V4L/DVB (12892): DVB-API: add support for ISDB-T and ISDB-Tsb (version 5.1)
This patch increments the DVB-API to version 5.1 in order to reflect the addition of ISDB-T and ISDB-Tsb on Linux' DVB-API.
Changes in detail:
- added a small document to describe how to use the API to tune to an ISDB-T or ISDB-Tsb channel
- added necessary fields to dtv_frontend_cache
- added a smarter clear-cache function which resets all fields of the dtv_frontend_cache
- added a TRANSMISSION_MODE_4K to fe_transmit_mode_t
Signed-off-by: Olivier Grenie <olgrenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <pboettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index d13ebcb..8260804 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -850,6 +850,49 @@
return 0;
}
+static int dvb_frontend_clear_cache(struct dvb_frontend *fe)
+{
+ int i;
+
+ memset(&(fe->dtv_property_cache), 0,
+ sizeof(struct dtv_frontend_properties));
+
+ fe->dtv_property_cache.state = DTV_CLEAR;
+ fe->dtv_property_cache.delivery_system = SYS_UNDEFINED;
+ fe->dtv_property_cache.inversion = INVERSION_AUTO;
+ fe->dtv_property_cache.fec_inner = FEC_AUTO;
+ fe->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_AUTO;
+ fe->dtv_property_cache.bandwidth_hz = BANDWIDTH_AUTO;
+ fe->dtv_property_cache.guard_interval = GUARD_INTERVAL_AUTO;
+ fe->dtv_property_cache.hierarchy = HIERARCHY_AUTO;
+ fe->dtv_property_cache.symbol_rate = QAM_AUTO;
+ fe->dtv_property_cache.code_rate_HP = FEC_AUTO;
+ fe->dtv_property_cache.code_rate_LP = FEC_AUTO;
+
+ fe->dtv_property_cache.isdbt_partial_reception = -1;
+ fe->dtv_property_cache.isdbt_sb_mode = -1;
+ fe->dtv_property_cache.isdbt_sb_subchannel = -1;
+ fe->dtv_property_cache.isdbt_sb_segment_idx = -1;
+ fe->dtv_property_cache.isdbt_sb_segment_count = -1;
+ fe->dtv_property_cache.isdbt_layer_enabled = 0x7;
+ for (i = 0; i < 3; i++) {
+ fe->dtv_property_cache.layer[i].fec = FEC_AUTO;
+ fe->dtv_property_cache.layer[i].modulation = QAM_AUTO;
+ fe->dtv_property_cache.layer[i].interleaving = -1;
+ fe->dtv_property_cache.layer[i].segment_count = -1;
+ }
+
+ return 0;
+}
+
+#define _DTV_CMD(n, s, b) \
+[n] = { \
+ .name = #n, \
+ .cmd = n, \
+ .set = s,\
+ .buffer = b \
+}
+
static struct dtv_cmds_h dtv_cmds[] = {
[DTV_TUNE] = {
.name = "DTV_TUNE",
@@ -949,6 +992,43 @@
.cmd = DTV_TRANSMISSION_MODE,
.set = 1,
},
+
+ _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0),
+ _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0),
+
+ _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 0, 0),
+ _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 0, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 0, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 0, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 0, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 0, 0),
+
/* Get */
[DTV_DISEQC_SLAVE_REPLY] = {
.name = "DTV_DISEQC_SLAVE_REPLY",
@@ -956,6 +1036,7 @@
.set = 0,
.buffer = 1,
},
+
[DTV_API_VERSION] = {
.name = "DTV_API_VERSION",
.cmd = DTV_API_VERSION,
@@ -1165,14 +1246,21 @@
if(c->delivery_system == SYS_ISDBT) {
/* Fake out a generic DVB-T request so we pass validation in the ioctl */
p->frequency = c->frequency;
- p->inversion = INVERSION_AUTO;
+ p->inversion = c->inversion;
p->u.ofdm.constellation = QAM_AUTO;
p->u.ofdm.code_rate_HP = FEC_AUTO;
p->u.ofdm.code_rate_LP = FEC_AUTO;
- p->u.ofdm.bandwidth = BANDWIDTH_AUTO;
p->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO;
p->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO;
p->u.ofdm.hierarchy_information = HIERARCHY_AUTO;
+ if (c->bandwidth_hz == 8000000)
+ p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
