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
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Alan Korr & Nick Robinson
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
******************************************************************************/
#include "iap-core.h"
#include "iap-lingo.h"
#include "dir.h"
#include "settings.h"
#include "filetree.h"
#include "wps.h"
#include "playback.h"
#include "string-extra.h"
/*
* This macro is meant to be used inside an IAP mode message handler.
* It is passed the expected minimum length of the message buffer.
* If the buffer does not have the required lenght an ACK
* packet with a Bad Parameter error is generated.
*/
#define CHECKLEN(x) do { \
if (len < (x)) { \
cmd_ack(cmd, IAP_ACK_BAD_PARAM); \
return; \
}} while(0)
/* Check for authenticated state, and return an ACK Not
* Authenticated on failure.
*/
#define CHECKAUTH do { \
if (!DEVICE_AUTHENTICATED) { \
cmd_ack(cmd, IAP_ACK_NO_AUTHEN); \
return; \
}} while(0)
/* Used to remember the last Type and Record requested */
static char cur_dbrecord[5] = {0};
/* Used to remember the total number of filtered database records */
static unsigned long dbrecordcount = 0;
/* Used to remember the LAST playlist selected */
static unsigned long last_selected_playlist = 0;
static void cmd_ack(const unsigned int cmd, const unsigned char status)
{
IAP_TX_INIT4(0x04, 0x0001);
IAP_TX_PUT(status);
IAP_TX_PUT_U16(cmd);
iap_send_tx();
}
#define cmd_ok(cmd) cmd_ack((cmd), IAP_ACK_OK)
static void get_playlist_name(unsigned char *dest,
unsigned long item_offset,
size_t max_length)
{
if (item_offset == 0) return;
DIR* dp;
struct dirent* playlist_file = NULL;
dp = opendir(global_settings.playlist_catalog_dir);
char *extension;
unsigned long nbr = 0;
while ((nbr < item_offset) && ((playlist_file = readdir(dp)) != NULL))
{
/*Increment only if there is a playlist extension*/
if ((extension=strrchr(playlist_file->d_name, '.')) != NULL){
if ((strcmp(extension, ".m3u") == 0 ||
strcmp(extension, ".m3u8") == 0))
nbr++;
}
}
if (playlist_file != NULL) {
strmemccpy(dest, playlist_file->d_name, max_length);
}
closedir(dp);
}
static void seek_to_playlist(unsigned long index)
{
unsigned char selected_playlist
[sizeof(global_settings.playlist_catalog_dir)
+ 1
+ MAX_PATH] = {0};
strcpy(selected_playlist,
global_settings.playlist_catalog_dir);
int len = strlen(selected_playlist);
selected_playlist[len] = '/';
get_playlist_name (selected_playlist + len + 1,
index,
MAX_PATH);
ft_play_playlist(selected_playlist,
global_settings.playlist_catalog_dir,
strrchr(selected_playlist, '/') + 1);
}
static unsigned long nbr_total_playlists(void)
{
DIR* dp;
unsigned long nbr_total_playlists = 0;
struct dirent* playlist_file = NULL;
char *extension;
dp = opendir(global_settings.playlist_catalog_dir);
while ((playlist_file = readdir(dp)) != NULL)
{
/*Increment only if there is a playlist extension*/
if ((extension=strrchr(playlist_file->d_name, '.')) != NULL)
{
if ((strcmp(extension, ".m3u") == 0 ||
strcmp(extension, ".m3u8") == 0))
{
nbr_total_playlists++;
}
}
}
closedir(dp);
return nbr_total_playlists;
}
void iap_handlepkt_mode4(const unsigned int len, const unsigned char *buf)
{
unsigned int cmd = (buf[1] << 8) | buf[2];
/* Lingo 0x04 commands are at least 3 bytes in length */
CHECKLEN(3);
/* Lingo 0x04 must have been negotiated */
if (!DEVICE_LINGO_SUPPORTED(0x04)) {
#ifdef LOGF_ENABLE
logf("iap: Mode04 Not Negotiated");
#endif
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
return;
}
/* All these commands require extended interface mode */
if (interface_state != IST_EXTENDED) {
#ifdef LOGF_ENABLE
logf("iap: Not in Mode04 Extended Mode");
#endif
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
return;
}
switch (cmd)
{
case 0x0001: /* CmdAck. See above cmd_ack() */
/*
* The following is the description for the Apple Firmware
* The iPod sends this telegram to acknowledge the receipt of a
* command and return the command status. The command ID field
* indicates the device command for which the response is being
* sent. The command status indicates the results of the command
* (success or failure).
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x06 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x01 Command ID (bits 7:0)
* 6 0xNN Command result status. Possible values are:
* 0x00 = Success (OK)
* 0x01 = ERROR: Unknown database category
* 0x02 = ERROR: Command failed
* 0x03 = ERROR: Out of resources
* 0x04 = ERROR: Bad parameter
* 0x05 = ERROR: Unknown ID
* 0x06 = Reserved
* 0x07 = Accessory not authenticated
* 0x08 - 0xFF = Reserved
* 7 0xNN The ID of the command being acknowledged (bits 15:8).
* 8 0xNN The ID of the command being acknowledged (bits 7:0).
* 9 0xNN Telegram payload checksum byte
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0002: /* GetCurrentPlayingTrackChapterInfo */
/* The following is the description for the Apple Firmware
* Requests the chapter information of the currently playing track.
* In response, the iPod sends a
* Command 0x0003: ReturnCurrentPlayingTrackChapterInfo
* telegram to the device.
* Note: The returned track index is valid only when there is a
* currently playing or paused track.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x02 Command ID (bits 7:0)
* 6 0xF7 Telegram payload checksum byte
*
* We Return that the track does not have chapter information by
* returning chapter index -1 (0xFFFFFFFF) and chapter count 0
* (0x00000000)
*/
{
unsigned char data[] = {0x04, 0x00, 0x03,
0xFF, 0xFF, 0xFF, 0xFF,
0x00, 0x00, 0x00, 0x00};
iap_send_pkt(data, sizeof(data));
break;
}
case 0x0003: /* ReturnCurrentPlayingTrackChapterInfo. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the chapter information of the currently playing track.
* The iPod sends this telegramin response to the
* Command 0x0002: GetCurrentPlayingTrackChapterInfo
* telegram from the device. The track chapter information includes
* the currently playingtrack's chapter index,as well as the
* total number of chapters in the track. The track chapter and the
* total number of chapters are 32-bit signed integers. The chapter
* index of the firstchapter is always 0x00000000. If the track does
* not have chapter information, a chapter index of -1(0xFFFFFFFF)
* and a chapter count of 0 (0x00000000) are returned.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x0B Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x03 Command ID (bits 7:0)
* 6 0xNN Current chapter index (bits 31:24)
* 7 0xNN Current chapter index (bits 23:16)
* 8 0xNN Current chapter index (bits 15:8)
* 9 0xNN Current chapter index (bits 7:0)
* 10 0xNN Chapter count (bits 31:24)
* 11 0xNN Chapter count (bits 23:16)
* 12 0xNN Chapter count (bits 15:8)
* 13 0xNN Chapter count (bits 7:0)
* 14 0xNN Telegram payload checksum byte
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0004: /* SetCurrentPlayingTrackChapter */
/* The following is the description for the Apple Firmware
*
* Sets the currently playing track chapter.You can send the Command
* 0x0002: GetCurrentPlayingTrackChapterInfo telegram to get the
* chapter count and the index of the currently playing chapter in
* the current track. In response to the command
* SetCurrentPlayingTrackChapter, the iPod sends an ACK telegram
* with the command status.
*
* Note: This command should be used only when the iPod is in a
* playing or paused state. The command fails if the iPod is stopped
* or if the track does not contain chapter information.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x04 Command ID (bits 7:0)
* 6 0xNN Chapter index (bits 31:24)
* 7 0xNN Chapter index (bits 23:16)
* 8 0xNN Chapter index (bits 15:8)
* 9 0xNN Chapter index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
* We don't do anything with this as we don't support chapters,
* so just return BAD_PARAM
*/
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0005: /* GetCurrentPlayingTrackChapterPlayStatus */
/* The following is the description for the Apple Firmware
*
* Requests the chapter playtime status of the currently playing
* track. The status includes the chapter length and the time
* elapsed within that chapter. In response to a valid telegram, the
* iPod sends a Command 0x0006:
* ReturnCurrentPlayingTrackChapterPlayStatus telegram to the
* device.
*
* Note: If the telegram length or chapter index is invalid for
* instance, if the track does not contain chapter information the
* iPod responds with an ACK telegram including the specific error
* status.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x05 Command ID (bits 7:0)
* 6 0xNN Currently playingchapter index (bits31:24)
* 7 0xNN Currently playingchapter index (bits23:16)
* 8 0xNN Currently playing chapter index (bits 15:8)
* 9 0xNN Currently playing chapter index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
* The returned data includes 4 bytes for Chapter Length followed
* by 4 bytes of elapsed time If there is no currently playing
* chapter, length and elapsed are 0
* We don't do anything with this as we don't support chapters,
* so just return BAD_PARAM
*/
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0006: /* ReturnCurrentPlayingTrackChapterPlayStatus. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the play status of the currently playing track chapter.
* The iPod sends this telegram in response to the Command 0x0005:
* GetCurrentPlayingTrackChapterPlayStatus telegram from the device.
* The returned information includes the chapter length and elapsed
* time, in milliseconds. If there is no currently playing chapter,
* the chapter length and elapsed time are zero.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x0B Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x06 Command ID (bits 7:0)
* 6 0xNN Chapter length in milliseconds (bits 31:24)
* 7 0xNN Chapter length in milliseconds (bits 23:16)
* 8 0xNN Chapter length in milliseconds (bits 15:8)
* 9 0xNN Chapter length in milliseconds (bits 7:0)
* 10 0xNN Elapsed time in chapter, in milliseconds (bits 31:24)
* 11 0xNN Elapsed time in chapter, in milliseconds (bits 23:16)
* 12 0xNN Elapsed time in chapter, in milliseconds (bits 15:8)
* 13 0xNN Elapsed time in chapter, in milliseconds (bits 7:0)
* 14 0xNN Telegram payload checksum byte
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0007: /* GetCurrentPlayingTrackChapterName */
/* The following is the description for the Apple Firmware
*
* Requests a chapter name in the currently playing track. In
* response to a valid telegram, the iPod sends a Command 0x0008:
* ReturnCurrentPlayingTrackChapterName telegram to the device.
*
* Note: If the received telegram length or track index is invalid
* for instance, if the track does not have chapter information or
* is not a part of the Audiobook category, the iPod responds with
* an ACK telegram including the specific error status.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x07 Command ID (bits 7:0)
* 6 0xNN Chapter index (bits 31:24)
* 7 0xNN Chapter index (bits 23:16)
* 8 0xNN Chapter index (bits 15:8)
* 9 0xNN Chapter index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
* We don't do anything with this as we don't support chapters,
* so just return BAD_PARAM
*/
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0008: /* ReturnCurrentPlayingTrackChapterName. See Above */
/* The following is the description for the Apple Firmware
*
* Returns a chapter name in the currently playing track. The iPod
* sends this telegram in response to a valid Command 0x0007:
* GetCurrentPlayingTrackChapterName telegram from the
* device. The chapter name is encoded as a null-terminated UTF-8
* character array.
