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Fix audio loop for long-delay keyboard reads.

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BUG=chrome-os-partner:7428
TEST=manual

Switch to dev-mode, turn it on, see how long it takes.

With gbb.flags == 1 (factory mode), it should take 2 seconds.
(You'll see a warning on the screen if gbb.flags is nonzero)

With gbb.flags == 0 (after factory install), it should take 30 seconds.
You should hear two beeps at 20 seconds.

Change-Id: I4f14128b87d3482e291b1b40a11a6d27c72c1ad1
Reviewed-on: https://gerrit.chromium.org/gerrit/14534
Tested-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Commit-Ready: Bill Richardson <wfrichar@chromium.org>
This commit is contained in:
Bill Richardson
2012-01-19 13:47:33 -08:00
committed by Stefan Reinauer
parent 885a9774ef
commit 037dba2124
4 changed files with 131 additions and 83 deletions
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15
firmware/lib/include/vboot_audio_private.h
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@@ -25,12 +25,19 @@ typedef struct VbDevMusic {
} __attribute__((packed)) VbDevMusic;
struct VbAudioContext {
uint32_t note_count;
/* note tracking */
VbDevMusicNote* music_notes;
int free_notes_when_done;
uint32_t current_note;
uint32_t current_note_loops;
uint32_t note_count;
uint32_t next_note;
/* implementation flags */
int background_beep;
int free_notes_when_done;
/* sound tracking */
uint16_t current_frequency;
uint64_t play_until;
uint64_t last_time;
};
#ifdef CUSTOM_MUSIC