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 30 #include "flexcop.h" 31 32 #define DRIVER_NAME "B2C2 FlexcopII/II(b)/III digital TV receiver chip" 33 #define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@posteo.de" 34 35 #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG 36 #define DEBSTATUS "" 37 #else 38 #define DEBSTATUS " (debugging is not enabled)" 39 #endif 40 41 int b2c2_flexcop_debug; 42 EXPORT_SYMBOL_GPL(b2c2_flexcop_debug); 43 module_param_named(debug, b2c2_flexcop_debug, int, 0644); 44 MODULE_PARM_DESC(debug, 45 "set debug level (1=info,2=tuner,4=i2c,8=ts,16=sram,32=reg,64=i2cdump (|-able))." 46 DEBSTATUS); 47 #undef DEBSTATUS 48 49 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 50 51 /* global zero for ibi values */ 52 flexcop_ibi_value ibi_zero; 53 54 static int flexcop_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed) 55 { 56 struct flexcop_device *fc = dvbdmxfeed->demux->priv; 57 return flexcop_pid_feed_control(fc, dvbdmxfeed, 1); 58 } 59 60 static int flexcop_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) 61 { 62 struct flexcop_device *fc = dvbdmxfeed->demux->priv; 63 return flexcop_pid_feed_control(fc, dvbdmxfeed, 0); 64 } 65 66 static int flexcop_dvb_init(struct flexcop_device *fc) 67 { 68 int ret = dvb_register_adapter(&fc->dvb_adapter, 69 "FlexCop Digital TV device", fc->owner, 70 fc->dev, adapter_nr); 71 if (ret < 0) { 72 err("error registering DVB adapter"); 73 return ret; 74 } 75 fc->dvb_adapter.priv = fc; 76 77 fc->demux.dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING 78 | DMX_MEMORY_BASED_FILTERING); 79 fc->demux.priv = fc; 80 fc->demux.filternum = fc->demux.feednum = FC_MAX_FEED; 81 fc->demux.start_feed = flexcop_dvb_start_feed; 82 fc->demux.stop_feed = flexcop_dvb_stop_feed; 83 fc->demux.write_to_decoder = NULL; 84 85 ret = dvb_dmx_init(&fc->demux); 86 if (ret < 0) { 87 err("dvb_dmx failed: error %d", ret); 88 goto err_dmx; 89 } 90 91 fc->hw_frontend.source = DMX_FRONTEND_0; 92 93 fc->dmxdev.filternum = fc->demux.feednum; 94 fc->dmxdev.demux = &fc->demux.dmx; 95 fc->dmxdev.capabilities = 0; 96 ret = dvb_dmxdev_init(&fc->dmxdev, &fc->dvb_adapter); 97 if (ret < 0) { 98 err("dvb_dmxdev_init failed: error %d", ret); 99 goto err_dmx_dev; 100 } 101 102 ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->hw_frontend); 103 if (ret < 0) { 104 err("adding hw_frontend to dmx failed: error %d", ret); 105 goto err_dmx_add_hw_frontend; 106 } 107 108 fc->mem_frontend.source = DMX_MEMORY_FE; 109 ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->mem_frontend); 110 if (ret < 0) { 111 err("adding mem_frontend to dmx failed: error %d", ret); 112 goto err_dmx_add_mem_frontend; 113 } 114 115 ret = fc->demux.dmx.connect_frontend(&fc->demux.dmx, &fc->hw_frontend); 116 if (ret < 0) { 117 err("connect frontend failed: error %d", ret); 118 goto err_connect_frontend; 119 } 120 121 ret = dvb_net_init(&fc->dvb_adapter, &fc->dvbnet, &fc->demux.dmx); 122 if (ret < 0) { 123 err("dvb_net_init failed: error %d", ret); 124 goto err_net; 125 } 126 127 fc->init_state |= FC_STATE_DVB_INIT; 128 return 0; 129 130 err_net: 131 fc->demux.dmx.disconnect_frontend(&fc->demux.dmx); 132 err_connect_frontend: 133 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->mem_frontend); 134 err_dmx_add_mem_frontend: 135 fc->demux.dmx.remove_frontend(&fc->demux.dmx, &fc->hw_frontend); 136 err_dmx_add_hw_frontend: 137 dvb_dmxdev_release(&fc->dmxdev); 138 err_dmx_dev: 139 dvb_dmx_release(&fc->demux); 140 err_dmx: 141 dvb_unregister_adapter(&fc->dvb_adapter); 142 return ret; 143 } 144 145 static void flexcop_dvb_exit(struct flexcop_device *fc) 146 { 147 if (fc->init_state & FC_STATE_DVB_INIT) { 148 dvb_net_release(&fc->dvbnet); 149 150 fc->demux.dmx.close(&fc->demux.dmx); 151 fc->demux.dmx.remove_frontend(&fc->demux.dmx, 152 &fc->mem_frontend); 153 fc->demux.dmx.remove_frontend(&fc->demux.dmx, 154 &fc->hw_frontend); 155 dvb_dmxdev_release(&fc->dmxdev); 156 dvb_dmx_release(&fc->demux); 157 dvb_unregister_adapter(&fc->dvb_adapter); 158 deb_info("deinitialized dvb stuff\n"); 159 } 160 fc->init_state &= ~FC_STATE_DVB_INIT; 161 } 162 163 /* these methods are necessary to achieve the