+ else if (c->bandwidth_hz == 7000000)
+ p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
+ else if (c->bandwidth_hz == 6000000)
+ p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
+ else
+ p->u.ofdm.bandwidth = BANDWIDTH_AUTO;
}
}
@@ -1274,6 +1362,59 @@
case DTV_HIERARCHY:
tvp->u.data = fe->dtv_property_cache.hierarchy;
break;
+
+ /* ISDB-T Support here */
+ case DTV_ISDBT_PARTIAL_RECEPTION:
+ tvp->u.data = fe->dtv_property_cache.isdbt_partial_reception;
+ break;
+ case DTV_ISDBT_SOUND_BROADCASTING:
+ tvp->u.data = fe->dtv_property_cache.isdbt_sb_mode;
+ break;
+ case DTV_ISDBT_SB_SUBCHANNEL_ID:
+ tvp->u.data = fe->dtv_property_cache.isdbt_sb_subchannel;
+ break;
+ case DTV_ISDBT_SB_SEGMENT_IDX:
+ tvp->u.data = fe->dtv_property_cache.isdbt_sb_segment_idx;
+ break;
+ case DTV_ISDBT_SB_SEGMENT_COUNT:
+ tvp->u.data = fe->dtv_property_cache.isdbt_sb_segment_count;
+ break;
+ case DTV_ISDBT_LAYERA_FEC:
+ tvp->u.data = fe->dtv_property_cache.layer[0].fec;
+ break;
+ case DTV_ISDBT_LAYERA_MODULATION:
+ tvp->u.data = fe->dtv_property_cache.layer[0].modulation;
+ break;
+ case DTV_ISDBT_LAYERA_SEGMENT_COUNT:
+ tvp->u.data = fe->dtv_property_cache.layer[0].segment_count;
+ break;
+ case DTV_ISDBT_LAYERA_TIME_INTERLEAVING:
+ tvp->u.data = fe->dtv_property_cache.layer[0].interleaving;
+ break;
+ case DTV_ISDBT_LAYERB_FEC:
+ tvp->u.data = fe->dtv_property_cache.layer[1].fec;
+ break;
+ case DTV_ISDBT_LAYERB_MODULATION:
+ tvp->u.data = fe->dtv_property_cache.layer[1].modulation;
+ break;
+ case DTV_ISDBT_LAYERB_SEGMENT_COUNT:
+ tvp->u.data = fe->dtv_property_cache.layer[1].segment_count;
+ break;
+ case DTV_ISDBT_LAYERB_TIME_INTERLEAVING:
+ tvp->u.data = fe->dtv_property_cache.layer[1].interleaving;
+ break;
+ case DTV_ISDBT_LAYERC_FEC:
+ tvp->u.data = fe->dtv_property_cache.layer[2].fec;
+ break;
+ case DTV_ISDBT_LAYERC_MODULATION:
+ tvp->u.data = fe->dtv_property_cache.layer[2].modulation;
+ break;
+ case DTV_ISDBT_LAYERC_SEGMENT_COUNT:
+ tvp->u.data = fe->dtv_property_cache.layer[2].segment_count;
+ break;
+ case DTV_ISDBT_LAYERC_TIME_INTERLEAVING:
+ tvp->u.data = fe->dtv_property_cache.layer[2].interleaving;
+ break;
default:
r = -1;
}
@@ -1302,10 +1443,8 @@
/* Reset a cache of data specific to the frontend here. This does
* not effect hardware.
*/
+ dvb_frontend_clear_cache(fe);
dprintk("%s() Flushing property cache\n", __func__);
- memset(&fe->dtv_property_cache, 0, sizeof(struct dtv_frontend_properties));
- fe->dtv_property_cache.state = tvp->cmd;
- fe->dtv_property_cache.delivery_system = SYS_UNDEFINED;
break;
case DTV_TUNE:
/* interpret the cache of data, build either a traditional frontend
@@ -1371,6 +1510,59 @@
case DTV_HIERARCHY:
fe->dtv_property_cache.hierarchy = tvp->u.data;
break;
+
+ /* ISDB-T Support here */
+ case DTV_ISDBT_PARTIAL_RECEPTION:
+ fe->dtv_property_cache.isdbt_partial_reception = tvp->u.data;
+ break;
+ case DTV_ISDBT_SOUND_BROADCASTING:
+ fe->dtv_property_cache.isdbt_sb_mode = tvp->u.data;
+ break;
+ case DTV_ISDBT_SB_SUBCHANNEL_ID:
+ fe->dtv_property_cache.isdbt_sb_subchannel = tvp->u.data;
+ break;
+ case DTV_ISDBT_SB_SEGMENT_IDX:
+ fe->dtv_property_cache.isdbt_sb_segment_idx = tvp->u.data;
+ break;
+ case DTV_ISDBT_SB_SEGMENT_COUNT:
+ fe->dtv_property_cache.isdbt_sb_segment_count = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERA_FEC:
+ fe->dtv_property_cache.layer[0].fec = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERA_MODULATION:
+ fe->dtv_property_cache.layer[0].modulation = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERA_SEGMENT_COUNT:
