1 /* Copyright (c) 2013 The Chromium OS Authors. All rights reserved. 2 * Use of this source code is governed by a BSD-style license that can be 3 * found in the LICENSE file. 4 * 5 * Private declarations for vboot_audio.c. Defined here for easier testing. 6 */ 7 8 #ifndef VBOOT_REFERENCE_VBOOT_AUDIO_PRIVATE_H_ 9 #define VBOOT_REFERENCE_VBOOT_AUDIO_PRIVATE_H_ 10 11 #include "vboot_api.h" 12 #include "vboot_audio.h" 13 14 typedef struct VbDevMusicNote { 15 uint16_t msec; 16 uint16_t frequency; 17 } __attribute__((packed)) VbDevMusicNote; 18 19 typedef struct VbDevMusic { 20 uint8_t sig[4]; /* "$SND" */ 21 uint32_t checksum; /* crc32 over count & all notes */ 22 uint32_t count; /* number of notes */ 23 VbDevMusicNote notes[1]; /* gcc allows [0], MSVC doesn't */ 24 /* more VbDevMusicNotes follow immediately */ 25 } __attribute__((packed)) VbDevMusic; 26 27 struct VbAudioContext { 28 /* note tracking */ 29 VbDevMusicNote *music_notes; 30 uint32_t note_count; 31 uint32_t next_note; 32 33 /* implementation flags */ 34 int background_beep; 35 int free_notes_when_done; 36 37 /* sound tracking */ 38 uint16_t current_frequency; 39 uint64_t play_until; 40 uint64_t last_time; 41 }; 42 43 #ifdef FOR_TEST 44 #define CUSTOM_MUSIC 45 #endif 46 47 #ifdef CUSTOM_MUSIC 48 void *VbExGetMusicPtr(void); 49 uint32_t VbExMaxMusicSize(void); 50 #define CUSTOM_MUSIC_NOTES VbExGetMusicPtr() 51 #define CUSTOM_MUSIC_MAXSIZE VbExMaxMusicSize() 52 #else 53 #define CUSTOM_MUSIC_NOTES 0 54 #define CUSTOM_MUSIC_MAXSIZE 0 55 #endif 56 57 #endif /* VBOOT_REFERENCE_VBOOT_AUDIO_PRIVATE_H_ */ 58