*
* Note: The chapter name string is not limited to 252 characters;
* it may be sent in small or large telegram format depending on
* the string length. The small telegram format is shown.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x08 Command ID (bits 7:0)
* 6-N 0xNN Chapter name as UTF-8 character array
*(last byte) 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0009: /* GetAudioBookSpeed */
/* The following is the description for the Apple Firmware
*
* Requests the current iPod audiobook speed state. The iPod
* responds with the “Command 0x000A: ReturnAudiobookSpeed”
* telegram indicating the current audiobook speed.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x09 Command ID (bits 7:0)
* 6 0xF0 Telegram payload checksum byte
*
* ReturnAudioBookSpeed
* 0x00 = Normal, 0xFF = Slow, 0x01 = Fast
* We always respond with Normal speed
*/
{
unsigned char data[] = {0x04, 0x00, 0x0A, 0x00};
iap_send_pkt(data, sizeof(data));
break;
}
case 0x000A: /* ReturnAudioBookSpeed. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the current audiobook speed setting. The iPod sends
* this telegram in response to the Command 0x0009:
* GetAudiobookSpeed command from the device.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x0A Command ID (bits 7:0)
* 6 0xNN Audiobook speed status code.
* 0xFF Slow (-1)
* 0x00 Normal
* 0x01 Fast (+1)
* 7 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x000B: /* SetAudioBookSpeed */
/* The following is the description for the Apple Firmware
* Sets the speed of audiobook playback. The iPod audiobook speed
* states are listed above. This telegram has two modes: one to
* set the speed of the currently playing audiobook and a second
* to set the audiobook speed for all audiobooks. Byte number 7
* is an optional byte; devices should not send this byte if they
* want to set the speed only of the currently playing audiobook.
* If devices want to set the global audiobook speed setting then
* they must use byte number 7. This is the Restore on Exit byte;
* a nonzero value restores the original audiobook speed setting
* when the accessory is detached. If this byte is zero, the
* audiobook speed setting set by the accessory is saved and
* persists after the accessory is detached from the iPod. See below
* for the telegram format used when including the Restore on Exit
* byte.
* In response to this command, the iPod sends an ACK telegram with
* the command status.
*
* Note: Accessory developers are encouraged to always use the
* Restore on Exit byte with a nonzero value, to restore any of the
* user's iPod settings that were modified by the accessory.
*
* Byte Value Meaning (Cuurent audiobook only
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x0B Command ID (bits 7:0)
* 6 0xNN New audiobook speed code.
* 7 0xNN Telegram payload checksum byte
*
*
* SetAudiobookSpeed telegram to set the global audiobook speed
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x05 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x0B Command ID (bits 7:0)
* 6 0xNN Global audiobook speed code.
* 7 0xNN Restore on Exit byte.
* If 1, the original setting is restored on detach;
* if 0, the newsetting persists after accessory detach.
* 8 0xNN Telegram payload checksum byte
*
*
* We don't do anything with this as we don't support chapters,
* so just return BAD_PARAM
*/
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x000C: /* GetIndexedPlayingTrackInfo */
/* The following is the description for the Apple Firmware
*
* Gets track information for the track at the specified index.
* The track info type field specifies the type of information to be
* returned, such as song lyrics, podcast name, episode date, and
* episode description. In response, the iPod sends the Command
* 0x000D: ReturnIndexedPlayingTrackInfo command with the requested
* track information. If the information type is invalid or does not
* apply to the selected track, the iPod returns an ACK with an
* error status.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x0A Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x0C Command ID (bits 7:0)
* 6 0xNN Track info type. See Below
* 7 0xNN Track index (bits 31:24)
* 8 0xNN Track index (bits 23:16)
* 9 0xNN Track index (bits 15:8)
* 10 0xNN Track index (bits 7:0)
* 11 0xNN Chapter index (bits 15:8)
* 12 0xNN Chapter index (bits 7:0)
* (last byte)0xNN Telegram payload checksum byte
*
* Track Info Types: Return Data
* 0x00 Track Capabilities. 10byte data
* 0x01 Podcast Name UTF-8 String
* 0x02 Track Release Date 7Byte Data All 0 if invalid
* 0x03 Track Description UTF-8 String
* 0x04 Track Song Lyrics UTF-8 String
* 0x05 Track Genre UTF-8 String
* 0x06 Track Composer UTF-8 String
* 0x07 Track Artwork Count 2byte formatID and 2byte count of images
* 0x08-0xff Reserved
*
* Track capabilities
* 0x00-0x03
* Bit0 is Audiobook
* Bit1 has chapters
* Bit2 has album art
* Bit3 has lyrics
* Bit4 is podcast episode
* Bit5 has Release Date
* Bit6 has Decription
* Bit7 Contains Video
* Bit8 Play as Video
* Bit9+ Reserved
* 0x04-0x07 Total Track Length in ms
* 0x08-0x09 Chapter Count
*
* Track Release Date Encoding
* 0x00 Seconds 0-59
* 0x01 Minutes 0-59
* 0x02 Hours 0-23
* 0x03 Day Of Month 1-31
* 0x04 Month 1-12
* 0x05 Year Bits 15:8 2006 = 2006AD
* 0x06 Year Bits 7:0
* 0x07 Weekday 0-6 where 0=Sunday 6=Saturday
*
*
*/
{
if (len < (10))
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
struct mp3entry *id3 = audio_current_track();
switch(buf[3])
{
case 0x01: /* Podcast Not Supported */
case 0x04: /* Lyrics Not Supported */
case 0x03: /* Description */
case 0x05: /* Genre */
case 0x06: /* Composer */
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
default:
{
IAP_TX_INIT4(0x04, 0x000D);
IAP_TX_PUT(buf[3]);
switch(buf[3])
{
case 0x00:
{
/* Track Capabilities 10Bytes Data */
IAP_TX_PUT_U32(0); /* Track Capabilities. */
/* Currently None Supported*/
IAP_TX_PUT_U32(id3->length); /* Track Length */
IAP_TX_PUT_U16(0x00); /* Chapter Count */
break;
}
case 0x02:
{
/* Track Release Date 7 Bytes Data
* Currently only returns a fixed value,
* Sunday 1st Feb 2011 3Hr 4Min 5Secs
*/
IAP_TX_PUT(5); /* Seconds 0-59 */
IAP_TX_PUT(4); /* Minutes 0-59 */
IAP_TX_PUT(3); /* Hours 0-23 */
IAP_TX_PUT(1); /* Day Of Month 1-31 */
IAP_TX_PUT(2); /* Month 1-12 */
IAP_TX_PUT_U16(2011); /* Year */
IAP_TX_PUT(0); /* Day 0=Sunday */
break;
}
case 0x07:
{
/* Track Artwork Count */
/* Currently not supported */
IAP_TX_PUT_U16(0x00); /* Format ID */
IAP_TX_PUT_U16(0x00); /* Image Count */
break;
}
}
iap_send_tx();
break;
}
}
break;
}
case 0x000D: /* ReturnIndexedPlayingTrackInfo. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the requested track information type and data. The iPod
* sends this command in response to the Command 0x000C:
* GetIndexedPlayingTrackInfo command.
* Data returned as strings are encoded as null-terminated UTF-8
* character arrays.
* If the track information string does not exist, a null UTF-8
* string is returned. If the track has no release date, then the
* returned release date has all bytes zeros. Track song lyrics and
* the track description are sent in a large or small telegram
* format with an incrementing packet index field, spanning
* multiple packets if needed.
*
* Below is the packet format for the
* ReturnIndexedPlayingTrackInfo telegram sent in response to a
* request for information types 0x00 to 0x02.
*
* Byte Value Meaning
* 0 0xFF Sync byte
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x0D Command ID (bits 7:0)
* 6 0xNN Track info type. See
* 7-N 0xNN Track information. The data format is specific
* to the track info type.
* NN 0xNN Telegram payload checksum byte
*
* Below is the large packet format for the
* ReturnIndexedPlayingTrackInfo telegram sent in response to a
* request for information types 0x03 to 0x04. The small telegram
* format is not shown.
*
* Byte Value Meaning
* 0 0xFF Sync byte
* 1 0x55 Start of telegram
* 2 0x00 Telegram payload marker (large format)
* 3 0xNN Large telegram payload length (bits 15:8)
* 4 0xNN Large telegram payload length (bits 7:0)
* 5 0x04 Lingo ID (Extended Interface lingo)
* 6 0x00 Command ID (bits 15:8)
* 7 0x0D Command ID (bits 7:0)
* 8 0xNN Track info type.
* 9 0xNN Packet information bits. If set,
* these bits have the following meanings:
* Bit 0: Indicates that there are multiple packets.
* Bit 1: This is the last packet. Applicable only if
* bit 0 is set.
* Bit 31:2 Reserved
* 10 0xNN Packet Index (bits 15:8)
* 11 0xNN Packet Index (bits 7:0)
* 12-N 0xNN Track information as a UTF-8 string.
* NN 0xNN Telegram payload checksum byte
*
* Track info types and return data
* Info Type Code Data Format
* 0x00 Track Capabilities and Information 10-byte data.
* 0x01 PodcastName UTF-8 string
* 0x02 Track Release Date 7-byte data.
* 0x03 Track Description UTF-8 string
* 0x04 Track Song Lyrics UTF-8 string
* 0x05 TrackGenre UTF-8 string
* 0x06 Track Composer UTF-8 string
* 0x07 Track Artwork Count Artwork count data. The
* artwork count is a sequence of 4-byte records; each record
* consists of a 2-byte format ID value followed by a 2-byte
* count of images in that format for this track. For more
* information about formatID and chapter index values, see
* commands 0x000E-0x0011 and 0x002A-0x002B.
* 0x08-0xFF Reserved
*
* Track Capabilities and Information encoding
* Byte Code
* 0x00-0x03 Track Capability bits. If set, these bits have the
* following meanings:
* Bit 0: Track is audiobook
* Bit 1: Track has chapters
* Bit 2: Track has album artwork
* Bit 3: Track has song lyrics
* Bit 4: Track is a podcast episode
* Bit 5: Track has release date
* Bit 6: Track has description
* Bit 7: Track contains video (a video podcast, music
* video, movie, or TV show)
* Bit 8: Track is currently queued to play as a video
* Bit 31:9: Reserved
* 0x04 Total track length, in milliseconds (bits 31:24)
* 0x05 Total track length, in milliseconds (bits 23:16)
* 0x06 Total track length, in milliseconds (bits 15:8)
* 0x07 Total track length, in milliseconds (bits 7:0)
* 0x08 Chapter count (bits 15:8)
* 0x09 Chapter count (bits 7:0)
*
* Track Release Date encoding
* Byte Code
* 0x00 Seconds (0-59)
* 0x01 Minutes (0-59)
* 0x02 Hours (0-23)
* 0x03 Day of themonth(1-31)
* 0x04 Month (1-12)
* 0x05 Year (bits 15:8). For example, 2006 signifies the year 2006
* 0x06 Year (bits 7:0)
* 0x07 Weekday (0-6, where 0 = Sunday and 6 = Saturday)
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x000E: /* GetArtworkFormats */
/* The following is the description for the Apple Firmware
*
* The device sends this command to obtain the list of supported
* artwork formats on the iPod. No parameters are sent.
*
* Byte Value Comment
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Length of packet
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x0E Command ID (bits 7:0)
* 6 0xEB Checksum/
*
* Returned Artwork Formats are a 7byte record.
* formatID:2
* pixelFormat:1
* width:2
* height:2
*/
{
unsigned char data[] = {0x04, 0x00, 0x0F,
0x04, 0x04, /* FormatID */
0x02, /* PixelFormat*/
0x00, 0x64, /* 100 pixels */
0x00, 0x64, /* 100 pixels */
0x04, 0x05, /* FormatID */
0x02, /* PixelFormat*/
0x00, 0xC8, /* 200 pixels */
0x00, 0xC8 /* 200 pixels */
};
iap_send_pkt(data, sizeof(data));
break;
}
case 0x000F: /* RetArtworkFormats. See Above */
/* The following is the description for the Apple Firmware
*
* The iPod sends this command to the device, giving it the list
* of supported artwork formats. Each format is described in a
* 7-byte record (formatID:2, pixelFormat:1, width:2, height:2).
* The formatID is used when sending GetTrackArtworkTimes.