+ fe->dtv_property_cache.layer[0].segment_count = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERA_TIME_INTERLEAVING:
+ fe->dtv_property_cache.layer[0].interleaving = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERB_FEC:
+ fe->dtv_property_cache.layer[1].fec = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERB_MODULATION:
+ fe->dtv_property_cache.layer[1].modulation = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERB_SEGMENT_COUNT:
+ fe->dtv_property_cache.layer[1].segment_count = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERB_TIME_INTERLEAVING:
+ fe->dtv_property_cache.layer[1].interleaving = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERC_FEC:
+ fe->dtv_property_cache.layer[2].fec = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERC_MODULATION:
+ fe->dtv_property_cache.layer[2].modulation = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERC_SEGMENT_COUNT:
+ fe->dtv_property_cache.layer[2].segment_count = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERC_TIME_INTERLEAVING:
+ fe->dtv_property_cache.layer[2].interleaving = 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 e176da4..9e46f17 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.h
@@ -341,6 +341,20 @@
fe_rolloff_t rolloff;
fe_delivery_system_t delivery_system;
+
+ /* ISDB-T specifics */
+ u8 isdbt_partial_reception;
+ u8 isdbt_sb_mode;
+ u8 isdbt_sb_subchannel;
+ u32 isdbt_sb_segment_idx;
+ u32 isdbt_sb_segment_count;
+ u8 isdbt_layer_enabled;
+ struct {
+ u8 segment_count;
+ fe_code_rate_t fec;
+ fe_modulation_t modulation;
+ u8 interleaving;
+ } layer[3];
};
struct dvb_frontend {
diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h
index 51c8d2d..25b01c1 100644
--- a/include/linux/dvb/frontend.h
+++ b/include/linux/dvb/frontend.h
@@ -173,7 +173,8 @@
typedef enum fe_transmit_mode {
TRANSMISSION_MODE_2K,
TRANSMISSION_MODE_8K,
- TRANSMISSION_MODE_AUTO
+ TRANSMISSION_MODE_AUTO,
+ TRANSMISSION_MODE_4K
} fe_transmit_mode_t;
typedef enum fe_bandwidth {
@@ -268,15 +269,40 @@
#define DTV_FE_CAPABILITY 16
#define DTV_DELIVERY_SYSTEM 17
-#define DTV_API_VERSION 35
-#define DTV_API_VERSION 35
-#define DTV_CODE_RATE_HP 36
-#define DTV_CODE_RATE_LP 37
-#define DTV_GUARD_INTERVAL 38
-#define DTV_TRANSMISSION_MODE 39
-#define DTV_HIERARCHY 40
+/* ISDB-T and ISDB-Tsb */
+#define DTV_ISDBT_PARTIAL_RECEPTION 18
+#define DTV_ISDBT_SOUND_BROADCASTING 19
-#define DTV_MAX_COMMAND DTV_HIERARCHY
+#define DTV_ISDBT_SB_SUBCHANNEL_ID 20
+#define DTV_ISDBT_SB_SEGMENT_IDX 21
+#define DTV_ISDBT_SB_SEGMENT_COUNT 22
+
+#define DTV_ISDBT_LAYERA_FEC 23
+#define DTV_ISDBT_LAYERA_MODULATION 24
+#define DTV_ISDBT_LAYERA_SEGMENT_COUNT 25
+#define DTV_ISDBT_LAYERA_TIME_INTERLEAVING 26
+
+#define DTV_ISDBT_LAYERB_FEC 27
+#define DTV_ISDBT_LAYERB_MODULATION 28
+#define DTV_ISDBT_LAYERB_SEGMENT_COUNT 29
+#define DTV_ISDBT_LAYERB_TIME_INTERLEAVING 30
+
+#define DTV_ISDBT_LAYERC_FEC 31
+#define DTV_ISDBT_LAYERC_MODULATION 32
+#define DTV_ISDBT_LAYERC_SEGMENT_COUNT 33
+#define DTV_ISDBT_LAYERC_TIME_INTERLEAVING 34
+
+#define DTV_API_VERSION 35
+
+#define DTV_CODE_RATE_HP 36
+#define DTV_CODE_RATE_LP 37
+#define DTV_GUARD_INTERVAL 38
+#define DTV_TRANSMISSION_MODE 39
+#define DTV_HIERARCHY 40
+
+#define DTV_ISDBT_LAYER_ENABLED 41
+
+#define DTV_MAX_COMMAND DTV_ISDBT_LAYER_ENABLED
typedef enum fe_pilot {
PILOT_ON,
diff --git a/include/linux/dvb/version.h b/include/linux/dvb/version.h
index 25b823b..540b058 100644
--- a/include/linux/dvb/version.h
+++ b/include/linux/dvb/version.h
@@ -24,6 +24,6 @@
#define _DVBVERSION_H_
#define DVB_API_VERSION 5
-#define DVB_API_VERSION_MINOR 0
+#define DVB_API_VERSION_MINOR 1
#endif /*_DVBVERSION_H_*/