1 files changed, 614 insertions, 0 deletions

diff --git a/apps/radio/presets.c b/apps/radio/presets.c
new file mode 100644
index 0000000000..b996e68443
--- /dev/null
+++ b/apps/radio/presets.c
@@ -0,0 +1,614 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: radio.c -1   $
+ *
+ * Copyright (C) 2003 Linus Nielsen Feltzing
+ *
+ * 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 "config.h"
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include "settings.h"
+#include "general.h"
+#include "radio.h"
+#include "tuner.h"
+#include "file.h"
+#include "string-extra.h"
+#include "misc.h"
+#include "lang.h"
+#include "action.h"
+#include "list.h"
+#include "splash.h"
+#include "menu.h"
+#include "yesno.h"
+#include "keyboard.h"
+#include "talk.h"
+#include "filetree.h"
+#include "dir.h"
+
+static int curr_preset = -1;
+
+extern int curr_freq; /* from radio.c.. naughty but meh */
+extern int radio_mode;
+int snap_freq_to_grid(int freq);
+void remember_frequency(void);
+void talk_freq(int freq, bool enqueue);
+
+#define MAX_PRESETS 64
+static bool presets_loaded = false, presets_changed = false;
+static struct fmstation presets[MAX_PRESETS];
+
+static char filepreset[MAX_PATH]; /* preset filename variable */
+
+static int num_presets = 0; /* The number of presets in the preset list */
+
+bool yesno_pop(const char* text); /* radio.c */
+
+int radio_current_preset(void)
+{
+    return curr_preset;
+}
+int radio_preset_count(void)
+{
+    return num_presets;
+}
+const struct fmstation *radio_get_preset(int preset)
+{
+    return &presets[preset];
+}
+
+bool has_presets_changed(void)
+{
+    return presets_changed;
+}
+
+
+/* Find a matching preset to freq */
+int find_preset(int freq)
+{
+    int i;
+    if(num_presets < 1)
+        return -1;
+    for(i = 0;i < MAX_PRESETS;i++)
+    {
+        if(freq == presets[i].frequency)
+            return i;
+    }
+
+    return -1;
+}
+
+/* Return the closest preset encountered in the search direction with
+   wraparound. */
+int find_closest_preset(int freq, int direction)
+{
+    int i;
+    int lowpreset = 0;
+    int highpreset = 0;
+    int closest = -1;
+
+    if (direction == 0) /* direction == 0 isn't really used */
+        return 0;
+
+    for (i = 0; i < num_presets; i++)
+    {
+        int f = presets[i].frequency;
+        if (f == freq)
+            return i; /* Exact match = stop */
+        
+        /* remember the highest and lowest presets for wraparound */
+        if (f < presets[lowpreset].frequency)
+            lowpreset = i;
+        if (f > presets[highpreset].frequency)
+            highpreset = i;
+
+        /* find the closest preset in the given direction */
+        if (direction > 0 && f > freq)
+        {
+            if (closest < 0 || f < presets[closest].frequency)
+                closest = i;
+        }
+        else if (direction < 0 && f < freq)
+        {
+            if (closest < 0 || f > presets[closest].frequency)
+                closest = i;
+        }
+    }
+
+    if (closest < 0)
+    {
+        /* no presets in the given direction */
+        /* wrap around depending on direction */
+        if (direction < 0)
+            closest = highpreset;
+        else
+            closest = lowpreset;
+    }
+
+    return closest;
+}
+
+void next_preset(int direction)
+{
+    if (num_presets < 1)
+        return;
+
+    if (curr_preset == -1)
+        curr_preset = find_closest_preset(curr_freq, direction);
+    else
+        curr_preset = (curr_preset + direction + num_presets) % num_presets;
+
+    /* Must stay on the current grid for the region */
+    curr_freq = snap_freq_to_grid(presets[curr_preset].frequency);
+
+    tuner_set(RADIO_FREQUENCY, curr_freq);
+    remember_frequency();
+}
+
+void set_current_preset(int preset)
+{
+    curr_preset = preset;
+}
+
+/* Speak a preset by number or by spelling its name, depending on settings. */
+void talk_preset(int preset, bool fallback, bool enqueue)
+{
+    if (global_settings.talk_file == 1) /* number */
+        talk_number(preset + 1, enqueue);
+    else
+    { /* spell */
+        if(presets[preset].name[0])
+            talk_spell(presets[preset].name, enqueue);
+        else if(fallback)
+             talk_freq(presets[preset].frequency, enqueue);
+    }
+}
+
+
+void radio_save_presets(void)
+{
+    int fd;
+    int i;
+
+    fd = creat(filepreset, 0666);
+    if(fd >= 0)
+    {
+        for(i = 0;i < num_presets;i++)
+        {
+            fdprintf(fd, "%d:%s\n", presets[i].frequency, presets[i].name);
+        }
+        close(fd);
+
+        if(!strncasecmp(FMPRESET_PATH, filepreset, strlen(FMPRESET_PATH)))