* The device may return zero records.
*
* Byte Value Comment
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Length of packet
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x0F Command ID (bits 7:0)
* NN 0xNN formatID (15:8) iPod-assigned value for this format
* NN 0xNN formatID (7:0)
* NN 0xNN pixelFormat. Same as from SetDisplayImage
* NN 0xNN imageWidth(15:8).Number of pixels widefor eachimage.
* NN 0xNN imageWidth (7:0)
* NN 0xNN imageHeight (15:8). Number of pixels high for each
* NN 0xNN imageHeight (7:0). image
* Previous 7 bytes may be repeated NN times
* NN 0xNN Checksum
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0010: /* GetTrackArtworkData */
/* The following is the description for the Apple Firmware
* The device sends this command to the iPod to request data for a
* given trackIndex, formatID, and artworkIndex. The time offset
* from track start is the value returned by GetTrackArtworkTimes
*
* Byte Value Comment
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x0D Length of packet
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x10 Command ID (bits 7:0)
* 6 0xNN trackIndex (31:24).
* 7 0xNN trackIndex(23:16)
* 8 0xNN trackIndex (15:8)
* 9 0xNN trackIndex (7:0)
* 10 0xNN formatID (15:8)
* 11 0xNN formatID (7:0)
* 12 0xNN time offset from track start, in ms (31:24)
* 13 0xNN time offset from track start, in ms (23:16)
* 14 0xNN time offset from track start, in ms (15:8)
* 15 0xNN time offset from track start, in ms (7:0)
* 16 0xNN Checksum
*
* Returned data is
* DescriptorTelegramIndex: 2
* pixelformatcode: 1
* ImageWidthPixels: 2
* ImageHeightPixels: 2
* InsetRectangleTopLeftX: 2
* InsetRectangleTopLeftY: 2
* InsetRectangleBotRightX: 2
* InsetRectangleBotRightY: 2
* RowSizeInBytes: 4
* ImagePixelData:VariableLength
* Subsequent packets omit bytes 8 - 24
*/
{
unsigned char data[] = {0x04, 0x00, 0x11,
0x00, 0x00, /* DescriptorIndex */
0x00, /* PixelFormat */
0x00, 0x00, /* ImageWidthPixels*/
0x00, 0x00, /* ImageHeightPixels*/
0x00, 0x00, /* InsetRectangleTopLeftX*/
0x00, 0x00, /* InsetRectangleTopLeftY*/
0x00, 0x00, /* InsetRectangleBotRightX*/
0x00, 0x00, /* InsetRectangleBotRoghtY*/
0x00, 0x00, 0x00, 0x00,/* RowSize*/
0x00 /* ImagePixelData Var Length*/
};
iap_send_pkt(data, sizeof(data));
break;
}
case 0x0011: /* RetTrackArtworkData. See Abobe */
/* The following is the description for the Apple Firmware
*
* The iPod sends the requested artwork to the accessory. Multiple
* RetTrackArtworkData commands may be necessary to transfer all
* the data because it will be too much to fit into a single packet.
* This command uses nearly the same format as the SetDisplayImage
* command (command 0x0032). The only difference is the addition
* of 2 coordinates; they define an inset rectangle that describes
* any padding that may have been added to the image. The
* coordinates consist of two x,y pairs. Each x or y value is 2
* bytes, so the total size of the coordinate set is 8 bytes.
*
* Byte Value Comment
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Length of packet
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x11 Command ID (bits 7:0)
* 6 0x00 Descriptor telegram index (15:8).
* These fields uniquely identify each packet in the
* RetTrackArtworkData transaction. The first telegram
* is the descriptor telegram, which always starts with
* an index of 0x0000.
* 7 0x00 Descriptor telegram index (7:0)
* 8 0xNN Display pixel format code.
* 9 0xNN Imagewidth in pixels (15:8)
* 10 0xNN Image width in pixels (7:0)
* 11 0xNN Image height in pixels (15:8)
* 12 0xNN Image height in pixels (7:0)
* 13 0xNN Inset rectangle, top-left point, x value (15:8)
* 14 0xNN Inset rectangle, top-left point, x value (7:0)
* 15 0xNN Inset rectangle, top-left point, y value (15:8)
* 16 0xNN Inset rectangle, top-left point, y value (7:0)
* 17 0xNN Inset rectangle,bottom-rightpoint,xvalue(15:8)
* 18 0xNN Inset rectangle,bottom-rightpoint, x value(7:0)
* 19 0xNN Inset rectangle,bottom-rightpoint,y value(15:8)
* 20 0xNN Inset rectangle, bottom-right point, y value(7:0)
* 21 0xNN Rowsize in bytes (31:24)
* 22 0xNN Rowsize in bytes (23:16)
* 23 0xNN Row size in bytes (15:8)
* 24 0xNN Row size in bytes (7:0)
* 25-NN 0xNN Image pixel data (variable length)
* NN 0xNN Checksum
*
* In subsequent packets in the sequence, bytes 8 through 24 are
* omitted.
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0012: /* RequestProtocolVersion */
/* The following is the description for the Apple Firmware
*
* This command is deprecated.
*
* Requests the version of the running protocol from the iPod.
* The iPod responds with a Command 0x0013:ReturnProtocolVersion
* command.
*
* Note: This command requests the Extended Interface protocol
* version, not the iPod software version.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x12 Command ID (bits 7:0)
* 6 0xE7 Telegram payload checksum byte
*
*/
{
IAP_TX_INIT4(0x04, 0x0013);
IAP_TX_PUT(LINGO_MAJOR(0x04));
IAP_TX_PUT(LINGO_MINOR(0x04));
iap_send_tx();
break;
}
case 0x0013: /* ReturnProtocolVersion. See Above */
/* The following is the description for the Apple Firmware
* This command is deprecated.
* Sent from the iPod to the device
* Returns the iPod Extended Interface protocol version number.
* The iPod sends this command in response to the Command 0x0012:
* RequestProtocolVersion command from the device. The major
* version number specifies the protocol version digits to the left
* of the decimal point; the minor version number specifies the
* digits to the right of the decimal point. For example, a major
* version number of 0x01 and a minor version number of 0x08
* represents an Extended Interface protocol version of 1.08. This
* protocol information is also available through the General lingo
* (lingo 0x00) command RequestLingoProtocolVersion when passing
* lingo 0x04 as the lingo parameter.
*
* Note: This command returns the Extended Interface protocol
* version, not the iPod software version.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x05 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x13 Command ID (bits 7:0)
* 6 0xNN Protocol major version number
* 7 0xNN Protocol minor version number
* 8 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0014: /* RequestiPodName */
/* The following is the description for the Apple Firmware
* This command is deprecated.
* Retrieves the name of the iPod
*
* Returns the name of the user's iPod or 'iPod' if the iPod name
* is undefined. This allows the iPod name to be shown in the
* human-machineinterface(HMI) of the interfacingbody. The iPod
* responds with the Command 0x0015: ReturniPodName command
* containing the iPod name text string.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x14 Command ID (bits 7:0)
* 6 0xE5 Telegram payload checksum byte
*
* We return ROCKBOX, should this be definable?
* Should it be Volume Name?
*/
{
IAP_TX_INIT4(0x04, 0x0015);
IAP_TX_PUT_STRING("ROCKBOX");
iap_send_tx();
break;
}
case 0x0015: /* ReturniPodName. See Above */
/* The following is the description for the Apple Firmware
* This command is deprecated.
* Sent from the iPod to the device
*
* The iPod sends this command in response to the Command 0x0014:
* RequestiPodName telegram from the device. The iPod name is
* encoded as a null-terminated UTF-8 character array. The iPod
* name string is not limited to 252 characters; it may be sent
* in small or large telegram format. The small telegram format
* is shown.
*
* Note: Starting with version 1.07 of the Extended Interface lingo,
* the ReturniPodName command on Windows-formatted iPods returns the
* iTunes name of the iPod instead of the Windows volume name.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x15 Command ID (bits 7:0)
* 6-N 0xNN iPod name as UTF-8 character array
* NN 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0016: /* ResetDBSelection */
/* The following is the description for the Apple Firmware
*
* Resets the current database selection to an empty state and
* invalidates the category entry count that is, sets the count
* to 0, for all categories except the playlist category. This is
* analogous to pressing the Menu button repeatedly to get to the
* topmost iPod HMI menu. Any previously selected database items
* are deselected. The command has no effect on the playback engine
* In response, the iPod sends an ACK telegram with the command
* status. Once the accessory has reset the database selection,
* it must initialize the category count before it can select
* database records. Please refer to Command 0x0018:
* GetNumberCategorizedDBRecords and Command 0x0017:
* SelectDBRecord for details.
*
* Note: Starting with protocol version 1.07, the ResetDBSelection
* command clears the sort order.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x16 Command ID (bits 7:0)
* 6 0xE3 Telegram payload checksum byte
*
*
* Reset the DB Record Type
* Hierarchy is as follows
* All = 0
* Playlist = 1
* Artist = 2
* Album = 3
* Genre = 4
* Tracks = 5
* Composers = 6
* Audiobooks = 7
* Podcasts = 8
*
*/
{
cur_dbrecord[0] = 0;
put_u32(&cur_dbrecord[1],0);
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x0017: /* SelectDBRecord */
/* The following is the description for the Apple Firmware
* Selects one or more records in the Database Engine, based on a
* category relative index. For example, selecting category two
* (artist) and record index one results in a list of selected
* tracks (or database records) from the second artist in the
* artist list.
* Selections are additive and limited by the category hierarchy;
* Subsequent selections are made based on the subset of records
* resulting from the previous selections and not from the entire
* database.
* Note that the selection of a single record automatically passes
* it to the Playback Engine and starts its playback. Record indices
* consist of a 32-bit signed integer. To select database records
* with a specific sort order, use
* Command 0x0038: SelectSortDBRecord
* SelectDBRecord should be called only once a category count has
* been initialized through a call to Command 0x0018:
* GetNumberCategorizedDBRecords. Without a valid category count,
* the SelectDBRecord call cannot select a database record and will
* fail with a command failed ACK. Accessories that make use of
* Command 0x0016: ResetDBSelection must always initialize the
* category count before selecting a new database record using
* SelectDBRecord.
* Accessories should pay close attention to the ACK returned by the
* SelectDBRecord command. Ignoring errors may cause unexpected
* behavior.
* To undo a database selection, send the SelectDBRecord telegram
* with the current category selected in theDatabase Engine and a
* record index of -1 (0xFFFFFFFF). This has the same effect as
* pressing the iPod Menu button once and moves the database
* selection up to the next highest menu level. For example, if a
* device selected artist number three and then album number one,
* it could use the SelectDBRecord(Album, -1) telegram to return
* to the database selection of artist number three. If multiple
* database selections have been made, devices can use any of the
* previously used categories to return to the next highest database
* selection. If the category used in one of these SelectDBRecord
* telegrams has not been used in a previous database selection
* then the command is treated as a no-op.
* Sending a SelectDBRecord telegram with the Track category and a
* record index of -1 is invalid, because the previous database
* selection made with the Track category and a valid index passes
* the database selection to the Playback Engine.
* Sending a SelectDBRecord(Track, -1) telegram returns a parameter
* error. The iPod also returns a bad parameter error ACK when
* devices send the SelectDBRecord telegram with an invalid category
* type, or with the Track category and an index greater than the
* total number of tracks available on the iPod.
*
* Note: Selecting a podcast always selects from the main podcast
* library regardless of the current category context of the iPod.
