cmd: Add osd commands

Add command to query information from and write text to on-screen
display (OSD) devices.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>

3 files changed, 161 insertions, 0 deletions

diff --git a/board/gdsys/common/Makefile b/board/gdsys/common/Makefile
index 698ea3b..af9058a 100644
--- a/board/gdsys/common/Makefile
+++ b/board/gdsys/common/Makefile
@@ -15,3 +15,7 @@ obj-$(CONFIG_STRIDER) += mclink.o dp501.o phy.o ioep-fpga.o adv7611.o ch7301.o
 obj-$(CONFIG_STRIDER) += fanctrl.o
 obj-$(CONFIG_STRIDER_CON) += osd.o
 obj-$(CONFIG_STRIDER_CON_DP) += osd.o
+
+ifdef CONFIG_OSD
+obj-$(CONFIG_GDSYS_LEGACY_OSD_CMDS) += osd_cmd.o
+endif
diff --git a/board/gdsys/common/osd_cmd.c b/board/gdsys/common/osd_cmd.c
new file mode 100644
index 0000000..53179b9
--- /dev/null
+++ b/board/gdsys/common/osd_cmd.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2017
+ * Mario Six,  Guntermann & Drunck GmbH, mario.six@gdsys.cc
+ *
+ * based on the gdsys osd driver, which is
+ *
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <hexdump.h>
+#include <video_osd.h>
+#include <malloc.h>
+
+static int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc,
+			char * const argv[])
+{
+	struct udevice *dev;
+	uint x, y;
+	uint count;
+	char *hexstr;
+	u8 *buffer;
+	size_t buflen;
+	int res;
+
+	if (argc < 4 || (strlen(argv[3])) % 2)
+		return CMD_RET_USAGE;
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+	hexstr = argv[3];
+	count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
+
+	buflen = strlen(hexstr) / 2;
+
+	buffer = malloc(buflen);
+	if (!buffer) {
+		puts("Memory allocation failure\n");
+		return CMD_RET_FAILURE;
+	}
+
+	res = hex2bin(buffer, hexstr, buflen);
+	if (res) {
+		free(buffer);
+		puts("Hexadecimal input contained invalid characters\n");
+		return CMD_RET_FAILURE;
+	}
+
+	for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
+	     dev;
+	     uclass_next_device(&dev)) {
+		int res;
+
+		res = video_osd_set_mem(dev, x, y, buffer, buflen, count);
+		if (res) {
+			free(buffer);
+			printf("Could not write to video mem on osd %s\n",
+			       dev->name);
+			return CMD_RET_FAILURE;
+		}
+	}
+
+	free(buffer);
+
+	return CMD_RET_SUCCESS;
+}
+
+static int do_osd_print(cmd_tbl_t *cmdtp, int flag, int argc,
+			char * const argv[])
+{
+	struct udevice *dev;
+	uint x, y;
+	u8 color;
+	char *text;
+
+	if (argc < 5)
+		return CMD_RET_USAGE;
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+	color = simple_strtoul(argv[3], NULL, 16);
+	text = argv[4];
+
+	for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
+	     dev;
+	     uclass_next_device(&dev)) {
+		int res;
+
+		res = video_osd_print(dev, x, y, color, text);
+		if (res) {
+			printf("Could not print string to osd %s\n", dev->name);
+			return CMD_RET_FAILURE;
+		}
+	}
+
+	return CMD_RET_SUCCESS;
+}
+
+static int do_osd_size(cmd_tbl_t *cmdtp, int flag, int argc,
+		       char * const argv[])
+{
+	struct udevice *dev;
+	uint x, y;
+
+	if (argc < 3)
+		return CMD_RET_USAGE;
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+
+	for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
+	     dev;
+	     uclass_next_device(&dev)) {
+		int res;
+
+		res = video_osd_set_size(dev, x, y);
+
+		if (res) {
+			printf("Could not set size on osd %s\n", dev->name);
+			return CMD_RET_FAILURE;
+		}
+	}
+
+	return CMD_RET_SUCCESS;
+}
+
+U_BOOT_CMD(
+	osdw, 5, 0, do_osd_write,
+	"write 16-bit hex encoded buffer to osd memory",
+	"osdw [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory\n"
+);
+
+U_BOOT_CMD(
+	osdp, 5, 0, do_osd_print,
+	"write ASCII buffer to osd memory",
+	"osdp [pos_x] [pos_y] [color] [text] - write ASCII buffer to osd memory\n"
+);
+
+U_BOOT_CMD(
+	osdsize, 3, 0, do_osd_size,
+	"set OSD XY size in characters",
+	"osdsize [size_x] [size_y] - set OSD XY size in characters\n"
+);
diff --git a/board/gdsys/mpc8308/Kconfig b/board/gdsys/mpc8308/Kconfig
index cb29c25..9d99f68 100644
--- a/board/gdsys/mpc8308/Kconfig
+++ b/board/gdsys/mpc8308/Kconfig
@@ -1,3 +1,9 @@
+config GDSYS_LEGACY_OSD_CMDS
+	bool
+	help
+	  Use the 'osdw', 'osdp', and 'osdsize' legacy commands required by
+	  gdsys devices.
+
 if TARGET_HRCON
 
 config SYS_BOARD
@@ -9,6 +15,9 @@ config SYS_VENDOR
 config SYS_CONFIG_NAME
 	default "hrcon"
 
+config GDSYS_LEGACY_OSD_CMDS
+	default y
+
 endif
 
 if TARGET_STRIDER
@@ -22,6 +31,8 @@ config SYS_VENDOR
 config SYS_CONFIG_NAME
 	default "strider"
 
+config GDSYS_LEGACY_OSD_CMDS
+	default y
 endif
 
 config CMD_IOLOOP