FreeCalypso > hg > freecalypso-tools

annotate target-utils/buzplayer/melplay.c @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents 8a200d65c6a0
children 158dd05fb9f9
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1 #include "types.h"
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2 #include "melody.h"
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3
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4 extern struct melentry *melody_buf_start, *melody_buf_tailptr;
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5
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6 #define ARMIO_LOAD_TIM (*(volatile u16 *) 0xFFFE4808)
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7 #define BUZZ_LIGHT_REG (*(volatile u16 *) 0xFFFE480E)
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8
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9 void
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10 melody_play()
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11 {
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12 struct melentry *p;
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13 int count;
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14
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15 wait_for_tdma_frame();
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16 for (p = melody_buf_start; p < melody_buf_tailptr; p++) {
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17 if (p->tone) {
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18 ARMIO_LOAD_TIM = p->tone;
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19 BUZZ_LIGHT_REG = 1;
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20 } else
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21 BUZZ_LIGHT_REG = 0;
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22 for (count = p->dur; count; count--)
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23 wait_for_tdma_frame();
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24 BUZZ_LIGHT_REG = 0;
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25 }
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26 }