+            set_file(filepreset, global_settings.fmr_file, MAX_FILENAME);
+        presets_changed = false;
+    }
+    else
+    {
+        splash(HZ, ID2P(LANG_FM_PRESET_SAVE_FAILED));
+    }
+}
+
+void radio_load_presets(char *filename)
+{
+    int fd;
+    int rc;
+    char buf[128];
+    char *freq;
+    char *name;
+    bool done = false;
+    int f;
+
+    memset(presets, 0, sizeof(presets));
+    num_presets = 0;
+
+    /* No Preset in configuration. */
+    if(filename[0] == '\0')
+    {
+        filepreset[0] = '\0';
+        return;
+    }
+    /* Temporary preset, loaded until player shuts down. */
+    else if(filename[0] == '/') 
+        strlcpy(filepreset, filename, sizeof(filepreset));
+    /* Preset from default directory. */
+    else
+        snprintf(filepreset, sizeof(filepreset), "%s/%s.fmr",
+            FMPRESET_PATH, filename);
+
+    fd = open_utf8(filepreset, O_RDONLY);
+    if(fd >= 0)
+    {
+        while(!done && num_presets < MAX_PRESETS)
+        {
+            rc = read_line(fd, buf, 128);
+            if(rc > 0)
+            {
+                if(settings_parseline(buf, &freq, &name))
+                {
+                    f = atoi(freq);
+                    if(f) /* For backwards compatibility */
+                    {
+                        struct fmstation * const fms = &presets[num_presets];
+                        fms->frequency = f;
+                        strlcpy(fms->name, name, MAX_FMPRESET_LEN+1);
+                        num_presets++;
+                    }
+                }
+            }
+            else
+                done = true;
+        }
+        close(fd);
+    }
+    else /* invalid file name? */
+        filepreset[0] = '\0';
+
+    presets_loaded = num_presets > 0;
+    presets_changed = false;
+}
+
+const char* radio_get_preset_name(int preset)
+{
+    if (preset < num_presets)
+        return presets[preset].name;
+    return NULL;
+}
+
+int radio_add_preset(void)
+{
+    char buf[MAX_FMPRESET_LEN + 1];
+
+    if(num_presets < MAX_PRESETS)
+    {
+        buf[0] = '\0';
+
+        if (!kbd_input(buf, MAX_FMPRESET_LEN + 1))
+        {
+            struct fmstation * const fms = &presets[num_presets];
+            strcpy(fms->name, buf);
+            fms->frequency = curr_freq;
+            num_presets++;
+            presets_changed = true;
+            presets_loaded = num_presets > 0;
+            return true;
+        }
+    }
+    else
+    {
+        splash(HZ, ID2P(LANG_FM_NO_FREE_PRESETS));
+    }
+    return false;
+}
+
+/* needed to know which preset we are edit/delete-ing */
+static int selected_preset = -1;
+static int radio_edit_preset(void)
+{
+    char buf[MAX_FMPRESET_LEN + 1];
+
+    if (num_presets > 0)
+    {
+        struct fmstation * const fms = &presets[selected_preset];
+
+        strcpy(buf, fms->name);
+
+        if (!kbd_input(buf, MAX_FMPRESET_LEN + 1))
+        {
+            strcpy(fms->name, buf);
+            presets_changed = true;
+        }
+    }
+
+    return 1;
+}
+
+static int radio_delete_preset(void)
+{
+    if (num_presets > 0)
+    {
+        struct fmstation * const fms = &presets[selected_preset];
+
+        if (selected_preset >= --num_presets)
+            selected_preset = num_presets - 1;
+
+        memmove(fms, fms + 1, (uintptr_t)(fms + num_presets) -
+                              (uintptr_t)fms);
+
+        if (curr_preset >= num_presets)
+            --curr_preset;
+    }
+
+     /* Don't ask to save when all presets are deleted. */
+    presets_changed = num_presets > 0;
+
+    if (!presets_changed)
+    {
+        /* The preset list will be cleared, switch to Scan Mode. */
+        radio_mode = RADIO_SCAN_MODE;
+        curr_preset = -1;
+        presets_loaded = false;
+    }
+
+    return 1;
+}
+
+int load_preset_list(void)
+{
+    return !rockbox_browse(FMPRESET_PATH, SHOW_FMR);
+}
+
+int save_preset_list(void)
+{
+    if(num_presets > 0)
+    { 
+        bool bad_file_name = true;
+
+        if(!dir_exists(FMPRESET_PATH)) /* Check if there is preset folder */
+            mkdir(FMPRESET_PATH);
+
+        create_numbered_filename(filepreset, FMPRESET_PATH, "preset",
+                                 ".fmr", 2 IF_CNFN_NUM_(, NULL));
+
+        while(bad_file_name)
+        {
+            if(!kbd_input(filepreset, sizeof(filepreset)))
+            {
+                /* check the name: max MAX_FILENAME (20) chars */
+                char* p2;
+                char* p1;
+                int len;
+                p1 = strrchr(filepreset, '/');
+                p2 = p1;
+                while((p1) && (*p2) && (*p2 != '.'))
