Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame^] | 1 | #include <linux/module.h> |
| 2 | #include <linux/init.h> |
| 3 | |
| 4 | #include "dmxdev.h" |
| 5 | #include "dvbdev.h" |
| 6 | #include "dvb_demux.h" |
| 7 | #include "dvb_frontend.h" |
| 8 | |
| 9 | #include "smskdefs.h" // page, scatterlist, kmutex |
| 10 | #include "smscoreapi.h" |
| 11 | #include "smstypes.h" |
| 12 | |
| 13 | typedef struct _smsdvb_client |
| 14 | { |
| 15 | struct list_head entry; |
| 16 | |
| 17 | smscore_device_t *coredev; |
| 18 | smscore_client_t *smsclient; |
| 19 | |
| 20 | struct dvb_adapter adapter; |
| 21 | struct dvb_demux demux; |
| 22 | struct dmxdev dmxdev; |
| 23 | struct dvb_frontend frontend; |
| 24 | |
| 25 | fe_status_t fe_status; |
| 26 | int fe_ber, fe_snr, fe_signal_strength; |
| 27 | |
| 28 | struct completion tune_done, stat_done; |
| 29 | |
| 30 | // todo: save freq/band instead whole struct |
| 31 | struct dvb_frontend_parameters fe_params; |
| 32 | |
| 33 | } smsdvb_client_t; |
| 34 | |
| 35 | struct list_head g_smsdvb_clients; |
| 36 | kmutex_t g_smsdvb_clientslock; |
| 37 | |
| 38 | int smsdvb_onresponse(void *context, smscore_buffer_t *cb) |
| 39 | { |
| 40 | smsdvb_client_t *client = (smsdvb_client_t *) context; |
| 41 | SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *)(((u8*) cb->p) + cb->offset); |
| 42 | |
| 43 | switch(phdr->msgType) |
| 44 | { |
| 45 | case MSG_SMS_DVBT_BDA_DATA: |
| 46 | dvb_dmx_swfilter(&client->demux, (u8*)(phdr + 1), cb->size - sizeof(SmsMsgHdr_ST)); |
| 47 | break; |
| 48 | |
| 49 | case MSG_SMS_RF_TUNE_RES: |
| 50 | complete(&client->tune_done); |
| 51 | break; |
| 52 | |
| 53 | case MSG_SMS_GET_STATISTICS_RES: |
| 54 | { |
| 55 | SmsMsgStatisticsInfo_ST* p = (SmsMsgStatisticsInfo_ST*)(phdr + 1); |
| 56 | |
| 57 | if (p->Stat.IsDemodLocked) |
| 58 | { |
| 59 | client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; |
| 60 | client->fe_snr = p->Stat.SNR; |
| 61 | client->fe_ber = p->Stat.BER; |
| 62 | |
| 63 | if (p->Stat.InBandPwr < -95) |
| 64 | client->fe_signal_strength = 0; |
| 65 | else if (p->Stat.InBandPwr > -29) |
| 66 | client->fe_signal_strength = 100; |
| 67 | else |
| 68 | client->fe_signal_strength = (p->Stat.InBandPwr + 95) * 3 / 2; |
| 69 | } |
| 70 | else |
| 71 | { |
| 72 | client->fe_status = 0; |
| 73 | client->fe_snr = |
| 74 | client->fe_ber = |
| 75 | client->fe_signal_strength = 0; |
| 76 | } |
| 77 | |
| 78 | complete(&client->stat_done); |
| 79 | break; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | smscore_putbuffer(client->coredev, cb); |
| 84 | |
| 85 | return 0; |
| 86 | } |
| 87 | |
| 88 | void smsdvb_unregister_client(smsdvb_client_t* client) |
| 89 | { |
| 90 | // must be called under clientslock |
| 91 | |
| 92 | list_del(&client->entry); |
| 93 | |
| 94 | smscore_unregister_client(client->smsclient); |
| 95 | dvb_unregister_frontend(&client->frontend); |
| 96 | dvb_dmxdev_release(&client->dmxdev); |
| 97 | dvb_dmx_release(&client->demux); |
| 98 | dvb_unregister_adapter(&client->adapter); |
| 99 | kfree(client); |
| 100 | } |
| 101 | |
| 102 | void smsdvb_onremove(void *context) |
| 103 | { |
| 104 | kmutex_lock(&g_smsdvb_clientslock); |
| 105 | |
| 106 | smsdvb_unregister_client((smsdvb_client_t*) context); |
| 107 | |
| 108 | kmutex_unlock(&g_smsdvb_clientslock); |
| 109 | } |
| 110 | |
| 111 | static int smsdvb_start_feed(struct dvb_demux_feed *feed) |
| 112 | { |
| 113 | smsdvb_client_t *client = container_of(feed->demux, smsdvb_client_t, demux); |
| 114 | SmsMsgData_ST PidMsg; |
| 115 | |
| 116 | printk("%s add pid %d(%x)\n", __FUNCTION__, feed->pid, feed->pid); |
| 117 | |
