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-rw-r--r--drivers/media/dvb/siano/smsdvb.c449
1 files changed, 449 insertions, 0 deletions
diff --git a/drivers/media/dvb/siano/smsdvb.c b/drivers/media/dvb/siano/smsdvb.c
new file mode 100644
index 000000000000..6f9c18563867
--- /dev/null
+++ b/drivers/media/dvb/siano/smsdvb.c
@@ -0,0 +1,449 @@
1/*
2 * Driver for the Siano SMS1xxx USB dongle
3 *
4 * author: Anatoly Greenblat
5 *
6 * Copyright (c), 2005-2008 Siano Mobile Silicon, Inc.
7 *
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 3 as
10 * published by the Free Software Foundation;
11 *
12 * Software distributed under the License is distributed on an "AS IS"
13 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
14 *
15 * See the GNU General Public License for more details.
16 *
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.
20 */
21
22#include <linux/module.h>
23#include <linux/init.h>
24
25#include "smscoreapi.h"
26#include "sms-cards.h"
27
28DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
29
30struct list_head g_smsdvb_clients;
31struct mutex g_smsdvb_clientslock;
32
33static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
34{
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);
38
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));
43 break;
44
45 case MSG_SMS_RF_TUNE_RES:
46 complete(&client->tune_done);
47 break;
48
49 case MSG_SMS_GET_STATISTICS_RES:
50 {
51 struct SmsMsgStatisticsInfo_ST *p =
52 (struct SmsMsgStatisticsInfo_ST *)(phdr + 1);
53
54 if (p->Stat.IsDemodLocked) {
55 client->fe_status = FE_HAS_SIGNAL |
56 FE_HAS_CARRIER |
57 FE_HAS_VITERBI |
58 FE_HAS_SYNC |
59 FE_HAS_LOCK;
60
61 client->fe_snr = p->Stat.SNR;
62 client->fe_ber = p->Stat.BER;
63
64 if (p->Stat.InBandPwr < -95)
65 client->fe_signal_strength = 0;
66 else if (p->Stat.InBandPwr > -29)
67 client->fe_signal_strength = 100;
68 else
69 client->fe_signal_strength =
70 (p->Stat.InBandPwr + 95) * 3 / 2;
71 } else {
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 smscore_putbuffer(client->coredev, cb);
83
84 return 0;
85}
86
87static void smsdvb_unregister_client(struct smsdvb_client_t *client)
88{
89 /* must be called under clientslock */
90
91 list_del(&client->entry);
92
93 smscore_unregister_client(client->smsclient);
94 dvb_unregister_frontend(&client->frontend);
95 dvb_dmxdev_release(&client->dmxdev);
96 dvb_dmx_release(&client->demux);
97 dvb_unregister_adapter(&client->adapter);
98 kfree(client);
99}
100
101static void smsdvb_onremove(void *context)
102{
103 kmutex_lock(&g_smsdvb_clientslock);
104
105 smsdvb_unregister_client((struct smsdvb_client_t *) context);
106
107 kmutex_unlock(&g_smsdvb_clientslock);
108}
109
110static int smsdvb_start_feed(struct dvb_demux_feed *feed)
111{
112 struct smsdvb_client_t *client =
113 container_of(feed->demux, struct smsdvb_client_t, demux);
114 struct SmsMsgData_ST PidMsg;
115
116 sms_debug("add pid %d(%x)",
117 feed->pid, feed->pid);
118
119 PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
120 PidMsg.xMsgHeader.msgDstId = HIF_TASK;
121 PidMsg.xMsgHeader.msgFlags = 0;
122 PidMsg.xMsgHeader.msgType = MSG_SMS_ADD_PID_FILTER_REQ;
123 PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
124 PidMsg.msgData[0] = feed->pid;
125
126 return smsclient_sendrequest(client->smsclient,
127 &PidMsg, sizeof(PidMsg));
128}
129
130static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
131{
132 struct smsdvb_client_t *client =
133 container_of(feed->demux, struct smsdvb_client_t, demux);
134 struct SmsMsgData_ST PidMsg;
135
136 sms_debug("remove pid %d(%x)",
137 feed->pid, feed->pid);
138
139 PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
140 PidMsg.xMsgHeader.msgDstId = HIF_TASK;
141 PidMsg.xMsgHeader.msgFlags = 0;
142 PidMsg.xMsgHeader.msgType = MSG_SMS_REMOVE_PID_FILTER_REQ;
143 PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
144 PidMsg.msgData[0] = feed->pid;
145
146 return smsclient_sendrequest(client->smsclient,
147 &PidMsg, sizeof(PidMsg));
148}
149
150static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
151 void *buffer, size_t size,
152 struct completion *completion)
153{
154 int rc = smsclient_sendrequest(client->smsclient, buffer, size);
155 if (rc < 0)
156 return rc;
157
158 return wait_for_completion_timeout(completion,
159 msecs_to_jiffies(2000)) ?
