjarne at steinsbo.com (some ideas for rewriting)12 *13 * Contributions to the skystar2-driver have been done by14 * Vincenzo Di Massa, hawk.it at tiscalinet.it (several DiSEqC fixes)15 * Roberto Ragusa, r.ragusa at libero.it (polishing, restyling the code)16 * Uwe Bugla, uwe.bugla at gmx.de (doing tests, restyling code, writing docu)17 * Niklas Peinecke, peinecke at gdv.uni-hannover.de (hardware pid/mac18 * filtering)19 */20 21#include "flexcop.h"22 23#define DRIVER_NAME "B2C2 FlexcopII/II(b)/III digital TV receiver chip"24#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@posteo.de"25 26#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG27#define DEBSTATUS ""28#else29#define DEBSTATUS " (debugging is not enabled)"30#endif31 32int b2c2_flexcop_debug;33EXPORT_SYMBOL_GPL(b2c2_flexcop_debug);34module_param_named(debug, b2c2_flexcop_debug, int, 0644);35MODULE_PARM_DESC(debug,36 "set debug level (1=info,2=tuner,4=i2c,8=ts,16=sram,32=reg,64=i2cdump (|-able))."37 DEBSTATUS);38#undef DEBSTATUS39 40DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);41 42/* global zero for ibi values */43flexcop_ibi_value ibi_zero;44 45static int flexcop_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)46{47 struct flexcop_device *fc = dvbdmxfeed->demux->priv;48 return flexcop_pid_feed_control(fc, dvbdmxfeed, 1);49}50 51static int flexcop_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)52{53 struct flexcop_device *fc = dvbdmxfeed->demux->priv;54 return flexcop_pid_feed_control(fc, dvbdmxfeed, 0);55}56 57static int flexcop_dvb_init(struct flexcop_device *fc)58{59 int ret = dvb_register_adapter(&fc->dvb_adapter,60 "FlexCop Digital TV device", fc->owner,61 fc->dev, adapter_nr);62 if (ret < 0) {63 err("error registering DVB adapter");64 return ret;65 }66 fc->dvb_adapter.priv = fc;67 68 fc->demux.dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING69 | DMX_MEMORY_BASED_FILTERING);70 fc->demux.priv = fc;71 fc->demux.filternum = fc->demux.feednum = FC_MAX_FEED;72 fc->demux.start_feed = flexcop_dvb_start_feed;73 fc->demux.stop_feed = flexcop_dvb_stop_feed;74 fc->demux.write_to_decoder = NULL;75 76 ret = dvb_dmx_init(&fc->demux);77 if (ret < 0) {78 err("dvb_dmx failed: error %d", ret);79 goto err_dmx;80 }81 82 fc->hw_frontend.source = DMX_FRONTEND_0;83 84 fc->dmxdev.filternum = fc->demux.feednum;85 fc->dmxdev.demux = &fc->demux.dmx;86 fc->dmxdev.capabilities = 0;87 ret = dvb_dmxdev_init(&fc->dmxdev, &fc->dvb_adapter);88 if (ret < 0) {89 err("dvb_dmxdev_init failed: error %d", ret);90 goto err_dmx_dev;91 }92 93 ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->hw_frontend);94 if (ret < 0) {95 err("adding hw_frontend to dmx failed: error %d", ret);96 goto err_dmx_add_hw_frontend;97 }98 99 fc->mem_frontend.source = DMX_MEMORY_FE;100 ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->mem_frontend);101 if (ret < 0) {102 err("adding mem_frontend to dmx failed: error %d", ret);103 goto err_dmx_add_mem_frontend;104 }105 106 ret = fc->demux.dmx.connect_frontend(&fc->demux.dmx, &fc->hw_frontend);107 if (ret < 0) {108 err("connect frontend failed: error %d", ret);109 goto err_connect_frontend;110 }111 112 ret = dvb_net_init(&fc->dvb_adapter, &fc->dvbnet, &fc->demux.dmx);113 if (ret < 0) {114 err("dvb_net_init failed: error %d", ret);115 goto err_net;116 }117 118 fc->init_state |= FC_STATE_DVB_INIT;119 return 0;120 121err_net:122 fc->demux.dmx.disconnect_frontend(&fc->demux.dmx);123err_connect_frontend:124 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->mem_frontend);125err_dmx_add_mem_frontend:126 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->hw_frontend);127err_dmx_add_hw_frontend:128 dvb_dmxdev_release(&fc->dmxdev);129err_dmx_dev:130 dvb_dmx_release(&fc->demux);131err_dmx:132 dvb_unregister_adapter(&fc->dvb_adapter);133 return ret;134}135 136static void flexcop_dvb_exit(struct flexcop_device *fc)137{138 if (fc->init_state & FC_STATE_DVB_INIT) {139 dvb_net_release(&fc->dvbnet);140 141 fc->demux.dmx.close(&fc->demux.dmx);142 fc->demux.dmx.remove_frontend(&fc->demux.dmx,143 &fc->mem_frontend);144 fc->demux.dmx.remove_frontend(&fc->demux.dmx,145 &fc->hw_frontend);146 dvb_dmxdev_release(&fc->dmxdev);147 dvb_dmx_release(&fc->demux);148 