2 * Driver for the Siano SMS1xxx USB dongle
4 * author: Anatoly Greenblat
6 * Copyright (c), 2005-2008 Siano Mobile Silicon, Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation;
12 * Software distributed under the License is distributed on an "AS IS"
13 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
15 * See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <linux/module.h>
23 #include <linux/init.h>
25 #include "smscoreapi.h"
26 #include "sms-cards.h"
28 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
30 static struct list_head g_smsdvb_clients;
31 static struct mutex g_smsdvb_clientslock;
33 static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
35 struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
36 struct SmsMsgHdr_ST *phdr =
37 (struct SmsMsgHdr_ST *)(((u8 *) cb->p) + cb->offset);
39 switch (phdr->msgType) {
40 case MSG_SMS_DVBT_BDA_DATA:
41 dvb_dmx_swfilter(&client->demux, (u8 *)(phdr + 1),
42 cb->size - sizeof(struct SmsMsgHdr_ST));
45 case MSG_SMS_RF_TUNE_RES:
46 complete(&client->tune_done);
49 case MSG_SMS_GET_STATISTICS_RES:
51 struct SmsMsgStatisticsInfo_ST *p =
52 (struct SmsMsgStatisticsInfo_ST *)(phdr + 1);
54 if (p->Stat.IsDemodLocked) {
55 client->fe_status = FE_HAS_SIGNAL |
61 client->fe_snr = p->Stat.SNR;
62 client->fe_ber = p->Stat.BER;
63 client->fe_unc = p->Stat.BERErrorCount;
65 if (p->Stat.InBandPwr < -95)
66 client->fe_signal_strength = 0;
67 else if (p->Stat.InBandPwr > -29)
68 client->fe_signal_strength = 100;
70 client->fe_signal_strength =
71 (p->Stat.InBandPwr + 95) * 3 / 2;
73 client->fe_status = 0;
77 client->fe_signal_strength = 0;
80 complete(&client->stat_done);
84 smscore_putbuffer(client->coredev, cb);
89 static void smsdvb_unregister_client(struct smsdvb_client_t *client)
91 /* must be called under clientslock */
93 list_del(&client->entry);
95 smscore_unregister_client(client->smsclient);
96 dvb_unregister_frontend(&client->frontend);
97 dvb_dmxdev_release(&client->dmxdev);
98 dvb_dmx_release(&client->demux);
99 dvb_unregister_adapter(&client->adapter);
103 static void smsdvb_onremove(void *context)
105 kmutex_lock(&g_smsdvb_clientslock);
107 smsdvb_unregister_client((struct smsdvb_client_t *) context);
109 kmutex_unlock(&g_smsdvb_clientslock);
112 static int smsdvb_start_feed(struct dvb_demux_feed *feed)
114 struct smsdvb_client_t *client =
115 container_of(feed->demux, struct smsdvb_client_t, demux);
116 struct SmsMsgData_ST PidMsg;
118 sms_debug("add pid %d(%x)",
119 feed->pid, feed->pid);
121 PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
122 PidMsg.xMsgHeader.msgDstId = HIF_TASK;
123 PidMsg.xMsgHeader.msgFlags = 0;
124 PidMsg.xMsgHeader.msgType = MSG_SMS_ADD_PID_FILTER_REQ;
125 PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
126 PidMsg.msgData[0] = feed->pid;
128 return smsclient_sendrequest(client->smsclient,
129 &PidMsg, sizeof(PidMsg));
132 static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
134 struct smsdvb_client_t *client =
135 container_of(feed->demux, struct smsdvb_client_t, demux);
136 struct SmsMsgData_ST PidMsg;
138 sms_debug("remove pid %d(%x)",
139 feed->pid, feed->pid);
141 PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
142 PidMsg.xMsgHeader.msgDstId = HIF_TASK;
143 PidMsg.xMsgHeader.msgFlags = 0;
144 PidMsg.xMsgHeader.msgType = MSG_SMS_REMOVE_PID_FILTER_REQ;
145 PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
146 PidMsg.msgData[0] = feed->pid;
148 return smsclient_sendrequest(client->smsclient,
149 &PidMsg, sizeof(PidMsg));
152 static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
153 void *buffer, size_t size,
154 struct completion *completion)
156 int rc = smsclient_sendrequest(client->smsclient, buffer, size);
160 return wait_for_completion_timeout(completion,
161 msecs_to_jiffies(2000)) ?