160 0 : -ETIME;
161}
162
163static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
164{
165 struct SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ,
166 DVBT_BDA_CONTROL_MSG_ID,
167 HIF_TASK, sizeof(struct SmsMsgHdr_ST), 0 };
168 return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
169 &client->stat_done);
170}
171
172static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
173{
174 struct smsdvb_client_t *client =
175 container_of(fe, struct smsdvb_client_t, frontend);
176 int rc = smsdvb_send_statistics_request(client);
177
178 if (!rc)
179 *stat = client->fe_status;
180
181 return rc;
182}
183
184static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
185{
186 struct smsdvb_client_t *client =
187 container_of(fe, struct smsdvb_client_t, frontend);
188 int rc = smsdvb_send_statistics_request(client);
189
190 if (!rc)
191 *ber = client->fe_ber;
192
193 return rc;
194}
195
196static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
197{
198 struct smsdvb_client_t *client =
199 container_of(fe, struct smsdvb_client_t, frontend);
200 int rc = smsdvb_send_statistics_request(client);
201
202 if (!rc)
203 *strength = client->fe_signal_strength;
204
205 return rc;
206}
207
208static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
209{
210 struct smsdvb_client_t *client =
211 container_of(fe, struct smsdvb_client_t, frontend);
212 int rc = smsdvb_send_statistics_request(client);
213
214 if (!rc)
215 *snr = client->fe_snr;
216
217 return rc;
218}
219
220static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
221 struct dvb_frontend_tune_settings *tune)
222{
223 sms_debug("");
224
225 tune->min_delay_ms = 400;
226 tune->step_size = 250000;
227 tune->max_drift = 0;
228 return 0;
229}
230
231static int smsdvb_set_frontend(struct dvb_frontend *fe,
232 struct dvb_frontend_parameters *fep)
233{
234 struct smsdvb_client_t *client =
235 container_of(fe, struct smsdvb_client_t, frontend);
236
237 struct {
238 struct SmsMsgHdr_ST Msg;
239 u32 Data[3];
240 } Msg;
241
242 Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
243 Msg.Msg.msgDstId = HIF_TASK;
244 Msg.Msg.msgFlags = 0;
245 Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ;
246 Msg.Msg.msgLength = sizeof(Msg);
247 Msg.Data[0] = fep->frequency;
248 Msg.Data[2] = 12000000;
249
250 sms_debug("freq %d band %d",
251 fep->frequency, fep->u.ofdm.bandwidth);
252
253 switch (fep->u.ofdm.bandwidth) {
254 case BANDWIDTH_8_MHZ: Msg.Data[1] = BW_8_MHZ; break;
255 case BANDWIDTH_7_MHZ: Msg.Data[1] = BW_7_MHZ; break;
256 case BANDWIDTH_6_MHZ: Msg.Data[1] = BW_6_MHZ; break;
257 case BANDWIDTH_AUTO: return -EOPNOTSUPP;
258 default: return -EINVAL;
259 }
260
261 return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
262 &client->tune_done);
263}
264
265static int smsdvb_get_frontend(struct dvb_frontend *fe,
266 struct dvb_frontend_parameters *fep)
267{
268 struct smsdvb_client_t *client =
269 container_of(fe, struct smsdvb_client_t, frontend);
270
271 sms_debug("");
272
273 /* todo: */
274 memcpy(fep, &client->fe_params,
275 sizeof(struct dvb_frontend_parameters));
276 return 0;
277}
278
279static void smsdvb_release(struct dvb_frontend *fe)
280{
281 /* do nothing */
282}
283
284static struct dvb_frontend_ops smsdvb_fe_ops = {
285 .info = {
286 .name = "Siano Mobile Digital SMS1xxx",
287 .type = FE_OFDM,
288 .frequency_min = 44250000,
289 .frequency_max = 867250000,
290 .frequency_stepsize = 250000,
291 .caps = FE_CAN_INVERSION_AUTO |
292 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
293 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
294 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
295 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
296 FE_CAN_GUARD_INTERVAL_AUTO |
297 FE_CAN_RECOVER |
298 FE_CAN_HIERARCHY_AUTO,
