[嵌入式]Rockchip | Rockchip U-Boot调试热键HOTKEY

一、源代码

1、头文件

./arch/arm/include/asm/arch-rockchip/hotkey.h：

/* SPDX-License-Identifier:     GPL-2.0+ */
/*
 * (C) Copyright 2019 Rockchip Electronics Co., Ltd
 */
#ifndef _ROCKCHIP_HOTKEY_H_
#define _ROCKCHIP_HOTKEY_H_
enum hotkey_t {
    HK_INVAL,
    HK_BROM_DNL,
    HK_CLI_OS_PRE,
    HK_CLI_OS_GO,
    HK_CMDLINE,
    HK_FASTBOOT,
    HK_FDT,
    HK_INITCALL,
    HK_REGULATOR,
    HK_ROCKUSB_DNL,
    HK_SYSMEM,
};
bool is_hotkey(enum hotkey_t id);
void hotkey_run(enum hotkey_t id);
#endif

2、C文件

./arch/arm/mach-rockchip/hotkey.c：

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd
 */
#include <common.h>
#include <bidram.h>
#include <cli.h>
#include <console.h>
#include <sysmem.h>
#include <asm/arch/hotkey.h>
DECLARE_GLOBAL_DATA_PTR;
#define CTRL_A      0x01    /* shell(cli) on BOOTM_STATE_OS_PREP */
#define CTRL_B      0x02    /* bootrom mode */
#define CTRL_D      0x04    /* download mde */
#define CTRL_F      0x06    /* fastboot mode */
#define CTRL_I      0x09    /* inicall debug for kernel */
#define CTRL_M      0x0d    /* memory(sysmem/bidram) */
#define CTRL_P      0x10    /* parameter(cmdline) dump */
#define CTRL_R      0x12    /* regulator initial state dump */
#define CTRL_S      0x13    /* shell(cli) on BOOTM_STATE_OS_GO */
#define CTRL_T      0x14    /* print fdt */
bool is_hotkey(enum hotkey_t id)
{
    switch (id) {
    case HK_CMDLINE:
        return gd->console_evt == CTRL_P;
    case HK_INITCALL:
        return gd->console_evt == CTRL_I;
    case HK_REGULATOR:
        return gd->console_evt == CTRL_R;
    case HK_SYSMEM:
        return gd->console_evt == CTRL_M;
    case HK_BROM_DNL:
        return gd->console_evt == CTRL_B;
#ifndef CONFIG_CONSOLE_DISABLE_CLI
    case HK_ROCKUSB_DNL:
        return gd->console_evt == CTRL_D;
    case HK_FASTBOOT:
        return gd->console_evt == CTRL_F;
#endif
    default:
        break;
    }
    return false;
}
void hotkey_run(enum hotkey_t id)
{
    switch ((id)) {
    case HK_SYSMEM:
        if (gd->console_evt == CTRL_M) {
            bidram_dump();
            sysmem_dump();
        }
        break;
    case HK_CMDLINE:
        if (gd->console_evt == CTRL_P)
            printf("cmdline: %s\n", env_get("bootargs"));
        break;
    case HK_INITCALL:
        if (gd->console_evt == CTRL_I)
            env_update("bootargs", "initcall_debug debug");
        break;
    case HK_FDT:
        if (gd->console_evt == CTRL_T)
            run_command("fdt print", 0);
        break;
    case HK_CLI_OS_PRE:
        if (gd->console_evt == CTRL_A)
            cli_loop();
        break;
    case HK_CLI_OS_GO:
        if (gd->console_evt == CTRL_S)
            cli_loop();
        break;
    default:
        break;
    }
}

二、各热键操作