165 static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
167 struct SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ,
168 DVBT_BDA_CONTROL_MSG_ID,
169 HIF_TASK, sizeof(struct SmsMsgHdr_ST), 0 };
170 int ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
175 if (client->fe_status & FE_HAS_LOCK)
176 sms_board_led_feedback(client->coredev,
177 (client->fe_unc == 0) ?
178 SMS_LED_HI : SMS_LED_LO);
180 sms_board_led_feedback(client->coredev, SMS_LED_OFF);
184 static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
186 struct smsdvb_client_t *client =
187 container_of(fe, struct smsdvb_client_t, frontend);
188 int rc = smsdvb_send_statistics_request(client);
191 *stat = client->fe_status;
196 static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
198 struct smsdvb_client_t *client =
199 container_of(fe, struct smsdvb_client_t, frontend);
200 int rc = smsdvb_send_statistics_request(client);
203 *ber = client->fe_ber;
208 static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
210 struct smsdvb_client_t *client =
211 container_of(fe, struct smsdvb_client_t, frontend);
212 int rc = smsdvb_send_statistics_request(client);
215 *strength = client->fe_signal_strength;
220 static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
222 struct smsdvb_client_t *client =
223 container_of(fe, struct smsdvb_client_t, frontend);
224 int rc = smsdvb_send_statistics_request(client);
227 *snr = client->fe_snr;
232 static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
234 struct smsdvb_client_t *client =
235 container_of(fe, struct smsdvb_client_t, frontend);
236 int rc = smsdvb_send_statistics_request(client);
239 *ucblocks = client->fe_unc;
244 static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
245 struct dvb_frontend_tune_settings *tune)
249 tune->min_delay_ms = 400;
250 tune->step_size = 250000;
255 static int smsdvb_set_frontend(struct dvb_frontend *fe,
256 struct dvb_frontend_parameters *fep)
258 struct smsdvb_client_t *client =
259 container_of(fe, struct smsdvb_client_t, frontend);
262 struct SmsMsgHdr_ST Msg;
267 Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
268 Msg.Msg.msgDstId = HIF_TASK;
269 Msg.Msg.msgFlags = 0;
270 Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ;
271 Msg.Msg.msgLength = sizeof(Msg);
272 Msg.Data[0] = fep->frequency;
273 Msg.Data[2] = 12000000;
275 sms_debug("freq %d band %d",
276 fep->frequency, fep->u.ofdm.bandwidth);
278 switch (fep->u.ofdm.bandwidth) {
279 case BANDWIDTH_8_MHZ: Msg.Data[1] = BW_8_MHZ; break;
280 case BANDWIDTH_7_MHZ: Msg.Data[1] = BW_7_MHZ; break;
281 case BANDWIDTH_6_MHZ: Msg.Data[1] = BW_6_MHZ; break;
282 case BANDWIDTH_AUTO: return -EOPNOTSUPP;
283 default: return -EINVAL;
286 /* Disable LNA, if any. An error is returned if no LNA is present */
287 ret = sms_board_lna_control(client->coredev, 0);
291 /* tune with LNA off at first */
292 ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
295 smsdvb_read_status(fe, &status);
297 if (status & FE_HAS_LOCK)
300 /* previous tune didnt lock - enable LNA and tune again */
301 sms_board_lna_control(client->coredev, 1);
304 return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
308 static int smsdvb_get_frontend(struct dvb_frontend *fe,
309 struct dvb_frontend_parameters *fep)
311 struct smsdvb_client_t *client =
312 container_of(fe, struct smsdvb_client_t, frontend);
317 memcpy(fep, &client->fe_params,
318 sizeof(struct dvb_frontend_parameters));
323 static int smsdvb_init(struct dvb_frontend *fe)
325 struct smsdvb_client_t *client =
326 container_of(fe, struct smsdvb_client_t, frontend);
328 sms_board_power(client->coredev, 1);
333 static int smsdvb_sleep(struct dvb_frontend *fe)
335 struct smsdvb_client_t *client =