299 },
300
301 .release = smsdvb_release,
302
303 .set_frontend = smsdvb_set_frontend,
304 .get_frontend = smsdvb_get_frontend,
305 .get_tune_settings = smsdvb_get_tune_settings,
306
307 .read_status = smsdvb_read_status,
308 .read_ber = smsdvb_read_ber,
309 .read_signal_strength = smsdvb_read_signal_strength,
310 .read_snr = smsdvb_read_snr,
311};
312
313static int smsdvb_hotplug(struct smscore_device_t *coredev,
314 struct device *device, int arrival)
315{
316 struct smsclient_params_t params;
317 struct smsdvb_client_t *client;
318 int rc;
319
320 /* device removal handled by onremove callback */
321 if (!arrival)
322 return 0;
323
324 if (smscore_get_device_mode(coredev) != 4) {
325 sms_err("SMS Device mode is not set for "
326 "DVB operation.");
327 return 0;
328 }
329
330 client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
331 if (!client) {
332 sms_err("kmalloc() failed");
333 return -ENOMEM;
334 }
335
336 /* register dvb adapter */
337 rc = dvb_register_adapter(&client->adapter,
338 sms_get_board(
339 smscore_get_board_id(coredev))->name,
340 THIS_MODULE, device, adapter_nr);
341 if (rc < 0) {
342 sms_err("dvb_register_adapter() failed %d", rc);
343 goto adapter_error;
344 }
345
346 /* init dvb demux */
347 client->demux.dmx.capabilities = DMX_TS_FILTERING;
348 client->demux.filternum = 32; /* todo: nova ??? */
349 client->demux.feednum = 32;
350 client->demux.start_feed = smsdvb_start_feed;
351 client->demux.stop_feed = smsdvb_stop_feed;
352
353 rc = dvb_dmx_init(&client->demux);
354 if (rc < 0) {
355 sms_err("dvb_dmx_init failed %d", rc);
356 goto dvbdmx_error;
357 }
358
359 /* init dmxdev */
360 client->dmxdev.filternum = 32;
361 client->dmxdev.demux = &client->demux.dmx;
362 client->dmxdev.capabilities = 0;
363
364 rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
365 if (rc < 0) {
366 sms_err("dvb_dmxdev_init failed %d", rc);
367 goto dmxdev_error;
368 }
369
370 /* init and register frontend */
371 memcpy(&client->frontend.ops, &smsdvb_fe_ops,
372 sizeof(struct dvb_frontend_ops));
373
374 rc = dvb_register_frontend(&client->adapter, &client->frontend);
375 if (rc < 0) {
376 sms_err("frontend registration failed %d", rc);
377 goto frontend_error;
378 }
379
380 params.initial_id = 1;
381 params.data_type = MSG_SMS_DVBT_BDA_DATA;
382 params.onresponse_handler = smsdvb_onresponse;
383 params.onremove_handler = smsdvb_onremove;
384 params.context = client;
385
386 rc = smscore_register_client(coredev, &params, &client->smsclient);
387 if (rc < 0) {
388 sms_err("smscore_register_client() failed %d", rc);
389 goto client_error;
390 }
391
392 client->coredev = coredev;
393
394 init_completion(&client->tune_done);
395 init_completion(&client->stat_done);
396
397 kmutex_lock(&g_smsdvb_clientslock);
398
399 list_add(&client->entry, &g_smsdvb_clients);
400
401 kmutex_unlock(&g_smsdvb_clientslock);
402
403 sms_info("success");
404
405 return 0;
406
407client_error:
408 dvb_unregister_frontend(&client->frontend);
409
410frontend_error:
411 dvb_dmxdev_release(&client->dmxdev);
412
413dmxdev_error:
414 dvb_dmx_release(&client->demux);
415
416dvbdmx_error:
417 dvb_unregister_adapter(&client->adapter);
418
419adapter_error:
420 kfree(client);
421 return rc;
422}
423
424int smsdvb_register(void)
425{
426 int rc;
427
428 INIT_LIST_HEAD(&g_smsdvb_clients);
429 kmutex_init(&g_smsdvb_clientslock);
430
431 rc = smscore_register_hotplug(smsdvb_hotplug);
432
433 sms_debug("");
434
435 return rc;
436}
437
438void smsdvb_unregister(void)
439{
440 smscore_unregister_hotplug(smsdvb_hotplug);
441
442 kmutex_lock(&g_smsdvb_clientslock);
443
444 while (!list_empty(&g_smsdvb_clients))
445 smsdvb_unregister_client(
446 (struct smsdvb_client_t *) g_smsdvb_clients.next);
447
448 kmutex_unlock(&g_smsdvb_clientslock);
449}