/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2002 by Daniel Stenberg * * 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 #include #include #include #include "config.h" #include "misc.h" #include "lcd.h" #include "file.h" #ifdef __PCTOOL__ #include #include #else #include "sprintf.h" #include "lang.h" #include "dir.h" #include "lcd-remote.h" #include "system.h" #include "timefuncs.h" #include "screens.h" #include "usb_screen.h" #include "talk.h" #include "audio.h" #include "mp3_playback.h" #include "settings.h" #include "storage.h" #include "ata_idle_notify.h" #include "kernel.h" #include "power.h" #include "powermgmt.h" #include "backlight.h" #include "version.h" #include "font.h" #include "splash.h" #include "tagcache.h" #include "scrobbler.h" #include "sound.h" #include "playlist.h" #include "yesno.h" #include "viewport.h" #ifdef IPOD_ACCESSORY_PROTOCOL #include "iap.h" #endif #if (CONFIG_STORAGE & STORAGE_MMC) #include "ata_mmc.h" #endif #include "tree.h" #include "eeprom_settings.h" #if defined(HAVE_RECORDING) && !defined(__PCTOOL__) #include "recording.h" #endif #if defined(HAVE_LCD_BITMAP) && !defined(__PCTOOL__) #include "bmp.h" #include "icons.h" #endif /* End HAVE_LCD_BITMAP */ #include "bookmark.h" #include "wps.h" #include "playback.h" #ifdef BOOTFILE #if !defined(USB_NONE) && !defined(USB_HANDLED_BY_OF) \ || defined(HAVE_HOTSWAP_STORAGE_AS_MAIN) #include "rolo.h" #endif #endif /* units used with output_dyn_value */ const unsigned char * const byte_units[] = { ID2P(LANG_BYTE), ID2P(LANG_KILOBYTE), ID2P(LANG_MEGABYTE), ID2P(LANG_GIGABYTE) }; const unsigned char * const * const kbyte_units = &byte_units[1]; /* Format a large-range value for output, using the appropriate unit so that * the displayed value is in the range 1 <= display < 1000 (1024 for "binary" * units) if possible, and 3 significant digits are shown. If a buffer is * given, the result is snprintf()'d into that buffer, otherwise the result is * voiced.*/ char *output_dyn_value(char *buf, int buf_size, int value, const unsigned char * const *units, bool bin_scale) { int scale = bin_scale ? 1024 : 1000; int fraction = 0; int unit_no = 0; char tbuf[5]; while (value >= scale) { fraction = value % scale; value /= scale; unit_no++; } if (bin_scale) fraction = fraction * 1000 / 1024; if (value >= 100 || !unit_no) tbuf[0] = '\0'; else if (value >= 10) snprintf(tbuf, sizeof(tbuf), "%01d", fraction / 100); else snprintf(tbuf, sizeof(tbuf), "%02d", fraction / 10); if (buf) { if (strlen(tbuf)) snprintf(buf, buf_size, "%d%s%s%s", value, str(LANG_POINT), tbuf, P2STR(units[unit_no])); else snprintf(buf, buf_size, "%d%s", value, P2STR(units[unit_no])); } else { talk_fractional(tbuf, value, P2ID(units[unit_no])); } return buf; } /* Ask the user if they really want to erase the current dynamic playlist * returns true if the playlist should be replaced */ bool warn_on_pl_erase(void) { if (global_settings.warnon_erase_dynplaylist && !global_settings.party_mode && playlist_modified(NULL)) { static const char *lines[] = {ID2P(LANG_WARN_ERASEDYNPLAYLIST_PROMPT)}; static const struct text_message message={lines, 1}; return (gui_syncyesno_run(&message, NULL, NULL) == YESNO_YES); } else return true; } /* Performance optimized version of the read_line() (see below) function. */ int fast_readline(int fd, char *buf, int buf_size, void *parameters, int (*callback)(int n, const char *buf, void *parameters)) { char *p, *next; int rc, pos = 0; int