V4L/DVB (12997): Add the DTV_ISDB_TS_ID property for ISDB_S

In ISDB-S, time-devision duplex is used to multiplexing several waves
in the same frequency. Each wave is identified by its own transport
stream ID, or TS ID. We need to provide some way to specify this ID
from user applications to handle ISDB-S frontends.

This code has been tested with the Earthsoft PT1 driver.

[mchehab@infradead.org: Fix merge conflicts with isdbt and rename the new parameter to DTV_ISDBS_TS_ID]
Signed-off-by: HIRANO Takahito <hiranotaka@zng.info>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 14 insertions, 1 deletions

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 3c9482660eac..ddf639ed2fd8 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1031,6 +1031,8 @@ static struct dtv_cmds_h dtv_cmds[] = {
         _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 0, 0),
         _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 0, 0),
 
+        _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0),
+
         /* Get */
         [DTV_DISEQC_SLAVE_REPLY] = {
                 .name   = "DTV_DISEQC_SLAVE_REPLY",
@@ -1420,6 +1422,9 @@ static int dtv_property_process_get(struct dvb_frontend *fe,
         case DTV_ISDBT_LAYERC_TIME_INTERLEAVING:
                 tvp->u.data = fe->dtv_property_cache.layer[2].interleaving;
                 break;
+        case DTV_ISDBS_TS_ID:
+                tvp->u.data = fe->dtv_property_cache.isdbs_ts_id;
+                break;
         default:
                 r = -1;
         }
@@ -1571,6 +1576,9 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
         case DTV_ISDBT_LAYERC_TIME_INTERLEAVING:
                 fe->dtv_property_cache.layer[2].interleaving = tvp->u.data;
                 break;
+        case DTV_ISDBS_TS_ID:
+                fe->dtv_property_cache.isdbs_ts_id = tvp->u.data;
+                break;
         default:
                 r = -1;
         }
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h
index 9e46f1772c54..810f07d63246 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.h
@@ -355,6 +355,9 @@ struct dtv_frontend_properties {
             fe_modulation_t     modulation;
             u8                  interleaving;
         } layer[3];
+
+        /* ISDB-T specifics */
+        u32                     isdbs_ts_id;
 };
 
 struct dvb_frontend {
diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h
index 25b01c14727b..b6cb5425cde3 100644
--- a/include/linux/dvb/frontend.h
+++ b/include/linux/dvb/frontend.h
@@ -302,7 +302,9 @@ struct dvb_frontend_event {
 
 #define DTV_ISDBT_LAYER_ENABLED 41
 
-#define DTV_MAX_COMMAND                         DTV_ISDBT_LAYER_ENABLED
+#define DTV_ISDBS_TS_ID         42
+
+#define DTV_MAX_COMMAND                         DTV_ISDBS_TS_ID
 
 typedef enum fe_pilot {
         PILOT_ON,