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@posteo.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@posteo.de" 38 39 #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG 40 #define DEBSTATUS "" 41 #else 42 #define DEBSTATUS " (debugging is not enabled)" 43 #endif 44 45 int b2c2_flexcop_debug; 46 EXPORT_SYMBOL_GPL(b2c2_flexcop_debug); 47 module_param_named(debug, b2c2_flexcop_debug, int, 0644); 48 MODULE_PARM_DESC(debug, 49 "set debug level (1=info,2=tuner,4=i2c,8=ts,16=sram,32=reg (|-able))." 50 DEBSTATUS); 51 #undef DEBSTATUS 52 53 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 54 55 /* global zero for ibi values */ 56 flexcop_ibi_value ibi_zero; 57 58 static 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 64 static 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 70 static 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 ret = dvb_dmx_init(&fc->demux); 90 if (ret < 0) { 91 err("dvb_dmx failed: error %d", ret); 92 goto err_dmx; 93 } 94 95 fc->hw_frontend.source = DMX_FRONTEND_0; 96 97 fc->dmxdev.filternum = fc->demux.feednum; 98 fc->dmxdev.demux = &fc->demux.dmx; 99 fc->dmxdev.capabilities = 0; 100 ret = dvb_dmxdev_init(&fc->dmxdev, &fc->dvb_adapter); 101 if (ret < 0) { 102 err("dvb_dmxdev_init failed: error %d", ret); 103 goto err_dmx_dev; 104 } 105 106 ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->hw_frontend); 107 if (ret < 0) { 108 err("adding hw_frontend to dmx failed: error %d", ret); 109 goto err_dmx_add_hw_frontend; 110 } 111 112 fc->mem_frontend.source = DMX_MEMORY_FE; 113 ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->mem_frontend); 114 if (ret < 0) { 115 err("adding mem_frontend to dmx failed: error %d", ret); 116 goto err_dmx_add_mem_frontend; 117 } 118 119 ret = fc->demux.dmx.connect_frontend(&fc->demux.dmx, &fc->hw_frontend); 120 if (ret < 0) { 121 err("connect frontend failed: error %d", ret); 122 goto err_connect_frontend; 123 } 124 125 ret = dvb_net_init(&fc->dvb_adapter, &fc->dvbnet, &fc->demux.dmx); 126 if (ret < 0) { 127 err("dvb_net_init failed: error %d", ret); 128 goto err_net; 129 } 130 131 fc->init_state |= FC_STATE_DVB_INIT; 132 return 0; 133 134 err_net: 135 fc->demux.dmx.disconnect_frontend(&fc->demux.dmx); 136 err_connect_frontend: 137 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->mem_frontend); 138 err_dmx_add_mem_frontend: 139 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->hw_frontend); 140 err_dmx_add_hw_frontend: 141 dvb_dmxdev_release(&fc->dmxdev); 142 err_dmx_dev: 143 dvb_dmx_release(&fc->demux); 144 err_dmx: 145 dvb_unregister_adapter(&fc->dvb_adapter); 146 return ret; 147 } 148 149 static void flexcop_dvb_exit(struct flexcop_device *fc) 150 { 151 if (fc->init_state & FC_STATE_DVB_INIT) { 152 dvb_net_release(&fc->dvbnet); 153 154 fc->demux.dmx.close(&fc->demux.dmx); 155 fc->demux.dmx.remove_frontend(&fc->demux.dmx, 156 &fc->mem_frontend); 157 fc->demux.dmx.remove_frontend(&fc->demux.dmx, 158 &fc->hw_frontend); 159 dvb_dmxdev_release(&fc->dmxdev); 160 dvb_dmx_release(&fc->demux); 161 dvb_unregister_adapter(&fc->dvb_adapter); 162 deb_info("deinitialized dvb stuff\n"); 163 } 164 fc->init_state &= ~FC_STATE_DVB_INIT; 165 } 166 167 /* these methods are necessary to achieve the long-term-goal of hiding the 168 * struct flexcop_device from the bus-parts */ 169 void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len) 170 { 171 dvb_dmx_swfilter(&fc->demux, buf, len); 172 } 173 EXPORT_SYMBOL(flexcop_pass_dmx_data); 174 175 void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no) 176 { 177 dvb_dmx_swfilter_packets(&fc->demux, buf, no); 178 } 179 EXPORT_SYMBOL(flexcop_pass_dmx_packets); 180 181 static void flexcop_reset(struct flexcop_device *fc) 182 { 183 flexcop_ibi_value v210, v204; 184 185 /* reset the flexcop itself */ 186 fc->write_ibi_reg(fc,ctrl_208,ibi_zero); 187 188 v210.raw = 0; 189 v210.sw_reset_210.reset_block_000 = 1; 190 v210.sw_reset_210.reset_block_100 = 1; 191 v210.sw_reset_210.reset_block_200 = 1; 192 v210.sw_reset_210.reset_block_300 = 1; 193 v210.sw_reset_210.reset_block_400 = 1; 194 v210.sw_reset_210.reset_block_500 = 1; 195 v210.sw_reset_210.reset_block_600 = 1; 196 v210.sw_reset_210.reset_block_700 = 1; 197 v210.sw_reset_210.Block_reset_enable = 0xb2; 198 v210.sw_reset_210.Special_controls = 0xc259; 199 fc->write_ibi_reg(fc,sw_reset_210,v210); 200 msleep(1); 201 202 /* reset the periphical devices */ 203 204 v204 = fc->read_ibi_reg(fc,misc_204); 205 v204.misc_204.Per_reset_sig = 0; 206 fc->write_ibi_reg(fc,misc_204,v204); 207 msleep(1); 208 v204.misc_204.Per_reset_sig = 1; 209 fc->write_ibi_reg(fc,misc_204,v204); 210 } 211 212 void flexcop_reset_block_300(struct flexcop_device *fc) 213 { 214 flexcop_ibi_value v208_save = fc->read_ibi_reg(fc, ctrl_208), 215 v210 = fc->read_ibi_reg(fc, sw_reset_210); 216 217 deb_rdump("208: %08x, 210: %08x\n", v208_save.raw, v210.raw); 218 fc->write_ibi_reg(fc,ctrl_208,ibi_zero); 219 220 v210.sw_reset_210.reset_block_300 = 1; 221 v210.sw_reset_210.Block_reset_enable = 0xb2; 222 223 fc->write_ibi_reg(fc,sw_reset_210,v210); 224 fc->write_ibi_reg(fc,ctrl_208,v208_save); 225 } 226 227 struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len) 228 { 229 void *bus; 230 struct flexcop_device *fc = kzalloc(sizeof(struct flexcop_device), 231 GFP_KERNEL); 232 if (!fc) { 233 err("no memory"); 234 return NULL; 235 } 236 237 bus = kzalloc(bus_specific_len, GFP_KERNEL); 238 if (!bus) { 239 err("no memory"); 240 kfree(fc); 241 return NULL; 242 } 243 244 fc->bus_specific = bus; 245 246 return fc; 247 } 248 EXPORT_SYMBOL(flexcop_device_kmalloc); 249 250 void flexcop_device_kfree(struct flexcop_device *fc) 251 { 252 kfree(fc->bus_specific); 253 kfree(fc); 254 } 255 EXPORT_SYMBOL(flexcop_device_kfree); 256 257 int flexcop_device_initialize(struct flexcop_device *fc) 258 { 259 int ret; 260 ibi_zero.raw = 0; 261 262 flexcop_reset(fc); 263 flexcop_determine_revision(fc); 264 flexcop_sram_init(fc); 265 flexcop_hw_filter_init(fc); 266 flexcop_smc_ctrl(fc, 0); 267 268 ret = flexcop_dvb_init(fc); 269 if (ret) 270 goto error; 271 272 /* i2c has to be done before doing EEProm stuff - 273 * because the EEProm is accessed via i2c */ 274 ret = flexcop_i2c_init(fc); 275 if (ret) 276 goto error; 277 278 /* do the MAC address reading after initializing the dvb_adapter */ 279 if (fc->get_mac_addr(fc, 0) == 0) { 280 u8 *b = fc->dvb_adapter.proposed_mac; 281 info("MAC address = %pM", b); 282 flexcop_set_mac_filter(fc,b); 283 flexcop_mac_filter_ctrl(fc,1); 284 } else 285 warn("reading of MAC address failed.\n"); 286 287 ret = flexcop_frontend_init(fc); 288 if (ret) 289 goto error; 290 291 flexcop_device_name(fc,"initialization of","complete"); 292 return 0; 293 294 error: 295 flexcop_device_exit(fc); 296 return ret; 297 } 298 EXPORT_SYMBOL(flexcop_device_initialize); 299 300 void flexcop_device_exit(struct flexcop_device *fc) 301 { 302 flexcop_frontend_exit(fc); 303 flexcop_i2c_exit(fc); 304 flexcop_dvb_exit(fc); 305 } 306 EXPORT_SYMBOL(flexcop_device_exit); 307 308 static int flexcop_module_init(void) 309 { 310 info(DRIVER_NAME " loaded successfully"); 311 return 0; 312 } 313 314 static void flexcop_module_cleanup(void) 315 { 316 info(DRIVER_NAME " unloaded successfully"); 317 } 318 319 module_init(flexcop_module_init); 320 module_exit(flexcop_module_cleanup); 321 322 MODULE_AUTHOR(DRIVER_AUTHOR); 323 MODULE_DESCRIPTION(DRIVER_NAME); 324 MODULE_LICENSE("GPL"); 325