drivers/media/dvb/firesat/firesat_dvb.c

   1 /*
   2  * FireSAT DVB driver
   3  *
   4  * Copyright (c) ?
   5  * Copyright (c) 2008 Henrik Kurelid <henrik@kurelid.se>
   6  *
   7  *      This program is free software; you can redistribute it and/or
   8  *      modify it under the terms of the GNU General Public License as
   9  *      published by the Free Software Foundation; either version 2 of
  10  *      the License, or (at your option) any later version.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/slab.h>
  15 #include <linux/wait.h>
  16 #include <linux/module.h>
  17 #include <linux/delay.h>
  18 #include <linux/time.h>
  19 #include <linux/errno.h>
  20 #include <linux/interrupt.h>
  21 #include <ieee1394_hotplug.h>
  22 #include <nodemgr.h>
  23 #include <highlevel.h>
  24 #include <ohci1394.h>
  25 #include <hosts.h>
  26 #include <dvbdev.h>
  27
  28 #include "firesat.h"
  29 #include "avc_api.h"
  30 #include "cmp.h"
  31 #include "firesat-rc.h"
  32 #include "firesat-ci.h"
  33
  34 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  35
  36 static struct firesat_channel *firesat_channel_allocate(struct firesat *firesat)
  37 {
  38         int k;
  39
  40         //printk(KERN_INFO "%s\n", __func__);
  41
  42         if (down_interruptible(&firesat->demux_sem))
  43                 return NULL;
  44
  45         for (k = 0; k < 16; k++) {
  46                 //printk(KERN_INFO "%s: channel %d: active = %d, pid = 0x%x\n",__func__,k,firesat->channel[k].active,firesat->channel[k].pid);
  47
  48                 if (firesat->channel[k].active == 0) {
  49                         firesat->channel[k].active = 1;
  50                         up(&firesat->demux_sem);
  51                         return &firesat->channel[k];
  52                 }
  53         }
  54
  55         up(&firesat->demux_sem);
  56         return NULL; // no more channels available
  57 }
  58
  59 static int firesat_channel_collect(struct firesat *firesat, int *pidc, u16 pid[])
  60 {
  61         int k, l = 0;
  62
  63         if (down_interruptible(&firesat->demux_sem))
  64                 return -EINTR;
  65
  66         for (k = 0; k < 16; k++)
  67                 if (firesat->channel[k].active == 1)
  68                         pid[l++] = firesat->channel[k].pid;
  69
  70         up(&firesat->demux_sem);
  71
  72         *pidc = l;
  73
  74         return 0;
  75 }
  76
  77 static int firesat_channel_release(struct firesat *firesat,
  78                                    struct firesat_channel *channel)
  79 {
  80         if (down_interruptible(&firesat->demux_sem))
  81                 return -EINTR;
  82
  83         channel->active = 0;
  84
  85         up(&firesat->demux_sem);
  86         return 0;
  87 }
  88
  89 int firesat_start_feed(struct dvb_demux_feed *dvbdmxfeed)
  90 {
  91         struct firesat *firesat = (struct firesat*)dvbdmxfeed->demux->priv;
  92         struct firesat_channel *channel;
  93         int pidc,k;
  94         u16 pids[16];
  95
  96 //      printk(KERN_INFO "%s (pid %u)\n", __func__, dvbdmxfeed->pid);
  97
  98         switch (dvbdmxfeed->type) {
  99         case DMX_TYPE_TS:
 100         case DMX_TYPE_SEC:
 101                 break;
 102         default:
 103                 printk(KERN_ERR "%s: invalid type %u\n",
 104                        __func__, dvbdmxfeed->type);
 105                 return -EINVAL;
 106         }
 107
 108         if (dvbdmxfeed->type == DMX_TYPE_TS) {
 109                 switch (dvbdmxfeed->pes_type) {
 110                 case DMX_TS_PES_VIDEO:
 111                 case DMX_TS_PES_AUDIO:
 112                 case DMX_TS_PES_TELETEXT:
 113                 case DMX_TS_PES_PCR:
 114                 case DMX_TS_PES_OTHER:
 115                         //Dirty fix to keep firesat->channel pid-list up to date
 116                         for(k=0;k<16;k++){
 117                                 if(firesat->channel[k].active == 0)
 118                                         firesat->channel[k].pid =
 119                                                 dvbdmxfeed->pid;
 120                                         break;
 121                         }
 122                         channel = firesat_channel_allocate(firesat);
 123                         break;
 124                 default:
 125                         printk(KERN_ERR "%s: invalid pes type %u\n",
 126                                __func__, dvbdmxfeed->pes_type);
 127                         return -EINVAL;
 128                 }
 129         } else {
 130                 channel = firesat_channel_allocate(firesat);
 131         }
 132
 133         if (!channel) {
 134                 printk(KERN_ERR "%s: busy!\n", __func__);
 135                 return -EBUSY;
 136         }
 137
 138         dvbdmxfeed->priv = channel;
 139
 140         channel->dvbdmxfeed = dvbdmxfeed;
 141         channel->pid = dvbdmxfeed->pid;
