From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mga01.intel.com ([192.55.52.88]:35520 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756503AbcAYMlb (ORCPT ); Mon, 25 Jan 2016 07:41:31 -0500 From: Sakari Ailus To: linux-media@vger.kernel.org Cc: laurent.pinchart@ideasonboard.com, hverkuil@xs4all.nl Subject: [PATCH v3 4/4] media-ctl: List supported media bus formats Date: Mon, 25 Jan 2016 14:39:45 +0200 Message-Id: <1453725585-4165-5-git-send-email-sakari.ailus@linux.intel.com> In-Reply-To: <1453725585-4165-1-git-send-email-sakari.ailus@linux.intel.com> References: <1453725585-4165-1-git-send-email-sakari.ailus@linux.intel.com> Sender: linux-media-owner@vger.kernel.org List-ID: Add a new topic option for -h to allow listing supported media bus codes in conversion functions. This is useful in figuring out which media bus codes are actually supported by the library. The numeric values of the codes are listed as well. Signed-off-by: Sakari Ailus --- utils/media-ctl/options.c | 42 ++++++++++++++++++++++++++++++++++++++---- 1 file changed, 38 insertions(+), 4 deletions(-) diff --git a/utils/media-ctl/options.c b/utils/media-ctl/options.c index 0afc9c2..c67052d 100644 --- a/utils/media-ctl/options.c +++ b/utils/media-ctl/options.c @@ -22,7 +22,9 @@ #include #include #include +#include #include +#include #include @@ -45,7 +47,8 @@ static void usage(const char *argv0) printf("-V, --set-v4l2 v4l2 Comma-separated list of formats to setup\n"); printf(" --get-v4l2 pad Print the active format on a given pad\n"); printf(" --set-dv pad Configure DV timings on a given pad\n"); - printf("-h, --help Show verbose help and exit\n"); + printf("-h, --help[=topic] Show verbose help and exit\n"); + printf(" topics: mbus-fmt: List supported media bus pixel codes\n"); printf("-i, --interactive Modify links interactively\n"); printf("-l, --links links Comma-separated list of link descriptors to setup\n"); printf("-p, --print-topology Print the device topology\n"); @@ -100,7 +103,7 @@ static struct option opts[] = { {"get-format", 1, 0, OPT_GET_FORMAT}, {"get-v4l2", 1, 0, OPT_GET_FORMAT}, {"set-dv", 1, 0, OPT_SET_DV}, - {"help", 0, 0, 'h'}, + {"help", 2, 0, 'h'}, {"interactive", 0, 0, 'i'}, {"links", 1, 0, 'l'}, {"print-dot", 0, 0, OPT_PRINT_DOT}, @@ -110,6 +113,27 @@ static struct option opts[] = { { }, }; +void list_mbus_formats(void) +{ + unsigned int i; + + printf("Supported media bus pixel codes\n"); + + for (i = 0; ; i++) { + unsigned int code = v4l2_subdev_pixelcode_list()[i]; + const char *str = v4l2_subdev_pixelcode_to_string(code); + int spaces = 30 - (int)strlen(str); + + if (code == 0) + break; + + if (spaces < 0) + spaces = 0; + + printf("\t%s %*c (0x%8.8x)\n", str, spaces, ' ', code); + } +} + int parse_cmdline(int argc, char **argv) { int opt; @@ -120,7 +144,8 @@ int parse_cmdline(int argc, char **argv) } /* parse options */ - while ((opt = getopt_long(argc, argv, "d:e:f:hil:prvV:", opts, NULL)) != -1) { + while ((opt = getopt_long(argc, argv, "d:e:f:h::il:prvV:", + opts, NULL)) != -1) { switch (opt) { case 'd': media_opts.devname = optarg; @@ -142,7 +167,16 @@ int parse_cmdline(int argc, char **argv) break; case 'h': - usage(argv[0]); + if (optarg) { + if (!strcmp(optarg, "mbus-fmt")) + list_mbus_formats(); + else + fprintf(stderr, + "Unknown topic \"%s\"\n", + optarg); + } else { + usage(argv[0]); + } exit(0); case 'i': -- 2.1.0.231.g7484e3b