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![Mario Six](/assets/img/avatar_default.png)
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>
292 lines
6.2 KiB
C
292 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2017
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* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
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*
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* based on the gdsys osd driver, which is
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*
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* (C) Copyright 2010
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* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
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*/
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#include <common.h>
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#include <dm.h>
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#include <hexdump.h>
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#include <video_osd.h>
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#include <malloc.h>
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/* Container for selected OSD device */
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static struct udevice *osd_cur;
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/**
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* cmd_osd_set_osd_num() - Set the OSD selected for operation
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*
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* Set the OSD device, which will be used by all subsequent OSD commands.
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*
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* Devices are identified by their uclass sequence number (as listed by 'osd
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* show').
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*
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* @osdnum: The OSD device to be selected, identified by its sequence number.
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* Return: 0 if OK, -ve on error
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*/
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static int cmd_osd_set_osd_num(unsigned int osdnum)
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{
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struct udevice *osd;
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int res;
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res = uclass_get_device_by_seq(UCLASS_VIDEO_OSD, osdnum, &osd);
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if (res) {
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printf("%s: No OSD %u (err = %d)\n", __func__, osdnum, res);
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return res;
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}
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osd_cur = osd;
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return 0;
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}
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/**
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* osd_get_osd_cur() - Get the selected OSD device
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*
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* Get the OSD device that is used by all OSD commands.
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*
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* @osdp: Pointer to structure that will receive the currently selected OSD
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* device.
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* Return: 0 if OK, -ve on error
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*/
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static int osd_get_osd_cur(struct udevice **osdp)
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{
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if (!osd_cur) {
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puts("No osd selected\n");
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return -ENODEV;
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}
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*osdp = osd_cur;
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return 0;
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}
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/**
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* show_osd() - Display information about a OSD device
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*
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* Display a device's ID (sequence number), and whether it is active (i.e.
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* probed) or not.
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*
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* @osd: OSD device to print information for
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*/
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static void show_osd(struct udevice *osd)
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{
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printf("OSD %d:\t%s", osd->req_seq, osd->name);
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if (device_active(osd))
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printf(" (active %d)", osd->seq);
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printf("\n");
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}
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static int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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uint x, y;
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uint count;
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char *hexstr;
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u8 *buffer;
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size_t buflen;
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int res;
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if (argc < 4 || (strlen(argv[3]) % 2))
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return CMD_RET_USAGE;
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if (!osd_cur) {
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puts("No osd selected\n");
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return CMD_RET_FAILURE;
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}
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x = simple_strtoul(argv[1], NULL, 16);
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y = simple_strtoul(argv[2], NULL, 16);
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hexstr = argv[3];
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count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
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buflen = strlen(hexstr) / 2;
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buffer = malloc(buflen);
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if (!buffer) {
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puts("Memory allocation failure\n");
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return CMD_RET_FAILURE;
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}
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res = hex2bin(buffer, hexstr, buflen);
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if (res) {
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free(buffer);
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puts("Hexadecimal input contained invalid characters\n");
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return CMD_RET_FAILURE;
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}
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res = video_osd_set_mem(osd_cur, x, y, buffer, buflen, count);
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if (res) {
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free(buffer);
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printf("%s: Could not write to video mem\n",
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osd_cur->name);
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return CMD_RET_FAILURE;
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}
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free(buffer);
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return CMD_RET_SUCCESS;
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}
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static int do_osd_print(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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uint x, y;
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u8 color;
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char *text;
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int res;
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if (argc < 5)
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return CMD_RET_USAGE;
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if (!osd_cur) {
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puts("No osd selected\n");
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return CMD_RET_FAILURE;
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}
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x = simple_strtoul(argv[1], NULL, 16);
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y = simple_strtoul(argv[2], NULL, 16);
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color = simple_strtoul(argv[3], NULL, 16);
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text = argv[4];
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res = video_osd_print(osd_cur, x, y, color, text);
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if (res) {
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printf("Could not print string to osd %s\n", osd_cur->name);
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return CMD_RET_FAILURE;
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}
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return CMD_RET_SUCCESS;
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}
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static int do_osd_size(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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uint x, y;
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int res;
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if (argc < 3)
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return CMD_RET_USAGE;
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if (!osd_cur) {
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puts("No osd selected\n");
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return CMD_RET_FAILURE;
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}
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x = simple_strtoul(argv[1], NULL, 16);
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y = simple_strtoul(argv[2], NULL, 16);
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res = video_osd_set_size(osd_cur, x, y);
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if (res) {
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printf("Could not set size on osd %s\n", osd_cur->name);
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return CMD_RET_FAILURE;
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}
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return CMD_RET_SUCCESS;
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}
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static int do_show_osd(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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struct udevice *osd;
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if (argc == 1) {
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/* show all OSDs */
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struct uclass *uc;
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int res;
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res = uclass_get(UCLASS_VIDEO_OSD, &uc);
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if (res) {
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printf("Error while getting OSD uclass (err=%d)\n",
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res);
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return CMD_RET_FAILURE;
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}
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uclass_foreach_dev(osd, uc)
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show_osd(osd);
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} else {
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int i, res;
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/* show specific OSD */
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i = simple_strtoul(argv[1], NULL, 10);
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res = uclass_get_device_by_seq(UCLASS_VIDEO_OSD, i, &osd);
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if (res) {
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printf("Invalid osd %d: err=%d\n", i, res);
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return CMD_RET_FAILURE;
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}
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show_osd(osd);
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}
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return CMD_RET_SUCCESS;
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}
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static int do_osd_num(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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int osd_no;
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int res = 0;
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if (argc == 1) {
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/* querying current setting */
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struct udevice *osd;
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if (!osd_get_osd_cur(&osd))
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osd_no = osd->seq;
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else
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osd_no = -1;
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printf("Current osd is %d\n", osd_no);
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} else {
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osd_no = simple_strtoul(argv[1], NULL, 10);
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printf("Setting osd to %d\n", osd_no);
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res = cmd_osd_set_osd_num(osd_no);
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if (res)
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printf("Failure changing osd number (err = %d)\n", res);
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}
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return res ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
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}
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static cmd_tbl_t cmd_osd_sub[] = {
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U_BOOT_CMD_MKENT(show, 1, 1, do_show_osd, "", ""),
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U_BOOT_CMD_MKENT(dev, 1, 1, do_osd_num, "", ""),
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U_BOOT_CMD_MKENT(write, 4, 1, do_osd_write, "", ""),
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U_BOOT_CMD_MKENT(print, 4, 1, do_osd_print, "", ""),
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U_BOOT_CMD_MKENT(size, 2, 1, do_osd_size, "", ""),
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};
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static int do_osd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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cmd_tbl_t *c;
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if (argc < 2)
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return CMD_RET_USAGE;
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/* Strip off leading 'osd' command argument */
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argc--;
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argv++;
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c = find_cmd_tbl(argv[0], &cmd_osd_sub[0], ARRAY_SIZE(cmd_osd_sub));
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if (c)
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return c->cmd(cmdtp, flag, argc, argv);
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else
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return CMD_RET_USAGE;
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}
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static char osd_help_text[] =
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"show - show OSD info\n"
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"osd dev [dev] - show or set current OSD\n"
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"write [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory at a given position\n"
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"print [pos_x] [pos_y] [color] [text] - write ASCII buffer (given by text data and driver-specific color information) to osd memory\n"
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"size [size_x] [size_y] - set OSD XY size in characters\n";
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U_BOOT_CMD(
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osd, 6, 1, do_osd,
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"OSD sub-system",
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osd_help_text
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);
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