*
* To immediately go to the topmost iPod menu level and reset all
* database selections, send the ResetDBSelection telegram to the
* iPod.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x08 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x17 Command ID (bits 7:0)
* 6 0xNN Database category type. See
* 7 0xNN Database record index (bits 31:24)
* 8 0xNN Database record index (bits 23:16)
* 9 0xNN Database record index (bits 15:8)
* 10 0xNN Database record index (bits 7:0)
* 11 0xNN Telegram payload checksum byte
*
* The valid database categories are listed below
*
* Category Code Protocol version
* Reserved 0x00 N/A
* Playlist 0x01 1.00
* Artist 0x02 1.00
* Album 0x03 1.00
* Genre 0x04 1.00
* Track 0x05 1.00
* Composer 0x06 1.00
* Audiobook0x07 1.06
* Podcast 0x08 1.08
* Reserved 0x09+ N/A
*
* cur_dbrecord[0] is the record type
* cur_dbrecord[1-4] is the u32 of the record number requested
* which might be a playlist or a track number depending on
* the value of cur_dbrecord[0]
*/
{
memcpy(cur_dbrecord, buf + 3, 5);
int paused = !!(audio_status() & AUDIO_STATUS_PAUSE);
uint32_t index;
uint32_t trackcount;
index = get_u32(&cur_dbrecord[1]);
trackcount = playlist_amount();
if ((cur_dbrecord[0] == 5) && (index > trackcount))
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
if ((cur_dbrecord[0] == 1) && (index > (nbr_total_playlists() + 1)))
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
audio_pause();
switch (cur_dbrecord[0])
{
case 0x01: /* Playlist*/
{
if (index != 0x00) /* 0x00 is the On-The-Go Playlist and
we do nothing with it */
{
last_selected_playlist = index;
audio_skip(-iap_get_trackindex());
seek_to_playlist(last_selected_playlist);
}
break;
}
case 0x02: /* Artist */
case 0x03: /* Album */
case 0x04: /* Genre */
case 0x05: /* Track */
case 0x06: /* Composer */
{
audio_skip(index - playlist_next(0));
break;
}
default:
{
/* We don't do anything with the other selections.
* YET.
*/
break;
}
}
if (!paused)
audio_resume();
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x0018: /* GetNumberCategorizedDBRecords */
/* The following is the description for the Apple Firmware
*
* Retrieves the number of records in a particular database
* category.
* For example, a device can get the number of artists or albums
* present in the database. The category types are described above.
* The iPod responds with a Command 0x0019:
* ReturnNumberCategorizedDBRecords telegram indicating the number
* of records present for this category.
* GetNumberCategorizedDBRecords must be called to initialize the
* category count before selecting a database record using Command
* 0x0017: SelectDBRecord or Command 0x0038: SelectSortDBRecord
* commands. A category’s record count can change based on the prior
* categories selected and the database hierarchy. The accessory
* is expected to call GetNumberCategorizedDBRecords in order to
* get the valid range of category entries before selecting a
* record in that category.
*
* Note: The record count returned by this command depends on the
* database state before this command is sent. If the database has
* been reset using Command 0x0016: ResetDBSelection this command
* returns the total number of records for a given category.
* However, if this command is sent after one or more categories
* are selected, the record count is the subset of records that are
* members of all the categories selected prior to this command.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x18 Command ID (bits 7:0)
* 6 0xNN Database category type. See above
* 7 0xNN Telegram payload checksum byte
*
* This is the actual number of available records for that category
* some head units (Alpine CDE-103BT) use this command before
* requesting records and then hang if not enough records are
* returned.
*/
{
unsigned char data[] = {0x04, 0x00, 0x19,
0x00, 0x00, 0x00, 0x00};
switch(buf[3]) /* type number */
{
case 0x01: /* total number of playlists */
dbrecordcount = nbr_total_playlists() + 1;
break;
case 0x05: /* total number of Tracks */
case 0x02: /* total number of Artists */
case 0x03: /* total number of Albums */
/* We don't sort on the above but some Head Units
* require at least one to exist so we just return
* the number of tracks in the playlist. */
dbrecordcount = playlist_amount();
break;
case 0x04: /* total number of Genres */
case 0x06: /* total number of Composers */
case 0x07: /* total number of AudioBooks */
case 0x08: /* total number of Podcasts */
/* We don't support the above so just return that
there are none available. */
dbrecordcount = 0;
break;
}
put_u32(&data[3], dbrecordcount);
iap_send_pkt(data, sizeof(data));
break;
}
case 0x0019: /* ReturnNumberCategorizedDBRecords. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the number of database records matching the specified
* database category. The iPod sends this telegram in response to
* the Command 0x0018: GetNumberCategorizedDBRecords telegram from
* the device. Individual records can then be extracted by sending
* Command 0x001A: RetrieveCategorizedDatabaseRecords to the iPod.
* If no matching database records are found, a record count of
* zero is returned. Category types are described above.
* After selecting the podcast category, the number of artist,
* album, composer, genre, and audiobook records is always zero.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x19 Command ID (bits 7:0)
* 6 0xNN Database record count (bits 31:24)
* 7 0xNN Database record count (bits 23:16)
* 8 0xNN Database record count (bits 15:8)
* 9 0xNN Database record count (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x001A: /* RetrieveCategorizedDatabaseRecords */
/* The following is the description for the Apple Firmware
*
* Retrieves one or more database records from the iPod,
* typically based on the results from the Command 0x0018:
* GetNumberCategorizedDBRecords query. The database
* category types are described above. This telegram
* specifies the starting record index and the number of
* records to retrieve (the record count). This allows a device
* to retrieve an individual record or the entire set of records
* for a category. The record start index and record count consist
* of 32-bit signed integers. To retrieve all records from a given
* starting record index, set the record count to -1 (0xFFFFFFFF).
* The iPod responds to this telegram with a separate Command
* 0x001B: ReturnCategorizedDatabaseRecord telegram FOR EACH record
* matching the specified criteria (category and record index
* range).
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x0C Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x1A Command ID (bits 7:0)
* 6 0xNN Database category type. See above
* 7 0xNN Database record start index (bits 31:24)
* 8 0xNN Database record start index (bits 23:16)
* 9 0xNN Database record start index (bits 15:8)
* 10 0xNN Database record start index (bits 7:0)
* 11 0xNN Database record read count (bits 31:24)
* 12 0xNN Database record read count (bits 23:16)
* 13 0xNN Database record read count (bits 15:8)
* 14 0xNN Database record read count (bits 7:0)
* 15 0xNN Telegram payload checksum byte
* The returned data
* contains information for a single database record. The iPod sends
* one or more of these telegrams in response to the Command 0x001A:
* RetrieveCategorizedDatabaseRecords telegram from the device. The
* category record index is included to allow the device to
* determine which record has been sent. The record data is sent as
* a null-terminated UTF-8 encoded data array.
*/
{
unsigned char data[7 + MAX_PATH] =
{0x04, 0x00, 0x1B, 0x00, 0x00, 0x00, 0x00,
'O','n','-','T','h','e','-','G','o','\0'};
struct playlist_track_info track;
struct mp3entry id3;
unsigned long start_index = get_u32(&buf[4]);
unsigned long read_count = get_u32(&buf[8]);
unsigned long counter = 0;
unsigned int number_of_playlists = nbr_total_playlists();
uint32_t trackcount;
trackcount = playlist_amount();
if ((buf[3] == 0x05) && ((start_index + read_count ) > trackcount))
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
if ((buf[3] == 0x01) && ((start_index + read_count) > (number_of_playlists + 1)))
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
for (counter=0;counter<read_count;counter++)
{
switch(buf[3]) /* type number */
{
case 0x01: /* Playlists */
get_playlist_name(data +7,start_index+counter, MAX_PATH);
/*Remove file extension*/
char *dot=NULL;
dot = (strrchr(data+7, '.'));
if (dot != NULL)
*dot = '\0';
break;
case 0x05: /* Tracks */
case 0x02: /* Artists */
case 0x03: /* Albums */
case 0x04: /* Genre */
case 0x06: /* Composer */
playlist_get_track_info(NULL, start_index + counter,
&track);
iap_get_trackinfo(start_index + counter, &id3);
switch(buf[3])
{
case 0x05:
strmemccpy((char *)&data[7], id3.title,64);
break;
case 0x02:
strmemccpy((char *)&data[7], id3.artist,64);
break;
case 0x03:
strmemccpy((char *)&data[7], id3.album,64);
break;
case 0x04:
case 0x06:
strmemccpy((char *)&data[7], "Not Supported",14);
break;
}
break;
}
put_u32(&data[3], start_index+counter);
iap_send_pkt(data, 7 + strlen(data+7) + 1);
yield();
}
break;
}
case 0x001B: /* ReturnCategorizedDatabaseRecord. See Above */
/* The following is the description for the Apple Firmware
*
* Contains information for a single database record. The iPod sends
* ONE OR MORE of these telegrams in response to the Command 0x001A:
* RetrieveCategorizedDatabaseRecords telegram from the device. The
* category record index is included to allow the device to
* determine which record has been sent. The record data is sent
* as a null-terminated UTF-8 encoded data array.
*
* Note: The database record string is not limited to 252 characters
* it may be sent in small or large telegram format, depending on
* the record size. The small telegram format is shown.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x1B Command ID (bits 7:0)
* 6 0xNN Database record category index (bits 31:24)
* 7 0xNN Database record category index (bits 23:16)
* 8 0xNN Database record category index (bits 15:8)
* 9 0xNN Database record category index (bits 7:0)
* 10-N 0xNN Database record as a UTF-8 character array.
* NN 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x001C: /* GetPlayStatus */
/* The following is the description for the Apple Firmware
*
* Requests the current iPod playback status, allowing the
* device to display feedback to the user. In response, the
* iPod sends a Command 0x001D: ReturnPlayStatus telegram
* with the current playback status.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x1C Command ID (bits 7:0)
* 6 0xDD Telegram payload checksum byte
*
*/
{
unsigned char data[] = {0x04, 0x00, 0x1D,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00};
struct mp3entry *id3 = audio_current_track();
unsigned long time_total = id3->length;
unsigned long time_elapsed = id3->elapsed;
int status = audio_status();
put_u32(&data[3], time_total);
put_u32(&data[7], time_elapsed);
if (status == AUDIO_STATUS_PLAY)
data[11] = 0x01; /* play */
else if (status & AUDIO_STATUS_PAUSE)
data[11] = 0x02; /* pause */
iap_send_pkt(data, sizeof(data));
break;
}
case 0x001D: /* ReturnPlayStatus. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the current iPod playback status. The iPod sends this
* telegram in response to the Command 0x001C: GetPlayStatus
* telegram from the device. The information returned includes the
* current track length, track position, and player state.
*
* Note: The track length and track position fields are valid only
* if the player state is Playing or Paused. For other player
* states, these fields should be ignored.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x0C Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x1D Command ID (bits 7:0)
* 6 0xNN Track length in milliseconds (bits 31:24)
* 7 0xNN Track length in milliseconds (bits 23:16)
* 8 0xNN Track length in milliseconds (bits 15:8)
* 9 0xNN Track length in milliseconds (bits 7:0)
* 10 0xNN Track position in milliseconds (bits 31:24)
* 11 0xNN Track position in milliseconds (bits 23:16)
* 12 0xNN Track position in milliseconds (bits 15:8)
* 13 0xNN Track position in milliseconds (bits 7:0)
* 14 0xNN Player state. Possible values are:
* 0x00 = Stopped
* 0x01 = Playing
* 0x02 = Paused
* 0x03 - 0xFE = Reserved
* 0xFF = Error
* 15 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x001E: /* GetCurrentPlayingTrackIndex */
/* The following is the description for the Apple Firmware
*
* Requests the playback engine index of the currently playing
* track. In response, the iPod sends a Command 0x001F:
* ReturnCurrentPlayingTrackIndex telegram to the device.