count = 0; while ( 1 ) { next = NULL; rc = read(fd, &buf[pos], buf_size - pos - 1); if (rc >= 0) buf[pos+rc] = '\0'; if ( (p = strchr(buf, '\r')) != NULL) { *p = '\0'; next = ++p; } else p = buf; if ( (p = strchr(p, '\n')) != NULL) { *p = '\0'; next = ++p; } rc = callback(count, buf, parameters); if (rc < 0) return rc; count++; if (next) { pos = buf_size - ((long)next - (long)buf) - 1; memmove(buf, next, pos); } else break ; } return 0; } /* parse a line from a configuration file. the line format is: name: value Any whitespace before setting name or value (after ':') is ignored. A # as first non-whitespace character discards the whole line. Function sets pointers to null-terminated setting name and value. Returns false if no valid config entry was found. */ bool settings_parseline(char* line, char** name, char** value) { char* ptr; line = skip_whitespace(line); if ( *line == '#' ) return false; ptr = strchr(line, ':'); if ( !ptr ) return false; *name = line; *ptr = 0; ptr++; ptr = skip_whitespace(ptr); *value = ptr; return true; } static void system_flush(void) { scrobbler_shutdown(); playlist_shutdown(); tree_flush(); call_storage_idle_notifys(true); /*doesnt work on usb and shutdown from ata thread */ } static void system_restore(void) { tree_restore(); scrobbler_init(); } static bool clean_shutdown(void (*callback)(void *), void *parameter) { #ifdef SIMULATOR (void)callback; (void)parameter; bookmark_autobookmark(false); call_storage_idle_notifys(true); exit(0); #else long msg_id = -1; int i; scrobbler_poweroff(); #if CONFIG_CHARGING && !defined(HAVE_POWEROFF_WHILE_CHARGING) if(!charger_inserted()) #endif { bool batt_safe = battery_level_safe(); int audio_stat = audio_status(); FOR_NB_SCREENS(i) { screens[i].clear_display(); screens[i].update(); } if (batt_safe) { #ifdef HAVE_TAGCACHE if (!tagcache_prepare_shutdown()) { cancel_shutdown(); splash(HZ, ID2P(LANG_TAGCACHE_BUSY)); return false; } #endif if (battery_level() > 10) splash(0, str(LANG_SHUTTINGDOWN)); else { msg_id = LANG_WARNING_BATTERY_LOW; splashf(0, "%s %s", str(LANG_WARNING_BATTERY_LOW), str(LANG_SHUTTINGDOWN)); } } else { msg_id = LANG_WARNING_BATTERY_EMPTY; splashf(0, "%s %s", str(LANG_WARNING_BATTERY_EMPTY), str(LANG_SHUTTINGDOWN)); } if (global_settings.fade_on_stop && (audio_stat & AUDIO_STATUS_PLAY)) { fade(false, false); } if (batt_safe) /* do not save on critical battery */ { #if defined(HAVE_RECORDING) && CONFIG_CODEC == SWCODEC if (audio_stat & AUDIO_STATUS_RECORD) { rec_command(RECORDING_CMD_STOP); /* wait for stop to complete */ while (audio_status() & AUDIO_STATUS_RECORD) sleep(1); } #endif bookmark_autobookmark(false); /* audio_stop_recording == audio_stop for HWCODEC */ audio_stop(); if (callback != NULL) callback(parameter); #if CONFIG_CODEC != SWCODEC /* wait for audio_stop or audio_stop_recording to complete */ while (audio_status()) sleep(1); #endif #if defined(HAVE_RECORDING) && CONFIG_CODEC == SWCODEC audio_close_recording(); #endif if(global_settings.talk_menu) { bool enqueue = false; if(msg_id != -1) { talk_id(msg_id, enqueue); enqueue = true; } talk_id(LANG_SHUTTINGDOWN, enqueue); #if CONFIG_CODEC == SWCODEC voice_wait(); #endif } system_flush(); #ifdef HAVE_EEPROM_SETTINGS if (firmware_settings.initialized) { firmware_settings.disk_clean = true; firmware_settings.bl_version = 0; eeprom_settings_store(); } #endif } #ifdef HAVE_DIRCACHE else dircache_disable(); #endif shutdown_hw(); } #endif return false; } bool