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 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," 50 "16=sram,32=reg (|-able))." 51 DEBSTATUS); 52 #undef DEBSTATUS 53 54 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 55 56 /* global zero for ibi values */ 57 flexcop_ibi_value ibi_zero; 58 59 static int flexcop_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed) 60 { 61 struct flexcop_device *fc = dvbdmxfeed->demux->priv; 62 return flexcop_pid_feed_control(fc, dvbdmxfeed, 1); 63 } 64 65 static int flexcop_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) 66 { 67 struct flexcop_device *fc = dvbdmxfeed->demux->priv; 68 return flexcop_pid_feed_control(fc, dvbdmxfeed, 0); 69 } 70 71 static int flexcop_dvb_init(struct flexcop_device *fc) 72 { 73 int ret = dvb_register_adapter(&fc->dvb_adapter, 74 "FlexCop Digital TV device", fc->owner, 75 fc->dev, adapter_nr); 76 if (ret < 0) { 77 err("error registering DVB adapter"); 78 return ret; 79 } 80 fc->dvb_adapter.priv = fc; 81 82 fc->demux.dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING 83 | DMX_MEMORY_BASED_FILTERING); 84 fc->demux.priv = fc; 85 fc->demux.filternum = fc->demux.feednum = FC_MAX_FEED; 86 fc->demux.start_feed = flexcop_dvb_start_feed; 87 fc->demux.stop_feed = flexcop_dvb_stop_feed; 88 fc->demux.write_to_decoder = NULL; 89 90 ret = dvb_dmx_init(&fc->demux); 91 if (ret < 0) { 92 err("dvb_dmx failed: error %d", ret); 93 goto err_dmx; 94 } 95 96 fc->hw_frontend.source = DMX_FRONTEND_0; 97 98 fc->dmxdev.filternum = fc->demux.feednum; 99 fc->dmxdev.demux = &fc->demux.dmx; 100 fc->dmxdev.capabilities = 0; 101 ret = dvb_dmxdev_init(&fc->dmxdev, &fc->dvb_adapter); 102 if (ret < 0) { 103 err("dvb_dmxdev_init failed: error %d", ret); 104 goto err_dmx_dev; 105 } 106 107 ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->hw_frontend); 108 if (ret < 0) { 109 err("adding hw_frontend to dmx failed: error %d", ret); 110 goto err_dmx_add_hw_frontend; 111 } 112 113 fc->mem_frontend.source = DMX_MEMORY_FE; 114 ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->mem_frontend); 115 if (ret < 0) { 116 err("adding mem_frontend to dmx failed: error %d", ret); 117 goto err_dmx_add_mem_frontend; 118 } 119 120 ret = fc->demux.dmx.connect_frontend(&fc->demux.dmx, &fc->hw_frontend); 121 if (ret < 0) { 122 err("connect frontend failed: error %d", ret); 123 goto err_connect_frontend; 124 } 125 126 ret = dvb_net_init(&fc->dvb_adapter, &fc->dvbnet, &fc->demux.dmx); 127 if (ret < 0) { 128 err("dvb_net_init failed: error %d", ret); 129 goto err_net; 130 } 131 132 fc->init_state |= FC_STATE_DVB_INIT; 133 return 0; 134 135 err_net: 136 fc->demux.dmx.disconnect_frontend(&fc->demux.dmx); 137 err_connect_frontend: 138 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->mem_frontend); 139 err_dmx_add_mem_frontend: 140 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->hw_frontend); 141 err_dmx_add_hw_frontend: 142 dvb_dmxdev_release(&fc->dmxdev); 143 err_dmx_dev: 144 dvb_dmx_release(&fc->demux); 145 err_dmx: 146 dvb_unregister_adapter(&fc->dvb_adapter); 147 return ret; 148 } 149 150 static void flexcop_dvb_exit(struct flexcop_device *fc) 151 { 152 if (fc->init_state & FC_STATE_DVB_INIT) { 153 dvb_net_release(&fc->dvbnet); 154 155 fc->demux.dmx.close(&fc->demux.dmx); 156 fc->demux.dmx.remove_frontend(&fc->demux.dmx, 157 &fc->mem_frontend); 158 fc->demux.dmx.remove_frontend(&fc->demux.dmx, 159 &fc->hw_frontend); 160 dvb_dmxdev_release(&fc->dmxdev); 161 dvb_dmx_release(&fc->demux); 162 dvb_unregister_adapter(&fc->dvb_adapter); 163 deb_info("deinitialized dvb stuff\n"); 164 } 165 fc->init_state &= ~FC_STATE_DVB_INIT; 166 } 167 168 /* these methods are necessary to achieve the long-term-goal of hiding the 169 * struct flexcop_device from the bus-parts */ 170 void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len) 171 { 172 dvb_dmx_swfilter(&fc->demux, buf, len); 173 } 174 EXPORT_SYMBOL(flexcop_pass_dmx_data); 