FreeCalypso > hg > fc-magnetite
annotate src/cs/services/audio/audio_var_i.h @ 680:ee3ac8c617cb
armio.c: set GPIO2 output high initially
On TI-canonical platforms GPIO2 is DCD modem control output. In TI's
original code the AI_InitIOConfig() function called from Init_Target()
would configure GPIO2 as an output and set the initial output value to
low, but then the init code in uartfax.c called from Init_Serial_Flows()
would immediately change it to high, corresponding to DCD not asserted.
The result is a momentary asserted-state glitch on the DCD output.
The present change eliminates this glitch, setting DCD output to
not-asserted initially like it should be.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 25 Jun 2020 03:17:43 +0000 |
| parents | 838eeafb0051 |
| children |
| rev | line source |
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src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
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1 /********************************************************************************/ |
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Mychaela Falconia <falcon@freecalypso.org>
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2 /* */ |
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3 /* File Name: audio_var_i.h */ |
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4 /* */ |
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Mychaela Falconia <falcon@freecalypso.org>
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5 /* Purpose: This header contains the global variables */ |
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6 /* that are used by the AUDIO layer. */ |
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Mychaela Falconia <falcon@freecalypso.org>
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7 /* */ |
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Mychaela Falconia <falcon@freecalypso.org>
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8 /* Note: */ |
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Mychaela Falconia <falcon@freecalypso.org>
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9 /* None. */ |
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10 /* */ |
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11 /* Revision History: */ |
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12 /* 11 May 01 Francois Mazard - Stephanie Gerthoux Create */ |
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13 /* */ |
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14 /* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved. */ |
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15 /* */ |
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16 /********************************************************************************/ |
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17 #ifndef _AUDIO_VAR_I_H_ |
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18 #define _AUDIO_VAR_I_H_ |
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19 |
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20 #ifdef __cplusplus |
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21 extern "C" |
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22 { |
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23 #endif |
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24 |
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25 /* Define a pointer to the Global Environment Control block */ |
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26 extern T_AUDIO_ENV_CTRL_BLK *p_audio_gbl_var; |
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27 |
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28 #ifdef __cplusplus |
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29 } |
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30 #endif |
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31 #endif /* _AUDIO_VAR_I_ */ |