| 118 | PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; |
| 119 | PidMsg.xMsgHeader.msgDstId = HIF_TASK; |
| 120 | PidMsg.xMsgHeader.msgFlags = 0; |
| 121 | PidMsg.xMsgHeader.msgType = MSG_SMS_ADD_PID_FILTER_REQ; |
| 122 | PidMsg.xMsgHeader.msgLength = sizeof(PidMsg); |
| 123 | PidMsg.msgData[0] = feed->pid; |
| 124 | |
| 125 | return smsclient_sendrequest(client->smsclient, &PidMsg, sizeof(PidMsg)); |
| 126 | } |
| 127 | |
| 128 | static int smsdvb_stop_feed(struct dvb_demux_feed *feed) |
| 129 | { |
| 130 | smsdvb_client_t *client = container_of(feed->demux, smsdvb_client_t, demux); |
| 131 | SmsMsgData_ST PidMsg; |
| 132 | |
| 133 | printk("%s remove pid %d(%x)\n", __FUNCTION__, feed->pid, feed->pid); |
| 134 | |
| 135 | PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; |
| 136 | PidMsg.xMsgHeader.msgDstId = HIF_TASK; |
| 137 | PidMsg.xMsgHeader.msgFlags = 0; |
| 138 | PidMsg.xMsgHeader.msgType = MSG_SMS_REMOVE_PID_FILTER_REQ; |
| 139 | PidMsg.xMsgHeader.msgLength = sizeof(PidMsg); |
| 140 | PidMsg.msgData[0] = feed->pid; |
| 141 | |
| 142 | return smsclient_sendrequest(client->smsclient, &PidMsg, sizeof(PidMsg)); |
| 143 | } |
| 144 | |
| 145 | static int smsdvb_sendrequest_and_wait(smsdvb_client_t *client, void* buffer, size_t size, struct completion *completion) |
| 146 | { |
| 147 | int rc = smsclient_sendrequest(client->smsclient, buffer, size); |
| 148 | if (rc < 0) |
| 149 | return rc; |
| 150 | |
| 151 | return wait_for_completion_timeout(completion, msecs_to_jiffies(2000)) ? 0 : -ETIME; |
| 152 | } |
| 153 | |
| 154 | static int smsdvb_send_statistics_request(smsdvb_client_t *client) |
| 155 | { |
| 156 | SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ, DVBT_BDA_CONTROL_MSG_ID, HIF_TASK, sizeof(SmsMsgHdr_ST), 0 }; |
| 157 | return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), &client->stat_done); |
| 158 | } |
| 159 | |
| 160 | static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat) |
| 161 | { |
| 162 | smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); |
| 163 | int rc = smsdvb_send_statistics_request(client); |
| 164 | |
| 165 | if (!rc) |
| 166 | *stat = client->fe_status; |
| 167 | |
| 168 | return rc; |
| 169 | } |
| 170 | |
| 171 | static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber) |
| 172 | { |
| 173 | smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); |
| 174 | int rc = smsdvb_send_statistics_request(client); |
| 175 | |
| 176 | if (!rc) |
| 177 | *ber = client->fe_ber; |
| 178 | |
| 179 | return rc; |
| 180 | } |
| 181 | |
| 182 | static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength) |
| 183 | { |
| 184 | smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); |
| 185 | int rc = smsdvb_send_statistics_request(client); |
| 186 | |
| 187 | if (!rc) |
| 188 | *strength = client->fe_signal_strength; |
| 189 | |
| 190 | return rc; |
| 191 | } |
| 192 | |
| 193 | static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr) |
| 194 | { |
| 195 | smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); |
| 196 | int rc = smsdvb_send_statistics_request(client); |
| 197 | |
| 198 | if (!rc) |
| 199 | *snr = client->fe_snr; |
| 200 | |
| 201 | return rc; |
| 202 | } |
| 203 | |
| 204 | static int smsdvb_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune) |
| 205 | { |
| 206 | printk("%s\n", __FUNCTION__); |
| 207 | |
| 208 | tune->min_delay_ms = 400; |
| 209 | tune->step_size = 250000; |
| 210 | tune->max_drift = 0; |
| 211 | return 0; |
| 212 | } |
| 213 | |
| 214 | static int smsdvb_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) |
| 215 | { |
| 216 | smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); |
| 217 | |
