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path: root/drivers/media/dvb/siano/smsdvb.c
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Diffstat (limited to 'drivers/media/dvb/siano/smsdvb.c')
-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 00000000000..6f9c1856386
--- /dev/null
+++ b/drivers/media/dvb/siano/smsdvb.c
@@ -0,0 +1,449 @@
+/*
+ * Driver for the Siano SMS1xxx USB dongle
+ *
+ * author: Anatoly Greenblat
+ *
+ * Copyright (c), 2005-2008 Siano Mobile Silicon, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation;
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ *
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include "smscoreapi.h"
+#include "sms-cards.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+struct list_head g_smsdvb_clients;
+struct mutex g_smsdvb_clientslock;
+
+static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
+{
+ struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
+ struct SmsMsgHdr_ST *phdr =
+ (struct SmsMsgHdr_ST *)(((u8 *) cb->p) + cb->offset);
+
+ switch (phdr->msgType) {
+ case MSG_SMS_DVBT_BDA_DATA:
+ dvb_dmx_swfilter(&client->demux, (u8 *)(phdr + 1),
+ cb->size - sizeof(struct SmsMsgHdr_ST));
+ break;
+
+ case MSG_SMS_RF_TUNE_RES:
+ complete(&client->tune_done);
+ break;
+
+ case MSG_SMS_GET_STATISTICS_RES:
+ {
+ struct SmsMsgStatisticsInfo_ST *p =
+ (struct SmsMsgStatisticsInfo_ST *)(phdr + 1);
+
+ if (p->Stat.IsDemodLocked) {
+ client->fe_status = FE_HAS_SIGNAL |
+ FE_HAS_CARRIER |
+ FE_HAS_VITERBI |
+ FE_HAS_SYNC |
+ FE_HAS_LOCK;
+
+ client->fe_snr = p->Stat.SNR;
+ client->fe_ber = p->Stat.BER;
+
+ if (p->Stat.InBandPwr < -95)
+ client->fe_signal_strength = 0;
+ else if (p->Stat.InBandPwr > -29)
+ client->fe_signal_strength = 100;
+ else
+ client->fe_signal_strength =
+ (p->Stat.InBandPwr + 95) * 3 / 2;
+ } else {
+ client->fe_status = 0;
+ client->fe_snr =
+ client->fe_ber =
+ client->fe_signal_strength = 0;
+ }
+
+ complete(&client->stat_done);
+ break;
+ } }
+
+ smscore_putbuffer(client->coredev, cb);
+
+ return 0;
+}
+
+static void smsdvb_unregister_client(struct smsdvb_client_t *client)
+{
+ /* must be called under clientslock */
+
+ list_del(&client->entry);
+
+ smscore_unregister_client(client->smsclient);
+ dvb_unregister_frontend(&client->frontend);
+ dvb_dmxdev_release(&client->dmxdev);
+ dvb_dmx_release(&client->demux);
+ dvb_unregister_adapter(&client->adapter);
+ kfree(client);
+}
+
+static void smsdvb_onremove(void *context)
+{
+ kmutex_lock(&g_smsdvb_clientslock);
+
+ smsdvb_unregister_client((struct smsdvb_client_t *) context);
+
+ kmutex_unlock(&g_smsdvb_clientslock);
+}
+
+static int smsdvb_start_feed(struct dvb_demux_feed *feed)
+{
+ struct smsdvb_client_t *client =
+ container_of(feed->demux, struct smsdvb_client_t, demux);
+ struct SmsMsgData_ST PidMsg;
+
+ sms_debug("add pid %d(%x)",
+ feed->pid, feed->pid);
+
+ PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
+ PidMsg.xMsgHeader.msgDstId = HIF_TASK;
+ PidMsg.xMsgHeader.msgFlags = 0;
+ PidMsg.xMsgHeader.msgType = MSG_SMS_ADD_PID_FILTER_REQ;
+ PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
+ PidMsg.msgData[0] = feed->pid;
+
+ return smsclient_sendrequest(client->smsclient,
+ &PidMsg, sizeof(PidMsg));
+}
+
+static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
+{
+ struct smsdvb_client_t *client =
+ container_of(feed->demux, struct smsdvb_client_t, demux);
+ struct SmsMsgData_ST PidMsg;
+
+ sms_debug("remove pid %d(%x)",
+ feed->pid, feed->pid);
+
+ PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
+ PidMsg.xMsgHeader.msgDstId = HIF_TASK;
+ PidMsg.xMsgHeader.msgFlags = 0;
+ PidMsg.xMsgHeader.msgType = MSG_SMS_REMOVE_PID_FILTER_REQ;
+ PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
+ PidMsg.msgData[0] = feed->pid;
+
+ return smsclient_sendrequest(client->smsclient,
+ &PidMsg, sizeof(PidMsg));
+}
+
+static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
+ void *buffer, size_t size,
+ struct completion *completion)
+{
+ int rc = smsclient_sendrequest(client->smsclient, buffer, size);
+ if (rc < 0)
+ return rc;
+
+ return wait_for_completion_timeout(completion,
+ msecs_to_jiffies(2000)) ?
