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rockbox/bootloader/rocker_linux.c
Solomon Peachy 0c4ae417d5 bootloader: Consolidate xDuoo X3ii/X20 and AGPTek Rocker bootloaders 
Bonus changes:

 * boot mode selection stored on SD card

Change-Id: I225a06d149ae71c1882f632c30d0fe4ab5308a74
2020-07-22 17:43:25 +00:00

574 lines
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2016 by Amaury Pouly
* 2018 by Marcin Bukat
* 2018 by Roman Stolyarov
*
* Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
* and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "system.h"
#include "lcd.h"
#include "backlight.h"
#include "button-target.h"
#include "button.h"
#include "../kernel/kernel-internal.h"
#include "core_alloc.h"
#include "filesystem-app.h"
#include "lcd.h"
#include "font.h"
#include "power.h"
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/wait.h>
#include <stdarg.h>
#include "version.h"
/* Basic configuration */
#if defined(AGPTEK_ROCKER)
#define ICON_WIDTH 70
#define ICON_HEIGHT 70
#define RBFILE "rockbox.rocker"
#elif defined(XDUOO_X3II)
#define ICON_WIDTH 130
#define ICON_HEIGHT 130
#define RBFILE "rockbox.x3ii"
#elif defined(XDUOO_X20)
#define ICON_WIDTH 130
#define ICON_HEIGHT 130
#define RBFILE "rockbox.x20"
#else
#error "must define ICON_WIDTH/HEIGHT"
#endif
#define BASE_DIR "/mnt/sd_0"
/* images */
#include "bitmaps/rockboxicon.h"
#include "bitmaps/hibyicon.h"
#include "bitmaps/toolsicon.h"
/* don't issue an error when parsing the file for dependencies */
#if defined(BMPWIDTH_rockboxicon) && (BMPWIDTH_rockboxicon != ICON_WIDTH || \
BMPHEIGHT_rockboxicon != ICON_HEIGHT)
#error rockboxicon has the wrong resolution
#endif
#if defined(BMPWIDTH_hibyicon) && (BMPWIDTH_hibyicon != ICON_WIDTH || \
BMPHEIGHT_hibyicon != ICON_HEIGHT)
#error hibyicon has the wrong resolution
#endif
#if defined(BMPWIDTH_toolsicon) && (BMPWIDTH_toolsicon != ICON_WIDTH || \
BMPHEIGHT_toolsicon != ICON_HEIGHT)
#error toolsicon has the wrong resolution
#endif
#ifndef BUTTON_LEFT
#define BUTTON_LEFT BUTTON_REW
#endif
#ifndef BUTTON_RIGHT
#define BUTTON_RIGHT BUTTON_FF
#endif
#ifndef BUTTON_SELECT
#define BUTTON_SELECT BUTTON_PLAY
#endif
#ifndef BUTTON_DOWN
#define BUTTON_DOWN BUTTON_NEXT
#endif
#ifndef BUTTON_UP
#define BUTTON_UP BUTTON_PREV
#endif
/* return icon y position (x is always centered) */
static int get_icon_y(void)
{
int h;
lcd_getstringsize("X", NULL, &h);
return ((LCD_HEIGHT - ICON_HEIGHT)/2) - h;
}
/* Important Note: this bootloader is carefully written so that in case of
* error, the OF is run. This seems like the safest option since the OF is
* always there and might do magic things. */
enum boot_mode
{
BOOT_ROCKBOX,
BOOT_TOOLS,
BOOT_OF,
BOOT_COUNT,
BOOT_USB, /* special */
BOOT_STOP, /* power down/suspend */
};
static void display_text_center(int y, const char *text)
{
int width;
lcd_getstringsize(text, &width, NULL);
lcd_putsxy(LCD_WIDTH / 2 - width / 2, y, text);
}
static void display_text_centerf(int y, const char *format, ...)
