FreeCalypso > hg > fc-magnetite
view src/cs/drivers/drv_app/rtc/rtc_task.c @ 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 | 945cf7f506b2 |
children |
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/** * @file rtc_task.c * * Coding of the main RTC function : rtc_core * This function loop in the process message function for waiting messages. * * @author Laurent Sollier (l-sollier@ti.com) * @version 0.1 */ /* * History: * * Date Author Modification * ------------------------------------ * 10/24/2001 L Sollier Create * * * (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved */ #include "rtc/rtc_env.h" #include "rv/rv_general.h" #include "rvf/rvf_api.h" #include "rvm/rvm_use_id_list.h" #define RTC_MAILBOX_USED RVF_TASK_MBOX_0 /* External declaration until Riviera 1.6 is available*/ extern UINT8 rtc_handle_msg(T_RV_HDR* msg_p); /** * @name Functions implementation * */ /*@{*/ /** * function: rtc_core */ T_RV_RET rtc_core(void) { BOOLEAN error_occured = FALSE; T_RV_HDR * msg_ptr; UINT16 received_event; rvf_send_trace("RTC: Initialization", 19, NULL_PARAM, RV_TRACE_LEVEL_DEBUG_HIGH, RTC_USE_ID ); /* loop to process messages */ while (error_occured == FALSE) { /* Wait for the necessary events. */ received_event = rvf_wait ( 0xffff,0); if (received_event & RVF_TASK_MBOX_0_EVT_MASK) { /* Read the message */ msg_ptr = (T_RV_HDR *) rvf_read_mbox(RTC_MAILBOX_USED); rtc_handle_msg(msg_ptr); } } return RV_OK; }