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annotate src/gpf2/osl/os_mis_ir.c @ 680:ee3ac8c617cb

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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 2d1e5ad1d54f
children
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1 /*
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2 * This C module is a reconstruction based on the disassembly of
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3 * os_mis.obj in frame_na7_db_ir.lib from the Leonardo package.
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4 */
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5
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6 /* subset of included headers from COFF symtab: */
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7 #include "nucleus.h"
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8 #include "typedefs.h"
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9 #include "os.h"
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10 #include "gdi.h"
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11 #include "os_types.h"
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12 #include "os_glob.h"
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14 extern unsigned os_tick_to_time_multiplier;
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15
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16 GLOBAL LONG
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17 os_GetTime(OS_HANDLE Caller, OS_TIME *Time)
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18 {
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19 UNSIGNED Value;
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21 Value = NU_Retrieve_Clock();
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22 *Time = SYSTEM_TICKS_TO_TIME(Value);
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23 return(OS_OK);
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24 }