+                    p2++;
+                len = (int)(p2-p1) - 1;
+                if((!p1) || (len > MAX_FILENAME) || (len == 0))
+                {
+                    /* no slash, too long or too short */
+                    splash(HZ, ID2P(LANG_INVALID_FILENAME));
+                }
+                else
+                {
+                    /* add correct extension (easier to always write)
+                       at this point, p2 points to 0 or the extension dot */
+                    *p2 = '\0';
+                    strcat(filepreset,".fmr");
+                    bad_file_name = false;
+                    radio_save_presets();
+                }
+            }
+            else
+            {
+                /* user aborted */
+                return false;
+            }
+        }
+    }
+    else
+        splash(HZ, ID2P(LANG_FM_NO_PRESETS));
+
+    return true;
+}
+
+int clear_preset_list(void)
+{
+    /* Clear all the preset entries */
+    memset(presets, 0, sizeof (presets));
+
+    num_presets = 0;
+    presets_loaded = false;
+    /* The preset list will be cleared switch to Scan Mode. */
+    radio_mode = RADIO_SCAN_MODE;
+    curr_preset = -1;
+    presets_changed = false; /* Don't ask to save when clearing the list. */
+
+    return true;
+}
+
+MENUITEM_FUNCTION(radio_edit_preset_item, MENU_FUNC_CHECK_RETVAL, 
+                    ID2P(LANG_FM_EDIT_PRESET), 
+                    radio_edit_preset, NULL, NULL, Icon_NOICON);
+MENUITEM_FUNCTION(radio_delete_preset_item, MENU_FUNC_CHECK_RETVAL,
+                    ID2P(LANG_FM_DELETE_PRESET), 
+                    radio_delete_preset, NULL, NULL, Icon_NOICON);
+static int radio_preset_callback(int action,
+                                 const struct menu_item_ex *this_item)
+{
+    if (action == ACTION_STD_OK)
+        action = ACTION_EXIT_AFTER_THIS_MENUITEM;
+    return action;
+    (void)this_item;
+}
+MAKE_MENU(handle_radio_preset_menu, ID2P(LANG_PRESET),
+            radio_preset_callback, Icon_NOICON, &radio_edit_preset_item, 
+            &radio_delete_preset_item);
+/* present a list of preset stations */
+static const char* presets_get_name(int selected_item, void *data,
+                                    char *buffer, size_t buffer_len)
+{
+    (void)data;
+    struct fmstation *p = &presets[selected_item];
+    if(p->name[0])
+        return p->name;
+    int freq = p->frequency / 10000;
+    int frac = freq % 100;
+    freq /= 100;
+    snprintf(buffer, buffer_len,
+             str(LANG_FM_DEFAULT_PRESET_NAME), freq, frac);
+    return buffer;
+}
+
+static int presets_speak_name(int selected_item, void * data)
+{
+    (void)data;
+    talk_preset(selected_item, true, false);
+    return 0;
+}
+
+int handle_radio_presets(void)
+{
+    struct gui_synclist lists;
+    int result = 0;
+    int action = ACTION_NONE;
+#ifdef HAVE_BUTTONBAR
+    struct gui_buttonbar buttonbar;
+#endif
+
+    if(presets_loaded == false)
+        return result;
+
+#ifdef HAVE_BUTTONBAR
+    gui_buttonbar_init(&buttonbar);
+    gui_buttonbar_set_display(&buttonbar, &(screens[SCREEN_MAIN]) );
+    gui_buttonbar_set(&buttonbar, str(LANG_FM_BUTTONBAR_ADD),
+                                 str(LANG_FM_BUTTONBAR_EXIT),
+                                 str(LANG_FM_BUTTONBAR_ACTION));
+    gui_buttonbar_draw(&buttonbar);
+#endif
+    gui_synclist_init(&lists, presets_get_name, NULL, false, 1, NULL);
+    gui_synclist_set_title(&lists, str(LANG_PRESET), NOICON);
+    gui_synclist_set_icon_callback(&lists, NULL);
+    if(global_settings.talk_file)
+        gui_synclist_set_voice_callback(&lists, presets_speak_name);
+    gui_synclist_set_nb_items(&lists, num_presets);
