FreeCalypso > hg > fc-magnetite
view cdg211/prim/mmss.pdf @ 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 | 56abf6cf8a0b |
children |
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;******************************************************************************** ;*** File : mmss.pdf ;*** Creation : Fri Jun 08 13:57:56 CST 2007 ;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1 ;*** Copyright : (c) Texas Instruments AG, Berlin Germany 2002 ;******************************************************************************** ;*** Document Type : Service Access Point Specification ;*** Document Name : mmss ;*** Document No. : 6147.105.97.102 ;*** Document Date : 2002-07-19 ;*** Document Status: BEING_PROCESSED ;*** Document Author: HM ;******************************************************************************** PRAGMA SRC_FILE_TIME "Mon Nov 24 15:49:30 2003" PRAGMA LAST_MODIFIED "2002-07-19" PRAGMA ID_AND_VERSION "6147.105.97.102" CONST MAX_SDU_LEN 1 ; maximum service data unit length VALTAB VAL_ti VAL 0 - 6 "ms originated transaction" VAL 8 - 14 "ms originated transaction" VAL 7 TI_RES_MO "reserved" VAL 15 TI_RES_MT "reserved" VAR cause "MM cause" S VAR l_buf "length in bits" S VAR o_buf "offset in bits" S VAR buf "bit buffer" B VAR ti "transaction identifier" B VAL @p_mmss - VAL_ti@ VAR d1 "dummy, not used" B VAR d2 "dummy, not used" B COMP sdu "Service Data Unit" { l_buf ; length in bits o_buf ; offset in bits buf [MAX_SDU_LEN] ; bit buffer } ; MMSS_ESTABLISH_REQ 0x80000008 ; MMSS_RELEASE_REQ 0x80010008 ; MMSS_DATA_REQ 0x80020008 ; MMSS_DATA_IND 0x80004008 ; MMSS_ERROR_IND 0x80014008 ; MMSS_ESTABLISH_CNF 0x80024008 ; MMSS_ESTABLISH_IND 0x80034008 ; MMSS_RELEASE_IND 0x80044008 PRIM MMSS_ESTABLISH_REQ 0x80000008 { ti ; transaction identifier } PRIM MMSS_RELEASE_REQ 0x80010008 { ti ; transaction identifier } PRIM MMSS_DATA_REQ 0x80020008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_DATA_IND 0x80004008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_ERROR_IND 0x80014008 { ti ; transaction identifier cause ; error cause } PRIM MMSS_ESTABLISH_CNF 0x80024008 { ti ; transaction identifier } PRIM MMSS_ESTABLISH_IND 0x80034008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_RELEASE_IND 0x80044008 { ti ; transaction identifier cause ; release cause }