mirror of
https://github.com/Rockbox/rockbox.git
synced 2026-04-11 16:37:45 -04:00
19af7131e2
Allow toggling the system debug state from the debug menu in Rockbox, or by holding a button combo at boot, so that an SWD/JTAG debugger can be attached to normal non-debug builds without too much hassle. Change-Id: Iee47ef916ade2e5ec1094a63c68e48f1b27b0bbb
136 lines
3.5 KiB
C
136 lines
3.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2025 by Aidan MacDonald
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "system.h"
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#include "kernel.h"
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#include "button.h"
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#include "lcd.h"
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#include "font.h"
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#include "action.h"
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#include "list.h"
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#include "regs/stm32h743/dbgmcu.h"
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#include "regs/cortex-m/cm_debug.h"
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#include <stdio.h>
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enum
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{
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SWD_MENU_IS_ENABLED,
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SWD_MENU_IS_ATTACHED,
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SWD_MENU_NUM_ENTRIES
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};
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static int swd_menu_action_cb(int action, struct gui_synclist *lists)
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{
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int sel = gui_synclist_get_sel_pos(lists);
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if (sel == SWD_MENU_IS_ENABLED && action == ACTION_STD_OK)
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{
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if (reg_readf(DBGMCU_CR, DBGSLEEP_D1))
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system_debug_enable(false);
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else
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system_debug_enable(true);
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action = ACTION_REDRAW;
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}
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if (action == ACTION_NONE)
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action = ACTION_REDRAW;
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return action;
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}
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static const char *swd_menu_get_name(int item, void *data, char *buf, size_t bufsz)
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{
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(void)data;
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switch (item)
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{
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case SWD_MENU_IS_ENABLED:
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snprintf(buf, bufsz, "System debug enabled: %d",
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(int)!!reg_readf(DBGMCU_CR, DBGSLEEP_D1));
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return buf;
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case SWD_MENU_IS_ATTACHED:
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snprintf(buf, bufsz, "DHCSR.C_DEBUGEN bit: %d",
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(int)!!reg_readf(CM_DEBUG_DHCSR, C_DEBUGEN));
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return buf;
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default:
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return "";
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}
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}
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static bool swd_menu(void)
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{
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struct simplelist_info info;
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simplelist_info_init(&info, "SWD/JTAG", SWD_MENU_NUM_ENTRIES, NULL);
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info.action_callback = swd_menu_action_cb;
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info.get_name = swd_menu_get_name;
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return simplelist_show_list(&info);
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}
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/* Menu definition */
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static const struct {
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const char *name;
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bool (*function) (void);
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} menuitems[] = {
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{"SWD/JTAG", swd_menu},
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};
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static int hw_info_menu_action_cb(int btn, struct gui_synclist *lists)
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{
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if (btn == ACTION_STD_OK)
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{
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int sel = gui_synclist_get_sel_pos(lists);
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FOR_NB_SCREENS(i)
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viewportmanager_theme_enable(i, false, NULL);
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menuitems[sel].function();
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btn = ACTION_REDRAW;
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FOR_NB_SCREENS(i)
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viewportmanager_theme_undo(i, false);
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}
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return btn;
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}
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static const char* hw_info_menu_get_name(int item, void *data, char *buf, size_t bufsz)
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{
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(void)buf;
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(void)bufsz;
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(void)data;
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return menuitems[item].name;
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}
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bool dbg_hw_info(void)
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{
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struct simplelist_info info;
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simplelist_info_init(&info, MODEL_NAME " debug menu",
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ARRAYLEN(menuitems), NULL);
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info.action_callback = hw_info_menu_action_cb;
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info.get_name = hw_info_menu_get_name;
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return simplelist_show_list(&info);
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}
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bool dbg_ports(void)
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{
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return false;
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}
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