media: dvb: add DVB-C2 and DVB-S2X parameter values
Extend the DVB frontend parameter enums with additional values specified by the DVB-C2 (ETSI EN 302 769) and DVB-S2X (ETSI EN 302 307-2) standards to be ready for frontend drivers for such receivers. While most parameters will be "read-only" due to being autodetected by the receiver and only being reported back for informational purposes, the addition of SYS_DVBC2 to the delivery systems enum is required, because there are DVB-C2 capable receivers which are not capable of DVB-C/C2 autodetection and thus need this enum value to be explicitly instructed to search for a DVB-C2 signal. As for DVB-S2X, as that is an extension to DVB-S2, the same delivery system enum as for DVB-S2 can be used. Add the additional enum values and comments to the documentation. Link: https://lore.kernel.org/linux-media/trinity-1b7c5a66-85d4-4595-a690-0fde965d49b3-1642146228587@3c-app-gmx-bap69 Signed-off-by: Robert Schlabbach <robert_s@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Robert Schlabbach
Mauro Carvalho Chehab
Родитель
e2a227185d
Коммит
6508a50fe8
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@ -89,16 +89,21 @@ ATSC (version 1) 8-VSB and 16-VSB.
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DMTB 4-QAM, 16-QAM, 32-QAM, 64-QAM and 4-QAM-NR.
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DVB-C Annex A/C 16-QAM, 32-QAM, 64-QAM and 256-QAM.
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DVB-C Annex B 64-QAM.
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DVB-C2 QPSK, 16-QAM, 64-QAM, 256-QAM, 1024-QAM and 4096-QAM.
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DVB-T QPSK, 16-QAM and 64-QAM.
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DVB-T2 QPSK, 16-QAM, 64-QAM and 256-QAM.
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DVB-S No need to set. It supports only QPSK.
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DVB-S2 QPSK, 8-PSK, 16-APSK and 32-APSK.
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DVB-S2X 8-APSK-L, 16-APSK-L, 32-APSK-L, 64-APSK and 64-APSK-L.
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ISDB-T QPSK, DQPSK, 16-QAM and 64-QAM.
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ISDB-S 8-PSK, QPSK and BPSK.
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======================= =======================================================
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.. note::
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As DVB-S2X specifies extensions to the DVB-S2 standard, the same
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delivery system enum value is used (SYS_DVBS2).
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Please notice that some of the above modulation types may not be
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defined currently at the Kernel. The reason is simple: no driver
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needed such definition yet.
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@ -854,9 +859,10 @@ The acceptable values are defined by :c:type:`fe_guard_interval`.
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#. If ``DTV_GUARD_INTERVAL`` is set the ``GUARD_INTERVAL_AUTO`` the
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hardware will try to find the correct guard interval (if capable) and
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will use TMCC to fill in the missing parameters.
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#. Intervals ``GUARD_INTERVAL_1_128``, ``GUARD_INTERVAL_19_128``
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and ``GUARD_INTERVAL_19_256`` are used only for DVB-T2 at
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present.
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#. Interval ``GUARD_INTERVAL_1_64`` is used only for DVB-C2.
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#. Interval ``GUARD_INTERVAL_1_128`` is used for both DVB-C2 and DVB_T2.
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#. Intervals ``GUARD_INTERVAL_19_128`` and ``GUARD_INTERVAL_19_256`` are
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used only for DVB-T2.
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#. Intervals ``GUARD_INTERVAL_PN420``, ``GUARD_INTERVAL_PN595`` and
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``GUARD_INTERVAL_PN945`` are used only for DMTB at the present.
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On such standard, only those intervals and ``GUARD_INTERVAL_AUTO``
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@ -916,14 +922,15 @@ The acceptable values are defined by :c:type:`fe_hierarchy`.
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DTV_STREAM_ID
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=============
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Used on DVB-S2, DVB-T2 and ISDB-S.
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Used on DVB-C2, DVB-S2, DVB-T2 and ISDB-S.
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DVB-S2, DVB-T2 and ISDB-S support the transmission of several streams on
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a single transport stream. This property enables the digital TV driver to
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handle substream filtering, when supported by the hardware. By default,
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substream filtering is disabled.
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DVB-C2, DVB-S2, DVB-T2 and ISDB-S support the transmission of several
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streams on a single transport stream. This property enables the digital
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TV driver to handle substream filtering, when supported by the hardware.
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By default, substream filtering is disabled.
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For DVB-S2 and DVB-T2, the valid substream id range is from 0 to 255.
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For DVB-C2, DVB-S2 and DVB-T2, the valid substream id range is from 0 to
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255.
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For ISDB, the valid substream id range is from 1 to 65535.
