V4L/DVB (13839): smsdvb: add ISDB-T as DVB-T tuning support hack

Activate ISDB-T mode using module option default_mode=6.

hack: use 4 lower bits in frequency for segment number

[mchehab@redhat.com: fix merge conflicts and CodingStyle]
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/dvb/siano/smsdvb.c b/drivers/media/dvb/siano/smsdvb.c
index 68bf9fb..ca952eb 100644 (file)
--- a/drivers/media/dvb/siano/smsdvb.c
+++ b/drivers/media/dvb/siano/smsdvb.c
@@ -134,6 +134,7 @@ static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
                break;
 
        case MSG_SMS_RF_TUNE_RES:
+       case MSG_SMS_ISDBT_TUNE_RES:
                complete(&client->tune_done);
                break;
 
@@ -413,8 +414,8 @@ static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
        return 0;
 }
 
-static int smsdvb_set_frontend(struct dvb_frontend *fe,
-                              struct dvb_frontend_parameters *fep)
+static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe,
+                                   struct dvb_frontend_parameters *fep)
 {
        struct smsdvb_client_t *client =
                container_of(fe, struct smsdvb_client_t, frontend);
@@ -470,6 +471,75 @@ static int smsdvb_set_frontend(struct dvb_frontend *fe,
                                           &client->tune_done);
 }
 
+static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe,
+                                    struct dvb_frontend_parameters *fep,
+                                    u32 SegmentNumber)
+{
+       struct smsdvb_client_t *client =
+               container_of(fe, struct smsdvb_client_t, frontend);
+
+       struct {
+               struct SmsMsgHdr_ST     Msg;
+               u32             Data[4];
+       } Msg;
+
+       Msg.Msg.msgSrcId  = DVBT_BDA_CONTROL_MSG_ID;
+       Msg.Msg.msgDstId  = HIF_TASK;
+       Msg.Msg.msgFlags  = 0;
+       Msg.Msg.msgType   = MSG_SMS_ISDBT_TUNE_REQ;
+       Msg.Msg.msgLength = sizeof(Msg);
+       Msg.Data[0] = fep->frequency;
+       Msg.Data[2] = 12000000;
+       Msg.Data[3] = SegmentNumber;
+
+       sms_debug("freq %d band %d seg %d\n",
+                 fep->frequency, fep->u.ofdm.bandwidth, SegmentNumber);
+
+       switch (fep->u.ofdm.bandwidth) {
+       case BANDWIDTH_8_MHZ:
+               Msg.Data[1] = BW_ISDBT_3SEG;
+               break;
+       case BANDWIDTH_7_MHZ:
+               Msg.Data[1] = BW_ISDBT_3SEG;
+               break;
+       case BANDWIDTH_6_MHZ:
+               Msg.Data[1] = BW_ISDBT_1SEG;
+               break;
+       case BANDWIDTH_AUTO:
+               return -EOPNOTSUPP;
+       default:
+               return -EINVAL;
+       }
+
+       return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
+                                          &client->tune_done);
+}
+
+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 smscore_device_t *coredev = client->coredev;
+
+       switch (smscore_get_device_mode(coredev)) {
+       case DEVICE_MODE_DVBT:
+       case DEVICE_MODE_DVBT_BDA:
+               return smsdvb_dvbt_set_frontend(fe, fep);
+       case DEVICE_MODE_ISDBT:
+       case DEVICE_MODE_ISDBT_BDA:
+       {
+               u32 segmentnum;
+               /* XXX: hack - use 4 lower bits in frequency for segment num */
+               segmentnum = fep->frequency & 0x0000000f;
+               fep->frequency &= ~0x0000000f;
+               return smsdvb_isdbt_set_frontend(fe, fep, segmentnum);
+       }
+       default:
+               return -EINVAL;
+       }
+}
+
 static int smsdvb_get_frontend(struct dvb_frontend *fe,
                               struct dvb_frontend_parameters *fep)
 {
@@ -557,13 +627,6 @@ static int smsdvb_hotplug(struct smscore_device_t *coredev,
        /* device removal handled by onremove callback */
        if (!arrival)
                return 0;
-
-       if (smscore_get_device_mode(coredev) != DEVICE_MODE_DVBT_BDA) {
-               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");