[PATCH 03/21] doc: add documentation for 'bmp'

[Robert Schwebel]

Signed-off-by: Robert Schwebel <r.schwebel at pengutronix.de>
---
 Documentation/commands.dox |    1 +
 commands/bmp.c             |   27 +++++++++++++++++++--------
 2 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/Documentation/commands.dox b/Documentation/commands.dox
index e8ad177..ac280d6 100644
--- a/Documentation/commands.dox
+++ b/Documentation/commands.dox
@@ -2,6 +2,7 @@
  * @page command_reference Supported Shell Commands
 
 @li @subpage addpart_command
+ at li @subpage bmp_command
 @li @subpage cat_command
 @li @subpage cd_command
 @li @subpage cp_command
diff --git a/commands/bmp.c b/commands/bmp.c
index 6e17200..9402c05 100644
--- a/commands/bmp.c
+++ b/commands/bmp.c
@@ -193,17 +193,28 @@ failed_memmap:
 	return 1;
 }
 
-static const __maybe_unused char cmd_bmp_help[] =
-"Usage: bmp [OPTION]... FILE\n"
-"show bmp image FILE.\n"
-"  -f <fb>   framebuffer device (/dev/fb0)\n"
-"  -x <xofs> x offset (default center)\n"
-"  -y <yofs> y offset (default center)\n"
-"  -o        render offscreen\n";
+BAREBOX_CMD_HELP_START(bmp)
+BAREBOX_CMD_HELP_USAGE("bmp [OPTIONS] FILE")
+BAREBOX_CMD_HELP_SHORT("Show the bitmap FILE on the framebuffer.")
+BAREBOX_CMD_HELP_OPT  ("-f <fb>",   "framebuffer device (/dev/fb0)")
+BAREBOX_CMD_HELP_OPT  ("-x <xofs>", "x offset (default center)")
+BAREBOX_CMD_HELP_OPT  ("-y <yofs>", "y offset (default center)")
+BAREBOX_CMD_HELP_OPT  ("-o",        "render offscreen")
+BAREBOX_CMD_HELP_END
+
+/**
+ * @page bmp_command
+
+This command displays a graphics in the bitmap (.bmp) format on the
+framebuffer. Currently the bmp command supports images with 8 and 24 bit
+color depth.
+
+\todo What does the -o (offscreen) option do?
+
+ */
 
 BAREBOX_CMD_START(bmp)
 	.cmd		= do_bmp,
 	.usage		= "show a bmp image",
 	BAREBOX_CMD_HELP(cmd_bmp_help)
 BAREBOX_CMD_END
-
-- 
1.7.2.3