1/* 2 * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III 3 * flexcop.c - main module part 4 * Copyright (C) 2004-9 Patrick Boettcher <patrick.boettcher@desy.de> 5 * based on skystar2-driver Copyright (C) 2003 Vadim Catana, skystar@moldova.cc 6 * 7 * Acknowledgements: 8 * John Jurrius from BBTI, Inc. for extensive support 9 * with code examples and data books 10 * Bjarne Steinsbo, bjarne at steinsbo.com (some ideas for rewriting) 11 * 12 * Contributions to the skystar2-driver have been done by 13 * Vincenzo Di Massa, hawk.it at tiscalinet.it (several DiSEqC fixes) 14 * Roberto Ragusa, r.ragusa at libero.it (polishing, restyling the code) 15 * Uwe Bugla, uwe.bugla at gmx.de (doing tests, restyling code, writing docu) 16 * Niklas Peinecke, peinecke at gdv.uni-hannover.de (hardware pid/mac 17 * filtering) 18 * 19 * This program is free software; you can redistribute it and/or 20 * modify it under the terms of the GNU Lesser General Public License 21 * as published by the Free Software Foundation; either version 2.1 22 * of the License, or (at your option) any later version. 23 * 24 * This program is distributed in the hope that it will be useful, 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27 * GNU General Public License for more details. 28 * 29 * You should have received a copy of the GNU Lesser General Public License 30 * along with this program; if not, write to the Free Software 31 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 32 */ 33 34#include "flexcop.h" 35 36#define DRIVER_NAME "B2C2 FlexcopII/II(b)/III digital TV receiver chip" 37#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@desy.de" 38 39#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG 40#define DEBSTATUS "" 41#else 42#define DEBSTATUS " (debugging is not enabled)" 43#endif 44 45int b2c2_flexcop_debug; 46module_param_named(debug, b2c2_flexcop_debug, int, 0644); 47MODULE_PARM_DESC(debug, 48 "set debug level (1=info,2=tuner,4=i2c,8=ts," 49 "16=sram,32=reg (|-able))." 50 DEBSTATUS); 51#undef DEBSTATUS 52 53DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 54 55/* global zero for ibi values */ 56flexcop_ibi_value ibi_zero; 57 58static int flexcop_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed) 59{ 60 struct flexcop_device *fc = dvbdmxfeed->demux->priv; 61 return flexcop_pid_feed_control(fc, dvbdmxfeed, 1); 62} 63 64static int flexcop_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) 65{ 66 struct flexcop_device *fc = dvbdmxfeed->demux->priv; 67 return flexcop_pid_feed_control(fc, dvbdmxfeed, 0); 68} 69 70static int flexcop_dvb_init(struct flexcop_device *fc) 71{ 72 int ret = dvb_register_adapter(&fc->dvb_adapter, 73 "FlexCop Digital TV device", fc->owner, 74 fc->dev, adapter_nr); 75 if (ret < 0) { 76 err("error registering DVB adapter"); 77 return ret; 78 } 79 fc->dvb_adapter.priv = fc; 80 81 fc->demux.dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING 82 | DMX_MEMORY_BASED_FILTERING); 83 fc->demux.priv = fc; 84 fc->demux.filternum = fc->demux.feednum = FC_MAX_FEED; 85 fc->demux.start_feed = flexcop_dvb_start_feed; 86 fc->demux.stop_feed = flexcop_dvb_stop_feed; 87 fc->demux.write_to_decoder = NULL; 88 89 if ((ret = dvb_dmx_init(&fc->demux)) < 0) { 90 err("dvb_dmx failed: error %d", ret); 91 goto err_dmx; 92 } 93 94 fc->hw_frontend.source = DMX_FRONTEND_0; 95 96 fc->dmxdev.filternum = fc->demux.feednum; 97 fc->dmxdev.demux = &fc->demux.dmx; 98 fc->dmxdev.capabilities = 0; 99 if ((ret = dvb_dmxdev_init(&fc->dmxdev, &fc->dvb_adapter)) < 0) { 100 err("dvb_dmxdev_init failed: error %d", ret); 101 goto err_dmx_dev; 102 } 103 104 if ((ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->hw_frontend)) < 0) { 105 err("adding hw_frontend to dmx failed: error %d", ret); 106 goto err_dmx_add_hw_frontend; 107 } 108 109 fc->mem_frontend.source = DMX_MEMORY_FE; 110 if ((ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->mem_frontend)) < 0) { 111 err("adding mem_frontend to dmx failed: error %d", ret); 112 goto err_dmx_add_mem_frontend; 113 } 114 115 if ((ret = fc->demux.dmx.connect_frontend(&fc->demux.dmx, &fc->hw_frontend)) < 0) { 116 err("connect frontend failed: error %d", ret); 117 goto err_connect_frontend; 118 } 119 120 dvb_net_init(&fc->dvb_adapter, &fc->dvbnet, &fc->demux.dmx); 121 122 fc->init_state |= FC_STATE_DVB_INIT; 123 return 0; 124 125err_connect_frontend: 