list_stop_handler(void) { bool ret = false; /* Stop the music if it is playing */ if(audio_status()) { if (!global_settings.party_mode) { if (global_settings.fade_on_stop) fade(false, false); bookmark_autobookmark(true); audio_stop(); ret = true; /* bookmarking can make a refresh necessary */ } } #if CONFIG_CHARGING #if (CONFIG_KEYPAD == RECORDER_PAD) && !defined(HAVE_SW_POWEROFF) else { if (charger_inserted()) charging_splash(); else shutdown_screen(); /* won't return if shutdown actually happens */ ret = true; /* screen is dirty, caller needs to refresh */ } #endif #ifndef HAVE_POWEROFF_WHILE_CHARGING { static long last_off = 0; if (TIME_BEFORE(current_tick, last_off + HZ/2)) { if (charger_inserted()) { charging_splash(); ret = true; /* screen is dirty, caller needs to refresh */ } } last_off = current_tick; } #endif #endif /* CONFIG_CHARGING */ return ret; } #if CONFIG_CHARGING static bool waiting_to_resume_play = false; static long play_resume_tick; static void car_adapter_mode_processing(bool inserted) { if (global_settings.car_adapter_mode) { if(inserted) { /* * Just got plugged in, delay & resume if we were playing */ if (audio_status() & AUDIO_STATUS_PAUSE) { /* delay resume a bit while the engine is cranking */ play_resume_tick = current_tick + HZ*5; waiting_to_resume_play = true; } } else { /* * Just got unplugged, pause if playing */ if ((audio_status() & AUDIO_STATUS_PLAY) && !(audio_status() & AUDIO_STATUS_PAUSE)) { if (global_settings.fade_on_stop) fade(false, false); else audio_pause(); } waiting_to_resume_play = false; } } } static void car_adapter_tick(void) { if (waiting_to_resume_play) { if (TIME_AFTER(current_tick, play_resume_tick)) { if (audio_status() & AUDIO_STATUS_PAUSE) { queue_broadcast(SYS_CAR_ADAPTER_RESUME, 0); } waiting_to_resume_play = false; } } } void car_adapter_mode_init(void) { tick_add_task(car_adapter_tick); } #endif #ifdef HAVE_HEADPHONE_DETECTION static void unplug_change(bool inserted) { static bool headphone_caused_pause = false; if (global_settings.unplug_mode) { int audio_stat = audio_status(); if (inserted) { if ((audio_stat & AUDIO_STATUS_PLAY) && headphone_caused_pause && global_settings.unplug_mode > 1 ) audio_resume(); backlight_on(); headphone_caused_pause = false; } else { if ((audio_stat & AUDIO_STATUS_PLAY) && !(audio_stat & AUDIO_STATUS_PAUSE)) { headphone_caused_pause = true; audio_pause(); if (global_settings.unplug_rw) { if (audio_current_track()->elapsed > (unsigned long)(global_settings.unplug_rw*1000)) audio_ff_rewind(audio_current_track()->elapsed - (global_settings.unplug_rw*1000)); else audio_ff_rewind(0); } } } } } #endif long default_event_handler_ex(long event, void (*callback)(void *), void *parameter) { switch(event) { case SYS_BATTERY_UPDATE: if(global_settings.talk_battery_level) { talk_ids(true, VOICE_PAUSE, VOICE_PAUSE, LANG_BATTERY_TIME, TALK_ID(battery_level(), UNIT_PERCENT), VOICE_PAUSE); talk_force_enqueue_next(); } break; case SYS_USB_CONNECTED: if (callback != NULL) callback(parameter); #if (CONFIG_STORAGE & STORAGE_MMC) if (!mmc_touched() || (mmc_remove_request() == SYS_HOTSWAP_EXTRACTED)) #endif { system_flush(); #ifdef BOOTFILE #if !defined(USB_NONE) && !defined(USB_HANDLED_BY_OF) check_bootfile(false); /* gets initial size */ #endif #endif gui_usb_screen_run(); #ifdef BOOTFILE #if !defined(USB_NONE) && !defined(USB_HANDLED_BY_OF) check_bootfile(true); #endif #endif system_restore(); } return SYS_USB_CONNECTED; case