summaryrefslogtreecommitdiffstats
path: root/apps/radio/presets.c
blob: ea1d4022daa30ab646905f0639d5aec79f09c3dd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * 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();
}

#ifdef HAVE_LCD_BITMAP
static inline void draw_veritcal_line_mark(struct screen * screen,
                                           int x, int y, int h)
{
    screen->set_drawmode(DRMODE_COMPLEMENT);
    screen->vline(x, y, y+h-1);
}

/* draw the preset markers for a track of length "tracklen",
   between (x,y) and (x+w,y) */
void presets_draw_markers(struct screen *screen,
                          int x, int y, int w, int h)
{
    int i,xi;
    const struct fm_region_data *region_data =
            &(fm_region_data[global_settings.fm_region]);
    int len = region_data->freq_max - region_data->freq_min;
    for (i=0; i < radio_preset_count(); i++)
    {
        int freq = radio_get_preset(i)->frequency;
        int diff = freq - region_data->freq_min;
        xi = x + (w * diff)/len;
        draw_veritcal_line_mark(screen, xi, y, h);
    }
}
#endif