Em 08-05-2011 12:51, Steve Kerrison escreveu:
> A few new capabilities added to frontend.h for DVB-T2. Added these
> to the documentation plus some notes explaining that they are
> used by the T2 delivery system.
>
> Signed-off-by: Steve Kerrison <[email protected]>
> ---
> Documentation/DocBook/dvb/dvbproperty.xml | 21 ++++++++++++++++++---
> Documentation/DocBook/dvb/frontend.h.xml | 20 ++++++++++++++++----
> 2 files changed, 34 insertions(+), 7 deletions(-)
>
> diff --git a/Documentation/DocBook/dvb/dvbproperty.xml
> b/Documentation/DocBook/dvb/dvbproperty.xml
> index 05ce603..afe204c 100644
> --- a/Documentation/DocBook/dvb/dvbproperty.xml
> +++ b/Documentation/DocBook/dvb/dvbproperty.xml
> @@ -217,9 +217,12 @@ get/set up to 64 properties. The actual meaning of each
> property is described on
> <para>Bandwidth for the channel, in HZ.</para>
>
> <para>Possible values:
> + <constant>1712000</constant>,
> + <constant>5000000</constant>,
> <constant>6000000</constant>,
> <constant>7000000</constant>,
> - <constant>8000000</constant>.
> + <constant>8000000</constant>,
> + <constant>10000000</constant>.
> </para>
>
> <para>Notes:</para>
> @@ -231,6 +234,8 @@ get/set up to 64 properties. The actual meaning of each
> property is described on
> <para>4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily
> derived from
> other parameters (DTV_ISDBT_SB_SEGMENT_IDX,
> DTV_ISDBT_SB_SEGMENT_COUNT).</para>
> + <para>5) DVB-T supports 6, 7 and 8MHz.</para>
> + <para>6) In addition, DVB-T2 supports 1.172, 5 and 10MHz.</para>
> </section>
>
> <section id="DTV_DELIVERY_SYSTEM">
> @@ -257,6 +262,7 @@ typedef enum fe_delivery_system {
> SYS_DMBTH,
> SYS_CMMB,
> SYS_DAB,
> + SYS_DVBT2,
> } fe_delivery_system_t;
> </programlisting>
>
> @@ -273,7 +279,10 @@ typedef enum fe_transmit_mode {
> TRANSMISSION_MODE_2K,
> TRANSMISSION_MODE_8K,
> TRANSMISSION_MODE_AUTO,
> - TRANSMISSION_MODE_4K
> + TRANSMISSION_MODE_4K,
> + TRANSMISSION_MODE_1K,
> + TRANSMISSION_MODE_16K,
> + TRANSMISSION_MODE_32K,
> } fe_transmit_mode_t;
> </programlisting>
>
> @@ -284,6 +293,8 @@ typedef enum fe_transmit_mode {
> <para>2) If <constant>DTV_TRANSMISSION_MODE</constant> is set
> the <constant>TRANSMISSION_MODE_AUTO</constant> the
> hardware will try to find the correct FFT-size (if
> capable) and will
> use TMCC to fill in the missing parameters.</para>
> + <para>3) DVB-T specifies 2K and 8K as valid sizes.</para>
> + <para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para>
It makes sense to add here that ISDB-T specifies 2K, 4K and 8K.
(yeah, sorry, it is my fault that I didn't notice it before ;) )
> </section>
>
> <section id="DTV_GUARD_INTERVAL">
> @@ -296,7 +307,10 @@ typedef enum fe_guard_interval {
> GUARD_INTERVAL_1_16,
> GUARD_INTERVAL_1_8,
> GUARD_INTERVAL_1_4,
> - GUARD_INTERVAL_AUTO
> + GUARD_INTERVAL_AUTO,
> + GUARD_INTERVAL_1_128,
> + GUARD_INTERVAL_19_128,
> + GUARD_INTERVAL_19_256,
> } fe_guard_interval_t;
> </programlisting>
>
> @@ -304,6 +318,7 @@ typedef enum fe_guard_interval {
> <para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the
> <constant>GUARD_INTERVAL_AUTO</constant> the hardware will
> try to find the correct guard interval (if capable) and
> will use TMCC to fill
> in the missing parameters.</para>
> + <para>2) Intervals 1/128, 19/128 and 19/256 are used only for
> DVB-T2 at present</para>
> </section>
> </section>
>
> diff --git a/Documentation/DocBook/dvb/frontend.h.xml
> b/Documentation/DocBook/dvb/frontend.h.xml
> index d08e0d4..d792f78 100644
> --- a/Documentation/DocBook/dvb/frontend.h.xml
> +++ b/Documentation/DocBook/dvb/frontend.h.xml
> @@ -176,14 +176,20 @@ typedef enum fe_transmit_mode {
> TRANSMISSION_MODE_2K,
> TRANSMISSION_MODE_8K,
> TRANSMISSION_MODE_AUTO,
> - TRANSMISSION_MODE_4K
> + TRANSMISSION_MODE_4K,
> + TRANSMISSION_MODE_1K,
> + TRANSMISSION_MODE_16K,
> + TRANSMISSION_MODE_32K,
> } fe_transmit_mode_t;
>
> typedef enum fe_bandwidth {
> BANDWIDTH_8_MHZ,
> BANDWIDTH_7_MHZ,
> BANDWIDTH_6_MHZ,
> - BANDWIDTH_AUTO
> + BANDWIDTH_AUTO,
> + BANDWIDTH_5_MHZ,
> + BANDWIDTH_10_MHZ,
> + BANDWIDTH_1_712_MHZ,
> } fe_bandwidth_t;
>
>
> @@ -192,7 +198,10 @@ typedef enum fe_guard_interval {
> GUARD_INTERVAL_1_16,
> GUARD_INTERVAL_1_8,
> GUARD_INTERVAL_1_4,
> - GUARD_INTERVAL_AUTO
> + GUARD_INTERVAL_AUTO,
> + GUARD_INTERVAL_1_128,
> + GUARD_INTERVAL_19_128,
> + GUARD_INTERVAL_19_256,
> } fe_guard_interval_t;
>
>
> @@ -306,7 +315,9 @@ struct dvb_frontend_event {
>
> #define DTV_ISDBS_TS_ID 42
>
> -#define DTV_MAX_COMMAND DTV_ISDBS_TS_ID
> +#define DTV_DVBT2_PLP_ID 43
> +
Please document the PLP_ID as well. Just like ISDB-T, the best seems to
create a section with DVB-T2 specific parameters, and add this one there,
explaining its meaning.
> +#define DTV_MAX_COMMAND DTV_DVBT2_PLP_ID
>
> typedef enum fe_pilot {
> PILOT_ON,
> @@ -338,6 +349,7 @@ typedef enum fe_delivery_system {
> SYS_DMBTH,
> SYS_CMMB,
> SYS_DAB,
> + SYS_DVBT2,
> } fe_delivery_system_t;
>
> struct dtv_cmds_h {
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