SYS_POWEROFF: if (!clean_shutdown(callback, parameter)) return SYS_POWEROFF; break; #if CONFIG_CHARGING case SYS_CHARGER_CONNECTED: car_adapter_mode_processing(true); return SYS_CHARGER_CONNECTED; case SYS_CHARGER_DISCONNECTED: car_adapter_mode_processing(false); /*reset rockbox battery runtime*/ global_status.runtime = 0; return SYS_CHARGER_DISCONNECTED; case SYS_CAR_ADAPTER_RESUME: audio_resume(); return SYS_CAR_ADAPTER_RESUME; #endif #ifdef HAVE_HOTSWAP_STORAGE_AS_MAIN case SYS_FS_CHANGED: { /* simple sanity: assume rockbox is on the first hotswappable * driver, abort out if that one isn't inserted */ int i; for (i = 0; i < NUM_DRIVES; i++) { if (storage_removable(i) && !storage_present(i)) return SYS_FS_CHANGED; } system_flush(); check_bootfile(true); /* state gotten in main.c:init() */ system_restore(); } return SYS_FS_CHANGED; #endif #ifdef HAVE_HEADPHONE_DETECTION case SYS_PHONE_PLUGGED: unplug_change(true); return SYS_PHONE_PLUGGED; case SYS_PHONE_UNPLUGGED: unplug_change(false); return SYS_PHONE_UNPLUGGED; #endif #ifdef IPOD_ACCESSORY_PROTOCOL case SYS_IAP_PERIODIC: iap_periodic(); return SYS_IAP_PERIODIC; case SYS_IAP_HANDLEPKT: iap_handlepkt(); return SYS_IAP_HANDLEPKT; #endif } return 0; } long default_event_handler(long event) { return default_event_handler_ex(event, NULL, NULL); } int show_logo( void ) { #ifdef HAVE_LCD_BITMAP char version[32]; int font_h, font_w; snprintf(version, sizeof(version), "Ver. %s", appsversion); lcd_clear_display(); #if defined(SANSA_CLIP) || defined(SANSA_CLIPV2) || defined(SANSA_CLIPPLUS) /* display the logo in the blue area of the screen */ lcd_setfont(FONT_SYSFIXED); lcd_getstringsize((unsigned char *)"A", &font_w, &font_h); lcd_putsxy((LCD_WIDTH/2) - ((strlen(version)*font_w)/2), 0, (unsigned char *)version); lcd_bitmap(rockboxlogo, 0, 16, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo); #else lcd_bitmap(rockboxlogo, 0, 10, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo); lcd_setfont(FONT_SYSFIXED); lcd_getstringsize((unsigned char *)"A", &font_w, &font_h); lcd_putsxy((LCD_WIDTH/2) - ((strlen(version)*font_w)/2), LCD_HEIGHT-font_h, (unsigned char *)version); #endif lcd_setfont(FONT_UI); #else char *rockbox = " ROCKbox!"; lcd_clear_display(); lcd_double_height(true); lcd_puts(0, 0, rockbox); lcd_puts_scroll(0, 1, appsversion); #endif lcd_update(); #ifdef HAVE_REMOTE_LCD lcd_remote_clear_display(); lcd_remote_bitmap(remote_rockboxlogo, 0, 10, BMPWIDTH_remote_rockboxlogo, BMPHEIGHT_remote_rockboxlogo); lcd_remote_setfont(FONT_SYSFIXED); lcd_remote_getstringsize((unsigned char *)"A", &font_w, &font_h); lcd_remote_putsxy((LCD_REMOTE_WIDTH/2) - ((strlen(version)*font_w)/2), LCD_REMOTE_HEIGHT-font_h, (unsigned char *)version); lcd_remote_setfont(FONT_UI); lcd_remote_update(); #endif return 0; } #ifdef BOOTFILE #if !defined(USB_NONE) && !defined(USB_HANDLED_BY_OF) || defined(HAVE_HOTSWAP_STORAGE_AS_MAIN) /* memorize/compare details about the BOOTFILE we don't use dircache because it may not be up to date after USB disconnect (scanning in the background) */ void check_bootfile(bool do_rolo) { static unsigned short wrtdate = 0; static unsigned short wrttime = 0; DIR* dir = NULL; struct dirent* entry = NULL; /* 1. open BOOTDIR and find the BOOTFILE dir entry */ dir = opendir(BOOTDIR); if(!dir) return; /* do we want an error splash? */ /* loop all files in BOOTDIR */ while(0 != (entry = readdir(dir))) { if(!strcasecmp(entry->d_name, BOOTFILE)) { /* found