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// 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>
/* Container for selected OSD device */
static struct udevice *osd_cur;
/**
* cmd_osd_set_osd_num() - Set the OSD selected for operation
*
* Set the OSD device, which will be used by all subsequent OSD commands.
*
* Devices are identified by their uclass sequence number (as listed by 'osd
* show').
*
* @osdnum: The OSD device to be selected, identified by its sequence number.
* Return: 0 if OK, -ve on error
*/
static int cmd_osd_set_osd_num(unsigned int osdnum)
{
struct udevice *osd;
int res;
res = uclass_get_device_by_seq(UCLASS_VIDEO_OSD, osdnum, &osd);
if (res) {
printf("%s: No OSD %u (err = %d)\n", __func__, osdnum, res);
return res;
}
osd_cur = osd;
return 0;
}
/**
* osd_get_osd_cur() - Get the selected OSD device
*
* Get the OSD device that is used by all OSD commands.
*
* @osdp: Pointer to structure that will receive the currently selected OSD
* device.
* Return: 0 if OK, -ve on error
*/
static int osd_get_osd_cur(struct udevice **osdp)
{
if (!osd_cur) {
puts("No osd selected\n");
return -ENODEV;
}
*osdp = osd_cur;
return 0;
}
/**
* show_osd() - Display information about a OSD device
*
* Display a device's ID (sequence number), and whether it is active (i.e.
* probed) or not.
*
* @osd: OSD device to print information for
*/
static void show_osd(struct udevice *osd)
{
printf("OSD %d:\t%s", osd->req_seq, osd->name);
if (device_active(osd))
printf(" (active %d)", osd->seq);
printf("\n");
}
static int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
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;
if (!osd_cur) {
puts("No osd selected\n");
return CMD_RET_FAILURE;
}
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;
}
res = video_osd_set_mem(osd_cur, x, y, buffer, buflen, count);
if (res) {
free(buffer);
printf("%s: Could not write to video mem\n",
osd_cur->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[])
{
uint x, y;
u8 color;
char *text;
int res;
if (argc < 5)
return CMD_RET_USAGE;
if (!osd_cur) {
puts("No osd selected\n");
return CMD_RET_FAILURE;
}
x = simple_strtoul(argv[1], NULL, 16);
y = simple_strtoul(argv[2], NULL, 16);
color = simple_strtoul(argv[3], NULL, 16);
text = argv[4];
res = video_osd_print(osd_cur, x, y, color, text);
if (res) {
printf("Could not print string to osd %s\n", osd_cur->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[])
{
uint x, y;
int res;
if (argc < 3)
return CMD_RET_USAGE;
if (!osd_cur) {
puts("No osd selected\n");
return CMD_RET_FAILURE;
}
x = simple_strtoul(argv[1], NULL, 16);
y = simple_strtoul(argv[2], NULL, 16);
res = video_osd_set_size(osd_cur, x, y);
if (res) {
printf("Could not set size on osd %s\n", osd_cur->name);
return CMD_RET_FAILURE;
}
return CMD_RET_SUCCESS;
}
static int do_show_osd(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
struct udevice *osd;
if (argc == 1) {
/* show all OSDs */
struct uclass *uc;
int res;
res = uclass_get(UCLASS_VIDEO_OSD, &uc);
if (res) {
printf("Error while getting OSD uclass (err=%d)\n",
res);
return CMD_RET_FAILURE;
}
uclass_foreach_dev(osd, uc)
show_osd(osd);
} else {
int i, res;
/* show specific OSD */
i = simple_strtoul(argv[1], NULL, 10);
res = uclass_get_device_by_seq(UCLASS_VIDEO_OSD, i, &osd);
if (res) {
printf("Invalid osd %d: err=%d\n", i, res);
return CMD_RET_FAILURE;
}
show_osd(osd);
}
return CMD_RET_SUCCESS;
}
static int do_osd_num(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
int osd_no;
int res = 0;
if (argc == 1) {
/* querying current setting */
struct udevice *osd;
if (!osd_get_osd_cur(&osd))
osd_no = osd->seq;
else
osd_no = -1;
printf("Current osd is %d\n", osd_no);
} else {
osd_no = simple_strtoul(argv[1], NULL, 10);
printf("Setting osd to %d\n", osd_no);
res = cmd_osd_set_osd_num(osd_no);
if (res)
printf("Failure changing osd number (err = %d)\n", res);
}
return res ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
}
static cmd_tbl_t cmd_osd_sub[] = {
U_BOOT_CMD_MKENT(show, 1, 1, do_show_osd, "", ""),
U_BOOT_CMD_MKENT(dev, 1, 1, do_osd_num, "", ""),
U_BOOT_CMD_MKENT(write, 4, 1, do_osd_write, "", ""),
U_BOOT_CMD_MKENT(print, 4, 1, do_osd_print, "", ""),
U_BOOT_CMD_MKENT(size, 2, 1, do_osd_size, "", ""),
};
static int do_osd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
cmd_tbl_t *c;
if (argc < 2)
return CMD_RET_USAGE;
/* Strip off leading 'osd' command argument */
argc--;
argv++;
c = find_cmd_tbl(argv[0], &cmd_osd_sub[0], ARRAY_SIZE(cmd_osd_sub));
if (c)
return c->cmd(cmdtp, flag, argc, argv);
else
return CMD_RET_USAGE;
}
static char osd_help_text[] =
"show - show OSD info\n"
"osd dev [dev] - show or set current OSD\n"
"write [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory at a given position\n"
"print [pos_x] [pos_y] [color] [text] - write ASCII buffer (given by text data and driver-specific color information) to osd memory\n"
"size [size_x] [size_y] - set OSD XY size in characters\n";
U_BOOT_CMD(
osd, 6, 1, do_osd,
"OSD sub-system",
osd_help_text
);