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drivers: Add OSD uclass

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Some devices offer a text-based OSD (on-screen display) that can be
programmatically controlled (i.e. text displayed on).

Add a uclass to support such devices.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
This commit is contained in:
Mario Six
2018-09-27 09:19:29 +02:00
committed by Anatolij Gustschin
parent 662f381aad
commit 39a336f116
5 changed files with 247 additions and 0 deletions
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8
drivers/video/Kconfig
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@@ -683,4 +683,12 @@ config VIDEO_DT_SIMPLEFB
The video output is initialized by U-Boot, and kept by the
kernel.
config OSD
bool "Enable OSD support"
depends on DM
default n
help
This supports drivers that provide a OSD (on-screen display), which
is a (usually text-oriented) graphics buffer to show information on
a display.
endmenu

1
drivers/video/Makefile
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@@ -31,6 +31,7 @@ obj-$(CONFIG_FSL_DIU_FB) += fsl_diu_fb.o videomodes.o
obj-$(CONFIG_LD9040) += ld9040.o
obj-$(CONFIG_LG4573) += lg4573.o
obj-$(CONFIG_LOGICORE_DP_TX) += logicore_dp_tx.o
obj-$(CONFIG_OSD) += video_osd-uclass.o
obj-$(CONFIG_PXA_LCD) += pxa_lcd.o
obj-$(CONFIG_S6E8AX0) += s6e8ax0.o
obj-$(CONFIG_SCF0403_LCD) += scf0403_lcd.o

45
drivers/video/video_osd-uclass.c Normal file
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@@ -0,0 +1,45 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2017
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
*/
#include <common.h>
#include <dm.h>
#include <video_osd.h>
int video_osd_get_info(struct udevice *dev, struct video_osd_info *info)
{
struct video_osd_ops *ops = video_osd_get_ops(dev);
return ops->get_info(dev, info);
}
int video_osd_set_mem(struct udevice *dev, uint col, uint row, u8 *buf,
size_t buflen, uint count)
{
struct video_osd_ops *ops = video_osd_get_ops(dev);
return ops->set_mem(dev, col, row, buf, buflen, count);
}
int video_osd_set_size(struct udevice *dev, uint col, uint row)
{
struct video_osd_ops *ops = video_osd_get_ops(dev);
return ops->set_size(dev, col, row);
}
int video_osd_print(struct udevice *dev, uint col, uint row, ulong color,
char *text)
{
struct video_osd_ops *ops = video_osd_get_ops(dev);
return ops->print(dev, col, row, color, text);
}
UCLASS_DRIVER(video_osd) = {
.id = UCLASS_VIDEO_OSD,
.name = "video_osd",
.flags = DM_UC_FLAG_SEQ_ALIAS,
};