+ 0 : -ETIME;
+}
+
+static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
+{
+ struct SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ,
+ DVBT_BDA_CONTROL_MSG_ID,
+ HIF_TASK, sizeof(struct SmsMsgHdr_ST), 0 };
+ return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
+ &client->stat_done);
+}
+
+static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
+{
+ struct smsdvb_client_t *client =
+ container_of(fe, struct smsdvb_client_t, frontend);
+ int rc = smsdvb_send_statistics_request(client);
+
+ if (!rc)
+ *stat = client->fe_status;
+
+ return rc;
+}
+
+static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+ struct smsdvb_client_t *client =
+ container_of(fe, struct smsdvb_client_t, frontend);
+ int rc = smsdvb_send_statistics_request(client);
+
+ if (!rc)
+ *ber = client->fe_ber;
+
+ return rc;
+}
+
+static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
+{
+ struct smsdvb_client_t *client =
+ container_of(fe, struct smsdvb_client_t, frontend);
+ int rc = smsdvb_send_statistics_request(client);
+
+ if (!rc)
+ *strength = client->fe_signal_strength;
+
+ return rc;
+}
+
+static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+ struct smsdvb_client_t *client =
+ container_of(fe, struct smsdvb_client_t, frontend);
+ int rc = smsdvb_send_statistics_request(client);
+
+ if (!rc)
+ *snr = client->fe_snr;
+
+ return rc;
+}
+
+static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
+ struct dvb_frontend_tune_settings *tune)
+{
+ sms_debug("");
+
+ tune->min_delay_ms = 400;
+ tune->step_size = 250000;
+ tune->max_drift = 0;
+ return 0;
+}
+
+static int smsdvb_set_frontend(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *fep)
+{
+ struct smsdvb_client_t *client =
+ container_of(fe, struct smsdvb_client_t, frontend);
+
+ struct {
+ struct SmsMsgHdr_ST Msg;
+ u32 Data[3];
+ } Msg;
+
+ Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
+ Msg.Msg.msgDstId = HIF_TASK;
+ Msg.Msg.msgFlags = 0;
+ Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ;
+ Msg.Msg.msgLength = sizeof(Msg);
+ Msg.Data[0] = fep->frequency;
+ Msg.Data[2] = 12000000;
+
+ sms_debug("freq %d band %d",
+ fep->frequency, fep->u.ofdm.bandwidth);
+
+ switch (fep->u.ofdm.bandwidth) {
+ case BANDWIDTH_8_MHZ: Msg.Data[1] = BW_8_MHZ; break;
+ case BANDWIDTH_7_MHZ: Msg.Data[1] = BW_7_MHZ; break;
+ case BANDWIDTH_6_MHZ: Msg.Data[1] = BW_6_MHZ; break;
+ case BANDWIDTH_AUTO: return -EOPNOTSUPP;
+ default: return -EINVAL;
+ }
+
+ return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
+ &client->tune_done);
+}
+
+static int smsdvb_get_frontend(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *fep)
+{
+ struct smsdvb_client_t *client =
+ container_of(fe, struct smsdvb_client_t, frontend);
+
+ sms_debug("");
+
+ /* todo: */
+ memcpy(fep, &client->fe_params,
+ sizeof(struct dvb_frontend_parameters));
+ return 0;
+}
+
+static void smsdvb_release(struct dvb_frontend *fe)
+{
+ /* do nothing */
+}
+
+static struct dvb_frontend_ops smsdvb_fe_ops = {
+ .info = {
+ .name = "Siano Mobile Digital SMS1xxx",
+ .type = FE_OFDM,
+ .frequency_min = 44250000,
+ .frequency_max = 867250000,
+ .frequency_stepsize = 250000,
+ .caps = FE_CAN_INVERSION_AUTO |
+ FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+ FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+ FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
+ FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO |
+ FE_CAN_RECOVER |
+ FE_CAN_HIERARCHY_AUTO,
+ },
+