| 218 | struct |
| 219 | { |
| 220 | SmsMsgHdr_ST Msg; |
| 221 | u32 Data[3]; |
| 222 | } Msg; |
| 223 | |
| 224 | Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; |
| 225 | Msg.Msg.msgDstId = HIF_TASK; |
| 226 | Msg.Msg.msgFlags = 0; |
| 227 | Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ; |
| 228 | Msg.Msg.msgLength = sizeof(Msg); |
| 229 | Msg.Data[0] = fep->frequency; |
| 230 | Msg.Data[2] = 12000000; |
| 231 | |
| 232 | printk("%s freq %d band %d\n", __FUNCTION__, fep->frequency, fep->u.ofdm.bandwidth); |
| 233 | |
| 234 | switch(fep->u.ofdm.bandwidth) |
| 235 | { |
| 236 | case BANDWIDTH_8_MHZ: Msg.Data[1] = BW_8_MHZ; break; |
| 237 | case BANDWIDTH_7_MHZ: Msg.Data[1] = BW_7_MHZ; break; |
| 238 | case BANDWIDTH_6_MHZ: Msg.Data[1] = BW_6_MHZ; break; |
| 239 | // case BANDWIDTH_5_MHZ: Msg.Data[1] = BW_5_MHZ; break; |
| 240 | case BANDWIDTH_AUTO: return -EOPNOTSUPP; |
| 241 | default: return -EINVAL; |
| 242 | } |
| 243 | |
| 244 | return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), &client->tune_done); |
| 245 | } |
| 246 | |
| 247 | static int smsdvb_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) |
| 248 | { |
| 249 | smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); |
| 250 | |
| 251 | printk("%s\n", __FUNCTION__); |
| 252 | |
| 253 | // todo: |
| 254 | memcpy(fep, &client->fe_params, sizeof(struct dvb_frontend_parameters)); |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | static void smsdvb_release(struct dvb_frontend *fe) |
| 259 | { |
| 260 | // do nothing |
| 261 | } |
| 262 | |
| 263 | static struct dvb_frontend_ops smsdvb_fe_ops = { |
| 264 | .info = { |
| 265 | .name = "Siano Mobile Digital SMS10xx", |
| 266 | .type = FE_OFDM, |
| 267 | .frequency_min = 44250000, |
| 268 | .frequency_max = 867250000, |
| 269 | .frequency_stepsize = 250000, |
| 270 | .caps = FE_CAN_INVERSION_AUTO | |
| 271 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
| 272 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | |
| 273 | FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | |
| 274 | FE_CAN_TRANSMISSION_MODE_AUTO | |
| 275 | FE_CAN_GUARD_INTERVAL_AUTO | |
| 276 | FE_CAN_RECOVER | |
| 277 | FE_CAN_HIERARCHY_AUTO, |
| 278 | }, |
| 279 | |
| 280 | .release = smsdvb_release, |
| 281 | |
| 282 | .set_frontend = smsdvb_set_frontend, |
| 283 | .get_frontend = smsdvb_get_frontend, |
| 284 | .get_tune_settings = smsdvb_get_tune_settings, |
| 285 | |
| 286 | .read_status = smsdvb_read_status, |
| 287 | .read_ber = smsdvb_read_ber, |
| 288 | .read_signal_strength = smsdvb_read_signal_strength, |
| 289 | .read_snr = smsdvb_read_snr, |
| 290 | }; |
| 291 | |
| 292 | int smsdvb_hotplug(smscore_device_t *coredev, struct device* device, int arrival) |
| 293 | { |
| 294 | smsclient_params_t params; |
| 295 | smsdvb_client_t* client; |
| 296 | int rc; |
| 297 | |
| 298 | // device removal handled by onremove callback |
| 299 | if (!arrival) |
| 300 | return 0; |
| 301 | |
| 302 | if (smscore_get_device_mode(coredev) != 4) |
| 303 | { |
| 304 | rc = smscore_set_device_mode(coredev, 4); |
| 305 | if (rc < 0) |
| 306 | return rc; |
| 307 | } |
| 308 | |
| 309 | client = kzalloc(sizeof(smsdvb_client_t), GFP_KERNEL); |
| 310 | if (!client) |
| 311 | { |
| 312 | printk(KERN_INFO "%s kmalloc() failed\n", __FUNCTION__); |
| 313 | return -ENOMEM; |
| 314 | } |
| 315 | |
| 316 | // register dvb adapter |
| 317 | rc = dvb_register_adapter(&client->adapter, "Siano Digital Receiver", THIS_MODULE, device); |
| 318 | if (rc < 0) |
| 319 | { |
| 320 | printk("%s dvb_register_adapter() failed %d\n", __func__, rc); |
| 321 | goto adapter_error; |
| 322 | } |
| 323 | |