 142         channel->type = dvbdmxfeed->type;
 143         channel->firesat = firesat;
 144
 145         if (firesat_channel_collect(firesat, &pidc, pids)) {
 146                 firesat_channel_release(firesat, channel);
 147                 printk(KERN_ERR "%s: could not collect pids!\n", __func__);
 148                 return -EINTR;
 149         }
 150
 151         if(dvbdmxfeed->pid == 8192) {
 152                 if((k = AVCTuner_GetTS(firesat))) {
 153                         firesat_channel_release(firesat, channel);
 154                         printk("%s: AVCTuner_GetTS failed with error %d\n",
 155                                __func__, k);
 156                         return k;
 157                 }
 158         }
 159         else {
 160                 if((k = AVCTuner_SetPIDs(firesat, pidc, pids))) {
 161                         firesat_channel_release(firesat, channel);
 162                         printk("%s: AVCTuner_SetPIDs failed with error %d\n",
 163                                __func__, k);
 164                         return k;
 165                 }
 166         }
 167
 168         return 0;
 169 }
 170
 171 int firesat_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 172 {
 173         struct dvb_demux *demux = dvbdmxfeed->demux;
 174         struct firesat *firesat = (struct firesat*)demux->priv;
 175         int k, l = 0;
 176         u16 pids[16];
 177
 178         //printk(KERN_INFO "%s (pid %u)\n", __func__, dvbdmxfeed->pid);
 179
 180         if (dvbdmxfeed->type == DMX_TYPE_TS && !((dvbdmxfeed->ts_type & TS_PACKET) &&
 181                                 (demux->dmx.frontend->source != DMX_MEMORY_FE))) {
 182
 183                 if (dvbdmxfeed->ts_type & TS_DECODER) {
 184
 185                         if (dvbdmxfeed->pes_type >= DMX_TS_PES_OTHER ||
 186                                 !demux->pesfilter[dvbdmxfeed->pes_type])
 187
 188                                 return -EINVAL;
 189
 190                         demux->pids[dvbdmxfeed->pes_type] |= 0x8000;
 191                         demux->pesfilter[dvbdmxfeed->pes_type] = 0;
 192                 }
 193
 194                 if (!(dvbdmxfeed->ts_type & TS_DECODER &&
 195                         dvbdmxfeed->pes_type < DMX_TS_PES_OTHER))
 196
 197                         return 0;
 198         }
 199
 200         if (down_interruptible(&firesat->demux_sem))
 201                 return -EINTR;
 202
 203
 204         // list except channel to be removed
 205         for (k = 0; k < 16; k++)
 206                 if (firesat->channel[k].active == 1) {
 207                         if (&firesat->channel[k] !=
 208                                 (struct firesat_channel *)dvbdmxfeed->priv)
 209                                 pids[l++] = firesat->channel[k].pid;
 210                         else
 211                                 firesat->channel[k].active = 0;
 212                 }
 213
 214         if ((k = AVCTuner_SetPIDs(firesat, l, pids))) {
 215                 up(&firesat->demux_sem);
 216                 return k;
 217         }
 218
 219         ((struct firesat_channel *)dvbdmxfeed->priv)->active = 0;
 220
 221         up(&firesat->demux_sem);
 222
 223         return 0;
 224 }
 225
 226 int firesat_dvbdev_init(struct firesat *firesat,
 227                         struct device *dev,
 228                         struct dvb_frontend *fe)
 229 {
 230         int result;
 231
 232 #if 0
 233                 switch (firesat->type) {
 234                 case FireSAT_DVB_S:
 235                         firesat->model_name = "FireSAT DVB-S";
 236                         firesat->frontend_info = &firesat_S_frontend_info;
 237                         break;
 238                 case FireSAT_DVB_C:
 239                         firesat->model_name = "FireSAT DVB-C";
 240                         firesat->frontend_info = &firesat_C_frontend_info;
 241                         break;
 242                 case FireSAT_DVB_T:
 243                         firesat->model_name = "FireSAT DVB-T";
 244                         firesat->frontend_info = &firesat_T_frontend_info;
 245                         break;
 246                 default:
 247                         printk("%s: unknown model type 0x%x on subunit %d!\n",
 248                                 __func__, firesat->type,subunit);
 249                         firesat->model_name = "Unknown";
 250                         firesat->frontend_info = NULL;
 251                 }
 252 #endif
 253 /* // ------- CRAP -----------
 254                 if (!firesat->frontend_info) {
 255                         spin_lock_irqsave(&firesat_list_lock, flags);
 256                         list_del(&firesat->list);
 257                         spin_unlock_irqrestore(&firesat_list_lock, flags);
 258                         kfree(firesat);
 259                         continue;
 260                 }
 261 */