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@ -296,6 +296,22 @@ enum fe_spectral_inversion {
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* @FEC_3_5: Forward Error Correction Code 3/5
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* @FEC_9_10: Forward Error Correction Code 9/10
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* @FEC_2_5: Forward Error Correction Code 2/5
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* @FEC_1_3: Forward Error Correction Code 1/3
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* @FEC_1_4: Forward Error Correction Code 1/4
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* @FEC_5_9: Forward Error Correction Code 5/9
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* @FEC_7_9: Forward Error Correction Code 7/9
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* @FEC_8_15: Forward Error Correction Code 8/15
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* @FEC_11_15: Forward Error Correction Code 11/15
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* @FEC_13_18: Forward Error Correction Code 13/18
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* @FEC_9_20: Forward Error Correction Code 9/20
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* @FEC_11_20: Forward Error Correction Code 11/20
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* @FEC_23_36: Forward Error Correction Code 23/36
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* @FEC_25_36: Forward Error Correction Code 25/36
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* @FEC_13_45: Forward Error Correction Code 13/45
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* @FEC_26_45: Forward Error Correction Code 26/45
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* @FEC_28_45: Forward Error Correction Code 28/45
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* @FEC_32_45: Forward Error Correction Code 32/45
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* @FEC_77_90: Forward Error Correction Code 77/90
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*
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* Please note that not all FEC types are supported by a given standard.
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*/
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@ -313,6 +329,22 @@ enum fe_code_rate {
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FEC_3_5,
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FEC_9_10,
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FEC_2_5,
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FEC_1_3,
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FEC_1_4,
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FEC_5_9,
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FEC_7_9,
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FEC_8_15,
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FEC_11_15,
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FEC_13_18,
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FEC_9_20,
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FEC_11_20,
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FEC_23_36,
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FEC_25_36,
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FEC_13_45,
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FEC_26_45,
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FEC_28_45,
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FEC_32_45,
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FEC_77_90,
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};
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/**
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@ -331,6 +363,13 @@ enum fe_code_rate {
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* @APSK_32: 32-APSK modulation
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* @DQPSK: DQPSK modulation
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* @QAM_4_NR: 4-QAM-NR modulation
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* @QAM-1024: 1024-QAM modulation
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* @QAM-4096: 4096-QAM modulation
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* @APSK_8_L: 8APSK-L modulation
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* @APSK_16_L: 16APSK-L modulation
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* @APSK_32_L: 32APSK-L modulation
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* @APSK_64: 64APSK modulation
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* @APSK_64_L: 64APSK-L modulation
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*
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* Please note that not all modulations are supported by a given standard.
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*
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@ -350,6 +389,13 @@ enum fe_modulation {
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APSK_32,
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DQPSK,
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QAM_4_NR,
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QAM_1024,
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QAM_4096,
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APSK_8_L,
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APSK_16_L,
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APSK_32_L,
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APSK_64,
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APSK_64_L,
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};
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/**
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@ -404,6 +450,7 @@ enum fe_transmit_mode {
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* @GUARD_INTERVAL_PN420: PN length 420 (1/4)
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* @GUARD_INTERVAL_PN595: PN length 595 (1/6)
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* @GUARD_INTERVAL_PN945: PN length 945 (1/9)
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* @GUARD_INTERVAL_1_64: Guard interval 1/64
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*
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* Please note that not all guard intervals are supported by a given standard.
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*/
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@ -419,6 +466,7 @@ enum fe_guard_interval {
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GUARD_INTERVAL_PN420,
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GUARD_INTERVAL_PN595,
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GUARD_INTERVAL_PN945,
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GUARD_INTERVAL_1_64,
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};
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/**
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@ -571,6 +619,9 @@ enum fe_pilot {
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* @ROLLOFF_20: Roloff factor: α=20%
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* @ROLLOFF_25: Roloff factor: α=25%
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* @ROLLOFF_AUTO: Auto-detect the roloff factor.
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* @ROLLOFF_15: Rolloff factor: α=15%
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* @ROLLOFF_10: Rolloff factor: α=10%
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* @ROLLOFF_5: Rolloff factor: α=5%
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*
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* .. note:
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*
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@ -581,6 +632,9 @@ enum fe_rolloff {
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ROLLOFF_20,
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ROLLOFF_25,
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ROLLOFF_AUTO,
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ROLLOFF_15,
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ROLLOFF_10,
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ROLLOFF_5,
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};
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/**
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@ -594,6 +648,8 @@ enum fe_rolloff {
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* Cable TV: DVB-C following ITU-T J.83 Annex B spec (ClearQAM)
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* @SYS_DVBC_ANNEX_C:
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* Cable TV: DVB-C following ITU-T J.83 Annex C spec
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* @SYS_DVBC2:
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* Cable TV: DVB-C2
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* @SYS_ISDBC:
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* Cable TV: ISDB-C (no drivers yet)
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* @SYS_DVBT:
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@ -611,7 +667,7 @@ enum fe_rolloff {
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* @SYS_DVBS:
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* Satellite TV: DVB-S
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* @SYS_DVBS2:
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* Satellite TV: DVB-S2
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* Satellite TV: DVB-S2 and DVB-S2X
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* @SYS_TURBO:
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* Satellite TV: DVB-S Turbo
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* @SYS_ISDBS:
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@ -645,6 +701,7 @@ enum fe_delivery_system {
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SYS_DVBT2,
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SYS_TURBO,
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SYS_DVBC_ANNEX_C,
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SYS_DVBC2,
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};
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/* backward compatibility definitions for delivery systems */
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