{
char buf[1024];
va_list ap;
va_start(ap, format);
vsnprintf(buf, sizeof(buf), format, ap);
display_text_center(y, buf);
}
/* get timeout before taking action if the user doesn't touch the device */
static int get_inactivity_tmo(void)
{
#if defined(HAS_BUTTON_HOLD)
if(button_hold())
return 5 * HZ; /* Inactivity timeout when on hold */
else
#endif
return 10 * HZ; /* Inactivity timeout when not on hold */
}
/* return action on idle timeout */
static enum boot_mode inactivity_action(enum boot_mode cur_selection)
{
#if defined(HAS_BUTTON_HOLD)
if(button_hold())
return BOOT_STOP; /* power down/suspend */
else
#endif
return cur_selection; /* return last choice */
}
/* we store the boot mode in a file in /tmp so we can reload it between 'boots'
* (since the mostly suspends instead of powering down) */
static enum boot_mode load_boot_mode(enum boot_mode mode)
{
int fd = open(BASE_DIR "/.rockbox/rb_bl_mode.txt", O_RDONLY);
if(fd >= 0)
{
read(fd, &mode, sizeof(mode));
close(fd);
}
return mode;
}
static void save_boot_mode(enum boot_mode mode)
{
int fd = open(BASE_DIR "/.rockbox/rb_bl_mode.txt", O_RDWR | O_CREAT | O_TRUNC);
if(fd >= 0)
{
write(fd, &mode, sizeof(mode));
close(fd);
}
}
static enum boot_mode get_boot_mode(void)
{
/* load previous mode, or start with rockbox if none */
enum boot_mode init_mode = load_boot_mode(BOOT_ROCKBOX);
/* wait for user action */
enum boot_mode mode = init_mode;
int last_activity = current_tick;
#if defined(HAS_BUTTON_HOLD)
bool hold_status = button_hold();
#endif
while(true)
{
/* on usb detect, return to usb
* FIXME this is a hack, we need proper usb detection */
if(power_input_status() & POWER_INPUT_USB_CHARGER)
{
/* save last choice */
save_boot_mode(mode);
return BOOT_USB;
}
/* inactivity detection */
int timeout = last_activity + get_inactivity_tmo();
if(TIME_AFTER(current_tick, timeout))
{
/* save last choice */
save_boot_mode(mode);
return inactivity_action(mode);
}
/* redraw */
lcd_clear_display();
/* display top text */
#if defined(HAS_BUTTON_HOLD)
if(button_hold())
{
lcd_set_foreground(LCD_RGBPACK(255, 0, 0));
display_text_center(0, "ON HOLD!");
}
else
#endif
{
lcd_set_foreground(LCD_RGBPACK(255, 201, 0));
display_text_center(0, "SELECT PLAYER");
}
lcd_set_foreground(LCD_RGBPACK(255, 201, 0));
/* display icon */
const struct bitmap *icon = (mode == BOOT_OF) ? &bm_hibyicon :
(mode == BOOT_ROCKBOX) ? &bm_rockboxicon : &bm_toolsicon;
lcd_bmp(icon, (LCD_WIDTH - ICON_WIDTH) / 2, get_icon_y());
/* display bottom description */
const char *desc = (mode == BOOT_OF) ? "HIBY PLAYER" :
(mode == BOOT_ROCKBOX) ? "ROCKBOX" : "TOOLS";
int desc_height;
lcd_getstringsize(desc, NULL, &desc_height);
display_text_center(LCD_HEIGHT - 3*desc_height, desc);
/* display arrows */
int arrow_width, arrow_height;
lcd_getstringsize("<", &arrow_width, &arrow_height);
int arrow_y = get_icon_y() + ICON_HEIGHT / 2 - arrow_height / 2;
lcd_putsxy(arrow_width / 2, arrow_y, "<");
lcd_putsxy(LCD_WIDTH - 3 * arrow_width / 2, arrow_y, ">");
lcd_set_foreground(LCD_RGBPACK(0, 255, 0));
display_text_centerf(LCD_HEIGHT - arrow_height * 3 / 2, "timeout in %d sec",
(timeout - current_tick + HZ - 1) / HZ);
lcd_update();
/* wait for a key */
int btn = button_get_w_tmo(HZ / 10);
#if defined(HAS_BUTTON_HOLD)
/* record action, changing HOLD counts as action */
if(btn & BUTTON_MAIN || hold_status != button_hold())