126 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->mem_frontend); 127err_dmx_add_mem_frontend: 128 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->hw_frontend); 129err_dmx_add_hw_frontend: 130 dvb_dmxdev_release(&fc->dmxdev); 131err_dmx_dev: 132 dvb_dmx_release(&fc->demux); 133err_dmx: 134 dvb_unregister_adapter(&fc->dvb_adapter); 135 return ret; 136} 137 138static void flexcop_dvb_exit(struct flexcop_device *fc) 139{ 140 if (fc->init_state & FC_STATE_DVB_INIT) { 141 dvb_net_release(&fc->dvbnet); 142 143 fc->demux.dmx.close(&fc->demux.dmx); 144 fc->demux.dmx.remove_frontend(&fc->demux.dmx, 145 &fc->mem_frontend); 146 fc->demux.dmx.remove_frontend(&fc->demux.dmx, 147 &fc->hw_frontend); 148 dvb_dmxdev_release(&fc->dmxdev); 149 dvb_dmx_release(&fc->demux); 150 dvb_unregister_adapter(&fc->dvb_adapter); 151 deb_info("deinitialized dvb stuff\n"); 152 } 153 fc->init_state &= ~FC_STATE_DVB_INIT; 154} 155 156/* these methods are necessary to achieve the long-term-goal of hiding the 157 * struct flexcop_device from the bus-parts */ 158void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len) 159{ 160 dvb_dmx_swfilter(&fc->demux, buf, len); 161} 162EXPORT_SYMBOL(flexcop_pass_dmx_data); 163 164void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no) 165{ 166 dvb_dmx_swfilter_packets(&fc->demux, buf, no); 167} 168EXPORT_SYMBOL(flexcop_pass_dmx_packets); 169 170static void flexcop_reset(struct flexcop_device *fc) 171{ 172 flexcop_ibi_value v210, v204; 173 174 /* reset the flexcop itself */ 175 fc->write_ibi_reg(fc,ctrl_208,ibi_zero); 176 177 v210.raw = 0; 178 v210.sw_reset_210.reset_block_000 = 1; 179 v210.sw_reset_210.reset_block_100 = 1; 180 v210.sw_reset_210.reset_block_200 = 1; 181 v210.sw_reset_210.reset_block_300 = 1; 182 v210.sw_reset_210.reset_block_400 = 1; 183 v210.sw_reset_210.reset_block_500 = 1; 184 v210.sw_reset_210.reset_block_600 = 1; 185 v210.sw_reset_210.reset_block_700 = 1; 186 v210.sw_reset_210.Block_reset_enable = 0xb2; 187 v210.sw_reset_210.Special_controls = 0xc259; 188 fc->write_ibi_reg(fc,sw_reset_210,v210); 189 msleep(1); 190 191 /* reset the periphical devices */ 192 193 v204 = fc->read_ibi_reg(fc,misc_204); 194 v204.misc_204.Per_reset_sig = 0; 195 fc->write_ibi_reg(fc,misc_204,v204); 196 msleep(1); 197 v204.misc_204.Per_reset_sig = 1; 198 fc->write_ibi_reg(fc,misc_204,v204); 199} 200 201void flexcop_reset_block_300(struct flexcop_device *fc) 202{ 203 flexcop_ibi_value v208_save = fc->read_ibi_reg(fc, ctrl_208), 204 v210 = fc->read_ibi_reg(fc, sw_reset_210); 205 206 deb_rdump("208: %08x, 210: %08x\n", v208_save.raw, v210.raw); 207 fc->write_ibi_reg(fc,ctrl_208,ibi_zero); 208 209 v210.sw_reset_210.reset_block_300 = 1; 210 v210.sw_reset_210.Block_reset_enable = 0xb2; 211 212 fc->write_ibi_reg(fc,sw_reset_210,v210); 213 fc->write_ibi_reg(fc,ctrl_208,v208_save); 214} 215 216struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len) 217{ 218 void *bus; 219 struct flexcop_device *fc = kzalloc(sizeof(struct flexcop_device), 220 GFP_KERNEL); 221 if (!fc) { 222 err("no memory"); 223 return NULL; 224 } 225 226 bus = kzalloc(bus_specific_len, GFP_KERNEL); 227 if (!bus) { 228 err("no memory"); 229 kfree(fc); 230 return NULL; 231 } 232 233 fc->bus_specific = bus; 234 235 return fc; 236} 237EXPORT_SYMBOL(flexcop_device_kmalloc); 238 239void flexcop_device_kfree(struct flexcop_device *fc) 240{ 241 kfree(fc->bus_specific); 242 kfree(fc); 243} 244EXPORT_SYMBOL(flexcop_device_kfree); 245 246int flexcop_device_initialize(struct flexcop_device *fc) 247{ 248 int ret; 249 ibi_zero.raw = 0; 250 251 flexcop_reset(fc); 252 flexcop_determine_revision(fc); 253 flexcop_sram_init(fc); 254 flexcop_hw_filter_init(fc); 255 flexcop_smc_ctrl(fc, 0); 256 257 if ((ret = flexcop_dvb_init(fc))) 258 goto error; 259 260 /* i2c has to be done before doing EEProm stuff - 261 * because the EEProm is accessed via i2c */ 262 ret = flexcop_i2c_init(fc); 263 if (ret) 264 goto error; 265 266 /* do the MAC address reading after initializing the dvb_adapter */ 267 if (fc->get_mac_addr(fc, 0) == 0) { 268 u8 *b = fc->dvb_adapter.proposed_mac; 269 info("MAC address = %pM", b); 270 flexcop_set_mac_filter(fc,b); 271 flexcop_mac_filter_ctrl(fc,1); 272 } else 273 warn("reading of MAC address failed.\n"); 274 275 if ((ret = flexcop_frontend_init(fc))) 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