+    gui_synclist_select_item(&lists, curr_preset<0 ? 0 : curr_preset);
+    gui_synclist_speak_item(&lists);
+
+    while (result == 0)
+    {
+        gui_synclist_draw(&lists);
+        list_do_action(CONTEXT_STD, TIMEOUT_BLOCK,
+                       &lists, &action, LIST_WRAP_UNLESS_HELD);
+        switch (action)
+        {
+            case ACTION_STD_MENU:
+                if (radio_add_preset())
+                {
+                    gui_synclist_set_nb_items(&lists, num_presets);
+                    gui_synclist_select_item(&lists, num_presets - 1);
+        }
+                break;
+            case ACTION_STD_CANCEL:
+                result = 1;
+                break;
+            case ACTION_STD_OK:
+                curr_preset = gui_synclist_get_sel_pos(&lists);
+                curr_freq = presets[curr_preset].frequency;
+                next_station(0);
+                remember_frequency();
+                result = 1;
+                break;
+            case ACTION_F3:
+            case ACTION_STD_CONTEXT:
+                selected_preset = gui_synclist_get_sel_pos(&lists);
+                do_menu(&handle_radio_preset_menu, NULL, NULL, false);
+                gui_synclist_set_nb_items(&lists, num_presets);
+                gui_synclist_select_item(&lists, selected_preset);
+                gui_synclist_speak_item(&lists);
+                break;
+            default:
+                if(default_event_handler(action) == SYS_USB_CONNECTED)
+                    result = 2;
+        }
+    }
+    return result - 1;
+}
+
+
+int scan_presets(void *viewports)
+{
+    bool do_scan = true;
+    int i;
+    struct viewport *vp = (struct viewport *)viewports;
+
+    FOR_NB_SCREENS(i)
+        screens[i].set_viewport(vp?&vp[i]:NULL);
+    if(num_presets > 0) /* Do that to avoid 2 questions. */
+        do_scan = yesno_pop(ID2P(LANG_FM_CLEAR_PRESETS));
+
+    if(do_scan)
+    {
+        const struct fm_region_data * const fmr =
+            &fm_region_data[global_settings.fm_region];
+
+        curr_freq = fmr->freq_min;
+        num_presets = 0;
+        memset(presets, 0, sizeof(presets));
+
+        tuner_set(RADIO_MUTE, 1);
+
+        while(curr_freq <= fmr->freq_max)
+        {
+            int freq, frac;
+            if(num_presets >= MAX_PRESETS || action_userabort(TIMEOUT_NOBLOCK))
+                break;
+
+            freq = curr_freq / 10000;
+            frac = freq % 100;
+            freq /= 100;
+
+            splashf(0, str(LANG_FM_SCANNING), freq, frac);
+
+            if(tuner_set(RADIO_SCAN_FREQUENCY, curr_freq))
+            {
+                /* add preset */
+                presets[num_presets].name[0] = '\0';
+                presets[num_presets].frequency = curr_freq;
+                num_presets++;
+            }
+
+            curr_freq += fmr->freq_step;
+        }
+
+        if (get_radio_status() == FMRADIO_PLAYING)
+            tuner_set(RADIO_MUTE, 0);
+
+        presets_changed = true;
+
+        FOR_NB_SCREENS(i)
+        {
+            screens[i].clear_viewport();
+            screens[i].update_viewport();
+        }
+
+        if(num_presets > 0)
+        {
+            curr_freq = presets[0].frequency;
+            radio_mode = RADIO_PRESET_MODE;
+            presets_loaded = true;
+            next_station(0);
+        }
+        else
+        {
+            /* Wrap it to beginning or we'll be past end of band */
+            presets_loaded = false;
+            next_station(1);
+        }
+    }
+    return true;
+}
+
+
+void presets_save(void)
+{
+    if(filepreset[0] == '\0')
+        save_preset_list();
+    else
+        radio_save_presets();
+}