*
* Note: The track index returned is valid only if there is
* currently a track playing or paused.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x1E Command ID (bits 7:0)
* 6 0xDB Telegram payload checksum byte
*
*/
{
unsigned char data[] = {0x04, 0x00, 0x1F,
0xFF, 0xFF, 0xFF, 0xFF};
long playlist_pos = playlist_next(0);
int status = audio_status();
playlist_pos -= playlist_get_first_index(NULL);
if(playlist_pos < 0)
playlist_pos += playlist_amount();
if ((status == AUDIO_STATUS_PLAY) || (status & AUDIO_STATUS_PAUSE))
put_u32(&data[3], playlist_pos);
iap_send_pkt(data, sizeof(data));
break;
}
case 0x001F: /* ReturnCurrentPlayingTrackIndex. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the playback engine index of the current playing track in
* response to the Command 0x001E: GetCurrentPlayingTrackIndex
* telegram from the device. The track index is a 32-bit signed
* integer.
* If there is no track currently playing or paused, an index of -1
* (0xFFFFFFFF) is returned.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x1F Command ID (bits 7:0)
* 6 0xNN Playback track index (bits 31:24)
* 7 0xNN Playback track index (bits 23:16)
* 8 0xNN Playback track index (bits 15:8)
* 9 0xNN Playback track index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0020: /* GetIndexedPlayingTrackTitle. See 0x0024 below */
/* The following is the description for the Apple Firmware
*
* Requests the title name of the indexed playing track from the
* iPod. In response to a valid telegram, the iPod sends a
* Command 0x0021: ReturnIndexedPlayingTrackTitle telegram to the
* device.
*
* Note: If the telegram length or playing track index is invalid,
* the iPod responds with an ACK telegram including the specific
* error status.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x20 Command ID (bits 7:0)
* 6 0xNN Playback track index (bits 31:24)
* 7 0xNN Playback track index (bits 23:16)
* 8 0xNN Playback track index (bits 15:8)
* 9 0xNN Playback track index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
*/
case 0x0021: /* ReturnIndexedPlayingTrackTitle. See 0x0024 Below */
/* The following is the description for the Apple Firmware
*
* Returns the title of the indexed playing track in response to
* a valid Command 0x0020 GetIndexedPlayingTrackTitle telegram from
* the device. The track title is encoded as a null-terminated UTF-8
* character array.
*
* Note: The track title string is not limited to 252 characters;
* it may be sent in small or large telegram format, depending on
* the string length. The small telegram format is shown.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x21 Command ID (bits 7:0)
* 6-N 0xNN Track title as a UTF-8 character array
* NN 0xNN Telegram payload checksum byte
*
*/
case 0x0022: /* GetIndexedPlayingTrackArtistName. See 0x0024 Below */
/* The following is the description for the Apple Firmware
*
* Requests the name of the artist of the indexed playing track
* In response to a valid telegram, the iPod sends a
* Command 0x0023: ReturnIndexedPlayingTrackArtistName telegram to
* the device.
*
* Note: If the telegram length or playing track index is invalid,
* the iPod responds with an ACK telegram including the specific
* error status.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x22 Command ID (bits 7:0)
* 6 0xNN Playback track index (bits 31:24)
* 7 0xNN Playback track index (bits 23:16)
* 8 0xNN Playback track index (bits 15:8)
* 9 0xNN Playback track index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
*/
case 0x0023: /* ReturnIndexedPlayingTrackArtistName. See 0x0024 Below */
/* The following is the description for the Apple Firmware
*
* Returns the artist name of the indexed playing track in response
* to a valid Command 0x0022 GetIndexedPlayingTrackArtistName
* telegram from the device. The track artist name is encoded as a
* null-terminated UTF-8 character array.
*
* Note: The artist name string is not limited to 252 characters;
* it may be sent in small or large telegram format, depending on
* the string length. The small telegram format is shown.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x23 Command ID (bits 7:0)
* 6-N 0xNN Track Artist as a UTF-8 character array
* NN 0xNN Telegram payload checksum byte
*
*/
case 0x0024: /* GetIndexedPlayingTrackAlbumName AND
* GetIndexedPlayingTrackTitle AND
* AND GetIndexedPlayingTrackArtistName. */
/* The following is the description for the Apple Firmware
*
* Requests the album name of the indexed playing track
* In response to a valid telegram, the iPod sends a
* Command 0x0025: ReturnIndexedPlayingTrackAlbumName telegram to
* the device.
*
* Note: If the telegram length or playing track index is invalid,
* the iPod responds with an ACK telegram including the specific
* error status.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x24 Command ID (bits 7:0)
* 6 0xNN Playback track index (bits 31:24)
* 7 0xNN Playback track index (bits 23:16)
* 8 0xNN Playback track index (bits 15:8)
* 9 0xNN Playback track index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
*/
{
unsigned char data[70] = {0x04, 0x00, 0xFF};
struct mp3entry id3;
size_t len;
long tracknum = get_u32(&buf[3]);
data[2] = cmd + 1;
memcpy(&id3, audio_current_track(), sizeof(id3));
tracknum += playlist_get_first_index(NULL);
if(tracknum >= playlist_amount())
tracknum -= playlist_amount();
/* If the tracknumber is not the current one,
read id3 from disk */
if(playlist_next(0) != tracknum)
{
struct playlist_track_info info;
playlist_get_track_info(NULL, tracknum, &info);
/* memset(&id3, 0, sizeof(struct mp3entry)); --get_metadata does this for us */
get_metadata(&id3, -1, info.filename);
}
/* Return the requested track data */
switch(cmd)
{
case 0x20:
len = strlcpy((char *)&data[3], id3.title, 64);
iap_send_pkt(data, 4+len);
break;
case 0x22:
len = strlcpy((char *)&data[3], id3.artist, 64);
iap_send_pkt(data, 4+len);
break;
case 0x24:
len = strlcpy((char *)&data[3], id3.album, 64);
iap_send_pkt(data, 4+len);
break;
}
break;
}
case 0x0025: /* ReturnIndexedPlayingTrackAlbumName. See 0x0024 Above */
/* The following is the description for the Apple Firmware
*
* Returns the album name of the indexed playing track in response
* to a valid Command 0x0024 GetIndexedPlayingTrackAlbumName
* telegram from the device. The track artist name is encoded as a
* null-terminated UTF-8 character array.
*
* Note: The album name string is not limited to 252 characters;
* it may be sent in small or large telegram format, depending on
* the string length. The small telegram format is shown.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x25 Command ID (bits 7:0)
* 6-N 0xNN Track Album as a UTF-8 character array
* NN 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0026: /* SetPlayStatusChangeNotification */
/* The following is the description for the Apple Firmware
* Sets the state of play status change notifications from the iPod
* to the device. Notification of play status changes can be
* globally enabled or disabled. If notifications are enabled, the
* iPod sends a Command 0x0027: PlayStatusChangeNotification
* telegram to the device each time the play status changes, until
* the device sends this telegram again with the disable
* notification option. In response, the iPod sends an ACK telegram
* indicating the status of the SetPlayStatusChangeNotification
* command.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x26 Command ID (bits 7:0)
* 6 0xNN The state of play status change notifications.
* Possible values are:
* 0x00 = Disable all change notification
* 0x01 = Enable all change notification
* 0x02 - 0xFF = Reserved
* 7 0xNN Telegram payload checksum byte
*/
{
device.do_notify = buf[3] ? true : false;
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x0027: /* PlayStatusChangeNotification */
/* This response is handled by iap_track_changed() and iap_periodic()
* within iap-core.c
* The following is the description for the Apple Firmware
*
* The iPod sends this telegram to the device when the iPod play status
* changes, if the device has previously enabled notifications using
* Command 0x0026: SetPlayStatusChangeNotification . This telegram
* contains details about the new play status. Notification telegrams
* for changes in track position occur approximately every 500
* milliseconds while the iPod is playing. Notification telegrams are
* sent from the iPod until the device sends the
* SetPlayStatusChangeNotification telegram with the option to disable
* all notifications.
* Some notifications include additional data about the new play status.
*
* PlayStatusChangeNotification telegram: notifications 0x00, 0x02, 0x03
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x27 Command ID (bits 7:0)
* 6 0xNN New play status. See Below.
* 7 0xNN Telegram payload checksum byte
*
* Play Status Change Code Extended Status Data (if
* any)
* Playback stopped 0x00 None
* Playback track changed 0x01 New track record index
* (32 bits)
* Playback forward seek stop 0x02 None
* Playback backward seek stop 0x03 None
* Playback track position 0x04 New track position in
* milliseconds (32 bits)
* Playback chapter changed 0x05 New chapter index (32
* bits)
* Reserved 0x06 - 0xFF N/A
*
* Playback track changed (code 0x01)
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x08 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x27 Command ID (bits 7:0)
* 6 0x01 New status: Playback track changed
* 7 0xNN New playback track index (bits 31:24)
* 8 0xNN New playback track index (bits 23:16)
* 9 0xNN New playback track index (bits 15:8)
* 10 0xNN New playback track index (bits 7:0)
* 11 0xNN Telegram payload checksum byte
*
* Playback track position changed (code 0x04)
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x08 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x27 Command ID (bits 7:0)
* 6 0x04 New status: Playback track position changed
* 7 0xNN New track position in milliseconds (bits 31:24)
* 8 0xNN New track position in milliseconds (bits 23:16)
* 9 0xNN New track position in milliseconds (bits 15:8)
* 10 0xNN New track position in milliseconds (bits 7:0)
* 11 0xNN Telegram payload checksum byte
*
* Playback chapter changed (code 0x05)
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x08 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x27 Command ID (bits 7:0)
* 6 0x05 New status: Playback chapter changed
* 7 0xNN New track chapter index (bits 31:24)
* 8 0xNN New track chapter index (bits 23:16)
* 9 0xNN New track chapter index (bits 15:8)
* 10 0xNN New track chapter index (bits 7:0)
* 11 0xNN Telegram payload checksum byte
*
*/
case 0x0028: /* PlayCurrentSelection */
/* The following is the description for the Apple Firmware
*
* Requests playback of the currently selected track or list of
* tracks. The currently selected tracks are placed in the Now
* Playing playlist, where they are optionally shuffled (if the
* shuffle feature is enabled). Finally, the specified track record
* index is passed to the player to play. Note that if the track
* index is -1(0xFFFFFFFF), the first track after the shuffle is
* complete is played first. If a track index of n is sent, the nth
* track of the selected tracks is played first, regardless of
* where it is located in the Now Playing playlist after the shuffle
* is performed (assuming that shuffle is on). In response, the iPod
* sends an ACK telegram indicating the status of the command.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x28 Command ID (bits 7:0)
* 6 0xNN Selection track record index (bits 31:24)
* 7 0xNN Selection track record index (bits 23:16)
* 8 0xNN Selection track record index (bits 15:8)
* 9 0xNN Selection track record index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
*/
{
int paused = !!(audio_status() & AUDIO_STATUS_PAUSE);
uint32_t index;
uint32_t trackcount;
index = get_u32(&buf[3]);
trackcount = playlist_amount();
if (index >= trackcount)
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
audio_pause();
if(global_settings.playlist_shuffle)
{
playlist_randomise(NULL, current_tick, true);
}
else
{
playlist_sort(NULL, true);
}
audio_skip(index - playlist_next(0));
if (!paused)
audio_resume();
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x0029: /* PlayControl */
{
/* The following is the description for the Apple Firmware
*
* Sets the new play state of the iPod. The play control command
* codes are shown below. In response, the iPod sends an ACK
* telegram indicating the status of the command.
*
* Note: If a remote device requests the Next or Previous Chapter
* for a track that does not contain chapters, the iPod returns a
* command failed ACK.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x29 Command ID (bits 7:0)
* 6 0xNN Play control command code.