long-term-goal of hiding the 164 * struct flexcop_device from the bus-parts */ 165 void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len) 166 { 167 dvb_dmx_swfilter(&fc->demux, buf, len); 168 } 169 EXPORT_SYMBOL(flexcop_pass_dmx_data); 170 171 void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no) 172 { 173 dvb_dmx_swfilter_packets(&fc->demux, buf, no); 174 } 175 EXPORT_SYMBOL(flexcop_pass_dmx_packets); 176 177 static void flexcop_reset(struct flexcop_device *fc) 178 { 179 flexcop_ibi_value v210, v204; 180 181 /* reset the flexcop itself */ 182 fc->write_ibi_reg(fc,ctrl_208,ibi_zero); 183 184 v210.raw = 0; 185 v210.sw_reset_210.reset_block_000 = 1; 186 v210.sw_reset_210.reset_block_100 = 1; 187 v210.sw_reset_210.reset_block_200 = 1; 188 v210.sw_reset_210.reset_block_300 = 1; 189 v210.sw_reset_210.reset_block_400 = 1; 190 v210.sw_reset_210.reset_block_500 = 1; 191 v210.sw_reset_210.reset_block_600 = 1; 192 v210.sw_reset_210.reset_block_700 = 1; 193 v210.sw_reset_210.Block_reset_enable = 0xb2; 194 v210.sw_reset_210.Special_controls = 0xc259; 195 fc->write_ibi_reg(fc,sw_reset_210,v210); 196 msleep(1); 197 198 /* reset the periphical devices */ 199 200 v204 = fc->read_ibi_reg(fc,misc_204); 201 v204.misc_204.Per_reset_sig = 0; 202 fc->write_ibi_reg(fc,misc_204,v204); 203 msleep(1); 204 v204.misc_204.Per_reset_sig = 1; 205 fc->write_ibi_reg(fc,misc_204,v204); 206 } 207 208 void flexcop_reset_block_300(struct flexcop_device *fc) 209 { 210 flexcop_ibi_value v208_save = fc->read_ibi_reg(fc, ctrl_208), 211 v210 = fc->read_ibi_reg(fc, sw_reset_210); 212 213 deb_rdump("208: %08x, 210: %08x\n", v208_save.raw, v210.raw); 214 fc->write_ibi_reg(fc,ctrl_208,ibi_zero); 215 216 v210.sw_reset_210.reset_block_300 = 1; 217 v210.sw_reset_210.Block_reset_enable = 0xb2; 218 219 fc->write_ibi_reg(fc,sw_reset_210,v210); 220 fc->write_ibi_reg(fc,ctrl_208,v208_save); 221 } 222 223 struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len) 224 { 225 void *bus; 226 struct flexcop_device *fc = kzalloc(sizeof(struct flexcop_device), 227 GFP_KERNEL); 228 if (!fc) { 229 err("no memory"); 230 return NULL; 231 } 232 233 bus = kzalloc(bus_specific_len, GFP_KERNEL); 234 if (!bus) { 235 err("no memory"); 236 kfree(fc); 237 return NULL; 238 } 239 240 fc->bus_specific = bus; 241 242 return fc; 243 } 244 EXPORT_SYMBOL(flexcop_device_kmalloc); 245 246 void flexcop_device_kfree(struct flexcop_device *fc) 247 { 248 kfree(fc->bus_specific); 249 kfree(fc); 250 } 251 EXPORT_SYMBOL(flexcop_device_kfree); 252 253 int flexcop_device_initialize(struct flexcop_device *fc) 254 { 255 int ret; 256 ibi_zero.raw = 0; 257 258 flexcop_reset(fc); 259 flexcop_determine_revision(fc); 260 flexcop_sram_init(fc); 261 flexcop_hw_filter_init(fc); 262 flexcop_smc_ctrl(fc, 0); 263 264 ret = flexcop_dvb_init(fc); 265 if (ret) 266 goto error; 267 268 /* i2c has to be done before doing EEProm stuff - 269 * because the EEProm is accessed via i2c */ 270 ret = flexcop_i2c_init(fc); 271 if (ret) 272 goto error; 273 274 /* do the MAC address reading after initializing the dvb_adapter */ 275 if (fc->get_mac_addr(fc, 0) == 0) { 276 u8 *b = fc->dvb_adapter.proposed_mac; 277 info("MAC address = %pM", b); 278 flexcop_set_mac_filter(fc,b); 279 flexcop_mac_filter_ctrl(fc,1); 280 } else 281 warn("reading of MAC address failed.\n"); 282 283 ret = flexcop_frontend_init(fc); 284 if (ret) 285 goto error; 286 287 flexcop_device_name(fc,"initialization of","complete"); 288 return 0; 289 290 error: 291 flexcop_device_exit(fc); 292 return ret; 293 } 294 EXPORT_SYMBOL(flexcop_device_initialize); 295 296 void flexcop_device_exit(struct flexcop_device *fc) 297 { 298 flexcop_frontend_exit(fc); 299 flexcop_i2c_exit(fc); 300 flexcop_dvb_exit(fc); 301 } 302 EXPORT_SYMBOL(flexcop_device_exit); 303 304 static int flexcop_module_init(void) 305 { 306 info(DRIVER_NAME " loaded successfully"); 307 return 0; 308 } 309 310 static void flexcop_module_cleanup(void) 311 { 312 info(DRIVER_NAME " unloaded successfully"); 313 } 314 315 module_init(flexcop_module_init); 316 module_exit(flexcop_module_cleanup); 317 318 MODULE_AUTHOR(DRIVER_AUTHOR); 319 MODULE_DESCRIPTION(DRIVER_NAME); 320 MODULE_LICENSE("GPL"); 321