cmd: remove unused `display` command
Compiling the display command leads to an error
undefined reference to `display_set'
No implementation of display_set() exists in U-Boot.
Eliminate the `display` command as well as the accompanying files.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt
Tom Rini
parent
77934fdedf
commit
005a804d0f
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@ -1425,14 +1425,6 @@ config CMD_CLS
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Enable the 'cls' command which clears the screen contents
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Enable the 'cls' command which clears the screen contents
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on video frame buffer.
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on video frame buffer.
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config CMD_DISPLAY
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bool "Enable the 'display' command, for character displays"
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help
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(this needs porting to driver model)
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This enables the 'display' command which allows a string to be
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displayed on a simple board-specific display. Implement
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display_putc() to use it.
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config CMD_EFIDEBUG
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config CMD_EFIDEBUG
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bool "efidebug - display/configure UEFI environment"
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bool "efidebug - display/configure UEFI environment"
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depends on EFI_LOADER
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depends on EFI_LOADER
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@ -45,7 +45,6 @@ obj-$(CONFIG_CMD_SOUND) += sound.o
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ifdef CONFIG_POST
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ifdef CONFIG_POST
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obj-$(CONFIG_CMD_DIAG) += diag.o
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obj-$(CONFIG_CMD_DIAG) += diag.o
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endif
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endif
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obj-$(CONFIG_CMD_DISPLAY) += display.o
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obj-$(CONFIG_CMD_DTIMG) += dtimg.o
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obj-$(CONFIG_CMD_DTIMG) += dtimg.o
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obj-$(CONFIG_CMD_ECHO) += echo.o
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obj-$(CONFIG_CMD_ECHO) += echo.o
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obj-$(CONFIG_ENV_IS_IN_EEPROM) += eeprom.o
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obj-$(CONFIG_ENV_IS_IN_EEPROM) += eeprom.o
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@ -1,53 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2005
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <command.h>
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#include <led-display.h>
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#undef DEBUG_DISP
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int do_display (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int i;
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/* Clear display */
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display_set(DISPLAY_CLEAR | DISPLAY_HOME);
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if (argc < 2)
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return (0);
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for (i = 1; i < argc; i++) {
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char *p = argv[i];
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if (i > 1) { /* Insert a space between strings */
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display_putc(' ');
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}
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while ((*p)) {
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#ifdef DEBUG_DISP
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putc(*p);
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#endif
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display_putc(*p++);
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}
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}
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#ifdef DEBUG_DISP
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putc('\n');
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#endif
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return (0);
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}
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/***************************************************/
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U_BOOT_CMD(
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display, CONFIG_SYS_MAXARGS, 1, do_display,
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"display string on dot matrix display",
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"[<string>]\n"
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" - with <string> argument: display <string> on dot matrix display\n"
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" - without arguments: clear dot matrix display"
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);
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@ -1,26 +0,0 @@
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LED display internal API
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=======================================
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This README describes the LED display API.
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The API is defined by the include file include/led-display.h
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The first step in to define CONFIG_CMD_DISPLAY in the board config file.
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Then you need to provide the following functions to access LED display:
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void display_set(int cmd);
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This function should control the state of the LED display. Argument is
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an ORed combination of the following values:
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DISPLAY_CLEAR -- clear the display
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DISPLAY_HOME -- set the position to the beginning of display
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int display_putc(char c);
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This function should display it's parameter on the LED display in the
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current position. Returns the displayed character on success or -1 in
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case of failure.
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With this functions defined 'display' command will display it's
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arguments on the LED display (or clear the display if called without
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arguments).
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@ -1,18 +0,0 @@
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2005-2010
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2010
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* Sergei Poselenov, Emcraft Systems, sposelenov@emcraft.com.
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*/
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#ifndef _led_display_h_
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#define _led_display_h_
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/* Display Commands */
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#define DISPLAY_CLEAR 0x1 /* Clear the display */
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#define DISPLAY_HOME 0x2 /* Set cursor at home position */
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void display_set(int cmd);
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int display_putc(char c);
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#endif
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