* 7 0xNN Telegram payload checksum byte
*
* Play Control Command Code Protocol version
* Reserved 0x00 N/A
* Toggle Play/Pause 0x01 1.00
* Stop 0x02 1.00
* Next Track 0x03 1.00
* Previous Track 0x04 1.00
* StartFF 0x05 1.00
* StartRew 0x06 1.00
* EndFFRew 0x07 1.00
* NextChapter 0x08 1.06
* Previous Chapter 0x09 1.06
* Reserved 0x0A - 0xFF
*
*/
switch(buf[3])
{
case 0x01: /* play/pause */
iap_remotebtn = BUTTON_RC_PLAY;
iap_repeatbtn = 2;
break;
case 0x02: /* stop */
iap_remotebtn = BUTTON_RC_PLAY|BUTTON_REPEAT;
iap_repeatbtn = 2;
break;
case 0x03: /* skip++ */
iap_remotebtn = BUTTON_RC_RIGHT;
iap_repeatbtn = 2;
break;
case 0x04: /* skip-- */
iap_remotebtn = BUTTON_RC_LEFT;
iap_repeatbtn = 2;
break;
case 0x05: /* ffwd */
iap_remotebtn = BUTTON_RC_RIGHT;
break;
case 0x06: /* frwd */
iap_remotebtn = BUTTON_RC_LEFT;
break;
case 0x07: /* end ffwd/frwd */
iap_remotebtn = BUTTON_NONE;
break;
}
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x002A: /* GetTrackArtworkTimes */
/* The following is the description for the Apple Firmware
*
* The device sends this command to the iPod to request the list of
* artwork time locations for a track. A 4-byte track Index
* specifies which track from the Playback Engine is to be selected.
* A 2-byte formatID indicates which type of artwork is desired.
* The 2-byte artworkIndex specifies at which index to begin
* searching for artwork. A value of 0 indicates that the iPod
* should start with the first available artwork.
* The 2-byte artworkCount specifies the maximum number of times
* (artwork locations) to be returned. A value of -1 (0xFFFF)
* indicates that there is no preferred limit. Note that podcasts
* may have a large number of associated images.
*
* Byte Value Comment
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x0D Length of packet
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x2A Command ID (bits 7:0)
* 6 0xNN trackIndex(31:24)
* 7 0xNN trackIndex(23:16)
* 8 0xNN trackIndex (15:8)
* 9 0xNN trackIndex (7:0)
* 10 0xNN formatID (15:8)
* 11 0xNN formatID (7:0)
* 12 0xNN artworkIndex (15:8)
* 13 0xNN artworkIndex (7:0)
* 14 0xNN artworkCount (15:8)
* 15 0xNN artworkCount (7:0)
* 16 0xNN Checksum
*
*/
{
unsigned char data[] = {0x04, 0x00, 0x2B,
0x00, 0x00, 0x00, 0x00};
iap_send_pkt(data, sizeof(data));
break;
}
case 0x002B: /* ReturnTrackArtworkTimes. See Above */
/* The following is the description for the Apple Firmware
*
* The iPod sends this command to the device to return the list of
* artwork times for a given track. The iPod returns zero or more
* 4-byte times, one for each piece of artwork associated with the
* track and format specified by GetTrackArtworkTimes.
* The number of records returned will be no greater than the number
* specified in the GetTrackArtworkTimes command. It may however, be
* less than requested. This can happen if there are fewer pieces of
* artwork available than were requested, or if the iPod is unable
* to place the full number in a single packet. Check the number of
* records returned against the results of
* RetIndexedPlayingTrackInfo with infoType 7 to ensure that all
* artwork has been received.
*
* Byte Value Comment
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Length of packet
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x2B Command ID (bits 7:0)
* 6 0xNN time offset from track start in ms (31:24)
* 7 0xNN time offset from track start in ms (23:16)
* 8 0xNN time offset from track start in ms (15:8)
* 9 0xNN time offset from track start in ms (7:0)
* Preceding 4 bytes may be repeated NN times
* NN 0xNN Checksum
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x002C: /* GetShuffle */
{
/* The following is the description for the Apple Firmware
*
* Requests the current state of the iPod shuffle setting. The iPod
* responds with the Command0x002D: ReturnShuffle telegram.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x2C Command ID (bits 7:0)
* 6 0xCD Telegram payload checksum byte
*
*/
unsigned char data[] = {0x04, 0x00, 0x2D,
0x00};
data[3] = global_settings.playlist_shuffle ? 1 : 0;
iap_send_pkt(data, sizeof(data));
break;
}
case 0x002D: /* ReturnShuffle. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the current state of the shuffle setting. The iPod sends
* this telegram in response to the Command 0x002C: GetShuffle
* telegram from the device.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x2D Command ID (bits 7:0)
* 6 0xNN Shuffle mode. See Below.
* 7 0xNN Telegram payload checksum byte
*
* Possible values of the shufflemode.
* Value Meaning
* 0x00 Shuffle off
* 0x01 Shuffle tracks
* 0x02 Shuffle albums
* 0x03 – 0xFF Reserved
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x002E: /* SetShuffle */
{
/* The following is the description for the Apple Firmware
*
* Sets the iPod shuffle mode. The iPod shuffle modes are listed
* below. In response, the iPod sends an ACK telegram with the
* command status.
* This telegram has an optional byte, byte 0x07, called the
* RestoreonExit byte. This byte can be used to restore the
* original shuffle setting in use when the accessory was attached
* to the iPod. A non zero value restores the original shuffle
* setting of the iPod when the accessory is detached. If this byte
* is zero, the shuffle setting set by the accessory overwrites the
* original setting and persists after the accessory is detached
* from the iPod.
* Accessory engineers should note that the shuffle mode affects
* items only in the playback engine. The shuffle setting does not
* affect the order of tracks in the database engine, so calling
* Command 0x001A: RetrieveCategorizedDatabaseRecords on a database
* selection with the shuffle mode set returns a list of unshuffled
* tracks. To get the shuffled playlist, an accessory must query the
* playback engine by calling Command 0x0020
* GetIndexedPlayingTrackTitle.
* Shuffling tracks does not affect the track index, just the track
* at that index. If an unshuffled track at playback index 1 is
* shuffled, a new track is placed into index 1. The playback
* indexes themselves are not shuffled.
* When shuffle mode is enabled, tracks that are marked 'skip when
* shuffling' are filtered from the database selection. This affects
* all audiobooks and all tracks that the user has marked in iTunes.
* It also affects all podcasts unless their default 'skip when
* shuffling' markings have been deliberately removed. To apply the
* filter to the playback engine, the accessory should send
* Command 0x0017: SelectDBRecord or
* Command 0x0028: PlayCurrentSelection after enabling shuffle mode.
*
* Note: Accessory developers are encouraged to always use the
* Restore on Exit byte with a nonzero value to restore any settings
* modified by the accessory upon detach.
*
* SetShuffle telegram with Restore on Exit byte
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x05 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x2E Command ID (bits 7:0)
* 6 0xNN New shuffle mode. See above .
* 7 0xNN Restore on Exit byte. If 1, the orig setting is
* restored on detach; if 0, the newsetting persists
* after accessory detach.
* 8 0xNN Telegram payload checksum byte
*
* SetShuffle setting persistent after the accessory detach.
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x2E Command ID (bits 7:0)
* 6 0xNN New shuffle mode. See above.
* 7 0xNN Telegram payload checksum byte
*
*/
if(buf[3] && !global_settings.playlist_shuffle)
{
global_settings.playlist_shuffle = 1;
settings_save();
if (audio_status() & AUDIO_STATUS_PLAY)
playlist_randomise(NULL, current_tick, true);
}
else if(!buf[3] && global_settings.playlist_shuffle)
{
global_settings.playlist_shuffle = 0;
settings_save();
if (audio_status() & AUDIO_STATUS_PLAY)
playlist_sort(NULL, true);
}
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x002F: /* GetRepeat */
{
/* The following is the description for the Apple Firmware
*
* Requests the track repeat state of the iPod. In response, the
* iPod sends a Command 0x0030: ReturnRepeat telegram
* to the device.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x2F Command ID (bits 7:0)
* 6 0xCA Telegram payload checksum byte
*
*/
unsigned char data[] = {0x04, 0x00, 0x30, 0x00};
if(global_settings.repeat_mode == REPEAT_OFF)
data[3] = 0;
else if(global_settings.repeat_mode == REPEAT_ONE)
data[3] = 1;
else
data[3] = 2;
iap_send_pkt(data, sizeof(data));
break;
}
case 0x0030: /* ReturnRepeat. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the current iPod track repeat state to the device.
* The iPod sends this telegram in response to the Command
* 0x002F:GetRepeat command.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x30 Command ID (bits 7:0)
* 6 0xNN Repeat state. See Below.
* 7 0xNN Telegram payload checksum byte
*
* Repeat state values
* Value Meaning
* 0x00 Repeat off
* 0x01 Repeat one track
* 0x02 Repeat all tracks
* 0x03 - 0xFF Reserved
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0031: /* SetRepeat */
{
/* The following is the description for the Apple Firmware
*
* Sets the repeat state of the iPod. The iPod track repeat modes
* are listed above. In response, the iPod sends an ACK telegram
* with the command status.
*
* This telegram has an optional byte, byte 0x07, called the
* RestoreonExitbyte. This byte can be used to restore the original
* repeat setting in use when the accessory was attached to the
* iPod. A nonzero value restores the original repeat setting of
* the iPod when the accessory is detached. If this byte is zero,
* the repeat setting set by the accessory overwrites the original
* setting and persists after the accessory is detached from the
* iPod.
*
* Note: Accessory developers are encouraged to always use the
* Restore on Exit byte with a nonzero value to restore any
* settings modified by the accessory upon detach.
*
* SetRepeat telegram with Restore on Exit byte
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x05 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x31 Command ID (bits 7:0)
* 6 0xNN New repeat state. See above.
* 7 0xNN Restore on Exit byte. If 1, the original setting is
* restored on detach; if 0, the newsetting persists
* after accessory detach.
* 8 0xNN Telegram payload checksum byte
*
* SetRepeat setting persistent after the accessory detach.
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x31 Command ID (bits 7:0)
* 6 0xNN New repeat state. See above.
* 7 0xNN Telegram payload checksum byte
*
*/
int oldmode = global_settings.repeat_mode;
if (buf[3] == 0)
global_settings.repeat_mode = REPEAT_OFF;
else if (buf[3] == 1)
global_settings.repeat_mode = REPEAT_ONE;
else if (buf[3] == 2)
global_settings.repeat_mode = REPEAT_ALL;
if (oldmode != global_settings.repeat_mode)
{
settings_save();
if (audio_status() & AUDIO_STATUS_PLAY)
audio_flush_and_reload_tracks();
}
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x0032: /* SetDisplayImage */
{
/* The following is the description for the Apple Firmware
* This sets a bitmap image
* that is displayed on the iPod display when connected to the
* device. It replaces the default checkmark bitmap image that is
* displayed when iPod is connected to an external device
*
* Sets a bitmap image that is shown on the iPod display when it is
* connected to the device. The intent is to allow third party
* branding when the iPod is communicating with an external device.
* An image downloaded using this mechanism replaces the default
* checkmark bitmap image that is displayed when iPod is connected
* to an external device. The new bitmap is retained in RAM for as
* long as the iPod remains powered. After a system reset or deep
* sleep state, the new bitmap is lost and the checkmark image
* restored as the default when the iPod next enters Extended
* Interface mode after power-up.
* Before setting a monochrome display image, the device can send
* the Command 0x0033: GetMonoDisplayImageLimits telegram to obtain
* the current iPod display width, height and pixel format.The
* monochrome display information returned in the Command 0x0034:
* ReturnMonoDisplayImageLimits telegram can be useful to the
* device in deciding which type of display image format is suitable
* for downloading to the iPod.
* On iPods withcolor displays, devices can send the Command 0x0039:
* GetColorDisplayImageLimits telegram to obtain the iPod color
* display width,height,and pixel formats. The color display
* information is returned in the Command 0x003A:
* ReturnColorDisplayImageLimits” telegram.
