From patchwork Wed Jun 8 01:45:33 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 860402 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.4) with ESMTP id p581g6RT015583 for ; Wed, 8 Jun 2011 02:08:30 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754321Ab1FHBqA (ORCPT ); Tue, 7 Jun 2011 21:46:00 -0400 Received: from mx1.redhat.com ([209.132.183.28]:28302 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754217Ab1FHBp7 (ORCPT ); Tue, 7 Jun 2011 21:45:59 -0400 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p581jwKH006725 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 7 Jun 2011 21:45:58 -0400 Received: from pedra (vpn-236-210.phx2.redhat.com [10.3.236.210]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id p581jnc7007506 for ; Tue, 7 Jun 2011 21:45:58 -0400 Date: Tue, 7 Jun 2011 22:45:33 -0300 From: Mauro Carvalho Chehab Cc: Linux Media Mailing List Subject: [PATCH 06/15] [media] DocBook/frontend.xml: Better describe the frontend parameters Message-ID: <20110607224533.0faaa965@pedra> In-Reply-To: References: Mime-Version: 1.0 X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12 To: unlisted-recipients:; (no To-header on input) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Wed, 08 Jun 2011 02:08:31 +0000 (UTC) Update the DVB parameter structs to reflect VSB modulation and improve a few descriptions. Signed-off-by: Mauro Carvalho Chehab diff --git a/Documentation/DocBook/media/dvb/frontend.xml b/Documentation/DocBook/media/dvb/frontend.xml index a925b45..b1f0123 100644 --- a/Documentation/DocBook/media/dvb/frontend.xml +++ b/Documentation/DocBook/media/dvb/frontend.xml @@ -262,6 +262,15 @@ OFDM frontends the frequency specifies the absolute frequen }; +
+VSB parameters +DVB-T frontends are supported by the dvb_vsb_parameters structure: + +struct dvb_vsb_parameters { + fe_modulation_t modulation; /⋆ modulation type (see above) ⋆/ +}; + +
OFDM parameters DVB-T frontends are supported by the dvb_ofdm_parameters structure: @@ -277,15 +286,6 @@ OFDM frontends the frequency specifies the absolute frequen };
-
-VSB parameters -DVB-T frontends are supported by the dvb_vsb_parameters structure: - -struct dvb_vsb_parameters { - fe_modulation_t modulation; /⋆ modulation type (see above) ⋆/ -}; - -
frontend spectral inversion The Inversion field can take one of these values: @@ -304,7 +304,9 @@ itself.
frontend code rate -The possible values for the FEC_inner field are +The possible values for the fec_inner field used on +struct dvb_qpsk_parameters and +struct dvb_qam_parameters are: typedef enum fe_code_rate { @@ -327,9 +329,12 @@ detection.
-frontend modulation type for QAM and OFDM -For cable and terrestrial frontends (QAM and OFDM) one also has to specify the quadrature -modulation mode which can be one of the following: +frontend modulation type for QAM, OFDM and VSB +For cable and terrestrial frontends, e. g. for +struct dvb_qpsk_parameters, +struct dvb_qam_parameters and +struct dvb_qam_parameters, +it needs to specify the quadrature modulation mode which can be one of the following: typedef enum fe_modulation { @@ -352,7 +357,7 @@ modulation mode which can be one of the following: Finally, there are several more parameters for OFDM:
-Number of carriers per channel, on OFTM modulation +Number of carriers per channel typedef enum fe_transmit_mode { TRANSMISSION_MODE_2K,