+ .release = smsdvb_release,
+
+ .set_frontend = smsdvb_set_frontend,
+ .get_frontend = smsdvb_get_frontend,
+ .get_tune_settings = smsdvb_get_tune_settings,
+
+ .read_status = smsdvb_read_status,
+ .read_ber = smsdvb_read_ber,
+ .read_signal_strength = smsdvb_read_signal_strength,
+ .read_snr = smsdvb_read_snr,
+};
+
+static int smsdvb_hotplug(struct smscore_device_t *coredev,
+ struct device *device, int arrival)
+{
+ struct smsclient_params_t params;
+ struct smsdvb_client_t *client;
+ int rc;
+
+ /* device removal handled by onremove callback */
+ if (!arrival)
+ return 0;
+
+ if (smscore_get_device_mode(coredev) != 4) {
+ sms_err("SMS Device mode is not set for "
+ "DVB operation.");
+ return 0;
+ }
+
+ client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
+ if (!client) {
+ sms_err("kmalloc() failed");
+ return -ENOMEM;
+ }
+
+ /* register dvb adapter */
+ rc = dvb_register_adapter(&client->adapter,
+ sms_get_board(
+ smscore_get_board_id(coredev))->name,
+ THIS_MODULE, device, adapter_nr);
+ if (rc < 0) {
+ sms_err("dvb_register_adapter() failed %d", rc);
+ goto adapter_error;
+ }
+
+ /* init dvb demux */
+ client->demux.dmx.capabilities = DMX_TS_FILTERING;
+ client->demux.filternum = 32; /* todo: nova ??? */
+ client->demux.feednum = 32;
+ client->demux.start_feed = smsdvb_start_feed;
+ client->demux.stop_feed = smsdvb_stop_feed;
+
+ rc = dvb_dmx_init(&client->demux);
+ if (rc < 0) {
+ sms_err("dvb_dmx_init failed %d", rc);
+ goto dvbdmx_error;
+ }
+
+ /* init dmxdev */
+ client->dmxdev.filternum = 32;
+ client->dmxdev.demux = &client->demux.dmx;
+ client->dmxdev.capabilities = 0;
+
+ rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
+ if (rc < 0) {
+ sms_err("dvb_dmxdev_init failed %d", rc);
+ goto dmxdev_error;
+ }
+
+ /* init and register frontend */
+ memcpy(&client->frontend.ops, &smsdvb_fe_ops,
+ sizeof(struct dvb_frontend_ops));
+
+ rc = dvb_register_frontend(&client->adapter, &client->frontend);
+ if (rc < 0) {
+ sms_err("frontend registration failed %d", rc);
+ goto frontend_error;
+ }
+
+ params.initial_id = 1;
+ params.data_type = MSG_SMS_DVBT_BDA_DATA;
+ params.onresponse_handler = smsdvb_onresponse;
+ params.onremove_handler = smsdvb_onremove;
+ params.context = client;
+
+ rc = smscore_register_client(coredev, &params, &client->smsclient);
+ if (rc < 0) {
+ sms_err("smscore_register_client() failed %d", rc);
+ goto client_error;
+ }
+
+ client->coredev = coredev;
+
+ init_completion(&client->tune_done);
+ init_completion(&client->stat_done);
+
+ kmutex_lock(&g_smsdvb_clientslock);
+
+ list_add(&client->entry, &g_smsdvb_clients);
+
+ kmutex_unlock(&g_smsdvb_clientslock);
+
+ sms_info("success");
+
+ return 0;
+
+client_error:
+ dvb_unregister_frontend(&client->frontend);
+
+frontend_error:
+ dvb_dmxdev_release(&client->dmxdev);
+
+dmxdev_error:
+ dvb_dmx_release(&client->demux);
+
+dvbdmx_error:
+ dvb_unregister_adapter(&client->adapter);
+
+adapter_error:
+ kfree(client);
+ return rc;
+}
+
+int smsdvb_register(void)
+{
+ int rc;
+
+ INIT_LIST_HEAD(&g_smsdvb_clients);
+ kmutex_init(&g_smsdvb_clientslock);
+
+ rc = smscore_register_hotplug(smsdvb_hotplug);
+
+ sms_debug("");
+
+ return rc;
+}
+
+void smsdvb_unregister(void)
+{
+ smscore_unregister_hotplug(smsdvb_hotplug);
+
+ kmutex_lock(&g_smsdvb_clientslock);
+
+ while (!list_empty(&g_smsdvb_clients))
+ smsdvb_unregister_client(
+ (struct smsdvb_client_t *) g_smsdvb_clients.next);
+
+ kmutex_unlock(&g_smsdvb_clientslock);
+}