the bootfile */ if(wrtdate && do_rolo) { if((entry->wrtdate != wrtdate) || (entry->wrttime != wrttime)) { static const char *lines[] = { ID2P(LANG_BOOT_CHANGED), ID2P(LANG_REBOOT_NOW) }; static const struct text_message message={ lines, 2 }; button_clear_queue(); /* Empty the keyboard buffer */ if(gui_syncyesno_run(&message, NULL, NULL) == YESNO_YES) rolo_load(BOOTDIR "/" BOOTFILE); } } wrtdate = entry->wrtdate; wrttime = entry->wrttime; } } closedir(dir); } #endif #endif /* check range, set volume and save settings */ void setvol(void) { const int min_vol = sound_min(SOUND_VOLUME); const int max_vol = sound_max(SOUND_VOLUME); if (global_settings.volume < min_vol) global_settings.volume = min_vol; if (global_settings.volume > max_vol) global_settings.volume = max_vol; sound_set_volume(global_settings.volume); global_status.last_volume_change = current_tick; settings_save(); } char* strrsplt(char* str, int c) { char* s = strrchr(str, c); if (s != NULL) { *s++ = '\0'; } else { s = str; } return s; } /* Test file existence, using dircache of possible */ bool file_exists(const char *file) { int fd; if (!file || strlen(file) <= 0) return false; #ifdef HAVE_DIRCACHE if (dircache_is_enabled()) return (dircache_get_entry_ptr(file) != NULL); #endif fd = open(file, O_RDONLY); if (fd < 0) return false; close(fd); return true; } bool dir_exists(const char *path) { DIR* d = opendir(path); if (!d) return false; closedir(d); return true; } /* * removes the extension of filename (if it doesn't start with a .) * puts the result in buffer */ char *strip_extension(char* buffer, int buffer_size, const char *filename) { char *dot = strrchr(filename, '.'); int len; if (buffer_size <= 0) { return NULL; } buffer_size--; /* Make room for end nil */ if (dot != 0 && filename[0] != '.') { len = dot - filename; len = MIN(len, buffer_size); } else { len = buffer_size; } strlcpy(buffer, filename, len + 1); return buffer; } #endif /* !defined(__PCTOOL__) */ /* Read (up to) a line of text from fd into buffer and return number of bytes * read (which may be larger than the number of bytes stored in buffer). If * an error occurs, -1 is returned (and buffer contains whatever could be * read). A line is terminated by a LF char. Neither LF nor CR chars are * stored in buffer. */ int read_line(int fd, char* buffer, int buffer_size) { int count = 0; int num_read = 0; errno = 0; while (count < buffer_size) { unsigned char c; if (1 != read(fd, &c, 1)) break; num_read++; if ( c == '\n' ) break; if ( c == '\r' ) continue; buffer[count++] = c; } buffer[MIN(count, buffer_size - 1)] = 0; return errno ? -1 : num_read; } char* skip_whitespace(char* const str) { char *s = str; while (isspace(*s)) s++; return s; } /* Format time into buf. * * buf - buffer to format to. * buf_size - size of buffer. * t - time to format, in milliseconds. */ void format_time(char* buf, int buf_size, long t) { if ( t < 3600000 ) { snprintf(buf, buf_size, "%d:%02d", (int) (t / 60000), (int) (t % 60000 / 1000)); } else { snprintf(buf, buf_size, "%d:%02d:%02d", (int) (t / 3600000), (int) (t % 3600000 / 60000), (int) (t % 60000 / 1000)); } } /** Open a UTF-8 file and set file descriptor to first byte after BOM. * If no BOM is present this behaves like open(). * If the file is opened for writing and O_TRUNC is set, write a BOM to * the opened file and leave the file pointer set after the BOM. */ #define BOM "\xef\xbb\xbf" #define BOM_SIZE 3 int open_utf8(const char* pathname, int