last_activity = current_tick;
hold_status = button_hold();
#else
if(btn & BUTTON_MAIN)
last_activity = current_tick;
#endif
/* ignore release, allow repeat */
if(btn & BUTTON_REL)
continue;
if(btn & BUTTON_REPEAT)
btn &= ~BUTTON_REPEAT;
/* play -> stop loop and return mode */
if(btn == BUTTON_SELECT)
break;
/* left/right/up/down: change mode */
if(btn == BUTTON_LEFT || btn == BUTTON_DOWN)
mode = (mode + BOOT_COUNT - 1) % BOOT_COUNT;
if(btn == BUTTON_RIGHT || btn == BUTTON_UP)
mode = (mode + 1) % BOOT_COUNT;
}
/* save mode */
save_boot_mode(mode);
return mode;
}
void error_screen(const char *msg)
{
lcd_clear_display();
lcd_putsf(0, 0, msg);
lcd_update();
}
int choice_screen(const char *title, bool center, int nr_choices, const char *choices[])
{
int choice = 0;
int max_len = 0;
int h;
lcd_getstringsize("x", NULL, &h);
for(int i = 0; i < nr_choices; i++)
{
int len = strlen(choices[i]);
if(len > max_len)
max_len = len;
}
char *buf = malloc(max_len + 10);
int top_y = 2 * h;
int nr_lines = (LCD_HEIGHT - top_y) / h;
while(true)
{
/* make sure choice is visible */
int offset = choice - nr_lines / 2;
if(offset < 0)
offset = 0;
lcd_clear_display();
/* display top text */
lcd_set_foreground(LCD_RGBPACK(255, 201, 0));
display_text_center(0, title);
int line = 0;
for(int i = 0; i < nr_choices && line < nr_lines; i++)
{
if(i < offset)
continue;
if(i == choice)
lcd_set_foreground(LCD_RGBPACK(255, 0, 0));
else
lcd_set_foreground(LCD_RGBPACK(255, 201, 0));
sprintf(buf, "%s", choices[i]);
if(center)
display_text_center(top_y + h * line, buf);
else
lcd_putsxy(0, top_y + h * line, buf);
line++;
}
lcd_update();
/* wait for a key */
int btn = button_get_w_tmo(HZ / 10);
/* ignore release, allow repeat */
if(btn & BUTTON_REL)
continue;
if(btn & BUTTON_REPEAT)
btn &= ~BUTTON_REPEAT;
/* play -> stop loop and return mode */
if(btn == BUTTON_SELECT || btn == BUTTON_LEFT)
{
free(buf);
return btn == BUTTON_SELECT ? choice : -1;
}
/* left/right/up/down: change mode */
if(btn == BUTTON_UP)
choice = (choice + nr_choices - 1) % nr_choices;
if(btn == BUTTON_DOWN)
choice = (choice + 1) % nr_choices;
}
}
void run_file(const char *name)
{
char *dirname = BASE_DIR;
char *buf = malloc(strlen(dirname) + strlen(name) + 1);
sprintf(buf, "%s%s", dirname, name);
lcd_clear_display();
lcd_set_foreground(LCD_RGBPACK(255, 201, 0));
lcd_putsf(0, 0, "Running %s", name);
lcd_update();
pid_t pid = fork();
if(pid == 0)
{
execlp("sh", "sh", buf, NULL);
_exit(42);
}
int status;
waitpid(pid, &status, 0);
if(WIFEXITED(status))
{
lcd_set_foreground(LCD_RGBPACK(255, 201, 0));
lcd_putsf(0, 1, "program returned %d", WEXITSTATUS(status));
}
else
{
lcd_set_foreground(LCD_RGBPACK(255, 0, 0));
lcd_putsf(0, 1, "an error occured: %x", status);
}
lcd_set_foreground(LCD_RGBPACK(255, 0, 0));
lcd_putsf(0, 3, "Press any key or wait");
lcd_update();
/* wait a small time */
sleep(HZ);
/* ignore event */
while(button_get(false) != 0) {}
/* wait for any key or timeout */
button_get_w_tmo(4 * HZ);
}
void run_script_menu(void)
{
const char **entries = NULL;
int nr_entries = 0;
DIR *dir = opendir(BASE_DIR);
struct dirent *ent;
while((ent = readdir(dir)))
{
if(ent->d_type != DT_REG)
continue;
entries = realloc(entries, (nr_entries + 1) * sizeof(const char *));
entries[nr_entries++] = strdup(ent->d_name);
}
closedir(dir);
int idx = choice_screen("RUN SCRIPT", false, nr_entries, entries);