336 container_of(fe, struct smsdvb_client_t, frontend);
338 sms_board_led_feedback(client->coredev, SMS_LED_OFF);
339 sms_board_power(client->coredev, 0);
344 static void smsdvb_release(struct dvb_frontend *fe)
349 static struct dvb_frontend_ops smsdvb_fe_ops = {
351 .name = "Siano Mobile Digital SMS1xxx",
353 .frequency_min = 44250000,
354 .frequency_max = 867250000,
355 .frequency_stepsize = 250000,
356 .caps = FE_CAN_INVERSION_AUTO |
357 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
358 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
359 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
360 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
361 FE_CAN_GUARD_INTERVAL_AUTO |
363 FE_CAN_HIERARCHY_AUTO,
366 .release = smsdvb_release,
368 .set_frontend = smsdvb_set_frontend,
369 .get_frontend = smsdvb_get_frontend,
370 .get_tune_settings = smsdvb_get_tune_settings,
372 .read_status = smsdvb_read_status,
373 .read_ber = smsdvb_read_ber,
374 .read_signal_strength = smsdvb_read_signal_strength,
375 .read_snr = smsdvb_read_snr,
376 .read_ucblocks = smsdvb_read_ucblocks,
379 .sleep = smsdvb_sleep,
382 static int smsdvb_hotplug(struct smscore_device_t *coredev,
383 struct device *device, int arrival)
385 struct smsclient_params_t params;
386 struct smsdvb_client_t *client;
389 /* device removal handled by onremove callback */
393 if (smscore_get_device_mode(coredev) != 4) {
394 sms_err("SMS Device mode is not set for "
399 client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
401 sms_err("kmalloc() failed");
405 /* register dvb adapter */
406 rc = dvb_register_adapter(&client->adapter,
408 smscore_get_board_id(coredev))->name,
409 THIS_MODULE, device, adapter_nr);
411 sms_err("dvb_register_adapter() failed %d", rc);
416 client->demux.dmx.capabilities = DMX_TS_FILTERING;
417 client->demux.filternum = 32; /* todo: nova ??? */
418 client->demux.feednum = 32;
419 client->demux.start_feed = smsdvb_start_feed;
420 client->demux.stop_feed = smsdvb_stop_feed;
422 rc = dvb_dmx_init(&client->demux);
424 sms_err("dvb_dmx_init failed %d", rc);
429 client->dmxdev.filternum = 32;
430 client->dmxdev.demux = &client->demux.dmx;
431 client->dmxdev.capabilities = 0;
433 rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
435 sms_err("dvb_dmxdev_init failed %d", rc);
439 /* init and register frontend */
440 memcpy(&client->frontend.ops, &smsdvb_fe_ops,
441 sizeof(struct dvb_frontend_ops));
443 rc = dvb_register_frontend(&client->adapter, &client->frontend);
445 sms_err("frontend registration failed %d", rc);
449 params.initial_id = 1;
450 params.data_type = MSG_SMS_DVBT_BDA_DATA;
451 params.onresponse_handler = smsdvb_onresponse;
452 params.onremove_handler = smsdvb_onremove;
453 params.context = client;
455 rc = smscore_register_client(coredev, ¶ms, &client->smsclient);
457 sms_err("smscore_register_client() failed %d", rc);
461 client->coredev = coredev;
463 init_completion(&client->tune_done);
464 init_completion(&client->stat_done);
466 kmutex_lock(&g_smsdvb_clientslock);
468 list_add(&client->entry, &g_smsdvb_clients);
470 kmutex_unlock(&g_smsdvb_clientslock);
474 sms_board_setup(coredev);
479 dvb_unregister_frontend(&client->frontend);
482 dvb_dmxdev_release(&client->dmxdev);
485 dvb_dmx_release(&client->demux);
488 dvb_unregister_adapter(&client->adapter);
495 int smsdvb_register(void)
499 INIT_LIST_HEAD(&g_smsdvb_clients);
500 kmutex_init(&g_smsdvb_clientslock);
502 rc = smscore_register_hotplug(smsdvb_hotplug);
509 void smsdvb_unregister(void)
511 smscore_unregister_hotplug(smsdvb_hotplug);
513 kmutex_lock(&g_smsdvb_clientslock);
515 while (!list_empty(&g_smsdvb_clients))
516 smsdvb_unregister_client(
517 (struct smsdvb_client_t *) g_smsdvb_clients.next);
519 kmutex_unlock(&g_smsdvb_clientslock);