* To set a display image, the device must successfully send
* SetDisplayImage descriptor and data telegrams to the iPod. The
* SetDisplayImage descriptor telegram (telegram index 0x0000) must
* be sent first, as it gives the iPod a description of the image
* to be downloaded. This telegram is shown in below. The image
* descriptor telegram includes image pixel format, image width and
* height, and display row size (stride) in bytes. Optionally, the
* descriptor telegram may also contain the beginning data of the
* display image, as long as it remains within the maximum length
* limits of the telegram.
* Following the descriptor telegram, the SetDisplayImage data
* telegrams (telegram index 0x0001 - 0xNNNN) should be sent using
* sequential telegram indices until the entire image has been sent
* to the iPod.
*
* Note: The SetDisplayImage telegram payload length is limited to
* 500 bytes. This telegram length limit and the size and format of
* the display image generally determine the minimum number of
* telegrams that are required to set a display image.
*
* Note: Starting with the second generation iPod nano with version
* 1.1.2 firmware, the use of the SetDisplayImage command is
* limited to once every 15 seconds over USB transport. The iPod
* classic and iPod 3G nano apply this restriction to both USB and
* UART transports. Calls made to SetDisplayImage more frequently
* than every 15 seconds will return a successful ACK command, but
* the bitmap will not be displayed on the iPod’s screen. Hence use
* of the SetDisplayImage command should be limited to drawing one
* bitmap image per accessory connect. The iPod touch will accept
* the SetDisplayImage command but will not draw it on the iPod’s
* screen.
*
* Below shows the format of a descriptor telegram. This example
* assumes the display image descriptor data exceeds the small
* telegram payload capacity; a large telegram format is shown.
*
* SetDisplayImage descriptor telegram (telegram index = 0x0000)
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x00 Telegram payload marker (large format)
* 3 0xNN Large telegram payload length (bits 15:8)
* 4 0xNN Large telegram payload length (bits 7:0)
* 5 0x04 Lingo ID: Extended Interface lingo
* 6 0x00 Command ID (bits 15:8)
* 7 0x32 Command ID (bits 7:0)
* 8 0x00 Descriptor telegram index (bits 15:8). These fields
* uniquely identify each packet in the SetDisplayImage
* transaction. The first telegram is the Descriptor
* telegram and always starts with an index of 0x0000.
* 9 0x00 Descriptor telegram index (bits 7:0)
* 10 0xNN Display pixel format code. See Below.
* 11 0xNN Imagewidth in pixels (bits 15:8). The number of
* pixels, from left to right, per row.
* 12 0xNN Image width in pixels (bits 7:0)
* 13 0xNN Image height in pixels (bits 15:8). The number of
* rows, from top to bottom, in the image.
* 14 0xNN Image height in pixels (bits 7:0)
* 15 0xNN Row size (stride) in bytes (bits 31:24). The number of
* bytes representing one row of pixels. Each row is
* zero-padded to end on a 32-bit boundary. The
* cumulative size, in bytes, of the image data,
* transferred across all telegrams in this transaction
* is effectively (Row Size * Image Height).
* 16 0xNN Row size (stride) in bytes (bits 23:16)
* 17 0xNN Row size (stride) in bytes (bits 15:8)
* 18 0xNN Row size (stride) in bytes (bits 7:0)
* 19–N 0xNN Display image pixel data
* NN 0xNN Telegram payload checksum byte
*
* SetDisplayImage data telegram (telegram index = 0x0001 - 0xNNNN)
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x00 Telegram payload marker (large format)
* 3 0xNN Large telegram payload length (bits 15:8)
* 4 0xNN Large telegram payload length (bits 7:0)
* 5 0x04 Lingo ID: Extended Interface lingo
* 6 0x00 Command ID (bits 15:8)
* 7 0x32 Command ID (bits 7:0)
* 8 0xNN Descriptor telegram index (bits 15:8). These fields
* uniquely identify each packet in the SetDisplayImage
* transaction. The first telegram is the descriptor
* telegram, shown in Table 6-68 (page 97). The
* remaining n-1 telegrams are simply data telegrams,
* where n is determined by the size of the image.
* 9 0xNN Descriptor telegram index (bits 7:0)
* 10–N 0xNN Display image pixel data
* NN 0xNN Telegram payload checksum byte
*
* Note: A known issue causes SetDisplayImage data telegram
* lengths less than 11 bytes to return a bad parameter error (0x04)
* ACK on 3G iPods.
*
* The iPod display is oriented as a rectangular grid of pixels. In
* the horizontal direction (x-coordinate), the pixel columns are
* numbered, left to right, from 0 to Cmax. In the vertical
* direction (y-coordinate), the pixel rows are numbered, top to
* bottom, from 0 to Rmax. Therefore, an (x,y) coordinate of (0,0)
* represents the upper-leftmost pixel on the display and
* (Cmax,Rmax) represents the lower-rightmost pixel on the display.
* A portion of the iPod display pixel layout is shown below, where
* x is the column number, y is the row number, and (Cmax,Rmax)
* represents the maximum row and column numbers.
*
* Pixel layout
* x
* y 0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0 - Cmax,0
* 0,1 1,1 2,1 3,1 4,1 5,1 6,1 7,1 - Cmax,1
* 0,2 1,2 2,2 3,2 4,2 5,2 6,2 7,2 - Cmax,2
* 0,3 1,3 2,3 3,3 4,3 5,3 6,3 7,3 - Cmax,3
* 0,4 1,4 2,4 3,4 4,4 5,4 6,4 7,4 - Cmax,4
* 0,5 1,5 2,5 3,5 4,5 5,5 6,5 7,5 - Cmax,5
* 0,6 1,6 2,6 3,6 4,6 5,6 6,6 7,6 - Cmax,6
* 0,7 1,7 2,7 3,7 4,7 5,7 6,7 7,7 - Cmax,7
* " " " " " " " " " "
* 0, 1, 2, 3, 4, 5, 6, 7, - Cmax,
* RmaxRmaxRmaxRmaxRmaxRmaxRmaxRmax Rmax
*
* Display pixel format codes
* Display pixel format Code Protocol version
* Reserved 0x00 N/A
* Monochrome, 2 bits per pixel 0x01 1.01
* RGB 565 color, little-endian, 16 bpp 0x02 1.09
* RGB 565 color, big-endian, 16 bpp 0x03 1.09
* Reserved 0x04-0xFF N/A
*
* iPods with color screens support all three image formats. All
* other iPods support only display pixel format 0x01 (monochrome,
* 2 bpp).
*
* Display Pixel Format 0x01
* Display pixel format 0x01 (monochrome, 2 bits per pixel) is the
* pixel format supported by all iPods. Each pixel consists of 2
* bits that control the pixel intensity. The pixel intensities and
* associated binary codes are listed below.
*
* 2 bpp monochrome pixel intensities
* Pixel Intensity Binary Code
* Pixel off (not visible) 00b
* Pixel on 25% (light grey) 01b
* Pixel on 50% (dark grey) 10b
* Pixel on 100% (black) 11b
*
* Each byte of image data contains four packed pixels. The pixel
* ordering within bytes and the byte ordering within 32 bits is
* shown below.
*
* Image Data Byte 0x0000
* Pixel0 Pixel1 Pixel2 Pixel3
* 7 6 5 4 3 2 1 0
*
* Image Data Byte 0x0001
* Pixel4 Pixel5 Pixel6 Pixel7
* 7 6 5 4 3 2 1 0
*
* Image Data Byte 0x0002
* Pixel8 Pixel9 Pixel10 Pixel11
* 7 6 5 4 3 2 1 0
*
* Image Data Byte 0x0003
* Pixel12 Pixel13 Pixel14 Pixel15
* 7 6 5 4 3 2 1 0
*
* Image Data Byte 0xNNNN
* PixelN PixelN+1 PixelN+2 PixelN+3
* 7 6 5 4 3 2 1 0
*
* Display Pixel Formats 0x02 and 0x03
* Display pixel format 0x02 (RGB 565, little-endian) and display
* pixel format 0x03 (RGB 565, big-endian) are available for use
* in all iPods with color screens. Each pixel consists of 16 bits
* that control the pixel intensity for the colors red, green, and
* blue.
* It takes two bytes to represent a single pixel. Red is
* represented by 5 bits, green is represented by 6 bits, and blue
* by the final 5 bits. A 32-bit sequence represents 2 pixels. The
* pixel ordering within bytes and the byte ordering within 32 bits
* for display format 0x02 (RGB 565, little-endian) is shown below.
*
* Image Data Byte 0x0000
* Pixel 0, lower 3 bits of green Pixel 0, all 5 bits of blue
* 7 6 5 4 3 2 1 0
* Image Data Byte 0x0001
* Pixel 0, all 5 bits of red Pixel 0,upper 3 bits of green
* 7 6 5 4 3 2 1 0
*
* Image Data Byte 0x0002
* Pixel 1, lower 3 bits of green Pixel 1, all 5 bits of blue
* 7 6 5 4 3 2 1 0
*
* Image Data Byte 0x0003
* Pixel 1, all 5 bits of red Pixel 1, upper 3 bits of green
* 7 6 5 4 3 2 1 0
*
* The format for display pixel format 0x03 (RGB 565, big-endian, 16
* bpp) is almost identical, with the exception that bytes 0 and 1
* are swapped and bytes 2 and 3 are swapped.
*
*/
cmd_ok(cmd);
break;
}
case 0x0033: /* GetMonoDisplayImageLimits */
{
/* The following is the description for the Apple Firmware
*
* Requests the limiting characteristics of the monochrome image
* that can be sent to the iPod for display while it is connected
* to the device. It can be used to determine the display pixel
* format and maximum width and height of a monochrome image to be
* set using the Command 0x0032: SetDisplayImage telegram. In
* response, the iPod sends a Command 0x0034:
* ReturnMonoDisplayImageLimits telegram to the device with the
* requested display information. The GetMonoDisplayImageLimits
* command is supported by iPods with either monochrome or color
* displays. To obtain color display image limits, use Command
* 0x0039: GetColorDisplayImageLimits.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x33 Command ID (bits 7:0)
* 6 0xC6 Telegram payload checksum byte
*
*/
unsigned char data[] = {0x04, 0x00, 0x34,
LCD_WIDTH >> 8, LCD_WIDTH & 0xff,
LCD_HEIGHT >> 8, LCD_HEIGHT & 0xff,
0x01};
iap_send_pkt(data, sizeof(data));
break;
}
case 0x0034: /* ReturnMonoDisplayImageLimits. See Above*/
/* The following is the description for the Apple Firmware
*
* Returns the limiting characteristics of the monochrome image that
* can be sent to the iPod for display while it is connected to the
* device. The iPod sends this telegram in response to the Command
* 0x0033: GetMonoDisplayImageLimits telegram. Monochrome display
* characteristics include maximum image width and height and the
* display pixel format.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x34 Command ID (bits 7:0)
* 6 0xNN Maximum image width in pixels (bits 15:8)
* 7 0xNN Maximum image width in pixels (bits 7:0)
* 8 0xNN Maximum image height in pixels (bits 15:8)
* 9 0xNN Maximumimage height in pixels (bits 7:0)
* 10 0xNN Display pixel format (see Table 6-70 (page 99)).