175 176 void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no) 177 { 178 dvb_dmx_swfilter_packets(&fc->demux, buf, no); 179 } 180 EXPORT_SYMBOL(flexcop_pass_dmx_packets); 181 182 static void flexcop_reset(struct flexcop_device *fc) 183 { 184 flexcop_ibi_value v210, v204; 185 186 /* reset the flexcop itself */ 187 fc->write_ibi_reg(fc,ctrl_208,ibi_zero); 188 189 v210.raw = 0; 190 v210.sw_reset_210.reset_block_000 = 1; 191 v210.sw_reset_210.reset_block_100 = 1; 192 v210.sw_reset_210.reset_block_200 = 1; 193 v210.sw_reset_210.reset_block_300 = 1; 194 v210.sw_reset_210.reset_block_400 = 1; 195 v210.sw_reset_210.reset_block_500 = 1; 196 v210.sw_reset_210.reset_block_600 = 1; 197 v210.sw_reset_210.reset_block_700 = 1; 198 v210.sw_reset_210.Block_reset_enable = 0xb2; 199 v210.sw_reset_210.Special_controls = 0xc259; 200 fc->write_ibi_reg(fc,sw_reset_210,v210); 201 msleep(1); 202 203 /* reset the periphical devices */ 204 205 v204 = fc->read_ibi_reg(fc,misc_204); 206 v204.misc_204.Per_reset_sig = 0; 207 fc->write_ibi_reg(fc,misc_204,v204); 208 msleep(1); 209 v204.misc_204.Per_reset_sig = 1; 210 fc->write_ibi_reg(fc,misc_204,v204); 211 } 212 213 void flexcop_reset_block_300(struct flexcop_device *fc) 214 { 215 flexcop_ibi_value v208_save = fc->read_ibi_reg(fc, ctrl_208), 216 v210 = fc->read_ibi_reg(fc, sw_reset_210); 217 218 deb_rdump("208: %08x, 210: %08x\n", v208_save.raw, v210.raw); 219 fc->write_ibi_reg(fc,ctrl_208,ibi_zero); 220 221 v210.sw_reset_210.reset_block_300 = 1; 222 v210.sw_reset_210.Block_reset_enable = 0xb2; 223 224 fc->write_ibi_reg(fc,sw_reset_210,v210); 225 fc->write_ibi_reg(fc,ctrl_208,v208_save); 226 } 227 228 struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len) 229 { 230 void *bus; 231 struct flexcop_device *fc = kzalloc(sizeof(struct flexcop_device), 232 GFP_KERNEL); 233 if (!fc) { 234 err("no memory"); 235 return NULL; 236 } 237 238 bus = kzalloc(bus_specific_len, GFP_KERNEL); 239 if (!bus) { 240 err("no memory"); 241 kfree(fc); 242 return NULL; 243 } 244 245 fc->bus_specific = bus; 246 247 return fc; 248 } 249 EXPORT_SYMBOL(flexcop_device_kmalloc); 250 251 void flexcop_device_kfree(struct flexcop_device *fc) 252 { 253 kfree(fc->bus_specific); 254 kfree(fc); 255 } 256 EXPORT_SYMBOL(flexcop_device_kfree); 257 258 int flexcop_device_initialize(struct flexcop_device *fc) 259 { 260 int ret; 261 ibi_zero.raw = 0; 262 263 flexcop_reset(fc); 264 flexcop_determine_revision(fc); 265 flexcop_sram_init(fc); 266 flexcop_hw_filter_init(fc); 267 flexcop_smc_ctrl(fc, 0); 268 269 ret = flexcop_dvb_init(fc); 270 if (ret) 271 goto error; 272 273 /* i2c has to be done before doing EEProm stuff - 274 * because the EEProm is accessed via i2c */ 275 ret = flexcop_i2c_init(fc); 276 if (ret) 277 goto error; 278 279 /* do the MAC address reading after initializing the dvb_adapter */ 280 if (fc->get_mac_addr(fc, 0) == 0) { 281 u8 *b = fc->dvb_adapter.proposed_mac; 282 info("MAC address = %pM", b); 283 flexcop_set_mac_filter(fc,b); 284 flexcop_mac_filter_ctrl(fc,1); 285 } else 286 warn("reading of MAC address failed.\n"); 287 288 ret = flexcop_frontend_init(fc); 289 if (ret) 290 goto error; 291 292 flexcop_device_name(fc,"initialization of","complete"); 293 return 0; 294 295 error: 296 flexcop_device_exit(fc); 297 return ret; 298 } 299 EXPORT_SYMBOL(flexcop_device_initialize); 300 301 void flexcop_device_exit(struct flexcop_device *fc) 302 { 303 flexcop_frontend_exit(fc); 304 flexcop_i2c_exit(fc); 305 flexcop_dvb_exit(fc); 306 } 307 EXPORT_SYMBOL(flexcop_device_exit); 308 309 static int flexcop_module_init(void) 310 { 311 info(DRIVER_NAME " loaded successfully"); 312 return 0; 313 } 314 315 static void flexcop_module_cleanup(void) 316 { 317 info(DRIVER_NAME " unloaded successfully"); 318 } 319 320 module_init(flexcop_module_init); 321 module_exit(flexcop_module_cleanup); 322 323 MODULE_AUTHOR(DRIVER_AUTHOR); 324 MODULE_DESCRIPTION(DRIVER_NAME); 325 MODULE_LICENSE("GPL"); 326