dvb_unregister_adapter(&fc->dvb_adapter);149 deb_info("deinitialized dvb stuff\n");150 }151 fc->init_state &= ~FC_STATE_DVB_INIT;152}153 154/* these methods are necessary to achieve the long-term-goal of hiding the155 * struct flexcop_device from the bus-parts */156void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len)157{158 dvb_dmx_swfilter(&fc->demux, buf, len);159}160EXPORT_SYMBOL(flexcop_pass_dmx_data);161 162void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no)163{164 dvb_dmx_swfilter_packets(&fc->demux, buf, no);165}166EXPORT_SYMBOL(flexcop_pass_dmx_packets);167 168static void flexcop_reset(struct flexcop_device *fc)169{170 flexcop_ibi_value v210, v204;171 172 /* reset the flexcop itself */173 fc->write_ibi_reg(fc,ctrl_208,ibi_zero);174 175 v210.raw = 0;176 v210.sw_reset_210.reset_block_000 = 1;177 v210.sw_reset_210.reset_block_100 = 1;178 v210.sw_reset_210.reset_block_200 = 1;179 v210.sw_reset_210.reset_block_300 = 1;180 v210.sw_reset_210.reset_block_400 = 1;181 v210.sw_reset_210.reset_block_500 = 1;182 v210.sw_reset_210.reset_block_600 = 1;183 v210.sw_reset_210.reset_block_700 = 1;184 v210.sw_reset_210.Block_reset_enable = 0xb2;185 v210.sw_reset_210.Special_controls = 0xc259;186 fc->write_ibi_reg(fc,sw_reset_210,v210);187 msleep(1);188 189 /* reset the periphical devices */190 191 v204 = fc->read_ibi_reg(fc,misc_204);192 v204.misc_204.Per_reset_sig = 0;193 fc->write_ibi_reg(fc,misc_204,v204);194 msleep(1);195 v204.misc_204.Per_reset_sig = 1;196 fc->write_ibi_reg(fc,misc_204,v204);197}198 199void flexcop_reset_block_300(struct flexcop_device *fc)200{201 flexcop_ibi_value v208_save = fc->read_ibi_reg(fc, ctrl_208),202 v210 = fc->read_ibi_reg(fc, sw_reset_210);203 204 deb_rdump("208: %08x, 210: %08x\n", v208_save.raw, v210.raw);205 fc->write_ibi_reg(fc,ctrl_208,ibi_zero);206 207 v210.sw_reset_210.reset_block_300 = 1;208 v210.sw_reset_210.Block_reset_enable = 0xb2;209 210 fc->write_ibi_reg(fc,sw_reset_210,v210);211 fc->write_ibi_reg(fc,ctrl_208,v208_save);212}213 214struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len)215{216 void *bus;217 struct flexcop_device *fc = kzalloc(sizeof(struct flexcop_device),218 GFP_KERNEL);219 if (!fc) {220 err("no memory");221 return NULL;222 }223 224 bus = kzalloc(bus_specific_len, GFP_KERNEL);225 if (!bus) {226 err("no memory");227 kfree(fc);228 return NULL;229 }230 231 fc->bus_specific = bus;232 233 return fc;234}235EXPORT_SYMBOL(flexcop_device_kmalloc);236 237void flexcop_device_kfree(struct flexcop_device *fc)238{239 kfree(fc->bus_specific);240 kfree(fc);241}242EXPORT_SYMBOL(flexcop_device_kfree);243 244int flexcop_device_initialize(struct flexcop_device *fc)245{246 int ret;247 ibi_zero.raw = 0;248 249 flexcop_reset(fc);250 flexcop_determine_revision(fc);251 flexcop_sram_init(fc);252 flexcop_hw_filter_init(fc);253 flexcop_smc_ctrl(fc, 0);254 255 ret = flexcop_dvb_init(fc);256 if (ret)257 goto error;258 259 /* i2c has to be done before doing EEProm stuff -260 * because the EEProm is accessed via i2c */261 ret = flexcop_i2c_init(fc);262 if (ret)263 goto error;264 265 /* do the MAC address reading after initializing the dvb_adapter */266 if (fc->get_mac_addr(fc, 0) == 0) {267 u8 *b = fc->dvb_adapter.proposed_mac;268 info("MAC address = %pM", b);269 flexcop_set_mac_filter(fc,b);270 flexcop_mac_filter_ctrl(fc,1);271 } else272 warn("reading of MAC address failed.\n");273 274 ret = flexcop_frontend_init(fc);275 if (ret)276 goto error;277 278 flexcop_device_name(fc,"initialization of","complete");279 return 0;280 281error:282 flexcop_device_exit(fc);283 return ret;284}285EXPORT_SYMBOL(flexcop_device_initialize);286 287void flexcop_device_exit(struct flexcop_device *fc)288{289 flexcop_frontend_exit(fc);290 flexcop_i2c_exit(fc);291 flexcop_dvb_exit(fc);292}293EXPORT_SYMBOL(flexcop_device_exit);294 295static int flexcop_module_init(void)296{297 info(DRIVER_NAME " loaded successfully");298 return 0;299}300 301static void flexcop_module_cleanup(void)302{303 info(DRIVER_NAME " unloaded successfully");304}305 306module_init(flexcop_module_init);307module_exit(flexcop_module_cleanup);308 309MODULE_AUTHOR(DRIVER_AUTHOR);310MODULE_DESCRIPTION(DRIVER_NAME);311MODULE_LICENSE("GPL");312