flags) { int fd; unsigned char bom[BOM_SIZE]; fd = open(pathname, flags); if(fd < 0) return fd; if(flags & (O_TRUNC | O_WRONLY)) { write(fd, BOM, BOM_SIZE); } else { read(fd, bom, BOM_SIZE); /* check for BOM */ if(memcmp(bom, BOM, BOM_SIZE)) lseek(fd, 0, SEEK_SET); } return fd; } #ifdef HAVE_LCD_COLOR /* * Helper function to convert a string of 6 hex digits to a native colour */ static int hex2dec(int c) { return (((c) >= '0' && ((c) <= '9')) ? (c) - '0' : (toupper(c)) - 'A' + 10); } int hex_to_rgb(const char* hex, int* color) { int red, green, blue; int i = 0; while ((i < 6) && (isxdigit(hex[i]))) i++; if (i < 6) return -1; red = (hex2dec(hex[0]) << 4) | hex2dec(hex[1]); green = (hex2dec(hex[2]) << 4) | hex2dec(hex[3]); blue = (hex2dec(hex[4]) << 4) | hex2dec(hex[5]); *color = LCD_RGBPACK(red,green,blue); return 0; } #endif /* HAVE_LCD_COLOR */ #ifdef HAVE_LCD_BITMAP /* A simplified scanf - used (at time of writing) by wps parsing functions. fmt - char array specifying the format of each list option. Valid values are: d - int s - string (sets pointer to string, without copying) c - hex colour (RGB888 - e.g. ff00ff) g - greyscale "colour" (0-3) set_vals - if not NULL 1 is set in the bitplace if the item was read OK 0 if not read. first item is LSB, (max 32 items! ) Stops parseing if an item is invalid unless the item == '-' sep - list separator (e.g. ',' or '|') str - string to parse, must be terminated by 0 or sep ... - pointers to store the parsed values return value - pointer to char after parsed data, 0 if there was an error. */ /* '0'-'3' are ASCII 0x30 to 0x33 */ #define is0123(x) (((x) & 0xfc) == 0x30) const char* parse_list(const char *fmt, uint32_t *set_vals, const char sep, const char* str, ...) { va_list ap; const char* p = str, *f = fmt; const char** s; int* d; bool set, is_negative; int i=0; va_start(ap, str); if (set_vals) *set_vals = 0; while (*fmt) { /* Check for separator, if we're not at the start */ if (f != fmt) { if (*p != sep) goto err; p++; } set = false; switch (*fmt++) { case 's': /* string - return a pointer to it (not a copy) */ s = va_arg(ap, const char **); *s = p; while (*p && *p != sep) p++; set = (s[0][0]!='-') && (s[0][1]!=sep) ; break; case 'd': /* int */ is_negative = false; d = va_arg(ap, int*); if (*p == '-' && isdigit(*(p+1))) { is_negative = true; p++; } if (!isdigit(*p)) { if (!set_vals || *p != '-') goto err; while (*p && *p != sep) p++; } else { *d = *p++ - '0'; while (isdigit(*p)) *d = (*d * 10) + (*p++ - '0'); set = true; if (is_negative) *d *= -1; } break; #ifdef HAVE_LCD_COLOR case 'c': /* colour (rrggbb - e.g. f3c1a8) */ d = va_arg(ap, int*); if (hex_to_rgb(p, d) < 0) { if (!set_vals || *p != '-') goto err; while (*p && *p != sep) p++; } else { p += 6; set = true; } break; #endif #if LCD_DEPTH == 2 || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH == 2) case 'g': /* greyscale colour (0-3) */ d = va_arg(ap, int*); if (is0123(*p)) { *d = *p++ - '0'; set = true; } else if (!set_vals || *p != '-') goto err; else { while (*p && *p != sep) p++; } break; #endif default: /* Unknown format type */ goto err; break; } if (set_vals && set) *set_vals |= BIT_N(i); i++; } va_end(ap); return p; err: va_end(ap); return NULL; } /* only used in USB HID and set_time screen */ #if defined(USB_ENABLE_HID) || (CONFIG_RTC != 0) int clamp_value_wrap(int value, int max, int min) { if (value > max) return min; if (value < min) return max; return value; } #endif #endif