if(idx >= 0)
run_file(entries[idx]);
for(int i = 0; i < nr_entries; i++)
free((char *)entries[i]);
free(entries);
}
static void adb(int start)
{
pid_t pid = fork();
if(pid == 0)
{
execlp("/etc/init.d/K90adb", "K90adb", start ? "start" : "stop", NULL);
_exit(42);
}
int status;
waitpid(pid, &status, 0);
#if 0
if(WIFEXITED(status))
{
lcd_set_foreground(LCD_RGBPACK(255, 201, 0));
lcd_putsf(0, 1, "program returned %d", WEXITSTATUS(status));
}
else
{
lcd_set_foreground(LCD_RGBPACK(255, 0, 0));
lcd_putsf(0, 1, "an error occured: %x", status);
}
#endif
}
static void tools_screen(void)
{
const char *choices[] = {"ADB start", "ADB stop", "Run script", "Restart", "Shutdown"};
int choice = choice_screen("TOOLS MENU", true, 5, choices);
if(choice == 0)
{
/* run service menu */
printf("Starting ADB service...\n");
fflush(stdout);
adb(1);
}
else if(choice == 1)
{
printf("Stopping ADB service...\n");
fflush(stdout);
adb(0);
}
else if(choice == 2)
{
run_script_menu();
}
else if(choice == 3)
{
system_reboot();
}
else if(choice == 4)
{
power_off();
}
}
#if 0
/* open log file */
static int open_log(void)
{
/* open regular log file */
int fd = open(BASE_DIR "/rockbox.log", O_RDWR | O_CREAT | O_APPEND);
/* get its size */
struct stat stat;
if(fstat(fd, &stat) != 0)
return fd; /* on error, don't do anything */
/* if file is too large, rename it and start a new log file */
if(stat.st_size < 1000000)
return fd;
close(fd);
/* move file */
rename(BASE_DIR "/rockbox.log", BASE_DIR "/rockbox.log.1");
/* re-open the file, truncate in case the move was unsuccessful */
return open(BASE_DIR "/rockbox.log", O_RDWR | O_CREAT | O_APPEND | O_TRUNC);
}
#endif
int main(int argc, char **argv)
{
(void) argc;
(void) argv;
#if 0
/* redirect stdout and stderr to have error messages logged somewhere on the
* user partition */
int fd = open_log();
if(fd >= 0)
{
dup2(fd, fileno(stdout));
dup2(fd, fileno(stderr));
close(fd);
}
/* print version */
printf("Rockbox boot loader\n");
printf("Version: %s\n", rbversion);
printf("%s\n", MODEL_NAME);
#endif
system_init();
core_allocator_init();
kernel_init();
paths_init();
lcd_init();
font_init();
button_init();
backlight_init();
backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
// /* try to load the extra font we install on the device */
// int font_id = font_load("/usr/local/share/rockbox/bootloader.fnt");
// if(font_id >= 0)
// lcd_setfont(font_id);
/* run all tools menu */
while(true)
{
enum boot_mode mode = get_boot_mode();
if(mode == BOOT_USB || mode == BOOT_OF)
{
#if 0
fflush(stdout);
fflush(stderr);
close(fileno(stdout));
close(fileno(stderr));
#endif
/* for now the only way we have to trigger USB mode it to run the OF */
/* boot OF */
execvp("/usr/bin/hiby_player", argv);
error_screen("Cannot boot OF");
sleep(5 * HZ);
}
else if(mode == BOOT_TOOLS)
{
tools_screen();
}
else if(mode == BOOT_ROCKBOX)
{
fflush(stdout);
system("/bin/cp " BASE_DIR "/.rockbox/" RBFILE " /tmp");
execl("/tmp/" RBFILE, RBFILE, NULL);
printf("execvp failed: %s\n", strerror(errno));
/* fallback to OF in case of failure */
error_screen("Cannot boot Rockbox");
sleep(5 * HZ);
}
else
{
printf("suspend\n");
// nwz_power_suspend();
}
}
/* if we reach this point, everything failed, so return an error so that
* sysmgrd knows something is wrong */
return 1;
}
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