* 11 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0035: /* GetNumPlayingTracks */
{
/* The following is the description for the Apple Firmware
*
* Requests the number of tracks in the list of tracks queued to
* play on the iPod. In response, the iPod sends a Command 0x0036:
* ReturnNumPlayingTracks telegram with the count of tracks queued
* to play.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x35 Command ID (bits 7:0)
* 6 0xC4 Telegram payload checksum byte
*
*/
unsigned char data[] = {0x04, 0x00, 0x36,
0x00, 0x00, 0x00, 0x00};
unsigned long playlist_amt = playlist_amount();
put_u32(&data[3], playlist_amt);
iap_send_pkt(data, sizeof(data));
break;
}
case 0x0036: /* ReturnNumPlayingTracks. See Above */
/* The following is the description for the Apple Firmware
*
* Returns the number of tracks in the actual list of tracks queued
* to play, including the currently playing track (if any). The
* iPod sends this telegram in response to the Command 0x0035:
* GetNumPlayingTracks telegram.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x36 Command ID (bits 7:0)
* 6 0xNN Number of tracks playing(bits 31:24)
* 7 0xNN Number of tracks playing(bits 23:16)
* 8 0xNN Number of tracks playing (bits 15:8)
* 9 0xNN Number of tracks playing (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x0037: /* SetCurrentPlayingTrack */
/* The following is the description for the Apple Firmware
*
* Sets the index of the track to play in the Now Playing playlist
* on the iPod. The index that is specified here is obtained by
* sending the Command 0x0035: GetNumPlayingTracks and Command
* 0x001E: GetCurrentPlayingTrackIndex telegrams to obtain the
* number of playing tracks and the current playing track index,
* respectively. In response, the iPod sends an ACK telegram
* indicating the status of the command.
*
* Note: The behavior of this command has changed. Before the
* 2G nano, if this command was sent with the current playing track
* index the iPod would pause playback momentarily and then resume.
* Starting with the 2G nano, the iPod restarts playback of the
* current track from the beginning. Older iPods will not be
* updated to the new behavior.
*
* Note: This command is usable only when the iPod is in a playing
* or paused state. If the iPod is stopped, this command fails.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x07 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x37 Command ID (bits 7:0)
* 6 0xNN New current playing track index (bits 31:24)
* 7 0xNN New current playing track index (bits 23:16)
* 8 0xNN New current playing track index (bits 15:8)
* 9 0xNN New current playing track index (bits 7:0)
* 10 0xNN Telegram payload checksum byte
*
*/
{
int paused = !!(audio_status() & AUDIO_STATUS_PAUSE);
long tracknum = get_u32(&buf[3]);
audio_pause();
audio_skip(tracknum - playlist_next(0));
if (!paused)
audio_resume();
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x0038: /* SelectSortDBRecord */
/* The following is the description for the Apple Firmware
*
* Selects one or more records in the iPod database, based on a
* category-relative index. For example, selecting category 2
* (Artist), record index 1, and sort order 3 (Album) results in a
* list of selected tracks (records) from the second artist in the
* artist list, sorted by album name. Selections are additive and
* limited by the category hierarchy. Subsequent selections are
* made based on the subset of records resulting from previous
* selections and not from the entire database. The database
* category types are shown above. The sort order options and codes
* are shown below.
*
* SelectSortDBRecord telegram
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x09 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x38 Command ID (bits 7:0)
* 6 0xNN Database category type.
* 7 0xNN Category record index (bits 31:24)
* 8 0xNN Category record index (bits 23:16)
* 9 0xNN Category record index (bits 15:8)
* 10 0xNN Category record index (bits 7:0)
* 11 0xNN Database sort type.
* 12 0xNN Telegram payload checksum byte
*
* Database sort order options
* Sort Order Code Protocol version
* Sort by genre 0x00 1.00
* Sort by artist 0x01 1.00
* Sort by composer 0x02 1.00
* Sort by album 0x03 1.00
* Sort by name 0x04 1.00
* Sort by playlist 0x05 1.00
* Sort by release date 0x06 1.08
* Reserved 0x07 - 0xFE N/A
* Use default sort type 0xFF 1.00
*
* The default order of song and audiobook tracks on the iPod is
* alphabetical by artist, then alphabetical by that artist's
* albums, then ordered according to the order of the tracks on the
* album.
* For podcasts, the default order of episode tracks is reverse
* chronological. That is, the newest ones are first,then
* alphabetical by podcast name.
* The SelectSortDBRecord command can be used to sort all the song
* and audiobook tracks on the iPod alphabetically as follows:
* 1. Command 0x0016: ResetDBSelection
* 2. Command 0x0018: GetNumberCategorizedDBRecords for the Playlist
* category.
* 3. SelectSortDBRecord based on the Playlist category, using a
* record index of 0 to select the All Tracks
* playlist and the sort by name (0x04) sort
* order.
* 4. GetNumberCategorizedDBRecords for the Track category.
* 5. Command 0x001A :RetrieveCategorizedDatabaseRecords based on
* the Track category, using a start index of 0
* and an end index of the number of records
* returned by the call to
* GetNumberCategorizedDBRecords in step 4.
*
* The sort order of artist names ignores certain articles such
* that the artist “The Doors” is sorted under the letter ‘D’ and
* not ‘T’; this matches the behavior of iTunes. The sort order is
* different depending on the language setting used in the iPod.
* The list of ignored articles may change in the future without
* notice.
* The SelectDBRecord command may also be used to select a database
* record with the default sort order.
*
* Note: The sort order field is ignored for the Audiobook category.
* Audiobooks are automatically sorted by track title. The sort
* order for podcast tracks defaults to release date, with the
* newest track coming first.
*
* Selects one or more records in the iPod database, based on a
* category-relative index. This appears to be hardcoded hierarchy
* decided by Apple that the external devices follow.
* This is as follows for all except podcasts,
*
* All (highest level),
* Playlist,
* Genre or Media Kind,
* Artist or Composer,
* Album,
* Track or Audiobook (lowest)
*
* for Podcasts, the order is
*
* All (highest),
* Podcast,
* Episode
* Track (lowest)
*
* Categories are
*
* 0x00 Reserved
* 0x01 Playlist
* 0x02 Artist
* 0x03 Album
* 0x04 Genre
* 0x05 Track
* 0x06 Composer
* 0x07 Audiobook
* 0x08 Podcast
* 0x09 - 0xff Reserved
*
* Sort Order optiona and codes are
*
* 0x00 Sort by Genre
* 0x01 Sort by Artist
* 0x02 Sort by Composer
* 0x03 Sort by Album
* 0x04 Sort by Name (Song Title)
* 0x05 Sort by Playlist
* 0x06 Sort by Release Date
* 0x07 - 0xfe Reserved
* 0xff Use default Sort Type
*
* Packet format (offset in data[]: Description)
* 0x00: Lingo ID: Extended Interface Protocol Lingo, always 0x04
* 0x01-0x02: Command, always 0x0038
* 0x03: Database Category Type
* 0x04-0x07: Category Record Index
* 0x08 Database Sort Type
*
* On Rockbox, if the recordtype is playlist, we load the selected
* playlist and start playing from the first track.
* If the recordtype is track, we play that track from the current
* playlist.
* On anything else we just play the current track from the current
* playlist.
* cur_dbrecord[0] is the recordtype
* cur_dbrecord[1-4] is the u32 of the record number requested
* which might be a playlist or a track number depending on
* the value of cur_dbrecord[0]
*/
{
memcpy(cur_dbrecord, buf + 3, 5);
int paused = !!(audio_status() & AUDIO_STATUS_PAUSE);
unsigned int number_of_playlists = nbr_total_playlists();
uint32_t index;
uint32_t trackcount;
index = get_u32(&cur_dbrecord[1]);
trackcount = playlist_amount();
if ((cur_dbrecord[0] == 0x05) && (index > trackcount))
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
if ((cur_dbrecord[0] == 0x01) && (index > (number_of_playlists + 1)))
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
switch (cur_dbrecord[0])
{
case 0x01: /* Playlist*/
{
if (index != 0x00) /* 0x00 is the On-The-Go Playlist and
we do nothing with it */
{
audio_pause();
audio_skip(-iap_get_trackindex());
playlist_sort(NULL, true);
last_selected_playlist = index;
seek_to_playlist(last_selected_playlist);
}
break;
}
case 0x02: /* Artist Do Nothing */
case 0x03: /* Album Do Nothing */
case 0x04: /* Genre Do Nothing */
case 0x06: /* Composer Do Nothing */
break;
case 0x05: /* Track*/
{
audio_pause();
audio_skip(-iap_get_trackindex());
playlist_sort(NULL, true);
audio_skip(index - playlist_next(0));
break;
}
}
if (!paused)
audio_resume();
/* respond with cmd ok packet */
cmd_ok(cmd);
break;
}
case 0x0039: /* GetColorDisplayImageLimits */
/* The following is the description for the Apple Firmware
*
* Requests the limiting characteristics of the color image that
* can be sent to the iPod for display while it is connected to
* the device. It can be used to determine the display pixel format
* and maximum width and height of a color image to be set using
* the Command 0x0032: SetDisplayImage telegram. In response, the
* iPod sends a Command 0x003A: ReturnColorDisplayImageLimits
* telegram to the device with the requested display information.
* This command is supported only by iPods with color displays.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x03 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x39 Command ID (bits 7:0)
* 6 0xC0 Telegram payload checksum byte
*
*/
{
/* Set the same as the ReturnMonoDisplayImageLimits */
unsigned char data[] = {0x04, 0x00, 0x3A,
LCD_WIDTH >> 8, LCD_WIDTH & 0xff,
LCD_HEIGHT >> 8, LCD_HEIGHT & 0xff,
0x01};
iap_send_pkt(data, sizeof(data));
break;
}
case 0x003A: /* ReturnColorDisplayImageLimits See Above */
/* The following is the description for the Apple Firmware
*
* Returns the limiting characteristics of the color image that can
* be sent to the iPod for display while it is connected to the
* device. The iPod sends this telegram in response to the Command
* 0x0039: GetColorDisplayImageLimits telegram. Display
* characteristics include maximum image width and height and the
* display pixel format.
*
* Note: If the iPod supports multiple display image formats, a five
* byte block of additional image width, height, and pixel format
* information is appended to the payload for each supported display
* format. The list of supported color display image formats
* returned by the iPod may change in future software versions.
* Devices must be able to parse a variable length list of supported
* color display formats to search for compatible formats.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0xNN Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x3A Command ID (bits 7:0)
* 6 0xNN Maximum image width in pixels (bits 15:8)
* 7 0xNN Maximum image width in pixels (bits 7:0)
* 8 0xNN Maximum image height in pixels (bits 15:8)
* 9 0xNN Maximum image height in pixels (bits 7:0)
* 10 0xNN Display pixel format (see Table 6-70 (page 99)).
* 11-N 0xNN Optional display image width, height, and pixel format
* for the second to nth supported display formats,
* if present.
* NN 0xNN Telegram payload checksum byte
*
*/
{
/* We should NEVER receive this command so ERROR if we do */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
case 0x003B: /* ResetDBSelectionHierarchy */
{
/* The following is the description for the Apple Firmware
*
* This command carries a single byte in its payload (byte 6). A
* hierarchy selection value of 0x01 means that the accessory wants
* to navigate the music hierarchy; a hierarchy selection value of
* 0x02 means that the accessory wants to navigate the video
* hierarchy.
*
* Byte Value Meaning
* 0 0xFF Sync byte (required only for UART serial)
* 1 0x55 Start of telegram
* 2 0x04 Telegram payload length
* 3 0x04 Lingo ID: Extended Interface lingo
* 4 0x00 Command ID (bits 15:8)
* 5 0x3B Command ID (bits 7:0)
* 6 0x01 or 0x02 Hierarchy selection
* 7 0xNN Telegram payload checksum byte
*
* Note: The iPod will return an error if a device attempts to
* enable an unsupported hierarchy, such as a video hierarchy on an
* iPod model that does not support video.
*/
dbrecordcount = 0;
cur_dbrecord[0] = 0;
put_u32(&cur_dbrecord[1],0);
switch (buf[3])
{
case 0x01: /* Music */
{
cmd_ok(cmd);
break;
}
default: /* Anything else */
{
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
}
}
default:
{
#ifdef LOGF_ENABLE
logf("iap: Unsupported Mode04 Command");
#endif
/* The default response is IAP_ACK_BAD_PARAM */
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
}
}
|