 262                 //initialising firesat->adapter before calling dvb_register_adapter
 263                 if (!(firesat->adapter = kmalloc(sizeof (struct dvb_adapter), GFP_KERNEL))) {
 264                         printk("%s: couldn't allocate memory.\n", __func__);
 265                         kfree(firesat->adapter);
 266                         kfree(firesat);
 267                         return -ENOMEM;
 268                 }
 269
 270                 if ((result = DVB_REGISTER_ADAPTER(firesat->adapter,
 271                                                    firesat->model_name,
 272                                                    THIS_MODULE,
 273                                                    dev, adapter_nr)) < 0) {
 274
 275                         printk("%s: dvb_register_adapter failed: error %d\n", __func__, result);
 276 #if 0
 277                         /* ### cleanup */
 278                         spin_lock_irqsave(&firesat_list_lock, flags);
 279                         list_del(&firesat->list);
 280                         spin_unlock_irqrestore(&firesat_list_lock, flags);
 281 #endif
 282                         kfree(firesat);
 283
 284                         return result;
 285                 }
 286
 287                 memset(&firesat->demux, 0, sizeof(struct dvb_demux));
 288                 firesat->demux.dmx.capabilities = 0/*DMX_TS_FILTERING | DMX_SECTION_FILTERING*/;
 289
 290                 firesat->demux.priv             = (void *)firesat;
 291                 firesat->demux.filternum        = 16;
 292                 firesat->demux.feednum          = 16;
 293                 firesat->demux.start_feed       = firesat_start_feed;
 294                 firesat->demux.stop_feed        = firesat_stop_feed;
 295                 firesat->demux.write_to_decoder = NULL;
 296
 297                 if ((result = dvb_dmx_init(&firesat->demux)) < 0) {
 298                         printk("%s: dvb_dmx_init failed: error %d\n", __func__,
 299                                    result);
 300
 301                         dvb_unregister_adapter(firesat->adapter);
 302
 303                         return result;
 304                 }
 305
 306                 firesat->dmxdev.filternum       = 16;
 307                 firesat->dmxdev.demux           = &firesat->demux.dmx;
 308                 firesat->dmxdev.capabilities    = 0;
 309
 310                 if ((result = dvb_dmxdev_init(&firesat->dmxdev, firesat->adapter)) < 0) {
 311                         printk("%s: dvb_dmxdev_init failed: error %d\n",
 312                                    __func__, result);
 313
 314                         dvb_dmx_release(&firesat->demux);
 315                         dvb_unregister_adapter(firesat->adapter);
 316
 317                         return result;
 318                 }
 319
 320                 firesat->frontend.source = DMX_FRONTEND_0;
 321
 322                 if ((result = firesat->demux.dmx.add_frontend(&firesat->demux.dmx,
 323                                                           &firesat->frontend)) < 0) {
 324                         printk("%s: dvb_dmx_init failed: error %d\n", __func__,
 325                                    result);
 326
 327                         dvb_dmxdev_release(&firesat->dmxdev);
 328                         dvb_dmx_release(&firesat->demux);
 329                         dvb_unregister_adapter(firesat->adapter);
 330
 331                         return result;
 332                 }
 333
 334                 if ((result = firesat->demux.dmx.connect_frontend(&firesat->demux.dmx,
 335                                                                   &firesat->frontend)) < 0) {
 336                         printk("%s: dvb_dmx_init failed: error %d\n", __func__,
 337                                    result);
 338
 339                         firesat->demux.dmx.remove_frontend(&firesat->demux.dmx, &firesat->frontend);
 340                         dvb_dmxdev_release(&firesat->dmxdev);
 341                         dvb_dmx_release(&firesat->demux);
 342                         dvb_unregister_adapter(firesat->adapter);
 343
 344                         return result;
 345                 }
 346
 347                 dvb_net_init(firesat->adapter, &firesat->dvbnet, &firesat->demux.dmx);
 348
 349 //              fe->ops = firesat_ops;
 350 //              fe->dvb = firesat->adapter;
 351                 firesat_frontend_attach(firesat, fe);
 352
 353                 fe->sec_priv = firesat; //IMPORTANT, functions depend on this!!!
 354                 if ((result= dvb_register_frontend(firesat->adapter, fe)) < 0) {
 355                         printk("%s: dvb_register_frontend_new failed: error %d\n", __func__, result);
 356                         /* ### cleanup */
 357                         return result;
 358                 }
 359
 360                         firesat_ca_init(firesat);
 361
 362                 return 0;
 363 }
 364
 365