| 324 | // init dvb demux |
| 325 | client->demux.dmx.capabilities = DMX_TS_FILTERING; |
| 326 | client->demux.filternum = 32; // todo: nova ??? |
| 327 | client->demux.feednum = 32; |
| 328 | client->demux.start_feed = smsdvb_start_feed; |
| 329 | client->demux.stop_feed = smsdvb_stop_feed; |
| 330 | |
| 331 | rc = dvb_dmx_init(&client->demux); |
| 332 | if (rc < 0) |
| 333 | { |
| 334 | printk("%s dvb_dmx_init failed %d\n\n", __FUNCTION__, rc); |
| 335 | goto dvbdmx_error; |
| 336 | } |
| 337 | |
| 338 | // init dmxdev |
| 339 | client->dmxdev.filternum = 32; |
| 340 | client->dmxdev.demux = &client->demux.dmx; |
| 341 | client->dmxdev.capabilities = 0; |
| 342 | |
| 343 | rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter); |
| 344 | if (rc < 0) |
| 345 | { |
| 346 | printk("%s dvb_dmxdev_init failed %d\n", __FUNCTION__, rc); |
| 347 | goto dmxdev_error; |
| 348 | } |
| 349 | |
| 350 | // init and register frontend |
| 351 | memcpy(&client->frontend.ops, &smsdvb_fe_ops, sizeof(struct dvb_frontend_ops)); |
| 352 | |
| 353 | rc = dvb_register_frontend(&client->adapter, &client->frontend); |
| 354 | if (rc < 0) |
| 355 | { |
| 356 | printk("%s frontend registration failed %d\n", __FUNCTION__, rc); |
| 357 | goto frontend_error; |
| 358 | } |
| 359 | |
| 360 | params.initial_id = 0; |
| 361 | params.data_type = MSG_SMS_DVBT_BDA_DATA; |
| 362 | params.onresponse_handler = smsdvb_onresponse; |
| 363 | params.onremove_handler = smsdvb_onremove; |
| 364 | params.context = client; |
| 365 | |
| 366 | rc = smscore_register_client(coredev, ¶ms, &client->smsclient); |
| 367 | if (rc < 0) |
| 368 | { |
| 369 | printk(KERN_INFO "%s smscore_register_client() failed %d\n", __FUNCTION__, rc); |
| 370 | goto client_error; |
| 371 | } |
| 372 | |
| 373 | client->coredev = coredev; |
| 374 | |
| 375 | init_completion(&client->tune_done); |
| 376 | init_completion(&client->stat_done); |
| 377 | |
| 378 | kmutex_lock(&g_smsdvb_clientslock); |
| 379 | |
| 380 | list_add(&client->entry, &g_smsdvb_clients); |
| 381 | |
| 382 | kmutex_unlock(&g_smsdvb_clientslock); |
| 383 | |
| 384 | printk(KERN_INFO "%s success\n", __FUNCTION__); |
| 385 | |
| 386 | return 0; |
| 387 | |
| 388 | client_error: |
| 389 | dvb_unregister_frontend(&client->frontend); |
| 390 | |
| 391 | frontend_error: |
| 392 | dvb_dmxdev_release(&client->dmxdev); |
| 393 | |
| 394 | dmxdev_error: |
| 395 | dvb_dmx_release(&client->demux); |
| 396 | |
| 397 | dvbdmx_error: |
| 398 | dvb_unregister_adapter(&client->adapter); |
| 399 | |
| 400 | adapter_error: |
| 401 | kfree(client); |
| 402 | return rc; |
| 403 | } |
| 404 | |
| 405 | int smsdvb_module_init(void) |
| 406 | { |
| 407 | int rc; |
| 408 | |
| 409 | INIT_LIST_HEAD(&g_smsdvb_clients); |
| 410 | kmutex_init(&g_smsdvb_clientslock); |
| 411 | |
| 412 | rc = smscore_register_hotplug(smsdvb_hotplug); |
| 413 | |
| 414 | printk(KERN_INFO "%s, rc %d\n", __FUNCTION__, rc); |
| 415 | |
| 416 | return rc; |
| 417 | } |
| 418 | |
| 419 | void smsdvb_module_exit(void) |
| 420 | { |
| 421 | smscore_unregister_hotplug(smsdvb_hotplug); |
| 422 | |
| 423 | kmutex_lock(&g_smsdvb_clientslock); |
| 424 | |
| 425 | while (!list_empty(&g_smsdvb_clients)) |
| 426 | smsdvb_unregister_client((smsdvb_client_t*) g_smsdvb_clients.next); |
| 427 | |
| 428 | kmutex_unlock(&g_smsdvb_clientslock); |
| 429 | |
| 430 | printk(KERN_INFO "%s\n", __FUNCTION__); |
| 431 | } |
| 432 | |
| 433 | module_init(smsdvb_module_init); |
| 434 | module_exit(smsdvb_module_exit); |
| 435 | |
| 436 | MODULE_DESCRIPTION("smsdvb dvb-api module"); |
| 437 | MODULE_AUTHOR("Anatoly Greenblatt,,, (anatolyg@siano-ms.com)"); |
| 438 | MODULE_LICENSE("GPL"); |